Motor controller and vehicle

Abstract

The utility model provides a motor controller and a vehicle. The motor controller comprises a body and at least three discrete devices. Wherein at least three mounting parts are formed on the body; the discrete devices are arranged on the mounting part, and the three discrete devices are sequentially arranged at intervals in the first direction; one discrete device comprises an upper bridge discrete device and a lower bridge discrete device, the upper bridge discrete device is electrically connected with the lower bridge discrete device, the upper bridge discrete device and the lower bridge discrete device are respectively arranged on the same mounting part, and in the first direction, the upper bridge discrete device and the lower bridge discrete device are arranged at an interval. In the first direction, the two adjacent discrete devices are arranged at intervals, so that the connection distance between the lower bridge discrete device of the previous discrete device and the upper bridge discrete device of the next discrete device can be shortened. The problems that the layout of a power module group on a power circuit board is limited, reasonable layout is not facilitated, and the size is not reduced are solved.

Description

Technical Field

[0001] This application relates to the technical field of canned pumps, and particularly to a motor controller and a vehicle. Background Art

[0002] A motor controller usually includes a power circuit board, which can invert direct current into alternating current to control the speed and torque of the motor.

[0003] In a high-power motor controller, the current is usually large, often reaching several hundred amperes. Small-current power devices can no longer meet the requirements. Therefore, a power device module is often selected, and the power device module contains multiple parallel-connected small-current power devices.

[0004] In the related art, the shape of the power device module is fixed, and the layout of the power module group on the power circuit board is limited, which is not conducive to reasonable layout and volume reduction. Utility Model Content

[0005] This application provides a motor controller and a vehicle to solve the problem that the layout of the power module group on the power circuit board is limited, which is not conducive to reasonable layout and volume reduction.

[0006] On the one hand, this application provides a motor controller, including:

[0007] A body, on which at least three mounting parts are formed;

[0008] At least three discrete devices, which are respectively arranged on the mounting parts and are arranged at intervals in the first direction;

[0009] Among them, one discrete device includes: an upper-bridge discrete device and a lower-bridge discrete device. The upper-bridge discrete device and the lower-bridge discrete device are electrically connected, and the upper-bridge discrete device and the lower-bridge discrete device are respectively arranged on the same mounting part and are arranged at intervals in the first direction.

[0010] In a feasible implementation manner, the upper-bridge discrete device forms a first positive electrode part and a first negative electrode part, and the lower-bridge discrete device forms a second positive electrode part and a second negative electrode part; the first positive electrode part is electrically connected to the second negative electrode part, and the first negative electrode part is electrically connected to the second positive electrode part;

[0011] In the first direction, the first positive electrode part and the second negative electrode part are arranged at intervals, and the first negative electrode part and the second positive electrode part are arranged at intervals.

[0012] In a feasible implementation manner, it further includes:

[0013] A capacitor, which is arranged on the body and is electrically connected to the discrete device;

[0014] AC copper busbar, which is arranged on the main body and is electrically connected to the discrete device;

[0015] The capacitors and the AC copper busbars are spaced apart and distributed on both sides of the discrete device along the second direction, and the first direction and the second direction are arranged crosswise.

[0016] In a feasible implementation manner, the capacitor is formed with a third positive electrode portion and a third negative electrode portion, and the third positive electrode portion is electrically connected to one of the first positive electrode portion and the second positive electrode portion;

[0017] When the third positive electrode portion is electrically connected to the first positive electrode portion, the third negative electrode portion is electrically connected to the second negative electrode portion;

[0018] When the third positive electrode portion is electrically connected to the second positive electrode portion, the third negative electrode portion is electrically connected to the first negative electrode portion.

[0019] In a feasible implementation manner, the AC copper busbar is disposed at an end of the body away from the capacitor; and the AC copper busbar is electrically connected to the capacitor;

[0020] When the third positive electrode portion is electrically connected to the first positive electrode portion, the AC copper busbar is electrically connected to the second positive electrode portion and the first negative electrode portion respectively;

[0021] When the third positive electrode portion is electrically connected to the second positive electrode portion, the AC copper busbar is electrically connected to the first positive electrode portion and the second negative electrode portion, respectively.

