JP4376418B2 - Lamp socket and luminaire - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lamp socket and a lighting fixture.
[0002]
[Prior art]
As shown in FIG. 7, the conventional lamp lamp sockets for ring-shaped fluorescent lamps (for example, Japanese Utility Model Nos. 6-19175 and 6-19176) have a number of metal fittings 100a, 100b, 101a corresponding to four lamp pins. , 101b is provided on the socket main body 102, and the metal fittings 100a, 100b, 101a, 101b are inclined with respect to the mounting surface 104 attached to the instrument main body 103 in correspondence with the annular fluorescent lamp with the cap having the lamp pin inclined. It makes it easy to insert the lamp pin.
[0003]
In this lamp socket, a pair of metal fittings 101 a and 101 b are connected to the conductive plate 105 on the mounting surface 104 side in the socket body 102, and the other pair of metal fittings 100 a and 100 b are separated from the conductive plate 105 by a predetermined insulation distance. Thus, it is connected to the conductive plate 106 arranged so as to float from the mounting surface 104. Further, in each of the receiving metal fittings 100 a, 100 b, 101 a, 101 b, the end portions of the conductive plates 105, 106 are extended to form a pin holding portion 107, and the pin holding portion 107 is bent in an inclined state in a direction away from the mounting surface 104. forming pin holding piece 108 extending therefrom and spacing of the tip to the other party than the pin holding portion 107 is bent to be narrower with and song, further bending the sides of the pin holding portion 107 to the mounting surface 104 and the opposite is doing. Reference numeral 109 denotes a lamp support piece projecting on both sides of the receiving metal fittings 100a, 100b, 101a, 101b of the socket body 102.
[0004]
[Problems to be solved by the invention]
However, it is necessary to ensure a certain distance between the conductive plates 105 and 106 for insulation, and it is necessary to secure the lengths of the receiving metal fittings 100a, 100b, 101a, and 101b to a certain value for lamp holding power. Therefore, the dimension from the mounting surface 104 to the tip of the pin clamping piece 108 is increased, and the distance from the mounting surface 104 to the tip of the lamp support piece 109 that is farthest from the mounting surface 104 is increased. As a result, there has been a drawback that the lighting fixture becomes thicker.
[0005]
Accordingly, an object of the present invention is to provide a lamp socket and a lighting fixture that can make the lamp closer to the mounting surface and can reduce the thickness of the lighting fixture.
[0006]
[Means for Solving the Problems]
The lamp socket according to claim 1, wherein the lamp socket is connected to a socket body having an attachment surface to be attached to the instrument body, and a first pair of conductive plates disposed in the socket body close to the attachment surface, and the attachment surface. A first pair of receptacles for receiving the lamp pins inclined in a direction away from the first pair, and a second pair of conductive plates disposed away from the mounting surface with respect to the first pair of conductive plates; A second pair of receiving brackets for receiving lamp pins, which are positioned so as to substantially overlap with the mounting surfaces of the first pair of receiving brackets and are inclined substantially parallel to the first pair of receiving brackets; The first pair of receiving metal fittings and the second pair of receiving metal fittings are respectively extended from the first pair of conductive plates and the second pair of conductive plates and inclined pin holding portions; both side portions of the pin holding portions Towards serial mounting surface side have a pin holding pieces extending to other party than the pin holding portions as well as folding, the pin holding piece of the first pair of receiving metal, the first A pair of conductive plate side edges are formed in parallel with the mounting surface .
[0007]
According to the lamp socket of the first aspect, since the pin holding pieces of the second pair of metal fittings are bent toward the mounting surface, the height of the lamp socket can be reduced, and the entire socket can be thinned. . For this reason, the lamp approaches the mounting surface and can be separated from the glove of the lighting fixture, so that the shadow of the lamp is difficult to appear and the overall lighting fixture can be made thin.
[0008]
The lamp socket according to claim 2 is the lamp socket according to claim 1, wherein the first pair of conductive plates and the first pair of receiving metal fittings, and the second pair of conductive plates and the second pair of receiving metal fittings. Are integrally formed, and the thickness of the second pair of conductive plates is made thinner than the thickness of the first pair of conductive plates.
[0009]
According to the lamp socket of the second aspect, in addition to the same effect as in the first aspect, when the annular fluorescent lamp with the inclined base is mounted, the thickness of the receiving bracket on the side far from the mounting surface to be inserted first is reduced. thin order, the insertion force can be set small, the mounting of the lamp is not easy.
[0010]
The lamp socket according to claim 3 is the lamp socket according to claim 1, wherein the socket body has a mounting portion of a lighting device, one of the first pair of conductive plates has a ballast connection terminal, and the other has a power supply connection. Each of the second pair of conductive plates has a lighting device connection portion.
[0011]
According to the lamp socket of claim 3, in addition to the same effect as in claim 1 , the second pair of conductive plates on the lighting device side to which a high voltage is applied at the time of starting the lamp has a creepage distance to the mounting surface, since longer than creepage distance to the first pair of conductors and the mounting surface, excellent tracking resistance performance, ing to be able to secure an insulation distance.
[0012]
A lamp socket according to a fourth aspect of the present invention is the lamp socket according to the third aspect, wherein the mounting portion is a glow tube socket.
[0013]
According to the lamp socket of the fourth aspect, in addition to the same effect as the third aspect, the catch portion of the glow tube can be thinned, the entire socket can be thinned, and the entire lighting fixture can be further thinned. To do.
[0014]
A lighting fixture according to a fifth aspect includes the lamp socket according to the first, second, third or fourth aspect.
[0015]
According to the lighting device of the fifth aspect, the same effect as that of the first, second, third, or fourth aspect is obtained.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. In other words, the lamp socket includes a socket body 1, a first pair of metal fittings 2a and 2b, and a second pair of metal fittings 3a and 3b.
[0017]
The socket body 1 has a mounting surface 5 to be attached to the instrument body 4. In the embodiment, as shown in FIG. 2, a flat resin body 6 having a mounting surface 5, a resin cover 7 covering the resin body 6, and a plug receiver sandwiched between the resin body 6 and the resin cover 7. 8. 18 is a socket for a lighting device, a mounting portion for a glow tube, 21 is a quick connection terminal unlocking button mounting hole, 22 is an unlocking button, 23 is a conductive plate positioning portion group, 24 is a cover mounting claw, and 25 and 26 are lamps A support piece 27 is a locking hole of the mounting claw 24.
[0018]
The first pair of receiving metal fittings 2a and 2b are connected to the first pair of conductive plates 9a and 9b disposed close to the mounting surface 5 in the socket body 1 and are inclined in a direction away from the mounting surface 5. ing. The first pair of metal fittings 2a, 2b of the embodiment includes a pin holding portion 11 extending from the first pair of conductive plates 9a, 9b and both side portions of the pin holding portion 11 facing the mounting surface 5. And pin pinching pieces 12 extending from the tip of the pin holding portion 11. The tip of the pin holding portion 11 forms a bent portion 13 as described above, between each other becomes narrower in FIG. 3 showing the second receiving metal 3a (a).
[0019]
The second pair of receiving metal fittings 3a and 3b are connected to the first pair of conductive plates 10a and 10b, which are disposed away from the mounting surface 5 with respect to the first pair of conductive plates 9a and 9b, and are connected to the first pair. The first pair of receiving metal fittings 2a and 2b are inclined substantially parallel to the pair of receiving metal fittings 2a and 2b. The second pair of receiving metal fittings 3a and 3b has the same structure as the first pair of receiving metal fittings 2a and 2b, and the pin holding portion 11 which extends from the second pair of conductive plates 10a and 10b and is inclined, and a pin holding piece 12 extending from the pin holding portions 11 to other party while bending toward the both side portions of the pin holding portions 11 to the mounting surface 5.
[0020]
The first pair of conductive plates 9a and 9b and the first pair of receiving metal fittings 2a and 2b, and the second pair of conductive plates 10a and 10b and the second pair of receiving metal fittings 3a and 3b are integrally formed. Therefore, the plate thickness of the second pair of conductive plates 10a and 10b is made thinner than the plate thickness of the first pair of conductive plates 9a and 9b. The first conductive plates 9a and 9b are about 0.6 mm thick, for example, and the second conductive plates 10a and 10b are about 0.4 mm thick, for example.
[0021]
Further, as described above, the socket body 1 has the mounting portion 18 of the lighting device, and the second pair of conductive plates 10a and 10b each have the lighting device connection portion 16, and the first pair of conductive plates 9a. 9b has a ballast connection terminal 14 and the other has a power supply connection terminal 15. The ballast connection terminal 14 is a soldering terminal, the power supply connection terminal 15 is a fast connection terminal, and the lighting device connection portion 16 is bent and extended from the conductive plates 10a and 10b so as to be perpendicular to the mounting surface 5. The concave portion 17 for receiving the pin of the glow tube is bent at the tip. Reference numeral 19 denotes another power connection terminal formed by a quick connection terminal, which is arranged in parallel with the power connection terminal 15. Reference numeral 20 denotes another ballast connection terminal formed integrally with the power supply connection terminal 19.
[0022]
These conductive plates 9a, 9b, 10a, and 10b are respectively positioned on the positioning portion 23 of the resin body 6 using leaf springs. An unlock button 22 provided on the resin cover 7 faces the quick connection terminal, and the unlocking button 22 is configured to be unlocked by pressing the unlock button 22. Each terminal can have another terminal structure.
[0023]
In addition, 30 is a power supply wire insertion hole, 31 is an electrical inspection hole for confirming the power input to the power connection terminals 15 and 19, 32 is a mounting screw hole of the socket body, 33 is a lamp pin insertion hole of the plug receptacle 8, and 34 Is a glow pin insertion hole of the glow tube mounting portion 18, and 35 is a lamp pin of an annular fluorescent lamp that is inserted into the first receiving brackets 2a, 2b and the second receiving brackets 3a, 3b.
[0024]
According to this embodiment, since the pin clamping pieces 12 of the second pair of metal fittings 2a and 2b are bent toward the mounting surface 5, the height of the lamp socket can be reduced, and the entire socket is thin. Can be That is, as compared with the conventional example shown in FIG. 1B, the insulation distance L ₁ between the conductive plates 2a, 2b and 3a, 3b and the length L ₂ of the pin clamping piece 12 for obtaining the lamp holding force are the same. Then, the dimensions L ₃ , L ₃ ′ from the conductive plates 9 a, 9 b on the mounting surface 5 side to the tip of the pin clamping piece 12 are L ₃ <L ₃ ′, and from the conductive plates 9 a, 9 b to the lamp support piece 12. The distances L ₄ and L ₄ ′ to the tip are L ₄ <L ₄ ′.
[0025]
For this reason, the lamp is in a state of attachment close to the attachment surface 5 and the distance from the later-described glove of the luminaire can be secured, so that the shadow of the lamp is not easily produced, and the entire luminaire can be thinned.
[0026]
As a reference example, as shown in FIG. 3 (b), the pin holding portion 11 'may be inclined so as to approach the mounting surface 5, and the pin clamping piece 12' may be bent at a substantially right angle from both sides thereof. Although it is possible, this configuration results in poor yield.
[0027]
In addition, when mounting a ring-shaped fluorescent lamp whose base is inclined, the thickness of the metal fittings 3a, 3b far from the mounting surface 5 to be inserted first is thin, so that the insertion force can be set small, and the lamp pin 35 can be mounted. It's easy to do. That is, when the annular fluorescent lamp is mounted on the lamp socket, since the lamp cap is inclined with respect to the vertical, the lamp pin 35 on the side away from the mounting surface 5 is first placed in the pin clamping piece 13 and aligned. Insert the 4 lamp pins while At this time, since the pin clamping piece 13 is thin, the insertion force is small and the lamp can be easily mounted. On the other hand, the pin clamping piece 13 close to the mounting surface 5, which is outside the lamp ring diameter, is more loaded by vibrations than the pin clamping piece 13 far from the mounting surface 5, but the first metal fitting 2a. 2b and the conductive plates 9a and 9b are thick, and the lamp pin holding force can be increased.
[0028]
Further, when the annular fluorescent lamp with the inclined base is mounted, it is inserted with a deviation from the receiving surface, but the U-shaped opening side formed by the pin holding portion 11 and the pin clamping piece 12 of the receiving fittings 3a and 3b. Since the lamp pins 35 come into contact with each other, the U-shape is easy to open and easy to insert.
[0029]
Further, the second pair of conductive plates 10a and 10b on the lighting device side to which a high voltage is applied at the time of starting the lamp has a creepage distance to the mounting surface 5 between the first pair of conductive plates 9a and 9b and the mounting surface 5. Since it becomes longer than the creeping distance, it has excellent tracking resistance and can secure an insulation distance.
[0030]
In addition, since the glow tube is used, the entire socket can be thinned. That is, for example, when an electronic starter is combined, the entire socket cannot be miniaturized because the electronic starter itself is larger than the glow tube. When the glow socket of the E-type receiver was combined, the entire socket could not be made thin because of the height of the screwed portion. Therefore, by using a glow tube for the lighting device, the receiving portion can be made thin, the entire socket can be reduced in size, and the entire lighting fixture can be reduced in thickness.
[0031]
In addition, since the conductive plates 9a and 9b on the side of the power connection terminal 15 are thick, for example, the electric wire can be securely fixed as a fast connection terminal, and the heat generated by the current when the lamp is lit can be reduced.
[0032]
FIG. 6 is a perspective view of the lamp socket applied to a lighting fixture. The instrument main body 50 has a disc shape, and a ceiling fixture 51 is provided at the center, and is attached to the ceiling ceiling ceiling. 52 is a lamp socket, 53 is a ballast, 54 is an annular lamp, 55 is a glow tube, and 56 is a glove that covers the lower surface of the instrument body 50.
[0033]
In the present invention, the lighting device may be an electronic starter. Further, the pin clamping pieces 12 of the first metal fittings 2a and 2b may be directed to the side opposite to the mounting surface 5.
[0034]
【The invention's effect】
According to the lamp socket of the first aspect, since the pin holding pieces of the second pair of metal fittings are bent toward the mounting surface, the height of the lamp socket can be reduced, and the entire socket can be thinned. . For this reason, the lamp approaches the mounting surface and can be separated from the glove of the lighting fixture, so that the shadow of the lamp is difficult to appear and the overall lighting fixture can be made thin.
[0035]
According to the lamp socket of the second aspect, in addition to the same effect as in the first aspect, when the annular fluorescent lamp with the inclined base is mounted, the thickness of the receiving bracket on the side far from the mounting surface to be inserted first is reduced. thin order, the insertion force can be set small, the mounting of the lamp is not easy.
[0036]
According to the lamp socket of claim 3, in addition to the same effect as in claim 1 , the second pair of conductive plates on the lighting device side to which a high voltage is applied at the time of starting the lamp has a creepage distance to the mounting surface, since longer than creepage distance to the first pair of conductors and the mounting surface, excellent tracking resistance performance, ing to be able to secure an insulation distance.
[0037]
According to the lamp socket of the fourth aspect, in addition to the same effect as the third aspect, the catch portion of the glow tube can be thinned, the entire socket can be thinned, and the entire lighting fixture can be further thinned. To do.
[0038]
According to the lighting device of the fifth aspect, the same effect as that of the first, second, third, or fourth aspect is obtained.
[Brief description of the drawings]
FIG. 1A is a cross-sectional view of a main part of an embodiment of the present invention, and FIG. 1B is a partial cross-sectional view of a conventional example for height comparison.
FIG. 2 is an exploded perspective view of a lamp socket.
3A is a partial perspective view of a metal fitting, and FIG. 3B is a partial perspective view of a reference example.
FIG. 4 is a perspective view of an arrangement state of conductive plates.
FIG. 5 is an external perspective view of a lamp socket.
FIG. 6 is a perspective view showing a state in which a globe is removed from the annular fluorescent lamp lighting device.
7A is a partial cross-sectional view of a conventional example, and FIG. 7B is a partial perspective view of the receiving metal fitting.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Socket main body 2a, 2b 1st pair of receiving metal fittings 3a, 3b 2nd pair of receiving metal fittings 4 Instrument main body 5 Attachment surface 9a, 9b 1st pair of electrically conductive board 10a, 10b 2nd pair of electrically conductive board 11 Pin holding part 12 Pin clamping piece 14 Ballast connection terminal 15 Power supply connection terminal 16 Lighting device connection part 18 Mounting part

Claims (5)

A socket body having a mounting surface to be attached to the fixture body, and a lamp pin receiving member that is connected to a first pair of conductive plates disposed close to the mounting surface in the socket body and inclined in a direction away from the mounting surface of the first pair of receiving metal, of the first is connected to a pair of conductive plates on a second pair of conductive plates which are spaced apart from said mounting surface and said first pair of receiving metal and a second pair of receiving metal for receiving the lamp pins which is substantially inclined parallel to the position to the first pair of receiving metal so as to substantially overlap the opposite side to the mounting surface, the first pair of receiving fitting and the second pair of receiving metal has a pin holding portion inclined by respectively extending from the first pair of conductive plate and the second pair of conductive plates, the side portions of the pin holding portion and the When bending toward the mounting surface Than said pin holding portions have a pin holding pieces extending to other party, said pin holding piece of the first pair of receiving metal, the said first pair of conductive plate side edge is the attachment to the A lamp socket, wherein the lamp socket is formed in parallel with the surface . The first pair of conductive plates and the first pair of receiving metal fittings, and the second pair of conductive plates and the second pair of receiving metal fittings are integrally formed, and the second pair The lamp socket according to claim 1, wherein a thickness of the pair of conductive plates is thinner than a thickness of the first pair of conductive plates. The socket body has a lighting device mounting portion, one of the first pair of conductive plates has a ballast connection terminal, the other has a power supply connection terminal, and the second pair of conductive plates has The lamp socket according to claim 1, each having a lighting device connection portion. The lamp socket according to claim 3, wherein the attachment portion is a glow tube socket. A lighting fixture comprising the lamp socket according to claim 1, 2, 3, or 4.

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