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EP-4737199-A1 - HOISTING TYPE BATTERY SWAPPING MECHANISM ADAPTIVE TO SWAPPABLE-BATTERY BOXES OF VARIOUS SIZES

EP4737199A1EP 4737199 A1EP4737199 A1EP 4737199A1EP-4737199-A1

Abstract

A hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes, comprising a lifting appliance (1) and an upper frame (21) fixed to a swappable-battery box. The lifting appliance (1) comprises a fixing support (11), cylinder bodies (112), telescopic arms (12) and rotary locking mechanisms (13). The cylinder bodies (112) are symmetrically arranged on the fixing support (11) and have opposite extending and retracting directions, each telescopic arm (12) being connected to an extending and retracting end of a cylinder body (112). The rotary locking mechanisms (13) are connected to lower ends of two sides of cross beams of the telescopic arms (12), and each rotary locking mechanism (13) is further provided with a hook (131) rotatable around an axis. The upper frame (21) is connected to the top of the swappable-battery box, and the upper frame (21) is provided with mounting blocks (211) adaptive to the rotary locking mechanisms (13), the mounting blocks (211) being provided with mounting holes (2111); when rotating a certain angle, the hooks (131) can extend into the mounting holes (2111). The lifting appliance (1) is extendable and retractable, and is adaptive to swappable-battery boxes of different sizes. For the swappable-battery boxes of different sizes, three-stage guide positioning and shared locking mechanisms (34) are provided in a central area, and have unchanged positions and sizes, such that a fixing base configured for a large size can be compatible with both swappable-battery boxes of large sizes and swappable-battery boxes of small sizes.

Inventors

  • WANG, Shuai
  • SHAO, XINGGUO
  • XIAO, Penghui

Assignees

  • Jiangsu Advanced Construction Machinery Innovation Center Ltd.

Dates

Publication Date
20260506
Application Date
20240408

Claims (10)

  1. A hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes, comprising a lifting appliance (1) and an upper frame (21) fixed to a swappable-battery box, wherein: the lifting appliance (1) comprises a fixing support (11), cylinder bodies (112), telescopic arms (12) and rotary locking mechanisms (13), the cylinder bodies (112) are symmetrically arranged on the fixing support (11) and have opposite extending and retracting directions, the telescopic arms (12) are connected to extending and retracting ends of the cylinder bodies (112), the rotary locking mechanisms (13) are connected to lower ends of cross beams on two sides of the telescopic arms (12), and each said rotary locking mechanism (13) is provided with a hook (131) rotatable around an axis; the upper frame (21) is connected to a top of the swappable-battery box and provided with mounting blocks (211) adaptive to the rotary locking mechanisms (13), the mounting blocks (211) are provided with mounting holes (2111), and when rotating by an angle, the hooks (131) extend into the mounting holes (2111).
  2. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 1, wherein positioning components (111) are arranged below the fixing support (11) and provided with slopes, and the upper frame (21) is provided with guide slopes (212) adaptive to the slopes of the positioning components (111).
  3. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 1, further comprising a guide positioning device, wherein the guide positioning device comprises square guide pillars (31) arranged on a first fixing base (3) and chamfers (221) arranged on edges of an inner surface of a base plate of a lower frame, the square guide pillars (31) are adaptive to the chamfers (221), and the lower frame is connected to a bottom of the swappable-battery box.
  4. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 3, wherein the guide positioning device further comprises cylindrical pins (32) arranged on the first fixing base (3) and positioning holes (222) formed in the base plate of the lower frame, tops of the cylindrical pins (32) are conical, the positioning holes (222) are flared, and the cylindrical pins (32) are adaptive to the positioning holes (222).
  5. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 4, wherein the square guide pillars (31) are higher than the cylindrical pins (32).
  6. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 4, wherein battery-swapping connector plugs (223) are fixedly connected to a center of a bottom of the lower frame, and battery-swapping connector sockets (33) adaptive to the battery-swapping connector plugs (223) are arranged in a center of the first fixing base (3).
  7. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 6, wherein the cylindrical pins (32) are higher than the battery-swapping connector sockets (33).
  8. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 3, wherein first locking mechanisms (34) are arranged on the first fixing base (3), the first fixing base (3) is located on an inner side of the square guide pillars (31), and locking cylinders (224) adaptive to the first locking mechanisms (34) are arranged in the lower frame.
  9. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 8, wherein each said first locking mechanism (34) comprises an electric push rod (341), a locking pin (342) and a locking pin sleeve (343) located at a base end, the locking pin (342) is connected to the electric push rod (341), the locking pin sleeve (343) is fixed to the first fixing base (3), and the electric push rod (341) is coaxial with an axial hole in the locking pin sleeve (343).
  10. The hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes according to Claim 8, wherein second locking mechanisms (34') are arranged on the first fixing base (3) and located on outer sides of the square guide pillars (31), and the second locking mechanisms (34') are matched with the locking cylinders (224) in the lower frame for the swappable-battery box of a large size.

