DC brushless motor driver structure

Abstract

The utility model discloses a structure of a direct current brushless motor driver, which relates to the technical field of direct current motor drivers and comprises a driver body. The driver body is fixedly mounted on the motor; the motor driver is characterized in that the driver body is provided with a motor driver main loop interface, a motor Hall signal interface, a control signal interface and a firmware upgrading interface; the motor driver main loop interface is provided with a power supply main line and a three-phase output line. The power supply main line and the three-phase output line are correspondingly connected with the wiring end of the motor; the power supply main line comprises a power supply positive electrode and a power supply negative electrode, and the three-phase output line comprises a yellow U phase; a green V phase and a blue W phase; the motor Hall signal interface and the motor driver main loop interface are in independent routing connection, so that interference between transmission signals is effectively avoided in the control of the motor, and the working efficiency of the motor is ensured.

Description

TECHNICAL FIELD

[0001] The utility model discloses a direct current motor driver technical field, and specifically relates to a structure of a direct current brushless motor driver. BACKGROUND

[0002] The driver provides power supply and driving signal for the motor, converts the input power supply into voltage and current suitable for the operation of the motor, and generates accurate control signal to adjust the rotating speed, rotating direction and torque of the motor; precise control is realized; different needs of the motor are met, the motor and system are protected, and functions such as overcurrent protection, overvoltage protection and overheat protection are provided to prevent the motor and the whole system from being damaged due to abnormal conditions;

[0003] The installation direction of the drive controller can be arbitrary, but the ventilation, cleanliness and dryness of the driver should be maintained; if a clean installation position cannot be found, a cover should be added to prevent the driver from being soaked by water and other contaminants; in order to ensure full power output of the driver, the driver must be installed in a well-ventilated place, otherwise forced air cooling should be added.

[0004] In some small devices sensitive to cost, higher cost may limit the application of the direct current motor driver; in places with strict requirements on electromagnetic environment, such as near medical devices or precision instruments, electromagnetic interference may cause problems. In the scene that needs long-time continuous operation and is inconvenient to maintain, the wear and replacement of the brush will bring inconvenience;

[0005] After retrieval, the utility model discloses a direct current brushless motor driver; including: voltage regulation module, control module, power drive module and current detection module, the voltage regulation module with control module, power drive module and current detection module electricity connection and power supply, control module with power drive module and current detection module electricity connection, power drive module according to the signal output of control module drive motor's power, current detection module detects the driving current of motor and sends to control module, control module according to the signal of current detection module adjusts the signal sent to power drive module

[0006] The driver in the above-mentioned patent can effectively drive the motor when working, but the structure in the above-mentioned patent is relatively complex, and the complex circuit cannot find the root cause in a short time during maintenance or repair, so the maintenance efficiency is low, and the wiring distance in the above-mentioned patent is small, which can easily cause signal interference when driving the motor. CONTENT OF THE UTILITY MODEL

[0007] The utility model discloses a direct current brushless motor driver's structure, in this structure, the wiring of motor hall signal interface and power line are separated and are wired, and this can effectively avoid the signal interference between wiring, and the control of motor is effectively realized through the connection of motor hall signal interface and control signal interface and corresponding wiring terminal, to solve the problem of above -mentioned background art.

[0008] In order to realize the above object, the utility model provides the following technical scheme:

[0009] A direct current brushless motor driver's structure, including driver body, the driver body is fixedly installed on motor, its characterized in that: driver body is provided with motor driver main circuit interface, motor hall signal interface and control signal interface, firmware upgrade interface,

[0010] Motor driver main circuit interface is provided with power main line and three -phase output line, and the power main line and three -phase output line are connected with the wiring terminal of motor, and the power main line includes power supply positive pole and power supply negative pole, and three -phase output line includes yellow U phase, green V phase and blue W phase,

[0011] As a further technical scheme of the utility model, the wiring terminal of motor hall signal interface is provided with six, one is empty terminal, three wiring terminals are connected with three -phase output line, and the color corresponds, and the black line in wiring terminal is connected with signal power supply,

[0012] As a further technical scheme of the utility model, the wiring terminal in control signal interface is provided with 16, and different control to motor is realized respectively, and the common end is connected through black input respectively, pink connects 60% speed limit control signal, green connects speed regulation analog input end, red connects speed regulation signal + 5V, grey links reverse control signal, blue connects 30% speed limit control signal, brown connects positive rotation control signal, and red connects enable / control signal power supply positive pole,

[0013] As a further technical scheme of the utility model, the driver operation must give the steering instruction, and the default empty stop is not given in the case of speed instruction, and the motor can be started / stopped, positive rotation / reverse rotation through this signal, and the control of motor is effectively realized through the driver, and the different work needs of motor are met,

[0014] As a further technical scheme of the utility model, the wiring of motor hall signal interface and power line is separated, to avoid the interference of hall signal, and the 5 core shielded signal line is used for the hall signal line when the distance between motor and driver is too far, and the motor main power line should be thickened and wired,

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses, install and debug the driver before, must disconnect the main power supply, can only turn on the main power supply under the condition of ensuring that wiring is reliable and correct, power supply main line and three -phase output line must with motor lead color correspondence, and screw down the nut, ensure that the connection is correct fastening reliable,

[0017] The utility model discloses, motor hall signal interface and motor driver main circuit interface middle separate wiring connection, this in the control of motor effectively avoid the interference between transmission signal, guarantee the working efficiency of motor. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the plan view of the utility model.

