阅读说明：本技术 自动防雪装置、光伏发电装置及客车 (Automatic snow protection device, photovoltaic power generation device and passenger car ) 是由 项建 张凯 黄冠翔 李珂 于 2020-07-17 设计创作，主要内容包括：本发明公开了一种自动防雪装置、光伏发电装置及客车,所述自动防雪装置,安装在光伏电池位置处,其特征在于,包括：安装框架,所述安装框架设置在所述光伏电池的外周；挡雪罩,所述挡雪罩活动安装在所述安装框架上,所述挡雪罩具有展开状态,在所述展开状态,所述挡雪罩整体覆盖在所述光伏电池上；驱动装置,所述驱动装置与所述挡雪罩驱动连接,用于驱动所述挡雪罩展开；降雪传感器,用于检测天气是否降雪；控制装置,所述控制装置分别连接所述驱动装置与所述降雪传感器。本发明的自动防雪装置通过设置降雪传感器,从而实现自动控制,有效防止光伏电池表面积雪过多影响使用,使得光伏板的正常工作不受影响。(The invention discloses an automatic snow protection device, a photovoltaic power generation device and a passenger car, wherein the automatic snow protection device is arranged at the position of a photovoltaic cell and is characterized by comprising the following components: a mounting frame disposed at a periphery of the photovoltaic cell; the snow shield is movably arranged on the mounting frame and has an unfolded state, and the whole snow shield covers the photovoltaic cells in the unfolded state; the driving device is in driving connection with the snow cover and is used for driving the snow cover to be unfolded; the snowfall sensor is used for detecting whether the weather falls or not; and the control device is respectively connected with the driving device and the snowing sensor. The automatic snow-proof device realizes automatic control by arranging the snow falling sensor, effectively prevents excessive accumulated snow on the surface of the photovoltaic cell from influencing the use, and prevents the normal work of the photovoltaic panel from being influenced.)

1. An automatic snow protection device, to be mounted at the location of a photovoltaic cell (100), characterized in that it comprises:

a mounting frame (10), the mounting frame (10) being disposed at an outer periphery of the photovoltaic cell (100);

a snow shield (20), the snow shield (20) being movably mounted on the mounting frame (10), the snow shield (20) having an expanded state in which the snow shield (20) entirely covers the photovoltaic cells (100);

the driving device (40) is in driving connection with the snow shield (20) and is used for driving the snow shield (20) to be unfolded;

a snowfall sensor (50) for detecting whether the weather is snowing;

a control device, which is respectively connected with the driving device (40) and the snowfall sensor (50).

2. The automatic snow protection device according to claim 1,

the mounting frame (10) comprises two guide rails (11) which are oppositely arranged, and a rotating shaft (22) is arranged between the two guide rails (11); the free moving end of the snow cover (20) is movably arranged on the guide rail (11), the fixed end of the snow cover (20) is connected to the rotating shaft (22), and the snow cover (20) is wound on the rotating shaft (22).

3. The automatic snow protection device according to claim 2, characterized in that said mounting frame (10) further comprises:

the two installation bases (23) are oppositely arranged, the installation bases (23) are in one-to-one correspondence with and connected with the guide rails (11), and two ends of the rotating shaft (22) are respectively pivoted on the two installation bases (23);

reset spring (24), reset spring (24) are connected on mount pad (23), reset spring (24) with pivot (22) elastic connection, reset spring (24) are used for pivot (22) atress rotates the back, drive pivot (22) antiport resets.

4. The automatic snow protection device of claim 3, further comprising:

snow removing sword (25), snow removing sword (25) with pivot (22) parallel arrangement, the edge of a knife laminating of snow removing sword (25) is in keep off on snow cover (20), snow removing sword (25) are used for keep off when snow cover (20) shrink, will the snow on the snow cover (20) is clear away.

5. The automatic snow protection device according to claim 3,

the automatic snow protection device further comprises a ratchet wheel (61) and ratchet teeth (62), the ratchet wheel (61) and the ratchet teeth (62) are positioned on the same mounting seat (23), and the ratchet wheel (61) is in driving connection with the rotating shaft (22);

the ratchet (62) has a first position and a second position; in the first position, the ratchet (62) is in limit fit with the ratchet wheel (61) so as to limit the rotating shaft (22) to rotate only in the unfolding direction of the snow cover (20); in the second position, the ratchet teeth (62) are spaced apart from the ratchet wheel (61), and the ratchet wheel (61) is rotatable in both directions.

6. The automatic snow protection device of claim 5, further comprising:

a pressure sensor (71), said pressure sensor (71) being electrically connected to a control device, said pressure sensor (71) being adapted to detect the weight of snow accumulated on said snow shield (20);

the plectrum device (72) is electrically connected with the control device, the plectrum device (72) is connected with the ratchet (62), the ratchet (62) is pivotally connected on the mounting seat (23), and the control device drives the plectrum device (72) to toggle the ratchet (62) between a first position and a second position.

7. The automatic snow protection device according to claim 2, characterized in that said mounting frame (10) further comprises:

supporting seat (12), supporting seat (12) with pivot (22) set up relatively, the both ends of supporting seat (12) are connected with two guide rails (11) respectively, supporting seat (12) pivot (22) and enclose into the installation space who is used for placing photovoltaic cell (100) between guide rail (11), keep off snow cover (20) and will when being located the expansion state installation space is whole to cover and is established including.

8. The automatic snow protection device according to claim 7,

the driving device (40) is arranged on the supporting seat (12), and the driving device (40) is in driving connection with the free moving end of the snow cover (20) through a transmission belt.

9. Photovoltaic power plant characterized in that it comprises an automatic snow protection device according to any one of claims 1 to 8.

10. A passenger vehicle comprising a photovoltaic power generation apparatus according to claim 9.

Technical Field

The invention relates to the technical field of photovoltaic power generation, in particular to an automatic snow protection device, a photovoltaic power generation device and a passenger car.

Background

With the vigorous popularization of new energy vehicles, more and more new energy vehicles are provided with photovoltaic panels on the roofs to compensate energy consumption of a part of vehicles. However, in winter, the photovoltaic panel is covered with thick snow, thereby affecting the operation of the photovoltaic panel. And the snow removal is difficult and dangerous manually.

The photovoltaic board snow removing device that adopts relies on direct current motor to drive the expansion and the shrink of snow protection device at present, and the problem lies in need through artificial controlling means's expansion and shrink, when unmanned, still has the hidden danger of snow, and then influences the normal work of photovoltaic board.

Disclosure of Invention

The invention discloses an automatic snow protection device, a photovoltaic power generation device and a passenger car, and solves the problem that when the existing snow protection device is unmanned, the hidden danger of accumulated snow still exists, and the normal work of a photovoltaic panel is further influenced.

According to one aspect of the present invention, there is disclosed an automatic snow protection device installed at a photovoltaic cell location, comprising: a mounting frame disposed at a periphery of the photovoltaic cell; the snow shield is movably arranged on the mounting frame and has an unfolded state, and the whole snow shield covers the photovoltaic cells in the unfolded state; the driving device is in driving connection with the snow cover and is used for driving the snow cover to be unfolded; the snowfall sensor is used for detecting whether the weather falls or not; and the control device is respectively connected with the driving device and the snowing sensor.

Further, the mounting frame comprises two oppositely arranged guide rails, and a rotating shaft is arranged between the two guide rails; the free moving end of the snow cover is movably arranged on the guide rail, the fixed end of the snow cover is connected to the rotating shaft, and the snow cover is wound on the rotating shaft.

Further, the mounting frame further includes: the two installation seats are oppositely arranged, the installation seats correspond to the guide rails one by one and are connected with the guide rails, and two ends of the rotating shaft are respectively pivoted on the two installation seats; the reset spring is connected to the mounting seat, and is elastically connected with the rotating shaft, and the reset spring is used for driving the rotating shaft to rotate reversely after the rotating shaft is stressed and rotates.

Further, the automatic snow protection device further comprises: the snow removing knife is arranged in parallel with the rotating shaft, the knife edge of the snow removing knife is attached to the snow blocking cover, and the snow removing knife is used for removing snow on the snow blocking cover when the snow blocking cover shrinks.

Furthermore, the automatic snow protection device also comprises a ratchet wheel and a ratchet, the ratchet wheel and the ratchet are positioned on the same mounting seat, and the ratchet wheel is in driving connection with the rotating shaft; the ratchet has a first position and a second position; in the first position, the ratchet is in limit fit with the ratchet wheel so as to limit the rotating shaft to rotate only along the unfolding direction of the snow cover; in the second position, the ratchet teeth are spaced from the ratchet wheel, which is rotatable in both directions.

Further, the automatic snow protection device further comprises: the pressure sensor is electrically connected with the control device and is used for detecting the weight of the accumulated snow on the snow cover; the plectrum device is electrically connected with the control device, the plectrum device is connected with the ratchet, the ratchet is pivotally connected on the mounting seat, and the control device drives the plectrum device to toggle the ratchet between a first position and a second position.

