Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment, and relates to the technical field of batteries. The battery pack comprises a battery box, a mounting frame, a battery module, a first buffer piece and a second buffer piece, wherein the battery box is provided with a top and a bottom which are oppositely arranged; the mounting rack is positioned in the battery box and is provided with a mounting cavity; wherein the battery module is located in the mounting cavity, and the bottom of the battery module is in sliding fit with the bottom of the mounting cavity; the bottom of the mounting frame is connected with the bottom of the battery box through a first buffer piece; and the side wall of the battery module is connected with the side wall on the corresponding side of the mounting frame through a second buffer piece. According to the battery pack provided by the invention, the battery pack has shock absorption performance, the influence of shock on the performance of the lithium battery is reduced, and the service life of the lithium battery can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack and an electrical device. Background Art

[0002] When a lithium battery is installed on a device, since the lithium battery is directly placed or fixed in a battery box, the lithium battery will vibrate with the device, and the vibration will affect the performance release of the lithium battery; moreover, the lithium battery may be easily damaged. Utility Model Content

[0003] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and to provide a battery pack and electrical equipment that can enable the battery pack to have shock-absorbing properties, reduce the impact of vibration on the performance of the lithium battery, and increase the service life of the lithium battery.

[0004] This application provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a battery pack, the battery pack comprising:

[0006] A battery box having a top and a bottom disposed opposite to each other;

[0007] A mounting frame and a battery module, wherein the mounting frame is located in the battery box and has a mounting cavity; wherein the battery module is located in the mounting cavity, and the bottom of the battery module and the bottom of the mounting cavity are slidably matched;

[0008] A first buffer member and a second buffer member, the bottom of the mounting frame is connected to the bottom of the battery box through the first buffer member; the side wall of the battery module is connected to the side wall on the mounting frame corresponding to the side wall through the second buffer member.

[0009] In one of the embodiments of the first aspect, the first buffer member includes a first shock absorber and a first elastic buffer plate, one of the two opposite ends of the first shock absorber is connected to the mounting frame, and the other of the two opposite ends of the first shock absorber is abutted against the battery box; one of the two opposite ends of the first elastic buffer plate is connected to the mounting frame, and the other of the two opposite ends of the first elastic buffer plate is abutted against the battery box.

[0010] In one of the embodiments of the first aspect, the second buffer member includes a second shock absorber and a second elastic buffer plate, one of the two opposite ends of the second shock absorber is connected to the mounting frame, and the other of the two opposite ends of the first shock absorber is abutted against the battery box; one of the two opposite ends of the second elastic buffer plate is connected to the mounting frame, and the other of the two opposite ends of the second elastic buffer plate is abutted against the battery box.

[0011] In one embodiment of the first aspect, the first shock absorber includes a first damper and a first spring, the first damper having a large diameter end and a small diameter end opposite to each other, the small diameter end of the first damper being connected to the bottom of the mounting frame, the first spring being sleeved on the first damper, and the first spring being clamped between the mounting frame and the large diameter end of the first damper;

[0012] The second shock absorber includes a second damper and a second spring, the second damper has a large diameter end and a small diameter end relative to each other, the small diameter end of the second damper is connected to the side wall of the mounting frame, the second spring is sleeved on the second damper, and the second spring is clamped between the mounting frame and the large diameter end of the second damper.

[0013] In one embodiment of the first aspect, the top of the battery module is connected to the top of the battery box through a third buffer.

[0014] In one of the embodiments of the first aspect, the third buffer member includes a third elastic buffer plate, one end of the third elastic buffer plate is connected to the top of the battery module, and the other end of the third elastic buffer plate is abutted against the bottom of the battery box.

[0015] In one embodiment of the first aspect, the first elastic buffer plate is configured as a fold line rubber plate;

[0016] And / or, the second elastic buffer plate is configured as a fold line rubber plate;

[0017] And / or, the third elastic buffer plate is configured as a fold line rubber plate.

[0018] In one embodiment of the first aspect, the first elastic buffer plate, the second elastic buffer plate and the third elastic buffer plate are extended in the same direction.

