CN217037511U - Prevent protection circuit of LED light source damage - Google Patents
Prevent protection circuit of LED light source damage Download PDFInfo
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- CN217037511U CN217037511U CN202220656490.0U CN202220656490U CN217037511U CN 217037511 U CN217037511 U CN 217037511U CN 202220656490 U CN202220656490 U CN 202220656490U CN 217037511 U CN217037511 U CN 217037511U
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Abstract
The utility model provides a protection circuit for preventing an LED light source from being damaged, which comprises: the LED constant current driving power supply comprises an LED constant current driving power supply and at least one LED light source electrically connected with one end of the LED constant current driving power supply, wherein the other end of the LED constant current driving power supply is connected with a mains supply; wherein, prevent that protection circuit that LED light source damaged still includes: the LED voltage protection component is arranged in the LED light source loop and connected with the LED light source loop in series, and the LED voltage protection component is used for protecting the LED light source from being damaged by instantaneous high voltage. The utility model has the beneficial effects that: in the process of debugging the LED light source by hot plug for multiple times, the voltage change amplitude is large, and the LED voltage protection element can avoid the LED light source from being damaged under the condition; or the LED voltage protection element can avoid damaging the LED light source when the alternating current power supply has burst high-voltage pulse, and further the service life of the LED light source is prolonged.
Description
Technical Field
The utility model belongs to the technical field of LED light source driving circuits, and particularly relates to a protection circuit for preventing an LED light source from being damaged.
Background
With the continuous development of science and technology, the LED light source is used as a novel light source, has the characteristics of high luminous efficiency, high efficiency, energy conservation, long service life, controllable low voltage and the like, is widely applied to indoor and outdoor illumination in various fields, and then various LED light source driving circuits appear; however, the traditional LED light source circuit is composed of a driving power supply and an LED light source, the LED light source is electrically connected with the driving power supply, the driving power supply is connected to the commercial power supply firstly in the installation process of the LED light source, then the LED light source is connected to the driving circuit, if the LED light source and the driving circuit are installed and disconnected for a plurality of times, the LED light source can be damaged, or the LED light source and the driving circuit are in poor contact, the LED light source can be damaged, and certain troubles are caused to a user.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a protection circuit for preventing an LED light source from being damaged, wherein an LED voltage protection element is connected in series in an LED light source loop and used for protecting the LED light source from being damaged by instantaneous high voltage; or the LED voltage protection element can avoid damaging the LED light source when the alternating current power supply has burst high-voltage pulse, and further the service life of the LED light source is prolonged.
In order to solve the technical problems, the utility model provides the following technical scheme:
a protection circuit for protecting an LED light source from damage, comprising: the LED constant current driving power supply comprises an LED constant current driving power supply and at least one LED light source which is in conductive connection with one end of the LED constant current driving power supply, wherein the other end of the LED constant current driving power supply is connected with commercial power; wherein, prevent that protection circuit that LED light source damaged still includes: the LED voltage protection component is arranged in the LED light source loop and connected with the LED light source loop in series, and the LED voltage protection component is used for protecting the LED light source from being damaged by instantaneous high voltage.
As a preferable scheme of the protection circuit for preventing the LED light source from being damaged, the LED voltage protection element is an NTC negative temperature coefficient thermistor.
As a preferable scheme of the protection circuit for preventing the LED light source from being damaged, the LED voltage protection element is disposed in an LED output power supply loop in the LED constant current driving power supply and is connected in series with the LED output power supply loop in the LED constant current driving power supply.
As a preferable configuration of the protection circuit for preventing the LED light source from being damaged, the LED voltage protection element is provided at the positive electrode of the LED light source and connected in series with the positive electrode of the LED light source.
As a preferable configuration of the protection circuit for preventing the LED light source from being damaged, the LED voltage protection element is provided at a negative electrode of the LED light source and is connected in series with the negative electrode of the LED light source.
As a preferable scheme of the protection circuit for preventing the LED light source from being damaged, the LED voltage protection element is disposed between two adjacent LED light sources and is connected in series with each of the two adjacent LED light sources.
As an optimal scheme of a protection circuit for preventing the LED light source from being damaged, the LED light source is an LED lamp strip or an LED lamp panel.
As a preferred scheme of the protection circuit for preventing the LED light source from being damaged, the LED light source is connected with the LED constant current driving power supply in a plugging and unplugging manner through a male connector and a female connector.
The utility model has the beneficial effects that:
the LED voltage protection element is connected in series in the LED light source loop and used for protecting the LED light source from being damaged by instantaneous high voltage, and in the actual use process, the LED light source needs to be debugged by hot plugging for many times, wherein the hot plugging is to connect the LED constant-current driving power supply with mains supply and then electrically connect the LED constant-current power supply with the LED light source; or the LED voltage protection element can avoid damaging the LED light source when the alternating current power supply has burst high-voltage pulse, and further the service life of the LED light source is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts, and all belong to the protection scope of the present invention, wherein:
fig. 1 is a schematic block diagram of a protection circuit for preventing an LED light source from being damaged according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
With the continuous development of science and technology, the LED light source is used as a novel light source, has the characteristics of high luminous efficiency, high efficiency, energy conservation, long service life, controllable low voltage and the like, is widely applied to indoor and outdoor illumination in various fields, and various LED light source driving circuits appear along with the development of the LED light source driving circuits; however, the traditional LED light source circuit is composed of a driving power supply and an LED light source, the LED light source is electrically connected with the driving power supply, the driving power supply is connected to the commercial power supply firstly in the installation process of the LED light source, then the LED light source is connected to the driving circuit, if the LED light source and the driving circuit are installed and disconnected for a plurality of times, the LED light source can be damaged, or the LED light source and the driving circuit are in poor contact, the LED light source can be damaged, and certain troubles are caused to a user.
In the present invention, as shown in fig. 1, an embodiment of the present invention provides a protection circuit for preventing an LED light source from being damaged, including: the LED constant current driving power supply comprises an LED constant current driving power supply 10 and at least one LED light source 20 which is in conductive connection with one end of the LED constant current driving power supply 10, wherein the other end of the LED constant current driving power supply 10 is connected with a mains supply;
wherein, prevent that protection circuit that LED light source damaged still includes: LED voltage protection component 30, LED voltage protection component 30 locate in the LED light source return circuit and with LED light source return circuit series connection, LED voltage protection component 30 is used for protecting LED light source 20 avoids receiving high voltage in the twinkling of an eye to damage.
In the utility model, the LED voltage protection element 30 is connected in series in the LED light source loop, and by adopting the scheme, in the actual use process, the LED light source 20 is sometimes required to be debugged by hot plugging for many times, the LED constant current driving power supply 10 is firstly connected with a mains supply, and then the LED constant current power supply is electrically connected with the LED light source 20, the voltage variation amplitude is large in the debugging process, and the LED voltage protection element 30 can prevent the LED light source 20 from being damaged under the condition; or the LED voltage protection element 30 can prevent the LED light source 20 from being damaged when the ac power supply has a burst high voltage pulse, so as to further prolong the service life of the LED light source 20.
Specifically, the LED voltage protection element 30 is an NTC thermistor, and is not limited to the present invention, and the LED voltage protection element 30 may also be other electronic elements having the same working principle as the NTC thermistor, as long as the LED voltage protection element can realize that the resistance value is lower when the temperature is higher, and the present invention is not limited thereto.
As for the installation position of the LED voltage protection element 30, the LED voltage protection element 30 is disposed in an LED output power circuit in the LED constant current driving power supply 10 and connected in series with the LED output power circuit in the LED constant current driving power supply 10, but not limited to this embodiment, in other alternative embodiments of the present invention, the LED voltage protection element 30 may also be disposed in an anode of the LED light source 20 and connected in series with an anode of the LED light source 20, or the LED voltage protection element 30 is disposed in a cathode of the LED light source 20 and connected in series with a cathode of the LED light source 20, or the LED voltage protection element 30 is disposed between two adjacent LED light sources 20 and connected in series with each of the LED light sources 20 of the two adjacent LED light sources 20, which is not limited in this invention.
In the present invention, the LED light source 20 is an LED light strip or an LED lamp panel, which is not limited in the present invention.
In order to connect the LED light source 20 with the LED constant current driving power supply 10, the LED constant current driving power supply 10 is connected by plugging and unplugging a male connector and a female connector, so that the LED light source 20 and the LED constant current driving power supply 10 are quickly connected, and the installation is convenient and quick.
The present invention has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the utility model, and these embodiments are still within the scope of the utility model.
Claims (8)
1. A protection circuit for preventing an LED light source from being damaged is characterized by comprising: the LED constant current driving power supply comprises an LED constant current driving power supply and at least one LED light source which is in conductive connection with one end of the LED constant current driving power supply, wherein the other end of the LED constant current driving power supply is connected with commercial power;
wherein, prevent that protection circuit that LED light source damaged still includes: the LED voltage protection component is arranged in the LED light source loop and connected with the LED light source loop in series, and the LED voltage protection component is used for protecting the LED light source from being damaged by instantaneous high voltage.
2. The protection circuit of claim 1, wherein the LED voltage protection element is an NTC negative temperature coefficient thermistor.
3. The protection circuit for preventing the LED light source from being damaged as claimed in claim 2, wherein the LED voltage protection element is disposed in an LED output power circuit in the LED constant current driving power supply and connected in series with the LED output power circuit in the LED constant current driving power supply.
4. The protection circuit of claim 2, wherein the LED voltage protection element is disposed on and connected in series with the anode of the LED light source.
5. The protection circuit of claim 2, wherein the LED voltage protection element is disposed on and connected in series with a negative electrode of the LED light source.
6. The protection circuit of claim 2, wherein the LED voltage protection element is disposed between two adjacent LED light sources and is connected in series with each of the two adjacent LED light sources.
7. The protection circuit for preventing the damage of the LED light source according to claim 1, wherein the LED light source is an LED lamp strip or an LED lamp panel.
8. The protection circuit for preventing the LED light source from being damaged according to claim 1, wherein the LED light source is connected with the LED constant current driving power supply through a male connector and a female connector in a plugging mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220656490.0U CN217037511U (en) | 2022-03-24 | 2022-03-24 | Prevent protection circuit of LED light source damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220656490.0U CN217037511U (en) | 2022-03-24 | 2022-03-24 | Prevent protection circuit of LED light source damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217037511U true CN217037511U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220656490.0U Active CN217037511U (en) | 2022-03-24 | 2022-03-24 | Prevent protection circuit of LED light source damage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217037511U (en) |
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2022
- 2022-03-24 CN CN202220656490.0U patent/CN217037511U/en active Active
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