CN201803348U

CN201803348U - Temperature control and management system of light emitting diode (LED) module

Info

Publication number: CN201803348U
Application number: CN2010205309875U
Authority: CN
Inventors: 张柏灏; 孙颂贤
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2010-09-16
Filing date: 2010-09-16
Publication date: 2011-04-20
Anticipated expiration: 2020-09-16

Abstract

The utility model provides a temperature control and management system of a light emitting diode (LED) module, which comprises at least one LED unit, at least one fan, at least one temperature sensor and a controller, wherein the LED unit comprises a plurality of LED chips, the fan is arranged at one side of the corresponding LED unit and is used for realizing forced heat radiation on the LED unit, the temperature sensor is arranged in a position adjacent to the fan, and is used for detecting the external environment temperature and the ambient environment temperature around each fan and generating temperature sensing signals, the controller comprises a microprocessor, a power supply and an interface circuit, and is respectively and electrically connected with the fan, the temperature sensor and the microprocessor, the power supply is respectively and electrically connected with the fan and the LED unit, and the microprocessor generates driving signals according to the temperature sensing signals to control the rotating speed of the fan. Through the technical scheme of the utility model, each LED unit in the system can be maintained at the same work temperature, so the uniform and effective heat radiation effect can be realized.

Description

The temperature control-management system of led module

Technical field

The utility model relates to a kind of temperature control-management system of led module, and outstanding reference and a kind of each LED unit that can allow maintain identical operating temperature, and can reach the temperature control-management system of the led module of even, effective radiating effect.

Background technology

In recent years, along with light emitting diode (Light Emitting diode, hereinafter to be referred as LED) the developing rapidly of emerging Lighting Industry, LED has been surpassed or near the energy-conserving light source of conventional bulb at aspects such as brightness, power, life-span, power consumption, reaction rates, thereby, make LED begin to replace conventional bulb at present gradually, as: LED in fields such as light fixture, view, billboard, room lightings, all gradually begin obtain using in a large number and widely.

Wherein, with the LED light fixture is example, when the LED light fixture is in running order, because it is not high that electric energy converts the efficient of luminous energy to, the a plurality of LED unit that comprises in the LED light fixture can produce high heat, and, these heats can be hoarded in this LED light fixture, and cause LED unit wherein to be absorbed in unsure state thus, as: cause the LED unit light decay, brightness reduction to occur, and the phenomenon that shortens service life, therefore, how the heat that the LED unit is produced is derived fast, and having become needs a major issue facing in the LED application process.

And in existing technical scheme, the general modal radiating mode of LED light fixture, be to take a plurality of radiating fins to be set to dispel the heat at the back side of its each included LED unit, but it still is extremely limited only relying on the effect that radiating fin dispels the heat, so, just further on radiating fin, install a fan additional and realize forced heat radiation.

The inventor finds that there is following defective at least in prior art in realizing process of the present utility model:

Though general LED light fixture can reach heat radiation function by above-mentioned radiator and fan, radiating effect is but also not obvious, and can't allow each LED unit reach the purpose of Homogeneouslly-radiating, therefore, described LED light fixture is easily because of the temperature of environment, what of heat humidity and each the LED unit that is wherein comprised produce, make the conduction convection current of LED lamp interior heat occur changing, cause each LED cell operation temperature very big measures of dispersion (being that each LED unit can't maintain identical operating temperature) to occur, and then, shorten the service life of some LED unit, and cause the brightness of each LED unit and attenuation to differ from one another.

In sum, the shortcoming that prior art can be existed is summed up as follows:

1, the heat radiation between the inner each several part can't reach even;

2, shorten service life;

3, each LED unit can't maintain identical operating temperature and attenuation.

Therefore, how to solve problem and defective that above-mentioned prior art exists, the relevant manufacturer that is inventor of the present utility model and is engaged in the industry desires most ardently the direction place that research improves.

