TWM621749U - Dual conduction key switch - Google Patents

Abstract

The invention discloses a double conduction key switch, which comprises a base, a cover arranged above the base, and a guide core, and further comprises a first conduction component and a second conduction component which are triggered by the guide core and conduct successively . The double conduction key switch provided by this new model realizes the double conduction function of pressing once and the product performs two actions, which endows the key switch with more functions and gives users a better and better user experience.

Description

A double conduction key switch

The new model relates to the field of keyboard switches, in particular to a double-conduction key switch.

At present, in the key switches on the market, when a pressing operation is performed, the key switch is only turned on once, that is, the key switch only has a single conduction function. With the wide application of key switches, not only the performance requirements of the key switches are continuously improved, but also the functional requirements of the key switches are also getting higher and higher.

For example, it is required that when the key switch is pressed once, the key switch can be turned on twice. When used in games, the key switch with the function of pressing once and turning on twice is faster than the traditional key switch, giving players a better user experience.

However, there is no key switch on the market that can be turned on twice by pressing once.

In view of the above deficiencies, the purpose of this new model is to provide a double conduction key switch, which realizes the double conduction function of pressing once and the product performs two actions, giving the key switch more functions and giving users a better and better user experience.

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

A double conduction key switch includes a base, a cover arranged above the base, and a guide core, and also includes a first conduction component and a second conduction component that are triggered by the guide core and conduct successively.

As a further improvement of the present invention, at least one first conduction trigger piece corresponding to the first conduction component and at least one second conduction trigger piece corresponding to the second conduction component are respectively disposed on the guide core, the first turn-on trigger The conduction stroke for triggering the conduction of the first conduction element is different from the conduction stroke for triggering the conduction of the second conduction element by the second conduction triggering element.

As a further improvement of the present invention, a first inclined surface is formed on the side of the first conduction trigger, a second inclined surface is formed on the side of the second conduction trigger, and the first inclined surface is The inclination is greater than the inclination of the second inclined surface.

As a further improvement of the present invention, the first conduction component includes a first static piece and a first moving piece, a first static contact is arranged on the first static piece, and a first static contact is arranged on the first moving piece. A first movable contact corresponding to the first stationary contact, and at least one first contact bump corresponding to the first conduction trigger is formed on the first movable piece; the second conduction component includes a A second static piece and a second moving piece, a second static contact is arranged on the second static piece, a second moving contact corresponding to the second static contact is arranged on the second moving piece, And at least one second contact bump corresponding to the second conduction trigger is formed on the second moving piece.

As a further improvement of the present invention, the first conduction component is a light conduction component A that is electrically connected to the PCB board, the second conduction component is a light conduction component B that is electrically connected to the PCB board, and the first conduction triggers The second conduction trigger is a light blocking bump B, and the distance between the light blocking bump A and the light conduction component A is smaller than that between the light blocking bump B and the light conduction Distance between components B.

As a further improvement of the present invention, the height of the light blocking bump A is the same as the height of the light blocking bump B, and the height of the light conducting component A is higher than the height of the light conducting component B.

As a further improvement of the present invention, the height of the light blocking bumps A is lower than the height of the light blocking bumps B, and the height of the light conducting component A is the same as the height of the light conducting component B.

As a further improvement of the present invention, a first space for the light blocking bump A and the light blocking bump B to move up and down is respectively formed on the base.

As a further improvement of the present invention, the light-conducting component A has the same structure as the light-conducting component B, and includes a light-emitting element and a light-receiving element respectively.

As a further improvement of the present invention, the first conduction component is an inductive switch A electrically connected to the PCB board, the second conduction component is an inductive switch B electrically connected to the PCB board, and the first conduction triggers The second conduction trigger element is a magnet B, and the distance between the magnet A and the induction switch A is smaller than the distance between the magnet B and the induction switch B.

As a further improvement of the present invention, the height of the magnet A is the same as the height of the magnet B, and the height of the induction switch A is higher than the height of the induction switch B.

As a further improvement of the present invention, the height of the magnet A is lower than the height of the magnet B, and the height of the induction switch A is equal to the height of the induction switch B.

As a further improvement of the present invention, a protruding mounting portion A for embedding the magnet A and a protruding mounting portion B for embedding the magnet B are respectively protruded outward on the side of the guide core.

As a further improvement of the present invention, a second space for the protruding mounting portion A and the protruding mounting portion B to move up and down is respectively formed on the base, and the inductive switch A and the inductive switch B are respectively formed. It is arranged on the outer side of the second escape opening.

As a further improvement of the present invention, the inductive switch A is one of a magnetic inductor and a Hall element, and the inductive switch B is one of a magnetic inductor and the Hall element.

