WO2018095063A1

WO2018095063A1 - Electrical connection structure and led light

Info

Publication number: WO2018095063A1
Application number: PCT/CN2017/094433
Authority: WO
Inventors: 曾茂进; 陈小波
Original assignee: 漳洲立达信光电子科技有限公司
Priority date: 2016-11-25
Filing date: 2017-07-26
Publication date: 2018-05-31
Also published as: CN106642031A

Abstract

An electrical connection component and an LED light. The electrical connection component comprises a light source plate (10) and a driving board (20). Through holes (11) are provided at the light source plate (10). Terminals (30) are disposed at locates near the through holes (11) of the light source plate (10). Electrodes (21) are disposed at locations corresponding to the through holes (11) and on the driving board (20). Each of the terminals (30) comprises an integrated main body part (31) and contact part (32). The main body part (31) is a U-shaped or V-shaped plate. The contact port (32) is a plate protruding outside the main body part (31). One side surface of the main body part (31) is soldered and fixed to the light source plate (10). The electrodes (21) protrude and pass through the through holes (11) to elastically contact against the contact parts (32). The electrodes (21) are electrically connected to the terminals (30). The design is compact in structure, requires a small space, and is applicable to a small-size LED light, preventing a soldering issue, increasing factory manufacturing efficiency, and reducing labor costs.

Description

Electrical connection structure component and LED lamp

The invention relates to an electrical connection structure assembly and an LED lamp.

The electrical connection structure component of the existing LED lamp, such as the electrical connection structure component of the G4, G9 mini lamp, comprises a light source plate and a driving plate, the driving plate has an electrode, and the electrode and the light source plate are directly welded by a wire bonding process to realize The fixed and electrical connections are directly welded by the wire bonding process, the production efficiency is low, the qualification rate is poor, and the factory feedback problems are more.

In view of the above deficiencies, a solderless solution has been proposed, such as CN103047625B announced in the Chinese Patent Database, an electrical connector including an input terminal and an output terminal, the output terminal being disposed on a driving board, and the light source board corresponding to the input terminal a fixing hole is fixed in the fixing hole of the light source board and electrically connected to the light source board, the output terminal includes two contacts, one ends of the two contacts are electrically connected to the driving board respectively, The input terminal includes two connecting heads, and the two connecting heads are respectively disposed corresponding to the two contacts, and one ends of the two connecting heads are respectively electrically connected to the light source board, and when assembled, two touches of the output terminal The heads are respectively inserted into two corresponding connectors corresponding to the input terminals, and the two connectors respectively elastically abut the two contacts. On the one hand, in some small-sized LED lamps, the above-mentioned input terminal and output terminal cannot be provided due to space reasons. On the other hand, an output terminal is added, and the input terminal is fixed in the fixing hole of the light source plate, and the structure has Further compact possibilities.

The present invention provides an electrical connection structure assembly and LED lamp that overcomes the deficiencies of the electrical connection structure components of LED lamps in the prior art.

One of the technical solutions adopted by the present invention to solve its technical problems is:

An electrical connection structure assembly, comprising a light source plate and a driving plate, the light source plate is provided with a through hole, and a terminal is further disposed at a position near the through hole of the light source plate, and the driving plate is provided with an electrode corresponding to the position of the through hole, The terminal includes a body portion and an abutting portion, the body portion is integrally connected with the abutting portion, and the body portion has a U-shaped or V-shaped sheet shape, and the abutting portion is a sheet-like body protruding from the body portion, and a side of the body portion Soldering is fixed to the light source plate, and the electrode extends into and through the through hole to elastically abut the contact portion, and the electrode forms an electrical connection with the terminal.

In one embodiment, the open side of the U-shaped or V-shaped structure of the body portion faces a position where the through hole of the light source plate is opened.

In one embodiment, the driving board has a connecting portion, the connecting portion is elongated, the connecting portion has a width smaller than an aperture of the through hole, and the electrode is disposed at an end of the connecting portion.

In one embodiment: the electrode is formed by tin plating of the pad.

In one embodiment, the orthographic projection of the abutting portion along the front side to the back side of the light source panel is at least partially located in the through hole.

In one embodiment, the width of the body portion is greater than the width of the abutting portion, and the center line of the body portion in the width direction coincides with the center line of the abutting portion.

In one embodiment, the contact portion has a width of 40% to 95% of the width of the body portion.

In one embodiment, the ratio of the length of the terminal after extension to the width of the body portion is 0.5-3.

The second technical solution adopted by the present invention to solve the technical problems thereof is:

The LED lamp includes a lamp housing, a lamp cover, a light source panel and a driving board. The lamp cover is disposed at a top of the lamp housing. The driving board and the light source panel are disposed in an accommodating space formed by the lamp housing and the lamp cover. The top of the driving board is electrically connected to the light source board, and the electrical connection structure between the light source board and the driving board adopts the above-mentioned electrical connection structure component.

Compared with the background art, the technical solution has the following advantages:

The terminal comprises a body portion and a contact portion. The body portion has a U-shaped or V-shaped sheet shape, and the abutting portion is a sheet-like body protruding from the body portion. One side of the body portion is welded and fixed to the light source plate, and the electrode extends into and through The through hole is elastically abutted against the abutting portion, and the electrode is electrically connected to the terminal, which overcomes the disadvantages of the prior art and has the following technical effects: First, the output terminal of the background art is omitted, and the terminal is not extended. The hole has a compact structure and a small footprint, and can be applied to a small-sized LED lamp. Secondly, it avoids the problem of welding wire, improves the production efficiency of the factory, and saves labor costs.

figure 1

It is a schematic perspective view of the electrical connection structure assembly of the present invention.

figure 2

It is an exploded perspective view of Fig. 1.

image 3

It is a sectional view of Fig. 1 along the A-A direction.

Figure 4

It is a schematic perspective view of the LED lamp of the present invention.

Figure 5

It is a three-dimensional schematic view of the lampshade and the lamp housing of Fig. 4 in an exploded state.

Figure 6

It is a perspective exploded view of FIG. 4.

Figure 7

It is a cross-sectional view of Fig. 4 along the B-B direction.

The electrical connection structure assembly and the LED lamp of the present invention are further described below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 to FIG. 3 , an electrical connection structure assembly includes a light source panel 10 and a driving board 20 . The light source panel 10 is provided with a through hole 11 , and a terminal is further disposed near the through hole 11 of the light source panel 10 . 30. The driving board 20 is provided with an electrode 21 corresponding to the position of the through hole 11. The terminal 30 includes a body portion 31 and an abutting portion 32. The body portion 31 is integrally connected with the abutting portion 32 and the terminal 30 is made of a conductive material. The body portion 31 has a U-shaped or V-shaped sheet shape, and the abutting portion 32 is a sheet-like body protruding from the body portion 31. The body portion 31 is welded to the light source panel 10 on one side, and the electrode 21 extends into and penetrates. The through hole 11 is elastically abutted against the abutting portion 32, and the electrode 21 is electrically connected to the terminal 30. The above-mentioned nearby position is not used to limit the specific pitch of the terminal and the through hole, but is used to mean that the contact portion 32 of the terminal 30 and the electrode 21 can abut each other after the terminal 30 is fixed to the light source panel 10. In the present embodiment, the main body portion 31 of the terminal 30 can be soldered to the LED light source panel by an automatic mounting machine.

The driving plate 20 has a connecting portion 22 which is elongated. The width of the connecting portion 22 is smaller than the diameter of the through hole 11 so that the connecting portion 22 can be inserted into the through hole 11 and can pass through the through hole 11. The electrode 21 is disposed at the end of the connecting portion 22, and is specifically disposed to be fixed to the end of the connecting portion 22. The electrode 21 is formed by soldering a pad on the driving board.

In order to enhance the elastic contact pressure of the abutting portion 32 and the electrode 21, in order to make the terminal structure more compact: the opening side of the U-shaped or V-shaped structure of the body portion 31 faces the position where the through hole 11 is formed in the light source panel 10. In a specific structure, at least part of the orthogonal projection of the abutting portion 32 along the light source panel 10 from the front to the back is located in the through hole 11.

In order to enhance the elastic contact pressure between the abutting portion 32 and the electrode 21, it is ensured that the two are in a contact state. Preferably, the end surface of the abutting portion 32 constitutes a contact surface 321, and the contact surface 321 of the abutting portion 32 elastically abuts the electrode. 21 surface.

In the embodiment, the width of the main body portion 31 is larger than the width of the abutting portion 32, and the center line of the main body portion 31 in the width direction coincides with the center line of the abutting portion 32; the width of the contact portion 32 is 40% to 95% of the width of the main body portion 31. In order to effectively avoid skew due to unstable center of gravity; the ratio of the length of the terminal 30 after extension to the width of the body portion 31 is 0.5-3, so as to ensure that the center of gravity of the terminal is at the center of the pad to pass the automated placement machine The terminal can be well adsorbed by the suction cup during the welding process, and about 1:1 is preferred. The spring force of the terminal ranges from 0.2N to 10N, with 1N to 2N being preferred.

Referring to Figures 4 through 7, they illustrate an LED lamp employing the electrical connection assembly described above. The LED lamp, such as a G4, G9 mini lamp, includes a lamp housing 40, a lamp cover 50, a light source panel 10, and a drive board 20. The lamp cover 50 is fixedly disposed on the top of the lamp housing 40, and an accommodation space 60 is formed between the lamp cover 50 and the lamp housing 40. An LED light source 12 is disposed on the front surface of the light source board 10. The driving board 20 and the light source board 10 are fixedly disposed in the accommodating space 60 formed by the lamp housing 40 and the lamp cover 50. The top of the driving board 20 and the light source board 20 Electrically connected, the front side of the light source panel 10 faces the lamp cover 50. The electrical connection structure between the light source panel 10 and the driving board 20 adopts the above-mentioned electrical connection structure assembly, the electrical connection structure between the light source panel 10 and the driving board 20 is compact, and the terminal 30 has a small volume and can be applied to a small volume. The LED lamp, such as the G4 and G9 mini lamps with a diameter of 16mm and a length of 48mm, is not limited to this lamp, and can be used in other LED lamps as needed.

The above is only the preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, that is, equivalent changes and modifications made in accordance with the scope of the invention and the contents of the specification should still be covered by the present invention. Within the scope.

Claims

An electrical connection structure assembly, comprising a light source plate and a driving plate, the light source plate is provided with a through hole, and a terminal is further disposed at a position near the through hole of the light source plate, and the driving plate is provided with an electrode corresponding to the position of the through hole, The terminal includes a body portion and an abutting portion, the body portion is integrally connected with the abutting portion, and the body portion has a U-shaped or V-shaped sheet shape, and the abutting portion is a sheet-like body protruding from the body portion, One side of the body portion is welded and fixed to the light source plate, and the electrode extends into and through the through hole to elastically abut the contact portion, and the electrode forms an electrical connection with the terminal.
The electrical connection structure assembly according to claim 1, wherein an opening side of the U-shaped or V-shaped structure of the body portion faces a position where the through hole of the light source plate is opened.
The electrical connection structure assembly of claim 1 , wherein the driving plate has a connecting portion, the connecting portion is elongated, the connecting portion has a width smaller than an aperture of the through hole, and the electrode is disposed at the connecting portion The end.
The electrical connection structure assembly of claim 3 wherein the electrode is formed by tin plating the pad.
The electrical connection structure assembly according to claim 1, wherein a distal end surface of the abutting portion constitutes a contact surface; and a contact surface of the abutting portion elastically abuts against the surface of the electrode.
The electrical connection structure assembly of claim 1 , wherein the abutting portion is at least partially located in the through hole along an orthographic projection of the light source panel from the front side to the back side.
The electrical connection structure assembly according to claim 2, wherein the body portion has a width larger than the contact portion width, and the center line of the body portion in the width direction and the center line of the abutting portion coincide.
The electrical connection structure assembly of claim 7 wherein the contact portion has a width that is between 40% and 95% of the width of the body portion.
The electrical connection structure assembly according to claim 7, wherein the ratio of the length of the terminal after extension to the width of the body portion is 0.5-3.
An LED lamp includes a lamp housing, a lamp cover, a light source panel and a driving board. The lamp cover is disposed at a top of the lamp housing. The driving board and the light source panel are disposed in an accommodating space formed by the lamp housing and the lamp housing. The top of the driving board is electrically connected to the light source board, and the electrical connection structure between the light source board and the driving board is the electrical connection structure assembly according to any one of claims 1 to 9.