JP6405607B2 - Lighting lamp and lighting device - Google Patents

Description

  The present invention relates to a light bulb-shaped illumination lamp and an illumination device including the illumination lamp, and more particularly to an arrangement of a lighting circuit and wiring in a housing of the illumination lamp.

  An LED light bulb is equipped with a power circuit (synonymous with a lighting circuit) in which an electrolytic capacitor is arranged on the base side of the power board, and an input power source that connects the base and the power board when the power circuit is placed in a cylindrical casing. There is one in which the line and the output power line connecting the power supply board and the LED module intersect in the air. This improves the design freedom of the power supply circuit (see, for example, Patent Document 1).

  In addition, a lighting circuit that includes a power supply circuit (synonymous with a lighting circuit) that is held by a holding member without being mounted on the power supply circuit board, and that is arranged so that a power supply line connecting the base and the power supply circuit board passes through the holding member. There is a device. Thereby, while maintaining the holding | maintenance state of a capacitor | condenser reliably, a holding member can be attached to a nozzle | cap | die, without twisting a feeder, and the assembly property is improved (for example, refer patent document 2).

JP2011-198489A JP 2012-146574 A

  Although the conventional technology has a certain effect (such as downsizing of the lamp and improvement of assemblability) as a technology for arranging circuit components in a narrow space inside the housing of the bulb-type lamp, commercial power is supplied from the base to the lighting circuit. As the power supply line to be used, a lead wire with an insulating coating is used, which has a problem in terms of manufacturing cost reduction.

  In the LED light bulb of Patent Document 1, a pair of cords that are input power supply lines and a pair of cords that are output power supply lines are arranged close to each other, and in order to ensure insulation between the cords, It is necessary to apply insulation coating. Further, in the illumination device of Patent Document 2, the power supply line and the capacitor are arranged close to each other, and insulation of the outer film of the capacitor is not guaranteed, so that insulation between the power supply line and the capacitor is ensured. In this case, it is necessary to apply an insulation coating to the feeder line.

  As described above, in the conventional lighting lamp, in order to ensure insulation between the power supply lines and between the power supply lines and the electronic components inside the housing, the power supply lines are thermally contracted to lead wires with insulation coating or lead wires without insulation coating. A tube that was fitted with a tube to ensure insulation was used. In addition, when using a power supply wire with insulation coating, the cost of parts is higher than when using a non-insulation coating, and the manufacturing process and the number of parts managed are increased, resulting in high manufacturing costs. It was.

  The present invention has been made in view of the above, and realizes an arrangement configuration that ensures sufficient insulation even when a power supply line that is not insulated is used, and uses a power supply line that is not insulated. An object of the present invention is to provide an illumination lamp with reduced manufacturing costs.

Lighting lamp according to the present invention includes a light source, a cylindrical housing, a fitted mouthpiece on the end of the housing, is accommodated in the housing, and a lighting circuit for supplying power to the light source, the mouthpiece and while connecting the lighting circuit, interposed between the first and second power supply line for supplying a commercial power to the lighting circuit supplied via the mouthpiece, the first feed line and a second feed line comprises a first power supply line and the second power supply line and the non-conductive shield disposed opposite the portion that is not insulated coating of at least one of the feed lines, the.

  According to the present invention, since the non-conductive shielding plate is interposed between a pair of power supply lines that supply commercial power from the base to the lighting circuit, insulation between the power supply lines can be ensured. There is no need to apply insulation coating to the power supply line, and a low-cost illumination lamp can be provided by using a power supply line that is not insulated.

It is sectional drawing which shows the illumination lamp which concerns on Embodiment 1 of this invention. It is a figure which shows the relationship between the lighting circuit of the illumination lamp concerning Embodiment 1 of this invention, a resin housing | casing, and a nozzle | cap | die. It is an enlarged view of the wire guide formation part of the resin housing | casing of the illumination lamp which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the relationship between the 1st electric power feeding line and 2nd electric power feeding line of the illumination lamp concerning Embodiment 1 of this invention, Fig.4 (a) is sectional drawing orthogonal to a circuit board, FIG.4 (b) ) Is a cross-sectional view parallel to the circuit board. It is the figure seen from A view of Fig.4 (a). It is sectional drawing which shows another form of the illumination lamp which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the illumination lamp which concerns on Embodiment 2 of this invention, Fig.7 (a) is sectional drawing of the whole illumination lamp, FIG.7 (b) is in the AA line of Fig.7 (a). It is sectional drawing. It is sectional drawing which shows the illumination lamp which concerns on Embodiment 3 of this invention, Fig.8 (a) is sectional drawing of the whole illumination lamp, FIG.8 (b) is in the AA line of Fig.8 (a). It is sectional drawing. It is sectional drawing which shows the illumination lamp which concerns on Embodiment 4 of this invention, Fig.9 (a) is sectional drawing of the whole illumination lamp, FIG.9 (b) is in the AA line of Fig.9 (a). It is sectional drawing. It is a figure which shows the illuminating device provided with the illumination lamp which concerns on Embodiment 1-4 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by the form of drawing shown below. Moreover, the same code | symbol is attached | subjected to the same structure in each figure.

Embodiment 1 FIG.
1 is a cross-sectional view showing an illumination lamp according to Embodiment 1. FIG. As shown in FIG. 1, the illumination lamp 100 is a light bulb-shaped illumination lamp having a light source 1, a globe 2, a housing 3, a base 4, and a lighting circuit 5.

  The light source 1 includes a light emitting diode (LED), which is a light emitting means, and an LED substrate 11 on which the LED 10 is mounted. In addition to the LED 10 and the LED substrate 11, the light source 1 includes electronic components that are required according to the design specifications of the illumination lamp 100.

