CN210865992U - Push-button switch - Google Patents

Abstract

The embodiment of the application provides a key switch, key switch includes the switching device, button face-piece and key support, button face-piece includes face-piece body and face-piece rotation portion, face-piece rotation portion sets up between the both ends of face-piece body, key support includes the support body, support rotation portion with press the splenium, the one end and the face-piece body of support body offset, the other end of support body is provided with support rotation portion, press the splenium to be located between the both ends of support body, the face-piece body is used for rotating around face-piece rotation portion, and drive the support body and rotate around support rotation portion, so that press the splenium touch switching device. Because key switch transmits the pressing force that the user applyed through face-piece rotating part and support rotating part as the rotation fulcrum respectively to face-piece body and support body keep offsetting at the pivoted in-process, make button face-piece and button support be difficult to produce when rotating and rock, improved the steadiness of button face-piece, the button face-piece is difficult to damage.

Description

Push-button switch

Technical Field

The application relates to the technical field of switches, in particular to a key switch.

Background

Generally, a user turns on and off the electrical circuit of the appliance by touching the key face housing of the switch. Because the key panel shell is frequently used and is easy to damage, how to improve the service life of the key panel shell is particularly important.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a key switch to solve the technical problem.

The embodiment of the application realizes the aim through the following technical scheme.

The embodiment of the application provides a key switch, key switch includes the switching device, button face-piece and key support, button face-piece includes face-piece body and face-piece rotation portion, face-piece rotation portion sets up between the both ends of face-piece body, key support includes the support body, support rotation portion with press the splenium, the one end and the face-piece body of support body offset, the other end of support body is provided with support rotation portion, press the splenium to be located between the both ends of support body, the face-piece body is used for rotating around face-piece rotation portion, and drive the support body and rotate around support rotation portion, so that press the splenium touch switching device.

In some embodiments, the face shell body includes a first side surface and a second side surface, the first side surface is opposite to the second side surface, and a distance between the face shell rotating portion and the first side surface is equal to a distance between the face shell rotating portion and the second side surface.

In some embodiments, the key switch further includes a frame and an elastic member, the face shell rotating portion and the support rotating portion are both rotatably connected to the frame, and the elastic member is located between the key support and the frame and is in a pressed state.

In some embodiments, the frame body defines an accommodating slot, the key holder further includes a protruding pillar disposed on the holder body, one end of the elastic member is accommodated in the accommodating slot, and the other end of the elastic member is sleeved on the protruding pillar.

In some embodiments, the diameter of the protruding column is smaller than that of the receiving groove, and the bracket body rotates relative to the frame body until the protruding column is received in the receiving groove or located outside the receiving groove.

In some embodiments, the frame body is provided with a bracket through hole, the bracket body and the switch device are respectively arranged at two sides of the frame body, and the pressing portion penetrates through the bracket through hole.

In some embodiments, the key holder further includes a protrusion disposed on the holder body, and the key holder abuts against the face casing body through the protrusion.

In some embodiments, the pack housing body includes a stop surface recessed inwardly from a surface of the pack housing body, the stop surface abutting the projection, the stop surface for receiving a lubricant.

In some embodiments, the key switch further includes a frame, the panel shell rotating portion and the bracket rotating portion are rotatably connected to the frame, and the frame defines a range of rotation of the key panel shell relative to the frame.

In some embodiments, the frame body comprises a limiting surface facing the face shell body; the key surface shell is used for rotating along two opposite directions relative to the frame body respectively and rotating to be abutted against the limiting surface.

In the key switch of this application embodiment, button face shell and key support mutually support, the face shell body conducts the pressing force to key support through the pivoted mode, the support body rotates, so that press the splenium touch switch device, because key switch passes through face shell rotating part and support rotating part and transmits the pressing force that the user applyed as the rotation fulcrum, and face shell body and support body keep offsetting at the pivoted in-process, make button face shell and key support be difficult to produce when rotating and rock, the steadiness of button face shell has been improved, button face shell is difficult to damage, help prolonging the life of button face shell.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a key switch provided in an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of the key switch of fig. 1 along line II-II.

Fig. 3 is a partially exploded view of a key switch according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of a key top case and a key holder of a key switch provided in an embodiment of the present application in a first position.

Fig. 5 is a schematic cross-sectional view of a key top case and a key holder of a key switch provided in an embodiment of the present application in a second position.

Fig. 6 is a partially exploded view of another perspective view of a key switch according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and fig. 2, an embodiment of the present application provides a key switch 100, where the key switch 100 includes a switch device 10, a key panel shell 20 and a key support 30, please refer to fig. 3, where the key panel shell 20 includes a panel shell body 21 and a panel shell rotating portion 22, the panel shell rotating portion 22 is disposed between two ends of the panel shell body 21, the key support 30 includes a support body 31, a support rotating portion 32 and a pressing portion 34, one end of the support body 31 abuts against the panel shell body 21, the other end of the support body 31 is provided with the support rotating portion 32, the pressing portion 34 is located between two ends of the support body 31, the panel shell body 21 is configured to rotate around the panel shell rotating portion 22, and the support body 31 is driven to rotate around the support rotating portion 32, so that the pressing portion 34 touches the switch device 10.

The key switch 100 may be installed on a wall to serve as a control switch of an illumination lamp, or may be installed on an outer surface of an electrical appliance to serve as a control switch of the electrical appliance. The key switch 100 may further include a housing 60, the housing 60 is typically embedded in a wall or an electrical appliance, the key panel case 20 is a part of the key switch 100 that is directly contacted by a user, the key panel case 20, the key support 30 and the switch device 10 are sequentially disposed from the key panel case 20 to the inside, and the key panel case 20 covers the key support 30 and the switch device 10. The switch device 10 is a mechanical switch, and if the switch device 10 is touched, the switch device 10 can change the on-off state of the circuit, so that the starting and the closing of the electric appliance are realized.

The key panel shell 20 and the key support 30 are both of an integrated structure formed by an injection molding process, and the injection molding material can be any one material selected from polyphthalamide, polyphenylene sulfide, polybutylene, polycarbonate and polyethylene. The face-piece rotating portion 22, the holder rotating portion 32 and the pressing portion 34 may be formed with a certain draft angle to facilitate the removal of the key face piece 20 and the key holder 30.

The number of the key top cases 20 may be one or two or three or more than three, and the number of the switching devices 10 and the number of the key holders 30 are the same as the number of the key top cases 20. In this embodiment, the number of the key panel housings 20 is two, the two key panel housings 20 are arranged in parallel, and a gap is maintained between the two key panel housings 20 to prevent the rotation of any one of the key panel housings 20 from affecting the other key panel housing 20.

Referring to fig. 4 and 5, the key top case 20 and the key holder 30 are rotated in cooperation with each other and can be rotated from a first position to a second position, where the key top case 20 and the key holder 30 shown in fig. 4 are located at the first position, and the key top case 20 and the key holder 30 shown in fig. 5 are located at the second position. In the first position, the pressing portion 34 may be spaced from the switch device 10 or may slightly contact, and when the user presses the face shell body 21, the face shell body 21 rotates around the face shell rotating portion 22 in the counterclockwise direction; because the bracket body 31 is abutted against the face shell body 21, the face shell body 21 drives the bracket body 31 to rotate in the rotating process, so that the bracket body 31 rotates around the bracket rotating part 32 in the anticlockwise direction; during the rotation of the holder body 31, the pressing portion 34 moves toward the switch device 10 and triggers the switch device 10 when the holder body 31 rotates to the second position, so that the switch device 10 performs corresponding actions.

The present application refers to the orientation of the structure in fig. 2, 4 and 5 with respect to the "counter-clockwise direction".

In the key switch 100 of the embodiment of the application, the key face shell 20 and the key support 30 are mutually matched, the face shell body 21 transmits pressing force to the key support 30 through a rotating mode, the support body 31 rotates, so that the pressing part 34 touches the switch device 10, because the key switch 100 transmits the pressing force applied by a user through the face shell rotating part 22 and the support rotating part 32 as a rotating fulcrum, and the face shell body 21 and the support body 31 keep offsetting in the rotating process, so that the key face shell 20 and the key support 30 are not easy to shake during rotation, the stability of the key face shell 20 is improved, the key face shell 20 is not easy to damage, and the service life of the key face shell 20 is prolonged.

The face housing body 21 is substantially in a rectangular housing cover shape, the face housing body 21 includes a first side surface 210 and a second side surface 211, the first side surface 210 is opposite to the second side surface 211, and a distance between the face housing rotating portion 22 and the first side surface 210 is equal to a distance between the face housing rotating portion 22 and the second side surface 211. Because the face-piece rotating part 22 is arranged in the middle of the face-piece body 21, the rotating fulcrum of the face-piece body 21 is equal to the distance between the first side surface 210 and the second side surface 211, compared with the case that the face-piece rotating part 22 is arranged at any one end of the face-piece body 21, the situation that the face-piece body 21 shakes when a user presses the other end due to the overlong distance between the other end and the face-piece rotating part 22 can be reduced, and the stability of the key face-piece 20 is improved.

The key switch 100 further includes a frame 40 and an elastic member 50, the panel rotating portion 22 and the bracket rotating portion 32 are both rotatably connected to the frame 40, and the elastic member 50 is located between the key bracket 30 and the frame 40 and is in a pressed state.

The frame 40 is substantially square, and the frame 40 is an integral structure formed by an injection molding process. Referring to fig. 6, the frame 40 is provided with a panel connecting portion 43 and a bracket connecting portion 44, the panel connecting portion 43 and the bracket connecting portion 44 are in a bump shape, the panel connecting portion 43 is rotatably connected to the panel rotating portion 22 to realize the relative rotation between the key panel 20 and the frame 40, the bracket rotating portion 32 is in a convex shape, and the bracket connecting portion 44 is rotatably connected to the bracket rotating portion 32 to realize the relative rotation between the key bracket 30 and the frame 40. The connection mode of face shell connecting portion 43 and face shell rotation portion 22 is shaft hole complex connection mode, and in this embodiment, face shell connecting portion 43 includes two pivots 430, and face shell rotation portion 22 is equipped with two shaft holes, and two shaft holes respectively with two pivot 430 one-to-ones, pivot 430 install in the shaft hole in order to realize rotating the connection. In other embodiments, the face-piece connecting portion 43 includes a shaft hole structure, and the face-piece rotating portion 22 includes a rotating shaft structure.

Under the condition that the face-piece connecting portion 43 includes the rotating shaft 430, the frame body 40 is further provided with the reserved through holes 45, the number of the reserved through holes 45 is consistent with that of the rotating shaft 430, and each reserved through hole 45 is located on one side of the corresponding rotating shaft 430, so that demolding of the frame body 40 is facilitated. Similarly, in the case that the panel rotating portion 22 includes a rotating shaft structure, the frame 40 is also provided with a corresponding through hole 45.

The connection between the stand connecting portion 44 and the stand rotating portion 32 is described with reference to the connection between the face-case connecting portion 43 and the face-case rotating portion 22.

The elastic member 50 is used to provide an elastic force to the key holder 30, so that the key holder 30 automatically restores from the second position to the first position after the switch device 10 is activated, and the key holder 30 can also drive the key panel housing 20 to restore from the second position to the first position. In addition, when the user presses the face shell body 21, the elastic member 50 can generate an elastic force opposing the pressing force of the user, so that when the user just touches the face shell body 21, the face shell body 21 does not rotate away from the user's finger and the user's finger falls off due to the user's touch, and thus the user can improve the control of the face shell body 21 when the user presses the face shell body 21.

The elastic member 50 may be a spring such as a compression spring, a tension spring, etc., in this embodiment, the elastic member 50 is a compression spring, and when the key holder 30 is located at the first position, the elastic member 50 may be in a micro-pressure state; when the key holder 30 moves from the first position to the second position, the pressure degree of the elastic member 50 is gradually increased, and when the key holder 30 moves to the second position, the state of the maximum pressure degree is achieved; when the key holder 30 moves from the second position to the first position, the pressure of the elastic member 50 is gradually reduced, and the key holder 30 returns to the micro-pressure state when moving to the first position.

The frame 40 limits the range of rotation of the key panel case 20 relative to the frame 40, and since the key holder 30 presses the touch switch device 10 via the pressing portion 34, if the pressing portion 34 presses the switch device 10 excessively, the switch device 10 may be damaged, and in this embodiment, the frame 40 limits the range of rotation of the key panel case 20, thereby avoiding the possibility of malfunction of the switch device 10 due to excessive exertion of force by a user.

The frame 40 includes a limiting surface 49, the limiting surface 49 faces the face housing body 21, and the key face housing 20 is used for rotating in two opposite directions relative to the frame 40 respectively and rotating to abut against the limiting surface 49. The limiting surface 49 includes a first surface 46 and a second surface 47, both the first surface 46 and the second surface 47 face the face shell body 21, when the key face shell 20 rotates to a first position relative to the frame 40, the first surface 46 abuts against the face shell body 21 and limits the key face shell 20 to continue rotating; when the key panel 20 rotates reversely relative to the frame 40, the panel body 21 is separated from the first surface 46, and when the key panel 20 rotates to the second position, the second surface 47 abuts against the panel body 21 and restricts the key panel 20 from further rotating.

The holder body 31 and the switch device 10 are respectively disposed on two sides of the frame 40, the frame 40 is provided with a holder through hole 42, and the pressing portion 34 penetrates the holder through hole 42. The bracket through hole 42 may be communicated with any one of the reserved through holes 45 and be a hole as a whole, and in the present embodiment, the reserved through hole 45 is reused, so that the function of the reserved through hole 45 can be well exerted, and the mold structure of the frame body 40 can be simplified. The pressing portion 34 may have a circular truncated cone shape, a prismatic shape, or the like, and in the present embodiment, the pressing portion 34 has a cross-shaped convex block shape.

The frame 40 has a receiving slot 41, the receiving slot 41 is opened from the surface of the frame 40 facing the key holder 30, the key holder 30 further includes a protruding pillar 35 (fig. 3), the protruding pillar 35 is disposed on the holder body 31, one end of the elastic element 50 is received in the receiving slot 41, and the other end of the elastic element 50 is sleeved on the protruding pillar 35. In the embodiment, the elastic member 50 is clamped between the key holder 30 and the frame 40, so that the elastic member 50 is not easily separated from or deviated from the key holder 30 and the frame 40, and the elastic member 50 is ensured to provide an elastic force for the key holder 30.

The diameter of the protruding column 35 is smaller than the diameter of the receiving groove 41, and the holder body 31 rotates relative to the frame 40 until the protruding column 35 is received in the receiving groove 41 or located outside the receiving groove 41. When the protruding column 35 is located outside the accommodating groove 41, the bracket body 31 rotates to a first position relative to the frame 40; when the protruding pillar 35 is received in the receiving groove 41, the holder body 31 rotates to a second position relative to the frame 40. The height of the protruding column 35 is smaller than the depth of the receiving groove 41, so that the protruding column 35 does not affect the rotation range of the bracket body 31. When the height of the protruding column 35 is larger than the depth of the receiving groove 41, the combination of the protruding column 35 and the bottom surface enclosing the receiving groove 41 can replace the combination of the panel body 21 and the second surface 47, and can limit the rotation range of the key panel 20.

The key holder 30 further includes a protrusion 33, the protrusion 33 is disposed on the holder body 31, the protrusion 33 can be disposed on an end of the holder body 31 and located at two ends of the holder body 31 respectively with the holder rotating portion 32, and the protrusion 33 protrudes out of the holder body 31 toward the housing body 21. The key holder 30 is pressed against the face housing body 21 by a projection 33. The projection 33 includes an arc surface facing the face shell body 21 and abutting against the face shell body 21 so as to form a point contact with the face shell body 21. Because the key panel shell 20 and the key support 30 are kept against each other in the rotating process, the key panel shell 20 and the key support 30 inevitably slide, the point contact makes the contact area between the bump 33 and the panel shell body 21 smaller, and the friction force between the bump 33 and the panel shell body 21 is also smaller, thereby facilitating the smooth rotation of the key panel shell 20 and the key support 30 and reducing the phenomenon of jamming in the rotating process.

Referring to fig. 3, the face shell body 21 includes a resisting surface 212, the resisting surface 212 is formed by inward recess from the surface of the face shell body 21 facing the protrusion 33, the resisting surface 212 is against the protrusion 33, and the resisting surface 212 is used for accommodating lubricant. The lubricant may be a lubricating oil, a grease, a solid lubricant, or the like. Since the protrusion 33 and the abutting surface 212 are in point contact, the lubricant is filled on the abutting surface 212, which can reduce the friction between the abutting surface 212 and the protrusion 33, slow down the abrasion of the protrusion 33, and prolong the service life of the key switch 100.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. A key switch, comprising:

a switching device;

the key face shell comprises a face shell body and a face shell rotating part, and the face shell rotating part is arranged between two ends of the face shell body; and

the key support comprises a support body, a support rotating part and a pressing part, one end of the support body is abutted against the face shell body, the other end of the support body is provided with the support rotating part, and the pressing part is positioned between two ends of the support body;

the face shell body is used for rotating around the face shell rotating part and driving the support body to rotate around the support rotating part, so that the pressing part touches the switch device.

2. The keyswitch of claim 1, wherein the housing body includes a first side and a second side, the first side being opposite to the second side, and a distance between the housing rotating portion and the first side being equal to a distance between the housing rotating portion and the second side.

3. The key switch of claim 1, further comprising a frame and an elastic member, wherein the panel rotating portion and the bracket rotating portion are both rotatably connected to the frame, and the elastic member is located between the key bracket and the frame and is in a pressed state.

4. The pushbutton switch as defined in claim 3, wherein the frame has a receiving slot, the pushbutton support further comprises a protruding post disposed on the support body, one end of the elastic member is received in the receiving slot, and the other end of the elastic member is sleeved on the protruding post.

5. The pushbutton switch as defined in claim 4, wherein the diameter of the protruding column is smaller than the diameter of the receiving slot, and the holder body rotates relative to the frame body until the protruding column is received in the receiving slot or outside the receiving slot.

6. The key switch according to claim 3, wherein the frame body is provided with a bracket through hole, the bracket body and the switch device are respectively disposed at two sides of the frame body, and the pressing portion penetrates through the bracket through hole.

7. The key switch according to any one of claims 1-6, wherein said key holder further comprises a protrusion, said protrusion is disposed on said holder body, and said key holder abuts against said face-piece body through said protrusion.

8. The push switch of claim 7, wherein the face housing body includes a stop surface recessed inwardly from a surface of the face housing body, the stop surface abutting the protrusion, the stop surface being configured to receive a lubricant.

9. The key switch of claim 1, further comprising a frame, wherein the face shell rotating portion and the bracket rotating portion are both rotatably connected to the frame, and the frame defines a range of rotation of the key face shell relative to the frame.

10. The key switch of claim 9, wherein the frame includes a limiting surface facing the face housing body; the key surface shell is used for rotating in two opposite directions relative to the frame body respectively and rotating to be abutted against the limiting surface.

Images