JP3242101U - battery pack protector - Google Patents

Abstract

A battery pack protection device as an energy storage protection device. A battery pack protection device can be fixed to each battery of the battery pack with limited positions, and is highly effective in damping vibration. The battery pack protection device described above includes a case 1 used to place the battery pack, and a plurality of stopper components installed in the case and spaced apart from each other. It includes a stopper mechanism provided with one battery of the pack and a vibration damping mechanism 3 with a plurality of vibration damping mounts provided at the lower end of the case. In the prior art, the battery pack protection device can only restrict and fix the position of the entire battery pack, which solves the problem of adjacent batteries colliding with each other and causing fire or thermal runaway of the battery pack. [Selection drawing] Fig. 1

Description

This utility model relates to the technical field of energy storage protection devices, specifically to battery pack protection devices.

An energy storage battery pack is the most important component in an electrochemical energy storage power plant, which consists of a plurality of batteries arranged in a certain sequence, and stores electrical energy by means of batteries. When the battery pack is subjected to vibrations and shocks, the life of the battery pack is shortened, and in severe cases, it leads to ignition and thermal runaway, further affecting the safety of the entire electrochemical energy storage power plant.

Therefore, in order to ensure the safety of the battery pack and prevent thermal runaway, it is generally necessary to arrange a protection device to protect the battery pack. Conventional protection devices are generally case-like, and the battery pack is placed in the case to prevent external shocks. When the battery pack is placed in the case, the position of the entire battery pack is restricted and fixed by four grid-shaped stopper bars, and a rubber plate is installed between the stopper bars and the upper surface of the battery pack to dampen vibrations. can do. Conventional stopper mechanisms can only limit the position of the entire battery pack, so collisions and friction occur between adjacent batteries after an impact occurs, and the rubber plate cannot protect the bottom surface of the battery pack by damping vibrations. and the effect of vibration damping is low. Therefore, when protected by conventional battery pack protection devices, the battery pack is still at risk of fire or thermal runaway.

Therefore, the technical problem to be solved by the present utility model is that the prior art battery pack protection device can only restrict and fix the position of the entire battery pack, and the adjacent batteries still collide with each other. , The vibration damping effect of the rubber plate is low, and the battery pack may catch fire or thermal runaway. It is an object of the present invention to provide a battery pack protection device with a high

Therefore, this utility model is
a case for placing the battery pack;
a stopper mechanism mounted on said case and including a plurality of spaced apart stopper components, each said stopper component being provided with one battery of said battery pack;
and a vibration damping mechanism comprising a plurality of vibration damping mounts provided at the lower end of the case.

Optionally, said stopper component comprises a stopper cover fixedly connected to said case and comprising a receiving cavity in which said battery can be placed, and a stopper detachably connected to a top end of said stopper cover. Including the top plate.

Optionally, said stopper cover comprises two stopper end plates parallel and spaced apart along the length of said battery and parallel and spaced apart along the width of said battery. and two stopper side plates installed in the same direction, both ends of the stopper side plates are respectively connected to one ends of the two stopper end plates, and the two stopper end plates are connected to the two stopper side plates. Enclosing to form the receiving cavity, both ends of the stopper top plate are respectively detachably connected to the upper surfaces of the two stopper end plates.

Optionally, the inner wall of the top plate of the case is provided with a first buffer layer made of pressed aluminum plate, glass fiber composite or carbon fiber composite, and the inner wall of the bottom plate of the case is , a pressed steel plate, an extruded aluminum profile, an aluminum plate or an aluminum casting is provided.

Optionally, a reinforcing rib is provided between the bottom plate of the case and the stopper mechanism, the length direction of which is perpendicular to the length direction of the battery.

Optionally, said stopper mechanism comprises ten said stopper components arranged in said case in two rows, five being installed in each row.

Optionally, a side wall of said case is provided with an exhaust nozzle on which a sealing member is mounted.

Optionally, the exhaust nozzle is provided with a pressure equalization valve having a burst pressure of 0.5-1.0 pounds per square inch.

Optionally, four heat dissipation holes are opened in the side wall of the case, and two side walls of the case are symmetrically installed two by two along the length direction of the battery.

Optionally, the vibration damping mechanism further includes a pedestal to which the case is fixed, and the vibration damping mounts are symmetrically installed in total four, two at the lower end of the pedestal. there is

This utility model has the following advantages.

1. In the battery pack protection device provided by the present utility model, the battery pack is installed in the case, and each stopper component in the stopper mechanism can limit the position of one of the batteries of the battery pack, so that each battery can be individually position-limited and the position Good limiting effect, no contact or collision between adjacent batteries. At the same time, in the vibration damping mechanism, since the vibration damping mount is provided at the lower end of the case, the vibration of the entire battery pack can be damped and buffered, and the vibration damping effect is good. By providing a stopper mechanism and a vibration damping mechanism, the battery pack is more effectively protected, reducing the probability of failure and extending its life.

2. In the battery pack protection device provided by the present utility model, the stopper component has a stopper cover and a stopper top plate, the stopper cover has two stopper end plates and two stopper side plates, and the battery has two stopper end plates and two stopper side plates. It is housed in a housing cavity formed by surrounding the stopper side plate, and the stopper top plate is connected to the uppermost end of the stopper cover to fix, position-limit and protect the battery. Such a stopper component has a simple structure and a good stopper effect.

3. The battery pack protection device provided by this utility model is provided with a first buffer layer on the inner wall of the case top plate, and the first buffer layer is made of pressed aluminum plate, glass fiber composite or carbon fiber composite. Preferably, the material is light and has a cushioning effect, so that the battery pack can be prevented from being damaged due to contact and collision with the case. , pressed steel plate, extruded aluminum profile, aluminum plate or aluminum casting is preferable, the rigidity is higher, the load-bearing capacity is stronger, as well as the bottom of the battery pack vibrating and contacting the case and colliding will be damaged. It is possible to exert a cushioning action to prevent the storage.

4. The battery pack protection device provided by this utility model has reinforcing ribs between the bottom plate of the case and the stopper mechanism to improve the load bearing capacity of the case and enable the placement of heavier battery packs.

5. The battery pack protection device provided by this utility model is equipped with an exhaust nozzle on the side wall of the case, and in the event of thermal runaway of the battery pack, the airflow is guided from the exhaust nozzle to ensure the safety of surrounding staff. can.

6. In the battery pack protection device provided by the present utility model, four heat dissipation holes are symmetrically opened in the case along the length direction of the battery. By opening the heat dissipation port, the heat dissipation performance of the device can be improved and the life of the battery can be extended.

In order to describe the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly describes the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. , The accompanying drawings in the following description are part of the embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on them without creative activities. Will.

1 is a schematic diagram of the battery pack protection device of the present utility model; FIG. FIG. 3 is a cross-sectional view of the battery pack protection device omitting the vibration damping mechanism of the present utility model; FIG. 2 is a cross-sectional plan view of the battery pack protection device omitting the vibration damping mechanism of the present utility model;

The following clearly and completely describes the technical solutions of the present invention in conjunction with the drawings, but it is obvious that the above embodiments are only a part of the embodiments of the present invention, but not all of them. For those skilled in the art, other embodiments obtained without creative activities based on the embodiments of the present invention shall all fall within the protection scope of the present invention.

In the description of the present invention, orientations and positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on what is shown in the drawings and are merely intended to facilitate or simplify the description of the invention, as the devices and elements referred to have particular orientations and are configured in particular orientations. or should not be construed as limiting the invention. Further, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the invention, unless expressly specified or restricted, the terms "attached", "connected", "connected" may be, for example, a fixed connection, a detachable connection, or an integral connection. It may be a physical connection, a mechanical connection, or an electrical connection, and it may be directly connected or indirectly connected through an intermediate. Note that it is broadly understood to mean that it may be either internal to the two elements or contiguous. A person skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.

It should be noted that the technical features according to different embodiments of the present invention described below can be combined with each other as long as they do not contradict each other.

As shown in FIG. 1, as a preferred embodiment of the battery pack protection device of the present utility model, such a battery pack protection device can protect a battery pack. By individually restricting and fixing the position of each battery, it is possible to prevent the battery pack from being damaged or ignited due to the collision of adjacent batteries. At the same time, effective vibration damping can prevent the vibration from being transmitted to the battery pack and damaging the battery pack.

The battery pack protection device described above includes a case 1 , a stopper mechanism, and a vibration damping mechanism 3 . Here, the case 1 has a rectangular parallelepiped box shape and accommodates a battery pack therein. In this example, the battery pack comprises a total of 10 batteries arranged in 2 rows and 5 columns. The inner wall of the top plate of the case 1 is provided with a first buffer layer 4 made of a pressed aluminum plate, a glass fiber composite material, or a carbon fiber composite material. The inner wall of the bottom plate of case 1 is provided with a second damping layer 5 made of pressed steel, extruded aluminum profile, aluminum plate or aluminum casting. The inner wall of the side plate of the case 1 is provided with a third buffer layer, which is made of materials such as industrial rubber mat, heat insulating cotton or PE foam, and has high temperature resistance and buffer function. Specifically, in the present embodiment, the first buffer layer 4 is made of a carbon fiber composite material that is lightweight and the top plate is easy to attach and detach, and the second buffer layer 5 is a press that has high rigidity and high load capacity. It is made of steel plate and the third buffer layer is made of PE foam.

