CN206179915U - Aluminum hull lithium ion battery's sealing structure - Google Patents
Aluminum hull lithium ion battery's sealing structure Download PDFInfo
- Publication number
- CN206179915U CN206179915U CN201621126043.5U CN201621126043U CN206179915U CN 206179915 U CN206179915 U CN 206179915U CN 201621126043 U CN201621126043 U CN 201621126043U CN 206179915 U CN206179915 U CN 206179915U
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- cavity
- sealing
- lithium ion
- ion battery
- auxiliary section
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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 utility model provides an aluminum hull lithium ion battery's sealing structure, is including lapping and running through and fasten in the sealed post of apron, sealed post is including sealed shell, case and elastic component, first cavity, second cavity and third cavity are seted up to sealed shell, sealed shell includes top surface and the bottom surface relative with the top surface, and the notes liquid hole with third cavity intercommunication is seted up to the top surface opening on the bottom surface, first cavity is provided with the lug with second cavity junction, and the second cavity is provided with the step with the junction of third cavity, the case include with sealed complex sealing of lug and cooperation portion, the external diameter of sealing be less than the second cavity the internal diameter and the inner wall of second cavity between form the through -hole, the one end cavity that the sealing is close to cooperation portion forms the cavity, sets up the via hole with through -hole and cavity intercommunication on the chamber wall of cavity, cooperation portion cavity forms cooperation chamber, cooperation chamber and cavity and third cavity intercommunication, cooperation portion keeps away from the one end of sealing and has seted up the accepting groove, and elastic component one end is fixed in the step other end accepts in the accepting groove.
Description
【Technical field】
This utility model is related to electrokinetic cell field, more particularly to a kind of enclosuring structure of lithium ion battery with aluminum shell.
【Background technology】
In recent years, new-energy automobile industry had welcome explosive growth.Electrokinetic cell is the core of electric automobile, is also vapour
Turner journey embodies with the comprehensive of electric power project engineering.Lithium ion battery is because with voltage height, energy density height, operating temperature range
Extensively, advantages of environment protection is used widely in electrokinetic cell field.
Because lithium ion battery needs to inject electrolyte toward inside battery in process of production, then through formation process,
And lithium ion battery with aluminum shell sealing is steel ball, after the completion of fluid injection, steel ball is knocked in into liquid injection port, reach sealing effectiveness,
Formation process does not have deairing step, and the pressure that can make inside battery increases.There are many shortcomings in this operating process：Operating process
Loaded down with trivial details, efficiency is low, at the same in formation process, because the gas for producing can not be discharged in time, the increase of inside battery pressure, steel ball
Easily burst out, cause seal failure.
In consideration of it, real be necessary to provide a kind of simple to operate, good seal performance, can realize the lithium ion battery with aluminum shell of aerofluxuss
Enclosuring structure.
【Utility model content】
The purpose of this utility model is to provide a kind of simple to operate, good seal performance, can realize the aluminum hull lithium ion of aerofluxuss
The enclosuring structure of battery.
To achieve these goals, this utility model provides a kind of enclosuring structure of lithium ion battery with aluminum shell, including cover plate
And through and be anchored on the sealing column of cover plate；
The cover plate central offers through hole to coordinate the sealing column；
The sealing column includes capsul, valve element and elastic component；
The capsul opens up the first cavity, the second cavity and the 3rd cavity, first cavity, the second cavity and the 3rd
Cavity connection is arranged；The capsul includes top surface and the bottom surface relative with top surface, the top surface opening, opens up on the bottom surface
There is the liquid injection hole connected with the 3rd cavity；First cavity and the second cavity junction are provided with projection, and described second
The junction of cavity and the 3rd cavity is provided with step；
The valve element includes sealing and the auxiliary section positioned at sealing one end, and the sealing is matched somebody with somebody with projection sealing
Close；The external diameter of the sealing is less than the internal diameter of second cavity, between the sealing and the inwall of second cavity
Form through hole；The sealing was offered near the hollow formation cavity in one end of the auxiliary section in the cavity wall of the cavity
Hole, the via is connected with the through hole and the cavity；The hollow formation mating cavity in the auxiliary section, the mating cavity with it is described
Cavity and the 3rd cavity are connected；The auxiliary section offers accepting groove away from one end of the sealing；
The valve element is contained in second cavity, and described elastic component one end is fixed on the step other end and is contained in institute
Accepting groove is stated, the valve element being capable of relatively described second cavity slip.
In a preferred embodiment, the first tapered wedges are provided with the projection and the contact surface of second cavity
And the junction of the first wedge groove, first tapered wedges and the first wedge groove is inclined-plane；The sealing is away from the cooperation
The second wedge groove for being engaged with first tapered wedges is provided with the end face in portion and is engaged with the first wedge groove
The junction of the second tapered wedges, second tapered wedges and the second wedge groove is inclined-plane；First tapered wedges and the second wedge
Groove and the first wedge groove cooperate with the second tapered wedges.
