CN209084929U - Heat dissipation structure, air conditioner - Google Patents

Abstract

The utility model provides a heat radiation structure, air conditioner. The heat dissipation structure comprises a high-power component with a first heat dissipation fin and a cooling water storage component, wherein the first heat dissipation fin is connected with the cooling water storage component through a heat pipe, and the heat pipe can conduct heat on the first heat dissipation fin to cooling water in the cooling water storage component. According to the utility model discloses a heat radiation structure, air conditioner, the radiating efficiency is higher, and the reliability of air conditioner performance is guaranteed to the temperature rise that can the high-power device of effective control.

Description

Heat dissipation structure, air conditioner

technical field

The utility model belongs to the technical field of air conditioning, in particular to a heat dissipation structure and an air conditioner.

Background technique

With the continuous development of air-conditioning technology, high-power frequency conversion technology has been widely used in the field of air-conditioning due to its advantages of strong controllability, reduced power consumption, adjustable frequency and can be combined with intelligent control. Devices, especially high-power devices such as IPMs, IGBTs, diodes, and rectifier bridges, have the disadvantage of large heat generation. If these high-power devices are not dissipated in time, their temperature rise will continue to increase, which will adversely affect their performance parameters. influences.

At present, the main control method of most inverter air conditioners is controlled by the external machine. The heat dissipation method of the high-power devices of the controller mostly uses aluminum heat sinks, so that the heat sinks are exposed outside the electrical box, and the fans are used to dissipate heat. That is, the more common air cooling method, the heat dissipation efficiency of this method is affected by the temperature of the working environment of the internal machine and the temperature rise of its own working conditions, and the heat dissipation efficiency of the aluminum heat sink is generally low. Based on this, the present utility model is proposed.

Utility model content

Therefore, the technical problem to be solved by the present invention is to provide a heat dissipation structure and an air conditioner with higher heat dissipation efficiency, which can effectively control the temperature rise of high-power devices and ensure the reliability of the performance of the air conditioner.

In order to solve the above problems, the present invention provides a heat dissipation structure, which includes a high-power component with a first heat dissipation fin and a cooling water storage part, wherein the first heat dissipation fin and the cooling water storage part are connected by a heat pipe, The heat pipe can conduct heat on the first cooling fin to cooling water in the cooling water storage part.

Preferably, the cooling water storage component is configured as a box structure, the heat pipe has a first end, a second fin is provided on one side of the box structure, and the second fin is connected to the first end. connect.

Preferably, the box structure has an opening at a position corresponding to the installation of the second heat sink.

Preferably, a waterproof gasket is sandwiched between the box structure and the second heat sink.

Preferably, the cooling water storage component has a cooling water inlet and a cooling water outlet, and the cooling water inlet is located lower than the cooling water outlet.

Preferably, the cooling water storage part further has a drain.

Preferably, the water outlet and the cooling water outlet are integrated into one.

Preferably, the heat dissipation structure further includes a mounting bracket, and the cooling water storage component is mounted on the mounting bracket.

Preferably, the mounting bracket is made of insulating material.

Preferably, the heat pipe has a second end, and the first heat sink is connected to the second end through a heat conducting sheet.

The utility model also provides an air conditioner, which includes the above-mentioned heat dissipation structure.

The utility model provides a heat dissipation structure and an air conditioner. The heat pipe is used to transfer the heat of the high-power component to the cooling water storage component through the first heat dissipation fin, and then the heat of the cooling water is utilized. The water cooling effect dissipates heat for the high-power components, the heat dissipation efficiency is higher, the temperature rise of the high-power components can be significantly controlled, and the reliability of the performance of the air conditioner is guaranteed. More importantly, the heat transfer using this technical solution The latter water-cooling method can significantly reduce the requirement of water-proof and anti-leakage existing in directly water-cooling the first heat sink, making the solution simpler and more feasible.

Description of drawings

1 is a schematic three-dimensional structural diagram of a heat dissipation structure according to an embodiment of the present invention;

FIG. 2 is a schematic three-dimensional structural diagram of the second heat sink in FIG. 1 .

Reference numerals are indicated as:

1. The first heat sink; 2. The cooling water storage part; 21, The second heat sink; 22, The waterproof gasket; 23, The cooling water inlet; 24, The cooling water outlet; , heat pipe; 4, mounting bracket; 5, heat conduction sheet.

Detailed ways

Referring to FIG. 1 and FIG. 2 , according to an embodiment of the present invention, a heat dissipation structure is provided, including a high-power component with a first heat sink 1 and a cooling water storage component 2 . The first heat sink 1 It is connected with the cooling water storage part 2 through a heat pipe 3, and the heat pipe 3 can conduct the heat on the first heat sink 1 to the cooling water in the cooling water storage part 2. The aforementioned cooling water can be Using ordinary room temperature water, it is best to introduce the condensation water generated by the internal unit of the air conditioner into the cooling water storage part 2, which is more effective. In this technical solution, the heat pipe 3 is used to transfer the heat of the high-power component (not shown in the figure) to the cooling water storage part 2 through the first heat sink 1, and then the cooling water is used for the cooling The water cooling effect of water dissipates heat for the high-power components, and the heat dissipation efficiency is higher, which can significantly control the temperature rise of the high-power components and ensure the reliability of the performance of the air conditioner. The water-cooling method after heat transfer can significantly reduce the requirements for water-proofing and leakage-proofing of the first heat sink 1 directly by water-cooling, making the solution simpler and more feasible. The aforementioned heat pipe 3 can be, for example, a commercially available part whose size structure and thermal conductivity meet predetermined requirements, which can greatly reduce the design difficulty of the heat dissipation structure.

Preferably, the cooling water storage part 2 is configured as a box structure, the heat pipe 3 has a first end, and a second radiating fin 21 is provided on one side of the box structure, and the second radiating fin 21 is connected to the The first end is connected, and the heat dissipation area of the first end of the heat pipe 3 is further increased by the second heat sink 21. Furthermore, the second heat sink 21 is surrounded by the cooling water.

In order to further ensure that the temperature rise of the cooling water in the cooling water storage part 2 is relatively stable, preferably, the box structure has an opening corresponding to the installation position of the second cooling fin 21, that is, the second cooling fin 21 has an opening. The fins 21 are installed at the openings, so that one side of the second cooling fins 21 is in contact with the cooling water for heat exchange, and the other side is in contact with the outer side of the cooling water storage part 2 . This method is particularly suitable. When the temperature of the cooling water rises too high, the second heat sink 21 can transfer the heat from the heat pipe 3 or the cooling water to the outside air in time, so that the protection of the high-power components is higher and more efficient. Further, the side of the second heat sink 21 with the fins 26 is in contact with the cooling water. At this time, preferably, a waterproof gasket 22 is sandwiched between the box structure and the second heat sink 21 to prevent leakage and cooling at the installation and cooperation between the second heat sink 21 and the box structure water.

As mentioned above, preferably, the cooling water in the cooling water storage part 2 adopts the condensation water generated by the internal unit of the air conditioner. At this time, preferably, the cooling water storage part 2 has a cooling water inlet 23, a cooling The water outlet 24, the position of the cooling water inlet 23 is lower than the position of the cooling water outlet 24, the condensation water enters the cooling water storage part 2 through the cooling water inlet 23, and can pass through the cooling water outlet 24 outflow, effectively preventing the situation that the condensation water in the cooling water storage part 2 overflows back to the internal unit. In addition, because the position of the cooling water inlet 23 is lower than the position of the cooling water outlet The water will exchange heat with the second cooling fins 21 from a low to a high position, and the hot air generated during this process will also be discharged from the cooling water outlet 24 at a high position to prevent backflow to the air conditioner. Further, the cooling water storage part 2 also has a water outlet 25, which can facilitate the spraying of cooling water during the maintenance of the heat dissipation structure. Preferably, the water outlet 25 and the cooling water outlet 24 are combined as Integral, that is, the water outlet 25 and the cooling water outlet 24 are in pipeline communication, and the water outlet path is the same.

Preferably, the heat dissipation structure further includes a mounting bracket 4, and the cooling water storage component 2 is mounted on the mounting bracket 4. The mounting bracket 4 is made of insulating material. At this time, the mounting bracket 4 can be installed on the air conditioner. On the fan bracket of the external unit or other positions with smooth air circulation, the heat dissipation effect of the heat dissipation structure is further improved. Of course, the mounting bracket 4 using insulating materials can prevent high-power components from discharging through the heat dissipation structure. Safety accidents.

Preferably, the heat pipe 3 has a second end, and the first heat sink 1 and the second end are connected by a heat-conducting sheet 5 . More specifically, one side of the heat-conducting sheet 5 is welded to the heat pipe 3 as a The other side is connected to the first heat sink 1 in a detachable manner. Of course, one side of the heat-conducting sheet 5 can also be detachably connected to the heat pipe 3, and the heat-conducting sheet 5 is connected to the first heat sink 3. A heat sink 1 is welded into one body, so that the assembly process of the heat pipe 3 and the first heat sink 1 in the heat dissipation structure can be greatly facilitated.

According to an embodiment of the present invention, an air conditioner is also provided, including the above-mentioned heat dissipation structure, which has higher heat dissipation efficiency, can effectively control the temperature rise of high-power devices, and ensure the reliability of the performance of the air conditioner. More specifically, when the air conditioner is in the cooling mode, the internal unit of the air conditioner will generate condensation water, the condensation water will enter the cooling water storage part 2, and the condensation water at this time will be The temperature of the water is lower than the outside room temperature, so the condensation water and the heat dissipation structure conduct water cooling and heat exchange, thereby greatly improving the heat dissipation efficiency of the heat dissipation structure and controlling the temperature rise of high-power components; When the air conditioner is in the heating mode, when the cooling water storage part 2 has cooling water, the same heat exchange process as in the cooling mode will be performed, and when the cooling water in the cooling water storage part 2 is evaporated and exhausted, Then, the first heat sink 1 and the second heat sink 21 are used for air cooling or natural heat dissipation. At this time, due to the increased heat dissipation contact area, the heat dissipation effect will also be significantly better than the traditional one using the first heat sink 1 alone. Happening.

It can be easily understood by those skilled in the art that, on the premise of no conflict, the above advantageous manners can be freely combined and superimposed.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of protection. The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (11)

1. A heat dissipation structure, characterized by comprising a high-power component having a first heat sink (1), a cooling water storage part (2), the first heat sink (1) and the cooling water storage part (2) are connected by a heat pipe (3), the heat pipe (3) can conduct the heat on the first heat sink (1) to the cooling water in the cooling water storage part (2). 2. The heat dissipation structure according to claim 1, characterized in that, the cooling water storage part (2) is configured as a box structure, the heat pipe (3) has a first end, and one side of the box structure A second heat sink (21) is provided, and the second heat sink (21) is connected to the first end. 3. The heat dissipation structure according to claim 2, characterized in that, the box structure has an opening at a position corresponding to the installation of the second heat dissipation fin (21). 4. The heat dissipation structure according to claim 3, wherein a waterproof gasket (22) is sandwiched between the box structure and the second heat dissipation fin (21). 5. The heat dissipation structure according to claim 2, wherein the cooling water storage component (2) has a cooling water inlet (23) and a cooling water outlet (24), and the position of the cooling water inlet (23) is Below the position of the cooling water outlet (24). 6. The heat dissipation structure according to claim 5, characterized in that, the cooling water storage component (2) further has a water outlet (25). 7. The heat dissipation structure according to claim 6, characterized in that, the water outlet (25) and the cooling water outlet (24) are integrated into one. 8 . The heat dissipation structure according to claim 1 , further comprising a mounting bracket ( 4 ), and the cooling water storage component ( 2 ) is mounted on the mounting bracket ( 4 ). 9 . 9 . The heat dissipation structure according to claim 8 , wherein the mounting bracket ( 4 ) is made of insulating material. 10 . 10 . The heat dissipation structure according to claim 1 , wherein the heat pipe ( 3 ) has a second end, and the first heat dissipation fin ( 1 ) is connected to the second end through a heat conduction sheet ( 5 ). 11 . 11 . An air conditioner, comprising a heat dissipation structure, wherein the heat dissipation structure is the heat dissipation structure according to any one of claims 1 to 10 .