CN105633309A - Electrode terminal, power battery cover plate assembly and power battery - Google Patents
Electrode terminal, power battery cover plate assembly and power battery Download PDFInfo
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- CN105633309A CN105633309A CN201610075982.XA CN201610075982A CN105633309A CN 105633309 A CN105633309 A CN 105633309A CN 201610075982 A CN201610075982 A CN 201610075982A CN 105633309 A CN105633309 A CN 105633309A
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- insulator
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- pole
- ring flange
- electrode terminal
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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
- H01M50/561—Hollow metallic terminals, e.g. terminal bushings
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- 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
- 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
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses an electrode terminal, a power battery cover plate assembly and a power battery. The power battery cover plate assembly comprises a cover plate body, an insulation body, a connection body, a flange disc and a pole post, wherein a through hole is formed in the cover plate body along a thickness direction, one end of the connection body extends into the through hole and is hermetically welded with the cover plate body, the connection body is a cavity body with openings at the two ends, one end of the insulation body adaptively extends into the connection body and is hermetically welded with the connection body, a penetrating hole is formed in the insulation body along an axial direction of the connection body, the pole post adaptively passes through the penetrating hole and passes through the connection body, the flange disc sleeves the pole post and is arranged on one side, near to the cover plate body, of the insulation body, and the flange disc is hermetically welded with the pole post and the insulation body. The power battery cover plate and the insulation body are hermetically connected together by the connection body and then the insulation body and the pole post are hermetically connected together by the flange disc, and thus, the power battery cover plate assembly is high in sealing effect and simple in structure, and is convenient to produce.
Description
Technical field
The present invention relates to electrokinetic cell field, especially relate to a kind of electrode terminal, power battery cover board component and electrokinetic cell.
Background technology
Lithium-ion-power cell, as the energy output critical component of electric motor car (pure electronic and mixed dynamic), is subject to the new forms of energy producers such as each auto vendor, battery producer and energy storage and is paid attention to. And cover plate of power battery is the core component of battery structure. The cover plate of general lithium-ion-power cell is made up of cover board body, plastic spacer, pole and riveting sheet, after adopting injection moulding, the mode of riveted joint is connected as a single entity, wherein plastics are as the sealed insulating material between cover board body and battery electrode column, plastics use in varying environment and extreme environment there will be contractions, aging, riveted joint is loosening etc. causes that battery leakage causes safety problem.
In order to avoid plastics can go out safe problem as cell sealing and insulant use at different conditions, adopt ceramic ring as cell sealing and insulant. Pottery belongs to environment-friendly materials, has long service life, will not be aging, indeformable, and aboundresources, the features such as cost is low.
In manufacturing process, there is terminal post complex manufacturing technology in existing electrokinetic cell ceramic cover plate assembly, plane-welding is unstable, thus causing power battery structure high cost, and the problem of welding off normal.
Summary of the invention
The main purpose of the present invention is for providing a kind of simple in construction, electrode terminal, cover plate of power battery and the electrokinetic cell that sealing property is high.
In order to realize foregoing invention purpose, the present invention proposes a kind of electrode terminal, including insulator, connector, ring flange and pole;
Described connector is the cavity body of both ends open, and one end of described insulator is stretched in connector adaptedly, and welds with connector sealing;
Described insulator has perforation along the axially arranged of connector, and described pole runs through described perforation adaptedly and arranges, and pole runs through described connector;
Described ring flange is socketed on pole, and is positioned at the insulator side near connector, and described ring flange welds with electrode column sealing, also welds with insulator seal.
Further, described electrode terminal also includes block, and this block is fixedly sheathed in described pole, is positioned at the described insulator side away from ring flange.
Further, the protruding outside of described connector has the chimb around connector.
Further, described connector is provided with inner process near one end inwall of insulator, and described connector is welded with insulator seal by inner process.
Further, the arranged outside of described insulator is around the boss of pole, and described insulator is sticked in described connector by boss.
