JP5195035B2 - Switch structure and electronic device equipped with the same - Google Patents

Description

  The present invention relates to a switch structure and an electronic device including the switch structure.

  2. Description of the Related Art Conventionally, there is known a power switch erroneous operation prevention device in which a control unit that receives a signal indicating that an electronic device is in operation operates an actuator to displace a rod and engage a power switch. This is intended to prevent the power from being cut off during operation of an electronic device such as a personal computer (see Patent Document 1).

JP-A-9-63395

  However, the conventional power switch erroneous operation preventing device includes an actuator for operating the rod. For this reason, the apparatus is large. In order to mount the actuator, a mounting space must be secured in the electronic device. Under such circumstances, it is assumed that the conventional power switch erroneous operation preventing device is difficult to be mounted on an electronic device. In particular, it is very time-consuming when it is to be installed in an electronic device as a retrofit.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a simple switch structure that can prevent erroneous operation of the switch and can be easily mounted on an electronic device.

  In order to solve the above problems, the switch structure disclosed in this specification includes a switch body that switches between a conduction state and a conduction interruption state by swinging of a seesaw member, an outer frame member that is disposed outside the switch body, And an engaging member that is slidably attached to the outer frame member and engages with the seesaw member in a conductive state.

  The engaging member is attached to the outer frame member so that they are integrated. The outer frame member is integrated with the switch body. The switch structure disclosed in this specification has such a simple structure. The outer frame member and the switch body can be integrated by a conventionally known means such as fitting or adhesion. The integrated outer frame member and the switch body are fitted into a switch mounting hole formed at a mounting location such as a housing of the electronic device. Thereafter, screws may be attached or the like, but it can be easily attached only by fitting and fitting. In this way, the switch structure disclosed in this specification can be easily mounted on an electronic device.

  The engaging member is slidably attached to the outer frame member. The seesaw member has an end portion that is in a lowered state when it is in a conductive state. The engaging member moves so as to overlap the upper side of the end portion that is in the lowered state in the conductive state. Thereby, the operation | movement from the conduction | electrical_connection state of a seesaw member to a conduction | electrical_connection interruption | blocking state can be restrained. As a result, it is possible to prevent the power supply from being shut off due to an erroneous operation of the switch.

  The switch structure disclosed in this specification can prevent erroneous operation of the switch by a simple structure including an engaging member that slides with respect to the outer frame member. In addition, it can be easily mounted on an electronic device.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Embodiments of the invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a diffusion exploded view of the switch structure 1. The switch structure 1 includes a switch body 2, an outer frame member 3, and an engagement member 4.

  2 is a diagram showing a schematic configuration of the switch body 2. FIG. 2 (a) is a plan view, FIG. 2 (b) is a front view, FIG. 2 (c) is a right side view, and FIG. It is a left side view. The switch body 2 includes a seesaw member 2a, a body portion 2b, and a top plate 2c. The seesaw member 2a is pivotally supported by a shaft (not shown) accommodated in the trunk portion 2b, and is swingable. The switch body 2 can be switched between a conduction state and a conduction cutoff state by the swinging of the seesaw member 2a. A contact switching mechanism for switching between a conductive state and a conductive cut-off state is accommodated in the body portion 2b. When the end 2a1 of the seesaw member 2a is moved downward, the conductive state is established. The switch body 2 has a curved arm portion 2b1 on the side wall of the body portion 2b. This arm 2b1 is formed by sheet metal processing.

  3A and 3B are diagrams showing a schematic configuration of the outer frame member 3. FIG. 3A is a plan view, FIG. 3B is a front view, FIG. 3C is a right side view, and FIG. Is a left side view. FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a cross-sectional view taken along line BB in FIG. The outer frame member 3 has a trunk portion 3a and a top plate 3b. The trunk | drum 3a is provided in a row by the top plate 3b. A mounting hole 3b1 for the switch body 2 is formed in the top plate 3b. Further, guide grooves 3b2 of the engaging member 4 are formed on both sides of the mounting hole 3b1. A contact 5 is attached to the end of the guide groove 3b2 on one side. A lead wire 5 a is attached to the contact 5. The top plate 3b is formed with two recesses 3b31 and 3b32 for positioning the sliding engagement member 4, respectively. The recess 3b31 is positioned when the engaging member 4 allows the seesaw member 2a to swing. The recess 3b32 serves as a positioning when the engaging member 4 restrains the swing of the seesaw member 2a.

