CN114636116B

CN114636116B - Heat conduction device and heat conduction method of LED high-power lighting lamp

Info

Publication number: CN114636116B
Application number: CN202210361578.4A
Authority: CN
Inventors: 李建平; 马二华
Original assignee: Mester Led Ltd
Current assignee: Mester Led Ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2023-05-05
Anticipated expiration: 2042-04-07
Also published as: CN114636116A

Abstract

The invention discloses a heat conduction device of an LED high-power lighting lamp and a heat conduction method thereof, and relates to the technical field of lighting devices. The heat conduction device of the LED high-power lighting lamp and the heat conduction method thereof comprise a tower-shaped lamp cap, wherein a shell is fixedly connected to the lower side of the tower-shaped lamp cap, a filter screen is arranged on the side wall of the shell, a lampshade is fixedly arranged in the shell, a heat conduction component is arranged in the shell, a heat dissipation component is arranged above the heat conduction component, and a swinging component and an anti-blocking component are arranged below the heat dissipation component. According to the heat conduction device and the heat conduction method of the LED high-power lighting lamp, the heat conduction assembly, the heat dissipation assembly, the swinging assembly and the beating assembly are matched for use, so that the heat dissipation effect of the heat radiator is better, the heat conduction tube can be dissipated, the possibility that the filter screen is blocked by dust is prevented, normal air circulation and heat dissipation can be carried out when the device works, and the service life of the lighting lamp is prolonged.

Description

Heat conduction device and heat conduction method of LED high-power lighting lamp

Technical Field

The invention relates to the technical field of lighting devices, in particular to a heat conduction device of an LED high-power lighting lamp and a heat conduction method thereof.

Background

The high-power LED lighting lamp brings about another span in human lighting history. However, the high-power LED has a heat dissipation problem, 70% -85% of the electric energy input by the existing LED is converted into heat, and the LED chip is very small, if the heat dissipation is bad, the temperature of the chip is increased, so that uneven thermal stress distribution, reduced luminous efficiency of the chip and reduced excitation efficiency of fluorescent powder are caused, the LED chip is further rapidly degraded, the service life of a device is shortened, the heat dissipation problem of the chip is the key point of the technical problem, if the heat dissipation is bad, the service life of the LED is directly influenced, the light attenuation is accelerated, the service life of an LED lamp is shortened, and the chip and an LED bulb are burnt down heavily. Therefore, the upper part of the LED lamp is provided with a larger aluminum alloy die-casting cooling fin, and the working temperature is reduced by utilizing air convection. The larger the LED power, the larger the area of this heat sink, so the heat sink heat extraction at the bottom of the chip depends on whether the heat sink area is large enough.

At present, when a high-power LED lighting lamp dissipates heat, heat is conducted and dissipated through a radiator formed by a heat conducting pipe and a heat dissipating fin to reduce the temperature of the lamp, but when the lamp is reduced, the temperature of the radiator and the heat conducting pipe can be quickly increased and then reach a certain range because the lamp continuously generates heat, so that the heat dissipation of the radiator and the heat conducting pipe needs to be accelerated to improve the service life of the lamp, the purpose of reducing the temperature of the lamp is achieved, and the effect of prolonging the service life of the LED lighting lamp is achieved; in view of this, we propose a heat conduction device of an LED high-power lighting lamp and a heat conduction method thereof.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides a heat conduction device and a heat conduction method of an LED high-power lighting lamp, and solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a high-power illumination lamps and lanterns heat conduction device of LED, includes the tower lamp holder, the below fixedly connected with casing of tower lamp holder, be provided with the filter screen on the lateral wall of casing, the inside fixed mounting of casing has the lamp shade, the inside of casing is provided with heat conduction subassembly, heat conduction subassembly's top is provided with the radiator unit, the below of radiator unit is provided with swing subassembly and anti-clogging subassembly.

Preferably, the heat conduction assembly comprises an LED integrated chip, the LED integrated chip is arranged in the shell, the upper side of the LED integrated chip is provided with a heat absorption sheet, one end of the heat absorption sheet, far away from the LED integrated chip, is provided with a heat conduction pipe, the heat conduction pipe is far away from a radiator at one end of the heat absorption sheet, and two sides of the radiator are provided with baffles.

