Battery pack lifting mechanism and battery replacing station

Abstract

The utility model discloses a battery pack lifting mechanism and a battery swap station. The battery pack lifting mechanism comprises a rack and a lifting assembly, a mounting surface is formed at the top of the rack, and the lifting assembly is at least partially arranged on the mounting surface. The lifting assembly comprises a driving device, a movable pulley device, a steering assembly and a cable. The driving device is arranged on the mounting surface and is provided with a moving end; the movable pulley device is connected to the moving end of the driving device and can be driven by the driving device to reciprocate in the first horizontal direction. The movable pulley device comprises a movable pulley, and a rotating shaft of the movable pulley extends in the vertical direction or basically extends in the vertical direction. The steering assembly is arranged on the mounting surface. One end of the cable is fixedly connected to the mounting face to form a fixed end, the cable is wound around the movable pulley and the steering assembly and then penetrates through the rack in the vertical direction, so that the other end of the cable is located below the rack to form a free end, and the free end of the cable is used for being connected with a battery lifting tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology field, more particularly to a battery pack lifting mechanism and battery swap station. BACKGROUND

[0002] At present, the battery pack of some electric heavy trucks is arranged at the back, and lifting equipment or battery pack lifting mechanism is needed in the heavy truck battery swap station to complete the lifting of the battery pack. The battery pack lifting mechanism commonly used in most battery swap stations is a combination of a motor, a speed reducer and a steel wire rope to complete lifting.

[0003] With the increase of the scale of the battery swap station, higher requirements are put forward for the performance and cost of the product. For example, the current battery pack lifting mechanism mostly uses a winch, but this structure has more deviation after lifting due to the accumulation of the steel wire rope, and the steel wire rope is greatly worn. Moreover, the existing battery pack lifting mechanism has high cost, occupies much space and is difficult to install.

[0004] Therefore, a battery pack lifting mechanism and battery swap station are needed to at least partially solve the above problems. SUMMARY

[0005] A series of simplified concepts are introduced in the summary part, which will be further described in detail in the specific embodiment part. The summary part of the utility model does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and even less means to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the first aspect of the utility model provides a battery pack lifting mechanism, which comprises a rack and a lifting assembly, the top of the rack forms a mounting surface, and the lifting assembly is at least partially arranged on the mounting surface;

[0007] The lifting assembly comprises:

[0008] a driving device, the driving device is arranged on the mounting surface, and the driving device has a moving end;

[0009] a movable pulley device, the movable pulley device is connected to the moving end of the driving device, and the movable pulley device can be driven by the driving device and reciprocally moved along a first horizontal direction; wherein,

[0010] The movable pulley device comprises a movable pulley, and the rotating shaft of the movable pulley extends along or substantially extends along the vertical direction;

[0011] a turning assembly, the turning assembly is arranged on the mounting surface;

[0012] A cable is fixed to the mounting surface at one end to form a fixed end, the cable is arranged around the movable pulley and the steering assembly and then arranged along the vertical direction of the rack to make the other end of the cable below the rack to form a free end, and the free end of the cable is used to connect a battery lifting device.

[0013] According to the battery pack lifting mechanism, the wheel type switching mode is adopted, the offset of the cable is small, the wear of the cable is small, the rotating shaft of the movable pulley is arranged vertically, the size of the battery pack lifting mechanism in the vertical direction is reduced, the occupied space is smaller, and the installation is more convenient.

[0014] Optionally, along the first horizontal direction, the fixed end of the cable and the steering assembly are located on one side of the mounting surface away from the moving end of the driving device.

[0015] Optionally, the movable pulley device further comprises a mounting seat, and the movable pulley is rotatably arranged on the mounting seat.

[0016] The mounting seat is connected to the moving end of the driving device.

[0017] Optionally, the battery pack lifting mechanism further comprises a guide mechanism, the guide mechanism is arranged on the mounting surface, and extends along the first horizontal direction.

[0018] The mounting seat is movably arranged on the guide mechanism.

[0019] Optionally, the steering assembly comprises:

[0020] a support, the support is arranged on the mounting surface;

[0021] a first fixed pulley, the first fixed pulley is rotatably arranged on the support, and the rotating shaft of the first fixed pulley extends along the horizontal direction or substantially extends along the horizontal direction;

[0022] a second fixed pulley, the second fixed pulley is rotatably arranged on the support, and the second fixed pulley is spaced apart from the first fixed pulley, and the rotating shaft of the second fixed pulley extends along the horizontal direction or substantially extends along the horizontal direction;

[0023] The cable extends from the movable pulley and is arranged around the first fixed pulley and the second fixed pulley in sequence.

[0024] Optionally, the rotating shaft of the first fixed pulley extends along a second horizontal direction, the rotating shaft of the second fixed pulley extends along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction.

[0025] The second fixed pulley is spaced apart from the first fixed pulley in the first horizontal direction.

[0026] Optionally, the drive device is configured as an electric cylinder;

[0027] The electric cylinder includes a motor and a push rod. The output end of the motor is connected to one end of the push rod. The push rod is used to extend and retract along the first horizontal direction under the drive of the motor. The end of the push rod away from the motor forms the moving end.

[0028] Optionally, the lifting assembly includes two of the aforementioned movable pulley devices and two sets of the aforementioned steering assemblies;

[0029] The two movable pulley devices are respectively arranged on both sides of the drive device in the second horizontal direction, and the two sets of steering components are respectively arranged on both sides of the drive device in the second horizontal direction;

[0030] Wherein, the second horizontal direction is perpendicular to the first horizontal direction.

[0031] Optionally, the battery pack lifting mechanism includes two sets of the lifting components;

[0032] The two sets of lifting components are arranged opposite each other along the first horizontal direction, and the moving end of the driving device of one set of lifting components faces the moving end of the driving device of the other set of lifting components.

[0033] The two drive devices are staggered in the vertical direction.

[0034] A second aspect of this application provides a battery swapping station, the battery swapping station including the battery pack lifting mechanism described in the first aspect above.

[0035] The battery swapping station according to this utility model has similar technical effects to the battery pack lifting mechanism described in the first aspect above. Attached Figure Description

[0036] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.

[0037] In the attached image:

[0038] Figure 1 This is a perspective view of a battery pack lifting mechanism according to one embodiment of this application;

[0039] Figure 2 for Figure 1 A top view of the battery pack lifting mechanism; and

[0040] Figure 3 for Figure 1 Side view of the battery pack lifting mechanism.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100: Battery pack lifting mechanism; 101: Frame

[0043] 102: Lifting Components 103: Mounting Surface

[0044] 110: Guiding mechanism; 111: Moving part

[0045] 120: Movable pulley device; 121: Mounting base

[0046] 122: Movable pulley; 130: Drive unit

[0047] 131: Motor 132: Mobile terminal

[0048] 140: Steering assembly 141: Support

[0049] 142: First fixed pulley; 143: Second fixed pulley

[0050] 150: Cable 151: Free end

[0051] 152: Fixed end; 160: Rope end fixing part

[0052] D1: First horizontal direction; D2: Second horizontal direction

[0053] D3: Vertical direction Detailed Implementation

[0054] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0056] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0057] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0058] refer to Figure 1 , Figure 2 and Figure 3 This application provides a battery pack lifting mechanism 100, which includes a frame 101 and a lifting assembly 102. A mounting surface 103 is formed on the top of the frame 101, and the lifting assembly 102 is at least partially disposed on the mounting surface 103. The lifting assembly 102 includes a drive device 130, a movable pulley device 120, a steering assembly 140, and a cable 150. The drive device 130 is disposed on the mounting surface 103 and has a movable end 132. The movable pulley device 120 is connected to the movable end 132 of the drive device 130 and is capable of being driven by the drive device 130 to reciprocate along a first horizontal direction D1. The movable pulley device 120 includes a movable pulley 122, the axis of which extends along or substantially along the vertical direction D3. The steering assembly 140 is disposed on the mounting surface 103. One end of the cable 150 is fixed to the mounting surface 103 to form a fixed end 152. The cable 150 is wound around the movable pulley 122 and the steering assembly 140 and then passes through the frame 101 in the vertical direction D3 so that the other end of the cable 150 is located below the frame 101 to form a free end 151. The free end 151 of the cable 150 is used to connect the battery hanger.

[0059] According to the battery pack lifting mechanism 100 of this application, a wheel-type transfer method is adopted, the offset of the cable 150 is small and the wear is small. At the same time, the shaft of the movable pulley 122 is basically set vertically, which reduces the vertical size of the battery pack lifting mechanism 100, occupies less space, and is more conducive to installation.

