CN109950431A - A kind of band overcharges the battery battery core with the battery cover board of short-circuit protection and its application - Google Patents
A kind of band overcharges the battery battery core with the battery cover board of short-circuit protection and its application Download PDFInfo
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- CN109950431A CN109950431A CN201910148410.3A CN201910148410A CN109950431A CN 109950431 A CN109950431 A CN 109950431A CN 201910148410 A CN201910148410 A CN 201910148410A CN 109950431 A CN109950431 A CN 109950431A
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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
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Abstract
The invention discloses a kind of bands to overcharge the battery cover board with short-circuit protection, including battery cover board bottom plate, and the left and right ends of battery cover board bottom plate are respectively provided with the first groove and the second groove；It is provided with positive rubber mat in first groove, positive pressing plate is placed in positive rubber mat；Upper gasket is provided with immediately below battery cover board bottom plate；Upper gasket, battery cover board bottom plate, positive rubber mat and positive pressing plate pass through positive closing-up；Negative insulation rubber mat is provided in second groove；Cathode pressing plate is placed in negative insulation rubber mat；Upper gasket right end, battery cover board bottom plate right end, negative insulation rubber mat and cathode pressing plate pass through cathode closing-up；The right end of first groove is welded with pressure-sensitive diaphragm；Pressure-sensitive diaphragm bottom is in contact compression with positive rivet top surface.The invention also discloses a kind of battery battery cores.The present invention can reduce the requirement to battery core consistency, effectively carry out security protection to battery battery core and by the battery modules that multiple electric core of lithium ion power battery are connected in series or in parallel.
Description
Technical field
The present invention relates to battery technology fields, overcharge the battery cover board with short-circuit protection more particularly to a kind of band and its answer
Battery battery core.
Background technique
Currently, lithium-ion-power cell has, safe, high-efficient, pollution-free, specific energy is high, abundant raw materials, circulation make
With often, storage time is long the advantages that, not only on a portable electronic device such as mobile phone, DV and hand-held electric
Brain is used widely, and to be widely used in electric car, electric bicycle and electric tool etc. large and medium-sized electronic sets
Standby aspect, thus it is higher and higher to the safety requirements of lithium ion battery.
For the battery modules being connected in series or in parallel by multiple electric core of lithium ion power battery, since battery battery core has
Energy it is increasing, the consistency between multiple battery cores is poor, in terms of safety test test, overcharge, short circuit, high temperature work
Serious security risk is easy to produce under condition.
In view of this, can reduce the requirement to battery core consistency, effectively there is an urgent need to develop a kind of technology out at present
Security protection is carried out to electric core of lithium ion power battery, and is connected in series or in parallel to by multiple electric core of lithium ion power battery
Battery modules carry out security protection, and then improve user to the use feeling of battery product.
Summary of the invention
In view of this, overcharging the electricity with the battery cover board of short-circuit protection and its application the object of the present invention is to provide a kind of band
Pond battery core can reduce the requirement to battery core consistency, effectively carry out security protection to electric core of lithium ion power battery, and
Security protection is carried out to the battery modules being connected in series or in parallel by multiple electric core of lithium ion power battery, and then improves user couple
The use feeling of battery product, is of great practical significance.
For this purpose, the present invention provides a kind of bands to overcharge the battery cover board with short-circuit protection, the battery cover including cross direction profiles
The left and right ends upper surface of board bottom plate, the battery cover board bottom plate is respectively provided with the first groove and the second groove；
It is provided with rectangle, hollow positive rubber mat in first groove, is placed with positive extreme pressure in the anode rubber mat
Plate, the anode pressing plate are in contact with first groove top surface；
The Upper gasket of cross direction profiles is provided with immediately below the battery cover board bottom plate；
The left and right ends consistency from top to bottom of the battery cover board bottom plate and Upper gasket；
The left end of the Upper gasket, the left end of battery cover board bottom plate, positive rubber mat and positive pressing plate pass through a positive riveting
Closing up is together；
Rectangle, non-hollow negative insulation rubber mat is provided in second groove；
Cathode pressing plate is placed in the negative insulation rubber mat；
The right end of the Upper gasket, the right end of battery cover board bottom plate, negative insulation rubber mat and cathode pressing plate are negative by one
Pole closing-up is together；
The right end of first groove is provided with a pressure-sensitive diaphragm welding hole, is welded with pressure membrane on the pressure-sensitive diaphragm welding hole
Piece；
The left end of the Upper gasket is provided with pressure-sensitive diaphragm via hole in the following position directly of pressure-sensitive diaphragm；
After the bottom of pressure-sensitive diaphragm passes through pressure-sensitive diaphragm via hole, be in contact compression with the top surface of positive rivet.
