JP3234596U - Double on key switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double-on key switch which realizes a double-on function in which a product operates twice by one pressing and has many functions in a key switch.
A double-on-key switch includes a base 1, a cover 2 provided above the base 1, and a guide core 3. The cover 2 is covered with the base 1 to form a storage chamber, and a guide is formed. The core 3 is provided in the accommodation chamber, and the cover 2 is provided with an opening 21 through which the upper end of the guide core 3 passes, thereby pressing the guide core 3 downward and triggering the key switch to be turned on. It further includes a first conduction unit 4 and a second conduction unit 5 that are triggered by the guide core 3 and conduct back and forth, and when the guide core 3 is pressed downward, the first conduction unit 4 and the second conduction unit 4 and the second conduction unit 5. The conduction unit 5 conducts in the front-rear direction, that is, the on-strokes in which the first conduction unit 4 and the second conduction unit 5 conduct in the front-rear direction are different, and the double-on function of the key switch is realized.
[Selection diagram] Fig. 1

Description

The present invention relates to the field of keyboard switches, especially double-on-key switches.

Currently, the key switches on the market are turned on only once when one pressing operation is performed. That is, the key switch has only a single on function. However, with the widespread application of people to key switches, not only is the demand for key switch performance increasing, but the demand for key switch functions is also increasing.

For example, when the key switch is pressed once, the key switch is required to be turned on twice. When applied to games, keyswitches with the ability to turn on twice with a single press are faster than traditional keyswitches, providing a better user experience for the player.

However, at present, there is no commercially available key switch that can be turned on twice with one press.

In response to the above drawbacks, the purpose of the present invention is to realize a double-on function in which the product operates twice with one press, and the key switch has more functions to give the user a better experience. To provide an on-key switch.

The technical solutions used in the present invention to achieve the above object are:

A double-on-key switch that includes a base, a cover provided above the base, and a guide core, further including a first conduction unit and a second conduction unit that are triggered by the guide core and conduct back and forth. It is characterized by that.

As a further improvement of the present invention, the guide core includes at least one first conduction trigger member corresponding to the first conduction unit and at least one second conduction trigger member corresponding to the second conduction unit. The on-stroke in which the first conduction trigger member triggers the continuity of the first conduction unit is different from the on-stroke in which the second conduction trigger member triggers the continuity of the second conduction unit.

As a further improvement of the present invention, a first inclined surface is formed on the side side of the first conduction trigger member, a second inclined surface is formed on the side side of the second conduction trigger member, and the second inclined surface is formed. The inclination of the inclined surface of 1 is larger than the inclination of the second inclined surface.

As a further improvement of the present invention, the first conduction unit includes a first fixed piece and a first movable piece, the first fixed piece being provided with a first fixed contact, the first fixed piece. The movable piece is provided with a first movable contact corresponding to the first fixed contact, and the first movable piece is formed with at least one first contact projection corresponding to the first conduction trigger member. The second conduction unit includes a second fixed piece and a second movable piece, the second fixed piece is provided with a second fixed contact, and the second movable piece is provided with a second fixed contact. A corresponding second movable contact is provided, and the second movable piece is formed with at least one second contact projection corresponding to the second conduction trigger member.

As a further improvement of the present invention, the first conduction unit is a light conduction unit A electrically connected to the PCB substrate, and the second conduction unit is a light conduction unit B electrically connected to the PCB substrate. The first conduction trigger member is a light-shielding protrusion A, the second conduction trigger member is a light-shielding protrusion B, and the distance between the light-shielding protrusion A and the light conduction unit A is the light-shielding protrusion B and light. It is smaller than the distance to the conduction unit B.

As a further improvement of the present invention, the height of the light-shielding protrusion A is the same as the height of the light-shielding protrusion B, and the height of the light conduction unit A is higher than the height of the light conduction unit B.

As a further improvement of the present invention, the height of the light-shielding protrusion A is lower than the height of the light-shielding protrusion B, and the height of the light conduction unit A is the same as the height of the light conduction unit B.

As a further improvement of the present invention, the base is formed with a first evacuation port for the light-shielding protrusion A and the light-shielding protrusion B to move up and down, respectively.

As a further improvement of the present invention, the light conduction unit A and the light conduction unit B have the same structure and include a light emitting element and a light receiving element, respectively.

As a further improvement of the present invention, the first conduction unit is an induction switch A electrically connected to the PCB substrate, and the second conduction unit is an induction switch B electrically connected to the PCB substrate. The first conduction trigger member is a magnet A, the second conduction trigger member is a magnet B, and the distance between the magnet A and the induction switch A is larger than the distance between the magnet B and the induction switch B. small.