As a further improvement of the present invention, the cover is closed on the base to form an accommodating cavity, a sound-emitting elastic piece is arranged in the accommodating cavity, and a sound-emitting elastic piece is protruded on the side of the guide core toward the sound-emitting elastic piece A pressing bump is provided on the base, and a guiding inclined surface is arranged on the base. In a natural state, one end of the sounding elastic member extends below the pressing bump and above the guiding inclined surface.

As a further improvement of the present invention, the sounding elastic member is a torsion spring.

As a further improvement of the present invention, the sound-emitting elastic member is arranged on the the base or the cover.

As a further improvement of the present invention, an elastic moving piece is arranged on the base, and the elastic portion of the elastic moving piece extends below the sounding elastic member.

The beneficial effects of this new model are:

(1) By adding two conduction components in a single key switch, and by pressing the guide core to move down, the two conduction components are triggered to be turned on successively, thereby realizing the double conduction function, that is, pressing once, the product does The function of two actions gives the key switch more functions and gives users a better and better user experience.

(2) By adding the sounding elastic member and the elastic moving piece, the pressing sounding function is realized, the sound is loud, and the effect is good. At the same time, the pressing feeling is increased, and the user experience is improved.

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

1: Base

13: accommodating cavity

14: Guide slope

2: cover

21: Opening

3: guide core

31: The first turn-on trigger

311: First inclined plane

312: Light blocking bump A

313: Magnet A

32: The second conduction trigger

321: Second inclined plane

322: light blocking bump B

323: Magnet B

33: Protruding mounting part A

34: Protruding mounting part B

35: Press the bump

4: The first conduction component

41: The first still film

42: The first moving film

411: The first static contact

421: The first moving contact

422: first contact bump

43: Light conduction component A

431,531: Light Emitting Elements

432, 532: Light Receiving Elements

45: Induction switch A

5: Second conduction component

51: Second still film

52: Second Action

511: The second static contact

521: Second moving contact

522: second contact bump

53: Light conduction component B

6: Spring

7: PCB board

55: Induction switch B

8: Sound elastic parts

81: one end

9: Elastic moving piece

91: Elastic part

Figure 1 is an exploded view of the first implementation of the new model.

FIG. 2 is a schematic structural diagram of a new implementation of a guide core.

FIG. 3 is a schematic structural diagram of a split guide core according to the first embodiment of the new model.

FIG. 4 is a schematic structural diagram of a second conduction element according to the first embodiment of the novel.

FIG. 5 is a positional relationship diagram of the guide core, the first conducting element and the second conducting element in the initial unpressed state according to the first embodiment of the novel

FIG. 6 is a positional relationship diagram of the guide core, the first conduction component and the second conduction component when the guide core according to the first embodiment of the new model is pressed to the first stroke.

Fig. 7 is a diagram showing the positional relationship of the guide core, the first conduction component and the second conduction component when the guide core of the first embodiment of the new model is pressed to the second stroke

FIG. 8 is a schematic view of the structure of the guide core, the first conducting element and the second conducting element disposed on the base according to the first embodiment of the new model.

Fig. 9 is an overall cross-sectional view of the first embodiment of the novel.

FIG. 10 is an overall cross-sectional view of the first embodiment of the new model.

Figure 11 is an exploded view of the second embodiment of the new model.

FIG. 12 is a schematic diagram of the external structure of the second embodiment of the new model.

FIG. 13 is a cross-sectional view of the second embodiment of the new model.

FIG. 14 is a partial structural schematic diagram of the second embodiment of the new model.

FIG. 15 is a schematic diagram of another part of the structure of the second embodiment of the new model.

FIG. 16 is a schematic structural diagram of the base of the second embodiment of the new model.

Fig. 17 is an exploded view of the third embodiment of the new type.

FIG. 18 is a cross-sectional view of the third embodiment of the new model.

FIG. 19 is a partial structural schematic diagram of the third embodiment of the new model.

FIG. 20 is a schematic structural diagram of another part of the third embodiment of the new model.

FIG. 21 is a schematic structural diagram of the base of the third embodiment of the new model.

FIG. 22 is a schematic diagram of a part of the structure of the fourth embodiment of the new model.

FIG. 23 is a schematic diagram of the structure of the sound-emitting elastic member disposed on the cover according to the fourth embodiment 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.

Example 1:

Please refer to FIG. 1 , FIG. 9 and FIG. 10 , the present embodiment provides a dual-conduction key switch, which includes a base 1 , a cover 2 and a guide core 3 disposed above the base 1 , the cover 2 covers the An accommodating cavity is formed on the base 1, the guide core 3 is arranged in the accommodating cavity, and an opening 21 is formed on the cover 2 for the upper end of the guide core 3 to pass through, so as to press the guide core 3 downward. The guide core 3 triggers the conduction of the key switch.

