Luminaire

Abstract

To improve workability when detaching a battery unit from an appliance body.SOLUTION: A luminaire 1 comprises a light source unit 2, a battery unit 3, a circuit unit 4, a radio communication unit 5, an appliance body 10, and a cover. The radio communication unit 5 performs radio communication using a radio wave as a medium. The appliance body 10 holds the light source unit 2, the circuit unit 4, and the radio communication unit 5, and detachably holds the battery unit 3. The cover is detachably attached to the appliance body 10 so as to cover the battery unit 3, the circuit unit 4, and the radio communication unit 5. The radio communication unit 5 is arranged in an attachable / detachable region R1 in which the battery unit 3 can be attached and detached while the radio communication unit 5 is held by the appliance body 10.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure generally relates to lighting fixtures, and more particularly to lighting fixtures provided with a battery unit and a wireless communication unit.

Background Art

[0002] Patent Document 1 describes a lighting device including a main body, a light source, a frame member, and an antenna. Inside the main body, a storage battery, a communication module that controls the antenna, a lighting device that controls lighting of the light source, etc. are accommodated. The light source is, for example, an emergency lamp and lights up when there is a power outage in the external power supply. The frame member functions as a cover that covers the opening on the light source side in the main body. Further, the frame member has a through hole corresponding to the position of the light source and a through hole corresponding to the position of the antenna. The antenna protrudes toward the positive Z-axis direction, which is the irradiation direction of the light source, and a cover made of, for example, resin is provided on the protruding portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the lighting device (lighting fixture) described in Patent Document 1, when removing the storage battery housed inside the main body (apparatus main body), in addition to the operation of removing the frame member (cover), it is necessary to perform an operation of removing the cover that covers the protruding portion of the antenna. As a result, the workability when removing the storage battery from the main body may decrease.

[0005] An object of the present disclosure is to provide a lighting fixture capable of improving workability when removing a battery unit from an apparatus main body.

Means for Solving the Problems

[0006] The lighting fixture according to one aspect of the present disclosure includes a light source unit, a battery unit, a circuit unit, a wireless communication unit, an appliance body, and a cover. The light source unit has a light source. The battery unit has a storage battery. The circuit unit has a lighting circuit that lights the light source with charging power charged in the storage battery. The wireless communication unit performs wireless communication using radio waves as a medium. The appliance body holds the light source unit, the circuit unit, and the wireless communication unit, and removably holds the battery unit. The cover is removably attached to the appliance body so as to cover the battery unit, the circuit unit, and the wireless communication unit. The wireless communication unit is disposed in a detachable region where the battery unit is detachable with the wireless communication unit held by the appliance body.

Effects of the Invention

[0007] According to the lighting fixture according to one aspect of the present disclosure, it is possible to improve the workability when removing the battery unit from the appliance body.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0009] Hereinafter, the lighting fixture according to the embodiment will be described with reference to the drawings. The drawings referred to in the following embodiments and the like are schematic drawings, and the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensions, and the ratios of the sizes and the ratios of the thicknesses between the components do not necessarily reflect the actual dimensional ratios either.

[0010] (Embodiment) (1) Outline First, the outline of the lighting fixture 1 according to the embodiment will be described with reference to FIGS. 1 to 3.

[0011] As shown in FIGS. 1 to 3, the lighting fixture 1 according to the embodiment is an emergency light which is a kind of lighting fixture with a built-in battery for emergency use. The emergency light is an emergency lighting fixture for general lighting to illuminate the evacuation route in the event of a power outage due to a disaster such as a fire. In this embodiment, as an example, the lighting fixture 1 is a ceiling-embedded type emergency light embedded in the ceiling.

[0012] In the following description, unless otherwise specified, the front-rear direction and the left-right direction indicated by the arrows in FIG. 3 are defined as the front-rear direction and the left-right direction of the lighting fixture 1 and its components. Also, the normal direction of the paper surface of FIG. 3 is defined as the up-down direction of the lighting fixture 1 and its components. However, these directions are not intended to limit the directions of use of the lighting fixture 1 and its components. Also, the arrows indicating "front", "rear", "left", "right", and "down" in FIG. 3 are only shown for the purpose of explanation and do not have any physical entity.

[0013] As shown in FIGS. 1 and 2, the lighting fixture 1 according to the embodiment includes a light source unit 2, a battery unit 3, a circuit unit 4, a wireless communication unit 5, a fixture body 10, and a cover 11. The light source unit 2 has an LED module 20 (light source). The battery unit 3 has a storage battery 30. The circuit unit 4 has a lighting circuit 402 (see FIG. 5) that lights the LED module 20 with the charging power charged in the storage battery 30. The wireless communication unit 5 performs wireless communication using radio waves as a medium. The fixture body 10 holds the light source unit 2, the circuit unit 4, and the wireless communication unit 5, and removably holds the battery unit 3. The cover 11 is removably attached to the fixture body 10 so as to cover the battery unit 3, the circuit unit 4, and the wireless communication unit 5. The wireless communication unit 5 is disposed in a removable region R1 (see FIG. 3) that is a region where the battery unit 3 can be removed while the wireless communication unit 5 is held by the fixture body 10.

