Battery pack

Abstract

The utility model relates to the technical field of batteries, and discloses a battery pack, which is characterized in that an anode conducting bar and a cathode conducting bar are arranged in one of edge beams or reinforcing beams, and only one edge beam or reinforcing beam is processed during processing, so that the number of times of repeated processing is reduced, the processing cost is further reduced, and meanwhile, the processing efficiency is improved. The conducting bar group is mounted in the inner cavity of the beam, so that the occupied space in the battery pack is reduced, the space utilization rate of the whole pack is improved, the energy density of the battery pack can be improved, and the endurance mileage of the battery pack is effectively increased.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to battery packs. Background Technology

[0002] In the battery pack system of a motor vehicle, one end of the electrical busbar is connected to the positive and negative terminals of the battery pack, and the other end is connected to the motor vehicle, serving to transfer electrical energy from the battery pack to the motor vehicle.

[0003] Currently, the battery industry aims to improve the space utilization of battery packs and reduce the space occupied by conductive busbars within the pack. Specifically, a pair of conductive busbars is embedded in two reinforcing beams within the battery housing. However, this design requires reprocessing of both reinforcing beams, resulting in higher manufacturing costs. Utility Model Content

[0004] In view of this, the present invention provides a battery pack to solve the problem of high processing costs caused by embedding a pair of conductive bars into the two longitudinal beams of the battery box.

[0005] Specifically, this utility model provides a battery pack, which includes a battery housing and a conductive busbar assembly. The battery housing includes side beams and reinforcing beams; multiple side beams are provided, and the multiple side beams enclose an installation chamber, with the reinforcing beam located within the installation chamber; the conductive busbar assembly includes a positive conductive busbar and a negative conductive busbar, both of which are installed within one of the side beams or the reinforcing beam.

[0006] Beneficial effects: By installing both the positive and negative electrode conductive busbars inside one of the side beams or the reinforcing beam, only one side beam or the reinforcing beam needs to be processed during manufacturing, reducing the number of repeated processing steps and thus reducing processing costs. At the same time, the conductive busbar assembly is installed in the inner cavity of the beam, reducing the space occupied inside the battery pack, improving the overall space utilization rate of the pack, and helping to increase the energy density of the battery pack and effectively increase the driving range of the battery pack.

[0007] In one optional embodiment, a receiving groove is provided in the side beam or the reinforcing beam; the battery pack further includes a fixing component, which arranges the positive electrode conductive busbar and the negative electrode conductive busbar at intervals inside the receiving groove.

[0008] Beneficial effects: Since the fixing components are placed in the receiving slot, the positive and negative conductive bars are fixed by setting them alternately. At the same time, installing the positive and negative conductive bars in the side beams or reinforcing beams can reduce the extra space occupied, thereby increasing the energy density of the battery pack and effectively increasing the driving range of the battery pack.

[0009] In one optional embodiment, the fixing component is designed as a split unit, comprising a first limiting member and a second limiting member. The first limiting member and the second limiting member are respectively located at two oppositely arranged walls of any conductive busbar and act on the two walls. One of the first limiting member and the second limiting member is provided with a limiting groove, and the other is provided with a limiting protrusion. The limiting protrusion is used to limit the connection with the limiting groove to clamp the conductive busbar.

[0010] Beneficial effects: By designing the fixing component in a split manner, specifically, the fixing component includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member act on two oppositely arranged walls of any conductive busbar. After the limiting protrusions in the first limiting member and the limiting grooves are connected, the conductive busbar is clamped, separating the positive conductive busbar and the negative conductive busbar, and reducing the degree of mutual influence between the two conductive busbars.

[0011] In one optional embodiment, the first limiting member acts on the end face of any conductive busbar, leaving a first gap between the limiting member and the conductive busbar, and the second limiting member acts on the end face of any conductive busbar, leaving a second gap between the limiting member and the conductive busbar; the fixing assembly further includes elastic insulating members, which are arranged in pairs, and the paired elastic insulating members are respectively installed at the first gap corresponding to the first limiting member and at the second gap corresponding to the second limiting member.

