阅读说明：本技术 一种可升降的自馈能主动散热笔记本电脑桌 (Liftable self-feeding can initiatively dispel heat notebook computer table ) 是由 袁晓明 李龙 李思远 王健 于 2021-08-11 设计创作，主要内容包括：一种可升降的自馈能主动散热笔记本电脑桌,包括热电转化模块,风扇主动散热系统,升降连杆机构,转动置物框,桌板,本增加了热电转化模块和风扇主动散热系统,并将热电转化模块与风扇散热系统相耦合,形成自馈能主动散热模式。热电转化系统可以将与电脑桌接触的笔记本电脑或其他高温元件散热的热量进行回收,实现热电转化,将获得的电能提供给风扇散热系统。当转动置物框上物体温度达到一定温度阈值后,安装在置物框上的测温电偶会输出反馈信号给风扇散热系统,从而使风扇自主启动散热,起到改善风道、加速电脑散热的作用。同时可利用升降连杆机构和转动置物框调节桌面高度与物品放置角度,桌面上开设置物槽,使用便利性良好。(A liftable notebook computer desk capable of automatically radiating heat by self-feeding comprises a thermoelectric conversion module, a fan active heat radiating system, a lifting connecting rod mechanism, a rotary object placing frame and a desk plate. The thermoelectric conversion system can recover heat dissipated by a notebook computer or other high-temperature elements contacted with the computer desk, thermoelectric conversion is realized, and the obtained electric energy is provided for the fan heat dissipation system. When the temperature of the object on the rotating object placing frame reaches a certain temperature threshold value, the temperature measuring couple arranged on the object placing frame can output a feedback signal to the fan cooling system, so that the fan automatically starts to cool, and the effects of improving an air channel and accelerating the cooling of a computer are achieved. Meanwhile, the height of the desktop and the article placing angle can be adjusted by utilizing the lifting connecting rod mechanism and rotating the article placing frame, and the article placing groove is formed in the desktop, so that the use convenience is good.)

1. The utility model provides a liftable self-feeding can initiatively dispel the heat notebook computer table which characterized in that, it includes:

the computer desk main body is used for placing a notebook computer; it is composed of a desktop frame (8) and a lifting mechanism;

the thermoelectric conversion module (17) is arranged at the heating source, is used for absorbing heat energy at the heating source and converting the heat energy into electric energy, and simultaneously transmits the electric energy to the fan cooling system for storage; the thermoelectric conversion module (17) is divided into two parts, wherein the first part is arranged in the middle of a through groove of a bottom frame of the one-way large rotating frame (5) and is mainly used for absorbing heat generated by the notebook computer; the second part is arranged at the central position of the lower part of the fixed desktop of the desktop frame (8) and is mainly used for absorbing the heat emitted from the desktop and the object placing groove (19); the thermoelectric conversion module (17) is a thin sheet cube formed by a plurality of thermoelectric conversion units (29) which are arranged in parallel, wherein each thermoelectric conversion unit (29) comprises a heat pipe (25), a PN junction (26), a guide copper sheet (27) and a ceramic sheet (28), and the output power P generated by the thermoelectric conversion module is fed:

wherein N is single couple logarithm, alpha_pnSeebeck coefficient, T, of a thermocouple_hIs hot end face temperature, T_cIs the cold end temperature, R_LFor externally connected load resistance, R_pnThe internal resistance of the thermocouple;

a fan active heat dissipation system; the temperature measuring device mainly comprises a fan (22), a temperature measuring thermocouple (21) and a mounting rack, a thermoelectric conversion module (17) supplies power to the fan, and the temperature measuring device is mounted on a rotating desktop of a desktop frame (8) and used for dissipating heat of a notebook computer placed above an object placing frame;

a notebook computer mounting rack mainly comprises a small unidirectional rotating frame (1) and a large unidirectional rotating frame (5), wherein a temperature thermocouple (21) for absorbing heat and feeding back signals, a first part of a thermoelectric conversion module (17) for absorbing heat and converting the heat into electric energy and a fan (22) for dissipating heat of a computer are arranged at the bottom of the large unidirectional rotating frame (5).

