CN116111785A - Controller with external commutation and axial field motor - Google Patents

Abstract

The invention provides a controller with external rectification and an axial magnetic field motor, wherein the controller comprises a controller module, and the controller module comprises a control shell and a drive control circuit board arranged in the control shell; the rectifying module comprises a rectifying shell and a rectifying circuit board arranged in the rectifying shell; the rectification module is independently arranged outside the controller module, and the controller module and the rectification module are connected through a flexible cable; the control shell is provided with a motor mounting surface, the controller module is integrally mounted with the motor module through the motor mounting surface, the drive control circuit board comprises an inverter circuit part, a power circuit part and a control circuit part, the inverter circuit part, the power circuit part and the control circuit part enclose into a circular drive control circuit board, the thickness and the volume of the controller module are effectively reduced, the rectifier module is connected with one side of the thickness direction of the controller module in an elongated mode, the axial size is further reduced, the overall occupied space is further reduced, and the application occasion is increased.

Description

Controller with external commutation and axial field motor

This application was filed on November 11, 2021, with the application number 2021113321759, and a divisional application for an invention patent entitled "Controller with External Rectification and Axial Magnetic Field Motor".

technical field

The invention relates to the field of axial magnetic field motors, in particular to a controller with an external rectifier and an axial magnetic field motor.

Background technique

Compared with traditional motors, axial field motors have the characteristics of small axial volume and high torque density, and are suitable for installation spaces with small axial dimensions. Among them, the axial field motor is connected to the controller, and the operation of the axial field motor is controlled by the controller. Most of the controllers are fixed to the axial field motor by means of built-in or external. This built-in method is likely to cause the volume of the axial field motor to increase, making It takes up a lot of space, and the existing external method needs to set up an independent connection line to connect the axial magnetic field motor and the controller, so it is necessary to reserve a space for wiring, which also causes the disadvantage of taking up a lot of space.

In addition, the existing controller includes a casing, and a drive circuit board and a control board circuit arranged in the casing, wherein a rectification module with a large filter capacitor is integrated on the drive circuit board, and the rectification module is used to rectify the alternating current The capacitor acts on the rectifier module and is used to filter out unnecessary AC components in the DC power supply to smooth the DC power. Since the controller is equipped with a driver board and a control board inside, and the driver board has a large filter capacitor, the volume of the controller is relatively large. The axial magnetic field motor not only increases the overall volume, but also weakens the advantage of the small size of the axial magnetic field motor, and reduces the applicable occasions of the axial magnetic field motor.

Contents of the invention

In order to solve the above problems, the present invention provides a controller with external rectification and an axial field motor that reduces the overall volume and increases the applicable occasions.

According to an object of the present invention, the present invention provides a controller with external rectification, comprising:

A controller module, the controller module includes a control housing and a drive control circuit board arranged in the control housing;

A rectification module, the rectification module includes a rectification housing and a rectification circuit board arranged in the rectification housing;

The rectification module is independently arranged outside the controller module, and the former two are connected by a flexible cable;

The control housing is provided with a motor mounting surface, and the controller module is integrated with the motor module through the motor mounting surface;

The drive control circuit board includes an inverter circuit part, a power supply circuit part and a control circuit part, and the inverter circuit part, the power supply circuit part and the control circuit part are fan-shaped to form a circle of the drive control circuit board.

As a preferred technical solution, the control housing has an inner control end surface and an outer control end surface, and a control periphery extending between the inner control end surface and the outer control end surface, the inner control end surface and the The thickness of the controller module is defined between the outer control end faces, the rectification module is located on one side of the thickness direction of the controller module, the flexible cable includes a DC cable, and the rectification module is connected to the rectification module. The DC cable is extended and connected to the outer control end face in such a way that the length direction of the DC cable is consistent, and the inner control end face is the motor installation surface.

As a preferred technical solution, the control housing is divided into a bottom case and a cover plate along its thickness direction, and the bottom case and the cover plate are fixed by screws or adhesives.

As a preferred technical solution, cooling fins are also arranged on the outer control end surface.

According to another object of the present invention, the present invention also provides an axial field motor, including the controller with external rectification in the above embodiment, and the axial field motor also includes:

A motor module, the motor module is connected to the controller module through a motor cable.

As a preferred technical solution, the motor module includes a motor housing, the motor housing has an inner motor end face, an outer motor end face, and a motor extending between the inner motor end face and the outer motor end face The periphery of the motor, the thickness of the motor module is defined between the end face of the inner motor and the end face of the outer motor, and the controller module is installed on the motor module in such a way that the inner control end face fits the end face of the inner motor, And the peripheral edge of the motor fits and corresponds to the control peripheral edge portion of the controller module.

As a preferred technical solution, the periphery of the motor includes a motor circular edge portion and a motor convex portion adjacent to each other, the control peripheral edge includes a control circular edge portion and a control convex portion adjacent to each other, and the motor circular edge portion The edge portion is attached to the control round edge portion, the motor protrusion and the control protrusion face the same direction, and the motor protrusion protrudes outside the control protrusion, so that the motor protrusion A connection space for accommodating the motor cable is formed between the control protrusion and the control protrusion, and the connection space is located in the area surrounded by the periphery of the motor.

As a preferred technical solution, a control connection port is provided on the inner motor end surface corresponding to the motor protrusion, and a motor connection port is provided on the outer control end surface corresponding to the control protrusion, and the motor cable is connected in a U-shape Between the control connection port and the motor connection port.

