CN216529176U

CN216529176U - Storage battery with leakage protection structure

Info

Publication number: CN216529176U
Application number: CN202220910680.0U
Authority: CN
Inventors: 吕红艳; 倪志伟; 杨曙光; 马宝刚; 刘凤艳
Original assignee: Xinxiang Xindian Power Technology Co ltd
Current assignee: Xinxiang Xindian Power Technology Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-05-13
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a storage battery with an electric leakage protection structure, which comprises a shell and an upper cover plate, wherein the upper cover plate is arranged at the top end of the shell, a positive pole is arranged on one side of the top end of the upper cover plate, a negative pole is arranged on the other side of the top end of the upper cover plate, cable locking structures are arranged on the surfaces of the positive pole and the negative pole, a resin cross-shaped insulating frame is arranged at the bottom of the shell, a plurality of groups of battery panel assemblies are arranged in the shell and are connected in series, a BMS circuit board is arranged at the top of the upper cover plate, heat dissipation fins are arranged on two inner walls of the shell, and an insulating inner container is arranged at the bottom of the shell on one side of the heat dissipation fins. The utility model not only ensures the operation safety of the battery pack under the condition of large current charging and discharging, reduces the leakage quantity of the storage battery, prolongs the service life of the storage battery, but also has quick and convenient installation, improves the heat dissipation performance of the storage battery and reduces the working temperature of the storage battery.

Description

Storage battery with leakage protection structure

Technical Field

The utility model relates to the technical field of storage batteries, in particular to a storage battery with a leakage protection structure.

Background

A secondary battery is a device for directly converting chemical energy into electrical energy, and is a battery designed to be rechargeable, and recharging is achieved through a reversible chemical reaction, and is generally referred to as a lead-acid battery, which is one of batteries and belongs to a secondary battery. The working principle is as follows: when the electric vehicle is charged, the external electric energy is utilized to regenerate the internal active substances, the electric energy is stored as chemical energy, and the chemical energy is converted into the electric energy again to be output when the electric vehicle needs to be discharged.

The storage battery on the market is various, the use requirements of people can be basically met, certain defects still exist, the existing storage battery has serious electric leakage and electric energy attenuation under the condition of not using for a long time, mainly, active substances in the storage battery fall off, positive and negative plates are linked to generate a loop to consume electricity, meanwhile, electronic components such as automobile electric appliances, wire harnesses, sensors, controllers and actuators and circuit grounding also can cause electric leakage to cause battery power loss, and the service life of the storage battery is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a storage battery with a leakage protection structure, which aims to solve the problem that the storage battery is easy to generate leakage when the storage battery is not used for a long time in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a battery with earth leakage protection structure, includes casing, upper cover plate, the upper cover plate install in the top of casing, the anodal post is installed to one side on upper cover plate top, the negative pole post is installed to the opposite side on upper cover plate top, the surface of anodal post and negative pole post all is provided with cable locking structure, resin cross insulator bracket is installed to the bottom of casing, the internally mounted of casing has multiunit panel components, the multiunit the panel components establish ties each other, the BMS circuit board is installed at the top of upper cover plate, all install radiating fin on two inner walls of casing, insulating inner bag is installed to the casing bottom of radiating fin one side, scribble the sealing adhesive layer on the outer wall of panel components, it has the insulating layer to bond through the sealing adhesive layer on the outer wall of panel components.

Preferably, all be fixed with the guard plate on the both sides outer wall of casing, the guard plate is provided with two sets ofly, be fixed with the baffle on the inner wall of guard plate one side.

Preferably, the cable locking structure comprises a hoop, the hoop can be buckled on the outer peripheral surface of the positive pole, a connecting piece is fixed on one side of the bottom end of the hoop, and a cable positioning frame is installed on the top end of the connecting piece through a bolt.

Preferably, a positioning bolt penetrates through the top end of the anchor ear, and a nut is mounted at one end of the surface of the positioning bolt.

Preferably, the inner wall of the protection plate between the baffles is fixed with a main radiating fin.

Preferably, the main heat dissipation fins are arranged in at least four groups, and the four groups of main heat dissipation fins are in a symmetrical structure relative to the central axis of the protection plate.

