CN204803574U - Washing machine's stifled transfering from one department to another that prevent is united - Google Patents

Abstract

An anti-stall system of a washing machine, comprising a motor 3, a motor pulley 6, a transmission belt 7 and a deceleration clutch 8, is characterized in that a speedometer 4 is installed in the anti-stall system of the washing machine, and the speedometer 4 and the magnetic body 5 are used in pairs, the speed detector 4 is installed on the motor 3 or the reduction clutch 8, and the magnetic body 5 is installed on the motor pulley 6 or the reduction clutch 8. The utility model adds a speed measuring module in the transmission system. When the machine is normal, the data measured by the speed measuring device is recognized by the program controller and continues to work normally. The program controller processes and sends the motor to run in reverse to relieve the rotation. If the rotation cannot be resolved after repeated reversals, the machine will stop running and give an alarm, which effectively protects the motor and other electrical components, as well as the program controller.

Description

Anti-blocking system of a washing machine

technical field

The utility model belongs to the field of washing machines, in particular to an anti-blocking system and program control of a washing machine.

Background technique

The pulsator washing machine often has a stall phenomenon, especially when it is fully loaded, the clothes press the pulsator, so that the motor of the washing machine is completely blocked, the temperature of the motor rises sharply, the motor burns out, or the capacitor burns out, or the transmission system gear damage, etc.

Sometimes, during the washing process of the washing machine, the laundry is entangled into a ball, or is clamped between the pulsator and the tub, and the clothes are stuck between the pulsator and the pulsator of the multi-pulse washing machine, and the working load increases rapidly, and then The transmission torque increases rapidly, the motor current of the washing machine increases rapidly, and the phenomenon of motor rotation occurs. If the motor burns out, or other electrical components burn out, the deceleration clutch will also be damaged.

Contents of the invention

In order to solve the above problems, an anti-lock system and program control of a washing machine are designed.

An anti-stall system of a washing machine, comprising a motor 3, a motor pulley 6, a transmission belt 7 and a deceleration clutch 8, is characterized in that a speedometer 4 is installed in the anti-stall system of the washing machine, and the speedometer 4 and the magnetic body 5 are used in pairs, the speed detector 4 is installed on the motor 3 or the reduction clutch 8, and the magnetic body 5 is installed on the motor pulley 6 or the reduction clutch 8.

Further, the minimum distance between the speed detector 4 and the magnetic body 5 is between 3 millimeters and 6 millimeters, and the direction of the speed detector 4 is parallel to the tangential direction of the rotation of the motor pulley 6 .

Further, the speedometer 4 is connected with the program controller 1 through the data transmission line 2 .

A program control for a washing machine, comprising the anti-blocking system of a washing machine according to claim 1, characterized in that the program controller 1 is connected to the speedometer 4 through the data transmission line 2, and the current pulse is transmitted to the speedometer 4 during the washing process, and the current pulse is collected regularly The electrical signal transmitted by the speedometer 4.

Further, when the program controller 1 receives the motor 3 to stop running or a signal to rotate, that is, to send the motor 3 reverse operation command, when the motor rotation signal cannot be detected in the continuous reverse direction for many times, it sends out the program command to stop the operation , and send out a buzzer alarm signal.

The technical effect of the utility model: a speed measuring system is installed in the power transmission system of the washing machine to test whether the washing machine is running normally. The operation of the washing machine is processed. First, the motor runs in the reverse direction. Because the clothes are stuck, it occurs between the pulsator and the bucket, and between the pulsator and the pulsator of the multi-wave washing machine. The space narrows locally and wedges appear. , if the pulsator is reversed, it can effectively relieve the stuck state. If it is reversed many times and is still stuck, the machine will stop running and make a buzzing sound. Manual contact is required to solve the problem, which effectively protects the motor and the machine. Other electrical devices, and program controllers.

Description of drawings

Fig. 1 is a kind of anti-stall system and program control structural diagram of washing machine;

Among them, program controller 1, data transmission line 2, motor 3, speed detector 4, magnetic body 5, motor pulley 6, transmission belt 7, deceleration clutch 8.

Detailed ways

As shown in FIG. 1 , an anti-stall system of a washing machine, the speed measuring system is composed of a speed measuring device 4 , a magnetic body 5 , a data transmission line 2 , and a program controller 1 . Said tachometer 4 is installed on the relative static position of motor 3 or deceleration clutch 8 , and close to the rotating part, and said magnetic body 5 is then installed on the motor pulley 6 of motor 3 or on the pulley of deceleration clutch 8 . The speedometer is connected with the program controller 1 through the data transmission line 2 .

