JP2015135757A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of reducing assembly cost and connecting two pieces of substrates.SOLUTION: A first circuit board 31 and a second circuit board 33 are arranged in parallel so that a first circuit pattern 32 and a second circuit pattern 34 face sides opposite to each other, and also, at least at one part overlap along thickness directions with each other. In a connection member 40A, conductors 421, 431 are provided for penetrating the first circuit board 31 and the second circuit board 33. Thus, the conductors 421, 431 penetrate the first circuit board 31 and the second circuit board 33 at a position in which the first circuit board 31 and the second circuit board 33 overlap with each other. Also, as the first circuit pattern 32 and the second circuit pattern 34 are arranged in parallel so as to face the sides opposite to each other, the conductors 421, 431 penetrating the first circuit board 31 and the second circuit board 33 can be connected to the first circuit pattern 32 and the second circuit pattern 34 easily. Thereby, the substrates can be electrically connected without using a harness, and assembly cost can be reduced.

Description

  The present invention relates to a lighting fixture having two types of circuit boards that are electrically connected to each other.

2. Description of the Related Art Conventionally, there is known a lighting fixture in which two types of circuit boards that are electrically connected to each other are accommodated in a fixture body (see, for example, Patent Document 1).
As shown in FIGS. 11A and 11B, the lighting fixture 100 described in Patent Document 1 includes a case 101 that covers the upper portion of the lighting fixture 100, and a reflector 102 is provided below the case 101. Have. A discharge lamp 103 as a light source is detachably provided below the reflecting plate 102. The reflector 102 reflects light emitted from the discharge lamp 103 downward.

Between the case 101 and the reflection plate 102, there are two types of substrates, a main substrate 104 and another substrate 105.
The main board 104 is mounted with a rectifier circuit, a discharge lamp lighting circuit, a microcomputer, and the like. The separate substrate 105 has the light emitting diode element 107 mounted on the lower surface.
The reflector 102 is provided with an opening 106. The opening 106 is located directly below the light emitting diode element 107 mounted on the separate substrate 105. Accordingly, light emitted from the light emitting diode element 107 is irradiated downward through the opening 106.

Japanese Patent Laying-Open No. 2008-243444 (FIG. 4)

  However, in the lighting fixture described in Patent Document 1 as described above, there is a problem in that the assembly cost increases because two types of substrates, a main substrate and another substrate, are connected by a harness.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus capable of connecting two kinds of substrates at a reduced assembly cost.

  The lighting fixture of the present invention includes a fixture main body, a first circuit board housed in the fixture main body and having a power supply unit and a first circuit pattern, and a second circuit board housed in the fixture main body and having a second circuit pattern. And a connection member for electrically connecting the first circuit board and the second circuit board, wherein the first circuit board and the second circuit board are the first circuit pattern and the second circuit pattern. Are arranged in parallel so that they face each other and at least partially overlap each other in the thickness direction of each other, and the connecting member includes the first circuit board and the second circuit board. It has a conductor that penetrates.

  Moreover, the lighting fixture of this invention has a leg part which is provided in one of the said 1st circuit board and the said 2nd circuit board, and contacts the other, The connecting member is disposed at one end portion in the overlapping region, and the leg portion is disposed at the other end portion in the overlapping region.

  Moreover, in the lighting fixture of this invention, the said leg part has an arrowhead part inserted in the hole provided in the other of the said 1st circuit board and the said 2nd circuit board.

  Moreover, in the lighting fixture of this invention, the said connection member is a connector which can be inserted or removed along the thickness direction of a said 1st circuit board and a said 2nd circuit board.

  In the lighting fixture of the present invention, the connector has a white surface color.

  Moreover, in the lighting fixture of this invention, the color of the back surface which the said power supply part faces the said 2nd circuit board in a said 1st circuit board is a white type | system | group.

  Further, in the lighting fixture of the present invention, the nightlight LED and the emergency light LED are mounted on the second circuit pattern.

  In the present invention, the conductor of the connecting member penetrates the first circuit board and the second circuit board at a position where the first circuit board and the second circuit board overlap. In addition, since the first circuit pattern and the second circuit pattern are arranged in parallel so as to face opposite sides, the conductors penetrating the first circuit board and the second circuit board can be easily connected to the first circuit pattern and the second circuit pattern. Two circuit patterns can be connected. Accordingly, it is possible to provide a lighting apparatus that can be electrically connected without using a harness and can reduce the assembly cost.

