技术领域technical field
本发明涉及一种发光装置，且特别涉及一种具有散热鳍片的发光装置。The invention relates to a light emitting device, and in particular to a light emitting device with cooling fins.
背景技术Background technique
传统的发光装置的发光元件在发光的同时会产生热量，热量通常藉由发光装置的导热外壳对流至外界。The light-emitting element of the traditional light-emitting device generates heat while emitting light, and the heat is usually convected to the outside through the heat-conducting shell of the light-emitting device.
然而，导热外壳通常具有复杂结构，因此需要以压铸工法成形。如此，完成导热外壳的整个设计过程无论在设计、制造上都较复杂，且重量重及所耗成本不低。However, the heat-conducting housing usually has a complex structure, so it needs to be formed by die-casting. In this way, the entire design process of the heat conduction shell is complicated in terms of design and manufacture, and the weight is heavy and the cost is not low.
发明内容Contents of the invention
本发明的目的在于提供一种发光装置，发光装置的单件式散热鳍片可简化设计及制造复杂度。The object of the present invention is to provide a light emitting device, the one-piece cooling fin of the light emitting device can simplify the design and manufacture complexity.
根据本发明的一实施例，提出一种发光装置。发光装置包括一单件式散热鳍片、一电路板及一电绝缘外壳。单件式散热鳍片包括相连接的一承载部及一鳍片部。电路板设于承载部上。电绝缘外壳包覆单件式散热鳍片的承载部及鳍片部。According to an embodiment of the present invention, a light emitting device is provided. The light emitting device includes a one-piece heat dissipation fin, a circuit board and an electrical insulation shell. The one-piece cooling fin includes a bearing portion and a fin portion connected together. The circuit board is arranged on the bearing part. The electrical insulation shell covers the carrying portion and the fin portion of the one-piece heat dissipation fin.
藉此，本发明提供的发光装置的单件式散热鳍片可简化设计及制造复杂度。Therefore, the one-piece cooling fin of the light emitting device provided by the present invention can simplify the design and manufacturing complexity.
以下结合附图和具体实施例对本发明进行详细描述，但不作为对本发明的限定。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
附图说明Description of drawings
图1A绘示依照本发明一实施例的发光装置的示意图；FIG. 1A shows a schematic diagram of a light emitting device according to an embodiment of the present invention;
图1B绘示图1A的发光装置沿方向1B-1B'的剖视图；FIG. 1B is a cross-sectional view of the light emitting device of FIG. 1A along the direction 1B-1B';
图1B-1为图1B的局部放大图；Figure 1B-1 is a partially enlarged view of Figure 1B;
图2A绘示图1A的发光装置的俯视图；FIG. 2A is a top view of the light emitting device shown in FIG. 1A;
图2B绘示图2A的发光装置沿方向2B-2B'的剖视图；2B is a cross-sectional view of the light emitting device of FIG. 2A along the direction 2B-2B';
图3绘示图1B的单件式散热鳍片的外观图；FIG. 3 is an external view of the one-piece cooling fin shown in FIG. 1B;
图4绘示图1A的单件式散热鳍片及电绝缘外壳沿方向4-4'的剖视图；FIG. 4 shows a cross-sectional view of the single-piece heat dissipation fin and the electrical insulation shell along the direction 4-4' of FIG. 1A;
图5绘示图3的单件式散热鳍片的展开图；FIG. 5 shows an expanded view of the one-piece cooling fin shown in FIG. 3;
图6绘示图2A的发光装置沿方向6-6'的剖视图；FIG. 6 shows a cross-sectional view of the light emitting device in FIG. 2A along the direction 6-6';
图6-1为图6的局部放大图；Figure 6-1 is a partial enlarged view of Figure 6;
图7绘示依照本发明另一实施例的单件式散热鳍片的外观图；FIG. 7 shows an appearance view of a one-piece cooling fin according to another embodiment of the present invention;
图7-1为图7的局部放大图；Figure 7-1 is a partial enlarged view of Figure 7;
图8绘示图7的单件式散热鳍片的展开图；FIG. 8 shows an expanded view of the one-piece cooling fin shown in FIG. 7;
图9A绘示依照本发明另一实施例的发光装置的外观图；FIG. 9A shows an appearance view of a light emitting device according to another embodiment of the present invention;
图9B绘示图9A的发光装置沿方向9B-9B'的剖视图；FIG. 9B is a cross-sectional view of the light emitting device in FIG. 9A along the direction 9B-9B';
图10绘示图9A的单件式散热鳍片及电绝缘外壳沿方向10-10'的剖视图；FIG. 10 shows a cross-sectional view of the one-piece heat dissipation fin and the electrical insulation housing of FIG. 9A along the direction 10-10';
图11A绘示依照本发明另一实施例的发光装置的外观图；FIG. 11A shows an appearance view of a light emitting device according to another embodiment of the present invention;
图11B绘示图11A的发光装置沿方向11B-11B'的剖视图；FIG. 11B is a cross-sectional view of the light emitting device in FIG. 11A along the direction 11B-11B';
图12A绘示依照本发明另一实施例的单件式散热鳍片的展开图；FIG. 12A shows an expanded view of a one-piece heat dissipation fin according to another embodiment of the present invention;
图12B绘示图12A的单件式散热鳍片的折合图；FIG. 12B is a folded view of the one-piece cooling fin shown in FIG. 12A;
图13A绘示依照本发明另一实施例的单件式散热鳍片的展开图；FIG. 13A shows an expanded view of a one-piece cooling fin according to another embodiment of the present invention;
图13B绘示图13A的单件式散热鳍片的折合图。FIG. 13B is a folded view of the one-piece heat dissipation fin of FIG. 13A .
