CN102588784A - LED lighting device with double heat dissipation structure - Google Patents

Abstract

The invention discloses an LED light-emitting device with a double heat dissipation structure, which comprises a lamp body, wherein the lamp body is provided with two groups of LED lamp beads, namely a first group of LED lamp beads and a second group of LED lamp beads; the lamp body extends backward and is provided with two radiators which are respectively a first radiator corresponding to the first group of LED lamp beads and a second radiator corresponding to the second group of LED lamp beads. According to the LED lamp, the two groups of LED lamp beads work in turn, so that the long-time work of the LED lamp is realized, the working temperature of the LED lamp can be always lower than the set temperature in different working environments, and the service life of the LED lamp is prolonged. In addition, the radiator is provided with a liquid radiating pipeline, and the liquid radiating pipelines of the two radiators are connected in series into a circulating loop through the two connecting pipes, so that the radiator of the group of LED lamp beads which do not work can serve as an auxiliary radiator. The LED light-emitting device with the double heat dissipation structure is particularly suitable for LED lamp products such as high-power mining lamps and the like.

Description

Translated fromChinese

具有双散热结构的LED发光装置LED lighting device with double heat dissipation structure

技术领域technical field

本发明涉及一种LED灯结构，更具体地说是指具有双散热结构的LED发光装置，体积较大的大功率LED灯具产品。The invention relates to an LED lamp structure, more specifically, an LED light-emitting device with a double heat dissipation structure, and a large-volume high-power LED lamp product.

背景技术Background technique

现有技术中，LED灯已经在照明行业得到广泛的应用，已被制成各种各样的产品应用于市场，然而LED灯的发热直接影响到LED灯的寿命，现有的LED灯通常采用加大散热结构的方式来实现更好的散热效果，以此保证LED灯的温度不会太高，并能保证LED产品的寿命。然而现有的厂商，在其LED灯产品的性能测试过程中，产品处于一种较为理想的状态，LED灯在实际应用时的工作环境是各不相同的，包括LED灯产品的工作模式(比如是连续使用，还是临时使用一二个小时)，都会对LED灯造成不同的影响，不同的使用环境，直接决定了LED灯产品的寿命。为了更安全的散热保障，生产商的大多数做法是采用过大的散热结构，比如加大散热片的数量，深度、长度、宽度等等，但由此造成了LED灯的体积过大，由于物料成本过高，散热结构增大，进一步增大了LED灯的生产成本，不利于LED灯的产业应用。In the prior art, LED lamps have been widely used in the lighting industry, and have been made into various products and applied to the market. However, the heat generation of LED lamps directly affects the life of LED lamps. Existing LED lamps usually use Increase the heat dissipation structure to achieve a better heat dissipation effect, so as to ensure that the temperature of the LED lamp will not be too high, and the life of the LED product can be guaranteed. However, the existing manufacturers, in the performance test process of their LED lamp products, the products are in a relatively ideal state, and the working environment of LED lamps in actual application is different, including the working mode of LED lamp products (such as Whether it is continuous use or temporary use for one or two hours), it will have different effects on the LED lamp. Different use environments directly determine the life of the LED lamp product. In order to ensure a safer heat dissipation, most manufacturers adopt an excessively large heat dissipation structure, such as increasing the number, depth, length, and width of heat sinks, etc., but this causes the LED lamp to be too large. The material cost is too high, and the heat dissipation structure increases, which further increases the production cost of the LED lamp, which is not conducive to the industrial application of the LED lamp.

发明内容Contents of the invention

本发明的目的在于为克服现有技术的缺陷，而提供一种具有双散热结构的LED发光装置，每个散热结构各配有一组LED灯珠，利用控制器的温度检测功能，自动切换不同的LED灯珠，从而保证在不同的使用环境下，LED灯的内部温度始终处于安全区域，有利于保证LED灯的健康运行，保证LED灯的长寿命。The object of the present invention is to overcome the defects of the prior art, and provide an LED light emitting device with double heat dissipation structures, each heat dissipation structure is equipped with a set of LED lamp beads, and the temperature detection function of the controller is used to automatically switch between different LED lights. LED lamp beads, so as to ensure that the internal temperature of the LED lamp is always in a safe area under different use environments, which is conducive to ensuring the healthy operation of the LED lamp and ensuring the long life of the LED lamp.

