Lighting device

Abstract

In view of the foregoing, it is an object of the present disclosure to stabilize an electrical connection of a separate unit.SOLUTION: The lighting device 1 includes a fixture body 20, a light source unit 3, an electrical connection part 5, and a mechanical connection part 6. The light source unit 3 includes a light source 31. The light source unit 3 is held by the fixture body 20. The electrical connector 5 is held by the fixture body 20. The electrical connection part 5 can be electrically connected to a separate unit 9 facing the fixture body 20 in a direction along an emission direction of light from the light source 31. The mechanical connector 6 is provided separately from the electrical connector 5, and is held by the fixture body 20. The mechanical connection portion 6 is mechanically connectable to the separate unit 9. The mechanical connection part 6 has a restraining part for restraining the separate unit 9 from falling off from the fixture body 20.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure generally relates to a lighting device, and more particularly to a lighting device that includes a light source unit and is capable of mounting a separate unit that is an additional configuration separate from the light source unit. [Background technology]

[0002] The lighting fixture described in Patent Document 1 includes a fixture body, a power supply device, and a wireless module. The power supply device is electrically connected to the fixture body via an electric wire. The power supply device includes a socket to which the wireless module can be attached and detached. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-140140 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to provide a lighting device that allows a separate unit to be attached to a fixture body and that can stabilize the electrical connection state of the separate unit. [Means for solving the problem]

[0005] A lighting device according to one aspect of the present disclosure includes a fixture body, a light source unit, an electrical connection portion, and a mechanical connection portion. The light source unit includes a light source. The light source unit is held by the fixture body. The electrical connection portion is held by the fixture body. The electrical connection portion is electrically connectable to a separate unit facing the fixture body in a direction along the emission direction of light from the light source. The mechanical connection portion is provided separately from the electrical connection portion and held by the fixture body. The mechanical connection portion is mechanically connectable to the separate unit. The mechanical connection portion has a suppression portion that suppresses the separate unit from falling off the fixture body. [Effects of the Invention]

[0006] The present disclosure has the advantage that a separate unit can be attached to the appliance main body and the electrical connection state of the separate unit can be stabilized. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of an illumination device according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view of the lighting device. [Figure 3] FIG. 3 is a block diagram of the lighting device. [Figure 4] FIG. 4 is a perspective view showing a state in which the separate unit is removed from the lighting device. [Figure 5] FIG. 5 is a front cross-sectional view schematically illustrating a state in which the separate unit is removed from the lighting device. [Figure 6] FIG. 6 is a side cross-sectional view schematically illustrating a state in which the separate unit is removed from the lighting device. [Figure 7] FIG. 7 is a side cross-sectional view that schematically shows a state in which a separate unit is attached to the lighting device of the same. [Figure 8] FIG. 8 is a block diagram of a separate unit of an illumination device according to the first modification. DETAILED DESCRIPTION OF THE INVENTION

[0008] (Embodiment) The lighting device 1 according to the embodiment will be described below with reference to the drawings. However, the embodiment described below is merely one of various embodiments of the present disclosure. The embodiment described below can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. Furthermore, each diagram described in the embodiment described below is a schematic diagram, and the ratios of the sizes and thicknesses of the components in the diagram do not necessarily reflect the actual dimensional ratios.

[0009] In each drawing, the X-axis direction is defined as the left-right direction, the Y-axis direction as the front-rear direction (depth direction), and the Z-axis direction as the up-down direction. Furthermore, the positive direction in the X-axis direction is defined as the right, the positive direction in the Y-axis direction as the front, and the positive direction in the Z-axis direction as the up. However, these directions are merely examples and are not intended to limit the directions in which the lighting device 1 is used. Furthermore, the arrows indicating the various directions in the drawings are merely shown for explanatory purposes and do not have any substance.

