CN221176572U

CN221176572U - Connection assembly, battery pack and electric equipment

Info

Publication number: CN221176572U
Application number: CN202322665174.7U
Authority: CN
Inventors: 尧宇超; 冯立臣; 曾而平; 殷继炜; 郑楚豪
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-06-18
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a connecting component, a battery pack and electric equipment, wherein the connecting component comprises: the first connecting piece and the second connecting piece are connected with each other, and the first connecting piece and the second connecting piece are electrically connected and are each configured to be suitable for electrically connecting with an electric piece; the first fixing piece is arranged at the joint of the first connecting piece and the second connecting piece and matched with the fitting to be assembled so as to fix the first connecting piece and the second connecting piece to be assembled. According to the connecting assembly, after the first connecting piece and the second connecting piece are connected, the first fixing piece is matched with the first connecting piece to assemble the first connecting piece and the second connecting piece on the fitting to be assembled, so that the first connecting piece and the second connecting piece can be assembled quickly, and the production efficiency and the product yield are improved greatly.

Description

Connection assembly, battery pack and electric equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to a connecting component, a battery pack with the connecting component and electric equipment.

Background

The current battery pack's electric core module and distribution are connected mostly and are adopted fixing the block terminal earlier, and the copper bar is fixed again, carries out the mode of electric connection of electric core module and distribution end respectively and is connected, and this kind of mode is heavier to producing line assembly burden, influences production efficiency and product yield to current battery pack's distribution is connected the copper bar and is fastened after the distribution assembly is accomplished, but can lead to observing the sight of bolt fastening face and be obstructed like this, can't confirm the reliability of electric connection, appears the blind typing phenomenon.

Disclosure of utility model

The utility model provides a new technical scheme of connection and assembly, which at least can solve the problems of low assembly efficiency and poor reliability of the connection assembly in the prior art.

The utility model also provides a battery pack, which comprises the connecting assembly of the embodiment.

The utility model also provides electric equipment, which comprises the battery pack of the embodiment.

According to a first aspect of the present utility model there is provided a connection assembly comprising: a first connector and a second connector connected to each other, the first connector and the second connector being electrically connected and each configured to be adapted to connect an electrical component; the first fixing piece is arranged at the joint of the first connecting piece and the second connecting piece and is matched with the fitting to be assembled so as to fix the first connecting piece and the second connecting piece to the fitting to be assembled.

Optionally, the first connecting piece is provided with a first step part, the second connecting piece is provided with a second step part, and the first step part and the second step part are overlapped with each other and are connected through welding.

Optionally, the first end of the first connecting piece is connected with the first end of the second connecting piece, and the second end of the first connecting piece and the second end of the second connecting piece are respectively provided with a connecting hole suitable for connecting an electrical component.

Optionally, a deformation portion is disposed between the first end and the second end of the first connecting member, and the deformation portion is deformable to adjust a position of the first end of the first connecting member relative to the second end.

Optionally, the first fixing piece is provided with a first mounting hole penetrating along a first direction, and a connection part of the first connecting piece and the second connecting piece is located in the first mounting hole.

Optionally, the to-be-assembled part is provided with a through hole penetrating along the first direction, and the first fixing piece is inserted into the through hole so as to fix the first connecting piece and the second connecting piece to the to-be-assembled part.

Optionally, the connection assembly further comprises: the second fixing piece is arranged on the through hole, and the second fixing piece is matched with the first fixing piece to fix the first fixing piece to the fitting to be assembled.

Optionally, the second fixing member includes: the second main body part is arranged on one side of the fitting to be assembled and is connected with the fitting to be assembled; the second sealing part is internally provided with a second mounting hole penetrating along the first direction, the second sealing part is arranged between the inner wall surface of the through hole and the first fixing piece, and the first fixing piece is inserted into the second mounting hole.

Optionally, a glue storage groove is formed in one side, facing the to-be-assembled part, of the second main body part, and the glue storage groove is used for containing an adhesive.

Optionally, the connection assembly further comprises: and the sealing piece is arranged between the first fixing piece and the second sealing part.

Optionally, at least one of the first fixing member and the second fixing member is a ceramic member.

According to a second aspect of the present utility model, there is provided a battery pack comprising: a housing comprising a component to be assembled; the first electric piece and the second electric piece are respectively arranged at two sides of the fitting to be assembled; the connection assembly according to the above embodiment, the first connection member and the second connection member are electrically connected to the first electrical member and the second electrical member, respectively.

According to a third aspect of the present utility model, there is provided a powered device, including the battery pack according to the above embodiment.

According to the connecting assembly, after the first connecting piece and the second connecting piece are connected, the first fixing piece is matched with the first connecting piece to assemble the first connecting piece and the second connecting piece on the fitting to be assembled, so that the first connecting piece and the second connecting piece can be assembled quickly, and the production efficiency and the product yield are improved greatly.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is a schematic view of an assembly of a first connector and a second connector of a connector assembly according to one embodiment of the present utility model;

FIG. 2 is an assembled schematic view of a first connector, a second connector and a first fastener of a connector assembly according to one embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a connection assembly according to one embodiment of the utility model;

FIG. 4 is a schematic view of the structure of a first fixture of the connection assembly according to one embodiment of the present utility model;

FIG. 5 is a schematic structural view of a connection assembly according to one embodiment of the present utility model;

FIG. 6 is a schematic structural view of a second securing member of the connection assembly according to one embodiment of the present utility model;

FIG. 7 is a schematic view of a second mount of a connection assembly at another angle according to one embodiment of the present utility model;

Fig. 8 is a schematic structural view of a battery pack according to an embodiment of the present utility model.

Reference numerals:

A connection assembly 100;

a first connector 10; a first step 11; a deformation section 12; a connection hole 13;

a second connector 20; a second step portion 21;

A first fixing member 30; a first mounting hole 31;

a second fixing member 40; a second body portion 41; a glue storage slot 411; a second seal portion 42; a second mounting hole 43;

a seal 50;

A fitting 200 to be mounted;

A battery pack 300;

A housing 60; a cell group 70; and a distribution box 80.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

A connection assembly 100 according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 8, a connection assembly 100 according to an embodiment of the present utility model includes: the first connector 10, the second connector 20 and the first fixing member 30.

Specifically, the first connector 10 and the second connector 20 are configured to be suitable for electrically connecting electrical components, the first connector 10 is electrically connected with the second connector 20, the first fixing member 30 is disposed at a connection portion of the first connector 10 and the second connector 20, and the first fixing member 30 is matched with the fitting 200 to fix the first connector 10 and the second connector 20 to the fitting 200.

In other words, as shown in fig. 1 to 3, the connection assembly 100 according to the embodiment of the present utility model may be used to assemble the first and second connection members 10 and 20 to the fitting 200, wherein the connection assembly 100 may be mainly composed of the first and second connection members 10 and 20 connected to each other, and the first fixing member 30 to assemble the first and second connection members 10 and 20 to the fitting 200. The first connecting member 10 and the second connecting member 20 may be used for connecting electrical components, for example, when the connecting assembly 100 is used for a battery pack, the connecting assembly 100 may be disposed between a distribution box and a battery cell mounting cavity of the battery pack, the first connecting member 10 may be used for connecting a battery cell in the battery cell mounting cavity, the second connecting member 20 may be used for connecting a high-voltage electrical component in the distribution box, and the first connecting member 10 and the second connecting member 20 are connected to each other, so as to electrically connect the electrical component in the distribution cavity and the battery cell in the battery cell mounting cavity.

The first fixing member 30 may be disposed at a position where the first connecting member 10 and the second connecting member 20 are connected to each other, and may be configured such that the first connecting member 10 and the second connecting member 20 are assembled to the fitting 200 on the basis of fixing the first connecting member 10 and the second connecting member 20, for example, when the connecting assembly 100 is used for a battery pack, the fitting 200 may be a partition member for separating the distribution chamber from the battery cell mounting chamber, the partition member may play a role of separating the distribution chamber from the battery cell mounting chamber, and the first connecting member 10 and the second connecting member 20 may be fixed to the fitting 200 by the first fixing member 30, so that on the basis of ensuring a separation effect between the distribution chamber and the battery cell mounting chamber, electrical connection between the battery cell and the electrical components in the distribution chamber may be ensured. And after the first connecting piece 10 and the second connecting piece 20 are integrally assembled, the first fixing piece 20 is used for fixing the first connecting piece 10 and the second connecting piece 20 to the assembly to be assembled 200, so that the independent assembly of the first connecting piece 10 and the second connecting piece 20 can be avoided, the assembly efficiency is greatly improved, one of the first connecting piece 10 or the second connecting piece 20 can be electrically connected with the corresponding electric piece first, then penetrates through the assembly to be assembled 200, and then is fixed to the assembly to be assembled 200 by the first fixing piece 30, the other of the first connecting piece 10 or the second connecting piece 20 is electrically connected with the other electric piece, the stability of the electric connection between the first connecting piece 10 or the second connecting piece 20 and the electric piece can be ensured, the blind printing problem existing in the electric connection between the first connecting piece 10 or the second connecting piece 20 after the first connecting piece is fixed first and then is electrically connected with the electric piece is avoided, and the reliability of the electric connection between the electric pieces is ensured.

Therefore, according to the connection assembly 100 of the present utility model, after the first connector 10 and the second connector 20 are connected, the first connector 10 and the second connector 20 are assembled to the fitting 200 by the first fixing member 30, so that the rapid assembly of the first connector 10 and the second connector 20 can be realized, the production efficiency and the product yield can be greatly improved, and one of the first connector 10 and the second connector 20 can be fastened after being assembled to the electrical component, so that the reliability of the electrical connection of the electrical component can be ensured.

According to one embodiment of the present utility model, the first connector 10 is provided with a first step 11, and the second connector 20 is provided with a second step 21, and the first step 11 and the second step 21 overlap each other and are connected by welding.

Alternatively, the first fixing member 30 is provided with a first mounting hole 31 penetrating in the first direction, and the junction of the first and second connection members 10 and 20 is located in the first mounting hole 31.

Specifically, as shown in fig. 1 and 4, one ends of the first connecting member 10 and the second connecting member 20, which are close to each other and connected to each other, are respectively provided with a step structure, the assembly of the first connecting member 10 and the second connecting member 20 is achieved by adopting a connection mode of overlapping the step structures, the overlapped step parts are connected through welding, the first fixing member 30 is provided with a first mounting hole 31, the connection structure of the first connecting member 10 and the second connecting member 20 is positioned in the first mounting hole 31, the connection stability and the structural strength between the first connecting member 10 and the second connecting member 20 can be effectively increased, and the connection structure of the first connecting member 10 and the second connecting member 20 is arranged in the first mounting hole 31, so that the connection structure of the first connecting member 10 and the second connecting member 20 can be effectively fixed, and the connection stability of the connection assembly 100 is ensured.

In some embodiments of the present utility model, the first end of the first connector 10 is connected to the first end of the second connector 20, and the second end of the first connector 10 and the second end of the second connector 20 are respectively provided with a connection hole 13 adapted to connect electrical components.

As shown in fig. 1 and 2, one ends of the first and second connection members 10 and 20, which are close to each other and connected to each other, are respectively provided with a stepped structure, and one ends of the first and second connection members 10 and 20, which are far from each other, are respectively provided with connection holes 13, the connection holes 13 may be used to electrically connect the first connection member 10 or the second connection member 20 with an electrical component through an external connection structure such as a bolt, for example, the connection holes 13 of the first connection member 10 may be used to assemble the first connection member 10 with a battery cell through a bolt, and the connection holes 13 of the second connection member 20 may be used to assemble the second connection member 20 with a power distribution element through a bolt.

Therefore, the first connecting piece 10 and the second connecting piece 20 with the structure are simple to assemble and convenient to operate, the assembling stability of the first connecting piece 10 and the second connecting piece 20 and the electric parts can be effectively improved, and the cost is low.

According to some embodiments of the present utility model, a deformation portion 12 is provided between the first end and the second end of the first connector 10, and the deformation portion 12 is deformable to adjust the position of the first end of the first connector 10 relative to the second end.

Specifically, as shown in fig. 1, in this embodiment, a deformation portion 12 capable of deforming may be disposed in a region between the first end and the second end of the first connector 10, where the deformation portion 12 is disposed between the first end and the second end of the first connector 10, so that the deformation portion 12 may not only function to connect the first end and the second end of the first connector 10, but also make the whole of the first connector 10 and the second connector 20 connected to form a soft row structure, and may deform when a position change occurs between the first end and the second end of the first connector 10, thereby absorbing an assembly tolerance between the first end and the second end of the first connector 10, and solving a problem that an existing battery pack connection row is generally a hard row and cannot absorb the assembly tolerance.

It should be noted that, the deformation portion 12 may be disposed between the first end and the second end of the first connecting member 10, or may be disposed between the first end and the second end of the second connecting member 20, or may be disposed between the two ends of the first connecting member 10 and the second connecting member 20, so long as the deformation portion 12 is disposed between the ends of the first connecting member 10 and the second connecting member 20 that are far away from each other, the design of the deformation portion 12 may effectively solve the problem that the existing hard-row connection structure cannot meet the requirement of absorbing assembly tolerance, and greatly improve the usable range of the connecting assembly 100.

In some embodiments of the present utility model, the fitting 200 is provided with a through hole 201 penetrating in a first direction, and the first fixing member 30 is inserted into the through hole 201 to fix the first and second connection members 10 and 20 to the fitting 200.

Specifically, as shown in fig. 3, the fitting 200 may be formed in a plate structure extending in a vertical direction, through holes 201 penetrating in a left-right direction are provided on the fitting 200, the first and second connectors 10 and 20 may extend in the left-right direction, respectively, the first fixing member 30 may be partially inserted into the through holes 201, and the portions of the first and second connectors 10 and 20 connected to each other may be fixed in the through holes 201, thereby simply and practically realizing the fixation of the first and second connectors 10 and 20 on the fitting 200.

Optionally, according to some embodiments of the utility model, the connection assembly 100 further comprises: the second fixing member 40, a portion of the second fixing member 40 is disposed in the through hole 201, and the second fixing member 40 cooperates with the first fixing member 30 to fix the first fixing member 30 to the assembly member 200.

Specifically, as shown in fig. 3 and 5, in order to further improve the fixing effect of the first and second connection members 10 and 20 on the fitting 200, the connection assembly 100 may further include a second fixing member 40, the second fixing member 40 may be disposed at the other side of the fitting 200 with respect to the first fixing member 30, for example, the first fixing member 30 may be disposed at the right side of the fitting 200 in a main body, and the second fixing member 40 may be disposed at the left side of the fitting 200 in a main body, and a portion of the second fixing member 40 and a portion of the first fixing member 30 may be located in the through hole 201, and a portion of the second fixing member 40 disposed in the through hole 201 may be engaged with the first fixing member 30, thereby further fixing the first fixing member 30 and the first and second connection members 10 and 20, and improving the connection stability of the first and second connection members 10 and 20.

In other embodiments of the present utility model, the second fixing member 40 includes: the second body 41 and the second sealing part 42, the second body 41 is set on one side of the fitting 200 and connected with the fitting 200, the second sealing part 42 is defined with the second mounting hole 43 penetrating along the first direction, the second sealing part 42 is set between the inner wall surface of the through hole 201 and the first fixing piece 30, the first fixing piece 30 is inserted into the second mounting hole 43.

Specifically, as shown in fig. 3, 6 and 7, the second fixing member 40 may mainly include two parts, namely, the second body 41 and the second sealing portion 42, where the second body 41 may be disposed on the left side of the to-be-assembled member 200, and the second body 41 may be in sealing connection with the left side surface of the to-be-assembled member 200, a part of the second sealing portion 42 extends into the through hole 201 to cooperate with the first fixing portion 30, and the second sealing portion 42 is provided with a second mounting hole 43 penetrating in the left-right direction, and the left end of the first fixing member 30 is inserted into the second mounting hole 43, that is, the second sealing portion 42 may be sleeved on the first fixing member 30 and located between the inner wall surface of the through hole 201 and the outer wall surface of the first fixing member 30, so as to achieve the effect of sealing the gap between the inner wall surface of the through hole 201 and the outer surface of the first fixing member 30, and effectively improve the sealing performance between the first connecting member 10 and the second connecting member 20 and the to-be-assembled member 200.

Alternatively, according to some embodiments of the present utility model, a side of the second body part 41 facing the fitting 200 is provided with a glue storage slot 411, and the glue storage slot 411 is used for receiving glue.

Specifically, as shown in fig. 3, the right side surface of the second main body portion 41 is provided with a glue storage slot 411 recessed leftwards, and the glue storage slot 411 can be used for filling adhesive, when the second main body portion 41 is assembled with the to-be-assembled component 200, the adhesive in the glue storage slot 411 can be connected with the left side surface of the to-be-assembled component 200, so that the effect of fixing the second main body portion 41 can be achieved, and the sealing effect between the two can be ensured.

In some embodiments of the present utility model, the connection assembly 100 further includes: and a seal member 50, wherein the seal member 50 is disposed between the first fixing member 30 and the second fixing member 40.

Specifically, as shown in fig. 3, a sealing member 50 is further provided between the first fixing member 30 and the second fixing member 40, and the sealing member 50 may function to seal the gap between the first fixing member 30 and the second fixing member 40, thereby further sealing the fitting gap between the fitting 200 and the first and second connection members 10 and 20. The sealing member 50 may be a sealing ring structure or an adhesive structure formed of a material having a sealing effect, such as an adhesive.

Optionally, at least one of the first fixture 30 and the second fixture 40 is a ceramic piece.

That is, one of the first fixing member 30 and the second fixing member 40, which achieve the sealing connection of the first connecting member 10 and the second connecting member 20 with the fitting member 200, may be a ceramic member, or both may be ceramic members. The fixing member made of ceramic material can be normally used in a high-temperature environment, even if thermal runaway occurs in the battery pack, the insulation failure of the ceramic sealing structure is not caused, the connection structure between the ceramic member and the first and second connecting members 10 and 20 is tight, and the tightness with the to-be-assembled fitting 200 can be ensured.

The battery pack 300 according to an embodiment of the present utility model may include: the casing 60 includes the fitting 200, the first electrical component may be the battery cell group 70, the first electrical component is disposed on one side of the fitting 200, the second electrical component may be a high-voltage electrical component in the distribution box 80, the second electrical component is disposed on the other side of the fitting 200, and the connection assembly 100 passes through a through hole 201 on the fitting 200 to connect the first electrical component and the second electrical component.

In other words, as shown in fig. 8, in the present embodiment, the battery pack 300 is mainly composed of the case 60, the battery pack 70 provided inside the case 60, the distribution box 80 provided at one side of the case 60, and the connection assembly 100 connecting the high-voltage electric components in the distribution box 80 with the battery pack 70, wherein a partition may be provided between the case 60 and the distribution box 80, that is, the side wall of the distribution box 80 may be formed as the assembly to be 200, the connection assembly 100 is penetrated through the partition, and the first connector 10 of the connection assembly 100 may be electrically connected with the distribution assembly in the distribution box 80, the second connector 20 may be electrically connected with the battery pack 70, the deformation portion 12 may be provided in the through hole 201 of the assembly to be 200, and when the first and second fixing members 30 and 40 are provided, the first connector 10 or the second connector 20 may be electrically connected with the corresponding electric components, and then the other portion may be penetrated through the through hole 201, and the first and second fixing members 30 and 20 may be fixed to the assembly to be assembled to the assembly to be 200.

The electric device according to the embodiment of the present utility model includes the battery pack 300 according to the above embodiment, and the electric device may be a vehicle, and the like, and since the battery pack 300 according to the above embodiment of the present utility model has the above technical effects, the electric device according to the embodiment of the present utility model also has corresponding technical effects, that is, the assembling efficiency of the connecting piece of the battery pack can be improved, and the stability of the overall assembly can be improved.

The structure of the battery pack 300 and the powered device according to the embodiment of the present utility model is understood and easily implemented by those skilled in the art, and thus will not be described in detail.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A connection assembly, comprising:

A first connector and a second connector connected to each other, the first connector and the second connector being electrically connected and each configured to be adapted to electrically connect an electrical component;

the first fixing piece is arranged at the joint of the first connecting piece and the second connecting piece and is matched with the fitting to be assembled so as to fix the first connecting piece and the second connecting piece to the fitting to be assembled.

2. The connection assembly according to claim 1, wherein the first connection member is provided with a first step portion, the second connection member is provided with a second step portion, and the first step portion and the second step portion overlap each other and are connected by welding.

3. The connection assembly of claim 1, wherein the first end of the first connector is connected to the first end of the second connector, and the second end of the first connector and the second end of the second connector are each provided with a connection hole adapted to connect an electrical component.

4. The connection assembly of claim 1, wherein a deformation is provided between the first and second ends of the first connector, the deformation being deformable to adjust the position of the first end of the first connector relative to the second end.

5. The connection assembly of claim 1, wherein the first securing member is provided with a first mounting hole therethrough in a first direction, and wherein a junction of the first and second connecting members is located within the first mounting hole.

6. The connection assembly according to claim 5, wherein the fitting to be assembled is provided with a through hole penetrating in the first direction, and the first fixing member is adapted to be inserted into the through hole to fix the first and second connection members to the fitting to be assembled.

7. The connection assembly of claim 6, further comprising:

The second fixing piece is arranged on the through hole, and the second fixing piece is matched with the first fixing piece to fix the first fixing piece to the fitting to be assembled.

8. The connection assembly of claim 7, wherein the second securing member comprises:

the second main body part is arranged on one side of the fitting to be assembled and is connected with the fitting to be assembled;

The second sealing part is internally provided with a second mounting hole penetrating along the first direction, the second sealing part is arranged between the inner wall surface of the through hole and the first fixing piece, and the first fixing piece is inserted into the second mounting hole.

9. The connection assembly according to claim 8, wherein a glue reservoir is provided on a side of the second body portion facing the fitting to be assembled, the glue reservoir being for receiving an adhesive.

10. The connection assembly of claim 8, further comprising:

and the sealing piece is arranged between the first fixing piece and the second sealing part.

11. The connection assembly of claim 7, wherein at least one of the first and second securing members is a ceramic member.

12. A battery pack, comprising:

A housing comprising a component to be assembled;

The first electric piece and the second electric piece are respectively arranged at two sides of the fitting to be assembled;

The connection assembly of any one of claims 1-11, the first and second connection members electrically connecting the first and second electrical members, respectively.

13. A powered device comprising the battery pack of claim 12.