  6A and 6B are diagrams showing a schematic configuration of the engaging member 4. FIG. 6A is a plan view, FIG. 6B is a front view, FIG. 6C is a right side view, and FIG. Is a left side view. The engaging member 4 includes an engaging portion 4a that overlaps the end 2a1 of the seesaw member 2a. In addition, leg portions 4c extending downward in the drawing are connected to both sides of the engaging portion 4a via connecting portions 4b. A claw portion 4c1 protruding outward is formed at the tip of the leg portion 4c. A contact 6 is attached to the end of the connecting portion 4b on the leg 4c side at a position where it can come into contact with the contact 5 attached to the guide groove 3b2. A lead wire 6 a is attached to the contact 6. The contact 5 and the contact 6 can detect the engagement state of the engagement member 4 with respect to the seesaw member 2a by the contact state. That is, the contact 5 and the contact 6 are examples of a detection unit. Further, on the lower surface side of the engaging portion 4a, convex portions 4a1 that match the concave portions 3b31 or 3b32 provided on the top plate 3b of the outer frame member 3 are provided at two locations.

  The switch body 2, the outer frame member 3, and the engaging member 4 as described above are assembled as shown in FIG. First, the assembly of the switch body 2 and the outer frame member 3 will be described. The switch body 2 is fitted into a mounting hole 3b1 formed in the top plate 3b of the outer frame member 3. As a result, the outer frame member 3 is disposed outside the switch body 2. At this time, the trunk | drum 2b is pushed in to the attachment hole 3b1, deform | transforming the arm part 2b1. The arm portion 2b1 returns to its original shape due to its elasticity when passing through the attachment hole 3b1. The tip of the arm 2b1 that has returned to its original shape contacts the ceiling surface of the top plate 3b of the outer frame member 3. At this time, the top plate 2c of the switch body 2 is placed on the top side of the top plate 3b. Thereby, the top plate 3b of the outer frame member 3 is sandwiched between the top plate 2c of the switch body 2 and the arm portion 2b1. As a result, both are united without using screws or the like.

  Next, assembly of the outer frame member and the engaging member 3 will be described. First, the both leg portions 4c are held with the interval narrowed. Both leg portions 4c held with a small interval are inserted into the guide grooves 3b2 from above the top plate 3b. And if the nail | claw part 4c1 reaches | attains the lower edge of the trunk | drum 3a, both the leg parts 4c will be returned to an original shape by elasticity. As a result, the claw portion 4c1 is locked to the lower edge of the trunk portion 3a. Thereby, the engaging member 4 is slidably attached to the outer frame member 3. Here, the movable range of the engaging member 4 is determined within the range of the length of the guide groove 3b2. The engagement member 4 only needs to be able to move within a range in which engagement and release with respect to the end 2a1 of the seesaw member 2a can be realized. The moving range of the engaging member 4 in the switch structure 1 disclosed in the present specification is set in a range that does not protrude from the top plate 3b. For this reason, it does not get in the way regardless of the position of the engaging member 4. Further, when the switch structure 1 is attached to an electronic device or the like, the engagement member 4 does not hinder the attachment. That is, the movement range of the engaging member 4 does not become a restriction when the switch structure 1 is attached to an object such as an electronic device.

  As described above, by assembling the switch body 2 and the engaging member 4 to the outer frame member 3, the assembly of the switch structure 1 is completed. The order of mounting the switch body 2 and the engagement member 4 to the outer frame member 3 is not limited. FIG. 7 is a perspective view of the switch structure 1 in an assembled state. FIG. 8 is an explanatory perspective view of the switch structure 1 in a state where the outer frame member 3 is taken along the line BB in the assembled state.

