CN205118957U - A cooling device for lamps and its LED high bay lamp - Google Patents

Abstract

The utility model relates to the technical field of lamps, and discloses a heat dissipation device for lamps, including a support assembly and a locking member, wherein a plurality of heat dissipation units are sequentially stacked between the support assembly and the locking member; when the heat dissipation device is in use, its transverse convection gap can realize transverse convection of air, thereby realizing transverse 360-degree all-round heat dissipation, and at the same time, the longitudinal convection channel can further disperse the heat longitudinally to the corresponding heat dissipation unit, and also perform direct convection heat dissipation along the longitudinal convection channel, effectively improving the heat dissipation efficiency, and at the same time, the heat dissipation device adopts stamping molding, which has the advantages of simple structure and easy assembly. In addition, the utility model also provides an LED mining lamp, which can effectively improve the service life of the mining lamp after using the above heat dissipation device, has better light effect, and is more reliable to use.

Description

A cooling device for lamps and its LED high bay lamp

technical field

The utility model relates to the technical field of lighting fixtures, in particular to a heat dissipation device for a lighting fixture and an LED industrial and mining lamp thereof.

Background technique

At present, LED lamps have the characteristics of energy saving and long life, and avoid the trouble of changing bulbs frequently. They are favored by more and more users and have been widely used. However, in the field of LED lamps, because they belong to semiconductor electric light sources, that is, light-emitting diodes, also known as semiconductor lamps, are electric light sources without filaments, which directly convert electric energy into light energy, so that during use, Its calorific value is large, so the heat dissipation of LED lamps is always a long-term problem in this field. If the heat dissipation performance of LED lamps is poor, it will seriously affect the light efficiency and life of LED light sources.

The Chinese patent discloses an LED lamp, which includes a substrate with LED lamp beads integrated on its surface, a housing connected to the substrate, a control board electrically connected to the LED lamp beads, and a lampshade connected to the substrate. The lampshade includes a connecting plate, a plurality of reflective cups connected with the connecting plate and a radiator connected with the connecting plate. The reflective cups are one-to-one corresponding to accommodate the LED lamp beads, and the connection between the connecting plate and the reflective cups is provided with light outlet holes corresponding to the reflective cups one-to-one. A pipe is connected between the connecting plate and the base plate, one end of the pipe passes through the connecting plate, the other end of the pipe passes through the base plate, and the radiator is arranged in the pipe. When the above-mentioned LED lamp is working, a large amount of heat is accumulated in the LED lamp. Designing the lampshade and the base plate as a ventilated structure can promote the circulation of hot air in the LED lamp and the outside air, so that the heat in the LED lamp can be dissipated quickly, thereby improving the heat dissipation efficiency; although this kind of LED lamp can improve a certain heat dissipation However, in actual use, under the influence of the radiator structure, the air convection of this kind of pipe is poor, and the outer cooling fins are distributed in a circle, which cannot achieve horizontal air convection, and can only rely on its own surface for heat dissipation , the thermal conductivity is poor, especially for large lamps, such as: industrial and mining lamps, searchlights and other high-power lighting lamps, this defect is particularly obvious. Make improvements.

Utility model content

The purpose of this utility model is to provide a cooling device for lamps and lanterns, which has the advantages of simple structure, high heat dissipation efficiency and easy assembly; the utility model also provides an LED high bay lamp , the high bay lamp has the advantages of good light efficiency and long service life.

In order to achieve the above purpose, a heat dissipation device for lamps of the present invention includes a support assembly and a locking piece, and several heat dissipation units are sequentially stacked between the support assembly and the locking piece, and the several heat dissipation units There are transverse convection gaps between the units, the plurality of heat dissipation units have longitudinal convection channels, and the support assembly is provided with a support column passing through the plurality of heat dissipation units and connected to the locking piece.

Further, the heat dissipation unit includes a heat dissipation body, and the heat dissipation body is punched with several convection holes distributed in a ring, and one side of the several convection holes has the heat dissipation fins formed by punching out, and the heat dissipation body has The central part is provided with a central hole and a connection hole for the support column to pass through.

Preferably, the plurality of convection holes include an inner ring convection group and an outer ring convection group arranged outside the inner ring convection group, and both sides of the convection holes of the outer ring convection group have the heat dissipation fins formed by punching .

Further, the heat dissipation device also includes heat conduction columns for passing through several heat dissipation units.

Preferably, the heat dissipation unit is provided with a heat conduction hole through which the heat conduction column passes, and the heat conduction hole also has a wrapping portion for covering the heat conduction column formed by punching a reverse edge.

