JP2012164496A - Socket and lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain grounding conduction between a grounding base of a straight-tube LED lamp and an apparatus main body by mounting a socket on the apparatus main body.SOLUTION: A socket 100 which connects a grounding base 410 of a straight-tube LED lamp 400 and which is installed in a socket mounting hole formed in a socket mounting edge 210 of an apparatus main body 200 is provided with a socket body (socket basis 120) into which the grounding base 410 is inserted and which has a main body fitting groove 150 into which the socket mounting edge 210 forming the socket mounting hole is inserted, and a base contact part 166a which is arranged inside the socket body (socket basis 120) and which is in contact with the grounding base 410 inserted in the socket body (socket basis 120) to be electrically conducted with the grounding base 410 while being in contact with the edge cross-section 211 of the socket mounting edge 210 inserted in the socket body (socket basis 120) from the main body fitting groove 150 to be electrically conducted with the apparatus main body 200.

Description

  The present invention relates to a socket for a straight tube type LED lamp and a lighting fixture, for example.

  LED (Light Emitting Diode) lamps in the form of straight tube lamps are becoming widespread. In the case of a straight tube LED lamp, it has a structure having an LED circuit inside a straight tube lamp-shaped casing, and commercial voltage is directly applied to the inner portion of the straight tube lamp shape, so that grounding conduction is achieved. It is necessary to take. Accordingly, straight tube LED lamps are being used in which one base of the straight tube type LED lamp is used for power feeding and the other base is used for grounding.

  2. Description of the Related Art Conventionally, there is a socket provided with an earth connection member that directly contacts a heat radiating member of a straight tube type LED lamp and takes a ground.

JP 2010-170903 A

  Usually, the straight tube type LED lamp is not often used for applications involving large-scale construction such as purchasing a new LED lighting fixture and replacing the fixture itself. In many cases, existing lighting fixtures are used as they are, and they are used for remodeling work related to wiring. Therefore, there is a need for a method for establishing electrical connection between a main body portion of an existing lighting fixture and a straight tube LED lamp that are widely used in the market.

  Conventionally, there is a socket provided with a ground connection member that is in direct contact with the heat radiating member of a straight tube LED lamp and grounded. However, in the future, it is highly likely that a straight tube LED lamp in which the heat radiating member is not exposed will spread. However, there is a problem that the grounding cannot be performed by the method of directly contacting and grounding the heat radiating member of the conventional straight tube type LED lamp.

  The present invention provides a socket for a straight tube LED lamp that is compatible with a socket of a fluorescent lamp fixture that is widely spread in the market, and that can establish grounding conduction between the straight tube LED lamp and the luminaire main body. With the goal.

The socket according to the present invention is a socket for connecting a base of a light source, and is a socket attached to a socket attachment hole formed by a main body edge of a lighting fixture body.
A slit portion into which a main body edge forming the socket mounting hole is inserted, and an outer portion into which the base is inserted;
It is arranged inside the outer part, contacts the base inserted into the outer part and is connected to the base, and contacts with the main body edge inserted into the outer part from the slit part. And a base grounding portion that is electrically connected to the main body of the luminaire.

  A socket according to the present invention is a socket for connecting a base of a light source, and is attached to a socket mounting hole formed by a main body edge of a luminaire main body, and the main body edge forming the socket mounting hole is inserted. An outer shell portion into which the base is inserted, and an inner portion of the outer shell portion, which is in contact with the base inserted into the outer portion of the outer shell portion, and is electrically connected to the base. Since there is a base grounding portion that comes into contact with the main body edge inserted into the outer portion from the slit portion and is electrically connected to the luminaire main body, the instrument main body and the socket are attached by attaching the socket to the instrument main body. It becomes possible to obtain ground continuity with a light source (straight tube type LED lamp) mounted on the.

