JP6021011B2 - Indicator light - Google Patents

Description

  The present invention relates to an indicator lamp.

  2. Description of the Related Art Conventionally, there has been provided an indicator lamp such as a guide lamp that displays a evacuation route or the like by emitting light on one surface (front surface) in the thickness direction and having a flat rectangular parallelepiped shape as a whole (see, for example, Patent Document 1). .

  This type of indicator lamp includes a secondary battery, a charging circuit that charges the secondary battery in a non-power failure state, and a lighting circuit that turns on the light source using the secondary battery as a power source in the power failure state.

  In addition, as the above-described indicator lamp, there is an indicator lamp that includes a separate light source (for example, a light-emitting diode) from the above-described light source (hereinafter referred to as “main light source”) and that notifies information according to a lighting state. The information notified by the notification lamp is, for example, information on whether the secondary battery is being charged or discharged (that is, whether it is a non-power failure state or a power failure state), information on the presence or absence of deterioration of the secondary battery, and the like.

  Further, some of the indicator lights include a push button switch. The pushbutton switch is pressed to notify the amount of charge of the secondary battery, the presence or absence of deterioration of the secondary battery, and the like according to the lighting state of the notification lamp.

  Among the above indicator lamps, those that are fixed (so-called direct fixing) with the thickness direction (that is, the light emission direction of the main light source) exposed in the horizontal direction on the ceiling surface or the wall surface, The notification lamp and push button switch as described above are provided on the lower side. That is, the notification lamp emits light downward, and the pushbutton switch is pressed by a pressing force from below.

  In addition, among the above indicator lamps, those that are embedded and fixed on the wall surface with the light emission direction (front direction) of the main light source being the direction perpendicular to the wall surface, the notification lamp and the push button switch as described above are on the front side. Provided. That is, the notification lamp emits light forward, and the push button switch is pushed by a pushing force from the front.

JP 2009-99376 A

  The above-mentioned notification lamp and pushbutton switch are mounted on a printed wiring board, and the printed wiring board is held in a direction that matches the thickness direction with the thickness direction of the indicator lamp. The indicator lamp and push button switch are mounted downward (in the direction perpendicular to the thickness direction of the printed wiring board) in the indicator lamp that is directly fixed, and the indicator lamp and push button switch are not mounted in the indicator lamp that is embedded and fixed. Mounted toward the front (in the thickness direction of the printed wiring board).

  Therefore, the indicator lamps that are fixed directly and the indicator lamps that are embedded and fixed differ in the mounting direction of the notification lamp and the push button switch on the printed wiring board, so the printed wiring board can be shared. There wasn't. For this reason, the manufacturing cost as a whole of the above-mentioned two kinds of indicator lamps was high.

  This invention is made | formed in view of the said reason, The objective is to provide the indicator lamp which can reduce manufacturing cost.

  The indicator lamp of the present invention includes a main block and an external block coupled to the lower side of the main block. The main block includes a main light source including an electric light source, a secondary battery, and an uninterruptible state. A charging circuit for charging the secondary battery; a lighting circuit for lighting the main light source using the secondary battery as a power source in a power failure state; a push button switch that is pressed by a pressing force from below; A control circuit that detects a state of the secondary battery when the pushbutton switch is pressed and performs a state detection operation for controlling the notification light according to the detected state, and the main light source And a case for housing the secondary battery, the charging circuit, the lighting circuit, the pushbutton switch, the notification lamp, and the control circuit, respectively, and the front of the case is transparent to the light of the main light source. And a display unit that is made of a light-transmitting material and has a display, and an operation hole that exposes the pushbutton switch and a notification hole that exposes the notification lamp on the lower surface of the case The external block includes a conversion device that converts a pressing force from the front into an upward pressing force that pushes the push button switch, and a light guide device that distributes the light of the notification lamp forward. And a housing for housing and holding the conversion device and the light guide device.

  In the above indicator lamp, the conversion device may be pivotally supported with respect to the housing so as to rotate with respect to the housing and push the push button switch when receiving a pressing force from the front. .

  In the above indicator lamp, the case and the housing may be provided with concavities and convexities that fit together.

  Furthermore, in the above-described indicator lamp, a light guide made of a light-transmitting material may be provided as the light guide device.

  In the indicator lamp, the main block includes a light receiving element that receives an optical signal from below, and a light receiving hole that exposes the light receiving element is provided on a lower surface of the case. The state detection operation is also performed when a predetermined optical signal is received by the light receiving element, and the external block reflects the optical signal from the front on the inner surface and receives the light through the light receiving hole. You may have a light guide chamber which injects into an element.

