Battery swapping rotary lock mechanism

Abstract

The application discloses a battery replacement rotary locking mechanism, which comprises a support and a connecting rod assembly. The connecting rod assembly comprises a first rotary locking piece, a second rotary locking piece, a transmission connecting rod, a driving connecting rod and a telescopic driving piece. The rotary locking pieces are rotatably arranged on the support. The transmission connecting rod is hingedly connected to the first rotary locking piece and the second rotary locking piece. The two ends of the rotary connecting rod are hingedly connected to the driving connecting rod and the transmission connecting rod. The telescopic driving piece is connected to the driving connecting rod and can drive the first rotary locking piece and the second rotary locking piece to rotate to a locking angle or an unlocking angle. In the state that the rotary locking pieces rotate to the locking angle, the rotary connecting rod and the driving connecting rod are located on the same straight line, the telescopic direction of the telescopic driving piece is parallel to the rotary connecting rod, the connecting rod assembly is in a dead point state, and external force generated in the battery pack hoisting process cannot impact the telescopic driving piece, so that the telescopic driving piece is effectively protected from being broken.

Description

Technical Field

[0001] This utility model relates to the field of battery swapping technology, and in particular to a battery swapping rotary lock mechanism. Background Technology

[0002] With the rise of the new energy vehicle industry, the number of electric vehicles is increasing, and battery swapping stations for these vehicles face high-frequency battery swapping operations. Battery swapping stations typically house battery swapping robots and a large number of battery boxes. The battery swapping robots have a swapping spinlock mechanism used to grab and release battery boxes for transferring them between the electric vehicle and the swapping station. The swapping spinlock mechanism usually includes a support frame, a drive assembly, and a spinlock component. Both the drive assembly and the spinlock component are mounted on the support frame, and the drive assembly drives the spinlock component to rotate to grab or release the battery box. The safety and reliability of the battery box hoisting and locking process in battery swapping stations are becoming increasingly important. Excessive swaying during battery box hoisting or rigid impacts during lifting and unloading can transmit external forces to the drive assembly, generating impact loads that may even lead to drive assembly failure in severe cases. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a battery swapping rotary lock mechanism.

[0004] The present invention adopts the following technical solution:

[0005] A battery swapping rotary lock mechanism includes a bracket and a linkage assembly, the linkage assembly comprising:

[0006] A first rotary locking member and a second rotary locking member, both of which are rotatably mounted on the bracket;

[0007] A transmission link, which is respectively hinged to the first rotary lock and the second rotary lock;

[0008] A drive link, which is pivotally mounted on the bracket, is located on one side of the transmission link;

[0009] A rotary link, the two ends of which are respectively hinged to the drive link and the transmission link;

[0010] A telescopic drive component is disposed on the bracket and connected to the drive linkage, which can drive the drive linkage to swing back and forth to drive the first rotary lock component and the second rotary lock component to rotate to the locking angle or the unlocking angle.

[0011] When the first and second rotary locking components are rotated to the locking angle, the rotary connecting rod and the driving connecting rod are located on the same straight line, and the extension and retraction direction of the telescopic driving component is parallel to the rotary connecting rod.

[0012] Optionally, the drive link includes a main rod body and a side extension body;

[0013] One end of the main rod is hinged to the bracket, and the side extension is connected to the other end of the main rod. The side extension and the main rod have an included angle.

[0014] The telescopic drive component is connected to the side extension body;

[0015] When the first and second rotary locking components are rotated to the locking angle, the extension and retraction direction of the telescopic drive component is parallel to the main rod body.

[0016] Optionally, the slewing link extends in a straight line;

[0017] The end of the main rod that is away from the side extension is connected to the bracket via a hinge seat;

[0018] The two ends of the rotary connecting rod are respectively hinged to the end of the main rod away from the connecting seat and the transmission connecting rod;

[0019] When the first and second rotary locking components are rotated to the locking angle, the main rod and the rotary connecting rod are located on the same straight line.

