CN219203350U

CN219203350U - Protective structure, battery and power utilization device

Info

Publication number: CN219203350U
Application number: CN202221232218.6U
Authority: CN
Inventors: 潘鑫; 苗慧敏; 陈智明
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-05-21
Filing date: 2022-05-21
Publication date: 2023-06-16
Anticipated expiration: 2032-05-21

Abstract

The embodiment of the application provides a protection structure, a battery and an electric device. The protective structure may include a first guard, a second guard opposite the first guard, and a support device disposed between the first guard and the second guard. The supporting device can play a role in buffering and protecting between the first guard plate and the second guard plate.

Description

Protective structure, battery and power utilization device

Technical Field

The application relates to the technical field of batteries, in particular to a protection structure, a battery and an electric device.

Background

Energy conservation and emission reduction are key to sustainable development, and electric energy is an important component of sustainable development due to the advantages of energy conservation and environmental protection. Batteries are a critical component of great importance to various industries. Providing a safe, efficient, performance stable, and easy-to-use battery is always a goal pursued by various industries.

Disclosure of Invention

In view of the foregoing, the present application provides a protection structure for a battery, a battery having the protection structure, and an electric device (e.g., an electric vehicle or the like) including the battery having the protection structure, capable of providing protection to the battery during use. The protection structure of the application is light in weight, small in occupied space, high in grouping rate, wide in adaptation, or convenient to maintain and repair, and will be described below with reference to specific embodiments.

In a first aspect, the present application provides a protective structure, which may include: the device comprises a first guard plate, a second guard plate opposite to the first guard plate and a supporting device arranged between the first guard plate and the second guard plate.

In the technical scheme of the embodiment of the application, the protection structure can be arranged around the battery to play a role in buffering and protecting so as to protect the battery from damage caused by external impact and the like in the using process.

In some embodiments, the first guard plate may be a water cooled bottom and the second guard plate may be a bottom guard plate. The supporting device is arranged between the water-cooled bottom and the bottom guard plate, that is, the protective structure is arranged at the bottom of the battery to play a role in buffering and protecting, so that the bottom of the battery is protected from damage caused by external impact in the use process, and the like.

In some embodiments, the support means may be an air column bag structure. In one aspect, due to the compressibility of the gas, the air column pocket structure disposed between the first and second shields may be compressed to act as a cushion upon impact. On the other hand, the air column bag structure can also play a role in heat preservation and heat insulation because the heat conductivity coefficient of the air filled in the air column bag structure is low. In addition, the supporting device formed by the air column bag structure is light in weight, and power consumption can be saved in the running process of the vehicle. When the air column bag structure is arranged between the water cooling plate and the bottom guard plate, the bottom guard plate can be detached for inspection and maintenance. If the air column bag structure is damaged, the air column bag structure can be replaced by detaching the bottom guard plate, and the air column bag structure is quite convenient.

In some embodiments, the airbag structure may be inflated such that the airbag structure supports, or does not fully support, one or both of the first and second panels. Because the gas deformation is free, the gas column bag structure can be freely deformed along with inflation, so that the gas column bag structure can be selected according to actual needs to cope with various use scenes.

In some embodiments, the air column bag structure may include a sealing plate for sealing the air column bag structure, and an inflation and deflation assembly is provided on the sealing plate. Through set up the closing plate on the air column bag structure and set up on the closing plate simultaneously and fill gassing subassembly, can adjust the gaseous density of air column bag structure as required, with the space adjustment self shape in order to adapt to the space that makes air column bag structure be located, the user of being convenient for, manufacturer and/or maintenance personnel adjust the state of aerifing of air column bag structure at any time according to actual need, perhaps according to the space size between first backplate and the second backplate, with various actual need of adaptation, realize space make full use of simultaneously, greatly increased design and use degree of freedom, also for the manufacturing of protective structure, the assembly is convenient, the while has still improved the grouping rate.

In some embodiments, the inflation and deflation assembly may be a valve. In the inflation process, through using the inflating valve, can the automatic closing inflating valve seal up gas when the inflating device leaves the inflating valve to prevent gas escape gas column bag structure, be convenient for user, manufacturer and/or maintenance personal adjust the state of gas column bag structure, promote and use experience.

In some embodiments, the air column pocket structure may be made of a wear resistant material. Air column pouch structures made of wear resistant materials (e.g., puncture resistant materials) have significantly improved service lives.

In some embodiments, the column bag structure may be filled with a non-flammable gas or a non-combustion gas. The non-combustible gas or non-combustion-supporting gas is filled in the gas column bag structure, so that the fire can be prevented from deteriorating or the fire of the battery can be restrained under the condition that the fire of the battery is generated, the safety of the battery is ensured, and the safety of a user (for example, a car owner of an electric car) of the electric device is further improved.

In some embodiments, the gas column bag structure may include one or more gas column bags, which are tubular gas column bags filled with gas. The air column bag structure may be configured to include one or more air column bags as desired to provide a uniform cushioning effect during compression.

In some embodiments, the air column pocket structure may include one or more layers of air column pockets disposed between the first and second shields. One or more air column bags may include any combination of one or more of the following: one or more air column bags uniformly distributed; one or more air column bags distributed at equal intervals; one or more air column pockets disposed at edges of the first and second guard plates; or one or more air column bags distributed irregularly. The design of the air column bag structure can be arbitrarily adapted according to actual needs or according to the space between the first guard plate and the second guard plate so as to meet various use requirements or adapt to various electric devices.

In some embodiments, the air column bag structure is fixedly connected to the first guard plate and/or the second guard plate. By fixedly connecting the air column bag structure with the first and/or second guard plates, the air column bag structure can be kept at a desired position between the first and/or second guard plates all the time, or the influence of relative movement between the three can be prevented, for example, film abrasion or the like caused by the relative movement between the three can be prevented.

In some embodiments, the means of securing includes gluing or bolting. Through the adhesive fixation or the bolted connection fixed with first backplate and/or second backplate with the gas column bag structure, can make the relative movement between the three that prevents, also easily install or dismantle the gas column bag structure simultaneously, can change the gas column bag structure easily. When the air column bag structure is arranged between the water cooling plate and the bottom guard plate, if the air column bag structure is damaged and needs to be replaced, the air column bag structure can be torn off by detaching the bottom guard plate, or the air column bag structure can be detached by detaching the bolts, so that the air column bag structure is quite convenient.

In some embodiments, the protective structure may further include a buffer layer disposed between the support device and the first guard, and/or between the support device and the second guard. By providing a buffer layer between the support device and the first guard plate and/or between the support device and the second guard plate, the support device can be prevented from friction caused by relative movement between the support device and the first guard plate, and the service life of the support device is prolonged.

In a second aspect, the present application provides a battery that may include the guard structure of the above embodiments.

In a third aspect, the present application provides an electrical device that may include the battery of the above embodiments.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the alternative embodiments. The drawings are only for purposes of illustrating alternative embodiments and are not to be construed as limiting the application. Like reference numerals are used to denote like parts throughout the figures.

FIG. 1 is a schematic illustration of a vehicle disclosed in an embodiment of the present application;

fig. 2 is a schematic view showing an exploded structure of a battery disclosed in an embodiment of the present application;

FIG. 3 is a schematic structural view of a protective structure according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of an inflation and deflation assembly disclosed in an embodiment of the present application; and

fig. 5a-5d are schematic structural views of air column bag structures disclosed in an embodiment of the present application.

In the drawings, the drawings are not drawn to scale.

Marking:

a vehicle 1;

a battery 11, a controller 12, a motor 13;

a housing 111, a first portion 1111, a second portion 1112;

a battery cell 112;

a protective structure 2;

a first guard 21, a support device 22, a second guard 23;

a sealing plate 221, an inflation/deflation assembly 222;

a guide bar 2221, an elastic block 2222, and an air seal block 2223.

Detailed Description

Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the present application and are not intended to limit the scope of the application, i.e., the application is not limited to the embodiments described.

In the description of the embodiments of the present application, it should be noted that, unless otherwise indicated, the term "plurality" means two or more; the term "and/or" is merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, which may represent: a exists alone, a and B exist together, and B exists alone; the character "/" herein generally indicates that the associated object is an "or" relationship. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover a non-exclusive inclusion.

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are orientation or positional relationship based on the drawings, which are merely for convenience of describing the embodiments of the present application and simplifying the description, and are not intended to indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the following description, numerous specific details are set forth, such as examples of specific components, circuits, and processes, in order to provide a thorough understanding of the present disclosure. As used herein, the terms "coupled," "connected," or "connected" mean directly connected to, or connected by, one or more intervening media or components. The specific meaning of the terms in the present application can be understood as appropriate by one of ordinary skill in the art. Moreover, in the following description and for purposes of explanation, specific nomenclature is set forth to provide a thorough understanding of the embodiments of the present disclosure. It will be apparent, however, to one skilled in the art that the example embodiments may be practiced without these specific details. In other instances, well-known circuits and devices are shown in block diagram form in order not to obscure the present disclosure. Energy conservation and emission reduction are key to sustainable development, and electric energy is an important component of sustainable development due to the advantages of energy conservation and environmental protection. Batteries are a critical component of great importance to various industries. Providing a safe, efficient, performance stable, and easy-to-use battery is always a goal pursued by various industries.

Batteries, particularly power batteries, may be damaged during use due to external damage (e.g., bad road conditions, external impacts), etc. In particular, the bottom of the battery is particularly easily brought into contact with the outside, and thus is more easily damaged. Therefore, protection of the battery (especially the bottom of the battery) is particularly important.

Currently, some guard structures for batteries are implemented by two parallel plates sandwiching an arcuate plate. The arcuate plate structure is inherently rigid, the containment structure formed from the rigid structural plates occupies a relatively large space and is relatively inefficient in grouping during manufacturing. Moreover, the protective structure formed by the rigid structural plates is fixed in size, and the application scene is limited. In addition, when the arc plate is damaged, the bottom guard plate needs to be replaced integrally. If CTP battery pack, it is still probably to need the whole battery pack of changing, and maintenance, maintenance degree of difficulty are great.

In addition, some structural bodies of the protective structure for the battery adopt a plate structure, and are heavy in weight and low in energy efficiency. Similarly, the protection structure also has the problems of large occupied space, limited application scene, difficult maintenance and the like.

In view of the above, the present application provides a protective structure. The guard structure may include: the device comprises a first guard plate, a second guard plate opposite to the first guard plate and a supporting device arranged between the first guard plate and the second guard plate. The protection structure can be arranged around the battery to play a role in buffering and protecting, so as to protect the battery from external impact and the like in the use process.

In some embodiments, the first guard plate may be a water cooled bottom and the second guard plate may be a bottom guard plate. The supporting device is arranged between the water-cooled bottom and the bottom guard plate, that is, the protective structure is arranged at the bottom of the battery to play a role in buffering and protecting, so that the bottom of the battery is protected from external impact and the like in the use process.

The protection structure can be used for protecting various batteries. The battery disclosed by the embodiment of the application can be used in vehicles (such as vehicles, ships, aircrafts and the like), special equipment and other electric devices, but is not limited to. The protection structure disclosed by the application can play a role in buffering when the battery is impacted by the outside, provides effective protection, and protects the battery from the influence of the outside impact. Moreover, the protection structure has the advantages of light weight, small occupied space, high grouping rate, wide adaptation and convenient maintenance. When the protective structure is applied to the battery on the movable electric device, the power consumption of the electric vehicle caused in the moving process due to the carrying of the protective structure is remarkably reduced due to the advantages of light weight, small occupied space and the like. Moreover, the protective structure comprising the air column bag structure has the advantages of heat preservation and heat insulation. In addition, when the protective structure is provided at the bottom of the battery on the electric device, maintenance and repair can be easily performed on the protective structure (for example, the air column bag structure in the protective structure).

The embodiment of the application provides an electricity utilization device using a battery as a power supply, wherein the electricity utilization device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like. Those skilled in the art will appreciate that the application scenario of the protective structure of the present application may also be applied to any other device with an electrical load.

For convenience of description, the following embodiment will take an electric device according to an embodiment of the present application as an example of the vehicle 1.

Fig. 1 shows a schematic configuration of a vehicle 1 disclosed in an embodiment of the present application. The vehicle 1 can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extending vehicle. The interior of the vehicle 1 is provided with a battery 11, and the battery 11 may be provided at the bottom or at the head or at the tail of the vehicle 1. The battery 11 may be used for power supply of the vehicle 1, for example, the battery 11 may be used as an operating power source of the vehicle 1. The vehicle 1 may further comprise a controller 12 and a motor 13, the controller 12 being adapted to control the battery 11 to supply power to the motor 13, e.g. for operating power requirements during start-up, navigation and driving of the vehicle 1.

In some embodiments of the present application, the battery 11 may not only serve as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, providing driving power for the vehicle 1 instead of or in part instead of fuel oil or natural gas.

Fig. 2 shows an exploded view of a battery 11 disclosed in some embodiments of the present application. The battery 11 includes a case 111 and a battery cell 112, and the battery cell 112 is accommodated in the case 111. The case 111 is used to provide an accommodating space for the battery cell 112, and the case 111 may have various structures. In some embodiments, the case 111 may include a first portion 1111 and a second portion 1112, the first portion 1111 and the second portion 1112 overlapping each other, the first portion 1111 and the second portion 1112 together defining an accommodating space for accommodating the battery cell 112. The second portion 1112 may be a hollow structure with an opening at one end, the first portion 1111 may be a plate-shaped structure, and the first portion 1111 covers the opening side of the second portion 1112, so that the first portion 1111 and the second portion 1112 together define a receiving space; the first portion 1111 and the second portion 1112 may also be hollow structures each having an opening at one side, and the opening side of the first portion 1111 is engaged with the opening side of the second portion 1112. Of course, the case 111 formed by the first portion 1111 and the second portion 1112 may be of various shapes, such as a cylinder, a rectangular parallelepiped, or the like.

In the battery 11, the plurality of battery cells 112 may be plural, and the plurality of battery cells 112 may be connected in series, parallel, or a series-parallel connection, where a series-parallel connection refers to that the plurality of battery cells 112 are connected in both series and parallel. The plurality of battery cells 112 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 112 is accommodated in the box 111; of course, the battery 11 may be a battery module formed by connecting a plurality of battery cells 112 in series or parallel or series-parallel connection, and a plurality of battery modules are then connected in series or parallel or series-parallel connection to form a whole and are accommodated in the case 111. The battery 11 may also include other structures, for example, the battery 11 may also include a bus member for making electrical connection between the plurality of battery cells 112.

Wherein each battery cell 112 may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cells 112 may be cylindrical, flat, rectangular, or otherwise shaped.

According to some embodiments of the present application, a protective structure 2 is provided.

Fig. 3 shows a schematic structural view of the protective structure 2 disclosed in an embodiment of the present application. As shown in fig. 3, the protective structure 2 may include a first protective plate 21, a second protective plate 23 opposite the first protective plate 21, and a support device 22 disposed between the first protective plate 21 and the second protective plate 23.

In an example case, the first guard 21 and the second guard 23 are relatively fixed with a fixed gap therebetween. The protective structure 2 may be provided around a battery (not shown) to function as a buffer, a guard, to protect the battery from external impact, etc. during use. When the battery is subjected to external impact, the protection structure 2 first resists the external impact, and the influence of the external impact on the battery is buffered, thereby protecting the battery.

Alternatively, the first guard plate 21 may be a water-cooled bottom and the second guard plate 23 may be a bottom guard plate, according to some embodiments of the present disclosure.

Typically, the bottom guard plate is located at the bottom of the electric vehicle and the water cooled plate is located below the power cells of the electric vehicle. In general, the bottom of the power cell is more likely to suffer external impact (e.g., a dimpled road surface, an obstacle on a road surface, etc.). The water cooling plate and the bottom guard plate are provided with the supporting device 22, so that external impact can be buffered, the bottom of the power battery is protected, the power source of the electric vehicle is prevented from being damaged by the external impact, the reliability and the safety of the electric vehicle are improved, and the user experience is improved.

Alternatively, according to some embodiments of the present disclosure, the support device 22 may be an air column bag structure, as shown in fig. 3. The air column bag structure is filled with air. Alternatively, the support means 22 may be a fluid bag, sponge or other cushioning structure.

In the first aspect, since the gas has much better compressibility than the solid and liquid, the air column bag structure provided between the first and

second shields

21 and 23 can be compressed to function as a cushion when being impacted. In the second aspect, the air column bag structure can also play a role in heat preservation and heat insulation because the air generally has lower heat conductivity coefficient. In the third aspect, the supporting means 22 formed of the air column bag structure is much lighter in mass than the rigid structural plate, so that the power consumption of the electric vehicle during running due to carrying of the guard structure 2 can be significantly reduced. In the fourth aspect, when the air column bag structure is arranged between the water cooling plate and the bottom guard plate, the bottom guard plate can be detached for inspection and maintenance. If the air column bag structure is damaged, the air column bag structure can be replaced by detaching the bottom guard plate, and the air column bag structure is quite convenient. When the air column bag structure is replaced, if air is reserved in the air column bag structure, the air column bag structure can be punctured, and residual air is extruded, so that the uninflated air column bag structure can be taken out conveniently.

Alternatively, the airbag structure may be inflated such that the airbag structure supports one or both of the first and

second shields

21, 23, or does not fully support one or both of the first and

second shields

21, 23, according to some embodiments of the present disclosure.

Because the gas deformation is free, the gas column bag structure can be freely deformed along with inflation, so that the gas column bag structure can be selected according to actual needs to cope with various use scenes.

Optionally, according to some embodiments of the present disclosure, the air column bag structure may include a sealing plate 221 for sealing the air column bag structure, and an air charging and discharging assembly 222 is provided on the sealing plate 221.

Through setting up closing plate 221 on the gas column bag structure and setting up on closing plate 221 simultaneously and fill gassing subassembly 222, can adjust the density of the gas in the gas column bag structure as required, so that gas column bag structure adjusts self shape in order to adapt to the space between first backplate 21 and the second backplate 23, the user of being convenient for, manufacturer and/or maintenance personal adjust the state of aerifing (for example, support or incomplete support) of gas column bag structure at any time according to actual need, or according to the space size between first backplate 21 and the second backplate 23, in order to adapt to various actual need, realize space make full use of simultaneously, greatly increased design and use degree of freedom, also for the manufacturing of protective structure 2, the assembly is convenient, the while has still improved the grouping rate.

Optionally, in accordance with some embodiments of the present disclosure, the inflation and deflation assembly 222 may be a valve.

Fig. 2 shows a schematic structural view of the valve. It is noted that fig. 2 is provided by way of example only and not by way of limitation. The valve 222 may include a guide bar 2221, an elastic block 2222, and an air seal block 2223. Using the external force deriving rod 2221, inflation and deflation can be performed by compressing the elastic block 2222 and opening the air seal block 2223. If pressurization is required, inflation is performed, and if depressurization is required, deflation is performed.

In the inflation process, through using the inflating valve, can the automatic closing inflating valve seal up gas when the inflating device leaves the inflating valve to prevent gas escape gas column bag structure, be convenient for user, manufacturer and/or maintenance personal adjust the state of gas column bag structure, promote and use experience.

Optionally, according to some embodiments of the present disclosure, the air column pocket structure may be made of a wear resistant material (e.g., a puncture resistant material).

The air column bag structure made of the wear-resistant material has a remarkably improved service life.

Optionally, the gas column bag structure may be filled with a non-flammable gas or a non-combustion gas according to some embodiments of the present disclosure.

The non-combustible gas or non-combustion-supporting gas is filled in the gas column bag structure, so that the fire can be prevented from deteriorating or the fire of the battery can be restrained under the condition that the fire of the battery is generated, the safety of the battery is ensured, and the safety of a user (for example, a car owner of an electric car) of the electric device is further improved.

Optionally, according to some embodiments of the present disclosure, the gas column bag structure may include one or more gas column bags, which are tubular gas column bags filled with a gas therein.

The air column bag structure may be configured to include one or more air column bags as desired to provide a uniform cushioning effect during compression. In an example case, the tubular gas column bag may include a cylindrical gas column bag, an oval gas column bag, an elongated gas column bag, or any other random tubular gas column bag, or the like.

Optionally, according to some embodiments of the present disclosure, the air column pocket structure may include one or more layers of air column pockets disposed between the first and

second shields

21, 23. One or more air column bags may include any combination of one or more of the following: one or more air column bags uniformly distributed; one or more air column bags distributed at equal intervals; one or more air column pockets provided at the edges of the first and

second shields

21, 23; or one or more air column bags distributed irregularly.

Fig. 5a-5d show schematic structural views of a layer of air column bags in an air column bag structure. It is noted that fig. 5a-5d are provided by way of example only and not by way of limitation. Referring to fig. 5a, a layer of air column pockets may comprise one or more tubular air column pockets distributed continuously and evenly. Referring to fig. 5b, a layer of air column pockets may include one or more air column pockets equally spaced apart. Referring to fig. 5c, a layer of air column pockets may include four air column pockets disposed at four edges of the shield. Referring to fig. 5d, a layer of air column pockets may include one or more air column pockets equally spaced parallel to the diagonal of the shield.

The design of the air column bag structure can be arbitrarily adapted according to actual needs or according to the space between the first guard plate 21 and the second guard plate 23 to meet various use requirements or adapt to various electric devices. In some example cases, the size of the air column bag is preferably large. For example, the air column bag structure may be constituted by one air column bag. In some example cases, the air column bag structure is preferably a plurality of air column bags, so that certain buffering and protecting effects can be still provided under the condition that one air column bag leaks air.

According to some embodiments of the present disclosure, the air column bag structure is optionally fixedly connected to the first guard 21 and/or the second guard 23.

The fixed connection of the air column bag structure to the first and/or

second shields

21, 23 can make the air column bag structure always remain at a desired position between the first and/or

second shields

21, 23, or can prevent the influence of relative movement between the three, for example, prevent relative movement between the three from causing film abrasion or the like.

According to some embodiments of the present disclosure, optionally, the means of securing comprises gluing or bolting.

By adhesively fixing or bolting the air column bag structure to the first guard plate 21 and/or the second guard plate 23, relative movement between the three can be prevented, and the air column bag structure can be easily attached or detached, and can be easily replaced. When the air column bag structure is arranged between the water cooling plate and the bottom guard plate, if the air column bag structure is damaged and needs to be replaced, the air column bag structure can be torn off by detaching the bottom guard plate, or the air column bag structure can be detached by detaching the bolts, so that the air column bag structure is quite convenient.

According to some embodiments of the present disclosure, the protective structure 2 may optionally further comprise a buffer layer disposed between the support device 22 and the first guard plate 21, and/or between the support device 22 and the second guard plate 23.

By providing a buffer layer between the support device 22 and the first guard plate 21 and/or between the support device 22 and the second guard plate 23, the support device 22 is prevented from friction caused by relative movement between the three, and the service life of the support device is improved.

According to some embodiments of the present application, there is provided a battery having a protective structure 2.

According to some embodiments of the present application, there is provided an electrical device (such as a vehicle) comprising a battery having a protective structure 2.

Alternative embodiments

According to some embodiments of the present disclosure, referring to fig. 3-4, a protective structure is provided. The protective structure may include a water-cooled panel, a bottom shield opposite the water-cooled panel, and a pocket structure disposed between the water-cooled panel and the bottom shield. The air column bag structure is filled with air.

In one example case, the water cooled panels and the bottom guard panels are about 1.5 to 3m in length, preferably 1.8 to 2.4m. The width of the water-cooled plate and the bottom guard plate is about 1.2 to 2.5m, preferably 1.3 to 2m.

In an example case, the water-cooled plate and the bottom guard plate are relatively fixed by bolts with a fixed gap. The fixing gap is about 0 to 100mm, preferably 0 to 60mm, more preferably 1 to 30mm, etc.

In an exemplary case, the filling space of the air column bag structure is about (1.5-3) X (1.2-2.5) X (0-0.1) m ³ Preferably (1.8 to 2.4) X (1.3 to 2) X (0 to 0.05) m ³ 。

In an example case, the air column bag structure may include one or more layers of air column bags. For example, the air column bag structure may comprise four layers of air column bags, wherein the first and fourth layers of air column bags of the air column bag structure adjacent to the water cooled plate and the bottom guard plate may be constructed as shown in FIG. 5 c. While the middle second and third air column pockets may be constructed as shown in figure 5 d. It is noted that the air column pouch structure set forth above is illustrated by way of example only, and each layer in the air column pouch structure may be selected and combined as desired.

The "ranges" disclosed herein are defined as lower and upper limits, with the given ranges being defined by selecting a lower and an upper limit, the selected lower and upper limits defining the boundaries of the particular ranges. Ranges that are defined in this way can be inclusive or exclusive of the endpoints, and any combination can be made, i.e., any lower limit can be combined with any upper limit to form a range. In this application, unless otherwise indicated, the numerical range "a-b" represents a shorthand representation of any combination of real numbers between a and b, where a and b are both real numbers.

In this application, all embodiments and preferred embodiments mentioned herein can be combined with each other to form new solutions, unless specifically stated otherwise.

In the present application, all technical features mentioned herein as well as preferred features may be combined with each other to form new solutions, if not specifically stated. While the application has been described with reference to alternative embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A protective structure, comprising:

a first guard plate;

a second guard plate opposite to the first guard plate; and

the support device is arranged between the first guard plate and the second guard plate, and is one of an air column bag structure, a liquid bag and a sponge.

2. The protective structure of claim 1 wherein said first guard is a water cooled bottom and said second guard is a bottom guard.

3. The protective structure according to claim 1 or 2, wherein the support means is an air column bag structure.

4. The protective structure of claim 3 wherein the air column bag structure is inflated such that the air column bag structure supports one or both of the first and second shields or does not fully support one or both of the first and second shields.

5. The protective structure of any one of claims 3 or 4, wherein the air column pouch structure comprises a sealing plate for sealing the air column pouch structure, the sealing plate having an inflation and deflation assembly disposed thereon.

6. The protective structure of claim 5 in which said inflation and deflation assembly is a valve.

7. The protective structure according to any one of claims 3 to 6, wherein the air column pocket structure is made of a wear resistant material.

8. The protective structure according to any one of claims 3 to 7, wherein the air column bag structure is filled with a non-combustible gas or a non-combustion gas.

9. The protective structure according to any one of claims 3 to 8, wherein the gas column bag structure includes one or more gas column bags, which are tubular gas column bags filled with a gas therein.

10. The protective structure according to any one of claims 3 to 9, wherein the air column pocket structure comprises one or more layers of air column pockets disposed between the first and second guard plates, the one or more layers of air column pockets including any combination of one or more of the following:

one or more air column bags uniformly distributed;

one or more air column bags distributed at equal intervals;

one or more air column pockets disposed at edges of the first and second guard plates; or (b)

One or more air column bags distributed irregularly.

11. The protective structure according to any one of claims 3 to 10, wherein the air column pocket structure is fixedly connected with the first guard plate and/or the second guard plate.

12. The protective structure of claim 11 wherein said means of securing includes adhesive or bolting.

13. The protective structure according to any one of claims 1 to 12, wherein the protective structure further comprises: and the buffer layer is arranged between the supporting device and the first guard plate and/or between the supporting device and the second guard plate.

14. A battery comprising the protective structure according to any one of claims 1 to 13.

15. An electrical device comprising a battery according to claim 14.