Electronic equipment product dustproof test device and method

Abstract

The invention relates to the technical field of electronic product testing, in particular to an electronic equipment product dustproof testing device and method.The electronic equipment product dustproof testing device comprises an air blowing structure, a supporting frame and a box, the supporting frame is fixed to the bottom of the box, the air blowing structure is communicated with the box, the electronic equipment product dustproof testing device further comprises a discharging assembly and a replacement cavity, and the discharging assembly comprises a supporting table and a driving part; the supporting table is slidably arranged in the box body; the driving piece is used for driving the supporting table to move; the replacement cavity comprises a baffle and a replacement shell, the replacement shell is fixed to one side of the box body, and the baffle is arranged in the replacement shell in a sliding mode and used for sealing an opening between the replacement shell and the box body; the supporting table is further provided with a sealing plate, and the sealing plate is used for sealing the opening after the baffle is pushed away. Therefore, the contact time and the contact area of the product and the outside can be greatly reduced when the product is moved, the disturbance to the test environment is reduced, and the next test can be carried out more quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic product testing, and in particular to a dustproof testing device and method for electronic equipment products. Background Art

[0002] During the design and manufacturing process, most electronic products will undergo a series of rigorous tests to ensure that they can operate reliably in various environments. Dust resistance testing is one of the important environmental adaptability tests, which is mainly used to evaluate the performance and reliability of products in dusty environments. Dust resistance testing of electronic products is usually carried out according to international standards such as IEC (International Electrotechnical Commission), such as the IP rating system defined in IEC 60529. For dust resistance testing, the most common is to test to reach IP5X (partial dust resistance) or IP6X (complete dust resistance). These tests are usually carried out in a dusty confined space, using a special test chamber to simulate an extreme dust environment. After the product is exposed to this environment for a period of time, it will be checked whether dust has entered the interior and whether the function is affected.

[0003] The existing dust test process is to open the test box, put in the electronic product to be tested, close the cabinet, let in dust and wait for it to stabilize before testing. After the test is completed, the box needs to be opened to take out the electronic product. During this process, the test space is connected to the outside world, which will cause external environmental pollution. At the same time, after putting in the electronic product, it is necessary to wait again for the internal dust distribution to stabilize, which prolongs the operation time and reduces the test efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a dustproof testing device and method for electronic equipment products, which is intended to significantly reduce the contact time and contact area between the product and the outside when the product is moved, reduce the disturbance to the test environment, and facilitate faster next test.

[0005] To achieve the above-mentioned purpose, in a first aspect, the present invention provides a dustproof test device for electronic equipment products, comprising a blast structure, a support frame and a box body, wherein the support frame is fixed to the bottom of the box body, the blast structure is connected to the box body, and further comprises a discharge assembly and a replacement cavity, wherein the discharge assembly comprises a support platform and a driving member, wherein the support platform is slidably disposed in the box body, and the driving member is used to drive the support platform to move;

[0006] The replacement cavity comprises a baffle and a replacement shell, wherein the replacement shell is fixed to one side of the housing, and the baffle is slidably disposed in the replacement shell to close the opening between the replacement shell and the housing;

[0007] The support platform also has a sealing plate, and the sealing plate is used to seal the opening after the baffle is pushed open.

[0008] Wherein, the discharging assembly further comprises a sealing ring, which is fixedly connected to the sealing plate and is located between the sealing plate and the replacement shell.

[0009] Wherein, the discharging assembly also includes a driving controller, and the driving controller is used to control the moving speed of the driving member according to the position of the above-mentioned support platform in the box body.

[0010] Among them, the drive controller includes a photoelectric sensor, a control unit and a speed detection unit. The photoelectric sensor is arranged on one side of the support table and is used to detect that the support table is in a box body or a replacement shell. The control unit is used to match the corresponding moving speed according to the position of the support table. The speed detection unit is used to monitor the moving speed of the support table.

[0011] Wherein, the displacement shell includes a shell, a cover plate and a control cylinder, the cover plate is slidably connected to the shell and is located on the top of the shell, the control cylinder is fixed on the shell, and the output end of the control cylinder is fixedly connected to the cover plate.

[0012] Among them, the replacement shell also includes an air pressure sensor, a first controller, an air supply pump and an air outlet pipe, a plurality of air outlet holes are arranged on the baffle, the air pressure sensor is arranged on the shell and the box body, the first controller is connected to the air pressure sensor, the air supply pump is connected to the first controller, one end of the air outlet pipe is connected to the air supply pump, and the other end of the air outlet pipe is connected to the baffle.

[0013] Among them, the first controller includes a first air pressure detection unit, a second air pressure detection unit, a comparison unit and an air pump control unit, the first air pressure detection unit is used to detect the first air pressure value in the box body, the second air pressure detection unit is used to detect the second air pressure value in the shell body, the comparison unit is used to calculate the difference between the first air pressure value and the second air pressure value, and the air pump control unit is used to control the air pump control unit to control the operating power of the air supply pump based on the difference.

[0014] Wherein, the replacement cavity further includes a limiting structure, and the limiting structure is used to limit the baffle after the baffle is pushed to a preset position.

[0015] In a second aspect, the present invention further provides a method for testing dust resistance of electronic equipment products, comprising: placing the product to be tested on a support table in the replacement cavity;

[0016] The driving member is started to drive the support platform to move into the box body, and the baffle is reset to close the opening between the replacement shell and the box body;

[0017] Start the air blowing structure to fill the box with dust airflow;

[0018] After the dust airflow is stable, test the product to be tested;

[0019] After the test is completed, the driving member drives the support platform to push open the baffle, so that the product to be tested after the test is completed enters the replacement cavity, and the opening is closed by the sealing plate on the support platform.

[0020] The present invention provides an electronic equipment product dustproof testing device and method, the basic structure of the device is composed of a box body, and a support frame is provided at the bottom of the box body, and the support frame is used to fix the entire device to ensure its stability during use. The air blowing structure is connected to the inside of the box body, and the dust flow in different environments can be simulated by controlling the air volume, so as to detect the dustproof ability of the electronic equipment product. As one of the important components of the device, the discharging assembly includes two major parts: a support table and a driving member. The support table can slide along the inside of the box body, and its movement is controlled by the driving member, so that the product to be tested placed thereon can be driven to move. During operation, the product to be tested is placed on the support table in the replacement cavity; the driving member is started to drive the support table to move into the box body, at which time the baffle is reset to close the opening between the replacement shell and the box body; the air blowing structure is started to fill the box body with dust airflow; after the dust airflow is stable, the product to be tested is tested; after the test is completed, the driving member drives the support table to push open the baffle, so that the product to be tested after the test is completed enters the replacement cavity, and at the same time, the opening is closed by the sealing plate on the support table, thereby greatly reducing the contact time and contact area between the product and the outside when moving the product, reducing the disturbance to the test environment, and facilitating the next test to be carried out faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural diagram of a dustproof testing device for electronic equipment products of the present invention.

[0023] Figure 2 It is a transverse cross-sectional structural diagram of a dustproof testing device for electronic equipment products of the present invention.

[0024] Figure 3 yes Figure 2 A partial enlargement of detail A.

[0025] Figure 4 It is a longitudinal cross-sectional structural diagram of a dustproof testing device and method for electronic equipment products of the present invention.

[0026] Figure 5 It is a structural diagram of the first controller of the present invention.

[0027] Figure 6 The present invention is a flow chart of a dustproof testing method for electronic equipment products.