  The LED substrate 11 is formed with a through hole 110 penetrating in the thickness direction. The LED substrate 11 is disposed on the housing 3 so that the through hole 110 matches the through hole 310 formed in the housing 3, and an attachment member (not shown) such as a screw is screwed into the through holes 110 and 310. By being inserted, it is attached to the housing 3. The LED board 11 is electrically connected to the lighting circuit 5 by a wiring member (not shown) such as a wire harness or a connector, and the driving power is transmitted from the lighting circuit 5 through the wiring member. Emits light.

  The globe 2 is formed in a curved surface shape, and is fitted to the housing 3 so as to cover the light emission side of the light source 1. The globe 2 is made of a base material (a material having translucency) through which light emitted from the light source 1 such as glass or resin is transmitted. The resin constituting the globe 2 is, for example, polycarbonate or acrylic, and is selected according to product specifications. The globe 2 may have not only a function of transmitting light but also a function of diffusing, condensing and reflecting according to the specifications of the illumination lamp 100. These functions are directly realized by the base material itself by forming a diffusion layer (or surface), a lens, a reflective layer (or surface), etc. when molding the base material of the globe 2 such as glass or resin. Alternatively, another member that realizes these functions may be combined on the surface of the base material.

  The casing 3 includes a cylindrical resin casing 30 that houses the lighting circuit 5 therein, and a metal casing 31 that is attached to the outside of the resin casing 30. The resin casing 30 is formed using a synthetic resin material such as plastic, ceramic, or the like. In addition, a support portion that supports a circuit board 50 that is a circuit component of the lighting circuit 5 is formed inside the resin casing 30. When the circuit board 50 is supported by the support portion formed in the resin casing 30, the electronic component mounted on the circuit board 50 is in a state where a predetermined gap is provided between the inner surface of the resin casing 30. It is enclosed in the internal space of the housing 30. By accommodating the lighting circuit 5 in the resin casing 30 in this manner, it is possible to prevent external mechanical stress from being applied to the electronic component mounted on the circuit board 50.

  The metal casing 31 has a shape having a flat surface to which the LED substrate 11 of the light source 1 is attached, and is attached to the outside of the resin casing 30 so as to cover the resin casing 30. The globe 2 is attached so as to cover a plane (light emitting surface of the light source 1) to which the LED substrate 11 of the metal casing 31 is attached. The metal casing 31 is formed with a through hole 310 into which an attachment member (not shown) such as a screw for attaching the LED substrate 11 is screwed. Further, a through hole (not shown) for passing a wiring member connecting the LED substrate 11 and the lighting circuit is formed.

  The base 4 has a structure in which one end is screwed and connected to a socket (for example, see FIG. 10) of the lighting device, and is an input end that inputs commercial power to the lighting lamp 100 via the lighting device. Further, the other end of the base 4 is fitted into the resin casing 30 of the casing 3, and commercial power is supplied to the lighting circuit 5 through the base 4.

  As described above, the illumination lamp 100 has the light source 1 attached to one end side of the casing 3 having the resin casing 30 and the metal casing 31, and the globe 2 is fitted, and the base 4 is fitted to the other end side. The lighting circuit 5 is accommodated in the internal space of the housing 3. When the light source 1, the globe 2, the base 4 and the lighting circuit 5 are combined with the housing 3, these form a bulb-shaped outer shape as a whole.

  Next, the lighting circuit 5 accommodated in the resin casing 30 will be described. The lighting circuit 5 includes, as circuit components, a circuit board 50 on which a wiring pattern is formed and an electronic component is mounted, a resistor 51 and a fuse 52 connected to the circuit board 50 and the base 4, and a plurality of other electronic components. And. Further, the lighting circuit 5 has an AC-DC converter circuit that converts AC power, which is commercial power, into direct current that drives the LED 10, and supplies direct-current driving power converted through the AC-DC converter circuit to the light source 1. . Preferably, the lighting circuit 5 has a load fluctuation detection function, a control function for controlling the drive current output from the AC-DC converter circuit in accordance with the load fluctuation, and a commercial power supply path in order to drive the LED 10 stably. Further, it has a filter function or the like that removes or reduces noise flowing in and / or out through.

  The resistor 51 prevents or reduces the noise mixed in the commercial power from being input to the illumination lamp 100, whereby the operation of the illumination lamp 100 is stabilized. The fuse 52 is blown when the commercial power becomes an abnormal voltage or when an excessive current is generated inside the illumination lamp 100, and protects the illumination lamp 100 and the illumination device to which the illumination lamp 100 is attached. . Here, the resistor 51 and the fuse 52 are components with lead wires (axial components), and the following description will be made assuming that the lead wire of the fuse 52 is the first power supply line 60 and the lead wire of the resistor 51 is the second power supply wire 61.

  The first power supply line 60 (fuse 52) is disposed on one side of the circuit board 50 (right side in FIG. 1), and the second power supply line 61 (resistor 51) is on the other side of the circuit board 50 (left side in FIG. 1). ). That is, the circuit board 50 is disposed between the first power supply line 60 and the second power supply line 61. The first power supply line 60 and the second power supply line 61 each have one end connected to the base 4 and the other end connected to the circuit board 50, and commercial power supplied via the base 4 is supplied to the lighting circuit 5. Supply.

  One end of the first power supply line 60 is sandwiched between the outer side surface of the resin casing 30 and the inner side surface (clamping portion 40) of the base 4, and is electrically connected to the base 4. On the other hand, the other end of the first power supply line 60 is inserted into the through hole of the circuit board 50 from one surface side of the circuit board 50 and is electrically connected to the wiring pattern of the circuit board 50 using solder or the like. One end of the second feeder 61 is electrically connected to the center electrode 41 of the base 4 using solder or the like. On the other hand, the other end of the second feeder 61 is inserted into the through hole of the circuit board 50 from the other side of the circuit board 50 and is electrically connected to the wiring pattern of the circuit board 50 using solder or the like. Then, commercial power (alternating current) is input to the lighting circuit 5 via the first and second feeders 60 and 61 from the sandwiching portion 40 and the center electrode 41 that are in contact with the socket (for example, see FIG. 10) of the lighting device. Is done. The first power supply line 60 and the second power supply line 61 connected in this way have a relationship of different polarities of commercial power (alternating current).

  Although not shown in FIG. 1, an electronic component having wiring such as a resistor 51 and a fuse 52 mounted on the circuit board 50 may be further adhered and held on the circuit board 50 with an adhesive or the like. By bonding and holding the circuit board 50 to the circuit board 50, the wiring of the electronic component is fixed at a predetermined position on the circuit board 50, so that the workability of the assembly operation of the illumination lamp 100 is improved. Further, the resin case 30 may be filled with a heat conductive filling member, and the circuit components including the resistor 51 and the fuse 52 included and supported in the resin case 30 may be sealed with the filling member. By sealing with the heat conductive filling member, the heat generated in the circuit component is transmitted to the housing 3 via the filling member, and the heat dissipation of the lighting circuit 5 can be improved.

  Next, attachment of the lighting circuit 5 to the inside of the resin casing 30 and connection of the first power supply line 60 and the second power supply line 61 to the base 4 will be described. FIG. 2 is a diagram showing a relationship between the lighting circuit of the illumination lamp according to the first embodiment, the resin casing, and the base. FIG. 3 is an enlarged view of a wire guide forming portion of the resin casing of the illumination lamp according to the first embodiment. 4 is a cross-sectional view showing the relationship between the first power supply line and the second power supply line of the illumination lamp according to Embodiment 1, and FIG. 4 (a) is a cross-sectional view orthogonal to the circuit board, and FIG. ) Is a cross-sectional view parallel to the circuit board. FIG. 5 is a view as seen from a view A in FIG.

  As shown in FIG. 2, the resin casing 30 has a cylindrical shape having a space inside and having openings 301 and 302 above and below. The resin housing 30 includes a cylindrical main body portion 303 that accommodates the lighting circuit 5 therein, a weight-like taper portion 304 that is connected to an end portion of the main body portion 303, and the main body portion 303 side of the taper portion 304. And a cylindrical base attaching portion 305 provided to be connected to the non-end portion. The tapered portion 304 has a shape in which the inner diameter decreases as it approaches the base attachment portion 305 side from the main body portion 303 side, and the inner diameter of the main body portion 303 is larger than the inner diameter of the base attachment portion 305. Further, a boss 306 protruding from the inner side surface is formed on the inner side surface of the main body 303 along the axial direction.

  The lighting circuit 5 is inserted into the resin casing 30 from the opening 301 side so that the end of the circuit board 50 is along the boss 306 formed on the inner surface of the resin casing 30. Then, the circuit board 50 is inserted to a position where it abuts against the inner surface of the tapered portion 304 of the resin casing 30. That is, the boss 306 of the resin casing 30 serves as a guide for inserting the lighting circuit 5 and positioning in the direction orthogonal to the insertion direction of the lighting circuit 5 in the resin casing 30 (left-right direction in FIG. 2). It is carried out. Further, the tapered portion 304 of the resin casing 30 supports the circuit board 50 and positions the lighting circuit 5 in the resin casing 30 in the insertion direction (vertical direction in FIG. 2). 2 is not limited to the support structure and positioning structure shown in FIG. 2, and the lighting circuit 5 may be accommodated in the resin casing 30 by another support structure and positioning structure.

  As shown in FIGS. 2 and 3, a wire guide 307 is formed at the end of the base attachment portion 305 of the resin housing 30. The through-line guide 307 is for passing the first power supply line 60, and is a concave part in which the end of the base attachment part 305 is cut out in a square shape. 2 and 3 show the rectangular cut-out guide 307, but it may have another shape such as a round shape as long as the first power supply line 60 can be passed. Alternatively, a through hole may be formed on the side surface of the base mounting portion 305, and the first power supply line 60 may be wired to the outer surface of the resin casing 30 through the through hole. The first power supply line 60 is bent by the wiring guide 307 and wired on the outer surface of the resin housing 30. When the base 4 is fitted to the resin housing 30, the bent portion of the first power supply line 60 is provided. If excessive stress does not occur, wiring may be performed along the edge of the end of the base attachment portion 305 of the resin housing 30 without providing the wire guide 307.

  The lighting circuit 5 accommodated in the resin casing 30 has an arrangement configuration in which a circuit board 50 is interposed between the first power supply line 60 and the second power supply line 61 as shown in FIG. The first power supply line 60 is wired from the inside of the resin casing 30 to the outer surface of the resin casing 30 via the wiring guide 307. Further, the circuit board 50 is interposed between the first power supply line 60 and the second power supply line 61 up to a position facing the wiring guide 307. That is, the circuit board 50 is interposed between the first power supply line 60 and the second power supply line 61 over the entire length of the first power supply line 60 in the resin casing 30. The second feeder 61 passes through the opening 302 of the resin casing 302 and is connected to the center electrode 41 of the base 4.

  Further, as shown in FIG. 5, in a state where the lighting circuit 5 is accommodated in the resin casing 30, the wiring guide 307 is the end of the resin casing 30 on the first power supply line 60 side when viewed from the circuit board 50. And provided at an end portion that is the farthest from the circuit board 50 in the direction orthogonal to the circuit board 50 (the left-right direction in FIG. 5). Since the first power supply line 60 is wired from the circuit board 50 toward the wiring guide 307, the first power supply line 60 is separated from the circuit board 50 and the second power supply line 61 as it goes to the wiring guide 307. Are wired.

  Here, since the first power supply line 60 and the second power supply line 61 are different polar parts of commercial power (alternating current), the spatial distance and creepage distance required for safety based on the product safety regulations of each country. Must be secured. For example, in an illumination lamp to which the Electrical Appliance and Material Safety Law (Japan) is applied, a spatial distance of 1.5 mm or more and a creepage distance of 1.5 mm or more are required when the voltage between different polar lines is 100 VAC. If the distance required for safety cannot be secured, it is necessary to take measures such as applying an insulation coating to the power supply line.

  In the illumination lamp 100 according to the present embodiment, the base material of the circuit board 50 is interposed as a shielding plate between the first power supply line 60 and the second power supply line 61. The circuit board 50 has safety requirements based on product safety regulations, and the base material of the circuit board 50 is a non-conductive insulator. Accordingly, the spatial distance in this case is the distance (D1) indicated by the arrow in FIG. Since the board thickness (D2) of the base material of the circuit board 50 is 1.6 mm which is a board thickness of a general board, the distance (D1) between the first feeding line 60 and the second feeding line 61 is 1.5 mm. Thus, a safety distance is secured. In this case, the creepage distance between the first feeder 60 and the second feeder 61 is longer than the spatial distance (D1) shown in FIG. . That is, the first power supply line 60 and the second power supply line 61 are physically shielded by the circuit board 50 and electrically insulated.

  As described above, the shielding plate made of the circuit board 50 is interposed between the first power supply line 60 and the second power supply line 61, so that it is necessary for safety between the first power supply line 60 and the second power supply line 61. Distance (space distance and creepage distance) can be secured. And since the safety distance is ensured, it is not necessary to cover the first feeder 60 and the second feeder 61 with an insulating sleeve or the like, and the first feeder 60 and the second feeder 61 are Not insulated.

  In the case of an illumination lamp using a power supply line with an insulation sleeve, for example, in the assembly process of the illumination lamp, an operation of peeling off the insulation sleeves at both ends in order to solder the power supply line to the circuit board 50 or the base 4 occurs. In addition, when a necessary safety distance cannot be ensured between the power supply lines, an operation of applying an insulating coating such as attaching a heat-shrinkable tube to a part or the whole of the power supply lines occurs. On the other hand, in the case of the illumination lamp 100 that uses the first power supply line 60 and the second power supply line 61 that are not covered with insulation, the work relating to these insulations is not required, so that the assembly process can be simplified and the manufacturing cost can be reduced. Can be reduced.

  In addition, since the circuit board 50 is interposed over the entire length of the first power supply line 60 in the resin housing 30, the circuit board 50 physically prevents the first power supply line 60 and the second power supply line 61 from contacting or approaching. It also functions as a simple shielding plate. The function of the circuit board 50 as a physical shielding plate is exhibited even when the volume of the internal space required for the lighting circuit 5 of the resin casing 30 is reduced. The contact and proximity of the power supply line 60 and the second power supply line 61 can be prevented, and the conventional illumination lamp can be made smaller.

  Further, by providing the wire guide 307 at the end of the resin casing 30 that is located farthest from the circuit board 50 in the direction orthogonal to the circuit board 50 (the left-right direction in FIG. 5), the first power supply line 60 is provided. Is wired away from the circuit board 50 and the second power supply line 61 as it goes to the wiring guide 307, so that the contact and approach of the first power supply line 60 and the second power supply line 61 can be prevented more reliably. it can. Even when the thickness of the base material of the circuit board 50 is less than 1.5 mm, the first power supply line 60 is wired away from the second power supply line 61. A sufficient safety distance from the power supply line 61 can be ensured. The position where the wire guide 307 is provided is not limited to the position shown in FIG. 5, but may be the end of the resin casing 30 on the first power supply line 60 side from the circuit board 50, but at a position away from the circuit board 50. The above effect is exhibited as the thickness increases.

  Here, as the first embodiment, the illumination lamp 100 in which the first power supply line 60 is the lead wire of the fuse 52 and the second power supply wire 61 is the lead wire of the resistor 51 has been described, but a circuit based on the required specification of the illumination lamp is described. Depending on the arrangement of the components, a wiring material (such as a tin plated wire) that does not have the resistor 51 and the fuse 52 may be used as a power supply line. As shown in FIGS. 1, 2, and 4, in the case of power supply lines 60 and 61 having a resistor 51 and a fuse 52, the element body of the resistor 51 and fuse 52 abuts against the circuit board 50. , 61 has a gap between them. On the other hand, in the case of a power supply line that does not have the resistor 51 and the fuse 52, the power supply line may come into contact with the circuit board 50 and the distance between the power supply lines may be shortened. However, in the illumination lamp according to the present embodiment, the resistance line 51, even when a power supply line having no fuse 52 is used, a sufficient safety distance can be secured between the power supply lines.

  6 is a cross-sectional view showing another form of the illumination lamp according to Embodiment 1. FIG. In addition, the same code | symbol is attached | subjected to the same structure as FIGS. As shown in FIG. 6, the illumination lamp 100a is connected to the circuit board 50 and the base 4 of the lighting circuit 5a, and first and second supply commercial power supplied via the base 4 to the lighting circuit 5a. Feed lines 62 and 63 are provided. The first and second feeders 62 and 63 are tin-plated wires that are not insulated. The first power supply line 62 is disposed on one surface side of the circuit board 50 and is inserted into the through hole of the circuit board 50 from the one surface side of the circuit board 50, similarly to the first power supply line 60 shown in FIG. The wiring pattern of the circuit board 50 is electrically connected using solder or the like. Similarly to the second power supply line 61 shown in FIG. 1, the second power supply line 63 is arranged on the other surface side of the circuit board 50 and is inserted into the through hole of the circuit board 50 from the other surface side of the circuit board 50. Then, it is electrically connected to the wiring pattern of the circuit board 50 using solder or the like.

  As described above, the illumination lamp 100a is similar to the illumination lamp 100 shown in FIGS. 1 to 5 in the state where the lighting circuit 5a is accommodated in the resin casing 30, and the first feeder 62 and the second feeder 63. Between the first power supply line 62 and the second power supply line 63, a safety distance is ensured. The first power supply line 62 and the second power supply line are electrically insulated. Therefore, it is not necessary to apply insulation coating to the first power supply line 62 and the second power supply line 63. Therefore, effects such as a reduction in manufacturing cost can be obtained as in the case of the illumination lamp 100 of FIG.

Embodiment 2. FIG.
In the first embodiment, the illumination lamps 100 and 100a having the arrangement configuration in which the circuit board 50 is interposed between the pair of power supply lines have been described. The arranged illumination lamp will be described.

  7 is a cross-sectional view showing the illumination lamp according to Embodiment 2, FIG. 7 (a) is a cross-sectional view of the entire illumination lamp, and FIG. 7 (b) is an AA line in FIG. 7 (a). FIG. In FIG. 7B, the first and second feeder lines 62 and 63 are indicated by broken lines. Moreover, the same code | symbol is attached | subjected to the structure same as FIGS. 1-6, and description is abbreviate | omitted. As shown in FIG. 7, the illumination lamp 100b according to Embodiment 2 is a light bulb-shaped illumination lamp having a light source 1, a globe 2, a housing 3, a base 4, and a lighting circuit 5b.

  The lighting circuit 5b is a circuit board 50 on which a wiring pattern is formed and an electronic component is mounted as a circuit component, and a vertical board 53 that is fixed on the circuit board 50 and extends substantially perpendicular to the circuit board 50. And first and second feeders 62 and 63 connected to the circuit board 50 and the base 4 and a plurality of other electronic components. The first and second power supply lines 62 and 63 are tin-plated wires that are not covered with insulation as in the case of the power supply lines shown in FIG.

  As shown in FIG. 7B, the first power supply line 62 and the second power supply line 63 are arranged on the side of the circuit board 50 where the vertical board 53 is fixed. The first power supply line 62 is disposed on one surface side of the vertical substrate 53 (the back side in FIG. 7A and the upper side in FIG. 7B), and the second power supply line 63 is on the other surface of the vertical substrate 53. It is arranged on the side (the near side in FIG. 7A, the lower side in FIG. 7B). One end of the first power supply line 62 is sandwiched between the outer side surface of the resin housing 30 and the inner side surface (the clamping unit 40) of the base 4 and is electrically connected to the base 4. On the other hand, the other end of the first power supply line 62 is inserted into the through hole of the circuit board 50 from the side where the vertical board 53 of the circuit board 50 is fixed, and is electrically connected to the wiring pattern of the circuit board 50 using solder or the like. It is connected to the. One end of the second feeder 63 is electrically connected to the center electrode 41 of the base 4 using solder or the like. On the other hand, the other end of the second feeder 63 is inserted into the through hole of the circuit board 50 from the side where the vertical board 53 of the circuit board 50 is fixed, and is electrically connected to the wiring pattern of the circuit board 50 using solder or the like. It is connected to the.

  Similar to the circuit board 50, the vertical board 53 has safety requirements based on product safety regulations, and the base material of the vertical board 53 is a non-conductive insulator. The vertical substrate 53 has one side longer than the length from the connecting portion between the first and second feeders 62 and 63 and the circuit board 50 to the wire guide 307 provided at the end of the resin housing 30, and the circuit board A plate-like member having one side extending from 50 to the vicinity of the inner side surface of the resin casing 30. That is, the vertical substrate 53 is interposed between the first power supply line 62 and the second power supply line 63 over the entire length of the first power supply line 62 in the resin casing 30.

  The line guide 307 provided at the end of the resin casing 30 is the end of the resin casing 30 on the first power supply line 62 side when viewed from the vertical substrate 53 and is in a direction orthogonal to the vertical substrate 53. It is provided at an end portion which is the position farthest from the vertical substrate 53 (in the vertical direction in FIG. 7B). Since the first power supply line 62 is wired from the circuit board 50 toward the wiring guide 307, the first power supply line 62 is separated from the vertical board 53 and the second power supply line 63 as it goes to the wiring guide 307. Are wired.

  As described above, in the illumination lamp 100b, the shielding plate made of the vertical substrate 53 is interposed between the first power supply line 62 and the second power supply line 63 in a state where the lighting circuit 5b is accommodated in the resin casing 30. It has an arrangement configuration. Then, by interposing a non-conductive shielding plate between the first power supply line 62 and the second power supply line 63, similarly to the illumination lamp 100 of the first embodiment, the first power supply line 62 and the second power supply line are provided. A distance necessary for safety (a spatial distance and a creepage distance of 1.5 mm or more) can be secured between the electric wire 63 and the electric wire 63. For this reason, it is not necessary to apply insulation coating to the first power supply line 62 and the second power supply line 63 with an insulating sleeve or the like. In the assembly process of the illumination lamp 100b, work relating to insulation coating is not necessary, and the assembly process can be simplified. Manufacturing cost can be reduced.

  Further, since the vertical substrate 53 is interposed over the entire length of the first power supply line 62 in the resin casing 30, the vertical substrate 53 physically prevents contact and approach between the first power supply line 62 and the second power supply line 63. It functions as a simple shielding plate. The function of the vertical substrate 53 as a physical shielding plate is exhibited even when the volume of the internal space required for the lighting circuit 5b of the resin casing 30 is reduced. It is possible to prevent the power supply line 62 and the second power supply line 63 from coming into contact with each other and approach them, and to make the conventional illumination lamp smaller.

  Further, the first wire guide 307 is provided at the end of the resin casing 30 that is located farthest from the vertical substrate 53 in the direction perpendicular to the vertical substrate 53 (the vertical direction in FIG. 7B), thereby Since the power supply line 62 is wired away from the vertical board 53 and the second power supply line 63 as it goes to the wiring guide 307, the contact and approach of the first power supply line 62 and the second power supply line 63 can be prevented more reliably. can do. Even when the thickness of the base material of the vertical substrate 53 is less than 1.5 mm, the first power supply line 62 is wired away from the second power supply line 63, so the first power supply line 62 and the second power supply line 62 are connected to each other. A sufficient safety distance from the power supply line 63 can be secured. 7 is not limited to the position shown in FIG. 7 and may be the end of the resin housing 30 on the first power supply line 62 side from the vertical board 53, but at a position away from the vertical board 53. The above effect is exhibited as the thickness increases.

Embodiment 3 FIG.
In the first and second embodiments, the illumination lamps 100, 100a, and 100b using the base material of the circuit board 50 or the vertical board 53 as the shielding plate interposed between the pair of power supply lines have been described. An illumination lamp using a rib formed integrally with a resin housing as a shielding plate interposed between a pair of power supply lines will be described.

  8 is a cross-sectional view showing the illumination lamp according to Embodiment 3, FIG. 8 (a) is a cross-sectional view of the entire illumination lamp, and FIG. 8 (b) is a line AA in FIG. 8 (a). FIG. In FIG. 8B, the first and second feeder lines 62 and 63 are indicated by broken lines. Moreover, the same components as those in FIGS. As shown in FIG. 8, the illumination lamp 100c according to Embodiment 3 is a light bulb-shaped illumination lamp having a light source 1, a globe 2, a housing 3a, a base 4, and a lighting circuit 5c.

  The housing 3 a includes a cylindrical resin housing 32 that houses the lighting circuit 5 c therein, and a metal housing 31 that is attached to the outside of the resin housing 32. The resin casing 32 is formed using a synthetic resin material such as plastic, ceramic, or the like. In the internal space of the resin casing 32 on the side to which the base 4 is connected, a shielding rib 308 is provided to separate the internal space into two. The shielding rib 308 extends from the inner side surface of the resin casing 32 and is formed integrally with the resin casing 32. Further, the shielding rib 308 has a thickness equivalent to the plate thickness of the circuit board 54, and abuts against the entire end face of the circuit board 54 on the base 4 side in a state where the lighting circuit 5 c is accommodated in the resin casing 32. Formed in position and shape. The contact portion between the circuit board 54 and the shielding rib 308 is bonded with an adhesive or the like, and the circuit board 54 and the shielding rib 308 form a single shielding plate.

  The lighting circuit 5c includes, as circuit components, a circuit board 54 on which a wiring pattern is formed and electronic components are mounted, and first and second power supply lines 62 and 63 connected to the circuit board 54 and the base 4. And a plurality of other electronic components. The first and second power supply lines 62 and 63 are tin-plated wires that are not covered with insulation as in the case of the power supply lines shown in FIG. Similarly to the power supply line shown in FIG. 6, the first power supply line 62 is disposed on one surface side of the circuit board 54, and the second power supply line 63 is disposed on the other surface side of the circuit board 54. The wiring pattern is electrically connected.

  The line guide 307 provided at the end of the resin casing 32 is the end of the resin casing 32 on the first power supply line 62 side when viewed from the shielding rib 308 and in a direction orthogonal to the shielding rib 308 (see FIG. 8 (b) in the left-right direction) provided at the end that is the farthest from the shielding rib 308. Since the first power supply line 62 is wired from the circuit board 54 toward the wiring guide 307, the circuit board 54, the shielding rib 308, and the second power supply line 63 move toward the wiring guide 307. It is wired away from.

  As described above, the illumination lamp 100c includes the base material of the circuit board 54 and the shielding rib between the first power supply line 62 and the second power supply line 63 in a state where the lighting circuit 5c is accommodated in the resin casing 32. In this arrangement, a shielding plate 308 is interposed. Thus, by providing the shielding rib 308 on the resin housing 32, only the circuit board 54 is used, for example, when the connection portion of the circuit board 54 is near the end of the circuit board 54. Then, when it is difficult to make an arrangement configuration in which a shielding plate is interposed between the power supply lines over the entire length of the power supply line, a nonconductive property is provided between the first power supply line 62 and the second power supply line 63 over the entire length of the power supply line. An arrangement configuration in which the shielding plate (the circuit board 54 and the shielding rib 308) is interposed may be employed.

  Then, by interposing a non-conductive shielding plate between the first power supply line 62 and the second power supply line 63, similarly to the illumination lamp 100 of the first embodiment, the first power supply line 62 and the second power supply line are provided. A distance necessary for safety (a spatial distance and a creepage distance of 1.5 mm or more) can be secured between the electric wire 63 and the electric wire 63. For this reason, it is not necessary to apply insulation coating to the first power supply line 62 and the second power supply line 63 with an insulating sleeve or the like. In the assembly process of the illumination lamp 100c, work related to insulation coating is not required, and the assembly process can be simplified. Manufacturing cost can be reduced. Further, since the shielding rib 308 is formed integrally with the resin casing 32, it is not necessary to separately attach components to the resin casing 32, and these arrangement configurations can be realized at low cost.

  Further, since the circuit board 54 and the shielding rib 308 are interposed over the entire length of the first power supply line 62 in the resin casing 32, the circuit board 54 and the shielding rib 308 are connected to the first power supply line 62 and the second power supply line 63. It functions as a physical shielding plate that prevents contact and approach. The function as a physical shielding plate is exhibited even when the volume of the internal space required for the lighting circuit 5c of the resin casing 32 is reduced, so that the first feeder 62 and the small illumination lamp can be used. While the contact and approach of the second feeder 63 can be prevented, the conventional illumination lamp can be made smaller.

  Further, the first wire guide 307 is provided at the end of the resin casing 32 that is located farthest from the shielding rib 308 in the direction orthogonal to the shielding rib 308 (the left-right direction in FIG. 8B). Since the power supply line 62 is wired away from the shielding rib 308 and the second power supply line 63 toward the wiring guide 307, the contact and approach between the first power supply line 62 and the second power supply line 63 can be prevented more reliably. can do. Even when the thickness of the shielding rib 308 is less than 1.5 mm, the first power supply line 62 is wired away from the second power supply line 63, so that the first power supply line 62 and the second power supply line 63 are arranged. A sufficient safety distance can be secured between the two. The position where the wire guide 307 is provided is not limited to the position shown in FIG. 8, but may be the end of the resin casing 32 on the first power supply line 62 side from the shielding rib 308, but at a position away from the shielding rib 308. The above effect is exhibited as the thickness increases.

Embodiment 4 FIG.
In the first to third embodiments, the illumination lamps 100 and 100a to 100c in which the shielding plate is interposed between the pair of power supply lines along the axial direction of the resin casings 30 and 32 have been described. In the fourth embodiment, the shielding is performed. An illumination lamp will be described in which a plate is provided and the opening on the base side of the resin casing is closed to reliably prevent contact and proximity between the feeder lines.

  FIG. 9 is a cross-sectional view showing an illumination lamp according to Embodiment 4, FIG. 9 (a) is a cross-sectional view of the entire illumination lamp, and FIG. 9 (b) is an AA line in FIG. 9 (a). FIG. In FIG. 9B, the first and second feeder lines 62 and 63 are indicated by broken lines. Moreover, the same code | symbol is attached | subjected to the same structure as FIGS. 1-8, and description is abbreviate | omitted. As shown in FIG. 9, the illumination lamp 100d according to Embodiment 4 is a light bulb-shaped illumination lamp having a light source 1, a globe 2, a housing 3b, a base 4, and a lighting circuit 5c.

  The housing 3 b includes a cylindrical resin housing 33 that accommodates the lighting circuit 5 c inside, and a metal housing 31 that is attached to the outside of the resin housing 33. The resin casing 33 is formed using a synthetic resin material such as plastic, ceramic, or the like. As in the case of the illumination lamp 100c shown in FIG. 8, a shielding rib 308 that separates the internal space into two is provided in the internal space of the resin casing 33 on the side to which the base 4 is connected. The shielding rib 308 forms a single shielding plate.

  The resin housing 33 has a bottom portion 309 that closes the opening on the first power supply line 62 side from the shielding rib 308 in the opening 302 (see FIG. 2) on the side where the base 4 is fitted. The bottom portion 309 is formed integrally with the resin casing 33 and the shielding rib 308. A through hole 310 that penetrates in the thickness direction is formed in the bottom portion 309, and the first power supply line 62 passes through the through hole 310 and is wired on the outer surface of the resin casing 33. Further, a concave passage guide 311 is formed from the passage hole 310 toward the periphery of the resin casing 33 on the surface of the bottom portion 309 on which the base 4 is fitted. By wiring the first power supply line 62 along the wire guide 311, it is possible to reduce stress generated in the bent portion of the first power supply line 60 when the base 4 is fitted to the resin housing 30. . The through hole 310 and the through guide 311 are not limited to the shape shown in FIG. Further, if excessive stress does not occur in the bent portion of the first power supply line 60, the wiring guide 311 may be provided without being provided.

  As described above, in the state in which the lighting circuit 5 c is accommodated in the resin casing 33, the illumination lamp 100 d includes the base material of the circuit board 54 and the shielding rib between the first power supply line 62 and the second power supply line 63. In this arrangement, a shielding plate 308 is interposed. In addition, among the openings on the base 4 side of the resin casing 33, the opening on the first power supply line 62 side is closed by the bottom 309. That is, in the internal space of the resin casing 33, the first power supply line 62 and the second power supply line 63 are in a state of being isolated by the circuit board 4, the shielding rib 308, and the bottom portion 309.

  Then, by interposing a non-conductive shielding plate between the first power supply line 62 and the second power supply line 63, similarly to the illumination lamp 100 of the first embodiment, the first power supply line 62 and the second power supply line. A distance required for safety (space distance and creepage distance of 1.5 mm or more) can be ensured between the terminal 63 and the terminal 63. Further, by closing the opening on the base 4 side of the resin casing 33 with the bottom 309, the contact and approach of the first power supply line 62 and the second power supply line 63 can be completely prevented. For this reason, it is not necessary to apply insulation coating to the first power supply line 62 and the second power supply line 63 with an insulating sleeve or the like, and work relating to insulation coating is not necessary in the assembly process of the illumination lamp 100d, thereby simplifying the assembly process. Manufacturing cost can be reduced. Further, since the shielding rib 308 and the bottom portion 309 are formed integrally with the resin casing 33, there is no need to separately attach parts to the resin casing 33, and these arrangement configurations can be realized at low cost. is there.

  Although FIG. 9 shows the resin casing 33 having the bottom 309 that closes the opening on the first power supply line 62 side, the resin casing or the base 4 that closes only the opening on the second power feeding line 63 side is shown. A resin housing that covers the entire opening on the side may be used, and the same effect can be exhibited. However, when closing the opening on the second power supply line 63 side, it is necessary to form a through hole through which the second power supply line passes at the bottom.

  9 shows a resin casing 33 having a shielding rib 308 provided with a bottom 309. However, a resin casing having no shielding rib 308 (for example, the resin casing shown in FIGS. 1, 6, and 7) is shown. Similarly, a bottom may be provided in the opening on the base 4 side of the body 30). In this case, the shielding plate (for example, the circuit board 50 in FIGS. 1 and 6 and the vertical board 53 in FIG. 7) is arranged so that the end portion on the base 4 side contacts the bottom portion, and the contact portion is bonded with an adhesive or the like. Thus, the shielding plate and the bottom may be integrated, and the same effect as the bottom 309 in FIG. 9 can be obtained.

  In the first to fourth embodiments described above, an example in which a pair of power supply lines (first power supply lines 60 and 62 and second power supply lines 61 and 63) that are not entirely insulated is used as the power supply lines of the illumination lamp. Although shown, a pair of power supply lines, one of which is not covered with insulation, may be used. Alternatively, a part of the feeder line that is not covered with insulation may be used, and in that case, the arrangement may be such that a shielding plate is disposed opposite to the part of the feeder line that is not covered with insulation.

  In the first to fourth embodiments, an example in which one shielding plate is interposed between the first feeding lines 60 and 62 and the second feeding lines 61 and 63 has been described. It is good also as the arrangement configuration which provides a board.

  Further, in the first to fourth embodiments, the example in which the non-conductive base material of the circuit board 50, the vertical board 53, or the circuit board 54 is used as a shielding plate is shown. It is sufficient that at least a portion of the pair of feeders facing the portion not covered with insulation is non-conductive. For example, as a base material of a substrate, a part of the substrate (non-conductive) is used by using a conductive base material that has been subjected to non-conductive treatment only on a part of the pair of power supply lines that is opposite to the part that is not covered with insulation. It is good also considering the site | part which performed the sex treatment as a shielding board.

  Moreover, although the example which used LED as the light source of an illumination lamp was shown in the said Embodiment 1-4, a light source is not limited to LED. For example, any of a laser diode and an organic EL (Electro-Luminescence) may be used as the light source of the illumination lamp.

  Further, in the first embodiment, as shown in FIGS. 1, 2, 4, and 5, the example using the axial type resistor 51 and the fuse 52 has been shown. However, a resistor or fuse other than the axial type, such as a radial type, is used. May be used.

  In addition, the illumination lamps shown in the first to fourth embodiments are combined with a socket that fits into the base of the illumination lamp and a housing that houses one or more illumination lamps to constitute an illumination device. Can do. FIG. 10 is a cross-sectional view illustrating an illumination device including the illumination lamp according to Embodiments 1 to 4.

  As shown in FIG. 10, the illumination device 150 includes an instrument main body 151 that contains the illumination lamp 100 (100a to 100d), a socket 152 to which the base 4 of the illumination lamp 100 is attached, and an illumination lamp provided in the instrument main body 151. And a reflector 153 that reflects the light emitted from 100. The lighting device 150 illustrated in FIG. 10 is a lighting device that is inserted into an opening formed in the ceiling 160 and illuminates the room from the ceiling 160 side. In addition to such a ceiling-mounted illumination device, for example, the illumination lamp shown in Embodiments 1 to 4 is applied to an illumination device installed on a wall or an illumination device placed on a table. Can do.

  DESCRIPTION OF SYMBOLS 1 Light source, 2 Globe 3, 3a, 3b housing | casing, 4 nozzle | cap | die part, 5, 5a-5c lighting circuit, 10 LED (light emitting element), 11 LED board, 30 resin housing, 31 metal housing, 32 resin housing Body, 33 resin casing, 40 clamping part, 41 center electrode, 50 circuit board (shielding board), 51 resistor, 52 fuse, 53 vertical board (shielding board), 54 circuit board (shielding board), 60 first feeder , 61 2nd feeding line, 62 1st feeding line, 63 2nd feeding line, 100, 100a to 100d Illumination lamp, 150 illumination device, 151 fixture body, 152 socket, 307 passage guide, 308 shielding rib (shielding plate) 309 bottom, 310 through-holes, 311 through-guides.

Claims (8)

A light source;
A cylindrical housing in which an opening is formed;
A base fitted to an end of the housing;
A lighting circuit that is housed in the housing from the opening and supplies power to the light source;
First and second power supply lines that are housed in the housing from the opening and that supply commercial power supplied to the lighting circuit via the base in a state where the base and the lighting circuit are connected to each other. ,
A non-conductive shielding plate interposed between the first power supply line and the second power supply line,
The shielding plate is
In a state of being interposed between the first power supply line and the second power supply line, it is housed in the housing from the opening,
A portion of one of the first power supply line and the second power supply line that is not covered with insulation is disposed between one surface of the shielding plate and the inner surface of the housing, and the other power supply line is disposed. An illumination lamp, wherein an electric wire is disposed between the other surface of the shielding plate and an inner surface of the housing.   2. The illumination lamp according to claim 1, wherein the shielding plate is provided over the entire length of at least one of the first power supply line and the second power supply line in the housing. The lighting circuit has a circuit board on which an electronic component is mounted while a wiring pattern is formed,
The first power supply line is connected to the wiring pattern from one side of the circuit board, and the second power supply line is connected to the wiring pattern from the other side of the circuit board,
The illumination lamp according to claim 1, wherein the shielding plate is a part of the circuit board. The lighting circuit has a circuit board on which an electronic component is mounted while a wiring pattern is formed,
The housing has a resin housing that houses the lighting circuit,
The first power supply line is connected to the wiring pattern from one side of the circuit board, and the second power supply line is connected to the wiring pattern from the other side of the circuit board,
3. The illumination lamp according to claim 1, wherein the shielding plate includes the circuit board and shielding ribs extending from an inner surface of the resin casing. The lighting circuit includes a circuit board on which a wiring pattern is formed and an electronic component is mounted, and a vertical board that is fixed on the circuit board and extends in a direction substantially perpendicular to the circuit board,
The illumination lamp according to claim 1, wherein the shielding plate is a part of the vertical substrate. A wire guide for wiring the first power supply line from the inside of the housing to the outside of the housing is provided at the end of the housing on the side where the base is fitted,
The wire guide is provided at an end portion of the housing on the first power supply line side of the shielding plate, and at an end portion that is the longest position from the shielding plate in a direction orthogonal to the shielding plate. The illumination lamp according to any one of claims 1 to 5, wherein: The housing has a bottom portion that closes an opening on a side to which the base is fitted,
The illumination lamp according to claim 1, wherein the bottom portion and the shielding plate are integrally joined.   The illuminating device provided with the illumination lamp as described in any one of Claims 1 thru | or 7.

Images