CN204809052U - Key switch, button keyboard and use its device - Google Patents
Key switch, button keyboard and use its device Download PDFInfo
- Publication number
- CN204809052U CN204809052U CN201520237499.8U CN201520237499U CN204809052U CN 204809052 U CN204809052 U CN 204809052U CN 201520237499 U CN201520237499 U CN 201520237499U CN 204809052 U CN204809052 U CN 204809052U
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- Prior art keywords
- switch
- key
- keycap
- button
- key switch
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- 238000003825 pressing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- 238000012938 design process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Push-Button Switches (AREA)
Abstract
The utility model provides a key switch that does not have dead point, simple structure in the time of can making the button action. The key switch includes and is set up the switch in button switching system portion and set up on the switch and be used for the operation the button of switch, the button has: the key cap, the vertical centerline of key cap is not coincident with the vertical centerline of switch, a switch triggers the portion for press the switch, and the rigid support arm, its the switch portion of triggering place one side from the vertical centerline of key cap, the horizontal line that triggers the vertical centerline of vertical centerline and the key cap of portion along the switch outwards extend. The utility model discloses still provide the button keyboard and used its device.
Description
Technical field
The utility model relates to a kind of key switch, also relates to the key board using this key switch, and employs the device of this key switch and employ the device of this key board.
Background technology
In the past, use to represent the mode of operation of switch to operator in a lot of device and make the key switch that the button pressed is illuminated.Fig. 7 illustrates an example of such key switch.Circuit substrate is adjacent to be configured with luminescence unit and switch (not shown), as shown in Figure 7, directly over luminescence unit, is configured with button 3, button 3 support by the elastic arm 5,6 that extends from framework 4.Switch is configured in the rightabout with the framework 4 of extending elastic arm 5,6.When button is stressed, button 3 by being arranged at press section 7 push switch downwards on button 3, thus makes switch triggering.
But, adopt said structure, when operator acts on the location point f shown in Fig. 7 with active force, button does not have trigger switch vertically downward, but rotate as shown in Figure 7 around the axis L by a, b 2, thus making press section 7 cannot trigger switch, key switch produces dead point.
In addition, above-mentioned key switch adopts multiple part to assemble, and complex structure, cost is higher.
In addition, in order to the feel of the specification value Optimum Operation person pressing keys that meet the operating physical force of button, need the cross-section lengths and the size that adjust elastic arm 5,6.And owing to adopting elastic arm, cannot be determined the size of the operating physical force corresponding with the trigger force of switch by theory calculate when designing key switch, needing to produce material object carrys out experiment Analysis, and design process is comparatively loaded down with trivial details.
Utility model content
For the defect existed in prior art, problem of the present utility model is, without dead point, the simple key switch of structure when providing one can make actuation of keys.
The means of dealing with problems
For solving the problem, the utility model provides a kind of key switch, it comprises the switch that is arranged in key switch setting unit and to be arranged on switch and for the button of console switch, described button has: keycap, and the vertical center line of described keycap does not overlap with the vertical center line of switch, and for the switch triggering portion of push switch, described button also has rigid support arm, it is from the switch triggering portion side of the vertical center line of keycap, horizontal line along the vertical center line of the vertical center line in switch triggering portion and keycap stretches out, when keycap is subject to after the power of first direction, wherein first direction is with the vertical centre line parallel of keycap and from key-side to the direction of switch-side, keycap is that the first fulcrum rotates to first direction with the end in the switch triggering portion contacted with switch, relative to this, the front end of rigid support arm rotates to the rightabout of first direction, until the member contact being positioned at the side contrary with switch side of rigid support arm of the front end of rigid support arm and key switch setting unit, thereafter, keycap is that the second fulcrum continues to rotate to first direction with the contact point of the front end of rigid support arm and member contact under stressed effect, thus drive switch triggering portion push switch.
At this, keycap is subject to the power along first direction, does not refer to that the practical operation power of pressing key cap is only limitted to the power along first direction, as long as the practical operation power of pressing keycap comprises the component along first direction.
According to above-mentioned key switch, owing to being provided with rigid support arm, no matter operating physical force is applied to which position on keycap, and button is overall all to turn round for fulcrum with support arm one end away from keycap, thus can not produce dead point.In addition because support arm is rigidity, when pressing, do not produce distortion, therefore when designing key switch, can by the size of theory calculate determination operation power described later, thus design processes simplified.
In above-mentioned key switch, the length being preferably rigid support arm is more than or equal to the length of keycap, to make the operating physical force size of each point on button more close.
In above-mentioned key switch, be preferably keycap, switch triggering portion, rigid support arm are integrally formed, to make structure simple, reduce production cost.
