Lighting fixtures and lighting devices

Abstract

To acquire a lighting fixture which can suppress generation of noise by a stick-slip phenomenon more sufficiently than before.SOLUTION: A lighting fixture includes: a light source section; a pedestal on which the light source section is mounted; and an outer shell section which has a light transmission section where light radiated from the light source section transmits, and which is mounted on the pedestal so as to cover the light source section. In a state where the outer shell section is mounted on the pedestal, a pedestal side contact region of the pedestal and an outer shell section side contact region of the outer shell section come into contact with each other. The pedestal side contact region and the outer shell section side contact region have a shape long in one direction. One out of the pedestal side contact region and the outer shell section side contact region includes: at least one contact section coming into contact with the other out of the pedestal side contact region and the outer shell section side contact region; and at least one non-contact section adjacent to the contact section in one direction, and not coming into contact with the other out of the pedestal side contact region and the outer shell section side contact region.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a lamp that suppresses the generation of abnormal noise, and a lighting device including the lamp. [Background technology]

[0002] Conventionally, a lighting fixture has been proposed that includes a light source unit that uses a light emitting diode or the like as a light source. A light emitting diode is also called a light emitting diode. Such a lighting fixture includes a base on which the light source is attached, and an outer shell unit that is attached to the base so as to cover the light source unit. The outer shell unit has a light transmitting portion through which light emitted from the light source unit passes. In addition, when the outer shell unit is attached to the base, a base side contact area of ​​the base and an outer shell side contact area of ​​the outer shell unit come into contact with each other.

[0003] Generally, the base and the outer shell are made of materials with different thermal expansion coefficients. Therefore, due to temperature changes in the lamp and temperature changes around the lamp, abnormal noises due to the stick-slip phenomenon may occur at the contact points between the base and the outer shell. For this reason, a conventional lamp has been proposed that aims to suppress the generation of abnormal noises due to the stick-slip phenomenon (see Patent Document 1). Specifically, the lamp described in Patent Document 1 is provided with at least one rib that extends over the entire area of ​​the outer shell side contact area in the outer shell side contact area of ​​the outer shell. Therefore, in the lamp described in Patent Document 1, the outer shell part that contacts the base side contact area of ​​the base is at least one rib provided in the outer shell side contact area. In this way, the lamp described in Patent Document 1 aims to suppress the generation of abnormal noises due to the stick-slip phenomenon by reducing the contact area between the base and the outer shell. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6726870 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, in the lamp described in Patent Document 1, the rib provided in the outer shell contact area extends over the entire area of ​​the outer shell contact area. That is, in the lamp described in Patent Document 1, the rib provided in the outer shell contact area has a shape that is long in one direction. Therefore, in the lamp described in Patent Document 1, when the base and the outer shell expand or contract in the longitudinal direction of the rib, the generation of abnormal noise due to the stick-slip phenomenon cannot be sufficiently suppressed. That is, the conventional lamp has a problem that the generation of abnormal noise due to the stick-slip phenomenon cannot be sufficiently suppressed.

[0006] The present disclosure has been made to solve the above-mentioned problems, and has a first object to provide a lamp that can suppress the generation of abnormal noise caused by the stick-slip phenomenon more than ever before. A second object of the present disclosure is to provide an illumination device including a lamp according to the present disclosure. [Means for solving the problem]

[0007] The lamp according to the present disclosure includes a light source unit, a base to which the light source unit is attached, and a light-transmitting unit through which light emitted from the light source unit passes. and, Attached to the base a mounting portion and covering the light source portion and an outer shell part, wherein when the outer shell part is attached to the base, a base-side contact area of ​​the base and an outer shell-side contact area of ​​the outer shell part are in contact with each other, the base-side contact area and the outer shell-side contact area are elongated in one direction, and one of the base-side contact area and the outer shell-side contact area has contact points formed continuously along the one direction so as to protrude in a direction approaching the other of the base-side contact area and the outer shell-side contact area. At least one We have One of the contact points is formed over the entire area of ​​the attachment portion in the one direction, The other of the base side contact area and the outer shell side contact area is The one The contact member has at least one contact portion that contacts the contact location, and at least one non-contact portion that is adjacent to the contact portion along the one direction and does not contact the contact location.

[0008] The lighting device according to the present disclosure includes a lamp according to the present disclosure and an appliance to which the lamp is detachably attached. Effect of the Invention

[0009] In the lamp according to the present disclosure, one of the base side contact region and the outer shell side contact region comes into contact with the other of the base side contact region and the outer shell side contact region at the contact portion. Therefore, the lamp according to the present disclosure can reduce the contact area between the base side contact region and the outer shell side contact region. In addition, in the lamp according to the present disclosure, a non-contact portion that does not come into contact with the other of the base side contact region and the outer shell side contact region is provided adjacent to the contact portion in the longitudinal direction of the base side contact region and the outer shell side contact region. Therefore, in the lamp according to the present disclosure, one of the base side contact region and the outer shell side contact region comes into contact with the other of the base side contact region and the outer shell side contact region at the contact portion only in a part of the longitudinal direction of the base side contact region and the outer shell side contact region. Therefore, the lamp according to the present disclosure can reduce the contact length of the base side contact region and the outer shell side contact region in the longitudinal direction of the base side contact region and the outer shell side contact region. Therefore, the lamp according to the present disclosure can suppress the generation of abnormal noise caused by the stick-slip phenomenon more than ever before. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view showing an illumination device according to a first embodiment. [Diagram 2] 1 is a perspective view of the lighting device according to the first embodiment, in which a fixture and a lamp are separated from each other. FIG. [Diagram 3] 1 is a perspective view of a lighting fixture according to a first embodiment, viewed from above. [Figure 4] 1 is an exploded perspective view showing a main configuration of a lighting fixture according to a first embodiment. [Diagram 5] FIG. 2 is a perspective cross-sectional view of a base according to the first embodiment. [Figure 6] 1 is a perspective cross-sectional view of a lighting fixture according to a first embodiment. [Figure 7] 7 is a partial cross-sectional view of part A shown in FIG. 6, observed in the longitudinal direction X. FIG. [Figure 8] 8 is a cross-sectional view of FIG. 7 taken along line B-B. [Figure 9] 9 is a cross-sectional view taken along CC in FIG. 8 . [Figure 10] 4 is a partial cross-sectional view showing another example of the lighting fixture according to the first embodiment. FIG. [Figure 11] 4 is a partial cross-sectional view showing another example of the lighting fixture according to the first embodiment. FIG. [Figure 12] 4 is a partial cross-sectional view showing another example of the lighting fixture according to the first embodiment. FIG. [Figure 13] 7 is a partial cross-sectional view of part D shown in FIG. 6, observed in the longitudinal direction X. FIG. [Figure 14] FIG. 11 is a perspective cross-sectional view of a base according to a second embodiment. [Figure 15] FIG. 11 is a perspective cross-sectional view of a lighting device according to a second embodiment. [Figure 16] 16 is a partial cross-sectional view of a portion E shown in FIG. 15, observed in the longitudinal direction X. FIG. [Figure 17] 17 is a cross-sectional view of FIG. 16 shown in FIG. [Figure 18] 16 is a partial cross-sectional view of part G shown in FIG. 15, observed in the longitudinal direction X. FIG. [Figure 19] 16 is a perspective cross-sectional view of a lamp according to a second embodiment, in which the lamp is cut in a position different from that in FIG. 15 in the longitudinal direction X. FIG. [Figure 20] FIG. 11 is a perspective cross-sectional view of a base according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an example of a lamp and an illumination device according to the present disclosure will be described with reference to the drawings in each of the following embodiments. Note that the components of the lamp and illumination device shown in each of the following embodiments are merely examples. The components of the lamp and illumination device according to the present disclosure are not limited to these descriptions. In addition, in each drawing, the same reference numerals are the same or equivalent. In addition, in each drawing, the relative dimensional relationship and shape of each component may differ from the lamp and illumination device according to the present disclosure that are actually manufactured. Here, in the following description, terms expressing directions or orientations are appropriately used to facilitate understanding, but these notations are descriptions used for convenience of explanation. The directions or orientations shown in the following description do not limit the arrangement, direction, and orientation of each component of the lamp and illumination device according to the present disclosure. Note that terms expressing directions or orientations are, for example, "up", "down", "right", "left", "front", "rear", "front" or "back".

[0012] Embodiment 1 FIG. 1 is a perspective view showing an illumination device according to embodiment 1. FIG. 2 is a divided perspective view of the illumination device according to embodiment 1, in which an appliance and a lamp are separated. FIG. 3 is a perspective view of the lamp according to embodiment 1, seen from above. FIG. 4 is an exploded perspective view showing the main configuration of the lamp according to embodiment 1. FIG. 5 is a perspective cross-sectional view of a base according to embodiment 1. FIG. 6 is a perspective cross-sectional view of the lamp according to embodiment 1.

[0013] First, a schematic configuration of the lighting fixture 200 and the lighting device 1 according to the first embodiment will be described with reference to Figs. 1 to 6. In the following description, the direction along the long side of the lighting device 1 is defined as the long direction X. Moreover, the direction perpendicular to the long direction X and along the short side of the lighting device 1 is defined as the short direction Y. Moreover, the direction perpendicular to both the long direction X and the short direction Y is defined as the up-down direction Z. Moreover, in the up-down direction Z, the direction toward the attachment portion 2 to which the lighting device 1 is attached is defined as the upward direction Z1. The direction opposite to the upward direction Z1 and toward the illumination space side to which the lighting device 1 is irradiated is defined as the downward direction Z2. In other words, the upward direction Z1 is the direction in which the fixture 100 is attached to the attachment portion 2, and the lighting fixture 200 is attached to the fixture 100. Moreover, the downward direction Z2 is the direction in which the fixture 100 is removed from the attachment portion 2, and the lighting fixture 200 is removed from the fixture 100.

[0014] [Lighting equipment 1] The lighting device 1 is installed at a position where it can illuminate the lighting space, and is a device that illuminates the lighting space. The lighting space is a space in which the lighting device 1 is installed, and is, for example, an interior space of a residential space, a warehouse, a building, a public facility, etc. In addition, the lighting space is, for example, a shared space such as an elevator or a corridor. In addition, the lighting space is, for example, a space inside a vehicle such as a train or a ship.

[0015] The lighting device 1 includes a device 100 and a luminaire 200 that is detachably attached to the device 100. The lighting device 1 is attached to a mounting portion 2 with the luminaire 200 facing the lighting space. The mounting portion 2 is a mounting portion to which the device 100 is attached, such as a ceiling or a wall. The lighting device 1 illuminates the lighting space by turning on the luminaire 200 and irradiating light from the luminaire 200. The lighting device 1 according to the first embodiment has an end portion in the longitudinal direction X that is in an inverted Mt. Fuji shape. In other words, the lighting device 1 according to the first embodiment has an end portion in the longitudinal direction X that is V-shaped. Such a lighting device 1 is called a so-called inverted Mt. Fuji or V-shaped lighting device. The lighting device 1, the device 100, and the luminaire 200 according to the first embodiment are all elongated, and the longitudinal direction of each of them is along the longitudinal direction X.

[0016] The lighting device 1 is not limited to an inverted Fuji-type lighting device. For example, the lighting device 1 may be a lighting device of a type that is directly attached to the mounting portion 2, such as a trough type or a hood type. Also, for example, the lighting device 1 may be a lighting device of a type that is at least partially embedded in the mounting portion 2.

[0017] [Appliances 100] The fixture 100 is a so-called direct-attach type fixture that is directly attached to the attachment portion 2. The fixture 100 is attached to a fixture such as a hanging bolt provided on the attachment portion 2. The fixture 100 is also an attachment member to which the lighting fixture 200 is attached. For this reason, the fixture 100 is also called a lighting fixture mounting fixture. The fixture 100 holds the lighting fixture 200 attached to it and supplies power to the lighting fixture 200.

[0018] The fixture 100 has an elongated fixture body 110 extending in the longitudinal direction X, and fixture end portions 114 attached to both ends in the longitudinal direction X of the fixture body 110. The fixture end portion 114 has a trapezoidal shape with an upper side longer than a lower side. That is, the fixture end portion 114 is disposed such that the longer side of the trapezoid is on the side of the attachment portion 2, and the shorter side of the trapezoid is on the side of the lighting space.

[0019] The device main body 110 has a top surface 111, a pair of side surfaces 112, and a pair of inclined portions 113. The top surface 111, the pair of side surfaces 112, and the pair of inclined portions 113 are formed in a long, flat plate shape along the longitudinal direction X. The top surface 111 is also referred to as a bottom surface of the device main body 110. Although not shown, the top surface 111 has screw holes and electric wire insertion holes. The device 100 is attached so that the top surface 111 is approximately parallel to the attachment portion 2, such as a ceiling.

[0020] A pair of side surfaces 112 and a pair of inclined surfaces 113 are arranged as fixture sides on both ends of the top surface 111 in the short-side direction Y. In the short-side direction Y of the fixture main body 110, the pair of side surfaces 112 are arranged inside the pair of inclined surfaces, and the pair of inclined surfaces 113 are arranged outside the pair of side surfaces 112. Of both ends of the pair of side surfaces 112 in the up-down direction Z, one end arranged on the top surface 111 side is connected to a slightly inner part of the end of the top surface 111 in the short-side direction Y. Of both ends of the pair of side surfaces 112 in the up-down direction Z, the other end arranged on the side of the lighting space opposite the top surface 111 is connected to an inner end of the pair of inclined surfaces 113 in the short-side direction Y.

[0021] The pair of side portions 112 are provided along the longitudinal direction X of the top surface portion 111 over the entire length of the top surface portion 111, and rise from the periphery of the side edge of the top surface portion 111 in a direction away from the mounting portion 2. In other words, the pair of side portions 112 protrude downward Z2 from the periphery of the side edge of the top surface portion 111.

[0022] The pair of inclined portions 113 are inclined portions of the fixture body 110, and are design parts that define the appearance of the lighting device 1 and the fixture 100. The pair of inclined portions 113 are provided along the longitudinal direction X of the pair of side surface portions 112, over the entire length of one end of the side surface portions 112 in the lateral direction Y. The pair of inclined portions 113 are provided on both sides in the lateral direction Y of a lamp housing portion 116 described later. The pair of inclined portions 113 are inclined with respect to the top surface portion 111, and are inclined with respect to a mounting portion 2 such as a ceiling to which the fixture 100 is mounted. The pair of inclined portions 113 are formed so as to move away from the side surface portions 112 as they move toward the mounting portion 2. The inclined portions 113 may have a function of reflecting a part of the light irradiated from the fixture 200 and distributing the light laterally. The device main body 110 may be formed by assembling a top surface 111, a pair of side surfaces 112, and a pair of inclined surfaces 113, each of which is formed as a separate component, or some or all of these may be formed integrally.

[0023] The fixture ends 114 are plate-shaped and disposed at both ends of the fixture body 110 in the longitudinal direction X. The fixture ends 114 are attached to the fixture body 110 so as to contact the top surface 111, the pair of side surface portions 112, and the pair of inclined portions 113. Each of the fixture ends 114 is formed with a knockout portion 115. Although not shown in the drawings, when an external electric wire is to be passed between the lighting device 1 and an illumination device or the like installed adjacent to the illumination device 1, a penetration portion formed by punching out the knockout portion 115 functions as an insertion port for the external electric wire to be passed.

[0024] The top surface 111 and the pair of side surfaces 112 of the fixture body 110 are concave and open at the bottom, forming a lamp housing 116 together with the fixture end 114. The lamp housing 116 is a space in which a part of the lamp 200 is housed, and is formed in a box shape. Two springs 117, a terminal block 118, and a fixture-side electric wire 119 are provided in the lamp housing 116.

[0025] The lighting fixture 200 is attached to the fixture 100 by connecting the spring 117, which is a fixture-side connector, to a spring receiver 341, which is a fixture-side connector provided on the lighting fixture 200. In the first embodiment, two springs 117 are attached to the top surface 111 in a state spaced apart from each other along the longitudinal direction X of the fixture main body 110. The springs 117 are provided at positions corresponding to the spring receivers 341, and one, or three or more springs may be provided.

[0026] The terminal block 118 serves as a relay device that supplies power supplied from an external power source to the lighting fixture 200. The fixture-side electric wires 119 are electrically connected to the terminal block 118, and the power supplied from the external power source is supplied to the power supply unit 330 of the lighting fixture 200 via the terminal block 118 and the fixture-side electric wires 119. Note that the fixture-side electric wires 119 may include a control signal line and the like in addition to a power supply line, and the terminal block 118 may relay a control signal as well as power.

[0027] The device 100 is formed, for example, by using a metal plate material and processing such as bending, roll forming, pressing, etc. Also, for example, the device 100 is formed by a manufacturing method such as extrusion molding or three-dimensional modeling using a metal material or a resin material, etc.

[0028] [Lighting 200] The lighting fixture 200, when attached to the fixture 100, irradiates light towards an illumination space. The lighting fixture 200 is also called a lighting fixture or a light unit. The lighting fixture 200 is attached to the fixture 100 when in use, and constitutes a lighting device 1 together with the fixture 100. The lighting fixture 200 is detachably attached to the fixture 100. The lighting fixture 200 mainly has a light source unit 210, a base 220, an outer casing 270, a power supply unit 330, a spring receiver 341, and the like.

[0029] The light source unit 210 is a light-emitting unit that emits light. The light source unit 210 includes a light-emitting unit 211 and a substrate 212 on which the light-emitting unit 211 is provided. The light-emitting unit 211 emits light using lighting power supplied from a power supply unit 330 via a power supply line 310.

[0030] The light emitting unit 211 is a surface mounted component. The light emitting unit 211 is, for example, a light emitting element such as a light emitting diode. The light emitting unit 211 is mounted on the first surface 213, which is the mounting surface of the substrate 212, by using a connecting member such as solder. The light emitting unit 211 is not limited to a light emitting diode. For example, the light emitting unit 211 may use an element such as a solid-state laser, a semiconductor laser, an organic EL, or an inorganic EL. For example, the light emitting unit 211 may be a combination of several elements such as a light emitting diode, a solid-state laser, a semiconductor laser, an organic EL, or an inorganic EL. The solid-state laser is also called a solid state laser. The semiconductor laser is also called a semiconductor laser. The organic EL is also called an electroluminescence.

[0031] The substrate 212 is formed in an elongated shape extending along the longitudinal direction X. The substrate 212 has a rectangular plate shape, and the light emitting units 211 are arranged in a row on a first surface 213 which is a mounting surface of the light emitting units 211. A second surface 214, which is the surface opposite to the first surface 213, is a non-mounting surface and is a joining surface that is adhesively fixed to the first surface 231 of the base 220 using an adhesive member. The configuration of the light emitting unit 211 is not limited to the above-mentioned configuration. Furthermore, the fixing configuration of the substrate 212 to the base 220 is not limited to the above-mentioned configuration. For example, the substrate 212 may be fixed to the base 220 using a fixing tool such as a rivet or a screw. Furthermore, for example, the substrate 212 may be fixed by a substrate holding part formed by processing the base 220 by cutting and raising a part of the base. The first surface 213 of the substrate 212 is a surface facing the irradiation space side, and is the lower surface of the substrate 212. The second surface 214 of the substrate 212 is the surface that faces the device 100 and is the top surface of the substrate 212 .

[0032] As the substrate 212, for example, a glass-epoxy substrate, a glass-composite substrate, a paper-epoxy substrate, a paper-phenol substrate, or a metal-based substrate is used. The substrate 212 may be of either a rigid type or a flexible type. The glass-epoxy substrate may also be called FR-4. The glass-composite substrate may also be called CEM-3. The paper-epoxy substrate may also be called FR-3. The paper-phenol substrate may also be called XPC.

[0033] A power supply line 310, which is a supply path of lighting power supplied from a power supply unit 330, is connected to the substrate 212. More specifically, a conductor on one end side of the power supply line 310 is connected to a power receiving unit provided on the first surface 213 using a connecting member such as solder. The power receiving unit is also called a connection pad or the like. The power supply line 310 is arranged via a power supply line insertion portion 215, which is a through hole provided in a direction penetrating the substrate 212, and a power supply line insertion hole penetrating a base portion 230 of the pedestal 220 described later, and electrically connects the light source unit 210 and the power supply unit 330. The power receiving unit may be provided on at least one of the first surface 213 or the second surface 214 of the substrate 212.

[0034] The base 220 is an elongated structure having a base portion 230 and a side portion 240 extending in the longitudinal direction X. The base 220 is also referred to as a base or chassis. The base portion 230 is an arrangement portion in which the light source portion 210 is arranged on the first surface 231 side and the power supply portion 330 is arranged on the second surface 232 side. The first surface 231 is the front surface of the base 220, constitutes the surface on the side of the irradiation space, and faces a translucent portion 281 (described later) of the outer casing portion 270. The first surface 231 is also referred to as the bottom surface of the base 220, which faces the downward Z2 side. The second surface 232 is the back surface of the base 220, constitutes the surface on the side of the mounting portion 2, and faces the top surface portion 111 of the fixture body portion 110 when the lighting fixture 200 is attached to the fixture 100. The second surface 232 is a surface facing the upward Z1 direction, and is also referred to as the upper surface of the base 220.

[0035] The base 230 is provided with a power supply fixing part 235 for fixing the power supply unit 330. The power supply fixing part 235 is roughly frustum-shaped, and is formed so as to protrude upward Z1 in the vertical direction Z from the second surface 232. A fastener 343, which is a screw for fixing the power supply unit 330 to the pedestal 220, is inserted into a screw insertion hole 236 formed in the center of the power supply fixing part 235.

[0036] In addition, the base portion 230 is provided with a connector attachment hole 233 for attaching the spring receiver 341 and a connector fixing portion 234 .

[0037] The side portion 240 rises from the end of the base portion 230 in the Y direction toward the side of the instrument 100, and has the function of improving the rigidity of the base. In the first embodiment, the cross-sectional shape of the base 220 in which the longitudinal direction X is the normal direction, in other words, the shape of the base 220 in a cross section along the short direction Y, is approximately U-shaped.

[0038] The base 220 is formed by bending a metal plate such as a steel plate, and has rigidity as a structure. The base 220 is bent by a processing method such as roll forming or press molding. However, the base 220 is not limited to being formed by bending a metal plate. For example, the base 220 may be formed using a material other than metal, such as resin or ceramic. The base 220 may be manufactured using other processing methods such as extrusion molding or three-dimensional modeling. Furthermore, although not shown, the base 220 may be subjected to a surface treatment or a functional member may be laid on the base 220 in order to improve the heat dissipation efficiency (thermal emissivity) or the light utilization efficiency (reflectivity), etc.

[0039] The outer shell part 270 is a cover that forms the outer shell of the lighting fixture 200 and is attached to the base 220 so as to cover the light source part 210. The outer shell part 270 has a main part 280 that extends in the longitudinal direction X of the lighting fixture 200, and ends 271 provided on both ends of the main part 280 in the longitudinal direction X.

[0040] The main portion 280 has a light-transmitting portion 281 through which the light irradiated from the light source portion 210 passes, and an attachment portion 290 that is attached to the base 220. The outer shell portion 270 has an end portion in the longitudinal direction X of the main portion 280 that is generally U-shaped. However, the end portion in the longitudinal direction X of the main portion 280 may have another shape, such as a generally V-shape.

[0041] When the lighting fixture 200 is attached to the device 100, at least a portion of the light-transmitting portion 281 is exposed to the outside of the device 100 and serves as a portion that transmits light emitted from the light source unit 210 and irradiates the light to the outside. The light-transmitting portion 281 also serves as a portion that protects the light source unit 210, etc. For this reason, the light-transmitting portion 281 is disposed to face the light source unit 210 with a gap provided between the light-transmitting portion 281 and the light source unit 210 so as not to come into contact with the light source unit 210.

[0042] The mounting portion 290 is attached to the base 220 so as to embrace the base 230 and the side portion 240 from both ends in the short direction Y of the base 220. The mounting portion 290 has a first mounting portion 291 and a second mounting portion 293. The first mounting portion 291 is disposed opposite to the first surface 231 of the base 220 and supports the base 230. The second mounting portion 293 is disposed opposite to the outer surface 241 of the side portion 240 of the base 220 and engages with the tip portion of the side portion 240. The first mounting portion 291 is also referred to as a support portion, and the second mounting portion 293 is also referred to as a locking portion.

[0043] The end 271 is a portion that covers an end of the lighting fixture 200 in the longitudinal direction X. In the present embodiment 1, the end 271 is formed as a separate member from the light-transmitting portion 281, and is attached to the light-transmitting portion 281 by welding, adhesion, or the like. The end 271 fits into an end opening of a space formed by the light-transmitting portion 281 of the outer shell portion 270 and the base portion 230 of the pedestal 220, and closes the end opening. However, the configuration of the outer shell portion 270 is not limited to this configuration. The outer shell portion 270 may be one in which the end 271, the light-transmitting portion 281, and the attachment portion 290 are integrally molded.

[0044] The outer shell 270 is formed using a light-transmitting material. The material used for the outer shell 270 is, for example, a synthetic resin such as polycarbonate, acrylic, or polypropylene. Also, for example, the material used for the outer shell 270 may be a material other than synthetic resin, such as glass. Polycarbonate is also called PC. Acrylic is also called PMMA. Polypropylene is also called PP. The outer shell 270 is formed using these materials by a method such as injection molding, blow molding, extrusion molding, or three-dimensional modeling. The outer shell 270 may have a diffusion function or a wavelength discrimination function depending on the specifications of the lighting device 1.

[0045] The power supply unit 330 has a power supply device 331 and a power supply case 334 attached to the second surface 232 side of the base 220 in a state in which the power supply device 331 is stored. The power supply device 331 has an input terminal 332 to which the appliance side electric wire 119 is connected, and an output terminal 333 to which the power supply line 310 is connected. In the first embodiment, the input terminal 332 of the power supply device 331 is connected to the appliance side electric wire 119 via a power supply unit side electric wire 335. The power supply device 331 generates lighting power for lighting the light emitting unit 211 of the light source unit 210 from an external power source such as a commercial power source supplied via a terminal block 118 and the appliance side electric wire 119 arranged in the appliance 100. The lighting power is supplied to the light source unit 210 via the power supply line 310.

[0046] The power supply unit 330 is fixed to the second surface 232 of the base 230 using fasteners 343 such as screws inserted into screw insertion holes 236 of the power supply fixing part 235, with a part of the power supply case 334 held by the holder 320 attached to the second surface 232 of the base 230. When the lighting fixture 200 is attached to the fixture 100, the power supply unit 330 is disposed between the second surface 232 of the pedestal 220 and the top surface 111 of the fixture main body 110.

[0047] The power supply line 310, which passes through the power supply line insertion hole of the base 220 to connect the light source unit 210 and the power supply unit 330, is held by a holder 320 provided opposite the power supply line insertion hole, and is fixed to the base 220 in a state separated from the power supply line insertion hole. This makes it possible to prevent contact and short circuit between the power supply line 310 and the base 220.

[0048] The holder 320 includes a first holder 321 and a second holder 322 arranged side by side along the longitudinal direction X of the base 220. The holder 320 also has an engagement structure for engaging the first holder 321 and the second holder 322 with each other. The holder 320 holds the power supply line 310 between the first holder 321 and the second holder 322 in a state in which the first holder 321 and the second holder 322 are engaged with each other.

[0049] The spring receiver 341 is a lamp side connector. The spring receiver 341 and the spring 117, which is a fixture side connector, constitute a connector for attaching the lamp 200 to the fixture 100. The spring receiver 341 is disposed on the second surface 232 side of the base 220. The spring receiver 341 is fixed to the base 230 by inserting a part of the spring receiver 341 into the connector mounting hole 233 and the connector fixing portion 234 of the base 230. The spring receiver 341 rises from the second surface 232 of the base 230 toward the upward Z1 in the vertical direction Z, and is disposed in the lamp housing portion 116 when the lamp 200 is attached to the fixture 100. The spring 117 of the fixture 100 and the spring receiver 341 of the lamp 200 are connected to each other, so that the lamp 200 is attached to the fixture 100.

[0050] [Detailed configuration of contact points between base 220 and outer shell 270] In a state where the outer shell part 270 is attached to the base 220, the base-side contact area of ​​the base 220 and the outer shell part 270 come into contact with each other. There is at least one such contact point between the base 220 and the outer shell part 270. For example, in the lamp 200 according to the first embodiment, there is a contact point where a part of the first surface 231 in the base part 230 of the base 220 becomes the base-side contact area, and a part of the first attachment part 291 in the attachment part 290 of the outer shell part 270 becomes the outer shell part-side contact area. The base-side contact area and the outer shell part-side contact area at this contact point have a long shape in the longitudinal direction X, which is one direction. In addition, in the lamp 200 according to the first embodiment, there is a contact point where a part of the outer surface 241 in the side part 240 of the base 220 becomes the base-side contact area, and a part of the second attachment part 293 in the attachment part 290 of the outer shell part 270 becomes the outer shell part-side contact area. The base side contact region and the outer shell side contact region at this contact point have a shape that is elongated in the longitudinal direction X, which is one direction.

