CN112577028A - Heat dissipation device and lamp - Google Patents
Heat dissipation device and lamp Download PDFInfo
- Publication number
- CN112577028A CN112577028A CN202011568781.6A CN202011568781A CN112577028A CN 112577028 A CN112577028 A CN 112577028A CN 202011568781 A CN202011568781 A CN 202011568781A CN 112577028 A CN112577028 A CN 112577028A
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- heat
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- air
- sub
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 description 14
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S19/00—Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
- F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/717—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明公开了一种散热装置及灯具，所述散热装置包括：导热板，所述导热板用于与发热元件热交换，所述导热板具有散热区域和安装区域，所述导热板上设置有过流口，所述过流口位于所述安装区域内；多个翅片，多个所述翅片间隔设置在所述导热板上，相邻的两个翅片之间形成换热风道，所有所述翅片均位于所述散热区域内，所述换热风道的一端朝向所述安装区域；风扇，所述风扇安装在所述导热板上，所述风扇位于所述安装区域内，所述风扇用于带动气流经过所述过流口并流经所述换热风道。本发明的散热装置通过设置风扇，在风扇转动的情况下，可以增加风量并强制对流，起到更好的散热效果。
The invention discloses a heat dissipation device and a lamp. The heat dissipation device comprises: a heat conduction plate, the heat conduction plate is used for heat exchange with a heating element, the heat conduction plate has a heat dissipation area and an installation area, and the heat conduction plate is provided with a heat dissipation area. an overflow port, the overflow port is located in the installation area; a plurality of fins are arranged on the heat conduction plate at intervals, and a heat exchange air duct is formed between two adjacent fins , all the fins are located in the heat dissipation area, and one end of the heat exchange air duct faces the installation area; the fan is installed on the heat conduction plate, and the fan is located in the installation area , the fan is used to drive the air flow through the overflow port and through the heat exchange air duct. The heat dissipation device of the present invention is provided with a fan, and when the fan rotates, the air volume can be increased and convection can be forced, thereby achieving better heat dissipation effect.
Description
Technical Field
The invention relates to the technical field of lamps, in particular to a heat dissipation device and a lamp.
Background
Heat dissipation has always been a major factor affecting the performance of the lamp, especially for the lamp with high heat dissipation, the high temperature may cause serious damage to the equipment or product. The design methods pursued in heat dissipation products are generally classified into three categories, natural cooling, air cooling, cooling by media such as refrigerant, water cooling, and the like. In various cooling methods, engineers also have a design of cooling medium and air cooling, natural cooling and air cooling, and so on. However, the existing air cooling mode is unreasonable in design, so that the heat dissipation effect of the lamp is poor.
Disclosure of Invention
In order to solve the technical problem, the invention discloses a heat dissipation device and a lamp, and solves the problem that the existing lamp is poor in heat dissipation effect.
According to an aspect of the present invention, there is disclosed a heat dissipating device comprising: the heat conduction plate is used for exchanging heat with a heating element and is provided with a heat dissipation area and a mounting area, and an overflowing port is arranged on the heat conduction plate and is positioned in the mounting area; the fins are arranged on the heat conducting plate at intervals, a heat exchange air channel is formed between every two adjacent fins, all the fins are located in the heat dissipation area, and one end of the heat exchange air channel faces the installation area; the fan is installed on the heat-conducting plate and located in the installation area, and the fan is used for driving airflow to pass through the flow-through opening and flow through the heat exchange air channel.
Further, still include: the air guide structure is installed on the heat-conducting plate and corresponds to the installation area, an air guide channel is formed between the air guide structure and the heat-conducting plate, the heat exchange air channel is communicated with the air guide channel, and the overflowing port is communicated with the heat exchange air channel through the air guide channel.
Further, the air guide structure is a driving motor of the fan.
Furthermore, the air guide structure is an air guide plate.
Further, the fins are radially distributed with the mounting area as a center.
Further, the fin includes at least two sub-fins having first ends facing the mounting area and second ends facing away from the mounting area; the first ends of all the sub-fins are close to each other, and the second ends of all the sub-fins are far away from each other.
Further, the first ends of the sub-fins are connected.
Further, the fin further comprises a bent part, the bent part is arranged at the second end of the sub-fin, and an included angle is formed between the bent part and the sub-fin.
According to another aspect of the invention, a lamp is disclosed, which comprises the heat dissipation device.