[0028] Blowing structure 101, support frame 102, box body 103, discharging assembly 104, replacement chamber 105, support platform 106, driving member 107, baffle 108, replacement shell 109, sealing plate 110, sealing ring 111, driving controller 112, photoelectric sensor 113, control unit 114, speed detection unit 115, shell 116, cover plate 117, control cylinder 118, air pressure sensor 119, first controller 120, air supply pump 121, air outlet pipe 122, first air pressure detection unit 123, second air pressure detection unit 124, comparison unit 125, air pump control unit 126, limiting structure 127, adjusting screw 128, support rod 129, limiting block 130, limiting spring 131, extension channel 132, exhaust pipe 133, recovery box 134. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0031] First embodiment

[0032] See also Figure 1 to Figure 5The present invention provides a dustproof testing device for electronic equipment products, comprising a blast structure 101, a support frame 102 and a box body 103, wherein the support frame 102 is fixed at the bottom of the box body 103, the blower structure is connected to the box body 103, and further comprises a discharging assembly 104 and a replacement chamber 105, wherein the discharging assembly 104 comprises a support platform 106 and a driving member 107, wherein the support platform 106 is slidably arranged in the box body 103, and the driving member 107 is used to drive the support platform 106 to move; the replacement chamber 105 comprises a baffle 108 and a replacement shell 109, wherein the replacement shell 109 is fixed at one side of the box body 103, and the baffle 108 is slidably arranged in the replacement shell 109, and is used to close the opening between the replacement shell 109 and the box body 103; the support platform 106 also has a sealing plate 110, and the sealing plate 110 is used to close the opening after the baffle 108 is pushed open.

[0033] In this embodiment, the basic structure of the device is composed of a box body 103, and a support frame 102 is provided at the bottom of the box body 103. The support frame 102 is used to fix the entire device to ensure its stability during use. The air blowing structure 101 is connected to the inside of the box body 103, and the dust flow in different environments can be simulated by controlling the air volume, so as to detect the dustproof ability of electronic equipment products. As one of the important components of the device, the discharging assembly 104 includes two major parts: a support platform 106 and a driving member 107. The support platform 106 can slide along the inside of the box body 103, and its movement is controlled by the driving member 107, so that the product to be tested placed thereon can be driven to move. During operation, the product to be tested is placed on the support platform 106 in the replacement chamber 105; the driving member 107 is started to drive the support platform 106 to move into the box 103, at which time the baffle 108 is reset to close the opening between the replacement shell 109 and the box 103; the blowing structure 101 is started to fill the box 103 with dust airflow; after the dust airflow is stable, the product to be tested is tested; after the test is completed, the driving member 107 drives the support platform 106 to push open the baffle 108, so that the product to be tested after the test is completed enters the replacement chamber 105, and at the same time, the opening is closed by the sealing plate 110 on the support platform 106, so that the time and contact area between the product and the outside when the product is moved can be greatly reduced, reducing the disturbance to the test environment, and facilitating the next test to be carried out faster. In order to facilitate the reset of the baffle 108, a reset spring can be set on the back of the baffle 108.

[0034] The discharge assembly 104 further includes a sealing ring 111 , which is fixedly connected to the sealing plate and is located between the sealing plate and the displacement shell 109 .

[0035] The function of the sealing ring 111 is to enhance the sealing effect when the sealing plate closes the opening, so as to prevent dust from leaking from the opening during the test and affecting the accuracy of the test result.

[0036] The discharging assembly 104 further includes a driving controller 112 , and the driving controller 112 is used to control the moving speed of the driving member 107 according to the position of the supporting platform 106 in the box body 103 .

[0037] The controller can adjust the working state of the driving member 107 according to the specific position of the support platform 106 in the box body 103, so that the support platform 106 moves smoothly at a preset speed, reducing the degree of disturbance to the internal dust environment during the movement.

[0038] The drive controller 112 includes a photoelectric sensor 113, a control unit 114 and a speed detection unit 115. The photoelectric sensor 113 is arranged on one side of the support table 106 and is used to detect whether the support table 106 is in the box body 103 or the replacement shell 109. The control unit 114 is used to match the corresponding moving speed according to the position of the support table 106. The speed detection unit is used to monitor the moving speed of the support table 106.

