CN207504594U - A multi-purpose mobile power supply capable of outputting AC and DC - Google Patents

Abstract

The utility model discloses an exportable multipurpose portable power source of exchanging and direct current, including battery pack and control assembly, battery pack is equipped with direct current output port and exchanges output port respectively, direct current output port passes through low pressure direct current output conversion module and battery pack and connects, exchange output port and exchange output conversion module and battery pack through the contravariant and connect, battery pack is equipped with the voltage current detection subassembly that is used for testing magnitude of voltage current, voltage current detection subassembly connection control assembly, be equipped with output power limiting circuit on the low pressure direct current output conversion module, output power limiting circuit with control assembly connects, be equipped with contravariant module switch circuit on the contravariant alternating current output conversion module, contravariant module switch circuit with control assembly connects. The utility model relates to a simply, convenient to carry, the safety of system and battery is guaranteed to the size that can automated inspection, control output when charging.

Description

A multi-purpose mobile power supply capable of outputting AC and DC

technical field

The utility model relates to the field of charging equipment, in particular to a multipurpose mobile power supply capable of outputting alternating current and direct current.

Background technique

With the advancement of science and technology and society, more and more mobile terminals such as portable notebook computers, tablet computers, and smart phones have been popularized in people's lives. Do not open these constantly updated mobile terminals. However, the limited size of the mobile terminal makes its built-in battery capacity limited, and people's life rhythm is getting faster and faster, so an excellent solution is needed to solve the problems of battery life and fast charging. This is why current power banks and portable chargers are used in large quantities.

However, the current conventional mobile power supply can only provide a simple 5V DC output, or a low-power fixed 5V-12V-15V-20V DC output, and these output interfaces are all based on USB interface sockets. However, many devices are not currently standard USB power input interfaces, such as most notebook computers, digital cameras and other devices. The charging of such devices still needs to use their supporting AC adapters to realize charging or power supply. Therefore, a multi- In addition to the application, there are mobile power applications with DC output and AC high voltage output.

This is facing a contradiction. Because of the portability of the mobile power supply, the battery capacity cannot be too large. In this way, due to the limitation of the total output power of the battery and the consideration of thermal safety, it is necessary to limit the simultaneous output of DC and AC. The total power, otherwise, the battery output power will exceed its specified maximum load capacity, and the safety and reliability problems caused by excessive temperature will occur due to excessive output power.

Utility model content

Aiming at the defects of the above-mentioned prior art, the utility model provides a multi-purpose mobile power supply capable of outputting AC and DC. When charging different devices, you can use its supporting AC adapter to realize charging or power supply. When charging, it can automatically detect the size of the output power to ensure the safety of the system and battery.

In order to achieve the above object, the technical solution adopted in the utility model is:

A multipurpose mobile power supply capable of outputting alternating current and direct current, including a battery assembly and a control assembly, wherein the battery assembly is provided with a direct current output port and an alternating current output port respectively, and the direct current output port passes through a low-voltage direct current output conversion module and a battery component connection, the AC output port is connected to the battery component through the inverter AC output conversion module, the battery component is provided with a voltage and current detection component for testing the voltage and current value, the voltage and current detection component is connected to the control component, and the low voltage The DC output conversion module is provided with an output power limiting circuit, the output power limiting circuit is connected to the control assembly, the inverter AC output conversion module is provided with an inverter module switch circuit, and the inverter module switch circuit and The control assembly is connected.

In the above description, preferably, the control component is provided with a calculation module for calculating the actual output power according to the voltage and current values tested by the voltage and current detection component.

In the above description, preferably, the control component is provided with a detection unit for detecting the access device.

The beneficial effects produced by the utility model are: in the utility model, when the AC and DC outputs are turned on at the same time, the voltage and current detection component monitors the output power of the battery module at any time, and if the output power exceeds the specified limit, the control component is properly reduced. The maximum output power limit of the low-voltage DC output conversion module, so that the equipment connected to the DC output port will automatically reduce the load current due to the decrease in the output voltage of the low-voltage DC output conversion module, thereby limiting the total battery output power. When the output power of the DC output terminal drops to the minimum or even reaches 0 and the output power of the battery cannot be controlled within the specified limit, it means that the power of the AC output terminal exceeds the rated power, and the system turns off all outputs to ensure the protection of the system and the battery. Safety.

