CN204467312U - Travelling charging knapsack with solar energy power accumulating pool controller - Google Patents

Abstract

The utility model discloses a travel charging knapsack with a solar battery controller, which comprises a knapsack main body. The knapsack main body includes a back with a back bag. The back bag is provided with a solar conversion device and a A storage battery and a display module connected to the solar conversion device; the solar conversion device includes a solar panel, a voltage detection circuit, a controller, a voltage stabilizing circuit and a charging control circuit; the voltage detection circuit is respectively connected to the solar panel and the storage battery, The voltage detection circuit is connected to the voltage stabilizing circuit, the voltage stabilizing circuit is connected to the controller, and the display module and the charging control circuit are respectively connected to the controller. The utility model distinguishes whether it is daytime or night by the voltage at both ends of the solar battery board. Determine whether to take charge control by judging the voltage at both ends of the battery. The charging control mode adopts PWM control. And there is an indicator light to indicate the state of the voltage at both ends of the battery at all times, so that the user can see at a glance.

Description

Travel Charging Backpack with Solar Battery Controller

technical field

The utility model relates to a backpack, in particular to a travel charging backpack with a solar battery controller.

Background technique

For people who go out for adventure or travel, it is very important to have a reliable power source. Once the power-consuming devices such as mobile phones and cameras are out of power, they will completely lose their function. However, it is difficult for people who go out to explore or travel to carry large-scale power supply equipment. Although they can also bring a power bank as a backup power source, after all, the capacity of the power bank is limited, and it can only be charged for a limited number of times. Not very practical.

Utility model content

In view of this, the purpose of the utility model is to provide a travel charging backpack with a solar battery controller.

The purpose of this utility model is achieved through the following technical solutions, a travel charging backpack with a solar battery controller, including a backpack main body 1, the backpack main body includes a back with a back bag, and the back bag is provided with The solar energy conversion device 2, the storage battery connected with the solar energy conversion device and the display module connected with the solar energy conversion device; the solar energy conversion device includes a solar panel, a voltage detection circuit, a controller, a voltage stabilizing circuit and a charging control circuit; the voltage The detection circuit is respectively connected with the solar panel and the storage battery for detecting the voltage of the solar panel and the storage battery, the voltage detection circuit is connected with the voltage stabilizing circuit, the voltage stabilizing circuit is connected with the controller, the display module, the charging control The circuits are respectively connected with the controller, and the controller is composed of a control chip and its surrounding circuits.

Further, the voltage detection circuit includes a battery voltage detection circuit and a solar panel voltage detection circuit, and the solar panel voltage detection circuit includes diodes D7-D9, resistor R9, resistor R10, capacitor C9, and capacitor C10. The battery pack voltage detection circuit includes resistors R10-R15, capacitor C11, diode D10, diode D11, transistor T2, transistor T3, transistor T4 and MOS transistor TL2. The anode of the diode D7 is connected to the solar panel, and the cathode of the diode D7 is connected to the solar panel. The input terminal of the voltage stabilizing circuit is connected, the cathode of the diode D7 is respectively connected to one end of the resistor R9 and one end of the capacitor C10, the other end of the resistor R9 is connected to VCC through the resistor R10, the other end of the capacitor C10 is connected to VCC, and the capacitor C9 is connected in parallel to the resistor R10 Both ends, the diode D9 is connected in parallel with the two ends of the resistor R10 and the anode of the diode D9 is connected to the ground, the cathode of the diode D9 is connected to the controller, the diode D8 is connected in parallel with the capacitor C10 and the anode of the diode D8 is connected to the ground; the positive input terminal of the battery is connected to the resistor R15 One end of the resistor R15 is connected to one end of the resistor R14 and the input end of the voltage regulator circuit, the other end of the resistor R14 is grounded through the resistor R13, the capacitor C11 is connected in parallel with the resistor R13, the diode D11 is connected in parallel with the resistor R13 and the diode D11 The anode of the diode D11 is connected to the controller; the source of the MOS transistor TL2 is connected to VCC, the drain of the MOS transistor TL2 is connected to the ground, the gate of the MOS transistor TL2 is connected to one end of the resistor R10, and the other end of the resistor R10 is respectively connected to the triode T3 , The emitter of the transistor T4 is connected, the collector of the transistor T4 is grounded, the collector of the transistor T3 is connected to the input terminal of the voltage regulator circuit, the base of the transistor T3 is connected to the base of the transistor T4, the gate of the MOS transistor TL2 is connected to the drain A diode D10 is connected in parallel between the poles and the anode of the diode D10 is grounded, the base of the triode T3 is connected to the collector of the triode T2, the emitter of the triode T2 is grounded, the base of the triode T2 is connected to the controller through a resistor R11, and the base of the triode T2 is connected to the controller. The collector is connected with the input end of the voltage stabilizing circuit through the resistor R12.

