WO2015090213A1

WO2015090213A1 - Tube-in-tube energy-saving lamp

Info

Publication number: WO2015090213A1
Application number: PCT/CN2014/094201
Authority: WO
Inventors: 戴建国
Original assignee: 戴建国
Priority date: 2013-12-19
Filing date: 2014-12-18
Publication date: 2015-06-25
Also published as: CN103836461A

Abstract

A tube-in-tube energy saving lamp, comprising a transparent glass sleeve tube (1), a trichromatic light-emitting tube (2), ferrules (3) arranged on the two ends of the transparent glass sleeve tube (1) and a guide post (4) arranged on one side of the ferrule (3). A rectifier (5) is disposed within the ferrule (3), a plug (7) is disposed between the transparent glass sleeve tube (1) and the ferrule (3), and heat dissipation holes (8) are disposed on both the plugs (7) and the ferrules (3). A rectifier control circuit board is arranged in the rectifier (5), and a two-layer stacked retroflective sheet (6) is disposed on the inner ball of the transparent glass sleeve tube (1). The trichromatic light-emitting tube (2) is disposed within the transparent glass sleeve tube (1), and the trichromatic light-emitting tube (2) is arranged on the plugs (7) towards one end of the retroflective sheet (6), and the guide post (4) is snap-fitted to the sleeve (3). By means of the retroflective sheet (6) disposed within the transparent glass sleeve tube (1), originally wasted light can be reflected back into an effective illumination range, increasing illuminance. The energy-saving aim is reached by efficient conversion of electrical energy and light energy. In addition, the present tube-in-tube energy-saving lamp is suitable for installation in different situations.

Description

Tube tube energy saving lamp

Technical field

The invention belongs to the technical field of energy-saving lamps, and in particular relates to a tube-in-tube energy-saving lamp.

Background technique

The energy-saving lamp is a lamp with high-brightness white light-emitting diode as the light source. It has many advantages such as high luminous efficiency, low power consumption, long life, easy control, maintenance-free, safety and environmental protection. It is a new generation of solid cold light source, light color. Soft, colorful, 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 energy-saving product of T8 to T5 type, which can replace the traditional inductive T8 fluorescent lamp, which can save 50-70% of lighting power; and replace it with T5 fluorescent lamp, it can save 40-60% of lighting power.

However, the heat-dissipating lamp of the tube-in-tube energy-saving lamp in the prior art has a poor heat-dissipating effect. When the temperature is increased in the tube for a long time, the light-emitting diode is easily burned; and the service life of the tube-in-tube energy-saving lamp in the prior art is not long enough. The luminescence stability is not very good. In addition, in the prior art, the tube-in-tube energy-saving lamp has a large loss of light, so the illuminance is still insufficient; moreover, the guide post in the tube-in-tube energy-saving lamp of the prior art cannot be rotated, so that it can only be Installed at a specific angle, but sometimes the energy-saving lamps are installed on the ceiling and sometimes on the wall. The fixed-structure guide column cannot meet the demand.

Summary of the invention

The object of the present invention is to provide a tube-in-tube energy-saving lamp according to the deficiencies of the prior art, which is not only high-efficiency, energy-saving, large in brightness, good in heat dissipation effect, but also has long service life, good light-emitting stability, and is suitable for different occasions. installation.

To achieve the above object, the present invention adopts the following technical solutions:

The tube-in-tube energy-saving lamp comprises a transparent glass sleeve, a three-primary color light-emitting tube, and is disposed on the transparent glass a ferrule at both ends of the sleeve and a guide post disposed at one end of the ferrule, wherein the ferrule is provided with a rectifier, and a plug is disposed between the transparent glass sleeve and the ferrule, and the plug and Each of the ferrules is provided with a heat dissipation hole, and a rectifier control circuit board is mounted in the rectifier, and the rectifier control circuit board is electrically connected to the three primary color light-emitting tubes and the guide pillar respectively, the transparent glass sleeve The inner wall is provided with two laminated retroreflective sheetings, and the cross-sectional shape of the retroreflective sheeting is semi-circular arc shape, the three primary color light emitting tubes are disposed in the transparent glass sleeve, and the three primary color light emitting tubes are installed The guide post is snap-fitted to the ferrule on a side of the plug adjacent to the reflector.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the inner side of the reflector is provided with a nano-reflective layer.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the ferrule is provided with four snap holes, and the guide post is provided with four buckles matched with the snap holes.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the distance between the projection line of the central axis of the three-primary light-emitting tube projected on the reflector and the edges of the reflector in the longitudinal direction is equal.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the projection lines of the two edges of the longitudinal direction of the retroreflective sheet on the three primary color light-emitting tubes overlap with the central axis of the three primary color light-emitting tubes.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the rectification control circuit board includes a rectification circuit, a filter circuit, a self-excited oscillation circuit and a passive power factor compensation circuit which are sequentially connected.

