Liquid cooling pipe structure and battery module

Abstract

The embodiment of the utility model provides a liquid cooling pipe structure and a battery module, and relates to the field of batteries. The problems that a liquid cooling pipe cannot support a battery cell and the manufacturing process is complex are solved. The liquid cooling pipe structure comprises a first liquid cooling plate and a second liquid cooling plate, and a plurality of first liquid cooling grooves distributed at intervals are formed in one side of the first liquid cooling plate; a plurality of second liquid cooling grooves distributed at intervals are formed in one side of the second liquid cooling plate; wherein the side, provided with the multiple first liquid cooling grooves, of the first liquid cooling plate and the side, provided with the multiple second liquid cooling grooves, of the second liquid cooling plate are buckled together, and the multiple first liquid cooling grooves and the multiple second liquid cooling grooves are arranged in an overlapped and staggered mode, so that liquid cooling channels communicating with one another are formed between the multiple first liquid cooling grooves and the multiple second liquid cooling grooves. The battery module comprises the liquid cooling pipe structure. The first liquid cooling plate and the second liquid cooling plate can support the expansion battery cell, in addition, the first liquid cooling plate and the second liquid cooling plate are integrally formed, the cooling effect is good, and assembling is easy.

Description

Technical Field

[0001] The utility model relates to the field of batteries, and in particular to a liquid cooling tube structure and a battery module. Background Art

[0002] The cell liquid cooling tube is a key component of the heat dissipation method of the liquid cooling structure of the power battery pack. Inside the battery box, a liquid cooling plate is set on the side or bottom of the cell, and the liquid cooling plate has built-in thin coolant pipes, which are the so-called liquid cooling tubes.

[0003] The main working principle of the liquid cooling tube is that the heat of the battery cell is transferred to the liquid cooling tube through the thermally conductive silicone sheet, and then the coolant circulates freely in the liquid cooling tube due to thermal expansion and contraction, taking away the heat, thereby keeping the temperature of the entire battery pack uniform. The coolant can effectively absorb the heat generated by the battery cell when it is working due to its strong specific heat capacity, ensuring that the battery pack operates within a safe temperature.

[0004] However, the current liquid cooling tubes cannot support the battery cells in and out, especially when the battery cells expand, the liquid cooling tubes are easily squeezed, affecting the liquid cooling effect. At the same time, the current liquid cooling tube manufacturing process is complicated and needs to be welded after forming before it can be used. Utility Model Content

[0005] The purpose of the utility model includes, for example, providing a liquid cooling tube structure, which can improve the problem that the liquid cooling tube cannot support the battery core and the manufacturing process is complicated.

[0006] The purpose of the utility model also includes providing a battery module, which can improve the problem that the liquid cooling tube cannot support the battery core and the manufacturing process is complicated.

[0007] The embodiments of the present invention can be implemented as follows:

[0008] An embodiment of the utility model provides a liquid cooling pipe structure, including a first liquid cooling plate and a second liquid cooling plate, wherein a first water inlet pipe and a first water outlet pipe are respectively arranged at two ends of the first liquid cooling plate, a plurality of first liquid cooling grooves distributed at intervals are opened on one side of the first liquid cooling plate, and the first water inlet pipe and the first water outlet pipe are both connected to the first liquid cooling grooves; a second water inlet pipe and a second water outlet pipe are respectively arranged at two ends of the second liquid cooling plate, a plurality of second liquid cooling grooves distributed at intervals are opened on one side of the second liquid cooling plate, and the second water inlet pipe and the second water outlet pipe are both connected to the second liquid cooling grooves; wherein, a side of the first liquid cooling plate on which a plurality of the first liquid cooling grooves are arranged and a side of the second liquid cooling plate on which a plurality of the second liquid cooling grooves are arranged are buckled together, and the plurality of the first liquid cooling grooves and the plurality of the second liquid cooling grooves are overlapped and staggered with each other to form mutually connected liquid cooling channels between the plurality of the first liquid cooling grooves and the plurality of the second liquid cooling grooves.

[0009] In addition, the liquid cooling pipe structure provided in the embodiment of the utility model may also have the following additional technical features:

[0010] Optionally, any one of the first liquid cooling grooves overlaps with at least two adjacent second liquid cooling grooves in an offset manner to connect the two adjacent second liquid cooling grooves; and a connected liquid cooling channel is formed between the first liquid cooling groove and the two connected second liquid cooling grooves.

