CN212115084U - Integrated driving motor - Google Patents

Abstract

The utility model discloses an integrated driving motor, which comprises a shell, a motor stator, a motor rotor and a motor shaft, wherein the shell is internally provided with an installation cavity; the integrated driving motor further comprises a driver PCB, and the driver PCB is arranged in the mounting cavity. The integrated driving motor of the utility model realizes the integrated arrangement of the driver PCB and the motor by arranging the driver PCB in the installation cavity, the integrated driving motor forms an integrated motor with a variable frequency driver, the motor is combined with the frequency converter, the frequency converter and the motor do not need to be additionally connected, and the operation of customers is convenient; the installation position does not need to be arranged independently for the converter, saves customer's installation space, and the small of driver PCB board is favorable to reducing integrated driving motor's whole volume moreover, further reduces the space and occupies, improves space utilization, improves customer availability factor, is fit for popularizing and applying.

Description

An integrated drive motor

technical field

The utility model belongs to the technical field of motors, in particular to an integrated drive motor.

Background technique

The frequency converter is an electric energy control device that converts the power frequency power supply into another frequency by using the on-off function of the power semiconductor device, which can realize the functions of variable speed regulation of the motor, changing the power factor, and overload protection.

The frequency conversion of the motor is more and more widely used in the industrial field, and the variable frequency drive brings more and more advantages to the motor application, including energy saving, no impact on starting, and low operating noise. However, the variable frequency drive also puts forward higher requirements in terms of application, for example: the volume of the frequency converter is large, and there is not enough space for installation; the protection level of the frequency converter is low, and it cannot be waterproof, dustproof, and antifouling, so the failure The frequency is high; the inverter needs to match the motor parameters, which leads to the complexity of the customer's application implementation.

It should be noted that the above content belongs to the technical cognition category of the inventor, and does not necessarily constitute the prior art.

Utility model content

In order to solve the above problems, the purpose of the present utility model is to provide an integrated drive motor, the motor and the frequency converter are combined together, and there is no need to connect the frequency converter and the motor separately. Save the installation space of customers and improve the efficiency of customer use driver PCB board driver PCB board driver PCB board.

In order to achieve the above purpose, the present utility model proposes an integrated drive motor, which is characterized in that an installation cavity is provided inside the casing, and the motor stator, the motor rotor and the motor are arranged in the installation cavity, and the It is characterized in that, the integrated drive motor further includes a driver PCB board, and the driver PCB board is arranged in the installation cavity and is used for variable frequency driving of the integrated drive motor.

In one example, the housing includes a motor housing and a driver housing that are snap-fitted and connected, the motor housing and the driver housing together enclose the installation cavity, the motor stator, the motor rotor and the The motor shaft is installed in the motor housing, and the drive PCB board actuator is installed in the driver housing at the bottom away from the motor housing.

In one example, the driver PCB board driver is potted by potting glue in the driver housing.

In one example, heat dissipation ribs are protruded from the outside of the driver housing.

In one example, the motor casing includes a casing body, an end cover and a shaft bracket, both ends of the casing body are open, and the end cover is connected to a first end of the casing body and closes the first end The shaft bracket is fixedly connected to the opening of the second end of the casing body, the driver casing is fixedly connected to the casing body through the shaft bracket and closes the opening of the second end, the shaft bracket The installation cavity is divided into a motor installation area and a driver installation area.

In one example, the shaft bracket is a hollow structure to communicate with the motor mounting area and the driver mounting area.

In an example, the integrated drive motor further includes a bearing, a bearing hole is provided in the center of the shaft support, a shaft hole is formed in the center of the end cover, and the bearing is arranged in the bearing hole and the shaft hole, so One end of the motor shaft is rotatably supported on the shaft bracket through the bearing, and the other end of the motor shaft is rotatably supported on the end cover through the bearing and protrudes from the end cover through the shaft hole; the The motor stator is fixedly mounted on the inner side wall of the housing body, and the motor rotor is sleeved on the motor shaft.

