CN203588891U - Key module and keyboard thereof - Google Patents
Key module and keyboard thereof Download PDFInfo
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- CN203588891U CN203588891U CN201320640259.3U CN201320640259U CN203588891U CN 203588891 U CN203588891 U CN 203588891U CN 201320640259 U CN201320640259 U CN 201320640259U CN 203588891 U CN203588891 U CN 203588891U
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Abstract
The utility model provides a key module and a keyboard thereof. The key module comprises a base, a scissors-shaped element, and a key cap. The scissors-shaped element is disposed at the base and connected to the base. The key cap is disposed at the scissors-shaped element and connected to the scissors-shaped element. A connecting shaft of a first frame of the scissors-shaped element is rotatably connected to a shaft hole of a second frame, and a travel distance is provided between the shaft hole and the connecting shaft for displacement of the connecting shaft along a predetermined direction. The base is provided with a limiting unit, and the key cap is provided with a pivoted unit. By rotatable pivoting of the first sides of the first frame and the second frame to the pivoted unit, slidable disposing of the second sides of the first and second frames at the limiting unit, and displacement of the connecting shaft in the shaft hole, the first frame is made to rotate relative to the second frame, thereby making the key cap perform up-down lifting motion relative to the base.
Description
Technical field
The utility model relates to a kind of key-press module and keyboard thereof, relates in particular to and a kind ofly provides the even support function of keycap, avoids pressing and cause keycap crooked and can key-press module and the ultra-thin type keyboard of particularly suitable on ultra-thin type keyboard.
Background technology
Press, in view of compact computer is more and more subject to pay attention to (such as portable computer), one utilize double link parallel mechanism (that is, scissor supporting construction) keyboard that forms, can be used to guide keycap to move up and down, and the application of force of balance user on each button.The press-key structure 1 of known technology, as shown in Figure 1, keycap 10 has the first slide connecting part 101 and the first articulated section 102.On base plate 20, there is the second slide connecting part 201 and the second articulated section 202.Elevating mechanism 30 (scissor supporting construction) comprises the first strutting piece 301 and the second strutting piece 302, and wherein the first strutting piece 301 is articulated in the second strutting piece 302.The first strutting piece 301 has the first sliding part 303 and the first drive-connecting shaft 304.The second strutting piece 302 has the second sliding part 305 and the second drive-connecting shaft 306.The first sliding part 303 is mounted slidably in the first slide connecting part 101 of correspondence, and the first drive-connecting shaft 304 is articulated in the second corresponding articulated section 202 rotationally.The second sliding part 305 is mounted slidably in the second slide connecting part 201 of correspondence, and the second drive-connecting shaft 306 is articulated in the first corresponding articulated section 102 rotationally.That is to say, keycap 10 has a stiff end E1 (the first drive-connecting shaft 304 of corresponding elevating mechanism 30 and the second drive-connecting shaft 306) and a sliding end E2 (the first sliding part 303 of corresponding elevating mechanism 30 and the second sliding part 305).
As shown in Figure 1A, when pressing the sliding end E2 of keycap 10, sliding end E2 can be along the horizontal backlash of the first slide connecting part 101 lateral displacements (as shown in arrow M11) one and towards the vertical backlash of base plate 20 direction vertical displacements (as shown in arrow M12), afterwards, sliding end E2 just understands interlock elevating mechanism 30 towards the vertical effective travel of base plate 20 direction displacement one, compresses elastomeric 4.Therefore, when pressing keycap 10 near side, due to sliding end E2 can be first just can interlock elevating mechanism 30 after an invalid stroke to bottom offset, therefore make sliding end E2 produce bad inclination flip sense of touch; And the generation of this lateral displacement stroke can cause the minimizing of the vertical effective travel of press-key structure 1, make to reach the low thickness requirement of slim or ultra-thin type keyboard.In addition, owing to pressing the application of force of keycap 10, often fail to be evenly distributed on whole keycap 10, therefore the phenomenon of press-key structure 1 easy run-off the straight shakiness even cannot drive the action of elevating mechanism 30 completely, cause switch to be triggered, and noise is also comparatively serious in practical operation.Moreover, when known press-key structure 1 is applied to ultra-thin type keyboard, because the vertical backlash of the sliding end E2 of keycap 10 is long, make vertical effective travel deficiency, thus, easily cause the bad problem that electrically conducts, and press keycap 10 corners produce bad upset sense of touch will be more serious, thereby cannot be applied to ultra-thin type keyboard.
On the other hand, at present at the assembling mode that keycap 10 is assembled in to elevating mechanism 30, often must assemble in artificial mode, and also must be divided at least two steps during assembling.First the first slide connecting part 101 of keycap 10 must obliquely combine with the first sliding part 303 of elevating mechanism 30, and then the first articulated section 102 of keycap 10 engages with the second drive-connecting shaft 306 of elevating mechanism 30 again.Hence one can see that, and above-mentioned man-made assembly mode, except cannot effectively promoting the speed of assembling, also easily causes and fails to assemble fraction defective completely.In addition,, because assembling power is wayward, also easily cause keycap 10 in button or the damage of elevating mechanism 30.Therefore, keycap 10 must be assembled by manpower with the assembling process of elevating mechanism 30, and can not implement automatic assembling, cannot increase volume production speed.