2. The liftable self-feeding active heat dissipation notebook computer desk capable of being lifted according to claim 1, wherein the computer desk main body mainly comprises a small one-way rotating frame (1), a first roller chute type one-way clutch (3), a second roller chute type one-way clutch (4), a large one-way rotating frame (5), a rotating connecting block (7), a desktop frame (8), a first chute (9), a first connecting rod (10) with a sliding column, a first fixing bolt (11), a second connecting rod (12) with a sliding column, a track frame (13), a clamping groove rod (14), a third connecting rod (15) with a sliding column, a fourth connecting rod (16) with a sliding column, a second fixing bolt (18), a storage groove (19), a second chute (23) and a hinged circular shaft (24); the desktop frame (8) is a cuboid frame, two sliding grooves are formed in the two ends of the desktop frame, the left side is provided with a second sliding groove (23), and the right side is provided with a first sliding groove (9); the first connecting rod (10) with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the first connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding column; the lower end sliding column of the first connecting rod (10) with the sliding column is embedded in a sliding groove channel of the track frame (13), and the upper end sliding column of the first connecting rod (10) with the sliding column is embedded in a first sliding groove (9) on one side of the desktop frame (8); the second connecting rod (12) with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the second connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding column; the sliding column at the lower end of the connecting rod (12) with the sliding column is embedded in a sliding groove channel of the track frame (13), and the sliding column at the upper end of the connecting rod (12) with the sliding column is embedded in a first sliding groove (9) on one side of the desktop frame (8); the first connecting rod (10) with the sliding column is connected with the second connecting rod (12) with the sliding column through a first fixing bolt (11), and the first fixing bolt (11) is matched with the central cylindrical through holes of the two connecting rods to realize linkage; the third connecting rod (15) with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the third connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding column; the sliding column at the lower end of the connecting rod (15) with the sliding column is embedded in a sliding groove channel of the track frame (13), and the sliding column at the upper end of the connecting rod (15) with the sliding column is embedded in a second sliding groove (23) on one side of the desktop frame (8); the fourth connecting rod (16) with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the fourth connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding column; the sliding column at the lower end of the connecting rod (16) with the sliding column is embedded in a sliding groove channel of the track frame (13), and the sliding column at the upper end of the connecting rod (16) with the sliding column is embedded in a second sliding groove (23) on one side of the desktop frame (8); the connecting rod (15) with the sliding column in the third area is connected with the connecting rod (16) with the sliding column in the fourth area through a second fixing bolt (18), and the second fixing bolt (18) is matched with the central cylindrical through hole of the two connecting rods to realize linkage; the hinged round shaft (24) is a cylinder, and the left end and the right end of the hinged round shaft are respectively hinged in the shaft hole of the left fixed baffle (20) and the shaft hole of the right fixed baffle (2); the first roller inclined groove type one-way clutch (3) is fixed at two ends of the hinged circular shaft (24), and the first roller inclined groove type one-way clutch (3) can only rotate anticlockwise in one way and can bear clockwise force; the second roller inclined groove type one-way clutch (4) is fixed in the middle of the hinged circular shaft (24), and the second roller inclined groove type one-way clutch (4) can only rotate clockwise in one direction and can bear the force in the counterclockwise direction; the small unidirectional rotating frame (1) is a hollow rectangular frame, and a stepped clamping groove is formed in the small unidirectional rotating frame; the small unidirectional rotating frame (1) is fixedly hinged with the roller inclined groove type one-way clutch (3), and the small unidirectional rotating frame (1) can only rotate anticlockwise in one direction and can bear clockwise force; the large unidirectional rotating frame (5) is a rectangular frame with a bottom plate, the bottom of the large unidirectional rotating frame is provided with a frame structure and six fan grooves, a temperature thermocouple (21) for fixedly mounting a feedback signal, a first part of a thermoelectric conversion module (17) for absorbing heat and converting the heat into electric energy and a fan (22) for dissipating heat of a computer are fixedly arranged at the bottom of the large unidirectional rotating frame, and a stepped clamping groove is formed in the large unidirectional rotating frame; the large one-way rotating frame (5) is fixedly hinged with the second roller inclined groove type one-way clutch (4), and the large one-way rotating frame (5) can only rotate clockwise in one way and can bear the force in the counterclockwise direction; the first roller inclined groove type one-way clutch (3) can adjust the tightness state, and the small one-way rotating frames (1) can rotate randomly in the forward and reverse directions after being loosened manually, so that the adjustment and rotation of the two rotating frames cannot interfere.

3. The liftable self-feeding active heat dissipation notebook computer desk capable of being lifted according to claim 1, wherein the thermoelectric conversion module (17) is divided into two parts, the first part is installed at the center of the through groove of the bottom frame of the large unidirectional rotating frame (5), the upper end of the thermoelectric conversion module is spaced from the upper surface of the fan frame, and the lower end of the thermoelectric conversion module is flush with the lower plane of the large unidirectional rotating frame (5); the second part is arranged at the center of the lower part of the fixed desktop of the desktop frame (8) and is placed at the center of the inner part of the fixed desktop of the desktop frame (8), the upper plane of the thermoelectric conversion module (17) and the upper plate of the fixed desktop are positioned on the same horizontal plane, and the lower plane is also flush with the bottommost end of the desktop frame (8).

4. The liftable self-feeding active heat dissipation notebook computer desk capable of lifting according to claim 1, wherein the active heat dissipation system of the fan comprises a fan (22), a right fixed baffle (2), a right rotating plate (6), a left fixed baffle (20), the fan (22), a large unidirectional rotating frame (5) and a temperature thermocouple (21), wherein the temperature thermocouple (21) and the fan (22) are installed in a frame through groove at the bottom of the large unidirectional rotating frame (5), and the heat dissipation system of the fan is coupled with the thermoelectric conversion module (17) through an internal circuit; the left fixed baffle (20) is a round-corner cuboid with a certain thickness, and a shaft hole is formed in the right side of the cuboid; the left fixed baffle (20) is positioned in the middle of the upper surface of the desktop frame (8) and is vertical to the upper surface of the desktop frame (8); the left fixed baffle (20) divides the desktop into two parts, the left side of the left fixed baffle (20) is a fixed desktop part, and the right side of the left fixed baffle (20) is a rotating desktop part; the right fixed baffle (2) is a round-corner cuboid with a certain thickness, a shaft hole is formed in the left side surface of the plate, and the shaft hole and the hole in the right side of the left fixed baffle (20) are located on the same axis; the right fixed baffle (2) is positioned on the right side of the upper surface of the desktop frame (8) and is vertical to the upper surface of the desktop frame (8); the right rotating plate (6) is connected with the right fixed baffle (2) through a rotating connecting block (7); the right rotating plate (6) can rotate by taking the center of the rotating connecting block (7) as an axis.

5. The liftable self-feeding active heat dissipation notebook computer desk capable of being lifted according to claim 1, wherein the slot bar (14) is a rectangular bar, and the lower surface of the slot bar is provided with a certain number of semi-cylindrical slots; the right end of the slot clamping rod (14) is connected with the track frame (13), and the slot clamping rod (14) can rotate around the central axis of a wafer at the right end of the slot clamping rod; the sliding column at the lower end of the connecting rod (12) with the sliding column is matched with the semi-cylindrical groove on the lower surface of the clamping groove rod (14).

Technical Field

The invention belongs to the field of office furniture, and particularly relates to a notebook computer desk, in particular to a liftable self-feeding notebook computer desk capable of actively dissipating heat.

Background

The notebook computer provides a great deal of convenience for people to work, study, entertainment and the like, and becomes a necessity of daily life of people. However, the notebook computer generates a large amount of heat during long-time operation, which not only reduces the operation speed of the notebook computer, but also often causes the notebook computer to crash or blue screen, and even seriously damages the hardware of the notebook computer. Generally, in order to solve the heat dissipation problem of the notebook computer, most users will equip the notebook computer with a heat dissipation base. The common heat dissipation base is a porous flat plate with a supporting structure, the flat plate is attached to the bottom of the notebook, and a fan is arranged on the other side of the porous flat plate for heat dissipation. However, this solution is a passive heat dissipation, i.e. the user senses that the notebook computer is "hot" and then turns on, and in fact, the notebook computer is already damaged in this state; meanwhile, the laptop is limited to be an external device which is not convenient to carry, and a common computer desk does not have a heat dissipation function, so that the laptop works in an overheat state; in addition, the heat dissipation base needs to be indirectly powered by a notebook computer or directly powered by a power supply, and consumes more or less electric energy.

Aiming at the problems, the invention designs a self-feeding active heat dissipation computer desk with a device which is internally provided with a coupled thermoelectric conversion module and a fan active heat dissipation system, wherein the thermoelectric conversion module can absorb heat emitted by a heating body on a desktop, such as a notebook computer, or a high-temperature object in a storage tank to carry out thermoelectric generation energy feedback to supply power to the fan active heat dissipation system, and a thermoelectric couple is arranged in a storage frame to carry out real-time temperature monitoring, so that the fan active heat dissipation system can realize self-starting heat dissipation according to the temperature of the object on the storage frame, and meanwhile, the notebook computer desk can also realize lifting in order to realize high matching with the notebook computer and facilitate a user.

Disclosure of Invention

The invention aims to design a liftable self-feeding notebook computer desk capable of actively dissipating heat, which can absorb heat dissipated by a notebook computer and other high-temperature objects working on the desk, and provide electric energy to drive a fan heat dissipation system to dissipate heat of the notebook computer through thermoelectric power generation, so that the notebook computer is protected without external energy.

In order to achieve the purpose, the invention provides the following technical scheme:

a liftable self-feeding notebook computer desk capable of actively dissipating heat is characterized in that the notebook computer desk comprises a computer desk main body, a thermoelectric conversion module 17 and a fan active heat dissipation system; the thermoelectric conversion module (17) is a slice cube formed by arranging a plurality of thermoelectric conversion units (29) in parallel, wherein each thermoelectric conversion unit (29) comprises a heat pipe (25), a PN junction (26), a guide copper sheet (27) and a ceramic sheet (28), the output power P generated by energy feedback is shown as formula 1, and N in formula 1 is single couple logarithm and alpha_pnSeebeck coefficient, T, of a thermocouple_hIs hot end face temperature, T_cIs the cold end temperature, R_LFor externally connected load resistance, R_pnThe thermoelectric conversion module 17 is used for absorbing heat emitted by a notebook computer and other high-temperature objects arranged on the thermoelectric conversion module and providing electric energy for the active cooling system of the fan through thermoelectric generation, and is used for providing the internal resistance of the thermoelectric couple; furthermore, the heat dissipation of the notebook computer is realized under the condition of not needing external energy.