[0020] Optionally, the transmission link is bent to form a clearance space;

[0021] With the first and second rotary locking components rotated to the locking angle, the main rod and at least part of the rotary connecting rod are located within the clearance space.

[0022] Optionally, one end of the transmission link is provided with an end side bend extension section, and the transmission link is also provided with a side extension section;

[0023] The end side bend extension is hinged to the first rotary lock, the end of the transmission link opposite to the end side bend extension is hinged to the second rotary lock, and the rotary link is connected to the side extension.

[0024] The clearance space is formed between the side extension and the end side bending extension.

[0025] Optionally, the side extension extends obliquely toward the side away from the end-side bent extension.

[0026] Optionally, the transmission link includes a main body section, and the end side-bent extension section is connected to one end of the main body section;

[0027] The side extension is connected to the main body section;

[0028] One end of the main body segment away from the end side bend and extension segment is connected to the second rotary lock;

[0029] When the first and second rotary locking components are rotated to the locking angle, the rotary connecting rod is parallel to the main body section.

[0030] Optionally, the end-side bent extension includes a bent section and an end section;

[0031] The bent segment is connected to the main body segment, and the bent segment and the main body segment have an included angle;

[0032] The end segment is connected to the end of the bent segment and extends along the length of the main body segment, and the end segment is hinged to the first swivel lock.

[0033] Optionally, both the first and second rotary locking components include a rotating shaft, a locking block, and a protrusion;

[0034] The rotating shaft is rotatably connected to the bracket;

[0035] The locking block and the protrusion are respectively disposed on both sides of the bracket. The locking block and the protrusion are both connected to the rotating shaft and rotate synchronously with the rotating shaft.

[0036] The two ends of the transmission link are respectively hinged to the protrusions on the first and second rotary locking components.

[0037] Optionally, the battery swapping rotary lock mechanism includes a limit bracket;

[0038] The limiting frame is mounted on the bracket, and the limiting frame has a travel notch;

[0039] A limit baffle is provided on the transmission connecting rod, and the limit baffle extends to the stroke notch.

[0040] By adopting the above technical solution, this application has the following beneficial effects:

[0041] In the battery swapping rotary lock mechanism of this application, when the rotary lock component is rotated to the locking angle, the slewing link and the drive link are on the same straight line, the extension and retraction direction of the telescopic drive component is parallel to the slewing link, and the link assembly is in a dead point state. The external force generated during the battery pack hoisting process cannot impact the telescopic drive component. This method effectively protects the telescopic drive component from being broken.

[0042] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0043] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0044] Figure 1 This diagram shows the state of the rotary lock component of the battery swapping rotary lock mechanism provided in this embodiment of the application when it is in the unlocking angle;

[0045] Figure 2 This diagram illustrates the state of the rotary lock component of the battery swapping rotary lock mechanism provided in this application embodiment being at the locking angle.

[0046] In the diagram: 1. Bracket; 2a. First rotary locking component; 2b. Second rotary locking component; 21. Rotating shaft; 22. Locking block; 23. Protrusion; 3. Transmission connecting rod; 31. Clearance space; 32. Main body section; 33. Side extension section; 34. Bending section; 35. End section; 36. Limiting baffle; 4. Drive connecting rod; 41. Main rod body; 42. Side extension body; 5. Rotary connecting rod; 6. Telescopic drive component; 7. Limiting frame; 71. Stroke notch.

