Integrated brushless motor speed regulator

Abstract

The utility model discloses an integrated brushless motor speed regulator, which comprises a shell, a circuit board assembly and a display element, the circuit board assembly comprises a driving board and a speed regulation board, the driving board is arranged on the bottom surface of an inner cavity of the shell and is connected with the speed regulation board and a brushless motor so as to drive the brushless motor to rotate, and the display element is arranged on the shell. The speed regulation board is installed on the inner side of the shell corresponding to the upper portion of the driving board so as to adjust working parameters of the brushless motor, the display element is installed on the speed regulation board and used for displaying the working parameters of the brushless motor and setting parameters of the speed regulation board, and an opening is formed in the shell so as to contain one end of the display element. According to the technical scheme, the driving plate and the speed regulation plate are arranged in the inner cavity of the shell to form an installation whole, the overall structure is more compact and stable, and meanwhile the shell is simple in structure, convenient to operate and more suitable for actual use scenes when used.

Description

Technical Field

[0001] The utility model relates to the technical field of speed regulators, in particular to an integrated brushless motor speed regulator. Background Art

[0002] Brushless DC motors are widely used in automobiles, tools, industrial control, automation, aerospace and other fields. Traditional control of brushless motors requires the help of speed control devices. The speed control device converts DC power into three-phase AC power to drive the brushless motor to rotate. At the same time, the working parameters of the brushless motor can be set. The traditional speed control device includes a speed control board and a drive board. When in use, the two plates are connected by welding lines, and then the brushless motor is connected to the drive board. The speed control board is connected to the power supply. As mentioned above, the components of the traditional speed control device are relatively independent, and wiring connections are required when in use. The operation is complicated and the integrity is poor. It cannot meet the requirements of quick plug-in and pull-out during the test. At the same time, its parameter visibility is poor. The working parameters of the brushless motor need to be measured with the help of external equipment, which is particularly inconvenient when used. Utility Model Content

[0003] The main purpose of the utility model is to provide an integrated brushless motor speed regulator, aiming to solve the problems that the components of the traditional speed regulator are relatively independent, need to be connected by wiring when in use, are complicated to operate and have poor integrity, and cannot meet the requirements of quick plug-in and pull-out during testing.

[0004] To achieve the above object, the utility model provides an integrated brushless motor speed regulator, comprising:

[0005] case;

[0006] A circuit board assembly, comprising a driving board and a speed regulating board, wherein the driving board is mounted on the bottom surface of the inner cavity of the housing and connected to the speed regulating board and the brushless motor to drive the brushless motor to rotate, and the speed regulating board is mounted on the inner side of the housing corresponding to the upper side of the driving board to adjust the working parameters of the brushless motor; and

[0007] A display element is installed on the speed regulating board and is used to display the working parameters of the brushless motor and the setting parameters of the speed regulating board. An opening is provided on the shell to accommodate one end of the display element.

[0008] Preferably, a fixing structure is provided on the bottom surface of the inner cavity;

[0009] The fixing structure includes a clamping portion and a first mounting column, the clamping portion is used to limit the side wall of the driving plate in the thickness direction, and the driving plate is fixed to the first mounting column by the cooperation of a first screw and the first mounting column.

[0010] Preferably, the fixing structure also includes a plurality of second mounting columns, one ends of the plurality of second mounting columns are all arranged on the bottom surface of the inner cavity, and the other ends thereof are all arranged above the driving plate, and the plurality of corners of the speed regulating plate are fixedly mounted on one end of the plurality of second mounting columns by second screws.

[0011] Preferably, two first mounting holes and a second mounting hole are provided on a vertical side wall of the shell, the two first mounting holes are used to correspondingly accommodate the direction switch and the brake switch on the speed regulating plate, and the second mounting hole is used to accommodate the speed regulating knob on the speed regulating plate.

[0012] Preferably, each of the two first mounting holes is provided with a button cap slidably connected thereto, and the two button caps are respectively sleeved on the direction switch and the brake switch, and a knob cap rotatably connected thereto is provided on the side wall of the shell corresponding to the second mounting hole, and the knob cap is sleeved and fixed on the speed control knob.

[0013] Preferably, two third mounting holes and two fourth mounting holes are provided on the shell wall opposite to the side wall corresponding to the second mounting hole, and the two first mounting holes are respectively provided with a power input socket and a signal socket to be connected to the speed regulation board, and the drive board is respectively provided with a motor Hall terminal and a motor phase line terminal corresponding to the two fourth mounting holes to be connected to the brushless motor.

