Domestic steering engine driving module

Abstract

The utility model discloses a domestic steering engine driving module, which comprises a circuit board, a steering engine driving module, a driving module and a control module, the Hall sensing module is arranged on the circuit board and is used for collecting a Hall signal of a motor; the driving module is arranged on the circuit board and is used for driving a motor to work; and the main control module is arranged on the circuit board, the main control module is connected with the Hall sensing module and the driving module, and the main control module is used for sending a driving control signal to the driving module according to the received Hall signal. By the adoption of the localized steering engine driving module, structural integration, modularization and localization design is achieved, the size is reduced, and use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor drive, in particular to a domestically produced steering gear drive module. Background Art

[0002] The existing motor drive module circuit structure has a relatively low integration level and is not compatible with both brushed DC motors and brushless motors. Moreover, most highly integrated modules need to be imported and use many electronic components, resulting in large product size and increased production costs, which is not conducive to market promotion. In response to this situation, a highly integrated drive module that is domestically produced and compatible with both brushed and brushless motors has been invented. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the utility model is to propose a domestic steering gear drive module, which realizes structural integration, modularization, and domestic design, reduces the volume, and improves the convenience of use.

[0004] In order to solve the above problems, the utility model provides a domestically produced servo drive module, comprising: a circuit board; a Hall sensor unit, which is arranged on the circuit board to collect the Hall signal of the motor; a drive unit, which is arranged on the circuit board to drive the motor to work; a main control unit, which is arranged on the circuit board, connected to the Hall sensor unit and the drive unit, and used to send a drive control signal to the drive unit according to the received Hall signal.

[0005] According to the domestically produced servo drive module of the utility model, a Hall sensor unit is provided to detect the Hall signal of the motor, and the main control unit controls the drive unit to drive the motor based on the Hall signal, and the Hall sensor unit, the main control unit and the drive unit are all integrated on the same circuit board, thereby realizing the drive control of the motor and realizing a structurally integrated, modular and domestically produced design, which is convenient for reducing the product volume and improving the convenience of use.

[0006] In some embodiments, the driving unit includes: a Mosfet driving subunit, the Mosfet driving subunit is connected to the main control unit, and the Mosfet driving subunit is used to send a motor driving signal according to the driving control signal; a Mosfet full-bridge subunit, the Mosfet full-bridge subunit is connected to the Mosfet driving subunit, and the Mosfet full-bridge subunit is used to drive the motor to work according to the motor driving signal.

[0007] In some embodiments, the domestically produced servo drive module further includes: a current detection unit, which is arranged on the circuit board and connected to the drive unit and the main control unit, and the current detection unit is used to collect the working current of the motor; the main control unit is also used to send a stop drive signal when the working current of the motor meets the current protection condition.

[0008] In some embodiments, the domestically produced servo drive module further includes: a power supply unit, which is disposed on the circuit board and connected to the Hall sensor unit and the main control unit, and is used to supply power to the Hall sensor unit and the main control unit.

[0009] In some embodiments, three motor connection terminals are also provided on the circuit board, and the motor connection terminals are used to connect a brushless motor or a brushed motor.

[0010] In some embodiments, a plurality of signal output terminals are disposed on the circuit board, and the signal output terminals are used to output electrical signals to the outside.

[0011] In some embodiments, the domestically produced servo drive module further includes: a packaging shell, wherein the packaging shell is used to package the circuit board.

[0012] In some embodiments, a plurality of through holes are provided on the packaging shell, and the through holes are used to lead out the motor connection terminals and the signal output terminals.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a structural block diagram of a localized steering gear drive module according to an embodiment of the utility model;

[0016] Figure 2 This is a structural exploded diagram of a localized steering gear drive module according to an embodiment of the utility model;

[0017] Figure 3 The figure is a schematic diagram of the overall structure of a domestically produced steering gear drive module according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] Domestic servo drive module 10;

[0020] Circuit board 1; Hall sensor unit 2; drive unit 3; main control unit 4; current detection unit 5; power supply unit 6; packaging shell 7;

[0021] Mosfet driver subunit 31 ; Mosfet full-bridge subunit 32 ; motor connection terminal 11 ; signal output terminal 12 ; through hole 20 . DETAILED DESCRIPTION

[0022] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0023] In order to solve the above problems, the purpose of the utility model is to propose a domestically produced steering gear drive module, which realizes structural integration, modularization, and domestic design, reduces the size, and improves the convenience of use.

[0024] Reference below Figure 1 The localized steering gear drive module of the utility model embodiment is described as follows: Figure 1 As shown, the domestically produced steering gear drive module 10 includes a circuit board 1, a Hall sensor unit 2, a drive unit 3 and a main control unit 4.

[0025] Among them, the Hall sensor unit 2 is arranged on the circuit board 1 to collect the Hall signal of the motor; the driving unit 3 is arranged on the circuit board 1 to drive the motor to work; the main control unit 4 is arranged on the circuit board 1, and the main control unit 4 is connected to the Hall sensor unit 2 and the driving unit 3. The main control unit 4 is used to send a driving control signal to the driving unit 3 according to the received Hall signal.

[0026] Specifically, the main control unit 4 receives the Hall signal about the motor through the interface of the Hall sensor unit 2 to determine the position and speed of the motor rotor, and then the main control unit 4 sends a drive control signal to the drive unit 3 through an internal algorithm according to the Hall signal. In response to the drive control signal, the drive unit 3 drives the motor to operate, thereby realizing the drive control of the motor; in addition, by integrating the Hall sensor unit 2, the main control unit 4 and the drive unit 3 on the same circuit board 1, compared with the existing motor drive circuit design, this application realizes a structurally integrated, modular, and domestically produced design, which is convenient for reducing the product volume, miniaturizing the circuit composition, and improving the convenience of use. In addition, in this application, the domestically produced servo drive module 10 can use commonly used domestically produced components to realize its circuit structure, reducing the dependence on imported components, and being more adapted to the development needs of domestic production.

[0027] In addition, the Hall sensor module 2 can support both 5V Hall signals and 12V Hall signals.

[0028] According to the domestically produced servo drive module 10 of the utility model, the Hall sensor unit 2 is provided to detect the Hall signal of the motor, and the main control unit 4 controls the drive unit 3 to drive the motor based on the Hall signal, and the Hall sensor unit 2, the main control unit 4 and the drive unit 3 are all integrated on the same circuit board 1, thereby realizing the drive control of the motor and realizing the structural integration, modularization and domestication design, which is convenient for reducing the product volume and improving the convenience of use.

[0029] In some embodiments, reference Figure 1 As shown, the driving unit 3 includes a Mosfet driving sub-unit 31 and a Mosfet sub-full-bridge unit 32 .

[0030] Among them, the Mosfet driver subunit 31 is connected to the main control unit 4, and the Mosfet driver subunit 31 is used to send a motor drive signal according to the drive control signal; the Mosfet full-bridge subunit 32 is connected to the Mosfet driver subunit 31, and the Mosfet full-bridge subunit 32 is used to drive the motor to work according to the motor drive signal. In this way, the Mosfet driver subunit 31 drives the Mosfet full-bridge subunit 32 to control the motor in an open loop.

[0031] In some embodiments, reference Figure 1 As shown, the domestically produced steering gear drive module 10 further includes a current detection unit 5 .

[0032] The current detection unit 5 is arranged on the circuit board 1 and connected to the drive unit 3 and the main control unit 4. The current detection unit 5 is used to collect the working current of the motor. The main control unit 4 is also used to send a stop driving signal when the working current of the motor meets the current protection condition.

[0033] Specifically, the working current of the motor is detected in real time by the current detection unit 5, and the main control unit 4 judges the detected working current. When the working current does not meet the current protection condition, the driving control signal will be normally output to drive the motor to operate normally; when the working current meets the current protection condition, a stop driving signal will be output to stop the motor from operating, thereby realizing the current protection function of the motor. In addition, the current detection unit 5 is also arranged on the circuit board 1, which can further improve the degree of structural integration, reduce the product volume, and improve the convenience of use.

[0034] The current protection condition may be that the operating current is greater than or equal to a preset current threshold, or other conditions may be set without limitation.

