Motor generator and automobile

Abstract

The utility model provides a motor generator and an automobile, and relates to the technical field of generators. The motor generator comprises a shell, a generator body and an inverter. According to the motor generator, the inverter is located on the circumferential side of the generator body, so that the inverter does not occupy the space of the axial side of the generator body, the axial size of the shell can be reduced, and the motor generator can still be conveniently installed in an automobile when the length and the width of the installation space in the automobile are small. The side, facing the generator body, of the inverter is a cambered surface, so that the inverter can be closer to the generator body, and the protruding size of the inverter along the surface of the generator body is reduced. In addition, the outer wall of the side, back on to the generator body, of the inverter is also arranged to be a cambered surface and arranged in the circumferential direction of the generator body, so that the outer wall of the inverter body and the circumferential side wall of the generator body can extend in the same direction, the size of the inverter can be further reduced, and finally the size of the motor generator is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to an electric generator and a car, and belongs to the technical field of cars. BACKGROUND

[0002] With the development of new energy technology, various new energy cars are also developing rapidly, and the range-extender car is one of the new energy cars. The generator is an important component in the range-extender car. The mechanical energy generated by the internal combustion engine of the range-extender car can be converted into electric energy through the generator, and the electric energy can be stored in the battery. The electric motor in the range-extender car can drive the car to move by consuming electric energy. In order to store the alternating current generated by the generator in the battery ultimately, the alternating current needs to be converted into direct current through an inverter.

[0003] At present, the volume of the inverter in the range-extender car is relatively large. Even if the inverter is arranged close to the generator, the overall structure of the generator and the inverter is still large in volume, which leads to the inconvenience of arranging the overall structure of the generator and the inverter in the car. CONTENT OF THE UTILITY MODEL

[0004] The application provides an electric generator and a car, and solves the problem that the generator and the inverter occupy too much space and are inconvenient to arrange in the car in the related art.

[0005] In a first aspect, the application provides an electric generator, comprising:

[0006] a shell comprising a cavity;

[0007] a generator main body arranged in the cavity, and a circumferential side wall of the generator main body being an arc surface;

[0008] an inverter arranged in the cavity, and the inverter being located on one side of the generator main body in the circumferential direction, an outer wall of the inverter on the side facing the generator main body being an arc surface matched with the circumferential side wall of the generator main body, and a side of the inverter facing away from the generator main body being an arc surface and being arranged along the circumferential direction of the generator main body, and the inverter being electrically connected with the generator main body.

[0009] In some embodiments, the cavity comprises a first cavity and a second cavity, the second cavity is located on the circumferential side of the first cavity, the cavity shape of the first cavity is matched with the shape of the generator main body, the generator main body is located in the first cavity, and the cavity shape of the second cavity is matched with the shape of the inverter, and the inverter is located in the second cavity.

[0010] In some embodiments, the generator body comprises a first electrical connection site located at one axial side of the generator body, the inverter comprises a second electrical connection site, and the first electrical connection site is disposed at the same side as the second electrical connection site.

[0011] In some embodiments, the inverter comprises a power circuit board, a control circuit board, and a capacitor, the capacitor is disposed between the power circuit board and the control circuit board, and the capacitor is electrically connected to both the power circuit board and the control circuit board, and the power circuit board is electrically connected to the generator body.

[0012] In some embodiments, the capacitor is in a plurality, and the plurality of capacitors are disposed at intervals in the circumferential direction of the generator body.

[0013] In some embodiments, the power circuit board further comprises a board body and power semiconductors, the board body is provided with a mounting groove, and at least part of the power semiconductors is embedded in the mounting groove.

[0014] In some embodiments, the power semiconductors are in a plurality, and the plurality of power semiconductors are disposed on the board body in the circumferential direction of the generator body.

[0015] In some embodiments, the inverter further comprises an alternating current busbar and a direct current busbar, the alternating current busbar is disposed on the side of the power circuit board facing the control circuit board, and the alternating current busbar is connected to the generator body, and the direct current busbar is disposed between the capacitor and the control circuit board, and the direct current busbar is connected to the capacitor.

[0016] In some embodiments, the inverter further comprises a heat sink, and the heat sink is disposed on the side of the power circuit board facing away from the control circuit board.

[0017] In some embodiments, the motor-generator further comprises a heat dissipation pipeline, a driving pump, and a heat exchanger, the heat dissipation pipeline is disposed in the housing, and the heat dissipation pipeline is connected to the driving pump and the heat exchanger.

[0018] In some embodiments, the driving pump and the heat exchanger are located outside the cavity.

[0019] In some embodiments, the heat exchanger, the driving pump, and the inverter are distributed at intervals in the circumferential direction of the generator body.

[0020] In some embodiments, the housing comprises a shell and a cover plate, the shell is provided with an opening, the cover plate is sealed to the opening, the cover plate and the shell form the cavity, and the cover plate is located at one axial side of the cavity.

[0021] In some embodiments, the motor generator further comprises a sealing gasket and a wire, the cover plate is provided with a wire hole, the sealing gasket is sealed to the wire hole, the first and second electrical connection parts are arranged in the sealing gasket, and the wire is electrically connected to the first and second electrical connection parts.

[0022] In some embodiments, the sealing gasket further comprises a sealing groove, the first and second electrical connection parts are arranged in the sealing groove, and the sealing groove is filled with sealing glue.

[0023] In a second aspect, the application provides an automobile comprising the motor generator above.

[0024] In the motor generator provided by the application, the generator main body and the inverter are arranged in the shell, so that the shell can protect the generator main body and the inverter, and the generator and the inverter can be conveniently installed in the automobile. The inverter is located on one side of the generator main body in the circumferential direction, so that the inverter does not occupy the space on one side of the generator main body in the axial direction, thereby reducing the axial dimension of the shell. Thus, when the length and width of the installation space in the automobile are small, the motor generator of the application can still be conveniently installed in the automobile. The side of the inverter facing the generator main body is arc-shaped, so that the inverter can be closer to the generator main body, thereby reducing the dimension of the inverter protruding along the surface of the generator main body. The outer wall of the side of the inverter facing away from the generator main body is also arc-shaped and arranged along the circumferential direction of the generator main body, so that the outer wall of the inverter main body can extend in the same direction as the circumferential side wall of the generator main body, thereby further reducing the dimension of the inverter and finally reducing the volume of the motor generator of the application.

[0025] In the automobile provided by the application, the above motor generator is applied, so that the space in the automobile for installing other components except the motor generator is larger, thereby making the structure of the automobile more compact, and the other components of the automobile can be more conveniently installed in the automobile. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and other objects, features and advantages of the embodiments of the application will become more apparent from the following detailed description made with reference to the accompanying drawings. In the drawings, various embodiments of the application are illustrated by way of example and not limitation, in which:

[0027] Figure 1 FIG. 1 is a schematic view of a motor generator according to an embodiment of the application;

[0028] Figure 2 FIG. 1 is a schematic view of a motor generator according to an embodiment of the application;

[0029] Figure 3 Fig. 1 is a schematic view of a cross section of A-A in Fig. 1; Figure 2 Fig. 2 is a schematic view of a cross section of B-B in Fig. 1;

[0030] Figure 4 Fig. 3 is a schematic view of a position relationship between a generator main body and an inverter of an electric motor generator according to an embodiment of the present application;

[0031] Figure 5 Fig. 4 is a schematic view of the inverter of the electric motor generator according to the embodiment of the present application;

[0032] Figure 6 Fig. 5 is a schematic view of a DC busbar of the inverter of the electric motor generator according to the embodiment of the present application;

[0033] Figure 7 Fig. 6 is a schematic view of a mounting slot of a power circuit board of the inverter of the electric motor generator according to the embodiment of the present application;

[0034] Figure 8 Fig. 7 is a schematic view of a power semiconductor of the power circuit board of the inverter of the electric motor generator according to the embodiment of the present application;

[0035] Figure 9 Fig. 8 is a schematic view of a cover plate of the electric motor generator according to the embodiment of the present application.

[0036] Reference signs:

[0037] 100 - housing, 110 - cavity, 111 - first cavity, 112 - second cavity, 120 - shell part, 130 - cover plate, 131 - threading hole, 140 - sealing gasket, 141 - sealing groove,

[0038] 200 - generator main body, 210 - first electrical connection site,

[0039] 300 - inverter, 310 - power circuit board, 311 - board body, 312 - power semiconductor, 313 - mounting slot, 320 - capacitor, 330 - control circuit board, 340 - AC busbar, 341 - second electrical connection site, 350 - DC busbar, 360 - heat sink,

[0040] 400 - heat dissipation pipeline,

[0041] 500 - drive pump,

[0042] 600 - heat exchanger. DETAILED DESCRIPTION

[0043] Embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0049] With the development of new energy technology, various new energy vehicles are also developing rapidly, and the range extended vehicle is one of the new energy vehicles. The generator is an important part of the range extended vehicle. The mechanical energy generated by the internal combustion engine of the range extended vehicle can be converted into electrical energy through the generator. The electrical energy can be stored in the battery. The electric motor in the range extended vehicle can drive the vehicle to move by consuming electrical energy. In order to store the alternating current generated by the generator in the battery, the alternating current needs to be converted into direct current through the inverter.