Wherein, the left end of battery cover board bottom plate is connected with a hollow positive sealing ring by injection molding manner；
The left end of first groove is provided with the first positive sealing ring receiving hole, and the upper end of positive sealing ring is embedded into the first anode
In sealing ring receiving hole；
The left end of Upper gasket is provided with the second positive sealing ring receiving hole in the underface of the first positive sealing ring receiving hole；
The lower end of positive sealing ring is embedded into the second positive sealing ring receiving hole.
Wherein, the positive rivet includes positive rivet nut and positive blind rivet；
The anode blind rivet is vertically installed at the top of the left end of the positive rivet nut；
The anode blind rivet is inserted into positive sealing ring；
After the anode blind rivet runs through the positive sealing ring in Upper gasket and battery cover board bottom plate from the bottom up, and just
The top surface of extreme pressure plate rivets together.
Wherein, after the top surface riveted of the positive blind rivet of positive rivet and positive pressing plate, also progress optical-fiber laser weldering welding.
Wherein, the right end of battery cover board bottom plate is connected with a hollow cathode sealing ring by injection molding manner；
The left end of second groove is provided with the first cathode sealing ring receiving hole, and the upper end of cathode sealing ring is embedded into the first cathode
In sealing ring receiving hole；
The right end of Upper gasket is provided with the second cathode sealing ring receiving hole in the underface of the first cathode sealing ring receiving hole；
The lower end of cathode sealing ring is embedded into the second cathode sealing ring receiving hole.
Wherein, the cathode rivet includes cathode rivet nut and cathode blind rivet；
The cathode blind rivet is vertically installed at the top of the left end of the cathode rivet nut；
The cathode blind rivet is inserted into cathode sealing ring；
It is and negative after the cathode blind rivet runs through the cathode sealing ring in Upper gasket and battery cover board bottom plate from the bottom up
The top surface of extreme pressure plate rivets together.
Wherein, after the cathode blind rivet of institute's cathode rivet and the top surface riveted of cathode pressing plate, also progress optical-fiber laser weldering welding.
In addition, the present invention also provides a kind of battery battery core, including the described in any item battery cover boards of claim-；
Including battery pole group, the top left and right ends of the battery pole group are respectively provided with anode ear and negative electrode lug；
Anode ear and negative electrode lug are connected with positive rivet and cathode rivet respectively.
By the above technical solution provided by the invention as it can be seen that compared with prior art, the present invention provides a kind of band mistakes
The battery battery core with the battery cover board of short-circuit protection and its application is filled, can reduce the requirement to battery core consistency, it is effectively right
Electric core of lithium ion power battery carries out security protection, and to being connected in series or in parallel by multiple electric core of lithium ion power battery
Battery modules carry out security protection, and then improve user to the use feeling of battery product, are of great practical significance.
