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KR101870587B1 - Ultra-thin keyboard switch - Google Patents

Ultra-thin keyboard switch Download PDF

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Publication number
KR101870587B1
KR101870587B1 KR1020177001071A KR20177001071A KR101870587B1 KR 101870587 B1 KR101870587 B1 KR 101870587B1 KR 1020177001071 A KR1020177001071 A KR 1020177001071A KR 20177001071 A KR20177001071 A KR 20177001071A KR 101870587 B1 KR101870587 B1 KR 101870587B1
Authority
KR
South Korea
Prior art keywords
movable contact
pivot connection
contact piece
base body
piece
Prior art date
Application number
KR1020177001071A
Other languages
Korean (ko)
Other versions
KR20170016982A (en
Inventor
푸시 우
Original Assignee
동관 카이후아 일렉트로닉스 코., 엘티디.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동관 카이후아 일렉트로닉스 코., 엘티디. filed Critical 동관 카이후아 일렉트로닉스 코., 엘티디.
Publication of KR20170016982A publication Critical patent/KR20170016982A/en
Application granted granted Critical
Publication of KR101870587B1 publication Critical patent/KR101870587B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • H01H13/7073—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards characterised by springs, e.g. Euler springs

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  • Push-Button Switches (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

The present invention discloses an ultra-thin keyboard switch comprising a base body, a fixed contact piece, a support piece, a movable contact piece, a heart, a saucer and a keycap; Wherein the fixed contact piece and the supporting piece are separately provided in the base body, the fixed contact piece is provided with a first welding leg and a fixed contact, the supporting piece is provided with a second welding leg, All of the first weld legs extend out of the base body; One end of the movable contact piece is held in contact with and electrically connected to the supporting piece, and the movable contact is provided at the other end of the movable contact piece, the movable contact is positioned above the fixed contact; The movable contact piece is moved in the X-shaped structure by connecting the upper frame and the huttle so that the movable contact piece is moved so that the existing guide column is used instead of the conventional type, So that even when the finger acts on any position of the keycap, the stomach and the hartle are interlocked with each other to move the movable contact piece, so that the fixed contact piece and the movable contact piece are electrically connected to each other, The product becomes more convenient to use.

Description

 [0001] ULTRA-THIN KEYBOARD SWITCH [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology of a keyboard switch, and more particularly to an ultra-thin keyboard switch.

The keyboard switch includes a base, an upper cover, a fixed contact piece, a movable contact piece, and a button, wherein the upper cover and the base are enclosed to form a receiving cavity, The stationary contact piece, the movable contact piece and the button are installed in the receiving cavity. One end of the button is exposed to the outside of the accommodation cavity, and the button is moved upward and downward by pushing the button. The movable contact piece is brought into contact with or separated from the fixed contact piece.

The conventional keyboard switch structure can provide the user with the effect of blocking or continuing the connection between the fixed contact piece and the movable contact piece, which is certainly progressive, but there are still many deficiencies in the self structure and the use performance in actual use The conventional keyboard switch does not achieve the best use effect and the operation efficiency in practical application, and the drawbacks are as follows.

Since the button of the conventional keyboard switch is a guide column type, the thickness of the entire product is increased, and the button is mounted at the center of the bottom of the keycap. When the finger is applied to only one edge of the keycap, , And furthermore, conduction between the fixed contact piece and the movable contact piece can not be achieved, which is relatively inconvenient in use.

SUMMARY OF THE INVENTION The present invention has been made in view of the above drawbacks, and it is an object of the present invention to provide an ultra-thin keyboard switch capable of effectively solving the problem of a conventional keyboard switch having a large thickness and inconvenient use.

In order to achieve the above object, the present invention uses the following technical solutions.

The ultrathin keyboard switch includes a base body, a fixed contact piece, a supporting piece, a moving contact piece, a heart, a saucer, and a keycap; Wherein the fixed contact piece and the support piece are separated from each other in a base body, the fixed contact piece is provided with a first welding leg and a fixed contact, the supporting piece is provided with a second welding leg, And the first weld leg extending out of the base body; One end of the movable contact piece is held in contact with and electrically connected to the supporting piece, and the movable contact is provided at the other end of the movable contact piece, the movable contact is positioned above the fixed contact; The lower end of the upper frame and the lower end of the hub are pivotally connected to both ends of the base body. The upper end of the upper frame and the upper end of the hub are pivotally connected to both ends of the lower portion of the keycap, The movable terminal is in contact with the fixed contact to be electrically connected, and when the movable terminal is in the overlapped state, the movable contact contacts the movable contact to reset the movable contact And is installed in an elastic member that moves so that the movable contact is separated from the fixed contact.

In a preferred embodiment, the Hartle and the Sottle are both U-shaped, the Hartle including a first crossbar and two first connecting rods, both ends of the first crossbar extending outwardly to have a first pivotal connecting shaft, The pivot connection shaft is pivotally connected to the key cap. The two first connection rods are parallel to each other and are integrally molded and connected to both ends of the first crossbar. The ends of the two first connection rods extend to have a second pivot connection shaft. The second pivot connection axis is pivotally connected to the base body; Wherein the top frame includes a second crossbar and two second connecting rods, both ends of the second crossbar extending outwardly to have a third pivot connection axis, the third pivot connection axis being pivotally connected to the keycap, And the fourth pivot connection shaft is pivotally connected to the base body, and the second pivot connection shaft is pivotally connected to the first pivot connection shaft and the second pivot connection shaft, The second connecting rods are correspondingly positioned inside the first connecting rods and the middle portions of the two second connecting rods are correspondingly pivotally connected to the center portions of the two first connecting rods.

Preferably, the first insertion groove is recessed in the distal end surface of the first connecting rod, the second insertion groove is recessed inside the front end of the first connecting rod, and in the overlapped state, Portion is inserted into the first insertion groove and the rear portion of the second connecting rod is inserted into the second insertion groove.

Preferably, the middle outer side of the second connecting rod extends outward to have a sixth pivot connecting shaft, and correspondingly to the first connecting rod, a pivot connecting hole is provided, and the sixth pivot connecting shaft is inserted into the pivot connecting hole, .

Preferably, the base body is provided with a first pivot connection groove and a second pivot connection recess concavely, and the second pivot connection shaft and the fourth pivot connection shaft respectively correspond to the first pivot connection groove and the second pivot connection groove, Wherein the base cover is provided with an upper cover and the upper cover positions the second pivot connection shaft and the fourth pivot connection shaft in correspondence with the first pivot connection groove and the second pivot connection groove, , The movable contact piece is positioned below the upper cover.

Preferably, a third pivot connection groove and a fourth pivot connection groove are provided at a lower portion of the key cap, and the first pivot connection shaft and the third pivot connection shaft correspond to the third pivot connection groove and the fourth pivot connection groove, respectively, It is pivotally connected to the groove.

Preferably, the elastic member is a tension spring, wherein one end of the tension spring is engaged with the upper frame, and the other end of the tension spring is engaged with the movable contact piece.

As a preferred method, the elastic material is formed as an elastic piece, integrally molded and provided on the movable contact piece, and the movable contact piece is connected to and connected to the heart.

As a preferred method, the base body is inserted into the X-shaped structure.

As a preferred method, the base body is located below the X-shaped structure.

The present invention has clear advantages and advantageous effects over the prior art, and it can be seen from the technical solution in detail.

Shaped structure so that the movable contact piece is moved so that the movable contact piece is moved in the X-shaped structure by engaging the upper frame and the harttle, and even when the finger acts on any position of the keycap, So that the movable contact piece and the movable contact piece are electrically connected to each other, so that the use of the product becomes more convenient.

1 is an assembled perspective view of a first preferred embodiment of the present invention.
2 is an exploded view of a first preferred embodiment of the present invention.
3 is an exploded view of another angle of a first preferred embodiment of the present invention.
4 is an exploded view of another angle of the first preferred embodiment of the present invention.
Figure 5 is a partial assembly view of a first preferred embodiment of the present invention.
FIG. 6 is a schematic diagram of a state in which the upper frame and the heart frame in FIG. 5 are opened.
Fig. 7 is a usage state diagram of the first preferred embodiment of the present invention. Fig.
FIG. 8 is an enlarged schematic view of a top frame and a heart of a first preferred embodiment of the present invention.
Figure 9 is a cross-sectional view of a first preferred embodiment of the present invention.
10 is a partially assembled perspective view of a second preferred embodiment of the present invention.
11 is a partially assembled perspective view of a third preferred embodiment of the present invention.

1 to 9, this is a specific structure of the first preferred embodiment of the present invention. The PCB substrate 10, the base body 20, the fixed contact piece 30, the supporting piece 40 A movable contact piece 50, a heart 60, a top frame 70, and a key cap 80. [

An LED lamp 11 is installed on the PCB substrate 10 and the base body 20 is installed on the PCB substrate 10 and one gap 21 is provided on the base body 20, The LED lamp 11 is positioned within the gap 21.