In addition, as shown in Figure 2, when the press-key structure 1 of known technology is used in length or erose multiple push-button (as: SPACE of some length, SHIFT, the function key such as BACKSPACE and ENTER) time, because the elevating mechanism 30 of known press-key structure 1 itself just easily produces, unstablely rock and press keycap 10 and easily produce bad inclination, thereby rigidity deficiency, therefore not only must use metal balance bar 40 to traverse the most of region of keycap 10, separate connection keycap 10 and base plate 20, to increase outside the smoothness of keycap 10 when moving up and down, also must increase metal balance bar 40 is configured in around elevating mechanism 30, to solve the problem of press-key structure 1 run-off the straight shakiness, as showing, Fig. 2 must use five metal balance bars 40.In previous designs, because metal balance bar 40 and elevating mechanism 30 configure quite closely, thereby cause press-key structure 1 to be assembled in the difficulty on keycap 10.Moreover under the big or small constant prerequisite of keycap 10, known elevating mechanism 30 is forced to minification and arranges for more metal balance bar 40 to vacate position, more increases original elevating mechanism 30 shortcomings of rigidity deficiency and the expansion of process variation.In addition, more metal balance bar 40 not only causes operational serious noise, more causes assembler assembling to be difficult for, yield variation, and human cost is also higher.
In sum, need to propose a kind of reasonable in design and effectively improve key-press module and the keyboard thereof of above-mentioned disappearance.
Utility model content
Main purpose of the present utility model is to provide a kind of key-press module and keyboard thereof, espespecially a kind of key-press module applicable to ultra-thin type keyboard and keyboard thereof.
Of the present utility model time an object is, wherein four of keycap articulated sections are holddown groove position, not only make the pivot joint of scissors-type element and keycap form the form of two fixed rotating shafts and can effectively reduce lateral displacement, and can simplify keycap Assembly Action, and can implement automatic assembling.
In order to reach above-mentioned object, the utility model provides a kind of key-press module, and it comprises: a base, and it has a limiting unit; One scissors-type element, it is arranged on this base and is connected in this base, this scissors-type element comprises one first framework and one second framework, this first framework has a connecting axle, this second framework is provided with an axis hole, this first framework is contained in this axis hole and is rotationally connected with this second framework by this connecting axle, between this axis hole and this connecting axle, have one stroke apart from for this connecting axle along a predetermined direction displacement; An and keycap, it is arranged on this scissors-type element and is connected in this scissors-type element, this keycap is provided with a hinged unit, the first side of this first framework and the second side of this first framework are articulated in rotationally respectively this hinged unit and are mounted slidably in this limiting unit, and the first side of this second framework and the second side of this second framework are articulated in rotationally respectively this hinged unit and are mounted slidably in this limiting unit; Wherein, by the first side of this first framework and the first side of this second framework, be articulated in rotationally respectively this hinged unit, and first the second side of framework and the second side of this second framework be mounted slidably respectively in this limiting unit, and this connecting axle is in this axis hole intrinsic displacement, this first framework is rotated relative between this second framework, and then make relative this base of this keycap do oscilaltion campaign.
In an embodiment of the utility model key-press module, along above-mentioned predetermined direction, the displacement in this axis hole is the displacement of single-degree-of-freedom direction to this connecting axle.
In an embodiment of the utility model key-press module, this axis hole is an elongate slot with respect to this connecting axle, and there is the first relative contact-making surface and the second contact-making surface, with provide this connecting axle of guiding between the first contact-making surface of this axis hole and the second contact-making surface along above-mentioned predetermined direction displacement.
In an embodiment of the utility model key-press module, this hinged unit is arranged at the lower inner bottom surface of this keycap, this hinged unit comprises two the first articulated sections and two the second articulated sections, this first framework and this second framework all have two fixed rotating shafts and at least one sliding axle, and this limiting unit comprises at least one the first slide connecting part and at least one the second slide connecting part; Two fixed rotating shafts of this first framework are articulated in this corresponding first articulated section rotationally, two fixed rotating shafts of this second framework are articulated in this corresponding second articulated section rotationally, at least one sliding axle of this first framework is restricted and be mounted slidably this at least one first slide connecting part in correspondence, and at least one sliding axle of this second framework is restricted and be mounted slidably this at least one second slide connecting part in correspondence.
In an embodiment of the utility model key-press module, this first framework is articulated in this first side that this first side of this hinged unit and this second framework be articulated in this hinged unit and has each other a fixed range, and this first framework is slidedly arranged on this second side that this second side of this limiting unit and this second framework be slidedly arranged on this limiting unit and has each other a variation distance.
In an embodiment of the utility model key-press module, this key-press module also includes an elastomer and a film circuit board, this elastomer is arranged between this keycap and this base, being used for supporting this keycap moves relative to this base, this film circuit board is arranged between this elastomer and this base, is used for producing a driving signal by this elastomeric pressing.
The utility model separately provides a kind of keyboard, and it comprises: a base, and it has multiple limiting units, multiple scissors-type elements, it is arranged at respectively on this base and is connected in this base, respectively this scissors-type element comprises one first framework and one second framework, this first framework has a connecting axle, this second framework is provided with an axis hole, this first framework is contained in this axis hole and is rotationally connected with this second framework by this connecting axle, between this axis hole and this connecting axle, have one stroke distance for this connecting axle along a predetermined direction displacement, multiple keycaps, its respectively correspondence be arranged on described multiple scissors-type element and be connected in described multiple scissors-type element, respectively this keycap is provided with a hinged unit, respectively the first side of this first framework is articulated in respectively this corresponding hinged unit and the second side of this first framework is mounted slidably this limiting unit in correspondence rotationally, and the first side of this second framework is articulated in respectively this corresponding hinged unit rotationally and the second side of this second framework is mounted slidably this limiting unit in correspondence, multiple elastomers are placed in respectively the bottom surface of described multiple keycaps, and a film circuit board, it is arranged on this base, and this film circuit board is corresponding to described multiple keycaps, wherein, the first side by described multiple the first frameworks and described multiple the second frameworks is articulated in respectively this hinged unit rotationally, and the second side of described multiple the first frameworks and the second side of described multiple the second frameworks are mounted slidably respectively in this limiting unit, and described multiple connecting axle is in this axis hole intrinsic displacement, described multiple the first framework is rotated relative between described multiple the second frameworks, and then make relative this base of described multiple keycap do oscilaltion campaign, and described multiple elastomer matches and can press this film circuit board on this base and produce signal.
