CN205881755U

CN205881755U - Permanent magnet button

Info

Publication number: CN205881755U
Application number: CN201620694130.4U
Authority: CN
Inventors: 鲍海峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2017-01-11
Anticipated expiration: 2026-06-30

Abstract

The utility model discloses a permanent magnet button, it includes key cap, key base and press device, a serial communication port, the press device includes the touch -control post, touch -control toe end sets up first group permanent magnet, the key base sets up second group permanent magnet, under the normality, can for the NS pole pair of first group permanent magnet should the permanent magnet NS of second group places extremely side by side, also can for the SN pole pair of first group permanent magnet should the permanent magnet SN of second group places extremely side by side, just first group permanent magnet can along with the touch -control post is in reciprocate between the key base, realize operation of a push -button switch. Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a pair of permanent magnet button, simple structure, long service life, simultaneously, the press device sets up two sets of permanent magnets, utilizes opposite poles attract's between the permanent magnet effect, realizes operation of a push -button switch, feels, also can not feel tired out when the user uses for a long time.

Description

A kind of permanent magnet button

Technical field

This utility model relates to permanent magnet button technical field, is specially a kind of permanent magnet button.

Background technology

In prior art, keyboard switch is the parts that mainly comprise of keyboard, and keyboard is computer and various automatization sets Standby important input equipment, existing keyboard switch includes mechanical key and membrane pushbutton.The structure of mechanical key, its bag Including spring cap sleeve or keycap bearing sleeve, spring and the most a piece of above shell fragment etc., assembly precision requires height, lacks again location dress Putting, shell fragment must weld again reliable the most just being reached one by one and be electrically connected with, thus assemble the most laborious, bothersome, take a lot of work, cost improves； And membrane pushbutton, knock is little, needn't weld, without the elastic fatigue phenomenon of shell fragment, but its pressing touch, and send a telegraph conducting State produces the appropriate percussion sound again not as mechanical type is the most easily distinguished.

The utility model patent of Application No. CN201310399225.4 discloses a kind of magnetic button, including two blocks of permanent magnetism Ferrum, utilizes Magnet homopolar-repulsion heteropole attracting band moving contact to engage or disconnects, and reaches the mesh ground of switch, it is ensured that dynamic circuit connector and dynamic circuit breaker are opened The effective reliability closed.But, two blocks of Magnet repel long-time magnetic of placing and can cancel out each other, and affect its service life, and its Feel is bad.

In view of drawbacks described above, it is new that this utility model creator obtains this practicality finally through research for a long time and practice Type.

Utility model content

For solving above-mentioned technological deficiency, the technical solution adopted in the utility model is, it is provided that a kind of permanent magnet button, its It is characterised by, including keycap, keyseat and press device,

Described keycap and described keyseat snapping form a containing cavities, are used for accommodating described press device；

Described press device includes that touch-control column, described touch-control column bottom arrange first group of permanent magnet；

Described keyseat is arranged on the lowermost end of whole device, and arranges second group of permanent magnet inside described keyseat；

Under normality, can be that the most corresponding described second group of permanent magnet N/S of N/S of described first group of permanent magnet is put the most side by side Put, it is also possible to the most corresponding described second group of permanent magnet S/N of S/N for described first group of permanent magnet places the most side by side, and described One group of permanent magnet can move up and down between described keyseat along with described touch-control column, it is achieved the action of press button.

It is also preferred that the left described first group of permanent magnet or second group of permanent magnet are replaced by magnetic metal.

It is also preferred that the left be provided with recess in the middle part of described keyseat, described recess arranges a square opening, described second group of permanent magnetism Ferrum is arranged on one group of opposite side of described opening, and arranges one group of slide rail in described open outer side.

It is also preferred that the left described press device also includes that rectangular susceptor, the top of described pedestal are cruciate cylinder, described pedestal Bottom connects described touch-control column.

It is also preferred that the left it also includes that key lid, described key lid shroud in the outside of described keycap, the top within described key lid sets It is equipped with card trace, described card trace and described cross cylinder phase clamping.

It is also preferred that the left the one of described pedestal group of opposite side downwardly extends out two trapezoidal sides, described side and described keyseat phase Coupling, prevents described press device landing.

It is also preferred that the left arrange the slide block of a projection on described side, described slide block coordinates with described slide rail, makes described by press-fiting Put and can move up and down between described base.

It is also preferred that the left described a kind of permanent magnet button, it also includes the first contact chip and the second contact chip, inside described keyseat One lateral edges arrange can place described first contact chip and the groove of described second contact chip.

It is also preferred that the left the upper and lower both ends open of described keycap, peristome is square, and the cruciate cylinder of described press device is exposed In described keycap opening part.

It is also preferred that the left described keyseat arranges a pair pin thread/box, described keycap arranges a pair box/pin thread, described keyseat Box/pin thread phase the buckle of pin thread/box and described keycap.

