CN211719694U

CN211719694U - Electricity core subassembly and battery package

Info

Publication number: CN211719694U
Application number: CN202020684525.2U
Authority: CN
Inventors: 赵峰; 李乐
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-10-20
Anticipated expiration: 2030-04-28

Abstract

The utility model relates to a power battery wraps technical field, provides a battery pack and battery package. The cell subassembly include: a plurality of cells having a terminal post; and the box body is internally provided with a plurality of accommodating cavities for placing a plurality of battery cells, the accommodating cavity inner wall is provided with a connecting piece which can be contacted with the pole, and any one of the connecting pieces which are used for accommodating the cavity inner wall is arranged into a connecting piece which can be connected with the connecting piece which is used for accommodating the cavity inner wall, the box body is provided with a sampling interface, and the connecting piece is connected with the sampling interface through a sampling line. The utility model discloses a cell subassembly is convenient for realize the maintenance of dismantling of single electric core, reduces the maintenance cost, has cancelled the design of independent spare parts such as copper bar and pencil, makes sampling line and connecting piece integration inside the box, has reduced spare part administrative cost and occupation space.

Description

Electricity core subassembly and battery package

Technical Field

The utility model relates to a power battery wraps technical field, in particular to battery pack and battery package.

Background

With the gradual popularization of electric vehicles, the cruising ability of the electric vehicles is more and more concerned, and meanwhile, the design of the power battery pack in the electric vehicles is continuously updated by people.

At present, a power battery pack is generally formed by connecting a plurality of battery modules in series, and the battery modules are assembled into a module by a battery core and then connected and integrated into a whole pack system. Whole actual assembling process is loaded down with trivial details, and module casing and connection mounting have wasted a large amount of battery package spaces to a lot of unnecessary weight has been increased. In addition, extra pencil and copper bar need be used in sampling and circular telegram, and then will occupy more spaces to the module that electric core is constituteed can't be dismantled, can only replace whole module after single electric core goes wrong, causes unnecessary extravagant.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a maintenance can be dismantled convenient to realize single electric core, maintenance cost's electric core subassembly is reduced.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an electric core assembly, comprising:

a plurality of cells having a terminal post; and

the box, be equipped with in the box and be used for placing a plurality of the chamber that holds of electricity core, it is equipped with can with the connecting piece that utmost point post contacted, arbitrary one to hold intracavity wall the connecting piece sets up to can with other hold intracavity wall the connecting piece is connected, be equipped with the sampling interface on the box, the connecting piece pass through the sampling line connect in the sampling interface.

Optionally, the connecting member is configured as a telescopic structure capable of protruding out of the plane of the inner wall of the accommodating cavity.

Optionally, a plurality of the accommodating cavities are arranged in the box body in a matrix form, and an interlayer for arranging the sampling lines is formed between the accommodating cavities.

Optionally, each accommodating cavity is configured to accommodate one battery cell, and two adjacent accommodating cavities are configured to share one connecting piece.

Optionally, a positive output electrode and a negative output electrode are arranged on the box body.

Optionally, the box body is provided with more than two sampling interfaces.

Optionally, the post includes a positive post and a negative post which are oppositely disposed at two sides of the battery cell, and the inner walls of the accommodating cavity corresponding to the positive post and the negative post are respectively provided with the connecting piece.

Optionally, the top of the accommodating cavity is set to be open, the bottom of the accommodating cavity is set to be open, or the bottom of the accommodating cavity is provided with a bottom plate.

Compared with the prior art, the electric core component has the following advantages:

the utility model discloses a be equipped with the chamber that holds that is used for placing electric core in the box of electricity core subassembly, and realize the series-parallel connection between the electric core through setting up at the connecting piece that holds the intracavity wall, and then be convenient for realize the maintenance of dismantling of single electric core, reduce the maintenance cost, the design of having cancelled independent spare parts such as copper bar and pencil, make sampling line and connecting piece integration inside the box, spare part administrative cost has been reduced, occupation space has been reduced, effectively reduced because the risk such as the too much extrusion interference wear short circuit that causes of spare part in the electricity core subassembly.

Another object of the utility model is to provide a maintenance dismantled convenient to realize single electric core reduces the battery package that the maintenance cost reduced spare part administrative cost simultaneously.

a battery pack comprises a lower shell and the electric core assembly in any scheme arranged on the lower shell.

Optionally, the lower shell and the box body are integrally injection-molded; or

The box body is detachably arranged on the lower shell.

The advantages of the battery pack and the battery cell assembly are the same as those of the battery cell assembly in the prior art, and are not described in detail herein.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 and fig. 2 are schematic structural views of an electric core assembly according to an embodiment of the present invention.

Description of reference numerals:

1-electric core, 2-utmost point post, 3-box, 4-hold chamber, 5-connecting pieces, 6-sampling interface, 7-intermediate layer, 8-anodal output, 9-negative pole output, 10-lower casing.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

With reference to fig. 1 and 2, according to an aspect of the present invention, there is provided a cell assembly, comprising:

a plurality of battery cells 1, wherein the battery cells 1 are provided with poles 2; and

the box 3, be equipped with in the box 3 and be used for placing a plurality of electric core 1 a plurality of chamber 4 that hold, hold 4 inner walls in chamber be equipped with can with the connecting piece 5 that utmost point post 2 contacted, arbitrary one hold 4 inner walls the connecting piece 5 set up to can with other hold 4 inner walls in chamber the connecting piece 5 is connected, be equipped with sampling interface 6 on the box 3, connecting piece 5 through sampling line connection in sampling interface 6.

In the electric core assembling process, electric core 1 is placed in the chamber 4 that holds of box 3, and electric core 1's utmost point post 2 and the 5 mutual crimping contacts of connecting piece that hold the 4 inner walls in chamber realize circular telegram between electric core 1, can understand ground, and connecting piece 5 adopts electrically conductive material, like aluminium etc.. Through being connected arbitrary connecting piece 5 that holds the cavity 4 inner wall with other connecting pieces 5 that hold the cavity 4 inner wall, simultaneously through changing connected mode, can realize the series-parallel connection between electric core 1. When a single electric core 1 breaks down, the electric core 1 with the fault is convenient to take out from the accommodating cavity 4, and the electric core 1 is placed back into the accommodating cavity 4 after maintenance or replacement, so that the electric core 1 is convenient to disassemble and maintain.

The box body 3 is integrated with sampling interfaces 6, the number of the sampling interfaces 6 may be one or more, and in this embodiment, the box body 3 is provided with more than two sampling interfaces 6. By setting the sampling interfaces 6 more than two, it is possible to divide the electric core 1 into regions and correspond the electric cores 1 in different regions to different sampling interfaces 6, that is, the electric cores 1 in different regions are connected to different sampling interfaces 6 through sampling lines. Here, the sampling line generally refers to a voltage sampling line.

It can be seen, the utility model discloses a passing through of electricity core subassembly is equipped with the chamber that holds that is used for placing electric core in the box, and realize the series-parallel connection between the electric core through setting up at the connecting piece that holds the intracavity wall, and then be convenient for realize the maintenance of dismantling of single electric core, reduce the maintenance cost, the design of having cancelled independent spare parts such as copper bar and pencil, make sampling line and connecting piece integrated inside the box, spare part administrative cost has been reduced, occupation space has been reduced, effectively reduced because the too much extrusion that causes of spare part interferes risks such as wearing and tearing short circuit in the electricity core subassembly.

In order to guarantee that electric core 1 puts into and holds chamber 4 back, electric core 1's utmost point post 2 can with hold 5 in close contact with of the connecting piece of 4 inner walls in chamber, improve the stability of connecting, connecting piece 5 sets up to be in can outstanding in hold the planar extending structure in chamber 4 inner walls place. Through the connecting piece 5 that adopts extending structure, make electric core 1 hold 4 in-processes putting into, connecting piece 5 can receive indentation behind electric core 1's the extrusion and hold 4 inner walls place planes in chamber, thereby guarantee to hold the level and smooth of 4 internal faces in chamber as far as possible, avoid causing any hindrance to electric core 1's installation, put into when electric core 1 simultaneously and hold behind chamber 4, connecting piece 5 will release the extension, provide the biasing force towards electric core 1, from this under the effect of biasing force, guarantee compressing tightly between connecting piece 5 and electric core 1's utmost point post 2, realize the intimate connection between the two. In addition, above-mentioned connecting piece 5 can adopt the spring structure, or other can realize flexible structure wantonly, the utility model discloses do not do special restriction to this.

Utmost point post 2 of electric core 1 can set up to 1 surfaces of protrusion electric core, also can not bulge electric core 1 surfaces, all can not cause the influence to the butt between utmost point post 2 and the connecting piece 5. In this embodiment, the pole 2 and the connecting piece 5 are both cylindrical, but in other embodiments, other suitable shapes may be provided.

It should be noted that the plurality of accommodating chambers 4 may be arranged in any suitable manner in the box 3 according to actual needs. In order to realize series-parallel connection among the battery cells 1, a plurality of the accommodating cavities 4 are arranged in the box body 3 in a matrix form, and an interlayer 7 for arranging the sampling lines is formed between the accommodating cavities 4. Therefore, the connection between the sampling line and the connecting piece 5 is carried out in the interlayer 7 of the box body 3, and the sampling line is hidden in the interlayer 7, so that the exposure of parts is reduced, and the use safety is improved.

Generally speaking, in order to further improve the convenience in assembling and disassembling the single battery cell 1, each of the accommodating cavities 4 is configured to be capable of accommodating one of the battery cells 1, understandably, the shape of the accommodating cavity 4 needs to be configured to be matched with the shape of the battery cell 1, and if the battery cell 1 is a square battery cell, the corresponding accommodating cavity 4 will also be a regular square. In order to provide a simpler connection mode of the connecting piece 5, two adjacent accommodating cavities 4 are arranged to share one connecting piece 5, specifically, a single connecting piece 5 is arranged to penetrate through an interlayer 7 between the two accommodating cavities 4 and can simultaneously extend into the two accommodating cavities 4 so as to realize connection between the two electric cores 1, and further, a foundation is provided for serial and parallel connection between the subsequent electric cores 1. It should be noted that the two adjacent accommodating cavities 4 may refer to two adjacent accommodating cavities arranged in the transverse direction of the matrix, or may refer to two adjacent accommodating cavities arranged in the longitudinal direction of the matrix.

It is worth noting that the pole 2 comprises a positive pole and a negative pole which are oppositely arranged on two sides of the battery core 1, and the inner walls of the accommodating cavity 4 corresponding to the positive pole and the negative pole are respectively provided with the connecting piece 5. Through setting up anodal utmost point post and negative pole utmost point post respectively in electric core 1's both sides, can corresponding adjusting connecting piece 5 set up the position, also on two inner walls that hold chamber 4 in opposite directions promptly to make things convenient for the sampling line to walk the line and the connection between the connecting piece 5.

In addition, a positive output electrode 8 and a negative output electrode 9 are provided on the case 3. After all the battery cells 1 are connected in series and in parallel, the anodes and the cathodes of the two battery cells 1 are respectively used as an anode output electrode 8 and a cathode output electrode 9. Wherein, anodal output pole 8, negative pole output pole 9 and sampling interface 6 are all integrated and are carried out the export to the outside on a panel of box 3, from this for battery power supply part is whole integrated, improves the integrated level, makes whole package more regular, and space utilization is higher, reduces the security problem that complicated structure arouses.

For making things convenient for electric core 1 to place in holding chamber 4, the top that holds chamber 4 sets up to uncovered, and from this, electric core 1 can be followed and held 4 tops of chamber and put into and hold chamber 4, and the dismouting of electric core 1 of being convenient for improves the convenience of follow-up maintenance or replacement. Further, the bottom of the accommodating cavity 4 is open to enhance heat dissipation, or the bottom of the accommodating cavity 4 may be provided with a bottom plate. The top of electric core subassembly still can set up the apron in order to realize electric core 1's Z to spacing.

With continued reference to fig. 1 and 2, according to a second aspect of the present invention, there is provided a battery pack, comprising a lower case 10 and a battery cell assembly according to any of the above aspects disposed on the lower case 10.

The utility model discloses a battery package provides a no module battery package through setting up above-mentioned electric core subassembly. When a single electric core 1 breaks down in the battery pack, the electric core 1 with the fault is taken out of the accommodating cavity 4 conveniently, and the accommodating cavity 4 is replaced after maintenance or replacement, so that the electric core 1 is convenient to disassemble and maintain. Through the design of individual spare parts such as cancellation copper bar and pencil, make sampling line and connecting piece integrated inside the box, reduced spare part administrative cost, and then reduced occupation space in to the battery package, effectively reduced because risk such as the too much extrusion interference wearing and tearing short circuit that causes of spare part in the electric core subassembly, power supply part integrated level is higher simultaneously, and the inside succinct safety that is more of whole battery package can effectively prolong the life of battery package.

In the present embodiment, the lower case 10 is integrally injection-molded with the case 3; or the box 3 may be detachably disposed on the lower housing 10, for example, the box 3 may be fixed on the lower housing 10 by bolts, or a limiting structure is disposed on the lower housing 10, so that the box 3 can be clamped on the lower housing 10.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric core assembly, characterized in that, the electric core assembly includes:

a plurality of cells (1), the cells (1) having poles (2); and

the battery box comprises a box body (3), wherein the box body (3) is internally provided with a plurality of accommodating cavities (4) for accommodating the battery cells (1), the inner walls of the accommodating cavities (4) are provided with connecting pieces (5) which can be contacted with the pole columns (2), any one of the connecting pieces (5) is arranged on the inner walls of the accommodating cavities (4) and can be connected with other connecting pieces (5) on the inner walls of the accommodating cavities (4), a sampling interface (6) is arranged on the box body (3), and the connecting pieces (5) are connected with the sampling interface (6) through sampling lines.

2. The electric core assembly according to claim 1, characterized in that said connecting member (5) is provided as a telescopic structure capable of protruding out of the plane of the inner wall of said housing cavity (4).

3. The electric core assembly according to claim 1, characterized in that a plurality of said containing cavities (4) are arranged in a matrix within said box (3), said containing cavities (4) having an interlayer (7) formed therebetween for arranging said sampling lines.

4. The battery pack assembly according to claim 1, wherein each accommodating cavity (4) is configured to accommodate one battery cell (1), and two adjacent accommodating cavities (4) are configured to share one connecting member (5).

5. The electric core assembly according to claim 1, characterized in that the box body (3) is provided with a positive output electrode (8) and a negative output electrode (9).

6. The electric core assembly according to claim 1, characterized in that more than two sampling interfaces (6) are provided on said box (3).

7. The cell assembly according to claim 1, wherein the post (2) comprises a positive post and a negative post oppositely disposed at two sides of the cell (1), and the inner walls of the accommodating cavity (4) corresponding to the positive post and the negative post are respectively provided with the connecting member (5).

8. The electric core assembly according to any one of claims 1 to 7, characterized in that the top of the accommodating cavity (4) is open, the bottom of the accommodating cavity (4) is open or the bottom of the accommodating cavity (4) is provided with a bottom plate.

9. A battery pack, characterized by comprising a lower case (10) and the electric core assembly of any one of claims 1 to 8 provided on the lower case (10).

10. The battery pack according to claim 9, wherein the lower case (10) is injection-molded integrally with the case (3); or

The box body (3) is detachably arranged on the lower shell (10).