CN106328407B - Electronic device and its key device - Google Patents

Abstract

A kind of key device,Including a housing,Movably it is installed in a button of the housing,One first stop part that can be simultaneously moved positioned at the side of the button relative to the button,The electromagnetism part being installed in the housing,It is installed in two conducting terminals of the housing,It is installed in a conductive sheet of the button,One first elastic component and one second elastic component,The button includes an abutting part,First stop part includes one first head,When the button is pressed,The abutting part lateral compression first head,First head cross the abutting part and under the action of second elastic component block in the abutting part with prevent the button reset,The conductive sheet is electrically connected two conducting terminal,When the electromagnetism part receives a power-off signal,The direction that the electromagnetism part makes first stop part to the separate button is moved to first head and leaves the abutting part,The button resets under the action of first elastic component,The conductive sheet is detached from two conducting terminal.The invention further relates to a kind of electronic devices.

Description

Electronic device and its key device

Technical field

The present invention relates to a kind of electronic device and a kind of key devices.

Background technology

After the host shutdown of the electronic devices such as existing desktop computer, if not pulling out power cord, the desktop computer meeting It is constantly in standby mode, that is, alternating current is powered always to the desktop computer, and unnecessary electric energy can be lost in this way, cause resource Waste.

Invention content

More than in view of, it is necessary to which a kind of key device and electronic device that can prevent electric energy loss is provided.

A kind of key device, including a housing, the button that is movably installed in the housing, positioned at the side of the button simultaneously One first stop part that can be moved relative to the button, is installed in the two conductive of the housing at the electromagnetism part being installed in the housing Terminal, the conductive sheet for being installed in the button, one first elastic component and one second elastic component, the button include an abutting part, should First stop part includes one first head, and when the button is pressed, which squeezes first head, first head It is resetted under the action of second elastic component when crossing the abutting part and is stuck on the abutting part to prevent the button from resetting, it should Conductive sheet is electrically connected two conducting terminal, and when the electromagnetism part receives a power-off signal, which makes first stop part The first head leave the abutting part, which resets under the action of first elastic component, and it is two conductive which is detached from this Terminal.

A kind of electronic device, including a controller, a power supply, an electronic component and a key device, the key device packet Include a housing, the button for being movably installed in the housing, can simultaneously be moved positioned at the side of the button relative to the button one One stop part, two conducting terminals for being installed in the housing, is installed in the one of the button and leads the electromagnetism part being installed in the housing Electric piece, one first elastic component and one second elastic component, the button include an abutting part, which includes one first Portion, when the button is pressed, which squeezes first head, first head when crossing the abutting part this It is resetted under the action of two elastic components and is stuck on the abutting part to prevent the button from resetting, which is electrically connected two conduction Terminal, when the electromagnetism part receives a power-off signal, which makes the first head of first stop part leave the abutting part, The button resets under the action of first elastic component, which is detached from two conducting terminal, and wherein the one of the key device Conducting terminal is electrically connected at the power supply by a cable, and another conducting terminal of the key device is electrically connected by a cable In the electronic component, which is electrically connected at the controller by cable, which can launch the power-off signal.

When the electromagnetism part receives a power-off signal, which makes first stop part be moved to the direction far from the button It moves to first head and leaves the abutting part, which resets under the action of first elastic component, so as to drive the conductive sheet Two conducting terminal is detached from, realizes fully powered-off, reduces electric energy loss.

Description of the drawings

Fig. 1 is the block diagram of a better embodiment of an electronic device, which includes a key device, a control Device processed, a power supply and an electronic component.

Fig. 2 is the three-dimensional exploded view of key device in Fig. 1.

Fig. 3 is the three-dimensional view at another visual angle of Fig. 2.

Fig. 4 is the three-dimensional assembly diagram of Fig. 2.

Fig. 5 is sectional views of the Fig. 4 along IV-IV lines.

Fig. 6 is the three-dimensional assembly diagram of the subelement in Fig. 2, and wherein the key device is in a first state.

