Protection assembly of battery pack, battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a protection assembly of a battery pack, the battery pack and electric equipment. The protection assembly of the battery pack comprises a protection shell and filler. The protective shell is mounted on a shell of the battery pack and is provided with an accommodating space; the filler is packaged in the containing space, and when the protective shell is damaged, the filler overflows out of the containing space. By applying the technical scheme provided by the invention, the problem that the damage condition of the battery pack in the related technology is difficult to perceive in time can be effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a protection assembly of a battery pack, the battery pack and an electric device. BACKGROUND

[0002] At present, the battery pack is often used to power the electric device. Taking a new energy vehicle as an example, the battery pack is the core power supply device of the new energy vehicle.

[0003] In the related art, the battery pack is generally installed at the bottom of the vehicle. When the bottom of the vehicle is impacted, the battery pack is prone to damage.

[0004] However, the driver is difficult to timely perceive the damaged condition of the battery pack, resulting in the risk of water entering the battery pack. UTILITY MODEL CONTENT

[0005] The present application provides a protection assembly of a battery pack, the battery pack and an electric device, to solve the problem that the damaged condition of the battery pack in the related art is difficult to perceive in time.

[0006] In one aspect, the present application provides a protection assembly of a battery pack, comprising:

[0007] A protective shell is installed on the shell of the battery pack, and the protective shell has a containing space.

[0008] A filler is encapsulated in the containing space, and when the protective shell is damaged, the filler overflows from the containing space.

[0009] In some embodiments of the present application, the filler includes a colored liquid or a powder.

[0010] In some embodiments of the present application, the filler has the same color or includes multiple colors.

[0011] In some embodiments of the present application, the filler is mixed with a fluorescent agent.

[0012] In some embodiments of the present application, the protective shell includes a protective plate, and the protective plate has a cavity therein, and the cavity forms the containing space.

[0013] In some embodiments of the present application, the protective plate includes a top plate, a bottom plate and two side plates arranged opposite to each other and arranged between the top plate and the bottom plate, and the top plate, the bottom plate and the side plates enclose the containing space.

[0014] In some embodiments of the present application, the protective plate further includes a reinforcing structure arranged in the containing space, and the reinforcing structure divides the containing space into multiple containing areas, and each containing area is provided with the filler.

[0015] In some embodiments of this application, the protective shell includes a bottom shell and a side shell. The side shell is disposed on the circumferential edge of the bottom shell and is used to connect with the outer shell of the battery pack. The bottom shell, the side shell, and the outer shell of the battery pack form an accommodating space.

[0016] In some embodiments of this application, the protective component further includes a packaging bag, in which the filler is packaged.

[0017] In some embodiments of this application, the protective component further includes a seal disposed between the protective housing and the outer shell of the battery pack to seal the gap between the protective housing and the outer shell of the battery pack.

[0018] On the other hand, this application provides a battery pack, including: a battery pack body and a protective component. The battery pack body includes a housing and a battery module disposed within the housing. The protective component is connected to the housing and is the aforementioned protective component.

[0019] In some embodiments of this application, the protective shell of the protective component is detachably connected to the outer shell.

[0020] On the other hand, this application provides an electrical device, including: a chassis and a battery pack, the battery pack being mounted on the chassis, the battery pack being the aforementioned battery pack, and the protective components of the battery pack being located at the bottom of the electrical device and in contact with the external environment.

[0021] The protective components for the battery pack, the battery pack itself, and the electrical equipment provided in this application include a protective shell and a filler. The protective shell is installed on the outer shell of the battery pack, providing a certain degree of protection. The protective shell has a containment space, within which the filler is encapsulated. When the protective shell is damaged, the filler can overflow from the containment space, meaning it can spill out onto the outside of the electrical equipment. Users can see the spilled filler and know that the battery pack may have been impacted, thus reminding them to check the battery pack's condition promptly. Once potential damage is detected, the battery pack can be repaired in a timely manner, improving driving safety.

[0022] In addition, the protective shell has a certain structural strength and can also reinforce the outer shell of the battery pack. When subjected to minor scratches and impacts, the protective shell can protect the battery pack. In the event of severe scratches and impacts, the protective shell may rupture, causing the filler to spill out and scatter at the accident scene. When the user gets out of the vehicle to check, they will immediately know that the battery pack has been impacted, reminding them to promptly check the battery pack's safety condition. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 A structural schematic diagram of a protection assembly provided by an embodiment of the present application is shown in FIG. 1.

[0025] Figure 2 A structural schematic diagram of a protection assembly provided by another embodiment of the present application is shown in FIG. 2.

[0026] Figure 3 A structural schematic diagram of a battery pack provided by an embodiment of the present application is shown in FIG. 3.

[0027] Figure 4 A structural schematic diagram of a battery pack provided by another embodiment of the present application is shown in FIG. 4.

