WO2023168917A1 - 检漏装置 - Google Patents

检漏装置 Download PDF

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Publication number
WO2023168917A1
WO2023168917A1 PCT/CN2022/117283 CN2022117283W WO2023168917A1 WO 2023168917 A1 WO2023168917 A1 WO 2023168917A1 CN 2022117283 W CN2022117283 W CN 2022117283W WO 2023168917 A1 WO2023168917 A1 WO 2023168917A1
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WO
WIPO (PCT)
Prior art keywords
control valve
detection component
detection
component
box
Prior art date
Application number
PCT/CN2022/117283
Other languages
English (en)
French (fr)
Inventor
蔡瑞
王明生
陈晓飞
Original Assignee
无锡先导智能装备股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 无锡先导智能装备股份有限公司 filed Critical 无锡先导智能装备股份有限公司
Priority to US18/682,001 priority Critical patent/US20250125427A1/en
Publication of WO2023168917A1 publication Critical patent/WO2023168917A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/34—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4228—Leak testing of cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285—Testing apparatus
    • 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

Definitions

  • the present application relates to the technical field of battery detection, and more specifically, to a leak detection device.
  • leak detection is required for soft-pack batteries after liquid injection and final sealing.
  • Leak detection is usually carried out in a vacuum state.
  • vacuuming there will be residual gas in the pipeline and sensor, which will affect the detection accuracy. Therefore, after the detection is completed, you need to wait for the residual gas in the pipeline and sensor to be discharged and the sensor to be reset. The long time leads to low leakage detection efficiency of soft pack batteries.
  • a leak detection device including:
  • the first detection component is connected to the sealed box and is used to detect the volatile gas of the workpiece
  • a second detection component connected to the sealing box, is used to detect volatile gases from the workpiece
  • the first detection component and the second detection component each include a connection state, a detection state and an exhaust state;
  • the first detection component or the second detection component When the first detection component or the second detection component is in the communication state, the first detection component or the second detection component communicates with the sealed chamber and the air extraction device;
  • the first detection component or the second detection component When the first detection component or the second detection component is in the detection state, the first detection component or the second detection component is connected to the sealed cavity and separated from the air extraction device;
  • the first detection component or the second detection component When the first detection component or the second detection component is in the exhaust state, the first detection component or the second detection component is separated from the sealed cavity.
  • the battery is placed in the sealed cavity, the first detection component is switched to the connected state, and the second detection component is switched to the exhaust state, the sealed cavity is evacuated through the air extraction device, and then the third detection component is switched to the exhaust state.
  • a detection component switches to the detection state to detect whether there is volatile gas in the sealed cavity, thereby determining whether the battery leaks.
  • the first detection component can be switched to the exhaust state to discharge residual gas, and the second detection component can be used to detect leaks in the battery in the sealed cavity. In this way, the first detection component and the second detection component can operate alternately without waiting for the residual gas in the detection component to be discharged, thereby improving the leakage detection efficiency.
  • the sealed box includes a bottom plate and a box body.
  • the bottom plate is used to carry workpieces.
  • the box body is detachably connected to the bottom plate to form the sealed cavity with the bottom plate.
  • the first detection component and the second detection component are both connected to the box.
  • the leak detection device further includes a frame and a lifting driving member.
  • the box and the lifting driving member are both arranged on the frame, and the lifting driving member is drivingly connected to the bottom plate. , to drive the bottom plate to reciprocate in the first direction, and the bottom plate has a sealing position during movement;
  • the bottom plate When the bottom plate is in the sealing position, the bottom plate is connected to the box to enclose and form the sealed cavity.
  • the leak detection device further includes a translation driving member, which is disposed on the frame and is drivingly connected to the lifting driving member to drive the lifting driving member along the edge of the The first direction is vertical and the second direction moves reciprocally, and the lifting driving member has a corresponding position during movement;
  • the bottom plate corresponds to the box body in the first direction, so that the bottom plate can move to the sealing position along the first direction.
  • the box includes a transparent top plate and a side plate, one end of the side plate is fixedly connected to the transparent top plate, and the bottom plate is detachably connected to the other side of the side plate away from the transparent top plate. One end.
  • the leak detection device further includes a connection component, the connection component is connected to the sealing box and communicates with the seal cavity, the connection component includes a conductive state and a cut-off state;
  • the sealed cavity communicates with the outside world through the connecting component
  • the connecting component When the connecting component is in the cut-off state, the connecting component separates the sealed cavity from the outside world.
  • connection component includes a first connection pipe and a first control valve.
  • the first connection pipe is connected to the seal box and communicates with the seal cavity.
  • the first control valve is disposed in The first connecting pipe is used to control the opening and closing of the first connecting pipe.
  • the first detection component includes a second connecting pipe, a second control valve, a third control valve and a first detector.
  • One end of the second connecting pipe is connected to the sealing box and is connected to the sealing box.
  • the sealing chamber is connected, and the other end is used to communicate with the air extraction device.
  • the second control valve and the third control valve are both arranged on the second connecting pipe, and the second control valve is located on the third The control valve is close to the side of the sealing box.
  • the second control valve and the third control valve are both used to control the on-off of the second connecting pipe.
  • the first detector is arranged on the second A connecting pipe is located between the second control valve and the third control valve, and is used to detect volatile gases of the workpiece.
  • the second detection component includes a third connecting pipe, a fourth control valve, a fifth control valve and a second detector.