Further, described pole arranging the lug around pole, described pole is welded with flangeseal by lug.
Further, described lug is positioned at the ring flange side away from insulator, and ring flange arranges the depressed part of corresponding lug, and ring flange is sticked in lug by depressed part adaptation.
Further, described ring flange arranges the zigzag boss around pole towards the one side of insulator, and ring flange is provided by the position of zigzag boss and welds with insulator seal.
The present invention also provides for a kind of power battery cover board component, including cover board body and electrode terminal;
Described electrode terminal includes insulator, connector, ring flange and pole;
Described connector is the cavity body of both ends open, and one end of described insulator is stretched in connector adaptedly, and welds with connector sealing;
Described insulator has perforation along the axially arranged of connector, and described pole runs through described perforation adaptedly and arranges, and pole runs through described connector;
Described ring flange is socketed on pole, and is positioned at the insulator side near connector, and described ring flange welds with electrode column sealing, also welds with insulator seal;
Described cover board body through-thickness arranges through hole, and described connector stretches into through hole away from one end of insulator, and welds with cover board body sealing.
Further, described electrode terminal also includes block, and this block is fixedly sheathed in described pole, is positioned at the described insulator side away from ring flange.
Further, the protruding outside of described connector has the chimb around connector, and described connector is sticked in described cover board body by chimb.
Further, described connector is provided with inner process near one end inwall of insulator, and described connector is welded with insulator seal by inner process.
Further, the arranged outside of described insulator is around the boss of pole, and described insulator is sticked in described connector by boss.
Further, described pole arranging the lug around pole, described pole is welded with flangeseal by lug.
Further, described lug is positioned at the ring flange side away from insulator, and ring flange arranges the depressed part of corresponding lug, and ring flange is sticked in lug by depressed part adaptation.
Further, described ring flange arranges the zigzag boss around pole towards the one side of insulator, and ring flange is provided by the position of zigzag boss and welds with insulator seal.
The present invention also provides for a kind of electrokinetic cell, and including pole piece, electrolyte, housing and cover plate of power battery, described electrolyte, pole piece are contained in the accommodation space of housing and cover plate of power battery formation;
Described power battery cover board component includes cover board body, insulator, connector, ring flange and pole;
Described connector is the cavity body of both ends open, and one end of described insulator is stretched in connector adaptedly, and welds with connector sealing;
Described insulator has perforation along the axially arranged of connector, and described pole runs through described perforation adaptedly and arranges, and pole runs through described connector;
Described ring flange is socketed on pole, and is positioned at the insulator side near connector, is positioned at the insulator side near cover board body, and described ring flange welds with electrode column sealing, also welds with insulator seal;
Described cover board body through-thickness arranges through hole, and described connector stretches into through hole away from one end of insulator, and welds with cover board body sealing.
Further, described electrode terminal also includes block, and this block is fixedly sheathed in described pole, is positioned at the described insulator side away from ring flange.
Further, the protruding outside of described connector has the chimb around connector, and described connector is sticked in described cover board body by chimb.
Further, described connector is provided with inner process near one end inwall of insulator, and described connector is welded with insulator seal by inner process.
Further, the arranged outside of described insulator is around the boss of pole, and described insulator is sticked in described connector by boss.
Further, described pole arranging the lug around pole, described pole is welded with flangeseal by lug.
Further, described lug is positioned at the ring flange side away from insulator, and ring flange arranges the depressed part of corresponding lug, and ring flange is sticked in lug by depressed part adaptation.
Further, described ring flange arranges the zigzag boss around pole towards the one side of insulator, and ring flange is provided by the position of zigzag boss and welds with insulator seal.
