CN204632815U - A kind of battery cover plate device and battery - Google Patents
A kind of battery cover plate device and battery Download PDFInfo
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- CN204632815U CN204632815U CN201520348904.3U CN201520348904U CN204632815U CN 204632815 U CN204632815 U CN 204632815U CN 201520348904 U CN201520348904 U CN 201520348904U CN 204632815 U CN204632815 U CN 204632815U
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- pole
- battery cover
- bowl
- battery
- sealing
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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
The utility model relates to a kind of battery cover plate device and battery, belongs to cell art.This battery cover plate device, comprise battery cover, be located in the pole on battery cover, and be used for sealing mechanism that the junction between pole and battery cover is sealed, described sealing mechanism comprises and is positioned at battery cover side and the sealing ring be set on pole, described sealing mechanism also comprises and is positioned at battery cover opposite side and the sealing drum be set on pole and dense block bowl, it is outside that described dense block bowl is set in described sealing drum, and have prevent sealing drum along pole axis to away from the movement of battery cover direction axial Stop structure and prevent sealing drum along the radial Stop structure of pole radial outward expansion.This battery cover plate device substantially increases the sealing of pole and battery cover contact position.
Description
Technical field
The utility model relates to a kind of battery cover plate device and battery, belongs to cell art.
Background technology
In recent years, the development of green energy resource industry is more and more faster, and the application of secondary cell in fields such as electric motor car, energy storage, communication power supplies is also more and more extensive, and these fields are very high to the security requirement of battery.The secondary cell used due to fields such as electric motor car, energy storage, communication power supplies is higher to capacity requirement, and generally all use rectangular cell, the sealing of rectangular cell also becomes the key factor affecting its fail safe.And affecting in the factor of the sealing of rectangular cell, the sealing of battery cover plate device seems most important.
In prior art, battery cover board is general with case weld together with, is easy to realize excellent sealing, is arranged on that the sealing of pole on battery cover board and cover plate junction is then very difficult to be ensured.In order to improve the sealing of pole and cover plate junction, notification number is that the Chinese utility model patent of CN202871880U discloses a kind of rectangular cell lower seal structure, comprise pole and battery cover, also comprise lower insulation spacer and upper insulation spacer, lower insulation spacer is outer notch cuttype, and upper insulation spacer is notch cuttype in secondary, and battery cover is placed in the outer ring gap of two insulation spacers, large O type circle is placed in the groove of insulation spacer, and little O type circle is placed on the downstairs of insulation spacer.In this rectangular cell lower seal structure, between pole and battery cover, be provided with upper and lower two insulation spacers, the face that upper insulation spacer contacts with pole and battery cover is provided with O type circle respectively, to realize the sealing between upper insulation plate and pole and battery cover.But insulation spacer and lower insulation spacer are arranged between pole and battery cover on it, cannot realize the extruding along pole radial direction, are difficult to realization between insulation spacer and pole and seal completely.And the sealing between its lower insulation spacer and pole and battery cover only realizes the extruding of lower insulation spacer by pole and cover plate, is also difficult to realization and seals completely.Particularly when battery used after the long period, insulation spacer generation deformation or aging after, be easy to occur gap between insulation spacer and pole and battery cover, affect its sealing.
Utility model content
The purpose of this utility model is to provide a kind of battery cover plate device, to solve the problem of pole and cover plate junction poor sealing in prior art.The purpose of this utility model is also to provide a kind of battery using above-mentioned battery cover plate device.
The technical scheme that the utility model solves the problems of the technologies described above adopted battery cover plate device is as follows:
A kind of battery cover plate device, comprise battery cover, be located in the pole on battery cover, and be used for sealing mechanism that the junction between pole and battery cover is sealed, described sealing mechanism comprises and is positioned at battery cover side and the sealing ring be set on pole, described sealing mechanism also comprises and is positioned at battery cover opposite side and the sealing drum be set on pole and dense block bowl, it is outside that described dense block bowl is set in described sealing drum, and have prevent sealing drum along pole axis to away from the movement of battery cover direction axial Stop structure and prevent sealing drum along the radial Stop structure of pole radial outward expansion.
Described dense block bowl comprises lock bowl bottom, described lock bowl bottom has towards the front end face of described sealing drum, and be used for wearing the lock bowl through hole of pole, described dense block bowl comprises the annular boss be convexly equipped on lock bowl bottom front end face, the inwall of described annular boss constitutes described radial Stop structure, and the part that the front end face of described lock bowl bottom is in annular boss inside constitutes described axial Stop structure.