Further, still include: a bulb mounted on the heat conductive plate.
Further, the heat conducting plate is provided with a first side face and a second side face which are opposite, the bulb is located on the first side face, and the fins are located on the second side face.
The heat dissipation device provided by the invention has the advantages that the fan is arranged, under the condition that the fan rotates, the air quantity can be increased, the convection is forced, the air flow passes through the heat exchange air channel, and the heat in the heat exchange air channel is taken away, so that the temperature of the fins is reduced, the temperature difference is generated due to the temperature reduction of the fins, the heat is transferred to the low-temperature direction, the heat on the heat conduction plate can be transferred to the fins more quickly, the heat dissipation is carried out with high efficiency, the natural cooling and the air cooling are combined, and the better heat dissipation effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation device according to an embodiment of the invention;
FIG. 2 is an enlarged view of a portion of a heat sink in accordance with an embodiment of the present invention;
FIG. 3 is a perspective view of a heat sink in accordance with an embodiment of the present invention;
legend: 10. a heat conducting plate; 11. a flow-through port; 20. a fin; 21. a sub-fin; 22. a bending section; 30. a fan; 40. a wind guide structure; 50. a drive device; 60. a heat exchange air duct;
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
As shown in fig. 1 to 3, the present invention discloses a heat dissipating device, including: the heat conduction plate 10 is used for exchanging heat with a heating element, the heat conduction plate 10 is provided with a heat dissipation area and a mounting area, the heat conduction plate 10 is provided with a flow-through opening 11, and the flow-through opening 11 is positioned in the mounting area; the plurality of fins 20 are arranged on the heat conducting plate 10 at intervals, a heat exchange air duct 60 is formed between every two adjacent fins 20, all the fins 20 are positioned in the heat dissipation area, and one end of the heat exchange air duct 60 faces the installation area; the fan 30 is installed on the heat conducting plate 10, the fan 30 is located in the installation area, and the fan 30 is used for driving the air flow to pass through the flow-through opening 11 and flow through the heat exchanging air duct. The heat dissipation device provided by the invention has the advantages that the fan is arranged, under the condition that the fan rotates, the air quantity can be increased, the convection is forced, the air flow passes through the heat exchange air channel, and the heat in the heat exchange air channel is taken away, so that the temperature of the fins is reduced, the temperature difference is generated due to the temperature reduction of the fins, the heat is transferred to the low-temperature direction, the heat on the heat conduction plate can be transferred to the fins more quickly, the heat dissipation is carried out with high efficiency, the natural cooling and the air cooling are combined, and the better heat dissipation effect is achieved.
It should be noted that, in order to reduce the flow resistance of the air flow, the fan 30 is disposed at the position of the flow-through opening, and the flow direction of the air flow may flow from the flow-through opening 11 to the heat exchange air duct 60, or may flow from the heat exchange air duct 60 to the flow-through opening, because in any direction, the heat in the heat exchange air duct 60 can be taken away.
In an implementation that is not shown, the fan 30 may be a centrifugal fan, when the centrifugal fan is used, the fan 30 corresponds to the flow passing opening 11, and when the fan rotates, the airflow enters from the flow passing opening 11 and flows to the heat exchange air duct 60 around, so as to take away heat in the heat exchange air duct 60, thereby improving the heat dissipation effect.
In the embodiment shown in fig. 3, the heat exchanger further includes a wind guiding structure 40, the wind guiding structure 40 is mounted on the heat conducting plate 10 and corresponds to the mounting area, a wind guiding channel is formed between the wind guiding structure 40 and the heat conducting plate 10, the heat exchanging air channels 60 are all communicated with the wind guiding channel, and the flow passing port 11 is communicated with the heat exchanging air channels 60 through the wind guiding channel. The heat dissipation device can form a wind guide channel between the wind guide structure and the heat conduction plate by arranging the wind guide structure, and the overflowing port and the heat exchange air channel are communicated through the wind guide channel, so that air flow can flow from the overflowing port to the heat exchange air channel or from the heat exchange air channel to the overflowing port under the driving of the fan, thereby taking away heat in the heat exchange air channel, realizing forced convection and improving the heat dissipation effect.
In the above embodiment, the air guiding structure 40 is a driving motor of the fan 30. Taking an axial fan as an example, the position of the driving motor is just matched with the heat conducting plate to form an air guide channel, when the driving motor drives the fan to rotate, external air flow continuously enters the air guide channel from the overflowing opening, the air flow blown out by the fan is firstly blown to the driving motor and then is guided to the heat exchange air channels around through the driving motor, so that heat in the heat exchange air channels is taken away, forced heat exchange is realized, and meanwhile. The heat dissipation device provided by the invention has the advantages that the driving motor of the fan is used as the guide device, so that the fan can be driven to rotate, wind guiding can be realized, the structure is simplified, the cost is reduced, and the heat dissipation device belongs to dual purposes.
In the above embodiment, the wind guiding structure 40 is a wind guiding plate. When the fan adopts the integrated fan, the air deflector can be used as an air guide structure, and the heat dissipation device can reduce the space occupied by the heat dissipation device by adopting the integrated fan and the air deflector.
In the above embodiment, the fins 20 are radially distributed with the mounting area as the center, preferably, the heat conducting plate 10 is circular, the overflowing port 11 is arranged at the center of the heat conducting plate 10, and the fins 20 are circumferentially distributed with the overflowing port 11 as the center, and the distribution mode of the fins can maximize the space utilization, so that the number of the arranged fins is the largest, the formed heat exchange air channel is the largest, the heat exchange area can be maximized, and the heat exchange effect is greatly improved.
As shown in fig. 2, which is a partial enlarged view of a portion a in fig. 1, and mainly enlarges the specific structure of the fin 20 in fig. 2, it can be seen that the fin 20 includes at least two sub-fins 21, and the sub-fins 21 have first ends facing toward the mounting area and second ends facing away from the mounting area; the first ends of all the sub-fins 21 are close to each other and the second ends of all the sub-fins 21 are distant from each other. The radiating device is provided with the sub-fins, one ends of the sub-fins are equivalently branched to form the two sub-fins, so that the surface area of the fins can be increased, and the extra space is not occupied, so that the contact area between the fins and air is increased, and the heat exchange effect is improved. For ease of installation, the first ends of the sub-fins 21 are connected.
In the above embodiment, the fin 20 further includes a bent portion 22, the bent portion 22 is disposed at the second end of the sub-fin 21, and an included angle is formed between the bent portion 22 and the sub-fin 21. The heat dissipation device can prolong the length of the sub-fins by arranging the bent parts, thereby increasing the heat exchange area of the sub-fins and improving the heat exchange effect.
In another embodiment of the invention, a lamp is further disclosed, which comprises the heat dissipation device. In the above embodiment, a bulb is further included, and the bulb is mounted on the heat conductive plate 10. Specifically, the heat-conducting plate 10 has first and second opposite side surfaces, the bulb being located on the first side surface, and the fins 20 being located on the second side surface. During the use, the first side of heat-conducting plate is the service face of lamps and lanterns, and the bulb is installed on the heat-conducting plate and towards the direction that needs the illumination, and fin, fan and drive arrangement then install on the second side opposite with first side, and the back is opened to the fan, and the air current passes through the wind-guiding passageway that the discharge orifice got into the second side from the first side at bulb place, then flows to in the heat transfer wind channel all around, takes away the heat in the heat transfer wind channel to realize forced convection cooling, improve the heat transfer effect.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (11)
1. A heat dissipating device, comprising:
the heat conduction plate (10), the heat conduction plate (10) is used for exchanging heat with a heating element, the heat conduction plate (10) is provided with a heat dissipation area and a mounting area, the heat conduction plate (10) is provided with an overflowing opening (11), and the overflowing opening (11) is positioned in the mounting area;
the heat conducting plate (10) is provided with a plurality of fins (20), the fins (20) are arranged on the heat conducting plate (10) at intervals, a heat exchange air channel (60) is formed between every two adjacent fins (20), all the fins (20) are located in the heat dissipation area, and one end of the heat exchange air channel (60) faces the installation area;
the fan (30), the fan (30) is installed on the heat-conducting plate (10), the fan (30) are located in the installation region, the fan (30) are used for driving the air current to pass through the overflowing opening (11) and flow through the heat exchange air duct.
2. The heat dissipating device of claim 1, further comprising:
air-guiding structure (40), air-guiding structure (40) are installed on heat-conducting plate (10) and with the installation area is corresponding, air-guiding structure (40) with form the wind-guiding passageway between heat-conducting plate (10), heat transfer wind channel (60) all with the wind-guiding passageway intercommunication, overflow mouth (11) pass through the wind-guiding passageway with heat transfer wind channel (60) intercommunication.
3. The heat dissipating device of claim 2,
the air guide structure (40) is a driving motor of the fan (30).
4. The heat dissipating device of claim 2,
the air guide structure (40) is an air guide plate.
5. The heat dissipating device of claim 1,
the fins (20) are radially distributed with the mounting area as a center.
6. The heat dissipating device of claim 1,
the fin (20) comprises at least two sub-fins (21), the sub-fins (21) having a first end facing the mounting area and a second end facing away from the mounting area;
the first ends of all the sub-fins (21) are close to each other, and the second ends of all the sub-fins (21) are far away from each other.
7. The heat dissipating device of claim 6,
the first ends of the subfins (21) are connected.
8. The heat dissipating device of claim 6,
the fin (20) further comprises a bending part (22), the bending part (22) is arranged at the second end of the sub-fin (21), and an included angle is formed between the bending part (22) and the sub-fin (21).
9. A luminaire comprising a heat sink as claimed in any one of claims 1 to 8.
10. The luminaire of claim 9, further comprising:
a bulb mounted on the heat-conducting plate (10).
11. The luminaire of claim 9,
the heat-conducting plate (10) is provided with a first side face and a second side face which are opposite to each other, the bulb is located on the first side face, and the fins (20) are located on the second side face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568781.6A CN112577028A (en) | 2020-12-25 | 2020-12-25 | Heat dissipation device and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568781.6A CN112577028A (en) | 2020-12-25 | 2020-12-25 | Heat dissipation device and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577028A true CN112577028A (en) | 2021-03-30 |
Family
ID=75139853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011568781.6A Pending CN112577028A (en) | 2020-12-25 | 2020-12-25 | Heat dissipation device and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112577028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520153A (en) * | 2021-07-21 | 2021-10-22 | 珠海格力电器股份有限公司 | Heat dissipation piece, cooking utensil lid and cooking utensil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202791912U (en) * | 2012-09-28 | 2013-03-13 | 四川新力光源股份有限公司 | Heat dissipation device applied to light-emitting diode (LED) lamp |
| CN103644552A (en) * | 2013-12-11 | 2014-03-19 | 周安平 | Air cooling and radiating device of LED lamp |
| CN105805565A (en) * | 2016-02-02 | 2016-07-27 | 广州南科集成电子有限公司 | LED light power supply assembly and LED lamp |
| CN210861023U (en) * | 2019-08-19 | 2020-06-26 | 上海朗力照明有限公司 | LED lamp radiator |
| CN212132068U (en) * | 2020-05-21 | 2020-12-11 | 深圳市爱图仕影像器材有限公司 | Lamp fitting |
| CN212132092U (en) * | 2020-05-14 | 2020-12-11 | 深圳市爱图仕影像器材有限公司 | Lamp set |
| CN214468495U (en) * | 2020-12-25 | 2021-10-22 | 珠海格力电器股份有限公司 | Heat dissipation device and lamp |
-
2020
- 2020-12-25 CN CN202011568781.6A patent/CN112577028A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202791912U (en) * | 2012-09-28 | 2013-03-13 | 四川新力光源股份有限公司 | Heat dissipation device applied to light-emitting diode (LED) lamp |
| CN103644552A (en) * | 2013-12-11 | 2014-03-19 | 周安平 | Air cooling and radiating device of LED lamp |
| CN105805565A (en) * | 2016-02-02 | 2016-07-27 | 广州南科集成电子有限公司 | LED light power supply assembly and LED lamp |
| CN210861023U (en) * | 2019-08-19 | 2020-06-26 | 上海朗力照明有限公司 | LED lamp radiator |
| CN212132092U (en) * | 2020-05-14 | 2020-12-11 | 深圳市爱图仕影像器材有限公司 | Lamp set |
| CN212132068U (en) * | 2020-05-21 | 2020-12-11 | 深圳市爱图仕影像器材有限公司 | Lamp fitting |
| CN214468495U (en) * | 2020-12-25 | 2021-10-22 | 珠海格力电器股份有限公司 | Heat dissipation device and lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520153A (en) * | 2021-07-21 | 2021-10-22 | 珠海格力电器股份有限公司 | Heat dissipation piece, cooking utensil lid and cooking utensil |
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