Motor drive integrated system

Abstract

The embodiment of the invention provides a motor driving integrated system which is suitable for being electrically connected with an external power supply for use. The motor-driven integrated system comprises an upper controller, a power supply module, a buffer module and a plurality of motor-driven all-in-one machines. The power supply module is electrically connected with the upper controller, receives an external power supply, converts the external power supply into a direct current power supply, and converts the direct current power supply into a working voltage. The buffer module is electrically connected with the power supply module, receives the direct-current power supply to filter ripple voltage of the direct-current power supply, and receives working voltage. The motor-driven all-in-one machine is electrically connected with the buffer module and receives the direct-current power supply and the working voltage.

Description

Technical Field

[0001] The present disclosure relates to a motor drive integrated system, and more particularly to a motor drive integrated system with simplified wiring and reduced size. Background Art

[0002] The existing motor drive system has complicated wiring, which makes the wire cost of the motor drive system high. In addition, the existing motor drive system is bulky, which is not conducive to the user's space planning.

[0003] Therefore, a motor drive integrated system is needed to improve the above-mentioned disadvantages. Summary of the invention

[0004] The disclosed embodiment provides a motor drive integrated system suitable for being electrically connected to an external power source. The motor drive integrated system includes a host controller, a power module, a buffer module, and a plurality of motor drive integrated machines. The power module is electrically connected to the host controller, receives an external power source and converts the external power source into a DC power source, and converts the DC power source into an operating voltage. The buffer module is electrically connected to the power module, receives a DC power source to filter out the ripple voltage of the DC power source, and receives an operating voltage. The motor drive integrated machine is electrically connected to the buffer module, and receives a DC power source and an operating voltage.

[0005] In one embodiment, each of the motor-driven integrated machines includes a motor, a driver, and a motor frame. The motor includes a connecting plate. The driver includes a power board and a terminal block. The power board is arranged adjacent to the connecting plate. The connecting plate and the power board are directly connected through a connector. The motor frame includes a motor accommodating groove, a power board accommodating groove, and an opening. The motor accommodating groove accommodates the motor and exposes the connecting plate. The power board accommodating groove accommodates the power board, and the power board is electrically connected to the connecting plate. The opening accommodates the terminal block.

[0006] In one embodiment, the driver further includes a control board connected to the working voltage and the power board.

[0007] In one embodiment, the control board is connected to a host controller, and the control board receives speed or position commands and transmits back the status of the motor through a communication circuit.

[0008] In one embodiment, the driver further includes a position feedback device, and a position feedback circuit of the control board detects a magnetic signal or an optical signal of the position feedback device to obtain motor position information.

[0009] In one embodiment, the power board includes a DC / AC inverter.

[0010] In one embodiment, the power board includes a voltage and current feedback circuit.

[0011] In one embodiment, the power board has a gap, so that the board surface of the power board is discontinuous.

[0012] In one embodiment, the connection board includes a filter capacitor, and the connection board receives the DC bus power provided by the buffer module.

[0013] In one embodiment, heat from the power board is conducted to the motor frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] While this specification concludes with claims that particularly point out and distinctly claim what are regarded as embodiments of the present disclosure, advantages of the embodiments of the present disclosure may be more readily ascertained from the description of certain examples of the embodiments of the present disclosure when read in conjunction with the accompanying drawings, in which:

[0015] Figure 1 is a schematic diagram of a motor drive integrated system according to some embodiments of the present disclosure;

[0016] Figure 2 is a cross-sectional view of a motor-driven integrated machine according to some embodiments of the present disclosure;

[0017] Figure 3 is a schematic diagram of a power board according to some embodiments of the present disclosure.

[0018]

