Testing device for electrician and electronics

Abstract

The utility model relates to the technical field of electronic testing equipment, in particular to a testing device for electricians and electronics, which is characterized in that a placing plate is arranged at the center of the bottom of a testing box, an annular shunting box is rotatably arranged between the outer ring of the placing plate and the inner ring of the testing box, a plurality of shunting pipes are arranged at the upper end of the annular shunting box, and a plurality of nozzles are arranged on the inner sides of the shunting pipes; a gear ring is arranged at the lower end of the annular flow dividing box, the annular flow dividing box is driven by the motor to rotate, and sand and dust are evenly distributed in a test area in an omnibearing mode in cooperation with the sprayers with different installation angles. Compared with a traditional testing device with a fixed air outlet, the testing device can simulate the condition of an electronic workpiece in an actual dust environment more truly, effectively avoids dust-proof performance evaluation deviation caused by non-uniform dust distribution, and improves the accuracy of a testing result.

Description

Technical Field

[0001] This utility model relates to the field of electronic testing equipment technology, and in particular to a testing device for electrical and electronic applications. Background Technology

[0002] With the continuous development of the automotive industry, the demand for automotive electronic equipment is also increasing. In order to ensure the reliability of electronic equipment in automobiles and improve the driving experience, it is often necessary to conduct various tests on automotive electronic equipment, including sand and dust tests. The equipment is placed in a sand and dust test chamber filled with sand and dust of a specified concentration and particle size to simulate sand and dust environments such as deserts, and to test the equipment's dustproof ability to ensure that sand and dust will not enter the equipment and affect its performance and reliability.

[0003] Existing dust testing equipment has a fixed air outlet position during use. This fixed air outlet results in uneven distribution of the blown dust in the testing area, leading to deviations in the evaluation of the dustproof performance of the electronic component. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a testing device for electrical and electronic applications.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrical and electronic testing device, comprising a base, a base plate, and a testing box. The base is fixed above the base plate, and the testing box is fixed above the base. A placement plate is provided at the center of the bottom of the testing box. An annular flow divider is rotatably arranged between the outer ring of the placement plate and the inner ring of the testing box. Multiple flow dividers are provided at the upper end of the annular flow divider, and multiple nozzles are provided on the inner side of the flow dividers. A gear ring is provided at the lower end of the annular flow divider. A motor is provided on one side of the testing box, and a gear that meshes with the gear ring is provided at the output end of the motor.

[0008] A vertical pipe is provided above the base plate, and a transfer pipe is rotatably installed at the top of the vertical pipe. Both ends of the transfer pipe are connected to an annular diversion box. The vertical pipe, transfer pipe, annular diversion box, diversion pipe and nozzle are connected in sequence. The top of the vertical pipe is fixed to the bottom of the placement plate. Support rods for connecting the base are provided on both sides of the vertical pipe. A fan is provided at the top of the base plate. The air outlet of the fan is provided with an air outlet pipe inserted into the vertical pipe and rotatably connected to the vertical pipe.

[0009] Furthermore, the present invention includes the following improvements: the top of the vertical pipe is provided with a plurality of air outlet holes communicating with the adapter pipe, and the inner ring of the adapter pipe is provided with a plurality of air inlet holes communicating with the air outlet holes.

[0010] To facilitate observation of the conditions inside the test chamber, the present invention includes an observation window provided in the middle part of the test chamber.

[0011] To prevent dust from escaping to the outside of the test chamber, the present invention includes the following improvements: a top plate is provided on the top of the test chamber, an exhaust pipe is provided on the top plate, a dustproof net is provided on the top of the exhaust pipe, an annular frame is provided on the outer ring of the dustproof net, the annular frame is fastened to the top of the exhaust pipe and threadedly connected to the exhaust pipe, multiple positioning holes are provided at the upper end of the test chamber, and multiple positioning rods penetrating the positioning holes are provided at the lower end of the top plate.

[0012] Furthermore, an improvement of this utility model is that the multiple positioning holes are of the same size, and the multiple positioning rods are of the same size.

[0013] Furthermore, an improvement of this utility model is that a sealing ring is provided at the lower end of the top plate.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a testing device for electrical and electronic applications, which has the following advantages:

[0016] The annular distribution box is driven by a motor to rotate, and nozzles with different installation angles are used to distribute sand and dust evenly in all directions within the test area. Compared with traditional test devices with fixed air outlets, this method can more realistically simulate the conditions of electronic components in actual sand and dust environments, effectively avoiding deviations in dustproof performance evaluation caused by uneven sand and dust distribution, and improving the accuracy of test results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 3 This utility model Figure 1 The main view;

[0021] Figure 4 This is a schematic diagram of the internal structure of the test chamber in this utility model;

[0022] Figure 5 This is a schematic diagram of the air outlet in this utility model;