Detailed description of the invention
Fig. 1 is that a kind of band provided by the invention overcharges the overall structure diagram with the battery cover board of short-circuit protection；
Fig. 2 is that a kind of band provided by the invention overcharges the dimensional decomposition structure diagram with the battery cover board of short-circuit protection；
Fig. 3 is occurs when a kind of band provided by the invention overcharges the battery battery core installed with the battery cover board of short-circuit protection
When problem, location status variation schematic diagram of the pressure-sensitive diaphragm before digging and after digging；
Fig. 4 is a kind of structural schematic diagram for the battery pole group that battery battery core has provided by the invention, the battery pole group
Anode ear and negative electrode lug, overcharged respectively with a kind of band provided by the invention positive rivet in the battery cover board with short-circuit protection and
Cathode rivet mutually welds；
In figure: 1 is battery cover board bottom plate, and 2 are positive extreme pressure plate, and 3 are negative extreme pressure plate, and 4 be positive rivet, and 5 be cathode rivet；
6 be positive rubber mat, and 7 be cathode insulating cement pad, and 8 be positive sealing ring, and 9 be cathode sealing ring, and 10 be pressure-sensitive diaphragm；
11 be the first groove, and 12 be the second groove, and 13 be Upper gasket；
20 be battery pole group, and 21 be anode ear, and 22 be negative electrode lug.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawing with embodiment to this
Invention is described in further detail.
Referring to Fig. 1 to Fig. 4, the present invention provides a kind of bands to overcharge the battery cover board with short-circuit protection, and it is suitable for aluminium
Material shell is the battery of basic structure, especially suitable for high-energy, high-power power battery or energy-storage battery.
The present invention includes the battery cover board bottom plate 1 of cross direction profiles, the left and right ends upper surface point of the battery cover board bottom plate 1
It Ju You not the first groove 11 and the second groove 12；
It is provided with rectangle, hollow positive rubber mat 6 in first groove 11, is placed with just in the anode rubber mat 6
Extreme pressure plate 2, the anode pressing plate 2 are in contact with 11 top surface of the first groove；
The underface of the battery cover board bottom plate 1 is provided with the Upper gasket 13 of cross direction profiles；
The left and right ends consistency from top to bottom of the battery cover board bottom plate 1 and Upper gasket 13；
The left end of the Upper gasket 13, the left end of battery cover board bottom plate 1, positive rubber mat 6 and positive pressing plate 2 are passing through one just
Pole rivet 4 rivets together；
The right end of first groove 11 is provided with a pressure-sensitive diaphragm welding hole 100, welds on the pressure-sensitive diaphragm welding hole 100
There is pressure-sensitive diaphragm 10；
The left end of the Upper gasket 13 is provided with pressure-sensitive diaphragm via hole 101 in the following position directly of pressure-sensitive diaphragm 10；
After the bottom of pressure-sensitive diaphragm 10 passes through pressure-sensitive diaphragm via hole 101, be in contact compression with the top surface of positive rivet 4,
To which the top surface of pressure-sensitive diaphragm 10 and positive rivet 4 carries out good compression.
In the present invention, rectangle, non-hollow (i.e. with substrate) negative insulation is provided in second groove 12
Rubber mat 7；
Cathode pressing plate 3 is placed in the negative insulation rubber mat 7；
The right end of the Upper gasket 13, the right end of battery cover board bottom plate 1, negative insulation rubber mat 7 and cathode pressing plate 3 pass through one
A cathode rivet 5 rivets together.
It should be noted that the anode rivet 4 and cathode rivet 5, are respectively used to the battery pole for including with battery battery core
The anode ear at group top is together with negative pole lug welding.
In the present invention, battery cover board bottom plate 1 is aluminium material as pressure-sensitive diaphragm 10.The pressure-sensitive diaphragm 10 exists
The compression resistance inside battery battery core that battery cover board is installed reaches preset value (shape and thickness that the value depends on pressure membrane)
When, it can dig naturally.
It should be noted that battery battery core can generally use takeup type and stacked two kinds of pole groups, top is stretched out just
Tab and negative electrode lug are welded with positive rivet 4, cathode rivet 5 respectively by way of ultrasonic bonding.
In the present invention, in specific implementation, the left end of battery cover board bottom plate 1 by injection molding manner be connected with one it is hollow
Positive sealing ring 8；
The left end of first groove 11 is provided with the first positive sealing ring receiving hole 81, and the upper end of positive sealing ring 8 is embedded into the
In one positive sealing ring receiving hole 81；
The left end of Upper gasket 13 is provided with the second positive sealing ring and accommodates in the underface of the first positive sealing ring receiving hole 81
Hole 82；
The lower end of positive sealing ring 8 is embedded into the second positive sealing ring receiving hole 82.