Explanation of symbols

[0019] 100: Motor drive integrated system

[0020] 102: City electricity

[0021] 110: Power module

[0022] 111: AC voltage

[0023] 112: AC / DC rectifier

[0024] 113: DC bus power supply

[0025] 114:Soft start circuit

[0026] 115: Working voltage

[0027] 116: DC / DC Converter

[0028] 118: Communication circuit

[0029] 120: Host controller

[0030] 121: Communication signal

[0031] 130: Buffer module

[0032] 132: Buffer capacitor

[0033] 134: Communication circuit

[0034] 136: DC / DC Converter

[0035] 140: Motor drive integrated machine

[0036] 141: Motor

[0037] 142: Communication circuit

[0038] 144:Drive controller

[0039] 146: DC / AC Inverter

[0040] 148: Filter capacitor

[0041] 200: Motor drive integrated machine

[0042] 210: Motor

[0043] 212: Motor bearing

[0044] 214: stator winding

[0045] 216: Rotor

[0046] 218: Connecting plate

[0047] 220:Drive

[0048] 222: Power board

[0049] 224: Terminal Block

[0050] 226: Position feedback device

[0051] 228: Control Panel

[0052] 230: Motor frame

[0053] 231: Front cover

[0054] 232: Motor housing

[0055] 233: Rear end cover

[0056] 234: Motor accommodating groove

[0057] 235: Power board storage slot

[0058] 236: Opening

[0059] 2121:Front bearing

[0060] 2122:Rear bearing

[0061] 2221: Gap DETAILED DESCRIPTION

[0062] The present disclosure can be more clearly understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that in order to make it easier for readers to understand and the drawings are concise, the multiple drawings in the present disclosure only depict a portion of the display device, and the specific elements in the drawings are not drawn according to the actual scale. In addition, the number and size of each element in the figure are only for illustration and are not intended to limit the scope of the present disclosure. In addition, similar and / or corresponding reference numerals may be used in different embodiments, which is only for the purpose of simply and clearly describing some embodiments, and does not represent any correlation between the different embodiments and / or structures discussed.

[0063] In addition, relative terms such as "below" or "bottom" and "above" or "top" may be used in the embodiments to describe the relative relationship of one element to another element in the drawings. It is understood that if the device in the drawings is turned upside down, the element described on the "below" side will become the element on the "above" side.

[0064] The terms "approximately," "equal," "equal," or "same," "substantially," or "approximately" are generally interpreted as within 20% of a given value or range, or within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.

[0065] In the present disclosure, when it is mentioned that element A overlaps element B, it is intended to include a situation where the two elements overlap at least partially.

[0066] It is understood that, although the terms "first", "second", etc. may be used herein to describe various elements, layers and / or parts, these elements, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different elements, layers and / or parts. Therefore, a first element, layer and / or part discussed below may be referred to as a second element, layer and / or part without departing from the teachings of some embodiments of the present disclosure. In addition, for the sake of brevity, the terms "first", "second", etc. may not be used in the specification to distinguish different elements. Without violating the scope defined by the attached claims, the first element and / or second element recorded in the claims may be interpreted as any element that meets the description in the specification.

[0067] It should be noted that the technical solutions provided in the following different embodiments can be replaced, combined or mixed with each other to form another embodiment without violating the spirit of the present disclosure.

[0068] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and this disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined herein.

[0069] See also Figure 1 , Figure 1 1 is a schematic diagram of a motor drive integrated system 100 according to some embodiments of the present disclosure. The motor drive integrated system 100 can be connected (e.g., electrically connected) to an external power source. For example, the motor drive integrated system 100 can be connected to a mains 102 to supply power required by the motor drive integrated system 100.

[0070] The motor drive integrated system 100 may include a power module 110 , a host controller 120 , one or more buffer modules 130 , and a plurality of motor drive integrated machines 140 .

[0071] It should be noted that even though Figure 1 The motor drive integrated system 100 is shown to include three buffer modules 130; however, it should be understood that Figure 1 This is only an example of the present disclosure. In fact, the number of buffer modules 130 is not limited. For example, according to some embodiments of the present disclosure, the motor drive integrated system 100 may include one, two, three, four, or more buffer modules 130.

[0072] Similarly, even though Figure 1 Each buffer module 130 is shown connected to three motor drive integrated machines 140; however, it should be understood that Figure 1 This is just an example of the present disclosure. In fact, the number of motor-driven integrated machines 140 to which each buffer module 130 can be connected is not limited. For example, according to some embodiments of the present disclosure, each buffer module 130 can be connected to one, two, three, four, or more motor-driven integrated machines 140.

[0073] The power module 110 may include an AC / DC rectifier 112, a soft start circuit 114, a DC / DC converter 116, and a communication circuit 118. Furthermore, the power module 110 may be connected (e.g., electrically connected) to an external power source (e.g., the mains 102), receive the external power source and convert the mains into a DC power source. More specifically, the AC / DC rectifier 112 and the soft start circuit 114 of the power module 110 may convert an AC voltage 111 input from the mains 102 to the power module 110 into a DC bus power 113 of a DC power source.

[0074] The DC / DC converter 116 can receive the DC bus power 113 and convert the DC bus power 113 into a working voltage 115 required by the communication circuit 118 .

