CN112648563A - Novel interior radiating plant lamp in wind channel - Google Patents

Novel interior radiating plant lamp in wind channel Download PDF

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Publication number
CN112648563A
CN112648563A CN202011622782.4A CN202011622782A CN112648563A CN 112648563 A CN112648563 A CN 112648563A CN 202011622782 A CN202011622782 A CN 202011622782A CN 112648563 A CN112648563 A CN 112648563A
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China
Prior art keywords
heat dissipation
central axis
fin
air
lamp
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CN202011622782.4A
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Chinese (zh)
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CN112648563B (en
Inventor
王亚停
伍婵娟
曾亮
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Fujian Sanan Sino Science Photobiotech Co Ltd
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Fujian Sanan Sino Science Photobiotech Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
    • A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V29/677—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 discharging
    • 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
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to the field of lighting lamps, and discloses a novel plant lamp with an internal air duct for heat dissipation, which comprises a lamp body, wherein a heat dissipation cavity is arranged in the lamp body, an air inlet and an air outlet are respectively formed in two opposite side surfaces of the heat dissipation cavity, an air exhaust fan is fixed on the air outlet, a central axis AA ' is arranged on the heat dissipation cavity, a plurality of radiating fins are arranged on two sides of the central axis AA ', the radiating fins are fixed on the bottom surface of the heat dissipation cavity, intervals are formed between the radiating fins and the side wall of the heat dissipation cavity, one end of each radiating fin, close to the air inlet, is far away from the central axis AA ', and one end of each radiating fin, close to the air exhaust fan, is close to the.

Description

Novel interior radiating plant lamp in wind channel
Technical Field
The invention relates to the field of lighting lamps, in particular to a novel plant lamp with an inner air duct for heat dissipation.
Background
As a new generation of light source, LEDs are widely used in production and life, from common household lighting, municipal lighting, decorative lighting and commercial lighting to plant growth lighting used in emerging plant factories and planting boxes, and artificial supplementary lighting or full-artificial light planting is an advanced stage of modern facility agriculture development.
LED plant lamp can produce a large amount of heats at the during operation, and the heat is piled up too much and all can influence LED lamp pearl and drive power supply's life-span. The LED plant lamp can be divided into active heat dissipation and passive heat dissipation according to the mode of taking away heat from the radiator.
Passive heat dissipation refers to the natural dissipation of heat through a heat sink into the environment. The natural emission efficiency is lower, and the heat dissipation effect is greatly influenced by the environment. The active heat dissipation is realized by using a fan, a water pump and other equipment, so that the flowing speed of the medium around the heat dissipation sheet is increased, and the heat conduction efficiency between the heat dissipation sheet and the medium around the heat dissipation sheet is increased. The active heat dissipation includes water cooling and air cooling. The air cooling heat dissipation is that a heat dissipation fan is additionally arranged on a heat dissipation piece of the LED lamp, so that the air flow speed around the heat dissipation piece is increased, and the air cooling heat dissipation also has the following problems: 1) the size of the fan is large, so that the size of the lamp body is also large; 2) the fan has high power and high noise during working; 3) too dense radiating fins cause large wind resistance and low radiating efficiency 4) short service life of the fan and high failure rate of the lamp.
In the air cooling scheme of the LED lamp in the market, high and dense heat dissipation fins (as shown in fig. 1) are designed on the back of the lamp, and a fan is installed on one side or the top of the heat dissipation fins to promote the air flow between the heat dissipation fins. The high-power LED lamp has large heat productivity, and in order to increase the heat dissipation surface, the number and the height of the heat dissipation fins need to be increased, so that the working wind resistance of the fan is increased, the noise is increased, and the service life of the fan is shortened. And once the fan breaks down, and do not discover and maintain immediately, LED lamp pearl and drive power supply work under high temperature for a long time, and the decay aggravation, life-span shortens greatly. In order to overcome the resistance and promote the effective convection of air in the fin gaps, a fan with higher power needs to be selected, and the higher power also means higher power consumption and noise. This solution has the further disadvantage that the size of the lamp cannot be made very small today, subject to the fin height and fan size.
