CN203617360U - Ceramic sealing ring, battery cover plate component and battery - Google Patents
Ceramic sealing ring, battery cover plate component and battery Download PDFInfo
- Publication number
- CN203617360U CN203617360U CN201320777753.4U CN201320777753U CN203617360U CN 203617360 U CN203617360 U CN 203617360U CN 201320777753 U CN201320777753 U CN 201320777753U CN 203617360 U CN203617360 U CN 203617360U
- Authority
- CN
- China
- Prior art keywords
- ceramic
- ring
- seal ring
- recess
- ring body
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 19
- 239000000919 ceramic Substances 0.000 title abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 4
- 238000000429 assembly Methods 0.000 claims 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005219 brazing Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 4
- 238000005476 soldering Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PCEXQRKSUSSDFT-UHFFFAOYSA-N [Mn].[Mo] Chemical compound [Mn].[Mo] PCEXQRKSUSSDFT-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a ceramic sealing ring, a battery cover plate component and a battery. The ceramic sealing ring comprises a ring body, wherein a central hole is formed in the ring body; a concave part is arranged on at least one of the upper end surface and the lower end surface of the ring body; metalized layers, which are on the outer side of the concave part in the radial direction of the ring body, are arranged on both the upper end surface and the lower end surface of the ring body. As the concave part is arranged on at least one of the upper end surface and the lower end surface of the ring body, the ceramic sealing ring can avoid the phenomenon that brazing flux flows into the ceramic sealing ring after aluminum soldering, and is simple in structure.
Description
Technical field
The utility model relates to battery technology field, more specifically, relates to a kind of ceramic-seal ring, has the battery cover board assembly of this ceramic-seal ring and has the battery of this battery cover board assembly.
Background technology
Plate body, plastic spacer and the pole of the cover plate of at present conventional lithium-ion-power cell adopts the mode of injection moulding to be connected as a single entity, and plastics occur long-term use the problem that the life-span is short as cell sealing insulating material.And ceramic cover plate using pottery as sealed insulating material adopts metallized ceramic and rivet pole and plate body to weld together, the metallization material of pottery its anticorrosive property in the long-term use of battery also has problems, and has shortened the life-span of lithium-ion-power cell.
Utility model content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, an object of the present utility model is to propose a kind of simple in structure, can avoid aluminium soldering after brazing flux trickling to inner, be difficult to the ceramic-seal ring cleaning.
Another object of the present utility model is to propose a kind of battery cover board assembly with above-mentioned ceramic-seal ring.
Another object of the present utility model is to propose a kind of battery with above-mentioned battery cover board assembly.
According to ceramic-seal ring of the present utility model, comprise: ring body, described ring body has centre bore, at least one in upper surface and the lower surface of described ring body is provided with recess, on the upper surface of described ring body and lower surface, be equipped with described ring body radially on be positioned at the metal layer in described recess outside.
According to ceramic-seal ring of the present utility model, at least one in upper surface and the lower surface of ring body, be provided with recess, can avoid after aluminium soldering brazing flux trickling to inner, simple in structure.
In addition, can also there is following additional technical characterictic according to the ceramic-seal ring of the utility model above-described embodiment:
According to an example of the present utility model, described recess is the cannelure around described centre bore.
According to an example of the present utility model, described recess comprises multiple arc grooves, and described arc groove is along the distribution that is circumferentially spaced apart from each other of described ring body.
According to an example of the present utility model, described recess comprises multiple blind holes, multiple described blind holes being circumferentially spaced apart from each other around described ring body.
According to an example of the present utility model, described metal layer is annular.
According to an example of the present utility model, the periphery edge of the contiguous described ring body of described metal layer.
According to an example of the present utility model, the upper surface of described ring body and lower surface are equipped with described recess, recess the axially aligning along described ring body on the recess on described upper surface and described lower surface.
According to an example of the present utility model, described centre bore comprises the first hole section and the second hole section, and the radial dimension of described the first hole section is less than the radial dimension of described the second hole section, and described the second hole section is positioned at least one end of described the first hole section.
According to an example of the present utility model, on described metal layer, be also provided with metal protection layer.
According to an example of the present utility model, the degree of depth of described recess be more than or equal to 0.5mm and be less than or equal to described ring body thickness 1/2.
According to an example of the present utility model, described recess is 0.3mm-2mm at the width in the radial direction of described ring body.
According to battery cover board assembly of the present utility model, comprising: main body cover plate, described main body cover plate is provided with fairlead; Electrode terminal, described electrode terminal comprises pole and the polar cap extending radially outwardly from described pole along described pole; Ceramic-seal ring, described ceramic-seal ring is the ceramic-seal ring described in above-mentioned any one, the lower end of described pole is passed described ceramic-seal ring and is stretched out from the lower surface of described main body cover plate, and described ceramic-seal ring is located between described main body cover plate and described polar cap and respectively and welds with described main body cover plate and described polar cap.
According to an example of the present utility model, described battery cover board assembly also comprises ring disk, described ring disk coordinates with described fairlead, the lower end of described pole is successively through described ceramic-seal ring and described ring disk, and described ceramic-seal ring is located between described ring disk and described polar cap and respectively and welds with described ring disk and described polar cap.
According to an example of the present utility model, described battery cover board assembly also comprises sealing ring, and described sealing ring is engaged in described ring disk and the upper end of described sealing ring and the lower surface of described ceramic-seal ring contact.
According to an example of the present utility model, the lower end of described pole is provided with brace.
According to battery of the present utility model, comprise the battery cover board assembly described in above-mentioned any one.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is according to the schematic diagram of the ceramic-seal ring of an embodiment of the utility model; With
Fig. 2 is according to the schematic diagram of the battery cover board assembly of another embodiment of the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is less than Second Characteristic.
Describe in detail according to the battery cover board assembly of the utility model embodiment below with reference to accompanying drawing.
As shown in Figure 1, according to battery cover board assembly of the present utility model, comprising: main body cover plate 1, ceramic-seal ring 3 and electrode terminal 4.
Particularly, main body cover plate 1 is provided with fairlead 11.
The lower end of pole 41 is passed ceramic-seal ring 3 and is stretched out from the lower surface of main body cover plate 1.Ceramic-seal ring 3 is located between main body cover plate 1 and polar cap 42 and respectively and welds with main body cover plate 1 and polar cap 42.
Advantageously, described battery cover board assembly also comprises ring disk 2.Ring disk 2 coordinates with fairlead 11.The lower end of pole 41 is successively through ceramic-seal ring 3 and ring disk 2, and ceramic-seal ring 3 is located between ring disk 2 and polar cap 42 and respectively and welds with ring disk 2 and polar cap 42.
Advantageously, described battery cover board assembly also comprises sealing ring 6.Sealing ring 6 is engaged in ring disk 2 and the upper end of sealing ring 6 contacts with the lower surface of ceramic-seal ring 3.Further, according to an example of the present utility model, the lower end of electrode terminal 4 is provided with brace 5.
Describe in detail according to ceramic-seal ring of the present utility model below with reference to accompanying drawing.
As shown in Figure 1, according to ceramic-seal ring 3 of the present utility model, comprising: ring body 30.
Specifically, ring body 30 has centre bore 301.Upper (as shown in Figure 1 arrow on the indicated direction) end face of ring body 30 and under at least one in (as shown in Figure 1 arrow under indicated direction) end face be provided with recess.On the upper surface of ring body 30 and lower surface, be equipped with ring body radially on be positioned at the metal layer 304,305 in described recess outside.Metal layer 304,305 can be annular.The periphery edge of metal layer 304,305 contiguous ring bodies 30.Advantageously, on metal layer, be also provided with metal protection layer (not shown).Be understandable that, described metal protection layer can be nickel coating, zinc coat or sputtered aluminum layer.
Here it should be noted that, metal layer can adopt traditional molybdenum manganese metal method to form, for being weldingly connected with parts such as electrode terminal 4, the ring disk 2 etc. of battery cover board assembly.This is understandable to those skilled in the art.
According to ceramic-seal ring of the present utility model, in at least one in upper surface and the lower surface of ring body, be provided with recess, after can avoiding aluminium soldering, brazing flux trickling is to inner, be difficult to clean and lengthened the distance of ring disk 2 or metal layer 304 or 305 to electrode terminal 4, thereby improve its creepage distance, improve its breakdown voltage resistant ability, simple in structure.
Advantageously, described recess is the cannelure 302,303 around centre bore 301.Advantageously, described recess can comprise multiple arc grooves, and described arc groove is along the distribution that is circumferentially spaced apart from each other of ring body 30.Advantageously, described recess can comprise multiple blind holes, multiple described blind holes being circumferentially spaced apart from each other around ring body 30.
Advantageously, according to an example of the present utility model, the upper surface of ring body 30 is provided with the recess such as cannelure 302, and the lower surface of ring body 30 is provided with such as cannelure 303 recesses.Cannelure 302 on upper surface and the cannelure 303 on lower surface align along axially (as shown in Figure 1 above-below direction) of ring body 30.
According to an example of the present utility model, centre bore 301 comprises the first hole section 3011 and the second hole section 3012,3013.The radial dimension of the first hole section 3011 is less than the radial dimension of the second hole section 3012,3013.The second hole section 3012,3013 is positioned at least one end of the first hole section 3011.; can only form the second hole section 3012 in the upper end of the first hole section 3011; also can only form the second hole section 3013 in the lower end of the first hole section 3011, or form the second hole section 3012 in the upper end of the first hole section 3011 and form the second hole section 3013 in the lower end of the first hole section 3011.Thus, can between the end face of ring body 30 and cannelure 302,303, form drop, avoid in the time forming metal layer, metal brushes in cannelure 302,303 by mistake.
According to an example of the present utility model, the degree of depth of cannelure 302,303 be more than or equal to 0.5mm and be less than or equal to ring body 30 thickness 1/2.Cannelure 302,303 is 0.3mm-2mm at the width in the radial direction of ring body 30.
Concrete shape for ceramic-seal ring is not particularly limited, and for example, the cross section of ring body 30 can be annulus, elliptical ring or straight-flanked ring., the cross section of ring disk 2, sealing ring 6 can be also annulus, elliptical ring or the straight-flanked ring corresponding with ring body 30.
The material of ceramic-seal ring 3 can adopt Al
2o
3, the pottery such as AlN, BN, BeO.
The material of sealing ring 6 can adopt the plastic materials such as Ethylene Propylene Terpolymer, fluorubber or PFA, PTFE.
According to battery cover board assembly of the present utility model, ceramic-seal ring 3 is welded together to form a sealing system with the flange 41 of ring disk 2 and electrode terminal 4 respectively in two ends after metallization, and welding material covers metalized portion.Above-mentioned electrode terminal 4 is through ceramic-seal ring 3, flange 41 welds with ceramic-seal ring 3, sealing ring 6 seals up the welding position of electrode terminal 4 and ring disk 2 and ceramic-seal ring 3, brace 5 press seal circles 6, and laser welding is on electrode terminal 4, make it reach isolation welding position and contact with the direct of battery system, and as battery drainage body.Thus, the main body cover plate 1 that the brazing material originally just with decay resistance is covered has the longer life-span, thereby has extended the battery life that is subject to battery cover board assembly age limit.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in the situation that not departing from principle of the present utility model and aim in scope of the present utility model, modification, replacement and modification.
Claims (16)
1. a ceramic-seal ring, it is characterized in that, comprise: ring body, described ring body has centre bore, at least one in upper surface and the lower surface of described ring body is provided with recess, on the upper surface of described ring body and lower surface, be equipped with described ring body radially on be positioned at the metal layer in described recess outside.
2. ceramic-seal ring according to claim 1, is characterized in that, described recess is the cannelure around described centre bore.
3. ceramic-seal ring according to claim 1, is characterized in that, described recess comprises multiple arc grooves, and described arc groove is along the distribution that is circumferentially spaced apart from each other of described ring body.
4. ceramic-seal ring according to claim 1, is characterized in that, described recess comprises multiple blind holes, multiple described blind holes being circumferentially spaced apart from each other around described ring body.
5. ceramic-seal ring according to claim 1, is characterized in that, described metal layer is annular.
6. ceramic-seal ring according to claim 1, is characterized in that, the periphery edge of the contiguous described ring body of described metal layer.
7. ceramic-seal ring according to claim 1, is characterized in that, the upper surface of described ring body and lower surface are equipped with described recess, recess the axially aligning along described ring body on the recess on described upper surface and described lower surface.
8. according to the ceramic-seal ring described in any one in claim 1-7, it is characterized in that, described centre bore comprises the first hole section and the second hole section, and the radial dimension of described the first hole section is less than the radial dimension of described the second hole section, and described the second hole section is positioned at least one end of described the first hole section.
9. ceramic-seal ring according to claim 1, is characterized in that, is also provided with metal protection layer on described metal layer.
10. ceramic-seal ring according to claim 1, is characterized in that, the degree of depth of described recess be more than or equal to 0.5mm and be less than or equal to described ring body thickness 1/2.
11. ceramic-seal rings according to claim 1, is characterized in that, described recess is 0.3mm-2mm at the width in the radial direction of described ring body.
12. 1 kinds of battery cover board assemblies, is characterized in that, comprising:
Main body cover plate, described main body cover plate is provided with fairlead;
Electrode terminal, described electrode terminal comprises pole and the polar cap extending radially outwardly from described pole along described pole;
Ceramic-seal ring, described ceramic-seal ring is according to the ceramic-seal ring described in any one in claim 1-11, the lower end of described pole is passed described ceramic-seal ring and is stretched out from the lower surface of described main body cover plate, and described ceramic-seal ring is located between described main body cover plate and described polar cap and respectively and welds with described main body cover plate and described polar cap.
13. battery cover board assemblies according to claim 12, it is characterized in that, also comprise ring disk, described ring disk coordinates with described fairlead, the lower end of described pole is successively through described ceramic-seal ring and described ring disk, and described ceramic-seal ring is located between described ring disk and described polar cap and respectively and welds with described ring disk and described polar cap.
14. battery cover board assemblies according to claim 13, is characterized in that, also comprise sealing ring, and described sealing ring is engaged in described ring disk and the upper end of described sealing ring and the lower surface of described ceramic-seal ring contact.
15. battery cover board assemblies according to claim 13, is characterized in that, the lower end of described pole is provided with brace.
16. 1 kinds of batteries, is characterized in that, comprise according to the battery cover board assembly described in any one in claim 12-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777753.4U CN203617360U (en) | 2013-11-29 | 2013-11-29 | Ceramic sealing ring, battery cover plate component and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777753.4U CN203617360U (en) | 2013-11-29 | 2013-11-29 | Ceramic sealing ring, battery cover plate component and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617360U true CN203617360U (en) | 2014-05-28 |
Family
ID=50769984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320777753.4U Expired - Lifetime CN203617360U (en) | 2013-11-29 | 2013-11-29 | Ceramic sealing ring, battery cover plate component and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576161A (en) * | 2016-02-03 | 2016-05-11 | 深圳市三讯电子有限公司 | Electrode terminal, power battery cover plate assembly and power battery |
| CN113054330A (en) * | 2019-12-26 | 2021-06-29 | 比亚迪股份有限公司 | Battery module and power battery pack and electric automobile with same |
-
2013
- 2013-11-29 CN CN201320777753.4U patent/CN203617360U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576161A (en) * | 2016-02-03 | 2016-05-11 | 深圳市三讯电子有限公司 | Electrode terminal, power battery cover plate assembly and power battery |
| CN113054330A (en) * | 2019-12-26 | 2021-06-29 | 比亚迪股份有限公司 | Battery module and power battery pack and electric automobile with same |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |