Membrane switch with comfortable touch feeling

Abstract

The utility model discloses a membrane switch with comfortable touch feeling, which comprises a panel layer, an upper circuit layer, a laminated layer, a lower circuit layer and a back adhesive layer, the upper circuit layer is provided with a pressing piece and a covering piece, the covering piece is arranged at the upper part of the pressing piece, the lower surface of the covering piece is in contact with the upper surface of the pressing piece, the upper circuit layer is provided with a group of annular steps, and the annular steps are arranged on the back adhesive layer. An annular groove matched with the annular step is formed in the periphery of the covering part, and the covering part is made of silica gel or soft rubber materials. The covering part with a certain damping and buffering effect is arranged on the pressing piece in a covering mode, and the covering part is made of silica gel or rubber materials, so that part of bouncing force of the metal pressing piece can be effectively absorbed through the damping and buffering characteristics of the covering part in the using process; and the force transmitted to the fingers of the user is reduced, so that the phenomenon that fatigue is easy to occur in the long-term input process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to membrane switches, in particular to a membrane switch with comfortable touch. Background Art

[0002] Membrane switch is a system that integrates key functions, indicating elements, and instrument panels. It is composed of four parts: panel, upper circuit, isolation layer, and lower circuit. When the membrane switch is pressed, the contact of the upper circuit deforms downward and contacts the plate of the lower circuit. After the finger is released, the contact of the upper circuit rebounds, the circuit is disconnected, and the loop triggers a signal. Membrane switches have the characteristics of rigorous structure, beautiful appearance, good sealing, moisture resistance, and long service life. They are widely used in electronic communications, electronic measurement instruments, industrial control, medical equipment, automotive industry, smart toys, household appliances and other fields.

[0003] However, in the prior art, a metal pressing sheet is used in a membrane switch, and the membrane switch panel layer is usually made of polyester material, which has high hardness and elasticity, so it feels relatively hard to the touch. This makes the pressing feel relatively hard, and in scenarios where long-term use is required, such as when the machining program needs to be manually input into the equipment when machining small batches of non-standard parts. This can easily cause fatigue in users. Therefore, further improvements are needed to provide a membrane switch with a comfortable touch. Utility Model Content

[0004] A technical problem solved

[0005] The technical problem to be solved by the utility model is: However, in the prior art, a metal pressing piece is used in a membrane switch, and the membrane switch panel layer is usually made of polyester material, which has high hardness and elasticity, so the touch is relatively hard. This makes the pressing feel relatively hard, and in scenarios where long-term use is required, such as when the machining program needs to be manually input into the equipment during the mechanical machining of small batches of non-standard parts, it will cause the user to feel fatigued. Therefore, further improvement is needed to provide a membrane switch with a comfortable touch.

[0006] Second technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a membrane switch with comfortable touch, comprising a panel layer, an upper circuit layer, an interlayer, a lower circuit layer and a back glue layer, the interlayer layer is arranged between the upper circuit layer and the lower circuit layer, the back glue layer is arranged at the lower part of the lower circuit layer for fixing the membrane switch to an external device, the panel layer is arranged at the uppermost layer, a pressing sheet and a covering member are arranged on the upper circuit layer, the covering member is arranged on the upper part of the pressing sheet, and the lower surface of the covering member contacts the upper surface of the pressing sheet, a group of annular steps are arranged on the upper circuit layer, and an annular groove matching the annular steps is arranged on the outer periphery of the covering member, and the covering member is made of silicone or soft rubber.

[0008] Furthermore, the annular groove and the annular step are connected by interference fit.

[0009] Furthermore, a first surface adhesive in a rectangular shape and a second surface adhesive in an elliptical shape are provided between the panel layer and the upper circuit layer.

[0010] Furthermore, the outer contour size of the first surface adhesive is not greater than the outer contour size of the panel layer and the upper circuit layer.

[0011] Furthermore, a plurality of second surface adhesives are provided and evenly distributed.

[0012] Furthermore, a plurality of rectangular hollows are provided on the adhesive backing layer, and the plurality of rectangular hollows are evenly arranged on the adhesive backing layer.

[0013] Furthermore, a group of notches are provided on two short sides of the adhesive layer.

[0014] Furthermore, there are multiple pressing pieces and multiple covering pieces.

[0015] Three beneficial effects

[0016] The utility model provides a membrane switch with comfortable touch, which has the following beneficial effects:

[0017] 1. A cover with a certain shock-absorbing and buffering effect is set on the pressing piece, and the cover is made of silicone or rubber material. When in use, the shock-absorbing and buffering characteristics of the cover can effectively absorb part of the force of the metal pressing piece bouncing up, reducing the force transmitted to the user's fingers, thereby avoiding fatigue during long-term input.

[0018] 2. The panel layer and the upper circuit layer are connected with the first surface adhesive and the second surface adhesive. This scattered surface adhesive connection method can not only ensure the firmness of the connection between the panel layer and the upper circuit layer, but also makes it easier to remove the panel layer than the traditional whole piece surface adhesive connection, which is convenient for the maintenance of the membrane switch.

[0019] 3. The covers are connected by interference fit of annular grooves and annular steps. When individual covers are damaged during later use, they can be replaced individually, which reduces the cost of use.

[0020] 4. Four notches are set on the adhesive layer to facilitate positioning when installing the membrane switch, facilitate installation work, and improve installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the utility model;

[0022] Figure 2 It is a schematic structural diagram of the pressing sheet and the covering member of the utility model.