The fixed contact piece 30 and the supporting piece 40 are separated from each other in the base body 20. The movable contact piece 30 is provided with a first welding leg 31 and a fixed contact point 32, The second welding legs 41 and the first welding legs 31 are extended out of the base body 20 to be separated from the PCB substrate 10, And are electrically connected to each other.

One end of the movable contact piece 50 and the supporting piece 40 are electrically connected to each other while being held in contact with each other and the movable contact piece 51 is provided at the other end of the movable contact piece 50. The movable contact 51 is fixed And is located above the contact point 32.

The lower end of the upper leg 70 and the lower end of the upper leg 60 are pivotally connected to the opposite ends of the base body 20, 70 and the upper end of the hatch 60 are pivotally connected to both ends of the lower portion of the key cap 80 so that the upper leg 70 and the hut 60 form an X-shaped structure to move the movable contact piece 50 The movable contact 51 is brought into contact with and electrically connected to the fixed contact 32 while the movable contact 50 is in contact with the fixed contact 32 of the movable contact 50, And is mounted on an elastic member 90 for moving the movable contact 51 away from the stationary contact 32 in accordance with a reset.

Specifically, in this embodiment, the hub 60 and the hub 70 both represent a U-shape, and the hub 60 includes a first bar 61 and two first connecting rods 62, Both ends of the first arm 61 extend outwardly and have a first pivot connection shaft 63. The first pivot connection shaft 63 is pivotally connected to the key cap 80 and the two first connection rods 62 Are integrally formed and connected to both ends of the first crossbar 61. The inside ends of the two first connection rods 62 are all extended to have a second pivot connection shaft 64, The connecting shaft 64 is pivotally connected to the base body 20; The upper arm 70 includes a second arm 71 and two second connecting rods 72. Both ends of the second arm 71 extend outward to have a third pivot connection shaft 73, The three second pivot connecting shafts 73 are pivotally connected to the key caps 80. The two second connecting rods 72 are parallel to each other and formed integrally with both ends of the second cross bar 71, The second pivotal connection shaft 74 is pivotally connected to the base body 20 and the two second connection rods 72 are pivotally connected to the base body 20. [ And the middle portions of the two second connecting rods 72 are pivotally connected to the middle portions of the two first connecting rods 62 respectively in correspondence with each other. In the present embodiment, The second connecting rod 72 extends outward to have a sixth pivot connecting shaft 75 and a pivot connecting hole 65 is provided in the first connecting rod 62 correspondingly , The sixth pivot connection shaft 75 is inserted into the pivot connection hole 65 is pivotally connected.

The first insertion groove 601 is recessed in the distal end surface of the first connecting rod 62. The second insertion groove 602 is recessed inside the front end of the first connecting rod 62, , The front half portion of the second connecting rod 72 is inserted into the first insertion groove 601 and the rear half portion of the second connecting rod 72 is inserted into the second insertion groove 602 to make the product slimmer .

The base body 20 is provided with a concave cavity 22, two first pivot connection grooves 23 and two second pivot connection grooves 24 in a concave manner and the two first pivot connection grooves 23 and two The second pivot connection groove 24 is distributed at four corners of the surface of the base body 20 and the second pivot connection shaft 64 and the fourth pivot connection shaft 74 described above correspond to each other at a first pivot connection The upper cover 10 'is inserted into the groove 23 and the second pivot connection groove 24 and the base body 20 is provided with the upper cover 10' And the movable contact piece 50 is inserted into the recessed cavity 22 so as to correspond to the first pivot connection groove 23 and the second pivot connection groove 24, And is positioned below the upper cover 10 '. Locking holes 25 are provided in the base body 20 correspondingly to the lock holes 11 'in the two opposite side plates of the upper cover 10' And the lock hole 11 'are mutually locked and connected to each other so that the upper cover 10' is installed on the base body 20 and the positioning part 42 is provided on the upper end of the support piece 40, The upper cover 10 'is provided with a positioning hole 12' and the positioning portion 42 is inserted and positioned in the positioning hole 12 '. The upper cover 10' The pin 13 'is extended and the pin 13' is inserted into the PCB plate 10 and welded.

A third pivot connection groove 81 and a fourth pivot connection groove 82 are formed at a lower portion of the key cap 80. The first pivot connection shaft 63 and the third pivot connection shaft 73 are connected to each other, Are pivotally connected to the third pivot connection groove 81 and the fourth pivot connection groove 82, respectively.