Preferably, the heat dissipation assembly comprises a motor, the motor is fixedly connected to the inner wall of the shell, a rotating shaft is fixedly connected to an output shaft of the motor, and a fan blade is connected to one end, far away from the motor, of the rotating shaft.

Preferably, the rotating shaft penetrates through the first bevel gear and is fixedly connected with the first bevel gear, the first bevel gear is meshed with the second bevel gear, one end of the second bevel gear, which is far away from the first bevel gear, is fixedly connected with a rotating rod, the rotating rod penetrates through the supporting rod and is rotationally connected with the supporting rod, and one end, which is far away from the rotating rod, of the supporting rod is fixedly connected with the inner wall of the shell.

Preferably, the one end fixedly connected with disc that the second bevel gear was kept away from to the bull stick, one side fixedly connected with fixed block that the bull stick was kept away from to the disc, fixed block sliding connection is in the spout of slide, fixedly connected with montant on the outer wall of slide, the montant runs through the fixed chamber and with fixed chamber sliding connection.

Preferably, the swing assembly comprises a telescopic rod, one end of the telescopic rod is hinged to the outer wall of the vertical rod, the other end of the telescopic rod is fixedly connected with a long plate, and the telescopic rod is penetrated by the first fixing rod and is rotationally connected with the first fixing rod.

Preferably, the anti-blocking assembly comprises a hinging rod, one end of the hinging rod is hinged to the outer wall of the vertical rod, the other end of the hinging rod is slidably connected to the inner wall of the cylinder, the hinging rod is elastically connected with the inner wall of the cylinder through a first spring, and the cylinder is penetrated by a second fixing rod and is rotationally connected with the second fixing rod.

Preferably, the one end sliding connection that articulated pole was kept away from to the drum has the rapping bar, the inner wall that rapping bar and drum passes through second spring elastic connection, the one end fixedly connected with that the drum was kept away from to the rapping bar strikes the ball.

A heat conduction method of an LED high power lighting fixture, the heat conduction method comprising the steps of:

s1: the LED integrated chip dissipates heat during working, and the dissipated heat is conducted upwards to the heat absorbing sheet;

s2: conducting the heat of the step S1 from the heat absorbing sheet to the heat conducting pipe;

s3: and conducting the heat in the step S1 from the heat conducting pipe to the radiator for radiating.

(III) beneficial effects

The invention provides a heat conduction device of an LED high-power lighting lamp and a heat conduction method thereof. The beneficial effects are as follows:

(1) According to the heat conduction device and the heat conduction method of the LED high-power lighting lamp, heat emitted by the lamp continuously is conducted onto the radiator through the heat conduction assembly and the heat conduction assembly from the LED integrated chip to radiate through the heat absorption sheet and the heat conduction tube, meanwhile, the motor drives the fan blades to rotate to radiate the radiator, air flow is accelerated, hot air is rapidly discharged, the effect of accelerating radiation is achieved, in addition, through the use of the baffle plates, air flow formed by rotation of the fan blades can completely pass through the radiator, the radiator can be in full contact with the air flow, the condition that the air flow is not fully contacted with the radiator is effectively prevented, and the radiating effect of the radiator is better.

(2) According to the LED high-power lighting lamp heat conduction device and the heat conduction method thereof, when the motor rotates to drive the rotating shaft to rotate through the cooperation of the heat dissipation assembly and the swinging assembly, the rotating rod can drive the disc to rotate through the transmission effect of the first bevel gear and the second bevel gear, the fixed block can slide in the sliding groove of the sliding plate to drive the sliding plate to reciprocate up and down, the vertical rod can reciprocate in the vertical direction under the limiting effect of the fixed cavity to drive the telescopic rod to move, the long plate can swing up and down by a certain amplitude under the effect of the first fixed rod, air circulation is further accelerated, heat dissipation efficiency is improved, meanwhile, the heat of the heat conduction pipe can be dissipated, the temperature of the heat conduction pipe is reduced, and the effect of reducing the temperature of the lighting lamp is achieved.

