CN209730001U - A kind of battery module - Google Patents
A kind of battery module Download PDFInfo
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- CN209730001U CN209730001U CN201920546646.8U CN201920546646U CN209730001U CN 209730001 U CN209730001 U CN 209730001U CN 201920546646 U CN201920546646 U CN 201920546646U CN 209730001 U CN209730001 U CN 209730001U
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- connecting portion
- electrode terminal
- connector
- opening
- battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to energy storage device fields, a kind of battery module is provided, battery module includes: multiple battery cells and connector, and multiple battery cells arrange in one direction, each battery cell has electrode terminal, and electrode terminal includes first connecting portion and the first opening；Connector includes second connecting portion and third interconnecting piece, second connecting portion is inserted into the first opening of two adjacent battery cells, and third connecting portion is connect between the electrode terminal of two adjacent battery cells and respectively with the first connecting portion of two adjacent battery cells.The battery module can connection electrode terminal by connector, electrode terminal can be also set to be located at sustained height, the bonding strength and reliability of electrode terminal and connector is effectively ensured, the third interconnecting piece of connector can further improve the bonding strength and reliability of connector and electrode terminal.
Description
Technical field
The utility model relates to energy storage device fields, more particularly to a kind of battery module.
Background technique
In battery module production process, need by battery cell arrange in groups, electrode terminal electrical connection, battery module
Enter the processes such as shell.However since there is a certain error for the outer dimension of battery cell, so as to cause battery cell malalignment,
There are differences in height for electrode terminal, not only influence the stability maintenance of battery cell, have an effect on the connection of electrode terminal and connector
Intensity and reliability.And electrode terminal is usually to pass through laser to be welded with connector in the prior art, in welding
There are the risks of laser light leakage, to damage battery cell, reduce the yields of product.
Utility model content
For this reason, it may be necessary to a kind of battery module is provided, it is different for solving battery cell malalignment in existing battery module
The electrode terminal of battery cell influences battery cell and fixes and the technical issues of electrode terminal bonding strength there are difference in height.
To achieve the above object, the utility model provides a kind of battery module characterized by comprising
Multiple battery cells, the multiple battery cell arrange in one direction, and each battery cell has electrode
Terminal, the electrode terminal include first connecting portion and the first opening；And
Connector, the connector include second connecting portion and third interconnecting piece, the second connecting portion insertion at least phase
First opening of two adjacent battery cells, the third connecting portion is described in two adjacent battery cells
It is connect between electrode terminal and respectively with the first connecting portion of two adjacent battery cells.
Further, the third interconnecting piece and opposed facing two sides of the electrode terminal are respectively arranged with second
Opening, the first connecting portion are inserted into second opening.
Further, the battery cell includes two electrode terminals, and two electrode terminals are located at the electricity
Two sides at the top of the monomer of pond, and first opening of two electrode terminals faces each other.
Further, the thickness of the second connecting portion is equal to the thickness of first opening, the first connecting portion
Thickness is equal to the thickness of second opening.
Further, the first connecting portion is welded and fixed or the first connecting portion and institute with the second connecting portion
Third interconnecting piece is stated to be welded and fixed.
Further, the thickness of the second connecting portion is greater than the thickness of the first connecting portion.
Further, the connector is metal material and is an integral molding structure.
Further, the second connecting portion is plate-like structure, and the quadrangle of the second connecting portion is arc angling.
Further, the secondary cell of the battery cell.
It is different from the prior art, above-mentioned technical proposal battery module includes multiple battery cells and connector, battery cell
Electrode terminal on be provided with the first opening, the first opening of the second connecting portion of connector and two adjacent battery cells connects
It connects, therefore not only realizes being electrically connected for electrode terminal and connector, so that electrode terminal is located at sustained height, electricity is effectively ensured
The bonding strength and reliability of extreme son and connector, and the third connection of connector be located at two adjacent battery cells it
Between and connect respectively with the first connecting portion of electrode terminal, thus further increase the bonding strength of connector and electrode terminal with
Reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of battery module described in specific embodiment；
Fig. 2 is the structural schematic diagram of battery cell described in specific embodiment；
Fig. 3 is the structural schematic diagram of connector described in specific embodiment；
Fig. 4 is the partial enlarged view of part A in Fig. 1；
Fig. 5 is the partial enlarged view of part B in Fig. 2；
Fig. 6 be in Fig. 1 electrode terminal and connector along C-C to sectional view；
Description of symbols:
1, battery cell；
1a, the first battery cell；
1b, the second battery cell；
11, electrode terminal；
111, the first opening；
112, first connecting portion；
12, shell；
2, connector；
21, second connecting portion；
211, chamfering；
22, third interconnecting piece；
221, protrusion；
23, the second opening；
The thickness of h1, second connecting portion；
The thickness of h2, first connecting portion；
The thickness of h3, third interconnecting piece.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
It should be noted that in the description of the present application unless specifically defined or limited otherwise, term " first ", " the
Two ", it is only used for the purpose of description, is not understood to indicate or imply relative importance；Unless otherwise prescribed or illustrate, term
" multiple " refer to two or more；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " can be fixed company
It connects, may be a detachable connection, or be integrally connected, or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected.For the ordinary skill in the art, it can understand as the case may be above-mentioned term in the present invention
Concrete meaning.
