Drive control assembly and drive assembly

Abstract

The utility model provides a driving control assembly and a driving assembly. The driving control assembly and the driving assembly are used for driving and controlling an inverter. The driving control assembly comprises a circuit board, a connecting device and a plurality of driving units. The connecting device is installed on the circuit board, and the connecting device is configured to be connected with the general control assembly. The plurality of driving units are mounted on the circuit board, the connecting device and the plurality of driving units are arranged along a first direction, each driving unit comprises a plurality of driving circuits distributed along a second direction, each driving circuit comprises a voltage transformation part and a driving control part, the voltage transformation part is connected between the connecting device and the driving control part, and the driving control part is connected between the connecting device and the driving control part. The first direction intersects the second direction. The driving control assembly provided by the embodiment of the utility model is independently arranged, if the driving control assembly needs to be maintained, the driving control assembly can be conveniently and independently replaced and maintained, the position of the driving control assembly is flexible, the independent driving control assembly can be reused, and the cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power electronics, and particularly relates to a driving control assembly and a driving assembly. BACKGROUND

[0002] In the technical field of power electronics, the total control assembly mainly plays a control role on the whole system, and the driving assembly is mainly responsible for driving the actuator or load to work.

[0003] However, in the related art, the layout of the driving assembly and the total control assembly is not convenient for maintenance. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides a driving control assembly and a driving assembly, and the arrangement of the driving control assembly can simplify the maintenance cost.

[0005] The embodiment of the present application provides a driving control assembly for driving and controlling an inverter. The driving control assembly comprises a circuit board, a connection device and a plurality of driving units. The connection device is installed on the circuit board, and the connection device is configured to be connected with a total control assembly. The plurality of driving units are installed on the circuit board, and the connection device and the plurality of driving units are arranged along a first direction. Each driving unit comprises a plurality of driving circuits distributed along a second direction. Each driving circuit comprises a transformer part and a driving control part. The transformer part is connected between the connection device and the driving control part. The first direction intersects the second direction.

[0006] In some embodiments, the transformer part and the driving control part are arranged along the second direction. The transformer part is arranged at a position close to an edge of the circuit board, and the driving control part is located on a side away from the edge position of the transformer part.

[0007] The driving control assembly provided by the embodiment of the present application arranges the transformer part and the driving control part along the second direction, so that the transformer part and the driving control part are arranged in an orderly structure, which is beneficial to the manufacturing of the driving control assembly, and the layout is reasonable, and the interference between the transformer part and the driving control part is inhibited.

[0008] In some embodiments, the connection device comprises a first output end and a second output end, and the transformer part is connected with the first output end. The driving control part comprises a first driving part and a second driving part. The first driving part is connected with the transformer part, and the transformer part is configured to provide an isolated power supply to the first driving part. The second driving part is connected with the second output end, and the second output end is configured to provide a non-isolated power supply to the second driving part.

[0009] In some embodiments, the transformer part, the first driving part and the second driving part are arranged along the second direction in sequence, and the transformer part is arranged at a position close to an edge of the circuit board.

[0010] In some embodiments, the drive control assembly further comprises a through hole between the first drive part and the second drive part, the through hole is arranged through the circuit board, at least part of the through hole extends along the first direction.

[0011] In some embodiments, the voltage transformation part comprises a transformer drive circuit and a transformer, the transformer drive circuit is connected with the first output end, the transformer is located between the transformer drive circuit and the first drive part, and the transformer is connected with the transformer drive circuit and the first drive part.

[0012] In some embodiments, the drive circuit further comprises a rectifier circuit between the transformer and the first drive part, the rectifier circuit is connected with the transformer and the first drive part, and the drive circuit further comprises a voltage divider between the rectifier circuit and the first drive part, the voltage divider is connected with the rectifier circuit and the first drive part.

[0013] In some embodiments, the drive control assembly further comprises a detection part mounted on the circuit board, the detection part comprises an input end and a third output end, the input end is configured to be connected with the bus capacitor, and the third output end is connected with the connecting device.

[0014] In some embodiments, the drive control assembly further comprises an active discharge part mounted on the circuit board, the active discharge part is connected with the connecting device, and the master control assembly is configured to turn on the active discharge part to reduce the bus voltage.

[0015] The drive control assembly provided by the embodiments of the present application is separately arranged, and if the drive control assembly needs to be maintained, the drive control assembly can be individually replaced and repaired, and the position of the drive control assembly is flexibly arranged. Compared with the related art, since the drive control assembly is fixedly connected with the master control assembly as an integrated structure, the position of the drive control assembly provided by the embodiments of the present application can be flexibly adjusted, and the separate drive control assembly can be reused, which is beneficial to cost reduction.

[0016] The embodiments of the present application further provide another drive assembly, which comprises a master control assembly and a drive control assembly, the master control assembly and the drive control assembly are separately arranged, and the drive control assembly is connected with the master control assembly through a connecting device.

[0017] The drive assembly provided by the embodiments of the present application is arranged, and the positions of the master control assembly and the drive control assembly can be flexibly adjusted. When any one of the master control assembly and the drive control assembly needs to be maintained, only the any one needs to be maintained, and the whole does not need to be replaced and repaired, so that the maintenance cost of the any one can be saved, the cost of the drive assembly can be reduced, and the space occupied by the master control assembly can be reduced by adjusting the positions of the master control assembly and the drive control assembly.

[0018] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clearly understood and implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0019] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not to be considered as limiting of the present application. Moreover, in the drawings, like reference numerals refer to similar components throughout the several views. In the drawings:

[0020] Figure 1 is a plan view of one side of an embodiment of the drive control assembly of the present application;

[0021] Figure 2 is a plan view of the other side of an embodiment of the drive control assembly of the present application;

[0022] Figure 3 is a cross-sectional view of an embodiment of the drive control assembly of the present application;

[0023] Figure 4 is a circuit diagram of an embodiment of the drive control assembly of the present application.

[0024] Reference signs in the detailed description of the embodiments are as follows:

[0025] 100 circuit board; X first direction; Y second direction;

[0026] 200 connection device;

[0027] 300 drive unit;

[0028] 310 transformer part; 311 transformer drive circuit; 312 transformer;

[0029] 320 drive control part; 321 first drive part; 322 second drive part;

[0030] 400 through hole;

[0031] 500 detection part; 510 detection voltage circuit; 520 voltage sampling circuit;

[0032] 600 active discharge part; 610 resistor group; 620 power transistor; 630 second isolation optocoupler. DETAILED DESCRIPTION

[0033] The technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, but cannot be used to limit the protection scope of the present application.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should be understood as the general meaning understood by the skilled in the art to which the embodiments of the present application belong.

[0035] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0036] In addition, the technical terms “first”, “second” and the like are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the embodiments of the present application, the meaning of “a plurality of” is two or more, unless otherwise explicitly specified and limited.

[0037] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is “on” or “under” the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0039] In power electronics technology, the general control assembly mainly plays a control role on the whole system, and the drive assembly is mainly responsible for driving the actuator or load to work. However, in the related technology, the layout of the drive assembly and the general control assembly is an integrated setting, which requires a large horizontal space and is not convenient to maintain.

[0040] Please refer to Figures 1 to 3 , Figure 1 is a plane schematic view of one side of an embodiment of the drive control assembly of the present application, Figure 2 is a plane schematic view of the other side of an embodiment of the drive control assembly of the present application, Figure 3 is a cross-sectional schematic view of an embodiment of the drive control assembly of the present application.

[0041] The embodiment of the present application provides a drive assembly, which comprises a general control assembly and a drive control assembly, the general control assembly and the drive control assembly are separately arranged, and the drive control assembly is connected with the general control assembly through a connecting device 200.

[0042] The general control assembly and the drive control assembly are separately arranged, and cooperate with each other to enable the inverter to normally operate.

[0043] Optionally, the general control assembly and the drive control assembly can be arranged in an overlapping manner, arranged side by side, etc., and the positions between the two can be flexibly arranged.

[0044] The drive assembly provided by the embodiment of the present application can flexibly adjust the positions of the general control assembly and the drive control assembly, and when any one needs to be maintained, only it needs to be maintained, without the need to replace and maintain the whole, so that the maintenance cost of any one can be saved, the cost of the drive assembly can be reduced, and the space occupied by the general control assembly can be reduced by arranging the positions of the general control assembly and the drive control assembly.

[0045] The drive control assembly is used for driving the inverter, for example, a power device.