In specific implementation, the anode rivet 4 includes positive rivet nut 41 and positive blind rivet 42；
The anode blind rivet 42 is vertically installed at the top of the left end of the positive rivet nut 41；
The anode blind rivet 42 is inserted into positive sealing ring 8；
The anode blind rivet 42 is from the bottom up through the positive sealing ring 8 being located in Upper gasket 13 and battery cover board bottom plate 1
Afterwards, the top surface with positive pressing plate 2 rivets together.
In specific implementation, after the top surface riveted of the positive blind rivet 42 of positive rivet 4 and positive pressing plate 2, also progress optical fiber swashs
Flush weld welding.
In the present invention, in specific implementation, the right end of battery cover board bottom plate 1 by injection molding manner be connected with one it is hollow
Cathode sealing ring 9；
The left end of second groove 11 is provided with the first cathode sealing ring receiving hole 91, and the upper end of cathode sealing ring 9 is embedded into
In one cathode sealing ring receiving hole 91；
The right end of Upper gasket 13 is provided with the receiving of the second cathode sealing ring in the underface of the first cathode sealing ring receiving hole 91
Hole 92；
The lower end of cathode sealing ring 9 is embedded into the second cathode sealing ring receiving hole 92.
In specific implementation, the cathode rivet 5 includes cathode rivet nut 51 and cathode blind rivet 52；
The cathode blind rivet 52 is vertically installed at the top of the left end of the cathode rivet nut 51；
The cathode blind rivet 52 is inserted into cathode sealing ring 9；
The cathode blind rivet 52 is from the bottom up through the cathode sealing ring 9 being located in Upper gasket 13 and battery cover board bottom plate 1
Afterwards, the top surface with cathode pressing plate 3 rivets together.
In specific implementation, after the cathode blind rivet 52 of cathode rivet 5 and the top surface riveted of cathode pressing plate 3, also progress optical fiber swashs
Flush weld welding.
It should be noted that the cathode pressing plate 3 is not in contact with second groove 12, the negative insulation rubber mat 7
Between the second groove 12 and the cathode pressing plate 3 of the battery cover board bottom plate 1, it is used for the battery cover board bottom plate 1
The second groove 12 be spaced from each other with the cathode pressing plate 3, to realize insulation effect.
The technical solution with the battery cover board of short-circuit protection is overcharged based on a kind of band provided by the invention above, the present invention is also
Provide a kind of battery battery core comprising the top left and right ends of battery pole group 20, the battery pole group 20 are respectively provided with anode
Ear 21 and negative electrode lug 22；
Anode ear 21 and negative electrode lug 22, respectively in the battery cover board of structure noted earlier positive rivet 4 and cathode riveting
Nail 5 is connected.
In order to which the present invention is more clearly understood, the working principle of the invention is illustrated below.
For the present invention, the battery battery core that can satisfy energy ratio higher material is used, and battery battery core is normally working
Under state, internal temperature and air pressure are lower, and battery core is maintained at a more healthy state, substantially produce gas and warming phenomenon is not
It will appear.In the state of battery core health, pressure-sensitive diaphragm 10 is contacted with positive rivet 4, positive pressing plate 2 and battery cover board bottom plate
1 contact, the anode ear for the battery pole group that battery battery core has and negative electrode lug are connect with positive rivet 4, cathode rivet 5 respectively,
So, the electric current of battery core can export to come outward from positive pressing plate 2 and cathode pressing plate 3.
But the battery modules for being connected in series or in parallel by multiple electric core of lithium ion power battery, when the peace of mould group
Full protection device goes wrong, for example, anti-overcharge module or temperature collecting module of circuit board etc. is when something goes wrong, battery modules
It is almost nil to the control ability of battery core, then, battery core, which will will appear, overcharges or is persistently large current discharge caused short circuit etc.
