CN104214745A - heat sink - Google Patents

Abstract

The invention discloses a radiator, which is formed by laminating and assembling a plurality of radiating fins, wherein the production process of a single radiating fin is relatively simple, the production and processing difficulty of the radiator can be reduced, and the production efficiency is improved; the edge of the radiating fin is vertically provided with a plurality of connecting sheets, the upper parts of the connecting sheets are provided with notches with openings at the upper ends, the lower parts of the connecting edges are provided with inserting sheets matched with the notches, the upper end edges of the notches are provided with tenons protruding outwards, and the inserting sheets are provided with mortises matched with the tenons; the radiating fins are stacked, the connecting sheet positions on the adjacent radiating fins are aligned one by one, when the radiating fins are assembled, the inserting sheets on the upper connecting sheets are inserted into the inserting holes on the lower connecting sheets, and meanwhile, the tenons on the inserting holes are buckled into the mortises on the inserting sheets, so that the adjacent radiating fins are connected with each other, the assembling operation is simple, the assembling can be completed quickly, and the assembling efficiency is high. After the assembly, the opposite surfaces of the adjacent radiating fins are separated by intervals, so that ventilation and heat dissipation are facilitated, each radiating fin can be fully contacted with air, and the heat dissipation efficiency is improved.

Description

heat sink

technical field

The invention relates to the technical field of LED lighting, in particular to a radiator with fast heat dissipation.

Background technique

The problem of heat dissipation is an important problem that needs to be solved for many power electronic equipment, LED lamps and other heat-prone devices. The quality of the heat dissipation effect is directly related to the service life of the device. For the problem of heat dissipation, fans are generally used in the prior art to actively dissipate heat, or radiators are used to passively dissipate heat. However, the disadvantages of using fans to actively dissipate heat are: the fans are noisy and dusty, and the service life cannot be guaranteed. When a radiator is used for passive heat dissipation, a radiator with a larger heat dissipation volume is required to satisfy heat dissipation.

Existing radiators have different shapes, and most of them are equipped with cooling fins. The radiators with cooling fins are all integrally formed, and the cooling fins cannot be disassembled. However, the integrated production of radiators has the following problems:

1. During the production of the radiator, it is difficult to control the precision of the thickness of the radiator;

2. If there is a defect in a certain part of the radiator, the entire LED radiator will be scrapped, which will easily cause a lot of waste and also lead to a decrease in production efficiency;

3. The entire set of production molds for radiators of different specifications is different, and the versatility is not strong.

The manufacturing process of the single-piece heat sink is simple, and the thickness is easier to control and trim. If the LED heat sink can be produced separately and the heat sink can be produced separately, the above problem can be solved. The heat sink can be used on LED radiators of different specifications. The heat sink has strong versatility and can solve the above problems. Replacement, thereby reducing waste, can solve the above problem 2.

Therefore, how to produce the LED heat sink separately and quickly assemble it is a technical problem to be solved urgently in the industry.

Contents of the invention

The main purpose of the present invention is to provide a radiator, which aims to realize the separate production of the radiator, reduce the production difficulty, improve the production efficiency, solve the problems that the thickness of the radiator is difficult to control, and the radiator is easy to be scrapped, and realize the heat sink. Efficient heat dissipation.

The present invention proposes a radiator, which is formed by stacking and assembling a plurality of cooling fins. Several connecting fins are arranged vertically on the edges of the cooling fins. The lower part of the notch is provided with an insertion piece adapted to the notch, and an outwardly protruding tenon is provided on the upper end of the notch, and a tenon groove adapted to the tenon is provided on the insertion piece; The heat sinks are stacked, and the positions of the connecting pieces on the adjacent heat sinks are aligned one by one. The inserts on the connecting pieces on the upper layer are inserted into the sockets on the connecting pieces on the lower layer, and the corresponding tenons are buckled into the corresponding ones. The adjacent heat sinks are connected to each other in the tongue and groove; after the connection, there is a gap between the opposite surfaces of the adjacent heat sinks.

Preferably, the tenon is inclined downward, and the lower edge of the tenon groove is inwardly recessed.

Preferably, the edge of the heat sink is provided with a slot with an outer end opening, and the positions of the slots adjacent to the heat sink are aligned one by one to form a strip-shaped slot, and a strip-shaped slot is inserted into the strip-shaped slot. A suitable connection bar is provided with a connection hole for connecting with the LED light source board.

