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JP5246049B2 - Induction heating cooker - Google Patents

Induction heating cooker
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Publication number
JP5246049B2
JP5246049B2JP2009136974AJP2009136974AJP5246049B2JP 5246049 B2JP5246049 B2JP 5246049B2JP 2009136974 AJP2009136974 AJP 2009136974AJP 2009136974 AJP2009136974 AJP 2009136974AJP 5246049 B2JP5246049 B2JP 5246049B2
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power
opening
exhaust port
circuit board
main body
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JP2010282910A (en
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賢治 小川
和一 岡田
幸二郎 水谷
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Translated fromJapanese

本発明は、誘導加熱調理器に関するものである。  The present invention relates to an induction heating cooker.

従来、この種の誘導加熱調理器としては、例えば、特許文献1(特開昭61−260585号公報)に記載されているようなものがあった。  Conventionally, as this type of induction heating cooker, there has been one as described in Patent Document 1 (Japanese Patent Laid-Open No. 61-260585), for example.

特許文献1では、電磁調理器の電源入力部と単相交流電源の各ラインとを接続する2個のチョークコイルと、チョークコイルの電磁調理器側の各端子を接続するバイパスコンデンサと、前記チョークコイルを覆うカバーとを備え、カバーは、誘導加熱コイルに対向する面が非磁性金属板からなり、他の面が開口を有する構成としている。  In Patent Document 1, two choke coils that connect a power input unit of an electromagnetic cooker and each line of a single-phase AC power supply, a bypass capacitor that connects each terminal of the choke coil on the electromagnetic cooker side, and the choke A cover that covers the coil, and the cover is configured such that the surface facing the induction heating coil is made of a nonmagnetic metal plate and the other surface has an opening.

特開昭61−260585号公報JP-A 61-260585

しかしながら、近年、この種の誘導加熱調理器は、総電力5800Wの機器が主流となっており、200Vであるが、約29Aの電流が流れるため、前記従来の構成では、電源部に配したチョークコイル、コンデンサ等を含む電子部品の温度上昇が電源経路接続部内の電気抵抗によって高くなってしまう。部品によっては、冷却対策が必要となってしまい、非磁性金属板で覆うことで対ノイズ性の向上は達成されるが、冷却性能の悪化というトレードオフを有しているという課題を有していた。また、チョークコイル等、電源経路接続部内の部品の冷却性能向上のために、排気口近傍に電源経路接続部を設け、電源経路接続部の発熱を直接機器本体に排気させるといった手段も考えられるが、使用中に鍋から吹き零れた液体が排気口から電源経路接続部に侵入し、機器の故障となる危険性も生じるという課題も有していた。  However, in recent years, this type of induction heating cooker has been mainly used for equipment with a total power of 5800 W and is 200 V. However, since a current of about 29 A flows, the choke provided in the power supply section in the conventional configuration. The temperature rise of electronic components including coils, capacitors and the like is increased by the electric resistance in the power supply path connection portion. Depending on the part, cooling measures are required, and by covering with a non-magnetic metal plate, improvement in noise resistance is achieved, but there is a problem that there is a trade-off of deterioration in cooling performance It was. In addition, in order to improve the cooling performance of components in the power path connection section such as a choke coil, a means of providing a power path connection section in the vicinity of the exhaust port and exhausting heat generated in the power path connection section directly to the device main body can be considered. In addition, there has been a problem that the liquid that has been blown from the pan during use enters the power supply path connection portion from the exhaust port, resulting in a risk of equipment failure.

本発明は、前記従来の課題を解決するもので、電源経路接続部への外部からの液体の浸入を防ぐとともに、電源経路接続部の冷却性能を向上する誘導加熱調理器を提供することを目的とする。  The present invention solves the above-described conventional problems, and an object thereof is to provide an induction heating cooker that prevents liquid from entering the power path connecting portion from the outside and improves the cooling performance of the power path connecting portion. And

前記従来の課題を解決するために、本発明の誘導加熱調理器は、本体を構成する外郭と、本体上面に設けられた被加熱物を戴置するためのトッププレートと、前記トッププレートの下方に設けられた前記被加熱物を誘導加熱する加熱コイルと、本体前方に設けた開口部と、前記開口部を通して本体外の空気を吸気するファンと、前記ファンより後方へ送風された冷却風の下流側に設けられ前記加熱コイルの出力を制御する回路基板と、前記外郭後方の上面に設けられた前記冷却風の出口となる排気口と、前記外郭後部を貫通して商用電源を供給する電源コードと、前記電源コードと前記回路基板に導く電源経路とを接続する電源経路接続部と、前記外郭後側面に取り付けられ、前記電源経路接続部を覆うようにダクトを形成する金属カバーとを備え、前記ダクトは下方と上面に開口部を有し、前記上面の開口部は上方から見て前記排気口と重ならないように前記排気口の近傍で、かつ前記排気口から左右方向にずらした位置に設けられ、前記冷却風が前記下方の開口部から前記上面の開口部を通り、前記上面の開口部から前記排気口に通ずるように構成したことを特徴とする。In order to solve the above-mentioned conventional problems, an induction heating cooker according to the present invention includes an outer shell constituting a main body, a top plate for placing an object to be heated provided on the upper surface of the main body, and a lower portion of the top plate. A heating coil for inductively heating the object to be heated, an opening provided in front of the main body, a fan for sucking air outside the main body through the opening, and cooling air blown rearward from the fan A circuit board provided on the downstream side for controlling the output of the heating coil, an exhaust port serving as an outlet for the cooling air provided on the upper surface behind the outer shell, and a power source for supplying commercial power through the rear portion of the outer shell code, and the cord and the circuit power supply path connecting unit for connecting the power supply path leading to the substrate, mounted on the outerrear side, and a metal cover forming a duct so as to cover the power supply path connecting portion Wherein the duct has an opening downward andan upper surface, an opening portion of theupper surface inthe vicinity of the exhaust port so as not to overlap with the exhaust port as viewed fromabove, and shifted in the lateral direction from the exhaust port provided in a position, the cooling air passes through the opening in the top surface from the opening of the lower, and characterized by being configured from an opening ofthe upper surfaceso that leading to the exhaust port.

これによって、電源経路接続部の温度上昇を抑制できるとともに、電源経路接続部への
加熱コイルからの漏洩磁束やスイッチング電源から発せられる電磁ノイズからのノイズ遮蔽性能を向上することができる。また、さらに、ダクトの上面開口部を排気口と重ならないように配置することで、使用者が調理中に排気口に水やスープ等の液体を零してしまった場合においても、電源経路接続部には液体は浸入せず、ショートの危険がなく安心して使用することができる。
As a result, the temperature rise of the power supply path connecting portion can be suppressed, and the noise shielding performance from the magnetic flux leaked from the heating coil to the power supply path connecting portion and the electromagnetic noise generated from the switching power supply can be improved. In addition, by arranging the top opening of the duct so that it does not overlap the exhaust port, even if the user spills liquid such as water or soup into the exhaust port during cooking, the power path connection Liquid does not enter the part, so there is no danger of short circuit and it can be used safely.