[0012] Beneficial effects: By installing elastic insulating components at the first gap formed between the first limiting component and any conductive busbar and the second gap formed between the second limiting component and any conductive busbar, the force acting on the conductive busbar can be reduced when the battery pack encounters bumps, thus achieving buffering. This helps to improve the battery pack's ability to protect the conductive busbar, slows down the rate of damage to the conductive busbar, and thereby improves the battery pack's resistance to deformation.

[0013] In one alternative embodiment, the end face of the elastic insulating member near any of the conductive bars abuts against the conductive bar, and the end of the elastic insulating member near the first limiting member or the second limiting member is used for limiting connection with the first limiting member or the second limiting member.

[0014] In one optional embodiment, the side beam or the reinforcing beam has a second through hole communicating with the receiving groove, the extension direction of the second through hole intersects the extension direction of the receiving groove, and the first limiting member and the second limiting member are respectively installed at the two openings of the second through hole.

[0015] Beneficial effects: By providing a second through hole communicating with the receiving groove at the side beam or reinforcing beam, and setting the extension direction of the second through hole to intersect with the extension direction of the receiving groove, and installing the first limiting member and the second limiting member at the two openings of the second through hole respectively, it is helpful for maintenance personnel to disassemble and install the fixing components in a timely manner.

[0016] In one alternative embodiment, multiple fixing components are provided, and the multiple fixing components are arranged at intervals along the extension direction of the conductive bar.

[0017] Beneficial effects: When the battery pack vibrates during vehicle operation, the multiple fixing components arranged along the extension direction of the conductive busbars help to fix each conductive busbar in sections, reducing the degree of swaying of the conductive busbars. This makes the connection between the conductive busbars and the surrounding structure more reliable, preventing the conductive busbars from losing their installation constraints and thus avoiding safety risks such as short circuits in the battery pack. At the same time, it can also reduce the degree of friction between the conductive busbars and the fixing components, slowing down the rate of damage to the conductive busbars and thus extending the life of the battery pack.

[0018] In one alternative embodiment, the battery pack further includes an adapter comprising a mounting portion and an electrical connection portion. The mounting portion is located outside the side beam and is detachably mounted outside the side beam. The electrical connection portion passes through the side beam and extends toward the conductive busbar assembly. The electrical connection portion is electrically connected to the conductive busbar assembly.

[0019] Beneficial effects: By placing the mounting part outside the side beam and extending the electrical connection part through the side beam towards the conductor busbar, it is convenient to transfer the electrical energy of the battery pack to the electric vehicle after the electrical connection part is electrically connected to the conductor busbar.

[0020] In one optional embodiment, when the positive electrode busbar and the negative electrode busbar are installed inside the reinforcing beam, the end of the reinforcing beam near the adapter is provided with a first opening, and the side beam is provided with a first through hole corresponding to the first opening, the first through hole communicating with the first opening.

[0021] Beneficial effects: By providing a first opening at the end of the reinforcing beam near the adapter, providing a first through hole corresponding to the first opening on the side beam, and connecting the first through hole to the first opening, it is made easier to fix the electrical connection part of the adapter to the conductive busbar when installing the adapter.

[0022] In one alternative embodiment, the end of the reinforcing beam away from the adapter is provided with a second opening; the ends of the positive electrode conductor away from the adapter and the ends of the negative electrode conductor away from the adapter extend out of the reinforcing beam at the second opening and are used for connecting to the total positive and total negative electrical connections of the battery pack, respectively. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a partial structural schematic diagram of the battery pack provided by this utility model;

[0025] Figure 2 A partial explosion diagram of the battery pack provided by this utility model;

[0026] Figure 3 This is a partial structural schematic diagram of the battery pack provided by this utility model;

[0027] Figure 4 A partial cross-sectional view of the battery pack provided by this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Battery housing; 11. Side beam; 111. First through hole; 12. Reinforcing beam; 121. First cavity; 122. Second cavity; 123. Second through hole;