[0019] In one embodiment of the first aspect, the side wall of the mounting frame abuts against the corresponding side wall of the battery box, and the mounting frame and the side wall of the battery box are slidably matched.

[0020] In a second aspect, an embodiment of the present application further provides an electrical device, wherein the electrical device comprises a battery pack as described in any one of the above embodiments.

[0021] The embodiments of the present application have the following advantages:

[0022] The present application provides a battery pack, in which the bottom of the battery module and the bottom of the mounting cavity are slidably matched. This design allows the battery module to have a slight degree of freedom of displacement in the mounting cavity. When the device is subjected to external vibration or impact, this design can reduce the vibration energy directly transmitted to the battery module, because the sliding structure can absorb part of the vibration, similar to the shock absorption principle in the automobile suspension system. In addition, the first buffer is installed between the bottom of the mounting frame and the bottom of the battery box, and its function is to absorb and disperse the vibration of the battery box as a whole, and protect the battery module from direct impact from below. The second buffer is arranged between the side wall of the battery module and the side wall of the mounting frame to provide lateral buffer protection for the battery module. When the device is subjected to side impact or centrifugal force generated by rotational motion, the second buffer can reduce the direct impact of these forces on the battery module, ensuring the stability of the battery module in multiple directions.

[0023] Therefore, through the above design, the battery pack of this application can significantly improve its resistance to vibration, protect the battery module from or less damage by vibration, maintain stable battery performance, reduce damage to the internal structure of the battery caused by vibration, and extend the battery life. In addition, it reduces equipment failures caused by unstable battery performance and improves the reliability and user experience of the entire power-consuming equipment, which is particularly important in mobile devices, transportation vehicles, outdoor equipment and other use scenarios with frequent vibration environments.

[0024] The present application also relates to an electrical device. Since the above-mentioned battery pack has the above-mentioned technical effects, the electrical device including the battery pack should have the same technical effects, which will not be repeated here.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of a battery pack provided by an embodiment of the present application from one perspective is shown;

[0028] Figure 2 A schematic structural diagram of a battery pack provided by an embodiment of the present application from another perspective is shown;

[0029] Figure 3A schematic diagram of an exploded structure of a battery pack provided in an embodiment of the present application is shown;

[0030] Figure 4 A schematic structural diagram of a battery module provided in an embodiment of the present application is shown;

[0031] Figure 5 A schematic structural diagram of a first shock absorber provided in an embodiment of the present application is shown.

[0032] Description of main component symbols:

[0033] 100 -battery box; 200 -battery module; 300 -first buffer; 310 -first elastic buffer plate; 320 -first shock absorber; 321 -first spring; 322 -first damper; 400 -second buffer; 410 -second elastic buffer plate; 420 -second shock absorber; 500 -mounting frame; 600 -third buffer. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] In the related art, lithium battery is a secondary battery (rechargeable battery), which mainly relies on the movement of lithium ions between the positive and negative electrodes to work. When the lithium battery is installed on the equipment, the lithium battery will vibrate with the equipment, and the vibration will affect the performance release of the battery.

[0040] Among them, since the lithium battery is directly placed or fixed in the battery box, the lithium battery will vibrate with the equipment, and the vibration will affect the performance release of the lithium battery; and the lithium battery is easily damaged.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, in order to solve the above technical problems, an embodiment of the present application provides a battery pack, which includes a battery box 100, a mounting frame 500, a battery module 200, a first buffer member 300 and a second buffer member 400, wherein the battery box 100 has a top and a bottom that are relatively arranged; the mounting frame 500 is located in the battery box 100, and the mounting frame 500 has a mounting cavity; wherein the battery module 200 is located in the mounting cavity, and the bottom of the battery module 200 and the bottom of the mounting cavity are slidably matched; the bottom of the mounting frame 500 is connected to the bottom of the battery box 100 through the first buffer member 300; and the side wall of the battery module 200 is connected to the side wall of the mounting frame 500 on the corresponding side thereof through the second buffer member 400.

[0042] In this embodiment, the core carrier of the battery pack is a battery box 100, which has a clear top and bottom, providing a stable shell for the battery module 200. This design clarifies the installation direction of the battery pack and is conducive to the stability of the overall structure.

[0043] The mounting frame 500 and the battery module 200 are slidably matched, that is, it allows the battery module 200 to move within a certain range in the mounting cavity of the mounting frame 500, so that when the battery pack vibrates, the vibration impact directly transmitted to the battery module 200 can be reduced.

[0044] The bottom of the mounting frame 500 is connected to the bottom of the battery box 100 through the first buffer member 300. The first buffer member 300 plays a basic shock-absorbing role. It can absorb and disperse most of the vibration energy transmitted to the bottom of the battery box 100 by the vibration of the equipment, and reduce the vibration force directly transmitted to the battery module 200.

[0045] The side wall of the battery module 200 is connected to the side wall of the mounting frame 500 via a second buffer member 400. This design further enhances the shockproof protection of the battery module 200, ensuring that the battery module 200 can be effectively buffered when the device vibrates in different directions, thereby avoiding damage to the battery caused by lateral impact.

[0046] For example, the first buffer 300 is usually made of elastic materials, such as rubber or polymer, which can effectively convert vibration energy into heat energy or elastic potential energy to reduce vibration transmission. Of course, in other embodiments, the first buffer 300 can also adopt other buffer structures, such as an airbag buffer structure: using an inflated or compressed gas-filled bladder as a buffer element, when impacted, the airbag can be compressed, absorb energy and store it in the form of compressed gas, and then slowly released to reduce the impact force directly transmitted to the battery module 200; memory foam material: using a polyurethane foam material with shape memory properties as a buffer, it can deform according to the force conditions and evenly distribute the pressure, and can gradually return to its original state after the impact ends.

[0047] For example, the second buffer 400 is usually made of elastic materials, such as rubber or polymer, which can effectively convert vibration energy into heat energy or elastic potential energy to reduce vibration transmission. Of course, in other embodiments, the second buffer 400 can also adopt other buffer structures, such as an airbag buffer structure: using an inflated or compressed gas-filled bladder as a buffer element, when impacted, the airbag can be compressed, absorb energy and store it in the form of compressed gas, and then slowly release it, reducing the impact force directly transmitted to the battery module 200; memory foam material: using a polyurethane foam material with shape memory properties as a buffer, it can deform according to the force conditions and evenly distribute the pressure, and can gradually return to its original state after the impact ends.

[0048] Therefore, through the above design, the battery pack of the present application can significantly improve its resistance to vibration, protect the battery module 200 from or less damage by vibration, maintain stable battery performance, reduce damage to the internal structure of the battery caused by vibration, and extend the battery life. In addition, it reduces equipment failures caused by unstable battery performance, improves the reliability and user experience of the entire power-consuming equipment, especially in mobile devices, transportation vehicles, outdoor equipment and other use scenarios with frequent vibration environments.

[0049] like Figure 2 and Figure 4 As shown, in some embodiments, the first buffer member 300 includes a first shock absorber 320 and a first elastic buffer plate 310, one of the two opposite ends of the first shock absorber 320 is connected to the mounting frame 500, and the other of the two opposite ends of the first shock absorber 320 is abutted against the battery box 100; one of the two opposite ends of the first elastic buffer plate 310 is connected to the mounting frame 500, and the other of the two opposite ends of the first elastic buffer plate 310 is abutted against the battery box 100.

[0050] In this embodiment, the first shock absorber 320 is generally designed as a component with a high energy absorption capacity, such as a hydraulic shock absorber, a pneumatic shock absorber or a spring shock absorber. One end of the first shock absorber 320 is connected to the mounting frame 500, and the other end is directly in contact with the battery box 100 or connected through a specific structure, which is not specifically limited here. The function of the first shock absorber 320 is to directly absorb and transform the vertical vibration energy transmitted from the battery box 100 to the mounting frame 500, and transform the kinetic energy into heat energy or potential energy through the compression of the internal fluid or the deformation of the spring, thereby reducing the direct transmission of vibration and protecting the battery module 200.

[0051] The first elastic buffer plate 310 is usually made of rubber, high molecular polymer or other highly elastic materials, one end of which is also connected to the mounting frame 500, and the other end is connected to the battery box 100. Compared with the first shock absorber 320, the first elastic buffer plate 310 focuses more on providing a flexible interface to absorb and disperse lateral forces and small vibrations. It can adapt to the small relative displacement between the mounting frame 500 and the battery box 100, reduce direct hard contact, and further enhance the shock absorption effect.

[0052] Obviously, combined with the dual design of the first shock absorber 320 and the first elastic buffer plate 310, this buffer structure improves the anti-vibration performance of the battery pack in multiple dimensions: the first shock absorber 320 mainly responds to vertical impact and vibration, while the first elastic buffer plate 310 can effectively alleviate lateral force and small vibrations. The combination of the two realizes all-round protection of the battery module 200. The first shock absorber 320 and the first elastic buffer plate 310 work together to absorb and transform vibration energy of different spectra, reduce the impact of vibration on battery performance, and extend the battery life.

[0053] For example, there are multiple first shock absorbers 320, which are divided into multiple groups. The first shock absorbers 320 of each group are arranged at intervals along the X direction, and multiple groups of first shock absorbers 320 are arranged at intervals along the Y direction. The X direction and the Y direction are arranged perpendicular to each other.

[0054] Exemplarily, there are multiple first elastic buffer plates 310, and the multiple first elastic buffer plates 310 are arranged at intervals along the Y direction; wherein, multiple groups of first shock absorbers 320 and multiple first elastic buffer plates 310 are arranged at intervals in sequence.

[0055] like Figure 2 and Figure 4 As shown, in some embodiments, the second buffer member 400 includes a second shock absorber 420 and a second elastic buffer plate 410, one of the two opposite ends of the second shock absorber 420 is connected to the mounting frame 500, and the other of the two opposite ends of the first shock absorber 320 is abutted against the battery box 100; one of the two opposite ends of the second elastic buffer plate 410 is connected to the mounting frame 500, and the other of the two opposite ends of the second elastic buffer plate 410 is abutted against the battery box 100.

[0056] In this embodiment, the second shock absorber 420 is generally designed as a component with a high energy absorption capacity, such as a hydraulic shock absorber, a pneumatic shock absorber or a spring shock absorber. One end of the second shock absorber 420 is connected to the side wall of the mounting frame 500, and the other end is directly in contact with the side wall of the battery box 100 or connected through a specific structure, which is not specifically limited here. The function of the second shock absorber 420 is to directly absorb and transform the vibration energy transmitted from the battery box 100 to the mounting frame 500 laterally, and transform the kinetic energy into heat energy or potential energy through the compression of the internal fluid or the deformation of the spring, thereby reducing the direct transmission of vibration and protecting the battery module 200.

[0057] The second elastic buffer plate 410 is usually made of rubber, high molecular polymer or other highly elastic materials, one end of which is also connected to the side wall of the mounting frame 500, and the other end is connected to the side wall of the battery box 100. Compared with the second shock absorber 420, the second elastic buffer plate 410 focuses more on providing a flexible interface to absorb and disperse lateral forces and small vibrations. It can adapt to the small relative displacement between the mounting frame 500 and the battery box 100, reduce direct hard contact, and further enhance the shock absorption effect.

[0058] Obviously, combined with the dual design of the second shock absorber 420 and the second elastic buffer plate 410, this buffer structure improves the anti-vibration performance of the battery pack in multiple dimensions: the second shock absorber 420 mainly responds to horizontal impact and vibration, while the second elastic buffer plate 410 can effectively alleviate lateral force and small vibrations. The combination of the two realizes all-round protection of the battery module 200. The second shock absorber 420 and the second elastic buffer plate 410 work together to absorb and transform vibration energy of different spectra, reduce the impact of vibration on battery performance, and extend the service life of the battery.

[0059] For example, there are multiple second shock absorbers 420, which are divided into multiple groups, and the second shock absorbers 420 of each group are arranged at intervals along the X direction, and multiple groups of first shock absorbers 320 are arranged at intervals along the Z direction. The X direction, the Y direction and the Z direction are arranged perpendicular to each other.

[0060] Exemplarily, there are multiple second elastic buffer plates 410, and the multiple second elastic buffer plates 410 are arranged at intervals along the Z direction; wherein, multiple groups of second shock absorbers 420 and multiple second elastic buffer plates 410 are arranged at intervals in sequence.

[0061] like Figure 5 As shown, in some embodiments, the first shock absorber 320 includes a first damper 322 and a first spring 321, the first damper 322 has a large diameter end and a small diameter end opposite to each other, the small diameter end of the first damper 322 is connected to the bottom of the mounting frame 500, the first spring 321 is sleeved on the first damper 322, and the first spring 321 is clamped between the mounting frame 500 and the large diameter end of the first damper 322;

[0062] The second shock absorber 420 includes a second damper and a second spring, the second damper has a large diameter end and a small diameter end relative to each other, the small diameter end of the second damper is connected to the side wall of the mounting frame 500, the second spring is sleeved on the second damper, and the second spring is clamped between the mounting frame 500 and the large diameter end of the second damper.

[0063] In these embodiments, the designs of the first shock absorber 320 and the second shock absorber 420 are further refined. The specific structures are as follows:

[0064] The structure and function of the first shock absorber 320: The first damper 322 has two components with different diameter ends. The small diameter end of the first damper 322 is connected to the bottom of the mounting frame 500 through a fixed connection, and the large diameter end of the first damper 322 acts together with the first spring 321. The function of the first damper 322 is to generate resistance when under pressure through its internal structure (which may be oil, gas or other damping media), absorb and consume vibration energy. The first spring 321 is mounted on the first damper 322, located between the mounting frame 500 and the large diameter end of the first damper 322, forming a composite shock absorbing system. The function of the first spring 321 is to store energy and then release it when subjected to pressure or tension, provide restoring force, help the component return to its initial position, and further disperse energy during the dynamic process to reduce the vibration directly transmitted to the battery module 200.

[0065] The structure and function of the second shock absorber 420: The second damper is similar to the first damper 322, but is designed for lateral shock absorption. The small diameter end of the second damper is connected to the side wall of the mounting frame 500, and the rest is not repeated. Such a layout ensures that the battery module 200 can also be effectively protected in the horizontal direction. The second spring is also mounted on the second damper and clamped by the mounting frame 500 and the large diameter end of the second damper to provide buffering for lateral impacts. Among them, the combination of the second spring and the second damper enhances the vibration resistance of the entire battery module 200 in all directions.

[0066] Obviously, through the configuration of the first shock absorber 320 and the second shock absorber 420, the vertical and lateral vibrations of the battery module 200 are fully protected, and the stability and safety of the battery pack in a complex vibration environment are improved. In addition, since the first shock absorber 320 and the second shock absorber 420 are both installed on the battery module 200, it is convenient to disassemble and assemble the battery module 200, the first shock absorber 320 and the second shock absorber 420 to the battery box 100, and the assembly efficiency is high.

[0067] like Figure 2 and Figure 3 As shown, in some embodiments, the top of the battery module 200 is connected to the top of the battery box 100 through the third buffer 600 .

[0068] In these embodiments, the buffer protection system of the entire battery pack is improved by adding a third buffer member 600 between the top of the battery module 200 and the top of the battery box 100. The working principle is as follows:

[0069] The third buffer 600 provides buffer protection for the battery module 200 in the vertical, horizontal and lateral directions, forming an all-round three-dimensional shock absorption system. Therefore, no matter which direction the vibration or impact force comes from, it can be effectively absorbed and dispersed, greatly reducing the direct impact of the vibration on the battery module 200.

[0070] It should be noted that the top of the battery module 200 usually contains sensitive components such as the circuit board and connector of the battery management system, which are particularly sensitive to vibration. The presence of the third buffer 600 can effectively reduce problems such as circuit damage and loose connection caused by the top force, and protect the stability and reliability of the electronic components.