  Next, the operation of the switch structure 1 will be described with reference to FIGS. FIG. 9 is an explanatory diagram of the switch structure 1 in a state where the engagement of the engagement member 4 with the seesaw member 2a is released. In FIG. 9, the outer frame member 3 is in a cross-sectional state taken along line AA in FIG. FIG. 10 is an explanatory diagram of the switch structure 1 in a state where the engaging member 4 is engaged with the seesaw member 2a. In FIG. 10, the outer frame member 3 is in a cross-sectional state taken along line AA in FIG. In the state shown in FIG. 9, the swing of the seesaw member 2a is not restrained. For this reason, switching between the conduction state and the conduction interruption state of the switch body 2 is performed in the state shown in FIG. At this time, the convex part 4a1 provided in the engaging part 4a of the engaging member 4 is in a state of matching the concave part 3a31. For this reason, the engaging member 4 does not move. Further, the contact 5 and the contact 6 are in a separated state. By detecting that the contact 5 and the contact 6 are separated from each other, it can be confirmed that the engagement of the engagement member 4 with the seesaw member 2a is released.

  As shown in FIG. 9, after the end portion 2a1 of the seesaw member 2a is pushed down to be in a conductive state without restraining the swinging of the seesaw member 2a, the engaging member 4 is moved. Thereby, as shown in FIG. 10, the engaging part 4a moves so that it may overlap with the upper side of the edge part 2a1. And the rocking | fluctuation of the seesaw member 2a is restrained. That is, the switch body 2 is restrained from moving from the conduction state to the conduction cutoff state of the seesaw member 2a. At this time, the convex part 4a1 provided in the engaging part 4a of the engaging member 4 is in a state of matching the concave part 3a32. For this reason, the engaging member 4 does not move. Further, the contact 5 and the contact 6 are in contact with each other. By detecting the contact between the contact 5 and the contact 6, it can be confirmed that the engagement member 4 is engaged with the seesaw member 2a. If the engagement member 4 is engaged with the seesaw member 2a, the seesaw member 2a cannot be operated. Thereby, the erroneous operation from the conduction state of the switch body 2 to the conduction interruption state can be avoided.

  The switch structure 1 described above can be used for various electronic devices. Here, an example in which the personal computer 50 is installed as an example of an electronic device will be described.

  FIG. 11 is a front view showing the front side of the personal computer 50. The personal computer 50 has a housing 51. The switch structure 1 is attached to the housing 51. FIG. 12 is an explanatory diagram showing a state in which the switch structure 1 is attached to the housing 51. A mounting hole 51 a is provided on the front side of the housing 51. If the switch structure 1 is pushed into and fitted into the mounting hole 51a, the switch structure 1 can be easily attached to the housing 51. The switch structure 1 does not fall out of the casing 51 due to friction between the body portion 3a of the outer frame member 3 and the inner wall of the mounting hole 51a.

  A dustproof filter is mounted on the front side of the housing 51. A display unit 53 is attached. The display part 53 displays the information regarding the detection result (engagement status) about the engagement state to the seesaw member 2a of the engagement member 4. FIG. Specifically, the green lamp is turned on when the engagement member 4 is engaged with the seesaw member 2a. That is, when the contact 5 and the contact 6 are in contact, the display unit 53 turns on the green lamp. On the other hand, when the engagement of the engagement member 2a with the seesaw member 2a1 is released, the red lamp is turned on. That is, when the contact 5 and the contact 6 are separated from each other, the display unit 53 turns on the red lamp.

  On the front side of the housing 51, a power lamp 54, a disk access lamp 55, a hardware abnormality detection lamp 56, and a standby lamp 57 are mounted. The power lamp 54 indicates the power state of the personal computer 50. When the green lamp is lit, it indicates that the power is on. On the other hand, when the orange lamp is lit, it indicates that the power saving state is set. The disk access lamp 55 is lit when data is written to or read from the hard disk housed in the housing 51. The hardware abnormality detection lamp is turned on when a hardware abnormality is detected. The standby lamp 57 is lit when the personal computer 50 is in a standby state.

  A compact disk read only memory (CD-ROM) drive 58 is attached to the casing 51. The CD-ROM drive 58 has a disk eject button 59. A flexible disk drive 60 is mounted on the casing 51. The flexible disk drive 60 has a flexible disk eject button 61.

  FIG. 13 is a block diagram showing a part of the internal configuration of the personal computer 50. Inside the housing 51 is housed a control unit 101 that controls conduction and interruption of power supply. The control unit 101 is connected to the switch structure 1. The control unit 101 and the switch structure 1 are connected for switching between conduction and interruption of the power source and connection by the lead wires 5a and 6a. The control unit 101 is connected to a main board 102 that is a board on which electronic components are mounted, and is further connected to a power supply unit 103. A display unit 53 is connected to the control unit 101. A process performed by the control unit 101 when the power is turned on will be described.

  A user of the personal computer 50 operates the seesaw member 2a to bring the switch body 2 into a conductive state. Thereby, the control part 101 acquires switch status that the switch main body 2 will be in a conduction | electrical_connection state as shown by the referential mark (1) in FIG. The control unit 101 that has acquired the switch status issues a power-on notice signal to the main board 102 as indicated by reference numeral (2). The main board 102 that has received the power-on notice signal issues a response signal to the power-on signal as indicated by reference numeral (3). The control unit 101 acquires this response signal. Thereafter, the control unit 101 issues a power-on signal to the power supply unit 103 as indicated by reference numeral (4). Then, power-on is started from the power supply unit 103. After the power-on is completed, the power unit 103 issues a power-on completion signal as indicated by reference numeral (5). The control unit 101 acquires this power-on completion signal. When the power is turned on, the power lamp 54 is turned on.

  The control unit 101 obtains an engagement status related to the engagement state of the engagement member 4 with respect to the seesaw member 2a as indicated by reference numeral (A), separately from the transmission / reception of the signal related to power-on. The engagement status is displayed on the display unit 53.

  If the engagement member 4 is not engaged with the seesaw member 2a even though the power is turned on and the power lamp is lit, a red lamp is lit on the display unit 53. The lighting of the red lamp is a warning for bringing the engagement member 4 into the engaged state. When the user operates the engaging member 4 and the engaging member 4 is engaged with the seesaw member 2a, the swinging of the seesaw member 2a is restrained. On the front side of the housing 51, a disk eject button 59 and a flexible disk eject button 61 are arranged. For this reason, when the user tries to operate these buttons, it is assumed that the user touches the switch body 2 by mistake. However, the engagement of the engagement member 4 with the seesaw member 2a restrains the seesaw member 2a from swinging, that is, the operation from the conduction state to the conduction cutoff state. Thereby, the erroneous operation of the switch body 2 can be prevented. When the engaging member 4 is engaged with the seesaw member 2a, the contact 5 and the contact 6 are brought into contact with each other. Along with this, the display unit 53 switches to lighting of the green lamp. Note that a warning sound may be emitted when the red lamp in the display unit 53 is turned on.

  Next, the operation when the power is shut off will be described. The personal computer 50 of this embodiment starts an operation for safely shutting off the power supply when the engagement of the engagement member 4 with the seesaw member 2a is released. That is, when the engagement member 4 is operated and the contact 5 and the contact 6 are separated from each other, the control unit 101 issues a power-off notice signal to the main board 102 as indicated by reference numeral (2). The main board 102 that has received the power shutdown notice signal issues a response signal to the power shutdown signal as indicated by reference numeral (3). The control unit 101 acquires this response signal. Thereafter, the control unit 101 issues a power cutoff signal to the power supply unit 103 as indicated by reference numeral (4). Then, power supply from the power supply unit 103 is cut off. After the power shutdown is completed, the power unit 103 issues a power shutdown completion signal as indicated by reference numeral (5). The control unit 101 acquires this power shutdown completion signal. When the power shutdown is completed, the power lamp 54 is turned off.

