CN203686674U - Long-life tube-in-tube energy-saving lamp - Google Patents

Abstract

The utility model belongs to the technical field of the electricity-saving lamp, especially, relate to a long-life energy-saving lamp in pipe, including clear glass sleeve pipe, three primary colors luminotron, set up in the cutting ferrule at clear glass sleeve pipe both ends and set up in the guide pillar of cutting ferrule one end, be provided with the rectifier in the cutting ferrule, be provided with the end cap between clear glass sleeve pipe and the cutting ferrule, on the both ends of three primary colors luminotron were fixed in the end cap, all be provided with the louvre on end cap and the cutting ferrule, install the rectification control circuit board in the rectifier, the rectification control circuit board is connected with three. Compared with the prior art, the utility model discloses following beneficial effect has at least: the radiating holes are formed in the plug and the clamping sleeve, so that the radiating effect of the energy-saving lamp can be greatly improved; by adding the passive power factor compensation circuit into the circuit of the rectification control circuit board, the flow of reactive power can be reduced, and the electric energy loss is reduced, so that the service life of the lamp tube is prolonged, and the luminous stability is improved.

Description

Long-life tube-in-tube energy-saving lamps

technical field

The utility model belongs to the technical field of energy-saving lamps, in particular to a long-life tube-in-tube energy-saving lamp.

Background technique

Energy-saving lamps are lamps that use high-brightness white light-emitting diodes as light sources. They have many advantages such as high luminous efficiency, low power consumption, long life, easy control, maintenance-free, safety and environmental protection, etc. It is a new generation of solid cold light source, light color Soft, bright, colorful, low loss, low energy consumption, suitable for long-term lighting in various public places such as homes, shopping malls, banks, hospitals, hotels and restaurants.

Among them, the tube-in-tube energy-saving lamp is a new type of energy-saving product from T8 to T5. Using it to replace the traditional inductive T8 fluorescent lamp can save 50-70% of lighting electricity; and using it to replace the T5 fluorescent lamp can save 40-60% of electricity used for lighting.

However, the heat dissipation effect of the tube-in-tube energy-saving lamp in the prior art is not good. When used for a long time, the light-emitting diode is easily burned due to the increase of the temperature inside the tube; and the service life of the tube-in-tube energy-saving lamp in the prior art is not long enough. , Luminous stability is not very good.

Utility model content

The purpose of the utility model is to provide a long-life tube-in-tube energy-saving lamp, which not only has a good heat dissipation effect, but also has a long service life and good luminous stability.

In order to achieve the above object, the utility model adopts the following technical solutions:

A long-life tube-in-tube energy-saving lamp, comprising a transparent glass sleeve, a three-primary color luminous tube, ferrules arranged at both ends of the transparent glass sleeve and a guide post arranged at one end of the ferrule, and the ferrule is set inside the ferrule There is a rectifier, a plug is set between the transparent glass sleeve and the ferrule, the two ends of the three primary color light-emitting tubes are fixed on the plug, and both the plug and the ferrule are set There are cooling holes, and a rectification control circuit board is installed in the rectifier, and the rectification control circuit board is electrically connected with the three primary color light-emitting tubes and the guide column respectively.

As an improvement of the long-life tube-in-tube energy-saving lamp of the utility model, the rectification control circuit board includes a rectification circuit, a filter circuit, a self-excited oscillation circuit and a passive power factor compensation circuit connected in sequence.

As an improvement of the long-life tube-in-tube energy-saving lamp of the present invention, the rectifier circuit is a bridge type composed of the first diode, the second diode, the fifth diode and the sixth diode rectifier circuit.

As an improvement of the long-life tube-in-tube energy-saving lamp of the present invention, the filter circuit includes a third capacitor, a fourth capacitor, a third diode, a seventh diode, a fifth capacitor and a first resistor; One end of the third capacitor is connected to the anode of the seventh diode through the fourth capacitor, and the other end is respectively connected to the cathode of the third diode, the fifth capacitor, and the first resistor connect.

As an improvement of the long-life tube-in-tube energy-saving lamp of the utility model, the self-excited oscillation circuit includes a transformer, a second resistor, a third resistor, a first triode, a fifth resistor, a second triode, The sixth resistor, the ninth diode, the tenth diode, the eighth diode, the sixth capacitor, the fourth resistor and the thirteenth diode; one end of the transformer passes through the second resistor, The first transistor, the fifth resistor, and the second transistor are connected to the sixth resistor, and the other end is connected to the thirteenth diode through the third resistor; the The positive terminal of the ninth diode is connected to the emitter of the first triode, and the negative terminal is connected to the base of the first triode; the positive terminal of the tenth diode is connected to the first triode. The emitter of the second triode is connected, and the negative terminal is connected with the base of the second triode; one end of the fourth resistor is connected with the collector of the second triode, and the other end is connected with the first transistor. Six capacitors; the eighth diode is connected in parallel with the fourth resistor.

As an improvement of the long-life tube-in-tube energy-saving lamp of the utility model, the passive power factor compensation circuit includes an eighth capacitor, a ninth capacitor, a fourth diode, an eleventh diode and a twelfth pole tube, the eighth capacitor is connected in parallel with the fourth diode, the anode of the fourth diode is connected with the cathode of the eleventh diode, and the eleventh diode The anode is connected to the cathode of the twelfth diode, and the ninth capacitor is connected in parallel to the twelfth diode.

As an improvement of the long-life tube-in-tube energy-saving lamp of the utility model, the shape of the cooling holes arranged on the plug is circular.

As an improvement of the long-life tube-in-tube energy-saving lamp of the utility model, the shape of the cooling holes provided on the ferrule is rectangular.

As an improvement of the long-life tube-in-tube energy-saving lamp of the utility model, the cooling holes arranged on the ferrule are arranged in four rows.

Compared with the prior art, the utility model has at least the following beneficial effects: first, by providing cooling holes on the plug and ferrule, the heat dissipation effect of the energy-saving lamp can be greatly improved; second, through the circuit on the rectification control circuit board Adding a passive power factor compensation circuit to the lamp can reduce the flow of reactive power and reduce power consumption, thereby prolonging the service life of the lamp and improving the stability of light emission.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an exploded view of the utility model.

Fig. 3 is a circuit structure diagram of the circuit included in the rectification control circuit board in the present invention.

Detailed ways

The utility model will be further described in detail below in conjunction with the specific implementation and the accompanying drawings, but the implementation of the utility model is not limited thereto.

As shown in Figures 1 and 2, the long-life tube-in-tube energy-saving lamp provided by the utility model includes a transparent glass sleeve 1, a three-color light-emitting tube 2, ferrules 3 arranged at both ends of the transparent glass sleeve 1, and A guide post 4 at one end of the ferrule 3, a rectifier 5 is arranged inside the ferrule 3, a plug 6 is arranged between the transparent glass sleeve 1 and the ferrule 3, and the two ends of the three primary color light-emitting tube 2 are fixed on the plug 6, Both the plug 6 and the ferrule 3 are provided with cooling holes 7, and a rectification control circuit board is installed in the rectifier 5, and the rectification control circuit board is electrically connected with the tricolor light-emitting tube 2 and the guide post 4 respectively.

Wherein, as shown in FIG. 3 , the rectification control circuit board includes a rectification circuit 10 , a filter circuit 20 , a self-excited oscillation circuit 30 and a passive power factor compensation circuit 40 connected in sequence.

Wherein, the rectification circuit 10 is a bridge rectification circuit composed of a first diode D1 , a second diode D2 , a fifth diode D5 and a sixth diode D6 .

The filter circuit 20 includes a third capacitor C3, a fourth capacitor C4, a third diode D3, a fifth capacitor C5, a seventh diode D7 and a first resistor R1; one end of the third capacitor C3 passes through the fourth capacitor C4 It is connected to the anode of the seventh diode D7, and the other end is respectively connected to the cathode of the third diode D3, the fifth capacitor C5 and the first resistor R1.

The self-excited oscillation circuit 30 includes a transformer T1, a second resistor R2, a third resistor R3, a first transistor Q1, a fifth resistor R5, a second transistor Q2, a sixth resistor R6, a ninth diode D9, The tenth diode D10, the eighth diode D8, the sixth capacitor C6, the fourth resistor R4 and the thirteenth diode D13; one end of the transformer T1 passes through the second resistor R2, the first triode Q1, The fifth resistor R5, the second triode Q2 are connected to the sixth resistor R6, and the other end is connected to the thirteenth diode D13 through the third resistor R3; the positive end of the ninth diode D9 is connected to the first triode The emitter of Q1 is connected, and the negative terminal is connected with the base of the first transistor Q1; the positive terminal of the tenth diode D10 is connected with the emitter of the second transistor Q2, and the negative terminal is connected with the second transistor Q2 One end of the fourth resistor R4 is connected to the collector of the second transistor Q2, and the other end is connected to the sixth capacitor C6; the eighth diode D8 is connected in parallel with the fourth resistor R4.

The passive power factor compensation circuit 40 includes an eighth capacitor C8, a ninth capacitor C9, a fourth diode D4, an eleventh diode D11 and a twelfth diode D12, and the eighth capacitor C8 and the fourth diode D4 is connected in parallel, the anode of the fourth diode D4 is connected to the cathode of the eleventh diode D11, the anode of the eleventh diode D11 is connected to the cathode of the twelfth diode D12, and the ninth capacitor C9 is connected to the cathode of the twelfth diode D12. The twelfth diode D12 is connected in parallel.

The 220V alternating current is bridge rectified by the first diode D1, the second diode D2, the fifth diode D5 and the sixth diode D6, and passes through the third capacitor C3, the fourth capacitor C4, the third and second capacitors The constant voltage of 320V is obtained after high-frequency filtering by the diode D3, the seventh diode D7, the fifth capacitor C5 and the first resistor R1. The transformer T1, the first triode Q1, the second triode Q2 and the sixth resistor R6 form a trigger and self-excited oscillation circuit, and the first triode Q1 and the second triode Q2 are turned on and off alternately, The alternating high-frequency voltage is obtained at both ends of the luminous tube, and the lamp is lit. The eighth capacitor C8, the ninth capacitor C9, the fourth diode D4, the eleventh diode D11 and the twelfth diode D12 form a passive power factor compensation circuit, which greatly improves the service life and luminescence of the lamp tube. stability.

The circuit board can make the whole energy-saving lamp work in constant voltage, constant current and constant temperature, so that the life of the lamp can be as long as more than 20,000 hours, and because of its reasonable circuit layout, there is no need to use ballasts and starters, which reduces production costs. cost.

The cooling holes 7 provided on the plug 6 are circular in shape.

The heat dissipation holes 7 arranged on the ferrule 3 are rectangular in shape, and the heat dissipation holes 7 are arranged in four rows.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the above specific implementation manners, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the utility model shall belong to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims (9)

1. A long-life tube-in-tube energy-saving lamp, including a transparent glass sleeve, a three-primary color light-emitting tube, ferrules arranged at both ends of the transparent glass sleeve and a guide post arranged at one end of the ferrule, the ferrule A rectifier is arranged inside, and a plug is arranged between the transparent glass sleeve and the ferrule, and the two ends of the three primary color light-emitting tubes are fixed on the plug, and it is characterized in that: the plug and the The ferrules are all provided with cooling holes, and the rectifier is installed with a rectification control circuit board, and the rectification control circuit board is respectively electrically connected with the three primary color light-emitting tubes and the guide posts. 2. The long-life tube-in-tube energy-saving lamp according to claim 1, wherein the rectification control circuit board includes a rectification circuit, a filter circuit, a self-excited oscillation circuit and a passive power factor compensation circuit connected in sequence. 3. The long-life tube-in-tube energy-saving lamp according to claim 2, characterized in that: the rectifier circuit is composed of a first diode, a second diode, a fifth diode and a sixth diode A bridge rectifier circuit composed of tubes. 4. The long-life tube-in-tube energy-saving lamp according to claim 3, wherein the filter circuit includes a third capacitor, a fourth capacitor, a third diode, a seventh diode, and a fifth capacitor and the first resistor; one end of the third capacitor is connected to the anode of the seventh diode through the fourth capacitor, and the other end is respectively connected to the cathode of the third diode, the fifth capacitor and The first resistor is connected. 5. The long-life tube-in-tube energy-saving lamp according to claim 4, characterized in that: the self-excited oscillation circuit includes a transformer, a second resistor, a third resistor, a first triode, a fifth resistor, a Two transistors, the sixth resistor, the ninth diode, the tenth diode, the eighth diode, the sixth capacitor, the fourth resistor and the thirteenth diode; one end of the transformer passes through the The second resistor, the first transistor, the fifth resistor, and the second transistor are connected to the sixth resistor, and the other end is connected to the thirteenth diode through the third resistor tube connection; the positive end of the ninth diode is connected to the emitter of the first triode, and the negative end is connected to the base of the first triode; the positive end of the tenth diode The terminal is connected to the emitter of the second triode, and the negative terminal is connected to the base of the second triode; one end of the fourth resistor is connected to the collector of the second triode, and the other end is connected to the collector of the second triode. One end is connected to the sixth capacitor; the eighth diode is connected in parallel with the fourth resistor. 6. The long-life tube-in-tube energy-saving lamp according to claim 5, wherein the passive power factor compensation circuit includes an eighth capacitor, a ninth capacitor, a fourth diode, and an eleventh diode and the twelfth diode, the eighth capacitor is connected in parallel with the fourth diode, the anode of the fourth diode is connected with the cathode of the eleventh diode, and the tenth diode The anode of a diode is connected to the cathode of the twelfth diode, and the ninth capacitor is connected in parallel with the twelfth diode. 7. The long-life tube-in-tube energy-saving lamp according to claim 1, characterized in that: the shape of the cooling hole provided on the plug is circular. 8. The long-life tube-in-tube energy-saving lamp according to claim 1, characterized in that: the shape of the cooling holes provided on the ferrule is rectangular. 9. The long-life tube-in-tube energy-saving lamp according to claim 8, characterized in that: the cooling holes provided on the ferrule are arranged in four rows.

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