A high and low temperature resistant testing device for silica gel key

Abstract

The utility model discloses a silica gel button high and low temperature resistant testing arrangement, including the shell, the inner wall middle part of shell is equipped with the test board, the upside of test board is equipped with the button test groove, the bottom wall of button test groove is equipped with the button shaft of symmetrical distribution, still include temperature control subassembly and press subassembly, temperature control subassembly includes arc cover and low temperature air pipe, the inside of shell is equipped with arc cover, the inside of arc cover is equipped with heating assembly, arc cover is located the front side of button test groove, the left side wall of shell is equipped with low temperature air pipe, and low temperature air pipe is located the left side of button test groove, press subassembly sets up in the inside of shell, the front side of shell is equipped with singlechip, and the input of singlechip is electrically connected external power supply. The utility model can accurately simulate high and low temperature environment and highly restore real pressing operation, and the performance of silica gel button under different temperatures is detected comprehensively and accurately.

Description

Technical Field

[0001] This utility model relates to the field of silicone button technology, specifically a silicone button high and low temperature resistance testing device. Background Technology

[0002] In the field of modern electronic device manufacturing, silicone buttons are widely used in various electronic products, such as mobile phones, remote controls, and keyboards, due to their advantages such as good flexibility, comfortable touch, and low cost. With the increasing diversification of electronic product usage environments, from cold outdoor environments to hot indoor environments, and even some extreme climatic conditions, users have increasingly higher requirements for the performance of silicone buttons in different temperature environments. This makes high and low temperature testing of silicone buttons a key link in ensuring product quality and reliability.

[0003] Currently, there are various technologies and equipment for high and low temperature testing of silicone buttons. Some companies use ordinary high and low temperature test chambers, placing the silicone buttons directly inside. By setting the temperature of the test chamber, a high or low temperature environment is created. During high-temperature testing, the target temperature is set, and the test chamber begins to heat up, using internal heating elements to gradually raise the temperature of the air inside the chamber. Once the set temperature is reached, it is maintained at a constant temperature, and testers periodically observe whether the buttons show signs of deformation, discoloration, or other issues. During low-temperature testing, the target temperature is set, and the test chamber uses a cooling system to lower the temperature inside the chamber. After stabilization, the buttons are observed for problems such as brittleness or cracking. Some tests also rely on manual pressing to evaluate button performance. Testers manually press the buttons in high and low temperature environments, judging by their own feel whether the button's rebound is normal and whether the feel is comfortable. In addition, there are some relatively professional automated testing devices on the market that can perform button pressing operations at a certain frequency according to a preset program, and can record data such as the number of presses.

[0004] However, existing technologies have many shortcomings. Although ordinary high and low temperature test chambers can provide high and low temperature environments, they are difficult to accurately control the temperature of the test area. In actual use, the heating or cooling of different parts of the silicone buttons is not uniform. Manual pressing tests are greatly affected by subjective factors. Different testers have different pressing pressure, frequency, and pressing positions, which makes the test data lack accuracy and consistency and difficult to use as a reliable basis for quality evaluation. Although automated testing equipment can realize the automation of pressing, its functions are relatively simple and it is difficult to simulate button operation with different forces or simulate complex actual use environments, resulting in an incomplete performance evaluation of silicone buttons. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a silicone button high and low temperature resistance testing device that can accurately simulate high and low temperature environments and highly reproduce real pressing operations, comprehensively and accurately detect the performance of silicone buttons at different temperatures, and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a silicone button high and low temperature resistance testing device, including a housing, a microcontroller on the front side of the housing, the input terminal of the microcontroller being electrically connected to an external power supply; a test platform in the middle of the inner wall of the housing, a button test groove on the upper side of the test platform, and symmetrically distributed button shafts on the bottom wall of the button test groove; and also includes a temperature control component and a pressing component.

[0007] The temperature control component includes an arc-shaped cover and a low-temperature air duct. The arc-shaped cover is located inside the outer shell, and a heating component is located inside the arc-shaped cover. The arc-shaped cover is located in front of the button test slot. The low-temperature air duct is located on the left side wall of the outer shell and is located on the left side of the button test slot.

[0008] The pressing component is located inside the housing.

[0009] Furthermore, the temperature control component also includes a rotating frame, a blower, a blower head, and nozzles. The rotating frame is rotatably connected to the upper left side of the test platform. The arc-shaped cover is located between the upper left and right ends of the rotating frame. The heating component is an electric heating tube, and the electric heating tube is threaded between the left and right inner walls of the arc-shaped cover. A blower is installed on the left side of the outer shell. The blower's air outlet is fixedly connected to the left end of the low-temperature air duct. A blower head is provided at the right end of the low-temperature air duct, and evenly distributed nozzles are provided at the right end of the blower head. The diameter of the right end of each nozzle is twice the diameter of its left end. The input ends of the electric heating tube and the blower are both electrically connected to the output end of the microcontroller, which facilitates high and low temperature experiments on the silicone buttons.

[0010] Furthermore, an infrared temperature sensor is provided on the inner right side of the housing. The infrared temperature sensor is bidirectionally electrically connected to the microcontroller to monitor the temperature of the silicone button detection area.

[0011] Furthermore, the pressing assembly includes a movable chamber, a pressing port, a sliding column, a T-shaped pressing rod, and a pressing head. Symmetrically distributed slide rails are provided between the top wall of the housing and the test platform. A movable chamber is slidably connected between the two slide rails. A pressing port is provided on the lower side wall of the movable chamber. Symmetrically distributed sliding columns are provided on the bottom wall of the movable chamber. A T-shaped pressing rod is slidably connected to the middle of each sliding column. The lower end of each T-shaped pressing rod passes through the pressing port, and a pressing head is provided at the lower end of each T-shaped pressing rod. The pressing head is located above the button shaft. An electric cylinder is installed on the top wall of the housing. The telescopic end of the electric cylinder is fixedly connected to the upper side of the movable chamber. The input end of the electric cylinder is electrically connected to the output end of the microcontroller, facilitating the pressing test of the silicone button.

[0012] Furthermore, the pressing assembly also includes a groove, a rotating shaft, a turntable, and a push pin. The left and right ends of the inner wall of the rear side of the movable compartment are rotatably connected to the turntable via the rotating shaft. The lower end of the front side of the turntable is provided with a push pin. The upper end of the T-shaped pressing rod is provided with a groove. The front end of the push pin is located inside the adjacent groove on the front side, which allows the T-shaped pressing rod to move up and down continuously.

[0013] Furthermore, each of the outer arc surfaces of the rotating shaft is provided with a driven gear, and the rear inner wall of the movable compartment is rotatably connected to a gear via the rotating shaft. The driven gears are all meshed with the gears. A motor is installed on the rear side of the movable compartment. The output shaft of the motor is fixedly connected to the center of the rear end face of the rotating shaft. The input end of the motor is electrically connected to the output end of the microcontroller for stable driving.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By combining an electric heating element with an arc-shaped cover, the reflective effect of the arc-shaped cover can concentrate heat in the test area, rapidly increasing the temperature. The arc-shaped cover made of high-purity aluminum foil improves heat utilization. The design of the low-temperature air duct, blower, air nozzle, and spray nozzle can evenly disperse cold air and accelerate cooling. Combined with real-time monitoring by an infrared temperature sensor and precise control by a microcontroller, the test area can be stably maintained at the preset temperature, accurately simulating the use of silicone buttons in different high and low temperature environments, ensuring accurate and reliable test results.

[0016] 2. Through the coordinated work of the motor, gears, driven gears, turntable and shift pin, the pressing head can achieve different pressing forces when pressing the silicone button, more realistically restoring the user's actual operation scenario, and comprehensively testing the pressing performance of the silicone button at different temperatures. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention from a front sectional view;

[0019] Figure 3 This is a schematic diagram of the rotating frame of this utility model after rotation;

[0020] Figure 4 This is a structural diagram of the present invention at a 45-degree angle to the left.

[0021] Figure 5 This is a partial structural diagram of the blower head of this utility model;

[0022] Figure 6This is a partial bottom view of the rotating frame of this utility model.

[0023] Figure 7 This is a schematic diagram of the front plane of the present invention;

[0024] Figure 8 This is a schematic diagram of the front cross-section of the mobile compartment of this utility model;

[0025] Figure 9 This is a schematic diagram of the rear structure of the mobile compartment of this utility model.

[0026] In the diagram: 1. Outer shell; 2. Temperature control component; 21. Rotating frame; 22. Arc-shaped cover; 23. Blower; 24. Low temperature air duct; 25. Air blower head; 26. Nozzle; 3. Pressing component; 31. Moving chamber; 32. Pressing port; 33. Sliding column; 34. T-shaped pressing rod; 35. Pressing head; 36. Dial slot; 37. Rotating shaft; 38. Turntable; 39. Dial column; 4. Driven gear; 5. Rotating shaft; 6. Gear; 7. Motor; 8. Slide rail; 9. Electric cylinder; 10. Button test slot; 11. Button shaft; 12. Infrared temperature sensor; 13. Microcontroller; 14. Electric heating element. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-9 This embodiment provides a technical solution: a silicone button high and low temperature resistance testing device, including a housing 1. The front side wall of the housing 1 is hinged to a door for opening, allowing the worker to place the silicone button to be tested inside the housing 1. A microcontroller 13 is provided on the front side of the housing 1, and the input terminal of the microcontroller 13 is electrically connected to an external power supply. An infrared temperature sensor 12 is provided on the right inner wall of the housing 1, and the infrared temperature sensor 12 is bidirectionally electrically connected to the microcontroller 13. A test platform is provided in the middle of the inner wall of the housing 1, and a button test slot 10 is provided on the upper side of the test platform. The bottom wall of the button test slot 10 is provided with symmetrically distributed button shafts 11.

[0029] The system also includes a temperature control component 2; the temperature control component 2 includes an arc-shaped cover 22 and a low-temperature air duct 24. The arc-shaped cover 22 is located inside the outer shell 1, and a heating component is located inside the arc-shaped cover 22. The arc-shaped cover 22 is located on the front side of the button test slot 10. The low-temperature air duct 24 is located on the left side of the outer shell 1, and the low-temperature air duct 24 is located on the left side of the button test slot 10. The temperature control component 2 also includes a rotating frame 21, a blower 23, a blower head 25, and a nozzle 26. The rotating frame 21 is rotatably connected to the upper left side of the test platform (the lower outer arc surface of the right end of the rotating frame 21 has a connecting piece, the left end of the connecting piece has a connecting hole, and the right end of the test platform has a threaded hole, so that the worker can insert a bolt into the connecting hole and thread it into the threaded hole, thus ensuring the rotating frame The arc-shaped cover 22 is located between the upper left and right ends of the rotating frame 21. The heating component is an electric heating tube 14. The electric heating tube 14 is threaded between the left and right inner walls of the arc-shaped cover 22 (the arc-shaped cover 22 is a high-purity aluminum foil arc-shaped cover). A blower 23 is installed on the left side of the outer shell 1. The air outlet of the blower 23 is fixedly connected to the left end of the low-temperature air duct 24. The right end of the low-temperature air duct 24 is provided with a blower head 25. The right end of the blower head 25 is provided with evenly distributed nozzles 26. The diameter of the right end of each nozzle 26 is twice the diameter of its left end. The input ends of the electric heating tube 14 and the blower 23 are both electrically connected to the output end of the microcontroller 13.

[0030] The system also includes a pressing assembly 3. The pressing assembly 3 is located inside the outer casing 1 and includes a movable chamber 31, a pressing port 32, sliding columns 33, T-shaped pressing rods 34, and pressing heads 35. Symmetrically distributed slide rails 8 are provided between the top wall of the outer casing 1 and the test platform. A movable chamber 31 is slidably connected between two slide rails 8. A pressing port 32 is provided on the lower side wall of the movable chamber 31. Symmetrically distributed sliding columns 33 are provided on the bottom wall of the movable chamber 31. A T-shaped pressing rod 34 is slidably connected to the middle of each sliding column 33. The lower end of each T-shaped pressing rod 34 passes through the pressing port 32, and a pressing head 35 is provided at the lower end of each T-shaped pressing rod 34. The pressing heads 35 are located above the button shaft 11. An electric cylinder 9 is installed on the top wall of the outer casing 1. The telescopic end of the electric cylinder 9 is fixedly connected to the upper side of the movable chamber 31. The input end of cylinder 9 is electrically connected to the output end of microcontroller 13; the pressing assembly 3 also includes a slot 36, a rotating shaft 37, a turntable 38 and a pin 39. The left and right ends of the rear inner wall of the movable chamber 31 are rotatably connected to the turntable 38 through the rotating shaft 37. The lower end of the front side of the turntable 38 is provided with a pin 39. The upper end of the T-shaped pressing rod 34 is provided with a slot 36. The front end of the pin 39 is located inside the adjacent slot 36 on the front side. The middle of the outer arc surface of the rotating shaft 37 is provided with a driven gear 4. The rear inner wall of the movable chamber 31 is rotatably connected to a gear 6 through a rotating shaft 5. The driven gear 4 is meshed with the gear 6. The rear side of the movable chamber 31 is equipped with a motor 7. The output shaft of the motor 7 is fixedly connected to the center of the rear end face of the rotating shaft 5. The input end of the motor 7 is electrically connected to the output end of microcontroller 13.

[0031] The working principle of this utility model is as follows:

[0032] First, the worker opens the retrieval door and inserts the silicone button to be tested into the upper end of the two button shafts 11. Then, the worker rotates the rotating frame 21 and inserts the bolt into the connecting hole and threadedly connects it with the threaded hole. This ensures the position of the rotating frame 21. Then, the worker closes the retrieval door and the microcontroller 13 controls the operation of the electric heating tube 14 and the blower 23.

[0033] When the temperature needs to be increased, the microcontroller 13 sends a command to the electric heating tube 14, which is then powered on and heats up. The heat is reflected and guided by the arc-shaped cover 22 and concentrated on the button test slot 10 area to achieve rapid heating. Since the arc-shaped cover 22 is made of high-purity aluminum foil, its good reflective performance can improve the heat utilization rate.

[0034] When a temperature reduction is required, the microcontroller 13 controls the blower 23 to start. Cold air from the outside enters through the low-temperature air duct 24 and is blown onto the button test slot 10 through the blower head 25 and nozzle 26. The diameter of the right end of the nozzle 26 is twice that of the left end. This design allows the blown cold air to be evenly dispersed, accelerating the cooling process. At the same time, the infrared temperature sensor 12 monitors the temperature of the test area in real time and feeds the temperature data back to the microcontroller 13. Based on the feedback data, the microcontroller 13 precisely adjusts the heating power of the electric heating tube 14 and the air speed of the blower 23 to ensure that the test area reaches and maintains the preset temperature value, achieving precise temperature control and facilitating high and low temperature testing of silicone buttons.

[0035] After the temperature reaches the preset value and stabilizes, the microcontroller 13 controls the electric cylinder 9 to work. The telescopic end of the electric cylinder 9 drives the moving chamber 31 to move up and down along the slide rail 8. When the moving chamber 31 moves downward, the pressing head 35 gradually approaches and presses the silicone button, simulating the actual use process of the button.

[0036] During the movement of the mobile compartment 31, the motor 7 starts synchronously. The output shaft of the motor 7 drives the rotating shaft 5 to rotate, and the gear 6 on the rotating shaft 5 rotates accordingly. The gear 6 meshes with the driven gear 4, driving the turntable 38 to rotate around the rotating shaft 37. During the rotation of the turntable 38, the shift pin 39 is forced to slide up and down along the slide pin 33 through the shift groove 36, so that the pressing head 35 presses the silicone button, more realistically simulating the user's button operation under different force (when the pressing head 35 presses the silicone button, the button transmits the force to the shaft core of the button shaft 11, and the shaft core moves downward against the resistance of the spring. When the pressing head 35 returns to the silicone button, the elastic force of the spring makes the shaft core return to the silicone button). The distance between the pressing head 35 and the silicone button can be adjusted by changing the height of the mobile compartment 31 inside the outer shell 1. When the pressing head 35 is far away from the silicone button, the pressing force on the silicone button is smaller when the pressing head 35 moves up and down continuously. The pressing test of the silicone button is carried out at the test temperature.

