Battery pack base and battery pack

Abstract

The battery pack base comprises a high-voltage connecting part and a low-voltage connecting part which are integrally connected, and the high-voltage connecting part is provided with a copper bar installation space and a copper bar fixing piece arranged in the copper bar installation space. The low-voltage connecting part is provided with a connector mounting space and a connector fixing piece arranged in the connector mounting space, the copper bar fixing piece is used for fixing a high-voltage copper bar in the copper bar mounting space, and the connector fixing piece is used for fixing a low-voltage connector in the connector mounting space. According to the battery pack base, the high-voltage connecting part and the low-voltage connecting part are arranged on the battery pack base to connect the high-voltage copper bar and the low-voltage connector, the situation that devices influence each other in the installation process is avoided, an electrical gap cannot be reduced, the probability of insulation is reduced, and the safety of the battery pack base is improved.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage battery technology, specifically relating to a battery pack base and a battery pack. Background Technology

[0002] With the development of new energy vehicles, energy storage systems and other fields, battery packs, as core components, are particularly important for their structural design and performance optimization. For example, utility model patent application number CN202321590165.X provides a battery pack base and a battery pack, wherein the battery pack base includes: a base body, a support surface on the side of the base body near the inside of the battery pack shell for contacting the battery module, and a first reinforcing structure on the side of the base body away from the inside of the battery pack shell.

[0003] In existing battery pack designs, high-voltage output and low-voltage output are usually achieved by connecting two independent devices to a high-voltage copper busbar and a low-voltage connector, respectively. The voltage range of 1.2–3.7 V is low voltage, and the voltage range of ≥48 V is high voltage. However, during installation, the two devices can interfere with each other, resulting in a reduction in electrical clearance and thus an insulation risk, which reduces the safety of the battery pack. Utility Model Content

[0004] The purpose of this utility model is to provide a battery pack base and a battery pack. By setting a high-voltage connection part and a low-voltage connection part on a battery pack base to connect the high-voltage copper busbar and the low-voltage connector, there is no mutual interference between components during the installation process, the electrical clearance will not be reduced, the probability of insulation failure is reduced, and the safety of the battery pack base is improved.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: According to the first aspect, a battery pack base is provided, including an integrally connected high-voltage connection part and a low-voltage connection part. The high-voltage connection part is provided with a copper busbar installation space and a copper busbar fixing member arranged in the copper busbar installation space. The low-voltage connection part is provided with a connector installation space and a connector fixing member arranged in the connector installation space. The copper busbar fixing member is used to fix the high-voltage copper busbar in the copper busbar installation space, and the connector fixing member is used to fix the low-voltage connector in the connector installation space.

[0006] In this embodiment of the application, the low-voltage connection part includes a first enclosure plate, a second enclosure plate, a third enclosure plate, and a fourth enclosure plate. The first enclosure plate, the second enclosure plate, the third enclosure plate, and the fourth enclosure plate are connected end to end to form a connector installation space. The first enclosure plate is provided with a connector fixing member, and the third enclosure plate is integrally connected to the high-voltage connection part.

[0007] In this embodiment, the connector fixing member includes a plurality of connector fixing holes arranged on the first enclosure plate, and the battery pack base also includes a plurality of connector fixing bolts. The connector fixing bolts are screwed into the connector fixing holes and then connected to the low-voltage connector.

[0008] In this embodiment of the application, the high-voltage connection part includes a mounting plate and two limiting blocks arranged on the mounting plate. The mounting plate is integrally connected to the third enclosure plate. The distance between the two limiting blocks is equal to the width of the high-voltage copper busbar. The mounting plate and the two limiting blocks are connected to form the copper busbar installation space.

[0009] In this embodiment, the copper busbar fixing component includes a mounting nut disposed on the mounting plate, and the battery pack base further includes a mounting bolt, which is used to cooperate with the mounting nut to fix the high-voltage copper busbar.

[0010] In this embodiment of the application, the fourth enclosure is provided with a buckle on the side away from the first enclosure, and the buckle is used to fix the battery pack base.

[0011] In this embodiment of the application, the mounting plate is provided with a weight-reducing groove.

[0012] In this embodiment of the application, the mounting plate is provided with bosses on both sides.

[0013] According to a second aspect, a battery pack is provided, including a battery pack housing, a battery module, an end plate, and a battery pack base according to a first aspect. The battery pack housing and the battery pack base are mated to form a battery pack outer shell. The end plate is connected to the battery pack base, and the battery module and the end plate are fixed inside the battery pack outer shell.

[0014] In this embodiment of the application, the battery pack further includes foam, one side of which abuts against the low-voltage connector and the other side of which abuts against the low-voltage connection portion.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The present invention proposes a battery pack base and a battery pack, which connects the high-voltage copper busbar and the low-voltage connector by setting a high-voltage connection part and a low-voltage connection part on a battery pack base. There is no mutual interference between components during the installation process, the electrical clearance will not be reduced, the probability of insulation failure is reduced, and the safety of the battery pack base is improved.