A side wall of the case 1 is provided with an exhaust nozzle made of a high-temperature material such as steel or ceramics. The exhaust nozzle is provided with a seal member 7 and at the site of the exhaust nozzle is a pressure equalization valve having a burst pressure of 0.5 to 1.0 pounds per square inch. Specifically, in this embodiment, the exhaust nozzle is made of ceramics, the seal member 7 is preferably a seal nut, and the burst pressure of the pressure balancing valve is 0.5 pounds per square inch. By providing an exhaust nozzle, after thermal runaway of the battery pack in the case 1, it is possible to guide the air flow and material flow away from the staff and reduce the danger. The seal nut seals the exhaust nozzle in the normal operation of the battery pack, and when thermal runaway occurs, it is melted by heat or deformed by extrusion due to the increase in temperature and pressure, and falls out of the exhaust nozzle. open the

Furthermore, the four heat radiation holes 8 are opened in the side walls of the case 1, and two side walls of the case 1 are symmetrically installed along the length direction of the battery. In this embodiment, the two heat radiating holes 8 and the exhaust nozzle are provided on the same side wall of the case 1 and arranged on both sides of the exhaust nozzle. The heat radiation port 8 is composed of a plurality of exhaust holes of the same size. By providing the heat radiation port 8, the heat radiation area of the device can be increased and the heat radiation performance can be improved.

The stopper mechanism is provided in the case 1 and includes a plurality of spaced apart stopper components, each stopper component being provided with one battery of the battery pack. In this embodiment, since the battery pack has ten batteries, the stopper mechanism has ten stopper components, and the arrangement of the stopper components is the same as the arrangement of the batteries. The ten stopper components are arranged in case 1 in two rows, five in each row.

As shown in FIG. 2, the stopper components include a stopper cover 201 fixedly connected to the case 1 and provided with a housing cavity in which a battery can be placed, and a stopper top detachably connected to the uppermost end of the stopper cover 201 . plate 202; Specifically, as shown in FIG. 3, the stopper cover 201 consists of two stopper end plates 2011 that are parallel and spaced apart along the length of the battery, and two stopper end plates 2011 that are parallel along the width of the battery. and two stopper side plates 2012 installed at intervals, both ends of the stopper side plates 2012 are respectively connected to one ends of the two stopper end plates 2011, and the two stopper end plates 2011 are connected to the two stopper side plates 2012 , and both ends of the stopper top plate 202 are detachably connected to the upper surfaces of the two stopper end plates 2011 with bolts. The bottom surfaces of the two stopper end plates 2011 are fixedly connected to the second buffer layer 5 by bolts, and the stopper end plates 2011 are opened with cavities to accommodate the bolts. The battery is fixedly connected to the stopper end plate 2011 by bolts when placed in the receiving cavity.

A reinforcing rib 6 whose length direction is perpendicular to the length direction of the battery is provided between the bottom plate of the case 1 and the stopper mechanism. Specifically, in this embodiment, there are a total of four reinforcing ribs 6, and two reinforcing ribs 6 are provided at the lower end of each row of batteries. I am letting

The vibration damping mechanism 3 has a plurality of vibration damping mounts 301 provided at the lower end of the case 1 . The vibration damping mount 301 buffers and damps the vibration of the case 1 to reduce the vibration of the battery pack inside the case 1 . The vibration damping mechanism 3 further includes a pedestal 302 to which the case 1 is fixed. Specifically, in the present embodiment, the pedestal 302 has a flat plate-like case 1 fixed thereto, and the vibration damping mounts 301 are symmetrically installed in total four at the lower end of the pedestal 302, two at a time. ing. The vibration damping mount 301 is internally provided with a spring, and the vibration of the spring can provide a vibration damping effect.

The operation principle of the battery pack protection device provided by this embodiment will be described below.

First, the top plate of the case 1 is opened, the stopper components are arranged in the case 1 in 2 rows and 5 columns, connected to the second buffer layer 5 of the bottom plate of the case 1, and then the 10 batteries of the battery pack are placed in 10 The stopper component is put into the receiving cavity correspondingly, fixedly connected to the stopper end plate 2011 by bolts, and then the stopper top plate 202 is fixedly connected to the stopper end plate 2011 to complete the fixing of the battery pack. When the top plate of the case 1 is covered, the case 1 is placed on the pedestal 302. - 特許庁

During the use of the battery pack, the stopper component prevents displacement and collision of the battery, and the first buffer layer 4 and the second buffer layer 5 buffer the top or bottom of the battery pack, and furthermore, the case Vibration damping mounts 301 at the bottom of 1 can provide damping and vibration damping. Prevents battery pack damage, fire and thermal runaway due to collisions and vibrations.

In addition, during normal use, the battery pack functions as a seal by connecting the seal nut to the exhaust nozzle, and if thermal runaway occurs, the seal nut falls off from the exhaust nozzle and the airflow is guided from the exhaust nozzle. Prevents damage to surrounding staff due to dissipation.

In other embodiments, the first buffer layer 4 may be made of pressed aluminum plate or fiberglass composite and the second buffer layer 5 may be made of extruded aluminum profile or aluminum plate or aluminum casting. , the third buffer layer may be made of industrial rubber mat, insulating cotton.

In other examples, the exhaust nozzle may be made of other high temperature resistant materials such as steel, and the burst pressure of the pressure balancing valve may be 0.8 lbs/in 2 , 1.0 lbs/in 2 , etc. may

In other embodiments, the stopper components in the stopper mechanism may be selected according to the number of batteries in the battery pack, such as 6, 8, 12 in number, and their arrangement matches the arrangement of the batteries.

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

In other embodiments, the number of vibration damping mounts 301 may be adjusted according to the area of the pedestal 302 and the area of the case 1, such as six or eight.

It is clear that the above examples are merely examples for the purpose of clarifying rather than limiting the embodiments. A person skilled in the art can make various modifications or changes based on the above description. It is neither necessary nor possible to cover all embodiments here. Obvious variations or modifications introduced therefrom are still covered by the protection scope of the invention.

1, case 201, stopper cover 2011, stopper end plate 2012, stopper side plate 202, stopper top plate 3, vibration damping mechanism 301, vibration damping mount 302, pedestal 4, first buffer layer 5, second buffer layer 6, Reinforcement rib 7, seal member 8, heat radiation port

Claims (10)

a case (1) for placing the battery pack;
a stopper mechanism installed in the case (1) and comprising a plurality of spaced apart stopper components, each stopper component being provided with one battery of the battery pack;
A battery pack protection device, comprising a vibration damping mechanism (3) comprising a plurality of vibration damping mounts (301) provided at the lower end of the case (1). The stopper component is fixedly connected to the case (1) and detachably connected to a stopper cover (201) having an accommodation cavity in which the battery can be placed, and a top end of the stopper cover (201). The battery pack protection device of claim 1, comprising a stopper top plate (202). The stopper cover (201) includes two stopper end plates (2011) parallel and spaced apart along the length direction of the battery and parallel and spaced apart along the width direction of the battery. two stopper side plates (2012) installed, both ends of the stopper side plates (2012) are respectively connected to one ends of the two stopper end plates (2011), and the two stopper end plates (2011) are , the two stopper side plates (2012) are surrounded to form the accommodation cavity, and both ends of the stopper top plate (202) are respectively detachably connected to the upper surfaces of the two stopper end plates (2011). The battery pack protection device according to claim 2, characterized by: The inner wall of the top plate of the case (1) is provided with a first buffer layer (4) made of a pressed aluminum plate, a glass fiber composite material, or a carbon fiber composite material. The battery pack protection device according to claim 1, characterized in that the inner wall is provided with a second buffer layer (5) made of pressed steel plate, extruded aluminum profile, aluminum plate or aluminum casting. The battery pack according to claim 4, characterized in that a reinforcing rib (6) whose length direction is perpendicular to the length direction of the battery is provided between the bottom plate of the case (1) and the stopper mechanism. protector. The battery pack protection device according to claim 1, characterized in that said stopper mechanism comprises ten said stopper components arranged in two rows in said case (1), with five installed in each row. The battery pack protection device according to claim 1, wherein the side wall of the case (1) is provided with an exhaust nozzle having a sealing member (7) installed thereon. 8. The battery pack protection device of claim 7, wherein the exhaust nozzle is provided with a pressure balancing valve having a burst pressure of 0.5-1.0 pounds per square inch. Four heat dissipation holes (8) are opened in the side wall of the case (1), and two side walls of the case (1) are symmetrically installed along the length direction of the battery. The battery pack protection device according to claim 7, characterized in that: The vibration damping mechanism (3) further includes a pedestal (302) to which the case (1) is fixed, and the vibration damping mounts (301) are four in total, two at the lower end of the pedestal (302). The battery pack protection device according to any one of claims 1 to 9, characterized in that it is installed symmetrically at .

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