Multi-medium heat exchanger for water cooling unit

Abstract

The utility model relates to the technical field of heat exchangers, and specifically to a multi-media heat exchanger for a water-cooled unit, comprising a first side plate, a second side plate, a first pipe, and a second pipe; a first cavity is arranged inside the first side plate, and a second cavity is arranged inside the second side plate; the first ends of the first pipe and the second pipe extend into the first cavity, and the second ends of the first pipe and the second pipe extend into the second cavity; the first pipe and the second pipe are connected to external equipment through the first cavity and / or the second cavity, and in the first cavity and the second cavity, the first pipe and the second pipe are not connected to each other; through the arrangement of the first cavity and the second cavity in the present application, independent flow channels can be provided for the refrigerant and the coolant, respectively, so as to better meet the heat dissipation requirements of the battery pack under the low temperature working conditions of the whole vehicle. At the same time, the functions of the condenser and the radiator are combined, so that the overall structure is simpler, the occupied space is saved, and the production is convenient, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a multi-medium heat exchanger for a water cooling unit. Background Art

[0002] With the increasing shortage of traditional fossil energy resources, the intensification of the global greenhouse effect and domestic environmental pollution, the country has put forward new requirements for vehicle energy conservation and emission reduction, and has made great policy support for new energy vehicles. It has become the main trend that new energy vehicles will gradually replace traditional fuel vehicles. Due to the use conditions of commercial electric vehicles, the use in low temperature environments must be fully considered in terms of thermal management.

[0003] The cooling temperature range of water-cooling units on the market is mostly -10°-55°, which cannot meet the heat dissipation requirements of the battery pack under low-temperature conditions of the whole vehicle. For this reason, some water-cooling units add radiators inside to meet the heat dissipation requirements of the battery pack under low-temperature conditions of the whole vehicle, but the internal structure is complex, the types of parts are many, the production cycle is long, and the cost is high. Utility Model Content

[0004] In view of the above problems existing in the prior art, the utility model provides a multi-medium heat exchanger for a water cooling unit.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A multi-media heat exchanger for a water cooling unit, comprising a first side plate, a second side plate, a first pipeline and a second pipeline;

[0007] A first cavity is disposed inside the first side plate, and a second cavity is disposed inside the second side plate;

[0008] The first ends of the first pipe and the second pipe extend into the first cavity, and the second ends of the first pipe and the second pipe extend into the second cavity;

[0009] The first pipeline and the second pipeline are connected to external equipment through the first cavity and / or the second cavity, and in the first cavity and the second cavity, the first pipeline and the second pipeline are not connected to each other.

[0010] Preferably, a first partition is provided in the first cavity, and the first partition divides the first cavity into a first chamber and a second chamber;

[0011] The first end of the first pipe extends into the first chamber; the first end of the second pipe extends into the second chamber.

[0012] Preferably, a first through hole is provided on the first side plate, and the first end of the first pipe extends into the first chamber through the first through hole.

[0013] Preferably, a second through hole is provided on the first side plate, and a third through hole is provided on the first partition plate; the first end of the second pipe extends into the second chamber through the second through hole and the third through hole.

[0014] Preferably, a second partition is provided in the second cavity, and the second partition divides the second cavity into a third cavity and a fourth cavity;

[0015] The second end of the first pipe extends into the third chamber; the second end of the second pipe extends into the fourth chamber.

[0016] Preferably, a first through hole is provided on the second side plate, and the second end of the first pipe extends into the third chamber through the first through hole.

[0017] Preferably, a second through hole is provided on the second side plate, and a third through hole is provided on the second partition plate; the second end of the second pipe extends into the fourth chamber through the second through hole and the third through hole.

[0018] Preferably, the number of the first pipeline and the number of the second pipeline are both plural, and the first pipeline and the second pipeline are staggered with each other;

[0019] Heat dissipation fins are arranged between the circumferential side walls of the first pipe and the second pipe.

[0020] Preferably, the first side plate is provided with a first inlet, a second inlet and a first outlet; the second side plate is provided with a second outlet;

[0021] The first inlet and the first outlet are in communication with the first chamber; the second inlet is in communication with the second chamber, and the second outlet is in communication with the fourth chamber.

[0022] Preferably, at least one third partition is provided in the first pipe, and the third partition extends along the length direction of the first pipe.

