Membrane switch button fatigue test device

Abstract

The utility model discloses a membrane switch button fatigue testing device, comprising a main body frame unit which comprises a testing substrate and two fixing lugs fixedly installed at two ends of an upper side wall of the testing substrate, a plurality of groups of uniformly distributed connecting columns are arranged right above the testing substrate, and the connecting columns are connected with the testing substrate; the lower end of each connecting column is provided with a corresponding testing head. The driving unit comprises a driving motor fixedly installed on one of the fixing lugs, an output shaft of the driving motor penetrates through one of the fixing lugs to be fixedly connected with a rotating rod, the rotating rod is fixedly sleeved with multiple sets of evenly-distributed cams, and the lower ends of the side walls of the two fixing lugs are jointly and fixedly connected with a rectangular plate; a strip-shaped opening is formed in the rectangular plate in a penetrating mode, and a plurality of sets of evenly-distributed telescopic columns are fixedly connected to the upper side wall of the rectangular plate. According to the utility model, a plurality of membrane switch keys can be tested at the same time, the electric telescopic rod does not need to be replaced frequently, and the service life of the testing device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switch testing, in particular to a membrane switch button fatigue testing device. Background Art

[0002] The membrane switch has a rigorous structure, beautiful appearance, good sealing performance, and features such as moisture-proof and long service life. It is widely used in fields such as electronic communication, electronic measurement instruments, industrial control, medical equipment, automotive industry, intelligent toys, and household appliances. The membrane switch is also called a touch keyboard and adopts an integral sealed structure composed of planar multi-layers. It is a new type of electronic component that integrates light, machinery, and electricity by sealing button switches, panels, marks, symbol displays, and liners together. After the production of the membrane switch, ozone is required to test the button fatigue of the membrane switches in the same batch.

[0003] At present, when the membrane switch button fatigue testing device used on the market is actually in use, it mostly presses the membrane switch through an electric telescopic rod. However, due to the need for continuous, long-term, and frequent pressing operations during the test, and even thousands or tens of thousands of presses are required. When the electric push rod conducts the fatigue pressing test on the membrane switch, its frequent extension and contraction seriously shorten the normal service life of the electric telescopic rod, and the electric telescopic rod needs to be frequently replaced. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. Such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned existing membrane switch button fatigue testing device, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a membrane switch button fatigue testing device, which is suitable for solving the problems that the test requires continuous, long-term, and frequent pressing operations, and even thousands or tens of thousands of presses are required. When the electric push rod conducts the fatigue pressing test on the membrane switch, its frequent extension and contraction seriously shorten the normal service life of the electric telescopic rod, and the electric telescopic rod needs to be frequently replaced.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: A membrane switch button fatigue testing device, comprising:

[0008] The main frame unit includes a test substrate and two fixing ears fixedly installed at both ends of the upper side wall of the test substrate. Above the test substrate, there are multiple groups of evenly distributed connecting columns, and a corresponding test head is installed at the lower end of each connecting column.

[0009] The driving unit includes a driving motor fixedly installed on one of the fixing ears. The output shaft of the driving motor penetrates through one of the fixing ears and is fixedly connected to a rotating rod. Multiple groups of evenly distributed cams are fixedly sleeved on the rotating rod. The lower ends of the side walls of the two fixing ears are jointly fixedly connected to a rectangular plate. A strip-shaped opening is provided through the rectangular plate. Multiple groups of evenly distributed telescopic columns are fixedly connected to the upper side wall of the rectangular plate. The tops of the multiple telescopic columns are jointly fixedly connected to an impact plate. Corresponding compression springs are sleeved on the telescopic columns. The impact plate is arranged to match the cam.

[0010] As a preferred scheme of the thin film switch button fatigue test device of the present utility model, the test device further includes a spacing adjustment unit, which includes two fixing blocks fixedly installed at both ends of the lower side wall of the impact plate and a sliding rod fixedly installed between the two fixing blocks. Multiple groups of evenly distributed sliding sleeves are slidably sleeved on the sliding rod. A pair of symmetrically positioned positioning bolts are threadedly connected to each sliding sleeve. Each positioning bolt penetrates through the sliding sleeve and abuts against the sliding rod. The lower side wall of each sliding sleeve is fixedly connected to the corresponding connecting column.

[0011] As a preferred scheme of the thin film switch button fatigue test device of the present utility model, locking grooves matching the multiple groups of positioning bolts are provided on the side wall of the sliding rod. A corresponding support slider is fixedly connected to the upper side wall of each sliding sleeve, and a limiting sliding groove matching the multiple groups of support sliders is provided on the lower side wall of the impact plate.

[0012] As a preferred scheme of the thin film switch button fatigue test device of the present utility model, the connecting column is threadedly connected to the test head, and a layer of soft silicone pad is wrapped on the outer surface of the test head.

[0013] As a preferred scheme of the thin film switch button fatigue test device of the present utility model, multiple groups of evenly distributed fastening bolts are threadedly connected to the upper side wall of the impact plate. Each fastening bolt penetrates through the impact plate and is threadedly connected to the top end of the corresponding telescopic column.

[0014] As a preferred scheme of the thin film switch button fatigue test device of the present utility model, a motor mounting seat is fixedly installed on the fixing ear, and the motor mounting seat is fixedly connected to the driving motor.

[0015] Advantages of the present utility model: Place the membrane switch button whose fatigue needs to be tested on the test substrate, adjust the position of the corresponding test head according to the position of the membrane switch, then tighten the positioning bolt, start the driving motor, the output shaft of the driving motor drives the rotating rod and the cam to rotate, and each rotation of the cam will impact the impact plate, and the impact plate drives the connecting column and the test head to repeatedly press the membrane switch button, so as to realize long-term continuous pressing of the membrane switch button. Compared with the method of using an electric telescopic rod for fatigue testing, this testing method has higher efficiency, can test multiple membrane switch buttons at the same time, does not need to frequently replace the electric telescopic rod, and improves the service life of the testing device. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of a membrane switch button fatigue testing device proposed by the present utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the driving unit and the spacing adjustment unit of a membrane switch button fatigue testing device proposed by the present utility model;

[0019] Figure 3 It is a schematic diagram of the cooperation structure of the sliding sleeve and the positioning bolt of a membrane switch button fatigue testing device proposed by the present utility model.

[0020] Brief Description of the Drawings: 100 Main Frame Unit, 101 Test Substrate, 102 Fixed Ear, 103 Connecting Column, 104 Test Head, 200 Driving Unit, 201 Driving Motor, 202 Rotating Rod, 203 Cam, 204 Rectangular Plate, 205 Telescopic Column, 206 Compression Spring, 207 Impact Plate, 208 Fastening Bolt, 300 Spacing Adjustment Unit, 301 Fixed Block, 302 Slide Rod, 303 Sliding Sleeve, 304 Positioning Bolt, 305 Support Slide Block. Detailed Embodiment

[0021] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the drawings in the specification.

[0022] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0024] Thirdly, the present utility model is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present utility model, for the sake of clarity, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion. Moreover, the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0025] Referring to Figures 1 - 3 , for an embodiment of the present utility model, there is provided a thin-film switch button fatigue test device, including: a main frame unit 100, a driving unit 200, and a spacing adjustment unit 300.

[0026] Among them, the main frame unit 100 includes a test substrate 101 and two fixing ears 102 fixedly installed at both ends of the upper side wall of the test substrate 101. A plurality of groups of uniformly distributed connecting columns 103 are arranged directly above the test substrate 101. A corresponding test head 104 is installed at the lower end of each connecting column 103. The connecting column 103 is threadedly connected to the test head 104. The threaded connection between the connecting column 103 and the test head 104 can facilitate the replacement of the test head 104. Moreover, a layer of soft silicone pad is wrapped around the outer surface of the test head 104. The setting of the soft silicone pad can protect the thin-film switch button to be tested and avoid directly damaging the thin-film switch button due to excessive impact force;

[0027] The driving unit 200 includes a driving motor 201 fixedly installed on one of the fixed ears 102. A motor mounting seat is fixedly installed on the fixed ear 102, and the motor mounting seat is fixedly connected to the driving motor 201. Through the setting of the motor mounting seat, the connection stability between the driving motor 201 and the fixed ear 102 is improved. The output shaft of the driving motor 201 penetrates through one of the fixed ears 102 and is fixedly connected to a rotating rod 202. A plurality of groups of evenly distributed cams 203 are fixedly sleeved on the rotating rod 202. The lower ends of the side walls of the two fixed ears 102 are fixedly connected to a rectangular plate 204 together. A strip-shaped opening is provided through the rectangular plate 204. A plurality of groups of evenly distributed telescopic columns 205 are fixedly connected to the upper side wall of the rectangular plate 204. The tops of the plurality of telescopic columns 205 are fixedly connected to an impact plate 207 together. A plurality of groups of evenly distributed fastening bolts 208 are threadedly connected to the upper side wall of the impact plate 207. Each fastening bolt 208 penetrates through the impact plate 207 and is threadedly connected to the top of the corresponding telescopic column 205. Through the setting of the fastening bolts 208, the impact plate 207 can be directly disassembled from the rectangular plate 204 for replacement. A corresponding compression spring 206 is sleeved on the telescopic column 205, and the impact plate 207 is arranged to match the cam 203.