In order to more clearly illustrate the structural features, technical means and the specific purpose and functions achieved by the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

Description of drawings

Fig. 1: is the structure diagram of the utility model system;

Description of the accompanying drawings: 1-battery component, 2-low voltage DC output conversion module, 3-inverter AC output conversion module, 4-control component, 5-voltage and current detection component, 6-output power limiting circuit, 7-inverter Module switch circuit, 8-AC output terminal, 9-DC output terminal.

Detailed ways

As shown in Figure 1, a multi-purpose mobile power supply capable of outputting AC and DC includes a battery assembly 1 and a control assembly 4, wherein the battery assembly 1 is provided with a DC output port 8 and an AC output port 9 respectively, the The DC output port 9 is connected to the battery assembly 1 through the low-voltage DC output conversion module 2, the AC output port 8 is connected to the battery assembly 1 through the inverter AC output conversion module 3, and the battery assembly 1 is provided with a device for testing voltage and current values. A voltage and current detection component 5, the voltage and current detection component 5 is connected to the control component 4, the low-voltage direct current output conversion module 2 is provided with an output power limiting circuit 6, and the output power limiting circuit 6 is connected to the control component 4, The inverter AC output conversion module 3 is provided with an inverter module switch circuit 7 , and the inverter module switch circuit 7 is connected to the control component 4 . The control component 4 is provided with a calculation module for calculating the actual output power according to the voltage and current values tested by the voltage and current detection component 5 . The DC output port 9 and the AC output port 8 are respectively connected to the control component 4 . The control component 4 is provided with a control switch for opening the corresponding port when the detection device is connected to the output port. When the battery assembly 1 outputs current and voltage, the AC output port 8 receives it preferentially. When the output power of the AC output port 8 is less than the rated power, the remaining rated power is output from the DC output port 9 .

According to the technical principle of the utility model, in actual use, the control component 4 obtains the battery current value from the voltage and current detection component 5, and calculates the actual output power. If the actual output power is greater than the maximum power allowed by the battery set by the system, then control The component 4 reduces the actual effective output power of the low-voltage DC output conversion module 2 through the output power limiting circuit 6 until the actual output power is not greater than the maximum power allowed by the battery set by the system. If the output power of the low-voltage DC output conversion module 2 is reduced When it is set to 0, the actual output power is still greater than the maximum allowed output power of the battery set by the system, and the control component 4 closes the DC output port 9 and the AC output port 8, prompting output overload.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments according to the technical practice of the present utility model are still valid. It belongs to the scope of the technical solution of the utility model.

Claims (3)

1. A multi-purpose mobile power supply capable of outputting alternating current and direct current, comprising a battery assembly and a control assembly, characterized in that: the battery assembly is respectively provided with a DC output port and an AC output port, and the DC output port is output through a low-voltage direct current The conversion module is connected to the battery assembly, the AC output port is connected to the battery assembly through the inverter AC output conversion module, the battery assembly is provided with a voltage and current detection assembly for testing voltage and current values, and the voltage and current detection assembly is connected to the control assembly , the low-voltage DC output conversion module is provided with an output power limiting circuit, the output power limiting circuit is connected to the control component, the inverter AC output conversion module is provided with an inverter module switch circuit, and the inverter The module switch circuit is connected with the control component. 2. A multi-purpose mobile power supply capable of outputting AC and DC according to claim 1, characterized in that: said control component is provided with a calculation module for calculating the actual output power according to the voltage and current values tested by the voltage and current detection component. 3. A multi-purpose mobile power supply capable of outputting AC and DC according to claim 1, characterized in that: said control module is provided with a detection unit for detecting access devices.