CN214333078U

CN214333078U - Improved solar tracking device

Info

Publication number: CN214333078U
Application number: CN202120492315.8U
Authority: CN
Inventors: 孙欢; 郭银萍; 穆化敏; 谭彭燕; 全龙浩; 齐璠静; 李昕晨
Original assignee: Spaceflight Building Design Research Institute Co ltd
Current assignee: Spaceflight Building Design Research Institute Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-10-01
Anticipated expiration: 2031-03-08

Abstract

The utility model relates to the technical field of solar energy resource utilization, in particular to an improved solar tracking device, which comprises a driving wheel, a shape memory alloy and a heat collecting cover; the driving wheel consists of a connecting section and a heat collecting section, and the heat collecting section is a heat pipe; the shape memory alloy is sleeved on the heat collection section, and the heat collection cover is fixed with the driving wheel and covers the shape memory alloy. The heat pipe is arranged at the partial section of the driving wheel, and due to the performance of the heat pipe, after the temperature of the heat pipe rises, heat transfer can be quickly realized, so that the temperature of the shape memory alloy rises quickly, and the heat transfer efficiency is improved.

Description

Improved solar tracking device

Technical Field

The utility model belongs to the technical field of solar energy resource utilization technique and specifically relates to a modified solar tracking device is related to.

Background

Under the condition of energy situation shortage, solar energy is increasingly paid attention to people as renewable clean energy. Due to low solar energy density and continuous change of illumination direction, the utilization rate of the solar energy is relatively low. The traditional solar automatic tracking system senses the position of the sun by using a sensor, controls a motor system by using a frequency converter, a PLC (programmable logic controller) or a single chip microcomputer, outputs a signal by using the sensor, amplifies the signal and sends the amplified signal to a control unit, the control unit starts to work, and an actuator is instructed to act to adjust a solar thermal collector, so that the function of tracking the sun by using the system is realized, and the utilization efficiency of solar energy is improved. However, both control and operation are complicated and require regular professional maintenance.

A novel solar tracking device is introduced in the patent with the patent publication No. CN212253193U, as shown in fig. 1-3, it adopts the structural form of memory alloy, heat collecting device and heat dissipating device, when in use, the solar device is fixed on the rotating device, the temperature in the heat collecting cover gradually rises along with the irradiation of sunlight received by the heat collecting cover, when the memory alloy reaches the action temperature, the memory alloy extends, the driving magnetic part on the memory alloy moves towards the driven magnetic part, and due to the repulsion between the two, the driving wheel is driven to rotate a certain angle, thereby realizing the tracking of solar energy (see the patent document for details).

However, the temperature transmission efficiency of the memory alloy in the above patent document is low, and the present invention is an improvement in the technology of the patent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modified solar tracking device to solve the above-mentioned technical problem who exists among the prior art.

In order to solve the technical problem, the utility model provides an improved solar tracking device, which comprises a driving wheel, a shape memory alloy and a heat collecting cover; the driving wheel consists of a connecting section and a heat collecting section, and the heat collecting section is a heat pipe; the shape memory alloy is sleeved on the heat collection section, and the heat collection cover is fixed with the driving wheel and covers the shape memory alloy.

Further, the heat collecting section is formed by two heat pipes; the heat absorption ends of the two heat pipes are fixed with each other, and the condensation ends of the two heat pipes are respectively fixed with the two ends of the connecting section.

Furthermore, the condensation end of the heat pipe is inserted into the connecting section.

Further, the condensation end of the heat pipe is inserted into the connecting section.

Furthermore, a condensing lens and a light screen are arranged at the top of the heat collection cover; the condenser lens and the light shielding plate are both positioned at the heat collection section.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model provides a rotary device sets up the subsection (the section of collecting heat) of action wheel into the heat pipe, because the performance of heat pipe, after the heat pipe temperature risees, can realize hot transmission fast for shape memory alloy's temperature risees fast, has improved heat transfer efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an improved solar tracking apparatus in the background art of the present invention;

FIG. 2 is a schematic structural view of a heat collecting device in the background art of the present invention;

fig. 3 is a schematic structural diagram of a heat dissipation device in the background art of the present invention;

FIG. 4 is a schematic structural view of a heat collecting cover according to an embodiment of the present invention;

FIG. 5 is another schematic structural view of a heat collecting cover according to an embodiment of the present invention;

FIG. 6 is another schematic structural view of a heat collecting cover according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a driving wheel according to an embodiment of the present invention.