[0050] At present, the volume of the inverter in the range extended vehicle is relatively large. Even if the inverter is arranged close to the generator, the overall structure of the generator and the inverter is still large in volume, which makes the overall structure of the generator and the inverter inconvenient to arrange in the vehicle.

[0051] In the motor generator provided in the present application, the generator main body and the inverter are arranged in the shell, so that the shell can protect the generator main body and the inverter, and the generator and the inverter can be conveniently installed in the vehicle. The inverter is located on one side of the generator main body in the circumferential direction, so that the inverter does not occupy the space on one side of the generator main body in the axial direction, thereby reducing the axial dimension of the shell. Therefore, when the length and width of the installation space in the vehicle are small, the motor generator of the present application can still be conveniently installed in the vehicle. The side of the inverter facing the generator main body is arc-shaped, so that the inverter can be closer to the generator main body, thereby reducing the dimension of the inverter protruding along the surface of the generator main body. The outer wall of the inverter away from the generator main body is also arc-shaped and arranged along the circumferential direction of the generator main body, so that the outer wall of the inverter main body can extend in the same direction as the circumferential side wall of the generator main body, thereby further reducing the dimension of the inverter and ultimately reducing the volume of the motor generator of the present application.

[0052] In the vehicle provided in the present application, due to the application of the above-mentioned motor generator, the space in the vehicle available for the installation of other components except the motor generator is larger, thereby making the structure of the vehicle more compact, and the other components of the vehicle can be more conveniently installed in the vehicle.

[0053] The motor generator and the automobile provided by the present application will be described in detail below in combination with specific embodiments.

[0054] Reference Figures 1 to 3 As shown in the drawings, the motor generator provided by the present application comprises a shell 100, a generator main body 200 and an inverter 300. The motor generator is applied to an automobile.

[0055] The shell 100 is the basic component of the motor generator provided by the present application. The shell 100 can provide installation basis for other at least partial components of the motor generator and serve the purpose of protecting the other at least partial components. The shell 100 can be made of metal material, so that the shell 100 has better structural strength, thereby making the durability and reliability of the shell 100 better. Of course, part of the shell 100 can also be made of polymer material, so that the shell 100 has certain structural strength while being relatively light in weight.

[0056] The shell 100 comprises a cavity 110, which is the cavity structure in the shell 100. The generator main body 200 is arranged in the cavity 110, so that the shell 100 can protect the generator main body 200. When the motor generator provided by the present application is applied to an automobile, the generator main body 200 can be connected to the internal combustion engine of the automobile through a clutch device. The operation of the internal combustion engine of the automobile can drive the generator main body 200 to generate electricity and produce electric energy. The generator main body 200 can also be connected to the differential of the automobile through the clutch device. At this time, the generator main body 200 can act as a motor to drive the automobile to move.

[0057] It should be understood that the generator main body 200 comprises a stator and a rotor due to its principle structure. Therefore, the circumferential side wall of the generator main body 200 is arc-shaped structure, so that the overall structure of the generator main body 200 is similar to a cylinder. Correspondingly, the outer shape of the shell 100 can also be set as a structure similar to a cylinder, so that the outer shape of the shell 100 can be adapted to the outer shape of the generator main body 200, thereby making the structure of the motor generator provided by the present application compact.

[0058] The inverter 300 is also arranged in the cavity 110 of the housing 100, so that the housing 100 can also serve the purpose of protecting the inverter 300. The inverter 300 is electrically connected with the generator main body 200, and when the motor generator of the application is applied to a car, the inverter 300 is also electrically connected with the battery of the car. It should be understood that the electric energy generated by the generator main body 200 is alternating current, and after the generator main body 200 is connected with the inverter 300, the inverter 300 can convert the alternating current generated by the generator main body 200 into direct current. The inverter 300 is located on the circumferential side of the generator main body 200, so that the inverter 300 does not occupy the space on the axial side of the generator main body 200 in the housing 100, so that the axial side of the housing 100 can be close to the axial side of the generator main body 200, thereby making the axial size of the motor generator of the application more compact.

