BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the present invention, and wherein:
FIG. 1A is a schematic stereogram of a dome switch according to the prior art.
FIG. 1B is a schematic stereogram of a rubber switch according to the prior art.
FIG. 2A is a schematic exploded view of the first embodiment of the present invention.
FIG. 2B is a schematic stereogram of the first embodiment of the present invention.
FIG. 3A is a schematic exploded view of the second embodiment of the present invention.
FIG. 3B is a schematic stereogram of the second embodiment of the present invention.
FIG. 4A is a schematic exploded view of the combining aspect of the control member and the contact member of the present invention.
FIG. 4B is a schematic combined view of the combining aspect of the control member and the contact member of the present invention.
FIG. 5A is a schematic exploded view of the combining aspect of the control member and the contact member of the present invention.
FIG. 5B is a schematic combined view of the combining aspect of the control member and the contact member of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
To make the object, structure, features, and functions of the present invention more comprehensible, the present invention is illustrated in detail below with reference to the embodiments.
FIG. 2A to FIG.3B are schematic stereograms of the first embodiment and the second embodiment of the present invention. As shown in the figures, the key structure 100 disclosed in the present invention is disposed on a circuit board 300 that having at least one contact 310. The key structure 100 includes a plurality of contact members 110 and a control member 120. Each of the contact members 110 has an elastic portion 111 and a fixed portion 112, and the control member 120 has a pressing portion 121 and a combining portion 122, wherein the combining portion 122 is combined in the fixed portion 112 such that the control member 120 and the contact members 110 are combined with each other. Through the elastic feature of the contact member 110, the control member 120 has a release position where it is normally spaced at a fixed interval with an electric contact 310, and has a contact position where it is in electrical contact with the electric contact 310. The control member 120 is made of a plastic material, and the pressing portion 121 is an arched structure to facilitate the user's pressing on the control member 120. The combining portion 122 extends from one end of the pressing portion 121 and forms a pin structure, and is combined in the fixed portion 112 of the contact member 110, so as to be in electrical contact with the electric contact 310.
As shown in FIG. 2A and FIG. 2B, the first embodiment of the present invention discloses the implementation of a dome switch. As shown in the figures, the elastic portion 111 of the contact member 110 is a metal dome. When the user presses the control member 120, the metal dome is pushed to be in electrical contact with the electric contact 310 to output a corresponding signal. When the user releases the control member 120, the combining portion 122 combined in the fixed portion 112 returns to the release position with the elastic force of the elastic portion 111 of the contact member 110, that is, the control member 120 is suspended at a corresponding position of the electric contact 310. As the control member 120 is directly disposed on the contact member 110, the uniformity of the dome switch when exerting a force is improved, thus the limitation of low aligning performance of the conventional dome switch is prevented.
As shown in FIG. 3A and FIG. 3B, the second embodiment of the present invention discloses the implementation of a rubber switch. As shown in the figures; the elastic portion 111 of the contact member 110 is made of a rubber material, and a conductive rubber 1111 is disposed in the elastic portion 111. When the user presses the control member 120, the conductive rubber 1111 is pushed to be in electrical contact with the electric contact 310 to output a corresponding signal. When the user releases the control member 120, the combining portion 122 combined in the fixed portion 112 returns to the release position because of the elastic feature of the elastic portion 111, that is, the control member 120 is suspended at a corresponding position of the electric contact 310.
As shown in FIGS. 4A and 4B, the combining of the contact member 110 and the control member 120 can be realized by screw thread fitting. The combining portion 122 of the control member 120 has an external thread 1221, and the fixed portion 112 of the contact member 110 has an internal thread 1121 that matching with the external thread 1221. The user can selectively combine the combing portion 122 of the control member 120 and the fixed portion 112 of an appropriate contact member 110 by means of locking according to actual requirements.
As shown in FIG. 5A and FIG. 5B, the combining of the contact member 110 and the control member 120 can be realized by means of engaging. The combining portion 122 of the control member 120 has two opposite engaging grooves 1222, and the fixed portion 112 of the contact member 110 has two protruded ribs 1122 that corresponding to the engaging grooves 1222. The user can selectively buckle the combining portion 122 into the fixed portion 112 according to actual requirements, such that the control member 120 and the contact member 110 are engaged with each other.
The control member of the present invention can be combined with the contact member of an appropriate type according to actual requirements in the electrical connection, such that the objects of fast assembling, significantly reduced occupied space, and lower manufacturing cost are achieved.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Patent Application
20080023311
