CN219828770U - Radiator and panel light - Google Patents

Abstract

The utility model relates to a radiator and a panel light, and belongs to the technical field of photographic equipment. The radiator comprises a base plate, radiating fins and a radiating fan. The radiating fins are connected to one surface of the base plate, the radiating fins are arranged along a first direction, and the radiating fins are arranged at intervals along a second direction perpendicular to the first direction. The interval between the two radiating fins forms a radiating air channel; the radiating fins are provided with slits. And a fan installation position is arranged on one side of the radiating fins, which is far away from the base plate, the fan installation position is communicated with the radiating air duct to form an air inlet, and the tail ends of two adjacent radiating fins form an air outlet of the radiating air duct. The cooling fan is arranged on the fan installation position, and air flow generated by the cooling fan flows into the cooling air duct from the air inlet and flows out from the air outlet. The radiator solves the technical problem that the radiating effect of the traditional radiator is poor.

Description

Radiator and panel light

Technical Field

The utility model relates to the technical field of photographic equipment, in particular to a radiator and a panel light.

Background

In the existing indoor photography and video-shooting scenes such as living broadcasting rooms, studio and the like, the LED panel lamps are often required to be used for illumination, so that in order to achieve a better illumination effect, the power of the LED panel lamps is higher and higher nowadays, and along with the improvement of the power of the LED panel lamps, the heat emitted by the LED panel lamps is larger and larger.

The traditional LED panel lamp has poor heat dissipation effect, and the chip in the traditional LED panel lamp often triggers thermal protection to cause that the LED lamp cannot be used because of overhigh temperature. Therefore, in order to ensure that the LED panel lamp can continuously illuminate, a radiator on the LED panel lamp is required to timely discharge heat on the lamp panel.

Disclosure of Invention

The utility model aims to solve the technical problem of poor heat dissipation effect of the traditional heat radiator.

In order to solve the above technical problems, the present utility model provides a heat sink, comprising: a substrate; the radiating fins are connected to one surface of the base plate, are arranged along a first direction, are arranged at intervals along a second direction perpendicular to the first direction, and form a radiating air channel at intervals between two radiating fins, and are provided with slits; a fan installation position is arranged on one side, far away from the base plate, of each radiating fin, the fan installation position is communicated with the radiating air duct to form an air inlet, and the tail ends of two adjacent radiating fins form an air outlet of the radiating air duct; and the cooling fan is arranged on the fan installation position, and air flow generated by the cooling fan flows into the cooling air duct from the air inlet and then flows out from the air outlet.

Optionally, the slit comprises a long slit and/or a short slit, the long slit and the short slit are different in size, the long slit and/or the short slit are located at two sides of the fan installation position, and the slit communicates two adjacent heat dissipation air ducts and enables the heat dissipation air ducts to communicate with an external space.

Optionally, the positions of the long slits or the short slits on the plurality of radiating fins are corresponding, the plurality of corresponding long slits or short slits form a through groove, and the extending direction of the through groove is perpendicular to the extending direction of the radiating air duct.

Optionally, the heat dissipation fins are provided with two long slits, and the two long slits on each heat dissipation fin are respectively arranged at two sides of the fan installation position, so that a row of through grooves are respectively formed at two sides of the heat dissipation fan.

Optionally, each radiating fin is provided with four short slits, and two sides of a fan installation position on each radiating fin are respectively provided with two short slits, so that two rows of through grooves are respectively formed on two sides of the radiating fan.

Optionally, the number of the slits on the two adjacent heat dissipation fins is different, and the positions of the slits on the two adjacent heat dissipation fins are staggered.

Optionally, the heat dissipation fins include two types, wherein one heat dissipation fin is provided with two long slits, and the other heat dissipation fin is provided with four short slits; in the second direction of the base plate, the two radiating fins are alternately arranged, so that the long slits and the short slits on the two adjacent radiating fins are staggered.

Optionally, the length of the long seam is 18mm-22mm; the length of the short seam is 13mm-17mm.

Optionally, the heat radiator further comprises a top plate, wherein the top plate is arranged on the top surface of the heat radiating fins, and the top plate is used for sealing the top cover of the heat radiating air duct formed by two adjacent heat radiating fins.

The utility model also provides a panel light comprising: the radiator; the lamp panel is arranged on one side, away from the radiating fins, of the base plate of the radiator; the circuit board is arranged on one side of the fin, which is far away from the base plate, and is electrically connected with the lamp panel and controls the on-off of the lamp panel.

