CN213242350U

CN213242350U - Thin film switch for high temperature and high humidity environment

Info

Publication number: CN213242350U
Application number: CN202022673662.9U
Authority: CN
Inventors: 陈小娟
Original assignee: Shenzhen Baoshengda Technology Co ltd
Current assignee: Shenzhen Baoshengda Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-05-18
Anticipated expiration: 2030-11-18

Abstract

The utility model belongs to the technical field of membrane switches, and discloses a membrane switch used in high-temperature and high-humidity environment, which comprises a panel layer, a control panel is arranged above the panel layer, a button is arranged in the control panel, the bottom of the button is fixedly connected with a connecting rod, an elastic piece is arranged below the connecting rod, the end of the elastic piece far away from the connecting rod is fixedly connected with the trigger rod in the vertical direction, the utility model is provided with a heat conducting plate, the heat conducting plate is jointed and connected with the bottom plate of the membrane switch body by a pressing device, the heat conducting plate is a soft silica gel heat conducting pad with certain flexibility, can be well attached to the lower part of the bottom plate and achieve the purposes of better heat conduction and heat dissipation, so that the membrane switch has certain heat dissipation effect, the membrane switch can be normally and stably used in a high-temperature environment, and the working performance and the working quality of the membrane switch are improved.

Description

Thin film switch for high temperature and high humidity environment

Technical Field

The utility model belongs to the technical field of the membrane switch, concretely relates to membrane switch that high temperature and high humidity environment used.

Background

The membrane switch is an operation system integrating key function, indicating element and instrument panel into one body, and is also called light-touch keyboard, and adopts an integral sealing structure formed from planar multilayer combination, and is a new type motor component integrating light collection, machine and electricity which can seal key switch, panel, mark, symbol display and lining plate together, so that it is a fundamental change of appearance structure of electronic product.

The existing membrane switch can normally work under a good working environment, but cannot be normally put into use when facing severe environments such as high humidity, high temperature and the like, and the membrane switch has a single internal structure and does not have good working performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a membrane switch that high temperature and high humidity environment was used to it is comparatively single to solve current membrane switch inner structure, can not normally carry out the problem of work under the higher or great environment of humidity of temperature.

In order to achieve the above object, the utility model provides a following technical scheme: membrane switch that high temperature and high humidity environment was used, including the panel layer, the top position on panel layer is provided with control panel, control panel's inside is provided with the button, the bottom fixedly connected with connecting rod of button, the below position of connecting rod is provided with the elastic component, the elastic component is kept away from the vertical direction fixedly connected with trigger bar of one end of connecting rod.

Preferably, a waterproof layer is arranged below the panel layer in the horizontal direction, the top of the waterproof layer is fixedly connected to the panel layer, and an upper circuit board is fixedly connected to the bottom of the waterproof layer in the horizontal direction.

Preferably, a lower circuit board is arranged below the upper circuit board in the horizontal direction, an isolation layer is arranged between the upper circuit board and the lower circuit board, a connector is fixedly connected to one side of the outer portion of the lower circuit board, and a bottom board is fixedly connected to the bottom of the lower circuit board in the horizontal direction.

Preferably, the horizontal direction of the lower position of the bottom plate is provided with a mounting seat, a vertical rod is arranged in the vertical direction of the position of one side of the upper part of the mounting seat, the bottom of the vertical rod is fixedly connected to the mounting seat, and one end, far away from the mounting seat, of the vertical rod is fixedly connected to the bottom of the bottom plate.

Preferably, the outside one side horizontal direction fixedly connected with connecting seat of montant, the inside vertical direction of connecting seat is provided with the pull rod, the one end fixedly connected with arm-tie of pull rod, the one end fixedly connected with clamp plate of arm-tie is kept away from to the pull rod, be provided with the heat-conducting plate between clamp plate and the bottom plate.

Preferably, a pressing device is arranged between the connecting seat and the pressing plate and comprises a base, the bottom of the base is fixedly connected to the connecting seat, a telescopic rod is fixedly connected to the base in the vertical direction of one end far away from the connecting seat, one end of the telescopic rod far away from the base is fixedly connected to the pressing plate, and a spring is arranged outside the telescopic rod.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses set up the heat-conducting plate, utilized closing device to make its bottom plate with the heat-conducting plate to laminate mutually and be connected, soft silica gel heat conduction pad is chooseed for use to the heat-conducting plate, has certain pliability, laminating bottom plate below that can be fine and reach better heat conduction and heat dissipation purpose for membrane switch has certain radiating effect, also can normally and stable use under high temperature environment, has improved membrane switch's operating quality.

(2) The utility model discloses set up the waterproof layer, set up the waterproof layer between panel and circuit board, carried out comparatively complete inclusion nature and coverability to film switch's inside through the waterproof layer, utilized the waterproof layer to make film switch have certain waterproof and anticorrosive effect to external environment's separation effect, can make film switch still can be safe and effectual expansion work under the great operational environment of humidity, improved film switch's performance.

(3) The utility model discloses set up closing device, utilize closing device can be fine laminate heat-conducting plate and switch body and be connected and can comparatively convenient dismantle and adorn tight work to the heat-conducting plate through closing device, made things convenient for the change work to the heat-conducting plate, improved membrane switch's work efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the internal structure of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is an enlarged view of the point A of the present invention;

in the figure: 1. a panel layer; 2. a control panel; 3. a button; 4. a connecting rod; 40. an elastic member; 41. a trigger lever; 5. a waterproof layer; 6. an upper circuit board; 7. an isolation layer; 8. a lower circuit board; 80. a connector assembly; 9. a base plate; 10. a mounting seat; 11. a vertical rod; 12. a connecting seat; 13. a pull rod; 130. pulling a plate; 14. a pressing device; 140. a base; 141. a telescopic rod; 142. a spring; 15. pressing a plate; 16. a heat conducting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: membrane switch that high temperature and high humidity environment was used, including panel layer 1, the top position of panel layer 1 is provided with control panel 2, control panel 2's inside is provided with button 3, button 3 is provided with a plurality of, correspond different work effects respectively, button 3's bottom fixedly connected with connecting rod 4, the below position of connecting rod 4 is provided with elastic component 40, elastic component 40 keeps away from the vertical direction fixedly connected with trigger bar 41 of one end of connecting rod 4, when pressing button 3, thereby connecting rod 4 can give trigger bar 41 with pressure transmission and make it carry out circuit switch-on work.

Further, waterproof layer 5 is provided with to the below position horizontal direction of panel layer 1, and waterproof layer 5 adopts nanometer waterproof coating, and nanometer waterproof coating can form the nanometer conjunctiva that hydrophobic effect is very good, can make the surface form powerful protective layer and cross, prevents that each inside face of switch from wading and weing for membrane switch can normally work under the environment of high humidity, and waterproof layer 5's top fixed connection is in panel layer 1, and waterproof layer 5's bottom horizontal direction fixedly connected with goes up circuit board 6.

Furthermore, a lower circuit board 8 is arranged below the upper circuit board 6 in the horizontal direction, an isolation layer 7 is arranged between the upper circuit board 6 and the lower circuit board 8, the isolation layer 7 is made of PET double-faced adhesive tape, the sealing performance of the switch and the hand feeling of the circuit button 3 are improved, a connector 80 is fixedly connected to one side of the outer portion of the lower circuit board 8, and a bottom board 9 is fixedly connected to the bottom of the lower circuit board 8 in the horizontal direction.

Specifically, the horizontal direction of the lower position of the bottom plate 9 is provided with a mounting seat 10, the vertical direction of the upper side position of the mounting seat 10 is provided with two vertical rods 11, the two vertical rods 11 are symmetrically arranged along the vertical central line of the mounting seat 10, the bottom of each vertical rod 11 is fixedly connected to the mounting seat 10, and the end of each vertical rod 11 far away from the mounting seat 10 is fixedly connected to the bottom of the bottom plate 9.

It is worth explaining, outside one side horizontal direction fixedly connected with connecting seat 12 of montant 11, the inside vertical direction of connecting seat 12 is provided with pull rod 13, the one end fixedly connected with arm-tie 130 of pull rod 13, the one end fixedly connected with clamp plate 15 of arm-tie 130 is kept away from to pull rod 13, be provided with heat-conducting plate 16 between clamp plate 15 and the bottom plate 9, soft silica gel heat conduction pad is chooseed for use to heat-conducting plate 16, soft silica gel heat conduction pad has good heat-conducting ability, and has certain pliability, not only can accomplish the heat transfer of the position of generating heat and heat dissipation position, still played shock attenuation and sealed effect simultaneously, membrane switch's whole working property has been improved.

Further, be provided with closing device 14 between connecting seat 12 and the clamp plate 15, closing device 14 is provided with two altogether, two closing device 14 distribute respectively in the both sides position of pull rod 13, closing device 14 includes base 140, the bottom fixed connection of base 140 is in connecting seat 12, the vertical direction fixedly connected with telescopic link 141 of one end of connecting seat 12 is kept away from to base 140, the one end fixed connection that base 140 was kept away from to telescopic link 141 is in clamp plate 15, the outside of telescopic link 141 is provided with spring 142, the bottom fixed connection of spring 142 is in connecting seat 12, the also fixed connection in the bottom of clamp plate 15 in its top.

The utility model discloses a theory of operation and use flow: when the utility model is used, firstly, a certain working gap appears between the pressing plate 15 and the bottom plate 9 by pulling the pulling plate 130 and the pull rod 13, the heat conducting plate 16 is horizontally placed between the bottom plate 9 and the pressing plate 15 and the pulling plate 130 is not pulled any more, the pressing plate 15 can receive the elastic force of the spring 142 under the work of the pressing device 14 so as to provide enough pressure for the heat conducting plate 16 and further limit the relative position of the heat conducting plate 16 relative to the bottom plate 9, so that the heat conducting plate 16 can be tightly attached to the lower part of the bottom plate 9, the connector 80 fixedly connected with the lower circuit board 8 is connected with a lead so as to connect the membrane switch into a circuit, according to the requirements of different conditions, the corresponding button 3 on the control panel 2 is pressed down, the connecting rod 4 can apply a downward force to the trigger rod 41 so as to make the upper circuit board 6 contact and the lower circuit board 8 to be conducted, the triggering rod 41 can rebound under the elastic action of the elastic piece 40 and then the circuit is disconnected, and in the process that the membrane switch works, the waterproof layer 5 arranged inside can play the role of isolating water vapor and water stains to protect the switch.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The membrane switch for the high-temperature and high-humidity environment comprises a panel layer (1), and is characterized in that: the top position of panel layer (1) is provided with control panel (2), the inside of control panel (2) is provided with button (3), the bottom fixedly connected with connecting rod (4) of button (3), the below position of connecting rod (4) is provided with elastic component (40), the vertical direction fixedly connected with trigger bar (41) of one end of connecting rod (4) are kept away from in elastic component (40).

2. The membrane switch for high temperature and high humidity environment according to claim 1, wherein: the waterproof board is characterized in that a waterproof layer (5) is arranged below the panel layer (1) in the horizontal direction, the top of the waterproof layer (5) is fixedly connected to the panel layer (1), and an upper circuit board (6) is fixedly connected to the bottom of the waterproof layer (5) in the horizontal direction.

3. The membrane switch for high temperature and high humidity environment according to claim 2, wherein: the circuit board is characterized in that a lower circuit board (8) is arranged below the upper circuit board (6) in the horizontal direction, an isolation layer (7) is arranged between the upper circuit board (6) and the lower circuit board (8), a connector (80) is fixedly connected to one side of the outer portion of the lower circuit board (8), and a bottom plate (9) is fixedly connected to the bottom of the lower circuit board (8) in the horizontal direction.

4. The membrane switch for high temperature and high humidity environment according to claim 3, wherein: the lower position horizontal direction of bottom plate (9) is provided with mount pad (10), the vertical direction in top one side position of mount pad (10) is provided with montant (11), the bottom fixed connection of montant (11) is in mount pad (10), the one end fixed connection of mount pad (10) is kept away from in montant (11) is in the bottom of bottom plate (9).

5. The membrane switch for high temperature and high humidity environment according to claim 4, wherein: the utility model discloses a heat exchanger, including montant (11), outside one side horizontal direction fixedly connected with connecting seat (12), the vertical direction in inside of connecting seat (12) is provided with pull rod (13), the one end fixedly connected with arm-tie (130) of pull rod (13), the one end fixedly connected with clamp plate (15) of arm-tie (130) are kept away from in pull rod (13), be provided with heat-conducting plate (16) between clamp plate (15) and bottom plate (9).

6. The membrane switch for high temperature and high humidity environment according to claim 5, wherein: be provided with closing device (14) between connecting seat (12) and clamp plate (15), closing device (14) include base (140), the bottom fixed connection of base (140) is in connecting seat (12), the vertical direction fixedly connected with telescopic link (141) of one end that connecting seat (12) were kept away from in base (140), the one end fixed connection in clamp plate (15) that base (140) were kept away from in telescopic link (141), the outside of telescopic link (141) is provided with spring (142).