  • One end of the third connecting pipe is connected to the sealing box and is connected to the sealed box.
  • the sealing chamber is connected, and the other end is used to communicate with the air extraction device.
  • the fourth control valve and the fifth control valve are both arranged on the third connecting pipe, and the fourth control valve is located on the third connecting pipe.
  • Five control valves are close to the side of the sealing box.
  • the fourth control valve and the fifth control valve are both used to control the on-off of the third connecting pipe.
  • the second detector is arranged on the third connecting pipe. Three connecting pipes, located between the fourth control valve and the fifth control valve, are used to detect volatile gases from the workpiece.
  • the leak detection device further includes a communication tube and a filter element.
  • the communication tube is at the same time connected to the other end of the second connecting tube away from the sealing box, and the third connecting tube is away from the sealing box.
  • the other end of the box is connected to the air extraction device, and the filter element is arranged on the communication tube for filtering the gas flowing through the communication tube.
  • Figure 1 is a schematic structural diagram of a leak detection device provided by an embodiment of the present application.
  • Figure 2 is a left structural schematic diagram of the leak detection device shown in Figure 1.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the terms “below”, “below” and “beneath” the first feature of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • a leak detection device 100 provided by an embodiment of the present application includes a sealed box 10 , a first detection component 20 and a second detection component 30 .
  • the sealed box 10 has a sealed cavity for accommodating the workpiece 200 .
  • the first detection component 20 and the second detection component 30 are both connected to the sealed box 10 , and both are used to detect volatile gases of the workpiece 200 .
  • Both the first detection component 20 and the second detection component 30 include a communication state, a detection state, and an exhaust state.
  • the first detection component 20 or the second detection component 30 When the first detection component 20 or the second detection component 30 is in a connected state, the first detection component 20 or the second detection component 30 communicates with the sealing chamber and the air extraction device.
  • the first detection component 20 or the second detection component 30 When the first detection component 20 or the second detection component 30 is in the detection state, the first detection component 20 or the second detection component 30 is connected to the sealed cavity and separated from the air extraction device.
  • the first detection component 20 or the second detection component 30 When the first detection component 20 or the second detection component 30 is in the exhaust state, the first detection component 20 or the second detection component 30 is separated from the sealed cavity.
  • the workpiece 200 is a battery
  • the volatile gas is the volatile gas of the electrolyte in the battery.
  • the battery is placed in the sealed cavity.
  • the first detection component 20 is switched to the connected state, and the second detection component 30 is switched to the exhaust state.
  • the sealed cavity is evacuated through the air extraction device, and then The first detection component 20 is switched to the detection state to detect whether there is volatile gas in the sealed cavity, thereby determining whether the battery leaks.
  • the first detection component 20 can be switched to the exhaust state to discharge residual gas, and the second detection component 30 can be used to detect leaks in the battery in the sealed cavity. In this way, the first detection component 20 and the second detection component 30 can operate alternately without waiting for the residual gas in the detection component to be discharged, thereby improving the leakage detection efficiency.
  • the first detection component 20 or the second detection component 30 when the first detection component 20 or the second detection component 30 is in the exhaust state, the first detection component 20 or the second detection component 30 is connected to the exhaust device and is separated from the sealed chamber, so it can be removed by the exhaust device.
  • the gas device evacuates the first detection component 20 or the second detection component 30, thereby extracting the residual gas in the first detection component 20 or the second detection component 30.
  • the second detection component 30 is in the exhaust state, and the first detection component 20 and the second detection component 30 can run alternately, so the second detection component 30 has no influence on the inside of the sealed cavity.
  • the first detection component 20 is always in the exhaust state, so that the residual gas in the first detection component 20 is discharged.
  • the detection process of the second detection component 30 is the same as that of the first detection component 20. First, the second detection component 30 is switched to the connected state, the sealed cavity is evacuated by the air extraction device, and then the second detection component is 30 Switch to the detection state to detect whether there is volatile gas in the sealed cavity.
  • first detection component 20 and the second detection component 30 can be evacuated through two air extraction devices, or they can be connected to the same air extraction device in sequence, or they can be connected to the same air extraction device at the same time. connected but not interfering with each other.
  • the sealed box 10 includes a bottom plate 11 and a box body 12.
  • the bottom plate 11 is used to carry the workpiece 200.
  • the box body 12 is detachably connected to the bottom plate 11 to form a sealed cavity with the bottom plate 11.
  • the first detection component 20 and the second detection component 30 are both connected to the box 12 .
  • the bottom plate 11 is provided with a positioning structure, which can be achieved by detaching the bottom plate 11 from the box 12, then positioning the workpiece 200 on the bottom plate 11 through the positioning mechanism, and then connecting the bottom plate 11 to the box 12. The workpiece 200 is placed in the sealed cavity.
  • the bottom plate 11 is also provided with a sealing ring.
  • the box 12 includes a transparent top plate and side plates, one end of the side plate is connected to the transparent top plate, and the bottom plate 11 is detachably connected to the other end of the side plate away from the transparent top plate to enclose and form the above-mentioned sealed cavity.
  • the transparent top plate can be used to observe whether the battery in the sealed cavity is deformed, thereby directly judging the sealing performance of the battery.
  • the leak detection device also includes a visual component.
  • the visual component is disposed on the side of the transparent top plate away from the bottom plate 11 and is used to detect the shape and size of the battery in the sealed cavity, so as to determine whether the battery is in the sealed cavity based on the shape and size. Whether deformation occurs during the vacuuming process can determine the sealing performance of the battery.
