CN220692264U - Fixing support and battery pack of wire harness plug-in port - Google Patents

Abstract

The application provides a fixing support of a wire harness plug-in port and a battery pack, wherein the fixing support of the wire harness plug-in port comprises a supporting plate, at least two first connecting pieces and at least two second connecting pieces; the first connecting piece is arranged on the supporting plate and is used for being detachably connected with the wire harness plug-in port of the battery pack; the second connecting piece sets up in the backup pad one side that deviates from first connecting piece, and the second connecting piece is used for inserting to establish in the module end plate of battery package, and can dismantle with the module end plate and be connected. The fixed bolster of pencil grafting port of this application provides fixed plane for the pencil grafting port in the battery package, and the pencil grafting port is connected with the module end plate of battery package through the fixed bolster of pencil grafting port, has improved the fixed stability of the module end plate of pencil grafting port and battery package.

Description

Fixing support and battery pack of wire harness plug-in port

Technical Field

The application relates to the field of battery pack accessories, in particular to a fixing support of a wire harness plug-in port and a battery pack.

Background

The battery pack technology enters a rapid development stage, and wire harness isolation is one of the main technologies of the battery pack. A harness isolation assembly and a module end plate are included in the battery pack, and the harness isolation assembly is used for protecting and isolating the harness in the battery pack. The wire harness plug ports in the wire harness isolation assembly need to be secured to the module end plates.

In the prior art, double-sided adhesive tape is connected to the bottom of the wire harness plug-in port, and the wire harness plug-in port is fixed on a module end plate of the battery pack through double-sided adhesive tape.

However, when the module end plate of the battery pack has no plane of a large area, the stability of the fixation of the wire harness plugging port is poor.

Disclosure of Invention

The application provides a fixed bolster and battery package of pencil grafting port for when the module end plate of battery package does not have great area plane among the prior art, the relatively poor problem of pencil grafting port fixed stability is solved.

In one aspect, the present application provides a fixing bracket for a wire harness plugging port, including a support plate, at least two first connectors, and at least two second connectors; the first connecting piece is arranged on the supporting plate and is used for being detachably connected with the wire harness plug-in port of the battery pack; the second connecting piece sets up in the backup pad one side that deviates from first connecting piece, and the second connecting piece is used for inserting to establish in the module end plate of battery package, and can dismantle with the module end plate and be connected.

In one possible implementation manner, the fixing support of the wire harness plug-in port provided by the application is characterized in that the first connecting pieces are buckles which are correspondingly clamped with the edges of the wire harness plug-in port, the number of the first connecting pieces is two, the two first connecting pieces are oppositely arranged, and the first connecting pieces are respectively used for clamping the two edges opposite to the wire harness plug-in port.

In one possible implementation mode, the fixing support of the wire harness plug-in port provided by the application is provided, one surface of the supporting plate provided with the first connecting piece is provided with two grooves, and the grooves are located on the side of the first connecting piece and are used for being clamped with two limiting blocks oppositely arranged on the wire harness plug-in port.

In one possible implementation manner, the fixing support of the wire harness plug-in port provided by the application comprises an elastic part, wherein at least one protrusion is arranged on the elastic part and is used for being clamped with a limiting hole on the module end plate.

In one possible implementation manner, the fixing support of the wire harness plugging port provided by the application further comprises a supporting portion, and the supporting portion and the elastic portion enclose together to form a plug block for being plugged into a jack on the module end plate.

In one possible implementation manner, the fixing support of the wire harness plugging port is provided with at least one limiting rib on the supporting portion, the limiting rib is arranged opposite to the protrusion, and the limiting rib is used for being plugged with the limiting groove in the jack.

On the other hand, the application provides a battery pack, which comprises a wire harness plugging port, a module end plate and a fixing bracket of any wire harness plugging port; the wire harness plug-in port comprises a plug-in part and a mounting part, wherein the plug-in part is used for being electrically connected with the wire harness, and the plug-in part is arranged on one side of the mounting part; the first connecting piece of the fixed bracket of the wire harness plug-in port is detachably connected with the mounting part; the second connector of the fixing support of the wire harness plug-in port is inserted in the module end plate and is detachably connected with the module end plate.

In one possible implementation manner, the battery pack provided by the application is characterized in that at least one notch is formed in two opposite edges of the mounting part, and the first connecting pieces are clamped with the notches in a one-to-one correspondence manner; two limiting blocks are oppositely arranged on one side of the mounting part, which is away from the inserting part, and the limiting blocks are inserted into grooves in the supporting plate.

