CN102003639A - A kind of LED energy-saving lamp - Google Patents

Abstract

The invention discloses an LED energy-saving lamp, comprising a lamp tube and a lamp holder fixed to the end of the lamp tube, a patch LED lamp group is arranged in the lamp tube, the patch LED lamp group is electrically connected to the lamp holder through a circuit board, the patch LED lamp group comprises a plurality of groups of patch LED lamps fixed on the circuit board, each group of patch LED lamps has a plurality of LED illuminants connected in series, each group of patch LED lamps is connected in parallel, and the lamp tube is a closed space filled with carbon dioxide gas. The LED energy-saving lamp in the invention has the advantages of low energy consumption and long service life.

Description

A kind of LED energy-saving lamp

technical field

The invention relates to a lamp, in particular to an LED energy-saving lamp.

Background technique

In recent years, LED lamps have gradually replaced traditional lamps such as tungsten lamps due to their long service life, low energy consumption, rich colors and many other advantages.

However, traditional LED lights are used in non-airtight environments. The heat dissipation mainly uses the air around the light body and the heat sink on the LED light to achieve heat dissipation. In addition, it needs to be equipped with a power transformer. During the production process It is troublesome, and it is very inconvenient to maintain during use. Furthermore, the power of ordinary LED lamps is usually 1 to 3 watts. Due to the relatively concentrated heat generation of a single LED lamp, the heat generated by it is relatively large, and it is very difficult to dissipate heat in an effectively sealed lamp space. The heat at the lamp is high, which greatly shortens the service life of the LED lamp bead, and the heat generated is not easy to dissipate.

If the existing LED lamp is an LED lamp tube, the LDE lamp in the lamp tube is not airtight, and the heat dissipation of the LED lamp tube is generally through the natural heat dissipation of the air, because the LED lamp is directly in contact with the air, and the tungsten filament bulb is filled with inert The gas mainly plays a protective role or is used to change the luminous color of the lamp. The inert gas can not play the role of heat dissipation. The service life of the luminous body of the LDE lamp in the ordinary LED lamp tube mainly depends on the heat dissipation of the LED lamp. Therefore, the existing The existing LED lamp has the defect that the service life is not long.

Contents of the invention

The purpose of the present invention is to overcome the above defects in the prior art, and provide an LED energy-saving lamp with low energy consumption and long service life.

In order to achieve the above objectives, the present invention discloses an LED energy-saving lamp, which includes a lamp tube and a lamp cap fixed at the end of the lamp tube. The lamp tube is provided with a patch LED lamp group, and the patch LED lamp group passes through the circuit board and the lamp cap. Electrically connected, the SMD LED lamp group includes multiple groups of SMD LED lamps fixed on the circuit board, each group of SMD LED lamps has multiple LED illuminants connected in series, and each group of SMD LED lamps is connected in parallel , The inside of the lamp tube is a closed space filled with carbon dioxide gas.

Wherein, a rectification module is provided on the circuit board, the input end of the rectification module is electrically connected to the lamp holder, and the SMD LED lamp group is connected in series between the positive and negative poles of the rectification module.

Wherein, the circuit board includes a plurality of elongated printed circuit boards crossed and fixedly connected to each other.

Wherein, each LED illuminant in each group of SMD LED lamps is evenly and vertically arranged on the surface of the printed circuit board in a straight line.

Wherein, the circuit board includes two printed circuit boards extending longitudinally and vertically intersecting and fixedly connected to each other, and each printed circuit board is provided with longitudinally arranged LED illuminants on the front and back sides of the lateral sides.

In order to achieve the above purpose, the present invention discloses an LED energy-saving lamp, which includes a lampshade and a lamp cap fixed at the end of the lampshade. A patch LED lamp group is arranged inside the lampshade, and the patch LED lamp group is electrically connected to the lamp cap through a circuit board. The SMD LED lamp group includes multiple groups of SMD LED lamps fixed on the circuit board. Each group of SMD LED lamps has a plurality of LED illuminants connected in series. Each group of SMD LED lamps is connected in parallel. It is a closed space filled with carbon dioxide gas.

Wherein, a rectification module is provided on the circuit board, the input end of the rectification module is electrically connected to the lamp holder, and the SMD LED lamp group is connected in series between the positive and negative poles of the rectification module.

Wherein, the circuit board includes a plurality of elongated printed circuit boards crossed and fixedly connected to each other.

Wherein, each LED illuminant in each group of SMD LED lamps is evenly and vertically arranged on the surface of the printed circuit board in a straight line.