In one example, motor housing connecting parts and driver housing connecting parts are alternately disposed on the outer circumference of the shaft bracket along the circumferential direction, and a plurality of the motor housing connecting parts and a plurality of the driver housing connecting parts are arranged along the The shaft supports are evenly arranged in the circumferential direction; the motor casing is fixedly connected to the shaft support through the motor casing connecting portion, and the driver casing is fixedly connected to the shaft support through the driver casing connecting portion.

In one example, the integrated drive motor further includes a connecting wire, the driver PCB board is electrically connected to the motor stator through the connecting wire, and the connecting wire is arranged in the installation cavity.

In one example, the frequency conversion parameters of the driver PCB are set to match the integrated drive motor.

The integrated drive motor proposed by the utility model can bring the following beneficial effects:

1. By building the driver PCB board in the installation cavity, the integrated setting of the driver PCB board and the motor is realized. The integrated drive motor forms an integrated motor with its own variable frequency driver. The motor and the inverter are combined together, and there is no need to connect the inverter separately. With the motor, the customer is easy to operate; at the same time, there is no need to arrange a separate installation position for the inverter, which saves the customer's installation space, and the driver PCB board is small in size, which is conducive to reducing the overall volume of the integrated drive motor, further reducing space occupation and improving space. Utilization rate, improve customer use efficiency, suitable for promotion and application.

2. The driver PCB board is separated from the motor rotor and the motor shaft and arranged in the installation cavity, which can prevent the rotation of the motor rotor from interfering with the integrated variable frequency driver, and at the same time reduce the electromagnetic interference to the driver PCB board when the integrated drive motor is working, reducing the integration The high temperature generated by the operation of the drive motor is transmitted to the driver PCB board, which ensures the stable and reliable operation of the driver PCB board, prolongs the service life, and has strong practicability.

3. After the potting glue is completely cured, the driver PCB board is isolated from the outside world, and the sealing effect is good, which can prevent dust, liquid, etc. from entering and polluting the driver PCB board, and the potting glue is resistant to high temperature and surface leakage, which can effectively protect the driver PCB board. Improve the protection level of the inverter, adapt to the harsh production environment with more dust, humidity and high temperature, reduce the failure rate, effectively prolong the service life of the driver PCB board, and have strong practicability.

4. By pre-setting the frequency conversion parameters of the driver PCB board, there is no need for the customer to set the frequency converter parameters again, which improves the customer's use efficiency and is simple and convenient to use.

5. By setting the shaft bracket, the driver shell and the motor shell are fixedly connected, and the connection is firm and reliable, and the shaft bracket divides the installation cavity into two relatively independent areas, further isolating the driver PCB board from the motor rotor and the motor shaft, further Reduce the electromagnetic interference to the driver PCB board and slow down the temperature rise of the driver PCB board, effectively protect the driver PCB board, and the driver PCB board has a longer service life.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. . In the attached image:

Fig. 1 is the exploded view of a kind of integrated drive motor of the present invention;

FIG. 2 is a schematic three-dimensional structure diagram of an integrated drive motor of the present invention;

3 is a cross-sectional view of an integrated drive motor of the present invention;

Fig. 4 is the structural representation of the shell of the utility model;

Fig. 5 is the sectional view of Fig. 4;

Fig. 6 is the three-dimensional structure schematic diagram of the end cap of the present invention;

Fig. 7 is the three-dimensional structure schematic diagram of the shaft support of the present invention;

FIG. 8 is a schematic three-dimensional structural diagram of the driver housing of the present invention.