2A and 2B are external perspective views of the socket 100 according to the present embodiment, in which FIG. 1A is a perspective view from the front surface portion 124 side of the socket 100, and FIG. 2B is a perspective view from the rear surface portion 125 side of the socket 100. It is a disassembled perspective view of the socket 100 which concerns on this Embodiment. It is a perspective view of the lighting fixture 500 which concerns on this Embodiment. It is a perspective view which shows the socket attachment hole 220 formed in the instrument main body 200 of the lighting fixture 500 which concerns on this Embodiment. It is a figure which shows the grounding cap 410 of the straight tube | pipe type LED lamp 400 attached to the socket 100 which concerns on this Embodiment. It is a figure which shows a pair of contact piece 160 which concerns on this Embodiment, (a) is a top view of a pair of contact piece 160, (b) is a perspective view of a pair of contact piece 160. It is a figure which shows the internal structure of the normal state of the socket 100 which concerns on this Embodiment, (a) is a cross-sectional top view, (b) is a cross-sectional perspective view. It is a figure which shows the internal structure of the use condition of the socket 100 which concerns on this Embodiment, (a) is a cross-sectional top view, (b) is a cross-sectional perspective view.

Embodiment 1 FIG.
FIG. 1 is an external perspective view of a socket 100 according to the present embodiment, where (a) is a perspective view from the front surface portion 124 side of the socket 100, and (b) is a perspective view from the rear surface portion 125 side of the socket 100. It is. FIG. 2 is an exploded perspective view of the socket 100 according to the present embodiment. FIG. 3 is a perspective view of a lighting fixture 500 according to the present embodiment. FIG. 4 is a perspective view showing socket mounting hole 220 formed in fixture body 200 of lighting fixture 500 according to the present embodiment. FIG. 5 is a diagram showing the grounding cap 410 of the straight tube LED lamp 400 attached to the socket 100 according to the present embodiment.

  The overall configuration of the socket 100, the configuration when the socket 100 is attached to the instrument body 200, and the configuration when the straight tube LED lamp 400 is attached to the socket 100 will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the socket 100 includes a socket base 120 and a socket lid 130 made of plastic as an insulator, and a copper or copper alloy contact piece 160 attached to the inside of the socket base 120. (A pair of contact pieces). A combination of the socket base 120 and the socket lid 130 is referred to as a socket housing 170 (outer portion). Moreover, when it describes as the contact piece 160, it shall mean a pair of contact pieces or each contact piece of a pair of contact pieces.

  The socket housing 170 (the socket base 120 and the socket lid 130) includes a bottom surface portion 121, a side surface portion 122, a top surface portion 123, a front surface portion 124, and a rear surface portion 125. The top surface portion 123 has a dome-shaped curved surface, and the socket casing 170 has a substantially cross-section (dome-shaped) outline. The structure of the contact piece 160 (a pair of contact pieces) and the detailed configuration of attaching (arranging) the contact piece 160 (a pair of contact pieces) inside the socket base 120 will be described later.

  FIG. 3 is a perspective view of a lighting fixture 500 according to the present embodiment. The lighting fixture 500 includes a fixture body 200, a socket 100 attached to the fixture body 200, a straight tube LED lamp 400 attached to the socket 100, and a reflector 300 that reflects light emitted from the straight tube LED lamp 400. With. The socket 100 is used by being attached to a fixture main body 200 (light fixture main body) of the lighting fixture 500.

  As shown in FIG. 4, the instrument main body 200 includes a socket attachment hole 220 for attaching the socket 100. The socket mounting hole 220 is a U-shaped notch (groove), and includes a socket mounting edge 210 (main body edge) on both sides and a socket mounting stop 230 at the end.

  The member of the fixture body 200 of the lighting fixture 500 is made of a metal using a coated steel plate or a plated steel plate. The socket mounting edge 210 (body edge) forming the socket mounting hole 220 and the notch cutting portion (edge section 211) of the socket mounting stop 230 are processed by pressing or the like, and the metal portion is exposed at the fracture surface. It is in a state of being. In the present embodiment, grounding is performed using an edge section 211 that is a broken section of the socket mounting edge 210.

