Lock body assembly, power battery for vehicle, battery locking mechanism and vehicle

Abstract

The utility model provides a lock body assembly, a power battery for a vehicle, a battery locking mechanism and the vehicle. The lock body assembly is used for a battery locking mechanism of a power battery of a vehicle, the battery locking mechanism comprises the lock body assembly and a fixing assembly used for being connected to a vehicle body, and the lock body assembly comprises a sleeve, a locking part, a locking part, a locking part and a locking part, and the sleeve is in a cylindrical shape with an open bottom end, a through hole is formed in the top end and a limiting part is constructed on the inner side wall; at least part of the threaded fastener is arranged in the sleeve, the threaded fastener is provided with a first matching part and an external thread section extending out of the through hole, and an external thread of the external thread section can be connected to the fixing assembly so as to limit the axial relative movement of the lock body assembly and the fixing assembly; the adjusting block is at least partially arranged in the sleeve and is provided with a second matching part, and the first matching part and the second matching part are jointed and limit the circumferential relative rotation of the threaded fastener and the adjusting block; the limiting plate is arranged in the sleeve, the movement of the adjusting block towards the fixing assembly is limited by the limiting part, and the movement of the adjusting block away from the fixing assembly is limited by the limiting plate.

Description

Technical Field

[0001] The utility model relates to the field of battery locks for vehicle power batteries, and in particular to a lock body assembly, a power battery for a vehicle, a battery locking mechanism and a vehicle. Background Art

[0002] This section is intended to provide background information relevant to understanding the various technologies described herein. As implied by the title of this section, this is a discussion of related technologies that should not in any way imply that they are necessarily prior art. Therefore, it should be understood that any statement in this section should be read from this perspective, rather than any admission of prior art.

[0003] Vehicles, such as battery-swap new energy vehicles, have become a research hotspot today due to their quick energy replenishment and grid-friendliness.

[0004] As a non-limiting example, a power battery of a battery-swap new energy vehicle is fixed to the vehicle body (e.g., chassis) through a battery locking mechanism. Since the circumferential anti-loosening and locking technology of the threaded locking mechanism adopts tooth grooves, key grooves, pin grooves, pin hole connections, and shape matching, the size in the thickness direction is often large, and the thickness of the battery locking mechanism directly affects the height of the chassis of the vehicle body and the height and comfort of the bottom space in the vehicle. Utility Model Content

[0005] The utility model aims to achieve locking of a vehicle power battery in a cost-effective manner with low cost and a small number of parts.

[0006] In addition, the utility model is also intended to solve or alleviate other technical problems existing in the prior art.

[0007] The utility model solves the above problems by providing a lock body assembly, a power battery for a vehicle, a battery locking mechanism and a vehicle. Specifically, according to one aspect of the utility model, the following are provided:

[0008] A lock body assembly, used for a battery locking mechanism of a power battery of a vehicle, wherein the battery locking mechanism comprises the lock body assembly and a fixing assembly for connecting to a vehicle body, and the lock body assembly comprises:

[0009] A sleeve, wherein the sleeve is in a cylindrical shape with an open bottom end, a through hole is provided at the top end of the sleeve, and a limiting portion is configured on the inner side wall of the sleeve;

[0010] a threaded fastener, which is at least partially arranged in the sleeve, the threaded fastener having an external thread segment and a first mating portion, the external thread segment extending through the through hole so that the external thread of the external thread segment can be engaged with the fixing assembly to limit the axial relative movement of the lock body assembly and the fixing assembly;

[0011] an adjusting block, which is at least partially arranged in the sleeve, the adjusting block is configured with a second matching portion, the first matching portion is engaged with the second matching portion and limits the circumferential relative rotation of the threaded fastener and the adjusting block;

[0012] A limiting plate is arranged in the sleeve, and the movement of the adjusting block toward the fixing assembly is limited by the limiting portion, and the movement of the adjusting block away from the fixing assembly is limited by the limiting plate.

[0013] Optionally, according to an embodiment of the utility model, the lock body assembly also includes a spring, which is sleeved on the threaded fastener and arranged axially between the inner top wall of the sleeve and the adjustment block, and is used to apply spring force to the adjustment block in the direction of the limit plate.