In the figure, 1-shell, 11-installation cavity, 111-motor installation area, 112-driver installation area, 12-motor shell, 121-shell body, 122-end cover, 1221-shaft hole, 123-shaft bracket, 1231 -Bearing hole, 1232- Motor housing connection, 1233- Driver housing connection, 13- Driver housing, 131- Heat dissipation ribs, 2- Motor stator, 3- Motor rotor, 4- Motor shaft, 5- Driver PCB board, 6-Bearing

Detailed ways

In order to explain the overall concept of the present invention more clearly, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" , "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. In the description of this specification, reference to the description of the terms "one aspect", "some aspects", "example", "specific example", or "some examples" etc. means the specific features, structures, structures, A material or feature is included in at least one aspect or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same scheme or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more arrangements or examples.

As shown in FIGS. 1 to 8 , an embodiment of the present invention proposes an integrated drive motor, which includes a housing 1, a motor stator 2, a motor rotor 3 and a motor shaft 4. The housing 1 has a mounting cavity 11 inside, and the motor stator 2 , the motor rotor 3 and the motor are arranged in the installation cavity 11 ; the integrated drive motor also includes a driver PCB 5 , which is arranged in the installation cavity 11 and is used for the variable frequency drive of the integrated drive motor. By building the driver PCB board 5 in the installation cavity 11, the integrated setting of the driver PCB board 5 and the motor is realized, and the integrated driving motor forms an integrated motor with its own variable frequency driver. At the same time, there is no need to arrange a separate installation position for the inverter, which saves the installation space of the customer, and the small size of the driver PCB board 5 is conducive to reducing the overall volume of the integrated drive motor and further reducing the space occupation. Improve space utilization, improve customer use efficiency, suitable for promotion and application.

Specifically, the housing 1 includes a motor housing 12 and a driver housing 13 that are connected with each other. The motor housing 12 and the driver housing 13 together enclose a mounting cavity 11 . The motor stator 2 , the motor rotor 3 and the motor shaft 4 are mounted on the motor. In the housing 12, the driver PCB board 5 is installed in the driver housing 13 away from the bottom of the motor housing 12, so that the driver PCB board 5, the motor rotor 3 and the motor shaft 4 are spaced apart and arranged in the installation cavity 11, which can prevent the integrated setting of frequency conversion. Interfering with the rotation of the motor rotor 3 during the drive, reducing the electromagnetic interference to the drive PCB 5 when the integrated drive motor works, reducing the high temperature generated by the integrated drive motor from being transmitted to the drive PCB 5, and ensuring the drive PCB 5 Stable and reliable work, Prolonged service life and strong practicability.

Specifically, the driver PCB board 5 is potted in the driver housing 13 by potting glue. After the potting glue is completely cured, the driver PCB board 5 is isolated from the outside world, and the sealing effect is good, which can prevent dust, liquid, etc. from entering and polluting the driver PCB board 5. , and the potting glue is resistant to high temperature and surface leakage, which can effectively protect the driver PCB board 5, improve the protection level of the inverter, adapt to harsh production environments with more dust, humidity and high temperature, reduce the failure rate, and effectively extend the driver PCB. The service life of the board 5 is strong, and the practicability is strong. In a specific embodiment, the potting compound can be epoxy resin, polyurethane or silicone resin.

Specifically, the integrated drive motor further includes a connecting wire. The driver PCB board 5 is electrically connected to the motor stator 2 through the connecting wire, and the connecting wire is arranged in the installation cavity 11 to effectively protect the connecting wire, and the connecting wire is not easy to be damaged. The connection of the motor stator 2 is reliable, the anti-interference ability is strong, the protection level of the integrated drive motor is improved, the stable and reliable operation of the integrated drive motor is ensured, the service life is longer, and the practicability is strong.

Specifically, the frequency conversion parameters of the driver PCB board 5 are set to match the integrated drive motor. By pre-setting the frequency conversion parameters of the driver PCB board 5, the customer does not need to set the frequency converter parameters again, which improves the customer's use efficiency and is simple and convenient to use.