为实现上述目的，本发明采用以下技术方案：To achieve the above object, the present invention adopts the following technical solutions:

具有双散热结构的LED发光装置，包括灯体，所述的灯体设有二组LED灯珠，分别为第一组LED灯珠和第二组LED灯珠；所述的灯体向后延伸设有二个散热器，分别为对应于第一组LED灯珠的第一散热器和对应于第二组LED灯珠的第二散热器。The LED light-emitting device with double heat dissipation structure includes a lamp body, and the lamp body is provided with two sets of LED lamp beads, which are respectively the first group of LED lamp beads and the second group of LED lamp beads; the lamp body extends backward There are two radiators, which are respectively the first radiator corresponding to the first group of LED lamp beads and the second radiator corresponding to the second group of LED lamp beads.

其进一步技术方案为：所述的第一散热器和第二散热器均为设有散热翅片的金属散热器。Its further technical solution is: the first radiator and the second radiator are both metal radiators provided with cooling fins.

其进一步技术方案为：还包括用于固定第一组LED灯珠的第一基板和用于固定第二组LED灯珠的第二基板。Its further technical solution is: it also includes a first substrate for fixing the first group of LED lamp beads and a second substrate for fixing the second group of LED lamp beads.

其进一步技术方案为：还包括电源电路、与电源电路联接的控制器、与控制器联接的继电器，所述的继电器设有分别与第一组LED灯珠、第二组LED灯珠联接的二组触点；还包括与控制器联接的第一温度传感器、第二温度传感器，所述的第一温度传感器设于第一基板上，所述的第二温度传感器设于第二基板上。Its further technical solution is: it also includes a power circuit, a controller connected to the power circuit, and a relay connected to the controller. The set of contacts also includes a first temperature sensor and a second temperature sensor connected to the controller, the first temperature sensor is set on the first substrate, and the second temperature sensor is set on the second substrate.

其进一步技术方案为：所述的第一组LED灯珠、第二组LED灯珠均并联有电容。Its further technical solution is: the first group of LED lamp beads and the second group of LED lamp beads are connected in parallel with capacitors.

其进一步技术方案为：所述的灯体前端还设有灯罩。Its further technical solution is: the front end of the lamp body is also provided with a lampshade.

其进一步技术方案为：所述的第一散热器、第二散热器内各设有第一液体散热管道、第二液体散热管道，第一散热器、第二散热器之间设有第一联接管、第二联接管；第一液体散热管道与第二液体散热管道通过第一联接管、第二联接管形成一个循环回路。Its further technical solution is: the first radiator and the second radiator are respectively provided with a first liquid heat dissipation pipe and a second liquid heat dissipation pipe, and a first connection is provided between the first radiator and the second radiator. pipe, the second connecting pipe; the first liquid cooling pipe and the second liquid cooling pipe form a circulation loop through the first connecting pipe and the second connecting pipe.

其进一步技术方案为：所述的循环回路中设有水或冰晶液。Its further technical solution is: water or ice crystal liquid is provided in the circulation loop.

其进一步技术方案为：所述的第一联接管设于循环回路的最上方，第二联接管设于循环回路的最下方，所述的第一液体散热管道、第二液体散热管道均设有斜上的下通道，斜上的方向向于散热器的外侧。Its further technical solution is: the first connecting pipe is arranged at the top of the circulation loop, the second connecting pipe is arranged at the bottom of the circulation loop, and the first liquid heat dissipation pipe and the second liquid heat dissipation pipe are provided with The inclined lower passage is directed toward the outside of the radiator.

其进一步技术方案为：还包括与控制器联接的指示灯。Its further technical scheme is: it also includes an indicator light connected with the controller.