Further, a support block is provided on the edge of the heat dissipation unit, and the support block and the heat dissipation unit are integrally stamped and formed. In this solution, there are at least three support blocks, and of course, more support blocks can be provided as required.

Preferably, the support block includes a receiving portion and an embedding portion connected to the accommodating portion, and the accommodating portion is provided with an embedding groove for connecting the embedding portion.

Further, the support assembly includes a support plate and a heat conduction plate connected to the support plate.

An LED industrial and mining lamp, comprising a lampshade and an LED module set inside the lampshade, and also includes the heat dissipation device as described above, the heat dissipation device is connected with the LED module, the top of the heat dissipation device is provided with an end cover, the The end cover is provided with cooling holes.

Further, the outside of the heat dissipation hole is provided with a stamped weather shield, and the included angle α between the weather shield and the heat dissipation hole is 20-80 degrees.

Beneficial effects of the utility model: Compared with the prior art, a heat dissipation device for a lamp of the utility model includes a support assembly and a locking piece. There are horizontal convection gaps between the several heat dissipation units, the several heat dissipation units have longitudinal convection channels, and the support assembly is provided with a support that passes through the several heat dissipation units and is connected to the locking piece column; when the cooling device is in use, its horizontal convection gap can realize horizontal convection of air, so as to realize horizontal 360-degree all-round heat dissipation. With the direct convection heat dissipation of the longitudinal convection channel, the heat dissipation efficiency is effectively improved. At the same time, the heat dissipation device adopts stamping and has the advantages of simple structure and easy assembly. In addition, the utility model also provides an LED industrial and mining lamp. After using the above-mentioned cooling device, the industrial and mining lamp can effectively increase the service life, have better light efficiency, and be more reliable in use.

Description of drawings

Fig. 1 is a structural schematic diagram of the heat dissipation device of the present invention.

FIG. 2 is a perspective view of the heat dissipation unit of the heat dissipation device of the present invention.

Fig. 3 is a front view of the heat dissipation unit of the heat dissipation device of the present invention.

Fig. 4 is a main body view of the heat dissipation device of the present invention.

FIG. 5 is an enlarged schematic view of part A of FIG. 4 .

Fig. 6 is a perspective view of the LED industrial and mining lamp of the present invention.

Fig. 7 is a schematic exploded view of the structure of the LED high bay light of the present invention.

Fig. 8 is a cut-away structure schematic diagram of the heat dissipation holes and the rain shield of the end cover of the LED industrial and mining lamp of the present invention.

Reference signs include:

Support assembly--1, support plate--11, heat conduction plate--12, locking piece--2, heat dissipation unit--3, heat dissipation body--31, convection hole--32, heat sink--33, center Hole--34, connecting hole--35, inner ring convection group--36, outer ring convection group--37, heat conduction hole--38, wrapping part--381, support block--39, accommodation part- -391, embedded part--392, embedded groove--393, horizontal convection gap--41, longitudinal convection channel--42, support column--51, heat conduction column--52, heat dissipation device--6, lampshade- -7, LED module -8, end cover -9, cooling hole -91, rain shield -92.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

Referring to Fig. 1 to Fig. 5 , a heat dissipation device for a lamp includes a support assembly 1 and a locking piece 2, and several heat dissipation units 3 are sequentially stacked between the support assembly 1 and the locking piece 2. There are transverse convection gaps 41 between several heat dissipation units 3 , and the several heat dissipation units 3 have longitudinal convection channels 42 . Support column 51; the heat dissipation principle of the heat dissipation device 6 is: the support assembly 1 transfers a part of heat to the support column 51, and the support column 51 is made of metal material, such as aluminum or copper, so as to speed up heat conduction, and the other part The heat is directly conducted by the support assembly 1 to the cooling unit 3 at the bottom, and the heat is conducted upwards by the cooling unit 3 in turn. When in use, the horizontal convection of the air can be realized due to the horizontal convection gap 41, so as to realize the horizontal 360-degree omni-directional To dissipate heat, at the same time, the longitudinal convection channel 42 can further disperse the heat longitudinally to the corresponding heat dissipation unit 3, and also perform direct convection heat dissipation along with the longitudinal convection channel 42, which effectively improves the heat dissipation efficiency. At the same time, the heat dissipation device 6 adopts Stamping has the advantages of simple structure and easy assembly.

In this technical solution, the heat dissipation unit 3 includes a heat dissipation body 31, and the heat dissipation body 31 is punched with several convection holes 32 distributed in an annular shape, and one side of the several convection holes 32 has the punched-out As for the heat sink 33 , a central hole 34 and a connection hole 35 through which the support column 51 passes are opened in the middle of the heat dissipation body 31 . The longitudinal convection channel 42 is formed by a plurality of convection holes 32 combined with the cooling fins 33. When performing lateral convection, the air passes through the lateral convection gap 41. At this time, the heat on the cooling fins 33 can be taken away. When punching the convection hole 32, this solution punches and bends the corresponding part of the convection hole 32 to form a heat sink 33. In this way, compared with the existing structure, not only the heat dissipation area is increased, The heat dissipation performance is improved, and the material can be greatly saved, avoiding the traditional situation of directly washing away the material corresponding to the heat dissipation hole 91 and scrapping, and improving the utilization rate of the plate.

It should be emphasized that the shape of the heat dissipation body 31 can be circular, polygonal or quadrangular, etc., which can be realized according to actual needs.

In addition, the convection holes 32 can be quadrangular, circular, polygonal or other special-shaped holes, etc., all of which can realize this solution, and all belong to the protection scope of this solution. Here, no more examples are given here.

In this technical solution, the plurality of convection holes 32 include an inner ring convection group 36 and an outer ring convection group 37 arranged outside the inner ring convection group 36, and both sides of the convection holes 32 of the outer ring convection group 37 have The heat sink 33 formed by punching. Setting such two kinds of convection groups can improve heat dissipation and make the utilization rate of the heat dissipation body 31 higher. Since the perimeter of the convection group is larger in shape, more convection holes 32 can be provided, and larger-sized ones can also be punched out. Convection hole 32, like this, when punching out, both sides of convection hole 32 can be all punched out radiating fin 33, make it form symmetrical transverse heat dissipation passage; Only one heat sink 33 can be punched out. When the air in one direction enters the outer ring convection group 37, under the action of the two heat sinks 33, it enters the inner ring convection group 36. Because the heat sink 33 of the inner ring convection group 36 There is a certain misalignment with the position of the heat sink 33 of the convection group 37 of the outer ring, so the convective air is diverted and flows out from the other direction; of course, with the different wind directions, the heat dissipation body 31 can realize 360-degree all-round heat dissipation .

In this technical solution, in order to increase the speed of heat dissipation, the heat dissipation device 6 further includes heat conduction columns 52 for passing through several heat dissipation units 3 . That is to say, the heat dissipation device 6 utilizes a special heat conduction column 52 for heat conduction, and the heat conduction column 52 is made of copper or aluminum.

In this technical solution, the heat dissipation unit 3 is provided with a heat conduction hole 38 through which the heat conduction column 52 passes, and the heat conduction hole 38 also has an edge for covering the heat conduction column 52 formed by blanking the reverse edge Section 381. The wrapping portion 381 tightly wraps the heat conduction column 52 so that the heat conduction is better.

In this technical solution, a support block 39 is provided on the edge of the heat dissipation unit 3, and the support block 39 and the heat dissipation unit 3 are integrally stamped and formed; Next, there is a higher heat dissipation gap between the heat dissipation units 3 , that is, there is also a heat dissipation gap between the heat dissipation fins 33 and the heat dissipation units 3 on the upper layer, thereby increasing the heat dissipation speed. In this solution, there are at least three support blocks 39, so as to ensure its stability, and of course, more support blocks 39 can be further provided as required,

In order to increase the speed of assembly, in this technical solution, the support block 39 includes an accommodating portion 391 and an embedding portion 392 connected to the accommodating portion 391 , and the accommodating portion 391 is provided with a space for the embedding portion 392 Connected insert groove 393 . When assembling, use the embedding part 392 to embed in the embedding groove 393 of the previous heat dissipation unit 3, and then stack and embed in sequence, which not only makes the connection of two adjacent heat dissipation units 3 more reliable, but also makes the positioning accurate without displacement.

In this technical solution, the support assembly 1 includes a support plate 11 and a heat conduction plate 12 connected to the support plate 11, the support plate 11 and the heat conduction plate 12 are both provided with a cross guide groove, and the guide groove is provided with a The heat pipe of the LED lamp board, the heat pipe is connected with the heat conduction column.

Referring to Figures 6 to 8, the utility model also provides an LED industrial and mining lamp, which includes a lampshade 7 and an LED module 8 disposed in the lampshade 7, and also includes the heat dissipation device 6 as described above, and the heat dissipation device 6 and the The LED module 8 is connected, and the top of the heat dissipation device 6 is provided with an end cover 9 , and the end cover 9 is provided with a heat dissipation hole 91 . The LED module 8 includes a lamp board and several LED beads arranged on the lamp board, the lamp board is connected with wires for electrical connection with the outside, and the wires pass through the heat sink 6 from the end cover 9 As a result, when the high bay lamp is working, the heat dissipation device 6 is used to dissipate heat from the LED module 8, and its better heat dissipation performance can effectively improve the service life of the lamp.

In this technical solution, the outer side of the heat dissipation hole 91 is provided with a stamped and formed rain shield 92. Since the lamp is used outdoors, under the action of the rain shield 92, it can effectively prevent a large amount of rainwater from entering the interior of the lamp. , so as to ensure the normal operation of the LED mold, in order to achieve the rain-shielding effect, the included angle α between the rain-shielding plate 92 and the cooling hole 91 is 20-80 degrees. This included angle can not only realize the rain-shielding efficiency, but also can provide air intake to the heat sink 6 to improve the heat dissipation performance. Of course, as a preference, the included angle α between the rain shield 92 and the heat dissipation hole 91 is 28-35 degrees. In this way, the effect of blocking rain can be optimized, and the effect of preventing dust and foreign objects can also be realized to the maximum extent.

In addition, in order to further improve the anti-seepage effect, a protrusion is formed around the heat dissipation hole 91, that is, when the weather shield 92 is stamped, recesses are provided around the heat dissipation hole 91 at the position corresponding to the mold, so that When the cooling holes 91 are stamped and formed, the protrusions can be formed together, so that rainwater will not flow into the cooling holes 91 directly, thus improving the rain-shielding effect.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (10)

1. A heat dissipation device for a lamp, comprising a support assembly (1) and a locking piece (2), characterized in that: a number of layers are sequentially stacked between the support assembly (1) and the locking piece (2). a plurality of cooling units (3), there are transverse convection gaps (41) between the plurality of cooling units (3), the plurality of cooling units (3) have longitudinal convection channels (42), and the support assembly (1 ) is provided with a support column (51) that passes through the plurality of heat dissipation units (3) and is connected to the locking piece (2). 2. A heat dissipation device for lamps according to claim 1, characterized in that: the heat dissipation unit (3) comprises a heat dissipation body (31), and the heat dissipation body (31) is punched with several circularly distributed Convection holes (32), one side of the several convection holes (32) has the heat dissipation fins (33) formed by punching, and the middle part of the heat dissipation body (31) is provided with a central hole (34) and a supply The connecting hole (35) through which the support column (51) passes. 3. A heat dissipation device for lamps according to claim 2, characterized in that: the plurality of convection holes (32) include an inner ring convection group (36) and are arranged outside the inner ring convection group (36) The outer ring convection group (37), the two sides of the convection holes (32) of the outer ring convection group (37) have the heat sinks (33) formed by punching. 4. A heat dissipation device for a lamp according to claim 1, characterized in that: the heat dissipation device (6) further comprises a heat conduction column (52) for passing through several heat dissipation units (3). 5. A heat dissipation device for lamps according to claim 4, characterized in that: the heat dissipation unit (3) is provided with a heat conduction hole (38) through which the heat conduction column (52) passes, the The heat conduction hole (38) also has a wrapping portion (381) formed by blanking and reversed for covering the heat conduction column (52). 6. A heat dissipation device for lamps according to claim 1, characterized in that: a support block (39) is provided on the edge of the heat dissipation unit (3), and the support block (39) is connected with the heat dissipation unit ( 3) Integral stamping and forming. 7. A heat dissipation device for lamps according to claim 6, characterized in that: the support block (39) comprises a housing part (391) and an embedded part connected with the housing part (391) (392), the accommodating portion (391) is provided with an embedding groove (393) for connecting the embedding portion (392). 8. The heat dissipation device for a lamp according to claim 1, characterized in that: the support assembly (1) comprises a support plate (11) and a heat conducting plate (12) connected to the support plate (11). 9. A heat dissipation device for lamps according to claim 1, comprising a lampshade (7) and an LED module (8) arranged in the lampshade (7), characterized in that: it also includes 8. The heat sink (6) described in any one of the above, the heat sink (6) is connected to the LED module (8), the top of the heat sink (6) is provided with an end cover (9), and the end cover (9) Cooling holes (91) are provided. 10. A heat dissipation device for lamps according to claim 9, characterized in that: the outside of the heat dissipation hole (91) is provided with a stamped and formed rain shield (92), and the rain shield (92) ) and the cooling hole (91) have an angle α of 20-80 degrees.