(3) According to the LED high-power lighting lamp heat conduction device and the heat conduction method thereof, when the vertical rod performs reciprocating motion in the vertical direction through the heat dissipation assembly and the anti-blocking assembly, the hinge rod can be driven to slide on the inner wall of the cylinder, the beating ball can beat the filter screen under the action of the second fixing rod, so that dust attached to the filter screen can be shaken off when the LED high-power lighting lamp is used, the filter screen is effectively prevented from being blocked by the dust, the problem of heat dissipation effect of the device is affected, and meanwhile, the beating ball can be automatically reset in the follow-up beating process through the use of the second spring.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic elevational cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the structure B of FIG. 2 according to the present invention;

FIG. 5 is a schematic side view of a disk of the present invention;

fig. 6 is a schematic perspective view of the swing assembly of the present invention.

In the figure: 1. a tower-shaped lamp cap; 2. a housing; 3. a filter screen; 4. a lamp shade; 5. a heat conducting component; 6. a heat dissipation assembly; 7. a swing assembly; 8. an anti-jam assembly; 51. an LED integrated chip; 52. a heat absorbing sheet; 53. A heat conduction pipe; 54. a heat sink; 55. a baffle; 61. a motor; 62. a rotating shaft; 63. a fan blade; 64. a first bevel gear; 65. a second bevel gear; 66. a rotating rod; 67. a support rod; 68. a disc; 69. a fixed block; 610. a slide plate; 611. a vertical rod; 612. a fixed cavity; 71. a telescopic rod; 72. a first fixing rod; 73. A long plate; 81. a hinge rod; 82. a cylinder; 83. a first spring; 84. a second fixing rod; 85. beating the rod; 86. a second spring; 87. and (5) striking the ball.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a high-power illumination lamps and lanterns heat conduction device of LED, including tower lamp holder 1, through the use of tower lamp holder 1, make the device can be convenient for the staff install, the below fixedly connected with casing 2 of tower lamp holder 1, through the use of casing 2, can also cross and prevent dust treatment when carrying out the illumination lamps and lanterns, be provided with filter screen 3 on the lateral wall of casing 2, through the use of filter screen 3, when making cold and hot air circulate, cold and hot air enters into the inside of the device, can effectively prevent the entering of dust in the air, the inside fixed mounting of casing 2 has lamp shade 4, through the use of lamp shade 4, the surface that makes illumination lamps and lanterns can prevent that the dust from entering protection illumination lamps and lanterns, also can prevent that the mosquito from adhering to on illumination lamps and lanterns's surface, the inside of casing 2 is provided with heat conduction component 5, heat conduction component 5 includes LED integrated chip 51, the LED integrated chip 51 is arranged in the shell 2, the heat absorbing sheet 52 is arranged on the upper side of the LED integrated chip 51, the heat conducting tube 53 is arranged at one end of the heat absorbing sheet 52 far away from the LED integrated chip 51, the heat conducting tube 53 is far away from the heat radiator 54 at one end of the heat absorbing sheet 52, the baffle plates 55 are arranged at two sides of the heat radiator 54, the heat on the LED integrated chip 51 can be absorbed through the heat absorbing sheet 52, and simultaneously, the heat is conducted to the heat conducting tube 53, the heat is conducted to the heat radiator 54 through the heat conducting tube 53 to radiate, the heat of the LED integrated chip 51, the heat absorbing sheet 52 and the heat conducting tube 53 is reduced, the temperature of the LED integrated chip 51 is reduced, the service life of the LED lighting lamp is prolonged, the air flow formed by rotation of the follow-up fan blades 63 can completely pass through the heat radiator 54 through the use of the baffle plates 55, the heat radiator 54 can be in full contact with the air flow, the incomplete contact of the air flow with the heat radiator 54 is effectively prevented, the heat dissipation effect of the heat sink 54 is improved.

In this embodiment, a heat dissipation assembly 6 is disposed above the heat conduction assembly 5, the heat dissipation assembly 6 includes a motor 61, the motor 61 is fixedly connected to the inner wall of the housing 2, a rotating shaft 62 is fixedly connected to an output shaft of the motor 61, a fan blade 63 is connected to one end of the rotating shaft 62 far away from the motor 61, the motor 61 is enabled to drive the rotating shaft 62 to rotate through the operation of the motor 61, the fan blade 63 is further enabled to rotate to dissipate heat of the radiator 54, air flow is accelerated, hot air is enabled to be rapidly discharged, the effect of accelerating heat dissipation is achieved, the rotating shaft 62 penetrates through a first bevel gear 64 and is fixedly connected with the first bevel gear 64, a second bevel gear 65 is meshed with the first bevel gear 64, the second bevel gear 65 can be rotated when the rotating shaft 62 is driven to rotate through the rotation of the first bevel gear 64, the second bevel gear 65 can be conveniently provided with power for the rotation of a subsequent disc 68, the end of the second bevel gear 65 far away from the first bevel gear 64 is fixedly connected with a rotating rod 66, the rotating rod 66 penetrates through a supporting rod 67 and is rotationally connected with the supporting rod 67, the end of the supporting rod 67 far away from the rotating rod 66 is fixedly connected with the inner wall of the shell 2, the rotating rod 66 can be limited by the supporting rod 67 when being supported by the supporting rod 67, the rotation of the rotating rod 66 is more stable, the subsequent heat dissipation work is promoted, the end of the rotating rod 66 far away from the second bevel gear 65 is fixedly connected with a disc 68, one side of the disc 68 far away from the rotating rod 66 is fixedly connected with a fixed block 69, the fixed block 69 is in sliding connection with a sliding groove of the sliding plate 610, the sliding plate 610 is not contacted with the fixed block 69, the fixed block 69 slides in the sliding groove of the sliding plate 610, the fixed block 69 can play a limiting supporting role on the sliding plate 610 under the action of the sliding groove of the sliding plate 610, prevent fixed block 69 roll-off slide 610's spout, also can prevent simultaneously that slide 610 from taking place the possibility of skew when sliding, fixedly connected with montant 611 on the outer wall of slide 610, montant 611 runs through fixed chamber 612 and with fixed chamber 612 sliding connection, fixed chamber 612 fixed connection is on the inner wall of casing 2, use through fixed chamber 612, when can carry out spacing to montant 611, also can make montant 611 more stable when sliding, when rotating through motor 61 rotation drive pivot 62 rotation, can drive first bevel gear 64 rotation, through the transmission effect of second bevel gear 65, make bull stick 66 can drive disc 68 rotation, and then drive fixed block 69 and move on disc 68, make fixed block 69 can slide in slide 610's spout, drive slide 610 and reciprocate from top to bottom, under fixed chamber 612's spacing effect, make montant 611 can carry out vertical direction reciprocating motion, follow-up swing subassembly 7 and anti-clogging subassembly 8's work of being convenient for.

In this embodiment, the below of radiator unit 6 is provided with swing subassembly 7 and anti-clogging subassembly 8, swing subassembly 7 includes telescopic link 71, and the one end of telescopic link 71 articulates on the outer wall of montant 611, telescopic link 71's the other end fixedly connected with longeron 73, telescopic link 71 is run through by first dead lever 72 and rotate with first dead lever 72 and be connected, through montant 611 in vertical direction reciprocating motion, drive telescopic link 71 and remove, under the articulated effect of telescopic link 71 and montant 611, make telescopic link 71 can advance the flexible when can swing, under the effect of first dead lever 72, make longeron 73 can carry out the swing of upper and lower certain range, further accelerate the circulation of air, increase radiating efficiency, simultaneously can blow the heat dissipation to the heat pipe 53, reduce the temperature of heat pipe 53, thereby realize reducing the effect of illumination lamps and lanterns temperature.

In this embodiment, prevent blockking up subassembly 8 includes articulated pole 81, and the one end of articulated pole 81 articulates on the outer wall of montant 611, the other end sliding connection of articulated pole 81 is on the inner wall of drum 82, articulated pole 81 passes through first spring 83 elastic connection with the inner wall of drum 82, drum 82 is run through by second dead lever 84 and rotate with second dead lever 84 and be connected, through articulated pole 81, drum 82 and the use of beating pole 85, when making montant 611 carry out the reciprocating motion of vertical direction, articulated pole 81 can slide on the inner wall of drum 82, under the effect of first spring 83, the one end sliding connection who carries out effort is kept away from to drum 82 has beating pole 85, beating pole 85 and drum 82's inner wall and passing through second spring 86 elastic connection, through the use of second spring 86, can make beating ball 87 automatic re-setting in the follow-up beat in-process, the one end fixedly connected with beating ball 87 of beating pole 85, when the reciprocating motion of montant carries out the vertical direction, can drive pole 81 and slide on the inner wall of drum 82 and can prevent that the filter screen from beating the effect of beating the filter screen 3 from being carried out the filter screen at the filter screen that can be influenced by the effect when the filter screen is used to the filter screen 3 is knocked down, this filter screen can be guaranteed to the normal, this device can be blocked by the filter screen 3 when the dust is used to be attached to the filter screen is ensured.

The heat conduction method of the LED high-power lighting lamp comprises the following steps: s1: the LED integrated chip 51 dissipates heat during operation, and the dissipated heat is conducted upwards to the heat absorbing sheet 52; s2: conducting the heat of step S1 from the heat absorbing sheet 52 to the heat conducting pipe 53; s3: the heat of step S2 is conducted from the heat conduction pipe 53 to the heat sink 54 to dissipate the heat.

When the LED integrated chip is in operation (or in use), the lighting lamp is lightened and continuously generates heat, in the working process of the lighting lamp, the heat on the LED integrated chip 51 can be absorbed through the heat absorption sheet 52 and is simultaneously transmitted to the heat conduction pipe 53, the heat is transmitted to the radiator 54 through the heat conduction pipe 53 to dissipate heat, the heat of the LED integrated chip 51, the heat absorption sheet 52 and the heat conduction pipe 53 is reduced, the temperature of the LED integrated chip is reduced, the service life of the LED lighting lamp is prolonged, meanwhile, the motor 61 is in operation, the motor 61 can drive the rotating shaft 62 to rotate, the fan blades 63 are further rotated to dissipate heat of the radiator 54, the air flow is accelerated, the hot air is rapidly discharged, the radiator 54 is accelerated to dissipate heat, the airflow formed by the rotation of the follow-up fan blades 63 can completely pass through the radiator 54 through the use of the baffle 55, the radiator 54 can be fully contacted with the airflow, effectively preventing the condition that the air flow is not fully contacted with the radiator 54, leading the radiating effect of the radiator 54 to be better, driving the first bevel gear 64 to rotate through the rotation of the rotating shaft 62, driving the second bevel gear 65 to rotate under the transmission action of the second bevel gear 65, leading the rotating rod 66 to drive the circular disc 68 to rotate, further driving the fixed block 69 to move on the circular disc 68, leading the fixed block 69 to slide in the sliding groove of the sliding plate 610, leading the sliding plate 610 to reciprocate up and down, leading the vertical rod 611 to reciprocate in the vertical direction under the limit action of the fixed cavity 612, leading the telescopic rod 71 to move, leading the telescopic rod 71 to swing and stretch under the hinging action of the telescopic rod 71 and the vertical rod 611, leading the long plate 73 to swing up and down by a certain amplitude under the action of the first fixed rod 72, further accelerating the air circulation, the heat dissipation efficiency is increased, the heat dissipation effect of the heat conduction assembly 5 and the illuminating lamp is further improved, meanwhile, the heat conduction tube 53 can be blown to dissipate heat, the temperature of the heat conduction tube 53 is reduced, the effect of reducing the temperature of the illuminating lamp is achieved, meanwhile, the vertical rod 611 can reciprocate in the vertical direction, the hinged rod 81 can be driven to slide on the inner wall of the cylinder 82, the beating ball 87 can beat the filter screen 3 under the action of the second fixing rod 84, the dust attached to the filter screen 3 can be vibrated down when the lamp is used, the filter screen 3 is effectively prevented from being blocked by dust, normal air circulation and heat dissipation can be carried out when the device is operated, and the service life of the illuminating lamp is prolonged.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-power illumination lamps and lanterns heat conduction device of LED, includes tower lamp holder (1), its characterized in that: the novel lamp comprises a shell (2) fixedly connected to the lower portion of a tower-shaped lamp cap (1), a filter screen (3) is arranged on the side wall of the shell (2), a lampshade (4) is fixedly arranged in the shell (2), a heat conducting component (5) is arranged in the shell (2), a heat radiating component (6) is arranged above the heat conducting component (5), and a swinging component (7) and an anti-blocking component (8) are arranged below the heat radiating component (6);