[0014] Optionally, according to an embodiment of the utility model, the adjustment block includes a main body and a protrusion extending from the main body, the main body and the protrusion form an axial opening of the adjustment block, and the second matching portion is constructed on the inner wall of the axial opening.

[0015] Optionally, according to an embodiment of the present utility model, the outer periphery of the protrusion is configured with a third matching portion for operating the adjustment block, and the protrusion extends out of the sleeve.

[0016] Optionally, according to an embodiment of the present utility model, the threaded fastener further has a flange, the flange is constructed between the external thread section and the first matching portion, and the flange is confined in the sleeve.

[0017] Optionally, according to an embodiment of the utility model, the lock body assembly also includes a double-stacked self-locking washer, which is arranged between the inner top wall of the sleeve and the flange and supported by the flange, and the double-stacked self-locking washer includes a first washer and a second washer, the first washer and the second washer are configured with wedge-shaped teeth meshing with each other, and the end face of the double-stacked self-locking washer facing the inner top wall of the sleeve and the end face facing the flange are both configured with radial teeth.

[0018] Optionally, according to an embodiment of the present utility model, the lock body assembly further comprises a spring seat, wherein the spring seat is arranged between the spring and the adjustment block, and the spring seat supports the spring.

[0019] According to another aspect of the utility model, a power battery for a vehicle is provided, wherein any of the above-mentioned lock body assemblies is arranged on a battery housing of the power battery.

[0020] According to another aspect of the utility model, a battery locking mechanism is provided, wherein the battery locking mechanism comprises any one of the above-mentioned lock body components and the fixing component.

[0021] Optionally, according to an embodiment of the utility model, the fixing assembly includes a locking plate and a fixing frame, the locking plate is connected to the fixing frame, the fixing frame is used to be assembled to a vehicle body, the locking plate is configured with an internal thread, and the external thread of the external thread section is used to cooperate with the internal thread thread.

[0022] According to another aspect of the utility model, a vehicle is provided, wherein the vehicle comprises a power battery and any one of the above-mentioned battery locking mechanisms, and the power battery is loaded and unloaded through the battery locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features of the present invention will become apparent with reference to the accompanying drawings, in which:

[0024] Figure 1 A schematic structural diagram of a battery locking mechanism according to the utility model is shown;

[0025] Figure 2 A schematic structural diagram of another battery locking mechanism according to the utility model is shown;

[0026] Figure 3 An exploded view of a lock body assembly according to the utility model is shown;

[0027] Figure 4 A cross-sectional view of a battery locking mechanism according to the utility model is shown;

[0028] Figure 5 A three-dimensional diagram of a lock body assembly according to the utility model is shown; and

[0029] Figure 6 A stereoscopic view of a fixing assembly according to the utility model is shown. DETAILED DESCRIPTION

[0030] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0031] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms. In addition, the terms "first", "second", "third", etc. or similar expressions are only used for description and distinction purposes, and cannot be understood as indicating or implying the relative importance of the corresponding components.

[0032] refer to Figures 1 to 5 ,in, Figure 1 A schematic structural diagram of a battery locking mechanism according to the utility model is shown; Figure 2 A schematic structural diagram of another battery locking mechanism according to the utility model is shown; Figure 3 An exploded view of a lock body assembly according to the utility model is shown; Figure 4 A cross-sectional view showing a battery locking mechanism according to the utility model; and Figure 5 A stereoscopic view of a lock body assembly according to the utility model is shown.

[0033] The lock body assembly 1 is used for a battery locking mechanism 100 of a power battery of a vehicle, wherein the battery locking mechanism 100 comprises the lock body assembly 1 and a fixing assembly 2 for connecting to a vehicle body, and the lock body assembly 1 comprises:

[0034] The sleeve 11 is in a cylindrical shape with an open bottom end, a through hole 111 is formed at the top of the sleeve 11, and a limiting portion 112 is formed on the inner side wall of the sleeve 11;

[0035] a threaded fastener 12, which is at least partially arranged in the sleeve 11, and has an external thread segment 121 and a first matching portion 122, wherein the external thread segment 121 extends through the through hole 111, so that the external thread of the external thread segment 121 can be engaged with the fixing assembly 2 to limit the axial relative movement of the lock body assembly 1 and the fixing assembly 2;

[0036] an adjusting block 13, which is at least partially arranged in the sleeve 11, and the adjusting block 13 is configured with a second matching portion 131, the first matching portion 122 is engaged with the second matching portion 131 and limits the circumferential relative rotation of the threaded fastener 12 and the adjusting block 13;

[0037] The limiting plate 14 is arranged in the sleeve 11 . The movement of the adjusting block 13 toward the fixing assembly 2 is limited by the limiting portion 112 , and the movement of the adjusting block 13 away from the fixing assembly 2 is limited by the limiting plate 14 .

[0038] It should be understood that the lock assembly or battery locking mechanism can be used to fix the power battery of the vehicle to the fixing assembly of the vehicle body, and can also be used to unlock the power battery at the fixing assembly of the vehicle body. Figure 1 Taking the perspective of as an example, the bottom end of the sleeve is the lower end, or the end away from the fixed assembly, and the top end of the sleeve is the upper end, or the end facing the fixed assembly. Here, a accommodating space is formed inside the sleeve for protecting and assembling the parts inside it. The cylindrical shape can be understood as a square body or a cylindrical body, including a cylindrical body, which is hollow inside. In this regard, the limit plate, adjustment block, spring seat, threaded fastener, double-stacked self-locking washer, spring and other parts in this example can be constructed into a rotating body to obtain a smoother, stable and convenient locking and unlocking function. Threaded fasteners generally refer to parts with threads for fastening and fixing, such as bolts, screws, etc. When the external thread section of the threaded fastener is engaged with the fixed assembly, the threaded fit of the two is achieved, thereby fixing the lock body assembly and the fixed assembly, thereby achieving the fixation of the power battery relative to the vehicle body. It can also be understood that during the locking and unlocking process, due to the relationship of this threaded fit, the threaded fastener can move up or down in the through hole. The threaded fastening connection is a detachable fixed connection with the advantages of simple structure, reliable connection, and easy assembly and disassembly.

[0039] The technical solution adopts an adjustment block, which is engaged with the first matching part of the threaded fastener through the second matching part, and this engagement limits the circumferential relative rotation of the two. In other words, there is no relative rotation between the adjustment block and the threaded fastener, and the two rotate together. Combined with the previous explanation of thread matching, it can be understood that in the process of the adjustment block rotating together with the threaded fastener, the threaded fastener can also move up or down during this period through thread matching to achieve locking and unlocking. Therefore, the adjustment block can be regarded as a driving element, and the force can be applied to the adjustment block by the user or a special locking and unlocking tool. The adjustment block drives the threaded fastener to rotate, and the threaded fastener rises or falls at the same time to achieve the loading and unloading of the power battery. Through the design of the adjustment block, the noise caused by the threaded fastener idling against the locking plate of the fixed component after the power battery is unlocked can also be reduced. This is because during the unlocking process, after the external thread of the threaded fastener is completely separated from the internal thread of the locking plate of the fixed component, the locking and unlocking tool located below the locking mechanism still has an upward force on the threaded fastener, causing the threaded fastener to idly rotate against the locking plate of the fixed component. As a result, the adjusting block can distribute or bear the force of the locking and unlocking tool below on the threaded fastener, thereby achieving the above-mentioned noise reduction effect.

[0040] Exemplarily, the first mating portion and the second mating portion are keyway mating. For example, the first mating portion adopts a straight spline meshing section, and the second mating portion adopts a straight spline groove, which can transmit circumferential force and can move axially up and down. The advantages of straight spline mating include good torque transmission performance, good positioning performance, good sealing and easy disassembly. Here, the keyway and the meshing section are each evenly distributed on the periphery of the adjustment block or the threaded fastener, so as to obtain a more stable and comprehensive transmission effect. Although the present disclosure does not explain in detail, the meshing method of the threaded fastener and the adjustment block can be changed to other methods such as sliding buckles, which can also be applicable.

