CN210668179U - Push type key switch - Google Patents

Abstract

The utility model discloses a push type key switch, include: the keyboard comprises a bottom plate, a pcb is arranged above the bottom plate, a fixing plate buckled with the bottom plate is arranged above the pcb, a key panel is arranged above the fixing plate, a frame buckled with the bottom plate is arranged above the key panel, and the key panel, the fixing plate and the pcb are all positioned on the inner side of the frame; a plurality of limiting pieces are fixedly connected below the key panel, and limiting grooves matched with the limiting pieces are formed above the fixing plate; the mounting column is abutted in the mounting groove, so that a moving stroke space of the limiting piece exists between the bottom plate and the limiting groove; the bottom plate is provided with a first buckling groove matched with the first clamping piece, the frame is provided with a second clamping piece, and the edge of the fixed plate is provided with a second buckling groove matched with the second clamping piece. The pressing piece of the key switch on the market is compact in structure and convenient to operate, and the problem that the pressing piece is easy to pop out of the key switch due to uneven stress when the pressing piece is pressed is solved.

Description

Push type key switch

Technical Field

The utility model relates to a household electrical appliances technical field, in particular to push type key switch.

Background

With the development of science and technology, switch keys are visible everywhere in life, and the key switch is used as a starting device for starting electrical equipment, so that the user experience of the electrical equipment is greatly influenced by the stability of the key switch. The key comprises a pressing piece for triggering the switch and an elastic piece which is arranged between the pressing piece and the switch and is used for resetting the pressing piece. In the existing key switch, a flange is usually arranged on a pressing piece to limit the displacement of the pressing piece in the pressing direction, so that the pressing piece is prevented from being separated from the key switch.

Disclosure of Invention

The utility model provides a push type key switch, its compact structure, convenient operation, the press piece of solving key switch on the market makes the press piece pop out key switch's problem because of the atress is uneven when pressing easily.

In order to achieve the above object, the utility model adopts the following technical scheme:

a push-type key switch comprising: the keyboard comprises a bottom plate, a pcb is arranged above the bottom plate, a fixing plate buckled with the bottom plate is arranged above the pcb, a key panel is arranged above the fixing plate, a frame buckled with the bottom plate is arranged above the key panel, and the key panel, the fixing plate and the pcb are all positioned on the inner side of the frame;

a plurality of limiting pieces are fixedly connected below the key panel, and limiting grooves matched with the limiting pieces are formed above the fixing plate;

a plurality of springs are fixedly connected above the fixed plate, when the fixed plate is buckled with the bottom plate, the springs are contacted with the key panel, mounting columns are fixedly connected below the fixed plate, mounting grooves for inserting the mounting columns are formed in the bottom plate, and when the fixed plate is buckled with the bottom plate, the mounting columns are abutted against the mounting grooves, so that a moving stroke space of the limiting part exists between the bottom plate and the limiting groove;

the upper part of the pcb is connected with an inductive switch, a first hole through which the inductive switch penetrates is formed in the fixed plate, a contact piece contacting with the inductive switch is arranged below the key panel, a second hole through which a spring penetrates is formed in the fixed plate, and when the fixed plate is buckled with the bottom plate, the spring penetrates through the fixed plate and contacts with the key panel;

the frame is characterized in that a first clamping piece is arranged on the inner side wall of the frame, a first buckling groove matched with the first clamping piece is formed in the bottom plate, a second clamping piece is arranged on the frame, and a second buckling groove matched with the second clamping piece is formed in the edge of the fixing plate.

Further, the lateral wall of key panel extends and is equipped with the anticreep edge, be equipped with the anticreep groove with the adaptation of anticreep edge on the frame.

Further, be equipped with the phosphor strip on the frame, the anticollision frame is established to the frame outside cover, the anticollision frame is formed for the preparation of elasticity material.

Further, the stopper includes: the moving arm is fixedly connected with the key panel and inclines when applying force, and the moving arm is integrally formed and connected with the limiting protrusion.

Furthermore, the length of the mounting column is greater than the depth of the mounting groove, so that when the mounting column is mounted in the mounting groove, a space between the fixing plate and the bottom plate can be used for the movement of the limiting part on the key panel, and therefore the key panel has a pressing stroke space.

