CN201335340Y

CN201335340Y - Led illuminating device

Info

Publication number: CN201335340Y
Application number: CNU200920129733XU
Authority: CN
Inventors: 钟雄; 何耀颐
Original assignee: SICHUAN JM SOLID-STATE LIGHTING Co Ltd
Current assignee: Sichuan Jiuzhou Optoelectronics Technology Co Ltd
Priority date: 2009-01-21
Filing date: 2009-01-21
Publication date: 2009-10-28
Anticipated expiration: 2019-01-21

Abstract

The utility model discloses an LED illuminating device which comprises a driving power and an LED light source. The LED illuminating device is divided into a first device including the driving power and a second device including the LED light source; a first connector is arranged on the first device; a second connector matched with the first connector is arranged on the second device; and the first connector is electrically connected to the second connector. By adopting the scheme that the driving power is separated from the LED light source, the utility model has the advantages of environmental protection, energy conservation, long service life and good working performance.

Description

The LED lighting device

Technical field

The utility model relates to a kind of lighting device, refers in particular to a kind of light emitting diode (LightEmitting Diode; LED) lighting device.

Background technology

Owing to have plurality of advantages such as low energy consumption, high light efficiency, long service life, the LED lighting device replaces traditional fluorescence lamp lighting device and incandescent lighting device gradually, and is widely used in the illumination of different industries, different places.

Existing LED lighting device, its driving power is designed to an integral body that combines with lighting source, and cause the LED lighting device of the type structure to have following deficiency: one, in general, the mean free error time of driving power (Mean Time Between Failure; MTBF) be 350,000 hours, and be 50,000 hours the service life of led light source, and driving power and led light source are designed to one, makes to be subject to the service life of led light source the service life of driving power, caused the waste of resource, also is unfavorable for environmental protection and energy saving; The two, driving power and led light source are heater, and both are designed to one, and the accumulation of heat that is produced is not easy to distribute, and this certainly will influence the service life of LED lighting device; The three, driving light source is in close proximity to lighting source, can be interfering with each other when both work, and influence its function.

Summary of the invention

The utility model is to overcome the existing existing defective of LED lighting device, provides a kind of environmental protection and energy saving, long service life and service behaviour good LED lighting device.

For achieving the above object, the utility model adopts following technical scheme: a kind of LED lighting device, include a driving power and a led light source, it is divided into second device that first device and that includes described driving power includes described led light source, described first device is provided with first connector, described second device is provided with second connector with described first connector coupling, and described first connector is electrically connected on described second connector.

In the above-mentioned LED lighting device, preferably, described first connector adopts plug and described second connector employing socket, and perhaps described first connector adopts socket and described second connector employing plug.

In the above-mentioned LED lighting device, described first device is made of described driving power, and described first connector is arranged at the output of described driving power; Described second device is made of the constant-current drive circuit and the described led light source that connect in turn, and described second connector is arranged at the input of described constant-current drive circuit.

In the above-mentioned LED lighting device, another embodiment is, described first device is made of described driving power and the constant-current drive circuit that is attached thereto, and described first connector is arranged at the output of described constant-current drive circuit; Described second device is made of described led light source, and described second connector is arranged at the input of described led light source.

In the above-mentioned LED lighting device, described driving power can be the AC/DC power supply, also can be the DC/DC power supply.

The beneficial effects of the utility model are: the driving power of LED lighting device and led light source separate design, after the life-span, short led light source damaged, can change led light source separately and get final product, and need not discarded still spendable driving power, avoid the waste of resource, meet the requirement of environmental protection and energy saving; Driving power separates with led light source, and the heat that is produced when both work can not accumulated, and reduces the probability that the LED lighting device is in the hot operation state, helps prolonging the service life of entire lighting device; The distance that driving power and lighting source are certain at interval, it is interfering with each other and influence the situation of its function when work to avoid occurring both.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described further.

Fig. 1 is the structural representation of the utility model LED lighting device.

Fig. 2 is the structural representation of the utility model LED LED illumination device light source.

Fig. 3 is the schematic diagram that the utility model is applied to subway carriage.

Fig. 4 is the structural representation of another embodiment of the utility model LED lighting device.

The specific embodiment

The utility model discloses a kind of LED lighting device, can be used in indoor and outdoor lighting such as occasions such as subway carriage, offices, it is divided into two parts that are electrically connected but can separate certain distance with driving power and lighting source, is subject to defectives such as light source life, the easy accumulation of heat to solve the existing existing power source life of LED lighting device.

With reference to shown in Figure 1, it is structural representation of the present utility model, this LED lighting device 10 includes a driving power 100, a constant-current drive circuit 110 and a led light source 120 that electrically connects in turn, wherein, output at driving power 100 is provided with one first connector 130, input at constant-current drive circuit 110 is provided with one second connector 140, realizes being connected of driving power 100 and constant-current drive circuit 110 by first connector 130 and the electric connection of second connector 140.Driving power 100 can be the AC/DC power supply, and its input is connected in the AC power such as civil power etc., and AC rectification is filtered into behind the direct current as the input of constant-current circuit, does to be used for driving LED light source 120 after constant current is handled through constant-current drive circuit 110 again; Driving power 100 also can be the DC/DC power supply, its direct current that will come from upstream side boost or step-down and voltage stabilizing after as the input of constant-current drive circuit 110, after constant-current drive circuit 110 is handled, be used for driving LED light source 120 again.

Like this, LED lighting device 10 is divided into 30 two parts of second device that first device 20 and that includes driving power 100 includes constant-current drive circuit 110 and led light source 120, first device 20 is electrically connected with second device 30 by first connector 130, second connector 140, so, driving power 100 and led light source can be arranged in 120 minutes, and need not to be designed to one.

In the application of reality, can be by prolonging the length that is connected lead between length that is connected lead between driving power 100 and first connector 130 and/or prolongation constant-current drive circuit 110 and second connector 140, and make the power supply of LED lighting device 10 and light source can separate enough distances.

With reference to shown in Figure 2, led light source 120 is connected in series by a plurality of LED121 and constitutes.Certainly, in order to guarantee the operate as normal of led light source 120, can be on each LED121 a forward bypass diode in parallel, or reverse parallel connection one Zener diode, it can play the effect of communication line when LED121 is damaged, avoid occurring damaging the situation that causes the whole LED string to extinguish because of a LED121.

Below in conjunction with Fig. 3 a kind of application of the utility model in subway carriage is described, the constituting first device by

driving power

100 and 20 be fixed in the compartment interlayer 300 of LED lighting device 10, and second device 30 that constant-current drive circuit 110 and led light source 120 constitutes can be integrated and is designed to the tabular top of interior 320 of being fixed in by skewback support 310 to play the usefulness of illumination, first connector that self-driven power supply 100 is drawn is connected in second connector of drawing from constant-current drive circuit 110, like this, the power supply of then realizing LED lighting device 10 separates setting with light source.

Preferably, first connector 130 adopts plugs and second connector 140 adopts the socket that matches, and connects by inserting mode, more meets people's operating habit, also is convenient to first device 20 and second and installs 30 combination or separate.Really, also can adopt first connector 130 to be the scheme of plug for socket second connector 140.

With reference to shown in Figure 4, it is the structural representation of another embodiment of the utility model, LED lighting device 10 comprises a driving power 100, a constant-current drive circuit 110 and a led light source 120, itself and difference embodiment illustrated in fig. 1 are: first connector 130 is arranged at the output of constant-current drive circuit 110, and second connector 140 is arranged at the input of led light source 120, thereby, driving power 100 and constant-current drive circuit 110 constitute first device 20 of LED lighting device 10, and led light source 120 then constitutes second device 30.

Above-mentioned only is preferred embodiment of the present utility model; but not the utility model is done any pro forma restriction; those of ordinary skills can be changed on the basis of the foregoing description or be modified; for example led light source is used instead by a plurality of LED parallel connections or series-parallel connection and is constituted (certainly; the difference of load LED connected mode; need the drive circuit correct); perhaps increase feedback circuit or the like; all equivalent variations or modifications of being done in the claim scope all should fall within the utility model protection domain.

Claims

1, a kind of LED lighting device, include a driving power and a led light source, it is characterized in that: described LED lighting device is divided into second device that first device and that includes described driving power includes described led light source, described first device is provided with first connector, described second device is provided with second connector with described first connector coupling, and described first connector is electrically connected on described second connector.

2, LED lighting device as claimed in claim 1 is characterized in that: in described first connector and second connector, one is socket, and another is the plug that mates with socket.

3, LED lighting device as claimed in claim 1 or 2 is characterized in that: described first device is made of described driving power, and described first connector is arranged at the output of described driving power; Described second device is made of the constant-current drive circuit and the described led light source that connect in turn, and described second connector is arranged at the input of described constant-current drive circuit.

4, LED lighting device as claimed in claim 1 or 2 is characterized in that: described first device is made of described driving power and the constant-current drive circuit that is attached thereto, and described first connector is arranged at the output of described constant-current drive circuit; Described second device is made of described led light source, and described second connector is arranged at the input of described led light source.

5, LED lighting device as claimed in claim 1 or 2 is characterized in that: described driving power is AC/DC power supply or DC/DC power supply.