[0014] In the lighting fixture 1 according to the embodiment, the wireless communication unit 5 is disposed in a removable region R1 that is a region where the battery unit 3 can be removed while the wireless communication unit 5 is held by the fixture body 10. Thereby, it becomes possible to remove the battery unit 3 without removing the wireless communication unit 5, and as a result, it becomes possible to improve the workability when removing the battery unit 3 from the fixture body 10.

[0015] (2) Details Next, each component of the lighting fixture 1 according to the embodiment will be described with reference to FIGS. 1 to 4.

[0016] As shown in FIGS. 1 and 2, the lighting fixture 1 according to the embodiment includes a light source unit 2, a battery unit 3, a circuit unit 4, a wireless communication unit 5, a fixture body 10, and a cover 11. The lighting fixture 1 further includes a pair of supports 12 and a pair of mounting springs 13. The lighting fixture 1 is attached to the ceiling by a pair of supports 12.

[0017] (2.1) Light source unit As shown in FIGS. 2 and 3, the light source unit 2 includes an LED module 20, a heat dissipation member 21, a lens block 22, a mounting member 23, and a pressing member 24.

[0018] The LED module 20 is a so-called white LED (Light Emitting Diode) for illumination. In this embodiment, the LED module 20 corresponds to the light source. That is, the light source unit 2 has a light source (LED module 20).

[0019] The lens block 22 is made of, for example, glass. The lens block 22 has a generally frustum-shaped lens portion 220 and an annular outer flange portion 221 that protrudes outward from the periphery of the lens portion 220 (see FIG. 2). The lens portion 220 controls the light distribution of the illumination light emitted from the LED module 20.

[0020] The heat dissipation member 21 is formed in a U shape having a lower side wall, a left side wall, and a right side wall by a material with high heat dissipation, such as an aluminum material. The heat dissipation member 21 is a member for dissipating the heat generated by the LED module 20.

[0021] The pressing member 24 is formed in a disc shape by a synthetic resin material such as polycarbonate resin. A square hole 240 is opened at the center of the pressing member 24. A part of the LED module 20 is inserted into the hole 240 of the pressing member 24, and the peripheral portion of the LED module 20 is pressed by a pressing portion 241 at the edge of the hole 240 in the pressing member 24.

[0022] The mounting member 23 is formed in an elliptical shape by a synthetic resin material such as polycarbonate resin. A circular recess that is recessed downward and a circular window hole 231 that opens at the bottom of the recess are provided at the center of the mounting member 23. The mounting member 23 inserts the lens portion 220 of the lens block 22 through the window hole 231, and is screwed to the lower surface of the heat dissipation member 21 with the LED module 20, the pressing member 24, and the outer flange portion 221 of the lens block 22 received in the recess.

[0023] (2.2) Battery Unit The battery unit 3 includes a plurality of storage batteries 30 and a case 31 that houses the plurality of storage batteries 30. Each of the plurality of storage batteries 30 is, for example, a cylindrical nickel-metal hydride battery (see FIG. 3). Note that each storage battery 30 may be a rectangular-prism-shaped nickel-metal hydride storage battery, or a cylindrical or rectangular-prism-shaped lithium-ion storage battery, etc. Also, the number of storage batteries 30 may be any number that can satisfy the standard value of the lighting time required for the emergency light.

[0024] The case 31 is formed in a cylindrical shape with the bottom surfaces on both the upper and lower sides being horseshoe-shaped (U-shaped) (see FIGS. 2 and 3). The plurality of storage batteries 30 are housed in the case 31 with their axial directions being the vertical direction and arranged in a row along the radial direction (see FIG. 3). Also, a connector portion 32 (see FIG. 2) is provided at one end portion on the lower side of the case 31. The connector portion 32 is configured to electrically connect the plurality of storage batteries 30 that are electrically connected in series within the case 31 to the lighting device 40 of the circuit unit 4 described later.

[0025] (2.3) Circuit Unit The circuit unit 4 includes a lighting device 40 (see FIG. 4), a housing 41, and a terminal block case 42.

[0026] The housing 41 is formed in a box shape from a synthetic resin material. The housing 41 houses the lighting device 40. Also, the housing 41 further houses two operating members 43 (see FIG. 1) that respectively press two push-button switches 406A and 406B described later.

[0027] The terminal block case 42 is formed in a box shape from a synthetic resin material and is attached to the housing 41 so as to cover the terminal block attached to the outer surface of the housing 41. Note that the terminal block is electrically connected to the lighting device 40, and a power cable drawn from a draw-in hole provided on the top surface of the appliance main body 10 is detachably connected thereto. That is, the lighting device 40 is electrically connected to the power cable via the terminal block.

[0028] The lighting device 40 can be realized by, for example, a computer system having one or more processors and one or more memories. That is, when one or more processors execute a program recorded in one or more memories of the computer system, it functions as a control circuit 404 described later. Here, the program is pre-recorded in the memory of the computer system, but it may be provided through a telecommunication line such as the Internet, or it may be provided by being recorded on a non-transitory recording medium such as a memory card.

[0029] As shown in FIG. 4, the lighting device 40 includes a DC power supply circuit 400, a charging circuit 401, a lighting circuit 402, a power failure detection circuit 403, a control circuit 404, a monitor lamp 405, two push-button switches 406, and a receiving unit 407.

[0030] The DC power supply circuit 400 is composed of, for example, a self-excited switching power supply circuit such as a ringing choke converter. The DC power supply circuit 400 converts an AC voltage supplied from an external power supply (for example, a commercial power system) 6 into a DC voltage lower than the effective value of the AC voltage.

[0031] The charging circuit 401 operates when being powered from the external power supply 6, and is configured to pass a charging current from the DC power supply circuit 400 to the battery unit 3.

[0032] The lighting circuit 402 is configured to constant-currentize the DC current supplied from the battery unit 3 and supply it to the light source unit 2. That is, the circuit unit 4 has a lighting circuit 402 that lights a light source (LED module 20) with the charging power charged in the storage battery 30.

[0033] The power failure detection circuit 403 is configured to detect a power failure of the external power supply 6 from the output voltage of the DC power supply circuit 400 and notify the control circuit 404.

[0034] The monitor lamp 405 is composed of, for example, light-emitting diodes that emit green light, and emits light by the charging current supplied from the charging circuit 401 to the battery unit 3. That is, by causing the monitor lamp 405 to emit light, it is notified that the storage battery 30 is being charged by the charging circuit 401.

[0035] The receiving unit 407 is configured to receive a wireless signal using infrared rays as a communication medium, demodulate a transmission frame from the received wireless signal, and pass it to the control circuit 404. This wireless signal is transmitted from a wireless transmitter operated by an operator who performs regular inspection work. Note that the regular inspection is carried out at regular intervals stipulated by laws and regulations, and is aimed at confirming that the lighting circuit 402 is forcibly operated and the light source unit 2 maintains the lighting state for a specified time or more.

[0036] The control circuit 404 is configured to operate the charging circuit 401 and stop the lighting circuit 402 when the power failure detection circuit 403 does not detect a power failure. Also, the control circuit 404 is configured to stop the charging circuit 401 and operate the lighting circuit 402 when the power failure detection circuit 403 detects a power failure. Further, the control circuit 404 is configured to stop the charging circuit 401 and operate the lighting circuit 402 to perform an inspection operation when one of the push-button switches 406B is pressed or when a transmission frame is received from the receiving unit 407. Also, the control circuit 404 is configured to stop the charging circuit 401 for several seconds and operate the lighting circuit 402, and then stop the lighting circuit 402 and operate the charging circuit 401 when the other push-button switch 406A is pressed. Each of the two push-button switches 406A and 406B is pressed by the corresponding operating member 43 among the two operating members 43 (see FIG. 1).

[0037] (2.4) Wireless communication unit As shown in FIG. 4, the wireless communication unit 5 includes an antenna 51, a wireless communication circuit 52, and a housing 50 (see FIG. 2).

[0038] The antenna 51 is, for example, a so-called meander line antenna composed of a conductor (copper foil) having a meander structure formed on the surface of an insulating substrate. However, the antenna 51 is not limited to a meander line antenna, and may be, for example, a half-wavelength dipole, a quarter-wavelength dipole antenna, an inverted F antenna, or a microstrip antenna.

[0039] The wireless communication circuit 52 receives a wireless signal received by the antenna 51, for example, a wireless signal using radio waves in the 920 MHz band as a medium. Further, the wireless communication circuit 52 acquires a control command from the wireless signal and transmits the control command to the control circuit 404 of the lighting device 40. Furthermore, the wireless communication circuit 52 transmits, as a wireless signal, a message (for example, the result of inspection) received from the control circuit 404 from the antenna 51. Here, the control commands acquired by the wireless communication circuit 52 include, for example, a command for instructing the control circuit 404 to start an inspection operation and a command for instructing the control circuit 404 to transmit the result of inspection. That is, the wireless communication unit 5 performs wireless communication using radio waves as a medium. Further, the wireless communication circuit 52 transmits and receives wireless signals via the antenna 51.

[0040] The housing 50 houses the antenna 51 and the wireless communication circuit 52. The housing 50 is formed, for example, in a box shape using a synthetic resin material.

[0041] (2.5) Appliance main body The appliance main body 10 is formed in a bottomed cylindrical shape with an open bottom surface. More specifically, the appliance main body 10 is formed in a rectangular cylindrical shape having 12 flat walls. Further, a plurality of flange pieces 100 protruding outward are formed at the lower end edges of each of the 12 walls of the appliance main body 10 (see FIGS. 2 and 3). As shown in FIG. 3, the appliance main body 10 is formed in a size capable of housing the light source unit 2, the battery unit 3, the circuit unit 4, and the wireless communication unit 5 therein. The appliance main body 10 is configured to hold the light source unit 2, the circuit unit 4, and the wireless communication unit 5 housed therein, and to hold the battery unit 3 detachably.

[0042] Here, as shown in FIG. 3, the wireless communication unit 5 is disposed in the detachable region R1. The detachable region R1 is a region (the region indicated by the dashed-dotted line in FIG. 3) that overlaps with the light source unit 2 in a plan view from the vertical direction, which is the detaching and attaching direction of the cover 11 with respect to the instrument main body 10. More specifically, the wireless communication unit 5 is a region that overlaps with the light source unit 2 in a plan view from the vertical direction, and is disposed in a space surrounded by the case 31 of the battery unit 3 and the housing 41 of the circuit unit 4. That is, the light source unit 2 and the wireless communication unit 5 are arranged side by side in the vertical direction. Thereby, the battery unit 3 can be removed from the instrument main body 10 without removing the wireless communication unit 5. That is, the wireless communication unit 5 is disposed in the detachable region R1, which is a region where the battery unit 3 can be detached and attached while the wireless communication unit 5 is held by the instrument main body 10.

[0043] On the left and right side walls of the instrument main body 10, one support tool 12 is attached to each (see FIGS. 1 and 2). The pair of support tools 12 is preferably formed in a long leaf spring shape. Each of the pair of support tools 12 is fixed to the wall of the instrument main body 10 at one end in the longitudinal direction, and the other end in the longitudinal direction is configured to be bendable in a direction approaching the top surface of the instrument main body 10 (upward). That is, the instrument main body 10 is supported by the ceiling material so as to sandwich the ceiling material between the pair of support tools 12 inserted into the embedding holes formed in the ceiling surface and the plurality of flange pieces 100 provided on the lower end surface of the instrument main body 10.

[0044] (2.6) Cover The cover 11 is formed in a disc shape larger than the outer diameter of the instrument body 10 (the outer diameter of the tip edges of the plurality of flange pieces 100), and a circular window hole 110 is provided in the center (see FIGS. 1 and 2). The lens portion 220 of the light source unit 2 is inserted through the window hole 110. The cover 11 is detachably attached to the instrument body 10 and is configured to close the opening 101 on the lower surface of the instrument body 10 when attached to the instrument body 10. More specifically, the cover 11 is detachably attached to the instrument body 10 so as to cover the battery unit 3, the circuit unit 4, and the wireless communication unit 5 held by the instrument body 10.

[0045] Furthermore, in the vicinity of the window hole 110 on the bottom surface of the cover 11, four holes (the first hole 111, the second hole 112, the third hole 113, the fourth hole 114) are provided so as to be arranged in two vertical and horizontal rows. The first hole 111 and the second hole 112 are provided at positions corresponding to the two operation members 43. The third hole 113 is provided at a position corresponding to the monitor lamp 405. The fourth hole 114 is provided at a position corresponding to the receiving unit 407.

[0046] Mounting springs 13 (see FIG. 2) are respectively attached to the front end and the rear end on the upper surface of the cover 11. The pair of mounting springs 13 are detachably inserted into insertion grooves provided in pairs on the front side and the rear side of the inner peripheral surface of the instrument body 10. That is, the cover 11 is held by the instrument body 10 in a state where the lower surface of the instrument body 10 is closed by inserting the pair of mounting springs 13 into the pair of insertion grooves respectively (see FIG. 1).

[0047] (3) Assembly procedure of the lighting fixture Next, the assembly procedure of the lighting fixture 1 according to the embodiment will be described. Hereinafter, it will be described on the assumption that the pair of supports 12 are attached to the instrument body 10 in advance, and the pair of mounting springs 13 are attached to the cover 11 in advance.

[0048] First, an operator performing the assembly work houses the circuit unit 4 inside the appliance body 10 and caulks and fixes the housing 41 of the circuit unit 4 to the top surface of the appliance body 10. As a result, the circuit unit 4 is arranged in the space on the right side inside the appliance body 10 (see Fig. 3).

[0049] Next, the operator houses the wireless communication unit 5 inside the appliance body 10. The wireless communication unit 5 is arranged in the space towards the rear in the front-rear direction, towards the right in the left-right direction, and near the center in the vertical direction inside the appliance body 10 (see Fig. 3). The wireless communication unit 5 is electrically connected to the control circuit 404 of the circuit unit 4 via, for example, a lead wire.

[0050] Then, the operator attaches the light source unit 2 to the housing 41 of the circuit unit 4. Further, the operator screws the heat dissipation member 21 to the wall of the appliance body 10 to thermally and mechanically couple the appliance body 10 and the heat dissipation member 21. As a result, the light source unit 2 is arranged below the wireless communication unit 5.

[0051] Subsequently, the operator houses the battery unit 3 in the space on the left side inside the appliance body 10. When the battery unit 3 is housed inside the appliance body 10, the connector portion 32 of the battery unit 3 (see Fig. 2) and the connector on the receiving side of the circuit unit 4 are electrically and mechanically connected.

[0052] Finally, the operator inserts a pair of mounting springs 13 into the insertion grooves provided in pairs on the front side and the rear side of the inner peripheral surface of the appliance body 10, thereby holding the cover 11 on the appliance body 10 so as to close the lower surface of the appliance body 10 (see Fig. 1). In this way, the assembly of the lighting fixture 1 is completed.

[0053] (4) Inspection operation Next, the inspection operation of the lighting fixture 1 will be described. For the emergency light, it is desirable to switch to emergency lighting once every six months and check (inspect) the lighting time (the time of emergency lighting). And as a result of the inspection, if it does not light up during an emergency, or if it goes out before the rated time (30 minutes or 60 minutes) of emergency lighting defined by law has elapsed, it is necessary to take appropriate measures, such as replacing the new battery 30. Below, the case where the inspection operation is performed by the wireless communication unit 5 receiving a wireless signal from an external device will be described as an example.

[0054] When the wireless communication unit 5 receives a wireless signal from an external device, the control circuit 404 controls the lighting circuit 402 according to the wireless signal and inspects the battery 30. The wireless signal includes an inspection start command for starting the inspection operation. In the inspection operation, the control circuit 404 controls the lighting circuit 402 to pass current through the LED module 20. Thereby, the control circuit 404 inspects whether there is an abnormality (capacity reduction) in the battery 30. The control circuit 404 causes the inspection result of the battery 30 to be transmitted to the external device by wireless signal from the wireless communication unit 5. The external device is, for example, an operator's smartphone, tablet terminal, or PC. Further, the external device may be an edge server provided in the facility where the lighting fixture 1 is installed, or a cloud server on the network.

[0055] That is, the circuit unit 4 further has a control circuit 404 that controls the lighting circuit 402 according to the wireless signal received by the wireless communication unit 5. And the control circuit 404 inspects the battery 30 according to the wireless signal received by the wireless communication unit 5, and causes the inspection result of the battery 30 to be transmitted by wireless signal from the wireless communication unit 5.

[0056] Note that the above-described inspection operation may be performed by an operator performing the inspection pressing the push button switch 406B, or by the operator operating a remote controller to transmit a wireless signal including an inspection start command, or may be automatically performed by the control circuit 404.

[0057] (5) Effects In the lighting fixture 1 according to the embodiment, the wireless communication unit 5 is disposed in a detachable region R1 which is a region where the battery unit 3 can be detached while the wireless communication unit 5 is held by the fixture main body 10. As a result, the battery unit 3 can be detached without removing the wireless communication unit 5, and thus, the workability when detaching the battery unit 3 from the fixture main body 10 can be improved.

[0058] Further, in the lighting fixture 1 according to the embodiment, the detachable region R1 is a region that overlaps with the light source unit 2 in a plan view from the detachment direction (vertical direction) of the cover 11 with respect to the fixture main body 10. Thereby, there is an advantage that the wireless communication unit 5 does not get in the way when the battery unit 3 is detached.

[0059] Further, in the lighting fixture 1 according to the embodiment, the wireless communication unit 5 has a housing 50 that houses the antenna 51 and the wireless communication circuit 52. As a result, the antenna 51 is not exposed outside the fixture main body 10, so that the design can be improved as compared with the case where the antenna is exposed outside the fixture main body 10.

[0060] Further, in the lighting fixture 1 according to the embodiment, the circuit unit 4 further has a control circuit 404 that controls the lighting circuit 402 according to the wireless signal received by the wireless communication unit 5. Thereby, the lighting circuit 402 can be remotely controlled using the wireless signal, so that the usability can be improved.

[0061] Further, in the lighting fixture 1 according to the embodiment, the control circuit 404 inspects the storage battery 30 according to the wireless signal. Thereby, the burden on the inspection work of the operator can be reduced.

[0062] In addition, in the lighting fixture 1 according to the embodiment, when the control circuit 404 inspects the storage battery 30, the control circuit 404 causes the wireless communication unit 5 to transmit the inspection result of the storage battery 30 by the wireless signal. Thereby, by causing the control circuit 404 to transmit the inspection result by the wireless signal from the wireless communication unit 5, it is possible to further reduce the burden on the operator's inspection work.

[0063] (6) Modification The above-described embodiment is merely one of various embodiments of the present disclosure. The above-described embodiment can be variously modified according to design and the like as long as the object of the present disclosure can be achieved. Hereinafter, modifications of the above-described embodiment will be listed. The modifications described below can be applied in appropriate combinations.

[0064] (6.1) Modification 1 In the above-described embodiment, the detachable region R1 is a region that overlaps the light source unit 2 in a plan view from the vertical direction, which is the detachable direction of the cover 11 with respect to the appliance main body 10. On the other hand, in the lighting fixture 1A according to Modification 1, as shown in FIG. 5, the detachable region R1 is the internal space of the housing 41 of the circuit unit 4. That is, the circuit unit 4 further has a housing 41 that houses the lighting circuit 402 (see FIG. 4). And the detachable region R1 is the internal space of the housing 41. Note that other configurations are the same as those of the lighting fixture 1 according to the above-described embodiment.

[0065] In the lighting fixture 1A according to Modification 1, since the wireless communication unit 5 is disposed in the internal space of the housing 41 of the circuit unit 4, the wireless communication unit 5 does not get in the way when the battery unit 3 is removed from the appliance main body 10. Thereby, it becomes possible to remove the battery unit 3 from the appliance main body 10 without removing the wireless communication unit 5, and as a result, it becomes possible to improve the workability when removing the battery unit 3 from the appliance main body 10.

[0066] (6.2) Modification 2 In the above-described embodiment, the detachable region R1 is a region that overlaps with the light source unit 2 in a plan view from the vertical direction, which is the attaching / detaching direction of the cover 11 with respect to the instrument body 10. On the other hand, in the lighting fixture 1B according to the second modification, as shown in FIG. 6, the detachable region R1 is a region that overlaps with the circuit unit 4 in a plan view from the attaching / detaching direction (vertical direction) of the cover 11 with respect to the instrument body 10 (the region indicated by the dashed-dotted line in FIG. 6). Note that the other configurations are the same as those of the lighting fixture 1 according to the above-described embodiment.

[0067] In the lighting fixture 1B according to the second modification, since the wireless communication unit 5 is disposed in a region that overlaps with the circuit unit 4 in a plan view from the vertical direction, the wireless communication unit 5 does not get in the way when the battery unit 3 is removed from the instrument body 10. As a result, it becomes possible to remove the battery unit 3 from the instrument body 10 without removing the wireless communication unit 5, and thus, it becomes possible to improve the workability when removing the battery unit 3 from the instrument body 10.

[0068] (6.3) Second Modification In the above-described embodiment, the detachable region R1 is a region that overlaps with the light source unit 2 in a plan view from the vertical direction, which is the attaching / detaching direction of the cover 11 with respect to the instrument body 10. On the other hand, in the lighting fixture 1C according to the third modification, as shown in FIG. 7, the detachable region R1 is a region on the side opposite to the cover 11 side in the attaching / detaching direction (vertical direction) of the cover 11 with respect to the instrument body 10, with respect to the battery unit 3. Note that the other configurations are the same as those of the lighting fixture 1 according to the above-described embodiment.

[0069] In the lighting fixture 1C according to Modification 3, since the wireless communication unit 5 is disposed in a region (upper region) on the side opposite to the cover 11 side in the vertical direction with respect to the battery unit 3, the wireless communication unit 5 does not get in the way when removing the battery unit 3 from the fixture body 10. As a result, it becomes possible to remove the battery unit 3 from the fixture body 10 without removing the wireless communication unit 5, and as a result, it becomes possible to improve the workability when removing the battery unit 3 from the fixture body 10.

[0070] (6.4) Modification 4 In the above-described embodiment, the lighting fixture 1 is a ceiling-embedded emergency light. On the other hand, as shown in FIG. 8, the lighting fixture 1D according to Modification 4 is a surface-mounted emergency light directly attached to the ceiling. Hereinafter, the lighting fixture 1D according to Modification 4 will be described with reference to FIG. 8. Regarding the lighting fixture 1D according to Modification 4, the same components as those of the lighting fixture 1 (FIGS. 1 to 4) according to the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0071] As shown in FIG. 8, the lighting fixture 1D according to Modification 4 includes a disk-shaped fixture body 14 and a conical frustum-shaped cover 15. The fixture body 14 is screwed and directly attached to the ceiling. A circular window hole 150 is provided at the center of the bottom surface 151 of the cover 15. In a state where the lighting fixture 1 is assembled, the lens portion 220 of the light source unit 2 is inserted through the window hole 150.

[0072] Further, in the lighting fixture 1D according to Modification 4, four holes (first hole 111D, second hole 112D, third hole 113D, fourth hole 114D) are provided in the vicinity of the window hole 150 in the cover 15 so as to be arranged in two vertical and horizontal rows. The first hole 111D corresponds to the above-described first hole 111, and the second hole 112D corresponds to the above-described second hole 112. Further, the third hole 113D corresponds to the above-described third hole 113, and the fourth hole 114D corresponds to the above-described fourth hole 114.

[0073] Here, the detachable area R1 where the wireless communication unit 5 is disposed may be an area that overlaps with the light source unit 2 (see FIG. 3) or an area that overlaps with the circuit unit 4 (see FIG. 6) in a plan view from the detachment direction of the cover 15 with respect to the instrument main body 14. Further, the detachable area R1 may be the internal space of the housing 41 of the circuit unit 4 (see FIG. 5). Furthermore, the detachable area R1 may be an area on the side opposite to the cover 15 side in the detachment direction (vertical direction) of the cover 15 with respect to the instrument main body 14 with respect to the battery unit 3 (see FIG. 7).

[0074] Also in the lighting fixture 1D according to the fourth modification, it is possible to remove the battery unit 3 from the instrument main body 14 without removing the wireless communication unit 5, and as a result, it is possible to improve the workability when removing the battery unit 3 from the instrument main body 14.

[0075] (6.5) Other modifications Hereinafter, other modifications will be listed.

[0076] In the above-described embodiment, the lighting fixture 1 is a dedicated emergency lighting fixture that only performs emergency lighting, but it may be a combined type emergency lighting fixture with a built-in battery that performs both normal lighting and emergency lighting. Alternatively, the lighting fixture 1 may be a type of emergency lighting fixture having two or more light sources, and may be an incorporated type emergency lighting fixture in which one or more light sources are lit by an emergency power source and the other light sources are lit by a normal power source.

[0077] In the above-described embodiment, the lighting fixture 1 is an emergency lamp, but the lighting fixture is not limited to an emergency lamp, and may be, for example, an emergency lighting fixture other than an emergency lamp such as an induction lamp, or a lighting fixture for general lighting such as a so-called downlight. Further, the lighting fixture may be a staircase passage induction lamp installed on the road surface of a staircase or on a wall facing a dance floor.

[0078] In the above-described embodiment, in the inspection operation, the control circuit 404 lights the LED module 20 with the charging power charged in the storage battery 30. However, for example, the above charging power may be consumed by a dummy load. The dummy load includes, for example, at least one of a resistor and a diode. Further, the dummy load may be a light source different from the LED module 20. In this case, it is preferable that the other light source is covered with a case or the like so that the light emitted from the other light source does not leak to the outside.

[0079] The wireless communication unit 5 may be detachable from the appliance main body 10 or may be fixed to the appliance main body 10.

[0080] (Aspect) The following aspects are disclosed in this specification.

[0081] The lighting fixture (1; 1A to 1D) according to the first aspect includes a light source unit (2), a battery unit (3), a circuit unit (4), a wireless communication unit (5), an appliance main body (10; 14), and a cover (11; 15). The light source unit (2) has a light source (20). The battery unit (3) has a storage battery (30). The circuit unit (4) has a lighting circuit (402) that lights the light source (20) with the charging power charged in the storage battery (30). The wireless communication unit (5) performs wireless communication using radio waves as a medium. The appliance main body (10; 14) holds the light source unit (2), the battery unit (3), the circuit unit (4), and the wireless communication unit (5). The cover (11; 15) is detachably attached to the appliance main body (10; 14) so as to cover the battery unit (3), the circuit unit (4), and the wireless communication unit (5). The wireless communication unit (5) is disposed in a detachable region (R1) that is a region where the battery unit (3) can be detached while the wireless communication unit (5) is held by the appliance main body (10; 14).

[0082] According to this aspect, it is possible to improve the workability when removing the battery unit (3) from the appliance main body (10; 14).

[0083] In the lighting fixture (1) according to the second aspect, in the first aspect, the detachable region (R1) is a region that overlaps with the light source unit (2) in a plan view from the detachment direction of the cover (11) with respect to the fixture body (10).

[0084] According to this aspect, there is an advantage that the wireless communication unit (5) does not get in the way when removing the battery unit (3) from the fixture body (10).

[0085] In the lighting fixture (1A) according to the third aspect, in the first aspect, the circuit unit (4) further has a housing (41) that houses the lighting circuit (402). The detachable region (R1) is the internal space of the housing (41).

[0086] According to this aspect, there is an advantage that the wireless communication unit (5) does not get in the way when removing the battery unit (3) from the fixture body (10).

[0087] In the lighting fixture (1B) according to the fourth aspect, in the first aspect, the detachable region (R1) is a region that overlaps with the circuit unit (4) in a plan view from the detachment direction of the cover (11) with respect to the fixture body (10).

[0088] According to this aspect, there is an advantage that the wireless communication unit (5) does not get in the way when removing the battery unit (3) from the fixture body (10).

[0089] In the lighting fixture (1C) according to the fifth aspect, in the first aspect, the detachable region (R1) is a region on the side opposite to the cover (11) side in the detachment direction of the cover (11) with respect to the fixture body (10) with respect to the battery unit (3).

[0090] According to this aspect, there is an advantage that the wireless communication unit (5) does not get in the way when removing the battery unit (3) from the fixture body (10).

[0091] In the lighting fixture (1; 1A to 1D) according to the sixth aspect, in any one of the first to fifth aspects, the wireless communication unit (5) includes an antenna (51), a wireless communication circuit (52), and a housing (50). The wireless communication circuit (52) transmits and receives wireless signals via the antenna (51). The housing (50) houses the antenna (51) and the wireless communication circuit (52).

[0092] According to this aspect, since the antenna (51) is not exposed outside the fixture body (10), it is possible to improve the designability as compared with the case where the antenna is exposed outside the fixture body (10).

[0093] In the lighting fixture (1; 1A to 1D) according to the seventh aspect, in the sixth aspect, the circuit unit (4) further includes a control circuit (404) that controls the lighting circuit (402) according to the wireless signal received by the wireless communication unit (5).

[0094] According to this aspect, since the lighting circuit (402) can be remotely controlled using the wireless signal, it is possible to improve the usability.

[0095] In the lighting fixture (1; 1A to 1D) according to the eighth aspect, in the seventh aspect, the control circuit (404) inspects the storage battery (30) according to the wireless signal.

[0096] According to this aspect, it is possible to reduce the burden on the operator's inspection work.

[0097] In the lighting fixture (1) according to the ninth aspect, in the eighth aspect, when the control circuit (404) performs the inspection of the storage battery (30), the control circuit (404) causes the wireless communication unit (5) to transmit the result of the inspection of the storage battery (30) by the wireless signal.

[0098] According to this aspect, by causing the control circuit (404) to transmit the inspection result by the wireless signal from the wireless communication unit (5), it is possible to further reduce the burden on the operator's inspection work.

[0099] Regarding the configurations according to the second to ninth aspects, they are not essential configurations of the lighting fixture (1; 1A to 1D) and can be omitted as appropriate.

Explanation of Reference Signs

[0100] 1, 1A, 1B, 1C, 1D Lighting fixture 2 Light source unit 3 Battery unit 4 Circuit unit 5 Wireless communication unit 10, 14 Appliance body 11, 15 Cover 20 LED module (light source) 30 Rechargeable battery 41 Housing 402 Lighting circuit 404 Control circuit R1 Detachable area

Claims

1. A light source unit having a light source, A battery unit having a storage battery, A circuit unit having a lighting circuit for lighting the light source with the charging power charged in the storage battery, A wireless communication unit for performing wireless communication using radio waves as a medium, An instrument body that holds the light source unit, the circuit unit, and the wireless communication unit, and removably holds the battery unit, A cover that is removably attached to the instrument body so as to cover the battery unit, the circuit unit, and the wireless communication unit, The wireless communication unit is disposed in a detachable region that is a region where the battery unit can be detached while the wireless communication unit is held by the instrument body. A lighting fixture.

2. The detachable region is a region that overlaps with the light source unit in a plan view from the detachment / attachment direction of the cover with respect to the instrument body. The lighting fixture according to Claim 1.

3. The circuit unit further has a housing that houses the lighting circuit, The detachable region is the internal space of the housing. The lighting fixture according to Claim 1.

4. The detachable region is a region that overlaps with the circuit unit in a plan view from the detachment / attachment direction of the cover with respect to the instrument body. The lighting fixture according to Claim 1.

5. The detachable region is a region on the side opposite to the cover side in the detachment / attachment direction of the cover with respect to the instrument body with respect to the battery unit. The lighting fixture according to Claim 1.

6. The wireless communication unit, An antenna, A wireless communication circuit for transmitting and receiving wireless signals via the antenna, And a housing that houses the antenna and the wireless communication circuit. The lighting fixture according to any one of Claims 1 to 5.

7. The circuit unit further has a control circuit that controls the lighting circuit according to the wireless signal received by the wireless communication unit. The lighting fixture according to Claim 6.

8. The control circuit checks the storage battery according to the wireless signal. The lighting fixture according to Claim 7.

9. When the control circuit performs the check of the storage battery, the control circuit causes the result of the check of the storage battery to be transmitted by the wireless signal from the wireless communication unit. The lighting fixture according to Claim 8.

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