CN204391800U - A kind of storage battery and electric power system thereof - Google Patents

Abstract

A battery and its power supply system, the battery includes a battery body, a front cover is fastened on the middle cover of the battery body, a charging and discharging control circuit board is fixed between the front end cover and the middle cover, the charging The discharge control circuit board is electrically connected to the storage battery body, and a power supply system includes a power generation component, the storage battery and a load that are electrically connected in sequence; the storage battery has charge and discharge management functions.

Description

A battery and its power supply system

technical field

The utility model relates to a storage battery and a power supply system thereof.

Background technique

At present, batteries are widely used in the field of new energy. Due to technical limitations, batteries are very sensitive to the conditions of use and the environment in which they are used. It is connected with an external charge and discharge management controller for charge and discharge management. Therefore, the existing power supply system must place all components in the chassis, and rely on the chassis to form a complete system. The overall design is complicated, the wiring is chaotic, and the structure is rough.

Utility model content

The purpose of the utility model is to provide a battery and its power supply system, the battery has charge and discharge management functions.

The technical scheme adopted by the utility model is that a battery includes a battery body, a front end cover is fastened on the middle cover of the battery body, and a charging and discharging control circuit board is fixed between the front end cover and the middle cover , the charge and discharge control circuit board is electrically connected to the battery body.

Preferably, the electrical connection between the charge and discharge control circuit board and the battery body is that the conductive joints on the charge and discharge control circuit board are in contact with the conductive joints on the battery body.

Preferably, the middle cover of the battery body is provided with positive and negative electrode terminals, positioning terminals and threaded holes, and the charge and discharge control circuit board is correspondingly provided with a first through hole, and the first through hole is sleeved on the The above positive and negative electrode terminals, positioning terminals and threaded holes.

Preferably, 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, and the front cover is correspondingly provided with a second through hole, so The load output interface, system switch, working status indicator light, protection fuse, input interface and USB output interface pass through the second through hole respectively.

Preferably, the battery body shell and the front end cover are injection molded flame retardant materials.

Preferably, the front end cover is provided with battery acid discharge holes.

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

Preferably, the battery is a lead-acid battery

A power supply system, comprising sequentially electrically connected power generation components, any one of the above storage batteries, and a load.

Preferably, the power generation components include solar photovoltaic power generation components, wind power generation components or thermoelectric power generation components.

The beneficial effects of the utility model are:

1. The storage battery of the utility model has a built-in charge and discharge control circuit board, so that the storage battery has a charge and discharge management function.

2. The conductive joints on the charging and discharging control circuit board in the utility model are directly in contact with the conductive joints on the battery body to realize the electrical connection between the two without setting additional leads between the battery body and the electric control circuit board And shrapnel, the wiring is simple.

3. The shell of the battery body and the front end cover in the utility model are injection-molded flame-retardant materials, which make the battery of the utility model resistant to high and low temperatures, high in flame-retardant grade, and anti-aging.

4. The charge and discharge control circuit board in the utility model is equipped with a battery temperature compensation circuit, a floating charge management circuit, an overvoltage protection circuit and an undervoltage protection circuit. The battery temperature compensation circuit can adjust the charging of the battery according to the change of the ambient temperature. Voltage, which is beneficial to prolong the service life of the battery; the float charge management circuit can adjust the float charge voltage according to the change of battery capacity to prolong the service life of the battery; the overvoltage and undervoltage protection circuit can prevent the battery from overcharging or overdischarging, Ensure battery life.

5. The battery integrated design of the utility model has a delicate and compact appearance, which is convenient for storage and transportation.

