CN219321505U - Battery pack protection device - Google Patents

Abstract

The utility model relates to the technical field of energy storage protection equipment, and aims to provide a battery pack protection device. The battery pack protection device can limit and fix each battery in the battery pack and has good vibration reduction effect. The battery pack protection device includes: the device comprises a shell, a limiting mechanism and a vibration reduction mechanism; the shell is used for placing a battery pack; the limiting mechanism is arranged in the shell and comprises a plurality of limiting assemblies arranged at intervals, and each limiting assembly is provided with one battery in the battery pack; the vibration damping mechanism comprises a plurality of vibration damping seats which are arranged at the bottom end of the shell. The battery pack protection device solves the problems that in the prior art, the battery pack protection device can only limit and fix the whole battery pack, adjacent batteries still collide with each other, vibration reduction is carried out through the rubber plate, the effect is poor, and the battery pack is still likely to generate fire or thermal runaway.

Description

Battery pack protection device

Technical Field

The utility model relates to the technical field of energy storage protection equipment, in particular to a battery pack protection device.

Background

The energy storage battery pack is the most critical component in an electrochemical energy storage power station and comprises a plurality of batteries which are arranged in a certain sequence, and electric energy is stored through the batteries. The battery pack can lead to battery pack life to reduce when vibration or impact, can lead to battery pack to fire when serious, takes place the thermal runaway situation, and then influences the safety of whole electrochemical energy storage power station.

Therefore, in order to ensure the use safety of the battery pack and prevent the occurrence of thermal runaway, it is generally necessary to place the battery pack in a protection device for protection. The existing protection device is generally in a shape of a housing, and the battery pack is placed in the housing to prevent external impact. After the battery pack is placed in the shell, the whole battery pack can be limited and fixed through four limiting strips which are in a groined shape, and a rubber plate is arranged between the limiting strips and the top surface of the battery pack for vibration reduction. Because current stop gear can only carry out spacingly to the battery package is whole, still can bump or rub between the adjacent battery after the emergence is strikeed to the rubber slab can not carry out vibration damping protection to the bottom surface of battery package, and vibration damping effect is relatively poor. Therefore, when the existing battery pack protection device is used for protection, the battery pack still has the hidden trouble of fire or thermal runaway.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects that the battery pack protection device in the prior art can only limit and fix the whole battery pack, adjacent batteries still collide with each other, vibration is damped through the rubber plate, the effect is poor, and the battery pack is likely to generate fire or thermal runaway, so that the battery pack protection device with good limiting and fixing effects and vibration damping effects can be provided for each battery in the battery pack.

To this end, the present utility model provides a battery pack protection device comprising:

the shell is internally used for placing a battery pack;

the limiting mechanism is arranged in the shell and comprises a plurality of limiting assemblies arranged at intervals, and each limiting assembly is internally provided with one battery in the battery pack;

the vibration reduction mechanism comprises a plurality of vibration reduction seats, and the vibration reduction seats are arranged at the bottom end of the shell.

Optionally, the limiting assembly includes: the battery fixing device comprises a limiting shell and a limiting top plate, wherein the limiting shell is fixedly connected with the shell, the limiting shell is provided with an accommodating cavity capable of accommodating the battery, and the limiting top plate is connected with the top end of the limiting shell in a detachable mode.

Optionally, the limit housing includes: the battery comprises two limiting end plates and two limiting side plates, wherein the two limiting end plates are arranged at intervals in the length direction of the battery in parallel, the two limiting side plates are arranged at intervals in the width direction of the battery in parallel, the two ends of each limiting side plate are connected with one end of each limiting end plate respectively, the two limiting end plates and the two limiting side plates surround to form the accommodating cavity, and the two ends of each limiting top plate are connected with the top surfaces of the two limiting end plates in a detachable mode respectively.

Optionally, a first buffer layer is arranged on the inner wall of the shell top plate, and the first buffer layer is made of a stamped aluminum plate, a glass fiber composite material or a carbon fiber composite material; the inner wall of casing bottom plate is provided with the second buffer layer, the second buffer layer adopts punching press steel sheet, extrusion aluminium alloy, aluminum plate or cast aluminium.

Optionally, a reinforcing rib is arranged between the bottom plate of the shell and the limiting mechanism, and the length direction of the reinforcing rib is perpendicular to the length direction of the battery.

Optionally, the stop gear includes ten stop subassembly, ten stop subassembly is arranged into two rows in the casing, every row is provided with five stop subassembly.

Optionally, an exhaust nozzle is arranged on the side wall of the shell, and a sealing element is arranged on the exhaust nozzle.

Optionally, a pressure equalization valve is provided at the exhaust nozzle, the pressure equalization valve burst pressure being [0.5,1.0] pounds per square foot.