[0023] In the figure: 1-panel layer, 2-upper circuit layer, 3-interlayer, 4-lower circuit layer, 5-back glue layer, 6-pressing sheet, 7-covering piece, 8-annular step, 9-annular groove, 10-first side glue, 11-second side glue, 12-rectangular hollow, 13-notch. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. In the description of the utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] See also Figure 1 to Figure 2The utility model provides a technical solution: a membrane switch with comfortable touch, comprising a panel layer 1, an upper circuit layer 2, an interlayer 3, a lower circuit layer 4 and a back glue layer 5, wherein the interlayer 3 is arranged between the upper circuit layer 2 and the lower circuit layer 4, the back glue layer 5 is arranged at the lower part of the lower circuit layer 4 for fixing the membrane switch to an external device, the panel layer 1 is arranged at the uppermost layer, and a first surface glue 10 in a rectangular shape and a second surface glue 11 in an elliptical shape are also arranged between the panel layer 1 and the upper circuit layer 2, the second surface glue 11 is provided with a plurality of and evenly distributed, and the outer contour size of the first surface glue 10 is not greater than the outer contour size of the panel layer 1 and the upper circuit layer 2. The panel layer 1 and the upper circuit layer 2 are connected by the first surface glue 10 and the second surface glue 11, and this scattered surface glue connection method can not only ensure the firmness of the connection between the panel layer 1 and the upper circuit layer 2, but also make it easier to remove the panel layer 1 compared with the traditional whole-piece surface glue connection, so as to facilitate the maintenance of the membrane switch.

[0026] The upper circuit layer 2 is provided with a pressing sheet 6 and a covering member 7, and there are multiple pressing sheets 6 and covering members 7. The covering member 7 is arranged on the upper part of the pressing sheet 6, and the lower surface of the covering member 7 contacts the upper surface of the pressing sheet 6. A group of annular steps 8 are arranged on the upper circuit layer 2, and an annular groove 9 matching the annular step 8 is arranged on the outer periphery of the covering member 7, and the annular groove 9 is connected to the annular step 8 by interference fit. The covering member 7 is made of silicone or soft rubber. By covering the pressing sheet 6 with a certain shock-absorbing and buffering effect, the covering member 7 is made of silicone or rubber. When in use, the shock-absorbing and buffering characteristics of the covering member 7 can effectively absorb part of the force of the metal pressing sheet 6 to bounce up, reduce the transmission of this part of the force to the user's fingers, and avoid the phenomenon of fatigue that is easy to occur during long-term input. The covering member 7 is connected by the interference fit connection between the annular groove 9 and the annular step 8. When individual covering members 7 are damaged during later use, they can be replaced separately, reducing the cost of use.

[0027] Specifically, a plurality of rectangular hollows 12 are provided on the adhesive layer 5, and the plurality of rectangular hollows 12 are evenly arranged on the adhesive layer 5. A set of notches 13 are provided on both short sides of the adhesive layer 5. Four notches 13 are provided on the adhesive layer 5, which facilitates positioning when installing the membrane switch, facilitates installation work, and improves installation efficiency.

[0028] Working principle: First, when installing, the notch 13 set on the adhesive layer 5 is used for positioning to assist the installer to more accurately install the membrane switch to the correct position. During use, a cover 7 with a certain shock-absorbing and buffering effect is set on the pressing sheet 6. The cover 7 is made of silicone or rubber. When in use, the shock-absorbing and buffering characteristics of the cover 7 can effectively absorb part of the force of the metal pressing sheet 6 to reduce the force transmitted to the user's fingers, thereby avoiding fatigue during long-term input. The cover 7 is connected by an interference fit connection between the annular groove 9 and the annular step 8. When individual covers 7 are damaged during later use, they can be replaced separately, reducing the cost of use.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A membrane switch with a comfortable touch, It is characterized in that The invention comprises a panel layer (1), an upper circuit layer (2), an interlayer (3), a lower circuit layer (4) and a back glue layer (5), wherein the interlayer (3) is arranged between the upper circuit layer (2) and the lower circuit layer (4), the back glue layer (5) is arranged at the lower part of the lower circuit layer (4) for fixing the membrane switch to an external device, the panel layer (1) is arranged at the uppermost layer, the upper circuit layer (2) is provided with a pressing sheet (6) and a covering member (7), the covering member (7) is arranged at the upper part of the pressing sheet (6), and the lower surface of the covering member (7) is in contact with the upper surface of the pressing sheet (6), the upper circuit layer (2) is provided with a group of annular steps (8), the outer periphery of the covering member (7) is provided with an annular groove (9) matching the annular steps (8), and the covering member (7) is made of silicone or soft rubber.

2. A membrane switch with a comfortable touch according to claim 1, Features: The annular groove (9) is connected to the annular step (8) by means of interference fit.

3. A membrane switch with a comfortable touch according to claim 1, Features: A first surface adhesive (10) in a rectangular shape and a second surface adhesive (11) in an elliptical shape are also provided between the panel layer (1) and the upper circuit layer (2).

4. A membrane switch with a comfortable touch according to claim 3, Features: The outer contour dimensions of the first surface adhesive (10) are no greater than the outer contour dimensions of the panel layer (1) and the upper circuit layer (2).

5. A membrane switch with comfortable touch according to claim 3, Features: The second surface adhesive (11) is provided in plurality and is evenly distributed.

6. A membrane switch with a comfortable touch according to claim 1, Features: The adhesive backing layer (5) is provided with a plurality of rectangular hollows (12), and the plurality of rectangular hollows (12) are evenly arranged on the adhesive backing layer (5).

7. A membrane switch with comfortable touch according to claim 1, Features: A group of notches (13) are provided on the two short sides of the adhesive backing layer (5).

8. A membrane switch with comfortable touch according to claim 1, Features: The pressing piece (6) and the covering piece (7) are both provided in plurality.

Images