In an embodiment of the utility model keyboard, respectively the lower inner bottom surface of this keycap is provided with this hinged unit, this hinged unit comprises two the first articulated sections and two the second articulated sections, this first framework and this second framework all have two fixed rotating shafts and at least one sliding axle, this limiting unit comprises at least one the first slide connecting part and at least one the second slide connecting part, wherein two fixed rotating shafts of this first framework are articulated in this corresponding first articulated section rotationally, and two fixed rotating shafts of this second framework are articulated in this corresponding second articulated section rotationally; At least one sliding axle of this first framework is restricted and be mounted slidably this at least one first slide connecting part in correspondence, and at least one sliding axle of this second framework is restricted and be mounted slidably this at least one second slide connecting part in correspondence.
In an embodiment of the utility model keyboard, along above-mentioned predetermined direction, the displacement in this axis hole is the displacement of single-degree-of-freedom direction to this connecting axle.
In an embodiment of the utility model keyboard, this axis hole is an elongate slot with respect to this connecting axle, and there is the first relative contact-making surface and the second contact-making surface, with provide this connecting axle of guiding between the first contact-making surface of this axis hole and the second contact-making surface along above-mentioned predetermined direction displacement.
The utility model at least has advantages of following: the utility model is articulated in rotationally respectively hinged unit and is mounted slidably in limiting unit by arrange in pairs or groups upside and the downside of first, second framework of the stroke distances between connecting axle and axis hole, and make keycap at once interlock the first framework and the second framework both simultaneously together towards the vertical effective travel of base direction displacement one, and reach the relative base of keycap and make the effect of oscilaltion campaign among a small circle.
In addition, key-press module of the present utility model, by the structure of scissors-type element, can make uniform force application is distributed on whole keycap, not only can make keycap directly towards the vertical effective travel of base direction displacement one (not almost being with or without the generation of backlash), and because keycap is difficult for tilting, and make key-press module there is enough rigidity, can reduce the configuration of balancing pole, and reduce the assembling degree of difficulty of key-press module; In addition, the middle section of keycap, surrounding edge or any position all have consistent rigidity and press feel.
For enabling further to understand feature of the present utility model and technology contents, refer to following about detailed description of the present utility model and accompanying drawing, but appended accompanying drawing only provide with reference to and explanation use, be not used in addition limitr of the utility model.
Accompanying drawing explanation
Fig. 1 is the organigram of known a kind of key-press module;
Figure 1A is that known key-press module is pressed process schematic diagram;
Fig. 2 is the organigram of known another kind of key-press module;
Fig. 3 is the perspective exploded view of the utility model key-press module;
Fig. 4 is the perspective exploded view of another angle of the utility model key-press module;
Fig. 5 is the three-dimensional combination figure of the utility model scissors-type element;
Fig. 6 is the schematic diagram () before the utility model key-press module is pressed;
Fig. 7 is the schematic diagram (two) after the utility model key-press module is pressed;
Fig. 8 is the mechanism action schematic diagram of key-press module of the present utility model;
Fig. 8 A is the partial enlarged drawing of Fig. 8; And
Fig. 9 is the organigram of another embodiment of the utility model key-press module.
Wherein, description of reference numerals is as follows:
Known technology
1 press-key structure
10 keycaps
20 base plates
30 elevating mechanisms
40 metal balance bars
101 first slide connecting parts
102 first articulated sections
201 second slide connecting parts
202 second articulated sections
301 first strutting pieces
302 second strutting pieces
303 first sliding parts
304 first drive-connecting shafts
305 second sliding parts
306 second drive-connecting shafts
E1 stiff end
E2 sliding end
The utility model
100,100 ' key-press module
1,1 ' base
11 limiting units
111 first slide connecting parts
111a opening
112 second slide connecting parts
112a opening
12 buckles
13 conduits
2 scissors-type elements
21 first frameworks
21s the first side wall
211a connecting axle
21t the first side
21e the second side
212a fixed rotating shaft
212b sliding axle
213 through holes
22 second frameworks
22s the 3rd sidewall
221a axis hole
22t the first side
22e the second side
222a fixed rotating shaft
222b sliding axle
3,3 ' keycap
31 hinged unit
311 first articulated sections
312 second articulated sections
32 clamping parts
33 articulated sections
4 elastomers
5 film circuit boards
61 first trunnion shafves
62,63 secondary balance shafts
U1 the first contact-making surface
U2 the second contact-making surface
C axis
A medial axis
L1 fixed range
L2 changes distance
F1 the first side
F2 the second side
D1 the first distance
D2 second distance
Inner bottom surface under S
L stroke distances
Embodiment
Described embodiment mentions quantity or its fellow below, and unless otherwise mentioned, otherwise application category of the present utility model should not be subject to its quantity or its fellow's restriction.The specific detail herein disclosing should not be interpreted as restriction, but only should do the basis of claim, and be used as a representative basis come teaching those of ordinary skills make its etc. be able in fact any suitable mode and utilize the utility model of all kindsly, comprise the utilization various features that disclose and combination that may not understand revealer herein herein.In addition, the direction term that the utility model is mentioned, for example: left and right, front or rear etc., be only the direction with reference to attached drawings, be for explanation, to be not used for limiting the utility model.Key-press module 100 of the present utility model can be specially adapted to ultra-thin type keyboard, and below key-press module 100 is applied to ultra-thin type keyboard is that example describes.
Refer to Fig. 3 to Fig. 5, the utility model provides a kind of key-press module 100, and it mainly comprises a base 1, a scissors-type element 2 and a keycap 3; Wherein, as shown in Figures 3 and 4, scissors-type element 2 is arranged on base 1 and is connected in base 1, and keycap 3 is arranged on scissors-type element 2 and is connected in scissors-type element 2.Scissors-type element 2 comprises one first framework 21 and one second framework 22, be combined to form X shape (as Fig. 5), and the first framework 21 has a connecting axle 211a, and the second framework 22 is provided with an axis hole 221a, whereby, the first framework 21 can be contained in axis hole 221a and be rotationally connected with the second framework 22 by connecting axle 211a; Wherein, above-mentioned axis hole 221a is an elongate slot with respect to connecting axle 211a, it is the displacement of one degree of freedom direction haply that guiding connecting axle 211a can be provided, axis hole 221a has the first relative contact-making surface U1 and the second contact-making surface U2, and connecting axle 211a can displacement between the first contact-making surface U1 and the second contact-making surface U2.
As shown in Figure 4, base 1 can be made by metallic plate, also can use other suitable material, it has a limiting unit 11, keycap 3 is provided with a hinged unit 31, and the first side 21t (or can be described as upside) of the first framework 21 is articulated in rotationally respectively hinged unit 31 and is mounted slidably in limiting unit 11 with the second side 21e (or can be described as downside), similarly, the first side 22t (or can be described as upside) of the second framework 22 and the second side 22e (or can be described as downside) are articulated in rotationally respectively hinged unit 31 and are mounted slidably in limiting unit 11.It should be noted that, because being articulated in the first side 22t that the first side 21t of hinged unit 31 and the second framework 22 be articulated in hinged unit 31, the first framework 21 there is each other a fixed range L1 (shown in ginseng Fig. 6 and Fig. 7), and the first framework 21 is slidedly arranged on the second side 22e that the second side 21e of limiting unit 11 and the second framework 22 be slidedly arranged on limiting unit 11 and has each other a variation distance L 2 (shown in ginseng Fig. 6 and Fig. 7), therefore when pressing key-press module 100 of the present utility model, as shown in FIG. 6 and 7, the connecting axle 211a of the first framework 21 can displacement between the first contact-making surface U1 and the second contact-making surface U2, now, due to fixed range, L1 is constant, and variation distance L 2 is can be outside a limiting distance of limiting unit 11 cumulative or decrescence again, make the relative base 1 of keycap 3 do stable oscilaltion campaign.
More specifically, between the axis hole 221a of the connecting axle 211a of the first framework 21 and the second framework 22, form one stroke distance L, this trip distance L being namely used for of providing of axis hole 221a is guided connecting axle 211a and is carried out the displacement of one degree of freedom direction haply.When pressing keycap 3, by connecting axle 211a, in axis hole 221a, produce a lateral displacement (being moved to the second contact-making surface U2 from the first contact-making surface U1), and by the first framework 21, be slidedly arranged on the second side 22e that the second side 21e of limiting unit 11 of base 1 and the second framework 22 be slidedly arranged on the limiting unit 11 of base 1 and towards direction away from each other, slide and also produce separately a lateral displacement respectively, three positions provide scissors-type element 2 to press down the required lateral displacement of stroke thus, simultaneously, the two ends that form keycap 3 due to the hinged unit 31 of keycap 3 and the first framework 21 of scissors-type element 2 and the pivot joint of the second framework 22 are all fixed rotating shafts and can effectively reduce invalid lateral displacement, and then can make scissors-type element 2 towards the displacement of base 1 direction can produce hardly vertically to backlash.In other words, so design can make vertical vertically the increasing to effective travel to effective travel compared to known press-key structure 1 of key-press module 100, then can make keycap 3 not only can be stably relatively base 1 do in vertical direction but also be elevating movement among a small circle; The embodiment surveying according to the utility model one, take the ultra-thin type keyboard of the about 3.0mm of thickness as example, when the vertical stroke of key-press module 100 is about 1mm, the vertical effective travel of above-mentioned scissors-type element 2 is about 0.9mm～1mm.In other words, scissors-type element 2 is the vertical stroke no better than key-press module 100 towards the vertical effective travel of base 1 direction displacement, therefore make key-press module 100 of the present utility model be specially adapted to slim or ultra-thin type keyboard, uses.
In sum, key-press module 100 of the present utility model, it is to utilize connecting axle 211a displacement one stroke distance L in axis hole 221a, and the first side 21t of arrange in pairs or groups the first framework 21 and the second framework 22 and 22t are articulated in respectively the hinged unit 31 of keycap 3 rotationally, and the second side 21e and the 22e of first framework 21 and the second framework 22 are mounted slidably respectively the limiting unit 11 in base 1, and reach the relative base 1 of keycap 3 and do the effect of the campaign of oscilaltion among a small circle in vertical direction, therefore the utility model can create the keyboard of ultralow stroke.In addition, when pressing keys module 100, because the first framework 21 is slidedly arranged on the second side 22e that the second side 21e of limiting unit 11 and the second framework 22 be slidedly arranged on limiting unit 11 away from each other, therefore pressing the strength of keycap 3 can be evenly distributed on whole keycap 3, make keycap 3 at once interlock the first framework 21 and the second framework 22 both simultaneously together towards the base vertical effective travel of 1 direction displacement one (being the vertical stroke of key-press module 100), therefore it is certain to have advantages of that precisely trigger switch and keycap 3 press down start.Moreover, because pressing of keycap 3 is stressed evenly, therefore keycap 3 is difficult for tilting, keycap 3 is moved up and down reposefully, no matter therefore middle section, surrounding edge or any position that user presses keycap 3 all consistent rigidity (solid) well press feel, and the noise in reduction operation effectively.Therefore, key-press module 100 of the present utility model can create vertical stroke and be about the ultra-thin type keyboard of 0.70～1.50mm, but is not limited to the vertical stroke of this scope.
Specific embodiment of the utility model below will be described in detail in detail, please refer to Fig. 3 and Fig. 4, Fig. 3 is the perspective exploded view of the utility model key-press module, and Fig. 4 is the perspective exploded view of another angle of the utility model key-press module, and Fig. 5 is the three-dimensional combination figure of the utility model scissors-type element; As shown in Figures 3 and 4, the utility model provides a kind of key-press module 100, and it mainly comprises that a base 1, a scissors-type element 2 and a keycap 3 form, and the first framework 21 of scissors-type element 2 and the second framework 22 are pivotally connected to one another.Key-press module 100 more can include an elastomer 4 and a film circuit board 5, elastomer 4 is arranged between keycap 3 and base 1, be used for supporting keycap 3 and move relative to base 1, film circuit board 5 is arranged between elastomer 4 and base 1, is used for producing a driving signal by pressing of elastomer 4.Please arrange in pairs or groups with reference to figure 3 and Fig. 5, if the connecting axle 211a of definition the first framework 21 has an axis C, perpendicular to axis C, define a medial axis A, the first framework 21 is respectively equipped with two fixed rotating shaft 212a and two sliding axle 212b (as Fig. 3) in the both sides of axis C, and the second framework 22 is respectively equipped with two fixed rotating shaft 222a and two sliding axle 222b in the both sides of axis C; Wherein two fixed rotating shaft 212a of above-mentioned the first framework 21 define a location center of rotation, and two sliding axle 212b define a slippage axle center; Two fixed rotating shaft 222a of the second framework 22 define a location center of rotation, and two sliding axle 222b define a slippage axle center.This locating rotation axle center of this first framework 21 and this second framework 22 is articulated in respectively the bottom surface of this keycap 3 rotationally, and this slippage axle center of this first framework 21 and this second framework 22 is mounted slidably respectively on this base 1.
Introduce the concrete structure of the first framework 21 and the second framework 22 below.Please consult again Fig. 3 and Fig. 4, the first framework 21 is a rectangular body structure haply, in the middle of it, be provided with a manhole 213 and comprise two relative the first side wall 21s and two relative the first side 21t and the second side 21e, the centre of two relative the first side wall 21s is protruded respectively and is formed with a connecting axle 211a, connect the first side 21t at the first side wall 21s two ends and the two ends of the second side 21e and form respectively a fixed rotating shaft 212a and a sliding axle 212b, fixed rotating shaft 212a and sliding axle 212b are parallel to each other.The connecting axle 211a of the present embodiment is roughly column type, but is not restricted to this, can be also elliptic cylinder.The second framework 22 is a rectangular frame shape structure roughly, it comprises that two relative the second sidewall 22s and two relative the first side 22t and the second side 22e connect to form, the middle rectangular frame mouth roughly that forms, this frame mouth can be accommodated the first framework 21 just, connects the first side 22t at the second sidewall 22s two ends and the two ends of the second side 22e and forms respectively a fixed rotating shaft 222a and a sliding axle 222b; Wherein, by connecting axle 211a, be articulated in axis hole 221a and the first framework 21 and the second framework 22 are connected in one, to form a complete scissors-type element 2.The configuration of the first framework 21 and the second framework 22 is not restricted to above-mentioned shape and structure.In addition, above-mentioned connecting axle 211a and axis hole 221a are also interchangeable in the setting of the first framework 21 and the second framework 22.
As shown in Figure 4, the lower inner bottom surface S of keycap 3 is provided with a hinged unit 31, hinged unit 31 includes 2 first articulated sections 311 and 2 second articulated sections 312, 2 first articulated sections 311 and 2 second articulated sections 312 connect two fixed rotating shaft 212a of the first framework 21 and two fixed rotating shaft 222a of the second framework 22 in the mode of pivot joint respectively, make two fixed rotating shaft 212a of the first framework 21 be articulated in rotationally the first corresponding articulated section 311, and two fixed rotating shaft 222a of the second framework 22 are articulated in the second corresponding articulated section 312 rotationally, and then make the fixed rotating shaft 212a of the first framework 21 and the fixed rotating shaft 222a of the second framework 22 there is fixed range L1 (also can be described as the first articulated section 311 of hinged unit 31 and the fixed range of the second articulated section 312), now the hinged unit 31 of keycap 3 forms two fixed rotating shafts with the pivot joint of scissors-type element 2.As shown in Figure 3, base 1 is for can integrated punching going out to be the limiting unit 11 of L-type (but being not restricted to this shape), wherein, limiting unit 11 can include 2 first slide connecting parts 111 and 2 second slide connecting parts 112, 2 first slide connecting parts 111 and 2 second slide connecting parts 112 are upward through respectively and are arranged on the film circuit board 5 of base 1 top and are connected in two sliding axle 212b of the first framework 21 and two sliding axle 222b of the second framework 22, and the two sliding axle 212b that make the first framework 21 are restricted and be mounted slidably in the first slide connecting part 111 of correspondence, and two sliding axle 222b of the second framework 22 are restricted and be mounted slidably in the second slide connecting part 112 of correspondence, and then make two sliding axle 212b of the first framework 21 and two sliding axle 222b of the second framework 22 there is variable distance L 2 (also can be described as the outer variation distance of the first slide connecting part 111 and second slide connecting part 112 of limiting unit 11).In the present embodiment, preferably, base 1 has the first relative side F1 and the second side F2,2 first 111 of slide connecting parts and 2 second slide connecting parts 112 lay respectively at the first side F1 and the second side F2, and an opening 111a of each the first slide connecting part 111 is towards the first side F1 of base 1, and an opening 112a of each the second slide connecting part 112 is towards the second side F2 of base 1.
