Compressor drive board cooling device and air conditioner

Abstract

The present invention provides a compressor drive board cooling device, comprising: a water receiving tray which is arranged below the heat exchanger of the air conditioner to collect the condensed water of the heat exchanger; a first delivery pipe which delivers the condensed water to the position where the compressor drive board is located to absorb the heat of the compressor drive board; and a second delivery pipe which returns the condensed water after heat absorption to the water receiving tray. The compressor drive board cooling device of the present invention dissipates heat from the compressor drive board without consuming the cold quantity of the refrigerant, uses the condensed water of the heat exchanger for cooling, fully utilizes the cold quantity of the condensed water, and at the same time does not need to add connecting pipes outside the unit, maintaining the compactness of the system structure. By arranging a partition plate, it is avoided that the condensed water returning to the water receiving tray is mixed with the condensed water entering the water pump on the same side, resulting in loss of cold quantity.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and particularly relates to a compressor drive board cooling device and an air conditioner. Background Art

[0002] In a computer room air conditioner, the evaporator condensate contains a large amount of cold energy. However, in actual applications, it is often directly discharged without being reasonably utilized. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that the cold energy of the evaporator condensate in a computer room air conditioner is not reasonably utilized, and thus a compressor drive board cooling device and an air conditioner are provided.

[0004] To solve the above problems, the present invention provides a compressor drive board cooling device, including:

[0005] A water receiving tray, which is arranged below the heat exchanger of the air conditioner to collect the condensate of the heat exchanger;

[0006] A first delivery pipe, which delivers the condensate to the location of the compressor drive board to absorb the heat of the compressor drive board;

[0007] A second delivery pipe, which returns the heat-absorbed condensate to the water receiving tray.

[0008] The object of the present invention and the technical problems to be solved can be further achieved by the following technical measures.

[0009] Preferably, the water-containing area in the water receiving tray includes a return area and a delivery area. The delivery area is communicated with the first delivery pipe, and the return area is communicated with the second delivery pipe.

[0010] Preferably, the water receiving tray is provided with a delivery port and a return port. The delivery port is arranged in the delivery area, and the return port is arranged in the return area. When the condensate flows from the return port to the delivery port in the water receiving tray, it absorbs the cold energy of the heat exchanger again.

[0011] Preferably, the water receiving tray is provided with a partition member, which divides the water-containing area in the water receiving tray into a return area and a delivery area.

[0012] Preferably, the return area is arranged on the leeward side of the heat exchanger, and the delivery area is arranged on the windward side of the heat exchanger. The return area and the delivery area are separated along the position of the heat exchanger, and the condensate flows around the heat exchanger.

[0013] Preferably, a cold plate is attached to the compressor drive board. The cold plate includes a heat exchange tube, and both ends of the heat exchange tube are respectively communicated with the first delivery pipe and the second delivery pipe.

[0014] Preferably, the first delivery pipe is a rubber hose, and / or the second delivery pipe is a rubber hose, and / or the heat exchange tube is a copper pipe.

[0015] Preferably, heat dissipation silica gel is filled between the compressor drive board and the cold plate.

[0016] Preferably, a water pump is provided on the first delivery pipe, and / or the water receiving tray is further provided with an overflow port.

[0017] An air conditioner adopts a compressor drive board cooling device.

[0018] The compressor drive board cooling device and the air conditioner provided by the present invention at least have the following beneficial effects:

[0019] The compressor drive board cooling device of the present invention dissipates heat from the compressor drive board without consuming the cold energy of the refrigerant. It uses the condensed water of the heat exchanger for cooling, fully utilizes the cold energy of the condensed water, and at the same time does not need to add connecting pipes outside the unit, maintaining the compactness of the system structure. By setting the partition plate, it is avoided that the condensed water returning to the water receiving tray is mixed with the condensed water entering the water pump on the same side, resulting in loss of cold energy. Description of the Drawings

[0020] Figure 1 is a schematic structural view of the compressor drive board cooling device according to an embodiment of the present invention Figure 1 ;

[0021] Figure 2 is a schematic structural view of the compressor drive board cooling device according to an embodiment of the present invention Figure 2 .

[0022] The reference numerals are shown as:

[0023] 1. Compressor drive board; 2. Water receiving tray; 3. Heat exchanger; 4. First delivery pipe; 5. Second delivery pipe; 6. Return area; 7. Delivery area; 8. Delivery port; 9. Return port; 10. Partition member; 11. Cold plate; 12. Heat exchange tube; 13. Water pump. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Combined with Figures 1 to 2As shown in the figure, an embodiment of the present invention provides a cooling device for a compressor drive board, including: a water receiving tray 2, which is arranged below the heat exchanger 3 of the air conditioner to collect the condensed water of the heat exchanger 3; a first delivery pipe 4, which delivers the condensed water to the location where the compressor drive board 1 is located to absorb the heat of the compressor drive board 1; and a second delivery pipe 5, which returns the heat-absorbed condensed water to the water receiving tray 2.

[0026] In the existing computer room air conditioner field, the compressor drive board is generally cooled by refrigerant or by using external independent water supply for cooling. The former will occupy the system refrigerant and reduce the system refrigeration performance, and the latter requires the use of a longer connecting pipe, and the connecting pipe is arranged outside the unit, which is easily affected by the surrounding environment. On the other hand, due to the large weight of the compressor, for safety reasons, it is generally fixed to the base of the indoor unit with bolts to prevent shaking, and the electrical box is generally arranged on the upper side plate in order to prevent the condensed water from dripping down and the return air from directly blowing and interfering. In the pipeline layout of the computer room air conditioner, the liquid pipe of the refrigerant passes through the outdoor condenser and enters the indoor unit, and rises to a relatively high height to cool the compressor drive board, and then descends to a relatively low height for refrigeration cycle. In terms of the pipe laying method, the one-up-and-one-down copper pipe layout increases the total pipe length, resulting in an increase in the frictional resistance along the way, and the cost of the copper pipe also increases.

[0027] The cooling device for the compressor drive board of the present application dissipates heat from the compressor drive board without consuming the cold quantity of the refrigerant, uses the condensed water of the heat exchanger for cooling, makes full use of the cold quantity of the condensed water, and at the same time does not need to add a connecting pipe outside the unit to maintain the compactness of the system structure.

[0028] Preferably, the temperature of the condensed water after heat exchange with the drive board rises. After flowing back to the water receiving tray 2, if it is directly sucked in for the next cooling cycle, it will affect the cooling effect due to the relatively high water temperature. Therefore, the water-containing area in the water receiving tray 2 includes a return area 6 and a delivery area 7. The water receiving tray 2 is provided with a partition member 10, and the partition member 10 divides the water-containing area in the water receiving tray 2 into a return area 6 and a delivery area 7. The delivery area 7 is communicated with the first delivery pipe 4, the return area 6 is communicated with the second delivery pipe 5, the water receiving tray 2 is provided with a delivery port 8 and a return port 9. The delivery port 8 is arranged in the delivery area 7, and the return port 9 is arranged in the return area 6. During the process of the condensed water flowing from the return port 9 to the delivery port 8 in the water receiving tray 2, it absorbs the cold quantity of the heat exchanger 3 again. This embodiment can separate the relatively high-temperature condensed water returned to the water receiving tray 2 from the existing relatively low-temperature condensed water in the water receiving tray 2 to ensure that the cold quantity of the condensed water participating in the cooling is sufficient.

[0029] On the other hand, the condensed water flows back to the water receiving tray 2 after heat exchange. Since the amount of condensed water in the water receiving tray 2 is not fixed, recycling the heat-exchanged condensed water can effectively prevent the insufficient condensed water from causing poor heat dissipation of the compressor drive board.

[0030] Preferably, considering that there is more cooling capacity on the leeward side of the heat exchanger 3, the return area 6 is arranged on the leeward side of the heat exchanger 3. The condensate water with a higher temperature after heat exchange flows to this area, quickly absorbs the cooling capacity, reduces the temperature. The conveying area 7 is arranged on the windward side of the heat exchanger 3. The return area 6 and the conveying area 7 are separated along the position of the heat exchanger 3. The condensate water flows around the heat exchanger 3, flows from the return area 6 to the conveying area 7, and then flows out from the conveying port 8.

[0031] Preferably, a cold plate 11 is attached to the compressor drive board 1, and heat dissipation silica gel is filled between the compressor drive board 1 and the cold plate 11. The cold plate 11 includes a heat exchange tube 12, and both ends of the heat exchange tube 12 are respectively communicated with a first conveying tube 4 and a second conveying tube 5.

[0032] Preferably, the first conveying tube 4 is a rubber tube, and / or the second conveying tube 5 is a rubber tube, and / or the heat exchange tube 12 is a copper tube.

[0033] Preferably, a water pump 13 is provided on the first conveying tube 4, and / or the water receiving tray 2 is further provided with an overflow port. When the water volume is too large, it is discharged through the overflow port.

[0034] For the cooling device of the compressor drive board 1 in this embodiment, when the computer room air conditioner is refrigerating, since the temperature on the surface of the evaporator is lower than the dew point temperature of the surrounding air, the surrounding air condenses into liquid water, flows downward along the evaporator wall surface, enters the water receiving tray 2, collects the condensate water in the water receiving tray 2. Under the pressure supply of the water pump 13, the condensate water flows along the pipeline to cool the compressor drive board 1. The cooled condensate water returns to the water receiving tray 2 along the pipeline. A partition member 10 is arranged in the water receiving tray 2, so that the condensate water with a higher temperature returning to the water receiving tray 2 is separated from the condensate water entering the water pump 13, avoiding the loss of cooling capacity.

[0035] In the water circuit cycle, since the cooling working medium of the compressor drive board 1 is condensate water, some pipelines use rubber tubes and some pipelines use copper tubes. On the premise of ensuring a large heat exchange quantity, the usage amount of copper tubes is reduced, saving costs. At the same time, since the refrigerant no longer needs to cool the compressor drive board 1, the cooling capacity loss of the refrigeration cycle is reduced, and the refrigeration performance of the unit is improved to a certain extent. In addition, since condensate water is utilized, when designing the system, the return air temperature and the supply air temperature can be made lower, and at the same time, the air volume is reduced to obtain the same cooling capacity. Such a practice can reduce the power consumption of the fan and increase the COP of the whole machine.

[0036] An air conditioner adopts a cooling device for a compressor drive board.

[0037] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned advantageous ways can be freely combined and superimposed.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and variations can still be made, and these improvements and variations should also be regarded as within the protection scope of the present invention.

Claims

1. A compressor drive board cooling device, characterized in that, it includes: A water receiving tray (2), which is arranged below the heat exchanger (3) of the air conditioner to collect the condensed water of the heat exchanger (3); A first delivery pipe (4), which delivers the condensed water to the position where the compressor drive board (1) is located to absorb the heat of the compressor drive board (1); A second delivery pipe (5), which returns the heat-absorbed condensed water to the water receiving tray (2); Wherein, the water-containing area in the water receiving tray (2) includes a return area (6) and a delivery area (7); the return area (6) is arranged on the leeward side of the heat exchanger (3), and the delivery area (7) is arranged on the windward side of the heat exchanger (3). The return area (6) and the delivery area (7) are separated along the position of the heat exchanger (3), and the condensed water flows around the heat exchanger (3).

2. The compressor drive board cooling device according to claim 1, characterized in that, The delivery area (7) is communicated with the first delivery pipe (4), and the return area (6) is communicated with the second delivery pipe (5).

3. The compressor drive board cooling device according to claim 2, characterized in that, The water receiving tray (2) is provided with a delivery port (8) and a return port (9). The delivery port (8) is arranged in the delivery area (7), and the return port (9) is arranged in the return area (6). When the condensed water flows from the return port (9) to the delivery port (8) in the water receiving tray (2), it absorbs the cold of the heat exchanger (3) again.

4. The compressor drive board cooling device according to claim 2, characterized in that, The water receiving tray (2) is provided with a partition member (10), and the partition member (10) divides the water-containing area in the water receiving tray (2) into a return area (6) and a delivery area (7).

5. The compressor drive board cooling device according to claim 1, characterized in that, A cold plate (11) is attached to the compressor drive board (1). The cold plate (11) includes a heat exchange pipe (12), and both ends of the heat exchange pipe (12) are respectively communicated with the first delivery pipe (4) and the second delivery pipe (5).

6. The compressor drive board cooling device according to claim 5, characterized in that, The first delivery pipe (4) is a rubber pipe, and / or the second delivery pipe (5) is a rubber pipe, and / or the heat exchange pipe (12) is a copper pipe.

7. The compressor drive board cooling device according to claim 5, characterized in that, Thermal conductive silica gel is filled between the compressor drive board (1) and the cold plate (11).

8. The compressor drive board cooling device according to any one of claims 1-7, characterized in that, A water pump (13) is provided on the first delivery pipe (4), and / or the water receiving tray (2) is further provided with an overflow port.

9. An air conditioner, characterized in that, It adopts the compressor drive board cooling device according to any one of claims 1-8.

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