Abnormal conditions.It is also exactly that the vehicles of battery modules is installed in the process of moving, if there is the accidents such as needle thorn, collision, battery core
Occur through injury.When these safety accidents occur, meeting sharply heat production, produces gas inside battery core, and pressure can rapidly rise to one
A higher level.For the present invention, turned over a little at this point, the pressure-sensitive diaphragm 10 connecting with positive rivet 4 has reached in internal pressure
Afterwards, the contact of disengaging and positive rivet 4 rapidly, positive pressing plate 2 and the anode ear of battery pole group occur breaking at this time, so that
The battery pole group that battery core has is isolated from the outside, and plays the role of the good protection to battery core.
Referring specifically to shown in Fig. 3, if the internal temperature of battery battery core and pressure sharply increase, battery battery core is in normal shape
Pressure-sensitive diaphragm 10 when state in recessed location A is in raised position B by jack-up at elevated pressures, that is to say, that with anode
After internal pressure has reached and turned over a little, the contact of disengaging and positive rivet 4 does not reconnect the pressure-sensitive diaphragm 10 that rivet 4 connects, into
And open circuit occurs for the anode ear for the battery pole group that positive pressing plate 2 has with battery battery core, so that the battery pole that battery core has
Group is isolated from the outside, and realizes good security protection.
For the present invention, the advantage of the technical solution used is, multiple battery cores when series-parallel, even if the one of battery core
Cause property is poor, will not fail there is a situation where the protective device of battery core, because in all existing circuit of series and parallel battery core,
As long as having a battery core that open circuit occurs, then the entire circuit of the battery core and the external world are all off, so as to this battery core
Reliable protection is formed, is avoided due to overcharging or short circuit damages, forms security risk.
For the present invention, the range that can be used is wider, and the battery core suitable for flat-type, foil pole not only can be used
This structure also can be used in the battery cover board of ear winding band connection leader.As long as being directed to the battery core of different materials system, set
Rise turn over power, then can realize it is series-parallel to the battery core that consistency is poor after play protection.The advantages of this safety device
It is, use scope is wider, and the form that can change is more, and accuracy is preferable.
In the present invention, it should be noted that overcurrent is generally referred to as the electricity by being no less than 1000A (ampere) size
Stream.
For the present invention, it should be noted that the manufacturing process of battery battery core is the battery pole group for including by each battery core
Anode ear and negative electrode lug, the positive rivet 4 having respectively with battery cover board and cathode rivet 5 carry out ultrasonic bonding, later period
The battery modules that the multiple mould groups of assembling (PACK) are formed in series and parallel constantly, will include the battery modules busbar connector point of multiple battery cores
It is not linked together with positive pressing plate 1 and cathode pressing plate 2 by laser welding, during this, in order to guarantee entire battery mould
The overcurrent performance of group needs the welding quality of each step of strict control, and monitors busy internal resistance.
In addition, the internal resistance control of battery cover board is also very heavy in addition to the internal resistance in battery core manufacturing process will be controlled
The ring wanted.In the production of battery cover board, will point related with internal resistance, controlled.Pressure-sensitive diaphragm 10 is to weld in advance
On battery cover board bottom plate 1, positive sealing ring 8 and cathode sealing ring 9 are moulded in battery cover board bottom plate 1, it then will be positive
Pressing plate 2 and positive rivet 4 rivet together, and cathode pressing plate 3 and cathode rivet 5 rivet together.
Wherein, positive rubber mat 6 and negative insulation rubber mat 7 each serve as the effect for protecting positive pressing plate 2 and cathode pressing plate 3,
Upper gasket 11 is isolated by the battery pole group that battery core has with battery cover board bottom plate 1, and prevents pole group play in battery core.
It is born in internal resistance controlling party face by the way that optical-fiber laser weldering welding will be carried out after 2 riveted of positive rivet 4 and positive pressing plate
Optical-fiber laser weldering welding is carried out after 3 riveted of pole rivet 5 and cathode pressing plate.
In specific implementation, pressure-sensitive diaphragm 10 will be compressed with positive rivet 4, and control the flatness in two basic change face and thick
Rugosity reduces contact internal resistance to greatest extent.It thus can both guarantee overcurrent performance, safeguard protection can be carried out.