[0071] Obviously, through the buffer connection at the top of the battery module 200, the fixing effect of the battery module 200 in the battery box 100 can also be enhanced, reducing the up and down floating of the battery module 200 caused by equipment movement or vibration, improving the stability of the overall structure, and reducing internal wear.

[0072] For example, the third buffer member 600 can also be made of rubber, silicone, spring, foam material or other highly elastic and durable materials, and can be designed as a buffer pad, an elastic connector or a complex structure combining a shock absorber and a spring to adapt to different shock absorption requirements and installation spaces.

[0073] In addition, the third buffer member 600 is installed on the battery module 200 , so that the third buffer member 600 can be quickly disassembled and assembled during equipment maintenance or battery module 200 replacement.

[0074] like Figure 3 As shown, in some embodiments, the third buffer member 600 includes a third elastic buffer plate, one end of the third elastic buffer plate is connected to the top of the battery module 200, and the other end of the third elastic buffer plate is abutted against the bottom of the battery box 100.

[0075] In these embodiments, the third buffer member 600 further optimizes the top shock absorption design of the battery module 200 by adopting the form of a third elastic buffer plate. One end of the third elastic buffer plate is directly and tightly connected to the top of the battery module 200, ensuring that the vibration transmitted from the battery box 100 to the top of the battery module 200 can be effectively alleviated by the buffer plate.

[0076] In some embodiments, the first elastic buffer plate 310 is configured as a fold line rubber plate, the second elastic buffer plate 410 is configured as a fold line rubber plate, and the third elastic buffer plate is configured as a fold line rubber plate.

[0077] In these embodiments, the first elastic buffer plate 310, the second elastic buffer plate 410 and the third elastic buffer plate are all designed as folded rubber plates. The unique structural design of the folded rubber plates and the folded shape on the surface or inside thereof can effectively increase the deformation capacity of the material. When subjected to external force, the folded area can bend along the fold, thereby absorbing and dispersing more impact energy. This structural flexibility enables it to more efficiently cope with vibrations and impacts in various directions, protecting the battery module 200 from damage.

[0078] Although the fold line rubber plate can bend and deform to absorb energy when subjected to force, its overall structure remains relatively stable and will not be permanently deformed or damaged. This is due to the fold line design that provides flexibility while maintaining the necessary rigid support to ensure a stable connection between the battery module 200 and the mounting frame 500.

[0079] In addition, the fold line rubber plate can adapt to the slight size change or position offset between the battery module 200 and the mounting frame 500, and its elastic characteristics allow free expansion and contraction within a certain range, which is particularly important for dealing with the slight displacement caused by factors such as thermal expansion and contraction during the use of the device, ensuring the reliability and tightness of long-term use. In addition, the fold line design helps to break the continuity of a single plane, which can change the propagation path of the vibration wave, effectively suppress or disperse the vibration of a specific frequency, and reduce the occurrence of resonance, which is especially important for protecting sensitive electronic components.

[0080] Of course, in other embodiments, the first elastic buffer plate 310 , the second elastic buffer plate 410 and the third elastic buffer plate may also be configured as a flat rubber plate structure, such as a rubber plate, a silicone plate, etc.

[0081] In some embodiments, the first elastic buffer plate 310 , the second elastic buffer plate 410 , and the third elastic buffer plate are extended in the same direction.

[0082] like Figure 3 As shown, in these embodiments, the first elastic buffer plate 310, the second elastic buffer plate 410 and the third elastic buffer plate are extended in the same direction to ensure that the battery module 200 obtains continuous and uniform buffer protection in this direction. No matter where the vibration comes from, it can be effectively absorbed and dispersed by this coherent buffer system.

[0083] Exemplarily, the first elastic buffer plate 310 , the second elastic buffer plate 410 and the third elastic buffer plate all extend along the Y direction.

[0084] like Figure 2 As shown, in some embodiments, the side walls of the mounting bracket 500 abut against the corresponding side walls of the battery box 100 , and the mounting bracket 500 and the side walls of the battery box 100 are slidably matched.

[0085] In this embodiment, the mounting frame 500 can be moved in the Z direction to cooperate with the displacement buffer of the first buffer member 300. The four side walls of the mounting frame 500 can be respectively abutted against the four side walls of the mounting cavity to limit its horizontal position and reduce its shaking, that is, reduce its lateral vibration.

[0086] In some embodiments, the present application also provides an electrical device, which includes a battery pack as described in any one of the above embodiments.

[0087] Since the above-mentioned battery pack has the above-mentioned technical effects, the electrical equipment including the battery pack should have the same technical effects, which will not be repeated here.

[0088] The technical solutions described in the embodiments of the present application are applicable to various electrical equipment using batteries. The electrical equipment may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc.; the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc.; the electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.

[0089] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0090] The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle. A motor, a controller and a battery pack can be set inside the vehicle. The controller is used to control the battery pack to power the motor. For example, a battery pack can be set at the bottom, front or rear of the vehicle. The battery pack can be used to power the vehicle; for example, the battery pack can be used as the operating power source of the vehicle and used in the circuit system of the vehicle; for example, the battery pack is used for the working power requirements of the vehicle during startup, navigation and operation.

[0091] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0092] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0093] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A battery pack, characterized in that: The battery pack comprises: A battery box having a top and a bottom disposed opposite to each other; A mounting frame and a battery module, wherein the mounting frame is located in the battery box and has a mounting cavity; wherein the battery module is located in the mounting cavity, and the bottom of the battery module and the bottom of the mounting cavity are slidably matched; A first buffer member and a second buffer member, the bottom of the mounting frame is connected to the bottom of the battery box through the first buffer member; the side wall of the battery module is connected to the side wall on the mounting frame corresponding to the side wall through the second buffer member.

2. The battery pack according to claim 1, characterized in that: The first buffer member includes a first shock absorber and a first elastic buffer plate, one of two opposite ends of the first shock absorber is connected to the mounting frame, and the other of two opposite ends of the first shock absorber is in contact with the battery box; One of the two opposite ends of the first elastic buffer plate is connected to the mounting bracket, and the other of the two opposite ends of the first elastic buffer plate is in contact with the battery box.

3. The battery pack according to claim 2, characterized in that: The second buffer member includes a second shock absorber and a second elastic buffer plate, one of the two opposite ends of the second shock absorber is connected to the mounting frame, and the other of the two opposite ends of the first shock absorber is abutted against the battery box; one of the two opposite ends of the second elastic buffer plate is connected to the mounting frame, and the other of the two opposite ends of the second elastic buffer plate is abutted against the battery box.

4. The battery pack according to claim 3, characterized in that: The first shock absorber includes a first damper and a first spring, the first damper has a large diameter end and a small diameter end opposite to each other, the small diameter end of the first damper is connected to the bottom of the mounting frame, the first spring is sleeved on the first damper, and the first spring is clamped between the mounting frame and the large diameter end of the first damper; The second shock absorber includes a second damper and a second spring, the second damper has a large diameter end and a small diameter end relative to each other, the small diameter end of the second damper is connected to the side wall of the mounting frame, the second spring is sleeved on the second damper, and the second spring is clamped between the mounting frame and the large diameter end of the second damper.

5. The battery pack according to claim 3, characterized in that: The top of the battery module is connected to the top of the battery box through a third buffer.

6. The battery pack according to claim 5, characterized in that: The third buffer member includes a third elastic buffer plate, one end of the third elastic buffer plate is connected to the top of the battery module, and the other end of the third elastic buffer plate is abutted against the bottom of the battery box.

7. The battery pack according to claim 6, characterized in that: The first elastic buffer plate is configured as a fold line rubber plate; And / or, the second elastic buffer plate is configured as a fold line rubber plate; And / or, the third elastic buffer plate is configured as a fold line rubber plate.

8. The battery pack according to claim 6, characterized in that: The first elastic buffer plate, the second elastic buffer plate and the third elastic buffer plate are extended in the same direction.

9. The battery pack according to claim 1, characterized in that: The side wall of the mounting frame abuts against the corresponding side wall of the battery box, and the mounting frame and the side wall of the battery box are slidably matched.

10. An electrical device, characterized in that: The electrical device comprises the battery pack according to any one of claims 1 to 9.

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