JP5881871B2 - Sockets and lighting fixtures - Google Patents

Description

  The present invention relates to a socket and a lighting fixture. The present invention particularly relates to a swan-type receipt.

  From around 2007, a fluorescent lamp with a GX53 base has been released in Japan, and in 2009 it has been used as a base for an LED lamp. The fluorescent lamps and LED lamps are thin, and it is possible to design instruments in a compact manner.

  The GX53 base is a swan type base similar to the glow lamp base P21. When the base is attached to the socket, the side contact portion of the conductive plate having the spring property of the socket is elastically deformed and contacts the side portion of the base pin head. The socket is generally formed of a thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate. Moreover, many phosphor bronze for springs excellent in spring property is used for the conductive plate (see, for example, Patent Documents 1 and 2).

JP-A-11-135210 JP 2002-313507 A Special table 2007-504627 gazette US Pat. No. 6,045,387 JP 2007-5193 A

  In general, copper alloys such as phosphor bronze for springs, which are generally used for conductive plates, have relatively low electrical conductivity, and spring characteristics deteriorate due to the influence of temperature.

  If an LED lamp that has a longer life than a fluorescent lamp is used, the spring characteristics of the conductive plate will deteriorate due to a long-term heat cycle due to temperature changes in the installation environment, ON / OFF of the lamp, etc. Contact pressure tends to be weak. As a result, the contact resistance increases, and there is a possibility that the lamp is not lit or, in the worst case, burnout.

  Also, the contact resistance between the cap pin and the conductive plate increases to generate heat, or the lamp cap pin of the lamp becomes hot when the lamp is abnormally heated. Since the lamp is held only by the insulator of the socket body, if the temperature of the cap pin exceeds the melting temperature of the insulator, the insulator, which is a thermoplastic resin, melts. There is a possibility of falling, which may lead to a serious accident.

  The present invention is directed to, for example, heat dissipation of a lamp.

The socket according to one aspect of the present invention is:
A socket to which a lamp including a shaft and a pin provided at a tip of the shaft and having a head portion thicker than the shaft is mounted;
A main body having a front surface and a back surface, the first through hole penetrating from the front surface to the back surface with a width wider than the head portion of the pin, and connected to the first through hole, and narrower than the head portion of the pin A main body having a pin receiving portion formed of an insulating material and a lamp receiving portion formed of a metal material.
A conductive member attached to the back surface of the main body, wherein the pin is inserted into the first through hole from the side having the front surface of the main body, and the head portion of the pin protrudes to the side having the back surface of the main body And when the pin is slid into the second through hole, a conductive member that contacts the head portion of the pin,
The lamp receiving portion has a surface that contacts the main body of the lamp in a state where the lamp is mounted on the socket and the conductive member is in contact with the head portion of the pin.

  According to one aspect of the present invention, the lamp receiving portion of the socket has a surface that contacts the lamp body in a state where the lamp is mounted in the socket and the conductive member of the socket contacts the head portion of the lamp pin. Therefore, it is possible to radiate heat from the lamp.

It is the (a) top view of the lamp | ramp which concerns on Embodiment 1, (b) A side view, and the enlarged view of the cap pin of a lamp | ramp. It is the (a) top view of the socket which concerns on Embodiment 1, (b) AA sectional drawing. It is (a) top view and (b) side view of the electroconductive board of the socket which concerns on Embodiment 1. FIG. FIG. 3 is a plan view of a state where a lamp is mounted on the socket according to the first embodiment. It is sectional drawing of the state which the cap pin of the lamp | ramp which concerns on Embodiment 1 and the electrically conductive plate of a socket connected. It is sectional drawing of the state which the cap pin of the lamp | ramp which concerns on Embodiment 2 and the electrically conductive plate of a socket connected. It is sectional drawing of the state which the cap pin of the lamp | ramp which concerns on Embodiment 3 and the electrically conductive plate of a socket connected. It is sectional drawing of the state which the cap pin of the lamp | ramp which concerns on Embodiment 4 and the electrically conductive plate of a socket connected. It is (a) top view of the socket which concerns on Embodiment 5, (b) It is BB sectional drawing. It is the (a) bottom side perspective view of the socket which concerns on Embodiment 6, (b) The upper surface side exploded perspective view. It is (a) exploded plan view of the socket which concerns on Embodiment 6, (b) It is a side view and the elements on larger scale.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1A is a plan view of the lamp 10 according to the present embodiment, and FIG. 1B is a side view of the lamp 10 and an enlarged view of the cap pin 11 of the lamp 10.

