A high-efficiency liquid cooling plate assembly capable of realizing secondary heat exchange

Abstract

The utility model relates to the field of liquid cooling plate discloses a kind of high-efficiency liquid cooling plate assembly of realizing secondary heat exchange, including roof and bottom plate, the bottom of roof is fixedly connected with middle plate, the bottom of middle plate is fixedly connected with the top of bottom plate, the inner wall of roof is fixedly connected with backshaped baffle, the inside of bottom plate is fixedly connected with longitudinal beam, the middle part of the left and right sides of longitudinal beam is fixedly connected with crossbeam, the left and right sides of longitudinal beam are fixedly connected with baffle, the inner wall of bottom plate is fixedly connected with guide vane, the guide vane is staggered arrangement.In the utility model, by setting first heat exchange area and second heat exchange area, cooling liquid enters the first flow passage of roof through inlet pipe, after completing first heat exchange, it enters the second flow passage of bottom plate through the communication channel of middle plate, realizes double-temperature-zone gradient heat exchange, absorbs heat by secondary heat exchange in stages, and liquid cooling plate assembly can improve heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling plates, and in particular to a high-efficiency liquid cooling plate assembly that can achieve secondary heat exchange. Background Technology

[0002] Liquid cooling plates are currently widely used in battery thermal management. The liquid cooling plate has flow channels and liquid medium inside. The liquid medium exchanges heat with the battery cell through the internal flow channels. In other words, the liquid cooling plate provides heat and cold sources for the battery cell and manages the temperature of the power battery pack through the flow of liquid medium at a certain temperature.

[0003] Existing high-efficiency liquid cooling plates have overly simplistic flow channel designs, typically featuring straight inlet and outlet. The fluid medium only exchanges heat with the channel wall, resulting in a small heat exchange area between the liquid medium and the liquid cooling plate, which in turn reduces heat exchange efficiency. To address this issue, a high-efficiency liquid cooling plate assembly capable of secondary heat exchange is proposed. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a high-efficiency liquid cooling plate assembly that can achieve secondary heat exchange, aiming to solve the problem in the prior art that "the liquid cooling plate flow channel allows the coolant to enter and exit directly, and the fluid medium only exchanges heat with the flow channel wall, affecting the heat exchange efficiency".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency liquid-cooled plate assembly capable of secondary heat exchange, comprising a top plate and a bottom plate, wherein a middle plate is fixedly connected to the bottom of the top plate, the bottom of the middle plate is fixedly connected to the top of the bottom plate, a U-shaped partition is fixedly connected to the inner wall of the top plate, a longitudinal beam is fixedly connected to the inside of the bottom plate, a crossbeam is fixedly connected to the middle of the left and right sides of the longitudinal beam, baffles are fixedly connected to the left and right sides of the longitudinal beam, a guide plate is fixedly connected to the inner wall of the bottom plate, the guide plates are staggered, an inlet pipe is fixedly connected to the top of the top plate, and an outlet pipe is fixedly connected to the bottom of the bottom plate.

[0006] As a further description of the above technical solution: The top plate has a first heat exchange zone inside, and the bottom plate has a second heat exchange zone inside.

[0007] As a further description of the above technical solution: The longitudinal beams and transverse beams are set at a 90-degree angle, and the longitudinal beams and transverse beams divide the interior of the base plate into a grid pattern.

[0008] As a further description of the above technical solution: The baffle further divides each grid in the grid pattern inside the base plate into a U-shape.

[0009] As a further description of the above technical solution: The number of guide plates is set to multiple, with half of the guide plate surfaces fixedly connected to the baffle surface and the other half of the guide plate surfaces fixedly connected to the base plate surface.

[0010] As a further description of the above technical solution: The top plate has a first flow channel inside.

[0011] As a further description of the above technical solution: The base plate has a second flow channel inside.

[0012] As a further description of the above technical solution: The surface of the intermediate plate is provided with a connecting channel, and the first flow channel is connected to the second flow channel through the connecting channel.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by setting a first heat exchange area and a second heat exchange area, the coolant enters the first flow channel of the top plate through the inlet pipe, and after completing the first heat exchange, it enters the second flow channel of the bottom plate through the connecting channel of the middle plate, realizing dual-temperature gradient heat exchange. Through secondary heat exchange, heat is absorbed in stages, and the liquid cooling plate assembly can improve heat exchange efficiency, increase heat exchange area, and increase heat exchange capacity.

[0014] 2. In this utility model, a spiral flow channel is constructed by means of a U-shaped baffle, and the coolant in the first heat exchange area flows in a spiral progression, which extends the heat exchange path and improves the heat exchange efficiency. Through the combination of baffles and staggered guide plates, a multi-stage baffle structure is formed for internal flow, so that the coolant forms a serpentine channel in the bottom plate, which increases the contact area of ​​the coolant and enhances the bottom heat exchange. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the first heat exchange region of the overall three-dimensional structure in this utility model; Figure 3 This is a cross-sectional schematic diagram of the second heat exchange region of the overall three-dimensional structure in this utility model; Figure 4 This is a schematic cross-sectional view of the overall three-dimensional structure of this utility model.

[0016] Legend: 1. Top plate; 2. Intermediate plate; 3. Bottom plate; 4. First heat exchange zone; 5. Second heat exchange zone; 101. U-shaped baffle; 111. Longitudinal beam; 112. Crossbeam; 113. Baffle; 114. Guide plate; 121. First flow channel; 122. Second flow channel; 123. Connecting channel; 16. Liquid inlet pipe; 17. Liquid outlet pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 and Figure 4 The present invention provides an embodiment of a high-efficiency liquid-cooled plate assembly capable of secondary heat exchange, comprising a top plate 1 and a bottom plate 3. The bottom of the top plate 1 is fixedly connected to an intermediate plate 2, and the bottom of the intermediate plate 2 is fixedly connected to the top of the bottom plate 3. The top plate 1 is provided with a first heat exchange area 4 for primary heat exchange, and the bottom plate 3 is provided with a second heat exchange area 5 for secondary heat exchange.

[0019] Reference Figure 1 , Figure 2 and Figure 4 The inner wall of the top plate 1 is fixedly connected with a U-shaped baffle 101, which forms a spiral flow channel to make the coolant in the first heat exchange zone 4 flow in a spiral progression, extending the heat exchange path and improving the heat exchange efficiency. The interior of the bottom plate 3 is fixedly connected with a longitudinal beam 111, which is set as longitudinal direction. The middle of the left and right sides of the longitudinal beam 111 is fixedly connected with a transverse beam 112, which is set as transverse direction. The left and right sides of the longitudinal beam 111 are fixedly connected with baffles 113. The inner wall of the bottom plate 3 is fixedly connected with a guide plate 114, which is arranged in an alternating manner. The top of the top plate 1 is fixedly connected with an inlet pipe 16 for inputting coolant, and the bottom of the bottom plate 3 is fixedly connected with an outlet pipe 17 for discharging coolant.

[0020] Reference Figures 2-4 The number of guide plates 114 is set to multiple, with half of the guide plate 114 surface fixedly connected to the surface of the baffle 113, and the other half of the guide plate 114 surface fixedly connected to the surface of the bottom plate 3. The baffle 113, together with the staggered guide plates 114, forms a multi-stage baffle structure, which makes the coolant form a serpentine channel in the bottom plate 3, increases the contact area of ​​the coolant, and enhances the bottom heat exchange.

[0021] Reference Figures 2-4 The longitudinal beam 111 and the transverse beam 112 are set at a 90-degree angle. The longitudinal beam 111 and the transverse beam 112 divide the interior of the base plate 3 into a grid shape. The baffle 113 further divides each grid in the interior of the base plate 3 into a U-shape, providing a regular flow path for the cooling liquid, increasing the flow path length of the liquid medium, extending the heat exchange time, and improving the heat exchange effect.

[0022] Reference Figures 2-4 The top plate 1 has a first flow channel 121 inside, the bottom plate 3 has a second flow channel 122 inside, and the surface of the intermediate plate 2 has a connecting channel 123. The first flow channel 121 is connected to the second flow channel 122 through the connecting channel 123. The coolant enters the first flow channel 121 of the top plate 1 through the inlet pipe 16, and after completing the first heat exchange, it enters the second flow channel 122 of the bottom plate 3 through the connecting channel 123 of the intermediate plate 2 for secondary heat exchange, thereby realizing gradient heat exchange in two temperature zones.