The measuring direction of the tachometer 4 is the same as the rotation tangent direction of the motor pulley 6. The tachometer 4 is installed on the fixed end cover of the motor 3, and the magnetic body 5 is installed on the motor pulley 6. When the motor pulley 6 rotates, the magnetic body When 5 is directly below the speedometer 4, the distance between the two is 3 to 6 millimeters. When the motor 3 is running, the motor pulley 6 rotates, so that the magnetic body 5 also rotates with the motor pulley 6. When the magnetic body 5 is close to the speedometer 4, the speedometer 4 receives the signal and sends it to the program control through the data transmission line 2. Device 1.

A program control of a washing machine, the speed detector 4 is a three-terminal speed detector, one of which is a power supply terminal, and the program controller 1 provides a low voltage of 5 volts. The second terminal is the neutral line, and the third terminal output terminal. When the motor 3 rotates, each time the magnetic body 5 on the motor pulley 6 approaches the speedometer 4, the third terminal output terminal of the speedometer 4 collects a The pulse signal is transmitted to the program controller 1 through the data transmission line 2.

The program controller 1 provides voltage to the speedometer, collects pulse signals from the speedometer, processes them, and feeds them back to the motor and other electrical devices. For example, the rotation speed of the motor 3 is 1380 rpm, and there are 23 pulses per second. If the program controller 1 cannot detect the electric pulse provided by the speedometer 4 within 0.1 seconds of the program setting, the motor will be reversed. If the washing machine is washed In the normal program process, the forward movement is 2 seconds, the stop is 1 second, and then reversed for 2 seconds, and the reciprocating operation, then in the case of a rotation during the washing process, the speedometer 4 does not provide a pulse signal to the program controller 1, and the program controller That is to say, the instruction is issued, and the instruction of reverse rotation of the motor is executed within 0.1 seconds. When the motor rotation signal cannot be detected in the continuous reverse rotation for many times, an instruction to stop the program operation is issued, and a buzzer alarm signal is issued. If in the normal washing process, electric pulses can be detected every 0.1 seconds, that is, the machine is running normally.

During the washing process, the program is generally set to rotate forward for a few seconds, stop for a second, and then reverse for a few seconds, reciprocating cycle. The same is true for the program setting of the present invention, only one more condition is added, that is, the program controller 1 continuously receives the signal pulse from the speedometer 4, and the program is normally executed as before. When the signal pulse comes, the program gives the command to rotate the motor in the opposite direction. The protocol time can be set between 0.1 second and 1 second, which can be set according to the sensitivity requirements of the machine, that is, the signal pulse cannot be received within 0.1 second to 1 second. , that is, inversion. If the machine continues to rotate continuously, that is, when the forward direction rotates continuously and the reverse direction also rotates continuously, the motor repeatedly switches forward and reverse frequently. The switching frequency is 0.1 second to 1 second as set above, and the program is set within a certain period of time, for example Set it to 1 minute, the motor changes direction frequently, and the program controller issues a command to stop the machine and buzz the alarm. Like this machine can not occur long-term current overload gambling, protects motor 3, and other electrical components from being damaged, also protects power transmission systems such as deceleration clutch 8 etc. simultaneously.

Through the test, when the machine is running normally, the motor rotates forward for a few seconds, stops for 1 second, and then reverses for a few seconds, and the cycle goes on and on. When the magnetic body 5 is removed from the motor pulley 6, the speedometer 4 cannot detect the signal, and the motor Then in 0.1 second to 1 second, forward rotation and reverse rotation are repeatedly switched, and in about 1 minute, the motor 3 stops running, and the program controller 1 buzzes. The magnetic body 5 is installed on the motor pulley 6 again, the program is restarted, and the machine is normally carried out again.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (3)

1. the blocking rotation system of a washing machine, comprise motor (3), electrical machine belt pulley (6), transmission belt (7) and speed-reducing clutch (8), it is characterized in that, in the blocking rotation system of washing machine, a velometer (4) is installed, velometer (4) and magnetic (5) match, velometer (4) is arranged on motor (3) or speed-reducing clutch (8), and magnetic (5) is arranged on electrical machine belt pulley (6) or speed-reducing clutch (8).

2. the blocking rotation system of washing machine according to claim 1, is characterized in that, the minimum range of velometer (4) and magnetic (5) is between 3 millimeters to 6 millimeters, and the direction of velometer (4) is parallel with the tangential direction that electrical machine belt pulley (6) rotates.

3. according to the blocking rotation system of the washing machine of claim 1 or 2, it is characterized in that, velometer (4) is connected with cyclelog (1) by data line (2).