Power supply module and electric equipment

Abstract

The utility model provides a power supply module and electric equipment, and the power supply module comprises a battery pack, a protection plate, a DC / DC boost adjustable unit, and a charging interface. The battery pack, the DC / DC boost adjustable unit and the protection plate are sequentially connected in series in the current direction, the charging interface is electrically connected between the positive electrode of the battery pack and the protection plate, and the DC / DC boost adjustable unit is provided with an output interface externally connected with a load. The power supply module provided by the utility model can be connected with the existing power supply, stabilizes the voltage of the existing power supply when the electric quantity of the existing power supply is reduced, and can stabilize the output voltage by cooperating with the original power supply, thereby ensuring the normal use of electric equipment; when voltage stabilization is carried out on original power supplies of different voltage platforms, the DC / DC boost adjustable unit can be adjusted to adapt to the original power supplies, so that the power supply module can carry out voltage stabilization on the original power supplies of the different voltage platforms, and electric equipment can obtain relatively stable voltage.

Description

Technical Field

[0001] The utility model relates to the technical field of power supplies, and particularly to a power supply module. The utility model also relates to an electrical equipment equipped with the above power supply module. Background Art

[0002] The current stock of two-wheeled electric vehicles in China is huge. The battery types used mainly include lead-acid, lithium iron phosphate or ternary lithium batteries. The voltage platforms applied by two-wheeled electric vehicles are various, mainly including 24V, 36V, 48V, 60V, 72V, etc. According to the specific configuration of the battery, the driving range of electric vehicles generally varies. Most electric vehicles have a driving range within 80 km, and most of them are lead-acid batteries. In an electric vehicle, the maximum current controlled by the motor controller is certain. However, as the battery voltage decreases, the driving speed of the electric vehicle will continuously decrease, resulting in poor use quality of the electric vehicle.

[0003] In view of the above problems, some manufacturers on the market have developed range extender batteries suitable for electric vehicles. By setting the range extender battery, it can ensure voltage stability when the power of the original battery of the electric vehicle decreases, enabling the electric vehicle to maintain its driving speed and improving the use quality and endurance mileage of the electric vehicle. However, the existing electric vehicle range extender batteries usually have a certain output voltage and can only be adapted to electric vehicles with the same voltage platform, resulting in poor versatility of the electric vehicle range extender batteries. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a power supply module to be adapted to a variety of different voltage platforms for use.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A power supply module includes a battery pack, a protection board, a DC / DC boost adjustable unit and a charging interface;

[0007] The battery pack, the DC / DC boost adjustable unit and the protection board are connected in series in sequence along the current direction. The charging interface is electrically connected between the positive electrode of the battery pack and the protection board. The DC / DC boost adjustable unit is provided with an output interface for an external load.

[0008] Further, a DC / AC unit is electrically connected between the positive electrode of the battery pack and the protection board, and the DC / AC unit is provided with a mains power supply interface.

[0009] Further, a DC / DC buck unit is electrically connected between the positive electrode of the battery pack and the protection board, and the DC / DC buck unit is provided with a USB power supply interface.

[0010] Further, the DC / DC boost adjustable unit is equipped with a voltage regulation panel.

[0011] Further, the protection board is provided with a sampling wiring harness, and the sampling wiring harness can collect information at both poles of each battery cell in the battery pack.

[0012] Further, the power supply module includes a power generation unit, and the power generation unit includes a first switch, a power generation device, and a charging adapter cable;

[0013] The first switch is arranged on the path between the input end of the DC / DC boost adjustable unit and the battery pack, the charging adapter cable is detachably connected between the charging interface and the output end of the DC / DC boost adjustable unit, and the power generation device is electrically connected to the input end of the DC / DC boost adjustable unit;

[0014] The power generation device can control the first switch to disconnect to cut off the connection between the battery pack and the DC / DC boost adjustable unit, and the DC / DC boost adjustable unit can output a constant voltage after collecting the enable signal sent by the power generation device to form charging of the battery pack by the power generation unit.

