CN207651539U - Insulation and sealing structure and energy storage device - Google Patents
Insulation and sealing structure and energy storage device Download PDFInfo
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- CN207651539U CN207651539U CN201721507311.2U CN201721507311U CN207651539U CN 207651539 U CN207651539 U CN 207651539U CN 201721507311 U CN201721507311 U CN 201721507311U CN 207651539 U CN207651539 U CN 207651539U
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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 discloses a kind of insulation and sealing structure and energy storage devices, belong to energy storage device technical field.The insulation and sealing structure includes electrode lead-out structure, the negative cover for connected with outer casing and the felt pad and sealing ring that are arranged between the electrode lead-out structure and negative cover, the electrode lead-out structure includes for connecting the collector of core, the pole as cathode and the connecting column that is set between the collector and pole, being arranged in the outer rim of the connecting column fluted；The end set of the negative cover is useful for being arranged the first through hole of the connecting column, the felt pad is set between the groove and first through hole, the upper end of the felt pad rides upon the appearing on the stage between terrace and the upper surface of the negative cover of the groove, and the sealing ring is arranged between the leave from office terrace and the lower face of first through hole of the groove.The utility model production efficiency is high, assembles simple, of low cost and dependable performance.
Description
Technical field
The utility model is related to the insulated enclosure technical field of energy storage device, a kind of insulation and sealing structure and storage are particularly related to
It can device.
Background technology
Battery or ultracapacitor are widely used in the fields such as industry, the energy, military affairs as energy storage device.Wherein seal
With key link of the insulation as production process, it is general using the sealing element with certain structure and insulating part to energy storage device into
Row sealing and insulation.The sealing element of different structure and the sealing of insulating part and insulation mode difference, the insulated enclosure effect of generation
Also different.Which kind of not only the security performance of energy storage device is played a crucial role using insulation and sealing structure, to energy storage
The performance of device and service life also have a major impact.
Currently used insulation and sealing structure has following two structure types, the first structure type was as shown in Figure 1, should
Insulation and sealing structure is respectively placed in the shaft shoulder upper surface of collector plate 5 and the embedded step lower end of shell 4 using 2 insulating washers 2
Insulation processing is carried out between face, between the shaft shoulder upper surface of end cap 1 and the sealing end face of shell 4, O-ring 3 is placed in end cap 1
It is sealed processing between shaft shoulder lower face, and the embedded step upper surface of shell 4.In the insulation and sealing structure absolutely using 2
Edge washer carries out insulation processing, and required part is more, and manufacture and assembly cost are higher；The insulation and sealing structure need to be by shell 4
Slot rolling processing is carried out, process is relatively complicated, is unfavorable for the raising of production efficiency, and to the processing of the embedded step on shell 4
It is more demanding, otherwise the insulated enclosure of energy storage device will will be caused to fail.
Second of insulation and sealing structure is as shown in Fig. 2, the insulation and sealing structure arranges insulation between end cap 8 and shell 6
Sealing ring 7, by carrying out slot rolling to position corresponding with 8 unit with grooves in outer wall of end cap on shell 6 and carrying out sealing part to shell 6
Reason realizes insulation and sealing effect.It can only be customized using the sealing ring 7 of the insulation and sealing structure because shape is more special, and close
Cover product it is larger, material requested is more, and the material of sealing ring 7 is more special, price costly, so the manufacture of insulator seal ring
Cost is 3-4 times of general general sealing element, is produced in enormous quantities, and cost is too high.
Utility model content
That the technical problem to be solved by the present invention is to provide a kind of production efficiencys is high, assembly is simple, of low cost and
The insulation and sealing structure and energy storage device of dependable performance.
In order to solve the above technical problems, the utility model offer technical solution is as follows：
A kind of insulation and sealing structure, including electrode lead-out structure, the negative cover for connected with outer casing and setting are in the electricity
Felt pad between pole deriving structure and negative cover and sealing ring, wherein：
The electrode lead-out structure include for connect the collector of core, as cathode pole and be set to described
Connecting column between collector and pole is arranged in the outer rim of the connecting column fluted；
The end set of the negative cover is useful for being arranged the first through hole of the connecting column, and the felt pad is set to institute
It states between groove and first through hole, the upper end of the felt pad rides upon the upper of appear on the stage terrace and the negative cover of the groove
Between end face, the sealing ring is arranged between the leave from office terrace and the lower face of first through hole of the groove.