  • the leak detection device also includes a frame 41 and a lifting driving member 42 .
  • the box 12 and the lifting driving member 42 are both disposed on the frame 41 , and the lifting driving member 42 is drivingly connected to the base plate 11 to drive the base plate 11 Moving back and forth along the first direction, the base plate 11 has a sealing position during the movement.
  • the bottom plate 11 When the bottom plate 11 is in the sealing position, the bottom plate 11 is connected to the box 12 to enclose and form a sealed cavity.
  • the first direction is the up and down direction in Figures 1 and 2, and is the vertical direction in practical applications.
  • the lifting driving member 42 is a cylinder.
  • the leak detection device further includes a translation driving member 43.
  • the translation driving member 43 is disposed on the frame 41 and is drivingly connected to the lifting driving member 42 to drive the lifting driving member 42 to reciprocate in the second direction.
  • the lifting driving member The piece 42 has a corresponding position during movement.
  • the bottom plate 11 corresponds to the box 12 in the first direction, so that the bottom plate 11 can move to the sealing position along the first direction, and is connected and enclosed with the box 12 to form a sealed cavity.
  • the second direction is perpendicular to the first direction, and the second direction is the direction perpendicular to the paper surface in Figure 1 and the left-right direction in Figure 2 .
  • the translation driving member 43 drives the lifting driving member 42 to move away from the corresponding position along the second direction, so that the base plate 11 is moved out from directly below the box 12 , and the battery is placed on the base plate 11 , and then the translation driving member 43 drives The lifting driving member 42 moves back to the corresponding position, and then drives the bottom plate 11 to rise to connect with the box 12 through the lifting driving member 42, thereby enclosing a sealed cavity, and the battery is located in the sealed cavity.
  • the translation driving member 43 is an electric cylinder or a pneumatic cylinder.
  • the leak detection device further includes a connection component 50.
  • the connection component 50 is connected to the sealing box 10 and communicates with the seal chamber.
  • the connection component 50 includes a conductive state and a cut-off state.
  • connection component 50 When the connection component 50 is in the conductive state, the sealed cavity is connected to the outside world through the connection component 50; when the connection component 50 is in the cut-off state, the connection component 50 separates the sealed cavity from the outside world.
  • the connecting component 50 is in the cut-off state first, and when the first detection component 20 enters the connected state, the air extraction device evacuates the sealed chamber. After vacuuming, the first detection component 20 enters the detection state. After the detection is completed, the sealed chamber needs to be broken. When the vacuum is used to facilitate the separation of the box 12 and the bottom plate 11, the connecting component 50 enters the conductive state to break the vacuum in the sealed cavity. At the same time, the first detection component 20 enters the connected state, and the exhaust device exhausts the sealed cavity and the first detection component 20. . After exhausting, the first detection component 20 is switched to the exhaust state, and the exhaust device evacuates the first detection component 20 to further exhaust the first detection component 20 .
  • connection component 50 includes a first connection pipe 51 and a first control valve 52.
  • the first connection pipe 51 is connected to the sealing box 10 and communicates with the seal chamber.
  • the first control valve 52 is provided on the first connection pipe 51. It is used to control the opening and closing of the first connecting pipe 51.
  • connection component 50 when the first control valve 52 is open, the connection component 50 is in a conductive state, and when the first control valve 52 is closed, the connection component 50 is in a cut-off state.
  • connection component 50 when the connection component 50 is not provided, after the detection is completed, the vacuum of the sealed cavity can be broken by switching the first detection component 20 or the second detection component 30 to the connected state. Separate the bottom plate 11 from the box 12, then switch the first detection component 20 or the second detection component 30 to the exhaust state, and the air extraction device evacuates the first detection component 20 or the second detection component 30.
  • the first detection component 20 includes a second connecting pipe 21 , a second control valve 22 , a third control valve 23 and a first detector 24 .
  • One end of the second connecting pipe 21 is connected to the sealing box 10 and is connected to the sealed box 10 .
  • the sealing chamber is connected, and the other end is used to communicate with the air extraction device.
  • the second control valve 22 and the third control valve 23 are both arranged on the second connecting pipe 21, and the second control valve 22 is located on the third control valve 23 close to the sealing box 10 On one side of the Between the three control valves 23, it is used to detect the volatile gas of the workpiece 200.
  • the space between the second control valve 22 and the third control valve 23 in the second connecting pipe 21 is a detection space, and the first detector 24 is located in the detection space.
  • both the second control valve 22 and the third control valve 23 are opened, and the air extraction device is connected to the sealed chamber through the second connecting pipe 21 to evacuate the sealed chamber.
  • the second control valve 22 When the first detection component 20 is in the detection state, the second control valve 22 is opened, the third control valve 23 is closed, the detection space is connected with the sealing chamber, and is separated from the air extraction device, and the first detector 24 can detect whether there is any gas in the sealing chamber. Battery volatile gases are present.
  • the second control valve 22 When the first detection component 20 is in the exhaust state, the second control valve 22 is closed and the third control valve 23 is opened.
  • the detection space is separated from the sealed chamber but connected to the air extraction device.
  • the air extraction device evacuates the detection space to Extract the residual gas in the detection space.
  • the second detection component 30 includes a third connecting pipe 31 , a fourth control valve 32 , a fifth control valve 33 and a second detector 34 .
  • One end of the third connecting pipe 31 is connected to the sealing box 10 , and It is connected to the sealing chamber, and the other end is used to communicate with the air extraction device.
  • the fourth control valve 32 and the fifth control valve 33 are both arranged on the third connecting pipe 31, and the fourth control valve 32 is located on the fifth control valve 33 close to the sealing box.
  • the fourth control valve 32 and the fifth control valve 33 are both used to control the opening and closing of the third connecting pipe 31.
  • the second detector 34 is provided on the third connecting pipe 31 and is located between the fourth control valve 32 and the fifth connecting pipe 31.
  • the fifth control valve 33 is used to detect the volatile gas of the workpiece 200 .
  • both the fourth control valve 32 and the fifth control valve 33 are open; when the second detection component 30 is in the connected state, When the detection component 30 is in the detection state, the fourth control valve 32 is opened and the fifth control valve 33 is closed; when the second detection component 30 is in the exhaust state, the fourth control valve 32 is closed and the fifth control valve 33 is opened.
  • the first detector 24 and the second detector 34 are both odor sensors.
  • the internal medium of the odor sensor reacts with the volatile gas of the electrolyte to output a voltage value, and then the system determines the battery according to the fluctuation range of the voltage value. Is there any leakage?
  • the leak detection device further includes a communication pipe 60 , which is simultaneously connected to the other end of the second connecting pipe 21 away from the sealing box 10 , the other end of the third connecting pipe 31 away from the sealing box 10 , and the air extraction device. .
  • the first detection component 20 and the second detection component 30 are connected through the communication pipe 60, and the communication pipe 60 can be connected with an air extraction device to reduce the cost of air extraction.
  • both the first detection component 20 and the second detection component 30 also include a disconnected state.
  • the first detection component 20 or the second detection component 30 When the first detection component 20 or the second detection component 30 is in the disconnected state, the first detection component 20 or the second detection component 30 is separated from the sealed chamber and the air extraction device to avoid the first detection component 20 and the second detection component 30 influence each other during detection.
  • the second detection component 30 when the first detection component 20 detects the workpiece 200, the second detection component 30 is in a disconnected state; similarly, when the second detection component 30 detects the workpiece 200, the first detection component 20 is in disconnected state.
  • the leak detection device further includes a filter element, which is disposed on the communication tube 60 and used to filter the gas flowing through the communication tube 60 to filter the volatilized electrolyte.
  • the bottom plate 11 is connected to the box 12, there is no battery in the sealed cavity, and the first control valve 52, the second control valve 22, the third control valve 23, the fourth control valve 32 and the fifth control valve 33 are all closed.
  • the lifting driving member 42 drives the base plate 11 to lower, and then the translation driving member 43 drives the lifting driving member 42 to move out of the corresponding position.
  • the robot places the battery on the base plate 11, and the positioning structure fixes the battery, and then the translation driving member 43 drives the lifting driving member 42.
  • the lifting driving member 42 drives the bottom plate 11 to rise to the sealing position to connect with the box 12 to form a sealed cavity.
  • the second control valve 22 and the third control valve 23 are opened, and the air extraction device is activated to evacuate the sealed chamber.
  • the visual component can be used to detect whether the battery is deformed. If not, If deformation occurs, continue with subsequent operations.
  • the air extraction device and the third control valve 23 are closed.
  • the first detector 24 detects whether there is volatile gas in the sealed cavity.
  • the first control valve 52 and the third control valve 23 are opened, and the vacuum is pumped simultaneously.
  • the gas device is activated to break the vacuum in the sealed cavity and replace the gas in the sealed cavity and the second connecting pipe 21 .
  • the first control valve 52 and the second control valve 22 are closed, and the gas extraction device extracts the gas in the detection space so that the residual gas in the detection space is discharged.
  • the third control valve 23 and the gas extraction device are closed.
  • the lifting driving member 42 drives the bottom plate 11 to descend, the translation driving member 43 drives the lifting driving member 42 to move out of the corresponding position, and the robot removes the battery that has been tested and replaces it with the next battery.
  • next battery is tested through the second detection component 30, and the detection process of the second detection component 30 is similar to the detection process of the first detection component 20, so no details will be described here.

