Battery box cover air tightness detection equipment

Abstract

The utility model relates to a battery box cover air tightness detection equipment relates to battery box cover air tightness detection field. Including sealed pressure plate subassembly, main control operation screen and pressure sensor, battery box is installed on sealed pressure plate subassembly, and sealed connection between sealed pressure plate subassembly, and the front end of sealed pressure plate subassembly is provided with air inlet, and pressure sensor is installed in sealed pressure plate subassembly, and main control operation screen sets up in one side of sealed pressure plate subassembly, and communication connection with pressure sensor. The utility model can realize detecting all needed detection parts of product, will not exist the missed detection, miss the inferior product, can carry out the positive pressure test, realizes the avoidance welding subtle sand eye, can realize product test data data, measures the product protection actual level, can realize the connection system MES, makes things convenient for the subsequent traceability, can realize one -time detection product specific which pressure relief position, one -time completion repair welding, reduces the production cost.

Description

Technical Field

[0001] This utility model relates to the field of battery box cover airtightness testing, specifically a battery box cover airtightness testing device. Background Technology

[0002] The current battery box cover requires the following inspection process: 1. After laser welding all eight weld seams, a weld seam inspection penetrant is used to check for defects such as incomplete welds, false welds, poor welds, and pinholes; 2. If the weld seam inspection penetrant appears on the other side of the product during inspection, it indicates that the product does not meet IP67 protection requirements and needs to be cleaned and re-welded; 3. After re-welding, the product is inspected again with a weld seam inspection penetrant until it meets IP67 requirements. Currently, the above inspection is generally performed manually, which has the following technical defects: (1) There are instances of missed detections and omissions due to human subjective factors; (2) There are minute weld defects that are objectively undetectable; (3) Testing is time-consuming and labor costs are high; (4) It is impossible to digitize and systematize the data, and it is impossible to upload the data to the MES system to provide a basis for verification.

[0003] Therefore, how to provide a battery box cover airtightness testing device has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To address at least one technical problem in the background art, this utility model provides a battery box cover airtightness testing device, which can test all parts of the product that need to be tested, without any omissions or missing defective products; it can perform positive pressure testing to avoid minor pinholes in welding; it can digitize product test data to determine the actual protection level of the product; it can be connected to the MES system for convenient subsequent traceability; and it can detect specific pressure relief locations of the product in one go, complete the repair welding in one go, and reduce production costs.

[0005] To achieve the above objectives, this utility model provides a battery box cover airtightness testing device, comprising: a sealing pressure plate assembly, a main control operation screen, and a pressure sensor. The battery box is mounted on the sealing pressure plate assembly and is sealed to the sealing pressure plate assembly. An air inlet is provided at the front end of the sealing pressure plate assembly. A pressure sensor is installed inside the sealing pressure plate assembly. The main control operation screen is located on one side of the sealing pressure plate assembly and is communicatively connected to the pressure sensor.

[0006] Furthermore, a flow valve is installed at the air inlet.

[0007] Furthermore, the sealing pressure plate assembly includes a frame, a front sealing pressure plate, a rear sealing pressure plate, and two side sealing pressure plates. The front sealing pressure plate is installed on the front side of the frame via a cylinder, the rear sealing pressure plate is installed on the rear side of the frame via a cylinder, and the two side sealing pressure plates are respectively installed on both sides of the frame via cylinders. The cylinders are communicatively connected to the main control operation screen.

[0008] Furthermore, sealing strips are connected to the outer sides of the front sealing plate, the rear sealing plate, and the two side sealing plates.

[0009] Furthermore, the sealing strip is made of silicone or fluororubber.

[0010] Furthermore, a temperature sensor is also installed inside the sealing pressure plate assembly, and the temperature sensor is communicatively connected to the main control panel.

[0011] Furthermore, both the sealing pressure plate assembly and the main control panel are fixed on the support frame.

[0012] The beneficial effects of this utility model are as follows: This invention can detect all necessary parts of a product without missing any defective products; it can perform positive pressure testing to avoid minor weld defects and ensure 100% product yield; it can digitize product test data to determine the actual protection level of the product; it can be connected to a MES system for easy traceability; it can detect specific pressure relief locations on a product in one go and complete repair welding in one go, reducing production costs; it can replace weld penetration testing (chemical agent) testing, improving the working environment for employees and enhancing health protection. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the figure: 1-Main control panel; 2-Battery box; 3-Air inlet; 4-Front sealing plate; 5-Rear sealing plate; 6-Sealable side plate; 7-Support frame. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0017] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0018] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0019] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0020] To achieve the above objectives, such as Figure 1As shown, this utility model provides a battery box cover airtightness testing device, including: a sealing pressure plate assembly, a main control panel 1, and a pressure sensor. The battery box 2 is mounted on the sealing pressure plate assembly and is sealed to the sealing pressure plate assembly. An air inlet 3 is provided at the front end of the sealing pressure plate assembly. A pressure sensor is installed inside the sealing pressure plate assembly. The main control panel 1 is located on one side of the sealing pressure plate assembly and is communicatively connected to the pressure sensor. The main control panel 1 can control the operation of various components of the device, including controlling the sealing of parts that do not need to be tested, setting the positive pressure test air pressure value for the product, the test time, detecting the internal air pressure value of the product, calculating the leakage amount, and uploading to the MES system. The air inlet is used to inflate the inside of the product for positive pressure testing. The pressure sensor must have high resolution (0.01%FS), low drift, and low hysteresis characteristics.