[0028] Explanation of Reference Signs:

[0029] 10, protection assembly;

[0030] 20, battery pack;

[0031] 100, protection shell; 101, containing space;

[0032] 111, top plate; 112, bottom plate; 113, side plate; 114, reinforcing structure;

[0033] 121, bottom shell; 122, side shell; 1221, vertical plate; 1222, mounting plate;

[0034] 200, filler;

[0035] 300, packaging bag;

[0036] 400, outer shell. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0038] As described in the background, the battery pack is the core power device of the vehicle, and the battery pack is usually arranged at the bottom of the vehicle. Such design not only saves space, but also lowers the center of gravity of the vehicle, thereby improving the stability and safety of driving. However, this layout also brings potential risks. Since the battery pack is located at the bottom of the vehicle, once it encounters the impact of road obstacles or is impacted in a traffic accident, the battery pack is prone to damage. If not discovered in time, the damage has a tendency to expand, causing inconvenience to maintenance and driving.

[0039] In order to improve the reliability of vehicle driving, in the related art, the state of the battery pack is monitored in real time through a sensor, and once an abnormality is detected, an alarm is immediately given to the driver, but this way has high cost and high probability of false positives.

[0040] Therefore, the application provides a protection assembly of a battery pack, a battery pack and a power consumption device. The protection assembly of the battery pack is arranged at a shell of the battery pack. A filler is arranged in the protection assembly. When the protection assembly is damaged and broken, the filler will overflow to remind a user that the battery pack is damaged. In addition, since the protection assembly is not the body of the battery pack, the stability of the battery pack is not affected even if the protection assembly is hit and damaged.

[0041] The protection assembly of the battery pack provided by the embodiments of the application will be described below with reference to the accompanying drawings.

[0042] Please refer to Figure 1 and Figure 3 The protection assembly of the battery pack provided by the embodiments of the application includes a protection shell 100 and a filler 200.

[0043] The protection shell 100 is mounted on the shell of the battery pack 20 and plays a protective role for the shell of the battery pack 20. The protection shell 100 has an accommodation space 101. The filler 200 is encapsulated in the accommodation space 101. When the protection shell 100 is damaged and broken, the filler 200 can overflow from the accommodation space 101, that is, the filler 200 can overflow to the outside of the power consumption device. The user can know that the battery pack may be hit by seeing the overflowing filler 200, thereby reminding the user to check the state of the battery pack 20 in time. Once it is found that the battery pack may be damaged, the battery pack 20 can be repaired in time, thereby improving the safety of driving.

[0044] In addition, the protection shell 100 also has a certain structural strength. The protection shell 100 itself can also play a certain reinforcing role for the shell of the battery pack. When the protection shell 100 is slightly scratched and hit, the protection shell can protect the battery pack. When the protection shell 100 is severely scratched and hit, the protection shell is broken, the filler overflows, and the filler is scattered at the accident site. The user can know that the battery pack is hit at the first time when checking, thereby reminding the user to check the safety condition of the battery pack in time.

[0045] In some embodiments of the application, the filler 200 can include a colored liquid or powder.

[0046] Specifically, the use of colored liquid or powder can provide obvious visual indication when the protection shell 100 is damaged. When the protection shell is damaged and the filler 200 overflows, the color change can quickly attract attention, so that the damage of the battery pack can be found and handled in time to prevent further damage or danger.

[0047] It should be noted that the colored liquid or colored powder can be made of chemically inert materials. Since the filler 200 is chemically inert, it will not react with the chemicals inside the battery pack, thereby avoiding the chemical reaction between the filler 200 and the battery modules inside the battery pack when the battery pack is severely damaged, which may cause a chemical hazard. This design improves the overall safety of the battery pack 20, especially in the case of damage to the protective shell 100.

[0048] In addition, the chemically inert filler 200 will not pollute or harm the environment when it spills out when the protective shell 100 is damaged. The material of the filler 200 can also be biodegradable, which helps to reduce the environmental risk of the battery pack during use and disposal.

[0049] It should also be noted that although the main function of the filler 200 is to provide leakage indication and safety, its physical properties (such as the flowability of the liquid or the filling of the powder) can still provide some cushioning and protection, further enhancing the impact and vibration resistance of the battery pack.

[0050] In some embodiments, the color of the filler can also be designed. The color design of the filler 200 can further enhance the function and application effect of the battery pack protection assembly.

[0051] For example, the colors of the fillers 200 can be the same. Using the same color of the filler 200 can simplify the production and filling process, reduce manufacturing costs and complexity. This design has an advantage in mass production. In addition, even if the colors of the fillers 200 are the same, the colored liquid or powder that spills out when the protective shell 100 is damaged can still provide a clear visual indication to help quickly find the problem.