其中，附图标记Among them, reference signs
100、200、300：发光装置100, 200, 300: light emitting device
110、210、310：电绝缘外壳110, 210, 310: electrical insulation shell
110a1：第一对流孔110a1: First convection hole
110a2：第二对流孔110a2: Second convection hole
110s：内侧面110s: inner side
111：突出部111: protrusion
112：隔离部112: Isolation Department
112a：贯孔112a: through hole
120：发光元件120: light emitting element
130：光罩130: mask
131：透光壳131: Translucent shell
132：凸缘132: Flange
132r：卡合槽132r: engaging groove
132s：外侧面132s: Outer side
140：驱动器140: drive
141：导电线141: Conductive thread
150、250、450、550：单件式散热鳍片150, 250, 450, 550: One-piece cooling fins
150'、250'、450'、550'：展开片150', 250', 450', 550': Spread sheet
151：承载部151: bearing part
151a：贯孔151a: through hole
152、252、252'、252″：鳍片部152, 252, 252', 252″: Fins
1521：轴向部1521: axial part
1522：第一径向部1522: First Radial Section
1523：第二径向部1523: Second Radial Section
1524：周向部1524: Circumferential Department
1524s：外侧面1524s: Outer side
160：电路板160: circuit board
160r：凹槽160r: groove
170：焊点170: solder joints
210r：散热凹槽210r: cooling groove
213：第一包覆部213: First cladding department
214：第二包覆部214: Second cladding part
215：卡合部215: Engaging Department
252a：固定孔252a: Fixing hole
2524：第一固定部2524: The first fixed part
2525：第二固定部2525: The second fixed part
2524a：突出部2524a: Projection
2525a：凹口2525a: Notch
D1：外径D1: outer diameter
D2：内径D2: inner diameter
P1：间隙P1: Clearance
G1：气流G1: Airflow
具体实施方式detailed description
下面结合附图对本发明的结构原理和工作原理作具体的描述：Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:
请参照图1A及图1B，图1A绘示依照本发明一实施例的发光装置的示意图，而图1B绘示图1A的发光装置沿方向1B-1B'的剖视图，图1B-1为图1B的局部放大图。Please refer to FIG. 1A and FIG. 1B. FIG. 1A shows a schematic diagram of a light-emitting device according to an embodiment of the present invention, and FIG. 1B shows a cross-sectional view of the light-emitting device in FIG. 1A along the direction 1B-1B', and FIG. 1B-1 is FIG. 1B A partial enlargement of the .
发光装置100例如是灯泡或其它可供照明的装置。发光装置100包括电绝缘外壳110、发光元件120、光罩130、驱动器140、单件式散热鳍片150及电路板160。The lighting device 100 is, for example, a light bulb or other lighting devices. The light emitting device 100 includes an electrically insulating housing 110 , a light emitting element 120 , a photomask 130 , a driver 140 , a one-piece heat dissipation fin 150 and a circuit board 160 .
电绝缘外壳110包覆单件式散热鳍片150的外侧面的至少一部分，以避免单件式散热鳍片150轻易脱离电绝缘外壳110，且可避免单件式散热鳍片150与单件式散热鳍片150以外的元件电性短路。The electrical insulation shell 110 covers at least a part of the outer surface of the one-piece heat dissipation fin 150, so as to prevent the one-piece heat dissipation fin 150 from easily detaching from the electric insulation shell 110, and to prevent the one-piece heat dissipation fin 150 from being separated from the one-piece heat dissipation fin 150. Components other than the cooling fins 150 are electrically shorted.
发光元件120设于电路板160上，并电性连接于驱动器140。驱动器140可控制发光元件120发射光线。发光元件120所发射光线从光罩130出光，使发光装置100提供一照明功能。此外，发光元件120在发光时会产生热量，热量可经由电路板160及单件式散热鳍片150传导至电绝缘外壳110，然后通过电绝缘外壳110对流至外界。发光元件120例如可为一发光二极管(LED)光源，发光装置100内可设有多个相同或不同颜色的LED光源，藉由驱动器140控制个别的LED光源以产生需要的照明功能，例如不同的照明形状或照明颜色。The light emitting element 120 is disposed on the circuit board 160 and electrically connected to the driver 140 . The driver 140 can control the light emitting element 120 to emit light. The light emitted by the light emitting element 120 is emitted from the mask 130 so that the light emitting device 100 provides an illumination function. In addition, the light emitting element 120 generates heat when emitting light, and the heat can be conducted to the electrical insulating housing 110 through the circuit board 160 and the single-piece heat dissipation fin 150 , and then convected to the outside through the electrical insulating housing 110 . The light-emitting element 120 can be, for example, a light-emitting diode (LED) light source. A plurality of LED light sources of the same or different colors can be arranged in the light-emitting device 100, and the individual LED light sources can be controlled by the driver 140 to produce required lighting functions, such as different Lighting shape or lighting color.
