A power battery pack and a vehicle

Abstract

The present invention provides a power battery pack and a vehicle. The power battery pack includes a locking mechanism, and the locking mechanism includes a housing and a locking block. The locking block is embedded in the housing and is movably connected to the housing. A locking space is formed between the housing and the locking block. The locking space is used to cooperate with an external locking member to lock or unlock the power battery pack. The locking block moves relative to the housing so that the locking member is inserted into or disengaged from the locking space. When the locking member is inserted into the locking space, the power battery pack is locked. When the locking member is disengaged from the locking space, the power battery pack is unlocked. In the power battery pack of the present invention, a locking space is formed between the housing and the locking block. By using the relative movement between the housing and the locking block, the locking member is inserted into or disengaged from the locking space, thereby realizing the locking and unlocking of the power battery pack, simplifying the disassembly and assembly method of the power battery pack, and facilitating personnel to quickly and easily disassemble and assemble the power battery pack.

Description

Technical Field

[0001] The present invention relates to the technical field of power battery pack installation, and particularly relates to a power battery pack and a vehicle. Background Art

[0002] With the strengthening of the concept of "green travel and environmental protection travel", the vehicle industry pays more and more attention to the development of electric vehicles with zero carbon emissions. For electric vehicles, the power battery pack is an important factor affecting the performance of electric vehicles. When the power of the power battery pack is almost exhausted, it is necessary to charge the power battery pack in time or directly replace the battery pack to ensure the normal driving of the vehicle.

[0003] Currently, a locking device is usually used to install the power battery pack on the vehicle. However, the locking device needs to be disassembled and assembled step by step with the help of disassembly and assembly tools, and the disassembly and assembly process is extremely inconvenient, causing trouble for the rapid replacement of the power battery pack. Summary of the Invention

[0004] In view of this, the present invention aims to provide a power battery pack and a vehicle to solve the problem of inconvenient disassembly and assembly of the existing power battery pack.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] A power battery pack, the power battery pack includes a locking mechanism, and the locking mechanism includes a housing and a locking block;

[0007] The locking block is embedded in the housing and is movably connected to the housing. A locking space is formed between the housing and the locking block, and the locking space is used to cooperate with an external locking member to lock or unlock the power battery pack;

[0008] The locking block moves relative to the housing so that the locking member is inserted into or disengaged from the locking space;

[0009] When the locking member is inserted into the locking space, the power battery pack is locked; when the locking member is disengaged from the locking space, the power battery pack is unlocked.

[0010] Further, the locking mechanism further includes an elastic member, one end of the elastic member is fixedly connected to the housing, and the other end is fixedly connected to the locking block.

[0011] Further, the locking mechanism further includes a first magnetic member and a second magnetic member;

[0012] The first magnetic member and the second magnetic member are arranged opposite to each other. Among them, the first magnetic member is fixedly connected to the housing, the second magnetic member is fixedly connected to the lock block, and the magnetic poles on the sides of the first magnetic member and the second magnetic member close to each other are the same.

[0013] Further, the elastic member is a spring. A positioning post is provided on the surface of the lock block, and the spring is sleeved on the positioning post.

[0014] Further, the lock block includes a main body portion and a locking portion;

[0015] Along the direction in which the lock block moves relative to the housing, the projection of the locking portion is located within the locking space, and the locking portion is used to cooperate with the locking member for locking.

[0016] Further, a chamfer is provided at the end of the locking portion close to the locking member.

[0017] Further, during the movement of the lock block relative to the housing, the outer wall of the main body portion slides along the inner wall of the housing.

[0018] Further, there are multiple locking mechanisms, and the multiple locking mechanisms are evenly arranged along the edge of the power battery pack.

[0019] Another object of the present invention is to provide a vehicle, including a vehicle frame, a locking member, and the power battery pack described in any one of the foregoing items;

[0020] The locking member is elastically connected to the vehicle frame. The vehicle frame is provided with a battery compartment, and the power battery pack is embedded in the battery compartment;

[0021] The locking member is used to be inserted into or disengaged from the locking space to lock and fix the power battery pack in the battery compartment or disassemble it from the battery compartment.

[0022] Further, a guiding groove communicating with the locking space is provided on the side wall of the battery compartment, and the locking member is inserted into or disengaged from the locking space along the guiding groove.

