CN206471411U - A kind of power lithium-ion battery liquid injection hole sealing mechanism - Google Patents
A kind of power lithium-ion battery liquid injection hole sealing mechanism Download PDFInfo
- Publication number
- CN206471411U CN206471411U CN201621375719.4U CN201621375719U CN206471411U CN 206471411 U CN206471411 U CN 206471411U CN 201621375719 U CN201621375719 U CN 201621375719U CN 206471411 U CN206471411 U CN 206471411U
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- China
- Prior art keywords
- liquid injection
- injection hole
- sealing
- unit
- ion battery
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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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- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model is related to a kind of power lithium-ion battery liquid injection hole sealing mechanism.Including mechanical sealing assembly and elastic packing component, described mechanical sealing assembly includes metal sealing unit and mechanical traction unit, described metal sealing unit is filled in liquid injection hole and coordinated with liquid injection hole formation sealing, and described metal sealing unit has inside plastic deformation ability and the metal sealing unit provided with the cavity being engaged with mechanical traction unit.As shown from the above technical solution, the utility model is by being lifted up metal core rod, so as to drive seal modules to move upwards, and is interference fitted with the metal sealing unit formation of plastically deformable, and then realize sealed effect.Meanwhile, sealing effectiveness is strengthened by elastic packing component and the error in engagement process is reduced.The sealing mechanism can realize the fast sealing in battery liquid-filling hole, and process is simply efficient, and sealing effectiveness and yield are significantly improved compared with conventional seals technique.
Description
Technical field
The utility model is related to field of lithium ion battery, and in particular to a kind of power lithium-ion battery liquid injection hole sealer
Structure.
Background technology
Lithium ion battery energy density is high, manufactures and pollution-free using process, is widely used to domestic electronic appliances, drive
Dynamic power supply and energy storage device.Power lithium-ion battery manufacture process craft is complicated, and product quality management control is strict, wherein cell sealing
Technique is, by the housing seal after lithium ion battery liquid injection, to realize inside battery and the completely isolated important work of external environment
Sequence.Sealing of the current driving force lithium ion battery after fluid injection mainly has steel ball sealing to select two kinds of adhesive curing and diaphragm seal laser welding
Mode, using artificial operation or mechanically operated steel ball sealing technology exist steel ball with liquid injection port fit precision asking not enough
Topic, while dispensing amount is difficult to control to cause battery outward appearance uniformity poor with dispensing pattern；Using diaphragm seal Laser Welding mode, by
Had differences between mounting material and liquid injection hole material, and the reason, welding process such as possible entrained electrolyte at liquid injection hole
The generation of middle impurity and gas, causes bonding power in laser beam welding to fluctuate, cause weld seam occur fried point, pit,
The defects such as pin hole, crackle, cause weld strength deficiency, welding pattern bad, ultimately result in cell sealing and fail and then produce complete
Battery is scrapped.
Utility model content
The purpose of this utility model is to provide a kind of power lithium-ion battery liquid injection hole sealing mechanism, the sealer
Structure can realize the fast sealing in battery liquid-filling hole, and process is simply efficient, and sealing effectiveness and yield have compared with conventional seals technique
Significantly improve.
To achieve the above object, the utility model employs following technical scheme：It is close including mechanical sealing assembly and elasticity
Sealing assembly, described mechanical sealing assembly includes metal sealing unit and mechanical traction unit, described metal sealing unit
It is filled in liquid injection hole and coordinates with liquid injection hole formation sealing, described metal sealing unit has plastic deformation ability and the gold
Provided with the cavity being engaged with mechanical traction unit inside category sealing unit.
Described metal sealing unit is integrally stepped, including with liquid injection hole upper surface mutually sealedly enlarged diameter section and
With the sealed reduced diameter section of liquid injection hole inwall phase, described cavity is the stepped internal lumen set through metal sealing unit, bag
Diameter different first inner chamber and second inner chamber are included, the diameter of the first inner chamber is less than second inner chamber.
Described mechanical traction unit includes the metal core rod that vertical is arranged and is engaged with first inner chamber, metal-cored
The lower end of bar is provided with the oriented module being in contact with second inner chamber, and the lower end of the oriented module is provided with to be formed with second inner chamber
It is full of the seal modules of cooperation.
Described elastic packing component includes horizontally arranged platform seal and the side wall of vertical setting is close
Mounting, described platform seal is arranged between metal sealing unit and the upper surface of liquid injection hole, described side wall diaphragm seal
It is arranged between metal sealing unit and the inwall of liquid injection hole.
Described elastic packing component is made of insulating polymer material, and material is one in PP, PE, PFA or PPS
Kind.
The middle part of the metal core rod is provided with the necking part or indentation for being easy to fracture.
Described oriented module is structure as a whole with seal modules.
Provided with both transition structures of connection between described oriented module and seal modules.