Fig. 7 is the stereogram similar to Fig. 6, and wherein the key device is in one second state.

Fig. 8 is the stereogram that Fig. 6 saves subelement.

Fig. 9 is the stereogram similar to Fig. 8, and wherein the key device is in a third state.

Main element symbol description

Controller	1
		Key device	2
Power supply	3
		Electronic component	4
Housing	10
		First frame	11
First substrate	110
		Side plate	112、212
Clamping part	1120
		First bottom plate	113
First bending part	1130
		First fixinig plate	1133
First container	1134
		Supporting spring	1135
First fluting	114
		Fixed plate	115
Perforation	1150
		Boss	116、216
Slide plate	1160
		Guide runner	1162、2162
Slideway	1164
		First connecting plate	119
Lid	13
		First cover board	130
Second cover board	132
		Perforation	136
Second frame	21
		Second substrate	210
Buckle	2120
		Second bottom plate	213
Second bending part	2130
		Second fixinig plate	2133
Second container	2134
		Opening	2135
Second fluting	214
		Fixed column	217
Second connecting plate	218
		End plate	219
Fixed lobe	2190
		Button	20
Abutting part	22
		Blocking surface	220
Bearing surface	222
		Holding section	24
Accepting hole	240
		Groove	25
Locating slot	26
		Traveller	28
Electromagnetism part	30
		Mounting bracket	31
Wire connection terminal	32
		Coil	33
Straight slot	35
		First stop part	40
First head	41
		First slide guide face	410
First axle	43
		First lug	45
Connecting hole	451、551、826
		Second stop part	50
Second head	51
		Second slide guide face	510
Second axis	53
		Second lug	55
Conducting terminal	60
		Locating plate	61
First electrical connection section	610
		Holding division	612
Bent sheet	63
		Wiring pin	630
Conductive sheet	70
		Body sheet	71
Wears groove	710
		Extendible flake	73
Second electrical connection section	730
		Connector	80
Head rod	82
		Through-hole	825
Connecting pole	827
		Second connecting rod	83
Connecting portion	831
		First elastic component	97
Second elastic component	98
		Third elastic component	99

Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.

Specific embodiment

Referring to Fig. 1, the present invention a better embodiment, an electronic device include a controller 1, a key device 2, One power supply 3 and an electronic component 4.The power supply 3 is connected to external alternating current and passes through the key device 2 and powers to the electronic component 4, The controller 1 is powered by controlling the key device 2 that can close the power supply 3 to the electronic component 4.In one embodiment, should Electronic component 4 is a mainboard.

Fig. 2 and Fig. 3 is please referred to, which includes a housing 10, a button 20, an electromagnetism part 30, one first block Part 40, one second stop part 50, two conducting terminals 60, a conductive sheet 70, a connection piece 80, one first elastic component 97, one second 98 and one third elastic component 99 of elastic component.First elastic component 97, the second elastic component 98 and third elastic component 99 can be spirals Spring or other elastic elements that can realize identical function.

The housing 10 includes one first frame 11, one second frame 21 and a lid 13.

First frame 11 includes the first substrate 110 with a first end and a second end, from 110 phase of first substrate To the both side plate 112 that extends vertically upwards out of both sides, compartment of terrain be set on the first substrate 110 first end bottom one the One bottom plate 113 and first bottom plate 113 is connected to adjacent to the side of the second end of the first substrate 110 and the first substrate 110 Between the first connecting plate 119.The middle part of the first end of the first substrate 110 is equipped with semicircular first fluting 114.This One substrate 110 is equipped with the fixed plate 115 at two intervals being connected between the both side plate 112 in it at second end.It is each solid A perforation 1150 is opened up on the upside of the middle part of fixed board 115.Upward one boss 116 of projection in middle part of the first substrate 110.The boss 116 one end connection wherein fixed plate 115.The upper surface of the boss 116 is equipped with the slide plate 1160 of two L-types side by side, and The upper surface of the boss 116 opens up the guide runner 1162 of the perforation 1150 of a face two fixed plate 115.Each slide plate 1160 Slideway 1164 of the opening towards the first end of the first substrate 110 is formed between the upper surface of the boss 116.Per side plate 112 are convexly equipped with a clamping part 1120 at the first end of the neighbouring first substrate 110.First bottom plate, 113 face, first base It sink to form one first bending part 1130 at first fluting 114 of plate 110.The inner surface projection one of first bending part 1130 is just To the first fixinig plate 1133 of the first fluting 114.First bottom plate 113 is in the side of the first end of the neighbouring first substrate 110 Two supporting spring 1135 of both ends projection.First bottom plate 113 is equipped with the first container of an inverted T-shaped in the top of each supporting spring 1135 1134。