[0011] Optionally, the first liquid cooling groove is correspondingly arranged at the intersection of three adjacent second liquid cooling grooves, and is connected to the three second liquid cooling grooves at the same time, so that any two adjacent second liquid cooling grooves are connected through one first liquid cooling groove to form the liquid cooling channel.

[0012] Optionally, the liquid cooling pipe structure also includes a first bottom plate and a second bottom plate; the first bottom plate is used to contact the bottom of the battery cell, and the first bottom plate is fixed on the side of the first liquid cooling plate away from the first liquid cooling groove along the length direction of the first liquid cooling plate, and the first bottom plate is provided with a first liquid cooling cavity, and the first liquid cooling cavity is connected to multiple first liquid cooling grooves; the second bottom plate is used to contact the bottom of the battery cell, and the second bottom plate is fixed on the two sides of the second liquid cooling plate away from the second liquid cooling groove along the length direction of the second liquid cooling plate, and the second bottom plate is provided with a second liquid cooling cavity, and the second liquid cooling cavity is connected to multiple second liquid cooling grooves.

[0013] Optionally, a plurality of first liquid-cooling channels extending along the width direction of the first liquid-cooling plate are provided on one side edge of the first liquid-cooling plate close to the first liquid-cooling cavity, and the plurality of first liquid-cooling channels are connected to the adjacent first liquid-cooling grooves one by one, and the ends of the plurality of first liquid-cooling channels away from the first liquid-cooling grooves are all connected to the first liquid-cooling cavity; a plurality of second liquid-cooling channels extending along the width direction of the second liquid-cooling plate are provided on one side edge of the second liquid-cooling plate close to the second liquid-cooling cavity, and the plurality of second liquid-cooling channels are connected to the adjacent second liquid-cooling grooves one by one, and the ends of the plurality of second liquid-cooling channels away from the second liquid-cooling grooves are all connected to the second liquid-cooling cavity;

[0014] Wherein, a plurality of the first liquid cooling channels and a plurality of the second liquid cooling channels are overlapped and staggered to be interconnected.

[0015] Optionally, a plurality of first diverter grooves are provided at one end of the first liquid cooling plate, and a plurality of second diverter grooves are provided at the other end of the first liquid cooling plate; the plurality of first diverter grooves are connected to the first water inlet pipe, and the plurality of second diverter grooves are connected to the first water outlet pipe;

[0016] A plurality of third diverter grooves are provided at one end of the second liquid cooling plate, and a plurality of fourth diverter grooves are provided at the other end of the second liquid cooling plate; the plurality of third diverter grooves are connected to the second water inlet pipe, and the plurality of fourth diverter grooves are connected to the second water outlet pipe;

[0017] The third diverter groove is overlapped between the first diverter groove and the first liquid cooling groove, and the second diverter groove is overlapped between the fourth diverter groove and the second liquid cooling groove.

[0018] Optionally, a first support block is provided at the pipe mouth of the first water inlet pipe, and a second support block is provided in the first diversion groove, and the first support block and the second support block are used to prevent the second liquid cooling plate from squeezing the first liquid cooling groove.

[0019] Optionally, the first liquid cooling plate and the second liquid cooling plate have the same structure; the first liquid cooling plate and the second liquid cooling plate are used to be buckled together after being inverted at both ends, so that multiple first liquid cooling grooves and multiple second liquid cooling grooves are overlapped and staggered.

[0020] An embodiment of the utility model also provides a battery module, which includes multiple battery cells and multiple liquid cooling tube structures. The multiple liquid cooling tube structures are arranged side by side and spaced apart. The space between two adjacent liquid cooling tube structures is used to accommodate the battery cells. The adjacent first water inlet pipes are connected to the second water inlet pipes, and the adjacent first water outlet pipes are connected to the second water outlet pipes.

[0021] Optionally, the battery module further includes a plurality of quick-insert tubes, and the adjacent first water inlet pipes and the second water inlet pipes are connected via the quick-insert tubes, and the adjacent first water outlet pipes and the second water outlet pipes are connected via the quick-insert tubes.

