Key test module, mobile phone key test mechanism and mobile phone test box
By using high-precision push rod motor and bionic press head in the mobile phone key test module, combined with sound insulation and signal shielding technology, the problems of high noise, low accuracy and high cost in the existing technology are solved, and more efficient mobile phone keys are achieved test.
Patent Information
- Application Number
- CN202421083294.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-17
AI Technical Summary
There are problems of high noise, low test accuracy and high cost in the touch test of existing mobile phones.
A button testing module including a high-precision small push rod motor, sound insulation box, pressure sensor and bionic press head is designed, and a shielding box combining a transmitter and a data acquisition card is used to accurately control the encoder and photoinductor for precise control and Noise isolation reduces the noise floor impact.
It significantly reduces test noise, improves test accuracy and anti-interference, reduces costs, and achieves more stable test results.
Smart Images
Figure CN222356420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of acoustic vibration testing, and in particular to a key test module, a mobile phone key test mechanism and a mobile phone test box. Background Art
[0002] Currently, there are not many manufacturers in China that conduct touch testing of mobile phone buttons. Mainly, a few leading companies have just started to do this kind of testing. Some of the tests are manual, and some of them are expensive motor pressing module tests such as voice coil motors.
[0003] Manual testing is more subjective and has no quantitative testing standards. Using expensive motors such as voice coil motors to press the module results in high background noise during testing, limited test accuracy, and relatively high testing costs. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and to provide a key test module, a mobile phone key test mechanism and a mobile phone test box which can solve the problems of high noise, low test accuracy and high cost of a key pressing module in a mobile phone key touch test.
[0005] The technical solution adopted by the utility model is: a button test module includes a sound insulation box, a push rod motor, a push rod, a pressure sensor and a bionic pressing head. The push rod motor adopts a high-precision small push rod motor, and the push rod motor is installed inside the sound insulation box. One end of the push rod is connected to the push rod motor, and the other end of the push rod passes through the sound insulation box and is connected to one end of the pressure sensor, and the bionic pressing head is connected to the other end of the pressure sensor.
[0006] Furthermore, an encoder is installed at the tail of the push rod motor.
[0007] Furthermore, a shielding box is provided at one end of the soundproof box, a transmitter and a data acquisition card are installed inside the shielding box, and the transmitter is electrically connected to the data acquisition card and the pressure sensor.
[0008] Furthermore, the button test module also includes a controller, and the controller is electrically connected to the data acquisition card, the push rod motor and the encoder.
[0009] Furthermore, a photoelectric sensing sheet is installed on the push rod portion passing through the sound insulation box, a photoelectric sensor compatible with the photoelectric sensing sheet is installed on the outside of the sound insulation box, and the photoelectric sensor is electrically connected to the controller.
[0010] Furthermore, a motor mounting bracket is installed in the sound insulation box, and the push rod motor is fixed on the motor mounting bracket; the button test module also includes a first fixed bracket and a second fixed bracket, the sound insulation box is installed on the first fixed bracket, the sound insulation box is provided with a through hole adapted to the push rod, and a sealing member is provided between the through hole and the push rod to ensure the sealing of the sound insulation box, a wire heat dissipation hole is added to the bottom of the rear end of the sound insulation box, and the shielding box is installed on the second fixed bracket.
[0011] Furthermore, a mobile phone button testing mechanism includes a test carrier assembly and the button testing module arranged on one side or both sides of the test carrier assembly, the test carrier assembly is used to place the mobile phone product, and the buttons on the side end of the mobile phone product are on the same horizontal plane as the bionic pressing head.
[0012] Furthermore, the test carrier assembly includes a carrier plate, and clamping blocks are arranged around the carrier plate, and the mobile phone product is fixed to the carrier plate through the clamping blocks.
[0013] Furthermore, the mobile phone button testing mechanism also includes a screw motor, a transmission screw, a screw mounting seat, a screw sliding block, two slide rails and two sliders. The two ends of the transmission screw are respectively connected to the screw motor and the screw mounting seat, and the two slide rails are respectively located on both sides of the transmission screw. The screw sliding block is adapted to be installed on the transmission screw and is connected to the bottom of the carrier plate. The sliders are respectively installed on both sides of the lower end of the carrier plate. The sliders are adapted to be installed on the slide rails, and the screw motor is electrically connected to the controller.
[0014] Furthermore, a mobile phone test box includes a test shielding box, a workbench and an industrial computer are arranged in the test shielding box, the mobile phone key test mechanism is arranged on the workbench, and the industrial computer is electrically connected to the data acquisition card and the controller.
[0015] The beneficial effects of the utility model are: 1. A push rod motor is used instead of a traditional voice coil motor to reduce the test cost; 2. The overall structural operation noise of the push rod motor and the button test module isolated by the sound insulation box is greatly reduced, which significantly reduces the influence of the background noise on the test result; 3. The bionic pressing head and the pressure sensor are directly fixed on the front end of the push rod motor, and the pressure feedback is more direct, thereby improving the test accuracy; 4. The transmitter and the data acquisition card are enclosed in the same shielding box, and the data is converted inside before being transmitted to the industrial computer, which reduces the interference of other external signals, and the test is stable and has strong anti-interference ability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural diagram of a mobile phone keypad testing mechanism;
[0017] Figure 2 It is a perspective structural diagram of the key test module;
[0018] Figure 3 It is a simple schematic diagram of data acquisition control logic;
[0019] Figure 4 This is a schematic diagram of the installation structure at the sound insulation box;
[0020] Figure 5 This is a top view of the soundproof box;
[0021] Figure 6 yes Figure 5 Cross-sectional view of the AA portion. DETAILED DESCRIPTION
[0022] like Figure 1-Figure 6 As shown, in this embodiment, the utility model includes a button test module, a mobile phone button test mechanism and a mobile phone test box, the button test module includes a sound insulation box 1, a push rod motor 2, a push rod 3, a pressure sensor 4 and a bionic pressing head 5, the push rod motor 2 adopts a high-precision small push rod motor, the push rod motor 2 is installed inside the sound insulation box 1, one end of the push rod 3 is connected to the push rod motor 2, the other end of the push rod 3 passes through the sound insulation box 1 and is connected to one end of the pressure sensor 4, the bionic pressing head 5 is connected to the other end of the pressure sensor 4, and an encoder 6 is installed at the tail of the push rod motor 2.
[0023] In this design, a high-precision small push rod motor is used, so that the linear motion components such as the push rod 3 are integrated in the push rod motor 2, and an encoder 6 is installed at the tail of the push rod motor 2 to detect the actual operating status of the push rod motor 2, so as to realize the semi-closed loop control of the button test module; and a pressure sensor 4 and a bionic pressing head 5 are installed at the front end of the push rod motor 2, which are small in size and light in load weight, thereby reducing the measurement error and improving the pressure measurement accuracy.
[0024] In this embodiment, a shielding box 7 is provided at one end of the soundproof box 1, and a transmitter 8 and a data acquisition card 9 are installed inside the shielding box 7, and the transmitter 8 is electrically connected to the data acquisition card 9 and the pressure sensor 4.
[0025] In this design, pressure feedback adopts the pressure sensor 4-transmitter 8-data acquisition card 9-PC series connection method, and adds a signal shielding device, which significantly improves the response speed of the entire system.
[0026] In this embodiment, the button test module further includes a controller 10 , and the controller 10 is electrically connected to the data acquisition card 9 , the push rod motor 2 , and the encoder 6 .
[0027] In this embodiment, a photoelectric sensing sheet 11 is installed on the part of the push rod 3 that passes through the sound insulation box 1, and a photoelectric sensor 12 that is compatible with the photoelectric sensing sheet 11 is installed on the outside of the sound insulation box 1. The photoelectric sensor 12 is electrically connected to the controller 10. This design can detect the pushing and resetting status of the push rod 3.
[0028] In this embodiment, a motor mounting bracket 13 is installed in the sound insulation box 1, and the push rod motor 2 is fixed on the motor mounting bracket 13; the button test module also includes a first fixed bracket 14 and a second fixed bracket 15, the sound insulation box 1 is installed on the first fixed bracket 14, and the sound insulation box 1 is provided with a through hole adapted to the push rod 3, and a seal is provided between the through hole and the push rod 3, and the seal can be a sealing rubber or a sealing ring to ensure the sealing of the sound insulation box 1, and a wire heat dissipation hole is added at the bottom of the rear end of the sound insulation box 1, and the noise reduction effect is more obvious, and the shielding box 7 is installed on the second fixed bracket 15.
[0029] In this embodiment, a mobile phone button testing mechanism includes a test carrier assembly 16 and the button testing module arranged on one side or both sides of the test carrier assembly 16, and the test carrier assembly 16 is used to place a mobile phone product 17. The buttons on the side end of the mobile phone product 17 are on the same horizontal plane as the bionic pressing head 5, so as to adapt to the testing of single-sided or double-sided buttons of the mobile phone product 17.
[0030] In this embodiment, the test carrier assembly 16 includes a carrier plate 161 , and clamping blocks 162 are disposed around the carrier plate 161 . The mobile phone product 17 is fixed on the carrier plate 161 through the clamping blocks 162 .
[0031] In this embodiment, the mobile phone button testing mechanism also includes a screw motor 18, a transmission screw 19, a screw mounting seat, a screw sliding block, two slide rails 20 and two sliders. The two ends of the transmission screw 19 are respectively connected to the screw motor 18 and the screw mounting seat. The two slide rails 20 are respectively located on both sides of the transmission screw 19. The screw sliding block is adapted to be installed on the transmission screw 19 and is connected to the bottom of the carrier plate 161. The sliders are respectively installed on both sides of the lower end of the carrier plate 161. The sliders are adapted to be installed on the slide rails 20. The screw motor 18 is electrically connected to the controller 10. This design can drive the mobile phone product 17 to move forward and backward, so that multiple buttons on the same side of the mobile phone product 17 can be tested.
[0032] In this embodiment, a mobile phone test box includes a test shielding box, in which a workbench 21 and an industrial computer 22 are arranged. The workbench 21 is provided with the mobile phone key test mechanism, and the industrial computer 22 is electrically connected to the data acquisition card 9 and the controller 10.
[0033] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.
Claims
1. A key test module, characterized in that: It comprises a sound insulation box (1), a push rod motor (2), a push rod (3), a pressure sensor (4) and a bionic pressing head (5), wherein the push rod motor (2) is installed inside the sound insulation box (1), one end of the push rod (3) is connected to the push rod motor (2), the other end of the push rod (3) passes through the sound insulation box (1) and is connected to one end of the pressure sensor (4), and the bionic pressing head (5) is connected to the other end of the pressure sensor (4).
2. A key test module according to claim 1, characterized in that: An encoder (6) is installed at the tail of the push rod motor (2).
3. A key test module according to claim 2, characterized in that: A shielding box (7) is provided at one end of the soundproof box (1), a transmitter (8) and a data acquisition card (9) are installed inside the shielding box (7), and the transmitter (8) is electrically connected to the data acquisition card (9) and the pressure sensor (4).
4. A key test module according to claim 3, characterized in that: The key test module also includes a controller (10), and the controller (10) is electrically connected to the data acquisition card (9), the push rod motor (2) and the encoder (6).
5. A key test module according to claim 4, characterized in that: A photoelectric sensing sheet (11) is installed on the part of the push rod (3) that passes through the sound insulation box (1), and a photoelectric sensor (12) that is compatible with the photoelectric sensing sheet (11) is installed outside the sound insulation box (1), and the photoelectric sensor (12) is electrically connected to the controller (10).
6. A key test module according to claim 4, characterized in that: A motor mounting bracket (13) is installed in the sound insulation box (1), and the push rod motor (2) is fixed on the motor mounting bracket (13); the key test module also includes a first fixed bracket (14) and a second fixed bracket (15), the sound insulation box (1) is installed on the first fixed bracket (14), the sound insulation box (1) is provided with a through hole compatible with the push rod (3), and a sealing member is provided between the through hole and the push rod (3) to ensure the sealing of the sound insulation box (1), and a wire heat dissipation hole is added at the bottom of the rear end of the sound insulation box (1), and the shielding box (7) is installed on the second fixed bracket (15).
7. A mobile phone key testing mechanism, characterized in that: It comprises a test carrier assembly (16) and a button test module as described in any one of claims 4 to 6, which is arranged on one side or both sides of the test carrier assembly (16); the test carrier assembly (16) is used to place a mobile phone product (17); and the buttons on the side end of the mobile phone product (17) are in the same horizontal plane as the bionic pressing head (5).
8. The mobile phone key testing mechanism according to claim 7, characterized in that: The test carrier assembly (16) comprises a carrier plate (161), and clamping blocks (162) are arranged around the carrier plate (161). The mobile phone product (17) is fixed on the carrier plate (161) via the clamping blocks (162).
9. The mobile phone key testing mechanism according to claim 8, characterized in that: The mobile phone keypad testing mechanism also includes a screw motor (18), a transmission screw (19), a screw mounting seat, a screw sliding block, two slide rails (20) and two sliders. The two ends of the transmission screw (19) are respectively connected to the screw motor (18) and the screw mounting seat. The two slide rails (20) are respectively located on both sides of the transmission screw (19). The screw sliding block is adapted to be installed on the transmission screw (19) and is connected to the bottom of the carrier plate (161). The sliders are respectively installed on both sides of the lower end of the carrier plate (161). The sliders are adapted to be installed on the slide rails (20). The screw motor (18) is electrically connected to the controller (10).
10. A mobile phone test box, characterized in that: The invention comprises a test shielding box, wherein a workbench (21) and an industrial computer (22) are arranged in the test shielding box, the workbench (21) is provided with a mobile phone key test mechanism as claimed in claim 9, and the industrial computer (22) is electrically connected to the data acquisition card (9) and the controller (10).