电绝缘外壳110例如是由塑胶或其它电绝缘材料制成。电绝缘外壳110包括多个第一对流孔110a1及多个第二对流孔110a2。第一对流孔110a1位于电绝缘外壳110的下部，并贯穿电绝缘外壳110的厚度。第二对流孔110a2位于电绝缘外壳110的上部，并贯穿电绝缘外壳110的厚度。单件式散热鳍片150位于第一对流孔110a1与第二对流孔110a2之间；如此一来，气流G1可流通于第一对流孔110a1及第二对流孔110a2之间，以带走单件式散热鳍片150的热量。进一步地说，发光元件120的热量可通过电路板160传导至单件式散热鳍片150，然后再以气流G1带动对流至外界。The electrically insulating casing 110 is made of, for example, plastic or other electrically insulating materials. The electrical insulation housing 110 includes a plurality of first convection holes 110a1 and a plurality of second convection holes 110a2. The first convection hole 110a1 is located at the lower part of the electrical insulation shell 110 and penetrates through the thickness of the electrical insulation shell 110 . The second convection hole 110 a 2 is located on the upper part of the electrical insulation shell 110 and penetrates through the thickness of the electrical insulation shell 110 . The one-piece cooling fin 150 is located between the first convection hole 110a1 and the second convection hole 110a2; in this way, the airflow G1 can flow between the first convection hole 110a1 and the second convection hole 110a2 to take away the single piece heat dissipation fins 150. Furthermore, the heat of the light-emitting element 120 can be conducted to the single-piece heat dissipation fin 150 through the circuit board 160 , and then convected to the outside by the airflow G1 .
此外，第二对流孔110a2的位置大致上与发光元件120等高，且环绕发光元件120；如此一来，虽然图未绘示，然气流G1亦可横向地流通于此些第二对流孔110a2之间，以带走电路板160及发光元件120的热量。In addition, the position of the second convection hole 110a2 is substantially at the same height as the light emitting element 120 and surrounds the light emitting element 120; thus, although not shown in the figure, the gas flow G1 can also flow through these second convection holes 110a2 laterally. Between, in order to take away the heat of the circuit board 160 and the light emitting element 120.
如图1B所示，光罩130包括透光壳131及凸缘132，其中凸缘132呈环形且连接于透光壳131的开口端。凸缘132往透光壳131的内部方向突出，且具有一卡合槽132r。电绝缘外壳110包括多个突出部111，突出部111突出于电绝缘外壳110的内侧面。通过突出部111卡合于卡合槽132r，可避免光罩130与电绝缘外壳110脱离。As shown in FIG. 1B , the photomask 130 includes a light-transmitting shell 131 and a flange 132 , wherein the flange 132 is ring-shaped and connected to the open end of the light-transmitting shell 131 . The flange 132 protrudes toward the interior of the light-transmitting case 131 and has an engaging groove 132r. The electrical insulation housing 110 includes a plurality of protrusions 111 protruding from the inner side of the electrical insulation housing 110 . By engaging the protruding portion 111 with the engaging groove 132r, it is possible to prevent the photomask 130 from being detached from the electrical insulation case 110 .
请参照图2A及图2B，图2A绘示图1A的发光装置的俯视图，而图2B绘示图2A的发光装置沿方向2B-2B'的剖视图。凸缘132的外侧面132s与电绝缘外壳110的内侧面110s之间具有一对流间隙P1，气流G1可流通于对流间隙P1与第一对流孔110a1(图1B)之间以及流通于间隙P1与第二对流孔110a2(图1B)之间，以将单件式散热鳍片150的热量对流至外界。Please refer to FIG. 2A and FIG. 2B , FIG. 2A shows a top view of the light emitting device in FIG. 1A , and FIG. 2B shows a cross-sectional view of the light emitting device in FIG. 2A along the direction 2B-2B′. There is a convection gap P1 between the outer surface 132s of the flange 132 and the inner surface 110s of the electrical insulation housing 110, and the airflow G1 can flow between the convection gap P1 and the first convection hole 110a1 ( FIG. 1B ) and between the gap P1 and Between the second convection holes 110 a 2 ( FIG. 1B ), the heat of the single-piece heat dissipation fin 150 is convected to the outside.