Wherein, the circuit board includes two printed circuit boards extending longitudinally and vertically intersecting and fixedly connected to each other, and each printed circuit board is provided with longitudinally arranged LED illuminants on the front and back sides of the lateral sides.

The present invention has the following beneficial effects:

(1) In the present invention, the patch LED is installed on the circuit board, and the circuit board and the patch LED lamp are sealed in the lamp tube. SMD LED lamps, each group of SMD LED lamps has multiple LED illuminants connected in series, and each group of SMD LED lamps is connected in parallel, that is, the SMD LED lamp group and the SMD LED lamp group are connected in series and parallel Compared with the existing technology, the external power supply connection can greatly reduce the voltage of the external power supply in order to achieve the same luminous effect, which not only saves energy, but also avoids excessive heat generated by the LED lamp caused by excessive voltage, thus extending The service life of LED lights.

(2) In the present invention, the lamp tube or lampshade is airtightly arranged, and is filled with high-purity carbon dioxide gas in the lamp tube or lampshade, because the temperature at the light-emitting place of the LDE lamp in the bulb or lampshade is higher than other positions inside the bulb, There is a temperature difference inside the bulb. Due to the nature of the carbon dioxide gas itself, the carbon dioxide gas can absorb the heat generated by the luminous place of the LDE lamp, and bring the generated heat to the space where the bulb is close to the lampshade with a lower temperature in all directions. The heat flows continuously in the airtight bulb, the heat is transferred from the space with high temperature to the space with low temperature, and the carbon dioxide gas acts as a heat transfer medium. Because solid carbon dioxide is dry ice, dry ice can be used for refrigeration, that is, solid carbon dioxide can absorb heat well and play a role in heat dissipation, and carbon dioxide gas can also absorb heat and play a role in heat dissipation.

In addition, since the power of a single LED illuminant in the SMD LED lamp is very small, the heat generated is relatively small, which further reduces the consumption of the entire LED energy-saving lamps into heat energy, and further ensures energy saving and long service life. Purpose.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of Embodiment 1 of the LED energy-saving lamp of the present invention;

Fig. 2 is a front view of the LED energy-saving lamp in Fig. 1;

Fig. 3 is a three-dimensional schematic diagram of a patch LED lamp group and a circuit board in the LED energy-saving lamp in Fig. 1;

Fig. 4 is a schematic circuit diagram of the LED energy-saving lamp in Fig. 1;

Fig. 5 is a three-dimensional schematic diagram of Embodiment 2 of the LED energy-saving lamp of the present invention;

Fig. 6 is an exploded schematic view of the LED energy-saving lamp in Fig. 5;

Fig. 7 is a perspective schematic diagram of the SMD LED lamp group and the circuit board in the LED energy-saving lamp in Fig. 5 .

In conjunction with the accompanying drawings, the following reference numerals are marked thereon:

1-lamp holder, 2-lamp tube, 3-LED illuminant, 4-printed circuit board, 41-horizontal printed circuit board, 42-vertical printed circuit board, 5-rectifier module, 6-current limiting resistor, 7-lampshade, 8 - Constant current diode.

Detailed ways

The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the structure schematic diagram of the first embodiment of the LED energy-saving lamp, the LED energy-saving lamp includes a long tube-shaped lamp tube 2, the two ends of the lamp tube 2 are respectively fixed with the lamp holder 1, and the lamp tube 2 is fixed inside There are two strip-shaped printed circuit boards 4, both of which extend along the longitudinal direction of the lamp tube 2 and are vertically crossed and fixedly connected to each other, thereby forming a whole circuit board whose cross section is cross-shaped. In the structure shown in FIG. 3 , the front and back sides of the vertical printed circuit board 42 located above and below the horizontal printed circuit board 41 are electrically connected to the front and back sides of the upper and lower sides of the board body, respectively, with evenly arranged in-line LED illuminants 3 , similarly The front and back sides of the left and right sides of the horizontal printed circuit board 41 located on both sides of the vertical printed circuit board 42 are also electrically connected to the front and back sides of the horizontal printed circuit board 41, which are evenly arranged in a straight line, so that the LED energy-saving lamps in the present invention The medium-emitting light source faces all directions of up, down, left, and right, that is, eight different sides facing up, down, left, and right can emit light, and finally realizes 360-degree omnidirectional lighting along the radial direction of the lamp tube body. Each row of inline-shaped LED illuminants 3 is connected in series to form a group of SMD LED lamps, and each group of SMD LED lamps is connected in parallel to form a SMD LED lamp group, wherein the SMD LED lamps used can be It is an existing commercially available SMD LED lamp product, and preferably adopts LED illuminants 3 with a power of 0.002W-0.1W; compared with ordinary LED lamps, the power of each LED illuminant 3 is greatly reduced, and the power of each LED illuminant 3 is evenly distributed in the Therefore, the local overheating of the luminous light source will not occur during the use of the lamp, so that each LED luminous body 3 can have a longer service life. Further, since the present invention adopts the method of mixed series and parallel connection, it avoids that in the prior art, in order to obtain ideal brightness for each LED lamp, when a large number of LED lamps are connected in series, the lamp holder 1 needs to provide a higher voltage, causing the electric energy to be converted into heat energy Higher, that is, higher energy consumption, and too much heat can not be dissipated immediately, further shortening the service life of LED lights.

In order to obtain better lighting brightness stability, a rectification module 5 is provided on the circuit board. The input end of the rectification module 5 is electrically connected to the lamp holder 1 , and the SMD LED lamp group is connected in series between the positive and negative poles of the rectification module 5 . In addition, as shown in Figure 4, it is preferable to connect a current-limiting resistor 6 (such as a cement resistor) in series between the input end of the rectifier module 5 and the lamp cap 1, that is, to realize that the external AC power first passes through the current-limiting resistor 6, and then passes through the rectifier module. After 5, supply power to the SMD LED light group. It can be seen that the LED energy-saving lamps in the present invention can conveniently adjust the size of the current-limiting resistor 6 according to the voltage required by the patch LED lamp group, which saves the peripheral variable voltage power supply device required in the prior art, so that the energy-saving The lamp can be connected with various existing power sources, and the use is more flexible and convenient.

In this embodiment, the lamp tube 2 is a closed space. In order to make the heat dissipation of the gas in the lamp more uniform, so that the heat in the lamp tube 2 can be dissipated sufficiently and quickly, the lamp tube 2 is filled with high-concentration carbon dioxide gas alone. When the lamp is in the lighting state, each LED luminous body 3 will generate heat, and the carbon dioxide will be heated and flow upward, thereby driving the heat generated by the LED to flow in the lamp tube 2, and finally conduct the heat to the lamp tube 2 The surface has better thermal conductivity.

The lamp tube is filled with high-purity carbon dioxide gas. Because the temperature of the light-emitting part of the LDE lamp in the bulb is higher than other positions inside the bulb, a temperature difference occurs inside the bulb. Due to the nature of the carbon dioxide gas itself, the carbon dioxide gas can absorb The heat generated by the luminous part of the LDE lamp is brought to the space where the bulb is close to the lower temperature of the lampshade in an all-round way, so that the heat flows continuously in the closed bulb, and the heat is transferred from the space with a high temperature. In the lower part of the space, the carbon dioxide gas acts as a medium for heat transfer. Because solid carbon dioxide is dry ice, dry ice can be used for refrigeration, that is, solid carbon dioxide can absorb heat well and play a role in heat dissipation, and carbon dioxide gas can also absorb heat and play a role in heat dissipation.

As shown in Figures 5 to 7, the structure schematic diagram of the second embodiment of the LED energy-saving lamp, the LED energy-saving lamp includes a conical lampshade 7, a lamp cap 1 is fixed at one end of the lampshade 7, and two long strips are fixed inside the lampshade 7 Shaped horizontal printed circuit board 41 and vertical printed circuit board 42, the two printed circuit boards all extend along the longitudinal direction of the lampshade 7 and are vertically crossed and fixedly connected to each other, thereby forming a cross-sectional circuit board as a whole. In the structure shown in Figure 5, the front and back sides of the vertical printed circuit board 42 located above and below the horizontal printed circuit board 41 are electrically connected to the front and back sides of the upper and lower sides of the board body, respectively, with LED illuminants 3 evenly arranged in a font, similarly The front and back sides of the left and right sides of the horizontal printed circuit board 41 located on both sides of the vertical printed circuit board 42 are also electrically connected to the front and back sides of the horizontal printed circuit board 41, which are evenly arranged in a straight line, so that the LED energy-saving lamps in the present invention The medium-emitting light source faces all directions of up, down, left, and right, that is, eight different sides facing up, down, left, and right can emit light, and finally realizes 360-degree omnidirectional lighting along the radial direction of the lamp tube body. Each row of inline-shaped LED illuminants 3 is connected in series to form a group of SMD LED lamps, and each group of SMD LED lamps is connected in parallel to form a SMD LED lamp group; wherein, the SMD LED lamps used can be It is an existing commercially available SMD LED lamp product, and preferably adopts LED illuminants 3 with a power of 0.002W-0.1W; compared with ordinary LED lamps, the power of each LED illuminant 3 is greatly reduced, and the power of each LED illuminant 3 is evenly distributed in the Therefore, the local overheating of the luminous light source will not occur during the use of the lamp, so that each LED luminous body 3 can have a longer life. Further, since the present invention adopts the method of mixed series and parallel connection, it avoids that in the prior art, in order to obtain ideal brightness for each LED lamp, when a large number of LED lamps are connected in series, the lamp holder 1 needs to provide a higher voltage, causing the electric energy to be converted into heat energy Higher, that is, higher energy consumption, and too much heat can not be dissipated immediately, further shortening the service life of LED lights.