  As shown in FIGS. 1 and 2, the socket housing 170 (the socket base 120 and the socket lid 130) includes a body attachment groove 150 used for attachment to the instrument body 200. The body attachment groove 150 is formed in the vicinity of the bottom surface portion 121 of the side surface portion 122 on both sides and substantially parallel to the bottom surface portion 121.

  As shown in FIG. 2, the main body attachment groove 150 includes an attachment groove opening 151, an attachment groove side wall 153, and a main body locking portion 154. The body attachment groove 150 is formed in the vicinity of the bottom surface portion 121 of the side surface portion 122 on both sides and substantially parallel to the bottom surface portion 121, and penetrates the rear surface portion 125. The attachment groove 152 has an abutment without penetrating the front surface portion 124, and the abutment is a main body locking portion 154.

  The bottom of the body mounting groove 150 is open and connected to the inside of the socket housing 170. That is, the main body mounting groove 150 penetrates the inside of the socket housing 170. This opening is referred to as a mounting groove opening 151. Further, the inner wall surface of the main body mounting groove 150 is referred to as a mounting groove side wall 153. Further, the abutment of the main body attachment groove 150 on the front surface side is referred to as a main body locking portion 154.

  The socket 100 is attached by bringing the rear surface portion 125 (the socket lid 130) into contact with the socket attachment stopper 230 of the socket attachment hole 220. In the socket 100, the socket mounting edge portion 210 of the instrument main body 200 is inserted into the opening portion of the main body mounting groove 150 penetrating the rear surface portion 125 (socket lid 130), and the rear surface portion 125 contacts the socket mounting stop portion 230 of the instrument main body. The socket mounting edge 210 is slid into the main body mounting groove 150 until it comes into contact. In other words, the socket mounting edge 210 is slid into the main body mounting groove 150 until the socket mounting edge 210 that slides in the main body mounting groove 150 contacts the main body locking portion 154 of the main body mounting groove 150. Is attached to the instrument body 200.

  As shown in FIG. 2, the width of the mounting groove side wall 153 of the main body mounting groove 150 formed in the socket lid 130 is L1. The width of the mounting groove side wall 153 of the main body mounting groove 150 formed in the socket base 120 is L2. As shown in FIG. 2, the width of the mounting groove side wall 153 on the socket base 120 side is made smaller than the width of the mounting groove side wall 153 on the socket lid 130 side. That is, the body attachment groove 150 is formed so as to satisfy the relationship L1> L2.

  This is because the socket mounting edge 210 inserted into the socket housing 170 is exposed to the inside of the socket housing 170 by the configuration described below. First, the width of the socket mounting edge portion 210 inserted from the rear surface portion 125 (socket lid 130) side is L1. The inserted socket attachment edge portion 210 having the width L1 is inserted until it comes into contact with the main body locking portion 154. Since the width of the mounting groove side wall 153 of the socket base 120 is L2 and L1> L2, the socket mounting edge 210 having a width of (L1−L2) is formed in the portion of the body mounting groove 150 of the socket base 120. Then, it is exposed from the mounting groove opening 151 to the inside of the socket 100 (socket housing 170).

  Since the socket mounting edge 210 inserted and exposed inside the socket housing 170 is only the body mounting groove 150 of the socket base 120, the body mounting groove 150 formed in the socket lid 130 has a mounting groove opening. 151 may not be formed.

  As described above, the socket 100 is attached to the socket attachment hole 220 provided in the fixture body 200 portion of the lighting fixture 500. As shown in FIG. 4, when the notch width of the socket attachment hole 220 (notch part) is L10 and the width between the body attachment grooves 150 on both sides of the rear surface part 125 is L11 as shown in FIG. L10 and L11 are substantially the same or formed so that L10 is slightly larger. The socket 100 is attached by sliding the body attachment groove 150 on the rear surface 125 side together with the socket attachment edges 210 on both sides of the socket attachment hole 220 (notch).