图3绘示图1B的单件式散热鳍片的外观图。本实施例的散热鳍片150为一体成型的单件式散热鳍片，如此可节省组装成本及制造成本。单件式散热鳍片150包括相连接的承载部151及多个鳍片部152，其中承载部151大致上沿XY平面延伸，而鳍片部152大致上沿Z轴向延伸，其中Z轴向例如是光轴方向。上述电路板160设于承载部151上，而电绝缘外壳110包覆单件式散热鳍片150的承载部151的外表面的至少一部分及鳍片部152的外表面的至少一部分。FIG. 3 is an external view of the one-piece cooling fin shown in FIG. 1B . The heat dissipation fins 150 of this embodiment are integrally formed single-piece heat dissipation fins, which can save assembly costs and manufacturing costs. The one-piece heat dissipation fin 150 includes a connected bearing part 151 and a plurality of fin parts 152, wherein the bearing part 151 extends substantially along the XY plane, and the fin part 152 substantially extends along the Z axis, wherein the Z axis For example, the optical axis direction. The above-mentioned circuit board 160 is disposed on the carrying portion 151 , and the electrically insulating shell 110 covers at least a portion of the outer surface of the carrying portion 151 and at least a portion of the outer surface of the fin portion 152 of the one-piece heat dissipation fin 150 .
各鳍片部152连接于承载部151且大致上垂直于承载部151，然本发明实施例不限于此；另一实施例中，鳍片部152与承载部151之间也可夹一相异于90度的角度。各鳍片部152包括轴向部1521、第一径向部1522及第二径向部1523，其中轴向部1521大致上沿Z轴方向延伸，而第一径向部1522及第二径向部1523分别从轴向部1521的第一侧及第二侧径向地往外延伸，使第一径向部1522及第二径向部1523呈一辐射状分布。Each fin portion 152 is connected to the carrying portion 151 and is substantially perpendicular to the carrying portion 151, but the embodiment of the present invention is not limited thereto; at an angle of 90 degrees. Each fin portion 152 includes an axial portion 1521, a first radial portion 1522 and a second radial portion 1523, wherein the axial portion 1521 extends substantially along the Z-axis direction, and the first radial portion 1522 and the second radial portion 1522 The portion 1523 extends radially outward from the first side and the second side of the axial portion 1521 respectively, so that the first radial portion 1522 and the second radial portion 1523 are distributed radially.
此外，各鳍片部152更包括二个周向部1524，各周向部1524分别从第一径向部1522及第二径向部1523周向地(例如是绕Z轴方向)延伸。周向部1524可稳定单件式散热鳍片150与电绝缘外壳110的相对位置。In addition, each fin portion 152 further includes two circumferential portions 1524 , and each circumferential portion 1524 extends circumferentially from the first radial portion 1522 and the second radial portion 1523 (for example, around the Z-axis direction). The circumferential portion 1524 can stabilize the relative position of the one-piece heat dissipation fin 150 and the electrically insulating housing 110 .
图4绘示图1A的单件式散热鳍片及电绝缘外壳沿方向4-4'的剖视图。周向部1524的外侧面1524s接触电绝缘外壳110的内侧面110s，且周向部1524的外侧面1524s提供一面积与电绝缘外壳110接触，如此一来，可增加单件式散热鳍片150与电绝缘外壳110的相对稳定性。在此设计下，电绝缘外壳110可另外独立成形后，单件式散热鳍片150再放置于电绝缘外壳110内部。然本发明实施例不限于此，另一实施例中，于电绝缘外壳110的射出成形工艺中，单件式散热鳍片150可先预埋于射出成形模具内，在射出成形后，电绝缘外壳110包覆单件式散热鳍片150的外表面的至少一部分。FIG. 4 is a cross-sectional view of the one-piece heat dissipation fin and the electrical insulation case along the direction 4 - 4 ′ of FIG. 1A . The outer surface 1524s of the circumferential portion 1524 contacts the inner surface 110s of the electrically insulating shell 110, and the outer surface 1524s of the circumferential portion 1524 provides an area to contact the electrically insulating shell 110. In this way, the contact between the single-piece heat dissipation fin 150 and the electrically insulating shell can be increased. Relative stability of 110. Under this design, the electrically insulating shell 110 can be separately formed, and then the one-piece heat dissipation fin 150 is placed inside the electrically insulating shell 110 . However, the embodiment of the present invention is not limited thereto. In another embodiment, in the injection molding process of the electrically insulating shell 110, the one-piece heat dissipation fin 150 can be pre-embedded in the injection molding mold, and after the injection molding, the electrical insulation The shell 110 covers at least a portion of the outer surface of the one-piece heat dissipation fin 150 .
图5绘示图3的单件式散热鳍片的展开图。就单件式散热鳍片150的成形方法而言，单件式散热鳍片150可先采用板金冲压形成如图5所示的单件的展开片150'。板金冲压工艺后，鳍片部152与承载部151为一次形成；然后，再将展开片150'折弯成图3所示的单件式散热鳍片150。采用板金成形的单件式散热鳍片150的结构较简单且重量较轻(相较于压铸成形而言)。就单件式散热鳍片150的材料而言，单件式散热鳍片150的材料可包括铜、铝或其组合。FIG. 5 is an expanded view of the one-piece heat dissipation fin shown in FIG. 3 . Regarding the forming method of the one-piece heat dissipation fin 150 , the one-piece heat dissipation fin 150 can first be stamped with a sheet metal to form a single-piece expanded piece 150 ′ as shown in FIG. 5 . After the sheet metal stamping process, the fin portion 152 and the bearing portion 151 are formed at one time; and then, the unfolded sheet 150 ′ is bent to form the single-piece heat dissipation fin 150 shown in FIG. 3 . The one-piece cooling fin 150 formed from sheet metal has a simpler structure and lighter weight (compared to die-casting). Regarding the material of the one-piece heat dissipation fin 150 , the material of the one-piece heat dissipation fin 150 may include copper, aluminum or a combination thereof.