As a preferred technical solution, a rectification connection port and a communication connection port are also provided on the external control end surface, the rectification module is detachably connected to the rectification connection port through a DC cable, and the host computer is detachably connected to the rectification connection port through a communication cable on the communication port.

As a preferred technical solution, the motor connection port, the rectification connection port, and the communication connection port are arranged side by side on the outer control end surface corresponding to the control protrusion.

Compared with the prior art, this technical solution has the following advantages:

The controller module carries the drive control circuit, and the rectification module carries the rectification circuit, that is, the thickness of the controller module is effectively reduced by the way that the rectification module is independently placed outside the controller module and volume, in addition, the rectifier module is located on one side of the controller module in the thickness direction, reducing the overall radial dimension, and the controller module is integrated with the motor module through the motor mounting surface, further reducing the axial dimension, Further, the overall occupied space is reduced, and applicable occasions are increased. In addition, the rectifier module is arranged in the direction of the axis of the controller module or at any position according to installation requirements, and the combinations are flexible and diverse.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the structural representation of axial field motor of the present invention;

Fig. 2 is a schematic structural diagram of the combination of the motor module and the controller module of the present invention;

Fig. 3 is the structural representation of controller module described in the present invention;

Fig. 4 is the structural representation of drive control circuit board described in the present invention;

Fig. 5 is the structural representation of rectification circuit board of the present invention;

Fig. 6 is a structural schematic diagram of the motor module of the present invention;

Fig. 7 is the front view of the motor module of the present invention;

Fig. 8 is a sectional view along the line A-A in Fig. 7 .

Detailed ways

The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

first embodiment

As shown in Figure 1, Figure 4 and Figure 5, the controller with external rectification includes:

A controller module 100, the controller module 100 includes a control housing 110 and a drive control circuit board 120 arranged in the control housing 110;

A rectification module 200, the rectification module 200 includes a rectification housing 210 and a rectification circuit board 220 arranged in the rectification housing 210, the rectification module 200 is located on one side of the thickness direction of the controller module 100;

The rectification module 200 is independently arranged outside the controller module 100, and the former two are connected by a flexible cable;

The control housing 110 is provided with a motor installation surface, and the controller module 100 is integrated with the motor module 300 through the motor installation surface.

Wherein the controller module 100 carries the drive control circuit, and the rectification module 200 carries the rectification circuit, that is, the rectification module 200 is independently placed outside the controller module 100, effectively reducing the The thickness and volume of the controller module 100, in addition, the rectification module 200 is located on one side of the thickness direction of the controller module 100, reducing the overall radial size, and the controller module 100 is connected to the motor module 300 through the motor mounting surface The installation is integrated to further reduce the axial dimension, thereby reducing the overall occupied space and increasing the applicable occasions.

As shown in Figure 1, the control housing 110 has an inner control end surface 1101 and an outer control end surface 1102, and a control peripheral edge 1103 extending between the inner control end surface 1101 and the outer control end surface 1102, the The thickness of the controller module 100 is defined between the inner control end surface 1101 and the outer control end surface 1102, the flexible cable includes a DC cable 410, the rectifier module 200 uses the rectifier module 200 and the DC cable 410 It is extended and connected to the outer control end surface 1102 in a consistent length direction, and the inner control end surface 1101 is a motor installation surface.

Specifically, the rectification module 200 extends along the length direction of the DC cable 410 , forming an elongated rectification module 200 . The cross-section of the DC cable 410 is circular, the cross-section of the rectification module 200 is rectangular, and the area of the cross-section of the rectification module 200 is slightly larger than the area of the cross-section of the DC cable 410, so that The volume of the rectification module 200 is small, which further reduces the overall size and improves applicability.

More specifically, the DC cable 410 is a flexible DC cable, so the rectifier module 200 and the controller module 100 can be assembled in various ways. In one embodiment, the axis of the rectification module 200 is arranged parallel to the axis of the controller module 100, which not only has a compact structure and is beautiful, but also reduces the overall radial size. In another embodiment, the rectification module 200 and the controller module 100 are arranged in a decentralized manner, for example, separate installation brackets are provided for installation, so that the assembly methods are flexible and changeable, and can meet different usage scenarios.

Continuing to refer to FIG. 1 , cooling fins are also provided on the outer control end surface 1102 . To improve the heat dissipation performance of the controller module 100 , the shapes of the heat dissipation fins are various, which are not limited here.

As shown in FIG. 1 , the control housing 110 is divided into a bottom case 111 and a cover plate 112 along its thickness direction, and the bottom case 111 and the cover plate 112 are fixed by screws or adhesives. That is, the control housing 110 is a split structure, so that the drive control circuit board 120 can be disassembled into the control housing 110 and maintained.

Wherein, the inner control end surface 1101 corresponds to the end surface of the cover plate 112 away from the bottom shell 111, and the outer control end surface 1102 corresponds to the end surface of the bottom shell 111 away from the cover plate 112, namely The rectification module 200 is connected to an end surface of the bottom case 111 away from the cover plate 112 .

Specifically, the size of the bottom case 111 along the thickness direction of the control housing 110 is larger than the size of the cover plate 112 along the thickness direction of the control case 110, wherein the bottom case 111 and the cover The board 112 is fixed by screws or adhesives, so that a cavity for accommodating the driving control circuit board 120 is formed between the bottom case 111 and the cover board 112 .

In summary, the controller module 100 carries the drive control circuit, and the rectification module 200 carries the rectification circuit, that is, the rectification module 200 is independently externally placed on the controller module 100, effectively Reduce the thickness and volume of the controller module 100, and the rectifier module 200 is located on one side of the controller module 100 in the thickness direction, reducing the overall radial size, and the controller module 100 passes through the motor installation surface It is integrated with the motor module 300 to further reduce the axial size, thereby reducing the overall occupied space and increasing the number of applicable occasions. Moreover, the control housing 110 is composed of the bottom case 111 and the cover plate 112 , which are fixed by screws or adhesives, so as to facilitate the disassembly and maintenance of the drive control circuit board 120 . In addition, the rectification module 200 is arranged in the axial direction of the controller module 100 or at any position according to the installation requirements, and the combinations are flexible and diverse.

As shown in Figure 1, the axial field motor includes the controller with external rectification of the above embodiment, and the axial field motor also includes:

A motor module 300 , the motor module 300 is connected to the controller module 100 through a motor cable 420 .

Since the axial field motor adopts the axial field motor of the above embodiment, the beneficial effects of the axial field motor brought by the axial field motor refer to the above embodiment.

In one embodiment, the motor module 300 includes a motor housing 310, the motor housing 310 has an inner motor end face 3101, an outer motor end face 3102, and an inner motor end face 3101 and an outer motor end face 3102. The motor peripheral edge 3103 extending between the motor end faces 3102, the thickness of the motor module 300 is defined between the inner motor end face 3101 and the outer motor end face 3102, and the inner control end face 1101 of the controller module 100 fits the The inner motor end surface 3101 is installed on the motor module 300 , and the motor peripheral edge 3103 is partly attached to the control peripheral edge 1103 of the controller module 100 .

That is, the motor module 300, the controller module 100, and the rectification module 200 are axially arranged, and the motor periphery 3103 is partly attached to the control periphery 1103 of the controller module 100, and the rectification The module 200 is roughly located in the area surrounded by the control periphery 1103, effectively reducing the overall radial size, reducing the overall occupied space, and increasing the number of applicable occasions. In addition, because the motor module 300 and the controller module 100 are closely attached, cables can be saved.

In another embodiment, the motor module 300 , the controller module 100 and the rectification module 200 are arranged in a dispersed manner, and mounting brackets can also be provided independently for installation.

It can be seen from the above that the axial magnetic field motor has a compact and beautiful structure. By changing the structural parameters of the modules, it can be flexibly combined or separated, making the overall layout more flexible and the overall layout more reasonable, thereby enriching the usage scenarios of the axial magnetic field motor. .

As shown in Figure 1, the motor peripheral edge 3103 includes a motor circular edge 31031 and a motor convex portion 31032 adjacent to each other, and the control peripheral edge 1103 includes a control circular edge portion 11031 and a control convex portion adjacent to each other. 11032, the motor rounded part 31031 and the control rounded part 11031 fit correspondingly, the motor convex part 31032 and the control convex part 11032 face the same direction, and the motor convex part 31032 protrudes from the Outside the control protrusion 11032, a wiring space for accommodating the motor cable 420 is formed between the motor protrusion 31032 and the control protrusion 11032, and the wiring space is located in the area surrounded by the motor periphery 3103 Inside.

Wherein the control round edge 11031 fits and corresponds to the motor periphery 3103 , and the control protrusion 11032 , the motor cable 420 and the wiring space are located in the area surrounded by the motor periphery 3103 . Prevent the motor cable 420 from protruding outside the control periphery 1103 to increase the overall size and affect the versatility of the use scene. In addition, the motor protrusion 31032 and the control protrusion 11032 face the same direction, shortening the length of the motor cable 420, not only reducing the cost, but also further dissipating heat from the motor cable 420, which affects the overall size.

As shown in FIG. 1 , the inner motor end face 3101 corresponding to the motor protrusion 31032 is provided with a control connection port 330 , and the outer control end face 1102 corresponding to the control protrusion 11032 is provided with a motor connection port 131 . The motor cable 420 is connected between the control connection port 330 and the motor connection port 131 in a U shape.

Avoid wiring interference, so that the motor cable 420 and the subsequent DC cable 410 are conveniently connected, and at the same time ensure that the motor cable 420 is located in the area surrounded by the motor periphery 3103, so that the two are arranged compactly.

As shown in Figure 1, the external control end surface 1102 is also provided with a rectification connection port 132 and a communication connection port 133, the rectification module 200 is detachably connected to the rectification connection port 132 through a DC cable 410, and the host computer passes through The communication cable 430 is detachably connected to the communication connection port 133 .

Preferably, the motor connection port 131 , the rectification connection port 132 and the communication connection port 133 are arranged side by side on the outer control end surface 1102 corresponding to the control protrusion 11032 . In order to facilitate centralized display and management, and improve wiring efficiency.

In summary, the motor module 300, the controller module 100 and the rectification module 200 can be arranged axially or dispersedly, which not only achieves the characteristics of compact structure and beautiful appearance, but also is easy to disassemble and maintain, and The combination methods are flexible and changeable to meet different usage scenarios.

second embodiment

As shown in Figures 2 and 3, the axial field motor includes:

A motor module 300, the motor module 300 includes a motor housing 310, the motor housing 310 includes a motor rear housing 312, a motor front housing 311 and a plurality of motor connection groups 313, a plurality of the motors The connecting group 313 is located at the motor periphery 3103 of the motor casing 310 to tie the motor rear casing 312 and the motor front casing 311 ;

A controller module 100, the controller module 100 includes a control housing 110, the control housing 110 includes a bottom case 111, a cover plate 112 and a plurality of control connection groups 113, the control connection groups 113 The number is less than the number of the motor connection groups 313, a plurality of the control connection groups 113 are located on the control periphery 1103 of the control housing 110, and each of the control connection groups 113 tie the bottom case 111 and the cover The motor connection group 313 is connected to the board 112 at the same time, so that the controller module 100 is installed on the motor module 300 in such a way that the cover plate 112 is attached to the motor rear shell 312, and the control peripheral edge 1103 corresponds to the peripheral edge 3103 of the motor.