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Abstract

一种检漏装置，包括密封箱（10）、第一检测组件（20）及第二检测组件（30）。密封箱（10）具有用于容置工件（200）的密封腔；第一检测组件（20）和第二检测组件（30）均包括连通状态、检测状态以及排气状态。电池放置于密封腔内，先将第一检测组件（20）切换连通状态，并将第二检测组件（30）切换至排气状态，通过抽气装置对密封腔抽真空，然后将第一检测组件（20）切换至检测状态，检测密封腔内是否存在挥发气体，从而判断是否电池是否发生泄漏。对另一个电池进行检测时，可将第一检测组件（20）切换至排气状态以排出残余气体，并通过第二检测组件（30）对密封腔内的电池进行检漏。第一检测组件（20）和第二检测组件（30）可交替运行，无需等待检测组件中残余气体排出，提高了泄漏检测效率。

Description

检漏装置 技术领域
本申请涉及电池检测技术领域，更具体的说，涉及一种检漏装置。
背景技术
在锂电池生产线中，对于注液终封后的软包电池需要进行泄漏检测。泄漏检测通常在真空状态下进行，但由于抽真空后，管路及传感器内会有残余气体，会影响检测精确度，因此检测完成后，需等待管路及传感器内的残余气体排出，传感器复位时间长，导致软包电池泄漏检测效率低。
发明内容
基于此，有必要针对现有的电池泄漏检测效率低的问题，提供一种检测效率高的检漏装置。
一种检漏装置，包括：
密封箱，具有用于容置工件的密封腔；
第一检测组件，连接于所述密封箱，用于检测工件的挥发气体；及
第二检测组件，连接于所述密封箱，用于检测工件的挥发气体；
其中，所述第一检测组件和所述第二检测组件均包括连通状态、检测状态以及排气状态；
当所述第一检测组件或所述第二检测组件处于所述连通状态时，所述第一检测组件或所述第二检测组件连通所述密封腔和抽气装置；
当所述第一检测组件或所述第二检测组件处于所述检测状态时，所述第一检测组件或所述第二检测组件与所述密封腔连通，且与抽气装置分隔；
当所述第一检测组件或所述第二检测组件处于所述排气状态时，所述第一检测组件或所述第二检测组件与所述密封腔分隔。
通过设置上述的检漏装置，电池放置于密封腔内，先将第一检测组件切换连通状态，并将第二检测组件切换至排气状态，通过抽气装置对密封腔抽真空， 然后将第一检测组件切换至检测状态，检测密封腔内是否存在挥发气体，从而判断是否电池是否发生泄漏。而后续对另一个电池进行检测时，可将第一检测组件切换至排气状态以排出残余气体，并通过第二检测组件对密封腔内的电池进行检漏。如此，第一检测组件和第二检测组件可交替运行，无需等待检测组件中残余气体排出，提高了泄漏检测效率。
在一个实施例中，所述密封箱包括底板及箱体，所述底板用于承载工件，所述箱体可拆卸地连接于所述底板，以与所述底板围合形成所述密封腔，所述第一检测组件和所述第二检测组件均连接于所述箱体。
在一个实施例中，所述检漏装置还包括机架及升降驱动件，所述箱体及所述升降驱动件均设置于所述机架，且所述升降驱动件与所述底板传动连接，以驱动所述底板沿第一方向往复移动，所述底板移动的过程中具有密封位置；
当所述底板位于所述密封位置时，所述底板与所述箱体连接，以围合形成所述密封腔。
在一个实施例中，所述检漏装置还包括平移驱动件，所述平移驱动件设置于所述机架，且与所述升降驱动件传动连接，以驱动所述升降驱动件沿与所述第一方向垂直的第二方向往复移动，所述升降驱动件移动的过程中具有对应位置；
当所述升降驱动件位于所述对应位置时，所述底板与所述箱体在所述第一方向上对应，以使所述底板可沿所述第一方向移动至所述密封位置。
在一个实施例中，所述箱体包括透明顶板以及侧板，所述侧板的一端固定连接于所述透明顶板，所述底板可拆卸地连接于所述侧板背离所述透明顶板的另一端。
在一个实施例中，所述检漏装置还包括连接组件，所述连接组件连接于所述密封箱，且与所述密封腔连通，所述连接组件包括导通状态及截止状态；
当所述连接组件处于所述导通状态时，所述密封腔通过所述连接组件与外界连通；
当所述连接组件处于所述截止状态时，所述连接组件分隔所述密封腔与外界。
在一个实施例中，所述连接组件包括第一连接管及第一控制阀，所述第一连接管连接于所述密封箱，且与所述密封腔连通，所述第一控制阀设置于所述第一连接管，用于控制所述第一连接管的通断。
在一个实施例中，所述第一检测组件包括第二连接管、第二控制阀、第三控制阀及第一检测器，所述第二连接管一端与所述密封箱连接，且与所述密封腔连通，另一端用于与抽气装置连通，所述第二控制阀和所述第三控制阀均设置于所述第二连接管，且所述第二控制阀位于所述第三控制阀靠近所述密封箱的一侧，所述第二控制阀和所述第三控制阀均用于控制所述第二连接管的通断，所述第一检测器设置于所述第二连接管，且位于所述第二控制阀和所述第三控制阀之间，用于检测工件的挥发气体。
在一个实施例中，所述第二检测组件包括第三连接管、第四控制阀、第五控制阀及第二检测器，所述第三连接管的一端与所述密封箱连接，且与所述密封腔连通，另一端用于与抽气装置连通，所述第四控制阀和所述第五控制阀均设置于所述第三连接管，且所述第四控制阀位于所述第五控制阀靠近所述密封箱的一侧，所述第四控制阀和所述第五控制阀均用于控制所述第三连接管的通断，所述第二检测器设置于所述第三连接管，且位于所述第四控制阀和所述第五控制阀之间，用于检测工件的挥发气体。