本发明与现有技术相比的有益效果是：本发明设有二组LED灯珠，并为每组LED灯珠各自配置有一个散热器，通过温度传感器检测每组LED灯珠的基板温度，当检测到的温度高于设定温度时，能通过继电器将电源切换至另外一组LED灯珠，通过二组LED灯珠轮流工作，实现LED灯的长时间工作，有利保证LED灯在不同工作环境下，其工作温度能始终低于设定温度，有利提高LED灯的使用寿命。另外还在散热器设有液体散热管道，通过二个联接管将二个散热器的液体散热管道串联成一个循环回路，从而使得不工作的那一组LED灯珠的散热器能充当辅助散热器，并且可以进一步利用由硼砂等材料制成的冰晶液体充当散热用的液体，有利提高散热效率。本发明具有双散热结构的LED发光装置特别适合用于大功率的工矿灯等等之类的LED灯产品。Compared with the prior art, the present invention has the beneficial effects that: the present invention is provided with two groups of LED lamp beads, and each group of LED lamp beads is equipped with a heat sink, and the substrate temperature of each group of LED lamp beads is detected by a temperature sensor. When the detected temperature is higher than the set temperature, the power supply can be switched to another group of LED lamp beads through the relay, and the two groups of LED lamp beads can work in turn to realize the long-term work of the LED lamp, which is beneficial to ensure that the LED lamp works in different ways. Under the environment, its working temperature can always be lower than the set temperature, which is beneficial to improve the service life of the LED lamp. In addition, the radiator is equipped with a liquid heat dissipation pipe, and the liquid heat dissipation pipes of the two radiators are connected in series to form a circulation loop through two connecting pipes, so that the radiator of the non-working group of LED lamp beads can act as an auxiliary radiator , and can further use the ice crystal liquid made of materials such as borax as the liquid for heat dissipation, which is beneficial to improve the heat dissipation efficiency. The LED lighting device with double heat dissipation structure of the present invention is especially suitable for LED lamp products such as high-power industrial and mining lamps and the like.

下面结合附图和具体实施例对本发明作进一步描述。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

附图说明Description of drawings

图1是本发明具有双散热结构的LED发光装置具体实施例的剖面示意图；1 is a schematic cross-sectional view of a specific embodiment of an LED lighting device with a double heat dissipation structure according to the present invention;

图2是本发明具有双散热结构的LED发光装置具体实施例的电路方框图；Fig. 2 is a circuit block diagram of a specific embodiment of an LED lighting device with a double heat dissipation structure in the present invention;

图3是本发明具有双散热结构的LED发光装置另一具体实施例的电路方框图。Fig. 3 is a circuit block diagram of another specific embodiment of the LED lighting device with double heat dissipation structure according to the present invention.

附图标记说明Explanation of reference signs

1灯体11灯罩1lamp body 11 lampshade

21第一组LED灯珠           22第二组LED灯珠21 The first group ofLED lamp beads 22 The second group of LED lamp beads

31第一散热器              311第一液体散热管道31 Thefirst radiator 311 The first liquid cooling pipe

32第二散热器              321第二液体散热管道32 Thesecond radiator 321 The second liquid cooling pipe

312下通道                 322下通道312lower channels 322 lower channels

41第一基板                42第二基板41first substrate 42 second substrate

5电源电路                 6控制器5 power supply circuit 6 controller

61指示灯                  7继电器61 Indicator lights 7 Relays

81第一温度传感器          82第二温度传感器81 first temperature sensor 82 second temperature sensor

91第一联接管              92第二联接管91 First connecting pipe 92 Second connecting pipe

33散热翅片33 cooling fins

具体实施方式Detailed ways

为了更充分理解本发明的技术内容，下面结合具体实施例和说明书附图(附图仅通过示意图表示本发明的结构，其形状、大小、比例与实际应用时是有所不同的)对本发明的技术方案进一步介绍和说明，但不局限于此。In order to fully understand the technical content of the present invention, below in conjunction with specific embodiment and description accompanying drawing (accompanying drawing only shows the structure of the present invention by schematic diagram, and its shape, size, proportion are different from actual application) to the present invention The technical solution is further introduced and explained, but not limited thereto.

