CN212305722U

CN212305722U - LED driving module and lighting lamp

Info

Publication number: CN212305722U
Application number: CN202021910779.8U
Authority: CN
Inventors: 黎国权; 张国宝; 翁健峰
Original assignee: Opp Lighting Appliances Zhongshan Co ltd; Opple Lighting Co Ltd
Current assignee: Opp Lighting Appliances Zhongshan Co ltd; Opple Lighting Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-01-05
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a LED drive module and illumination lamps and lanterns to solve current linear constant current drive circuit at least with high costs and occupy the problem in a large amount of spaces of illumination lamps and lanterns. The LED driving module comprises: a first substrate; the electronic component is electrically connected with the input end of the LED load and drives the LED load, and the electronic component is arranged on the first substrate; the constant current module is electrically connected with the output end of the LED load and provides constant current for the LED load, the constant current module at least comprises a second substrate and a constant current IC chip, the constant current IC chip is attached to the surface of the second substrate, and the second substrate is electrically connected with the first substrate.

Description

LED driving module and lighting lamp

Technical Field

The utility model relates to the technical field of circuits, especially, relate to a LED drive module and illumination lamps and lanterns.

Background

In order to solve the stroboscopic phenomenon caused by the fluctuation of the input voltage, more and more lighting lamps adopt a linear constant current driving Circuit, and a linear constant current IC (Integrated Circuit) is connected in series with an LED (Light Emitting Diode) of the lighting lamp to provide a constant current for the LED.

Because the input voltage range and the stroboflash of a power grid need to be considered when linear constant current driving is actually designed, the minimum input voltage is generally required to be within the designed input voltage range, but the loss of the linear constant current driving circuit is high when the input voltage is maximum, so that the heat dissipation requirement on the linear constant current driving circuit is high.

In contrast, the conventional circuit board of the linear constant current driving circuit generally adopts a base material with a good heat dissipation effect, such as aluminum, ceramic, and the like, and the linear constant current IC is attached to the circuit board, so as to achieve the purpose of dissipating heat of the linear constant current IC. Therefore, other electronic components in the linear constant current driving circuit need to be attached to the circuit board so as to be convenient for production and manufacturing. However, because there are no large-scale electronic components such as inductors and capacitors in the market at present, the electronic components need to be attached to the circuit board by manual welding, which further occupies a large amount of human resources and increases the processing cost. Moreover, the price of the patch type electronic components is high, all the electronic components are patch type, so that the cost is high, and a large-size circuit board is required to be adopted to facilitate the installation of each electronic component, thereby occupying a large amount of space of the lighting lamp.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a LED drive module and illumination lamps and lanterns to solve current linear constant current drive circuit at least with high costs and occupy the problem in a large amount of spaces of illumination lamps and lanterns.

In order to solve the above problem, the utility model adopts the following technical scheme:

in a first aspect, the utility model provides a LED driving module, include:

a first substrate;

the electronic component is electrically connected with the input end of the LED load so as to drive the LED load to work, and the electronic component is arranged on the first substrate;

the constant current module is electrically connected with the output end of the LED load to provide constant current for the LED load, and at least comprises a second substrate and a constant current IC chip, wherein the constant current IC chip is attached to the surface of the second substrate, and the second substrate is electrically connected with the first substrate.

Optionally, the second substrate and the first substrate are disposed opposite to each other and parallel to each other.

Optionally, the constant current IC chip is attached to a surface of the second substrate facing the first substrate.

Optionally, a conductive element is disposed on the second substrate, and the second substrate is electrically connected to the first substrate through the conductive element.

Optionally, the LED driving module further includes a housing, and the first substrate, the electronic component, and the constant current module are disposed in the housing.

Optionally, a surface of the second substrate opposite to the surface on which the constant current IC chip is located is attached to the housing.

Optionally, a heat conducting layer is disposed between the second substrate and the housing.

Optionally, the electronic component is plugged and/or attached to the first substrate.

Optionally, the constant current module further includes a controller, and the controller is electrically connected to the control end of the constant current IC chip to control the constant current IC chip to output a constant current.

In a second aspect, the present invention provides a lighting fixture, which includes a LED load and a LED driving module provided by the first aspect.