[0010] (overview) As shown in FIGS. 1 to 4 , the lighting device 1 of this embodiment includes a fixture body 20, a light source unit 3, an electrical connection portion 5, and a mechanical connection portion 6. The light source unit 3 includes a light source 31. The light source unit 3 is held by the fixture body 20. The electrical connection portion 5 is held by the fixture body 20. The electrical connection portion 5 is electrically connectable to a separate unit 9 that faces the fixture body 20 in a direction along the emission direction of light from the light source 31. The mechanical connection portion 6 is provided separately from the electrical connection portion 5 and is held by the fixture body 20. The mechanical connection portion 6 is mechanically connectable to the separate unit 9. The mechanical connection portion 6 has a prevention portion 6p that prevents the separate unit 9 from falling off from the fixture body 20.

[0011] According to the above configuration, the attachment unit 9 can be attached to the appliance body 20.

[0012] For example, when the fixture body 20 is attached to a ceiling, if the lighting device 1 does not have the electrical connection part 5 and the mechanical connection part 6, ceiling construction is required to attach the separate unit 9 to the ceiling. In contrast, if the lighting device 1 has the electrical connection part 5 and the mechanical connection part 6, ceiling construction is not required when installing the separate unit 9, and the separate unit 9 can be installed easily.

[0013] Furthermore, the electrical connection state between the separate unit 9 and the electrical connection portion 5 can be stabilized compared to when the electrical connection portion 5 and the mechanical connection portion 6 are realized with a single configuration. Furthermore, the electrical connection state between the separate unit 9 and the electrical connection portion 5 can be stabilized compared to when the mechanical connection portion 6 does not have the suppression portion 6p.

[0014] (detail) (1) Overall structure In the following, as an example, the lighting device 1 will be described as a device that is directly attached to a ceiling (construction material). However, the lighting device 1 may be embedded in a ceiling, directly attached to a wall, or embedded in a wall.

[0015] Hereinafter, the direction in which light is emitted from the light source 31 is referred to as the downward direction. The direction opposite to the emission direction is referred to as the upward direction. However, the upward and downward directions in this disclosure merely indicate relative directions and are not intended to limit the directions in which the lighting device 1 is used.

[0016] In the following, as an example, a description will be given assuming that the lighting device 1 is a device that receives AC power from an AC power source 7. The AC power source 7 is, for example, a commercial power source.

[0017] As shown in FIGS. 2 and 3, the lighting device 1 includes a main unit 2, a light source unit 3, a connection portion 4, and a separate unit 9. As shown in FIG. 4, the connection portion 4 has an electrical connection portion 5 and a mechanical connection portion 6. The connection portion 4 is held by the main unit 2. The separate unit 9 is electrically and mechanically connected to the main unit 2 via the connection portion 4. The separate unit 9 is detachable from the main unit 2 via the connection portion 4. The light source unit 3 is detachable from the main unit 2.

[0018] The additional unit 9 has a functional section 94 that realizes a predetermined function using the power received from the main unit 2. As an example, the functional section 94 includes an AC outlet and can supply the power received from the main unit 2 to an electrical device 8 electrically connected to the AC outlet.

[0019] (2) Main unit As shown in FIGS. 1 to 3, the main unit 2 has an appliance main body 20, a terminal block 21, and an AC / DC converter 22.

[0020] The fixture body 20 has a box-like shape that is long in one direction. The fixture body 20 is directly attached to the underside of a ceiling. The light source unit 3 is attached to the underside 204 of the fixture body 20. The fixture body 20 includes a pair of reflectors 201 that protrude obliquely upward from the location where the light source unit 3 is attached, and a pair of end plates 202 that are provided on both ends of the pair of reflectors 201 in the longitudinal direction. The fixture body 20 also includes an insertion hole 203 (see FIG. 2) into which a power line W1 that transmits power from an AC power source 7 (see FIG. 3) is inserted.

[0021] The terminal block 21 is housed in the fixture body 20. The terminal block 21 is held by the fixture body 20. The power supply line W1 is electrically and mechanically connected to the terminal block 21.