Description of drawings

Fig. 1 is the explosion diagram of storage battery of the present utility model;

Fig. 2 is a schematic structural diagram of the power supply system of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

As shown in Figure 1, a kind of accumulator, this accumulator is lead-acid accumulator, comprises accumulator body 4, and the middle cover 5 of described accumulator body is buckled with front end cover 7, and the shell of accumulator body 4 and end cap 7 are injection molded Flame retardant material, the front end cover 7 can be directly sleeved on the middle cover 5, and can also be connected with the middle cover 5 by bolts or buckles; a charging and discharging control circuit board 6 is fixed between the front end cover 7 and the middle cover 5, charging and discharging The discharge control circuit board 6 can be threadedly connected with the middle cover 5, and can also be directly fastened 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 correspondingly provided with a first through hole 11 on the charge and discharge control circuit board 6, and the first through hole 11 on the charge and discharge control circuit board 6 is respectively sleeved on the positive and negative electrode terminals 8 and the positioning terminal 9 and the threaded hole 10, and fixed by the threaded connection between the screw and the threaded hole 10; The electrical connection is that the conductive joints on the charge and discharge control circuit board 6 and the conductive joints on the battery body 4 are in contact with each other; the front of the charge and discharge control circuit board 6 is provided with a load output interface, a system switch, a working status indicator light, and a protective fuse. wire, input interface and USB output interface, the front cover is correspondingly provided with a second through hole 12, and the load output interface, system switch, working status indicator light, protection fuse, input interface and USB output interface pass through the front end respectively The second through hole 12 corresponding to it on the cover 7; the charge and discharge control circuit board 6 is provided with a battery temperature compensation circuit, an equal float charge management circuit, an overvoltage protection circuit and/or an undervoltage protection circuit.

Both the input and output of the storage battery of the utility model have short-circuit or anti-reverse connection processing, which can avoid faults caused by misoperation; the storage battery has a built-in over-temperature alarm protection function, which can avoid shortening the battery life caused by over-temperature and rapid aging of single-board devices Other safety issues caused by it; the output part has an overload protection function to ensure that the product can work stably for a long time.

As shown in Figure 2, a power supply system includes a power generation component 1 electrically connected in sequence, a storage battery 2 and a load 3 in the above embodiment, wherein the power generation component 1 can be a solar photovoltaic power generation component, a wind power generation component or a thermoelectric power generation Components, the load 3 can be used for mobile phone charging, home lighting, etc.

Although the embodiments disclosed in the present utility model are as above, the content described is only an embodiment adopted for the convenience of understanding the present utility model, and is not intended to limit the present utility model. Anyone skilled in the technical field to which the utility model belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the utility model, but the patent of the utility model The scope of protection must still be based on the scope defined in the appended claims.

Claims (10)

1. A battery, characterized in that it comprises a battery body, a front end cover is fastened on the middle cover of the battery body, a charging and discharging control circuit board is fixed between the front end cover and the middle cover, and the charging The discharge control circuit board is electrically connected with the battery body. 2. The storage battery according to claim 1, characterized in that, the electrical connection between the charge and discharge control circuit board and the battery body is that the conductive joints on the charge and discharge control circuit board and the conductive joints on the battery body are connected to each other. touch. 3. The battery according to claim 1 or 2, wherein the middle cover of the battery body is provided with positive and negative electrode terminals, positioning terminals and threaded holes, and the charge and discharge control circuit board is correspondingly provided with a first Through holes, the first through holes are sleeved on the positive and negative electrode terminals, positioning terminals and threaded holes. 4. The storage battery according to claim 1 or 2, wherein the charge and discharge control circuit board is provided with a load output interface, a system switch, a working status indicator light, a protection fuse, an input interface and a USB output interface, The front cover is correspondingly provided with a second through hole, and the load output interface, system switch, working status indicator light, protection fuse, input interface and USB output interface pass through the second through hole respectively. 5. The storage battery according to claim 1 or 2, characterized in that, the casing of the storage battery body and the front end cover are injection molded flame retardant materials. 6. The accumulator according to claim 1 or 2, characterized in that, the front cover is provided with an acid discharge hole of the accumulator. 7. The storage battery according to claim 1 or 2, characterized in that, the charge and discharge control circuit board is provided with a battery temperature compensation circuit, an equal float charge management circuit, an overvoltage protection circuit and/or an undervoltage protection circuit. 8. The accumulator according to claim 1 or 2, characterized in that the accumulator is a lead-acid accumulator. 9. A power supply system, characterized by comprising sequentially electrically connected power generation components, the storage battery according to any one of claims 1-8, and a load. 10. The power supply system according to 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.