The utility model content

In order effectively to solve the above problems, main purpose of the present utility model is to provide a kind of temperature control-management system with the led module that reaches the Homogeneouslly-radiating effect.

Secondary objective of the present utility model be to provide a kind of have make each LED unit all can maintain the temperature control-management system of the led module of identical operating temperature.

For reaching above-mentioned purpose, the utility model provides a kind of temperature control-management system of led module, and it comprises: at least one LED unit has a plurality of led chips; At least one fan is arranged on a side of corresponding LED unit, described LED unit is dispelled the heat in order to forcing; At least one temperature sensor is provided in the fan position adjacent, is used to detect the temperature of ambient temperature and described each fan surrounding environment, to produce a temperature sensing signal; And a control device, comprise: an interface circuit is electrically connected at described fan and described temperature sensor respectively; A power supply unit is electrically connected at described fan and described LED unit respectively; A microprocessor is electrically connected at described interface circuit, and produces a rotating speed that drives the described fan of signal controlling according to described temperature sensing signal.

Combine the technical scheme of the temperature control-management system of the led module that is constituted by what use that the utility model proposed by LED unit, fan, temperature sensor and control device, make each the LED unit in the system can both maintain identical operating temperature, thereby, reach even, effective radiating effect.

Description of drawings

The structural representation of the temperature control-management system of a kind of led module that Fig. 1 is proposed for the utility model embodiment;

The structural representation of the temperature control-management system of the another kind of led module that Fig. 2 is proposed for the utility model embodiment.

Marginal data

1, led module 31, microprocessor

10, LED unit 32, power supply unit

20, fan 15 40, temperature sensor

3, control device 5, light-emitting device

30, interface circuit 6, terminal installation

The specific embodiment

To achieve these goals, existing in conjunction with the accompanying drawings and concrete preferred embodiment, structure that the technical solution of the utility model proposed and the characteristic on the function are described.

As depicted in figs. 1 and 2; the utility model proposes a kind of temperature control-management system of led module; in the preferred embodiment that the utility model proposed; system comprises at least one LED (Light Emitting Diode; light emitting diode) unit 10; at least one fan 20; at least one temperature sensor 40 and a control device 3; this LED unit 10 has a plurality of led chips; and each LED unit 10 constitutes a led module 1; led module 1 is installed on the light-emitting device 5; in actual applications; light-emitting device 5 is specifically as follows the LED billboard; entities such as LED light fixture; in this preferred embodiment, be specially the LED light fixture with light-emitting device 5 and describe, but in concrete application scenarios; the concrete entity type of light-emitting device 5 is not limited thereto, and such variation can't influence protection domain of the present utility model.

Fan 20 is arranged on a side of the LED unit 10 corresponding with it, in order to force 10 heat radiations of this LED unit; Aforementioned temperature sensor 40 is provided in fan 20 position adjacent, it is corresponding with this fan 20 that this temperature sensor 40 is set, and, this temperature sensor 40 is used to detect the temperature of ambient temperature and these each fan 20 surrounding environment, be used to produce a temperature sensing signal, send control device 3 to.

On the other hand, as shown in Figure 2, in concrete enforcement scene, the user can be in advance according to the demand of spaces and appearance design in the light-emitting device 5, with fan 20 and temperature sensor 40, and LED unit 10 is installed in the light-emitting device 5 together, i.e. all corresponding fan 20 of a side of each the LED unit 10 in the light-emitting device 5, and these fan 20 position adjacent have all been disposed a corresponding with it temperature sensor 40.

Aforementioned control device 3 comprises an interface circuit (Interface circuit) 30, a microprocessor (Micro Controller Unit, MCU) 31 and power supply units 32, this interface circuit 30 electrically connects respectively and fan 20, temperature sensor 40 and microprocessor 31, thereby, this interface circuit 30 can be used as microprocessor 31, transmit the media of signal between temperature sensor 40 and the fan 20 each other, for example: the signal of temperature sensor 40 is an analog signal, converts to the data signal that becomes microprocessor 31 computings but can see through interface circuit 30.

This power supply unit 32 is electrically connected at fan 20 and LED unit 10 respectively, and an input power supply, and this input power supply is used for to fan 20 and LED unit 10 supply power supplys; Aforesaid microprocessor 31 produces one according to this temperature sensing signal and drives signal, and this driving signal (this signal is a pwm signal) is that 31 pairs of temperature sensing signal of microprocessor are done the signal that is produced after the computing, is used to control and adjust the rotating speed of fan 20; Hence one can see that, microprocessor 31 receives temperature sensing signal by interface circuit 30, learn the temperature (being the temperature of aforementioned ambient temperature and each fan 20 surrounding environment) at each position, and after simultaneously temperature sensing signal being done computing, produce and drive signal, transmit this by interface circuit 30 then and drive signal to fan 20, to control the rotating speed of each fan 20, thereby, suitably adjust the air quantity that each fan 20 corresponding each LED unit 10 of control are discharged, to impel each LED unit 10 can both maintain identical operating temperature and roughly the same attenuation, to reach even, effective radiating effect.

Further, as shown in Figure 2, this microprocessor 31 also has the function of giving a warning, it is microprocessor 31 is learnt each position according to temperature sensing signal temperature, and the temperature at each position compared with the design temperature (for example design temperature is 70 degree) in this microprocessor 31, if the temperature at a position surpasses this design temperature, then send a caution signal to a terminal installation 6 that is connected with this microprocessor 31, it is unusual to make terminal installation 6 learn that from the caution signal that receives this position temperature takes place, and then, the fan 20 that can determine corresponding this position may be impaired, so that maintenance immediately.

Combine the technical scheme of the temperature control-management system of the led module that is constituted by what use that the utility model proposed by LED unit 10, fan 20, temperature sensor 40 and control device 3, make each the LED unit 10 in the system can both maintain identical operating temperature, accordingly, identical attenuation is also roughly kept in each LED unit 10, thereby, make that led module 1 reaches evenly, effective radiating effect.

In sum, compared with prior art, the technical scheme that the utility model proposed has the following advantages:

1, can reach the effect of Homogeneouslly-radiating;

2, make each LED unit can both maintain identical operating temperature, and reach roughly the same attenuation.

The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model embodiment principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection domain of the present utility model.

It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be integrated in one, and also can separate deployment; A module can be merged into, also a plurality of submodules can be further split into.

More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.

Claims

1. the temperature control-management system of a led module is characterized in that, comprising:

At least one LED unit has a plurality of led chips;

At least one fan is arranged on a side of corresponding LED unit, described LED unit is dispelled the heat in order to forcing;

At least one temperature sensor is provided in the fan position adjacent, is used to detect the temperature of ambient temperature and described each fan surrounding environment, to produce a temperature sensing signal; And,

A control device comprises:

An interface circuit is electrically connected at described fan and described temperature sensor respectively;

A power supply unit is electrically connected at described fan and described LED unit respectively;

A microprocessor is electrically connected at described interface circuit, and produces a rotating speed that drives the described fan of signal controlling according to described temperature sensing signal.

2. the temperature control-management system of led module as claimed in claim 1 is characterized in that, each described LED unit constitutes a led module.

3. the temperature control-management system of led module as claimed in claim 2 is characterized in that, described led module is installed on the light-emitting device.

4. the temperature control-management system of led module as claimed in claim 1, it is characterized in that, described microprocessor is learnt the temperature at each position according to temperature sensing signal, and the temperature at each position and a design temperature in the described microprocessor compared, if the temperature at a position surpasses described design temperature, then send a caution signal to a terminal installation that is connected with described microprocessor.

5. the temperature control-management system of led module as claimed in claim 1 is characterized in that, described power supply unit is electrically connected at an input power supply, is used to supply power supply and gives each described fan and described LED unit.