CN215342870U - Battery pack and electric equipment - Google Patents

Abstract

A battery pack includes a circuit board. The battery pack further includes a first housing assembly, a wire harness, and a connector. The first housing assembly is provided with an opening. The connector is secured to the first housing assembly and is disposed within the opening. One end of the wire harness is connected with the circuit board, and the other end of the wire harness is connected with the connector. Above-mentioned group battery and consumer are through being connected circuit board and connector are direct through the wire, reduce the plug-in terminal that sets up connector and pencil and be connected, reduce the short circuit risk of group battery. The use safety and the reliability of the battery pack are improved.

Description

Battery pack and electric equipment

Technical Field

The application relates to the technical field of energy storage, especially, relate to a group battery and consumer.

Background

At present connector and battery package are usually through being connected to the plug terminal, arrange the casing in to the plug terminal, and plug terminal is with high costs to when the inside back of intaking of casing, produce the verdigris easily to the plug terminal, make the internal resistance increase of battery package, be unfavorable for the security and the reliability of battery package.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a battery pack and an electric device, which can improve the safety of the battery pack.

An embodiment of the present application provides a battery pack including a circuit board. The battery pack further includes a first housing assembly, a wire harness, and a connector. The first housing assembly is provided with an opening. The connector is secured to the first housing assembly and is disposed within the opening. One end of the wire harness is connected with the circuit board, and the other end of the wire harness is connected with the connector.

According to the embodiment, the circuit board is directly connected with the connector through the wiring harness, the plug-in terminals connected with the connector and the wiring harness are reduced, and the short circuit risk of the battery pack is reduced. The use safety and the reliability of the battery pack are improved.

Further, in some embodiments of the present application, the battery pack further includes a first structural member. The connector is arranged on the first structural member. The first structural member is fixed to the first housing assembly, and the connector is at least partially disposed in the opening.

Further, in some embodiments of the present application, the first structural member includes a first surface, a second surface, and a receiving portion. The first surface and the second surface are arranged oppositely along the thickness direction of the first structural member, and the accommodating part penetrates through the first surface and the second surface. The connector is connected to the first surface and is arranged in the accommodating part.

Further, in some embodiments of the present application, a projection of the receiving portion on the first housing assembly in a thickness direction of the first structural member is the same as a projection of the connector provided in the receiving portion on the first housing assembly.

The above-described embodiments simplify the step of mounting the connector on the first structural member, reducing the probability of mounting errors.

Further, in some embodiments of the present application, the second surface is provided with a second concave portion, the first housing assembly is provided with a second retaining member, the second retaining member is retained on the second surface, and the second retaining member is disposed in the second concave portion.

Further, in some embodiments of the present application, the first housing component includes a convex portion, the convex portion and the side wall of the first housing component enclose to form a first region, the opening is disposed in the first region, a region between an edge of the opening and the convex portion and a region between the edge of the opening and the side wall of the first housing component are first sub-regions, and the first structural member is at least partially disposed in the first sub-region.

The above-mentioned embodiment forms the first area by the convex part matching with the side wall of the first shell, and no other wall is needed to be arranged additionally, thereby reducing the manufacturing cost of the first shell assembly and simplifying the manufacturing steps of the first shell assembly.

Further, in some embodiments of the present application, the first surface is disposed on the first sub-region, and the first sub-region is disposed on a glue layer disposed in a gap between the first structural member and the first housing assembly.

The above embodiment improves the sealing property between the first structural member and the first housing by the glue layer.

Further, in some embodiments of the present application, the battery pack further includes a fixing member. The fixing piece penetrates through the outer surface of the first shell assembly and is connected with the connector so as to fix the connector to the opening.

The embodiment directly fixes the connector through the fixing piece, simplifies the structure of the first shell, reduces the manufacturing cost, can reduce the fixing pieces, and improves the universality of the first shell assembly.

Further, in some embodiments of the present application, the battery pack further includes a second housing assembly and a cell. The electric core is arranged in the second shell component and electrically connected to the circuit board. The wire harness is connected with the circuit board and extends outwards to form a second shell assembly.

An embodiment of the present application further provides an electric device, including the battery pack in any of the above embodiments.

Foretell group battery and consumer are through being connected circuit board and connector are direct through the pencil, reduce the plug terminal that sets up connector and pencil and be connected, reduce the short circuit risk of group battery, promote the safety in utilization and the reliability of group battery.

Drawings

Fig. 1 shows an exploded view of a battery pack in some embodiments.

Fig. 2 illustrates a schematic structural view of a connector and a first structural member in some embodiments.

Fig. 3 shows a schematic structural view of the first housing in some embodiments.

Fig. 4 shows a schematic diagram of the structure of the connector mounted to the first housing in some embodiments.

FIG. 5 illustrates a schematic structural view of a first structural member in some embodiments.

FIG. 6 illustrates a schematic structural view of another perspective of the first structural member in some embodiments.

Fig. 7 is a schematic diagram illustrating another perspective view of the connector mounted to the first housing in some embodiments.

Fig. 8 shows a schematic cross-sectional view of a battery pack in a width direction in some embodiments.

Fig. 9 shows a schematic view of the structure of the connector mounted on the first housing in other embodiments.

Fig. 10 shows a schematic view of the structure of the first housing in other embodiments.

Fig. 11 is a schematic view of another embodiment of the connector mounted to the first housing from another perspective.

Fig. 12 shows a schematic view of the assembly of the connector and the first housing in an embodiment.

Fig. 13 shows a schematic structural diagram of an electric device in an embodiment.

Description of the main element symbols:

battery pack 100

Power utilization device 200

Battery pack 10

Second housing component 11

First housing assembly 20

Opening 20a

First housing 21

Accommodation chamber 21a

First region 21b

First sub-region 211b

First portion 2111

Second portion 2112

Second through hole 211c

Convex part 211

First retaining member 212

Second catch 213

Tendon position 214

Handle 215

Second housing 22

Wire harness 30

Conductor 31

Connector 40

First part 41

Second part 42

First structural member 50

Fastener 50a

First surface 50b

Second surface 50c

Accommodating part 50d

First recess 51

First via 511

Second recess 52

Fixing member 60

Width direction X

Length direction Y

Thickness direction Z

The following specific examples will further illustrate the application in conjunction with the above figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.

It will be appreciated that identical, equal, parallel, perpendicular or overlapping, tolerances of 0- ± 10% between the two elements are permissible.

Referring to fig. 1 and 2, an embodiment of the present application provides a battery pack 100, and the battery pack 100 includes a battery pack 10, a first case assembly 20, a wire harness 30, and a connector 40. The battery pack 10 includes a second housing assembly 11, a plurality of battery cells (not shown) stacked in a stacked manner, and a circuit board (not shown) connected to the plurality of battery cells, and the plurality of battery cells and the circuit board are disposed in the second housing assembly 11. The wire harness 30 has one end connected to the circuit board and the other end extended outwardly from the inside of the second housing member 11 and connected to the connector 40. In one embodiment, the wiring harness 30 includes a single or multiple wires 31, one end of the wire 31 is connected to the circuit board, and the other end is connected to the connector 40. The first housing member 20 has an opening 20a, the connector 40 is fixed in the first housing member 20 and is provided in the opening 20a, and the external electric device is connected to the connector 40 through the opening 20a so that the battery pack 100 supplies energy to the external electric device or the external device charges the battery pack 100. In the battery pack 100, the circuit board and the connector 40 are directly connected through the wiring harness 30, so that the number of the plug-in terminals for connecting the connector 40 and the wiring harness 30 is reduced, and the risk of short circuit of the battery pack 100 is reduced. The safety and reliability of the battery pack 100 are improved. It is understood that the cells may be provided as a single cell.

In one embodiment, the battery pack 100 further includes a first structural member 50, the connector 40 is mounted to the first structural member 50 by a fastener 50a, and the first structural member 50 is fixed to the first housing assembly 20 and mounts the connector 40 in the opening 20 a.

Referring to fig. 1, 3 and 4, the first housing assembly 20 includes a first housing 21 and a second housing 22, the first housing 21 has a receiving cavity 21a, the battery pack 10 is disposed in the receiving cavity 21a, and the second housing 22 is connected to the first housing 21 to seal the receiving cavity 21a and fix the battery pack 10 in the receiving cavity 21 a. In one embodiment, the first housing 21 and the second housing 22 are fixedly connected by a snap fit. In another embodiment, the first housing 21 and the second housing 22 may be fixedly connected by means of adhesion.

In one embodiment, the opening 20a is opened on the first housing 21 and communicates with the accommodating chamber 21 a. The connector 40 is disposed in the receiving cavity 21a and at least partially located in the opening 20a, so as to facilitate an external electrical device to electrically connect with the connector 40 or an external device to charge the battery pack 100.

In one embodiment, the first housing 21 includes a protrusion 211, the protrusion 211 and a sidewall of the first housing 21 enclose a first area 21b, the opening 20a is disposed in the first area 21b, and the first area 21b is disposed in the receiving cavity 21 a. An area between the edge of the opening 20a and the convex portion 211 and an area between the edge of the opening 20a and the side wall of the first housing 21 are first sub-areas 211b, and the first housing 21 is provided with a first catch 212 and a second catch 213. The first retaining member 212 is fixed on the sidewall of the first housing 21, the second retaining member 213 is disposed on the first sub-region 211b, and the second retaining member 213 has a certain elasticity for adjusting a distance relative to the first retaining member 212, so as to fix the first structural member 50 on the first sub-region 211b, and further to place the connector 40 mounted on the first structural member 50 in the opening 20 a. The first region 21b is formed by the convex portion 211 cooperating with the side wall of the first housing 21, which simplifies the fixed connection of the first structural member 50 to the first housing 21.

In an embodiment, the extending direction of the shorter one of the two adjacent sides of the first housing 21 is the width direction X, the extending direction of the longer side is the length direction Y, and the first retaining member 212 and the second retaining member 213 are disposed oppositely along the width direction X of the first housing 21, so as to facilitate the installation of the first structural member 50. In one embodiment, the width direction X is perpendicular to the length direction Y.

In one embodiment, the first sub-region 211b is provided with a rib 214 and a glue layer (not shown) covering the rib 214 for sealing the first structural member 50 and the first shell 21. Not only can promote the structural strength of first shell 21 through setting up muscle position 214, can also increase the area of contact of first shell 21 and glue film, promote the bonding effect of glue film and first shell 21, and then promote the leakproofness between first structural component 50 and the first shell 21.

In one embodiment, a handle 215 is further disposed on a side of the first housing 21 facing away from the second housing 22, and the battery pack 100 is easily moved by the handle 215.

Referring to fig. 2, the connector 40 includes a first part 41 and a second part 42, wherein the first part 41 is disposed in the opening 20a, and the second part 42 is connected to the first structural member 50.

Referring to fig. 5 and 6, the first structural member 50 includes a first surface 50b and a second surface 50c opposite to each other in a thickness direction Z of the first structural member, the first structural member 50 further includes a receiving portion 50d, the receiving portion 50d penetrates through the first surface 50b and the second surface 50c, the first component 41 is connected to the first surface 50b, and the second component 42 is disposed in the receiving portion 50 d. In one embodiment, the thickness direction Z is perpendicular to the width direction X and the length direction Y, respectively.

The first surface 50b is provided with a first recess 51, and the first recess 51 is provided with a first through hole 511 therein, the first through hole 511 being used for fitting the fastener 50a to mount the connector 40 in the first recess 51. In one embodiment, the first recess 51 has the same projected shape and size as the first member 41 in the thickness direction Z of the first structural member 50. In one embodiment, the shape and size of the projection of the receiving portion 50d along the thickness direction Z of the first structural member 50 are the same as the shape and size of the projection of the second component 42 provided in the receiving portion 50 d. Referring to fig. 7, in an embodiment, along the thickness direction Z of the first structural member 50, the projection shape and size of the first part 41 on the second housing 22 are the same as the projection shape and size of the opening 20a on the second housing 22. Referring to fig. 4, in an embodiment, along the thickness direction Z of the first structural member 50, a projection shape of the first structural member 50 on the second housing 22 is similar to a projection shape of the first region 21b on the second housing 22. With the profile mounting structure described above, the mounting steps of the connector 40 and the first structural member 50 are simplified, the probability of mounting errors is reduced, and the amount of glue used during sealing can be reduced.

The second surface 50c is provided with a second recess 52, and the second catch 213 is disposed in the second recess 52, so as to fix the first structural member 50 to the first sub-region 211 b.

Referring to fig. 4 and 8, when the first structure 50 is mounted, the first retaining member 212 is first used to retain the second surface 50c of the first structure 50, and then the second retaining member 213 is used to retain the second surface in the second recess 52, so that the first surface 50b contacts and connects with the first sub-region 211b, thereby fixing the first structure 50 to the first sub-region 211b and disposing the first part 41 of the connector 40 in the opening 20 a.

