Solar power generation device for vehicle

Abstract

This solar power generation device for a vehicle is provided on a base bracket on the roof of the vehicle, and is provided with a frame, a chuck member for fixing the frame to the base bracket, a slide rail, and a solar power generation panel. Furthermore, the solar power generation panel has a fixed panel fixed to the frame and located at the uppermost portion, and a movable panel located on the lower side of the fixed panel, a fixed rail of the sliding rail is fixed to the frame, and the movable panel is supported by a movable rail and unfolded / stored, so that the solar power generation panel is fixed to the frame. Thus, it is possible to provide a vehicular solar power generation device capable of increasing the amount of power generated by a solar power generation panel while preventing a decrease in designability.

Description

Technical Field

[0001] The present invention relates to a solar power generation device for a vehicle, and more particularly to a solar power generation device for a vehicle that can be installed on an electric vehicle. Background Art

[0002] Electric vehicles such as EVs and PHVs that can be charged from an external power source are known. These vehicles are provided with a solar power generation panel on the roof or the like, and the power generated by solar power is supplied to a driving battery and an auxiliary battery.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-165948

[0006] Problems to be Solved by the Invention

[0007] However, when the solar power generation panel is only provided on the roof of the vehicle, the power generation amount of the solar power generation panel is limited. In addition, when the solar power generation panel is also provided on the hood and sides of the vehicle, the design of the vehicle is degraded. Summary of the invention

[0008] The present invention has been made in view of the problems of the prior art, and its object is to provide a solar power generation device for a vehicle that can prevent deterioration in design and increase the amount of power generated by the solar power generation panel by simply installing a solar power generation panel on the roof of the vehicle.

[0009] In order to achieve the above-mentioned purpose, the inventors have repeatedly conducted intensive research and found that by providing a movable solar power generation panel that can be unfolded / stored on the basis of a solar power generation panel fixed on the roof of a vehicle, the above-mentioned purpose can be achieved, thereby completing the present invention.

[0010] That is, the solar power generation device of the present invention is a solar power generation device installed on a base bracket on the roof of a vehicle, and comprises: a frame, a clamping member for fixing the frame to the base bracket, a slide rail, and a solar power generation panel.

[0011] Moreover, it is characterized in that the solar power generation panel comprises: a fixed panel fixed on the frame and located at the top, and a movable panel located at the lower side of the fixed panel, the fixed guide rail of the sliding guide rail is fixed on the frame, the movable panel is supported by the movable guide rail of the sliding guide rail, and the movable panel is unfolded / stored.

[0012] Effects of the Invention

[0013] According to the present invention, a fixed solar power generation panel and a movable solar panel supported by a sliding guide rail on the lower side of the solar power generation panel and capable of being unfolded / stored are provided. Therefore, a vehicle solar power generation device can be provided that can prevent reduction in design and increase the power generation of the solar power generation panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram showing an example of a state in which the movable panel of the vehicle solar power generation device of the present invention is accommodated.

[0015] Figure 2 This is a schematic diagram showing an example of a state in which the movable panel of the solar power generation device for a vehicle of the present invention is unfolded.

[0016] Figure 3 This is a schematic diagram showing an example of a solar power generation device for a vehicle having a plurality of movable panels.

[0017] Figure 4 1 is a system configuration diagram of a solar power generation device for a vehicle according to the present invention. DETAILED DESCRIPTION

[0018] The vehicle solar power generation device of the present invention will be described in detail.

[0019] The vehicle solar power generation device of the present invention is a retrofittable vehicle solar power generation device which is installed on a base bracket on the roof of the vehicle and can be directly used without changing the charging system of the vehicle. The device comprises: a frame, a clamping component for fixing the frame to the base bracket, a sliding guide rail, and a solar power generation panel.

[0020] like Figure 1 As shown, the plurality of power generation panels of the solar power generation panel are arranged substantially parallel to each other in the vertical direction, a fixed panel fixed to a frame is arranged at the uppermost part, and a movable panel capable of being unfolded / stored is arranged below the fixed panel.