在一个实施例中，所述检漏装置还包括连通管及过滤件，所述连通管同时与所述第二连接管远离所述密封箱的另一端、所述第三连接管远离所述密封箱的另一端以及抽气装置连通，所述过滤件设置于所述连通管，用于过滤流经所述连通管的气体。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其他的附图。
图1为本申请一实施例提供的检漏装置的结构示意图；
图2为图1所示的检漏装置的左视结构示意图。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第 一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
如图1及图2所示，本申请一实施例提供的检漏装置100，包括密封箱10、第一检测组件20及第二检测组件30。
密封箱10具有用于容置工件200的密封腔，第一检测组件20和第二检测组件30均连接于密封箱10，且均用于检测工件200的挥发气体。第一检测组件20和第二检测组件30均包括连通状态、检测状态以及排气状态。
当第一检测组件20或第二检测组件30处于连通状态时，第一检测组件20或第二检测组件30连通密封腔和抽气装置。
当第一检测组件20或第二检测组件30处于检测状态时，第一检测组件20或第二检测组件30与密封腔连通，且与抽气装置分隔。
当第一检测组件20或第二检测组件30处于排气状态时，第一检测组件20或第二检测组件30与密封腔分隔。
需要说明的是，本实施例中，工件200为电池，挥发气体为电池中电解液的挥发气体。
通过设置上述的检漏装置，电池放置于密封腔内，先将第一检测组件20切换连通状态，并将第二检测组件30切换至排气状态，通过抽气装置对密封腔抽真空，然后将第一检测组件20切换至检测状态，检测密封腔内是否存在挥发气体，从而判断是否电池是否发生泄漏。而后续对另一个电池进行检测时，可将第一检测组件20切换至排气状态以排出残余气体，并通过第二检测组件30对密封腔内的电池进行检漏。如此，第一检测组件20和第二检测组件30可交替运行，无需等待检测组件中残余气体排出，提高了泄漏检测效率。
需要解释的是，当第一检测组件20或第二检测组件30处于排气状态时， 第一检测组件20或第二检测组件30与抽气装置连通，而与密封腔分隔，故可以通过抽气装置对第一检测组件20或第二检测组件30抽真空，从而将第一检测组件20或第二检测组件30内的残余气体抽出。
可以确定的是，第一检测组件20检测的过程中第二检测组件30处于排气状态，而第一检测组件20和第二检测组件30能够交替运行，故第二检测组件30对密封腔内的电池进行检测的过程中，第一检测组件20也始终处于排气状态，从而将第一检测组件20中的残余气体排出。
而第二检测组件30的检测过程与第一检测组件20的检测过程中相同，先将第二检测组件30切换至连通状态，通过抽气装置对密封腔进行抽真空，然后将第二检测组件30切换至检测状态，检测密封腔内是否存在挥发气体。
此外，需要说明的是，第一检测组件20和第二检测组件30可以通过两个抽气装置进行抽气，也可以是依次与同一个抽气装置连接，还可以是同时与同一抽气装置连接，但是互不干扰。
在一些实施例中，密封箱10包括底板11及箱体12，底板11用于承载工件200，箱体12可拆卸地连接于底板11，以与底板11围合形成密封腔，第一检测组件20和第二检测组件30均连接于箱体12。
需要说明的是，底板11上设置有定位结构，可通过将底板11拆离箱体12，然后将工件200通过定位机构定位于底板11上，再将底板11与箱体12连接，即可实现将工件200放置于密封腔内。
另外，为了保证密封腔的密封性，底板11上还设有密封圈。
在一些实施例中，箱体12包括透明顶板及侧板，侧板的一端连接于透明顶板，底板11可拆卸地连接于侧板背离透明顶板的另一端，以围合形成上述的密封腔。如此，在对密封腔抽真空时，可通过透明顶板观察密封腔内的电池是否发生变形，从而直接判断电池的密封性能。
在一些实施例中，检漏装置还包括视觉组件，视觉组件设置于透明顶板远离底板11的一侧，用于检测密封腔内的电池的形状和大小，从而根据形状和大小判断电池在密封腔抽真空的过程中是否发生形变，进而判断电池的密封性能。
在一些实施例中，检漏装置还包括机架41及升降驱动件42，箱体12及升 降驱动件42均设置于机架41，且升降驱动件42与底板11传动连接，以驱动底板11沿第一方向往复移动，底板11移动的过程中具有密封位置。
当底板11位于密封位置时，底板11与箱体12连接，以围合形成密封腔。
其中，第一方向为图1和图2中的上下方向，且为实际应用中的竖直方向。
具体地，升降驱动件42为气缸。
在一些实施例中，检漏装置还包括平移驱动件43，平移驱动件43设置于机架41，且与升降驱动件42传动连接，以驱动升降驱动件42沿第二方向往复移动，升降驱动件42移动的过程中具有对应位置。
当升降驱动件42位于对应位置时，底板11与箱体12在第一方向上对应，以使底板11可沿第一方向移动至密封位置，与箱体12连接围合形成密封腔。
其中，第二方向与第一方向垂直，第二方向为图1中垂直纸面的方向，且为图2中的左右方向。
可以理解的是，平移驱动件43驱动升降驱动件42沿第二方向移动离开对应位置，使得底板11从箱体12的正下方移出，将电池放置于底板11上，接下来平移驱动件43驱动升降驱动件42移动回对应位置，而后再通过升降驱动件42驱动底板11上升至与箱体12连接，从而围合形成密封腔，并且电池位于密封腔内。
