Hall control constant-speed mechanical switch type meat grinder

The Hall effect-controlled meat grinder with a mechanical switch and overcurrent protection addresses the inconvenience of fuse replacement by automatically shutting down the motor upon overload detection, enhancing user convenience and safety.

CN223096923UActive Publication Date: 2025-07-15FOSHAN SHUNDE HOMESION ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421746787.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-07-15
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The existing meat grinder protection device is protected by a fuse, and it is not convenient to replace it after disconnection.

Method used

The Hall-controlled, constant-speed mechanical switch meat grinder is used to detect the motor status through the Hall-control module, and the overcurrent detection unit is set to disconnect the motor circuit when the current is too high to avoid damaging the circuit, and the motor is controlled through a relay.

Benefits of technology

The constant speed control and overcurrent protection of the motor are realized to avoid motor damage and improve the convenience and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a Hall-control constant-speed mechanical switch type meat grinder, which relates to the field of meat grinders and comprises a power supply module, a Hall-control constant-speed mechanical switch type meat grinder, a Hall-control constant-speed mechanical switch type meat grinder, a Hall-control constant-speed mechanical switch type meat grinder and a Hall-control constant-speed mechanical switch type meat grinder, the motor module is used for rotation work of a motor; the switch control module is used for providing a control signal for the main control module through a manual switch and the motor module so as to realize motor power supply control and positive and negative rotation control; the main control module is used for controlling the working state of the motor module based on the control signal of the switch module; the relay control unit is connected with the power supply module, the power supply module is connected with the switch control module and the main control module, and the switch control module is connected with the motor module. Therefore, the work of the motor module is stopped, and the circuit is prevented from being damaged.
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Description

Technical Field

[0001] The utility model relates to the field of meat grinders, in particular to a meat grinder with a Hall-controlled constant-speed mechanical switch. Background Art

[0002] When the meat grinder works, it uses the shearing action formed by the rotating cutting blades and the holes on the orifice plate to cut the raw meat, and under the action of the screw extrusion force, continuously discharges the raw materials outside the machine.

[0003] The existing protection of meat grinders is often carried out through fuses. After the fuse is disconnected, it is necessary to replace the fuse again, which is not convenient enough and needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a meat grinder with a Hall-controlled constant-speed mechanical switch to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A meat grinder with a Hall-controlled constant-speed mechanical switch, comprising:

[0007] A power supply module for converting alternating current into direct current as the working power supply;

[0008] A motor module for the motor to rotate and work;

[0009] A switch control module for providing a control signal to the main control module through a manual switch and via the motor module to achieve motor power control and forward and reverse control;

[0010] A main control module for controlling the working state of the motor module based on the control signal of the switch module;

[0011] The power supply module is connected to the switch control module and the main control module, the switch control module is connected to the motor module, and the main control module is connected to the motor module.

[0012] As a further scheme of the utility model: the main control module includes:

[0013] A detection switch unit for detecting the switch state of the switch control module and feeding it back to the main control unit;

[0014] A relay control unit for receiving the control of the main control unit to control whether the relay works, and thus control whether the circuit where the motor module is located is conducting;

[0015] A constant-speed control unit for receiving the control of the main control unit to control the voltage and current conditions of the circuit where the motor module is located, so that the motor module rotates at a constant speed;

[0016] An overcurrent detection unit for detecting the magnitude of the current flowing through the motor module and feeding it back to the main control unit;

[0017] A main control unit for comprehensively controlling the operation of each unit;

[0018] The detection switch unit is connected to the main control module, the overcurrent detection unit is connected to the main control module, and the main control unit is connected to the relay control unit and the constant-speed control unit. The main control unit includes a chip MCU1, and the model of the chip MCU1 is MC32F7361AOH.

[0019] As a further solution of the present invention: The detection switch unit includes a resistor R5, a resistor R6, a capacitor C3, and a resistor R17. One end of the resistor R5 is connected to the motor module, the other end of the resistor R5 is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to one end of the capacitor C3, one end of the resistor R17, and the 4th pin of the chip MCU1. The other end of the capacitor C3 is grounded, and the other end of the resistor R17 is grounded.

