Cover opening and closing detecting device

Abstract

To provide a lid open and close detection device in which opening and closing of the lid can be steadily detected when the rotating angle of the lid has come to a prescribed angle, and in which a protrusion such as exposing to the lid is not required and the overall dimensions of the lid and the main body can be made small. The detection device is installed on a mobile phone that has a main body 1, a lid 2 that is connected to the main body 1 capable of rotating, and a hinge member 3 that connects this lid 2 to the main body 1 capable of rotating. It comprises a movable contact 20 that is made of a ring shape pattern formed on one face of a rotating plate 19 of a rotating body 7 that rotates in accordance with the rotation of the hinge member 3 provided integrally with the lid 2, a common contact 21 that is made of a ring shape pattern formed on the other face of the rotating plate, and a wafer 14 that is fixed on the main body 1 side and holds a terminal 12 that has a fixed contact 10 for contacting sliding with the movable contact 20 and a terminal 13 that has a fixed contact 11 for contacting sliding with the common contact 21. The opening and closing of the lid 2 is detected in accordance with the opening and closing of the movable contact 20 and the fixed contact 10.

Description

technical field [0001] The invention relates to a cover opening and closing detection device, which is usually installed in a structure such as a mobile phone with a flip cover that can be rotated through a hinge part on the main body. Background technique [0002] As a known conventional technology, a cover opening / closing detecting device is installed in a mobile phone having a main body provided with an operating portion, a cover capable of covering the main body, and the cover being rotatably connected to the main body. hinge parts. [0003] The above-mentioned known cover includes a protrusion provided to be exposed from the cover and a rubber contact provided on the body to be in an ON state by being pushed by the protrusion. In this way, when the cover is closed, the protrusion pushes the rubber contact to be in the ON state, thereby detecting that the cover is closed. On the contrary, when the cover is opened, the protruding part leaves the rubber contact, and unde...

AI Technical Summary

Problems solved by technology

[0006] Like this, in the above-mentioned conventional technology, the open state cannot be detected even if the cover is opened, and conversely, the closed state cannot be detected even when the cover is almost closed.

That is to say, because the problem that the opening and closing of the cover can only be detected when the rotation angle of the cover reaches a predetermined value is not considered, there is a phenomenon that the detection accuracy of the opening and closing of the cover is lowered.

[0007] Also in the above-mentioned conventional technology, there is not only the appearance and aesthetic feeling affected by the exposed protrusions on the cover, but also the space required for the protrusions on the cover and the space required for the rubber contacts to be arranged on the body. Space, thereby increasing the overall shape and size including the body and cover, it is difficult to achieve miniaturization

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