本発明の誘導加熱調理器は、上下に開口部を有し、電源経路接続部を覆う金属製のダクト上方の開口部と、排気口を機器上方から見て重ならないように設けることで、機器後方に設けられた電源経路接続部を排気口からの水の浸入を防ぎつつ、冷却性能およびノイズ遮蔽性能を向上することができる。  The induction heating cooker of the present invention has an opening on the top and bottom, and is provided so that the opening above the metal duct covering the power path connection portion and the exhaust port do not overlap when viewed from above the device. Cooling performance and noise shielding performance can be improved while preventing the ingress of water from the exhaust port through the power path connecting portion provided at the rear.

本発明の第1の実施の形態における誘導加熱調理器の断面図Sectional drawing of the induction heating cooking appliance in the 1st Embodiment of this invention本発明の第1の実施の形態における誘導加熱調理器の内部の構成を示す斜視概略図The perspective schematic diagram which shows the structure inside the induction heating cooking appliance in the 1st Embodiment of this invention.本発明の第1の実施の形態における誘導加熱調理器のノイズフィルタ取り付け部詳細図Detailed view of the noise filter mounting portion of the induction heating cooker in the first embodiment of the present invention本発明の第1の実施の形態における誘導加熱調理器のブロック図The block diagram of the induction heating cooking appliance in the 1st Embodiment of this invention本発明の第3の実施の形態を示す誘導加熱調理器の概略図Schematic diagram of an induction heating cooker showing a third embodiment of the present invention本発明の第4の実施の形態を示す誘導加熱調理器の概略図Schematic of induction heating cooker showing the fourth embodiment of the present invention本発明の第5の実施の形態を示す誘導加熱調理器の概略図Schematic of the induction heating cooking appliance which shows the 5th Embodiment of this invention本発明の第6の実施の形態を示す誘導加熱調理器の概略図Schematic of the induction heating cooking appliance which shows the 6th Embodiment of this invention

第1の発明は、本体を構成する外郭と、本体上面に設けられた被加熱物を戴置するためのトッププレートと、トッププレートの下方に設けられた被加熱物を誘導加熱する加熱コイルと、本体前方に設けた開口部と、開口部を通して本体外の空気を吸気するファンと、ファンより後方へ送風された冷却風の下流側に設けられ加熱コイルの出力を制御する回路基板と、外郭後方の上面に設けられた冷却風の出口となる排気口と、外郭後部を貫通して商用電源を供給する電源コードと、電源コードの端子と回路基板に導く電源経路とを接続する電源経路接続部と、外郭後側面に電源経路接続部を覆う金属により形成されたダクトとを備え、ダクトは下方と上面に開口部を有し、上面の開口部は上方から見て排気口と重ならないように排気口の近傍で、かつ前記排気口から左右方向にずらした位置に設けられ、前記冷却風が前記下方の開口部から前記上面の開口部を通り、前記上面の開口部から排気口に通ずるように構成することにより、電源経路接続部の温度上昇を抑制できるとともに、電源経路接続部への加熱コイルからの漏洩磁束やスイッチング電源から発せられる電磁ノイズからのノイズ遮蔽性能を向上することができる。また、さらに、ダクトの上面開口部を排気口と重ならないように配置することで、使用者が調理中に排気口に水やスープ等の液体を零してしまった場合においても、電源経路接続部には液体は浸入せず、ショートの危険がなく安心して使用することができる。1st invention, the outline which comprises a main body, the top plate for mounting the to-be-heated object provided in the main body upper surface, the heating coil which carries out induction heating of the to-be-heated object provided under the top plate, An opening provided in the front of the main body, a fan that sucks air outside the main body through the opening, a circuit board that is provided downstream of the cooling air blown rearward from the fan and controls the output of the heating coil, and an outer shell Power supply path connection that connects the exhaust outlet that is the outlet of the cooling air provided on the rear upper surface, the power cord that feeds the commercial power through the rear part of the outer shell, and the power supply path that leads the terminal of the power cord and the circuit board And a duct made of metal covering the power path connection portion on the outerside of the outer shell, the duct has openings on the lower andupper surfaces, and the opening on theupper surface does not overlap the exhaust port when viewed from abovein the vicinity of the exhaust portAnd provided at a position shifted in the lateral direction from the exhaust port by the cooling air passes through the opening in the top surface from the opening of the lower, configuredto lead to the exhaust port from the opening ofthe upper surface, While suppressing the temperature rise of a power path connection part, the noise shielding performance from the leakage magnetic flux from the heating coil to a power path connection part or the electromagnetic noise emitted from a switching power supply can be improved. In addition, by arranging the top opening of the duct so that it does not overlap the exhaust port, even if the user spills liquid such as water or soup into the exhaust port during cooking, the power path connection Liquid does not enter the part, so there is no danger of short circuit and it can be used safely.

第2の発明は、特に、第1の発明のダクトが電源経路接続部と回路基板の間に設けられたノイズフィルタをさらに覆うとすることにより、ノイズフィルタの冷却性能を向上することができるとともに、ノイズフィルタのノイズ遮蔽性能を向上させることができる。  In the second invention, in particular, the duct of the first invention further covers the noise filter provided between the power path connecting portion and the circuit board, thereby improving the cooling performance of the noise filter. The noise shielding performance of the noise filter can be improved.

第3の発明は、特に、第1または第2の発明の回路基板と外郭底面の間に底面と略垂直な側壁を設け、ファンからの冷却風を回路基板と外郭底面と側壁に囲まれた経路に流すとすることにより、冷却風をダクト内に効率よく流すことができ、冷却性能を向上することができる。  In the third invention, in particular, a side wall substantially perpendicular to the bottom surface is provided between the circuit board of the first or second invention and the outer bottom surface, and the cooling air from the fan is surrounded by the circuit board, the outer bottom surface and the side wall. By letting it flow in the path, the cooling air can be efficiently flowed into the duct, and the cooling performance can be improved.

第4の発明は、特に、第1または第2の発明の回路基板と外郭底面の間に底面と略平行な仕切板を設け、ファンからの冷却風を仕切板と外郭底面の間に流すとすることにより、冷却風をダクト内に効率よく流すことができ、冷却性能を向上することができる。  In the fourth invention, in particular, when a partition plate substantially parallel to the bottom surface is provided between the circuit board of the first or second invention and the outer bottom surface, the cooling air from the fan is allowed to flow between the partition plate and the outer bottom surface. By doing so, the cooling air can be efficiently flowed into the duct, and the cooling performance can be improved.