It should be noted that overcharging the battery cover board with short-circuit protection, battery cover board main body for band provided by the invention
Substantially it is made using aluminium, because the material is soft for aluminium, is easily worked and welds.
Positive and negative anodes pressing plate, positive and negative anodes rivet and pressure-sensitive diaphragm pass through mold processing and fabricating, positive and negative anodes rubber mat, positive and negative anodes sealing
Circle and Upper gasket are formed by injection molding.
It should be noted that positive sealing ring and cathode sealing ring are to be directly injection-moulded in battery in order to guarantee sealing performance
On cover board bottom plate.By the positive rubber mat processed, negative insulation rubber mat, positive pressing plate, cathode pressing plate, positive rivet, cathode riveting
Nail, Upper gasket, are assembled together by way of riveting.Pressure-sensitive diaphragm be directly be welded on battery cover board, and will with just
Pole rivet contacts well.In order to by the internal resistance of battery cover board control in reasonable range, also by positive rivet,
Cathode rivet welds together with positive pressing plate, cathode pressing plate respectively.It is suitable for the pole group that tab is stretched out to side from money cover board,
The scope of application is wide.
The use scope of technique of the invention is wide, and wherein sealing element can use fluorubber and be substituted, if
In the case of cost acceptable, the components of mold processing also can use mach mode and make.
Compared with prior art, the present invention has advantageous effects below:
1, by overcharging the battery cover board with short-circuit protection using band, it can reduce requirement of the battery core to consistency, more
It, can also be by overcharging test in the case that a battery core is series-parallel；
2, band overcharges strong with the resistance to corrosion of the battery cover board of short-circuit protection；
3, be provided with overcharge it is good with the overcurrent performance of the battery core of the battery cover board of short-circuit protection.
In conclusion compared with prior art, a kind of band provided by the invention overcharges the battery cover board with short-circuit protection
And its battery battery core of application, it can reduce the requirement to battery core consistency, effectively electric core of lithium ion power battery carried out
Security protection, and security protection is carried out to the battery modules being connected in series or in parallel by multiple electric core of lithium ion power battery,
And then user is improved to the use feeling of battery product, it is of great practical significance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of band overcharges the battery cover board with short-circuit protection, which is characterized in that the battery cover board bottom plate including cross direction profiles
(1), the left and right ends upper surface of the battery cover board bottom plate (1) is respectively provided with the first groove (11) and the second groove (12)；
It is provided with rectangle, hollow positive rubber mat (6) in first groove (11), is placed in the anode rubber mat (6)
Positive pressing plate (2), the anode pressing plate (2) are in contact with the first groove (11) top surface；
The Upper gasket (13) of cross direction profiles is provided with immediately below the battery cover board bottom plate (1)；
The left and right ends consistency from top to bottom of the battery cover board bottom plate (1) and Upper gasket (13)；
The left end of the Upper gasket (13), the left end of battery cover board bottom plate (1), positive rubber mat (6) and positive pressing plate (2) pass through one
A anode rivet (4) rivets together；
Rectangle, non-hollow negative insulation rubber mat (7) is provided in second groove (12)；
Cathode pressing plate (3) are placed in the negative insulation rubber mat (7)；
The right end of the Upper gasket (13), the right end of battery cover board bottom plate (1), negative insulation rubber mat (7) and cathode pressing plate (3) are logical
A cathode rivet (5) is crossed to rivet together；
The right end of first groove (11) is provided with a pressure-sensitive diaphragm welding hole (100), welds on the pressure-sensitive diaphragm welding hole (100)
It is connected to pressure-sensitive diaphragm (10)；
The left end of the Upper gasket (13) is provided with pressure-sensitive diaphragm via hole (101) in the following position directly of pressure-sensitive diaphragm (10)；
After the bottom of pressure-sensitive diaphragm (10) passes through pressure-sensitive diaphragm via hole (101), connects with the top surface of positive rivet (4) and press
Tightly.