[0022] In a feasible implementation manner, three discrete devices form a discrete device group, and the discrete device group is provided with a plurality of;

[0023] In the first direction, two adjacent discrete device groups are arranged at intervals;

[0024] And / or, in the height direction of the body, two adjacent discrete device groups are arranged at intervals.

[0025] In a feasible implementation manner, a discrete device group includes: a U-phase discrete device, a V-phase discrete device, and a W-phase discrete device electrically connected in sequence.

[0026] In a feasible implementation manner, a plurality of discrete devices are provided, and in the first direction, two adjacent discrete devices are arranged at an interval.

[0027] In a feasible implementation manner, a plurality of discrete devices are provided, and in the height direction of the body, two adjacent discrete devices are arranged at intervals.

[0028] In a feasible implementation, the body includes:

[0029] At least one first heat dissipation plate, the mounting portion being disposed on the first heat dissipation plate;

[0030] A second heat dissipation plate is disposed on a side of the first heat dissipation plate away from the mounting portion, and the first heat dissipation plate and the second heat dissipation plate are detachably connected;

[0031] The discrete device is disposed on a side of the first heat dissipation plate away from the second heat dissipation plate. The first heat dissipation plate and the second heat dissipation plate enclose a cooling cavity, and the cooling cavity is disposed on a side of the first heat dissipation plate away from the discrete device. The cooling cavity is used to accommodate a cooling medium.

[0032] In a feasible implementation manner, the first heat dissipation plate is formed with a plurality of heat dissipation portions. The heat dissipation portions are disposed on a side of the first heat dissipation plate away from the mounting portion, and at least a part of the heat dissipation portions is received in the cooling cavity.

[0033] In a feasible implementation manner, in a first direction, two adjacent heat dissipation portions are spaced apart;

[0034] And / or, in a direction perpendicular to the first direction and perpendicular to the height direction of the body, two adjacent heat dissipation portions are spaced apart.

[0035] In a feasible implementation manner, there are two first heat dissipation plates, and the two first heat dissipation plates are respectively disposed at two ends of the second heat dissipation plate. A discrete device is disposed on a side of one of the first heat dissipation plates away from the second heat dissipation plate; another discrete device is disposed on a side of the other first heat dissipation plate away from the second heat dissipation plate.

[0036] On the other hand, the present application provides a vehicle, including a vehicle body and a motor controller, and the motor controller is disposed on the vehicle body.

[0037] In a motor controller and a vehicle provided by the present application, in the motor controller, an upper-bridge discrete device and a lower-bridge discrete device in a discrete device are spaced apart in a first direction, which can reduce the installation space of a discrete device on the main body; in the first direction, two adjacent discrete devices are spaced apart, which can shorten the connection distance between the lower-bridge discrete device of the previous discrete device and the upper-bridge discrete device of the next discrete device, thereby increasing the power density on the main body per unit area.

[0038] Therefore, the motor controller provided by the embodiments of the present application can solve the problems that the layout of the power module group on the power circuit board is limited, which is not conducive to reasonable layout and reducing the volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0040] Figure 1 It is a first schematic structural diagram of the main body of the motor controller provided by the embodiments of the present application;

[0041] Figure 2 The second schematic diagram of the main structure of the motor controller provided by the embodiment of the present application;

[0042] Figure 3 The third schematic diagram of the main structure of the motor controller provided by the embodiment of the present application;

[0043] Figure 4 The fourth schematic diagram of the main structure of the motor controller provided by the embodiment of the present application;

[0044] Figure 5 The fifth schematic diagram of the main structure of the motor controller provided by the embodiment of the present application;

[0045] Figure 6 The sixth schematic diagram of the main structure of the motor controller provided by the embodiment of the present application.

[0046] Explanation of reference numerals:

[0047] 1 - Body; 11 - First heat dissipation plate; 111 - Heat dissipation part; 12 - Second heat dissipation plate; 13 - Cooling cavity;

[0048] 2 - Discrete device; 21 - Upper bridge discrete device; 211 - First positive part; 212 - First negative part; 22 - Lower bridge discrete device; 221 - Second positive part; 222 - Second negative part;

[0049] 3 - Capacitor; 31 - Third positive part; 32 - Third negative part;

[0050] 4 - AC busbar;

[0051] X - First direction;

[0052] Y - Second direction.