[0059] Specifically, the motor generator of the application can be arranged in the front compartment of the car, and the width and length dimensions of the front compartment are affected by the overall size of the car. The smaller the length and width dimensions of the front compartment of the car, the more compact the overall structure of the car. By arranging the inverter 300 on the axial side of the generator main body 200, the axial size of the motor generator is relatively small, so that when the length and / or width dimensions of the front compartment of the car are small, the axial direction of the motor generator can be made consistent with the length direction or the width direction of the front compartment of the car, so that the motor generator can be installed in the front compartment of the car. In addition, when the length and width dimensions of the front compartment of the car are large, the space of the front compartment is relatively abundant, and when the motor generator of the application is arranged in the front compartment, the space of the front compartment occupied by the motor generator is smaller, and the space of the front compartment available for the installation of other components of the car is larger, thereby facilitating the design and assembly of the car.

[0060] The side of the inverter 300 facing the generator main body 200 can be arranged as an arc surface, and the arc surface is adapted to the circumferential side wall of the generator main body 200, so that the side of the inverter 300 facing the generator main body 200 can be arranged along the circumference of the generator main body 200, so that along the circumference of the generator main body 200, the parts of the side of the inverter 300 facing the generator main body 200 can be closer to the generator main body 200, thereby making the inverter 300 as a whole closer to the generator main body 200, so that the radial size of the motor generator of the application can also be reduced.

[0061] The side of the inverter 300 facing away from the generator main body 200 can also be arranged as an arc surface, and the side of the inverter 300 facing away from the generator main body 200 is arranged along the generator main body 200, so that the outer wall of the side of the inverter 300 facing away from the generator main body 200 can also be adapted to the circumferential side wall of the generator main body 200, so that the size of the inverter 300 protruding relative to the circumferential side wall of the generator main body 200 can be smaller, and finally the structure of the motor generator of the application can be more compact.

[0062] In some embodiments, referring to Figure 3 As shown, the cavity 110 of the shell 100 can be provided with a first cavity 111 and a second cavity 112, and the second cavity 112 is located on the circumferential side of the first cavity 111. The cavity shape of the first cavity 111 can be adapted to the shape of the generator body 200. Specifically, when the shape of the generator body 200 is a cylindrical structure, and the circumferential outer wall of the generator body 200 is an arc surface, the cavity shape of the first cavity 111 is also provided as a cylindrical cavity. In this way, when the generator body 200 is arranged in the first cavity 111, the outer wall of the generator body 200 can be closer to the inner wall of the first cavity 111, so that the volume of the first cavity 111 is relatively smaller, so that the volume of the shell 100 can be relatively smaller, so that the structure of the generator body 200 of the present application can be more compact.

[0063] The cavity shape of the second cavity 112 can be adapted to the shape of the inverter 300. In this way, when the inverter 300 is arranged in the second cavity 112, the outer wall of the inverter 300 can be closer to the inner wall of the second cavity 112, so that the volume of the second cavity 112 is relatively smaller, so that the volume of the shell 100 can be relatively smaller, so that the structure of the generator body 200 of the present application can be more compact.

[0064] The first cavity 111 and the second cavity 112 are independent spaces in the shell 100. By arranging the generator body 200 and the inverter 300 in the first cavity 111 and the second cavity 112 respectively, the generator body 200 and the inverter 300 can be arranged separately in different cavities in the shell 100. It should be understood that the generator body 200 and the inverter 300 will generate a large amount of heat when operating. By arranging the generator body 200 and the inverter 300 separately in the first cavity 111 and the second cavity 112, the inner wall for separating the first cavity 111 and the second cavity 112 in the shell 100 can block the heat generated by the generator body 200 and the inverter 300 to a certain extent, so that the heat generated by the generator body 200 and the inverter 300 can be prevented from being superimposed to cause the generator body 200 and the inverter 300 to overheat.

[0065] In some embodiments, referring to Figures 4 to 5As shown, in order to make the generator body 200 of the application electrically connected with the inverter 300, the generator body 200 can be provided with a first electrical connection part 210, the inverter 300 can be provided with a second electrical connection part 341, the first electrical connection part 210 and the second electrical connection part 341 can be connected, so that the generator body 200 and the inverter 300 are electrically connected. Among them, the first electrical connection part 210 is located at one side of the axial direction of the generator body 200, and the second electrical connection part 341 is provided at the same side as the first electrical connection part 210. In this way, the connection part of the generator body 200 and the inverter 300 is avoided to be between the circumferential side wall of the generator body 200 and the inverter 300, so that the inverter 300 can be closer to the circumferential side wall of the generator body 200, so as to reduce the size of the motor generator in the circumferential direction.

[0066] It should be understood that the generator body 200 and the inverter 300 can be electrically connected through a three-phase circuit, therefore, the number of the first electrical connection part 210 and the second electrical connection part 341 can be set to three, and the three first electrical connection parts 210 and the three second electrical connection parts 341 are connected one by one.

[0067] Specifically, the axial side of the first cavity 111 can be provided with an opening, and the second cavity 112 can also be provided with an opening at the same side as the opening of the first cavity 111, so that the first cavity 111 and the second cavity 112 are in communication. The first electrical connection part 210 of the generator body 200 can extend out of the opening of the first cavity 111, and the second electrical connection part 341 of the inverter 300 can extend out of the opening of the second cavity 112, so that the first electrical connection part 210 and the second electrical connection part 341 can be connected, so that the generator body 200 and the inverter 300 can be electrically connected.

[0068] In some embodiments, referring to Figure 5 As shown, the inverter 300 of the application can be provided with a power circuit board 310, a control circuit board 330 and a capacitor 320. Among them, the power circuit board 310, the control circuit board 330 and the capacitor 320 are electrically connected, and the capacitor 320 can be arranged between the power circuit board 310 and the control circuit board 330. In this way, the structure of the inverter 300 can be more compact, and the capacitor 320 can also be more conveniently electrically connected with the power circuit board 310 and the control circuit board 330 at the same time. The power circuit board 310 and the control circuit board 330 can clamp the capacitor 320 between the power circuit board 310 and the control circuit board 330, so as to more conveniently fix the capacitor 320.

[0069] In some embodiments, referring to Figure 5As shown, in order to further make the structure of the motor generator of the application compact, the power circuit board 310, the control circuit board 330 and the capacitor 320 can be stacked along the axial direction of the generator main body 200, so that the power circuit board 310, the control circuit board 330 and the capacitor 320 extend along the axial direction of the generator main body 200, and the power circuit board 310, the control circuit board 330 and the capacitor 320 can be avoided to be stacked along the radial direction of the generator main body 200, so that the inverter 300 occupies less space on the radial side of the generator main body 200, and finally makes the structure of the motor generator of the application more compact.

[0070] Specifically, the side of the power circuit board 310 and the control circuit board 330 towards the generator main body 200 can be provided as an arc surface matched with the circumferential outer wall of the generator main body 200, so that the power circuit board 310 and the control circuit board 330 can be relatively closer to the generator main body 200. The capacitor 320 can also be arranged along the circumferential side wall of the generator, so that the capacitor 320 can also be arranged close to the generator main body 200, so that the capacitor 320 also occupies less space on the radial side of the generator main body 200.

[0071] The inverter 300 of the application can be arranged to have a certain distance from the plane where the axial end surface of the generator main body 200 is located, so that although the inverter 300 has a certain size in the direction of the axial side of the generator main body 200, the inverter 300 will not protrude from the plane where the axial end surface of the generator main body 200 is located, so that the motor generator of the application will not increase the size in the axial direction, so that the motor generator can maintain a compact structure.

[0072] In some embodiments, referring to Figure 5 As shown, the number of capacitors 320 of the application can be set to multiple, and the multiple capacitors 320 can be arranged along the circumference of the generator main body 200, so that the multiple capacitors 320 can be distributed along the circumference of the generator main body 200 as a whole, so that the multiple capacitors 320 can be close to the generator main body 200, so as to reduce the gap space between the capacitor 320 and the generator main body 200, so that the structure of the inverter 300 is more compact, and the structure of the motor generator of the application is more compact.

[0073] In addition, the distribution of multiple capacitors 320 along the circumference of the generator main body 200 can also avoid the stacking of multiple capacitors 320 along the axial direction of the generator main body 200, which can cause the multiple capacitors 320 to occupy too much space in the axial direction, so that the size of the inverter 300 in the axial direction of the generator main body 200 is also more compact.