In order to reduce the height of the lamp, another prior art solution is to separate the fan from the lamp body and connect the fan and the lamp body through an air duct. Because the fan is separated from the lamp body, the size of the lamp body is not restrained by the size of the fan any more, and the height can be reduced. However, the disadvantages of this design are also apparent. Although the height of the lamp main body portion becomes small, the fan portion is still large in size. The newly-added special-shaped air pipe is also a new noise generation point. The vibration that the fan produced in the work can transmit for the tuber pipe, makes it produce resonance and send the noise, and the tuber pipe vibration that the second is exactly that air flow in-process and tuber pipe wall friction arouse, air friction produces vortex vibration in the tuber pipe to and the vibration that internal and external pressure disequilibrium produced. If the air duct is installed unstably, the noise is also greater.
Disclosure of Invention
Therefore, a novel plant lamp with an inner air duct for heat dissipation needs to be provided, and the problems that a fan is large in working wind resistance, high in power consumption, large in noise and the like in the existing equipment are solved.
In order to achieve the purpose, the invention provides a novel plant lamp with an internal air duct for heat dissipation, which comprises a lamp body, wherein the lamp body is provided with a heat dissipation cavity, two opposite side surfaces of the heat dissipation cavity are respectively provided with an air inlet and an air outlet, and fan air is fixed on the air outlet;
the heat dissipation cavity is provided with a central axis AA ', a plurality of heat dissipation fins are arranged on two sides of the central axis AA', the heat dissipation fins are fixed on the bottom surface of the heat dissipation cavity, a gap is formed between each heat dissipation fin and the side wall of the heat dissipation cavity, one end, close to the air inlet, of each heat dissipation fin is far away from the central axis AA ', one end, close to the exhaust fan, of each heat dissipation fin is close to the central axis AA', each heat dissipation fin is provided with an axis, and an included angle alpha is.
Further, the angle α is less than 45 °.
Further, the radiating fins on each side of the central axis AA' comprise at least one guide radiating fin and at least two auxiliary radiating fins, the auxiliary radiating fins are arranged at intervals, the guide radiating fins penetrate through the auxiliary radiating fins, and the length of each guide radiating fin is greater than that of each auxiliary radiating fin.
Furthermore, the closer to the central axis AA ', the smaller the included angle α between the axis of the guide cooling fin and the central axis AA'; the closer the auxiliary fins are to the central axis AA ', the smaller the angle α between the axis and the central axis AA' is.
Furthermore, the number of the air outlets is N, N is an odd number and is more than or equal to 3, one air outlet is positioned on the central axis AA ', and the rest air outlets are uniformly distributed on two sides of the central axis AA'. Odd number updraft fans do work to the air current convulsions in the heat dissipation chamber jointly, therefore, every updraft fan can choose for use less power and can accomplish, and during the convulsions heat dissipation, the heat dissipation air current is divided into the stranded and discharges, and the ventilation noise is littleer, and the updraft fan on the central axis AA' more can mix the heat dissipation air current on both sides limit, balances the atmospheric pressure in two heat dissipation chambers, makes the heat dissipation air current flow toward the middle part simultaneously, helps the heat dissipation in middle part. Furthermore, the bottom surface of the heat dissipation chamber is provided with reinforcing ribs along the central axis AA', one ends of the reinforcing ribs, which are close to the air inlet, are fixedly connected with the side surface of the heat dissipation chamber, and the other ends of the reinforcing ribs and the side surface of the heat dissipation chamber are provided with communicating channels.
Further, the lamp body includes bottom plate, a plurality of curb plate and apron, the curb plate encloses to close and sets up at the upper surface of bottom plate to form the heat dissipation cavity, the apron lid is established in heat dissipation cavity top, fin and strengthening rib are fixed at the upper surface of bottom plate, there is the space between strengthening rib and the apron. The space between the reinforcing ribs and the cover plate is favorable for enhancing the exchange of air flows on two sides of the reinforcing ribs.
