CN219497608U - Durable membrane switch with high sealing performance - Google Patents

Abstract

The utility model relates to a durable membrane switch with high sealing performance, which comprises a bottom plate, a membrane switch main body, a protective structure and an integrated circuit board, wherein a surface adhesive layer is arranged in the inner structure of the bottom plate, an isolation layer is arranged on one side of the surface adhesive layer, an insulating layer is arranged on the other side of the isolation layer, a membrane switch main body is arranged at the top end of the bottom plate, the protective structure is arranged in the membrane switch main body, when the membrane switch main body is subjected to external pressure by utilizing the protective structure arranged in the membrane switch main body, two sliding blocks in a sliding groove in the fixed plate can be forced to move, so that a rotating rod arranged at one end of the sliding block is driven to rotate, and meanwhile, the external pressure can be opposite-charged by utilizing a reset spring arranged between the rotating rods, so that the membrane switch main body can be normally used, and the service time of the membrane switch main body is further prolonged.

Description

Durable membrane switch with high sealing performance

Technical Field

The utility model relates to the technical field of membrane switches, in particular to a durable membrane switch with high sealing performance.

Background

The membrane switch is an operating system integrating key functions, indication elements and instrument panels. The circuit consists of a panel, an upper circuit, an isolation layer and a lower circuit. In order to touch the on normally open switch, the upper and lower contacts of the membrane switch are in an off state under normal conditions. When the membrane switch is pressed down, the contact of the upper circuit is deformed downwards to be contacted and conducted with the polar plate of the lower circuit, after the finger is loosened, the contact of the upper circuit is rebounded, the circuit is disconnected, and a signal is triggered by the loop. The membrane switch has the advantages of strict 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, electronic measuring instruments, industrial control, medical equipment, automobile industry, intelligent toys, household appliances and the like.

In order to strengthen the use effect of the conventional membrane switch, the strength of the used material is low, which causes certain defects, firstly, because the sealing performance of the thread head of the membrane switch is poor, dust impurities are easy to enter the membrane switch when the product is used, the normal use of the product is affected, and the structure of a circuit layer is relatively simple, and meanwhile, the circuit layer is also lack of protection, so that the reliability in the complex environment and long-term use process is poor, the service life is short, and meanwhile, the membrane switch is also easily affected by external acting force when in use, so that the use of internal elements is affected, and in order to solve the problems, we propose a durable membrane switch with high sealing performance.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a durable membrane switch with high tightness.

In order to achieve the above purpose, the utility model provides a durable membrane switch with high tightness, which comprises a bottom plate, a membrane switch main body, a protection structure and an integrated circuit board, wherein a surface adhesive layer is arranged in the inner structure of the bottom plate, one side of the surface adhesive layer is provided with an isolation layer, the other side of the isolation layer is provided with an insulating layer, the top end of the bottom plate is provided with the membrane switch main body, the inside of the membrane switch main body is provided with the protection structure, the inner structure of the protection structure is provided with a fixed plate, the inside of the fixed plate is provided with a sliding groove, the sliding groove is internally and slidingly connected with sliding blocks, two sliding blocks are arranged, one ends of the sliding blocks are respectively provided with a first rotating shaft, the other ends of the first rotating shafts are respectively provided with a rotating rod, a reset spring is arranged between the rotating rods, and the inside of the membrane switch main body is provided with the integrated circuit board.

Preferably, a touch panel is arranged at the top end of the membrane switch main body, and the touch panel is electrically connected with the integrated electric plate.

Preferably, the other ends of the rotating rods are all rotatably connected with the same second rotating shaft.

Preferably, two protection structures are arranged and are uniformly distributed on two sides of the inside of the membrane switch main body.

Preferably, the surface adhesive layer is made of acrylic adhesive, and the insulating layer is made of insulating ink.

Preferably, the isolating layer is made of mica.

Preferably, the material of the membrane switch main body is composite resin.

Preferably, two return springs are provided.

Compared with the prior art, the utility model has the beneficial effects that:

through the protective structure who sets up, can strengthen the holistic intensity of device, when using, through the inside protective structure who sets up of membrane switch main part, utilize the fixed plate that sets up in its inner structure, when the membrane switch main part received external pressure, can force two sliding blocks in the inside sliding tray of fixed plate and remove to drive the dwang that sliding block one end set up and rotate, simultaneously, utilize reset spring who sets up between the dwang, can be to the external pressure hedging, in order to guarantee that the membrane switch main part can normally use, and then increase the live time of membrane switch main part.

Through the bottom plate that sets up, can realize the inside high leakproofness of membrane switch main part, when using, through the face glue film that sets up in the bottom plate inner structure, can be connected bottom plate and membrane switch main part to prevent that external dust from getting into inside the membrane switch main part and causing the influence to the circuit, simultaneously, utilize the insulating layer that sets up in the bottom plate inner structure, can prevent effectively that the condition of electric leakage from appearing, through this kind of mode, can solve the problem that exists among the prior art effectively.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments of the present utility model, it being apparent that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without the exercise of inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural view of a durable thin film switch with high sealing performance according to the present utility model.

Fig. 2 is a schematic diagram of a temporal structure of a durable membrane switch with high tightness according to the present utility model.

Fig. 3 is a cross-sectional view of a membrane switch body in a durable membrane switch with high sealability according to the present utility model.

Fig. 4 is a schematic view of the internal material structure of the base plate in the durable thin film switch with high sealing performance.

Reference numerals illustrate:

1. a bottom plate; 101. a surface adhesive layer; 102. an isolation layer; 103. an insulating layer; 2. a membrane switch body; 3. a touch panel; 4. a protective structure; 401. a fixing plate; 402. a sliding groove; 403. a sliding block; 404. a first rotation shaft; 405. a rotating lever; 406. a return spring; 407. a second rotation shaft; 5. an integrated circuit board.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Referring to fig. 1-4, the utility model provides a durable membrane switch with high tightness, which comprises a bottom plate 1, a membrane switch main body 2, a protection structure 4 and an integrated electric plate 5, wherein a surface adhesive layer 101 is arranged in the inner structure of the bottom plate 1, an isolation layer 102 is arranged on one side of the surface adhesive layer 101, an insulating layer 103 is arranged on the other side of the isolation layer 102, a membrane switch main body 2 is arranged at the top end of the bottom plate 1, the protection structure 4 is arranged in the inner structure of the membrane switch main body 2, a fixed plate 401 is arranged in the inner structure of the protection structure 4, a sliding groove 402 is arranged in the fixed plate 401, sliding blocks 403 are connected in the sliding groove 402 in a sliding manner, two sliding blocks 403 are arranged in the sliding blocks 403, a reset spring 406 is arranged between the two sliding blocks 403, the other ends of the first rotating shafts 404 are respectively provided with a rotating rod 405, the reset spring 406 is arranged between the rotating rods 405, the inner part of the membrane switch main body 2 is provided with the integrated electric plate 5, when the membrane switch main body 2 is subjected to external pressure, the two sliding blocks 403 in the inner sliding groove 402 can be forced to move, and the rotating blocks 403 are driven to rotate, and the rotating rods 405 arranged at one end of the rotating rods, and the rotating rods 405 can be normally pressed by the membrane switch 2.

Referring to fig. 1, a touch panel 3 is disposed at the top of the membrane switch body 2, and the touch panel 3 is electrically connected to an integrated circuit board 5.

Referring to fig. 3, the other ends of the rotating rods 405 are rotatably connected to the same second rotating shaft 407.

Referring to fig. 2, two protection structures 4 are provided, the two protection structures 4 are uniformly distributed on two sides of the inside of the membrane switch main body 2, and by using the fixing plate 401 arranged in the internal structure of the protection structures, when the membrane switch main body 2 is subjected to external pressure, two sliding blocks 403 in the sliding groove 402 inside the fixing plate 401 can be forced to move, so as to drive a rotating rod 405 arranged at one end of the sliding block 403 to rotate, and meanwhile, by using a return spring 406 arranged between the rotating rods 405, the external pressure can be offset, so that the membrane switch main body 2 can be normally used.

Referring to fig. 4, the surface adhesive layer 101 is made of acrylic adhesive, the insulating layer 103 is made of insulating ink, and the surface adhesive layer 101 arranged in the internal structure of the bottom plate 1 can connect the bottom plate 1 with the membrane switch main body 2 to prevent external dust from entering the membrane switch main body 2 to affect the circuit, and meanwhile, the insulating layer 103 arranged in the internal structure of the bottom plate 1 can effectively prevent the occurrence of electric leakage.

Referring to fig. 4, the isolation layer 102 is made of mica.

Referring to fig. 2, the membrane switch body 2 is made of a composite resin.

Referring to fig. 3, two return springs 406 are provided, and the return springs 406 provided between the rotating rods 405 are used to counter the external pressure, so as to ensure that the membrane switch main body 2 can be normally used, and further increase the service time of the membrane switch main body 2.

During the use, can strengthen the holistic intensity of device through the protective structure 4 that sets up, when using, through the protective structure 4 that membrane switch main part 2 is inside to be set up, utilize the fixed plate 401 that sets up in its inner structure, when membrane switch main part 2 receives external pressure, can force two sliding blocks 403 in the inside sliding tray 402 of fixed plate 401 to move, thereby drive dwang 405 that sliding block 403 one end set up and rotate, simultaneously, utilize reset spring 406 that sets up between the dwang 405, can carry out the offset to external pressure, so as to guarantee membrane switch main part 2 can normal use, and then increase membrane switch main part 2's live time, through the bottom plate 1 that sets up, can realize the inside high leakproofness of membrane switch main part 2, when using, through the face glue film 101 that sets up in the bottom plate 1 inner structure, can be connected bottom plate 1 and membrane switch main part 2, in order to prevent that external dust from getting into membrane switch main part 2 inside to cause the influence to the circuit, simultaneously, utilize insulating layer 103 that sets up in the bottom plate 1 inner structure, can prevent effectively the condition that the electric leakage, through this kind, effectively, the problem that exists in the prior art can be solved.

The foregoing is merely illustrative of the present utility model and is not to be construed as limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; all equivalent structures or equivalent flow changes made by the specification and the attached drawings of the utility model or directly or indirectly applied to other related technical fields are included in the protection scope of the utility model.

Claims (8)

1. A durable membrane switch of high sealability, characterized by: including bottom plate, membrane switch main part, protective structure and integrated circuit board, be provided with the face glue film in the bottom plate inner structure, face glue film one side is provided with the isolation layer, the isolation layer opposite side is provided with the insulating layer, the bottom plate top is provided with the membrane switch main part, the inside protective structure that is provided with of membrane switch main part, be provided with the fixed plate in the protective structure inner structure, the inside sliding tray that is provided with of fixed plate, the inside sliding connection of sliding tray has the sliding block, the sliding block is provided with two, two sliding block one end all is provided with first axis of rotation, the first axis of rotation other end all is provided with the dwang, be provided with reset spring between the dwang, the inside integrated circuit board that is provided with of membrane switch main part.

2. The high-tightness durable membrane switch of claim 1 wherein: the top end of the membrane switch main body is provided with a touch panel, and the touch panel is electrically connected with the integrated circuit board.

3. The high-tightness durable membrane switch of claim 1 wherein: the other ends of the rotating rods are connected with the same second rotating shaft in a rotating mode.

4. The high-tightness durable membrane switch of claim 1 wherein: the protection structure is provided with two, two the protection structure evenly distributed is in the inside both sides of membrane switch main part.

5. The high-tightness durable membrane switch of claim 1 wherein: the surface adhesive layer is made of acrylic adhesive, and the insulating layer is made of insulating ink.

6. The high-tightness durable membrane switch of claim 1 wherein: the isolating layer is made of mica.

7. The high-tightness durable membrane switch of claim 1 wherein: the membrane switch main body is made of composite resin.

8. The high-tightness durable membrane switch of claim 1 wherein: the reset springs are arranged in two.