In a preferred embodiment, the sealing center is recessed to form groove toward auxiliary section direction.
In a preferred embodiment, the external diameter of the auxiliary section is consistent with the internal diameter of second cavity, described to match somebody with somebody
Conjunction portion is fitted close with the inwall of second cavity；The auxiliary section extends to form cooperation away from one end of the sealing
End, the accepting groove be opened in auxiliary section away from one end of the sealing and with the abutting end junction.
In a preferred embodiment, the step includes coordinating step and fixed step；The elastic component is fixed on
The fixed step, the abutting end is engaged with the cooperation step.
In a preferred embodiment, the accepting groove interval is relatively set with two；The elastic component be spring and
There are two.
In a preferred embodiment, second cavity is provided with engaging on the outer wall of first cavity
Portion, the size of the holding section is more than the through hole of the cover plate；First cavity is away from described second cavity one end
Screw thread is provided with wall.
In a preferred embodiment, first cavity, through hole, via, cavity, mating cavity, the 3rd cavity and note
Fluid apertures is collectively forming the passage of electrolyte or gas.
Compared to existing positive and negative terminal fixed form, the positive and negative terminal fixation side of this novel battery box structure
Formula operation sequence simplifies, and without the need for dispensing, without the need for wire segmentation is welded again, direct-assembling line ear is convenient and simple for operation, production
Efficiency high, installs more reliable and waterproof.
【Description of the drawings】
The cross-sectional schematic of the enclosuring structure of the lithium ion battery with aluminum shell that Fig. 1 is provided for this utility model embodiment.
The section view of the enclosuring structure sealing state of the lithium ion battery with aluminum shell that Fig. 2 is provided for this utility model embodiment
Figure.
The partial sectional view of the enclosuring structure of the lithium ion battery with aluminum shell that Fig. 3 is provided for this utility model embodiment.
The partial sectional view of the enclosuring structure of the lithium ion battery with aluminum shell that Fig. 4 is provided for this utility model embodiment.
The sealing column fluid injection of the enclosuring structure of the lithium ion battery with aluminum shell that Fig. 5 is provided for this utility model embodiment or row
The sectional view of gaseity.
【Specific embodiment】
In order that the purpose of this utility model, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with
Accompanying drawing in this utility model embodiment, is clearly and completely retouched to the technical scheme in this utility model embodiment
State, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the embodiment of whole.
Based on the embodiment in this utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
Every other embodiment, belong to this utility model protection scope.
As shown in figure 1, a kind of enclosuring structure 100 of lithium ion battery with aluminum shell of this utility model offer.Including cover plate 10
And through and be anchored on the sealing column 20 of cover plate 10.
The center of the cover plate 10 offers through hole (not shown) to coordinate the sealing column 20.
As shown in Fig. 2 the sealing column 20 is received including capsul 21, the valve element 22 for being contained in the capsul 21 and one end
It is dissolved in the elastic component 23 that the other end of valve element 22 is resisted against capsul 21.
As depicted in figs. 3 and 5, the capsul 21 opens up the first cavity 211, the second cavity 212 and the 3rd cavity 213.
The connection of first cavity 211, second cavity 212 and the 3rd cavity 213 is arranged.The capsul 21 includes top surface
214 and the bottom surface 215 relative with top surface 214.The top surface 214 is open, and offers on the bottom surface 215 and the 3rd cavity
The liquid injection hole 2151 of 213 connections, the liquid injection hole 2151 is used to carry out fluid injection operation to lithium ion battery.Second cavity
212 are provided with holding section 24 on the outer wall of first cavity 211.The size of the holding section 24 is more than the cover plate 10
Through hole, the 3rd cavity 213 and the second cavity 212 of the sealing column 20 are passed through away from the outer wall of the one end of the first cavity 211
Through hole simultaneously stretches out cover plate 10, and the holding section 24 is sticked on the through hole of the cover plate 10.
It is close to coordinate that first cavity 211 is provided with screw thread 2111 on the inwall away from described one end of second cavity 212
Envelope post lid (not shown) is sealed to the sealing column 20.First cavity 211 is provided with the junction of the second cavity 212
Projection 216.The first tapered wedges 2161 and the first wedge are provided with the projection 216 and the contact surface of second cavity 212
Groove 2162, the junction of the wedge groove 2162 of first tapered wedges 2161 and first is inclined-plane.Second cavity 212 and the 3rd
The junction of cavity 213 is provided with step 217.In present embodiment, the step 217 includes coordinating step 2171 and fixed station
Rank 2172.The fixed step 2172 is used to fix one end of the elastic component 23.
As shown in Figures 2 and 4, the valve element 22 is contained in second cavity 212.The valve element 22 includes sealing
221 and positioned at the auxiliary section 222 of the one end of sealing 221.The sealing 221 and auxiliary section 222 are substantially in cylindrical shape.
The center of the sealing 221 is recessed to form groove 2211 toward the direction of auxiliary section 222, and the groove 2211 is used to hold
Connect the external force of external equipment applying and external equipment can be limited, prevent external equipment from slipping away.The sealing 221 is matched somebody with somebody away from described
The second wedge groove 2212 for being engaged with first tapered wedges 2161 and oblique with described first is provided with the end face in conjunction portion 222
The second tapered wedges 2213 that wedge groove 2162 is engaged, the junction of the wedge groove 2212 of second tapered wedges 2213 and second is oblique
Face.First tapered wedges 2161 and the second wedge groove 2212 and the first wedge groove 2162 and second tapered wedges
2213 cooperate, and so as to being closed to liquid injection hole 2151 and valve element 22 can be positioned, and prevent shifting phenomena.
The external diameter of the sealing 221 is less than the internal diameter of second cavity 212, the sealing 221 and second cavity 212
Through hole 2121 is formed between inwall.The sealing 221 near the auxiliary section 222 one end it is hollow formed cavity 2215, institute
Via 2216 is offered in the cavity wall for stating cavity 2215, the via 2216 connects with the through hole 2121 and the cavity 2215
It is logical.
The external diameter of the auxiliary section 222 is consistent with the internal diameter of second cavity 212, the auxiliary section 222 and described
The inwall of two cavitys 212 is fitted close.The auxiliary section 222 it is hollow formed mating cavity 2221, the mating cavity 2221 with it is described
Cavity 2215 and the 3rd cavity 213 are connected.The auxiliary section 222 extend away from one end of the sealing 221 to be formed with
The abutting end 2222 for coordinating step 2171 to be engaged.The auxiliary section 222 away from the sealing 221 one end and with institute
State the junction of abutting end 2222 and offer the accepting groove 2223 for housing the elastic component 23.In present embodiment, the accepting groove
2223 intervals are relatively set with two.The elastic component 23 is spring and has two.It is right that one end of the elastic component 23 is contained in
Answer in an accepting groove 2223, the other end of the elastic component 23 is by being fixedly welded on one fixed step 2172 of correspondence.Institute
State valve element 22 and compress the slip that the elastic component 23 does relatively described second cavity 212 under external force.
First cavity 211, through hole 2121, via 2216, cavity 2215, mating cavity 2221, the 3rd cavity 213 and note
Fluid apertures 2151 together form the passage of electrolyte or gas.
As shown in Fig. 2 under normal circumstances, the one end of the elastic component 23 is fixed on the other end of fixed step 2172 and is housed
In accepting groove 2223, the elastic component 23 is in compressive state, and the valve element 22 compresses the projection 216, the sealing 221
First cavity 211 is closed, i.e., described second cavity 212 is isolated by sealing 221 with the first cavity 211 and mutually do not connected；Make
Sealing column 20 is in sealing state.
As shown in figure 5, when needing to inject electrolyte in battery, to the groove 2211 external force, the elasticity are applied
Part 23 further compresses, and the valve element 22 is separated with the projection 216, and first cavity 211 is connected with the through hole 2121,
Electrolyte passes sequentially through first cavity 211, through hole 2121, via 2216, cavity 2215, mating cavity 2221, the 3rd cavity
213 and liquid injection hole 2151 injection battery in.When fluid injection is finished, external force is cancelled, the elastic component 23 resets, and the valve element 22 is compressed
The projection 216, realizes the sealing to liquid injection hole 2151.
As shown in figure 5, when aerofluxuss are needed after Battery formation, to the groove 2211 external force, the elastic component 23 are applied
Further compression, the valve element 22 is separated with the projection 216, and gas passes sequentially through liquid injection hole 2151, the 3rd cavity 213, matches somebody with somebody
Conjunction chamber 2221, cavity 2215, via 2216, the cavity 211 of through hole 2121 and first are discharged.When aerofluxuss are finished, external force is cancelled, it is described
Elastic component 23 resets, and the valve element 22 compresses the projection 216, realizes being again sealed off to liquid injection hole 2151.
Compared to prior art, the enclosuring structure of this novel aluminum case lithium battery is simple to operate, good seal performance, can the row of realization
Gas.
This utility model is not restricted to described in description and embodiment, therefore for the personnel of familiar field
For be easily achieved additional advantage and modification, therefore in the general concept limited without departing substantially from claim and equivalency range
Spirit and scope in the case of, this utility model be not limited to specific details, representational equipment and shown here as with retouch
The examples shown stated.
Claims (8)
1. a kind of enclosuring structure of lithium ion battery with aluminum shell, including cover plate and through and be anchored on the sealing column of cover plate；Its feature
It is：
The cover plate central offers through hole to coordinate the sealing column；
The sealing column includes capsul, valve element and elastic component；
The capsul opens up the first cavity, the second cavity and the 3rd cavity, first cavity, the second cavity and the 3rd cavity
Connection is arranged；The capsul includes top surface and the bottom surface relative with top surface, the top surface opening, offer on the bottom surface with
The liquid injection hole of the 3rd cavity connection；First cavity and the second cavity junction are provided with projection, second cavity
The junction of the 3rd cavity is provided with step；
The valve element includes sealing and the auxiliary section positioned at sealing one end, and the sealing coordinates with projection sealing；
The external diameter of the sealing is formed less than the internal diameter of second cavity between the sealing and the inwall of second cavity
Through hole；The sealing offers via, institute near the hollow formation cavity in one end of the auxiliary section in the cavity wall of the cavity
State via to connect with the through hole and the cavity；The hollow formation mating cavity in the auxiliary section, the mating cavity and the cavity
And the 3rd cavity connection；The auxiliary section offers accepting groove away from one end of the sealing；
The valve element is contained in second cavity, and described elastic component one end is fixed on the step other end and is contained in the receipts
Tank, the valve element being capable of relatively described second cavity slip.
2. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 1, it is characterised in that：The projection and described second
The junction of the first tapered wedges and the first wedge groove, first tapered wedges and the first wedge groove is provided with the contact surface of cavity
It is inclined-plane；The sealing is provided with the second wedge being engaged with first tapered wedges on the end face away from the auxiliary section
The junction of groove and the second tapered wedges being engaged with the first wedge groove, second tapered wedges and the second wedge groove is oblique
Face；First tapered wedges cooperate with the second wedge groove and the first wedge groove with the second tapered wedges.
3. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 1, it is characterised in that：The sealing center is past
Auxiliary section direction is recessed to form groove.
4. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 1, it is characterised in that：The external diameter of the auxiliary section with
The internal diameter of second cavity is consistent, and the auxiliary section is fitted close with the inwall of second cavity；The auxiliary section away from
One end of the sealing extends to form abutting end, the accepting groove be opened in auxiliary section away from one end of the sealing and with
The abutting end junction.
5. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 4, it is characterised in that：The step includes coordinating platform
Rank and fixed step；The elastic component is fixed on the fixed step, and the abutting end is engaged with the cooperation step.
6. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 5, it is characterised in that：The accepting groove interval is relative
It is provided with two；The elastic component is spring and has two.
7. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 1, it is characterised in that：Second cavity is near institute
Holding section is provided with the outer wall for stating the first cavity, the size of the holding section is more than the through hole of the cover plate；Described first
Cavity is provided with screw thread on the inwall away from described second cavity one end.
8. the enclosuring structure of lithium ion battery with aluminum shell as claimed in claim 1, it is characterised in that：First cavity, through hole,
Via, cavity, mating cavity, the 3rd cavity and liquid injection hole are collectively forming the passage of electrolyte or gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126043.5U CN206179915U (en) | 2016-10-14 | 2016-10-14 | Aluminum hull lithium ion battery's sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126043.5U CN206179915U (en) | 2016-10-14 | 2016-10-14 | Aluminum hull lithium ion battery's sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206179915U true CN206179915U (en) | 2017-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621126043.5U Active CN206179915U (en) | 2016-10-14 | 2016-10-14 | Aluminum hull lithium ion battery's sealing structure |
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| Country | Link |
|---|---|
| CN (1) | CN206179915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421038A (en) * | 2022-03-30 | 2022-04-29 | 宁德新能源科技有限公司 | Battery cell sealing assembly, battery, electric equipment and battery cell sealing method |
-
2016
- 2016-10-14 CN CN201621126043.5U patent/CN206179915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421038A (en) * | 2022-03-30 | 2022-04-29 | 宁德新能源科技有限公司 | Battery cell sealing assembly, battery, electric equipment and battery cell sealing method |
| CN114421038B (en) * | 2022-03-30 | 2022-06-17 | 宁德新能源科技有限公司 | Battery cell sealing assembly, battery, electric equipment and battery cell sealing method |
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| GR01 | Patent grant | ||
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| PP01 | Preservation of patent right |
Effective date of registration: 20180428 Granted publication date: 20170517 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210428 Granted publication date: 20170517 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210428 Granted publication date: 20170517 |