The perspective view of the state which removed the glove of the lighting fixture of 1st Embodiment which concerns on this invention The side view of the lighting fixture of 1st Embodiment which concerns on this invention The bottom view which removed the glove of the lighting fixture of 1st Embodiment which concerns on this invention Plan view of the bottom surface of the power supply board Plan view of the auxiliary light source board as seen from below Circuit diagram of first circuit pattern and second circuit pattern connected by connector Side view showing a state where the power supply board and the auxiliary light source board are connected by a connector The circuit diagram of the 1st circuit pattern and 2nd circuit pattern which were connected with the connector in the lighting fixture of 2nd Embodiment which concerns on this invention The side view which shows the state which connected the power supply board and the auxiliary light source board | substrate with the connector in the lighting fixture of 2nd Embodiment which concerns on this invention. (A)-(C) are explanatory drawings which show the connection process of the power supply board | substrate and auxiliary light source board | substrate in the lighting fixture of 3rd Embodiment which concerns on this invention. (A) is sectional drawing which cut | disconnected the conventional lighting fixture in the center position, (B) is a bottom view.

(First embodiment)
Hereinafter, the LED lighting fixture of 1st Embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1, the luminaire 10A of the first embodiment can be attached to, for example, a ceiling 11 and used to illuminate a room or the like.
In the following description, the ceiling 11 side will be described as “upper” and the floor (not shown) side as “lower” when attached to the ceiling 11.

  The lighting fixture 10 </ b> A has a fixture main body 20 attached to the ceiling 11 and the like, a ring-shaped frame 50 provided along the outer periphery of the fixture main body 20, and a translucent attached detachably to the lower side of the fixture main body 20. The glove 60 is provided. Therefore, the frame 50 is located outside the globe 60.

As shown in FIGS. 1 and 2, the instrument main body 20 is formed in a circular shape from a flat plate of a metal material, and is attached to a hooking sealing body (not shown) attached to the ceiling 11 at a substantially central portion. A circular mounting hole 21 is provided.
A plurality of elastic members 27 such as sponge and rubber are attached to the upper surface of the instrument body 20, and when the instrument body 20 is attached to the ceiling 11, it is elastically deformed so that the instrument body 20 does not wobble. Yes.

As shown in FIGS. 1 and 3, a main light source portion 22 is provided on the lower surface 201 of the instrument body 20 near the outer periphery. In the main light source section 22, four fan-shaped main light source substrates 23 each having a circumference divided into four are arranged along the circumferential direction, and are arranged in a circumferential shape as a whole.
A plurality of main light source LEDs 24 are mounted along the circumferential direction of the main light source substrate 23 on the mounting surface 231 which is the lower surface of each main light source substrate 23.
Further, main light source connectors 25 are respectively attached to both ends of each main light source substrate 23 in the longitudinal direction, and electrically connect adjacent main light source substrates 23 to each other.

A remote control light receiving unit 26 and an auxiliary light source unit 28 are provided between the mounting hole 21 and the main light source unit 22 on the lower surface 201 of the instrument body 20.
A plurality (six in this case) of locking metal fittings 29 for locking the globe 60 are provided at equal intervals on the outer peripheral portion of the lower surface 201 of the instrument body 20.
On the other hand, a plurality of locking projections 61 are provided on the inner peripheral end surface of the light-transmitting globe 60 so as to protrude inward, and by rotating the globe 60 with respect to the device body 20, the device body 20. It attaches to the latching metal fitting 29 so that attachment or detachment is possible.

As shown in FIGS. 2 and 3, on the upper side of the main light source substrate 23, a power supply substrate (first circuit) having the power supply unit 30 on the lower surface 311 and the first circuit pattern 32 (see FIG. 6) on the upper surface 312. Substrate) 31.
As shown in FIGS. 2 and 4, an auxiliary light source substrate (second circuit substrate) 33 is attached to the lower surface 311 of the power supply substrate 31.
As shown in FIG. 5, the auxiliary light source substrate 33 has a second circuit pattern 34 on the lower surface 331 (see FIG. 6). Two night light LEDs 35 and one emergency light LED 36 are mounted on the second circuit pattern 34. Accordingly, the two night light LEDs 35 and the one emergency light LED 36 are mounted downward and irradiate light downward.

As described above, the first circuit pattern 32 is provided on the upper surface 312 of the power supply substrate 31, and the second circuit pattern 34 is provided on the lower surface 331 of the auxiliary light source substrate 33.
That is, the power supply substrate 31 and the auxiliary light source substrate 33 are arranged in parallel so that the first circuit pattern 32 and the second circuit pattern 34 face opposite sides.
Further, the power supply substrate 31 and the auxiliary light source substrate 33 are arranged so that at least a part (here, the entire surface of the auxiliary light source substrate 33) overlaps along the thickness direction of each other.

As shown in FIGS. 6 and 7, a connection member 40 </ b> A that electrically connects the power supply substrate 31 and the auxiliary light source substrate 33 is provided between the power supply substrate 31 and the auxiliary light source substrate 33.
As shown in FIG. 7, the connection member 40A has a connector 41A at one end and a leg 44 at the other end.
The connector 41 </ b> A includes a power supply side connector 42 connected to the first circuit pattern 32 of the power supply substrate 31 and an auxiliary light source side connector 43 connected to the second circuit pattern 34 of the auxiliary light source substrate 33.
The power source side connector 42 and the auxiliary light source side connector 43 have a white surface color. The color of the lower surface (back surface) 311 facing the auxiliary light source substrate 33 in the power supply substrate 31 is also white.

The power supply side connector 42 has first pins (conductors) 421 that penetrate the power supply board 31, and the first pins 421 are soldered (solder 422) to the first circuit pattern 32 of the power supply board 31.
The auxiliary light source side connector 43 has a second pin (conductor) 431 that penetrates the auxiliary light source substrate 33, and the second pin 431 is soldered to the second circuit pattern 34 of the auxiliary light source substrate 33 (solder 432). Is done.
Four first pins 421 and four second pins 431 are provided in the direction perpendicular to the paper surface in FIG. 7 (see FIG. 6).

Accordingly, when the auxiliary light source side connector 43 is inserted and connected to the power source side connector 42, the first pin 421 and the second pin 431 are electrically connected, and the first circuit pattern 32 of the power supply substrate 31 and the first pin of the auxiliary light source substrate 33 are connected. The two circuit patterns 34 are electrically connected.
In addition, it is also possible to remove the coupled power source side connector 42 and auxiliary light source side connector 43.

One end (lower end) of the leg portion 44 is fixed to the upper surface 332 of the auxiliary light source substrate 33, and an arrowhead portion 441 is provided at the other end (upper end).
The arrowhead part 441 passes through the hole 313 provided in the power supply substrate 31 and expands on the upper surface 312 of the power supply substrate 31 so that it does not fall off from the power supply substrate 31.
It is also possible to fix the upper end of the leg portion 44 to the lower surface of the power supply substrate 31 and provide an arrowhead 441 at the lower end of the leg portion 44 so as to penetrate the auxiliary light source substrate 33 and lock it.

  Further, the remote control light receiving unit 26 may be provided in the vicinity of the auxiliary light source substrate 33. In this case, the distance H1 between the lower surface 311 of the power supply substrate 31 and the upper surface 332 of the auxiliary light source substrate 33, that is, the height of the connector 41A and the leg portion 44 is preferably 18 mm to 20 mm. This is because if H1 is 20 mm or more, the remote control light receiving unit 26 may become a shadow of the auxiliary light source substrate 33.

Next, the effect of 10 A of lighting fixtures is demonstrated.
A power supply board 31 housed in the instrument body 20 and having the power supply unit 30 and the first circuit pattern 32 and an auxiliary light source board 33 housed in the instrument body 20 and having the second circuit pattern 34 are connected via the connecting member 40A. Connect electrically.
At this time, the power supply substrate 31 and the auxiliary light source substrate 33 are arranged in parallel so that the first circuit pattern 32 and the second circuit pattern 34 face opposite to each other, and at least a part thereof is along the thickness direction of each other. Arrange them so that they overlap.

