CN207743287U - Battery modules - Google Patents
Battery modules Download PDFInfo
- Publication number
- CN207743287U CN207743287U CN201820164657.5U CN201820164657U CN207743287U CN 207743287 U CN207743287 U CN 207743287U CN 201820164657 U CN201820164657 U CN 201820164657U CN 207743287 U CN207743287 U CN 207743287U
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- Prior art keywords
- battery
- piece
- pole
- head cover
- connecting piece
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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
Abstract
This application involves energy storage device technical field more particularly to a kind of battery modules, including：Battery cell, including head cover and pole, the pole stretch out the head cover；Battery connecting piece is placed in above the head cover and is connect with the pole；Module output stage；Transition piece is connected to one side of the battery connecting piece far from the head cover, and is connect with the module output stage；With protection separator；The protection separator is set between the battery connecting piece and the head cover, the battery connecting piece and the battery cell is isolated.The battery modules of the application, when battery connecting piece and transition piece weld, protection separator can obstruct or absorb welding energy, transition piece, battery connecting piece is avoided to be merged with battery cell, and reduce welding energy and penetrate the damage that battery separator causes head cover, to improve the safety of battery cell and battery modules.
Description
Technical field
This application involves energy storage device technical field more particularly to a kind of battery modules.
Background technology
Battery modules include multiple battery cells, in order to which the electric current of battery cell is transmitted to outside battery modules, existing skill
In art, usually by the pole of battery cell together with the direct solder bond of module output stage, assemble for convenience, battery modules
It is additionally provided with battery connecting piece and transition piece, one end of battery connecting piece is connect with pole, the other end and transition piece
Connection, transition piece are connect with module output stage again.
Multiple battery cells are connected by battery connecting piece and/or are connected in parallel and to be formed, after by total battery output stage
To form battery modules.In the prior art, in the connection of battery cell and module output stage, usually by the pole of battery cell
Together with the direct solder bond of module output stage；Or in order to easy to assembly, set between battery cell and module output stage
It is equipped with transition piece, one end of battery connecting piece and the pole of battery cell connect, and the other end is connect with transition piece, is
The stability for ensureing output needs to make to be formed stronger connection between output stage and battery core pole, and in transition piece and electricity
When the connector welding of pond, the energy of welding easily penetrates battery connecting piece and causes to damage to the head cover of battery cell, causes battery
The problems such as seal failure of monomer or failure of insulation.
Utility model content
This application provides a kind of battery modules, can solve the above problems.
This application provides a kind of battery modules, including：
Battery cell, including head cover and pole, the pole stretch out the head cover；
Battery connecting piece is placed in above the head cover and is connect with the pole；
Module output stage；
Transition piece, is connected to one side of the battery connecting piece far from the head cover, and with the module output stage
Connection；With
Protect separator；
The protection separator is set between the battery connecting piece and the head cover, the battery connecting piece is isolated
With the battery cell.
Optionally, the protection separator is insulating heat shield, is connect with the transition with obstructing the battery connecting piece
The transmission for the welding energy that part welding generates.
Optionally, the protection separator is ceramic member.
Optionally, the protection separator is energy-absorbing protector, is connect with the transition with absorbing the battery connecting piece
The welding energy of part welding.
Optionally, the material of the protection separator is identical as the material of the transition piece.
Optionally, the protection separator is an integral structure with the transition piece.
Optionally, the transition piece includes module interconnecting piece and first connecting portion；The transition piece passes through institute
It states module interconnecting piece to connect with the module output stage, be connect with the battery connecting piece by the first connecting portion；
The protection separator is oppositely arranged and connect with the first connecting portion, and the battery connecting piece is placed in described
Between one interconnecting piece and the protection separator.
Optionally, the protection separator is connect with the first connecting portion in side of the two far from the pole.