In addition, as shown in FIG. 5 , in order to ensure the constant current output of the rectification module 5 , a constant current diode 8 is also connected between the rectification module 5 and the SMD LED lamp.

In this embodiment, the lampshade 7 is a closed space. In order to make the heat dissipation of the gas in the lamp more uniform, so that the heat in the lampshade 7 can be fully and quickly dissipated, the lampshade 7 is filled with high-concentration carbon dioxide gas alone. When the lamp is in the lighting state, each LED luminous body 3 will generate heat, and the carbon dioxide will be heated and flow up, thereby driving the heat generated by the LED to flow in the lampshade 7, and finally conduct the heat to the surface of the lampshade 7, The heat conduction effect is better.

The above disclosures are only a few specific embodiments of the present invention, however, the present invention is not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present invention.

Claims (10)

1. An LED energy-saving lamp, comprising a lamp tube and a lamp cap fixed at the end of the lamp tube, the lamp tube is provided with a patch LED lamp group, and the patch LED lamp group is electrically connected to the lamp cap through a circuit board. connected, it is characterized in that: the patch LED light group includes multiple sets of patch LED lights fixed on the circuit board, each set of patch LED lights has a plurality of LED illuminants connected in series, each set of patch LED lights The lamp tubes are connected in parallel, and the inside of the lamp tube is a closed space filled with carbon dioxide gas. 2. The LED energy-saving lamp according to claim 1, wherein a rectification module is provided on the circuit board, the input end of the rectification module is electrically connected to the lamp holder, and the SMD LED lamp groups are connected in series Between the positive and negative poles of the rectifier module. 3. The LED energy-saving lamp according to claim 1 or 2, wherein the circuit board comprises a plurality of elongated printed circuit boards crossed and fixedly connected to each other. 4. The LED energy-saving lamp according to claim 1 or 2, characterized in that, each LED illuminant in each group of SMD LED lamps is evenly and vertically arranged in a line on the surface of the printed circuit board. 5. The LED energy-saving lamp according to claim 1 or 2, wherein the circuit board comprises two printed circuit boards that extend longitudinally and are vertically intersected and fixedly connected to each other, and each printed circuit board is horizontally arranged on both sides. Both sides of the front and back are provided with longitudinally arranged LED illuminants. 6. An LED energy-saving lamp, comprising a lampshade, and a lamp cap fixed at the end of the lampshade. The lampshade is provided with a patch LED lamp group, and the patch LED lamp group is electrically connected to the lamp cap through a circuit board. It is characterized in that: the patch LED lamp group includes multiple groups of patch LED lamps fixed on the circuit board, each group of patch LED lamps has a plurality of LED illuminants connected in series, each group of patch LED lamps is connected in parallel Connected by way, the inside of the lampshade is a closed space filled with carbon dioxide gas. 7. The LED energy-saving lamp according to claim 6, wherein a rectification module is provided on the circuit board, the input end of the rectification module is electrically connected to the lamp holder, and the SMD LED lamp groups are connected in series Between the positive and negative poles of the rectifier module. 8. The LED energy-saving lamp according to claim 6 or 7, wherein the circuit board comprises a plurality of elongated printed circuit boards crossed and fixedly connected to each other. 9. The LED energy-saving lamp according to claim 6 or 7, characterized in that, each LED illuminant in each group of SMD LED lamps is evenly and longitudinally arranged in a line on the surface of the printed circuit board. 10. The LED energy-saving lamp according to claim 6 or 7, wherein the circuit board comprises two printed circuit boards that extend longitudinally and are vertically intersected and fixedly connected to each other, and each printed circuit board has lateral sides Both sides of the front and back are provided with longitudinally arranged LED illuminants.

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