Battery replacement locking device

Abstract

The invention relates to the technical field of battery replacement, in particular to a battery replacement locking device which comprises a bearing assembly, a flange assembly and a square column bolt. The bearing assembly comprises an inner steel ring, an outer steel ring and a locking pin, wherein the inner steel ring is arranged in the outer steel ring, and the locking pin is arranged at one end of the inner steel ring. The flange assembly comprises a flange and a stop piece, a mounting groove is formed in the surface of the flange, the stop piece is located in the mounting groove, the stop piece is provided with a plurality of blades, and the blades are clamped with the mounting groove. A clamping groove is formed in the middle of the square column bolt and used for clamping the stoppiece. The square column bolt is adopted for locking, unreliable factors caused by thread abrasion are avoided, the installation reliability is improved, meanwhile, a battery pack can be fixed in at least one freedom degree direction, the replacement time of the battery pack is effectively shortened, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of battery replacement, in particular to a battery replacement locking device. Background technique [0002] In today's serious environmental pollution, electric vehicles are a new type of transportation that we are currently developing with all our strength because of their zero-emission characteristics. However, due to the limitation of battery technology, the long charging time of vehicles is an important factor restricting the development of electric vehicles. There are all kinds of electric vehicles on the market, but the mileage and charging experience are not recognized by consumers. The current charging mode has two types: fast charging and slow charging: fast charging takes 30 minutes at the fastest, and the waiting time is long, which will damage the battery and seriously affect the battery life; slow charging is more protective of the battery but the waiting time is too long. Charging takes 6 to...

AI Technical Summary

Problems solved by technology

[0005] 1) One is side battery replacement. Although the overall structure is simple, the battery is only installed on the side, lacking vehicle positioning, the fixing of the battery and the body is not firm, there is a gap in the lock, and the battery is easy to shake during the fast running of the vehicle, which is safe. Hidden danger;

[0006] 2) The second is to replace the battery in separate compartments. In this way, the battery is divided into 2 pieces and installed in the front compartment and the rear compartment of the car respectively. When disassembling the battery, it is like disassembling the engine. Although it is simple and convenient, it is easy to operate manually. But it is not conducive to automation, the mechanical degree is low, and the battery is installed separately, and it takes too long to disassemble, which is not conducive to user experience;

[0007] 3) The third way is to replace the battery from the bottom of the car. At present, there are two locking methods for battery replacement at the bottom: one is to use a linkage locking mechanism, which is easy to operate but prone to failures, such as being stuck, unable to be disassembled and unable to be installed. , the battery pack will fall if it is heavy; one is to use bolts to lock. This method has a simple structure, but the weight of the battery is borne by the bolts, and the torque is relatively large. In the case of cyclic disassembly of the bolts, the bolts are prone to fatigue damage

[0008] When replacing the battery from the bottom of the car, the installation methods are divided into fixed and replaceable. The fixed method is generally fastened to the lower body by bolts; the replaceable type generally uses a quick replacement mechanism to realize the convenient fixing of the battery on the chassis; the existing The replaceable installation method, the battery is fixed by the clamping mechanism, and the battery is fixed on one degree of freedom, but the use of the bolt mechanism will cause wear and tear, resulting in unreliable factors in the later stage

[0009] However, this solution uses more than one degree of freedom to fix the battery, and also uses a special bolt mechanism to fix the battery in the vertical direction. However, after the battery is replaced frequently, the thread will inevitably be worn out, resulting in unreliable factors in the later stage.

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