Further, the groove be set in the connecting column outer rim by flange handle annular it is recessed
Slot.
Further, the groove is by being surrounded between the upper surface and the upper surface of the collector of the connecting column
Annular groove.
Further, it is provided with the first through hole coaxially simultaneously positioned at the lower end of the first through hole in the negative cover
And diameter is more than the second through-hole of the diameter of the first through hole, the depth of the first through hole is less than the depth of the groove,
The sealing ring is set between the step surface of second through-hole and the leave from office terrace of the groove.
Further, the sealing ring is O-ring.
Further, it is provided on the end face of the connecting column for the third through-hole with the pole clearance fit, institute
The upper end for stating the third through-hole between connecting column and pole on the connecting column is welded to connect, the lower end of the connecting column and institute
Collector is stated to be welded to connect.
Further, it is logical more than the third to be provided with and diameter coaxial with the third through-hole for the upper end of the connecting column
The fourth hole of bore dia, welding connects in the groove that the pole and fourth hole are formed between the connecting column and pole
It connects.
Further, position corresponding with the top of the third through-hole is provided with annular lack in the outer rim of the pole
Mouthful.
Further, the poles up position is provided with the diameter that diameter is less than the annular notch in the upper end of annular notch
Boss.
A kind of energy storage device, including shell, be set to the enclosure core and above-mentioned insulation and sealing structure, it is described
Between shell and negative cover, it is all made of and is welded to connect between the core and collector.
The utility model has the advantages that：
Compared with prior art, the insulation and sealing structure of the utility model and energy storage device are used draws in negative cover and electrode
Go out setting felt pad and sealing ring between structure and carry out insulated enclosure processing, insulation and sealing structure is with shell without directly connecting
It connects, this structure allows insulation and sealing structure as preparatory process into operation outside line, and without being rolled to shell
Slot processing, simplifies production process and assembly process, has saved assembly time, improve production efficiency.The utility model uses
The mode that felt pad and sealing ring are separately handled so that felt pad is not with electrolyte contacts, and felt pad is using general material
Insulating requirements can be met, sealing ring is general-purpose device, and model is smaller, reduces cost.The insulated enclosure of the utility model
Structure and energy storage device are simple in structure, and sealed ring deformation amount is easily controllable, and sealing consistency is preferable, is not in unqualified substantially
Phenomenon.
Description of the drawings
Fig. 1 is the structural schematic diagram of the first insulation and sealing structure in the prior art；
Fig. 2 is the structural schematic diagram of second of insulation and sealing structure in the prior art；
Fig. 3 is the structural schematic diagram of the insulation and sealing structure of the utility model；
Fig. 4 is the structural schematic diagram of the insulation and sealing structure electrode lead-out structure of the utility model；
Fig. 5 is the structural schematic diagram of the energy storage device of the utility model.
Specific implementation mode
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
On the one hand, the utility model provides a kind of insulation and sealing structure, and as shown in Figure 3 and Figure 4, including electrode draws knot
Structure, the negative cover 16 for connected with outer casing 15 and the felt pad 9 being arranged between electrode lead-out structure and negative cover 13 and sealing
Circle 10, wherein：
Electrode lead-out structure include for connect the collector 14 of core 18, as cathode pole 11 and be set to collection
Fluted 12-1 is arranged in the outer rim of connecting column 12 in connecting column 12 between fluid 14 and pole 11；
The end set of negative cover 13 is useful for being arranged the first through hole 13-1 of connecting column, and felt pad 9 is set to groove 12-
Between 1 and first through hole 13-1, the upper end of felt pad 9 ride upon appear on the stage terrace and the negative cover 13 of groove 12-1 upper surface it
Between, sealing ring 10 is arranged between the leave from office terrace and the lower face of first through hole 13-1 of groove 12-1.
