Shell and battery module

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a shell and a battery module. The shell comprises a bottom plate, two first cross beams, two second cross beams and at least one liquid cooling plate, and each first cross beam is connected to the bottom plate and provided with a first flow channel; each second cross beam is connected to the bottom plate; one end of each second cross beam is connected to one side of one second cross beam, and the other end of each second cross beam is connected to one side of the other cross beam; two ends of the liquid cooling plate are respectively connected to the two first cross beams; the liquid cooling plate is provided with at least one second flow channel; wherein the bottom plate, the two first cross beams and the two second cross beams define a containing cavity; the liquid cooling plate is arranged in the containing cavity, and the two first flow channels communicate with the second flow channel. The shell has the advantages of being simple in structure, convenient to install and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically to a housing and a battery module. Background Technology

[0002] The battery module housing and liquid cooling device are important components of the battery module, and together they ensure the safe operation, performance, and lifespan of the battery module.

[0003] However, the existing housing and liquid cooling device have complex structures, resulting in inconvenient installation and high costs. Utility Model Content

[0004] The purpose of this utility model is to provide a housing and battery module that have a simple structure, are easy to install, and save costs.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a housing, comprising:

[0007] Base plate;

[0008] Two first crossbeams, each connected to the base plate, and each having a first flow channel;

[0009] Two second crossbeams, each connected to the base plate; one end of each second crossbeam is connected to one side of another second crossbeam, and the other end is connected to one side of the other crossbeam;

[0010] At least one liquid cooling plate, with its two ends respectively connected to two first crossbeams; the liquid cooling plate is provided with at least one second flow channel;

[0011] The base plate, two first crossbeams, and two second crossbeams enclose a receiving cavity; a liquid cooling plate is disposed within the receiving cavity, and both first flow channels are connected to the second flow channels.

[0012] In an optional embodiment, the housing further includes a first sealing member and a second sealing member, which are respectively disposed at both ends of the first crossbeam and are both used to block the first flow channel.

[0013] In an optional embodiment, the housing further includes a water pipe connector, and the first sealing member has a through hole, through which the water pipe connector communicates with the first flow channel.

[0014] In an optional embodiment, each first crossbeam is provided with a connection hole, the liquid cooling plate is snapped into the first crossbeam through the connection hole, and the first flow channel and the second flow channel are connected through the connection hole.

[0015] In an optional embodiment, there are multiple liquid cooling plates, which are arranged parallel to each other and spaced apart along the length of the first crossbeam.

[0016] There are multiple connection holes, and the multiple connection holes on the two first crossbeams correspond one-to-one; two corresponding connection holes are connected to one liquid cooling plate.

[0017] Each pair of adjacent liquid cooling plates is equipped with a battery cell, and the liquid cooling plates are used to bond the battery cells together.

[0018] In an optional implementation, there are multiple second flow channels, which are spaced apart along the height direction of the first crossbeam and are all connected to two first flow channels.

[0019] In an optional embodiment, the first crossbeam is further provided with a first weight-reducing cavity, the extension direction of which is parallel to the extension direction of the first flow channel.

[0020] In an optional embodiment, the second crossbeam is provided with a second weight-reducing cavity, the extension direction of which is parallel to the extension direction of the second flow channel.

[0021] In an optional embodiment, the base plate is provided with a protrusion, the protrusion direction of which is parallel to the height direction of the first crossbeam.

[0022] Secondly, this utility model provides a battery module, including a cell unit and the aforementioned housing, wherein the cell unit is disposed in a receiving cavity and is attached to a liquid cooling plate.

[0023] The beneficial effects of the housing and battery module provided in this embodiment of the utility model include:

[0024] The housing is equipped with a first crossbeam having a first flow channel and a liquid-cooled plate having a second flow channel, with the first and second flow channels connected to each other. This allows the coolant to flow in both channels, exchanging heat with the battery cell to cool it. The housing also includes a bottom plate and a second crossbeam. The connection between the bottom plate, the first crossbeam, and the second crossbeam forms a cavity that can accommodate the battery cell, thereby protecting it. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1This is a schematic diagram of the shell structure provided in this embodiment;

[0027] Figure 2 This is a schematic diagram of the battery module provided in this embodiment;

[0028] Figure 3 This is a schematic diagram of the structure of the first crossbeam provided in this embodiment;

[0029] Figure 4 This is a schematic diagram of the liquid cooling plate provided in this embodiment;

[0030] Figure 5 An exploded view of the first crossbeam, the first sealing element, the second sealing element, and the water pipe joint provided in this embodiment;

[0031] Figure 6 This is a schematic diagram of the structure of the first sealing component and the water pipe connector provided in this embodiment;

[0032] Figure 7 This is a schematic diagram of the structure of the second crossbeam provided in this embodiment;

[0033] Figure 8 This is a schematic diagram of the base plate provided in this embodiment.

