CN214380058U

CN214380058U - Motor control circuit based on Hall switch element

Info

Publication number: CN214380058U
Application number: CN202120615822.6U
Authority: CN
Inventors: 柳亚强; 潘德锋
Original assignee: Quanzhou Giant Alarm Syetem Co ltd
Current assignee: Quanzhou Giant Alarm Syetem Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-10-08
Anticipated expiration: 2031-03-26

Abstract

The utility model relates to the technical field of motor control, in particular to a motor control circuit based on a Hall switch element, which comprises a power input port, the Hall switch element, a power conversion circuit, a relay drive circuit, a relay switch circuit and a motor; the power input port is electrically connected with a power end of the motor through the relay switch circuit, the power input port is electrically connected with an input end of the power conversion circuit, the Hall switch element, the relay switch circuit and the relay drive circuit are respectively electrically connected with an output end of the power conversion circuit, the Hall switch element is electrically connected with the relay drive circuit, and the relay drive circuit is electrically connected with the relay switch circuit. When the Hall switch element detects the change of a magnetic field, the motor control circuit based on the Hall switch element intelligently controls the motor to stop.

Description

Motor control circuit based on Hall switch element

Technical Field

The utility model relates to a motor control technical field especially relates to a motor control circuit based on hall switching element.

Background

The vertical hinged door is one of the commonly used door body types, and has the advantages of simple structure, convenience in manufacturing and flexibility in opening and closing. The vertical hinged door is pivoted between one side of the door body and the door frame, and the door body rotates around the upper and lower pivoting parts by pushing the door body at the other side, so that the vertical hinged door is opened or closed.

The applicant filed a new swing arm type vertical hinged door machine (chinese patent application No. 2020221105856) in 30/09/2020, as shown in fig. 1, the new swing arm type vertical hinged door machine includes a door opening machine box 1, a mounting plate 2 and a swing arm 3, the door opening machine box 1 is disposed on a wall (not shown in the figure, and a person skilled in the art should understand the mounting manner of the door opening machine box 1 on the wall), the door opening machine box 1 is covered on the mounting plate 2, a clutch type speed reducer 22 and a motor 600 in transmission connection with an input shaft of the clutch type speed reducer 22 are disposed in the door opening machine box 1 on the mounting plate 2, an output shaft of the clutch type speed reducer 22 penetrates through the mounting plate 2 to be connected with one end of the swing arm 3 (not shown in the figure is a connection structure of the output shaft of the clutch type speed reducer 22 and the swing arm 3, but a person skilled in the art should understand the mounting structure), the other end of the swing arm 3 is mounted on a door body (not shown in the figure); the clutch type speed reducer 22 comprises a clutch shaft 23 used for controlling the clutch action of the clutch type speed reducer 22, a through hole 11 is formed in the door opener box 1, the clutch shaft 23 penetrates out of the through hole 11, a user can manually operate the clutch shaft 23 to enable the clutch type speed reducer 22 to open or close a clutch, the clutch shaft 23 is operated to open the clutch type speed reducer 22 to perform clutch when power is off, and the door is conveniently pushed to be opened and closed manually. When the power is on, the clutch shaft 23 needs to be operated to close the clutch of the clutch type speed reducer 22, and at the moment, the motor 600 drives the output shaft of the clutch type speed reducer 22 to rotate positively and negatively, so that the swing arm 3 is driven to swing to realize door opening and closing.

The lower surface of mounting panel 2 is provided with first limit stop 4 and second limit stop 5, and when motor 600 driven output shaft was rotatory, made swing arm 3 rotate to first limit stop 4 positions, swing arm 3 supported and leaned on at first stop 4. When the output shaft driven by the motor 600 rotates to make the swing arm 3 rotate to the position of the second limit stop 5, the swing arm 3 abuts against the second stop 5.

The applicant points out that when the door body is opened or closed in place, the intelligent control motor 600 needs to be stopped, the novel swing arm type vertical hinged door machine is provided with the first limit stop 4 and the second limit stop 5 through the lower surface on the mounting plate, and when the arm rotates 2 to the position of the first limit stop 4 or the second limit stop 5, the control motor 600 is stopped. This kind of control mode, in the use of reality, because when long-term switch door, swing arm 3 collision and extrusion first limit stop 4 or two limit stop 5 can lead to the fact wearing and tearing to swing arm 3 collision first limit stop 4 or two limit stop 5 can send the collision sound noise.