In the description of this specification, it is to be understood that "upper", "lower" described in the embodiment of the present application, "left", "right"
The equal nouns of locality are described with angle shown in the drawings, should not be construed as the restriction to the embodiment of the present application.In addition, In
In context, it is also necessary to which understanding can not only when mentioning an element and being connected to another element "upper" or "lower"
It is enough connected directly between another element "upper" or "lower", another element "upper" can also be indirectly coupled to by intermediary element
Or "lower".
Fig. 1 to Fig. 6 is please referred to, a kind of battery module is present embodiments provided.As shown in Figure 1, being the structure of battery module
Schematic diagram, battery module include multiple battery cells 1 and multiple connectors 2.Wherein, multiple battery cells 1 are in the horizontal direction
(i.e. direction shown by arrow X in figure) is arranged successively setting, and there are two electrode terminals 11 for each tool of battery cell 1, and at least
The electrode terminal 11 of two neighboring battery cell 1 is connected by connector 2.As shown in Fig. 2, Fig. 2 is the part of part A in Fig. 1
Enlarged drawing, wherein the electrode terminal 11 of adjacent the first battery cell 1a and the second battery cell 1b are mutually connected by connector 2
It connects.
As shown in figure 3, Fig. 3 is the structural schematic diagram of specific embodiment battery cell 1.Battery cell 1 can be that can weigh
Charge the secondary cell used again, and wherein secondary cell can be in ternary lithium battery, ferric phosphate lithium cell or lithium manganate battery
Any one.The substantially hexahedron structure of battery cell 1, there are two electrode terminal 11, two electrodes for each tool of battery cell 1
Terminal 11 is set to the two sides at 1 top of battery cell, and one of electrode terminal 11 is positive terminal, and another electrode terminal 11 is
Negative terminal, battery cell 1 can realize serial or parallel connection by connector 2.When the positive terminal and cathode of adjacent cell monomer 1
, it can be achieved that multiple battery cells 1 are serially connected (as shown in Fig. 2, as multiple battery cells 1 when terminal is connected by connector 2
It is serially connected)；It is connected with each other when the positive terminal of multiple battery cells 1 passes through connector 2, and negative terminal passes through another connection
When part 2 connects, it is parallel with one another that multiple battery cells 1 can be realized.Certainly, in further embodiments, multiple battery cells 1
Mixed connection can be realized by connector 2.
As shown in figure 4, Fig. 4 is the partial enlarged view of part B (i.e. electrode terminal 11) in Fig. 3.Electrode terminal 11 can be by
The metal materials such as aluminium or copper are made, and electrode terminal 11 includes first connecting portion 112 and the first opening 111.Wherein, the first opening
111 from the side of electrode terminal 11 to the internal stretch of electrode terminal 11, and electrode terminal 11 is roughly divided into two by the first opening 111
Part is boundary with the first opening 111, wherein being electrode terminal main part close to 1 shell 12 of battery cell, far from battery list
1 shell of body is first connecting portion 112.
As depicted in figs. 1 and 2, wherein the first opening 111 of at least two neighboring battery cell 1 is generally aligned in the same plane.In
Electrode terminal 11 can be different contour structures in different embodiments, as shown in figure 4, in the present embodiment, electrode terminal
11 be substantially block structure, in other embodiments, electrode terminal 11 or column structure, the first opening 111 by
Internal stretch of the side of electrode terminal 11 to electrode terminal 11.Wherein, the first opening 111 can be processed by wire cutting technology
It forms, certainly, in further embodiments, entire electrode terminal 11 can pass through die cast metal technique or casting of metals one-pass molding
It is made.
