CN201071671Y - Flexible solar cell curtain - Google Patents

Abstract

The utility model relates to a flexible solar cell curtain, which belongs to the cross-technical field of civil home decoration and solar energy utilization. The curtain includes an upper rail cover, a mounting bracket installed on the upper rail cover, a wheel device, an upper rail, a direction indicator, a steering device, an adjustment rod, an adjustment rod handle, a lifting rope, a pull rope and a pull rope handle, and a curtain connected by a lifting rope; it is characterized in that it also includes a rechargeable battery and a charging control circuit board, an indicator light, and a switch installed on the upper rail cover, and a flexible solar cell is laid on the outer side of the curtain to form a solar cell curtain. The utility model enables the curtain to not only have the functions of sunshade and decoration, but also use solar energy for power generation and lighting, and has the advantages of simple structure, easy manufacture and installation, and long service life.

Description

Flexible Solar Cell Curtains

technical field

The utility model belongs to the cross-technical field of civil home decoration and solar energy utilization, in particular to a curtain structure designed with flexible solar cells.

Background technique

The current curtains only have the function of sunshade and decoration. Recently, with the improvement of living standards, people have made many improvements to blinds and curtains, and invented many new curtain materials, new shutter mechanisms and new hollow glass with multiple functions. Windows, but common blinds are only common, and they cannot play the role of utilizing solar power and lighting.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art, and to design a flexible solar battery curtain. The flexible solar battery array and rechargeable batteries are applied to the blinds and curtains, so that the curtains not only have the functions of sunshade and decoration, but also The solar energy is used for power generation and lighting, and has the advantages of simple structure, easy manufacture and installation, long service life and the like.

The flexible solar battery curtain designed by the utility model includes an upper rail cover, a mounting bracket installed on the upper rail cover, a runner device, an upper rail, an orientation device, a steering device, an adjustment rod, an adjustment rod handle, a lifting rope, and a pull cord and a drawstring handle, a curtain connected with a lifting rope; it is characterized in that it also includes a rechargeable battery and its charging control circuit board, indicator light, and switch installed on the described upper rail cover, and is laid on the outside of the described curtain There are flexible solar cells that form solar cell curtains.

Features and effects of the utility model:

With the increasing shortage of energy sources, the use of solar energy is gradually being valued by the society. The utility model applies flexible solar cell arrays and rechargeable batteries to blinds and curtains, so that the curtains have new functions and realize a new way of household solar energy application. The curtains not only have the function of sunshade and decoration, but also use solar energy for power generation and lighting. Since it is installed indoors, there is glass shielding and protection, and it will not be exposed to wind and rain, so the life of the invention is compared with that of outdoor solar devices. Relatively long, in addition, the invention is not easy to be stolen, can be disassembled and installed repeatedly, and is easy to protect the investment of investors. And it has the advantages of simple structure, easy manufacture and installation, long service life and the like.

Description of drawings

Fig. 1 is a structural schematic diagram of Embodiment 1 of a solar cell venetian blind with picture lighting function of the present invention.

FIG. 2 is a structural schematic diagram of the lifting rope of Embodiment 1. FIG.

Fig. 3 is a structural schematic diagram of embodiment 2 of the flexible solar cell roller blind of the present invention.

Fig. 4 is a schematic structural diagram of a fixed shaft with a brush in Embodiment 2.

FIG. 5 is a schematic structural diagram of the charging control circuit of Embodiment 1. FIG.

Detailed ways

The flexible solar cell curtain designed by the utility model is described in detail as follows in conjunction with the accompanying drawings and embodiments:

Embodiment 1: Solar cell blinds with picture lighting function

In this embodiment, on the basis of existing blinds, flexible solar panels, charging control circuits, rechargeable batteries, connecting lines, switches and indicator lights are added to realize the power generation function of the blinds. Its structure is shown in Figure 1, including an upper rail cover 101, a mounting bracket 102 installed on the upper rail cover, a runner device 103, an upper rail 105, an orienter 106, a steering gear 107, an adjustment rod 108, and an adjustment rod handle 112 , lift cord 111, stay cord 110 and stay cord handle 115, wear a plurality of shutter blades 109 and lower rail envelope 113, lower rail 114 that are connected into curtain with lift cord;

On this basis, the present embodiment adds a rechargeable battery and its charging control circuit board (not shown in the figure), an indicator light 104, a switch, and a flexible solar battery on the outside of the louver blade 109 on the upper rail cover. Solar cell shutter blades.

The battery of this embodiment generally adopts a lithium ion battery for a mobile phone or a lithium battery for a notebook computer. Its charging voltage matches the curtain, and its service efficiency is relatively high. It is also convenient for users to purchase and replace, and other rechargeable batteries can also be used.

