Battery pack and vehicle

Abstract

The utility model provides a battery pack and a vehicle, the battery pack provided by the utility model comprises a shell and a quick-change connector socket arranged on the shell, and the quick-change connector socket is used for being plugged with a quick-change connector plug at a vehicle end; the quick-change connector socket is provided with an equipotential interface, and the equipotential interface is connected with the housing through a first conductive member. According to the battery pack disclosed by the utility model, the equipotential quick connection between the battery pack and the whole vehicle end can be realized directly through quick insertion of the quick-change connector when the battery of the vehicle is changed, so that the overall battery changing efficiency of the vehicle can be improved by improving the equipotential connection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery pack. Meanwhile, the utility model also relates to a vehicle equipped with the battery pack. Background Art

[0002] With the rapid development of power battery technology, the energy capacity density of battery packs has been significantly improved. However, due to the limitations of battery pack manufacturing materials and processes, new energy vehicles still have a gap in range compared to fuel vehicles. In order to make up for the gap in range, the energy replenishment solutions for electric vehicles have also tended to be diversified. At present, technologies that increase charging rates and technologies that replace batteries have become the two mainstream solutions. Compared with fast charging technology solutions, the use of battery replacement technology has significantly improved vehicle efficiency and brought convenience to people's travel.

[0003] Moreover, as the capacity of power battery packs is getting larger and larger, the equipotential between the vehicle and the battery pack is the key to avoiding electrical accidents caused by potential differences. However, traditional battery packs are often fixed to the lower shell through a bare braided copper wire, and then electrically connected to the vehicle. The connection process is complicated and slow, which increases the installation process during the battery replacement process for vehicles with fast battery replacement and reduces the battery replacement efficiency. In addition, the exposed braided copper wire is used as an equipotential connection wire. After being assembled with the vehicle, it has no protective structure and is in a state of wet and hot circulation for a long time, which poses a risk of failure. Utility Model Content

[0004] In view of this, the utility model aims to provide a battery pack, which is conducive to improving the rapid connection of the battery pack with the same potential as the vehicle end.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A battery pack comprises a shell, and a quick-change connector socket provided on the shell, wherein the quick-change connector socket is used for plugging with a quick-change connector plug at a vehicle end;

[0007] The quick-change connector socket is provided with an equipotential interface, and the equipotential interface is connected to the shell through a first conductive member.

[0008] Furthermore, the quick-change connector socket is provided with a high-voltage interface, a low-voltage interface and a limit column; the high-voltage interface is connected to the BDU in the battery pack, the low-voltage interface is connected to the BMS in the battery pack, and the limit column is used to prevent the quick-change connector socket and the quick-change connector plug from being misaligned.

[0009] Furthermore, the quick-change connector socket includes a seat body, a protrusion arranged on one side of the seat body, and a plug-in cavity formed on the protrusion, the equipotential interface, the high-voltage interface and the low-voltage interface are all located in the plug-in cavity, and the limit columns are two arranged relatively on both sides of the protrusion.

[0010] Furthermore, a sealing gasket is provided on the protruding portion; when the connector socket and the quick-change connector plug are plugged in, the sealing gasket is used to seal the plug-in cavity.

[0011] Furthermore, the high voltage interface is connected to the positive connection point of the BDU through a second conductive member, and is connected to the negative connection point of the BDU through a third conductive member; the first conductive member, the second conductive member and the third conductive member all use conductive bars.

[0012] Furthermore, a bracket is provided on the shell, and the first conductive member, the second conductive member and the third conductive member are all supported on the bracket.

[0013] Furthermore, the bracket is arranged on the shell through a base; the first conductive member is connected to the base through a fastener, and the bracket is provided with an avoidance hole for avoiding the fastener, and / or the second conductive member and the third conductive member are respectively connected to the bracket through fasteners.

[0014] Furthermore, a protective cover is clamped on the bracket, and at least the parts of the first conductive member, the second conductive member and the third conductive member supported on the bracket are located in the protective cover.

[0015] Furthermore, the bracket is provided with a plurality of limiting grooves, and the first conductive member, the second conductive member and the third conductive member are limited in the limiting grooves one by one.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The battery pack described in the utility model integrates the equipotential interface on the quick-change connector socket and provides a first conductive member to connect the equipotential interface and the shell. When the vehicle is replaced with a battery, the battery pack can be quickly connected to the vehicle end with the same potential directly through the quick insertion of the quick-change connector. This can improve the overall battery replacement efficiency of the vehicle by improving the equipotential connection efficiency.

[0018] In addition, by setting the limit column, the quick-change connector socket and the quick-change connector plug can be prevented from being damaged due to misaligned insertion. The setting of the plug-in cavity is conducive to the hidden design of the equipotential interface, high-voltage interface and low-voltage interface, avoiding direct contact between the operator's hands and the interfaces. At the same time, the limit columns are arranged relatively on both sides of the protrusion, which is conducive to ensuring the effect of preventing the quick-change connector socket and the quick-change connector plug from being mis-inserted.

[0019] Secondly, the provision of the sealing gasket is conducive to achieving the sealing when the quick-change connector socket and the quick-change connector plug are plugged in, and improving the sealing when the battery pack is plugged in to the vehicle end. The provision of a bracket is conducive to supporting and fixing the first conductive member, the second conductive member and the third conductive member to improve the structural stability.

[0020] In addition, the first conductive member is connected to the base through a fastener, and an avoidance hole is provided, which is conducive to ensuring the reliability of the connection between the first conductive member and the base and the shell, and then ensuring the reliability of the equipotential connection. The provision of the protective cover can prevent external metal foreign matter from causing a short circuit between the conductive members. The provision of each limit groove is conducive to the limitation of each conductive member, and increases the electrical clearance and creepage distance between adjacent conductive members to ensure safe use.

[0021] Another object of the present invention is to provide a vehicle, on which the battery pack as described above is provided.

[0022] The vehicle described in the utility model and the above-mentioned battery pack have the same beneficial effects as compared with the traditional technology, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the battery pack according to an embodiment of the utility model;

[0025] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 3 for Figure 2 A schematic diagram of a portion of the structure shown;

[0027] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0028] Figure 5 for Figure 3 a rear view of the structure shown;

[0029] Description of reference numerals:

[0030] 01. Shell; 02. Protection cavity; 03. BDU; 04. Battery module;

[0031] 10. quick-change connector socket; 101. seat body; 102. protrusion; 103. plug-in cavity;

[0032] 11. Equipotential interface; 12. High voltage interface; 13. Low voltage interface; 14. Limiting column; 15. First conductive member; 16. Second conductive member; 17. Third conductive member; 18. Bracket; 181. Limiting groove; 182. Hook; 19. Fastener; 110. Protective cover; 111. Base;

[0033] 21. Main wiring harness; 22. Branch wiring harness; 23. Water cooling pipe. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] Embodiment 1

[0039] The present embodiment relates to a battery pack, which can achieve a quick connection of the battery pack with the same potential as the vehicle end by quickly plugging in a quick-change connector when replacing the battery in the vehicle, thereby improving the battery replacement efficiency of the vehicle.

[0040] In terms of overall structure, Figures 1 to 5 As shown, the battery pack of this embodiment includes a housing 01 and a quick-change connector socket 10 provided on the housing 01, and the quick-change connector socket 10 is used to be plugged with a quick-change connector plug on the vehicle end. The quick-change connector socket 10 is provided with an equipotential interface 11, and the equipotential interface 11 is connected to the housing 01 through a first conductive member 15.

[0041] It is worth noting that the arrangement position of the quick-change connector socket 10 of this embodiment can be set according to the overall arrangement requirements of the battery pack, for example Figure 1 As shown, a protective cavity 02 may be preferably provided at the front end of the housing 01 , so that the interface connected to the vehicle end such as the quick-change connector socket 10 may be provided in the protective cavity 02 for protection.

[0042] Of course, in the specific implementation, in addition to directly setting the protection cavity 02 at the front end of the shell 01, a protection box can also be screwed or welded at the front end of the shell 01 to form a protection cavity 02 in the protection box, which can also be used to install, arrange and protect electrical components such as the quick-change connector socket 10.

[0043] Moreover, when necessary, the quick-change connector plug is provided with an equipotential matching interface connected to the vehicle end. When the quick-change connector plug is plugged into the quick-change connector socket 10, the equipotential interface 11 is matched with the equipotential matching interface adapter to achieve equipotential connection between the battery pack and the vehicle end.

[0044] Furthermore, the related structures not mentioned in the battery pack, quick-change connector socket 10 and quick-change connector plug in this embodiment can all refer to the common structures of battery packs and quick-change connectors in the prior art, such as Figure 1 As shown in the figure, the battery pack includes a BDU03 and a plurality of battery cell modules 04 arranged in a shell 01, which will not be described in detail here.

[0045] Based on the above overall introduction, specifically, in this embodiment, as a preferred implementation form, see Figure 3 As shown, the quick-change connector socket 10 is provided with a high-voltage interface 12, a low-voltage interface 13 and a limit post 14. The high-voltage interface 12 is connected to the BDU03 in the battery pack, the low-voltage interface 13 is connected to the BMS in the battery pack, and the limit post 14 is used to prevent the quick-change connector socket 10 from being misaligned with the quick-change connector plug.

[0046] Here, by providing the limiting column 14, it is possible to prevent the quick-change connector socket 10 and the quick-change connector plug from being damaged due to misaligned insertion.

[0047] Furthermore, as a preferred implementation form, the quick-change connector socket 10 of this embodiment includes a seat body 101, a protrusion 102 arranged on one side of the seat body 101, and a plug-in cavity 103 formed on the protrusion 102, the equipotential interface 11, the high-voltage interface 12 and the low-voltage interface 13 are all located in the plug-in cavity 103, and the limit columns 14 are two relatively arranged on both sides of the protrusion 102.

[0048] It can be understood that the setting of the plug-in cavity 103 is conducive to the hidden design of the equipotential interface 11, the high-voltage interface 12 and the low-voltage interface 13, avoiding direct contact between the operators' hands and the interfaces, and improving the safety of the quick-change connector socket 10. At the same time, the limit columns 14 are two relatively arranged on both sides of the protrusion 102, which is conducive to ensuring the effect of preventing the quick-change connector socket 10 and the quick-change connector plug from being inserted incorrectly.

[0049] Based on the requirement of safety in connection between the battery pack and the vehicle end, in this embodiment, as a preferred implementation form, a sealing gasket is provided on the protrusion 102, and when the change connector socket and the quick change connector plug are plugged in, the sealing gasket is used to form a seal for the plug-in cavity 103. This is conducive to achieving the sealing when the quick change connector socket 10 and the quick change connector plug are plugged in, and improving the sealing when the battery pack and the vehicle end are plugged in.

[0050] In a specific implementation, the sealing gasket of this embodiment can be sleeved on the protruding portion 102. When the connector socket and the quick-change connector plug are plugged in, the sealing gasket is sandwiched between the two to form a seal.

[0051] In addition, in this embodiment, as a preferred implementation form, still refer to Figure 3 As shown, the high voltage interface 12 is connected to the positive connection point of the BDU03 through the second conductive member 16 , and is connected to the negative connection point of the BDU03 through the third conductive member 17 .

[0052] Secondly, the first conductive member 15, the second conductive member 16 and the third conductive member 17 are all conductive bars. In specific implementation, the conductive bars can preferably be copper bars to have good conductive performance and structural stability.

[0053] Furthermore, as a preferred embodiment, see Figure 3 and Figure 4 As shown, a bracket 18 is provided on the housing 01 of this embodiment, and the first conductive member 15, the second conductive member 16 and the third conductive member 17 are all supported on the bracket 18. The main benefit of providing the bracket 18 is that it is conducive to supporting and fixing the first conductive member 15, the second conductive member 16 and the third conductive member 17, preventing the conductive members from shaking and being damaged, so as to improve the structural stability.

[0054] To facilitate the installation of the bracket 18 on the shell 01, in this embodiment, as a preferred implementation form, the bracket 18 is arranged on the shell 01 through the base 111, the first conductive member 15 is connected to the base 111 through the fastener 19, and the bracket 18 is provided with an avoidance hole for avoiding the fastener 19.

[0055] It is understandable that the first conductive member 15 is connected to the base 111 via a fastener 19 and a relief hole is provided, which helps to ensure the reliability of the connection between the first conductive member 15 and the base 111 and the shell 01, thereby ensuring the reliability of the equipotential connection.

[0056] At the same time, and also as a preferred implementation form, in this embodiment, the second conductive member 16 and the third conductive member 17 are connected to the bracket 18 via fasteners 19 respectively to ensure the connection reliability between the second conductive member 16 and the third conductive member 17 and the bracket 18 .

[0057] In specific implementation, the bracket 18 of this embodiment can be made of insulating material, and the base 111 can be made of metal material. For example, the bracket 18 is made of plastic material commonly used by those skilled in the art. The fastener 19 of this embodiment can preferably be a bolt, and the bracket 18 and the base 111 can be connected by the fastener 19, and the base 111 and the housing 01 can be welded to ensure the connection stability.

[0058] In addition, in this embodiment, as a preferred implementation form, a protective cover 110 is clamped on the bracket 18, and at least the first conductive member 15, the second conductive member 16 and the third conductive member 17 supported on the bracket 18 are located in the protective cover 110. Such a configuration can prevent external metal foreign matter from causing a short circuit between the conductive members.

[0059] When implementing it, Figure 4 As shown, the second conductive member 16 and the third conductive member 17 of this embodiment are respectively arranged on both sides of the first conductive member 15, and the bracket 18 is provided with hooks 182 arranged on both sides of the first conductive member 15, and each hook 182 is used to engage with the slot on the protective cover 110.

[0060] In addition, in this embodiment, as a preferred implementation form, continue to refer to Figure 4 As shown, the bracket 18 is provided with a plurality of limiting grooves 181 , and the first conductive member 15 , the second conductive member 16 and the third conductive member 17 are limited in the limiting grooves 181 one by one.

[0061] The arrangement of the limiting grooves 181 facilitates the positioning of the conductive parts and increases the electrical clearance and creepage distance between adjacent conductive parts, thereby ensuring safe use. In a specific structure, a plurality of upwardly protruding protrusions may be arranged on the bracket 18, the limiting grooves 181 are formed between two adjacent protrusions, and the hooks 182 may be preferably arranged on the protrusions, so as to improve the rationality of the structural design of the bracket 18.

[0062] It is worth mentioning that see Figure 3 and Figure 5 As shown, the low-voltage interface 13 of this embodiment is also connected to a main wiring harness 21 connected to the BMS in the battery pack to ensure the transmission of battery pack information. At the same time, the main wiring harness 21 is provided with a branch wiring harness 22 for connecting the water cooling pipe 23, so as to control the cooling flow in the water cooling pipe 23 through the BMS.

[0063] The battery pack of this embodiment integrates the equipotential interface 11 on the quick-change connector socket 10, and provides a first conductive member 15 to connect the equipotential interface 11 and the shell 01. When the vehicle is replaced with a battery, the battery pack can be quickly connected to the vehicle end with the same potential directly through the quick plug of the quick-change connector. This can improve the equipotential connection efficiency, reduce the installation process and time of vehicle battery replacement, achieve plug-and-go, and improve battery replacement efficiency.

[0064] At the same time, when the entire vehicle and the battery pack are connected at the same potential, even if the insulation between the positive and negative poles of the battery pack and the shell 01 fails due to a fault and people come into contact with exposed metal parts, no electric shock accidents will occur, effectively improving the safety of electricity use of the entire vehicle.

[0065] Embodiment 2

[0066] This embodiment relates to a vehicle, which is provided with the battery pack in the first embodiment. Specifically, the battery pack is provided with the quick-change connector socket 10 in the first embodiment, and the vehicle is provided with a quick-change connector plug. If necessary, the quick-change connector plug is provided with an equipotential matching interface adapted to the equipotential interface 11. When the quick-change connector plug is plugged into the quick-change connector socket 10, the equipotential interface 11 is plugged into the equipotential matching interface, so that the rapid replacement of the battery pack and the equipotential connection between the vehicle and the battery pack can be realized at the same time.

[0067] The vehicle of this embodiment is provided with the battery pack of the first embodiment, and can achieve a quick connection of the battery pack with the same potential as the vehicle end by directly plugging in the quick-change connector when replacing the vehicle battery, thereby ensuring electrical safety and improving the battery replacement efficiency, thereby enhancing the market competitiveness of the vehicle.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: It includes a housing and a quick-change connector socket provided on the housing, wherein the quick-change connector socket is used for plugging with a quick-change connector plug at the vehicle end; The quick-change connector socket is provided with an equipotential interface, and the equipotential interface is connected to the shell through a first conductive member.

2. The battery pack according to claim 1, characterized in that: The quick-change connector socket is provided with a high-voltage interface, a low-voltage interface and a limit column; The high-voltage interface is connected to the BDU in the battery pack, the low-voltage interface is connected to the BMS in the battery pack, and the limit column is used to prevent the quick-change connector socket and the quick-change connector plug from being misaligned.

3. The battery pack according to claim 2, characterized in that: The quick-change connector socket includes a seat body, a protrusion arranged on one side of the seat body, and a plug-in cavity formed on the protrusion. The equipotential interface, the high-voltage interface and the low-voltage interface are all located in the plug-in cavity, and the limit columns are two arranged relatively on both sides of the protrusion.

4. The battery pack according to claim 3, characterized in that: A sealing gasket is provided on the protruding portion; When the connector socket is plugged into the quick-change connector plug, the sealing gasket is used to seal the plug-in cavity.

5. The battery pack according to any one of claims 2 to 4, characterized in that: The high voltage interface is connected to the positive connection point of the BDU through a second conductive member, and is connected to the negative connection point of the BDU through a third conductive member; The first conductive member, the second conductive member and the third conductive member are all conductive bars.

6. The battery pack according to claim 5, characterized in that: A bracket is provided on the shell, and the first conductive member, the second conductive member and the third conductive member are all supported on the bracket.

7. The battery pack according to claim 6, characterized in that: The bracket is arranged on the shell through a base; The first conductive member is connected to the base via a fastener, and the bracket is provided with an escape hole for avoiding the fastener, and / or the second conductive member and the third conductive member are respectively connected to the bracket via fasteners.

8. The battery pack according to claim 6, characterized in that: A protective cover is clamped on the bracket, and at least the parts of the first conductive member, the second conductive member and the third conductive member supported on the bracket are located in the protective cover.

9. The battery pack according to claim 6, characterized in that: The bracket is provided with a plurality of limiting grooves, and the first conductive member, the second conductive member and the third conductive member are limited in the limiting grooves one by one.

10. A vehicle, characterized in that: The vehicle is provided with the battery pack according to any one of claims 1 to 9.

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