第5の発明は、特に、第4の発明の仕切板と外郭底面に当接する略垂直な側壁を設け冷却風を仕切板と外郭底面と側壁に囲まれた経路に流すとすることにより、冷却風をダクト内に効率よく流すことができ、冷却性能を向上することができる。  In particular, the fifth aspect of the invention provides cooling by providing a substantially vertical side wall that abuts against the partition plate of the fourth aspect of the invention and the bottom surface of the outer shell, and flowing cooling air through a path surrounded by the partition plate, the outer bottom surface, and the side wall. Wind can be efficiently flowed into the duct, and the cooling performance can be improved.

第6の発明は、特に、第5の発明の仕切板と外郭底面と側壁との間に空間をさらに構成し、前記空間は、排気口と連結した経路を構成しているとすることにより、排気口から侵入した水等の液体が排気口から前記空間に流入することで、冷却風の経路に水等の液体が侵入し液体がファンの風に乗って電源経路接続部に付着することがなく、使用者が調理中に排気口に水やスープ等の液体を零してしまった場合においても、ショートの危険がなく、安心して使用することができる。  In the sixth aspect of the invention, in particular, a space is further formed between the partition plate of the fifth aspect of the invention, the outer bottom and the side wall, and the space constitutes a path connected to the exhaust port. When liquid such as water that has entered from the exhaust port flows into the space from the exhaust port, liquid such as water may enter the cooling air path, and the liquid may ride on the wind of the fan and adhere to the power path connection part. In addition, even when the user spills liquid such as water or soup into the exhaust port during cooking, there is no danger of short-circuiting, and the user can use it with peace of mind.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、本実施の形態によって、本発明が限定されるものではない。  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(実施の形態1)
図1は本実施の形態における誘導加熱調理器の断面図。
(Embodiment 1)
FIG. 1 is a cross-sectional view of an induction heating cooker in the present embodiment.

図2は本実施の形態における誘導加熱調理器の内部の構成を示す斜視概略図。  FIG. 2 is a schematic perspective view showing an internal configuration of the induction heating cooker in the present embodiment.

図3は本実施の形態における誘導加熱調理器のノイズフィルタ取り付け部詳細図。  FIG. 3 is a detailed view of the noise filter mounting portion of the induction heating cooker in the present embodiment.

図4は本実施の形態における誘導加熱調理器のブロック図。  FIG. 4 is a block diagram of the induction heating cooker in the present embodiment.

図に示すように、金属で形成された誘導加熱調理器の本体外郭11は、キッチン12の上面開口部から挿入設置されている。本体外郭11上面には、本体外郭11の上面を覆うとともに本体外郭11をキッチンの上面開口部から挿入設置したときに本体外郭11を支えるトップユニット部13、トップユニット部13を構成する鍋などを載せる結晶化ガラスで形成したトッププレート14とトッププレート下面を支える金属製のアンダーフレーム15、本体外郭11内のトップユニット部13の下には、左側に左加熱コイル16a、右側に右加熱コイル16bが置かれている。また本体の左側で、左加熱コイル16aの下方にロースター17が置かれている。ロースター17の右側で、右加熱コイル16bの下方には、基板ベース18で保持した、左加熱コイル16aと右加熱コイル16bに電流を供給し駆動制御する回路基板19が配置されている。回路基板19には、整流回路20とインバータ回路21とスイッチング電源22と制御回路23が設けられている。また、回路基板19の前側に近接して本体外郭11内に冷却風を送り込む冷却ファン24を、冷却ファン24の前側に加熱操作設定を行う操作部25を配置している。回路基板19後方の外郭後側面に電源経路接続部基板ホルダ26に取り付けたられた電源経路接続部基板27を設け、電源経路接続部基板27の下方の外郭後側面開口穴より挿入された電源コード28の電源コード電源接続部29を電源経路接続部基板27の下側の端子台に端子ねじにより接続している。また、電源経路接続部基板27の上方にはノイズフィルタ基板ホルダ30に取り付けられたノイズフィルタ31が、電源経路接続部基板27と同様、外郭後側面に取り付けられ、電源経路接続部基板27から出力された電流が、ノイズフィルタ31を通過して制御回路23に供給される。また、電源コードアース接続部32は、電源経路接続部基板27の下方で外郭後側面に締め付けて接続している。電源経路接続部基板27、電源コード電源接続部29および電源コードアース接続部30の前面と左右を囲うように金属製の電源経路接続部カバー33を形成しており、電源経路接続部カバー33は外郭後
側面に当接するようにセットされ、電源経路接続部カバー33の一部に設けたカバーねじ締め部34は本体外郭11後側面とアンダーフレーム15とで挟んでねじで共締めをする構成となっており、アンダーフレーム15で電源経路接続部基板27上部を覆っている。電源コード28は、電源接続線2本とアース線1本が束になった3線一体式の構成となっている。また、電源経路接続部カバー33には、任意のノイズ遮蔽効果が損なわれない範囲で、カバー通気穴35が設けられている。またさらに、基板ベース18の下面に、冷却ファン24から電源経路接続部カバー下方の開口部33aに通気経路を構成するように外郭底と基板ベース18との間に空間を設けている。さらに、ロースター17と、基板ベース18、電源経路接続部カバー33、冷却ファン24および操作部25との間に金属製の中仕切り板36を配している。また、本体外郭11後方の上部トップユニット部13に冷却風の出口となる排気口37を設けている。
As shown in the figure, themain body outline 11 of the induction heating cooker made of metal is inserted and installed from the upper surface opening of thekitchen 12. On the upper surface of the main bodyouter shell 11, atop unit portion 13 that covers the upper surface of the main bodyouter shell 11 and supports the main bodyouter shell 11 when the main bodyouter shell 11 is inserted and installed from the upper surface opening of the kitchen, a pan that constitutes thetop unit portion 13, and the like. Atop plate 14 made of crystallized glass to be placed, ametal underframe 15 that supports the lower surface of the top plate, atop heating unit 16a on the left side, and aright heating coil 16b on the right side below thetop unit 13 in the main bodyouter shell 11. Is placed. Further, on the left side of the main body, aroaster 17 is placed below theleft heating coil 16a. On the right side of theroaster 17, below theright heating coil 16 b, acircuit board 19 is provided that supplies current to theleft heating coil 16 a and theright heating coil 16 b and is driven and controlled, which are held by thesubstrate base 18. Thecircuit board 19 is provided with a rectifier circuit 20, an inverter circuit 21, aswitching power supply 22, and acontrol circuit 23. In addition, acooling fan 24 that sends cooling air into themain body shell 11 in the vicinity of the front side of thecircuit board 19 is disposed, and anoperation unit 25 that performs heating operation setting is disposed on the front side of thecooling fan 24. A power supplypath connection board 27 attached to a power supply pathconnection board holder 26 is provided on the outer rear side surface behind thecircuit board 19, and a power cord inserted through an opening in the outer rear side face below the power supplypath connection board 27. 28 power cord powersupply connection portions 29 are connected to the lower terminal block of the power supply pathconnection portion substrate 27 by terminal screws. Further, thenoise filter 31 attached to the noisefilter substrate holder 30 is attached to the outer rear side surface of the powerpath connection board 27 and is output from the powerpath connection board 27 above the powerpath connection board 27. The generated current passes through thenoise filter 31 and is supplied to thecontrol circuit 23. Further, the power cordground connection portion 32 is connected to the outer rear side surface of the power pathconnection portion board 27 by being tightened to the lower side. A metal power path connectingpart cover 33 is formed so as to surround the front and left sides of the power path connectingpart substrate 27, the power cord powersource connecting part 29, and the power cordground connecting part 30, and the power path connectingpart cover 33 is The coverscrew tightening portion 34 that is set so as to contact the rear side surface of the outer shell and is provided on a part of the power pathconnection portion cover 33 is sandwiched between the rear side surface of the main bodyouter shell 11 and theunderframe 15 and is tightened together with screws. Theunderframe 15 covers the upper part of the power supplypath connection board 27. Thepower cord 28 has a three-wire integrated configuration in which two power connection wires and one ground wire are bundled. Further, the power supply pathconnection portion cover 33 is provided with acover vent hole 35 as long as an arbitrary noise shielding effect is not impaired. Furthermore, a space is provided on the lower surface of thesubstrate base 18 between the outer bottom and thesubstrate base 18 so as to form a ventilation path from thecooling fan 24 to the opening 33a below the power supply path connection portion cover. Further, ametal partition plate 36 is disposed between theroaster 17, thesubstrate base 18, the power supply pathconnection portion cover 33, thecooling fan 24, and theoperation portion 25. Further, anexhaust port 37 serving as an outlet for cooling air is provided in the uppertop unit portion 13 at the rear of themain body shell 11.