Reference numerals:

1-a driving wheel; 2-a heat collecting device; 3-driven wheel;

4-active push rod; 5-a driven spring; 6-fixing the base;

7-passive support rods; 8-a vent hole; 9-a heat collecting cover;

10-shape memory alloy; 11-a pusher; 12-an active magnetic element;

13-a condenser; 14-a visor; 15-driven magnetic element;

16-perforating; 17-a seal; 18-a fixing member;

19-a return spring; 20-a connecting rod; 21-a connection hole;

22-a heat pipe; 23-connecting segment.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to specific embodiments.

As shown in fig. 4 and 7, the improved solar tracking apparatus provided by the present embodiment includes a driving wheel 1, a shape memory alloy 10 and a heat collecting cover 9; the driving wheel 1 consists of a connecting section 23 and a heat collecting section, and the heat collecting section is a heat pipe 22; the shape memory alloy 10 is sleeved on the heat collection section, and the heat collection cover 9 is fixed with the driving wheel 1 and covers the shape memory alloy 10.

In the rotating device provided by this embodiment, a partial section (heat collecting section) of the driving wheel 1 is set as the heat pipe 22, and due to the performance of the heat pipe, after the temperature of the heat pipe rises, heat transfer can be rapidly realized, so that the temperature of the shape memory alloy 10 rises rapidly, and the heat transfer efficiency is improved. The other structure of the rotating device of the present embodiment is the same as that of the technology of patent No. CN212253193U, and an improvement is made on the basis of the technology.

In detail, as shown in fig. 1 to 3, the rotating device includes a fixed seat 6, a driving wheel 1 and a driven wheel 3, which are all circular, a driving device, a heat collecting device 2 and a heat dissipating device; the driving wheel 1 and the driven wheel 3 are coaxially arranged and are both rotatably connected to the fixed seat 6; the driving device comprises a shape memory alloy 10, a driving push rod 4, a driving magnetic part 12 and a driven magnetic part 15, wherein the magnetic poles of the driving magnetic part and the driven magnetic part are the same; one end of the shape memory alloy 10 is fixed with the driving wheel 1, and the other end is fixed with the driving magnetic part 12; the driven magnetic part 15 is fixed with the driven wheel 3; when the other end of the shape memory alloy 10 extends and is close to the driven magnetic part 15, the repulsion force between the driving magnetic part 12 and the driven magnetic part 15 can push the driving wheel 1 to rotate; a driven spring 5 is arranged on the driven wheel 3; one end of the driving push rod 4 is fixed with the driving wheel 1; when the driving wheel 1 rotates, the other end of the driving push rod 4 can be abutted against the driven spring 5 and compress the driven spring 5; the heat collecting device 2 comprises a heat collecting cover 9; the heat collecting cover 9 is fixed with the driving wheel 1 and covers the shape memory alloy 10; the heat collecting cover 9 is provided with a vent hole 8; the heat dissipation device comprises a sealing element 17 which is connected with the heat collection cover 9 in a sliding way; the sealing member 17 is used to seal the vent hole 8; the shape memory alloy 10 is connected to the sealing member 17 for driving the sealing member 17 away from the ventilation hole 8 to open the ventilation hole 8.

In use, the solar device is secured to the rotating device and the sealing member 17 initially seals the vent holes 8 in the heat collecting cover 9. As the heat collecting cover 9 receives the irradiation of sunlight, the temperature in the heat collecting cover 9 gradually rises, and when the operating temperature of the shape memory alloy 10 is reached, the shape memory alloy 10 stretches and the driving magnetic part 12 at the end part of the shape memory alloy gradually approaches to the driven magnetic part 15. Since the driving magnetic member 12 and the driven magnetic member 15 have the same polarity, they generate a repulsive force, which pushes the driving wheel 1 to rotate in a direction away from the driven magnetic member 15, and at this time, the driven wheel 3 remains stationary. Meanwhile, a driving push rod 4 on the driving wheel 1 is contacted with a driven spring 5 on the driven wheel 3 and gradually compresses the driven spring 5; when the shape memory alloy 10 extends to a certain extent, the sealing member 17 on the shape memory alloy is driven to move, so that the sealing member 17 is separated from the vent hole 8 of the heat collection cover 9, the vent hole 8 is opened, and heat dissipation of the heat collection cover 9 is started. Along with the heat dissipation effect of the vent holes 8, the temperature in the heat collection cover 9 is gradually reduced, the shape memory alloy 10 begins to shrink and drives the driving magnetic part 12 on the shape memory alloy to be far away from the driven magnetic part 15, the repulsive force between the driving magnetic part and the driven magnetic part is gradually reduced, the driven spring 5 is in a compression state, the elastic force of the driven spring 5 begins to push the driven wheel 3 to rotate towards the direction the same as the rotating direction of the driving wheel 1, and the driven magnetic part 15 is close to the driving magnetic part 12. And as the shape memory alloy 10 contracts, the sealing member 17 thereon also moves, thereby sealing the vent hole 8 again. At this time, the rotating device completes one rotation and simultaneously drives the solar device on the rotating device to rotate once. The rotation device rotates in the same direction continuously, so that the solar device is adjusted to be always in the sunlight irradiation direction.

Wherein, a driven supporting rod 7 is fixed on the driven wheel 3; the driven magnetic ring is fixed on the driven support rod 7, the pushing piece 11 is fixed on the shape memory alloy 10, the pushing piece 11 moves along with the extension of the shape memory alloy 10, and when the pushing piece 11 reaches the position of the sealing piece 17, the pushing piece 11 pushes the sealing piece 17 to move. The pushing piece 11 can be abutted with the sealing piece 17 through the vent hole 8, and can also be abutted with the sealing piece 17 through the perforation 16 on the heat collecting cover 9, so that the sealing piece 17 is pushed to move. The top of the heat collecting cover 9 is provided with a condenser 13 and a shading plate 14.

Wherein, the heat dissipating double-fuselage includes the brace rod 20, the reset spring 19, and the fixed part 18 fixed with driving wheel 1; the fixing member 18 is provided with a connecting hole 21; the connecting rod 20 is slidably arranged in the connecting hole 21 in a penetrating way; the sealing member 17 is fixed at one end of the connecting rod 20, one end of the return spring 19 is abutted with the sealing member 17, and the other end of the return spring 19 is abutted with the fixing member 18; the return spring 19 is compressed when the shape memory contract pushes the seal 17 away from the vent 8. When the shape memory alloy 10 is stretched, it pushes the sealing member 17 to move toward the driven magnetic member 15, the vent hole 8 is gradually opened, and the return spring 19 is compressed, which is in a heat dissipation mode. After the driving wheel 1 rotates and the shape memory alloy 10 contracts, the sealing element 17 moves back under the action of the return spring 19 to cover the ventilation hole 8 again, and the ventilation hole 8 is tightly pressed at the ventilation hole 8 through the elastic force of the return spring 19 to seal the ventilation hole 8, and at the moment, the heat collection mode is realized. That is, the ventilation hole 8 is opened to be in a heat radiation mode, the ventilation hole 8 is closed to be in a heat collection mode, and the heat collection-heat radiation mode can be circularly switched through the structure, so that the driving wheel 1 is pushed to rotate, and meanwhile, the return spring 19 can improve the sealing effect.

Wherein, the heat collecting section can be formed by one heat pipe 22, and can also be formed by two heat pipes 22. Preferably, as shown in fig. 7, the heat collecting section is formed by two heat pipes 22; the heat absorbing ends of the two heat pipes 22 are fixed to each other, and the condensing ends of the two heat pipes 22 are fixed to both ends of the connection section 23, respectively. The heat absorption ends of the two heat pipes 22 absorb heat, and the condensation ends condense and release heat, so that the heat transfer efficiency is further improved.

The connection mode of the heat pipe 22 and the connection section 23 may be various, and preferably, the condensation end of the heat pipe 22 is inserted into the connection section 23. Preferably, the condensation end of the heat pipe 22 is inserted into the connection section 23. The connecting mode is simple, the installation is convenient, and certain strength can be ensured.

Further, as shown in fig. 4 to 6, a condenser 13 and a light screen 14 are arranged at the top of the heat collecting cover 9; the condenser lens 13 and the light shielding plate 14 are both located at the heat collecting section. In this embodiment, condensing lens 13 and light screen 14 all set up collect heat department can, carry out spotlight intensification heat pipe through condensing lens 13, light screen 14 carries out the sunshade, has shortened condensing lens 13 and light screen 14's length, has saved the material.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An improved solar tracking device is characterized by comprising a driving wheel, a shape memory alloy and a heat collecting cover;

the driving wheel consists of a connecting section and a heat collecting section, and the heat collecting section is a heat pipe; the shape memory alloy is sleeved on the heat collection section, and the heat collection cover is fixed with the driving wheel and covers the shape memory alloy.

2. The improved solar tracking apparatus as defined in claim 1 wherein the heat collection section is formed from two heat pipes; the heat absorption ends of the two heat pipes are fixed with each other, and the condensation ends of the two heat pipes are respectively fixed with the two ends of the connecting section.

3. The improved solar tracking apparatus as defined in claim 2 wherein the condensing end of the heat pipe is plugged into the connection section.

4. The improved solar tracking apparatus as defined in claim 3 wherein the condensing end of the heat pipe is inserted within the connecting section.

5. The improved solar tracking apparatus as defined in claim 1 wherein the top of the heat collection cover is provided with a condenser and a light screen; the condenser lens and the light shielding plate are both positioned at the heat collection section.