  1 (a) and 1 (b), the lamp 10 is a GX53 lamp. The base of the GX 53 is generally called a swan-type base and is characterized by having a pair of base pins 11. The base pin 11 includes a base pin shaft 12 that is a cylinder and a base pin head 13 that is a cylinder. Since the base pin shaft 12 is smaller in diameter than the base pin head 13, it has a T-shaped cross section as shown in the enlarged view of FIG. Here, the side surface of the base pin head 13 is referred to as a base pin head side surface portion 13a, and the surface perpendicular to the base pin shaft 12 of the base pin head 13 is referred to as a base pin head bottom surface portion 13b.

  The lamp 10 is provided with a base pin 11 having a shape similar to that of the base S21 of another swan-type base, such as a glow lamp. However, the lamp 10 has a structure for the purpose of preventing the lamp 10 from falling off. One pair of anchoring portions 14 is included. The anchoring portion 14 includes an anchoring insertion hole 14 a and an anchoring holding portion 14 b, and the anchoring holding portion 14 b is in a position perpendicular to the base pin 11.

  2A is a plan view of the socket 20 according to the present embodiment, and FIG. 2B is a cross-sectional view taken along line AA of the socket 20. FIG. 3A is a plan view of the conductive plate 30 of the socket 20, and FIG. 3B is a side view of the conductive plate 30 of the socket 20. FIG. 4 is a plan view showing a state in which the lamp 10 is mounted on the socket 20.

  2 (a) and 2 (b), the socket 20 has an outer shape to which a swan-shaped base can be attached, and is, for example, GX53 or P21 defined by JIS C7709. The main body of the socket 20 is formed of a thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate. In the present embodiment, the socket 20 is a part of a lighting fixture installed on the ceiling, such as a downlight, and is attached to the fixture main body. Therefore, the lamp 10 is attached to the socket 20 from below. The socket 20 may be used for other types of lighting fixtures. Therefore, for example, the lamp 10 may be mounted from the side of the socket 20 or from above.

  In order to store the conductive plate 30 in the socket 20, there is a point-symmetric conductive plate storage portion 22, and the conductive plate 30 is stored by attaching a storage lid (not shown). The conductive plate housing portion 22 of the socket 20 has a pair of L-shaped ribs 24.

  The socket 20 has a pair of base pin insertion portions 23. The base pin insertion portion 23 includes a base pin insertion hole 23a and a base pin holding portion 23b. At a position perpendicular to the cap pin holding part 23b, there is a pair of protruding protrusions 25.

  In addition, the socket 20 has an appliance attachment portion 26 for attaching the socket 20 to an appliance body (not shown).

  The cap pin insertion hole 23 a has a larger diameter than the cap pin head 13, and the cap pin holding portion 23 b has a smaller diameter. Therefore, the base pin head 13 is inserted into the base pin insertion hole 23a from the bottom surface portion 27 to the top surface portion 28 of the main body of the socket 20, and the lamp 10 is rotated until the base pin head 13 moves to the position of the base pin holding portion 23b. Thus, it is possible to make a state in which the lamp 10 is mounted (fixed) on the socket 20. As will be described later, the lamp 10 and the socket 20 are connected in this state. In the above rotation operation, the retaining protrusion 25 of the socket 20 is inserted into the retaining insertion hole 14a of the lamp 10 and the retaining protrusion 25 is moved to the retaining holder 14b. Can also be obtained.

  3A and 3B, the conductive plate 30 is formed of phosphor bronze for a spring or the like as described above.

  The conductive plate 30 has a side contact portion 31 that is elastically deformed by the spring property when the lamp 10 is mounted on the socket 20 and is brought into contact with the base pin head side surface portion 13a to conduct therethrough. In addition, there is a bottom surface contact portion 32 that is brought into contact with the bottom surface portion 13 b of the cap pin head and is conductive, and is provided perpendicular to the side surface contact portion 31. That is, the side surface contact portion 31 and the bottom surface contact portion 32 are formed to have a substantially L shape when viewed from the longitudinal end portion of the conductive plate 30. The bottom surface contact portion 32 is provided with a notch 32 a that is wider than the thickness of the base pin shaft 12. Note that the shape of the notch 32a may be matched to the outer peripheral shape of the base pin holding part 23b so that the bottom surface contact part 32 does not block the base pin holding part 23b.

  In addition, the conductive plate 30 has an external wire connecting portion 34 (fast connection terminal) for connecting a wire to be fed from outside. Since the electric wire hits the rib 24 of the socket 20, even when an electric wire having a predetermined length or more is inserted, a problem such as exposure to the outside does not occur.

  Further, the conductive plate 30 has a movable prevention groove 35 that is a cut groove having a width larger than that of the rib 24 of the socket 20 (desirably, the difference in width is minimized). In a state where the lamp 10 is mounted on the socket 20, the movement preventing groove 35 is inserted into the rib 24 and the position is fixed.

