CN215419982U - Motor controller and motor with same - Google Patents
Motor controller and motor with same Download PDFInfo
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- CN215419982U CN215419982U CN202121724659.3U CN202121724659U CN215419982U CN 215419982 U CN215419982 U CN 215419982U CN 202121724659 U CN202121724659 U CN 202121724659U CN 215419982 U CN215419982 U CN 215419982U
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- circuit board
- layer circuit
- power
- motor controller
- driving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The application provides a motor controller and a motor with the same, and the motor controller comprises a control layer circuit board, a power supply layer circuit board and a driving layer circuit board, wherein a control circuit, a sampling amplification circuit and a communication circuit are arranged on the control layer circuit board; the power layer circuit board is provided with a switching power supply circuit, a radio frequency filter circuit, a rectification filter circuit and a PFC circuit; the driving layer circuit board is provided with a power driving circuit, an inversion power switch tube and a sampling circuit. According to the motor controller and the motor with the same, the problem of high-frequency interference can be solved.
Description
Technical Field
The application belongs to the technical field of motors, and particularly relates to a motor controller and a motor with the same.
Background
At present, strong electricity in a driving system of a high-speed motor can generate high-frequency interference on a precise electronic component, and a high-frequency switch of a power device can generate peak interference and resonance interference to influence the reliable operation of the whole driver.
Therefore, how to provide a motor controller capable of solving the problem of high-frequency interference and a motor having the same becomes a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Therefore, an object of the present invention is to provide a motor controller and a motor having the same, which can solve the problem of high frequency interference.
In order to solve the above problem, the present application provides a motor controller including:
the control layer circuit board is provided with a control circuit, a sampling amplification circuit and a communication circuit;
the power supply layer circuit board is provided with a switching power supply circuit, a radio frequency filter circuit, a rectifying filter circuit and a PFC circuit;
and the driving layer circuit board is provided with a power driving circuit, an inversion power switch tube and a sampling circuit.
Furthermore, the power supply layer circuit board, the control layer circuit board and the driving layer circuit board are electrically connected in a detachable mode through the connecting structures.
Furthermore, the connecting structure comprises an inserting part, and a magnetism isolating part is arranged on the periphery of the inserting part; the magnetism isolating part is used for eliminating the interference of the clutter on the transmission signal.
Furthermore, the insertion part comprises a first insertion part, the first insertion part is arranged on the driving layer circuit board, and the first insertion part is inserted into the control layer circuit board.
Furthermore, the plug part comprises a second plug part, the second plug part is arranged on the power layer circuit board, and the second plug part is plugged with the control layer circuit board.
Furthermore, the connecting structure comprises a connecting part, the connecting part comprises a connecting rod and a connecting piece, and the connecting rod is arranged on the power layer circuit board; the connecting piece sets up on the drive layer circuit board, is provided with the spacing groove on the connecting piece, and connecting rod detachable is spacing in the spacing inslot.
Furthermore, the substrate of the power layer circuit board is an aluminum substrate; and/or the substrate of the driving layer circuit board is an aluminum substrate; and/or the substrate for controlling the layer circuit board is an FR-4 substrate.
Furthermore, the driving layer circuit board, the control layer circuit board and the power supply layer circuit board are sequentially arranged; the switching power supply circuit, the radio frequency filter circuit, the rectifying filter circuit and the PFC circuit are arranged on one side of the power supply layer circuit board close to the control layer circuit board;
and/or the power driving circuit, the inversion power switch tube and the sampling circuit are arranged on one side of the driving layer circuit board close to the control layer circuit board.
Further, components on the power layer circuit board are packaged by adopting a paster; and/or the components on the driving layer circuit board are packaged by adopting a paster.
According to still another aspect of the present application, there is provided an electric motor including a motor controller, the motor controller being the above-mentioned motor controller.
The application provides a machine controller and have its motor, this application adopts three layer construction, separately control circuit, power drive circuit, switching power supply circuit, overcomes peak interference and resonance interference that switching power supply and power drive circuit's high frequency switch brought, has increased the reliability, can solve the high frequency interference problem effectively.