Further, the mounting frame further includes: the supporting seat with the pivot sets up relatively, the both ends of supporting seat are connected with two guide rails respectively, the supporting seat the pivot and enclose into the installation space who is used for placing photovoltaic cell between the guide rail, keep off snow cover will when being located the expansion state installation space is whole to cover including establishing.

Further, the driving device is arranged on the supporting seat and is in driving connection with the free moving end of the snow cover through a driving belt.

According to a second aspect of the invention, a photovoltaic power generation device is disclosed, comprising the automatic snow protection device.

According to a third aspect of the invention, a passenger vehicle is disclosed, comprising the photovoltaic power generation device.

The automatic snow-proof device can detect whether the weather is snowing or not by arranging the snowing sensor, when the snowing sensor melts the snow into water through electric heating, so that a circuit is conducted, the snowing is detected, the control device controls the driving device to drive the snow-blocking cover to be unfolded, and the snow-blocking cover is integrally covered on the photovoltaic cell, so that automatic control is realized, the use is effectively prevented from being influenced by excessive snow on the surface of the photovoltaic cell, and the normal work of the photovoltaic panel is not influenced.

Drawings

FIG. 1 is a schematic structural view of an automatic snow guard according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

FIG. 4 is an enlarged view of a portion C of FIG. 1;

FIG. 5 is a schematic structural view of a snow removing blade of an embodiment of the present invention;

legend: 10. a mounting frame; 11. a guide rail; 12. a supporting seat; 20. a snow cover; 21. a rotating shaft; 22. a rotating shaft; 23. a mounting seat; 24. a return spring; 25. a snow removing knife; 30. a transmission belt; 40. a drive device; 50. a snowfall sensor; 61. a ratchet wheel; 62. a ratchet; 71. a pressure sensor; 72. a shifting device; 100. a photovoltaic cell.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the details of the description.

The invention discloses an automatic snow protection device which is arranged at the position of a photovoltaic cell 100 and is characterized by comprising an installation frame 10, a snow cover 20, a driving device 40, a snow sensor 50 and a control device, wherein the installation frame 10 is arranged at the periphery of the photovoltaic cell 100; the snow-shield 20 is movably mounted on the mounting frame 10, the snow-shield 20 having an unfolded state in which the snow-shield 20 is entirely covered on the photovoltaic cells 100; the driving device 40 is in driving connection with the snow cover 20 and is used for driving the snow cover 20 to unfold; the snowfall sensor 50 is used for detecting whether the weather falls or not; the control device is connected with the driving device 40 and the snowfall sensor 50 respectively. The automatic snow protection device can detect whether the weather is snowing or not by arranging the snow sensor 50, when the snowing occurs, the snow sensor 50 melts the snow into water through electric heating, a circuit is conducted, the snowing is detected, the control device controls the driving device 40 to drive the snow blocking cover 20 to be unfolded, the snow blocking cover 20 is enabled to be integrally covered on the photovoltaic cell 100, the automatic control is achieved, the situation that the use is influenced by too much snow on the surface of the photovoltaic cell is effectively prevented, and the normal work of the photovoltaic panel is not influenced.

In the above embodiment, the mounting frame 10 includes two guide rails 11 oppositely disposed, and a rotating shaft 22 is disposed between the two guide rails 11; the free moving end of the snow guard 20 is movably disposed on the guide rail 11, the fixed end of the snow guard 20 is connected to the rotation shaft 22, and the snow guard 20 is wound around the rotation shaft 22. The automatic snow protection device can enable the snow cover 20 to be unfolded along the guide rails by arranging the two guide rails 11, so that the covering effect of the snow-shielding cloth is better.

In the above embodiment, the mounting frame 10 further includes two mounting seats 23 and a return spring 24, the two mounting seats 23 are oppositely disposed, the mounting seats 23 are connected with the guide rails 11 in a one-to-one correspondence manner, and two ends of the rotating shaft 22 are respectively pivoted on the two mounting seats 23; the return spring 24 is connected to the mounting seat 23, the return spring 24 is elastically connected to the rotating shaft 22, and the return spring 24 is used for driving the rotating shaft 22 to rotate reversely to reset after the rotating shaft 22 rotates under stress. When the snow cover 20 is in an unfolded state, the rotating shaft 22 rotates positively under the action of external force, and the return spring 24 is stressed and compressed; after the external force disappears, the return spring 24 is elastically returned to drive the rotating shaft 22 to rotate reversely, and the snow cover 20 is returned to the contracted state. The automatic snow protection device can automatically contract the snow cover 20 by arranging the return spring, avoids manual contraction, and is more convenient and practical.

