CN110319363B - LED lamp tube capable of radiating heat by utilizing gas - Google Patents

Abstract

The invention discloses an LED lamp tube utilizing gas for heat dissipation, which structurally comprises two external connectors, a heat dissipation device, lamp tubes and a shell, wherein the external connectors are symmetrically arranged, the external connectors are respectively arranged at two ends of each lamp tube, each lamp tube is in a long tube shape, each lamp tube is fixedly connected with the shell, the shell is connected with the external connectors, and the heat dissipation device is arranged in the shell, so that the LED lamp tube has the beneficial effects that: the baffle is arranged on the inner side of the inlet and the outlet, so that air entering from the inlet and the outlet is conveyed into the annular pipe along two sides of the baffle, airflow vortex is formed on the back of the baffle, the purpose of improving the movement speed of the airflow is achieved, the airflow has power of continuously moving upwards, the airflow is output through the air outlet and the main heat dissipation pipe, the purpose of cooling the substrate in the lighting cavity and the inner wall of the lamp tube is achieved, and the lamp tube is cooled comprehensively.

Description

A kind of LED lamp tube that uses gas to dissipate heat

technical field

The invention relates to the field of LED lamps, in particular to an LED lamp tube utilizing gas to dissipate heat.

Background technique

When the lamp is in the lighting state, the temperature of the whole lamp will gradually increase. When the whole lamp power reaches 24W, the junction temperature of the LED chip is too high, and the luminous efficiency will drop by 10-20%. In order to ensure the luminous efficiency of the LED lamp, for the LED lamp tube The heat dissipation requirement is a must, the current LED tube has the following defects:

The traditional heat dissipation of LED tube is to ventilate and dissipate heat by opening vents at the bottom of the LED tube, but this method can only dissipate the local high temperature at the bottom, the heat generated by the lighting side of the tube still exists, and the hot air will move. On the side that has been cooled down, the temperature of the lamp tube is maintained continuously, which affects the normal service life of the LED lamp tube.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the present invention is achieved by the following technical solutions: a lamp tube utilizing gas heat dissipation, the structure of which includes an outer joint, a heat dissipation device, a lamp tube, and a shell, and the outer joint is provided with two , the outer joint is set up in a symmetrical structure, the outer joint is installed on both ends of the lamp tube, the lamp tube is in the shape of a long tube, the lamp tube is fixedly connected with the shell, and the shell and the outer joint are connected to each other. connected, the heat sink is installed in the housing;

The heat dissipation device is composed of a lighting cavity, a heat dissipation mechanism, an auxiliary heat dissipation mechanism, and an inlet and outlet. The lighting cavity is provided with a heat dissipation mechanism, and the heat dissipation mechanism cooperates with the auxiliary heat dissipation mechanism. In the lighting cavity, there are three inlets and outlets, the inlets and outlets are equidistantly distributed at the bottom of the casing, the inlets and outlets penetrate through the casing and communicate with the heat dissipation mechanism.

As a further optimization of the present invention, the heat dissipation mechanism is composed of a main heat dissipation pipe, an air outlet, an annular pipe, and a baffle plate. There are two main heat dissipation pipes, and the main heat dissipation pipes are installed on the inner wall of the lighting cavity in a symmetrical structure. , the main heat dissipation pipe is provided with an air outlet, the air outlet penetrates the main heat dissipation pipe and communicates with the lighting cavity, the annular pipe and the main heat dissipation pipe are set up in an integral structure, and the annular pipe is installed on the main heat dissipation pipe away from the lighting On one end of the cavity, the baffle is arranged in the annular tube, and the baffle is located on the inlet and outlet.

As a further optimization of the present invention, the main heat dissipation pipe is set up in a curved structure, and one side is set up against the inner wall of the lighting cavity, so as to avoid blocking the lamp and ensure that the lamp can be illuminated normally.

As a further optimization of the present invention, the auxiliary heat dissipation mechanism is composed of a base plate, a main channel, a sheet, and a push rod, the base plate is located on the main channel, the main channel is connected with the base plate, and the main channel is communicated with the inlet and outlet, The ejector rods are provided with two, the ejector rods are set up in a symmetrical structure with respect to the center point of the base plate, the ejector rods are fixedly connected with the inner wall of the main channel, the sheet is connected with the main channel, and the base plate is installed in the lighting cavity .

As a further optimization of the present invention, the sheet is provided with a movable opening, and the opening is controlled by the engagement of two movable clamping plates. When the two movable clamping plates are engaged, the movable opening is in a closed state; When the movable card plate is pushed and separated by the thrust of the ejector rod, the movable opening is in an open state, so as to realize the heat dissipation effect.

beneficial effect

The present invention is a lamp tube that utilizes gas to dissipate heat. By opening an inlet and outlet in the casing, the gas enters the casing through the inlet and outlet. Due to the baffle, the wind entering from the inlet and outlet is transported to the casing along both sides of the baffle. In the annular pipe, and the airflow vortex is formed on the back of the baffle, so that the conveying speed of the airflow is increased, and is transported to the main radiating pipe through the annular pipe. To the base plate, the rest of the airflow continues to move upward, and is transported from the port of the main heat pipe to the lighting cavity to achieve the purpose of reducing the temperature of the inner wall of the lamp tube. When the temperature on the base plate rises, the hot air pushes the sheet down along the inner wall of the main channel. Movement, the ejector rod pushes the two movable cards on the sheet upward, so that the two movable cards are separated. Due to the temperature difference between the upper and lower sides of the sheet, the gas on the side of the substrate along the opening between the ejector rod and the sheet radiate out.

Compared with the prior art, the present invention has the following advantages:

By setting up baffles on the inner side of the inlet and outlet, the invention makes the air entering from the opening inlet and outlet transported into the annular pipe along the two sides of the baffle, and forms an airflow vortex on the back of the baffle, so as to achieve the purpose of increasing the speed of the airflow. It has the power to continue upward movement, and is output through the air outlet and the main heat dissipation pipe, so as to achieve the purpose of cooling the substrate in the lighting cavity and the inner wall of the lamp tube, and realize the overall cooling of the lamp tube.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an LED lamp tube utilizing gas heat dissipation according to the present invention.

FIG. 2 is a cross-sectional view of a heat dissipation device for an LED lamp tube utilizing gas heat dissipation according to the present invention.

3 is a sectional view of a working state of a heat dissipation device for an LED lamp tube utilizing gas heat dissipation according to the present invention.

4 is a top view of an LED lamp tube utilizing gas heat dissipation according to the present invention.

FIG. 5 is an enlarged view of A in FIG. 2 .

6 is a bottom view of an LED lamp tube utilizing gas heat dissipation according to the present invention.

In the figure: External joint-1, cooling device-2, lamp tube-3, housing-4, lighting cavity-2a, cooling mechanism-2b, auxiliary cooling mechanism-2c, inlet and outlet-2d, main cooling pipe-2b1, Air outlet-2b2, annular tube-2b3, baffle-2b4, base plate-2c1, main channel-2c2, sheet-2c3, ejector-2c4.

Detailed ways

In order to make the technical means, creative features, achieved goals and effects of the present invention easy to understand, the preferred embodiments of the present invention are further described below with reference to the specific embodiments and the accompanying drawings.

Example

Please refer to FIG. 1 to FIG. 6 , the present invention provides an LED lamp tube utilizing gas to dissipate heat. The outer joint 1 is set up in a symmetrical structure, and the outer joint 1 is respectively installed on both ends of the lamp tube 3, the lamp tube 3 is in the shape of a long tube, and the lamp tube 3 is fixedly connected with the shell 4, and the shell The body 4 is connected with the external joint 1, and the heat dissipation device 2 is installed in the casing 4;

The heat dissipation device 2 consists of a lighting cavity 2a, a heat dissipation mechanism 2b, an auxiliary heat dissipation mechanism 2c, and an inlet and outlet 2d. The lighting cavity 2a is provided with a heat dissipation mechanism 2b, and the heat dissipation mechanism 2b cooperates with the auxiliary heat dissipation mechanism 2c. The auxiliary heat dissipation mechanism 2c and the heat dissipation mechanism 2b are both installed in the lighting cavity 2a, and the inlet and outlet 2d are provided with three. It communicates with the heat dissipation mechanism 2b.