The computer desk main body mainly comprises a small unidirectional rotating frame 1, a roller inclined groove type one-way clutch 3, a roller inclined groove type one-way clutch 4, a large unidirectional rotating frame 5, a rotating connecting block 7, a desktop frame 8, a first sliding groove 9, a first connecting rod 10 with a sliding column, a first fixing bolt 11, a second connecting rod 12 with a sliding column, a track frame 13, a clamping groove rod 14, a third connecting rod 15 with a sliding column, a fourth connecting rod 16 with a sliding column, a second fixing bolt 18, an object placing groove 19, a second sliding groove 23 and a hinged circular shaft 24.

The thermoelectric conversion module 17 is divided into two parts, wherein the first part is arranged in the middle of a through groove of a bottom frame of the large unidirectional rotating frame 5, the upper end of the first part is spaced from the upper surface of the fan frame, and the lower end of the first part is flush with the lower plane of the large unidirectional rotating frame 5; the second part is arranged at the center of the lower part of the fixed desktop of the desktop frame 8 and is placed at the center of the inner part of the fixed desktop of the desktop frame 8, the upper plane of the thermoelectric conversion module 17 and the upper plate of the fixed desktop are positioned at the same horizontal plane, and the lower plane is also flush with the lowest end of the desktop frame 8

The fan active heat dissipation system comprises a fan 22, a right fixed baffle 2, a right rotating plate 6, a left fixed baffle 20, a large unidirectional rotating frame 5 and a temperature thermocouple 21, wherein the fan 22 and the temperature thermocouple 21 are installed on a frame at the bottom of the large unidirectional rotating frame 5, and the fan active heat dissipation system is coupled with the thermoelectric conversion module 17 through an internal circuit.

Desktop frame 8 is a cuboid frame, and inside both ends are provided with two spouts, and the left side is second spout 23, and the right side is first spout 9. The first connecting rod 10 with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the first connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding columns. The lower end sliding column of the first connecting rod with sliding column 10 is embedded in the sliding chute channel of the track frame 13, and the upper end sliding column of the first connecting rod with sliding column 10 is embedded in the first sliding chute 9 at one side of the desktop frame 8. The second connecting rod 12 with the sliding columns is a square rod with a cylindrical through hole at the center, two ends of the square rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding columns. The lower end sliding column of the second connecting rod 12 with the sliding column is embedded in the sliding channel of the track frame 13, and the upper end sliding column of the second connecting rod 12 with the sliding column is embedded in the first sliding groove 9 on one side of the desktop frame 8. The first connecting rod 10 with the sliding column is connected with the second connecting rod 12 with the sliding column through a first fixing bolt 11, and the first fixing bolt 11 is matched with the central cylindrical through holes of the two connecting rods to realize linkage. The object placing groove 19 is arranged in the desktop frame 8, and the upper surface of the object placing groove 19 is flush with the desktop and has a certain depth.

The third connecting rod 15 with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the third connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with a protruding sliding column. The lower end sliding column of the third connecting rod 15 with the sliding column is embedded in the sliding channel of the track frame 13, and the upper end sliding column of the third connecting rod 15 with the sliding column is embedded in the second sliding groove 23 on one side of the desktop frame 8. The fourth connecting rod 16 with a sliding column is a square rod with a cylindrical through hole at the center, two ends of the fourth connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with a protruding sliding column. The lower end sliding column of the fourth connecting rod with sliding column 16 is embedded in the sliding chute channel of the track frame 13, and the upper end sliding column of the fourth connecting rod with sliding column 16 is embedded in the second sliding chute 23 at one side of the desktop frame 8. And linkage is realized. The third connecting rod 15 with the sliding column is connected with the fourth connecting rod 16 with the sliding column through a second fixing bolt 18, and the second fixing bolt 18 is matched with the central cylindrical through holes of the two connecting rods to realize linkage.

Left side fixed stop 20 is a fillet cuboid that has certain thickness, has a shaft hole on the board right side. The left fixed baffle 20 is positioned in the middle of the upper surface of the desktop frame 8 and is vertical to the upper surface of the desktop frame 8. The left fixed baffle 20 divides the desktop into two parts, the left side of the left fixed baffle 20 is a fixed desktop part, and the right side of the left fixed baffle 20 is a rotating desktop part. Right side fixed stop 2 is a fillet cuboid that has certain thickness, has a hole on the left side surface of board, and this hole and the hole on left fixed stop 20 right sides are located the same axis. The right fixed baffle 2 is positioned on the right side of the upper surface of the desktop frame 8 and is vertical to the upper surface of the desktop frame 8. The right rotating plate 6 is connected with the right fixed baffle 2 through a rotating connecting block 7. The right rotating plate 6 can rotate around the center of the rotating connecting block 7.

The hinged round shaft 24 is a cylinder, and the left end and the right end of the hinged round shaft are respectively hinged in the shaft hole of the left fixed baffle plate 20 and the shaft hole of the right fixed baffle plate 2. The first roller chute type one-way clutch 3 is fixed at two ends of the hinged circular shaft 24, and the first roller chute type one-way clutch 3 can only rotate anticlockwise in one direction and can bear force in the clockwise direction. The second roller chute type one-way clutch 4 is fixed in the middle of the hinged circular shaft 24, and the second roller chute type one-way clutch 4 can only rotate clockwise in one direction and can bear the force in the counterclockwise direction. The small unidirectional rotating frame 1 is a hollow rectangular frame, and a stepped clamping groove is formed in the small unidirectional rotating frame. The small unidirectional rotating frame 1 is fixedly hinged with the first roller inclined groove type one-way clutch 3, and the small unidirectional rotating frame 1 can only rotate anticlockwise in one direction and can bear clockwise force. The large unidirectional rotating frame 5 is a rectangular frame, the bottom of the large unidirectional rotating frame is provided with a frame structure and six fan grooves, the large unidirectional rotating frame is used for fixedly mounting a temperature thermocouple 21 for feeding back signals, a first part of a thermoelectric conversion module 17 for absorbing heat and converting the heat into electric energy and a fan 22 for radiating heat of a computer, and a stepped clamping groove is formed in the large unidirectional rotating frame. The large one-way rotating frame 5 is fixedly hinged with the second roller inclined groove type one-way clutch 4, and the large one-way rotating frame 5 can only rotate clockwise in one way and can bear the force in the counterclockwise direction. The first roller inclined groove type one-way clutch 3 can adjust the tightness state, and the small one-way rotating frames 1 can rotate randomly along the reverse direction after being loosened manually, so that the adjustment and rotation of the two rotating frames cannot interfere.

The slot-engaging rod 14 is a rectangular rod having a certain number of semi-cylindrical slots on its lower surface. The right end of the notch rod 14 is connected with the track frame 13, and the notch rod 14 can rotate around the central axis of the right end disk. The sliding column at the lower end of the connecting rod 12 with the sliding column is matched with the semi-cylindrical groove on the lower surface of the clamping groove rod 14.

Compared with the prior art, the invention has the beneficial effects that:

the invention relates to a liftable self-feeding active heat dissipation notebook computer desk, wherein when a notebook computer or other high-temperature elements on a desktop generate heat, heat pipes in a thermoelectric conversion module can quickly absorb the heat to work, and through thermoelectric generation, electric quantity generated by the thermoelectric conversion module is transmitted to a fan heat dissipation system to store electric energy for the fan heat dissipation system. When the electrical equipment such as a notebook computer and the like placed above the rotating storage frame reaches a certain temperature, for example, the temperature is higher than 40 ℃, the thermocouple arranged in the storage frame outputs a signal, so that the self-starting fan cooling system realizes active cooling, the air channel can be improved, the cooling capacity can be accelerated by driving the fan to rotate, and the energy utilization rate and the cooling effect are improved. Meanwhile, the angle and the height of the desktop can be adjusted by utilizing the lifting connecting rod mechanism and the steering frame, and the storage groove is formed, so that the use convenience is good.

Drawings

FIG. 1 is a schematic diagram of a liftable notebook computer desk with self-feeding and active heat dissipation functions;

FIG. 2 is a schematic view of the thermoelectric conversion module and the thermoelectric conversion unit;

description of reference numerals:

1-a small unidirectional rotating frame, 2-a right fixed baffle, 3-a first roller chute type one-way clutch, 4-a second roller chute type one-way clutch, 5-a large unidirectional rotating frame, 6-a right rotating plate, 7-a rotating connecting block, 8-a desktop frame, 9-a first chute, 10-a first connecting rod with a sliding column, 11-a first fixed bolt, 12-a second connecting rod with a sliding column, 13-a track frame, 14-a chute rod, 15-a third connecting rod with a sliding column, 16-a fourth connecting rod with a sliding column, 17-a thermoelectric conversion module, 18-a second fixed bolt, 19-a storage groove, 20-a left fixed baffle and 21-a temperature thermocouple; 22-a fan, 23-a second chute, 24-a hinged circular shaft, 25-a heat pipe, 26-a PN junction, 27-a guide copper sheet, 28-a ceramic sheet and 29-a thermoelectric conversion unit.

Detailed Description

The invention is further illustrated by the following figures and examples. It should be noted that the technical solution and the design principle of the present invention are described in detail below only with an optimized technical solution, but the protection scope of the present invention is not limited thereto.

A liftable self-feeding notebook computer desk capable of actively dissipating heat, as shown in fig. 1, comprising:

the computer desk main body is used for placing a notebook computer; it is composed of a desktop frame 8 and a lifting mechanism;

and the thermoelectric conversion module 17 is installed at the heat-generating source and used for absorbing heat energy at the heat-generating source and converting the heat energy into electric energy, and simultaneously transmitting the electric energy to the fan cooling system for storage. The thermoelectric conversion module 17 is divided into two parts, wherein the first part is arranged in the middle of the through groove of the bottom frame of the one-way large rotating frame 5 and is mainly used for absorbing heat generated by the notebook computer; the second part is arranged at the center of the lower part of the fixed table top of the table top frame 8 and is mainly used for absorbing the heat emitted from the table top and the object placing groove 19. The thermoelectric conversion module 17 is a thin cube formed by arranging a plurality of thermoelectric conversion units 29 in parallel, wherein a single thermoelectric conversion unit 29 comprises a heat pipe 25, a PN junction 26, a guiding copper sheet 27 and a ceramic sheet 28, and the power output P:

wherein N is single couple logarithm, alpha_pnSeebeck coefficient, T, of a thermocouple_hIs hot end face temperature, T_cIs the cold end temperature, R_LFor externally connected load resistance, R_pnThe internal resistance of the thermocouple; the thermoelectric conversion module 17 may be installed at a position having a heat source, such as a bottom frame through groove central position of the one-way large rotating frame 5 and an inner central position where the table top frame 8 fixes the table top, as much as possible in order to collect energy as much as possible and accumulate more energy;

a fan active heat dissipation system; the temperature measuring device mainly comprises a fan 22, a temperature measuring thermocouple 21 and a mounting rack, is powered by a thermoelectric conversion module 17, is mounted on a rotating desktop of a desktop frame 8 and is used for radiating a notebook computer placed above an object placing frame;

a notebook computer mounting bracket mainly comprises a small unidirectional rotating frame 1 and a large unidirectional rotating frame 5, wherein a temperature thermocouple 21 for absorbing heat and feeding back signals, a first part of a thermoelectric conversion module 17 for absorbing heat and converting the heat into electric energy and a fan 22 for dissipating heat of a computer are arranged at the bottom of the large unidirectional rotating frame 5.

As shown in fig. 1, a small unidirectional rotation frame 1, a first roller chute type one-way clutch 3 (similar to the existing notebook computer heat dissipation frame and directly available from the market), a second roller chute type one-way clutch 4 (similar to the existing notebook computer heat dissipation frame and directly available from the market), a large unidirectional rotation frame 5, a rotation connection block 7, a desktop frame 8, a first chute 9, a first connecting rod with a sliding column 10, a first fixing bolt 11, a second connecting rod with a sliding column 12, a track frame 13, a slot clamping rod 14, a third connecting rod with a sliding column 15, a fourth connecting rod with a sliding column 16, a second fixing bolt 18, a placement groove 19, a second chute 23 and a hinge circular shaft 24 are mounted on the computer desk main body; the desktop frame 8 is a cuboid frame, two sliding grooves are formed in two ends of the desktop frame, the left side is provided with a second sliding groove 23, and the right side is provided with a first sliding groove 9; the first connecting rod 10 with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the first connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding column; the lower end sliding column of the first connecting rod with sliding column 10 is embedded in the sliding chute channel of the track frame 13, and the upper end sliding column of the first connecting rod with sliding column 10 is embedded in the first sliding chute 9 at one side of the desktop frame 8; the second connecting rod 12 with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the second connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with a protruding sliding column; the sliding column at the lower end of the connecting rod 12 with the sliding column is embedded in the sliding channel of the track frame 13, and the sliding column at the upper end of the connecting rod 12 with the sliding column is embedded in the first sliding groove 9 at one side of the desktop frame 8; the first connecting rod with the sliding column 10 is connected with the second connecting rod with the sliding column 12 through a first fixing bolt 11, and the first fixing bolt 11 is matched with the central cylindrical through holes of the two connecting rods to realize linkage; the third connecting rod 15 with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the third connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with a protruding sliding column; the lower end sliding column of the third connecting rod 15 with the sliding column is embedded in the sliding channel of the track frame 13, and the upper end sliding column of the third connecting rod 15 with the sliding column is embedded in the second sliding groove 23 on one side of the desktop frame 8; the fourth connecting rod 16 with the sliding columns is a square rod with a cylindrical through hole in the center, two ends of the fourth connecting rod are processed by round corners, and one side surface of each of the upper end and the lower end is provided with the protruding sliding column; the sliding column at the lower end of the connecting rod 16 with the sliding column is embedded in the sliding channel of the track frame 13, and the sliding column at the upper end of the connecting rod 16 with the sliding column is embedded in the second sliding groove 23 at one side of the desktop frame 8; the connecting rod 15 with the sliding column is connected with the connecting rod 16 with the sliding column through a second fixing bolt 18, and the second fixing bolt 18 is matched with the central cylindrical through holes of the two connecting rods to realize linkage; the hinged round shaft 24 is a cylinder, and the left end and the right end of the hinged round shaft are respectively hinged in the shaft hole of the left fixed baffle 20 and the shaft hole of the right fixed baffle 2; the first roller inclined groove type one-way clutch 3 is fixed at two ends of the hinged circular shaft 24, and the first roller inclined groove type one-way clutch 3 can only rotate anticlockwise in one direction and can bear clockwise force; the second roller inclined groove type one-way clutch 4 is fixed in the middle of the hinged circular shaft 24, and the second roller inclined groove type one-way clutch 4 can only rotate clockwise in one direction and can bear the force in the counterclockwise direction; the small unidirectional rotating frame 1 is a hollow rectangular frame, and a stepped clamping groove is formed in the small unidirectional rotating frame; the small unidirectional rotating frame 1 is fixedly hinged with the roller inclined groove type one-way clutch 3, and the small unidirectional rotating frame 1 can only rotate anticlockwise in one direction and can bear clockwise force; the large unidirectional rotating frame 5 is a rectangular frame with a bottom plate, the bottom of the large unidirectional rotating frame is provided with a frame structure and six fan grooves, a temperature thermocouple 21 for fixedly mounting a feedback signal, a first part of a thermoelectric conversion module 17 for absorbing heat and converting the heat into electric energy and a fan 22 for dissipating heat of a computer are fixedly arranged, and a step-shaped clamping groove is formed in the large unidirectional rotating frame; the large one-way rotating frame 5 is fixedly hinged with the second roller inclined groove type one-way clutch 4, and the large one-way rotating frame 5 can only rotate clockwise in one way and can bear the force in the counterclockwise direction; the first roller inclined groove type one-way clutch 3 can adjust the tightness state, and the small one-way rotating frames 1 can rotate randomly along the reverse direction after being loosened manually, so that the adjustment and rotation of the two rotating frames cannot interfere. In specific implementation, the thermoelectric conversion module 17 may be placed in a center position inside a fixed tabletop of the tabletop frame 8, an upper plane of the thermoelectric conversion module 17 is at the same level with an upper plate of the tabletop, and a lower plane of the thermoelectric conversion module 17 is also at the same level with the bottom end of the tabletop frame 8. The fan active heat dissipation system comprises a fan 22, a right fixed baffle 2, a right rotating plate 6 and a left fixed baffle 20, wherein the fan 22 is arranged in four square through grooves on the surface of the left fixed baffle 20, and the fan active heat dissipation system is coupled with the thermoelectric conversion module 17 through an internal circuit; the left fixed baffle 20 is a round-corner cuboid with a certain thickness, and a shaft hole is formed in the right side of the left fixed baffle; the left fixed baffle 20 is positioned in the middle of the upper surface of the desktop frame 8 and is vertical to the upper surface of the desktop frame 8. The left fixed baffle 20 divides the desktop into two parts, the left side of the left fixed baffle 20 is a fixed desktop part, and the right side of the left fixed baffle 20 is a rotating desktop part; the right fixed baffle 2 is a round-corner cuboid with a certain thickness, a shaft hole is formed in the left side surface of the plate, and the shaft hole and the hole in the right side of the left fixed baffle 20 are located on the same axis; the right fixed baffle 2 is positioned on the right side of the upper surface of the desktop frame 8 and is vertical to the upper surface of the desktop frame 8; the right rotating plate 6 is connected with the right fixed baffle 2 through a rotating connecting block 7. The right rotating plate 6 can rotate around the center of the rotating connecting block 7. The slot-engaging rod 14 is a rectangular rod having a certain number of semi-cylindrical slots on its lower surface. The right end of the slot clamping rod 14 is connected with the track frame 13, and the slot clamping rod 14 can rotate around the central axis of a wafer at the right end of the slot clamping rod; the sliding column at the lower end of the connecting rod 12 with the sliding column is matched with the semi-cylindrical groove on the lower surface of the clamping groove rod 14.

