CN209910920U

CN209910920U - Device for detecting battery leakage

Info

Publication number: CN209910920U
Application number: CN201920469586.4U
Authority: CN
Inventors: 胡川磊; 郭庆明; 聂龙如; 黎伟竞; 陈欢; 温珍钿; 张尚冬
Original assignee: Huizhou Desay Battery Co Ltd
Current assignee: Huizhou Desay Battery Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-07
Anticipated expiration: 2029-04-09

Abstract

The utility model provides a detect device of battery weeping, includes the frame, is equipped with in the frame to be used for placing the seal chamber who waits to detect the battery, be used for detecting VOC concentration's test instrument, be used for from the interior gas extraction subassembly and the pipeline of taking out of seal chamber, pipeline including carry the interior pipeline one of seal chamber with outside air, carry the pipeline two of test instrument with the gas in the seal chamber to and the pipeline three that communicates with pipeline one and pipeline two. The utility model can quickly judge whether the battery leaks, and has high safety and high reliability of detection results; if the battery takes place the weeping, the subassembly of bleeding can make and form the negative pressure in the sealed cavity and take out VOC gas, and pipeline one pours into clean air into and makes and reach the ordinary pressure in the sealed cavity, and VOC gas detects to the test instrument through pipeline two, and pipeline three sets up the security that improves the device, avoids meeting accident.

Description

Device for detecting battery leakage

Technical Field

The utility model relates to a battery detection area especially relates to a detect device of battery weeping.

Background

Lithium ion battery need detect whether battery weeping in process of production, and the weeping battery is not only the defective products, and has huge potential safety hazard, but current equipment detects the reliability poor, can't carry out quick effectual detection whether to battery weeping. In addition, the battery module is composed of a plurality of or dozens of batteries, if the leakage problem occurs in the batteries in the battery module, the battery module needs to be unpacked and the batteries need to be detected one by one, and the process is complicated and time-consuming, so that leakage detection needs to be performed on a single battery before the batteries are assembled, the reliability of leakage detection is improved, and the detection device has certain safety.

SUMMERY OF THE UTILITY MODEL

Poor, the slow, the security low scheduling problem of security of detection to battery weeping in order to overcome current device, the utility model provides a detect device of battery weeping.

The utility model provides a detect device of battery weeping, includes the frame, is equipped with in the frame to be used for placing the seal chamber who waits to detect the battery, be used for detecting VOC concentration's test instrument, be used for from the interior gas extraction subassembly and the pipeline of taking out of seal chamber, pipeline including carry the interior pipeline one of seal chamber with outside air, carry the pipeline two of test instrument with the gas in the seal chamber to and the pipeline three that communicates with pipeline one and pipeline two.

Preferably, the first delivery pipeline comprises an air inlet pressure regulating valve, a primary filter, a secondary filter, a first pressure regulating valve and a first check valve which are sequentially connected, and the first check valve is connected with the sealed cavity.

Preferably, the primary filter adopts a fine activated carbon filter element, and the secondary filter adopts a hyperfine activated carbon filter element.

Preferably, the second delivery pipe comprises a second check valve arranged between the sealed cavity and the test instrument.

Preferably, the air exhaust assembly comprises a vacuum pump and an air exhaust check valve connected with the vacuum pump, and the air exhaust check valve is connected with the sealing cavity.

Preferably, the third delivery pipeline comprises a third pressure regulating valve, a third electric proportional valve and a third check valve which are sequentially connected, the third pressure regulating valve is arranged between the second-stage filter and the first pressure regulating valve, and the third check valve is connected with the test instrument.

Preferably, a fourth conveying pipeline is connected between the first conveying pipeline and the third conveying pipeline, the fourth conveying pipeline comprises a fourth check valve and a fourth electric proportional valve, the fourth check valve is connected between the first check valve and the sealed cavity, and the fourth electric proportional valve is connected between the third pressure regulating valve and the third electric proportional valve.

Preferably, the third conveying pipeline sequentially comprises a third pressure regulating valve, a third electric proportional valve and a third check valve, the third pressure regulating valve is arranged between the first check valve and the sealed cavity, and the third check valve is connected with the test instrument.

Preferably, the seal cavity comprises an upper cavity and a lower cavity below the upper cavity, the upper cavity is provided with an upper cylinder driving the upper cavity to vertically move, and the lower cavity is provided with a lower cylinder driving the lower cavity to vertically move.

