CN215573641U - Double-station air tightness detection system for battery box - Google Patents
Double-station air tightness detection system for battery box Download PDFInfo
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- CN215573641U CN215573641U CN202121044682.8U CN202121044682U CN215573641U CN 215573641 U CN215573641 U CN 215573641U CN 202121044682 U CN202121044682 U CN 202121044682U CN 215573641 U CN215573641 U CN 215573641U
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Abstract
The utility model discloses a double-station air tightness detection system for a battery box, which comprises: the detection station comprises a first detection station and a second detection station, and the first detection station and the second detection station are used for fixedly sealing a product to be detected; the external air source is respectively connected with the first detection station and the second detection station and is used for inflating to-be-detected products on the first detection station and the second detection station; the leakage detection device is used for detecting the air tightness of a product to be detected; the industrial personal computer is internally provided with a PLC control module which is respectively and electrically connected with the detection station, the external air source and the leakage detection device and used for controlling the external air source and the leakage detection device so as to alternately carry out inflation and air tightness detection on the first detection station and the second detection station; the double-station air tightness detection system effectively optimizes the test beat, improves the detection efficiency and simultaneously reduces the equipment investment and the production cost.
Description
Technical Field
The utility model relates to the technical field of industrial automation equipment, in particular to a double-station air tightness detection system for a battery box.
Background
The power supply system is the heart of the new energy automobile, is a power source, is a core component related to the operation mileage and safety of the automobile, has the safety and reliability of the new energy automobile attracted by industry attention, and is one of important guarantees of the safety of the whole automobile. Therefore, the battery box of the new energy automobile needs to be subjected to air tightness detection, and in view of the particularity of research products, the volume inside the product is very large in terms of the cavity of the whole battery box, and the test difficulty is far higher than that of a conventional product.
At present, in order to improve the accuracy of measurement, most factories can adopt an imitation working condition form to detect the air tightness of the battery box, the measurement beat required by the mode is long, wherein the inflation and feeding time occupies 49 percent of beat, the product detection efficiency is seriously influenced, the battery box is not suitable for products with large detection quantity, in addition, more detection equipment and control systems are required to be purchased in order to achieve sufficient detection efficiency, and the investment cost of a production line is greatly increased.
Therefore, a new airtightness detection system for battery cartridges is desired to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-station air tightness detection system for a battery box, which respectively controls an external air source and a leakage detection device through a PLC control module so as to alternately carry out air inflation and air tightness detection on double stations, effectively optimizes the test beat, improves the detection efficiency, fundamentally reduces the equipment investment and reduces the production cost.
To achieve at least one of the above objects, the present invention provides a double-station airtightness detection system for a battery case, comprising: the detection station comprises a first detection station and a second detection station, and the first detection station and the second detection station are used for fixedly sealing a product to be detected; the external air source is respectively connected with the first detection station and the second detection station and is used for inflating to-be-detected products on the first detection station and the second detection station; the leakage detecting device is used for carrying out air tightness detection on the product to be detected; and the industrial personal computer is internally provided with a PLC control module which is respectively electrically connected with the detection station, the external air source and the leakage detection device and used for controlling the external air source and the leakage detection device so as to alternately inflate and detect the air tightness of the first detection station and the second detection station.
According to an embodiment of the utility model, the double-station air tightness detection system further comprises an air pressure sensor, wherein the air pressure sensor is used for detecting whether the air pressure in the product to be detected reaches a preset threshold value; when the air pressure in the product to be detected reaches a preset threshold value, the air pressure sensor sends a signal to the PLC control module, and the PLC control module controls the leakage detection device to perform air tightness detection on the product to be detected.
According to an embodiment of the utility model, the leak detection device comprises a flow sensor and an airtight leak detector, wherein the flow sensor is arranged on the detection station and used for detecting the gas flow in the product to be detected and transmitting flow change data to the airtight leak detector, and the airtight leak detector judges whether the air tightness of the product is qualified or not according to the flow change data.
