WO2022099567A1

WO2022099567A1 - Lighting lamp with a plurality of modules driven by single constant current power supply

Info

Publication number: WO2022099567A1
Application number: PCT/CN2020/128488
Authority: WO
Inventors: 刘庆华; 司丽明; 古峰; 施有启; 李永康
Original assignee: 郑州创亿达照明有限公司
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2022-05-19

Abstract

The present application provides a lighting lamp with a plurality of modules driven by a single constant current power supply. The lighting lamp comprises: a constant current power supply drive, a plurality of LED modules and a line closer, wherein the plurality of LED modules are electrically connected to each other by means of interconnection lines, and the plurality of LED modules are connected in series. The LED module located at the beginning of the series connection is electrically connected to a single constant current power supply drive, the LED module located at the end of the series connection is electrically connected to the line closer, and when the LED module located at the end of the series connection is not connected to the line closer, the entire lighting circuit is in an open state and can not be operated. In the present application, a plurality of LED modules are connected in series, so that current distribution and luminous flux among the plurality of LED modules are consistent, and the lighting effect of a lamp on a plant can be improved. In addition, in the present application, power is supplied in a single drive manner, so as to facilitate thermal management of the drive circuit.

Description

A lighting fixture with multiple modules driven by a single constant current power supply

technical field

The utility model relates to the field of plant lighting fixtures, in particular to a lighting fixture which is driven by a single constant current power supply with multiple modules.

Background technique

Plant lights, as the name suggests, are lamps for plants. The plant lamp simulates the principle that plants need sunlight for photosynthesis, and supplements the light for plants or completely replaces sunlight. After application testing, the grow light is very suitable for the growth, flowering and fruiting of plants. Generally, indoor plants and flowers will grow worse and worse over time due to the lack of natural light. By using plant lights with the required spectrum of plants, it can not only promote their growth, but also prolong the flowering period and improve the quality of flowers. The application of this high-efficiency light source system to agricultural production in greenhouses, greenhouses and other facilities can, on the one hand, solve the problem that lack of sunlight leads to the decrease in the taste of greenhouse vegetables such as tomatoes and cucumbers. It will be listed before and after the Spring Festival, so as to achieve the purpose of off-season 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 show the following characteristics: rich in wavelength types, which are exactly in line with the spectral range of plant photosynthesis and photomorphology; the half-width of the spectral wave is narrow, and pure monochromatic light and composite spectrum can be combined as needed; can be concentrated Light of a specific wavelength irradiates crops in a balanced manner; it can not only adjust crop flowering and fruiting, but also control plant height and plant nutrients; the system generates less heat and occupies less space, and can be used in a multi-layer cultivation three-dimensional combination system to achieve low heat load. and miniaturization of production space; in addition, its exceptional durability reduces operating costs. Due to these remarkable characteristics, LEDs are very suitable for plant cultivation in controlled facility environments, such as plant tissue culture, facility horticulture and factory seedling raising, and aerospace ecological life protection systems.

When the lighting area is large, large-area plant lighting is usually performed by paralleling multiple groups of LED light panels. However, as the number of parallel LED light panels increases, the current distribution and luminous flux among multiple LED light panels will be inconsistent, resulting in The plant lighting effect is not uniform everywhere, which affects the plant lighting effect; when used on a plant planting shelf, the built-in drivers of multiple LED light panels will generate a lot of heat, which will affect the temperature between the shelves. In addition, due to the large number of LED light panels connected in parallel, each light fixture needs to be equipped with an external drive power supply, and the configuration wiring is cumbersome, and when the LED module is missing or wrongly installed, it is easy to cause the LED current to be too large and cause damage.

Utility model content

Based on this, it is necessary to provide a lighting fixture with multiple modules driven by a single constant current power supply in order to solve the problem of poor lighting effect caused by inconsistent current distribution and luminous flux among multiple LED lamps in current plant lighting fixtures.

The above purpose is achieved through the following technical solutions:

A lighting fixture that drives multiple modules by a single constant current power supply, comprising: a constant current power supply drive, a plurality of LED modules and a circuit closer, the LED modules include LED lights, and the LED lights are provided with a first input an interface, a first output interface, a second input interface, and a second output interface, the plurality of the LED modules include the first module to the Nth module, and the first module to the Nth module are connected in series The second output interface of the M-1th module is electrically connected to the first input interface of the Mth module, and the first output interface of the Mth module is electrically connected to the first output interface of the Mth module. For the second input interface of the M-1 module, M is greater than 1 and not greater than N, and both M and N are positive integers; the first input interface and the first output interface of the first module are both electrically connected to the Driven by a constant current power supply; the circuit closer includes a first end and a second end that are electrically connected, the second output interface of the Nth module is connected to the first end, and the second output interface of the Nth module is connected to the first end. The two input ports are communicated with the second end.

In one embodiment, the LED lamps with the same voltage drop are connected in parallel in the LED module, LED lamp beads with different voltage drops are connected in parallel in the lamp board circuit of the LED lamp, and the LED lamp beads are connected in series with resistance.

In one embodiment, the voltage drop of the LED module is 12-24V.