[0035] In some embodiments, reference Figure 1 As shown, the current detection unit 5 monitors the working current of the motor in real time by connecting to the Mosfet full-bridge unit 32 .

[0036] In some embodiments, reference Figure 1 As shown, the domestically produced steering gear drive module 10 also includes a power supply unit 6 .

[0037] The power supply unit 6 is disposed on the circuit board 1 and connected to the Hall sensor unit 2 and the main control unit 4, and is used to supply power to the Hall sensor unit 2 and the main control unit 4. In addition, by also disposing the power supply unit 6 on the circuit board 1, the degree of structural integration can be further improved, the product volume can be reduced, and the convenience of use can be improved.

[0038] In some embodiments, reference Figure 2 As shown, three motor connection terminals 11 are also provided on the circuit board 1, and the motor connection terminals 11 are used to connect a brushless motor or a brushed motor. This arrangement can achieve compatibility with brushless motors and brushed motors, and improve the versatility of the module.

[0039] Specifically, if a brushless motor is connected, the three-phase lines of the brushless motor can be connected to the three motor connection terminals 11 respectively to achieve drive control of the brushless motor; if a brushed motor is connected, the two-phase lines of the brushed motor can be connected to two of the three motor connection terminals 11 respectively to achieve drive control of the brushed motor.

[0040] In some embodiments, reference Figure 2 As shown, a plurality of signal output terminals 12 are provided on the circuit board 1, and the signal output terminals 12 are used to output electrical signals to the outside, thereby facilitating connection and communication between the circuit board 1 and other external devices.

[0041] In some embodiments, reference Figure 2 As shown in FIG. 3 , the domestically produced servo drive module 10 further includes a packaging shell 7 , which is used to package the circuit board 1 , thereby achieving physical protection for the circuit board 1 and all units on the circuit board 1 .

[0042] In some embodiments, reference Figure 2 As shown in FIG. 3 , a plurality of through holes 20 are provided on the packaging shell 7 , and the through holes 20 are used to lead out the motor connection terminals 11 and the signal output terminals 12 .

[0043] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the module or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A domestically produced steering gear drive module, characterized in that: include: Circuit boards; A Hall sensor unit, which is disposed on the circuit board and is used to collect a Hall signal of the motor; A driving unit, wherein the driving unit is arranged on the circuit board to drive the motor to work; A main control unit, the main control unit is arranged on the circuit board, the main control unit is connected to the Hall sensor unit and the driving unit, and the main control unit is used to send a driving control signal to the driving unit according to the received Hall signal; Wherein, the driving unit comprises: A Mosfet driving subunit, the Mosfet driving subunit is connected to the main control unit, and the Mosfet driving subunit is used to send a motor driving signal according to the driving control signal; A Mosfet full-bridge subunit, wherein the Mosfet full-bridge subunit is connected to the Mosfet driving subunit, and the Mosfet full-bridge subunit is used to drive the motor to work according to the motor driving signal.

2. The domestically produced steering gear drive module according to claim 1, characterized in that: Also includes: A current detection unit, the current detection unit is arranged on the circuit board and connected to the drive unit and the main control unit, and the current detection unit is used to collect the working current of the motor; The main control unit is also used to send a stop driving signal when the working current of the motor meets the current protection condition.

3. The domestically produced steering gear drive module according to claim 2, characterized in that: Also includes: A power supply unit is arranged on the circuit board and connected to the Hall sensor unit and the main control unit, and is used to supply power to the Hall sensor unit and the main control unit.

4. The domestically produced steering gear drive module according to any one of claims 1 to 3, characterized in that: The circuit board is also provided with three motor connection terminals, and the motor connection terminals are used to connect a brushless motor or a brushed motor.

5. The domestically produced steering gear drive module according to claim 4, characterized in that: The circuit board is provided with a plurality of signal output terminals, and the signal output terminals are used to output electrical signals to the outside.

6. The domestically produced steering gear drive module according to claim 5, characterized in that: Also includes: A packaging shell is used to package the circuit board.

7. The domestically produced steering gear drive module according to claim 6, characterized in that: The packaging shell is provided with a plurality of through holes, and the through holes are used to lead out the motor connection terminals and the signal output terminals.

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