[0051] Generally, the base 220 and the outer shell 270 are often made of materials with different thermal expansion coefficients. In such a configuration, when the temperature of the luminaire 200 and the temperature around the luminaire 200 change with the start and stop of the lighting device 1, an abnormal sound due to the stick-slip phenomenon may occur at the contact point between the base 220 and the outer shell 270. Therefore, in the luminaire 200 according to the first embodiment, at at least one of the contact points between the base 220 and the outer shell 270, one of the base side contact area and the outer shell side contact area has at least one contact part 251 and at least one non-contact part 252 as described later, thereby suppressing the generation of abnormal sound due to the stick-slip phenomenon. Note that the contact part 251 is provided in one of the base side contact area and the outer shell side contact area, and contacts the other of the base side contact area and the outer shell side contact area. The non-contact portion 252 is provided adjacent to the contact portion 251 in the longitudinal direction X in one of the base side contact area and the outer shell side contact area, and does not contact the other of the base side contact area and the outer shell side contact area.

[0052] Fig. 7 is a partial cross-sectional view of part A shown in Fig. 6 observed in the longitudinal direction X. Fig. 8 is a cross-sectional view taken along line BB in Fig. 7. Fig. 9 is a cross-sectional view taken along line CC in Fig. 8. Below, using Figures 5 to 9, we will explain an example in which a contact portion 251 and a non-contact portion 252 are provided at a contact location where a portion of the first surface 231 at the base 230 of the base 220 becomes the base side contact area, and a portion of the first mounting portion 291 at the mounting portion 290 of the outer shell portion 270 becomes the outer shell side contact area.

[0053] The first mounting portion 291 of the mounting portion 290 has a tip portion 292 that protrudes toward the first surface 231 of the base portion 230. The tip portion 292 is formed over the entire area of ​​the mounting portion 290 in the longitudinal direction X. In addition, a reinforcing portion 295 that protrudes toward the side portion 240 of the base 220 is formed over the entire area of ​​the mounting portion 290 in the longitudinal direction X on the opposing surface portion 294 of the second mounting portion 293 of the mounting portion 290. This stabilizes the shape of the mounting portion 290 and improves its rigidity. This makes it possible to suppress deformation of the mounting portion 290 in a state in which the outer shell portion 270 is attached to the base 220, and allows the outer shell portion 270 to be reliably attached to the base 220. The tip portion 292 and the reinforcing portion 295 are also called ribs.

[0054] Here, the tip 292 formed on the first mounting portion 291 of the mounting portion 290 becomes the outer shell side contact area. Also, the area of ​​the first surface 231 of the base portion 230 of the base 220 facing the tip 292 becomes the base side contact area. By making the tip 292 the outer shell side contact area in this way, the contact area between the base 220 and the outer shell 270 can be reduced, and the generation of abnormal noise due to the stick-slip phenomenon can be suppressed. However, since the mounting portion 290 is formed by extrusion molding or the like, the tip 292 is formed over the entire mounting portion 290. That is, the tip 292 extends over the entire area of ​​the outer shell side contact area in the longitudinal direction X. For this reason, when the base 220 and the outer shell 270 expand or contract in the longitudinal direction X, the generation of abnormal noise due to the stick-slip phenomenon cannot be sufficiently suppressed.

[0055] As a method for solving this problem, it is considered to partially cut off the tip portion 292 by secondary processing. In this case, the part of the tip portion 292 that is not cut off becomes the contact portion 251. Also, the part of the tip portion 292 that is cut off becomes the non-contact portion 252. By providing the contact portion 251 and the non-contact portion 252 in this way, the outer shell side contact region contacts the base side contact region at the contact portion 251 only in a part of the base side contact region and the longitudinal direction X of the outer shell side contact region. Therefore, it is expected that the generation of abnormal noise due to the stick-slip phenomenon can be suppressed. However, this method is not suitable for mass production of the lamp 200 and the lighting device 1, considering the deformation of the main portion 280 due to the processing of the tip portion 292, ensuring the weather resistance of the processed part of the tip portion 292, the processing time of the tip portion 292, and the processing cost of the tip portion 292.

[0056] Therefore, in the first embodiment, the contact portion 251 and the non-contact portion 252 are provided in the region of the first surface 231 of the base portion 230 of the base 220 facing the tip portion 292. That is, the base side contact region includes the contact portion 251 and the non-contact portion 252. Specifically, the base portion 230 of the base 220 has a convex portion that protrudes toward the tip portion 292 of the first attachment portion 291. This convex portion becomes the contact portion 251 that contacts the tip portion 292, which is the outer shell side contact region. That is, the contact portion 251 is formed so as to protrude downward Z2. The contact portion 251 is formed into a substantially elliptical truncated cone shape by, for example, embossing. In addition, the base portion 230 of the base 220 has a portion adjacent to the contact portion 251 in the longitudinal direction X that does not protrude toward the tip portion 292 of the first attachment portion 291. This portion becomes the non-contact portion 252. That is, the contact portion 251 and the non-contact portion 252 form a projection and recess along the longitudinal direction X.

[0057] That is, the total dimension in the longitudinal direction X of the contact portion 251 is smaller than the dimension in the longitudinal direction X of the base-side contact region. In other words, the total dimension in the longitudinal direction X of the contact portion 251 is smaller than the dimension in the longitudinal direction X of the outer shell-side contact region, which is a region facing the base-side contact region. In addition, the total dimension in the longitudinal direction X of the non-contact portion 252 is smaller than the dimension in the longitudinal direction X of the base-side contact region. In other words, the total dimension in the longitudinal direction X of the non-contact portion 252 is smaller than the dimension in the longitudinal direction X of the outer shell-side contact region, which is a region facing the base-side contact region. In addition, in the present embodiment 1, a plurality of contact portions 251 are provided along the longitudinal direction X. In addition, a plurality of non-contact portions 252 are provided along the longitudinal direction X.

[0058] Even by providing the contact portion 251 and the non-contact portion 252 in this manner, the base side contact area comes into contact with the outer shell side contact area at the contact portion 251 only in a portion of the base side contact area and the outer shell side contact area in the longitudinal direction X. This makes it possible to further suppress the generation of abnormal noise due to the stick-slip phenomenon.

[0059] Furthermore, by providing the contact portion 251 and the non-contact portion 252 in this manner, the base portion 230 of the seat 220 and the tip portion 292 of the attachment portion 290 are separated at the position of the non-contact portion 252, allowing air to move through this portion. This makes it possible to efficiently dissipate the operating heat generated with the operation of the light-emitting portion 211 of the light source portion 210, and also has the effect of suppressing the temperature rise of the light-emitting portion 211. As a result, it is possible to further suppress the generation of abnormal noise due to the stick-slip phenomenon at the contact portion between materials having different thermal expansion coefficients.

[0060] In addition, the contact portion 251 of the base 220 can be formed at the same time as the base 220 is formed. Furthermore, by providing the contact portion 251 on the base 220, the rigidity of the base 220 is improved. In the above example, the contact portion 251 is provided on the base 230 of the base 220, so the rigidity of the base 230 is improved. Therefore, the flatness of the flat portion of the base 220 is maintained, so that stress is not easily applied to the light source unit 210 arranged on the base 220 during assembly of the lighting fixture 200, transportation of the lighting device 1, installation of the lighting device 1, or the like. As a result, the reliability of the lighting fixture 200 and the lighting device 1 is improved. Furthermore, by providing the contact portion 251 around the light source unit 210, the contact portion 251 also functions as a positioning component for the light source unit 210. Thus, providing the base 220 with the contact portion 251 and the non-contact portion 252 is also suitable for mass production of the lighting fixture 200 and the lighting device 1.