According to the technical scheme, the beneficial effects of the utility model are as follows:

the utility model provides a radiator, which comprises a base plate, radiating fins and a radiating fan. The radiating fins are connected to one surface of the base plate, the radiating fins are arranged along a first direction, and the radiating fins are arranged at intervals along a second direction perpendicular to the first direction. The interval between the two radiating fins forms a radiating air channel; the radiating fins are provided with slots, the radiating fins are provided with fan installation positions, the fan installation positions are communicated with the radiating air channels to form air inlets, and the tail ends of two adjacent radiating fins form air outlets of the radiating air channels. The cooling fan is arranged on the fan installation position, and air flow generated by the cooling fan flows into the cooling air duct from the air inlet and flows out from the air outlet.

The radiating fins are provided with the slits, and the contact between the air and the side walls of the radiating fins in the flowing process of the air in the radiating air duct is reduced by the slits of the radiating fins. The air flow resistance in the whole radiator can be effectively reduced, the flow velocity of air between the radiating fins of the radiator is improved, and therefore heat in the radiating air duct is discharged out of the radiator along with air flow more quickly, and the radiating performance of the radiator is improved.

Drawings

Fig. 1 is a schematic perspective view of a radiator according to a first embodiment;

FIG. 2 is a schematic top view of the heat sink of FIG. 1;

FIG. 3 is a schematic diagram illustrating the airflow direction of a heat dissipation duct of the heat dissipation device of FIG. 1;

fig. 4 is a schematic perspective view of a radiator according to a second embodiment;

FIG. 5 is a schematic top view of the heat sink of FIG. 4;

FIG. 6 is a schematic diagram illustrating the airflow direction of a heat dissipation duct of the heat dissipation device of FIG. 4;

fig. 7 is a schematic perspective view of a radiator according to a third embodiment;

FIG. 8 is a schematic top view of the heat sink of FIG. 7;

FIG. 9 is a schematic diagram illustrating the airflow direction of a heat dissipation duct of the heat dissipation device of FIG. 7;

FIG. 10 is a schematic perspective view of a panel light at an angle;

FIG. 11 is a schematic perspective view of a panel light at another angle;

fig. 12 is a schematic side view of the panel light of fig. 10.

The reference numerals are explained as follows: 100. a heat sink; 110. a substrate; 120. a heat radiation fin; 121. a slit; 1211. a through groove; 1212. a long slit; 1213. a short slit; 122. a heat dissipation air duct; 123. a fan mounting position; 124. a top plate; 130. a heat radiation fan; 200. a panel light; 210. a lamp panel; 220. a circuit board.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that in the embodiments shown in the drawings, indications of directions or positional relationships (such as up, down, left, right, front, rear, etc.) are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

Referring to fig. 1 to 3, the present utility model discloses a heat sink 100, which includes a substrate 110, a heat dissipation fin 120 and a heat dissipation fan 130. The heat dissipation fins 120 are disposed on the upper surface of the base plate 110, and the heat dissipation fan 130 is disposed above the heat dissipation fins 120. By forming the slits 121 on the heat dissipation fins 120, the resistance of the air flow generated by the heat dissipation fan 130 in the heat dissipation fins 120 is reduced, so as to increase the air flow speed and improve the heat dissipation effect.

Referring to fig. 1, the heat dissipation fins 120 are connected to the base plate 110, the heat dissipation fins 120 are disposed along a first direction, and the plurality of heat dissipation fins 120 are spaced apart along a second direction perpendicular to the first direction. The space between the two heat radiating fins 120 constitutes a heat radiating air passage 122. In this embodiment, the substrate 110 is rectangular, the first direction is the length direction of the substrate 110, and the second direction is the width direction of the substrate.

Each radiating fin 120 is provided with a slit 121, and the slits 121 are communicated with two adjacent radiating air channels 122. Each of the heat dissipation fins 120 is formed with a recess portion recessed toward the direction of the base plate 110, and the recess portions of the plurality of heat dissipation fins 120 are located correspondingly in the width direction of the base plate 110 to form a fan mounting position 123 together. The fan mounting position 123 is communicated with the heat dissipation air duct 122 to form an air inlet, and the tail ends of the two adjacent heat dissipation fins 120 form an air outlet of the heat dissipation air duct 122.

The heat dissipation fan 130 is disposed on the fan mounting position 123, and the heat dissipation fan 130 generates an air flow flowing in from the air inlets at two sides of the fan mounting position 123 and flowing out from the air outlet of the heat dissipation air duct 122 to carry out heat in the heat sink 100.

