CN218102613U

CN218102613U - Novel battery charge-discharge management device

Info

Publication number: CN218102613U
Application number: CN202220523715.5U
Authority: CN
Inventors: 张高锋; 徐国剑
Original assignee: Jiangsu Gufeng Electric Power Technology Co ltd
Current assignee: Jiangsu Gufeng Electric Power Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-12-20
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a novel battery charge-discharge management of battery energy storage technical field device, include: an outer shroud component, the cartridge body component includes: a case body; the two mounting plates are symmetrically arranged at the bottoms of the left side and the right side of the box body from left to right; the charging and discharging management module is installed in the inner cavity of the outer protective shell assembly, and an ideal diode is installed in the inner cavity of the box body and is connected with the wiring terminal in series through a cable; a resistor connected in parallel with the ideal diode through a cable, the resistor being connected in series with the post terminal through a cable; the fuse is connected with the ideal diode in series through a cable, and the invention effectively solves the problems of small internal resistance and large voltage difference between the energy storage battery packs, uncontrolled discharge current during parallel connection and battery pack burnout.

Description

Novel battery charge-discharge management device

Technical Field

The utility model relates to a battery energy storage technical field specifically is a novel battery charge-discharge management device.

Background

With the continuous development of society, the application of lithium battery technology is more and more extensive. In the prior art, the battery pack usually works in a direct series-parallel connection mode, so that the use safety of the battery is greatly reduced, the difficulty of daily maintenance and replacement is increased, and the backup time and the service life of the battery pack are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel battery charge and discharge management device to in solving the current technique that proposes in the above-mentioned background art, the group battery adopts direct series-parallel mode to work usually, greatly reduced the safety in utilization of battery, strengthened the degree of difficulty of routine maintenance and change simultaneously, influence the reserve time of group battery and the problem of life-span.

In order to achieve the above object, the utility model provides a following technical scheme: a novel battery charge-discharge management device comprises:

an outer jacket assembly;

the management module that charges and discharges, the management module that charges and discharges is installed the inner chamber of outer protective housing subassembly, the management module that charges and discharges includes:

the ideal diode is arranged in the inner cavity of the box body, and the ideal diode is connected with the wiring terminal in series through a cable;

a resistor connected in parallel with the ideal diode through a cable, the resistor being connected in series with the post terminal through a cable;

and the fuse is connected with the ideal diode in series through a cable.

Preferably, the outer shield assembly comprises:

a cartridge assembly;

the two terminal posts are symmetrically arranged on the left side and the right side of the box body assembly from left to right;

and the two plugs are symmetrically arranged on the left side and the right side of the box body assembly.

A top cover assembly mounted at the top opening of the box assembly.

Preferably, the cartridge assembly comprises:

a case body;

the two mounting plates are symmetrically arranged at the bottoms of the left side and the right side of the box body from left to right;

the four first mounting holes are uniformly formed in the tops of the front end and the rear end of the left side and the right side of the box body, and penetrate through the inner side face of the box body;

four second mounting holes, four the second mounting hole is evenly seted up both ends around the left and right sides of box body, the second mounting hole is in the lower extreme of first mounting hole, the second mounting hole runs through the medial surface of box body.

Preferably, the cap assembly comprises:

the top cover is arranged at the top of the box body;

the refrigeration piece is installed at the top of the inner cavity of the top cover in an embedded mode and corresponds to the opening at the top of the box body;

the four threaded holes are uniformly formed in the edges of the two end faces of the top cover, and the threaded holes correspond to the first mounting holes.

Compared with the prior art, the beneficial effects of the utility model are that: the invention effectively solves the problems of small internal resistance and large pressure difference between energy storage battery packs, uncontrolled discharge current and battery pack burnout during parallel connection, when two energy storage battery packs are in grid-connected operation with different battery voltages, the energy storage battery pack with high battery voltage discharges through a discharge loop of a battery charge and discharge management module, namely an ideal diode and a fuse loop, and then charges the energy storage battery pack with low battery voltage through a charge loop of the battery charge and discharge management module of the energy storage battery pack with low battery voltage, namely a resistor loop.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the outer protective casing assembly of the present invention;

FIG. 3 is a schematic view of the structure of the box body assembly of the present invention;

fig. 4 is a schematic view of the terminal structure of the binding post of the present invention;

FIG. 5 is a schematic structural diagram of the charge/discharge management module of the present invention;

fig. 6 is a schematic diagram of the line connection of the charge and discharge management device of the present invention.

In the figure: the protection device comprises a 100 outer shell assembly, a 110 box assembly, a 111 box, a 112 mounting plate, a 113 first mounting hole, a 114 second mounting hole, a 120 terminal, a 130 plug, a 140 top cover assembly, a 141 top cover, a 142 chilling plate, a 143 threaded hole, a 200 charge and discharge management module, a 210 ideal diode, a 220 resistor and a 230 fuse.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a novel battery charge and discharge management device, the effectual energy storage battery inter-group internal resistance little pressure differential of having solved is big, and discharge current is uncontrolled during parallelly connected, and the problem that the group battery burns out please refer to figure 1, include: an outer shield assembly 100 and a charge and discharge management module 200;

referring to fig. 1-4, the outer shield assembly 100 includes:

the cartridge assembly 110 includes:

a box body 111;

the two mounting plates 112 are symmetrically arranged at the bottoms of the left side and the right side of the box body 111 from left to right, and the mounting plates 112 and the box body 111 are integrally processed;

the four first mounting holes 113 are uniformly formed in the tops of the front end and the rear end of the left side and the right side of the box body 111, and the first mounting holes 113 penetrate through the inner side face of the box body 111;

four second mounting holes 114 are uniformly formed in the front end and the rear end of the left side and the rear side of the box body 111, the second mounting holes 114 are formed in the lower end of the first mounting hole 113, and the second mounting holes 114 penetrate through the inner side face of the box body 111;

the two terminal terminals 120 are symmetrically arranged on the left side and the right side of the box body assembly 110 from left to right, and the two terminal terminals 120 are symmetrically arranged on the inner sides of two second mounting holes 114 in the four second mounting holes 114 through threaded connection;

the two plugs 130 are symmetrically arranged on the left side and the right side of the box body assembly 110, and the two plugs 130 are symmetrically arranged on the inner sides of the remaining two second mounting holes 114 through threaded connection.

The cap assembly 140 is installed at the top opening of the case assembly 110, and the cap assembly 140 includes:

the top cover 141 is detachably mounted on the top of the case 111 by bolts;

the refrigeration piece 142 is embedded in the top of the inner cavity of the top cover 141, the refrigeration piece 142 corresponds to the opening at the top of the box body 111, the refrigeration piece 142 is a thermoelectric refrigeration piece, and the air in the inner cavity of the box body 111 is cooled through the refrigeration piece 142, so that damage to electrical components caused by high temperature is avoided;

the four threaded holes 143 are uniformly formed in the edges of the two end faces of the top cover 141, the threaded holes 143 correspond to the first mounting holes 113, the threaded holes are screwed to the inner sides of the threaded holes 143 through the first mounting holes 113 by bolts, the top cover 141 is detachably mounted at the top opening of the box body 111 by the bolts, and the top cover 141 and the box body 111 are sealed, so that dust impurities in the outside air are prevented from entering the inner cavity of the box body 111 through a gap between the top cover 141 and the box body 111 to cause damage to electrical components;

referring to fig. 1 to 3 and 5, the charge and discharge management module 200 is installed in the inner cavity of the outer protective housing assembly 100, and the charge and discharge management module 200 includes:

an ideal diode 210 is arranged in the inner cavity of the box body 111, and the ideal diode 210 is connected with the post terminal 120 in series through a cable;

the resistor 220 is connected in parallel with the ideal diode 210 through a cable, and the resistor 220 is connected in series with the post terminal 120 through a cable;

the fuse 230 is connected with the ideal diode 210 in series through a cable, the ideal diode 210 is connected with the resistor 220 in parallel through a cable, the ideal diode 210 is connected with the terminal 120 and the fuse 230 in series through a cable, a driving chip inside the ideal diode 210 is used for driving the MOS tube to be conducted when the ideal diode 210 works, the voltage drop of the input end and the output end of the module is almost zero, the resistor 220 is connected with the ideal diode 210 in parallel through a cable and is connected with the terminal 120 in series, so that a complete battery charging and discharging management module is formed, when two energy storage battery packs are in grid-connected work with different battery voltage, the energy storage battery pack with high battery voltage is discharged through a discharging loop of the battery charging and discharging management module of the energy storage battery pack with low battery voltage, namely the resistor 220 loop, the energy storage battery pack with low battery voltage is charged, when a plurality of energy storage battery packs are in a series-parallel networking mode to form a system work, in order to prevent the situation that the charging current is overlarge, the charging is performed through the charging loop of the battery charging and discharging management module, namely the resistor 220 loop.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments can be used in any combination that is not specifically enumerated in this specification for the sake of brevity and resource savings, provided that no structural conflict exists. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a novel battery charge-discharge management device which characterized in that: the method comprises the following steps:

an outer jacket assembly (100), the outer jacket assembly (100) comprising:

a cartridge assembly (110);

the two terminal terminals (120) are symmetrically arranged on the left side and the right side of the box body component (110) from left to right;

the two plugs (130) are symmetrically arranged on the left side and the right side of the box body component (110) from left to right;

a cap assembly (140), the cap assembly (140) being mounted at a top opening of the cartridge body assembly (110);

charge and discharge management module (200), charge and discharge management module (200) are installed the inner chamber of protecting shell subassembly (100), charge and discharge management module (200) include:

an ideal diode (210), wherein the ideal diode (210) is installed in the inner cavity of the box body (111), and the ideal diode (210) is connected with the post terminal (120) in series through a cable;

a resistor (220), the resistor (220) being connected in parallel with the ideal diode (210) through a cable, the resistor (220) being connected in series with the post terminal (120) through a cable;

a fuse (230), said fuse (230) being in series with said ideal diode (210) through a cable.

2. The novel battery charge and discharge management device according to claim 1, characterized in that: the cartridge assembly (110) comprises:

a box body (111);

the two mounting plates (112) are symmetrically arranged at the bottoms of the left side and the right side of the box body (111) from left to right;

the four first mounting holes (113) are uniformly formed in the tops of the front end and the rear end of the left side and the rear side of the box body (111), and the first mounting holes (113) penetrate through the inner side face of the box body (111);

four second mounting holes (114), four second mounting holes (114) are evenly seted up both ends around the left and right sides of box body (111), second mounting hole (114) are in the lower extreme of first mounting hole (113), second mounting hole (114) run through the medial surface of box body (111).

3. The novel battery charge and discharge management device according to claim 2, characterized in that: the cap assembly (140) comprises:

a top cover (141), the top cover (141) being mounted on the top of the case (111);

the refrigeration piece (142) is installed at the top of the inner cavity of the top cover (141) in an embedded mode, and the refrigeration piece (142) corresponds to the opening at the top of the box body (111);

the four threaded holes (143) are uniformly formed in the edges of the two end faces of the top cover (141), and the threaded holes (143) correspond to the first mounting holes (113).