It is worth mentioning that, key-press module 100 of the present utility model can be realized automatic assembling, for instance, when wish is assembled in scissors-type element 2 by keycap 3 (now scissors-type element 2 has been articulated in axis hole 221a by connecting axle 211a and the first framework 21 and the second framework 22 are connected in one), can be first automation ground two sliding axle 222b horizontal positioned of two sliding axle 212b of the first framework 21 and the second framework 22 are aligned in after 2 first slide connecting parts 111 and 2 second slide connecting parts 112 that are slightly the design of L-type tool radian on base 1 to (its schematic diagram as Fig. 7 imagination remove the state of keycap 3), by corresponding respectively to 2 first articulated sections 311 of keycap 3 and 2 second articulated sections 312, be sticked in two fixed rotating shaft 212a of the first framework 21 and two fixed rotating shaft 222a of the second framework 22 press again, and rapid-assembling completes key-press module 100, therefore the automatic assembling of key-press module 100 of the present utility model can promote the speed of assembling effectively, significantly increase volume production speed.
A bit of supplementary notes, the utility model can also be done other change, such as the side wall construction of appropriate change the first framework 21 and the second framework 22, for example the first framework 21 only has a sliding axle 212b and is arranged on the middle position of the second side 21e, and the base 1 of arranging in pairs or groups only arranges a chute at its opposite position.Only; the articulated section structure 311 of the keycap 3 of the above key-press module 100; 312 and the fixed rotating shaft 212a of scissors-type element 2; the design that 222a couples; it is only preferred embodiment of the present utility model; when can not using as the scope that limits the utility model and implement, all equalizations of doing according to the utility model claim change or modify, and are the scope of the utility model protection.
Please again with reference to figure 5, it is a preferred embodiment of the present invention, as shown in the figure, the connecting axle 211a of the first framework 21 is illustrated as a circular shaft, the better slotted eye that is illustrated as of axis hole 221a of the second framework 22, but the shape of connecting axle 211a and axis hole 221a is not limited to this, wherein, axis hole 221a with respect to connecting axle 211a as long as an elongate slot, it is the displacement of one degree of freedom direction haply that guiding connecting axle 211a is provided, therefore, axis hole 221a can be also the slotted eye of slot or other shapes.Between axis hole 221a and connecting axle 211a, there is one stroke distance L, can when pressing keycap 3, carry out displacement for connecting axle 211a.It should be noted that, above-mentioned stroke distances L is accurately start and be applicable to one of key technical feature of ultra-thin type keyboard of the utility model key-press module 100, and it can design decision by the vertical stroke of key-press module 100 (also can be described as the height of key-press module 100) and the size of scissors-type element 2.Related content will be specified in hereinafter.
Refer to Fig. 6 and Fig. 7, Fig. 6 is the schematic diagram before not the pressing of the utility model key-press module 100, and Fig. 7 is the schematic diagram after the pressing of the utility model key-press module 100.The start that presses down with reply of the utility model key-press module 100 is described by this two figure.As shown in Figure 6, when key-press module 100 is not touched, the keycap 3 of key-press module 100 is positioned at one first height (H1), and when key-press module 100 is touched, as shown in Figure 7, keycap 3 is subject to a downforce, elastomer 4 (ask for an interview Fig. 3, omit in Fig. 6 and Fig. 7) is extruded and presents compressive state.Simultaneously, the first framework 21 and one second framework 22 of scissors-type element 2 swing along with keycap 3, connecting axle 211a is moved to the second contact-making surface U2 from the first contact-making surface U1, make the first framework 21 and the second framework 22 parallel to each other and simultaneously towards base 1 direction to bottom offset, make elastomer 4 press the film circuit board 5 (ask for an interview Fig. 3, omit) on base 1 in Fig. 6 and Fig. 7 and produce signal.Now, the keycap 3 of key-press module 100 is positioned at one second height (H2), and wherein the distance, delta H between this first height H 1 and this second height H 2 is the vertical stroke Δ H of key-press module 100.Next when keycap 3 is no longer touched, keycap 3 is upwards supported because of the elastic-restoring force of elastomer 4, the first framework 21 and the second framework 22 rotate along with the traction of keycap 3, connecting axle 211a is back to the first contact-making surface U1 from the second contact-making surface U2, so that keycap 3 moves to the position of this first height H 1, that is the home position before not being pressed.The structural design of the utility model key-press module 100 itself (providing one stroke to be articulated in rotationally respectively hinged unit 31 and downside apart from side on, the first framework 21 and the second framework 22 between connecting axle 211a and axis hole 221a is mounted slidably respectively in limiting unit 1), keycap 3 is moved up and down reposefully and be difficult for tilting, and the middle section, surrounding edge or any position that make keycap 3 all consistent rigidity (solid) press feel, there is enough rigidity to support the weight of whole keycap 3.Therefore, the quality-improving of whole key-press module 100.
It should be noted that, when pressing key-press module 100 of the present utility model, as shown in Figure 6, the connecting axle 211a of the first framework 21 is moved to the second contact-making surface U2 (the lateral displacement amount of connecting axle 211a equals stroke distances L) from the first contact-making surface U1, because the distance L 1 between keycap 3 fixed rotating shafts of the first framework 21 and keycap 3 fixed rotating shafts of the second framework 22 remains unchanged, therefore the opening 111a of self-corresponding the first slide connecting part 111 of the sliding axle 212b of the first framework 21 slides towards the first side F1 (ginseng Fig. 3) of base 1, the opening 112a of self-corresponding second slide connecting part 112 of sliding axle 222b of the second framework 22 slides towards the second side F2 (ginseng Fig. 3) of base 1, and make the sliding axle 212b of the first framework 21 and the sliding axle 222b of the second framework 22 away from each other.
As shown in Figure 7, in the present embodiment, in the process pressing down at keycap 3, the relative base 1 of the sliding axle 212b of the first framework 21 relative base 1 of sliding axle 222b of one first distance B 1, the second framework 22 second distance D2 that slides that slides.