如图1和图2所示，本发明具有双散热结构的LED发光装置，包括灯体1，灯体1设有二组LED灯珠，分别为第一组LED灯珠21和第二组LED灯珠22；灯体1向后延伸设有二个散热器，分别为对应于第一组LED灯珠21的第一散热器31和对应于第二组LED灯珠22的第二散热器32。第一散热器31和第二散热器32均为设有散热翅片33的金属散热器，优先采用铝散热器。还包括用于固定第一组LED灯珠21的第一基板41和用于固定第二组LED灯珠22的第二基板42。还包括电源电路5、与电源电路5联接的控制器6、与控制器6联接的继电器7，继电器7设有分别与第一组LED灯珠21、第二组LED灯珠22联接的二组触点；还包括与控制器6联接的第一温度传感器81、第二温度传感器82，第一温度传感器81设于第一基板41上，第二温度传感器82设于第二基板42上。其中的第一基板、第二基板优先采用铝基板。灯体1前端还设有灯罩11。As shown in Figure 1 and Figure 2, the LED lighting device with double heat dissipation structure of the present invention includes a lamp body 1, and the lamp body 1 is provided with two groups of LED lamp beads, which are respectively the first group ofLED lamp beads 21 and the second group of LED lampbeads Lamp beads 22; the lamp body 1 is extended backward with two radiators, respectively thefirst radiator 31 corresponding to the first group ofLED lamp beads 21 and thesecond radiator 32 corresponding to the second group ofLED lamp beads 22 . Both thefirst radiator 31 and thesecond radiator 32 are metal radiators provided withcooling fins 33 , preferably aluminum radiators. It also includes afirst substrate 41 for fixing the first group ofLED lamp beads 21 and asecond substrate 42 for fixing the second group ofLED lamp beads 22 . It also includes a power supply circuit 5, a controller 6 connected to the power supply circuit 5, and a relay 7 connected to the controller 6. The relay 7 is provided with two sets of lamp beads connected to the first group ofLED lamp beads 21 and the second group ofLED lamp beads 22 respectively. The contacts also include a first temperature sensor 81 and a second temperature sensor 82 connected to the controller 6 , the first temperature sensor 81 is set on thefirst substrate 41 , and the second temperature sensor 82 is set on thesecond substrate 42 . The first substrate and the second substrate are preferably aluminum substrates. Alampshade 11 is also provided at the front end of the lamp body 1 .

当第一组LED灯珠的基板温度超出设定温度时，控制器接收到该检测温度之后会输出一个控制信号给继电器，继电器得电工作，切换其导通的触点，使第一组LED灯珠掉电不工作，第二组LED灯珠得电工作，为使二组LED灯珠在切换过程中不影响照明，可以与第一组LED灯珠、第二组LED灯珠分别并联有电容，通过电容为LED灯珠供电，同时新供电的LED灯珠也立刻启动工作。When the substrate temperature of the first group of LED lamp beads exceeds the set temperature, the controller will output a control signal to the relay after receiving the detected temperature. The lamp beads do not work when the power is off, and the second group of LED lamp beads are powered on to work. In order to prevent the second group of LED lamp beads from affecting the lighting during the switching process, they can be connected in parallel with the first group of LED lamp beads and the second group of LED lamp beads. Capacitor, the LED lamp bead is powered by the capacitor, and the newly powered LED lamp bead also starts working immediately.