[0019] Figure 2 It is the side view of the utility model Figure 1 .

[0020] Figure 3 It is the control circuit schematic diagram of the utility model.

[0021] In the drawing: 1-motor driver body, 10-motor driver main circuit interface, 11-motor hall signal interface, 12-control signal interface, 13-firmware upgrade interface. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0023] Please refer to Figures 1-3 , in the embodiments of the utility model, a structure of direct current brushless motor driver, including driver body 1, the driver body 1 is fixedly installed on motor, the driver body 1 is provided with motor driver main circuit interface 10, motor hall signal interface 11 and control signal interface 12, firmware upgrade interface 13,

[0024] The motor driver main circuit interface 10 is provided with power supply main line and three -phase output line, and the power supply main line and three -phase output line are connected with the wiring end of motor correspondingly, the power supply main line includes power supply positive pole and power supply negative pole, and three -phase output line includes yellow U phase, green V phase and blue W phase,

[0025] The motor Hall signal interface 11 is provided with six wiring terminals, one of which is a blank terminal, three of which are connected with three-phase output lines and correspond in color, and the black line of the wiring terminal is connected with a signal power supply;

[0026] The wiring terminals in the control signal interface 12 are provided with 16 terminals, which realize different control of the motor;

[0027] By adopting the above technical scheme, before installing and debugging the driver, the main power supply must be disconnected, and the main power supply can be connected only when it is ensured that the wiring is reliable and correct; the main power supply line and the three-phase output line must correspond to the color of the motor lead wire, and the nut is tightened to ensure correct and reliable connection;

[0028] The driver must be given a steering instruction during operation, and the default idle stop is not given; in the case of a speed instruction, the motor can be started / stopped and forward / reverse rotated through the signal;

[0029] In the embodiment, the motor Hall signal interface 11 and the power line are separated and wired to avoid Hall signal interference; when the motor and the driver are too far apart, the Hall signal line adopts a 5-core shielded signal line, and the motor main power line should be thickened and wired; the transmission of the signal is effectively ensured, and the working efficiency of the motor is ensured;

[0030] By adopting the above technical scheme, the motor Hall signal interface and the motor driver main loop interface are separately wired and connected in the middle, which effectively avoids the interference between the transmission signals during the control of the motor and ensures the working efficiency of the motor.

[0031] The working principle of the utility model is: the inner hole control loop of the driver is powered in standby state. This signal on / off can be used as a door lock switch or an emergency stop signal;

[0032] In use, different connection between the wiring terminals in the control signal interface 12 is used to control and adjust the different rotating speeds of the motor according to the different needs of different motors;

[0033] The motor Hall signal line is suggested to be separated and wired from the power line to avoid Hall signal interference, effectively ensure that the motor follows the signal instruction issued by the driver during operation, and effectively ensure the working efficiency of the motor.

[0034] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0035] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A structure for a brushless DC motor driver, comprising a driver body (1); the driver body (1) is fixedly mounted on a motor; characterized in that: The driver body (1) is provided with a motor driver main circuit interface (10), a motor Hall signal interface (11), a control signal interface (12), and a firmware upgrade interface (13). The main circuit interface (10) of the motor driver is provided with a main power line and a three-phase output line; the main power line and the three-phase output line are connected to the motor terminals; the main power line includes a positive power pole and a negative power pole, and the three-phase output line includes a yellow U phase, a green V phase and a blue W phase.

2. The structure of a brushless DC motor driver according to claim 1, characterized in that: The motor Hall signal interface (11) has six terminals, one of which is an empty terminal. Three of the terminals are connected to the three-phase output lines and are color-coordinated. The black wire in the terminal is connected to the signal power supply.

3. The structure of a brushless DC motor driver according to claim 1, characterized in that: The control signal interface (12) has 16 terminals, which are used to control the motor in different ways.

4. The structure of a brushless DC motor driver according to claim 1, characterized in that: The drive operates by commands; if no command is given, it defaults to neutral and stops. Once a speed command is given, this signal controls the motor to start / stop and rotate forward / reverse.

5. The structure of a brushless DC motor driver according to claim 1, characterized in that: The motor Hall signal interface (11) and the power line are routed separately to avoid Hall signal interference; the Hall signal line between the motor and the driver uses a 5-core shielded signal line.

Images