[0014] Preferably, the housing is further provided with a fixing member for mounting the housing on an external workbench;

[0015] The fixing member comprises:

[0016] A plurality of magnets are provided, and mounting frames are provided at the bottom surface of the shell corresponding to the plurality of vertical inner walls of the shell, the upper end of the mounting frame is open, and a through groove from the open end surface of the mounting frame to the bottom surface of the shell is provided on a vertical wall of the mounting frame away from the shell, and the plurality of magnets are fixedly installed in the mounting frame.

[0017] Preferably, an anti-slip pad is provided at the bottom of the shell.

[0018] Preferably, the shell is provided with an upper cover, the upper cover is mounted on one end of the shell by fixing screws, and the opening is provided on the upper cover.

[0019] Preferably, the shell and the upper cover are both made of aluminum alloy profiles.

[0020] In the technical solution of the utility model, a shell is provided, and the drive board and the speed regulating board are fixedly installed in the inner cavity of the shell in sequence through the fixing structure on the shell, which has stronger integration and can meet the requirements of quick plugging and unplugging of the end connectors of the brushless motor during use. The testing process is more stable and will not affect the internal wiring during plugging and unplugging.

[0021] At the same time, a plurality of mounting holes are opened on the vertical side wall of the shell for accommodating the installation of the drive board and some control structures on the speed regulating board, including a brake switch, a direction switch, a speed regulating knob, etc., so the operator can control and adjust the drive board and the speed regulating board in real time through the outside of the shell, which makes the operation more convenient.

[0022] The display element is combined to display the speed control board parameters in real time, avoiding the need for external connection of test equipment to measure the test parameters during the test process. It has strong integration and better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the integrated brushless motor speed regulator provided by the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the integrated brushless motor speed regulator;

[0026] Figure 3 for Figure 1 A top view of the middle shell structure;

[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the anti-slip mat.

[0028] Description of Figure Numbers:

[0029]

[0030]

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Brushless DC motors are widely used in automobiles, tools, industrial control, automation, aerospace and other fields. Traditional control of brushless motors requires the help of speed control devices. The speed control device converts DC power into three-phase AC power to drive the brushless motor to rotate. At the same time, the working parameters of the brushless motor can be set. The traditional speed control device includes a speed control board and a drive board. When in use, the two plates are connected by welding lines, and then the brushless motor is connected to the drive board. The speed control board is connected to the power supply. As mentioned above, the components of the traditional speed control device are relatively independent, and wiring connections are required when in use. The operation is complicated and the integrity is poor. It cannot meet the requirements of quick plug-in and pull-out during the test. At the same time, its parameter visibility is poor. The working parameters of the brushless motor need to be measured with the help of external equipment, which is particularly inconvenient when used.

[0036] In order to solve the above problems, the utility model proposes an integrated brushless motor speed regulator 1000. Figures 1 to 4 It is a structural schematic diagram of an embodiment of the integrated brushless motor speed regulator 1000 provided by the utility model.

[0037] Please refer to Figures 1 to 4The utility model proposes an integrated brushless motor speed regulator 1000, wherein a housing 1 is provided to provide installation space for a driving plate 6 and a speed regulating plate 7, and to protect the driving plate 6 and the speed regulating plate 7. During installation, the driving plate 6 is first fixedly installed on the bottom surface of the housing 1, and then the speed regulating plate 7 is installed in the housing 1 corresponding to the upper portion of the driving plate 6. After the installation is completed, the driving plate 6 and the speed regulating plate 7 are electrically connected. During testing, the speed regulating plate 7 sets the working parameters of the brushless motor, and the driving plate 6 is connected to the brushless motor to convert the current into a three-phase or four-phase current to drive the brushless motor to move. During this process, the display element 71 on the speed regulating plate 7 can display the voltage, speed, current, frequency, duty cycle and other parameters set on the speed regulating plate 7 and the actual working parameters of the brushless motor in real time, which changes the inconvenience caused by the traditional parameter display requiring the use of external pressure measuring elements and resistance measuring elements for contact measurement. One end of the display element 71 is arranged outside the housing 1 to realize parameter visualization, which is more convenient to use.

[0038] Specifically, a clamping portion 12 is provided on the bottom surface of the inner cavity of the shell 1 to limit the outer periphery of the driving plate 6. At the same time, the clamping portion 12 has a certain height in the vertical direction. While limiting the driving plate 6, the driving plate 6 has a certain height in the vertical direction, which is more conducive to the heat dissipation of the driving plate 6. After the clamping portion 12 preliminarily fixes the driving plate 6, the corners of the driving plate 6 are installed on the first mounting column 11 through the first screw 8, so as to strengthen the installation and fixation of the driving plate 6.