In one possible implementation manner, in the battery pack provided by the application, a jack is formed in one end, facing the fixed support, of the module end plate, and a limiting hole communicated with the jack is formed in the side surface of the module end plate; the second connecting piece is inserted into the jack, and the bulge on the second connecting piece is clamped with the limiting hole.

The inner wall of the jack is provided with at least one limit groove, and the limit groove is arranged opposite to the limit hole; and the limiting ribs on the second connecting piece opposite to the bulges are clamped with the limiting grooves in a one-to-one correspondence manner.

The utility model provides a pair of fixed bolster and battery package of pencil grafting port, the fixed bolster of pencil grafting port includes backup pad, first connecting piece and second connecting piece, and the fixed bolster of pencil grafting port passes through the second connecting piece and can dismantle with the module end plate of battery package and be connected, provides fixed plane for the pencil grafting port through the fixed bolster of pencil grafting port, can dismantle the pencil grafting port through first connecting piece and fix in the backup pad, and the pencil grafting port is connected with the module end plate through the fixed bolster of pencil grafting port from this, has improved the fixed stability of pencil grafting port. In addition, the limiting block clamping connection of the groove and the bottom of the wire harness plugging port is further arranged on the supporting plate, so that the wire harness plugging port is further fixed, and the stability of the wire harness plugging port is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a fixing bracket of a wire harness plugging port according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure of FIG. 1 at another angle;

fig. 3 is a front view of a fixing bracket of a wire harness plugging port provided in an embodiment of the present application;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a top view of FIG. 3;

fig. 6 is a use state diagram of a fixing bracket of a wire harness plugging port provided in an embodiment of the present application;

FIG. 7 is an exploded view of FIG. 6;

fig. 8 is a bottom view of the mounting portion of the harness mating port of fig. 6.

Reference numerals illustrate:

100-fixing brackets of the wire harness plug-in ports;

110-a support plate;

111-grooves;

120-first connector;

130-a second connector;

131-an elastic part;

1311-protrusions;

132-a support;

1321-limit ribs;

200-wire harness plug-in ports;

210-a plug-in part;

220-mounting part;

221-notch;

222-limiting blocks;

300-module end plates;

310-jack;

311-limiting holes;

312-limit grooves.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

As demonstrated by the background art, in the prior art, the wire harness plug-in port is stuck and fixed on the module end plate through the double faced adhesive tape, and when the surface of the module end plate is uneven and lacks a plane with a large area, the connection stability of the wire harness plug-in port and the module end plate is poor. In addition, the double-sided adhesive tape is used for fixing, and is easy to age, poor in fixing stability and short in fixing time.

To above-mentioned technical problem, this embodiment of the application provides a fixed bolster and battery package of pencil grafting port, this fixed bolster of pencil grafting port includes the backup pad, first connecting piece and second connecting piece, the fixed bolster of pencil grafting port inserts through the second connecting piece and establishes in the module end plate of battery package, the backup pad provides fixed platform for the pencil grafting port of battery package, the pencil grafting port can be dismantled with the backup pad through first connecting piece and be connected, the fixed bolster of pencil grafting port is as intermediate transition mechanism, for the pencil grafting port provides fixed plane, the stability that pencil grafting port and module end plate are connected has been improved.

The following describes the technical solution of the present application and how the technical solution of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings:

it should be noted that, the fixing support of the wire harness plug-in port provided by the embodiment of the application can be applied to various battery packs.

Referring to fig. 1 and 6, a fixing bracket 100 for a harness plug port according to an embodiment of the present application includes a support plate 110, at least two first connection members 120, and at least two second connection members 130.

The first connection member 120 is disposed on the support plate 110, and the first connection member 120 is configured to be detachably connected with the harness plug port 200 of the battery pack.

The second connecting member 130 is disposed on a surface of the support plate 110 facing away from the first connecting member 120, and the second connecting member 130 is configured to be inserted into the module end plate 300 of the battery pack and detachably connected to the module end plate 300.

In this application, backup pad 110 can dismantle with module end plate 300 through second connecting piece 130 and be connected, and backup pad 110 provides fixed plane for pencil grafting port 200, and pencil grafting port 200 can dismantle through first connecting piece 120 and fix on backup pad 110, and the fixed bolster 100 of pencil grafting port plays the effect of intermediate transition mechanism from this, provides fixed plane for pencil grafting port 200, improves the stability of being connected between pencil grafting port 200 and the module end plate 300.

