CN202268276U

CN202268276U - Button device

Info

Publication number: CN202268276U
Application number: CN2011203900032U
Authority: CN
Inventors: 李宗仕
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2011-10-07
Filing date: 2011-10-07
Publication date: 2012-06-06
Anticipated expiration: 2021-10-07

Abstract

The present utility model discloses a button device which comprises a button body and a circuit board. The button body comprises a first surface for pressing and operating, and a pedestal which is arranged on the left side edge of the button body and extended downward from the first surface, and the circuit is provided with an electronic switch for mechanically contacting with the pedestal of the button body. The button device is characterized in that the middle part and the right side edge of the button body are respectively provided with a hole groove, each hole groove is extended downward along a direction which is vertical with the first surface, and each hole groove is provided with an elastic piece inside. Through the button device, mechanical equilibrium can be realized by corresponding counteracting forces generated by various bearing positions of the button body and active forces, handfeel operation of users can be increased, and the button body can be prevented from inclining.

Description

Key device

Technical field

The utility model relates to a kind of key device, the key device that can the maintenance level during especially about a kind of the operation moves down.

Background technology

See also shown in Figure 1ly, Fig. 1 is a kind of key device 98, comprises a key body 20 and a circuit board 19, and said circuit board 19 more comprises an electronic switch 10.The left side of said key body 20 below is convexly equipped with a base 31, is used for mechanicalness and contacts said electronic switch 10, but because the relation of electronic component configuration, and said electronic switch 10 is said circuit board 19 left side upper limbs of deflection and being provided with.Please further consult shown in Fig. 2 a; When the user implements an active force 15 in the left position of an arc press surface 21 of key body 20 tops with finger; Because said active force is to concentrate on said key body 20 left sides, can make said key body 20 move down and directly contact with said electronic switch 10, said electronic switch 10 provides a reaction force and said active force 15 to reach the balance of strength relatively; Therefore, said key body 20 integral body can the maintenance levels and are moved down.The square frame 18 of its effect shown in Fig. 2 b, representing said key body 20 is maintenance level and nonangular when its longitudinally moves down.Other sees also Fig. 3 a; Be to show when another active force 15 of finger execution during in the centre position of key body 20 arc press surfaces 21; Because said key body 20 left sides receive the feedback of a reaction force earlier with electronic switch 10 contacts; But simultaneously said key body 20 the right or centre position do not have the payment of any anticaustic power, thus said active force 15 and reaction force between can't reach the balance of strength and produce the clockwise rotation phenomenon of lever principle, so key body 20 integral body can't the maintenance level and move down; The square frame 18 of its effect shown in Fig. 3 b, representing key body 20 integral body is to be tilted to the right along its longitudinally.Seeing also Fig. 4 a shows; When finger is implemented another active force 15 in the location right of key body 20 arc press surfaces 21; Same, because said key body 20 left sides receive the feedback of a reaction force earlier with electronic switch 10 contacts, but while said key body 20 the right do not have the payment of any anticaustic power; So that can't reach the balance of strength between said active force 15 and the reaction force and produce the clockwise rotation phenomenon of lever principle; Therefore what key body 20 integral body can't the maintenance level moves down, the square frame 18 of its effect shown in Fig. 4 b, and representing said key body 20 integral body is to be tilted to the right along its longitudinally.

The utility model content

The utility model purpose is to overcome the deficiency of above-mentioned prior art, can guarantee the key device that level moves down when a kind of the operation is provided.

For reaching above-mentioned purpose, the utility model provides a kind of key device, comprises a key body and a circuit board.It is that to supply pressing operation, a second surface be corresponding said first surface that the key body has a first surface, and a base is positioned at a wherein side of said key body and from said first surface towards said second surface to extending below; Circuit board has an electronic switch, is used for the base that mechanicalness contacts said key body; Offer a hole slot on the centre position of said key body and another side, said each hole slot is formed on the said second surface and along direction extension and said each hole slot inside perpendicular to said first surface and respectively is equiped with an elastic component.

Described key device further comprises a vertical wall, be periphery from said first surface to extending below, the first surface of said key body and said vertical wall define a hollow cavity jointly, and said second surface and hole slot are to be formed in the said hollow cavity.

Elastic component can be spring or bourdon tube or reed etc.

The spring of the hole slot of position in the middle of said key body is shorter in length than the spring length of position at the hole slot of another side of said key body.

As stated; Design according to the key device of the utility model; When the user applies any position of an active force on said key body; Can make the stressed position of each of key body produce corresponding reaction force and reach mechanical balance with said active force, thus the problem that causes the key body to tilt when avoiding the pressing key body.

Description of drawings

Fig. 1 is the structural representation of existing key device.

Fig. 2 a is characterized in that for the structural representation of existing key device the press surface left side of display key body is stressed.

Fig. 2 b is the stressed sketch map in the left side of the press surface of existing key device.

Fig. 3 a is the structural representation of existing key device, it is characterized in that the press surface of display key body is middle stressed.

Fig. 3 b is the stressed sketch map in centre of the press surface of existing key device.

Fig. 4 a is the structural representation of existing key device, it is characterized in that press surface the right of display key body is stressed.

Fig. 4 b is the stressed sketch map in the right of the press surface of existing key device.

Fig. 5 is the structural representation according to the key device of the utility model, it is characterized in that the situation that said key body maintenance level moves down.

Fig. 6 is according to stressed sketch map in the middle of the press surface of Fig. 5 key device.

