CN210296188U

CN210296188U - Membrane switch convenient to clean

Info

Publication number: CN210296188U
Application number: CN201921545144.XU
Authority: CN
Inventors: 张爱民
Original assignee: Xiamen Mingcai Electronic Technology Co Ltd
Current assignee: Xiamen Mingcai Electronic Technology Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-04-10
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a membrane switch convenient to it is clean belongs to on-off control technical field, and its technical scheme main points are including panel layer, last circuit layer, isolation layer and the lower circuit layer that arranges in proper order, one side that panel layer kept away from last circuit layer is provided with the protective layer, just panel layer is provided with the joint groove along its edge, protective layer week side be provided with the joint arch of joint groove gomphosis, just be provided with between panel layer and the protective layer and be used for fixing the locking structure on panel layer with the protective layer, the utility model discloses have can conveniently dismantle, easy clear effect.

Description

Membrane switch convenient to clean

Technical Field

The utility model belongs to the technical field of on-off control, more specifically say that it relates to a membrane switch convenient to it is clean.

Background

The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel. The membrane switch has the advantages of rigorous structure, attractive appearance and good sealing property. Has the characteristics of moisture resistance, long service life and the like. The method is widely applied to the fields of electronic communication and electronic measurement instruments, industrial control, medical equipment, automobile industry, intelligent toys, household appliances and the like.

The membrane switch in the prior art generally comprises six parts, namely a panel layer, a surface adhesive layer, an upper circuit layer, an isolation layer, a lower circuit layer and a ground adhesive layer which are sequentially arranged, wherein a key area is arranged on the panel layer. When the key on the key area is pressed, the contact of the upper circuit deforms downwards to be in contact with the polar plate of the lower circuit for conduction, after the finger loosens, the contact of the upper circuit rebounds, the circuit is disconnected, and the loop triggers a signal.

Similar to the above-mentioned membrane switch in the prior art, the button area is arranged on the panel layer, and the user is assisted to click the corresponding button through the identification, so as to realize the function corresponding to the button, however, the membrane switch is mostly used for equipment in a production environment, in a long-term use process, sweat stains on hands of an operator and influences of surrounding environment factors can both leave stains on the panel layer, and a common membrane switch can only erase stains in a wiping mode and the like, and cannot clean some specific positions, so that bacteria are easily bred, and adverse effects are generated on the health of the operator, and therefore, a space to be improved still exists.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a membrane switch convenient to it is clean, its advantage lies in can conveniently dismantling, easily clean.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a membrane switch convenient to it is clean, includes panel layer, last circuit layer, isolation layer and the lower circuit layer that arranges in proper order, one side that the upper circuit layer was kept away from on the panel layer is provided with the protective layer, just the panel layer is provided with the joint groove along its edge, protective layer week side is provided with the joint arch of joint groove gomphosis, just be provided with between panel layer and the protective layer and be used for fixing the locking structure on the panel layer with the protective layer.

By adopting the technical scheme, in the process of using the membrane switch, the clamping bulge on the protective layer is mutually embedded with the clamping groove on the panel layer to ensure that the protective layer is attached to the panel layer, and then the protective layer is further mutually fixed with the panel layer through the locking structure, so that the protective layer can be attached to the surface of the panel layer to protect the panel layer; after the protective layer is used for a period of time, some stains can be remained on the surface of the protective layer, and at the moment, the protective layer can be detached to perform cleaning work such as sterilization and the like only by releasing the locking structure and separating the protective layer from the panel layer.

From this, install the protective layer on the panel layer through the detachable mode, can enough make things convenient for the installation and the demolition of protective layer, also can conveniently carry out solitary cleanness to the protective layer, realize protection and cleaning work to membrane switch.

The utility model discloses further set up to: the locking structure comprises a plurality of cylindrical fastening pieces, fastening grooves which are arranged on the panel layer and are embedded with the fastening pieces, and mounting holes which are arranged on the protective layer and are used for the fastening pieces to pass through, wherein countersunk heads which sink into the mounting holes are arranged at the ends, far away from the panel layer, of the fastening pieces.

By adopting the technical scheme, when the protective layer is fixed, the clamping protrusions on the protective layer are embedded with the clamping grooves on the panel layer, the mounting holes correspond to the fastening grooves at the moment, then the fastening piece penetrates through the mounting holes and is embedded into the fastening grooves, the countersunk head cap of the fastening piece is sunk in the mounting holes, and the protective layer is fixed through the friction force among the fastening piece, the mounting holes and the fastening grooves; when the protective layer is detached, the protective layer can be conveniently detached for cleaning only by taking out the fastening piece.