In the above embodiment, the automatic snow protection device further includes the snow removing blade 25, the snow removing blade 25 is disposed in parallel with the rotary shaft 22, a blade edge of the snow removing blade 25 is attached to the snow cover 20, and the snow removing blade 25 is configured to remove snow on the snow cover 20 when the snow cover 20 is retracted. The automatic snow-proof device of the invention is provided with the snow removing knife 25, when the snow-blocking cover 20 is contracted, snow on the upper surface of the snow-blocking cover 20 is removed, thereby preventing the device from being damaged due to excessive snow and improving the reliability.

In the above embodiment, the automatic snow protection device further comprises a ratchet wheel 61 and a ratchet 62, the ratchet wheel 61 and the ratchet 62 are located on the same mounting seat 23, and the ratchet wheel 61 is in driving connection with the rotating shaft 22; the ratchet 62 has a first position and a second position; in the first position, the ratchet 62 is in limit fit with the ratchet 61 to limit the rotation of the rotating shaft 22 only along the unfolding direction of the snow cover 20; in the second position, the ratchet 62 is disengaged from the ratchet 61 and the ratchet 61 is capable of bi-directional rotation. The automatic snow protection device of the invention can prevent the snow cover 20 from suddenly shrinking by adopting the structure of the ratchet wheel 61 and the ratchet 62, effectively avoid the shrinkage of the snow cover 20 caused by vibration in the running process of a passenger car, and improve the reliability.

In the above embodiment, the automatic snow protection device further comprises a pressure sensor 71 and a paddle device 72, the pressure sensor 71 is electrically connected with the control device, and the pressure sensor 71 is used for detecting the weight of the snow on the snow cover 20; the paddle means 72 is electrically connected to the control means, the paddle means 72 is connected to the ratchet 62, the ratchet 62 is pivotally connected to the mounting 23, and the control means is operable to toggle the ratchet 62 between the first position and the second position by actuating the paddle means 72. According to the automatic snow protection device, the pressure sensor 71 and the shifting piece device 72 are arranged, so that when the weight of snow on the snow blocking cover 20 reaches a preset value, the shifting piece device 72 is controlled to switch the ratchet 62 to the second position, the snow blocking cover 20 is contracted, and snow can be automatically removed.

In the above embodiment, the mounting frame 10 further includes the supporting seat 12, the supporting seat 12 is disposed opposite to the rotating shaft 22, two ends of the supporting seat 12 are respectively connected to the two guide rails 11, an installation space for placing the photovoltaic cell 100 is defined by the supporting seat 12, the rotating shaft 22 and the guide rails 11, and the snow cover 20 covers the installation space when in the unfolded state. The automatic snow protection apparatus of the present invention can improve the snow-shielding effect by providing the mounting frame 10 so that the snow-shielding cover 20 can be better covered above the photovoltaic cell 100.

In the above embodiment, the drive means 40 is provided on the support base 12, the drive means 40 being drivingly connected to the free moving end of the snow shield 20 by a drive belt.

According to a second aspect of the invention, a photovoltaic power generation device is disclosed, comprising the automatic snow protection device.

According to a third aspect of the invention, a passenger vehicle is disclosed, comprising the photovoltaic power generation device.

When the accumulated snow on the snow shield 20 is excessive, and the pressure of the snow shield 20 exceeds the set value of the pressure sensor 71, at the moment, the pressure sensor 71 receives a signal and simultaneously triggers the shifting piece device 72 to drive the ratchet 62 to loosen the ratchet, the rotating shaft 21 can drive the snow shield 20 to automatically reverse to the contraction state under the influence of the reset spring force, the accumulated snow on the snow shield 20 can be removed by the snow removing knife 25 in the contraction process of the snow shield 20, at the moment, the pressure is released, the pressure sensor enables the shifting piece to drive the ratchet pawl to reset, the snow shield device completes the resetting, and if the snow is still in the snowing weather, the snow sensor controls the servo motor to open the snow shield device again.

The whole process does not need the work of an artificial control device, and also does not need to remove snow artificially, and the device can also automatically work even in a parking state, so that the process is safe, convenient, reliable and high in snow removing efficiency, and meanwhile, the danger of artificial snow removal is also avoided.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.