Battery components and vehicles

Abstract

This application provides a battery assembly and a vehicle. The battery assembly includes: a battery; a first mating mechanism connected to one side of the battery; a first mating portion equipped with a locking mechanism that can switch between a locked state and a disengaged state; and a driving unit connected to the battery for driving the battery to move along a first direction in the disengaged state. In the locked state, the first mating portion is mated and connected to the first mating mechanism; in the disengaged state, the first mating portion is separated from the first mating mechanism. With this configuration, the locking mechanism is in a locked state under normal vehicle operating conditions, achieving a stable connection between the first mating portion and the first mating mechanism. When the battery experiences safety risks such as thermal runaway, the locking mechanism can switch to a disengaged state, separating the first mating portion from the first mating mechanism, thus detaching the battery from the vehicle body, which helps improve the safety and reliability of the vehicle.

Description

Technical Field

[0001] This application relates to the field of automotive battery technology, and in particular to a battery assembly and vehicle. Background Technology

[0002] With the rapid development of pure electric vehicle-related technologies, electric vehicle technology is gradually maturing, and the capacity of car batteries is continuously expanding.

[0003] Existing battery technology still has some potential risks and problems: fast charging can inject a large amount of electrical energy into the battery in a short time, causing the battery to overheat; malfunctions in charging equipment may lead to unstable current or abnormal battery charging, which may damage the battery or cause a fire, thereby damaging the vehicle body and causing unnecessary economic losses; at the same time, if the vehicle encounters uneven road surfaces, the chassis battery pack may be damaged by impact, leading to emergencies such as thermal runaway.

[0004] Therefore, how to reduce the hazards of the above-mentioned working conditions and enable the battery to quickly detach from the vehicle body under abnormal conditions has become an urgent problem to be solved. Summary of the Invention

[0005] In view of this, this application provides a battery assembly and a vehicle that enables rapid detachment of the battery from the vehicle body.

[0006] Specifically, the following technical solutions are included:

[0007] In a first aspect, embodiments of this application provide a battery assembly, including:

[0008] Battery;

[0009] The first mating mechanism is connected to one side of the battery;

[0010] The first mating part is provided with a locking mechanism, which can switch between a locked state and a disengaged state;

[0011] The drive unit is connected to the battery in a transmission manner, and the drive unit is used to drive the battery to move along a first direction in the separated state;

[0012] In the locked state, the first mating part is engaged with the first mating mechanism; in the disengaged state, the first mating part is disengaged from the first mating mechanism.

[0013] In an optional embodiment, the first mating part has a receiving cavity, and in the locked state, the first mating mechanism is located in the receiving cavity; in the separated state, the driving part drives the battery to move so that the first mating mechanism separates from the receiving cavity.

[0014] In an optional embodiment, the battery assembly further includes a connecting portion, which is connected to the first mating mechanism and the first mating portion respectively;

[0015] The first mating part has a notch extending along the first direction, the notch being used for insertion of the connecting part.

[0016] In an optional embodiment, there are multiple first mating mechanisms and first mating parts, and the first mating mechanisms and first mating parts are provided on both sides of the battery in the second direction, wherein the second direction is perpendicular to the first direction.

[0017] In an optional embodiment, the locking mechanism includes a connected power member and a pin, the power member being used to drive the pin to move linearly;

[0018] The first mating part has a first connecting hole, and the first mating mechanism has a second connecting hole;

[0019] In the locked state, the pin passes through the first connecting hole and is inserted into the second connecting hole;

[0020] In the separated state, the pin is separated from the second connecting hole.

[0021] In an optional embodiment, the pin tapers from a first end to a second end, and the shape of the second connecting hole is adapted to the shape of the pin, wherein the first end of the pin is further away from the first mating portion than the second end of the pin.

[0022] In an optional embodiment, the battery assembly further includes a second mating mechanism and a second mating part, the second mating mechanism being connected to one side of the battery and movably connected to the second mating part, and the driving part driving the battery to move by driving the second mating mechanism.

[0023] In an optional embodiment, the second mating mechanism is provided with a transmission rack, and the output shaft of the drive unit is connected to a transmission gear, which meshes with the transmission rack.

[0024] In an optional embodiment, the second mating mechanism is connected to one end of the first mating mechanism in the first direction, and the first mating portion and the second mating portion are adjacent to each other in the first direction.

[0025] Secondly, embodiments of this application provide a vehicle, including a vehicle body and a battery assembly provided in any of the embodiments of the first aspect, wherein the battery assembly is detachably connected to the vehicle body, and a first mating portion of the battery assembly is mounted on the vehicle body.

[0026] The beneficial effects of the technical solution provided in this application embodiment include at least the following: the locking mechanism is in a locked state under normal vehicle operating conditions, which can achieve a stable connection between the first mating part and the first mating mechanism and limit the battery; when the battery has safety risks such as thermal runaway, the locking mechanism can switch to a separation state, so that the first mating part and the first mating mechanism are separated, and the battery can move under the drive of the drive part, so as to separate the battery from the vehicle body, which helps to improve the safety and reliability of the vehicle and prevent the battery from causing damage. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the battery assembly provided in an embodiment of this application;

[0029] Figure 2 A schematic diagram of the structure of the first mating mechanism and the first mating part provided in the embodiments of this application;

[0030] Figure 3 A schematic diagram of the engagement of the first engaging mechanism and the first engaging part when the locking mechanism provided in the embodiment of this application is in a disengaged state;

[0031] Figure 4 A schematic diagram of the engagement between the first mating mechanism and the first mating part when the locking mechanism provided in the embodiment of this application is in the locked state;

[0032] Figure 5 This is a schematic diagram of the locking mechanism provided in an embodiment of this application;

[0033] Figure 6 A schematic diagram of the second mating mechanism and the second mating part provided in the embodiments of this application;

[0034] Figure 7 A side view of the second mating mechanism provided in an embodiment of this application;

[0035] Figure 8 A schematic diagram illustrating the cooperation between the second cooperation mechanism and the drive unit provided in the embodiments of this application;

[0036] Figure 9 This is a schematic diagram showing the relative positions of the first mating part and the second mating part provided in an embodiment of this application.

[0037] The reference numerals in the figure are respectively:

[0038] 1-Battery; 2-First mating mechanism; 21-Second connecting hole; 3-First mating part; 31-Locking mechanism; 31a-Power component; 31b-Pin; 32-Receiving cavity; 33-Notch; 34-First connecting hole; 4-Drive part; 41-Transmission gear; 5-Connecting part; 6-Second mating mechanism; 61-Transmission rack; 7-Second mating part;

[0039] 100 - Body.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In the embodiments of this application, directional terms such as "upper," "lower," and "side" are generally used in the following ways: Figure 1 The relative positions shown are based on the given information, and these directional terms are used only to more clearly describe the relationships between structures, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged.

[0043] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art. Some technical terms appearing in the embodiments of this application are described below.

[0044] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0045] This application provides a battery assembly, including a battery 1, a first mating mechanism 2, a first mating part 3, and a driving part 4.

[0046] For example, battery modules are used in vehicles such as electric vehicles and hybrid electric vehicles, and the battery modules can power the vehicles.

[0047] The first mating mechanism 2 is connected to one side of the battery 1. The first mating part 3 is provided with a locking mechanism 31, which can switch between a locked state and a disengaged state. The driving part 4 is connected to the battery 1 in a transmission manner, and is used to drive the battery 1 to move along the first direction Y in the disengaged state.

[0048] For example, the drive unit 4 can be a power device such as a motor, electric push rod, cylinder, or hydraulic cylinder. The drive unit 4 can directly drive the battery 1, or indirectly drive the battery 1 to move by driving other devices connected to the battery 1.

[0049] For example, the first mating mechanism 2 is located on one side of the battery 1 in the width direction, such as... Figure 1 and Figure 9 As shown, the first direction Y is the length direction of battery 1, the second direction X is the width direction of battery 1, and the third direction Z is the thickness direction of battery 1. The first direction Y, the second direction X, and the third direction Z are perpendicular to each other. The first mating mechanism 2 is disposed on one side of the second direction X of battery 1.

[0050] For example, the first mating part 3 is fixed in the vehicle body 100, and the driving part 4 can drive the battery 1 to move relative to the first mating part 3, so that the first mating mechanism 2 moves away from or closer to the first mating part 3, so as to realize the separation or connection of the battery 1 and the vehicle body 100.

[0051] In the locked state, the first mating part 3 is mated and connected with the first mating mechanism 2; in the disengaged state, the first mating part 3 is separated from the first mating mechanism 2.

[0052] Understandably, the locking mechanism 31 can automatically switch between a locked state and a disengaged state according to the state of the battery 1, making the installation and removal of the battery 1 more convenient. In the locked state, the battery 1 remains in a fixed position under the action of the cooperation between the first cooperating mechanism 2 and the second cooperating part 7; in the disengaged state, the battery 1 is not connected to the vehicle body 100, so the battery 1 can be driven away from the vehicle body 100 by the driving part 4.

[0053] Specifically, battery 1 has a BMS (battery management system), a locking mechanism 31, a drive unit 4, and a BMS communication connection.

[0054] When the battery 1 is in normal working condition, the locking mechanism 31 is in a locked state, and the first mating part 3 and the first mating mechanism 2 are connected to each other to limit the position of the battery 1 and prevent the battery 1 from shifting.

[0055] When the BMS detects abnormal conditions such as thermal runaway of battery 1, the BMS sends a control signal to the locking mechanism 31 and the drive unit 4. The locking mechanism 31 switches from the locking state to the disengagement state, causing the first mating part 3 and the first mating mechanism 2 to separate. Subsequently, the drive unit 4 drives battery 1 to move along the first direction Y, causing battery 1 to detach from the vehicle body 100, thereby separating battery 1 from the vehicle body 100 and reducing the harm caused by thermal runaway of battery 1.

[0056] The battery assembly provided in this application embodiment has a locking mechanism 31 that is in a locked state under normal vehicle operating conditions, enabling a stable connection between the first mating part 3 and the first mating mechanism 2, and limiting the battery 1. When the battery 1 experiences safety risks such as thermal runaway, the locking mechanism 31 can switch to a disengaged state, separating the first mating part 3 from the first mating mechanism 2, allowing the battery 1 to move under the drive of the drive part 4, thereby detaching the battery 1 from the vehicle body 100. This helps improve the safety and reliability of the vehicle and prevents the battery 1 from causing harm to the vehicle or even the user.

[0057] In one specific embodiment, the first mating part 3 has a receiving cavity 32. In the locked state, the first mating mechanism 2 is located in the receiving cavity 32. In the separated state, the driving part 4 drives the battery 1 to move so that the first mating mechanism 2 is separated from the receiving cavity 32.

[0058] like Figure 2 As shown, the shapes of the first mating mechanism 2 and the first mating part 3 are compatible, and both the first mating mechanism 2 and the first mating part 3 are roughly rectangular.

[0059] The first mating mechanism 2 can move closer to or further away from the first mating part 3 along the first direction Y, thereby entering the receiving cavity 32 of the first mating part 3 or disengaging from the receiving cavity 32 of the first mating part 3.

[0060] The first mating part 3 has an opening on at least one side in the first direction Y, so that when the first mating mechanism 2 is located in the receiving cavity 32, it limits the first mating mechanism 2 in the second direction X, preventing the position of the first mating part 3 in the second direction X from shifting, thereby affecting the installation position of the battery 1.

[0061] For example, the first mating part 3 has an opening only on its first side in the first direction Y, and the opening area is greater than or equal to the maximum first cross-sectional area of ​​the first mating mechanism 2, so that the first mating mechanism 2 can enter or leave the receiving cavity 32 through the opening; the second side of the first mating part 3 in the first direction Y is closed or has an opening area smaller than the minimum first cross-sectional area of ​​the first mating mechanism 2, which acts as a stop for the first mating mechanism 2, preventing the first mating mechanism 2 from dislodging from the second side of the first mating part 3 in the first direction Y after entering the receiving cavity 32. It should be noted that the first cross-sectional area is the area of ​​the cross section obtained by cutting the first mating mechanism 2 with a plane perpendicular to the first direction Y.

[0062] Similarly, the closed or open areas on both sides of the first mating part 3 in the second direction X are smaller than the minimum second cross-sectional area of ​​the first mating mechanism 2, so as to limit the first mating mechanism 2 in the second direction X and prevent the first mating part 3 from coming out of the receiving cavity 32 along the second direction X. It should be noted that the second cross-sectional area is: the area of ​​the cross section obtained by cutting the first mating mechanism 2 with a plane perpendicular to the second direction X.

