CN212113938U

CN212113938U - Charge-discharge protection device for lithium battery pack

Info

Publication number: CN212113938U
Application number: CN202022501368.XU
Authority: CN
Inventors: 侯庆云; 牛龙龙; 侯文玉
Original assignee: Xinxiang Hongsun Energy Co ltd
Current assignee: Xinxiang Hongsun Energy Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2020-12-08
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a lithium battery pack charging and discharging protection device, which comprises a connecting shell, wherein the left end and the right end of the connecting shell are respectively provided with a power terminal and a battery terminal, the inside of the connecting shell is provided with a current regulating component and a current detector, the current regulating component is connected with the power terminal through a lead, the current regulating component is connected with the current detector through a lead, the current detector is connected with the battery terminal through a lead, the inner bottom surface of the connecting shell is provided with a device power supply, the device power supply is connected with the power terminal through a lead, the size of a resistance of a spiral resistance wire can be effectively controlled by moving the conductive rod outside the spiral resistance wire, so as to control the size of the battery current, the adjustment is more convenient, the lithium battery pack charging and discharging protection device has simple structure and convenient installation, the detection is, and the battery can be protected and adjusted, so that the service life of the battery is longer.

Description

Charge-discharge protection device for lithium battery pack

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell group charge-discharge protection device.

Background

The lithium battery pack is generally used as a standby battery on the traditional financial equipment, because the lithium battery has the advantages of large capacity, small volume and the like, and is generally used as the first choice of the standby battery, however, the charging and discharging of the lithium battery are higher in requirements, and the lithium battery is often damaged by improper charging or discharging, so that the capacity of the lithium battery is reduced or even scrapped, and even more dangerous situations, such as explosion accidents, occur.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a lithium cell group charge-discharge protection device, simple structure, simple to operate not only makes to detect more comprehensively, can protect and adjust the battery moreover for battery life is longer, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium cell group charge-discharge protection device, is including connecting the shell, both ends are equipped with power terminal and battery terminal respectively about connecting the shell, the inside of connecting the shell is equipped with current regulation subassembly and current detector, and the current regulation subassembly passes through the wire and is connected with power terminal, the current regulation subassembly passes through the wire and is connected with current detector, and current detector passes through the wire and is connected with battery terminal, the inside bottom surface of connecting the shell is equipped with the device power, and the device power passes through the wire and is connected with power terminal, the inside top surface of connecting the shell is equipped with the drive assembly who drives current regulation subassembly and adjust, the upper surface of connecting the shell is equipped with the PLC controller, and the input of PLC controller passes through the wire and is connected with device power and current detector.

Further, the inside of connecting the shell is equipped with voltage detector, and voltage detector passes through the wire and is connected with battery terminal and PLC controller, can detect the both ends voltage of battery through voltage detector for it is more comprehensive to detect.

Further, the inside of connecting the shell is equipped with electromagnetic switch, and electromagnetic switch sets up on the wire that current detector and battery terminal are connected, and electromagnetic switch's input passes through the wire and is connected with the output of PLC controller, can control the outside switch-on of battery terminal or disconnection through electromagnetic switch to this protects the battery, makes the protection more comprehensive.

Furthermore, the current regulation assembly comprises an I-shaped insulating rod connected with the connecting shell, a spiral resistance wire is arranged on the outer side of the insulating rod, a conductive rod in sliding connection is arranged on the outer side of the spiral resistance wire, the conductive rod is connected with a power terminal through a wire, one end of the spiral resistance wire is connected with a current detector through a wire, and the size of the resistance of the spiral resistance wire can be effectively controlled by moving the conductive rod on the outer side of the spiral resistance wire, so that the size of the current of the battery is controlled, and the regulation is more convenient.

Further, drive assembly is including setting up the slip connection slat at the connection shell top surface, is equipped with sliding connection's slip connection seat on the slip connection slat, has the screw thread post through threaded connection on the slip connection seat, the one side of connecting the shell is equipped with and drives screw thread post pivoted motor, and the output of PLC controller is connected to the input electricity of motor, one side of slip connection seat is passed through the insulated column and is connected with the conducting rod, can drive the screw thread post through the motor and rotate, can drive the slip connection seat along the slip connection slat back-and-forth movement through the screw thread post, can drive the conducting rod through the slip connection seat and remove to this adjusts the removal to current regulation subassembly.

