JP3332986B2 - Fluorescent lamp socket device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp socket device, and more particularly to a circuit board for a lighting circuit connected to a lamp socket for mounting a fluorescent lamp.

[0002]

2. Description of the Related Art Conventionally, an instrument for mounting a fluorescent lamp of this type includes a lamp socket provided with a terminal body connected to a base terminal pin of the lamp and a lighting circuit board connected to the lamp socket. A structure has been adopted in which the circuit board and the lamp socket are connected to each other by lead wires.

[0003]

In the above-described conventional apparatus, the lamp socket and the lighting circuit board must be separately mounted and wired, and the assembly is complicated and there is a risk of erroneous wiring.

Therefore, a lamp socket device having a structure in which a circuit board is incorporated in a lamp socket to improve wiring and assemblability has been proposed. However, in order to incorporate the circuit board into the case body integrally formed with the socket portion, a structure in which the circuit board is incorporated into the case body can be considered.

However, when the circuit board is screwed, there is a possibility that the circuit board may be stressed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a cover fixed to a case body to hold a circuit board between the case body and the cover, thereby assembling the circuit board without applying stress to the circuit board. And a circuit board having a connection portion of a terminal body contacting a base terminal pin of a fluorescent lamp and a lighting circuit portion can be easily assembled, and assembling work and electrical connection work are easy, and assemblability is improved. A fluorescent lamp socket device is provided.

[0007]

According to the present invention, there is provided a fluorescent lamp socket device in which a lamp socket portion having a lamp connection terminal body storage chamber formed with an insertion hole for inserting a base terminal pin of a lamp and a lighting component storage portion are integrated. A terminal body, which is housed in the terminal body storage chamber and contacts the base terminal pin inserted through the insertion hole, and is disposed in the opening of the terminal body storage chamber and the lighting component storage chamber. A circuit board formed with a lighting circuit having a connection portion for connecting lighting components housed in the lighting component storage room and having a connection portion electrically connected to the terminal body, and a lid attached to an opening of the case body. The lighting component storage chamber of the case body has a heat-dissipating slit formed in the inner and outer surfaces thereof, and a supporting projection for supporting the circuit board is formed. And a circuit board disposed in the opening of the terminal body storage chamber and the lighting component storage chamber of the case body. The lid is held between the stopped lid and the supporting projection of the case body.

[0008]

According to the fluorescent lamp socket device of the present invention, the circuit board is fitted into the lighting component storage chamber of the case main body and supported by the support projection, and the locking claw of the lid covering the opening of the case main body is provided. The circuit board is clamped and held by attaching the lid to the case body while being locked to the heat-dissipating slit of the case body, so that the circuit board can be easily assembled without applying stress to the circuit board.

In addition, a lamp socket for mounting a fluorescent lamp and a lighting circuit are assembled in a single case body, and a lead wire for connecting a terminal body connected to a base terminal pin of the lamp and a lighting circuit board. Also, the connection between the terminal body and the lighting circuit is easy, the assembling is easy, and the structure is simple and inexpensive.

The heat generated by the lighting circuit components is radiated from the heat-dissipating slits of the case body, so that the temperature of the case body does not rise abnormally and the characteristics of the lighting circuit are stabilized.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

3 and 4, reference numeral 11 denotes a downlight fixture body, for example, a downlight fixture body which is embedded in the ceiling surface and illuminates the lower side. A substantially disk-shaped top plate 14 is fixed to the upper ends of the supports 12 with screws 15.
A tubular fitting portion 16a provided in an annular decorative frame 16 at a lower end portion thereof and fitted into a mounting hole formed in a ceiling plate is fixed by a rivet 17.

A pair of slits 18 are formed in each support 12 along the longitudinal direction, and a mounting bracket 19 which is vertically movable and can be fixed is attached to the slits 18. The ceiling plate on the ceiling surface is sandwiched between the lower end of the mounting bracket 19 and the decorative frame 16.

A lamp socket device 21 is mounted on the lower surface of the top plate 14 by mounting screws 22, and a ballast 24 is mounted by screws 25 adjacent to the lamp socket device 21. .

Further, between the pair of supports 12, there is provided a substantially cylindrical reflector 27 which is open at the top and bottom and contains a single-die-type fluorescent lamp 26. An annular flange portion 28 is projected outside the vicinity of the upper end of the reflector 27. The flange portion 28 is a pair of pull-up springs formed by bending a leaf spring engaged and held by the lamp socket device 21. Locked by 29.

The fluorescent lamp 26 is shown in FIGS.
As shown in the figure, a base 30 having a substantially elliptical cross section is formed at one end of an arc tube 26a bent in a substantially U-shape. Two pairs of base terminal pins 31 connected to the electrodes inside the arc tube are projected from the center of the base 30, and a pair is formed from both ends in the longitudinal direction of the base 30. A joint 30a is provided.

The fluorescent lamp socket device 21 comprises:
As shown in FIGS. 1 and 2, a case body 32 having an open upper surface and formed of a synthetic resin having an insulating property, a case body 32 and a lid 33 formed of a synthetic resin having an insulating property. And a circuit board 34 sandwiched and fixed between the case body 32 and the lid 33.

The case body 32 has a lamp socket section 35 and a lighting circuit arrangement section 37. The lamp socket section 35 is integrally connected to one side of the lighting circuit arrangement section 37. Also, the lamp socket 35 of the case body 32
A pair of substantially arc-shaped base terminal pin insertion holes 42 through which the base terminal pins 31 are inserted are formed in the lower surface which is one surface of the base terminal. Around the base terminal pin insertion hole 42, a base part holding part of a substantially elliptical cylinder into which the base part 30 of the fluorescent lamp 26 is fitted.
At the center of the base 41, and at both ends in the longitudinal direction of the base 41, engaging projections 30a are provided at both ends of the fluorescent lamp 26, respectively. An engagement recess 44 is formed to continuously engage the engagement protrusion 30a with the insertion portion through which the can be inserted.

Further, the lamp socket 35 of the case body 32 has a substantially cross-shaped rib 47 projecting therefrom. The four terminal body storage chambers communicate with the base terminal pin insertion holes 42, respectively.
48 are formed. The terminal bodies 51 are stored in the terminal body storage chambers 48, respectively.

An opening of the terminal body storage chamber 48 is continuously formed on one side of the opening of the lighting part storage chamber 63 of the case main body 32. The lighting part storage chamber 63 and the terminal body storage chamber 48 The openings have different shapes.

The lighting circuit arrangement portion of the case body 32
The 37 has a plurality of heat-dissipating slits 65 and locking holes 68 formed through the lighting component storage chamber 63 and the outside.

As shown in FIG. 3, each of the terminal bodies 51 is made of a conductive elastic material, and has a substantially V-shaped intermediate portion.
A base piece 53 formed by bending into a letter shape to form a protruding part 52; a base terminal pin contact piece 55 formed by bending an end of the base piece 53 through an arcuate bent part 54; A connection piece 57 connected to the circuit board 34 by being bent from the other end of the base piece 53 through an arc-shaped bent portion 56 in parallel with the base terminal pin contact piece 55; I have.

Further, a support piece 59 bent from an arc-shaped bent portion 58 in an inclined manner toward the base piece 53 from the tip of the connection piece 57 toward the base terminal pin contact piece 55 is formed. At the tip of the support piece 59, an arc-shaped curved slide guide 60 that slides on the base terminal pin contact piece 55 is formed. Further, a contact portion 61 curved in an arc shape toward the support piece portion 59 is formed at the tip of the base terminal pin contact piece portion 55.

The connecting piece 57 of each of the terminal bodies 51 is formed with a positioning projection 62 cut and raised.

Each terminal body 51 has a base terminal pin contact piece 55 having a base terminal pin insertion hole on the lower surface of the terminal body storage chamber 48.
It is arranged and stored facing 42, and the connection piece 57 is
48 is opposed to the opening on the upper surface.

A board positioning support projection 70 is provided in the lighting component storage chamber 63 inside the lighting circuit disposition section 37 so as to protrude therefrom.
The height of the support projection 70 is substantially equal to the height of the rib 47 of the terminal body storage chamber 48.

The circuit board 34 is shown in FIGS.
As shown in FIG. 3, the lighting circuit board portion 64 fitted in the opening of the lighting component storage chamber 63 according to the shape of the opening of the lighting component storage chamber 63 of the case main body 32 and having a substantially rectangular shape, and A terminal body connection plate part 69 projecting from one side of the circuit board part 64 and having a shape conforming to the opening of the terminal body storage chamber 48 is integrally formed. Support projection 70
In a state where the terminal body accommodating chamber 48 and the lighting circuit disposing part 37 are closed in contact with the terminal body accommodating chamber 48, the upper surface opening is closed.

A circuit pattern (not shown) is formed on the upper surface of the circuit board 34.
A plurality of lighting components such as transistors located in the lighting component storage chamber 63 are connected to the lower surface of the lighting circuit board portion 64 of the 34, and an electronic lighting circuit that transmits a pulse when the fluorescent lamp 26 is started is configured. .

The terminal connecting plate 69 of the circuit board 34
Each of the connection portions connected to the circuit pattern, for example, a conductive eyelet-shaped connection terminal 73 facing the opening of the terminal body storage chamber 48 is attached to the terminal body 51. Of the positioning projection 62
Is inserted through the center hole of the connection terminal 73 so that the terminal body 51 is positioned.

The lid 33 is formed such that the end of the side edge 74 fitted into the opening of the case body 32 abuts on the upper surface of the peripheral portion of the circuit board 34, and the ribs 47 are supported. The circuit board 34 is held and fixed by the projection 70. The cover 33 has a slit for heat radiation of the case body 32.
Locking claw portions 66 and 67 are formed to lock the circuit board 34 disposed in the opening of the terminal body storage chamber 48 and the lighting component storage chamber 63 of the case body 32. The lid body 33 in which the parts 66 and 67 are locked in the heat dissipation slit 65 and the locking hole 68, and the case body
It is sandwiched and held by the 32 support projections 70.

Further, the case body 32, the circuit board
Mounting holes 75 that penetrate the mounting screw 22 vertically are formed in the cover 34 and the lid 33 so as to communicate with each other.

Next, a method of assembling the fluorescent lamp socket device 21 shown in this embodiment will be described. The terminal body 51 is inserted and fitted into each of the terminal body storage chambers 48 of the case main body 32, and then the circuit board 34 constituting the electronic lighting circuit is fitted from the upper opening of the case main body 32. Terminal body stored
The terminal piece 51 is positioned in a state where the connection piece portion 57 of the terminal 51 is in contact with the connection terminal 73 of the terminal body connection plate portion 69 of the circuit board 34 and the positioning projection 62 is inserted through the center hole of the connection terminal 73. The lighting component 78 of the lighting circuit board portion 64 is disposed in the lighting component storage chamber 63.

At the time of this assembling, the continuous opening between the terminal body storage chamber 48 and the lighting component storage chamber 63 of the case main body 32 has an irregular shape, and the circuit board 34 is formed between the terminal body storage chamber 48 and the lighting component storage chamber 63. The circuit board 34 has a terminal body connection plate 69 and a lighting circuit board 64 of the case body 32 according to the shape of the opening. By disposing in the opening of the circuit board 34, the terminal body connection plate 69 and the lighting circuit board 64 of the circuit board 34 can be aligned with the terminal body storage chamber 48 and the lighting component storage chamber 63, and the circuit board 34 Misassembly is prevented.

Then, the lid 33 is fitted to the case main body 32 and attached to the top plate 14 of the instrument main body 11 with the mounting screws 22. Next, the lamp socket device 21 and the ballast 24 are connected to a lead wire.
Connect with 76.

Next, a method of mounting the fluorescent lamp 26 on the lamp socket device 21 will be described.
The base portion 30 is pushed into the base holding portion 41 of the lamp socket body 32, and then the fluorescent lamp 26 is rotated to engage the engaging projection 30a with the engaging concave portion 44 so as to engage the fluorescent lamp 26. Attach.