In addition, the first connecting piece 120 is detachably connected with the wire harness plugging port 200, the second connecting piece 130 is inserted into the module end plate 300 and is detachably connected with the module end plate 300, so that the disassembly of the wire harness plugging port 200 and the installation and replacement of the wire harness plugging port fixing bracket 100 are more convenient and quick, and the installation and replacement efficiency of the wire harness plugging port 200 and the wire harness plugging port fixing bracket 100 is improved.

In some realizable manners, referring to fig. 1 and fig. 7, the first connectors 120 in the embodiments of the present application are buckles that are correspondingly clamped to the edges of the harness plugging port 200, the number of the first connectors 120 is two, and the two first connectors 120 are oppositely arranged and are respectively used for clamping to the two edges of the harness plugging port 200.

In a specific implementation, the first connector 120 may be L-shaped, and the bottom of the wire harness inserting port 200 abuts against the first connector 120 and the support plate 110, so that the wire harness inserting port 200 is fixed on the support plate 110, and the first connector 120 may prevent the wire harness inserting port 200 from moving up and down along a direction perpendicular to a surface of the support plate 110 and separating from the support plate 110. In addition, the opposite edges of the first connecting piece 120 and the wire harness plugging port 200 are clamped, so that the wire harness plugging port 200 can be limited to move back and forth along the plane of the support plate 110, and the fixing stability of the wire harness plugging port 200 is further improved.

In some realizable modes, referring to fig. 1, 2, 5 and 8, two grooves 111 are formed on one surface of the support plate 110 provided with the first connecting piece 120, and the grooves 111 are located at sides of the first connecting piece 120 and are used for plugging with two limiting blocks 222 oppositely arranged on the wire harness plugging port 200.

Specifically, the connection part between the support plate 110 and the first connecting piece 120 is provided with the groove 111, the groove 111 is matched with the limiting block 222 at the bottom of the wire harness plugging port 200, and the limiting block 222 is plugged with the groove 111, so that the wire harness plugging port 200 can be limited to move along the plane where the support plate 110 is located, the connection stability of the wire harness plugging port 200 and the support plate 110 is enhanced, and the connection between the wire harness plugging port 200 and the module end plate 300 is more stable.

In some possible implementations, referring to fig. 1, 3, 4 and 7, the second connector 130 in the embodiment of the present application includes an elastic portion 131, where at least one protrusion 1311 is disposed on the elastic portion 131, and the protrusion 1311 is configured to be engaged with the limiting hole 311 on the module end plate 300.

In this application, the elastic portion 131 is elastically deformed by being pressed, the protrusion 1311 is provided on the elastic portion 131, and the second connector 130 is inserted into the insertion hole 310 of the module end plate 300 when the fixing bracket 100 of the wire harness insertion port is mounted. In the installation process, the protrusion 1311 on the elastic portion 131 abuts against the inner wall of the jack 310 and slides downwards along the inner wall, the elastic portion 131 is extruded to elastically deform, and when the protrusion 1311 slides to the position of the limiting hole 311 on the module end plate 300 along the inner wall of the jack 310 and is clamped with the limiting hole 311, the elastic portion 131 is not extruded any more and returns to the original state. The elastic deformation of the elastic part 131 can enable the installation of the fixing support 100 of the wire harness plugging port to be more convenient, and meanwhile, the protrusion 1311 on the elastic part 131 is clamped with the limiting hole 311, so that the connection stability of the fixing support 100 of the wire harness plugging port and the module end plate 300 can be improved.

In some possible implementations, referring to fig. 1, 4 and 7, the second connector 130 of the embodiment of the present application further includes a supporting portion 132, where the supporting portion 132 and the elastic portion 131 together enclose a plug for inserting into the jack 310 on the module end plate 300.

It should be noted that, the elastic portion 131 and the supporting portion 132 enclose together to form an insert, i.e. the insert is hollow, so that the weight of the fixing bracket 100 of the wire harness plugging port can be reduced, and meanwhile, a deformation space is reserved for the elastic portion 131. One side wall of the insert block is an elastic part 131, and the other three side walls can be integrally provided to form a supporting part 132. The plug is matched with the jack 310 on the module end plate 300, the plug is inserted into the jack 310, so that the fixing support 100 of the wire harness plug port is fixed on the module end plate 300, the operation is simple and convenient, the stability is high, a fixing plane is provided for the wire harness plug port 200, and the installation stability and the installation efficiency of the wire harness plug port 200 are improved.

In some possible implementations, referring to fig. 2, 4, 5 and 7, the support portion 132 of the embodiment of the present application has at least one limiting rib 1321, where the limiting rib 1321 is disposed opposite to the protrusion 1311, and the limiting rib 1321 is configured to be clamped with the limiting groove 312 in the jack 310.