Preferably, the connecting strip is L-shaped, one end of which is vertically provided with a folded edge, and the folded edge overlaps the outermost heat sink.

Preferably, the slots are U-shaped slots or dovetail slots, and the bar-shaped slots formed by aligning the slots are U-shaped slots or dovetail slots.

Preferably, the connecting pieces are arranged on both sides of the notch.

Preferably, the heat sink is polygonal, and the heat sink formed by stacking the heat sink is a polyhedron, and the slot and the connecting fin are arranged on each side or several sides of the heat sink.

Preferably, a plurality of ventilation holes are provided on the heat sink, and the adjacent positions of the ventilation holes on the heat sink are aligned one by one to form a ventilation cavity.

Preferably, several mounting holes are provided on the heat sink.

The beneficial effects of radiator of the present invention are:

1. The heat sink of the present invention is formed by stacking and assembling heat sinks produced separately. The production process of a single heat sink is relatively simple, and the thickness of a single heat sink is also easier to control and trim, which can reduce the difficulty of production and processing of the heat sink. Improve production efficiency; moreover, the cost of a single heat sink is much lower than that of existing radiators. If there are defects in the heat sink, when it is unqualified, the cost of the heat sink is also much lower than that of the whole radiator, thereby reducing cost.

2. The heat sink of the present invention is formed by stacking and assembling heat sinks produced separately. The single heat sink is thin and light, which can reduce the weight and consumables of the heat sink; moreover, during the production or use of the heat sink, if a certain place If there is a defect, it is only necessary to replace the defective heat sink, and there is no need to scrap the whole heat sink, thereby reducing waste.

3. A number of connecting pieces are vertically arranged on the edge of the heat sink, a notch with an upper end opening is arranged on the upper part of the connecting piece, an insert piece adapted to the notch is arranged on the lower part of the connecting side, and a There is an outwardly protruding tenon, and a tenon groove matching the tenon is provided on the insert; when the heat sink is assembled, insert the insert on the upper connecting piece into the socket on the lower connecting piece, and at the same time buckle the tenon on the socket into the insert The adjacent heat sinks are connected to each other in the tongue and groove, the assembly operation is simple, can be completed quickly, and the assembly efficiency is high.

4. Since the notch is set on the upper part of the connecting piece and the inserting piece is set on the lower part of the connecting piece, the inserting piece on the upper connecting piece is inserted into the socket on the lower connecting piece, so that after the heat sinks are connected to each other, the upper heat sink is supported by the connecting piece On the lower heat sink, there is a certain distance between the opposite surfaces of the upper heat sink and the lower heat sink, so that a ventilation groove is formed between the opposite faces of the heat sink, which is conducive to ventilation and heat dissipation, and allows each heat sink to fully contact with the air to improve heat dissipation. efficiency.

Moreover, there are a number of ventilation holes on the heat sink, and the positions of the ventilation holes on adjacent heat sinks are aligned one by one to form a ventilation cavity. The ventilation cavity and the ventilation groove intersect vertically and horizontally, and communicate with each other to realize 360° ventilation and heat dissipation of the radiator, and the heat dissipation is uniform. Can speed up the overall cooling effect of the radiator.

5. On the edge of the heat sink, there is a slot with an outer end opening, and the positions of the slots on adjacent heat sinks are aligned one by one to form a strip-shaped slot, and a suitable connecting strip is inserted in the strip-shaped slot. There is a connecting hole for connecting with the LED light source board on the bar, which can be connected with the LED light source board through the connecting bar, and the LED light source board is installed on the side of the radiator, which is convenient for the installation of the LED light source board; this radiator can be used for high-power Corn lights, bulb lights, industrial and mining lights, etc., are widely used.

Description of drawings

Fig. 1 is the perspective view one of heat sink in the embodiment of radiator of the present invention;

Fig. 2 is the second perspective view of the cooling fin in the embodiment of the radiator of the present invention;

Fig. 3 is an enlarged view of part A in Fig. 2;

Fig. 4 is the structure schematic diagram that two cooling fins are stacked and connected in the embodiment of the radiator of the present invention;

Fig. 5 is the perspective view of radiator in the embodiment of radiator of the present invention;

Fig. 6 is the perspective view of connecting bar in the embodiment of radiator of the present invention;

Fig. 7 is a front view of the radiator in the embodiment of the radiator of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to Fig. 1 to Fig. 7, an embodiment of the radiator of the present invention is proposed. The radiator is columnar and formed by stacking and assembling a plurality of fins 10 produced separately. The heat sink 10 is arranged in a regular polygon, and several connecting fins 20 are vertically arranged on the edge of the heat sink 10. The positions of the connecting fins 20 on the laminated heat sinks 10 are aligned, and the connecting fins 20 are used for the connection between the laminated heat sinks 10. . The connecting sheet 20 is formed by extending vertically downward along the edge of the heat sink 10 , and integrally formed with the heat sink 10 . A notch 21 with an open upper end is provided on the upper part of the connecting piece 20 . The notch 21 is formed by cutting downward from the joint between the edge of the heat sink 10 and the connecting piece 20 , and is arranged in a rounded trapezoidal shape with a wide top and a narrow bottom. The lower part of the connecting edge is provided with an inserting piece 22 adapted to the notch 21 , and the inserting piece 22 on the lower part of the connecting piece 20 on the upper heat sink 10 is inserted into the notch 21 on the upper part of the connecting piece 20 on the lower heat sink 10 . A protruding tenon 23 is provided on the upper end of the notch 21, and a tenon groove 24 adapted to the tenon 23 is provided on the insertion piece 22. When the insertion piece 22 is inserted into the notch 21, the tenon 23 is buckled into the tenon groove 24 in.

When the cooling fins 10 are stacked and assembled, the insertion piece 22 on the upper connection piece 20 is inserted into the socket on the lower connection piece 20, and the tenon 23 on the socket is buckled into the tenon groove 24 on the insertion piece 22 at the same time, so that the adjacent cooling fins 10 are connected to each other to complete the assembly of the radiator, the assembly operation is simple, can be completed quickly, and the assembly efficiency is high.

Wherein, the tenon 23 is set downward and outwardly inclined, so that when the insertion piece 22 is inserted into the notch 21, the friction force between the tenon 23 and the insertion piece 22 is small, and the insertion piece 22 can slide over the tenon 23 preferably. , to facilitate the connection of the heat sink 10.

The lower end of the tenon groove 24 is inwardly recessed, so that when the insert piece 22 is inserted into the socket, the lower end edge of the tenon groove 24 blocks the tenon 23 in the tenon groove 24 , so that the tenon 23 is stuck in the tenon groove 24 .

The heat sink is formed by stacking and assembling heat sinks 10 produced separately. The single heat sink 10 is thin and light, which can reduce the weight and consumables of the heat sink; and the production process of the single heat sink 10 is relatively simple, and the single heat sink 10 The thickness of the radiator is also easier to control and trim, which can reduce the difficulty of production and processing of the radiator and improve production efficiency.

The cost of the single heat sink 10 is much lower than that of the existing heat sink. If the heat sink 10 has defects and is unqualified, the cost of the heat sink is much lower than that of the whole heat sink, thereby reducing the cost. Moreover, during the production or use of the radiator, if there is a defect in a certain place, it is only necessary to replace the defective radiator fin 10 without scrapping the radiator as a whole, thereby reducing waste.

Because the notch 21 is arranged on the top of the connecting piece 20, and the inserting piece 22 is arranged on the bottom of the connecting piece 20, then the inserting piece 22 on the upper connecting piece 20 is inserted into the socket on the lower connecting piece 20, so that after the heat sinks 10 are connected to each other , the upper heat sink 10 is supported on the lower heat sink 10 through the connecting piece 20, and there is a certain distance between the opposite surfaces of the upper heat sink 10 and the lower heat sink 10, so that a ventilation groove 30 is formed between the opposite faces of the heat sink 10, which is beneficial to Ventilation and heat dissipation allow each heat sink 10 to be in full contact with the air, improving heat dissipation efficiency.

A plurality of ventilation holes 12 are arranged on the heat sink 10, and the ventilation holes 12 are arranged in a flower shape, and the positions of the ventilation holes 12 on adjacent heat sinks 10 are aligned one by one to form a ventilation cavity. The ventilation cavity and the ventilation groove 30 intersect vertically and horizontally, and communicate with each other, so as to realize 360° ventilation and heat dissipation of the radiator, and the heat dissipation is uniform, and the overall heat dissipation effect of the radiator can be accelerated.

