Motor cam operating mechanism and transmission mechanism thereof

Patent metadata

Field	Value
Publication number	US-9754736-B2
Application number	US-201415103352-A
Country	US
Kind code	B2
Filing date	Oct 24, 2014
Priority date	Dec 13, 2013
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A transmission mechanism includes a link lever, a fan-shaped lever, a spring mechanism and a thrust shaft pin. An outer end of the link lever includes a pin hole and an inner end includes a chute. A cam shaft pin passes through the chute and moves in the chute to drive the link lever when a motor cam rotates. A roller is mounted between the pin hole and the chute. The fan-shaped lever is connected to a main shaft and includes a first chute. The top of the spring mechanism includes a hole. The thrust shaft pin passes through second chutes on two side plates, the first chute, the hole, and the pin hole and links the link lever, the fan-shaped lever and the spring mechanism. The thrust shaft pin compresses the spring mechanism to store energy and drives the fan-shaped lever to rotate and a contact to move.

First claim

What is claimed is:

1. A transmission mechanism of a motor cam operating mechanism, wherein the transmission mechanism is in coordination with a cam driven by a motor and is arranged on one side of the cam, the transmission mechanism and the cam are both mounted between two side plates, the transmission mechanism comprising:
a link lever, an outer end of the link lever is provided with a pin hole and an inner end of the link lever is provided with a chute; a cam shaft pin passes through the chute and is fastened on the cam; when the cam rotates, the cam shaft pin moves in the chute, when the cam shaft pin contacts with an end of the chute, the cam drives the link lever to move through the cam shaft pin; a roller is mounted between the pin hole and the chute;
a fan-shaped lever, the fan-shaped lever is mounted on the two side plates via a main shaft and an auxiliary shaft, the fan-shaped lever is provided with a first chute;
a spring mechanism, the bottom of the spring mechanism is rotatably mounted on the two side plates and the top of the spring mechanism is provided with a hole;
a thrust shaft pin, the thrust shaft pin passes through second chutes on the two side plates, the first chute on the fan-shaped lever, the hole on the top of the spring mechanism, and the pin hole on the outer end of the link lever, the thrust shaft pin makes linkage of the link lever, the fan-shaped lever and the spring mechanism;
when the cam rotates, the cam drives the thrust shaft pin to compress the spring mechanism via the link lever so that the spring mechanism stores energy; in an energy storing phase of the spring mechanism, the thrust shaft pin moves in the first chute of the fan-shaped lever, there is no interaction between the thrust shaft pin and the fan-shaped lever, the fan-shaped lever remains stationary and a contact that is mounted on the main shaft remains stationary; in an energy releasing phase of the spring mechanism, the thrust shaft pin moves to an end of the first chute and interacts with the fan-shaped lever, the fan-shaped lever rotates and drives the contact to move via the main shaft.

2. The transmission mechanism of a motor cam operating mechanism according to claim 1 , wherein the spring mechanism comprises a spring guide rod, an upper bracket a lower bracket and a spring;
the bottom of the spring guide rod is provided with a hole and the spring guide rod is rotatably mounted on the two side plates, the top of the spring guide rod is provided with a chute;
the upper bracket is mounted in the chute on the top of the spring guide rod and moves in the chute on the top of the spring guide rod, the top of the upper bracket is provided with a hole for the thrust shaft pin to pass through;
the lower bracket is mounted on the bottom of the spring guide rod;
the spring is installed on the spring guide rod and between the upper bracket and the lower bracket.

3. The transmission mechanism of a motor cam operating mechanism according to claim 1 , wherein
the fan-shaped lever comprises two fan-shaped plates and a connection portion connecting the two fan-shaped plates, the two fan-shaped plates are identical, each fan-shaped plate is positioned close to at least one of the two side plates respectively, wherein one fan-shaped plate is rotatably mounted on one of the two side plates through the main shaft while the other fan-shaped plate is rotatably mounted on the other of the two side plates through the auxiliary shaft;
the bottom of each fan-shaped plate is provided with a fan-shaped expansion area, and the first chute is provided in the fan-shaped expansion area.

