CN-224217443-U - Mechanical holding relay

CN224217443UCN 224217443 UCN224217443 UCN 224217443UCN-224217443-U

Abstract

The utility model relates to a mechanical holding relay which comprises a relay base and an upper cover in buckling connection, wherein a driving motor is arranged in the relay base and is connected with at least two movable contact plates rotating around a shaft through a gear transmission mechanism, one end of each movable contact plate is connected with a conductive sheet arranged on the relay base through a flexible conductive piece, a movable contact is arranged at the other end of each movable contact plate, an electrostatic sheet is further arranged on the relay base, a static contact is arranged on each electrostatic sheet, and the movable contact is contacted with or separated from the static contact.

Inventors

WANG LIANG
Hua Jiahui
ZHOU XING
TANG JIAYAO
CHEN QIANWEI

Assignees

江阴力源电子有限公司

Dates

Publication Date: 20260508
Application Date: 20250312

Claims (10)

1. The utility model provides a machinery keeps relay, includes relay base and lock upper cover of being connected, its characterized in that, be equipped with driving motor in the relay base, driving motor passes through gear train and is connected with two at least pivoted movable contact plates, movable contact plate one end is connected with the conducting strip that sets up on the relay base through flexible conductive piece, the other end of movable contact plate is equipped with movable contact, still be equipped with the static piece on the relay base, be equipped with the stationary contact on the static piece, movable contact with stationary contact or separation.
2. The mechanical holding relay according to claim 1, wherein the gear transmission mechanism comprises a worm, the worm is meshed with a worm wheel arranged in the relay base, a wheel shaft of the worm wheel is vertically arranged in the relay base, one side of the worm wheel is provided with a coaxial driving gear, the driving gear is meshed with a transmission gear arranged in the relay base, the transmission gear is arranged in the relay base at one side of the worm wheel far away from the worm, the transmission gear is composed of two coaxial semicircular teeth parts, the two semicircular teeth parts are overlapped together and are respectively positioned at two sides of a gear shaft, the transmission gear is vertically arranged in the relay base, and the driving gear is meshed with the semicircular teeth part positioned below; The relay base is arranged on one side, far away from the driving gear, of the driving gear, a driven gear is arranged in the relay base and meshed with the semicircular tooth part, located above the driving gear, of the driven gear, and the driven gear is provided with an arc-shaped tooth part with a circle smaller than 1/4.
3. The mechanical holding relay according to claim 2, wherein mounting seats are respectively arranged on two side surfaces of the driven gear, arc-shaped mounting portions coaxial with the driven gear shaft are arranged on the mounting seats, arc-shaped mounting portions are annularly arranged on the outer sides of the driven gear shaft and form arc-shaped mounting grooves with the driven gear shaft, one movable contact plate is arranged in each arc-shaped mounting groove, semicircular arc rotating portions are also arranged at positions, close to the end portions, on one side of the middle of the movable contact plate, and the movable contact plate is clamped in the arc-shaped mounting grooves through the semicircular arc rotating portions.
4. A mechanical hold relay according to claim 3, wherein a spring is further connected between the movable contact plate and the driven gear, one end of the spring is abutted against the mounting base, and the other end of the spring is abutted against the movable contact plate at a position close to the movable contact.
5. The mechanical holding relay according to claim 4, wherein a circuit board is further arranged in the relay base, two travel switches are arranged on the circuit board, and triggering pieces matched with the travel switches are arranged at corresponding positions of the transmission gear.
6. The mechanical holding relay according to claim 1, wherein the gear transmission mechanism comprises a driving gear meshed with a first transmission gear, a second transmission gear is arranged on one side of the first transmission gear in a superposed manner, the second transmission gear is meshed with a third transmission gear far away from one side of the driving motor, a fourth transmission gear is arranged on one side of the third transmission gear in a superposed manner, the fourth transmission gear is meshed with a fifth transmission gear far away from one side of the first transmission gear, a sixth transmission gear is arranged on the fifth transmission gear in a superposed manner, the sixth transmission gear is meshed with a seventh transmission gear on one side, and the seventh transmission gear is coaxially arranged with the third transmission gear and the fourth transmission gear.
7. The mechanical holding relay according to claim 6, wherein the seventh transmission gear is provided with a superposed cam, the cam is matched with a rocker arranged in the relay base, the rocker is provided with a cam groove and is matched with the cam, mounting seats are respectively arranged on two side surfaces of the rocker, the mounting seats are provided with arc-shaped mounting parts coaxial with the rocker, the arc-shaped mounting parts are annularly arranged on the outer side of the rocker shaft and form arc-shaped mounting grooves with the rocker shaft, a movable contact plate is arranged in each arc-shaped mounting groove, a semicircular arc rotating part is arranged at a position, close to the end, of one side of the middle of the movable contact plate, and the movable contact plate is clamped in the arc-shaped mounting grooves through the semicircular arc rotating parts.
8. The mechanical holding relay according to claim 7, wherein a spring is further connected between the movable contact plate and the rocker, the spring is sleeved on the rocker shaft, one end of the spring is abutted to the mounting seat, and the other end of the spring is abutted to a position, close to the movable contact, of the movable contact plate.
9. The mechanical hold relay of claim 8, wherein a circuit board is further disposed in the relay base, two travel switches are disposed on the circuit board, and a trigger member matched with the travel switches is disposed at a corresponding position of the rocker.
10. A mechanical hold relay according to any one of claims 1-6, characterized in that an arc-extinguishing chamber is further provided in the relay base at the side of the stationary contact, an arc-extinguishing gate is provided in the arc-extinguishing chamber, and an arc striking plate is provided at the position at the side of the arc-extinguishing chamber.