Furthermore, be equipped with a plurality of turbulent flow post and reference column in the radiating area, be equipped with the fastener on the reference column, the apron is fixed through fastener and reference column. The turbulence column and the positioning column can generate turbulence to flowing air flow in the heat dissipation cavity, heat exchange of the air flow in the heat dissipation cavity is facilitated, and heat dissipation efficiency is improved.
Furthermore, the turbulence column and the positioning column are both cylinders. The cylinder makes the air current direction change steadily, avoids producing too big windage.
Further, the lamp body is the cuboid, the lamp body has length L, width W and height H, length L, width W and height H satisfy: 0 < (H/W) < 0.1; 0 < (H/L) < 0.1.
Further, a light source is fixed on the bottom surface of the lamp body, and the radiating fin is fixed at the center of the radiating cavity.
The technical scheme has the following beneficial effects:
in the invention, the axial direction of the radiating fin faces to the exhaust fan, the radiating fin can play a role of guiding flow while radiating, and because the two ends of the radiating fin are not directly connected with the side surface of the radiating cavity, when airflow enters the radiating cavity or flows out of the radiating cavity, a relatively large expansion space is provided, the airflow can be sufficiently convected in the radiating cavity, the radiating efficiency is improved, and meanwhile, the wind resistance of the airflow is smaller, so that the power consumption of the exhaust fan is effectively reduced.
Drawings
Fig. 1 is a schematic view of a fan installed on one side of a heat sink fin according to the prior art.
Fig. 2 is a structural view of a lamp body according to an embodiment.
Fig. 3 is an exploded view of an embodiment lamp body.
Fig. 4 is a diagram of a side of a heat dissipation chamber according to an embodiment.
FIG. 5 is a top view of a heat dissipation chamber according to an embodiment.
Fig. 6 is a schematic view of the length L of the lamp body according to the embodiment.
Fig. 7 is a schematic diagram of the width W and height H of the lamp body according to the embodiment.
Fig. 8 is a schematic view of a bottom plate of the lamp body according to the embodiment.
Figure 9 is a schematic flow diagram of the airflow from the heat dissipation chamber according to the embodiment.
Description of reference numerals:
1. a lamp body; 11. an air inlet; 12. an air outlet; 13. an air draft fan; 14. a side plate; 15. a cover plate; 16. a base plate; 17. a light source;
2. a heat dissipation chamber; 21. reinforcing ribs; 211. a communication channel; 22. a heat sink; 221. a flow guide heat radiating fin; 222. an auxiliary heat sink; 23. a turbulence column; 24. and a positioning column.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 2-9, a novel plant lamp with internal air duct for heat dissipation includes a lamp body 1, a heat dissipation chamber 2 is disposed in the lamp body 1, the heat dissipation chamber 2 has a central axis AA', two opposite sides of the heat dissipation chamber 2 are respectively provided with an air inlet 11 and an air outlet 12, the air outlet 12 is fixed with an air exhaust fan 13, specifically, the lamp body 1 includes a bottom plate 16, four side plates 14 and a cover plate 15, the side plates 14 are enclosed on an upper surface of the bottom plate 16 to form the heat dissipation chamber 2, a light source 17 is fixed on a lower surface of the bottom plate 16, the air inlet 11 includes a plurality of through holes, the through holes are strip-shaped and vertically disposed on one side plate 14, the plurality of through holes form a screen structure, thereby effectively preventing external impurities from entering the heat dissipation chamber 2, the number of the air outlets 12 is N, N is an odd number and is 3, N may be 3, 5 or 7, in this embodiment, the number of the air outlets 12 is 3, one of the air outlets is located on the central axis AA ', and the other two air outlets are symmetrically located on two sides of the central axis AA'. The central axis AA' is followed by the extractor fan 13 which causes the air flow to flow towards the central area, which accelerates the heat dissipation in the central area.
Be fixed with strengthening rib 21 on the bottom surface of heat dissipation cavity 2, strengthening rib 21 extends along central axis AA' and sets up, strengthening rib 21 is close to the one end of air intake 11 and the side fixed connection of heat dissipation cavity 2, and the other end of strengthening rib 21 has intercommunication passageway 211 with the side of heat dissipation cavity 2, and strengthening rib 21 fixes the upper surface at bottom plate 16, and the vertical height of strengthening rib 21 is less than the height of heat dissipation cavity 2, has the space between strengthening rib 21 and the apron 15, and this space is favorable to the exchange of strengthening rib 21 both sides limit air current, when improving exchange efficiency, can balance the atmospheric pressure on both sides limit again.
A plurality of turbulence columns 23 and positioning columns 24 are arranged in the heat dissipation chamber 2, fasteners are arranged on the positioning columns 24, and the cover plate 15 is fixed with the positioning columns 24 through the fasteners. The turbulence column 23 and the positioning column 24 can both disturb the flowing air flow in the heat dissipation chamber 2, so that the heat exchange of the air flow in the heat dissipation chamber 2 is facilitated, and the heat dissipation efficiency is improved. The turbulence column 23 and the positioning column 24 are both cylinders. The cylinder makes the air current direction change steadily, avoids producing too big windage.
The two sides of the central axis AA' are both provided with a plurality of heat dissipation fins 22, and the heat dissipation fins 22 are fixed on the bottom surface of the heat dissipation chamber 2. The axial direction of fin 22 is towards updraft fan 13, have the interval between fin 22 and the curb plate 14, the central axis AA is kept away from to the one end that fin 22 is close to air intake 11 ', the central axis AA is close to the one end that fin 22 is close to updraft fan 13 ', fin 22 has the axis, has contained angle alpha between the axis of fin 22 and the central axis AA ', contained angle alpha is the acute angle, specifically, contained angle alpha is less than 45, and the angle is too big can produce great windage, is unfavorable for the heat dissipation.
In this embodiment, the heat dissipation fins 22 on each side of the central axis AA' include one guide heat dissipation fin 221 and two auxiliary heat dissipation fins 222, the two auxiliary heat dissipation fins 222 have a space therebetween, and the guide heat dissipation fin 221 is inserted through the space between the two auxiliary heat dissipation fins 222. The closer to the central axis AA ', the smaller the angle α between the axis of the air guide cooling fin 221 and the central axis AA'; the auxiliary fins 222 closer to the central axis AA 'have smaller angles α between their axes and the central axis AA'.
The guide fin 221 and the subsidiary fin 222 are each one form of the fin 22.
The length of the guiding heat sink 221 is 40-60cm, the length of the auxiliary heat sink 222 is 10-30cm, the length of the guiding heat sink 221 may be 40cm, 50cm, 60cm, the length of the auxiliary heat sink 222 may be 10cm, 20cm, 30cm, specifically, the length of the guiding heat sink 221 is 40cm, and the length of the auxiliary heat sink 222 is 10 cm.
In this embodiment, the lamp body 1 is a rectangular parallelepiped, and the lamp body 1 has a length L, a width W, and a height H, where the length L, the width W, and the height H satisfy: 0 < (H/W) < 0.1; 0 < (H/L) < 0.1, the aspect ratio and the height-length ratio of the lamp body 1 are controlled within 0.1, and the real lightness and thinness are realized, wherein the specific length L is 436.5mm, the width W is 460mm, and the height H is 35 mm.
The using process of the embodiment is as follows:
the induced draft fan 13 works, the air current enters the heat dissipation chamber 2 from the air inlet 11, because the interval is provided between the two ends of the radiating fin 22 and the side plate 14, the air current can be fully and uniformly diffused at the head of the heat dissipation chamber 2, the air current is continuously disturbed by the disturbing column 23 and the positioning column 24 in the process of flowing to the air outlet 12, and continuously carries out heat exchange, meanwhile, the air current at the two sides of the central axis AA' can be subjected to air current exchange through the space on the reinforcing rib 21, the pressure at the two sides is balanced, the air current is continuously guided to the air outlet 12 by the flow guiding radiating fin 221 and the two auxiliary radiating fins 222, the heat is continuously taken away by the surface of the flow guiding radiating fin 221 and the auxiliary radiating fins 222, when the air current reaches the side surface provided with the air outlet 12, the air current is divided into three small, the air current assembles to the middle part at the in-process that flows, improves the radiating effect of air current.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.

Claims (10)

1. A novel plant lamp with an internal air duct for heat dissipation is characterized by comprising a lamp body, wherein the lamp body is provided with a heat dissipation cavity, two opposite side surfaces of the heat dissipation cavity are respectively provided with an air inlet and an air outlet, and an exhaust fan is fixed on the air outlet;
the heat dissipation cavity is provided with a central axis AA ', a plurality of heat dissipation fins are arranged on two sides of the central axis AA', the heat dissipation fins are fixed on the bottom surface of the heat dissipation cavity, a gap is formed between each heat dissipation fin and the side wall of the heat dissipation cavity, one end, close to the air inlet, of each heat dissipation fin is far away from the central axis AA ', one end, close to the exhaust fan, of each heat dissipation fin is close to the central axis AA', each heat dissipation fin is provided with an axis, and an included angle alpha is.
2. A plant lamp as claimed in claim 1, characterized in that said angle α is smaller than 45 °.
3. The plant lamp as claimed in claim 1, wherein the fins on each side of the central axis AA' include at least one guide fin and at least two auxiliary fins spaced apart from each other, the guide fin being inserted between the auxiliary fins, the guide fin having a length greater than that of the auxiliary fins.
4. The plant lamp as claimed in claim 3, wherein the angle α between the axis of the heat dissipating fin and the central axis AA 'is smaller as the heat dissipating fin is closer to the central axis AA'; the closer the auxiliary fins are to the central axis AA ', the smaller the angle α between the axis and the central axis AA' is.
5. The plant lamp as claimed in claim 1, wherein the number of the air outlets is N, N is an odd number and is equal to or greater than 3, one air outlet is located on the central axis AA ', and the rest air outlets are uniformly distributed on both sides of the central axis AA'.
6. The plant lamp as claimed in claim 1, wherein the bottom surface of the heat dissipation chamber is provided with a reinforcing rib along the central axis AA', one end of the reinforcing rib near the air inlet is fixedly connected with the side surface of the heat dissipation chamber, and the other end of the reinforcing rib is provided with a communication channel with the side surface of the heat dissipation chamber.
7. The plant lamp as claimed in claim 1, wherein the lamp body comprises a bottom plate, a plurality of side plates and a cover plate, the side plates are arranged on the upper surface of the bottom plate in a surrounding manner and form the heat dissipation chamber, the cover plate is arranged above the heat dissipation chamber, the heat dissipation fins and the reinforcing ribs are fixed on the upper surface of the bottom plate, and spaces are formed between the reinforcing ribs and the cover plate.
8. The plant lamp as claimed in claim 7, wherein a plurality of turbulence posts and positioning posts are arranged in the heat dissipation chamber, fastening members are arranged on the positioning posts, and the cover plate is fixed with the positioning posts through the fastening members.
9. The plant lamp of claim 1, wherein the lamp body is a rectangular parallelepiped, the lamp body having a length L, a width W, and a height H, the length L, the width W, and the height H satisfying: 0 < (H/W) < 0.1; 0 < (H/L) < 0.1.
10. The plant lamp as claimed in claim 1, wherein the light source is fixed to the bottom surface of the lamp body, and the heat sink is fixed to the center of the heat dissipation chamber.
CN202011622782.4A 2020-12-31 2020-12-31 Plant lamp with inner air duct for heat dissipation Active CN112648563B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113843246A (en) * 2021-10-09 2021-12-28 广东天赐湾实验室装备制造有限公司 Be suitable for bellows and fume chamber of rectification
CN114431027A (en) * 2022-01-21 2022-05-06 中国人民解放军63919部队 Light source system applied to on-orbit plant cultivation
CN115750439A (en) * 2022-11-16 2023-03-07 南昌航空大学 Air-cooled integrated ducted fan based on boundary layer intake

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