[0021] The fixed rail of the sliding rail is fixed to the frame, and the movable rail supports the movable panel. The movable panel is expanded / stored by sliding the movable rail.

[0022] like Figure 2 As shown in FIG. 1 , the movable panel protrudes from the fixed panel when unfolded, thereby increasing the panel area when the vehicle is parked and improving the ability to generate electricity using solar energy. Figure 1 As shown, when stored, the movable panel enters under the fixed panel, thereby preventing the air resistance from increasing during driving and in strong winds, and preventing the movable panel from being damaged by wind resistance.

[0023] Furthermore, the solar power generation device for a vehicle of the present invention is mounted on the base bracket of the roof of the vehicle by means of a clamping member, so that it can be easily attached to and detached from the vehicle.

[0024] Therefore, for example, when driving on a highway for a long time, it is easy to remove the battery when it is predicted that the power consumption due to increased air resistance is greater than the power generation using solar energy. In addition, when the parking time becomes long such as camping, it can be easily installed to use the power generated by solar energy.

[0025] like Figure 3 As shown, the movable panel is not limited to one, and a plurality of movable panels may be overlapped and arranged according to the required area of ​​the solar power generation panel.

[0026] The above-mentioned solar power generation device for a vehicle preferably has a frame. By storing the above-mentioned slide rail and the above-mentioned movable panel in the frame, it is possible to prevent wind from entering between the fixed panel and the movable panel when stored, and it is possible to reduce wind noise during driving.

[0027] Furthermore, if the housing is waterproof, it is possible to prevent malfunction of electronic equipment such as a control device described later, and corrosion and contamination of various components such as a slide rail.

[0028] The frame body may be a component different from the frame, or may be a component formed integrally with the frame. In addition, the upper surface of the frame body may also be formed by a fixed panel.

[0029] The movable panel may be deployed toward the front of the vehicle and exposed to the outside of the frame, or may be deployed toward the side of the vehicle and exposed to the outside of the frame.

[0030] When the movable panel is deployed toward the front of the vehicle, it becomes a visor that prevents sunlight from shining into the vehicle through the windshield, which can suppress the temperature rise in the vehicle and reduce the discomfort when entering the vehicle. In addition, when the movable panel is deployed toward the side of the vehicle, it can provide sunshade for the vehicle in the horizontal direction.

[0031] When the movable panel is deployed toward the front of the vehicle, the movable panel is located at a position higher than the driver's sight line and is easily overlooked, so a limiting component is provided on the sliding guide rail so that the front end of the movable panel does not protrude forward from the front end of the vehicle. In this way, the danger of collision between other vehicles and the movable panel during parking can be avoided.

[0032] The slide rail preferably includes a slide lock mechanism and a spring biasing the movable panel in a direction of accommodating the movable panel.

[0033] The slide lock mechanism is a mechanism that prevents the movable panel from being stored in the frame by the spring when the movable panel is unfolded. The movable panel can be easily stored in the frame by the biased spring simply by manually releasing the slide lock mechanism.

[0034] Furthermore, even when an abnormality occurs, the movable panel can be stored in the frame simply by releasing the slide lock mechanism, so that the movable panel can be stored quickly and easily, and dangers in the event of an abnormality can be avoided.

[0035] The above-mentioned solar power generation device for a vehicle may include, in the above-mentioned housing, a storage battery, a solar charger, a power conversion device, an actuator, a charging cable, and a control device for controlling these devices. Figure 4 A system configuration diagram showing a solar power generation device for a vehicle.

[0036] The control device may also operate the actuator provided on the slide rail to expand / store the movable panel. Thus, the movable panel can be automatically expanded / stored according to the situation.

[0037] For example, based on the power generation of the solar power generation panel, the movable panel can be unfolded when power generation is in progress to further increase the power generation, and the movable panel can be stored when power generation is not in progress, such as at night or on rainy days, thereby preventing unexpected failures of the movable panel.

[0038] Furthermore, when the control device detects that the strain of the slide rail exceeds a predetermined value through the strain sensor and the pressure sensor provided on the slide rail, the movable panel is stored to prevent the movable panel from being damaged by strong wind.

[0039] Furthermore, if the slide guide includes the slide lock mechanism and the spring in addition to the actuator, even if the actuator fails, the slide lock mechanism can be released manually or by a control device to retract the movable panel.

[0040] The above-mentioned solar power generation device for a vehicle may include a storage battery in the above-mentioned housing.

[0041] If the vehicle solar power generation device itself has a storage battery, the electric power generated by the solar power generation panel can be stored, and electric power can be supplied even when the solar power generation panel is not generating electricity.

[0042] When the amount of electricity stored in the storage battery exceeds the upper limit of charging, the control device stops supplying the electricity generated by the solar panel to the storage battery. This can prevent the storage battery from malfunctioning due to overcharging. The amount of electricity stored in the storage battery can be known from its voltage value.

[0043] When charging of the storage battery from the solar power generation panel is stopped, the control device preferably operates the actuator to store the movable panel. This can prevent unexpected failure of the movable panel.

[0044] In addition, if Figure 4 As shown, the solar power generation panel and the battery are connected via a solar charger, and the control device controls the output voltage and output current of the solar power generation panel through the solar charger, performs maximum power point tracking control of the solar power generation panel, and controls the charging of the battery by stepping down the voltage to a chargeable voltage.

[0045] The above-mentioned solar power generation device for a vehicle may include a power conversion device in the above-mentioned housing.

[0046] The power conversion device can convert the voltage of the battery into a voltage corresponding to an external power supply target and supply the voltage.

[0047] Examples of the supply voltage include DC48V, DC20V, and DC12V for charging a driving battery or auxiliary battery of an electric vehicle, and AC100V and AC200V for supplying to household electrical appliances for housing.

[0048] The control device preferably stops supplying power to the outside when the amount of power stored in the storage battery is less than a lower discharge limit value, thereby preventing the storage battery from being over-discharged and deteriorating rapidly.

[0049] The above-mentioned solar power generation device for vehicle preferably has a charging cable that can be connected to the charging port of the vehicle. By connecting the solar power generation device for vehicle and the charging port of the vehicle using the charging cable connected to the outside of the vehicle, the power of the battery can be supplied to the driving battery and the auxiliary battery of the vehicle via the power conversion device, thereby extending the cruising range of the vehicle.

[0050] The charging cable can be connected and fixed to the power conversion device, or can be a detachable cable that can be connected to the power conversion device. In addition, the charging cable has a sufficient length to supply not only the vehicle equipped with the above-mentioned vehicle solar power generation device, but also other vehicles.

[0051] Preferably, when the charging cable is connected to a charging port of a vehicle, the control device converts the voltage of the battery and supplies the voltage to the outside when the storage amount of the battery is equal to or greater than a charging start voltage value.

[0052] Then, after the power is supplied to the lower limit of the discharge, the supply to the outside is stopped, and the storage capacity of the battery is restored by the solar power generation panel, and the power supply is restarted when it reaches a charge start voltage or above. In addition, the charge start voltage value is a voltage value lower than the above-mentioned charge upper limit value.

[0053] Therefore, even if the battery power is low and the vehicle's driving battery cannot be charged, as long as the charging cable is connected to the vehicle's charging port, the vehicle's driving battery can be automatically charged when the solar panel generates electricity and the battery power increases.

[0054] Preferably, the control device deploys the movable panel to increase the amount of power generated by the solar power generation panel after the charging cable is connected to the charging port of the vehicle, and retracts the movable panel after the charging cable is removed.

[0055] By deploying / storing the movable panel according to whether the charging cable is connected to the charging port of the vehicle, the movable panel can be automatically deployed / stored without being deployed when the vehicle is parked for a short time.

