Battery pack box body, battery pack and vehicle

Abstract

The utility model discloses a battery pack box body, battery pack and vehicle, the battery pack box body of the disclosed embodiment comprises a frame, the frame encloses to form an accommodating cavity, the frame comprises a connector assembly panel, at least one part of the connector assembly panel is located in the accommodating cavity, the connector assembly panel is provided with a thickening part, and the thickening part is located in the accommodating cavity. The thickness of the thickening part is larger than the thickness of other parts on the connector panel, and a first blind hole is formed in the thickening part and used for being connected with a fastener to fix the connector. According to the battery pack box body disclosed by the embodiment of the utility model, when the connector is mounted, the first blind hole is formed in the thickening part of the connector panel, and the thickness of the thickening part is greater than that of other parts on the connector panel, so that only a part of area on the connector panel needs to be thickened to be used for forming the first blind hole; and the whole connector panel does not need to be set to be thicker. The battery pack box body disclosed by the embodiment of the invention has the advantage of light weight.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and particularly relates to a battery pack box body, a battery pack and a vehicle. Background Art

[0002] In the related art, a connector panel is provided on the battery pack box body, and connection holes are provided on the connector panel. Fasteners are fixed to the connectors by connecting with the connection holes. In order to improve the sealing performance of the battery pack box body and prevent external air from entering the interior of the battery pack through the connection holes, the connection holes are generally set as blind holes. However, in order to provide blind holes, the connector panel is usually set to be relatively thick, resulting in an increase in the weight of the battery pack box body. Summary of the Utility Model

[0003] The present disclosure aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present disclosure provide a battery pack box body, a battery pack and a vehicle.

[0004] The battery pack box body of the embodiments of the present disclosure includes a frame, the frame encloses to form a receiving cavity, the frame includes a connector panel, at least a part of the connector panel is located in the receiving cavity, the connector panel has a thickening portion, the thickness of the thickening portion is greater than the thickness of other parts on the connector panel, and a first blind hole is provided on the thickening portion, and the first blind hole is used to connect with a fastener to fix the connector.

[0005] In some embodiments, the connector panel has an inner wall surface and an outer wall surface opposite to each other in the inner and outer direction of the frame, the inner wall surface is located in the receiving cavity, and the inner wall surface of the thickening portion protrudes relative to the inner wall surface of other parts on the connector panel.

[0006] In some embodiments, the orifice of the first blind hole is located on the outer wall surface.

[0007] In some embodiments, a weight-reducing groove is provided on the thickening portion.

[0008] In some embodiments, the thickening portion extends along the height direction of the battery pack box body, the thickening portion has a top and a bottom opposite to each other in the height direction of the battery pack box body, and the cross-section of the thickening portion orthogonal to the height direction of the battery pack box body gradually shrinks along the direction from the bottom to the top.

[0009] In some embodiments, a plurality of the first blind holes are provided on the thickening portion, and the plurality of first blind holes are arranged at intervals in the height direction of the battery pack box body.

[0010] In some embodiments, a perforation communicating with the accommodation cavity is formed in the connector panel, and the perforation is for the connector to pass through. The thickening portion includes at least two, and the at least two thickening portions are a first thickening portion and a second thickening portion. The first thickening portion and the second thickening portion are spaced apart on both sides of the perforation, and a first blind hole is provided on each of the first thickening portion and the second thickening portion.

[0011] In some embodiments, the connector panel and the frame are integrally cast.

[0012] The battery pack of the embodiments of the present disclosure includes a battery pack box body and a connector. The battery pack box body is the battery pack box body in any of the above embodiments. The connector has a through hole for a fastener to pass through, and the fastener is connected to the first blind hole to fix the connector.

[0013] The vehicle of the embodiments of the present disclosure includes the battery pack in any of the above embodiments.

[0014] When installing the connector on the connector panel of the battery pack box body of the embodiments of the present disclosure, the connector is connected to the first blind hole through the fastener to realize the fixation of the connector. Since the first blind hole is provided on the thickening portion of the connector panel, and the thickness of the thickening portion is greater than the thickness of other parts on the connector panel, only a partial area on the connector panel needs to be thickened for setting the first blind hole, and it is not necessary to make the entire connector panel thicker. Compared with the related art, the material usage of the connector panel can be reduced to reduce the weight of the battery pack box body, so that the battery pack box body of the embodiments of the present disclosure has the advantage of light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an installation schematic diagram of the connector according to the embodiment of the present invention.

[0016] Figure 2 is a sectional installation schematic diagram of the connector according to the embodiment of the present invention

[0017] Figure 3 is a structural schematic diagram of the connector according to the embodiment of the present invention.

[0018] Figure 4 is a structural schematic diagram of the connector panel according to the embodiment of the present invention.

[0019] Figure 5 is a structural schematic diagram of the connector panel from another perspective according to the embodiment of the present invention.

[0020] Figure 6 is a sectional view of the connector panel according to the embodiment of the present invention.

[0021] Reference Signs:

[0022] 1. Frame; 2. Accommodating cavity; 3. Connector panel; 301. Perforation; 302. Thickened portion; 3021. First blind hole; 3022. Weight reduction groove; 3023. Top; 3024. Bottom; 303. Inner wall surface; 304. Outer wall surface; 4. Connector; 401. Through hole; 5. Fastener. Specific embodiments

[0023] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0024] As Figures 1 to 6 shown, the battery pack box body of the embodiment of the present utility model includes a frame 1 and a connector panel 3. The frame 1 encloses to form an accommodating cavity 2. The frame 1 includes a connector panel 3, and at least a part of the connector panel 3 is located inside the accommodating cavity 2. The connector panel 3 has a thickened portion 302, and the thickness of the thickened portion 302 is greater than the thickness of other parts on the connector panel 3. A first blind hole 3021 is provided on the thickened portion 302, and the first blind hole 3021 is used to be connected to a fastener 5 to fix the connector 4.

[0025] When installing the connector 4 on the connector panel 3 of the battery pack box body of the embodiment of the present utility model, the connector 4 is connected to the first blind hole 3021 through the fastener 5 to realize the fixation of the connector 4. Since the first blind hole 3021 is provided on the thickened portion 302 of the connector panel 3, and the thickness of the thickened portion 302 is greater than the thickness of other parts on the connector panel 3, only a part of the area on the connector panel 3 needs to be thickened for setting the first blind hole 3021, and it is not necessary to make the entire connector panel 3 thicker. Compared with the related art, the material usage of the connector panel 3 can be reduced to reduce the weight of the battery pack box body, so that the battery pack box body of the embodiment of the present utility model has the advantage of light weight.

[0026] Optionally, the first blind hole 3021 can be a threaded hole, or a wire thread insert can be provided in the first blind hole 3021, and the fastener 5 can be a screw. Of course, the inner wall of the first blind hole 3021 can also be unthreaded, and the fastener 5 can be a self-tapping screw.

[0027] In some embodiments, the connector panel 3 has an inner wall surface 303 and an outer wall surface 304 that are opposite to each other in the inner and outer directions of the frame 1. The inner wall surface 303 is located inside the accommodating cavity 2, and the inner wall surface 303 of the thickened portion 302 protrudes relative to the inner wall surface 303 of other parts on the connector panel 3.

[0028] As Figures 4 to 6As shown, by protruding the inner wall surface 303 of the thickening portion 302 relative to the inner wall surfaces 303 of other parts on the connector panel 3, the thickening portion 302 is located within the accommodation cavity 2, which can prevent the thickening portion 302 from occupying the external space of the frame 1. Therefore, when installing the connector 4 on the connector panel 3, interference between the thickening portion 302 and the connector 4 during the assembly process can be avoided, facilitating the installation of the connector 4.

[0029] In some embodiments, the orifice of the first blind hole 3021 is provided on the outer wall surface 304.

[0030] As Figure 4 and Figure 6 shown, since the orifice of the first blind hole 3021 is provided on the outer wall surface 304, there is a relatively large installation space on the outer side of the frame 1. When installing the connector 4, there is a relatively large operating space to connect the fastener 5 to the first blind hole 3021, which is beneficial to improving the connection efficiency between the fastener 5 and the first blind hole 3021, and further beneficial to improving the assembly efficiency of the connector 4.

[0031] In some embodiments, the thickening portion 302 has a weight reduction groove 3022.

[0032] For example, as Figure 4 and Figure 6 shown, the opening of the weight reduction groove 3022 is provided on the outer wall surface 304. By providing the weight reduction groove 3022 on the thickening portion 302, while effectively ensuring the structural strength of the thickening portion 302, the weight of the connector panel 3 can be further reduced, thereby further reducing the weight of the battery pack housing.

[0033] Optionally, the portion of the connector panel 3 other than the thickening portion 302 has a uniform wall thickness and the thickness is 1.5 mm - 2.5 mm, the wall thickness of the first blind hole 3021 is 3 mm - 5 mm, and the thickness of the side wall of the weight reduction groove 3022 is 2 mm - 3 mm.

[0034] In some embodiments, the thickening portion 302 extends along the height direction of the battery pack housing. The thickening portion 302 has a top 3023 and a bottom 3024 that are opposite in the height direction of the battery pack housing. The cross-section of the thickening portion 302 orthogonal to the height direction of the battery pack housing gradually shrinks from the bottom 3024 to the top 3023.

[0035] As Figure 5As shown in the body 6, since the cross-section of the thickening part 302 orthogonal to the height direction of the battery pack housing gradually contracts from the bottom 3024 to the top 3023, it can be understood that the thickening part 302 has a certain draft angle in the height direction of the battery pack housing. When using a casting mold to cast the connector panel 3, the casting mold can be demolded along the direction from the bottom 3024 to the top 3023 of the thickening part 302, which is convenient for processing and manufacturing the thickening part 302.

[0036] In some embodiments, a plurality of first blind holes 3021 are provided on the thickening part 302, and the plurality of first blind holes 3021 are arranged at intervals in the height direction of the battery pack housing.

[0037] As Figure 2 and Figure 4 shown, by providing a plurality of first blind holes 3021 on the thickening part 302, the spaced arrangement of the plurality of first blind holes 3021 can provide more fixing points, thereby enhancing the connection strength between the connector 4 and the battery pack housing, further enhancing the installation stability of the connector 4, improving the durability and vibration resistance of the overall structure, and preventing the connector 4 from loosening or falling off during the operation of the battery pack.

[0038] In some embodiments, a through hole 301 communicating with the accommodating cavity 2 is formed on the connector panel 3, and the through hole 301 is for the connector 4 to pass through. The thickening part 302 includes at least two, and the at least two thickening parts 302 include a first thickening part and a second thickening part. The first thickening part and the second thickening part are spaced on both sides of the through hole 301, and a first blind hole 3021 is provided on each of the first thickening part and the second thickening part.

[0039] As Figure 4 and Figure 5 shown, when installing the connector 4, the connector 4 is adapted to extend into the accommodating cavity 2 through the through hole 301 on the connector panel 3 and is connected to the battery cell module in the accommodating cavity 2. By spacing the first thickening part and the second thickening part on both sides of the through hole 301, it helps to evenly distribute the installation stress of the connector 4, can enhance the installation stability of the connector 4, and thus improve the durability and vibration resistance of the overall structure.

[0040] In some embodiments, the connector panel 3 and the frame 1 are integrally cast. Integrally casting the connector panel 3 and the frame 1 can increase the strength and stability of the overall structure, reduce the risk of loosening or damage at the joints or connections between different components. In addition, integral casting can simplify the manufacturing process, reduce the number of parts and assembly time, improve production efficiency and reduce manufacturing costs.

[0041] The present utility model also discloses a battery pack, which includes a battery pack box body and a connector 4. The battery pack box body is the battery pack box body described in any one of the above embodiments. The connector 4 has a through hole 401 for a fastener 5 to pass through, and the fastener 5 is connected to the first blind hole 3021 to fix the connector 4.

[0042] Therefore, the battery pack of the embodiment of the present utility model has the advantage of light weight.

[0043] The present utility model also discloses a vehicle, which includes the battery pack described in any one of the above embodiments.

[0044] Therefore, the vehicle of the embodiment of the present utility model has the advantage of light weight.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0050] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A battery pack box, characterized in that: include: A frame, wherein the frame encloses a receiving cavity, the frame includes a connector panel, at least a portion of the connector panel is located in the receiving cavity, the connector panel has a thickened portion, the thickness of the thickened portion is greater than the thickness of other portions of the connector panel, and a first blind hole is provided on the thickened portion, the first blind hole is used to connect with a fastener to fix the connector.

2. The battery pack case according to claim 1, characterized in that: The connector panel has an inner wall surface and an outer wall surface opposite to each other along the inner and outer directions of the frame, the inner wall surface is located in the accommodating cavity, and the inner wall surface of the thickened portion is protruding relative to the inner wall surfaces of other parts of the connector panel.

3. The battery pack case according to claim 2, characterized in that: The opening of the first blind hole is located on the outer wall surface.

4. The battery pack case according to claim 1, characterized in that: The thickened portion is provided with a weight-reducing groove.

5. The battery pack case according to claim 1, characterized in that: The thickened portion extends along the height direction of the battery pack case, and has a top and a bottom opposite to each other in the height direction of the battery pack case. A cross section of the thickened portion orthogonal to the height direction of the battery pack case gradually shrinks from the bottom to the top.

6. The battery pack case according to claim 5, characterized in that: The thickened portion is provided with a plurality of the first blind holes, and the plurality of the first blind holes are arranged at intervals in a height direction of the battery pack body.

7. The battery pack case according to claim 1, characterized in that: A through hole communicating with the accommodating cavity is provided on the connector panel, and the through hole is used for the connector to pass through. The thickened portions include at least two, and the at least two thickened portions are a first thickened portion and a second thickened portion. The first thickened portion and the second thickened portion are spaced apart on both sides of the through hole, and the first blind hole is provided on each of the first thickened portion and the second thickened portion.

8. The battery pack case according to claim 1, characterized in that: The connector panel and the frame are integrally cast.

9. A battery pack, characterized in that: include: A battery pack case, wherein the battery pack case is the battery pack case according to any one of claims 1 to 8; A connector is provided with a through hole for a fastener to pass through, and the fastener is connected to the first blind hole to fix the connector.

10. A vehicle, characterized in that: Comprising the battery pack described in claim 9.

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