CN206961888U - Terminal leakproof welding structure - Google Patents
Terminal leakproof welding structure Download PDFInfo
- Publication number
- CN206961888U CN206961888U CN201720684970.7U CN201720684970U CN206961888U CN 206961888 U CN206961888 U CN 206961888U CN 201720684970 U CN201720684970 U CN 201720684970U CN 206961888 U CN206961888 U CN 206961888U
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- CN
- China
- Prior art keywords
- hole
- pole
- terminal
- welding structure
- structure according
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- 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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Classifications
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- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
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- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the material
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
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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
Battery field is the utility model is related to, discloses a kind of terminal leakproof welding structure, middle cover（1）It is provided with terminal groove（11）, the first pole column hole is sequentially provided with from inside to outside from bottom to top in terminal groove（12）, stepped hole（13）With domatic hole（14）；Copper sheet in terminal（22）One end pass through welding hole（210）With copper core（21）It is welded and fixed, the other end is provided with the pole column hole of funnel-form second（23）, the lower edge of the second pole column hole, which is set, extends boss（25）；Pole（3）The madial wall of lateral wall and extension boss, the first pole column hole is welded and fixed, sealing ring（4）It is enclosed on pole lateral wall and in stepped hole, extension boss bottom is located on sealing ring, the inclined plane of the second pole column hole（24）On domatic hole.This structure can realize that unleaded set leakproof welding, cost are cheap between battery terminal and pole.
Description
Technical field
Battery technology field is the utility model is related to, more particularly to a kind of terminal leakproof welding structure.
Background technology
Accumulator terminal is battery important component, at present high-power electric automobile batteries terminal, by being welded to connect in storage
On the pole group of inside battery, lead set is provided with generally on middle cover, terminal welding hole snare is on lead set external diameter, with the pole on the group of pole
Post welds together.Lead set on middle cover plays a part of helping weldering, but the invisible increased production material cost of battery.Therefore,
Urgently invent a kind of terminal structure that can be welded with unleaded set leakproof.
Utility model content
Purpose of utility model：For problems of the prior art, the utility model provides a kind of terminal leakproof welding
Structure, unleaded set leakproof welding between battery terminal and pole can be realized, ensure that the quality of battery, cost is cheap.
Technical scheme：The utility model provides a kind of terminal leakproof welding structure, including middle cover, terminal, pole and close
Seal；The middle cover is provided with terminal groove, be sequentially provided with from inside to outside from bottom to top in terminal groove the first pole column hole, stepped hole,
With domatic hole；The terminal is made up of copper core and copper sheet, and one end of the copper sheet is welded and fixed by welding hole and the copper core, separately
One end is provided with the pole column hole of funnel-form second, and the lower edge of second pole column hole sets extension boss；The lateral wall of the pole with
The madial wall of the extension boss and first pole column hole is welded and fixed, and the sealing ring is enclosed on the pole lateral wall
And in the stepped hole, the bottom of the extension boss is located on the sealing ring, the inclination of second pole column hole
Face is located on the domatic hole.
Further, described terminal leakproof welding structure, it is characterised in that also including some pad, some pads
Platform is symmetrically fixed on along one week on the domatic hole, on second pole column hole along bottom surface pad in each pad.Pad
Setting cause copper sheet between the inclined plane lower surface of the second pole column hole and the inclined plane upper surface in domatic hole, the second pole column hole
Larger gap is respectively provided between stepped hole and between extension boss bottom and sealing ring, i.e. the setting of pad will can be held
Hollow out between sub- copper sheet and middle cover, can be by the major part pole between extension boss bottom and sealing ring outside, this
In the encapsulating into terminal groove, glue can enter in above-mentioned gap sample, and then can be by exposed to outer major part pole
Lateral wall and sealing ring position effectively seal, and prevent the acid solution of internal storage battery below middle cover because above-mentioned position seals are not tight
And leak into above middle cover.
Further, the copper core is column structure, and its lateral wall is sequentially provided with external diameter and successively decreased in step from top to bottom
First step, second step and the 3rd step, and the copper core upper surface center set perpendicular to upper surface spiral shell
Pit, the aperture of the welding hole and the major diameter fit of the 3rd step, and the upper surface of the copper sheet and the second step
Outer diameter face be vertically affixed and by being welded and fixed；It is preferred that the external diameter of the second step differs with the external diameter of the first step
1 ~ 3mm, the external diameter of the 3rd step differ 1 ~ 3mm with the external diameter of the second step.The step of copper core lateral wall is successively decreased
In structure, the end face of first step（That is the end face of copper core）Directly it is connected with connector, size is fixed；Second step is set
Copper water is leaked on the end face of copper core when meter can effectively prevent from welding copper sheet and copper core using copper water, influence terminal end face with
The outward appearance of effective connection and terminal between connector；The design of 3rd step copper sheet to cross welding hole to be enclosed in copper core,
So that the connection between copper core and copper sheet is more firm.
Preferably, coordinate between the pole and the extension boss in gap.
Preferably, the gap width between the pole and the extension boss is 0.1 ~ 0.5mm.
Preferably, the height of the extension boss is 2 ~ 5mm.
Preferably, the wall thickness of the extension boss is 0.5 ~ 2mm.
Preferably, the inclined plane angle of inclination of second pole column hole is 10 ° ~ 90 °.
Preferably, the depth of second pole column hole is 3 ~ 10mm.
Beneficial effect：In the utility model, first, extension boss, the extension are set in the second pole column hole of funnel-form lower edge
Boss has certain height, and the weldering between pole and copper sheet is undoubtedly added when being welded between its madial wall and pole lateral wall
Junction is accumulated, and the pole material that can prevent to melt due to welding heat to a certain extent --- lead leaks into downwards lower section pole
Lateral wall and sealing ring position, lower section sealing ring position caused by this makes it possible to avoid Lou lead and sealing ring and extension boss
Interstitial site between bottom blocks, and then avoids influenceing sealing effectiveness of the glue to above-mentioned position；Secondly, in the first pole column hole
Between side wall and pole lateral wall and it is welded and fixed, and sealing ring is also cased with pole lateral wall, above-mentioned multiple protective is effective
Prevent the acid solution below middle cover in battery from being leaked out to through the gap between pole and copper sheet above middle cover；With not having in the prior art
Have to set the extension boss but terminal is welded on into lead put and compare, the utility model is simply somewhat changed second on copper sheet
The structure of pole column hole just can effectively prevent the acid solution seepage in battery, without using lead set, while simplifying structure again
Being capable of effectively save cost.
Brief description of the drawings
Fig. 1 is the sectional view before the welding of terminal leakproof welding structure；
Fig. 2 is the sectional view of terminal；
Fig. 3 is the top view of terminal；
Fig. 4 is the sectional view after the welding of terminal leakproof welding structure.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Present embodiments provide for a kind of terminal leakproof welding structure, as shown in figure 1, by middle cover 1, terminal 2, the and of pole 3
Sealing ring 4 forms, and there is terminal groove 11 top of middle cover 1, and the first pole is set gradually from inside to outside from bottom to top in terminal groove 11
Hole 12, stepped hole 13, domatic hole 14 and four pad 15, the lower edge of stepped hole 13 are the upper edge of the first pole column hole 12, stepped hole
13 upper edge is the lower edge in domatic hole 14, four pad 15 be symmetrically fixed on domatic hole 14 on along one week；As shown in Figures 2 and 3,
Terminal 2 is made up of copper sheet 22 and copper core 21, and copper core 21 is circular or polygon column structure, and the lateral wall of copper core 21 is from top to bottom
First step 26, the step 28 of second step 27 and the 3rd are sequentially provided with, and the external diameter of first step 26 is outer than second step 27
Big 1 ~ the 3mm in footpath, the external diameter of second step 27 is bigger 1 ~ 3mm than the external diameter of the 3rd step 28, the upper surface of first step 26（That is copper core
21 upper surface）Center is set perpendicular to upper surface, the screwed hole 29 that size is M4 ~ M12；One end of copper sheet 22 sets weldering
Hole 210, welding hole 210 are enclosed on the outside of the 3rd step 28, and the aperture of welding hole 210 and the major diameter fit of the 3rd step 28, copper sheet
22 upper surface is vertical with the outer diameter face of second step 27 to be close to and is welded and fixed, and the other end of copper sheet 22 sets funnel-form second
Pole column hole 23, the angle of inclination of the inclined plane 24 of the second pole column hole 23 can be at 10 ~ 90 °, 3 ~ 10mm of hole depth, the second pole column hole 23
Lower edge set height be 2 ~ 5mm, the extension boss 25 that wall thickness be 0.5 ~ 2mm, the second pole column hole 23 it is upper along pad four pads
On platform 15, the inclined plane 24 of the second pole column hole 23 is positioned at the domatic top of hole 14, and sealing ring 4 is located in stepped hole 13, when pole 3
After one end is inserted in the first pole column hole 12 successively and the second pole column hole 23, sealing ring 4 is enclosed on the lateral wall of pole 3, extends boss 25
Bottom be located at the top of sealing ring 4, extend expose portion pole 3 between the bottom of boss 25 and sealing ring 4.
Such as Fig. 4, the lateral wall of pole 3 and the madial wall of the first pole column hole 12 and the madial wall of extension boss 25 are welded
It is fixed, coordinate between pole 3 and extension boss 25 in gap, gap width is 0.1 ~ 0.5mm, into terminal groove 11 after encapsulating,
Glue 5 is full of whole terminal groove 11, and glue 5 fills up the lower surface of inclined plane 24 of the second pole column hole 23 and the inclination in domatic hole 14
The gap between gap and extension boss 25 and sealing ring 4 between the upper surface of face.
For above-mentioned embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with this skill
The people of art can understand content of the present utility model and implement according to this, can not limit the scope of protection of the utility model with this.
All equivalent transformations done according to the utility model Spirit Essence or modification, should all cover the scope of protection of the utility model it
It is interior.
Claims (10)
1. a kind of terminal leakproof welding structure, it is characterised in that including middle cover（1）, terminal（2）, pole（3）And sealing ring（4）；
The middle cover（1）It is provided with terminal groove（11）, the terminal groove（11）Inside it is sequentially provided with the first pole from inside to outside from bottom to top
Hole（12）, stepped hole（13）With domatic hole（14）；The terminal（2）By copper core（21）And copper sheet（22）Composition, the copper sheet
（22）One end pass through welding hole（210）With the copper core（21）It is welded and fixed, the other end is provided with the pole column hole of funnel-form second（23）,
Second pole column hole（23）Lower edge set extension boss（25）；The pole（3）Lateral wall and the extension boss
（25）And first pole column hole（12）Madial wall be welded and fixed, the sealing ring（4）It is enclosed on the pole（3）Outside
Wall and it is located at the stepped hole（13）It is interior, the extension boss（25）Bottom be located at the sealing ring（4）On, described second
Pole column hole（23）Inclined plane（24）Positioned at the domatic hole（14）On.
2. terminal leakproof welding structure according to claim 1, it is characterised in that also including some pad（15）, it is described
Some pad（15）Symmetrically it is fixed on the domatic hole（14）On along one week, second pole column hole（23）On along bottom surface pad exist
Each pad（15）On.
3. terminal leakproof welding structure according to claim 1, it is characterised in that the copper core（21）For column structure,
It is in the first step that step is successively decreased that its lateral wall is sequentially provided with external diameter from top to bottom（26）, second step（27）With the 3rd step
（28）, and the copper core（21）Upper surface center set perpendicular to upper surface screwed hole（29）, the welding hole（210）
Aperture and the 3rd step（28）Major diameter fit, and the copper sheet（22）Upper surface and the second step（27）'s
Outer diameter face is vertically affixed and by being welded and fixed.
4. terminal leakproof welding structure according to claim 3, it is characterised in that the second step（27）External diameter with
The first step（26）External diameter differ 1 ~ 3mm, the 3rd step（28）External diameter and the second step（27）It is outer
Footpath differs 1 ~ 3mm.
5. terminal leakproof welding structure according to claim 1, it is characterised in that the pole（3）It is convex with the extension
Platform（25）Between in gap coordinate.
6. terminal leakproof welding structure according to claim 5, it is characterised in that the pole（3）It is convex with the extension
Platform（25）Between gap width be 0.1 ~ 0.5mm.
7. terminal leakproof welding structure according to any one of claim 1 to 6, it is characterised in that the extension boss
（25）Height be 2 ~ 5mm.
8. terminal leakproof welding structure according to any one of claim 1 to 6, it is characterised in that the extension boss
（25）Wall thickness be 0.5 ~ 2mm.
9. terminal leakproof welding structure according to any one of claim 1 to 6, it is characterised in that second pole
Hole（23）Inclined plane angle of inclination be 10 ° ~ 90 °.
10. terminal leakproof welding structure according to any one of claim 1 to 6, it is characterised in that second pole
Hole（23）Depth be 3 ~ 10mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684970.7U CN206961888U (en) | 2017-06-14 | 2017-06-14 | Terminal leakproof welding structure |
| PCT/CN2017/113737 WO2018227893A1 (en) | 2017-06-14 | 2017-11-30 | Leakproof welding structure for terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684970.7U CN206961888U (en) | 2017-06-14 | 2017-06-14 | Terminal leakproof welding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206961888U true CN206961888U (en) | 2018-02-02 |
Family
ID=61380031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720684970.7U Active CN206961888U (en) | 2017-06-14 | 2017-06-14 | Terminal leakproof welding structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206961888U (en) |
| WO (1) | WO2018227893A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361669A (en) * | 2021-11-30 | 2022-04-15 | 湖南丰日电源电气股份有限公司 | Acid leakage preventing multiple sealing structure for storage battery |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5853155A (en) * | 1981-09-25 | 1983-03-29 | Yuasa Battery Co Ltd | Sealed lead storage battery |
| DE3236370A1 (en) * | 1982-10-01 | 1984-04-05 | Varta Batterie Ag, 3000 Hannover | GAS- AND LIQUID-TIGHT POLE SEALING FOR ELECTRIC ACCUMULATORS, ESPECIALLY LEAD ACCUMULATORS |
| CN201315325Y (en) * | 2008-03-11 | 2009-09-23 | 哈尔滨光宇蓄电池股份有限公司 | Novel liquid-leakage-proof device of storage battery |
| CN103268927B (en) * | 2013-05-24 | 2015-09-09 | 浙江天能电池(江苏)有限公司 | A kind of lead-acid storage battery terminal Welding Structure |
| CN205583079U (en) * | 2016-02-02 | 2016-09-14 | 广东猛狮新能源科技股份有限公司 | Lead -acid storage battery |
| CN205680727U (en) * | 2016-06-24 | 2016-11-09 | 浙江天能电池江苏新能源有限公司 | A kind of terminal groove structure of quantitative gluing water |
-
2017
- 2017-06-14 CN CN201720684970.7U patent/CN206961888U/en active Active
- 2017-11-30 WO PCT/CN2017/113737 patent/WO2018227893A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018227893A1 (en) | 2018-12-20 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |