CN220018854U - Inert gas recovery device for detecting battery tightness - Google Patents
Inert gas recovery device for detecting battery tightness Download PDFInfo
- Publication number
- CN220018854U CN220018854U CN202223259820.1U CN202223259820U CN220018854U CN 220018854 U CN220018854 U CN 220018854U CN 202223259820 U CN202223259820 U CN 202223259820U CN 220018854 U CN220018854 U CN 220018854U
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- Prior art keywords
- inert gas
- battery
- vacuum pump
- sealed cavity
- detector
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- 239000011261 inert gas Substances 0.000 title claims abstract description 81
- 238000011084 recovery Methods 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 15
- 239000001307 helium Substances 0.000 claims description 9
- 229910052734 helium Inorganic materials 0.000 claims description 9
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an inert gas recovery device for detecting battery tightness, and relates to the technical field of battery performance detection. The inert gas recovery device includes: the sealed cavity is used for placing a battery, and inert gas is contained in the battery; the vacuum pump is connected with the sealed cavity and is used for pumping inert gas in the sealed cavity after the battery tightness detection is completed; the switch valve is arranged on a connecting pipeline between the sealed cavity and the vacuum pump and is used for opening and closing a corresponding connecting pipeline; and the high-pressure tank is connected with the vacuum pump and is used for storing the inert gas pumped by the vacuum pump at high pressure. The utility model can recycle the inert gas after the battery tightness detection, improve the resource utilization rate and reduce the cost of tightness detection.
Description
Technical Field
The utility model relates to the technical field of battery performance detection, in particular to an inert gas recovery device for battery tightness detection.
Background
Generally, after the top cover of the power battery is connected with the shell, the tightness of the battery needs to be detected so as to ensure that the tightness of the power battery meets the use requirement and prevent defective products from flowing into the market. Inert gas, such as helium, is typically used to charge the cells and then the amount of inert gas spilled is detected to determine if the cells are leaking. Helium naturally escapes into the air after detection is completed, however, helium belongs to inert rare gas, is high in price, and directly escapes to cause great resource waste.
Therefore, how to provide an inert gas recovery device for detecting the tightness of a battery is a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model provides an inert gas recovery device for detecting the tightness of a battery, which can recover inert gas after the tightness detection of the battery, improve the utilization rate of resources and reduce the cost of tightness detection.
The utility model provides the following scheme:
an inert gas recovery device for battery tightness detection, comprising:
the sealed cavity is used for placing a battery, and inert gas is contained in the battery;
the vacuum pump is connected with the sealed cavity and is used for pumping inert gas in the sealed cavity after the battery tightness detection is completed;
the switch valve is arranged on a connecting pipeline between the sealed cavity and the vacuum pump and is used for opening and closing a corresponding connecting pipeline;
and the high-pressure tank is connected with the vacuum pump and is used for storing the inert gas pumped by the vacuum pump at high pressure.
Preferably, the inert gas recovery apparatus further comprises:
the detector is connected with the vacuum pump and is used for detecting the content of inert gas in a pipeline connected with the vacuum pump;
and three ends of the three-way valve are respectively connected with the sealing cavity, the vacuum pump and the detector.
Optionally, the sealed cavity and the battery are connected to a main pipe through a branch pipe respectively and then connected to the vacuum pump, and the switch valve is arranged at a position where the main pipe crosses the two branch pipes.
Optionally, the inert gas recovery device further comprises:
the transfer tank is connected between the vacuum pump and the high-pressure tank;
and the high-pressure pump is connected between the transfer tank and the high-pressure tank.
Optionally, the inert gas recovery device further comprises:
a battery tightness detection system comprising:
an inert gas source, the sealed cavity, the vacuum pump and the detector;
the vacuum pump is also communicated with the atmosphere and is used for pumping the gas in the battery and the sealed cavity to the atmosphere before the tightness detection is carried out;
the inert gas source comprises a gas cylinder and a valve, the gas cylinder is used for storing inert gas, the valve is used for opening and closing the gas cylinder, and the gas cylinder is connected with the inside of the battery to provide inert gas for the inside of the battery when the tightness detection is carried out;
when the detection is carried out, the detector is communicated with the sealed cavity so as to detect the content of inert gas in the sealed cavity.
Optionally, the vacuum pump is connected to the battery through the same line and to the sealed cavity through the same line when inert gas recovery and tightness detection are performed.
Optionally, the inert gas comprises helium and the detector comprises a helium detector.
According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects:
according to the inert gas recovery device provided by the utility model, through arranging the components such as the vacuum pump and the high-pressure tank, inert gas in the sealed cavity used in the process of detecting the tightness of the battery can be pumped out, and the inert gas can be stored by the high-pressure tank and then reused in the subsequent tightness detection, so that the resources can be greatly saved, the utilization rate of the resources can be improved, and the cost of detecting the tightness can be reduced.
Further, the recovery condition can be detected through the arrangement of the three-way valve and the detector, so that the thorough recovery of the inert gas is achieved.
Of course, embodiments of the present utility model do not necessarily achieve all of the advantages described above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an inert gas recovery device for battery tightness detection according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
It should be noted that, the descriptions of the directions of "left", "right", "upper", "lower", "top", "bottom", and the like of the present utility model are defined based on the relation of orientations or positions shown in the drawings, and are only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the structures must be constructed and operated in a specific orientation, and thus, the present utility model should not be construed as being limited thereto. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Aiming at the technical problems of the background technology, the utility model provides an inert gas recovery device for detecting the tightness of a battery. As shown in fig. 1, the inert gas recovery apparatus provided by the present utility model generally includes a sealed chamber 10, a vacuum pump 30, an on-off valve 40, and a high pressure tank 50. Specifically, the sealed cavity 10 is used for placing the battery 100, and the battery 100 is filled with inert gas. The inert gas may be charged when the tightness test is performed. The vacuum pump 30 is connected to the sealed cavity 10, and the vacuum pump 30 is used for pumping out inert gas in the battery 100 and the sealed cavity 10 after the tightness detection of the battery 100 is completed. The switch valve 40 is disposed on a connection line between the sealed cavity 10 and the vacuum pump 30, the switch valve 40 is used for opening and closing a corresponding connection line, and when the corresponding connection line is opened, the vacuum pump 30 can pump out inert gas corresponding to the connection line. The high-pressure tank 50 is connected with the vacuum pump 30, the high-pressure tank 50 is used for storing the inert gas pumped by the vacuum pump 30 at high pressure, and the inert gas in the high-pressure tank 50 can be further used for detecting the tightness of the battery 100. Wherein the on-off valve 40 may be a T-valve.
The inert gas recovery device can pump out the inert gas in the sealed cavity 10 after the tightness detection of the battery 100 by arranging the vacuum pump 30, the high-pressure tank 50 and other parts, and can be reused in the subsequent tightness detection after the inert gas is stored by the high-pressure tank 50, so that the resources can be greatly saved, the resource utilization rate is improved, and the cost of tightness detection is reduced.
The inert gas recovery device further includes a detector 60 and a three-way valve 20. The detector 60 is used for detecting the sealed cavity 10 and the inert gas content in the pipeline connecting the sealed cavity 10 and the detector 60. Three ends of the three-way valve are respectively connected with the sealed cavity 10, the vacuum pump 30 and the detector 60.
In the process of detecting the content of the inert gas, the three-way valve 20 is firstly communicated with the vacuum pump 30 and the sealed cavity 10, the sealed cavity 10 is vacuumized, the sealed cavity 10 is kept in a vacuum environment, then the sealed cavity 10 is communicated with the detector 60, after the detector 60 detects the inert gas, the connection between the sealed cavity 10 and the detector 60 is closed, and the inert gas in the sealed cavity 10 and the pipeline is absorbed through the vacuum pump 30. After a period of time, there is a situation that whether recovery is completely unknown, at this time, connection of the vacuum pump 30 and the sealed cavity 10 can be blocked, and the sealed cavity 10 and the detector 60 are communicated, whether recovery is complete is judged through data of the detector 60, if so, recovery is completed, otherwise, connection of the vacuum pump 30 and the sealed cavity 10 is continued, and the sealed cavity 10 and the detector 60 are blocked, and the above-mentioned processes are circulated until recovery is completed.
The advantage of this arrangement is that recovery can be started as long as the inert gas is detected, and recovery can be detected by the arrangement of the three-way valve 20 and the detector 60, so as to achieve thorough recovery of the inert gas and increase recovery amount.
Preferably, in one example of the present utility model, the sealed chamber 10 and the battery 100 are connected to a manifold through one branch pipe, respectively, and then connected to the vacuum pump 30, and the switching valve 40 is disposed at a position where the manifold crosses the two branch pipes. Thus, the consumption of the pipeline can be saved, and the recovery cost is saved.
Further, in one example of the present utility model, the inert gas recovery apparatus further includes a transfer tank 70 and a high pressure pump 80. The transfer tank 70 is connected between the vacuum pump 30 and the high-pressure tank 50, and the high-pressure pump 80 is connected between the transfer tank 70 and the high-pressure tank 50. The inert gas pumped by the vacuum pump 30 is stored by the transfer tank 70, and then the inert gas is stored in the high-pressure tank 50 after being pressurized by the high-pressure pump 80.
Preferably, in one example of the present utility model, the inert gas recovery device further comprises a battery tightness detection system generally comprising an inert gas source 90, the sealed cavity 10, the vacuum pump 30 and the detector 60. Specifically, the vacuum pump 30 is also in communication with the atmosphere, and the vacuum pump 30 is configured to pump the gas in the sealed cavity 10 to the atmosphere before the tightness test is performed. A plurality of outlets may be provided on the vacuum pump 30 to communicate with the atmosphere, the sealed cavity 10, the battery 100, the high-pressure tank 50, and the detector 60, respectively. The inert gas source 90 includes a gas cylinder for storing inert gas and a valve for opening and closing the gas cylinder, and the gas cylinder is connected with the inside of the battery 100 to supply inert gas into the battery 100 when the tightness is detected. The detector 60 is in communication with the sealed chamber 10 to detect the inert gas content within the sealed chamber 10. By the arrangement, the sealing cavity 10, the vacuum pump 30 and the detector 60 can play a corresponding role in the detection of the tightness, play a corresponding role in the recovery process of the inert gas, maximize the utilization of components and save the cost.
Alternatively, in one example of the utility model, the inert gas comprises helium and the detector 60 comprises a helium detector.
The above description of the technical solution provided by the present utility model has been provided in detail, and specific examples are applied to illustrate the structure and implementation of the present utility model, and the above examples are only used to help understand the method and core idea of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (7)
1. An inert gas recovery device for battery tightness detection, comprising:
the sealed cavity is used for placing a battery, and inert gas is contained in the battery;
the vacuum pump is connected with the sealed cavity and is used for pumping out inert gas in the battery and the sealed cavity after the battery tightness detection is completed;
the switch valve is arranged on a connecting pipeline between the sealed cavity and the vacuum pump and is used for opening and closing a corresponding connecting pipeline;
and the high-pressure tank is connected with the vacuum pump and is used for storing the inert gas pumped by the vacuum pump at high pressure.
2. The inert gas recovery apparatus according to claim 1, further comprising:
the detector is connected with the sealed cavity and is used for detecting the content of inert gas in the pipeline connected with the sealed cavity and the sealed cavity;
and three ends of the three-way valve are respectively connected with the sealing cavity, the vacuum pump and the detector.
3. The inert gas recovery apparatus according to claim 1, wherein said sealed chamber and said battery are connected to a manifold through a branch pipe, respectively, and then connected to said vacuum pump, and said on-off valve is provided at a position where said manifold intersects both branch pipes.
4. The inert gas recovery apparatus according to claim 1, further comprising:
the transfer tank is connected between the vacuum pump and the high-pressure tank;
and the high-pressure pump is connected between the transfer tank and the high-pressure tank.
5. The inert gas recovery apparatus according to claim 2, further comprising:
a battery tightness detection system comprising:
an inert gas source, the sealed cavity, the vacuum pump and the detector;
the vacuum pump is also communicated with the atmosphere and is used for pumping the gas in the battery and the sealed cavity to the atmosphere before the tightness detection is carried out;
the inert gas source comprises a gas cylinder and a valve, the gas cylinder is used for storing inert gas, the valve is used for opening and closing the gas cylinder, and the gas cylinder is connected with the inside of the battery to provide inert gas for the inside of the battery when the tightness detection is carried out;
the detector is communicated with the sealed cavity to detect the content of inert gas in the sealed cavity.
6. The inert gas recovery device according to claim 5, wherein said vacuum pump is connected to said battery through the same pipe and to said sealed chamber through the same pipe when performing inert gas recovery and seal detection.
7. The inert gas recovery apparatus of claim 2, wherein the inert gas comprises helium and the detector comprises a helium detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223259820.1U CN220018854U (en) | 2022-12-06 | 2022-12-06 | Inert gas recovery device for detecting battery tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223259820.1U CN220018854U (en) | 2022-12-06 | 2022-12-06 | Inert gas recovery device for detecting battery tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220018854U true CN220018854U (en) | 2023-11-14 |
Family
ID=88672331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223259820.1U Active CN220018854U (en) | 2022-12-06 | 2022-12-06 | Inert gas recovery device for detecting battery tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220018854U (en) |
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2022
- 2022-12-06 CN CN202223259820.1U patent/CN220018854U/en active Active
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