CN211320236U - Gas circuit device of soft package battery - Google Patents
Gas circuit device of soft package battery Download PDFInfo
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- CN211320236U CN211320236U CN202020144763.4U CN202020144763U CN211320236U CN 211320236 U CN211320236 U CN 211320236U CN 202020144763 U CN202020144763 U CN 202020144763U CN 211320236 U CN211320236 U CN 211320236U
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- base
- needle bar
- gas circuit
- circuit device
- channel
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a laminate polymer battery's gas circuit device, include: the needle bar comprises a base and a needle bar, wherein one end of the base is connected with one end of the needle bar, the other end of the base is provided with a first end face, the other end of the needle bar is provided with a second end face opposite to the first end face, and an air channel penetrating through the base and the needle bar is formed between the first end face and the second end face; the end of the first end face in the base is a vacuum adsorption connecting end, a first limiting part is arranged on the outer wall of the base close to the vacuum adsorption connecting end, a second limiting part is arranged on the outer wall of the base close to the needle rod, and a positioning clamping groove is formed between the first limiting part and the second limiting part; the needle bar is used for being placed in a reserved air bag of the soft package battery. Realize the inside gas circuit passageway with outside intercommunication of laminate polymer battery, gas in can in time discharging laminate polymer battery can also become vacuum system with the negative pressure and be connected, realize laminate polymer battery's negative pressure and become, can reduce plastic-aluminum membrane air pocket size, reduce cost.
Description
Technical Field
The utility model relates to a laminate polymer battery technical field, more specifically relates to a laminate polymer battery's gas circuit device.
Background
The new energy battery is used as a power source of a new energy automobile and is rapidly developed in recent years, wherein the soft package battery has the characteristics of high safety performance, light weight, high energy density, small internal resistance, long service life and the like, is widely applied to commercial vehicles and passenger vehicles, and occupies a large proportion in the lithium ion battery; formation is an important process in the manufacturing process of the soft package battery.
At present, the soft package battery formation process mainly depends on applying larger pressure to discharge generated gas into a reserved air bag of the battery, but the existing reserved air bag needs larger aluminum-plastic film formation, so that the waste of the aluminum-plastic film is serious, and meanwhile, the requirements on a pressurization system and a clamp of the pressure formation equipment are higher, and the cost is serious.
Therefore, a soft package battery gas circuit device is needed, which can be connected with a vacuum system to realize negative pressure formation, and meanwhile, the size of the aluminum plastic film reserved airbag is reduced, and the cost is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a laminate polymer battery's gas circuit device realizes laminate polymer battery and negative pressure and becomes vacuum system and be connected to realize the negative pressure and become the technique, reduce plastic-aluminum membrane air pocket size, reduce cost.
In order to achieve the above object, the utility model provides a laminate polymer battery's gas circuit device, include: the needle bar comprises a base and a needle bar, wherein one end of the base is connected with one end of the needle bar, the other end of the base is provided with a first end face, the other end of the needle bar is provided with a second end face opposite to the first end face, and an air channel penetrating through the base and the needle bar is formed between the first end face and the second end face;
the other end of the base is a vacuum adsorption connecting end, a first limiting part is arranged on the outer wall of the base close to the vacuum adsorption connecting end, a second limiting part is arranged on one end of the outer wall of the base close to the needle rod, and a positioning clamping groove is formed between the first limiting part and the second limiting part;
the needle bar is used for being placed in a reserved air bag of the soft package battery.
Optionally, the base and the needle rod are both tubular, and the base coincides with the axis of the needle rod;
the needle bar is characterized in that a first channel is arranged in the base, a second channel is arranged on the inner wall of the needle bar, and the first channel is communicated with the second channel to form the air path channel.
Optionally, the first limiting portion and the second limiting portion are both annular protrusions protruding from the outer wall surface of the base.
Optionally, one surface of the first limiting portion, which faces away from the second limiting portion, is provided with a conical surface protruding towards the vacuum adsorption connecting end.
Optionally, the outer diameter of the base is greater than the outer diameter of the needle shaft.
Optionally, the diameter of the first channel is larger than the diameter of the second channel.
Optionally, the base has a wall thickness greater than a wall thickness of the needle shaft.
Optionally, a joint of the first channel and the second channel is a reducing structure.
Optionally, the inner wall of the first channel is provided with an annular groove.
Optionally, the edge of the end of the needle rod away from the base is provided with a chamfer.
The beneficial effects of the utility model reside in that:
in laminate polymer battery gas circuit device's needle bar can put into laminate polymer battery's reservation gasbag, the gas circuit passageway through the formation of base and needle bar realizes laminate polymer battery inside and outside intercommunication, can become vacuum system connection with the negative pressure through setting up the vacuum adsorption link in base one end, the realization becomes laminate polymer battery's negative pressure, it becomes vacuum system's connection to set up first spacing portion be convenient for with the negative pressure, the spacing portion of second is convenient for fix a position the needle bar and inserts the location draw-in groove that forms between the first spacing portion of length of reserving the gasbag and the spacing portion of second and be convenient for outside positioning mechanism location.
The apparatus of the present invention has other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention with reference to the attached drawings, in which like reference numerals generally represent like parts.
Fig. 1 shows a schematic diagram of a pouch battery gas circuit device according to an embodiment of the present invention.
Fig. 2 shows a schematic diagram of a pouch battery gas circuit device arranged in a pouch battery reserve airbag according to an embodiment of the present invention.
Description of reference numerals:
1. a base; 2. a needle bar; 3. a first limiting part; 4. a second limiting part; 5. positioning the clamping groove; 6. a first channel; 7. a second channel; 8. a diameter-variable structure; 9. an annular groove; 10. a pouch cell; 11. and reserving an air bag.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 shows a schematic diagram of a pouch battery gas circuit device according to an embodiment of the present invention.
As shown in fig. 1, according to the utility model discloses a laminate polymer battery's gas circuit device, include: the needle bar comprises a base 1 and a needle bar 2, wherein one end of the base 1 is connected with one end of the needle bar 2, the other end of the base 1 is provided with a first end face, the other end of the needle bar 2 is provided with a second end face opposite to the first end face, and an air channel penetrating through the base 1 and the needle bar 2 is formed between the first end face and the second end face;
the other end of the base 1 is a vacuum adsorption connecting end, a first limiting part 3 is arranged on the outer wall of the base 1 close to the vacuum adsorption connecting end, a second limiting part 4 is arranged on one end of the outer wall of the base 1 close to the needle rod 2, and a positioning clamping groove 5 is formed between the first limiting part 3 and the second limiting part 4;
the needle bar 2 is used for being placed in a reserved air bag 11 of the soft package battery 10.
Specifically, laminate polymer battery 10 reserves can be put into to the needle bar 2 of laminate polymer battery gas circuit device in the plastic-aluminum membrane gasbag, the gas circuit passageway of the inside and outside intercommunication of laminate polymer battery 10 is realized through the gas circuit passageway that forms in base 1 and the needle bar 2, can become vacuum system through setting up in the vacuum adsorption link of base 1 one end and become vacuum system with the negative pressure and be connected, the realization becomes laminate polymer battery 10's negative pressure, it becomes vacuum system's being connected to set up first spacing portion 3 be convenient for with the negative pressure, spacing 4 portions of second are convenient for fix a position the needle bar 2 and insert the positioning channel section 5 that forms between the first spacing portion 3 of length of reserving gasbag 11 and the spacing portion 4 of second and are convenient for outside positioning mechanism location.
In the embodiment, the base 1 and the needle bar 2 are both tubular, and the axes of the base 1 and the needle bar 2 are superposed; a first channel 6 is arranged in the base 1, a second channel 7 is arranged in the needle rod 2, and the first channel 6 is communicated with the second channel 7 to form an air channel.
Specifically, referring to fig. 1, the base 1 and the needle bar 2 are both tubular hollow cylinders, the first channel 6 in the base 1 is communicated with the second channel 7 in the needle bar 2, the axis of the cylinder where the base 1 is located is coincident with the axis of the cylinder where the needle bar 2 is located, and the cross sections of the first channel 6 and the second channel 7 in the direction perpendicular to the axis of the base 1 are both circular. The needle bar 2 adopts a cylindrical structure to prevent the damage of the aluminum plastic film inside the reserved air bag 11 and is convenient to process.
In this embodiment, the first position-limiting portion 3 and the second position-limiting portion 4 are both annular protrusions protruding from the outer wall surface of the base 1. One surface of the first limiting part 3 back to the second limiting part 4 is provided with a conical surface protruding towards the vacuum adsorption connecting end.
Specifically, referring to fig. 1, the first limiting portion 3 and the second limiting portion 4 are both annular protrusions protruding from the sidewall surface of the base 1, wherein the first limiting portion 4 has a tapered surface protruding toward the vacuum adsorption connection end, the first limiting portion 3 is thickened compared with the second limiting portion 4, the first limiting portion 3 is mainly used for positioning when being connected with a vacuum negative pressure system, and can prevent the deformation of the first limiting portion 3 caused by stress when the vacuum system is connected by pressing; two opposite surfaces of the first limiting part 3 and the second limiting part 4 are planes perpendicular to the axial direction of the base 1, an annular positioning clamping groove 5 is formed between the first limiting part 3 and the second limiting part 4, and the positioning clamping groove 5 is mainly used for positioning and mounting when the gas circuit device is inserted into the reserved air bag 11 by an external positioning mechanism and is convenient for plugging and unplugging a matched sealing rubber plug (not shown); the second limiting part 4 is mainly used for limiting the length of the needle bar 2 when the needle bar is inserted into the reserved air bag 11, and the base 1 is prevented from being partially inserted into the reserved air bag 11.
In this embodiment, the outer diameter of the base 1 is larger than the outer diameter of the needle bar 2. The diameter of the first passage 6 is larger than the diameter of the second passage 7. The tube wall thickness of the base 1 is larger than that of the needle bar 2. The junction of the first channel 6 and the second channel 7 is a reducing structure 8.
Specifically, referring to fig. 1, the outer diameter of the base 1 is designed to be larger than the inner diameter of the needle bar 2, and the inner diameter is designed to be slightly larger than the inner diameter of the needle bar 2, so that the vacuum absorption connection end facilitates the air path sealing with the vacuum pipeline of the vacuum negative pressure system. The junction of the air channel in the base 1 and the air channel in the needle rod 2 is in a reducing design, so that a supporting needle of an external positioning mechanism can be guided into a lower end pipeline, and the device can be conveniently installed in the reserved air bag 11; the outer diameter of the base 1 is designed to be larger, and the side wall is thicker than that of the needle rod 2, so that the edge can be well sealed when the base is connected with a vacuum pipeline of a vacuum negative pressure system; the design of the side wall of the base 1 is slightly thick, the positioning and supporting effects can be achieved, the pipeline positioned in the middle of the base 1 can not be deformed when being clamped and applied with force by an external positioning mechanism, and meanwhile, the base 1 can be prevented from being deformed or damaged when being connected with a vacuum pipeline of a vacuum negative pressure system in a pressurization mode. In the embodiment, the needle rod 2 is designed to have an inner diameter of 1mm and an outer diameter of 2mm, and is subjected to hot soft sealing with the aluminum plastic film of the soft package battery 10, so that the sealing property between the pipeline and the aluminum plastic film can be effectively ensured; the outer diameter of the base tube 1 is designed to be 10mm, the inner diameter reducing design is changed from 3mm to 1mm, and the pipeline supporting needle can be guided into the second channel of the needle rod 2 before heat sealing; the wall thickness of the vacuum adsorption connecting end of the base tube 1 is designed to be 3.5mm, so that the edge can be well sealed when the base tube is connected with a vacuum pipeline; the wall thickness of the middle annular groove part of the base tube 1 is designed to be 3.5mm-4.5mm, so that the base tube plays a role in positioning and supporting and can ensure that the middle positioning pipeline of the base tube 1 is stressed and has no deformation. In other embodiments of the present invention, those skilled in the art can design the inner diameter, the outer diameter and the wall thickness of each pipeline according to actual requirements, and the description is omitted here.
In this embodiment, the inner wall of the first channel 6 at the vacuum adsorption connection end of the susceptor 1 is provided with an annular groove 9.
Specifically, the annular groove 9 of the gas circuit passageway inner wall of base 1 vacuum adsorption link is used for cooperating with supporting sealed plug, and sealed plug can set up with annular groove 9 complex annular arch, can realize reaching good gas tightness to the spacing of plug, can also prevent effectively that the plug from droing. The utility model discloses an in other embodiments, the vacuum adsorption link of parent tube 1 can also utilize ripe square plug to seal, effectively guarantees the upper end opening at the sealed of course of working.
In this embodiment, the one end edge that base 1 was kept away from to needle bar 2 is equipped with the chamfer, can avoid fish tail laminate polymer battery 10's plastic-aluminum membrane.
In this embodiment, the base 1 is integrally formed with the needle bar 2.