[0023] In the diagram: 1. Base; 2. Base plate; 3. Test box; 4. Observation window; 5. Top plate; 6. Positioning hole; 7. Positioning rod; 8. Sealing ring; 9. Exhaust pipe; 10. Ring frame; 11. Dustproof net; 12. Ring diverter box; 13. Placement plate; 14. Diverter pipe; 15. Nozzle; 16. Gear ring; 17. Gear; 18. Motor; 19. Vertical pipe; 20. Fan; 21. Air outlet pipe; 22. Support rod; 23. Adapter pipe. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Please see Figures 1-5This utility model discloses an electrical and electronic testing device, comprising a base 1, a base plate 2, and a testing chamber 3. The base 1 is fixed above the base plate 2, and the testing chamber 3 is fixed to the upper end of the base 1. A placement plate 13 is provided at the center of the bottom of the testing chamber 3. An annular flow divider 12 is rotatably arranged between the outer ring of the placement plate 13 and the inner ring of the testing chamber 3. The upper end of the annular flow divider 12 is provided with multiple flow divider pipes 14, and the inner side of the flow divider pipes 14 is provided with multiple nozzles 15. The lower end of the annular flow divider 12 is provided with a gear ring 16. A motor 18 is provided on one side of the testing chamber 3, and the output end of the motor 18 is provided with a gear 17 that meshes with the gear ring 16.

[0029] A vertical pipe 19 is provided above the base plate 2. A transfer pipe 23 is rotatably installed on the top of the vertical pipe 19. The two ends of the transfer pipe 23 are connected to an annular diversion box 12. The vertical pipe 19, the transfer pipe 23, the annular diversion box 12, the diversion pipe 14, and the nozzle 15 are connected in sequence. The top end of the vertical pipe 19 is fixed to the lower end of the placement plate 13. Support rods 22 for connecting the base 1 are provided on both sides of the vertical pipe 19. A fan 20 is provided at the upper end of the base plate 2. The air outlet end of the fan 20 is provided with an air outlet pipe 21 that is inserted into the vertical pipe 19 and rotatably connected to the vertical pipe 19.

[0030] The top of the vertical pipe 19 is provided with multiple air outlets that communicate with the adapter pipe 23, and the inner ring of the adapter pipe 23 is provided with multiple air inlet holes that communicate with the air outlets.

[0031] This electrical and electronic testing device mainly consists of multiple components such as base 1, base plate 2, test box 3, annular shunt box 12, motor 18, and fan 20, which work together to achieve dust testing of automotive electronic components.

[0032] The test chamber 3 has a top plate 5 on top, and the upper end of the test chamber 3 has multiple positioning holes 6. The lower end of the top plate 5 has multiple positioning rods 7 that pass through the positioning holes 6. The lower end of the top plate 5 has a sealing ring 8. The multiple positioning holes 6 are the same size, and the multiple positioning rods 7 are the same size.

[0033] After the device is installed, open the top plate 5 and place the automotive electronic component to be tested on the placement plate 13 at the bottom center of the test chamber 3. After placement, add sand and dust into the test chamber 3, and then fasten the top plate 5 to the top of the test chamber 3. The top plate 5 is positioned by inserting the positioning rod 7 at the lower end into the positioning hole 6 at the upper end of the test chamber 3, and the sealing ring 8 at the lower end of the top plate 5 can effectively prevent sand and dust leakage.

[0034] When the fan 20 is started, the air generated by the fan 20 enters the vertical pipe 19 through the outlet pipe 21. The top of the vertical pipe 19 has multiple air outlets, which are connected to the air inlet of the inner ring of the transfer pipe 23, allowing air to enter the transfer pipe 23. Both ends of the transfer pipe 23 are connected to annular distribution boxes 12, and the air flows through the transfer pipe 23 before entering the annular distribution boxes 12. Multiple distribution pipes 14 are installed at the upper end of the annular distribution box 12, and multiple nozzles 15 inside the distribution pipes 14 spray out the air and the carried sand and dust.

[0035] The multiple nozzles 15 are installed at different angles. After the motor 18 is started, the gear 17 at the output end of the motor 18 meshes with the gear ring 16 at the lower end of the annular flow divider box 12, driving the annular flow divider box 12 to rotate between the outer ring of the placement plate 13 and the inner ring of the test box 3. This allows the nozzles 15 to spray sand and dust from different angles into the test area during rotation, thereby making the sand and dust more evenly distributed in the test area.

[0036] The test chamber 3 is provided with an observation window 4 in the middle part.

[0037] The top plate 5 is provided with an exhaust pipe 9, the top of the exhaust pipe 9 is provided with a dustproof net 11, the outer ring of the dustproof net 11 is provided with a ring frame 10, the ring frame 10 is fastened to the top of the exhaust pipe 9 and is threadedly connected to the exhaust pipe 9.

[0038] During the test, the tester can observe the situation inside the test chamber in real time through the observation window 4 in the middle part of the test chamber 3. The exhaust gas generated during the test is discharged through the exhaust pipe 9 on the top plate 5. The dustproof net 11 on the top of the exhaust pipe 9 can prevent sand and dust from being discharged outside the test chamber 3 with the exhaust gas. The dustproof net 11 is connected to the top of the exhaust pipe 9 by the outer ring frame 10, which is convenient for disassembly and cleaning.

