JPH05290662A - Lid opening/closig structure of electronic unit - Google Patents

Abstract

PURPOSE:To provide a lid opening/closing structure of an electronic apparatus provided with a means for turning a power source off for eliminating unnecessary battery consumption by utilizing the opening/closing of a lid. CONSTITUTION:Failure in turning off of a power source switch or unnecessary battery consumption when the switch of the power source is turned ON by strong outer force and so on, can be prevented by cutting the power source circuit of an electronic unit 1 provided with a lid 3 when the lid 3 is closed, regardless of ON/OFF condition of the power source switch of the unit. An engaging protrusion 4 to be engaged with a main body 2 is provided on the lid 3, and the engaging protrusion is engaged with the engagement part of the main body 2 when the lid 3 is closed, and the lid 3 is maintained at a closed position, while a switch contact inserted in series in the power source circuit by the engaging protrusion when the lid 3 is closed, is opened, and when the lid is closed, the contact is turned OFF, while it is turned ON when the lid 3 is opened, and the power source circuit is switched regardless of ON/OFF of the power source switch 12 of the electronic unit 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing structure for a lid of an electronic device, which has a lid for covering a main body.

[0002]

2. Description of the Related Art In electronic equipment using a battery as a power source,
In order to prevent wasteful battery consumption due to forgetting to turn off the power switch, an automatic power-off function is provided to shut off the power supply circuit and turn off the power when it is not used for a predetermined time. When the electronic device is a computer-related device such as an electronic notebook or a handheld word processor, auto power off is realized by incorporating software that turns off the power after a certain period of waiting for a key input.

[0003]

However, when the automatic power-off function is provided, the time for determining the unused state for turning off the power is set to a relatively long time such as 5 minutes or 10 minutes. Must be set to. This is because unless the user's thinking time or interruption due to other requirements is taken into consideration, the power is frequently turned off, which impairs the convenience of use. Therefore, the battery consumption during the time until the auto power off is not negligible, and if repeated, it will greatly affect the battery consumption. Also, in the case of a portable electronic device equipped with a push-button power switch, even if the lid is provided, the power is turned on when the lid receives a strong external force that causes it to bend when it is inserted into a pocket. However, even at this time, although the power is turned off by the auto power off function after a predetermined time, it cannot be denied that the battery life is affected. The present invention has been made in view of the conventional problems as described above, and in an electronic device including a lid, a power-off means is provided to eliminate unnecessary battery consumption by using opening and closing of the lid to effectively extend battery life. It is an object of the present invention to provide a lid opening / closing structure for an electronic device that can achieve the above.

[0004]

[Means for Solving the Problems] Means adopted by the present invention to achieve the above object comprises a main body which constitutes a housing of an electronic device, and a lid which covers the surface of the main body in an openable and closable manner. In the lid opening / closing structure of the electronic device, the lid opening / closing structure of the electronic device is configured such that the power supply circuit of the electronic device is shut off by closing the lid.

[0005]

According to the present invention, in an electronic device provided with a lid, the power supply circuit of the electronic device is shut off when the lid is closed regardless of the on / off state of the power switch of the device, so that a power source is provided. It is possible to prevent unnecessary battery consumption when the power switch is turned on due to forgetting to switch off or strong external force.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention. still,
The following examples are examples of embodying the present invention and do not limit the technical scope of the present invention. Figure 1
Is a side view showing an example of an electronic device according to an embodiment of the present invention,
2 is a cross-sectional view of a main part of the electronic device shown in FIG. 1, and FIG. 3 is a circuit diagram of a power supply circuit part. In FIG. 1, the electronic device 1
Is provided with a main body 2 and a lid body 3 which is connected to the main body 2 by a hinge 6 and is formed so as to be openable and closable. The lid body 3 is provided with an engagement protrusion 4 for engaging with the main body 2. Has been. The engaging projections 4 are for engaging the engaging portion of the main body and holding the lid 3 in the closed position when the lid 3 is closed, and are provided on the engaging portion of the main body 2. By pressing the release knob 5, the engagement is released and the lid 3 can be opened. The engaging portion between the lid 3 and the main body 2 is shown in an enlarged cross section in FIG. This figure shows a state in which the lid body 3 is closed. When the lid body 3 is closed, the engagement protrusion 4 is engaged with the engagement release knob 5 provided on the main body 2 and locked in the closed position. Since the engagement releasing knob 5 is pivotally supported by the rotating shaft 10 at a substantially central position and is biased by the spring member 13, the engagement with the engagement protrusion 4 is maintained. Further, a movable contact piece 7 and a fixed contact piece 8 formed of an elastic member are provided on the substrate 11 mounted in the main body 2 as shown in the drawing. The movable contact piece 7 is pressed by the tip of 4 and is pushed down to open the contact point with the fixed contact piece 8. As shown in FIG. 3, the movable contact piece 7 and the fixed contact piece 8 are switch contacts 14 inserted in series in the power supply circuit of the electronic device 1.
As shown in FIG. 2, when the lid 3 is closed, the contact is turned off, and when the lid 3 is opened, the contact is turned on, so that the power switch 12 of the electronic device 1 is connected in series. Open and close the power circuit. As described above, the movable contact piece 7 and the fixed contact piece 8 have one end fixed to the substrate 11 in the main body 2 as shown in FIG. 2, and are connected to the power supply circuit by the wiring formed on the substrate 11. There is. When the disengagement knob 5 provided on the main body 2 is pushed from the state in which the lid body 3 shown in FIG. 2 is closed, the disengagement knob 5 pivotally supported by the rotating shaft 10 resists the biasing force of the spring member 13. Then, it is rotated, and the engagement with the engagement protrusion 4 is released. At this time, since the engaging projection 4 is pushed up by the elastic repulsive force of the movable contact piece 7, the lid 3 is in a slightly opened state, and can be easily opened by hand. Further, since the movable contact piece 7 returns to the contact position with the fixed contact piece 8 due to its elasticity, the switch contact 14 is closed and the power switch 12 can be turned on. With the above configuration, the power supply circuit is automatically shut off by closing the lid 3 even when the power is forgotten to be turned off. Further, even when the power switch is turned on by an external pressure or the like, the power does not turn on when the lid 3 is closed, so that wasteful consumption of the battery is prevented. By using the above device and the above-mentioned auto power-off device together, wasteful power consumption is extremely reduced.

[0007]

As described above, according to the present invention, in an electronic device having a lid, the power supply circuit of the electronic device can be turned on / off when the lid is closed. By shutting off the power without doing so, it is possible to prevent useless battery consumption when the power switch is forgotten to be turned off or the power is turned on unexpectedly due to a strong external force or the like.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration of an electronic device according to an embodiment of the invention.

FIG. 2 is a cross-sectional view showing a lid opening / closing structure according to an embodiment of the present invention.

FIG. 3 is a circuit diagram showing a configuration in which a power supply circuit is turned on / off by opening / closing a lid.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electronic device 2 ... Main body 3 ... Lid body 4 ... Engagement protrusion 5 ... Engagement release knob 7 ... Movable contact piece 8 ... Fixed contact piece 14 ... Switch contact

Claims (1)

[Claims] 1. A lid opening / closing structure for an electronic device, comprising: a main body that constitutes a casing of an electronic device; and a lid that covers a surface of the main body so as to be openable and closable, by closing the lid. A lid opening / closing structure for an electronic device, wherein a power supply circuit of the electronic device is cut off.