[0052] For example, the filler 200 also includes multiple colors. Using multiple colors of the filler 200 can provide more detailed leakage indication. For example, fillers of different colors can be used for different areas or different types of battery packs, thereby providing more specific information when leaking to help quickly locate and identify the problem.

[0053] Specifically, using multiple colors of the filler in the design can divide the containment space 101 into different safety zones, each corresponding to different electronic components in the battery pack. For example, the first area corresponds to the battery modules in the battery pack, and the red filler is used for indication. The second area corresponds to the fixing structure outside the battery modules, and the yellow filler is used for indication. This helps users to more clearly identify the affected area when the protective shell is damaged, so as to take more targeted measures.

[0054] In some embodiments of the present application, a fluorescent agent can be mixed in the filler 200, which can significantly improve the visibility of the filler, so that even a small leakage can be quickly discovered, and timely measures can be taken to prevent further damage or danger.

[0055] In addition, the fluorescent agent can also improve the visibility of the filler 200 in dark light, which facilitates the user to discover the damage state of the protective shell in the night.

[0056] It should be further noted that the fluorescent agent is generally a chemically stable and safe substance, which will not react with the chemicals inside the battery pack, thereby maintaining the overall safety of the filler 200.

[0057] The specific structure of the protective shell 100 will be described below in conjunction with the accompanying drawings.

[0058] As shown in Figure 1 The protective shell 100 includes a protective plate having a cavity therein, and the cavity forms an accommodation space 101. The protective plate has a plate structure, which has the advantage of small occupied space. In addition, the protective plate itself has a cavity structure, which helps to ensure the sealing of the cavity to reduce the risk of overflow of the filler.

[0059] Further, the cavity can be formed in the process of processing the protective plate, for example, the protective plate can be made by welding aluminum profile plates. Alternatively, the protective plate can be made of non-metallic materials, which can be processed by injection molding, vacuum forming, etc.

[0060] Specifically, the protective plate can include a top plate 111, a bottom plate 112 and two side plates 113 arranged opposite to each other and arranged between the top plate 111 and the bottom plate 112, and the top plate 111, the bottom plate 112 and the side plates 113 surround the accommodation space 101. This arrangement can not only ensure the strength of the protective plate, but also ensure the volume of the accommodation space 101 to ensure the filling amount of the filler 200.

[0061] Exemplarily, the protective plate can be installed on the shell 400 of the battery pack by screws, rivets or the like.

[0062] In some embodiments, the protective plate further includes a reinforcing structure 114 arranged in the accommodation space 101, and the reinforcing structure 114 divides the accommodation space 101 into a plurality of accommodation areas, and each accommodation area is provided with a filler 200.

[0063] The reinforcing structure 114 divides the accommodation space 101 into a plurality of accommodation areas, which increases the overall rigidity and strength of the protective plate. This design can more effectively resist external impact and pressure, and prevent the protective plate from being deformed or damaged by slight touch.

[0064] In addition, the design of multiple containment zones allows for more precise location of leaks in the event of a breach in the protective panel. The filler 200 within each containment zone can overflow independently, providing more detailed leak indications and facilitating rapid problem identification and resolution.

[0065] The reinforced structure 114 divides the containment space into multiple independent areas, which can limit the leakage of the filler 200 and prevent all the filler 200 from overflowing outwards after the protective plate is damaged, effectively controlling the influence range of the filler.

[0066] like Figure 2 and Figure 4 As shown, the protective shell 100 can be of other structures besides the protective plate with a cavity.

[0067] Specifically, the protective shell 100 may include a bottom shell 121 and a side shell 122. The side shell 122 is disposed on the circumferential edge of the bottom shell 121 and is used to connect with the outer shell of the battery pack. The bottom shell 121, the side shell 122 and the outer shell of the battery pack form an accommodating space 101. This arrangement of the protective shell 100 utilizes the structure of the battery pack outer shell to form the accommodating space 101, which helps to save materials for the protective shell 100 and further reduce the cost of the protective components.

[0068] Furthermore, the side shell 122 may include a vertical plate 1221 and a mounting plate 1222 disposed at the edge of the vertical plate 1221. The mounting plate 1222 may be connected to the outer shell 400 of the battery pack by screws, rivets, etc.

[0069] Since the containment space 101 is enclosed by the protective shell 100 and the battery pack shell, in order to reduce the probability of the filler 200 spilling out between the protective shell 100 and the battery pack shell, the protective component may also include a packaging bag 300, in which the filler 200 is packaged, thereby reducing the risk of the filler 200 spilling out in a non-impact state.

[0070] When the protective shell 100 is impacted, the protective shell 100 and the packaging bag 300 rupture, causing the filler to spill out, thus alerting the user.

[0071] It should be noted that multiple packaging bags 300 can be set in the containing space 101, and each packaging bag 300 is filled with filler 200.

[0072] To reduce the probability of overflowing filler 200 from between the protective housing 100 and the battery pack housing, and to reduce the impact of the filler on the electrical components inside the battery pack, the protective assembly may further include a seal disposed between the protective housing 100 and the battery pack housing to seal the gap between the protective housing 100 and the battery pack housing.

[0073] In another aspect, as shown in Figure 2 and Figure 4 The battery pack 20 comprises a battery pack body and the protection assembly 10. The battery pack body comprises an outer shell 400 and a battery module arranged in the outer shell 400. The protection assembly 10 is connected to the outer shell, and the protection assembly is the protection assembly described above.

[0074] The battery pack with the protection assembly 10 has the advantages of the protection assembly 10, i.e., the protection assembly 10 can quickly indicate the impact state of the battery pack and improve the safety of the battery pack.

[0075] In some embodiments, the protection shell 100 of the protection assembly 10 is detachably connected to the outer shell, i.e., the protection assembly 10 can be a separate accessory of the battery pack. When the protection assembly 10 is damaged, the protection assembly 10 can be replaced, so that the impact state of the battery pack can be indicated when the battery pack is impacted again.

[0076] For example, the protection shell 100 can be connected to the outer shell 400 by screws, rivets, or the like, so as to facilitate maintenance and replacement of a new protection shell.

[0077] The battery pack 20 described in any of the embodiments described above is arranged on the chassis, and the protection assembly 10 of the battery pack is located at the bottom of the electric device and contacts the external environment, so that the protection assembly becomes a device that is preferentially impacted to the battery pack. While protecting the battery pack, the filler can overflow to prompt a user to check the state of the battery pack in time.

[0078] The electric device in the embodiments of the present application can be a vehicle, for example, the vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile. Correspondingly, the electric device can be a driving mechanism of the vehicle or a control system of the vehicle.

[0079] In addition, the electric device can also be other energy storage devices, such as a mobile phone, a portable device, a notebook computer, an electric toy, an electric tool, a ship, and a spacecraft. The spacecraft can include an airplane, a rocket, a space shuttle, or a spacecraft.

[0080] Since the electric device in the embodiments of the present application comprises the battery pack described in any of the embodiments described above, the electric device comprises the battery pack structure and the advantages, and the embodiments of the present application will not be described here.

[0081] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0082] In the description of the application, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0083] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

[0084] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device containing a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0085] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit it; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A guard assembly for a battery pack, the guard assembly comprising: The protective shell (100) is mounted on the shell of the battery pack, and has a containing space (101). The filler (200) is encapsulated in the containing space (101), and overflows from the containing space (101) when the protective shell (100) is broken. The filler (200) comprises a colored liquid or powder.

2. The guard assembly of claim 1, wherein, The filler (200) has the same color or comprises multiple colors.

3. The guard assembly of claim 2, wherein, The protective shell (100) comprises a protective plate having a cavity therein, and the cavity forms the containing space (101).

4. The guard assembly of any one of claims 1 to 3, wherein, The protective plate comprises a top plate (111), a bottom plate (112), and two side plates (113) arranged between the top plate (111) and the bottom plate (112), and the top plate (111), the bottom plate (112), and the side plates (113) enclose the containing space (101).

5. The guard assembly of claim 4, wherein, The protective plate further comprises a reinforcing structure (114) arranged in the containing space (101), and the reinforcing structure (114) divides the containing space (101) into multiple containing areas, and each containing area is provided with the filler (200).

6. The guard assembly of claim 5, wherein, The protective shell (100) comprises a bottom shell (121) and a side shell (122), the side shell (122) is arranged at the circumferential edge of the bottom shell (121), the side shell (122) is used for connecting with the shell of the battery pack, and the bottom shell (121), the side shell (122), and the shell of the battery pack enclose the containing space (101).

7. The guard assembly of any one of claims 1 to 3, wherein, The protective assembly further comprises an encapsulation bag (300), and the filler (200) is encapsulated in the encapsulation bag (300).

8. The guard assembly of claim 7, wherein, The protective assembly further comprises a sealing member arranged between the protective shell (100) and the shell of the battery pack, so as to seal the gap between the protective shell (100) and the shell of the battery pack.

9. The guard assembly of claim 7, wherein, The battery pack body comprises a shell and a battery module arranged in the shell.

10. A battery pack, characterized by, The protective assembly is connected to the shell, and the protective assembly is any one of the protective assemblies in claims 1 to 9. The protective shell (100) of the protective assembly is detachably connected with the shell. The bottom plate; 11. The battery pack of claim 10, wherein, The battery pack (20) is mounted on the bottom plate, and the battery pack (20) is the battery pack in claim 10 or 11, and the protective assembly (10) of the battery pack (20) is located at the bottom of the electrical equipment and contacts the external environment.

12. An electrical device, characterized by ​ ​ ​

Images