Description

BACKGROUND OF THE INVENTION 1. Technical Field The invention relates to a hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes, and belongs to the technical field of battery swapping. 2. Description of Related Art At present, in the field of commercial vehicles, the battery swapping technology is mostly applied to swappable-battery heavy trucks, swappable-battery boxes of which are rectangular frames. Because swappable-battery boxes for different types of vehicles have basically the same length and width particularly in the horizontal direction, a lifting appliance for hoisting the swappable-battery boxes away from vehicle bodies, a vehicle-mounted fixing base for locking the swappable-battery boxes, and a fixing base for locking the swappable-battery boxes at battery swapping stations can adapt to different types of vehicles without changing their structures. Different form swappable-battery heavy trucks, there is a great variety of construction machines that have drastically different power demands, and corresponding swappable-battery boxes have drastically different sizes. The development of a specific battery swapping mechanism for each type of machines will greatly increase the development cost and is not beneficial to the adaption of the fixing base at the battery swapping stations to different type of machines. In addition, most lifting appliances in the prior art use a complex pneumatic circuit to drive locking mechanisms, leading to high costs. BRIEF SUMMARY OF THE INVENTION To overcome the defects in the prior art, the objective of the invention is to provide a hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes, solving the problems of poor universality of lifting appliances, complex locking mechanisms and high costs in the prior art. To fulfill the above objective, the invention adopts the following technical solution: A hoisting type battery swapping mechanism adaptive to swappable-battery boxes of various sizes comprises a lifting appliance and an upper frame fixed to a swappable-battery box, wherein: the lifting appliance comprises a fixing support, cylinder bodies, telescopic arms and rotary locking mechanisms, the cylinder bodies are symmetrically arranged on the fixing support and have opposite extending and retracting directions, the telescopic arms are connected to extending and retracting ends of the cylinder bodies, the rotary locking mechanisms are connected to lower ends of cross beams on two sides of the telescopic arms, and each rotary locking mechanism is provided with a hook rotatable around an axis;the upper frame is connected to a top of the swappable-battery box and provided with mounting blocks adaptive to the rotary locking mechanisms, the mounting blocks are provided with mounting holes, and when rotating by an angle, the hooks extend into the mounting holes. Further, positioning components are arranged below the fixing support and provided with slopes, and the upper frame is provided with guide slopes adaptive to the slopes of the positioning components. Further, the hoisting type battery swapping mechanism further comprises a guide positioning device, wherein the guide positioning device comprises square guide pillars arranged on a first fixing base and chamfers arranged on edges of an inner surface of a base plate of a lower frame, the square guide pillars are adaptive to the chamfers, and the lower frame is connected to a bottom of the swappable-battery box. Further, the guide positioning device further comprises cylindrical pins arranged on the first fixing base and positioning holes formed in the base plate of the lower frame, tops of the cylindrical pins are conical, the positioning holes are flared, and the cylindrical pins are adaptive to the positioning holes. Further, the square guide pillars are higher than the cylindrical pins. Further, battery-swapping connector plugs are fixedly connected to a center of a bottom of the lower frame, and battery-swapping connector sockets adaptive to the battery-swapping connector plugs are arranged in a center of the first fixing base. Further, the cylindrical pins are higher than the battery-swapping connector plugs. Further, first locking mechanisms are arranged on the first fixing base, the first fixing base is located on an inner side of the square guide pillars, and locking cylinders adaptive to the first locking mechanisms are arranged in the lower frame. Further, each first locking mechanism comprises an electric push rod, a locking pin and a locking pin sleeve located at a base end, the locking pin is connected to the electric push rod, the locking pin sleeve is fixed to the first fixing base, and the electric push rod is coaxial with an axial hole in the locking pin sleeve. Further, second locking mechanisms are arranged on the first fixing base and located on outer sides of the square guide pillars, and the second locking mechanisms ar