[0041] In the present technical solution, the position of the adjustment block is limited by the design of the limit plate and the limit part, so that the space for its axial movement is limited. As a result, during the process, the adjustment block can or basically can be fixed in position, and mainly or only rotates in place, which is sufficient to support the rise or fall of the threaded fastener. As a result, the present disclosure only uses a small number of parts, is low-cost and simple to assemble, and realizes the loading and unloading of the power battery in a cost-effective manner. Here, the limit part is formed by the inner side wall of the sleeve. Specifically, the inner side wall of the sleeve is configured with a recessed portion, whereby the recessed portion and the main part of the inner side wall form a step, the upper end face of the adjustment block is limited by the step, and the lower end face is limited by the limit plate. In addition, the limit plate and the sleeve can be assembled together, for example, by threaded connection, welding, clamping, etc.

[0042] Therefore, it can be considered to make the adjustment block, the limit plate and the sleeve made of wear-resistant plastic to increase the service life of the three, and the noise is lower and the movement resistance is lower. Therefore, the gap between the adjustment block and the limit plate and the limit part can be made smaller, making the entire lock body assembly more compact. The smaller gap also helps to suppress noise during the operation of the lock body assembly or during driving. In addition, since the adjustment block rotates in place and does not move up and down, the axial interaction force between the threaded fastener and the locking plate of the fixed assembly is very small, making the overall axial height lower, and it is not easy to damage the threads of the locking plate and the threaded fastener, reducing wear.

[0043] In some embodiments of the present disclosure, the lock body assembly 1 also includes a spring 15, which is sleeved on the threaded fastener 12 and arranged axially between the inner top wall of the sleeve 11 and the adjustment block 13, and is used to apply spring force to the adjustment block 13 in the direction of the limit plate 14.

[0044] It can be seen that, through the design of the spring, a spring force can be applied to the adjustment block in the direction of the limit plate. On the one hand, this can make the position of the adjustment block more stable during operation, and can also prevent the adjustment block from vibrating up and down and making noise by pushing it down to fit the limit plate during driving; on the other hand, it can also alleviate or offset the spring force of the locking and unlocking tool pushing the adjustment block upward during operation, thereby reducing friction and wear at the limit portion. Those skilled in the art should know that, for example, the spring stiffness coefficient and the expected spring force can be adjusted by designing the material, size, shape, etc. of the spring. Depending on factors such as actual usage requirements and cost budget, the spring can also be cancelled, which is more flexible.

[0045] Thus, for example, it is also possible to Figures 3 to 5 It can be seen that the lock body assembly 1 further includes a spring seat 17 , which is arranged between the spring 15 and the adjustment block 13 , and supports the spring 15 .

[0046] The spring seat can be configured, for example, as a hollow ring with an annular end face for abutting against the spring. The annular side wall is used to limit the position of the spring so as to maintain the stability of the position of the spring during operation or driving. The position design of the spring seat can play the role of isolating the spring from the sleeve circumferentially, and isolating the spring from the adjustment block axially. It will slide with the upper surface of the adjustment block during the rotation of the adjustment block. In addition, the spring seat can also be used to reduce the wear of the adjustment block and the spring, as well as the noise generated during operation or driving. Depending on factors such as actual usage requirements and cost budget, the spring seat can also be cancelled, which is more flexible.

[0047] Regarding the specific structural design of the adjustment block, exemplarily, the adjustment block 13 includes a main body 132 and a protrusion 133 extending from the main body 132, the main body 132 and the protrusion 133 form an axial opening of the adjustment block 13, and the second matching portion 131 is constructed on the inner wall of the axial opening. Thus, the axial position of the external body of the adjustment block is limited by the limit plate and the limit portion, while the protrusion of the adjustment block and the internal body are used to cooperate with the threaded fastener, such as the keyway. Here, the protrusion extends downward. In the locked state, the threaded fastener can be located within the axial opening, for example, and in the unlocked state, the tail end of the threaded fastener can extend downward from the axial opening. This two-part structural design of the adjustment block can better cooperate with the surrounding parts to achieve their respective technical functions.