操作部25は、操作部外方を形成する操作部ケース38に内蔵され、操作部25が開閉により操作部ケース38内に収納されたり、操作部ケース38外方に露出されたりする形態となっている。操作部25は、最上部に配した操作用押しボタン部39と、その操作用押しボタン部39下方に設けたボタンの操作を検知し回路基板19へ信号を伝送するスイッチを有する操作基板40と、操作基板を支持する操作基板ベース41と、操作基板ベース41を左右下方にて支持する左右支持部42と、操作基板ベースと左右支持部の前面を塞ぐ前面板43とで構成している。また、操作部25上面の奥の略中央に幅が約50mmの操作部25上面凸部を設け、また操作部ケース38の上面の略中央に幅約50mmの下向き凸部を設けている。左右支持部42の左右の下部とそれに対向した操作部ケース38の側部にシャフト44を通し、この部分を基点に開閉回動することにより、操作部25が操作部25ケース内に収納されたり、操作部25ケース外方に露出されたりする。この際、操作部25の上面の奥に設けた操作部25上面凸部は、操作部ケース38の内面と隙間をもって回動する。操作部25が開いたときには、操作部25上面凸部が、操作部ケース38の上面に設けた下向き凸部に当接し、回動が止まる。  Theoperation unit 25 is built in anoperation unit case 38 that forms the outside of the operation unit, and theoperation unit 25 is housed in theoperation unit case 38 by opening and closing, or is exposed to the outside of theoperation unit case 38. ing. Theoperation unit 25 includes an operationpush button unit 39 disposed at the top, and anoperation board 40 having a switch for detecting an operation of a button provided below the operationpush button unit 39 and transmitting a signal to thecircuit board 19. Theoperation board base 41 that supports the operation board, the left andright support portions 42 that support theoperation board base 41 in the lower left and right directions, and the front plate 43 that covers the operation board base and the front surfaces of the left and right support portions. In addition, a convex portion on the upper surface of theoperation portion 25 having a width of about 50 mm is provided at a substantial center at the back of the upper surface of theoperation portion 25, and a downward convex portion having a width of about 50 mm is provided at a substantial center of the upper surface of theoperation portion case 38. By passing theshaft 44 through the left and right lower parts of the left andright support part 42 and the side part of theoperation part case 38 opposite to the left andright support parts 42, theoperation part 25 is accommodated in theoperation part 25 case. Theoperation unit 25 is exposed outside the case. At this time, the convex portion on the upper surface of theoperation unit 25 provided at the back of the upper surface of theoperation unit 25 rotates with a gap from the inner surface of theoperation unit case 38. When theoperation part 25 is opened, the upper surface convex part of theoperation part 25 comes into contact with the downward convex part provided on the upper surface of theoperation part case 38, and the rotation stops.

操作部25後方の操作部ケース38に設けた操作部ケース開口穴45を設けており、操作部ケース38と操作部25の間に有る約4mmの隙間と連続した通気経路を構成している。  An operation unitcase opening hole 45 provided in theoperation unit case 38 behind theoperation unit 25 is provided, and a continuous ventilation path is formed with a gap of about 4 mm between theoperation unit case 38 and theoperation unit 25.

冷却ファン24は操作部ケース38の奥に位置し、冷却ファン24の奥に回路基板19が配されている。ファン吸気口46は操作部ケース38側で排気口は回路基板側となる。  The coolingfan 24 is located in the back of theoperation unit case 38, and thecircuit board 19 is disposed in the back of the coolingfan 24. Thefan intake port 46 is on theoperation unit case 38 side, and the exhaust port is on the circuit board side.

次に、冷却ファン24の冷却風の流れについて説明する。図1および図2に冷却風の流れを矢印で記載する。  Next, the flow of cooling air from the coolingfan 24 will be described. The flow of cooling air is indicated by arrows in FIGS.

まず、冷却風は操作部ケース38と操作部25の間に有る約4mmの隙間から外気が入り、操作部後方の操作部ケース38に設けた操作部ケース開口穴45を通って、ファン吸気口46へ吸い込まれる。吸い込まれた空気は、大きく4経路に分けられて排出される。  First, the cooling air enters from the gap of about 4 mm between theoperation unit case 38 and theoperation unit 25, passes through the operation unitcase opening hole 45 provided in theoperation unit case 38 behind the operation unit, and enters the fan intake port. It is sucked into 46. The sucked air is divided into four paths and discharged.

1経路目は、回路基板19と外郭底の空間で形成された電源経路接続部カバー下方開口部33aに通じる通気経路に噴出され、通気経路を通って電源経路接続部カバー下方開口部33aに吹き込んだ冷却風は、電源経路接続部カバー33と外郭後側面とで形成された電源経路接続部基板27を内部に有する通気経路を通って、電源経路接続部カバー上方開口部33bから排出され、さらに電源経路接続部カバー上方開口部33bと重ならないように設けられたトップユニット部13後方の排気口37へと流れ外へ排出される経路。  The first path is blown into the ventilation path that leads to the power path connection section coverlower opening 33a formed in the space between thecircuit board 19 and the outer bottom, and blows into the power path connection section coverlower opening 33a through the ventilation path. The cooling air is discharged from the power path connection part coverupper opening 33b through the ventilation path having the power pathconnection part substrate 27 formed by the power pathconnection part cover 33 and the outer rear side surface, and further, A path that is discharged out of the flow to theexhaust port 37 at the rear of thetop unit part 13 provided so as not to overlap the power path connecting part coverupper opening 33b.