[0022] The beneficial effects of the liquid cooling tube structure and the battery module of the embodiment of the utility model include, for example:

[0023] The liquid cooling pipe structure includes a first liquid cooling plate and a second liquid cooling plate, wherein a first water inlet pipe and a first water outlet pipe are respectively arranged at both ends of the first liquid cooling plate, a plurality of first liquid cooling grooves distributed at intervals are opened on one side of the first liquid cooling plate, and the first water inlet pipe and the first water outlet pipe are both connected to the first liquid cooling grooves; a second water inlet pipe and a second water outlet pipe are respectively arranged at both ends of the second liquid cooling plate, a plurality of second liquid cooling grooves distributed at intervals are opened on one side of the second liquid cooling plate, and the second water inlet pipe and the second water outlet pipe are both connected to the second liquid cooling grooves; wherein, a side of the first liquid cooling plate where the plurality of first liquid cooling grooves are arranged and a side of the second liquid cooling plate where the plurality of second liquid cooling grooves are arranged are buckled together, and the plurality of first liquid cooling grooves and the plurality of second liquid cooling grooves are overlapped and staggered with each other to form mutually connected liquid cooling channels between the plurality of first liquid cooling grooves and the plurality of second liquid cooling grooves.

[0024] Interconnected liquid cooling channels are formed between the multiple first liquid cooling tanks and the multiple second liquid cooling tanks. Liquid cooling water is filled in the multiple first liquid cooling tanks, the multiple second liquid cooling tanks and the multiple liquid cooling channels. The liquid cooling water can cover the plane of the first liquid cooling plate and the second liquid cooling plate to fully cool the battery cells. In addition, the first liquid cooling plate and the second liquid cooling plate can provide support for the expansion of the battery cells to ensure the cooling effect of the battery cells. Furthermore, the liquid cooling tanks on the first liquid cooling plate and the second liquid cooling plate can be integrally formed by plastic parts, stamping or die-casting, and the first liquid cooling plate and the second liquid cooling plate can be fixed together without welding. The cooling effect is good, the structure is simple, and it is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of the battery module provided in this embodiment;

[0027] Figure 2 A schematic diagram of the partial structure of the battery module provided in this embodiment;

[0028] Figure 3 A schematic structural diagram of a battery module provided in this embodiment with a second liquid cooling plate removed;

[0029] Figure 4 A schematic diagram of the structure of the first structure of the liquid cooling tube structure provided in this embodiment;

[0030] Figure 5 An axial side view of a first liquid cooling plate of a first structure of a liquid cooling tube structure provided in this embodiment;

[0031] Figure 6 A perspective view of the assembly of the first liquid cooling plate and the second liquid cooling plate in the first structure of the liquid cooling tube structure provided in this embodiment;

[0032] Figure 7 for Figure 6 A partial enlarged view of

[0033] Figure 8 A schematic diagram of the structure of the second structure of the liquid cooling tube structure provided in this embodiment;

[0034] Fig. 9 An axial side view of the first liquid cooling plate in the second structure of the liquid cooling tube structure provided in this embodiment;

[0035] Fig.10 A perspective view of the assembly of the first liquid cooling plate and the second liquid cooling plate in the second structure of the liquid cooling tube structure provided in this embodiment;

[0036] Fig.11 for Fig.11 A partial enlarged view of

[0037] Fig.12 A schematic diagram of a structure in which two first structures of the liquid cooling tube structure provided in this embodiment are connected together;

[0038] Fig.13 for Fig.12 A partial schematic diagram is shown.

[0039] Icons: 10-battery module; 11-liquid cooling pipe structure; 100-first liquid cooling plate; 110-first water inlet pipe; 120-first water outlet pipe; 130-first liquid cooling tank; 140-first diverter tank; 150-second diverter tank; 160-first liquid cooling channel; 200-second liquid cooling plate; 210-second water inlet pipe; 220-second water outlet pipe; 230-second liquid cooling tank; 240-third diverter tank; 250-fourth diverter tank; 260-second liquid cooling channel; 300-liquid cooling channel; 400-first bottom plate; 401-first liquid cooling cavity; 410-second bottom plate; 500-first support block; 510-second support block; 600-battery cell; 700-quick insert. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0044] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0045] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0046] Combine the following Figures 1 to 13 The liquid cooling pipe structure 11 provided in this embodiment is described in detail.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model provides a liquid cooling pipe structure 11, which is used to be arranged between the battery cells 600. The liquid cooling pipe structure 11 includes a first liquid cooling plate 100 and a second liquid cooling plate 200. One side of the first liquid cooling plate 100 is used to contact the battery cells 600. The other side of the first liquid cooling plate 100 is provided with a plurality of first liquid cooling grooves 130 distributed at intervals. The first liquid cooling plate 100 is provided with a first water inlet pipe 110 and a first water outlet pipe 120 at both ends. The first water inlet pipe 110 and the first water outlet pipe 120 are both connected to the first liquid cooling groove 130. One side of the second liquid cooling plate 200 is used to contact the battery cells 600. The other side of the second liquid cooling plate 200 is provided with a plurality of second liquid cooling grooves 230 distributed at intervals. The second liquid cooling plate 200 is provided with a second water inlet pipe 210 and a second water outlet pipe 220 at both ends. The second water inlet pipe 210 and the second water outlet pipe 220 are both connected to the second liquid cooling groove 230.