  Thereafter, as shown in FIG. 3, the reflector 300 is attached to the fixture body 200 of the lighting fixture 500 to prevent the socket 100 from falling off.

  As shown in FIG. 1A, the socket base 120 of the socket 100 includes a base insertion hole 140 into which the ground base 410 of the straight tube LED lamp 400 (light source) is inserted.

  Socket 100 according to the present embodiment attaches grounding cap 410 of straight tube LED lamp 400. A grounding cap 410 as a terminal for grounding is added to one end of the straight tube type LED lamp 400.

  As shown in FIG. 5, the grounding cap 410 of the straight tube LED lamp 400 includes a cap portion 411 that is a rod-shaped cap portion protruding from an end portion of the cylindrical straight tube LED lamp 400, and a tip of the cap portion 411. And a cap locking projection 412 having an elliptical shape.

  The base insertion hole 140 of the socket 100 has a shape substantially the same (or slightly larger) as the shape of the base locking projection 412. In order to attach the straight tube type LED lamp 400 to the socket 100, the base locking projection 412 is inserted from the base insertion hole 140, and then rotated to fit with the pair of contact pieces 160 inside the socket 100. It is done. A detailed method for attaching the grounding cap 410 to the socket 100 will be described later.

  6A and 6B are diagrams showing a pair of contact pieces 160 according to the present embodiment, wherein FIG. 6A is a plan view of the pair of contact pieces 160, and FIG. 6B is a perspective view of the pair of contact pieces 160. . 7A and 7B are diagrams showing an internal structure of the socket 100 according to the present embodiment in a normal state, where FIG. 7A is a sectional plan view and FIG. 7B is a sectional perspective view. 8A and 8B are diagrams showing the internal structure of the socket 100 according to the present embodiment in use, where FIG. 8A is a sectional plan view and FIG. 8B is a sectional perspective view.

  As shown in FIGS. 6 to 8, the pair of contact pieces 160 are formed by opposing contact pieces 160 formed of metal pieces such as copper or copper alloy.

  The top surface portion 123 side of the pair of contact pieces 160 (near one end of the pair of contact pieces) is a base clamping portion 161 in which the contact pieces 160 are arranged substantially in parallel with a distance L3. As shown in FIG. 7A, the interval L3 is substantially the same as or slightly larger than the diameter L5 of the base insertion hole 140 in the short direction. A base contact portion 162 that locks the base locking projection 412 of the ground base 410 is provided at a position facing the base insertion hole 140 of the base clamping portion 161.

  The base contact portion 162 is a component that is formed such that each of the pair of contact pieces 160 at positions facing the base insertion hole 140 of the base clamping portion 161 swells outward (side surface side). As shown to Fig.6 (a), when the horizontal diameter of the nozzle | cap | die contact part 162 is set to L6, it will be the relationship of L6> L3.

  The pair of contact pieces 160 are bent at substantially right angles in the direction of the side surface portion 122 at the corner portion A168. That is, each contact piece of the pair of contact pieces 160 is bent at a substantially right angle toward the outside (side surface portion 122 side closer to each contact piece 160) at the corner portion A168. Then, each contact piece of the pair of contact pieces 160 is bent at a right angle in the direction of the bottom surface 121 at a corner B169 near the side surface 122, and is formed along the side surface 122 to the vicinity of the bottom surface 121. A portion formed along the side surface portion 122 is referred to as a main body conducting portion 166. The vicinity of the front end portion (near the other end portion) of the main body conducting portion 166 is located in the vicinity of the main body attachment groove 150. The portion located near the body attachment groove 150 near the tip of the body conduction portion 166 (near the other end) is in contact with the socket attachment edge 210 of the instrument body 200 inserted from the body attachment groove 150 into the inside. A main body contact portion 166a is provided.

  A substantially horizontal portion (portion substantially parallel to the bottom surface portion 121) between the base clamping portion 161 and the main body conducting portion 166 is referred to as a shoulder portion 165. The shoulder portion 165 is a connecting portion that physically and electrically connects the base contact portion 162 and the main body conducting portion 166. Each of the pair of contact pieces 160 is formed by integrally forming metal pieces such as copper or copper alloy, and the contact pieces 160 having substantially the same shape are arranged to face each other.

  FIG. 7 shows the state of the contact piece 160 as a single component in the normal state of the socket 100, and FIG. 8 shows the socket 100 attached to the fixture body 200 of the lighting fixture 500 and the straight tube LED lamp 400 attached thereto. The state of the contact piece 160 in a use state is shown.

  The socket 100 is configured to be easily assembled. The socket base 120 includes a shoulder fixing part 126 and an end fixing part 127. The shoulder fixing portion 126 and the end fixing portion 127 are digging members that temporarily fix a part of the contact piece.

  The shoulder fixing portion 126 fixes the shoulder portions 165 of the pair of contact pieces 160. The shoulder fixing portion 126 is formed at a substantially central portion of the socket base 120 substantially in parallel with the bottom surface portion 121, and a slit (gap) for accommodating the shoulder portions 165 of the pair of contact pieces 160 is formed.

  The end fixing portion 127 fixes each end of the pair of contact pieces 160 on the top surface portion 123 side. A pair of end fixing portions 127 are formed on the top surface portion 123 side of the base insertion hole 140 of the socket base 120. The end fixing portion 127 includes slits (notches) into which the end portions on the top surface side of the pair of contact pieces 160 are inserted.

  As illustrated in FIG. 7B, when temporarily fixing the pair of contact pieces 160 to the socket base 120, the operator pushes the pair of contact pieces 160 into the socket base 120 in the A direction. At this time, the respective shoulder portions 165 (FIG. 6) of the pair of contact pieces 160 are pushed into the shoulder fixing portion 126, and the end portions on the top surface portion 123 side of the pair of contact pieces 160 are end fixing portions. Push into 127. As a result, the pair of contact pieces 160 are temporarily fixed to the socket base 120 in the socket 100. After the pair of contact pieces 160 are temporarily fixed to the socket base 120, the socket 100 is assembled by attaching the socket lid 130 to the socket base 120.

  As described above, the portion corresponding to the main body attachment groove 150 of the pair of contact pieces 160 (in the vicinity of the end portions on the bottom surface portion 121 side) is the main body contact portion 166a. As shown in FIG. 6, the rear surface portion 125 side of the main body contact portion 166a has a tapered shape that gradually gets inward toward the rear surface portion 125 side. This tapered component portion is referred to as a guide portion 167.

  As shown in FIG. 7A, the interval between the main body conducting portions 166 of the pair of contact pieces 160 in the normal state is L4, and the narrowest portion between the guide portions 167 of the contact pieces of the pair of contact pieces 160 is the same. Is an interval L8. That is, the distance between the leading ends of the guide portions 167 on both sides on the rear surface portion 125 side is L8. At this time, the relationship is L8 <L4.

  When the socket mounting edge 210 of the instrument main body 200 is inserted into the main body mounting groove 150, the guide section 167 ensures that the metal cross section of the socket mounting edge 210 (see the edge cross section 211, FIG. 8B). It is a component part which guides so that it may contact with the main body contact part 166a.

  Next, the configuration of the state when the socket 100 according to the present embodiment is used will be described with reference to FIG. First, a configuration in a state where the socket 100 is attached to the instrument body 200 will be described.

  In FIGS. 8A and 8B, the socket attachment edge 210 that forms the socket attachment hole 220 of the instrument main body 200 is inserted into the main body attachment groove 150. An edge cross section 211 (see FIG. 8B), which is a cross section of the socket mounting edge 210, is a portion where the metal is exposed. The edge cross section 211 comes into contact (contact) with the main body contact portion 166a of the contact piece 160, whereby the edge cross section 211 and the main body contact portion 166a of the contact piece 160 are physically and electrically connected.

  The space | interval of the main body contact part 166a of a pair of contact piece 160 is open to the state which contacts the side part 122 (inner wall) of the socket base 120 at normal time. The normal opening width of the pair of contact pieces 160 is L9 (see FIG. 7A). The opening width L9 at this time is formed wider than the notch width L10 (see FIG. 8) of the socket mounting hole 220 of the lighting fixture 500 (L9> L10).

  As shown in FIG. 8A, when the socket 100 is attached to the socket attachment hole 220 of the instrument main body 200, since L9> L10, the main body contact portions 166a of the pair of contact pieces 160 are compressed inward. . Accordingly, the main body contact portion 166a is applied with a pressing force P1, which is a force for opening outward. By this pressing force P1, the main body contact portion 166a and the edge section 211 are reliably in contact.

  Further, the opening width of the end portion on the rear surface portion 125 side in the normal guide portion 167 is set to L8 (see FIG. 7A). In the pair of contact pieces 160, the distance L8 between the end portions on the rear surface portion 125 side in the normal guide portion 167 is smaller than the width L10 of the socket mounting hole (L8 <L10). The opening width of the guide portion 167 is formed so as to gradually increase from L8 to L9 from the end portion on the rear surface portion 125 side toward the main body contact portion 166a on the front surface portion 124 side.

  When the socket 100 is attached to the socket attachment hole 220 of the instrument body 200, the socket attachment edge 210 of the instrument body 200 is inserted into the body attachment groove 150 in the A direction. At this time, since L8 <L10, the socket mounting edge portion 210 is not caught by the front end portion on the rear surface portion 125 side of the body contact portion 166a of the pair of contact pieces 160. Further, when the socket attachment edge portion 210 is inserted into the main body attachment groove 150, it is guided by the guide portion 167, and is securely locked while being in contact with the main body contact portion 166a.

  As described above, the main body conductive portion 166 is pushed inward by the tapered portion (guide portion 167) of the internal contact piece (contact piece 160) in the process of attaching the socket 100 to the lighting fixture 500. At this time, the outward contact force (P1) is constantly applied due to the spring property of the metal of the internal contact piece (contact piece 160), so that the internal contact piece (contact piece 160) and the lighting fixture 500 (the fixture body 200) are stably applied. ) Can be secured.

  Next, a configuration in a state where the straight tube type LED lamp 400 is attached to the socket 100 will be described.

  When the straight tube LED lamp 400 is attached to the socket 100, first, the cap locking projection 412 of the grounding cap 410 of the straight tube LED lamp 400 is matched to the shape of the cap insertion hole 140 (in a vertically long state). )insert. The shape of the base insertion hole 140 is an oval shape that matches the shape of the grounding base 410 (the base locking projection 412), and can not be inserted unless the directions match.

  The straight tube LED lamp 400 is rotated approximately 90 degrees in the P2 direction or the P3 direction in a state where the base locking projection 412 passes through the base insertion hole 140 and the base part 411 is positioned in the base insertion hole 140. As shown in FIG. 8, the straight tube LED lamp 400 is attached to the socket 100 so that the top surface 123 side is in the light irradiation direction.

  When the straight tube type LED lamp 400 is rotated approximately 90 degrees, the cap locking projection 412 of the grounding cap 410 is in a horizontally long state between the cap contact portions 162 as shown in FIG. 162 is engaged and locked. At this time, the contact piece 160 is firmly fixed to the shoulder fixing portion 126 and the end fixing portion 127 which are digging members provided in the socket base 120.

  The base contact portion 162 of the contact piece 160 includes a semicircular indentation portion in order to improve the contact property with the base locking projection 412. The normal opening width L6 of the base contact portion 162 (see FIG. 7A) is preferably slightly smaller than the lateral width L7 of the base locking projection 412. Since the normal opening width L6 of the base contact portion 162 is slightly smaller than the lateral width L7 of the base locking projection 412 (FIG. 8A), the base locking projection 412 is locked to the base contact portion 162. In a state where the contact piece 160 is in a pressed state, a pressing force in the inner direction (P4 direction) is generated by the spring property of the contact piece 160. By this pressing force P4, the base contact portion 162 and the base locking projection 412 are reliably in contact with each other, and electrical and physical connection is ensured.