The heat dissipation mechanism 2b is composed of a main heat dissipation pipe 2b1, an air outlet 2b2, an annular pipe 2b3, and a baffle plate 2b4. There are two main heat dissipation pipes 2b1, and the main heat dissipation pipes 2b1 are symmetrically installed on the inner wall of the lighting cavity 2a. Above, the main radiating pipe 2b1 is provided with an air outlet 2b2, the air outlet 2b2 penetrates the main radiating pipe 2b1 and communicates with the lighting cavity 2a, the annular pipe 2b3 and the main radiating pipe 2b1 are established in an integral structure, the annular The tube 2b3 is installed on the end of the main heat pipe 2b1 away from the lighting cavity 2a, the baffle 2b4 is arranged in the annular tube 2b3, and the baffle 2b4 is located on the inlet and outlet 2d. When the incoming air passes through the baffle 2b4, it is transported to the annular pipe 2b3 along both sides of the baffle 2b4, and forms an airflow vortex on the back of the baffle 2b4 to increase the gas flow velocity.

The main heat dissipation pipe 2b1 is set up in a curved structure, and one side is set up against the inner wall of the lighting cavity 2a, so as to avoid blocking the LED light and ensure that the LED light can be illuminated normally. The airflow entering from the annular pipe 2b3 moves along the curved pipe, blowing The cooling effect is achieved on the inward LED lamp substrate 2c1.

The auxiliary heat dissipation mechanism 2c is composed of a base plate 2c1, a main channel 2c2, a sheet 2c3, and a mandrel 2c4. The base plate 2c1 is located on the main channel 2c2, the main channel 2c2 is connected with the base plate 2c1, and the main channel 2c2 is connected with the inlet. The outlet 2d communicates with each other, and there are two ejector pins 2c4. The ejector pins 2c4 are set up in a symmetrical structure with respect to the center point of the base plate 2c1. The ejector pins 2c4 are fixedly connected to the inner wall of the main channel 2c2. Connected, the base plate 2c1 is installed in the lighting cavity 2a, the mandrel 2c4 is set up in an L-shaped structure, and the end away from the inner wall of the main channel 2c2 is set up in a conical shape, which is convenient for passing through the sheet 2c3, so that the hot air flows along the top rod 2c4 and the sheet. The opening between 2c3 radiates out.

The sheet 2c3 is provided with a movable opening, and the opening is controlled by the engagement of two movable clamping plates. When the two movable clamping plates are engaged, the movable opening is in a closed state; When the thrust of 2c4 pushes and separates, the movable opening is in the open state, so as to realize the heat dissipation effect.

By opening the inlet and outlet 2d in the casing 4, the gas enters the casing 4 through the inlet and outlet 2d. Due to the baffle plate 2b4, the wind entering from the opening inlet and outlet 2d is transported to the annular pipe 2b3 along both sides of the baffle plate 2b4. , and form an airflow vortex on the back of the baffle 2b4, so that the conveying speed of the airflow is increased, and is conveyed to the main heat dissipation pipe 2b1 through the annular pipe 2b3. When passing through the air outlet 2b2, a part of the air is output from the air outlet 2b2 and reaches the lighting cavity. In 2a, the air is blown toward the substrate 2c1, and the rest of the airflow continues to move upward, and is transported from the port of the main heat pipe 2b1 to the lighting cavity 2a, so as to reduce the temperature of the inner wall of the lamp 3. When the temperature on the substrate 2c1 rises, the hot air Push the sheet 2c3 to move downward along the inner wall of the main channel 2c2, and the ejector rod 2c4 pushes the two movable clamps on the sheet 2c3 upward, so that the two movable clamps are separated. The gas on the side is emitted along the opening between the ejector pin 2c4 and the sheet 2c3.