  According to the present invention, the main block includes the indicator lamp that is directly attached and fixed on the ceiling surface or the wall surface after the external block is removed, and the indicator lamp that is attached and fixed to the wall surface with the external block attached. Therefore, it is possible to reduce the manufacturing cost of the two types of indicator lamps as a whole.

It is a disassembled perspective view which shows embodiment of this invention. It is sectional drawing which shows the principal part same as the above. It is a block diagram which shows the main block same as the above. It is a perspective view which shows the printed wiring board which the main block same as the above has. It is the perspective view which fractured | ruptured a part which shows the external block same as the above in the state in which the conversion apparatus is not pushed. It is the perspective view which fractured | ruptured a part which shows the external block same as the above in the state by which the converter was pushed. It is the perspective view which fractured | ruptured another part of the external block same as the above. It is a perspective view which shows a conversion apparatus same as the above. It is a perspective view which shows a light guide device same as the above. It is sectional drawing which shows the principal part of a main block same as the above and an external block. It is sectional drawing which shows the external block in the example of a change same as the above. It is a perspective view which shows the converter in another modified example same as the above. It is a perspective view which shows the external block in the example of a change same as the above.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the present embodiment includes a main block 1 having a push button and a notification lamp on the lower surface, an external block 2 coupled to the lower side of the main block 1, a main block 1, and an external block 2. And a holder 3 for holding them in a coupled state. The main block 1 and the holder 3 have a rectangular parallelepiped shape that is flat in the front-rear direction as a whole.

  The holder 3 is made of metal, for example, and a housing recess 30 in which the main block 1 and the external block 2 are housed is opened on the front surface of the holder 3. A frame 5 is attached to the front side of the holder 3 as shown in FIG. The frame body 5 is made of, for example, a synthetic resin, and improves the appearance by covering the gap between the inner peripheral surface of the storage recess 30 of the holder and the main block 1 when viewed from the front. As means for coupling the frame body 5 to the holder 3, for example, known means such as screwing or fitting can be used.

  The external block 2, the holder 3, and the frame body 5 are used when embedded and fixed to a wall surface (not shown). The holder 3 is fixed to the wall surface by, for example, screwing.

  The main block 1 has a configuration similar to that of a conventionally known indicator lamp that is used by being fixed (so-called direct fixing) in a state of being exposed on a ceiling surface or a wall surface. That is, when the present embodiment is directly fixed on the ceiling surface or wall surface, the external block 2, the holder 3, and the frame 5 are removed. Direct fixing of the main block 1 is achieved, for example, by screwing.

  As shown in FIG. 3, the main block 1 turns on the main light source 10 with the secondary battery 11, the charging circuit 12 that charges the secondary battery 11 in a non-power failure state, and the secondary battery 11 as a power source in the power failure state. And a lighting circuit 13.

  Each of the above parts is housed in a case 14 having a generally rectangular parallelepiped shape. The case 14 is made of, for example, a synthetic resin. The front surface (one surface in the thickness direction) of the case 14 is a display unit made of a material having translucency so that the light from the main light source 10 is diffused and transmitted. Further, a display indicating information such as the direction of the evacuation route is attached to the display unit (front surface) of the case 14, and the above display is illuminated by the main light source 10. When a predetermined pattern indicating the direction of the evacuation route is attached as the above display, the display lamp of the present embodiment is called a guide lamp.

  As the secondary battery 11, for example, a known nickel metal hydride battery can be used.

  The charging circuit 12 charges the secondary battery 11 with DC power obtained by converting power input from an external power supply (for example, AC power supply). Such a charging circuit 12 can be realized using, for example, a known AC-DC converter.

  As the main light source 10, for example, a known electrical light source such as a light emitting diode can be used.

  Further, the lighting circuit 13 can be realized by a well-known technique, such as when a light emitting diode is used as the main light source 10, it can be realized by using a well-known DC-DC converter.

  Further, the main block 1 includes an input device 15, a notification device 16, and a control circuit 17 that controls the notification device 16 in accordance with an input to the input device 15. The input device 15, the notification device 16, and the control circuit 17 are mounted on a printed wiring board 18 as shown in FIG. 4 together with the charging circuit 12 and the lighting circuit 13 and stored in the case 14.

  The input device 15 includes two push button switches 151 and 152 that are pressed by a pressing force from below, and a light receiving element 153 that receives an optical signal. The optical signal is, for example, using infrared as a medium, and for example, a photodiode can be used as the light receiving element 153.