[0023] Compared with the prior art, the power battery pack and the vehicle of the present invention have the following advantages:

[0024] For the power battery pack in the embodiment of the present invention, a locking space is formed between the housing and the lock block. By using the relative movement between the housing and the lock block, the locking member is inserted into or disengaged from the locking space, so that the locking and unlocking of the power battery pack can be realized, which simplifies the disassembly and assembly method of the power battery pack and facilitates personnel to quickly and easily disassemble and assemble the power battery pack.

[0025] The vehicle and the above-mentioned power battery pack have the same advantages as those of the prior art, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0027] Figure 1 is a schematic diagram of the locking mechanism according to an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the locking block according to an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the power battery pack in a locked state according to an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of the power battery pack in an unlocked state according to an embodiment of the present invention;

[0031] Figure 5 is a distribution diagram of the locking mechanism on the power battery pack according to an embodiment of the present invention.

[0032] Description of the reference numerals:

[0033] 1 - housing, 2 - locking block, 3 - locking space, 4 - locking member, 5 - elastic member, 6 - positioning post, 21 - main body portion, 22 - locking portion, 23 - chamfer, 7 - battery compartment, 71 - guiding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] The terms "first", "second", etc. in the specification and claims of the present invention are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0036] It should be understood that the "one embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present invention. Therefore, the "in one embodiment" that appears throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] Referring to Figures 1 to 4 , the power battery pack includes a locking mechanism, and the locking mechanism includes a housing 1 and a locking block 2; the locking block 2 is embedded in the housing 1 and is movably connected to the housing 1. A locking space 3 is formed between the housing 1 and the locking block 2, and the locking space 3 is used to cooperate with an external locking member 4 to lock or unlock the power battery pack; the locking block 2 moves relative to the housing 1 so that the locking member 4 is engaged with or disengaged from the locking space 3; when the locking member 4 is engaged with the locking space 3, the power battery pack is locked; when the locking member 4 is disengaged from the locking space 3, the power battery pack is unlocked.

[0039] Specifically, the power battery pack is the power source of an electric vehicle, equivalent to the heart of an electric vehicle. Therefore, in the field of electric vehicles, the performance requirements and assembly requirements for the power battery pack are extremely strict. During the driving of an electric vehicle, when the power of the power battery pack is almost exhausted, it is necessary to charge it in time or directly replace the battery pack to ensure that the electric vehicle can continue to drive. However, during the installation and disassembly of the current power battery pack, it is necessary to use disassembly and assembly tools to operate the locking device on the power battery pack step by step, and the disassembly and assembly process is extremely inconvenient. When the driver forgets to place the disassembly and assembly tools in the vehicle, the power battery pack cannot be replaced in time, which may cause the driver to be trapped on the journey and seriously affect the driving experience of the electric vehicle. Based on this, the embodiment of the present invention provides a power battery pack, including a locking mechanism, and the locking mechanism includes a housing 1 and a locking block 2, as Figure 1 shown, the housing 1 is a part of the structure on the battery pack housing, and the housing 1 has a hollow cavity inside. The locking block 2 is embedded in the hollow cavity inside the housing 1 and is movably connected to the housing 1. As Figure 2 shown, when the locking block 2 is embedded in the housing 1, a part of the structure of the locking block 2 extends out of the housing 1. A locking space 3 is formed between the housing 1 and the locking block 2, and the locking space 3 can cooperate with the locking member 4 on the external vehicle frame to lock or unlock the power battery pack. After locking, the installation of the power battery pack can be realized, and after unlocking, the disassembly of the power battery pack can be realized, greatly simplifying the disassembly and assembly process of the power battery pack.

[0040] The specific implementation process is as follows. Figure 3 As shown, when the power battery pack needs to be installed on an electric vehicle, the lifting mechanism is used to push the housing 1, so that a relative movement is generated between the housing 1 and the locking block 2. During the process, the locking member 4 is snapped into the locking space 3, and then the power battery pack can be locked and fixed on the electric vehicle. As Figure 4 shown, when the power battery pack needs to be removed from the electric vehicle, the locking block 2 inside the housing 1 is pushed by the lifting mechanism, so that a relative movement is generated between the locking block 2 and the housing 1. During the process, the locking block 2 presses the locking member 4, causing the locking member 4 to disengage from the locking space 3, and then the power battery pack can be removed from the electric vehicle. In this embodiment, the direction of the relative movement between the housing 1 and the locking block 2 is inclined to the direction in which the locking member 4 snaps into or disengages from the locking space 3, so as to ensure that the locking member 4 can be smoothly snapped into the locking space 3.