[0047] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0049] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] See Figure 1 and Figure 2 As shown in the figure, this application provides a battery swapping rotary lock mechanism, including a bracket 1 and a linkage assembly. The linkage assembly includes: a first rotary lock member 2a, a second rotary lock member 2b, a transmission link 3, a rotary link 5, a drive link 4, and a telescopic drive member 6. The first rotary lock member 2a and the second rotary lock member 2b are rotatably mounted on the bracket 1. The transmission link 3 is hinged to the first rotary lock member 2a and the second rotary lock member 2b respectively. The drive link 4 is swingably mounted on the bracket 1, located on one side of the transmission link 3. The rotary link 5 is hinged at both ends to the drive link 4 and the transmission link 3 respectively. The telescopic drive member 6 is mounted on the bracket 1 and connected to the drive link 4, capable of driving the drive link 4 to swing back and forth, thereby driving the first rotary lock member 2a and the second rotary lock member 2b to rotate to a locking angle or an unlocking angle. The telescopic drive member 6 can be hinged at both ends to the bracket 1 and the drive link 4 respectively. When the first rotary locking member 2a and the second rotary locking member 2b are rotated to the locking angle, such as Figure 2 As shown, the rotary connecting rod 5 and the drive connecting rod 4 are located on the same straight line, and the extension and retraction direction of the telescopic drive member 6 is parallel to the rotary connecting rod 5. The telescopic drive member 6 can be a cylinder, a hydraulic cylinder, or an electric push rod.

[0052] The bracket 1 can be connected to the lifting mechanism of the battery swapping robot and can move up and down under the control of the lifting mechanism. The lifting mechanism may include a suspension rope. The first rotary locking member 2a and the second rotary locking member 2b are rotatably mounted on the bracket 1. The linkage assembly can drive the first rotary locking member 2a and the second rotary locking member 2b to rotate so that both rotate simultaneously to the locking angle or the unlocking angle. The first rotary locking member 2a and the second rotary locking member 2b may each include a locking block 22, which protrudes along the direction perpendicular to the rotation axis of the rotary locking member. When the rotary locking member rotates to the locking angle, the locking block 22 on the rotary locking member extends out of the edge of the bracket 1, making it easy to engage with the top frame of the battery box. When the rotary locking member rotates to the unlocking angle, the locking block 22 on the rotary locking member retracts into one side of the bracket 1, and can disengage from the top frame of the battery box.

[0053] It should be noted that the battery swapping rotary lock mechanism of this application includes at least one linkage assembly. In some preferred embodiments, the battery swapping rotary lock mechanism may include two linkage assemblies. The two linkage assemblies are respectively located on both sides of the support 1 along its length.

[0054] In the battery swapping rotary lock mechanism of this application, when the rotary lock component is rotated to the locking angle, the rotary linkage 5 and the drive linkage 4 are on the same straight line, the extension and retraction direction of the telescopic drive component 6 is parallel to the rotary linkage 5, the linkage assembly is in a dead point state, and the external force generated during the battery box hoisting process cannot impact the telescopic drive component 6. This method effectively protects the telescopic drive component 6 from being broken.

[0055] In some possible implementations, the drive link 4 includes a main rod 41 and a side extension 42. One end of the main rod 41 is hinged to the bracket 1, and the side extension 42 is connected to the other end of the main rod 41. The side extension 42 and the main rod 41 form an angle, and the drive link 4 is approximately in the shape of a "7". A telescopic drive member 6 is connected to the side extension 42. When the first rotary locking member 2a and the second rotary locking member 2b are rotated to the locking angle, the telescopic drive member 6 extends parallel to the main rod 41. The structural components of the link assembly do not interfere with each other.

[0056] In some possible implementations, the slewing link 5 extends in a straight line. The end of the main rod 41 facing away from the side extension 42 is connected to the bracket 1 via a hinged seat. Both ends of the slewing link 5 are respectively hinged to the end of the main rod 41 facing away from the connecting seat and the transmission link 3. When the first rotary locking member 2a and the second rotary locking member 2b are rotated to the locking angle, the main rod 41 and the slewing link 5 are located on the same straight line. The link assembly is in a dead-point state, preventing external forces generated during battery pack hoisting from impacting the telescopic drive member 6. This method effectively protects the telescopic drive member 6 from breakage.

[0057] In some possible implementations, the transmission link 3 is bent to form a clearance space 31. When the first rotary locking member 2a and the second rotary locking member 2b are rotated to the locking angle, the main rod body 41 and at least part of the rotary link 5 are located within the clearance space 31. By providing the clearance space 31 on the transmission link 3, when the rotary locking member is rotated to the locking angle, the main rod body 41 is accommodated within the clearance space 31, and the transmission link 3 avoids the main rod body 41, so that the main rod body 41 and the rotary link 5 can be smoothly aligned on the same straight line.