Optionally, the module interconnecting piece is opposite with the side of the battery cell；
The transition piece further includes that bending interconnecting piece and insulating wrapped portion, the module interconnecting piece pass through the bending
Interconnecting piece is connect with the first connecting portion or the protection separator；The insulating wrapped portion coats the bending connection
Portion.
Optionally, the battery connecting piece includes pole interconnecting piece and second connecting portion, along the height of the battery cell
Direction, the pole interconnecting piece second connecting portion is far from the head cover；
The battery connecting piece is connect by the pole interconnecting piece with the pole, and the second connecting portion and institute are passed through
State transition piece connection；
The protection separator is set between the second connecting portion and the battery cell.
Technical solution provided by the present application can reach following advantageous effect：
Battery modules provided herein, the setting protection separator between head cover and battery connecting piece, electricity is isolated
Pond connector and head cover, when battery connecting piece and transition piece weld, protection separator can obstruct or absorb welding
Energy avoids transition piece, battery connecting piece from being merged with battery cell, and reduction welding energy penetrates battery separator and makes
At the damage of head cover, to improve the safety of battery cell and battery modules.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
Application.
Description of the drawings
Fig. 1 is a kind of explosive view of specific embodiment of battery modules provided herein；
Fig. 2 is a kind of partial structural diagram of specific embodiment of battery modules provided herein；
Fig. 3 is the explosive view of the embodiment of battery modules shown in Fig. 2；
Fig. 4 is the structural schematic diagram of transition piece in the embodiment of battery modules described in Fig. 2；
Fig. 5 is the partial structural diagram of another specific embodiment of battery modules provided herein；
Fig. 6 is the explosive view of the embodiment of battery modules shown in fig. 5；
Fig. 7 is in battery modules shown in fig. 6, and the explosion of battery connecting piece, transition piece and protection separator regards
Figure；
Fig. 8 is the structural schematic diagram of transition piece in the embodiment of battery modules shown in fig. 5；
Fig. 9 is the partial structural diagram of another specific embodiment of battery modules provided herein；
Figure 10 is the explosive view of the embodiment of battery modules shown in Fig. 9；
Figure 11 is in battery modules shown in Fig. 9, and the explosion of battery connecting piece, transition piece and protection separator regards
Figure；
Figure 12 is the structural schematic diagram of transition piece in the embodiment of battery modules shown in Fig. 9.
Reference numeral：
10- battery cells；
11- head covers；
12- poles；
20- battery connecting pieces；
21- pole interconnecting pieces；
22- second connecting portions；
23- samples interconnecting piece；
30- module output stages；
31- trunk portions；
32- flange parts；
40- transition pieces；
41- module interconnecting pieces；
42- first connecting portions；
43- insulating wrappeds portion；
50- protects separator；
51- ontologies；
52- protrusions；
60- sampling components；
61- side frames；
62- panels；
63- end plates；
64- cover boards；
65- sealing rings；
66- module output stage pedestals；
67- module output stage connectors；
68- insulating parts.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the application.
As shown in Fig. 1-Figure 12, the embodiment of the present application provides a kind of battery modules, including the connection of battery cell 10, battery
Part 20, module output stage 30, transition piece 40 and protection separator 50.Battery cell 10 includes head cover 11 and pole 12, pole
Column 12 stretches out head cover 11.Battery connecting piece 20 is placed in 11 top of head cover and is connect with pole 12.Transition piece 40 is connected to electricity
One side of the pond connector 20 far from head cover 11, and connect with module output stage 30, that is to say, that battery connecting piece 20 passes through transition
Connector 40 is connect with module output stage 30.Protection separator 50 is set between battery connecting piece 20 and head cover 11, with isolation
Battery connecting piece 20 and battery cell 10.
, using above-mentioned battery modules, by being arranged between head cover 11 and battery connecting piece 20 with barrier or absorbing
The protection separator 50 of energy, when being welded with transition piece 40 with solving battery connecting piece 20, worn since welding energy is excessively high
Saturating battery connecting piece 20 reaches battery cell 10, penetrates the head cover 11 of battery cell 10, causes to damage to head cover 11, or cause
Transition piece 40, battery connecting piece 20 are merged with head cover 11, to improve the safety of battery cell and entire battery modules
Property.
Battery modules, which are arranged side by side, has multiple battery cells 10, module output stage 30 to be set to outermost battery cell 10
Outside, in order to transfer out the electric current of each battery cell 10 in battery modules, therefore, described in the text is connect with transition
The battery connecting piece 20 that part 40 is connected is the battery connecting piece 20 being connected on one of them outermost battery cell 10.But
It should be noted that remaining battery cell 10 in battery modules can also be connected with battery connecting piece 20, in order to these electricity
The interconnection of pond monomer 10.
It is to be appreciated that battery modules further include side frame 61, panel 62, end plate 63, cover board 64 and sampling component 60, one
In kind embodiment, as shown in Figure 1,61 U-shaped structure of side frame, panel 62 are connected to the both ends of U-shaped structure, opened to be formed to have
The battery accommodating chamber of mouth, multiple battery cells 10 are arranged in battery accommodating chamber, and cover board 64 is covered on the opening of the accommodating chamber.End
Plate 63 is connected to the outside of panel 62, and sampling component 60 is set between cover board 64 and battery cell 10, passes through sampling component 60
The information for acquiring each battery cell 10, to be monitored to each battery cell 10.Module output stage 30 passes through panel 62, in order to
It is connect with the external world.
As shown in Fig. 2, Fig. 5, Fig. 9, in order to facilitate module output stage 30 connection and improve battery modules safety,
Battery modules further include sealing ring 65, module output stage pedestal 66 and module output stage connector 67, and sealing ring 65 is set to mould
Between group output stage 30 and panel 62, to ensure the leakproofness of battery modules.Module output stage pedestal 66 is connected to panel 62
Outside, module output stage connector 67 are connected to module output stage pedestal 66, and module output stage 30 is also cross panel 62, module
Output stage pedestal 66 and module output stage connector 67.
Battery cell 10 is formed substantially cube structure, and shown in Fig. 2, Fig. 5, Fig. 9, head cover 11 is set to
The top of battery cell 10, module output stage 30 are set to the outside of the side adjacent with top of battery cell 10.
Transition piece 40 includes module interconnecting piece 41 and first connecting portion 42, and as shown in Fig. 4, Fig. 8, Figure 12, transition connects
Fitting 40 is connect by module interconnecting piece 41 with module output stage 30, and transition piece 40 is connected by first connecting portion 42 and battery
Fitting 20 connects, in this way, first connecting portion 42 is opposite with the top of battery cell 10, module interconnecting piece 41 and battery cell 10
Side is opposite.
In a kind of embodiment, battery connecting piece 20 includes pole interconnecting piece 21 and second connecting portion 22, pole interconnecting piece 21
It can be connected with each other with second connecting portion 22, battery connecting piece 20 is connect by pole interconnecting piece 21 with pole 12, battery connection
Part 20 is connect by second connecting portion 22 with transition piece 40, when transition piece 40 includes first connecting portion 42, second
Interconnecting piece 22 is oppositely arranged and connect with first connecting portion 42, and in the embodiment, protection separator 50 is set to second connecting portion
Between 22 and head cover 11.Since pole 12 generally protrudes from head cover 11, it is therefore preferable that second connecting portion 22 and pole interconnecting piece 21
Be arranged to hierarchic structure, the i.e. short transverse along battery cell 10, pole interconnecting piece 21 compared with second connecting portion 22 far from head cover 11,
To when battery connecting piece 20 is connect with pole 12, pole interconnecting piece 21 be made to be overlapped on pole 12, ensure the two connection
Reliability；And this mode due to second connecting portion 22 it is closer apart from head cover 11, the region can be reduced to battery mould
The space hold of group, is conducive to the raising of battery modules energy density.
Optionally, battery connecting piece 20 further includes the sampling interconnecting piece being connect for the sampling component 60 with battery cell 10
23, the battery connecting piece 20 in the application increases sampling interconnecting piece 23, and sampling component 60 is made to pass through battery connecting piece 20 and pole
12 connections, and then sampling connector need not be separately provided using this structure in the information for acquiring battery cell 10, therefore, subtract
The amount of parts for having lacked battery modules saves the inner space of battery modules, can improve the energy density of battery modules.
In order to improve the space availability ratio of battery modules, second connecting portion 22 can be connected to pole with sampling interconnecting piece 23
The same side of interconnecting piece 21, and along the short transverse of secondary cell, second connecting portion 22 is higher than sampling interconnecting piece 23, with second
Interval is formed between interconnecting piece 22 and head cover 11, for accommodating protection separator 50, meanwhile, reduce the weldering of sampling interconnecting piece 23
The difference in height of junction and head cover 11 can facilitate sampling component 60 and sample the welding of interconnecting piece 23.
Above-mentioned pole interconnecting piece 21, second connecting portion 22, sampling interconnecting piece 23 and module interconnecting piece 41, first connect
Portion 42 is preferably laminated structure, and the two being connected is contacted using face, to increase the contact surface of pole 12 and battery connecting piece 20
Product, battery connecting piece 20 and the contact area of transition piece 40 and the contact surface of transition piece 40 and module output stage 30
Product improves the reliability that module output stage 30 is electrically connected with pole 12.
Wherein, protection separator 50 can be insulating heat shield, be welded with transition piece 40 with obstructing battery connecting piece 20
The transmission for raw welding energy of practicing midwifery.When transition piece 40 assembles, insulating heat shield is first placed on battery connecting piece 20
Between head cover 11, when second connecting portion 22 and the welding of first connecting portion 42, insulating heat shield can avoid battery connecting piece
20 contact with head cover 11, while completely cutting off welding heat when battery connecting piece 20 is welded with transition piece 40.When welding terminates
Afterwards, insulating heat shield can be ejected.
Insulating heat shield can be ceramic member, as in Figure 2-4, ceramic member be set to second connecting portion 22 and head cover 11 it
Between, since ceramic member has certain hardness, ceramic member can either completely cut off the welding heat that welding generates, and can be right
Second connecting portion 22 and the welding of first connecting portion 42 are played a supporting role；And since second connecting portion 22 is opposite with head cover 11
Face is generally planar, therefore, selects the insulating heat shield of laminated structure, can be convenient for the taking-up of insulating heat shield after welding.
Optionally, as shown in figure 3, protection separator 50 includes ontology 51 and is connected to the protrusion 52 of the side of ontology 51,
Ontology 51 is set between head cover 11 and battery connecting piece 20, and protrusion 52 protrudes from side of the ontology 51 far from head cover 11, and convex
It plays 52 to abut against with battery connecting piece 20, by the way that protrusion 52 is arranged, protection separator 50 can be prevented to be inserted into head cover 11 and battery
It is too deep between connector 20, to be easy to take out protection separator 50 after welding；It is anti-taking out and by the way that protrusion 52 is arranged
When protecting separator 50, protrusion 52 can be clamped, in order to operate.
Separator 50 or energy-absorbing protector are protected, to absorb battery connecting piece 20 and the welding of transition piece 40
Welding energy.As shown in Fig. 5-Figure 12, when first connecting portion 42 and second connecting portion 22 are welded, due to there is energy-absorbing protector to set
It is placed between head cover 11 and second connecting portion 22, therefore, the excess energy of welding can first be transferred to energy-absorbing protector, be prevented by energy-absorbing
Guard absorbs, in this way, welding energy will not be transferred to battery cell 10 substantially, to avoid welding energy to head cover 11 and whole
The damage of a battery cell 10；And after the completion of welding, if protection separator 50 is merged with battery connecting piece 20, it can not take out
Protect separator 50.
Optionally, energy-absorbing protector is connect with transition piece 40, since energy-absorbing protector is connect with transition piece 40,
Therefore, after the completion of battery connecting piece 20 and transition piece 40 weld, protection separator 50 is without taking out, to simplify dress
With process, the production efficiency of battery modules is improved.When protecting separator 50 to be connect with transition piece 40, separator 50 is protected
It is preferably an integral molding structure with transition piece 40, that is, protects separator 50 and transition piece 40 together machine-shaping, such as
It can be molded by bending mode.
Energy-absorbing protector can be metalwork, and the material of energy-absorbing protector, which is aluminium material etc., has the material of energy-absorbing function such as
Aluminium flake, the preferably material of energy-absorbing protector are identical as the material of transition piece 40, are especially connect with transition in energy-absorbing protector
When part 40 is an integral structure, the area of passage that pole 12 is transferred to module output stage 30 can be increased, improve the overcurrent at this
Ability.
Specifically, protection separator 50 can be oppositely arranged and connect with first connecting portion 42, protection separator 50 with
Accommodation space is formed between first connecting portion 42, battery connecting piece 20 is inserted into the accommodation space, that is, is placed in first connecting portion 42
Between protection separator 50, using this structure, when first connecting portion 42 and battery connecting piece 20 are welded, first connecting portion
42 can squeeze battery connecting piece 20 jointly with protection separator 50, be conducive to improve first connecting portion 42 and battery connecting piece 20
The reliability of welding.
It is inserted into above-mentioned accommodation space for the ease of battery connecting piece 20, in a kind of embodiment, protects separator 50 and first
Interconnecting piece 42 is connected in side of the two far from pole 12, as shown in Fig. 5, Fig. 6, Fig. 9, Figure 10, in the length of battery cell 10
Space is larger on direction, by protect the junction of separator 50 and first connecting portion 42 be arranged in the two far from pole 12 one
Side can insert protection separator 50 with transition piece 40 with battery connecting piece along above-mentioned length direction as a whole, from
And it is easy to operation.
Since module output stage 30 and battery connecting piece 20 are located at the outside of the side of battery cell 10) and top,
Therefore, module interconnecting piece 41 and first connecting portion 42 form bending connection, i.e., module interconnecting piece 41 directly with first connecting portion 42
Then connection protects separator 50 to be connected to first connecting portion 42, as shown in Figure 5-Figure 8；Or module interconnecting piece 41 with protection
Separator 50 forms bending connection, i.e. module interconnecting piece 41 is directly connected to protection separator 50, and then first connecting portion 42 connects
It is connected to protection separator 50, as shown in Fig. 9-Figure 12.
In order to facilitate connection, transition piece 40 further includes bending interconnecting piece (not shown), and module interconnecting piece 41 is logical
It crosses bending interconnecting piece to connect with first connecting portion 42 or protection separator 50, to form bending structure.
As previously described, due to battery cell 10 be cube structure, bending structure easily with battery cell 10
Seamed edge (side that top is crossed to form with side) contact, cause transition piece 40 and the head cover 11 of battery cell 10 to contact electricity
Connection, influences the safety of battery modules, and in order to solve this problem, transition piece 40 further includes insulating wrapped portion 43, insulation
The cladding bending interconnecting piece of covering portion 43.It is to be appreciated that when it is insulating heat shield to protect separator 50, transition piece 40
May include bending interconnecting piece and insulating wrapped portion 43, at this point, first connecting portion 42 is by bending interconnecting piece and module interconnecting piece
41 form bending structure, and the cladding of insulating wrapped portion 43 bends interconnecting piece, as shown in Figure 4.