[0039] The photoelectric sensor 113 is installed on one side of the support platform 106. It can detect the position information of the support platform 106 in real time and determine whether the support platform 106 is inside the box 103 or inside the replacement shell 109. The control unit 114 receives the information from the photoelectric sensor 113 and adjusts the speed of the driving member 107 accordingly to match the current position of the support platform 106. The speed detection unit is responsible for monitoring the actual moving speed of the support platform 106 to ensure that it is consistent with the speed set by the control unit 114. It can move quickly when it is in the shell 116, and move at a preset slower uniform speed after it is in the box 103 to reduce disturbance to the environment.

[0040] The displacement shell 109 includes a shell 116, a cover plate 117 and a control cylinder 118. The cover plate 117 is slidably connected to the shell 116 and is located at the top of the shell 116. The control cylinder 118 is fixed on the shell 116, and the output end of the control cylinder 118 is fixedly connected to the cover plate 117.

[0041] The cover plate 117 is installed with the housing 116 in a sliding connection and is located at the top of the housing 116. The advantage of this design is that when the environment in the box 103 needs to be adjusted, the cover plate 117 can be easily opened to perform necessary maintenance or inspection work. The control cylinder 118 is fixed on the housing 116, and its output end is connected to the cover plate 117. The cover plate 117 is opened and closed by the action of the control cylinder 118, thereby achieving the purpose of controlling dust entry. This design not only improves the convenience of operation of the equipment, but also enhances the safety and reliability of the equipment.

[0042] The replacement shell 109 also includes an air pressure sensor 119, a first controller 120, an air supply pump 121 and an air outlet pipe 122. The baffle 108 is provided with a plurality of air outlet holes. The air pressure sensor 119 is arranged in the shell 116 and the box body 103. The first controller 120 is connected to the air pressure sensor 119. The air supply pump 121 is connected to the first controller 120. One end of the air outlet pipe 122 is connected to the air supply pump 121, and the other end of the air outlet pipe 122 is connected to the baffle 108.

[0043] A plurality of air outlets are provided on the baffle 108, which helps to evenly distribute the gas and improve the test accuracy. The air pressure sensor 119 is respectively provided inside the shell 116 and inside the box 103, and is used to detect the pressure changes of these two parts in real time. The first controller 120 is connected to the air pressure sensor 119, and is used to process the air pressure data and control the operation state of the air supply pump 121 accordingly. The air supply pump 121 is connected to the baffle 108 through the air outlet pipe 122, one end of the air outlet pipe 122 is connected to the air supply pump 121, and the other end is connected to the air outlet hole on the baffle 108, so as to ensure that the air flow can smoothly pass through the baffle 108, so as to impact with the dust gas that wants to enter the shell 116 from the box 103, and reduce the degree of dust leakage.

[0044] The first controller 120 includes a first air pressure detection unit 123, a second air pressure detection unit 124, a comparison unit 25 and an air pump control unit 126, the first air pressure detection unit 123 is used to detect the first air pressure value in the box body 103, the second air pressure detection unit 124 is used to detect the second air pressure value in the shell 116, the comparison unit 25 is used to calculate the difference between the first air pressure value and the second air pressure value, and the air pump control unit 126 is used to control the operating power of the air supply pump 121 based on the difference.

[0045] The first air pressure detection unit 123 is used to detect the first air pressure value in the box 103, and the second air pressure detection unit 124 is used to detect the second air pressure value in the housing 116. The comparison unit 25 is responsible for calculating the difference between the two air pressure values, and the air pump control unit 126 adjusts the operating power of the air supply pump 121 based on the difference to achieve the required air pressure balance.

[0046] The replacement chamber 105 further includes a limiting structure 127, and the limiting structure 127 is used to limit the baffle 108 after the baffle 108 is pushed to a preset position, so as to facilitate the replacement of the product to be tested.

[0047] The limiting structure 127 includes an adjusting screw 128, a supporting rod 129, a limiting block 130 and a limiting spring 131. The supporting rod 129 is slidably disposed in the housing 116. The adjusting screw 128 is threadedly connected to the supporting rod 129. The limiting block 130 is slidably connected to the supporting rod 129 and is close to the baffle 108. The limiting spring 131 is disposed between the supporting rod 129 and the limiting block 130. In order to be applicable to products of different sizes, the adjusting screw 128 can be rotated to adjust the position of the supporting rod 129, thereby changing the position of the limiting block 130. The limiting block 130 can cooperate with the groove on the baffle 108 to limit the baffle 108. After replacing the product to be tested, the limiting block 130 can be pulled down to release the baffle 108.

[0048] The replacement chamber 105 also includes an extension channel 132 , an exhaust pipe 133 and a recovery box 134 . The extension channel 132 is fixed at the opening. A plurality of exhaust holes are provided on the extension channel 132 . The exhaust pipe 133 is connected to the extension channel 132 . The recovery box 134 is connected to the exhaust pipe 133 .

[0049] In addition, the replacement chamber 105 is also equipped with components such as an extension channel 132, an exhaust pipe 133 and a recovery box 134. The extension channel 132 is fixed at the opening between the box body 103 and the replacement shell 109, and a plurality of exhaust holes are opened thereon to discharge the excess gas. The exhaust pipe 133 is connected to the extension channel 132 and eventually leads to the recovery box 134, which is used to collect and process the exhausted gas to ensure that the external environment is not polluted. The specific working method is that the sealing plate 110 first contacts the extension channel 132 to seal the extension channel 132 and the passage in the box body 103, and then the air supply pump 121 works to pass gas into the extension channel 132, so that the gas carrying dust can enter the recovery box 134 from the exhaust holes on the extension channel 132 along the exhaust pipe 133 and be absorbed.

[0050] Second embodiment

[0051] See also Figure 6 Based on the first embodiment, the present invention further provides a dustproof testing method for electronic equipment products, comprising:

[0052] S201: placing the product to be tested on the support table 106 in the replacement cavity 105;

[0053] The tester places the electronic device product that needs to be tested for dustproof on the support table 106 in the replacement chamber 105. The support table 106 is designed as a slidable structure to facilitate the movement of the product during the subsequent test process. This step ensures that the test product is in the correct position and is ready for the subsequent test process.

[0054] S202: The driving member 107 is started to drive the support platform 106 to move into the box body 103, and the baffle 108 is reset to close the opening between the replacement shell 109 and the box body 103;

[0055] When the driving member 107 is started, the driving member 107 will drive the support platform 106 and the product to be tested thereon to move smoothly into the box 103. During this process, the baffle 108 will be reset at a preset position, thereby closing the opening between the replacement shell 109 and the box 103. This design can prevent dust leakage during the test, maintain the closedness of the test environment, and ensure the accuracy of the test.

[0056] S203 starts the air blowing structure 101 to fill the box 103 with dust airflow;

[0057] The air blowing structure 101 is started to start to fill the air flow containing dust into the box body 103. The start of the air blowing structure 101 can simulate the dust environment that may be encountered in the actual use environment, so as to comprehensively test the dustproof performance of the electronic equipment.

[0058] After the S204 dust airflow is stable, test the product to be tested;

[0059] After the dust airflow is stable, the dustproof performance test can be started on the product to be tested placed in the box 103. This stage is the most critical part of the entire test process. The tester needs to closely monitor the changes in the test environment and record the test data to evaluate the actual dustproof effect of the product.

[0060] After the test in S205 is completed, the driving member 107 drives the support platform 106 to push open the baffle 108 , so that the product to be tested after the test is completed enters the replacement cavity 105 , and the opening is closed by the sealing plate 110 on the support platform 106 .