The electrode terminal of the present invention, cover plate of power battery and electrokinetic cell, first being welded with insulator seal by connector, then pass through ring flange by what seal between insulator and pole and be integrally connected formation electrode terminal, this kind of electrode terminal structure is simple, good airproof performance, and long service life; Power battery cover board component uses above-mentioned electrode terminal, by connector by sealing welding between cover plate of power battery and electrode terminal, seals welding procedure simple, good sealing effect, and simple in construction is convenient for production, long service life; And after electrokinetic cell uses above-mentioned power battery cover board component, there is the feature of long service life equally.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electrode terminal of one embodiment of the invention;
Fig. 2 is the B-B profile of Fig. 1;
Fig. 3 is the structural representation of the connector of one embodiment of the invention;
Fig. 4 is the interface schematic diagram of the connector of one embodiment of the invention;
Fig. 5 is the structural representation of the insulator of one embodiment of the invention;
Fig. 6 is the interface schematic diagram of the pole of one embodiment of the invention;
Fig. 7 is the pole structural representation with ring flange of one embodiment of the invention;
Fig. 8 is the interface schematic diagram of the ring flange of one embodiment of the invention;
Fig. 9 is the schematic diagram of the power battery cover board component of one embodiment of the invention;
Figure 10 is the A-A generalized section of Fig. 9;
Figure 11 is the structural representation of the electrokinetic cell of one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1-Fig. 8, the embodiment of the present invention proposes a kind of electrode terminal 101, including insulator 20, connector 30, ring flange 40 and pole 50; Described connector 30 is the cavity body of both ends open, and one end of described insulator 20 is stretched in connector 30 adaptedly, and welds with connector 30 sealing; Described insulator 20 has perforation 22 along the axially arranged of connector 30, and described pole 50 runs through described perforation 22 adaptedly and arranges, and pole 50 runs through described connector 30; Described ring flange 40 is socketed on pole 50, and is positioned at the insulator 20 side near connector 30, and described ring flange 40 seals with pole 50 and welds, and also seals with insulator 20 and welds.
In the present embodiment, above-mentioned sealing welding, firm welding and good leak tightness. Above-mentioned insulator 20 is generally ceramic ring, and pottery has long service life, will not be aging, indeformable, and aboundresources, the features such as cost is low. Above-mentioned connector 30 is a kind of metal material, general identical with the material of cover board body 10, facilitates being welded to each other between both. Above-mentioned ring flange 40 is a kind of metal material equally, general identical with the material of pole 50, convenient welding between the two. Connector 30 is stretched in one end of above-mentioned insulator 20, and then pole 50 runs through insulator 20 along the axially arranged perforation of connector 30, then insulator 20 obviously can and connector 30 between there is gap.
In the present embodiment, above-mentioned electrode terminal 101 also includes block 60, and this block 60 is fixedly sheathed in described pole 50, is positioned at the described insulator 20 side away from ring flange 40. Above-mentioned block 60 can protect insulator 20, it is prevented that insulator 20 is crack damage by foreign object strike etc., and its material is identical with the material of pole 50, convenient welding between the two.
With reference to Fig. 3 and Fig. 4, in the present embodiment, the protruding outside of above-mentioned connector 30 has the chimb 31 around connector 30, electrode terminal is in use, connector 30 is facilitated to be sticked in described cover board body 10 by chimb 31, the convenient connector 30 that controls stretches into the degree of depth of cover board body 10, makes electrode terminal 101 be in that when cover board body assembles, and concordance is high. the lateral wall of connector 30 is with chimb 31 shape at an angle, it is generally the right angle of 90 degree, on cover board body 10, the arm of angle of through hole is also generally right angle, both are made to engage adaptedly, the spacing connector 30 of cover board body 10 moves to the internal direction of electrokinetic cell, when being welded to each other between, lateral wall typically via connector 30 is welded with the hole wall of through hole on cover board body 10, in other embodiments, chimb 31 can also be selected to weld with the contact position of cover board body 10, can also weld in the contact position of chimb 31 with cover board body 10, and the lateral wall of connector 30 welds with the hole wall of through hole on cover board body 10. in the present embodiment, above-mentioned connector 30 is provided with inner process 32 near one end inwall of insulator 20, described connector 30 is welded with insulator 20 sealing by inner process 32, the setting of inner process 32, conveniently connector 30 is welded with insulator 20, generally solder can be arranged on inner process 32, the welding procedure then passing through correspondence is welded, and owing to the existence of projection makes there is gap between connector 30 and insulator 20, connector 30 is made to have certain deformability, the STRESS VARIATION of high-temperature soldering process can be absorbed, thus improving welding yield when connector 30 welds with insulator 20.
