Feeding socket and illumination device

Abstract

To improve the electrical connection between a feeding terminal and a conducting part.SOLUTION: A feeding socket 300 comprises a first insertion part 320, a conducting part 330, a guide part 340, and a pressing part 360. The first insertion part 320 has a first insertion hole 321 into which a feeding terminal 120 is inserted. The conducting part 330 is electrically connected to the feeding terminal. The guide part 340 has a guide hole 341 that is connected with the first insertion hole 321 and guides the feeding terminal from the first insertion part 320 to the conducting part 330. The pressing part 360 applies a pressing force in a direction opposite to an insertion direction to the feeding terminal, with the feeding terminal being located at a connection position. The feeding terminal is held at the connection position with the pressing force from the pressing part 360.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a power supply socket and a lighting device, and more particularly to a power supply socket that supplies power to a light unit and a lighting device that includes a power supply socket. [Background technology]

[0002] Conventionally, lighting devices configured by mounting a lamp unit in a socket have been known. For example, Patent Document 1 discloses a socket in which a power supply terminal pin provided on the lamp unit is sandwiched between a pair of terminal portions at the end of a pin groove provided on the socket, thereby simultaneously supporting and electrically connecting the lamp unit to the socket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2012 / 005244 Summary of the Invention [Problem to be solved by the invention]

[0004] In the socket (power supply socket) described in Patent Document 1, the pair of terminal portions (conductive portions) are conductive, so even before the power supply terminal pin (power supply terminal) is held by the pair of terminal portions at the end of the pin groove, the power supply terminal pin may come into contact with the pair of terminal portions, causing the lamp unit to light up. Therefore, if the power supply terminal pin is used without being held by the pair of terminal portions at the end of the pin groove, the electrical connection between the power supply terminal pin and the pair of terminal portions may be weakened.

[0005] The present disclosure aims to provide a power supply socket and a lighting device that can improve the electrical connection between the power supply terminal and the conductive portion. [Means for solving the problem]

[0006] A power feed socket according to one aspect of the present disclosure is a power feed unit that feeds power to a light source unit that includes a power feed terminal. The power feed unit includes an insertion portion, a conductive portion, a guide portion, and a pressing portion. The insertion portion has an insertion hole into which the power feed terminal is inserted. The conductive portion is electrically connected to the power feed terminal. The guide portion is connected to the insertion hole and has a guide hole that guides the power feed terminal from the insertion portion to the conductive portion. When the power feed terminal is located at a connection position where it is electrically connected to the conductive portion, the pressing portion applies a pressing force to the power feed terminal in a direction opposite to an insertion direction in which the power feed terminal is inserted into the insertion hole. The pressing force from the pressing portion holds the power feed terminal in the connection position.

[0007] An illumination device according to one aspect of the present disclosure includes the power feed socket and the light source unit detachably attached to the power feed socket. [Effects of the Invention]

[0008] According to the power feed socket and lighting device according to the above aspect, the electrical connection between the power feed terminal and the conductive portion can be improved. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a lighting device according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view of the lighting device. [Figure 3] FIG. 3 is a perspective view of a light source unit in the lighting device. [Figure 4] FIG. 4 is a front view of the power supply socket in the lighting device. [Figure 5] FIG. 5 is a rear view of the power supply socket in the lighting device. [Figure 6] FIG. 6 is a perspective view of a power supply socket in the lighting device. [Figure 7] FIG. 7 is a cross-sectional view of a power supply socket in the lighting device. [Figure 8] FIG. 8 is a cross-sectional view showing the relationship between the power supply terminal and the conductive portion in a lighting device according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, lighting sockets and lighting devices according to embodiments of the present disclosure will be described with reference to the drawings. Each of the embodiments described below represents a preferred specific example of the present disclosure. Therefore, the numerical values, materials, components, component arrangements, connection configurations, processes, and process sequences shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Therefore, in the following embodiments, components not recited in the independent claims that represent the overall concept of the present disclosure will be described as optional components. Note that the figures referenced in the following embodiments are schematic diagrams and are not necessarily rigorous illustrations. In other words, the size and thickness ratios of each component in the figures do not necessarily reflect the actual dimensional ratios.

[0011] (1) Description of the embodiment Hereinafter, a lighting device 1 according to an embodiment of the present disclosure will be described. Fig. 1 is a perspective view of the lighting device 1 according to the embodiment. Fig. 2 is a cross-sectional view of the lighting device 1 according to the embodiment. The lighting device 1 is, for example, a downlight that is recessed into the ceiling of a house or the like and emits light downward, but is not limited to a downlight and may be, for example, a spotlight.

[0012] 1 and 2, the lighting device 1 includes a light source unit 10 and a fixture body 20. The lighting device 1 also includes a terminal block 30 and a pair of mounting springs 40. The fixture body 20 has an attachment member 210, a cover member 220, and a power feed socket 300. That is, the lighting device 1 includes the power feed socket 300 and the light source unit 10 that is detachably attached to the power feed socket 300. Each component of the lighting device 1 will be described in detail below.

[0013] In the following description, the front-rear, left-right, and up-down directions indicated by arrows in Fig. 1 are defined as the front-rear, left-right, and up-down directions of the lighting device 1 and its components. However, these directions are not intended to limit the directions of the lighting device 1 and its components when in use. Furthermore, the arrows indicating "front," "rear," "left," "right," "up," and "down" in Fig. 1 are merely shown for the purpose of explanation and do not have any physical substance.

[0014] (1.1) Light source unit FIG. 3 is a perspective view of the light source unit 10 in the lighting device 1 according to the embodiment. As shown in FIG. 3, the light source unit 10 has a main body 110, a plurality of (two in the illustrated example) power supply terminals 120, a protrusion 130, and a light source (not shown). The light source has, for example, one or more LEDs (Light Emitting Diodes). As shown in FIG. 2, the light source unit 10 is detachably attached to a power supply socket 300. External commercial power is input to the power supply socket 300 via a power cable. The power input to the power supply socket 300 is supplied to the light source unit 10.

[0015] The main body 110 is formed in a cylindrical shape with its axis extending in the vertical direction. The main body 110 has a base surface 111. The base surface 111 is the upper surface of the main body 110 and has a circular shape when viewed from above. As will be described later, a plurality of power supply terminals 120 and protrusions 130 are provided on the base surface 111.

[0016] 3, each of the multiple power supply terminals 120 is provided to extend upward from the base surface 111 of the main body 110. Each power supply terminal 120 is a power supply terminal that receives power from outside the light source unit 10 to cause the light source section of the light source unit 10 to emit light. Each power supply terminal 120 receives power from the power supply socket 300 when the light source unit 10 is attached to the power supply socket 300.

[0017] Each power supply terminal 120 has a small diameter portion 121 and a large diameter portion 122. The small diameter portion 121 is a round bar-shaped portion that extends upward from the base surface 111 of the main body 110. The large diameter portion 122 is a disk-shaped portion that extends upward from the tip (upper end) of the small diameter portion 121. In a plan view from above, the diameter D2 (see FIG. 7) of the large diameter portion 122 is larger than the diameter D1 (see FIG. 7) of the small diameter portion 121. The light source unit 10 is attached to the power supply socket 300 by inserting the large diameter portion 122 of each power supply terminal 120 into a first insertion hole 321 of the power supply socket 300, which will be described later, and rotating the light source unit 10 by a predetermined angle.

[0018] The multiple power supply terminals 120 are provided at positions that are point-symmetric with respect to the center of the protrusion 130 located at the center of the base surface 111 of the main body 110. This allows the power supply socket 300 to hold the light source units 10 evenly.

[0019] As shown in FIG. 3, the protrusion 130 is provided so as to extend upward from the center of the base surface 111 of the main body 110. The protrusion 130 is inserted into a second insertion hole 351 (see FIG. 4) of the power supply socket 300, which will be described later. The protrusion 130 is formed in a cylindrical shape with its axial direction extending in the vertical direction. The protrusion 130 forms an accommodating space that accommodates, for example, a capacitor or the like, which is a circuit element of the light source unit 10. The protrusion 130 has a pair of protrusions 131. The pair of protrusions 131 are provided at positions that are point-symmetric with the center of the protrusion 130 as the center of symmetry.

[0020] (1.2) Device body 1 and 2, the fixture body 20 has an attachment member 210, a cover member 220, and a power supply socket 300. Each component of the fixture body 20 will be described in detail below.