[0023] Working principle: During use, the coolant first enters the first heat exchange zone 4 inside the top plate 1 through the inlet pipe 16. In the first heat exchange zone 4, the coolant flows along the spiral flow channel formed by the U-shaped baffle 101, and exchanges heat with the battery cell for the first time, absorbing the heat generated by the battery cell. The coolant in the first heat exchange zone 4 flows in a spiral progression, which extends the heat exchange path and improves the heat exchange efficiency.

[0024] After the initial heat exchange, the cooling liquid then flows into the second heat exchange zone 5 inside the bottom plate 3 through the connecting channel 123 on the surface of the intermediate plate 2. In the second heat exchange zone 5, the cooling liquid flows within a multi-stage baffle structure formed by the longitudinal beam 111, the cross beam 112, the baffle 113, and the guide plate 114, which makes the cooling liquid form a serpentine channel in the bottom plate 3, increasing the contact area of ​​the cooling liquid, enhancing the bottom heat exchange, and further exchanging heat with the battery cell for a second time, absorbing heat again.

[0025] Finally, the cooling liquid that has undergone secondary heat exchange is discharged from the liquid cooling plate assembly through the liquid outlet pipe 17, completing the entire heat exchange cycle. By absorbing heat in stages through secondary heat exchange, the liquid cooling plate assembly can improve heat exchange efficiency.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency liquid cooling plate assembly capable of realizing secondary heat exchange, comprising a top plate (1) and a bottom plate (3), characterized in that: The bottom of the top plate (1) is fixedly connected to the middle plate (2), the bottom of the middle plate (2) is fixedly connected to the top of the bottom plate (3), the inner wall of the top plate (1) is fixedly connected to the U-shaped partition (101), the inside of the bottom plate (3) is fixedly connected to the longitudinal beam (111), the middle of the left and right sides of the longitudinal beam (111) is fixedly connected to the cross beam (112), the left and right sides of the longitudinal beam (111) are fixedly connected to the baffle (113), the inner wall of the bottom plate (3) is fixedly connected to the guide plate (114), the guide plate (114) is staggered, the top of the top plate (1) is fixedly connected to the liquid inlet pipe (16), and the bottom of the bottom plate (3) is fixedly connected to the liquid outlet pipe (17).

2. The high-efficiency liquid cooling plate assembly capable of realizing secondary heat exchange according to claim 1, characterized in that: The top plate (1) has a first heat exchange area (4) inside, and the bottom plate (3) has a second heat exchange area (5) inside.

3. The high-efficiency liquid cooling plate assembly capable of realizing secondary heat exchange according to claim 1, characterized in that: The longitudinal beam (111) and the transverse beam (112) are set at a 90-degree angle, and the longitudinal beam (111) and the transverse beam (112) divide the interior of the bottom plate (3) into a grid shape.

4. The high-efficiency liquid cooling plate assembly capable of realizing secondary heat exchange according to claim 1, characterized in that: The baffle (113) further divides each grid in the grid pattern inside the base plate (3) into a U-shape.

5. A high-efficiency liquid-cooled plate assembly capable of secondary heat exchange according to claim 1, characterized in that: The number of the guide plates (114) is set to multiple, of which half of the guide plates (114) are fixedly connected to the surface of the baffle (113), and the other half of the guide plates (114) are fixedly connected to the surface of the bottom plate (3).

6. The high-efficiency liquid-cooled plate assembly capable of secondary heat exchange according to claim 1, characterized in that: The top plate (1) has a first flow channel (121) inside.

7. A high-efficiency liquid-cooled plate assembly capable of secondary heat exchange according to claim 6, characterized in that: The bottom plate (3) has a second flow channel (122) inside.

8. A high-efficiency liquid-cooled plate assembly capable of secondary heat exchange according to claim 7, characterized in that: The surface of the intermediate plate (2) is provided with a connecting channel (123), and the first flow channel (121) is connected to the second flow channel (122) through the connecting channel (123).

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