The problem solved by the present invention is that the traditional heat dissipation of the LED lamp is performed by opening vents at the bottom of the LED lamp to conduct ventilation and heat dissipation, but this method can only dissipate the local high temperature at the bottom, and the heat generated by the lighting side of the lamp is still exists, and the hot air will move to the side that has been cooled down, so that the temperature of the lamp tube will continue to be maintained, which will affect the normal service life of the LED lamp tube. The present invention combines the above components with each other. , so that the wind entering from the opening and exit 2d is transported to the annular pipe 2b3 along both sides of the baffle 2b4, and an airflow vortex is formed on the back of the baffle 2b4, so as to achieve the purpose of increasing the speed of the airflow, so that it can continue to move upward. The power is output through the air outlet 2b2 and the main heat dissipation pipe 2b1 to achieve the purpose of cooling the substrate 2c1 in the lighting cavity 2a and the inner wall of the lamp 3, and realize the overall cooling of the lamp 3.

The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only for illustrating the present invention. principle, without departing from the spirit or essential characteristics of the present invention, not only can the present invention be realized in other specific forms, but also various changes and improvements, these changes and improvements all fall within the scope of the claimed invention, therefore The claimed scope of the present invention is defined by the appended claims and their equivalents, rather than the foregoing description.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (3)

1. The utility model provides an utilize gaseous radiating LED fluorescent tube, its structure includes external joint (1), heat abstractor (2), fluorescent tube (3), casing (4), external joint (1) is equipped with two, external joint (1) is symmetrical structure and establishes its characterized in that:

the lamp tube heat dissipation device is characterized in that the outer connectors (1) are respectively installed at two ends of the lamp tube (3), the lamp tube (3) is in a long tube shape, the lamp tube (3) is fixedly connected with the shell (4), the shell (4) is connected with the outer connectors (1), and the heat dissipation device (2) is installed in the shell (4);

the heat dissipation device (2) is composed of a lighting cavity (2a), heat dissipation mechanisms (2b), auxiliary heat dissipation mechanisms (2c) and an inlet and an outlet (2d), the heat dissipation mechanisms (2b) are arranged in the lighting cavity (2a), the heat dissipation mechanisms (2b) are matched with the auxiliary heat dissipation mechanisms (2c), the auxiliary heat dissipation mechanisms (2c) and the heat dissipation mechanisms (2b) are both installed in the lighting cavity (2a), the number of the inlet and the outlet (2d) is three, the inlet and the outlet (2d) are distributed at the bottom of the shell (4) at equal intervals, and the inlet and the outlet (2d) penetrate through the shell (4) and are communicated with the heat dissipation mechanisms (2 b);

the heat dissipation mechanism (2b) is composed of a main heat dissipation pipe (2b1), an air outlet (2b2), a ring pipe (2b3) and a baffle (2b4), wherein the air outlet (2b2) is formed in the main heat dissipation pipe (2b1), the air outlet (2b2) penetrates through the main heat dissipation pipe (2b1) and is communicated with the lighting cavity (2a), the ring pipe (2b3) and the main heat dissipation pipe (2b1) are set up in an integrated structure, and the baffle (2b4) is arranged in the ring pipe (2b 3);

the main heat dissipation pipe (2b1) is arranged in a curved structure, and one side of the main heat dissipation pipe is arranged along the inner wall of the lighting cavity (2a), so that the LED lamp is prevented from being blocked, and the normal lighting of the LED lamp is guaranteed.

2. The LED lamp tube using gas for heat dissipation as defined in claim 1, wherein: the auxiliary heat dissipation mechanism (2c) is composed of a base plate (2c1), a main channel (2c2), a sheet (2c3) and a top bar (2c4), the base plate (2c1) is located on the main channel (2c2), the main channel (2c2) is connected with the base plate (2c1), the main channel (2c2) is communicated with an inlet and an outlet (2d), the top bar (2c4) is fixedly connected with the inner wall of the main channel (2c2), and the sheet (2c3) is connected with the main channel (2c 2).

3. The LED lamp tube using gas for heat dissipation as defined in claim 2, wherein: the sheet (2c3) is provided with a movable opening, the opening is controlled by the two movable clamping plates in a clamping way, and when the two movable clamping plates are clamped, the movable opening is in a closed state; when the two movable clamping plates are pushed by the thrust of the ejector rod (2c4) and separated, the movable opening is in an open state, so that the heat dissipation effect is realized.

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