CN110116471A - Cover plate of power battery and its manufacturing method - Google Patents
Cover plate of power battery and its manufacturing method Download PDFInfo
- Publication number
- CN110116471A CN110116471A CN201810118951.7A CN201810118951A CN110116471A CN 110116471 A CN110116471 A CN 110116471A CN 201810118951 A CN201810118951 A CN 201810118951A CN 110116471 A CN110116471 A CN 110116471A
- Authority
- CN
- China
- Prior art keywords
- substrate
- electrode column
- power battery
- cover plate
- perforation
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
-
- 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
The present invention discloses a kind of cover plate of power battery and its manufacturing method, the cover plate of power battery includes a substrate, two electrode columns and two sealants, the substrate is equipped at intervals with two perforation, two electrode column is pierced by a wherein perforation respectively, it is processed again by injection molding, a sealant is respectively set between the substrate and two electrode column, corresponding perforation and the part of the substrate of corresponding groove vicinity are coated by each sealant, substrate can be made closely to be connected with each other with two electrode column, and when the cover plate of power battery is combined with a shell, gas and liquid further can be effectively blocked two to perforate by this, it is various to be efficiently modified existing cover plate of power battery part, assembling is complicated, and the shortcomings that gas passes through with liquid can not be blocked completely, it uses and a kind of cover plate of power battery and its manufacturing method is provided.
Description
Technical field
The present invention relates to a kind of cover plate of power battery and its manufacturing methods more particularly to a kind of without going through complicated group
Dress, so that it may reach the cover plate of power battery of preferable sealing effect.
Background technique
As environmental consciousness promotes the arrival with energy revolution, electric vehicle gradually flourishes, and has also driven market to dynamic
The demand of power battery, power battery are become with its high capacity and the characteristic of high energy source density for the electricity in requisition for a large amount of electric power
The mainstream technology of device product power supply, and be widely used in the various products such as electric vehicle, dust catcher.
Existing power battery includes a shell, a battery core module and a cover board, and wherein the shell has an opening, the electricity
Core module is set to the inside of the shell, which combines with the shell and close the opening, by the connection of the cover board, the electricity
Core module can be electrically connected with external electronic component, use supply electric power.
It please refers to as shown in figure 8, the cover board of existing power battery includes a substrate 60 and two electrode columns 70, the substrate 60
Two perforation 601 are equipped at intervals with, which is respectively an anode electrode column and a negative electricity pole, two electrode column 70
And a retainer plate 61 and a sealing element 62 are sequentially passed through respectively, and it is convex across corresponding perforation 601 from the bottom surface of the substrate 60
It for the top surface of the substrate 60, then by two snap close pieces 63, is engaged with two electrode column 70 sets combination respectively, by two electrode column
70 are fixed on the substrate 60, that is, complete the assembling of existing cover plate of power battery.
However, though existing cover plate of power battery is by two retainer plate 61, two sealing element 62 and two snap close piece 63,
Two electrode column 70 and the substrate 60 can be combined closely, but part is various and each part between still there is gap, be easy to lead
Cause gas and liquid still may via the gap between two electrode column 70 and the substrate 60, into the power battery shell or
It is oozed out from the shell, the problems such as aoxidizing, corroding occurs for the electronic component of the battery core module or outside that cause the power battery, comprehensive
Upper described, existing cover plate of power battery has the shortcomings that assembling complexity and there are still gap, and improved place need to be subject to by truly having.
Summary of the invention
In order to solve the disadvantage that existing cover plate of power battery has assembling complicated and there are still gap, present invention offers one
Kind cover plate of power battery and its manufacturing method, are processed by injection molding, are respectively set one between a substrate and two electrode columns
Sealant connect the substrate can closely with two electrode column, and can effectively block gas and liquid by the substrate, further
It is described as follows.