Drawings
Fig. 1 is a schematic structural diagram of a motor controller according to an embodiment of the present application.
The reference numerals are represented as:
1. a control layer circuit board; 2. a drive layer circuit board; 3. a power layer circuit board; 4. a plug-in part; 5. a magnetism isolating part; 6. a plastic housing; 7. a metal socket; 8. soldering tin; 9. a connecting rod; 10. a control circuit; 11. a sampling amplifying circuit; 12. a communication circuit; 13. a switching power supply circuit; 14. a PFC circuit; 15. a rectification filter circuit; 16. a radio frequency filter circuit; 17. a drive circuit; 18. an inversion power switch tube; 19. a sampling circuit; 20. a connecting member.
Detailed Description
Referring to fig. 1 in combination, a motor controller includes a control layer circuit board 1, a power layer circuit board 2 and a driving layer circuit board 3, wherein the control layer circuit board 1 is provided with a control circuit 10, a sampling and amplifying circuit 11 and a communication circuit 12; the power layer circuit board 2 is provided with a switching power circuit 13, a radio frequency filter circuit 16, a rectification filter circuit 15 and a PFC circuit 14; the driving layer circuit board 3 is provided with a power driving circuit 17, an inversion power switch tube 18 and a sampling circuit 19, the three-layer structure is adopted in the application, the control circuit 10, the power driving circuit 17 and the switching power supply circuit 13 are separated, peak interference and resonance interference caused by high-frequency switches of the switching power supply and the power driving circuit 17 are overcome, reliability is improved, and the problem of high-frequency interference can be effectively solved. The high-frequency switching interference of the switching power supply and the inverter circuit can be overcome. The problem of switching interference of the switching power supply is solved; the high-speed permanent magnet synchronous motor in the prior art is prevented from having a rotating speed of more than 10000 rpm, needing higher switching frequency than a common permanent magnet synchronous motor in the operation process, and generating peak interference and resonant interference when alternating voltage and current generated by the high-speed permanent magnet synchronous motor pass through other components in a circuit.
The application also discloses some embodiments, two pairs of power layer circuit board 2, control layer circuit board 1 and driving layer circuit board 3 can be dismantled through connection structure and be electrically connected. Each layer of circuit board can be detached and matched with other control circuits 10, so that application scenes are increased, the applicability of the controller is improved, and the maintenance cost is saved; the structure is simple, the production efficiency is high, the volume is small, and the production cost is saved; the power device with larger heat generation and the control device are separately arranged, so that the heat dissipation area is increased, the control precision is improved, and the arrangement of a heat dissipation structure is facilitated. The application scene can be increased, the applicability of the driver is improved, and the maintenance cost is saved. The technical problem that all circuits of a traditional controller are placed on a circuit board and the whole controller can only be replaced during maintenance is solved.
The application also discloses some embodiments, the connecting structure comprises a plugging part, and the periphery of the plugging part is provided with a magnetic isolation part 5; the magnetism isolating part 5 is used for eliminating the interference of the clutter on the transmission signal. The inserting part is a metal contact pin, the magnetism isolating part 5 is a magnetism isolating ring, and the magnetism isolating ring is sleeved on the periphery of the metal contact pin and plays roles of fixing insulation and resisting interference. The magnetism isolating ring is an insulating magnetic ring, can eliminate the interference of clutter on transmission signals, improves the control precision and has good inhibiting effect on high-frequency noise.
The application also discloses some embodiments, the inserting part comprises a first inserting part, the first inserting part is arranged on the driving layer circuit board 3, and the first inserting part is inserted into the control layer circuit board 1. The first plug part is a first metal pin used for stably and reliably transmitting signals between the control layer circuit board 1 and the driving layer circuit board 3.
The application also discloses some embodiments, the inserting part comprises a second inserting part, the second inserting part is arranged on the power layer circuit board 2, and the second inserting part is inserted into the control layer circuit board 1. The second plug part is a second metal pin used for controlling the stable and reliable transmission of signals between the control layer circuit board 1 and the power layer circuit board 2.
