CN207766166U

CN207766166U - A kind of double magnetic coder control devices of DC brushless motor

Info

Publication number: CN207766166U
Application number: CN201820101423.6U
Authority: CN
Inventors: 钟伟
Original assignee: Shenzhen City Days Haoway Technology Co Ltd
Current assignee: Shenzhen City Days Haoway Technology Co Ltd
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2018-08-24
Anticipated expiration: 2028-01-19

Abstract

The utility model discloses a kind of double magnetic coder control devices of DC brushless motor, including outer housing, outer housing front end face is equipped with LED display, alarm lamp is equipped with below LED display, shell intracoelomic cavity is equipped with control circuit board, control circuit board is equipped with MCU, the first magnetic coder, the second magnetic coder, 485 communication modules, voltage/current acquisition module, temperature collecting module, display module, alarm module and three phase full bridge drive module, the utility model structural principle is simple, strong antijamming capability, control accuracy are high.

Description

A kind of double magnetic coder control devices of DC brushless motor

Technical field

The utility model is related to brushless motor control technology field, the double magnetic coder controls of specially a kind of DC brushless motor Device processed.

Background technology

Brshless DC motor is made of motor body and driver, is a kind of typical electromechanical integrated product.Due to Brushless direct current motor is run with autocontrol, so will not turn as the synchronous motor of heavy load starting under frequency control Another plus startup winding, will not generate oscillation and step-out in load sudden change on son.The brushless direct current motor of Small And Medium Capacity Permanent magnet mostly uses the rare-earth Nd-Fe-B material of high energy product now.Therefore, the volume ratio of rare earth permanent magnetic brushless motor is the same as appearance Amount threephase asynchronous reduces a seat No..

The motor control assembly control accuracy used in current service class robot is low, and control cost is high, anti-interference energy Force difference has much room for improvement.

Utility model content

It is above-mentioned to solve the purpose of this utility model is to provide a kind of double magnetic coder control devices of DC brushless motor The problem of being proposed in background technology.

To achieve the above object, the utility model provides the following technical solutions：A kind of double magnetic coders of DC brushless motor Control device, including outer housing, the outer housing front end face are equipped with LED display, alarm are equipped with below the LED display screens Indicator light, the shell intracoelomic cavity are equipped with control circuit board, and the control circuit board is equipped with MCU, the first magnetic coder, second Magnetic coder, 485 communication modules, voltage/current acquisition module, temperature collecting module, display module, alarm module and three-phase are complete Bridge drive module；The MCU is separately connected the first magnetic coder, the second magnetic coder, voltage/current acquisition module, temperature and adopts Collect module, display module, alarm module, the MCU connects host computer by 485 communication modules, and the MCU passes through three phase full bridge Drive module connects brushless motor.

Preferably, the voltage/current acquisition module include operational amplifier A, operational amplifier B, operational amplifier C and Operational amplifier D, the operational amplifier A electrode input end are separately connected resistance A and the one end resistance B, negative input difference The one end connection resistance C, the one end resistance D and the one end capacitance C, output end are separately connected the capacitance C other ends, the resistance D other ends, resistance The one end E and the one end resistance F, resistance F other ends connection one end capacitance D are simultaneously grounded；

The operational amplifier B electrode input ends are separately connected the one end resistance G and the one end resistance H, negative input difference The one end connection resistance I, the one end capacitance E and the one end resistance J, output end are separately connected the capacitance E other ends, the resistance J other ends, electricity Resistance one end K connects the one end capacitance F with the resistance L other ends and is grounded；

The operational amplifier C electrode input ends are separately connected the one end resistance M and the one end resistance N, negative input difference The one end resistance O, the one end resistance P and the one end capacitance G are connected, it is another that the resistance O other ends are separately connected the resistance I other ends, resistance C End, the operational amplifier C output ends are separately connected the resistance P other ends, the capacitance G other ends, the one end resistance Q and the one end resistance R, The resistance R other ends connect the one end capacitance H and are grounded；

The operational amplifier D electrode input ends are separately connected the one end resistance S, the one end resistance T and the one end capacitance I, cathode Input terminal is separately connected the resistance N other ends, the resistance H other ends, the resistance B other ends and operational amplifier D output ends, the capacitance The I other ends connect the resistance T other ends and are grounded.

Preferably, 485 communication module includes RS485 chips and surge protection chip, the ends RS485 chips RO The one end resistance U is connected, the resistance U other ends are grounded by capacitance J, and the ends RS485 chips RE and the ends DE are all connected with resistance V mono- End, the one end the ends the RS485 chips DI connection resistance W, the ends VCC connect the one end capacitance K, and capacitance K other ends ground connection is described RS485 chip side a and bs are all connected with surge protection chip, the ends the RS485 chips GND ground connection.

Compared with prior art, the utility model has the beneficial effects that：

(1) the utility model structural principle is simple, strong antijamming capability, and control accuracy is high；Wherein, 485 communications of use Module can greatly improve communication anti-interference.

(2) the voltage/current acquisition module that the utility model uses can realize the purpose being amplified to small signal, into One step improves control accuracy.

(3) the three phase full bridge drive module that the utility model uses controls brushless motor, so that its efficiency is maximized.

Description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model control principle block diagram；

Fig. 3 is the utility model voltage/current acquisition module schematic diagram；

Fig. 4 is 485 communication module schematic diagram of the utility model.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of double magnetic coder controls of DC brushless motor Device, including outer housing 1,1 front end face of the outer housing are equipped with LED display 2, and 2 lower section of the LED display screens is equipped with alarm Indicator light 3,1 inner cavity of the outer housing are equipped with control circuit board 4, and the control circuit board 4 is equipped with MCU5, the first magnetic coder 6, the second magnetic coder 7,485 communication modules 8, voltage/current acquisition module 9, temperature collecting module 10, display module 11, report Alert module 12 and three phase full bridge drive module 13；The MCU5 is separately connected the first magnetic coder 6, the second magnetic coder 7, electricity Pressure/current acquisition module 9, temperature collecting module 10, display module 11, alarm module 12, the MCU5 pass through 485 communication moulds Block 8 connects host computer 14, and the MCU5 connects brushless motor 15 by three phase full bridge drive module 13, and the three phase full bridge of use drives Dynamic model block controls brushless motor, so that its efficiency is maximized；First magnetic coder 6, the second magnetic coder 7 are all made of model For the Magnetic Sensor of TLE5012B-E1000.It is using the advantage of Dual-encoder, one of magnetic coder is detecting electricity Precision data is accurately controlled when machine is run, while ensureing that output shaft obtains accurate output position again.

In the utility model, voltage/current acquisition module 9 includes operational amplifier A 1c, operational amplifier B2c, operation Amplifier C3c and operational amplifier D4c, the operational amplifier A 1c electrode input ends are separately connected resistance A1a and resistance B2a One end, negative input are separately connected the one end resistance C3a, the one end resistance D4a and the one end capacitance C3b, output end and are separately connected electricity Hold the C3b other ends, the resistance D4a other ends, the one end resistance E5a and the one end resistance F6a, the resistance F6a other ends connect capacitance D4b mono- It holds and is grounded；

The operational amplifier B2c electrode input ends are separately connected the one end resistance G7a and the one end resistance H8a, cathode input End is separately connected the one end resistance I9a, the one end capacitance E5b and the one end resistance J10a, output end be separately connected the capacitance E5b other ends, The resistance J10a other ends, the one end resistance K11a connect the one end capacitance F6b with the resistance L12a other ends and are grounded；

The operational amplifier C3c electrode input ends are separately connected the one end resistance M13a and the one end resistance N14a, and cathode is defeated Enter end and be separately connected the one end resistance O15a, the one end resistance P16a and the one end capacitance G7b, the resistance O15a other ends are separately connected electricity The I9a other ends, the resistance C3a other ends are hindered, the operational amplifier C3c output ends are separately connected the resistance P16a other ends, capacitance The G7b other ends, the one end resistance Q17a and the one end resistance R18a, resistance R18a other ends connection one end capacitance H8b are simultaneously grounded；

The operational amplifier D4c electrode input ends are separately connected the one end resistance S19a, the one end resistance T20a and capacitance I9b One end, negative input are separately connected the resistance N14a other ends, the resistance H8a other ends, the resistance B2a other ends and operational amplifier D4c output ends, the capacitance I9b other ends connect the resistance T20a other ends and are grounded.The voltage/current that the utility model uses Acquisition module can realize the purpose being amplified to small signal, further improve control accuracy.