[0023] The utility model has at least the following beneficial effects:

[0024] Through the arrangement of the first cavity and the second cavity in the present application, the first pipe and the second pipe are not connected to each other in the first cavity and the second cavity, and can provide independent flow channels for the refrigerant and the coolant respectively. When the ambient temperature is higher than -10 degrees, the heat dissipation of the battery pack is achieved through the first pipe in combination with the refrigerant, and when the ambient temperature is lower than -10 degrees, the heat dissipation of the battery pack is achieved through the second pipe in combination with the coolant, which can better meet the heat dissipation requirements of the battery pack under low temperature conditions of the whole vehicle. At the same time, through the arrangement of the first cavity and the second cavity, the functions of the condenser and the radiator are combined, making the overall structure simpler, saving space, and facilitating production and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a multi-media heat exchanger in some embodiments of the present application is shown;

[0026] Figure 2 A front cross-sectional view of a multi-media heat exchanger in some embodiments of the present application is shown;

[0027] Figure 3 A three-dimensional cross-sectional view of a multi-media heat exchanger in some embodiments of the present application is shown;

[0028] Figure 4 Shows Figure 3 A partial enlarged view of the middle A;

[0029] Figure 5 Shows Figure 3 A partial enlarged view of point B in the middle;

[0030] Figure 6 A schematic diagram showing a heat dissipation fin disposed between a first pipe and a second pipe in some embodiments of the present application is shown.

[0031] The parts indicated by the numbers in the accompanying drawings are as follows:

[0032] 100, first side plate; 110, first cavity; 111, first partition; 111a, third through hole; 112, first chamber; 113, second chamber; 120, first through hole; 130, second through hole; 140, first inlet; 150, first outlet; 160, second inlet; 200, second side plate; 210, second cavity; 211, second partition; 211a, third through hole; 212, third chamber; 213, fourth chamber; 220, first through hole; 230, second through hole; 240, second outlet; 300, first pipe; 310, third partition; 320, channel; 400, second pipe; 500, heat sink fin. DETAILED DESCRIPTION

[0033] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0034] like Figure 1-5 As shown, the present embodiment provides a multi-media heat exchanger for a water-cooled unit, which includes a first side plate 100 and a second side plate 200 arranged opposite to each other, a first cavity 110 is formed inside the first side plate 100, and a second cavity 210 is formed inside the second side plate 200; a first pipe 300 and a second pipe 400 are also arranged between the first side plate 100 and the second side plate 200, wherein a first end of the first pipe 300 is connected to the first side plate 100 and communicates with the first cavity 110, a second end of the first pipe 300 is connected to the second side plate 200 and communicates with the second cavity 210, a first end of the second pipe 400 is connected to the first side plate 100 and communicates with the first cavity 110, and a second end of the second pipe 400 is connected to the second side plate 200 and communicates with the second cavity 210.

[0035] Furthermore, in the first cavity 110 , the first end of the first pipe 300 and the first end of the second pipe 400 are not connected to each other; in the second cavity 210 , the second end of the first pipe 300 and the second end of the second pipe 400 are not connected to each other.

[0036] When used, the multi-media heat exchanger of this embodiment is connected to an external device through the first side plate 100 and the second side plate 200, so that the first cavity 110 and the second cavity 210 can be connected to the external device, thereby realizing the connection between the first pipe 300 and the second pipe 400 and the external device. Taking the application of the multi-media heat exchanger of this embodiment to the scene of heat dissipation of the battery pack as an example, the external plate heat exchanger and the circulation pipe connected to the battery pack are connected to the multi-media heat exchanger of this embodiment, so that the plate heat exchanger is connected to the first pipe 300, and the circulation pipe is connected to the second pipe 400.

[0037] When the ambient temperature is higher than -10 degrees, refrigerant is injected into the first pipe 300, and the refrigerant can flow in the first cavity 110, the first pipe 300 and the second cavity 210, and then exchange heat with the external environment. After that, the refrigerant can flow into the plate heat exchanger, and heat exchange is achieved between the refrigerant and the coolant flowing out of the battery pack in the plate heat exchanger to adjust the temperature of the coolant and thus adjust the temperature of the battery pack.

[0038] When the ambient temperature is lower than -10 degrees, the coolant in the battery pack is injected into the second pipe 400, so that the coolant can flow in the first cavity 110, the second pipe 400 and the second cavity 210, and then exchange heat with the external environment, and then the coolant is transported back to the battery pack to adjust the temperature of the battery pack.