The key switch of this embodiment also includes a first conducting element 4 and a second conducting element 5 that are triggered by the guide core 3 to conduct successively. When the conducting core 3 is pressed down, the first conducting element 4 and the second conducting element are connected to each other. The components 5 are turned on successively, that is, the conduction strokes of the first conduction component 4 and the second conduction component 5 are different in succession, so as to realize the double conduction function of the key switch.

Specifically, as shown in FIG. 2 , in this embodiment, at least one first conduction trigger 31 corresponding to the first conduction component 4 and at least one first conduction trigger 31 corresponding to the second conduction component 5 are respectively disposed on the guide core 3 . Corresponding to at least one second conduction trigger 32 , the conduction stroke of the first conduction trigger 31 to trigger the conduction of the first conduction member 31 is different from the conduction stroke of the second conduction trigger 32 to trigger the conduction of the second conduction member 5 . Therefore, when the guide core 3 is pressed down, the first conduction component 4 can be triggered by the first conduction trigger 31 to conduct first, and the second conduction trigger 32 can trigger the second conduction core 3 by continuing to press the guide core 3 The component 5 is turned on after being turned on.

At the same time, a first inclined surface 311 is formed on the side of the first conduction trigger 31 , a second inclined surface 321 is formed on the side of the second conduction trigger 32 , and the first inclined surface 311 is The inclination is greater than the inclination of the second inclined surface 321. Since the inclinations of the first inclined surface 311 and the second inclined surface 321 are different, the first conduction trigger member 31 and the second conduction trigger member 32 follow the When the guide core 3 moves down, the first conduction component 4 and the second conduction component 5 can be connected in sequence.

In this embodiment, the first conduction component 4 and the second conduction component 5 are both the static and moving piece conduction structure, and the specific structure is as follows:

As shown in FIG. 3 , the first conducting element 4 includes a first static piece 41 and a first moving piece 42 , and a first static contact 411 is disposed on the first static piece 41 . A first movable contact 421 corresponding to the first static contact 411 is disposed on the plate 42 , and at least one first contact corresponding to the first conduction trigger 31 is formed on the first movable plate 42 Contact bump 422 . Specifically, the number of the first contact bump 422 and the number of the first conduction trigger 31 can be set to two respectively, and they are set in a one-to-one correspondence. For the installation of the first static piece 41 and the first moving piece 42 , the first static piece 41 and the first moving piece 42 can be installed on the base 1 and located on the guide core 3 at the first On the outside of the conduction trigger 31 , specifically, the first static piece 41 is located on the inside, and the first moving piece 42 is located on the outside, as shown in FIG. 8 . At the same time, the lower ends of the first static piece 41 and the first moving piece 42 pass through the lower end surface of the base 1 and are electrically connected to the PCB. During the process of the guide core 3 moving up and down, the first conduction component 4 does not undergo longitudinal displacement.

As shown in FIG. 4 , the second conducting element 5 includes a second static sheet 51 With a second moving piece 52 , a second stationary contact 511 is arranged on the second stationary piece 51 , and a second moving piece 51 corresponding to the second stationary contact 511 is arranged on the second moving piece 52 . At least one second contact bump 522 corresponding to the second conduction trigger 32 is formed on the second moving piece 52 . Specifically, the number of the second contact bump 522 and the number of the second conduction trigger 32 can be set to two respectively, and they are set in a one-to-one correspondence. For the installation of the second static piece 51 and the second moving piece 52 , the second static piece 51 and the second moving piece 52 can be installed on the base 1 and located on the guide core 3 at the second On the outside of the conduction trigger 32 , specifically, the second static piece 51 is located on the inside, and the second movable piece 52 is located on the outside, as shown in FIGS. 8 and 9 . At the same time, the lower ends of the second static piece 51 and the second moving piece 52 pass through the lower end surface of the base 1 and are electrically connected to the PCB board. During the process of the guide core 3 moving up and down, the second conducting component 5 does not undergo longitudinal displacement.

In this embodiment, the first moving piece 42 and the second moving piece 52 are both made of a material with certain elasticity, such as stainless steel.

In the initial unpressed state, as shown in FIG. 5 , the first conduction trigger 31 pushes the first contact bump 422 on the first moving piece 42 outward, and the upper part of the first moving piece 42 bends outwards The fold is deformed, so that the first movable contact 421 is separated from the first stationary contact 411 , that is, the first conducting component 4 is in a non-conducting state. At the same time, the second conduction trigger 32 pushes the second contact bump 522 on the second moving piece 52 outward, and the upper part of the second moving piece 52 bends outward and deforms, so that the second moving contact 521 is separated from the second stationary contact 511 , that is, the second conducting element 5 is in a non-conducting state.

When the guide core 3 is pressed down, as shown in FIG. 6 , the guide core 3 moves down continuously. When the first inclined surface 311 is in contact, under the guiding action of the first inclined surface 311, the upper part of the first movable piece 42 rebounds inwardly until the first movable contact 421 contacts with the first stationary contact 411, Then the first conduction element 4 is turned on. During this process, the second contact bump 522 is in contact with the second inclined surface 321 on the second conduction trigger 32 . Under the guiding action of the second inclined surface 321 , the upper part of the second moving piece 52 faces inward. rebound, and since the inclination of the first inclined surface 311 is greater than that of the second inclined surface 321, the It must be that the first movable contact 421 and the first stationary contact 411 are in contact with the first conduction, and when the first conduction element 4 is just turned on, the second movable contact 521 has not yet contacted the second stationary contact 511. get in touch with. That is, during the first stroke of the guide core 3 moving downward, the first conducting element 4 is conducting, while the second conducting element 5 is not conducting.

Continue to press the guide core 3 downward. As shown in FIG. 7 , the guide core 3 continues to move downward. Under the guiding action of the first inclined surface 311, the upper part of the first moving piece 42 continues to rebound inward, and the first moving piece 42 continues to rebound inward. A movable contact 421 is always in contact with the first stationary contact 411 , so the first conducting element 4 is always conducting. During this process, under the guiding action of the second inclined surface 321, the upper part of the second movable piece 52 continues to rebound inward until the second movable contact 521 contacts the second stationary contact 511, and the first The two conduction components 5 are turned on. That is, during the second stroke of the downward movement of the guide core 3, the first conducting element 4 is always conducting, and the second conducting element 5 starts conducting. In this way, the first conduction element 4 and the second conduction element 5 are successively connected.

During the above process of pressing the guide core 3 downward, the spring 6 provided between the guide core 3 and the base 1 is compressed.

When the pressing of the guide core 3 is released, the guide core 3 moves up and resets under the action of the elastic restoring force of the spring 6 , because the inclination of the first inclined surface 311 is greater than the inclination of the second inclined surface 321 , the second conducting element 5 is disconnected first, and the first conducting element 4 is then disconnected, returning to the initial unpressed state.

Embodiment 2:

The main difference between this embodiment and the first embodiment is that: please refer to FIG. 11 to FIG. 14 , the first conducting component 4 is a light conducting component A 43 electrically connected to the PCB board 7 , and the second conducting component 5 is an electrical conducting component A 43 . The light conduction component B 53 connected to the PCB board 7, the first conduction trigger 31 is a light blocking bump A 312, and the second conduction trigger 32 is a light blocking bump B 322, the light blocking bump A The distance between 312 and the light conducting element A43 is smaller than the distance between the light blocking bump B 322 and the light conducting element B 53 . When the guide core 3 is pressed to move downward, the light blocking bump A 312 and the light blocking bump B 322 move downward. Due to the distance between the light blocking bump A 312 and the light conducting element A43, is smaller than the distance between the light blocking bump B322 and the light conducting element B53, Therefore, the light blocking bump A 312 first reaches the light conducting element A43 and blocks the light path of the light conducting element A43, and the light blocking bump B 322 later reaches the light conducting element B 53 and blocks the light The light path of component B 53 is turned on. Therefore, compared with the light conducting element B 53, the light conducting element A43 generates a signal that the light path is blocked first, that is, the light conducting element A43 is turned on first, and the light conducting element B 53 is turned on later. conduction purpose. In this embodiment, the double conduction function of the key switch is realized by different conduction strokes of successive conduction.

For the distance between the light blocking bump A 312 and the light conduction component A43, which is smaller than the distance between the light blocking bump B 322 and the light conduction component B 53, the following two methods can be adopted:

(1) The height of the light blocking bump A 312 is the same as the height of the light blocking bump B 322, and the height of the light conducting element A43 is higher than the height of the light conducting element B 53, as shown in FIG. 13 to FIG. 16 shown. When the guide core 3 is pressed to move downward, the light blocking bump A 312 and the light blocking bump B 322 move downward along with it. During the downward movement, the light blocking bump A 312 and the light blocking bump B 322 move downward. The height of the B 322 is always the same. Since the height of the light conducting element A43 is higher than the height of the light conducting element B 53, the light blocking bump A 312 first reaches the light conducting element A43 and blocks the light path of the light conducting element A43. The light blocking bump B 322 then reaches the light conducting element B 53 and blocks the light path of the light conducting element B 53 . Therefore, compared with the light conducting element B 53, the light conducting element A 43 generates a signal that the light path is blocked first, that is, the light conducting element A43 is turned on first, and the light conducting element B 53 is turned on later, thereby achieving The purpose of successively conducting.

(2) The height of the light blocking bump A 312 is lower than the height of the light blocking bump B 322 , and the height of the light conducting element A43 is the same as the height of the light conducting element B 53 . In the specific structural design, it is only necessary to design the height of the light blocking bump A 312 on the guide core 3 to be lower than the position height of the light blocking bump B 322 on the guide core 3 . When the guide core 3 is pressed to move downward, the light blocking bump A 312 and the light blocking bump B 322 move down synchronously with the guide core 3. During the downward movement, the light blocking bump A 312 The position height of is always lower than the position height of the light blocking bump B 322 . Since the height of the light conducting element A43 is equal to the height of the light conducting element B 53, the light blocking bump A 312 first reaches the light conducting element A43 and blocks the light path of the light conducting element A43. The light bump B 322 then reaches the light conducting element B 53 and blocks the light path of the light conducting element B 53 . Therefore, compared with the light conducting element B 53, the light conducting element A 43 generates a signal that the light path is blocked first, that is, the light conducting element A43 is turned on first, and the light conducting element B 53 is turned on later, thereby achieving The purpose of successively conducting.

In order to facilitate the up and down movement of the light blocking bump A 312 and the light blocking bump B 322 , in this embodiment, the base 1 is respectively formed with the light blocking bump A 312 and the light blocking bump B 322 up and down for the light blocking bump A 312 and the light blocking bump B 322 A movable first opening 11 is shown in FIG. 15 and FIG. 16 .

In this embodiment, the light conducting element A 43 and the light conducting element B 53 have the same structure, and include a light emitting element (431, 531) and a light receiving element (432, 532) respectively. In the case where there is no structural blockage between the light emitting element (431, 531) and the light receiving element (432, 532), the light emitting element (431, 531) emits a light signal, the light receiving element (432, 532) receives the light signal, and when the two When the structure is blocked between them, the light receiving element (432, 532) will not be able to receive the light signal emitted by the light emitting element (431, 531), that is, the signal that the light path is blocked occurs.

A key switch using a light conduction component is an optical axis key switch. Its working principle is:

In the natural state, the light-blocking bumps on the guide core 3 do not reach the light-conducting component, and the light-receiving element in the light-conducting component can normally receive the light signal emitted by the light-emitting element, which can pass through the PCB board 7 The circuit on the preset, in this case, the key switch is in the open state.

When the guide core 3 is pressed down, the guide core 3 drives the light blocking bump to move down synchronously until the light blocking bump protrudes between the light emitting element and the light receiving element, blocking the light emitting element The light path between the light receiving element and the light receiving element makes the light receiving element unable to receive the light signal emitted by the light emitting element, that is, a signal that the light path is blocked is generated, and the key switch is set to be turned on.

When the pressing of the guide core 3 is released, the elastic restoring force of the spring 6 acts, the guide core 3 moves up and resets, and drives the light blocking bump to move upward. When the light blocking bump leaves the light emitting element When the light-receiving element is in contact with the light-receiving element, the light-receiving element receives the light signal sent by the light-emitting element again, and the key switch returns to the off state.

In the present embodiment, since the distance between the light blocking bump A 312 and the light conducting element A43 is smaller than the distance between the light blocking bump B 322 and the light conducting element B 53 , the distance between the light blocking bump B 322 and the light conducting element B 53 is When the core 3 is pressed down, the light blocking bump A312 first protrudes between the light emitting element 431 and the light receiving element 432, blocking the light signal emitted by the light emitting element 431 to the light receiving element 432, and The light blocking bump B 322 then blocks the light signal emitted by the light emitting element 531 to the light receiving element 532, that is, the light conduction element A 43 produces a light path that is blocked earlier than the light conduction element B 53 signal, that is, the light conduction component A 43 is turned on first, and the light conduction component B 53 is turned on later, thereby achieving the purpose of successive conduction.

When the pressing of the guide core 3 is released and the guide core 3 is moved up and reset, the light blocking bump B 322 first leaves the light conduction element B 53, and the light path generated by the light conduction element B 53 is blocked. The signal of the light conduction element A 43 disappears first, and the signal generated by the light conduction element A 43 that the light path is blocked disappears, that is, the light conduction element B 53 is disconnected earlier than the light conduction element A 43 .

Embodiment three:

The main difference between this embodiment and the first embodiment is: please refer to FIG. 17 to FIG. 20 , the first conducting element 4 is an inductive switch A 45 electrically connected to the PCB board 7 , and the second conducting element 5 is Electrically connected to an induction switch B 55 of the PCB board 7, the first conduction trigger 31 is a magnet A 313, the second conduction trigger 32 is a magnet B 323, the magnet A 313 and the induction switch A 45 are connected The distance between them is smaller than the distance between the magnet B 323 and the induction switch B 55 . When the guide core 3 is pressed to move downward, the magnet A 313 and the magnet B 323 move downward, because the distance between the magnet A 313 and the induction switch A 45 is smaller than that between the magnet B 323 and the induction switch The distance between B 55, therefore, the induction switch A 45 senses the magnet A 313 first Magnetic, and the induction switch B 55 senses the magnetism of the magnet B 323, that is, the first conduction element 4 is turned on first, and the second conduction element 5 is turned on later, so that the first conduction element 4 and the second conduction element are realized. 5 has the purpose of turning on. Therefore, in this embodiment, the double conduction function of the key switch is realized by different conduction strokes in which the first conduction member 4 and the second conduction member 5 are successively turned on.

For the distance between the magnet A 313 and the inductive switch A45 to be smaller than the distance between the magnet B 323 and the inductive switch B 55, the following two methods can be adopted:

(1) The height of the magnet A 313 is the same as the height of the magnet B 323 , and the height of the induction switch A 45 is higher than that of the induction switch B 55 , as shown in FIGS. 18 to 21 . When the guide core 3 is pressed to move downward, the magnet A 313 and the magnet B 323 move down synchronously with the guide core 3. During the downward movement, the heights of the magnet A 313 and the magnet B 323 are always the same. Since the height of the induction switch A 45 is higher than the height of the induction switch B 55 , the magnet A 313 will first approach the induction switch A 45 relative to the magnet B 323 , and the induction switch A 45 will first sense the magnet A 313, and the induction switch B 55 then senses the magnetism of the magnet B 323, thereby achieving the purpose of conducting the first conducting element 4 first and the second conducting element 5 conducting later.

(2) The height of the magnet A 313 is lower than the height of the magnet B 323 , and the height of the induction switch A 45 is equal to the height of the induction switch B 55 . In the specific structural design, it is only necessary to design the height of the position of the magnet A 313 on the guide core 3 to be lower than the height of the position of the magnet B 323 on the guide core 3 . When the guide core 3 is pressed to move downward, the magnet A 313 and the magnet B 323 move down synchronously with the guide core 3. During the downward movement, the position height of the magnet A 313 is always lower than that of the magnet B 323 position height. Since the height of the sensor switch A 45 is equal to the height of the sensor switch B 55 , the magnet A 313 will approach the sensor switch A 45 first relative to the magnet B 323 , and the sensor switch A 45 will first sense the magnet The magnetism of A 313, and the induction switch B 55 then senses the magnetism of the magnet B 323, thereby realizing the purpose of conducting the first conducting element 4 first and the second conducting element 5 conducting later.

As for the installation method of the magnet A 313 and the magnet B 323 on the guide core 3, as shown in FIG. 19 and FIG. 20 , in this embodiment, the sides of the guide core 3 respectively protrude outward for the magnet A 313 A protruding mounting portion A 33 is embedded and a protruding mounting portion B 34 for the magnet B 323 to be embedded. When the protruding mounting portion A 33 and the protruding mounting portion B 34 move up and down with the guide core 3 as a whole, the magnet A 313 and the magnet B 323 also move up and down synchronously to achieve the purpose of double conduction.

In order to facilitate the protruding mounting portion A 33 to drive the magnet A 313 and the protruding mounting portion B 34 to drive the magnet B 323 to move up and down, the base 1 is respectively formed with the protruding mounting portion A in this embodiment. 33 and the protruding mounting portion B 34 move up and down a second opening 12, the induction switch A 45 and the induction switch B 55 are arranged on the outer edge of the second opening 12, as shown in FIG. 21 Show. When the protruding mounting portion A 33 drives the magnet A 313 and the protruding mounting portion B 34 drives the magnet B 323 to move up and down, the magnet A is connected to the magnet A by the induction switch A 45 on the side of the second opening 12. The magnetism of the magnet B 313 is sensed, and the induction switch B 55 senses the magnetism of the magnet B 323 to achieve the purpose of double conduction.

In this embodiment, the induction switch A 45 is one of a magnetic sensor and a Hall element. When the induction switch A 45 is a magnetic sensor, the magnet A 313 and the induction switch A 45 are combined to form a magnetic induction switch. When the sensor switch A 45 is a Hall element, the magnet A 313 and the sensor switch A 45 are combined to form the Hall sensor switch. Similarly, the inductive switch B 55 is one of a magnetic sensor and the Hall element. When the induction switch B 55 is a magnetic sensor, the magnet B 323 and the induction switch B 55 are combined to form a magnetic induction switch. When the sensor switch B 55 is a Hall element, the magnet B 323 and the sensor switch B 55 combine to form a Hall sensor switch.

Specifically, the working principle of the magnetic induction switch is as follows:

In the natural state, when the distance between the magnet on the guide core 3 and the magnetic inductor on the PCB board 7 is far enough, the magnetic inductor on the PCB board 7 cannot sense the magnetism of the magnet on the guide core 3, and the circuit is disconnected , that is, the key switch is off.

When the guide core 3 is pressed down, the guide core 3 drives the magnet to move down When the guide core 3 is pressed down to a certain stroke, and the magnet and the magnetic inductor on the PCB board 7 reach a certain distance, the magnetic inductor senses the magnetism, and the circuit is turned on, that is, the key switch is in an on state.