The utility model discloses further set up to: the countersunk head cap is characterized in that a first thin strip is arranged on the countersunk head cap, and a first adhesive layer is arranged on one side surface of one end, far away from the countersunk head cap, of the first thin strip.

By adopting the technical scheme, the first thin strip can be conveniently pulled out of the fastening groove and the mounting hole, so that the protective layer can be more conveniently and quickly detached; wherein, the setting of first glue film can take the bonding on the surface of protective layer with first area to with the surface laminating of first area and protective layer, can reduce the space from this and occupy, prevent that first area from influencing operating personnel to membrane switch's operation.

The utility model discloses further set up to: the clamping groove comprises a side face and a bottom face, the side face is obliquely arranged, and the lower end of the side face faces the interior of the panel layer.

Through adopting above-mentioned technical scheme, the side slope in joint groove is towards panel layer inside, can form stable joint structure with the joint arch from this, makes the protective layer joint more steadily on the panel layer, reduces the protective layer and breaks away from the probability on panel layer because of the exogenic action, increases holistic stability.

The utility model discloses further set up to: the bottom surface is provided with a plurality of positioning bulges, and the clamping bulges are provided with positioning holes embedded with the positioning bulges.

Through adopting above-mentioned technical scheme, the setting of location arch and locating hole can provide the guide when joint groove and the protruding gomphosis of joint, makes the installation on protective layer and panel layer more accurate.

The utility model discloses further set up to: the positioning bulge is hemispherical.

Through adopting above-mentioned technical scheme, it is protruding to be hemispherical location, has smooth transition surface, can make the gomphosis process of joint arch and joint groove more stable.

The utility model discloses further set up to: and a second thin strip is arranged on one side of the protective layer, which is far away from the panel layer, and a second adhesive layer is arranged on one side surface of one end, which is far away from the protective layer, of the second thin strip.

Through adopting above-mentioned technical scheme, the setting of taking and the second glue film is taken to the second, can take the protective layer to pull out through the second when dismantling the protective layer, and takes the laminating in the protective layer surface with the second through the second glue film under operating condition, reduces the space and occupies.

The utility model discloses further set up to: the protective layer is a PE layer or a silica gel layer.

Through adopting above-mentioned technical scheme, PE layer or silica gel layer have good elasticity, easily warp, consequently can make the installation and the dismantlement process on protective layer and panel layer convenient and fast more.

To sum up, the utility model has the advantages of it is following:

1. by arranging the clamping groove, the clamping protrusion and the locking structure, the protective layer can be detachably arranged on the panel layer, so that the protective layer can be conveniently arranged and detached, the protective layer can be conveniently and independently cleaned, and the protection and cleaning work of the membrane switch is realized;

2. the first thin strip is arranged, so that the fastener can be conveniently pulled out from the fastening groove and the mounting hole, and the protective layer can be more conveniently and quickly detached; the first adhesive layer is arranged, so that the first thin strip can be bonded on the surface of the protective layer, the first thin strip is attached to the surface of the protective layer, the space occupation can be reduced, and the first thin strip is prevented from influencing the operation of an operator on the membrane switch;

3. through setting up location arch and locating hole, can provide the guide when joint groove and the protruding gomphosis of joint, make the installation on protective layer and panel layer more accurate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of an exploded structure of the present embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic sectional view showing the structure of the present embodiment;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

fig. 6 is an enlarged schematic view of a portion C in fig. 2.

Description of reference numerals: 1. a panel layer; 2. an upper circuit layer; 3. an isolation layer; 4. a lower circuit layer; 5. a protective layer; 11. a key area; 12. a clamping groove; 51. clamping the bulges; 52. a second thin strip; 61. a fastener; 62. a fastening groove; 63. mounting holes; 121. positioning the projection; 122. a side surface; 123. a bottom surface; 521. a second adhesive layer; 611. a countersunk head cap; 612. a first thin strip; 613. a first glue layer; 631. countersunk head groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A membrane switch convenient to clean, as shown in fig. 1 and 2, comprises a panel layer 1, an upper circuit layer 2, an isolation layer 3 and a lower circuit layer 4 which are sequentially arranged, the whole body is in a cuboid shape, surface glue is coated between the panel layer 1 and the upper circuit layer 2 and on one side of the lower circuit layer 4 far away from the isolation layer 3 and used for bonding the panel layer 1 or installing the whole membrane switch, and a key area 11 is arranged on the panel layer 1; the side of the panel layer 1 far away from the upper circuit layer 2 is detachably connected with a protective layer 5.

