CN210432041U

CN210432041U - Aluminum-based heat dissipation type circuit board

Info

Publication number: CN210432041U
Application number: CN201920929017.3U
Authority: CN
Inventors: 唐芬娟
Original assignee: Shaoxing Shangyu Kaida Electronic Co ltd
Current assignee: Shaoxing Shangyu Kaida Electronic Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-28
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses an aluminium base heat dissipation type circuit board, including guard box and circuit board, the circuit board includes metal basic unit, circuit layer and insulating layer, metal basic unit is located the lower surface on circuit layer, the insulating layer is located the upper surface on circuit layer, and is a plurality of the circuit board is placed in the guard box, metal basic unit's bottom bonds and has lower connecting plate, the top of insulating layer is equipped with the upper junction plate. The utility model has the advantages that: the top at the circuit board is fixed the upper junction plate at its upper surface through first screw, passes through the second screw in the bottom of circuit board and fixes lower connecting plate, connecting seat all at its lower surface, protects the upper and lower two sides of circuit board to set up the joint groove on the upper junction plate, connect the base and can block in the joint inslot, realize the concatenation of two circuit boards, make parallel fixed together between two circuit boards, mutual collision between the circuit board when preventing the highway section of jolting.

Description

Aluminum-based heat dissipation type circuit board

Technical Field

The utility model relates to a circuit board field specifically is an aluminium base heat dissipation type circuit board.

Background

The circuit board has the name: the circuit board makes the circuit miniaturized, direct-viewing, plays important role to fixed circuit's batch production and optimization electrical apparatus overall arrangement. The circuit board is after batch production is good, can sell through online or off-line, and the online generally all can be transported through the express delivery of selling, and current circuit board packaging mode is arranged the circuit board in the protective box and is placed, but when the freight train met road surface unevenness's highway section, the circuit board in the protective frame can make a round trip to rock collision each other, can lead to the work that the circuit board can not be normal after the collision, can lead to the permanent damage of circuit board even.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve the above problems by providing an aluminum-based heat dissipation circuit board with spaced arrangement to prevent mutual collision.

The utility model realizes the above purpose by the following technical proposal, an aluminum-based heat dissipation type circuit board comprises a protection box and a circuit board, wherein the circuit board comprises a metal base layer, a circuit layer and an insulating layer, the metal base layer is positioned on the lower surface of the circuit layer, the insulating layer is positioned on the upper surface of the circuit layer, a plurality of circuit boards are placed in the protection box, the bottom of the metal base layer is bonded with a lower connecting plate, the top of the insulating layer is provided with an upper connecting plate, a plurality of upper positioning threaded holes are arranged between the upper connecting plate and the insulating layer, the upper positioning threaded holes are internally threaded with first screws, the upper surface of the upper connecting plate is provided with a clamping groove, the bottom of the lower connecting plate is provided with a connecting seat which is clamped with the clamping groove, and lower positioning threaded holes are arranged among the bottom, and a second screw is connected with the inner thread of the lower positioning threaded hole.

By adopting the technical scheme, because the circuit boards are provided with a plurality of mounting holes, the upper surface of the insulating layer is provided with the upper connecting plate, the upper positioning threaded hole is arranged between the upper connecting plate and the lower connecting plate and is fixedly connected by the first screw, so as to protect the upper surface of the circuit board, the lower surface of the metal base layer is provided with the lower positioning threaded hole and is fixedly connected by the second screw, so as to protect the lower surface of the circuit board, the second screw also passes through the connecting seat to fix the connecting seat below the lower connecting plate, the upper surface of the upper connecting plate is provided with the clamping groove, so that the superposition mode between the upper circuit board and the lower circuit board is that the connecting seat of one circuit board is inserted into the clamping groove of the other circuit board, so as to realize the splicing of the two circuit boards, so that the two circuit boards are fixed together in parallel, and, there is certain space through joint groove and connecting seat connection between two circuit boards, helps the heat dissipation of connecting plate down.

Preferably, the clamping groove is a dovetail groove, and the bottom of the connecting seat is a dovetail.

Through adopting above-mentioned technical scheme, the dovetail of connecting seat bottom can be convenient in the dovetail in the card, can guarantee the stationarity that the vertical direction is connected between two circuit boards.

Preferably, the clamping groove is a trapezoidal groove, and the bottom of the connecting seat is a trapezoidal block.

Through adopting above-mentioned technical scheme, the card that the trapezoidal piece of connecting seat bottom can be convenient is in the dovetail groove, can guarantee the stationarity that the vertical direction is connected between two circuit boards.

Preferably, the top of the upper positioning threaded hole is provided with an upper counter bore, the diameter of the upper counter bore is larger than that of the first screw, the bottom of the lower positioning threaded hole is provided with a lower counter bore, and the diameter of the lower counter bore is larger than that of the second screw.

Through adopting above-mentioned technical scheme, set up the counter bore, when first screw worn last location threaded hole, the screw cap of first screw can prevent that first screw from exposing outside in last counter bore, and is more pleasing to the eye, can also keep the space that two circuit boards exist, sets up lower floor's hole, and the second screw is absorbed in completely in the connecting seat, ensures the normal cooperation in connecting seat and joint groove.

Preferably, the metal base layer is made of an aluminum alloy material, the insulating layer is made of epoxy resin, and the upper connecting plate and the lower connecting plate are made of copper materials.

By adopting the technical scheme, the aluminum alloy has good thermal conductivity, the epoxy resin has many unique advantages of high insulating property, large structural strength, good sealing property and the like, and the copper material has good thermal conductivity and is convenient for heat conduction of the circuit board.

Preferably, the side walls of the protection box are provided with spongy cushions, and the bottom of the protection box is provided with a plurality of air holes.

Through adopting above-mentioned technical scheme, set up the foam-rubber cushion, when the circuit board rocked in the guard box, prevent that the circuit board direct collision from playing the protection effect at the lateral wall of guard box to set up the bleeder vent in the guard box bottom, increaseed the flow of guard box inside and outside air.

To sum up, the utility model discloses following beneficial effect has: the top at the circuit board is fixed the upper junction plate at its upper surface through first screw, passes through the second screw in the bottom of circuit board and fixes lower connecting plate, connecting seat all at its lower surface, protects the upper and lower two sides of circuit board to set up the joint groove on the upper junction plate, connect the base and can block in the joint inslot, realize the concatenation of two circuit boards, make parallel fixed together between two circuit boards, mutual collision between the circuit board when preventing the highway section of jolting. The lateral wall at the guard box all is equipped with the foam-rubber cushion, and the bottom of guard box is equipped with a plurality of bleeder vents, when the circuit board rocked in the guard box, prevents that the circuit board direct collision from playing the protection effect at the lateral wall of guard box to set up the bleeder vent in the guard box bottom, strengthened the flow of the inside and outside air of guard box.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of an aluminum-based heat dissipation type circuit board according to the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the aluminum-based heat dissipation type circuit board of the present invention.

Reference numerals: 1. a metal base layer; 2. a circuit layer; 3. an insulating layer; 4. a lower connecting plate; 5. an upper connecting plate; 6. an upper positioning threaded hole; 7. a first screw; 8. a clamping groove; 9. a connecting seat; 10. a lower positioning threaded hole; 11. a second screw; 12. an upper counter bore; 13. a lower counter bore; 14. a protection box; 15. a sponge cushion; 16. air holes are formed; 17. a circuit board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The first embodiment is as follows: an aluminum-based heat dissipation type circuit board, as shown in figure 1,