[0063] Similarly, the closed or open area of ​​the first mating part 3 on the upper side in the third direction Z is smaller than the minimum longitudinal cross-sectional area of ​​the first mating mechanism 2, so as to limit the first mating mechanism 2 in the third direction Z and prevent the first mating part 3 from dislodging from the top of the receiving cavity 32 along the third direction Z. It should be noted that the longitudinal cross-sectional area of ​​the first mating mechanism 2 is: the area of ​​the cross section obtained by cutting the first mating mechanism 2 with a plane perpendicular to the third direction Z.

[0064] In a further embodiment, the battery assembly further includes a connecting portion 5, which is connected to both the first mating mechanism 2 and the first mating portion 3. The first mating portion 3 has a notch 33 extending along a first direction Y, which is used for insertion of the connecting portion 5.

[0065] like Figure 2 As shown, the first end of the connecting part 5 in the second direction X is connected to the side wall of the battery 1, and the second end of the connecting part 5 in the second direction X is connected to the first mating mechanism 2.

[0066] For example, the connecting part 5, the first mating mechanism 2 and the battery 1 housing are integrally molded, which facilitates manufacturing.

[0067] like Figure 2 As shown, the notch 33 is located on the side of the first mating part 3 in the second direction X, near the battery 1, and the notch 33 penetrates the first mating part 3 along the second direction X. The length of the notch 33 is less than the length of the first mating part 3, and the groove wall of the notch 33 is connected to the end face of the first end of the first mating part 3 in the first direction Y.

[0068] With this configuration, during the relative movement between the first mating mechanism 2 and the first mating part 3, the connecting part 5 inserts into the notch 33 and moves along the first direction Y. When the connecting part 5 moves to the end of the notch 33, the first mating mechanism 2 reaches its limit position and no longer continues to advance along the first direction Y. It can be understood that the end of the notch 33 is located away from the first end of the first direction Y of the first mating part 3.

[0069] Alternatively, the length of the notch 33 can also be equal to the length of the first mating part 3, that is, the notch 33 penetrates the side wall of the first mating part 3 along the first direction Y.

[0070] The dimension of the notch 33 along the third direction Z is adapted to the dimension of the connecting part 5 along the third direction Z, that is, the dimension of the notch 33 along the third direction Z is equal to or slightly larger than the dimension of the connecting part 5 along the third direction Z. With this setting, the notch 33 can avoid the connecting part 5 while limiting the connecting part 5 and preventing the connecting part 5 from shifting along the third direction Z.

[0071] In a further embodiment, there are multiple first mating mechanisms 2 and first mating parts 3, and the first mating mechanisms 2 and first mating parts 3 are provided on both sides of the battery 1 in the second direction X.

[0072] like Figure 1 As shown, there are six first mating mechanisms 2. Each side of the battery 1 in the second direction X is provided with three mating mechanisms evenly spaced along the first direction Y. The six first mating mechanisms 2 are symmetrically distributed along the second direction X, which not only improves the connection strength between the battery 1 and the vehicle body 100, but also improves the connection uniformity between the battery 1 and the vehicle body 100.

[0073] Optionally, the number of locking mechanisms 31 may be one or more, such as Figure 1 As shown, there are two locking mechanisms 31, which are respectively disposed on both sides of the battery 1 in the second direction X, and are symmetrically arranged along the second direction X. For example, the two locking mechanisms 31 are located at the front end of the battery 1, facilitating the positioning of the battery 1 within the vehicle body 100 and ensuring accurate positioning of the battery 1 within the vehicle body 100 in the locked state. It can be understood that the front end of the battery 1 is the end of the battery 1 closest to the first mating part 3 during the insertion of the first mating mechanism 2 into the receiving cavity 32 in the first direction Y.

[0074] In one specific embodiment, the locking mechanism 31 includes a connected power member 31a and a pin 31b, wherein the power member 31a drives the pin 31b to move linearly. The first mating part 3 has a first connecting hole 34, and the first mating mechanism 2 has a second connecting hole 21. In the locked state, as... Figure 4As shown, pin 31b passes through the first connecting hole 34 and is inserted into the second connecting hole 21. In the disassembled state, as... Figure 3 As shown ( Figure 3 To demonstrate the structure of the second connecting hole 21, the first mating part 3 is moved a certain distance in the vertical direction, and the pin 31b is separated from the second connecting hole 21.

[0075] For example, the locking mechanism 31 is a solenoid valve, and the power component 31a includes structures such as magnets and coils. The power component 31a uses the principle of electromagnetic induction to generate a magnetic field inside it, and drives the pin 31b to move along its own length direction through the action of electromagnetic force, thereby realizing the switching between the locking state and the disengagement state.

[0076] For example, the locking mechanism 31 is disposed on the side of the first mating part 3 near the battery 1, and the length direction of the pin 31b is parallel to the second direction X. The first connecting hole 34 is a through hole and penetrates the side wall of the first mating part 3 along the second direction X, so that the pin 31b can pass through the first connecting hole 34 and extend into the receiving cavity 32.

[0077] After the first mating mechanism 2 is positioned in the receiving cavity 32, the positions of the first connecting hole 34 and the second connecting hole 21 correspond so that the pin 31b passes through the first connecting hole 34 and is inserted into the second connecting hole 21, thereby confining the first mating mechanism 2 within the receiving cavity 32. At this time, the locking mechanism 31 is in a locked state.

[0078] Optionally, the locking mechanism 31 can also be located on the top of the first mating part 3, so that the length direction of the pin 31b is parallel to the third direction Z. Correspondingly, the first connecting hole 34 is located on the top wall of the first mating part 3, and the second connecting hole 21 is located on the top of the first mating mechanism 2.

[0079] The locking mechanism 31 is connected to the BMS. When the BMS detects abnormal conditions such as thermal runaway of the battery 1, the BMS sends a control signal to the locking mechanism 31 and the drive unit 4. The power component 31a is energized and drives the pin 31b to move along its own length direction through the action of electromagnetic force, causing the pin 31b to retract to the side where the battery 1 is located and separate from the second connecting hole 21. At this time, the locking mechanism 31 switches from the locking state to the separation state, so that the battery 1 and the vehicle body 100 are separated. Subsequently, the drive unit 4 drives the battery 1 to move along the first direction Y, so that the battery 1 is detached from the vehicle body 100, thereby reducing the harm caused by thermal runaway of the battery 1.

[0080] The locking mechanism 31 can be installed on the first mating part 3 by means of bonding, fastener connection, welding, etc., and this application does not make specific limitations.

[0081] Optionally, the cross-sectional shape of the pin 31b and the shapes of the first connecting hole 34 and the second connecting hole 21 can be circular, elliptical, rectangular, triangular or other polygonal / irregular shapes, and the cross-sectional shape of the pin 31b and the shapes of the first connecting hole 34 and the second connecting hole 21 can be the same or different.

[0082] In one specific embodiment, the pin 31b tapers from the first end to the second end, and the shape of the second connecting hole 21 is adapted to the shape of the pin 31b, wherein the first end of the pin 31b is further away from the first mating part 3 than the second end of the pin 31b.

[0083] For example, such as Figure 4 As shown, the pin 31b is in the shape of a frustum, and the outer diameter of the pin 31b gradually decreases from the first end to the second end. That is, in the locked state, the outer diameter of the end of the pin 31b near the second connecting hole 21 is smaller than the outer diameter of the end of the pin 31b away from the second connecting hole 21.

[0084] With this setting, during the process of switching the locking mechanism 31 from the locked state to the disengaged state, the pin 31b can be quickly disengaged from the second connecting part 5, thereby increasing the separation speed of the battery 1 and the vehicle body 100 and preventing the pin 31b from getting stuck in the second connecting part 5; at the same time, during the process of switching the locking mechanism 31 to the locked state, the pin 31b can be quickly positioned with the second connecting hole 21, so that the pin 31b can be quickly inserted into the second connecting hole 21.

[0085] In one embodiment, the battery assembly further includes a second mating mechanism 6 and a second mating part 7. The second mating mechanism 6 is connected to one side of the battery 1 and is movably connected to the second mating part 7. The driving part 4 drives the battery 1 to move by driving the second mating mechanism 6.