[0039] It is worth mentioning that, through the arrangement of the first cavity 110 and the second cavity 210 in the present embodiment, the first pipe 300 and the second pipe 400 are not connected to each other in the first cavity 110 and the second cavity 210, and can provide independent flow channels for the refrigerant and the coolant respectively. When the ambient temperature is higher than -10 degrees, the heat dissipation of the battery pack is achieved through the first pipe 300 in combination with the refrigerant. When the ambient temperature is lower than -10 degrees, the heat dissipation of the battery pack is achieved through the second pipe 400 in combination with the coolant, which can better meet the heat dissipation requirements of the battery pack under low temperature conditions of the whole vehicle.

[0040] At the same time, by providing the first cavity 110 and the second cavity 210, the functions of the condenser and the radiator are combined, making the overall structure simpler, saving space, facilitating production, and reducing costs.

[0041] In some embodiments, a first partition 111 is disposed in the first cavity 110, and the first partition 111 divides the first cavity 110 into two independent spaces, namely a first chamber 112 and a second chamber 113. Further, during assembly, the first end of the first pipe 300 is extended into the first chamber 112, and the first end of the second pipe 400 is extended into the second chamber 113.

[0042] Since the first chamber 112 and the second chamber 113 are independent of each other, when in use, the refrigerant flows in the first pipe 300 and the first chamber 112, and the cooling liquid flows in the second pipe 400 and the second chamber 113. Therefore, the refrigerant and the cooling liquid can have independent flow paths without interfering with each other.

[0043] In some embodiments, the first side plate 100 is provided with a first through hole 120 communicating with the first chamber 112. During installation, the first end of the first pipe 300 is installed in the first through hole 120 to achieve communication between the first pipe 300 and the first chamber 112. Specifically, the installation of the first end of the first pipe 300 in the first through hole 120 can be achieved by bonding, welding, etc., and further, a sealing ring can be provided between the first pipe 300 and the first through hole 120 to prevent leakage of the refrigerant.

[0044] In some embodiments, the first side plate 100 is provided with a second through hole 130 communicating with the first chamber 112, and the first partition plate 111 is provided with a third through hole 111a communicating with the first chamber 112 and the second chamber 113. During installation, the first end of the second pipe 400 is passed through the second through hole 130 and extended into the third through hole 111a to achieve communication between the second pipe 400 and the second chamber 113. Specifically, the installation of the first end of the second pipe 400 in the second through hole 130 and the third through hole 111a can be achieved by bonding, welding, etc. Further, a sealing ring can be provided between the second pipe 400 and the second through hole 130 and between the second pipe 400 and the third through hole 111a to prevent leakage of the coolant and / or the refrigerant.

[0045] In some embodiments, a second partition 211 is disposed in the second cavity 210, and the second partition 211 divides the second cavity 210 into two independent spaces, namely the third cavity 212 and the fourth cavity 213. Further, during assembly, the second end of the first pipe 300 is extended into the third cavity 212, and the second end of the second pipe 400 is extended into the fourth cavity 213.

[0046] Since the third chamber 212 and the fourth chamber 213 are independent of each other, when in use, the refrigerant flows in the first pipe 300 and the third chamber 212, and the cooling liquid flows in the second pipe 400 and the fourth chamber 213. Therefore, the refrigerant and the cooling liquid can have independent flow paths without interfering with each other.

[0047] In some embodiments, the second side plate 200 is provided with a first through hole 220 communicating with the third chamber 212. During installation, the second end of the first pipe 300 is installed in the first through hole 220 to achieve communication between the first pipe 300 and the third chamber 212. Specifically, the installation of the second end of the first pipe 300 in the first through hole 220 can be achieved by bonding, welding, etc., and further, a sealing ring can be provided between the first pipe 300 and the first through hole 220 to prevent leakage of the refrigerant.

[0048] In some embodiments, the second side plate 200 is provided with a second through hole 230 communicating with the third chamber 212, and the second partition plate 211 is provided with a third through hole 211a communicating with the third chamber 212 and the fourth chamber 213. During installation, the second end of the second pipe 400 is passed through the second through hole 230 and extended into the third through hole 211a to achieve communication between the second pipe 400 and the fourth chamber 213. Specifically, the installation of the second end of the second pipe 400 in the second through hole 230 and the third through hole 211a can be achieved by bonding, welding, etc. Further, a sealing ring can be provided between the second pipe 400 and the second through hole 230 and between the second pipe 400 and the third through hole 211a to prevent leakage of the coolant and / or the refrigerant.