[0021] (1.2.1) Mounting parts 1 and 2, the mounting member 210 is a member that is attached to the bottom and side surfaces of the cover member 220. A terminal block 30 is attached to the mounting member 210. The terminal block 30 supplies power from an external power source to the power feed socket 300.

[0022] (1.2.2) Cover member As shown in FIG. 2, the cover member 220 is a cover that covers the light source unit 10 and the like. The cover member 220 is formed in a cylindrical shape with a bottom and an open bottom. The cover member 220 functions as a mounting member to which the light source unit 10 is attached, and also functions as a heat sink (heat dissipation member) that dissipates heat generated by the light source unit 10. The cover member 220 is made of a material with high thermal conductivity, such as aluminum. The cover member 220 may also be made of an insulating resin with high thermal conductivity. This allows the cover member 220 to be lightweight while improving its insulating properties.

[0023] (1.2.3) Power socket Fig. 4 is a front view of the power feed socket 300 in the lighting device 1 according to the embodiment. Fig. 5 is a rear view of the power feed socket 300 in the lighting device 1 according to the embodiment. The power feed socket 300 is a power feed socket for feeding power to the light source unit 10 including the power feed terminal 120. As shown in Figs. 4 and 5, the power feed socket 300 includes a socket body 310, a plurality of (two in the illustrated example) conductive portions 330, a plurality of (two in the illustrated example) pressing portions 360, and a plurality of (two in the illustrated example) terminal fixing portions 370.

[0024] (1.2.3.1) Socket body As shown in FIGS. 4 and 5, the socket body 310 is an outer casing of the power feed socket 300 and is a cylindrical member large enough to accommodate the plurality of conductive portions 330, the plurality of pressing portions 360, and the plurality of terminal fixing portions 370. The socket body 310 is formed, for example, from an insulating resin material. The socket body 310 includes a main portion 311 that forms the top surface of the power feed socket 300. The main portion 311 has an annular shape when viewed from above and below. The socket body 310 has a plurality of (two in the illustrated example) first insertion portions 320, a plurality of (two in the illustrated example) guide portions 340, and a second insertion portion 350.

[0025] Each of the multiple first insertion portions 320 has a first insertion hole 321. The first insertion hole 321 penetrates the main portion 311 of the socket body 310 in the up-down direction. The first insertion hole 321 has a circular shape in a plan view from the up-down direction. An opening length L1 of the first insertion hole 321 is longer than a diameter D2 (see FIG. 7) of the large diameter portion 122 of the power supply terminal 120 of the light source unit 10. Therefore, the large diameter portion 122 of the power supply terminal 120 can be inserted into the socket body 310 through the first insertion hole 321. In other words, the first insertion hole 321 has a size that allows the power supply terminal 120 to be inserted therein. In this embodiment, the opening length L1 of the first insertion hole 321 is the diameter of the first insertion hole 321. In this embodiment, the first insertion portion 320 corresponds to an insertion portion, and the first insertion hole 321 corresponds to an insertion hole. That is, the power supply socket 300 includes a first insertion portion 320 having a first insertion hole 321 into which the power supply terminal 120 is inserted.

[0026] Each of the guide portions 340 has a guide hole 341. Each guide hole 341 penetrates the main portion 311 of the socket body 310 in the vertical direction. The multiple first insertion holes 321 and the multiple guide holes 341 correspond one-to-one to each other. Each guide hole 341 has an arc shape in a plan view from the vertical direction and is connected to a corresponding one of the multiple first insertion holes 321. In a plan view from the vertical direction, each guide hole 341 extends in an arc shape clockwise from the corresponding first insertion hole 321, with the center C1 of the socket body 310 as the center of symmetry. This allows the power supply terminal 120 to be inserted into the guide hole 341 by rotating the light source unit 10. Furthermore, the opening length L2 of each guide hole 341 in the intersecting direction is shorter than the opening length L1 of the corresponding first insertion hole 321 in the intersecting direction. Furthermore, the opening length L2 of each guide hole 341 is larger than the diameter D1 (see FIG. 7) of the small diameter portion 121 of the power supply terminal 120 and smaller than the diameter D2 (see FIG. 7) of the large diameter portion 122. As a result, during the connection work of electrically connecting the power supply terminal 120 to the conductive portion 330, the large diameter portion 122 of the power supply terminal 120 catches on the edge of the guide hole 341, so that the power supply terminal 120 is less likely to come off the power supply socket 300 and cause the light source unit 10 to fall. The intersecting direction is a direction intersecting with the movement direction in which the power supply terminal 120 moves during the connection work.