Described pole one end is provided with the sealing ring Stop structure described sealing ring being carried out to block along pole axis to the movement away from battery cover direction, and the other end is provided with the dense block bowl Stop structure described dense block bowl being carried out to block along pole axis to the movement away from battery cover direction.
Described battery cover is inside battery cover towards the side of inside battery, side towards outside batteries is outside battery cover, described pole one end be positioned at inside battery cover is fixedly installed pole end cap, the rear end face of pole end cap near the side of battery cover constitutes described sealing ring Stop structure or dense block bowl Stop structure, described pole one end be positioned at outside battery cover is removably connected with pole retaining mechanism, and described pole retaining mechanism constitutes described dense block bowl Stop structure or sealing ring Stop structure.
Be provided with flat shim between described dense block bowl and dense block bowl Stop structure, described flat shim has the pad front end face with dense block bowl rear end face snug fit.
Described pole end cap is fixedly connected with collector away from one end of battery cover, and described collector has the pole piece weld part for welding battery pole piece.
Described collector has the U-type groove of opening towards battery pole piece, and the cell wall of described U-type groove constitutes described pole piece weld part.
Affiliated battery cover has the pole through hole for wearing pole, and described pole through-hole wall is provided with the first annular step surface near one end of sealing ring, and the outside diameter of described first annular step surface is equal with sealing ring external diameter.
Described pole through-hole wall is provided with the second annular table terrace near one end of sealing drum, and the outside diameter of described second annular table terrace is equal with sealing drum outer circumference diameter.
The technical scheme of battery of the present utility model is as follows:
A kind of battery using above-mentioned battery cover plate device.
The sealing mechanism of battery cover plate device of the present utility model comprises point sealing ring being located at battery cover both sides and sealing drum and dense block bowl, good flexible sealing is formed at pole and battery cover contact position, it is outside that dense block bowl is set in described sealing drum, and simultaneously extruding block carried out to away from the movement in battery cover direction and sealing drum along the movement of pole radial outward expansion along pole axis to sealing drum, make sealing drum realize dual-seal to pole axis and radial direction, substantially increase the sealing of pole and battery cover contact position.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of battery of the present utility model;
Fig. 2 is the structural representation of "Ji" type collector in Fig. 1;
Fig. 3 is the structural representation of " L " type collector;
Fig. 4 is the structural representation of the collector of falling T-shape;
Fig. 5 is the structural representation of " one " font collector;
Fig. 6 is the structural representation of the pole in Fig. 1;
Fig. 7 is the end view of Fig. 6;
Fig. 8 is the cutaway view of Fig. 7;
Fig. 9 is the structural representation of another kind of pole;
Figure 10 is the end view of Fig. 9;
Figure 11 is the cutaway view of Figure 10;
Figure 12 is the structural representation of dense block bowl in Fig. 1;
Figure 13 is the end view of Figure 12;
Figure 14 is the cutaway view of Figure 13;
Figure 15 is the sectional side elevation of sealing drum in Fig. 1;
Figure 16 is the sectional side elevation of battery cover in Fig. 1.
In figure parts and numbering as follows:
1-locking nut; 2-flat shim; 3-dense block bowl; 4-sealing drum; 5-battery cover; 6-sealing ring; 7-pole; 8-pole solder side; 9-collector; 10-location hole; 11-positive plate; 12-barrier film; 13-bundling belt; 14-battery case; 15-negative plate; 16-spring shim; 17-safety valve
Embodiment
The technical problem solved to make the utility model, technical scheme and beneficial effect are easier to understand, and are described in detail to the utility model below in conjunction with the drawings and the specific embodiments.
Battery of the present utility model can be any one in smee cell, nickel iron cell, Ni-MH battery, Ni-Cr battery, nickel-zinc cell and lithium battery, difference between different batteries is only that positive pole, negative pole, barrier film are different with the material of electrolyte, is described in the present embodiment for nickel-zinc cell.