The utility model has the advantages that:

the limiting groove is matched with the limiting part, so that the key panel can be stably kept inside the key switch, the problem that the key panel is separated from the key switch due to uneven stress when a user presses the key panel is solved, and the initial state can be recovered by the elastic action of the spring after the key panel is pressed by the starting switch through the spring, so that the effect of controlling the pressing starting switch of the press-type key is realized.

Drawings

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

FIG. 2 is a schematic view of the assembly structure of the bottom plate, the key panel and the fixing plate of the present invention;

FIG. 3 is a schematic view of the key panel structure of the present invention;

FIG. 4 is a schematic view of the bottom plate structure of the present invention;

FIG. 5 is a schematic diagram of the fixing plate structure of the present invention;

FIG. 6 is a schematic view of the frame structure of the present invention;

FIG. 7 is a schematic view of the key panel structure of the present invention;

fig. 8 is a schematic sectional view of the fixing plate of the present invention;

reference symbol comparison table:

1-bottom plate, 11-mounting groove, 12-first catching groove, 2-pcb, 21-inductive switch, 3-spring, 4-key panel, 41-limit piece, 411-limit projection, 412-moving arm, 42-anti-slip edge, 43-contact piece, 5-fixing plate, 51-limit groove, 52-mounting column, 53-hole two, 54-hole one, 55-second catching groove, 6-frame, 61-first fastener, 62-second fastener, 63-anti-slip groove.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.

As shown in fig. 1 to 8, a push type key switch includes: the keyboard comprises a bottom plate 1, wherein a pcb 2 is arranged above the bottom plate 1, a fixing plate 5 buckled with the bottom plate 1 is arranged above the pcb 2, a key panel 4 is arranged above the fixing plate 5, a frame 6 buckled with the bottom plate 1 is arranged above the key panel 4, and the key panel 4, the fixing plate 5 and the pcb 2 are all positioned on the inner side of the frame 6;

a plurality of limiting pieces 41 are fixedly connected below the key panel 4, and a limiting groove 51 matched with the limiting pieces 41 is arranged above the fixing plate 5;

a plurality of springs 3 are fixedly connected above the fixed plate 5, when the fixed plate 5 is buckled with the bottom plate 1, the springs 3 are in contact with the key panel 4, the mounting posts 52 are fixedly connected below the fixed plate 5, the bottom plate 1 is provided with mounting grooves 11 for inserting the mounting posts 52, and when the fixed plate 5 is buckled with the bottom plate 1, the mounting posts 52 abut against the mounting grooves 11, so that a moving stroke space of the limiting piece 41 exists between the bottom plate 1 and the limiting groove 51;

the upper part of the pcb 2 is connected with the inductive switch 21, the fixing plate 5 is provided with a first hole 54 through which the inductive switch 21 penetrates, the lower part of the key panel 4 is provided with a contact piece 43 contacting with the inductive switch 21, the fixing plate 5 is provided with a second hole 53 through which the spring 3 penetrates, and when the fixing plate 5 is buckled with the bottom plate 1, the spring 3 penetrates through the fixing plate 5 and contacts with the key panel 4;

the frame is characterized in that a first clamping piece 61 is arranged on the inner side wall of the frame 6, a first buckling groove 12 matched with the first clamping piece 61 is arranged on the bottom plate 1, a second clamping piece 62 is arranged on the frame 6, and a second buckling groove 55 matched with the second clamping piece 62 is arranged at the edge of the fixed plate 5.

The lateral wall of key panel 4 extends and is equipped with anticreep edge 42, be equipped with the anticreep groove 63 with anticreep edge 42 adaptation on the frame 6. Be equipped with the phosphor strip on the frame 6, the anticollision frame is established to 6 outside covers of frame, the anticollision frame is formed for the preparation of elastic material. The stopper 41 includes: a moving arm 412 which is fixedly connected with the key panel 4 and inclines when applying force, and the moving arm 412 is integrally connected with a limiting bulge 411. The length of the mounting post 52 is greater than the depth of the mounting groove 11, so that when the mounting post 52 is mounted in the mounting groove 11, a space between the fixing plate 5 and the bottom plate 1 can be provided for the movement of the limiting member 41 on the key panel 4, so that the key panel 4 has a stroke space for pressing.

In the using process of the device, the fixing plate 5 is provided with a second hole 53 for the spring 3 to penetrate through, so that the fixing plate 5 can enable the spring 3 to penetrate through the fixing plate 5 and to be in contact with the key panel 4 while fixing the spring 3, and therefore when the key panel 4 is pressed, the spring 3 can be pressed by the key panel 4 to generate elastic deformation, and the key panel 4 can be reset to an initial position when the key panel 4 loses the pressing.

In the embodiment, the fixing plate 5 is arranged, so that the fixing plate 5 can fix parts such as the induction switch 21 and the like, and the parts in the press type key are prevented from popping up after the key switch is required to be overhauled and the key panel is disassembled, so that the repairing difficulty of a maintainer is increased; the fixing plate 5 is provided with a mounting post 52 on one side facing the bottom plate 1, the length of the mounting post 52 is greater than the depth of the mounting groove 11, so that when the mounting post 52 is mounted in the mounting groove 11, a certain space exists between the fixing plate 5 and the bottom plate 1, which allows the limiting member 41 on the key panel 4 to move, so that the key panel 4 has a pressing stroke space, when a user presses the key panel 4, the limiting member 41 can move along the limiting groove 51, the spring 3 on the fixing plate 5 is elastically deformed under the force of the spring, when the contact piece 43 on the key panel 4 is pressed down to contact with the inductive switch 21 on the pcb plate 2, the contact part presses the inductive switch 21, so that a machine connected with the key press switch is started, and the user releases the pressing of the key panel 4, the key panel 4 is moved away from the inductive switch 21 by the elastic force of the spring 3, and when the key panel 4 is moved to a certain distance by the elastic force of the spring 3, the limiting protrusion 411 of the limiting member 41 will abut against the groove wall of the limiting groove 51, thereby preventing the key panel 4 from disengaging from the push-button switch; the limiting member 41 includes a moving arm 412 and a limiting protrusion 411 disposed on the moving arm 412, and the moving arm 412 is adapted to the limiting groove 51, so that when the key panel 4 moves, the movement of the key panel 4 is more stable by guiding the moving arm 412 through the limiting groove 51.

In a specific embodiment, the springs 3 are uniformly distributed on the fixing plate 5, so that when the key panel 4 is pressed, the key panel 4 can uniformly receive the elastic force applied by the springs 3, the hand feeling of a user when the user presses and resets is enhanced, and the user experience is improved.

In a specific embodiment, the fixing plate 5 is provided with an elastic groove 53 for installing the spring 3, so that the spring 3 can be stably installed in the second hole 53 to prevent the spring 3 from generating lateral displacement to affect the reset action on the key panel 4, the length of the spring 3 is greater than the depth of the elastic groove 53, so that the spring 3 can be higher than the second hole 53, so that when the key panel 4 is pressed, the spring 3 can be acted on the spring 3 to elastically deform the spring 3, when the key panel 4 stops being pressed, that is, the user releases the pressing of the contact on the key panel 4, and at this time, the elastic force of the spring 3 reset can reset the key panel 4.

In a specific embodiment, a plurality of inductive switches 21 are arranged on the pcb 2; be equipped with a plurality of confessions on the fixed plate 5 hole one that inductive switch 21 wore out, corresponding, be equipped with on the keypad 4 with the contact piece 43 that inductive switch 21 collocation was used, when the user pressed keypad 4, keypad 4 drove contact portion 43 pushes down, thereby with inductive switch 21 takes place the contact, inductive switch 21 can transmit contact signal for pcb board 2, is controlled by the controlling means on the push type board 2 the electrical apparatus of push type key-type connection is opened or is closed.

In one embodiment, the pressing key further includes a frame 6; the frame 6 is connected with the bottom plate 1 in a buckling manner; the frame 6 is buckled on the bottom plate 1 in a buckling connection mode, so that not only is the stabilizing effect of the utility model achieved, but also the frames 6 with different appearances can be flexibly replaced, and the decoration effect is achieved; the frame 6 is provided with a fluorescent strip; the press type key further comprises an anti-collision frame sleeved on the frame 6; the anti-collision frame is made of elastic substances; frame 6 is used for perfecting the utility model discloses a structure strengthens the utility model discloses a stability, be equipped with the phosphor strip on the frame 6 to can send fluorescence under the condition of dark, convenience of customers is in the smooth position of finding the switch in the dark, frame 6 still overlaps and is equipped with crashproof frame, plays the guard action.

In a specific embodiment, a first clamping piece 61 is arranged on the side wall of the frame 6; a first buckle groove 12 matched with the first clamping piece 61 for use is arranged on the bottom plate; a second buckling groove 55 is further formed in the edge of the fixing piece 5, and a second clamping piece 62 matched with the second buckling groove 55 is arranged on the frame 6; through the collocation use of first fastener 61, first catching groove 12 and the collocation use of second fastener 62, second catching groove 55, thereby will the stable lock of frame 6 is in on the bottom plate 1 and with fixed plate 5 looks lock, thereby further reinforcing the utility model discloses a stability.

In one embodiment, two sidewalls of the key panel 4 extend away from the key panel 4 to form an anti-slip edge 42; the frame 6 is provided with an anti-falling groove 63 matched with the anti-falling edge 42; through anticreep edge 42 with under the collocation effect of anticreep groove 63, can be further prevent key panel 4 breaks away from fixed plate 5 to after the user stops to press key panel 4, spring 3 is in with when key panel 4 pops out, anticreep groove 63 can block anticreep edge 42, thereby prevents key panel 4 from bouncing off fixed plate 5.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A push-type key switch, comprising: the keyboard comprises a bottom plate (1), wherein a pcb (2) is arranged above the bottom plate (1), a fixing plate (5) buckled with the bottom plate (1) is arranged above the pcb (2), a key panel (4) is arranged above the fixing plate (5), a frame (6) buckled with the bottom plate (1) is arranged above the key panel (4), and the key panel (4), the fixing plate (5) and the pcb (2) are all positioned on the inner side of the frame (6);

a plurality of limiting pieces (41) are fixedly connected below the key panel (4), and limiting grooves (51) matched with the limiting pieces (41) are formed above the fixed plate (5);

the key board is characterized in that a plurality of springs (3) are fixedly connected above the fixing plate (5), when the fixing plate (5) is buckled with the bottom board (1), the springs (3) are in contact with the key panel (4), the mounting columns (52) are fixedly connected below the fixing plate (5), the bottom board (1) is provided with a mounting groove (11) for inserting the mounting columns (52), when the fixing plate (5) is buckled with the bottom board (1), the mounting columns (52) abut against the mounting groove (11) to enable a moving stroke space of the limiting part (41) to exist between the bottom board (1) and the limiting groove (51);

an induction switch (21) is connected above the pcb (2), a first hole (54) through which the induction switch (21) penetrates is formed in the fixing plate (5), a contact piece (43) which is in contact with the induction switch (21) is arranged below the key panel (4), a second hole (53) through which the spring (3) penetrates is formed in the fixing plate (5), and when the fixing plate (5) is buckled with the bottom plate (1), the spring (3) penetrates through the fixing plate (5) and is in contact with the key panel (4);

be equipped with first fastener (61) on frame (6) inside wall, be equipped with on bottom plate (1) with first catching groove (12) of first fastener (61) adaptation, be equipped with second fastener (62) on frame (6), the edge of fixed plate (5) is equipped with second catching groove (55) with second fastener (62) adaptation.

2. The push-type push-button switch of claim 1, wherein: the lateral wall of key panel (4) extends and is equipped with anticreep edge (42), be equipped with on frame (6) with anticreep groove (63) of anticreep edge (42) adaptation.

3. The push-type push-button switch of claim 1, wherein: be equipped with the phosphor strip on frame (6), frame (6) outside cover is established anticollision frame, anticollision frame is formed for the preparation of elastic material.

4. The push-type push-button switch of claim 1, wherein: the stopper (41) includes: the moving arm (412) is fixedly connected with the key panel (4) and inclines when applying force, and the moving arm (412) is integrally connected with the limiting bulge (411).

5. The push-type push-button switch of claim 1, wherein: the length of the mounting column (52) is greater than the depth of the mounting groove (11), so that when the mounting column (52) is mounted in the mounting groove (11), a space existing between the fixing plate (5) and the bottom plate (1) can be used for the movement of the limiting piece (41) on the key panel (4), and therefore a pressing stroke space exists on the key panel (4).

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