JPH01183002A - Parts disposition structure for lighting apparatus - Google Patents

Abstract

PURPOSE:To reduce effects of shrinkage and expansion of a printed board in a lighting apparatus in which a lamp is lighted by high frequency waves by means of an inverter by disposing component parts in a predetermined disposition. CONSTITUTION:At a printed board 3 which is fixed at a base 1 at one end by a fixing member and has a lamp holder 7 and a lighting circuit for applying a lighting voltage to a lamp 5 mounted, has a first connecter 82 provided at the fixed end for connecting the terminal of the holder 7. At the other end of the board 3 is provided a second connecter 81 for connecting the terminal of a composite part 6 including a power switch, a socket for a miniature lamp, and a terminal part of a power source integrated with each other, and the contacting surface of the connecter 81 with the terminal is disposed in parallel to a line connecting the connecters 82, 81. Even if shrinkage or expansion occurs in the printed board, the connecter 81 is fixed by a fixing member, and the contact surface of the connecter 82 is in the direction of the shrinkage or expansion, so effects of shrinkage or expansion are not given. A direct force is not applied to the terminals of the connecters 81, 82 as a result, thereby stress is not applied to a solder part of the terminals.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a component arrangement structure of a lighting fixture that lights a lamp at high frequency using an inverter.

[Prior Art] FIG. 14 shows an exploded perspective view of a conventional lighting device, in which a locking support 1 is mounted on the lower surface of a metal disc-shaped base 101.
02, a printed circuit board 104 is placed with an insulating plate 103 in between. Electronic components constituting a lighting circuit 105 for lighting the lamp are mounted on the lower surface of the printed circuit board 104. A U-shaped mounting bracket 106 is fixed to a substantially central portion of the lower surface of the printed circuit board 104 with a tapping screw 119.

A power switch 108 with a pull ring 107 vertically attached to the bottom surface of the mounting bracket 106 and a stand-up socket 109 are connected to screws 110 and 1, respectively.
11. The power switch 108 and the standing socket 109 are connected to the printed circuit board 104 by three lead wires 112, and the lamp socket 113 that supports the lamp is also connected to the printed circuit board 104 by a lead 15114.
connected with. Note that this lamp socket 113 has 2
Since it is for a lamp, two socket parts 115 are formed, and eight lead wires 114 are also used. The printed circuit board 104 sides of both lead wires 112 and 114 are connected by soldering. Further, a lead wire 116 is led out from the ground pattern of the printed circuit board 104, and a ground terminal 117 in the shape of a glasses terminal is attached to the tip of this lead M116.
is provided, and this ground terminal 117 is connected to the metal base 1.
01 with a tapping screw 118 and is grounded. A cover 120 is fixed to the lower surface of the base 101 with tapping screws 126, and the cover 120 has a notch 121 from which the lamp socket 113 projects. Note that the lamp socket 113 is fixed by being sandwiched between the base 101 and the cover 120 via their lips 127. A hole 123 is bored in the center of the cover 120, through which the stand 122 and the pull ring 107 are inserted. Further, on the lower surface of the cover 120, a support spring 124 that pairs with the lamp socket 113 and supports the lamp is attached to the rivet 12.
5.

In such a conventional example, lead wires 112, 114, and 116 connect lamp socket 113. Power switch 108. It was connected to the miniature ball socket 109 and the base 101. When this connection is made into a terminal without lead wires, the printed circuit board 104
It is necessary to consider a method that has less influence on positional displacement and dimensional shrinkage.

[Problem to be Solved by the Invention 1] The present invention has been provided in view of the above-mentioned points, and its purpose is to arrange components with less influence on shrinkage, misalignment, cracking, etc. of printed circuit boards. The present invention provides a component arrangement structure for a lighting fixture.

[Means for Solving the Problems] 1 Effect] The present invention comprises a lamp, a lamp holder that supports the lamp and applies lighting voltage to the lamp, and a printed circuit board on which a lighting circuit for lighting the lamp is mounted. , a lighting device having a composite component that integrates a power switch, a socket for a small bulb, and a power terminal part, wherein a first connector to which a terminal of a lamp holder is connected to an end of a printed circuit board is mounted; On the first connector side, the printed circuit board is fixed to the base by a fixing member, and a second connector to which the terminals of the composite component are connected is mounted at a position on the printed circuit board apart from the first connector, and the terminal of the composite component is connected to the second connector. By making the contact surface between the terminal and the terminal of the second connector parallel to the line connecting both connectors, the first connector part can be fixed to the base when the printed circuit board or board shrinks or expands. By being fixed by the connector, contraction and expansion of the printed circuit board occur in the part of the printed circuit board on the second connector side
In addition, by making the contact surface of the terminal parallel to the line connecting both connectors, direct force is not applied to the terminal of the second connector, and stress is not applied to the solder part of the terminal. That is.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. First, the overall configuration will be explained with reference to FIG. 2, which is an exploded perspective view.

A printed circuit board 3 is fixed to the lower surface of a metal disc-shaped base 1 with an insulating plate 2 interposed therebetween by a locking support 4. Electronic components constituting a lighting circuit for lighting the lamp 5 (FIG. 1) are mounted on the mounting surface of the printed circuit board 3, and this lighting circuit is composed of, for example, a transistor-type inverter circuit. A power switch is installed in a hole 3a drilled approximately in the center of the printed circuit board 3.

A composite component 6 that integrates a standing socket and a power terminal part is arranged, and a hole 3 drilled at the end of the printed circuit board 3 is arranged.
A lamp holder 7 is arranged at b. The composite part 6 is attached to the base 1 with tapping screws 16. The lamp holder 7 has a lamp support fitting 7.
a is attached. Note that the composite component 6 and lamp holder 7 will be described later. A hollow composite component support 8 to which the composite component 6 is attached is interposed between the base 1 and the printed circuit board 3, and a hollow lamp holder support 9 to which the lamp holder 7 is attached is also attached to the base 1 as will be described later.
and the printed circuit board 3.

A power connector 10 is attached to the power terminal portion of the composite component 6 from the upper surface of the base 1 through the hole 1a. A cord stopper 12 is attached to the cord 11 having a power connector 10 at the tip.
is the provision. A cord cover 13 is attached to the upper surface of the base 1 to cover the cord 11, power connector 10, and the like. A cover 14 covering the electronic components of the printed circuit board 3 is attached to the lower surface of the base 1 with tapping screws 15.

The cover 14 has a flat dome shape, and has four parts 14a formed in the center. On the ceiling surface of the four parts 14a of the cover 14, there are a pull ring 17 and a stand 1 that hang down from the composite component 6.
A potbell-shaped hole 141) through which 8 is inserted is bored, and the opening surface of the four parts 14a is closed with a light-transmitting cover 19. A hole 19a is bored in the center of the transparent cover 19, through which a pull string connected to the pull ring 17 is inserted. Further, a cutout L 4 c is a cutout in a part of the cover 14 to allow the lamp holder 7 to escape. Further, a lamp support spring 20 is attached to the lower surface of the cover 14 on the opposite side of the notch 14c with rivets 20a. In addition, the ground screw 21 is on the top surface of the base 1.
is screwed on.

Next, the composite component 6 will be explained based on FIGS. 3 to 5. This composite component 6 is composed of a body 22 made of an insulating material to which each member is mounted, a cover 23 made of an insulating material as well, and a power terminal section 24 provided on the top side and a power switch provided inside. 25 and a socket 26 for the miniature ball 18 are integrally formed. Four terminal plates 27 to 30 are arranged on the outer surface of the body 22. The two inner terminal boards are switch contact terminal boards 27.28
There are two power terminal plates and a ground terminal plate 30 on the outside. The outer surface of the body 22 has kashimeri ribs 31a to 31d.
are provided protrudingly, and the caulking holes 32a to 32d of each of the terminal plates 27 to 30 are fitted into the caulking ribs 31a to 31d and caulked, thereby fixing each of the terminal plates 27 to 30 to the body 22. Terminals 27a to 30a are formed at the ends of each of the terminal plates 27 to 30 to be in contact with terminals of a connector to be described later. They are arranged in parallel. Note that the terminal plates 27 and 28 are surrounded by an insulating wall 22a for insulation. Attachment holes 22b for fixing to the base 1 are bored at both ends of the body 22, and an opening hole 22c for caulking the power terminal board 29 and a circuit board to be described later is provided. The power terminal board 29 has a caulking hole 2 for caulking with the electric circuit board.
9b is perforated, and the ground terminal plate 30 has a body 22.
A hole 301) through which the tapping screw 16 is inserted is bored corresponding to the mounting hole 221]. Tapping screw 16
By inserting the terminal plate 30 through this hole 301) and screwing it onto the base 1, the ground terminal plate 30 is grounded to the base 1.

Three electrical circuit boards 33 to 35 are arranged inside the body 22, each electrical circuit board 33 to 35 is provided with caulking holes 37a to 37c, and caulking ribs 36a corresponding to the caulking holes 37a to 37c are provided. -36c are provided protruding inside the body 22. A cylindrical power terminal pin 3 into which the pins of the power connector 10 are inserted and connected is located at the end of the circuit board 33, 34.
3a and 34a are integrally formed. Electric circuit board 33!7
) The other end has a caulking hole 3.3 for caulking with the mandrel 41.
b is formed. At the other end of the circuit board 34, an elastic metal fitting 34b is integrally formed and is in contact with the cathode side of the stand 18. In this receiver, the metal fitting 341] is the socket 2
6 will be disposed axially on the inner surface of. Electric circuit board 3
A contact 35a constituting a switch on the anode side of the upright mount 18 is formed at one end of the 5, and an elastic contact piece 35b that makes contact with the anode of the upright 18 is integrally formed at the other end. . Power terminal bins 33'a, 34 of electrical circuit board 33, 34
n is positioned in the recess 24'a of the power terminal section 24.

A switch stepped portion 39 constituting the power switch 25 is formed in a circumferential shape in a portion surrounded by an insulating wall 38 and the like on the inside of the body 22 . A contact 40 is located at this switch step portion 39.
a, 40b, and 40c are arranged and fixed to the switch contact terminal plates 27 and 28 on the outside of the body 22 by caulking.

One end 41a side of the mandrel 41 is connected to the caulking hole 33I of the electrical circuit board 33.
), and the tip is inserted into the caulking hole 42 of the body 22 and caulked on the outside of the body 22. The mandrel 41 includes a conductive spring 43 that electrically connects the mandrel 41 and the step wheel 44, and a step wheel 44 that rotates and switches the contact points.
, a handle 45 for operation, a handle metal fitting 48 that moves the tray wheel 44 step by step by being crimped by the handle 45, and a locking portion 45 of the handle 45.
A return spring 46 that returns the handle 45 to its original position after pulling the pull ring 17 hooked on a is inserted, and finally a stopper 47 to prevent the above-mentioned parts from coming off is inserted into the other end 411) of the mandrel 41. Attach the hole 47 of the stopper fitting 47.
In addition to the mandrel 41, 1i 4111 is to be caulked to a.

The body 22 and the cover 23 are fixed by driving rivets 49. A threaded portion 50 of a socket 26 for mounting the stand 18 is formed on the body 22 and the cover 23, and a drawer portion 51 for pulling out the pull ring 17 is formed. As shown in FIG. 4, inside the cover 23,
A rib 52 that serves as a stopper for the handle 45 when the pull ring 17 is pulled, a convex rib 53 that presses the caulked portions of the circuit boards 33, 34, and 35, and a stopper 54 for the contact piece 341) are formed. In addition, the power terminal section 24 includes a power connector 1.
A stepped portion 55 is formed which is pressed and stopped.

Next, the lamp holder will be explained with reference to FIGS. 6 and 7. Since the lighting fixture of the present invention is of a two-lamp type, the socket portion 64 of the lamp holder 7 is formed as follows: 2=11-. The lamp holder 7 includes a body 61 made of synthetic resin and covers 62 and 63 fitted on both sides of the body 61 to form a casing. Four insertion holes 65 into which lamp bottles are inserted are bored in the flat part of the socket part 64, and arc-shaped lamp support parts 66 are integrally formed on both sides, and the end face of the shorter lamp support part 66 is a fixing rib 66 to which the lamp support fitting 7a is attached.
A is integrally protruded, and storage portions 69 are formed on both sides of the body 61 via insulating ribs 68 for storing and arranging electric wires 67. Lamp bottle contacts 70 are connected to one end of the electric circuit @ 67 by caulking or spot welding, and the other end is connected to a terminal 71 to be connected to the electronic circuit of the printed circuit board 3 in the same manner as described above. . A pair of ribs 72.72 are formed on the body 61, and the insertion piece 71a of the terminal 71 is inserted between the ribs 72.72 to fix the terminal 71. Printed circuit board 3
There is a bent part 71 at the tip of the terminal 71 that connects to the connector.
1) is formed. Incidentally, this bent portion 711] does not have to make the contact more stable.

A slit 73 from which the terminal 71 protrudes is formed at the end of the cover 62, 63, and a pressing piece 74 for pressing the terminal 71 is integrally formed next to this slit 73.

As shown in FIG. 6, the terminals 71 are made to protrude from the slits 73 of the covers 62, 63, thereby making contact with the terminal side of the connector of the printed circuit board 3. body 6
A step 75 for positioning the cover 62.63 is formed on the inside of the peripheral wall 1, and a rib 76 pressed by the cover 14 and a flange 77 for protecting the terminal 71 are integrally formed on the outer surface of the cover 62.63. It is.

Furthermore, a cover 62.6 is provided on the end surface of the insulating rib of the body 61.
Fixing rib 7 for fixing 3 (for example, caulking fixation)
8 are provided in a protruding manner, and holes 79 corresponding to these fixing ribs 78 are bored in the cover 62, 63. body 61
Tongue piece 80 inserted into lamp holder support 9 from the bottom surface of
is integrally protruded, and on the end surface of the tongue piece 80 there is a rib 80a for inserting into the hole of the base 1 for positioning.
are integrally formed.

FIG. 8 shows the shape of the printed circuit board 3, in which a hole 3a, which serves as an escape hole for the composite component 6 and into which the composite component support 8 is mounted, is bored in the horizontal direction at the center O of the lighting fixture.

Also, at the end of the printed circuit board 3, there is a hole 31 for escaping the lamp holder 7 and into which the lamp holder support 9 is attached.
is perforated long in the vertical direction. These two holes 3a,
3. The holes are drilled so that the direction of the technique (b) is orthogonal (approximately T-shaped).

In this way, since the lamp holder 7 and the composite component 6 are disposed perpendicularly, the hole 3a of the printed circuit board 3.

The corners of 3b are spaced apart from each other, making it difficult for cracks to occur. Connectors 82 that come into contact with the terminals 71 of the lamp holder 7 are arranged on both sides of the hole 3b, and the hole 3a, which is formed in a generally oval shape, is arranged on both sides of the hole 3b.
A connector 81 that contacts each of the terminal plates 27 to 30 of the composite component 6 is mounted on the upper side, that is, on the opposite side from the connector 82. Therefore, a space can be secured between the composite component 6 and the lamp holder 7, making it easier to arrange the electronic components. FIG. 1 is a plan view showing the arrangement of each component.

FIG. 9 shows a perspective view of the connectors 81 and 82. Four storage recesses 83 are formed in the longitudinal direction of the connector 81 made of an insulating material, and the connector 81 is placed in the storage recesses 83. Each blade receiving spring 84 is provided with an integrated connecting piece 84a extending vertically from the lower surface. The connecting piece 84a of the blade receiving spring 84 is connected to the circuit pattern of the printed circuit board 3 by soldering or the like. There are grooves 83a on both sides of the storage recess 83.
are notches. The groove 83a of the connector 81 is the first
As shown in Figure 0, this is a relief for inserting the terminal plates 27 to 30 of the composite component 6 and the terminal 71 of the lamp holder 7, and also serves as a relief for the terminal 71 when the printed circuit board 3 contracts as described later. It has become. In addition, the connector 81
Elastic tongue pieces 85 for fixing to the printed circuit board 3 are integrally provided to protrude from the lower surfaces of both ends. Here, the first
Although FIG. 0 shows the connection state between the connector 82 and the lamp holder 7, the connection between the other connector 81 and the terminal plates 27 to 30 of the composite component 6 is also the same.

The contact surface between the blade receiving spring 84 of the connector 82 and the terminal 71 of the lamp holder 7 and the contact surface between the blade receiving spring 84 of the connector 81 and the terminal plates 27 to 30 of the composite component are perpendicular to each other. Therefore, since the part of the printed circuit board 3 on the connector 82 side is fixed to the base 1 as described later,
When the printed circuit board 3 contracts and expands in the direction that connects both connectors 81 and 82, the direction is perpendicular to the contact surface between the blade receiving spring 84 of the connector 82 and the terminal 71 of the lamp holder 7. This means that the printed circuit board'3
Even if B contracts and B tensions, the blade retaining spring 8 of the other connector 81
4 and the contact surface of the terminal plates 27 to 30 of the composite component 6, the groove 83a of the connector 81 becomes a relief for the terminal plates 27 to 30 of the composite component 6, and the blade receiving spring 84 of the connector 81 No force is applied, and therefore no force is applied to the soldering parts of the printed circuit board 3. Incidentally, since the lamp holder 7 is fixed to the printed circuit board 3 by the lamp holder support 9, there is no dimensional change.

FIG. 11 shows a perspective view of the lamp holder support 9. The lamp holder 7 is inserted into the inside of the lamp holder support 9, and a collar 86 for supporting the printed circuit board 3 is provided on the outer surface. Further, two claws 87 are integrally provided at the lower part of the lamp holder support 9 for fixing the lamp holder support 9 to the base 1.
Two lips 88 are provided for positioning. As shown in Figure 12, which is shown upside down from the actual installation state,
End 9a of lamp holder support 9 opposite to claw 87
enters the hole 3b of the printed circuit board 3, the lamp holder support 9 is positioned on the printed circuit board 3, and the collar 86
is in contact with one surface of the printed circuit board 3, so that the lamp holder support 9 is supported by the printed circuit board 3.

The size of the hole 3b of the printed circuit board 3 through which the lamp holder support 9 is inserted is slightly larger than the outer circumference of the lamp holder support 9. A portion of the tongue piece 80 of the lamp holder 7 shown in FIG. 6 having a dimension S2 is inserted into the lamp holder support 9.

FIG. 13 shows a perspective view of the composite component support 8, which is approximately 1. It is formed into a mold, and has two ribs 89 protruding from the negative side. Furthermore, a collar 90 for supporting the printed circuit board 3 is integrally formed around one side of the composite component support body 8 . Furthermore, convex ribs 91 having guide holes 91a for inserting a jig for positioning the composite component support 8 during assembly are provided at both ends of the composite component support 8, and on the other side, for fixing to the base 1. The claw 9 has an elasticity of
2 are integrally provided. In addition, as shown in FIG. 8, notches 93 are formed in the printed circuit board 3 in correspondence with the ribs 89 and communicate with the holes 3a. By fitting them together, the composite component support 8 is stabilized, and stress is not applied to the soldering parts. This composite component support 8
A portion of the composite component 60 having a dimension S1 shown in FIG. 3 is inserted therein.

[Effects of the Invention 1] As described above, the present invention comprises a lamp, a lamp holder that supports the lamp and applies lighting voltage to the lamp, a printed circuit board on which a lighting circuit for lighting the lamp is mounted, a power switch, A lighting device having a composite component that integrates a vertical line socket and a power terminal part, the first lamp holder terminal being connected to the end of the printed circuit board.
a second connector, in which the printed circuit board is fixed to the base by a fixing member on the first connector side, and the terminal of the composite component is connected to a position on the printed circuit board apart from the first connector. is mounted, and the contact surface between the terminal of the composite component and the terminal of the second connector is parallel to the line connecting both connectors, so if the printed circuit board shrinks or expands, the first The connector part is fixed to the base by a fixing member, so that contraction and expansion of the printed circuit board occurs in the part of the printed circuit board on the second connector side, and the contact surface of the terminal is aligned with the line connecting both connectors. By making them parallel, it is possible to prevent direct force from being applied to the terminals of the second connector and to prevent stress from being applied to the soldered parts of the terminals. This has the effect of providing a lighting fixture with a component arrangement that is less susceptible to cracking.

Further, in claim 2, a hollow lamp holder support body that guides the lamp holder when it is mounted and a hollow composite component support body that guides the composite component when it is mounted are arranged in the mounting hole of the printed circuit board. However, by positioning the printed circuit board back and forth and left and right using the lamp holder support, and by restoring the printed circuit board from side to side using the composite component support, no stress is applied to the soldering of the printed circuit board.

In claim 3, the lamp holder and the composite part are T.
By arranging them in the shape of a letter, the corners of the mounting holes on the printed circuit board are spaced apart, making it difficult for cracks to occur.

Furthermore, in claim 4, by providing the terminal of the composite component on the opposite side of the lamp holder, a space can be secured between the lamp holder and the composite component, making it easy to arrange the electronic component.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the entire lighting fixture, Fig. 3 is a perspective view of the composite part of the above, and Fig. 4 is a perspective view of the composite part of the above. , FIG. 5 is a perspective view of the same composite part, FIG. 6 is a perspective view of the lamp holder, FIG. 7 is an exploded perspective view of the lamp holder, and FIG. 8 is a plan view of the printed circuit board, Fig. 9 is a perspective view of the same connector as above, Fig. 10 is a cutaway perspective view of main parts showing the connection state between the above connector and the lamp holder, Fig. 11 is a perspective view of the lamp holder support as above, Fig. 12 13 is a sectional view showing the positioning of the lamp holder support body and the printed circuit board, FIG. 13 is a perspective view of the composite component support body same as the above, and FIG. 14 is an exploded perspective view of the conventional example. 1 is a base, 3 is a printed circuit board, 5 is a lamp, 6 is a composite component, 7 is a lamp holder, 8 is a composite component supporter, 9 is a lamp holder supporter, 71 is a terminal, 81 is a second connector, 82 is a This is the first connector. Agent Patent Attorney Ishi 1) Long Shichimo. , 2°% j , 15 Figure 3 Figure 4-. θ To 2 Fig. 6 Fig. 7゜73...1 7, Stomach L- Fig. 8 Fig. 9 Fig. 10 Fig. 11

Claims (4)

[Claims] (1) A lamp, a lamp holder that supports the lamp and applies lighting voltage to the lamp, a printed circuit board with a lighting circuit that lights the lamp, a power switch, a miniature bulb socket, and a power terminal part are integrated into one unit. A lighting device having a composite component that is a composite component, in which a first connector to which a terminal of a lamp holder is connected is mounted on an end of a printed circuit board, and a fixing member is used to attach the printed circuit board to the base on the first connector side. A second connector to which the terminals of the composite component are connected is mounted at a position on the printed circuit board separate from the first connector, and the contact surface between the terminal of the composite component and the terminal of the second connector is A component arrangement structure of a lighting fixture that is parallel to the line connecting both connectors. (2) A hollow lamp holder support body that guides the lamp holder when it is installed and a hollow composite component support body that guides the composite component when it is installed are arranged in the hole of the printed circuit board, and the lamp holder support 2. The component arrangement structure of a lighting fixture according to claim 1, wherein the printed circuit board is positioned in the front and rear and left and right directions, and the printed circuit board is rested on the left and right sides by the composite component support. (3) The component arrangement structure of the lighting fixture according to item 1, in which the lamp holder and the composite component are arranged in a T-shape. (4) The component arrangement structure of the lighting fixture according to item 1, wherein the terminal of the composite component is provided on the opposite side of the lamp holder.