TWM621747U - Assembled silencing switch - Google Patents

Abstract

The new model discloses a combined mute switch, comprising a base and an upper cover arranged above the base, the upper cover and the base are combined to form an accommodating cavity inside, and a guiding core is arranged in the accommodating cavity , at least one upper elastically deformable muffler is arranged on the upper cover and on the top wall of the accommodating cavity, and at least one elastically deformable muffler is arranged at the lower end of the guide core; the lower elastically deformable muffler The impact force of the guide core moving downward is buffered and silenced, and the impact force of the guide core moving up and reset is buffered and silenced by the upper elastically deformable sound-absorbing member. The combined mute switch provided by the new model realizes mute effect when pressing and popping to reset.

Description

A combined mute switch

The new model relates to the field of key switches, in particular to a combined mute switch.

When the key switch is in use, since the shaft of the key will touch the base when pressed, and the upper cover will be touched when it is lifted, it is easy to make noise when it is pressed and released.

In order to realize the muteness of the key switch, a common method is to add an elastic gasket or a washer under the key to form a buffer, thereby reducing the key sound. This structural method can only achieve mute when the button is pressed, and after the button is bounced, the press shaft will still make a sound when it hits the top of the upper cover, which cannot be completely mute.

In view of the above deficiencies, the purpose of the present invention is to provide a combined mute switch, which can achieve mute effect at the timing of pressing and popping up again.

The technical scheme adopted by this new model to achieve the above purpose is:

A combined mute switch includes a base and an upper cover arranged above the base, the upper cover is combined with the base to form an accommodating cavity inside, a guide core is arranged in the accommodating cavity, and the upper cover is And at least one upper elastically deformable muffler is arranged on the top wall of the accommodating cavity, and at least one elastically deformable muffler is arranged at the lower end of the guide core; the lower elastically deformable muffler moves down the guide core. The impact force is buffered and silenced, and the impact force caused by the upward movement and reset of the guide core is buffered and silenced by the upper elastically deformable sound-absorbing member.

As a further improvement of the present invention, in a natural state, the guide core is in contact with the upper elastically deformable noise-absorbing member, and in a working state, the lower elastically deformable noise-absorbing member is in contact with the bottom wall of the accommodating cavity.

As a further improvement of the present invention, the upper elastically deformable sound-absorbing member is integrally injection-molded on the upper cover.

As a further improvement of the present invention, the upper elastically deformable sound-absorbing member is pasted on the upper cover.

As a further improvement of the present invention, a clamping slot is formed on the upper cover, and the upper elastically deformable sound-absorbing member is clamped in the clamping slot.

As a further improvement of the present invention, the number of the upper elastically deformable sound-absorbing members is two, which are located on opposite sides.

As a further improvement of the present invention, a cavity is reserved in the guide core, and a mute buffer member is integrally injection-molded in the cavity, and the mute buffer member is exposed from the lower end of the guide core to form the lower elastically deformable noise reduction pieces.

As a further improvement of the present invention, the mute buffer is mainly composed of a central ferrule, two mute bars oppositely connected to both sides of the central ferrule, and two lower muting bars respectively connected to the lower ends of the two mute bars. It is composed of elastic deformation muffler.

As a further improvement of the present invention, a guide post is protruded upward on the base, and a guide hole is formed in the direction of the central axis of the guide post; the lower end of the guide core extends downward with a guide hole inserted into the guide hole. For a plug-in shaft, the central ferrule is arranged around the periphery of the plug-in shaft, a return spring is sleeved on the periphery of the plug-in shaft, and the upper end of the return spring is in contact with the central ferrule.

As a further improvement of the present invention, the lower elastically deformable sound-absorbing member is pasted or clamped on the lower end of the guide core.

As a further improvement of the present invention, the upper elastically deformable muffler and the lower elastically deformable muffler are both soft rubber.

The beneficial effect of the present invention is that: by arranging the upper elastically deformable sound-absorbing member on the upper cover, and setting the lower elastically deformable sound-absorbing member on the lower end of the guide core, the guide core is pressed to the working state, the guide core The lower elastically deformable muffler at the lower end touches the bottom wall (base) of the accommodating cavity, and the lower elastically deformable muffler buffers the impact force of the guide core moving down, reduces the generation of noise, and is close to the When the guide core is released to move up and reset to the initial state, it directly touches the upper elastically deformable noise-absorbing member on the upper cover, and the upper elastically deformable noise-absorbing member is used for the guide core. The impact force of moving up and reset is buffered to reduce the generation of noise, and it is close to silent, thus, it is beneficial to achieve the effect of mute.

The above is an overview of the new technical solution, and the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

1: Base

11: Guide post

12: Pilot hole

2: upper cover

3: accommodating cavity

4: guide core

41: Cavity

42: Plunger

43: Press the block

20: Opening

22: Card slot

5: Upper elastically deformable muffler

6: Lower elastically deformable muffler

7: Quiet buffer

71: Center Ferrule

72: Mute Bar

8: return spring

9: moving film

10: Still Film

Figure 1 is an exploded view of the new type.

Figure 2 is a schematic diagram of the external structure of the new model.

Figure 3 is a cross-sectional view of the new model.

FIG. 4 is a schematic structural diagram of the elastically deformable noise-absorbing element of the new model disposed on the upper cover.

Fig. 5 is a schematic structural diagram of the disassembled upper elastically deformable sound-absorbing member and the upper cover of the new model.

Figure 6 is an exploded view of the new silent buffer and the guide core.

FIG. 7 is a schematic diagram of the structure of the new type of silent buffering element disposed on the guide core.

Figure 8 is a schematic diagram of the structure of the new guide core.

Figure 9 is a schematic diagram of part of the structure of the new model.

In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementations of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring to FIGS. 1 to 3 , a new embodiment of the present invention provides a combined mute switch, which includes a base 1 and an upper cover 2 disposed above the base 1 . The upper cover 2 is combined with the base 1 to form a In the accommodating cavity 3, a guide core 4 is arranged in the accommodating cavity 3, and at the same time, an opening 20 is formed on the upper cover 2 for the upper end of the guide core 4 to pass through and press.

In this embodiment, at least one elastically deformable sound-absorbing member 5 is arranged on the upper cover 2 and located on the top wall of the accommodating cavity 3, and at least one elastically deformable sound-absorbing member 6 is arranged on the lower end of the guide core 4, The lower elastically deformable muffler 6 buffers and muffles the impact force of the guide core 4 moving downward, and the upper elastically deformable muffler 5 buffers and muffles the impact force of the guide core 4 moving up and back. In a natural state, the guide core 4 is in contact with the upper elastically deformable muffler 5 , and in a working state, the lower elastically deformable muffler 6 is in contact with the bottom wall of the accommodating cavity 3 . Therefore, when the guide core 4 is pressed down to the bottom wall of the accommodating cavity 3 and the conducting element inside the trigger switch is electrically connected, the switch is in the working state, and the lower elastically deformable muffler 6 at the lower end of the guide core 4 In contact with the bottom wall (base 1 ) of the accommodating cavity 3, the lower elastically deformable muffler 6 buffers the impact force of the guide core 4 moving down, reducing the generation of noise, and it is close to silent, so that the It is beneficial to achieve the effect of mute; and when the pressing of the guide core 4 is released and the guide core 4 moves up and resets to the initial state, the guide core 4 directly touches the upper elastically deformable muffler 5 on the upper cover 2, The upper elastically deformable muffler 5 buffers the impact force of the guide core 4 moving up and down, reducing the generation of noise and making it almost silent, so as to achieve the effect of mute.

There are the following three ways for the combination of the upper elastically deformable muffler 5 and the upper cover 2:

(1) The upper elastically deformable muffler 5 is integrally injected on the upper cover 2, as shown in FIG. 4 .

(2) The upper elastically deformable muffler 5 is pasted on the upper cover 2, as shown in FIG. 4 .

(3) A latching slot 22 is formed on the upper cover 2 , and the upper elastically deformable muffler 5 is clamped in the latching slot 22 , as shown in FIG. 5 .

No matter how the upper elastically deformable muffler 5 is combined with the upper cover 2, as long as the guide core 4 is moved up and returned to the top wall of the accommodating cavity 3, the directly touching component is the upper elastically deformable muffler Part 5 can achieve the effect of buffering and reducing sound, so as to achieve the mute effect.

Specifically, the number of the upper elastically deformable sound-absorbing members 5 is two, which are located on opposite sides. Therefore, the impact force when the guide core 4 is moved up and reset can be buffered from both sides of the guide core 4 .

There are the following three ways for the combination of the lower elastically deformable muffler 6 and the guide core 4:

(1) The lower elastically deformable muffler 6 is pasted on the lower end of the guide core 4 .

(2) The lower elastically deformable muffler 6 is clamped on the lower end of the guide core 4 .

(3) As shown in FIG. 6 to FIG. 8 , a cavity 41 is reserved in the guide core 4, and a silent buffer 7 is integrally injection-molded in the cavity 41. The silent buffer 7 is formed by the guide core. 4. The lower end is exposed to form the lower elastically deformable muffler 6. Specifically, the mute buffer 7 is mainly composed of a central ferrule 71 , two mute bars 72 connected to both sides of the central ferrule 71 , and two mute bars 72 connected to the lower ends of the two mute bars 72 respectively. The lower elastically deformable muffler is composed of 6 .

Regardless of the direction of the lower elastically deformable muffler 6 and the guide core 4 As long as the guide core 4 is moved down to the bottom wall of the accommodating cavity 3, the component that directly touches the bottom wall (the base 1) of the accommodating cavity 3 is the lower elastically deformable muffler 6, which can achieve Buffer, reduce the role of sound, in order to achieve the mute effect.