Compared with the prior art, the beneficial effects of the utility model are that: this lithium cell group charge-discharge protection device has following advantage:

1. the utility model discloses on set up voltage detector, can detect the both ends voltage of battery through voltage detector for it is more comprehensive to detect, can control the outside switch-on of battery terminal or disconnection through electromagnetic switch, protects the battery with this, makes the protection more comprehensive.

2. The utility model discloses on set up the motor, can drive the screw thread post through the motor and rotate, can drive the sliding connection seat through the screw thread post along sliding connection slat back-and-forth movement, can drive the conducting rod through the sliding connection seat and remove to this adjusts the removal to current regulation subassembly.

3. The utility model discloses on set up the conducting rod, removed the size that can effectual control spiral resistance wire resistance through the conducting rod in the spiral resistance wire outside to this size of controlling battery current, it is more convenient to make the regulation, this lithium cell group charge-discharge protection device, simple structure, simple to operate not only makes to detect more comprehensively, can protect and adjust the battery moreover, makes battery life longer.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the present invention.

In the figure: the device comprises a power supply terminal 1, a connection shell 2, a PLC controller 3, a battery terminal 4, a driving assembly 5, a motor 51, a threaded column 52, a sliding connection strip plate 53, a sliding connection seat 54, a current adjusting assembly 6, a conductive rod 61, a spiral resistance wire 62, an insulating rod 63, a current detector 7, a device power supply 8, a voltage detector 9 and an electromagnetic switch 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-3, the present invention provides a technical solution: a lithium battery pack charging and discharging protection device comprises a connecting shell 2, a power supply terminal 1 and a battery terminal 4 are respectively arranged at the left end and the right end of the connecting shell 2, a current regulating assembly 6 and a current detector 7 are arranged inside the connecting shell 2, the current regulating assembly 6 is connected with the power supply terminal 1 through a lead, the current regulating assembly 6 is connected with the current detector 7 through a lead, the current detector 7 is connected with the battery terminal 4 through a lead, a device power supply 8 is arranged at the inner bottom surface of the connecting shell 2, the device power supply 8 is connected with the power supply terminal 1 through a lead, a driving assembly 5 for driving the current regulating assembly 6 to regulate is arranged at the inner top surface of the connecting shell 2, a PLC controller 3 is arranged at the upper surface of the connecting shell 2, the PLC controller 3 is the prior art, such as a Siemens PLC with the model of S-1200, the input end of the PLC controller 3 is electrically connected with the output, the voltage detector 9 is arranged in the connecting shell 2, the voltage detector 9 is connected with the battery binding post 4 and the PLC controller 3 through a lead, the voltage at two ends of the battery can be detected through the voltage detector 9, the detection is more comprehensive, the electromagnetic switch 10 is arranged in the connecting shell 2, the electromagnetic switch 10 is arranged on the lead connected with the current detector 7 and the battery binding post 4, the input end of the electromagnetic switch 10 is connected with the output end of the PLC controller 3 through the lead, the external connection or disconnection of the battery binding post 4 can be controlled through the electromagnetic switch 10, the battery is protected, the protection is more comprehensive, the current adjusting assembly 6 comprises an I-shaped insulating rod 63 connected with the connecting shell 2, a spiral resistance wire 62 is arranged outside the insulating rod 63, a conductive rod 61 in sliding connection is arranged outside the spiral resistance wire 62, and the conductive rod 61 is connected with the power supply binding post 1 through the lead, one end of a spiral resistance wire 62 is connected with a current detector 7 through a lead, the resistance of the spiral resistance wire 62 can be effectively controlled by moving the conductive rod 61 outside the spiral resistance wire 62, so as to control the current of the battery, the adjustment is more convenient, the driving component 5 comprises a sliding connection strip plate 53 arranged on the top surface of the connecting shell 2, a sliding connection seat 54 in sliding connection is arranged on the sliding connection strip plate 53, a threaded column 52 is connected on the sliding connection seat 54 through a thread, a motor 51 for driving the threaded column 52 to rotate is arranged on one side of the connecting shell 2, the input end of the motor 51 is electrically connected with the output end of the PLC 3, one side of the sliding connection seat 54 is connected with the conductive rod 61 through an insulating column, the threaded column 52 can be driven by the motor 51 to rotate, the sliding connection seat 54 can be driven to move back and forth along the sliding connection strip plate 53 through the threaded column 52, the conductive, the current regulation assembly 6 is regulated and moved, and the lithium battery pack charging and discharging protection device is simple in structure and convenient to install, so that detection is more comprehensive, a battery can be protected and regulated, and the service life of the battery is longer.