[0022] Furthermore, power supply lines W2 and W3 are electrically and mechanically connected to the terminal block 21. The power supply line W2 electrically connects the AC / DC converter 22 and the power supply line W1. The power supply line W3 electrically connects the electrical connection portion 5 and the power supply line W1.

[0023] The power line W1 is an example of a conductor that electrically connects the AC power supply 7 and the light source 31. The electrical connection part 5 is electrically connected to the power line W1.

[0024] The AC / DC converter 22 is housed in the fixture body 20. The AC / DC converter 22 is electrically connected to the light source 31 of the light source unit 3. The AC / DC converter 22 converts AC power supplied from the power line W2 into DC power and supplies this DC power to the light source 31. This causes the light source 31 to light up.

[0025] (3) Light source unit 2, the light source unit 3 includes a light source 31 and a cover 32. The light source 31 includes a plurality of light-emitting elements 311 and a substrate 312.

[0026] The plurality of light-emitting elements 311 are mounted on a substrate 312. Each of the plurality of light-emitting elements 311 is, for example, a light-emitting diode element. Each of the plurality of light-emitting elements 311 emits light upon receiving a supply of power. The light emitted by the plurality of light-emitting elements 311 is emitted downward.

[0027] The cover 32 is translucent. The cover 32 is made of a synthetic resin such as an acrylic resin or a polycarbonate resin. The cover 32 has a semi-cylindrical shape (see FIG. 1). The cover 32 covers the light source 31. More specifically, the cover 32 is disposed below the light source 31 and covers the light source 31 from below.

[0028] (4) Connection The connection part 4 is held by the device body 20. FIGS. 4 to 7 show examples of the configuration of the connection part 4. The connection part 4 has a pair of electrical connection parts 5 and a pair of mechanical connection parts 6.

[0029] Each of the pair of electrical connection parts 5 is housed in a recess 205 provided in the lower surface 204 of the fixture body 20. The electrical connection parts 5 include a conductor. The electrical connection parts 5 have, for example, a U-shaped cross section and sandwich a conductor plate (a power receiving part 92 described below) inserted into the recess 205.

[0030] Each of the pair of mechanical connection parts 6 has a recess 61 provided on the lower surface 204 of the instrument body 20 and a protrusion 62 protruding from the inner surface of the recess 61. The pair of mechanical connection parts 6 are integrally formed with the instrument body 20 and are thereby held by the instrument body 20.

[0031] The arrangement of the pair of recesses 205 and the pair of recesses 61 in this embodiment is as shown in Fig. 4. However, in Figs. 5 to 7, for the sake of simplicity, unlike Fig. 4, the pair of recesses 205 and the pair of recesses 61 are depicted as being on the same plane.

[0032] The light source unit 3 and the mechanical connection portion 6 are arranged on the same surface of the fixture body 20, that is, on the lower surface 204 of the fixture body 20 (see FIG. 2).

[0033] The light source unit 3 and the electrical connection portion 5 are aligned in the longitudinal direction of the fixture body 20. Furthermore, the light source unit 3 and the mechanical connection portion 6 are aligned in the longitudinal direction of the fixture body 20.

[0034] (5) Separate unit As shown in FIGS. 3 to 7, the additional unit 9 has a housing 91, a pair of power receiving portions 92, a protection circuit 93, a functional portion 94, and a pair of mounting portions 95.

[0035] The housing 91 has electrical insulation properties. A pair of power receiving portions 92 and a pair of mounting portions 95 protrude from the top surface of the housing 91.

[0036] Each of the pair of power receiving portions 92 includes a conductive plate.

[0037] The pair of mounting portions 95 are arranged at a distance from each other in the front-rear direction. Each of the pair of mounting portions 95 has a claw portion 951. The claw portion 951 is a protrusion that protrudes in the front-rear direction. The shape of the claw portion 951 is such that it can be hooked onto the protrusion 62 of the mechanical connection portion 6. More specifically, the shape of the claw portion 951 is triangular when viewed from the left-right direction.

[0038] Each of the pair of mounting portions 95 has a release portion 952. The release portion 952 protrudes in the front-rear direction from the housing 91. When an operator operates (applies force to) the release portion 952, the mounting portion 95 moves in the front-rear direction.

[0039] The mechanical connection portion 6 and the separate unit 9 are mechanically connected by fitting together. That is, the mechanical connection portion 6 fits together with the separate unit 9.

[0040] The pair of mounting portions 95 correspond one-to-one to the pair of mechanical connection portions 6. The mechanical connection portions 6 and the separate unit 9 are mechanically connected by fitting the corresponding mounting portions 95 and the mechanical connection portions 6 together.

[0041] Furthermore, the pair of power receiving portions 92 correspond one-to-one to the pair of electrical connection portions 5. The power receiving portions 92 and the electrical connection portions 5 corresponding to each other are electrically connected.

[0042] To mechanically connect the separate unit 9 to the mechanical connection part 6, first, as shown in FIG. 7 , each of the pair of mounting parts 95 is inserted into the corresponding recess 61 of the mechanical connection part 6. The claw part 951 of the mounting part 95 is hooked onto the protrusion 62 of the mechanical connection part 6. This prevents the separate unit 9 from falling off. The protrusion 62 is an example of a prevention part 6p that prevents the separate unit 9 from falling off the appliance main body 20.

[0043] In this way, the separate unit 9 can be mechanically connected to the mechanical connection portion 6. When the separate unit 9 is mechanically connected to the mechanical connection portion 6, each of the pair of power receiving portions 92 is inserted into the recess 205 in which the corresponding electrical connection portion 5 is provided and comes into contact with the corresponding electrical connection portion 5, thereby electrically connecting the power receiving portions 92 to the electrical connection portion 5.

[0044] The attachment unit 9 can be attached to the electrical connection portion 5 and the mechanical connection portion 6 without using any tools, which simplifies the attachment process.

[0045] When the separate unit 9 is not mechanically connected to the mechanical connection portion 6, the electrical connection portion 5 is provided in a position that is not exposed to the outside. Specifically, the electrical connection portion 5 is a female terminal provided in the recess 205, so that the electrical connection portion 5 is not exposed to the outside, and the electrical connection portion 5 is prevented from coming into contact with the fingers of an operator or the like.

[0046] Operating the release portion 952 releases the mechanical connection between the separate unit 9 and the mechanical connection portion 6. More specifically, when the release portion 952 is operated, the claw portion 951 moves and the engagement between the claw portion 951 and the protrusion 62 is released, making it possible to remove the attachment portion 95 from the recess 61 of the mechanical connection portion 6.

[0047] A functional section 94 is provided on the underside of the housing 91. As an example, the functional section 94 includes an AC outlet. The outlet plug of the electrical device 8 can be connected to the AC outlet of the functional section 94. The AC outlet has a pair of holes 941 and a pair of blade holders 942 that are provided deep inside the pair of holes 941 and hold the blades of the outlet plug (see FIG. 2).

[0048] 3, a protection circuit 93 is provided between the power receiving unit 92 and the functional unit 94. That is, the power receiving unit 92 and the functional unit 94 are electrically connected via the protection circuit 93. Power received by the power receiving unit 92 is supplied to the functional unit 94 via the protection circuit 93.

[0049] The protection circuit 93 is housed in the housing 91. The protection circuit 93 limits the current flowing through the functional unit 94. For example, when the current flowing through the functional unit 94 exceeds a threshold value, the protection circuit 93 cuts off the current.

[0050] The threshold value is, for example, a value corresponding to an overcurrent. In this case, the flow of an overcurrent to the functional unit 94 can be suppressed.

[0051] Alternatively, the threshold value does not have to be a value corresponding to an overcurrent. Even in this case, the protection circuit 93 cuts off the current when the current flowing through the functional unit 94 exceeds the threshold value, thereby preventing the total current consumed by the electrical device 8 connected to the separate unit 9 and the light source unit 3 from becoming too large. Therefore, for example, it is possible to prevent a breaker provided between the AC power supply 7 and the lighting device 1 from tripping.

[0052] Thus, the separate unit 9 has a power receiving unit 92 that receives power from the electrical connection unit 5, a functional unit 94 that realizes a predetermined function using the power received by the power receiving unit 92, and a protection circuit 93 that limits the current flowing through the functional unit 94. The power receiving unit 92 and the functional unit 94 are electrically connected via the protection circuit 93.

[0053] In the present disclosure, the downward direction is defined as the direction away from the light source unit 3 along the direction of light emission from the light source 31. As shown in FIG. 2 , the light source unit 3 and the separate unit 9 are disposed below the fixture body 20.

[0054] The light source unit 3 includes a light-transmitting cover 32 that covers the light source 31, and as shown in Fig. 2, the lower end of the cover 32 is located lower than the lower end of the separate unit 9. This reduces the possibility that the light emitted from the light source 31 will be blocked by the separate unit 9, and prevents a decrease in light extraction efficiency.

[0055] The length L1 of the gap between the separate unit 9 and the light source unit 3 in the direction perpendicular to the direction in which light is emitted from the light source 31 is preferably 1 mm or less, which can prevent foreign objects such as insects from entering the gap.

[0056] Furthermore, it is preferable that the length L2 of the gap between the separate unit 9 and the fixture body 20 in the direction of light emission from the light source 31 is 1 mm or less, which can prevent foreign objects such as insects from entering the gap.

[0057] (Variation 1) The lighting device 1 according to the first modification will be described below with reference to Fig. 8. Hereinafter, the configuration of the above-described embodiment will be referred to as the basic example. The same components as those in the basic example will be assigned the same reference numerals and descriptions thereof will be omitted.

[0058] In this modification, the configuration of the separate unit 9A differs from the configuration of the separate unit 9 of the basic example. More specifically, the separate unit 9A further includes a storage battery 99 and an AC / DC converter 100 in addition to the configuration of the separate unit 9 of the basic example. Furthermore, the functional unit 94 includes a DC outlet. The DC outlet is, for example, a USB outlet.

[0059] The additional unit 9A includes a power receiving unit 92, an AC / DC converter 100, a storage battery 99, a protection circuit 93, and a functional unit 94.

[0060] The power receiving unit 92 receives power from the electrical connection unit 5. The functional unit 94 realizes a predetermined function using the power received by the power receiving unit 92. An AC / DC converter 100, a storage battery 99, and a protection circuit 93 are electrically connected between the power receiving unit 92 and the functional unit 94.

[0061] The storage battery 99 stores electric power. The power receiving unit 92 and the function unit 94 are electrically connected via the storage battery 99.

[0062] The AC / DC converter 100 is electrically connected between the power receiving unit 92 and the storage battery 99 , converts the AC power received by the power receiving unit 92 into DC power, and supplies the DC power to the storage battery 99 .

[0063] The protection circuit 93 is electrically connected between the storage battery 99 and the functional unit 94 and limits the direct current flowing through the functional unit 94 .

[0064] When power is supplied from the AC power source 7 to the power receiving unit 92 via the electrical connection unit 5, the storage battery 99 can store the power. At this time, the storage battery 99 also supplies power to the functional unit 94.

[0065] Even if the supply of power from the AC power supply 7 to the electrical connection unit 5 is stopped, the storage battery 99 can supply the power stored in the storage battery 99 to the functional unit 94.

[0066] (Other Modifications of the Embodiments) Other variations of the embodiment are listed below. The following variations may be implemented in appropriate combination. The following variations may also be implemented in appropriate combination with the above-described variation 1.