Compared with prior art, the beneficial effects of the utility model are: this utility model provides a kind of permanent magnet button, its Including keycap, keyseat and press device, simple in construction, service life is long, and meanwhile, press device arranges two groups of permanent magnets, utilizes The effect that between permanent magnet, there is a natural attraction between the sexes, it is achieved the action of press button, good hand touch, also will not feel when user uses for a long time Tired out.

Accompanying drawing explanation

Fig. 1 is the structural representation of permanent magnet button in this utility model embodiment one.

Fig. 2 is the top view at the key lid back side in this utility model embodiment one.

Fig. 3 is first group of permanent magnet and the second group of permanent magnet location drawing under normal conditions in this utility model embodiment two.

Fig. 4 is the position under pressed state for first group of permanent magnet in this utility model embodiment two and second group of permanent magnet Put figure.

Detailed description of the invention

Below in conjunction with accompanying drawing, to this utility model, above-mentioned and other technical characteristic and advantage are described in more detail.

Embodiment one:

Refer to shown in Fig. 1, Fig. 2,

Fig. 1 is the structural representation of permanent magnet button in this utility model embodiment.

Fig. 2 is the top view at the key lid back side in this utility model embodiment.

A kind of permanent magnet button that this utility model provides includes keycap 1, keyseat 2, press device 3 and key lid 4, keycap 1 With keyseat 2 snapping, form a containing cavities placing press device 3, this containing cavities open top after snapping, be square.

Press device 3 includes rectangular susceptor 31, and its upper end is cruciate cylinder 32, and 31 1 groups of opposite side of pedestal stretch out, Formed two up-narrow and down-wide to side, and at two to being respectively arranged with slide block 33 on side, slide block 33 is a bulge-structure, Being provided with touch-control column 34 on rectangular susceptor 31, touch-control column 34 is tetragonal body structure, and bottom is provided with first group of permanent magnet 35, first Group permanent magnet 35 can move up and down along with touch-control column 34, and the shape of first group of permanent magnet 35 can be circular, it is also possible to for length Square and optimal with circle.

Outside keyseat 2 one group is to arranging a pair first pin thread/boxes 21 on side, and described first pin thread/box 21 Being made up of two protuberances, another group outside keyseat 2 is to being provided with a pair outside buckle of engaging portion 22, described snapping on side Portion is hook-shaped, for being interlockingly connected with keyboard.Being provided with recess in the middle part of keyseat 2, the opening of recess is tetragonal structure, at square Limit on be provided with second group of permanent magnet 23, the shape of second group of permanent magnet 23 can be circular, it is also possible to for rectangle, and with Rectangle is optimal.Extending one group of slide rail 25 on the outside of one group of opposite side of recess opening, slide block 33 can move on slide rail 25, And it being provided with being placed into contact with the groove of sheet at the edge of keyseat 2 side, this groove is placed in the side of containing cavities.

Keycap about 1 both ends open, peristome is square, and the cruciate cylinder of press device 3 is exposed to keycap 1 opening Place, keycap 1 includes four sides, two of which to arrange on side a pair with keyseat the first pin thread/box 21 match the One box/pin thread 11, and described buckle 11 snaps onto the outside of keyseat 2, two other side of keycap 1 is slope, tiltedly Through hole 12 is set on domatic.

Key lid 4 shrouds the outside at keycap 1, and the inner tip of key lid 4 arranges cross card trace 41, with cross cylinder 32 Phase clamping.

Permanent magnet button also includes the first contact chip 4 and the second contact chip 5, is fitted and fixed with in the groove of keyseat 2, second Corresponding first contact chip 4 of contact chip 5 is arranged, and the first contact chip 4 and the second contact chip 5 are with the use of, and the first contact chip 4 and Two contact chips 5 are metal copper sheet.

First contact chip 4 arranges the first pin 41, and the second contact chip 5 arranges the second pin 51, is used for through and is fixed on On keyseat 2, the first contact chip 4 also sets up the first contact 42, and the first contact 42 arranges a dogleg section, for the Two contact chips 5 are fitted together to, and on the first contact 42, riveting has the first contact 43, the first contact 43 to be arranged on dogleg section tetragon one The midpoint on bar limit.

Connecting on second contact chip 5 and have the second contact 52, the second contact 52 is elastic circular arc folding from the second contact chip 5 Curved extend, instead of traditional inclined-plane projection that utilizes and directly act on the mode on contact so that the of the second contact chip 5 Elastic fatigue is less likely to occur two contacts 52, keeps the most elastic, extends the service life of product, the second contact 52 Upper riveting has the second contact 53；It is convex that second contact 53 the right and left riveted on second contact 52 is respectively arranged with elastic circular arc Put 54, and the second contact 53 is positioned at the centre of two circular arc salient points 54, can contact with the press device 3 slided up and down, it is achieved merit Can switching.

The operation principle of permanent magnet button is: whole press device 3 be in the normal state under time, the N/S of first group of permanent magnet 35 The N/S of the most corresponding described second group of permanent magnet 23 places the most side by side, or the S/N the most corresponding described second of first group of permanent magnet 35 The S/N of group permanent magnet 23 places the most side by side, first group of permanent magnet 35 and second group of permanent magnet 23 appropriately distance to be kept.When having During external force contact press device 3, press device 3 moves down, and first group of permanent magnet 35 departs from the attraction of second group of permanent magnet 23, Along with touch-control column 34 slides down to the recess of base, meanwhile, touch the second contact 53 and the first contact chip of the second contact chip 5 First contact 43 of 4, makes the first contact chip 4 and the second contact chip 5 turn on power supply, when external force is cancelled, and first group of permanent magnet 35 can utilize and second group of permanent magnet 23 effect that there is a natural attraction between the sexes reset, and the first contact chip 4 and the second contact chip 5 are with electric simultaneously Source disconnects, and completes the action of a press button.

Embodiment two:

Refer to shown in Fig. 3, Fig. 4,

Fig. 3 is first group of permanent magnet and the second group of permanent magnet location drawing under normal conditions in this utility model embodiment.

Fig. 4 is first group of permanent magnet and the second group of permanent magnet position under pressed state in this utility model embodiment Figure.

In place of the difference of a kind of permanent magnet button in this utility model embodiment and the permanent magnet button in embodiment one Being, second group of permanent magnet includes the first permanent magnet 23 and the second permanent magnet 24, and the first permanent magnet 23 and the second permanent magnet 24 It is separately positioned on one group of opposite side of base 2 tetragonal structure, and under normality, first group of permanent magnet 35 is the first permanent magnet 23 He In the middle of second permanent magnet 24.

Embodiment three:

In place of the difference of a kind of permanent magnet button in this utility model embodiment and the permanent magnet button in embodiment one Being, second group of permanent magnet 23 includes the first permanent magnet, the second permanent magnet and the 3rd permanent magnet, and first group of 35 permanent magnetism under normality Ferrum is between the first permanent magnet, the second permanent magnet and the 3rd permanent magnet.

Embodiment four:

In place of the difference of a kind of permanent magnet button in this utility model embodiment and the permanent magnet button in embodiment one Being, first group of permanent magnet or second group of permanent magnet can replace with magnetic metal.

Although this utility model being described in detail with reference to previous embodiment, those skilled in the art is come Saying, the technical scheme described in foregoing embodiments still can be modified by it, or enters wherein portion of techniques feature Row equivalent, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all should Within being included in protection domain of the present utility model.

Claims

1. a permanent magnet button, it is characterised in that include keycap, keyseat and press device,

Under normality, can be that the most corresponding described second group of permanent magnet N/S of N/S of described first group of permanent magnet places, also the most side by side Can be that the most corresponding described second group of permanent magnet S/N of S/N of described first group of permanent magnet places the most side by side, and described first group forever Magnet can move up and down between described keyseat along with described touch-control column, it is achieved the action of press button.

2. a kind of permanent magnet button as claimed in claim 1, it is characterised in that described first group of permanent magnet or second group of permanent magnetism Ferrum is replaced by magnetic metal.

3. a kind of permanent magnet button as claimed in claim 1, it is characterised in that be provided with recess in the middle part of described keyseat, described Recess arranges a square opening, and described second group of permanent magnet is arranged on one group of opposite side of described opening, and at described opening Outside arranges one group of slide rail.

4. a kind of permanent magnet button as claimed in claim 3, it is characterised in that described press device also includes rectangular susceptor, The top of described pedestal is cruciate cylinder, and described pedestal bottom connects described touch-control column.

5. a kind of permanent magnet button as claimed in claim 4, it is characterised in that it also includes that key lid, described key lid shroud The outside of described keycap, the top within described key lid is provided with card trace, described card trace and described cross cylinder phase clamping.

6. a kind of permanent magnet button as claimed in claim 4, it is characterised in that one group of opposite side of described pedestal downwardly extends out Two trapezoidal sides, described side is coupled with described keyseat, prevents described press device landing.

7. a kind of permanent magnet button as claimed in claim 6, it is characterised in that the slide block of a projection is set on described side, Described slide block coordinates with described slide rail, enables described press device to move up and down between described keyseat.

8. a kind of permanent magnet button as claimed in claim 2, it is characterised in that it also includes the first contact chip and the second contact Sheet, the lateral edges within described keyseat is arranged can place described first contact chip and the groove of described second contact chip.

9. a kind of permanent magnet button as claimed in claim 4, it is characterised in that the upper and lower both ends open of described keycap, peristome Being square, the cruciate cylinder of described press device is exposed to described keycap opening part.

10. a kind of permanent magnet button as claimed in claim 9, it is characterised in that described keyseat arranges a pair pin thread/box, Described keycap arranges a pair box/pin thread, the pin thread/box of described keyseat and the box of described keycap/pin thread phase buckle.