[0053] Through the above - mentioned drawings, the clear embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0054] A motor controller usually includes a power circuit board, which can invert direct current into alternating current to achieve the control of the motor speed and torque.

[0055] In a high - power motor controller, the current is usually large, often reaching several hundred amperes, and small - current power devices can no longer meet the requirements. Therefore, a power device module is often selected, and the power device module contains multiple parallel small - current power devices.

[0056] In the related art, the shape of the power device module is fixed, and the layout of the power module group on the power circuit board is restricted, which is not conducive to reasonable layout and volume reduction.

[0057] As Figures 1 to 6 shown, an embodiment of the present application provides a motor controller, including: a body 1 and at least three discrete devices 2. Among them, the body 1 is formed with at least three mounting parts; the discrete devices 2 are arranged on the mounting parts, and in the first direction X, the three discrete devices 2 are arranged at intervals in sequence; one discrete device 2 includes: an upper-bridge discrete device 21 and a lower-bridge discrete device 22, the upper-bridge discrete device 21 and the lower-bridge discrete device 22 are electrically connected, the upper-bridge discrete device 21 and the lower-bridge discrete device 22 are respectively arranged on the same mounting part, and in the first direction X, the upper-bridge discrete device 21 and the lower-bridge discrete device 22 are arranged at intervals.

[0058] It can be understood that the upper-bridge discrete device 21 and the lower-bridge discrete device 22 of one discrete device 2 are arranged at intervals in the first direction X, which can reduce the installation space of one discrete device 2 on the main body; in the first direction X, two adjacent discrete devices 2 are arranged at intervals, which can shorten the connection distance between the lower-bridge discrete device 22 of the previous discrete device 2 and the upper-bridge discrete device 21 of the next discrete device 2, thereby increasing the power density on the main body per unit area.

[0059] Thus, the motor controller provided by the embodiment of the present application can solve the problem that the layout of the power module group on the power circuit board is restricted, which is not conducive to reasonable layout and volume reduction.

[0060] It should be noted that there are various different installation methods between the discrete device 2 and the body 1. The installation methods between the discrete device 2 and the body 1 will be exemplified below.

[0061] In a feasible embodiment, the discrete device 2 is fixed on the mounting part by soldering.

[0062] In another feasible embodiment, a first fastening member is arranged on the side of the discrete device 2 close to the mounting part, and a second fastening member is arranged on the side of the mounting part close to the discrete device 2, and the first fastening member and the second fastening member are fixedly connected.

[0063] It can be understood that the specific connection method between the discrete device 2 and the body 1 is not limited and can be selected according to actual use requirements.

[0064] It should be noted that the first direction X has various different setting orientations. The orientations of the first direction X will be exemplified below.

[0065] In a feasible embodiment, the first direction X is set perpendicular to the height direction of the radiator.

[0066] In another feasible implementation manner, the first direction X is arranged parallel to the height direction of the heat sink.

[0067] It can be understood that the specific setting direction of the first direction X is not limited and can be selected according to actual usage requirements.

[0068] The upper bridge separator 21 provided in the embodiment of the present application is formed with a first positive electrode portion 211 and a first negative electrode portion 212, and the lower bridge separator 22 is formed with a second positive electrode portion 221 and a second negative electrode portion 222; the first positive electrode portion 211 is electrically connected to the second negative electrode portion 222, and the first negative electrode portion 212 is electrically connected to the second positive electrode portion 221; in the first direction X, the first positive electrode portion 211 and the second negative electrode portion 222 are spaced apart, and the first negative electrode portion 212 and the second positive electrode portion 221 are spaced apart.

[0069] It can be understood that the first positive electrode portion 211 and the first negative electrode portion 212 are arranged opposite to each other, and the second positive electrode portion 221 and the second negative electrode portion 222 are arranged opposite to each other; the first positive electrode portion 211, the first negative electrode portion 212, the second positive electrode portion 221, and the second negative electrode portion 222 are electrically connected in sequence.

[0070] The motor controller provided by the embodiment of the present application includes: a capacitor 3 and an AC copper busbar 4. The capacitor 3 is arranged on the body 1 and is electrically connected to the discrete device 2; the AC copper busbar 4 is arranged on the body 1 and is electrically connected to the discrete device 2; the capacitor 3 and the AC copper busbar 4 are spaced apart on both sides of the discrete device 2 along the second direction Y, and the first direction X and the second direction Y are arranged crosswise.

[0071] It should be noted that, in the second direction Y, the capacitor 3 and the AC copper busbar 4 are arranged at intervals, that is, the capacitor 3 is arranged on the side of the body 1 away from the AC copper busbar 4, and the AC copper busbar 4 is arranged on the side of the body 1 away from the capacitor 3.

[0072] It should be noted that the first direction X and the second direction Y are arranged at an angle, and the angle between the first direction X and the second direction Y has various degrees. The degrees of the angle between the first direction X and the second direction Y are described below with examples.

[0073] In a feasible implementation manner, the first direction X and the second direction Y are arranged at an angle of 90 degrees, that is, the first direction X is arranged perpendicular to the second direction Y.

[0074] In another feasible implementation manner, the first direction X and the second direction Y are arranged at an angle of 45 degrees.

[0075] It is understandable that the angle between the first direction X and the second direction Y is not limited and can be selected according to actual use requirements.

[0076] The capacitor 3 provided in the embodiment of the present application is formed with a third positive electrode portion 31 and a third negative electrode portion 32 , and the third positive electrode portion 31 is electrically connected to one of the first positive electrode portion 211 and the second positive electrode portion 221 .

[0077] It should be noted that there are various connection positions of the third positive electrode portion 31 , and the connection positions of the third positive electrode portion 31 are described below with examples.

[0078] In a feasible implementation manner, the third positive electrode portion 31 is electrically connected to the first positive electrode portion 211 , and the third negative electrode portion 32 is electrically connected to the second negative electrode portion 222 .

[0079] In another feasible implementation manner, the third positive electrode portion 31 is electrically connected to the second positive electrode portion 221 , and the third negative electrode portion 32 is electrically connected to the first negative electrode portion 212 .

[0080] It is understandable that the connection position of the third positive electrode portion 31 is not limited and can be selected according to actual use requirements. It only needs to ensure that the third positive electrode portion 31 is electrically connected to one of the first positive electrode portion 211 and the second positive electrode portion 221 .

[0081] The AC copper busbar 4 provided in the embodiment of the present application is disposed at an end of the body 1 away from the capacitor 3 , and the AC copper busbar 4 is electrically connected to the capacitor 3 .

[0082] It should be noted that, when there are multiple connection positions of the third positive electrode portion 31 , there are multiple installation positions of the AC copper busbar 4 . The following will illustrate the installation positions of the AC copper busbar 4 in turn.

[0083] In a feasible implementation manner, when the third positive electrode portion 31 is electrically connected to the first positive electrode portion 211 , the AC copper busbar 4 is electrically connected to the second positive electrode portion 221 and the first negative electrode portion 212 , respectively.

[0084] In another feasible implementation manner, when the third positive electrode portion 31 is electrically connected to the second positive electrode portion 221 , the AC copper busbar 4 is electrically connected to the first positive electrode portion 211 and the second negative electrode portion 222 , respectively.

[0085] It is understandable that when there are multiple connection positions for the third positive electrode portion 31 , there is no restriction on the installation position of the AC copper bus 4 , and it is only necessary to ensure that the AC copper bus 4 is arranged on the side of the discrete device 2 away from the capacitor 3 .

[0086] The three discrete devices 2 provided in the embodiment of the present application form a discrete device group 2, and the discrete device group 2 is provided with multiple discrete devices; the multiple discrete device groups 2 are formed in a variety of different arrangements. The arrangement of the multiple discrete device groups 2 is illustrated in turn below.

[0087] In a feasible implementation, in the first direction X, two adjacent sets of discrete devices 2 are arranged at intervals; and the two adjacent sets of discrete devices 2 are electrically connected.

[0088] In another feasible implementation, in the height direction of the body 1, two adjacent sets of discrete devices 2 are arranged at intervals.

[0089] It can be understood that among two adjacent sets of discrete devices 2, one set of discrete devices 2 is located above the other set of discrete devices 2.

