CN102588781B - LED plant growth down lamp - Google Patents

Abstract

The present invention is applicable to the technical field of lamp production, and provides an LED plant growth downlight, which includes a lamp housing, a driving power supply, an LED light source and a heat sink arranged in the cavity of the lamp housing, and the LED light source includes an aluminum substrate and a device. A plurality of LED lamp beads on the aluminum substrate, the plurality of LED lamp beads are a plurality of red LED lamp beads and a plurality of blue LED lamp beads with a quantity ratio of 7:3, and the red LED lamp The main wave peak of the light emitted by the beads and the blue LED lamp beads is 370-390nm, the aluminum substrate is arranged close to one end surface of the heat sink, and the lamp housing is provided with a plurality of cooling holes. The LED plant growth downlight provided by the present invention can greatly increase the growth rate of algae plants by its light irradiation, and at the same time, the heat dissipation performance of the lamp is good, and the service life is guaranteed.

Description

LED Grow Downlight

technical field

The invention belongs to the technical field of lamp production, and more specifically relates to an LED plant growth downlight that can promote the rapid growth of plants.

Background technique

Light environment is one of the indispensable important physical environmental factors for plant growth and development. Controlling plant morphogenesis through light quality adjustment is an important technology in the field of protected cultivation. As the fourth-generation new lighting source, LED has many characteristics different from other electric light sources, which also makes it the first choice for energy-saving and environmentally friendly light sources. LEDs used in the field of plant cultivation also exhibit the following characteristics: rich wavelength types, just in line with the spectral range of plant photosynthesis and photomorphology; the half-width of the spectral wave width is narrow, and can be combined to obtain pure monochromatic light and composite spectra according to needs; can be concentrated The light of specific wavelength irradiates the crops in a balanced manner; not only can the flowering and fruiting of crops be adjusted, but also the plant height and the nutritional content of plants can be controlled; the system generates less heat and occupies a small space, and can be used in multi-layer cultivation three-dimensional combination systems to achieve low heat load and production space miniaturization; in addition, its extreme durability also reduces operating costs. Due to these remarkable features, LEDs are very suitable for plant cultivation in controlled facility environments, such as plant tissue culture, facility horticulture and industrial seedling cultivation, and aerospace ecological life protection systems.

However, the existing LED lamps that emit red and blue light bands promote the growth of plants (especially aquatic algae plants) slowly, and the effect is not obvious. Moreover, the temperature is too high during the working process, and the heat sink cannot effectively dissipate the temperature of the light source, resulting in serious light decay of the lamp and affecting the service life of the entire lamp.

Contents of the invention

The technical problem to be solved by the present invention is to provide an LED plant growth downlight, which aims to greatly increase the growth rate of algae plants through the light irradiation of this kind of lamp, and at the same time, the lamp has good heat dissipation performance and long service life.

In order to solve the above technical problems, the technical solution adopted by the present invention is to provide an LED plant growth downlight, including a lamp housing, a driving power supply, an LED light source and a radiator arranged in the cavity of the lamp housing, and the LED light source It includes an aluminum substrate and a plurality of LED lamp beads arranged on the aluminum substrate, the plurality of LED lamp beads are a plurality of red LED lamp beads and a plurality of blue LED lamp beads with a quantity ratio of 7:3, and the The main wave peak of the light emitted by the red LED lamp bead and the blue LED lamp bead is 370-390nm, the aluminum substrate is arranged close to one end surface of the heat sink, and the lamp housing is provided with a plurality of cooling holes;

It also includes a cooling fan and a driving power fixing piece, the driving power is arranged in the lamp housing through the driving power fixing piece, and the cooling fan is arranged on the other end surface of the radiator and the driving power fixing piece between;

A stud is set on the driving power fixing part, and a "cross"-shaped fixing part is fixed on the driving power fixing part through the screw cooperation with the stud, and the cooling fan passes through the "cross"-shaped fixing part connected to the drive power fixture;

The heat sink includes a circular column with an inner hollow structure and a plurality of cooling fins distributed on the periphery of the circular column, and the air outlet surface of the cooling fan is facing the opening at one end of the circular column;

The radiating fins are bifurcated in a "Y" shape, and the bifurcated parts are curved and arranged in the same direction on the circumference.

Specifically, the number of the LED lamp beads is 30, wherein the number of the red LED lamp beads and the blue LED lamp beads are 21 and 9 respectively, and they are arranged in a matrix of 3×10.

Optimally, the plurality of heat dissipation holes on the lamp housing are elongated through holes.

Further, it also includes a tail cap arranged on the lamp housing, the tail cap is provided with a threading hole, and a protective coil is arranged in the threading hole.

Further, it also includes a front cover, through which a transparent member is arranged on the front end of the lamp housing.

Preferably, a sealing ring is provided between the contact surface of the transparent member and the front cover.