[0039] After the drive plate 6 is installed, the speed regulating plate 7 is installed on a plurality of second mounting posts 13 extending upward from the bottom surface of the shell 1 by means of second screws 9. Since the second mounting posts 13 extend above the first mounting posts 11, after the speed regulating plate 7 is installed, there is a certain vertical distance between it and the drive plate 6, which is conducive to air circulation and overall heat dissipation.

[0040] After the installation of the driving plate 6 and the speed regulating plate 7 is completed, in order to facilitate the operation of the operator, a first mounting hole 16 is provided on the side wall of the shell 1 corresponding to the direction switch 72 and the brake switch 73 on the speed regulating plate 7, and one end of the above two switches extends outward from the two first mounting holes 16 to the outside of the shell 1. When in use, pressing the direction switch 72 from the outside can control the switching of the direction of the brushless motor, and pressing the brake switch 73 from the outside can control the opening or closing of the brake of the brushless motor. At the same time, the upper speed regulating knob 74 of the speed regulating plate 7 extends outward from the second mounting hole 17 on the shell 1, and one end of it can be directly rotated externally to control the speed of the brushless motor when in use.

[0041] In order to prevent dust from entering the shell 1, a button cap 14 and a knob cap 15 are respectively provided at the first mounting hole 16 and the second mounting hole 17. The button cap 14 and the knob cap 15 are installed corresponding to the direction switch 72, the brake switch 73 and the speed regulating knob 74. After the installation is completed, the inside of the shell 1 can be well protected from dust without affecting the operation of the corresponding switches.

[0042] The shell 1 is also provided with two third mounting holes 18 and two fourth mounting holes 19 for connecting the speed regulating board 7 and the driving board 6 to external devices. Specifically, the speed regulating board 7 is connected to the external device through the power input socket 181 and the signal socket 182 at the third mounting hole 18, and the motor Hall terminal 61 and the motor phase terminal 62 on the driving board 6 are connected to the external brushless motor at the fourth mounting hole 19, so as to realize the mutual transmission of control signals. In addition, during use, since the driving board 6 and the speed regulating board 7 are both fixedly installed, during testing, they can meet the plugging and unplugging operations at the above-mentioned multiple connection ports without affecting the internal circuit connection, thereby avoiding the problem that the traditional independent driving board 6 and the speed regulating board 7 are not easy to fix during the plugging and unplugging connection of the external circuit, and are easy to affect the existing connection circuit.

[0043] In addition, it can be added that the integrated brushless motor speed regulator 1000 adopts RS485 communication. RS485 communication is a half-duplex communication method. It can be connected to the bus to realize multi-machine communication. Compared with the control signal line method for transmitting data, it saves wires and improves the stability of data transmission. The communication distance is extended from more than ten meters to one thousand meters, and the communication rate is increased from more than ten Kbps to 10Mbps. In terms of the number of connected nodes, RS232 only supports one-to-one connection, and RS485 communication can connect 128 nodes at the same time.

[0044] The RS485 communication of the speed regulator is compatible with the Modbus RTU protocol. Each Modbus RTU frame consists of multiple bytes, including the start bit, slave device address, function code, data, CRC check and other fields. The CRC check is used to detect erroneous data during transmission. Compared with data sum check or parity check, the CRC check has a higher data error correction capability and supports the control of various industrial equipment, such as industrial computers, PLCs, single-chip microcomputer systems, etc.

[0045] In order to facilitate the fixing of the entire shell 1 on the workbench, a plurality of magnets 3 are provided on the circumferential inner wall of the shell 1. The magnets 3 are arranged on the circumferential inner wall thereof. When in use, the entire shell 1 can be adsorbed and fixed to the side of the workbench, which is in line with actual usage conditions. At the same time, installation and disassembly can be more convenient. In addition, a through groove 201 is provided at the installation frame 20 for fixing the magnet 3, which is convenient for disassembling the internal magnet 3 from the side of the installation frame 20. In addition to fixing the shell 1 in the above embodiment, a mounting frame can also be provided to mount the entire shell 1 on the workbench through a bolt assembly. Compared with the traditional installation and fixing method by bolts, etc., the solution in this embodiment is more convenient for fixing and disassembly.

[0046] In this embodiment, the anti-skid pad 4 at the bottom of the shell 1 can increase the contact area with the work surface when the shell 1 is placed on the work surface, thereby improving its stability during use.

[0047] Specifically, an upper cover 5 is provided at one end of the shell 1, and the upper cover 5 is fixed to the shell 1 by screws, which is easy to disassemble and can timely maintain the internal components of the shell 1. At the same time, the display end of the display element 71 on the speed regulating board 7 is set outward from the opening 51 on the upper cover 5, so that the setting parameters of the speed regulating board 7 and the working parameters of the brushless motor can be observed in real time at the upper cover 5.