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 into which the magnet A is fitted and a protruding mounting portion B into which the magnet B is fitted are projected outward from each side of the guide core.

As a further improvement of the present invention, the base is formed with a second evacuation port for the projecting mounting portion A and the projecting mounting portion B to move up and down, respectively, and the induction switch A and the induction switch B are provided with a second evacuation port. It is provided on the outer side of the mouth.

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

As a further improvement of the present invention, the cover is covered with a base to form a storage chamber, a sounding elastic member is provided in the storage chamber, and a pressing protrusion toward the sounding elastic member is provided on the side side of the guide core. A guide lamp is provided on the base so as to project, and in a natural state, one end of the sounding elastic member extends below the pressing protrusion and is located above the guide lamp.

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 sounding elastic member is provided on the base or cover.

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

The beneficial effects of the present invention are as follows.
(1) Two conduction units are added to one key switch, and by pressing the guide core and moving it downward, the two conduction units are triggered and conduct back and forth, realizing a double-on function. That is, it realizes the function that the product operates twice with one press, gives the key switch more functions, and gives the user a better experience.
(2) Sounding By adding elastic members and elastic movable pieces, a pressing sounding function is realized, the sound is loud and the effect is good, and the actual feeling at the time of pressing is improved to improve the user experience.
The above is an outline of the technical solution of the present invention, and the present invention will be further described below with reference to the drawings and specific embodiments.

It is an exploded view of Example 1. FIG. It is a structural schematic diagram of the guide core in Example 1. FIG. It is a structural schematic diagram of the 1st conduction unit in Example 1. FIG. It is a structural schematic diagram of the 2nd conduction unit in Example 1. FIG. It is a positional relationship diagram of the guide core, the first conduction unit and the second conduction unit in the initial unpressed state in the first embodiment. It is a positional relationship diagram of the guide core, the first conduction unit and the second conduction unit when the guide core in the first embodiment is pressed by the stroke of the first stage. It is a positional relationship diagram of the guide core, the first conduction unit and the second conduction unit when the guide core in the first embodiment is pressed by the second stroke. It is a schematic diagram of the structure in which the guide core, the first conduction unit and the second conduction unit in the first embodiment are provided on the base. It is an overall sectional view of Example 1. FIG. It is a schematic diagram of the external structure of Example 1. It is an exploded view of Example 2. FIG. It is a schematic diagram of the external structure of Example 2. It is sectional drawing of Example 2. FIG. It is a schematic diagram of a partial structure of Example 2. It is a schematic diagram of the other partial structure of Example 2. It is a structural schematic diagram of the base in Example 2. FIG. It is an exploded view of Example 3. FIG. It is sectional drawing of Example 3. FIG. It is a schematic diagram of a partial structure of Example 3. It is a schematic diagram of the other partial structure of Example 3. It is a structural schematic diagram of the base in Example 3. FIG. It is a schematic diagram of a partial structure of Example 4. It is a schematic diagram of the structure in which the sounding elastic member in Example 4 is provided in the cover.

In order to further explain the technical means and effects adopted by the present invention to achieve the desired object, the specific embodiments of the present invention will be described in detail below with reference to the drawings and suitable examples. do.

Example 1
Referring to FIGS. 1, 9 and 10, the present embodiment provides a double-on-key switch, which comprises a base 1, a cover 2 provided above the base 1, and a guide core 3. The cover 2 is overlaid on the base 1 to form a containment chamber, the guide core 3 is provided in the containment chamber, and the cover 2 is provided with an opening 21 through which the upper end of the guide core 3 passes. Presses the guide core 3 downward to trigger the key switch to turn on.

The key switch of this embodiment further includes a first conduction unit 4 and a second conduction unit 5 that are triggered by the guide core 3 and conduct back and forth, and when the guide core 3 is pressed downward, the first continuity unit 4 is further included. The conduction unit 4 and the second conduction unit 5 are conductive in the front-rear direction, that is, the on-strokes in which the first conduction unit 4 and the second conduction unit 5 are conductive in the front-rear direction are different, and the double-on function of the key switch is realized. Will be done.

Specifically, as shown in FIG. 2, in the present embodiment, the guide core 3 includes at least one first conduction trigger member 31 corresponding to the first conduction unit 4 and a second conduction unit. At least one second conduction trigger member 32 corresponding to 5 is provided, and the on-stroke in which the first conduction trigger member 31 triggers the continuity of the first conduction unit 31 is the second conduction trigger member. 32 is different from the on-stroke that triggers the conduction of the second conduction unit 5. Therefore, when the guide core 3 is pressed downward, the first conduction trigger member 31 first triggers the first conduction unit 4 to conduct the conduction, and when the guide core 3 continues to be pressed, the second conduction trigger member 31 first triggers the conduction. The member 32 later triggers the second conduction unit 5 to conduct.

Further, a first inclined surface 311 is formed on the side side of the first conduction trigger member 31, a second inclined surface 321 is formed on the side side of the second conduction trigger member 32, and the first inclined surface is formed. Since the inclination of the inclined surface 311 is larger than the inclination of the second inclined surface 321 and 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 are conducted. When the trigger member 32 moves downward along with the guide core 3, the first conduction unit 4 and the second conduction unit 5 conduct back and forth.

In this embodiment, the first conduction unit 4 and the second conduction unit 5 both have a conduction structure consisting of a movable piece and a fixed piece, and the specific structure is as follows.

As shown in FIG. 3, the first conduction unit 4 includes a first fixed piece 41 and a first movable piece 42, and the first fixed piece 41 is provided with a first fixed contact 411. The first movable piece 42 is provided with the first movable contact 421 corresponding to the first fixed contact 411, and the first movable piece 42 is provided with at least one corresponding to the first conduction trigger member 31. The first contact projection 422 is formed. Specifically, the first contact projection 422 and the first conduction trigger member 31 may be provided so that the numbers thereof are two and the number of the first contact protrusions 422 and the first conduction trigger member 31 correspond to each other on a one-to-one basis. Regarding the mounting of the first fixed piece 41 and the first movable piece 42, the first fixed piece 41 and the first movable piece 42 are located outside the first conduction trigger member 31 of the guide core 3 in the base 1. It may be mounted, specifically, as shown in FIG. 8, the first fixed piece 41 is located inside and the first movable piece 42 is located outside. Further, the lower ends of the first fixed piece 41 and the first movable piece 42 pass through the lower end surface of the base 1 and are electrically connected to the PCB substrate. In the process of moving the guide core 3 up and down, the first conduction unit 4 is not displaced in the vertical direction.

As shown in FIG. 4, the second conduction unit 5 includes a second fixed piece 51 and a second movable piece 52, and the second fixed piece 51 is provided with a second fixed contact 511. The second movable piece 52 is provided with a second movable contact 521 corresponding to the second fixed contact 511, and the second movable piece 52 is provided with at least one corresponding to the second conduction trigger member 32. A second contact projection 522 is formed. Specifically, the second contact projection 522 and the second conduction trigger member 32 may be provided so that the number of the second contact projection 522 and the second conduction trigger member 32 are two each and have a one-to-one correspondence. Regarding the mounting of the second fixed piece 51 and the second movable piece 52, the second fixed piece 51 and the second movable piece 52 are located outside the second conduction trigger member 32 of the guide core 3 in the base 1. It may be mounted, specifically, as shown in FIGS. 8 and 9, the second fixed piece 51 is located inside and the second movable piece 52 is located outside. Further, the lower ends of the second fixed piece 51 and the second movable piece 52 pass through the lower end surface of the base 1 and are electrically connected to the PCB substrate. In the process of moving the guide core 3 up and down, the second conduction unit 5 is not displaced in the vertical direction.

In this embodiment, both the first movable piece 42 and the second movable piece 52 are made of a material having a certain elasticity, for example, stainless steel.

In the initial non-pressed state, as shown in FIG. 5, when the first conduction trigger member 31 abuts outwardly on the first contact projection 422 of the first movable piece 42, the first movable piece 42 When the upper portion is bent outward and deformed, the first movable contact 421 and the first fixed contact 411 are separated, that is, the first conduction unit 4 is in a non-conducting state. Further, when the second conduction trigger member 32 abuts outward on the second contact projection 522 of the second movable piece 52, the upper portion of the second movable piece 52 bends outward and is deformed, so that the second movable piece 52 is second. The movable contact 521 of the second and the second fixed contact 511 are separated, that is, the second conducting unit 5 is in a non-conducting state.

When the guide core 3 is pressed downward, as shown in FIG. 6, the guide core 3 continuously moves downward, and the first inclined surface of the first contact projection 422 and the first conduction trigger member 31 When the 311 moves until it comes into contact, the guidance action of the first inclined surface 311 causes the upper part of the first movable piece 42 to elastically return to the inside until the first movable contact 421 comes into contact with the first fixed contact 411. Then, the first conduction unit 4 conducts. In such a process, the second contact projection 522 comes into contact with the second inclined surface 321 of the second conduction trigger member 32, and the upper part of the second movable piece 52 is guided by the guiding action of the second inclined surface 321. Is elastically restored to the inside, and the inclination of the first inclined surface 311 is larger than that of the second inclined surface 321. When the conduction unit 4 of 1 has just conducted, the second movable contact 521 is not in contact with the second fixed contact 511. That is, in the first stroke in which the guide core 3 moves downward, the first conduction unit 4 is conducting, and the second conduction unit 5 is not conducting.

When the guide core 3 continues to be pressed downward, as shown in FIG. 7, the guide core 3 moves further downward, and the upper part of the first movable piece 42 is further inside by the guiding action of the first inclined surface 311. The first movable contact 421 and the first fixed contact 411 are always in contact with each other, and the first conduction unit 4 is always conducting. In such a process, due to the guiding action of the second inclined surface 321, the upper part of the second movable piece 52 is further elastically restored to the inside until the second movable contact 521 comes into contact with the second fixed contact 511. , The second conduction unit 5 conducts. That is, in the second stroke in which the guide core 3 moves downward, the first conduction unit 4 always remains conductive, and the second conduction unit 5 begins to conduct. As a result, the first conduction unit 4 and the second conduction unit 5 conduct in the front-rear direction.

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

When the pressure on the guide core 3 is released, the guide core 3 moves upward and is reset by the action of the elastic recovery force of the spring 6, and the inclination of the first inclined surface 311 becomes the inclination of the second inclined surface 321. Since it is larger than the inclination, the second conduction unit 5 is cut first, the first conduction unit 4 is cut later, and the initial unpressed state is restored.

Example 2
In this embodiment, as a main difference from the first embodiment, referring to FIGS. 11 to 14, the first conduction unit 4 is an optical conduction unit A 43 electrically connected to the PCB substrate 7. The second conduction unit 5 is an optical conduction unit B 53 electrically connected to the PCB substrate 7, the first conduction trigger member 31 is a light-shielding projection A 312, and the second conduction trigger member 31 is a light-shielding projection A 312. Reference numeral 32 denotes a light-shielding protrusion B 322, and the distance between the light-shielding protrusion A 312 and the light conduction unit A 43 is smaller than the distance between the light-shielding protrusion B 322 and the light conduction unit B 53. When the guide core 3 is pressed and moves downward, the light-shielding protrusion A 312 and the light-shielding protrusion B 322 move downward along with the guide core 3, and the distance between the light-shielding protrusion A 312 and the optical conduction unit A 43 increases. Since it is smaller than the distance between B 322 and the light conduction unit B 53, the light-shielding projection A 312 reaches the light conduction unit A 43 first, blocks the optical path of the light conduction unit A 43, and the light-shielding projection B 322 later reaches the light conduction unit A 43. It reaches B53 and shields the optical path of the optical conduction unit B53. Therefore, the optical conduction unit A 43 generates a signal in which the optical path is cut off before the optical conduction unit B53, that is, the optical conduction unit A 43 conducts first, and the optical conduction unit B53 conducts later. Therefore, the purpose of front-rear conduction is achieved. In this embodiment, the double-on function of the key switch is realized by different on-strokes that are conducted in the front-rear direction.

The distance between the light-shielding protrusion A 312 and the light conduction unit A 43 can be made smaller than the distance between the light-shielding protrusion B 322 and the light conduction unit B 53 by adopting the following two methods.

(1) As shown in FIGS. 13 to 16, the height of the light-shielding protrusion A 312 is the same as the height of the light-shielding protrusion B 322, and the height of the light conduction unit A 43 is higher than the height of the light conduction unit B 53. Is also expensive. When the guide core 3 is pressed and moves downward, the light-shielding protrusion A 312 and the light-shielding protrusion B 322 move downward along with the guide core 3, and in the process of moving downward, the light-shielding protrusion A 312 and the light-shielding protrusion B 322 The height is the same. Since the height of the light conduction unit A 43 is higher than the height of the light conduction unit B 53, the light conduction protrusion A 312 first reaches the light conduction unit A 43, blocks the optical path of the light conduction unit A 43, and blocks the light path of the light conduction unit A 43. Later reaches the optical conduction unit B53 and blocks the optical path of the optical conduction unit B53. Therefore, the optical conduction unit A 43 generates a signal in which the optical path is blocked before the optical conduction unit B 53, that is, the optical conduction unit A 43 conducts first and the optical conduction unit B 53 conducts later, thereby. , The purpose of front-rear conduction is achieved.