Second frame 21 includes the second substrate 210 with a first end and a second end, from 210 phase of second substrate To the both side plate 212 that extends vertically upwards out of both sides, compartment of terrain be set on the second substrate 210 first end bottom one the Two bottom plates 213, be connected to second bottom plate 213 adjacent to the side of the second end of the second substrate 210 and the second substrate 210 it Between one second connecting plate 218 and the second end from the second substrate 210 extend vertically upwards and be connected to the both side plate 212 it Between end plate 219.The second substrate 210 opens up semicircular second fluting 214 in the middle part of its first end.Second base Plate 210 is in upward one boss 216 of projection of its second end and two fixed columns 217 positioned at 216 both sides of boss.The boss 216 One end is connected to the end plate 219.The guide runner 2162 of an arc is offered in the middle part of the upper surface of the boss 216.The end plate 219 Side projection one is located at the fixed lobe 2190 of 2162 top of guide runner in the inner.Per side plate 212 in its adjacent to this second The first end of substrate 210 is equipped with a buckle 2120.At second fluting 214 of 213 face of the second bottom plate second substrate 210 It sink and forms one second bending part 2130, and second bottom plate 213 is in the side of its first end adjacent to the second substrate 210 Both ends open up an opening 2135 respectively.The second of one face second of the inner surface projection fluting 214 of second bending part 2130 is solid Stator 2133.Second bottom plate 213 is equipped with the second container 2134 of an inverted T-shaped in the top of each opening 2135.It is each to open Corresponding second container 2134 of 2135 connection of mouth.

The lid 13, which includes first cover board 130 and one that can be placed on first frame 11, can be placed on the second of second frame 21 Cover board 132.The middle part of first cover board 130 and the junction of second cover board 132 is equipped with a perforation 136.

The button 20 includes a traveller 28.The surrounding of the traveller 28 in its bottom surface is downwardly convex to be equipped with several elastic engaging portions 24.The lateral surface of these holding sections 24 surrounds cone.A groove 25 is formed between every two adjacent holding sections 24.These engagings Portion 24 and the bottom surface of the traveller 28 surround a positioning groove 26.The abutting part 22 and the diameter of these holding sections 24 successively decrease downward.This The medial surface of a little holding sections 24 surround one along the traveller 28 the accepting hole 240 for axially extending to 28 bottom of traveller.The traveller 28 Middle part along 28 peripheral surface projection of traveller, one abutting part 22.The abutting part 22 includes a blocking towards the top of the traveller 28 Face 220 and one is connected to the blocking surface 220 and the bearing surface 222 of the bottom angled towards the button 20.

The electromagnetism part 30 includes a mounting bracket 31, the coil 33 being sheathed on the mounting bracket 31 and is fixed on first frame Two wire connection terminals 32 on 11 first substrate 110 and between two fixed plate 115.The mounting bracket 31 is offered to run through and is somebody's turn to do The straight slot 35 at 33 center of coil.The coil 33 includes both ends that are opposite and being connected to two wire connection terminal 32.

First stop part 40 includes first head 41 made of ferrimagnet, from the one end on first head 41 Two first lugs 45 that the first axle 43 extended and the both sides opposite from first head 41 vertically extend.This first The other end of 41 face of the portion first axle 43 is equipped with an inclined the one the first slide guide face 410.The end of each first lug 45 Open up a connecting hole 451.