The connection member 40 </ b> A is provided with a first pin 421 and a second pin 431 that penetrate the power supply substrate 31 and the auxiliary light source substrate 33.
For this reason, the first pin 421 and the second pin 431 of the connection member 40A penetrate the power supply substrate 31 and the auxiliary light source substrate 33 in the region where the power supply substrate 31 and the auxiliary light source substrate 33 overlap.

Further, since the first circuit pattern 32 and the second circuit pattern 34 are arranged in parallel so as to face opposite sides, the first pin 421 and the second pin 431 penetrating the power supply substrate 31 and the auxiliary light source substrate 33 are arranged. The first circuit pattern 32 and the second circuit pattern 34 can be easily connected.
Thereby, it can electrically connect without using a harness and can aim at reduction of assembly cost.

Further, the connection member 40A is disposed at one end portion in the overlapping region of the power supply substrate 31 and the auxiliary light source substrate 33, and provided on one of the power supply substrate 31 and the auxiliary light source substrate 33 at the other end portion in the overlapping region. The leg portion 44 that is in contact with the other is disposed.
For this reason, the power supply board 31 and the auxiliary light source board 33 can be connected to each other by one connecting member 40A, and the power supply board 31 and the auxiliary light source board 33 can be held in parallel with each other, thereby reducing the cost. be able to.
Further, since there is one connecting member 40A, there is a margin in the mounting position of the leg portion 44 by providing a margin in the hole 313, so that stress caused by poor accuracy of the connecting position is unlikely to occur.

Further, the leg portion 44 has an arrowhead portion 441 that is inserted into a hole portion 313 provided on the other of the power supply substrate 31 and the auxiliary light source substrate 33.
For this reason, it is possible to prevent the leg portion 44 from falling off and fix the leg portion 44 reliably, and to prevent the power supply substrate 31 and the auxiliary light source substrate 33 from being displaced.

  Since the connector 41A that can be inserted and removed along the thickness direction of the power supply substrate 31 and the auxiliary light source substrate 33 is used as the connecting member 40A, it can be easily interposed between the power supply substrate 31 and the auxiliary light source substrate 33. It is also possible to remove the auxiliary light source substrate 33 from the power supply substrate 31.

  In addition, since the connector 41A has a white surface color, when the remote control light receiving unit 26 is nearby, even if the signal light emitted from the remote control transmitter hits the surface of the connector 41A, it can be reflected and received. Does not interfere with operation.

  The color of the lower surface 311 facing the auxiliary light source substrate 33 in the power supply substrate 31 is white. For this reason, when the remote control light-receiving unit 26 is nearby, even if the signal light emitted from the remote control transmitter hits the lower surface 311 of the power supply substrate 31, it can be reflected and received, so that it does not interfere with the operation.

  Further, the night light LED 35 and the emergency light LED 36 are mounted on the second circuit pattern 34 of the auxiliary light source substrate 33.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment is demonstrated.
In addition, the same code | symbol is attached | subjected to the site | part which is common in 10 A of lighting fixtures of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.
As shown in FIG. 8, in the lighting fixture 10 </ b> B of the second embodiment, a connection member 40 </ b> B that electrically connects the power supply substrate 31 and the auxiliary light source substrate 33 is provided between the power supply substrate 31 and the auxiliary light source substrate 33. It has been.

As shown in FIG. 9, the connection member 40 </ b> B has connectors 41 </ b> B at both ends of the auxiliary light source substrate 33.
In each connector 41B, two first pins 421 of the power supply side connector 42 and two second pins 431 of the auxiliary light source side connector 43 are provided in the direction perpendicular to the paper surface in FIG. 9 (see FIG. 8).
Therefore, the two connectors 41B have four first pins 421 and four second pins 431.

  Even if comprised in this way, like the lighting fixture 10A of 1st Embodiment mentioned above, it can electrically connect without using a harness and can aim at reduction of an assembly cost.

(Third embodiment)
Next, the lighting fixture of 3rd Embodiment is demonstrated.
In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10A of 1st Embodiment mentioned above, and the lighting fixture 10B of 2nd Embodiment, and the overlapping description is abbreviate | omitted.
As shown in FIGS. 10A to 10C, in the lighting fixture 10 </ b> C of the third embodiment, the power supply substrate 31 and the auxiliary light source substrate 33 are electrically connected between the power supply substrate 31 and the auxiliary light source substrate 33. A connecting member 40C is provided for connection.

The connecting member 40C is a pin header 45.
As shown in FIG. 10A, for connection between the power supply substrate 31 and the auxiliary light source substrate 33, first, the pin header 45 is disposed between the power supply substrate 31 and the auxiliary light source substrate 33.
The night light LED 35 and the emergency light LED 36 are mounted on the lower surface 331 of the auxiliary light source substrate 33.
As shown in FIG. 10B, the night light LED 35 and the emergency light LED 36 are masked with a cover, and the pin 451 of the pin header 45 is inserted into the hole provided in the second circuit pattern 34 of the auxiliary light source substrate 33. .
Note that cream solder is applied in advance to the positions where the pins 451 of the second circuit pattern 34 are soldered.

Next, as shown in FIG. 10C, the pin 452 of the pin header 45 is inserted into the hole provided in the first circuit pattern 32 of the power supply substrate 31.
Note that cream solder is applied in advance to the positions where the pins 452 of the first circuit pattern 32 are soldered.
Then, heat is applied to the first circuit pattern 32 and the second circuit pattern 34 to melt the solder, and soldering is performed by reflow.
When the first circuit pattern 32 and the second circuit pattern 34 are not reflowed at the same time, the first circuit pattern 32 is applied to the surface layer of the solder melted in the solder tank after the second circuit pattern 34 is first reflow soldered. Flow soldering may be performed by immersing the pattern surface on the side.

Even if comprised in this way, like the lighting fixture 10A of 1st Embodiment mentioned above and the lighting fixture 10B of 2nd Embodiment, it can electrically connect without using a harness and aims at reduction of an assembly cost. it can.
Furthermore, according to the lighting fixture 10C of 3rd Embodiment, since it can connect by reflow soldering, an assembly operation becomes easy.

  The lighting fixture of the present invention is not limited to the above-described embodiments, and appropriate modifications and improvements can be made.

10A, 10B, 10C Lighting fixture 20 Appliance main body 30 Power supply unit 31 Power supply board (first circuit board)
313 Hole 32 First Circuit Pattern 33 Auxiliary Light Source Board (Second Circuit Board)
34 Second circuit pattern 35 Nightlight LED
36 Emergency light LED
40A, 40B, 40C Connection member 41A, 41B Connector 421 First pin (conductor)
431 Second pin (conductor)
44 Leg 441 Arrowhead

Claims (7)

An instrument body;
A first circuit board housed in the instrument body and having a power supply and a first circuit pattern;
A second circuit board housed in the instrument body and having a second circuit pattern;
A connection member for electrically connecting the first circuit board and the second circuit board;
The first circuit board and the second circuit board are arranged in parallel so that the first circuit pattern and the second circuit pattern face opposite to each other, and at least a part thereof is along the thickness direction of each other Placed in duplicate,
The connecting member is a luminaire having a conductor penetrating the first circuit board and the second circuit board. The lighting fixture according to claim 1,
A leg portion provided on one of the first circuit board and the second circuit board and in contact with the other;
The lighting apparatus in which the connecting member is disposed at one end portion in an overlapping region of the first circuit board and the second circuit substrate, and the leg portion is disposed at the other end portion in the overlapping region. The lighting fixture according to claim 2,
The said leg part is a lighting fixture which has an arrowhead part inserted in the hole provided in the other of the said 1st circuit board and the said 2nd circuit board. In the lighting fixture of any one of Claim 1 to Claim 3,
The lighting apparatus is a connector that is a connector that can be inserted and removed along a thickness direction of the first circuit board and the second circuit board. The lighting fixture according to claim 4,
The connector is a lighting fixture whose surface color is white. In the lighting fixture of any one of Claim 1 to Claim 5,
The said power supply part is a lighting fixture whose color of the back surface which faces the said 2nd circuit board in a said 1st circuit board is white type | system | group. In the LED lighting fixture of any one of Claim 1 to Claim 6,
The lighting fixture by which nightlight LED and emergency light LED are mounted in the said 2nd circuit pattern.

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