[0090] In addition, in other feasible implementations, in the first direction X, two adjacent sets of discrete devices 2 are arranged in parallel, and the two sets of discrete devices 2 are arranged at intervals in the height direction of the body 1.

[0091] It can be understood that the arrangement manner of multiple sets of discrete devices 2 is not limited and can be selected according to actual usage requirements.

[0092] It can be understood that the set number of discrete devices 2 is three times the set number of sets of discrete devices 2.

[0093] One set of discrete devices 2 provided by the embodiment of the present application includes: a U-phase discrete device 2, a V-phase discrete device 2, and a W-phase discrete device 2 that are electrically connected in sequence.

[0094] It should be noted that two adjacent sets of discrete devices 2 are electrically connected.

[0095] The embodiment of the present application provides multiple discrete devices 2, and two adjacent discrete devices 2 have multiple different arrangement manners. The arrangement manners of the discrete devices 2 will be exemplified below.

[0096] In a feasible implementation, in the first direction X, two adjacent discrete devices 2 are arranged at intervals, that is, in the first direction X, the U-phase discrete device 2, the V-phase discrete device 2, and the W-phase discrete device 2 are arranged at intervals in sequence.

[0097] In another feasible implementation, in the height direction of the body 1, two adjacent discrete devices 2 are arranged at intervals, that is, in the height direction of the body 1, the U-phase discrete device 2 located in the upper layer and the U-phase discrete device 2 located in the lower layer are arranged at intervals; the V-phase discrete device 2 located in the upper layer and the V-phase discrete device 2 located in the lower layer are arranged at intervals; the W-phase discrete device 2 located in the upper layer and the W-phase discrete device 2 located in the lower layer are arranged at intervals.

[0098] In addition, in another feasible embodiment, in the height direction of the body 1, two adjacent discrete devices 2 are arranged at intervals, and in the first direction X, two adjacent discrete devices 2 are arranged at intervals. That is, the U-phase discrete device 2 located on the upper layer and the U-phase discrete device 2 located on the lower layer are arranged at intervals in the first direction X; the V-phase discrete device 2 located on the upper layer and the V-phase discrete device 2 located on the lower layer are arranged at intervals in the first direction X; the W-phase discrete device 2 located on the upper layer and the W-phase discrete device 2 located on the lower layer are arranged at intervals in the first direction X.

[0099] It is understandable that there is no limitation on the arrangement of two adjacent discrete devices 2 , and it can be selected according to actual use requirements.

[0100] The main body 1 provided in the embodiment of the present application includes: a first heat sink 11 and a second heat sink 12; a mounting portion is arranged on the first heat sink 11, and the second heat sink 12 is arranged on a side of the first heat sink 11 away from the mounting portion, and the first heat sink 11 and the second heat sink 12 are detachably connected; the discrete device 2 is arranged on a side of the first heat sink 11 away from the second heat sink 12, and the first heat sink 11 and the second heat sink 12 enclose a cooling chamber 13, and the cooling chamber 13 is arranged on a side of the first heat sink 11 away from the discrete device 2, and the cooling chamber 13 is used to accommodate a cooling medium.

[0101] It should be noted that the motor controller provided in the embodiment of the present application also includes: a sealing ring, which is arranged between the first heat sink 11 and the second heat sink 12, one side of the sealing ring abuts the first heat sink 11, and the other side of the sealing ring abuts the second heat sink 12, and the sealing ring is used to seal and connect the first heat sink 11 and the second heat sink 12 to protect the cooling medium in the cooling chamber 13.

[0102] It should be noted that the motor controller provided in the embodiment of the present application further includes: a recessed portion, which is disposed on at least one of the first heat sink 11 and the second heat sink 12 , and is used to accommodate a cooling medium.

[0103] It should be noted that the recessed portion has many different installation positions. The installation positions of the recessed portion are illustrated below one by one.

[0104] In a feasible embodiment, the recessed portion is arranged on the side of the first heat sink 11 away from the mounting portion, and is recessed toward the side close to the mounting portion; the recessed portion, the first heat sink 11 and the second heat sink 12 together enclose a cooling chamber 13 to accommodate the cooling medium.

[0105] In another feasible embodiment, the recessed portion is arranged on a side of the second heat sink 12 close to the first heat sink 11, and extends along a side away from the mounting portion; the recessed portion, the first heat sink 11 and the second heat sink 12 together enclose a cooling chamber 13 to accommodate the cooling medium.

[0106] In addition, in other feasible embodiments, two recessed portions are provided, one of which is provided on a side of the first heat sink 11 away from the mounting portion, and is recessed toward a side close to the mounting portion, and the other recessed portion is provided on a side of the second heat sink 12 close to the first heat sink 11, and is extended along a side away from the mounting portion; the two recessed portions are connected, and the two recessed portions, the first heat sink 11, and the second heat sink 12 together enclose a cooling chamber 13 to accommodate the cooling medium.

[0107] It is understandable that the installation position of the recessed portion is not limited and can be selected according to actual use requirements. It only needs to ensure that the recessed portion, the first heat sink 11 and the second heat sink 12 together form a cooling chamber 13 to accommodate the cooling medium.

[0108] The first heat sink 11 provided in the embodiment of the present application is formed with a plurality of heat sinks 111 . The heat sink 111 is arranged on a side of the first heat sink 11 away from the mounting portion. The heat sink 111 is at least partially accommodated in the cooling chamber 13 .

[0109] It should be noted that one end of the heat dissipation portion 111 is disposed on the first heat dissipation plate 11 , the other end of the heat dissipation portion 111 extends toward a side close to the second heat dissipation plate 12 , and at least a portion of the heat dissipation portion 111 is accommodated in the cooling chamber 13 .

[0110] It should be noted that there are many different connection methods between the heat dissipation portion 111 and the first heat dissipation plate 11 . The connection methods between the heat dissipation portion 111 and the first heat dissipation plate 11 are described below in turn with examples.

[0111] In a feasible implementation, the heat dissipation portion 111 is welded and fixed on the first heat dissipation plate 11 . The heat dissipation portion 111 is welded and fixed on the first heat dissipation plate 11 , which has the advantage of low processing cost.

[0112] In another feasible implementation manner, the heat dissipation portion 111 and the first heat dissipation plate 11 are integrally formed, and the integral formation of the heat dissipation portion 111 and the first heat dissipation plate 11 has the advantage of high connection strength.

[0113] It is understandable that there is no limitation on the connection method between the main body 1 and the first heat sink 11 , and it can be selected according to actual use requirements.

[0114] It should be noted that when the discrete device 2 is in operation, heat is generated. The surface temperature of the discrete device 2 is higher than that of the first heat dissipation plate 11. Heat exchange occurs between the discrete device 2 and the first heat dissipation plate 11, and the heat of the discrete device 2 is transferred to the heat dissipation part 111. The surface temperature of the heat dissipation part 111 is higher than the internal temperature of the cooling medium. Heat exchange occurs between the heat dissipation part 111 and the cooling medium to reduce the temperature of the heat dissipation part 111, thereby cooling the first heat dissipation plate 11 and the discrete device 2.

[0115] It can be understood that the heat dissipation part 111 can increase the surface area of the contact surface between the first heat dissipation plate 11 and the cooling medium, thereby improving the heat dissipation efficiency of the first heat dissipation plate 11, reducing the surface temperature of the discrete device 2, and thus providing safety protection for the discrete device 2.

[0116] The heat dissipation part 111 provided in the embodiment of the present application has a variety of different arrangement modes. The arrangement modes of the heat dissipation part 111 will be exemplified below in turn.

[0117] In a feasible implementation mode, in the first direction X, two adjacent heat dissipation parts 111 are arranged at intervals.

[0118] In another feasible implementation mode, in the direction perpendicular to the first direction X and perpendicular to the height direction of the body 1, two adjacent heat dissipation parts 111 are arranged at intervals.

[0119] In addition, in another feasible implementation mode, two adjacent heat dissipation parts 111 are arranged at intervals in the first direction X, and are also arranged at intervals in the direction perpendicular to the first direction X and perpendicular to the height direction of the body 1.

[0120] It can be understood that the arrangement mode between two adjacent heat dissipation parts 111 is not limited and can be selected according to actual use requirements.

