CN114093704A - Novel structure membrane switch - Google Patents
Novel structure membrane switch Download PDFInfo
- Publication number
- CN114093704A CN114093704A CN202111308258.4A CN202111308258A CN114093704A CN 114093704 A CN114093704 A CN 114093704A CN 202111308258 A CN202111308258 A CN 202111308258A CN 114093704 A CN114093704 A CN 114093704A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- sealing
- upper cover
- key
- membrane switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 13
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 241000221535 Pucciniales Species 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
Abstract
The invention discloses a thin film switch with a new structure, which comprises a bottom shell, wherein a lower circuit is fixedly connected to the top of the bottom shell, a wire key is arranged at the top of the lower circuit, an elastic sheet is fixedly connected to the top of the wire key, a fixed layer is fixedly connected to the top of the elastic sheet, an upper cover is arranged at the top of the bottom shell, a waterproof mechanism is arranged inside the upper cover, a panel is fixedly connected to the top of the upper cover, the waterproof mechanism comprises a key, a sealing cover, a waterproof rubber ring, an air hole, a sealing ring and a sealing gasket, the sealing cover is fixedly connected to the top of the key, the waterproof rubber ring is arranged at the top of the key, the air hole is respectively formed in the axle centers of the key and the sealing cover, the sealing ring is fixedly connected to the bottom of the inner wall of the key, and the sealing gasket is arranged at the top of the sealing ring; according to the technical scheme provided by the invention, the waterproof mechanism, the waterproof rubber ring sealing ring, the sealing gasket, the air hole and the like are arranged, so that the pressing hand feeling is ensured, and the phenomenon that the elastic sheet rusts due to the fact that moisture enters the membrane switch is prevented.
Description
Technical Field
The invention relates to the technical field of electrical switches, in particular to a membrane switch with a novel structure.
Background
The membrane switch is also called a light touch keyboard, adopts an integral sealing structure formed by combining a plurality of layers of planes, is a novel integrated light collecting, mechanical and electrical electronic component for sealing a key switch, a panel, a mark, a symbol, a display and a lining board together, is commonly used for medical appliances, electronic measuring instruments, intelligent toys, household appliances and the like, and adopts the light touch membrane switch in certain specific toys and other electronic measuring equipment.
The prior art has the following defects or problems:
1. the existing membrane switch is usually provided with a hole for ensuring the pressing hand feeling of the membrane switch, and moisture easily enters the interior of the switch from the small hole, so that the elastic sheet of the membrane switch is corroded and rusted to damage the switch;
2. when the existing film switch is used, the PET film on the surface is easy to age after being pressed, so that the switch has poor hand feeling and poor rebound effect.
Disclosure of Invention
The invention aims to provide a membrane switch with a new structure aiming at the defects in the prior art so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a membrane switch with a new structure comprises a bottom shell, wherein a lower circuit is fixedly connected to the top of the bottom shell, a wire key is arranged on the top of the lower circuit, an elastic sheet is fixedly connected to the top of the wire key, a fixed layer is fixedly connected to the top of the elastic sheet, an upper cover is arranged on the top of the bottom shell, a waterproof mechanism is arranged inside the upper cover, and a panel is fixedly connected to the top of the upper cover;
the waterproof mechanism comprises a key, a sealing cover, a waterproof rubber ring, an air hole, a sealing ring and a sealing gasket, the sealing cover is fixedly connected to the top of the key, the waterproof rubber ring is arranged at the top of the key, the air hole is formed in the axle center of the key and the axis center of the sealing cover respectively, the sealing ring is fixedly connected to the bottom of the inner wall of the key, and the sealing gasket is arranged at the top of the sealing ring.
Optionally, the lateral wall of the bottom shell is fixedly connected with a clamping block, the top of the upper cover is fixedly connected with a buckle, and the buckle is arranged on the outer wall of the clamping block.
Optionally, the outer wall of the bottom of the key is fixedly connected with a spring strip, and one end of the spring strip is fixedly connected with the inner wall of the upper cover.
Optionally, the button is arranged at the top of the elastic sheet, and the waterproof rubber ring is fixedly connected at the joint of the button and the sealing cover.
Optionally, a rubber ring is arranged at the joint of the bottom shell and the upper cover, and one side of the waterproof rubber ring is fixedly connected to the inner wall of the upper cover.
Optionally, the air hole is respectively arranged at the top and the bottom of the axle center of the sealing ring and the sealing gasket, and one end of the air hole is arranged outside the upper cover.
Optionally, the waterproof rubber ring and the sealing ring are made of silicon rubber, and the panel is made of a PET material.
Optionally, the key and the sealing cover are made of nylon materials, and the spring plate and the spring strip are made of stainless steel materials.
Compared with the prior art, the invention provides a membrane switch with a new structure, which has the following beneficial effects:
1. according to the invention, the waterproof mechanism is arranged, and a structure similar to a one-way valve is formed by the waterproof rubber ring sealing ring, the sealing gasket and the air hole, so that the pressing hand feeling is ensured, moisture is prevented from entering the switch, and further, the switch is prevented from being rusted and damaged by the elastic sheet of the membrane switch;
2. according to the invention, the spring strip and the keys are arranged, so that the keys can rebound to the original positions under the action of the spring strip and the elastic sheet after each pressing, the panel can rebound to the original positions, and the problem of poor customs rebound hand feeling caused by the aging of a PET film is further prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is a top partial view of the present invention.
In the figure: 1. a bottom case; 101. a clamping block; 102. a spring bar; 2. an upper cover; 201. buckling; 3. a panel; 4. a circuit is down; 5. a wire bond; 6. a spring plate; 7. a fixed layer; 8. pressing a key; 801. a sealing cover; 802. a waterproof rubber ring; 803. air holes; 804. a seal ring; 805. a gasket seal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, in this embodiment: a membrane switch with a new structure comprises a bottom shell 1, wherein the top of the bottom shell 1 is fixedly connected with a lower circuit 4, the top of the lower circuit 4 is provided with a wire key 5, the top of the wire key 5 is fixedly connected with an elastic sheet 6, the top of the elastic sheet 6 is fixedly connected with a fixed layer 7, the top of the bottom shell 1 is provided with an upper cover 2, a waterproof mechanism is arranged inside the upper cover 2, and the top of the upper cover 2 is fixedly connected with a panel 3;
the waterproof mechanism comprises a key 8, a sealing cover 801, a waterproof rubber ring 802, an air hole 803, a sealing ring 804 and a sealing gasket 805, the sealing cover 801 is fixedly connected to the top of the key 8, the waterproof rubber ring 802 is arranged on the top of the key 8, the air hole 803 is respectively arranged at the axle centers of the key 8 and the sealing cover 801, the sealing ring 804 is fixedly connected to the bottom of the inner wall of the key 8, and the sealing gasket 805 is arranged on the top of the sealing ring 804; lower circuit 4, line key 5, shell fragment 6 and fixed bed 7 have constituted membrane switch's basic function, panel 3 is used for setting up switch function sign characters etc. on panel 3, the effect that sets up waterproof mechanism makes the switch be encapsulated situation when not being pressed when guaranteeing that the switch is felt, can prevent the inside corrosion switch of moisture entering switch, the effect that sets up waterproof rubber ring 802 is inside preventing moisture to flow into the switch by the junction of button 8 and upper cover 2, the effect that sets up sealing washer 804 and seal gasket 805 is making the inside check valve that forms of button 8, prevent moisture entering switch.
A clamping block 101 is fixedly connected to the side wall of the bottom shell 1, a buckle 201 is fixedly connected to the top of the upper cover 2, and the buckle 201 is arranged on the outer wall of the clamping block 101; the latch 101 and the catch 201 are provided to fix the upper cover 2 on the top of the bottom case 1.
The outer wall of the bottom of the key 8 is fixedly connected with a spring strip 102, and one end of the spring strip 102 is fixedly connected with the inner wall of the upper cover 2; the spring strips 102 are provided to spring the keys 8 back after pressing the keys 8.
The button 8 is arranged at the top of the elastic sheet 6, and the waterproof rubber ring 802 is fixedly connected at the joint of the button 8 and the sealing cover 801; the button 8 is used for pressing the elastic sheet 6 downwards, the waterproof rubber ring 802 is fixed with the sealing cover 801 through the button 8, and the button 8 is connected with the sealing cover 801 through threads.
A rubber ring is arranged at the joint of the bottom shell 1 and the upper cover 2, and one side of the waterproof rubber ring 802 is fixedly connected with the inner wall of the upper cover 2; the rubber ring is arranged between the bottom shell 1 and the upper cover 2 and used for sealing to prevent moisture from entering the switch, and one side of the waterproof rubber ring 802 can be connected with the inner wall of the upper cover 2 through glue.
The air hole 803 is respectively arranged at the top and the bottom of the axle center of the sealing ring 804 and the sealing gasket 805, and one end of the air hole 803 is arranged outside the upper cover 2; the air holes 803 are used for connecting the button with the outside when the button is pressed, so that the pressing hand feeling of the card is ensured.
The waterproof rubber ring 802 and the sealing ring 804 are both made of silicon rubber, and the panel 3 is made of a PET material; the waterproof rubber ring 802 and the sealing ring 804 are made of silicon rubber, the softness of the silicon rubber is utilized to ensure the sealing performance of the switch, and the panel 3 can be made of PC or PVC materials besides PET materials.
The key 8 and the sealing cover 801 are made of nylon materials, and the spring plate 6 and the spring strip 102 are made of stainless steel materials; the nylon material is used for setting the key 8 and the sealing cover 801 to ensure the wear resistance and durability of the key 8 and the sealing cover 801, and the stainless steel material is used for setting the spring piece 6 and the spring strip 102 to prevent the spring piece 6 and the spring strip 102 from being oxidized and rusted.
The working principle and the using process of the invention are as follows: when the switch is used, the panel 3 is pressed to enable the sealing cover 801 and the key 8 to be pressed downwards, the elastic sheet 6 is pressed to enable the switch to be communicated, when the switch is pressed, under the action of the sealing ring 804, the sealing gasket 805 and the air hole 803, a one-way passage similar to a one-way valve is formed inside the switch, the switch can be prevented from being rusted due to water entering the inside, then after the panel 3 is loosened, the key 8 and the sealing cover 801 are enabled to be bounced under the action of the spring strip 102, the panel 3 is lifted, and resilience and pressing hand feeling of the panel 3 are guaranteed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A membrane switch with a new structure is characterized in that: the cable connector comprises a bottom shell (1), wherein a lower circuit (4) is fixedly connected to the top of the bottom shell (1), a wire key (5) is arranged on the top of the lower circuit (4), an elastic sheet (6) is fixedly connected to the top of the wire key (5), a fixing layer (7) is fixedly connected to the top of the elastic sheet (6), an upper cover (2) is arranged on the top of the bottom shell (1), a waterproof mechanism is arranged inside the upper cover (2), and a panel (3) is fixedly connected to the top of the upper cover (2);
waterproof mechanism includes button (8), sealed lid (801), waterproof rubber ring (802), gas pocket (803), sealing washer (804) and seal gasket (805), sealed lid (801) fixed connection is at button (8) top, waterproof rubber ring (802) set up at button (8) top, gas pocket (803) set up respectively in button (8) and sealed lid (801) axle center department, sealing washer (804) fixed connection is in button (8) inner wall bottom, seal gasket (805) set up at sealing washer (804) top.
2. The membrane switch of claim 1, wherein: bottom shell (1) lateral wall fixedly connected with fixture block (101), upper cover (2) top fixedly connected with buckle (201), buckle (201) set up at fixture block (101) outer wall.
3. The membrane switch of claim 1, wherein: the outer wall of the bottom of the key (8) is fixedly connected with a spring strip (102), and one end of the spring strip (102) is fixedly connected with the inner wall of the upper cover (2).
4. The membrane switch of claim 1, wherein: the button (8) is arranged at the top of the elastic sheet (6), and the waterproof rubber ring (802) is fixedly connected to the joint of the button (8) and the sealing cover (801).
5. The membrane switch of claim 1, wherein: the connection part of the bottom shell (1) and the upper cover (2) is provided with a rubber ring, and one side of the waterproof rubber ring (802) is fixedly connected with the inner wall of the upper cover (2).
6. The membrane switch of claim 1, wherein: the air holes (803) are respectively arranged at the top and the bottom of the axle centers of the sealing ring (804) and the sealing gasket (805), and one end of each air hole (803) is arranged outside the upper cover (2).
7. The membrane switch of claim 1, wherein: the waterproof rubber ring (802) and the sealing ring (804) are both made of silicon rubber, and the panel (3) is made of PET material.
8. The membrane switch of claim 1, wherein: the key (8) and the sealing cover (801) are made of nylon materials, and the elastic sheet (6) and the spring strip (102) are made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308258.4A CN114093704A (en) | 2021-11-05 | 2021-11-05 | Novel structure membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308258.4A CN114093704A (en) | 2021-11-05 | 2021-11-05 | Novel structure membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114093704A true CN114093704A (en) | 2022-02-25 |
Family
ID=80299181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111308258.4A Pending CN114093704A (en) | 2021-11-05 | 2021-11-05 | Novel structure membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114093704A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001067983A (en) * | 1999-07-21 | 2001-03-16 | Samsung Electro Mech Co Ltd | Key pad assembly for mobile radio communication equipment |
| JP2001076585A (en) * | 1999-09-07 | 2001-03-23 | Matsushita Electric Ind Co Ltd | Membrane switch |
| KR20020083710A (en) * | 2001-04-30 | 2002-11-04 | 이창호 | Tact switch form pcb printed circuit board |
| JP2005340086A (en) * | 2004-05-28 | 2005-12-08 | Fuji Electric Retail Systems Co Ltd | Push button device |
| CN201903848U (en) * | 2010-12-24 | 2011-07-20 | 梁徽湖 | Waterproof keyboard |
| CN202917366U (en) * | 2012-10-29 | 2013-05-01 | 杭州凯克电子有限公司 | Membrane switch for foot tub |
| CN103456536A (en) * | 2013-08-04 | 2013-12-18 | 吴乐敏 | Waterproof touch switch |
| CN212967479U (en) * | 2020-09-25 | 2021-04-13 | 东莞市金冠电子有限公司 | Thin film switch |
-
2021
- 2021-11-05 CN CN202111308258.4A patent/CN114093704A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001067983A (en) * | 1999-07-21 | 2001-03-16 | Samsung Electro Mech Co Ltd | Key pad assembly for mobile radio communication equipment |
| JP2001076585A (en) * | 1999-09-07 | 2001-03-23 | Matsushita Electric Ind Co Ltd | Membrane switch |
| KR20020083710A (en) * | 2001-04-30 | 2002-11-04 | 이창호 | Tact switch form pcb printed circuit board |
| JP2005340086A (en) * | 2004-05-28 | 2005-12-08 | Fuji Electric Retail Systems Co Ltd | Push button device |
| CN201903848U (en) * | 2010-12-24 | 2011-07-20 | 梁徽湖 | Waterproof keyboard |
| CN202917366U (en) * | 2012-10-29 | 2013-05-01 | 杭州凯克电子有限公司 | Membrane switch for foot tub |
| CN103456536A (en) * | 2013-08-04 | 2013-12-18 | 吴乐敏 | Waterproof touch switch |
| CN212967479U (en) * | 2020-09-25 | 2021-04-13 | 东莞市金冠电子有限公司 | Thin film switch |
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