[0030] 2. Conductor busbar assembly; 21. Positive conductor busbar; 22. Negative conductor busbar;

[0031] 3. Fixing component; 31. First limiting component; 32. Second limiting component; 33. Elastic insulating component;

[0032] 4. Adapter; 41. Mounting part; 42. Electrical connection part;

[0033] 5. Support components;

[0034] 6. Connection structure; 61. First connector; 62. Second connector. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In the description of this application, it should be understood that the terms "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] See Figures 1 to 4 , Figure 1 A partial structural schematic diagram of the battery pack provided in an embodiment of this application is shown; Figure 2 A partial explosion diagram of the battery pack provided in this application is shown; Figure 3 A partial structural schematic diagram of the battery pack provided in this application is shown; Figure 4 A partial cross-sectional view of the battery pack provided in this application is shown.

[0040] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0041] like Figures 1 to 4 As shown, the battery pack includes at least a battery housing 1 and a conductive busbar assembly 2. The battery housing 1 includes side beams 11 and reinforcing beams 12. Multiple side beams 11 are provided, and the multiple side beams 11 enclose an installation chamber. The reinforcing beams 12 are located inside the installation chamber. The conductive busbar assembly 2 includes a positive conductive busbar 21 and a negative conductive busbar 22. Both the positive conductive busbar 21 and the negative conductive busbar 22 are installed in one of the side beams 11 or in one of the reinforcing beams 12.

[0042] By using the battery pack of this embodiment, both the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 are installed in one of the side beams 11 or the reinforcing beam 12. During processing, only one side beam 11 or the reinforcing beam 12 needs to be processed, which reduces the number of repeated processing, thereby reducing processing costs, saving space, improving the energy density of the battery pack, and effectively increasing the driving range of the battery pack.

[0043] It should be noted that, in this embodiment, the connection method between the reinforcing beam 12 and the side beam 11 is not specifically limited. For example, in this embodiment, one end of the reinforcing beam 12 along its extension direction is connected to a side beam 11. Of course, in other optional embodiments, the two ends of the reinforcing beam 12 along its extension direction are respectively connected to a pair of oppositely arranged side beams 11.

[0044] In this embodiment, a receiving groove is provided in the side beam 11 or the reinforcing beam 12; the battery pack also includes a fixing component 3, which is located in the receiving groove and has the positive electrode conductive bus 21 and the negative electrode conductive bus 22 spaced apart inside the receiving groove.

[0045] Using the battery pack of this embodiment, since the fixing component 3 is placed in the receiving groove, the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 are fixed by being arranged alternately. At the same time, the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 are installed in the reinforcing beam 12, which can reduce the extra space occupied, thereby increasing the energy density of the battery pack and effectively increasing the driving range of the battery pack.

[0046] It can be noted that, in this embodiment, the fixing component 3 is embedded in the side beam 11 or the reinforcing beam 12.

[0047] Furthermore, this application does not specifically limit the structure of the receiving tank.

[0048] As one embodiment, taking the fixing component 3 embedded in the reinforcing beam 12 as an example, the cross-section of the receiving groove is a "U"-shaped structure, and the receiving groove extends along the extension direction of the reinforcing beam 12, such as the length direction. At this time, the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 can be arranged in layers along the height direction, or they can be arranged side by side along the horizontal direction.

[0049] Preferably, the positive electrode conductive bus 21 and the negative electrode conductive bus 22 can be arranged at intervals along the height direction.

[0050] During installation, the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 are placed in the receiving groove, with the insertion direction aligned with the length direction of the reinforcing beam 12. Figure 4 In the direction of K or in the opposite direction to K.

[0051] It should be noted that in this embodiment, since the positive conductive busbar 21 and the negative conductive busbar 22 are in the same chamber, in order to avoid short circuit, an insulating layer, such as insulating paint, needs to be coated on the outer walls of the positive conductive busbar 21 and the negative conductive busbar 22.