图6绘示图2A的发光装置沿方向6-6'的剖视图，图6-1为图6的局部放大图。驱动器140包括二导电线141，而承载部151具有一贯孔151a。电绝缘外壳110更包括一隔离部112，隔离部112穿过贯孔151a，并具有二贯孔112a。二导电线141分别穿过二贯孔112a并延伸至与电路板160电性连接。由于隔离部112隔离导电线141与承载部151，因此可避免承载部151与导电线141电性短路。发光装置100更包括二焊点170，各焊点170焊合在对应的导电线141的周围，以电性连接导电线141与形成于电路板160上的线路(未绘示)。FIG. 6 is a cross-sectional view of the light emitting device of FIG. 2A along the direction 6 - 6 ′, and FIG. 6-1 is a partially enlarged view of FIG. 6 . The driver 140 includes two conductive wires 141, and the carrying portion 151 has a through hole 151a. The electrical insulation housing 110 further includes an isolation portion 112 , the isolation portion 112 passes through the through hole 151 a and has two through holes 112 a. The two conductive wires 141 respectively pass through the two through holes 112 a and extend to electrically connect with the circuit board 160 . Since the isolation part 112 isolates the conductive wire 141 and the carrying part 151 , an electrical short circuit between the carrying part 151 and the conductive wire 141 can be avoided. The light emitting device 100 further includes two soldering points 170 , and each soldering point 170 is soldered around the corresponding conductive wire 141 to electrically connect the conductive wire 141 with a circuit (not shown) formed on the circuit board 160 .
电路板160具有容置凹槽160r，隔离部112的一部分位于贯孔151a，隔离部112的另一部分位于容置凹槽160r。由于容置凹槽160r的设计，使隔离部112不会与电路板160的实体材料干涉，进而避免隔离部112顶起电路板160而负面影响电路板160的定位性。The circuit board 160 has a receiving groove 160r, a part of the isolation part 112 is located in the through hole 151a, and another part of the isolation part 112 is located in the receiving groove 160r. Due to the design of the accommodating groove 160 r , the isolation part 112 will not interfere with the solid material of the circuit board 160 , thereby preventing the isolation part 112 from pushing up the circuit board 160 and negatively affecting the positioning of the circuit board 160 .
此外，电路板160例如是金属基印刷电路板(MetalCorePCB,MCPCB)。电路板160包括绝缘层161及导热层162，其中发光元件120设于绝缘层161上。导热层162例如是铝层，且具有上述容置凹槽160r，以容置部分隔离部112。In addition, the circuit board 160 is, for example, a metal-based printed circuit board (MetalCorePCB, MCPCB). The circuit board 160 includes an insulating layer 161 and a heat conducting layer 162 , wherein the light emitting element 120 is disposed on the insulating layer 161 . The heat conduction layer 162 is, for example, an aluminum layer, and has the above-mentioned accommodating groove 160 r for accommodating part of the isolation portion 112 .
图7绘示依照本发明另一实施例的单件式散热鳍片的外观图，图7-1为图7的局部放大图。相较于单件式散热鳍片150，单件式散热鳍片250省略二周向部1524。单件式散热鳍片250包括相连接的承载部151及多个鳍片部252。各鳍片部252连接于承载部151且大致上垂直于承载部151。另一实施例中，鳍片部152与承载部151之间可夹一大致上等于或相异于90度的角度。各鳍片部252包括轴向部1521、第一径向部1522及第二径向部1523，其中第一径向部1522及第二径向部1523分别从轴向部1521的第一侧及第二侧径向地往外延伸，使第一径向部1522及第二径向部1523呈一辐射状分布。FIG. 7 is an external view of a one-piece cooling fin according to another embodiment of the present invention, and FIG. 7-1 is a partial enlarged view of FIG. 7 . Compared with the single-piece heat dissipation fin 150 , the single-piece heat dissipation fin 250 omits the two circumferential portions 1524 . The one-piece heat dissipation fin 250 includes a connected carrying portion 151 and a plurality of fin portions 252 . Each fin portion 252 is connected to the carrying portion 151 and is substantially perpendicular to the carrying portion 151 . In another embodiment, an angle substantially equal to or different from 90 degrees may be formed between the fin portion 152 and the carrying portion 151 . Each fin portion 252 includes an axial portion 1521, a first radial portion 1522 and a second radial portion 1523, wherein the first radial portion 1522 and the second radial portion 1523 extend from the first side of the axial portion 1521 and the second radial portion 1523 respectively. The second side extends radially outward, so that the first radial portion 1522 and the second radial portion 1523 are distributed radially.
各鳍片部252更包括第一固定部2524及第二固定部2525。第一固定部2524连接于第一径向部1522并往远离第一径向部1522的方向延伸，以与邻近的鳍片部252'的第二固定部2525(因为视角关系，所以看不到)连接。第二固定部2525连接于第二径向部1523并往远离第二径向部1523的方向延伸，以与邻近的鳍片部252″的第一固定部2524连接。如此一来，相邻二鳍片部可彼此连接，以增加单件式散热鳍片250的整体刚性。由于单件式散热鳍片250的整体刚性提升，使在电绝缘外壳的射出成形工艺中，单件式散热鳍片250可更稳固地预埋于射出成型模具内。Each fin portion 252 further includes a first fixing portion 2524 and a second fixing portion 2525 . The first fixing portion 2524 is connected to the first radial portion 1522 and extends away from the first radial portion 1522 so as to be in contact with the second fixing portion 2525 of the adjacent fin portion 252' (not visible due to viewing angle). )connect. The second fixing portion 2525 is connected to the second radial portion 1523 and extends away from the second radial portion 1523 to connect with the first fixing portion 2524 of the adjacent fin portion 252″. In this way, two adjacent The fin parts can be connected to each other to increase the overall rigidity of the single-piece heat dissipation fin 250. Due to the overall rigidity of the single-piece heat dissipation fin 250 is improved, in the injection molding process of the electrically insulating shell, the single-piece heat dissipation fin 250 can be more firmly embedded in the injection molding mold.
如图7所示，第一固定部2524及第二固定部2525是周向地延伸，且第一固定部2524包括一突出部2524a，第二固定部2525包括一凹口2525a，突出部2524a卡合于凹口2525a。本实施例中，突出部2524a具有一往凹口2525a的方向扩大的外径D1，而凹口2525a具有一往突出部2524a的方向缩小的内径D2；如此一来，突出部2524a可卡合于凹口2525a内，且不容易分离。本实施例中，突出部2524a的形状与凹口2525a的形状互补，然此非用以限制本发明实施例。此外，本发明实施例不限定第一固定部2524与第二固定部2525的连接方式，其可采用锁合、卡合、焊合、铆合、胶合、其它暂时性或永久性结合方式连接。此外，第一固定部2524与第二固定部2525不限于机械式连接，其也可以采用化学方式连接。As shown in Figure 7, the first fixing portion 2524 and the second fixing portion 2525 extend circumferentially, and the first fixing portion 2524 includes a protruding portion 2524a, the second fixing portion 2525 includes a notch 2525a, and the protruding portion 2524a engages fits into the notch 2525a. In this embodiment, the protruding portion 2524a has an outer diameter D1 that expands toward the notch 2525a, and the notch 2525a has an inner diameter D2 that decreases toward the protruding portion 2524a; thus, the protruding portion 2524a can be engaged with Notch 2525a, and not easy to separate. In this embodiment, the shape of the protrusion 2524a is complementary to the shape of the notch 2525a, but this is not intended to limit the embodiment of the present invention. In addition, the embodiment of the present invention does not limit the connection method of the first fixing part 2524 and the second fixing part 2525, which can be connected by locking, snapping, welding, riveting, gluing, or other temporary or permanent methods. In addition, the first fixing part 2524 and the second fixing part 2525 are not limited to being connected mechanically, and they can also be connected chemically.
图8绘示图7的单件式散热鳍片的展开图。就单件式散热鳍片250的成形方法而言，单件式散热鳍片250可先采用板金冲压形成如图8所示的单件的展开片250'。板金冲压工艺后，鳍片部252与承载部151为一次形成。然后，再将展开片250'折弯成图7所示的单件式散热鳍片250。就单件式散热鳍片250的材料而言，单件式散热鳍片250的材料可包括铜、铝或其组合。FIG. 8 is an expanded view of the one-piece heat dissipation fin shown in FIG. 7 . Regarding the forming method of the one-piece heat dissipation fin 250 , the one-piece heat dissipation fin 250 may first be formed by sheet metal stamping to form a single-piece expanded piece 250 ′ as shown in FIG. 8 . After the sheet metal stamping process, the fin portion 252 and the bearing portion 151 are formed at one time. Then, the unfolded sheet 250' is bent into a one-piece cooling fin 250 as shown in FIG. 7 . Regarding the material of the one-piece heat dissipation fin 250 , the material of the one-piece heat dissipation fin 250 may include copper, aluminum or a combination thereof.
请参照图9A至图9B，图9A绘示依照本发明另一实施例的发光装置的外观图，而图9B绘示图9A的发光装置沿方向9B-9B'的剖视图。发光装置200包括电绝缘外壳210、发光元件120、光罩130、驱动器140、上述单件式散热鳍片250及电路板160。Please refer to FIG. 9A to FIG. 9B , FIG. 9A shows an appearance view of a light emitting device according to another embodiment of the present invention, and FIG. 9B shows a cross-sectional view of the light emitting device in FIG. 9A along the direction 9B-9B′. The light emitting device 200 includes an electrical insulation housing 210 , a light emitting element 120 , a photomask 130 , a driver 140 , the aforementioned one-piece heat dissipation fin 250 and a circuit board 160 .