With reference to Fig. 5, in the present embodiment, the arranged outside of above-mentioned insulator 20 is around the boss 21 of pole 50, and described insulator 20 is sticked in described connector 30 by boss 21. the lateral wall meeting shape of boss 21 and insulator 20 is at an angle, this angle is generally the right angle of 90 degree, the arm of angle of connector 30 is also generally right angle, both are made to engage adaptedly, the spacing connector 30 of insulator 20 moves to the internal direction away from electrokinetic cell, when being welded to each other between, boss 21 can be selected to weld with the contact position of insulator 20, the medial wall of connector 30 can also be selected to weld with the contact position of insulator 20, can also in the contact position of boss 21 with insulator 20, and the medial wall of connector 30 all welds with the contact position of insulator 20.
With reference to Fig. 6, in the present embodiment, above-mentioned pole 50 arranging the lug 51 around pole 50, described pole 50 is welded with ring flange 40 sealing by lug 51. Lug 51 can provide bigger solder side to be connected with ring flange 40, improves firm welding degree between the two, it is also possible to improves sealing effectiveness. In one embodiment, above-mentioned lug 51 is positioned at the ring flange 40 side away from insulator 20, and ring flange 40 arranges the depressed part 43 of corresponding lug 51, and ring flange 40 is sticked in lug 51 by depressed part 43 adaptation. The setting of depressed part 43, it is possible to improve the welding effect of ring flange 40 and lug 51.
With reference to Fig. 7 and Fig. 8, in the present embodiment, described ring flange 40 arranges the zigzag boss 41 around pole 50 towards the one side of insulator 20, and ring flange 40 is provided by the position of zigzag boss 41 and welds with insulator 20 sealing. Zigzag boss 41 has interlocking, can increase bonding area, strengthens the weld strength of ring flange 40 and insulator 20. Above-mentioned zigzag boss 41 can arrange a plurality of, it is possible to according to the specifically used environment of ring flange 40 and insulator 20 and welding surroundings, selects the zigzag boss 41 of suitable bar number. General 0.1��0.2 millimeter of height of zigzag boss 41.
In the present embodiment, described ring flange 40 arranges buffer part 42. Buffer part 42 can reduce the insulators such as ceramic ring 20 spoilage in the process of welding or use. Such as because ring flange 40 is circular, so its cross section or include two symmetrical cross sections, and wherein the cross section of side is Z-type, so the interface of opposite side is for falling Z-type, it is believed that the oblique line of Z-type is buffer part 42, can bend further along bending place when stressed, to improve the action time of power, reduction power acts on the effect of insulator 20, plays cushioning effect.
In the present embodiment, above-mentioned insulator 20 arranges groove near the side of ring flange 40, described ring flange 40 adaptation be sticked in groove. The arranging of groove can improve the welding effect of ring flange 40 and insulator 20.
The electrode terminal 101 of the present embodiment, first sealed with insulator 20 by connector 30 and weld, then pass through ring flange 40 and be integrally connected formation electrode terminal 101 by what seal between insulator 20 and pole 50, this kind of electrode terminal 101 simple in construction, good airproof performance, and long service life, the convenient cover board body 10 with electrokinetic cell seals and welds.