Compared with the prior art, the utility model has the beneficial effects that: the storage battery with the leakage protection structure not only ensures the operation safety of the battery pack under the condition of large current charging and discharging, reduces the leakage quantity of the storage battery and prolongs the service life of the storage battery, but also is quick and convenient to install, improves the heat dissipation performance of the storage battery and reduces the working temperature of the storage battery;

(1) through the mutually matched structure of the resin cross insulating frame and the insulating layer and the like, the resin cross insulating frame divides the interior of the shell into a plurality of groups of spaces, thereby avoiding the short circuit condition between independent batteries, playing a role in leakage protection between each independent battery pack, forming insulating shielding on the batteries through the insulating layer, simultaneously protecting the electricity utilization safety after the battery pack components are connected in series by using the BMS circuit board, ensuring that the battery packs can be charged and discharged with large current, ensuring the operation safety of the battery packs under the condition of charging and discharging with large current, reducing the leakage quantity of the storage battery and prolonging the service life of the storage battery;

(2) the wiring cable penetrates through the space between the connecting sheet and the cable positioning frame through the mutually matched structures such as the cable positioning frame and the nut, and is locked through the two groups of bolts on the upper surface of the cable positioning frame;

(3) through being provided with the structure of mutually supporting such as battery board subassembly and guard plate, conduct the heat of casing inside to guard plate, baffle through the battery board subassembly on for heat in the casing is derived fast, promotes the heat dispersion of battery, reduces the operating temperature of battery.

Drawings

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

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

FIG. 3 is a schematic front view of the cross-sectional structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a schematic top view of the cable locking arrangement of the present invention;

in the figure: 1. a housing; 2. an upper cover plate; 201. a BMS circuit board; 3. a positive post; 4. a negative pole post; 5. a cable locking structure; 501. hooping; 502. positioning the bolt; 503. a nut; 504. connecting sheets; 505. a cable positioning frame; 6. a protection plate; 601. a baffle plate; 7. a primary heat sink sheet; 8. a resin cross insulating frame; 9. a battery board assembly; 10. an insulating inner container; 11. a heat dissipating fin; 12. an insulating layer; 13. and (6) sealing the adhesive layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a storage battery with a leakage protection structure comprises a shell 1 and an upper cover plate 2, wherein the upper cover plate 2 is installed at the top end of the shell 1, a positive pole post 3 is installed on one side of the top end of the upper cover plate 2, and a negative pole post 4 is installed on the other side of the top end of the upper cover plate 2;

the surfaces of the positive pole 3 and the negative pole 4 are both provided with cable locking structures 5, each cable locking structure 5 comprises an anchor ear 501, each anchor ear 501 can be buckled on the outer peripheral surface of the positive pole 3, a positioning bolt 502 penetrates through the top end of each anchor ear 501, and a nut 503 is installed at one end of the surface of each positioning bolt 502;

a connecting sheet 504 is fixed on one side of the bottom end of the hoop 501, a cable positioning frame 505 is mounted at the top end of the connecting sheet 504 through bolts, and a worker can penetrate a connection cable between the connecting sheet 504 and the cable positioning frame 505 and lock the connection cable through two groups of bolts on the upper surface of the cable positioning frame 505;

the hoop 501 is buckled on the positive pole column 3 or the negative pole column 4, so that the electric connection work of the cable is completed, and the hoop 501 is locked and applied with force through the matching of the nut 503 and the positioning bolt 502, so that the installation is rapid and convenient, and the use convenience of the storage battery is enhanced;

the bottom of the shell 1 is provided with a resin cross insulating frame 8, a plurality of groups of battery panel assemblies 9 are arranged in the shell 1, the plurality of groups of battery panel assemblies 9 are connected in series, each group of battery panel assemblies 9 are connected in series, the capacity of the battery is improved, the resin cross insulating frame 8 divides the interior of the shell 1 into a plurality of groups of spaces, the short circuit condition among independent batteries is avoided, and the leakage protection effect is achieved among the independent battery groups;

the top of the upper cover plate 2 is provided with a BMS circuit board 201, the two inner walls of the shell 1 are provided with radiating fins 11, the bottom of the shell 1 at one side of the radiating fins 11 is provided with an insulating inner container 10, and when the storage battery works, heat on the battery panel assembly 9 is transferred to the shell 1 through the radiating fins 11;

the outer walls of the battery panel assemblies 9 are coated with a sealing adhesive layer 13, the outer walls of the battery panel assemblies 9 are bonded with insulating layers 12 through the sealing adhesive layer 13, and the outer peripheral surfaces of the plurality of groups of battery panel assemblies 9 are bonded with one insulating layer 12 through the sealing adhesive layer 13, namely the insulating layers 12 are tightly attached to the outer walls of the battery panel assemblies 9;

the battery is insulated and shielded by the insulating layer 12, and meanwhile, the BMS circuit board 201 is used for protecting the electricity utilization safety of the battery panel assembly 9 after being connected in series, so that the battery pack can be charged and discharged at a large current, the operation safety of the battery pack under the condition of charging and discharging at the large current can be ensured, the leakage quantity of the storage battery is reduced, and the service life of the storage battery is prolonged;

all be fixed with guard plate 6 on casing 1's the both sides outer wall, guard plate 6 is provided with two sets ofly, be fixed with baffle 601 on the inner wall of guard plate 6 one side, be fixed with main radiating fin 7 on the 6 inner walls of guard plate between the baffle 601, main radiating fin 7 sets up to four groups at least, four groups of main radiating fin 7 are symmetrical structure about the axis of guard plate 6, guard plate 6 and main radiating fin 7 through on the 1 outer wall of casing can conduct the heat on radiating fin 11, make the heat in casing 1 derive fast, promote the heat dispersion of battery.

When the battery pack is used, firstly, the inside of the shell 1 is divided into a plurality of groups of spaces by the resin cross-shaped insulating frame 8, the short circuit condition among independent batteries is avoided, the leakage protection effect is achieved among the independent battery packs, each group of battery panel assemblies 9 are connected in series, the capacity of the battery is improved, one insulating layer 12 is bonded on the outer peripheral surface of each group of battery panel assemblies 9 through the sealant layer 13, namely the insulating layer 12 is tightly attached to the outer wall of each battery panel assembly 9, the batteries are insulated and shielded through the insulating layer 12, meanwhile, the electricity safety after the battery panel assemblies 9 are connected in series is protected by the BMS circuit board 201, the high current of the battery pack is ensured, the operation safety of the battery pack under the high-current charging and discharging conditions can be ensured, the leakage amount of the storage battery is reduced, and the service life of the storage battery is prolonged;

the staff passes the wiring cable from connecting piece 504 and cable locating rack 505 between to carry out the locking through two sets of bolts of cable locating rack 505 upper surface, buckle staple bolt 501 on positive post 3 or negative pole post 4 afterwards, accomplish the electric connection work of cable promptly, and through the cooperation of nut 503 and positioning bolt 502, lock the application of force to staple bolt 501, the installation is swiftly convenient, the use convenience of reinforcing battery.

Claims

1. A kind of storage battery with earth leakage protective structure, characterized by that: the battery pack comprises a shell (1) and an upper cover plate (2), wherein the upper cover plate (2) is installed on the top end of the shell (1), a positive pole (3) is installed on one side of the top end of the upper cover plate (2), a negative pole (4) is installed on the other side of the top end of the upper cover plate (2), cable locking structures (5) are arranged on the surfaces of the positive pole (3) and the negative pole (4), a resin cross insulating frame (8) is installed at the bottom of the shell (1), a plurality of groups of battery panel assemblies (9) are installed inside the shell (1), the plurality of groups of battery panel assemblies (9) are connected in series, a BMS circuit board (201) is installed at the top of the upper cover plate (2), heat dissipation fins (11) are installed on two inner walls of the shell (1), and an insulating inner container (10) is installed at the bottom of the shell (1) on one side of the heat dissipation fins (11), the battery plate assembly is characterized in that a sealing adhesive layer (13) is coated on the outer wall of the battery plate assembly (9), and an insulating layer (12) is bonded on the outer wall of the battery plate assembly (9) through the sealing adhesive layer (13).

2. A secondary battery with a leakage protecting structure according to claim 1, characterized in that: all be fixed with guard plate (6) on the both sides outer wall of casing (1), guard plate (6) are provided with two sets ofly, be fixed with baffle (601) on the inner wall of guard plate (6) one side.

3. A secondary battery with a leakage protecting structure according to claim 1, characterized in that: the cable locking structure (5) comprises a hoop (501), the hoop (501) can be buckled on the outer peripheral surface of the positive pole (3), a connecting piece (504) is fixed on one side of the bottom end of the hoop (501), and a cable positioning frame (505) is installed on the top end of the connecting piece (504) through bolts.

4. A secondary battery with a leakage protecting structure according to claim 3, characterized in that: and a positioning bolt (502) penetrates through the top end of the hoop (501), and a nut (503) is installed at one end of the surface of the positioning bolt (502).

5. A secondary battery with a leakage protecting structure according to claim 2, characterized in that: and main radiating fins (7) are fixed on the inner wall of the protective plate (6) between the baffles (601).

6. A secondary battery with a leakage protecting structure according to claim 5, wherein: the main radiating fins (7) are at least arranged into four groups, and the four groups of the main radiating fins (7) are in a symmetrical structure relative to the central axis of the protection plate (6).