[0048] Among them, refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 The first liquid cooling plate 100 is provided with a side of a plurality of first liquid cooling grooves 130 and the second liquid cooling plate 200 is provided with a side of a plurality of second liquid cooling grooves 230 and buckled together, and the plurality of first liquid cooling grooves 130 and the plurality of second liquid cooling grooves 230 are overlapped and staggered with each other to form a liquid cooling channel 300 interconnected between the plurality of first liquid cooling grooves 130 and the plurality of second liquid cooling grooves 230.

[0049] Liquid cooling water enters between the first liquid cooling tank 130 and the second liquid cooling tank 230 through the first water inlet pipe 110 and the second water inlet pipe 210, flows through the liquid cooling channel 300 formed between the first liquid cooling tank 130 and multiple second liquid cooling tanks 230, and then flows out from the first water outlet pipe 120 and the second water outlet pipe 220.

[0050] Interconnected liquid cooling channels 300 are formed between the multiple first liquid cooling grooves 130 and the multiple second liquid cooling grooves 230. Liquid cooling water is filled in the multiple first liquid cooling grooves 130, the multiple second liquid cooling grooves 230 and the multiple liquid cooling channels 300. The liquid cooling water can cover the plane of the first liquid cooling plate 100 and the second liquid cooling plate 200 to fully cool the battery cell 600. In addition, the first liquid cooling plate 100 and the second liquid cooling plate 200 can provide support for the expansion of the battery cell 600 to ensure the cooling effect of the battery cell 600. Furthermore, the liquid cooling grooves on the first liquid cooling plate 100 and the second liquid cooling plate 200 can be integrally formed by plastic parts, stamping or die-casting, and the first liquid cooling plate 100 and the second liquid cooling plate 200 can be fixed together without welding. The cooling effect is good, the structure is simple, and it is easy to assemble.

[0051] Reference Figure 6 and Figure 7 In this embodiment, any one of the first liquid cooling grooves 130 is staggered and overlapped with at least two adjacent second liquid cooling grooves 230 to connect the two adjacent second liquid cooling grooves 230; a connected liquid cooling channel 300 is formed between the first liquid cooling groove 130 and the two connected second liquid cooling grooves 230.

[0052] After the liquid-cooling water enters the second liquid-cooling tank 230, as long as the two adjacent second liquid-cooling tanks 230 are connected through the first liquid-cooling tank 130, the liquid-cooling water can flow from one end of the liquid-cooling pipe structure 11 to the other end. As for how many second liquid-cooling tanks 230 a first liquid-cooling tank 130 needs to be connected to, at least two are required, and the number can be increased to three or four.

[0053] Reference Figure 6 and Figure 7 In this embodiment, the first liquid cooling groove 130 is correspondingly arranged at the intersection of three adjacent second liquid cooling grooves 230, and is connected with the three second liquid cooling grooves 230 at the same time, so that any two adjacent second liquid cooling grooves 230 are connected through one first liquid cooling groove 130 to form a liquid cooling channel 300.

[0054] The three second liquid cooling grooves 230 are connected through one first liquid cooling groove 130, and similarly, the three first liquid cooling grooves 130 are connected through one second liquid cooling groove 230. More liquid cooling channels 300 are formed, so that the liquid cooling water can more fully cover the plane where the first liquid cooling plate 100 and the second liquid cooling plate 200 are located, thereby improving the liquid cooling effect.

[0055] Specifically, the first liquid cooling groove 130 is octagonal, the second liquid cooling groove 230 is also octagonal, and the first liquid cooling grooves 130 on the first liquid cooling plate 100 are distributed in an array and staggered between rows. Similarly, the second liquid cooling grooves 230 on the second liquid cooling plate 200 are distributed in an array and staggered between rows, forming a Figure 7 The staggered layout structure shown.

[0056] Reference Figure 8 and Fig. 9 In this embodiment, the liquid cooling pipe structure 11 further includes a first bottom plate 400 and a second bottom plate 410; the first bottom plate 400 is used to contact the bottom of the battery cell 600, and the first bottom plate 400 is fixed along the length direction of the first liquid cooling plate 100 on the side of the first liquid cooling plate 100 away from the first liquid cooling groove 130, and the first bottom plate 400 is provided with a first liquid cooling cavity 401, and the first liquid cooling cavity 401 is connected with a plurality of first liquid cooling grooves 130; the second bottom plate 410 is used to contact the bottom of the battery cell 600, and the second bottom plate 410 is fixed along the length direction of the second liquid cooling plate 200 on the two sides of the second liquid cooling plate 200 away from the second liquid cooling groove 230, and the second bottom plate 410 is provided with a second liquid cooling cavity, and the second liquid cooling cavity is connected with a plurality of second liquid cooling grooves 230.

[0057] The first bottom plate 400 is perpendicular to the first liquid cooling plate 100, and the second bottom plate 410 is perpendicular to the second liquid cooling plate 200. When the first liquid cooling plate 100 is in contact with the battery cell 600, the first bottom plate 400 is in contact with the bottom of the battery cell 600. Similarly, when the second liquid cooling plate 200 is in contact with the battery cell 600, the second bottom plate 410 is in contact with the bottom of the battery cell 600.

[0058] After the liquid cooling water enters the liquid cooling tank from the water inlet pipe, it first fills the liquid cooling cavity, then fills the liquid cooling tank, and finally flows out from the water outlet pipe at the other end.

[0059] Reference Figure 8 , Fig. 9 , Fig.10 and Fig.11In this embodiment, a plurality of first liquid cooling channels 160 extending along the width direction of the first liquid cooling plate 100 are arranged on one side edge of the first liquid cooling chamber 401 of the first liquid cooling plate 100, and the plurality of first liquid cooling channels 160 are connected to the adjacent first liquid cooling grooves 130 in a one-to-one correspondence, and the ends of the plurality of first liquid cooling channels 160 away from the first liquid cooling grooves 130 are all connected to the first liquid cooling chamber 401; a plurality of second liquid cooling channels 260 extending along the width direction of the second liquid cooling plate 200 are arranged on one side edge of the second liquid cooling chamber of the second liquid cooling plate 200, and the plurality of second liquid cooling channels 260 are connected to the adjacent second liquid cooling grooves 230 in a one-to-one correspondence, and the ends of the plurality of second liquid cooling channels 260 away from the second liquid cooling grooves 230 are all connected to the second liquid cooling chamber; wherein, the plurality of first liquid cooling channels 160 and the plurality of second liquid cooling channels 260 are overlapped and staggered with each other to be connected to each other.

[0060] by Fig.10 The relative positions in the figure are introduced, and multiple first liquid cooling channels 160 are arranged vertically. Similarly, multiple second liquid cooling channels 260 are arranged vertically. The first row of first liquid cooling grooves 130 and the second row of first liquid cooling grooves 130 from bottom to top are respectively connected to the first liquid cooling channel 160. Similarly, the first row of second liquid cooling grooves 230 and the second row of second liquid cooling grooves 230 from bottom to top are respectively connected to the second liquid cooling channel 260. Two adjacent first liquid cooling channels 160 are connected through the second liquid cooling channel 260. Therefore, after the liquid cooling water fills the liquid cooling cavity, it fills the first liquid cooling channel 160 and the second liquid cooling channel 260 that are connected to each other, and finally fills the first liquid cooling groove 130 and the second liquid cooling groove 230 before flowing out from the water outlet pipe.

[0061] Reference Figure 6 and Figure 7 In this embodiment, a plurality of first diverter grooves 140 are provided at one end of the first liquid cooling plate 100, and a plurality of second diverter grooves 150 are provided at the other end of the first liquid cooling plate 100; the plurality of first diverter grooves 140 are connected to the first water inlet pipe 110, and the plurality of second diverter grooves 150 are connected to the first water outlet pipe 120; a plurality of third diverter grooves 240 are provided at one end of the second liquid cooling plate 200, and a plurality of fourth diverter grooves 250 are provided at the other end of the second liquid cooling plate 200; the plurality of third diverter grooves 240 are connected to the second water inlet pipe 210, and the plurality of fourth diverter grooves 250 are connected to the second water outlet pipe 220; wherein the third diverter grooves 240 are overlappedly arranged between the first diverter grooves 140 and the first liquid cooling groove 130, and the second diverter grooves 150 are overlappedly arranged between the fourth diverter grooves 250 and the second liquid cooling groove 230.