Optionally, four heat dissipation openings are formed in the side wall of the shell, and the four heat dissipation openings are symmetrically arranged on the two side walls of the shell along the length direction of the battery.

Optionally, the vibration reduction mechanism further comprises a base, the shell is fixedly arranged on the base, the vibration reduction bases are four in number, and the vibration reduction bases are symmetrically arranged at the bottom ends of the base in pairs.

The utility model has the following advantages:

1. according to the battery pack protection device provided by the utility model, the battery pack is arranged in the shell, and each limiting component in the limiting mechanism can limit one battery of the battery pack, so that each battery can be independently limited, the limiting effect is good, and adjacent batteries cannot be contacted and collide. Meanwhile, the vibration damping seat in the vibration damping mechanism is arranged at the bottom end of the shell, so that vibration damping and buffering can be carried out on the whole battery pack, and the vibration damping effect is good. Through setting up stop gear and damping mechanism, make the battery package protection more effective, the probability of breaking down is lower, and life is longer.

2. The battery pack protection device provided by the utility model comprises a limit shell and a limit top plate, wherein the limit shell comprises two limit end plates and two limit side plates, a battery is placed in a containing cavity formed by surrounding the two limit end plates and the two limit side plates, and the limit top plate is connected with the top end of the limit shell to fix, limit and protect the battery. The limiting assembly is simple in structure and good in limiting effect.

3. According to the battery pack protection device provided by the utility model, the first buffer layer is arranged on the inner wall of the top plate of the shell, and is preferably made of a punched aluminum plate, a glass fiber composite material or a carbon fiber composite material, so that the battery pack protection device is light in material and can play a role in buffering, and the battery pack is prevented from being damaged due to contact and collision with the shell; the inner wall of casing bottom plate is provided with the second buffer layer, and the second buffer layer is preferably punching press steel sheet, extrusion aluminium alloy, aluminum plate or cast aluminium, and rigidity is bigger, bearing capacity is stronger and can play the cushioning effect equally, prevents that battery package bottom vibration from colliding with the casing contact and damaging.

4. According to the battery pack protection device provided by the utility model, the reinforcing ribs are arranged between the bottom plate of the shell and the limiting mechanism, so that the bearing capacity of the shell is improved, and a battery pack with larger weight can be placed.

5. According to the battery pack protection device provided by the utility model, the exhaust nozzle is arranged on the side wall of the shell, and when the battery pack is out of control, air flow can be guided away from the exhaust nozzle, so that the safety of surrounding staff is ensured.

6. According to the battery pack protection device provided by the utility model, the shell is provided with four heat dissipation openings and is symmetrically arranged along the length direction of the battery. The heat dissipation performance of the device is improved by arranging the heat dissipation opening, and the service life of the battery is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a battery pack protection device of the present utility model;

FIG. 2 is a cross-sectional view of the hidden vibration reduction mechanism of the battery pack protection device of the present utility model;

fig. 3 is a top cross-sectional view of the hidden vibration reduction mechanism of the battery pack protection device of the present utility model.

Reference numerals illustrate:

1. a housing;

201. a limit shell 2011, limit end plates 2012, limit side plates 202 and limit top plates;

3. damping mechanism 301, damping seat 302, base;

4. a first buffer layer;

5. a second buffer layer;

6. reinforcing ribs;

7. a seal;

8. and a heat radiation port.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1, a preferred embodiment of the battery pack protecting device according to the present utility model can protect a battery pack. And each battery can be limited and fixed independently, so that the battery pack is prevented from being damaged and fired due to collision between adjacent batteries. Meanwhile, vibration can be effectively damped, and vibration is prevented from being transmitted to the battery pack, so that the battery pack is prevented from being damaged.

The battery pack protection device includes: a shell 1, a limiting mechanism and a vibration reduction mechanism 3. Wherein the shell 1 is in a rectangular box shape, and the inside of the shell is used for placing a battery pack. In this embodiment, the battery pack includes ten batteries in total, and the ten batteries are arranged in two rows and five columns. The inner wall of the top plate of the shell 1 is provided with a first buffer layer 4, and the first buffer layer 4 is made of a punched aluminum plate, a glass fiber composite material or a carbon fiber composite material. The inner wall of the bottom plate of the shell 1 is provided with a second buffer layer 5, and the second buffer layer 5 is made of stamped steel plates, extruded aluminum profiles, aluminum plates or cast aluminum. The inner wall of the side plate of the shell 1 is provided with a third buffer layer, and the third buffer layer is made of materials such as industrial rubber pads, heat-insulating cotton or PE foam and has high temperature resistance and buffer function. Specifically, in this embodiment, the first buffer layer 4 is made of a carbon fiber composite material, so that the weight is light, and the top plate is convenient to disassemble and assemble; the second buffer layer 5 is made of a punched steel plate, so that the rigidity is high, and the bearing capacity is high; the third buffer layer is made of PE foam.