[0048] The shell 1 and the upper cover 5 are both made of aluminum alloy profiles, which can be integrally formed during manufacturing. The aluminum alloy profiles are also convenient for making holes on their side walls.

[0049] In addition, in order to facilitate heat dissipation, heat dissipation holes 111 are provided on the side wall of the shell 1. Hot air is discharged from the heat dissipation holes 111 in time, which can ensure the normal temperature range of the driving board 6 and the speed regulating board 7 when they are working.

[0050] In this embodiment, the bottom surface of the shell 1 can also be separately set as a structural member, similar to the upper cover 5, and its bottom surface is set as a base plate, the first mounting column 11, the second mounting column 13 and the clamping portion 12 are all set on the base plate, and then the base plate is assembled to the end of the shell 1 by screws.

[0051] In addition, in addition to the above embodiments, the integrated brushless motor speed regulator 1000 in this scheme also has another embodiment, wherein the speed regulation board 7 and the drive board 6 are set to a PCB circuit control board, and its shell 1 structure refers to the structure in the above embodiment, and the integrated PCB circuit control board is installed in the shell 1 to form another embodiment of the integrated brushless motor speed regulator 1000, which has some of the beneficial effects in the above embodiments, which will not be repeated here.

[0052] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An integrated brushless motor speed regulator, characterized in that: include: case; A circuit board assembly, comprising a driving board and a speed regulating board, wherein the driving board is mounted on the bottom surface of the inner cavity of the housing and connected to the speed regulating board and the brushless motor to drive the brushless motor to rotate, and the speed regulating board is mounted on the inner side of the housing corresponding to the upper side of the driving board to adjust the working parameters of the brushless motor; and A display element is installed on the speed regulating board and is used to display the working parameters of the brushless motor and the setting parameters of the speed regulating board. An opening is provided on the shell to accommodate one end of the display element.

2. The integrated brushless motor speed regulator according to claim 1, characterized in that: A fixing structure is provided on the bottom surface of the inner cavity; The fixing structure includes a clamping portion and a first mounting column, the clamping portion is used to limit the side wall of the driving plate in the thickness direction, and the driving plate is fixed to the first mounting column by the cooperation of a first screw and the first mounting column.

3. The integrated brushless motor speed regulator according to claim 2, characterized in that: The fixing structure also includes a plurality of second mounting columns, one end of each of which is arranged on the bottom surface of the inner cavity, and the other end of each of which is arranged above the driving plate, and the plurality of corners of the speed regulating plate are fixedly mounted on one end of each of the second mounting columns by second screws.

4. The integrated brushless motor speed regulator according to claim 2, characterized in that: Two first mounting holes and a second mounting hole are provided on a vertical side wall of the shell, the two first mounting holes are used to correspondingly accommodate the direction switch and the brake switch on the speed regulating plate, and the second mounting hole is used to accommodate the speed regulating knob on the speed regulating plate.

5. The integrated brushless motor speed regulator according to claim 4, characterized in that: The two first mounting holes are each provided with a button cap slidably connected thereto, and the two button caps are respectively sleeved on the direction switch and the brake switch. A knob cap rotatably connected thereto is provided on the side wall of the shell corresponding to the second mounting hole, and the knob cap is sleeved and fixed on the speed regulating knob.

6. The integrated brushless motor speed regulator according to claim 4, characterized in that: Two third mounting holes and two fourth mounting holes are provided on the shell wall opposite to the side wall corresponding to the second mounting hole. The two third mounting holes are respectively provided with a power input socket and a signal socket to be connected to the speed regulation board. The two fourth mounting holes on the drive board are respectively provided with motor Hall terminals and motor phase line terminals to be connected to the brushless motor.

7. The integrated brushless motor speed regulator according to claim 6, characterized in that: The housing is also provided with a fixing piece for mounting the housing on an external workbench; The fixing member comprises: A plurality of magnets are provided, and mounting frames are provided at the bottom surface of the shell corresponding to the plurality of vertical inner walls of the shell, the upper end of the mounting frame is open, and a through groove from the open end surface of the mounting frame to the bottom surface of the shell is provided on a vertical wall of the mounting frame away from the shell, and the plurality of magnets are fixedly installed in the mounting frame.

8. The integrated brushless motor speed regulator according to claim 1, characterized in that: An anti-skid pad is provided at the bottom of the shell.

9. The integrated brushless motor speed regulator according to claim 1, characterized in that: The shell is provided with an upper cover, the upper cover is mounted on one end of the shell by fixing screws, and the opening is provided on the upper cover.

10. The integrated brushless motor speed regulator according to claim 9, characterized in that: The shell and the upper cover are both made of aluminum alloy profiles.

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