[0062] The diverter slot mainly plays the role of diversion. The first diverter slot 140 and the third diverter slot 240 are staggered, forming the first water inlet pipe 110, the second water inlet pipe 210, the first diverter slot 140, the third diverter slot 240, the first liquid cooling tank 130 and the second liquid cooling tank 230 are interconnected. For example, the liquid cooling water first enters the first diverter slot 140 through the first water inlet pipe 110, and then enters the second liquid cooling tank 230 through the third diverter slot 240. Similarly, the second diverter slot 150 and the fourth diverter slot 250 at the other end of the liquid cooling pipe structure 11 are also staggered, and the fourth diverter slot 250 and the second liquid cooling tank 230 are connected.

[0063] Reference Figure 6 and Figure 7 In this embodiment, a first support block 500 is provided at the pipe mouth of the first water inlet pipe 110, and a second support block 510 is provided in the first diversion groove 140. The first support block 500 and the second support block 510 are used to prevent the second liquid cooling plate 200 from squeezing the first liquid cooling groove 130.

[0064] Support blocks can be set at the pipe openings of the water inlet pipe and the water outlet pipe, and support blocks can also be set in the diversion groove, in order to increase the supporting force between the first liquid cooling plate 100 and the second liquid cooling plate 200 at both ends, avoid the entry of liquid cooling water due to squeezing, and ensure the smooth flow of liquid cooling water.

[0065] Reference Figure 5 , Figure 6 , Figure 8 and Fig. 9 In this embodiment, the first liquid cooling plate 100 and the second liquid cooling plate 200 have the same structure; the first liquid cooling plate 100 and the second liquid cooling plate 200 are used to be buckled together after being reversed at both ends, so that the multiple first liquid cooling grooves 130 and the multiple second liquid cooling grooves 230 are overlapped and staggered.

[0066] The first liquid cooling plate 100 and the second liquid cooling plate 200 can adopt the same structure, and the first liquid cooling plate 100 and the second liquid cooling plate 200 are fixed after being interchanged at both ends, so that the first liquid cooling groove 130 and the second liquid cooling groove 230 are staggered. For example, if the distance between the two ends of the first liquid cooling plate 100 is different, then after the two ends of the second liquid cooling plate 200 are swapped and fixed to the first liquid cooling plate 100, the first liquid cooling groove 130 and the second liquid cooling groove 230 can be staggered with each other, which can be designed according to the size relationship. After the first liquid cooling plate 100 and the second liquid cooling plate 200 adopt the same structure, it is only necessary to form multiple first liquid cooling plates 100 and then combine them to complete the installation of the liquid cooling pipe structure 11.

[0067] Reference Figure 1 , Figure 2 , Figure 3 , Fig.12 and Fig.13An embodiment of the utility model further provides a battery module 10, the battery module 10 includes a plurality of battery cells 600 and a plurality of liquid cooling pipe structures 11, the plurality of liquid cooling pipe structures 11 are arranged side by side and spaced apart, a space between two adjacent liquid cooling pipe structures 11 is used to accommodate the battery cells 600, the adjacent first water inlet pipes 110 and the second water inlet pipes 210 are connected, and the adjacent first water outlet pipes 120 and the second water outlet pipes 220 are connected.

[0068] The first water inlet pipe 110 and the second water inlet pipe 210 at one end of the multiple liquid cooling pipe structures 11 are connected in sequence, and the first water outlet pipe 120 and the second water outlet pipe 220 at the other end of the multiple liquid cooling pipe structures 11 are connected in sequence. The liquid cooling water first water inlet pipe 110 and the second water inlet pipe 210 fill the first liquid cooling tank 130 and the second liquid cooling tank 230, or the first liquid cooling cavity 401 and the second liquid cooling cavity in sequence, and then flows out from the first water outlet pipe 120 and the second water outlet pipe 220.

[0069] In this embodiment, the battery module 10 further includes a plurality of quick-insert tubes 700 , and the adjacent first water inlet pipes 110 and second water inlet pipes 210 are connected via the quick-insert tubes 700 , and the adjacent first water outlet pipes 120 and second water outlet pipes 220 are connected via the quick-insert tubes 700 .