[0020] As a further solution of the present invention: The relay control unit includes a relay RY1, a diode D5, a triode Q2, and a resistor R10. One end of the relay RY1 is connected to the negative electrode of the diode D5 and the 12V voltage, the other end of the relay RY1 is connected to the positive electrode of the diode D5 and the collector of the triode Q2, the emitter of the triode Q2 is grounded, the base of the triode Q2 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the 2nd pin of the chip MCU1.

[0021] As a further solution of the present invention: The constant-speed control unit includes an optocoupler U1 and a triac TR1. The first end of the triac TR1 is connected to the motor module and one end of a resistor R15, the second end of the triac TR1 is connected to one end of a capacitor C5, one end of a resistor R13, and the motor module, the other end of the resistor R15 is connected to the other end of the capacitor C5, the third end of the triac TR1 is connected to the fourth end of the optocoupler U1, the third end of the optocoupler U1 is connected to the other end of the resistor R13, the first end of the optocoupler U1 is connected to the 5V voltage, the second end of the optocoupler U1 is connected to one end of a resistor JR1, and the other end of the resistor JR1 is connected to the 3rd pin of the chip MCU1 through a resistor R11.

[0022] As a further solution of the present invention: The overcurrent detection unit includes a resistor R12 and a capacitor C4. One end of the resistor R12 is connected to the motor module, the other end of the resistor R12 is connected to one end of the capacitor C4 and the 6th pin of the chip MCU1, and the other end of the capacitor C4 is grounded.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is provided with an overcurrent detection unit. When the current flowing through the motor module is too large, the main control unit will control the relay control unit to stop working, so as to disconnect the circuit where the motor module is located and stop the motor module from working, avoiding damage to the circuit. Description of the Drawings

[0024] Figure 1 It is a circuit diagram of a meat grinder with a Hall control constant speed mechanical switch. Specific Embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1 , a meat grinder with a Hall control constant speed mechanical switch, comprising:

[0027] A power supply module for converting alternating current into direct current as the working power supply;

[0028] A motor module for the motor to rotate and work;

[0029] A switch control module for providing a control signal to the main control module through a manual switch via the motor module to achieve motor power control and forward and reverse control;

[0030] A main control module for controlling the working state of the motor module based on the control signal of the switch module;

[0031] The power supply module is connected to the switch control module and the main control module, the switch control module is connected to the motor module, and the main control module is connected to the motor module.

[0032] In a specific embodiment: Please refer to Figure 1 , in the power supply module, the voltage is converted into 12V direct current through a voltage regulator IC1 (model SDH8302S), and then converted into 5V voltage through a voltage regulator U1 (model 78L05) as the working power supply.

[0033] In the motor module, the motor MOTOR introduces voltage through both sides of OUT-N and OUTL to form a circuit;

[0034] In the switch module, the switches S1 and S2 are manually adjusted to change the working condition of the motor.

[0035] In this embodiment: Please refer to Figure 1, the main control module includes:

[0036] A detection switch unit, used to detect the switch state of the switch control module and feedback it to the main control unit;

[0037] A relay control unit, used to receive the control of the main control unit to control whether the relay works, and then control whether the circuit where the motor module is located is conducting;

[0038] A constant speed control unit, used to receive the control of the main control unit to control the voltage and current conditions of the circuit where the motor module is located, so that the motor module rotates at a constant speed;

[0039] An overcurrent detection unit, used to detect the magnitude of the current flowing through the motor module and feedback it to the main control unit;

[0040] The main control unit is used to comprehensively control the operation of each unit;

[0041] The detection switch unit is connected to the main control module, the overcurrent detection unit is connected to the main control module, the main control unit is connected to the relay control unit and the constant speed control unit. The main control unit includes a chip MCU1, and the model of the chip MCU1 is MC32F7361AOH.

[0042] In this embodiment: Please refer to Figure 1 , the detection switch unit includes a resistor R5, a resistor R6, a capacitor C3, and a resistor R17. One end of the resistor R5 is connected to the motor module, the other end of the resistor R5 is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to one end of the capacitor C3, one end of the resistor R17, and the 4th pin of the chip MCU1. The other end of the capacitor C3 is grounded, and the other end of the resistor R17 is grounded.

