CN202189707U

CN202189707U - A combined key and a keyboard

Info

Publication number: CN202189707U
Application number: CN2011202720723U
Authority: CN
Inventors: 陈基煌; 许建士
Original assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Current assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Priority date: 2011-07-19
Filing date: 2011-07-19
Publication date: 2012-04-11
Anticipated expiration: 2021-07-19

Abstract

The utility model discloses a combined key. The combined key includes a key cap capable of moving up and down and having a room in a bottom surface; a metal supporting plate having a hole and including a cantilever bridge; a switch disposed below the hole of the supporting plate; a magnetic element disposed in the room of the key cap. When the key cap is not pressed, the magnetic element is adhered on the cantilever bridge and has a certain distance from the switch, thereby making the combined key in a disconnection state. When the key cap is pressed, the magnetic element abuts against the switch, thereby making the combined key in a connection state. When the key cap is released, a magnetic force between the magnetic element and the cantilever bridge makes the key cap returns to an initial state. The utility model provides a combined key utilizing the magnetic force as a drive force that needed for returning of the key cap to the initial state.

Description

Key combination and keyboard

Technical field

The utility model relates to button (keyswitch) and keyboard, relates in particular to a kind of magnetic attraction that utilizes with button and keyboard as keycap reset drives power.

Background technology

Except the portable apparatus that uses contact panel, with regard to the use habit of notebook computer, keyboard still is one of indispensable input equipment.But because the trend of notebook computer slimming, be applied to the demand that keyboard on the notebook computer also has slimming thereupon.

The standing flexible member that is equipped with in the button of convention, like rubber bowl body (Rubber Dome) etc., the elasticity source that keycap resets when freeing as the button application of force.Yet the flexible member of convention has certain height, so button need have bigger height to hold flexible member.In other words, because of being provided with flexible member,, and be unfavorable for the slimming trend of notebook computer in the button of convention so can make the size of key combination to reduce again.

The key combination technology of utilization magnetic part has been applied to some button production of products, and relevant preceding case technology can be with reference to United States Patent (USP) 4453148.

The utility model content

Therefore, one of purpose of the utility model is to provide a kind of button that utilizes magnetic attraction with the required actuating force that resets as keycap, to solve the above problems.

According to the key combination of an embodiment comprise can upper and lower motion keycap, its bottom surface has a space; Metal profile, it has a hole, and this metal profile comprises a cantilever bridge; Switch is positioned at below the hole of this supporting bracket; Magnetic element, it places this space of keycap; Wherein, when this keycap was not pressed, this magnetic element was adsorbed in this cantilever bridge and has a spacing with this switch, makes this key combination be in off-state, and when this keycap is pressed when downward, this magnetic element this switch of conflicting makes this key combination be in conducting state.When this power discharges,, make this keycap return back to this initial state because of the magnetic attraction of magnetic element and this cantilever bridge.

According to an embodiment, wherein keycap has the pivot joint part, and this keycap is articulated on this metal profile through this pivot joint part.

According to another embodiment, a kind of key combination comprise can upper and lower motion keycap, it has a space; Metal profile, it has a hole, and this metal profile comprises bridge post and bridge floor; Switch is positioned at below the hole of this supporting bracket; Magnetic element, it places this space of keycap; Wherein, when this keycap was not pressed, this magnetic element was adsorbed in this bridge floor and has a spacing with this switch; Make this key combination be in off-state; When this keycap is pressed when downward, this magnetic element this thin film switch of conflicting makes this key combination be in conducting state.When this power discharges,, make this keycap return back to this initial state because of the magnetic attraction of magnetic element and this bridge floor.

According to this embodiment, wherein this switch is a thin film switch.

Use above-mentioned key combination, another embodiment of the utility model is the keyboard that comprises this kind key combination, and this keyboard comprises a plurality of this kind key combination.

Other detailed features of the utility model, and details can learn by the explanation and the claim of following execution mode.

Description of drawings

Figure 1A is the explosive view according to the key combination of the utility model one preferred embodiment.

Figure 1B sets up upright figure (when switch is disconnection) jointly for the key groups shown in Figure 1A.

Fig. 1 C sets up upright figure (when switch is conducting) jointly for the key groups shown in Figure 1A.

Fig. 2 A is the explosive view according to the key combination of the utility model one preferred embodiment.

Fig. 2 B sets up upright figure (when switch is disconnection) jointly for the key groups shown in Fig. 2 A.

Fig. 2 C sets up upright figure (when switch is conducting) jointly for the key groups shown in Fig. 2 A.

Embodiment

With reference to Figure 1A, the utility model key combination 10 1 embodiment comprise can upper and lower motion keycap 100, its bottom surface has a space 102; Metal profile 104, it has a hole 106, and this metal profile 104 comprises cantilever bridge 108; Switch 109 is positioned at hole 106 belows of this supporting bracket 104; Magnetic element 107, it places this space 102 of keycap.When this keycap 100 is not stressed when promptly not being pressed; Magnetic element 107 is adsorbed in this cantilever bridge 108 and has a spacing with this switch 109; This keycap 100 is in initial state (like Figure 1B) and this key combination 10 is in off-state (OFF); When this keycap 100 is pressed when downward, 107 of this magnetic elements are conflicted and are activated this switch 109, make this key combination 10 be in conducting state (ON).When this power of executing discharges,, can make this keycap 100 return back to this initial state automatically because of the magnetic attraction between magnetic element 107 and this cantilever bridge 108.

Keycap 100 has the part of pivot joint 100a, and this keycap 100 is connected with this metal profile 104 with the pivot joint mode.And this switch 109 can be single-layer printed circuit switching plate, bilayer film switch or three-layer thin-film switch.

Figure 1B is the upright figure of the key groups shown in Figure 1A (when switch is disconnection), that is does not have external force to apply this moment.Because the suction between magnetic element 107 and the cantilever bridge 108, keycap 100 moves up to halt on naturally, and at this moment, switch 109 is an off-state.

Fig. 1 C sets up upright figure (when switch is conducting) jointly for the key groups shown in Figure 1A, that is have external force to put on the keycap 100 this moment.This external force need be resisted the magnetic attraction between magnetic element 107 and the cantilever bridge 108, can make keycap 100 be moved downward to down halt, and when halt arrived instantly, switch 109 was a conducting state by magnetic element 107 activations.If institute's application of force disappears, then the state of key combination 100 then is transformed into Figure 1B by Fig. 1 C afterwards.

In another embodiment of Fig. 2 A, a kind of key combination 20 comprise can upper and lower motion keycap 200, it has a space 202; Metal profile 204, it has a hole, and this metal profile 204 comprises bridge post 208a and bridge floor 208b; Switch 209 is positioned at below the hole of this supporting bracket 204; Magnetic element 207, it places this space 202 of keycap 200.When this keycap 200 was not stressed, this keycap 200 was in initial state (like Fig. 2 B) and this key combination 20 is in off-state (OFF), and magnetic element 207 is adsorbed in this bridge floor 208b and has a spacing with this switch 109.Stressed when downward when this keycap 200, this magnetic element 207 is conflicted and is activated these switches 209, makes this key combination 200 be in conducting state (ON).When this power discharges,, this keycap 200 is moved upward return back to this initial state because of the magnetic attraction of magnetic element 207 with this bridge floor 208b.

Fig. 2 B sets up upright figure (when switch is disconnection) jointly for the key groups shown in Fig. 2 A.That is do not have external force to apply this moment.Because the suction between magnetic element 207 and the bridge floor 208a, keycap 200 moves up to halt on naturally, and at this moment, switch 209 is an off-state.

Fig. 2 C sets up upright figure (when switch is conducting) jointly for the key groups shown in Fig. 2 A.That is have external force to put on the keycap 200 this moment.This external force need be resisted the magnetic attraction between magnetic element 207 and the bridge floor 208a, can make keycap 200 be moved downward to down halt, and when halt arrived instantly, switch 209 was a conducting state by magnetic element 207 activations.If the power of being executed disappears, then the state of key combination 200 then is transformed into Figure 1B by Fig. 1 C afterwards.

In addition, the distance between two bridge post 208a can be designed to rough identical with the width of magnetic element 207, so that restrain the lateral displacement in the magnetic element 207 upper and lower motions.And this switch 209 can be thin film switch.

Use above-mentioned key combination 10, another embodiment of the utility model is the keyboard that comprises this kind key combination 10, and this keyboard comprises a plurality of this kind key combination 10.

Cooperating diagram can understand the utility model by above-mentioned explanation can reach the purpose that creation sets really, therefore have practicality.

Will be appreciated that more than explanation is preferred embodiment, and restrictive absolutely not, the zone of reasonableness of the utility model is defined by claim and impartial scope thereof.

Claims

1. a key combination is characterized in that, comprises:

Keycap that can upper and lower motion, its bottom surface has a space;

Metal profile, it has a hole, and this metal profile comprises a cantilever bridge;

Switch is positioned at below the hole of this supporting bracket;

Magnetic element, it places this space of keycap;

Wherein, when this keycap was not pressed, this magnetic element was adsorbed in this cantilever bridge and has a spacing with this switch, makes this key combination be in off-state, and when this keycap is pressed when downward, this magnetic element this switch of conflicting makes this key combination be in conducting state.

2. key combination as claimed in claim 1 is characterized in that this keycap has the pivot joint part, and this keycap is articulated on this metal profile through this pivot joint part.

3. key combination as claimed in claim 1 is characterized in that, this switch is a thin film switch.

4. a key combination is characterized in that, comprises:

Keycap that can upper and lower motion, it has a space;

Metal profile, it has a hole, and this metal profile comprises bridge post and bridge floor;

Switch is positioned at below the hole of this supporting bracket;

Magnetic element, it places this space of keycap;

Wherein, when this keycap was not pressed, this magnetic element was adsorbed in this bridge floor and has a spacing with this switch; Make this key combination be in off-state; When this keycap is pressed when downward, this magnetic element this thin film switch of conflicting makes this key combination be in conducting state.

5. key combination as claimed in claim 4 is characterized in that, this switch is a thin film switch.

6. a keyboard is characterized in that, comprises like any described key combination of claim in the claim 1 to 3.

7. a keyboard is characterized in that, comprises like any described key combination of claim in the claim 4 to 5.