具体地，平移驱动件43为电缸或气缸。
在一些实施例中，检漏装置还包括连接组件50，连接组件50连接于密封箱10，且与密封腔连通，连接组件50包括导通状态及截止状态。
当连接组件50处于导通状态时，密封腔通过连接组件50与外界连通；当连接组件50处于截止状态时，连接组件50分隔密封腔与外界。
以第一检测组件20对工件200进行检漏为例进行说明：
连接组件50先处于截止状态，而在第一检测组件20进入连通状态，抽气装置对密封腔抽真空，抽真空之后通过第一检测组件20进入检测状态，检测完成后，需要对密封腔破真空以方便分离箱体12与底板11时，连接组件50进入导通状态对密封腔破真空，同时第一检测组件20进入连通状态，抽气装置对密封腔和第一检测组件20进行排气。排气后将第一检测组件20切换至排气状态， 抽气装置对第一检测组件20进行抽真空以进一步对第一检测组件20进行排气。
实际应用中，连接组件50包括第一连接管51及第一控制阀52，第一连接管51连接于密封箱10，且与密封腔连通，第一控制阀52设置于第一连接管51，用于控制第一连接管51的通断。
换而言之，当第一控制阀52打开时，连接组件50处于导通状态，而当第一控制阀52关闭时，连接组件50处于截止状态。
同时，需要说明的是，在不设置连接组件50的情况下，在检测完成后，可通过将第一检测组件20或第二检测组件30切换至连通状态对密封腔进行破真空，破真空后将底板11与箱体12分离，然后将第一检测组件20或第二检测组件30切换至排气状态，抽气装置对第一检测组件20或第二检测组件30抽真空即可。
在一些实施例中，第一检测组件20包括第二连接管21、第二控制阀22、第三控制阀23及第一检测器24，第二连接管21一端与密封箱10连接，且与密封腔连通，另一端用于与抽气装置连通，第二控制阀22和第三控制阀23均设置于第二连接管21，且第二控制阀22位于第三控制阀23靠近密封箱10的一侧，第二控制阀22和第三控制阀23均用于控制第二连接管21的通断，第一检测器24设置于第二连接管21，且位于第二控制阀22和第三控制阀23之间，用于检测工件200的挥发气体。
假设第二连接管21内第二控制阀22与第三控制阀23之间的空间为检测空间，第一检测器24位于检测空间内。
需要解释的是，当第一检测组件20处于连通状态时，第二控制阀22和第三控制阀23均打开，抽气装置通过第二连接管21与密封腔连通，从而对密封腔抽真空。
当第一检测组件20处于检测状态时，第二控制阀22打开，第三控制阀23关闭，检测空间与密封腔连通，且与抽气装置分隔，第一检测器24可检测密封腔内是否存在电池的挥发气体。
当第一检测组件20处于排气状态时，第二控制阀22关闭，第三控制阀23打开，检测空间与密封腔分隔，但与抽气装置连通，抽气装置对检测空间抽真 空，以将检测空间内的残余气体抽出。
在一些实施例中，第二检测组件30包括第三连接管31、第四控制阀32、第五控制阀33及第二检测器34，第三连接管31的一端与密封箱10连接，且与密封腔连通，另一端用于与抽气装置连通，第四控制阀32和第五控制阀33均设置于第三连接管31，且第四控制阀32位于第五控制阀33靠近密封箱10的一侧，第四控制阀32和第五控制阀33均用于控制第三连接管31的通断，第二检测器34设置于第三连接管31，且位于第四控制阀32和第五控制阀33之间，用于检测工件200的挥发气体。
由于第二检测组件30的结构与第一检测组件20的相同，故同理可知，当第二检测组件30处于连通状态时，第四控制阀32和第五控制阀33均打开；当第二检测组件30处于检测状态时，第四控制阀32打开，第五控制阀33关闭；当第二检测组件30处于排气状态时，第四控制阀32关闭，第五控制阀33打开。
在一些实施例中，第一检测器24和第二检测器34均为气味传感器，气味传感器的内部媒介与电解液的挥发气体进行反应，输出电压值，而后系统根据电压值的波动范围判断电池是否发生泄漏。
在一些实施例中，检漏装置还包括连通管60，连通管60同时与第二连接管21远离密封箱10的另一端、第三连接管31远离密封箱10的另一端以及抽气装置连通。
在本实施例中，第一检测组件20和第二检测组件30之间通过连通管60连通，而连通管60可与一个抽气装置连通，降低抽气成本。同时，本实施例中，第一检测组件20和第二检测组件30还均包括断开状态。
当第一检测组件20或第二检测组件30处于断开状态时，第一检测组件20或第二检测组件30与密封腔以及抽气装置分隔，以避免第一检测组件20和第二检测组件30检测时相互影响。
同时可以理解的是，当第一检测组件20对工件200进行检测时，第二检测组件30处于断开状态；同理，当第二检测组件30对工件200进行检测时，第一检测组件20处于断开状态。
在一些实施例中，检漏装置还包括过滤件，过滤件设置于连通管60，用于 过滤流经连通管60的气体，以过滤挥发的电解液。
为了便于理解本申请的技术方案，在此结合图1对上述实施例中第一检测组件20的检测过程中进行说明：
初始时，底板11与箱体12连接，密封腔内没有电池，第一控制阀52、第二控制阀22、第三控制阀23、第四控制阀32及第五控制阀33均关闭。
先通升降驱动件42驱动底板11下降，然后平移驱动件43驱动升降驱动件42移出对应位置，机械手将电池放置于底板11上，定位结构将电池固定，然后平移驱动件43驱动升降驱动件42移动到对应位置，升降驱动件42再驱动底板11上升至密封位置，以与箱体12连接，形成密封腔。
