Light and thin compact membrane switch

Abstract

The utility model relates to the technical field of membrane switches, in particular to a light and thin compact membrane switch, which comprises a mounting plate, a switch assembly, a control assembly and a sealing assembly. The switch assembly comprises a plurality of reset springs, a supporting plate and two contact blocks, the reset springs are fixedly connected with the mounting plate and located at the top of the mounting plate, the supporting plate is fixedly connected with the reset springs and located at the tops of the reset springs, and the contact blocks are fixedly connected with the supporting plate and located at the tops of the reset springs. The two contact blocks are fixedly connected with the supporting plate respectively and located at the bottom of the supporting plate respectively, the control assembly and the sealing assembly are connected with the mounting plate respectively, and the problems that when a light and thin compact type membrane switch is used, the switch is supported only through a metal elastic piece, the metal elastic piece is prone to deformation when used for a long time, springback of the switch is not facilitated, and the service life of the switch is prolonged are solved. And switch failure is easily caused.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switches, in particular to a light, thin and compact membrane switch. Background Art

[0002] At present, the buttons of portable electronic products such as smart phones and tablets mainly use membrane switches. As electronic products tend to be more and more lightweight, however, due to the thinning of the overall design, there is not enough space on the side to install side buttons, thus limiting the degree of lightweight development of mobile phones.

[0003] The existing announcement number CN204680588U discloses a thin and compact membrane switch, including a release layer, a spacer, a metal spring and a MYLAR layer; the MYLAR layer includes an arched portion and a flat portion, and a concave cavity is formed at the bottom of the arched portion; an adhesive layer is provided at the top of the spacer and the bottom of the flat portion of the MYLAR layer, the top of the spacer is bonded to the release layer, and the flat portion of the MYLAR layer is bonded to the spacer; a clearance groove is provided on the spacer; the vertical cross-section of the metal spring is an upwardly arched arc structure, and the arched top of the arc structure is provided with a concave position for accommodating impurities, dust, etc., so as to reduce the influence of impurities, dust, etc. on contact conduction; the top of the metal spring extends into the concave cavity, and the front and rear ends of the bottom of the metal spring are located in the clearance groove; and the top view structure of the metal spring is a waist-shaped structure; it solves the problem that there is not enough space on the side to install side buttons due to the overall thinning requirement of mobile phones, etc., and its structure is simple, easy to produce and manufacture, and will not increase production costs.

[0004] However, when the above-mentioned thin and compact membrane switch is in use, the switch is supported only by the metal spring sheet. When used for a long time, the metal spring sheet is prone to deformation, which is not conducive to the rebound of the switch and easily causes the switch to fail. Utility Model Content

[0005] The utility model aims to provide a thin and compact membrane switch, which solves the problem that the thin and compact membrane switch is supported only by a metal spring when in use, and the metal spring is easily deformed after long-term use, which is not conducive to the rebound of the switch and easily causes the switch to fail.

[0006] To achieve the above-mentioned purpose, the utility model provides a thin and compact membrane switch, including a mounting plate, a switch assembly, a control assembly and a sealing assembly; the switch assembly includes a reset spring, a support plate and a contact block, the number of the reset springs is multiple, and the multiple reset springs are respectively fixedly connected to the mounting plate and are respectively located at the top of the mounting plate, the support plate is fixedly connected to the reset spring and is located at the top of the reset spring, the number of the contact blocks is two, the two contact blocks are respectively fixedly connected to the support plate and are respectively located at the bottom of the support plate, and the control assembly and the sealing assembly are respectively connected to the mounting plate.

[0007] Wherein, the switch assembly also includes a spring sheet and a support bar. There are two spring sheets, and the two spring sheets are fixedly connected to the support plate and are respectively located at both ends of the support plate. The support bar is fixedly connected to the support plate and is located between the support plate and the mounting plate.

[0008] Wherein, the control component includes a connecting plate, a control plate and a control screw. The number of the connecting plates is two, the number of the control screws is two, the two connecting plates are respectively connected to the mounting plates through the control screws, and are respectively located inside the mounting plates. The control plate is fixedly connected to the connecting plates and is located between the two connecting plates.

[0009] Wherein, the sealing assembly includes a cover plate, a side plate and a button, the cover plate is fixedly connected to the mounting plate and is located on the top of the mounting plate, the number of the side plates is two, the two side plates are respectively fixedly connected to the cover plate and are respectively located on both sides of the cover plate, the number of the buttons is two, the two buttons are respectively fixedly connected to the cover plate and are respectively located on the top of the cover plate.

[0010] Wherein, the thin and compact membrane switch further includes mounting screws, the number of the mounting screws is two, the two mounting screws are respectively threadedly connected to the mounting plate and respectively pass through the cover plate.

[0011] The utility model discloses a thin and compact membrane switch, wherein the mounting plate mounts the membrane switch on the side of the mobile phone, the reset spring provides elastic force for the support plate, so that the support plate is easy to rebound after being pressed down, the contact block contacts the control component, and after the support plate is pressed down, the contact block contacts the surface of the control component, so that the control component transmits an electrical signal to the main board, and then the elastic force provided by the reset spring resets the support plate, thereby achieving the purpose of facilitating the resetting of the support plate, and solving the problem that when the thin and compact membrane switch is in use, the switch is supported only by a metal spring sheet, and the metal spring sheet is easily deformed when used for a long time, which is not conducive to the rebound of the switch and easily causes the switch to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of a thin and compact membrane switch according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a switch assembly of the first embodiment of the utility model.

[0015] Figure 3 It is a structural schematic diagram of a control component of the first embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the overall structure of a thin and compact membrane switch according to the second embodiment of the utility model.

[0017] In the figure: 101-mounting plate, 102-reset spring, 103-support plate, 104-contact block, 105-spring, 106-support bar, 107-connecting plate, 108-control board, 109-control screw, 110-cover plate, 111-side plate, 112-button, 201-mounting screw. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the overall structure of a thin and compact membrane switch according to the first embodiment of the utility model. Figure 2 is a schematic structural diagram of a switch assembly according to a first embodiment of the present utility model. Figure 3 It is a structural schematic diagram of the control component of the first embodiment of the utility model. The utility model provides a thin and compact membrane switch, including a mounting plate 101, a switch component, a control component and a sealing component. The switch component includes a reset spring 102, a support plate 103, a contact block 104, a spring 105 and a support bar 106. The control component includes a connecting plate 107, a control plate 108 and a control screw 109. The sealing component includes a cover plate 110, a side plate 111 and a button 112. The above-mentioned scheme solves the problem that the thin and compact membrane switch is supported only by a metal spring when in use. When used for a long time, the metal spring is easily deformed, which is not conducive to the rebound of the switch and easily causes the switch to fail. It can be understood that the above-mentioned scheme can be used in the scenario of controlling the rebound of the membrane switch, and can also be used to solve the sealing problem of the membrane switch.

[0021] According to the present specific embodiment, the number of the return springs 102 is multiple, and the multiple return springs 102 are respectively fixedly connected to the mounting plate 101 and are respectively located at the top of the mounting plate 101, the support plate 103 is fixedly connected to the return spring 102 and is located at the top of the return spring 102, the number of the contact blocks 104 is two, and the two contact blocks 104 are respectively fixedly connected to the support plate 103 and are respectively located at the bottom of the support plate 103, the control component and the sealing component are respectively connected to the mounting plate 101 The mounting plate 101 mounts the membrane switch on the side of the mobile phone, the reset spring 102 provides elastic force for the support plate 103, so that the support plate 103 is easy to rebound after being pressed down, and the contact block 104 contacts the control component. After the support plate 103 is pressed down, the contact block 104 contacts the surface of the control component, so that the control component transmits an electrical signal to the mainboard, and then the elastic force provided by the reset spring 102 resets the support plate 103, thereby achieving the purpose of facilitating the resetting of the support plate 103.

[0022] Among them, the number of the spring sheets 105 is two, the two spring sheets 105 are respectively fixedly connected to the support plate 103 and are respectively located at the two ends of the support plate 103, the support bar 106 is fixedly connected to the support plate 103 and is located between the support plate 103 and the mounting plate 101, the spring sheet 105 provides elastic force for the support plate 103, so that the support plate 103 automatically rebounds under the dual elastic force of the return spring 102 and the spring sheet 105, which is convenient for supporting and rebounding the support plate 103, and the support bar 106 separates the two sides of the support plate 103, so that when one end of the support plate 103 is pressed down, the other end is not driven and pressed down at the same time.