[0027] Each guide hole 341 has the function of guiding the power supply terminal 120, which is inserted through the first insertion hole 321 of the first insertion portion 320, from the first insertion portion 320 to the conductive portion 330. That is, each guide portion 340 guides the power supply terminal 120 during the connection process of electrically connecting the power supply terminal 120 to the conductive portion 330. In other words, the power supply socket 300 includes a guide portion 340 that guides the power supply terminal 120 during the connection process. Each guide hole 341 has a connection portion 345 (see FIG. 5 ) near the end opposite the first insertion hole 321, where the power supply terminal 120 is electrically connected to the conductive portion 330. The connection portion 345 is, for example, the terminal end of the guide hole 341.

[0028] As shown in FIG. 4 , the second insertion portion 350 has a second insertion hole 351 and a pair of grooves 352. The second insertion hole 351 penetrates the socket body 310 in the up-down direction near the center of the socket body 310. The second insertion hole 351 has a circular shape when viewed from above. That is, the socket body 310 has an annular (donut-like) shape when viewed from above. As described above, the protrusion 130 of the light source unit 10 is inserted into the second insertion hole 351 of the second insertion portion 350. Therefore, the inner diameter of the second insertion hole 351 is larger than the outer diameter of the protrusion 130. Furthermore, it is desirable that the height of the second insertion portion 350 is larger than the height of the protrusion 130. The pair of grooves 352 are provided at positions point-symmetrical with respect to the center of the second insertion hole 351. A corresponding one of the multiple protrusions 131 provided on the protrusion 130 is inserted into each of the pair of grooves 352.

[0029] As shown in Fig. 4, the two first insertion portions 320 are provided in the main portion 311 of the socket body 310 at positions that are point-symmetrical with respect to the center C1 of the socket body 310. Also, as shown in Fig. 4, the two guide portions 340 are provided in the main portion 311 of the socket body 310 at positions that are point-symmetrical with respect to the center C1 of the socket body 310. This ensures that the support points of the light source units 10 in the power feeding socket 300 are evenly distributed, allowing the power feeding socket 300 to hold the light source units 10 evenly.

[0030] (1.2.3.2) Conductive parts 5, each of the plurality of conductive portions 330 is an elastic plate-like member. Each conductive portion 330 is arranged along a corresponding one of the plurality of guide holes 341. Each conductive portion 330 is electrically connected by contacting a corresponding one of the plurality of power supply terminals 120.

[0031] Fig. 6 is a perspective view of the power feeding socket 300 in the lighting device 1 according to the embodiment. As shown in Fig. 6, the conductive portion 330 supplies power by contacting the large diameter portion 122 of the power feeding terminal 120 from the radial direction of the socket body 310. When the large diameter portion 122 reaches the connection portion 345, the conductive portion 330 becomes electrically connectable with the large diameter portion 122.

[0032] (1.2.3.3) Pressing part FIG. 7 is a cross-sectional view of the power feed socket 300 in the lighting device 1 according to the embodiment. As shown in FIG. 7, the pressing portion 360 presses the large diameter portion 122 of the power feed terminal 120 in a direction (downward) that is substantially opposite to the insertion direction (upward) of the power feed terminal 120 near the conductive portion 330. That is, the pressing portion 360 presses the large diameter portion 122 of the power feed terminal 120 downward. In other words, when the power feed terminal 120 is in the connection position where it is electrically connected to the conductive portion 330, the pressing portion 360 applies a pressing force to the power feed terminal 120 in a direction (downward) opposite to the insertion direction (upward), which is the direction in which the power feed terminal 120 is inserted into the first insertion hole 321. As shown in FIG. 7, the pressing portion 360 presses the power feed terminal 120 downward, fixing the power feed terminal 120 so as to be electrically connected to the conductive portion 330. More specifically, the pressing portion 360 clamps the large diameter portion 122 of the power supply terminal 120 between itself and the edge of the guide hole 341. Because the pressing portion 360 needs to apply a strong force to press the power supply terminal 120, it is desirable that the pressing portion 360 be made of a stainless steel spring, for example. This prevents the pressing force of the pressing portion 360 from decreasing with repeated use.

[0033] The pressing portion 360 presses at least a portion of the large diameter portion 122 that is positioned outside the arc formed by the guide hole 341. That is, the pressing portion 360 presses a portion of the large diameter portion 122, which is the insertion portion of the power supply terminal 120 inserted through the first insertion hole 321, that overlaps with the opening edge of the guide hole 341. This prevents the light source unit 10 from drooping in the vertical direction, even when the lighting device 1 is a spotlight and the light source unit 10 is tilted so that the direction of light emission from the light source unit 10 is horizontal, for example.

[0034] The pressing portion 360 has a bent portion 361. The bent portion 361 protrudes in a V shape toward the large diameter portion 122 of the power supply terminal 120 and presses the large diameter portion 122 downward. At this time, the bent portion 361 makes line contact with the upper surface of the large diameter portion 122.

[0035] (1.2.3.4) Terminal fixing part The terminal fixing portion 370 extends along the guide hole 341 and has a bent portion 371 that is bent so as to protrude toward the power feeding terminal 120 (see FIGS. 5 and 6). The bent portion 371 protrudes in a V-shape toward the conductive portion 330 in a plan view from the top and bottom. The terminal fixing portion 370 presses the power feeding terminal 120 toward the conductive portion 330 in the vicinity of the conductive portion 330. That is, the terminal fixing portion 370 presses the power feeding terminal 120 in the radial direction of the socket body 310. In other words, when the power feeding terminal 120 is located in the connecting position (connecting portion 345), the terminal fixing portion 370 applies a pressing force toward the conductive portion 330 to the power feeding terminal 120. As a result, the terminal fixing portion 370 clamps the power feeding terminal 120 between itself and the conductive portion 330. This allows the power supply terminal 120 to be kept electrically connected to the conductive portion 330, and prevents the light source unit 10 from rotating in the direction opposite to the mounting direction and falling off the power supply socket 300. In this embodiment, the terminal fixing portion 370 is formed integrally with the pressing portion 360.

[0036] (1.3) Overall structure Next, the overall configuration of the lighting device 1 configured as above will be described in detail.

[0037] 1 and 2, the light source unit 10 is inserted into the power feed socket 300 from below and electrically connected to the power feed socket 300. At this time, the protrusion 130 of the light source unit 10 is inserted into the second insertion portion 350 of the power feed socket 300. At this time, the power feed terminal 120 of the light source unit 10 is inserted into the first insertion portion 320 of the power feed socket 300 and moves along the guide portion 340 to a position where it contacts the conductive portion 330. A cover member 220 covers the periphery of the power feed socket 300 and the light source unit 10. An attachment member 210 covers the side and bottom surfaces of the cover member 220. In this embodiment, the diameter of the main body 110 of the light source unit 10 is approximately the same as the diameter of the socket main body 310 of the power feed socket 300.

[0038] (1.4) How to install the light source unit Next, a detailed description will be given of a method for attaching the light source unit 10 to the power feed socket 300 configured as described above. The attachment method according to this embodiment includes an insertion step, a rotation step, and a connection step. The insertion step is a step of inserting the power feed terminal 120 of the light source unit 10 into the first insertion portion 320 of the power feed socket 300. The rotation step is a step of rotating the light source unit 10 relative to the power feed socket 300. The connection step is a step of connecting the power feed terminal 120 of the light source unit 10 to the conductive portion 330 of the power feed socket 300.

[0039] (1.4.1) Insertion process First, the protrusion 130 of the light source unit 10 is inserted into the second insertion hole 351 of the second insertion portion 350 of the power feed socket 300. At the same time, the power feed terminal 120 of the light source unit 10 is inserted into the first insertion hole 321 of the first insertion portion 320 of the power feed socket 300.

[0040] (1.4.2) Rotation process Next, the light source unit 10 is rotated clockwise in a plan view from below. As a result, the power supply terminal 120 moves from the first insertion hole 321 of the first insertion portion 320 to the guide hole 341 of the guide portion 340. The large diameter portion 122 of the power supply terminal 120 moves along the guide hole 341 and reaches the connection portion 345 of the guide portion 340.

[0041] (1.4.3) Connection process Through the above rotation process, power supply terminal 120 reaches electrically connectable connection portion 345 of guide portion 340. When power supply terminal 120 reaches connection portion 345 of guide portion 340, pressing portion 360 presses large diameter portion 122 of power supply terminal 120 downward (in the direction opposite to the insertion direction) to hold power supply terminal 120 so as not to move.

[0042] (1.5) Functions of the pressing part and terminal fixing part Next, the functions of the pressing portion 360 and the terminal fixing portion 370 will be described.

[0043] As described above, the pressing portion 360 applies a downward pressing force to the power feed terminal 120 when the power feed terminal 120 is located at the connection position (connection portion 345). This prevents the power feed terminal 120 from rotating in the opposite direction to the installation direction due to vibration or the like, causing the light source unit 10 to fall off the power feed socket 300. Furthermore, by pressing the large diameter portion 122 of the power feed terminal 120 downward, for example, even when the lighting device 1 is a spotlight and the light source unit 10 is tilted so that the direction of light irradiation from the light source unit 10 is horizontal, the light source unit 10 can be prevented from sagging vertically, and further, a gap can be prevented from occurring between the light source unit 10 and the power feed socket 300.

[0044] Furthermore, the conductive portion 330 supplies power by contacting the large diameter portion 122 of the power feeding terminal 120 from the radial direction of the socket body 310. The terminal fixing portion 370 presses the power feeding terminal 120 radially of the socket body 310, and the terminal fixing portion 370 and the conductive portion 330 hold the power feeding terminal 120 in place. This keeps the power feeding terminal 120 electrically connected to the conductive portion 330, and prevents the power feeding terminal 120 from rotating in the direction opposite to the mounting direction, causing the light source unit 10 to fall off the power feeding socket 300.

[0045] (1.6) Action and Effect Next, the effects of the power supply socket 300 and the lighting device 1 configured as above will be described.

[0046] The power feed socket 300 according to the embodiment includes a first insertion section 320 having a first insertion hole 321 into which the power feed terminal 120 is inserted, a conductive section 330 electrically connected to the power feed terminal 120, a guide section 340 connected to the first insertion hole 321 and having a guide hole 341 that guides the power feed terminal 120 from the first insertion section 320 to the conductive section 330, and a pressing section 360 that applies a pressing force to the power feed terminal 120 in a direction opposite to the insertion direction. The pressing force from the pressing section 360 holds the power feed terminal 120 in a connected position where it is electrically connected to the conductive section 330.

[0047] According to the above configuration, the pressing portion 360 presses the power feeding terminal 120 in the direction opposite to the insertion direction of the power feeding terminal 120 into the first insertion hole 321, thereby holding the power feeding terminal 120 so as to be electrically connected to the conductive portion 330. This improves the electrical connection between the conductive portion 330 and the power feeding terminal 120. Furthermore, it is possible to prevent the power feeding terminal 120 from rotating in the direction opposite to the installation direction due to vibration or the like, causing the light source unit 10 to fall off the power feeding socket 300. Furthermore, even if the lighting device 1 is a spotlight and the light source unit 10 is tilted so that the light irradiation direction of the light source unit 10 is horizontal, for example, it is possible to prevent the light source unit 10 from sagging vertically and further to prevent a gap from being generated between the light source unit 10 and the power feeding socket 300.

[0048] In the power feed socket 300, the guide hole 341 has an arc shape that follows the movement direction of the power feed terminal 120. The pressing portion 360 presses the portion of the large diameter portion 122 of the power feed terminal 120 that overlaps with the opening edge of the guide hole 341.

[0049] According to the above configuration, for example, even if the lighting device 1 is a spotlight and the light source unit 10 is tilted so that the light irradiation direction of the light source unit 10 is horizontal, the light source unit 10 can be prevented from drooping in the vertical direction, and further, a gap can be prevented from occurring between the light source unit 10 and the power supply socket 300.

[0050] The power feeding socket 300 further includes a terminal fixing portion 370 that applies a pressing force toward the conductive portion 330 to the power feeding terminal 120 when the power feeding terminal 120 is in the connected position.

[0051] According to the above configuration, the terminal fixing portion 370 presses the power feeding terminal 120 toward the conductive portion 330, whereby the power feeding terminal 120 is clamped between the terminal fixing portion 370 and the conductive portion 330. This makes it possible to maintain the power feeding terminal 120 in a state in which it is electrically connected to the conductive portion 330, and to prevent the power feeding terminal 120 from rotating in the direction opposite to the mounting direction, which would otherwise cause the light source unit 10 to fall off the power feeding socket 300.

[0052] In the power feeding socket 300, the guide hole 341 has an arc shape that follows the movement direction of the power feeding terminal 120. The opening length L2 of the guide hole 341 in the intersecting direction that intersects with the movement direction is shorter than the opening length L1 of the first insertion hole 321 in the intersecting direction.

[0053] According to the above configuration, the diameter D2 of the large diameter portion 122 of the power supply terminal 120 is smaller than the opening length L1 of the first insertion hole 321 and larger than the opening length L2 of the guide hole 341, making it difficult for the power supply terminal 120 to fall out of the guide hole 341.

[0054] (1.7) Variations The configuration of the present disclosure has been described above based on the embodiments, but the present disclosure is not limited to the above embodiments. Furthermore, the materials, values, etc. described in the above embodiments are preferred examples and are not intended to be limiting. Furthermore, the configuration of the power supply socket 300 can be modified as appropriate without departing from the scope of the technical concept of the present disclosure.

[0055] For example, the pressing portion 360 may be a part of the conductive portion 330. That is, the conductive portion 330 and the pressing portion 360 may be integrated. In this way, the conductive portion 330 serves the role of the pressing portion 360, and therefore there is no need to provide a new pressing portion 360, which leads to a reduction in the number of parts.

[0056] Furthermore, the pressing portion 360 may indirectly press the power supply terminal 120. For example, an elastic member such as rubber may be attached to the portion of the pressing portion 360 that comes into contact with the power supply terminal 120.

[0057] 8 is a diagram showing the relationship between the power supply terminal 120 and the conductive portion 330 according to a modification of the embodiment. As shown in Fig. 8, the conductive portion 330 may be disposed between the power supply terminal 120 and the socket body 310 in the vertical direction. In this case, the conductive portion 330 is brought into contact with the surface of the large-diameter portion 122 of the power supply terminal 120 opposite the top surface, thereby electrically connecting and supplying power.

[0058] Furthermore, the bent portion 361 of the pressing portion 360 is V-shaped and is in line contact with the large diameter portion 122 of the power supply terminal 120, but for example, the bent portion 361 may be convex and in surface contact with the large diameter portion 122.

[0059] (Aspect) The power feed socket (300) according to the first aspect is a power feed unit (300) that feeds power to a light source unit (10) that includes a power feed terminal (120). The power feed unit (300) includes an insertion portion (320), a conductive portion (330), a guide portion (340), and a pressing portion (360). The insertion portion (320) has an insertion hole (321) into which the power feed terminal (120) is inserted. The conductive portion (330) is electrically connected to the power feed terminal (120). The guide portion (340) is connected to the insertion hole (321) and has a guide hole (341) that guides the power feed terminal (120) from the insertion portion (320) to the conductive portion (330). When the power supply terminal 120 is in a connection position where it is electrically connected to the conductive portion 330, the pressing portion 360 applies a pressing force to the power supply terminal 120 in a direction opposite to the insertion direction in which the power supply terminal 120 is inserted into the insertion hole 321. The pressing force from the pressing portion 360 holds the power supply terminal 120 in the connection position.

[0060] According to the power supply socket (300) of the above aspect, the power supply terminal (120) is held in the above-mentioned connection position by the pressing force from the pressing portion (360), thereby improving the electrical connection between the power supply terminal (120) and the conductive portion (330).

[0061] In the power feed socket (300) according to the second aspect, the guide hole (341) is arc-shaped along the direction of movement of the power feed terminal (120) during the connecting operation for electrically connecting the power feed terminal (120) to the conductive portion (330). The pressing portion (360) presses the portion of the large-diameter portion (122) of the power feed terminal (120) that is inserted through the insertion hole (321) and that overlaps with the opening edge of the guide hole (341).

[0062] According to the power supply socket (300) of the above aspect, even when the lighting device (1) is installed so that the light source unit (10) emits light in a horizontal direction, the light source unit (10) can be prevented from sagging in the vertical direction, and further, a gap can be prevented from being generated between the light source unit (10) and the power supply socket (300).