[0070] The first water inlet pipe 110 and the second water inlet pipe 210 are respectively inserted into the quick-insert pipe 700 from both ends thereof, and a sealing ring is provided between the first water inlet pipe 110 and the quick-insert pipe 700, and a sealing ring is also provided between the second water inlet pipe 210 and the quick-insert pipe 700. The first water outlet pipe 120 and the second water outlet pipe 220 are also connected by a quick-insert method.

[0071] According to a liquid cooling pipe structure 11 provided in this embodiment, the working principle of the liquid cooling pipe structure 11 is: two liquid cooling plates are respectively provided with a first liquid cooling groove 130 and a second liquid cooling groove 230, the two liquid cooling plates are buckled together, the first liquid cooling groove 130 and the second liquid cooling groove 230 are staggered, and connected to form a liquid cooling channel 300. A new type of liquid cooling pipe is designed, which can support the battery cell 600 and realize double-sided cooling.

[0072] The liquid cooling pipe structure 11 provided in this embodiment has at least the following advantages:

[0073] Interconnected liquid cooling channels 300 are formed between the plurality of first liquid cooling grooves 130 and the plurality of second liquid cooling grooves 230. Liquid cooling water is filled in the plurality of first liquid cooling grooves 130, the plurality of second liquid cooling grooves 230 and the plurality of liquid cooling channels 300. The liquid cooling water can cover the planes of the first liquid cooling plate 100 and the second liquid cooling plate 200, so as to fully cool the battery cell 600.

[0074] In addition, the first liquid cooling plate 100 and the second liquid cooling plate 200 can provide support for the expansion of the battery cell 600, thereby ensuring the cooling effect of the battery cell 600;

[0075] Furthermore, the liquid cooling grooves on the first liquid cooling plate 100 and the second liquid cooling plate 200 can be integrally formed by plastic parts, stamping or die-casting, and the first liquid cooling plate 100 and the second liquid cooling plate 200 can be fixed together without welding. The cooling effect is good, the structure is simple, and it is easy to assemble.

[0076] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A liquid cooling pipe structure, characterized in that: include: A first liquid cooling plate (100), wherein a first water inlet pipe (110) and a first water outlet pipe (120) are respectively arranged at two ends of the first liquid cooling plate (100), a plurality of first liquid cooling grooves (130) are arranged at intervals on one side of the first liquid cooling plate (100), and the first water inlet pipe (110) and the first water outlet pipe (120) are both connected to the first liquid cooling grooves (130); and a second liquid cooling plate (200), wherein two ends of the second liquid cooling plate (200) are respectively provided with a second water inlet pipe (210) and a second water outlet pipe (220), and one side of the second liquid cooling plate (200) is provided with a plurality of second liquid cooling grooves (230) distributed at intervals, and the second water inlet pipe (210) and the second water outlet pipe (220) are both connected to the second liquid cooling grooves (230); The first liquid cooling plate (100) is provided with a side of the plurality of first liquid cooling grooves (130) and the second liquid cooling plate (200) is provided with a side of the plurality of second liquid cooling grooves (230) and are buckled together, and the plurality of first liquid cooling grooves (130) and the plurality of second liquid cooling grooves (230) are overlapped and staggered with each other to form interconnected liquid cooling channels (300) between the plurality of first liquid cooling grooves (130) and the plurality of second liquid cooling grooves (230).

2. The liquid cooling pipe structure according to claim 1, characterized in that: Any one of the first liquid cooling grooves (130) is staggered and overlapped with at least two adjacent second liquid cooling grooves (230) to connect the two adjacent second liquid cooling grooves (230); a connected liquid cooling channel (300) is formed between the first liquid cooling groove (130) and the two connected second liquid cooling grooves (230).

3. The liquid cooling pipe structure according to claim 2, characterized in that: The first liquid cooling groove (130) is correspondingly arranged at the intersection of three adjacent second liquid cooling grooves (230), and is connected with the three second liquid cooling grooves (230) at the same time, so that any two adjacent second liquid cooling grooves (230) are connected through one first liquid cooling groove (130) to form the liquid cooling channel (300).