  The processing described above for shutting off the power supply is based on the following concept. That is, when the engagement member 4 is disengaged, it is based on the idea that the user operates the engagement member 4 based on the intention of shutting off the power supply. As a result, it is possible to avoid a sudden power shutdown due to an erroneous operation and to perform a quick power shutdown.

  As described above, according to the switch structure 1 disclosed in the present specification, erroneous operation of the switch can be prevented with a simple and compact structure. Moreover, since the switch structure 1 can be mounted simply by fitting into the mounting hole 51a, it can be easily mounted on an electronic device or the like.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific embodiments, and various modifications, within the scope of the gist of the present invention described in the claims, It can be changed.

FIG. 1 is a diffusion exploded view of a switch structure. 2A and 2B are diagrams showing a schematic configuration of the switch body. FIG. 2A is a plan view, FIG. 2B is a front view, FIG. 2C is a right side view, and FIG. FIG. 3A and 3B are diagrams showing a schematic configuration of the outer frame member. FIG. 3A is a plan view, FIG. 3B is a front view, FIG. 3C is a right side view, and FIG. It is a left side view. FIG. 4 is a cross-sectional view of the outer frame member taken along line AA in FIG. FIG. 5 is a cross-sectional view of the outer frame member taken along line BB in FIG. 6A and 6B are diagrams showing a schematic configuration of the engaging member. FIG. 6A is a plan view, FIG. 6B is a front view, FIG. 6C is a right side view, and FIG. It is a left side view. FIG. 7 is a perspective view of the switch structure in an assembled state. FIG. 8 is a perspective explanatory view of the switch structure in a state where the outer frame member is a cross section taken along line BB in FIG. 3B in the assembled state. FIG. 9 is an explanatory diagram of the switch structure in a state where the engagement of the engagement member with the seesaw member is released. FIG. 10 is an explanatory diagram of the switch structure in a state where the engaging member is engaged with the seesaw member. FIG. 11 is a front view showing the front side of the personal computer. FIG. 12 is an explanatory diagram showing a state in which the switch structure is attached to the housing. FIG. 13 is a block diagram showing a part of the internal configuration of the personal computer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Switch structure 2 ... Switch body 2a ... Seesaw member 2a1 ... End part 2b ... Trunk part 2b1 ... Arm part 2c ... Top plate 3 ... Outer frame member 3a ... Trunk part 3b ... Top plate 3b1 ... Mounting hole 3b2 ... Guide groove 4 ... engaging member 4a ... engaging part 4b ... connecting part 4c ... leg part 4c1 ... claw part 5, 6 ... contact 5a, 6a ... lead wire 50 ... personal computer 51 ... housing 51a ... mounting hole 53 ... display part 101 ... Control unit 102 ... main board 103 ... power supply unit

Claims (5)

A contact switching mechanism for switching between a conduction state and a conduction cutoff state is housed in the trunk, and a switch body that switches between a conduction state and a conduction cutoff state by swinging of the seesaw member;
An outer frame that includes a top plate having a mounting hole of the switch body and a guide groove located on a side of the mounting hole, and a body portion that is continuously provided on the top plate, and is disposed outside the switch body. Members,
An engaging portion that engages with an end portion of the seesaw member that is pushed down in a conducting state, and extends in a direction in which the switch body is inserted into the outer frame member that is connected to the engaging portion, A leg portion disposed in the groove; and a claw portion provided on the leg portion and slidably engaged with the body portion of the outer frame member, and slidably attached to the outer frame member An engaging member to be
A switch structure characterized by comprising: The switch structure according to claim 1, further comprising detection means for detecting an engagement state of the engagement member with the seesaw member. An electronic device comprising the switch structure according to claim 1 or 2 in a housing in which a substrate is disposed. The electronic device provided with the switch structure according to claim 1 or 2, wherein the outer frame member is fitted into a mounting hole provided in a housing in which a substrate is disposed. An electronic apparatus comprising the switch structure according to claim 2 in a casing, and a display section for displaying information related to a detection result of the detection unit in the casing.

Images