[0028] The spacing adjustment unit 300 includes two fixed blocks 301 fixedly installed at both ends of the lower side wall of the impact plate 207 and a sliding rod 302 fixedly installed between the two fixed blocks 301. A plurality of groups of evenly distributed sliding sleeves 303 are slidably sleeved on the sliding rod 302. A pair of symmetrically positioned positioning bolts 304 are threadedly connected to each sliding sleeve 303. Each positioning bolt 304 penetrates through the sliding sleeve 303 and abuts against the sliding rod 302. The lower side wall of each sliding sleeve 303 is fixedly connected to the corresponding connecting column 103. Through the combined use of the sliding rod 302, the sliding sleeves 303, and the positioning bolts 304, the position of the test head 104 can be adjusted accordingly according to the spacing or specifications of the membrane switches to be tested, so as to simultaneously perform fatigue tests on multiple membrane switch buttons, greatly improving the test efficiency of the test device for the fatigue of membrane switch buttons.

[0029] Locking grooves matching the plurality of groups of positioning bolts 304 are provided on the side wall of the sliding rod 302. A corresponding support slider 305 is fixedly connected to the upper side wall of each sliding sleeve 303, and a limiting sliding groove matching the plurality of groups of support sliders 305 is provided on the lower side wall of the impact plate 207. The support slider 305 can support the sliding sleeve 303 and the sliding rod 302 from the upper end, effectively solving the defect that the sliding rod 302 and the sliding sleeve 303 are prone to deformation under the action of reaction forces. The setting of the locking grooves improves the positioning effect of the positioning bolts 304 on the sliding sleeve 303 on the sliding rod 302.

[0030] During use, place the membrane switch button whose fatigue needs to be tested on the test substrate 101. Adjust the position of the corresponding test head 104 according to the position of the membrane switch, and then tighten the positioning bolt 304. Start the drive motor 201. The output shaft of the drive motor 201 drives the rotating rod 202 and the cam 203 to rotate. Each rotation of the cam 203 will hit the impact plate 207. The impact plate 207 drives the connecting column 103 and the test head 04 to repeatedly press the membrane switch button, so as to realize long-term continuous pressing of the membrane switch button. Compared with the method of using an electric telescopic rod for fatigue testing, this kind of testing has higher efficiency, can test multiple membrane switch buttons at the same time, and does not need to frequently replace the electric telescopic rod, improving the service life of the testing device.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. 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 thin-film switch button fatigue test device, characterized in that Including: A main frame unit (100), which includes a test substrate (101) and two fixing ears (102) fixedly installed at both ends of the upper side wall of the test substrate (101). A plurality of groups of evenly distributed connecting columns (103) are arranged directly above the test substrate (101), and a corresponding test head (104) is installed at the lower end of each connecting column (103); A driving unit (200), which includes a driving motor (201) fixedly installed on one of the fixing ears (102). The output shaft of the driving motor (201) penetrates through one of the fixing ears (102) and is fixedly connected to a rotating rod (202). A plurality of groups of evenly distributed cams (203) are fixedly sleeved on the rotating rod (202). A rectangular plate (204) is fixedly connected to the lower ends of the side walls of the two fixing ears (102). A strip-shaped opening is provided through the rectangular plate (204). A plurality of groups of evenly distributed telescopic columns (205) are fixedly connected to the upper side wall of the rectangular plate (204). The tops of the plurality of telescopic columns (205) are fixedly connected to an impact plate (207). A corresponding compression spring (206) is sleeved on the telescopic column (205). The impact plate (207) is arranged to match the cam (203).

2. The thin film switch button fatigue test device according to claim 1, characterized in that: The test device further includes a spacing adjustment unit (300), which includes two fixing blocks (301) fixedly installed at both ends of the lower side wall of the impact plate (207) and a sliding rod (302) fixedly installed between the two fixing blocks (301). A plurality of groups of evenly distributed sliding sleeves (303) are slidably sleeved on the sliding rod (302). A pair of symmetrically positioned positioning bolts (304) are threadedly connected to each sliding sleeve (303). Each positioning bolt (304) penetrates through the sliding sleeve (303) and abuts against the sliding rod (302). The lower side wall of each sliding sleeve (303) is fixedly connected to the corresponding connecting column (103).

3. The thin-film switch button fatigue test device according to claim 2, wherein: Locking grooves matching the plurality of positioning bolts (304) are provided on the side wall of the sliding rod (302). A corresponding support slider (305) is fixedly connected to the upper side wall of each sliding sleeve (303), and a limiting sliding groove matching the plurality of support sliders (305) is provided on the lower side wall of the impact plate (207).

4. A thin-film switch button fatigue test device according to claim 1, characterized in that: The connecting column (103) is threadedly connected to the test head (104), and a layer of soft silicone pad is wrapped on the outer surface of the test head (104).

5. The thin-film switch button fatigue test device according to claim 1, characterized in that: A plurality of groups of evenly distributed fastening bolts (208) are threadedly connected to the upper side wall of the impact plate (207). Each fastening bolt (208) penetrates through the impact plate (207) and is threadedly connected to the top of the corresponding telescopic column (205).

6. The thin-film switch button fatigue test device according to claim 1, wherein: A motor mounting seat is fixedly installed on the fixing ear (102), and the motor mounting seat is fixedly connected to the driving motor (201).

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