  The notification device 16 includes two notification lamps 161 and 162 each formed of a light emitting diode, and a drive circuit (not shown) that drives each of the notification lamps 161 and 162 according to the control of the control circuit 17.

  On the lower surface of the case 14, there are two operation holes 141 that expose the pushbutton switches 151 and 152 one by one, and two notification holes 142 that expose the notification lights 161 and 162 one by one. A light receiving hole 143 that exposes the light receiving element 153 downward is provided.

  The control circuit 17 notifies the notification device 16 so that one of the notification lamps (hereinafter referred to as “first notification lamp”) 161 is lit during a period in which the secondary battery 11 is being charged by the charging circuit 12. To control.

  Further, the control circuit 17 determines whether or not there is an abnormality (for example, poor connection or end of life) of the main light source 10, and if it is determined that there is an abnormality in the main light source 10, the other notification lamp (hereinafter, “second notification”). It is called a “lamp”.) The notification device 16 is controlled so as to be notified by the lighting or blinking of 162.

  Further, the control circuit 17 inputs a predetermined optical signal to the light receiving element 153 when one of the push button switches (hereinafter referred to as “first push button switch”) 151 is pressed or when the charging state is instructed. When this is done, the charge amount as the state of the secondary battery 11 is detected, and the notification device 16 is controlled to blink one of the notification lights 161 and 162 according to the detected charge amount. Performs state detection operation.

  Further, the control circuit 17 receives a light signal when the other push button switch (hereinafter referred to as “second push button switch”) 152 is pressed or when a predetermined optical signal instructing the inspection of the secondary battery 11 is received. Is input, the second state detection operation of detecting deterioration as the state of the secondary battery 11 and controlling the notification device 16 according to the detection result is performed. Specifically, the control circuit 17 controls the lighting circuit 13 so that the charging by the charging circuit 12 is stopped for a predetermined time and the main light source 11 is turned on, and the reduction width of the output voltage of the secondary battery 11 at this time Whether or not the secondary battery 11 has deteriorated is determined based on the above. Thereafter, the control circuit 17 controls the notification device 16 so that the lighting state of the first notification lamp 161 becomes a lighting state (lighting or blinking) according to the determination result.

  Hereinafter, the external block 2 that is a feature of the present embodiment will be described.

  As shown in FIGS. 5 to 7, the external block 2 corresponds to the pushbutton switches 151 and 152 corresponding to the two conversion devices 21 provided in one-to-one correspondence and the notification lamps 161 and 162 corresponding to one-to-one correspondence. Two light guide devices 22 are provided. Each conversion device 21 converts the pressing force from the front into an upward pressing force for pressing the corresponding push button switches 151 and 152. In addition, each light guide device 22 distributes the light of the corresponding notification lamps 161 and 162 forward. Each conversion device 21 and each light guide device 22 are housed and held in the housing 4, respectively. The housing 4 is made of, for example, a synthetic resin and has a rectangular parallelepiped shape that is flat as a whole.

  More specifically, as shown in FIG. 8, each conversion device 21 has a disk shape with the thickness direction directed in the front-rear direction, an operation unit 211 that receives a pressing force from the front, and an operation unit 211. It consists of one part which has the main-body part 212 extended back from the rear surface. An action part 213 inserted into the operation hole 141 of the main block 1 protrudes upward from the rear end of the main body part 212. The housing 4 has two operation holes 41 that are opened on the front surface and expose the operation portions 211 of the conversion devices 21, respectively, and the action portions 213 of the conversion devices 21 that are opened on the upper surface and one each. Are provided with two working holes 42. In addition, a central portion in the axial direction of a cylindrical shaft portion 214 having an axial direction in the left-right direction is connected to the upper side of the front end portion of the main body portion 212. Each conversion device 21 can be rotated with respect to the housing 4 with the central axis of the shaft portion 214 as a rotation axis by pivotally supporting the left and right ends of the shaft portion 214 on the housing 4. Further, the central axis of the shaft portion 214 is located above the operation portion 211. When the operation unit 211 receives a backward pressing force (a pressing force from the front) as indicated by an arrow A1 in FIG. 8, the conversion device 21 rotates counterclockwise with respect to the housing 4 when viewed from the right. By this rotation, the action part 213 is displaced upward as indicated by an arrow A2, and the push button switches 161 and 162 are pushed in the operation hole 142 of the case 14. That is, the backward pressing force (the pressing force from the front) is converted into the upward pressing force (the pressing force from below) by the rotation of the conversion device 21, and acts on the push button switches 161 and 162. Further, the return of the conversion device 21 from the state of being pushed as shown in FIG. 6 to the state of FIG. 5 (that is, clockwise rotation when viewed from the right) is achieved by, for example, the weight of the conversion device 21. Excessive rotation of the conversion device 21 is prevented, for example, when the inner surface of the housing 4 contacts the conversion device 21. In order to minimize the amount of displacement of the operation unit 211 in the vertical direction, it is desirable that the shaft unit 214 is disposed as close to the operation unit 211 as possible. In order to increase the amount of vertical displacement of the action part 213 as much as possible, it is desirable that the action part 213 be arranged as far back as possible from the shaft part 214. As a material of the conversion device 21 as described above, for example, a synthetic resin can be used.

  Each light guide device 22 is a so-called light guide made of a material having translucency and having a shape as shown in FIG. The housing 4 has two light input holes 43 that are opened on the upper surface and project the rear end portion of each light guide device 22 upward, and one light guide device that is opened on the front surface and one light guide device. Two light output holes 44 that expose the front end portion of the front 22 are provided. As a material of the light guide device 22, for example, an acrylic resin, a polycarbonate resin, or glass can be considered. Note that the light guide device 22 may be an optical fiber whose refractive index distribution is designed so as to suppress loss. However, in this embodiment, since the optical path to be formed by the light guide device 22 is relatively short and loss is not a problem, the light guide device 22 is made of a single material and has a uniform refractive index. Use to reduce manufacturing costs.

  Further, a light guide chamber 45 is provided at the left end of the housing 4 so as to be separated from other parts and reflect an optical signal on the inner surface. The inner surface of the light guide chamber 45 may have a mirror shape that totally reflects the optical signal, or may be white that diffusely reflects the optical signal. The light guide chamber 45 has an incident hole 451 that opens to the front surface of the housing 4 and receives an optical signal, and an emission hole 452 that opens to the upper surface of the housing 4. The emission hole 452 is provided at a position overlapping the light receiving hole 143 in a state of being coupled to the main block 1. In other words, an optical signal incident from the front from the incident hole 451 is reflected upward in the light guide chamber 45, is emitted upward from the emission hole 452, and is incident on the light receiving element 153 through the light receiving hole 143. As shown in FIG. 7, an inclined surface 453 inclined upward toward the rear is provided below the emission hole 452 in the light guide chamber 45, and light incident on the inclined surface 453 from the front is emitted. Reflected into hole 452. However, even if the inclined surface 453 as described above is not provided, it is considered that an optical signal incident from the incident hole 451 is emitted from the emission hole 452 with sufficient intensity through multiple reflections in the light guide chamber 45. It is done.

  Further, on the upper surface of the housing 4, a ring-shaped convex portion 46 surrounding one working hole 42 corresponding to the first push button switch 151 is projected upward. Further, as shown in FIG. 10, a concave portion 144 into which the convex portion 46 is fitted is provided around the opening of the operation hole 141 corresponding to the first push button switch 151 in the case 14. That is, the convex portion 46 of the housing 4 is fitted into the concave portion 144 of the case 14, and the rear end portion of each light guide device 22 is inserted into the notification hole 142 of the case 14. The positioning of block 2 is achieved. The outer peripheral surface of the convex portion 46 and the outer peripheral surface of the concave portion 144 each have a truncated cone shape in which a diameter in a cross section perpendicular to the vertical direction decreases upward. Further, the outer diameter R1 of the upper end of the convex portion 46 of the housing 4 is made smaller than the inner diameter R2 (the inner diameter of the upper end of the concave portion 144) R2 of the case 14, and the upper end portion of the convex portion 46 is formed in the operation hole 141. Inserted. Contrary to the above, a convex portion may be provided on the main block 1 side, and a concave portion into which the convex portion is fitted may be provided on the external block 2 side. Moreover, you may provide multiple sets of the convex part 46 and the recessed part 144 which mutually fit as mentioned above.

  According to the above configuration, when directly fixed and used, the external block 2 and the holder 3 can be removed and the main block 1 can be used alone. If the external block 2 or the holder 3 is attached to the main block 1, it can be used by being embedded and fixed to the wall surface. That is, since the main block 1 can be shared by the indicator lamp that is fixed directly and the indicator lamp that is embedded and fixed to the wall surface, the printed wiring board 18 and the like are separately provided by the above two types of indicator lamps. Compared with the case of manufacturing, the manufacturing cost as a whole of the two types of indicator lamps can be reduced.

  Note that the conversion device 21 may be configured with two components 215 and 216 as shown in FIG. 11 instead of being configured with one component as described above. 11 receives a pressing force from the front (left side in FIG. 11) and receives a pressing force from the first displacement body 215 and a first displacement body 215 that is displaced to the right with respect to the housing 4. And a second displacement body 216 that pushes the push button switches 151 and 152 by being displaced upward with respect to the housing 4. The surfaces of the first displacement body 215 and the second displacement body 216 that contact each other are inclined surfaces that are inclined downward toward the rear. As the first displacement body 215 and the second displacement body 216 slidably contact each other, the backward force acting on the first displacement body 215 as indicated by the arrow A1 is indicated by the arrow A2. It is converted into an upward force and acts on the second displacement body 216. In the example of FIG. 11, a return spring 217 made of a compression coil spring that applies a return force to the first displacement body 215 is interposed between the rear end of the first displacement body 215 and the inner surface of the housing 4. ing. The return of the first displacement body 215 is achieved by the return spring 217 described above, and the return of the second displacement body 215 is achieved by, for example, dropping due to its own weight or the return force of the push button switches 151 and 152.

  Moreover, the converter 21 may be comprised with the flexible wire as shown in FIG. In this case, for example, an elastomer can be used as the material of the conversion device 21. Further, the conversion device 21 in this case is guided by the inner surface of the housing 4, and when one end exposed to the front of the housing 4 receives a backward pressing force and is pushed into the housing 4, the conversion device 21 protrudes above the housing 4. Increase the protruding dimension of the other end. That is, the one end portion is an operation portion 211 that receives an operation force, and the other end portion is an action portion 213 that pushes the push button switches 151 and 152. In order to efficiently transmit the pressing force, it is desirable that the conversion device 21 has little friction with the housing 4, is easily bent, and is not easily compressed. The return of the conversion device 21 in this case is achieved by the return force of the push button switches 151 and 152, for example.

  Needless to say, the shape of each part can be changed as appropriate. FIG. 13 shows an example in which the shape of one operation hole 41, each light output hole 44, and the incident hole 451 is changed and the inclined surface 453 in the light guide chamber 45 is deleted.

DESCRIPTION OF SYMBOLS 1 Main block 2 External block 4 Housing 10 Main light source 11 Secondary battery 12 Charging circuit 13 Lighting circuit 14 Case 17 Control circuit 21 Converter 22 Light guide device 45 Light guide chamber 46 Convex part 141 Operation hole 142 Notification hole 143 Light reception hole 144 Recess 151, 152 Pushbutton switch 153 Light receiving element 161, 162 Information lamp

Claims (5)

The main block,
An external block coupled to the lower side of the main block;
The main block includes a main light source including an electric light source, a secondary battery, a charging circuit for charging the secondary battery in a non-power-out state, and the main light source is turned on using the secondary battery as a power source in a power-out state. A lighting circuit to be operated, a pushbutton switch that is pushed by a pressing force from below, a notification lamp that emits light downward, and a state of the secondary battery that is detected when the pushbutton switch is pushed A control circuit that performs a state detection operation for controlling the notification lamp according to the state that has been performed, the main light source, the secondary battery, the charging circuit, the lighting circuit, the pushbutton switch, the notification lamp, and the control circuit, And a case for storing each,
The front surface of the case is provided with a display unit that is made of a material having translucency so as to transmit the light of the main light source and has a display,
An operation hole for exposing the push button switch and a notification hole for exposing the notification lamp are provided on the lower surface of the case,
The external block includes a conversion device that converts a pressing force from the front into an upward pressing force that pushes the push button switch, a light guide device that distributes light of the notification lamp forward, and the conversion device. An indicator lamp comprising: a housing that houses and holds the light guide device.   2. The conversion device according to claim 1, wherein the conversion device is pivotally supported with respect to the housing so as to rotate with respect to the housing and push the push button switch when receiving a pressing force from the front. The indicated light.   The indicator lamp according to claim 1 or 2, wherein the case and the housing are provided with recesses and projections that fit together.   The indicator lamp according to claim 1, further comprising a light guide made of a material having translucency as the light guide device. The main block has a light receiving element for receiving an optical signal from below,
A light receiving hole for exposing the light receiving element is provided on the lower surface of the case,
The control circuit performs the state detection operation even when a predetermined optical signal is received by the light receiving element,
5. The external attachment block according to claim 1, wherein the external block includes a light guide chamber that reflects an optical signal from the front on the inner surface and enters the light receiving element through the light receiving hole. 6. Indicator light.

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