During specific implementation, the object placing groove 19 can be further formed in the desktop frame 8, and the upper surface of the object placing groove 19 is flush with the desktop and has a certain depth.

The working principle and the process of the invention are as follows:

the liftable self-energy-feedback active heat-dissipation notebook computer desk shown in fig. 1 is taken as an example, and has the following working processes:

1. energy feedback and heat dissipation processes: when an external heat source is in contact with the desktop of the computer or the notebook computer works to generate heat to a certain degree, the heat is rapidly absorbed by the heat conduction pipe 25 in the thermoelectric conversion module and transferred to the ceramic plate 28, the heat is accumulated at the high-temperature end of the PN junction 26, and due to different free electron energies at different temperatures, the free electron energy at the side with the high temperature is higher than that at the side with the low temperature, an electron beam is generated, and further, output voltage is generated. Then, the current flows out from the low temperature end of the PN junction 26 through the guiding copper sheet 27, and the generated electric energy is stored in the fan active heat dissipation system through the wire coupling. When the temperature of the notebook computer on the object placing frame exceeds the threshold value, the temperature thermocouple outputs a signal, so that the fan cooling system outputs power to drive the fan 22 to effectively cool the computer placed on the unidirectional rotating frame. When the temperature of an object in contact with the table top is high or the contact time is long, the thermoelectric conversion module can absorb enough heat to continuously provide electric energy for the fan cooling system, and the fan cooling system can realize self-starting cooling so as to cool.