[0046] The embodiment of the present application provides a drive control assembly for driving and controlling an inverter. The drive control assembly comprises a circuit board 100, a connecting device 200 and a plurality of drive units 300. The connecting device 200 is installed on the circuit board 100, and the connecting device 200 is configured to be connected with a general control assembly. The plurality of drive units 300 are installed on the circuit board 100, and the connecting device 200 and the plurality of drive units 300 are arranged along a first direction X. Each drive unit 300 comprises a plurality of drive circuits distributed along a second direction Y, each drive circuit comprises a transformer part 310 and a drive control part 320, the transformer part 310 is connected between the connecting device 200 and the drive control part 320, and the first direction X intersects the second direction Y.

[0047] Each drive unit 300 includes a plurality of drive circuits, and the plurality means at least two.

[0048] An external DC power supply, i.e., the general control assembly, supplies power to the voltage conversion part 310, and the voltage output by the voltage conversion part 310 is input to at least the drive control part 320. The voltage conversion part 310 provides a drive voltage to the isolation area of the drive control part 320. The external DC power supply, i.e., the general control assembly, can also directly provide a non-isolation area power supply to at least the drive control part 320.

[0049] The angle between the first direction X and the second direction Y includes 90 degrees, 80 degrees, 100 degrees, etc. Optionally, the first direction X includes the extension direction of the circuit board 100, and the second direction Y includes the direction perpendicular to the extension direction of the circuit board 100.

[0050] The drive control assembly provided by the embodiments of the present application is separately arranged. If the drive control assembly needs to be maintained, the drive control assembly can be individually replaced and repaired. The position of the drive control assembly is flexibly arranged. Compared with the related art, since the drive control assembly is fixedly connected with the general control assembly as an integrated structure, the position of the drive control assembly provided by the embodiments of the present application can be flexibly adjusted. The separate drive control assembly can be reused, which is beneficial to cost reduction.

[0051] In some embodiments, the voltage conversion part 310 and the drive control part 320 are arranged along the second direction Y. The voltage conversion part 310 is arranged at the edge position of the circuit board 100, and the drive control part 320 is located on the side away from the edge position of the voltage conversion part 310.

[0052] The drive control assembly provided by the embodiments of the present application is arranged by arranging the voltage conversion part 310 and the drive control part 320 along the second direction Y, so that the voltage conversion part 310 and the drive control part 320 are arranged in an orderly structure, which is beneficial to the manufacturing of the drive control assembly, and the layout is reasonable, thereby suppressing the interference between the voltage conversion part 310 and the drive control part 320.

[0053] In some embodiments, the connection device 200 includes a first output end and a second output end, and the voltage conversion part 310 is connected with the first output end. The drive control part 320 includes a first drive part 321 and a second drive part 322. The first drive part 321 is connected with the voltage conversion part 310, and the voltage conversion part 310 is configured to provide an isolation power supply to the first drive part 321. The second drive part 322 is connected with the second output end, and the second output end is configured to provide a non-isolation power supply to the second drive part 322.

[0054] The connection between the first driving part 321 and the voltage transformation part 310 is connected by a wire or other connecting line, and the connection between the second driving part 322 and the second output end is connected by a wire or other connecting line.

[0055] The driving control assembly provided by the embodiment of the present application realizes the complete function of the driving control assembly through the setting of the first output end, the second output end, the first driving part 321 and the second driving part 322. The second output end is connected with the second driving part 322, and the second output end is configured to provide a non-isolated power supply to the second driving part 322. The second driving part 322 realizes communication with the general control assembly, thereby ensuring the normal work of the general control assembly. The first driving part 321 receives the voltage from the voltage transformation part 310 and realizes the functions of driving the inverter and parameter sensing. The first driving part 321 and the second driving part 322 are cooperatively arranged to enable the normal operation of the circuit.

[0056] In some embodiments, the voltage transformation part 310, the first driving part 321 and the second driving part 322 are arranged in sequence along the second direction Y, and the voltage transformation part 310 is arranged close to the edge position of the circuit board 100.

[0057] The driving control assembly provided by the embodiment of the present application is arranged with the voltage transformation part 310 close to the edge position of the circuit board 100, and the second driving part 322 is arranged close to the middle region of the circuit board 100. The voltage transformation part 310, the first driving part 321 and the second driving part 322 of each driving circuit are arranged as described above. Since the second driving part 322 is directly connected with the connecting device 200, the connecting line is arranged at the middle position of the circuit board 100, thereby realizing the connection between the second driving part 322 and the connecting device 200, making the wiring of the driving control assembly compact and the arrangement of the devices reasonable.

[0058] In some embodiments, the driving control assembly further comprises a through hole 400, which is arranged between the first driving part 321 and the second driving part 322 and penetrates the circuit board 100. At least part of the through hole 400 extends along the first direction X.

[0059] The length of the through hole 400 along the second direction Y can be adjusted according to actual needs.

[0060] Of course, the extension mode of the through hole 400 is not limited to the second direction Y, and the number of the through hole 400 includes one, two or even multiple.

[0061] The driving control assembly provided by the embodiment of the present application is arranged with the through hole 400, which is beneficial to increasing the distance between the first driving part 321 and the second driving part 322, increasing the creepage distance, reasonably arranging the devices and ensuring that the first driving part 321 can normally drive the inverter.

[0062] In some embodiments, the transformer part 310 comprises a transformer driving circuit 311, a transformer 312. The transformer driving circuit 311 is connected with the first output end, the transformer 312 is located between the transformer driving circuit 311 and the first driving part 321, and the transformer 312 is connected with the transformer driving circuit 311 and the first driving part 321.

[0063] The transformer driving circuit 311 comprises a transformer 312 driving chip and a connection circuit.

[0064] The connection device 200 supplies power to the transformer 312 driving chip in the transformer circuit, and the transformer 312 driving chip provides two output transistor signals of two complementary outputs alternately turned on and off, which are input to the transformer 312 to drive the transformer 312.

[0065] The driving control assembly provided by the embodiments of the present application realizes the connection with the first output end through the transformer driving circuit 311, so that the power supply is transmitted to the transformer 312, which is conducive to the connection of the total control assembly with the transformer part 310 through the connection device 200.

[0066] Please refer to Figure 4 , which is a circuit schematic diagram of an embodiment of the driving control assembly of the present application. Figure 4

[0067] In some embodiments, the driving circuit further comprises a rectifier circuit, the rectifier circuit is located between the transformer 312 and the first driving part 321, and the rectifier circuit is connected with the transformer 312 and the first driving part 321.

[0068] The voltage output by the transformer 312 forms an isolation voltage through the rectifier circuit, realizing the DC / DC function.

[0069] The driving control assembly provided by the embodiments of the present application outputs the isolation voltage through the setting of the rectifier circuit, so as to ensure that the output direct current meets the power demand of the inverter.

[0070] In some embodiments, the driving circuit further comprises a voltage divider, the voltage divider is located between the rectifier circuit and the first driving part 321, and the voltage divider is connected with the rectifier circuit and the first driving part 321.

[0071] The voltage divider receives the isolation voltage from the rectifier circuit and divides it into positive and negative isolation voltages to the first driving part 321. Optionally, the voltage divider comprises a voltage stabilizing tube, a resistor, etc.

[0072] The driving control assembly provided by the embodiments of the present application realizes the voltage division of the isolation voltage through the voltage divider to output to the first driving part 321, meeting the power demand of the inverter.

[0073] ​In some embodiments, the drive control assembly further comprises a detection part 500, the detection part 500 is installed on the circuit board 100, the detection part 500 comprises an input end and a third output end, the input end is configured to be connected with the bus capacitor, and the third output end is connected with the connecting device 200.

[0074] In the first direction X, the connecting device 200, the plurality of drive units 300 and the detection part 500 are arranged in sequence.

[0075] The detection part 500 comprises a detection voltage circuit 510, a voltage sampling circuit 520, a voltage comparator and an integrated isolation amplifier. The detection voltage circuit 510 comprises a first isolation optocoupler, and is configured to detect a bus capacitor voltage value, and then output a high or low level through the voltage comparator and the first isolation optocoupler, so as to realize communication with the master control assembly through the connecting device 200, thereby realizing detection of the bus voltage.

[0076] The voltage sampling circuit 520 can also convert the detected bus voltage value into a corresponding numerical value through the integrated isolation amplifier, and transmit the numerical value to the connecting device 200 through the connecting device 200, thereby realizing reading of the bus voltage value.