In view of the above, the applicant further improves the motor control circuit when the door body is opened or closed in place.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a motor control circuit based on hall switching element detects when magnetic field changes as hall switching element, and the intelligent control motor shuts down.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a motor control circuit based on a Hall switch element comprises a power input port, the Hall switch element, a power conversion circuit, a relay drive circuit, a relay switch circuit and a motor;

the power input port is electrically connected with a power end of the motor through the relay switch circuit, the power input port is electrically connected with an input end of the power conversion circuit, the Hall switch element, the relay switch circuit and the relay drive circuit are respectively electrically connected with an output end of the power conversion circuit, the Hall switch element is electrically connected with the relay drive circuit, and the relay drive circuit is electrically connected with the relay switch circuit.

Further, the power conversion circuit comprises a DF08S chip, an electrolytic capacitor E1, a non-polar capacitor C3, a 78M05 chip and a resistor R2; the second end of the DF08S chip is a positive end, the fourth end of the DF08S chip is a negative end, and the first end and the third end of the DF08S chip are alternating current input ends; the power input port is electrically connected with a first end and a third end of a DF08S chip, a first end of the resistor R2 and a positive end of the electrolytic capacitor E1 are respectively and electrically connected with a second end of the DF08S chip, a second end of the resistor R2 is electrically connected with an IN end of the 78M05 chip, an OUT end of the 78M05 chip is electrically connected with a first end of the nonpolar capacitor C3, a fourth end of the DF08S chip, a negative end of the electrolytic capacitor E1, a GND end of the 78M05 chip and a second end of the nonpolar capacitor C3 are respectively grounded;

the relay switch circuit comprises a relay KM1 and a diode D1; the power input port is electrically connected with the motor through a relay KM1 to form a conductive loop, the diode D1 is connected with the coil end of the relay KM1 in parallel, and the cathode end of the diode D1 is electrically connected with the second end of the DF08S chip;

the relay driving circuit comprises a triode Q1, an MS11F121 chip, a resistor R1, a resistor R3, a non-polar capacitor C1 and a non-polar capacitor C2; the first end of the resistor R3 and the MS11F121 chip are respectively electrically connected with an emitter of a Hall switch element, the second end of the resistor R3, the first end of the nonpolar capacitor C1, the first end of the nonpolar capacitor C2, the base of the Hall switch element and the VDD end of the MS11F121 chip are respectively electrically connected with the first end of the capacitor C3, the collector of the Hall switch element is grounded, the second end of the capacitor C2 is grounded, the second end of the nonpolar capacitor C1 and the VSS end of the MS11F121 chip are respectively grounded, the MS11F121 chip is electrically connected with the base of a triode Q1 through a resistor R1, the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is electrically connected with the positive electrode of a diode D1.

By adopting the technical scheme, the beneficial effects of the utility model are that: when the Hall switch element detects the change of a magnetic field, the motor control circuit based on the Hall switch element intelligently controls the motor to stop. Specifically, an alternating current direct current power supply input from a power supply input port supplies power to the whole circuit through a DF08S chip (rectifier bridge), after the current is limited through a resistor R2, a 5VDC power supply is output through a 78M05 chip (voltage regulator tube) and a nonpolar capacitor C3 to supply power to a Hall switch element. The resistor R2 can effectively ensure the stable operation of the circuit and no scalding. The nonpolar capacitor C2 effectively guarantees the power supply of the Hall switch element. The resistor R3 is a pull-up resistor, the reliability of the output signal of the Hall switch element is improved, when the Hall switch element senses the change of a magnetic field, the Hall switch element outputs an electric signal to the MS11F121 chip, and the control relay KM1 disconnects the power supply of the motor.

Drawings

Fig. 1 is a schematic structural diagram of a swing arm type vertical hinged door machine in the prior art;

fig. 2 is a schematic circuit diagram of a main control circuit according to a first embodiment of the present invention;

fig. 3 is an exploded view of a swing arm door opener according to the second embodiment of the present invention;

fig. 4 is a schematic structural view of a swing arm door opener according to a second embodiment of the present invention;

fig. 5 is a schematic structural diagram of a synchronous turntable, a first magnetic block and a second magnetic block according to a second embodiment of the present invention;

fig. 6 is a schematic structural view of the swing arm door opener of the second embodiment of the present invention installed on the door body and the wall body.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

The first embodiment,

Referring to fig. 2, the present embodiment provides a motor control circuit based on a hall switching element, which is characterized in that: the hall switching element 100, the power input port 200, the power conversion circuit 300, the relay driving circuit 400, the relay switching circuit 500, and the motor 600 are included.

In this embodiment, the power conversion circuit 300 includes a DF08S chip, an electrolytic capacitor E1, a nonpolar capacitor C3, a 78M05 chip, and a resistor R2; the second end of the DF08S chip is a positive end, the fourth end of the DF08S chip is a negative end, and the first end and the third end of the DF08S chip are alternating current input ends; the power input port is electrically connected with a first end and a third end of a DF08S chip, a first end of the resistor R2 and a positive end of the electrolytic capacitor E1 are respectively and electrically connected with a second end of the DF08S chip, a second end of the resistor R2 is electrically connected with an IN end of the 78M05 chip, an OUT end of the 78M05 chip is electrically connected with a first end of the nonpolar capacitor C3, and a fourth end of the DF08S chip, a negative end of the electrolytic capacitor E1, a GND end of the 78M05 chip and a second end of the nonpolar capacitor C3 are respectively grounded.

The relay switch circuit 500 comprises a relay KM1 and a diode D1; the power input port is electrically connected with the motor 600 through a relay KM1 to form a conductive loop, the diode D1 is connected with the coil end of the relay KM1 in parallel, and the cathode end of the diode D1 is electrically connected with the second end of the DF08S chip.

The relay driving circuit 400 comprises a triode Q1, an MS11F121 chip, a resistor R1, a resistor R3, a non-polar capacitor C1 and a non-polar capacitor C2; the first end of the resistor R3 and the chip MS11F121 are electrically connected to the emitter of the Hall switch element 100, the second end of the resistor R3, the first end of the nonpolar capacitor C1, the first end of the nonpolar capacitor C2, the base of the Hall switch element 100 and the VDD end of the chip MS11F121 are electrically connected to the first end of the capacitor C3, the collector of the Hall switch element 100 is grounded, the second end of the capacitor C2 is grounded, the second end of the nonpolar capacitor C1 and the VSS end of the chip MS11F121 are grounded, the chip MS11F121 is electrically connected to the base of the triode Q1 through the resistor R1, the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is electrically connected to the positive terminal of the diode D1.

When the motor 600 is powered on for several seconds (for example, 1.5s), and the hall switching element 100 detects the change of the magnetic field, the motor 600 is controlled to stop. Specifically, an alternating current direct current power supply input from a power supply input port supplies power to the whole circuit through a DF08S chip (rectifier bridge), after current is limited through a resistor R2, a 5VDC power supply is output through a 78M05 chip (voltage regulator tube) and a nonpolar capacitor C3 to supply power to the Hall switching element 100 and the whole circuit. The resistor R2 can effectively ensure the stable operation of the circuit and no scalding. The nonpolar capacitor C2 effectively ensures the power supply of the hall switching element 100. The resistor R3 is a pull-up resistor, the reliability of the output signal of the Hall switch element 100 is improved, when the Hall switch element 100 senses the change of the magnetic field, the Hall switch element 100 outputs an electric signal to the MS11F121 chip, and the MS11F121 chip controls the conduction of the triode Q1 to enable the relay KM1 to cut off the power supply of the motor 600.

Example II,

Referring to fig. 3-6, the present embodiment provides a swing arm type door opener applying the motor control circuit based on hall switching elements.