In above-mentioned key switch; button also has switch protection portion; described switch protection portion is positioned at the side contrary with switch triggering portion side of the vertical center line of keycap; after switch has been pressed switch triggering, the component being provided with switch of key switch setting unit has been encountered in switch protection portion.Owing to being provided with switch protection portion, after switch has been pressed switch triggering, switch protection portion can prevent switch triggering portion from continuing to move down and destroying switch, thus plays the effect of protection switch.
In above-mentioned key switch, button is provided with multiple location hole or reference column, in the position corresponding with location hole or reference column of key switch setting unit, reference column or location hole are set, by coordinating of reference column and location hole, button is made to be arranged on switch, when keycap is subject to after the power of first direction, reference column can slide in location hole, but can not deflect.
The utility model also provides a kind of key board, and it comprises multiple elastic arm and multiple key switch, and key board connects the button of multiple key switch by multiple elastic arm, and the button of multiple elastic arm and multiple key switch is integrally formed.Like this, key board uses as independent part, can reduce production cost.
The utility model also provides a kind of device, and it comprises above-mentioned key switch; And be provided with the key switch setting unit of key switch.
The utility model also provides a kind of device, and it comprises: above-mentioned key board; And be provided with the key switch setting unit of key switch of key board.
Utility model effect
According to key switch of the present utility model, simple without dead point, structure when can make actuation of keys.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of key switch of the present utility model.
Fig. 2 is the structural representation of the key switch of the utility model one execution mode.
Fig. 3 is the schematic diagram of the key switch of the utility model one execution mode.
Fig. 4 A ~ Fig. 4 C is the schematic diagram of the switch triggering process of key switch of the present utility model.
Fig. 5 is the schematic diagram of the key switch of another execution mode of the present utility model.
Fig. 6 is the schematic diagram of key board of the present utility model.
Fig. 7 is the schematic diagram of the key switch of prior art.
Embodiment
Below, with reference to accompanying drawing, the execution mode that the utility model relates to is described.
First, with reference to Fig. 1, be described the principle of key switch of the present utility model, Fig. 1 is the schematic diagram of key switch of the present utility model.
When button is arranged on switch, and the vertical center line of keycap is not when overlapping with the vertical center line of switch, as shown in Figure 1, larger rectangle is the keycap of button, is the switch triggering portion of button compared with small rectangle, and switch triggering portion is used for push switch, L1 is the distance (be equivalent to fulcrum O distance to switch) of fulcrum O to switch triggering portion, L2 is the distance of fulcrum O to the operating physical force application point of keycap, and when switch is triggered, the operating physical force of operator presses keycap is F
1, the reaction force in the switch triggering portion of Switch Controller button is F
0, Δ X is the stroke (being equivalent to the stroke of switch) in switch triggering portion, and Δ Y is the stroke of operating physical force application point.
According to lever principle, F
0* L1=F
1* L2, then F
1=F
0* L1/L2.
According to triangular form law, Δ X/L1=Δ Y/L2, then Δ Y=Δ X*L2/L1.
Due to F
0with the characteristic that Δ X is switch self, it is definite value.And the relative position in keycap and switch triggering portion is also fixing, namely Δ L=(L2-L1) is also definite value.So the operating physical force F at keycap place
1all L1 is depended on, i.e. the position of fulcrum with stroke Δ Y.When L1 is larger relative to Δ L, the operating physical force F at keycap place
1the directed force F of proximity switch self is got over stroke Δ Y
0with stroke Δ X.
Thus, inventor of the present utility model expects, if as shown in Figure 2, the support arm (shadow region of Fig. 2) of a rigidity is outwards designed from button, the fulcrum that keycap is rotated is as far as possible away from switch, and like this, no matter operating physical force is applied to which position on keycap, button is overall all to turn round for fulcrum with support arm one end away from keycap, thus can not dead point be produced, in addition, rigid support arm is longer relative to keycap, on keycap, the operating physical force size of each point is more consistent, thus preferably.
Below, according to Fig. 2,3, the structure of the key switch 100 of the utility model one execution mode is described in detail.
As shown in Figure 2, the key switch setting unit of device comprises outer cover plate 103 and circuit board 104.Key switch 100 comprises the button 101 of the switch 102 be arranged on circuit board 104 and the top being arranged at switch 102, and the vertical center line A-A of the keycap 101a of button 100 does not overlap with the vertical center line B-B of switch 102.Button 101 has: the keycap 101a of key shape; For the switch triggering portion 101b of push switch 102; Switch protection portion 101c, it is positioned at the side contrary with switch triggering portion 101c side of the vertical center line A-A of keycap 101a, prevents switch 102 to be destroyed; And rigid support arm 101d, the horizontal line of the vertical center line A-A of its switch triggering portion 101b side from the vertical center line A-A of keycap 101a, the vertical center line B-B along switch triggering portion 101b and keycap 101a stretches out, the length of rigid support arm 101b is greater than the long edge lengths of keycap 101a, to make the operating physical force size of each point on button more close.Because support arm 101d is rigidity, when pressing, do not produce distortion, therefore when designing key switch, can by the size of above-mentioned theory calculate determination operation power, design processes simplified.Keycap 101a, switch triggering portion 101b, switch protection portion 101c, rigid support arm 101d are integrally formed, thus make that the structure of key switch 100 is more simple, cost reduces.
As shown in Figure 3, button 101 can also have multiple location hole, and arranges reference column 105 in the position that the outer cover plate 103 of device is corresponding with location hole, by coordinating of reference column 105 and location hole, positions, make it deflect to button 101.Certainly, also multiple reference column can be set at button 101, and location hole is set in the position that the outer cover plate 103 of device is corresponding with reference column.When keycap 101a is after lower stress, reference column can slide in location hole.
Then, with reference to Fig. 4 A ~ Fig. 4 C, be described the switch triggering process of key switch 100, Fig. 4 A ~ Fig. 4 C is the schematic diagram of the switch triggering process of key switch of the present utility model.
Fig. 4 A illustrates that key switch 100 is in the figure of the state of not stressing.Because accessory size has tolerance, between button 101 and outer cover plate 103, leave gap.In addition, because button has deadweight, the switch triggering portion 101b of button 101 contacts with switch 102, but due to the deadweight of button 101 very light, be far smaller than switch 102 and move down required trigger force, so switch 102 can not be made to move down.
When optional position on keycap 101a is subject to one after the operating physical force F of first direction, wherein, first direction is with the vertical centre line parallel of keycap 101a and from the direction of button 101 side direction switch 102 side, in a preferred embodiment in accordance with the present invention, as shown in Figure 2, because key switch is flat in device, the vertical center line A-A of keycap 101a is in vertical direction, therefore, first direction is direction straight down, as shown in Figure 4 B, owing to leaving gap between button 101 and outer cover plate 103, and button 101 moves down the trigger force needing to overcome switch, so first keycap 101a is that the first fulcrum rotates to first direction with the end of the switch triggering portion 101b contacted with switch 102, relative to this, the front end of rigid support arm 101d rotates to the rightabout of first direction, until the front end of rigid support arm 101d contacts with outer cover plate 103.
After rigid support arm 101d contacts with outer cover plate 103, as shown in Figure 4 C, because the operating physical force F applied also exists, the contact point that the front end that the pivot point of button 101 just moves on to rigid support arm 101d contacts with outer cover plate 103, the trigger force that keycap 101a overcomes switch 102 continues to rotate to first direction, thus drive switch triggering portion 101b push switch 102, until switch 102 triggers completely.Now, switch protection portion 101c encounters circuit board 104, continues to move to first direction, destroy switch 102 to prevent switch triggering portion 101b.
In addition, although the present invention is in vertical direction with the vertical center line of keycap 101a and is illustrated, but the present invention is not limited thereto, the vertical center line of keycap 101a is that any direction can, thus, above-mentioned first direction also correspondingly can change along with the direction of the vertical center line of keycap 101a.As variation, key switch also may be placed in the mode being different from above preferred embodiment, such as, be arranged on perpendicular wall, and now first direction is then horizontal direction (to the left or to the right).
Next, according to Fig. 5, the structure of the key switch 200 of another execution mode of the utility model is described.Fig. 5 is the schematic diagram of the key switch of another execution mode of the present utility model.The component that Fig. 5 and Fig. 2 is identical is endowed identical label, and at this, description is omitted.
As shown in Figure 5, the key switch 100 that the vertical center line A-A that above-mentioned rigid support arm 101d is not only applicable to keycap 101a does not overlap with the vertical center line B-B of switch 102, is also applicable to the key switch 200 immediately below keycap 201a that switch 102 is positioned at button 201.Now, button 200 has two relative rigid support arm 201d, and it extends along left and right directions in the horizontal alignment Fig. 5 at the center of the keycap 201a through key shape.When supposing that operator presses keycap 201a with the power F (as shown in Figure 5) in the left side near keycap 201a, first keycap 201a is that the first fulcrum is rotated counterclockwise with the lower end of the switch triggering portion 201b contacted with switch 102, relative to this, the front end of right side rigid support arm 201d rotates up, until the front end of right side rigid support arm 201d contacts with outer cover plate 103.After right side rigid support arm 201d contacts with outer cover plate 103, the contact point that the front end that the pivot point of button 201 just moves on to right side rigid support arm 201d contacts with outer cover plate 103, the trigger force that keycap 201a overcomes switch 102 continues to be rotated counterclockwise, thus drive switch triggering portion 201b push switch 102, until switch 102 triggers completely.Now, left-side switch protection portion 201c encounters circuit board 104, to prevent switch triggering portion 201b from continuing to move down, destroys switch 102.On the other hand, when operator presses keycap 201a with the power F on the right side near keycap 201a, left side non-yielding prop arm 201d and right-side switch protection portion 201c plays a role, thus makes key switch 200 produce dead point.In addition, button 201 also can have abducent rigid support annulus, thus keycap 201a plane is taken up an official post can produce dead point not at all.
Fig. 6 is the schematic diagram of key board of the present utility model.As shown in Figure 6, key board 300 comprises four elastic arms 301 ~ 304 and two above-mentioned key switches 100, by four tiny elastic arms 301 ~ 304, the button of two key switches is connected, thus key board is used as independent part, to reduce costs.In addition, in the present embodiment, be described though connect two key switches for four elastic arms, also can connect multiple key switch by many elastic arms.
In addition, although the present invention is described for the keycap of key shape, the present invention is not limited thereto, and also can be the keycap of the various shape such as rectangle or circle.
Above execution mode of the present utility model is illustrated, but above-mentioned execution mode is only as an example, not there is the intention limiting utility model scope.These execution modes can be implemented by other various forms, can carry out various omission, displacement, change in the scope not exceeding utility model purport.While these execution modes and its distortion are included in utility model scope and summary, be also contained in the utility model recorded in claims and with in the scope of its equalization.
Symbol description
100,200 key switches
101,201 buttons
101a, 201a keycap
101b, 201b switch triggering portion
101c, 201c switch protection portion
101d, 201d rigid support arm
102 switches
104 circuit boards
105 reference columns
300 key boards
301 ~ 304 elastic arms.
Claims (8)
1. a key switch, it comprises the switch that is arranged in key switch setting unit and to be arranged on described switch and button for operating described switch, described button has: keycap, and the vertical center line of described keycap does not overlap with the vertical center line of described switch; And for pressing the switch triggering portion of described switch, the feature of described key switch is,
Described button also has rigid support arm, the described switch triggering portion side of its vertical center line from described keycap, stretches out along the horizontal line of the vertical center line of the vertical center line in described switch triggering portion and described keycap,
When described keycap is subject to after the power of first direction, wherein said first direction is with the vertical centre line parallel of described keycap and from described key-side to the direction of described switch-side, described keycap is that the first fulcrum rotates to described first direction with the end in the described switch triggering portion contacted with described switch, relative to this, the front end of described rigid support arm rotates to the rightabout of described first direction, until the member contact being positioned at the side contrary with described switch side of described rigid support arm of the front end of described rigid support arm and described key switch setting unit, thereafter, described keycap is that the second fulcrum continues to rotate to described first direction with the contact point of the front end of described rigid support arm and described member contact under stressed effect, thus drive described switch triggering portion to press described switch.
2. key switch as claimed in claim 1, is characterized in that,
The length of described rigid support arm is more than or equal to the length of described keycap.
3. key switch as claimed in claim 1 or 2, is characterized in that,
Described keycap, described switch triggering portion, described rigid support arm are integrally formed.
4. key switch as claimed in claim 1 or 2, is characterized in that,
Described button also has switch protection portion, and described switch protection portion is positioned at the side contrary with described switch triggering portion side of the vertical center line of described keycap,
After described switch has been pressed switch triggering, the component being provided with described switch of described key switch setting unit has been encountered in described switch protection portion.
5. key switch as claimed in claim 1 or 2, is characterized in that,
Described button is provided with multiple location hole or reference column,
In the position corresponding with described location hole or reference column of described key switch setting unit, reference column or location hole are set, by coordinating of described reference column and described location hole, described button is made to be arranged on described switch, when described keycap is subject to after the power of described first direction, described reference column can slide in described location hole.
6. a key board, is characterized in that,
Comprise multiple elastic arm and multiple key switch as described in any one in Claims 1 to 5,
Described key board connects the button of described multiple key switch by described multiple elastic arm,
The button of described multiple elastic arm and described multiple key switch is integrally formed.
7. a device, is characterized in that, comprising:
Key switch as described in any one in Claims 1 to 5; And
Be provided with the key switch setting unit of described key switch.
8. a device, is characterized in that, comprising:
Key board as claimed in claim 6; And
Be provided with the key switch setting unit of the key switch of described key board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237499.8U CN204809052U (en) | 2015-04-17 | 2015-04-17 | Key switch, button keyboard and use its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237499.8U CN204809052U (en) | 2015-04-17 | 2015-04-17 | Key switch, button keyboard and use its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809052U true CN204809052U (en) | 2015-11-25 |
Family
ID=54593832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237499.8U Expired - Fee Related CN204809052U (en) | 2015-04-17 | 2015-04-17 | Key switch, button keyboard and use its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204809052U (en) |
-
2015
- 2015-04-17 CN CN201520237499.8U patent/CN204809052U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |