Light-shielding member and vehicle equipped therewith

Abstract

The present invention provides a light-shielding member that can increase the mounting area of ​​solar cell modules and improve the power generation capacity of solar cell modules, as well as a vehicle equipped with the same. [Solution] The light-shielding member 10 comprises a light-shielding main body portion 11 formed of a light-shielding material and a bendable solar cell module 12 arranged on the light-incident side of the light-shielding main body portion 11. The light-shielding main body portion 11 is formed to be slidable, retractable, or foldable. The solar cell module 12 is a perovskite solar cell module.

Description

Technical Field

[0001] The present invention relates to a light-shielding member and a vehicle equipped with the same.

Background Art

[0002] In recent years, in order to achieve carbon neutrality, efforts have been made to mount solar cells on vehicles and utilize the electrical energy obtained from the power generation of the solar cells for vehicle driving and the like. For example, Patent Document 1 below discloses a vehicle in which a silicon-based solar cell module is disposed on the roof and bonnet of a vehicle, and a perovskite solar cell module is disposed on the side surface of a door, thereby improving the power generation amount of the solar cell module.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Recently, in order to meet demands such as the promotion of vehicle electrification and an increase in cruising range, it has been required to expand the mounting area of solar cells and improve the power generation amount of solar cells. However, in the vehicle described in Patent Document 1 above, since a relatively hard silicon-based solar cell module is used, the installation location of the solar cell module is limited to the vehicle body such as the bonnet and the side surface of the door, and it is difficult to further improve the power generation amount of the solar cell module.

[0005] The present invention has been made to solve such technical problems, and an object thereof is to provide a light-shielding member capable of expanding the mounting area of a solar cell module and improving the power generation amount of the solar cell module, and a vehicle equipped with the same.

Means for Solving the Problems

[0006] The light-shielding member according to the present invention is a light-shielding member that blocks light, and is characterized by comprising a light-shielding main body made of a light-shielding material and a bendable solar cell module disposed on the light-incident side of the light-shielding main body.

[0007] The light-shielding member according to the present invention includes a flexible solar cell module positioned on the light-incident side of the light-shielding main body. By utilizing the installation location of the light-shielding main body and positioning the solar cell module in that location, it is possible to increase the mounting area of ​​the solar cell module and improve the power generation capacity of the solar cell module. In addition, because the solar cell module is flexible, it can fit the shape of the light-shielding main body while also following changes in the shape of the light-shielding main body. As a result, the placement of the solar cell module has little impact on the use and storage of the light-shielding main body.

[0008] In the light-shielding member according to the present invention, it is preferable that the light-shielding main body is formed to be slidable, retractable, or foldable. This makes it easy to use and store the light-shielding main body, thereby expanding the range of applications of the light-shielding member equipped with the light-shielding main body.

[0009] In the light-shielding member according to the present invention, the solar cell module is preferably a perovskite solar cell module. Since the perovskite solar cell module is thin, light, and flexible, it can suitably fit the shape of the light-shielding body and suitably follow changes in the shape of the light-shielding body. As a result, the arrangement of the solar cell module has little effect on the use and storage of the light-shielding body.

[0010] Furthermore, the vehicle according to the present invention is equipped with the above-mentioned light-shielding member, and the light-shielding member is arranged to cover at least one of the vehicle's window glass and the vehicle's roof glass. In this way, for example, by arranging solar cell modules in the light-shielding body attached to the vehicle in addition to the conventional solar cell modules arranged on the vehicle body, the vehicle-mounted area of ​​the solar cell modules can be increased and the power generation amount of the vehicle-mounted solar cell modules can be improved. As a result, an increase in the vehicle's driving range can be expected. [Effects of the Invention]

[0011] According to the present invention, the mounting area of ​​the solar cell module can be increased, and the power generation capacity of the solar cell module can be improved. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic cross-sectional view showing a light-shielding member according to an embodiment. [Figure 2] This is a perspective view showing a vehicle equipped with a light-blocking component on the panoramic roof. [Figure 3] This is a schematic diagram showing a vehicle equipped with a light-shielding component on the windshield. [Figure 4] This is a schematic diagram showing a vehicle equipped with a light-blocking component as a front sun visor. [Figure 5] This is a perspective view showing a vehicle equipped with light-shielding components positioned on the side windows. [Modes for carrying out the invention]

[0013] Hereinafter, embodiments of the light-shielding member and a vehicle equipped therewith according to the present invention will be described with reference to the drawings.

[0014] [Regarding light-shielding materials] Figure 1 is a schematic cross-sectional view showing a light-shielding member according to an embodiment. The light-shielding member 10 of this embodiment is arranged, for example, on the window or roof of a vehicle, and is a member that generates electricity using sunlight while suppressing the rise in interior temperature due to the incidence of light such as sunlight by covering the window glass or roof glass. As shown in Figure 1, the light-shielding member 10 is formed in the shape of a thin plate and comprises a light-shielding main body 11 and a solar cell module 12 arranged on the light-incident side of the light-shielding main body 11. In this embodiment, "light-incident side" means the side on which sunlight is incident.

[0015] The light-shielding main body 11 prevents sunlight from entering through glass or the like, and is formed of a light-shielding material. Any light-shielding material can be used for the light-shielding main body 11, and examples include resin materials such as polyvinyl chloride, polypropylene, and polyurethane, metal materials such as aluminum, woven fabrics, nonwoven fabrics, etc.

[0016] Furthermore, the light-shielding body 11 has a certain degree of flexibility and is formed to be slidable, retractable, or foldable. If it is slidable, the light-shielding body 11 is formed, for example, in the form of a thin plate with a certain degree of rigidity and is capable of reciprocating movement along a certain direction. When in use, the light-shielding body 11 is pulled out by sliding, and when storing, the light-shielding body 11 is returned to its original position by sliding.

[0017] If retractable, the light-blocking main body 11 is wound into a roll, for example, around a core. When in use, the light-blocking main body 11 is unwound from the roll, and when stored, the light-blocking main body 11 is wound into a roll. If foldable, the light-blocking main body 11 is formed into a strip or accordion shape, for example. When in use, the light-blocking main body 11 is extended (in other words, spread out), and when stored, it is folded.

[0018] This makes it easy to use and store the light-shielding main body 11, thereby expanding the range of applications for the light-shielding member 10 equipped with the light-shielding main body 11.

[0019] On one hand, the solar cell module 12 is a bendable solar cell module disposed on the light incident side of the light shielding main body 11. That is, the solar cell module 12 is required to have a property that it can fit the shape of the light shielding main body 11 and follow the shape change of the light shielding main body 11. Examples of such a solar cell module 12 include so-called flexible solar cells, such as organic systems like perovskite solar cell modules, and compound systems like CIS (Copper Indium Selenide) solar cell modules and CIGS (Copper Indium Gallium Selenide) solar cell modules.

[0020] In this embodiment, the solar cell module 12 is a perovskite solar cell module. As the perovskite solar cell module, a known one can be used. For example, it is composed of a transparent substrate, a transparent electrode layer (such as ITO (Indium Tin Oxide)) laminated in sequence on the substrate, a functional layer (such as a hole transport layer, a photoelectric conversion layer, and an electron transport layer), and a back electrode layer (such as an Au electrode). The solar cell module 12 configured in this way is disposed over a partial region or the entire region of the surface (light incident surface) on the light incident side of the light shielding main body 11 and is fixed to the light incident surface by adhesion or the like.

[0021] Note that the solar cell module 12 is preferably disposed removably on the light shielding main body 11. In this way, if a problem or the like occurs in the solar cell module 12, the solar cell module 12 can be easily replaced.

[0022] As described above, the light-shielding member 10 includes a flexible solar cell module 12 positioned on the light-incident side of the light-shielding main body 11. By utilizing the installation location of the light-shielding main body 11 and positioning the solar cell module 12 in that location, the mounting area of ​​the solar cell module 12 can be increased, thereby improving the power generation capacity of the solar cell module 12. In addition, since the solar cell module 12 is a thin, lightweight, and flexible perovskite solar cell module, it can suitably fit the shape of the light-shielding main body 11 while suitably following changes in the shape of the light-shielding main body 11. As a result, the placement of the solar cell module 12 has little impact on the use and storage of the light-shielding main body 11.

[0023] [Regarding vehicles equipped with light-shielding components] Hereinafter, an embodiment of a vehicle equipped with the above-described light-shielding member 10 will be described with reference to Figures 2 to 5. The vehicle referred to in the following embodiment includes automobiles such as passenger cars, buses, and trucks, as well as trains, but here we will use an example of a passenger car. In the following description, the up and down, left and right, front and back directions and positions are based on the direction as seen from the driver of the vehicle.

[0024] Figure 2 is a perspective view showing a vehicle equipped with a light-blocking member on a panoramic roof. In recent years, a panoramic roof 2 is often used as equipment for vehicle 1. The panoramic roof 2 makes the ceiling of vehicle 1 out of glass, creating a space where users can feel open even while inside the vehicle. However, while the panoramic roof 2 provides a sense of openness, it also lets sunlight into the vehicle, which can easily lead to an increase in the interior temperature. In the example shown in Figure 2, a light-blocking member 10 is placed on the panoramic roof 2, and when a sense of openness is not needed, the light-blocking member 10 is used to cover the glass of the panoramic roof 2, preventing sunlight from entering while generating electricity using sunlight.

[0025] As shown in Figure 2, the light-shielding member 10 is installed on the inside (i.e., the interior side of the vehicle) of the panoramic roof 2 so that the solar cell module 12 faces outwards from the vehicle. The light-shielding member 10 is formed in the shape of a thin plate so as to cover the entire area of ​​the glass of the panoramic roof 2 and is configured to slide along the front-rear direction of the vehicle 1 (see arrow in Figure 2). The sliding operation of the light-shielding member 10 can be performed manually or automatically (electrically), but here it is performed automatically by operating the switch device 3 located on the ceiling.

[0026] When the sliding operation of the light-shielding member 10 is performed automatically, the vehicle 1 further includes a guide rail for guiding the sliding of the light-shielding member 10, a drive member and drive motor for moving the light-shielding member 10 back and forth along the guide rail. Although not shown, the guide rail, drive member and drive motor are, for example, built into the ceiling of the vehicle 1. The ON / OFF operation of the drive motor is performed via the switch device 3 described above.

[0027] By arranging the light-shielding member 10 on the panoramic roof 2 in this way, for example, when there is no need for a sense of openness, the glass of the panoramic roof 2 can be covered with the light-shielding member 10, and solar radiation can be prevented using the light-shielding main body 11 while generating electricity using the solar cell module 12. Therefore, the rise in interior temperature due to solar radiation can be suppressed, and the amount of power generated by the solar cell module 12 can be improved.

[0028] In the example shown in Figure 2, the light-shielding member 10 may be formed in a sheet shape to cover the entire area of ​​the glass of the panoramic roof 2 and may be configured to be rollable along the front-rear direction of the vehicle 1.

[0029] Figure 3 is a schematic diagram showing a vehicle equipped with a light-shielding member positioned on the windshield. As shown in Figure 3, the light-shielding member 10 is installed on the inside (i.e., the interior side) of the windshield 4 as a sunshade, so that the solar cell module 12 faces outwards from the vehicle 1. This light-shielding member 10 is formed in a sheet shape, for example, to cover the entire area of ​​the windshield 4, and is designed to be rolled up along the left-right direction of the vehicle 1.

[0030] The light-shielding member 10 is stored in a storage case, for example, in a rolled-up state. Although not shown in the figure, the storage case is, for example, a long, narrow box shape and is attached to the inside of one of the pair of front pillars 5. The light-shielding member 10 stored in the storage case can be taken in and out of the storage case manually or automatically (electrically).

[0031] Furthermore, if the light-shielding member 10 can be automatically taken in and out of the storage case, the vehicle 1 further includes a pair of upper and lower guide wires installed between a pair of left and right front pillars 5 on both the upper and lower sides of the windshield 4, a drive member and drive motor for moving the light-shielding member 10 back and forth along the guide wires, and a winding shaft located in the storage case for winding up the light-shielding member 10 as the drive motor rotates.

[0032] By placing the light-shielding member 10 on the windshield 4 in this manner, for example, when the vehicle is stopped, the windshield 4 can be covered with the light-shielding member 10, and solar radiation can be prevented using the light-shielding main body 11 while generating electricity using the solar cell module 12. Therefore, the rise in interior temperature due to solar radiation can be suppressed, and the amount of power generated by the solar cell module 12 can be improved.

[0033] Figure 4 is a schematic diagram showing a vehicle equipped with a sunshade as a front sun visor. As shown in Figure 4, the sun visors positioned above the driver's seat and passenger seat of the vehicle 1 are composed of sunshade members 10. Each sunshade member 10 is attached to the ceiling of the vehicle 1 and is configured to be openable and foldable (in other words, foldable) between a usage position that covers a portion of the windshield 4 (see the dashed-dot line in Figure 4) and a storage position that overlaps with the ceiling of the vehicle 1.

[0034] In the light-shielding member 10, the light-shielding main body 11 is made of a relatively hard resin material (for example, polyurethane) to facilitate manual operation by the user. The solar cell module 12 is fitted into the light-shielding main body 11 so that it faces outwards from the vehicle 1 when the light-shielding member 10 is in use.

[0035] By providing the sun shading member 10 as a front sun visor, for example, when a car user wants to reduce the glare of sunlight, they can manually position the sun shading member 10 in its desired location, allowing the solar cell module 12 to continue receiving sunlight through the windshield 4 and generate electricity.

[0036] Figure 5 is a perspective view showing a vehicle equipped with a light-blocking member on the side window. As shown in Figure 5, a curtain made of a light-blocking member 10 is installed on the side window 6 located near the rear seat of the vehicle 1. That is, the light-blocking member 10 is a curtain-type sunshade. This light-blocking member 10 is formed to cover, for example, the entire area of ​​the glass of the side window 6.

[0037] The light-shielding member 10 is installed on the inside of the side window 6 (i.e., on the interior side of the vehicle) so that the solar cell module 12 faces outwards from the vehicle. The light-shielding member 10 is formed to be retractable along the vertical direction of the vehicle 1.

[0038] The light-shielding member 10 is stored in a storage case, for example, in a rolled-up state. Although not shown in the figure, the storage case is, for example, a long, narrow box shape and is built into a vehicle panel located below the side window 6. The light-shielding member 10 stored in the storage case can be taken in and out of the storage case manually or automatically.

[0039] In the example shown in Figure 5, the light-shielding member 10 can be manually taken in and out of its storage case. In this case, the user can pull out the light-shielding member 10 stored in the storage case by holding the hook 7 provided on the upper end of the light-shielding member 10 and pulling it. Furthermore, the user can cover the side window 6 with the light-shielding member 10 by hooking the hook 7 onto the hook portion 8 provided on the upper window frame of the side window 6. When the glass of the side window 6 is covered with the light-shielding member 10, the solar cell module 12 continues to receive sunlight through the side window 6, and is able to generate electricity.

[0040] Furthermore, if the light-shielding member 10 can be automatically taken in and out of the storage case, the vehicle 1 further includes a pair of left and right guide wires installed between the upper and lower window frames of the side window 6 on both the left and right sides of the side window 6, a drive member and drive motor for moving the light-shielding member 10 back and forth along the guide wires, and a winding shaft located in the storage case for winding up the light-shielding member 10 as the drive motor rotates.

[0041] The vehicle 1 of this embodiment, by being equipped with the above-described light-shielding members 10, can, for example, in addition to the solar cell modules arranged on the conventional vehicle body, utilize the installation location of the light-shielding main body 11 and arrange solar cell modules 12 at that location, thereby increasing the vehicle-mounted area of ​​the solar cell modules 12 and improving the power generation capacity of the vehicle-mounted solar cell modules.

[0042] The electrical energy generated by the solar cell module 12 of the light-shielding member 10 is supplied to auxiliary equipment such as a digital rearview mirror or a drive recorder, or to an auxiliary battery, which are driven at low voltage. In recent years, with the electrification of automobiles, the number of auxiliary equipment has increased. As a result, the power consumption of auxiliary equipment has increased, and the load on the auxiliary battery has also increased. In response to this, in this embodiment, the electrical energy generated by the solar cell module 12 is supplied directly to the auxiliary equipment or to the auxiliary battery for charging, thereby covering the power consumption of the auxiliary equipment and contributing to reducing the load on the auxiliary battery. As a result, an increase in the driving range of the vehicle 1 can be expected.

[0043] Vehicle 1 may be equipped with all of the light-shielding members 10 shown in Figures 2 to 5, or it may be equipped with at least one of these light-shielding members 10.

[0044] Although embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various design modifications can be made without departing from the spirit of the invention as described in the claims. [Explanation of Symbols]

[0045] 1: Vehicle, 2: Panoramic roof, 3: Switch device, 4: Windshield, 5: Front pillar, 6: Side window, 7: Hook, 8: Hooking part, 10: Light-shielding material, 11: Light-shielding main body, 12: Solar cell module

Claims

1. A light-blocking member that blocks light, A light-shielding main body made of light-shielding material, A flexible solar cell module is positioned on the light-incident side of the light-shielding main body, A light-shielding member characterized by comprising the following:

2. The light-shielding body portion is formed to be slidable, retractable, or foldable, as described in claim 1.

3. The light-shielding member according to claim 1, wherein the solar cell module is a perovskite solar cell module.

4. The light-shielding member is provided according to any one of claims 1 to 3, The light-shielding member is arranged to cover at least one of the vehicle's window glass and the vehicle's roof glass.

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