CN219226116U

CN219226116U - Pressure sensing membrane switch

Info

Publication number: CN219226116U
Application number: CN202320067277.0U
Authority: CN
Inventors: 王佳琳; 王佩
Original assignee: Dongguan Dongchen Electronics Co ltd
Current assignee: Dongguan Dongchen Electronics Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-20
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a pressure-sensitive membrane switch, which belongs to the technical field of membrane switches and comprises a shell and a protective shell, wherein a membrane switch body is embedded and installed in the shell, the membrane switch body is positioned between the shell and the protective shell, mounting blocks are fixedly connected to the side walls of two ends of the protective shell, an observation window is embedded and installed on the surface of the protective shell, two groups of pressing blocks are arranged at one end, far away from the observation window, of the upper surface of the protective shell, a pressing assembly is arranged on the upper surface of the membrane switch body, and the pressing assembly is positioned between the membrane switch body and the protective shell. Therefore, the membrane switch can be protected through the shell, the protective sleeve, the protective clamping plate, the rubber frame, the first connecting strip, the second connecting strip, the rubber disc and the patch, the situation that the keys are damaged due to the fact that foreign objects are easily rubbed when the membrane switch is pressed for a long time is avoided, the service life of the membrane switch is prolonged, and the membrane switch has practicability.

Description

Pressure sensing membrane switch

Technical Field

The utility model relates to a membrane switch, in particular to a pressure-sensing membrane switch, and belongs to the technical field of membrane switches.

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. 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 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.

The current membrane switch realizes the function of opening and closing according to pressing, but can easily receive the friction of foreign matter when long-term pressurized to lead to the condition that the button appears damaging, reduced membrane switch's life. Thus, improvements are now made to a pressure sensitive membrane switch.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a pressure-sensitive membrane switch which can protect the membrane switch, prolong the service life of the membrane switch and solve the technical problem that in the prior art, when pressed for a long time, the membrane switch is easily rubbed by foreign objects, so that the keys are damaged.

In order to solve the problems, the following technical scheme is provided:

the utility model provides a forced induction membrane switch, includes casing and protecting crust, the inside embedding of casing installs the membrane switch body, the membrane switch body is located between casing and the protecting crust, protecting crust both ends lateral wall fixedly connected with installation piece, the observation window is installed to protecting crust surface embedding, protecting crust upper surface is kept away from observation window one end and is provided with two sets of pressing blocks, membrane switch body upper surface is provided with presses the subassembly, it is located between membrane switch body and the protecting crust to press the subassembly.

Further, the pressing component comprises a rubber frame, a first connecting strip is fixedly arranged in the middle of the rubber frame, a second connecting strip is fixedly connected between the first connecting strip and the rubber frame, and a rubber disc is arranged between the second connecting strips.

Furthermore, two groups of keys are arranged on the surface of the membrane switch body, and a connector is fixedly arranged on one side of the membrane switch body.

Further, the bottom of the rubber plate is provided with a groove, and a patch is arranged at the groove of the rubber plate and is positioned between the rubber plate and the key.

Further, casing one side fixed mounting has the protective sheath, the protective sheath cup joints in the connector outside, the mounting groove has been seted up to protective sheath both sides face, the inside slidable mounting of mounting groove has the protection cardboard.

Further, the rubber frame, the first connecting strip and the second connecting strip are adhered and fixed on the surface of the membrane switch body.

Further, the surface of casing and installation piece has seted up the screw hole of upper and lower run-through, the inside threaded connection of screw hole has the screw.

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

1. according to the utility model, through the arrangement of the shell, the protective sleeve and the protective clamping plate, the membrane switch body is conveniently shielded and protected, and the situation that the membrane switch body is directly exposed to the outside and damaged is avoided;

2. according to the utility model, the rubber frame, the first connecting strip and the second connecting strip are adhered to the surface of the membrane switch body, and the rubber disc is pressed to enable the patch below to press the key, so that the situation that the key is damaged due to the fact that foreign objects are easily rubbed when the key is pressed for a long time is avoided.

In conclusion, the membrane switch can be protected through the shell, the protective sleeve, the protective clamping plate, the rubber frame, the first connecting strip, the second connecting strip, the rubber disc and the patch, the service life of the membrane switch is prolonged, and the membrane switch has practicability.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of a preferred embodiment of a pressure sensitive membrane switch according to the present utility model;

FIG. 2 is a schematic view of a pressure sensitive membrane switch according to a preferred embodiment of the present utility model in its entirety;

FIG. 3 is a schematic view of a housing and a membrane switch body according to a preferred embodiment of a pressure sensitive membrane switch of the present utility model;

fig. 4 is an enlarged schematic view of a protective sleeve of a preferred embodiment of a pressure sensitive membrane switch according to the present utility model.

In the figure: 1. a housing; 2. a protective shell; 3. a membrane switch body; 4. a mounting block; 5. an observation window; 6. pressing the blocks; 7. a pressing assembly; 71. a rubber frame; 72. a first connecting bar; 73. a second connecting bar; 74. a rubber plate; 8. a key; 9. a connector; 10. a patch; 11. a protective sleeve; 12. a mounting groove; 13. a protection clamping plate; 14. a threaded hole; 15. and (5) a screw.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, the pressure-sensitive membrane switch provided in this embodiment includes a housing 1 and a protective housing 2, wherein a membrane switch body 3 is installed in the housing 1, the membrane switch body 3 is located between the housing 1 and the protective housing 2, mounting blocks 4 are fixedly connected to side walls at two ends of the protective housing 2, an observation window 5 is installed in the surface of the protective housing 2 in an embedded manner, two groups of pressing blocks 6 are arranged at one end, far away from the observation window 5, of the upper surface of the protective housing 2, a pressing assembly 7 is arranged on the upper surface of the membrane switch body 3, and the pressing assembly 7 is located between the membrane switch body 3 and the protective housing 2.

Preferably, the pressing component 7 comprises a rubber frame 71, a first connecting strip 72 is fixedly arranged in the middle of the rubber frame 71, a second connecting strip 73 is fixedly connected between the first connecting strip 72 and the rubber frame 71, a rubber disc 74 is arranged between the second connecting strips 73, the membrane switch body 3 is placed in a groove of the shell 1, and then the rubber frame 71, the first connecting strip 72 and the second connecting strip 73 are adhered to the surface of the membrane switch body 3.

Preferably, the surface of the membrane switch body 3 is provided with two groups of keys 8, and one side of the membrane switch body 3 is fixedly provided with a connector 9.

Preferably, the recess is seted up to rubber dish 74 bottom, and the recess department of rubber dish 74 installs paster 10, and paster 10 is located between rubber dish 74 and the button 8, and paster 10 bonds on button 8 surface, makes the paster 10 of below press button 8 through pressing rubber dish 74, has avoided the friction that can receive the foreign object easily when long-term pressurized, has improved button 8's life.

Preferably, a protection sleeve 11 is fixedly arranged on one side of the shell 1, the protection sleeve 11 is sleeved on the outer side of the connector 9, mounting grooves 12 are formed in two side faces of the protection sleeve 11, and a protection clamping plate 13 is slidably arranged in each mounting groove 12 to protect the connector 9.

Preferably, the rubber frame 71, the first connecting strip 72 and the second connecting strip 73 are adhered and fixed on the surface of the membrane switch body 3.

Preferably, the surface of the shell 1 and the surface of the mounting block 4 are provided with threaded holes 14 which are vertically penetrated, the threaded holes 14 are internally connected with screws 15 in a threaded manner, the protecting shell 2 is mounted above the membrane switch body 3, the surface of the shell 1 and the surface of the mounting block 4 are provided with threaded holes 14 which are vertically penetrated for fixed mounting, and a user can detach or assemble the protecting shell 2 by overlapping or separating the threaded holes 14 and the screws 15.

The application principle and the application flow of the utility model are as follows:

when the membrane switch is used, the membrane switch body 3 is placed into the groove of the shell 1, the rubber frame 71, the first connecting strip 72 and the second connecting strip 73 are adhered to the surface of the membrane switch body 3, the groove is formed in the bottom of the rubber disc 74, the patch 10 is installed at the groove of the rubber disc 74, the patch 10 is adhered to the surface of the key 8, the protective sleeve 11 is fixedly installed on one side of the shell 1, the protective sleeve 11 is sleeved on the outer side of the connector 9, the mounting grooves 12 are formed in two sides of the protective sleeve 11, the protective clamping plates 13 are slidably installed in the mounting grooves 12, the connector 9 is protected, the protective shell 2 is installed above the membrane switch body 3, the threaded holes 14 which are vertically penetrated are formed in the surface of the shell 1 and the mounting block 4, after the assembly is finished, the patch 10 below is pressed on the key 8 by pressing the rubber disc 74, the friction of foreign objects can be easily received when the key 8 is pressed for a long time is avoided, and the service life of the key 8 is prolonged.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

While the utility model has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this utility model will occur to those skilled in the art in light of the spirit and principles of this utility model, and such modifications and alterations are also within the scope of this utility model.

Claims

1. The utility model provides a forced induction membrane switch, its characterized in that, includes casing (1) and protecting crust (2), membrane switch body (3) are installed to casing (1) inside embedding, membrane switch body (3) are located between casing (1) and protecting crust (2), protecting crust (2) both ends lateral wall fixedly connected with installation piece (4), protecting crust (2) surface embedding installs observation window (5), protecting crust (2) upper surface is kept away from observation window (5) one end and is provided with two sets of pressing piece (6), membrane switch body (3) upper surface is provided with presses subassembly (7), press subassembly (7) are located between membrane switch body (3) and protecting crust (2).

2. The pressure sensing membrane switch according to claim 1, wherein the pressing assembly (7) comprises a rubber frame (71), a first connecting strip (72) is fixedly arranged in the middle of the rubber frame (71), a second connecting strip (73) is fixedly connected between the first connecting strip (72) and the rubber frame (71), and a rubber disc (74) is arranged between the second connecting strips (73).

3. A pressure-sensitive membrane switch according to claim 1, characterized in that the membrane switch body (3) is provided with two groups of keys (8) on its surface, and a connector (9) is fixedly arranged on one side of the membrane switch body (3).

4. A pressure-sensitive membrane switch according to claim 2, characterized in that the bottom of the rubber disc (74) is provided with a groove, and a patch (10) is mounted at the groove of the rubber disc (74), and the patch (10) is located between the rubber disc (74) and the key (8).

5. The pressure sensing membrane switch according to claim 1, wherein a protective sleeve (11) is fixedly arranged on one side of the shell (1), the protective sleeve (11) is sleeved on the outer side of the connector (9), mounting grooves (12) are formed in two side surfaces of the protective sleeve (11), and a protective clamping plate (13) is slidably arranged in the mounting grooves (12).

6. A pressure-sensitive membrane switch according to claim 2, wherein the rubber frame (71), the first connecting strip (72) and the second connecting strip (73) are adhered and fixed on the surface of the membrane switch body (3).

7. A pressure-sensitive membrane switch according to claim 1, wherein the surface of the housing (1) and the surface of the mounting block (4) are provided with threaded holes (14) which are vertically penetrated, and the threaded holes (14) are internally connected with screws (15) in a threaded manner.