CN207993740U - A kind of magnetic key switch - Google Patents

Abstract

The utility model discloses a kind of magnetic key switchs, including a pedestal and the lid being set to above pedestal, the lid is combined to form an accommodating cavity with pedestal, it is provided with one in the accommodating cavity and leads core, this, which is led, is provided with an elastic component between core and pedestal, further include being set to the magnet assembly for leading core lower end.Magnetic key switch provided by the utility model, in a manner of a kind of novel conducting structure, realize conducting and the break function of key switch, it uses for a long time, still action is accurate, and induction is sensitive, and service life is long, it ensure that its stability in use and usage safety performance, and there is good feel and sounding effect.

Description

A kind of magnetic key switch

Technical field

The utility model is related to a kind of key switch more particularly to a kind of magnetic key switchs.

Background technology

In general, the conducting principle of key switch is the conducting and disconnection moved up and down come triggering and conducting component by leading core, To realize conducting and the break function of key switch.And feed-through assembly is usually made of stationary plate with movable plate, by leading core triggering The movable contact of movable plate is in contact with the stationary contact of stationary plate and realizes conducting and break function with detaching.

After key switch is used for a long time, the movable contact of movable plate is frequently contacted and is detached, the time with the stationary contact of stationary plate One long afterwards, and surface is also easy to produce abrasion, and service life is short, influences the stability in use and usage safety performance of key switch, even Lead to not realize conducting and break function.

Utility model content

Against the above deficiency, the purpose of this utility model is to provide a kind of magnetic key switchs, are led with a kind of novel Logical frame mode realizes conducting and the break function of key switch, uses for a long time, still action is accurate, and induction is sensitive, uses Long lifespan ensure that its stability in use and usage safety performance, and have good feel and sounding effect.

Used technical solution is the utility model in order to achieve the above objectives：

A kind of magnetic key switch, including a pedestal and the lid that is set to above pedestal, the lid are mutually tied with pedestal It closes and forms an accommodating cavity, being provided with one in the accommodating cavity leads core, this, which is led, is provided with an elastic component, feature between core and pedestal It is, further includes being set to the magnet assembly for leading core lower end.

As a further improvement of the utility model, the magnet assembly include be set to the sleeve for leading core lower end and The magnet being set in casing, wherein be recessed with an annular slot in the casing periphery.

As a further improvement of the utility model, it is described lead core lower end upwardly offer an embedded groove, it is embedding at this Enter it is downwardly convex at groove center position be equipped with a positioning inserting column, be vertically provided in the embedded groove positioned at positioning inserting column periphery one Fixing body, at least convex closure being inwardly convexly equipped on the fixing body inner wall in the annular slot for being arranged in casing；Described sleeve pipe It is sheathed on positioning inserting column lower end periphery, the magnet is made to be located at positioning inserting column lower end.

The fixing body is the round set for being located on positioning inserting column periphery as a further improvement of the utility model, Cylinder, or it is located on two half circular sleeves of positioning inserting column periphery and corresponding setting.

A guide post is equipped with the pedestal upper surface is upward convex as a further improvement of the utility model, is led at this It is recessed with one be inserted into together with fixing body for positioning inserting column downwards to column upper end and is oriented to jack；The elastic component is spring, In the upper end insertion embedded groove of the spring, lower end is sheathed on positioning inserting column, fixing body and guide post periphery.

One first card slot is provided on the pedestal as a further improvement of the utility model, in first card slot It is inside inserted with a shrapnel, there is a springing part on the one side for leading core in the shrapnel；It is arranged in core a side in described lead There is a briquetting corresponding with the springing part of shrapnel.

One second card slot is provided on the pedestal as a further improvement of the utility model, in second card slot Inside it is provided with a torsional spring；In the springing block led and be provided on another side of core for springing torsional spring.

The pedestal lower end is provided with several positioning columns and several grabs as a further improvement of the utility model, Several card rail plates buckled into pedestal are extended downward in the lid side.

It is longitudinal that one is respectively arranged on two opposite madial walls of the pedestal as a further improvement of the utility model, Card slot, in the longitudinal strip for leading and being respectively arranged with sliding in two opposite outer side edges of core and being arranged in longitudinal card slot.

The lid is perspex lid as a further improvement of the utility model, and the pedestal is transparent base.

The beneficial effects of the utility model are：

(1) include that the magnet assembly of casing and magnet is used as the feed-through assembly of key switch by adding, in conjunction on pcb board IC chip, you can realize conducting and the break function of key switch, action is accurate, and induction is sensitive, and structural stability is high, During moving up and down, because magnet assembly is not in contact collision with other structures, it is used for a long time without abrasion, service life It is long, it ensure that its stability in use and usage safety performance；

(2) by adding shrapnel and torsional spring, the pressing vocal function of key switch can be not only realized, and with good Press feel；When adding at least one of both shrapnel and torsional spring, it can be achieved that it is noiseless have feel, it is sound have two kinds of feel by Press effect.