  The conductive plate 30 is also provided with a convex portion 33. During the rotation operation for connecting the cap pin 11 of the lamp 10 to the socket 20, the cap pin head side surface portion 13a passes through the convex portion 33 of the conductive plate 30, so that the operator can obtain an appropriate click feeling and wear it properly. I can confirm. Note that there are various methods other than the method using the convex portion 33 as a method for obtaining a click feeling during the rotation operation, such as a method of providing a convex portion on the socket 20 side. May be.

  Thereafter, when the lamp 10 is rotated to an appropriate mounting position as shown in FIG. 4, the side surface contact portion 31 comes into contact with the base pin head side surface portion 13 a while being elastically deformed, and the base pin head bottom surface portion 13 b is caused by its own weight. It comes into contact with the bottom surface contact portion 32 of the conductive plate 30. When the side contact portion 31 is elastically deformed, the rib 24 of the socket 20 is not moved by being fixed to the movable prevention groove 35 of the conductive plate 30, and the targeted elastic force of the side contact portion 31 can be obtained. .

  FIG. 5 is a cross-sectional view of the cap pin 11 of the lamp 10 and the conductive plate 30 of the socket 20 connected to each other.

  When the lamp 10 is attached to the socket 20 as shown in FIG. 5, the cap pin 11 is electrically connected by the side contact portion 31 of the conductive plate 30 elastically deformed due to the spring property and the bottom contact portion 32 of the conductive plate 30. The

  In the conventional case, the conductive plate is in contact only with the side surface of the base pin head. In this case, when a heat cycle occurs due to temperature changes due to the installation environment, lamp ON / OFF, etc., and this continues for a long period of time, the contact pressure between the cap pin and the conductive plate tends to be weak due to deterioration of the spring property of the conductive plate. In particular, phosphor bronze for springs may cause problems due to increased contact resistance, such as an insulating film such as an oxide film formed between the side surface of the cap pin head and the conductive plate due to the deterioration of the spring characteristics due to temperature, which weakens the contact pressure. . Further, the LED lamp has a long life, there is no process for replacing the conventional glow lamp, and there are few processes for removing an insulator such as an oxide film once generated. As a result, problems are likely to occur.

  On the other hand, if the structure of the conductive plate 30 is in contact with the base pin head bottom surface portion 13b as shown in FIG. 5, the reliability of the contact is improved without being greatly affected by the temperature change. Further, since the bottom surface contact portion 32 is provided, the contact area with the base pin 11 is increased, so that the heat transmitted from the base of the lamp 10 can be radiated more than before. In the case of the lamp 10 such as an LED lamp that has a characteristic that the amount of light decreases at a high temperature, this leads to prevention of a decrease in the amount of light.

  As in the present embodiment, when the socket 20 is used for a ceiling mounting device, the bottom surface contact portion 32 of the conductive plate 30 holds the lamp 10. Therefore, even if heat is transmitted from the base of the lamp 10 to the socket 20 due to heat generation due to an increase in contact resistance or abnormal temperature rise of the lamp 10, even if the base pin holding part 23b of the socket 20 melts, the bottom surface contact part Since the lamp 10 is held by 32, the lamp 10 is difficult to fall.

  As shown in FIGS. 1A and 1B, in the present embodiment, the lamp 10 attached to the socket 20 has a substantially circular shape in plan view. The lamp 10 includes two base pins 11 (an example of pins) at positions symmetrical to each other with respect to the center of the main body of the lamp 10 in plan view. Note that the number of the cap pins 11 may be one or two or more. The base pin 11 has a cylindrical base pin shaft 12 (an example of a shaft portion) and a cylindrical base pin head 13 (an example of a head portion) provided at the tip of the base pin shaft 12. The base pin shaft 12 and the base pin head 13 may have a polygonal column shape or other shapes. The base pin head 13 is formed thicker than the base pin shaft 12.

  As shown in FIGS. 2A and 2B, in the present embodiment, the main body of the socket 20 has a bottom surface portion 27 (an example of the front surface) and an upper surface portion 28 (an example of the back surface). . The upper surface portion 28 is provided with a conductive plate storage portion 22 (an example of a receiving portion) at a position corresponding to the cap pin 11. The conductive plate housing part 22 is provided with a base pin insertion hole 23a (an example of a first through hole) and a base pin holding part 23b (an example of a second through hole). The base pin insertion hole 23 a is a hole that is wider than the base pin head 13 and penetrates from the bottom surface portion 27 to the top surface portion 28. The base pin holding part 23 b is a hole that is connected to the base pin insertion hole 23 a and penetrates from the bottom part 27 to the top part 28 with a width narrower than the base pin head 13 and thicker than the base pin shaft 12. That is, the base pin insertion hole 23 a is an insertion hole larger than the outer peripheral shape of the base pin head 13, and the base pin holding portion 23 b is a locking hole smaller than the outer peripheral shape of the base pin head 13.