The venetian blind of this embodiment is 1 meter in width and height, and is composed of 20 blades of 1 meter in length and 5 cm in width. Eight silicon flexible solar panels with an area of 3 cm × 12 cm are laid on the outside of each blade. At present, The flexible solar panels developed by Konarka Technology Company of the United States, the University of California, Sharp Corporation of Japan, Canon Corporation of Japan, Korea Electronics Research Institute, or the flexible solar panels produced by China Jinneng Investment Co., Ltd. 0.4 mm. In addition, a planar lighting power supply, such as an electroluminescent power supply, can also be laid inside the louver blade 109 according to user requirements. The light-emitting power supply can be printed into various patterns, such as the picture of the bright moon in the pine tree and so on.

Lifting rope 111 of the present utility model, its structure as shown in Figure 2, comprises: adopt the lifting rope that adopts conductive material to make, and the periphery of the hole on the shutter blade 109 that lifting rope passes is provided with metal ring, is connected with metal ring. Brush; the metal rings 202, 207 are connected with the solar panel on the louver blade 109 through the brushes 203, 206, and the lifting rope on one side is connected to the positive pole, and the lifting rope on the other side is connected to the negative pole. The working structure and working principle of the electric brush are that the positive pole 209 and the secondary pole 210 of the solar panel are respectively connected to the metal rings 202 and 207 through the wires 201 and 208, and the metal rings 202 and 207 are welded with brushes 203 and 206 made of metal wires. Therefore, even when the lifting ropes 204, 205 made of conductive materials are pulled, the electric energy generated by each blade can be collected to the charging control circuit.

The adjusting rod 108 of the utility model is hollow, and the adjusting rod handle 112 is provided with a solar cell lighting switch or a switch for powering other electrical appliances, and the lead connecting the solar cell and the switch is passed through the hollow adjusting rod 108 .

The charging control circuit of the present utility model is shown in Fig. 5 . When the solar cell is in use, due to the large change of sunlight and its relatively high internal resistance, the output voltage is unstable and the output current is small, which requires a DC conversion circuit to convert the voltage before charging. This circuit is a conventional single-tube DC conversion circuit, mainly composed of a high-frequency transformer T1, two switch tubes VT1 and VT2, two rectifier diodes VD1 and VD2, three capacitors C1, C2 and C3, and six resistors R1 , R2, R3, R4, R5 and R6; the connection relationship and working principle of the circuit are described as follows:

This circuit is in the form of a single-ended flyback converter circuit. When the switch tube VT1 is turned on, the induction voltage of the primary coil NP of the high-frequency transformer T1 is 1 positive and 2 negative, the secondary coil Ns is 5 positive and 6 negative, and the rectifier diode VD1 is in the cut-off state. At this time, the high-frequency transformer T1 passes through the primary coil Np stores energy; when the switch tube VT1 is cut off, the secondary coil Ns is 5 negative and 6 positive, and the energy stored in the high-frequency transformer T1 is rectified by VD1 and filtered by capacitor C3, and then output to the load. C1 is a filter protection capacitor. Transistor VT1 is a switching power supply tube, which forms a self-excited oscillation circuit with T1, R1, R2, R3, and C2. After the input power is added, the current flows to the base of VT1 through the startup resistor R1, making VT1 turn on. After VT1 is turned on, the input DC voltage is added to the primary coil Np of the transformer, and its collector current Ic increases linearly in Np, and the feedback coil Nb generates 3 positive and 4 negative induced voltages, so that VT1 has a positive base and a negative emitter. Positive feedback voltage, this voltage injects base current into VT1 through C2 and R3 to further increase the collector current of VT1, and positive feedback produces an avalanche process, making VT1 saturated and turned on. During VT1's saturated conduction period, T1 stores magnetic energy through the primary coil Np. At the same time, the induced voltage charges C2. As the charging voltage of C2 increases, the base potential of VT1 gradually decreases. When the change of base current of VT1 cannot satisfy its continuous saturation, VT1 exits the saturation region and enters the amplification region. After VT1 enters the amplified state, its collector current decreases from the maximum value before the amplified state, and 3 negative and 4 positive induced voltages are generated in the feedback coil Nb, so that the base current of VT1 decreases, and its collector current decreases accordingly. Feedback once again appeared in an avalanche process, and VT1 was cut off quickly. After VT1 is cut off, the energy stored in transformer T1 is provided to the load, and the voltage of 5 negative and 6 positive generated by the secondary coil Ns is rectified and filtered by diode VD1, and a DC voltage is obtained on C3 to charge the battery. When VT1 is cut off, the DC power supply input voltage and the 3 negative and 4 positive voltages induced by Nb reversely charge C2 through R1 and R3, gradually increase the base potential of VT1, make it turn on again, and turn it over again to reach a saturated state. The circuit oscillates repeatedly like this. R5, R6, R4, VD2, VT2, etc. form a voltage limiting circuit to protect the battery from being overcharged.