2. The desktop lifting process: first, in the initial position, the lower end of the second sliding-column-equipped connecting rod 12 is matched with the rightmost semi-cylindrical groove on the lower surface of the notch rod 14. The upper and lower end sliding columns of the connecting rod 12 with the sliding column are farthest from the upper and lower end sliding columns of the connecting rod 10 with the sliding column, the upper and lower end sliding columns of the connecting rod 15 with the sliding column are farthest from the upper and lower end sliding columns of the connecting rod 16 with the sliding column, and the table top is at the lowest height. Next, the first fixing bolt 11 and the second fixing bolt 18 are loosened, the slot lever 14 is lifted up clockwise, and the tabletop is lifted up to a predetermined height by hand, and at the same time, the upper and lower end slide columns of the link 12 with the second slide column, the upper and lower end slide columns of the link 10 with the first slide column, the upper and lower end slide columns of the link 15 with the third slide column, and the upper and lower end slide columns of the link 16 with the fourth slide column slide in the corresponding slide slots in directions to approach each other, respectively. The first fixing bolt 11 and the second fixing bolt 18 are then tightened. The slot clamping rod 14 is put down along the anticlockwise direction, so that the sliding column at the lower end of the second connecting rod 12 with the sliding column is matched with the semi-cylindrical slot at the corresponding position of the lower surface of the slot clamping rod 14, and the stability is improved.

3. The desktop descending process: first, in the initial position, the lower end of the second sliding-column-equipped connecting rod 12 is engaged with the leftmost semi-cylindrical groove on the lower surface of the slot-locking rod 14. The upper and lower end sliding columns of the connecting rod 12 with the sliding column are closest to the upper and lower end sliding columns of the connecting rod 10 with the sliding column, the upper and lower end sliding columns of the connecting rod 15 with the sliding column are closest to the upper and lower end sliding columns of the connecting rod 16 with the sliding column, and the desktop is at the highest height. Next, the first fixing bolt 11 and the second fixing bolt 18 are loosened, the slot bar 14 is lifted up clockwise, and the tabletop is lowered to a predetermined height by hand, and at the same time, the upper and lower end slide columns of the link 12 with the second slide column, the upper and lower end slide columns of the link 10 with the first slide column, the upper and lower end slide columns of the link 15 with the third slide column, and the upper and lower end slide columns of the link 16 with the fourth slide column slide in the corresponding slide slots in directions away from each other. The first fixing bolt 11 and the second fixing bolt 18 are then tightened. The slot clamping rod 14 is put down along the anticlockwise direction, so that the sliding column at the lower end of the second connecting rod 12 with the sliding column is matched with the semi-cylindrical slot at the corresponding position of the lower surface of the slot clamping rod 14, and the stability is improved.

4. The adjusting process of the storage frame is as follows: the small unidirectional rotating frame 1 can only rotate anticlockwise in one direction and can bear clockwise force. The large unidirectional rotating frame 5 can only rotate clockwise in one direction and can bear the force in the counterclockwise direction. After the clutch is released, the small unidirectional rotating frame 1 can be adjusted in any direction, and then the frame can be rotated to adjust the relative angle and position.

According to the liftable self-feeding active heat dissipation notebook computer desk, when a high-temperature element is placed on the desktop or a notebook computer on the storage frame generates heat, the heat can be rapidly absorbed by the heat conduction pipe in the thermoelectric conversion module, and the thermoelectric conversion module generates energy to be transmitted to the fan heat dissipation system through thermoelectric generation, so that electric energy is stored for the fan heat dissipation system. When the temperature of electrical appliances such as a laptop and the like placed on the tabletop or above the rotary storage frame is higher than 40 ℃, the temperature thermocouple outputs signals, so that the fan cooling system is started automatically to realize active cooling, an air channel can be improved through rotation of the fan, the cooling capacity is accelerated, and the energy utilization rate and the cooling effect are improved. Meanwhile, the angle and the height of the desktop can be adjusted by utilizing the lifting connecting rod mechanism and the steering frame, and the storage groove is formed, so that the use convenience is good.

The thermoelectric conversion module is composed of a plurality of thermoelectric conversion units, and for a single thermoelectric conversion unit, electromotive force generated by thermoelectric generation of a single thermocouple (PN junction) is as follows:

U_pn＝α_pn(T_h-T_c) (2)

in the formula of U_pnRepresenting a thermoelectromotive force, α_pnSeebeck coefficient, T, representing two conductors_hRepresents the temperature value of the high temperature end, T_cRepresenting the low temperature end temperature value.

The output power of the thermoelectric conversion unit is:

in the formula, R_LIs the resistance of an externally connected load, R_pnThe internal resistance of the thermocouple.

Since the thermoelectric conversion module is constructed by connecting the N thermoelectric conversion units, the output power P is:

under certain residual heat condition, assuming that N is 300, T_h＝50℃，T_c＝10℃，R_L＝R_pn＝10Ω，α_pn＝3×10^{- 2}V/℃。

The calculated output power of the thermoelectric conversion module is about 10.8W, and the thermoelectric conversion module can be used for rotating the small electric fan after being stabilized by the conventional voltage stabilizing technology, so that the energy-feeding working mode can be realized. If the electric energy is too much or surplus, the rechargeable battery can be added for storing energy.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any obvious modifications, substitutions or alterations can be made by those skilled in the art without departing from the spirit of the present invention.

The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.