the swing assembly (7) comprises a telescopic rod (71), one end of the telescopic rod (71) is hinged to the outer wall of the vertical rod (611), the other end of the telescopic rod (71) is fixedly connected with a long plate (73), and the telescopic rod (71) is penetrated by a first fixed rod (72) and is rotationally connected with the first fixed rod (72);

the anti-blocking assembly (8) comprises a hinging rod (81), one end of the hinging rod (81) is hinged to the outer wall of the vertical rod (611), the other end of the hinging rod (81) is connected to the inner wall of the cylinder (82) in a sliding mode, the hinging rod (81) is elastically connected with the inner wall of the cylinder (82) through a first spring (83), and the cylinder (82) is penetrated by a second fixing rod (84) and is rotatably connected with the second fixing rod (84);

one end that articulated pole (81) was kept away from to drum (82) is connected with and beats pole (85) in sliding mode, beat pole (85) and the inner wall of drum (82) and pass through second spring (86) elastic connection, the one end fixedly connected with that beats pole (85) kept away from drum (82) beats ball (87).

2. The LED high power lighting fixture heat transfer device of claim 1, wherein: the heat conduction assembly (5) comprises an LED integrated chip (51), the LED integrated chip (51) is arranged in the shell (2), a heat absorption sheet (52) is arranged on the upper side of the LED integrated chip (51), a heat conduction pipe (53) is arranged at one end, far away from the LED integrated chip (51), of the heat absorption sheet (52), a heat radiator (54) is arranged at one end, far away from the heat absorption sheet (52), of the heat conduction pipe (53), and baffles (55) are arranged on two sides of the heat radiator (54).

3. The LED high power lighting fixture heat transfer device of claim 1, wherein: the heat dissipation assembly (6) comprises a motor (61), the motor (61) is fixedly connected to the inner wall of the shell (2), a rotating shaft (62) is fixedly connected to an output shaft of the motor (61), and a fan blade (63) is connected to one end, far away from the motor (61), of the rotating shaft (62).

4. A LED high power lighting fixture heat transfer device as defined in claim 3, wherein: the rotating shaft (62) penetrates through the first bevel gear (64) and is fixedly connected with the first bevel gear (64), the first bevel gear (64) is meshed with the second bevel gear (65), one end of the second bevel gear (65) away from the first bevel gear (64) is fixedly connected with a rotating rod (66), the rotating rod (66) penetrates through the supporting rod (67) and is rotatably connected with the supporting rod (67), and one end of the supporting rod (67) away from the rotating rod (66) is fixedly connected with the inner wall of the shell (2).

5. The LED high-power lighting fixture heat transfer device of claim 4, wherein: one end that second bevel gear (65) was kept away from to bull stick (66) is fixedly connected with disc (68), one side fixedly connected with fixed block (69) that bull stick (66) was kept away from to disc (68), fixed block (69) sliding connection is in the spout of slide (610), fixedly connected with montant (611) on the outer wall of slide (610), montant (611) run through fixed chamber (612) and with fixed chamber (612) sliding connection.

6. A heat conduction method of an LED high-power lighting fixture, wherein the heat conduction method is applied to the LED high-power lighting fixture heat conduction device of any one of claims 1 to 5, and the heat conduction method comprises the following steps:

s1: the LED integrated chip (51) dissipates heat during operation, and the dissipated heat is conducted upwards to the heat absorbing sheet (52);

s2: conducting the heat of step S1 from the heat absorbing sheet (52) to the heat conducting tube (53);

s3: the heat of the step S2 is conducted from the heat conducting pipe (53) to the radiator (54) for radiating.