As shown from the above technical solution, the utility model is by being lifted up metal core rod, thus drive seal modules to
Upper motion, and be interference fitted with the metal sealing unit formation of plastically deformable, and then realize sealed effect.Meanwhile, pass through
Elastic packing component strengthens sealing effectiveness and reduces the error in engagement process, and the sealing mechanism can realize the fast of battery liquid-filling hole
Speed sealing, and process is simply efficient, sealing effectiveness and yield are significantly improved compared with conventional seals technique.
Brief description of the drawings
Fig. 1 is the structural representation of lithium ion battery cover board and liquid injection hole；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the structural representation of the utility model metal sealing unit；
Fig. 4 is the structural representation of the utility model mechanical traction unit.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 illustrates the structure chart of lithium ion battery cover board and liquid injection hole, and liquid injection hole 10 is opened on battery cover board 20.
A kind of power lithium-ion battery liquid injection hole sealing mechanism as shown in Figure 2, including mechanical sealing assembly and elasticity it is close
Sealing assembly, mechanical sealing assembly includes metal sealing unit 1 and mechanical traction unit 2, and metal sealing unit 1 is filled in fluid injection
Coordinate in hole 10 and with the formation sealing of liquid injection hole 10, metal sealing unit 1 has plastic deformation ability and the metal sealing unit 1
Inside is provided with the cavity 13 being engaged with mechanical traction unit 2.Further, mechanical traction unit 2 and metal sealing unit 1
Fit dimension can be designed and adjust according to the actual size for sealing workpiece, the structure of cavity 13 inside metal sealing unit 1
It can select open or closed.
Further, as shown in figure 3, metal sealing unit 1 is overall stepped including mutually close with the upper surface of liquid injection hole 10
The enlarged diameter section 11 of envelope and with the inwall of liquid injection hole 10 mutually sealedly reduced diameter section 12, cavity 13 be through metal sealing unit 1
The stepped internal lumen of setting, including the different first inner chamber 131 of diameter and second inner chamber 132, the diameter of first inner chamber 131 are less than
Second inner chamber 132.
Further, as shown in figure 4, mechanical traction unit 2 includes vertical arrangement and is engaged with first inner chamber 131
Metal core rod 21, the lower end of metal core rod 21 is provided with the oriented module 22 being in contact with second inner chamber 132, oriented module 22
Lower end is provided with the seal modules 23 with the formation interference fit of second inner chamber 132.Oriented module 22 plays guiding in second inner chamber 132
Effect, the sealing with second inner chamber 132 is realized by seal modules 23.Further, oriented module 22 is with seal modules 23
Provided with both transition structures of connection between integrative-structure or oriented module 22 and seal modules 23.I.e. oriented module 22 with it is close
It both can be integrative-structure to seal module 23, can also there is intermediate configuration.
Further, elastic packing component includes the side that horizontally arranged platform seal 3 and vertical are set
Wall diaphragm seal 4, platform seal 3 is arranged between the upper surface of metal sealing unit 1 and liquid injection hole 10, and side wall diaphragm seal 4 is set
Put between the inwall of metal sealing unit 1 and liquid injection hole 10.Platform seal 3 realizes metal sealing unit 1 and liquid injection hole 10
The transverse sealing of upper surface, side wall diaphragm seal 4 realizes the longitudinal sealing of metal sealing unit 1 and the inwall of liquid injection hole 10, and platform is close
Sealing 3 and side wall diaphragm seal 4 both may be used alone, can also be used in combination.
Further, elastic packing component is made of insulating polymer material, and material is in PP, PE, PFA or PPS
It is a kind of.
Further, the middle part of metal core rod 21 is provided with the necking part or indentation 24 for being easy to fracture.Necking down ratio and
The depth of indentation is determined according to the designed size of tractive force.When the timing of tractive force one of metal core rod 21, the diameter of metal core rod
Increase, necking down ratio and the indentation late into the night all can accordingly increase.
Operation principle and using method of the present utility model is as follows：
In use, operating personnel are lifted up metal core rod 21, metal core rod 21, to be oriented to, is driven close with oriented module 22
Seal module 23 to move upwards, due to the plastically deformable of metal sealing unit 1, so when seal modules 23 are moved up in second
During chamber 132, seal modules 23 expand second inner chamber 132 and are interference fitted with the formation of second inner chamber 132, and then realize sealedly effect
Really.Meanwhile, in order to strengthen sealing effectiveness and reduce the error in engagement process, in metal sealing unit 1 with sealing connecing for workpiece
Elastic packing component is introduced between contacting surface, that is, sets platform to seal between metal sealing unit 1 and battery cover board 20
Part 3, sets side wall diaphragm seal 4, to strengthen sealing effectiveness between metal sealing unit 1 and the inwall of liquid injection hole 10.Sealing is completed
Afterwards, the metal core rod 21 of mechanical traction unit 2 is broken at its necking down or indentation, metal core rod 21 can centralized recovery it is pollution-free,
The oriented module 22 of mechanical traction unit 2 is remained in the cavity of metal sealing unit 1 with seal modules 23.