[0061] After the test is finished, the driving member 107 is started again, this time to push the support table 106 and the tested product back into the replacement chamber 105. During this process, the sealing plate 110 on the support table 106 will automatically close the opening to prevent dust from leaking out. This can not only protect the test environment, but also ensure that the tested device can be safely returned to the initial position to facilitate the next operation.

[0062] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A dustproof test device for electronic equipment, comprising a blower structure, a support frame and a box, wherein the support frame is fixed to the bottom of the box, and the blower structure is connected to the box, characterized in that: It also includes a discharging assembly and a replacement cavity, wherein the discharging assembly includes a support platform and a driving member, wherein the support platform is slidably disposed in the box body, and the driving member is used to drive the support platform to move; The replacement cavity comprises a baffle and a replacement shell, wherein the replacement shell is fixed to one side of the box body, and the baffle is slidably disposed in the replacement shell to close the opening between the replacement shell and the box body; The support platform also has a sealing plate, and the sealing plate is used to seal the opening after the baffle is pushed open.

2. The dustproof testing device for electronic equipment according to claim 1, characterized in that: The discharging assembly further comprises a sealing ring, which is fixedly connected to the sealing plate and is located between the sealing plate and the displacement shell.

3. The dustproof testing device for electronic equipment according to claim 2, characterized in that: The discharging assembly further includes a driving controller, which is used to control the moving speed of the driving member according to the position of the supporting platform in the box.

4. The dustproof testing device for electronic equipment according to claim 3, characterized in that: The drive controller includes a photoelectric sensor, a control unit and a speed detection unit. The photoelectric sensor is arranged on one side of the support table and is used to detect whether the support table is in a box body or a replacement shell. The control unit is used to match the corresponding moving speed according to the position of the support table. The speed detection unit is used to monitor the moving speed of the support table.

5. The dustproof testing device for electronic equipment according to claim 4, characterized in that: The displacement shell comprises a shell, a cover plate and a control cylinder. The cover plate is slidably connected to the shell and is located on the top of the shell. The control cylinder is fixed on the shell, and the output end of the control cylinder is fixedly connected to the cover plate.

6. The dustproof testing device for electronic equipment according to claim 5, characterized in that: The replacement shell also includes an air pressure sensor, a first controller, an air supply pump and an air outlet pipe. The baffle is provided with a plurality of air outlet holes. The air pressure sensor is arranged in the shell and the box. The first controller is connected to the air pressure sensor, the air supply pump is connected to the first controller, one end of the air outlet pipe is connected to the air supply pump, and the other end of the air outlet pipe is connected to the baffle.

7. The dustproof testing device for electronic equipment according to claim 6, characterized in that: The first controller includes a first air pressure detection unit, a second air pressure detection unit, a comparison unit and an air pump control unit, the first air pressure detection unit is used to detect a first air pressure value in the box body, the second air pressure detection unit is used to detect a second air pressure value in the shell body, the comparison unit is used to calculate the difference between the first air pressure value and the second air pressure value, and the air pump control unit is used to control the air pump control unit to control the operating power of the air supply pump based on the difference.

8. The dustproof testing device for electronic equipment according to claim 7, characterized in that: The replacement cavity further comprises a limiting structure, and the limiting structure is used to limit the baffle plate after the baffle plate is pushed to a preset position.

9. A method for testing the dust resistance of electronic equipment, using the device for testing the dust resistance of electronic equipment according to any one of claims 1 to 8, It is characterized in that include: Placing the product to be tested on the support table in the displacement cavity; The driving member is started to drive the support platform to move into the box body, and the baffle is reset to close the opening between the replacement shell and the box body; Start the air blowing structure to fill the box with dust airflow; After the dust airflow is stable, test the product to be tested; After the test is completed, the driving member drives the support platform to push open the baffle, so that the product to be tested after the test is completed enters the replacement cavity, and the opening is closed by the sealing plate on the support platform.

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