The edge of the heat sink 10 is provided with a slot 11 with an outer end opening, and the positions of the slots 11 on adjacent heat sinks 10 are aligned one by one to form a strip-shaped clamping slot. The slot 11 is a U-shaped slot or a dovetail slot, and the bar-shaped slot formed by aligning the slots 11 is a U-shaped slot or a dovetail slot. An adapted connecting bar 40 is inserted into the bar-shaped slot, and a connecting hole 42 for connecting with the LED light source board is provided on the connecting bar 40 .

As shown in FIG. 1 , the slots 11 are U-shaped slots, and the bar-shaped slots formed by aligning the slots 11 are U-shaped slots. The heat sink 10 is polygonal, and the heat sink formed by stacking the heat sink 10 is a polyhedron. On each side of the heat sink 10, there is a slot 11 and two connecting pieces 20, and the connecting pieces 20 are arranged on both sides of the slot 11. Therefore, the connecting piece 20 and the bar-shaped slot are arranged on each side of the heat sink, and the bar-shaped slot is placed between two rows of connecting pieces 20 .

The connecting strip 40 is L-shaped, and one end is vertically provided with a folded edge 41. When the connecting strip 40 is inserted into the bar-shaped slot, the folded edge 41 overlaps the outermost heat sink 10 at one end of the radiator, so that the connecting strip 40 is fixed. . When installing the LED light source board, stick the LED light source board on the two rows of connecting pieces 20 on the side of the radiator, place the connecting strip 40 in the strip-shaped slot in the middle opposite to the back of the LED light source board, and set the LED light source board on the LED light source board. There is a connecting hole corresponding to the connecting hole 42 on the connecting bar 40, and screws are installed in the opposite connecting holes on the LED light source board and the connecting bar 40, so that the LED light source board can be connected and fixed on the radiator. The LED light source board is connected to the LED light source board through the connecting strip 40, and the LED light source board is installed on the side of the heat sink, which facilitates the installation of the LED light source board. A plurality of mounting holes 13 are also provided on the heat sink 10 to facilitate the installation of the LED light source board at the end of the heat sink. The back of the installed LED light source board is attached to the heat sink, with a large area of contact and fast heat conduction. The radiator can be used for high-power corn lamps, bulb lamps, industrial and mining lamps, etc., and has a wide range of uses.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, are all the same. included in the scope of patent protection of the present invention.

Claims (9)

1. a radiator, it is characterized in that, formed by the stacked assembling of some fin, be provided with some braces in the edge-perpendicular of described fin, be provided with the notch of upper end open on the top of described brace, be provided with in the bottom of described fillet and the inserted sheet of described notch adaptation, be provided with outwardly tenon on the limit, upper end of described notch, on described inserted sheet, be provided with the tongue-and-groove with described tenon adaptation; The stacked placement of described fin, align one by one in brace position on adjacent described fin, inserted sheet described in upper strata on brace inserts described in lower floor in the socket on brace, and corresponding described tenon buckles in corresponding described tongue-and-groove, and adjacent described fin is interconnected; After connection, between the opposite face of adjacent described fin, be separated with spacing.

2. radiator according to claim 1, is characterized in that, described tenon is downward-sloping setting, and the limit, lower end of described tongue-and-groove is inwardly recessed.

3. according to the radiator described in claim, it is characterized in that, the edge of described fin is provided with the short slot of outer end opening, align one by one in described short slot position on adjacent described fin, form strip-shaped clamp groove, in described strip-shaped clamp groove, be inserted with the connection strap of an adaptation, on described connection strap, be provided with the connecting hole for being connected with LED light source plate.

4. radiator according to claim 3, is characterized in that, described connection strap is L-type, and its one end is vertically provided with flanging, and described flanging is overlapped on outermost described fin.

5. radiator according to claim 3, is characterized in that, described short slot is U-shaped groove or dovetail groove, and it is U-shaped draw-in groove or dove-tail form draw-in groove that the described strip-shaped clamp groove forming is arranged in described short slot alignment.

6. according to the radiator described in claim 3 or 5, it is characterized in that, described brace is arranged on the dual-side of described short slot.

7. radiator according to claim 6, is characterized in that, described fin is polygon, and the described radiator of the stacked formation of described fin is polyhedron, and described short slot and described brace are arranged on each limit of described fin or on some limits.

8. radiator according to claim 1, is characterized in that, is provided with some air vents on described fin, and the described vent locations on adjacent described fin is alignd one by one, forms vented cavity.

9. according to the radiator described in claim 1 or 8, it is characterized in that, on described fin, be provided with some installing holes.