One second axis 53 that second stop part 50 includes one second head 51, extends from the one end on second head 51 And two second lugs 55 that opposite both sides vertically extend from second head 51.Second head, 51 face, second axis 53 The other end be equipped with an inclined second slide guide face 510.The end of every one second lug 55 opens up a connecting hole 551.

Each conducting terminal 60 includes a locating plate 61 and makes the bending that one end of bit slice 61 is extended vertically downward by oneself Piece 63.The locating plate 61 extends outward two holding divisions 612 in its opposite both sides at the bent sheet 63.The locating plate 61 One first electrical connection section 610 of middle part projection in its top surface.The bent sheet 63 is equipped with one in its one end far from the locating plate 61 Wiring pin 630.

The conductive sheet 70 includes a body sheet 71 and two extensions extended from the middle part of the opposite both sides of the body sheet 71 Piece 73.The body sheet 71 is equipped with a wears groove 710 in its middle part.The diameter of the wears groove 710 is less than the diameter of the traveller 28.It is each to prolong Stretch downward one second electrical connection section 730 of projection in end of piece 73（Please refer to Fig. 5 and Fig. 8）.

The connector 80 includes 82 and two second connecting rod 83 of head rod of two V-types.Each head rod 82 Middle part is equipped with a through-hole 825, and one end of the head rod 82 opens up a connecting hole 826, opposite another of the head rod 82 The downwardly convex connecting pole 827 in one end.The opposite both ends of every one second connecting rod 83 extend downwardly a connecting portion 831.

Also referring to Fig. 3 to Fig. 6, during assembling, by the electromagnetism part 30 be installed in first frame 11 two fixed plates 115 it Between, the both ends of the coil 33 of the electromagnetism part 30 is made to be connected to two wire connection terminal 32, and the straight slot 35 of the electromagnetism part 30 is just Perforation 1150 to two fixed plate 115.The end of the first axle 43 of first stop part 40 is passed through into second elastic component 98, and First stop part 40 is positioned on the boss 116 of first frame 11 so that the first slide guide face 410 is facing away from the first substrate 110, the perforation 1150 of the end face of the first axle 43 two fixed plate 115, and second elastic component 98 is contained in the slide guide In slot 1162.The guide runner 1162 of the first axle 43 of first stop part 40 along first frame 11 is slidably passed through into first frame 11 perforation 1150 of two fixed plates 115 and the mounting bracket 31 of the electromagnetism part 30, and make the two first convex of first stop part 40 Ear 45 is slidably contained in respectively in two slideways 1164 of first frame 11.Second elastic component 98 is sheathed on the first axle 43, First head 41 of the end thereof contacts of second elastic component 98 first stop part 40, another end in contact of second elastic component 98 Close to a fixed plate 115 of first substrate 110 in two fixed plate 115.

One end of the third elastic component 99 is sheathed on the second axis 53 of second stop part 50 and abuts second head 51.Second stop part 50 is positioned on the boss 216 of second frame 21, third elastic component 99 is made to be contained in the guide runner In 2162, and the second slide guide face 510 is facing away from the second substrate 210.By the other end of the third elastic component 99 be sheathed on this The fixed lobe 2190 of two frames 21 and the end plate 219 for abutting second frame 21.

The locating plate 61 of each conducting terminal 60 is installed in corresponding first receipts on the first bottom plate 113 of first frame 11 In tank 1134 so that two parts of the holding division 612 far from the bent sheet 63 of the conducting terminal 60 are fastened in first receiving The two side of slot 1134, and the bent sheet 63 of the conducting terminal 60 supports corresponding supporting spring 1135.The of each conducting terminal 60 One partial receipt of the electrical connection section 610 far from the bent sheet 63 is simultaneously exposed to corresponding first container 1134.Each conducting end The wiring pin 630 of son 60 stretches out first bottom plate 113.