Refer to Fig. 8 and Fig. 8 A, show that the mechanism action schematic diagram of key-press module of the present utility model is with its partial enlarged drawing.Below coordinate Fig. 8 that the due minimum range Lmin of the above-mentioned stroke distance L of the utility model is described.Wherein, d is roughly the half length (by the distance between connecting axle 211a axle center to the axle center of fixed rotating shaft 222a of the first framework 21) of the second framework 22 of scissors-type element 2, for known design parameter, Δ H is the vertical stroke (the first height of not pressed by keycap 3 and keycap 3 are pressed roughly the horizontal second difference in height highly between the two) of keycap 3, is known design parameter; Θ is the angle of this second framework and horizontal plane.
The utility model is set the advance stroke distances Lmin of a minimum of above-mentioned connecting axle 211a, and allows the sliding axle 212b of the first framework 21 and the relative base 1 of sliding axle 222b of the second framework 22 can produce respectively the first distance B 1 and the second distance D2 of lateral displacement.Suppose that connecting axle 211a is roughly circular shaft and radius is r.
By relational expression sin Θ=Δ H/d 1/sin Θ=d/ Δ H ... formula (1);
Wherein (D1+D2)=L*cos Θ ... formula (2);
By formula (1) substitution formula (2), obtain relational expression L
min=((D1+D2) * tan Θ) * (d/ Δ H).
At this, should be specified, above is only the relational expression that illustrates a kind of account form gained of Lmin, and the present invention is not limited to this account form and relational expression obtains L
min, also can be obtained by other modes.
Refer to Fig. 9, Fig. 9 is another embodiment 100 ' organigram of the utility model key-press module; Due to the key-press module 100 ' of this embodiment use as Fig. 3-5 key-press module 100 structure (scissors-type element 2 with keycap 3 ' with base 1 ' in conjunction with upper) there is enough rigidity, so two of 6 needs of the balance component of the present embodiment are attached to the first trunnion shaft 61 of the end of keycap 3,62 and one are attached to the secondary balance shaft 63 of the middle section of keycap 3, must there is not extra balance component to be trapped among scissors-type element 2 surroundings, compared to known technology, can be less with two metal balance bars 40 (as Fig. 2).And because the assembling of balance component easily produces fraction defective, the utility model key-press module 100 ' can reduce balance component assembling generation fraction defective and reach 5%.Moreover trunnion shaft still less means reduction operation noise, simplifies assembly program, increases packaging efficiency and reduces human cost.In addition, because key-press module 100 has enough rigidity, be enough to support keycap 3 ' and do the vertical movement with respect to base 1 ', therefore compared to known technology (as Fig. 2), key-press module 100 need not minification, and secondary balance shaft 63 can reduced volume, therefore not only can significantly reduce the assembling degree of difficulty of key-press module 100, more can reduce material cost and process variation, especially keycap 3.
In sum, the utility model is real has met the important document of creating patent, files an application in accordance with the law.The only above revealer of institute, is only the utility model preferred embodiment, from not limiting interest field of the present utility model with this, therefore according to the utility model right, will go the equalization of doing change or modify, and still belongs to the scope that this case is contained.
Claims (10)
1. a key-press module, is characterized in that, comprising:
One base, it has a limiting unit;
One scissors-type element, it is arranged on this base and is connected in this base, this scissors-type element comprises one first framework and one second framework, this first framework has a connecting axle, this second framework is provided with an axis hole, this first framework is contained in this axis hole and is rotationally connected with this second framework by this connecting axle, between this axis hole and this connecting axle, have one stroke apart from for this connecting axle along a predetermined direction displacement; And
One keycap, it is arranged on this scissors-type element and is connected in this scissors-type element, this keycap is provided with a hinged unit, the first side of this first framework and the second side of this first framework are articulated in rotationally respectively this hinged unit and are mounted slidably in this limiting unit, and the first side of this second framework and the second side of this second framework are articulated in rotationally respectively this hinged unit and are mounted slidably in this limiting unit;
Wherein, by the first side of this first framework and the first side of this second framework, be articulated in rotationally respectively this hinged unit, and the second side of this first framework and the second side of this second framework are mounted slidably respectively in this limiting unit, and this connecting axle is in this axis hole intrinsic displacement, this first framework is rotated relative between this second framework, and then make relative this base of this keycap do oscilaltion campaign.
2. key-press module as claimed in claim 1, is characterized in that, along above-mentioned predetermined direction, the displacement in this axis hole is the displacement of single-degree-of-freedom direction to this connecting axle.
3. key-press module as claimed in claim 1, it is characterized in that, this axis hole is an elongate slot with respect to this connecting axle, and has the first relative contact-making surface and the second contact-making surface, to guide between first contact-making surface of this connecting axle at this axis hole and the second contact-making surface along above-mentioned predetermined direction displacement.
4. key-press module as claimed in claim 1, it is characterized in that, this hinged unit is arranged at the lower inner bottom surface of this keycap, this hinged unit comprises two the first articulated sections and two the second articulated sections, this first framework and this second framework all have two fixed rotating shafts and at least one sliding axle, and this limiting unit comprises at least one the first slide connecting part and at least one the second slide connecting part; Two fixed rotating shafts of this first framework are articulated in this corresponding first articulated section rotationally, two fixed rotating shafts of this second framework are articulated in this corresponding second articulated section rotationally, at least one sliding axle of this first framework is restricted and be mounted slidably this at least one first slide connecting part in correspondence, and at least one sliding axle of this second framework is restricted and be mounted slidably this at least one second slide connecting part in correspondence.
5. key-press module as claimed in claim 1, it is characterized in that, this first framework is articulated in this first side that this first side of this hinged unit and this second framework be articulated in this hinged unit and has each other a fixed range, and this first framework is slidedly arranged on this second side that this second side of this limiting unit and this second framework be slidedly arranged on this limiting unit and has each other a variation distance.