With reference to Fig. 9 and Figure 10, the embodiment of the present invention proposes a kind of power battery cover board component 100, including cover board body 10 and electrode terminal 101; Described electrode terminal 101 includes insulator 20, connector 30, ring flange 40 and pole 50; Described cover board body 10 through-thickness arranges through hole, and through hole is stretched in one end of described connector 30, and welds with cover board body 10 sealing; Described connector 30 is the cavity body of both ends open 33, and one end of described insulator 20 is stretched in connector 30 adaptedly, and welds with connector 30 sealing; Described insulator 20 has perforation 22 along the axially arranged of connector 30, and described pole 50 runs through described perforation 22 adaptedly and arranges, and pole 50 runs through described connector 30; Described ring flange 40 is socketed on pole 50, and is positioned at the insulator 20 side near connector 30, is namely positioned at the insulator 20 side near cover board body 10, and described ring flange 40 seals with pole 50 and welds, and also seals with insulator 20 and welds.
In the present embodiment, above-mentioned sealing welding, firm welding and good leak tightness. Above-mentioned insulator 20 is generally ceramic ring, and pottery has long service life, will not be aging, indeformable, and aboundresources, the features such as cost is low. Above-mentioned connector 30 is a kind of metal material, general identical with the material of cover board body 10, facilitates being welded to each other between both. Above-mentioned ring flange 40 is a kind of metal material equally, general identical with the material of pole 50, convenient welding between the two. Connector 30 is stretched in one end of above-mentioned insulator 20, and then pole 50 runs through insulator 20 along the axially arranged perforation of connector 30, then insulator 20 obviously can and connector 30 between there is gap.
In the present embodiment, above-mentioned electrode terminal 101 also includes block 60, and this block 60 is fixedly sheathed in described pole 50, is positioned at the described insulator 20 side away from cover board body 10. Above-mentioned block 60 can protect insulator 20, it is prevented that insulator 20 is crack damage by foreign object strike etc., and its material is identical with the material of pole 50, convenient welding between the two.
With reference to Fig. 3 and Fig. 4, in the present embodiment, the protruding outside of above-mentioned connector 30 has the chimb 31 around connector 30, electrode terminal is in use, connector 30 is facilitated to be sticked in described cover board body 10 by chimb 31, the convenient connector 30 that controls stretches into the degree of depth of cover board body 10, makes electrode terminal 101 be in that when cover board body assembles, and concordance is high. the lateral wall of connector 30 is with chimb 31 shape at an angle, it is generally the right angle of 90 degree, on cover board body 10, the arm of angle of through hole is also generally right angle, both are made to engage adaptedly, the spacing connector 30 of cover board body 10 moves to the internal direction of electrokinetic cell, when being welded to each other between, lateral wall typically via connector 30 is welded with the hole wall of through hole on cover board body 10, in other embodiments, chimb 31 can also be selected to weld with the contact position of cover board body 10, can also weld in the contact position of chimb 31 with cover board body 10, and the lateral wall of connector 30 welds with the hole wall of the through hole on cover board body 10.
In the present embodiment, above-mentioned connector 30 is provided with inner process 32 near one end inwall of insulator 20, described connector 30 is welded with insulator 20 sealing by inner process 32, the setting of inner process 32, conveniently being welded with insulator 20 by connector 30, generally can be arranged on inner process 32 by solder, the welding procedure then passing through correspondence is welded, and owing to the existence of projection makes to have between connector 30 and insulator 20 gap, alleviate the STRESS VARIATION of high-temperature soldering process.
With reference to Fig. 5, in the present embodiment, the arranged outside of above-mentioned insulator 20 is around the boss 21 of pole 50, and described insulator 20 is sticked in described connector 30 by boss 21. the lateral wall meeting shape of boss 21 and insulator 20 is at an angle, this angle is generally the right angle of 90 degree, the arm of angle of connector 30 is also generally right angle, both are made to engage adaptedly, the spacing connector 30 of insulator 20 moves to the internal direction away from electrokinetic cell, when being welded to each other between, boss 21 can be selected to weld with the contact position of insulator 20, the medial wall of connector 30 can also be selected to weld with the contact position of insulator 20, can also in the contact position of boss 21 with insulator 20, and the medial wall of connector 30 all welds with the contact position of insulator 20.
With reference to Fig. 6, in the present embodiment, above-mentioned pole 50 arranging the lug 51 around pole 50, described pole 50 is welded with ring flange 40 sealing by lug 51. Lug 51 can provide bigger solder side to be connected with ring flange 40, improves firm welding degree between the two, it is also possible to improves sealing effectiveness. In one embodiment, above-mentioned lug 51 is positioned at the ring flange 40 side away from insulator 20, and ring flange 40 arranges the depressed part 43 of corresponding lug 51, and ring flange 40 is sticked in lug 51 by depressed part 43 adaptation. The setting of depressed part 43, it is possible to improve the welding effect of ring flange 40 and lug 51.
With reference to Fig. 7 and Fig. 8, in the present embodiment, described ring flange 40 arranges the zigzag boss 41 around pole 50 towards the one side of insulator 20, and ring flange 40 is provided by the position of zigzag boss 41 and welds with insulator 20 sealing. Zigzag boss 41 has interlocking, can increase bonding area, strengthens the weld strength of ring flange 40 and insulator 20. Above-mentioned zigzag boss 41 can arrange a plurality of, it is possible to according to the specifically used environment of ring flange 40 and insulator 20 and welding surroundings, selects the zigzag boss 41 of suitable bar number. General 0.1��0.2 millimeter of height of zigzag boss 41.
In the present embodiment, described ring flange 40 arranges buffer part 42. Buffer part 42 can reduce the insulators such as ceramic ring 20 spoilage in the process of welding or use. Such as because ring flange 40 is circular, so its cross section or include two symmetrical cross sections, and wherein the cross section of side is Z-type, so the interface of opposite side is for falling Z-type, it is believed that the oblique line of Z-type is buffer part 42, can bend further along bending place when stressed, to improve the action time of power, reduction power acts on the effect of insulator 20, plays cushioning effect.
In the present embodiment, above-mentioned insulator 20 arranges groove near the side of ring flange 40, described ring flange 40 adaptation be sticked in groove. The arranging of groove can improve the welding effect of ring flange 40 and insulator 20.
The power battery cover board component 100 of the present embodiment, it is connected to one by connector 30 by what seal between power battery cover board component 100 and insulator 20, then passes through ring flange 40 by being integrally connected of sealing between insulator 20 and pole 50, good sealing effect, simple in construction, convenient for production.
With reference to Figure 11, in the embodiment of the present invention, also providing for a kind of electrokinetic cell, including pole piece 200, electrolyte, housing 300 and power battery cover board component 100, described electrolyte, pole piece 200 are contained in the accommodation space of housing 300 and power battery cover board component 100 formation. Described power battery cover board component 100, including cover board body 10 and electrode terminal 101, electrode terminal 101 includes insulator 20, connector 30, ring flange 40 and pole 50; Described cover board body 10 through-thickness arranges through hole, and through hole is stretched in one end of described connector 30, and welds with cover board body 10 sealing; Described connector 30 is the cavity body of both ends open, and one end of described insulator 20 is stretched in connector 30 adaptedly, and welds with connector 30 sealing; Described insulator 20 has perforation 22 along the axially arranged of connector 30, and described pole 50 runs through described perforation 22 adaptedly and arranges, and pole 50 runs through described connector 30; Described ring flange 40 is socketed on pole 50, and is positioned at the insulator 20 side near connector 30, is namely positioned at the insulator 20 side near cover board body 10, and described ring flange 40 seals with pole 50 and welds, and also seals with insulator 20 and welds.
In the present embodiment, above-mentioned sealing welding, firm welding and good leak tightness. Above-mentioned insulator 20 is generally ceramic ring, and pottery has long service life, will not be aging, indeformable, and aboundresources, the features such as cost is low. Above-mentioned connector 30 is a kind of metal material, general identical with the material of cover board body 10, facilitates being welded to each other between both. Above-mentioned ring flange 40 is a kind of metal material equally, general identical with the material of pole 50, convenient welding between the two. Connector 30 is stretched in one end of above-mentioned insulator 20, and then pole 50 runs through insulator 20 along the axially arranged perforation of connector 30, then insulator 20 obviously can and connector 30 between there is gap.
In the present embodiment, above-mentioned electrode terminal 101 also includes block 60, and this block 60 is fixedly sheathed in described pole 50, is positioned at the described insulator 20 side away from cover board body 10. Above-mentioned block 60 can protect insulator 20, it is prevented that insulator 20 is crack damage by foreign object strike etc., and its material is identical with the material of pole 50, convenient welding between the two.
With reference to Fig. 3 and Fig. 4, in the present embodiment, the protruding outside of above-mentioned connector 30 has the chimb 31 around connector 30, electrode terminal is in use, connector 30 is facilitated to be sticked in described cover board body 10 by chimb 31, the convenient connector 30 that controls stretches into the degree of depth of cover board body 10, makes electrode terminal 101 be in that when cover board body assembles, and concordance is high. the lateral wall of connector 30 is with chimb 31 shape at an angle, it is generally the right angle of 90 degree, on cover board body 10, the arm of angle of through hole is also generally right angle, both are made to engage adaptedly, the spacing connector 30 of cover board body 10 moves to the internal direction of electrokinetic cell, when being welded to each other between, lateral wall typically via connector 30 is welded with the hole wall of through hole on cover board body 10, in other embodiments, chimb 31 can also be selected to weld with the contact position of cover board body 10, can also weld in the contact position of chimb 31 with cover board body 10, and the lateral wall of connector 30 welds with the hole wall of through hole on cover board body 10. .
In the present embodiment, above-mentioned connector 30 is provided with inner process 32 near one end inwall of insulator 20, described connector 30 is welded with insulator 20 sealing by inner process 32, the setting of inner process 32, conveniently connector 30 is welded with insulator 20, generally solder can be arranged on inner process 32, the welding procedure then passing through correspondence is welded, and owing to the existence of projection makes there is gap between connector 30 and insulator 20, connector 30 is made to have certain deformability, the STRESS VARIATION alleviating high-temperature soldering process can be absorbed, thus improving welding yield when connector 30 welds with insulator 20.
With reference to Fig. 5, in the present embodiment, the arranged outside of above-mentioned insulator 20 is around the boss 21 of pole 50, and described insulator 20 is sticked in described connector 30 by boss 21. the lateral wall meeting shape of boss 21 and insulator 20 is at an angle, this angle is generally the right angle of 90 degree, the arm of angle of connector 30 is also generally right angle, both are made to engage adaptedly, the spacing connector 30 of insulator 20 moves to the internal direction away from electrokinetic cell, when being welded to each other between, boss 21 can be selected to weld with the contact position of insulator 20, the medial wall of connector 30 can also be selected to weld with the contact position of insulator 20, can also in the contact position of boss 21 with insulator 20, and the medial wall of connector 30 all welds with the contact position of insulator 20.
With reference to Fig. 6, in the present embodiment, above-mentioned pole 50 arranging the lug 51 around pole 50, described pole 50 is welded with ring flange 40 sealing by lug 51. Lug 51 can provide bigger solder side to be connected with ring flange 40, improves firm welding degree between the two, it is also possible to improves sealing effectiveness. In one embodiment, above-mentioned lug 51 is positioned at the ring flange 40 side away from insulator 20, and ring flange 40 arranges the depressed part 43 of corresponding lug 51, and ring flange 40 is sticked in lug 51 by depressed part 43 adaptation. The setting of depressed part 43, it is possible to improve the welding effect of ring flange 40 and lug 51.
With reference to Fig. 7 and Fig. 8, in the present embodiment, described ring flange 40 arranges the zigzag boss 41 around pole 50 towards the one side of insulator 20, and ring flange 40 is provided by the position of zigzag boss 41 and welds with insulator 20 sealing. Zigzag boss 41 has interlocking, can increase bonding area, strengthens the weld strength of ring flange 40 and insulator 20. Above-mentioned zigzag boss 41 can arrange a plurality of, it is possible to according to the specifically used environment of ring flange 40 and insulator 20 and welding surroundings, selects the zigzag boss 41 of suitable bar number. General 0.1��0.5 millimeter of height of zigzag boss 41.
In the present embodiment, described ring flange 40 arranges buffer part 42. Buffer part 42 can reduce the insulators such as ceramic ring 20 spoilage in the process of welding or use. Such as because ring flange 40 is circular, so its cross section or include two symmetrical cross sections, and wherein the cross section of side is Z-type, so the interface of opposite side is for falling Z-type, it is believed that the oblique line of Z-type is buffer part 42, can bend further along bending place when stressed, to improve the action time of power, reduction power acts on the effect of insulator 20, plays cushioning effect.
In the present embodiment, above-mentioned insulator 20 arranges groove near the side of ring flange 40, described ring flange 40 adaptation be sticked in groove. The arranging of groove can improve the welding effect of ring flange 40 and insulator 20.
The electrokinetic cell of the present embodiment, the power battery cover board component 100 of its use is connected to one by connector 30 by what seal between power battery cover board component 100 and insulator 20, then pass through ring flange 40 by being integrally connected of sealing between insulator 20 and pole 50, good sealing effect, simple in construction, convenient for production. Electrokinetic cell long service life, safe to use.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. an electrode terminal, it is characterised in that include insulator, connector, ring flange and pole;
Described connector is the cavity body of both ends open, and one end of described insulator is stretched in connector adaptedly, and welds with connector sealing;
Described insulator has perforation along the axially arranged of connector, and described pole runs through described perforation adaptedly and arranges, and pole runs through described connector;
Described ring flange is socketed on pole, and is positioned at the insulator side near connector, and described ring flange welds with electrode column sealing, also welds with insulator seal.
2. electrode terminal according to claim 1, it is characterised in that also include block, this block is fixedly sheathed in described pole, is positioned at the described insulator side away from ring flange.
3. electrode terminal according to claim 1, it is characterised in that the protruding outside of described connector has the chimb around connector.
4. electrode terminal according to claim 1, it is characterised in that described connector is provided with inner process near one end inwall of insulator, described connector is welded with insulator seal by inner process.
5. electrode terminal according to claim 1, it is characterised in that the arranged outside of described insulator is around the boss of pole, and described insulator is sticked in described connector by boss.
6. electrode terminal according to claim 1, it is characterised in that arranging the lug around pole on described pole, described pole is welded with flangeseal by lug.
7. electrode terminal according to claim 6, it is characterised in that described lug is positioned at the ring flange side away from insulator, ring flange arranges the depressed part of corresponding lug, and ring flange is sticked in lug adaptedly by depressed part.
8. electrode terminal according to claim 1, it is characterised in that described ring flange arranges the zigzag boss around pole towards the one side of insulator, and ring flange is provided by the position of zigzag boss and welds with insulator seal.
9. a power battery cover board component, it is characterised in that include cover board body and electrode terminal;
Electrode terminal according to any one of described electrode terminal such as claim 1-8;
Described cover board body through-thickness arranges through hole, and described connector stretches into through hole away from one end of insulator, and welds with cover board body sealing.
10. an electrokinetic cell, it is characterised in that include pole piece, electrolyte, housing and power battery cover board component, described electrolyte, pole piece are contained in the accommodation space of housing and the formation of power battery cover board component;
Described power battery cover board component power battery cover board component as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075982.XA CN105633309A (en) | 2016-02-03 | 2016-02-03 | Electrode terminal, power battery cover plate assembly and power battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075982.XA CN105633309A (en) | 2016-02-03 | 2016-02-03 | Electrode terminal, power battery cover plate assembly and power battery |
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| CN105633309A true CN105633309A (en) | 2016-06-01 |
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| CN201610075982.XA Pending CN105633309A (en) | 2016-02-03 | 2016-02-03 | Electrode terminal, power battery cover plate assembly and power battery |
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Effective date of abandoning: 20240726 |