As shown in figure 5, Fig. 5 is the structural schematic diagram of specific embodiment connector 2.Connector 2 can be closed by aluminium, aluminium
The metal materials such as gold, copper, copper alloy are made, and connector 2 includes second connecting portion 21 and third interconnecting piece 23.In conjunction with Fig. 2 it is found that
The first opening 111 of adjacent the first battery cell 1a and the second battery cell 1b is located at same level, second connecting portion 21
It is inserted into the first opening 111 of adjacent the first battery cell 1a and the second battery cell 1b and is connected with the first opening 111,
Third interconnecting piece 22 is located between the electrode terminal 11 of adjacent the first battery cell 1a and the second battery cell 1b, and third
Interconnecting piece 22 is connect with the first connecting portion 112 of the first battery cell 1a and the second battery cell 1b respectively.
As shown in Figure 2, the first opening 111 of setting on the electrode terminal 11 of battery cell 1, and pass through connector 2 the
Two interconnecting pieces 21 are inserted into the first opening 111, are not only realized being electrically connected for electrode terminal 11 and connector 2, are also made battery list
The electrode terminal 11 of body 1 is located at sustained height, avoids caused by 1 dimensional discrepancy of battery cell the height of electrode tip 11 not
One, the bonding strength and reliability of electrode terminal 11 Yu connector 2 is effectively ensured, and the third connection 22 of connector 2 is located at
It connect between two adjacent battery cells 1 and with the first connecting portion of electrode terminal 112 respectively, makes connector 2 and electrode tip
1 connection of son is closer, to further increase the bonding strength and reliability of connector 2 Yu electrode terminal 11.Also, in this reality
It applies in example, each battery cell 1 is connected with each other by connector 2, is removed when forming a complete module, therefore facilitating subsequent assembly
It transports and fixed.
As shown in figure 3, battery cell 1 includes two electrode terminals 11, two electrode terminals 11 are located at the battery cell 1
The two sides at top, also, the first opening 111 of two electrode terminals 11 faces each other, i.e., and the first of two electrode terminals 11 opens
Mouth 111 is respectively positioned on inside.It by Fig. 1 and Fig. 2 it is found that when connector 2 is connect with electrode terminal 11, is inserted into from interior lateral edge Y-direction
First opening 111, also, 2 part of connector is connect with electrode terminal 11, and the part not connecting with electrode terminal is then located at electrode
11 inside of terminal, to keep the volume of entire battery module more compact.
When being inserted into the first opening 111 of electrode terminal 11 in view of the second connecting portion 21 of connector 2, second connecting portion
21 easily scratch the first 111 inner walls of opening, as shown in figure 5, in embodiment, the second connecting portion 21 of connector 2 is tabular knot
Structure, and the quadrangle of second connecting portion 21 is arc angling 211.The embodiment sets arc for the quadrangle of second connecting portion 21 and falls
Angle 211 can reduce or the quadrangle of second connecting portion 21 is avoided to scratch the first 111 inner walls of opening, and second connects when assembling connector 2
Socket part 21 is easier to be inserted into the first opening 111.
As shown in figures 2 and 5, the third interconnecting piece 22 of connector 2 and 11 opposed facing two sides of electrode terminal point
It is not provided with the second opening 23, the protrusion 221 protruded to electrode terminal 11 is provided at the top of 22 two sides of third interconnecting piece, because
The vertical direction section of this entire connector 2 is located at 22 two sides of third interconnecting piece in I-shaped structure short in lower length
Electrode terminal 11 the second opening 23 of 112 edge of first connecting portion insertion in 23 connect with the second opening.Wherein, protrusion
221 form the second opening 23, the extending direction of the second opening 23 and the first opening on electrode terminal 11 with second connecting portion 21
111 extending direction is parallel to each other (i.e. arrow Y-direction extends along figure).When connector 2 is connect with electrode terminal, connection
The second connecting portion 21 of part 2 is aligned with the first opening 111 of electrode terminal 11, and the first connecting portion 112 of electrode terminal 11
It is aligned with the second opening 23 on connector 2, and will be in first opening 111 of the insertion of connector 2 along Y-direction.
As shown in fig. 6, for electrode terminal 11 in Fig. 1 and connector 2 along C-C to sectional view.Wherein, the of connector 2
The thickness h 1 of two interconnecting pieces 21 is equal to the thickness of the first opening 111 of electrode terminal 11, the first connecting portion 112 of electrode terminal 11
Thickness h 2 be equal to second opening 23 thickness.Therefore, second connecting portion 21 and the first opening 111 can be made to be fitted close, the
One interconnecting piece 112 and the second opening 23 are fitted close, and can both increase the connection area of connector 2 Yu electrode terminal 11 in this way,
Electric conductivity is improved, while the bonding strength of connector 2 Yu electrode terminal 11 also can be improved.
Further, it is contemplated that the connective stability between connector 2 and electrode terminal 11, in embodiment, connector 2
It can be also welded and fixed by Laser Welding, supersonic welding etc. between electrode terminal 11, connector 2 and electricity can be made by welding
Extreme son 11 is firmly fixed together.Specifically, as shown in Fig. 2, welding when, can be along arrow X-direction, by electrode terminal
11 first connecting portion 112 is welded and fixed with the second connecting portion 21 of connector 2；Or in further embodiments, Ke Yiyan
It is solid that the first connecting portion 112 of electrode terminal 11 is connect the welding of the protrusion 221 on 22 by arrow Y-direction with the third of connector 2
It is fixed.When due to being welded, welding operation is carried out in 21 or more the second connecting portion of connector 2, therefore can prevent from connecting
Part 2 or electrode terminal are destroyed battery cell 1 by burn-through, when especially with Laser Welding, laser irradiation can be prevented in battery list
On body 1, to improve the quality product rate of battery module.
As shown in Figure 6, it is preferred that the thickness h 1 of the second connecting portion 21 of connector 2 is greater than the first company of electrode terminal 11
The thickness h 1 of socket part 112, and the thickness h 1 of second connecting portion 21 can guarantee in this way also greater than the thickness h 3 of protrusion 221
The structural strength of connector 2 prevents 2 torsional deformation of connector, while is reduced by second when connector 2 is welded with electrode terminal 11 again
Interconnecting piece 21 is by the risk of burn-through.
Claims (9)
1. a kind of battery module characterized by comprising
Multiple battery cells, the multiple battery cell arrange in one direction, and each battery cell has electrode terminal,
The electrode terminal includes first connecting portion and the first opening；And
Connector, the connector include second connecting portion and third interconnecting piece, and the second connecting portion insertion is at least adjacent
First opening of two battery cells, the third connecting portion is in the electrode of two adjacent battery cells
It is connect between terminal and respectively with the first connecting portion of two adjacent battery cells.
2. battery module according to claim 1, which is characterized in that the third interconnecting piece and the electrode terminal are mutual
Two sides faced are respectively arranged with the second opening, and the first connecting portion is inserted into second opening.
3. battery module according to claim 1, which is characterized in that the battery cell includes two electrode tips
Son, two electrode terminals are located at the two sides at the top of the battery cell, and described the first of two electrode terminals opens
Mouth faces each other.
4. battery module according to claim 2, which is characterized in that the thickness of the second connecting portion is equal to described first
The thickness of opening, the thickness of the first connecting portion are equal to the thickness of second opening.
5. battery module according to claim 1, which is characterized in that the first connecting portion and the second connecting portion are welded
Fixation or the first connecting portion is connect to be welded and fixed with the third interconnecting piece.
6. battery module according to claim 1, which is characterized in that the thickness of the second connecting portion is greater than described first
The thickness of interconnecting piece.
7. battery module according to claim 1, which is characterized in that the connector is metal material and is integrally formed
Structure.
8. battery module according to claim 1, which is characterized in that the second connecting portion is plate-like structure, and institute
The quadrangle for stating second connecting portion is arc angling.
9. battery module according to claim 1, which is characterized in that the secondary cell of the battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546646.8U CN209730001U (en) | 2019-04-22 | 2019-04-22 | A kind of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546646.8U CN209730001U (en) | 2019-04-22 | 2019-04-22 | A kind of battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209730001U true CN209730001U (en) | 2019-12-03 |
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ID=68672884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920546646.8U Active CN209730001U (en) | 2019-04-22 | 2019-04-22 | A kind of battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209730001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156606A (en) * | 2020-08-18 | 2022-03-08 | 恒大新能源技术(深圳)有限公司 | Battery assembly and lithium ion battery |
-
2019
- 2019-04-22 CN CN201920546646.8U patent/CN209730001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156606A (en) * | 2020-08-18 | 2022-03-08 | 恒大新能源技术(深圳)有限公司 | Battery assembly and lithium ion battery |
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