[0023] Secondly, there are two connecting plates 107 and two control screws 109. The two connecting plates 107 are respectively connected to the mounting plate 101 through the control screws 109 and are respectively located inside the mounting plate 101. The control board 108 is fixedly connected to the connecting plates 107 and is located between the two connecting plates 107. The connecting plates 107 provide support for the control boards 108, and the control screws 109 provide a fixing effect for the connecting boards 107. A circuit board is provided on the surface of the control board 108, which contacts the circuit board provided inside the control board 108 through the contact block 104, so that the circuit board is energized and transmits the electrical signal to the mobile phone motherboard.

[0024] Again, the cover plate 110 is fixedly connected to the mounting plate 101 and is located at the top of the mounting plate 101. There are two side plates 111, which are respectively fixedly connected to the cover plate 110 and are respectively located on both sides of the cover plate 110. There are two buttons 112, which are respectively fixedly connected to the cover plate 110 and are respectively located on the top of the cover plate 110. The cover plate 110 is used to seal the support plate 103 and the spring sheet 105, and the side plate 111 is used to seal both sides of the support plate 103. The gap between the support plate 103 and the mounting plate 101 is sealed by the cover plate 110 and the side plate 111. The user can press the corresponding side of the support plate 103 through the protrusion of the button 112 to control the control panel 108.

[0025] A thin and compact membrane switch of the present embodiment is used. The mounting plate 101 mounts the membrane switch on the side of the mobile phone. The return spring 102 provides elastic force for the support plate 103, so that the support plate 103 is easy to rebound after being pressed down. The contact block 104 contacts the control component. After the support plate 103 is pressed down, the contact block 104 contacts the surface of the control component, so that the control component transmits an electrical signal to the mainboard. The elastic force provided by the return spring 102 resets the support plate 103, thereby achieving the purpose of facilitating the resetting of the support plate 103. The problem that the thin and compact membrane switch is supported only by a metal spring when in use and the metal spring is easily deformed after long-term use, which is not conducive to the rebound of the switch and easily causes the switch to fail is solved.

[0026] The second embodiment of the present application is:

[0027] Based on the first embodiment, please refer to Figure 4 ,in, Figure 4 It is a schematic diagram of the overall structure of a thin and compact membrane switch according to the second embodiment of the utility model.

[0028] The thin and compact membrane switch of this embodiment further includes a mounting screw 201 .

[0029] For this specific embodiment, the number of the mounting screws 201 is two, and the two mounting screws 201 are respectively threadedly connected to the mounting plate 101 and respectively pass through the cover plate 110. The mounting screws 201 are used to fix the mounting plate 101. Through the mounting screws 201, the mounting plate 101 can be easily fixed to the side of the mobile phone.

[0030] A thin and compact membrane switch of this embodiment is used, and the mounting screws 201 are used to fix the mounting plate 101. The mounting screws 201 facilitate fixing the mounting plate 101 on the side of the mobile phone.

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A thin and compact membrane switch, comprising a mounting plate, characterized in that: Also includes a switch assembly, a control assembly and a sealing assembly; The switch assembly includes a reset spring, a support plate and a contact block. There are multiple reset springs, which are fixedly connected to the mounting plate and located at the top of the mounting plate respectively. The support plate is fixedly connected to the reset spring and located at the top of the reset spring. There are two contact blocks, which are fixedly connected to the support plate and located at the bottom of the support plate respectively. The control assembly and the sealing assembly are connected to the mounting plate respectively.

2. A thin and compact membrane switch as claimed in claim 1, characterized in that: The switch assembly also includes a spring sheet and a support bar. There are two spring sheets, which are fixedly connected to the support plate and located at both ends of the support plate respectively. The support bar is fixedly connected to the support plate and located between the support plate and the mounting plate.

3. A thin and compact membrane switch as claimed in claim 1, characterized in that: The control assembly includes a connecting plate, a control plate and control screws. There are two connecting plates and two control screws. The two connecting plates are respectively connected to the mounting plates through the control screws and are respectively located inside the mounting plates. The control plate is fixedly connected to the connecting plates and is located between the two connecting plates.

4. A thin and compact membrane switch as claimed in claim 1, characterized in that: The sealing assembly includes a cover plate, a side plate and a button. The cover plate is fixedly connected to the mounting plate and is located on the top of the mounting plate. There are two side plates, which are respectively fixedly connected to the cover plate and are respectively located on both sides of the cover plate. There are two buttons, which are respectively fixedly connected to the cover plate and are respectively located on the top of the cover plate.

5. A thin and compact membrane switch as claimed in claim 4, characterized in that: The thin and compact membrane switch further includes two mounting screws, the two mounting screws are respectively threadedly connected to the mounting plate and respectively pass through the cover plate.

Images