Specifically, base 1 and needle bar 2 all adopt insulating plastics material to make, and preferred PP (polypropylene) material can provide overall structure's intensity through injection molding technology integrated into one piece.
Referring to fig. 2, the working principle of the pouch battery gas circuit device of this embodiment is as follows:
before the soft package battery 10 negative pressure becomes the process, set up whole or most of this device needle bar 2 in the plastic-aluminum membrane gasbag that soft package battery 10 reserved, then realize sealing connection with plastic-aluminum membrane gasbag and needle bar 2 through thermal packaging or ultrasonic packaging, can the gas circuit passageway of this device in time exhaust gas when soft package battery 10 produced gas, the vacuum adsorption link through this device base 1 and the vacuum line butt joint of the vacuum system of negative pressure formation realize the negative pressure formation of soft package battery 10, can also realize the sealed to the gas circuit passageway through supporting plug after the negative pressure formation.
Through the utility model discloses a laminate polymer battery gas circuit device can form the gas circuit passageway of laminate polymer battery 10 inside and outside intercommunication, and this device can also become vacuum system with the negative pressure simultaneously and be connected to realize the negative pressure and become the technique, can in time discharge laminate polymer battery 10 through this device and reserve the gas in gasbag 11, can reach the size that reduces reservation gasbag 11 (plastic-aluminum membrane air pocket), and reduce the cost that the pressfitting becomes equipment.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a laminate polymer battery's gas circuit device which characterized in that includes:
the needle bar comprises a base and a needle bar, wherein one end of the base is connected with one end of the needle bar, the other end of the base is provided with a first end face, the other end of the needle bar is provided with a second end face opposite to the first end face, and an air channel penetrating through the base and the needle bar is formed between the first end face and the second end face;
the other end of the base is a vacuum adsorption connecting end, a first limiting part is arranged on the outer wall of the base close to the vacuum adsorption connecting end, a second limiting part is arranged on one end of the outer wall of the base close to the needle rod, and a positioning clamping groove is formed between the first limiting part and the second limiting part;
the needle bar is used for being placed in a reserved air bag of the soft package battery.
2. The gas circuit device of the laminate battery according to claim 1, wherein the base and the needle bar are both tubular, and the base coincides with the axis of the needle bar;
the needle bar is provided with a first channel, a second channel and a gas path channel.
3. The gas circuit device of the soft package battery according to claim 2, wherein the first and second limiting portions are both annular protrusions protruding from the outer wall surface of the base.
4. The gas circuit device of the soft package battery according to claim 3, wherein a conical surface protruding toward the vacuum adsorption connection end is formed on a surface of the first limiting portion facing away from the second limiting portion.
5. The gas circuit device of the pouch battery according to claim 2, wherein the outer diameter of the base is larger than the outer diameter of the needle rod.
6. The gas circuit device of the soft package battery according to claim 2, wherein the diameter of the first channel is larger than the diameter of the second channel.
7. The gas circuit device of the pouch battery according to claim 2, wherein the tube wall thickness of the base is larger than that of the needle rod.
8. The gas circuit device of the soft package battery according to claim 2, wherein a junction of the first channel and the second channel is a diameter-variable structure.
9. The gas circuit device of the soft package battery according to claim 2, wherein the inner wall of the first channel is provided with an annular groove.
10. The gas circuit device of the soft package battery according to claim 1, wherein the edge of the end of the needle rod away from the base is provided with a chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020144763.4U CN211320236U (en) | 2020-01-22 | 2020-01-22 | Gas circuit device of soft package battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020144763.4U CN211320236U (en) | 2020-01-22 | 2020-01-22 | Gas circuit device of soft package battery |
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| Publication Number | Publication Date |
|---|---|
| CN211320236U true CN211320236U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020144763.4U Active CN211320236U (en) | 2020-01-22 | 2020-01-22 | Gas circuit device of soft package battery |
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| CN (1) | CN211320236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7363010B2 (en) | 2020-09-25 | 2023-10-18 | エルジー エナジー ソリューション リミテッド | Gas removal device and gas removal method for secondary batteries |
-
2020
- 2020-01-22 CN CN202020144763.4U patent/CN211320236U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7363010B2 (en) | 2020-09-25 | 2023-10-18 | エルジー エナジー ソリューション リミテッド | Gas removal device and gas removal method for secondary batteries |
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| PP01 | Preservation of patent right |
Effective date of registration: 20220510 Granted publication date: 20200821 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220726 Granted publication date: 20200821 |
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