  As shown in FIGS. 3 and 4, in the present embodiment, the conductive plates 30 (with connection terminals for connecting electric wires for supplying power from outside are provided in the respective conductive plate storage portions 22. One example of the conductive member is stored one by one. That is, the conductive plate 30 is attached to the upper surface portion 28 of the main body of the socket 20. The conductive plate 30 includes a bottom surface contact portion 32 (an example of a first surface contact portion) and a side surface contact portion 31 (an example of a second surface contact portion). The bottom surface contact portion 32 inserts the base pin 11 into the base pin insertion hole 23a from the bottom surface portion 27 of the main body of the socket 20 and the base pin head 13 protrudes toward the top surface portion 28, so that the base pin 11 is connected to the base pin holding portion 23b. Is formed so as to come into contact with the base pin head bottom surface portion 13b (example of the first surface) which is the surface of the base pin head 13 on the base pin shaft 12 side. Similarly, when the base pin 11 is slid to the base pin holding part 23b, the side surface contact portion 31 is formed so as to come into contact with the base pin head side surface portion 13a (example of the second surface) which is the side surface of the base pin head 13. ing. That is, when the base pin head 13 engages with the base pin holding part 23b, the bottom contact part 32 contacts the base pin head bottom part 13b, and the side contact part 31 contacts the base pin head side part 13a.

  The conductive plate 30 further has a convex portion 33 (an example of a slide restricting portion). The convex portion 33 is elastically deformed when the cap pin 11 is pushed by the cap pin head 13 with a certain force or more in the process of sliding the cap pin 11 to the cap pin holding portion 23b, and the cap pin 11 is slid when the cap pin 11 is not pressed with a force of a certain amount or more. Regulate the operation. That is, the convex portion 33 is a locking portion that contacts the base pin head side surface portion 13a and restricts the rotation of the lamp 10 in the removal direction when the lamp 10 is rotated and attached to the socket 20.

  As shown in FIG. 5, in the present embodiment, the surface of the bottom surface contact portion 32 that contacts the base pin head bottom surface portion 13b is substantially flat (planar), so that the contact area can be increased and a high heat dissipation effect can be obtained. Is obtained.

  As described above, according to the present embodiment, particularly for the long-life lamp 10, the effect of improving the reliability and heat dissipation of the connection between the cap pin 11 of the lamp 10 and the conductive plate 30 of the socket 20 is obtained. It is done. Specifically, the above-described effect can be obtained by providing the contact portion between the base pin 11 and the conductive plate 30 not only on the side surface of the base pin head 13 but also on the bottom surface of the base pin head 13.

  When the lamp 10 is attached to the socket 20, gravity force is applied by the weight of the lamp 10, and the conductive plate 30 in contact with the base pin head bottom surface portion 13 b is not affected by the temperature change described above, and the contact reliability Increases nature. Moreover, heat dissipation is also improved by increasing the area of the conductive plate 30 in contact with the cap pin 11. This applies not only to ceiling mounts but also to wall mounts. That is, since the LED light emitting portion is longer and heavier than the base pin 11, the lamp 10 is tilted and the base pin head bottom surface portion 13b is pressed against the conductive plate 30, so that the reliability of contact can be improved regardless of the attachment of the instrument. An effect can be obtained.

  Further, since the contact area between the base pin 11 and the metal that is the material of the conductive plate 30 is increased, the heat transmitted from the base of the lamp 10 can be radiated more than before. In the case of an LED lamp, since the amount of light decreases when the LED element reaches a high temperature, this leads to prevention of a decrease in the amount of light.

  In addition, since the base pin 11 is held by the receiving portion of the socket 20 and the conductive plate 30, in the case of a ceiling-mounted appliance in which dropping is a concern, it is possible to obtain an effect that is less likely to drop than a normal socket. In particular, the glow lamp is effective because it does not have a fall prevention mechanism like the GX53 base.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 6 is a cross-sectional view of a state in which the base pin 11 of the lamp 10 according to the present embodiment and the conductive plate 30 of the socket 20 are connected.

  In the first embodiment, the bottom surface contact portion 32 of the conductive plate 30 has a flat plate shape. However, in this embodiment, the bottom surface contact portion 32 of the conductive plate 30 has a letter “F” as shown in FIG. It has a shape. The bottom surface contact portion 32 is in contact with the base pin head bottom surface portion 13b in the vicinity of the apex of the “F” shape, and has a spring property that repels the weight of the lamp 10. Therefore, in the present embodiment, the reliability of contact between the cap pin 11 and the conductive plate 30 is further improved.