The swing arm type door opener comprises a door opener box 1, a mounting plate 2 and a swing arm 3. The mounting plate 2 is provided with a clutch type speed reducer 22 and a motor 600 in transmission connection with an input shaft (not shown in the figure, but it should be understood by those skilled in the art that the clutch type speed reducer 22 is connected with the motor 600) of the clutch type speed reducer 22. The door opening machine box 1 is covered on the mounting plate 2, and the clutch type speed reducer 22 and the motor 600 are covered in the door opening machine box 1. The door operator case 1 is arranged on the wall 700; an output shaft of the clutch type speed reducer 22 penetrates through the mounting plate 2 to be connected with a first end of the swing arm 3, and a second end of the swing arm 3 is mounted on the door body 800. The structure of the swing arm type door opener is the same as that of a novel swing arm type vertical hinged door opener applied in 09 and 30 of 2020 and the present application date (Chinese patent application number 2020221105856).

The swing arm 3 is characterized in that a synchronous turntable 4 is fixedly arranged at the first end of the swing arm, a mounting groove 41 is formed in the synchronous turntable 4, and a first magnetic block 42 and a second magnetic block 43 are arranged in the mounting groove 41. The first magnetic block 42 includes a first magnetic bolt 421 and a first nut 422, the first magnetic bolt 421 is inserted into the mounting groove 41, and the first magnetic bolt 421 is locked in the mounting groove 41 by the first nut 422. The second magnetic block 43 includes a second magnetic bolt 431 and a second nut 432, the second magnetic bolt 431 is inserted into the mounting groove 41, and the second magnetic bolt 431 is locked in the mounting groove 41 by the second nut 432.

The hall switching element 100 is provided on the mounting plate 2.

After the motor 600 is energized for several seconds, the hall switching element 100 starts detecting whether the magnetic field changes. For example, after the motor 600 is energized for 1.5s, until the synchronous turntable 4 on the swing arm 3 rotates to position the first magnetic block 42 directly above the hall switching element 100, the door body 800 is closed in place, the hall switching element 100 sends an electrical signal to the relay switching circuit 500 through the relay driving circuit 400, and the relay switching circuit 500 controls the power supply of the motor 600 to be disconnected.

Or after the motor 600 is powered on for 1.5s, when the synchronous turntable 4 on the swing arm 3 rotates to enable the second magnetic block 43 to be located right above the hall switching element 100, the door body 800 is opened in place, an electric signal sent by the hall switching element 100 is transmitted to the relay switching circuit 500 through the relay driving circuit 400, and the relay switching circuit 500 controls the power supply of the motor 600 to be disconnected.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a motor control circuit based on hall switching element which characterized in that: the power supply switching circuit comprises a power supply input port, a Hall switch element, a power supply switching circuit, a relay driving circuit, a relay switch circuit and a motor;

2. The hall switching element-based motor control circuit of claim 1, wherein:

the power conversion circuit comprises a DF08S chip, an electrolytic capacitor E1, nonpolar capacitors C3 and 78M05 chips and a resistor R2; the second end of the DF08S chip is a positive end, the fourth end of the DF08S chip is a negative end, and the first end and the third end of the DF08S chip are alternating current input ends; the power input port is electrically connected with a first end and a third end of a DF08S chip, a first end of the resistor R2 and a positive end of the electrolytic capacitor E1 are respectively and electrically connected with a second end of the DF08S chip, a second end of the resistor R2 is electrically connected with an IN end of the 78M05 chip, an OUT end of the 78M05 chip is electrically connected with a first end of the nonpolar capacitor C3, a fourth end of the DF08S chip, a negative end of the electrolytic capacitor E1, a GND end of the 78M05 chip and a second end of the nonpolar capacitor C3 are respectively grounded;

the relay driving circuit comprises a triode Q1, an MS11F121 chip, a resistor R1, a resistor R3, a non-polar capacitor C1 and a non-polar capacitor C2; the first end of the resistor R3 and the chip MS11F121 are electrically connected with the emitter of the Hall switch element respectively, the second end of the resistor R3, the first end of the nonpolar capacitor C1, the first end of the nonpolar capacitor C2, the base of the Hall switch element and the VDD end of the chip MS11F121 are electrically connected with the first end of the capacitor C3 respectively, the collector of the Hall switch element is grounded, the second end of the capacitor C2 is grounded, the second end of the nonpolar capacitor C1 and the VSS end of the chip MS11F121 are grounded respectively, the chip MS11F121 is electrically connected with the base of the triode Q1 through a resistor R1, the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is electrically connected with the positive electrode of the diode D1.