[0043] In the standby preparation state, there are 2 mechanical switches. One is the "power switch" (S1 is a self-locking switch), and the normal state is connected to the OFF position. The other is the "reverse switch" (S2 is normally closed with point b and disconnected from point a). The motor MOTOR is an AC motor and realizes "forward - reverse" rotation by switching the internal coil.

[0044] When the switch S1 changes from OFF to ON, the motor MOTOR signal reaches the 4th pin of the chip MCU1 through OUT-L, the resistor R5, and the resistor R6. The chip MCU1 obtains the conduction signal to control the operation of the relay control unit.

[0045] In this embodiment: Please refer to Figure 1The relay control unit includes a relay RY1, a diode D5, a transistor Q2, and a resistor R10. One end of the relay RY1 is connected to the cathode of the diode D5 and a 12V voltage, the other end of the relay RY1 is connected to the anode of the diode D5 and the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, the base of the transistor Q2 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to pin 2 of the chip MCU1.

[0046] Pin 2 of the chip MCU1 outputs a high level, causing the transistor Q2 to be turned on, and the relay RY1 is energized to work, controlling the switch in the motor MOTOR circuit to close, and the motor MOTOR is energized to work.

[0047] In this example: See Figure 1 The constant speed control unit includes an optocoupler U1 and a bidirectional thyristor TR1. The first end of the bidirectional thyristor TR1 is connected to the motor module and one end of the resistor R15. The second end of the bidirectional thyristor TR1 is connected to one end of the capacitor C5, one end of the resistor R13, and the motor module. The other end of the resistor R15 is connected to the other end of the capacitor C5. The third end of the bidirectional thyristor TR1 is connected to the fourth end of the optocoupler U1. The third end of the optocoupler U1 is connected to the other end of the resistor R13. The first end of the optocoupler U1 is connected to a 5V voltage. The second end of the optocoupler U1 is connected to one end of the resistor JR1. The other end of the resistor JR1 is connected to pin 3 of the chip MCU1 through the resistor R11.

[0048] During the rotation of the motor, its speed needs to be controlled. The motor's built-in Hall sensor speed signal is input to pin 7 of the chip MCU1. Based on the speed signal, pin 3 of the chip MCU1 outputs a variable signal to the optocoupler U1 (MOC3021) to control the bidirectional thyristor TR1 (BT138-800E) variable conduction. The motor's Hall speed signal is then fed back to pin 7 of MCU1, and the cycle continues to achieve the required constant variable signal, allowing the motor to operate at a constant speed.

[0049] In this example: See Figure 1 The overcurrent detection unit includes a resistor R12 and a capacitor C4. One end of the resistor R12 is connected to the motor module, the other end of the resistor R12 is connected to one end of the capacitor C4 and pin 6 of the chip MCU1, and the other end of the capacitor C4 is grounded.

[0050] During operation, the motor MOTOR circuit passes through resistor R16 (pit copper wire) for sampling. The greater the current, the higher the voltage value. The voltage signal is sent to pin 6 of chip MCU1 through resistor R12. When the current reaches 5A, pin 2 of chip MCU1 outputs a low level, causing transistor Q2 to cut off. Relay RY1 stops being disconnected, the circuit where the motor MOTOR is located is disconnected, and the motor MOTOR stops working, thus achieving protection. Switch S1 must be restored to OFF, and then pressing the switch to the "ON" position to power on will enable the next operation.

[0051] During operation, by changing the reverse switch S2 (connected to point a and disconnected from point b), the internal coil winding is switched. Pin 4 of chip MCU1 detects the switching state of the switch. Pin 2 of chip MCU1 (outputs a low level for about 5 seconds and then returns to a high level), controls relay RY1 to be disconnected for 5 seconds through transistor Q2 and then returns to being connected. The motor MOTOR completely stops rotating in the "forward" direction and then starts rotating in the "reverse" direction. When the reverse switch S2 is released (connected to point b and disconnected from point a), the internal coil winding is switched again. Pin 4 of chip MCU1 detects the switching state of the switch. Pin 2 of MCU1 (outputs a low level for about 5 seconds and then returns to a high level), controls relay RY1 to be disconnected for 5 seconds through transistor Q2 and then returns to being connected. The motor MOTOR completely stops rotating in the "reverse" direction and resumes normal operation in the "forward" direction.