For the above-mentioned method (3), in this embodiment, a guide post 11 is protruded upward on the base 1, and a guide hole 12 is formed in the direction of the central axis of the guide post 11; the lower end of the guide core 4 is downward A plug-in shaft 42 is extended and inserted into the guide hole 12 , the center ferrule 71 is arranged around the periphery of the plug-in shaft 42 , and a return spring 8 is sleeved around the plug-in shaft 42 . The upper end of the return spring 8 is connected to the center The ferrule 71 contacts. The return spring 8 provides elastic restoring force for the upward movement and reset of the guide core 4. At the same time, under the action of the elastic restoring force of the return spring 8, the guide core 4 in the pressed state can be driven to move upward and reset. During the process of moving the core 4 downward and upward, the upper end of the return spring 8 is in contact with the center ferrule 71 of the silent buffer 7. Therefore, in the whole process, the center ferrule 71 is used for the return spring 8 The impact force with the guide core 4 is buffered to reduce the generation of noise, and it is close to silent, so as to achieve the effect of mute.

In order to further reduce the sound when pressing, the insertion shaft 42 at the lower end of the guide core 4 can be made shorter to prevent the insertion shaft 42 from hitting the bottom of the guide hole 12 to make noise when the guide core 4 moves down. The length of the insertion shaft 42 is designed as long as it can ensure that the insertion shaft 42 can move up and down in the guide hole 12 during the process of the guide core 4 moving up and down.

In this embodiment, the upper elastically deformable muffler member 5 , the lower elastically deformable muffler member 6 and the mute buffer member 7 are all soft glue, and the soft glue can play a good role in buffering and muffling.

In this embodiment, the conduction element structure of the switch can be realized by adopting the dynamic and static sheet structure, the light conduction structure, the magnetic conduction structure, the Hall conduction structure, etc. in the conventional key switches in the field. Below, the dynamic and static sheet structure is used as For example, the structure of the conduction element in this embodiment will be described:

As shown in FIG. 1 and FIG. 9 , a moving piece 9 and a static piece 10 are arranged on the base 1 and located in the accommodating cavity 3 . When the guide core 4 is in a natural unpressed state, the guide core 4 The pressing block 43 on the side pushes the moving piece 9 to the outside, so that the moving contact on the moving piece 9 is separated from the static contact on the static piece 10 to achieve the disconnection function. When the guide core 4 moves down, the pressing block 43 on the side of the guide core 4 releases the outward force on the moving piece 9 , so that the moving piece 9 is reset close to the static piece 10 , so that the moving piece 9 The conduction function can be achieved when the upper movable contact contacts with the static contact on the static sheet 10 .

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, the same or similar technical features as the above-mentioned embodiments of the present invention are adopted, and other structures obtained are all within the scope of the present invention. within the scope of protection.

1: Base

2: upper cover

4: guide core

20: Opening

5: Upper elastically deformable muffler

6: Lower elastically deformable muffler

8: return spring

9: moving film

10: Still Film

Claims (10)

A combined mute switch includes a base and an upper cover arranged above the base, the upper cover is combined with the base to form an accommodating cavity inside, a guide core is arranged in the accommodating cavity, and the upper cover is And at least one upper elastically deformable muffler is arranged on the top wall of the accommodating cavity, and at least one elastically deformable muffler is arranged at the lower end of the guide core; the lower elastically deformable muffler moves down the guide core. The impact force is buffered and silenced, and the impact force caused by the upward movement and reset of the guide core is buffered and silenced by the upper elastically deformable sound-absorbing member. The combined mute switch according to claim 1, wherein, in a natural state, the guide core is in contact with the upper elastically deformable muffler, and in a working state, the lower elastically deformable muffler is in contact with the accommodating cavity contact with the bottom wall. The combined mute switch according to claim 1, wherein the upper elastically deformable sound-absorbing member is integrally injection-molded on the upper cover, or is pasted on the upper cover. The combined mute switch according to claim 1, wherein a card slot is formed on the upper cover, and the upper elastically deformable muffler member is clipped and arranged in the card slot. The combined mute switch according to claim 1, wherein the number of the upper elastically deformable mufflers is two, which are located on opposite sides. The combined mute switch according to any one of claims 1 to 5, wherein a cavity is reserved in the guide core, and a mute buffer is integrally injection-molded in the cavity, and the mute buffer is formed by the The lower end of the guide core is exposed to form the lower elastically deformable muffler. The combined mute switch according to claim 6, wherein the mute buffer is mainly composed of a central ferrule, two mute bars oppositely connected to both sides of the central ferrule and connected to the lower ends of the two mute bars respectively It is composed of two pieces of the lower elastically deformable muffler. The combined mute switch according to claim 7, wherein a guide post is protruded upward on the base, and a guide hole is formed in the direction of the central axis of the guide post; the lower end of the guide core extends downward with a A plug-in shaft is inserted into the guide hole, the central ferrule is arranged around the periphery of the plug-in shaft, and a return spring is sleeved around the periphery of the plug-in shaft, and the upper end of the return spring is in contact with the central ferrule. The combined mute switch according to any one of claims 1 to 5, wherein the lower elastically deformable muffler is pasted or clamped on the lower end of the guide core. The combined mute switch according to any one of claims 1 to 5, wherein the upper elastically deformable muffler member and the lower elastically deformable muffler member are both soft glue.

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