2. band as described in claim 1 overcharges the battery cover board with short-circuit protection, which is characterized in that battery cover board bottom plate (1)
Left end one hollow positive sealing ring (8) is connected with by injection molding manner；
The left end of first groove (11) is provided with the first positive sealing ring receiving hole (81), and the upper end of positive sealing ring (8) is embedded into
In first positive sealing ring receiving hole (81)；
The left end of Upper gasket (13) is provided with the second positive sealing ring and accommodates in the underface of the first positive sealing ring receiving hole (81)
Hole (82)；
The lower end of positive sealing ring (8) is embedded into the second positive sealing ring receiving hole (82).
3. band as claimed in claim 2 overcharges the battery cover board with short-circuit protection, which is characterized in that the anode rivet (4)
Including positive rivet nut (41) and positive blind rivet (42)；
The anode blind rivet (42) is vertically installed at the top of the left end of the positive rivet nut (41)；
The anode blind rivet (42) is inserted into positive sealing ring (8)；
The anode blind rivet (42) is from the bottom up through the positive sealing ring being located in Upper gasket (13) and battery cover board bottom plate (1)
(8) it after, rivets together with the top surface of positive pressing plate (2).
4. band as claimed in claim 3 overcharges the battery cover board with short-circuit protection, which is characterized in that positive rivet (4) is just
After the top surface riveted of pole blind rivet (42) and positive pressing plate (2), also progress optical-fiber laser weldering welding.
5. band as described in claim 1 overcharges the battery cover board with short-circuit protection, which is characterized in that battery cover board bottom plate (1)
Right end one hollow cathode sealing ring (9) is connected with by injection molding manner；
The left end of second groove (11) is provided with the first cathode sealing ring receiving hole (91), and the upper end of cathode sealing ring (9) is embedded into
In first cathode sealing ring receiving hole (91)；
The right end of Upper gasket (13) is provided with the receiving of the second cathode sealing ring in the underface of the first cathode sealing ring receiving hole (91)
Hole (92)；
The lower end of cathode sealing ring (9) is embedded into the second cathode sealing ring receiving hole (92).
6. band as claimed in claim 5 overcharges the battery cover board with short-circuit protection, which is characterized in that the cathode rivet (5)
Including cathode rivet nut (51) and cathode blind rivet (52)；
The cathode blind rivet (52) is vertically installed at the top of the left end of the cathode rivet nut (51)；
The cathode blind rivet (52) is inserted into cathode sealing ring (9)；
The cathode blind rivet (52) is from the bottom up through the cathode sealing ring being located in Upper gasket (13) and battery cover board bottom plate (1)
(9) it after, rivets together with the top surface of cathode pressing plate (3).
7. band as claimed in claim 6 overcharges the battery cover board with short-circuit protection, which is characterized in that institute's cathode rivet (5)
After the top surface riveted of cathode blind rivet (52) and cathode pressing plate (3), also progress optical-fiber laser weldering welding.
8. a kind of battery battery core, which is characterized in that including the described in any item battery cover boards of claim 1-7；
And including battery pole group (20), the top left and right ends of the battery pole group (20) are respectively provided with anode ear (21) and bear
Tab (22)；
Anode ear (21) and negative electrode lug (22) are connected with positive rivet (4) and cathode rivet (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148410.3A CN109950431A (en) | 2019-02-28 | 2019-02-28 | A kind of band overcharges the battery battery core with the battery cover board of short-circuit protection and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148410.3A CN109950431A (en) | 2019-02-28 | 2019-02-28 | A kind of band overcharges the battery battery core with the battery cover board of short-circuit protection and its application |
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| Publication Number | Publication Date |
|---|---|
| CN109950431A true CN109950431A (en) | 2019-06-28 |
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ID=67006526
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910148410.3A Pending CN109950431A (en) | 2019-02-28 | 2019-02-28 | A kind of band overcharges the battery battery core with the battery cover board of short-circuit protection and its application |
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| CN (1) | CN109950431A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379952A (en) * | 2019-07-24 | 2019-10-25 | 苏州炬鸿通讯电脑科技有限公司 | A kind of cover board structure of lithium battery of included safety protection structure |
Citations (8)
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Application publication date: 20190628 |