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

As an improvement of the 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 capacitor is connected to the anode of the seventh diode through the fourth capacitor, and the other end is connected to the cathode of the third diode, the fifth capacitor and the first resistor, respectively.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the self-excited oscillation circuit includes a transformer, a second resistor, a third resistor, a first triode, a fifth resistor, a second triode, and a sixth resistor. Ninth two a pole tube, a tenth diode, an eighth diode, a sixth capacitor, a fourth resistor, and a thirteenth diode; one end of the transformer sequentially passes through the second resistor, the first triode The fifth resistor, the second transistor is connected to the sixth resistor, and the other end is connected to the thirteenth diode through the third resistor; Extremely connected to the emitter of the first transistor, the negative terminal is connected to the base of the first transistor; the positive terminal of the tenth diode and the emitter of the second transistor Connected, the negative terminal is connected to the base of the second transistor; one end of the fourth resistor is connected to the collector of the second transistor, and the other end is connected to the sixth capacitor; A diode is connected in parallel with the fourth resistor.

As an improvement of the tube-in-tube energy-saving lamp of the present invention, the passive power factor compensation circuit includes an eighth capacitor, a ninth capacitor, a fourth diode, an eleventh diode, and a twelfth diode. An eighth capacitor is connected in parallel with the fourth diode, a positive pole of the fourth diode is connected to a cathode of the eleventh diode, and a positive pole of the eleventh diode is A negative electrode of the twelfth diode is connected, and the ninth capacitor is connected in parallel with the twelfth diode. Compared with the prior art, the present invention has at least the following beneficial effects:

First, by providing a reflector in the transparent glass casing, the originally wasted light can be reflected into the effective illumination range, and the illuminance is increased, thereby realizing efficient conversion of electric energy and light energy to achieve energy saving purposes;

Secondly, the installation of the three primary color light-emitting tubes on the side close to the reflector can further reduce the waste of light and reflect more light into the effective illumination range, thereby further increasing the illumination;

Thirdly, the snap connection of the guide post makes it possible to change the position, so that the invention can be installed not only on the ceiling but also on the wall in the case of ensuring the illuminance, that is, suitable for installation in different occasions;

Fourth, the transparent glass sleeve can make the three primary color light-emitting tubes not directly convect with the ambient air, and can effectively maintain the heat, thereby greatly reducing the secondary energy consumption and improving the luminous efficiency of the lamp; and because of the transparent glass casing Protection, dust will not stick to the reflective sheet to affect the reflective effect.

Fifth, by providing heat dissipation holes on the plug and the ferrule, the heat dissipation effect of the energy-saving lamp can be greatly improved.

Sixth, by adding a passive power factor compensation circuit to the circuit of the rectification control circuit board, the flow of reactive power can be reduced, and the power loss can be reduced, thereby prolonging the service life of the lamp and improving the stability of the illumination.

DRAWINGS

Figure 1 is a perspective view of the present invention.

Figure 2 is a front elevational view of the present invention.

Figure 3 is one of the exploded views of the present invention.

Figure 4 is a second exploded view of the present invention.

Fig. 5 is a circuit diagram showing the circuit included in the rectification control circuit board of the present invention.

detailed description

The present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in FIG. 1 to FIG. 4, the invention provides a tube-in-tube energy-saving lamp, comprising a transparent glass sleeve 1, a three-primary color light-emitting tube 2, a ferrule 3 disposed at two ends of the transparent glass sleeve 1, and a card disposed on the card. The guide post 4 at one end of the sleeve 3 is provided with a rectifier 5 in the ferrule 3, and a plug 7 is arranged between the transparent glass sleeve 1 and the ferrule 3. The inner wall of the transparent glass sleeve 1 is provided with two laminated reflective sheets. 6, and the shape of the cross section of the retroreflective sheeting 6 is a semicircular arc shape, the three primary color light emitting tubes 2 are disposed in the transparent glass sleeve 1, and the three primary color light emitting tubes 2 are mounted on the side of the plug 7 near the retroreflective sheeting 6 ( That is, the eccentric setting), the guide post 4 is snap-connected to the ferrule 3. The three primary color light-emitting tubes 2 can be connected to an external power source through the guide posts 4. The retroreflective sheeting 6 may be attached to the inner wall of the transparent glass sleeve 1, or may not be attached.

The plug 7 and the ferrule 3 are respectively provided with a heat dissipation hole 8 in which a rectification control circuit board is mounted, and the rectification control circuit board is electrically connected to the three primary color light-emitting tubes 2 and the guide post 4, respectively.

Wherein, the inner side of the retroreflective sheeting 6 is provided with a nano reflective layer to improve the light reflecting efficiency.

The nano-reflective layer is provided as a nano-aluminum reflective layer or a nano-silver reflective layer, both of which can be plated on the retroreflective sheeting 6 by electroplating.

The ferrule 3 is provided with a snap hole 31, and the guide post 4 is provided with a buckle 41 matching the snap hole 31, that is, the ferrule 3 and the guide post 4 are snap-fitted, which is not only easy to disassemble, but also convenient for maintenance. And the joint on the guide post 4 can be rotated to different directions.

The snap hole 31 and the snap 41 are each set to four. Thus, by rotating the guide post 4 and then engaging the ferrule 3, the joint on the guide post 4 can be freely converted in the lateral and longitudinal directions. Since the retroreflective sheeting 6 covers a part of the transparent glass sleeve 1, if it is installed on the ceiling during installation, the side provided with the retroreflective sheeting 6 should be close to the ceiling, and at this time, the joint direction on the guiding post 4 In the longitudinal direction; if it is to be mounted on a wall, the side provided with the retroreflective sheeting 6 should be close to the wall, and the direction of the joint on the guide post 4 should be changed to the lateral direction.

The thickness of the retroreflective sheeting 6 is 0.1-15 mm, and the retroreflective sheeting 6 is too thin, and the effect of improving the illuminance is not obvious, and too thick will occupy too much space in the transparent glass sleeve 1.

The projection line projected on the retroreflective sheeting 6 by the central axis of the trichromatic color light-emitting tube 2 is equal in distance from the both edges in the longitudinal direction of the retroreflective sheeting 6.

The projection lines on the three primary color light-emitting tubes 2 at both edges in the longitudinal direction of the retroreflective sheeting 6 overlap the central axis of the three primary color light-emitting tubes 2. That is to say, the retroreflective sheeting 6 can reflect half of the light emitted by the three primary color light-emitting tubes 2, and the light emitted by the other three of the three primary color light-emitting tubes 2 is directly irradiated.

Both ends of the retroreflective sheeting 6 are press-fitted on the inner wall of the transparent glass sleeve 1 by the ferrule 3, so that the joint can be firmly connected, and at the same time, it is easy to disassemble and repair.

As shown in FIG. 5, the rectification control circuit board includes a rectification circuit 10, a filter circuit 20, a self-oscillation circuit 30, and a passive power factor compensation circuit 40 which are sequentially connected.

The rectifier circuit 10 is a bridge rectifier 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. 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 connection.

The self-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, and a ninth diode D9. a tenth diode D10, an eighth diode D8, a sixth capacitor C6, a fourth resistor R4, and a thirteenth diode D13; one end of the transformer T1 sequentially passes through the second resistor R2 and the first transistor Q1. The fifth resistor R5, the second transistor Q2 is connected to the sixth resistor R6, and the other end is connected to the thirteenth diode D13 through the third resistor R3; the positive terminal of the ninth diode D9 and the first transistor The emitter of Q1 is connected, the negative terminal is connected to the base of the first transistor Q1, the positive terminal of the tenth diode D10 is connected to the emitter of the second transistor Q2, and the negative terminal and the second transistor Q2 are connected. The base resistor is connected; one end of the fourth resistor R4 is connected to the collector of the second transistor Q2, the other end is connected to the sixth capacitor C6; and 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 an eighth capacitor C8 and a 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 The twelfth diode D12 is connected in parallel.

The 220V AC power 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, and the third two. The pole tube D3, the seventh diode D7, the fifth capacitor C5, and the first resistor R1 are high frequency filtered to obtain a constant voltage of 320V. The transformer T1, the first transistor Q1, the second transistor Q2 and the sixth resistor R6 constitute a triggering, self-oscillating circuit, which is alternately turned on and off by the first transistor Q1 and the second transistor Q2. The alternating high-frequency voltage is obtained at both ends of the arc tube, and the lamp is turned on. The eighth capacitor C8, the ninth capacitor C9, the fourth diode D4, the eleventh diode D11 and the twelfth diode D12 constitute a passive power factor compensation circuit, which greatly improves the service life and illumination of the lamp Stability.

The board can make the whole energy-saving lamp in constant voltage, constant current and constant temperature working mode, which makes the life of the lamp tube up to 20,000 hours, and reduces the production due to its reasonable circuit layout without the use of ballasts and starters. cost.

The shape of the heat dissipation hole 8 provided in the plug 7 is circular.

The shape of the heat dissipation holes 8 provided in the ferrule 3 is a rectangle, and the heat dissipation holes 8 are arranged in four rows.

Variations and modifications of the above-described embodiments can also be made by those skilled in the art in light of the above disclosure. Therefore, the present invention is not limited to the specific embodiments described above, and any obvious modifications, substitutions or variations made by those skilled in the art based on the present invention are within the scope of the present invention. In addition, although specific terms are used in the specification, these terms are merely for convenience of description and do not limit the invention.

Claims

The tube-in-tube energy-saving lamp comprises a transparent glass sleeve, a three-primary light-emitting tube, a ferrule disposed at two ends of the transparent glass sleeve, and a guide post disposed at one end of the ferrule, wherein the ferrule is provided with a rectifier. A plug is disposed between the transparent glass sleeve and the ferrule, wherein: the plug and the ferrule are provided with a heat dissipation hole, and the rectifier is equipped with a rectification control circuit board. The rectification control circuit board is electrically connected to the three primary color light-emitting tubes and the guide post, respectively, the inner wall of the transparent glass sleeve is provided with two laminated reflective sheets, and the cross-sectional shape of the reflective sheet is a semi-circular arc shape, the three primary color light emitting tubes are disposed in the transparent glass sleeve, and the three primary color light emitting tubes are mounted on a side of the plug near the reflector, the guide post and the card Set of snap connections.
The tube-in-tube energy-saving lamp according to claim 1, wherein the inner side of the reflector is provided with a nano-reflective layer.
The tube-in-tube energy-saving lamp according to claim 1, wherein the ferrule is provided with four snap holes, and the guide post is provided with four buckles matched with the snap holes.
The tube-in-tube energy-saving lamp according to claim 1, wherein a distance between a projection line of the three primary color light-emitting tubes projected on the reflector and a distance between two edges of the reflector in the longitudinal direction equal.
The tube-in-tube energy-saving lamp according to claim 4, wherein a projection line of the two edges of the retroreflective sheet on the three primary color light-emitting tubes overlaps with a central axis of the three primary color light-emitting tubes.
The tube-in-tube energy-saving lamp according to claim 1, wherein the rectification control circuit board comprises a rectification circuit, a filter circuit, a self-excited oscillation circuit and a passive power factor compensation circuit which are sequentially connected.
The tube-in-tube energy-saving lamp according to claim 6, wherein the rectifier circuit is a bridge composed of a first diode, a second diode, a fifth diode, and a sixth diode. Rectifier circuit.
The tube-in-tube energy-saving lamp according to claim 6, wherein the filter circuit comprises a third capacitor, a fourth capacitor, a third diode, a seventh diode, a fifth capacitor and a first resistor; Said One end of the third capacitor is connected to the anode of the seventh diode through the fourth capacitor, and the other end is connected to the cathode of the third diode, the fifth capacitor and the first resistor, respectively.
The tube-in-tube energy-saving lamp according to claim 6, wherein the self-excited oscillation circuit comprises a transformer, a second resistor, a third resistor, a first triode, a fifth resistor, and a second triode, a sixth resistor, a ninth diode, a tenth diode, an eighth diode, a sixth capacitor, a fourth resistor, and a thirteenth diode; one end of the transformer sequentially passes through the second resistor, The first transistor, the fifth resistor, the second transistor are connected to the sixth resistor, and the other end is connected to the thirteenth diode through the third resistor; a positive terminal of the ninth diode is connected to an emitter of the first transistor, a negative terminal is connected to a base of the first transistor; and a positive terminal of the tenth diode is opposite to the first The emitter of the two transistors is connected, the negative terminal is connected to the base of the second transistor; one end of the fourth resistor is connected to the collector of the second transistor, and the other end is connected to the first a sixth capacitor; the eighth diode is connected in parallel with the fourth resistor.
The tube-in-tube energy-saving lamp according to claim 6, wherein the passive power factor compensation circuit comprises an eighth capacitor, a ninth capacitor, a fourth diode, an eleventh diode, and a twelfth two a pole tube, the eighth capacitor is connected in parallel with the fourth diode, a cathode of the fourth diode is connected to a cathode of the eleventh diode, and the eleventh diode is The positive electrode is connected to the negative electrode of the twelfth diode, and the ninth capacitor is connected in parallel with the twelfth diode.