According to an embodiment of the utility model, the detection station comprises a base and an automatic plugging tool, the automatic plugging tool is arranged on the base, and when the product to be detected is sent to a preset position on the automatic plugging tool, the automatic plugging tool clamps and seals the product to be detected.
According to an embodiment of the utility model, a plugging sensor is further arranged on the detection station, the plugging sensor transmits a signal to the PLC control module after detecting that the product to be detected is tightly sealed by the automatic plugging tool clamp, and the PLC control module controls the external air source to inflate the detection station.
According to an embodiment of the utility model, the double-station airtightness detection system further comprises an indicator lamp, when the airtightness detector detects that the airtightness of the product is unqualified, the airtightness detector sends a signal to the PLC control module, and the PLC control module controls the indicator lamp to be turned on for alarming.
According to an embodiment of the utility model, the detection stations further comprise a third detection station, and when the airtightness leak detector detects that the airtightness of the product is not qualified, the product flows to the third detection station to perform leak source detection.
According to an embodiment of the utility model, a stop valve is arranged on the inflation pipeline of the external air source, the stop valve is electrically connected with the PLC control module, and the PLC control module controls the stop valve to control the external air source to inflate the first detection station or the second detection station.
According to an embodiment of the present invention, the external air source is a pressure-stabilizing air source.
According to an embodiment of the utility model, the double-station air tightness detection system further comprises a detection and control box, and the leakage detection device, the industrial personal computer and the indicator lamp are integrated in the detection and control box.
Further objects and advantages of the utility model will be fully apparent from the ensuing description.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.
Drawings
Fig. 1 shows a schematic diagram of the double-station airtightness detection system.
Fig. 2 shows an electrical control schematic of the PLC control module of the present invention.
In the figure:
1-a base; 2, automatically plugging the tool; 10-a detection station; 11-a first inspection station; 12-a second inspection station; 13-a third inspection station; 14-an occlusion sensor; 20-external air source; 21-a stop valve; 30-a leak detection device; 31-a flow sensor; 32-gas tight leak detector; 40-an industrial personal computer; 100-a PLC control module; 50-air pressure sensor; 60-indicator light; 70-inspection box.
Detailed Description
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
As shown in fig. 1, a two-station gas tightness detection system for a battery cartridge according to an embodiment of the present application is illustrated. Wherein, duplex position gas tightness detecting system includes: the detection device comprises a detection station 10, wherein the detection station 10 comprises a first detection station 11 and a second detection station 12, and the first detection station 11 and the second detection station 12 are used for fixedly sealing a product to be detected; the external air source 20 is connected with the first detection station 11 and the second detection station 12 respectively, and is used for inflating to-be-detected products on the first detection station 11 and the second detection station 12; the leak detection device 30 is used for carrying out air tightness detection on the product to be detected; and the industrial personal computer 40 is provided with a PLC control module 100 in the industrial personal computer 40, the PLC control module 100 is respectively connected with the detection station 10, the external air source 20 and the leakage detection device 30 electrically, and is used for controlling the external air source 20 and the leakage detection device 30 so as to alternately inflate and detect the air tightness of the first detection station 11 and the second detection station 12.
Specifically, the detection station 10 comprises a base 1 and an automatic plugging tool 2, the automatic plugging tool 2 is arranged on the base 1, and when the product to be detected is sent to a preset position on the automatic plugging tool 2, the automatic plugging tool 2 clamps and seals the product to be detected.
More specifically, a plugging sensor 14 is further arranged on the detection station 10, the plugging sensor 14 transmits a signal to the PLC control module 100 after detecting that the product to be detected is tightly sealed by the automatic plugging tool 2, and the PLC control module 100 controls the external air source 20 to inflate the detection station 10. Preferably, the external air source 20 is implemented as a pressure-stabilized air source, that is, the stable pressure is the same as the inflation pressure, which is beneficial to the accuracy of the air tightness detection of the product.