[0063] The power feed socket (300) according to the third aspect is the power feed socket (300) according to the first or second aspect, further including a terminal fixing portion (370). The terminal fixing portion (370) applies a pressing force toward the conductive portion (330) to the power feed terminal (120) when the power feed terminal (120) is in the connecting position.

[0064] According to the power supply socket (300) of the above aspect, the power supply terminal (120) is pressed toward the conductive portion (330) by the pressing force from the terminal fixing portion (370), thereby further improving the electrical connection between the power supply terminal (120) and the conductive portion (330).

[0065] In the power feed socket (300) according to the fourth aspect, in any one of the first to third aspects, the conductive portion (330) and the pressing portion (360) are integrated.

[0066] According to the power supply socket (300) of the above aspect, the conductive portion (330) functions as the pressing portion (360), so there is no need to provide a new pressing portion (360), which leads to a reduction in the number of parts.

[0067] In the power feed socket (300) according to a fifth aspect, in any one of the first to fourth aspects, the guide hole (341) has an arc shape along a moving direction in which the power feed terminal (120) moves during a connecting operation for electrically connecting the power feed terminal (120) to the conductive portion (330). An opening length (L2) of the guide hole (341) in a cross direction intersecting the moving direction is shorter than an opening length (L1) of the insertion hole (321) in the cross direction.

[0068] According to the power supply socket (300) of the above aspect, the power supply terminal (120) is less likely to fall out of the guide hole (341).

[0069] In the power feed socket (300) according to the sixth aspect, in any one of the first to fifth aspects, the pressing portion (360) indirectly presses the power feed terminal (120).

[0070] According to the power supply socket (300) of the above aspect, the power supply terminal (120) can be indirectly pressed via rubber or the like.

[0071] The lighting device (1) according to a seventh aspect includes the power feed socket (300) according to any one of the first to sixth aspects, and a light source unit (10) detachably attached to the power feed socket (300).

[0072] The lighting device (100) according to the above aspect includes the power supply unit (300), which improves the electrical connection between the power supply terminal (120) and the conductive portion (330). [Explanation of symbols]

[0073] 1. Lighting equipment 10 Light source unit 120 Power supply terminal 122 Large diameter section 300 power socket 320 First insertion part (insertion part) 321 First insertion hole 330 Conductive part 340 Guide part 341 Guide hole 360 Pressing part 370 Terminal fixing part L1, L2 opening length

Claims

1. A power supply unit that supplies power to a light source unit having a power supply terminal, an insertion portion having an insertion hole into which the power supply terminal is inserted; a conductive portion electrically connected to the power supply terminal; a guide portion having a guide hole connected to the insertion hole and guiding the power supply terminal from the insertion portion to the conductive portion; a pressing portion that applies a pressing force to the power supply terminal in a direction opposite to an insertion direction in which the power supply terminal is inserted into the insertion hole when the power supply terminal is located at a connection position where the power supply terminal is electrically connected to the conductive portion, The power supply terminal is held in the connection position by the pressing force from the pressing portion. Power supply socket.

2. the guide hole has an arc shape along a moving direction in which the power supply terminal moves during a connection operation for electrically connecting the power supply terminal to the conductive portion, the pressing portion presses a portion of the power supply terminal that overlaps with an opening edge of the guide hole in a large diameter portion that is an insertion portion of the power supply terminal that is inserted through the insertion hole; The power supply socket according to claim 1.

3. a terminal fixing portion that applies a pressing force to the conductive portion toward the power supply terminal when the power supply terminal is located at the connection position; The power supply socket according to claim 1 or 2.

4. The conductive portion and the pressing portion are integral with each other. The power supply socket according to claim 1 or 2.

5. the guide hole has an arc shape along a moving direction in which the power supply terminal moves during a connection operation for electrically connecting the power supply terminal to the conductive portion, an opening length of the guide hole in a cross direction that is a direction crossing the movement direction is shorter than an opening length of the insertion hole in the cross direction; The power supply socket according to claim 1 or 2.

6. The pressing portion indirectly presses the power supply terminal. The power supply socket according to claim 1 or 2.

7. The power supply socket according to claim 1 or 2; The light source unit is detachably attached to the power supply socket. Lighting equipment.

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