[0041] In the power battery pack of the embodiment of the present invention, a locking space 3 is formed between the housing 1 and the locking block 2. By using the relative movement between the housing 1 and the locking block 2, the locking member 4 is snapped into or disengaged from the locking space 3, and then the locking and unlocking of the power battery pack can be realized, which simplifies the disassembly and assembly method of the power battery pack and is convenient for personnel to quickly and easily disassemble and assemble the power battery pack.

[0042] Furthermore, referring to Figure 3 and Figure 4 , the locking mechanism further includes an elastic member 5. One end of the elastic member 5 is fixedly connected to the housing 1, and the other end is fixedly connected to the locking block 2.

[0043] Specifically, in one implementation, the locking mechanism further includes an elastic member 5. The elastic member 5 can be made of any one or more elastic materials such as elastic alloy, rubber, sponge, silica gel, etc. One end of the elastic member 5 is fixedly connected to the battery pack housing 1, and the other end is fixedly connected to the locking block 2 inside the housing 1. During the process of the lifting mechanism pushing the housing 1 to move, the elastic member 5 between the housing 1 and the locking block 2 is stretched, and the locking member 4 is accordingly snapped into the locking space 3. When the lifting mechanism is withdrawn, the elastic force of the elastic member 5 recovering from deformation drives the housing 1 to approach the locking block 2, thereby clamping the locking member 4 in the locking space 3 and realizing the locking of the power battery pack. During the process of the lifting mechanism pushing the locking block 2 to move, the elastic member 5 between the housing 1 and the locking block 2 is compressed. Until the locking block 2 presses the locking member 4 to disengage from the locking space 3, the locking block 2 rebounds to the initial position under the action of the elastic member 5, which is convenient for the next locking. In this embodiment, the setting of the elastic member 5 can not only effectively snap the locking member 4 in the locking space 3 to realize the effective locking of the power battery pack, but also make the locking block 2 return to the original position in the unlocked state, which helps to perform the next locking.

[0044] Further, the locking mechanism further includes a first magnetic member and a second magnetic member; the first magnetic member and the second magnetic member are arranged opposite to each other, wherein the first magnetic member is fixedly connected to the housing 1, the second magnetic member is fixedly connected to the locking block 2, and the magnetic poles on the sides of the first magnetic member and the second magnetic member close to each other are the same.

[0045] Specifically, in another embodiment, the locking mechanism further includes a first magnetic member and a second magnetic member. The first magnetic member and the second magnetic member are arranged opposite to each other between the housing 1 and the locking block 2. Among them, the first magnetic member is fixedly connected to the housing 1, and the second magnetic member is fixedly connected to the locking block 2. The magnetic poles on the sides of the first magnetic member and the second magnetic member close to each other are the same. If the side of the first magnetic member close to the second magnetic member is the S pole, then the side of the second magnetic member close to the first magnetic member is also the S pole. If the side of the first magnetic member close to the second magnetic member is the N pole, then the side of the second magnetic member close to the first magnetic member is also the N pole. Thus, the magnetic forces of the first magnetic member and the second magnetic member repel each other. When the jacking mechanism pushes the locking block 2 to make the locking block 2 squeeze the locking member 4 out of the locking space 3, the locking block 2 can continue to return to the initial position under the action of the magnetic repulsive force between the first magnetic member and the second magnetic member, so as to facilitate the next locking. In this embodiment, the structures of the first magnetic member and the second magnetic member are simple, which is convenient for assembling with the housing 1 or the locking block 2, and can effectively save the processing time of the power battery pack.

[0046] Further, referring to Figure 3 and Figure 4 , the elastic member 5 is a spring, and a positioning post 6 is arranged on the surface of the locking block 2, and the spring is sleeved on the positioning post 6.

[0047] Specifically, the elastic member 5 between the housing 1 and the locking block 2 is a spring. A positioning post 6 is arranged on the surface of the locking block 2 close to the spring. One end of the spring is sleeved on the positioning post 6, and the other end is fixedly connected to the housing 1. The positioning post 6 can prevent the spring from slipping relative to the surface of the locking block 2 and improve the reliability of the spring connection.

[0048] Further, referring to Figure 2 、 Figure 3 and Figure 4 , the locking block 2 includes a main body portion 21 and a locking portion 22; along the direction in which the locking block 2 moves relative to the housing 1, the projection of the locking portion 22 is located in the locking space 3, and the locking portion 22 is used for cooperating with the locking member 4 for locking.

[0049] Specifically, as Figure 2As shown, the locking block 2 includes a main body portion 21 and a locking portion 22. The main body portion 21 and the locking portion 22 can be separately and independently processed and formed, and then the locking block 2 is formed through an assembly process. The main body portion 21 and the locking portion 22 can also be integrally processed and formed through an injection molding process or the like. The locking portion 22 protrudes relative to the surface of the main body portion 21. Along the direction in which the locking block 2 moves relative to the housing 1, the projection of the locking portion 22 is located within the locking space 3. As Figure 3 and Figure 4 shown, after the locking member 4 is snapped into the locking space 3, the surface of the locking portion 22 can abut against the surface of the locking member 4 to further improve the reliability of locking. During the process of the locking member 4 disengaging from the locking space 3, the locking portion 22 can squeeze the locking member 4 until the locking member 4 completely disengages from the locking space 3.

[0050] Furthermore, referring to Figure 2 , a chamfer 23 is provided at the end of the locking portion 22 close to the locking member 4.

[0051] Specifically, a chamfer 23 is provided at the end of the locking portion 22 close to the locking member 4. The chamfer 23 surface can be a flat surface or a curved surface. The existence of the chamfer 23 can reduce the probability of hard knocking during the process of the locking member 4 being snapped into the locking space 3, avoid damage to the locking member 4, and help the locking member 4 to be smoothly snapped into the locking space 3. Preferably, a chamfer can also be provided at the end of the locking member 4 close to the locking portion 22. The existence of the two chamfers is more helpful for the locking member 4 to be snapped into the locking space 3.

[0052] Furthermore, referring to Figure 3 and Figure 4 , during the process of the locking block 2 moving relative to the housing 1, the outer wall of the main body portion 21 slides along the inner wall of the housing 1.

[0053] Specifically, along the direction perpendicular to the movement of the locking block 2 relative to the housing 1, the size of the inner wall of the cavity of the housing 1 is slightly larger than the size of the main body portion 21 of the locking block 2. Thus, during the process of the locking block 2 moving relative to the housing 1, the outer wall of the main body portion 21 can slide along the inner wall of the cavity in the housing 1, enabling the locking block 2 to continuously move relative to the housing 1 in one direction, avoiding deviation during the sliding of the locking block 2, preventing the locking block 2 from being stuck with the housing 1, and thus helping to smoothly achieve the locking and unlocking of the power battery pack.

[0054] Furthermore, referring to Figure 5 , there are multiple locking mechanisms, and the multiple locking mechanisms are uniformly arranged along the edge of the power battery pack.

[0055] Specifically, due to the relatively large size specification of the power battery pack, the number of locking mechanisms can also be multiple. The multiple locking mechanisms are uniformly arranged along the edge of the power battery pack, as Figure 5As shown, six locking mechanisms are respectively arranged at the edges of opposite sides of the battery pack, with a total of twelve locking mechanisms, to lock and fix the battery pack, so that each part of the battery pack is evenly locked, thereby improving the reliability of the battery pack after locking, and avoiding the phenomenon that the battery pack shakes during the driving of the electric vehicle, resulting in the battery pack finally becoming loose or even falling off.

[0056] An embodiment of the present invention further provides a vehicle, which includes a vehicle frame, a locking member, and the power battery pack described in any one of the foregoing; the locking member is elastically connected to the vehicle frame, the vehicle frame is provided with a battery compartment 7, and the power battery pack is embedded in the battery compartment 7; the locking member is used to engage with or disengage from the locking space 3 to lock and fix the power battery pack in the battery compartment 7 or disassemble it from the battery compartment 7.

[0057] Specifically, the vehicle in this embodiment includes a vehicle frame, a locking member, and the power battery pack described in any one of the foregoing. The vehicle frame forms the white body of the vehicle, and the locking member is elastically connected to the vehicle frame. In one implementation manner, a spring can also be used to elastically connect the locking member and the vehicle frame. A battery compartment 7 is arranged inside the vehicle frame, and a locking groove for installing the locking mechanism is arranged in the battery compartment 7. The locking mechanism is embedded in the locking groove and can only move within the locking groove. When the locking member engages with the locking space 3, the locking mechanism can be locked and fixed inside the battery compartment 7 to realize the installation of the power battery pack. When the locking member disengages from the locking space 3, the locking mechanism can be disassembled from the battery compartment 7 to realize the disassembly of the power battery pack. The vehicle in this embodiment can quickly install the power battery pack on the vehicle frame or disassemble it from the vehicle frame through the cooperation between the locking member and the locking space 3 in the power battery pack. The disassembly and assembly method is simple and convenient, improving the driving experience of the vehicle.

[0058] Further, referring to Figure 3 and Figure 4 , a guiding groove 71 communicating with the locking space 3 is formed in the side wall of the battery compartment 7, and the locking member engages with or disengages from the locking space 3 along the guiding groove 71.

[0059] Specifically, a guiding groove 71 communicating with the locking space 3 is formed in the side wall of the locking groove for installing the locking mechanism in the battery compartment 7. The guiding groove 71 can define the direction for the locking member to engage with or disengage from the locking space 3, so that the locking member moves along the guiding groove 71, avoiding the deviation of the locking member during the movement process, ensuring that the locking member accurately and smoothly engages with the locking space 3, and thus improving the reliability of the locking process of the power battery pack.

[0060] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or terminal device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A power battery pack, characterized in that, The power battery pack includes a locking mechanism, and the locking mechanism includes a housing and a locking block; The locking block is embedded in the housing and is movably connected to the housing. A locking space is formed between the housing and the locking block, and the locking space is used to cooperate with an external locking member to lock or unlock the power battery pack; The locking block moves relative to the housing to enable the locking member to be inserted into or disengaged from the locking space, including: by pushing the housing to cause relative movement between the housing and the locking block, so that the locking member is inserted into the locking space; by pushing the locking block to cause relative movement between the locking block and the housing, so that the locking member is disengaged from the locking space; When the locking member is inserted into the locking space, the power battery pack is locked; when the locking member is disengaged from the locking space, the power battery pack is unlocked.

2. The power battery pack according to claim 1, wherein, The locking mechanism further includes an elastic member, one end of the elastic member is fixedly connected to the housing, and the other end is fixedly connected to the locking block.

3. The power battery pack according to claim 1, wherein, The locking mechanism further includes a first magnetic member and a second magnetic member; The first magnetic member and the second magnetic member are arranged opposite to each other. Among them, the first magnetic member is fixedly connected to the housing, the second magnetic member is fixedly connected to the locking block, and the magnetic poles of the sides of the first magnetic member and the second magnetic member close to each other are the same.

4. The power battery pack according to claim 2, wherein The elastic member is a spring, and a positioning post is arranged on the surface of the locking block, and the spring is sleeved on the positioning post.

5. The power battery pack according to claim 1, characterized in that, The locking block includes a main body portion and a locking portion; Along the direction in which the locking block moves relative to the housing, the projection of the locking portion is located in the locking space, and the locking portion is used to cooperate with the locking member for locking.

6. The power battery pack according to claim 5, characterized in that, A chamfer is arranged at the end of the locking portion close to the locking member.

7. The power battery pack according to claim 5, characterized in that During the movement of the locking block relative to the housing, the outer wall of the main body portion slides along the inner wall of the housing.

8. The power battery pack according to claim 1, wherein There are multiple locking mechanisms, and the multiple locking mechanisms are evenly arranged along the edge of the power battery pack.

9. A vehicle, characterized in that, It includes a vehicle frame, a locking member, and the power battery pack according to any one of claims 1 to 8; The locking member is elastically connected to the vehicle frame, the vehicle frame is provided with a battery compartment, and the power battery pack is embedded in the battery compartment; The locking member is used to be inserted into or disengaged from the locking space to lock and fix the power battery pack in the battery compartment or disassemble it from the battery compartment.

10. The vehicle according to claim 9, characterized in that, A guiding groove communicating with the locking space is formed on the side wall of the battery compartment, and the locking member is inserted into or disengaged from the locking space along the guiding groove.

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