Particularly, a stop valve 21 is disposed on an inflation pipeline of the external air source 20, the stop valve 21 is electrically connected to the PLC control module 100, and the PLC control module 100 controls the stop valve 21 to control the external air source 20 to inflate the first detection station 11 or the second detection station 12, in other words, the stop valve 21 is controlled to alternately inflate the first detection station 11 and the second detection station 12.
Further, the double-station air tightness detection system further comprises an air pressure sensor 50, wherein the air pressure sensor 50 is used for detecting whether the air pressure in the product to be detected reaches a preset threshold value; when the air pressure in the product to be detected reaches a preset threshold value, the air pressure sensor 50 sends a signal to the PLC control module 100, and the PLC control module 100 controls the leak detection device 30 to perform air tightness detection on the product to be detected.
Specifically, the leak detection device 30 includes a flow sensor 31 and an air-tightness leak detector 32, the flow sensor 31 is disposed on the detection station 10 and is configured to detect a gas flow in the product to be detected and transmit flow change data to the air-tightness leak detector 32, and the air-tightness leak detector 32 determines whether the air-tightness of the product is qualified according to the flow change data. In the present example, the flow rate is monitored to determine whether the air tightness of the product is qualified, and the air tightness may also be determined by other means, such as monitoring the change of the air pressure in the product, which is not specifically limited herein.
Furthermore, the double-station airtightness detection system further comprises an indicator lamp 60 and a third detection station 13, when the airtightness leak detector 32 detects that the airtightness of the product is not satisfactory, the airtightness leak detector 32 sends a signal to the PLC control module 100, the PLC control module 100 controls the indicator lamp to be turned on to give an alarm, and at this time, the unsatisfactory product flows to the third station 13 to perform leak source detection, wherein the structure of the third station 13 is the same as that of the first station 11 and that of the second station 12.
Preferably, the double-station airtightness detection system further includes a detection and control box 70, and the leak detection device 30, the industrial personal computer 40 and the indicator lamp 60 are integrated in the detection and control box.
When the double-station air tightness detection system works, a product is conveyed to a preset position of the first detection station 11 through a conveying mechanism for clamping and sealing, the plugging sensor 14 sends a signal to the PLC control module 100 to control the external air source 20 with stable pressure to inflate the first detection station 11, the air pressure sensor 50 monitors the product to reach inflation air pressure and waits for testing, and meanwhile, the PLC control module 100 controls the leak detection device 30 to perform pressure stabilization, measurement and exhaust testing on the second detection station 12; after the second detection station 12 is tested, the PLC control module 100 switches signals to control the leak detection device 30 to perform pressure stabilization, measurement and exhaust tests on the first detection station 11, meanwhile, the second detection station 12 is subjected to blanking and new products to be detected are loaded, the automatic plugging tool 2 clamps and seals the products to be detected, the plugging sensor 14 sends signals to the PLC control module 100, the external air source 20 with stable pressure inflates the second detection station 12, the air pressure sensor 50 monitors the products to reach inflation air pressure and then waits for testing, and therefore the cycle is used for alternately performing inflation and air tightness detection on the two stations. If the product is qualified in the system test process, the flow is transferred to the next procedure; and if the product is not qualified, the indicator lamp gives an alarm, and the product flows to a third detection station to detect a leakage point.
It should be understood that the feeding time and the inflating time account for 49% of the whole detection cycle, and by the above-mentioned alternative double-station inflating and airtight detection, that is, the feeding and inflating of the product are performed on the second detection station 12 while the airtight detection of the first detection station 11 is performed, compared with the conventional airtight detection system product, the detection cycle of the double-station airtight detection system is reduced by 49%, the detection cycle is effectively optimized, the detection efficiency is improved, and meanwhile, the equipment investment is fundamentally reduced, and the production cost is reduced.
It will be appreciated by persons skilled in the art that the embodiments of the utility model shown in the foregoing description are by way of example only and are not limiting of the utility model. The objects of the utility model have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. A double-station gas tightness detection system for a battery cartridge, characterized in that it comprises:
the detection station comprises a first detection station and a second detection station, and the first detection station and the second detection station are used for fixedly sealing a product to be detected;
the external air source is respectively connected with the first detection station and the second detection station and is used for inflating to-be-detected products on the first detection station and the second detection station;
the leakage detecting device is used for carrying out air tightness detection on the product to be detected; and
the industrial computer, be equipped with PLC control module in the industrial computer, PLC control module respectively with detect the station external air supply and leak hunting device electricity is connected, is used for control external air supply with leak hunting device is with right first detection station with the second detects the station and aerifys and gas tightness detection in turn.
2. The double-station air tightness detection system for the battery box according to claim 1, characterized by further comprising an air pressure sensor for detecting whether the air pressure in the product to be detected reaches a preset threshold value; when the air pressure in the product to be detected reaches a preset threshold value, the air pressure sensor sends a signal to the PLC control module, and the PLC control module controls the leakage detection device to perform air tightness detection on the product to be detected.
3. The double-station gas tightness detection system for the battery box according to claim 1, wherein the leak detection device comprises a flow sensor and a gas tightness detector, the flow sensor is arranged on the detection station and used for detecting the gas flow in the product to be detected and transmitting flow change data to the gas tightness detector, and the gas tightness detector judges whether the gas tightness of the product is qualified or not according to the flow change data.
4. The double-station air tightness detection system for the battery box according to claim 1, wherein the detection station comprises a base and an automatic plugging tool, the automatic plugging tool is arranged on the base, and when the product to be detected is conveyed to a preset position on the automatic plugging tool, the automatic plugging tool clamps and seals the product to be detected.
5. The double-station air tightness detection system for the battery box according to claim 4, wherein a plugging sensor is further arranged on the detection station, the plugging sensor transmits a signal to the PLC control module after detecting that the product to be detected is tightly sealed by the automatic plugging tool clamp, and the PLC control module controls the external air source to inflate the detection station.
6. The double-station airtightness detection system for the battery box according to claim 3, further comprising an indicator lamp, wherein when the airtightness leak detector detects that the airtightness of the product is not satisfactory, the airtightness leak detector sends a signal to the PLC control module, and the PLC control module controls the indicator lamp to turn on for alarm.
7. The dual station hermetic seal detection system for a battery case of claim 6, wherein the detection stations further comprise a third detection station to which the product stream is diverted for leak detection when the hermetic seal detector detects that the product is not hermetic.
8. The double-station air tightness detection system for the battery box according to claim 1, wherein a stop valve is arranged on an air inflation pipeline of an external air source, the stop valve is electrically connected with the PLC control module, and the PLC control module controls the stop valve to control the external air source to inflate the first detection station or the second detection station.
9. The dual-station gas tightness detection system for the battery box according to claim 1, wherein the external gas source is a pressure-stabilized gas source.
10. The double-station airtightness detection system for the battery box according to claim 6, further comprising a detection and control box, wherein the leakage detection device, the industrial personal computer and the indicator lamp are integrated in the detection and control box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121044682.8U CN215573641U (en) | 2021-05-14 | 2021-05-14 | Double-station air tightness detection system for battery box |
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| CN202121044682.8U CN215573641U (en) | 2021-05-14 | 2021-05-14 | Double-station air tightness detection system for battery box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168917A1 (en) * | 2022-03-11 | 2023-09-14 | 无锡先导智能装备股份有限公司 | Leakage detection apparatus |
| CN117030154A (en) * | 2023-10-08 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | Air tightness detection method and test system |
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2021
- 2021-05-14 CN CN202121044682.8U patent/CN215573641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168917A1 (en) * | 2022-03-11 | 2023-09-14 | 无锡先导智能装备股份有限公司 | Leakage detection apparatus |
| CN117030154A (en) * | 2023-10-08 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | Air tightness detection method and test system |
| CN117030154B (en) * | 2023-10-08 | 2024-02-23 | 宁德时代新能源科技股份有限公司 | Air tightness detection method and test system |
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