CN216313666U

CN216313666U - Connection structure of circuit board and aluminium base board

Info

Publication number: CN216313666U
Application number: CN202122577823.9U
Authority: CN
Inventors: 郭英振
Original assignee: Jiangmen Jinzhisheng Photoelectric Technology Co ltd
Current assignee: Jiangmen Jinzhisheng Photoelectric Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-15
Anticipated expiration: 2031-10-26

Abstract

A connecting structure of a circuit board and an aluminum substrate belongs to the field of connection of the circuit board and the aluminum substrate and aims to solve the problem that the circuit board or the aluminum substrate is difficult to replace after being damaged, and the connecting structure comprises a connecting clamping plate; the connecting clamping plate is characterized in that through holes are formed in four end corners of the connecting clamping plate, two arc-shaped limiting clamping blocks are symmetrically arranged on the left inner wall and the right inner wall of the connecting clamping plate, a rectangular cavity is formed in the middle of the connecting clamping plate, and an aluminum substrate and a circuit board are clamped in the upper end surface and the lower end surface of the connecting clamping plate respectively; this connection structure of circuit board and aluminium base board is through with aluminium base board and circuit board joint both sides about connecting the cardboard respectively, make the fixed orifices of aluminium base board and the fixed lockhole of circuit board peg graft respectively in the top and the bottom of spliced pole, then the elasticity clamp splice joint is in aluminium base board top and circuit board bottom respectively under the effect of spring leaf, prevent that aluminium base board and circuit board from rocking on connecting the cardboard, be favorable to avoiding aluminium base board and circuit board's welding to appear the fracture, conveniently change aluminium base board and circuit board, so that use cost is reduced.

Description

Connection structure of circuit board and aluminium base board

Technical Field

The utility model relates to the technical field of connection of circuit boards and aluminum substrates, in particular to a connection structure of a circuit board and an aluminum substrate.

Background

In an LED lamp, the LED lamp generally includes a circuit board and an aluminum substrate for mounting the LED lamp, the circuit board and the aluminum substrate are mostly connected by a wire or an additional connector, and the existing connection structure of the circuit board and the aluminum substrate usually adopts an adhesive bonding or welding manner, which results in that the circuit board and the aluminum substrate are connected as a whole, and when the circuit board or the aluminum substrate is damaged, the circuit board or the aluminum substrate cannot be replaced independently, which increases the use cost.

Therefore, the connection structure of the circuit board and the aluminum substrate is provided by researching and improving the existing structure and defects so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a connecting structure of a circuit board and an aluminum substrate, which aims to solve the problem that the use cost is increased because the circuit board and the aluminum substrate are connected into a whole due to the fact that the existing connecting structure of the circuit board and the aluminum substrate in the background art is usually in a bonding or welding mode, and the circuit board or the aluminum substrate cannot be independently replaced when damaged.

The purpose and the effect of the connecting structure of the circuit board and the aluminum substrate are achieved by the following specific technical means:

a connecting structure of a circuit board and an aluminum substrate comprises a connecting clamping plate;

the connecting clamping plate is characterized in that through holes are formed in four end corners of the connecting clamping plate, two arc-shaped limiting clamping blocks are symmetrically arranged on the left inner wall and the right inner wall of the connecting clamping plate, a rectangular cavity is formed in the middle of the connecting clamping plate, and an aluminum substrate and a circuit board are clamped in the upper end surface and the lower end surface of the connecting clamping plate respectively;

the connecting column is rotatably connected in the through hole, and the upper end and the lower end of the connecting column are inserted with the inserting blocks;

the elastic clamping blocks are clamped in the connecting columns.

Furthermore, four corners of the aluminum substrate are provided with fixing holes corresponding to the through holes, the left side wall and the right side wall of the aluminum substrate are respectively provided with an arc-shaped limiting clamping groove, the limiting clamping grooves are clamped on limiting clamping blocks on the left side wall and the right side wall of the top end face of the connecting clamping plate, and the middle of the top end face of the aluminum substrate is provided with a pad seat.