When in use: firstly, the power supply terminal 1 can be connected with an external power supply, so that the device power supply 8 can be charged, the device can be supplied with power through the device power supply 8, the current detector 7 can detect the current for charging and discharging the battery, when the current is overlarge, the motor 51 can drive the threaded post 52 to rotate, the threaded post 52 can drive the sliding seat 54 to move back and forth along the sliding connection strip plate 53, the sliding seat 54 can drive the conductive rod 61 to move, so that the current adjusting component 6 can be adjusted and moved, the resistance of the spiral resistance wire 62 can be effectively controlled by moving the conductive rod 61 outside the spiral resistance wire 62, so that the current of the battery can be controlled, so that the uninterrupted power protection is realized, the voltage at two ends of the battery can be detected through the voltage detector 9, when the voltage is abnormal, the external connection or disconnection of the battery terminal 4 can be controlled through the electromagnetic switch 10, therefore, the battery is protected, and the protection is more comprehensive.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium cell group charge-discharge protection device, is including connecting shell (2), its characterized in that: connect both ends and be equipped with power terminal (1) and battery terminal (4) respectively about shell (2), the inside of connecting shell (2) is equipped with current regulation subassembly (6) and current detector (7), and current regulation subassembly (6) are connected with power terminal (1) through the wire, current regulation subassembly (6) are connected with current detector (7) through the wire, and current detector (7) are connected with battery terminal (4) through the wire, the inside bottom surface of connecting shell (2) is equipped with device power (8), and device power (8) are connected with power terminal (1) through the wire, the inside top surface of connecting shell (2) is equipped with drive assembly (5) that drive current regulation subassembly (6) were adjusted, the upper surface of connecting shell (2) is equipped with PLC controller (3), and the input of PLC controller (3) passes through the wire and the output of device power (8) and current detector (7) And (6) electrically connecting.

2. The lithium battery pack charge and discharge protection device according to claim 1, wherein: the battery is characterized in that a voltage detector (9) is arranged inside the connecting shell (2), and the voltage detector (9) is connected with the battery wiring terminal (4) and the PLC (3) through a lead.

3. The lithium battery pack charge and discharge protection device according to claim 1, wherein: the battery power supply is characterized in that an electromagnetic switch (10) is arranged inside the connecting shell (2), the electromagnetic switch (10) is arranged on a lead connected with the current detector (7) and the battery binding post (4), and the input end of the electromagnetic switch (10) is connected with the output end of the PLC (3) through the lead.

4. The lithium battery pack charge and discharge protection device according to claim 1, wherein: the current regulation assembly (6) comprises an I-shaped insulating rod (63) connected with the connecting shell (2), a spiral resistance wire (62) is arranged on the outer side of the insulating rod (63), a conductive rod (61) in sliding connection is arranged on the outer side of the spiral resistance wire (62), the conductive rod (61) is connected with the power supply wiring terminal (1) through a wire, and one end of the spiral resistance wire (62) is connected with the current detector (7) through a wire.

5. The lithium battery pack charge and discharge protection device according to claim 1, wherein: drive assembly (5) are equipped with sliding connection's sliding connection seat (54) including setting up sliding connection slat (53) connecting shell (2) top surface on sliding connection slat (53), have screw thread post (52) through threaded connection on sliding connection seat (54), one side of connecting shell (2) is equipped with and drives screw thread post (52) pivoted motor (51), and the output of PLC controller (3) is connected to the input electricity of motor (51), one side of sliding connection seat (54) is passed through the insulated column and is connected with conducting rod (61).