[0086] Optionally, the second mating mechanism 6 and the second mating part 7 are connected by transmission through gears, connecting rods, etc., and the driving part 4 directly drives the second mating mechanism 6 to move in the first direction Y, thereby indirectly driving the battery 1 to move.

[0087] like Figure 1 As shown, the second mating mechanism 6 is located on one side of the width direction of the battery 1, the second mating part 7 is fixed in the vehicle body 100, the second mating part 7 extends along the first direction Y, and the second mating mechanism 6 is movably connected to the second mating part 7 so that the second mating mechanism 6 can move relative to the second mating part 7 under the drive of the drive part 4, thereby driving the battery 1 to move relative to the vehicle body 100.

[0088] For example, the second mating part 7 is a guide structure such as a track, groove, or slide, which can guide the second mating mechanism 6 to move along the first direction Y. Figure 6 or Figure 9As shown, the second mating part 7 is divided into two mutually spaced parts along the second direction X, in which the second mating mechanism 6 is clamped. The second mating part 7 has a limiting groove, the shape of which is the same as the shape of the two sides of the second mating mechanism 6 in the second direction X. By inserting the two sides of the second mating mechanism 6 in the second direction X into the limiting groove, the second mating mechanism 6 is limited in the second direction X.

[0089] In a specific embodiment, such as Figure 8 As shown, the second mating mechanism 6 is provided with a transmission rack 61, and the output shaft of the drive unit 4 is connected to a transmission gear 41, which meshes with the transmission rack 61.

[0090] For example, such as Figure 6 and Figure 7 As shown, the drive unit 4 is located above the second mating mechanism 6, the transmission rack 61 is disposed on the top of the second mating mechanism 6, the transmission gear 41 is coaxially connected to the output shaft of the drive unit 4, and the top of the second mating unit 7 is provided with an opening so that the transmission rack 61 meshes with the transmission gear 41.

[0091] Specifically, when the BMS detects abnormal conditions such as thermal runaway of battery 1, the BMS sends control signals to the locking mechanism 31 and the drive unit 4. The locking mechanism 31 switches from the locked state to the disengaged state. The output shaft of the drive unit 4 drives the transmission gear 41 to rotate, and then drives the transmission rack 61 meshing with the transmission gear 41 to produce linear motion, thereby causing the battery 1 to move linearly along the first direction Y, so that the battery 1 is detached from the vehicle body 100, thereby reducing the harm caused by thermal runaway of battery 1.

[0092] In a specific embodiment, such as Figure 9 As shown, the second mating mechanism 6 is connected to one end of the first mating mechanism 2 in the first direction Y, and the first mating part 3 and the second mating part 7 are adjacent to each other in the first direction Y.

[0093] The number of the second mating mechanism 6 and the second mating part 7 can be one or more, for example... Figure 1 As shown, there are two second mating mechanisms 6, which are symmetrically distributed along the second direction X and located at the front end of the battery 1. Each second mating mechanism 6 is connected to a first mating mechanism 2 along the first direction Y, saving the space occupied by the battery assembly in the second direction X.

[0094] Accordingly, the first mating part 3 and the second mating part 7 are adjacent to each other in the first direction Y, and the second end of the first mating part 3 in the first direction Y is provided with an opening so that the second mating mechanism 6 can pass through.

[0095] In one specific embodiment, the usage process of the battery assembly provided in this application is as follows:

[0096] Connect the second mating mechanism 6 to the second mating part 7 so that the first mating mechanism 2 is located in the receiving cavity 32 of the first mating part 3. Under the normal working condition of the battery 1, switch the locking mechanism 31 to the locking state so that the pin 31b passes through the first connecting hole 34 and is inserted into the second connecting hole 21.

[0097] When the BMS detects abnormal conditions such as thermal runaway of battery 1, the BMS sends control signals to the locking mechanism 31 and the drive unit 4. The power component 31a is energized and drives the pin 31b to move along its own length direction through the action of electromagnetic force, causing the pin 31b to retract to the side where battery 1 is located and separate from the second connecting hole 21. At this time, the locking mechanism 31 switches from the locked state to the separated state. The output shaft of the drive unit 4 drives the transmission gear 41 to rotate, and then drives the transmission rack 61 meshing with the transmission gear 41 to produce linear motion, thereby causing the battery 1 to move linearly along the first direction Y, so that the battery 1 is detached from the vehicle body 100, thereby reducing the harm caused by thermal runaway of battery 1.

