Membrane switch reliability detection device

Abstract

The invention discloses a membrane switch reliability detection device, and relates to the technical field of membrane switches, the membrane switch reliability detection device comprises a support unit comprising a fixed frame, an operation table arranged at the top of the fixed frame, and a moving groove arranged in the operation table, and a fixed detection unit comprising a driving assembly arranged on the fixed frame and a clamping assembly arranged on the driving assembly, the detection assembly is arranged on the top of the fixing frame and matched with the driving assembly. The membrane switch is placed on the top of the driving assembly, the driving clamping assembly and the sliding buckle work cooperatively through the downward moving action of the driving assembly, the membrane switch is fixed in multiple directions, and it is ensured that the membrane switch is stable and immovable in the detection process; the problems that a traditional detection device is lack of limiting, so that the membrane switch deviates, and accurate fixed-point detection cannot be achieved are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane switches, and in particular to a reliability detection device for membrane switches. Background Art

[0002] With the continuous progress of social science, membrane switches are used more and more widely. A membrane switch is an operating system integrating button functions, indicating elements, and instrument panels, and is composed of a panel, an upper circuit, an isolation layer, and a lower circuit. When the membrane switch is produced, it needs to be detected to ensure the quality of the membrane switch.

[0003] At present, when the traditional such detection device is detecting, it is inconvenient to limit the membrane switch, resulting in the membrane switch being prone to move randomly during the pressing and power-on detection, causing the membrane switch to shift, and resulting in the inability to accurately detect the on-resistance, short circuit, open circuit, connection, and over-standard resistance value, micro-short circuit, insulation impedance and other state parameters of the membrane switch at a fixed point, making the membrane switch unable to be used normally. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing reliability detection device for membrane switches, the present invention is proposed.

[0005] Therefore, the present invention provides a reliability detection device for membrane switches, and its purpose is to solve the problem that the membrane switch is prone to move randomly during the pressing and power-on detection, causing the membrane switch to shift, resulting in the inability to accurately detect the membrane switch at a fixed point, and causing the membrane switch to be unable to be used.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a support unit, including a fixed frame, an operating table provided on the top of the fixed frame, and a moving groove provided inside the operating table; A fixed detection unit, including a driving component provided on the fixed frame, a clamping component provided on the driving component, and a detection component provided on the top of the fixed frame, and the detection component cooperates with the driving component; An electrical detection unit, including an electrical detection component provided on the top of the fixed frame, and a display component provided at the other end of the electrical detection component, and the display component is fixedly connected to the fixed frame.

[0007] As a preferred solution of the reliability detection device for membrane switches of the present invention, wherein: the driving component includes a fixed column provided on the fixed frame, a support rod slidably provided inside the fixed column, a rotating shaft provided on the top of the support rod, a placement member provided on the top of the rotating shaft, and a retractable rod rotatably provided inside the rotating shaft, and the retractable rod is rotatably connected to the clamping component.

[0008] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: a reset spring is arranged inside the fixed column, and the top of the reset spring is connected to the support rod.

[0009] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: a clamping groove is arranged on the outer diameter of the fixed column.

[0010] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: a rotating part is rotatably arranged on the outer diameter of the support rod, a clamping block is arranged inside the rotating part, and the clamping block is slidably connected to the clamping groove.

[0011] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: the clamping assembly includes a fixed column arranged at one end of the contraction rod, an L-shaped rod arranged at the top of the fixed column, a fixing plate arranged on the L-shaped rod, and a fixing block arranged on the fixing plate, and the fixed column is slidably connected to the moving groove.

[0012] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: the detection assembly includes a connecting part arranged at the top of the fixed frame, a moving part arranged on the connecting part, an adjusting part slidably arranged on the moving part, a moving plate arranged on the adjusting part, and a pressing part arranged on the moving plate, and the pressing part cooperates with the placing part.

[0013] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: a driving part is arranged on one side of the moving part.

[0014] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: the electrical detection assembly includes a connecting device arranged at the top of the fixed frame, and a transmission device arranged on the connecting device, and the connecting device is slidably connected to the placing part.

[0015] As a preferred solution of the thin-film switch reliability detection device of the present invention, wherein: the display assembly includes a control device arranged on the fixed frame, and an alarm device arranged on the control device, and the alarm device is electrically connected to the control device and the transmission device.

[0016] Advantages of the present invention: By placing the membrane switch on top of the driving component and using the downward movement of the driving component to make the driving clamping component and the sliding buckle work together, the membrane switch is fixed from multiple directions, ensuring its stability during the detection process and effectively avoiding the problems of membrane switch offset and inaccurate fixed-point detection caused by the lack of limit in traditional detection devices. At the same time, the combined use of the detection component and the electrical detection component can not only complete the physical button detection of the membrane switch, but also comprehensively detect its state parameters such as conduction resistance, short circuit, open circuit, connection, over-standard resistance value, micro short circuit, and insulation impedance, realizing a comprehensive evaluation of the capacitance usage of the membrane switch. In addition, when an abnormality of the membrane switch is detected, the display component can give an alarm in time to remind the operator to handle it, further improving the reliability and safety of the detection, not only improving the detection efficiency, but also reducing the waste of production costs caused by inaccurate detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the reliability detection device for the membrane switch of the present invention.

[0019] Figure 2 It is a schematic diagram of the side structure of the reliability detection device for the membrane switch of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the fixing component of the reliability detection device for the membrane switch of the present invention.

[0021] Figure 4 For the reliability detection device of the membrane switch of the present invention Figure 3 The enlarged schematic diagram of part A.

[0022] Figure 5 For the reliability detection device of the membrane switch of the present invention Figure 3 The enlarged schematic diagram of part B.

[0023] Figure 6 It is a schematic diagram of the top structure of the reliability detection device for the membrane switch of the present invention.

[0024] Figure 7 It is a schematic diagram of the sectional structure of the fixing component of the reliability detection device for the membrane switch of the present invention.

[0025] Figure 8 For the reliability detection device of the membrane switch of the present inventionFigure 7 Schematic diagram of the enlarged structure at position C.

[0026] Description of the reference numerals in the drawings: 100, support unit; 101, fixing frame; 102, operating table; 103, moving groove; 200, fixed detection unit; 201, driving component; 2011, fixed column; 2012, return spring; 2013, support rod; 2014, rotating part; 2015, clamping block; 2016, clamping groove; 2017, rotating shaft; 2018, placing part; 2019, retractable rod; 202, clamping component; 2021, rotating and moving shaft; 2022, L-shaped rod; 2023, fixing plate; 2024, fixing block; 203, detection component; 2031, connecting part; 2032, moving part; 2033, driving part; 2034, adjusting part; 2035, moving plate; 2036, pressing part; 204, sliding buckle; 300, electrical detection unit; 301, electrical detection component; 3011, connecting device; 3012, transmission device; 302, display component; 3021, control device; 3022, alarm device. Detailed implementation manners

[0027] To make the above objects, features, and advantages of the present invention more obvious and understandable, the detailed implementation manners of the present invention will be described in detail below with reference to the drawings in the specification.

[0028] Example 1, referring to Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a reliability detection device for membrane switches. This device includes: a support unit 100, a fixed detection unit 200, and an electrical detection unit 300.

[0029] Among them, the support unit 100 includes a fixing frame 101, an operating table 102 provided on the top of the fixing frame 101, and a moving groove 103 provided inside the operating table 102; The fixed detection unit 200 includes a driving component 201 provided on the fixing frame 101, a clamping component 202 provided on the driving component 201, and a detection component 203 provided on the top of the fixing frame 101, and the detection component 203 cooperates with the driving component 201; The electrical inspection unit 300 includes an electrical inspection component 301 disposed on the top of the fixing frame 101 and a display component 302 disposed at the other end of the electrical inspection component 301, and the display component 302 is fixedly connected to the fixing frame 101. When inspecting the membrane switch after production, the operator places the membrane switch on the top of the driving component 201 and then presses it downward with the membrane switch, so that the membrane switch and the driving component 201 move together towards the fixing frame 101. At the same time when the driving component 201 and the membrane switch move together, the driving component 201 squeezes the clamping components 202 on both sides, so that the clamping components 202 start to adjust and move, and the clamping components 202 on both sides start to be driven by the driving component 201 to move closer to the middle, and start to clamp and fix the membrane switch on the top of the driving component 201, so that the membrane switch is firmly fixed on the top of the driving component 201. And during the downward movement of the driving component 201, the sliding buckle 204 on the fixing frame 101 is also squeezed, so that the sliding buckle 204 also starts to flip and buckle onto the membrane switch on the top of the driving component 201, so that the left, right, front and back of the membrane switch are all restricted on the top of the driving component 201, thus completing the fixing of the membrane switch.

[0030] After the membrane switch is fixed by the clamping components 202 and the sliding buckle 204, the detection component 203 starts to move downward, starts to squeeze the membrane switch on the top of the driving component 201, and starts to test the flexibility of the membrane switch buttons. And during the downward movement of the driving component 201, it is also connected to the electrical inspection component 301. After the detection component 203 detects the flexibility of the membrane switch buttons, it cooperates with the electrical inspection component 301 to start detecting the state parameters such as the conduction resistance, short circuit, open circuit, connection, over-standard resistance value, micro short circuit, insulation impedance, etc. inside the membrane switch. If an abnormality occurs in the membrane switch, the display component 302 will start to process and give an alarm, indicating that there is a problem with this membrane switch and it needs to be adjusted.

[0031] During use, when detecting the film switch that has been produced, the operator places the film switch on the top of the driving component 201, and then presses it down suddenly with the film switch, so that the film switch and the driving component 201 move together towards the fixing frame 101. At the same time when the driving component 201 and the film switch move together, the driving component 201 squeezes the clamping components 202 on both sides, so that the clamping components 202 start to adjust and move, and the clamping components 202 on both sides start to be driven by the driving component 201 to move closer to the middle, and start to clamp and fix the film switch on the top of the driving component 201, so that the film switch is firmly fixed on the top of the driving component 201. And during the downward movement of the driving component 201, the sliding buckle 204 on the fixing frame 101 is also squeezed, so that the sliding buckle 204 also starts to flip and buckle onto the film switch on the top of the driving component 201, so that the left, right, front and back of the film switch are all restricted on the top of the driving component 201, thus completing the fixation of the film switch.

[0032] After the film switch is fixed by the clamping components 202 and the sliding buckle 204, the detection component 203 starts to move downward, starts to squeeze the film switch on the top of the driving component 201, and starts to test the flexibility of the film switch buttons. And during the downward movement of the driving component 201, it is also connected to the electrical detection component 301. After the detection component 203 detects the flexibility of the film switch buttons, it cooperates with the electrical detection component 301 to start detecting the state parameters such as the conduction resistance, short circuit, open circuit, wiring, over-standard resistance value, micro short circuit, and insulation impedance inside the film switch. If an abnormality occurs in the film switch, the display component 302 will start to process and give an alarm, indicating that this film switch has a problem and needs to be adjusted. By the downward movement of the driving component 201, the driving clamping components 202 and the sliding buckle 204 work together to fix the film switch from multiple directions, ensuring that it is stable and immovable during the detection process, effectively avoiding the problem that the film switch deviates and cannot be accurately detected at a fixed point due to the lack of limit in the traditional detection device. At the same time, the combined use of the detection component and the electrical detection component can not only complete the physical button detection of the film switch, but also conduct a comprehensive detection.

[0033] Embodiment 2, refer to Figure 1 - Figure 7, which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the driving component 201 includes a fixed column 2011 arranged on the fixed frame 101, a support rod 2013 slidably arranged inside the fixed column 2011, a rotating shaft 2017 arranged at the top of the support rod 2013, a placing member 2018 arranged at the top of the rotating shaft 2017, and a retractable rod 2019 rotatably arranged inside the rotating shaft 2017. The retractable rod 2019 is rotatably connected to the clamping component 202. A return spring 2012 is arranged inside the fixed column 2011, and the top of the return spring 2012 is connected to the support rod 2013. A clamping groove 2016 is arranged on the outer diameter of the fixed column 2011. A rotating member 2014 is rotatably arranged on the outer diameter of the support rod 2013. A clamping block 2015 is arranged inside the rotating member 2014, and the clamping block 2015 is slidably connected to the clamping groove 2016. The clamping component 202 includes a fixed column 2011 arranged at one end of the retractable rod 2019, an L-shaped rod 2022 arranged at the top of the fixed column 2011, a fixing plate 2023 arranged on the L-shaped rod 2022, and a fixed block 2024 arranged on the fixing plate 2023. The fixed column 2011 is slidably connected to the moving groove 103. When detecting the membrane switch, by placing the membrane switch on the top of the placing member 2018 and pressing the membrane switch and the placing member 2018 downward together, the placing member 2018 presses the rotating shaft 2017 at the bottom, and the rotating shaft 2017 starts to be pressed to both sides, squeezing the retractable rod 2019 inside the rotating shaft 2017, and the retractable rod 2019 squeezes the rotating and moving shaft 2021, causing the rotating and moving shaft 2021 to start moving and rotating inside the moving groove 103, adjusting the rotation angle of the L-shaped rod 2022 and the fixing plate 2023. And by the extrusion of the retractable rod 2019, the fixed block 2024 on the fixing plate 2023 starts to clamp towards the top of the placing member 2018 in the middle. And during the downward movement of the placing member 2018, it also presses the sliding buckle 204 inside the fixed frame 101, causing the sliding buckle 204 to start to flip and engage on the top of the placing member 2018, so that the fixed block 2024 and the sliding buckle 204 together clamp on the membrane switch on the top of the placing member 2018. And during the downward movement of the rotating shaft 2017, the support rod 2013 also starts to move inside the fixed column 2011, and the clamping block 2015 on the rotating member 2014 engages inside the clamping groove 2016 on the fixed column 2011 to complete the clamping and fixing, so that under the drive of the driving component 201, the clamping component 202 and the sliding buckle 204 fix the membrane switch on the top of the driving component 201.

[0034] Compared with Embodiment 1, further, the detection component 203 includes a connecting member 2031 disposed on the top of the fixing frame 101, a moving member 2032 disposed on the connecting member 2031, an adjusting member 2034 slidably disposed on the moving member 2032, a moving plate 2035 disposed on the adjusting member 2034, and a pressing member 2036 disposed on the moving plate 2035. The pressing member 2036 cooperates with the placing member 2018. A driving member 2033 is disposed on one side of the moving member 2032. After the clamping component 202 and the sliding buckle 204 complete the fixing of the membrane switch on the top of the driving component 201, the driving member 2033 drives the adjusting member 2034 on the moving member 2032 to start moving and adjusting, and the moving plate 2035 also moves along with the adjusting member 2034. At the same time, the pressing member 2036 starts to move downwards to start detecting the membrane switch on the bottom driving component 201, and detect the usage condition and service life of the membrane switch keys.

[0035] During the use process, when detecting the membrane switch, by placing the membrane switch on the top of the placing member 2018 and squeezing the membrane switch and the placing member 2018 downwards together, the placing member 2018 squeezes the rotating shaft 2017 at the bottom, and the rotating shaft 2017 starts to squeeze towards both sides, squeezing the contraction rod 2019 inside the rotating shaft 2017, and the contraction rod 2019 squeezes the rotating moving shaft 2021, so that the rotating moving shaft 2021 starts to move and rotate inside the moving groove 103, adjusting the rotation angles of the L-shaped rod 2022 and the fixing plate 2023, and through the squeezing of the contraction rod 2019, the fixing block 2024 on the fixing plate 2023 starts to clamp towards the top of the placing member 2018 in the middle. And during the downward movement of the placing member 2018, it also squeezes the sliding buckle 204 inside the fixing frame 101, so that the sliding buckle 204 also starts to flip and is clamped on the top of the placing member 2018, so that the fixing block 2024 and the sliding buckle 204 together are clamped on the membrane switch on the top of the placing member 2018. And during the downward movement of the rotating shaft 2017, the support rod 2013 also starts to move into the fixing column 2011, and is clamped inside the card slot 2016 on the fixing column 2011 through the card block 2015 on the rotating member 2014 to complete the clamping and fixing, so that under the drive of the driving component 201, the clamping component 202 and the sliding buckle 204 fix the membrane switch on the top of the driving component 201.

[0036] After the clamping component 202 and the sliding buckle 204 complete the fixation of the membrane switch on the top of the driving component 201, the adjusting piece 2034 on the moving piece 2032 is driven by the driving piece 2033 to start moving and adjusting, and the moving plate 2035 also moves along with the adjusting piece 2034. At the same time, the pressing piece 2036 starts to move downwards to start detecting the membrane switch on the bottom driving component 201, and to detect the usage condition and service life of the membrane switch buttons.

[0037] The remaining structures are the same as those of Embodiment 1.

[0038] Embodiment 3, refer to Figure 1 - Figure 8 , is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the electrical inspection component 301 includes a connection device 3011 arranged on the top of the fixing frame 101 and a transmission device 3012 arranged on the connection device 3011, and the connection device 3011 is slidably connected to the placing piece 2018. The display component 302 includes a control device 3021 arranged on the fixing frame 101 and an alarm device 3022 arranged on the control device 3021, and the alarm device 3022 is electrically connected to the control device 3021 and the transmission device 3012. After the detection component 203 completes the detection of the usage condition of the membrane switch buttons, since the driving component 201 is connected to the connection device 3011 during the downward movement, the connection device 3011 can cooperate with the detection component 203 to start detecting state parameters such as the conduction resistance, short circuit, open circuit, connection, over-standard resistance value, micro short circuit, and insulation impedance inside the membrane switch, and convey them to the inside of the control device 3021 through the transmission device 3012. And the detection component 203 also conveys the detection data to the inside of the control device 3021. Through the data analysis of the control device 3021, the overall detection of the membrane switch is completed. If an abnormality is detected in the membrane switch, the control device 3021 causes the alarm device 3022 to give an alarm, indicating that this membrane switch is abnormal and needs to be readjusted.

[0039] During use, after the detection component 203 finishes detecting the usage of the membrane switch button, since the driving component 201 is connected to the connecting device 3011 during its downward movement, the connecting device 3011 can cooperate with the detection component 203 to start detecting state parameters such as the conduction resistance, short circuit, open circuit, wiring, over-standard resistance value, micro short circuit, and insulation impedance inside the membrane switch, and transmit them to the inside of the control device 3021 through the transmission device 3012. Moreover, the detection component 203 also sends the detection data to the inside of the control device 3021. Through data analysis by the control device 3021, the overall detection of the membrane switch is completed. If an abnormality is detected in the membrane switch, the control device 3021 causes the alarm device 3022 to give an alarm, indicating that the membrane switch is abnormal and needs to be readjusted, realizing a comprehensive evaluation of the usage of the membrane switch capacitor. When an abnormality is detected in the membrane switch, the display component can give an alarm in a timely manner to remind the operator to handle it, further improving the reliability and safety of the detection. It not only improves the detection efficiency but also reduces the waste of production costs caused by inaccurate detection.

[0040] The remaining structure is the same as that of Embodiment 2.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A reliability detection device for a membrane switch, characterized in that: Comprising: A support unit (100), including a fixing frame (101), an operating table (102) disposed on the top of the fixing frame (101), and a moving groove (103) disposed inside the operating table (102); A fixed detection unit (200), including a driving component (201) disposed on the fixing frame (101), a clamping component (202) disposed on the driving component (201), and a detection component (203) disposed on the top of the fixing frame (101), and the detection component (203) cooperates with the driving component (201); An electrical inspection unit (300), including an electrical inspection component (301) disposed on the top of the fixing frame (101), and a display component (302) disposed at the other end of the electrical inspection component (301), and the display component (302) is fixedly connected to the fixing frame (101).

2. The reliability detection device for membrane switches according to claim 1, wherein: The driving component (201), including a fixed column (2011) disposed on the fixing frame (101), a support rod (2013) slidably disposed inside the fixed column (2011), a rotating shaft (2017) disposed on the top of the support rod (2013), a placing member (2018) disposed on the top of the rotating shaft (2017), and a retractable rod (2019) rotatably disposed inside the rotating shaft (2017), and the retractable rod (2019) is rotatably connected to the clamping component (202).

3. The reliability detection device for membrane switches according to claim 2, wherein: A reset spring (2012) is disposed inside the fixed column (2011), and the top of the reset spring (2012) is connected to the support rod (2013).

4. The reliability detection device for membrane switches according to claim 3, wherein: A card slot (2016) is disposed on the outer diameter of the fixed column (2011).

5. The reliability detection device for membrane switches according to claim 4, characterized in that: A rotating member (2014) is rotatably disposed on the outer diameter of the support rod (2013), a card block (2015) is disposed inside the rotating member (2014), and the card slot (2016) is slidably connected to the card slot (2016).

6. The reliability detection device for membrane switches according to claim 5, wherein: The clamping component (202), including a fixed column (2011) disposed at one end of the retractable rod (2019), an L-shaped rod (2022) disposed on the top of the fixed column (2011), a fixing plate (2023) disposed on the L-shaped rod (2022), and a fixing block (2024) disposed on the fixing plate (2023), and the fixed column (2011) is slidably connected to the moving groove (103).

7. The reliability detection device for membrane switches according to claim 6, wherein: The detection component (203), including a connecting member (2031) disposed on the top of the fixing frame (101), a moving member (2032) disposed on the connecting member (2031), an adjusting member (2034) slidably disposed on the moving member (2032), a moving plate (2035) disposed on the adjusting member (2034), and a pressing member (2036) disposed on the moving plate (2035), and the pressing member (2036) cooperates with the placing member (2018).

8. The reliability detection device for membrane switches according to claim 7, characterized in that: A driving member (2033) is disposed on one side of the moving member (2032).

9. The reliability detection device for membrane switches according to claim 8, wherein: The electrical inspection component (301), including a connecting device (3011) disposed on the top of the fixing frame (101), and a transmission device (3012) disposed on the connecting device (3011), and the connecting device (3011) is slidably connected to the placing member (2018).

10. The thin-film switch reliability detection device according to claim 9, wherein: A display component (302) includes a control device (3021) disposed on a fixing bracket (101), and an alarm device (3022) disposed on the control device (3021), and the alarm device (3022) is electrically connected to the control device (3021) and a transmission device (3012).

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