In addition to connecting the bottom case 111 and the cover plate 112, the control connection group 113 is also connected to the motor connection group 313 at the same time, so there is no need to add the motor module 300 and the controller module 100 The connection structure between them not only simplifies the overall size, but also reduces the axial size, thereby reducing the overall occupied space and increasing the applicable occasions.

As shown in Figures 2 and 3, the control connection group 113 includes a bottom shell connecting ear 1131, a cover plate connecting ear 1132 and an external fastener, and the bottom shell connecting ear 1131 protrudes outward from the The peripheral edge of the bottom case 111, the cover plate connecting ear 1132 protrudes outward from the peripheral edge of the cover plate 112, and the external fastener pulls the bottom case connecting ear 1131 and the cover plate connecting ear 1132, and locked on the motor connecting group 313.

The external fasteners can be screws, and the screws pass through the connecting ear 1131 of the bottom case and the connecting ear 1132 of the cover plate in turn until they are screwed to the motor connecting group 313, so as to realize the connection between the bottom case 111 and the connecting ear 1132. The cover plate 112 is fixed, and the controller module 100 is fixed on the motor module 300 at the same time.

Specifically, the thickness of the cover plate connecting ear 1132 is consistent with that of the cover plate 112 and is relatively thin, the thickness of the bottom shell connecting ear 1131 is smaller than the thickness of the bottom shell 111, and when the cover plate 112 and the When the bottom case 111 abuts, the cover plate connection ear 1132 and the bottom case connection ear 1131 abut against, preventing the outer connection of the bottom case connection ear 1131 and the cover plate connection ear 1132 from being tightly connected. The firmware is exposed, which affects the connection strength and service life.

More specifically, the connecting ear 1131 of the bottom case is provided with a counterbore 11311 through which the external fastener passes, so that the external fastener is hidden in the control connection group 113 and the motor connection group 313 Inside, refer to Figure 3. It not only improves the aesthetics and connection strength, but also prevents the external fasteners from being exposed and affecting the service life.

As shown in FIG. 3 , the control peripheral edge 1103 includes a control round edge portion 11031 and a control convex portion 11032 adjacent to each other, and the control round edge portion 11031 fits and corresponds to the motor peripheral edge 3103 . A plurality of the control connection groups 113 are arranged at intervals on the control round edge portion 11031 .

The control protrusion 11032 is used for wiring, and it is located in the area surrounded by the periphery 3103 of the motor. And described control circle portion 11031 and described motor periphery 3103 fit correspondingly, and then can make described control connection group 113 that is arranged on described control circle portion 11031, and it and the motor on described motor periphery 3103 Connection group 313 corresponds.

Continuing to refer to FIG. 2 , there is at least one motor connection group 313 between two adjacent control connection groups 113 . It can be seen that the number of the control connection groups 113 is less than the number of the motor connection groups 313 , further simplifying the structure of the controller module 100 while ensuring the connection performance between the controller module 100 and the motor module 300 .

As shown in FIG. 2 and FIG. 3 , the bottom case 112 and the cover plate 111 are sealed by a sealing groove, a gasket or a sealant. Taking the sealant as an example, the joint surface of the bottom case 112 and the cover plate 111 is coated with sealant to improve the sealing performance of the connection between the two, thereby achieving a higher waterproof level.

As shown in FIG. 2 and FIG. 3 , cooling fins are provided on the motor housing 310 and/or the control housing 110 , thereby improving heat dissipation performance. For example, cooling fins are provided on the outer control end surface 1102 and the motor periphery 3103 .

Preferably, a drive control circuit board 120 is installed inside the control housing 110 , and a thermal conductive material is filled between the drive control circuit board 120 and the inner wall of the control housing 110 . The heat-conducting material includes heat-conducting silicone grease, which is potted in the control housing 110 to further improve heat dissipation performance.

As shown in FIG. 2 and FIG. 3 , the end surface of the bottom shell 111 away from the motor housing 310 is an outer control end surface 1102 , and a plurality of port portions 11021 for receiving ports are provided on the outer control end surface 1102 . The ports include the motor connection port 131 , the rectification connection port 132 , the communication connection port 133 , etc., and they are arranged side by side on the outer control end surface 1102 corresponding to the control protrusion 11032 . In order to facilitate centralized display and management, and improve wiring efficiency.