The elastic member 90 is a tension spring which exposes the upper cover 10 'and both ends of the tension spring are connected to the first hook portion 91 and the second hook portion A first hooking hole 701 is formed on the second crossbar 71 of the upper frame 70 and the first hooking portion 91 is hooked on the first hooking hole 701, The movable contact piece 50 is provided with a second engagement hole 52 and the second hook portion 92 is engaged with the second engagement hole 52.

In addition, the base body 20 is inserted into the above-described X-shaped structure so that the volume of the product is further reduced.

The fixed contact piece 30 and the supporting piece 40 are respectively inserted into the corresponding positions of the base body 20 from top to bottom and then the movable contact piece 50 is placed in the concave cavity 22, The movable contact piece 50 comes into contact with the support piece 40 to keep the contact and then the upper frame 70 and the second frame 60 are pivotally connected to each other so that the second pivot connection shaft 64 and the fourth pivot The first hook portion 91 of the tension spring is inserted into the first pivot connection groove 23 and the second pivot connection groove 24 in the first pivot connection groove 24 and the first pivot connection groove 24, The second hook portion 92 of the tension spring is hooked on the second hooking hole 52 and then the upper cover 10 'is mounted on the base body 20 from top to bottom, The first pivot connection shaft 63 and the third pivot connection shaft 73 are engaged with the third pivot connection groove 81 and the fourth pivot connection groove 82 so as to correspond to each other, Connect It is necessary.

When the keycap 80 is pressed, the upper frame 70 and the hub 60 are moved downward to overlap with each other. At the same time, the elastic member 90 is pulled to move the movable contact piece 50 downward , So that the movable contact 51 is brought into contact with and electrically connected to the fixed contact 32; When the keycap 80 is loosened, the deformation of the elastic material 90 is restored and under the action of the elastic material 90, the staple 70 and the hub 60 spread out upward, At the same time, the movable contact piece 50 is also reset to cause the movable contact 51 to be disengaged from the fixed contact point 32.

As shown in FIG. 10, this shows a specific structure of the second preferred embodiment of the present invention, and the specific structure of this embodiment is basically the same as the specific structure of the above-mentioned first preferred embodiment, same.

In the present embodiment, the elastic material 90 is an elastic piece, which is integrally molded and provided on the movable contact piece 50, and the movable contact piece 50 is mounted on and connected to the heart 60.

The assembling process and the use method of the present embodiment are the same as the first preferred embodiment described above, and therefore, the assembling process and the use method of the present embodiment are not described in detail.

As shown in FIG. 11, this shows a concrete structure of a third preferred embodiment of the present invention, and the specific structure of this embodiment is basically the same as the specific structure of the aforementioned first preferred embodiment, same.

The base body 20 is positioned below the X-shaped structure, and both the upper frame 70 and the hub 60 extend out of the upper cover 10 '.

The assembling process and the use method of the present embodiment are basically the same as those of the first preferred embodiment, and the assembling process and the use method of the present embodiment are not described in detail.

The design emphasis of the present invention is as follows. The movable contact piece is moved in the X-shaped structure by connecting the upper frame and the huttle so that the movable contact piece is moved so that the existing guide column is used instead of the conventional type, Even when the finger is applied to any position of the keycap, the upper frame and the jacket are interlocked with each other to move the movable contact piece, so that the stationary contact piece and the movable contact piece are electrically connected to each other It becomes more agile and makes the use of the product more convenient.

As described above, this is a preferred embodiment of the present invention, and it is not limited to the technical scope of the present invention, and any technical modifications according to the present invention can be practically applied to any modifications, The formulas are all still within the scope of the present invention.

10: PCB board, 11: LED lamp,
20: base body, 21: gap,
22: concave cavity, 23: first pivot connection groove,
24: second pivot connection groove, 25: locking portion,
30: fixed contact piece, 31: first welding leg,
32: fixed contact, 40: supporting piece,
41: second welding leg, 42: positioning portion,
50: movable contact piece, 51: movable contact,
52: second engaging hole, 60: Hartley,
61: first arm, 62: first connecting rod,
63: first pivot connecting shaft, 64: second pivot connecting shaft,
65: pivot connection hole, 601: first insertion groove,
602: second insertion groove, 70: upper frame,
71: second arm, 72: second connecting rod,
73: third pivot connecting shaft, 74: fourth pivot connecting shaft,
75: sixth pivot connecting axis, 701: first latching hole,
80: key cap, 81: third pivot connection groove,
82: fourth pivot connection groove, 90: elastic material,
91: first hook portion, 92: second hook portion,
10 ': upper cover, 11': lock hole,
12 ': positioning hole, 13': pin.