The beneficial effect of the LED plant growth downlight provided by the present invention is: the LED plant growth downlight of the present invention, wherein the LED light source includes a plurality of LED red light beads and LED blue light beads, and the ratio between the two is 7: 3. The main peak of the emitted light is 370-390nm. The ratio of the number of red and blue LED lamp beads and the wavelength range of the emitted light can greatly promote the growth rate of algae plants. It has been proved by experiments that the growth rate can be increased to a certain extent. It is five times faster than the normal growth rate, and the effect is very remarkable; in addition, by setting the cooling holes on the lamp housing as strips, improving the structure of the radiator, and setting a cooling fan in the downlight, the downlight can be greatly improved. Excellent heat dissipation performance ensures that the internal temperature of the lamp will not be too high even if it works for a long time, ensuring its normal operation and prolonging the service life of the lamp.

Description of drawings

Fig. 1 is the schematic diagram of the explosive decomposition structure of the LED plant growth downlight provided by the embodiment of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram 1 of the LED plant growth downlight provided by the embodiment of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram II of the LED plant growth downlight provided by the embodiment of the present invention;

Fig. 4 is a side view structural schematic diagram of the LED plant growth downlight provided by the embodiment of the present invention;

Fig. 5 is a schematic diagram of the front structure of the LED plant growth downlight provided by the embodiment of the present invention;

Fig. 6 is a sectional structure diagram along B-B direction in Fig. 5;

FIG. 7 is a partially enlarged structure diagram at point A in FIG. 1 .

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to FIG. 1 to FIG. 6 together, and now the LED plant growth downlight provided by the present invention will be described. The LED plant growth downlight includes a lamp housing 1, a driving power supply 21 disposed in the cavity of the lamp housing 1, an LED light source 3 and a radiator 4, and the LED light source 3 includes an aluminum substrate 31 and is disposed on the aluminum substrate. A plurality of LED lamp beads 32 on the substrate 31, the plurality of LED lamp beads 32 are a plurality of red LED lamp beads and a plurality of blue LED lamp beads with a quantity ratio of 7:3, and the red LED lamp beads The main wave peak of the light emitted by the LED blue light beads is 370-390nm, and the aluminum substrate 31 is arranged close to one end surface of the heat sink 4 to ensure good heat transfer between the two. The lamp housing 1 is provided with There are a plurality of heat dissipation holes 10, and the lamp housing 1 is made of aluminum material with better heat dissipation performance. The LED plant growth downlight also includes a heat dissipation fan 51 and a driving power supply fixing part 20, and the driving power supply 21 is fixed by the driving power supply. The component 20 is disposed in the lamp housing 1 , and the cooling fan 51 is disposed between the other end surface of the heat sink 4 and the driving power fixing component 20 . In this embodiment, a cooling fan 51 is added in the lamp housing, and the blowing direction of the cooling fan 51 blows from the upper end of the radiator 4 to the other end, which accelerates the air flow in the lamp housing 1 and sends hot air from the radiator 4 to the other end. Blowing out from the heat dissipation holes 10 on the side lamp housing 1 greatly increases the exchange speed of the external cold air and the internal hot air, and the heat generated by the light source components and the driving power inside the downlight is quickly taken out to ensure that the lamps Work in a lower temperature state, thereby prolonging the service life of the product. Wherein, the cooling fan 51 is powered by a dedicated fan driving power supply 53 ; the cooling fan 51 is connected to the driving power supply fixing piece 20 through a “cross”-shaped fixing piece 52 . Specifically, the cooling fan 51 can be fixed on the fixing part 52 by at least two screws, a stud is set on the driving power fixing part 20, and the "cross" shaped fixing part 52 is fixed on the driving power fixing part 20 through the screw and the stud. In this way, the cooling fan 51 is firmly fixed and runs stably, so as not to generate large vibrations and affect the light effect.

In the LED plant growth downlight provided by the present invention, the LED light source 3 includes a plurality of LED red light beads and LED blue light beads, and the ratio between them is 7:3, and the main peak of the emitted light is 370 ~390nm, the ratio of the number of LED red light and blue light beads and the wavelength range of the light emitted can greatly promote the growth rate of algae plants. It has been proved by experiments that the growth rate can be increased by five times the normal growth rate. The effect is very significant.

Further, as a specific embodiment of the LED plant growth downlight provided by the present invention, the number of the LED lamp beads 31 is 30, wherein the number of the red LED lamp beads and the blue LED lamp beads are 21 and 9 respectively. , and arranged in a matrix of 3 columns x 10 rows. In this embodiment, in each column of the matrix, two red LED lamp beads are arranged in an arrangement with one LED blue lamp bead separated, and the emitted light promotes the faster growth of algae plants.

Further, please refer to FIG. 7 , as a specific embodiment of the LED plant growth downlight provided by the present invention, the heat sink 4 includes a circular column 40 with an inner hollow structure and distributed on the periphery of the circular column 40 There are a plurality of cooling fins 41 , and the air outlet surface of the cooling fan 51 faces an opening at one end of the ring column 40 . In this embodiment, the wind blown by the cooling fan 51 can pass through the hollow part in the ring column 40 to take away the heat therein, and the plurality of cooling fins 41 greatly increases the surface area of the radiator 4, which is beneficial to the transfer of heat, thereby Improve cooling efficiency.

Further, please refer to FIG. 7 again. As a specific embodiment of the LED plant growth downlight provided by the present invention, the heat sink 41 is bifurcated in a "Y" shape, and the bifurcated parts are directed toward the same direction on the circumference. Orientation curved arrangement. This bifurcated structure can greatly increase the surface area of the radiator 4, and the bifurcated parts are curved and arranged in the same direction on the circumference, and the gap in the middle can form an air duct, which is beneficial to the cold air sucked in by the cooling fan 51 from the outside and taken away. heat.

Further, please refer to any one of Figures 1 to 4, as a specific embodiment of the LED plant growth downlight provided by the present invention, the plurality of heat dissipation holes 10 on the lamp housing 1 are elongated through holes . The exhaust holes of the lamp housing are set in long strips, which greatly improves the efficiency of heat removal inside the lamp.

Further, referring to Fig. 1, Fig. 3, Fig. 4 and Fig. 6, as a specific embodiment of the LED plant growth downlight provided by the present invention, it also includes a tail cap 6 arranged on the lamp housing 1, the A threading hole 60 is provided on the tail cover 6 , and a protective coil 61 is provided in the threading hole 60 . In this way, when the wire 111 is introduced from the threading hole of the tail cover 6, due to the sealing effect of the protective coil 61, rainwater can be prevented from entering, and its protection level can reach IP65.

Further, please refer to Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 6, as a specific embodiment of the LED plant growth downlight provided by the present invention, it also includes a front cover 7, through which the The transparent member 8 is arranged at the front end of the lamp housing 1 . On the one hand, the transparent part 8 plays a protective role for the LED lamp beads and other components inside the downlight, and on the other hand, it plays a light distribution function for the light source inside the lamp. In order to ensure its durability, the transparent part can be made of toughened transparent glass.

Further, please refer to Fig. 1 and Fig. 6, as a specific embodiment of the LED plant growth downlight provided by the present invention, a sealing ring 9 is also provided between the contact surface of the transparent member 8 and the front cover 7 . The sealing ring 9 can play a sealing role, so that the protection level of the front end of the lamp can reach IP65.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (6)

1. a LED plant growth down lamp, comprise lamp housing, be located at driving power in described lamp housing cavity and LED light source and radiator, it is characterized in that: described LED light source comprises aluminium base and is located at the multiple LED lamp bead on described aluminium base, the main crest of the light that multiple LED red globe lamp pearl of multiple described LED lamp bead to be number ratio be 7:3 and multiple LED blue-ray light pearl and described LED red globe lamp pearl and LED blue-ray light pearl send is 370 ~ 390nm, the end face that described aluminium base is close to described radiator is arranged, and described lamp housing is provided with multiple louvre;

Also comprise a radiator fan and a driving power fixture, described driving power is located in described lamp housing by driving power fixture, and described radiator fan is located between the other end of described radiator and described driving power fixture;

Described driving power fixture arranges stud, be fixed on described driving power fixture by stud described in screw fit by the fixture of one " ten " font, described radiator fan is connected on described driving power fixture by the fixture of described " ten " font;

Described radiator comprises the annulus post of interior hollow-core construction and is distributed in multiple fin of described annulus post periphery, and the outlet air surface of described radiator fan is just to the one end open of described annulus post;

Described fin is in " Y " shaped forked shape, and the part of bifurcated is in circumferentially bend alignment in the same direction.

2. LED plant growth down lamp as claimed in claim 1, it is characterized in that: the quantity of described LED lamp bead is 30, wherein said LED red globe lamp pearl, LED blue-ray light pearl are respectively 21 and 9, and in 3 × 10 matrix arrangements.

3. LED plant growth down lamp as claimed in claim 1 or 2, is characterized in that: the multiple louvres on described lamp housing are strip through hole.

4. LED plant growth down lamp as claimed in claim 1 or 2, it is characterized in that: also comprise the tail-hood be located on described lamp housing, described tail-hood is provided with through wires hole, is provided with protective ring in described through wires hole.

5. LED plant growth down lamp as claimed in claim 1 or 2, be is characterized in that: also comprise protecgulum, by described protecgulum, one Transparent Parts is located at the front end of described lamp housing.

6. LED plant growth down lamp as claimed in claim 5, is characterized in that: be also provided with a sealing ring between the contact surface of described Transparent Parts and described protecgulum.