  As shown in FIG. 6, in the present embodiment, when the bottom contact portion 32 is formed in a leaf spring shape and contacts the base pin head bottom surface portion 13 b, the base pin head 13 is separated from the top surface portion 28 of the socket 20. It is formed to press in the direction. Therefore, the base pin 11 and the conductive plate 30 can be more reliably connected.

Embodiment 3 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 7 is a cross-sectional view of a state in which the cap pin 11 of the lamp 10 according to the present embodiment and the conductive plate 30 of the socket 20 are connected.

  As shown in FIG. 7, in a state where the lamp 10 is mounted in the socket 20 (a state in which the base pin 11 is slid to the base pin holding portion 23b), the conductive plate 30 is formed only by the flat bottom contact portion 32. The cap pin head 13 may be contacted. That is, the conductive plate 30 may contact only the base pin head bottom surface portion 13b.

Embodiment 4 FIG.
The difference between the present embodiment and the second embodiment will be mainly described.

  FIG. 8 is a cross-sectional view of a state in which the base pin 11 of the lamp 10 according to the present embodiment and the conductive plate 30 of the socket 20 are connected.

  As shown in FIG. 8, in the state in which the lamp 10 is mounted in the socket 20 (the state in which the base pin 11 is slid to the base pin holding portion 23b), the conductive plate 30 has the shape of “F”. Thus, the base pin head 13 may be contacted only by the bottom contact portion 32 having springiness. That is, the conductive plate 30 may contact only the base pin head bottom surface portion 13b.

Embodiment 5 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  9A is a plan view of the socket 20 according to the present embodiment, and FIG. 9B is a cross-sectional view of the socket 20 taken along the line BB.

  9A and 9B, a part of the main body of the socket 20 is formed of a metal plate 29 (an example of a heat dissipation member). The remaining portion including the conductive plate housing portion 22 is formed of an insulating material of a thermoplastic resin, such as polycarbonate or polybutylene terephthalate, as in the first embodiment. As a method for connecting the metal plate 29 and the thermoplastic resin portion, for example, a method in which one end portion is formed in a convex shape and the other end portion is formed in a concave shape and the end portions are fitted to each other can be employed. In the present embodiment, the metal plate 29 may be attached to at least the surface of the main body of the socket 20 to which the lamp 10 is attached, that is, the bottom surface portion 27.

  Although not shown, as the conductive plate 30, a plate having a bottom surface contact portion 32 having a spring shape and a spring shape is used as in the second or fourth embodiment. Since the bottom surface contact portion 32 pushes up the base pin head bottom surface portion 13 b, the upper surface of the lamp 10 (the surface facing the bottom surface portion 27 of the socket 20) is in close contact with the metal plate 29 of the main body of the socket 20. That is, the bottom surface contact portion 32 of the conductive plate 30 presses the cap pin head 13 to bring the main body of the lamp 10 into close contact with the metal plate 29. Therefore, the heat of the generated lamp 10 is easily transmitted to the metal plate 29, and the lamp 10 can be radiated efficiently.

  In the present embodiment, a part of the metal plate 29 forms at least a part of the retaining protrusion 25 of the socket 20. Therefore, the anchoring holding portion 14b of the lamp 10 is caught by the anchoring protrusion 25 including the metal portion. Therefore, even if the resin part of the main body of the socket 20 deteriorates, there is no possibility that the lamp 10 will come off.

Embodiment 6 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  10A is a bottom perspective view of the socket 20 according to the present embodiment, and FIG. 10B is an exploded top perspective view of the socket 20. 11A is an exploded plan view of the socket 20, and FIG. 11B is a side view and a partially enlarged view of the socket 20 (enlarged view of the boundary surface between the pin receiving portion 40 and the lamp receiving portion 50).

  10 (a) and 10 (b) and 11 (a) and 11 (b), the main body of the socket 20 is a pair of pin receivers 40 and a pair of pin receivers 40 that are attached to both ends in the lateral direction. The lamp receiver 50 is made of metal.

  The pin receiving portion 40 has an outer shape to which a swan-shaped base can be attached, and is, for example, GX53 defined by JIS C7709. The pin receiving portion 40 is formed of an insulating material of a thermoplastic resin, such as polycarbonate or polybutylene terephthalate.

  The pin receiving portion 40 has a point-symmetric conductive plate storage portion 22 for storing the conductive plate 30, and stores the conductive plate 30 by attaching a storage lid (not shown).

  The pin receiving portion 40 has a pair of base pin insertion portions 23. The base pin insertion portion 23 includes a base pin insertion hole 23a and a base pin holding portion 23b.

  In addition, a pair of connecting protrusions 41 extending in the direction of the pin of the pin receiving portion 40 are arranged in line symmetry at both ends in the longitudinal direction of the pin receiving portion 40. The connecting protrusion 41 is a connecting shaft 41a extending in the vertical direction from the pin receiving upper surface portion 43 (the upper surface of the pin receiving portion 40) and a conical joint extending from the tip of the connecting shaft 41a toward the pin receiving portion 40 and outward. It consists of part 41b.

  The lamp receiver 50 includes a connection receiver 51 at a position facing the connection protrusion 41 of the pin receiver 40. The connection receiving portion 51 has an L-shaped connection piece 51a extending in the vertical direction from the lamp receiving upper surface portion 53 (the upper surface of the lamp receiving portion 50). The connecting piece 51a is formed with a connecting hole 51b which is a hole having a diameter smaller than the width (the diameter of the bottom surface) of the conical portion of the joint portion 41b of the pin receiving portion 40. The joint portions 41 b at both ends in the longitudinal direction of the pin receiving portion 40 are fitted into the connecting holes 51 b at both ends in the longitudinal direction of the lamp receiving portion 50, so that the lamp receiving portion 50 is a wife of the pin receiving portion 40. Fixed to the left and right of the hand direction.

  The lamp receiver 50 has a pair of protruding protrusions 25 at a position perpendicular to the cap pin insertion part 23 of the pin receiver 40. The pin receiving portion 40 is opened so that the lamp 10 can be inserted in the same manner as the main body of the socket 20 in the first embodiment, and the retaining projection 25 is cut out on the inner surface of the opened portion. It is provided so as to protrude from the place. As described above, the anchoring portion 14 is provided on the outer surface of the lamp 10, and the anchoring protrusion 25 is anchored to the anchoring portion 14 when the lamp 10 is mounted.

  In addition, the lamp receiving portion 50 has a fixture attachment portion 26 for attaching the socket 20 to a fixture main body (not shown).

  Similar to the first embodiment, the cap pin insertion hole 23a has a larger diameter than the cap pin head 13 of the lamp 10, and the cap pin holding portion 23b has a smaller diameter. Therefore, the cap pin head 13 is inserted into the cap pin insertion hole 23a from the pin receiving bottom surface portion 42 (the bottom surface of the pin receiving portion 40) toward the pin receiving upper surface portion 43, and the cap pin head 13 moves to the position of the cap pin holding portion 23b. By rotating the lamp 10 until this occurs, a state in which the lamp 10 is mounted (fixed) on the pin receiving portion 40 can be created. In this state, the lamp 10 and the pin receiver 40 are connected. In the above rotation operation, the latching projection 25 of the lamp receiving portion 50 is inserted into the latching insertion hole 14a of the lamp 10, and the latching projection 25 is moved to the latching holding portion 14b. A prevention effect is also obtained.

  Further, even if the lamp 10 becomes hot due to abnormal heat generation of the lamp 10 and the pin receiving part 40 formed of an insulating material such as resin melts, the retaining protrusion 25 of the lamp receiving part 50 formed of metal causes the lamp 10 can be held, so that a secondary disaster due to the fall of the lamp 10 can be prevented as in the fifth embodiment.

  The plate thickness of the lamp receiving portion 50 is thicker than the thickness of the pin receiving portion 40, but the pin receiving upper surface portion 43 and the lamp receiving upper surface portion 53 are arranged to be flat (same height). Therefore, when the lamp 10 is mounted on the pin receiving portion 40, the lamp 10 comes into contact with the lamp receiving portion 50, and the lamp 10 and the pin receiving portion are determined by the difference between the thickness of the pin receiving portion 40 and the plate thickness of the lamp receiving portion 50. A space is created between 40. As a result, air convection occurs, leading to cooling of the lamp 10 and extending the life of the lamp 10. It can also be expected to suppress thermal deterioration of the insulating material of the pin receiving portion 40.

  As shown in FIGS. 10 (a) and 10 (b) and FIGS. 11 (a) and 11 (b), in the present embodiment, the main body of the socket 20 includes a pin receiving portion 40 made of an insulating material, a metal And a lamp receiver 50 made of a material. On the pin receiving upper surface portion 43, a conductive plate housing portion 22 is provided at a position corresponding to the cap pin 11 of the lamp 10. As in the first embodiment, the conductive plate housing part 22 is provided with a base pin insertion hole 23a and a base pin holding part 23b. There are two lamp receivers 50, which are attached to the sides (left and right sides) of the pin receiver 40.

  The lamp receiving bottom surface portion 52 (the bottom surface of the lamp receiving portion 50) is located closer to the lamp 10 than the pin receiving bottom surface portion. When the lamp 10 is mounted on the socket 20 so that the conductive plate 30 contacts the cap pin head 13 of the lamp 10, the pin receiving bottom 42 is separated from the main body of the lamp 10, but the lamp receiving bottom 52 is not connected to the lamp 10. Touch the body. For this reason, the heat of the lamp 10 is not easily transmitted to the pin receiver 40, and the heat of the lamp 10 is radiated through the lamp receiver 50. Therefore, the thermal deterioration of the pin receiving part 40 can be suppressed.

  As shown in FIG. 11A, in the present embodiment, when the base pin 11 of the lamp 10 is slid to the base pin holding portion 23b, the conductive plate 30 that contacts only the side surface portion 13a of the base pin head is conductive. Although housed in the plate housing portion 22, it also contacts the base pin head bottom surface portion 13b (that is, has the side surface contact portion 31 and the bottom surface contact portion 32), as in the first and second embodiments. The conductive plate 30 may be stored inside the conductive plate storage unit 22. Alternatively, as in the third and fourth embodiments, the conductive plate 30 that contacts only the base pin head bottom surface portion 13b (that is, has only the bottom surface contact portion 32) is stored in the conductive plate storage portion 22. Also good.

  As mentioned above, although embodiment of this invention was described, you may implement combining 2 or more embodiment among these. Alternatively, one of these embodiments may be partially implemented. Or you may implement combining two or more embodiment among these partially.

As described above, the socket according to the embodiment of the present invention is
A socket to which a lamp including a shaft and a pin provided at a tip of the shaft and having a head portion thicker than the shaft is mounted;
A main body having a front surface and a back surface, the first through hole penetrating from the front surface to the back surface with a width wider than the head portion of the pin, and connected to the first through hole, and narrower than the head portion of the pin A main body provided with a second through hole penetrating from the front surface to the back surface with a width wider than the shaft portion of
A conductive member attached to the back surface of the main body, wherein the pin is inserted into the first through-hole from the front surface side of the main body and the pin head portion protrudes to the back surface side of the main body. And a conductive member having a first surface contact portion that contacts a first surface that is a surface of the shaft portion side of the head portion of the pin when the pin is slid into the second through hole.

  The surface of the first surface contact portion that contacts the first surface of the head portion of the pin is substantially flat.

  The first surface contact portion is formed in a leaf spring shape, and presses the head portion of the pin in a direction away from the back surface of the main body when contacting the first surface of the head portion of the pin.

A heat radiating member for radiating heat from the lamp is provided on the surface of the main body,
The first surface contact portion presses the head portion of the pin to bring the lamp body into close contact with the heat dissipation member.

  The conductive member has a second surface contact portion that contacts a second surface that is a side surface of the head portion of the pin.

  The conductive member elastically deforms when the pin is pushed by the head portion of the pin with a certain force in the process of sliding the pin into the second through hole, and slides the pin when the pin is not pushed by a certain force or more. A slide restricting portion for restricting the operation is provided.

The main body is formed of an insulating material, the pin receiving portion provided with the first through hole and the second through hole, and the lamp receiving portion formed of a metal material and attached to a side of the pin receiving portion. And
When the lamp is mounted on the socket so that the first surface contact portion contacts the first surface of the head portion of the pin as the surface of the main body, the pin receiving portion is separated from the main body of the lamp. Having spaced apart surfaces,
The lamp receiving portion is a surface located on the lamp side from the surface of the pin receiving portion, and the lamp is placed in the socket such that the first surface contact portion contacts the first surface of the head portion of the pin. When mounted, it has a surface that contacts the body of the lamp.

The socket according to the embodiment of the present invention is
A socket to which a lamp including a shaft and a pin provided at a tip of the shaft and having a head portion thicker than the shaft is mounted;
A pin receiving portion formed of an insulating material and having a front surface and a back surface, connected to the first through hole, the first through hole penetrating from the front surface to the back surface with a width wider than the head portion of the pin, A pin receiving portion provided with a second through hole that is narrower than the head portion of the pin and wider than the shaft portion of the pin and penetrates from the front surface to the back surface; and a side of the pin receiving portion formed of a metal material A main body having a lamp receiver attached to,
A conductive member attached to the back surface of the pin receiving portion, wherein the pin is inserted into the first through hole from the front surface side of the pin receiving portion, and the head portion of the pin protrudes to the back surface side of the pin receiving portion. When the pin is slid into the second through hole in a state where it is in a state of including, a conductive member that contacts the head portion of the pin,
The pin receiving portion has, as the surface, a surface that is separated from a main body of the lamp when the lamp is mounted on the socket so that the conductive member contacts the head portion of the pin.
The lamp receiving part is a surface located on the lamp side from the surface of the pin receiving part, and when the lamp is mounted on the socket so that the conductive member contacts the head part of the pin, Having a surface in contact with the lamp body;

The socket is used by being attached to a fixture body of a lighting fixture,
The lamp receiving portion is formed of a metal material and has a fixture mounting portion for mounting the socket to the fixture body.