[0052] Of course, as Figures 1 to 4 shown, the cross-section of the accommodating groove is in a "day" character structure. At this time, the fixing component 3 is designed in a split type. Specifically, the fixing component 3 includes a first limiting member 31 and a second limiting member 32. The first limiting member 31 and the second limiting member 32 are respectively located at two opposite wall surfaces of any one of the conductive busbars and act on the two wall surfaces. Among the first limiting member 31 and the second limiting member 32, one of them is provided with a limiting groove, and the other is provided with a limiting protrusion. The limiting protrusion is used for limiting connection with the limiting groove to clamp the conductive busbar.

[0053] By using the battery pack of this embodiment, through the split design of the fixing component 3, specifically, the fixing component 3 includes a first limiting member 31 and a second limiting member 32, and the first limiting member 31 and the second limiting member 32 respectively act on two opposite wall surfaces of any one of the conductive busbars. After the limiting protrusion and the limiting groove in the first limiting member 31 and the second limiting member 32 are in limiting connection, the clamping of the conductive busbar is realized, and the positive conductive busbar 21 and the negative conductive busbar 22 can be separated, reducing the degree of mutual influence between the two conductive busbars.

[0054] With such a setting, during installation, the positive conductive busbar 21 and the negative conductive busbar 22 are respectively placed into the first cavity 121 and the second cavity 122.

[0055] In addition, the cross-section of the accommodating groove is in an "eye" character structure. At this time, the fixing component 3 can be designed in a split type. During installation, the positive conductive busbar 21 and the negative conductive busbar 22 are respectively placed inside two separated cavities, and the remaining one cavity can be reserved for future use. For example, a heat exchange medium can be filled in this cavity later.

[0056] Furthermore, in order to avoid the relative movement between the first limiting member 3 and the second limiting member 32 and the positive conductive busbar 21 and the negative conductive busbar 22, the connections between the first limiting member 31 and the second limiting member 32 and the positive conductive busbar 21 and the negative conductive busbar 22 are strengthened.

[0057] As one of the embodiments, there is a first gap between the end face of the first limiting member 31 acting on any one of the conductive busbars and the conductive busbar, and there is a second gap between the end face of the second limiting member 32 acting on any one of the conductive busbars and the conductive busbar; the fixing component 3 further includes elastic insulating members 33. The elastic insulating members 33 are arranged in pairs. The paired elastic insulating members 33 are respectively installed at the first gap corresponding to the first limiting member 31 and at the second gap corresponding to the second limiting member 32.

[0058] With this configuration, by installing elastic insulating members 33 at the first gap formed between the first limiting member 31 and any conductive bar and the second gap formed between the second limiting member 32 and any conductive bar, the force acting on the conductive bar can be reduced when the battery pack encounters bumps, thus achieving buffering. This helps to improve the battery pack's ability to protect the conductive bar, slows down the rate of damage to the conductive bar, and thereby improves the battery pack's ability to resist deformation.

[0059] Furthermore, in this application, a pair of elastic insulating members 33 are respectively disposed on two opposing wall surfaces of one pair of conductive busbars, and are connected and disconnected using a first limiting member 31 and a second limiting member 32 to limit the pair of elastic insulating members 33, thereby limiting the conductive busbar. Specifically, the end face of the elastic insulating member 33 near any conductive busbar abuts against the conductive busbar, and the end of the elastic insulating member 33 near the first limiting member 31 or the second limiting member 32 is used for limiting connection with the first limiting member 31 or the second limiting member 32.

[0060] Meanwhile, to facilitate the disassembly of the first limiting member 31, the second limiting member 32, the elastic insulating member 33, the positive electrode conductive bus 21, and the negative electrode conductive bus 22.