2経路目は、冷却ファン24により基板ベース18に取り付けられているスイッチング素子やダイオードブリッジといった発熱部品を有する回路基板19へ噴出され、その後、
後方の電源経路接続部カバー33のノイズ遮蔽効果が損なわれない範囲であけられたカバー通気穴35へ流入し、電源経路接続部カバー上方開口部33bまたは更に設けた別のカバー通気穴から排出され、さらに本体トップユニット部13後方に設けられた排気口37へと流れ外へ排出される経路。
The second path is ejected to thecircuit board 19 having a heat generating component such as a switching element and a diode bridge attached to theboard base 18 by the coolingfan 24, and then
It flows into thecover vent hole 35 which is opened as long as the noise shielding effect of the rear power path connectingportion cover 33 is not impaired, and is discharged from the power path connecting portion coverupper opening 33b or another cover vent hole provided further. Furthermore, the path | route discharged | emitted out of the flow to theexhaust port 37 provided in the main bodytop unit part 13 back.

3経路目は、冷却ファン24により右加熱コイル16bを経由しながら本体トップユニット部13後方に設けられた排気口37へと流れ外へ排出される経路。  The third path is a path that is discharged out of the flow to theexhaust port 37 provided at the rear of the mainbody top unit 13 while passing through theright heating coil 16b by the coolingfan 24.

4経路目は、冷却ファン24により左加熱コイル16aを経由しながら本体トップユニット部13後方に設けられた排気口37へと流れ外へ排出される経路である。  The fourth path is a path that is discharged out of the flow to theexhaust port 37 provided at the rear of the mainbody top unit 13 while passing through theleft heating coil 16a by the coolingfan 24.

本構成の1経路目の、回路基板19と外郭底の空間で形成された、ファンからカバー下方の開口部33aに通じる通気経路へ噴出され、通気経路を通ってカバー下方の開口部下穴に吹き込み、電源経路接続部カバー33と外郭後側面で形成された電源経路接続部基板27を内部に有する通気経路を通って、カバー上方開口部33bから排出される通気経路構成により、電源経路接続部基板27を冷却することができる。  The first path of this configuration, which is formed in the space between thecircuit board 19 and the outer bottom of the circuit, is blown from the fan to the ventilation path leading to theopening 33a below the cover, and blown through the ventilation path into the lower hole of the opening below the cover. The power path connecting portion board is configured to be discharged from the coverupper opening 33b through the vent path having the power path connectingportion cover 33 and the power path connectingportion substrate 27 formed on the rear side surface of the outer side. 27 can be cooled.

また、2経路目の、冷却ファン24により基板ベース18に取り付けられているスイッチング素子やダイオードブリッジといった発熱部品を有する回路基板19へ噴出され、その後、後方の電源経路接続部カバー33のノイズ遮蔽効果が損なわれない範囲であけられたカバー通気穴35へ流入し、電源経路接続部カバー上方の開口部33bまたは更に設けた別のカバー通気穴から排出され、さらに本体トップユニット13後方に設けられた排気口37へと流れ外へ排出される通気経路構成により、特に電源経路接続部基板27の上方の1経路目で冷却効果が得られない箇所などを局部的に冷却することができ、1経路目とあわせて、電源経路接続部27およびノイズフィルタ31の冷却向上に効果を発揮することができる。また、この際、中仕切板36により、加熱時のロースター17からの熱影響を遮蔽し、本体右側の冷却経路に対する熱影響を低減することができ、電源経路接続部基板27およびノイズフィルタ31の冷却性能向上を行うことができる。  Further, the second path is ejected to thecircuit board 19 having a heat generating component such as a switching element and a diode bridge attached to theboard base 18 by the coolingfan 24, and then the noise shielding effect of the rear power path connectingportion cover 33 is obtained. It flows into thecover vent hole 35 that is opened as long as it is not damaged, is discharged from theopening 33b above the power path connection portion cover, or another cover vent hole provided further, and is further provided behind the mainbody top unit 13 With the ventilation path configuration that discharges to theexhaust port 37 and out of the flow, it is possible to locally cool a portion where a cooling effect cannot be obtained particularly in the first path above the powerpath connection board 27. Along with the eyes, the effect of improving the cooling of the powerpath connecting portion 27 and thenoise filter 31 can be exhibited. Further, at this time, the thermal effect from theroaster 17 at the time of heating can be shielded by thepartition plate 36, and the thermal effect on the cooling path on the right side of the main body can be reduced, and the powerpath connection board 27 and thenoise filter 31 can be reduced. The cooling performance can be improved.

次に、回路接続および回路動作について説明する。図4にブロック図を示す。  Next, circuit connection and circuit operation will be described. FIG. 4 shows a block diagram.

商用電源と機器を接続するため電源コード28の電源コード電源接続部29が電源経路接続部基板27に接続される、そして電源経路接続部基板27と回路基板19の整流回路20がノイズフィルタを介して接続され、回路基板19内で整流回路20とインバータ回路21が接続されており、インバータ回路21に加熱コイル16が接続されている。また回路基板19内でスイッチング電源22と制御回路23が接続され、制御回路23と操作部25が接続されている。  In order to connect the commercial power supply and the device, the power cordpower connection portion 29 of thepower cord 28 is connected to the power supply pathconnection portion board 27, and the rectifier circuit 20 of the power supply pathconnection portion substrate 27 and thecircuit board 19 passes through the noise filter. The rectifier circuit 20 and the inverter circuit 21 are connected in thecircuit board 19, and theheating coil 16 is connected to the inverter circuit 21. Further, the switchingpower supply 22 and thecontrol circuit 23 are connected in thecircuit board 19, and thecontrol circuit 23 and theoperation unit 25 are connected.

ノイズフィルタ31は発生するスイッチングノイズが商用電源の電源ラインに漏洩することを防止する。  Thenoise filter 31 prevents generated switching noise from leaking to the power line of the commercial power source.

整流回路20は商用電源の交流を直流に変換する。インバータ回路21はスイッチング素子を数十kHzでスイッチングし加熱コイル16に高周波電流を発生させる。加熱コイルに高周波電流を発生させることで調理鍋等の負荷底部に誘導電流が発生し負荷が加熱される。  The rectifier circuit 20 converts the alternating current of the commercial power source into a direct current. The inverter circuit 21 switches the switching element at several tens of kHz and generates a high frequency current in theheating coil 16. By generating a high-frequency current in the heating coil, an induction current is generated at the bottom of the load such as a cooking pot, and the load is heated.