As shown in fig. 2 and 3, the panel layer 1 is provided with a clamping groove 12 along the edge thereof, the peripheral side of the protective layer 5 extends towards one side of the panel layer 1 to form a clamping protrusion 51 embedded with the clamping groove 12, and a locking structure for fixing the protective layer 5 on the panel layer 1 is installed between the panel layer 1 and the protective layer 5.

As shown in fig. 3, specifically, the locking structure includes a plurality of cylindrical fastening members 61, fastening grooves 62 that are provided on the panel layer 1 and are engaged with the fastening members 61, and mounting holes 63 that are provided on the protective layer 5 and are used for the fastening members 61 to pass through, in this embodiment, the number of the fastening members 61, the fastening grooves 62, and the mounting holes 63 is four, and the fastening members 61, the fastening grooves 62, and the mounting holes 63 are symmetrically distributed at four corner positions of the whole membrane switch, a cylindrical countersunk head cap 611 is fixed at one end of the fastening member 61 away from the panel layer 1, the diameter of the countersunk head cap 611 is larger than that of the fastening member 61, a countersunk head groove 631 into which the countersunk head cap 611 is embedded is provided in the mounting hole 63, and when the countersunk head cap 611 and the fastening member 61 are installed in the mounting hole 63 and the fastening grooves 62, a side surface. When the protective layer 5 is fixed, firstly, the clamping protrusions 51 on the protective layer 5 are embedded with the clamping grooves 12 on the panel layer 1, the mounting holes 63 correspond to the fastening grooves 62 at the moment, then the fasteners 61 penetrate through the mounting holes 63 and are embedded into the fastening grooves 62, the countersunk caps 611 of the fasteners 61 are embedded with the countersunk grooves 631, and the protective layer 5 is fixed through friction force among the fasteners 61, the mounting holes 63 and the fastening grooves 62; when the protective layer 5 is removed, the protective layer 5 can be conveniently removed for cleaning only by taking out the fastener 61.

As shown in fig. 4 and 5, a first strip 612 in a long strip shape is fixed on one side of the countersunk head cap 611 on the surface of the protective layer 5, one end of the first strip 612, which is far away from the countersunk head cap 611, is coated with a first adhesive layer 613 on the surface of one side of the first strip, and a certain distance is formed between the first adhesive layer 613 and the end of the first strip 612, so that the fastener 61 can be conveniently pulled out from the fastening groove 62 and the mounting hole 63 by the first strip 612 in a hand-pulling manner, thereby the detachment process of the protective layer 5 is more convenient and faster; the first adhesive layer 613 is arranged to adhere the first thin strip 612 to the surface of the protective layer 5, so that the first thin strip 612 is adhered to the surface of the protective layer 5, thereby reducing space occupation and preventing the first thin strip 612 from influencing the operation of the membrane switch by an operator, and a gap between the first adhesive layer 613 and the end of the first thin strip 612 can form a strip which is adhered but not adhered, so that the first thin strip 612 can be found conveniently, and the first thin strip 612 and the first adhesive layer 613 can be pulled up together by fingers; the first thin strip 612 may be made of a transparent material, such as PE, so as to further reduce the influence of the first thin strip 612 on the operation process of the membrane switch.

As shown in fig. 5, the engaging groove 12 includes a side surface 122 and a bottom surface 123, and the side surface 122 is obliquely divided and its lower end faces the inside of the panel layer 1. The side 122 slope of joint groove 12 is inside towards panel layer 1, can form stable joint structure with joint arch 51 from this, makes protective layer 5 joint more steadily on panel layer 1, reduces protective layer 5 and breaks away from panel layer 1's probability because of the exogenic action, increases holistic stability.

As shown in fig. 5, a plurality of positioning protrusions 121 are uniformly fixed on the bottom surface 123, and positioning holes (not shown) having the same number and shape as the positioning protrusions 121 are formed on the clamping protrusion 51, in this embodiment, the positioning protrusions 121 and the positioning holes are hemispherical. Can provide the guide when joint groove 12 and the protruding 51 gomphosis of joint through location arch 121 and locating hole, make the installation of protective layer 5 and panel layer 1 more accurate, and hemispherical location arch 121 has smooth transition surface, can make the protruding 51 gomphosis process with joint groove 12 of joint more stable.