  The inserted grounding cap 11 rotates the straight tube LED lamp 10 by 90 degrees to contact the indented portion 12 and ensure conduction.

  As described above, according to the socket 100 of the present embodiment, an existing lighting device for a straight tube fluorescent lamp can be renewed to the straight tube LED lamp 400.

  Further, in the case of a lighting fixture for a straight tube type LED lamp 400 that is newly installed, the socket 100 according to the present embodiment can be used as the socket 100 on the ground base 410 side. As a result, the socket 100 can be directly attached to the fixture body 200 and the grounding cap 410 can be grounded, so that there is an effect that the wiring of the lamp socket on one side used for grounding can be eliminated.

  In addition, according to the socket 100 of the present embodiment, the pair of contact pieces 160 that come into contact with the instrument main body 200 are pressed against the side surface portion 122 of the socket base 120 so as to ensure conduction when attached to the instrument main body 200. The outward force is applied as you can. The contact piece 160 is tapered so that the socket 100 can be easily attached to the socket attachment hole 220 in a state in which the contact piece 160 is pressed toward the side surface portion 122 (outside). Thereby, the socket 100 can be easily attached to the instrument body 200 without the tip of the contact piece 160 inside the socket 100 on the rear surface 125 side being caught by the socket attachment edge 210 of the socket attachment hole 220 when the socket is attached. .

  100 socket, 120 socket base, 121 bottom surface portion, 122 side surface portion, 123 top surface portion, 124 front surface portion, 125 rear surface portion, 126 shoulder portion fixing portion, 127 end portion fixing portion, 130 socket lid, 140 base insertion hole, 150 body Mounting groove, 152 mounting groove, 151 mounting groove opening, 153 mounting groove side wall, 154 body locking part, 160 contact piece, 161 base clamping part, 162 base contact part, 164 upper end part, 165 shoulder part, 166 body conduction part, 166a body contact portion, 167 guide portion, 168 corner portion A, 169 corner portion B, 170 socket housing, 200 instrument body, 210 socket mounting edge, 211 edge cross section, 220 socket mounting hole, 230 socket mounting stop, 300 reflector, 400 straight tube LED lamp, 410 grounding base, 411 base 412 die retaining projection, 500 luminaires.

Claims (6)

A socket for connecting a base of a light source, which is attached to a socket mounting hole formed by a main body edge of a lighting fixture body,
A slit portion into which a main body edge forming the socket mounting hole is inserted, and an outer portion into which the base is inserted;
It is arranged inside the outer part, contacts the base inserted into the outer part and is connected to the base, and contacts with the main body edge inserted into the outer part from the slit part. And a cap grounding portion that is electrically connected to the lighting fixture body. The base grounding portion includes a pair of contact pieces having spring properties,
2. The socket according to claim 1, wherein the pair of contact pieces sandwich the base in the vicinity of one end and contact the body edge in the vicinity of the other end. The outer part has a bottom part, a front part and both side parts,
The slit portion is formed in the vicinity of the bottom surface portion of each side surface portion of the both side surface portions,
The pair of contact pieces sandwich the base inserted from the front surface portion in the vicinity of the one end portion, and each end portion of the other end portion is in the vicinity of the bottom surface portion of each side surface portion of the both side surface portions. The socket according to claim 2, wherein the socket is formed so as to be located in the socket.   4. The socket according to claim 3, wherein the pair of contact pieces includes a guide portion that guides the main body edge portion inserted into the slit portion at each end portion of the other end portion. The pair of contact pieces are:
A base locking portion for clamping and locking the base; and
A main body contact portion formed toward the bottom surface portion along each side surface portion of the both side surface portions;
The socket according to claim 3, further comprising a connecting portion that connects the base locking portion and the main body contact portion. A socket according to any one of claims 1 to 5;
A luminaire comprising a luminaire body to which the socket is attached.

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