Referring to fig. 9, 10 and 11, in an embodiment, the battery pack 100 further includes a fixing member 60, and the fixing member 60 directly fixes the connector 40 in the first housing 21 and enables the first part 41 of the connector 40 to be disposed in the opening 20 a. Through the direct fixation of the fixing member 60, the first structural member simplifies the structure of the first housing 21, reduces the manufacturing cost, can reduce the number of fixing members, and improves the versatility of the first housing 21.

In one embodiment, the first sub-region 211b includes a first portion 2111 and a second portion 2112, wherein the first portion 2111 is provided with the rib portion 214 and the second portion 2112 is provided with the second through hole 211 c. The second portions 2112 are oppositely disposed on both sides of the opening 20a in the width direction X. Referring to fig. 12, the first component 41 of the connector 40 is connected to the second portion 2112 in a contact manner, the fixing member 60 passes through the second through hole 211c from the outside of the first housing 21 and extends into the first housing 21 to connect the first component 41, so that the first component 41 is installed in the opening 20a, and a glue layer is provided on the first portion 2111 to seal the gap between the first component 41 and the first portion. In one embodiment, the fixing member 60 is a rivet and has insulation.

Referring to fig. 13, the present application also provides an electric device 200 using the battery pack 100, which can be used by connecting the connector 40 through a wire. In one embodiment, the powered device 200 of the present application may be, but is not limited to, a portable facsimile machine, a portable copier, a portable printer, a handheld cleaner, a transceiver, a backup power source, a motor, an electric car, an electric motorcycle, an electric power assisted bicycle, an electric power tool, a household large-sized battery, and the like.

The utility model provides a group battery 100 and consumer 200 is through being connected circuit board and connector 40 directly through pencil 30, reduce the plug-in terminal that sets up connector 40 and pencil 30 and be connected, reduce the short circuit risk of group battery 100, promote group battery 100's safety in utilization and reliability, reduce the plug-in terminal to inserting not in place and not hard up the influence to group battery 100, reduce the length that sets up plug-in terminal and still shortened pencil 30, it carries out extra fixed to pencil 30 to reduce, reduce ribbon and pencil 30 secant at the vibration in-process, the risk of dropout, first shell 21 reduces and sets up ribbon fixed position, and the manufacturing cost is reduced.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims (10)

1. A battery pack comprising a circuit board, wherein the battery pack further comprises:

a first housing assembly having an opening;

a wire harness;

a connector fixed to the first housing assembly and disposed at the opening;

one end of the wire harness is connected with the circuit board, and the other end of the wire harness is connected with the connector.

2. The battery pack of claim 1, further comprising:

a first structural member, the connector being disposed on the first structural member, the first structural member being secured to the first housing component, the connector being at least partially disposed in the opening.

3. The battery pack of claim 2, wherein the first structural member comprises:

a first surface and a second surface that are disposed opposite to each other in a thickness direction of the first structural member;

a receiving portion penetrating the first and second surfaces;

the connector is connected to the first surface and is arranged in the accommodating part.

4. The battery pack according to claim 3, wherein the first structural member includes a first recess, the first surface and the first recess are provided on the same side of the first structural member, and the connector is connected to the first recess such that a projection of the connector overlaps the first recess in a thickness direction of the first structural member.

5. The battery pack according to claim 3, wherein the second surface is provided with a second recess, the first housing assembly is provided with a second retaining member, the second retaining member is retained on the second surface, and the second retaining member is disposed in the second recess.

6. The battery of claim 3, wherein the first housing component comprises a protrusion that encloses a first region with a sidewall of the first housing component, the opening is disposed in the first region, a region between an edge of the opening and the protrusion and a region between the edge of the opening and the sidewall of the first housing component are first sub-regions, and the first structural member is at least partially disposed in the first sub-regions.

7. The battery of claim 6, wherein the first surface is disposed in the first subregion, the first subregion having a layer of adhesive disposed in a gap between the first structural member and the first housing component.

8. The battery pack of claim 1, further comprising:

and the fixing piece penetrates through the outer surface of the first shell assembly and is connected with the connector so as to fix the connector to the opening.

9. The battery pack of claim 1, further comprising:

a second housing assembly; and

the battery cell is arranged in the second shell assembly and is electrically connected to the circuit board;

the wire harness is connected with the circuit board and extends outwards to the second shell assembly.

10. An electric device characterized by comprising the battery pack according to any one of claims 1 to 9.

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