In a specific implementation, at least one limiting rib 1321 is disposed on a surface of the support portion 132 opposite to the elastic portion 131, and the limiting rib 1321 is clamped with the limiting groove 312 in the jack 310, so as to play a limiting role, and enhance the connection stability of the fixing support 100 of the wire harness plugging port and the module end plate 300.

Referring to fig. 1, 6 and 7, the embodiment of the present application further provides a battery pack, including a harness plugging port 200, a module end plate 300 and a fixing bracket 100 of any of the harness plugging ports; the wire harness plug port 200 includes a plug portion 210 and a mounting portion 220, the plug portion 210 is for electrical connection with the wire harness, and the plug portion 210 is disposed at one side of the mounting portion 220.

The first connector 120 of the fixing bracket 100 of the wire harness insertion port is detachably connected with the mounting portion 220.

The second connector 130 of the fixing bracket 100 of the wire harness plugging port is plugged into the module end plate 300 and is detachably connected with the module end plate 300.

The structure and the working principle of the fixing bracket 100 of the wire harness plugging port are described in detail in the above embodiments, and are not described in detail here.

The wire harness isolation assembly is used for protecting and isolating the wire harness in the battery pack, and the wire harness plugging port 200 is a part of the wire harness isolation assembly and is connected with the wire harness isolation plate. The wire harness plugging port 200 includes a plugging portion 210 and an installation portion 220, the plugging portion 210 is used for electrically connecting with the wire harness, the installation portion 220 is arranged at the bottom of the wire harness plugging port 200, and the plugging portion 210 is fixedly connected with the installation portion 220.

The mounting part 220 is connected with the fixing bracket 100 of the wire harness plugging port through the first connecting piece 120, and the fixing bracket 100 of the wire harness plugging port is detachably connected with the module end plate 300 through the second connecting piece 130, thereby realizing the fixation of the wire harness plugging port 200. The contact surface of the mounting portion 220 and the support plate 110 is a plane, so that the connection of the harness insertion port 200 and the support plate 110 is more stable.

In some possible implementations, referring to fig. 1, 7 and 8, two opposite edges of the mounting portion 220 in the embodiment of the present application each have at least one notch 221, and the first connecting piece 120 is snapped with the notches 221 in a one-to-one correspondence.

Two limiting blocks 222 are oppositely arranged on one side, away from the plug-in connection part 210, of the mounting part 220, and the limiting blocks 222 are inserted into the grooves 111 on the support plate 110.

In this application, two opposite edges of installation department 220 are provided with the breach 221 that corresponds with first connecting piece 120, breach 221 and first connecting piece 120 joint can prevent that pencil grafting port 200 from taking place to slide on backup pad 110, and the one side that installation department 220 deviates from grafting portion 210 sets up the stopper 222 with recess 111 assorted, and stopper 222 inserts and establishes in recess 111, further improves the stability that pencil grafting port 200 is connected with the fixed bolster 100 of pencil grafting port.

In some realizable modes, referring to fig. 1, 6 and 7, an insertion hole 310 is provided at one end of the module end plate 300 facing the fixed bracket 100, and a limiting hole 311 communicating with the insertion hole 310 is provided at a side surface of the module end plate 300;

the second connecting piece 130 is inserted into the insertion hole 310, and the protrusion 1311 on the second connecting piece 130 is clamped with the limiting hole 311.

In a specific implementation, the module end plate 300 is provided with the insertion hole 310, so that the second connecting piece 130 can be inserted into the insertion hole 310, and the installation operation of the fixing support 100 of the wire harness insertion port is more convenient and quick. The limiting hole 311 communicated with the jack 310 is formed on the side surface of the module end plate 300, and the limiting hole 311 is clamped with the protrusion 1311 on the second connecting piece 130, so that the connection stability of the fixing support 100 of the wire harness plugging port and the module end plate 300 can be improved.

In some possible manners, referring to fig. 2, fig. 6 and fig. 7, at least one limiting groove 312 is formed on the inner wall of the jack 310, and the limiting groove 312 is opposite to the limiting hole 311;

the limiting ribs 1321 on the second connecting piece 130 opposite to the protrusions 1311 are in one-to-one corresponding clamping connection with the limiting grooves 312.

The inner wall of the jack 310 is provided with a limit groove 312, the limit groove 312 is clamped with a limit rib 1321 on the second connecting piece 130, and the connection stability of the fixing support 100 of the wire harness plug-in port and the module end plate 300 is further improved.

To sum up, the fixing support 100 for the wire harness plug port provided by the application improves the stability of connection between the wire harness plug port 200 and the module end plate 300 by providing a fixing plane for the wire harness plug port 200. When the wire harness plug-in port 200 is specifically used, the mounting portion 220 of the wire harness plug-in port 200 is detachably connected with the support plate 110 through the first connecting piece 120, meanwhile, the notch 221 on the mounting portion 220 is clamped with the first connecting piece 120, the limiting block 222 at the bottom of the mounting portion 220 is inserted into the groove 111, and the connection stability of the wire harness plug-in port 200 and the fixing support 100 of the wire harness plug-in port is improved. After the wire harness plug-in port 200 is stably connected with the supporting plate 110, the second connecting piece 130 is inserted into the insertion hole 310 of the module end plate 300, so that the fixing support 100 of the wire harness plug-in port is detachably connected with the module end plate 300, and meanwhile, the protrusions 1311 and the limit ribs 1321 on the second connecting piece 130 are respectively clamped with the limit holes 311 and the limit grooves 312, so that the connection stability of the fixing support 100 of the wire harness plug-in port and the module end plate 300 is improved. Therefore, the stability of connection between the wire harness plug-in port 200 and the module end plate 300 is improved through the fixing support 100 of the wire harness plug-in port, and meanwhile, the fixing operation is convenient and fast, so that the efficiency of installing and replacing the wire harness plug-in port 200 is improved.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments or implications herein must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the embodiments herein. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.

The terms first, second, third, fourth and the like in the description and in the claims of embodiments of the application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented, for example, in sequences other than those illustrated or described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiments of the present application, the sequence number of each process described above does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. The fixing bracket of the wire harness plug-in port is characterized by comprising a supporting plate, at least two first connecting pieces and at least two second connecting pieces;

the first connecting piece is arranged on the supporting plate and is used for being detachably connected with a wire harness plug-in port of the battery pack;

the second connecting piece is arranged on one surface of the supporting plate, which is away from the first connecting piece, and the second connecting piece is used for being inserted into a module end plate of the battery pack and detachably connected with the module end plate.

2. The fixing support of a wire harness plugging port according to claim 1, wherein the first connecting pieces are buckles which are correspondingly clamped with edges of the wire harness plugging port, the number of the first connecting pieces is two, the two first connecting pieces are oppositely arranged and are respectively used for clamping with two edges opposite to the wire harness plugging port.

3. The fixing support of a wire harness plugging port according to claim 1, wherein two grooves are formed in one surface of the supporting plate, on which the first connecting piece is arranged, and the grooves are located on the side of the first connecting piece and are used for being clamped with two limiting blocks oppositely arranged on the wire harness plugging port.

4. A harness mating port mounting bracket according to any one of claims 1 to 3, wherein the second connector includes an elastic portion on which at least one projection is provided for snap-engagement with a retention aperture in the module end plate.

5. The harness mating port mounting bracket of claim 4, wherein the second connector further comprises a support portion that cooperates with the resilient portion to define a plug for insertion into a receptacle in the module end plate.

6. The wire harness plugging port fixing bracket according to claim 5, wherein the support portion is provided with at least one limiting rib, the limiting rib is arranged opposite to the protrusion, and the limiting rib is used for plugging with the limiting groove in the jack.

7. A battery pack comprising a harness plug port, a module end plate, and the fixing bracket of the harness plug port of any one of claims 1 to 6;

the wire harness plug-in port comprises a plug-in part and a mounting part, wherein the plug-in part is used for being electrically connected with the wire harness, and the plug-in part is arranged on one side of the mounting part;

the first connecting piece of the fixing bracket of the wire harness plug-in port is detachably connected with the mounting part;

the second connector of the fixing support of the wire harness plug-in port is inserted into the module end plate and is detachably connected with the module end plate.

8. The battery pack according to claim 7, wherein each of opposite edges of the mounting portion has at least one notch, and the first connecting members are engaged with the notches in one-to-one correspondence;

two limiting blocks are oppositely arranged on one side, away from the inserting part, of the mounting part, and the limiting blocks are inserted into grooves in the supporting plate.

9. The battery pack according to claim 7, wherein a jack is formed in one end of the module end plate, which faces the fixing bracket, and a limit hole communicated with the jack is formed in the side surface of the module end plate;

the second connecting piece is inserted into the jack, and the protrusions on the second connecting piece are clamped with the limiting holes.

10. The battery pack according to claim 9, wherein at least one limit groove is formed in the inner wall of the insertion hole, and the limit groove is arranged opposite to the limit hole;

and the limiting ribs on the second connecting piece, which are opposite to the protrusions, are clamped with the limiting grooves in a one-to-one correspondence manner.