4. The liquid cooling pipe structure according to any one of claims 1 to 3, characterized in that: The liquid cooling pipe structure further comprises a first bottom plate (400) and a second bottom plate (410); the first bottom plate (400) is used for contacting the bottom of the battery cell (600); the first bottom plate (400) is fixed on a side of the first liquid cooling plate (100) away from the first liquid cooling groove (130) along the length direction of the first liquid cooling plate (100); the first bottom plate (400) is provided with a first liquid cooling cavity (401); the first liquid cooling cavity (401) is connected with a plurality of the first liquid cooling grooves (130); the second bottom plate (410) is used for contacting the bottom of the battery cell (600); the second bottom plate (410) is fixed on two sides of the second liquid cooling plate (200) away from the second liquid cooling groove (230) along the length direction of the second liquid cooling plate (200); the second bottom plate (410) is provided with a second liquid cooling cavity; the second liquid cooling cavity is connected with a plurality of the second liquid cooling grooves (230).

5. The liquid cooling pipe structure according to claim 4, characterized in that: A plurality of first liquid cooling channels (160) extending along the width direction of the first liquid cooling plate (100) are arranged on one side edge of the first liquid cooling plate (100) close to the first liquid cooling cavity (401), and the plurality of first liquid cooling channels (160) are connected to the adjacent first liquid cooling grooves (130) in a one-to-one correspondence, and the ends of the plurality of first liquid cooling channels (160) away from the first liquid cooling grooves (130) are all connected to the first liquid cooling cavity (401); a plurality of second liquid cooling channels (260) extending along the width direction of the second liquid cooling plate (200) are arranged on one side edge of the second liquid cooling plate (200) close to the second liquid cooling cavity, and the plurality of second liquid cooling channels (260) are connected to the adjacent second liquid cooling grooves (230) in a one-to-one correspondence, and the ends of the plurality of second liquid cooling channels (260) away from the second liquid cooling grooves (230) are all connected to the second liquid cooling cavity; Wherein, a plurality of the first liquid cooling channels (160) and a plurality of the second liquid cooling channels (260) are overlapped and staggered to be interconnected.

6. The liquid cooling pipe structure according to any one of claims 1 to 3, characterized in that: A plurality of first shunt grooves (140) are provided at one end of the first liquid cooling plate (100), and a plurality of second shunt grooves (150) are provided at the other end of the first liquid cooling plate (100); the plurality of first shunt grooves (140) are connected to the first water inlet pipe (110), and the plurality of second shunt grooves (150) are connected to the first water outlet pipe (120); A plurality of third diverter grooves (240) are provided at one end of the second liquid cooling plate (200), and a plurality of fourth diverter grooves (250) are provided at the other end of the second liquid cooling plate (200); the plurality of third diverter grooves (240) are connected to the second water inlet pipe (210), and the plurality of fourth diverter grooves (250) are connected to the second water outlet pipe (220); The third diverter groove (240) is overlapped between the first diverter groove (140) and the first liquid cooling groove (130), and the second diverter groove (150) is overlapped between the fourth diverter groove (250) and the second liquid cooling groove (230).

7. The liquid cooling pipe structure according to claim 6, characterized in that: A first support block (500) is arranged at the pipe mouth of the first water inlet pipe (110), and a second support block (510) is arranged in the first diverter groove (140); the first support block (500) and the second support block (510) are used to prevent the second liquid cooling plate (200) from squeezing the first liquid cooling groove (130).

8. The liquid cooling pipe structure according to any one of claims 1 to 3, characterized in that: The first liquid cooling plate (100) and the second liquid cooling plate (200) have the same structure; the first liquid cooling plate (100) and the second liquid cooling plate (200) are used to buckle together after being inverted at both ends, so that a plurality of the first liquid cooling grooves (130) and a plurality of the second liquid cooling grooves (230) are overlapped and staggered.

9. A battery module (10), characterized in that: The battery module (10) comprises a plurality of battery cells (600) and a plurality of liquid cooling tube structures according to any one of claims 1 to 8, wherein the plurality of liquid cooling tube structures are arranged side by side and spaced apart, and a space is provided between two adjacent liquid cooling tube structures for accommodating the battery cells (600), the adjacent first water inlet pipes (110) and the second water inlet pipes (210) are connected, and the adjacent first water outlet pipes (120) and the second water outlet pipes (220) are connected.

10. The battery module (10) according to claim 9, characterized in that: The battery module (10) further comprises a plurality of quick-insert pipes (700), wherein the adjacent first water inlet pipe (110) and the second water inlet pipe (210) are connected via the quick-insert pipes (700), and the adjacent first water outlet pipe (120) and the second water outlet pipe (220) are connected via the quick-insert pipes (700).

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