Preferably, a negative pressure meter for detecting the air pressure in the sealed cavity is arranged on one side of the sealed cavity.

The utility model provides a device for detecting battery leakage, which can rapidly judge whether the battery leaks or not, and has high safety, high detection speed and high reliability of detection results; if the battery takes place the weeping, the subassembly of bleeding can make and form the negative pressure in the sealed cavity and take out VOC gas, and pipeline one pours into clean air into and makes and reach the ordinary pressure in the sealed cavity, and VOC gas detects to the test instrument through pipeline two, and pipeline three sets up the security that improves the device, avoids meeting accident, ensures the process from the negative pressure to the ordinary pressure steadily in the sealed cavity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a schematic view of a conveying pipeline in embodiment 1 of the present invention;

fig. 4 is a first schematic view of a conveying pipeline according to embodiment 2 of the present invention;

fig. 5 is a schematic view of a second conveying pipeline according to embodiment 2 of the present invention;

fig. 6 is a schematic view of a conveying pipeline according to embodiment 3 of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Embodiment 1 referring to fig. 1 ~ 3, a device for detecting battery leakage includes a frame 1, a sealed cavity 2 for placing a battery to be detected, a testing instrument 3 for detecting VOC concentration, an air extracting component for extracting air from the sealed cavity 2, and a conveying pipeline 5 are arranged on the frame 1, the conveying pipeline 5 includes a first conveying pipeline 6 for conveying external air into the sealed cavity 2, a second conveying pipeline 7 for conveying gas in the sealed cavity 2 to the testing instrument, and a third conveying pipeline 8 communicated with the first conveying pipeline 6 and the second conveying pipeline 7, the sealed cavity 2 includes an upper cavity 21 and a lower cavity 22 below the upper cavity 21, the upper cavity 21 is provided with an upper cylinder 23 for driving the upper cavity to vertically move, a lower cylinder for driving the lower cavity to vertically move is arranged below the lower cavity 22, the upper cylinder 23 and the lower cylinder are respectively provided with an electromagnetic valve 11, one side of the sealed cavity 2 is provided with a negative pressure meter 10 for detecting air pressure in the sealed cavity, the air extracting component includes an air extracting check valve 41 connected with a vacuum pump, and the check valve 42 connected with the sealed cavity 2.

The first conveying pipeline 6 comprises an air inlet pressure regulating valve 61, a first-stage filter 62, a second-stage filter 63, a first pressure regulating valve 64 and a first check valve 65 which are sequentially connected, the first check valve 65 is connected with the sealed cavity 2, the first-stage filter 62 adopts a fine activated carbon filter element, and the second-stage filter 63 adopts a superfine activated carbon filter element; the second conveying pipeline 7 comprises a second check valve 71 arranged between the sealed cavity 2 and the test instrument 3; the third conveying pipe 8 comprises a third pressure regulating valve 81, a third electric proportional valve 82 and a third check valve 83 which are connected in sequence, the third pressure regulating valve 81 is arranged between the second-stage filter 63 and the first pressure regulating valve 64, and the third check valve 83 is connected with the test instrument 3. The pressure regulating valve I, the pressure regulating valve III and the electric proportional valve III are made of FSETO brands.

The utility model discloses to wait to detect the battery and place in cavity 22 down, go up cylinder 23 and lower cylinder work, will go up cavity 21 and cavity 22 closure formation seal chamber 2 down, vacuum pump 41 takes out the air in seal chamber 2, form the negative pressure in the seal chamber 2, take out seal chamber 2 with leaking gas simultaneously when the battery takes place the weeping in, then compressed air passes through pipeline one 6 and injects clean air in to seal chamber 2, the pipeline of whole device reaches the ordinary pressure, the air in seal chamber 2 can enter into testing instrument 3 through pipeline two 7 this moment, switch-on testing instrument 3 carries out the battery weeping test.

The testing instrument 3 can only test under the ordinary pressure, electrolyte behind the battery weeping can only be taken out under the high negative pressure situation, so pipeline 5 is very critical, pipeline three 8 intercommunication is between pipeline 6 and pipeline two 7, can stabilize quick messenger pipeline 5 and seal chamber 2 and reach the ordinary pressure, avoid taking place the accident, improve the security of whole device, electric proportional valve control pipeline internal pressure, the testing instrument 3 only can switch on in the seal chamber when the ordinary pressure.

Embodiment 2 referring to fig. 4 ~ 5, the present embodiment is substantially the same as embodiment 1 except that a delivery conduit four 9 is connected between a delivery conduit one 6 and a delivery conduit three 8, the delivery conduit four 9 comprises a check valve four 91 and an electric proportional valve four 92, the check valve four 91 is connected between the check valve one 65 and the sealed chamber 2, and the electric proportional valve four 92 is connected between the pressure regulating valve three 81 and the electric proportional valve three 82.

Example 3: referring to fig. 5, the present embodiment is substantially the same as embodiment 1 except that: the third conveying pipeline 8 sequentially comprises a third pressure regulating valve 81, a third electric proportional valve 82 and a third check valve 83, the third pressure regulating valve 81 is arranged between the first check valve 65 and the sealed cavity 2, and the third check valve 83 is connected with the testing instrument 3.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a detect device of battery weeping, includes frame (1), its characterized in that: be equipped with on frame (1) and be used for placing seal chamber (2) that wait to detect the battery, be used for detecting VOC concentration's test instrument (3), be used for following seal chamber (2) interior pumping assembly and pipeline (5) of pumping the body, pipeline (5) including carry outside air to the pipeline (6) in seal chamber (2), carry the pipeline two (7) of test instrument with the gas in seal chamber (2) to and pipeline three (8) of communicating with pipeline (6) and pipeline two (7).

2. The apparatus for detecting battery leakage according to claim 1, wherein: the first conveying pipeline (6) comprises an air inlet pressure regulating valve (61), a first-stage filter (62), a second-stage filter (63), a first pressure regulating valve (64) and a first check valve (65) which are sequentially connected, and the first check valve (65) is connected with the sealed cavity (2).

3. The apparatus for detecting battery leakage according to claim 2, wherein: the primary filter (62) adopts a fine activated carbon filter element, and the secondary filter (63) adopts a hyperfine activated carbon filter element.

4. The apparatus for detecting battery leakage according to claim 1, wherein: the second conveying pipeline (7) comprises a second check valve (71) arranged between the sealed cavity (2) and the test instrument (3).

5. The apparatus for detecting battery leakage according to claim 1, wherein: the air exhaust assembly comprises a vacuum pump (41) and an air exhaust check valve (42) connected with the vacuum pump (41), and the air exhaust check valve (42) is connected with the sealing cavity (2).

6. The apparatus for detecting battery leakage according to claim 2, wherein: the third conveying pipeline (8) comprises a third pressure regulating valve (81), a third electric proportional valve (82) and a third check valve (83) which are sequentially connected, the third pressure regulating valve (81) is arranged between the second-stage filter (63) and the first pressure regulating valve (64), and the third check valve (83) is connected with the test instrument (3).

7. The apparatus for detecting battery leakage according to claim 6, wherein: and a conveying pipeline four (9) is connected between the conveying pipeline one (6) and the conveying pipeline three (8), the conveying pipeline four (9) comprises a check valve four (91) and an electric proportional valve four (92), the check valve four (91) is connected between the check valve one (65) and the sealed cavity (2), and the electric proportional valve four (92) is connected between the pressure regulating valve three (81) and the electric proportional valve three (82).

8. The apparatus for detecting battery leakage according to claim 2, wherein: the third conveying pipeline (8) comprises a third pressure regulating valve (81), a third electric proportional valve (82) and a third check valve (83) which are sequentially connected, the third pressure regulating valve (81) is arranged between the first check valve (65) and the sealed cavity (2), and the third check valve (83) is connected with the testing instrument (3).

9. The apparatus for detecting battery leakage according to claim 1, wherein: the sealed cavity (2) comprises an upper cavity (21) and a lower cavity (22) below the upper cavity, an upper cylinder (23) for driving the upper cavity to vertically move is arranged on the upper cavity (21), and a lower cylinder for driving the lower cavity to vertically move is arranged below the lower cavity (22).

10. The apparatus for detecting battery leakage according to claim 1, wherein: one side of the sealed cavity (2) is provided with a negative pressure meter (10) for detecting the air pressure in the sealed cavity.