In summary, the control connection group 113 not only connects the bottom case 111 and the cover plate 112, but also realizes the connection with the motor connection group 313 at the same time, so there is no need to add the motor module 300 and the The above connection structure between the controller modules 100 not only simplifies the overall size, but also reduces the axial size, thereby reducing the overall occupied space and increasing the applicable occasions. In addition, heat dissipation performance is improved through heat dissipation fins and potting heat conduction materials. And a sealing groove, a sealing gasket or a sealant is provided between the bottom case 111 and the cover plate 112 to further improve the sealing performance.

third embodiment

As shown in Figures 1 to 3, the controller module 100 includes a control housing 110, the control housing 110 has an inner control end surface 1101 and an outer control end surface 1102, and the inner control end surface 1101 and the control peripheral edge 1103 extending between the outer control end surface 1102, the control peripheral edge 1103 includes a control round edge portion 11031 and a control convex portion 11032, the control convex portion 11032 corresponds to the outer control A plurality of port portions 11021 are provided on the end surface 1102 , and the side of the control convex portion 11032 away from the control round edge portion 11031 forms a wiring space for accommodating cables connected to the port portions 11021 .

The cables include motor cables 420 connecting the motor module 300 and the controller module 100, so that the cables are connected from the connection space near the port portion 11021, which not only saves cables, but also prevents connection interference. In addition, it also prevents the cable connection from being messy, resulting in a defect that the overall volume of the controller module 100 becomes larger, thereby affecting the installation scene.

As shown in FIG. 3 , the arc of the control circular edge portion 11031 is larger than 200°, so that the control peripheral edge 1103 is roughly circular. In this way, the control round portion 11031 of the controller module 100 can fit and correspond to the motor peripheral edge 3103 of the motor module 300, reducing the overall size so as to be suitable for an installation space with a short axial dimension. Refer to Figure 2.

As shown in FIG. 3 , the dimension of the control convex portion 11032 along the circumferential direction of the control circular edge portion 11031 is 4 times or more than the dimension of the control convex portion 11032 along the radial direction of the control circular edge portion 11031 , Make the control convex part 11032 rectangular, so that a plurality of the port parts 11021 are arranged along the longitudinal direction of the rectangular control convex part 11032, so that the port part 11021 to the wiring space The distance between them is short, which saves cables and facilitates wiring.

Furthermore, the size of the control convex portion 11032 in the radial direction of the control round edge portion 11031 is smaller than twice the diameter of the port portion 11021 . In order to make the size of the control convex portion 11032 along the radial direction of the control round edge portion 11031 smaller, to prevent the control convex portion 11032 from exceeding the area surrounded by the motor periphery 3103, thereby increasing the overall size and affecting the applicability of the installation environment properties, refer to Figure 2.

Furthermore, the port portion 11021 is located at a middle position of the control convex portion 11032 along the radial dimension of the control round edge portion 11031 . The layout space is rationally utilized so that the distance between each port portion 11021 and the wiring space is consistent and short, saving cables and improving wiring efficiency.

Continuing to refer to FIG. 3 , the side of the control convex portion 11032 away from the control round edge portion 11031 is horizontal to prevent its irregularities from affecting the routing of cables.

As shown in FIG. 3 , the thickness of the controller module 100 is defined between the inner control end surface 1101 and the outer control end surface 1102 , and the thickness of the controller module 100 is smaller than the radius of the control round edge portion 11031 , so that the controller module 100 is flat. In order to reduce the axial size of the controller module 100 and make it axially arranged with the motor module 300, the overall size is reduced and the usage scenarios are enriched.

As shown in FIG. 3 , cooling fins are provided on the outer control end surface 1102 corresponding to the control circular edge portion 11031 to improve heat dissipation performance.

To sum up, the cable includes the motor cable 420 connecting the motor module 300 and the controller module 100, so that the cable is connected from the wiring space close to the port part 11021, which not only saves cables, but also Prevent wiring interference. In addition, it also prevents the cable connection from being messy, resulting in a defect that the overall volume of the controller module 100 becomes larger, thereby affecting the installation scene.

Fourth embodiment

As shown in Figure 8, the generalized motor connection group 313 includes a front shell connector 3131, a rear shell connector 3132, a motor fastener and an external fastener, the front shell connector 3131 and The rear case connector 3132 abuts and forms a multi-stage connection channel 3133 respectively passing through the front case connector 3131 and the rear case connector 3132, the motor fastener is connected and hidden in the multiple In the middle of the stage connection channel 3133, the front shell connector 3131 and the rear shell connector 3132 are tied, and the external fasteners are screwed on both sides of the multi-stage connection channel 3133 to connect the external equipment It is fixed on the front shell connector 3131 or the rear shell connector 3132 .

It can be seen that the motor connection group 313 not only realizes the connection between the front shell connector 3131 and the rear shell connector 3132 , but also realizes the connection with external devices, and the external devices include a controller module and the like. Preventing the separation of the two connection structures makes the overall structure redundant and wastes materials, leading to an increase in cost. However, this application integrates two connection structures, which not only reduces the overall size, but also achieves generalization and meets the requirements of various installation methods in different usage scenarios.

As shown in FIG. 8 , the front shell connector 3131 has a front shell inner end surface 31311 and a front shell outer end surface 31312 , and a front shell channel 31313 passing through the front shell inner end surface 31311 and the front shell outer end surface 31312 ;

The rear shell connector 3132 has a rear shell inner end surface 31321 and a rear shell outer end surface 31322, and a rear shell channel 31323 passing through the rear shell inner end surface 31321 and the rear shell outer end surface 31322. The front shell connector 3131 Connect the rear shell connector 3132 in such a way that the inner end surface 31311 of the front shell abuts against the inner end surface 31321 of the rear shell, and make the front shell channel 31313 and the rear shell channel 31323 form the multi-stage connecting channel 3133.