[0039] The dustproof net 11 is threadedly connected to the exhaust pipe 9 via the ring frame 10, making it easy to disassemble. When the dustproof net 11 accumulates a lot of sand and dust, affecting the ventilation effect, it can be easily disassembled for cleaning or replacement, ensuring the normal operation of the testing device.

[0040] Base 1: Made of carbon steel, with dimensions customized according to the size of test chamber 3 to ensure sufficient strength and stability to support test chamber 3 and its internal equipment.

[0041] Base plate 2: Made of stainless steel, slightly larger than base 1, to prevent rust and to stably support base 1 and bear the weight of the entire device.

[0042] Test chamber 3: The main body can be made of acrylic sheet, which has good transparency and facilitates observation of the test results. The observation window 4 area can be made of high-strength, high-transparency tempered glass.

[0043] Top plate 5: The material is the same as the main body of test box 3, which is acrylic sheet.

[0044] Sealing ring 8: Made of silicone rubber, it has good elasticity and sealing performance, effectively preventing sand and dust leakage.

[0045] Ring frame 10: Made of ABS plastic, its inner diameter matches the outer diameter of the exhaust pipe 9, and its outer diameter is determined according to the size of the dustproof net 11. It is connected to the exhaust pipe 9 by threads to fix the dustproof net 11.

[0046] Dustproof Net 11: Made of stainless steel wire mesh with a mesh count between 200 and 300, it can effectively block sand and dust while ensuring ventilation.

[0047] Annular Diverter Box 12: Made of aluminum alloy, which ensures strength while reducing weight, making it easier for motor 18 to drive its rotation.

[0048] Placement board 13: Made of bakelite board, which has good insulation properties to prevent short circuits and other problems of electronic components during testing, and can stably place electronic components.

[0049] Diverter pipe 14: An aluminum alloy pipe is selected. The length and distribution position are determined according to the size of the test box 3 and the number of nozzles 15 to ensure that wind and dust are evenly distributed to each nozzle 15.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A testing device for electrical and electronic applications, characterized in that: It includes a base (1), a base plate (2) and a test box (3), wherein the base (1) is fixed above the base plate (2) and the test box (3) is fixed at the upper end of the base (1); The test box (3) has a placement plate (13) at the center of its bottom. An annular flow divider (12) is rotatably arranged between the outer ring of the placement plate (13) and the inner ring of the test box (3). The upper end of the annular flow divider (12) is provided with multiple flow divider pipes (14). The inner side of the flow divider pipes (14) is provided with multiple nozzles (15). The lower end of the annular flow divider (12) is provided with a gear ring (16). A motor (18) is provided on one side of the test box (3). The output end of the motor (18) is provided with a gear (17) that meshes with the gear ring (16). A vertical pipe (19) is provided above the base plate (2). A transfer pipe (23) is rotatably provided at the top of the vertical pipe (19). Both ends of the transfer pipe (23) are connected to an annular diversion box (12). The vertical pipe (19), transfer pipe (23), annular diversion box (12), diversion pipe (14), and nozzle (15) are connected in sequence. The top end of the vertical pipe (19) is fixed to the lower end of the placement plate (13). Support rods (22) for connecting the base (1) are provided on both sides of the vertical pipe (19). A fan (20) is provided at the upper end of the base plate (2). The air outlet end of the fan (20) is provided with an air outlet pipe (21) that is inserted into the vertical pipe (19) and rotatably connected to the vertical pipe (19).

2. The electrical and electronic testing device according to claim 1, characterized in that: The top of the vertical pipe (19) is provided with multiple air outlets that communicate with the adapter pipe (23), and the inner ring of the adapter pipe (23) is provided with multiple air inlet holes that communicate with the air outlets.

3. The electrical and electronic testing device according to claim 2, characterized in that: The test box (3) is provided with an observation window (4) in the middle part.

4. The electrical and electronic testing device according to claim 3, characterized in that: The test box (3) is provided with a top plate (5), and an exhaust pipe (9) is provided on the top plate (5). A dustproof net (11) is provided on the top of the exhaust pipe (9).

5. The electrical and electronic testing device according to claim 4, characterized in that: The outer ring of the dustproof net (11) is provided with a ring frame (10), which is fastened to the top of the exhaust pipe (9) and threadedly connected to the exhaust pipe (9).

6. The electrical and electronic testing device according to claim 5, characterized in that: The upper end of the test box (3) is provided with multiple positioning holes (6), and the lower end of the top plate (5) is provided with multiple positioning rods (7) that pass through the positioning holes (6).

7. The electrical and electronic testing device according to claim 6, characterized in that: The multiple positioning holes (6) are of the same size, and the multiple positioning rods (7) are of the same size.

8. The electrical and electronic testing device according to claim 7, characterized in that: The lower end of the top plate (5) is provided with a sealing ring (8).

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