[0074] In some embodiments, referring to Figure 7 and Figure 8As shown, the power circuit board 310 of the present application can be provided with a board body 311 and a power semiconductor 312, wherein the board body 311 is a circuit board, and the power semiconductor 312 is arranged on the board body 311 and electrically connected with the board body 311. The board body 311 is provided with a mounting groove 313, and at least part of the power semiconductor 312 can be embedded in the mounting groove 313, so as to reduce the size of the part of the power semiconductor 312 protruding from the surface of the board body 311, and make the thickness of the power circuit board 310 smaller. Specifically, the groove type of the mounting groove 313 can be adapted to the shape of the power semiconductor 312, so that when the power semiconductor 312 is arranged in the mounting groove 313, the outer wall of the power semiconductor 312 can be closely attached to the inner wall of the mounting groove 313, so that the power semiconductor 312 can be more reliably fixed in the mounting groove 313 of the board body 311.

[0075] Specifically, the depth of the mounting groove 313 of the board body 311 can also be adapted to the thickness of the power semiconductor 312, so that the power semiconductor 312 as a whole can be located in the mounting groove 313, so as to further utilize the space in the board body 311 to install the power semiconductor 312, and further reduce the thickness of the power circuit board 310.

[0076] In some embodiments, referring to Figure 7 With Figure 8 As shown, the number of the power semiconductor 312 of the present application is multiple, and the multiple power semiconductors 312 are all electrically connected with the board body 311. The multiple power semiconductors 312 can be arranged on the board body 311 along the circumference of the generator body 200, and correspondingly, the board body 311 needs to be provided with a certain size in the circumference of the generator body 200 for installing the multiple power semiconductors 312, so that the multiple power semiconductors 312 can all be in direct contact with the board body 311 for connection.

[0077] Specifically, the number of the mounting groove 313 on the board body 311 can also be multiple, so that the multiple power semiconductors 312 can be arranged in the multiple mounting grooves 313 respectively. Of course, the multiple power semiconductors 312 can also be arranged in the same mounting groove 313, and the present application does not limit this.

[0078] In some embodiments, referring to Figure 5 With Figure 6As shown, in order to make the inverter 300 of the present application electrically connected with the generator body 200, the inverter 300 can further be provided with an AC busbar 340 and a DC busbar 350. The AC busbar 340 is electrically connected with the power circuit board 310, specifically, can be electrically connected with the board body 311 of the power circuit board 310, and is located on the side of the board body 311 facing the control circuit board 330. The second electrical connection part 341 of the inverter 300 is located on the AC busbar 340. In this way, the AC busbar 340 can also be connected with the first electrical connection part 210 of the generator body 200. The electric energy generated by the generator body 200 can be transmitted to the inverter 300 through the AC busbar 340. The DC busbar 350 can be arranged between the capacitor 320 and the control circuit board 330, and the DC busbar 350 is also electrically connected with the capacitor 320. In addition, when the motor generator of the present application is applied to a vehicle, the DC busbar 350 is also electrically connected with the battery of the vehicle. In this way, the AC power generated by the generator body 200 can be converted into DC power by the inverter 300 and stored in the battery.

[0079] In some embodiments, with reference to Figure 5 As shown, the inverter 300 of the present application can further be provided with a heat sink 360. It should be understood that the power semiconductor 312 of the power circuit board 310 in the inverter 300 has the largest amount of heat, so that the power circuit board 310 has the largest amount of heat. The heat sink 360 can be arranged on the power circuit board 310, so that the main heat generated by the inverter 300 can be absorbed by the heat sink 360. Specifically, the heat sink 360 can be arranged on the side of the power circuit board 310 facing away from the control circuit board 330, so that the heat sink 360 can be attached to the power circuit board 310, and the heat sink 360 will not affect the connection between the power circuit board 310 and the capacitor 320, so that the heat sink 360 can be in full contact with the power circuit board 310 for heat dissipation, and the structure arrangement of the inverter 300 is more reasonable.

[0080] In some embodiments, it should be understood that the motor generator of the present application will also generate a large amount of heat during operation. In order to make the motor generator operate stably and reliably, with reference to Figure 2As shown, the motor generator of the present application can further be provided with a heat dissipation pipeline 400, a driving pump 500 and a heat exchanger 600. The heat dissipation pipeline 400 is arranged in the housing 100, and the heat dissipation pipeline 400 can be attached to the generator main body 200. The driving pump 500 is connected to the heat dissipation pipeline 400 and the heat exchanger 600. The driving pump 500 can drive the cooling liquid to flow in the heat dissipation pipeline 400, so that the cooling liquid can absorb the heat generated by the generator main body 200, thereby reducing the temperature of the generator main body 200, so that the generator main body 200 can work stably and reliably. The driving pump 500 can also drive the cooling liquid that has absorbed the heat of the generator main body 200 in the heat dissipation pipeline 400 to flow into the heat exchanger 600, so that the temperature of the cooling liquid can be reduced. In this way, the driving pump 500 can drive the cooling liquid to enter the housing 100 again to circulate and absorb the heat of the generator main body 200.