作为本发明的进一步创新，可以在第一散热器31、第二散热器32内各设有第一液体散热管道311、第二液体散热管道321，第一散热器31、第二散热器32之间设有第一联接管91、第二联接管92；第一液体散热管道311与第二液体散热管道321通过第一联接管91、第二联接管92形成一个循环回路。在循环回路中可以设有水或冰晶液。冰晶液可以采用如下的重量比的成份制成：六水氯化钙60份，八水过氧化锶2份，纤维素(或黏土)10份，乙二醇适量，水60份，也可以采用如下的重量比的成份制成：无水硫酸钠100份，水150份，甘油1份，硼砂1份。其中，第一联接管91设于循环回路的最上方，第二联接管92设于循环回路的最下方，第一液体散热管道311、第二液体散热管道321均设有斜上的下通道312、322，斜上的方向向于散热器的外侧(斜向上的部分由于更接近LED灯珠，受热之后可以形成循环回路的流动)。为了便于用户了解LED灯的状态是否正常，比如其散热温度是否正常，可以增加一个与控制器6联接的指示灯61，以便告诉用户，LED灯目前处于什么状态。其中指示灯优先采用双色指示灯。As a further innovation of the present invention, a first liquidheat dissipation pipe 311 and a second liquidheat dissipation pipe 321 can be respectively provided in thefirst heat sink 31 and thesecond heat sink 32, and between thefirst heat sink 31 and the second heat sink 32 A first connectingpipe 91 and a second connecting pipe 92 are arranged between them; the firstliquid cooling pipe 311 and the secondliquid cooling pipe 321 form a circulation loop through the first connectingpipe 91 and the second connecting pipe 92 . Water or ice crystal liquid can be provided in the circulation loop. Ice crystal liquid can adopt the composition of following weight ratio to make: 60 parts of calcium chloride hexahydrate, 2 parts of strontium peroxide octahydrate, 10 parts of cellulose (or clay), appropriate amount of ethylene glycol, 60 parts of water, also can adopt The following ingredients by weight are prepared: 100 parts of anhydrous sodium sulfate, 150 parts of water, 1 part of glycerin, and 1 part of borax. Among them, the first connectingpipe 91 is arranged at the top of the circulation loop, the second connecting pipe 92 is arranged at the bottom of the circulation loop, and the first liquidheat dissipation pipe 311 and the second liquidheat dissipation pipe 321 are provided with an inclinedlower channel 312 , 322, the oblique upward direction is toward the outside of the radiator (the oblique upward part is closer to the LED lamp bead, and can form a circulation loop flow after being heated). In order to facilitate the user to know whether the state of the LED lamp is normal, such as whether the heat dissipation temperature is normal, an indicator light 61 connected to the controller 6 can be added to tell the user what state the LED lamp is currently in. Among them, the indicator light preferably adopts a two-color indicator light.

上述实施例中，二组LED灯珠采用的是一个电源电路(即一个驱动电源)，也可以于其它实施例中，如图3所示，采用二个驱动电路分别为二组LED灯珠供电，继电器工作时采用即时接通、延时断开的触点，使得二组LED灯珠在切换时可以保持同时通电状态，从而不会出现光线很暗或不亮的状态。In the above-mentioned embodiment, the two groups of LED lamp beads use one power supply circuit (that is, one driving power supply), and it can also be used in other embodiments, as shown in Figure 3, using two driving circuits to supply power to the two groups of LED lamp beads respectively. , When the relay is working, it adopts the contacts of immediate connection and delayed disconnection, so that the two groups of LED lamp beads can maintain the power-on state at the same time when switching, so that there will be no state where the light is very dark or not bright.

于其它实施例中，当基板温度未超出设定温度，但某一组LED灯珠的工作时间超过设定时间时，也可以通过继电器切换至另外一组LED灯珠进行照明工作。In other embodiments, when the temperature of the substrate does not exceed the set temperature, but the working time of a certain group of LED lamp beads exceeds the set time, the relay can also be switched to another group of LED lamp beads for lighting work.

于其它实施例中，本发明具有双散热结构的LED发光装置的灯体内还可以设有聚光透镜。In other embodiments, the lamp body of the LED lighting device with double heat dissipation structure of the present invention may also be provided with a condenser lens.

