Electric expansion warehouse mechanism and expansion control method

Abstract

The present invention provides an electric expansion warehouse mechanism and an expansion control method, which includes multiple sets of slide rail mechanisms, the slide rail mechanism includes slide rails and sliders that are slidably connected to each other, and the slide rail mechanism is used to be installed between the expansion warehouse and the base; There is also a driving device between the expansion chamber and the base, the driving device is provided with a DC permanent magnet feedback motor, the motor stator winding of the DC permanent magnet feedback motor is electrically connected to the power module, and the power module is connected to the output terminal of the ECU control system Electrical connection; a position sensor is provided on the stator shell of the DC permanent magnet feedback motor, and the position sensor is electrically connected to the ECU control system; the ECU control system is also provided with a current detection module, which is electrically connected to the stator winding of the motor for Detect the magnitude of the current on the stator winding of the motor. The invention realizes the automatic control of the expansion warehouse, has multiple safety protection and safeguard measures that do not interfere with each other, and further improves safety.

Description

technical field [0001] The invention relates to the field of automobile components, in particular to an electric expansion bin mechanism and a control method. Background technique [0002] Nowadays, with the improvement of people's living standards, the comfort type and space utilization rate in the car are getting higher and higher. Ordinary cars are limited by the space, the facilities in the car are relatively fixed, the mobility and space utilization rate are low, and the extra expansion space Limited, in the prior art, there is a scheme of adopting an electric expansion warehouse to expand the space, which is favored by customers. At present, the space expansion of the RV includes upward top expansion, side or rear expansion of the car, etc.; the expansion drive is mostly manual or semi-automatic expansion, and the support frame is added manually after expansion, which has many operating procedures, inconvenient use, and potential safety hazards. and other technical is...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, with the improvement of people's living standards, the comfort type and space utilization rate in the car are getting higher and higher. Ordinary cars are limited by the space, the facilities in the car are relatively fixed, the mobility and space utilization rate are low, and the extra expansion space Limited, in the existing technology, there is a scheme of using electric expansion warehouse to expand the space, which is favored by the majority of customers

At present, the space expansion of the RV includes upward top expansion, side or rear expansion of the car, etc.; the expansion drive is mostly manual or semi-automatic expansion, and the support frame is added manually after expansion, which has many operating procedures, inconvenient use, and potential safety hazards. and other technical issues

For example, Chinese patent document CN 210101454 U describes a caravan compartment that can be extended backwards and sidewards, which has the problems of relatively complicated structure and cumbersome operation steps.

Chinese patent document CN 209534852 U records a mobile police room with an extended box body, which uses hydraulic cylinders to realize telescopic movement, requires an independent hydraulic station, and has the problem of poor stress on the extended box body

In the existing technology, the extension mostly uses mechanical drive. In the process of mechanical drive, there is a potential safety hazard of entrapment of people or sundries, and thus there is a safety risk of burning the motor or causing casualties. There are also solutions that use force sensors for control , but this scheme makes the control part more complicated, especially the setting of the sensor and the arrangement of the wires are very troublesome

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