CN208862100U - A kind of cylindrical battery - Google Patents
A kind of cylindrical battery Download PDFInfo
- Publication number
- CN208862100U CN208862100U CN201821518381.2U CN201821518381U CN208862100U CN 208862100 U CN208862100 U CN 208862100U CN 201821518381 U CN201821518381 U CN 201821518381U CN 208862100 U CN208862100 U CN 208862100U
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- CN
- China
- Prior art keywords
- accommodating chamber
- circuit board
- battery
- battery case
- battery core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to technical field of secondary batteries, more particularly to a kind of cylindrical battery, including battery case, battery core, circuit board and insulating washer, battery core and circuit board are electrically connected, battery core, circuit board and insulating washer are successively assembled in battery case, battery case inner wall is formed with accommodating chamber and lower accommodating chamber, limited step is formed between upper accommodating chamber and lower accommodating chamber, and the internal diameter of upper accommodating chamber is greater than the internal diameter of lower accommodating chamber, battery core is placed in lower accommodating chamber, and circuit board and insulating washer are successively pressed and be installed in accommodating chamber.Compared with the prior art, the utility model is by being arranged limited step in battery case inner wall, to play the purpose for limiting components in upper accommodating chamber, the components in accommodating chamber are avoided to squeeze the battery core in lower accommodating chamber, so that the installation reliability of components greatly improves in battery case, and eliminates existing slot rolling design, production process can be saved, production cost is reduced, production efficiency is improved.
Description
Technical field
The utility model belongs to technical field of secondary batteries more particularly to a kind of cylindrical battery.
Background technique
With the fast development of new energy and demand of the people to clean and effective renewable resource, countries in the world government all will
New Energy Industry is classified as emphasis and encourages to help object, and new-energy automobile was even more to enter high-speed development period at nearly 2 years, with electric energy generation
For fuel oil driving welfare will be brought for social sustainable development and human ecological environment.And lithium-ion-power cell is because having energy
Metric density height, the advantages that fast charging and discharging, having extended cycle life, have a safety feature, is environmentally friendly, are in new-energy automobile field
It has a wide range of applications.
Wherein, cylindrical battery is stacked gradually by anode pole piece, diaphragm, cathode pole piece and is housed in steel shell after being rolled into battery core
In, after battery core soldered circuit board, finally covers nut cap and be made.Since battery is in transport or placement process, it is easy to happen and trembles
It moves, jolt, battery core can be made to shake, fall off, weld loosening etc., and then its service life and performance is influenced, and therefore, battery core and circuit
Plate is particularly critical in the fixation of inside battery.As shown in Figure 1, currently, cylindrical battery be all fixed by slot rolling 2 ' battery core and
Circuit board needs that soft pack cell is first put into steel shell 1 ', then carry out slot rolling 2 ' to steel shell 1 ' and suppress, then carry out circuit board weldering
It connects, but this mode difficulty of processing is big, step is various, and more demanding, substantially reduces production efficiency.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and provide that a kind of structure is simple, packaging efficiency
High, high reliablity cylindrical battery.
To achieve the goals above, the utility model uses following technical scheme:
A kind of cylindrical battery, including battery case, battery core, circuit board and insulating washer, the battery core and the circuit board
It is electrically connected, the battery core, the circuit board and the insulating washer are successively assembled in the battery case, the battery case
Internal wall is formed with accommodating chamber and lower accommodating chamber, is formed with limited step between the upper accommodating chamber and the lower accommodating chamber,
And the internal diameter of the upper accommodating chamber is greater than the internal diameter of the lower accommodating chamber, the battery core is placed in the lower accommodating chamber, the electricity
Road plate and the insulating washer, which successively press, to be installed in the upper accommodating chamber.
As the preferred embodiment of cylindrical battery described in the utility model, the battery case one end bends inwards extension
It is formed with defining flange, forms the upper receiving between the defining flange, the limited step and the battery case inner wall
Chamber.
As the preferred embodiment of cylindrical battery described in the utility model, the battery further includes electrode end cap, the electricity
Extreme lid is fixed on the circuit board upper surface by welding.
As the preferred embodiment of cylindrical battery described in the utility model, the insulating washer includes the first washer and from institute
State along axial raised second packing ring on the axial end face of the first washer, first washer be located at the circuit board upper surface and
Between the defining flange, the second packing ring is coated on the outer peripheral surface of the electrode end cap.
As the preferred embodiment of cylindrical battery described in the utility model, the internal diameter of the lower accommodating chamber is greater than the battery core
Outer diameter, the outer diameter of the circuit board is greater than the internal diameter of the lower accommodating chamber and is less than the internal diameter of the upper accommodating chamber.
As the preferred embodiment of cylindrical battery described in the utility model, the upper accommodating chamber height, which is equal to, is assemblied in battery
The sum of the intracorporal circuit board of shell and insulating washer height.
As the preferred embodiment of cylindrical battery described in the utility model, the height of the lower accommodating chamber is greater than or equal to dress
Fit over the height of the intracorporal battery core of battery case.
As the preferred embodiment of cylindrical battery described in the utility model, the battery case is the circumferential steel without slot rolling
Shell.
The utility model has the beneficial effects that: a kind of cylindrical battery of the utility model, including battery case, battery core, electricity
Road plate and insulating washer, the battery core and the circuit board are electrically connected, the battery core, the circuit board and the insulating washer
It is successively assembled in the battery case, the battery case inner wall is formed with accommodating chamber and lower accommodating chamber, the upper receiving
Limited step is formed between chamber and the lower accommodating chamber, and the internal diameter of the upper accommodating chamber is greater than the interior of the lower accommodating chamber
Diameter, the battery core are placed in the lower accommodating chamber, and the circuit board and the insulating washer successively press and be installed in the upper receipts
In cavity.Compared with the prior art, the utility model is by being arranged limited step in battery case inner wall, to play in limit
The purpose of the components such as accommodating chamber interior circuit board and insulating washer avoids the components in accommodating chamber from squeezing in lower accommodating chamber
Battery core so that the installation reliability of components greatly improves in battery case, and eliminates existing slot rolling design, Neng Goujie
Production process is saved, production cost is reduced, improves production efficiency.
Detailed description of the invention
Fig. 1 is the steel shell for having slot rolling in the prior art.
Fig. 2 is the cross-sectional view of the utility model.
Fig. 3 is the exploded view of the utility model.
Fig. 4 is the structural schematic diagram of battery case in the utility model.
Fig. 5 is the cross-sectional view of battery case in the utility model.
Fig. 6 is the partial enlarged view of part B in Fig. 5.
In figure: 1 '-steel shell；2 '-slot rollings；1- battery case；The upper accommodating chamber of 11-；111- limited step；112- limit convex
Edge；Accommodating chamber under 12-；2- battery core；3- circuit board；4- insulating washer；The first washer of 41-；42- second packing ring；5- electrode end cap.
Specific embodiment
To keep the technical solution of the utility model and advantage clearer, below in conjunction with specific embodiment and specification
Attached drawing is described in further detail the utility model and its advantages, but the embodiments of the present invention is not limited to
This.
As figures 2-6, a kind of cylindrical battery, including battery case 1, battery core 2, circuit board 3 and insulating washer 4, battery core
2 are electrically connected with circuit board 3, and battery core 2, circuit board 3 and insulating washer 4 are successively assembled in battery case 1；Wherein, battery case
Body 1 is steel shell of the outer circumferential direction without slot rolling, and 1 inner wall of battery case is formed with accommodating chamber 11 and lower accommodating chamber 12, upper accommodating chamber 11
Limited step 111 is formed between lower accommodating chamber 12, limited step 111 can be formed by way of punching press, upper accommodating chamber
11 internal diameter is greater than the internal diameter of lower accommodating chamber 12, and the internal diameter of lower accommodating chamber 12 is greater than the outer diameter of battery core 2, the outer diameter of circuit board 3
Internal diameter greater than lower accommodating chamber 12 and the internal diameter less than upper accommodating chamber 11；1 one end of battery case, which bends inwards, have been extended to form
Defining flange 112 forms upper accommodating chamber 11 between 1 inner wall of defining flange 112, limited step 111 and battery case.
