Automatic water level control method for IPX7 test
By automatically controlling the water level sensor and electronic controller to adjust the water level of the submersible tank, the problems of manual measurement error and high cost in the prior art are solved, and efficient, accurate and consistent water level control of IPX7 test is achieved, which significantly improves the testing efficiency.
Patent Information
- Application Number
- CN202411330952.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-01-03
AI Technical Summary
In IPX7 testing, the existing technology relies on manual measurement and adjustment of water levels, which is prone to errors and fatigue, affecting the accuracy and consistency of test results, and increases labor costs and testing time.
Design an automatic water level control method, use water level sensors to detect the water level in the submersible tank, and control the inlet and drain solenoid valves through electronic controllers to automatically adjust the water level and ensure the accuracy of the sample test depth.
It avoids human errors, reduces labor costs, significantly improves testing efficiency, reduces dependence on testers, and improves the accuracy and consistency of test results.
Smart Images
Figure CN119248020A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to automatic control equipment, in particular to a method for automatically controlling the water level of a diving box in an IPX7 test in a protection test. Background Art
[0002] As technology products become smaller and more integrated, achieving efficient waterproof sealing in a limited space has become a major challenge. Therefore, the IPX7 test has promoted the development of sealing materials, waterproof structure design, and precision processing technology. The IPX7 test mainly involves the waterproof performance test in the product protection level assessment. It is based on a level defined in GB / T 4208-2017 and is specifically used to measure the waterproof ability of a device when immersed in water. It is widely used in consumer electronics, outdoor sports equipment, smart homes, security monitoring, automotive electronics and other fields, and is an important indicator for improving product durability and user experience. Summary of the invention
[0003] In view of the above-mentioned prior art, the present invention provides an automatic water level control method for IPX7 testing, which can replenish liquid in time for the equipment and avoid manually measuring the depth before replenishing water. It can avoid human errors, reduce labor costs, reduce dependence on testers, and significantly improve test efficiency.
[0004] In order to solve the above technical problems, the present invention proposes an automatic water level control method for IPX7 testing, wherein a sample placement column is provided in a diving box, a water level sensor is installed in the diving box and at a position 100 cm away from the sample placement column, the working range of the water level sensor is ±10 cm, and a water inlet pipe and a drain pipe are respectively provided at the top and bottom of the diving box, the water inlet pipe is provided with a water inlet solenoid valve connected to a normally open tap water pipe, and the drain pipe is provided with a drain solenoid valve connected to a sewage system; the water level sensor serves as an input of an electronic controller, and the output end of the electronic controller is connected to the water inlet solenoid valve and the drain solenoid valve; the water level sensor is used to detect the water level in the diving box and transmit the signal to the electronic controller, and after receiving the signal, the electronic controller controls the opening and closing of the water inlet solenoid valve and the drain solenoid valve to adjust the water level; the specific steps are as follows:
[0005] When the water level is less than 100 cm, the water level sensor transmits a water level signal to the electronic controller, and the electronic controller compares the received water level signal with the set water level value, thereby identifying a water shortage state, and the electronic controller controls the water inlet solenoid valve to open, and tap water flows into the submersible tank; as the water level continues to rise, when the water level reaches 100 cm, the water level sensor transmits a signal to the electronic controller, controlling the water inlet solenoid valve to close;
[0006] After the test sample is placed in the sample placement column, if the water level reaches 105 cm, the electronic controller controls the drainage solenoid valve to open until the water level drops to 100 cm, and the drainage process stops.
[0007] Compared with the prior art, the present invention has the following beneficial effects:
[0008] By automatically controlling the water level, we can avoid the traditional test method that relies on manual measurement and adjustment of the water level. Negligence or fatigue that may occur during manual operation increases the uncertainty of the test, leading to measurement errors, affecting the accuracy and consistency of the test results. Automatic water level control equipment can avoid human errors, reduce labor costs, reduce dependence on testers, and significantly improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 The block diagram of the automatic water level control method for IPX7 test implemented in the present invention.
[0010] In the figure: 1-diving box, 2-water level sensor, 3-electronic controller, 4-water inlet solenoid valve, 5-drainage solenoid valve, 6-sample placement column, 7-sample. DETAILED DESCRIPTION
[0011] The design idea of the automatic water level control method for IPX7 test of the present invention is to detect the water level through the water inlet level switch and the water outlet level switch, and transmit the signal to the electronic controller. After receiving the signal, the electronic controller adjusts the water level by controlling the opening and closing of the water inlet solenoid valve and the water outlet solenoid valve. The method is applied to the IPX7 test, can accurately control the sample test depth, reduce the manual water filling and measurement operations, and effectively improve the test efficiency.