[0075] The power module 110 can also be connected (e.g., electrically connected) to the host controller 120 and the buffer module 130. The communication circuit 118 of the power module 110 is connected (e.g., electrically connected) to the host controller 120 and the buffer module 130, so that the power module 110 can communicate with the host controller 120 and the buffer module 130, and the host controller 120 can communicate with the buffer module 130 through the power module 110.

[0076] For example, the host controller 120 can transmit the control signal and the command signal to the buffer module 130 through the communication circuit 118 of the power module 110 and the communication signal 121; and the buffer module 130 can also transmit the signal to the host controller 120 through the communication circuit 118 of the power module 110.

[0077] The buffer module 130 may include a buffer capacitor 132 and a communication circuit 134 .

[0078] The buffer capacitor 132 is electrically connected to the power module 110, receives the DC power, and filters out the ripple voltage of the DC power. More specifically, the buffer module 130 filters out the DC bus power 113 of the DC power, and the buffer capacitor 132 can be connected (e.g., electrically connected) to other buffer modules 130 to provide the DC bus power 113 to other buffer modules 130.

[0079] The buffer capacitor 132 may also be connected to one or more motor drive integrated machines 140 to provide the DC bus power 113 to the motor drive integrated machines 140 .

[0080] The buffer capacitor 132 can also filter out the ripple voltage of the DC bus power supply 113 caused by the load of the motor drive integrated device 140 , so that the motor drive integrated system 100 is more stable.

[0081] The communication circuit 134 of the buffer module 130 can be operated by the working voltage 115 provided by the power module 110. The communication circuit 134 can be connected to the power module 110, other buffer modules 130 and one or more motor drive integrated devices 140 to communicate therewith.

[0082] The buffer module 130 may provide the working voltage 115 to the connected device after receiving the working voltage 115 provided by the power module 110. For example, the buffer module 130 may provide the working voltage 115 to the motor drive integrated machine 140 and / or other buffer modules 130.

[0083] The motor drive integrated device 140 may include a motor 141 , a communication circuit 142 , a drive controller 144 , a DC / AC inverter 146 , and a filter capacitor 148 .

[0084] The motor drive integrated machine 140 can receive the operating voltage 115 provided by the power module 110 ; or, in other words, the motor drive integrated machine 140 can receive the operating voltage 115 from the buffer module 130 .

[0085] The communication circuit 142 of the motor driving integrated machine 140 can receive the control signal and the command signal of the upper controller 120 through the communication signal 121 to control the motor position or speed of the motor driving integrated machine 140 .

[0086] After receiving the control signal and the command signal from the host controller 120 , the drive controller 144 of the motor drive integrated machine 140 can control the DC / AC inverter 146 to output current and drive the motor 141 .

[0087] The filter capacitor 148 of the motor drive integrated machine 140 can be connected to the DC bus power 113 of the buffer module 130 to provide power to the DC / AC inverter 146 in the motor drive integrated machine 140 to filter out surge voltage caused by switching of the DC / AC inverter power switch.

[0088] It should be noted that according to some embodiments of the present disclosure, the internal working voltage and communication connection of the motor drive integrated system 100 of the present case can use power line communication and only use power line connection.

[0089] Therefore, the motor drive integrated system 100 of the present invention has fewer lines and simpler wiring, which can effectively reduce the cost of wires.

[0090] According to some embodiments of the present disclosure, the buffer module 130 may further include a DC / DC converter 136. The DC / DC converter 136 may effectively reduce the wiring of the working voltage between the power module 110 and the buffer module 130, and may more effectively reduce the wire material cost.

[0091] According to some embodiments of the present disclosure, the motor drive integrated machine 140 may further include a DC / DC converter 143. The DC / DC converter 143 may effectively reduce the wiring of the working voltage between the buffer module 130 and the motor drive integrated machine 140, and may more effectively reduce the wire material cost.

[0092] See also Figure 2 , Figure 22 is a cross-sectional view of a motor-driven integrated machine 200 according to some embodiments of the present disclosure. According to some embodiments of the present disclosure, the aforementioned motor-driven integrated machine 140 may be similar to or equal to the motor-driven integrated machine 200.

[0093] The motor-driven integrated machine 200 may include a motor 210 , a driver 220 , and a motor frame 230 .

[0094] The motor 210 may include a motor bearing 212 , a stator winding 214 , a rotor 216 , and a connection plate 218 .

[0095] The driver 220 may include a power board 222 , a terminal block 224 , a position feedback device 226 , and a control board 228 .

[0096] The motor frame 230 may include a front cover 231 , a motor housing 232 , a rear cover 233 , a motor receiving groove 234 , a power board receiving groove 235 , and an opening 236 .

[0097] The front cover 231, the motor housing 232 and the rear cover 233 may form a receiving space to receive the components of the motor-driven integrated machine 200. For example, the motor bearing 212, the stator winding 214, the rotor 216, the connecting plate 218, the power board 222, the terminal block 224 and the position feedback device 226 may be disposed in the receiving space.

[0098] The opening 236 can accommodate the terminal base 224 . The power board receiving groove 235 can accommodate the power board 222 , and the power board 222 can be electrically connected to the connection board 218 , and the connection board 218 receives the DC bus power of the DC power source through the terminal base 224 .

[0099] The motor bearing 212 includes a front bearing 2121 and a rear bearing 2122. The front bearing 2121 can be fixed on the front end cover 231 of the motor frame 230, and the rear bearing 2122 can be fixed on the motor housing 232 of the motor frame 230.

[0100] The rotor 216 can be supported on the motor bearing 212. The position feedback device 226 can include a magnetic sensor or an optical sensor, and the magnetic sensor or the optical sensor can be fixed on the rotor 216. Therefore, the position feedback device 226 can rotate synchronously with the motor bearing 212.

[0101] The ends of the stator winding 214 can be welded to the connection plate 218, and the stator winding 214 can receive a three-phase AC power supply. According to some embodiments of the present disclosure, the stator winding 214 can be a single set or multiple sets of parallel windings, and the stator winding 214 can be connected through the winding lines of the connection plate 218.

[0102] The motor accommodating groove 234 can accommodate and install the motor 210 , and the motor accommodating groove 234 can expose the connecting plate 218 .

[0103] According to some embodiments of the present disclosure, the control board 228 can be connected (e.g., electrically connected) to an external upper controller (e.g., the aforementioned upper controller 120) of the motor drive all-in-one 200, and the control board 228 can receive a speed command or a position command from the upper controller through a communication circuit and transmit the motor status back to the upper controller.

[0104] The control board 228 can also be connected (e.g., electrically connected) to an external power source of the motor drive all-in-one machine 200 (e.g., the working voltage 115 of the aforementioned power module 110) to provide the required working voltage (e.g., the aforementioned working voltage 115) to the motor drive all-in-one machine 200.

[0105] According to some embodiments of the present disclosure, the control board 228 may include a position feedback circuit (not shown), which can detect the magnetic signal or light signal generated by the magnetic sensor or optical sensor of the position feedback device 226 to obtain the motor position information.

[0106] According to some embodiments of the present disclosure, the control board 228 may also be connected to the power board 222 to receive voltage and current feedback signals into a drive controller (not shown) of the control board 228. Furthermore, the drive controller may calculate a pulse-width modulation (PWM) signal to transmit the pulse-width modulation signal to the power board 222.

[0107] Since the motor drive integrated machine 200 disclosed in the present invention includes the position feedback device 226 and the drive controller, the position feedback device 226 and the drive controller do not need additional wiring. Therefore, the motor drive integrated machine 200 disclosed in the present invention can simplify wiring and effectively reduce wire material costs.

[0108] The power board 222 may include a DC / AC inverter (not shown). The DC / AC inverter may receive a DC bus power supply (e.g., the aforementioned DC bus power supply 113) from the connection board 218, and the DC / AC inverter may receive a pulse width modulation signal output by the control board 228 to convert the DC power into AC power and provide it to the connection board 218, and then to the stator winding 214.

[0109] According to some embodiments of the present disclosure, the power board 222 may contact the motor housing 232 through a heat dissipation material to conduct heat energy generated by the DC / AC inverter of the power board 222 due to power crystal loss to the motor housing 232 for heat dissipation.

[0110] Therefore, the power board 222 of the present case does not need to dissipate heat through the fin heat sink of the rear end cover 233. In this way, the volume of the motor-driven integrated machine 200 can be reduced, and the degree of freedom of arrangement of the internal components of the motor-driven integrated machine 200 can also be increased.

[0111] According to some embodiments of the present disclosure, the power board 222 may further include a voltage and current feedback circuit that can detect the voltage of the DC bus power supply and the AC output current and transmit the results back to the control board 228 .

[0112] See also Figure 2 According to some embodiments of the present disclosure, the power board 222 may be disposed adjacent to the connection board 218. For example, the power board 222 may be disposed facing the connection board 218. Furthermore, the power board 222 and the connection board 218 may be directly connected via a connector (not shown). More specifically, the connector may be a board-to-board connector.

[0113] In this way, the wiring between the power board 222 and the connection board 218 can be simplified, and the wire cost can be effectively reduced and space can be saved.

[0114] The connection board 218 can receive a voltage (e.g., the aforementioned DC bus power 113) provided by the outside of the motor drive integrated machine 200 (e.g., the aforementioned buffer module 130). In addition, the connection board 218 can include a filter capacitor (not shown). The filter capacitor can filter out the ripple voltage, and the connection board 218 can pass the DC bus power 113 to the power board 222 after filtering out the ripple voltage. In this way, the motor drive integrated machine 200 can be made more stable.

[0115] See also Figure 3 , Figure 3 FIG. 2 is a schematic diagram of a power board 222 according to some embodiments of the present disclosure. Figure 3 As shown, the power board 222 may not be continuous. For example, the power board 222 may have a gap 2221 .

[0116] The gap 2221 may extend from the center to the edge of the power board 222, so that the power board 222 is not continuous. According to some embodiments of the present disclosure, the power board 222 may be a C-shaped metal substrate.

[0117] In this way, the eddy current caused by the magnetic field generated when the motor drives the integrated machine 200 to rotate can be avoided, and electromagnetic interference can be reduced.

[0118] It should be noted that the features of the various embodiments of the present disclosure may be mixed and matched as long as they do not violate the spirit of the invention or conflict with each other.

[0119] Although the embodiments and advantages of the present disclosure have been described above, it should be understood that those skilled in the art may make various changes, substitutions and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. It should be noted that different embodiments may be arbitrarily combined into other embodiments, as long as the combination conforms to the spirit of the present disclosure. In addition, the scope of the present disclosure is not limited to the processes, machines, manufactures, compositions, devices, methods and steps in the specific embodiments described in the specification. Those skilled in the art can understand existing or developing processes, machines, manufactures, compositions, devices, methods and steps from some embodiments of the present disclosure. Therefore, the scope of the present disclosure includes the aforementioned processes, machines, manufactures, compositions, devices, methods and steps. In addition, each of the items in the attached claims constitutes a separate embodiment, and the scope of the present disclosure also includes each combination of the attached claims and embodiments.

Claims

1. A motor drive integrated system, characterized in that: Suitable for use in electrical connection with an external power source, the motor drive integrated system comprises: A host controller; a power module, electrically connected to the upper controller, receiving an external power supply and converting the external power supply into a DC power supply, and converting the DC power supply into an operating voltage; a buffer module, electrically connected to the power module, receiving the DC power supply to filter out the ripple voltage of the DC power supply, and receiving the working voltage; and A plurality of motor drive integrated machines are electrically connected to the buffer module and receive the DC power supply and the working voltage.

2. The motor drive integrated system according to claim 1, characterized in that: Each of the plurality of motor-driven integrated machines comprises: A motor including a connecting plate; A driver, comprising: a power board disposed adjacent to the connection board; and a terminal block, wherein the connecting plate receives a DC bus power of the DC power source through the terminal block; and A motor frame, comprising: A motor receiving groove for receiving and installing the motor and exposing the connecting plate; a power board receiving slot for receiving and installing the power board, and the power board is electrically connected to the connecting board; and An opening is provided to accommodate and install the terminal seat.

3. The motor drive integrated system according to claim 2, characterized in that: The driver also includes a control board connected to the working voltage and the power board.

4. The motor drive integrated system as claimed in claim 3, characterized in that: The control board is connected to the upper controller, and receives speed or position commands and returns the status of the motor through a communication circuit.

5. The motor drive integrated system according to claim 3, characterized in that: The driver further comprises a position feedback device. A position feedback circuit of the control board detects a magnetic signal or an optical signal of the position feedback device to obtain motor position information.

6. The motor drive integrated system according to claim 2, characterized in that: The power board includes a DC / AC inverter.

7. The motor drive integrated system according to claim 2, characterized in that: The power board includes a voltage and current feedback circuit.

8. The motor drive integrated system according to claim 2, characterized in that: The power board has a gap, so that the board surface of the power board is discontinuous.

9. The motor drive integrated system according to claim 2, characterized in that: The connection board includes a filter capacitor, and the connection board receives the DC bus power provided by the buffer module.

10. The motor drive integrated system according to claim 2, characterized in that: The heat energy of the power board is transferred to the motor frame.

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