Specifically, the exterior of the driver housing 13 is protruded with cooling ribs 131, which increases the contact area between the driver housing 13 and the outside air. When the driver PCB board 5 works to generate heat, the heat is dissipated by contacting the outside air through the cooling ribs 131. The cooling efficiency of the driver housing 13 is higher, the cooling effect on the driver PCB 5 is better, the stable and reliable operation of the driver PCB 5 is ensured, and the service life of the driver PCB 5 is prolonged. In a specific embodiment, a plurality of heat dissipation ribs 131 extending in the length direction are evenly spaced on the outer side wall of the driver case 13 in the circumferential direction, and the heat dissipation ribs 131 protrude from the outer periphery of the driver case 13 in the radial direction. A plurality of heat dissipation ribs 131 are arranged vertically protruding from the outer side of the bottom at even intervals.

Specifically, the motor casing 12 includes a casing main body 121, an end cover 122 and a shaft bracket 123. Both ends of the casing main body 121 are open. The end cover 122 is connected to the first end of the casing main body 121 and closes the opening of the first end. 123 is fixedly connected to the opening of the second end of the housing body 121, the driver housing 13 is fixedly connected to the housing body 121 through the shaft bracket 123 and closes the opening of the second end, and the shaft bracket 123 divides the installation cavity 11 into the motor installation area 111 and the driver installation area. District 112. By arranging the shaft bracket 123, the driver housing 13 and the motor housing 12 are fixedly connected, and the connection is firm and reliable, and the shaft bracket 123 divides the installation cavity 11 into two relatively independent areas, further connecting the driver PCB board 5 with the motor rotor 3 and the motor The shaft 4 is isolated and separated, which further reduces the electromagnetic interference to the driver PCB 5 and slows down the temperature rise of the driver PCB 5, effectively protecting the driver PCB 5, and the service life of the driver PCB 5 is longer.

Specifically, the shaft bracket 123 is a hollow structure and communicates with the motor installation area 111 and the driver installation area 112. When the integrated drive motor works to generate heat, there is more space for the circulation and transmission of heat, so that the installation cavity 11 can effectively Heat dissipation, improve the working performance of the integrated drive motor, and prolong the service life of the integrated drive motor; the hollow structure of the shaft bracket 123 can also facilitate the passage of some larger components on the driver PCB board 5, and the driver PCB board 5 can be close to the shaft bracket 123 The installation and installation structure are more compact, which is beneficial to reduce the volume of the integrated drive motor, reduce the space occupation, save the installation space of the customer, and facilitate the use of the customer. In a specific embodiment, the shaft bracket 123 is provided with three openings along the circumferential direction.

Specifically, the integrated drive motor further includes a bearing 6, a bearing hole 1231 is provided in the center of the shaft bracket 123, a shaft hole 1221 is formed in the center of the end cover 122, the bearing 6 is arranged in the bearing hole 1231 and the shaft hole 1221, and one end of the motor shaft 4 passes through the bearing 6 is rotatably supported on the shaft bracket 123, the other end of the motor shaft 4 is rotatably supported on the end cover 122 through the bearing 6 and protrudes from the end cover 122 from the shaft hole 1221; the motor stator 2 is fixedly installed on the inner wall of the shell body 121, and the motor rotor 3 It is sleeved on the motor shaft 4 . Both ends of the motor shaft 4 are driven and supported by the bearings 6, which effectively reduces the rotational frictional resistance of the motor shaft 4, reduces the rotation heat of the motor shaft 4, and is beneficial to increase the speed of the motor shaft 4. The integrated drive motor has better performance and practicability powerful.

