Battery pack box body, battery pack and vehicle

Abstract

The utility model relates to the technical field of power batteries, in particular to a battery pack box body, which comprises a frame, the frame comprises a first frame body and a second frame body, the first frame body and the second frame body are connected and enclose to form an accommodating space for accommodating a battery pack, the first frame body is provided with a mounting hole connected with a vehicle body, and the second frame body is provided with a mounting hole connected with the vehicle body. A mounting hole is formed in the first frame body, a first containing cavity is formed in the bottom wall of the first frame body and surrounds the mounting hole, a second containing cavity is formed in the side wall of the first frame body, and foaming materials are arranged in the first containing cavity and / or the second containing cavity. According to the battery pack box body, the cost can be reduced, and the heat preservation effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, specifically providing a battery pack housing, a battery pack, and a vehicle. Background Technology

[0002] With societal development, new energy vehicles, including those powered by lithium batteries, are being vigorously promoted to reduce air pollution from vehicle exhaust. As the power source for these vehicles, the on-board battery's operating efficiency is significantly affected by ambient temperature. For example, in excessively high or low temperatures, the battery's charging and discharging efficiency, as well as its effective capacity, will decrease considerably. Current technology involves installing insulating foam on the casing, which provides insulation. However, the internal structure of the die-cast casing is complex, with numerous irregular shapes and spaces. Using conventional foam results in poor insulation. Using molded foam, on the other hand, involves complex processes and higher costs.

[0003] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems and provide a battery pack housing that can reduce costs and improve heat preservation.

[0005] This utility model provides a battery pack housing, comprising:

[0006] The frame includes a first frame and a second frame, wherein the first frame and the second frame are connected end to end and enclose a storage space for accommodating the battery pack;

[0007] The first frame has a mounting hole for connecting to the vehicle body, the bottom wall of the first frame has a first receiving cavity, the first receiving cavity is arranged around the mounting hole, the side wall of the first frame has a second receiving cavity, and the first receiving cavity and / or the second receiving cavity are filled with foam material.

[0008] With the above technical solution adopted, the first and second cavities of this utility model have complex structures and different shapes. The first and / or second cavities are filled with foam material, which can effectively solve the insulation problem of cavities with different shapes. This not only simplifies the process, but also eliminates the need to form insulation foam of different shapes, further reducing costs. At the same time, since the foam material is foamed and filled into the cavity, the gap between the foam material and the inner wall of the cavity is very small, and the contact between the foam material and the inner wall of the cavity is close, which can increase the insulation effect.

[0009] In the preferred embodiment of the battery pack housing described above, the first frame and the second frame are made of different materials.

[0010] When the above technical solution is adopted, the first frame and the second frame are made of different materials and are connected together. On the one hand, the overall strength of the box can be improved, and on the other hand, the processing cost of materials can be reduced, thereby reducing the cost.

[0011] In the preferred embodiment of the battery pack housing described above, the first frame is a die-cast part, and the second frame is a profile.

[0012] When the above technical solution is adopted, welding the die-cast parts to the profiles can not only reduce the overall weight and make the battery pack lighter, but also improve the structural strength and stability of the box. Because the die-cast parts and profiles are connected, the assembly efficiency can be improved.

[0013] In the preferred embodiment of the above-mentioned battery pack housing, the first frame includes a main body and a blocking part, wherein the blocking part is disposed between the main body and the battery pack and is connected to the battery pack.

[0014] When the above technical solution is adopted, the blocking part is connected to the battery pack, which can squeeze and fix the battery pack, improve the overall stability of the battery pack, and at the same time, the setting of the blocking part can increase the structural strength of the first frame and the overall rigidity of the battery pack.

[0015] In the preferred embodiment of the battery pack housing described above, the main body is provided with a receiving cavity, and the projection of the first receiving cavity in the horizontal direction is located on opposite sides of the receiving cavity.

[0016] When the above technical solution is adopted, other components are installed in the receiving cavity that need to be kept warm. The first receiving cavity can keep the components in the receiving cavity warm from both sides, so as to achieve a better heat preservation effect.

[0017] In the preferred embodiment of the battery pack housing described above, the projection of the receiving cavity and the first receiving cavity in the horizontal direction do not overlap.

[0018] With the above technical solution, the battery pack is becoming smaller and smaller. The projections of the receiving cavity and the first receiving cavity in the horizontal direction do not overlap. By utilizing the main body in a limited space, not only is the space of other components in the receiving cavity satisfied, but the space of the first receiving cavity is also maximized, thereby achieving a better heat preservation effect. At the same time, space is used rationally and volume is saved.

[0019] In the preferred embodiment of the battery pack housing described above, the position of the second receiving cavity on the side wall of the first frame corresponds to the position of the receiving cavity.

[0020] When the above technical solution is adopted, the distance between the side wall of the first frame and the components in the receiving cavity is relatively close, which is not conducive to heat preservation. By positioning the second receiving cavity to correspond with the receiving cavity, foam material can be filled into the second receiving cavity to achieve a better heat preservation effect.

[0021] In the preferred embodiment of the battery pack housing described above, the first receiving cavity is located at the four corners of the frame.

[0022] With the above technical solution, the first accommodating cavity is located at the four corners. The foam material in the first accommodating cavity can keep the battery pack and other components warm, maximizing the heat preservation effect without affecting the overall size of the battery pack.

[0023] In a second aspect, the present invention provides a battery pack, including the battery pack housing described in the first aspect.

[0024] In a third aspect, the present invention provides a vehicle including the battery pack described in the second aspect. Attached Figure Description

[0025] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a structural schematic diagram of the box body of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the die-casting part and the foaming material of this utility model;

[0028] Figure 3 This is a bottom view of the housing of this utility model.

[0029] Figure label:

[0030] 1. Frame; 11. First frame; 110. Main body; 111. Blocking part; 112. Mounting hole; 113. Bottom wall; 114. First receiving cavity; 115. Second receiving cavity; 116. Receiving cavity; 117. Divider; 12. Second frame; 13. Receiving space;

[0031] 2. Foaming materials. Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0033] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection," "setting," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] like Figures 1 to 3 As shown, in a first aspect, the battery pack housing of this utility model includes a frame 1, which includes a first frame 11 and a second frame 12. The first frame 11 and the second frame 12 are connected and enclose a housing space 13 for housing a battery pack (not shown). The first frame 11 is provided with a mounting hole 112 for connection with the vehicle body. The bottom wall 113 of the first frame 11 is provided with a first receiving cavity 114, which surrounds the mounting hole 112. The side wall of the first frame 1 is provided with a second receiving cavity 115. Foaming material 2 is disposed in the first receiving cavity 114 and / or the second receiving cavity 115. The first receiving cavity 114 consists of multiple spaced cavities, with partitions 117 between the multiple cavities. The partitions 117 are arranged radially along the mounting hole 112. In this embodiment, the foaming material 2 is a foaming adhesive or a potting compound, which can ensure the thermal insulation performance of the battery pack housing and is easy to operate.

[0036] The battery pack housing of this invention has a complex structure and various shapes for each cavity, including the first receiving cavity 114 and the second receiving cavity 115. The first receiving cavity 114 and / or the second receiving cavity 115 are filled with foam material 2, which can effectively solve the heat preservation problem of cavities with different shapes. This not only simplifies the process, but also eliminates the need to form heat preservation foam of different shapes, further reducing costs. At the same time, since the foam material 2 is foamed and filled into the cavity, the gap between the foam material 2 and the inner wall of the cavity is very small, and the contact between the foam material 2 and the inner wall of the cavity is tight, which can increase the heat preservation effect.

[0037] like Figure 1 and Figure 3As shown, the first frame 11 and the second frame 12 are made of different materials. Using different materials and connecting them together improves the overall strength of the enclosure and reduces material processing costs, thus lowering overall costs. The first frame 11 is a die-cast part, while the second frame 12 is a profile. Welding the die-cast part to the profile not only reduces the overall weight, making the battery pack lighter, but also improves the structural strength and stability of the enclosure. Furthermore, the connection between the die-cast part and the profile improves assembly efficiency.

[0038] Reference Figure 1 and Figure 2 The first frame 11 includes a main body 110 and a blocking part 111. The blocking part 111 is located between the main body 110 and the battery pack and is connected to the battery pack. The blocking part 111, connected to the battery pack, can squeeze and fix the battery pack, improving the overall stability of the battery pack. At the same time, the blocking part 111 can increase the structural strength of the first frame 11 and the overall rigidity of the battery pack. The main body 110 has a receiving cavity 116. The projection of the first receiving cavity 114 in the horizontal direction is located on opposite sides of the receiving cavity 116. Other components are housed in the receiving cavity 116 and require heat preservation. The first receiving cavity 114 can insulate the components in the receiving cavity 116 from both sides, achieving a better heat preservation effect.

[0039] Reference Figure 2 The projections of the receiving cavity 116 and the first receiving cavity 114 in the horizontal direction do not overlap. As the battery pack becomes smaller and smaller, the projections of the receiving cavity 116 and the first receiving cavity 114 in the horizontal direction do not overlap. This allows the main body 110 to be utilized within a limited space, which not only satisfies the space requirements of other components in the receiving cavity 116, but also maximizes the space of the first receiving cavity 114, thereby achieving a better heat preservation effect. At the same time, it makes reasonable use of space and saves volume.

[0040] like Figure 2 and Figure 3 As shown, the second receiving cavity 115 is positioned on the side wall of the first frame 11, corresponding to the position of the receiving cavity 116. The second receiving cavity 115 is located in the middle of the side wall. The distance between the side wall of the first frame 11 and the components in the receiving cavity 116 is relatively small, which is not conducive to heat preservation. By aligning the position of the second receiving cavity 115 with the receiving cavity 116, foam material 2 can be filled into the second receiving cavity 115, achieving a better heat preservation effect. The first receiving cavity 114 is located at the four corners of the frame 1. The foam material 2 in the first receiving cavity 114 can insulate the battery pack and other components, maximizing the heat preservation effect without affecting the overall size of the battery pack.

[0041] In a second aspect, the battery pack of this utility model includes the battery pack housing of the first aspect. The battery pack of this technical solution includes the battery pack housing as described in any of the technical solutions of this utility model, and therefore possesses all the technical effects of the battery pack housing of any of the technical solutions of this utility model.

[0042] In a third aspect, the vehicle of this utility model includes the battery pack of the second aspect. The vehicle of this technical solution includes the battery pack of any of the technical solutions of this utility model, and therefore possesses all the technical effects of the battery pack of any of the technical solutions of this utility model.

[0043] It should be noted that the above preferred embodiments are merely illustrative of the principles of this utility model and are not intended to limit the scope of protection of this utility model. Without departing from the principles of this utility model, those skilled in the art can adjust the above-described settings to make this utility model applicable to more specific application scenarios.

[0044] Of course, the alternative implementation methods described above, as well as the alternative implementation methods and preferred implementation methods, can be used in combination to create new implementation methods that are suitable for more specific application scenarios.

[0045] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A battery pack case characterized by, The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body.

2. The battery pack enclosure of claim 1, wherein, The application relates to a battery pack box body.

3. The battery pack enclosure of claim 2, wherein, The application relates to a battery pack box body.

4. The battery pack enclosure of claim 1, wherein, The application relates to a battery pack box body.

5. The battery pack enclosure of claim 4, wherein, The application relates to a battery pack box body.

6. The battery pack enclosure of claim 5, wherein, The application relates to a battery pack box body.

7. The battery pack enclosure of claim 5, wherein, The application relates to a battery pack box body.

8. The battery pack enclosure of claim 1, wherein, The application relates to a battery pack box body.

9. A battery pack, characterized by, The application relates to a battery pack box body.

10. A vehicle characterized by comprising: The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box body. The application relates to a battery pack box

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