[0017] 2. The present invention provides a battery pack base and battery pack, which improves the safety of the low-voltage connector during use by installing the low-voltage connector in the connector installation space formed by the first enclosure, the second enclosure, the third enclosure and the fourth enclosure.

[0018] 3. The present invention proposes a battery pack base and battery pack, wherein the mounting plate is provided with protrusions on both sides. The protrusions are used to increase the electrical creepage distance, avoid insulation failure caused by high temperature, dust and other harsh environments when the high voltage copper busbar connected to the battery pack base is exposed to high temperature and dust, improve the stability of the battery pack base, delay the aging of the battery pack base, and extend the service life of the battery pack base.

[0019] 4. The present invention provides a battery pack base and battery pack, which uses foam to mitigate direct collision or vibration between the low-voltage connector and the battery pack base, prevents damage to the device caused by external impact, and prevents dust from entering the low-voltage connector, thereby reducing the risk of short circuit caused by contamination. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0021] Figure 1 This is a schematic diagram of a battery pack base according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the installation of a battery pack base according to an embodiment of the present utility model;

[0023] Figure 3 This is an embodiment of the present utility model. Figure 3 The front view.

[0024] In the diagram: 1. High-voltage connection; 11. Mounting plate; 12. Limiting block; 13. Weight-reducing groove; 14. Boss; 2. Low-voltage connection; 21. First enclosure plate; 22. Second enclosure plate; 23. Third enclosure plate; 24. Fourth enclosure plate; 25. Buckle; 3. Copper busbar installation space; 4. Copper busbar fixing component; 41. Mounting nut; 42. Mounting bolt; 5. Connector installation space; 6. Connector fixing component; 61. Connector fixing hole; 62. Connector fixing bolt; 7. End plate; 8. Foam; 9. High-voltage copper busbar; 10. Low-voltage connector. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model and the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort. Furthermore, the design orientation only indicates the relative positional relationship between the components, not the absolute positional relationship.

[0026] This utility model embodiment provides a battery pack base and a battery pack. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 It mainly includes a high-voltage connection part 1 and a low-voltage connection part 2.

[0027] In a first aspect, this utility model provides a battery pack base, which includes an integrally connected high-voltage connection part 1 and a low-voltage connection part 2. The high-voltage connection part 1 has a copper busbar mounting space 3, within which a copper busbar fixing member 4 is arranged. During installation, the high-voltage copper busbar is placed within the copper busbar mounting space 3, and then the copper busbar fixing member 4 secures the high-voltage copper busbar within the copper busbar mounting space 3 to achieve high-voltage output. The low-voltage connection part 2 has a connector mounting space 5, within which a connector fixing member 6 is arranged. During installation, the low-voltage connector is placed within the connector mounting space 5, and then the connector fixing member 6 secures the low-voltage connector within the connector mounting space 5 to achieve low-voltage output. In this application, by setting the high-voltage connection part 1 and the low-voltage connection part 2 on a single battery pack base to connect the high-voltage copper busbar and the low-voltage connector, there is no mutual interference between components during installation, the electrical clearance is not reduced, the probability of insulation failure is decreased, and the safety of the battery pack base is improved.

[0028] In one embodiment, the low-voltage connection part 2 includes a first enclosure 21, a second enclosure 22, a third enclosure 23, and a fourth enclosure 24. The first enclosure 21, the second enclosure 22, the third enclosure 23, and the fourth enclosure 24 are connected end to end to form a connector mounting space 5. The connector fixing member 6 is arranged on the first enclosure 21, and the high-voltage connection part 1 is integrally connected to the third enclosure 23. By installing the low-voltage connector within the connector mounting space 5 formed by the first enclosure 21, the second enclosure 22, the third enclosure 23, and the fourth enclosure 24, the low-voltage connector will not collide with other devices after installation, thus improving the safety of the low-voltage connector during use.

[0029] Furthermore, the connector fixing component 6 includes connector fixing holes 61, with at least two connector fixing holes 61, for fixing the installation posture of the low-voltage connector. The battery pack base also includes connector fixing bolts 62, which are screwed into the connector fixing holes 61 and then connected to the low-voltage connector to fix the low-voltage connector and achieve low-voltage output.

[0030] In one possible implementation, the high-voltage connection part 1 includes a mounting plate 11 and two limiting blocks 12 arranged on the mounting plate 11. The mounting plate 11 is integrally connected to the third enclosure plate 23, and the distance between the two limiting blocks 12 is equal to the width of the high-voltage copper busbar (width direction is...). Figure 3 (In the left and right directions), the mounting plate 11 is connected to the limiting block 12 to form the copper plate installation space. By setting two limiting blocks 12, the two limiting blocks 12 abut against the high-voltage copper busbar during installation to prevent the high-voltage copper busbar from shaking, making the installation process of the high-voltage copper busbar simpler.

