Photovoltaic cleaning robot battery heating device used in extremely cold environment

Abstract

The utility model relates to the technical field of battery heating devices, and discloses a photovoltaic cleaning robot battery heating device used in an extremely cold environment, which comprises a photovoltaic power station, a photovoltaic cleaning robot, a photovoltaic panel mounted on the photovoltaic cleaning robot, a photovoltaic field area self power generation unit box transformer substation and an external power supply slide wire, a battery module, a corresponding temperature sensor, a heating controller, a heat conducting plate and a circuit board are arranged at the bottom of the photovoltaic panel, and the battery module, the corresponding temperature sensor, the heating controller, the heat conducting plate and the circuit board are wrapped by an external thermal insulation material. By heating the battery of the photovoltaic cleaning robot, the problems of short service life and low discharge efficiency of the battery of the photovoltaic cleaning robot in an extremely cold environment can be fully solved, and the problems of high-temperature damage of the battery, even high-temperature ignition of the battery and large-area burning loss of a photovoltaic module caused by operation of the cleaning robot in a high-temperature environment are also solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery heating devices, and specifically relates to a battery heating device for a photovoltaic cleaning robot in an extremely cold environment. Background Technique

[0002] In Xinjiang region, strong wind weather is frequent and accompanied by sand and dust, there is snowfall in winter, and the annual temperature difference is large. The external operating environment where the components are located is complex, and it is relatively difficult to obtain clean water sources. Manual cleaning is very difficult and there are potential safety hazards for equipment and personnel. If not cleaned in time, it is easy to cause frequent dust accumulation and stain accumulation on the components, and the surface of the components is very easy to be polluted by dust, powder, etc., seriously affecting the power generation efficiency of the components, and then resulting in a very serious decline in power generation. The dust on the surface of the components not only seriously affects the power generation efficiency of the components, but the dirt accumulated along the lower edge of the components is also easy to cause hot spots on the components, reducing the service life of the components. Under normal light intensity conditions, the components at the lower edge that have not been cleaned will change from power generation units to power consumption units, and the shaded photovoltaic components will become non-power-generating load resistors, consuming the power generated by the connected components, that is, generating heat. Once the hot spot effect is formed, this process will exacerbate the aging of the components, reduce the output, and may cause a fire in serious cases.

[0003] At present, conventional domestic and foreign cleaning robots are powered by lithium batteries carried by themselves to drive their own movement. The normal operating environment temperature of lithium batteries is 0 - 40°C. In extreme operating environments, the use safety and performance of the robots cannot be guaranteed; after the temperature is lower than 0°C, the performance of lithium batteries will decline, and the discharge capacity will decrease rapidly, which is not conducive to use in low-temperature environments in winter.

[0004] Therefore, we need to provide a battery heating device for a photovoltaic cleaning robot in an extremely cold environment to solve the problems that the battery life of the photovoltaic cleaning robot is short, the battery discharge efficiency is low, and it cannot work normally in an extremely cold environment. At the same time, the cost of replacing the battery of the cleaning robot is high and the maintenance is difficult. Content of the Utility Model

[0005] The purpose of the utility model is to provide a battery heating device for a photovoltaic cleaning robot in an extremely cold environment to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A battery heating device for a photovoltaic cleaning robot in an extremely cold environment, including a photovoltaic power station, a photovoltaic cleaning robot, a photovoltaic panel installed on the photovoltaic cleaning robot, a unit box transformer for power generation by the photovoltaic field itself, and an external power supply sliding contact wire. A battery module, a corresponding temperature sensor, a heating controller, a heat conducting plate, and a circuit board are arranged at the bottom of the photovoltaic panel. The battery module, the corresponding temperature sensor, the heating controller, the heat conducting plate, and the circuit board are wrapped by an external heat preservation material;

[0007] The bottom of the photovoltaic power station is fixedly installed with a photovoltaic support bracket, and the photovoltaic cleaning robot is arranged on the photovoltaic power station;

[0008] The external power supply sliding contact wire adopts two energized sliding contact rail methods, namely multi-stage tubular sliding contact wire - 3 poles 6 square and aluminum alloy profile double guide rail.

[0009] Preferably, the battery module is in contact with the heat conducting plate, the temperature sensor is electrically connected to the heating controller, the heat conducting plate is internally provided with thermistors evenly distributed at equal intervals, and the heating controller is electrically connected to the thermistors. The temperature sensor and the heating controller are respectively electrically connected to the circuit board.

[0010] Preferably, the on-site power generation unit box transformer of the photovoltaic field area is used to provide power for the heating controller set on each robot. Each robot is equipped with a distribution box, and the 220V power provided by the box transformer is converted into a DC 24V safety voltage power supply through a 24V power module.

[0011] Preferably, the multi-stage tubular sliding contact wire - 3 poles 6 square is fixed to the longitudinal purlin and transverse purlin of the photovoltaic support bracket through a hanger, and the aluminum alloy profile double guide rail is fixed to the guide rail support purlin set on the photovoltaic support bracket.

[0012] Preferably, a current collector is arranged on the multi-stage tubular sliding contact wire - 3 poles 6 square, and a fork is fixedly installed between the current collector and the photovoltaic cleaning robot.

[0013] Preferably, a slider is slidably connected to the aluminum alloy profile double guide rail, and ear seats are fixedly installed on both the slider and the photovoltaic cleaning robot, and a chain is arranged between the ear seats.

[0014] Preferably, the guide rail end of the external power supply sliding contact wire is connected to a 24V AC-DC switching power supply. To ensure electrical safety, a time relay is added at the switching power supply end. When performing cleaning, it is controlled by a timer to be turned on for power supply.

[0015] The present invention provides a battery heating device for a photovoltaic cleaning robot in an extremely cold environment. It has the following beneficial effects:

[0016] (1). By heating the battery of the photovoltaic cleaning robot, the present invention can fully solve the problems that the battery life of the photovoltaic cleaning robot is short and the battery discharge efficiency is low in an extremely cold environment, and also solve the problems that when the cleaning robot operates in a high-temperature environment, it causes the battery to be damaged at high temperature, and even causes the battery to catch fire at high temperature, resulting in large-area burning of photovoltaic modules.

[0017] (2). By setting the heating device, the present invention can fully solve the problems that the battery life of the photovoltaic cleaning robot is short and the battery discharge efficiency is low in an extremely cold environment, and it cannot work normally. Brief Description of the Drawings

[0018] Figure 1 is a view of the heating device of the present utility model;

[0019] Figure 2 is a schematic structural view of the present utility model;

[0020] Figure 3 is a view of the multi-stage tubular sliding contact line - 3 poles 6 square 311 of the present utility model;

[0021] Figure 4 is the present utility model Figure 3 an enlarged view of A therein;

[0022] Figure 5 is a view of the double guide rails of the aluminum alloy profile of the present utility model;

[0023] Figure 6 is the present utility model Figure 5 an enlarged view of B therein.

[0024] In the figure: 111 photovoltaic power station, 112 photovoltaic support bracket, 2 photovoltaic cleaning robot, 21 photovoltaic panel, 3 external power supply sliding contact line, 311 multi-stage tubular sliding contact line - 3 poles 6 square, 312 hanger, 313 current collector, 314 fork, 321 aluminum alloy profile double guide rail, 322 slider, 323 ear seat, 324 chain, 325 guide rail support purlin. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0027] Embodiment 1

[0028] A preferred embodiment of the battery heating device for a photovoltaic cleaning robot in an extremely cold environment provided by the present utility model is as Figures 1-6As shown: A battery heating device for a photovoltaic cleaning robot in an extremely cold environment, including a photovoltaic power station 111, a photovoltaic cleaning robot 2, a photovoltaic panel 21 installed on the photovoltaic cleaning robot, a box transformer of the self-generated power unit in the photovoltaic field area, and an external power supply sliding contact wire 3. A battery module, a corresponding temperature sensor, a heating controller, a heat conducting plate, and a circuit board are arranged at the bottom of the photovoltaic panel 21. The battery module, the corresponding temperature sensor, the heating controller, the heat conducting plate, and the circuit board are wrapped by an external thermal insulation material. The battery module is in contact with the heat conducting plate. The temperature sensor is electrically connected to the heating controller. The heat conducting plate is internally provided with thermistors evenly distributed at equal intervals, and the heating controller is electrically connected to the thermistors. The temperature sensor and the heating controller are respectively electrically connected to the circuit board. In this embodiment, by setting the temperature sensor, the temperature sensor monitors the battery temperature in real time. When the robot is in the parking position for charging and it is monitored that the temperature of the cleaning robot battery is lower than 0 °C, the heating device is turned on (the temperature sensor feeds back a signal to the circuit board, and the circuit board transmits the signal to the heating controller. The heating controller drives the thermistors inside the heat conducting plate to generate heat, and then the heat conducting plate is evenly heated. Since the heat conducting plate is made of a metal material and can conduct heat, the robot battery can be heated and protected). When it is monitored that the temperature of the robot battery is higher than 5 °C, the heating stops. In summer, when it is monitored that the temperature of the robot battery is greater than 55 °C, charging stops to avoid shortening the battery life due to high-temperature charging. When the robot receives a cleaning task and it is monitored by the temperature sensor of the robot battery that the battery temperature is lower than 0 °C, the battery heating device is turned on. When the temperature is greater than 15 °C, cleaning starts. When it is monitored that the temperature is greater than 65 °C, the robot does not accept the cleaning task.

[0029] A photovoltaic support bracket 112 is fixedly installed at the bottom of the photovoltaic power station 111, and the photovoltaic cleaning robot 2 is arranged on the photovoltaic power station 111;

[0030] The box transformer of the self-generated power unit in the photovoltaic field area is used to provide power for the heating controllers provided on each robot. Each robot is equipped with a distribution box, and the 220V power supplied by the box transformer is converted into a DC 24V safety voltage power supply through a 24V power module;

[0031] The external power supply sliding contact wire 3 adopts a multi-stage tubular sliding contact wire - 3 poles 6 square 311. The multi-stage tubular sliding contact wire - 3 poles 6 square 311 is fixed on the longitudinal and transverse purlins of the photovoltaic support bracket 112 through a hanger 312. A current collector 313 is arranged on the multi-stage tubular sliding contact wire - 3 poles 6 square 311, and a fork 314 is fixedly installed between the current collector 313 and the photovoltaic cleaning robot 2; The guide rail end of the external power supply sliding contact wire 3 is connected to a 24VAC-DC switching power supply. To ensure electrical safety, a time relay is added at the switching power supply end. When performing cleaning, it is controlled by a timer to turn it on for power supply.

[0032] In this embodiment, the external power supply sliding contact wire 3 is a multi-stage tubular sliding contact wire - 3 poles 6 square 311. This guide rail is arranged near the lower edge of the photovoltaic module and needs to run through the entire walking route of the robot. The robot walking track is electrified, and the robot is electrified to work through the contact between the robot and the track.

[0033] Embodiment 2

[0034] Please refer to Figures 1-6 , and on the basis of Embodiment 1, it is further obtained that: the external power supply sliding contact wire 3 is an aluminum alloy profile double guide rail 321. The aluminum alloy profile double guide rail 321 is fixed on the guide rail supporting purlin 325 provided on the photovoltaic support bracket 112. A slider 322 is slidably connected to the aluminum alloy profile double guide rail 321. Ear seats 323 are fixedly installed on both the slider 322 and the photovoltaic cleaning robot 2, and a chain 324 is arranged between the ear seats 323; the guide rail end of the external power supply sliding contact wire 3 is connected to a 24V AC-DC switching power supply. To ensure electrical safety, a time relay is added at the switching power supply end. When performing cleaning, it is controlled by a timer to be turned on for power supply. In this embodiment, by using the aluminum alloy profile double guide rail 321 as the external power supply sliding contact wire 3, this guide rail is arranged under the lower edge of the photovoltaic module and under the lower guide rail of the cleaning robot, and needs to run through the entire walking route of the robot. The robot drives the slider 322 to be connected to the guide rail and electrified through the chain 324.

[0035] During use, first, the 220V power supply provided by the box transformer is converted into a DC 24V safety voltage power supply through a 24V power module, and power is connected at the midpoint of the guide rail. When the robot is running, the maximum current loop is the smallest, reducing the power loss of the sliding contact rail and the voltage drop on the track. On the one hand, by using a multi-stage tubular sliding contact wire - 3 poles 6 square 311 as the guide rail, this guide rail is arranged near the lower edge of the photovoltaic module and needs to run through the entire walking route of the robot. The robot walking track is electrified, and the robot is electrified to work through the contact between the robot and the track. The guide rail end is connected to a 24V AC-DC switching power supply. To ensure electrical safety, a time relay is added at the switching power supply end. When performing cleaning, it is controlled by a timer to be turned on for power supply, so as to realize the cleaning of the cleaning robot; on the other hand, an aluminum alloy profile double guide rail 321 is used. This guide rail is arranged under the lower edge of the photovoltaic module and under the lower guide rail of the cleaning robot, and needs to run through the entire walking route of the robot. The robot drives the slider 322 to be connected to the guide rail and electrified through the chain 324. The guide rail end is connected to a 24V AC-DC switching power supply. To ensure electrical safety, a time relay is added at the switching power supply end. When performing cleaning, it is controlled by a timer to be turned on for power supply, so as to realize the cleaning of the cleaning robot;

[0036] When the cleaning robot runs out of power, it is charged. During the charging process, the temperature sensor monitors the battery temperature in real time. When the robot is charging at the parking position and the battery temperature of the cleaning robot is monitored to be lower than 0°C, the heating device is turned on (the temperature sensor feeds back the signal to the circuit board, and the circuit board transmits the signal to the heating controller. The heating controller drives the thermistor built in the heat conduction plate to generate heat, which causes the heat conduction plate to be evenly heated. Since the heat conduction plate is made of metal and can conduct heat, the battery of the robot can be heated and protected). When the battery temperature of the robot is monitored to be higher than 5°C, the heating stops. In summer, when the battery temperature of the robot is monitored to be higher than 55°C, the charging stops to avoid shortening the battery life due to high-temperature charging. When the robot receives a cleaning task and the battery temperature is monitored to be lower than 0°C through the temperature sensor of the robot battery, the battery heating device is turned on. When the temperature is higher than 15°C, the cleaning starts. When the temperature is monitored to be higher than 65°C, the robot does not accept the cleaning task.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery heating device for a photovoltaic cleaning robot in an extremely cold environment, comprising a photovoltaic power station (111), a photovoltaic cleaning robot (2), a photovoltaic panel (21) installed on the photovoltaic cleaning robot, a unit box transformer for self-generation of electricity in the photovoltaic field area, and an external power supply sliding contact wire (3), characterized in that: A battery module, a corresponding temperature sensor, a heating controller, a heat conducting plate and a circuit board are arranged at the bottom of the photovoltaic panel (21), and the battery module, the corresponding temperature sensor, the heating controller, the heat conducting plate and the circuit board are wrapped by an external heat preservation material; A photovoltaic support bracket (112) is fixedly installed at the bottom of the photovoltaic power station (111), and the photovoltaic cleaning robot (2) is arranged on the photovoltaic power station (111); The external power supply sliding contact wire (3) adopts two energized sliding contact rail modes, namely a multi-stage tubular sliding contact wire - 3 poles 6 square (311) and an aluminum alloy profile double guide rail (321).

2. The battery heating device for a photovoltaic cleaning robot in an extremely cold environment according to claim 1, wherein: The battery module is in contact with the heat conducting plate, the temperature sensor is electrically connected with the heating controller, the heat conducting plate is internally provided with thermistors evenly distributed at equal intervals, and the heating controller is electrically connected with the thermistors. The temperature sensor and the heating controller are respectively electrically connected with the circuit board.

3. The battery heating device of a photovoltaic cleaning robot for extremely cold environments according to claim 1, characterized in that: The self-generated power unit box transformer of the photovoltaic field area is used to supply power to the heating controller arranged on each robot. Each robot is equipped with a distribution box, and the 220V power supply provided by the box transformer is converted into a DC 24V safety voltage power supply through a 24V power module.

4. A battery heating device for a photovoltaic cleaning robot in an extremely cold environment according to claim 1, characterized in that: The multi-stage tubular sliding contact wire - 3 poles 6 square (311) is fixed on the longitudinal purlin and the transverse purlin of the photovoltaic support bracket (112) through a hanger (312), and the aluminum alloy profile double guide rail (321) is fixed on the guide rail support purlin (325) arranged on the photovoltaic support bracket (112).

5. A battery heating device for a photovoltaic cleaning robot in an extremely cold environment according to claim 1, characterized in that: A current collector (313) is arranged on the multi-stage tubular sliding contact wire - 3 poles 6 square (311), and a fork (314) is fixedly installed between the current collector (313) and the photovoltaic cleaning robot (2).

6. The battery heating device for a photovoltaic cleaning robot in an extremely cold environment according to claim 1, wherein: A slider (322) is slidably connected to the aluminum alloy profile double guide rail (321). Ear seats (323) are fixedly installed on both the slider (322) and the photovoltaic cleaning robot (2), and a chain (324) is arranged between the ear seats (323).

7. A battery heating device for a photovoltaic cleaning robot in an extremely cold environment according to claim 1, characterized in that: The guide rail end of the external power supply sliding contact wire (3) is connected to a 24V AC-DC switching power supply. To ensure electrical safety, a time relay is added at the switching power supply end. When performing cleaning, it is controlled by a timer to be turned on for power supply.

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