[0015] Further, the power generation device includes a power generation component and a power generation connector;

[0016] The power generation connector is electrically connected to the input end of the DC / DC boost adjustable unit, and the power generation component is detachably connected to the power generation connector.

[0017] Further, the power generation component is a solar power generation component.

[0018] Further, the first switch is a five-pin relay.

[0019] Compared with the prior art, the present utility model has the following advantages:

[0020] The power supply module of the present utility model can be connected to an existing power supply, stabilize the voltage when the power of the existing power supply decreases, and the power supply module can cooperate with the original power supply to stably output voltage to ensure the normal use of the electrical equipment; when stabilizing the voltage of the original power supply with different voltage platforms, the DC / DC boost adjustable unit can be adjusted to adapt to the original power supply, so that when the power supply module can stabilize the voltage of the original power supply with different voltage platforms, the electrical equipment can obtain a relatively stable voltage.

[0021] Secondly, a DC / AC unit is provided on the power supply module, and 220V mains electricity is provided through the power supply interface of the DC / AC unit, which can enrich the functions of the battery module and enable the battery module to supply power to mains electricity appliances. A DC / DC buck unit is provided on the power supply module, and low-voltage direct current is provided through the USB interface of the DC / DC buck unit, which can enrich the functions of the battery module and enable the battery module to supply power to appliances with a USB interface. A voltage regulation panel is provided on the DC / DC boost adjustable unit, which can facilitate the user to adjust the output voltage of the DC / DC boost adjustable unit.

[0022] Furthermore, the sampling cable on the protection board can collect information on each battery cell to monitor the usage of the battery cell. The power generation unit is provided to supply additional power to the battery pack, so that the power supply module can also charge the battery pack through the power generation device in an environment without a charging device, making the power supply module more adaptable to the environment. The power generation component is detachably connected and can be removed and stored when not in use, reducing the overall size of the power supply module. Using a solar power generation component can generate electricity when there is sunlight outdoors. Solar energy is easily accessible, clean and pollution-free. The five-pin relay is a common circuit component, and using a five-pin relay can achieve automatic control of the circuit.

[0023] Another object of the present invention is to provide an electrical device equipped with the power supply module as described above.

[0024] The electrical device described in the present invention using the power supply module as described above has the same beneficial effects as the prior art and will not be elaborated here. Description of the Drawings

[0025] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 is the schematic diagram of the power supply module according to Embodiment 1 of the present invention;

[0027] Figure 2 is the schematic diagram of the power supply module according to Embodiment 1 of the present invention after adding a power generation unit.

[0028] Description of the Reference Numerals in the Drawings:

[0029] 1. Battery pack;

[0030] 101. Battery cell;

[0031] 2. Protection board;

[0032] 201. Sampling cable;

[0033] 3. DC / DC Boost Adjustable Unit;

[0034] 301. Output Interface; 302. Voltage Regulation Panel;

[0035] 4. Charging Interface;

[0036] 5. DC / AC Unit;

[0037] 501. Mains Power Supply Interface;

[0038] 6. DC / DC Buck Unit;

[0039] 601. USB Power Supply Interface;

[0040] 7. Power Generation Unit;

[0041] 701. First Switch; 702. Power Generation Device; 7021. Power Generation Component; 7022. Power Generation Connector; 703. Charging Adapter Cable;

[0042] 8. Charger;

[0043] 9. Second Switch. Detailed Embodiment

[0044] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0045] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0046] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0047] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0048] Embodiment 1

[0049] This embodiment relates to a power supply module, which is adapted to be used with a variety of different voltage platforms.

[0050] In terms of the overall structure, a power supply module in this embodiment includes a battery pack, a protection board, a DC / DC boost adjustable unit, and a charging interface.

[0051] The battery pack, the DC / DC boost adjustable unit, and the protection board are connected in series in sequence along the current direction. The charging interface is electrically connected between the positive electrode of the battery pack and the protection board. The DC / DC boost adjustable unit is provided with an output interface for an external load.

[0052] With the above settings, the power supply module of this embodiment can connect to the existing power supply on the electrical device through the output interface, stabilize the voltage when the power of the existing power supply decreases, and the power supply module can cooperate with the original power supply to stably output voltage, ensuring the normal use of the electrical device. When stabilizing the original power supply of different voltage platforms, the DC / DC boost adjustable unit can be adjusted to adapt to the original power supply, so that the power supply module can stabilize the original power supply of different voltage platforms, enabling the electrical device to obtain a relatively stable voltage.

[0053] Based on the above overall introduction, referring to Figure 1 As shown, specifically, the output interface 301 is connected to an external load. A second switch 9 is provided on the circuit between the positive electrode of the battery pack 1 and the DC / DC boost adjustable unit 3, which is used to control the on or off of the overall circuit of the power supply module. Exemplarily, the battery pack 1 in this embodiment is composed of eight series-connected 24V lithium iron phosphate battery monomers 101 in series. The DC / DC boost adjustable unit 3 uses a common 10V - 32V to 11V - 85V module on the market, which can adjust the voltage to any value within 11V - 85V, and the voltage adjustment step is 0.1V. Of course, it is also possible to use ternary lithium batteries, lead-acid batteries, etc. for the battery pack 1, and the DC / DC boost adjustable unit 3 can also be selected according to actual needs.

[0054] Among them, in order to more intuitively obtain the voltage value of the DC / DC boost adjustable unit 3, the DC / DC boost adjustable unit 3 is equipped with a voltage adjustment panel 302. The voltage adjustment panel 302 can display information such as the input voltage and current of the current battery pack 1 and the output voltage and current of the DC / DC boost adjustable unit 3. The operator can directly adjust the output voltage of the DC / DC boost adjustable unit 3 through the voltage adjustment panel 302 to adapt to the external load.

[0055] In addition, to enrich the usage scenarios of the battery module, a DC / AC unit 5 is electrically connected between the positive electrode of the battery pack 1 and the protection board 2 of this embodiment. The DC / AC unit 5 is provided with a mains power supply interface 501. The power supply module of this embodiment can also be used as a portable energy source in outdoor activities, such as in scenarios like field exploration and family camping. These scenarios may all use mains-powered electrical appliances. Therefore, by setting up the DC / AC unit 5 on the power supply module and providing 220V mains power through the power supply interface of the DC / AC unit 5, the functions of the battery module can be enriched, enabling the battery module to supply power to mains-powered electrical appliances and meeting people's needs for outdoor power usage.

[0056] As a further enrichment of the functions of the battery module, a DC / DC buck unit 6 is electrically connected between the positive electrode of the battery pack 1 and the protection board 2. The DC / DC buck unit 6 is provided with a USB (Universal Serial Bus) power supply interface. When the power supply module of this embodiment is used as a portable power source, it can supply power to devices with a USB interface, such as charging electronic devices like mobile phones and smart watches, providing convenience to users. The USB power supply interface 601 of this embodiment outputs 5V and adopts the type-A form. Of course, it is also possible for the USB power supply interface 601 to provide other voltages and adopt structural forms such as type-B and type-C.

[0057] For the purpose of better protecting the battery pack 1, the protection board 2 is provided with a sampling cable 201. The sampling cable 201 can collect information at both poles of each battery cell 101 in the battery pack 1. The information collected is mainly voltage and temperature. By collecting the voltage and temperature information of each node in the battery pack 1, the protection board 2 can monitor the battery pack 1. When the battery pack 1 shows abnormalities, the protection board 2 can protect the battery pack 1 by means such as cutting off the discharge circuit, reducing the current output, and giving an alarm prompt.

[0058] The charging interface 4 of this embodiment can be directly connected to a charger 8 for charging. The power supply module is charged using a mains-powered charger 8. However, this method limits the power supply module to being charged only in areas covered by the mains power supply, which is restricted in outdoor use. Therefore, the power supply module of this embodiment can also add additional charging methods.

[0059] Specifically, refer to Figure 2As shown in the figure, the power supply module includes a power generation unit 7, and the power generation unit 7 includes a first switch 701, a power generation device 702, and a charging adapter cable 703. The first switch 701 is disposed on the path between the input end of the DC / DC boost adjustable unit 3 and the battery pack 1. The charging adapter cable 703 is detachably connected between the charging interface 4 and the output end of the DC / DC boost adjustable unit 3. The power generation device 702 is electrically connected to the input end of the DC / DC boost adjustable unit 3. The power generation device 702 can control the first switch 701 to disconnect, so as to cut off the connection between the battery pack 1 and the DC / DC boost adjustable unit 3. The DC / DC boost adjustable unit 3 can output a constant voltage after collecting the enable signal sent by the power generation device 702, so as to constitute the charging of the battery pack 1 by the power generation unit 7.

[0060] Through the above settings, the power generation unit 7 can supply additional power to the battery pack 1, so that the power supply module can also charge the battery pack 1 through the power generation device in an environment without a charging device, making the environment adaptability of the power supply module stronger. In this embodiment, the maximum charging voltage of the eight-series 24V lithium iron phosphate battery pack 1 is 29.2V. When the power generation device 702 controls the first switch 701 to disconnect, the DC / DC boost adjustable unit 3 outputs a stable voltage of 29.2V after collecting the constant voltage enable signal sent by the power generation device 702, so that the DC / DC boost adjustable unit 3 charges the battery pack 1 through the charging interface 4. This is convenient and efficient, and the structure layout is simple.

[0061] Among them, the power generation device 702 includes a power generation component 7021 and a power generation connector 7022. The power generation connector 7022 is electrically connected to the input end of the DC / DC boost adjustable unit 3, and the power generation component 7021 is detachably connected to the power generation connector 7022. By detachably arranging the power generation component 7021 and the power generation connector 7022, when it is not necessary to generate electricity and charge the battery pack 1, the power generation component 7021 can be removed, reducing the volume of the power supply module, reducing the space occupation and weight of the power supply module, and facilitating use.

[0062] As a preferred implementation manner, the power generation component 7021 is a solar power generation component 7021. Solar energy is easily obtained. As long as there is sufficient sunlight, the power generation component 7021 can be used for solar power generation. At the same time, solar power generation is clean and pollution-free, which also conforms to people's environmental protection concept. For example, during outdoor activities, it is very likely that it is difficult to find a power source providing commercial power. At this time, the solar power generation component 7021 can be connected to the power generation connector 7022, convert solar energy into electrical energy, and charge the battery pack 1 after boosting the voltage through the DC / DC boost adjustable unit 3. In this embodiment, the solar power generation component 7021 adopts the principle of photovoltaic power generation and has a high power generation efficiency.

[0063] It should be noted that the power generation component 7021 can also be a wind turbine generator, a human-powered generator, a fuel generator, etc. The specific form selection can be determined according to the usage environment of the power supply module to select a more suitable type of power generation component 7021.

[0064] Regarding the specific type selection of the first switch 701, in this embodiment, the first switch 701 is a five-pin relay. The five-pin relay is a common circuit element, and using a five-pin relay can achieve automatic control of the circuit. The two coil pins of the five-pin relay are connected to the positive and negative output terminals of the power generation connector 7022, and the three contact pins are respectively arranged at the positive input terminal of the DC / DC boost adjustable unit 3, the positive output terminal of the power generation connector 7022, and the positive terminal of the battery pack 1. The contact pin at the positive input terminal of the DC / DC boost adjustable unit 3 and the contact pin at the positive terminal of the battery pack 1 are normally closed.

[0065] During specific implementation, when the power generation component 7021 is connected to the power generation connector 7022 and conducts electricity, the two coil pins are energized, the positive input terminal pin of the DC / DC boost adjustable unit 3 and the positive output terminal pin of the power generation connector 7022 are closed, the power generation unit 7 supplies power to the DC / DC boost adjustable unit 3, and the DC / DC boost adjustable unit 3 supplies power to the charging interface 4 through the charging transfer wire 703, realizing the charging of the battery pack 1 by the power generation unit 7.

[0066] In this embodiment, by setting the DC / DC boost adjustable unit 3, it can stabilize the voltage when the existing power supply power decreases and can adapt to different voltage platforms. The power supply module can cooperate with the original power supply to stably output voltage, ensuring the normal use of electrical equipment. At the same time, functions such as 220V AC output and 5V USB output can also be realized, enriching the usage scenarios of the power supply module. Secondly, the power supply module can also be charged through the power generation unit 7, enabling the power supply module to supplement electrical energy even without charging power facilities.

[0067] Embodiment 2

[0068] This embodiment relates to an electrical device, and the power supply module in Embodiment 1 is provided on the electrical device. Specifically, the electrical device can be an emergency power supply, a power tool, a mobile phone charging device, an electric vehicle, etc. The power supply module in Embodiment 1 can provide direct current of 11V to 85V, direct current of 5V, and alternating current of 220V, and the above-mentioned different power consumption requirements of the devices can be realized by using the power supply module in Embodiment 1.

[0069] Taking the case where the electrical equipment is an electric vehicle as an example, by using the power supply module in the first embodiment, the effect of assisting its original battery to increase the vehicle range can be achieved, and the driving range of the vehicle can be improved. When the power of the original battery of the vehicle is relatively low, through the auxiliary voltage stabilization of the power supply module, the motor of the vehicle can also obtain a relatively stable voltage, maintain the driving speed of the vehicle, and improve the use quality of the vehicle. When the vehicle in this embodiment is driving outdoors, electrical energy can be supplemented through solar energy, enabling the vehicle to obtain more driving range and improving the use quality of the vehicle.

[0070] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A power module, characterized in that: include: Battery pack, protection board, DC / DC boost adjustable unit and charging interface; The battery pack, the DC / DC adjustable boost unit and the protection board are sequentially connected in series along the current direction, the charging interface is electrically connected between the positive electrode of the battery pack and the protection board, and the DC / DC adjustable boost unit is provided with an output interface for an external load.

2. The power module according to claim 1, characterized in that: A DC / AC unit is electrically connected between the positive electrode of the battery pack and the protection board, and the DC / AC unit is provided with a mains power supply interface.

3. The power module according to claim 1, characterized in that: A DC / DC step-down unit is electrically connected between the positive electrode of the battery pack and the protection board, and the DC / DC step-down unit is provided with a USB power supply interface.

4. The power module according to claim 1, characterized in that: The DC / DC voltage-adjustable step-up unit is equipped with a voltage-adjusting panel.

5. The power module according to claim 1, characterized in that: The protection board is provided with a sampling cable, and the sampling cable can collect information at the two poles of each battery cell in the battery pack.

6. The power module according to any one of claims 1 to 5, characterized in that: The power module includes a power generation unit, and the power generation unit includes a first switch, a power generation device and a charging adapter; The first switch is arranged on the path between the input end of the DC / DC boost adjustable unit and the battery pack, the charging adapter is detachably connected between the charging interface and the output end of the DC / DC boost adjustable unit, and the power generation device is electrically connected to the input end of the DC / DC boost adjustable unit; The power generation device can control the first switch to be disconnected to cut off the connection between the battery pack and the DC / DC boost adjustable unit. The DC / DC boost adjustable unit can output a constant voltage after collecting the enable signal sent by the power generation device to constitute the power generation unit charging the battery pack.

7. The power module according to claim 6, characterized in that: The power generation device comprises a power generation component and a power generation connector; The power generation connector is electrically connected to the input end of the DC / DC voltage-boosting adjustable unit, and the power generation component is detachably connected to the power generation connector.

8. The power module according to claim 7, characterized in that: The power generation component is a solar power generation component.

9. The power module according to claim 6, characterized in that: The first switch is a five-pin relay.

10. An electrical equipment, characterized in that: The electric device is equipped with a power module according to any one of claims 1 to 9.

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