When the pressing of the guide core 3 is released, the elastic restoring force of the spring 6 acts, the guide core 3 moves up and resets, and drives the magnet to move up. When the distance between the magnet and the magnetic inductor is far enough, the When the magnetic sensor on the PCB board 7 cannot sense the magnetism of the magnet, the circuit is disconnected, and the key switch returns to the disconnected state.

In this embodiment, since the distance between the magnet A 313 and the induction switch A 45 is smaller than the distance between the magnet B 323 and the induction switch B 55 , when the guide core 3 is pressed down , the magnet A 313 first approaches the inductive switch A 45 , the first conduction element 4 is turned on first, and the second conduction element 5 is turned on later, so as to achieve the purpose of successive conduction. When releasing the pressing on the guide core 3 and the guide core 3 moves up and resets, the magnet B 323 is first away from the inductive switch B 55 , the second conducting element 5 is disconnected first, and the first conducting element 4 is then disconnected open.

Specifically, the working principle of the Hall sensor switch is as follows:

In the natural state, when the distance between the magnet on the guide core 3 and the Hall element on the PCB board 7 is far enough, the Hall element on the PCB board 7 cannot sense the magnetism of the magnet on the guide core 3, that is, the There is no signal generated by the Hall element, and the circuit is disconnected, that is, the key switch is in the disconnected state

When the guide core 3 is pressed down, the guide core 3 drives the magnet to move downward. When the guide core 3 is pressed down to a certain stroke, the magnet and the Hall element on the PCB board 7 reach a certain level. When the distance is changed, the Hall element senses magnetism, that is, the Hall element generates a signal (for example, a signal with a change in resistance value, a signal with a change in voltage value, etc.), and as the magnetic force increases, the signal value also increases, and In order to increase linearly and output electrical performance, the circuit is turned on, that is, the key switch is in a conductive state.

When the pressing of the guide core 3 is released, the elastic restoring force of the spring 6 acts, the guide core 3 moves up and resets, and drives the magnet to move up. When the distance between the magnet and the Hall element is far enough, the When the Hall element on the PCB board 7 cannot sense the magnetism of the magnet, that is, the Hall element does not generate a signal, the circuit is disconnected, and the key is pressed. The switch returns to the off state.

In this embodiment, since the distance between the magnet A 313 and the induction switch A 45 is smaller than the distance between the magnet B 323 and the induction switch B 55 , when the guide core 3 is pressed down , the magnet A 313 first approaches the inductive switch A 45 , the first conduction element 4 is turned on first, and the second conduction element 5 is turned on later, so as to achieve the purpose of successive conduction. When the pressing of the guide core 3 is released and the guide core 3 moves up and resets, the magnet B 323 first moves away from the inductive switch B 55 , the second conducting element 5 is disconnected first, and the first conducting element 4 is turned off first. disconnect.

Embodiment 4:

The main difference between this embodiment and any one of Embodiments 1 to 3 is that: as shown in FIG. 22 and FIG. 23 , the cover 2 is covered on the base 1 to form an accommodating cavity 13 , in which a accommodating cavity 13 is formed. A sound-emitting elastic member 8 is arranged in the accommodating cavity 13, a pressing bump 35 is protruded toward the sound-emitting elastic member 8 on the side of the guide core 3, and a guiding inclined surface 14 is arranged on the base 1. In a natural state, one end 81 of the sounding elastic member 8 extends below the pressing protrusion 35 and is located above the guiding slope 14 . Specifically, the sounding elastic member 8 is a torsion spring. Specifically, the torsion spring is made of stainless steel, that is, a stainless steel torsion spring.

For the specific installation of the sound-emitting elastic member 8 , the sound-emitting elastic member 8 in this embodiment is disposed on the base 1 or the cover 2 . Specifically, as shown in FIG. 23 , the main body of the torsion spring is limited to the cover 2 , and of course, the main body of the torsion spring can also be limited to the base 1 .

When the guide core 3 is pressed down, the pressing projection 35 is driven to move down, the pressing projection 35 presses one end 81 of the sounding elastic member 8 (torsion spring), and when it is pressed down to a certain position, the base 1 The upper guide slope 14 guides one end 81 of the sounding elastic member 8 to escape from the pressing bump 35, and one end 81 of the sounding elastic member 8 bounces due to the release of potential energy and knocks the base 1, the cover 2 and/or the Or press the bump 35 to make a sound, so as to realize the function of pressing the sound, the sound is loud, and the effect is good.

At the same time, in order to further improve the pressing feel, in this embodiment, an elastic moving piece 9 is provided on the base 1, and the elastic portion 91 of the elastic moving piece 9 extends to the Below the sounding elastic member 8. When the guide core 3 is pressed down to drive the pressing bump 35 to move downward, the pressing bump 35 pushes down one end 81 of the sounding elastic member 8. When the one end 81 of the sounding elastic member 8 is pressed down, it acts on the elastic The moving piece 9, the elastic moving piece 9 is deformed, thereby increasing the pressing feel.

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: cover

21: Opening

3: guide core

4: The first conduction component

41: The first still film

42: The first moving film

5: Second conduction component

51: Second still film

52: Second Action

6: Spring

Claims (19)

A double conduction key switch includes a base, a cover arranged above the base, and a guide core, and also includes a first conduction component and a second conduction component that are triggered by the guide core and conduct successively. The double conduction key switch according to claim 1, at least one first conduction trigger corresponding to the first conduction component and at least one first conduction trigger corresponding to the second conduction component are respectively disposed on the guide core. Two conduction triggers, the conduction stroke of the first conduction trigger to trigger the conduction of the first conduction component is different from the conduction stroke of the second conduction trigger to trigger the conduction of the second conduction component. The double conduction key switch according to claim 2, wherein a first inclined surface is formed on the side of the first conduction trigger member, and a second inclined surface is formed on the side of the second conduction trigger member, And the inclination of the first inclined surface is greater than the inclination of the second inclined surface. The double conduction key switch according to claim 2 or 3, wherein the first conduction component comprises a first static piece and a first moving piece, a first static contact is arranged on the first static piece, and a first static contact is arranged on the first static piece. A first movable contact corresponding to the first stationary contact is disposed on the first moving piece, and at least one first contact bump corresponding to the first conduction trigger is formed on the first moving piece ; The second conducting component includes a second static piece and a second moving piece, a second static contact is arranged on the second static piece, and a second static contact is arranged on the second moving piece A corresponding second movable contact, and at least one second contact bump corresponding to the second conduction trigger is formed on the second movable piece. The double conduction key switch according to claim 2, wherein the first conduction component is a light conduction component A electrically connected to the PCB board, and the second conduction component is a light conduction component B electrically connected to the PCB board, The first conduction trigger is a light blocking bump A, the second conduction trigger is a light blocking bump B, and the distance between the light blocking bump A and the light conduction component A is smaller than the light blocking bump The distance between the block B and the light conduction assembly B. The double conduction key switch according to claim 5, wherein the light blocking bumps A The height of A is the same as the height of the light blocking bump B, and the height of the light conducting component A is higher than the height of the light conducting component B. The double conduction key switch according to claim 5, wherein the height of the light blocking bump A is lower than the height of the light blocking bump B, and the height of the light conduction component A is the same as the height of the light conduction component B same. The double-conduction key switch according to claim 5, wherein a first opening for the light blocking bump A and the light blocking bump B to move up and down is respectively formed on the base. The double conduction key switch according to claim 5, wherein the light conduction component A has the same structure as the light conduction component B, and includes a light emitting element and a light receiving element respectively. The double conduction key switch according to claim 2, wherein the first conduction component is an inductive switch A electrically connected to the PCB board, and the second conduction component is an inductive switch electrically connected to the PCB board B, the first conduction trigger is magnet A, the second conduction trigger is magnet B, the distance between the magnet A and the induction switch A is smaller than the distance between the magnet B and the induction switch B . The double-conduction key switch according to claim 10, wherein the height of the magnet A is the same as the height of the magnet B, and the height of the induction switch A is higher than the height of the induction switch B. The double-conduction key switch according to claim 10, wherein the height of the magnet A is lower than the height of the magnet B, and the height of the induction switch A is equal to the height of the induction switch B. The double-conduction key switch according to claim 10, wherein a protruding mounting portion A for embedding the magnet A and a protruding mounting portion for embedding the magnet B are respectively protruded outward on the side of the guide core part B. The double-conduction key switch as claimed in claim 13, wherein a second opening for the protruding mounting portion A and the protruding mounting portion B to move up and down is respectively formed on the base, and the induction The switch A and the inductive switch B are arranged on the outer side of the second escape opening. The double-conduction key switch according to claim 10, wherein the inductive switch A is one of a magnetic sensor and a Hall element, and the inductive switch B is one of a magnetic sensor and a Hall element. The double-conduction key switch according to claim 1, wherein the cover is closed on the base to form a accommodating cavity, a sound-emitting elastic member is arranged in the accommodating cavity, and a side edge of the guide core protrudes There is a pressing bump facing the sounding elastic piece, and a guiding inclined surface is arranged on the base. In a natural state, one end of the sounding elastic piece extends below the pressing bump and is located above the guiding inclined surface . The double-conduction key switch according to claim 16, wherein the sounding elastic member is a torsion spring. The double-conduction key switch according to claim 16, wherein the sound-emitting elastic member is disposed on the base or the cover. The double-conduction key switch according to claim 16, wherein an elastic moving piece is arranged on the base, and the elastic part of the elastic moving piece extends below the sounding elastic member.

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