In addition, module output stage 30 includes trunk portion 31 and is connected to the flange part 32 of one end of trunk portion 31, flange part
32 are located on the periphery of trunk portion 31, and trunk portion 31 passes through panel 62, module output stage pedestal 66 and module output stage connector
67；Flange part 32 is connected with transition piece 40, to increase the contact area of module output stage 30 and transition piece 40,
Improve the reliability of the two connection.Further, flange part 32 contacts electrical connection with panel 62 in order to prevent, and battery modules are also wrapped
Insulating part 68 is included, insulating part 68 is set between flange part 32 and panel 62.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of battery modules, which is characterized in that including：
Battery cell, including head cover and pole, the pole stretch out the head cover；
Battery connecting piece is placed in above the head cover and is connect with the pole；
Module output stage；
Transition piece is connected to one side of the battery connecting piece far from the head cover, and is connect with the module output stage；
With
Protect separator；
The protection separator is set between the battery connecting piece and the head cover, the battery connecting piece and institute is isolated
State battery cell.
2. battery modules according to claim 1, which is characterized in that the protection separator is insulating heat shield, with resistance
Every the transmission for the welding energy that the battery connecting piece and transition piece welding generate.
3. battery modules according to claim 2, which is characterized in that the protection separator is ceramic member.
4. battery modules according to claim 1, which is characterized in that the protection separator is energy-absorbing protector, to inhale
Receive the welding energy of the battery connecting piece and transition piece welding.
5. battery modules according to claim 4, which is characterized in that the material of the protection separator connects with the transition
The material of fitting is identical.
6. battery modules according to claim 4, which is characterized in that the protection separator is with the transition piece
Integral structure.
7. battery modules according to claim 6, which is characterized in that the transition piece includes module interconnecting piece and
One interconnecting piece；The transition piece is connect by the module interconnecting piece with the module output stage, is connected by described first
Socket part is connect with the battery connecting piece；
The protection separator is oppositely arranged and connect with the first connecting portion, and the battery connecting piece is placed in described first and connects
Between socket part and the protection separator.
8. battery modules according to claim 7, which is characterized in that the protection separator exists with the first connecting portion
Side connection of the two far from the pole.
9. battery modules according to claim 7, which is characterized in that the side of the module interconnecting piece and the battery cell
Portion is opposite；
The transition piece further includes that bending interconnecting piece and insulating wrapped portion, the module interconnecting piece are connected by the bending
Portion is connect with the first connecting portion or the protection separator；The insulating wrapped portion coats the bending interconnecting piece.
10. battery modules according to claim 1, which is characterized in that the battery connecting piece include pole interconnecting piece and
Second connecting portion, along the short transverse of the battery cell, the pole interconnecting piece second connecting portion is far from the top
Lid；
The battery connecting piece is connect by the pole interconnecting piece with the pole, and the second connecting portion and the mistake are passed through
Cross connector connection；
The protection separator is set between the second connecting portion and the battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820164657.5U CN207743287U (en) | 2018-01-31 | 2018-01-31 | Battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820164657.5U CN207743287U (en) | 2018-01-31 | 2018-01-31 | Battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207743287U true CN207743287U (en) | 2018-08-17 |
Family
ID=63124198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820164657.5U Active CN207743287U (en) | 2018-01-31 | 2018-01-31 | Battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207743287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635878A (en) * | 2021-01-19 | 2021-04-09 | 广东至力科技有限公司 | Miniature lithium ion battery with welding protection washer |
| CN113258220A (en) * | 2021-06-11 | 2021-08-13 | 厦门海辰新能源科技有限公司 | Battery switching piece integration, battery module and connection method of battery module |
-
2018
- 2018-01-31 CN CN201820164657.5U patent/CN207743287U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635878A (en) * | 2021-01-19 | 2021-04-09 | 广东至力科技有限公司 | Miniature lithium ion battery with welding protection washer |
| CN113258220A (en) * | 2021-06-11 | 2021-08-13 | 厦门海辰新能源科技有限公司 | Battery switching piece integration, battery module and connection method of battery module |
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