[0098] This application also provides a vehicle, including a body 100 and a battery assembly provided in any of the above embodiments. The battery assembly is detachably connected to the body 100, and a first mating part 3 of the battery assembly is installed on the body 100.

[0099] The vehicles are electric vehicles, hybrid electric vehicles, etc., and the battery packs are used to power the vehicles.

[0100] The vehicle provided in this application embodiment has a locking mechanism 31 that is in a locked state under normal operating conditions, enabling a stable connection between the first mating part 3 and the first mating mechanism 2, and limiting the battery 1. When the battery 1 experiences safety risks such as thermal runaway, the locking mechanism 31 can switch to a disengaged state, separating the first mating part 3 from the first mating mechanism 2, allowing the battery 1 to move under the drive of the drive part 4, thereby detaching the battery 1 from the vehicle body 100. This helps improve the safety and reliability of the vehicle and prevents the battery 1 from causing harm to the vehicle or even the user.

[0101] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0102] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0103] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A battery assembly, characterized in that, The battery assembly includes: Battery (1); The first mating mechanism (2) is connected to one side of the battery (1); The first mating part (3) is provided with a locking mechanism (31) and a receiving cavity (32). The locking mechanism (31) can switch between a locked state and a disengaged state. In the locked state, the first mating mechanism (2) is located in the receiving cavity (32); in the disengaged state, the first mating mechanism (2) is separated from the receiving cavity (32). The drive unit (4) is connected to the battery (1) in a transmission connection and is used to drive the battery (1) to move along the first direction (Y) in the separated state so that the first mating mechanism (2) is separated from the receiving cavity (32); The connecting part (5) is connected to the first mating mechanism (2) and the first mating part (3) respectively. The first mating part (3) has a notch (33) extending along the first direction (Y). The notch (33) is used for the connecting part (5) to be inserted. The length of the notch (33) is less than the length of the first mating part (3). The size of the notch (33) along the third direction (Z) is adapted to the size of the connecting part (5) along the third direction (Z). The first direction (Y) is perpendicular to the third direction (Z).

2. The battery assembly according to claim 1, characterized in that, There are multiple first mating mechanisms (2) and first mating parts (3). The first mating mechanism (2) and first mating parts (3) are provided on both sides of the second direction (X) of the battery (1), wherein the second direction (X) is perpendicular to the first direction (Y).

3. The battery assembly according to claim 1, characterized in that, The locking mechanism (31) includes a connected power element (31a) and a pin (31b), wherein the power element (31a) is used to drive the pin (31b) to move linearly; The first mating part (3) has a first connecting hole (34), and the first mating mechanism (2) has a second connecting hole (21). In the locked state, the pin (31b) passes through the first connecting hole (34) and is inserted into the second connecting hole (21); In the separated state, the pin (31b) is separated from the second connecting hole (21).

4. The battery assembly according to claim 3, characterized in that, The pin (31b) tapers from the first end to the second end, and the shape of the second connecting hole (21) is adapted to the shape of the pin (31b). The first end of the pin (31b) is further away from the first mating part (3) than the second end of the pin (31b).

5. The battery assembly according to claim 1, characterized in that, The battery assembly also includes a second mating mechanism (6) and a second mating part (7). The second mating mechanism (6) is connected to one side of the battery (1) and is movably connected to the second mating part (7). The driving part (4) drives the battery (1) to move by driving the second mating mechanism (6).

6. The battery assembly according to claim 5, characterized in that, The second mating mechanism (6) is provided with a transmission rack (61), and the output shaft of the drive unit (4) is connected to a transmission gear (41), which meshes with the transmission rack (61).

7. The battery assembly according to claim 5, characterized in that, The second mating mechanism (6) is connected to one end of the first mating mechanism (2) in the first direction (Y), and the first mating part (3) and the second mating part (7) are adjacent to each other in the first direction (Y).

8. A vehicle, characterized in that, Includes a vehicle body (100) and a battery assembly as described in any one of claims 1 to 7, wherein the battery assembly is detachably connected to the vehicle body (100) and a first mating part (3) of the battery assembly is mounted on the vehicle body (100).

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