[0058] In some possible implementations, one end of the transmission link 3 is provided with an end side bend extension, and the transmission link 3 is also provided with a side extension 33. The end side bend extension is hinged to the first rotary lock member 2a, and the end of the transmission link 3 opposite to the end side bend extension is hinged to the second rotary lock member 2b. The rotary link 5 is connected (hinged) to the side extension 33, and the clearance space 31 is formed between the side extension 33 and the end side bend extension.

[0059] The side extension section 33 is designed for easy connection with the rotary link 5. The end side bending extension section allows for smooth connection to the first rotary lock member 2a while the transmission link 3 forms a clearance space 31.

[0060] In some possible implementations, the side extension 33 extends obliquely away from the end-side bent extension. The rotary link 5 on the driven link 4 can move against it when the drive link 4 swings.

[0061] In some possible implementations, the transmission link 3 includes a main body segment 32, the end side-bent extension segment is connected to one end of the main body segment 32, the side extension segment 33 is connected to the main body segment 32, and the end of the main body segment 32 away from the end side-bent extension segment is connected to the second rotary locking member 2b. When the first rotary locking member 2a and the second rotary locking member 2b are rotated to the locking angle, the rotary link 5 is parallel to the main body segment 32.

[0062] In some possible implementations, the end-side bent extension includes a bent section 34 and an end section 35, the bent section 34 being connected to the main body section 32, the bent section 34 and the main body section 32 having an included angle, the end section 35 being connected to the end of the bent section 34 and extending along the length direction of the main body section 32, the end section 35 being hinged to the first swivel member 2a.

[0063] Both the first and second rotary locking components 2a and 2b include a rotating shaft 21, a locking block 22, and a protrusion 23. The rotating shaft 21 is rotatably connected to the bracket 1. The bracket 1 can be a flat plate, and the rotating shaft 21 is perpendicular to the bracket 1. The locking block 22 and the protrusion 23 are respectively disposed on both sides of the bracket 1. Both the locking block 22 and the protrusion 23 are connected to the rotating shaft 21 and rotate synchronously with the rotating shaft 21. The two ends of the transmission link 3 are respectively hinged to the protrusion 23 on the first and second rotary locking components 2a and 2b. The movement of the transmission link 3 can drive the protrusion 23 to rotate, the protrusion 23 drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the locking block 22 to rotate, thus adjusting the angle of the locking block 22. The protrusion 23 can be sleeved on the rotating shaft 21, and the two can be connected by a spline and rotate synchronously.

[0064] In some possible implementations, the battery swapping rotary lock mechanism includes a limiting frame 7 mounted on the support 1. The limiting frame 7 has a travel notch 71, and a limiting baffle 36 is provided on the transmission link 3, extending to the travel notch 71. The travel notch 71 restricts the range of motion of the transmission link 3, ensuring that the link assembly moves within its travel range.

[0065] Under the thrust of the telescopic drive component 6, the drive link 4 can be rotated. The drive link 4 drives the rotary link 5 and the transmission link 3 to perform crank-connecting rod motion. Finally, the transmission link 3 transmits power to the rotary lock component. Figure 1 The center-rotating lock is at the unlocking angle. Figure 2 The rotary lock is in the locked angle. The difference in rotation angle between the two states can be 90°. When the rotary lock rotates to the unlocking angle, the telescopic drive 6 (electric push rod) is in its original state, i.e., the telescopic drive 6 is in the retracted state. When the rotary lock rotates to the locking angle, as... Figure 2 As shown, the electric push rod is in the fully extended state. At this time, the drive link 4 and the rotary link 5 are collinear, and the electric push rod is parallel to the drive link 4. By utilizing the dead point characteristics of the crank-connecting rod mechanism, the external force generated during the battery pack hoisting process cannot impact the electric push rod. This method effectively protects the electric push rod from being broken.

