WO2024017267A1

WO2024017267A1 - Wiring structure of battery pack and battery pack

Info

Publication number: WO2024017267A1
Application number: PCT/CN2023/107999
Authority: WO
Inventors: 郑振华
Original assignee: 厦门海辰储能科技股份有限公司
Priority date: 2022-07-18
Filing date: 2023-07-18
Publication date: 2024-01-25
Also published as: CN218513556U

Abstract

A wiring structure (100) of a battery pack (200) and a battery pack (200) having a wiring structure (100). The wiring structure (100) comprises: a conductive member (10), the conductive member (10) being configured to be electrically connected to a battery cell module (210) of the battery pack (200); and an insulating member (20), the insulating member (20) being sleeved on the conductive member (10), the insulating member (20) comprising a first sleeve body (21) located in a box body (220) of the battery pack (200), and the sidewall of the first sleeve body (21) facing the battery cell module (210) being internally provided with a cushioning structure (212).

Description

Battery pack wiring structure and battery pack

priority information

This application requests the priority and rights of the patent application with patent application number 202221847900.6, which was submitted to the State Intellectual Property Office of China on July 18, 2022, and its full text is incorporated herein by reference.

Technical field

The present application relates to the technical field of power battery packs, and more specifically, to a wiring structure of a battery pack and a battery pack.

Background technique

The power battery pack is one of the key core components of electric vehicles. The protection of high-voltage plug-ins inside the power battery pack is the focus of the industry, especially the protection of the high-voltage end electrical connection of high-voltage plug-ins.

In some related technologies, by arranging anti-collision blocks, the anti-collision block structure can completely cover the high-voltage terminals of the positive and negative poles of the battery pack in the box within the inner cavity of the anti-collision block, thereby separating the high-voltage exposed parts from surrounding parts. Completely separated to achieve the effect of improving the safety of the battery pack. However, when the battery module in the box is squeezed and falls, there is still a risk that the anti-collision block will be scratched and the conductive parts will leak out, which will lead to a short circuit between the conductive parts and the end plate of the battery module, which is more serious. ground, causing the battery pack to undergo thermal runaway.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of this application is to propose a wiring structure for a battery pack.

Another object of the present application is to provide a battery pack with the above-mentioned wiring structure.

According to the wiring structure of the embodiment of the present application, the wiring structure includes: a conductive member configured to be electrically connected to the cell module of the battery pack; an insulating member, the insulating member is sleeved on the The conductive member, the insulating member includes a first cover body located in the box of the battery pack, and a buffer structure is provided in the side wall of the first cover body facing the battery core module.

In addition, the wiring structure according to the above-mentioned embodiments of the present application may also have the following additional technical features:

According to some embodiments of the present application, the buffer structure includes a plurality of holes provided in the side wall.

According to some embodiments of the present application, the side wall includes a first wall, a second wall and a plurality of connecting walls, the first wall and the second wall are parallel to each other and arranged at intervals, and the plurality of connecting walls are arranged between the first wall and the second wall and each connecting wall connects the first wall and the second wall to connect the first wall and the second wall. The space is divided into a plurality of holes, any two adjacent connecting walls extend in different directions, and each connecting wall extends obliquely relative to the first wall.

According to some embodiments of the present application, the conductive member has a first terminal, the first sleeve is provided with an opening, and the opening is opposite to the first terminal so that the first terminal is connected to the first terminal. The battery core module is electrically connected. The end of the first sleeve is also provided with a mounting plate. The mounting plate is configured to be connected to the panel of the box. The opening is spaced apart from the mounting plate. Open a scheduled gap.

According to some embodiments of the present application, at least one annular rib is provided on the outer peripheral surface of the first sleeve body, and the annular rib is located between the opening and the mounting plate.

According to some embodiments of the present application, the insulation member is passed through the panel of the box and further includes a second cover body located outside the box, and the first cover body is connected to the second cover body. , the conductive member has a second terminal, and the second terminal extends out of the second sleeve to be electrically connected to an external connector.

According to some embodiments of the present application, the wiring structure further includes: a protective cover, the protective cover is detachably covered on the second sleeve body to define an accommodation cavity, and the second terminal is located in the accommodation cavity. , the side wall of the protective cover is provided with an opening.

According to some embodiments of the present application, the insulating member and the conductive member are integrally injection molded.

The battery pack according to the present application includes: a box and a battery core module arranged in the box; a wiring structure, the wiring structure is the wiring structure of the battery pack according to the embodiment of the present application, and the insulating member is installed on the The panel of the box.

According to some embodiments of the present application, the gap between the conductive member and the battery core module is greater than or equal to 18 mm.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a schematic structural diagram of a battery pack according to an embodiment of the present application;

Figure 2 is an exploded view of Figure 1;

Figure 3 is a schematic structural diagram of an insulator according to an embodiment of the present application;

Figure 4 is an exploded view of Figure 3;

Figure 5 is a right view of Figure 3;

FIG. 6 is an enlarged structural schematic diagram of the area circled A in FIG. 3 .

Reference signs:
wiring structure 100;
Conductive member 10; first terminal 11; second terminal 12; first plate 13; second plate 14;
Insulating member 20; first sleeve body 21; side wall 211; first wall 2111; second wall 2112; connecting wall 2113; buffer structure 212; opening 213; mounting plate 214; first fixing hole 215; second set Body 22; reinforcement 226; second Fixed hole 225; protective cover 23; opening 231; hole 24; annular rib 25;
Battery pack 200; cell module 210; box 220; lower box 221; box upper cover 222; panel 2211; installation cavity
202; fan 223.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

In the description of this application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply the device or device referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations on the application.

In the description of this application, "first feature" and "second feature" may include one or more of these features, and "plurality" means two or more. The first feature is in the "second feature" "Above" or "below" may include that the first and second features are in direct contact, or may include that the first and second features are in contact not directly but through another feature between them, the first feature being in contact with the second feature “Above,” “above,” and “above” include the first feature being directly above or diagonally above the second feature, or simply means that the first feature is higher horizontally than the second feature.

The wiring structure 100 and the battery pack 200 of the battery pack 200 according to the embodiment of the present application are described below with reference to the accompanying drawings.

Referring to FIGS. 1-6 , the battery pack 200 according to the embodiment of the present application may include: a box 220 , a cell module 210 and a wiring structure. For example, the box 220 may be a rectangular box, including a lower box 221 and an upper box cover 222 , and the lower box 221 may include a plurality of panels 2211 . Among them, the panel 2211 at one end of the lower box 221 along the length direction of the box 220 (the front-rear direction as shown in FIG. 1 ) can be recorded as the front panel 2211 . For example, in a specific application process of the battery pack 200, the front panel 2211 may face the direction of the head of the vehicle.

In addition, the lower box 221 can construct an installation cavity 202, and the battery module 210 can be disposed in the installation cavity 202 to achieve a stable charging and discharging working state. For example, two battery core modules 210 may be disposed in the installation cavity 202, which may be respectively labeled as module A and module B. Module A and module B are arranged along the width direction of the box 220 (as shown in Figure 1 (left and right directions as shown) are arranged side by side to meet the needs of power storage and release.

In addition, in some embodiments, as shown in FIG. 1 , a fan 223 and a BMS (Battery Management System) may be provided on the front panel 2211 . Among them, the fan 223 can reduce the heat released during the operation of the battery module 210 in the box 220, and avoid heat accumulation leading to thermal runaway. BMS can improve battery pack utilization 200 rate, preventing the battery pack 200 from overcharging and over-discharging, so as to extend the service life of the battery pack 200.

In addition, the wiring structure of the battery pack 200 can be the wiring structure 100 according to the embodiment of the present application. The wiring structure 100 can be installed on the panel 2211 of the box 220. Specifically, the insulating member 20 of the wiring structure 100 can be installed on the box 220. Panel 2211, the conductive component 10 of the wiring structure 100 can be passed through the panel 2211 of the box 220. For example, the insulating member 20 can be installed on the front panel 2211 of the box 220. In some embodiments where the front panel 2211 is provided with a fan 223, two wiring structures 100 may be provided. The two wiring structures 100 are arranged side by side along the width direction of the box 220 to form the positive wiring structure and the negative wiring structure of the battery pack 200. . The two wiring structures 100 are arranged on the upper right side of the fan 223, which can avoid position interference and make the structural design of the battery pack 200 more reasonable.

The wiring structure 100 of the embodiment of the present application will be described below with reference to Figures 3-4.

The wiring structure 100 of the battery pack 200 according to the embodiment of the present application may include: a conductive member 10 and an insulating member 20 .

Specifically, the wiring structure 100 can be installed on the box 220 of the battery pack 200 , and the conductive member 10 of the wiring structure 100 can be configured to be electrically connected to the cell module 210 of the battery pack 200 . The electricity stored in the battery module 210 can be transferred to external connection devices, such as connectors, through the conductive member 10 to meet specific working conditions. In addition, in the embodiment where a plurality of battery core modules 210 are provided in the box 220, the conductive member 10 can also play a role in collecting electric power.

In order to avoid the short circuit between the conductive member 10 and the end plate of the battery module 210, for example, to avoid the deformation of the panel 2211 when the box 220 is squeezed and dropped, resulting in the short circuit between the conductive member 10 and the end plate of the battery module 210, such as As shown in FIG. 3 , the insulating member 20 can be sleeved on the conductive member 10 . Specifically, the insulating member 20 has electrical insulation characteristics. The provision of the insulating member 20 can effectively prevent the conductive member 10 from being in direct contact with the end plate of the battery module 210 and causing a short circuit. For example, it can avoid causing module test failure. Moreover, the electrical insulation properties of the insulating member 20 can effectively prevent the box from being charged, thereby improving the safety of the battery pack 200.

In addition, the embodiment of the present application does not place any special restrictions on the material of the insulating member 20. For example, the insulating member 20 can be made of rubber, plastic, etc. In some embodiments, the insulating part 20 is a plastic part. Plastic parts have low cost and can effectively reduce processing costs. At the same time, plastic parts have good insulation properties. Moreover, plastic parts have strong plasticity and can be processed to make the insulating part 20 more adaptable.

It should be noted that the insulating member 20 can be completely located in the box 220 or partially located in the box 220. All of these can meet the needs of isolating the conductive member 10 and the end plate of the battery module 210. All of them are used in this application. within the scope of protection. In some embodiments in which the insulating member 20 is partially located in the box 220, as shown in FIG. 2, the insulating member 20 may include a first sleeve body 21 located in the box body 220, and the first sleeve body 21 has a structure facing the battery core module. The side wall 211 of 210 can play the role of isolating the conductive member 10 and the end plate of the battery module 210. Therefore, it is possible to avoid direct contact between the conductive member 10 and the end plate of the battery module 210 to cause a short circuit.

In some related technologies, by setting up anti-collision blocks, the anti-collision block structure can completely cover the high-voltage terminals of the positive and negative poles of the battery pack in the box within the inner cavity of the anti-collision block, thereby completely separating the high-voltage exposed parts from surrounding parts. spaced to achieve improved battery The effect of package usage security. However, when the battery module in the box is squeezed and falls, there is still a risk that the anti-collision block will be scratched and the conductive parts will leak out, which will lead to a short circuit between the conductive parts and the end plate of the battery module, which is more serious. ground, causing the battery pack to undergo thermal runaway.

In this application, as shown in FIGS. 3 and 4 , a buffer structure 212 may be provided in the side wall 211 of the first housing 21 facing the battery module 210 . Specifically, the buffer structure 212 can absorb energy generated due to collision or impact. For example, the buffer structure 212 can deform itself to achieve an energy absorption effect. Therefore, when the battery module 210 is squeezed and dropped, for example, the A module in the box 220 falls, the end plate of the battery module 210 can be prevented from scratching the first housing 21 and the first housing 21 can be prevented from being damaged. 21 is damaged and insulation failure occurs, thereby preventing the conductive member 10 from being exposed due to insulation failure, causing the conductive member 10 to be short-circuited with the end plate, thereby greatly improving the safety of the battery pack 200.

Also, in some embodiments, the buffer structure 212 may have a certain thickness. Therefore, when the battery module 210 falls, it is less likely to scratch the first sleeve body 21 , and the insulating member 20 can achieve a better effect of isolating the conductive member 10 and the end plate.

In addition, by providing the buffer structure 212, the buffer structure 212 has the function of buffering and shock absorption. In some embodiments, when the battery module 210 falls and comes into contact with the buffer structure 212, the buffer structure 212 can prevent the battery module 210 from causing irreversible damage to the insulator 20 through buffering and shock absorption, thereby helping to improve insulation. Part 20 service life.

According to the wiring structure 100 of the embodiment of the present application, a buffer structure 212 is provided on the side wall 211 of the first housing 21 facing the battery core module 210. The buffer structure 212 can absorb the energy generated by impact through deformation, etc., thereby preventing the battery core from molding. The end plate of the group 210 scratches the first housing 21 and causes the conductive part 10 to be exposed. This prevents the conductive part 10 from being exposed and short-circuiting the end plate, thus ensuring the effective conduct of the module test and improving the safety of the battery pack 200. sex.

Since the wiring structure 100 according to the embodiment of the present application has the above-mentioned beneficial technical effects, the vehicle according to the embodiment of the present application provides a buffer structure 212 on the side wall 211 of the first cover body 21 facing the battery core module 210. The structure 212 can absorb the energy generated by the impact through deformation, etc., to prevent the end plate of the battery module 210 from scratching the first housing 21 and causing the conductive member 10 to be exposed, and to prevent the conductive member 10 from being exposed and short-circuited with the end plate, thereby causing a short circuit. This can ensure effective module testing and improve the safety of the battery pack 200.

It should be noted that the embodiment of the present application does not place any special restrictions on the specific structure of the buffer structure 212. For example, the buffer structure 212 may be a hole structure, or the side wall 211 may be filled with rubber, sponge or other flexible materials. These are all Can achieve buffering effect.

For example, as shown in FIG. 6 , the buffer structure 212 includes a plurality of holes 24 provided in the side wall 211 . By providing a plurality of holes 24 , the structural density of the side wall 211 can be effectively reduced, thereby reducing the stiffness of the side wall 211 . When the end plate collides with the buffer structure 212, the buffer structure 212 can deform to absorb the energy generated by the collision to achieve an energy-absorbing buffering effect, which can effectively prevent the first cover 21 from being damaged and causing the conductive member 10 to be exposed. Moreover, in some embodiments, instead of using materials such as rubber and sponge to achieve a buffering effect, providing a plurality of holes 24 on the side wall 211 can make the buffer structure 212 have a certain structural strength. In other words, the buffer structure 212 has better durability, and the hole structure can be reused many times. It is beneficial to improve the service life of the buffer structure 212.

The embodiments of the present application do not place special restrictions on the hole structure. In some specific embodiments, as shown in Figures 3, 4 and 6, the side wall 211 may include a first wall 2111, a second wall 2112 and multiple connections. The wall 2113 can construct a hole structure by arranging the first wall surface 2111, the second wall surface 2112 and a plurality of connecting walls 2113. The structure is simple and easy to process.

Specifically, the first wall surface 2111 and the second wall surface 2112 are parallel to each other and arranged at intervals, that is, there is a certain space between the first wall surface 2111 and the second wall surface 2112. A plurality of connecting walls 2113 may be provided between the first wall 2111 and the second wall 2112, and each connecting wall 2113 connects the first wall 2111 and the second wall 2112, thereby connecting the first wall 2111 and the second wall. The space between 2112 is divided into a plurality of holes 24, and the plurality of holes 24 can extend along the height direction of the first sleeve body 21 (up and down direction as shown in Figure 3) to achieve the function of buffering and energy absorption.

In some embodiments in which the side wall 211 includes multiple connecting walls 2113, as shown in FIGS. 3 and 4 , the extension directions of any two adjacent connecting walls 2113 are different. In other words, any two adjacent connecting walls 2113 are not parallel and are arranged at a certain angle. Moreover, each connecting wall 2113 extends obliquely relative to the first wall surface 2111 . The first wall surface 2111 and the second wall surface 2112 are arranged in parallel, and each connecting wall 2113 also extends obliquely relative to the second wall surface 2112. Therefore, a hole 24 in a shape similar to a triangle or a trapezoid can be formed in the space between the first wall 2111 and the second wall 2112 .

In some specific embodiments, as shown in FIGS. 3 and 6 , the side wall 211 may include a first connecting wall, a second connecting wall, a third connecting wall and a fourth connecting wall. Moreover, the first connecting wall, the second connecting wall, the third connecting wall and the fourth connecting wall are sequentially arranged along the width direction of the first sleeve body 21 (the left and right direction as shown in FIG. 3 ). Wherein, the first connecting wall is parallel to the third connecting wall, and the second connecting wall is parallel to the fourth connecting wall. Thus, five generally triangular hole structures can be formed between the first wall 2111 and the second wall 2112 . While playing a buffering and energy-absorbing role, the triangular holes 24 have strong structural stability, so that the buffer structure 212 is not prone to large deformation, and irreversible structural damage to the buffer structure 212 can be avoided.

According to some embodiments of the present application, as shown in FIG. 4 , the conductive member 10 may have a first terminal 11 , and the first sleeve 21 may be provided with an opening 213 . Moreover, the opening 213 is opposite to the first terminal 11 so that the first terminal 11 is electrically connected to the battery module 210 .

Specifically, in some embodiments, the conductive member 10 may be bent and generally configured into an L shape. The bent conductive member 10 may include a first plate body 13 and a second plate body 14. The first plate body 13 may include a first plate body 13 and a second plate body 14. The terminal 11 and the first terminal 11 may be provided with a through-hole structure, and an annular protrusion is provided on the edge of the through-hole structure.

In addition, the opening 213 can open upward along the height direction of the first sleeve body 21 , and the first sleeve body 21 is also provided with a first fixing hole 215 opposite to the opening 213 . The annular protrusion can extend into the first fixing hole 215 , and the first fixing hole 215 can limit the position of the first terminal 11 . In some specific embodiments, structures such as screws can be inserted into the through-hole structure and the first fixing hole 215 . On the one hand, fasteners such as screws can fix and install the conductive component 10 . On the other hand, the fastener can be electrically connected to the battery module 210 to achieve the effect of transmitting current. The operation Convenient and easy to replace.

Moreover, in some embodiments of the present application, as shown in FIG. 3 , the end of the first housing 21 may also be provided with a mounting plate 214 , and the mounting plate 214 is configured to be connected to the panel 2211 of the box 220 . By providing the mounting plate 214, the insulating member 20 can be installed on the box 220, thereby realizing the installation and fixation of the wiring structure 100. In addition, providing the mounting plate 214 is beneficial to increasing the contact area between the insulating member 20 and the panel 2211, making the installation of the insulating member 20 more stable. Moreover, the mounting plate 214 can be made of the same material as the first cover body 21, such as plastic material.

It should be noted that the mounting plate 214 can be located outside the panel 2211 (that is, outside the box 220 ) or inside the panel 2211 (that is, inside the box 220 ), all of which can achieve the installation effect of the insulating member 20 .

In some specific embodiments, the mounting plate 214 may be a rectangular plate. In addition, a screw hole may be provided on the mounting plate 214 near the four corners, and corresponding screw holes may be provided on the panel 2211 of the box 220 . Therefore, the insulating member 20 can be installed on the box 220 through screws. The installation effect that can be achieved is stable, and the installation process is very convenient.

In addition, in order to improve the safety of use of the battery pack 200, the opening 213 and the mounting plate 214 may be separated by a predetermined gap. As a result, the mounting plate 214 and the panels connected to the mounting plate 214 can be prevented from being polarized, causing the mounting plate 214 and the structures around the mounting plate 214 to become electrified, thereby effectively improving the safety performance of the battery pack 200 .

In order to further improve the safety of use of the battery pack 200, as shown in FIG. 5, at least one annular rib 25 may be provided on the outer peripheral surface of the first sleeve body 21. Moreover, the annular rib 25 is located between the opening 213 and the mounting plate 214 . Specifically, by providing annular ribs 25, a concave and convex structure can be formed between the opening 213 and the mounting plate 214, thereby effectively increasing the creepage distance in the direction from the opening 213 to the mounting plate 214. Moreover, under the condition of ensuring a reasonable structural design of the insulating member 20, the greater the number of annular ribs 25, the greater the creepage distance. This can more effectively avoid polarization of the mounting plate 214 and the panel, greatly improving the safety of using the battery pack 200 .

In some embodiments, as shown in FIGS. 1 and 3 , the insulating member 20 can be passed through the panel 2211 , and the insulating member 20 can be sleeved on the conductive member 10 , which can avoid direct contact with the panel when the conductive member 10 is passed through the panel 2211 . The contact makes the panel 2211 electrified, and the insulating member 20 can play an insulating and protective effect, which can improve the safety of the battery pack 200.

Moreover, the insulating member 20 may also include a second sleeve body 22 located outside the box body 220, and the first sleeve body 21 may be connected to the second sleeve body 22. The mounting plate 214 may be located between the first sleeve body 21 and the second sleeve body 22 . For example, the conductive component 10 and the insulating component 20 can be integrally injection molded. Thus, on the one hand, the installation steps can be reduced. On the other hand, the insulation effect achieved by the insulating member 20 is better.

In some specific embodiments, as shown in FIG. 3 , the second sleeve body 22 may include a cylinder. Moreover, reinforcing ribs 226 can be arranged at even intervals on the outer circumferential surface of the second cover body 22, and the reinforcing ribs 226 are connected to the mounting plate 214 to improve the structural strength of the mounting plate 214 and make the connection between the wiring structure 100 and the panel more reliable, and It is beneficial to make the connection effect between the first sleeve body 21 and the second sleeve body 22 more stable.

In order to transmit the power in the battery module 210 to an external connector, the conductive member 10 may have a second terminal 12, and the second terminal 12 extends out of the second sleeve 22 to connect with the external connector. In some embodiments where the conductive member 10 includes the second plate 14 , the second plate 14 includes the second terminal 12 . Moreover, the structure of the second terminal 12 is substantially the same as that of the first terminal 11 .

In addition, the second sleeve body 22 can be provided with a second fixing hole 225, and the second terminal 12 is provided with a through-hole structure. The edge of the through-hole structure is provided with an annular protrusion, and the annular protrusion can extend into the second fixing hole. position 225, so that the second fixing hole position 225 can limit the position of the second terminal 12. In some specific embodiments, fasteners such as screws can be inserted into the through-hole structure and the second fixing hole 225 . On the one hand, the fastener can play a role in fixing and installing the conductive component 10 . On the other hand, the second terminal 12 can be electrically connected to an external connector through fasteners to achieve power supply effect, and is easy to operate and replace.

In order to improve the safety of the electrical connection between the second terminal 12 and the external connector, as shown in FIG. 3 , the wiring structure 100 may further include a protective cover 23 . Specifically, the protective cover 23 covers the second sleeve body 22, and the two cooperate to define a receiving cavity, and the second terminal 12 can be located in the receiving cavity. Therefore, the protective cover 23 can prevent the second terminal 12 from being exposed, and prevent the second terminal 12 from being short-circuited with the installation environment during specific applications, thereby improving the safety of the battery pack 200 .

Moreover, as shown in FIG. 5 , the side wall of the protective cover 23 may be provided with an opening 231 . For example, the opening 231 may be configured as a through-hole communicating with the accommodation cavity. The opening 231 is provided to facilitate the connection between the second terminal 12 and the external connector and facilitate the operation. It can avoid positional interference between the connection structure between the second terminal 12 and the external connector and the protective cover 23, which is beneficial to The structural design of the insulating member 20 is made more reasonable.

In addition, the protective cover 23 is detachably matched with the second sleeve body 22 . Specifically, when the protective cover 23 is installed on the second cover body 22, it can prevent the conductive member 10 from being exposed, and can play an insulating and protective role. When the protective cover 23 is removed from the second sleeve body 22, the connection between the second terminal 12 and the external connector can be made more convenient.

According to some embodiments of the present application, the insulating member 20 and the conductive member 10 may be integrally formed by injection molding. As a result, the insulating member 20 can be more stably sleeved on the conductive member 10 , which is beneficial to improving the structural stability of the wiring structure 100 , and can meet the insulation and coordination requirements of the conductive member 10 of any shape. Moreover, the insulation protection effect achieved by the insulating member 20 is better, which is more conducive to improving the use safety of the battery pack 200 .

In some embodiments of the present application, the gap between the conductive member 10 and the cell module 210 is greater than or equal to 18 mm. For example, the gap value can be 19mm, 20mm, 21mm, etc. Specifically, the gap between the conductive component 10 and the battery core module 210 is within the above range, and a better insulation effect can be achieved through the combination of air insulation and insulating component insulation. Moreover, after the conductive member 10 and the battery module 210 are separated by the above distance, even if the battery module 210 is squeezed and falls, the metal parts (such as end plates) of the conductive member 10 and the battery module 210 can be reduced. The risk of short circuit caused by contact further improves the safety performance of the battery pack 200.

Other structures and operations of the battery pack 200 according to the embodiment of the present application are known to those of ordinary skill in the art and will not be described in detail here.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

In the description of this specification, reference to the description of the terms "embodiments," "specific embodiments," "examples," etc., means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one aspect of the present application. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A wiring structure for a battery pack, the wiring structure includes:

A conductive member, the conductive member is configured to be electrically connected to the cell module of the battery pack;

Insulating member, the insulating member is sleeved on the conductive member, the insulating member includes a first cover body located in the box of the battery pack, the first cover body faces the side wall of the battery core module There is a buffer structure inside.
The wiring structure of the battery pack according to claim 1, wherein the buffer structure includes a plurality of holes provided in the side wall.
The wiring structure of the battery pack according to claim 2, the side wall includes a first wall surface, a second wall surface and a plurality of connecting walls, the first wall surface and the second wall surface are parallel to each other and arranged at intervals, a plurality of The connecting wall is provided between the first wall and the second wall and each connecting wall connects the first wall and the second wall to connect the first wall and the second wall. The space between the two walls is divided into a plurality of holes,

Any two adjacent connecting walls extend in different directions, and each connecting wall extends obliquely relative to the first wall.
The wiring structure of the battery pack according to any one of claims 1 to 3, the conductive member has a first terminal, the first sleeve is provided with an opening, and the opening is connected to the first terminal. Relatively, the first terminal is electrically connected to the battery module,

A mounting plate is also provided at the end of the first sleeve, the mounting plate is configured to be connected to the panel of the box, and the opening is separated from the mounting plate by a predetermined gap.
According to the wiring structure of the battery pack according to claim 4, the outer peripheral surface of the first sleeve body is provided with at least one annular convex rib, and the annular convex rib is located between the opening and the mounting plate.
According to the wiring structure of the battery pack according to any one of claims 1 to 5, the insulating member is penetrated through the panel of the box and further includes a second sleeve located outside the box, and the first The sleeve body is connected to the second sleeve body, the conductive member has a second terminal, and the second terminal extends out of the second sleeve body to be electrically connected to an external connector.
The wiring structure of the battery pack according to claim 6, further comprising:

A protective cover, the protective cover is detachably covered on the second sleeve body to define a receiving cavity, the second terminal is located in the receiving cavity, and the side wall of the protective cover is provided with an opening.
According to the wiring structure of the battery pack according to any one of claims 1 to 7, the insulating member and the conductive member are integrally formed by injection molding.
A battery pack including:

The box and the battery core module located in the box;

Wiring structure, the wiring structure is the wiring structure of the battery pack according to any one of claims 1-8, the The insulating piece is installed on the panel of the box.
The battery pack according to claim 9, wherein the gap between the conductive member and the battery cell module is greater than or equal to 18 mm.