With reference to fig. 2 and 6, the second strip 52 having a long shape is symmetrically fixed on the side of the protection layer 5 away from the panel layer 1, one side surface of the second strip 52 away from the protection layer 5 is coated with the second adhesive layer 521, which is the same as the first strip 612 and the first adhesive layer 613, and the second strip 52 and the second adhesive layer 521 can pull out the protection layer 5 through the second strip 52 when the protection layer 5 is detached, and attach the second strip 52 to the surface of the protection layer 5 through the second adhesive layer 521 in an operating state, so that the space occupation is reduced.

Further, the protective layer 5 is a PE layer or a silica gel layer. The PE layer or the silica gel layer has good elasticity and is easy to deform, so that the installation and the disassembly processes of the protective layer 5 and the panel layer 1 can be more convenient and faster.

The utility model discloses a working process and beneficial effect as follows: in the process of using the membrane switch, firstly, the clamping protrusions 51 on the protective layer 5 are mutually embedded with the clamping grooves 12 on the panel layer 1, the side surfaces 122 obliquely arranged on the clamping grooves 12 can guide the corresponding surfaces on the clamping protrusions 51, the protective layer 5 is stably clamped on the panel layer 1, then the locking piece penetrates into the mounting hole 63 and the fastening groove 62, the countersunk head cap 611 of the locking piece is flush with the surface of the protective layer 5, at the moment, the whole locking piece is sunk in the mounting hole 63, the protective layer 5 can be further fixed on the panel layer 1, and the panel layer 1 is protected; after the protective layer 5 is used for a period of time, some stains may remain on the surface of the protective layer 5, and at this time, the locking member is pulled out from the mounting hole 63 and the locking groove only by the first thin strip 612 attached to the protective layer 5, and then the protective layer 5 is pulled out from the panel layer 1 by the second thin strip 52, so that the separation between the panel layer 1 and the protective layer 5 is realized, and the cleaning work such as sterilization of the protective layer 5 is performed.

To sum up, through joint groove 12, joint arch 51 and locking structure, make and dismantle between protective layer 5 and the panel layer 1, can enough make things convenient for the installation of protective layer 5 and demolish from this, also can conveniently carry out solitary cleanness to protective layer 5, realize protection and cleaning work to membrane switch.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a membrane switch convenient to it is clean, includes panel layer (1), last circuit layer (2), isolation layer (3) and lower circuit layer (4) that arrange in proper order, its characterized in that: one side that upper circuit layer (2) were kept away from in panel layer (1) is provided with protective layer (5), just panel layer (1) is provided with joint groove (12) along its edge, protective layer (5) week side is provided with joint arch (51) with joint groove (12) gomphosis, just be provided with between panel layer (1) and protective layer (5) and be used for fixing the locking structure on panel layer (1) with protective layer (5).

2. A membrane switch for facilitating cleaning according to claim 1, wherein: the locking structure comprises a plurality of cylindrical fastening pieces (61), fastening grooves (62) which are arranged on the panel layer (1) and are embedded with the fastening pieces (61), and mounting holes (63) which are arranged on the protective layer (5) and are used for the fastening pieces (61) to pass through, wherein one ends, far away from the panel layer (1), of the fastening pieces (61) are provided with countersunk caps (611) which sink in the mounting holes (63).

3. A membrane switch for facilitating cleaning according to claim 2, wherein: the countersunk head cap (611) is provided with a first thin strip (612), and one end, away from the countersunk head cap (611), of the first thin strip (612) is provided with a first glue layer (613) on one side surface.

4. A membrane switch for facilitating cleaning according to claim 1, wherein: the clamping groove (12) comprises a side surface (122) and a bottom surface (123), wherein the side surface (122) is obliquely arranged, and the lower end of the side surface faces the interior of the panel layer (1).

5. The membrane switch of claim 4, wherein: the clamping device is characterized in that a plurality of positioning protrusions (121) are arranged on the bottom surface (123), and positioning holes embedded with the positioning protrusions (121) are formed in the clamping protrusions (51).

6. The membrane switch of claim 5, wherein: the positioning bulge (121) is hemispherical.

7. A membrane switch for facilitating cleaning according to claim 1, wherein: one side of the protective layer (5) far away from the panel layer (1) is provided with a second thin strip (52), and one end of the second thin strip (52) far away from the protective layer (5) is provided with a second adhesive layer (521) on one side surface.

8. A membrane switch for facilitating cleaning according to claim 1, wherein: the protective layer (5) is a PE layer or a silica gel layer.