[0081] The driving pump 500 and the heat exchanger 600 of the present application can be arranged outside the cavity 110 of the housing 100. Correspondingly, the heat dissipation pipeline 400 can extend through the outer wall of the housing 100 to the cavity 110 of the housing 100. By arranging the driving pump 500 and the heat exchanger 600 outside the cavity 110 of the housing 100, the space of the cavity 110 can be reduced, so that the structure of the housing 100 is more compact. In addition, the driving pump 500 and the heat exchanger 600 located outside the cavity 110 can also reduce the influence of the heat generated by the generator main body 200 on the driving pump 500, so that the driving pump 500 and the heat exchanger 600 operate more stably and reliably.

[0082] In some embodiments, with reference to Figure 2 As shown, the heat exchanger 600, the driving pump 500 and the inverter 300 of the present application can be arranged along the circumferential direction of the generator main body 200. In this way, the heat exchanger 600, the driving pump 500 and the inverter 300 can fully utilize the space of each part in the circumferential direction of the generator main body 200, so that the motor generator of the present application has a compact size in the circumferential direction.

[0083] Specifically, it should be understood that the driving pump 500 has a relatively heavy weight, and therefore, the driving pump 500 can be arranged on the bottom side of the generator main body 200.

[0084] In some embodiments, with reference to Figure 2As shown, the shell 100 of the present application can be provided with a shell portion 120 and a cover plate 130, wherein the shell portion 120 has an inner cavity structure, and an opening is provided on one axial side of the shell portion 120, and the cover plate 130 is sealed to the opening of the shell portion 120, so that the cover plate 130 and the shell portion 120 can surround to form a cavity 110. Correspondingly, the cover plate 130 can be located on one axial side of the cavity 110, and the generator main body 200 and the inverter 300 can be arranged in the shell portion 120, so that when the generator main body 200 and the inverter 300 need to be disassembled and maintained, the cover plate 130 can be disassembled to facilitate the maintenance of the generator main body 200 and the inverter 300 through the opening of the shell portion 120.

[0085] In some embodiments, referring to Figure 9 As shown, the motor generator of the present application can also be provided with a sealing gasket 140 and a wire. Wherein the first electrical connection part 210 of the generator main body 200 can be electrically connected with the second electrical connection part 341 of the AC busbar 340 of the inverter 300 through the wire, so that the generator main body 200 can be electrically connected with the inverter 300. The cover plate 130 is provided with a wire hole 131, and the sealing gasket 140 is sealed to the wire hole 131, and the first electrical connection part 210 and the second electrical connection part 341 can be arranged in the sealing gasket 140, and the wire is also arranged in the sealing gasket 140. In this way, one end of the wire is connected with the generator main body 200, and the other end is connected with the inverter 300. In this way, the sealing gasket 140 can fix the first electrical connection part 210 and the second electrical connection part 341, and the wire is also arranged in the sealing gasket 140, so that the structure of the wire is more stable, and correspondingly, the electrical connection effect of the generator main body 200 and the inverter 300 is more stable and reliable.

[0086] In some embodiments, referring to Figure 9 As shown, the sealing gasket 140 of the present application can also be provided with a sealing groove 141, and the groove type of the sealing groove 141 can match the outer shape of the first electrical connection part 210 and the second electrical connection part 341, so that the first electrical connection part 210 and the second electrical connection part 341 can be arranged in the sealing groove 141. The sealing groove 141 is filled with sealing glue. In this way, the first electrical connection part 210 and the second electrical connection part 341 can be protected, and the wire can be more stably and reliably fixed in the sealing gasket 140.

[0087] Based on the above motor generator, the present application also provides an automobile comprising the above motor generator.

[0088] It should be noted that the above-mentioned 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 the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric motor generator characterized by comprising: The application relates to a generator housing. The housing (100) comprises a cavity (110); The generator body (200) is arranged in the cavity (110), and the circumferential side wall of the generator body (200) is arc-shaped; The inverter (300) is arranged in the cavity (110), and the inverter (300) is located on one side of the generator body (200) in the circumferential direction; the outer wall of the side of the inverter (300) facing the generator body (200) is arc-shaped and matches the circumferential side wall of the generator body (200); the side of the inverter (300) facing away from the generator body (200) is arc-shaped and arranged along the circumferential direction of the generator body (200); and the inverter (300) is electrically connected with the generator body (200).