The present invention provides a kind of manufacturing method of cover plate of power battery, it is characterised in that including operating procedure below:
Prepare material: preparing a substrate and two electrode columns, wherein the substrate is equipped at intervals with two perforation, two electrode column point
It is not an anode electrode column and a negative electricity pole, and two electrode column can be pierced by a wherein perforation respectively；And
Injection molding: two electrode column is pierced by a wherein perforation respectively, and is inserted in a mold, is processed by injection molding
Afterwards, it is respectively formed a sealant between the substrate and two electrode column, which is respectively interposed in a wherein electrode column and phase
Between corresponding perforation, uses respectively in connection with the substrate and corresponding electrode column, the finished product of the cover plate of power battery can be obtained.
The manufacturing method of above-mentioned cover plate of power battery, it is characterised in that in the operating procedure of the injection molded, from the base
A surface on plate around two perforation opens up two grooves, and two groove is made to be surrounded on the outer peripheral edge of a wherein perforation respectively.
Further, the manufacturing method of above-mentioned cover plate of power battery, it is characterised in that in the operating procedure for preparing material, in
The both ends of each electrode column are respectively formed an external terminal and an internal terminal.
Further, the manufacturing method of above-mentioned cover plate of power battery, it is characterised in that in the operating procedure of the preparation material,
The internal terminal of each electrode column is formed into a rectangular sheet, covers the outer profile of the internal terminal beyond corresponding perforation
Range.
It is preferred that the manufacturing method of above-mentioned cover plate of power battery, it is characterised in that in the operating procedure of the preparation material
In, it protrudes to form a protrusion close to one end annular of the external terminal in each electrode column.
The present invention provides a kind of cover plate of power battery, combines with a shell of a power battery, it is characterised in that packet
Include a substrate, two electrode columns and two sealants, in which:
The substrate is equipped with two perforation, which is disposed through on the substrate；
Two electrode column is connected with the substrate respectively, which is pierced by a wherein perforation respectively, and protrudes from this
The top surface and bottom surface of substrate；And
With the substrate and wherein an electrode column combines two sealant respectively, and between a wherein perforation for the substrate
Between corresponding electrode column, each sealant coats the part of the substrate around corresponding perforation.
Above-mentioned cover plate of power battery, it is characterised in that the substrate is equipped with two grooves, and the two grooves interval is recessed in the substrate
A surface, and each groove be surrounded on wherein one perforation periphery.
Further, above-mentioned cover plate of power battery, it is characterised in that the both ends of each electrode column be respectively equipped with an external terminal with
An and internal terminal.
Further, above-mentioned cover plate of power battery, it is characterised in that the internal terminal of each electrode column is in rectangular sheet, and should
The outer profile of the internal terminal range covered beyond corresponding perforation.
It is preferred that above-mentioned cover plate of power battery, it is characterised in that each electrode column is equipped with a protrusion, which is by the electricity
Pole close to the external terminal one end annular projection and formed.
By above-mentioned technical characteristic, the present invention passes through each sealant for this of corresponding perforation and corresponding groove vicinity
The part of substrate coats, by corresponding perforation from the internal terminal of groove and corresponding electrode column and protrusion with different
Outer profile size, each sealant can be combined closely with the corresponding perforation with the corresponding electrode column, and in the power battery
When cover board is combined with a shell, it further can effectively block gas and liquid and two be perforated by this, is efficiently modified existing dynamic
Power battery cover board part is various, assembling is complicated, and can not block the shortcomings that gas passes through with liquid completely, uses and provides a kind of move
Power battery cover board and its manufacturing method.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 is the operational flowchart of present pre-ferred embodiments；
Fig. 2 is present pre-ferred embodiments sectional perspective exploded view；
Fig. 3 is present pre-ferred embodiments injection molding machining sketch chart；
Fig. 4 is the side view cutaway drawing of present pre-ferred embodiments partial enlargement；
Fig. 5 is the stereo appearance figure of present pre-ferred embodiments；
Fig. 6 is the stereo appearance figure at another visual angle of present pre-ferred embodiments；
Fig. 7 is the outside side view of present pre-ferred embodiments；
Fig. 8 is the stereogram exploded view of existing cover plate of power battery.
Specific embodiment
Cooperate schema and presently preferred embodiments of the present invention below, the present invention is further explained to reach predetermined goal of the invention institute
The technological means taken.
The present invention provides a kind of manufacturing method of cover plate of power battery, preferred embodiment for the present invention be such as Fig. 1 extremely
Shown in Fig. 4, including following operating procedure:
A, prepare material: as shown in Fig. 2, prepare a substrate 10 and two electrode columns 20, the substrate 10 have a top surface with
And a bottom surface, and two perforation 11 and two grooves 12 are equipped at intervals with, wherein the recessed top surface in the substrate 10 of each groove 12, and divide
It is not surrounded on the outer peripheral edge of two perforation 11, and each groove 12 and 11 centers of circle having the same of corresponding perforation；Two electrode column
20 be an anode electrode column and a negative electricity pole respectively, and each electrode column 20 has an external terminal 21 and an internal terminal
22, wherein the external terminal 21 is the one end for being located at the electrode column 20, and the external terminal 21 is recessed with from the center on top
One thread groove 211, and the external terminal 21 forms the protrusion 23 of an annular by proximal portion；The internal terminal 22 is provided at the electricity
The one end of pole 20 far from the external terminal 21.
B, it injection molding: please refers to as shown in Figures 3 and 4, which is worn respectively from the bottom surface of the substrate 10
Two perforation 11 out, makes two external terminal 21 protrude from the top surface of the substrate 10, and be inserted in a mold 40, which includes
One first module 41 and one with the second module 42 of 41 phase of the first module collocation, and in the preferred embodiment should
The inside of first module 41 is equipped with two spaced die cavitys 411 and a runner 412, and each die cavity 411 has and the substrate 10
And the shape of two electrode columns, 20 phase collocation, a substrate 10 and two electrode columns 20, the runner can be accommodated by making two die cavity 411 respectively
412 are equipped with four injection holes, and each injection hole is respectively communicated with a wherein die cavity 411 in the position that can accommodate electrode column 20 close to wherein one
It sets, the aforementioned substrate 10 and two electrode column 20 is disposed therein a die cavity 411, and after combining two module 41,42, then will
The plastic material of melting injects the die cavity 411 by the runner 412, two sealants 30 can be formed on the substrate 10, such as Fig. 4
Shown, respectively the sealant 30 is respectively interposed in wherein between an electrode column 20 and the substrate 10, is used in conjunction with corresponding electrode column 20
With the substrate 10, and the gas and liquid of the shell medial and lateral can be avoided when the cover plate of power battery is combined with a shell
By the cover plate of power battery, the preferably isolation effect of offer one is provided, the finished product of the cover plate of power battery can be obtained.
The present invention provides a kind of cover plate of power battery, and related preferred embodiment please refers to as shown in Figures 4 to 7, the power
Battery cover board be include a substrate 10, two electrode columns 20 and two sealants 30, in which:
It please refers to as shown in Fig. 2, Fig. 4 and Fig. 5, which is to have a top surface and a bottom surface in strip flake,
The substrate 10 is equipped with two perforation 11 and two grooves 12, which is disposed through on the substrate 10, two groove
12 is recessed from the top surface of the substrate 10 respectively, and two groove 12 is surrounded on the outer peripheral edge of a wherein perforation 11 respectively, and each recessed
Slot 12 is and the corresponding perforation center of circle having the same.
Two electrode column 20 is connected with the substrate 10 respectively, which is pierced by a wherein perforation 11 respectively, and
Protrude from the top surface and bottom surface of the substrate 10, and two electrode column 20 is an anode electrode column and a negative electricity pole respectively,
Each electrode column 20 is respectively equipped with an external terminal 21 and an internal terminal 22, and wherein the external terminal 21 is provided at the electrode column
20 one end, and the top surface of the substrate 10 is protruded from, which is recessed with a thread groove 211 from the center on top,
And the external terminal 21 forms a cricoid protrusion 23 by proximal portion, and the outer diameter of the protrusion 23 is less than corresponding perforation 11
Internal diameter makes the electrode column 20 can be from 10 bottom surface of substrate with one end of the external terminal 21 is pierced by the corresponding perforation 11 and protrudes
10 top surface of substrate；It please refers to as shown in Fig. 4 and Fig. 6, which is located at the electrode column 20 far from the external terminal 21
One end, and the internal terminal 22 is to make the outer profile of the internal terminal 22 beyond 11 institutes of corresponding perforation in rectangular sheet
The range covered.
It please refers to as shown in Figures 4 to 7, two sealant 30 with the substrate 10 and wherein 20 phase knot of an electrode column respectively
It closes, and is boundary with the substrate 10 between the substrate 10 electrode column 20 corresponding with this, each sealant 30 is equipped with a top end part
31 and a bottom end 32, wherein the top end part 31 protrudes from the side of 10 top surface of substrate, annular surrounding phase counter electrode column
The periphery of 20 protrusion 23, without protruding from the external terminal 21；The bottom end 32 protrudes from the side of 10 bottom surface of substrate, packet
The periphery for covering the internal terminal 22 of corresponding electrode column 20, the bottom surface without protruding from the internal terminal 22.
By above-mentioned technical characteristic, the present invention is worn with bottom end 32 by corresponding by the top end part 31 of each sealant 30
The part of the substrate 10 around hole 11 and corresponding groove 12 coats, and as shown in figure 4, by corresponding perforation 11 and groove
12 and internal terminal 22 and the protrusion 23 of corresponding electrode column 20 there is different outer profile sizes, each sealant 30 can be close
It is combined with the corresponding perforation 11 with the corresponding electrode column 20, and when the cover plate of power battery is combined with a shell,
Gas and liquid further can effectively be blocked by two perforation 11, be efficiently modified existing cover plate of power battery part it is various,
Assembling is complicated, and can not block gas completely and the shortcomings that liquid passes through, and uses and provides a kind of cover plate of power battery and its manufacture
Method.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of manufacturing method of cover plate of power battery, which is characterized in that including operating procedure below:
Prepare material: preparing a substrate and two electrode columns, wherein the substrate is equipped at intervals with two perforation, which is respectively
One anode electrode column and a negative electricity pole, and two electrode column can be pierced by a wherein perforation respectively；And
Injection molding: being pierced by a wherein perforation for two electrode column respectively, and be inserted in a mold, after injection molding is processed,
Be respectively formed a sealant between the substrate and two electrode column, two sealant be respectively interposed in wherein an electrode column with it is corresponding
Between perforation, uses respectively in connection with the substrate and corresponding electrode column, the finished product of the cover plate of power battery can be accessed.
2. the manufacturing method of cover plate of power battery according to claim 1, which is characterized in that in the operation of the injection molded
In step, the surface from the substrate around two perforation opens up two grooves, is surrounded on two groove respectively and wherein one wears
The outer peripheral edge in hole.
3. the manufacturing method of cover plate of power battery according to claim 1 or 2, which is characterized in that in the behaviour for preparing material
Make in step, is respectively formed an external terminal and an internal terminal in the both ends of each electrode column.
4. the manufacturing method of cover plate of power battery according to claim 3, which is characterized in that in the operation of the preparation material
In step, the internal terminal of each electrode column is formed into a rectangular sheet, wears the outer profile of the internal terminal beyond corresponding
The range that hole is covered.
5. the manufacturing method of cover plate of power battery according to claim 3, which is characterized in that in the operation of the preparation material
In step, protrude to form a protrusion close to one end annular of the external terminal in each electrode column.
6. a kind of cover plate of power battery is combined with a shell of a power battery, which is characterized in that including a substrate, two
Electrode column and two sealants, in which:
The substrate is equipped with two perforation, which is disposed through on the substrate；
Two electrode column is connected with the substrate respectively, which is pierced by a wherein perforation respectively, and protrudes from the substrate
Top surface and bottom surface；And
With the substrate and wherein an electrode column combines two sealant respectively, and between wherein a perforation and the phase of the substrate
Between counter electrode column, each sealant coats the part of the substrate around corresponding perforation.
7. cover plate of power battery according to claim 6, which is characterized in that the substrate is equipped with two grooves, between two groove
Every a recessed surface in the substrate, and each groove is the periphery for being surrounded on a wherein perforation.
8. cover plate of power battery according to claim 6 or 7, which is characterized in that the both ends of each electrode column are respectively equipped with one
External terminal and an internal terminal.
9. cover plate of power battery according to claim 8, which is characterized in that the internal terminal of each electrode column is in rectangular tab
Shape, and the range that the outer profile of the internal terminal is covered beyond corresponding perforation.
10. cover plate of power battery according to claim 8, which is characterized in that each electrode column is equipped with a protrusion, which is
It is formed by the electrode column close to one end annular projection of the external terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118951.7A CN110116471A (en) | 2018-02-06 | 2018-02-06 | Cover plate of power battery and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118951.7A CN110116471A (en) | 2018-02-06 | 2018-02-06 | Cover plate of power battery and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110116471A true CN110116471A (en) | 2019-08-13 |
Family
ID=67519941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810118951.7A Pending CN110116471A (en) | 2018-02-06 | 2018-02-06 | Cover plate of power battery and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110116471A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752518A (en) * | 2009-12-30 | 2010-06-23 | 江苏春兰清洁能源研究院有限公司 | Integral upper cover assembly of battery |
| US20130115490A1 (en) * | 2011-11-04 | 2013-05-09 | Joong-Heon KIM | Rechargeable battery |
| CN103872275A (en) * | 2014-03-03 | 2014-06-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
| CN203707197U (en) * | 2013-12-06 | 2014-07-09 | 惠州比亚迪电池有限公司 | Power battery cover plate assembly and power battery |
| CN104409667A (en) * | 2014-11-23 | 2015-03-11 | 深圳市科达利实业股份有限公司 | Power battery top cover with high sealing property and processing method for power battery top cover |
| US20170222194A1 (en) * | 2016-02-02 | 2017-08-03 | Primearth Ev Energy Co., Ltd. | Rechargeable battery and method for molding insulator |
| CN107302064A (en) * | 2016-04-15 | 2017-10-27 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly |
| CN107658394A (en) * | 2017-08-22 | 2018-02-02 | 深圳市长盈精密技术股份有限公司 | A kind of electrokinetic cell, cover plate of power battery and its manufacture method |
-
2018
- 2018-02-06 CN CN201810118951.7A patent/CN110116471A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752518A (en) * | 2009-12-30 | 2010-06-23 | 江苏春兰清洁能源研究院有限公司 | Integral upper cover assembly of battery |
| US20130115490A1 (en) * | 2011-11-04 | 2013-05-09 | Joong-Heon KIM | Rechargeable battery |
| CN203707197U (en) * | 2013-12-06 | 2014-07-09 | 惠州比亚迪电池有限公司 | Power battery cover plate assembly and power battery |
| CN103872275A (en) * | 2014-03-03 | 2014-06-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
| CN104409667A (en) * | 2014-11-23 | 2015-03-11 | 深圳市科达利实业股份有限公司 | Power battery top cover with high sealing property and processing method for power battery top cover |
| US20170222194A1 (en) * | 2016-02-02 | 2017-08-03 | Primearth Ev Energy Co., Ltd. | Rechargeable battery and method for molding insulator |
| CN107302064A (en) * | 2016-04-15 | 2017-10-27 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly |
| CN107658394A (en) * | 2017-08-22 | 2018-02-02 | 深圳市长盈精密技术股份有限公司 | A kind of electrokinetic cell, cover plate of power battery and its manufacture method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190813 |