[0067] In a basic example, the functional unit 94 may include a DC outlet such as a USB outlet. The additional unit 9 may include an AC / DC converter for converting AC power received by the power receiving unit 92 into DC power to be output from the DC outlet of the functional unit 94.

[0068] In variant example 1 (see FIG. 8), functional section 94 may include an AC outlet, and separate unit 9A may be equipped with an inverter that converts DC power output from storage battery 99 into AC power and outputs the AC power to the AC outlet.

[0069] The functional unit 94 may include a configuration other than a power outlet, such as a touch switch, as a wiring device for supplying power to an external device.

[0070] The functional unit 94 is not limited to a configuration including a wiring device such as a DC outlet or an AC outlet. The functional unit 94 may include, for example, a transmitting device that transmits a wireless signal or a receiving device that receives a wireless signal. The wireless signal may be, for example, a Wi-Fi (registered trademark) signal or a Bluetooth (registered trademark) signal. As the Bluetooth signal, for example, a signal conforming to the BLE (Bluetooth Low Energy) standard is used. Furthermore, the wireless signal may be, for example, a signal used as a beacon signal. The lighting device 1 may be used together with a positioning system that measures the position of a wireless signal receiving device or transmitting device carried by a user based on the wireless signal.

[0071] The functional unit 94 may include a sensor, such as a temperature sensor, a humidity sensor, an illuminance sensor, a human presence sensor, or a camera.

[0072] The functional unit 94 may include a light source. The light source may be a light source for illumination, or may be a light source such as a pilot lamp for indication.

[0073] The functional unit 94 may include an acoustic device such as a speaker.

[0074] The additional unit 9 may have a plurality of functional parts 94 .

[0075] The electrical connection portion 5 and the mechanical connection portion 6 may be connectable to any optional additional unit 9 out of a plurality of additional units 9 each including a different type of functional portion 94 .

[0076] The power source that supplies power to the electrical connection portion 5 may be a DC power source instead of the AC power source 7.

[0077] In the first modification (see FIG. 8), the protection circuit 93 may be electrically connected between the power receiving unit 92 and the AC / DC converter 100, for example.

[0078] The electrical connection unit 5 may be a magnetic outlet. That is, the power receiving unit 92 may be configured to be attracted to the electrical connection unit 5 by magnetic force.

[0079] The electrical connection portion 5 may be provided at the tip of a cable electrically connected to the terminal block 21.

[0080] The separate unit 9 may have a structure in which it engages with the mechanical connection portion 6 by rotation, and is mechanically connected to the mechanical connection portion 6. Alternatively, the separate unit 9 may have a structure in which it engages with the mechanical connection portion 6 by movement in a direction perpendicular to the up-down direction, and is mechanically connected to the mechanical connection portion 6.

[0081] The connection part 4 in the basic example is integrated with the device body 20. However, the connection part 4 may be detachable from the device body 20.

[0082] The lighting device 1 may include only one pair of the electrical connection portion 5 and the mechanical connection portion 6, or may include multiple pairs.

[0083] (summary) The above-described embodiments and the like disclose the following aspects.

[0084] The lighting device (1) according to the first aspect includes a fixture body (20), a light source unit (3), an electrical connection portion (5), and a mechanical connection portion (6). The light source unit (3) includes a light source (31). The light source unit (3) is held by the fixture body (20). The electrical connection portion (5) is held by the fixture body (20). The electrical connection portion (5) is electrically connectable to a separate unit (9; 9A) facing the fixture body (20) in a direction along the emission direction of light from the light source (31). The mechanical connection portion (6) is provided separately from the electrical connection portion (5) and is held by the fixture body (20). The mechanical connection portion (6) is mechanically connectable to the separate unit (9; 9A). The mechanical connection portion (6) has a prevention portion (6p) that prevents the separate unit (9; 9A) from falling off from the fixture body (20).

[0085] According to the above configuration, the separate unit (9; 9A) can be attached to the appliance body (20). Furthermore, compared to when the electrical connection part (5) and the mechanical connection part (6) are realized as a single component, the electrical connection state between the separate unit (9; 9A) and the electrical connection part (5) can be stabilized.

[0086] The lighting device (1) according to the second aspect is the lighting device (1) of the first aspect, further including a conductor (power line (W1)) that electrically connects a power source (AC power source (7)) and the light source (31). The electrical connection part (5) is electrically connected to the conductor (power line (W1)).

[0087] According to the above configuration, power can be supplied to the separate unit (9; 9A) via the electrical connection part (5).

[0088] In addition, in the lighting device (1) according to the third aspect, when the separate unit (9; 9A) is not mechanically connected to the mechanical connection part (6) in the first or second aspect, the electrical connection part (5) is provided in a position that is not exposed to the outside.

[0089] According to the above configuration, the electrical connection portion (5) is not exposed, so that the possibility of an operator accidentally touching the electrical connection portion (5) when attaching the separate unit (9; 9A) to the appliance body (20) is reduced.

[0090] Furthermore, the lighting device (1) according to a fourth aspect is any one of the first to third aspects, and further includes a separate unit (9; 9A). The separate unit (9; 9A) includes a power receiving unit (92) that receives power from the electrical connection unit (5), a functional unit (94) that realizes a predetermined function using the power received by the power receiving unit (92), and a protection circuit (93) that limits the current flowing through the functional unit (94). The power receiving unit (92) and the functional unit (94) are electrically connected via the protection circuit (93).

[0091] According to the above configuration, it is possible to prevent the current supplied to the lighting device (1) from becoming too large.

[0092] Furthermore, the lighting device (1) according to a fifth aspect is the lighting device (1) of any one of the first to fourth aspects, further including a separate unit (9A). The separate unit (9A) includes a power receiving unit (92) that receives power from the electrical connection unit (5), a functional unit (94) that realizes a predetermined function using the power received by the power receiving unit (92), and a storage battery (99). The power receiving unit (92) and the functional unit (94) are electrically connected via the storage battery (99).

[0093] According to the above configuration, even when power is not supplied to the lighting device (1) from the outside due to a power outage or the like, the function unit (94) can perform a predetermined function.

[0094] In addition, in the lighting device (1) according to a sixth aspect, in any one of the first to fifth aspects, the direction away from the light source unit (3) along the emission direction is defined as downward. The light source unit (3) further includes a light-transmitting cover (32) that covers the light source (31). The lower end of the cover (32) is located below the lower end of the separate unit (9; 9A).

[0095] According to the above configuration, it is possible to reduce the possibility that the light emitted from the light source (31) is blocked by the separate unit (9; 9A).

[0096] In addition, in the lighting device (1) according to the seventh aspect, in any one of the first to sixth aspects, the length (L1) of the gap between the separate unit (9; 9A) and the light source unit (3) in a direction perpendicular to the emission direction is 1 mm or less.

[0097] According to the above configuration, the gap between the separate unit (9; 9A) and the light source unit (3) is relatively small, so that it is possible to prevent foreign objects such as insects from entering the gap.

[0098] In addition, in the lighting device (1) according to an eighth aspect, in any one of the first to seventh aspects, the length (L2) of the gap between the separate unit (9; 9A) and the fixture body (20) in the emission direction is 1 mm or less.

[0099] According to the above configuration, the gap between the separate unit (9; 9A) and the appliance body (20) is relatively small, which makes it possible to prevent foreign objects such as insects from entering the gap.

[0100] In addition, the lighting device (1) according to a ninth aspect is the lighting device (1) of any one of the first to eighth aspects, wherein the light source unit (3) and the electrical connection portion (5) are arranged side by side in the longitudinal direction of the fixture body (20).

[0101] According to the above configuration, it is possible to prevent the width of the lighting device (1) in the short side direction from increasing.