The insulation and sealing structure of the utility model use between negative cover 14 and electrode lead-out structure be arranged felt pad 9 and
Sealing ring 10 carries out insulated enclosure processing, and with shell 15 without being directly connected to, this structure to insulate insulation and sealing structure
Sealing structure can be used as preparatory process into operation outside line, and without carrying out slot rolling processing to shell 15, simplify production
Process and assembly process, have saved assembly time, improve production efficiency.The utility model is used felt pad 9 and sealing ring
10 modes separately handled so that for felt pad 9 not with electrolyte contacts, felt pad 9 can meet insulation using general material
It is required that sealing ring 10 is general-purpose device, and model is smaller, reduces cost.The insulation and sealing structure of the utility model is simple, close
10 deflection of seal is easily controllable, and sealing consistency is preferable, is not in unqualified phenomenon substantially.
As shown in figure 4, groove 12-1 can be the annular handled by flange being set in 12 outer rim of connecting column
Groove.It gets out of a predicament or an embarrassing situation the negative cover 13 for placing felt pad 9 is nested with the annular groove in the connecting column 12 for placing sealing ring 10
After on face, by the upper end to connecting column 12 handle toward the flange of outer, the upper surface of connecting column 12 is made to form groove 12-
1 terrace and step surface is pressed on the upper end of felt pad 9 thereon of appearing on the stage, you can by negative cover 13, felt pad 9, sealing ring 10
It is fixedly connected with connecting column 12.
Certainly, groove 12-1 can also be the ring by being surrounded between the upper surface and the upper surface of collector 14 of connecting column 12
Connected in star.The negative cover 13 for placing felt pad 9 can be from the bottom up nested in the outer rim of connecting column 12 by this structure, and be made
The terrace of appearing on the stage of groove 12-1 is pressed on the upper end of felt pad 9, and sealing ring 10 is nested with from the bottom up in connecting column 12 later
In outer rim, and sealing ring 10 is made to be pressed on the lower face of first through hole 13-1, later welds connecting column 12 and collector 14
Connection makes the upper surface of collector 14 form the leave from office terrace of groove 12-1.
As shown in figure 3, in negative cover 13 positioned at first through hole 13-1 lower end be preferably provided with it is same with first through hole 13-1
The depth h1 of second through-hole 13-2 of the diameter of axis and diameter more than first through hole 13-1, first through hole 13-1 are less than groove
The depth h2 of 12-1, sealing ring 10 are set between the step surface of the second through-hole 13-2 and the leave from office terrace of groove 12-1.It is this
Structure can reduce the weight of negative cover 13, keep the structure of negative cover 13 more reasonable.The depth h2 of its further groove 12-1 and
The difference of the depth h1 of one through-hole 13-2 should ensure that the deflection of sealing ring 10.
Preferably, sealing ring 10 can be O-ring.O-ring has simple in structure, at low cost, the small feature of sealing effect.
Further, the third through-hole 12- with 11 clearance fit of pole is preferably provided on the end face of connecting column 12
2, the upper end of the third through-hole 12-2 between connecting column 12 and pole 11 on connecting column 11 is welded to connect, the lower end of connecting column 11
It is welded to connect with collector 14.It is gap-matched to be welded between the connecting column 12 of the utility model, pole 11, collector 14 and connect
Connection type, under the premise of ensureing stable connection, in assembling process without cooled down to parts or heated up and
Pre-determined bit processing, saves the time, improves production efficiency；And the requirement to the machining accuracy of part is relatively low, it is easy to accomplish,
The qualification rate of product can be largely improved, production and processing cost is reduced.
In order to increase the welding contact area between connecting column 12 and pole 11, the upper end of connecting column 13 is provided with and third
Through-hole 12-2 is coaxial and diameter is more than the fourth hole 12-4 of third through-hole 12-2 diameters, in pole between connecting column 12 and pole 11
It is welded to connect in the groove that column 11 is formed with fourth hole 12-4.
It is of course also possible to be that position corresponding with the top of third through-hole 12-2 is provided with ring in the outer rim of pole 11
V notch v 11-1.It is welded to connect in the groove that pole 11 is formed with annular notch 11-1 between connecting column 12 and pole 11.
Further, the upper end of annular notch 11-1 is provided with diameter on pole 11 and is less than the straight of annular notch 11-1
The boss 11-2 of diameter.Boss 11-2 is for the exit as electrode lead-out structure.
In addition, in order to easily facilitate the welding between connecting column 12 and collector 14, and increase welding surface between the two
The lower end of product, third through-hole 12-2 is also provided with and diameter coaxial with third through-hole 12-2 less than third through-hole 12-2's
The fifth hole 12-3 of diameter.
On the other hand, the utility model provides a kind of energy storage device, as shown in figure 5, including shell 15, being set to shell 15
Internal core 18 and above-mentioned insulation and sealing structure, are adopted between shell 15 and negative cover 13, between core 18 and collector 14
With being welded to connect.
The energy storage device of the utility model is used is arranged felt pad 9 and sealing between negative cover 14 and electrode lead-out structure
Circle 10 carries out insulated enclosure processing, and for insulation and sealing structure with shell 15 without being directly connected to, this structure makes insulated enclosure
Structure can be used as preparatory process into operation outside line, and without carrying out slot rolling processing to shell 15, simplify production process
And assembly process, assembly time has been saved, production efficiency is improved.The utility model, which uses, divides felt pad 9 and sealing ring 10
Open the mode of processing so that for felt pad 9 not with electrolyte contacts, felt pad 9 can meet insulating requirements using general material,
Sealing ring 10 is general-purpose device, and model is smaller, reduces cost.The energy storage device of the utility model is simple in structure, sealing ring
10 deflections are easily controllable, and sealing consistency is preferable, is not in unqualified phenomenon substantially.Meanwhile the energy storage of the utility model
The shell 15 of device need not carry out external slot rolling processing, reduce manufacturing procedure, and core 18 is not squeezed by external force, can be very
Good guarantee energy storage device internal organization is indeformable, is conducive to extend the service life of energy storage device；In addition, welding is to lead
Best connection type in electrical connection can increase the contact area between parts, reduce contact internal resistance, to advantageously reduce
On welding effect substantially without influence, thereby increase electrode lead-out mode can for the internal resistance of energy storage device, high temperature or low temperature environment
By stability, it is conducive to extend the service life of energy storage device.
Energy storage device in the utility model preferably includes ultracapacitor and battery.
The other end electrode lead-out structure of the energy storage device of the utility model includes connecting the flow collection sheet 16 of core 18 and making
End set for the extraction lid 17 of anode, flow collection sheet 16 has blind hole, draws the outer rim gap inserting of lid 17 in the blind hole, collection
The outer rim gap inserting of flow 16 is in the endoporus of shell 15, the end of flow collection sheet 16, the end for drawing lid 17 and shell 15
End is connected by the way of once welding.
The installation step of the energy storage device of the utility model is as follows：
Step 1：Collector 14 and flow collection sheet 16 are respectively welded on the upper/lower terminal face for being fixed on core 18, later will
Three is integrally nested in the endoporus of shell 15；
Step 2：Felt pad 9 is placed in the first through hole 13-1 of negative cover 13, and the upper end of felt pad 9 is made to ride upon
On the upper surface of negative cover 13, the two is integrally nested with the leave from office in the groove 12-1 in the connecting column 12 for being placed with sealing ring 10
On terrace, by the upper end to connecting column 12 handle toward the flange of outer, the upper surface of connecting column 12 is made to form groove 12-
1 terrace and step surface is pressed on the upper end of felt pad 9 thereon of appearing on the stage, thus by negative cover 13, felt pad 9, sealing ring 10
It is attached to fix with connecting column 12 and forms cap assemblies, while sealing ring 10 generates compressive deformation and realizes sealing；
Step 3：Cap assemblies in step 2 are integrally positioned at the endoporus of shell 15, while the bottom surface pressure of connecting column 12
Tightly on the upper surface of collector 14, negative cover 13 and shell 15 are welded and fixed in the end of shell 15 later, turned
It connects with collector 14 weld at the fourth hole 12-3 of column 12 and achieve a fixed connection；
Step 4：It is nested with pole 11 in the first half of the third through-hole 12-2 of connecting column 12, in the upper end of third through-hole 12-2
Connecting column 12 and pole 11 are welded and fixed, an electrode of energy storage device is thus drawn；
Step 5：Lid 17 will be drawn be nested in the blind hole of flow collection sheet 16, and to drawing the end of lid 17, flow collection sheet 16
End and the end of shell 15 are once welded and fixed, another electrode of energy storage device is thus drawn.