[0031] Furthermore, the copper busbar fixing component 4 includes a mounting nut 41 arranged on the mounting plate 11, and the battery pack base also includes a mounting bolt 42. The high-voltage copper busbar is placed in the copper plate mounting space, and the two limiting blocks 12 abut against the high-voltage copper busbar. Then, the mounting bolt 42 is inserted into the mounting nut 41 to lock the high-voltage copper busbar, thereby realizing high-voltage output.

[0032] In one possible implementation, a buckle 25 is arranged on the side of the fourth enclosure 24 away from the first enclosure 21. At least two buckles 25 are provided, and the buckles 25 are inserted into the mounting holes on other devices to fix the battery pack base.

[0033] In one possible implementation, the mounting plate 11 is provided with a weight-reducing groove 13. By providing the weight-reducing groove 13, the structural weight is reduced, thereby reducing material consumption. Furthermore, the shape of the weight-reducing groove 13 can be consistent with the model of the battery pack base to identify the battery pack base.

[0034] In one possible implementation, the mounting plate 11 is provided with protrusions 14 on both sides. The protrusions 14 are used to increase the electrical creepage distance, avoid insulation failure caused by high temperature, dust and other harsh environments when the high voltage copper busbar connected to the battery pack base is exposed to high temperature and dust, improve the stability of the battery pack base, delay the aging of the battery pack base, and extend the service life of the battery pack base.

[0035] Secondly, this utility model provides a battery pack, which includes a battery pack shell, a battery module, an end plate 7, and a battery pack base as described in the first aspect. The battery pack shell and the battery pack base are connected to form a battery pack outer shell, the end plate 7 is connected to the battery pack base, and the battery module and the end plate 7 are fixed inside the battery pack outer shell.

[0036] Furthermore, the battery pack also includes foam 8, one end of which abuts against the low-voltage connector and the other end of which abuts against the low-voltage connection part 2 (specifically, the first enclosure plate 21). By setting foam 8, direct collision or vibration between the low-voltage connector and the battery pack base is mitigated, preventing damage to the device caused by external impact, and preventing dust from entering the low-voltage connector, thus reducing the risk of short circuit caused by contamination.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A battery pack base, characterized in that, The device includes an integrated high-voltage connection part (1) and a low-voltage connection part (2). The high-voltage connection part (1) is provided with a copper busbar installation space (3) and a copper busbar fixing member (4) arranged in the copper busbar installation space (3). The low-voltage connection part (2) is provided with a connector installation space (5) and a connector fixing member (6) arranged in the connector installation space (5). The copper busbar fixing member (4) is used to fix the high-voltage copper busbar in the copper busbar installation space (3), and the connector fixing member (6) is used to fix the low-voltage connector in the connector installation space (5).

2. A battery pack base according to claim 1, characterized in that, The low-voltage connection part (2) includes a first enclosure (21), a second enclosure (22), a third enclosure (23) and a fourth enclosure (24). The first enclosure (21), the second enclosure (22), the third enclosure (23) and the fourth enclosure (24) are connected end to end to form a connector installation space (5). The first enclosure (21) is provided with a connector fixing part (6). The third enclosure (23) is integrally connected with the high-voltage connection part (1).

3. A battery pack base according to claim 2, characterized in that, The connector fixing member (6) includes a plurality of connector fixing holes (61) arranged on the first enclosure plate (21), and the battery pack base also includes a plurality of connector fixing bolts (62). The connector fixing bolts (62) are screwed into the connector fixing holes (61) and then connected to the low-voltage connector.

4. A battery pack base according to claim 2, characterized in that, The high-voltage connection part (1) includes a mounting plate (11) and two limiting blocks (12) arranged on the mounting plate (11). The mounting plate (11) is integrally connected with the third enclosure plate (23). The distance between the two limiting blocks (12) is equal to the width of the high-voltage copper busbar. The mounting plate (11) and the two limiting blocks (12) are connected to form the copper busbar installation space (3).

5. A battery pack base according to claim 4, characterized in that, The copper busbar fixing component (4) includes a mounting nut (41) arranged on the mounting plate (11), and the battery pack base also includes a mounting bolt (42), which is used to cooperate with the mounting nut (41) to fix the high voltage copper busbar.

6. A battery pack base according to claim 2, characterized in that, The fourth enclosure (24) has a buckle (25) on the side away from the first enclosure (21), and the buckle (25) is used to fix the battery pack base.

7. A battery pack base according to claim 4, characterized in that, The mounting plate (11) is provided with a weight-reducing groove (13).

8. A battery pack base according to claim 4, characterized in that, The mounting plate (11) has bosses (14) on both sides.

9. A battery pack, characterized in that, The battery pack includes a battery pack housing, a battery module, an end plate (7), and a battery pack base according to any one of claims 1-8. The battery pack housing and the battery pack base are connected to form a battery pack outer shell, the end plate (7) is connected to the battery pack base, and the battery module is fixed inside the battery pack outer shell along with the end plate (7).

10. A battery pack according to claim 9, characterized in that, The battery pack also includes foam (8), one side of which abuts against the low-voltage connector and the other side of which abuts against the low-voltage connection part (2).

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