In addition, an exhaust nozzle is provided on the side wall of the housing 1, and the exhaust nozzle is made of a high-temperature material such as steel or ceramic. The exhaust nozzle is provided with a seal 7 and a pressure equalization valve at the exhaust nozzle, the pressure equalization valve burst pressure being [0.5,1.0] pounds per square foot. In particular, the exhaust nozzle in this embodiment is made of ceramic, the seal 7 is preferably a gland nut, and the pressure balance valve has a burst pressure of 0.5 psi. By arranging the exhaust nozzle, after the battery pack in the shell 1 is out of control, air flow and material flow can be guided away, so that the battery pack is far away from workers, and harm is reduced. The sealing nut can seal the exhaust nozzle when the battery pack works normally, and when the temperature and the pressure increase, the sealing nut can be heated to melt or be extruded to deform to drop from the exhaust nozzle, so that the exhaust nozzle is opened.

Further, four heat dissipation openings 8 are further formed in the side wall of the casing 1, and the four heat dissipation openings 8 are symmetrically arranged on the two side walls of the casing 1 along the length direction of the battery. In this embodiment, two heat dissipation ports 8 and the exhaust nozzle are disposed on the same side wall of the housing 1 and distributed on two sides of the exhaust nozzle. The heat dissipation port 8 is formed by a plurality of exhaust holes with the same size. The heat dissipation area of the device can be increased by arranging the heat dissipation port 8, and the heat dissipation performance is improved.

The limiting mechanism is arranged in the shell 1 and comprises a plurality of limiting assemblies arranged at intervals, and each limiting assembly is provided with one battery in the battery pack. Because the battery pack in this embodiment includes ten batteries, therefore, stop gear includes ten spacing subassemblies, and spacing subassembly's setting mode is the same with the mode of arranging of battery. The ten limiting assemblies are arranged in two rows in the shell 1, and each row is provided with five limiting assemblies.

As shown in fig. 2, the limiting assembly includes: the limiting shell 201 and the limiting top plate 202 are fixedly connected with the shell 1, the limiting shell 201 is provided with a containing cavity capable of containing batteries, and the limiting top plate 202 is connected with the top end of the limiting shell 201 in a detachable mode. Specifically, as shown in fig. 3, the limit housing 201 includes: two spacing end plates 2011 and two spacing curb plates 2012, two spacing end plates 2011 are along the length direction interval and parallel arrangement of battery, two spacing curb plates 2012 are along the width direction interval and parallel arrangement of battery, the both ends of spacing curb plate 2012 are connected with the one end of two spacing end plates 2011 respectively, two spacing end plates 2011 and two spacing curb plates 2012 surround and form the chamber that holds, the both ends of spacing roof 202 are connected through the bolt tear-open with the top surface of two spacing end plates 2011 respectively. The bottom surfaces of the two limiting end plates 2011 are fixedly connected with the second buffer layer 5 through bolts, and cavities are formed in the limiting end plates 2011 to accommodate the bolts. After the battery is placed in the accommodating cavity, the battery is fixedly connected with the limiting end plate 2011 through bolts.

In addition, a reinforcing rib 6 is arranged between the bottom plate of the shell 1 and the limiting mechanism, and the length direction of the reinforcing rib 6 is perpendicular to the length direction of the battery. Specifically, in this embodiment, four reinforcing ribs 6 are provided, two reinforcing ribs 6 are provided at the bottom end of each row of cells, and the carrying capacity of the casing 1 is improved by providing the reinforcing ribs 6.

The vibration damping mechanism 3 includes a plurality of vibration damping seats 301, and the vibration damping seats 301 are disposed at the bottom end of the housing 1. The housing 1 is cushioned and damped by the damping mount 301 to dampen vibrations transmitted to the battery pack within the housing 1. The vibration damping mechanism 3 further includes a base 302, and the housing 1 is fixedly disposed on the base 302. Specifically, in this embodiment, the base 302 is flat, and the housing 1 is fixedly disposed thereon, and the vibration-damping seats 301 are symmetrically disposed at the bottom ends of the base 302 in pairs. The vibration damper 301 is provided with a spring therein, and vibration can be damped by the vibration of the spring.

The following describes the working principle of the battery pack protection device provided in this embodiment as follows:

firstly, the top plate of the shell 1 is opened, the limiting components are arranged in two rows and five columns in the shell 1 and are connected with the second buffer layer 5 of the bottom plate of the shell 1, then ten batteries in the battery pack are correspondingly placed in the accommodating cavities of the ten limiting components and are fixedly connected with the limiting end plate 2011 through bolts, and then the limiting top plate 202 is fixedly connected with the limiting end plate 2011, so that the fixing of the battery pack is completed. After the top plate of the housing 1 is covered, the housing 1 is placed on the base 302.

During the use process of the battery pack, the battery is prevented from shifting through the limiting component and collision occurs; and the first buffer layer 4 and the second buffer layer 5 can buffer the top or the bottom of the battery pack, and can also buffer and damp through the damping seat 301 at the bottom of the shell 1. The battery pack is prevented from being damaged, knocked or thermally run away due to collision or vibration.

In addition, the battery pack is connected with the exhaust nozzle during normal use, plays a sealing role, and when the thermal runaway phenomenon occurs, the sealing nut falls off from the exhaust nozzle, and air flow is guided away from the exhaust nozzle, so that the damage to surrounding staff caused by the scattered air flow is prevented.

In other embodiments, the first buffer layer 4 may also be made of a stamped aluminum plate or a glass fiber composite material; the second buffer layer 5 can also be made of extruded aluminum profile or aluminum plate or cast aluminum; the third buffer layer can also be made of industrial rubber pad and heat-insulating cotton.

In other embodiments, the exhaust nozzle may be made of other high temperature resistant materials such as steel; the burst pressure of the pressure equalization valve may also be 0.8 psi, 1.0 psi, etc.

In other embodiments, the number of the limiting components in the limiting mechanism can be six, eight, twelve, etc., the number of the limiting components is selected according to the number of the batteries in the battery pack, and the arrangement and placement modes of the limiting components are consistent with the arrangement modes of the batteries.

In other embodiments, the number of the reinforcing ribs 6 may be one or two, and the number may be adjusted according to the weight of the battery pack, the area, the strength, and other parameters of the reinforcing ribs 6.

In other embodiments, the number of vibration reduction seats 301 may be six, eight, etc., and may be adjusted in number according to the area of the base 302 or the area of the housing 1.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. A battery pack protection device, comprising:

a housing (1), wherein the housing (1) is used for accommodating a battery pack;

the limiting mechanism is arranged in the shell (1) and comprises a plurality of limiting assemblies arranged at intervals, and each limiting assembly is internally provided with one battery in the battery pack;

the vibration reduction mechanism (3), the vibration reduction mechanism (3) comprises a plurality of vibration reduction seats (301), and the vibration reduction seats (301) are arranged at the bottom end of the shell (1).

2. The battery pack guard of claim 1, wherein the limit assembly comprises: spacing casing (201) and spacing roof (202), spacing casing (201) with casing (1) fixed connection, just spacing casing (201) have can place the chamber that holds of battery, spacing roof (202) with the top of spacing casing (201) is dismantled and is connected.

3. The battery pack guard of claim 2, wherein the limit housing (201) comprises: two spacing end plates (2011) and two spacing curb plates (2012), two spacing end plates (2011) are followed length direction interval and parallel arrangement of battery, two spacing curb plates (2012) are followed width direction interval and parallel arrangement of battery, the both ends of spacing curb plate (2012) respectively with two one end of spacing end plate (2011) is connected, two spacing end plate (2011) and two spacing curb plate (2012) surround and form hold the chamber, the both ends of spacing roof (202) respectively with two the top surface of spacing end plate (2011) is dismantled and is connected.

4. The battery pack protection device according to claim 1, wherein a first buffer layer (4) is arranged on the inner wall of the top plate of the shell (1), and the first buffer layer (4) is made of a stamped aluminum plate, a glass fiber composite material or a carbon fiber composite material; the inner wall of casing (1) bottom plate is provided with second buffer layer (5), second buffer layer (5) adopt punching press steel sheet, extrusion aluminium alloy, aluminum plate or cast aluminium.

5. The battery pack protection device according to claim 4, wherein a reinforcing rib (6) is provided between the bottom plate of the housing (1) and the limit mechanism, and the length direction of the reinforcing rib (6) is perpendicular to the length direction of the battery.

6. The battery pack protection device according to claim 1, wherein the limit mechanism comprises ten limit assemblies, the ten limit assemblies being arranged in two rows within the housing (1), each row being provided with five limit assemblies.

7. The battery pack protection device according to claim 1, characterized in that an exhaust nozzle is provided on a side wall of the housing (1), and a seal (7) is provided on the exhaust nozzle.

8. The battery pack protection device of claim 7, wherein a pressure equalization valve is provided at said vent nozzle, said pressure equalization valve having a burst pressure of [0.5,1.0] pounds per square foot.

9. The battery pack protection device according to claim 7, wherein four heat dissipation openings (8) are formed in the side wall of the housing (1), and the four heat dissipation openings (8) are symmetrically arranged on the two side walls of the housing (1) in pairs along the length direction of the battery.

10. The battery pack protection device according to any one of claims 1 to 9, wherein the vibration reduction mechanism (3) further comprises a base (302), the housing (1) is fixedly arranged on the base (302), and the vibration reduction seats (301) are symmetrically arranged at the bottom ends of the base (302) in pairs.

Images