In this state, as shown in FIG. 2, the base pin 31 protruding from the base 30 of the fluorescent lamp 26 is inserted through the base terminal pin insertion hole 42 opened on the lower surface of the terminal storage chamber 48.
When the fluorescent lamp 26 is mounted, the base terminal pin of the fluorescent lamp 26 is abutted against the base terminal pin contact piece 55 of the terminal body 51 housed in the terminal body housing chamber 48 and pressed and elastically deformed. Terminal body clamped between 31 and connection terminal 73 of circuit board 34
51 contracts against the biasing force, is mechanically fixed, and is securely connected electrically.

The continuous opening of the terminal body storage chamber 48 and the lighting component storage chamber 63 of the case body 32 is formed in an irregular shape, and the circuit board 34 has the terminal body storage chamber 48 and the lighting component storage chamber 63.
The terminal board connecting plate 69 and the lighting circuit board 64 conforming to the shape of the opening of the circuit board 34. By disposing in the opening of the circuit board 34, the terminal body connection plate 69 and the lighting circuit board 64 of the circuit board 34 can be aligned with the terminal body storage chamber 48 and the lighting component storage chamber 63, and the circuit board 34 Is prevented from being erroneously assembled.

Further, a lamp socket portion 35 for mounting the fluorescent lamp 26 and a lighting component disposing portion 37 are incorporated in one case body, and a terminal body 51 connected to the base terminal pin 31 of the fluorescent lamp 26 and a circuit board There is no need to connect the lead wires that connect the 34, and the connection between the terminal body 51 and the lighting circuit becomes easy,
It is easy to assemble, has a simple structure, and is inexpensive.

[0039]

According to the present invention, the cover is locked to the case body to hold the circuit board between the case body and the cover, so that the circuit board can be assembled without giving any stress to the fluorescent lamp. The circuit board having the connection part of the terminal body contacting the base terminal pin and the lighting circuit part can be easily assembled, the assembling work and the electrical connection work are easy, the assemblability is improved, and the lighting circuit is further improved. The heat generated by the components is radiated from the heat-dissipating slits of the case body, and the temperature of the case body does not rise abnormally, and the characteristics of the lighting circuit are stabilized.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a fluorescent lamp socket device showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a state where the fluorescent lamp is mounted.

FIG. 3 is a longitudinal sectional view of a lighting device using the fluorescent lamp socket device.

FIG. 4 is an exploded perspective view of the same.

[Explanation of symbols]

 26 Fluorescent lamp 31 Cap terminal pin 32 Case body 33 Lid 34 Circuit board 35 Lamp socket part 42 Insertion hole 48 Lamp connection terminal body storage room 51 Terminal body 63 Lighting parts storage room 65 Heat dissipation slit 66 Locking claw 70 Support projection Part 73 Connection terminal as connection part

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01R 33/08 H01R 33/945 F21V 19/00 F21V 23/00

Claims (1)

(57) [Claims] 1. A case body integrally formed with a lamp socket portion and a lighting component storage portion having a lamp connection terminal body storage chamber formed with an insertion hole through which a base terminal pin of a lamp is inserted. A terminal body that is housed and comes into contact with the base terminal pin inserted through the insertion hole, and a lighting component that is disposed in the opening of the terminal body housing room and the lighting component housing room and is housed in the lighting component housing room is connected. A circuit board on which a lighting circuit having a connection portion electrically connected to the terminal body is formed, and a lid attached to an opening of the case main body. Forming a heat-dissipating slit formed in the outer surface of the heat-dissipating through-hole, forming a support protrusion for supporting the circuit board, and forming a locking claw on the lid to be locked to the heat-dissipating slit of the case body; Ke The circuit board disposed in the opening of the terminal body storage chamber and the lighting component storage chamber of the base body is formed by a lid body in which a locking claw is locked to a slit for heat radiation and a support projection of the case body. A fluorescent lamp socket device characterized by being clamped and held.