The beneficial effects of the utility model are：1）The utility model passes through mechanical engagement side to lithium ion battery liquid injection hole
Formula is sealed, and sealing mechanism is easily operated, is not influenceed completely by external factor such as entrained electrolytes, seal process is simply high
Effect, sealing mechanism crash rate is extremely low；2）Interference fit by mechanical traction unit and metal sealing unit is that sealing can be achieved
Effect, mechanical engagement intensity is big and coordinates accuracy high；3）Using sealing mechanism of the present utility model, without external light source or energy
Energy consumption is low during amount system, use and does not produce any gas or dust pollution, harmless to environment and operator.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, on the premise of the utility model design spirit is not departed from, and those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of the utility model claims determination
In the range of.
Claims (8)
1. a kind of power lithium-ion battery liquid injection hole sealing mechanism, it is characterised in that：Including mechanical sealing assembly and elastic packing
Component, described mechanical sealing assembly includes metal sealing unit (1) and mechanical traction unit (2), described metal sealing
Unit (1) is filled in liquid injection hole (10) and coordinated with liquid injection hole (10) formation sealing, and described metal sealing unit (1) has
Provided with the cavity (13) being engaged with mechanical traction unit (2) inside plastic deformation ability and the metal sealing unit (1).
2. power lithium-ion battery liquid injection hole sealing mechanism according to claim 1, it is characterised in that：Described metal is close
Seal unit (1) overall stepped, including with liquid injection hole (10) upper surface mutually sealedly enlarged diameter section (11) and and liquid injection hole
(10) the sealed reduced diameter section (12) of inwall phase, described cavity (13) is through the step-like of metal sealing unit (1) setting
Inner chamber, including the different first inner chamber of diameter (131) and second inner chamber (132), the diameter of the first inner chamber (131) are less than the
Two inner chambers (132).
3. power lithium-ion battery liquid injection hole sealing mechanism according to claim 2, it is characterised in that：Described machinery is led
Draw the metal core rod (21) that unit (2) is arranged including vertical and is engaged with first inner chamber (131), metal core rod (21)
Lower end is provided with the oriented module (22) being in contact with second inner chamber (132), and the lower end of the oriented module (22) is provided with and second
Inner chamber (132) forms the seal modules (23) of interference fit.
4. power lithium-ion battery liquid injection hole sealing mechanism according to claim 1, it is characterised in that：Described is elastic close
Sealing assembly includes the side wall diaphragm seal (4) that horizontally arranged platform seal (3) and vertical are set, described platform
Seal (3) is arranged between the upper surface of metal sealing unit (1) and liquid injection hole (10), and described side wall diaphragm seal (4) is set
Put between the inwall of metal sealing unit (1) and liquid injection hole (10).
5. the power lithium-ion battery liquid injection hole sealing mechanism according to claim 1 or 4, it is characterised in that：Described bullet
Property seal assembly be made of insulating polymer material, material be PP, PE, PFA or PPS in one kind.
6. power lithium-ion battery liquid injection hole sealing mechanism according to claim 3, it is characterised in that：The metal core rod
(21) middle part is provided with the necking part or indentation for being easy to fracture.
7. power lithium-ion battery liquid injection hole sealing mechanism according to claim 3, it is characterised in that：Described guiding module
Block (22) is structure as a whole with seal modules (23).
8. power lithium-ion battery liquid injection hole sealing mechanism according to claim 3, it is characterised in that：Described guiding module
It is provided between block (22) and seal modules (23) and is connected both transition structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375719.4U CN206471411U (en) | 2016-12-14 | 2016-12-14 | A kind of power lithium-ion battery liquid injection hole sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375719.4U CN206471411U (en) | 2016-12-14 | 2016-12-14 | A kind of power lithium-ion battery liquid injection hole sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471411U true CN206471411U (en) | 2017-09-05 |
Family
ID=59712727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621375719.4U Active CN206471411U (en) | 2016-12-14 | 2016-12-14 | A kind of power lithium-ion battery liquid injection hole sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206471411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531957A (en) * | 2016-12-14 | 2017-03-22 | 合肥国轩高科动力能源有限公司 | Sealing mechanism for electrolyte injection hole of power lithium ion battery |
-
2016
- 2016-12-14 CN CN201621375719.4U patent/CN206471411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531957A (en) * | 2016-12-14 | 2017-03-22 | 合肥国轩高科动力能源有限公司 | Sealing mechanism for electrolyte injection hole of power lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191022 Address after: 230601 HENGCHUANG Intelligent Technology Park, 3959 Susong Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Hefei GuoXuan Battery Co., Ltd Address before: 230011 No. 599 Dai River Road, New Station District, Anhui, Hefei Patentee before: Hefei Guoxuan Gaoke Power Energy Co., Ltd. |
|
| TR01 | Transfer of patent right |