WO2016110130A1

WO2016110130A1 - Storage battery and power supply system thereof

Info

Publication number: WO2016110130A1
Application number: PCT/CN2015/090549
Authority: WO
Inventors: 杨积成; 刘志娟; 龙畅; 李方明; 王海波
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-01-06
Filing date: 2015-09-24
Publication date: 2016-07-14
Also published as: CN204391800U

Abstract

A storage battery, comprising a storage battery body (4), a front end cover (7) fastened on a middle cover (5) of the storage battery body (4), and a charging/discharging control circuit board (6) fixed between the front end cover (7) and the middle cover (5), and electrically connected to the storage battery body (4). The storage battery has a discharging/discharging management function.

Description

Battery and power supply system thereof

Technical field

This document relates to a battery and its power supply system.

Background technique

At present, batteries are widely used in the field of new energy. Due to technical limitations, the battery is very sensitive to the conditions of use and the environment in which it is used. If it is not properly maintained, it is easy to scrap and fail. In the related technology, the battery does not have a charge and discharge management function, and must be connected with an external charge and discharge management controller. Connect and perform charge and discharge management. For example, in the solar power system of the related art, in the system, the battery and the charge and discharge management controller are connected by a plurality of leads and placed in a chamber inside the chamber for charge and discharge management.

As described above, the battery charge and discharge management system of the related art has a problem of complicated structure and many wirings.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a battery and a power supply system thereof to solve the technical problem of how to make the battery itself have a charge and discharge management function.

The technical solution adopted by the embodiment of the present invention is a battery, comprising a battery body, a front cover is fastened on the middle cover of the battery body, and a charge and discharge control circuit is fixed between the front cover and the middle cover The board, the charge and discharge control circuit board is electrically connected to the battery body.

Optionally, the electrical connection between the charge and discharge control circuit board and the battery body is such that the conductive joint on the charge and discharge control circuit board and the conductive joint on the battery body are in contact with each other.

Optionally, the middle cover of the battery body is fixedly connected to the charging and discharging control circuit board, and the middle cover of the battery body is provided with positive and negative electrode terminals, positioning terminals and threaded holes, and the charging and discharging control circuit board Correspondingly, a first through hole is disposed, and the first through hole is sleeved on the positive and negative electrode terminals, Position the terminal and the threaded hole.

Optionally, the front end cover is fixedly connected to the charging and discharging control circuit board, and the charging and discharging control circuit board is provided with a load output interface, a system switch, an operating status indicator, a protection fuse, an input interface, and a USB output. The front end cover is correspondingly provided with a second through hole, and the load output interface, the system switch, the working status indicator, the protection fuse, the input interface and the USB output interface respectively pass through the second through hole.

Optionally, the material of the battery body casing and the front end cover is an injection molded flame retardant material.

Optionally, the front end cover is provided with a battery acid drain hole.

Optionally, the charge and discharge control circuit board is provided with a battery temperature compensation circuit, a floating charge management circuit, an overvoltage protection circuit, and/or an undervoltage protection circuit.

Optionally, the battery is a lead-acid battery.

Embodiments of the present invention also provide a power supply system including a power generation component that is sequentially electrically connected, a battery such as the above, and a load.

Optionally, the power generation component comprises a solar photovoltaic power generation component, a wind power generation component or a thermoelectric power generation component.

The beneficial effects of the embodiments of the present invention are:

The battery of the embodiment of the invention has a built-in charge and discharge control circuit board, so that the battery has a charge and discharge management function.

The conductive joint on the charge and discharge control circuit board in the embodiment of the invention directly contacts the conductive joint on the battery body to realize electrical connection between the two, without providing additional lead wires between the battery body and the electric control circuit board. Shrapnel, simple wiring.

The battery body casing and the front end cover of the embodiment of the invention are injection-molded flame-retardant materials, so that the battery of the embodiment of the invention is resistant to high and low temperature, high flame retardant grade and anti-aging.

The charging and discharging control circuit board of the embodiment of the invention is provided with a battery temperature compensation circuit, a floating charging management circuit, an overvoltage protection circuit and an undervoltage protection circuit, and the battery temperature compensation circuit can adjust the charging voltage of the battery according to the fluctuation of the ambient temperature. , which is beneficial to prolong the service life of the battery; The circuit can adjust the floating charge voltage according to the change of the battery capacity to prolong the service life of the battery; the overvoltage and undervoltage protection circuits can prevent the battery from overcharging or overdischarging, and ensure the service life of the battery.

The battery integrated design of the embodiment of the invention has the advantages of exquisite appearance and small size, and is convenient for storage and transportation.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is an exploded view of a battery according to an embodiment of the present invention;

2 is a schematic structural diagram of a power supply system according to an embodiment of the present invention.

Embodiments of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

As shown in FIG. 1 , a battery is a lead-acid battery, including a battery body 4 , and a front cover 7 is fastened on the middle cover 5 of the battery body, and the outer casing and the front end cover 7 of the battery body 4 are injection molded. The flame-retardant material, the front end cover 7 can be directly sleeved on the middle cover 5, or can be connected to the middle cover 5 by bolts or buckles; a charge and discharge control circuit board 6 is fixed between the front end cover 7 and the middle cover 5, charging The discharge control circuit board 6 can be screwed to the middle cover 5 or directly between the front end cover 7 and the middle cover 5. In this embodiment, the middle cover 5 of the battery body is provided with positive and negative electrode terminals 8, The positioning terminal 9 and the threaded hole 10 are respectively provided with a first through hole 11 on the charging and discharging control circuit board 6, and the first through holes 11 on the charging and discharging control circuit board 6 are respectively sleeved on the positive and negative electrode terminals 8 and the positioning terminal 9. And the threaded hole 10 is fixed by the screw connection of the screw and the threaded hole 10; the back surface of the charge and discharge control circuit board 6 is electrically connected to the battery body 4, and the charge and discharge control circuit board 6 and the battery body 4 are provided for the connection of the battery. Electrical connection is the guide on the charge and discharge control circuit board 6. The connector is in contact with the conductive connector on the battery body 4; a load output interface, a system switch, an operating status indicator, a protection fuse, an input interface, and a USB output interface are provided on the front surface of the charge and discharge control circuit board 6, the front end cover Correspondingly, a second through hole 12 is disposed, and the load output interface, the system switch, the working status indicator, the protection fuse, the input interface, and the USB output interface respectively pass through the second through hole 12 corresponding to the front cover 7; The discharge control circuit board 6 is provided with a battery temperature compensation circuit, a floating charge management circuit, and Voltage protection circuit and / or undervoltage protection circuit.

The input and output of the battery of the embodiment of the invention all have short circuit or anti-reverse connection processing, which can avoid malfunction caused by misoperation; the battery has built-in over-temperature alarm protection function, avoiding over-temperature and shortening battery life, and board device speed Other safety issues caused by aging; the output part has overload protection to ensure that the product can stabilize long-term work.

As shown in FIG. 2, a power supply system includes a power generation component sequentially connected in series, a battery 2 in the above embodiment, and a load 3, wherein the power generation component 1 can be a solar photovoltaic power generation component, a wind power generation component, or a thermoelectric power generation system. The component, the load 3 can be used for charging the mobile phone, home lighting, and the like.

While the embodiments of the present invention have been described above, the described embodiments are merely illustrative of the embodiments of the invention, and are not intended to limit the invention.

Industrial applicability

The above technical solution enables the battery to have a charge and discharge management function; the wiring is simple; the battery is resistant to high and low temperature, high flame retardant grade, anti-aging; can ensure the service life of the battery; the appearance is exquisite and compact, convenient for storage and transportation.

Claims

A battery comprising:

Battery body

The front cover of the middle cover of the battery body is fastened;

A charge and discharge control circuit board is fixed between the front end cover and the middle cover, and the charge and discharge control circuit board is electrically connected to the battery body.
The battery of claim 1, wherein the electrical connection of the charge and discharge control circuit board to the battery body comprises:

The conductive joint on the charge and discharge control circuit board and the conductive joint on the battery body are in contact with each other.
The battery according to claim 1 or 2, wherein the middle cover of the battery body is fixedly connected to the charge and discharge control circuit board, and includes:

The middle cover of the battery body is provided with positive and negative electrode terminals, positioning terminals and threaded holes;

The charging and discharging control circuit board is correspondingly provided with a first through hole, and the first through hole is sleeved on the positive and negative electrode terminals, the positioning terminal and the threaded hole.
The battery according to claim 1 or 2, wherein the front end cover is fixedly connected to the charge and discharge control circuit board, and includes:

The charge and discharge control circuit board is provided with a load output interface, a system switch, a working status indicator, a protection fuse, an input interface and a USB output interface;

The front end cover is correspondingly provided with a second through hole;

The load output interface, the system switch, the working status indicator, the protection fuse, the input interface, and the USB output interface respectively pass through the second through hole.
A battery according to claim 1 or 2, wherein

The material of the battery body casing and the front end cover includes an injection molded flame retardant material.
The battery of claim 1 or 2, further comprising:

The front end cover is provided with a battery acid drain hole.
The battery of claim 1 or 2, further comprising:

The charging and discharging control circuit board is provided with a battery temperature compensation circuit, a floating charging management circuit, an overvoltage protection circuit and an undervoltage protection circuit.
A battery according to claim 1 or 2, wherein said battery comprises a lead acid battery.
A power supply system comprising a power generation assembly sequentially connected in series, a load, and a battery according to any of claims 1-8.
The power supply system of claim 9, wherein the power generation component comprises a solar photovoltaic power generation component, a wind power generation component, or a thermoelectric power generation component.