The conductive sheet 70 is contained in first frame 11, two second electrical connection sections 730 of the conductive sheet 70 is abutted and is somebody's turn to do Two first electrical connection sections 610 of two conducting terminals 60.At this point, the first of 710 face of wears groove of the conductive sheet 70, first frame 11 Fluting 114.First frame 11 is kept into horizontality, to prevent the conductive sheet 70 from being fallen from two conducting terminal 60.

The both side plate 112 of first frame 11 is aligned, and the first of first frame 11 with the both side plate 212 of second frame 21 Bottom plate 113 is aligned with the second bottom plate 213 of second frame 21.It is first frame 11 and the second frame 21 is close to each other so that this The buckle 2120 of the both side plate 212 of two frames 21 buckles into the clamping part 1120 of the both side plate 112 of first frame 11.First bottom plate 113 the first fixinig plate 1133 is to the second fixinig plate 2133 of just second bottom plate 213.The locating plate 61 of each conducting terminal 60 One end of close bent sheet 63 be contained in corresponding second container 2134 of second frame 21.The two of each conducting terminal 60 Holding division 612 is fastened close to the part of bent sheet 63 in the two side of corresponding second container 2134.Each conducting terminal 60 The first electrical connection section 610 close to bent sheet 63 partial receipt and be exposed to corresponding second container 2134.First frame 11 supporting spring 1135 is contained in the opening 2135 of second frame 21.The wiring pin 630 of two conducting terminal 60 from this two opening 2135 stretch out.

The first fluting 114 of first frame 11 and the second of second frame 21 is passed through to open one end of first elastic component 97 The wears groove 710 of slot 214 and the conductive sheet 70, and it is sheathed on 1133 and second fixinig plate 2133 of the first fixinig plate.By the button 20 holding section 24 passes through the first fluting 114 of first frame 11 and the second fluting 214 of second frame 21 so that first bullet The other end of property part 97 is contained in the accepting hole 240 of the holding section 24 of the button 20.By the through-hole 825 of each head rod 82 The corresponding fixed column 217 of the second substrate 210 is pivotally mounted to, and pivots the connecting pole 827 of the head rod 82 Ground is connected in the connecting hole 551 of the second lug 55 of homonymy.Two connecting portions 831 of every a connection piece 80 are pivotally filled respectively In the connecting hole 451 of the first lug 45 of homonymy and the connecting hole 826 of head rod 82.Towards the direction of the conductive sheet 70 The traveller 28 of the button 20 is pressed, the bearing surface 222 of the button 20 slidably pushes the first slide guide face of first stop part 40 410 and the second slide guide face 510 of second stop part 50, make first stop part 40 and second stop part 50 towards far from should be by The direction of key 20 is slided, first elastic component 97, second elastic component 98 and 99 flexible deformation of third elastic component.The button 20 Holding section 24 be inserted into the wears groove 710 of the conductive sheet 70, the medial surface of the wears groove 710 slidably squeeze holding section 24 make it is each 24 flexible deformation of holding section is moved towards corresponding groove 25, i.e., these holding sections 24 are towards contract, after the wears groove 710 Restore elastic deformation, so that the conductive sheet 70 is caught in the locating slot 26 of the button 20, i.e., the conductive sheet 70 is held on the cunning Between the bottom surface of column 28 and holding section 24.At this point, first stop part 40 the first head 41 and second stop part 50 The abutting part 22 of the button 20 is crossed on two heads 51, and second elastic component 98 and the third elastic component 99 restore elastic deformation, make First head, 41 and second head, 51 block fixes the button 20 in the blocking surface 220 of the abutting part 22, the conductive sheet 70 Two second electrical connection sections 730 abut two conducting terminal 60 the first electrical connection section 610.

Towards 40 and second stop part 50 of the first stop part is moved far from 20 direction of button, make first head 41 and the Two heads 51 are detached from the clamping with the blocking surface 220 of the abutting part 22, which restores elastic deformation and push this Button 20 is slided towards far from conducting terminal 60, and the button 20 drives the conductive sheet 70 to be moved to block in the first substrate 110 And the bottom surface of the second substrate 210, two second electrical connection section 730 are detached from two first electrical connection section 610.By first cover board 130 lid be bonded to first frame 11 112 and two fixed plate 115 of both side plate top, by second cover board 132 lid be bonded to this second The top of the end plate 219 of frame 21, makes the button 20 pass through the perforation 136 of the lid 13, and the abutting part 22 of the button 20 is contained in Between first frame 11, second frame 21 and the lid 13.

In use, the wiring pin 630 of a wherein conducting terminal 60 for the key device is electrically connected at this by a cable Power supply 3, the wiring pin 630 of another conducting terminal 60 of the key device are electrically connected at the electricity of the electronic device by a cable Subcomponent 4.Two wire connection terminals 32 of the electromagnetism part 30 are electrically connected at the controller 1 by cable.

Fig. 5 and Fig. 9 is please referred to, when needing to power to the electronic component 4, pushes button 20 traveller 28, first bullet Property 97 flexible deformation of part.The bearing surface 222 of the abutting part 22 of the button 20 slidably pushes against first of first stop part 40 The first slide guide face 410 in portion 41 and the second slide guide face 510 on the second head 51 of second stop part 50, first head 41 and Second head 51 is slided towards the direction far from the button 20, second elastic component 98 and 99 flexible deformation of third elastic component. Two first lugs 45 of first stop part 40 drive two second connecting rod 83 to be moved towards the direction far from the button 20, this Two second lugs 55 of two stop parts 50 drive two head rod 82 to be rotated around two fixed columns 217 of second frame 21.When The bearing surface 222 crosses the first slide guide face 410 and the second slide guide face 510, second elastic component 98 and the third elastic component 99 recovery elastic deformations first head 41 and second head 51 are slided towards button 20 so that first head 41 and should Second head, 51 block is in the blocking surface 220 of the abutting part 22.At this point, two second electrical connection sections 730 of the conductive sheet 70 are electrically It is connected to the first electrical connection section 610 of two conducting terminal 60.

Fig. 7 to Fig. 9 is please referred to, when needing to power off the electronic component 4, which launches one to electromagnetism part 30 Power-off signal, the electromagnetism part 30 generate electromagnetic force after receiving the power-off signal.First head 41 of first stop part 40 is in electricity It is slided under the action of magnetic force towards the direction far from the traveller 28 so that 98 flexible deformation of the second elastic component.First stop part 40 two first lugs 45 drive two second connecting rod 83 to be moved along the glide direction on first head 41, two second connection Bar 83 drives two head rod 82 to be rotated around two fixed columns 217 of second frame 21, so as to drive second stop part 50 The second head 51 towards far from the traveller 28 direction slide, 99 flexible deformation of third elastic component, until first stop part 40 The first head 41 and second stop part 50 the second head 51 be detached from the button 20 abutting part 22 blocking surface 220.It should First elastic component 97 restores elastic deformation, which restores the position to before being pressed, and the two second of the conductive sheet 70 is electrically connected Socket part 730 is detached from the first electrical connection section 610 of two conducting terminal 60, which stops powering to the electronic component 4.Power-off Afterwards, which no longer generates electromagnetic force, which restores elastic deformation and first head 41 is pressed towards this 20 direction of key is slided, and two first lugs 45 of first stop part 40 drive two second connecting rod 83 to be moved towards 20 direction of button Dynamic, which drives two head rod 82 to be rotated around two fixed columns 217 of second frame 21, so as to drive It is moved towards the button 20 on second head 51 of second stop part 50 so that first head 41 and second head 51 contact should The bearing surface 222 of abutting part 22.

In one embodiment, one end of first elastic component 97 can only be sheathed on the first of first bottom plate 113 and fix Second fixinig plate of piece or second bottom plate 213.

In another embodiment, the middle part of each head rod 82 is pivotably secured to the first substrate 110, each One end of head rod 82 is connected pivotally to the first lug 45 of homonymy, and the other end of each head rod 82 is pivotally One end of corresponding second connecting rod 83 is connected to, the other end of every one second connecting rod 83 is connected pivotally to the second of homonymy Lug 55.

