CN208739095U - Keysheet module - Google Patents

Abstract

The utility model is about a kind of Keysheet module, including circuit board, deckle board and several press-key structures, circuit board is equipped with several capacitive sensing areas, deckle board is erected at circuit board and corresponding several capacitive sensing areas offer several flutings, each press-key structure correspondence is installed in each fluting, press-key structure includes insulating base frame, lid, central spindle and volute spring, insulating base frame has cavity, cover cap is set to insulating base frame and lid offers the through-hole that corresponding cavity configures, central spindle, which is operably worn, connects hole, volute spring is accommodated in cavity and by resilient clamp between central spindle and circuit board, capacitive sensing area is to issue electric signal to sense the compressive deformation of volute spring.Whereby, this Keysheet module can precisely and sensitively react actuation by volute spring and capacitive sensing area.

Description

Keysheet module

Technical field

The utility model is a kind of related keyboard technique, refers in particular to a kind of Keysheet module.

Background technique

The starting running of most machinery equipment or electronic product all needs to be controlled by the key of keyboard, by pressing Key ability turning circuit is pressed, and drives connected machine or electronic product, and then control the function of the machine or electronic product Energy.

The key of existing keyboard mainly includes mechanical and induction type, and wherein mechanical key has operating handle good, but But there are processing procedures and structure is complicated, and the oxidation that can generate the pressing noise and contact point of disturbing people is abnormal and generates failure, because This can overcome the induction type key of the problems of mechanical key, be gradually widely used by user.

However, the problems such as induction type key of existing a part has remained reaction sensitivity and bad positioning accuracy, separately The induction type key of a part then has that handfeel of keys is single, unobvious by sense of touch official to key and volume is more huge asks Topic, it would be highly desirable to be overcome and be solved.

Utility model content

One purpose of the utility model is to provide a kind of Keysheet module, can enable volute spring and capacitive sensing area It reaches precisely and sensitively reacts actuation.

In order to reach above-mentioned purpose, the utility model provides a kind of Keysheet module, including a circuit board, a deckle board and Several press-key structures, the circuit board are equipped with several capacitive sensing areas；The deckle board is the top for being erected at the circuit board, which exists Position corresponding to each capacitive sensing area is equipped with a fluting；Each press-key structure correspondence is installed in each fluting, The press-key structure includes an insulating base frame, a lid, a central spindle and a volute spring, which has a cavity, the lid Body is to be covered on the insulating base frame, which offers a through-hole of the corresponding cavity, which is operably to wear to connect this Through-hole, the volute spring are accommodated in the cavity and by resilient clamp between the central spindle and the circuit board, the capacitive sensing Area is to issue an electric signal to sense the compressive deformation of the volute spring.

Wherein the upper end of volute spring is extended with a upright bar as a further improvement of the utility model, and upright bar is grafting And it is fixed on the inside of central spindle.

As the further improvement of the utility model, wherein being equipped with a block body in through-hole, central spindle forms one and pushes Part pushes a side that part is formed in block body.Wherein block body is a triangular blocks.

As the further improvement of the utility model, wherein press-key structure further includes a spring, and central spindle is equipped with a spring Accommodating area, spring are mounted in spring retention area and have the elastic arm being crossed on block body.

As the further improvement of the utility model, includes a hook part and extend upward from hook part wherein pushing part One push inclined-plane, pushing inclined-plane is elastic arm is pushed away block body.

As the further improvement of the utility model, wherein spring is a torque spring, and torque spring has a coiling Portion, from the both ends of winding section each extend over out one support patch arm and the elastic arm, winding section be mounted in spring retention area, support Patch arm is then resisted against the wall surface in spring retention area, to be formed with a pretwist elastic force in elastic arm.

As the further improvement of the utility model, wherein a perforation is offered at the center in each capacitive sensing area, It is arranged in perforation with providing an illuminator.

As the further improvement of the utility model, wherein insulating base frame one group of corresponding avris each extended over to A few button block, corresponds to avris in the another set of the insulating base frame and is respectively equipped with a card slot, in one group of corresponding avris point of lid Button block She You not corresponded to and do at least catching groove that button consolidation is closed, avris is corresponded in the another set of the lid and each extended over correspondence The fixed hook of clip is done in the card slot.

As the further improvement of the utility model, wherein being extended with one on adjacent with the block body one through-hole wall Guide posts are equipped with a guide channel mobile for guide posts guiding in central spindle.

The utility model also have effects that it is following, be capable of providing with apparent paragraph sense reach promoted feel Purpose.By volute spring in cone setting so that the uniform force of central spindle.By the hidden inside for being received in central spindle of spring, so that The volume of press-key structure can significantly be reduced.It is directly inserted by the upright bar of volute spring solid at the inside of central spindle, pressing It situations such as capable of maintaining the movement of central spindle straight up and down, and will not occur angle different displacement, more will not be because of different angle It presses and causes to press untrue problem.

Detailed description of the invention

Fig. 1 is the stereogram exploded view of the utility model Keysheet module.

Fig. 2 is the combination appearance figure of the utility model Keysheet module.