In conclusion during being assembled to the energy storage device of the utility model using above-mentioned assembly technology, it is not required to
The processing such as to cool down to each parts or be heated up and be pre-positioned, and save the time, improve production efficiency；And to zero
The requirement on machining accuracy of part is relatively low, realization easy to process, can largely improve the qualification rate of product, reduce production and processing at
This；Meanwhile core 18 is not squeezed in assembling process by external force, can be good at ensureing the constant of its internal organizational structure
Shape is conducive to extend the service life of energy storage device.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of insulation and sealing structure, which is characterized in that the negative cover including electrode lead-out structure, for connected with outer casing and setting
Felt pad between the electrode lead-out structure and negative cover and sealing ring, wherein：
The electrode lead-out structure include for connect the collector of core, as cathode pole and be set to the afflux
Connecting column between body and pole is arranged in the outer rim of the connecting column fluted；
The end set of the negative cover is useful for being arranged the first through hole of the connecting column, and the felt pad is set to described recessed
Between slot and first through hole, the upper end of the felt pad rides upon the upper surface of the appear on the stage terrace and the negative cover of the groove
Between, the sealing ring is arranged between the leave from office terrace and the lower face of first through hole of the groove.
2. insulation and sealing structure according to claim 1, which is characterized in that the groove is to be set to outside the connecting column
The annular groove handled by flange on edge.
3. insulation and sealing structure according to claim 1, which is characterized in that the groove is the upper end by the connecting column
The annular groove surrounded between face and the upper surface of the collector.
4. according to any insulation and sealing structure in claims 1 to 3, which is characterized in that be located at institute in the negative cover
The lower end for stating first through hole is provided with and diameter coaxial with the first through hole is more than the diameter of the first through hole second
Through-hole, the depth of the first through hole are less than the depth of the groove, and the sealing ring is set to the step of second through-hole
Between face and the leave from office terrace of the groove.
5. insulation and sealing structure according to claim 4, which is characterized in that the sealing ring is O-ring.
6. insulation and sealing structure according to any one of claims 1 to 3, which is characterized in that set on the end face of the connecting column
It is equipped with for the third through-hole with the pole clearance fit, the third between the connecting column and pole on the connecting column
The upper end of through-hole is welded to connect, and the lower end of the connecting column is welded to connect with the collector.
7. insulation and sealing structure according to claim 6, which is characterized in that the upper end of the connecting column be provided with it is described
Third through-hole is coaxial and diameter is more than the fourth hole of the third through-hole diameter, in the pole between the connecting column and pole
It is welded to connect in the groove that column is formed with fourth hole.
8. insulation and sealing structure according to claim 6, which is characterized in that logical with the third in the outer rim of the pole
The corresponding position in top in hole is provided with annular notch.
9. insulation and sealing structure according to claim 8, which is characterized in that the poles up position is in the upper end of annular notch
It is provided with the boss that diameter is less than the diameter of the annular notch.
10. a kind of energy storage device, which is characterized in that including shell, be set to the enclosure core and claim 1 to
9 any insulation and sealing structures, are all made of between the shell and negative cover, between the upper end and collector of the core
It is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721507311.2U CN207651539U (en) | 2017-11-13 | 2017-11-13 | Insulation and sealing structure and energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721507311.2U CN207651539U (en) | 2017-11-13 | 2017-11-13 | Insulation and sealing structure and energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207651539U true CN207651539U (en) | 2018-07-24 |
Family
ID=62889215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721507311.2U Active CN207651539U (en) | 2017-11-13 | 2017-11-13 | Insulation and sealing structure and energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207651539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420892A (en) * | 2022-01-12 | 2022-04-29 | 宁波久鼎新能源科技有限公司 | Improved generation lithium cell positive terminal sealing structure |
| WO2023206451A1 (en) * | 2022-04-29 | 2023-11-02 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electrical device |
-
2017
- 2017-11-13 CN CN201721507311.2U patent/CN207651539U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420892A (en) * | 2022-01-12 | 2022-04-29 | 宁波久鼎新能源科技有限公司 | Improved generation lithium cell positive terminal sealing structure |
| WO2023206451A1 (en) * | 2022-04-29 | 2023-11-02 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electrical device |
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