[0034] Icons: 100-Shell; 110-Base plate; 111-Protrusion; 120-First crossbeam; 121-First flow channel; 122-First weight reduction cavity; 123-Connecting hole; 130-Second crossbeam; 131-Second weight reduction cavity; 140-Liquid cooling plate; 141-Second flow channel; 150-First sealing component; 151-Through hole; 160-Second sealing component; 170-Water pipe connector; 200-Battery module; 210-Cell unit; 220-Electrical component. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0040] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0041] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the housing 100 provided in this embodiment; Figure 2 This is a schematic diagram of the structure of the battery module 200 provided in this embodiment.

[0042] This utility model provides a battery module 200, which includes a battery cell unit 210, an electrical component 220, and a housing 100. The battery cell unit 210 and the electrical component 220 are both disposed inside the housing 100, so that the housing 100 can protect the battery cell unit 210 and the electrical component 220 from damage caused by external influences.

[0043] In this embodiment, the housing 100 includes a base plate 110, two first crossbeams 120, and two second crossbeams 130, each first crossbeam 120 and each second crossbeam 130 being connected to the base plate 110; the two first crossbeams 120 are arranged opposite to each other, and the two second crossbeams 130 are also arranged opposite to each other; the two ends of the second crossbeams 130 are respectively connected to the two first crossbeams 120; wherein, the base plate 110, the two first crossbeams 120, and the two second crossbeams 130 enclose a receiving cavity. The battery cell unit 210 and the electrical component 220 are both housed within the receiving cavity, thereby protecting the battery cell unit 210 and the electrical component 220 using the base plate 110, the first crossbeams 120, and the second crossbeams 130.

[0044] It should be noted that the housing 100 in this embodiment also includes at least one liquid cooling plate 140, with both ends of the liquid cooling plate 140 connected to two first crossbeams 120 respectively. Furthermore, the first crossbeams 120 have a first flow channel 121, while the liquid cooling plate 140 has a second flow channel 141; the second flow channel 141 communicates with the first flow channels 121 on the two first crossbeams 120.

[0045] Specifically, the coolant can flow into the first flow channel 121 of a first crossbeam 120, then through a second flow, and finally out through another first crossbeam 121. Because the liquid cooling plate 140 in this application is attached to the battery cell unit 210, the coolant can exchange heat with the battery cell unit 210 during its flow in the second flow channel 141, thereby removing heat from the battery cell unit 210, reducing its temperature, and improving its lifespan.

[0046] In this embodiment, the first crossbeam 120 can protect the battery cell unit 210 and electrical components 220 within the housing cavity, and also cooperate with the liquid cooling plate 140 to allow coolant to flow within the first flow channel 121 and the second flow channel 141, thereby cooling the battery cell unit 210. Compared to the complex structure of existing technologies, the housing 100 in this embodiment has the advantages of simple structure, easy installation, and low cost.

[0047] Based on the above, please refer to... Figures 1-4 , Figure 3 This is a structural schematic diagram of the first crossbeam 120 provided in this embodiment; Figure 4 This is a schematic diagram of the structure of the liquid cooling plate 140 provided in this embodiment.

[0048] In this embodiment, each first crossbeam 120 is provided with a connecting hole 123. The liquid cooling plate 140 is engaged with the first crossbeam 120 through the connecting hole 123, and the first flow channel 121 and the second flow channel 141 are connected through the connecting hole 123. Specifically, the end of the liquid cooling plate 140 is the opening of the second flow channel 141, the end of the liquid cooling plate 140 extends into the connecting hole 123, and the outer wall of the liquid cooling plate 140 abuts against the inner wall of the connecting hole 123, thereby engaging the liquid cooling plate 140 with the first crossbeam 120; and connecting the first flow channel 121 and the second flow channel 141.