[0061] A second through hole 123 communicating with the receiving groove is provided in the side beam 11 or the reinforcing beam 12, and the extension direction of the second through hole 123 is arranged to intersect with the extension direction of the receiving groove. At this time, the first limiting member 31 and the second limiting member 32 are respectively installed at the two openings of the second through hole 123. By providing a second through hole 123 communicating with the receiving groove in the side beam 11 or the reinforcing beam 12, and arranging the extension direction of the second through hole 123 to intersect with the extension direction of the receiving groove, and installing the first limiting member 31 and the second limiting member 32 at the two openings of the second through hole 123, it is helpful for maintenance personnel to disassemble and install the fixing components in a timely manner.

[0062] Similarly, no specific limitations are made on the connection method between the first limiting member and the elastic insulating member, or the connection method between the second limiting member and the elastic insulating member.

[0063] The connection between the first limiting member and the elastic insulating member is used as an example for illustration.

[0064] In one embodiment, the end face of the first limiting member 31 near the elastic insulating member 33 is provided with one of a T-shaped protrusion or a T-shaped groove, and the end face of the elastic insulating member near the first limiting member is provided with the other of a T-shaped protrusion or a T-shaped groove. The T-shaped protrusion can be snapped into the T-shaped groove.

[0065] During installation, first, install the positive conductive bus 21 and the negative conductive bus 22 of the conductive bus assemblies 2 into the first cavity 121 and the second cavity 122, respectively. Then, insert the elastic insulating member 33 and the first limiting member 31 into one opening of the second through hole 123 until the first limiting member 31 abuts the elastic insulating member 33 against one end face of the conductive bus. Next, insert the other elastic insulating member 33 and the second limiting member 32 into the other opening of the second through hole 123 until the second limiting member 32 abuts the other elastic insulating member 33 against the other end face of the conductive bus. Finally, connect the limiting protrusions and limiting grooves in the first limiting member 31 and the second limiting member 32 to achieve a limiting connection, thereby clamping the conductive bus. Repeat the above process until the installation of all fixing components is completed.

[0066] In this embodiment of the application, multiple fixing components 3 are provided, and the multiple fixing components 3 are arranged at intervals along the extension direction of the conductive busbar.

[0067] Using the battery pack of this embodiment, when the battery pack vibrates under vehicle operating conditions, the multiple fixing components 3 arranged along the extension direction of the conductive busbars help to fix each conductive busbar in sections, reduce the degree of swaying of the conductive busbars, make the connection between the conductive busbars and the surrounding structure more reliable, prevent the conductive busbars from losing their installation constraints, and thus avoid safety risks such as short circuits in the battery pack. At the same time, it can also reduce the degree of friction between the conductive busbars and the fixing components, slow down the rate of damage to the conductive busbars, and thus extend the life of the battery pack.

[0068] like Figures 1 to 4 As shown in the embodiment of this application, the battery pack further includes an adapter 4, which includes a mounting part 41 and an electrical connection part 42. The mounting part 41 is located outside the side beam 11 and is detachably mounted outside the side beam 11. The electrical connection part 42 passes through the side beam 11 and extends toward the conductive busbar 2.

[0069] Using the battery pack of this embodiment, by placing the mounting part 41 outside the side beam 11 and extending the electrical connection part 42 through the side beam 11 toward the conductive busbar 2, the electrical connection part 42 is electrically connected to the conductive busbar 2.

[0070] During installation, the conductive busbar assembly 2 and the fixing assembly 3 are moved within the receiving groove to the side near the mounting portion 41 of the adapter 4 until the conductive busbar and the electrical connection portion 42 of the adapter 4 are electrically fixed.

[0071] like Figure 2 and Figure 3As shown, when the adapter 4 is installed on the side beam 11, a through hole is provided in the mounting part 41. At this time, the battery pack also includes a connecting structure 6. The connecting structure 6 includes a first connector 61 and a second connector 62. The first connector 61 and the second connector 62 are respectively installed on both sides of the through hole.

[0072] Specifically, in the first connector 61 and the second connector 62, one of them has an internal thread, such as a countersunk rivet nut, and the other has an external thread, such as a bolt. During installation, the bolt is placed on the side of the mounting part 41 away from the side beam 11, and the countersunk rivet nut is placed on the side of the mounting part 41 close to the side beam 11. Then, the countersunk rivet nut is inserted into the through hole, and the external thread of the bolt is screwed into the internal thread of the countersunk rivet nut until it is tightened to complete the riveting.