Furthermore, four corners of the circuit board are provided with fixing lock holes corresponding to the through holes, the left side wall and the right side wall of the circuit board are respectively provided with an arc-shaped fixing clamping groove, the fixing clamping grooves are clamped on limiting clamping blocks on the left side wall and the right side wall of the bottom end face of the connecting clamping plate, two pin pins are symmetrically arranged in the middle of the top end face of the circuit board, and the top ends of the pin pins pass through the cavity of the connecting clamping plate and penetrate through the aluminum substrate to be welded on the pad base.

Furthermore, a convex limiting ring is arranged in the middle of the outer side wall of the connecting column, and the connecting column is connected into the through hole of the connecting clamping plate through the left end of the limiting ring.

Furthermore, the elastic clamping blocks are designed in pairs, two spring pieces are arranged between the two elastic clamping blocks, and the upper end and the lower end of each elastic clamping block are respectively clamped on the top end face of the aluminum substrate and the bottom end face of the circuit board.

Furthermore, the inserting block is inserted between the upper end and the lower end of the two elastic clamping blocks, and the bottom of the inserting block adopts a concave structure.

Furthermore, uneven anti-skidding lines are arranged in the front outer side wall and the rear outer side wall of the connecting clamping plate.

Compared with the prior structure, the utility model has the following beneficial effects:

1. according to the utility model, the aluminum substrate and the circuit board are respectively clamped on the upper side and the lower side of the connecting clamping plate, so that the fixing holes of the aluminum substrate and the fixing locking holes of the circuit board are respectively inserted at the top and the bottom of the connecting column, and then the elastic clamping blocks are respectively clamped on the top of the aluminum substrate and the bottom of the circuit board under the action of the spring pieces, so that the aluminum substrate and the circuit board are prevented from shaking on the connecting clamping plate, the aluminum substrate and the circuit board are prevented from cracking during welding, the aluminum substrate and the circuit board are convenient to replace, and the use cost is reduced.

2. According to the utility model, the insertion block is inserted in the middle of the upper end and the lower end of the elastic clamping block, so that the fixing and limiting effects of the upper end and the lower end of the elastic clamping block on the aluminum substrate and the circuit board are improved, and the connecting structure is firmer.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic view of the overall split structure of the present invention;

FIG. 3 is a schematic view of the overall cutaway structure of the present invention;

FIG. 4 is a schematic view of a connection card plate removal structure according to the present invention;

FIG. 5 is a schematic view of the structure of the present invention with the connecting column, the elastic clamping block and the inserting block separated.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. connecting a clamping plate; 101. a through hole; 102. a limiting clamping block; 103. a cavity; 104. anti-skid lines; 2. a circuit board; 201. fixing the lock hole; 202. fixing the clamping groove; 203. a pin; 3. an aluminum substrate; 301. a fixing hole; 302. a limiting clamping groove; 303. a pad base; 4. connecting columns; 401. a limiting ring; 5. an elastic clamping block; 501. a spring plate; 6. and (5) inserting the blocks.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a connecting structure of a circuit board and an aluminum substrate, which comprises: the connecting clamping plate 1;

referring to fig. 1 and 2, the upper and lower both ends face of connecting cardboard 1 is the indent design, through hole 101 has been seted up at four corners department of connecting cardboard 1, the symmetry is provided with two spacing fixture blocks 102 of arc on the inner wall about connecting cardboard 1, the centre department of connecting cardboard 1 is rectangle cavity 103, be provided with unevenness's anti-skidding line 104 in the front and back lateral wall of connecting cardboard 1, the joint has aluminium base board 3 and circuit board 2 respectively in the upper and lower both ends face of connecting cardboard 1, concrete function, connect cardboard 1 and set up the centre department at aluminium base board 3 and circuit board 2, separate aluminium base board 3 and circuit board 2, can increase aluminium base board 3 and circuit board 2's intensity and can also improve aluminium base board 3 and circuit board 2's security, anti-skidding line 104 that sets up in the front and back lateral wall of connecting cardboard 1, can increase frictional force, improve the convenience when taking panel, it is impaired to avoid panel to drop.

Referring to fig. 2, four corners of aluminium base board 3 are located and have been seted up the fixed orifices 301 corresponding with through hole 101, set up the spacing draw-in groove 302 of arc in the left and right sides wall of aluminium base board 3, spacing draw-in groove 302 joint is on connecting the spacing fixture block 102 on the lateral wall about 1 top end face of cardboard, department is provided with pad seat 303 in the middle of the top end face of aluminium base board 3, the concrete effect, aluminium base board 3 passes through the spacing draw-in groove 302 joint of arc on connecting the spacing fixture block 102 on the lateral wall about 1 top end face of cardboard, with this prevent that aluminium base board 3 from rocking on connecting cardboard 1, improve the stability of connecting.

Referring to fig. 2, four corners of the circuit board 2 are provided with fixing locking holes 201 corresponding to the through holes 101, the left and right side walls of the circuit board 2 are provided with arc-shaped fixing clamping grooves 202, the fixing clamping grooves 202 are clamped on the limiting clamping blocks 102 on the left and right side walls of the bottom end surface of the connecting clamping plate 1, two pins 203 are symmetrically arranged in the middle of the top end surface of the circuit board 2, the top ends of the pins 203 pass through the aluminum substrate 3 from the cavity 103 of the connecting clamping plate 1 and are welded on the pad base 303, and the circuit board 2 is clamped on the limiting clamping blocks 102 on the left and right side walls of the bottom end surface of the connecting clamping plate 1 through the fixing clamping grooves 202 to ensure the stability of the circuit board 2 mounted at the bottom of the connecting clamping plate 1 and prevent the circuit board 2 from shaking, and the pins 203 on the top of the circuit board 2 pass through the cavity 103 of the connecting card board 1 and penetrate through the aluminum substrate 3 to be welded on the pad seat 303, so that the circuit board 2 is electrically connected with the aluminum substrate 3.

Referring to fig. 3 and 4, the connecting column 4 is rotatably connected in the through hole 101, the insertion blocks 6 are inserted into the upper end and the lower end of the connecting column 4 in a splicing manner, the connecting column 4 is of a hollow cylindrical structure, the middle of the outer side wall of the connecting column 4 is provided with a convex limiting ring 401, the connecting column 4 is connected in the through hole 101 of the connecting clamping plate 1 through the left end of the limiting ring 401, the aluminum substrate 2 and the aluminum substrate 3 are limited and fixed through the connecting column 4 installed in the through hole 101, the upper end and the lower end of the connecting column 4 are respectively connected in the fixing hole 301 of the aluminum substrate 3 and the fixing locking hole 201 of the circuit substrate 2, the aluminum substrate 3 and the circuit substrate 2 are limited in connection through secondary connection, the aluminum substrate 3 and the circuit board 2 are prevented from shaking in the connecting clamping plate 1, and the connection stability is convenient to improve.

Referring to fig. 3 and 5, the elastic clamping blocks 5 are clamped in the connecting column 4, the elastic clamping blocks 5 are designed in pairs, two spring pieces 501 are arranged between the two elastic clamping blocks 5, the upper and lower ends of the elastic clamping blocks 5 are in a conical shape, the upper and lower ends of the elastic clamping blocks 5 are respectively clamped on the top end surface of the aluminum substrate 3 and the bottom end surface of the circuit board 2, the inserting block 6 is inserted between the upper and lower ends of the two elastic clamping blocks 5, the inserting block 6 is made of rubber, the bottom of the inserting block 6 adopts a concave structure, the concrete function is that when the aluminum substrate 3 and the circuit board 2 are respectively clamped on the upper and lower sides of the connecting clamping plate 1, the upper and lower ends of the elastic clamping blocks 5 are respectively clamped on the top end surface of the aluminum substrate 3 and the bottom end surface of the circuit board 2 under the action of the spring pieces 501, and then the inserting block 6 is inserted in the middle of the upper and lower ends of the elastic clamping blocks 5, so as to improve the fixing and limiting effect of the upper and lower ends of the elastic clamping blocks 5 on the aluminum substrate 3 and the circuit board 2, the connecting structure is firmer, and the aluminum substrate 3 and the circuit board 2 are conveniently replaced at the same time, so that the use cost is reduced.

The specific use mode and function of the embodiment are as follows:

when the connecting structure of the circuit board and the aluminum substrate is used, firstly, the aluminum substrate 3 is placed on the connecting clamping board 1 from the top of the connecting clamping board 1, the fixing holes 301 of the aluminum substrate 3 are inserted into the tops of the connecting columns 4, then the circuit board 2 is placed on the connecting clamping board 1 from the bottom of the connecting clamping board 1, the fixing locking holes 201 of the circuit board 2 are inserted into the bottoms of the connecting columns 4, when the aluminum substrate 3 and the circuit board 2 are respectively clamped on the upper side and the lower side of the connecting clamping board 1, the upper end and the lower end of the elastic clamping block 5 are respectively clamped on the top end face of the aluminum substrate 3 and the bottom end face of the circuit board 2 under the action of the spring pieces 501, then the inserting block 6 is inserted into the middle of the upper end and the lower end of the elastic clamping block 5, the installation of the aluminum substrate 3 and the circuit board 2 is completed, and then the pins 203 on the top of the circuit board 2 are welded on the pad base 303.

In summary, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A connecting structure of a circuit board and an aluminum substrate comprises: a connecting card (1);

the method is characterized in that: through holes (101) are formed in four corners of the connecting clamping plate (1), two arc-shaped limiting clamping blocks (102) are symmetrically arranged on the left inner wall and the right inner wall of the connecting clamping plate (1), a rectangular cavity (103) is formed in the middle of the connecting clamping plate (1), and an aluminum substrate (3) and a circuit board (2) are clamped in the upper end face and the lower end face of the connecting clamping plate (1) respectively;

the connecting column (4) is rotatably connected into the through hole (101), and the upper end and the lower end of the connecting column (4) are inserted with the inserting blocks (6);

the elastic clamping blocks (5) are clamped in the connecting columns (4).

2. The structure of claim 1, wherein: four corners of the aluminum substrate (3) are provided with fixing holes (301) corresponding to the through holes (101), the left side wall and the right side wall of the aluminum substrate (3) are respectively provided with an arc-shaped limiting clamping groove (302), the limiting clamping grooves (302) are clamped on limiting clamping blocks (102) on the left side wall and the right side wall of the top end face of the connecting clamping plate (1), and the middle of the top end face of the aluminum substrate (3) is provided with a pad seat (303).

3. The structure of claim 1, wherein: the fixed lock hole (201) corresponding to the through hole (101) is formed in the four corners of the circuit board (2), arc-shaped fixed clamp grooves (202) are formed in the left side wall and the right side wall of the circuit board (2), the fixed clamp grooves (202) are clamped on the limiting clamp blocks (102) on the left side wall and the right side wall of the bottom end face of the connecting clamp plate (1), two pin pins (203) are symmetrically arranged in the middle of the top end face of the circuit board (2), and the top ends of the pin pins (203) pass through a cavity (103) of the connecting clamp plate (1) and penetrate through the pad of the aluminum substrate (3) to be welded on the base (303).

4. The structure of claim 1, wherein: the middle of the outer side wall of the connecting column (4) is provided with a convex limiting ring (401), and the connecting column (4) is connected into a through hole (101) of the connecting clamp plate (1) through the left end of the limiting ring (401).

5. The structure of claim 1, wherein: the elastic clamping blocks (5) are designed in pairs, two spring pieces (501) are arranged between the two elastic clamping blocks (5), and the upper end and the lower end of each elastic clamping block (5) are respectively clamped on the top end face of the aluminum substrate (3) and the bottom end face of the circuit board (2).

6. The structure of claim 1, wherein: the insert block (6) is inserted between the upper end and the lower end of the two elastic clamping blocks (5), and the bottom of the insert block (6) adopts a concave structure.

7. The structure of claim 1, wherein: uneven anti-skidding lines (104) are arranged in the front outer side wall and the rear outer side wall of the connecting clamping plate (1).