[0049] It should be noted that after the first flow channel 121 and the second flow channel 141 are connected, in order to prevent coolant leakage, sealant is applied to the connection between the first crossbeam 120 and the liquid cooling plate 140 to improve the sealing performance of the housing 100.

[0050] Furthermore, there are multiple liquid cooling plates 140, which are arranged parallel to and spaced apart along the length of the first crossbeam 120.

[0051] It should be noted that the cell unit 210 includes multiple cells arranged in an array. A row of cells is arranged between each pair of adjacent liquid cooling plates 140, and the cells are in contact with the adjacent liquid cooling plates 140, so that the coolant flowing in the second flow channel 141 can exchange heat with the cells, thereby cooling the cells.

[0052] Understandably, since there are multiple liquid cooling plates 140, there are also multiple connecting holes 123 on each first crossbeam 120, and the two crossbeams have the same number of holes, which correspond one-to-one; two corresponding connecting holes 123 are connected to one liquid cooling plate 140. This allows each battery cell in the battery cell unit 210 to be in contact with the liquid cooling plate 140, thereby improving heat exchange efficiency and thus improving the cooling efficiency of the battery cell unit 210.

[0053] Understandably, in this embodiment, the first crossbeam 120 replaces the liquid collection pipe of the prior art, thereby simplifying the structure, improving the convenience of installation, and saving costs.

[0054] According to the above structural configuration, each liquid cooling plate 140 in this embodiment is provided with multiple second flow channels 141. The multiple second flow channels 141 are spaced apart along the height direction of the first crossbeam 120 and are all connected to two first flow channels 121.

[0055] Understandably, due to the influence of gravity, the coolant tends to concentrate at the bottom of the second flow channel 141, resulting in concentrated heat exchange between the coolant and the bottom of the battery cell, leading to uneven temperature distribution across different areas of the cell. Therefore, this embodiment provides multiple second flow channels 141 to ensure heat exchange between the coolant and different areas of the battery cell, thereby improving the temperature uniformity of the battery cell unit 210.

[0056] In other embodiments, the shape of the liquid cooling plate 140 can be adjusted according to the shape of the battery cell. For example, in this embodiment, the liquid cooling plate 140 is a straight plate, while in other embodiments, the liquid cooling plate 140 can also be a serpentine plate.

[0057] Further, please refer to Figures 1-6 , Figure 5 An exploded view of the first crossbeam 120, the first sealing member 150, the second sealing member 160, and the water pipe joint 170 provided in this embodiment; Figure 6This is a schematic diagram of the structure of the first sealing member 150 and the water pipe connector 170 provided in this embodiment. Since the end of the first crossbeam 120 in this embodiment has an opening, coolant can flow into and out of the first flow channel 121. However, in this embodiment, the coolant needs to enter from one first flow channel 121, flow through the second flow channel 141, and then flow out from the other first flow channel 121. Therefore, to ensure sealing, the housing 100 also includes a first sealing member 150 and a second sealing member 160, which are respectively disposed at both ends of the first crossbeam 120 and are both used to seal the first flow channel 121.

[0058] It should be noted that the second sealing component 160 always seals one end of the first crossbeam 120 to prevent coolant from entering from one end of the first crossbeam 120 and flowing out directly from the other end.

[0059] Specifically, in this embodiment, the housing 100 also includes a water pipe connector 170, and the first sealing member 150 has a through hole 151. The water pipe connector 170 is connected to the first flow channel 121 through the through hole 151. Understandably, the first sealing member 150 always blocks one end of the first crossbeam 120. Since the water pipe connector 170 is connected to the first flow channel 121 through the through hole 151, coolant can enter the first flow channel 121 through the water pipe connector 170.

[0060] Understandably, both first crossbeams 120 are sealed by a first sealing member 150 and a second sealing member 160, and each first sealing member 150 is connected to a water pipe connector 170. Coolant enters through one water pipe connector 170 and flows out through the other water pipe connector 170, thereby continuously cooling the battery cell unit 210. Furthermore, in this embodiment, sealant is applied to the ends of the first crossbeams 120 to improve sealing and prevent coolant from leaking out from gaps.

[0061] Further, please refer to Figures 1-7 , Figure 7 This is a schematic diagram of the structure of the second crossbeam 130 provided in this embodiment. To reduce the weight of the battery module 200, the first crossbeam 120 in this embodiment is further provided with a first weight-reduction cavity 122, and the second crossbeam 130 is provided with a second weight-reduction cavity 131. Furthermore, the extending direction of the first weight-reduction cavity 122 is parallel to the extending direction of the first flow channel 121; the extending direction of the second weight-reduction cavity 131 is parallel to the extending direction of the second flow channel 141.

[0062] Please refer to Figures 1-8 , Figure 8This is a schematic diagram of the structure of the base plate 110 provided in this embodiment. In this embodiment, the base plate 110 is provided with a protrusion 111. The protruding direction of the protrusion 111 is parallel to the height direction of the first crossbeam 120, thereby improving the structural strength and raising the battery cell unit 210, so that there is a gap between the battery cell unit 210 and the base plate 110.

[0063] It should be noted that, under certain circumstances, the cell unit 210 may generate gas due to chemical reaction, which may cause safety hazards. In this embodiment, a protrusion 111 is provided to create a gap between the cell unit 210 and the base plate 110 to allow gas to escape, thereby improving the safety of the battery module 200.

[0064] In summary, this embodiment provides a first crossbeam 120 with a first flow channel 121 and a liquid-cooled plate 140 with a second flow channel 141, with the first and second flow channels 121 connected to each other. This allows the coolant to flow in both channels, exchanging heat with the battery cell 210 to cool it. This embodiment also includes a base plate 110 and a second crossbeam 130. The connection between the base plate 110, the first crossbeam 120, and the second crossbeam 130 forms a cavity capable of accommodating the battery cell 210, thereby protecting the battery cell 210.

[0065] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A housing, characterized in that, include: Base plate (110); Two first crossbeams (120), each of which is connected to the base plate (110) and has a first flow channel (121); Two second crossbeams (130), each second crossbeam (130) is connected to the base plate (110); one end of each second crossbeam (130) is connected to one side of another second crossbeam (130), and the other end is connected to one side of the other crossbeam; At least one liquid cooling plate (140), the two ends of which are respectively connected to two first crossbeams (120); the liquid cooling plate (140) is provided with at least one second flow channel (141); The base plate (110), the two first crossbeams (120) and the two second crossbeams (130) form a receiving cavity; the liquid cooling plate (140) is disposed in the receiving cavity, and the two first flow channels (121) are connected to the second flow channels (141).

2. The housing of claim 1, wherein The housing (100) further includes a first sealing member (150) and a second sealing member (160), which are respectively disposed at both ends of the first crossbeam (120) and are both used to block the first flow channel (121).

3. The housing of claim 2, wherein, The housing (100) also includes a water pipe connector (170), and the first sealing member (150) has a through hole (151). The water pipe connector (170) is connected to the first flow channel (121) through the through hole (151).

4. The case according to claim 1, characterized by Each of the first crossbeams (120) is provided with a connection hole (123), the liquid cooling plate (140) is snapped into the first crossbeam (120) through the connection hole (123), and the first flow channel (121) and the second flow channel (141) are connected through the connection hole (123).

5. The housing of claim 4, wherein, The number of liquid cooling plates (140) is multiple, and the multiple liquid cooling plates (140) are arranged parallel to and spaced apart along the length direction of the first crossbeam (120); There are multiple connecting holes (123), and the multiple connecting holes (123) on the two first crossbeams (120) correspond one-to-one; two corresponding connecting holes (123) are connected to one liquid cooling plate (140); A battery cell is disposed between each pair of adjacent liquid cooling plates (140), and the liquid cooling plate (140) is used to bond with the battery cell.

6. The case of claim 1, wherein, There are multiple second flow channels (141), and the multiple second flow channels (141) are spaced apart along the height direction of the first crossbeam (120), and each of them is connected to two first flow channels (121).

7. The case of claim 1, wherein, The first crossbeam (120) is also provided with a first weight reduction cavity (122), the extension direction of the first weight reduction cavity (122) being parallel to the extension direction of the first flow channel (121).

8. The case of claim 1, wherein, The second crossbeam (130) is provided with a second weight-reducing cavity (131), and the extension direction of the second weight-reducing cavity (131) is parallel to the extension direction of the second flow channel (141).

9. The case of claim 1, wherein, The bottom plate (110) is provided with a protrusion (111), and a protruding direction of the protrusion (111) is parallel to a height direction of the first cross beam (120).

10. A battery module, characterized in that, The battery cell unit (210) is arranged in the accommodating cavity and is attached to the liquid cooling plate (140).

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