In this embodiment, the middle portion of the heat dissipation fin 120 is recessed along the direction of the substrate 110 to form a recess, which can facilitate the installation of the heat dissipation fan 130. And the air flow generated by the heat radiation fan 130 can more conveniently enter the heat radiation air duct 122 through the concave of the heat radiation fins 120. It should be understood that the portion below the recess is also a part of the heat dissipation fin 120, and the heat dissipation air channel 122 is also provided between the recess and the heat dissipation air channel 122 below the heat dissipation fan 130, and the heat dissipation air channels 122 on both sides of the heat dissipation fan 130 are mutually communicated, so that the heat on the substrate 110 can be quickly taken away.

The heat dissipation fans 130 of the present embodiment are provided in plurality, and the plurality of heat dissipation fans 130 are disposed side by side along the width direction of the substrate 110. The heat radiation fan 130 is inserted into the middle position of the heat radiation fin 120. The lengths of the heat dissipation air channels 122 at both ends of the heat dissipation fan 130 are the same, so that the air flow speeds flowing out from both sides of the heat dissipation fan 130 are the same. The heat dissipation fan 130 sucks air flow from the top, enters the heat dissipation air duct 122 from the air inlets at the side surfaces of the heat dissipation fan 130, and then flows out from the air outlets at the two sides of the heat dissipation fin 120 to take out heat on the heat dissipation fin.

In some embodiments, the heat sink 100 further includes a top plate 124, where the top plate 124 is disposed on the top surface of the heat dissipation fins 120, and the top plate 124 is used to cover the top of the heat dissipation air channels 122 formed by two adjacent heat dissipation fins 120.

The top plate 124 covers the top of the heat dissipation air channel 122 formed by the heat dissipation fins 120, so that the air flow generated by the heat dissipation fan 130 can flow out along two sides of the heat sink 100. The top plate 124 may also be used as a mounting base for the circuit board 220, and the circuit board 220 is fixed to the top plate 124 by bolts.

It should be understood that the slits 121 in this embodiment cut the heat dissipation fins 120 and cut the top plate 124 corresponding to the tops thereof.

Referring to fig. 1 to 3, a single slit 121 completely bisects a single fin 120 to reduce the flow distance of air flow in the length direction of the fin 120. I.e., reduces contact of air with the sidewalls of the heat dissipation fins 120 during the flow of air in the heat dissipation air path 122. The air flow resistance inside the entire radiator 100 can be effectively reduced, and the flow rate of air between the radiating fins 120 of the radiator 100 can be increased, thereby increasing the inflow amount of air and improving the heat radiation performance.

Simultaneously, the slits 121 arranged on the radiating fins 120 communicate the two adjacent radiating air channels 122, so that air between different radiating fins 120 can be driven to flow, the air flow of the radiating air channels 122 between the radiating fins 120 is enabled to exchange heat, the temperature uniformity of the whole radiator 100 is improved, and the radiating effect is further improved.

Each of the heat dissipation fins 120 is provided with a plurality of slits 121, and positions of the slits 121 on the plurality of heat dissipation fins 120 correspond to each other in the width direction of the base plate 110. The slits 121 corresponding to the positions of the plurality of heat dissipation fins 120 form a plurality of rows of through grooves 1211, and the extending direction of the through grooves 1211 is perpendicular to the extending direction of the heat dissipation air duct 122.

In some embodiments, the slots 121 are divided into long slots 1212 and short slots 1213 due to the different sizes.

Referring to fig. 2 and 3, in the present embodiment, the heat dissipation fin 120 is provided with two long slits 1212. Two long slits 1212 on each fin 120 are disposed on both sides of the fan mounting portion 123, respectively, such that each side of the cooling fan 130 corresponds to one long slit 1212. The positions of the long slits 1212 on the adjacent fins correspond to each other, so that the long slits 1212 are arranged to form two rows of through grooves 1211 perpendicular to the extending direction of the heat dissipation air duct 122.

Referring to fig. 1, two through grooves 1211 in the present embodiment divide the heat dissipation fins 120 into three parts along the width direction of the base plate 110, and each heat dissipation air channel 122 communicates with the external space through the through grooves 1211. And the distance between the two through grooves 1211 and the heat radiation fan 130 is the same, ensuring that the air flows on both sides are the same.

In this embodiment, the length of the long slit 1212 is 18mm-22mm.