2. The motor generator according to claim 1, characterized by The cavity (110) comprises a first cavity (111) and a second cavity (112); the second cavity (112) is located on the circumferential side of the first cavity (111); the cavity shape of the first cavity (111) matches the shape of the generator body (200); the generator body (200) is arranged in the first cavity (111); and the cavity shape of the second cavity (112) matches the shape of the inverter (300); and the inverter (300) is arranged in the second cavity (112).

3. The motor generator according to claim 1, characterized by The generator body (200) comprises a first electrical connection part (210) arranged on one side of the generator body (200) in the axial direction; the inverter (300) comprises a second electrical connection part (341); and the first electrical connection part (210) and the second electrical connection part (341) are arranged on the same side.

4. The motor generator according to claim 2, characterized by The inverter (300) comprises a power circuit board (310), a control circuit board (330) and a capacitor (320); the capacitor (320) is arranged between the power circuit board (310) and the control circuit board (330); the capacitor (320) is electrically connected with the power circuit board (310) and the control circuit board (330); and the power circuit board (310) is electrically connected with the generator body (200).

5. The motor generator according to claim 4, characterized by The capacitor (320) is in a plurality; and the plurality of capacitors (320) are arranged at intervals along the circumferential direction of the generator body (200).

6. The motor generator according to claim 4, characterized by The power circuit board (310) further comprises a board body (311) and power semiconductors (312); the board body (311) is provided with a mounting groove (313); and at least part of the power semiconductors (312) is embedded in the mounting groove (313).

7. The motor generator according to claim 6, characterized by The power semiconductors (312) are in a plurality; and the plurality of power semiconductors (312) are arranged on the board body (311) along the circumferential direction of the generator body (200).

8. The motor generator according to any one of claims 4 to 7, characterized by The inverter (300) further comprises an alternating current busbar (340) and a direct current busbar (350), the alternating current busbar (340) is arranged on the side of the power circuit board (310) facing the control circuit board (330), and the alternating current busbar (340) is connected with the generator body (200), the direct current busbar (350) is arranged between the capacitor (320) and the control circuit board (330), and the direct current busbar (350) is connected with the capacitor (320).

9. The motor generator according to any one of claims 4 to 7, characterized by The inverter (300) further comprises a heat sink (360), the heat sink (360) is arranged on the side of the power circuit board (310) away from the control circuit board (330).

10. The motor generator according to any one of claims 1 to 7, characterized by The motor generator further comprises a heat dissipation pipeline (400), a driving pump (500) and a heat exchanger (600), the heat dissipation pipeline (400) is arranged in the shell (100), and the heat dissipation pipeline (400) is connected with the driving pump (500) and the heat exchanger (600).

11. The motor generator according to claim 10, characterized by The driving pump (500) and the heat exchanger (600) are located outside the cavity (110).

12. The motor generator according to claim 11, characterized by The heat exchanger (600), the driving pump (500) and the inverter (300) are distributed along the circumference of the generator body (200).

13. The motor generator of claim 3, wherein The shell (100) comprises a shell part (120) and a cover plate (130), the shell part (120) is provided with an opening, the cover plate (130) is sealed on the opening, and the cover plate (130) and the shell part (120) form the cavity (110) by surrounding, and the cover plate (130) is located on the axial side of the cavity (110).

14. The motor generator according to claim 13, characterized by The motor generator further comprises a sealing gasket (140) and a wire, the cover plate (130) is provided with a wire hole (131), the sealing gasket (140) is sealed on the wire hole (131), the first electrical connection part (210) and the second electrical connection part (341) are arranged in the sealing gasket (140), and the wire is electrically connected with the first electrical connection part (210) and the second electrical connection part (341) at two ends, and the wire is located in the sealing gasket (140).

15. The motor generator of claim 14, wherein The sealing gasket (140) further comprises a sealing groove (141), the first electrical connection part (210) and the second electrical connection part (341) are embedded in the sealing groove (141), and the sealing groove (141) is filled with sealing glue.

16. An automobile characterized by comprising: The motor generator comprises the motor generator according to any one of claims 1-12. The motor generator comprises the motor generator according to any one of claims 1-12.

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