Specifically, the outer circumference of the shaft bracket 123 is alternately provided with motor casing connecting parts 1232 and driver casing connecting parts 1233 along the circumferential direction, and a plurality of motor casing connecting parts 1232 and a plurality of driver casing connecting parts 1233 are arranged along the circumference of the shaft bracket 123 . The motor housing 12 is fixedly connected to the shaft bracket 123 through the motor housing connecting portion 1232 , and the driver housing 13 is fixedly connected to the shaft bracket 123 through the driver housing connecting portion 1233 . The shaft bracket 123 can reduce the thickness of the shaft bracket 123 while fixing the connection between the motor shell 12 and the driver shell 13 by evenly disposing the motor shell connecting portion 1232 and the driver shell connecting portion 1233 on the outer periphery, and the force is evenly distributed. The connection strength is high, the installation is firm and reliable, and it is not easy to be damaged; in addition, the driver shell 13 is separately connected to the shaft bracket 123 shell, and the driver shell 13 is easy to disassemble and assemble, which is convenient for the maintenance and replacement of the driver PCB board 5, and has strong practicability. In a specific embodiment, as shown in FIG. 7 , four motor housing connecting parts 1232 and driver housing connecting parts 1233 are provided at intervals, respectively. It is fixedly connected to the driver casing 13 through the driver casing connecting portion 1233 .

The various embodiments in this specification are described in a progressive manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for related parts, please refer to the partial descriptions of the method embodiments.

The above descriptions are merely examples of the present invention, and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims (10)

1. An integrated drive motor, comprising a housing, a motor stator, a motor rotor and a motor shaft, the housing has an installation cavity inside, and the motor stator, the motor rotor and the motor shaft are arranged in the installation cavity, It is characterized in that, the integrated drive motor further includes a driver PCB board, and the driver PCB board is arranged in the installation cavity and is used for variable frequency drive of the integrated drive motor. 2 . The integrated drive motor according to claim 1 , wherein the casing comprises a motor casing and a driver casing that are snap-fitted and connected, and the motor casing and the driver casing jointly enclose the An installation cavity, the motor stator, the motor rotor and the motor shaft are installed in the motor housing, and the driver PCB board is installed in the driver housing at the bottom of the motor housing away from the motor housing. 3 . The integrated drive motor according to claim 2 , wherein the driver PCB board is potted by potting glue in the driver housing. 4 . 4 . The integrated drive motor according to claim 2 , wherein heat dissipation ribs are protruded from the outside of the driver housing. 5 . 5 . The integrated drive motor according to claim 2 , wherein the motor casing comprises a casing body, an end cover and a shaft bracket, both ends of the casing body are open, and the end cover is connected to the The first end of the housing body closes the opening of the first end, the shaft support is fixedly connected to the opening of the second end of the housing body, and the driver housing is fixedly connected to the housing through the shaft support The main body closes the opening of the second end, and the shaft bracket divides the installation cavity into a motor installation area and a driver installation area. 6 . The integrated drive motor according to claim 5 , wherein the shaft bracket is a hollow structure to communicate with the motor installation area and the driver installation area. 7 . 7 . The integrated drive motor according to claim 5 , wherein the integrated drive motor further comprises a bearing, the center of the shaft support is provided with a bearing hole, the center of the end cover is provided with a shaft hole, and the bearing It is arranged in the bearing hole and the shaft hole, one end of the motor shaft is rotatably supported on the shaft bracket through the bearing, and the other end of the motor shaft is rotatably supported on the end cover through the bearing. The end cover protrudes from the shaft hole; the motor stator is fixedly mounted on the inner side wall of the housing body, and the motor rotor is sleeved on the motor shaft. 8 . The integrated drive motor according to claim 5 , wherein the outer periphery of the shaft bracket is alternately provided with a motor case connecting portion and a driver case connecting portion in the circumferential direction, and a plurality of the motor case The connecting portion and a plurality of the connecting portions of the driver housing are evenly arranged along the circumferential direction of the shaft support; the motor housing is fixedly connected to the shaft support through the connecting portion of the motor housing, and the driver housing passes through the The driver housing connecting part is fixedly connected with the shaft bracket. 9 . The integrated drive motor according to claim 1 , wherein the integrated drive motor further comprises a connecting wire, and the driver PCB board is connected to the motor stator through the connecting wire. 10 . electrically connected, and the connection wire is arranged in the installation cavity. 10 . The integrated drive motor according to claim 1 , wherein the frequency conversion parameters of the driver PCB board are set to match the integrated drive motor. 11 .

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