请同时参照图9A及图7，由于图7的单件式散热鳍片250省略周向部1524，使在射出成形工艺中，电绝缘外壳210的材料不会受到周向部1524的阻挡而能顺利地流入第一径向部1522与第二径向部1523之间，以包覆第一径向部1522与第二径向部1523。包覆第一径向部1522与第二径向部1523电绝缘外壳210的材料之间形成一散热凹槽210r。具体而言，电绝缘外壳210包括多个第一包覆部213(如图9A所示)及多个第二包覆部214(如图9A所示)，第一包覆部213及第二包覆部214分别包覆同一个鳍片部152的第一径向部1522(如图7所示)及第二径向部1523(如图7所示)。第一包覆部213与第二包覆部214彼此间隔，使其间形成散热凹槽210r。由于散热凹槽210r的内凹设计，可增加电绝缘外壳210外露的散热面积，进而提升散热效率。Please refer to FIG. 9A and FIG. 7 at the same time. Since the one-piece cooling fin 250 in FIG. 7 omits the circumferential portion 1524, in the injection molding process, the material of the electrical insulation shell 210 will not be blocked by the circumferential portion 1524 and can flow smoothly into the first Between a radial portion 1522 and the second radial portion 1523 to cover the first radial portion 1522 and the second radial portion 1523 . A heat dissipation groove 210r is formed between the material covering the first radial portion 1522 and the second radial portion 1523 of the electrically insulating casing 210 . Specifically, the electrical insulation housing 210 includes a plurality of first covering parts 213 (as shown in FIG. 9A ) and a plurality of second covering parts 214 (as shown in FIG. 9A ), and the first covering parts 213 and the second covering parts The covering portion 214 respectively covers the first radial portion 1522 (as shown in FIG. 7 ) and the second radial portion 1523 (as shown in FIG. 7 ) of the same fin portion 152 . The first wrapping portion 213 and the second wrapping portion 214 are spaced apart from each other such that a heat dissipation groove 210r is formed therebetween. Due to the concave design of the heat dissipation groove 210r, the exposed heat dissipation area of the electrical insulation casing 210 can be increased, thereby improving the heat dissipation efficiency.
图10绘示图9A的单件式散热鳍片及电绝缘外壳沿方向10-10'的剖视图。各鳍片部252具有至少一固定孔252a，电绝缘外壳210包括一卡合部215，卡合部215卡合于固定孔252a，以稳定单件式散热鳍片250与电绝缘外壳210的相对位置。就电绝缘外壳210的成形方法而言，单件式散热鳍片250可先预埋于射出成形模具内，在射出成形后，电绝缘外壳210包覆单件式散热鳍片250的外表面的至少一部分，且电绝缘外壳210的部分材料(如卡合部215)流经固定孔252a。待电绝缘外壳210的部分材料冷却凝固后，位于固定孔252a内的电绝缘材料形成卡合部215。FIG. 10 is a cross-sectional view of the one-piece heat dissipation fin and the electrical insulation housing of FIG. 9A along the direction 10 - 10 ′. Each fin part 252 has at least one fixing hole 252a, and the electrical insulation housing 210 includes a locking part 215, and the locking part 215 is engaged in the fixing hole 252a, so as to stabilize the relative position between the one-piece cooling fin 250 and the electrical insulation housing 210 Location. As far as the forming method of the electrical insulation shell 210 is concerned, the one-piece heat dissipation fin 250 can be pre-embedded in the injection molding mold, and after the injection molding, the electric insulation shell 210 covers the outer surface of the single-piece heat dissipation fin 250 At least a part, and part of the material of the electrical insulation housing 210 (such as the engaging portion 215 ) flows through the fixing hole 252 a. After part of the material of the electrical insulation housing 210 is cooled and solidified, the electrical insulation material located in the fixing hole 252 a forms the engaging portion 215 .
请参照图11A及图11B，图11A绘示依照本发明另一实施例的发光装置的外观图，图11B绘示图11A的发光装置沿方向11B-11B'的剖视图。Please refer to FIG. 11A and FIG. 11B , FIG. 11A shows an appearance view of a light emitting device according to another embodiment of the present invention, and FIG. 11B shows a cross-sectional view of the light emitting device in FIG. 11A along the direction 11B-11B'.
发光装置300包括电绝缘外壳310、发光元件120、光罩130、驱动器140、单件式散热鳍片150及电路板160。然而本实施例的单件式散热鳍片150亦可替换为单件式散热鳍片250，在此不受限制。The light emitting device 300 includes an electrically insulating housing 310 , a light emitting element 120 , a photomask 130 , a driver 140 , a one-piece heat dissipation fin 150 and a circuit board 160 . However, the one-piece heat dissipation fin 150 in this embodiment can also be replaced by the one-piece heat dissipation fin 250 , which is not limited here.