(2) The height of the light-shielding protrusion A 312 is lower than the height of the light-shielding protrusion B 322, and the height of the light conduction unit A 43 is the same as the height of the light conduction unit B 53. When designing a specific structure, the height of the light-shielding projection A 312 on the guide core 3 may be designed to be lower than the height of the light-shielding projection B 322 on the guide core 3. When the guide core 3 is pressed and moves downward, the light-shielding protrusion A 312 and the light-shielding protrusion B 322 move downward in synchronization with the guide core 3, and in the process of moving downward, the height of the position of the light-shielding protrusion A 312. Is always lower than the height of the position of the light-shielding protrusion B 322. Since the height of the light conduction unit A 43 is equal to the height of the light conduction unit B 53, the light conduction protrusion A 312 first reaches the light conduction unit A 43, blocks the optical path of the light conduction unit A 43, and blocks the light path of the light conduction unit A 43. The 322 later reaches the optical conduction unit B 53 and blocks the optical path of the optical conduction unit B 53. Therefore, the optical conduction unit A 43 generates a signal in which the optical path is cut off before the optical conduction unit B 53, that is, the optical conduction unit A 43 conducts first, and the optical conduction unit B 53 conducts later. Thereby, the purpose of front-rear conduction is achieved.

In this embodiment, as shown in FIGS. 15 and 16, the base 1 has the light-shielding protrusion A 312 and the light-shielding protrusion B 322, respectively, so that the light-shielding protrusion A 312 and the light-shielding protrusion B 322 can be easily moved up and down. A first evacuation port 11 for moving up and down is formed.

In this embodiment, the optical conduction unit A 43 and the optical conduction unit B 53 have the same structure, and include a light emitting element (431, 531) and a light receiving element (432, 532), respectively. When there is no blocking structure between the light emitting element (431, 531) and the light receiving element (432, 532), the light emitting element (431, 531) transmits an optical signal, and the light receiving element (432, 532) transmits an optical signal. When receiving and a blocking structure exists between the two, the light receiving element (432,532) cannot receive the optical signal transmitted from the light emitting element (431,531), that is, a signal in which the optical path is blocked is generated. ..

The key switch using the optical conduction unit is an optical axis key switch. The operating principle is as follows.

In the natural state, the light-shielding protrusion of the guide core 3 does not reach the optical conduction unit, and the light-receiving element of the optical conduction unit can normally receive the optical signal transmitted from the light-emitting element, and is preset through the circuit of the PCB substrate 7. In such a case, the key switch is in the off state.

When the guide core 3 is pressed downward, the guide core 3 drives the light-shielding protrusion to move downward in synchronization, and the light-shielding protrusion extends between the light-emitting element and the light-receiving element, and the light-emitting element and the light-receiving element It is assumed that the key switch is turned on when the optical path between the light paths is blocked and the light receiving element cannot receive the optical signal transmitted from the light emitting element, that is, when a signal in which the optical path is blocked is generated.

When the pressure on the guide core 3 is released, the elastic recovery force of the spring 6 causes the guide core 3 to move upward and reset, drive the light-shielding protrusion to move upward, and the light-shielding protrusion emits light. When separated from the element and the light receiving element, the light receiving element receives the optical signal from the light emitting element again, and the key switch returns to the off state.

In this embodiment, the distance between the light-shielding protrusion A 312 and the light conduction unit A 43 is smaller than the distance between the light-shielding protrusion B 322 and the light conduction unit B 53. Therefore, when the guide core 3 is pressed downward, light is blocked. The protrusion A 312 first extends between the light emitting element 431 and the light receiving element 432, blocking the optical signal transmitted by the light emitting element 431 to the light receiving element 432, and the light emitting protrusion B 322 later causes the light emitting element 531 to the light receiving element 532. The transmitted optical signal is blocked, that is, the optical conduction unit A 43 generates a signal in which the optical path is blocked before the optical conduction unit B 53, that is, the optical conduction unit A 43 conducts first and the optical conduction unit A 43 conducts light conduction. Unit B 53 later conducts, thereby achieving the purpose of front-to-back conduction.

When the pressure on the guide core 3 is released and the guide core 3 moves upward and resets, the light-shielding projection B 322 first separates from the optical conduction unit B53, and the signal generated by the optical conduction unit B 53 that blocks the optical path. Disappears first, and the signal from which the optical path is blocked, which is generated by the optical conduction unit A 43, disappears later, that is, the optical conduction unit B 53 is disconnected before the optical conduction unit A 43.

Example 3
In this embodiment, as a main difference from the first embodiment, referring to FIGS. 17 to 20, the first conduction unit 4 is an induction switch A 45 electrically connected to the PCB substrate 7. The second conduction unit 5 is an induction switch B 55 electrically connected to the PCB substrate 7, the first conduction trigger member 31 is a magnet A313, and the second conduction trigger member 32 is a magnet B. It is 323, and 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 and moves downward, the magnet A 313 and the magnet B 323 move downward along with the guide core 3, and the distance between the magnet A 313 and the induction switch A45 is reduced between the magnet B 323 and the induction switch B. Since it is smaller than the distance to 55, the induction switch A45 first detects the magnetism of the magnet A 313, and the induction switch B 55 later detects the magnetism of the magnet B 323, that is, the first conduction unit 4 first detects the magnetism. It conducts, and the second conducting unit 5 conducts later, thus achieving the object that the first conducting unit 4 and the second conducting unit 5 conduct back and forth. As a result, in this embodiment, the on-strokes in which the first conduction unit 4 and the second conduction unit 5 conduct in the front-rear direction are different, and the double-on function of the key switch is realized.

The distance between the magnet A 313 and the induction switch A 45 can be made smaller than the distance between the magnet B 323 and the induction switch B 55 by adopting the following two methods.

(1) As shown in FIGS. 18 to 21, 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 the height of the induction switch B 55. When the guide core 3 is pressed and moves downward, the magnet A 313 and the magnet B 323 move downward in synchronization with the guide core 3, and in the process of moving downward, the heights of the magnet A 313 and the magnet B 323 are high. Is the same. Since the height of the induction switch A45 is higher than the height of the induction switch B 55, the magnet A 313 approaches the induction switch A45 before the magnet B 323, and thus the induction switch A45 has the magnetism of the magnet A 313 first. The induction switch B 55 later detects the magnetism of the magnet B323, whereby the object that the first conduction unit 4 conducts first and the second conduction unit 5 conducts later is achieved.

(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. When specifically designing the structure, the height of the position of the magnet A 313 on the guide core 3 may be designed 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 and moves downward, the magnet A 313 and the magnet B 323 move downward in synchronization with the guide core 3, and in the process of moving downward, the height of the position of the magnet A 313 increases. It is lower than the height of the position of magnet B 323. Since the height of the induction switch A45 is equal to the height of the induction switch B 55, the magnet A 313 approaches the induction switch A45 before the magnet B323, and thus the induction switch A45 detects the magnetism of the magnet A313 first. Then, the induction switch B 55 later detects the magnetism of the magnet B 323, thereby achieving the object that the first conduction unit 4 conducts first and the second conduction unit 5 conducts later.

Regarding the mounting method of the magnet A 313 and the magnet B 323 to the guide core 3, as shown in FIGS. 19 and 20, in the present embodiment, the magnet A 313 is mounted on the side side of the guide core 3 in a protruding manner. A portion A 33 and a protruding mounting portion B 34 into which the magnet B 323 is fitted are projected outward. When the protruding mounting portion A 33 and the protruding mounting portion B 34 move up and down as a whole along with the guide core 3, the magnet A 313 and the magnet B 323 also move up and down in synchronization, thereby achieving the purpose of front-rear double-on. NS.

In this embodiment, as shown in FIG. 21, the protruding mounting portion A33 is mounted on the base 1 so that the protruding mounting portion A33 easily drives the magnet A 313 and the protruding mounting portion B 34 drives the magnet B 323 to move up and down. A second evacuation port 12 is formed in which the portion A 33 and the projecting mounting portion B 34 move up and down, respectively, and the induction switch A 45 and the induction switch B 55 are provided on the outer side of the second evacuation port 12. 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 induction switch A45 on the side side of the second evacuation port 12 detects the magnetism of the magnet A 313. Then, the induction switch B 55 detects the magnetism of the magnet B 323, thereby achieving the purpose of front-rear double-on.

In this embodiment, the induction switch A45 is one of a magnetic sensor and a Hall element, and when the induction switch A45 is a magnetic sensor, the magnet A 313 and the induction switch A45 are combined to form a magnetic induction switch. When the induction switch A45 is a Hall element, the magnet A 313 and the induction switch A 45 are combined to form a Hall induction switch. Similarly, the induction switch B 55 is one of a magnetic sensor and a 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 induction switch B 55 is a Hall element, the magnet B 323 and the induction switch B 55 are combined to form a Hall induction switch.

Specifically, the operating principle of the magnetic induction switch is as follows.

In the natural state, if the distance between the magnet of the guide core 3 and the magnetic sensor of the PCB substrate 7 is sufficiently large, the magnetic sensor of the PCB substrate 7 cannot detect the magnetism of the magnet of the guide core 3, and the circuit is turned off, that is, , The key switch is turned off.

When the guide core 3 is pressed downward, the guide core 3 drives the magnet to move downward, the guide core 3 is pressed downward to a predetermined stroke, and the distance between the magnet and the magnetic sensor of the PCB substrate 7 is reduced. When it becomes constant, the magnetic sensor detects magnetism and the circuit is turned on, that is, the key switch is turned on.

When the pressure on the guide core 3 is released, the force of the elastic recovery force of the spring 6 causes the guide core 3 to move upward and reset, drive the magnet to move upward, and the magnet and the magnetic sensor. When the distance is large enough that the magnetic sensor of the PCB substrate 7 cannot detect the magnetism of the magnet, the circuit is turned off and the key switch is returned to the off state.

In this embodiment, 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. Therefore, when the guide core 3 is pressed downward, the magnet A 313 first. As it approaches the induction switch A45, the first conduction unit 4 conducts first, the second conduction unit 5 conducts later, and thus the object of front-rear conduction is achieved. When the pressure on the guide core 3 is released and the guide core 3 moves upward and resets, the magnet B 323 first separates from the induction switch B 55, the second conduction unit 5 is cut first, and the first The conduction unit 4 is later disconnected.

Specifically, the operating principle of the hall induction switch is as follows.

In the natural state, when the distance between the magnet of the guide core 3 and the Hall element of the PCB substrate 7 is sufficiently large, the Hall element of the PCB substrate 7 cannot detect the magnetism of the magnet of the guide core 3, that is, the Hall element No signal is generated and the circuit is turned off, i.e. the key switch is turned off.

When the guide core 3 is pressed downward, the guide core 3 drives the magnet to move downward, and the guide core 3 is pressed downward to a predetermined stroke, and the distance between the magnet and the Hall element of the PCB substrate 7 is reached. When is constant, the Hall element detects magnetism, that is, a signal is generated in the Hall element (for example, a signal with a changed resistance value, a signal with a changed voltage value, etc.), and as the magnetic force increases, the signal of the signal The numerical value increases linearly, the electrical characteristics are output, the circuit is turned on, that is, the key switch is turned on.

When the pressure on the guide core 3 is released, the force of the elastic recovery force of the spring 6 causes the guide core 3 to move upward and reset, drive the magnet to move upward, and cause the magnet and the Hall element to move upward. The distance is large enough so that the Hall element of the PCB substrate 7 can detect the magnetism of the magnet, that is, if no signal is generated in the Hall element, the circuit is turned off and the key switch is returned to the off state.

In this embodiment, 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. Therefore, when the guide core 3 is pressed downward, the magnet A 313 first. As it approaches the induction switch A45, the first conduction unit 4 conducts first and the second conduction unit 5 conducts later, thereby achieving the purpose of front-rear conduction. When the pressure on the guide core 3 is released and the guide core 3 moves upward and resets, the magnet B 323 first separates from the induction switch B 55, the second conduction unit 5 is cut first, and the first The conduction unit 4 is later disconnected.

Example 4
In this embodiment, as the main difference from any of the first to third embodiments, as shown in FIGS. 22 and 23, the cover 2 is covered with the base 1 and the accommodation chamber 13 is provided. A sounding elastic member 8 is provided in the accommodation chamber 13, a pressing protrusion 35 toward the sounding elastic member 8 is projected on the side side of the guide core 3, and a guide lamp 14 is provided on the base 1. Is provided, and in the natural state, one end 81 of the sounding elastic member 8 extends below the pressing protrusion 35 and is located above the guide lamp 14. Specifically, the sounding elastic member 8 is a torsion spring, and specifically, the torsion spring is manufactured of a stainless steel material, that is, a stainless steel torsion spring.

Regarding the specific mounting of the sounding elastic member 8, the sounding elastic member 8 of this embodiment is provided on the base 1 or the cover 2. Specifically, as shown in FIG. 23, the main body portion of the torsion spring is not limited to the cover 2, and of course, the main body portion of the torsion spring may be limited to the base 1.

When the guide core 3 is pressed downward, the pressing protrusion 35 is driven and moves downward, and the pressing protrusion 35 pushes one end 81 of the sounding elastic member 8 (torsion spring) downward and pushes it to a predetermined position. The guide lamp 14 of the base 1 guides one end 81 of the sounding elastic member 8 and separates it from the pressing protrusion 35, and the one end 81 of the sounding elastic member 8 is flipped by the release of position energy to hit the base 1, and the cover 2 and / or The pressing protrusion 35 makes a sound, and thus the pressing sounding function is realized, the sound is loud, and the effect is good.

Further, in order to further improve the actual feeling at the time of pressing, in the present embodiment, the elastic movable piece 9 is provided on the base 1, and the elastic portion 91 of the elastic movable piece 9 extends below the sounding elastic member 8. ing. When the guide core 3 is pressed downward and the pressing protrusion 35 is driven to move downward, the pressing protrusion 35 pushes one end 81 of the sounding elastic member 8 downward, and one end 81 of the sounding elastic member 8 moves downward. When pressed, it acts on the elastic movable piece 9, and the elastic movable piece 9 is deformed. In this way, the actual feeling at the time of pressing is improved.

The above is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, it can be obtained by using the same or similar technical features as the above-mentioned embodiment of the present invention. All other structures are within the scope of the invention.

Claims (19)

A double-on-key switch that includes a base, a cover provided above the base, and a guide core.
A double-on-key switch characterized by further including a first conduction unit and a second conduction unit that are triggered by a guide core and conduct back and forth. The guide core is provided with at least one first conduction trigger member corresponding to the first conduction unit and at least one second conduction trigger member corresponding to the second conduction unit, and the first The on-stroke in which the continuity trigger member of the above triggers the continuity of the first continuity unit is different from the on-stroke in which the second continuity trigger member triggers the continuity of the second continuity unit, according to claim 1. The double-on-key switch described. A first inclined surface is formed on the side side of the first conduction trigger member, a second inclined surface is formed on the side side of the second conduction trigger member, and the inclination of the first inclined surface is The double-on-key switch according to claim 2, wherein the inclination is larger than the inclination of the second inclined surface. The first conduction unit includes a first fixed piece and a first movable piece, the first fixed piece is provided with a first fixed contact, and the first movable piece is first fixed. A first movable contact corresponding to the contact is provided, and at least one first contact projection corresponding to the first conduction trigger member is formed on the first movable piece, and the second conduction unit is the first. A second movable contact including a second fixed piece and a second movable piece, the second fixed piece being provided with a second fixed contact, and the second movable piece being provided with a second movable contact corresponding to the second fixed contact. The double-on-key switch according to claim 2 or 3, wherein at least one second contact protrusion corresponding to the second conduction trigger member is formed on the second movable piece. .. The first conduction unit is a light conduction unit A that is electrically connected to the PCB substrate, and the second conduction unit is a light conduction unit B that is electrically connected to the PCB substrate. The conduction trigger member is a light-shielding protrusion A, the second conduction trigger member is a light-shielding protrusion B, and the distance between the light-shielding protrusion A and the light conduction unit A is greater than the distance between the light-shielding protrusion B and the light conduction unit B. The double-on-key switch according to claim 2, wherein the size is also small. The double-on-key according to claim 5, wherein the height of the light-shielding protrusion A is the same as the height of the light-shielding protrusion B, and the height of the light conduction unit A is higher than the height of the light conduction unit B. switch. The double-on-key according to claim 5, wherein the height of the light-shielding protrusion A is lower than the height of the light-shielding protrusion B, and the height of the light conduction unit A is the same as the height of the light conduction unit B. switch. The double-on-key switch according to claim 5, wherein a first evacuation port for moving the light-shielding protrusion A and the light-shielding protrusion B up and down is formed on the base, respectively. The double-on-key switch according to claim 5, wherein the light conduction unit A and the light conduction unit B have the same structure and include a light emitting element and a light receiving element, respectively. The first conduction unit is an induction switch A electrically connected to the PCB board, the second conduction unit is an induction switch B electrically connected to the PCB board, and the first conduction trigger. The member is a magnet A, the second conduction trigger member 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. The double-on-key switch according to claim 2. The double-on-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-on-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 tenth aspect of the present invention, wherein the protruding mounting portion A into which the magnet A is fitted and the protruding mounting portion B into which the magnet B is fitted are respectively projected outward on the side sides of the guide core. Double on key switch. A second evacuation port for the projecting mounting portion A and the projecting mounting portion B to move up and down is formed on the base, respectively, and the induction switch A and the induction switch B are provided on the outer side of the second evacuation port. The double-on-key switch according to claim 13, characterized in that. The double-on-key switch according to claim 10, wherein the induction switch A is one of a magnetic sensor and a Hall element, and the induction switch B is one of a magnetic sensor and a Hall element. .. The cover is covered with a base to form a storage chamber, a sounding elastic member is provided in the storage chamber, and a pressing protrusion toward the sounding elastic member is projected on the side side of the guide core, and the base is provided with a pressing protrusion. The double-on-key according to claim 1, wherein a guide lamp is provided, and in a natural state, one end of the sounding elastic member extends below the pressing protrusion and is located above the guide lamp. switch. The double-on-key switch according to claim 16, wherein the sounding elastic member is a torsion spring. The double-on-key switch according to claim 16, wherein the sounding elastic member is provided on a base or a cover. The double-on-key switch according to claim 16, wherein an elastic movable piece is provided on the base, and the elastic portion of the elastic movable piece extends below the sounding elastic member.

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