Description

Mechanical holding relay Technical Field The utility model relates to the technical field of relays, in particular to a mechanical holding relay. Background A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is generally used in an automatic control circuit. The relay is actually an "automatic switch" that uses a smaller current to control a larger current, thus playing a role in automatic regulation, safety protection, switching circuits, etc. in the circuit. The relay is composed of a driving mechanism and a contact mechanism, wherein the contact mechanism generally comprises a static reed and a movable reed, and the driving mechanism drives the movable reed to move so as to realize the connection or disconnection of the contact mechanism. The prior motor relay mainly uses a motor to drive a movable reed to move through a transmission unit, the structural design of the prior motor relay is unreasonable, and when the motor stops rotating, the reaction of the movable reed often causes the transmission unit to reverse, so that the state of the relay is changed and fails, and the improvement of the service performance of the relay is not facilitated. Disclosure of utility model The utility model aims to overcome the defects in the prior art and provide a mechanical holding relay. In order to achieve the above purpose, the technical scheme of the utility model is to design a mechanical holding relay, which comprises a relay base and an upper cover in buckling connection, wherein a driving motor is arranged in the relay base, the driving motor is connected with at least two movable contact plates through a gear transmission mechanism, one ends of the movable contact plates are connected with conducting plates arranged on the relay base through flexible conducting pieces, the other ends of the movable contact plates are provided with movable contacts, the relay base is also provided with static plates, static contacts are arranged on the static plates, and the movable contacts are contacted with or separated from the static contacts. Further preferable technical scheme, the gear transmission mechanism comprises a worm, the worm is meshed with a worm wheel arranged in the relay base, a wheel shaft of the worm wheel is vertically arranged in the relay base, one side of the worm wheel is provided with a coaxial driving gear, the driving gear is meshed with a transmission gear arranged in the relay base, the transmission gear is arranged in the relay base far away from one side of the worm wheel of the worm, the transmission gear is composed of two coaxial semicircular teeth parts, the two semicircular teeth parts are overlapped together and are respectively positioned at two sides of a gear shaft, the transmission gear is vertically arranged in the relay base, and the driving gear is meshed with the semicircular teeth part positioned below; The relay base is arranged on one side, far away from the driving gear, of the driving gear, a driven gear is arranged in the relay base and meshed with the semicircular tooth part, located above the driving gear, of the driven gear, and the driven gear is provided with an arc-shaped tooth part with a circle smaller than 1/4. Further preferable technical scheme, be equipped with the mount pad on the both sides side of driven gear respectively, have on the mount pad with driven gear axle coaxial arc installation department, arc installation department ring is established driven gear axle's outside with driven gear axle forms arc mounting groove, every be equipped with one in the arc mounting groove movable contact plate, the position that the middle part one side of movable contact plate is close to the tip also is equipped with semicircle rotation portion, the movable contact plate is in through the semicircle rotation portion clamping on it in the arc mounting groove. According to the further preferred technical scheme, a spring is further connected between the movable contact plate and the driven gear, one end of the spring is abutted to the mounting seat, and the other end of the spring is abutted to the position, close to the movable contact, of the movable contact plate. Further preferable technical scheme, still be equipped with the circuit board in the relay base, be equipped with two travel switch on the circuit board, drive gear's relevant position is equipped with the trigger piece with travel switch assorted. Further preferable technical scheme, the gear transmission mechanism comprises a driving gear, the driving gear is meshed with a first transmission gear, a second transmission gear is arranged on one side of the first transmission gear and is meshed with a third transmission gear far away from one side of the driving motor, a fourth transmission gear is arranged on one side of the third transmission gear and is meshed with a fifth transmission gear far away from o