The main body is opened so that the lamp can be inserted, and a protrusion formed of a metal material is provided on the inner surface of the opened portion,
As the lamp, a lamp having a hole for engaging the protrusion on the outer surface is mounted on the socket.

In addition, the lighting fixture according to the embodiment of the present invention,
The socket includes a main body to which the socket is attached.

In addition, the conductive member according to the embodiment of the present invention,
A main body having a front surface and a rear surface of a socket to which a lamp having a shaft portion and a pin provided at a tip of the shaft portion and having a head portion thicker than the shaft portion is mounted, and is thicker than the head portion of the pin A first through hole penetrating from the front surface to the back surface by a width and a second through hole extending from the front surface to the back surface by a width that is narrower than a head portion of the pin and thicker than a shaft portion of the pin. A conductive member attached to the back surface of the main body provided with a through hole,
When the pin is inserted into the first through hole from the front surface side of the main body and the pin is slid into the second through hole in a state where the head portion of the pin projects to the back surface side of the main body, It has the 1st surface contact part which contacts the 1st surface which is the surface by the side of the axial part of the head part of a pin.

  10 Lamp, 11 Cap Pin, 12 Cap Pin Shaft, 13 Cap Pin Head, 13a Cap Pin Head Side, 13b Cap Pin Head Bottom, 14 Locking Portion, 14a Locking Insertion Hole, 14b Locking Locking Portion, 20 Socket, 22 Conductive Plate housing portion, 23 cap pin insertion portion, 23a cap pin insertion hole, 23b cap pin holding portion, 24 rib, 25 retaining projection, 26 instrument mounting portion, 27 bottom surface portion, 28 top surface portion, 29 metal plate, 30 conductive plate 31 Side contact part, 32 Bottom contact part, 32a Notch part, 33 Convex part, 34 External wire connection part, 35 Movable prevention groove, 40 pin receiving part, 41 Connection protrusion, 41a Connection shaft, 41b Connection part, 42 pin Base surface part, 43 pin receiving surface part, 50 lamp receiving part, 51 connection receiving part, 51a connection piece, 51b connection Hole, 52 lamps 受底 surface, 53 lamps 受上 surface.

Claims (6)

In a socket to which a lamp provided with a pin having a shaft portion and a head portion provided at the tip of the shaft portion and having a thicker head portion is mounted
A main body having a front surface and a back surface, the first through hole penetrating from the front surface to the back surface with a width wider than the head portion of the pin, and connected to the first through hole, and narrower than the head portion of the pin A main body having a pin receiving portion formed of an insulating material and a lamp receiving portion formed of a metal material.
A conductive member attached to the back surface of the main body, wherein the pin is inserted into the first through hole from the side having the front surface of the main body, and the head portion of the pin protrudes to the side having the back surface of the main body And when the pin is slid into the second through hole, a conductive member that contacts the head portion of the pin,
The lamp receiving portion is a socket having a surface that contacts the main body of the lamp in a state where the lamp is mounted on the socket and the conductive member is in contact with the head portion of the pin.   The conductive member is inserted into the first through hole from the side having the surface of the main body and the head portion of the pin protrudes to the side having the back surface of the main body. When slid into the hole, the main body of the lamp is moved to the lamp receiving portion by pressing the head portion of the pin in contact with the first surface that is the surface connected to the shaft portion of the head portion of the pin. The socket of Claim 1 which has a 1st surface contact part made to contact | adhere. The lamp receiving part is attached to a side of the pin receiving part,
The said pin receiving part has a surface which leaves | separates from the main body of the said lamp | ramp in the state in which the said lamp | ramp is mounted to the said socket and the said electrically-conductive member contacts the head part of the said pin as the surface of the said main body. Socket described in. The socket is used by being attached to a fixture body of a lighting fixture,
The socket according to any one of claims 1 to 3, wherein the lamp receiving portion is made of a metal material and has a fixture mounting portion for mounting the socket to the fixture body. The main body has a portion opened for inserting the lamp, and a protrusion formed of a metal material is provided on an inner surface of the opened portion,
The socket according to any one of claims 1 to 4, wherein a lamp having a hole for engaging the protrusion on an outer surface is mounted on the socket as the lamp.   A lighting fixture comprising: the socket according to claim 1; and a fixture main body to which the socket is attached.

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