[0037] It is worth noting that the standard Hitachi blower is more suitable for the blower 23 disclosed in the above embodiments, the motor 7 can be a geared motor of model 37GB520, the electric cylinder 9 can be a MY1B series, the infrared temperature sensor 12 can be model MLX90614, the microcontroller 13 can be model AT89S51, and the electric heating tube 14 can be a single-head electric heating tube, such as the common model M3. The microcontroller 13 controls the operation of the blower 23, motor 7, electric cylinder 9, infrared temperature sensor 12 and electric heating tube 14 using methods commonly used in the prior art.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A silicone button high and low temperature resistance testing device, comprising a housing (1), wherein a microcontroller (13) is provided on the front side of the housing (1), and the input terminal of the microcontroller (13) is electrically connected to an external power supply; a test platform is provided in the middle of the inner wall of the housing (1), and a button test groove (10) is provided on the upper side of the test platform, and button shafts (11) are symmetrically distributed on the bottom wall of the button test groove (10), characterized in that: It also includes a temperature control component (2) and a pressing component (3); The temperature control component (2) includes an arc-shaped cover (22) and a low-temperature air duct (24). The arc-shaped cover (22) is provided inside the outer shell (1). The arc-shaped cover (22) is provided inside the arc-shaped cover (22). The arc-shaped cover (22) is located in front of the button test slot (10). The low-temperature air duct (24) is provided on the left side wall of the outer shell (1). The low-temperature air duct (24) is located on the left side of the button test slot (10). The pressing component (3) is disposed inside the housing (1).

2. The silicone button high and low temperature resistance testing device according to claim 1, characterized in that: The temperature control component (2) also includes a rotating frame (21), a blower (23), a blower head (25), and a nozzle (26). The rotating frame (21) is rotatably connected to the left end of the upper side of the test bench. The arc-shaped cover (22) is located between the left and right ends of the upper side of the rotating frame (21). The heating component is an electric heating tube (14). The electric heating tube (14) is threaded between the left and right inner walls of the arc-shaped cover (22). The blower (23) is installed on the left side of the outer shell (1). The blower (23) is fixedly connected to the left end of the low-temperature air duct (24). The right end of the low-temperature air duct (24) is provided with a blower head (25). The right end of the blower head (25) is provided with evenly distributed nozzles (26). The diameter of the right end of each nozzle (26) is twice the diameter of its left end. The input ends of the electric heating tube (14) and the blower (23) are both electrically connected to the output end of the microcontroller (13).

3. The high and low temperature resistance testing device for silicone buttons according to claim 1, characterized in that: An infrared temperature sensor (12) is provided on the inner right side of the outer casing (1), and the infrared temperature sensor (12) is bidirectionally electrically connected to the microcontroller (13).

4. The high and low temperature resistance testing device for silicone buttons according to claim 1, characterized in that: The pressing assembly (3) includes a movable chamber (31), a pressing port (32), a sliding column (33), a T-shaped pressing rod (34), and a pressing head (35). The top wall of the outer shell (1) is provided with symmetrically distributed slide rails (8) between it and the test platform. The movable chamber (31) is slidably connected between the two slide rails (8). The lower side wall of the movable chamber (31) is provided with a pressing port (32). The bottom wall of the movable chamber (31) is provided with symmetrically distributed sliding columns (33). T-shaped pressing rods (34) are slidably connected to the middle of each of the components. The lower ends of the T-shaped pressing rods (34) pass through the pressing port (32). The lower ends of the T-shaped pressing rods (34) are provided with pressing heads (35). The pressing heads (35) are located on the upper side of the button shaft (11). An electric cylinder (9) is installed on the top wall of the outer shell (1). The telescopic end of the electric cylinder (9) is fixedly connected to the upper side of the moving compartment (31). The input end of the electric cylinder (9) is electrically connected to the output end of the microcontroller (13).

5. The silicone button high and low temperature resistance testing device according to claim 4, characterized in that: The pressing assembly (3) also includes a groove (36), a rotating shaft (37), a turntable (38), and a pusher (39). The left and right ends of the rear inner wall of the movable compartment (31) are rotatably connected to the turntable (38) through the rotating shaft (37). The lower end of the front side of the turntable (38) is provided with a pusher (39). The upper end of the T-shaped pressing rod (34) is provided with a groove (36). The front end of the pusher (39) is located inside the adjacent groove (36) on the front side.

6. The silicone button high and low temperature resistance testing device according to claim 5, characterized in that: The outer arc surface of the rotating shaft (37) is provided with driven gears (4). The rear inner wall of the moving compartment (31) is rotatably connected to gears (6) through the rotating shaft (5). The driven gears (4) are meshed with the gears (6). The rear side of the moving compartment (31) is equipped with a motor (7). The output shaft of the motor (7) is fixedly connected to the center of the rear end face of the rotating shaft (5). The input end of the motor (7) is electrically connected to the output end of the microcontroller (13).

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