Above-mentioned is the general introduction of utility model technical solution, below in conjunction with attached drawing and specific implementation mode, to the utility model It is described further.

Description of the drawings

Fig. 1 is the explosive view of the utility model；

Fig. 2 is the external structure schematic diagram of the utility model in the raw；

Fig. 3 is the sectional view of the utility model in the raw；

Fig. 4 is another sectional view of the utility model in the raw；

Fig. 5 is the structural schematic diagram that the utility model leads core lower part；

Fig. 6 is another structural schematic diagram that the utility model leads core lower part；

Fig. 7 is the structural schematic diagram of the utility model pedestal；

Fig. 8 is the utility model pedestal with the structural schematic diagram led core and be combined；

Fig. 9 is the external structure schematic diagram that the utility model is in pressing state；

Figure 10 is the sectional view that the utility model is in pressing state.

Specific implementation mode

Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose is taken, below in conjunction with Specific embodiment of the present utility model is described in detail in attached drawing and preferred embodiment.

Fig. 1 to Fig. 8, a kind of magnetic key switch of the utility model embodiment offer, including a pedestal 1 are be provided and set It is placed in a lid 2 of 1 top of pedestal, which is combined to form an accommodating cavity with pedestal 1, and one is provided in the accommodating cavity Core 3 is led, as shown in fig. 7, be respectively arranged with a longitudinal card slot 16 on two opposite madial walls of the pedestal 1, to lead core 3 opposite at this Two outer side edges on be respectively arranged with sliding is arranged in longitudinal card slot 16 one longitudinal strip 35, enable to lead core 3 along longitudinal direction The longitudinal vertical and straight movement of card slot 16, not will produce inclination, improves the action accuracy for leading core 3；It is offered on the lid 2 for leading core The opening 21 that 3 upper ends are pierced by, this, which is led, is provided with an elastic component 4 between core 3 and pedestal 1, in the present embodiment, the elastic component 4 For spring 4', for providing elastic restoring force for the process of pressing up and down of leading core 3.

The present embodiment magnetic key switch further includes being set to the magnet assembly 5 for leading 3 lower end of core.Specifically, such as Fig. 1 institutes Showing, the magnet assembly 5 includes the magnet 52 for being set to the sleeve 51 for leading 3 lower end of core and being set in casing 51, In, it is recessed with an annular slot 511 in 51 periphery of casing, magnet assembly 5 is whole to be moved up and down together with leading core 3.

As shown in Figures 4 to 6, it is described lead 3 lower end of core upwardly offer an embedded groove 31, at 31 center of embedded groove It is downwardly convex at position to be equipped with a positioning inserting column 32, the peace positioned at 32 periphery of positioning inserting column is vertically provided in the embedded groove 31 Fill body 33, at least convex closure being inwardly convexly equipped on 33 inner wall of fixing body in the annular slot 511 for being arranged in casing 51 331；Described sleeve pipe 51 is sheathed on 32 lower end of positioning inserting column periphery, and the magnet 52 is made to be located at 32 lower end of positioning inserting column.

In the present embodiment, the fixing body 33 is to be located on a circular sleeve of 32 periphery of positioning inserting column, or be located on Two half circular sleeves of 32 periphery of inserting column and corresponding setting are positioned, as shown in figs. 5 and 6.

As shown in Fig. 3, Fig. 4 and Fig. 7, a guide post 11 is equipped with 1 upper surface of the pedestal is upward convex, in the guide post 11 Upper end is recessed with downwards is oriented to jack 111 for positioning inserting column 32 and fixing body 33 is inserted into together one；The spring 4''s is upper In end insertion embedded groove 31, lower end is sheathed on positioning inserting column 32, fixing body 33 and 11 periphery of guide post.

As shown in Figures 2 to 4,1 lower end of the pedestal is provided with several positioning columns 14 and several grabs 15, in the lid Sub 2 sides extend downward with several card rail plates 22 buckled into pedestal 1.It is mounted as a whole on pcb board by key switch When, it is installed on what key switch integrally consolidated on pcb board by positioning column 14 and grab 15, makes product structure stability higher, Performance is more stable when use.

In the present embodiment, the lid 2 is perspex lid, and the pedestal 1 is transparent base.Pedestal 1 and lid 2 are adopted It is made of transparent material, keeps product translucency more preferable, meanwhile, using perspex lid as lid 2, each conductive component can obtain To preferably insulating.

What the present embodiment used leads 3 structure of core, and cross surrounding fences up completely, keeps key switch dust tightness more preferable.

Key switch provided in this embodiment is installed on the pcb board with IC chip when in use.Specific works Principle is：

As shown in Figures 2 to 4, in its natural state, it leads the magnet 52 on core 3 and the IC chip distance on pcb board is enough When remote, less than the magnetism for the magnet 52 led in core 3, circuit disconnection, i.e. key switch are in be disconnected the IC chip induction on pcb board State；

As shown in Figures 9 and 10, when leading core 3 and pressing down on, core 3 is led with 52 downward actuation of moving magnet, it is downward when leading core 3 When being pressed into certain stroke, when magnet 52 being made to reach certain distance with the IC chip on pcb board, IC chip senses magnetism, electricity Road is connected, i.e., key switch is in the conduction state.

The key switching structure of above-mentioned offer is a kind of structure of noiseless no feel, and good in order to make key switch have Feel, the present embodiment is further improved the structure of key switch, includes specifically following two structures.

One of which is：It is provided with one first card slot 12 on the pedestal 1, a bullet is inserted in first card slot 12 Piece 6 has a springing part 61 in the shrapnel 6 on the one side for leading core 3；Meanwhile it being provided in 3 a side of core in described lead A briquetting 34 corresponding with the springing part 61 of shrapnel 6.Lead core 3 be pressed move up and down during, lead on 3 side of core Briquetting 34 act on the springing part 61 of shrapnel 6, and due to the elastic acting force of the springing part of shrapnel 6 61, pressing is made to generate Good feel.

Another kind is：It is provided with one second card slot 13 on the pedestal 1, a torsional spring is provided in second card slot 13 7；In the springing block 36 led and be provided on 3 another side of core for springing torsional spring 7.It is moved up and down leading core 3 and being pressed During, it leads the springing block on 3 side of core and acts on torsional spring 7, and since torsional spring 7 has good elastic property, make pressing Produce good feel, simultaneously, 7 springing of torsional spring is beaten pedestal 1 or lid 2 and is made a sound, realize pressing it is sound and There is feel function.

Certainly, when adding above-mentioned shrapnel 6 with torsional spring 7 simultaneously in key switch, the pressing of key switch can be not only realized Vocal function, and it presses feel and is remarkably reinforced.

In the present embodiment, the problem of pedestal 1 divides for many types of cavity configuration, respectively independent, each part can separate and handle, letter Change workload.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore identical as the utility model above-described embodiment or approximate technical characteristic is used, and obtained other structures, It is within the protection scope of the utility model.

Claims (10)

1. a kind of magnetic key switch, including a pedestal and the lid that is set to above pedestal, the lid are combined with pedestal An accommodating cavity is formed, being provided with one in the accommodating cavity leads core, this, which is led, is provided with an elastic component between core and pedestal, feature exists In further including being set to the magnet assembly for leading core lower end.

2. magnetic key switch according to claim 1, which is characterized in that the magnet assembly includes being set to lead under core The sleeve at end and the magnet being set in casing, wherein be recessed with an annular slot in the casing periphery.

3. magnetic key switch according to claim 2, which is characterized in that it is described lead core lower end upwardly offer one Embedded groove is equipped with a positioning inserting column the embedded groove center position is downwardly convex, is vertically provided in the embedded groove positioned at fixed One fixing body of position inserting column periphery, at least one be inwardly convexly equipped on the fixing body inner wall in the annular slot for being arranged in casing Convex closure；Described sleeve pipe is sheathed on positioning inserting column lower end periphery, and the magnet is made to be located at positioning inserting column lower end.

4. magnetic key switch according to claim 3, which is characterized in that the fixing body is to be located on outside positioning inserting column The circular sleeve enclosed, or it is located on two half circular sleeves of positioning inserting column periphery and corresponding setting.

5. magnetic key switch according to claim 3, which is characterized in that be equipped with one the pedestal upper surface is upward convex Guide post is recessed with one be inserted into together with fixing body for positioning inserting column in the guide post upper end and is oriented to jack downwards；It is described Elastic component is spring, and the upper end of the spring is embedded in embedded groove, and lower end is sheathed on positioning inserting column, fixing body and guide post periphery.

6. magnetic key switch according to claim 1, which is characterized in that be provided with one first card on the pedestal Slot is inserted with a shrapnel in first card slot, has a springing part on the one side for leading core in the shrapnel；It is led described A briquetting corresponding with the springing part of shrapnel is provided in core a side.

7. magnetic key switch according to claim 1 or 6, which is characterized in that be provided with one second on the pedestal Card slot is provided with a torsional spring in second card slot；In the bullet led and be provided on another side of core for springing torsional spring Motion block.

8. magnetic key switch according to claim 1, which is characterized in that the pedestal lower end is provided with several positioning Column and several grabs, several card rail plates buckled into pedestal are extended downward in the lid side.

9. magnetic key switch according to claim 1, which is characterized in that divide on two opposite madial walls of the pedestal It is not provided with a longitudinal card slot, is respectively arranged with sliding in two opposite outer side edges of core in described lead and is arranged in longitudinal card slot One longitudinal strip.

10. magnetic key switch according to claim 1, which is characterized in that the lid is perspex lid, the base Seat is transparent base.