CN213583918U

CN213583918U - Simple lithium battery equalization equipment

Info

Publication number: CN213583918U
Application number: CN202022523154.2U
Authority: CN
Inventors: 周小龙; 左洋波
Original assignee: Shenzhen Zhanwang Energy Management Co ltd
Current assignee: Shenzhen Zhanwang Energy Management Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-29
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a simple lithium battery balancing equipment includes shell and a plurality of lithium battery electricity core, and is a plurality of lithium battery electricity core is located the shell and sets up, a plurality of balanced subassemblies of inner wall fixedly connected with of shell, T shape draw-in groove has been seted up to one side lateral wall of shell, and the shell keeps away from the curb plate fixedly connected with T shape fixture block of T shape draw-in groove, the upper end fixedly connected with limiting plate of shell, and the embedded connection piece that is equipped with of limiting plate, this simple lithium battery balancing equipment through setting up zener diode and discharge resistance, when electric core voltage is higher than zener diode's steady voltage, and electric core passes through zener diode, and resistance discharges, falls to being less than after the zener diode steady voltage after electric core voltage discharges, and electric core can automatic stop discharge, through setting up a plurality of balanced subassemblies, can realize the balanced purpose of battery.

Description

Simple lithium battery equalization equipment

Technical Field

The utility model relates to a lithium battery equipment technical field specifically is a simple lithium cell balancing equipment.

Background

More and more products adopt lithium ion batteries as main power supplies, mainly because the lithium ion batteries have the advantages of small volume, high energy density, no memory effect, long cycle life, low self-discharge rate and the like; meanwhile, the lithium ion battery has high requirements on charging and discharging, when the conditions such as overcharge, overdischarge, overcurrent and short circuit occur, the pressure and heat of the lithium ion battery are greatly increased, and sparks, combustion and even explosion are easily generated, so that the lithium ion battery is additionally provided with an overcharge and discharge protection circuit without one side, and in addition, when a group of lithium ion batteries are charged and discharged, the safety and the stability can be ensured by taking balance measures in consideration of the inconsistency of each single battery.

In prior art, lithium battery balancing equipment needs to detect all monomer voltages in the battery pack, discharges to the battery that monomer voltage is high, and the system is more complicated, builds the difficulty, needs professional personnel to design to the system does well the back, and the increase of passageway quantity is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple lithium cell balancing equipment to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a simple lithium battery equalization device comprises a shell and a plurality of lithium battery cells, wherein the plurality of lithium battery cells are arranged in the shell, a plurality of equalization assemblies are fixedly connected to the inner wall of the shell, a T-shaped clamping groove is formed in the side wall of one side of the shell, a T-shaped clamping block is fixedly connected to a side plate, away from the T-shaped clamping groove, of the shell, a limiting plate is fixedly connected to the upper end of the shell, and a connecting sheet is embedded in the limiting plate;

the balancing component comprises a cover plate, a cavity is arranged in the cover plate, a voltage stabilizing diode and a discharge resistor are fixedly connected in the cavity, two conducting strips are embedded at the lower end of the cavity, the lower ends of the two conducting strips are abutted against a lithium battery cell, the conducting strips are connected with the voltage stabilizing diode and the discharge resistor in series through a wire, copper sheets are embedded on the side walls of the two sides of the cover plate, and the copper sheets are electrically connected with the wire; the bar groove has been seted up to the upper end inner wall of shell, and the both ends of apron are provided with the slider that matches with the bar groove, the upper end of shell is seted up threaded hole, and the upper surface of apron has seted up the through-hole, threaded hole female connection has spacing bolt, and spacing bolt runs through the through-hole setting.

Preferably, the lower extreme four corners of shell all fixedly connected with supporting pad, and the lateral wall of shell has seted up a plurality of U-shaped grooves.

Preferably, a counter bore is formed in the upper surface, close to the through hole, of the cover plate, and the counter bore and the through hole are arranged coaxially.

Preferably, the upper surfaces of the limiting plate and the cover plate are provided with identification grooves.

Preferably, the side wall of the shell is provided with a plurality of obliquely arranged heat dissipation openings, and the shell is provided with a breast board close to the side wall of the heat dissipation openings.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, through setting up zener diode and discharge resistance, when electric core voltage is higher than zener diode's steady voltage, electric core passes through zener diode, and resistance discharges, falls to being less than behind zener diode steady voltage after electric core voltage discharges, and electric core meeting automatic stop discharges, through setting up a plurality of balanced subassemblies, can realize the balanced purpose of battery.

2. The utility model discloses, through setting up a plurality of apron cooperation conducting strips, can realize that a plurality of balanced subassemblies are parallelly connected, real battery is balanced, and on the other hand through setting up T shape draw-in groove cooperation T shape fixture block, can realize the combination of a plurality of batteries, improves the practicality of lithium cell to can not influence the protection effect of balanced subassembly to the battery.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

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

fig. 3 is a schematic view of the cover plate structure of the present invention.

In the figure: 1. a housing; 2. a lithium battery cell; 3. a T-shaped clamping groove; 4. a T-shaped fixture block; 5. a limiting plate; 6. connecting sheets; 7. a cover plate; 8. a voltage regulator diode; 9. a discharge resistor; 10. a conductive sheet; 11. a copper sheet; 12. a slider; 13. a limit bolt; 14. a support pad; 15. and a heat dissipation port.

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 simple lithium battery equalization device comprises a shell 1 and a plurality of lithium battery cores 2, wherein the plurality of lithium battery cores 2 are arranged in the shell 1, a plurality of equalization assemblies are fixedly connected to the inner wall of the shell 1, a T-shaped clamping groove 3 is formed in the side wall of one side of the shell 1, a T-shaped clamping block 4 is fixedly connected to the side plate, away from the T-shaped clamping groove 3, of the shell 1, a limiting plate 5 is fixedly connected to the upper end of the shell 1, a connecting sheet 6 is embedded in the limiting plate 5, the T-shaped clamping block 4 is matched with the T-shaped clamping groove 3, connection of the plurality of shells 1 can be achieved, the equalization assemblies can be limited by arranging the limiting plate 5 and the connecting sheet 6, and the equalization assemblies are not interfered to be connected with;

the balancing component comprises a cover plate 7, a cavity is arranged in the cover plate 7, a voltage stabilizing diode 8 and a discharge resistor 9 are fixedly connected in the cavity, two conducting strips 10 are embedded at the lower end of the cavity, the lower ends of the two conducting strips 10 are abutted against a lithium battery cell 2, the conducting strips 10 are connected with the voltage stabilizing diode 8 and the discharge resistor 9 in series through a wire, through the arrangement of the voltage stabilizing diode 8 and the discharge resistor 9, when the voltage of the lithium battery cell 2 is higher than the stable voltage of the voltage stabilizing diode 8, the lithium battery cell 2 discharges through the voltage stabilizing diode 8 and the discharge resistor 9, when the voltage of the lithium battery cell 2 is reduced to be lower than the stable voltage of the voltage stabilizing diode 8 after discharging, the lithium battery cell 2 automatically stops discharging, copper sheets 11 are embedded in the side walls of the two sides of the cover plate 7, and the copper; through setting up copper sheet 11, make a plurality of circuits that contain lithium cell electricity core 2, zener diode 8 and discharge resistance 9 establish ties, can realize the balanced purpose of battery, the bar groove has been seted up to the upper end inner wall of shell 1, and the both ends of apron 7 are provided with the slider 12 that matches with the bar groove, the upper end of shell 1 sets up threaded hole, and the upper surface of apron 7 has seted up the through-hole, threaded hole female connection has stop bolt 13, and stop bolt 13 runs through the through-hole setting, and apron 7 passes through bar groove and slider 12 card on shell 1, can carry on spacingly to electric core and the connection of a plurality of shells 1, and stop bolt 13 of deuterogamying can realize the fixed to a plurality of group batteries when 7 is fixed to the apron, and it is comparatively convenient to install and dismantle the combination.

The equal fixedly connected with supporting pad 14 in lower extreme four corners of shell 1, and the lateral wall of shell 1 has seted up a plurality of U-shaped grooves, through setting up supporting pad 14, can protect the corner of shell 1, through setting up the U-shaped groove, can enlarge the area of contact of shell 1 and air to improve the radiating effect of battery.

The counter bore has been seted up to the upper surface that apron 7 is close to the through-hole, and counter bore and through-hole coaxial setting, through setting up the counter bore, can be used for accomodating stop bolt 13, makes the outward appearance of battery more level and more smooth.

The upper surfaces of the limiting plate 5 and the cover plate 7 are provided with identification grooves, the identification grooves are used for marking the positive and negative poles of the battery, and the identification grooves are formed and are not prone to abrasion.

The lateral wall of shell 1 is seted up the thermovent 15 that a plurality of slopes set up, and shell 1 is close to thermovent 15 lateral wall and is provided with the breast board for supplementary electric core heat dissipation through setting up thermovent 15.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 simple lithium battery equalizing equipment, includes shell (1) and a plurality of lithium battery electricity core (2), and is a plurality of lithium battery electricity core (2) are located and set up its characterized in that in shell (1): the inner wall of the shell (1) is fixedly connected with a plurality of balance assemblies, a T-shaped clamping groove (3) is formed in the side wall of one side of the shell (1), a side plate, far away from the T-shaped clamping groove (3), of the shell (1) is fixedly connected with a T-shaped clamping block (4), the upper end of the shell (1) is fixedly connected with a limiting plate (5), and a connecting sheet (6) is embedded in the limiting plate (5);

the balancing assembly comprises a cover plate (7), a cavity is arranged in the cover plate (7), a voltage stabilizing diode (8) and a discharge resistor (9) are fixedly connected in the cavity, two conducting strips (10) are embedded at the lower end of the cavity, the lower ends of the two conducting strips (10) are abutted to the lithium battery cell (2), the conducting strips (10) are connected with the voltage stabilizing diode (8) and the discharge resistor (9) in series through a wire, copper sheets (11) are embedded in the side walls of the two sides of the cover plate (7), and the copper sheets (11) are electrically connected with the wire; the bar groove has been seted up to the upper end inner wall of shell (1), and the both ends of apron (7) are provided with slider (12) with the bar groove matching, the upper end of shell (1) is seted up threaded hole, and the upper surface of apron (7) has seted up the through-hole, threaded hole female connection has stop bolt (13), and stop bolt (13) run through the through-hole setting.

2. A simple lithium battery equalization device according to claim 1, characterized in that: the lower end four corners of the shell (1) are fixedly connected with supporting pads (14), and the side wall of the shell (1) is provided with a plurality of U-shaped grooves.

3. A simple lithium battery equalization device according to claim 1, characterized in that: the upper surface of the cover plate (7) close to the through hole is provided with a counter bore, and the counter bore and the through hole are coaxially arranged.

4. A simple lithium battery equalization device according to claim 1, characterized in that: the upper surfaces of the limiting plate (5) and the cover plate (7) are provided with identification grooves.

5. A simple lithium battery equalization device according to claim 1, characterized in that: a plurality of obliquely arranged heat dissipation ports (15) are formed in the side wall of the shell (1), and a baffle plate is arranged on the side wall, close to the heat dissipation ports (15), of the shell (1).