In the case of using the heat dissipating fan 130 with the same power, the heat dissipating device 100 with the long slit 1212 in the present embodiment has increased air inflow compared to the conventional heat dissipating device, and greatly improves the heat dissipating effect.

Example two

Referring to fig. 4 to 6, the present embodiment also provides a heat sink 100, which is different from the heat sink 100 of the first embodiment mainly in that: the heat dissipation fin 120 in the present embodiment is provided with four short slits 1213, and four through slots 1211 are correspondingly formed in the four short slits 1213.

Specifically, the heat dissipation fins 120 are provided with four short slits 1213, and two short slits 1213 are respectively provided on two sides of the fan mounting position 123 on each heat dissipation fin 120, so that two rows of through grooves 1211 are respectively formed on two sides of the heat dissipation fan 130.

Referring to fig. 4, the heat dissipation fins 120 are formed with four through slots 1211 formed in the corresponding short slits 1213, which are respectively located at two sides of the heat dissipation fan 130, and the four through slots 1211 divide the heat dissipation fins 120 into five parts.

The short slit 1213 in this embodiment has a length of 13mm-17mm.

Two through grooves 1211 are formed at each side of the heat radiation fan 130, and the width of the through grooves 1211 is the same as the length of the short slits 1213, so that the heat sink 100 has a lighter weight, and the heat sink 100 can be more conveniently installed.

In addition, the positions of the slits 121 on the adjacent heat dissipation fins 120 in the first embodiment and the second embodiment correspond to each other, that is, the slits 121 of the adjacent heat dissipation fins 120 are aligned with each other, so that the slits 121 are more convenient and quick to manufacture and the production cost can be saved.

Example III

The present embodiment provides a heat sink 100, which is mainly different from the first embodiment in that: the number of the slits 121 provided on the heat radiating fin 120 is different, and the relative positions of the slits 121 are different.

Referring to fig. 7 to 9, the heat sink 100 of the present embodiment has different numbers of slits 121 formed in two adjacent heat dissipation fins 120, and the positions of the slits 121 formed in the two adjacent heat dissipation fins 120 are staggered.

Specifically, the heat radiating fins 120 include two kinds, and the structures of the two kinds of heat radiating fins 120 are substantially the same except that the number and the size of the slits 121 provided thereon are different.

One of the fins 120 has two long slits 1212; another fin 120 is provided with four short slits 1213. The two heat dissipation fins 120 are alternately arranged in the width direction of the base plate 110, and long slits 1212 and short slits 1213 on the heat dissipation fins 120 are uniformly distributed on both sides of the heat dissipation fan 130, so that the number of the long slits 1212 and the short slits 1213 on both sides of the heat dissipation fan 130 of each heat dissipation fin 120 is the same.

As shown in fig. 7 and 9, the heat radiating fins 120 provided with two long slits 1212 and the heat radiating fins 120 provided with four short slits 1213 are alternately arranged, and the long slits 1212 and the short slits 1213 on adjacent heat radiating fins 120 are offset from each other.

The present embodiment corresponds to the alternate arrangement of the heat radiating fins 120 in the first embodiment and the heat radiating fins 120 in the second embodiment, and the slit positions of the adjacent heat radiating fins 120 are shifted.

It will be appreciated that the number and length of the slots 121 provided in the fin 120 may be adjusted according to the length of the fin 120.

The heat dissipation fins 120 with different numbers of the slits 121 are alternately arranged, and the slit positions of the adjacent heat dissipation fins 120 are staggered, so that the gas communication between different heat dissipation air channels 122 can be further enhanced, the heat exchange between the heat dissipation fins 120 is quickened, the temperature uniformity of the radiator 100 is further improved, and the heat dissipation effect is improved. In addition, the arrangement of the slits 121 in the present embodiment gives consideration to both the heat dissipation effect and the product weight, and has better overall performance than the heat sink 100 in the first and second embodiments.

Referring to fig. 10 to 12, the present utility model further provides a panel light 200.

The panel light 200 includes the heat sink 100, the light panel 210, and the circuit board 220 of any of the above. The lamp panel 210 is disposed on a side of the base plate 110 of the heat sink 100 facing away from the heat dissipation fins 120. The circuit board 220 is disposed on a side of the heat dissipation fins 120 away from the substrate 110, and the circuit board 220 is electrically connected to the lamp panel 210 and controls on/off of the lamp panel 210.

Specifically, the light plate 210 is an LED light, and is clamped with the edge of the substrate 110, so that detachable connection is realized, and the light plate 210 can be conveniently detached and replaced. The circuit board 220 is a PCB board, on which a plurality of control elements are disposed for controlling the lamp panel 210. The circuit board 220 in the present embodiment is fixed to the top plate 124 of the heat sink 100 by bolts, so that the circuit board 220 is fixed to both sides of the heat dissipation fan 130 of the heat sink 100.

The heat on the lamp panel 210 is transferred to the heat radiating fins 120 through the base plate 110 connected with the lamp panel, and the heat is carried out by the air flow in the heat radiating air duct 122. Heat on the circuit board 220 is transferred to the heat dissipating fins 120 through the top plate 124, and is carried out by the air flow in the heat dissipating air duct 122.

The heat dissipation fins 120 on the panel light 200 are provided with the slits 121, so that the contact between air and the side walls of the fins in the process of flowing in the heat dissipation air duct 122 can be reduced, the air flowing resistance in the whole radiator 100 can be effectively reduced, the flow velocity of the air between the heat dissipation fins 120 of the radiator 100 can be improved, the air inflow can be increased, and the heat dissipation performance can be improved. Simultaneously, the slits 121 arranged on the fins communicate the two adjacent radiating air channels 122, so that air between different radiating fins 120 can be driven to flow, the air flow of the radiating air channels 122 between the radiating fins 120 is enabled to exchange heat, the temperature uniformity of the whole radiator 100 is improved, and the radiating performance is further improved. The temperature of the lamp panel 210 and the circuit board 220 can be effectively reduced, so that heat of the lamp panel and the circuit board 220 can be discharged in time, and the problem that the lamp panel 210 cannot be used due to thermal protection is prevented.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A heat sink, comprising:

a substrate;

the radiating fins are connected to one surface of the base plate, extend along a first direction, are arranged at intervals along a second direction perpendicular to the first direction, form a radiating air channel at intervals between two radiating fins, and are provided with slits; a fan installation position is arranged on one side, far away from the base plate, of each radiating fin, the fan installation position is communicated with the radiating air duct to form an air inlet, and the tail ends of two adjacent radiating fins form an air outlet of the radiating air duct;

and the cooling fan is arranged on the fan installation position, and air flow generated by the cooling fan flows into the cooling air duct from the air inlet and then flows out from the air outlet.

2. The heat sink of claim 1, wherein the slot comprises a long slot and/or a short slot, the long slot and the short slot being sized differently, the long slot and/or the short slot being located on both sides of the fan mounting location, the slot communicating adjacent two of the heat dissipation air channels and the heat dissipation air channels with an external space.

3. The heat sink according to claim 2, wherein the long slits or the short slits on the plurality of heat radiating fins are positioned in correspondence, and the plurality of corresponding long slits or short slits form a through groove, and an extending direction of the through groove is perpendicular to an extending direction of the heat radiating air duct.

4. A radiator according to claim 3, wherein the heat radiating fins are provided with two long slits, and the two long slits on each heat radiating fin are respectively arranged at two sides of the fan mounting position, so that two sides of the heat radiating fan respectively form a row of through grooves.

5. A radiator according to claim 3, wherein each radiating fin is provided with four short slits, and two short slits are respectively arranged on two sides of a fan mounting position on each radiating fin, so that two rows of through grooves are respectively formed on two sides of the radiating fan.

6. The heat sink according to claim 2, wherein the number of the slits on the adjacent two heat radiating fins is different, and the positions of the slits on the adjacent two heat radiating fins are staggered from each other.

7. The heat sink of claim 6, wherein the heat dissipating fins comprise two kinds, wherein one of the heat dissipating fins is provided with two long slits, and the other heat dissipating fin is provided with four short slits; in the second direction of the base plate, the two radiating fins are alternately arranged, so that the long slits and the short slits on the two adjacent radiating fins are staggered.

8. The heat sink of claim 2 wherein the long slot length is 18mm-22mm; the length of the short seam is 13mm-17mm.

9. The heat sink of claim 1, further comprising a top plate disposed on a top surface of the heat dissipating fins, the top plate for capping a top of the heat dissipating air channel formed by two adjacent heat dissipating fins.

10. A panel light, comprising:

the heat sink of any one of claims 1-9;

the lamp panel is arranged on one side, away from the radiating fins, of the base plate of the radiator;

the circuit board is arranged on one side of the fin, which is far away from the base plate, and is electrically connected with the lamp panel and controls the on-off of the lamp panel.