[0102] In addition, the lighting device (1) according to a tenth aspect is the lighting device (1) of any one of the first to ninth aspects, wherein the light source unit (3) and the mechanical connection portion (6) are arranged side by side in the longitudinal direction of the fixture body (20).

[0103] According to the above configuration, it is possible to prevent the width of the lighting device (1) in the short side direction from increasing.

[0104] In addition, in the lighting device (1) according to an eleventh aspect, in any one of the first to tenth aspects, the light source unit (3) and the mechanical connection part (6) are arranged on the same surface (lower surface (204)) of the fixture body (20).

[0105] According to the above configuration, it is easy to ensure a space for attaching the separate unit (9; 9A) to the mechanical connection part (6).

[0106] In addition, in the lighting device (1) according to a twelfth aspect, in any one of the first to eleventh aspects, the mechanical connection portion (6) is fitted with the separate unit (9; 9A).

[0107] According to the above configuration, the separate unit (9; 9A) can be stably fixed.

[0108] The configurations other than those of the first aspect are not essential for the lighting device (1) and can be omitted as appropriate. [Explanation of symbols]

[0109] 1. Lighting equipment 3 Light source unit 5 Electrical Connections 6 Mechanical Connections 6p suppressor 7 AC power supply (power supply) 9;9A Separate unit 20. Instrument body 31 Light source 32 Cover 92 Power receiving unit 93 Protection circuit 94 Functional Section 99 Storage Battery 204 Bottom surface (surface) L1, L2 length W1 Power line (conductor)

Claims

1. The instrument body, a light source unit including a light source and held by the fixture body; an electrical connection portion held by the fixture body and electrically connectable to a separate unit facing the fixture body in a direction along the emission direction of light from the light source; a mechanical connection part provided separately from the electrical connection part, held by the device main body, and mechanically connectable to the separate unit, The mechanical connection portion has a suppression portion that suppresses the separate unit from falling off from the tool body. Lighting equipment.

2. a conductor electrically connecting a power source to the light source; The electrical connection portion is electrically connected to the conductor. The lighting device according to claim 1 .

3. the electrical connection portion is provided at a position where it is not exposed to the outside when the separate unit is not mechanically connected to the mechanical connection portion.

3. The lighting device according to claim 1 or 2.

4. The separate unit is further provided, The separate unit is a power receiving unit that receives power from the electrical connection unit; a functional unit that realizes a predetermined function using the power received by the power receiving unit; a protection circuit that limits a current flowing through the functional unit, The power receiving unit and the functional unit are electrically connected via the protection circuit.

3. The lighting device according to claim 1 or 2.

5. The separate unit is further provided, The separate unit is a power receiving unit that receives power from the electrical connection unit; a functional unit that realizes a predetermined function using the power received by the power receiving unit; a storage battery; The power receiving unit and the functional unit are electrically connected via the storage battery.

3. The lighting device according to claim 1 or 2.

6. a direction away from the light source unit along the emission direction is defined as a downward direction, The light source unit further includes a light-transmitting cover that covers the light source, The lower end of the cover is located lower than the lower end of the separate unit.

3. The lighting device according to claim 1 or 2.

7. a length of a gap between the separate unit and the light source unit in a direction perpendicular to the emission direction is 1 mm or less; 3. The lighting device according to claim 1 or 2.

8. The length of the gap between the separate unit and the device main body in the emission direction is 1 mm or less.

3. The lighting device according to claim 1 or 2.

9. The light source unit and the electrical connection portion are aligned in the longitudinal direction of the fixture body.

3. The lighting device according to claim 1 or 2.

10. The light source unit and the mechanical connection portion are aligned in the longitudinal direction of the fixture body.

3. The lighting device according to claim 1 or 2.

11. The light source unit and the mechanical connection portion are arranged on the same surface of the fixture body.

3. The lighting device according to claim 1 or 2.

12. The mechanical connection portion mates with the separate unit.

3. The lighting device according to claim 1 or 2.

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