firstly, drilling a plurality of air holes 16 at the bottom of a protective box 14 through a drill to increase the flow of air inside and outside the protective box 14, then attaching a sponge cushion 15 on the side edge of the protective box 14 through glue, then milling a dovetail groove and a dovetail joint on a connecting seat 9 and an upper connecting plate 5 through a sliding table saw or a special sectioning saw additional building milling machine, drilling an upper counter bore 12 and an upper positioning threaded hole 6 on the upper connecting plate 5 through the drill, then placing the upper connecting plate 5 on an insulating layer 3 and locking the insulating layer through a first screw 7, similarly, drilling a plurality of lower positioning threaded holes 10 on a lower connecting plate 4, also drilling a lower positioning threaded hole 10 and a lower positioning threaded hole 13 at the bottom of the connecting seat 9 from bottom to top, finally placing the connecting seat 9, the lower connecting plate 4 and a metal base layer 1 at the bottom of a circuit board 17 in sequence, and penetrating into the lower positioning threaded holes 10 from the bottom of the connecting seat 9 through a second screw 11, make connecting seat 9, lower connecting plate 4 fixes the lower surface at the metal substrate 1 of circuit board 17, accomplish the installation of a circuit board 17, splice a plurality of circuit board 17 with the same reason, and to the connection between two circuit boards 17, insert the dovetail in joint groove 8 through the dovetail on connecting seat 9, realize the concatenation between two circuit boards 17, make parallel fixed together between two circuit boards 17, mutual collision between circuit board 17 when preventing the highway section of jolting, metal substrate 1 is made by aluminum alloy material, the aluminum alloy has good heat conductivity, insulating layer 3 is made for epoxy, epoxy's insulating properties is high, structural strength is big and many unique advantages such as sealing performance is good.

Example two: an aluminum-based heat dissipation circuit board, as shown in fig. 2, is different from the embodiment in that: the shape of joint groove 8 is the dovetail groove, and the shape of connecting seat 9 shape is trapezoidal block, and the trapezoidal block inserts in the dovetail groove, and other parts are all similar.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an aluminium base heat dissipation type circuit board, includes guard box (14) and circuit board (17), circuit board (17) include metal basic unit (1), circuit layer (2) and insulating layer (3), metal basic unit (1) is located the lower surface of circuit layer (2), insulating layer (3) are located the upper surface of circuit layer (2), and are a plurality of circuit board (17) are placed in guard box (14), its characterized in that: the bottom of metal-based layer (1) bonds and has lower connecting plate (4), the top of insulating layer (3) is equipped with upper junction plate (5), a plurality of positioning screw hole (6) of going up have been seted up between upper junction plate (5) and insulating layer (3), and go up positioning screw hole (6) female connection and have first screw (7), joint groove (8) have been seted up to the upper surface of upper junction plate (5), the bottom of connecting plate (4) is equipped with connecting seat (9) down, connecting seat (9) and joint groove (8) looks joint, positioning screw hole (10) have been seted up down between the bottom of connecting seat (9), lower connecting plate (4) and metal-based layer (1), and positioning screw hole (10) female connection has second screw (11) down.

2. The aluminum-based heat dissipation type wiring board of claim 1, wherein: the clamping groove (8) is a dovetail groove, and the bottom of the connecting seat (9) is a dovetail joint.

3. The aluminum-based heat dissipation type wiring board of claim 1, wherein: the clamping groove (8) is a trapezoidal groove, and the bottom of the connecting seat (9) is a trapezoidal block.

4. The aluminum-based heat dissipation type wiring board of claim 1, wherein: go up the top of positioning thread hole (6) and be equipped with counter bore (12), and go up the diameter that counter bore (12) and be greater than the diameter of first screw (7), the bottom of positioning thread hole (10) is equipped with down counter bore (13), and the diameter of counter bore (13) is greater than the diameter of second screw (11).

5. The aluminum-based heat dissipation type wiring board of claim 1, wherein: the metal base layer (1) is made of an aluminum alloy material, the insulating layer (3) is made of epoxy resin, and the upper connecting plate (5) and the lower connecting plate (4) are made of copper materials.

6. The aluminum-based heat dissipation type wiring board of claim 1, wherein: the side wall of the protection box (14) is provided with a spongy cushion (15), and the bottom of the protection box (14) is provided with a plurality of air holes (16).