In one of the embodiments, the number of the LED lamps in any one of the LED modules is one or more.

In one of the embodiments, it further includes a lamp holder, the lamp holder includes an end portion and a connecting portion, the number of the end portions is two, and the two ends of the connecting portion are respectively fixedly connected to the two end portions; The LED module is mounted on the connecting portion.

In one of the embodiments, the end portion includes a front side plate, a rear side plate and a blocking cover, the front side plate is provided with a first wire routing hole, a clamping groove and a wire accommodating groove, the first wire routing hole The wire holes are arranged close to the connecting part, the snap-fit grooves are arranged opposite to both sides of the front side plate, the wire accommodating grooves are arranged on the inner side of the front side plate, and the rear side plate is arranged with a clamping part, the rear side plate and the front side plate are clamped and fixedly connected to the clamping groove through the clamping part; the blocking cover is arranged on both ends of the end part, and the blocking cover An end cap fixing hole is provided on the top.

In one embodiment, a colored plastic decorative cover is provided on the connecting portion near the end portion.

In one embodiment, a heat sink is provided on the LED module.

In one embodiment, the LED modules can be opened and closed independently.

The beneficial effects of the present utility model are:

The utility model provides a lighting fixture that is driven by a single constant current power supply to drive multiple modules, comprising: a constant current power supply drive, multiple LED modules and a circuit closer. connection, and the plurality of LED modules are connected in series. The LED module at the beginning of the series is electrically connected with a single constant current power supply, the LED module at the end of the series is electrically connected with the circuit closer, and when the LED module at the end of the series is not connected to the circuit closer, The entire lighting circuit is open and cannot work. By connecting multiple LED modules in series, the current distribution and luminous flux among the multiple LED modules can be kept consistent, which can improve the lighting effect of lamps on plants; multiple LED modules are connected in series, and the wiring is simple; and Power is supplied from a single drive for easy thermal management of the drive.

Description of drawings

1 is a schematic structural diagram of a lighting fixture that is driven by a single constant current power supply to drive multiple modules according to an embodiment of the present invention;

2 is a schematic structural diagram of a lamp holder part of a lighting fixture in which multiple modules are driven by a single constant current power supply according to an embodiment of the present invention;

FIG. 3 is an exploded view of the lamp holder in FIG. 2 .

in:

Constant current drive power supply 110; LED module 120; first module 121; Nth module 12N; circuit closer 130; lamp holder 200; Slot 211b ; wire accommodating slot 211c ; rear side plate 212 ; blocking cover 213 ;

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

The sequence numbers themselves, such as "first", "second", etc., for the components herein are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "connection" mentioned in this application, unless otherwise specified, include both direct and indirect connections (connections). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", "clockwise", "counterclockwise" and other indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present utility model and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The utility model provides a lighting fixture driven by a single constant current power supply with multiple modules, as shown in FIG. 1 , comprising: a constant current power supply driver 110, multiple LED modules 120 and a circuit closer 130, multiple LEDs The modules 120 are electrically connected through interconnecting wires, and the plurality of LED modules 120 are connected in series. The LED module 120 at the beginning of the series is electrically connected to the single constant current power driver 110, the LED module 120 at the end of the series is electrically connected to the circuit closer 130, and when the LED module 120 at the end of the series is not connected to the circuit When the closer 130 is connected, the entire lighting circuit is in an open state and cannot work. By connecting a plurality of LED modules 120 in series, the current distribution and luminous flux among the plurality of LED modules 120 are kept consistent, which can improve the lighting effect of the lamps on plants; the plurality of LED modules 120 are connected in series, and the wiring Simple; and powered by a single drive, which facilitates thermal management of the drive.

Specifically, the LED module 120 includes an LED lamp, and the LED lamp is provided with a first input interface, a first output interface, a second input interface, and a second output interface, and the plurality of LED modules 120 include the first module 121 to the first N module 12N, the first module 121 to the Nth module 12N are connected in series, the second output interface of the M-1th module is electrically connected to the first input interface of the Mth module, and the Mth module The first output interface is electrically connected to the second input interface of the M-1th module, M is greater than 1 and not greater than N, and both M and N are positive integers; the first input interface of the first module 121 and the first The output interfaces are all electrically connected to the constant current power driver 110; the circuit closer 130 includes a first end and a second end that are electrically connected, the second output interface of the Nth module 12N is connected to the first end, and the Nth module The second input interface of 12N is connected to the second end. For ease of understanding, the electrical connection between the plurality of LED modules 120 can be divided into two lines, the line passing through the second output interface and the first input interface is regarded as an input line, and the line passing through the first output interface and the second input interface is regarded as an input line. The line is regarded as an output line, and one end of the input line and one end of the output line (that is, the first input interface and the first output interface of the first module 121) are connected to the constant current power driver 110. When the line closer 130 is not installed, the input The other end of the line and the other end of the output line (ie, the second output interface and the second input interface of the Nth module 12N) can be regarded as being in an open circuit state, so that a circuit cannot be formed in the entire lamp and the lighting circuit cannot work. When the other end of the input line and the other end of the output line (that is, the second output interface and the second input interface of the Nth module 12N) are connected to the line closer 130, it is equivalent to connecting the other end of the input line and the other end of the output line, and the entire The lighting circuit forms a loop and can work normally.

In one embodiment, the LED modules are connected in parallel with LED lamps of the same voltage, LED lamp beads with different voltage drops are connected in parallel in the circuit of the LED lamps, and the series resistance of the low-voltage drop LED lamp beads works in parallel with the high-voltage drop LED lamp beads , so that LED lamp beads with different voltage drops and different wavelengths can work in parallel and are evenly arranged on the lamp board.

In one embodiment, the voltage drop of the LED module is 12-24V.

In one of the embodiments, the number of LED lamps in any LED module is one or more.

In one of the embodiments, as shown in FIG. 2 , a lamp holder 200 is further included. The lamp holder 200 includes an end portion 210 and a connecting portion 220 , the number of the end portions 210 is two, and both ends of the connecting portion 220 are fixedly connected to two The end portion 210 ; the LED module is mounted on the connecting portion 220 .

In one embodiment, as shown in FIG. 3 , the end portion includes a front side plate 211 , a rear side plate 212 and a blocking cover 213 , and the front side plate 211 is provided with a first wiring hole 211 a , a snap groove 211 b and a container The wire slot 211c, the first wire hole 211a is arranged near the connection part, the snap slot 211b is arranged on both sides of the front side plate 211 oppositely, the wire accommodating slot 211c is arranged on the inner side of the front side plate 211, and is arranged on the rear side plate 212 There is a clamping part, the rear side plate 212 and the front side plate 211 are fixedly connected to the clamping groove 211b through the clamping part; the blocking cover 213 is arranged on both ends of the end part, and the blocking cover 213 is provided with end cover fixing holes 213a .

In one embodiment, as shown in FIG. 2 , a colored plastic decorative cover 221 is provided on the connecting portion 220 near the end portion 210 to enhance the waterproof performance of the lamp.

In one embodiment, a heat sink is provided on the LED module to enhance the heat dissipation performance of the lamp.

In one embodiment, the LED modules can be opened and closed independently.

Based on the above-mentioned embodiments, the present invention has at least the following advantages:

(1) The multiple LED modules are connected in series, so that the current distribution and luminous flux among the multiple LED modules can be kept consistent.

(2) Multiple LED modules are connected in series, and the LED modules are provided with multiple interfaces, which makes the wiring of the entire lighting fixture easy to install, and avoids the problem of wrong installation and missing LED installation. .

(3) It is driven by a single constant current power supply, which is convenient for thermal management of the drive and avoids the problem of excessive heating caused by the built-in driver of the lighting fixture when the lighting fixture is used on the planting shelf.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims

A lighting fixture with multiple modules driven by a single constant current power supply is characterized by comprising: a constant current power supply drive, multiple LED modules and circuit closers, the LED modules include LED lights, and the LED lights are provided with There are a first input interface, a first output interface, a second input interface, and a second output interface, and the plurality of the LED modules include the first module to the Nth module, and the first module to the Nth module The modules are connected in series, the second output interface of the M-1th module is electrically connected to the first input interface of the Mth module, and the first output interface of the Mth module is electrically connected In the second input interface of the M-1th module, M is greater than 1 and not greater than N, and both M and N are positive integers; the first input interface and the first output interface of the first module are both electrically connected to the constant current power supply; the circuit closer includes a first end and a second end that are electrically connected, the second output interface of the Nth module is connected to the first end, and the Nth module is connected to the first end. The second input interface of the module is communicated with the second end.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 1, characterized in that, the LED lights with the same voltage drop are connected in parallel in the LED modules, and the lamp board circuit of the LED lights LED lamp beads with different voltage drops are connected in parallel, and resistors are connected in series with the LED lamp beads.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 1 or 2, wherein the voltage drop of the LED modules is 12-24V.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 1, wherein the number of the LED lamps in any one of the LED modules is one or more.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 1, further comprising a lamp holder, the lamp holder comprising an end portion and a connecting portion, and the number of the end portions is two, Both ends of the connecting portion are fixedly connected to the two end portions respectively; the LED module is mounted on the connecting portion.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 5, wherein the end portion comprises a front side plate, a rear side plate and a blocking cover, and the front side plate is provided with a first A wiring hole, a snap slot and a cable accommodating slot, the first wiring hole is arranged close to the connecting part, the snap slot is oppositely arranged on both sides of the front side plate, and the wire accommodating slot is arranged On the inner side of the front side plate, the rear side plate is provided with a clamping part, and the rear side plate and the front side plate are clamped and fixedly connected to the clamping groove through the clamping part; The blocking cover is arranged at both ends of the end portion, and the blocking cover is provided with an end cover fixing hole.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 5, wherein a colored plastic decorative cover is provided on the connecting portion near the end portion.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 1, wherein a heat sink is provided on the LED module.
The lighting fixture with multiple modules driven by a single constant current power supply according to claim 1, wherein the LED modules can be opened and closed independently.