[0048] In order to facilitate the operation of the adjustment block, in some embodiments of the present disclosure, the outer periphery of the protrusion 133 is configured with a third matching portion 134 for operating the adjustment block 13, and the protrusion 133 extends out of the sleeve 11. The third matching portion can be exemplarily configured as a straight spline for tightening and transmitting circumferential force. The arrangement of the protrusion outside the sleeve (including a technical solution in which a part of the protrusion is located outside the sleeve) can also facilitate the user or the locking and unlocking tool to access the adjustment block. Here, the third matching portion is configured on the outer periphery of the protrusion of the adjustment block. It can be understood that the shape characteristics of the third matching portion can be adaptively adjusted depending on the user's habits or the corresponding matching structural characteristics of the locking and unlocking tool.

[0049] In addition, the present disclosure also optimizes the design of circumferential anti-loosening and thickness control. Specifically, the threaded fastener 12 also has a flange 123, which is configured between the external thread section 121 and the first matching portion 122, and the flange 123 is confined in the sleeve 11. The lock body assembly 1 also includes a double-stacked self-locking washer 16, which is arranged between the inner top wall of the sleeve 11 and the flange 123 and supported by the flange 123, and the double-stacked self-locking washer 16 includes a first washer and a second washer, the first washer and the second washer are configured with wedge-shaped teeth meshing with each other, and the end surface of the double-stacked self-locking washer 16 facing the inner top wall of the sleeve 11 and the end surface facing the flange 123 are both configured with radial teeth.

[0050] The flange can be exemplarily configured into a disc shape, and the first matching portion is separated from the external thread section. The flange can also prevent the threaded fastener from falling from the through hole of the sleeve or the second matching portion of the adjusting block. The double-stacked self-locking washer is arranged on the flange. It can be seen that, taking locking as an example, the rotation of the adjusting block drives the rotation of the threaded fastener, and at the same time, the threaded fastener and the threaded matching of the fixing assembly realize that the threaded fastener also performs an upward movement during the rotation process. During the upward process, the flange of the threaded fastener rises with the double-stacked self-locking washer, and finally the double-stacked self-locking washer is pressed between the inner top wall of the sleeve and the upper surface of the flange. On the one hand, the wedge-shaped teeth of the double-stacked self-locking washer itself are tightly engaged, and on the other hand, the radial teeth on the two end faces of the washer can bite the inner top wall of the sleeve and the upper surface of the flange, thereby forming a clear embossing mark, realizing circumferential anti-loosening and circumferential locking, thereby preventing the threaded fastener from loosening under severe vibration or dynamic load conditions, and realizing self-locking at the same time. Radial teeth can also be understood as radial teeth.

[0051] As described in the background technology, the inventors recognize that a circumferential anti-loosening and locking technology of a locking mechanism often adopts the forms of tooth grooves, key grooves, pin grooves, pin hole connections and shape matching, and is located in the middle and lower part of the entire locking mechanism. The present technical solution can achieve the anti-loosening by placing a double-stacked self-locking washer above the flange of the central threaded fastener and utilizing the clamping force between it and the sleeve when it is locked. Therefore, since the present technical solution replaces the traditional tooth grooves, key grooves, pin grooves, pin hole connections and shape matching with the above-mentioned method, it can achieve the reduction of the overall thickness direction of the lock body assembly and the locking mechanism, and improve its compactness, and thereby enable the vehicle body to obtain more design space and improve ride comfort.

[0052] The present disclosure also relates to a power battery for a vehicle, wherein any of the above-mentioned lock body assemblies 1 is provided on the battery housing of the power battery. For example, the sleeve of the lock body assembly is connected to the housing of the power battery by welding. Therefore, various specific embodiments of the power battery of the present disclosure and the technical effects that can be achieved inherit the various explanations of the lock body assembly mentioned above. It can also be understood that a plurality of lock body assemblies can be provided on the housing of the power battery, and for example, evenly distributed, so as to obtain a more stable and comprehensive locking effect.

[0053] The present disclosure also relates to a battery locking mechanism 100, wherein the battery locking mechanism 100 comprises any of the above-mentioned lock body components 1 and the fixing component 2. Similarly, various implementations and technical effects of the battery locking mechanism can be interpreted with reference to the description of the lock body component, which will not be repeated here. It should be understood that the threaded fastener of the lock body component is used to engage with the fixing component.

[0054] Combination Figure 6 , which shows a stereoscopic view of a fixing assembly according to the utility model.

[0055] The fixing assembly 2 includes a locking plate 21 and a fixing frame 22, wherein the locking plate 21 is connected to the fixing frame 22, and the fixing frame 22 is used to be assembled to a vehicle body (such as a chassis). The locking plate 21 is configured with an internal thread 211, and the external thread of the external thread section 121 is used to threadably cooperate with the internal thread 211.

[0056] Specifically, the fixing frame is a bent body, and is fixed to the vehicle body by means of bolts or rivets through openings 221 opened therein, and four openings are shown in the figure as an example. The specific structural form of the fixing frame can be adaptively adjusted according to the shape of the part of the vehicle body to be matched. The locking plate is configured as a hollow cylindrical shape, and an internal thread is configured inside for threaded matching with a threaded fastener. Here, the locking plate is connected to the fixing frame by two bolts 23. For example, in the locked state, the threaded fastener can extend through the hollow hole of the locking plate to obtain a stable fixation.

[0057] It should be understood that the battery locking mechanism of the present utility model can be installed on various vehicles, including cars, trucks, buses, hybrid vehicles, pure electric vehicles, etc. Therefore, the subject matter of the present utility model is also intended to protect a vehicle, wherein the vehicle includes a power battery and any of the above-mentioned battery locking mechanisms 100, and the power battery is loaded and unloaded through the battery locking mechanism 100.

[0058] At this point, combined with the above description, those skilled in the art should understand how to apply the lock body assembly or locking structure of each technical solution of the present disclosure to lock and unlock the power battery. Here, for the sake of clarity and completeness, the following is a comprehensive introduction to the locking and unlocking of the power battery.

[0059] When the power battery is to be removed, a circumferential force is transmitted to the second mating part of the adjustment block (manually by the user or with a tool), and then transmitted to the threaded fastener with the first mating part through the second mating part of the adjustment block, causing it to rotate accordingly, and the external threaded section with the external thread withdraws from the internal thread of the locking plate of the fixed component on the vehicle body, and the threaded fastener moves axially downward as a whole in the second mating part of the adjustment block (the threaded fastener rotates and moves downward at the same time. The reason for the downward movement is that its external thread cooperates with the internal thread of the fixed component. During the downward movement of the threaded fastener, the position of the adjustment block remains unchanged, and only rotational movement is performed) until the external thread is completely disengaged from the internal thread of the locking plate, and the circumferential force on the adjustment block is withdrawn.

[0060] When the power battery is to be locked, the axial upward force is transmitted to the threaded fastener so that it can reach the locking plate of the fixed component on the vehicle body instead of falling and fitting with the adjustment block. The circumferential force is transmitted to the second matching part of the adjustment block, and then transmitted to the threaded fastener with the first matching part through the second matching part of the adjustment block, so that it rotates accordingly, and the external thread section with external thread gradually meshes with the internal thread of the locking plate of the fixed component on the vehicle body. The threaded fastener moves axially as a whole in the second matching part of the adjustment block until the flange of the threaded fastener and the upper inner wall of the sleeve begin to press the double-stacked self-locking washer, and the wedge-shaped teeth of the double-stacked self-locking washer are locked. At the same time, the radial fine teeth on the outer surface of the washer will bite the flange and the upper inner wall of the sleeve, forming a clear embossing mark to achieve circumferential anti-loosening. Then the upward force is withdrawn.

[0061] It should be understood that all the above preferred embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present invention should be within the legal protection scope of the present invention.

Claims

1. A lock assembly (1), used for a battery locking mechanism (100) of a power battery of a vehicle, characterized in that: The battery locking mechanism (100) comprises the lock body assembly (1) and a fixing assembly (2) for connecting to a vehicle body, wherein the lock body assembly (1) comprises: A sleeve (11), the sleeve (11) is in the shape of a cylinder with an open bottom end, a through hole (111) is provided at the top end of the sleeve (11), and a limiting portion (112) is structured on the inner side wall of the sleeve (11); a threaded fastener (12) at least partially arranged in the sleeve (11), the threaded fastener (12) comprising an external thread section (121) and a first mating portion (122), the external thread section (121) extending through the through hole (111) so that the external thread of the external thread section (121) can be engaged with the fixing assembly (2) to limit the axial relative movement of the lock body assembly (1) and the fixing assembly (2); an adjusting block (13) at least partially arranged in the sleeve (11), the adjusting block (13) being configured with a second matching portion (131), the first matching portion (122) being engaged with the second matching portion (131) and limiting the circumferential relative rotation of the threaded fastener (12) and the adjusting block (13); A limiting plate (14) is arranged in the sleeve (11); the movement of the adjusting block (13) toward the fixing assembly (2) is limited by the limiting portion (112); and the movement of the adjusting block (13) away from the fixing assembly (2) is limited by the limiting plate (14).

2. The lock assembly (1) according to claim 1, characterized in that: The lock body assembly (1) further comprises a spring (15), wherein the spring (15) is sleeved on the threaded fastener (12) and arranged axially between the inner top wall of the sleeve (11) and the adjustment block (13), and is used for applying a spring force to the adjustment block (13) in the direction of the limit plate (14).

3. The lock assembly (1) according to claim 1, characterized in that: The adjusting block (13) comprises a main body (132) and a protruding portion (133) extending from the main body (132); the main body (132) and the protruding portion (133) form an axial through opening of the adjusting block (13); and the second matching portion (131) is constructed on the inner wall of the axial through opening.

4. The lock assembly (1) according to claim 3, characterized in that: The outer periphery of the protrusion (133) is configured with a third matching portion (134) for operating the adjustment block (13), and the protrusion (133) extends out of the sleeve (11).

5. The lock assembly (1) according to claim 1, characterized in that: The threaded fastener (12) further comprises a flange (123), wherein the flange (123) is configured between the external thread section (121) and the first matching portion (122), and the flange (123) is confined within the sleeve (11).

6. The lock assembly (1) according to claim 5, characterized in that: The lock body assembly (1) also includes a double-stacked self-locking washer (16), which is arranged between the inner top wall of the sleeve (11) and the flange (123) and supported by the flange (123), and the double-stacked self-locking washer (16) includes a first washer and a second washer, the first washer and the second washer are configured with wedge-shaped teeth meshing with each other, and the end surface of the double-stacked self-locking washer (16) facing the inner top wall of the sleeve (11) and the end surface facing the flange (123) are both configured with radial teeth.

7. The lock assembly (1) according to claim 2, characterized in that: The lock body assembly (1) further comprises a spring seat (17), wherein the spring seat (17) is arranged between the spring (15) and the adjustment block (13), and the spring seat (17) supports the spring (15).

8. A power battery for a vehicle, characterized in that: A lock body assembly (1) according to any one of claims 1 to 7 is arranged on the battery housing of the power battery.

9. A battery locking mechanism (100), characterized in that: The battery locking mechanism (100) comprises a lock body assembly (1) according to any one of claims 1 to 7 and the fixing assembly (2).

10. The battery locking mechanism (100) according to claim 9, characterized in that: The fixing assembly (2) comprises a locking plate (21) and a fixing frame (22), wherein the locking plate (21) is connected to the fixing frame (22), and the fixing frame (22) is used to be assembled to a vehicle body, and the locking plate (21) is configured with an internal thread (211), and the external thread of the external thread section (121) is used to threadably cooperate with the internal thread (211).

11. A vehicle, characterized in that: The vehicle comprises a power battery and a battery locking mechanism (100) according to claim 9 or 10, and the power battery is loaded and unloaded via the battery locking mechanism (100).

Images