CN216451295U

CN216451295U - Portable energy storage power supply circuit

Info

Publication number: CN216451295U
Application number: CN202122798091.6U
Authority: CN
Inventors: 陈聪鹏; 张智超; 王刚; 王志军
Original assignee: Xiamen Haisuo Technology Co ltd
Current assignee: Xiamen Haisuo Technology Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-05-06
Anticipated expiration: 2031-11-16

Abstract

The utility model relates to the field of power supplies, in particular to a portable energy storage power supply circuit. The utility model discloses a portable energy storage power supply circuit which comprises a DC/DC booster circuit, an inverter circuit, a processor, an output voltage setting circuit and an output frequency setting circuit, wherein the input end of the DC/DC booster circuit is used for being connected with a battery, the output end of the DC/DC booster circuit is connected with the input end of the inverter circuit, the output ends of the output voltage setting circuit and the output frequency setting circuit are respectively connected with the input end of the processor, and the processor is used for correspondingly driving a switching tube of the inverter circuit according to input signals of the output voltage setting circuit and the output frequency setting circuit. The output voltage and frequency of the utility model can be adjusted, the applicability is good, the utility model can be adapted to electric equipment in different countries, the use is convenient, and the user experience is improved.

Description

Portable energy storage power supply circuit

Technical Field

The utility model belongs to the field of power supplies, and particularly relates to a portable energy storage power supply circuit.

Background

The portable energy storage power supply can provide power for users in occasions inconvenient to be connected with commercial power or without commercial power, is convenient for the users to use electronic equipment, and is increasingly and widely applied to occasions such as outdoor travel, earthquake resistance, disaster prevention and the like.

The traditional portable energy storage power supply comprises a DC/DC booster circuit, an inverter circuit, a filter circuit and the like, wherein the battery voltage (12V/24V/48V) is boosted through the DC/DC booster circuit, inverted through the inverter circuit and filtered into sine waves through the filter circuit to be output to an electric load for supplying power. The traditional portable energy storage power supply can only realize the output of 110V voltage or 230V voltage, the frequency can only be 50Hz or 60Hz, the unavailable condition exists when one machine is taken to different countries, the applicability is poor, and the user experience is reduced.

Disclosure of Invention

The present invention is directed to a portable energy storage power circuit for solving the above-mentioned problems.

In order to achieve the purpose, the utility model adopts the technical scheme that: a portable energy storage power supply circuit comprises a DC/DC booster circuit, an inverter circuit, a processor, an output voltage setting circuit and an output frequency setting circuit, wherein the input end of the DC/DC booster circuit is used for being connected with a battery, the output end of the DC/DC booster circuit is connected with the input end of the inverter circuit, the output ends of the output voltage setting circuit and the output frequency setting circuit are respectively connected with the input end of the processor, and the processor is used for correspondingly driving a switching tube of the inverter circuit according to input signals of the output voltage setting circuit and the output frequency setting circuit.

Further, the output voltage setting circuit is an output voltage gear selection circuit.

Furthermore, the output voltage gear selection circuit comprises a 110V gear and a 230V gear.

Furthermore, the output voltage gear selection circuit is realized by a dial switch.

Further, the output frequency setting circuit is an output frequency step selection circuit.

Further, the output frequency step selection circuit comprises a 50Hz step and a 60Hz step.

Furthermore, the output frequency gear selection circuit is realized by a dial switch.

Further, the inverter circuit is a full-bridge inverter circuit.

Furthermore, the DC/DC booster circuit comprises a push-pull booster circuit and a rectifying circuit, wherein the input end of the push-pull booster circuit is connected with a battery, the output end of the push-pull booster circuit is connected with the input end of the rectifying circuit, a switching tube of the push-pull booster circuit is driven and controlled by a processor, and the output end of the rectifying circuit is connected with the input end of the inverter circuit.

Further, the rectifier circuit is a full bridge rectifier circuit.

The utility model has the beneficial technical effects that:

the voltage and frequency output by the utility model can be adjusted, the applicability is good, the utility model can be adapted to electric equipment of different countries, the use is convenient, the user experience is improved, and the circuit structure is simple and easy to realize.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a block diagram of a circuit configuration according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of an embodiment of the present invention.

Detailed Description

To further illustrate the various embodiments, the utility model provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The utility model will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, a portable energy storage power supply circuit includes a DC/DC boost circuit 1, an inverter circuit 2, a processor 3, an output voltage setting circuit 4, and an output frequency setting circuit 5, where an input terminal of the DC/DC boost circuit 1 is used to connect to a battery 6, and the battery 6 may be a battery of various existing portable energy storage power supplies, such as a lithium battery, and may be 12V, 24V, or 48V, and specifically, reference may be made to the prior art, which is not described in detail herein.

The output end of the DC/DC booster circuit 1 is connected with the input end of the inverter circuit 2, the output ends of the output voltage setting circuit 4 and the output frequency setting circuit 5 are respectively connected with the input end of the processor 3, and the processor 3 is used for correspondingly driving the switching tube of the inverter circuit 2 according to the input signals of the output voltage setting circuit 4 and the output frequency setting circuit 5 so as to output corresponding voltage and frequency.

In this embodiment, the processor 3 is implemented by using the single chip microcomputer IC6, and has a simple structure, easy implementation, and low cost, but not limited thereto.

In this embodiment, the DC/DC boost circuit 1 includes a push-pull boost circuit and a rectifying circuit, an input end of the push-pull boost circuit is used for connecting with the battery 6, an output end of the push-pull boost circuit is connected with an input end of the rectifying circuit, switching tubes Q15 and Q16 of the push-pull boost circuit are driven and controlled by a single chip IC6, and an output end of the rectifying circuit is connected with an input end of the inverter circuit 2. The push-pull booster circuit is simple in circuit structure, the number of the switching tubes is small, the occupied PCB space is small, but the push-pull booster circuit is not limited to the circuit structure, and in some embodiments, the push-pull booster circuit can be realized by other existing DC/DC booster circuits.

In this embodiment, the switching transistors Q15 and Q16 are implemented by MOS transistors, which are easy to implement, have low loss and high reliability, but are not limited thereto. The rectifier circuit is a full-bridge rectifier circuit BD1, which has good rectification effect and less loss, but not limited to this, and in some embodiments, the rectifier circuit may be implemented by another existing rectifier circuit. The specific circuit of the DC/DC boost circuit 1 can be seen in detail in fig. 2, which is not described in detail.

In this embodiment, the inverter circuit 2 is preferably a full-bridge inverter circuit, and the inverter effect is good, but not limited thereto.

Specifically, in the present embodiment, the inverter circuit 2 is formed by 4 IGBT transistors Q1 to Q4, and has advantages such as low driving power and low saturation voltage, but the present invention is not limited thereto, and in some embodiments, the inverter circuit 2 may be formed by a switching transistor such as a MOS transistor. The 4 IGBT transistors Q1-Q4 are respectively driven and controlled by a single chip IC6, and the detailed circuit connection is shown in fig. 2, which is not described in detail.

In this embodiment, the output voltage setting circuit 4 is an output voltage step selection circuit, which is easy to implement, and the output voltage setting is convenient, but not limited thereto, and in some embodiments, it may also be other existing setting circuits, such as a key circuit.

In this specific embodiment, the output voltage step selection circuit includes a 110V step and a 230V step, and is suitable for the electric equipment in most countries, but not limited thereto.

Preferably, in this embodiment, the output voltage gear selection circuit is implemented by using a dial switch, and the circuit has a simple structure, is easy to implement, and is convenient to use, but not limited thereto.

In this embodiment, the output frequency setting circuit 5 is an output frequency step selection circuit, which is easy to implement, and the output frequency setting is convenient, but not limited thereto, and in some embodiments, it may also be other existing setting circuits, such as a key circuit.

In this specific embodiment, the output frequency gear selection circuit includes 50Hz gears and 60Hz gears, and is suitable for electric equipment in most countries, but not limited thereto.

Preferably, in this embodiment, the output frequency gear selection circuit is implemented by using a dial switch, and the circuit has a simple structure, is easy to implement, and is convenient to use, but not limited thereto.

Further, in this embodiment, the output voltage setting circuit 4 and the output frequency setting circuit 5 are implemented by a dial switch SW1, and the specific circuit connection is as shown in fig. 2, so that the number of components is reduced, and the circuit is simpler, smaller, and lower in cost, but not limited thereto.

The working principle is as follows:

the DC/DC booster circuit 1 boosts the voltage of the battery 6 to be more than 230V, and when the output voltage setting circuit 4 is shifted to a 230V gear, the processor 3 correspondingly controls the duty ratios of IGBT tubes Q1-Q4 so that the output alternating voltage is 230V; when the output voltage setting circuit 4 is shifted to a 110V gear, the processor 3 correspondingly halves the duty ratio of the IGBT tubes Q1-Q4, so that the output alternating voltage is 110V; when the output frequency setting circuit 5 is shifted to 50Hz, the processor 3 correspondingly controls the driving frequency of the IGBT tubes Q1-Q4, so that the output alternating current frequency is 50 Hz; when 60HZ gear is dialled to output frequency setting circuit 5, treater 3 increases IGBT pipe Q1-Q4's drive frequency correspondingly for the alternating current frequency of output is 60HZ, thereby has realized that the voltage size and the frequency size of output can be adjusted, and the suitability is good, can adapt to the consumer in different countries, and it is convenient to use, promotes user experience, and circuit structure is simple, easily realizes.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A portable energy storage power supply circuit, characterized by: the power supply comprises a DC/DC booster circuit, an inverter circuit, a processor, an output voltage setting circuit and an output frequency setting circuit, wherein the input end of the DC/DC booster circuit is used for being connected with a battery, the output end of the DC/DC booster circuit is connected with the input end of the inverter circuit, the output ends of the output voltage setting circuit and the output frequency setting circuit are respectively connected with the input end of the processor, and the processor is used for correspondingly driving a switching tube of the inverter circuit according to input signals of the output voltage setting circuit and the output frequency setting circuit.

2. The portable tank power supply circuit of claim 1, wherein: the output voltage setting circuit is an output voltage gear selection circuit.

3. The portable tank power supply circuit of claim 2, wherein: the output voltage gear selection circuit comprises a 110V gear and a 230V gear.

4. The portable power storage circuit of claim 3, wherein: the output voltage gear selection circuit is realized by adopting a dial switch.

5. The portable power storage circuit of any of claims 2-4, wherein: the output frequency setting circuit is an output frequency gear selection circuit.

6. The portable power storage circuit of claim 5, wherein: the output frequency gear selection circuit comprises a 50Hz gear and a 60Hz gear.

7. The portable power storage circuit of claim 6, wherein: the output frequency gear selection circuit is realized by adopting a dial switch.

8. The portable tank power supply circuit of claim 1, wherein: the inverter circuit is a full-bridge inverter circuit.

9. The portable tank power supply circuit of claim 1, wherein: the DC/DC booster circuit comprises a push-pull booster circuit and a rectifying circuit, wherein the input end of the push-pull booster circuit is used for being connected with a battery, the output end of the push-pull booster circuit is connected with the input end of the rectifying circuit, a switching tube of the push-pull booster circuit is driven and controlled by a processor, and the output end of the rectifying circuit is connected with the input end of an inverter circuit.

10. The portable power storage circuit of claim 9, wherein: the rectification circuit is a full-bridge rectification circuit.