[0061] Here, the contact portion 251 provided on the base 220 may slightly protrude toward the outer shell side contact region. For example, the contact portion 251 provided on the base 230 may slightly protrude toward the tip 292 of the attachment portion 290 with respect to the first surface 231 of the base 230. From the viewpoint of moldability of the base 220, in order to prevent the contact portion 251 from breaking, it is preferable that the height of the contact portion 251 protruding toward the outer shell side contact region is 10 times or less the thickness of the portion of the base 220 that forms the base side contact region. In the case of the contact portion 251 provided on the base 230, as shown in FIG. 8, the height H1 of the contact portion 251 protruding toward the tip 292 of the attachment portion 290 is preferably 10 times or less the thickness T of the base 230. For example, when the thickness T of the base 230 is 0.5 mm, the height H1 is preferably 5.0 mm or less.

[0062] From the viewpoint of preventing the intrusion of foreign matter such as insects and dust, the height of contact portion 251 protruding toward the outer shell side contact area is preferably equal to or less than the thickness of the portion forming the base side contact area of ​​base 220. In the case of contact portion 251 provided on base 230, the height H1 of contact portion 251 protruding toward tip portion 292 of attachment portion 290 is preferably equal to or less than the thickness T of base 230.

[0063] Moreover, from the viewpoint of reducing the probability of occurrence of abnormal noise due to the stick-slip phenomenon, it is preferable that the total dimension in the longitudinal direction X of the contact portion 251 is as small as possible. However, if the total dimension in the longitudinal direction X of the contact portion 251 is small, foreign matter such as insects and dust can easily enter. For this reason, the total dimension in the longitudinal direction X of the contact portion 251 is determined in consideration of the probability of occurrence of abnormal noise due to the stick-slip phenomenon and the prevention of the intrusion of foreign matter such as insects and dust. Moreover, in consideration of manufacturing variations in the base 220, manufacturing variations in the outer shell portion 270, and assembly variations in the lamp 200, it is preferable that a plurality of contact portions 251 are provided along the longitudinal direction X in the same base-side contact region.

[0064] When multiple contact portions 251 are provided in the same base-side contact region, they are preferably provided in accordance with the degree of difference in shrinkage between the outer shell portion 270 and the base 220 in the longitudinal direction X. In other words, contact portions 251 are provided in a portion where the degree of difference in shrinkage between the outer shell portion 270 and the base 220 is large, so that the sliding portion between the outer shell portion 270 and the base 220 is smaller than in a portion where the degree of difference in shrinkage between the outer shell portion 270 and the base 220 is small.

[0065] For example, assume that the outer shell 270 is attached to the base 220 so that the difference in contraction between the outer shell 270 and the base 220 increases with increasing distance from the center in the longitudinal direction X to both ends. In such a case, the number of contact parts 251 is reduced or the total dimension of the contact parts 251 within the specified length in the longitudinal direction X is reduced so that the sliding area between the outer shell 270 and the base 220 becomes smaller with increasing distance from the center to both ends in the longitudinal direction X.

[0066] Also, for example, assume that the outer shell 270 and the base 220 are fixed to each other on the side of one end in the longitudinal direction X. In such a case, the number of contact parts 251 is reduced or the total dimension of the contact parts 251 within the specified length in the longitudinal direction X is reduced so that the sliding part between the outer shell 270 and the base 220 becomes smaller as it approaches the other end from the one end in the longitudinal direction X.

[0067] Also, for example, assume that a factor such as a heat source is disposed that locally increases the difference in contraction between the outer shell 270 and the base 220. In such a case, adjustments are made to reduce the number of contact parts 251 or reduce the total dimension of the contact parts 251 within the specified length in the longitudinal direction X so that the sliding part between the outer shell 270 and the base 220 becomes smaller as the factor approaches. For example, the power supply unit 330 is an example of a factor that locally increases the difference in contraction between the outer shell 270 and the base 220 because it is a local heat source.

[0068] The above-described configurations of the base side contact area and the outer shell side contact area are merely examples. For example, the base side contact area and the outer shell side contact area may be configured as follows.

[0069] For example, in the above description, the contact portion 251 provided in the base side contact region is generally elliptical truncated cone shape. However, this is not limited thereto, and the contact portion 251 may be formed in a generally truncated cone shape other than the generally elliptical truncated cone shape, such as a truncated cone shape or a truncated pyramid shape. Furthermore, for example, the contact portion 251 may be formed in a pyramid shape, such as an elliptical cone shape, a cone shape or a pyramid shape. Furthermore, for example, the contact portion 251 may be formed in a dome shape. Furthermore, the processing for forming the contact portion 251 is not limited to embossing, and may be processing such as cutting and raising or cutting and drawing.

[0070] Figures 10 to 12 are partial cross-sectional views showing another example of a lighting fixture according to embodiment 1. These Figures 10 to 12 are partial cross-sectional views of another example of the lighting fixture 200, taken at the same position as part A shown in Figure 6, observed in the longitudinal direction X.

[0071] In the luminaire 200 shown in the figures before FIG. 9, the tip 292 protruding toward the first surface 231 of the base 230 is the outer shell side contact area. However, as shown in FIGS. 10 to 12, the tip 292 parallel to the first surface 231 of the base 230 may be the outer shell side contact area. In other words, the outer shell side contact area may be a flat surface. By forming the tip 292 in this manner, the shape of the second attachment portion 293 is simplified, and the moldability of the outer shell 270 is improved. In addition, since the second attachment portion 293 can be disposed close to the base 230 of the pedestal 220, the light distribution performance in the short direction Y of the luminaire 200 is improved.

[0072] 11 illustrates a dome-shaped contact portion 251. The dome-shaped contact portion 251 has a U-shaped cross section with the longitudinal direction X as the normal direction. The dome-shaped contact portion 251 can reduce the contact area between the base 220 and the outer shell portion 270 even in combination with the tip portion 292 parallel to the first surface 231.

[0073] 12 illustrates a cone-shaped contact portion 251. The cone-shaped contact portion 251 has a V-shaped cross section with the longitudinal direction X as the normal direction. Even in combination with the tip portion 292 parallel to the first surface 231, the cone-shaped contact portion 251 can reduce the contact area between the base 220 and the outer shell portion 270 to a theoretical minimum value.

[0074] Here, in a state where the outer shell part 270 is attached to the base 220, if there are multiple contact points between the base 220 and the outer shell part 270, it is preferable to provide the above-mentioned contact part 251 and non-contact part 252 at the multiple contact points. As described above, in the lamp 200 according to the present embodiment 1, the base part 230 of the base 220 and the first attachment part 291 of the outer shell part 270 are contact points, and the side part 240 of the base 220 and the second attachment part 293 of the outer shell part 270 are also contact points. In the lamp 200 according to the present embodiment 1, the contact part 251 and the non-contact part 252 are also provided at the contact point between the side part 240 of the base 220 and the second attachment part 293 of the outer shell part 270. Hereinafter, with reference to FIG. 13 described below together with the above-mentioned FIGS. 5 and 6, an example in which a contact portion 251 and a non-contact portion 252 are provided at the contact point between the side portion 240 of the base 220 and the second mounting portion 293 of the outer shell portion 270 will be described.

[0075] FIG. 13 is a partial cross-sectional view of part D shown in FIG. 6, observed in the longitudinal direction X. As shown in FIG. As described above, the reinforcing portion 295 protruding toward the side portion 240 of the base 220 is formed on the opposing surface portion 294 of the second mounting portion 293 of the mounting portion 290 over the entire area in the longitudinal direction X of the mounting portion 290. This reinforcing portion 295 serves as the outer shell side contact area. Also, the area of ​​the side portion 240 of the base portion 230 of the base 220 that faces the reinforcing portion 295 serves as the base side contact area. In the lighting device 200 according to the first embodiment, this base side contact area also includes the above-mentioned contact portion 251 and non-contact portion 252. When there are multiple contact points between the base 220 and the outer shell 270, the generation of abnormal noise due to the stick-slip phenomenon can be further suppressed by providing the above-mentioned contact portion 251 and non-contact portion 252 at the multiple contact points.

[0076] In the first embodiment, the base 220 itself is processed to form the contact portion 251 integral with the base 220. However, this is not limiting, and the contact portion 251, which is a separate part, may be disposed on the base 220. In addition, when the contact portion 251 is a separate part from the base 220, the contact portion 251 may be attached to the outer-shell side contact region of the outer shell 270.

[0077] As described above, the lamp 200 according to the first embodiment includes the light source unit 210, the base 220 to which the light source unit 210 is attached, and the outer shell unit 270 which has a light transmitting portion 281 through which the light emitted from the light source unit 210 passes and is attached to the base 220 so as to cover the light source unit 210. In addition, when the outer shell unit 270 is attached to the base 220, the base side contact region of the base 220 and the outer shell side contact region of the outer shell unit 270 are in contact with each other. The base side contact region and the outer shell side contact region have a shape that is long in one direction, the longitudinal direction X. One of the base side contact region and the outer shell side contact region includes at least one contact portion 251 that contacts the other of the base side contact region and the outer shell side contact region, and at least one non-contact portion 252 that is adjacent to the contact portion 251 in the longitudinal direction X and does not contact the other of the base side contact region and the outer shell side contact region.

[0078] As described above, the lamp 200 configured in this manner can suppress the generation of abnormal noise caused by the stick-slip phenomenon more than ever before.

[0079] Embodiment 2 The method of forming the contact portion 251 and the non-contact portion 252 is not limited to that of the first embodiment. For example, the contact portion 251 and the non-contact portion 252 may be formed as follows. Note that in the second embodiment, items that are not specifically described are the same as those in the first embodiment, and the same functions and configurations as those in the first embodiment are described using the same reference numerals.

[0080] Fig. 14 is a perspective cross-sectional view of a base according to embodiment 2. Fig. 15 is a perspective cross-sectional view of a lighting device according to embodiment 2. Fig. 16 is a partial cross-sectional view of part E shown in Fig. 15 observed in the longitudinal direction X. Fig. 17 is a cross-sectional view taken along line FF of Fig. 16.

[0081] In the lamp 200 according to the second embodiment, the region of the first surface 231 in the base 230 of the base 220 facing the tip 292 is also the base side contact region. This base side contact region includes a contact portion 251 and a non-contact portion 252. Here, in the second embodiment, the base 230 of the base 220 has a recess recessed in a direction away from the tip 292 of the first attachment portion 291. This recess becomes the non-contact portion 252 that does not contact the tip 292 that is the outer shell side contact region. In addition, the base 230 of the base 220 has a flat portion adjacent to the non-contact portion 252 in the longitudinal direction X. This portion becomes the contact portion 251 that comes into contact with the tip 292 that is the outer shell side contact region. The processing method and shape of the non-contact portion 252 are the same as those of the contact portion 251 shown in the first embodiment, except for the protruding direction.

[0082] Even if the contact portion 251 and the non-contact portion 252 are formed in this manner, the base side contact region contacts the outer shell side contact region at the contact portion 251 only in a part of the base side contact region and the outer shell side contact region in the longitudinal direction X. Therefore, the generation of abnormal noise due to the stick-slip phenomenon can be suppressed more than ever before.

[0083] Furthermore, even if the contact portion 251 and the non-contact portion 252 are formed in this manner, the base portion 230 of the seat 220 and the tip portion 292 of the attachment portion 290 are separated at the position of the non-contact portion 252, so that air can move through this portion. This makes it possible to efficiently dissipate the operating heat generated with the operation of the light-emitting portion 211 of the light source portion 210, and also has the effect of suppressing the temperature rise of the light-emitting portion 211. As a result, it is possible to further suppress the generation of abnormal noise due to the stick-slip phenomenon at the contact portion between materials having different thermal expansion coefficients.

[0084] Here, the non-contact portion 252 provided on the base 220 may be slightly recessed in a direction away from the outer shell side contact region. For example, the non-contact portion 252 provided on the base 230 may be slightly recessed in a direction away from the tip 292 of the attachment portion 290 with respect to the first surface 231 of the base 230. From the viewpoint of moldability of the base 220, in order to prevent the non-contact portion 252 from breaking, it is preferable that the dimension of the non-contact portion 252 recessed in a direction away from the outer shell side contact region is 10 times or less the thickness of the portion forming the base side contact region of the base 220. In the case of the non-contact portion 252 provided on the base 230, as shown in FIG. 17, the dimension H2 recessed in a direction away from the tip 292 of the attachment portion 290 is preferably 10 times or less the thickness T of the base 230. For example, when the thickness T of the base 230 is 0.5 mm, the recessed dimension H2 is preferably 5.0 mm or less.

[0085] From the viewpoint of preventing the intrusion of foreign matter such as insects and dust, it is preferable that the dimension of the separation between non-contact portion 252 and tip portion 292 is as small as possible. For example, the dimension of the recess in non-contact portion 252 in the direction away from the outer shell side contact region is preferably equal to or less than the thickness of the portion forming the base side contact region in base 220. In the case of non-contact portion 252 provided on base 230, the dimension H2 of the recess in the direction away from tip portion 292 of attachment portion 290 is preferably equal to or less than the thickness T of base 230.

[0086] FIG. 18 is a partial cross-sectional view of part G shown in FIG. 15 observed in the longitudinal direction X. As shown in FIG. In the lamp 200 according to the second embodiment, the region of the side portion 240 of the base 230 of the base 220 facing the reinforcing portion 295, which is the outer shell side contact region, i.e., the base side contact region, includes the contact portion 251 and the non-contact portion 252. In the base side contact region of the side portion 240, a recess recessed in a direction away from the reinforcing portion 295, which is the outer shell side contact region, serves as the non-contact portion 252. In addition, a flat portion adjacent to the non-contact portion 252 in the longitudinal direction X serves as the contact portion 251. As shown in the first embodiment, when there are multiple contact points between the base 220 and the outer shell 270, the generation of abnormal noise due to the stick-slip phenomenon can be further suppressed by providing the contact portions 251 and the non-contact portions 252 at the multiple contact points.

[0087] FIG. 19 is a perspective cross-sectional view of a lamp according to embodiment 2, in which the lamp is cut in a position different from that in FIG. 15 in the longitudinal direction X. In FIG. In the lamp 200 according to the second embodiment, the corner 260, which is the connection between the base 230 and the side 240 in the base 220, is configured to contact the inclined portion of the first mounting portion 291 of the outer shell 270. That is, in the second embodiment, the corner 260 of the base 220 is the base side contact area. Also, the inclined portion of the first mounting portion 291 of the outer shell 270 is the outer shell side contact area that contacts the base side contact area. Therefore, as can be seen from FIG. 14, FIG. 15, and FIG. 19, in the lamp 200 according to the second embodiment, a non-contact portion 252 that is recessed in a direction away from the inclined portion of the first mounting portion 291 is formed in a part of the corner 260 of the base 220. Note that the portion of the corner 260 of the base 220 that is not recessed in a direction away from the inclined portion of the first mounting portion 291 is the contact portion 251. As described above, when there are multiple contact points between the base 220 and the outer shell 270, the generation of abnormal noise due to the stick-slip phenomenon can be further suppressed by providing the contact parts 251 and the non-contact parts 252 at the multiple contact points. In addition, by forming such non-contact parts 252 at the corners 260 of the base 220, the bending angle between the base 230 and the side parts 240 can be stabilized, and the rigidity of the base 220 can also be improved.

[0088] Embodiment 3 Also, for example, the contact portion 251 and the non-contact portion 252 may be formed as in the present embodiment 3. Note that in the present embodiment 3, items that are not particularly described are the same as those in the embodiment 1 or 2, and the same functions and configurations as those in the embodiment 1 or 2 will be described using the same reference numerals.

[0089] FIG. 20 is a perspective cross-sectional view of a base according to the third embodiment. In the lamp 200 according to the third embodiment, a through hole is formed in a part of the base-side contact area of ​​the base 220. This through hole becomes a non-contact portion 252 that does not come into contact with the outer-shell-side contact area. Furthermore, in the base-side contact area of ​​the base 220, a flat portion exists adjacent to the non-contact portion 252 in the longitudinal direction X. This portion becomes a contact portion 251 that comes into contact with the outer-shell-side contact area.

[0090] Even if the contact portion 251 and the non-contact portion 252 are formed in this manner, the base side contact region contacts the outer shell side contact region at the contact portion 251 only in a part of the base side contact region and the outer shell side contact region in the longitudinal direction X. Therefore, the generation of abnormal noise due to the stick-slip phenomenon can be suppressed more than ever before.

[0091] In order to prevent the intrusion of foreign matter such as insects and dust, the through-holes of the non-contact portion 252 may be covered with a sheet member or the like from the side opposite the side facing the outer shell side contact area.

[0092] In the first to third embodiments, in a configuration in which the base 220 and the outer shell 270 are made of materials with different thermal expansion coefficients, a configuration has been described in which abnormal noise caused by the stick-slip phenomenon at the contact point between the base 220 and the outer shell 270 is suppressed when a temperature change occurs in the luminaire 200 and a temperature change around the luminaire 200 occurs with the start and stop of the lighting device 1. However, the temperature change is not limited to that occurring with the start and stop of the lighting device 1. Even if a temperature change occurs in the space in which the lighting device 1 is installed, regardless of the start and stop of the lighting device 1, the generation of abnormal noise caused by the stick-slip phenomenon can be suppressed. Furthermore, in a configuration in which the base 220 and the outer shell 270 have different hygroscopic properties and are made of materials with different amounts of expansion or contraction according to the amount of moisture absorption, even if a humidity change occurs in the space in which the lighting device 1 is installed, the generation of abnormal noise caused by the stick-slip phenomenon can be suppressed.

[0093] Although the first to third embodiments have been described above, two or more of these embodiments may be combined and implemented. Also, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined and implemented. In addition, these embodiments may be combined in any way possible, either as a whole or in part. [Explanation of symbols]

[0094] 1 lighting device, 2 mounting portion, 100 fixture, 110 fixture body, 111 top surface, 112 side surface, 113 inclined portion, 114 fixture end, 115 knockout portion, 116 luminaire housing portion, 117 spring, 118 terminal block, 119 fixture side electric wire, 200 luminaire, 210 light source portion, 211 light emitting portion, 212 board, 213 first surface, 214 second surface, 215 power supply line insertion portion, 220 pedestal, 230 base portion, 231 first surface, 232 second surface, 233 connector mounting hole, 234 connector fixing portion, 235 power supply fixing portion, 236 screw insertion hole, 240 side portion, 241 outer surface, 251 contact portion, 252 non-contact portion, 260 Corner portion, 270 outer shell portion, 271 end portion, 280 main portion, 281 light-transmitting portion, 290 mounting portion, 291 first mounting portion, 292 tip portion, 293 second mounting portion, 294 opposing surface portion, 295 reinforcing portion, 310 power supply line, 320 holder, 321 first holder, 322 second holder, 330 power supply portion, 331 power supply device, 332 input terminal, 333 output terminal, 334 power supply case, 335 power supply portion side electric wire, 341 spring holder, 343 fixing device.

Claims

1. A light source unit; A base on which the light source unit is attached; an outer shell portion that covers the light source portion and has a light transmitting portion through which light emitted from the light source portion passes and an attachment portion that is attached to the base; Equipped with a lamp in which, when the outer shell portion is attached to the base, a base-side contact area of ​​the base comes into contact with an outer shell-side contact area of ​​the outer shell portion, The base side contact area and the outer shell side contact area are elongated in one direction, One of the base side contact area and the outer shell side contact area is the base-side contact area and the outer-shell-side contact area have at least one contact portion formed continuously along the one direction so as to protrude toward the other of the base-side contact area and the outer-shell-side contact area, One of the contact points is formed over the entire area of ​​the attachment portion in the one direction, The other of the base side contact area and the outer shell side contact area is A lighting fixture having at least one contact portion that contacts one of the contact locations, and at least one non-contact portion that is adjacent to the contact portion along the one direction and does not contact the contact location.

2. The lamp according to claim 1 , wherein a plurality of the contact portions are provided along the one direction.

3. 3. The lamp according to claim 1, wherein a total dimension of the contact portion in the one direction is smaller than a dimension of the base-side contact region in the one direction.

4. The lamp according to claim 1 , wherein a total dimension of the contact portion in the one direction is smaller than a dimension of the outer shell side contact region in the one direction.

5. The lamp according to claim 1 , wherein a plurality of the non-contact portions are provided along the one direction of the base-side contact area.

6. The lamp according to claim 1 , wherein a total dimension of the non-contact portion in the one direction is smaller than a dimension of the base-side contact region in the one direction.

7. The lamp according to claim 1 , wherein a total dimension in the one direction of the non-contact portion is smaller than a dimension in the one direction of the outer shell side contact region.

8. The lamp according to claim 1 , wherein the base-side contact area comprises the contact portion and the non-contact portion.

9. The lamp according to claim 8 , wherein the contact portion is a protrusion that protrudes toward the outer shell side contact region.

10. The lamp according to claim 9 , wherein a height of the contact portion that protrudes toward the outer shell side contact region is 10 times or less a thickness of a portion of the base that forms the base side contact region.

11. 11. The lamp according to claim 9, wherein a height of the contact portion that protrudes toward the outer shell side contact region is equal to or smaller than a thickness of a portion of the base that forms the base side contact region.

12. The lamp according to claim 8 , wherein the non-contact portion is a recess that is recessed in a direction away from the outer shell side contact area.

13. The lamp according to claim 12, wherein a dimension of the non-contact portion that is recessed in a direction away from the outer shell side contact region is 10 times or less a thickness of a portion of the base that forms the base side contact region.

14. 14. The lamp according to claim 12 or 13, wherein a dimension of the non-contact portion that is recessed in a direction away from the outer shell side contact area is equal to or smaller than a thickness of a portion of the base that forms the base side contact area.

15. A lamp according to any one of claims 1 to 14, and a fixture to which the lamp is detachably attached.

Images