[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.
[0013] like Figure 1As shown, the device for realizing the automatic water level control method for IPX7 test of the present invention mainly includes a diving box 1, a water level sensor 2, an electronic controller 3, a water inlet solenoid valve 4 and a water discharge solenoid valve 5. A sample placement column 6 is provided in the diving box 1, and the water level sensor 2 is installed at a position 100 cm away from the bottom sample placement column 6 in the diving box 1. The working range of the water level sensor 2 is ±10 cm. The upper part and the bottom of the diving box 1 are respectively provided with an inlet pipe and a drain pipe. The water inlet solenoid valve 4 is installed on the water inlet pipe and connected to the normally open tap water pipe. The drain solenoid valve 5 is installed on the drain pipe and connected to the sewage system; the water level sensor 2 is used to detect the water level in the diving box 1 and serves as the input of the electronic controller 3, which is responsible for collecting water level signals. The internal setting value of the electronic sensor 2 is 100 cm, and the output end of the electronic controller 3 is connected to the water inlet solenoid valve 4 and the drain solenoid valve 5; the water level sensor 2 transmits the detected water level signal to the electronic controller 3. After receiving the signal, the electronic controller 3 compares the value input by the water level sensor 2 with the setting value, and sends out a water inlet or drain signal according to the comparison result, thereby controlling the opening and closing of the water inlet solenoid valve 4 and the drain solenoid valve 5 to adjust the water level.
[0014] Water inlet process: When the water level is less than 100cm, the water level sensor 2 transmits the water level signal to the electronic controller 3, and the electronic controller 3 compares the received water level signal with the set water level value, and then identifies the water shortage state. The electronic controller 3 controls the water inlet solenoid valve 4 to open, and the tap water flows into the submersible tank 1 due to the pressure in the pipe. As the water level continues to rise, when the water level reaches 100cm, the water level sensor 2 transmits the signal to the electronic controller 3, and then controls the water inlet solenoid valve 5 to close. If the water level drops due to liquid evaporation or testing, the method of the present invention can replenish the liquid in time, avoiding manual depth measurement and then water replenishment.
[0015] Drainage process: According to the relevant standards, the IPX7 test only requires that the lower surface of the sample is at least 100 cm from the water surface. Therefore, the slight error in the water level rise caused by placing the sample 7 can be ignored. However, considering that some test samples may be large in volume, resulting in a large rise in the liquid level, there is a risk of affecting the test accuracy. Therefore, the water level is set in the electronic controller 3 to send a drainage signal at the 105 cm position, and the drainage solenoid valve 5 is opened until the water level drops to 100 cm, and the drainage process stops.
[0016] Although the present invention has been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many improvements and changes without departing from the purpose of the present invention, which are all within the protection of the present invention.
Claims
1. An automatic water level control method for IPX7 testing, characterized in that: A sample placement column (6) is provided in a diving box (1), a water level sensor (2) is installed in the diving box (1) at a position 100 cm away from the sample placement column (6), the working range of the water level sensor (2) is ±10 cm, a water inlet pipe and a water outlet pipe are provided at the top and bottom of the diving box (1), respectively, the water inlet pipe is provided with a water inlet solenoid valve (4) connected to a normally open tap water pipe, and the water outlet pipe is provided with a water outlet solenoid valve (5) connected to a sewage system; the water level sensor (2) serves as an input of an electronic controller (3), and the output end of the electronic controller (3) is connected to the water inlet solenoid valve (4) and the water outlet solenoid valve (5); the water level sensor (2) is used to detect the water level in the diving box (1) and transmit a signal to the electronic controller (3), and after receiving the signal, the electronic controller (3) controls the opening and closing of the water inlet solenoid valve (4) and the water outlet solenoid valve (5) to adjust the water level; the specific steps are as follows: When the water level is less than 100 cm, the water level sensor (2) transmits a water level signal to the electronic controller (3), and the electronic controller (3) compares the received water level signal with the set water level value, thereby identifying a water shortage state, and the electronic controller (3) controls the water inlet solenoid valve (4) to open, so that tap water flows into the submersible tank (1); as the water level continues to rise, when the water level reaches 100 cm, the water level sensor (2) transmits a signal to the electronic controller (3), thereby controlling the water inlet solenoid valve (5) to close; After the test sample (7) is placed in the sample placement column (6), if the water level reaches 105 cm, the electronic controller (3) controls the drainage solenoid valve (5) to open until the water level drops to 100 cm, and the drainage process stops.