[0073] Of course, in other alternative embodiments, the mounting part 41 can also be directly welded to the side beam 11.

[0074] like Figures 1 to 4 As shown in the embodiment of this application, the electrical connection portions 42 are arranged in pairs, and the pair of electrical connection portions 42 are respectively connected to the positive electrode busbar 21 and the negative electrode busbar 22.

[0075] It should be noted that there are no specific limitations on the connection method between the electrical connection part 42 and the positive and negative conductive busbars 22.

[0076] In one embodiment, when the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 are installed inside the reinforcing beam 12, the end of the reinforcing beam 12 near the adapter 4 is provided with a first opening, and the side beam 11 is provided with a first through hole 111 corresponding to the first opening, and the first through hole 111 communicates with the first opening.

[0077] Using the battery pack of this embodiment, by providing a first opening at the end of the reinforcing beam 12 near the adapter 4, providing a first through hole 111 on the side beam 11 corresponding to the first opening, and connecting the first through hole 111 to the first opening, the installation of the adapter 4 facilitates the fixing of its electrical connection part 42 to the conductive busbar.

[0078] Furthermore, the dimensions of the first through hole 111 and the end dimension of the reinforcing beam 12 near the adapter 4 are not specifically limited. When the end dimension of the reinforcing beam 12 near the adapter 4 is larger than the size of the first through hole 111, the first through hole 111 is aligned with the first opening, and then welding is performed; when the end dimension of the reinforcing beam 12 near the adapter 4 is smaller than the size of the first through hole 111, an intermediate component, such as an angle bracket, is added, and then the connection and fixation are performed, such as by bolt connection or by welding.

[0079] Of course, in other alternative embodiments, when the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 are installed inside the side beam 11, a first opening communicating with the interior of the side beam 11 is provided on the end face of the side beam 11 away from the installation chamber. During installation, the electrical connection end of the conductive busbar is led out to the outside of the side beam 11 and then electrically connected to the electrical connection part 42.

[0080] like Figures 1 to 4 As shown in this embodiment, the end of the reinforcing beam 12 away from the adapter 4 has a second opening; the ends of the positive electrode conductive busbar 21 and the negative electrode conductive busbar 22 away from the adapter 4 extend out of the reinforcing beam 12 at the second opening and are used for total positive and total negative electrical connection with the battery pack. The end of the adapter 4 away from the conductive busbar group 2 is connected to the electric vehicle to supply electrical energy from the battery pack to the electric vehicle.

[0081] It can be explained that, for example Figure 1 and Figure 2 As shown, the end of the reinforcing beam 12 away from the adapter 4 is spaced apart from the side beam 11 to allow for installation space. When the ends of the positive electrode conductive busbar 21 away from the adapter 4 and the negative electrode conductive busbar 22 away from the adapter 4 extend to the outside of the second opening, they are respectively connected to the total positive and total negative electrical connections of the battery pack.

[0082] In this embodiment of the application, the battery pack also includes a support member 5, one end of which is connected to the reinforcing beam 12 along its extension direction, and the other end of which is connected to the side beam 11 along its extension direction.

[0083] Using the battery pack of this embodiment, by setting up a support member 5, the support member 5 and its adjacent side beam enclose an installation space for placing electrical components, which helps to install electrical components in an orderly manner.

[0084] It can be noted that when the reinforcing beam 12 is a longitudinal beam, the support member 5 is a transverse beam; when the reinforcing beam 12 is a transverse beam, the support member 5 is a longitudinal beam. In this case, the conductive busbar 2 is only installed in one of the transverse beams or one of the longitudinal beams.

[0085] like Figures 1 to 4 As shown in the embodiment of this application, multiple support members 5 are provided, and the multiple support members 5 are arranged along the extension direction of the reinforcing beam 12 and / or along a direction that intersects with the extension direction of the reinforcing beam 12.