[0077] The drive control assembly provided by the embodiment of the application realizes detection of the bus voltage in the circuit through the detection part 500, thereby realizing real-time monitoring of the bus voltage value, and when the bus voltage value is abnormal, the circuit can be repaired in real time, thereby preventing the circuit from being dangerous.

[0078] In some embodiments, the drive control assembly further comprises an active discharge part 600, the active discharge part 600 is installed on the circuit board 100, the active discharge part 600 is connected with the connecting device 200, and the master control assembly is configured to turn on the active discharge part 600 to reduce the bus voltage.

[0079] In the first direction X, the connecting device 200, the plurality of drive units 300, the detection part 500 and the active discharge part 600 are arranged in sequence.

[0080] The active discharge part 600 comprises a resistance group 610, a power transistor 620 and a second isolation optocoupler 630.

[0081] The active discharge part 600 is used to realize the voltage in the bus capacitor is reduced to a safe voltage in a certain time, when the bus capacitor does not receive power, the total control assembly transmits signals to the active discharge part 600 through the connecting device 200, the isolation optocoupler realizes the function of opening the active discharge function and makes the power transistor 620 conduct, so that the resistor group 610 and the power transistor 620 form a path on both ends of the bus capacitor to discharge, realizing the function of active discharge. The two pins of the connecting device 200 corresponding to the active discharge function are connected to the input pin of the second isolation optocoupler 630, one of the output pins is connected to the power supply pin, and the other is connected to the power transistor 620, which controls the working state of the whole active discharge part 600.

[0082] The driving control assembly provided by the embodiments of the present application has a protection function through the setting of the active discharge part 600, and the bus voltage value is reduced in time, reducing the phenomenon of overcurrent and overvoltage of the circuit.

[0083] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A drive control component for driving and controlling an inverter, characterized in that, The drive control component includes: Circuit board; A connection device is mounted on the circuit board and is configured to connect to the master control assembly; Multiple drive units are mounted on the circuit board. The connecting device and the multiple drive units are arranged along a first direction. Each drive unit includes multiple drive circuits distributed along a second direction. Each drive circuit includes a transformer part and a drive control part. The transformer part is connected between the connecting device and the drive control part. The first direction and the second direction intersect.

2. The drive control component according to claim 1, characterized in that, The transformer section and the drive control section are arranged along the second direction, with the transformer section located near the edge of the circuit board and the drive control section located on the side of the transformer section away from the edge.

3. The drive control component according to claim 1, characterized in that, The connecting device includes a first output terminal and a second output terminal, the transformer section is connected to the first output terminal, and the drive control section includes: A first drive section is connected to the transformer section, the transformer section being configured to provide isolated power to the first drive section; The second drive section is connected to the second output terminal, which is configured to provide non-isolated power to the second drive section.

4. The drive control component according to claim 3, characterized in that, The transformer section, the first drive section, and the second drive section are arranged sequentially along the second direction, with the transformer section positioned near the edge of the circuit board.

5. The drive control component according to claim 3, characterized in that, The drive control component further includes a through hole located between the first drive portion and the second drive portion, the through hole extending through the circuit board, and at least a portion of the through hole extending along the first direction.

6. The drive control component according to claim 3, characterized in that, The transformer section includes: A transformer drive circuit is connected to the first output terminal; A transformer is located between the transformer drive circuit and the first drive section, and the transformer is connected to the transformer drive circuit and the first drive section.

7. The drive control component according to claim 6, characterized in that, The driving circuit further includes a rectifier circuit, which is located between the transformer and the first driving section, and is connected to both the transformer and the first driving section. The driving circuit further includes a voltage divider, which is located between the rectifier circuit and the first driving section, and is connected to the rectifier circuit and the first driving section.

8. The drive control component according to any one of claims 1 to 7, characterized in that, The drive control component also includes a detection section, which is mounted on the circuit board. The detection section includes an input terminal and a third output terminal. The input terminal is configured to be connected to the bus capacitor, and the third output terminal is connected to the connecting device.

9. The drive control component according to any one of claims 1 to 7, characterized in that, The drive control component also includes an active discharge section, which is mounted on the circuit board and connected to the connecting device. The main control component is configured to turn on the active discharge section to reduce the bus voltage.

10. A drive assembly, characterized in that, include: master control components; The drive control component according to any one of claims 1 to 9, wherein the main control component and the drive control component are separately disposed, and the drive control component is connected to the main control component through the connecting device.

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