[0021] To further optimize the technical solution, flow valves are installed at the three air inlets. The flow valves are connected to the main control panel to control the air intake flow.

[0022] To further optimize the technical solution, the sealing pressure plate assembly includes a frame, a front sealing pressure plate 4, a rear sealing pressure plate 5, and two side sealing pressure plates 6. The front sealing pressure plate 4 is mounted on the front side of the frame via a cylinder, the rear sealing pressure plate 5 is mounted on the rear side of the frame via a cylinder, and the two side sealing pressure plates 6 are mounted on both sides of the frame via cylinders. The cylinders are communicatively connected to the main control panel. The sealing pressure plate assembly ensures that all areas except the product weld seams are sealed airtight and do not affect weld seam inspection. Precise control via cylinders ensures reliable sealing of the product while preventing product damage or excessive deformation.

[0023] To further optimize the technical solution, sealing strips are connected to the outer sides of the front sealing pressure plate 4, the rear sealing pressure plate 5, and the two side sealing pressure plates 6.

[0024] To further optimize the technical solution, the sealing strip is made of silicone or fluororubber.

[0025] To further optimize the technical solution, a temperature sensor is also installed inside the sealing plate assembly, and this temperature sensor is communicatively connected to the main control panel. The temperature sensor is used for real-time temperature compensation of the pressure / flow data. Through the output of this invention, time-pressure / flow curve analysis can be achieved to identify large leaks, slow leaks, and locate leak areas.

[0026] The technical solution was further optimized, and both the sealing pressure plate assembly and the main control operation screen were fixed on the support frame 7.

[0027] This invention can detect all necessary parts of a product without missing any defective products; it can perform positive pressure testing to avoid minor weld defects and ensure 100% product yield; it can digitize product test data to determine the actual protection level of the product; it can connect to a MES system to upload test results, equipment status, alarm information, etc., enabling production data traceability and quality monitoring; it can detect specific pressure relief locations on a product in one go, completing repair welding in one go, reducing production costs; and it can replace weld penetration agent (chemical agent) testing, improving the employee working environment and enhancing health protection.

[0028] The testing procedures for this utility model are as follows: (1) The testing equipment shall be connected to electricity and gas in sequence and according to requirements; (2) Install the battery box into the testing equipment according to the installation requirements; (3) The main control panel starts the button, and the sealing side pressure plate, sealing front pressure plate and sealing rear pressure plate are pressed firmly against the product flange edge by the cylinder to achieve a sealed state with the sealing pressure plate assembly of the testing equipment without leakage. The protection can meet IP68 (the sealing pressure plate assembly and the battery box contact surface are equipped with sealing strips to ensure sealing). (4) Input the air pressure of 3.5±0.5KPa that meets the IP67 requirements into the main control panel, and set the positive pressure time to 60s and the pressure holding time to 60s; (5) Start the test by pressing the start test button on the main control screen.

[0029] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A battery box cover airtightness testing device, characterized in that, include: The system includes a sealing pressure plate assembly, a main control panel, and a pressure sensor. The battery box is mounted on the sealing pressure plate assembly and is sealed to it. The front end of the sealing pressure plate assembly has an air inlet. The pressure sensor is installed inside the sealing pressure plate assembly. The main control panel is located on one side of the sealing pressure plate assembly and is communicatively connected to the pressure sensor.

2. The battery box cover airtightness testing device as described in claim 1, characterized in that, A flow valve is installed at the air inlet.

3. The battery box cover airtightness testing device as described in claim 1, characterized in that, The sealing pressure plate assembly includes a frame, a front sealing pressure plate, a rear sealing pressure plate, and two side sealing pressure plates. The front sealing pressure plate is installed on the front side of the frame via a cylinder, the rear sealing pressure plate is installed on the rear side of the frame via a cylinder, and the two side sealing pressure plates are respectively installed on both sides of the frame via cylinders. The cylinders are communicatively connected to the main control operation screen.

4. The battery box cover airtightness testing device as described in claim 3, characterized in that, Sealing strips are connected to the outer sides of the front sealing plate, the rear sealing plate, and the two side sealing plates.

5. The battery box cover airtightness testing device as described in claim 4, characterized in that, The sealing strip is made of silicone or fluororubber.

6. The battery box cover airtightness testing device as described in claim 1, characterized in that, The sealing pressure plate assembly is also equipped with a temperature sensor, which is communicatively connected to the main control panel.

7. The battery box cover airtightness testing device as described in claim 1, characterized in that, Both the sealing pressure plate assembly and the main control panel are fixed on the support frame.

Images