[0052] The working principle of the present utility model is as follows: The power supply module is used to convert alternating current into direct current as the working power supply; the motor module is used for the motor to rotate and work; the switch control module is used to provide a control signal to the main control module through a manual switch and via the motor module to achieve motor power control and forward / reverse control; the main control module is used to control the working state of the motor module based on the control signal of the switch module.

[0053] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0054] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A Hall-controlled constant-speed mechanical switch type meat grinder, characterized in that, The Hall-controlled constant-speed mechanical switch type meat grinder includes: A power supply module for converting alternating current into direct current as the working power supply; A motor module for the motor to rotate and work; A switch control module for providing a control signal to the main control module through a manual switch via the motor module to achieve motor power control and forward and reverse control; A main control module for controlling the working state of the motor module based on the control signal of the switch module; The power supply module is connected to the switch control module and the main control module, the switch control module is connected to the motor module, and the main control module is connected to the motor module; The main control module includes: A detection switch unit for detecting the switch state of the switch control module and feeding it back to the main control unit; A relay control unit for receiving the control of the main control unit to control whether the relay works, and thus control whether the circuit where the motor module is located is conducting; A constant-speed control unit for receiving the control of the main control unit to control the voltage and current conditions of the circuit where the motor module is located, so that the motor module rotates at a constant speed; An overcurrent detection unit for detecting the magnitude of the current flowing through the motor module and feeding it back to the main control unit; A main control unit for comprehensively controlling the work of each unit; The detection switch unit is connected to the main control module, the overcurrent detection unit is connected to the main control module, the main control unit is connected to the relay control unit and the constant-speed control unit, and the main control unit includes a chip MCU1, and the model of the chip MCU1 is MC32F7361AOH.

2. The Hall-controlled constant-speed mechanical switch type meat grinder according to claim 1, characterized in that, The detection switch unit includes a resistor R5, a resistor R6, a capacitor C3, and a resistor R17. One end of the resistor R5 is connected to the motor module, the other end of the resistor R5 is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to one end of the capacitor C3, one end of the resistor R17, and the 4th pin of the chip MCU1. The other end of the capacitor C3 is grounded, and the other end of the resistor R17 is grounded.

3. The Hall-controlled constant-speed mechanical switch type meat grinder according to claim 1, characterized in that, The relay control unit includes a relay RY1, a diode D5, a triode Q2, and a resistor R10. One end of the relay RY1 is connected to the negative electrode of the diode D5 and the 12V voltage, the other end of the relay RY1 is connected to the positive electrode of the diode D5 and the collector of the triode Q2, the emitter of the triode Q2 is grounded, the base of the triode Q2 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the 2nd pin of the chip MCU1.

4. The Hall-controlled constant-speed mechanical switch type meat grinder according to claim 1, characterized in that, The constant-speed control unit includes an optocoupler U1 and a triac TR1. The first end of the triac TR1 is connected to the motor module and one end of a resistor R15, the second end of the triac TR1 is connected to one end of a capacitor C5, one end of a resistor R13, and the motor module, the other end of the resistor R15 is connected to the other end of the capacitor C5, the third end of the triac TR1 is connected to the fourth end of the optocoupler U1, the third end of the optocoupler U1 is connected to the other end of the resistor R13, the first end of the optocoupler U1 is connected to the 5V voltage, the second end of the optocoupler U1 is connected to one end of a resistor JR1, and the other end of the resistor JR1 is connected to the 3rd pin of the chip MCU1 through a resistor R11.

5. The Hall-controlled constant-speed mechanical switch type meat grinder according to claim 1, characterized in that, The overcurrent detection unit includes a resistor R12 and a capacitor C4. One end of the resistor R12 is connected to the motor module, and the other end of the resistor R12 is connected to one end of the capacitor C4 and the 6th pin of the chip MCU1. The other end of the capacitor C4 is grounded.