In addition, in the utility model, 485 communication modules 8 include RS485 chips 16 and surge protection chip 17, described The ends RS485 chip 16RO connect the one end resistance U21a, and the resistance U21a other ends are grounded by capacitance J10b, the RS48516 cores The ends piece RE and the ends DE are all connected with the one end resistance V22a, the one end the ends the RS485 chips 16DI connection resistance W23a, the connection of the ends VCC The one end capacitance K11b, capacitance K11b other ends ground connection, the ends RS485 chips 16A and the ends B are all connected with surge protection chip 17, The ends the RS485 chips 16GND ground connection.485 communication modules used can greatly improve communication anti-interference；Using RS485 communication modes can reduce connecting line to greatest extent, keep whole system connection simpler.

In conclusion the utility model structural principle is simple, and strong antijamming capability, control accuracy height.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of double magnetic coder control devices of DC brushless motor, including outer housing (1), it is characterised in that：The outer housing (1) front end face is equipped with LED display (2), and alarm lamp (3), the outer housing (1) are equipped with below the LED display (2) Inner cavity is equipped with control circuit board (4), and the control circuit board (4) is equipped with MCU (5), the first magnetic coder (6), the second magnetic and compiles Code device (7), 485 communication modules (8), voltage/current acquisition module (9), temperature collecting module (10), display module (11), report Alert module (12) and three phase full bridge drive module (13)；The MCU (5) is separately connected the first magnetic coder (6), the second magnetic coding Device (7), voltage/current acquisition module (9), temperature collecting module (10), display module (11), alarm module (12), the MCU (5) host computer (14) is connected by 485 communication modules (8), the MCU (5) connects nothing by three phase full bridge drive module (13) Brush motor (15).

2. a kind of double magnetic coder control devices of DC brushless motor according to claim 1, it is characterised in that：The electricity Pressure/current acquisition module (9) includes that operational amplifier A (1c), operational amplifier B (2c), operational amplifier C (3c) and operation are put Big device D (4c), operational amplifier A (1c) electrode input end are separately connected resistance A (1a) and the one end resistance B (2a), cathode Input terminal is separately connected the one end resistance C (3a), the one end (4a) resistance D and the one end capacitance C (3b), output end and is separately connected capacitance C (3b) other end, resistance D (4a) other end, the one end (5a) resistance E and the one end resistance F (6a), resistance F (6a) other end connection electricity Hold the one end (4b) D and is grounded；

Operational amplifier B (2c) electrode input end is separately connected the one end (7a) resistance G and the one end resistance H (8a), and cathode is defeated Enter end and be separately connected the one end resistance I (9a), the one end (5b) capacitance E and the one end resistance J (10a), output end to be separately connected capacitance E (5b) other end, resistance J (10a) other end, the one end (11a) resistance K connect capacitance F (6b) one with resistance L (12a) other end It holds and is grounded；

Operational amplifier C (3c) electrode input end is separately connected the one end (13a) resistance M and the one end resistance N (14a), cathode Input terminal is separately connected the one end resistance O (15a), the one end (16a) resistance P and the one end capacitance G (7b), resistance O (15a) other end point Not Lian Jie resistance I (9a) other end, resistance C (3a) other end, operational amplifier C (3c) output end is separately connected resistance P (16a) other end, capacitance G (7b) other end, the one end (17a) resistance Q and the one end resistance R (18a), resistance R (18a) other end connect It connects the one end (8b) capacitance H and is grounded；

Operational amplifier D (4c) electrode input end is separately connected the one end resistance S (19a), the one end (20a) resistance T and capacitance I The one end (9b), negative input be separately connected resistance N (14a) other end, resistance H (8a) other end, resistance B (2a) other ends and Operational amplifier D (4c) output end, capacitance I (9b) other end connect resistance T (20a) other ends and are grounded.

3. a kind of double magnetic coder control devices of DC brushless motor according to claim 1, it is characterised in that：It is described 485 communication modules (8) include RS485 chips (16) and surge protection chip (17), RS485 chips (16) ends the RO connection electricity The one end U (21a) is hindered, resistance U (21a) other ends are grounded by capacitance J (10b), and RS485 chips (16) ends RE and the ends DE are equal The one end resistance V (22a) is connected, RS485 chips (16) ends DI connect the one end resistance W (23a), and the ends VCC connect capacitance K The one end (11b), capacitance K (11b) other end ground connection, RS485 chips (16) side a and b are all connected with surge protection chip (17), RS485 chips (16) ends the GND ground connection.

4. a kind of double magnetic coder control devices of DC brushless motor according to claim 1, it is characterised in that：Described One magnetic coder (6), the second magnetic coder (7) are all made of the Magnetic Sensor of model TLE5012B- E1000.