与上述实施例的发光装置不同的是，本实施例的发光装置300的电绝缘外壳310省略任何的对流孔、卡合孔及凹槽，使电绝缘外壳310的侧壁不具任何镂空部或凹陷部，使其外观为一平滑的表面。举例来说，相较于上述实施例的发光装置100，本实施例的发光装置300的电绝缘外壳310省略第一对流孔110a1及第二对流孔110a2；相较于上述实施例的发光装置200，本实施例的发光装置300的电绝缘外壳310省略散热凹槽210r，由于省略了上述第一对流孔110a1、第二对流孔110a2及凹槽210r，电绝缘外壳310具有一平滑外轮廓。Different from the light-emitting device of the above-mentioned embodiment, the electric insulating shell 310 of the light-emitting device 300 of this embodiment omits any convection holes, engaging holes and grooves, so that the side wall of the electric insulating shell 310 does not have any hollow part or depression to give it the appearance of a smooth surface. For example, compared with the light-emitting device 100 of the above-mentioned embodiment, the electrical insulation housing 310 of the light-emitting device 300 of this embodiment omits the first convection hole 110a1 and the second convection hole 110a2; compared with the light-emitting device 200 of the above-mentioned embodiment The electrical insulation housing 310 of the light emitting device 300 in this embodiment omits the heat dissipation groove 210r. Since the first convection hole 110a1, the second convection hole 110a2 and the groove 210r are omitted, the electrical insulation housing 310 has a smooth outer contour.
请参照图12A及图12B，图12A绘示依照本发明另一实施例的单件式散热鳍片的展开图，图12B绘示图12A的单件式散热鳍片的折合图。Please refer to FIG. 12A and FIG. 12B , FIG. 12A shows an expanded view of a one-piece heat dissipation fin according to another embodiment of the present invention, and FIG. 12B shows a folded view of the one-piece heat dissipation fin in FIG. 12A .
相较于单件式散热鳍片150及250，本实施例的单件式散热鳍片450或展开片450’的热传导通道的数量较多。详细来说，单件式散热鳍片150的轴向部1521的数量为6个，而本实施例的单件式散热鳍片450的轴向部1521的数量为10个。藉由增加轴向部1521的数量，可提升热传导效率。Compared with the single-piece heat dissipation fins 150 and 250, the single-piece heat dissipation fin 450 or the expansion sheet 450' of this embodiment has more heat conduction channels. In detail, the number of axial portions 1521 of the single-piece heat dissipation fin 150 is six, while the number of axial portions 1521 of the single-piece heat dissipation fin 450 of this embodiment is ten. By increasing the number of axial portions 1521, the heat conduction efficiency can be improved.
请参照图13A及图13B，图13A绘示依照本发明另一实施例的单件式散热鳍片的展开图，图13B绘示图13A的单件式散热鳍片的折合图。相似地，相较于单件式散热鳍片150及250，本实施例的单件式散热鳍片550或展开片550’的热传导通道的数量较多。Please refer to FIG. 13A and FIG. 13B , FIG. 13A shows an expanded view of a one-piece heat dissipation fin according to another embodiment of the present invention, and FIG. 13B shows a folded view of the one-piece heat dissipation fin of FIG. 13A . Similarly, compared with the single-piece heat dissipation fins 150 and 250, the single-piece heat dissipation fin 550 or the expansion sheet 550' of this embodiment has more heat conduction channels.
当然，本发明还可有其他多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354715.7ACN105318299A (en) | 2014-07-24 | 2014-07-24 | Light emitting device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354715.7ACN105318299A (en) | 2014-07-24 | 2014-07-24 | Light emitting device |
| Publication Number | Publication Date |
|---|---|
| CN105318299Atrue CN105318299A (en) | 2016-02-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410354715.7APendingCN105318299A (en) | 2014-07-24 | 2014-07-24 | Light emitting device |
| Country | Link |
|---|---|
| CN (1) | CN105318299A (en) |
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| CN101545621A (en)* | 2008-03-28 | 2009-09-30 | 台达电子工业股份有限公司 | Lighting device and its heat dissipation structure |
| US20100091487A1 (en)* | 2008-10-13 | 2010-04-15 | Hyundai Telecommunication Co., Ltd. | Heat dissipation member having variable heat dissipation paths and led lighting flood lamp using the same |
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| CN201739983U (en)* | 2010-06-21 | 2011-02-09 | 鸿坤科技股份有限公司 | LED lamps and cooling modules |
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| CN101545621A (en)* | 2008-03-28 | 2009-09-30 | 台达电子工业股份有限公司 | Lighting device and its heat dissipation structure |
| US20100091487A1 (en)* | 2008-10-13 | 2010-04-15 | Hyundai Telecommunication Co., Ltd. | Heat dissipation member having variable heat dissipation paths and led lighting flood lamp using the same |
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| CN201739983U (en)* | 2010-06-21 | 2011-02-09 | 鸿坤科技股份有限公司 | LED lamps and cooling modules |
| CN202253515U (en)* | 2011-10-11 | 2012-05-30 | 讯凯国际股份有限公司 | Light emitting diode lamp |
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20160210 |