Wherein, battery core 2 is placed in lower accommodating chamber 12, and circuit board 3 and insulating washer 4 successively press and be installed in accommodating chamber 11
It is interior；And upper 11 height of accommodating chamber is equal to the sum of 4 height of the circuit board 3 being assemblied in battery case 1 and insulating washer；Lower accommodating chamber
12 height is greater than or equal to the height for the battery core 2 being assemblied in battery case 1.
Compared with the prior art, the utility model is by being arranged limited step 111 in 1 inner wall of battery case, to play
The purpose of the components such as 11 interior circuit board 3 of accommodating chamber and insulating washer 4, avoids the components in accommodating chamber 11 on longitudinal spacing
The battery core 2 in lower accommodating chamber 12 is squeezed, so that the installation reliability of components greatly improves in battery case 1, and is eliminated
Existing slot rolling design, can save production process, reduce production cost, improve production efficiency.
In an embodiment of cylindrical battery according to the present utility model, which further includes electrode end cap 5, electrode
End cap 5 is fixed on 3 upper surface of circuit board by welding.
In an embodiment of cylindrical battery according to the present utility model, insulating washer 4 includes the first washer 41 and from the
Along axial raised second packing ring 42 on the axial end face of one washer 41, the first washer 41 is located at 3 upper surface of circuit board and limit
Between flange 112, second packing ring 42 is coated on the outer peripheral surface of electrode end cap 5.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all this field skills
It is practical new that art personnel any conspicuous improvement made on the basis of the utility model, replacement or modification belong to this
The protection scope of type.In addition, these terms are intended merely to facilitate although using some specific terms in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (8)
1. a kind of cylindrical battery, including battery case, battery core, circuit board and insulating washer, the battery core and circuit board electricity
Property connection, the battery core, the circuit board and the insulating washer are successively assembled in the battery case, it is characterised in that:
The battery case inner wall is formed with accommodating chamber and lower accommodating chamber, is formed between the upper accommodating chamber and the lower accommodating chamber
Limited step, and the internal diameter of the upper accommodating chamber is greater than the internal diameter of the lower accommodating chamber, the battery core is placed in the lower accommodating chamber
Interior, the circuit board and the insulating washer are successively pressed and are installed in the upper accommodating chamber.
2. cylindrical battery according to claim 1, it is characterised in that: the battery case one end, which bends inwards, extends shape
At there is defining flange, the upper accommodating chamber is formed between the defining flange, the limited step and the battery case inner wall.
3. cylindrical battery according to claim 2, it is characterised in that: the battery further includes electrode end cap, the electrode
End cap is fixed on the circuit board upper surface by welding.
4. cylindrical battery according to claim 3, it is characterised in that: the insulating washer includes the first washer and from described
Along axial raised second packing ring on the axial end face of first washer, first washer is located at the circuit board upper surface and institute
It states between defining flange, the second packing ring is coated on the outer peripheral surface of the electrode end cap.
5. cylindrical battery according to claim 1, it is characterised in that: the internal diameter of the lower accommodating chamber is greater than the battery core
Outer diameter, the outer diameter of the circuit board are greater than the internal diameter of the lower accommodating chamber and are less than the internal diameter of the upper accommodating chamber.
6. cylindrical battery according to claim 1, it is characterised in that: the upper accommodating chamber height, which is equal to, is assemblied in battery case
The sum of intracorporal circuit board and insulating washer height.
7. cylindrical battery according to claim 1, it is characterised in that: the height of the lower accommodating chamber is greater than or equal to assembly
In the height of the intracorporal battery core of battery case.
8. cylindrical battery according to claim 1, it is characterised in that: the battery case is the circumferential steel shell without slot rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821518381.2U CN208862100U (en) | 2018-09-14 | 2018-09-14 | A kind of cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821518381.2U CN208862100U (en) | 2018-09-14 | 2018-09-14 | A kind of cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208862100U true CN208862100U (en) | 2019-05-14 |
Family
ID=66418120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821518381.2U Active CN208862100U (en) | 2018-09-14 | 2018-09-14 | A kind of cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208862100U (en) |
-
2018
- 2018-09-14 CN CN201821518381.2U patent/CN208862100U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |