CN211320991U - Battery charging device, solar charger and shared vehicle - Google Patents
Battery charging device, solar charger and shared vehicle Download PDFInfo
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- CN211320991U CN211320991U CN202020327875.3U CN202020327875U CN211320991U CN 211320991 U CN211320991 U CN 211320991U CN 202020327875 U CN202020327875 U CN 202020327875U CN 211320991 U CN211320991 U CN 211320991U
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Abstract
The utility model discloses a battery charging device, a solar charger and a sharing vehicle, which relate to the technical field of batteries and comprise a first charging module, a second charging module, a detection module and a control module; the first charging module is connected with the second charging module in parallel; the detection module is connected with the control module and used for collecting illumination intensity information and transmitting the illumination intensity information to the control module; the control module is respectively connected with the first charging module and the second charging module and is used for controlling the first charging module and the second charging module to be opened and/or closed according to the illumination intensity information. The first charging module comprises a linear charging circuit, and the second charging module comprises a switch charging circuit. Through combining linear charging and the switch two kinds of modes that charge, select different charging methods based on different illumination intensity, choose switch charging method for use when illumination is sufficient, choose linear charging method for use when illumination is not enough, need not to increase solar panel's area and effectively promoted the utilization efficiency of solar energy.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery charging device.
Background
With the rise of new energy, solar energy is widely applied to various industries. In a shared bicycle, solar energy is widely used. Solar energy has the advantages of universality, no regional limitation, no pollution, sustainable utilization and the like, but the energy which can be collected and utilized is very little. In order to improve the utilization rate of solar energy, people often can improve the utilization rate of solar energy by enlarging the area of the solar panel and improving the efficiency of the solar panel. But increasing the area of the solar panel will take up more space and increase the cost. In addition, the efficiency of solar panels is determined by the material, and the materials used by the solar panels developed at present are difficult to make a major breakthrough in efficiency. In order to improve the utilization rate of solar energy in the shared bicycle, measures can be taken from the energy collection mode.
The acquisition mode of the solar energy on the shared bicycle is as follows: after the solar panel collects the energy, the energy is converted into voltage and current, and a small battery in the vehicle lock is charged through the charging IC. If a switch charging IC is selected, large-current charging can be achieved, but the static current of the charging IC is large, when the current ratio is small, most of current can be consumed by the charging IC, and the current charged into the battery is small; if the linear charging IC is selected, the static current of the charging IC is small, the charging of the small current is improved, but the charging current of the linear charging IC is not large and is generally below 1A, the heating is serious, and under the condition of sufficient illumination, more solar energy cannot be collected.
Accordingly, those skilled in the art have made an effort to develop a battery charging apparatus that can combine a switch charging method and a linear charging method to improve charging efficiency and more fully utilize solar energy when charging a battery using solar energy.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the present invention provides a battery charging device, which comprises a first charging module, a second charging module, a detection module and a control module;
the first charging module and the second charging module are connected in parallel;
the detection module is connected with the control module and used for collecting the illumination intensity and transmitting the illumination intensity to the control module;
the control module is respectively connected with the first charging module and the second charging module and used for controlling the opening and/or closing of the first charging module and the second charging module according to the illumination intensity.
Further, when the illumination intensity is greater than a threshold value, the control module turns off the first charging module and turns on the second charging module; when the illumination intensity is less than a threshold, the control module turns off the second charging module and turns on the first charging module.
Furthermore, the first charging module is a linear charging circuit, and the second charging module is a switch charging circuit.
Further, the threshold value is 30W/m2。
Further, the control module comprises a micro control unit.
Furthermore, the charging system further comprises a NOT gate circuit, wherein one end of the NOT gate circuit is connected with the micro control unit, and the other end of the NOT gate circuit is connected with the first charging module or the second charging module.
Further, the detection module includes a light sensor.
The utility model also provides a solar charger, include as above battery charging device.
The utility model discloses an on the other hand still provides a vehicle, includes as above the solar charger.
The utility model provides a battery charging device has following technological effect:
through first module and the second module two kinds of modes that charge, based on different illumination intensity control first module of charging with the second charges opening and/or closing of module, has effectively promoted the utilization efficiency of solar energy, has compensatied among the prior art under the extreme condition (highlight or low light) not enough that charges. Compare and promote solar energy utilization efficiency in increasing solar panel, adopt the utility model discloses a device need not to increase solar panel's area or quantity. When using solar energy in bicycle or vehicle using motor, because the limitation in space, the utility model discloses a battery charging device can need not to occupy more spaces and need not to increase extra cost when promoting solar energy utilization efficiency.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
fig. 2 is a circuit diagram of a preferred embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
Some exemplary embodiments of the invention have been described for illustrative purposes, and it is to be understood that the invention may be practiced otherwise than as specifically described.
As shown in fig. 1, the battery charging device of the present invention includes two parallel-connected charging modules: a first charging module 20 and a second charging module 30, a detection module 40, and a control module 50. The first charging module 20 and the second charging module 30 are both connected to the energy harvesting device 10. The collected energy is converted into electric energy by the energy harvesting device 10, and the battery 60 can be charged when any one of the first and second charging modules 20 and 30 is in an open state. The first charging module 20 and the second charging module 30 have different rated operating parameters, such as different rated currents and different rated voltages. When the electric energy that the energy that collects through energy collection device 10 converted is unstable, the utility model discloses a battery charging device can select suitable module of charging according to energy collection device 10's energy change condition to maximum efficiency charges toward battery 60, thereby promotes the utilization efficiency to the energy. Especially when the energy collecting device 10 is a solar panel, the change of the solar energy can be judged by detecting the change of the illumination intensity of the sun. In order to detect the intensity of solar illumination, a detection module 40 is provided. The detection module 40 is connected to the control module 50 and is configured to collect solar illumination intensity information. The detection module 40 transmits the collected illumination intensity information to the control module 50. The control module 50 is connected to the first charging module 20 and the second charging module 30, and controls one of the two charging modules to be turned on and the other to be turned off according to the illumination intensity information collected by the detection module 40, or controls the two charging modules to be turned on simultaneously, which can be set according to actual needs.
As shown in fig. 2, in the present embodiment, the energy collecting device 10 is a solar panel 11, the solar panel 11 is used for collecting sunlight and further converting the solar energy into electric energy as the energy to be supplied to the battery 60 for charging, and the charging voltage or the charging current converted by the solar energy is also changed at every moment due to the change of the illumination intensity. In the prior art, after the solar panel collects energy, the energy is converted into voltage and current, and the battery is charged through the charging circuit. If a switch charging circuit is selected, large-current charging can be achieved, but the static current of the switch charging circuit is large, when the illumination intensity is low, the current generated by the solar panel is not large, most of the current is consumed by the switch charging circuit after passing through the switch charging circuit, and the current charged into the battery is small; if the linear charging circuit is selected, because the static current of the linear charging circuit is very small, the charging is improved when the illumination intensity is low, but the charging current of the linear charging circuit is not large, the heating is serious, and when the illumination intensity is high, more solar energy can not be collected. The utility model discloses a battery charging device can select suitable module of charging according to the change information of solar illumination intensity to promote the utilization efficiency to solar energy.
According to different characteristics of the switch charging and the linear charging, the second charging module 30 is configured as a switch charging circuit, and the first charging module 20 is configured as a linear charging circuit. The utility model provides a switch charging circuit and linear charging circuit have extensively used in prior art, and any one kind utilizes switch charging circuit or switch charging IC (integrated circuit) of switch charging principle, utilizes linear charging circuit or the linear charging IC of linear charging principle all can use in the device of the utility model discloses an in, no longer repeated here. As shown in fig. 2, in the present embodiment, the first charging module 20 is a linear charging IC21, and the second charging module 30 is a switch charging IC 31.
The battery 60 is charged by a solar panel, and the detecting module 40 is used for detecting the change of the illumination intensity, as shown in fig. 2, in this embodiment, the detecting module 40 is a light sensor 41, and the light sensor 41 is electrically connected to the control module 50. According to different light intensities, the control module 50 may control the on and off of the linear charging IC21 and the switch charging IC31, so as to switch between different charging modes. An illumination intensity threshold value can be preset in the control module 50 according to actual needs, and when the illumination intensity is greater than the threshold value, the control module 50 closes the linear charging IC21 and opens the switch charging IC 31; conversely, when the illumination intensity is less than the threshold, the control module 50 turns on the linear charging IC21 and turns off the switch charging IC 31. The light sensor 41 may be any one of the prior art components for detecting light intensity variation, such as a light-sensitive resistor, a photocurrent measuring circuit, a light sensor, etc. In the bookIn the example, the photosensor 41 illuminates the photosensor with a threshold of 30W/m2。
The control module 50 may be any kind of control chip, as shown in fig. 2, in this embodiment, the control module 50 is a Micro Control Unit (MCU) 51.
In some embodiments, the micro control unit 51 is connected to the linear charging IC21 and the switch charging IC31 through GPIO terminals (general purpose input/output ports), respectively. GPIO terminals of the micro control unit 51 are connected to the EN1 terminal (enable terminal 1) of the linear charging IC21 and the EN2 terminal of the switching charging IC31, respectively. Meanwhile, in order to enable the signal output by the GPIO terminal to achieve the effect of simultaneously controlling the linear charging IC21 and the switch charging IC31 to be in opposite working states, a not gate circuit may be disposed between the linear charging IC21 and the GPIO, or as shown in fig. 2, a not gate circuit U1 is disposed between the switch charging IC31 and the GPIO; either of these two ways can be selected according to actual needs. In the present embodiment, an inverter circuit U1 is provided between the switch charging IC31 and the GPIO. The inverter circuit U1 used herein may be any inverter circuit or inverter IC (integrated circuit) known in the art.
An illumination intensity threshold, preferably 30W/m, is preset in the micro control unit 512Also, different threshold values can be set according to actual size, the utility model discloses a protection scope is not limited to 30W/m only2The threshold value of (2). When the intensity of the light collected by the light sensor 41 is less than 30W/m2Meanwhile, the GPIO of the micro control unit 51 controls the linear charging IC21 to be turned on, and simultaneously, the signal output by the GPIO passes through the not gate circuit U1, the level is turned over, and the switch charging IC31 is turned off, at this time, the battery 60 is charged in a linear charging manner; when the intensity of the light collected by the light sensor 41 is more than 30W/m2The GPIO of the micro control unit 51 controls the linear charging IC21 to turn off, and at the same time, the signal output by the GPIO passes through the not gate circuit U1, the level is inverted, and the switch charging IC31 is turned on, at this time, the battery 60 is charged in a switch charging manner.
In some embodiments, the linear charging IC21 and the switch charging IC31 may also be connected to different ports of the micro control unit 51, and different level signals may be output by the micro control unit 51 at the port connected to the linear charging IC21 and the port connected to the switch charging IC31, respectively, so as to control the linear charging IC21 and the switch charging IC31 to be turned on and/or off.
The utility model discloses a battery charging device's theory of operation does:
a double-charging circuit structure with parallel linear charging and switch charging is adopted, and the light intensity information is collected through the light sensor 41. When the light sensor 41 detects weak light, such as in the morning or at the evening, the light intensity is 30W/m2In the following, the micro control unit 51 controls the charged GPIO to output a low level to turn on the linear charging IC21, and at the same time, the GPIO is inverted to a high level through a not gate circuit U1 to turn off the switch of the charging IC31, so as to charge the battery 60 in a linear charging manner. When the illumination is sufficient, for example, the illumination intensity is more than 30W/m2When the charging is performed, the micro control unit 51 controls the charging GPIO to output a high level, the linear charging IC21 is turned off, the GPIO is inverted to a low level through the not gate circuit U1, the switch charging IC31 is turned on, and the battery 60 is charged by using the high-current charging characteristic of the switch charging mode. At the same time, the battery 60 supplies power to the light sensor 41 and the micro control unit 51, ensuring its normal operation.
The utility model discloses a battery charging device can use at the shared vehicle, like shared bicycle or shared vehicle using motor etc.. The core control device of shared vehicle, like the intelligence lock, need consume the electric quantity, and the shared vehicle is located outdoors for a long time, generally adopts solar panel to charge the battery to guarantee that it lasts the operation, reduce the operation cost. However, the solar panel cannot be enlarged in area due to the space limitation of the shared vehicle, thereby improving the utilization efficiency of solar energy. Use in sharing vehicle the utility model discloses a battery charging device can effectively promote sharing vehicle's charge efficiency, and need not enlarge the solar panel area, both practices thrift the space, also practices thrift the cost. The utility model discloses a battery charging device not only restricts to use in sharing vehicle, other scenes that need use solar energy, like street lamp, outdoor monitoring device etc. all can use the utility model discloses a battery charging device.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A battery charging device is characterized by comprising a first charging module, a second charging module, a detection module and a control module;
the first charging module and the second charging module are connected in parallel;
the detection module is connected with the control module and used for collecting the illumination intensity and transmitting the illumination intensity to the control module;
the control module is respectively connected with the first charging module and the second charging module and used for controlling the opening and/or closing of the first charging module and the second charging module according to the illumination intensity.
2. The battery charging apparatus of claim 1, wherein the control module turns off the first charging module and turns on the second charging module when the illumination intensity is greater than a threshold; when the illumination intensity is less than a threshold, the control module turns off the second charging module and turns on the first charging module.
3. The battery charging apparatus of claim 2, wherein the first charging module is a linear charging circuit and the second charging module is a switched charging circuit.
4. The battery charging apparatus of claim 2, wherein the threshold is 30W/m2。
5. The battery charging apparatus of claim 1, wherein the control module comprises a micro-control unit.
6. The battery charging apparatus of claim 5, further comprising a not circuit having one end connected to the micro control unit and another end connected to the first charging module or the second charging module.
7. The battery charging apparatus of claim 1, wherein the detection module comprises a light sensor.
8. A solar charger comprising a battery charging device according to any of claims 1-7, a solar panel and a battery.
9. A shared vehicle comprising the solar charger of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020327875.3U CN211320991U (en) | 2020-03-16 | 2020-03-16 | Battery charging device, solar charger and shared vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020327875.3U CN211320991U (en) | 2020-03-16 | 2020-03-16 | Battery charging device, solar charger and shared vehicle |
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| CN211320991U true CN211320991U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667505A (en) * | 2023-08-01 | 2023-08-29 | 深圳市微源半导体股份有限公司 | Charging control method, device and system and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667505A (en) * | 2023-08-01 | 2023-08-29 | 深圳市微源半导体股份有限公司 | Charging control method, device and system and electronic equipment |
| CN116667505B (en) * | 2023-08-01 | 2024-03-12 | 深圳市微源半导体股份有限公司 | Charging control method, device and system and electronic equipment |
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