[0086] It can be noted that the extension direction of the aforementioned reinforcing beam 12 is the length direction, and the length direction is... Figure 4 Mid-horizontal direction.

[0087] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A battery pack, characterized in that, include: The battery box (1) includes side beams (11) and reinforcing beams (12). Multiple side beams (11) are provided, and multiple side beams (11) enclose an installation chamber. The reinforcing beams (12) are located in the installation chamber. The conductive busbar group (2) includes a positive conductive busbar (21) and a negative conductive busbar (22), and both the positive conductive busbar (21) and the negative conductive busbar (22) are installed in one of the side beams (11) or the reinforcing beam (12).

2. The battery pack according to claim 1, characterized in that, A receiving groove is provided inside the side beam (11) or the reinforcing beam (12); The battery pack also includes a fixing component (3), which positions the positive electrode conductive bus (21) and the negative electrode conductive bus (22) at intervals inside the receiving groove.

3. The battery pack according to claim 2, characterized in that, The fixing component (3) is a split design. The fixing component (3) includes a first limiting member (31) and a second limiting member (32). The first limiting member (31) and the second limiting member (32) are respectively located at two oppositely arranged walls of any conductive busbar and act on the two walls. In the first limiting member (31) and the second limiting member (32), one of them is provided with a limiting groove and the other is provided with a limiting protrusion. The limiting protrusion is used to limit the connection with the limiting groove to clamp the conductive busbar.

4. The battery pack according to claim 3, characterized in that, The first limiting member (31) acts on the end face of any conductive busbar and leaves a first gap between it and the conductive busbar; the second limiting member (32) acts on the end face of any conductive busbar and leaves a second gap between it and the conductive busbar. The fixing component (3) further includes an elastic insulating member (33), which is arranged in pairs. The paired elastic insulating members (33) are respectively installed at the first gap corresponding to the first limiting member (31) and at the second gap corresponding to the second limiting member (32).

5. The battery pack according to claim 4, characterized in that, The elastic insulating member (33) abuts against the conductive bus near the end face of any of the conductive bus, and the end of the elastic insulating member (33) near the first limiting member (31) or the second limiting member (32) is used for limiting connection with the first limiting member (31) or the second limiting member (32).

6. The battery pack according to any one of claims 3-5, characterized in that, The side beam (11) or the reinforcing beam (12) is provided with a second through hole (123) communicating with the receiving groove. The extension direction of the second through hole (123) is intersected with the extension direction of the receiving groove. The first limiting member (31) and the second limiting member (32) are respectively installed at the two openings of the second through hole (123).

7. The battery pack according to any one of claims 2-5, characterized in that, The fixing component (3) is provided in multiple ways, and the multiple fixing components (3) are arranged at intervals along the extension direction of the conductive busbar.

8. The battery pack according to any one of claims 1-5, characterized in that, Also includes: The adapter (4) includes a mounting part (41) and an electrical connection part (42). The mounting part (41) is located outside the side beam (11) and is detachably mounted outside the side beam (11). The electrical connection part (42) passes through the side beam (11) and extends toward the conductive busbar group (2). The electrical connection part (42) is electrically connected to the conductive busbar group (2).

9. The battery pack according to claim 8, characterized in that, When the positive electrode conductive bus (21) and the negative electrode conductive bus (22) are installed in the reinforcing beam (12), the end of the reinforcing beam (12) near the adapter (4) is provided with a first opening, and the side beam (11) is provided with a first through hole (111) corresponding to the first opening, and the first through hole (111) communicates with the first opening.

10. The battery pack according to claim 8, characterized in that, The end of the reinforcing beam (12) away from the adapter (4) has a second opening; The positive electrode conductor (21) and the negative electrode conductor (22) extend from the end of the adapter (4) away from the adapter (4) at the second opening to the outside of the reinforcing beam (12) and are used for total positive and total negative electrical connections with the battery pack, respectively.

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