CN209656124U - A kind of test device of lithium battery interior volume - Google Patents
A kind of test device of lithium battery interior volume Download PDFInfo
- Publication number
- CN209656124U CN209656124U CN201920285314.9U CN201920285314U CN209656124U CN 209656124 U CN209656124 U CN 209656124U CN 201920285314 U CN201920285314 U CN 201920285314U CN 209656124 U CN209656124 U CN 209656124U
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- inflator
- adapter
- battery
- air flue
- air
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Abstract
The utility model discloses a kind of test devices of lithium battery interior volume, it include: inflator, air gauge and the adapter for connecting tested battery, wherein: the side wall of inflator is equipped with volume markings line, it is equipped with the air flue of perforation inside adapter, passes through connector mutual conduction between air gauge, inflator and air flue three.Air flue is arranged by setting adapter, inflator and air gauge in the utility model inside adapter, and passes through connector mutual conduction between the inflator, air gauge and air flue three.When testing battery, the rupture pressure disc inside tested battery anti-explosion valve is removed in advance, connect adapter with the tested battery, and the air flue in adapter is connected through explosion-proof valve with the inside of the battery；Then the gas of determined volume is injected into the mesuring battary by inflator, finally according to the barometric pressure value of corresponding display, internal cell volume can be calculated, the method is simple and reliable convenient for operation.
Description
Technical field
The utility model relates to cell manufacturing techniques field more particularly to a kind of test devices of lithium battery interior volume.
Background technique
The performance of how many pairs of a batteries of remaining space inside volume and safety be extremely after encapsulation for lithium ion battery
Close important, whether it is related to injecting electrolytic solution amount can reach requirement, while the size of air pressure inside exists when using battery
Large effect.Residual volume inside battery core after will clearly being encapsulated at the beginning of battery design, to evaluate reservoir quantity and interior
Whether the design of portion's pressure meets electrical property and security requirement.Current method is counted by theoretical calculation, three-dimensional simulation etc.
Volume is calculated, but all differs larger with practical, can only wait until ability after battery liquid-filling verifying as reference, the confirmation of actual parameter
It determines, the period is longer.
Utility model content
Technical problem present in technology based on the above background, the utility model proposes a kind of surveys of lithium battery interior volume
Trial assembly is set.
The utility model proposes a kind of lithium battery interior volume test device, comprising: inflator, air gauge and for connecting
Connect the adapter of tested battery, in which:
The side wall of inflator is equipped with volume markings line, and the air flue of perforation, air gauge, inflator and gas are equipped with inside adapter
Pass through connector mutual conduction between road three.
Preferably, connector is three-way connection；Adapter is fixedly mounted on a passage port of three-way connection, inflator and gas
Pressure table is respectively and fixedly installed to remaining two passage ports of three-way connection.
Preferably, inflator includes cylinder, is slidably mounted on inner barrel piston and fixes positioned at piston side and with piston
The piston rod of connection, in which: cylinder is tightly connected far from a port in one end and three-way connection of piston rod.
In the utility model, by setting adapter, inflator and air gauge, air flue, and the gas are set inside adapter
Pass through connector mutual conduction between cylinder, air gauge and air flue three.When testing battery, tested electricity is removed in advance
Rupture pressure disc inside the explosion-proof valve of pond connect adapter with the tested battery, and the air flue in adapter through explosion-proof valve and
The inside of the battery is connected；Then the gas of determined volume is injected into the mesuring battary by inflator, finally according to corresponding aobvious
The barometric pressure value shown, can calculate internal cell volume, and the method is simple and reliable convenient for operation.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of lithium battery interior volume test device structural schematic diagram；
Fig. 2 be the utility model proposes a kind of lithium battery interior volume test device working state schematic representation.
Specific embodiment
In the following, the technical solution of the utility model is described in detail by specific embodiment.
As shown in Figs. 1-2, Fig. 1 be the utility model proposes the structure of test device of lithium battery interior volume a kind of show
It is intended to；Fig. 2 be the utility model proposes a kind of lithium battery interior volume test device working state schematic representation.