Embodiment

By the technology contents, the structural feature that specify the utility model, reached purpose and effect, below now for example and cooperate graphic knowing clearly to give explanation.Be noted that at this identical element numbers was the same or analogous assembly of expression during difference was graphic.Below the face direction of mentioned annexed drawings be defined as normal vector perpendicular to said plane, be in order to explanation and understand the utility model at the direction term of this use, but not in order to restriction the utility model.

See also Fig. 5, Fig. 5 is the key device 100 of the utility model, comprises a key body 120 and a circuit board 119.

Said key body 120 has a first surface 121, a second surface 122, a vertical wall 123 and a base 131.

Said first surface 121 is press surfaces of an arc, for user's pressing operation.

Said second surface 122 is to form two hole slots 130,135 on corresponding said first surface 121 and its; Two hole slots 130,135 are opened in the centre and the location right of said key body 120 respectively; The cell wall of said each hole slot 130,135 is respectively to be equiped with a spring 140,145 along direction extension and said each hole slot 130,135 inside perpendicular to said first surface 121; Make the said corresponding hole slot of an end butt 130,135 inside of said each spring 140,145; The other end is then towards circuit board 119 extensions or as being fixed on the corresponding fixture 124,126 on the circuit board 119; But it is characterized in that the position is shorter in length than spring 145 length of position at the hole slot 135 of said key body 120 location right at the spring 140 of the hole slot 130 in said key body 120 centre positions, to cooperate integrally-built running.Only, it should be noted at this that though in present embodiment, installing is spring 140,145 in the hole slot 130,135, not as limit, any elastic component such as bourdon tube or reed etc. that have with the spring equivalence all are contained in the utility model.

Said vertical wall 123; Be that periphery from said first surface 121 extends to form towards second surface 122 downwards; Define a hollow cavity 1232 through said first surface 121 jointly with said vertical wall 123, it is characterized in that said second surface 122 and hole slot 130,135 thereof promptly are formed in the said hollow cavity 1232.

Said base 131 is positioned at one of them of said key body 120 dual-sides, and also is to extending below but its development length is a development length of being longer than said vertical wall 123 from said first surface 121 towards said second surface 122.In present embodiment,, therefore do not limit the position of said base 131 though said base 131 is positioned at the left side of said key body 120.

Said circuit board 119 has an electronic switch 110, is used for base 131 that mechanicalness contacts said key body 120 to switch the particular electrical circuit on the said circuit board 119.Because the said base 131 of the utility model is positioned at the left side of said key body 120, and the lay down location of electronic switch 110 is with respect to base 131, and therefore said electronic switch 110 also is positioned over the operation of the upper left side of circuit board 119 in order to said key device 100.

See also Fig. 6, the mechanics equivalent action figure for according to 100 operations of the key device of the utility model the time.As shown in Figure 6, a cross bar is represented above-mentioned key body 120, and the triangle that is positioned at the said cross bar left side is represented said base 131; When user's finger imposes an active force 115 in said key body 120 tops; Can make said base 131 stressed moving down contact said electronic switch 110 up to mechanicalness; And the reaction force F 1 that makes progress is provided by said electronic switch 110, be back to the left position of said key body 120 belows through said base 131; Simultaneously; The centre of said key body 120 belows and the spring on the location right 140,145 also can move and pressurized towards the direction of the fixture 124,126 of circuit board 119, and then make compression spring 140,145 produce reaction force (being bounce) F2 from lower to upper, centre and the location right that F3 is back to said key body 120 belows respectively.According to mechanics principle, F1+F2+F3=active force 115, reaching the balance of mechanics, therefore said key body 120 integral body height such as all still can keep to do level decline and the problem of inclination can not occur having like prior art.

In fact; Notion according to the key device 100 of the utility model; No matter user's finger imposes any position of active force 115 on said key body 120 (first surface 121); And do not limit the left side, the right or the centre position of the first surface 121 of key body 120 as shown in Figure 5, and can make each stressed position of key body 120 produce corresponding reaction force and reach mechanical balance with said active force, not only can increase user's feel operation and the problem that can avoid the key body to tilt fully.

Though the utility model discloses as above with preferred embodiment; Right its is not in order to limit the utility model; Has common knowledge the knowledgeable in the technical field under the utility model, in spirit that does not break away from the utility model and scope, when doing various changes and retouching.Therefore the protection range of the utility model is as the criterion when looking the accompanying Claim person of defining.

Claims

1. key device comprises:

One key body has a first surface and is that to supply pressing operation, a second surface be corresponding said first surface, and a base is positioned at a wherein side of said key body and from said first surface towards said second surface to extending below; And

One circuit board has an electronic switch, is used for the base that mechanicalness contacts said key body;

It is characterized in that, offer a hole slot on the centre position of said key body and another side, said each hole slot is formed on the said second surface and along direction extension and said each hole slot inside perpendicular to said first surface and respectively is equiped with an elastic component.

2. key device according to claim 1; It is characterized in that; Further comprise a vertical wall; Be periphery from said first surface to extending below, the first surface of said key body and said vertical wall define a hollow cavity jointly, and said second surface and hole slot are to be formed in the said hollow cavity.

3. key device according to claim 1 is characterized in that said elastic component can be spring or bourdon tube or reed etc.

4. key device according to claim 3 is characterized in that, the spring of the hole slot of position in the middle of said key body is shorter in length than the spring length of position at the hole slot of another side of said key body.