Specifically, the rear casing channel 31323 is sequentially divided into a primary threaded hole 313a, a secondary countersunk hole 313b and a tertiary threaded hole 313c from the inner end surface 31321 of the rear casing to the outer end surface 31322 of the rear casing;

The front casing channel 31313 is divided into a first-level counterbore 313d and a second-level threaded hole 313e from the inner end surface 31311 of the front casing to the outer end surface 31312 of the front casing.

In one embodiment, the head of the motor fastener is located in the primary counterbore hole 313d, and the tail of the motor fastener is threaded into the primary threaded hole 313a, so that the motor fastener is tied The front case connector 3131 and the rear case connector 3132 .

In another embodiment, the external fastener is screwed into the secondary threaded hole 313e, so that the external device is away from the rear case connector 3132 and fixed on the front case connector 3131 .

In another embodiment, the external fastener passes through the third-level threaded hole 313c, and is screwed into the first-level threaded hole 313a, so that the external device is away from the front shell connector 3131 and fixed on the On the rear case connector 3132.

In another embodiment, the external fastener is screwed into the tertiary threaded hole 313c, so that the external device is away from the front shell connector 3131 and fixed on the rear shell connector 3132.

From the above, it can be seen that the external device can be installed on the front shell connecting member 3131 by using the secondary threaded hole 313e, specifically abutting and fixing on the outer end surface 31312 of the front shell. And the external device is installed on the rear shell connector 3132 by using the third-level threaded hole 313c or the first-level threaded hole 313a, specifically abutting and fixing on the outer end surface 31322 of the rear shell. And the external fasteners screwed in the secondary threaded hole 313e, the tertiary threaded hole 313c and the primary threaded hole 313a are located on the axial side of the motor fastener, that is, the The external fasteners and the motor fasteners are simultaneously located in the multi-stage connection channel 3133 to realize the connection between the front shell connector 3131 and the rear shell connector 3132, as well as the motor connection group 313 and the external device connection, and the external device can be installed on the front shell connector 3131 or the rear shell connector 3132 to meet the requirements of various installation methods in different usage scenarios.

Continuing to refer to FIG. 8 , the apertures of the secondary threaded holes 313e and the tertiary threaded holes 313c are respectively larger than the apertures of the primary threaded holes 313a, so that the multi-stage connecting channels 3133 form a plurality of different sizes. The stepped hole meets the installation requirements of the motor firmware and the external fasteners, thereby realizing universal installation.

To sum up, the motor connection group 313 not only realizes the connection between the front shell connector 3131 and the rear shell connector 3132 , but also realizes the connection with external devices, and the external devices include a controller module and the like. Preventing the separation of the two connection structures makes the overall structure redundant and wastes materials, leading to an increase in cost. However, this application integrates two connection structures, which not only reduces the overall size, but also achieves generalization and meets the requirements of various installation methods in different usage scenarios.

As shown in Figures 6 to 8, the motor module 100, the motor module 100 also includes a motor housing 110, the motor housing 110 includes a plurality of motor connection groups 313 of the above-mentioned embodiments, and also includes A motor rear case 312 and a motor front case 311 , a plurality of motor connection groups 313 are located on the motor periphery 3103 of the motor housing 110 to tie the motor rear case 312 and the motor front case 311 .

Since the motor module 100 adopts the motor connection group 313 of the above-mentioned embodiment, the beneficial effects brought by the motor connection group 313 of the motor module 100 refer to the above-mentioned embodiment.

Referring to FIG. 6, at least one rotor and at least one stator are installed inside the motor housing 100, the rotor is fixed on the rotating shaft 320, the stator is sleeved on the rotating shaft 320, and the rotating shaft 320 is The motor front shell 311 is passed through.

Continuing to refer to FIG. 6 , the front shell connecting member 3131 is connected to the periphery of the motor front shell 311 , and both have the same dimension along the thickness direction of the motor module 100 and are flush with each other. The rear case connector 3132 is connected to the periphery of the motor rear case 312, and the dimensions of the two along the thickness direction of the motor module 100 are consistent and flush, so that the motor front case 311 and the motor rear case 312 is fixed by the motor connection group 313 , and the external equipment is fixed on the rear case 312 or the motor front case 311 by using the motor connection group 313 .

fifth embodiment

As shown in FIGS. 4 and 5 , the separated circuit board includes a drive control circuit board 120 and a rectifier circuit board 220 separated from each other, so that the rectifier circuit board 220 is independent of the drive control circuit board 120 set, and the drive control circuit board 120 and the rectification circuit board 220 are connected by cables.

The drive control circuit board 120 corresponds to the controller module 100 , and the rectification circuit board 220 corresponds to the rectification module 200 , refer to FIG. 1 . Compared with the prior art, the rectifier circuit board 220 is independently arranged relative to the drive control circuit board 120, so that the overall size of the drive control circuit board 120 is smaller, thereby reducing the thickness of the controller module 100, thereby Reduce the connecting wire harness of the controller, which is convenient for disassembly and installation.

As shown in FIG. 4 , the drive control circuit board 120 includes an inverter circuit part 121 , a power supply circuit part 122 and a control circuit part 123 .

The main device of the inverter circuit part 121 is a power module IPM, wherein the IPM is an advanced power switching device, which has the advantages of GTR (high power transistor) high current density, low saturation voltage and high voltage resistance, and MOSFET (field Effect transistors) have the advantages of high input impedance, high switching frequency and low drive power. Moreover, IPM integrates logic, control, detection and protection circuits inside, which is convenient to use, not only reduces the size of the system and development time, but also greatly enhances the reliability of the system. The main component of the power supply circuit part 122 is a DC-DC module, and the power supply module is a power supply that can be directly mounted on a printed circuit board, and is characterized in that it can be an application-specific integrated circuit, a digital signal processor, a microprocessor, memory, field programmable gate arrays, and other digital or analog loads. The control circuit part 123 mainly includes an MCU and its peripheral circuits, a motor current signal acquisition circuit, a motor speed signal acquisition circuit, a communication circuit, main components such as the main control chip MCU and logic chips required by other various circuits.

Further, the inverter circuit part 121, the power supply circuit part 122 and the control circuit part 123 are fan-shaped to enclose the circular drive control circuit board 120, so as to adapt to the roughly circular control circuit board 120. The housing 110 , referring to FIG. 3 , further reduces the thickness of the control housing 110 .

Further, the arc of the inverter circuit part 121 and the power circuit part 122 is 90°, and the arc of the control circuit part 123 is 180°, and the rational layout improves the compactness of the drive control circuit board 120, Realizing that the thickness of the controller module 100 is thin, thereby increasing its applicable environment.

Furthermore, the edge of the inverter circuit part 121 far away from the control circuit part 123 forms a rectangular driving connection part 124 opposite to the edge of the power circuit part 122 far away from the control circuit part 123 . The driving wiring part 124 is provided with a plurality of port parts 11021 corresponding to the control convex part 11032 to realize wiring.

As shown in FIG. 5 , the rectification circuit board includes an AC input part 221 , a filter circuit part 222 , an EMC circuit part 223 and a DC output part 224 .

The main components of the AC input part 221 are rectifier bridges, relays and the like. The main components of the filter circuit part 222 are filter capacitors and the like. The main components of the EMC circuit part 223 are common mode inductance coils, film capacitors and the like. The main components of the DC output part 224 are connection terminals and the like.

Further, the AC input part 221, the EMC circuit part 223 and the DC output part 224 surround the filter circuit part 222 to form a rectangular rectifying circuit board 220 to accommodate a rectangular parallelepiped rectification housing 210 .

Furthermore, the AC power input part 221 and the DC output part 224 are separately arranged on both sides of the filter circuit part 222, wherein the AC power input part 221 is L-shaped, and the DC output part 224 and the EMC The circuit parts 223 are in a straight shape, and the EMC circuit part 223 is located between the AC input part 221 and the DC output part 224 . The compact arrangement reduces the size of the rectifier circuit board to improve the applicability of its installation environment.

Specifically, the AC input part 221 and the DC output part 224 are located on the left and right sides of the filter circuit part 222, and the EMC circuit part 223 is located on the front side of the filter circuit part 222, so that the AC power The input part 221 , the EMC circuit part 223 and the DC output part 224 surround the filter circuit part 222 to form the rectangular rectifier circuit board 220 .

More specifically, the AC input part 221 includes an AC connection part 2211 , the DC output part 224 includes a DC connection part 2241 , and the AC connection part 2211 and the DC connection part 2241 are arranged diagonally. In order to facilitate the independent wiring of the two, there will be no interference.

As shown in FIG. 1 , FIG. 4 and FIG. 5 , the DC connecting portion 2241 of the rectifying circuit board 220 is opposite to the driving connecting portion 124 and is connected by a cable.

In summary, the rectifier circuit board 220 is set independently from the drive control circuit board 120, so that the overall size of the drive control circuit board 120 is smaller, thereby reducing the thickness of the controller module 100, thereby enriching the The usage scenarios of the controller module. Compared with the structure of two layers of stacked circuit boards in the prior art, the connection harness of the controller is reduced. In addition, the rectifier circuit board 220 and the drive control circuit board 120 can be arranged randomly for easy disassembly and installation.

Sixth embodiment

As shown in Figures 3 to 5, the controller module 100 includes a control housing 110 and a drive control circuit board 120 disposed in the control housing 110, and the control housing 110 has an inner control end surface 1101 and an external control end surface 1102, the drive control circuit board 120 includes an inverter circuit part 121, a power supply circuit part 122 and a control circuit part 123, the inverter circuit part 121, the power supply circuit part 122 and The control circuit part 123 is located in the same plane to integrate the drive control circuit board 120 in a sheet shape, and the drive control circuit board 120 is accommodated in the inner control end surface 1101 and the between the outer control end faces 1102 .

The drive control circuit board 120 removes the rectification part to form a sheet-like drive control circuit board 120. Compared with the structure of stacking circuit boards on both sides in the prior art, the controller module 100 The thickness is further reduced to meet different usage scenarios.

Preferably, the drive control circuit board 120 is parallel to the inner control end face 1101 and the outer control end face 1102 respectively, so that the drive control circuit board 120 is closely stacked on the inner control end face 1101 and the outer control end face 1102. Between the outer control end faces 1102 , the controller module 100 is thinner.

As shown in FIG. 3 , the control housing 110 also has a control periphery 1103 extending between the inner control end surface 1101 and the outer control end surface 1102 to encapsulate the drive control circuit board 120 in the control Inside the housing 110.

Specifically, the control peripheral edge 1103 includes a control round edge portion 11031 and a control convex portion 11032 adjacent to each other, and the driving wiring portion 124 is opposite to the control convex portion 11032 so as to correspond to the control convex portion 11032. A port portion 11021 is formed on the outer control end surface 1102 of the .

More specifically, the dimension of the control convex portion 11032 along the circumferential direction of the control circular edge portion 11031 is 4 times or more than the dimension of the control convex portion 11032 along the radial direction of the control circular edge portion 11031, so that The control protrusion 11032 is rectangular.

As shown in FIG. 4, the inverter circuit part 121, the power supply circuit part 122 and the control circuit part 123 are fan-shaped to enclose the circular drive control circuit board 120, so as to adapt to a substantially circular shape. shape of the control housing 110 .

Wherein the arc of the inverter circuit part 121 and the power circuit part 122 is 90°, and the arc of the control circuit part 123 is 180°. The edge of the inverter circuit part 121 away from the control circuit part 123 is opposite to the edge of the power circuit part 122 away from the control circuit part 123 to form a rectangular driving connection part 124 . The driving wiring part 124 corresponds to the control convex part 11032 to realize wiring.

As shown in FIG. 3 , cooling fins are provided on the outer control end surface 1102 corresponding to the control circular edge portion 11031 to improve heat dissipation performance.

To sum up, the drive control circuit board 120 removes the rectification part to form a sheet-shaped drive control circuit board 120. Compared with the prior art structure in which circuit boards are stacked on both sides, the The thickness of the controller module 100 is further reduced to meet different usage scenarios.

The above-described embodiments are only used to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and the scope of the present invention cannot be limited only by this embodiment. The scope of patent adoption, that is, all equivalent changes or modifications made according to the spirit disclosed in the present invention still fall within the patent scope of the present invention.

Claims (10)

1. A controller having external rectification, comprising:

a controller module (100), the controller module (100) comprising a control housing (110) and a drive control circuit board (120) disposed within the control housing (110);

a rectifying module (200), wherein the rectifying module (200) comprises a rectifying shell (210) and a rectifying circuit board (220) arranged in the rectifying shell (210);

the rectification module (200) is independently arranged outside the controller module (100), and the rectification module and the controller module are connected through a flexible cable;

the control shell (110) is provided with a motor mounting surface, and the controller module (100) is integrated with the motor module (300) through the motor mounting surface;

the drive control circuit board (120) comprises an inverter circuit part (121), a power circuit part (122) and a control circuit part (123), wherein the inverter circuit part (121), the power circuit part (122) and the control circuit part (123) are all fan-shaped so as to enclose the circular drive control circuit board (120).

2. The controller with external rectification of claim 1, wherein said control housing (110) has an inner control end face (1101) and an outer control end face (1102), and a control peripheral edge (1103) extending between said inner control end face (1101) and said outer control end face (1102), said inner control end face (1101) and said outer control end face (1102) defining a thickness of said controller module (100), said rectification module (200) being located on one side of said controller module (100) in a thickness direction, said flexible cable comprising a dc cable (410), said rectification module (200) extending connected to said outer control end face (1102) in a manner that said rectification module (200) is aligned with a length direction of said dc cable (410), said inner control end face (1101) being a motor mounting surface.

3. The controller with external rectification according to claim 1, wherein the control housing (110) is divided into a bottom case (111) and a cover plate (112) along a thickness direction thereof, and the bottom case (111) and the cover plate (112) are fixed by screws or an adhesive.

4. The controller with external rectification of claim 2, wherein said external control end surface (1102) is further provided with heat dissipating fins.

5. An axial field motor comprising the controller with external commutation of any one of claims 1 to 4, the axial field motor further comprising:

and the motor module (300) is connected with the controller module (100) through a motor cable (420).

6. The axial field motor of claim 5, wherein the motor module (300) includes a motor housing (310), the motor housing (310) having an inner motor end face (3101), an outer motor end face (3102), and a motor peripheral edge (3103) extending between the inner motor end face (3101) and the outer motor end face (3102), the inner motor end face (3101) and the outer motor end face (3102) defining a thickness of the motor module (300), the controller module (100) being mounted to the motor module (300) with an inner control end face (1101) abutting the inner motor end face (3101), and the motor peripheral edge (3103) partially abutting a control peripheral edge (1103) of the controller module (100).

7. The axial field motor of claim 6, wherein the motor peripheral edge (3103) includes a motor round edge (31031) and a motor convex portion (31032) that are adjacent, the control peripheral edge (1103) includes a control round edge (11031) and a control convex portion (11032) that are adjacent, the motor round edge (31031) and the control round edge (11031) are in abutting correspondence, the motor convex portion (31032) and the control convex portion (11032) face in the same direction, and the motor convex portion (31032) protrudes out of the control convex portion (11032) such that a wiring space that accommodates the motor cable (420) is formed between the motor convex portion (31032) and the control convex portion (11032), and the wiring space is located in an area surrounded by the motor peripheral edge (3103).

8. The axial field motor of claim 7, wherein a control connection port (330) is provided on the inner motor end surface (3101) corresponding to the motor protrusion (31032), a motor connection port (131) is provided on the outer control end surface (1102) corresponding to the control protrusion (11032), and the motor cable (420) is connected between the control connection port (330) and the motor connection port (131) in a U-shape.

9. The axial field motor of claim 8, wherein the outer control end surface (1102) is further provided with a rectifying connection port (132) and a communication connection port (133), the rectifying module (200) is detachably connected to the rectifying connection port (132) through a direct current cable (410), and the upper computer is detachably connected to the communication connection port (133) through a communication cable (430).

10. The axial field motor of claim 9, wherein the motor connection port (131), the rectifying connection port (132), and the communication connection port (133) are disposed side by side on the outer control end surface (1102) corresponding to the control protrusion (11032).

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