With reference to figure 1, battery battery cover plate device of the present utility model, described battery cover plate device comprises battery cover 5, be located in the cylindrical pole 7 on battery cover and be used for the sealing mechanism that seals the junction between pole and battery cover.Described sealing mechanism comprises and is positioned at battery cover 5 side and the sealing ring 6 be set on pole 7, and in the present embodiment, sealing ring is O type circle, and sealing ring can be cylindric sealing ring in other embodiments.Described sealing mechanism also comprises and is positioned at battery cover 5 opposite side and the sealing drum 4 be set on pole 7 and dense block bowl 3.Described sealing ring 6, sealing drum 4 are soft material, and as rubber, flexible plastic etc., the material of described dense block bowl 3 is harder material, as metal, rigid plastics etc.
We define battery cover 5 towards the side of inside battery is inside battery cover, side towards outside batteries is outside battery cover, in the present embodiment, described sealing ring 6 is set on one end that pole 7 is positioned at inside battery cover, and sealing drum 4 and dense block bowl 3 are set on one end that pole 7 is positioned at outside battery cover.In other embodiments, sealing ring can be set on one end that pole is positioned at outside battery cover, and accordingly, sealing drum and dense block bowl can be set on one end that pole is positioned at inside battery cover.
With reference to Figure 15, described sealing drum 4 is cylinder-like structure, and has two sealing drum end faces 401 perpendicular to sealing drum axis.It is outside that dense block bowl 3 is set in described sealing drum 4, and have prevent sealing drum along pole axis to away from the movement of battery cover direction axial Stop structure and prevent sealing drum along the radial Stop structure of pole radial outward expansion.Described dense block bowl comprises lock bowl bottom 301, in the present embodiment, with reference to figure 12-14, lock bowl bottom is disc-shaped structure, described lock bowl bottom has towards the front end face of sealing drum, and being arranged on the lock bowl through hole 302 that lock bowl bottom center is used for wearing pole, the internal diameter of described lock bowl through hole is equal with pole external diameter.Described dense block bowl comprises the annular boss 303 be convexly equipped on lock bowl bottom front end face, and the inwall of described annular boss constitutes described radial Stop structure, and the part that the front end face of described lock bowl bottom is in annular boss inside constitutes described axial Stop structure.The internal diameter of annular boss is equal with the external diameter of sealing drum, expands when being squeezed to prevent sealing drum along the radial direction of pole.Like this, sealing drum can be made to be subject to dense block bowl along the extruding in pole axis and radial both direction, to substantially increase the sealing effectiveness in sealing drum and pole outer peripheral face and battery cover board face.
In order to avoid sealing ring and dense block bowl move along on pole axis direction, affect sealing effectiveness, one end that described pole is arranged with sealing ring is provided with the sealing ring Stop structure described sealing ring being carried out to block along pole axis to the movement away from battery cover direction, and the other end is provided with the dense block bowl Stop structure described dense block bowl being carried out to block along pole axis to the movement away from battery cover direction.In the present embodiment, with reference to figure 6-8, pole one end be positioned at inside battery cover is fixedly installed pole end cap 701, and the rear end face of pole end cap near the side of battery cover constitutes described sealing ring Stop structure.Pole one end be positioned at outside battery cover is removably connected with pole retaining mechanism, and described pole retaining mechanism constitutes described dense block bowl Stop structure.In the present embodiment, described pole retaining mechanism is the locking nut 1 coordinated with corresponding pole end thread.
In order to improve the sealing effectiveness between each black box, dense block bowl is set to the plane perpendicular to pole axis away from the rear end face of battery cover, and flat shim 2 is provided with between dense block bowl and locking nut, described flat shim has the pad front end face with dense block bowl rear end face snug fit.Pad front end face and dense block bowl rear end face are all set to the plane perpendicular to pole axis, can increase contact area therebetween, improve sealing effectiveness.Be provided with spring shim 16 between described flat shim and locking nut, after tightening locking nut, spring shim can apply elastic force as locking nut, pushes against locking nut, makes its difficult drop-off.
Connection between pole and battery pole piece is realized by collector 9, described pole end cap defines pole solder side 8 away from the end face of one end of battery cover, described pole solder side is welded and fixed and is connected with collector 9, described collector 9 has the pole piece weld part for welding battery pole piece.In the present embodiment, as shown in Figure 2, collector can make the collector that cross section is "Ji" type, this collector has the U-type groove of opening towards battery pole piece, the outer face, collector top 901 that described U-type groove bottom land is corresponding is used for welding with pole end cap, thus constituting collector welding end face, the U-type groove notch both sides of collector have the bottom surface 902 for welding pole piece or lug, thus define collector welding bottom surface.Described battery pole piece is pole piece of the prior art, comprises positive plate 11, and with the negative plate 13 that barrier film 12 separates, positive plate and negative plate is provided with location hole 10.Namely positive plate, barrier film negative plate define battery core after stacking the binding of rear use bundling belt 13.
As shown in figure 16, described battery cover has the pole through hole for wearing pole, described pole through-hole wall is provided with the first annular step surface 501 near one end of sealing ring, the outside diameter of described first annular step surface is equal with sealing ring external diameter, be placed on the first annular step surface to make sealing ring, positioning action is realized to sealing ring, and prevents sealing ring from outwards expanding.Described pole through-hole wall is provided with the second annular table terrace 502 near one end of sealing drum, and the outside diameter of described second annular table terrace is equal with sealing drum outer circumference diameter, to make realization to the location of sealing drum.In the present embodiment, the height of sealing drum equals the height sum of the annular boss on the degree of depth of the second annular table terrace and dense block bowl, in other embodiments, the height of sealing drum also can be greater than the height sum of the annular boss on the degree of depth of the second annular table terrace and dense block bowl.In the present embodiment, the centre position of battery cover is provided with safety valve 17, certainly may also be concrete condition and does not establish safety valve.
The cover board arrangement of above-mentioned battery is when assembling, first sealing ring is set on pole, then pole pole end cap having welded collector is passed from the pole through hole battery cover, successively sealing drum, dense block bowl, flat shim, spring shim are set on pole again, finally locking nut is spun on the screw thread on pole outer peripheral face, tightens.Pole piece or lug utilize Laser Welding or electron beam or ultrasonic bonding to be welded in the U-type groove of collector.Certainly, also first can be about to pole piece or lug and weld with collector, then collector is welded on pole end cap, then by pole and corresponding assembled, obtain battery cover plate device.To connect battery cover plate device and battery case 14 welded seal of battery core, fluid injection, sealing can obtain battery.
In the specific implementation, sealing ring can be arranged on pole and be positioned on the one end in the outside of battery cover, and correspondingly, sealing drum and dense block bowl can be arranged on one end that pole is positioned at inside battery cover.
In the specific implementation, described dense block bowl can adopt following structure: dense block bowl is by two annulus varied in size and be arranged on isometric intercell connector between two annulus and form, the internal diameter of little ring is less than the external diameter of sealing drum, the internal diameter of large ring is greater than the external diameter of sealing drum, like this, large ring just constitutes described radial Stop structure, and little ring constitutes described axial Stop structure.Now, the material of dense block bowl can adopt plastics, to make dense block bowl when locking sealing drum, can have a small amount of deformation.
In the specific implementation, sealing ring Stop structure also can use the locking nut with pole threaded engagement, dense block bowl Stop structure also can use vertical and pole axis direction to wear and realize removably connecting with the pin in pole, certainly, sealing ring Stop structure and dense block bowl Stop structure also can adopt the ring baffle be welded to connect with pole, be welded on pole and no longer dismantle after each assembly on pole installs.
In the specific implementation, any one in flat shim and spring shim can not be set, also can both not arrange.
According to the shape of collector cross section, the collector in above-described embodiment can also adopt following scheme:
As shown in Figure 3, described collector is " L " type collector, this collector has the incline 903 with projection edge bottom collector bottom collector, and incline constitutes described welding end face away from the end face of the one end bottom collector, and the lower surface bottom collector constitutes described welding bottom surface.
As shown in Figure 4, described collector is the collector of falling T-shape, the fin 904 that this collector has bottom collector and projection is middle bottom collector, fin constitutes described welding end face away from the end face of the one end bottom collector, and the lower surface bottom described collector constitutes described welding bottom surface.
As shown in Figure 5, described collector is " one " font collector, and this collector has upper and lower two plate faces, and upper face 905 constitutes described welding end face, and lower face 906 constitutes described welding bottom surface.
In the specific implementation, as shown in figs. 9-11, pole can replace with following scheme: pole one end be positioned at inside battery cover is fixedly installed pole weld part, described pole weld part comprises the solder-bump 702 with pole piece or tab welding, and the pole end plate 703 be arranged between pole and solder-bump, the rear end face of described pole end plate constitutes described sealing ring Stop structure.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit interest field of the present utility model with this, therefore, with the equivalent variations done within the scope of the utility model, still belong to the scope that the utility model is contained.
Claims (10)
1. a battery cover plate device, comprise battery cover, be located in the pole on battery cover, and be used for sealing mechanism that the junction between pole and battery cover is sealed, described sealing mechanism comprises and is positioned at battery cover side and the sealing ring be set on pole, it is characterized in that, described sealing mechanism also comprises and is positioned at battery cover opposite side and the sealing drum be set on pole and dense block bowl, it is outside that described dense block bowl is set in described sealing drum, and have prevent sealing drum along pole axis to away from the movement of battery cover direction axial Stop structure and prevent sealing drum along the radial Stop structure of pole radial outward expansion.
2. battery cover plate device as claimed in claim 1, it is characterized in that, described dense block bowl comprises lock bowl bottom, described lock bowl bottom has towards the front end face of described sealing drum, and be used for wearing the lock bowl through hole of pole, described dense block bowl comprises the annular boss be convexly equipped on lock bowl bottom front end face, and the inwall of described annular boss constitutes described radial Stop structure, and the part that the front end face of described lock bowl bottom is in annular boss inside constitutes described axial Stop structure.
3. battery cover plate device as claimed in claim 1, it is characterized in that, described pole one end is provided with the sealing ring Stop structure described sealing ring being carried out to block along pole axis to the movement away from battery cover direction, and the other end is provided with the dense block bowl Stop structure described dense block bowl being carried out to block along pole axis to the movement away from battery cover direction.
4. battery cover plate device as claimed in claim 3, it is characterized in that, described battery cover is inside battery cover towards the side of inside battery, side towards outside batteries is outside battery cover, described pole one end be positioned at inside battery cover is fixedly installed pole end cap, the rear end face of pole end cap near the side of battery cover constitutes described sealing ring Stop structure or dense block bowl Stop structure, described pole one end be positioned at outside battery cover is removably connected with pole retaining mechanism, described pole retaining mechanism constitutes described dense block bowl Stop structure or sealing ring Stop structure.
5. battery cover plate device as claimed in claim 3, it is characterized in that, be provided with flat shim between described dense block bowl and dense block bowl Stop structure, described flat shim has the pad front end face with dense block bowl rear end face snug fit.
6. battery cover plate device as claimed in claim 4, it is characterized in that, described pole end cap is fixedly connected with collector away from one end of battery cover, and described collector has the pole piece weld part for welding battery pole piece.
7. battery cover plate device as claimed in claim 6, it is characterized in that, described collector has the U-type groove of opening towards battery pole piece, and the cell wall of described U-type groove constitutes described pole piece weld part.
8. battery cover plate device as claimed in claim 1, it is characterized in that, affiliated battery cover has the pole through hole for wearing pole, and described pole through-hole wall is provided with the first annular step surface near one end of sealing ring, and the outside diameter of described first annular step surface is equal with sealing ring external diameter.
9. battery cover plate device as claimed in claim 8, it is characterized in that, described pole through-hole wall is provided with the second annular table terrace near one end of sealing drum, and the outside diameter of described second annular table terrace is equal with sealing drum outer circumference diameter.
10. a battery, is characterized in that, uses the battery cover plate device as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348904.3U CN204632815U (en) | 2015-05-26 | 2015-05-26 | A kind of battery cover plate device and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348904.3U CN204632815U (en) | 2015-05-26 | 2015-05-26 | A kind of battery cover plate device and battery |
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| Publication Number | Publication Date |
|---|---|
| CN204632815U true CN204632815U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520348904.3U Active CN204632815U (en) | 2015-05-26 | 2015-05-26 | A kind of battery cover plate device and battery |
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| Country | Link |
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| CN (1) | CN204632815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118935A (en) * | 2015-05-26 | 2015-12-02 | 新乡市超力新能源有限公司 | Battery cover plate unit and battery |
-
2015
- 2015-05-26 CN CN201520348904.3U patent/CN204632815U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118935A (en) * | 2015-05-26 | 2015-12-02 | 新乡市超力新能源有限公司 | Battery cover plate unit and battery |
| CN105118935B (en) * | 2015-05-26 | 2018-05-04 | 新乡市超力新能源有限公司 | A kind of battery cover plate device and battery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 453003 No. 4 Hualan Avenue, Xinxiang Hi-tech Development Zone, Henan Province Patentee after: Henan Chaoli New Energy Co., Ltd. Address before: 453003 No. 4 Hualan Avenue, Xinxiang Hi-tech Development Zone, Henan Province Patentee before: XINXIANG CHAOLI NEW ENERGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |