Solar car roof charger

Abstract

The utility model discloses a solar car roof charger, which belongs to the technical field of vehicle-mounted solar energy and comprises a containing box, the containing box comprises a box body used for being installed on a car roof and a box cover used for sealing a box opening of the box body, the box opening is located at the top of the box body, the box cover is hinged to the box body, and a fixed solar cell panel is arranged on the outer top face of the box cover. A junction box and a folding solar cell panel capable of being unfolded outwards are installed in the box body, the junction box is provided with an input interface and an output interface used for being connected with an electric vehicle charging connector, and the input interface is electrically connected with the output end of the fixed solar cell panel and the output end of the folding solar cell panel. The foldable solar cell panel is unfolded and acts together with the fixed solar cell, so that the overall area of the solar cell panel can be obviously increased, the limitation of the space size of the roof is broken through, and the charging efficiency is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted solar energy, in particular to a solar roof charger. Background Art

[0002] Electric vehicles need to be charged after use. Vehicles are usually parked in parking spaces all day and cannot use charging stations. If electric vehicles are not charged, their range will be limited. Solar chargers can well solve the problem of charging electric vehicles in an uncharged environment. The current practice is usually to place solar chargers on the roof, but the space on the roof is limited and can only accommodate a small solar panel, resulting in insufficient charging efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems and provide a solar roof charger, which can significantly increase the overall area of ​​the solar panel by unfolding the foldable solar panel and working together with the fixed solar cell, breaking through the limitation of the size of the roof space and significantly improving the charging efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model discloses a solar roof charger, comprising a storage box, the storage box comprising a box body for installation on the roof and a box cover for closing the box opening of the box body, the box opening is located at the top of the box body, the box cover is hinged to the box body, the outer top surface of the box cover is provided with a fixed solar panel, a junction box and a foldable solar panel that can be unfolded outward are installed in the box body, the junction box has an input interface and an output interface for connecting to an electric vehicle charging connector, the input interface is electrically connected to the output end of the fixed solar panel and the output end of the foldable solar panel.

[0005] Preferably, two foldable solar panels are included, and the two foldable solar panels are respectively arranged at one end of the box opening close to the front of the vehicle and the other end close to the rear of the vehicle. The folding direction and the unfolding direction of the foldable solar panel are arranged along the length direction of the vehicle body. The width and unfolding length of the foldable solar panel close to the front end can at least cover the front windshield, and the width and unfolding length of the foldable solar panel close to the rear end can at least cover the rear windshield.

[0006] Preferably, the foldable solar panel comprises a carrier plate and a solar unit plate, the carrier plate comprises a supporting area and a spacing area for folding as a crease, the spacing area is located between two adjacent supporting areas, and the solar unit plates are arranged in a matrix in the supporting area.

[0007] Preferably, a hard lining layer is provided in the supporting area.

[0008] Preferably, the foldable solar cell panel further comprises two buffer regions having a flexible lining layer, one of the buffer regions is connected to the supporting region at the head end via a spacing region, and the other buffer region is connected to the supporting region at the tail end via a spacing region.

[0009] Preferably, the containing box is provided with a lock for locking the box cover and the box body.

[0010] Preferably, a piston rod is provided in the box body, the cylinder of the piston rod is hinged to the bottom wall of the box body, and the rod body of the piston rod is hinged to the inner top surface of the box cover.

[0011] Preferably, the box cover and the box body are hingedly connected via a shock-absorbing hinge.

[0012] Preferably, a power electronic device is connected between the output interface and the electric vehicle charging connector.

[0013] Preferably, a power converter is connected between the electric vehicle charging connector and the electric vehicle charging connector.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] In the solar roof charger of the utility model, a fixed solar panel is provided on the cover of the storage box, and a foldable solar panel is provided inside the storage box. When the electric vehicle needs to be charged, the foldable solar panel is unfolded and works together with the fixed solar cell, which can significantly increase the overall area of ​​the solar panel, break through the limitation of the size of the roof space, and significantly improve the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the solar roof charger (after the solar panel is expanded);

[0018] Figure 2 It is a front view structural diagram of a solar roof charger (after the solar panel is expanded);

[0019] Figure 3 The schematic diagram of the top view of the solar roof charger (after the solar panel is expanded);

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the solar roof charger (after the solar panel is stored);

[0021] Figure 5 The schematic diagram of the top view of the solar roof charger (after the solar panel is stored);

[0022] Figure 6 This is a schematic diagram of the front view of the solar roof charger (after the solar panel is stored);

[0023] Figure 7 This is a schematic diagram of the structure of the solar roof charger (after the storage box is opened);

[0024] Figure 8 This is a schematic diagram of the structure of the solar roof charger (after the storage box is opened);

[0025] Fig. 9 It is a schematic diagram of the structure of a foldable solar panel;

[0026] Fig.10 A diagram of the folding process of a foldable solar panel.

[0027] Explanation of the accompanying drawings: 1. Storage box; 2. Fixed solar panel; 3. Folding solar panel; 4. Input interface; 5. Output interface; 6. Lock; 7. Piston rod; 8. Solar unit panel; 9. Support area; 10. Spacing area; 11. Buffer area. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] This embodiment provides a solar roof charger, such as Figures 1 to 10As shown, it includes a containing box 1, and the containing box 1 includes a box body and a box cover. The box opening of the box body is located at the top of the box body, and the box cover is hinged to the box body to close the box opening. The box body is used to be installed on the roof, and the box opening needs to be set upward. A fixed solar panel 2 is provided on the outer top surface of the box cover, and a junction box and a foldable solar panel 3 are installed in the box body. The foldable solar panel 3 can be folded inside the box body, or unfolded outward and laid on the car body to increase the light receiving area. The junction box has an input interface 4 and an output interface 5. The input interface 4 is electrically connected to the output end of the fixed solar panel 2 and the output end of the foldable solar panel 3, and the output interface 5 is used to connect the electric vehicle charging connector.

[0030] Working principle:

[0031] First, the solar roof charger needs to be pre-installed on the roof, and can be installed on the roof luggage rack through the connector; then, when the electric car needs to be charged, park the car, open the lid of the storage box 1, and then unfold the foldable solar panel 3 outward, and close the lid after completion. At this time, the fixed solar panel 2 on the lid and the unfolded foldable solar panel 3 will be illuminated together, and then the light energy will be converted into electrical energy. The input end of the electric vehicle charging connector is connected to the output interface 5, and the output end of the electric vehicle charging connector is connected to the charging port of the electric vehicle, and then the electric vehicle can be charged; finally, after charging is completed, unplug the input end and output end of the electric vehicle charging connector, open the lid, fold the foldable solar panel 3 back into the box, and then close the lid to complete the charging. Of course, the electric vehicle charging connector can also be pre-connected to the output interface 5, and then placed in the storage box 1, taken out directly when in use, and put back into the storage box 1 when not in use.

[0032] It may be troublesome to use grid power and public chargers to charge electric vehicles. As long as the solar roof charger is installed on the roof, the foldable solar panel 3 is unfolded, and the electric vehicle charging connector is inserted into the standard charging port, the vehicle can be charged. The unfolded foldable solar panel 3 and the fixed solar panel 2 work together to increase the overall area of ​​the solar panel, breaking through the limitation of the size of the roof space and significantly improving the charging efficiency. Of course, in addition to charging electric vehicles, it can also provide power to run electrical appliances or provide emergency power.

[0033] In this embodiment, Figures 1 to 10As shown, the junction box can be installed inside the box cover, and the input interface 4 and the output interface 5 are located on the inner top surface of the box cover. In addition, the junction box can also have a USB interface to output low-voltage direct current, such as 5V DC voltage, to mobile phones, tablets, fans, heaters, lights and other electrical appliances. Of course, the above voltage values ​​are only reference values ​​and can be set according to actual needs. The junction box can also have a 12V DC interface for other functions. According to different actual needs, technicians in this field can choose to set the corresponding interface type on the junction box. When only outputting electrical energy through the USB interface, the foldable solar panel 3 does not need to be unfolded, and only the fixed solar panel 2 can be used.

[0034] In this embodiment, Figures 1 to 10 As shown, it includes two foldable solar panels 3, and the two foldable solar panels 3 are respectively arranged at one end of the box opening close to the front of the vehicle and the other end close to the rear of the vehicle. The folding direction and the unfolding direction of the foldable solar panel 3 are arranged along the length direction of the vehicle body. The width and the unfolded length of the foldable solar panel 3 close to the front end of the vehicle can at least cover the front windshield, that is, its width is equal to or greater than the length of the front windshield (the dimension perpendicular to the length of the vehicle body), and the unfolded length is equal to or greater than the width of the front windshield (the dimension along the length of the vehicle body). Preferably, the unfolded length of the foldable solar panel 3 can cover the front of the vehicle. The width and the unfolded length of the foldable solar panel 3 close to the rear end of the vehicle can at least cover the rear windshield, that is, its width is equal to or greater than the length of the rear windshield (the dimension perpendicular to the length of the vehicle body), and the unfolded length is equal to or greater than the width of the rear windshield (the dimension along the length of the vehicle body). Preferably, the unfolded length of the foldable solar panel 3 can cover the rear of the vehicle. The unfolding and folding direction is arranged along the length direction of the vehicle body, firstly to ensure that the foldable solar cell panel 3 has a sufficiently large extension space, and secondly to cover the front and rear windshields to reduce the sunlight shining on the interior of the vehicle, thereby achieving a sunshade effect, which can effectively reduce the heat generation inside the parked vehicle and ensure the comfort of the driver and passengers.

[0035] In this embodiment, Figures 1 to 10 As shown, the foldable solar panel 3 includes a carrier plate and a solar unit panel 8. The carrier plate includes a supporting area 9 and a spacing area 10, wherein the spacing area 10 is located between two adjacent supporting areas 9, and the spacing area 10 is folded as a fold between two adjacent supporting areas 9, and the solar unit panels 8 are arranged in a matrix in the supporting area 9.

[0036] Further, in this embodiment, if Figures 1 to 10 As shown, a hard lining layer is provided in the supporting area 9. The hard lining layer can be a hard cardboard, hard plastic, etc., to support the solar cell panel 8.

[0037] In this embodiment, Figures 1 to 10 As shown, the foldable solar panel 3 further includes two buffer areas 11. One buffer area 11 is connected to the supporting area 9 at the head end through the spacing area 10, and the other buffer area 11 is connected to the supporting area 9 at the tail end through the spacing area 10. The buffer area 11 has a flexible lining layer to protect the solar cell panel 8 after the foldable solar panel 3 is folded. The flexible lining layer can be a type of cloth, bubble packaging material, etc.

[0038] It should be noted that, in this embodiment, the supporting area 9 at least has a supporting function, and the buffering area 11 at least has a buffering function. That is, the supporting area 9 may have a flexible lining layer in addition to a hard lining layer, and the buffering area 11 may have a hard lining layer in addition to a flexible lining layer.

[0039] In this embodiment, Figures 1 to 10 As shown, the storage box 1 is provided with a lock 6, which is used to lock the box cover and the box body. The lock 6 can be a button lock, which can be opened by pressing one button, and the button will automatically pop up when it is buckled. The lock 6 can also be a lock with a keyhole, which can only be opened with a key to play an anti-theft role. The lock 6 can also be an electronic lock, which can be unlocked by remote control, fingerprint unlocking, facial unlocking, sound wave unlocking, iris unlocking or password unlocking, etc.

[0040] In this embodiment, Figures 1 to 10 As shown, a piston rod 7 is provided in the box body, the cylinder of the piston rod 7 is hinged to the bottom wall of the box body, and the rod body of the piston rod 7 is hinged to the inner top surface of the box cover, which is used to assist the opening, support, buffering, and shock absorption of the box cover.

[0041] Further, in this embodiment, Figures 1 to 10 As shown, the box cover and the box body are hinged by shock-absorbing hinges, which effectively reduces vibration.

[0042] In this embodiment, Figures 1 to 10 As shown, a power electronic device is connected between the output interface 5 and the electric vehicle charging connector. A power electronic device (power electronic equipment) is a device composed of various power electronic circuits and is used for the conversion and control of high-power electric energy.

[0043] In this embodiment, Figures 1 to 10 As shown, a power converter is connected between the electric vehicle charging connector and the electric vehicle charging connector, and the power converter can make the voltage output correct and stable.

[0044] In this embodiment, Figures 1 to 10 As shown, the overall shape of the container 1 is streamlined, which can effectively reduce resistance, minimize efficiency loss, and meet the requirements of aerodynamics.

[0045] In this embodiment, Figures 1 to 10 As shown, the electric vehicle charging connector can use a SAEJ3400 connector and be equipped with a six-foot-long NACS charging cable. Of course, the above are all for reference and do not mean that only this type of connector and this type of charging cable, as well as a charging cable of this size and length can be used. You can choose according to the specific situation.

[0046] In this embodiment, Figures 1 to 10 As shown, the solar roof charger weighs 90 pounds as a whole, and the container 1 is a 4x4-foot box as a whole. When the foldable solar panel 3 is fully unfolded, its length can exceed 15 feet. Normally, the foldable solar panel 3 is not unfolded, and only the fixed solar panel 2 is used. The fixed solar panel 2 is 46.75 inches long x 48 inches wide, and the solar output is: 200 watts, 25-40V. If the foldable solar panel 3 is fully unfolded, the overall length is 245 inches long x 48 inches wide, and the solar output is: 1200 watts, 80-120V. Of course, the above are all for reference, and it does not mean that only the above parameters can be used. You can choose according to the specific situation.

[0047] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A solar roof charger, characterized in that: The storage box comprises a box body for installation on a roof and a box cover for closing a box opening of the box body, wherein the box opening is located at the top of the box body, the box cover is hinged to the box body, a fixed solar panel is arranged on the outer top surface of the box cover, a junction box and a foldable solar panel that can be unfolded outward are installed in the box body, the junction box has an input interface and an output interface for connecting to a charging connector of an electric vehicle, and the input interface is electrically connected to the output end of the fixed solar panel and the output end of the foldable solar panel.

2. A solar roof charger according to claim 1, characterized in that: The invention comprises two foldable solar panels, which are respectively arranged at one end of the box opening close to the front of the vehicle and the other end close to the rear of the vehicle. The folding direction and the unfolding direction of the foldable solar panel are arranged along the length direction of the vehicle body. The width and unfolding length of the foldable solar panel close to the front of the vehicle can at least cover the front windshield, and the width and unfolding length of the foldable solar panel close to the rear of the vehicle can at least cover the rear windshield.

3. A solar roof charger according to claim 2, characterized in that: The foldable solar cell panel comprises a carrier plate and a solar cell panel, wherein the carrier plate comprises a supporting area and a spacing area for folding as a crease, wherein the spacing area is located between two adjacent supporting areas, and the solar cell panels are arranged in a matrix in the supporting area.

4. A solar roof charger according to claim 3, characterized in that: A hard lining layer is provided in the supporting area.

5. A solar roof charger according to claim 4, characterized in that: The foldable solar cell panel also includes two buffer areas with flexible lining layers, one of the buffer areas is connected to the supporting area at the head end through a spacing area, and the other buffer area is connected to the supporting area at the tail end through a spacing area.

6. A solar roof charger according to claim 1, characterized in that: The containing box is provided with a lock for locking the box cover and the box body.

7. A solar roof charger according to claim 6, characterized in that: A piston rod is arranged in the box body, a cylinder of the piston rod is hinged to the bottom wall of the box body, and a rod body of the piston rod is hinged to the inner top surface of the box cover.

8. A solar roof charger according to claim 7, characterized in that: The box cover and the box body are hinged via a shock-absorbing hinge.

9. A solar roof charger according to claim 1, characterized in that: A power electronic device is connected between the output interface and the electric vehicle charging connector.

10. A solar roof charger according to claim 9, characterized in that: A power converter is connected between the electric vehicle charging connector and the electric vehicle charging connector.

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