In yet another embodiment, each head rod 82 can C-shaped or bar shaped.

Claims (10)

1. a kind of key device, it is characterised in that：The key device include a housing, be movably installed in the one of the housing by Key, positioned at the side of the button simultaneously can relative to the button move one first stop part, be installed in the housing an electromagnetism part, Two conducting terminals for being installed in the housing, the conductive sheet, one first elastic component and one second elastic component that are installed in the button, should Button includes an abutting part, which includes one first head, and when the button is pressed, which squeezes should First head, first head reset under the action of second elastic component when crossing the abutting part and are stuck on the abutting part To prevent the button from resetting, which is electrically connected two conducting terminal, when the electromagnetism part receives a power-off signal, the electricity Magnetic part makes the first head of first stop part leave the abutting part, which resets under the action of first elastic component, should Conductive sheet is detached from two conducting terminal；The key device further includes one second stop part and a connection piece, the second stop part position It can simultaneously be moved in the side far from first stop part of the button relative to the button, which is connected to first stop part And second between stop part, second stop part include one can block in the second head of the blocking surface of the abutting part, when this When the direction of one head towards the separate button is moved, which drives second stop part to be somebody's turn to do to separate by the connector Button direction moves.

2. key device as described in claim 1, it is characterised in that：The abutting part squeezes first head including one for side Bearing surface and one can block first head blocking surface.

3. key device as claimed in claim 2, it is characterised in that：The connector is pivotally installed in the housing.

4. key device as claimed in claim 3, it is characterised in that：The housing includes one first frame and one second frame, this One frame includes the first substrate with opposite a first end and a second end, which includes having opposite one first End and a second substrate of a second end, the first end of the first substrate are connected to the first end of the second substrate, the first gear Stop member is movably installed in the second end of the first substrate, which is movably installed in the second of the second substrate End, second elastic component are installed between first frame and first head, which is pivotally mounted to the first substrate And at least one of second substrate, the electromagnetism part are installed on the first substrate or second substrate.

5. key device as claimed in claim 4, it is characterised in that：First stop part further includes one from first head Hold the first axle extended, which is equipped with two fixed plates in it at second end, the electromagnetism part be installed on this two Between fixed plate, which stretches out two fixed plate and the electromagnetism part, which is sheathed on the first axle, this second Elastic component is connected in first head and two fixed plate between a fixed plate of the first end far from the substrate.

6. key device as claimed in claim 4, it is characterised in that：First stop part further includes opposite from first head Two first lugs extended of both sides, which further includes two that the both sides opposite from second head are extended Two lugs, which includes two head rods and two second connecting rods, the middle part of each head rod are pivotally installed In the second substrate, one end of each head rod is connected pivotally to the second lug of homonymy, each head rod The other end is connected pivotally to one end of corresponding second connecting rod, and the other end of every one second connecting rod is connected pivotally to together The first lug of side.

7. key device as claimed in claim 6, it is characterised in that：The upward projection one in middle part of the first substrate can support should The boss on the first head, the boss are equipped with two slide plates, a slideway are formed between each slide plate and the boss, this two first Lug is slidably supported at two slideway.

8. key device as claimed in claim 4, it is characterised in that：The key device further includes a third elastic component, this Two stop parts further include one second axis extended from the one end on second head, which further includes from the second substrate The end plate that second end vertically extends, one end of the third elastic component are sheathed on second axis and abut second head, should The other end of third elastic component abuts the end plate.

9. a kind of electronic device, including a controller, a power supply, an electronic component and key device as described in claim 1, A wherein conducting terminal for the key device is electrically connected at the power supply, another conducting terminal of the key device by a cable The electronic component is electrically connected at by a cable, which is electrically connected at the controller by cable, the controller energy Launch the power-off signal.

10. electronic device as claimed in claim 9, it is characterised in that：The connector is pivotally installed in the housing.