In this embodiment, four silicon flexible solar panels with an area of 3cm×12cm are laid on the outside of one blade. The no-load output voltage is 4V, and the output voltage is 3V when the working current is 40mA. Since the working efficiency of the DC converter increases with the increase of the input voltage, four solar panels are connected in series and the input voltage of the circuit is 12V. The working current of the circuit is related to the intensity of sunlight, it is about 40mA under normal conditions, and the charging current is about 85mA at this time.

The 20 blades of this embodiment can provide a charging capacity of 3400mA. Generally, the battery capacity of a mobile phone is 850mA, and 4 pieces can be fully charged in one hour, which is equivalent to 50Wh. Hour. A 10W energy-saving lamp can be used for 5 hours a day, and it can be used for a longer time if it only uses electroluminescence to play a decorative lighting effect, or for background lighting when watching TV. For saving cost, rechargeable battery can adopt gel battery. The lifting of shutter also can adopt electric mode, and electric control mechanism has appeared on the market at present, and the utility model can utilize self power supply, also can use remote control mode etc.

Example 2: Flexible Solar Cell Roller Blind

This embodiment is also based on the common roller blind structure, adding flexible solar panels, charging control circuits, rechargeable batteries, connecting lines, switches and indicator lights to realize the power generation function of the curtains. Its structure is as shown in Figure 3, including upper rail cover 307, the mounting bracket installed on the upper rail cover, runner device, upper rail, orienter, steering gear, adjusting rod, adjusting rod handle, lifting rope, stay rope and Drawstring handles, roller blinds; the above-mentioned components are all part of the current common roller blinds.

On this basis, the present embodiment adds a rechargeable battery and its charging control circuit board 104, indicator lights, and switches on the upper rail cover 307, and lays one or several flexible solar cells connected by wires on the outside of the roller blind. The battery array composed of panels constitutes a solar cell roller blind.

The positive pole 302 and the negative pole 301 of the flexible solar panel are connected to the charging control circuit inside the curtain upper rail cover 307 and the rechargeable battery pack 104 through wires 304 and 305 . When the roller blind is retracted, the upper rail cover 307 and the roller blind rotate together, and the upper rail cover 307 is installed on the curtain box of the window by the fixed shafts 303, 308 with electric brushes. The rechargeable battery is connected with the power switch 309 through the wire and the fixed shaft 308, and can be connected with electric equipment, such as lamps and the like. The structure of the fixed shafts 303 and 308 with electric brushes is as shown in Figure 4. The internal wires 406 and 407 are connected to the metal rings 409 and 410. The metal ring remains connected, thereby maintaining conduction with the external wires 404 , 412 . The fixed shaft body 401 is fixed on the curtain box of the window through the metal hinge 402, and the nail hole 403 is used to pass through the screw.

Since the roller blind can be installed with a single battery panel with a larger area, the curtain body structure is relatively complete, the charging effect is better, and the visual effect can be in the form of a wall chart. Utilizing the fixed shaft 303, the charging control circuit and the rechargeable battery pack 104 can also be installed outside the shaft sleeve 307 (such as fixed inside the curtain box), which is convenient for inspection and replacement. The rolling of the roller blind can adopt modes such as lifting rope or gear shaft, even electric control, and the utility model is not limited.

Claims (7)

1. A flexible solar cell curtain, comprising an upper rail cover, a mounting bracket installed on the upper rail cover, a runner device, an upper rail, an orienter, a steering gear, an adjusting rod, an adjusting rod handle, a lifting rope, a stay cord and The drawstring handle is a curtain connected with a lifting rope; it is characterized in that it also includes a rechargeable battery and its charging control circuit board, indicator light, and switch installed on the above-mentioned upper rail cover, and a Flexible solar cells form a solar cell curtain. 2. The curtain according to claim 1, wherein the rechargeable battery is a lithium ion battery for a mobile phone or a lithium battery for a notebook computer. 3. The curtain according to claim 1, further comprising laying a plane lighting power supply on the inside of the curtain, and the lighting power supply is printed with a pattern. 4. The curtain as claimed in claim 1, wherein the adjusting rod is hollow, and the handle of the adjusting rod is equipped with a solar battery lighting switch or a switch for powering other electrical appliances, and the solar energy is passed through the hollow adjusting rod. The battery is connected to the wire of the switch. 5. The curtain according to claim 1, wherein the curtain is a louver composed of a plurality of louver blades, and the lower end of the louver is connected with a lower rail envelope and a lower rail thereof. 6. The curtain as claimed in claim 5, characterized in that, the lifting rope adopts a lifting rope made of conductive material, a metal ring is arranged around the hole on the shutter blade through which the lifting rope passes, and a metal ring is connected with the metal ring. Connected brushes; the metal ring is connected to the solar panels on the shutter blades through the brushes, and the lifting rope on one side is connected to the positive pole, and the lifting rope on the other side is connected to the negative pole. 7. The curtain according to claim 1, 2 or 3, characterized in that the curtain is a roller blind, and fixed shafts with electric brushes and metal rings are installed at both ends of the upper rail sleeve.

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