CN204062613U - Lamp - Google Patents

Abstract

The utility model provides a lamp capable of reducing the temperature of a lighting circuit. The lamp according to the embodiment includes: a hollow frame body (1) with one end side open; an insulating casing (2) having a holding portion (26) protruding toward one end side and at least partly accommodated in the frame body (1); A substrate (41) having an electrical connection portion (43); a light-emitting module (4) having a semiconductor light-emitting element (42) mounted on the substrate (41) and disposed on one end side of an insulating casing (2); disposed on an insulating The lighting circuit (6) in the casing (2); the electrical connection part with the substrate (41) under the condition that one end is connected to the lighting circuit (6) and the other end is held in the holding part (26) of the insulating casing (2). (43) Wires (61) for soldering connection.

Description

lamp

technical field

The embodiment of the utility model relates to a lamp.

Background technique

For example, lamps utilizing light emission of semiconductors such as light emitting diodes are used for lighting and display purposes. This lamp includes a module in which semiconductor light emitting elements such as LEDs are mounted on a substrate, a lighting circuit connected to the module via wires to supply power to the semiconductor light emitting elements, and components that house the semiconductor light emitting elements and the lighting circuit.

Conventionally, when connecting a module to an electric wire extending from a lighting circuit, a method of directly connecting the electric wire to an electrical connection portion on a substrate of the module with solder or the like (hereinafter referred to as a direct soldering method) has been employed. However, the direct soldering method has a problem in that the operability of the soldered connection between the electric wire and the electrical connection part is poor. In order to solve this problem, it is conceivable to separately provide parts for fixing the electric wires, but this will lead to an increase in the number of accessories.

Patent Document 1: Japanese Patent Laid-Open No. 2012-59636

Contents of the invention

The problem to be solved by the utility model is to provide a lamp with simple structure and capable of improving the operability of direct soldering.

In order to solve the above-mentioned problems, the lamp of the embodiment includes: a hollow frame with one end open; A semiconductor light-emitting element mounted on the substrate and a light-emitting module disposed on one end side of the insulating case; a lighting circuit disposed in the insulating case; one end is connected to the lighting circuit, and the other end is held in the insulating case. In the state of the holding portion of the insulating case, the electric wires connected to the electrical connection portion of the substrate are soldered.

According to the present invention, the structure can be simplified, and the operability of direct soldering can be improved.

Description of drawings

FIG. 1 is a diagram for explaining a lamp according to a first embodiment.

Fig. 2 is a plan view of the lamp of the first embodiment.

Fig. 3 is a side view of the insulating case with the housing removed of the lamp according to the first embodiment.

4 is an enlarged view of the vicinity of a lamp holding portion of the first embodiment.

In the figure: 1-frame body, 2-insulating shell, 26-holding part, 3-radiating plate, 4-light-emitting module, 41-substrate, 5-lampshade, 6-lighting circuit, 61-wire, 7-lamp holder, 8 - insulating ring.

Detailed ways

(first embodiment)

A first embodiment will be described with reference to FIGS. 1 to 4 . 1 is a diagram for explaining the lamp of the first embodiment, FIG. 2 is a plan view of the lamp of the first embodiment, and FIG. 4 is an enlarged view of the vicinity of the lamp holding portion of the first embodiment.

The lamp in this embodiment is an LED lamp for lighting or display purposes, and the lamp includes: a frame body 1 , an insulating case 2 , a heat sink 3 , a light emitting module 4 , a lampshade 5 , a lighting circuit 6 , a lamp cap 7 and an insulating ring 8 . In addition, in this embodiment, the direction in which the lamp cover 5 is located when viewed from the base 7 side on the central axis of the lamp is referred to as one end side, and the direction in which the lamp base 7 is located when viewed from the lamp cover 5 side is referred to as the other end side. .

The frame body 1 is a cylindrical casing made of a material with good thermal conductivity, such as aluminum or ceramics, and resin with high heat dissipation. The frame body 1 has openings on one end side and the other end side, and these openings are connected. The frame body 1 has a reduced-diameter shape in which the inner diameter and the outer diameter become smaller from one end side to the other end side. That is, the diameter of the opening on one end side is larger than the diameter of the opening on the other end side. In addition, the thickness is basically the same in all parts, and is about 0.2 mm to 1.0 mm. Such a frame body 1 can be formed by press working.

The insulating case 2 is, for example, made of a material such as polyethylene terephthalate with good electrical insulation and lower thermal conductivity than metal, and at least a part of it is disposed inside the housing 1 . The insulating case 2 has a cylindrical main body portion 21 . Like the frame body 1 , the main body portion 21 has openings on one end side and the other end side, and these openings communicate. Also, the inner diameter becomes smaller from one end side to the other end side. The outer surface of the insulating case 2 is formed in a reduced-diameter shape whose diameter decreases from one end side to the other end side in conformity with the shape of the inner surface of the frame body 1 , and a spiral protrusion is formed on the other end side. In addition, in a state where the insulating case 2 is accommodated inside the housing 1 , the vicinity of the spiral protrusion protrudes to the outside from the opening on the other end side of the housing 1 .

A cylindrical portion 22 , a circuit holding portion 23 , a protruding portion 24 , and an engaging portion 25 are provided inside the insulating case 2 . The cylindrical portion 22 is a cylinder having a screw hole provided at a position near an opening on one end side of the insulating case 2 . The circuit holding part 23 is a bottom-opened elongated box having locking pieces. The protruding portion 24 is a polygonal pillar protruding further toward one end side from an opening on one end side of the insulating case 2 . The engaging portion 25 is a claw protruding from an opening on the one end side of the insulating case 2 to the one end side. In the present embodiment, a pair of cylindrical parts 22 and a pair of circuit holding parts 23 are provided, and three protrusion parts 24 and three engaging parts 25 are provided.

Near the opening on the one end side of the insulating case 2 , a holding portion 26 is formed protruding from the opening in the direction of the one end side. As shown in FIGS. 2 to 4 , the holding portion 26 has a first holding portion 261 and a second holding portion 262 . The first holding portion 261 is a groove-shaped recess extending in a direction (Y direction) substantially parallel to the mounting surface of the substrate 41 of the light emitting module 4 described later. The height of the surface of the bottom 2611 is set to be substantially the same as the height of the mounting surface of the substrate 41 . The second holding portion 262 is a slit formed substantially parallel to the mounting surface of the substrate 41 (in the Y direction). In addition, a wire insertion portion 27 is formed in the vicinity of the holding portion 26 , particularly on the side surface of the insulating case 2 on the other end side of the holding portion 26 .

The heat sink 3 is a thin plate made of a material having good thermal conductivity, for example, metal such as aluminum, and is disposed so as to cover an opening on one end side of the insulating case 2 . The heat sink 3 has a threaded hole 31 , a first notch 32 at the edge, a second notch 33 , and an insertion portion 34 . and the protruding part 24 protrudes from the first notch 32 to one end side of the heat dissipation plate 3, the engaging part 25 protrudes from the second notch 33 to one end side of the heat dissipation plate 3, and the holding part 26 extends from the insertion part 34 to the heat dissipation One end side of the plate 3 protrudes. Thus, the heat dissipation plate 3 is positioned, and the heat dissipation plate 3 is fixed to the insulating case 2 by screwing the screw 91 into the threaded hole 31 .

The light emitting module 4 has a substrate 41 , LEDs 42 , and an electrical connection portion 43 , and is disposed so as to be in contact with one end side of the heat sink 3 . The substrate 41 is a thin plate made of a material with good thermal conductivity, such as aluminum or ceramics. The substrate 41 has a substantially rectangular shape with four corners cut off, and notches for screws (not shown) are formed on the side of the cut-off portion, and the heat sink 3 is mechanically and thermally connected to the substrate 41 by screwing in the screws 92 . The LED 42 is a semiconductor light emitting element called a light emitting diode, and is electrically connected to a wiring pattern (not shown) formed on the substrate 41 . Specifically, the light-emitting diode is a light-emitting diode that emits blue light on a component such as resin, and is covered with a yellow phosphor layer so as to cover the light-emitting chip. In this embodiment, five light-emitting diodes are arranged. . The electric connection part 43 is an input terminal for feeding power to each LED42, and is electrically connected to a wiring pattern.

The lampshade 5 is a transparent or milky white translucent cover with polycarbonate as the main component. The globe 5 has a hemispherical shape, and an engaged portion 51 and a protrusion 52 are formed on the opening side thereof. An opening is formed in the engaged portion 51 . The protrusion 52 is provided at a position where the protruding portion 24 of the insulating case 2 is disposed between the engaged portion 51 and the protrusion 52 . Therefore, as far as the lampshade 5 is concerned, by engaging the engaging portion 25 of the insulating housing 2 with the engaged portion 51 of the lampshade 5, the lampshade 5 can be held on the insulating housing 2, and the lampshade 5 can be used to cover the light-emitting module 4. The way is configured on the frame 1.

The lighting circuit 6 is a circuit for supplying desired electric power to the light emitting module 4 and is housed in the insulating case 2 . The lighting circuit 6 includes: a circuit board on which predetermined metal wiring is provided on an electrically insulating board such as epoxy resin; circuit elements mounted on the circuit board; and electric wires 61 . Circuit elements are composed of electronic components such as transformers, FETs (field effect transistors), and capacitors. The lighting circuit 6 is accommodated and fixed inside the insulating case 2 by accommodating the circuit board in the groove of the circuit holding portion 23 of the insulating case 2 and locking one end side of the circuit board by the locking piece.

The base 7 is a power supply unit for being attached to a lamp socket of a device, is attached to a spiral protrusion at the other end of the insulating case 2 , and is electrically connected to the lighting circuit 6 . The lamp cap 7 has: a helical part, which is a helical metal part formed on the side; an eyelet, which is a metal part formed on the bottom surface; an insulating part (not shown), which is arranged between the helical part and the hole, so that the helical The portion where the shape and the eyelet are electrically insulated from each other.

The insulating ring 8 is an annular member made of an insulating member, and is provided on the outer periphery of the portion of the insulating case 2 protruding from the frame body 1 so that the insulating ring 8 is located between the frame body 1 and the base 7 .

Hereinafter, assembly of the lamp of this embodiment will be described.

After fixing the lighting circuit 6 to the circuit holding portion 23 , the insulating case 2 is accommodated in the housing 1 . At this time, the other end of the electric wire 61 connected to the lighting circuit 6 at one end is led out to the one end side of the insulating case 2 through the electric wire insertion portion 27 . Then, the insulating ring 8 is attached to the outer peripheral portion of the insulating case 2 protruding from the opening on the other end side of the frame body 1, and the cap 7 is electrically connected to the lighting circuit 6, and then the cap 7 is screwed to the spiral protrusion.

Next, dispose the heat sink 3 on one end side of the insulating case 2 so that the first cutout 32, the second cutout 33, and the insertion portion 34 of the heat sink 3 are respectively aligned with the protruding portion 24, the engaging portion 25, The holding part 26 is screwed and fixed with a screw 91 . At this time, if the light emitting module 4 is connected to the heat dissipation plate 3 through the screw 92 in advance, the operation will be relatively smooth. Then, the electric wire 61 drawn out to one end side of the insulating case 2 through the electric wire insertion portion 27 is held in the second holding portion 262 of the holding portion 26, and then the electric wire 61 is held in the first holding portion 261 after being bent approximately 90 degrees, and the The front end portion is disposed on the electrical connection portion 43 . Accordingly, the movement of the electric wire 61 in the direction of the mounting surface of the substrate 41 (especially in the X direction) is restricted, and the other end of the electric wire 61 and the electrical connection portion 43 are easily positioned. Next, the electrical connection part 43 and the electric wire 61 are connected by soldering to form the solder connection part 44 , thereby completing the electrical and mechanical connection between the electrical connection part 43 and the electric wire 61 . Finally, the globe 5 is mounted on the insulating case 2 so that the engaging portion 25 is engaged with the hole of the engaged portion 51 , and the globe 5 is disposed on one end side of the housing 1 .

In the first embodiment, by holding the electric wire 61 extending from the lighting circuit 6 in the holding portion 26 protruding toward one end side of the insulating case 2, the electric wire 61 can be easily arranged in the electrical connection portion 43 of the light emitting module 4, Therefore, the solder connection between the electrical connection portion 43 and the electric wire 61 can be easily performed. In addition, by making the holding portion 26 protrude toward one end side of the heat sink 3 through the insertion portion 34 of the heat sink 3, the heat generated by the light emitting module 4 can be dissipated by the heat sink 3, and the electric wire 61 can be easily held. In the holding part 26, even the solder connection of the electrical connection part 43 and the electric wire 61 can be performed easily.

Moreover, by holding the electric wire 61 extending in a direction substantially parallel to the mounting surface of the LED 42 of the substrate 41 on the first holding portion 261 of the holding portion 26, it is possible to connect the electric wires in the direction along the mounting surface, particularly in the X direction. The connection part 43 and the electric wire 61 are positioned, and the solder connection between the electric connection part 43 and the electric wire 61 can be performed more easily. Moreover, since the first holding portion 261 is a recess, and the height of the bottom surface 2611 of the recess is the same as the height of the mounting surface of the substrate 41, it is possible to align the electrical connection portion 43 and the electric wire in the direction perpendicular to the mounting surface, that is, in the Z direction. 61 is positioned, and the soldering connection between the electrical connection part 43 and the electric wire 61 can be performed more easily. Moreover, by holding the electric wire 61 extending in a direction substantially perpendicular to the mounting surface of the board 41 on the second holding portion 262 of the holding portion 26, the electric wire 61 can be stably held on the first holding portion 261, and the electric wire 61 can be restrained from 61 falls off from the first holding portion 261 .

In addition, the electric wire 61 is held by the second holding portion 262 by passing through the electric wire insertion portion 27 of the insulating case 2, and is held by the first holding portion after being bent between the first holding portion 261 and the second holding portion 262. 261 , so that the wire 61 extending from the lighting circuit 6 accommodated inside the insulating case 2 can be effectively and accurately guided to the electrical connection portion 43 of the light emitting module 4 .

The present invention is not limited to the above-mentioned embodiment, and various modifications are possible.

For example, the number of LEDs 42 can be freely changed according to requirements. In addition, the LED 42 may be replaced with a laser diode or a COB (Chip On Board) light source in which a plurality of LED chips are packaged with a phosphor-containing resin.

The number of the cylindrical part 22, the circuit holding part 23, the protrusion part 24, the engaging part 25, etc. is not limited to the number in embodiment, and can be changed.

Several embodiments of the present invention have been described above. The above-mentioned embodiments of the utility model are just examples, and are not intended to limit the scope of the utility model. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the gist of the present invention. These embodiments and modifications thereof all belong to the scope or gist of the present invention, and are also included in the invention described in the claims and the equivalent scope thereof.

Claims (7)

1. a lamp, is characterized in that, possesses:

End side opening and the framework of hollow;

Have to the outstanding maintaining part of end side, and be contained in the insulation crust in described framework at least partially;

Have substrate and be installed on the semiconductor light-emitting elements on described substrate and be configured at the light emitting module of the end side of described insulation crust, this substrate has electrical connection section;

Be configured at the lamp circuit in described insulation crust;

At one end be connected to described lamp circuit and under the other end is held in the state of described maintaining part of described insulation crust, the electric wire be connected with the described electrical connection section solder of described substrate.

2. lamp according to claim 1, is characterized in that:

Be provided with in the end side of described framework and have insertion portion and the heat sink configured for described light emitting module, the described maintaining part of described insulation crust is outstanding to the end side of described heat sink by described insertion portion.

3. lamp according to claim 1 and 2, is characterized in that:

Described maintaining part possesses the 1st maintaining part, and the 1st maintaining part keeps the described electric wire extended along the direction almost parallel with the installed surface of the described semiconductor light-emitting elements of described substrate.

4. lamp according to claim 3, is characterized in that:

Described 1st maintaining part is recess, and the height of the bottom surface of described recess is identical with the height of described installed surface.

5. lamp according to claim 3, is characterized in that:

Described maintaining part possesses the 2nd maintaining part, and the 2nd maintaining part keeps the described electric wire extended along the direction substantially vertical with described installed surface.

6. lamp according to claim 5, is characterized in that:

Described insulation crust has electric wire insertion portion, and described electric wire is by being held in described 2nd maintaining part after described electric wire insertion portion, then described electric wire is bent and is held in described 1st maintaining part.

7. a lamp, is characterized in that, has:

There is the substrate of electrical connection section;

Be installed on the light-emitting component on this substrate;

Make the lamp circuit of this light-emitting component luminescence;

Connect one end of this lamp circuit and the electric wire of described substrate;

This electric wire is held in the maintaining part that the installed surface of the part of this electric wire and described substrate is almost parallel.