Claims (10)

A base body, a fixed contact piece, a support piece, a movable contact piece, a heart, a saucer, and a keycap; Wherein the fixed contact piece and the support piece are separated from each other in a base body, the fixed contact piece is provided with a first welding leg and a fixed contact, the supporting piece is provided with a second welding leg, And the first weld leg extending out of the base body; One end of the movable contact piece is held in contact with and electrically connected to the supporting piece, and the movable contact is provided at the other end of the movable contact piece, the movable contact is positioned above the fixed contact; The lower end of the upper frame and the lower end of the lower frame are pivotally connected to both ends of the base body. The upper end of the upper frame and the upper end of the lower frame are pivotally connected to both ends of the lower portion of the keycap, The movable terminal is in contact with the fixed contact to be electrically connected, and when the movable terminal is in the overlapped state, the movable contact contacts the movable contact to reset the movable contact And the movable contact is moved away from the stationary contact,
Said Hartle represents a U-shape comprising a first crossbar and two first connecting rods, said top frame represents a U-shape comprising a second crossbar and two second connecting rods,
Wherein a first insertion groove is recessed in a distal end surface of the first connecting rod, a second insertion groove is recessed inside a front end of the first connecting rod, and in a superimposed state, (Front half portion) is inserted into the first insertion groove, and the rear portion of the second connecting rod is inserted into the second insertion groove.
The method according to claim 1,
Wherein the first connecting rod is pivotally connected to the key cap, the two first connecting rods being parallel to each other and integrally formed with the opposite ends of the first crossbar, Wherein an end inside of the two first connecting rods extends to have a second pivot connecting axis, the second pivot connecting axis being pivotally connected to the base body; The second pair of connecting rods being pivotally connected to the key cap, the two connecting rods being parallel to each other and each being integrally formed with the opposite ends of the second crossbar, And the second pivotal connection shaft is pivotally connected to the base body, and the two second connection rods are respectively pivotally connected to the first pivotal connection shaft and the second pivotal connection shaft, And the middle portions of the two second connecting rods are pivotally connected to the center portions of the two first connecting rods in correspondence with each other.
delete 3. The method of claim 2,
And the sixth connecting rod is extended outward to have a sixth pivot connecting shaft and correspondingly to the first connecting rod, a pivot connecting hole is provided, and the sixth pivot connecting shaft is inserted into the pivot connecting hole to be pivotally connected Ultra thin keyboard switch.
3. The method of claim 2,
The first pivot connection groove and the second pivot connection groove are recessed in the base body, and the second pivot connection shaft and the fourth pivot connection shaft are inserted into the first pivot connection groove and the second pivot connection groove, Wherein the base body is provided with an upper cover and the upper cover positions the second pivot connection shaft and the fourth pivot connection shaft in correspondence with the first pivot connection groove and the second pivot connection groove, Is positioned below the upper cover.
3. The method of claim 2,
A third pivot connection groove and a fourth pivot connection groove are provided at the bottom of the key cap, and the first pivot connection shaft and the third pivot connection shaft are engaged with the third pivot connection groove and the fourth pivot connection groove, Wherein the pivot connection is pivotally connected.
The method according to claim 1,
Wherein the elastic member is a tension spring, one end of the tension spring is engaged with the upper frame, and the other end of the tension spring is engaged with the movable contact piece.
The method according to claim 1,
Characterized in that the elastic material is an elastic piece, which is integrally molded and provided on the movable contact piece, and the movable contact piece is connected to the heart to be connected.
The method according to claim 1,
Wherein the base body is inserted into the X-shaped structure.
The method of claim 1, wherein
Wherein the base body is located below the X-shaped structure.









KR1020177001071A 2014-07-08 2015-01-21 Ultra-thin keyboard switch KR101870587B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201410322216 2014-07-08
CN201410322216.X 2014-07-08
PCT/CN2015/071178 WO2016004755A1 (en) 2014-07-08 2015-01-21 Ultra-thin keyboard switch

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Publication Number Publication Date
KR20170016982A KR20170016982A (en) 2017-02-14
KR101870587B1 true KR101870587B1 (en) 2018-06-22

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CN (2) CN104299827B (en)
WO (1) WO2016004755A1 (en)

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CN104299828B (en) 2017-10-03
CN104299827A (en) 2015-01-21
CN104299828A (en) 2015-01-21
KR20170016982A (en) 2017-02-14
WO2016004755A1 (en) 2016-01-14
CN104299827B (en) 2017-02-15

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