The embodiment of the utility model provides an above-mentioned at least one technical scheme who adopts can reach following beneficial effect:

through the embodiment of the utility model provides a LED drive module adopts first base plate and second base plate, will drive the electronic components of LED load and set up on first base plate, will provide the constant current IC chip of constant current for the LED load and paste and establish on the second base plate, and with first base plate and second base plate electric connection, make to form the constant current drive circuit between electronic components, LED load and the constant current IC chip on the one hand, can provide constant current for the LED load under the condition that the input voltage of LED load appears undulant, avoid the LED load to appear stroboscopic linearity; on the other hand, the constant-current IC chip is separately attached to the second substrate to form an independent constant-current module, the constant-current module can not only realize the heat dissipation of the constant-current IC chip so as to reduce the loss of the constant-current IC chip, but also can not influence the fixation of the electronic components for driving the LED load on the first substrate, so that the first substrate and the electronic components arranged on the first substrate can still be produced by adopting the traditional process.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a linear constant current driving circuit in the prior art;

fig. 2 is a schematic structural diagram of an LED driving module according to an embodiment of the present invention;

fig. 3 is an exploded view of an LED driving module according to an embodiment of the present invention;

fig. 4 is a schematic view of a connection relationship between components in an LED driving module according to an embodiment of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to solve the stroboscopic phenomenon caused by input voltage fluctuation, more and more lighting lamps adopt a linear constant-current driving circuit, as shown in fig. 1, alternating-current voltage is rectified by a rectifier bridge and then converted into direct-current voltage to be input to an input end of an LED load to supply power to the LED load, when the voltage input to the LED load fluctuates, the current flowing through the LED load also fluctuates, and further, light emitted by the LED load can generate stroboscopic phenomenon. At this moment, the linear constant current IC is connected to the output end of the LED load, and when the linear constant current IC operates in a constant current state, the linear constant current IC is equivalent to a variable resistor, and the equivalent resistance of the linear constant current IC increases with the increase of the input voltage and decreases with the decrease of the input voltage, so as to provide a constant current for the LED load, and thus, the LED load does not generate stroboflash. However, as the input voltage increases, the loss of the linear constant current IC increases, which requires heat dissipation of the linear constant current IC.

In view of this, the utility model provides a LED drive module and illumination lamps and lanterns to consume less cost and design space and solve the stroboscopic phenomenon of LED load.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 2 to 4, an embodiment of the present invention provides an LED driving module, which can be applied to all products that need to drive an LED load in a constant current manner, such as lighting fixtures. As shown in fig. 2 and 3, the LED driving module may include a first substrate 110, an electronic component 120 for driving an LED load (such as the LED load shown in fig. 1), and a constant current module 130 for supplying a constant current to the LED load.

The electronic component 120 is disposed on the first substrate 110, and as shown in fig. 4, the electronic component 120 is electrically connected to the input end of the LED load. The constant current module 130 at least includes a second substrate 131 and a constant current IC chip 132, the second substrate 131 is electrically connected to the first substrate 110, the constant current IC chip 132 is attached to the second substrate 131, and as shown in fig. 4, the constant current IC chip 132 is connected to an output terminal of the LED load.

Specifically, the electronic component 120 may include one or more components for driving the LED load, and fig. 2 and 3 show that the LED driving module includes the electronic components 120a to 120 e. For example, the electronic component 120 may include a diode (e.g., a rectifier bridge DB formed by the diode shown in fig. 1), a capacitor (e.g., a filter capacitor C shown in fig. 1), a fuse (e.g., a fuse F shown in fig. 1), an inductor, and other elements, which are not limited in this embodiment of the invention.

The electronic component 120 may be inserted and/or attached to the first substrate 110, for example, a plurality of holes are formed on the first substrate 110, the electronic components 120a to 120c are inserted into the holes on the first substrate 110, and the electronic component 120d and the electronic component 120e are attached to the first substrate 110. The electronic components 120 may be disposed at any position of the first substrate 110, for example, as shown in fig. 2, the electronic components 120a to 120c are disposed on a surface of the first substrate 110 facing the second substrate 131, and the

electronic components

120d and 120e are disposed on a surface of the first substrate 110 facing away from the second substrate 131. Therefore, the first substrate 110 and the electronic component 120 disposed thereon can be manufactured by a conventional process.

The second substrate 131 may be made of aluminum, ceramic, or other base material having a good heat dissipation effect.

The constant current IC chip 132 is a chip for outputting a constant current for supplying the constant current to the LED load.

Therefore, through the utility model discloses the LED drive module that the embodiment provided adopts first base plate 110 and second base plate 131, will drive the electronic components 120 of LED load and set up on first base plate 110, will provide constant current IC chip 132 of constant current for the LED load and paste and establish on second base plate 131, and with first base plate 110 and second base plate 131 electric connection, make to form the constant current drive circuit between electronic components 120, LED load and the constant current IC chip 132 on the one hand, can provide constant current for the LED load under the input voltage of LED load appears undulant condition, avoid the stroboscopic linearity to appear in the LED load; on the other hand, the constant current IC chip 132 is separately attached to the second substrate 131 to form an individual constant current module 130, and the constant current module 130 can not only dissipate heat of the constant current IC chip 132 to reduce loss of the constant current IC chip 132, but also does not affect the fixation of the electronic component 120 driving the LED load on the first substrate 110, so that the first substrate 110 and the electronic component 120 disposed thereon can still be manufactured by using the conventional process.

In the embodiment of the present invention, the constant current module 130 may further include other components for controlling the LED load current, for example, as shown in fig. 4, the constant current module 130 may further include a controller 135, the controller 135 is electrically connected to the control terminal of the constant current IC chip 132, and the controller is configured to control the constant current IC chip 132 to output the constant current.

In the embodiment of the present invention, the relative position between the first substrate 110 and the second substrate 131 can be set according to actual needs, for example, the angle between the first substrate 110 and the second substrate 131 can be any angle.

Alternatively, in order to further reduce the size of the LED driving module to reduce the occupation of the design space of the applied product by the LED driving module, as shown in fig. 2 and 3, the first substrate 110 and the second substrate 131 may be disposed opposite to each other and parallel to each other.

Further, in this case, in order to realize the electrical connection between the first substrate 110 and the second substrate 131 in a simpler manner, the second substrate 131 is further provided with a conductive element 133, and the second substrate 131 is electrically connected to the first substrate 110 through the conductive element 133.

The conductive element 133 may be any element having a conductive function, for example, the conductive element 133 may be one or a combination of a plurality of wires, plug terminals, electrical connectors, pins, and the like, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, the constant current IC chip 132 may be disposed on any surface of the second substrate 131. Alternatively, in order to further reduce the size of the LED driving module, as shown in fig. 2, the constant current IC chip 132 may be disposed on a surface of the second substrate 131 facing the first substrate 110.

In the embodiment of the present invention, as shown in fig. 2, the LED driving module further includes a housing 140, and the first substrate 110, the electronic component 120, and the constant current module 130 are disposed in the housing 140, so as to protect each component in the LED driving module.

In the embodiment of the present invention, the second substrate 131 may be disposed at any position in the housing 140. Alternatively, as shown in fig. 2, the surface of the second substrate 131 opposite to the surface of the constant current IC chip 132 is attached to the housing 140, so that the heat dissipation area of the constant current IC chip 132 can be increased, the heat dissipation effect of the constant current IC chip 132 can be enhanced, and the loss of the constant current IC chip 132 can be further reduced.

In the embodiment of the present invention, in order to make the second substrate 131 fully contact with the housing 140, so as to further improve the heat dissipation effect of the constant current IC chip 132, as shown in fig. 2, a heat conduction layer 134 is disposed between the second substrate 131 and the housing 140. The heat conducting layer 134 may be any material having adhesive and heat conducting functions, for example, the heat conducting layer 134 may be a heat conducting glue.

The embodiment of the utility model provides a still provide an illumination lamps and lanterns, this illumination lamps and lanterns include the LED load with the utility model discloses the LED drive module that any above-mentioned embodiment provided.

It should be noted that the lighting fixture in the embodiment of the present invention may include one or more LED loads, and to the condition of a plurality of LED loads, the plurality of LED loads may be connected in series and/or in parallel, and the embodiment of the present invention does not limit this.

Secondly, the lighting fixture in the embodiment of the present invention may be any type of lighting fixture, for example, may include but is not limited to: fan lamp, ceiling lamp, desk lamp, ornament lamp etc. the embodiment of the utility model provides a do not limit to this.

In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

Claims

1. An LED drive module, comprising:

a first substrate;

2. The LED driving module as recited in claim 1, wherein the second substrate is disposed opposite to the first substrate and parallel to the first substrate.

3. The LED driving module as claimed in claim 2, wherein the constant current IC chip is attached to a surface of the second substrate facing the first substrate.

4. The LED driving module according to claim 2, wherein a conductive element is disposed on the second substrate, and the second substrate is electrically connected to the first substrate through the conductive element.

5. The LED driving module according to claim 1, further comprising a housing, wherein the first substrate, the electronic component and the constant current module are disposed in the housing.

6. The LED driving module according to claim 5, wherein a surface of the second substrate opposite to the surface on which the constant current IC chip is disposed is attached to the housing.

7. The LED driving module according to claim 5, wherein a heat conducting layer is disposed between the second substrate and the housing.

8. The LED driving module according to any one of claims 1 to 7, wherein the electronic component is plugged and/or attached to the first substrate.

9. The LED driving module according to any one of claims 1 to 7, wherein the constant current module further comprises a controller, and the controller is electrically connected to the control end of the constant current IC chip to control the constant current IC chip to output a constant current.

10. A lighting fixture comprising an LED load and the LED driver module of any one of claims 1-9.