The structure of the plug-in part 4 is completely the same as that of the first plug-in part and that of the second plug-in part, the plug-in part 4 is composed of a metal contact pin and a socket, the socket is composed of a metal socket 7 and a plastic shell 6, and the metal contact pin is matched with the socket, so that the metal contact pin is connected with the metal socket 7, and the purpose of signal transmission is achieved; the control layer circuit board 1 is provided with a metal contact pin, the driving layer circuit board 3 and the power layer circuit board 2 are provided with sockets, the insulating magnetic ring is sleeved on the metal contact pin, and the metal contact pin is connected with the metal socket 7. Thus, stable and reliable transmission of signals between the control layer circuit board 1 and the drive layer circuit board 3 and between the control layer circuit board 1 and the power supply layer circuit board 2 is realized, and transmission of control signals and feedback signals between the control layer circuit board 11 and the drive layer circuit board 32 and between the control layer circuit board 11 and the power supply layer circuit board 23 is realized.
The application also discloses some embodiments, the connecting structure comprises a connecting part, the connecting part comprises a connecting rod 9 and a connecting piece 20, and the connecting rod 9 is arranged on the power layer circuit board 2; the connecting piece 20 is arranged on the driving layer circuit board 3, a limiting groove is formed in the connecting piece 20, and the connecting rod 9 is detachably limited in the limiting groove. The connecting part is used for power signal transmission of high voltage and large current between the power layer circuit board 2 and the driving layer circuit board 3; the connecting rod 9 is a copper column, and the connecting piece 20 can be a copper ring; the copper column is detachably arranged on the inner ring side of the copper ring. The copper column is matched with the inner circumference side of the copper ring, and the diameter can be selected according to the amplitude of current and voltage. The power layer circuit board 2 is provided with a copper column, the driving layer circuit board 3 is provided with a copper ring, and the copper column is connected with the copper ring. Thus, the power signal transmission of high voltage and large current between the power layer circuit board 2 and the driving layer circuit board 3 is realized. The copper pillar may be soldered to the driving layer circuit board 3 to form a solder 8.
The application also discloses some embodiments, the substrate of the power layer circuit board 2 is an aluminum substrate; and/or the substrate of the driving layer circuit board 3 is an aluminum substrate; the substrate of the control layer circuit board 1 is an FR-4 substrate.
The application also discloses some embodiments, a driving layer circuit board 3, a control layer circuit board 1 and a power supply layer circuit board 2 are sequentially arranged; the switching power supply circuit 13, the radio frequency filter circuit 16, the rectifying filter circuit 15 and the PFC circuit 14 are arranged on one side of the power supply layer circuit board 2 close to the control layer circuit board 1.
The power driving circuit 17, the inverter power switch tube 18 and the sampling circuit 19 are arranged on one side of the driving layer circuit board 3 close to the control layer circuit board 1. The power supply layer circuit board 2 and the driving layer circuit board 3 adopt single panels, all components are packaged in a surface mount mode, only surface mount components are placed on the inner side, and the heat dissipation device is convenient to install on the outer side.
The application also discloses some embodiments, components on the power layer circuit board 2 are packaged by adopting a paster; and/or components on the driving layer circuit board 3 are packaged by adopting a paster. The control layer circuit board 1 adopted by the application is an FR-4 board, and the driving layer circuit board 3 and the power supply layer circuit board 2 are aluminum substrates; the components on the driving layer circuit board 3 and the power layer circuit board 2 are packaged by surface mount devices.
The control circuit 10 employed in the present application is provided with a CPU. The CPU is connected with the communication circuit 12 to realize the communication function; the CPU receives the feedback signal of the sampling amplifying circuit 11, obtains the real-time rotating speed, the real-time current and the real-time voltage of the motor through calculation, and outputs a control signal through calculation to control the driving circuit 17 and the PFC circuit 14, so that the running of the permanent magnet synchronous motor is realized.