[0056] The above-mentioned vehicle solar power generation device preferably has a residential socket. By having a residential socket, ordinary home appliances can be used.

[0057] The housing preferably includes a heat sink, so that heat generated by electronic devices such as the power conversion device and the control device can be dissipated to the outside of the housing, thereby preventing the electronic devices from malfunctioning.

[0058] Furthermore, if the heat sink is provided on the lower surface of the housing, the electronic device can be cooled by wind flowing between the housing and the roof of the vehicle, and degradation of the design can be prevented.

[0059] Preferably, the control device includes a storage unit that stores the amount of power generated by the solar power generation panel, the amount of power stored in the storage battery, the amount supplied to the outside, the time when the charging cable is connected to the charging port, and the like over time.

[0060] This makes it possible to predict the power usage pattern of the user of the vehicle solar power generation device, and to deploy the movable panel of the solar power generation panel to increase the amount of power stored in the battery before the amount of power supplied to the outside increases, in preparation for supply to the outside.

[0061] When the charging cable is connected to the charging port of the vehicle, the supply from the battery to the driving battery is terminated before the time when the charging cable is removed from the charging port predicted based on the information stored in the storage unit, that is, before the time when the user is predicted to drive the vehicle.

[0062] The amount of electricity stored in the battery when supply to the driving battery is terminated is the lower limit of discharge. This prevents excess electricity from being stored in the battery while the vehicle is running, thereby extending the cruising distance of the vehicle.

[0063] Furthermore, since solar power generation using the fixed panel is performed while the vehicle is traveling, the amount of electricity stored in the battery is increased, and thus the electricity can be used immediately after arrival.

[0064] The control device preferably includes a communication unit that communicates with an external device such as a smartphone via a mobile phone line, a wireless network (WiFi), or Bluetooth.

[0065] The control device transmits the information stored in the storage unit in response to a request from an external device connected via wireless communication, thereby enabling the user to obtain information such as the amount of power stored in the battery through the external device.

[0066] Furthermore, the external device may instruct the control device to supply power from the battery to the driving battery of the vehicle.

[0067] When the charging cable is connected to the charging port of the vehicle, the control device receives an instruction from the external device and supplies power from the battery to the driving battery of the vehicle.

[0068] Thus, even when using the vehicle in a mode different from the mode of connecting the charging cable to the charging port stored in the storage unit, the power of the battery can be converted to the driving battery before the user drives the vehicle, and the battery storage capacity can be reduced to the lower discharge limit value, thereby extending the vehicle's cruising range.

[0069] Explanation of symbols

[0070] 1: Solar power panels

[0071] 11: Fixed panel

[0072] 12: Movable panel

[0073] 2: Sliding rails

[0074] 21: Fixed rail

[0075] 22: Movable rail

[0076] 23: Spring

[0077] 24: Sliding locking mechanism

[0078] 25: Actuator

[0079] 26: Strain sensor (pressure sensor)

[0080] 3: Frame (frame)

[0081] 4: Clamping parts

[0082] 5: Solar Charger

[0083] 6: Battery

[0084] 7: Power conversion device

[0085] 71: Charging cable

[0086] 72: Residential sockets

[0087] 8: Control device

[0088] 81: Storage

[0089] 82: Ministry of Communications

[0090] 100: Base bracket

[0091] 200: Driving battery

[0092] 210: Charging port

[0093] 300: Home appliances

[0094] 400: External device

Claims

1. A solar power generation device for a vehicle, which is a solar power generation device installed on a base bracket on the roof of a vehicle, characterized in that: The invention comprises: a frame, a clamping member for fixing the frame to the base bracket, a sliding guide rail, and a solar power generation panel. The solar power generation panel comprises: a fixed panel fixed to the frame and located at the uppermost part, and a movable panel located below the fixed panel. The fixed guide rail of the sliding guide rail is fixed to the frame, and the movable panel is supported by the movable guide rail of the sliding guide rail to unfold / store the movable panel.

2. The solar power generation device for a vehicle according to claim 1, characterized in that: At least the sliding guide rail and the movable panel are accommodated in the frame. The movable panel is unfolded toward the front of the vehicle and exposed outside the frame. The limiting member provided on the slide rail prevents the front end of the movable panel from protruding forward from the front end of the vehicle.

3. The solar power generation device for a vehicle according to claim 1, characterized in that: At least the sliding guide rail and the movable panel are accommodated in the frame. The movable panel is deployed toward the side of the vehicle and exposed outside the frame.

4. The vehicle solar power generation device according to claim 1, wherein: At least the sliding guide rail and the movable panel are accommodated in the frame. The slide rail includes a slide lock mechanism and a spring biasing the movable panel in a direction in which the movable panel is housed. The movable panel is housed in the frame by releasing the slide lock mechanism.

5. The vehicle solar power generation device according to claim 1, wherein: At least the sliding guide rail and the movable panel are accommodated in the frame. The frame includes a control device and an actuator. The actuator is arranged on a sliding guide rail. The control device operates the actuator to expand / store the movable panel.

6. The solar power generation device for a vehicle according to claim 5, characterized in that: The control device operates the actuator based on the amount of power generated by the solar power generation panel to thereby expand / store the movable panel.

7. The vehicle solar power generation device according to claim 5, characterized in that: The control device operates the actuator to retract the movable panel when the strain of the slide rail is equal to or greater than a predetermined value.

8. The vehicle solar power generation device according to claim 5, characterized in that: A storage battery is provided in the frame. The power generated by the solar power generation panel is stored in the storage battery.

9. The vehicle solar power generation device according to claim 8, characterized in that: The control device stops charging the storage battery from the solar power generation panel when the storage amount of the storage battery is equal to or greater than an upper charging limit.

10. The vehicle solar power generation device according to claim 9, characterized in that: The control device operates the actuator to store the movable panel when charging of the storage battery from the solar power generation panel is stopped.

11. The vehicle solar power generation device according to claim 9, characterized in that: A power conversion device is provided in the frame. The voltage of the battery is converted and supplied to the outside.

12. The vehicle solar power generation device according to claim 11, wherein: The control device stops supplying power to the outside when the power storage amount of the battery is less than a lower discharge limit value.

13. The vehicle solar power generation device according to claim 12, wherein: A charging cable connected to a charging port of the vehicle is also provided.

14. The vehicle solar power generation device according to claim 12, wherein: When the charging cable is connected to the charging port of the vehicle, The control device converts the voltage of the battery and supplies the voltage to the outside when the storage amount of the battery is equal to or greater than a charge start voltage value.

15. The vehicle solar power generation device according to claim 12, wherein: There are also residential sockets.

16. The vehicle solar power generation device according to claim 12, wherein: The frame body includes a heat sink.

17. The vehicle solar power generation device according to claim 12, wherein: The control device includes a storage unit. The storage unit stores, over time, the amount of power generated by the solar power generation panel, the amount of power stored in the storage battery, the amount supplied to the outside, and the time when the charging cable was connected to the charging port.

18. The vehicle solar power generation device according to claim 17, characterized in that: When the charging cable is connected to the charging port of the vehicle, the control device Based on the pattern of connection of the charging cable to the charging port predicted from the information stored in the storage unit, supply of power from the battery to the driving battery of the vehicle is terminated before a predicted time when the power of the driving battery of the vehicle starts to decrease.

19. The vehicle solar power generation device according to claim 17, wherein: The control device includes a communication unit, The information stored in the storage unit is transmitted to the outside.

20. The vehicle solar power generation device according to claim 19, wherein: When the charging cable is connected to the charging port of the vehicle, the control device Receiving an instruction from an external device, the battery supplies power to a driving battery of the vehicle.

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