[0049] In some embodiments, a plurality of first pipes 300 and second pipes 400 are provided between the first side plate 100 and the second side plate 200. It is understandable that, by providing a plurality of first pipes 300, the total flow distance of the refrigerant in the multi-media heat exchanger of this embodiment can be preferably extended, so that the refrigerant passes through the plurality of first pipes 300 in sequence, and the heat dissipation of the refrigerant can be better realized, and the heat dissipation efficiency can be improved; similarly, by providing a plurality of second pipes 400, the total flow distance of the coolant in the multi-media heat exchanger of this embodiment can be preferably extended, so that the coolant passes through the plurality of second pipes 400 in sequence, and the heat dissipation of the coolant can be better realized, and the heat dissipation efficiency can be improved.

[0050] Combination Figure 6 As shown, in some embodiments, a heat sink 500 is provided between the first pipe 300 and the second pipe 400. Specifically, the heat sink 500 is respectively connected between adjacent first pipes 300 and second pipes 400, wherein the heat sink 500 has better thermal conductivity.

[0051] By setting the heat spreading fins in this embodiment, when a high temperature refrigerant flows through the first pipe 300, the heat of the refrigerant can be transferred to the heat dissipation fins 500 through the side wall of the first pipe 300. Since the heat dissipation fins 500 have a large outer surface, the heat dissipation efficiency can be improved. Similarly, when a high temperature coolant flows through the second pipe 400, the heat of the coolant can be transferred to the heat dissipation fins 500 through the side wall of the second pipe 400, thereby improving the heat dissipation efficiency. Furthermore, the heat dissipation fins 500 can also support the first pipe 300 and the second pipe 400, improve the stability of the overall structure, and when there is an external impact, the heat dissipation fins 500 can be deformed accordingly to improve safety.

[0052] In some embodiments, a third partition 310 is provided in the first pipe 300, and the third partition 310 is extended along the length direction of the first pipe 300. Under the action of the third partition 310, the interior of the first pipe 300 can be divided into multiple channels 320. When the refrigerant enters the first pipe 300, the multiple channels 320 can divert the refrigerant.

[0053] It is worth mentioning that after the multiple channels 320 divert the refrigerant, the contact area between the refrigerant and the first pipe 300 can be better increased, and the heat of the refrigerant can be better transferred to the first pipe 300 and the heat dissipation fins 500, thereby improving the heat dissipation efficiency of the refrigerant.

[0054] In some embodiments, a first inlet 140 and a first outlet 150 are provided on the first side plate 100, and both the first inlet 140 and the first outlet 150 are connected to the first chamber 112; further, a second inlet 160 is provided on the first side plate 100, and a second outlet 240 is provided on the second side plate 200, wherein the second inlet 160 is connected to the second chamber 113, and the second outlet 240 is connected to the fourth chamber 213.

[0055] The multi-media heat exchanger for a water-cooled unit of the present embodiment can be used in conjunction with a plate heat exchanger, a circulation pipe connected to the battery pack, and a pump body, taking the application of the multi-media heat exchanger of the present embodiment to the scenario of dissipating heat from a battery pack as an example.

[0056] During specific installation, the first inlet 140 and the first outlet 150 are connected to the plate heat exchanger, and the second inlet 160 and the second outlet 240 are connected to the circulation pipeline. In this embodiment, since the first inlet 140 is higher than the first outlet 150 and the second inlet 160 is higher than the second outlet 240, a pump body can be provided at both the first inlet 140 and the second inlet 160, and the refrigerant is transported to the first chamber 112 and the coolant is transported to the second chamber 113 through the operation of the pump body.

[0057] When the ambient temperature is higher than -10 degrees, the pump body transports the refrigerant to the first chamber 112, and the refrigerant fills the first chamber 112, the first pipe 300 and the third chamber 212. The refrigerant in the multi-media heat exchanger can flow in the first chamber 112, the first pipe 300 and the third chamber 212. During this process, when the refrigerant enters the first pipe 300, the refrigerant is cooled under the action of the first pipe 300 and the heat dissipation fins 500; it can be understood that while the pump body transports the refrigerant to the first chamber 112 through the first inlet 140, since the capacity of the multi-media heat exchanger is constant, the refrigerant in the multi-media heat exchanger will flow out to the plate heat exchanger through the first outlet 150, so that the refrigerant exchanges heat with the coolant of the battery pack in the plate heat exchanger to reduce the temperature of the coolant of the battery pack, so that the coolant of the battery pack can continue to cool the battery pack.