Fig. 3 is the combination appearance figure at another visual angle of the utility model Keysheet module.

Fig. 4 is the stereogram exploded view of the press-key structure in the utility model.

Fig. 5 is the stereo appearance figure of the lid in the utility model.

Fig. 6 is the cross-sectional view of the central spindle and spring assembly in the utility model.

Fig. 7 is the local assembled sectional view of the utility model Keysheet module.

Fig. 8 is the cross-sectional view of one use state of press-key structure in the utility model.

Fig. 9 is the cross-sectional view of the another use state of press-key structure in the utility model.

Figure 10 is the cross-sectional view of the another use state of press-key structure in the utility model.

Figure 11 is the press-key structure in the utility model and the cross-sectional view of another use state.

Symbol description in attached drawing:

1 press-key structure；10 insulating base frames；11 cavities；12 button blocks；13 card slots；14 columns；20 lids；21 is logical Hole；22 block bodies；23 guide posts；24 catching grooves；25 hooks；30 central spindles；31 spring retention areas；32 push part；321 hook Portion；322 push inclined-plane；33 guide channels；40 springs；41 winding sections；42 elastic arms；43 support patch arm；50 volute springs； 51 upright bars；6 circuit boards；61 capacitive sensing areas；62 perforation；63 illuminators；7 deckle boards；71 flutings；8 keycaps.

Specific embodiment

Detailed description and technology contents in relation to the utility model, cooperation schema is described as follows, however institute's accompanying drawings only mention For reference with illustrate to use, not be used to the utility model is limited.

It please refers to shown in Fig. 1 to Fig. 7, the utility model provides a kind of Keysheet module comprising a circuit board 6, a deckle board 7 And several press-key structures 1.

Circuit board 6 is laid with copper foil circuit (not shown go out) and is provided with the several capacitors being electrically connected with copper foil circuit Induction zone 61 offers a perforation 62 in the center in capacitive sensing area 61, is disposed therein with providing an illuminator 63, this Illuminator 63 can be a light emitting diode (LED), so as to generating backlight effect.Wherein the mode of action in capacitive sensing area 61 be by Hundreds of kHz ~ number MHz high-frequency oscillating circuits a part is drawn out to detection electrode plate, high frequency magnetic field is generated by electrode plate, if there is object When body is close, then body surface and detection electrode plate surface play polarization, and integral capacitor amount is increased or decreased, then by The variation of capacitance can extrapolate the amount of exercise or change in location of motive objects or sensed object indirectly.

Deckle board 7 can be the top position that circuit board 6 can be erected at by pillar, in deckle board 7 for made by metal material Position corresponding to aforementioned each capacitive sensing area 61 is respectively equipped with a fluting 71.

Each press-key structure 1 is to correspond respectively to each 71 installing of fluting, and each press-key structure 1 includes an insulating base frame 10, a lid 20, a central spindle 30, a spring 40 and a volute spring 50.

Insulating base frame 10 is in substantially a cuboid, and position offers a cavity 11, the cavity 11 of the present embodiment therebetween It is round for one, but be not limited with such shape, an at least button block has been each extended on one group of corresponding avris of insulating base frame 10 12, avris, which is corresponded to, in the another set of the insulating base frame 10 is respectively equipped with a card slot 13；It is diagonal in the bottom surface of insulating base frame 10 two Place is extended with a column 14 respectively.

Lid 20 covers the top for setting and being connected to insulating base frame 10, offers a through-hole 21 in the middle position of lid 20, The through-hole 21 of the present embodiment is a rectangular through-hole, but is not limited with such shape, this through-hole 21 corresponds to 11 position of cavity and matches If being extended with a block body 22 in the inner wall of through-hole 21, this block body 22 is in substantially a triangular blocks, but is not with such shape Limit；In addition a guide posts 23 are extended in 21 inner wall of a through-hole of 22 adjacent side of block body；Divide on one group of corresponding avris of lid 20 Aforementioned button block 12 She You not corresponded to and do at least catching groove 24 that button consolidation is closed；Furthermore in the another set corresponding sides of the lid 20 Side, which is each extended over, does the fixed hook 25 of clip corresponding to aforementioned card slot 13.

Central spindle 30 is operably to wear to connect hole 21, and central spindle 30 is formed in the upper position in aforementioned capacitive sensing area 61 It sets, is equipped with a spring retention area 31 in a side of central spindle 30, and form one in the side in spring retention area 31 and push part 32, And a side that part 32 is formed in aforementioned block body 22 is pushed, the part 32 that pushes of the present embodiment includes a hook part 321 and from hook part 321 extend upward one push inclined-plane 322；In addition a guide channel is equipped in the central spindle 30 of 31 adjacent side of spring retention area 33, this guide channel 33 is for guide posts 23 above-mentioned guiding movement.

The spring 40 of the present embodiment is a torque spring, has a winding section 41, prolongs respectively from the both ends of winding section 41 The elastic arm 42 and one stretched supports patch arm 43, and wherein winding section 41 is mounted in spring retention area 31 and follows central spindle 30 Mobile, elastic arm 42 is the top for being crossed on block body 22, is then resisted against (such as Fig. 5 on the wall surface in spring retention area 31 to patch arm 43 It is shown), so that elastic arm 42 be made to be capable of forming a pretwist elastic force.

Volute spring 50 is so that made by metal material, substantially in a cone, the upper end of volute spring 50 is extended with one Upright bar 51, this upright bar 51 are to be plugged and fixed in the inside of central spindle 30, and volute spring 50 is accommodated in aforesaid housing compartment 11.

Further, the Keysheet module of the utility model further includes several keycaps 8, and each keycap 8 corresponds to above-mentioned every One central spindle 30 is done socket lid and is set.

It please refers to shown in Fig. 8 to Figure 11, a keycap 8 (shown in refering to fig. 1) can be socketed in central spindle 30 when use, it is elastic at this time Arm 42 is the recess zone position (as shown in Figure 8) for being crossed on the top of block body 22 and being formed in hook part 321, when by central spindle 30 towards lid When pressing movement is done in 20 direction of body, inclined-plane 322 will be pushed gradually in the elastic arm 42 for pushing inclined-plane 322 for pushing part 32 by amplexiforming Ground elapses (as shown in Figure 9) towards the inside of block body 22, and elastic arm 42 will be disengaged from block body 22 after continuing pressing, by pretwist elastic force Elastic arm 42 will be made to fall and tap hook part 321 and generate paragraph sense (or: sense of inrushing) (as shown in Figure 10), and elastic arm 42 are located at the recess zone position (as shown in figure 11) of hook part 321.The compression of volute spring 50 is made using central spindle 30 simultaneously With enabling capacitive sensing area 61 to issue an electric signal because of the deformation of volute spring 50 and the variation of capacitance.

Conversely, the top of block body 22 is taken to simultaneously in the hook part 321 for being pushed part 32 by elastic arm 42 upward after release central spindle 30 And it is crossed on block body 22.

The foregoing is merely the preferred embodiments of the utility model, not thereby limit to the patent model of the utility model The equivalence changes enclosed, therefore done such as with the content of the present invention, are similarly all contained in the scope of the utility model, Chen Ming is given in conjunction.

Claims (10)

1. a kind of Keysheet module characterized by comprising

One circuit board is equipped with several capacitive sensing areas；

One deckle board is erected at the top of the circuit board, which is equipped with one in the position for corresponding to each capacitive sensing area and opens Slot；And

Several press-key structures, each press-key structure correspondence are installed in each fluting, which includes an insulating base Body, a lid, a central spindle and a volute spring, the insulating base frame have a cavity, which is to be covered on the insulating base frame, should Lid offers a through-hole of the corresponding cavity, which is operably to wear to connect the through-hole, which is to be accommodated in In the cavity and by resilient clamp between the central spindle and the circuit board, which is to sense the volute spring Compressive deformation and issue an electric signal.

2. Keysheet module as described in claim 1, which is characterized in that wherein the upper end of the volute spring is extended with a upright bar, The upright bar is grafting and the inside for being fixed on the central spindle.

3. Keysheet module as described in claim 1, which is characterized in that wherein in the through hole be equipped with a block body, the central spindle at Type has one to push part, this pushes a side that part is formed in the block body.

4. Keysheet module as claimed in claim 3, which is characterized in that wherein the press-key structure further includes a spring, the central spindle Equipped with a spring retention area, which is mounted in the spring retention area and has the elastic arm being crossed on the block body.

5. Keysheet module as claimed in claim 4, which is characterized in that it includes a hook part and from the hook part court that wherein this, which pushes part, One extended upwards pushes inclined-plane, and it is the elastic arm is pushed away the block body that this, which pushes inclined-plane,.

6. Keysheet module as claimed in claim 3, which is characterized in that wherein the block body is a triangular blocks.

7. Keysheet module as claimed in claim 4, which is characterized in that wherein the spring is a torque spring, the torque spring One the patch arm and elastic arm is supported with a winding section, from what the both ends of the winding section each extended over out, which is installation In the spring retention area, the wall surface that patch arm is then resisted against the spring retention area should be supported, so that it is pre- to be formed with one in the elastic arm Turn round elastic force.

8. Keysheet module as described in claim 1, which is characterized in that wherein offered at the center in each capacitive sensing area One perforation is arranged in the perforation with providing an illuminator.

9. Keysheet module as described in claim 1, which is characterized in that wherein in one group of corresponding avris difference of the insulating base frame It is extended with an at least button block, avris is corresponded in the another set of the insulating base frame and is respectively equipped with a card slot, at one group of the lid Corresponding avris is respectively equipped with the corresponding button block and does at least catching groove that button consolidation is closed, and corresponds to avris point in the another set of the lid It is not extended with and does the fixed hook of clip corresponding to the card slot.

10. Keysheet module as claimed in claim 3, which is characterized in that wherein on through-hole wall adjacent with the block body A guide posts are extended with, a guide channel mobile for guide posts guiding is equipped in the central spindle.