[0121] It should be noted that the first heat dissipation plate 11 provided in the embodiment of the present application has a variety of different setting numbers. The setting numbers of the first heat dissipation plate 11 will be exemplified below in turn.

[0122] In a feasible implementation mode, one first heat dissipation plate 11 is provided, and one first heat dissipation plate 11 is arranged in cooperation with the first and second heat dissipation plates 12.

[0123] In another feasible implementation mode, two first heat dissipation plates 11 are provided. The two first heat dissipation plates 11 are respectively arranged at both ends of the second heat dissipation plate 12. One discrete device 2 is arranged on the side of one first heat dissipation plate 11 facing away from the second heat dissipation plate 12; another discrete device 2 is arranged on the side of the other first heat dissipation plate 11 facing away from the second heat dissipation plate 12.

[0124] It is understandable that there is no limit to the number of first heat sinks 11 , and the number can be selected according to actual usage requirements.

[0125] It should be noted that the capacitor 3 is formed with a fixing portion, and the fixing portion is fixedly disposed on the body 1 .

[0126] It should be noted that, when one first heat sink 11 is provided, there are a variety of different installation relationships between the capacitor 3 and the body 1 . The installation relationships between the capacitor 3 and the body 1 are described below with examples.

[0127] In a feasible implementation manner, the capacitor 3 is disposed on a side of the first heat sink 11 facing away from the second heat sink 12 .

[0128] It should be noted that, in the second direction Y, the discrete device 2 and the capacitor 3 are arranged at an interval.

[0129] In another possible implementation, the capacitor 3 is disposed on a side of the second heat sink 12 facing away from the first heat sink 11 .

[0130] It should be noted that, in the height direction of the body 1 , the discrete device 2 and the capacitor 3 are spaced apart from each other; and the discrete device 2 is located above the capacitor 3 .

[0131] It is understandable that, when one first heat sink 11 is provided, there is no restriction on the installation relationship between the capacitor 3 and the body 1 , and the installation relationship can be selected according to actual use requirements.

[0132] It should be noted that, when the capacitor 3 is arranged on the side of the second heat sink 12 away from the first heat sink 11, the capacitor 3 generates heat when in operation, the surface temperature of the capacitor 3 is higher than the surface temperature of the second heat sink 12, heat exchange occurs between the capacitor 3 and the second heat sink 12, the heat of the capacitor 3 will be transferred to the second heat sink 12, the surface temperature of the second heat sink 12 is higher than the internal temperature of the cooling medium, heat exchange occurs between the second heat sink 12 and the cooling medium to reduce the temperature of the second heat sink 12, thereby cooling the second heat sink 12 and the capacitor 3.

[0133] It should be noted that the cooling chamber 13 is formed with a first opening and a second opening; the first opening is connected to the cooling chamber 13 and is externally connected to the cooling medium input end; the second opening is connected to the cooling chamber 13 and is externally connected to the cooling medium output end.

[0134] It can be understood that the cooling medium can enter the cooling chamber 13 through the first opening under the driving force, and is guided to the second opening after passing through the cooling chamber 13 to be guided to the outside.

[0135] It should be noted that there are various different setting methods for the cooling medium, and the setting methods of the cooling medium will be exemplified below in turn.

[0136] In a feasible implementation manner, the cooling medium can be water.

[0137] In another feasible implementation manner, the cooling medium is an ethylene glycol aqueous solution.

[0138] It can be understood that the specific setting type of the cooling medium is not limited and can be selected according to actual usage requirements.

[0139] The embodiment of the present application provides a vehicle, including a vehicle body and the motor controller provided in Embodiment 1, and the motor controller is arranged on the vehicle body.

[0140] Those skilled in the art will readily think of other implementation schemes of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include the common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0141] It should be understood that the present application is not limited to the precise structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A motor controller, characterized in that: include, A body, the body being formed with at least three mounting portions; At least three discrete devices are respectively arranged on the mounting portion, and the three discrete devices are arranged in sequence and spaced apart in a first direction; Among them, one of the discrete devices includes: an upper bridge discrete device and a lower bridge discrete device, the upper bridge discrete device and the lower bridge discrete device are electrically connected, the upper bridge discrete device and the lower bridge discrete device are respectively arranged on the same mounting portion, and in the first direction, the upper bridge discrete device and the lower bridge discrete device are arranged at intervals.

2. A motor controller according to claim 1, characterized in that: The upper bridge discrete device is formed with a first positive electrode portion and a first negative electrode portion, and the lower bridge discrete device is formed with a second positive electrode portion and a second negative electrode portion; the first positive electrode portion is electrically connected to the second negative electrode portion, and the first negative electrode portion is electrically connected to the second positive electrode portion; In the first direction, the first positive electrode portion and the second negative electrode portion are spaced apart from each other, and the first negative electrode portion and the second positive electrode portion are spaced apart from each other.

3. A motor controller according to claim 2, characterized in that: Also includes: A capacitor, the capacitor being disposed on the body and electrically connected to the discrete device; An AC copper busbar, which is disposed on the body and is electrically connected to the discrete device; The capacitor and the AC copper bus are distributed at intervals on both sides of the discrete device along the second direction, and the first direction and the second direction are arranged crosswise.

4. A motor controller according to claim 3, characterized in that: The capacitor is formed with a third positive electrode portion and a third negative electrode portion, and the third positive electrode portion is electrically connected to one of the first positive electrode portion and the second positive electrode portion; When the third positive electrode portion is electrically connected to the first positive electrode portion, the third negative electrode portion is electrically connected to the second negative electrode portion; When the third positive electrode portion is electrically connected to the second positive electrode portion, the third negative electrode portion is electrically connected to the first negative electrode portion.

5. A motor controller according to claim 4, characterized in that: The AC copper busbar is disposed at one end of the body away from the capacitor; and the AC copper busbar is electrically connected to the capacitor; When the third positive electrode portion is electrically connected to the first positive electrode portion, the AC copper busbar is electrically connected to the second positive electrode portion and the first negative electrode portion respectively; When the third positive electrode portion is electrically connected to the second positive electrode portion, the AC copper busbar is electrically connected to the first positive electrode portion and the second negative electrode portion, respectively.

6. A motor controller according to claim 1, characterized in that: The three discrete devices form a discrete device group, and the discrete device group is provided with a plurality of discrete devices; In the first direction, two adjacent discrete device groups are arranged at intervals; And / or, in the height direction of the main body, two adjacent discrete device groups are arranged at intervals.

7. A motor controller according to claim 6, characterized in that: One discrete device group includes: a U-phase discrete device, a V-phase discrete device and a W-phase discrete device electrically connected in sequence.

8. A motor controller according to claim 1, characterized in that: There are a plurality of discrete devices, and in the first direction, two adjacent discrete devices are spaced apart from each other.

9. A motor controller according to claim 1, characterized in that: There are a plurality of discrete components, and in the height direction of the body, two adjacent discrete components are spaced apart from each other.

10. A motor controller according to any one of claims 1 to 9, characterized in that: The body comprises: at least one first heat dissipation plate, the mounting portion being arranged on the first heat dissipation plate; A second heat sink is disposed on a side of the first heat sink facing away from the mounting portion, and the first heat sink and the second heat sink are detachably connected; The discrete device is arranged on a side of the first heat sink away from the second heat sink. The first heat sink and the second heat sink together form a cooling chamber. The cooling chamber is arranged on a side of the first heat sink away from the discrete device. The cooling chamber is used to accommodate a cooling medium.

11. A motor controller according to claim 10, characterized in that: The first heat sink is formed with a plurality of heat sinks, the heat sinks are arranged on a side of the first heat sink away from the mounting portion, and the heat sinks are at least partially accommodated in the cooling chamber.

12. A motor controller according to claim 11, characterized in that: In the first direction, two adjacent heat dissipation parts are arranged at intervals; And / or, in a direction perpendicular to the first direction and perpendicular to the height of the body, two adjacent heat dissipation parts are arranged at intervals.

13. A motor controller according to claim 10, characterized in that: There are two first heat sinks, which are arranged at both ends of the second heat sink. One of the first heat sinks is provided with one discrete device on a side away from the second heat sink. Another discrete device is provided on a side away from the second heat sink of the other first heat sink.

14. A vehicle, characterized in that: It comprises a vehicle body and a motor controller according to any one of claims 1 to 9, wherein the motor controller is arranged on the vehicle body.

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