[0060] The fixed end 152 of the cable 150 and the steering assembly 140 are both located on the mounting surface 103 along the first horizontal direction D1, away from the moving end 132 of the drive device 130. Correspondingly, the movable pulley device 120 is located on the mounting surface 103 along the first horizontal direction D1, close to the moving end 132 of the drive device 130. This facilitates the push-pull drive of the moving end 132 of the drive device 130 on the pulley device 120.

[0061] More specifically, the battery pack lifting mechanism 100 also includes a guide mechanism 110, which is laid on the mounting surface 103 along a first horizontal direction D1. The guide mechanism 110 can be configured as a linear guide rail. The movable pulley device 120 also includes a mounting base 121, on which a movable pulley 122 is rotatably mounted. The mounting base 121 is movably mounted on the guide mechanism 110. Furthermore, the mounting base 121 is connected to the moving end 132 of the drive device 130. Thus, the mounting base 121 can move along the linear guide rail along the first horizontal direction D1 under the driving action of the drive device 130.

[0062] In an alternative embodiment, the guide mechanism 110 may further include a movable member 111, which is movably disposed on the linear guide rail and is capable of sliding or rolling along the linear guide rail in a first horizontal direction D1. The mounting base 121 may be fixedly disposed on the movable member 111 so as to move with the movable member 111.

[0063] As one implementation, the drive device 130 can be configured as an electric cylinder. Specifically, the electric cylinder includes a motor 131 and a push rod (not shown in the figures). The output end of the motor 131 is connected to one end of the push rod, which is used to extend and retract along a first horizontal direction D1 under the drive of the motor 131. The end of the push rod away from the motor 131 forms the aforementioned movable end 132. The mounting base 121 of the movable pulley device 120 is connected to the end of the push rod away from the motor 131, thereby enabling the extension and retraction of the push rod to push or drive the movable pulley device 120 to move along the first horizontal direction D1. As one implementation, refer to... Figure 1 and Figure 2 The battery pack lifting mechanism 100 includes two sets of lifting components 102. The two sets of lifting components 102 are arranged opposite each other along the first horizontal direction D1, and the moving end 132 of the driving device 130A of one set of lifting components 102 is directed toward the moving end of the driving device 130B of the other set of lifting components 102.

[0064] Preferably, in order to achieve a more compact structure and make full use of the limited installation space, the two drive units 130 are staggered in the vertical direction D3, such as... Figure 3As shown, the drive unit 130A on one side is positioned higher, while the drive unit 130B on the other side is positioned lower. This allows the moving end 132 of the drive unit 130A to be positioned above the drive unit 130B, and the moving end of the drive unit 130B to be positioned below the drive unit 130A. Thus, the drive unit 130A on the left drives the two movable pulley devices 120A on the right, while the drive unit 130B on the right drives the two movable pulley devices 130A on the left. This arrangement makes full use of the installation space, resulting in a more compact structure with a smaller footprint, and also reduces the stroke of each drive unit 130 without reducing the lifting range of the free end 151.

[0065] refer to Figure 1 and Figure 2 The steering assembly 140 includes a support 141, a first fixed pulley 142, and a second fixed pulley 143. The support 141 is mounted on the mounting surface 103. Both the first fixed pulley 142 and the second fixed pulley 143 are rotatably mounted on the support 141. The first fixed pulley 142 and the second fixed pulley 143 are spaced apart, preferably spaced apart in a first horizontal direction D1. The second fixed pulley 143 is closer to the movable pulley 122 than the first fixed pulley 142.

[0066] Furthermore, the pivots of both the first fixed pulley 142 and the second fixed pulley 143 extend horizontally or substantially horizontally. The cable 150 extends from the movable pulley 122 and is sequentially wound around the first fixed pulley 142 and the second fixed pulley 143. Preferably, the pivot of the first fixed pulley 142 extends along a second horizontal direction D2, and the pivot of the second fixed pulley 143 extends along a second horizontal direction D2, with the second horizontal direction D2 perpendicular to the first horizontal direction D1.

[0067] In the embodiment shown in this application, the fixed end 152 of the cable 150 and the steering assembly 140 are both located on the side of the drive device 130 on the mounting surface 103 along the second horizontal direction D2. For example, the drive device 130 is provided with a rope end fixing part 160 on the side along the second horizontal direction D2, the fixed end 152 of the cable 150 is fixed on the rope end fixing part 160 at a position corresponding to the height of the movable pulley 122, and the other end is wound around the movable pulley 122 and the steering assembly 140 and then passed through the frame 101.

[0068] Optionally, the lifting assembly 102 includes two movable pulley devices 120 and two sets of steering assemblies 140. The two movable pulley devices 120 are respectively arranged on both sides of the drive device 130 in the second horizontal direction D2, and the two sets of steering assemblies 140 are respectively arranged on both sides of the drive device 130 in the second horizontal direction D2.

[0069] The second aspect of this application provides a battery swapping station, which includes the battery pack lifting mechanism 100 described in the first aspect.

[0070] The battery swapping station according to this utility model has similar technical effects to the battery pack lifting mechanism 100 of the first aspect described above.

[0071] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0072] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This utility model is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A battery pack lifting mechanism, characterized in that, The battery pack lifting mechanism includes a frame and a lifting assembly, wherein a mounting surface is formed on the top of the frame, and the lifting assembly is at least partially disposed on the mounting surface; The lifting component includes: A driving device, the driving device being disposed on the mounting surface, the driving device having a movable end; A movable pulley device is provided, connected to the moving end of the driving device, and capable of being driven by the driving device to reciprocate along a first horizontal direction; wherein... The movable pulley device includes a movable pulley, the axis of which extends vertically or substantially vertically. A steering assembly, the steering assembly being disposed on the mounting surface; A cable, one end of which is fixed to the mounting surface to form a fixed end, the cable is wound around the movable pulley and the steering assembly and then passes through the frame in a vertical direction so that the other end of the cable is located below the frame to form a free end, the free end of which is used to connect to the battery hoist.

2. The battery pack lifting mechanism according to claim 1, characterized in that, Along the first horizontal direction, the fixed end of the cable and the steering assembly are both located on the side of the mounting surface away from the moving end of the drive device.

3. The battery pack lifting mechanism according to claim 1, characterized in that, The movable pulley device also includes a mounting base, on which the movable pulley is rotatably mounted; The mounting base is connected to the moving end of the drive device.

4. The battery pack lifting mechanism according to claim 3, characterized in that, The battery pack lifting mechanism further includes a guiding mechanism, which is laid on the mounting surface and extends along the first horizontal direction; The mounting base is movably disposed on the guide mechanism.

5. The battery pack lifting mechanism according to claim 1, characterized in that, The steering component includes: Support, the support being disposed on the mounting surface; A first fixed pulley is rotatably mounted on the support, and the axis of rotation of the first fixed pulley extends horizontally or substantially horizontally. The second fixed pulley is rotatably mounted on the support and is spaced apart from the first fixed pulley. The axis of rotation of the second fixed pulley extends horizontally or substantially horizontally. The cable extends from the movable pulley and is sequentially wound around the first fixed pulley and the second fixed pulley.

6. The battery pack lifting mechanism according to claim 5, characterized in that, The shaft of the first fixed pulley extends along a second horizontal direction, and the shaft of the second fixed pulley extends along a second horizontal direction, which is perpendicular to the first horizontal direction. The second fixed pulley is spaced apart from the first fixed pulley in the first horizontal direction.

7. The battery pack lifting mechanism according to claim 1, characterized in that, The drive device is configured as an electric cylinder; The electric cylinder includes a motor and a push rod. The output end of the motor is connected to one end of the push rod. The push rod is used to extend and retract along the first horizontal direction under the drive of the motor. The end of the push rod away from the motor forms the moving end.

8. The battery pack lifting mechanism according to any one of claims 1-7, characterized in that, The lifting assembly includes two of the aforementioned movable pulley devices and two sets of the aforementioned steering assemblies; The two movable pulley devices are respectively arranged on both sides of the drive device in the second horizontal direction, and the two sets of steering components are respectively arranged on both sides of the drive device in the second horizontal direction; Wherein, the second horizontal direction is perpendicular to the first horizontal direction.

9. The battery pack lifting mechanism according to claim 8, characterized in that, The battery pack lifting mechanism includes two sets of the lifting components; The two sets of lifting components are arranged opposite each other along the first horizontal direction, and the moving end of the driving device of one set of lifting components faces the moving end of the driving device of the other set of lifting components. The two drive devices are staggered in the vertical direction.

10. A battery swapping station, characterized in that, The battery swapping station includes a battery pack lifting mechanism according to any one of claims 1-9.

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