Referring to Fig.1, the utility model proposes a kind of lithium battery interior volume test device, comprising: inflator 1, air pressure
Table 2 and adapter 3 for connecting battery, in which: the side wall of inflator 1 is equipped with volume markings line, is equipped with and passes through inside adapter 3
Logical air flue passes through 4 mutual conduction of connector between air gauge 2, inflator 1 and air flue three.
Referring to Fig. 2, the utility model is removed anti-inside tested battery A explosion-proof valve in advance when testing battery
Quick-fried film connect adapter 3 with the tested battery A, and the air flue in adapter 3 is tested battery A's with this through explosion-proof valve
Inside conducting；Then the gas that determined volume is injected in battery A is tested to this by inflator 1, finally according to the gas of corresponding display
The pressure value for pressing table 2, can calculate battery A internal volume, its working principles are as follows:
When being in fully on state between tested battery A, adapter 3, inflator 1, air gauge 2, calibration adapter 3,
Connector 4 and 2 internal cavities volume of air gauge are respectively that V turns, V is logical and V table；It is fixed based on The Ideal-Gas Equation and boyle
Known to rule: P1 (Vx+V0)=P2Vx, wherein P1 is that inflator 1 injects pressure 1atm, Vx=V electricity+V turns before determined volume gas
+ V leads to+V table, and V0 is that inflator 1 injects gas volume, and P2 is that inflator 1 injects the pressure after determined volume gas, passes through 1 note of inflator
Enter determined volume gas V0, corresponding atmospheric pressure value P2 is read after 2 stable reading of air gauge, can be calculated inside tested battery A
Volume V electricity.
In the present embodiment, connector 4 is three-way connection；Adapter 3 is fixedly mounted on a passage port of three-way connection, gas
Cylinder 1 is respectively and fixedly installed to remaining two passage ports of three-way connection with air gauge 2, and this layout type is simple, compact.Inflator
1 include cylinder, be slidably mounted on inner barrel piston and positioned at piston side and the piston rod that is fixedly connected with the piston, in which:
Cylinder is tightly connected far from a port in one end and three-way connection of piston rod, to realize note by pull piston rod
Gas/pumping action.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (3)
1. a kind of test device of lithium battery interior volume characterized by comprising inflator (1), air gauge (2) and for connecting
Connect the adapter (3) of battery, in which:
The side wall of inflator (1) is equipped with volume markings line, and the air flue of perforation, air gauge (2), inflator are equipped with inside adapter (3)
(1) and between air flue three pass through connector (4) mutual conduction.
2. a kind of test device of lithium battery interior volume according to claim 1, which is characterized in that connector (4) is
Three-way connection；Adapter (3) is fixedly mounted on a passage port of three-way connection, and inflator (1) and air gauge (2) are fixed respectively pacifies
Mounted in remaining two passage ports of three-way connection.
3. a kind of test device of lithium battery interior volume according to claim 1, which is characterized in that inflator (1) includes
Cylinder is slidably mounted on inner barrel piston and positioned at piston side and the piston rod that is fixedly connected with the piston, in which: cylinder is remote
It is tightly connected from a port in one end and three-way connection of piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285314.9U CN209656124U (en) | 2019-03-06 | 2019-03-06 | A kind of test device of lithium battery interior volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285314.9U CN209656124U (en) | 2019-03-06 | 2019-03-06 | A kind of test device of lithium battery interior volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209656124U true CN209656124U (en) | 2019-11-19 |
Family
ID=68526185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285314.9U Active CN209656124U (en) | 2019-03-06 | 2019-03-06 | A kind of test device of lithium battery interior volume |
Country Status (1)
| Country | Link |
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| CN (1) | CN209656124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551736A (en) * | 2021-06-02 | 2021-10-26 | 中煤科工集团淮北爆破技术研究院有限公司 | Volume calibration device and method for ultra-large irregular container |
-
2019
- 2019-03-06 CN CN201920285314.9U patent/CN209656124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551736A (en) * | 2021-06-02 | 2021-10-26 | 中煤科工集团淮北爆破技术研究院有限公司 | Volume calibration device and method for ultra-large irregular container |
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