Socket unit and lighting device

Abstract

To provide a socket unit which can be downsized, and a lighting apparatus.SOLUTION: A socket unit 1 comprises a socket main body 10 and a terminal connection member 20. The socket main body 10 is formed in a case shape including one face 10a and another face 10b. The socket main body 10 includes a pair of terminal insertion holes 11, a recess 12, and a power line insertion hole 102. The pair of terminal insertion holes 11 are disposed on the one face 10a. A pair of terminals 340 of a light source unit 300 are inserted into the pair of terminal insertion holes 11, respectively. The recess 12 is disposed between the pair of terminal insertion holes 11. A protrusion 330 of the light source unit 300 is disposed in the recess 12. The power line insertion hole 102 is disposed on the other face 10b. A power line 900 connected to the terminal connection member 20 is inserted into the power line insertion hole 102. The terminal connection member 20 is electrically connected to the terminals 340 inserted into the terminal insertion holes 11.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a socket unit and a lighting device. [Background technology]

[0002] Conventionally, socket units to which a light source unit is detachably attached have been known (see, for example, Patent Document 1). Patent Document 1 describes a socket having a pair of terminal insertion holes into which a pair of terminals of the light source unit are respectively inserted, and a recess disposed between the pair of terminal insertion holes and into which a protruding portion of the light source unit is disposed. The socket is provided with a power terminal to which an electric wire is connected. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-181432 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, a wire insertion hole into which an electric wire is inserted is formed on the radial outer surface of the socket. The electric wire is then inserted into the wire insertion hole of the socket from the radial outside and connected to a power terminal. Therefore, it is necessary to secure space around the socket to route the electric wire, making it difficult to miniaturize the socket unit including the socket. This leads to a deterioration in the design of the lighting device. Furthermore, since it is difficult to miniaturize the socket unit, it also makes it difficult to miniaturize the lighting device. This leads to an increase in the costs of the socket unit and the lighting device.

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a socket unit and a lighting device that can be made smaller. [Means for solving the problem]

[0006] The socket unit disclosed in the present application has a light source unit detachably attached thereto. The socket unit includes a socket body and a terminal connecting member. The socket body is case-shaped with one side and the other side. The terminal connecting member is disposed inside the socket body. The socket body further includes a pair of terminal insertion holes, a recess, and a power line insertion hole. The pair of terminal insertion holes are disposed on the one side. A pair of terminals of the light source unit are inserted into the pair of terminal insertion holes, respectively. The recess is disposed between the pair of terminal insertion holes. A protrusion of the light source unit is disposed in the recess. The power line insertion hole is disposed on the other side. A power line connected to the terminal connecting member is inserted into the power line insertion hole. The terminal connecting member is electrically connected to the terminals inserted into the terminal insertion holes.

[0007] In the socket unit disclosed herein, the recess has an inner surface that covers an outer periphery of the protrusion, and the power line insertion hole is located inside the inner surface when viewed from the insertion direction of the protrusion into the recess.

[0008] In the socket unit disclosed herein, the socket body may have a first member on which the one surface is disposed and a second member on which the other surface is disposed. The first member may have a socket base and a tubular portion. The tubular portion may be disposed in the socket base and define the recess. The pair of terminal insertion holes and the recess may be arranged side by side in a first direction. The length of the socket base in a second direction intersecting the first direction may be shorter than the length of the tubular portion in the second direction.

[0009] The lighting device disclosed in the present application includes the socket unit described above and a light source unit detachably attached to the socket unit. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a socket unit and a lighting device that can be made compact. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is an exploded perspective view showing a lighting device including a socket unit and a light source unit according to an embodiment of the present invention, viewed from the -Z direction. [Figure 2] 1 is an exploded perspective view showing a lighting device including a socket unit and a light source unit according to an embodiment of the present invention, viewed from the +Z direction. [Figure 3] FIG. 2 is a bottom view showing the structure of the socket unit according to the embodiment of the present invention. [Figure 4] 1 is a plan view showing the structure of a socket unit according to an embodiment of the present invention; [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] 1 is a perspective view showing a structure around a terminal connecting member of a socket unit according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals, and description thereof will not be repeated. In addition, in the drawings, the Z axis is appropriately indicated to facilitate understanding. As an example, the Z axis is parallel to the vertical direction. The positive direction of the Z axis indicates the vertically upward direction, and the negative direction of the Z axis indicates the vertically downward direction.

[0013] An illumination device 500 including a socket unit 1 according to an embodiment of the present invention will be described with reference to Figures 1 to 8. Figure 1 is an exploded perspective view of the illumination device 500 including the socket unit 1 and light source unit 300 according to an embodiment of the present invention, viewed from the -Z direction (here, from below). Figure 2 is an exploded perspective view of the illumination device 500 including the socket unit 1 and light source unit 300 according to an embodiment of the present invention, viewed from the +Z direction (here, from above).

[0014] 1 and 2, the lighting device 500 is attached to, for example, a ceiling or a wall. The lighting device 500 may be attached directly to the ceiling or the wall, or may be attached to a lighting attachment portion such as a stat provided on the ceiling or the wall, or may be attached to a downlight body embedded in the ceiling. In this embodiment, the lighting device 500 is a ceiling light attached directly to the ceiling.

[0015] The lighting device 500 includes a light source unit 300. The light source unit 300 has a light source (not shown) such as an LED element, and emits light. The light source unit 300 has a housing 310 and a cover 320.

[0016] The housing 310 has, for example, a generally cylindrical shape with a lid. The housing 310 is made of, for example, an insulating resin material such as PBT (polybutylene terephthalate). The housing 310 is, for example, opaque to light.

[0017] The cover 320 is disposed at the end of the housing 310 in the -Z direction. The cover 320 has, for example, a substantially circular disk shape. The cover 320 is made of, for example, a resin material such as acrylic (PMMA) or polycarbonate (PC). The cover 320 transmits light. The cover 320 may have a transparent structure that does not have light diffusion properties, or may have a diffusing structure that has light diffusion properties. For example, the cover 320 can be configured to have a milky white light diffusion film by applying a resin containing a light diffusion material such as silica or calcium carbonate or a white pigment to the inner surface of the cover 320, or by forming minute irregularities on the cover 320.

[0018] For ease of explanation, a center line AX is illustrated in FIG. 1. The center line AX is a virtual line passing through the centers of the socket unit 1 and the light source unit 300. The center line AX is approximately perpendicular to one surface 10a and the other surface 10b of the socket unit 1, which will be described later. Hereinafter, a direction perpendicular to the center line AX will be referred to as the "radial direction RD." The "radial direction RD" may be any direction as long as it is a direction perpendicular to the center line AX, and is not particularly limited. Furthermore, a direction along an arc centered on the center line AX will be referred to as the "circumferential direction CD." The +Z direction and the -Z direction are, for example, approximately parallel to the center line AX.

[0019] The housing 310 has a top plate 311 and a side wall 312. The top plate 311 is disposed at the end of the side wall 312 in the +Z direction. The top plate 311 has, for example, a substantially circular plate shape. A cover 320 is disposed on the -Z direction side of the side wall 312.

[0020] The light source unit 300 further includes a protrusion 330 and a pair of terminals 340 .

[0021] The protruding portion 330 protrudes from the top plate 311 in the +Z direction. The protruding portion 330 has, for example, a substantially cylindrical shape with a cap or a substantially cylindrical shape. In this embodiment, the protruding portion 330 has a substantially cylindrical shape with a cap. The material of the protruding portion 330 is, for example, the same as the material of the housing 310. In this embodiment, the protruding portion 330 and the housing 310 are integrally formed using a molding die. Note that the protruding portion 330 and the housing 310 may also be formed as separate bodies.

[0022] The protruding portion 330 has a pair of first engaging portions 350. The pair of first engaging portions 350 face each other in the radial direction RD. The first engaging portions 350 are recesses recessed inward in the radial direction RD from the outer circumferential surface of the protruding portion 330. The first engaging portions 350 have, for example, a substantially L-shape. The first engaging portions 350 are disposed at positions offset from the terminal 340 in the circumferential direction CD.

[0023] The pair of terminals 340 are conductive members for supplying power to the light source unit 300. The terminals 340 are formed, for example, from a conductive metal. The pair of terminals 340 are arranged on the housing 310. Each of the pair of terminals 340 protrudes from the top plate 311 in the +Z direction. The pair of terminals 340 face each other across the protruding portion 330. The terminals 340 are, for example, lamp pins.

[0024] Each of the pair of terminals 340 has a first cylindrical portion 341 and a second cylindrical portion 342. The first cylindrical portion 341 extends in the +Z direction. The first cylindrical portion 341 has a generally cylindrical shape. The first cylindrical portion 341 protrudes in the +Z direction from the top plate 311. The second cylindrical portion 342 protrudes in a direction generally parallel to the radial direction RD from the end of the first cylindrical portion 341 in the +Z direction. The second cylindrical portion 342 has a generally disk shape or a generally cylindrical shape.

[0025] The protrusion 330 and the pair of terminals 340 form a base portion of the light source unit 300. The base portion of the light source unit 300 is, for example, a GX53 type specified by the Japanese Industrial Standards.

[0026] 1 and 2, the socket unit 1 of the lighting device 500 will be described. As shown in FIGS. 1 and 2, the lighting device 500 further includes the socket unit 1. The light source unit 300 is detachably attached to the socket unit 1. Specifically, a pair of terminals 340 of the light source unit 300 are connected to the socket unit 1.

[0027] The socket unit 1 has a case-shaped socket body 10 and a terminal connecting member 20 (see FIG. 3). The socket body 10 is formed hollow. The socket body 10 is a case that houses the terminal connecting member 20 therein. That is, the terminal connecting member 20 is disposed inside the socket body 10. In this embodiment, the case (socket body 10) that houses the terminal connecting member 20 also serves as a socket to which the light source unit 300 is attached. The socket body 10 is made of an insulating resin material such as PBT. The terminal connecting member 20 is electrically connected to a power line 900 (see FIG. 7) that is arranged in the ceiling or behind the wall. The power line 900 is, for example, a VVF (Vinyl insulated Vinyl sheathed Flat-type cable) wire.

[0028] The socket body 10 has one surface 10a and the other surface 10b. The one surface 10a is disposed in the −Z direction of the socket body 10. The other surface 10b is disposed in the +Z direction of the socket body 10.

[0029] FIG. 3 is a bottom view showing the structure of the socket unit 1 according to the embodiment of the present invention. The socket body 10 has a pair of terminal insertion holes 11, a recess 12, and a pair of second engagement portions 13. The pair of terminal insertion holes 11 are arranged on one surface 10a. A pair of terminals 340 of the light source unit 300 are inserted into the pair of terminal insertion holes 11, respectively. Each terminal insertion hole 11 has a circular hole 11a and an elongated hole 11b communicating with the circular hole 11a. The terminals 340 of the light source unit 300 can be inserted into the circular hole 11a. The circular hole 11a is formed to a size that allows the terminals 340 of the light source unit 300 to be inserted therein. Specifically, the circular hole 11a is formed to a size that allows the second cylindrical portions 342 of the terminals 340 to be inserted therein. The elongated hole 11b extends from the circular hole 11a in the circumferential direction CD. The elongated hole 11b is formed to a size that prevents the insertion of the terminal 340 of the light source unit 300. Specifically, the elongated hole 11b is formed to a size that prevents the insertion of the second cylindrical portion 342 of the terminal 340. On the other hand, the elongated hole 11b is formed to a size that allows the first cylindrical portion 341 of the terminal 340 to move in the circumferential direction CD.

[0030] The recess 12 is arranged on one surface 10a. The recess 12 is arranged between a pair of terminal insertion holes 11. In this embodiment, the pair of terminal insertion holes 11 and the recess 12 are arranged side by side in a first direction D1. The first direction D1 is a direction intersecting the Z-axis direction. The protrusion 330 of the light source unit 300 is arranged in the recess 12. The recess 12 positions the light source unit 300 when the light source unit 300 is attached to the socket unit 1.

[0031] The pair of second engagement portions 13 are arranged on an inner surface 12a (described later) of the recess 12. Each second engagement portion 13 protrudes inward in the radial direction RD. The pair of second engagement portions 13 face each other in the radial direction RD. The second engagement portions 13 are arranged at positions offset in the circumferential direction CD with respect to the terminal insertion hole 11.

[0032] Next, a description will be given of a method for attaching the light source unit 300 to the socket unit 1. When attaching the light source unit 300 to the socket unit 1, the light source unit 300 is attached to the socket unit 1 that is attached to a ceiling or a wall.

[0033] First, the protrusion 330 of the light source unit 300 is inserted into the recess 12 of the socket unit 1. Then, the pair of terminals 340 of the light source unit 300 are inserted into the pair of circular holes 11a of the socket unit 1, respectively. At this time, the second engagement portion 13 of the socket unit 1 is inserted into the first engagement portion 350 of the light source unit 300. Then, by rotating the light source unit 300 in the circumferential direction CD, the terminal 340 of the light source unit 300 moves along the elongated hole 11b of the socket unit 1. At this time, the terminal 340 comes into contact with the terminal connecting member 20. That is, the terminal connecting member 20 is electrically connected to the terminal 340 inserted into the terminal insertion hole 11. Then, power can be supplied to the light source unit 300 from the power line 900 (see FIG. 7 ). At this time, the second engagement portion 13 of the socket unit 1 engages with the first engagement portion 350 of the light source unit 300 in the Z-axis direction. This prevents the light source unit 300 from falling off the socket unit 1.

[0034] Next, the structure of the socket unit 1 will be further described with reference to Figures 1 to 4. Figure 4 is a plan view showing the structure of the socket unit 1 according to the embodiment of the present invention.

[0035] As shown in FIGS. 1 to 4, the socket body 10 has a first member 110 on which one surface 10a is disposed, and a second member 120 on which the other surface 10b is disposed.

[0036] As shown in FIGS. 1 and 3, the first member 110 has a bottom surface portion 111 on which one surface 10a is disposed, and a side wall portion 112 standing in the +Z direction from the periphery of the bottom surface portion 111. The surface of the first member 110 facing the -Z direction is the one surface 10a. The bottom surface portion 111 is formed in a substantially rectangular shape. The terminal insertion hole 11 is formed in the bottom surface portion 111. The side wall portion 112 is formed in a tubular shape that is substantially rectangular in cross section.

[0037] 2 and 4, the second member 120 has an upper surface portion 121 on which the other surface 10b is disposed, and a side wall portion 122 standing in the -Z direction from the periphery of the upper surface portion 121. The surface of the second member 120 in the +Z direction is the other surface 10b. The upper surface portion 121 is formed in a substantially rectangular shape.

[0038] Fig. 5 is a cross-sectional view taken along line VV in Fig. 4. As shown in Fig. 5, the first member 110 and the second member 120 form an internal space S1 for accommodating the terminal connecting member 20.

[0039] 3 and 5, in this embodiment, the socket body 10 further has a screw insertion hole 101 into which a first screw 151 is inserted. The screw insertion hole 101 penetrates the socket body 10. The first screw 151 is a screw for attaching the socket unit 1 to a ceiling or a wall.

[0040] Specifically, the recess 12 has an inner surface 12a that covers the outer periphery of the protrusion 330 and a back surface 12b that extends in a direction intersecting the inner surface 12a (here, substantially horizontally). The screw insertion hole 101 is disposed in the back surface 12b. The screw insertion hole 101 penetrates from the back surface 12b to the other surface 10b. By providing the screw insertion hole 101 that penetrates the socket body 10 from the back surface 12b to the other surface 10b in this manner, the socket body 10 can be attached to a ceiling or wall using a first screw 151. Furthermore, the socket body 10 can be made more compact than when the screw insertion hole 101 is disposed outside the recess 12 in the radial direction RD. Therefore, the socket unit 1 can be made more compact, thereby improving the design of the lighting device 500. Furthermore, since the socket unit 1 can be made more compact, the lighting device 500 can be made more compact. Therefore, an increase in the costs of the socket unit 1 and the lighting device 500 can be suppressed.

[0041] More specifically, in this embodiment, the screw insertion hole 101 has a head accommodating portion 101a in which the screw head 151a of the first screw 151 is disposed, and a through hole 101b into which the threaded portion 151b of the first screw 151 is inserted. The through hole 101b is connected to the head accommodating portion 101a. The head accommodating portion 101a has an inner diameter larger than the outer diameter of the threaded portion 151b of the first screw 151. Furthermore, the through hole 101b is formed by the through hole 113 of the first member 110 and the through hole 123 of the second member 120.

[0042] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 4. As shown in FIG. 6, the first member 110 and the second member 120 are fixed to each other by a second screw 152. Specifically, the first member 110 has a first screw hole 114 into which the second screw 152 is inserted. The second member 120 has a second screw hole 124 into which the second screw 152 is inserted. The first screw hole 114 is disposed on the innermost surface 12b of the recess 12. Therefore, the socket body 10 can be made smaller than when the first screw hole 114 is disposed on the outer side in the radial direction RD of the recess 12. Therefore, the socket unit 1 can be made smaller, thereby further improving the design of the lighting device 500. Furthermore, the socket unit 1 can be made smaller, thereby enabling the lighting device 500 to be made smaller. Therefore, an increase in the costs of the socket unit 1 and the lighting device 500 can be suppressed.

[0043] Specifically, in this embodiment, the first member 110 has a head accommodating portion 115 in which the screw head 152a of the second screw 152 is disposed. The head accommodating portion 115 is connected to the first screw hole 114. The first screw hole 114 has an inner diameter larger than the outer diameter of the threaded portion 152b of the second screw 152. A screw thread (not shown) is formed on the inner surface of the second screw hole 114.

[0044] 1 to 3, the first member 110 has a socket base 116 and a tubular portion 117. The tubular portion 117 is disposed in the socket base 116. The tubular portion 117 forms the recess 12. The socket base 116 is formed in a substantially rectangular parallelepiped shape. The length L1 of the socket base 116 in the first direction D1 is longer than the length L2 of the socket base 116 in the second direction D2 intersecting with the first direction D1. The length L2 of the socket base 116 in the second direction D2 is shorter than the length L3 of the tubular portion 117 in the second direction D2. This prevents the socket base 116 from becoming larger in both the first direction D1 and the second direction D2. This prevents the socket body 10 from becoming larger in size.

[0045] The screw insertion holes 101 are provided as a pair, aligned in the first direction D1. In other words, the screw insertion holes 101 are provided as a pair, aligned in the longitudinal direction of the socket base 116. Therefore, the distance between the pair of screw insertion holes 101 can be easily ensured. This makes it possible, for example, to place another member, such as the terminal connecting member 20 or a release member 26 (described later), between the pair of screw insertion holes 101. Furthermore, for example, because the distance between the first screws 151 can be easily ensured, the socket body 10 can be easily and stably fixed to the ceiling or wall.

[0046] Fig. 7 is a cross-sectional view taken along line VII-VII in Fig. 4. As shown in Figs. 2, 4, and 7, the socket body 10 has a power line insertion hole 102 into which a power line 900 arranged in the ceiling, behind a wall, or the like is inserted. The power line insertion hole 102 connects the outside to the inside of the socket body 10. When inserted into the power line insertion hole 102, the power line 900 comes into contact with the terminal connection member 20. This allows power to be supplied from the power line 900 to the lighting device 500. In this way, in this embodiment, power is supplied to the lighting device 500 directly from the power line 900 without going through a terminal block (not shown).

[0047] The power line insertion hole 102 is disposed on the other surface 10b of the socket body 10. The power line insertion hole 102 penetrates the upper surface portion 121 of the second member 120.

[0048] As described with reference to FIG. 7 , the power line insertion hole 102 into which the power line 900 connected to the terminal connecting member 20 is inserted is disposed on the other surface 10b of the socket body 10. Therefore, unlike when the power line 900 is connected to the terminal connecting member 20 from the outside in the radial direction RD, for example, there is no need to ensure space for routing the power line 900 around the periphery of the socket body 10 (outside the radial direction RD). This allows the socket unit 1 to be made smaller. Therefore, since the socket unit 1 can be made smaller, the design of the lighting device 500 can be improved. Furthermore, since the socket unit 1 can be made smaller, the lighting device 500 can be made smaller. Therefore, an increase in the costs of the socket unit 1 and the lighting device 500 can be suppressed.

[0049] 2 and 4, the pair of power line insertion holes 102 are disposed inside the rear surface 12b of the recess 12 when viewed from the insertion direction (Z-axis direction) in which the protrusion 330 is inserted into the recess 12. In other words, the pair of power line insertion holes 102 are disposed inside the inner surface 12a of the recess 12 when viewed from the Z-axis direction. Therefore, the socket body 10 can be made smaller than when the pair of power line insertion holes 102 are disposed outside the inner surface 12a.

[0050] The pair of power line insertion holes 102 are arranged adjacent to each other. The pair of power line insertion holes 102 are also arranged side by side in the second direction D2. In other words, the pair of power line insertion holes 102 are arranged side by side in a direction (second direction D2) that intersects with the direction (first direction D1) in which the pair of terminal insertion holes 11 and recesses 12 are arranged side by side. The pair of power line insertion holes 102 are also arranged side by side in a direction (second direction D2) that intersects with the direction (first direction D1) in which the pair of screw insertion holes 101 are arranged side by side.

[0051] The pair of power line insertion holes 102 are also positioned near the center line AX. Specifically, the pair of power line insertion holes 102 are positioned closer to the center line AX than the pair of screw insertion holes 101. The pair of power line insertion holes 102 are also positioned closer to the center line AX than a pair of third screw holes 118, which will be described later.

[0052] Fig. 8 is a perspective view showing the structure around the terminal connecting member 20 of the socket unit 1 according to the embodiment of the present invention. Note that, for ease of understanding, the first member 110, the second member 120, etc. are omitted from Fig. 8. As shown in Fig. 8, the terminal connecting member 20 is formed by bending a metal plate. The terminal connecting member 20 has a terminal connecting portion 21, a power line connecting portion 22, and a linking portion 23.

[0053] As shown in FIG. 5, the terminal connection portion 21 is disposed above and in the vicinity of the terminal insertion hole 11. The terminal connection portion 21 contacts the terminal 340 (see FIG. 2) of the light source unit 300, thereby electrically connecting to the terminal 340. As shown in FIG. 7, the power line connection portion 22 is disposed below the power line insertion hole 102. The power line connection portion 22 contacts the power line 900, thereby electrically connecting to the power line 900. As shown in FIG. 8, the coupling portion 23 couples the terminal connection portion 21 and the power line connection portion 22. The coupling portion 23 is bent so as to avoid each portion of the first member 110 and the second member 120. Therefore, the socket unit 1 of this embodiment does not include a harness for connecting the terminal connection portion 21 and the power line connection portion 22.

[0054] The socket unit 1 also includes a pair of biasing members 25. The biasing members 25 are formed to have spring properties by, for example, bending a metal plate. In this embodiment, the biasing members 25 and the power line connecting portions 22 form a quick-connect terminal. Specifically, the biasing members 25 face the terminal connecting members 20. The pair of biasing members 25 are disposed opposite the power line connecting portions 22 of the pair of terminal connecting members 20, respectively. The biasing members 25 are disposed with a gap between them and the power line connecting portions 22. The biasing members 25 are disposed below the power line insertion holes 102. The biasing members 25 bias the power line 900 toward the power line connecting portions 22. When the power line 900 is inserted into the power line insertion holes 102 by an operator, the biasing members 25 bias the power line 900 toward the power line connecting portions 22. The power line 900 is then held by the biasing members 25 and the power line connecting portions 22. As a result, the terminal connecting member 20 is electrically connected to the power line 900.

[0055] In this way, by forming a quick-connect terminal using the power line connecting portion 22 and the biasing member 25, the power line 900 can be easily connected to the power line connecting portion 22. This simplifies the installation work of the socket unit 1 by an operator. In particular, since the pair of power line insertion holes 102 are arranged adjacent to each other, the power line 900 can be easily inserted into the pair of power line insertion holes 102.

[0056] In this embodiment, the biasing member 25 and the power line connection portion 22 are disposed opposite to each other in the first direction D1. The biasing member 25 biases the power line 900 in the first direction D1. The power line connection portion 22 extends in the second direction D2 and the Z-axis direction.

[0057] The pair of power line connecting portions 22 are arranged side by side in the second direction D2. The pair of power line connecting portions 22 are also arranged at approximately the same position in the first direction D1. The pair of biasing members 25 are also arranged side by side in the second direction D2. The pair of biasing members 25 are also arranged at approximately the same position in the first direction D1.

[0058] The socket unit 1 also includes a release member 26. The release member 26 is configured to be movable in a direction along the biasing direction of the biasing member 25. In this embodiment, the release member 26 is configured to be movable in a first direction D1. That is, the release member 26 moves along the longitudinal direction of the socket body 10. Therefore, the release member 26 can be more easily disposed inside the socket body 10 than when the release member 26 is disposed so as to move along the lateral direction of the socket body 10 (second direction D2).

[0059] The release member 26 has a pressing portion 26a capable of pressing the pair of biasing members 25, and an operating portion 26b. When an operator applies a tool with a thin tip, such as a flat-head screwdriver, to the operating portion 26b from the other surface 10b side and presses and moves the release member 26 toward one side D11 in the first direction D1 (toward the biasing members 25), the pressing portion 26a of the release member 26 presses the biasing members 25 toward one side D11 in the first direction D1. This compresses and deforms the biasing members 25, increasing the gap between the biasing members 25 and the power line connecting portion 22. This releases the power line 900 from the biasing members 25 and the power line connecting portion 22, allowing the power line 900 to be removed from the socket unit 1.

[0060] 2, 4, and 6, the socket body 10 has a third screw hole 118. The third screw hole 118 is a screw hole for screwing the shade 400 provided in the lighting device 500 to the socket body 10. The shade 400 covers the periphery of the light source unit 300. A third screw 153 is inserted into the third screw hole 118. Note that the shade 400 is not essential to the lighting device 500.

[0061] In this embodiment, the third screw hole 118 is disposed on the other surface 10b. The third screw hole 118 is formed in the upper surface portion 121 of the second member 120. The third screw hole 118 does not have to penetrate the upper surface portion 121 as shown in FIG. 6, or may penetrate the upper surface portion 121.

[0062] 3 and 4, the third screw hole 118 is disposed inside the rear surface 12b when viewed from the insertion direction (Z-axis direction) in which the protrusion 330 is inserted into the recess 12. In other words, the third screw hole 118 is disposed on the inner side in the radial direction RD of the inner surface 12a when viewed from the Z-axis direction. Therefore, the socket body 10 can be made smaller than when the third screw hole 118 is disposed on the outer side in the radial direction RD of the inner surface 12a.

[0063] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments and can be embodied in various forms without departing from the spirit and scope of the present invention. The drawings mainly show each component in a schematic manner for ease of understanding, and the thickness, length, number, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples and are not particularly limited, and various modifications are possible within a scope that does not substantially depart from the effects of the present invention.

[0064] For example, in the above embodiment, the socket body 10 has only one pair of power line insertion holes 102, but the present invention is not limited to this. The socket body 10 may have one or three or more power line insertion holes 102.

[0065] In the above embodiment, the recess 12 has the inner surface 12a and the rear surface 12b, but the present invention is not limited to this. For example, the recess 12 may have the inner surface 12a but not the rear surface 12b.

[0066] In the above embodiment, the pair of power line insertion holes 102 are arranged on the inside of the inner surface 12a of the recess 12 when viewed from the insertion direction of the protrusion 30 into the recess 12, but the present invention is not limited to this. For example, the pair of power line insertion holes 102 may be arranged on the outside of the inner surface 12a when viewed from the insertion direction of the protrusion 30 into the recess 12.

[0067] In the above embodiment, the pair of power line insertion holes 102 are arranged side by side in the second direction D2, but the present invention is not limited to this. The pair of power line insertion holes 102 may be arranged side by side in a direction intersecting the second direction D2 (for example, the first direction D1).

[0068] In the above embodiment, the terminal connection member 20 is configured from a single member, but the present invention is not limited to this. That is, the terminal connection portion 21, the power line connection portion 22, and the linking portion 23 do not have to be configured from a single member. For example, the terminal connection portion 21 made of sheet metal and the power line connection portion 22 made of sheet metal may be electrically connected by a linking portion made of a conductor wire.

[0069] In the above embodiment, an example in which the quick-connect terminal is formed of two members (biasing member 25 and power line connecting portion 22) has been shown, but the present invention is not limited to this. For example, the quick-connect terminal may be formed of a single member having a portion corresponding to biasing member 25 and a portion corresponding to power line connecting portion 22.

[0070] Furthermore, in the above embodiment, an example has been shown in which the first member 110 and the second member 120 are fixed to each other using screws, but the present invention is not limited to this. For example, the first member 110 and the second member 120 may be fixed to each other using members other than screws. Furthermore, the first member 110 and the second member 120 may be fixed to each other using elastically deformable engaging claws having a so-called snap-fit ​​structure. [Industrial Applicability]

[0071] The present invention is useful in the fields of socket units and lighting devices. [Explanation of symbols]

[0072] 1: Socket unit 10: Socket body 10a: One side 10b: Other side 11: Terminal insertion hole 12: Recess 12a: Inside surface 20: Terminal connection member 21: Terminal connection part 22: Power line connection 25: biasing member 102: Power line insertion hole 110: First member 116: Socket base 117:Cylinder part 120: Second member 300: Light source unit 330:Protrusion 340: Terminal 500: Lighting equipment 900: Power line D1: 1st direction D2 :Second direction L2, L3: Length

Claims

1. A socket unit to which a light source unit is detachably attached, a case-shaped socket body having one side and another side; a terminal connection member disposed inside the socket body; Equipped with The socket body is a first member and a second member on which the other surface is disposed, The first member is a socket base having a substantially rectangular parallelepiped shape in which the length in a first direction is longer than the length in a second direction intersecting the first direction, and on which the one surface is disposed; and a cylindrical portion; The first member has: a pair of terminal insertion holes provided in the socket base, the pair of terminals of the light source unit being inserted thereinto, the pair of terminal insertion holes being arranged side by side in the first direction on the one surface; a recessed portion configured by the tubular portion, the recessed portion being disposed between the pair of terminal insertion holes and into which the substantially cylindrical protrusion portion of the light source unit is inserted, a length of the socket base in the second direction is shorter than a length of the cylindrical portion in the second direction; The second member is a power line insertion hole disposed on the other surface and into which a power line connected to the terminal connection member is inserted; The terminal connection member is electrically connected to the terminal inserted into the terminal insertion hole.

2. the cylindrical portion constituting the recess has an inner surface covering an outer periphery of the protrusion, The socket unit according to claim 1 , wherein the power line insertion hole is disposed inside the inner surface when viewed from an insertion direction in which the protrusion is inserted into the recess.

3. a biasing member facing the terminal connecting member; the terminal connection member has a terminal connection portion connected to the terminal and a power supply line connection portion connected to the power supply line, the biasing member biases the power line to the power line connection portion, 3. The socket unit according to claim 1, wherein said power line connecting portion and said biasing member form a quick-connect terminal.

4. The socket unit according to any one of claims 1 to 3, a light source unit detachably attached to the socket unit; A lighting device comprising:

Images