[0066] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A battery swapping rotary lock mechanism, comprising a bracket and a linkage assembly, characterized in that, The linkage assembly includes: A first rotary locking member and a second rotary locking member, both of which are rotatably mounted on the bracket; A transmission link, which is respectively hinged to the first rotary lock and the second rotary lock; A drive link, which is pivotally mounted on the bracket, is located on one side of the transmission link; A rotary link, the two ends of which are respectively hinged to the drive link and the transmission link; A telescopic drive component is disposed on the bracket and connected to the drive linkage, which can drive the drive linkage to swing back and forth to drive the first rotary lock component and the second rotary lock component to rotate to the locking angle or the unlocking angle. When the first and second rotary locking components are rotated to the locking angle, the rotary connecting rod and the driving connecting rod are located on the same straight line, and the extension and retraction direction of the telescopic driving component is parallel to the rotary connecting rod.

2. The battery swapping rotary lock mechanism according to claim 1, characterized in that, The drive link includes a main rod body and a side extension body; One end of the main rod is hinged to the bracket, and the side extension is connected to the other end of the main rod. The side extension and the main rod have an included angle. The telescopic drive component is connected to the side extension body; When the first and second rotary locking components are rotated to the locking angle, the extension and retraction direction of the telescopic drive component is parallel to the main rod body.

3. The battery swapping rotary lock mechanism according to claim 2, characterized in that, The slewing link extends in a straight line; The end of the main rod that is away from the side extension is connected to the bracket via a hinge seat; The two ends of the rotary connecting rod are respectively hinged to the end of the main rod away from the connecting seat and the transmission connecting rod; When the first and second rotary locking components are rotated to the locking angle, the main rod and the rotary connecting rod are located on the same straight line.

4. The battery swapping rotary lock mechanism according to claim 3, characterized in that, The transmission link is bent to form a clearance space; With the first and second rotary locking components rotated to the locking angle, the main rod and at least part of the rotary connecting rod are located within the clearance space.

5. The battery swapping rotary lock mechanism according to claim 4, characterized in that, One end of the transmission link is provided with an end side bend extension section, and the transmission link is also provided with a side extension section; The end side bend extension is hinged to the first rotary lock, the end of the transmission link opposite to the end side bend extension is hinged to the second rotary lock, and the rotary link is connected to the side extension. The clearance space is formed between the side extension and the end side bending extension.

6. The battery swapping rotary lock mechanism according to claim 5, characterized in that, The side extension extends obliquely toward the side away from the end-side bent extension.

7. The battery swapping rotary lock mechanism according to claim 5, characterized in that, The transmission link includes a main body section, and the end side-bent extension section is connected to one end of the main body section; The side extension is connected to the main body section; One end of the main body segment away from the end side bend and extension segment is connected to the second rotary lock; When the first and second rotary locking components are rotated to the locking angle, the rotary connecting rod is parallel to the main body section.

8. The battery swapping rotary lock mechanism according to claim 7, characterized in that, The end-side bending extension includes a bending section and an end section; The bent segment is connected to the main body segment, and the bent segment and the main body segment have an included angle; The end segment is connected to the end of the bent segment and extends along the length of the main body segment, and the end segment is hinged to the first swivel lock.

9. The battery swapping rotary lock mechanism according to any one of claims 1-8, characterized in that, Both the first and second rotary locking components include a rotating shaft, a locking block, and a protrusion; The rotating shaft is rotatably connected to the bracket; The locking block and the protrusion are respectively disposed on both sides of the bracket. The locking block and the protrusion are both connected to the rotating shaft and rotate synchronously with the rotating shaft. The two ends of the transmission link are respectively hinged to the protrusions on the first and second rotary locking components.

10. The battery swapping rotary lock mechanism according to any one of claims 1-8, characterized in that, Including limit brackets; The limiting frame is mounted on the bracket, and the limiting frame has a travel notch; A limit baffle is provided on the transmission connecting rod, and the limit baffle extends to the stroke notch.

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