The motor controller is a high-speed permanent magnet synchronous motor controller; the power supply circuit board comprises a control layer circuit board 1, a driving layer circuit board 3 and a power supply layer circuit board 2, wherein the control layer circuit board 1 is provided with a control circuit 10, a sampling amplification circuit 11 and a communication circuit 12, the driving layer circuit board 3 is provided with a driving circuit 17, an inversion power switch tube 18 and a sampling circuit 19, and the power supply layer circuit board 2 is provided with a switching power supply circuit 13, a radio frequency filter circuit 16, a rectification filter circuit 15 and a PFC circuit 14. This application separates switching power supply circuit 13, contravariant power switch tube 18 and control circuit 10 through adopting three layer construction, has both reduced power supply circuit to control circuit 10 and contravariant power switch tube 18's interference, also reduces contravariant power switch tube 18 to control circuit 10 and switch circuit's interference, has improved the operating stability and the reliability of complete machine to the control accuracy of control circuit 10 has been improved. This configuration is also more advantageous for the placement of the heat sink.
According to an embodiment of the present application, there is provided a motor including a motor controller, the motor controller being the above-described motor controller.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (10)
1. A motor controller, comprising:
the device comprises a control layer circuit board (1), wherein a control circuit (10), a sampling amplification circuit (11) and a communication circuit (12) are arranged on the control layer circuit board (1);
the power supply layer circuit board (2), wherein a switching power supply circuit (13), a radio frequency filter circuit (16), a rectifying filter circuit (15) and a PFC circuit (14) are arranged on the power supply layer circuit board (2);
and the driving layer circuit board (3) is provided with a power driving circuit (17), an inversion power switch tube (18) and a sampling circuit (19).
2. The motor controller according to claim 1, wherein the power layer circuit board (2), the control layer circuit board (1) and the driving layer circuit board (3) are electrically connected in a detachable manner through a connecting structure.
3. A motor controller according to claim 2, wherein the connection structure comprises a plug-in part, and a magnetism isolating part (5) is arranged on the periphery of the plug-in part; the magnetic isolation part (5) is used for eliminating the interference of clutter on transmission signals.
4. A motor controller according to claim 3, wherein the plug-in part comprises a first plug-in part, the first plug-in part is disposed on the drive layer circuit board (3), and the first plug-in part is plugged into the control layer circuit board (1).
5. The motor controller according to claim 3, wherein the insertion portion comprises a second insertion portion, the second insertion portion is disposed on the power plane circuit board (2), and the second insertion portion is inserted into the control plane circuit board (1).
6. The motor controller according to claim 2, wherein the connection structure comprises a connection portion including a connection bar (9) and a connection member (20), the connection bar (9) being disposed on the power plane circuit board (2); the connecting piece (20) is arranged on the driving layer circuit board (3), a limiting groove is formed in the connecting piece (20), and the connecting rod (9) is detachably limited in the limiting groove.
7. The motor controller according to claim 1, wherein the substrate of the power layer circuit board (2) is an aluminum substrate; and/or the substrate of the driving layer circuit board (3) is an aluminum substrate; and/or the substrate of the control layer circuit board (1) is an FR-4 substrate.
8. The motor controller according to claim 1, wherein the drive layer circuit board (3), the control layer circuit board (1), and the power layer circuit board (2) are arranged in this order; the switching power supply circuit (13), the radio frequency filter circuit (16), the rectification filter circuit (15) and the PFC circuit (14) are arranged on one side, close to the control layer circuit board (1), of the power layer circuit board (2);
and/or the power driving circuit (17), the inversion power switch tube (18) and the sampling circuit (19) are arranged on one side of the driving layer circuit board (3) close to the control layer circuit board (1).
9. The motor controller according to claim 1, wherein the components on the power layer circuit board (2) are packaged by a chip; and/or components on the driving layer circuit board (3) are packaged by adopting a paster.
10. An electric machine comprising a machine controller, characterized in that the machine controller is a machine controller according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121724659.3U CN215419982U (en) | 2021-07-27 | 2021-07-27 | Motor controller and motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121724659.3U CN215419982U (en) | 2021-07-27 | 2021-07-27 | Motor controller and motor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215419982U true CN215419982U (en) | 2022-01-04 |
Family
ID=79653476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121724659.3U Active CN215419982U (en) | 2021-07-27 | 2021-07-27 | Motor controller and motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215419982U (en) |
-
2021
- 2021-07-27 CN CN202121724659.3U patent/CN215419982U/en active Active
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