底板11与箱体12连接后，打开第二控制阀22和第三控制阀23，抽气装置动作，对密封腔抽真空，抽真空的过程中可通过视觉组件检测电池是否发生形变，如果未发生形变则继续后续操作。
在真空度符合要求后，关闭抽气装置和第三控制阀23，第一检测器24检测密封腔内是否存在挥发气体，检测完成后打开第一控制阀52和第三控制阀23，同时抽气装置动作，以对密封腔破真空以及替换密封腔和第二连接管21内的气体。
接下来关闭第一控制阀52和第二控制阀22，抽气装置将检测空间内的气体抽出，以使得检测空间内的残余气体排出，残余气体排出后关闭第三控制阀23和抽气装置。然后升降驱动件42驱动底板11下降，平移驱动件43驱动升降驱动件42移出对应位置，机械手取下检测完成的电池，并将下一块电池换上。
可以理解的是，下一块电池通过第二检测组件30进行检测，而第二检测组件30的检测流程与第一检测组件20的检测流程类似，故在此不作赘述。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的 普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种检漏装置，其特征在于，包括：
    密封箱，具有用于容置工件的密封腔；
    第一检测组件，连接于所述密封箱，用于检测工件的挥发气体；及
    第二检测组件，连接于所述密封箱，用于检测工件的挥发气体；
    其中，所述第一检测组件和所述第二检测组件均包括连通状态、检测状态以及排气状态；
    当所述第一检测组件或所述第二检测组件处于所述连通状态时，所述第一检测组件或所述第二检测组件连通所述密封腔和抽气装置；
    当所述第一检测组件或所述第二检测组件处于所述检测状态时，所述第一检测组件或所述第二检测组件与所述密封腔连通，且与抽气装置分隔；
    当所述第一检测组件或所述第二检测组件处于所述排气状态时，所述第一检测组件或所述第二检测组件与所述密封腔分隔。
  2. 根据权利要求1所述的检漏装置，其特征在于，所述密封箱包括底板及箱体，所述底板用于承载工件，所述箱体可拆卸地连接于所述底板，以与所述底板围合形成所述密封腔，所述第一检测组件和所述第二检测组件均连接于所述箱体。
  3. 根据权利要求2所述的检漏装置，其特征在于，所述检漏装置还包括机架及升降驱动件，所述箱体及所述升降驱动件均设置于所述机架，且所述升降驱动件与所述底板传动连接，以驱动所述底板沿第一方向往复移动，所述底板移动的过程中具有密封位置；
    当所述底板位于所述密封位置时，所述底板与所述箱体连接，以围合形成所述密封腔。
  4. 根据权利要求3所述的检漏装置，其特征在于，所述检漏装置还包括平移驱动件，所述平移驱动件设置于所述机架，且与所述升降驱动件传动连接，以驱动所述升降驱动件沿与所述第一方向垂直的第二方向往复移动，所述升降驱动件移动的过程中具有对应位置；
    当所述升降驱动件位于所述对应位置时，所述底板与所述箱体在所述第一方向上对应，以使所述底板可沿所述第一方向移动至所述密封位置。
  5. 根据权利要求2所述的检漏装置，其特征在于，所述箱体包括透明顶板以及侧板，所述侧板的一端固定连接于所述透明顶板，所述底板可拆卸地连接于所述侧板背离所述透明顶板的另一端。
  6. 根据权利要求1所述的检漏装置，其特征在于，所述检漏装置还包括连接组件，所述连接组件连接于所述密封箱，且与所述密封腔连通，所述连接组件包括导通状态及截止状态；
    当所述连接组件处于所述导通状态时，所述密封腔通过所述连接组件与外界连通；
    当所述连接组件处于所述截止状态时，所述连接组件分隔所述密封腔与外界。
  7. 根据权利要求6所述的检漏装置，其特征在于，所述连接组件包括第一连接管及第一控制阀，所述第一连接管连接于所述密封箱，且与所述密封腔连通，所述第一控制阀设置于所述第一连接管，用于控制所述第一连接管的通断。
  8. 根据权利要求1-7任一项所述的检漏装置，其特征在于，所述第一检测组件包括第二连接管、第二控制阀、第三控制阀及第一检测器，所述第二连接管一端与所述密封箱连接，且与所述密封腔连通，另一端用于与抽气装置连通，所述第二控制阀和所述第三控制阀均设置于所述第二连接管，且所述第二控制阀位于所述第三控制阀靠近所述密封箱的一侧，所述第二控制阀和所述第三控制阀均用于控制所述第二连接管的通断，所述第一检测器设置于所述第二连接管，且位于所述第二控制阀和所述第三控制阀之间，用于检测工件的挥发气体。
  9. 根据权利要求8所述的检漏装置，其特征在于，所述第二检测组件包括第三连接管、第四控制阀、第五控制阀及第二检测器，所述第三连接管的一端与所述密封箱连接，且与所述密封腔连通，另一端用于与抽气装置连通，所述第四控制阀和所述第五控制阀均设置于所述第三连接管，且所述第四控制阀位于所述第五控制阀靠近所述密封箱的一侧，所述第四控制阀和所述第五控制阀均用于控制所述第三连接管的通断，所述第二检测器设置于所述第三连接管，且位于所述第四控制阀和所述第五控制阀之间，用于检测工件的挥发气体。
  10. 根据权利要求9所述的检漏装置，其特征在于，所述检漏装置还包括 连通管及过滤件，所述连通管同时与所述第二连接管远离所述密封箱的另一端、所述第三连接管远离所述密封箱的另一端以及抽气装置连通，所述过滤件设置于所述连通管，用于过滤流经所述连通管的气体。
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