6. key-press module as claimed in claim 1, it is characterized in that, this key-press module also includes an elastomer and a film circuit board, this elastomer is arranged between this keycap and this base, being used for supporting this keycap moves relative to this base, this film circuit board is arranged between this elastomer and this base, is used for producing a driving signal by this elastomeric pressing.
7. a keyboard, is characterized in that, comprising:
One base, it has multiple limiting units;
Multiple scissors-type elements, it is arranged at respectively on this base and is connected in this base, respectively this scissors-type element comprises one first framework and one second framework, this first framework has a connecting axle, this second framework is provided with an axis hole, this first framework is contained in this axis hole and is rotationally connected with this second framework by this connecting axle, between this axis hole and this connecting axle, have one stroke distance for this connecting axle along a predetermined direction displacement;
Multiple keycaps, its respectively correspondence be arranged on described multiple scissors-type element and be connected in described multiple scissors-type element, respectively this keycap is provided with a hinged unit, respectively the first side of this first framework is articulated in this corresponding hinged unit rotationally, the second side of this first framework is mounted slidably this limiting unit in correspondence, the first side of this second framework is articulated in respectively this corresponding hinged unit rotationally, and the second side of this second framework is mounted slidably this limiting unit in correspondence;
Multiple elastomers, are placed in respectively the bottom surface of described multiple keycaps; And
One film circuit board, it is arranged on this base, and this film circuit board is corresponding to described multiple keycaps;
Wherein, by the first side of described multiple the first frameworks and the first side of described multiple the second frameworks is articulated in respectively the second side of this hinged unit and described multiple the first frameworks rotationally and the second side of described multiple the second frameworks is mounted slidably respectively in this limiting unit, and described multiple connecting axle is respectively at described multiple axis hole intrinsic displacements, described multiple the first framework is rotated relative between described multiple the second frameworks, and then make relative this base of described multiple keycap do oscilaltion campaign, and described multiple elastomer matches and can press this film circuit board on this base to produce signal.
8. keyboard as claimed in claim 7, it is characterized in that, respectively the lower inner bottom surface of this keycap is provided with this hinged unit, this hinged unit comprises two the first articulated sections and two the second articulated sections, this first framework and this second framework all have two fixed rotating shafts and at least one sliding axle, this limiting unit comprises at least one the first slide connecting part and at least one the second slide connecting part, wherein two fixed rotating shafts of this first framework are articulated in this corresponding first articulated section rotationally, and two fixed rotating shafts of this second framework are articulated in this corresponding second articulated section rotationally; At least one sliding axle of this first framework is restricted and be mounted slidably this at least one first slide connecting part in correspondence, and at least one sliding axle of this second framework is restricted and be mounted slidably this at least one second slide connecting part in correspondence.
9. keyboard as claimed in claim 8, is characterized in that, along above-mentioned predetermined direction, the displacement in this axis hole is the displacement of single-degree-of-freedom direction to this connecting axle.
10. keyboard as claimed in claim 8, it is characterized in that, this axis hole is an elongate slot with respect to this connecting axle, and has the first relative contact-making surface and the second contact-making surface, to guide between first contact-making surface of this connecting axle at this axis hole and the second contact-making surface along above-mentioned predetermined direction displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640259.3U CN203588891U (en) | 2013-10-16 | 2013-10-16 | Key module and keyboard thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640259.3U CN203588891U (en) | 2013-10-16 | 2013-10-16 | Key module and keyboard thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203588891U true CN203588891U (en) | 2014-05-07 |
Family
ID=50586765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320640259.3U Expired - Fee Related CN203588891U (en) | 2013-10-16 | 2013-10-16 | Key module and keyboard thereof |
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| Country | Link |
|---|---|
| CN (1) | CN203588891U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576134A (en) * | 2013-10-16 | 2015-04-29 | 光宝电子(广州)有限公司 | Key module and keyboard thereof |
| CN105428123A (en) * | 2014-09-19 | 2016-03-23 | 光宝电子(广州)有限公司 | Key structure capable of adjusting press stroke and electronic device with key structure |
| CN105719875A (en) * | 2014-11-24 | 2016-06-29 | 光宝科技股份有限公司 | Key capable of reducing resonance noise |
| CN108664137A (en) * | 2018-05-18 | 2018-10-16 | 明基智能科技（上海）有限公司 | Keyboard structure |
| CN109243893A (en) * | 2017-07-11 | 2019-01-18 | 光宝科技股份有限公司 | Press-key structure |
| TWI832473B (en) | 2022-10-05 | 2024-02-11 | 達方電子股份有限公司 | Keyswitch and keyboard thereof |
-
2013
- 2013-10-16 CN CN201320640259.3U patent/CN203588891U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576134A (en) * | 2013-10-16 | 2015-04-29 | 光宝电子(广州)有限公司 | Key module and keyboard thereof |
| CN105428123A (en) * | 2014-09-19 | 2016-03-23 | 光宝电子(广州)有限公司 | Key structure capable of adjusting press stroke and electronic device with key structure |
| CN105719875A (en) * | 2014-11-24 | 2016-06-29 | 光宝科技股份有限公司 | Key capable of reducing resonance noise |
| CN105719875B (en) * | 2014-11-24 | 2018-03-27 | 光宝科技股份有限公司 | Key capable of reducing resonance noise |
| CN109243893A (en) * | 2017-07-11 | 2019-01-18 | 光宝科技股份有限公司 | Press-key structure |
| US10504666B2 (en) | 2017-07-11 | 2019-12-10 | Lite-On Technology Corporation | Key structure |
| CN108664137A (en) * | 2018-05-18 | 2018-10-16 | 明基智能科技（上海）有限公司 | Keyboard structure |
| TWI832473B (en) | 2022-10-05 | 2024-02-11 | 達方電子股份有限公司 | Keyswitch and keyboard thereof |
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Legal Events
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| 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: 20140507 Termination date: 20211016 |