スイッチング電源22はスイッチング素子を数百kHz程度でスイッチングすることで商用電源電圧から制御回路23に供給する直流電圧をつくる。制御回路は操作部25からの情報とインバータ回路21からの情報に基づき、誘導加熱調理器の加熱を制御する。使用者は操作部25を操作することで調理時の火力調整を行う。  The switchingpower supply 22 generates a DC voltage supplied from the commercial power supply voltage to thecontrol circuit 23 by switching the switching element at about several hundred kHz. The control circuit controls the heating of the induction heating cooker based on the information from theoperation unit 25 and the information from the inverter circuit 21. The user adjusts the heating power during cooking by operating theoperation unit 25.

ノイズフィルタ31は発生するスイッチングノイズが商用電源の電源ラインに漏洩することを防止するためのものであるが、ノイズフィルタ31は他の部品が発する漏洩磁束の影響によって、ノイズ遮断性能が低下してしまう。  Thenoise filter 31 is for preventing the generated switching noise from leaking into the power supply line of the commercial power supply. However, thenoise filter 31 has a noise blocking performance that is deteriorated by the influence of leakage magnetic flux generated by other components. End up.

そこで本構成では、電源コード電源接続部29および電源コードアース接続部32の前面と左右を囲うように金属製の電源経路接続部カバー33を形成しており、電源経路接続部カバー33は外郭後側面に当接するようにセットされ、電源経路接続部カバー33の一部に設けた電源経路接続部カバーねじ締め部34は本体外郭後側面とアンダーフレーム15とで挟んでねじで共締めをする構成となっており、接地電位部分としてのアースに接続されているため、加熱コイル16で発生する漏洩磁束やスイッチング電源から発せられる電磁ノイズは本体外郭11および、電源経路接続部カバー33によってシールドされ接地電位部分としてのアースに吸収されるため、ノイズ遮蔽性能を向上することができる。また、ノイズフィルタ31は本体外郭最後方部に位置しており、スイッチング電源22や加熱コイル16から距離も遠くとれ、他の部品が発する漏洩磁束のノイズフィルタ31への影響を低減することができる。またさらに電源経路接続部の下方に電源コード28の本体挿入口を設けることで、スイッチング電源22や加熱コイル16から距離が遠くとれ、他の部品が発する漏洩磁束の電源経路接続部27から商用電源ラインである電源コード28への影響を低減することができる。また、電源経路接続部27下方の外郭後側面開口穴より挿入された電源コード28の電源コード電源接続部29を電源経路接続部基板27の下側の端子台に端子ねじにより接続しているため、本体内に電源コード28が挿入されて、基板に接続されるまでの電源コード28のリードの長さが短くでき、他の部品が発する漏洩磁束から影響されるリードの長さが短いため、電源経路接続部27から商用電源ラインである電源コードへの影響を低減することができる。電源コードアース接続部32は、電源経路接続部基板27の下方で外郭後側面に締め付けて接続しているので、これもリードの長さが短くでき、他の部品が発する漏洩磁束から影響されるリードの長さが短いため、アース線への影響を低減することができ、電源経路接続部27から商用電源ラインである電源コード28への影響を低減することができる。また金属製のアンダーフレーム15で電源経路接続部基板27上部を覆う構成とすることにより、加熱コイル16で発生する漏洩磁束はアンダーフレーム15により遮蔽され、電源経路接続部27へのノイズ遮蔽性能を向上することができる。またさらに、電源経路接続部カバー33の一部を金属製の本体外郭にねじにより締め付ける構成としたことにより、確実に電源経路接続部カバー33がねじ締めによりアースにつながり、他の部品が発する漏洩磁束が接地電位部分としてのアースに吸収されるため、ノイズ遮蔽性能を向上することができる。  Therefore, in this configuration, a metal power path connectingportion cover 33 is formed so as to surround the front and left and right sides of the power cordpower connecting portion 29 and the power cordground connecting portion 32. The power path connection portion coverscrew tightening portion 34 set so as to contact the side surface and provided in a part of the power pathconnection portion cover 33 is sandwiched between the main body outer rear side surface and theunderframe 15 and is tightened together with screws. Since it is connected to the ground as the ground potential portion, the leakage magnetic flux generated in theheating coil 16 and the electromagnetic noise generated from the switching power supply are shielded by the main bodyouter shell 11 and the power supply pathconnection portion cover 33 and grounded. Since it is absorbed by the ground as the potential portion, the noise shielding performance can be improved. In addition, thenoise filter 31 is located at the rearmost part of the outer body of the main body and can be far away from the switchingpower supply 22 and theheating coil 16 to reduce the influence of leakage magnetic flux generated by other components on thenoise filter 31. . Furthermore, by providing a main body insertion port for thepower cord 28 below the power path connecting portion, thepower supply cord 28 can be separated from the switchingpower source 22 and theheating coil 16, and the commercial power source from the powerpath connecting portion 27 for leakage magnetic flux generated by other components. The influence on thepower cord 28 that is a line can be reduced. Further, since the power cordpower connection portion 29 of thepower cord 28 inserted from the opening on the outer rear side surface below the powerpath connection portion 27 is connected to the terminal block on the lower side of the power pathconnection portion substrate 27 by terminal screws. Since the length of the lead of thepower cord 28 until thepower cord 28 is inserted into the main body and connected to the board can be shortened, and the length of the lead affected by the leakage magnetic flux generated by other components is short, It is possible to reduce the influence of the power supplypath connection unit 27 on the power cord that is a commercial power supply line. Since the power cordground connection portion 32 is connected to the outer rear side surface of the power supply pathconnection portion substrate 27 by being tightened, the length of the lead can be shortened, and it is affected by the leakage magnetic flux generated by other components. Since the length of the lead is short, the influence on the ground wire can be reduced, and the influence on thepower cord 28 which is a commercial power line from the powerpath connecting portion 27 can be reduced. In addition, since themetal underframe 15 covers the upper portion of the powerpath connection board 27, leakage magnetic flux generated by theheating coil 16 is shielded by theunderframe 15, and noise shielding performance to the powerpath connection section 27 is improved. Can be improved. In addition, since a part of the power path connectingportion cover 33 is tightened to the metal main body with screws, the power path connectingportion cover 33 is securely connected to the ground by screw tightening and leaks from other parts. Since the magnetic flux is absorbed by the earth as the ground potential portion, the noise shielding performance can be improved.

以上のように本実施の形態において、電源経路接続部基板27および電源コード電源接続部29の前面と左右を囲う金属により形成された電源経路接続部カバー33により、加熱コイル16から電源経路接続部基板27への漏洩磁束やスイッチング電源22から発せられる電磁ノイズからのノイズ遮蔽性能を向上することができる。また、調理器本体外の空気を吸気する冷却ファン24により送風された冷却風を電源経路接続部基板27内に通気し、電源経路接続部27の上方のカバー外へ排気する通気経路を設け、電源経路接続部カバー上方開口部33bとトップユニット13後方の排気口37が上方から見て重ならないように配置することで、電源経路接続部基板27の構成部品を冷却することができるとともに、使用中に液体が零れた際にも、電源経路接続部27に液体が侵入し、ショートの危険を防ぐことができる。  As described above, in the present embodiment, the powerpath connection section 33 is formed from theheating coil 16 by the power path connection section cover 33 formed of a metal surrounding the front and left and right sides of the power pathconnection section substrate 27 and the power cordpower connection section 29. Noise shielding performance from magnetic flux leaked to thesubstrate 27 and electromagnetic noise generated from the switchingpower supply 22 can be improved. In addition, a ventilation path for ventilating the cooling air blown by the coolingfan 24 that sucks air outside the cooker main body into the powerpath connection board 27 and exhausting it outside the cover above the powerpath connection section 27 is provided. By disposing the power path connection portion coverupper opening 33b and theexhaust port 37 behind thetop unit 13 so as not to overlap each other when viewed from above, the components of the power pathconnection portion substrate 27 can be cooled and used. Even when the liquid spills inside, the liquid can enter the power supplypath connecting portion 27 and the risk of a short circuit can be prevented.

(実施の形態2)
さらに、電源経路接続部基板27は、電源コード28から供給される商用電源を回路基板19に供給するために、電源コード電源接続部29を接続する端子台を備えているが、チョークコイル、コンデンサをさらに有し、ノイズフィルタ31を兼ねているものでも良
い。特にコイルは自己発熱が大きい冷却対策が必要な部品であり、部品の配置によっては、近傍のコンデンサの温度も上昇させてしまうこともあるため、電源経路接続部カバー33がコイル、コンデンサ等のノイズフィルタ31を覆うことでノイズフィルタの冷却性能がさらに向上する。
(Embodiment 2)
Further, the powerpath connection board 27 includes a terminal block for connecting the power cordpower connection section 29 in order to supply commercial power supplied from thepower cord 28 to thecircuit board 19. And may also serve as thenoise filter 31. In particular, the coil is a component that has a large amount of self-heating and requires cooling measures. Depending on the arrangement of the component, the temperature of the nearby capacitor may also increase. Covering thefilter 31 further improves the cooling performance of the noise filter.

(実施の形態3)
さらに、図5に示すように回路基板19と本体外郭11底面の間に底面と略垂直な側壁47を設け、冷却ファン24からの冷却風を回路基板19と本体外郭11底面と側壁47に囲まれた経路に流すことにより、電源経路接続部カバー33内に効率よく流すことができ、冷却性能を向上することができる。
(Embodiment 3)
Further, as shown in FIG. 5, aside wall 47 that is substantially perpendicular to the bottom surface is provided between thecircuit board 19 and the bottom surface of themain body outline 11, and the cooling air from the coolingfan 24 is surrounded by thecircuit board 19, the bottom surface of themain body outline 11, and theside wall 47. By flowing in the route, it is possible to efficiently flow in the power supply pathconnection portion cover 33, and the cooling performance can be improved.

(実施の形態4)
さらに、回路基板19と本体外郭11底面の間に底面と略平行な仕切板48を設け、冷却ファン24からの冷却風を仕切板48と本体外郭11底面との間に流すことにより、冷却風を電源経路接続部カバー33内に効率よく流すことができ、冷却性能を向上することができる。
(Embodiment 4)
Further, apartition plate 48 substantially parallel to the bottom surface is provided between thecircuit board 19 and the bottom surface of the main bodyouter shell 11, and the cooling air from the coolingfan 24 is caused to flow between thepartition plate 48 and the bottom surface of the main bodyouter shell 11, thereby cooling air. Can be efficiently flowed into the power path connectingportion cover 33, and the cooling performance can be improved.

(実施の形態5)
さらに、図7に示すように仕切板48と本体外郭11底面に当接する略垂直な側壁47を設け冷却風を仕切板48と本体外郭11底面と側壁47に囲まれた経路に流すことにより、冷却風を電源経路接続部カバー33内に効率よく流すことができ、冷却性能を向上することができる。
(Embodiment 5)
Further, as shown in FIG. 7, by providing a substantiallyvertical side wall 47 that abuts against thepartition plate 48 and the bottom surface of the main bodyouter shell 11 and flowing cooling air through a path surrounded by thepartition plate 48, the bottom surface of the main bodyouter shell 11 and theside wall 47, The cooling air can be efficiently flowed into the power supply pathconnection portion cover 33, and the cooling performance can be improved.

(実施の形態6)
さらに、図8に示すように仕切板48と本体外郭11底面と側壁47との間に空間49をさらに設け、図に矢印で記載した通風経路50と分離することにより、排気口37から侵入した液体は図に矢印で記載した流入経路51を通り空間49内に流れ落ちるため、通風経路50に液体が侵入し液体が冷却ファン24の風に乗って電源経路接続部基板27に付着することがなく、使用者が調理中に排気口37に水やスープ等の液体を零してしまった場合においてもショートの危険がなく、安心して使用することができる。
(Embodiment 6)
Further, as shown in FIG. 8, aspace 49 is further provided between thepartition plate 48, the bottom surface of the main bodyouter shell 11 and theside wall 47, and is separated from theventilation path 50 indicated by an arrow in the figure, thereby entering from theexhaust port 37. Since the liquid flows down into thespace 49 through theinflow path 51 indicated by an arrow in the figure, the liquid does not enter theventilation path 50 and the liquid rides on the wind of the coolingfan 24 and does not adhere to the power supply pathconnection portion substrate 27. Even when the user spills liquid such as water or soup into theexhaust port 37 during cooking, there is no danger of short-circuiting, and the user can use it with peace of mind.

以上のように、本発明にかかる誘導加熱調理器は、上下に開口部を有し、電源経路接続部を覆う金属製のダクト上方の開口部と、排気口を機器上方から見て重ならないように設けることで、機器後方に設けられた電源経路接続部を排気口からの水の浸入を防ぎつつ、冷却性能およびノイズ遮蔽性能を向上することができるので、電源経路接続部と排気口とを有する業務用あるいは家庭用の加熱調理機器等の用途にも適用できる。  As described above, the induction heating cooker according to the present invention has openings on the upper and lower sides so that the opening above the metal duct covering the power supply path connection portion and the exhaust port do not overlap when viewed from above the device. Since the cooling performance and noise shielding performance can be improved while preventing the intrusion of water from the exhaust port, the power path connection portion and the exhaust port are provided. The present invention can also be applied to uses such as commercial or household cooking equipment.

11 本体外郭(外郭)
12 キッチン
13 トップユニット部
14 トッププレート
15 アンダーフレーム
16a 左加熱コイル(加熱コイル)
16b 右加熱コイル(加熱コイル)
17 ロースター
18 基板ベース
19 回路基板
24 冷却ファン(ファン)
25 操作部
26 電源経路接続部基板ホルダ
27 電源経路接続部基板(電源経路接続部)
28 電源コード
29 電源コード電源接続部
30 ノイズフィルタ基板ホルダ
31 ノイズフィルタ
32 電源コードアース接続部
33 電源経路接続部カバー(金属カバー、ダクト)
33a 電源経路接続部カバー下方開口部(下方の開口部)
33b 電源経路接続部カバー上方開口部(上方の開口部)
34 カバーねじ締め部
35 カバー通気穴
36 中仕切板
37 排気口
38 操作部ケース
39 操作用押しボタン部
40 操作基板
41 操作基板ベース
42 左右支持部
43 前面板
44 シャフト
45 操作部ケース開口穴(前方に設けた開口部)
46 ファン吸気口
47 側壁
48 仕切板
49 空間
50 通風経路
51 流入経路
11 Body shell (outer shell)
12Kitchen 13Top unit 14Top plate 15 Underframe 16a Left heating coil (heating coil)
16b Right heating coil (heating coil)
17Roaster 18Board base 19Circuit board 24 Cooling fan (fan)
25Operation part 26 Power supply path connectionpart board holder 27 Power supply path connection part board (power supply path connection part)
28Power cord 29 Powercord power connection 30 Noisefilter board holder 31Noise filter 32 Powercord ground connection 33 Power path connection cover (metal cover, duct)
33a Power path connection part cover lower opening (lower opening)
33b Power path connection portion cover upper opening (upper opening)
34 Coverscrew tightening part 35Cover ventilation hole 36Middle partition plate 37Exhaust port 38Operation part case 39 Operationpush button part 40Operation board 41Operation board base 42 Left and right support part 43Front plate 44Shaft 45 Operation part case opening hole (front Opening provided in
46Fan inlet 47Side wall 48Partition plate 49Space 50Ventilation path 51 Inflow path

Claims (6)

Translated fromJapanese
本体を構成する外郭と、
本体上面に設けられた被加熱物を戴置するためのトッププレートと、
前記トッププレートの下方に設けられた前記被加熱物を誘導加熱する加熱コイルと、
本体前方に設けた開口部と、
前記開口部を通して本体外の空気を吸気するファンと、
前記ファンより後方へ送風された冷却風の下流側に設けられ前記加熱コイルの出力を制御する回路基板と、
前記外郭後方の上面に設けられた前記冷却風の出口となる排気口と、
前記外郭後部を貫通して商用電源を供給する電源コードと、
前記電源コードと前記回路基板に導く電源経路とを接続する電源経路接続部と、
前記外郭後側面に取り付けられ、前記電源経路接続部を覆うようにダクトを形成する金属カバーと
を備え、
前記ダクトは下方と上面に開口部を有し、前記上面の開口部は上方から見て前記排気口と重ならないように前記排気口の近傍で、かつ前記排気口から左右方向にずらした位置に設けられ、前記冷却風が前記下方の開口部から前記上面の開口部を通り、前記上面の開口部から前記排気口に通ずるように構成したことを特徴とする誘導加熱調理器。
An outer shell constituting the main body,
A top plate for placing an object to be heated provided on the upper surface of the main body;
A heating coil for inductively heating the object to be heated provided below the top plate;
An opening provided in front of the main body,
A fan that sucks air outside the main body through the opening;
A circuit board provided on the downstream side of the cooling air blown rearward from the fan to control the output of the heating coil;
An exhaust port serving as an outlet for the cooling air provided on the upper surface behind the outer shell;
A power cord for supplying commercial power through the outer rear portion;
A power path connecting portion for connecting the power cord and a power path leading to the circuit board;
A metal cover that is attached to therear side surface of the outer shell and forms a duct so as to cover the power path connecting portion;
With
Position the duct has an opening downward andan upper surface, an opening portion of theuppersurface,in the vicinity of the exhaust port so as not to overlap with the exhaust port as viewed fromabove, and which is shifted in the lateral direction from the exhaust port provided, the cooling wind passes through the opening in the top surface from the opening of the lower, the induction cooking device, characterized in that configuredas leading to the exhaust port from the opening ofthe top surface.
前記ダクトは前記電源経路接続部と前記回路基板の間に設けられたノイズフィルタをさらに覆うことを特徴とした請求項1に記載の誘導加熱調理器。The duct induction heating cooker according to claim 1, characterized in that cover more noise filter provided betweenthe circuit board andthe power supply path connecting unit.前記回路基板と前記外郭底面の間に前記底面と略垂直な側壁を設け、前記ファンからの冷却風を前記回路基板と前記外郭底面と前記側壁に囲まれた経路に流すことを特徴とする請求項1または2に記載の誘導加熱調理器。Claims, characterized inthat the said bottom surface and substantially vertical side walls between the circuit board andthe outer bottom surface is provided to flow the cooling air fromthe fan to the path surrounded by the side walls and the outer bottom surface and the circuit board Item 3. The induction heating cooker according to item 1 or 2.前記回路基板と前記外郭底面の間に前記底面と略平行な仕切板を設け、前記ファンからの冷却風を前記仕切板と前記外郭底面の間に流すことを特徴とする請求項1または2に記載の誘導加熱調理器。Said bottom surface substantially parallel to the partition plate provided betweenthe outer bottom surface andthe circuit board, the cooling air fromthe fan to claim 1 or 2, characterized in that flow between the outer bottom and the partition plate The induction heating cooker described.前記仕切板と前記外郭底面に当接する略垂直な側壁を設け冷却風を前記仕切板と前記外郭底面と前記側壁に囲まれた経路に流すことを特徴とした請求項4に記載の誘導加熱調理器。Induction cooking according to claim 4 characterized in that flow toroute the surrounded bythe outer bottom surface and the partition plate substantially cooling air provided vertical side walls abutting on the side walls and the outer bottom surface and the partition plate vessel.前記仕切板と前記外郭底面と側壁との間に空間を構成し、前記空間は排気口と連結して経路を構成することを特徴とした請求項5に記載の誘導加熱調理器。Induction heating cooker according to claim 5 constitute a space, the space that was characterized in that it constitutes a path connected to the air outlet betweenthe outer bottom and side walls andthe partition plate.
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* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
KR20180025010A (en)*2016-08-312018-03-08엘지전자 주식회사A combination cooker including induction heater

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JP3317284B2 (en)*1999-09-072002-08-26松下電器産業株式会社 Built-in induction heating cooker
JP2004063121A (en)*2002-07-252004-02-26Matsushita Electric Ind Co Ltd High frequency heating equipment
JP3786117B2 (en)*2004-01-292006-06-14松下電器産業株式会社 Induction heating cooker
JP4492365B2 (en)*2005-01-282010-06-30パナソニック株式会社 Cooker

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* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
KR20180025010A (en)*2016-08-312018-03-08엘지전자 주식회사A combination cooker including induction heater
KR101931412B1 (en)*2016-08-312018-12-20엘지전자 주식회사A combination cooker including induction heater

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