综上所述，本发明设有二组LED灯珠，并为每组LED灯珠各自配置有一个散热器，通过温度传感器检测每组LED灯珠的基板温度，当检测到的温度高于设定温度时，能通过继电器将电源切换至另外一组LED灯珠，通过二组LED灯珠轮流工作，实现LED灯的长时间工作，有利保证LED灯在不同工作环境下，其工作温度能始终低于设定温度，有利提高LED灯的使用寿命。另外还在散热器设有液体散热管道，通过二个联接管将二个散热器的液体散热管道串联成一个循环回路，从而使得不工作的那一组LED灯珠的散热器能充当辅助散热器，并且可以进一步利用由硼砂等材料制成的冰晶液体充当散热用的液体，有利提高散热效率。本发明具有双散热结构的LED发光装置特别适合用于大功率的工矿灯等等之类的LED灯产品。To sum up, the present invention has two groups of LED lamp beads, and each group of LED lamp beads is equipped with a heat sink, and the substrate temperature of each group of LED lamp beads is detected by a temperature sensor. When the detected temperature is higher than the set When the temperature is fixed, the power supply can be switched to another group of LED lamp beads through the relay, and the two groups of LED lamp beads can work in turn to realize the long-term work of the LED lamp, which is beneficial to ensure that the working temperature of the LED lamp can be maintained in different working environments. The temperature is lower than the set temperature, which is beneficial to improve the service life of the LED lamp. In addition, the radiator is equipped with a liquid heat dissipation pipe, and the liquid heat dissipation pipes of the two radiators are connected in series to form a circulation loop through two connecting pipes, so that the radiator of the non-working group of LED lamp beads can act as an auxiliary radiator , and can further use the ice crystal liquid made of materials such as borax as the liquid for heat dissipation, which is beneficial to improve the heat dissipation efficiency. The LED lighting device with double heat dissipation structure of the present invention is especially suitable for LED lamp products such as high-power industrial and mining lamps and the like.

以上所述仅以实施例来进一步说明本发明的技术内容，以便于读者更容易理解，但不代表本发明的实施方式仅限于此，任何依本发明所做的技术延伸或再创造，均受本发明的保护。本发明的保护范围以权利要求书为准。The above description only uses examples to further illustrate the technical content of the present invention, so that readers can understand more easily, but it does not mean that the implementation of the present invention is limited to this, and any technical extension or re-creation according to the present invention is subject to protection of the invention. The protection scope of the present invention shall be determined by the claims.

Claims (10)

1. have the LED light-emitting device of two radiator structures, comprise lamp body, it is characterized in that described lamp body is provided with two groups of LED lamp pearls, be respectively first group of LED lamp pearl and second group of LED lamp pearl; Described lamp body extends back and is provided with two radiators, is respectively corresponding to first radiator of first group of LED lamp pearl with corresponding to second radiator of second group of LED lamp pearl.

2. the LED light-emitting device with two radiator structures according to claim 1 is characterized in that described first radiator and second radiator are the metal heat sink that is provided with radiating fin.

3. the LED light-emitting device with two radiator structures according to claim 1 is characterized in that also comprising first substrate that is used for fixing first group of LED lamp pearl and second substrate that is used for fixing second group of LED lamp pearl.

4. the LED light-emitting device with two radiator structures according to claim 3; It is characterized in that also comprising power circuit, the controller that connects with power circuit, the relay that connects with controller, described relay is provided with respectively and first group of LED lamp pearl, second group of two groups of contact that LED lamp pearl connects; Also comprise first temperature sensor, second temperature sensor that connect with controller, described first temperature sensor is located on first substrate, and described second temperature sensor is located on second substrate.

5. the LED light-emitting device with two radiator structures according to claim 4 is characterized in that described first group of LED lamp pearl, second group of LED lamp pearl all are parallel with electric capacity.

6. the LED light-emitting device with two radiator structures according to claim 1 is characterized in that described lamp body front end also is provided with lampshade.

7. the LED light-emitting device with two radiator structures according to claim 5; It is characterized in that respectively being provided with the first liquid hot channel, the second liquid hot channel in described first radiator, second radiator, be provided with first connecting tube, second connecting tube between first radiator, second radiator; The first liquid hot channel and the second liquid hot channel form a closed circuit through first connecting tube, second connecting tube.

8. the LED light-emitting device with two radiator structures according to claim 7 is characterized in that being provided with in the described closed circuit water or ice crystal liquid.

9. the LED light-emitting device with two radiator structures according to claim 7; It is characterized in that described first connecting tube is located at the top of closed circuit; The below of closed circuit is located in second connecting tube; Lower channel on the described first liquid hot channel, the second liquid hot channel are equipped with tiltedly, the direction on tiltedly is in the outside of radiator.

10. the LED light-emitting device with two radiator structures according to claim 7 is characterized in that also comprising the indicator lamp that connects with controller.

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