CN203784679U

CN203784679U - Passive non-polarity LED (light emitting diode) lamp tube

Info

Publication number: CN203784679U
Application number: CN201420090133.8U
Authority: CN
Inventors: 张荣民; 张恩诚
Original assignee: TIANJIN JINMA PHOTOELECTRIC CO Ltd
Current assignee: TIANJIN JINMA PHOTOELECTRIC CO Ltd
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2014-08-20
Anticipated expiration: 2024-02-28

Abstract

The utility model discloses a passive non-polarity LED (light emitting diode) lamp tube. The passive non-polarity LED lamp tube comprises conductive pillars arranged at two ends, a PCB (printed circuit board), an LED light source module arranged on the PCB, and a bridge rectifier fixedly connected with the PCB; two ends of the LED light source module are respectively connected to two output ends of the bridge rectifier; the conductive pillars at two ends are respectively connected to the input end of the bridge rectifier; the appearance of the passive non-polarity lamp tube is same as that of a common standard lamp tube, is provided with a metal electrode and only provided with the LED light source module without an electronic ballast part at the interior; one rectifying bridge stack is additionally arranged on the LED light source module in the lamp tube, so the LED has no polarity. When the lamp tube is replaced, the polarity direction does not need to be considered. Meanwhile, by adopting the rectifying bridge stack, the LED light source module can be protected and the service life is prolonged.

Description

Passive Nonpolarity LED lamp tube

Technical field

The present invention relates to lighting technical field, particularly relate to a kind of passive Nonpolarity LED lamp tube.

Background technology

Fluorescent lamp is as cold light source, and the conventional incandescent of comparing streetlamp energy-saving, is therefore widely used in industry and domestic lighting, lamp socket, lamp bracket and the lamp box supporting with it etc., and accessory has formed standard.Along with the development of new-type light source led, it is inevitable that its application at lighting field has become.

The light transmittance efficiency of LED lamp type and traditional fluorescent lamp greatly differs from each other at present, therefore need to be designed to fluorescent lamp shape, it is generally divided into two classes, one class is fluorescent tube built-in drive circuit, and it can directly drive illumination by the direct energy supply of alternating current, and another kind of is single flow LED fluorescent lamp, it can only be by direct current supply, cannot directly receive in electric main and use, while use because of this type of LED fluorescent tube, need to connect an external power supply in the outside of fluorescent tube and convert alternating current to direct current to realize.An independently built-in drive circuit is set in fluorescent tube, need in the middle of whole fluorescent tube, finds for the position of settling this built-in drive circuit, not only processing technology trouble but also processing cost are also relative higher, have also increased use cost simultaneously.

But at an external power supply of the outside connection of fluorescent tube, because ballast or other power supply apparatus only supply direct current, this has just produced positive-negative polarity on lamp socket, when being installed, fluorescent tube just need to distinguish directionality, so must indicate polarity on lamp socket, otherwise electrode connection error, can not light fluorescent tube yet, this just gives to install and use and makes troubles.

Summary of the invention

The object of the invention is for the technological deficiency existing in prior art, and a kind of passive Nonpolarity LED lamp tube of being convenient to installation is provided.

For realizing the technical scheme that object of the present invention adopts be:

A kind of passive Nonpolarity LED lamp tube, comprise be arranged on two ends conductive pole, pcb board, be fixedly installed on the LED light source module on pcb board, and the bridge rectifier being fixedly connected with described pcb board, described LED light source module two ends are connected to respectively two outputs of bridge rectifier, and the conductive pole at described two ends is connected to respectively the input of bridge rectifier.

Described Nonpolarity LED lamp tube is T5 or T8 fluorescent tube.

Described bridge rectifier is MB6S bridge heap.

Compared with prior art, the invention has the beneficial effects as follows:

The outward appearance of passive nonpolarity fluorescent tube is the same with general standard fluorescent tube, have metal electrode, but inside do not have electronic ballast device, only has LED light source module yet, and in LED light source module in fluorescent tube, install a rectifier bridge stack additional, just polarity not of LED like this.So in the time replacing fluorescent tube, just do not need to consider the problem of polar orientation.Meanwhile, rectifier bridge stack also can be protected LED light source module, improves its service life.

Brief description of the drawings

Figure 1 shows that structural representation of the present utility model;

Figure 2 shows that electrical block diagram of the present utility model.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

As illustrated in fig. 1 and 2, passive Nonpolarity LED lamp tube of the present utility model comprises and is arranged on cylindrical shape cover body, be arranged on the lamp holder at cylindrical shape cover body two ends, and be fixedly connected with and be separately positioned on one by one two groups of conductive poles 1 at two ends with lamp holder, be arranged on the pcb board 2 in cover body, be fixedly installed on the LED light source module 3 on pcb board, and the bridge rectifier 4 being fixedly connected with described pcb board, wherein said LED light source module comprises multiple LED chips 5, it is by design series connection or Parallel Design, the positive pole of described LED light source module and negative pole are connected to respectively two outputs of bridge rectifier, the conductive pole at described two ends is connected to respectively the input of bridge rectifier, as can be by realizing connection in PCBShang Tong road.

Specifically, described Nonpolarity LED lamp tube is T5 or T8 fluorescent tube, in the fluorescent tube of T5 and T8, if power driving circuit is set, space requirement and heat radiation requirement meeting bring serious challenge to manufacture craft, and the utility model adopts the design that power circuit is not set in inside, and only adopt a bridge rectifier to be used for accepting two ends conductive pole and LED light source module, demand to polarity can effectively avoid installing time, arbitrary end inserts accordingly in lamp socket and all can directly light, and improves convenience is installed.

Specifically, described bridge rectifier is SMD MB6S bridge heap, it should be noted that, although the utility model adopts bridge heap, but it is only the impact for eliminating both positive and negative polarity, fluorescent tube of the present utility model is to be operated under DC current operating mode, and DC current is provided by lamp socket, adopts external electronic ballast device.

The utility model separates LED fluorescent tube with electric ballast (also can be semiconductor control electric ballast or Switching Power Supply driving etc.), user can enjoy more cheap price, only need where necessary to change fluorescent tube or electric ballast, effectively reduce unnecessary burden.Electric ballast independently becomes an external unit, and disposes connector and can dock.Can be arranged on the optional position of grid lamp disc, can also be attached in the internal structure of other light fixtures.The outward appearance of passive nonpolarity fluorescent tube is the same with general standard fluorescent tube, have metal electrode, but inside do not have electronic ballast device, only has LED light source module yet, and in LED light source module in fluorescent tube, install a rectifier bridge stack additional, just polarity not of LED like this.So in the time replacing fluorescent tube, just do not need to consider the problem of polarity.Meanwhile, rectifier bridge stack also can be protected LED light source module, improves its service life.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. a passive Nonpolarity LED lamp tube, it is characterized in that, comprise be arranged on two ends conductive pole, pcb board, be fixedly installed on the LED light source module on pcb board, and the bridge rectifier being fixedly connected with described pcb board, described LED light source module two ends are connected to respectively two outputs of bridge rectifier, and the conductive pole at described two ends is connected to respectively the input of bridge rectifier.

2. passive Nonpolarity LED lamp tube as claimed in claim 1, is characterized in that, described Nonpolarity LED lamp tube is T5 or T8 fluorescent tube.

3. passive Nonpolarity LED lamp tube as claimed in claim 1, is characterized in that, described bridge rectifier is MB6S bridge heap.