[0058] When the ambient temperature is lower than -10 degrees, the pump body transports the coolant of the battery pack to the second chamber 113 through the second inlet 160, and the coolant fills the second chamber 113, the second pipe 400 and the fourth chamber 213. The coolant in the multi-media heat exchanger can flow in the second chamber 113, the second pipe 400 and the fourth chamber 213. During this process, when the coolant enters the second pipe 400, the coolant is cooled under the action of the second pipe 400 and the heat dissipation fins 500; it can be understood that when the pump body transports the coolant to the second chamber 113 through the second inlet 160, since the capacity of the multi-media heat exchanger is constant, the coolant in the multi-media heat exchanger will flow out to the circulation pipe through the second outlet 240, and then exchange heat with the battery pack again to reduce the temperature of the battery pack.

[0059] Of course, in some embodiments, the multi-media heat exchanger of this embodiment can dissipate heat for the refrigerant and the coolant at the same time to improve the heat dissipation efficiency for the battery pack.

[0060] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A multi-medium heat exchanger for a water-cooled unit, characterized in that: It comprises a first side plate (100), a second side plate (200), a first pipeline (300) and a second pipeline (400); A first cavity (110) is disposed inside the first side plate (100), and a second cavity (210) is disposed inside the second side plate (200); The first ends of the first pipe (300) and the second pipe (400) extend into the first cavity (110), and the second ends of the first pipe (300) and the second pipe (400) extend into the second cavity (210); The first pipeline (300) and the second pipeline (400) are connected to external equipment through the first cavity (110) and / or the second cavity (210), and in the first cavity (110) and the second cavity (210), the first pipeline (300) and the second pipeline (400) are not connected to each other.

2. The multi-media heat exchanger according to claim 1, characterized in that: A first partition (111) is provided in the first cavity (110), and the first partition (111) divides the first cavity (110) into a first chamber (112) and a second chamber (113); The first end of the first pipe (300) extends into the first chamber (112); the first end of the second pipe (400) extends into the second chamber (113).

3. The multi-media heat exchanger according to claim 2, characterized in that: The first side plate (100) is provided with a first through hole (120), and the first end of the first pipe (300) extends into the first chamber (112) through the first through hole (120).

4. The multi-media heat exchanger according to claim 2, characterized in that: The first side plate (100) is provided with a second through hole (130), and the first partition plate (111) is provided with a third through hole (111a); the first end of the second pipe (400) extends into the second chamber (113) through the second through hole (130) and the third through hole (111a).

5. The multi-media heat exchanger according to claim 2, characterized in that: A second partition (211) is provided in the second cavity (210), and the second partition (211) divides the second cavity (210) into a third chamber (212) and a fourth chamber (213); The second end of the first pipe (300) extends into the third chamber (212); and the second end of the second pipe (400) extends into the fourth chamber (213).

6. The multi-media heat exchanger according to claim 5, characterized in that: The second side plate (200) is provided with a first through hole (220), and the second end of the first pipe (300) extends into the third chamber (212) through the first through hole (220).

7. The multi-media heat exchanger according to claim 5, characterized in that: The second side plate (200) is provided with a second through hole (230), and the second partition plate (211) is provided with a third through hole (211a); the second end of the second pipe (400) extends into the fourth chamber (213) through the second through hole (230) and the third through hole (211a).

8. The multi-media heat exchanger according to claim 1, characterized in that: The number of the first pipes (300) and the number of the second pipes (400) are both plural, and the first pipes (300) and the second pipes (400) are arranged in a staggered manner; Heat dissipation fins (500) are provided between the circumferential side walls of the first pipe (300) and the second pipe (400).

9. The multi-media heat exchanger according to claim 5, characterized in that: The first side plate (100) is provided with a first inlet (140), a second inlet (160) and a first outlet (150); the second side plate (200) is provided with a second outlet (240); The first inlet (140) and the first outlet (150) are in communication with the first chamber (112); the second inlet (160) is in communication with the second chamber (113); and the second outlet (240) is in communication with the fourth chamber (213).

10. The multi-media heat exchanger according to claim 1, characterized in that: At least one third partition plate (310) is provided in the first pipe (300), and the third partition plate (310) extends along the length direction of the first pipe (300).

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