Further, the voltage stabilizing circuit includes a diode D6, capacitors C3-C6 and a three-terminal voltage stabilizing chip 7805, the anode of the diode D6 is respectively connected to the output end of the battery voltage detection circuit and the output end of the solar panel voltage detection circuit connection, the cathode of diode D6 is connected to the input terminal of the three-terminal voltage regulator chip 7805, the capacitor C3 and capacitor C4 are respectively connected in parallel between the input terminal of the three-terminal voltage regulator chip and the ground terminal, and the capacitor C5 and capacitor C6 are respectively connected in parallel to the three-terminal voltage regulator chip. Between the output terminal of the pressure chip and the ground terminal.

Further, the charging control circuit includes resistors R6-R8, transistor T1, diode D5 and MOS transistor TL1, one end of the resistor R6 is connected to the controller, the other end of the resistor R6 is connected to the base of the transistor T1, and the transistor T1 The emitter is grounded, the collector of the triode T1 is connected to one end of the resistor R7, the cathode of the diode D5, and the gate of the MOS tube TL1, the anode of the diode D5 is grounded, the drain of the MOS tube is grounded through the resistor R8, and the other end of the resistor R7 , The sources of the MOS transistor TL1 are connected in parallel with the USB interface 3 .

Further, the controller also includes resistors R16-R21, capacitor C7, capacitor C8, the first amplifier LM393 and the second amplifier LM933, the positive input terminal of the first amplifier LM393 is grounded through the resistor R21, the negative input terminal of the first amplifier LM393 The input terminal is connected to the ground through the resistor R16 and the capacitor C7 connected in sequence, the resistor R17 is connected in parallel between the output terminal of the first amplifier LM393 and the positive input terminal, the output terminal of the first amplifier LM393 is connected to the negative input terminal of the second amplifier, and the second amplifier LM393 The positive input terminal of the second amplifier LM393 is grounded through the resistor R18, the positive input terminal of the second amplifier LM393 is connected to VCC through the resistor R19, a resistor R20 is connected in parallel between the output terminal of the second amplifier LM393 and the positive power supply terminal, and the positive input terminal of the second amplifier LM393 is connected to VCC. A capacitor C8 is connected in parallel between the negative input terminal of the second amplifier LM393 and the negative power supply terminal, and the output terminal of the second amplifier LM393 is connected to the control chip of the controller.

Preferably, the backpack body further includes a backpack pad, and the backpack pad includes a packaging cloth bag, a plastic support frame, a fan, and several ventilation holes, the packaging cloth bag is provided with several ventilation holes, and the plastic support frame is arranged in the packaging cloth bag, It is arranged on one side of the plastic supporting frame, and the fan is arranged on the upper end of the plastic supporting frame.

Owing to adopting above-mentioned technical scheme, the utility model has following advantage:

The utility model uses solar energy as the source of electric energy, is safe and environment-friendly, economical and reliable, can effectively meet the electricity demand of long-time outdoor travellers, and has good practicability.

Due to the use of single-chip programming to control the charging process, the service life of the battery is increased, and the charging and discharging are safer and more effective. Moreover, after the optimization algorithm is used, the battery can work more reliably, such as: it can also work effectively in continuous cloudy conditions.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic diagram of the structure of the utility model;

Fig. 2 is the structural diagram of backpack pad;

Fig. 3 is a circuit diagram of a voltage detection circuit;

Fig. 4 is the circuit diagram of voltage stabilizing circuit;

Fig. 5 is a circuit diagram of the charging control circuit;

Fig. 6 is a partial circuit diagram of the controller;

Fig. 7 is a partial circuit diagram of the controller;

Figure 8 is a circuit diagram of the display module;

Fig. 9 is a flow chart of day and night discrimination.

Detailed ways

The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present utility model, rather than limiting the protection scope of the present utility model.

As shown in Fig. 1, a kind of travel charging backpack with solar battery controller, comprises backpack main body 1, and described backpack main body comprises the back that is provided with backpack, and described backpack is provided with solar energy conversion device 2, and solar energy conversion The storage battery connected to the device and the display module connected with the solar conversion device; the solar conversion device includes a solar panel, a voltage detection circuit, a controller, a voltage stabilizing circuit and a charging control circuit; the voltage detection circuit is connected with the solar panel, the The battery is connected to detect the voltage of the solar panel and the battery, the voltage detection circuit is connected to the voltage stabilizing circuit, the voltage stabilizing circuit is connected to the controller, and the display module and the charging control circuit are respectively connected to the controller. The controller is composed of a control chip and its surrounding circuits.

Backpack main body: stores various items, and has the same function as a normal backpack.

Solar panels: Convert solar energy into electrical energy. From the perspective of cost performance, single crystal silicon is used as the solar energy conversion device.

Charge control circuit: This circuit is responsible for reasonable charge and discharge control of the electric energy collected by the solar panel. Since the voltage and current of the solar panel change with the light intensity, while the traditional battery is charged at a constant voltage, a single-chip control circuit is needed to control the charging of the battery to achieve the best charging effect. Among them, the charging control chip is STC12C2052AD, which can effectively realize the control of the battery through the on-off of the field effect tube.

Battery: A small lithium battery that is rechargeable and light in weight is used as an electrical energy storage device.

The controller includes a control chip STC12C2052AD.

As an improvement to the present embodiment, the travel backpack further includes lighting equipment connected to the storage battery.

As shown in Figure 3, the voltage detection circuit includes a storage battery voltage detection circuit and a solar panel voltage detection circuit, and the solar panel voltage detection circuit includes diodes D7-D9, resistor R9, resistor R10, capacitor C9, capacitor C10, the battery pack voltage detection circuit includes resistors R10-R15, capacitor C11, diode D10, diode D11, transistor T2, transistor T3, transistor T4 and MOS transistor TL2, the anode of the diode D7 is connected to the solar panel, and the diode The cathode of D7 is connected to the input terminal of the voltage stabilizing circuit, the cathode of diode D7 is respectively connected to one end of resistor R9 and one end of capacitor C10, the other end of resistor R9 is connected to VCC through resistor R10, the other end of capacitor C10 is connected to VCC, capacitor C9 Connected in parallel to both ends of the resistor R10, the diode D9 is connected in parallel to both ends of the resistor R10 and the anode of the diode D9 is grounded, the cathode of the diode D9 is connected to the controller, specifically to the 13 pin of the control chip STC12C2052AD; the diode D8 is connected to the capacitor C10 connected in parallel and the anode of the diode D8 is grounded; the positive input terminal of the battery is connected to one end of the resistor R15, the other end of the resistor R15 is respectively connected to one end of the resistor R14 and the input terminal of the voltage stabilizing circuit, and the other end of the resistor R14 is grounded through the resistor R13. The capacitor C11 is connected in parallel with the resistor R13, the diode D11 is connected in parallel with the resistor R13 and the anode of the diode D11 is grounded, the cathode of the diode D11 is connected with the controller, specifically connected with the 14 pin of the control chip STC12C2052AD; the source of the MOS tube TL2 is connected with VCC , the drain of the MOS transistor TL2 is grounded, the gate of the MOS transistor TL2 is connected to one end of the resistor R10, the other end of the resistor R10 is respectively connected to the emitters of the transistor T3 and the transistor T4, the collector of the transistor T4 is grounded, and the collector of the transistor T3 is connected to the The input terminal of the voltage stabilizing circuit is connected, the base of the triode T3 is connected with the base of the triode T4, a diode D10 is connected in parallel between the gate and the drain of the MOS transistor TL2 and the anode of the diode D10 is grounded, the base of the triode T3 is connected with the triode The collector of T2 is connected, the emitter of the triode T2 is grounded, the base of the triode T2 is connected to the controller through the resistor R11, specifically, the resistor R11 is connected to the pin 11 of the control chip STC12C2052AD; the collector of the triode T2 is connected to the controller through the resistor R12 The input terminal connection of the regulator circuit.

The P1.1 port of the single-chip microcomputer 2052 can be used as an ADC input channel, so the sampling result can be sent to the inside of the single-chip microcomputer. In many occasions that require analog-to-digital conversion, in order to improve the resolution of AD, a smaller voltage is often selected as the reference power supply, especially to collect analog signals with a smaller voltage value. At this time, the reference voltage inside the 2052 microcontroller (1.1V) Undoubtedly a better choice. The analog-to-digital conversion module of this controller uses the 1.1V reference voltage in the microcontroller. The information collected by the battery sampling circuit is sent to the ADC. Through the analysis of the single-chip microcomputer, the state of the current battery is judged and the corresponding charging control method is adopted. The solar panel voltage detection circuit is similar to the battery voltage detection circuit. When P3.7 outputs low level, T2 is cut off, so T4 is cut off, T3 is turned on, so VT3 is turned on, and the negative terminal of the battery is connected with the negative terminal of the solar panel, and the solar panel charges the battery. When P3.7 outputs high level, T2 is turned on, so T3 is turned off, VT1 is turned on, so VT3 is turned off, and the negative terminal of the battery is disconnected from the negative terminal of the solar panel. At this time, the solar panel cannot charge the battery. The controller decides whether to charge or not and which duty cycle PWM wave to use in the charging stage to control by judging the battery terminal voltage and the solar panel terminal voltage.

As shown in Figure 4, the voltage stabilizing circuit includes a diode D6, capacitors C3-C6 and a three-terminal voltage stabilizing chip 7805, and the anode of the diode D6 is connected to the output terminal of the battery voltage detection circuit and the solar panel voltage detection circuit respectively. The output terminal of the circuit is connected, the cathode of the diode D6 is connected to the input terminal of the three-terminal voltage regulator chip 7805, the capacitor C3 and the capacitor C4 are respectively connected in parallel between the input terminal and the ground terminal of the three-terminal voltage regulator chip, and the capacitor C5 and the capacitor C6 are respectively connected in parallel Between the output terminal of the three-terminal regulator chip and the ground terminal.

As shown in Figure 5, the charging control circuit includes resistors R6-R8, transistor T1, diode D5 and MOS transistor TL1, and one end of the resistor R6 is connected to the controller, specifically to pin 17 of the control chip STC12C2052AD , the other end of the resistor R6 is connected to the base of the transistor T1, the emitter of the transistor T1 is grounded, the collector of the transistor T1 is respectively connected to one end of the resistor R7, the cathode of the diode D5, and the gate of the MOS transistor TL1, and the anode of the diode D5 Grounded, the drain of the MOS tube is grounded through the resistor R8, and the other end of the resistor R7 and the source of the MOS tube TL1 are connected in parallel to the USB interface 3 .

As shown in Figure 6, the controller also includes resistors R16-R21, capacitor C7, capacitor C8, a first amplifier LM393 and a second amplifier LM933, the positive input terminal of the first amplifier LM393 is grounded through the resistor R21, and the first The negative input terminal of the amplifier LM393 is connected to the ground through the resistor R16 and the capacitor C7 connected in sequence, and the resistor R17 is connected in parallel between the output terminal of the first amplifier LM393 and the positive input terminal, and the output terminal of the first amplifier LM393 is connected to the negative input terminal of the second amplifier. The positive input terminal of the second amplifier LM393 is grounded through the resistor R18, the positive input terminal of the second amplifier LM393 is connected to VCC through the resistor R19, the output terminal of the second amplifier LM393 is connected in parallel with the positive power supply terminal and the positive input terminal of the second amplifier LM393 The terminal is connected to VCC, the negative input terminal of the second amplifier LM393 is connected in parallel with the negative power supply terminal, and the output terminal of the second amplifier LM393 is connected to the control chip of the controller, specifically connected to pin 6 of the control chip STC12C2052AD.

As shown in Figure 7, the controller also includes a prompting part, the prompting part includes light-emitting diodes LED1, LED2, LED3, resistors R3, R4, R5, VCC is connected in sequence with light-emitting diodes LED1, resistor R3 and control chip STC12C2052AD The 16-pin connection of VCC is connected with the 15-pin of the control chip STC12C2052AD through the sequentially connected light-emitting diode LED2 and resistor R4, and the VCC is connected with the 9-pin of the control chip STC12C2052AD through the sequentially connected light-emitting diode LED3 and resistor R5. The three light-emitting diodes correspond to a charging mode: fast charging, boost charging, and trickle charging.

The display module includes a digital tube DPY_7-SEG_DP, a chip 74HC595, the output end of the chip 74HC595 is connected to the digital tube through a resistor, the 20 pins of the chip 74HC595 are connected with the 2 pins of the control chip STC12C2052AD, the 31 pins of the chip 74HC595 are connected with the control chip STC12C2052AD3 3-pin connection, chip 74HC59534 pin and control chip STC12C2052AD 8-pin connection.

It should be noted that those skilled in the art can select different pins to connect with corresponding electrical components as required.

The utility model distinguishes whether it is daytime or night by the voltage at both ends of the solar panel; decides whether to adopt charging control by judging the voltage at both ends of the storage battery. When the second threshold is reached, boost charging is performed, and when the battery voltage is lower than the third threshold, trickle charging is performed. The charging control mode adopts PWM control. And there is an indicator light to indicate the state of the voltage at both ends of the battery at all times, so that the user can see at a glance.

As shown in Figure 2, the backpack main body also includes a backpack pad 4, and the backpack pad 4 includes an encapsulation cloth bag 4-1, a plastic support frame 4-2, a fan 4-3, several ventilation holes 4-4, and the package The cloth bag 4-1 is provided with several ventilation holes 4-4, the plastic support frame 4-2 is arranged in the encapsulation cloth bag 4-1, is arranged on the side of the plastic support frame 4-2, and the fan 4-3 is arranged on the plastic support frame 4 The upper end of -2.

The utility model combines a solar battery and a backpack. The backpack not only has the function of an ordinary backpack, but also can provide an effective emergency backup power supply because the solar battery panel and the battery are integrated on the backpack. .

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (7)

1. the travelling charging knapsack with solar energy power accumulating pool controller, comprise knapsack main body (1), described knapsack main body comprises the back being provided with haversack, it is characterized in that: the display module described haversack being provided with device for converting solar energy (2), the battery be connected with device for converting solar energy and being connected with device for converting solar energy; Described device for converting solar energy comprises solar panel, voltage detecting circuit, controller, mu balanced circuit and charging control circuit; Described voltage detecting circuit is connected with solar panel, battery respectively, for detecting the voltage of solar panel and battery, described voltage detecting circuit is connected with mu balanced circuit, described mu balanced circuit is connected with controller, described display module, charging control circuit are connected with controller respectively, and described controller is made up of control chip and peripheral circuits thereof.

2. the travelling charging knapsack of band solar energy power accumulating pool controller according to claim 1, it is characterized in that: described voltage detecting circuit comprises accumulator voltage detecting circuit and too can positive cell panel voltage detecting circuit, and described solar cell panel voltages testing circuit comprises diode D7 ~ D9, resistance R9, resistance R10, electric capacity C9, electric capacity C10, described battery voltage testing circuit comprises resistance R10 ~ R15, electric capacity C11, diode D10, diode D11, triode T2, triode T3, triode T4 and metal-oxide-semiconductor TL2, the anode of described diode D7 is connected with solar panel, and the negative electrode of diode D7 is connected with the input of mu balanced circuit, the negative electrode of diode D7 respectively with one end of resistance R9, one end of electric capacity C10 connects, other one end of resistance R9 meets VCC through resistance R10, another termination VCC of electric capacity C10, electric capacity C9 is parallel to resistance R10 two ends, diode D9 is parallel to the two ends of resistance R10 and the plus earth of diode D9, the negative electrode of diode D9 is connected with controller, diode D8 and the plus earth of diode D8 in parallel with electric capacity C10, the positive input terminal of battery is connected with one end of resistance R15, the other end of resistance R15 is connected with one end of resistance R14, the input of mu balanced circuit respectively, the other end of resistance R14 is through resistance R13 ground connection, electric capacity C11 is in parallel with resistance R13, diode D11 and the plus earth of diode D11 in parallel with resistance R13, the negative electrode of diode D11 is connected with controller, the source electrode of metal-oxide-semiconductor TL2 meets VCC, the grounded drain of metal-oxide-semiconductor TL2, grid connecting resistance R10 one end of metal-oxide-semiconductor TL2, the other end of resistance R10 respectively with triode T3, the emitter stage of triode T4 connects, the grounded collector of triode T4, the colelctor electrode of triode T3 is connected with the input of mu balanced circuit, the base stage of triode T3 is connected with the base stage of triode T4, parallel diode D10 between the grid of metal-oxide-semiconductor TL2 and drain electrode and the plus earth of diode D10, the base stage of described triode T3 is connected with the colelctor electrode of triode T2, the grounded emitter of triode T2, the base stage of triode T2 is connected with controller through resistance R11, the colelctor electrode of triode T2 is connected with the input of mu balanced circuit through resistance R12.

3. the travelling charging knapsack of band solar energy power accumulating pool controller according to claim 2, it is characterized in that: described mu balanced circuit comprises diode D6, electric capacity C3 ~ C6 and three-terminal voltage-stabilizing chip 7805, the anode of described diode D6 respectively with the output of accumulator voltage detecting circuit, too can positive cell panel voltage detecting circuit output connect, the negative electrode of diode D6 is connected with the input of three-terminal voltage-stabilizing chip 7805, electric capacity C3, electric capacity C4 is parallel between three-terminal voltage-stabilizing chip input and earth terminal respectively, electric capacity C5, between the output that electric capacity C6 is parallel to three-terminal voltage-stabilizing chip respectively and earth terminal.

4. the travelling charging knapsack of band solar energy power accumulating pool controller according to claim 3, it is characterized in that: described charging control circuit comprises resistance R6 ~ R8, triode T1, diode D5 and metal-oxide-semiconductor TL1, one end of described resistance R6 is connected with controller, the other end of resistance R6 is connected with the base stage of triode T1, the grounded emitter of triode T1, the colelctor electrode of triode T1 respectively with one end of resistance R7, the negative electrode of diode D5, the grid of metal-oxide-semiconductor TL1 connects, the plus earth of diode D5, the drain electrode of metal-oxide-semiconductor is through resistance R8 ground connection, the other end of resistance R7, USB interface in parallel (3) between the source electrode of metal-oxide-semiconductor TL1.

5. the travelling charging knapsack of band solar energy power accumulating pool controller according to claim 1, it is characterized in that: described controller also comprises resistance R16 ~ R21, electric capacity C7, electric capacity C8, first amplifier LM393 and the second amplifier LM933, the positive input terminal of described first amplifier LM393 is through resistance R21 ground connection, the resistance R16 of negative input end through connecting successively of the first amplifier LM393, electric capacity C7 ground connection, parallel resistance R17 between the output of the first amplifier LM393 and positive input terminal, the output of the first amplifier LM393 is connected with the negative input end of the second amplifier, the positive input terminal of the second amplifier LM393 is through resistance R18 ground connection, the positive input terminal of the second amplifier LM393 meets VCC through resistance R19, parallel resistance R20 between the output of the second amplifier LM393 and positive power source terminal and the positive input termination VCC of the second amplifier LM393, shunt capacitance C8 between the negative input end of the second amplifier LM393 and negative power end, the output of described second amplifier LM393 is connected with the control chip of controller.

6. the travelling charging knapsack of band solar energy power accumulating pool controller according to claim 1, it is characterized in that: described knapsack main body also comprises knapsack pad (4), described knapsack pad (4) comprises encapsulation cloth bag (4-1), plastic support frame (4-2), fan (4-3), some airing holes (4-4), encapsulation cloth bag (4-1) is provided with some airing holes (4-4), plastic support frame (4-2) is arranged in encapsulation cloth bag (4-1), be arranged on plastic support frame (4-2) side, fan (4-3) is arranged on the upper end of plastic support frame (4-2).

7. the travelling charging knapsack of band solar energy power accumulating pool controller according to claim 1, it is characterized in that: this packsack also comprises lighting apparatus, described lighting apparatus is connected with battery.