4. A motor cam operating mechanism comprising the cam, a common side transmission mechanism and a reserve side transmission mechanism; the cam, the common side transmission mechanism and the reserve side transmission mechanism are mounted between the two side plates; the common side transmission mechanism and the reserve side mechanism are the transmission mechanism according to claim 1 , the common side transmission mechanism and the reserve side transmission mechanism are arranged on both sides of the cam in a symmetrical manner;
the cam is mounted on an output shaft of a motor, the motor drives the cam to rotate clockwise or counterclockwise;
when operating a common side power supply, the rotation range of the cam is biased towards a reserve side; during a closing procedure, the cam drives the fan-shaped lever through the link lever and cause the fan-shaped lever to rotate from a position deviated outwards from the vertical position to the vertical position, and further to a position deviated inwards from the vertical position, so as to perform an energy storing procedure and an energy releasing procedure; during an opening procedure, the cam drives the fan-shaped lever through the link lever and cause the fan-shaped lever to rotate from a position deviated inwards from the vertical position to the vertical position, and further to a position deviated outwards from the vertical position, so as to perform an energy storing procedure and an energy releasing procedure;
when operating a reserve side power supply, the rotation range of the cam is biased towards a common side; during a closing procedure, the cam drives the fan-shaped lever through the link lever and cause the fan-shaped lever to rotate from a position deviated outwards from the vertical position to the vertical position, and further to a position deviated inwards from the vertical position, so as to perform an energy storing procedure and an energy releasing procedure; during an opening procedure, the cam drives the fan-shaped lever through the link lever and cause the fan-shaped lever to rotate from a position deviated inwards from the vertical position to the vertical position, and further to a position deviated outwards from the vertical position, so as to perform an energy storing procedure and an energy releasing procedure.

5. The motor cam operating mechanism according to claim 4 , wherein the cam comprises a shaft portion and a fan-shaped portion, the shaft portion is provided with a shaft hole, the output shaft of the motor is installed in the shaft hole, the cam shaft pin is fastened on the fan-shaped portion;
the roller is assembled on the link lever through a roller pin.

6. A transmission mechanism of a motor cam operating mechanism, wherein the transmission mechanism is in coordination with a cam driven by a motor and is arranged on one side of the cam, the transmission mechanism comprising:
a link lever, an outer end of the link lever is provided with a pin hole and an inner end of the link lever is provided with a chute; a cam shaft pin passes through the chute and is fastened on the cam; when the cam rotates, the cam shaft pin moves in the chute, when the cam shaft pin contacts with an end of the chute, the cam drives the link lever to move through the cam shaft pin; a roller is mounted between the pin hole and the chute;
a fan-shaped lever, the fan-shaped lever is rotatably mounted on a main shaft, the fan-shaped lever is provided with a first chute;
a spring mechanism, the bottom of the spring mechanism is rotatably mounted on a rotation shaft and the top of the spring mechanism is provided with a hole;
a thrust shaft pin, the thrust shaft pin passes through the first chute on the fan-shaped lever, the hole on the top of the spring mechanism, and the pin hole on the outer end of the link lever, the thrust shaft pin makes linkage of the link lever, the fan-shaped lever and the spring mechanism;
when the cam rotates, the cam drives the thrust shaft pin to compress the spring mechanism via the link lever so that the spring mechanism stores energy; in an energy storing phase of the spring mechanism, the thrust shaft pin moves in the first chute of the fan-sh

Assignees

• Seari Electric Technology Co Ltd
• Zhejiang Chint Electrics Co Ltd

Inventors

• Wang Bo
• Zhou Jinyu
• Qu Degang
• Jiang Xiaopeng
• Lu Jiajun

Classifications

• H01H5/06

  by compression or extension of coil springs · CPC title

• H01H9/20

  Interlocking, locking, or latching mechanisms · CPC title

• H01H3/3015 Primary

  using cam devices · CPC title

• H01H9/26

  for interlocking two or more switches ({H01H13/568 takes precedence;} by a detachable member H01H9/28 {; for electromagnetic relays H01H50/323}) · CPC title

• H01H3/3052

  Linear spring motors · CPC title