Motor controller, motor and electrical equipment

Abstract

The present application provides a motor controller, a motor and an electrical appliance device having the above-mentioned motor controller. The motor controller includes a box body, a radiator and a control board. The box body includes a control end and a connection end arranged at intervals along a first direction. The connection end is used for connecting with a motor body. The control board is installed at the control end and is used for forming an electrical connection with the motor body to control the operation of the motor body. An electronic control component is provided on the control board. The radiator is arranged on the control end and is used for dissipating heat of the electronic control component. The radiator and the box body are of a separable structure. Since the radiator and the box body are of a separable structure, the radiator can be made of a metal material with a higher heat dissipation effect, while the box body can be made of a plastic material with a lower cost and a simple manufacturing process. Thereby, the cost can be reduced and the manufacturing process can be simplified.

Description

[0001] This application is a divisional application of the case with the filing date of "November 29, 2019", the application number of "201911197404.3", and the application title of "Motor Controller, Motor and Electrical Equipment". Technical Field

[0002] This application belongs to the technical field of motors. More specifically, it relates to a motor controller, a motor and an electrical equipment. Background Art

[0003] A motor refers to a motor body and a motor controller installed together, so that the circuit connection between the motor controller and the motor body can be facilitated. The motor controller includes a radiator, which is provided at the control end and used for dissipating heat of the electronic control components. In the related art, the cost of the motor controller is high and the manufacturing process is complex. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a motor controller, which can reduce costs and simplify the manufacturing process.

[0005] The present invention also provides a motor and an electrical equipment having the above-mentioned motor controller.

[0006] The motor controller according to the first aspect embodiment of the present invention includes a box body, a radiator and a control board. The box body includes a control end and a connection end arranged at intervals along a first direction. The connection end is used for connecting with the motor body. The control board is installed at the control end and is used for forming an electrical connection with the motor body to control the operation of the motor body. Electronic control components are provided on the control board. The radiator is provided on the control end and is used for dissipating heat of the electronic control components. The radiator and the box body are of a separable structure.

[0007] The motor controller according to the embodiment of the present invention has at least the following beneficial effects: The radiator and the box body are of a separable structure. In this way, the radiator can be made of a metal material with a higher heat dissipation effect, while the box body can be made of a plastic material with a lower cost and a simple manufacturing process. Thus, the cost can be reduced and the manufacturing process can be simplified.

[0008] According to some embodiments of the present invention, the box body includes a bottom plate and a side plate. The side plate extends along the first direction from the periphery of the bottom plate. The bottom plate and the side plate enclose an installation cavity. The control end is located on the bottom plate. The control board is arranged in the installation cavity and is close to the bottom plate. The side plate is used for connecting with the motor body.

[0009] According to some embodiments of the present invention, the control board is installed on the bottom plate and / or the side plate.

[0010] According to some embodiments of the present invention, a plurality of first mounting feet for connecting with the motor body extend along the first direction at the periphery of the side plate, and the connecting end is the end of the first mounting foot far from the side plate.

[0011] According to some embodiments of the present invention, a first through groove is formed between two adjacent first mounting feet, and each first through groove communicates with the mounting cavity.

[0012] According to some embodiments of the present invention, the inner side wall of the first mounting foot is flush with the inner side wall of the side plate, and the outer side wall of the first mounting foot is flush with the outer side wall of the side plate.

[0013] According to some embodiments of the present invention, reinforcing ribs are convexly provided on the outer side wall of the first mounting foot.

[0014] According to some embodiments of the present invention, a first mounting plate extends at the end of the first mounting foot far from the side plate, and a first mounting hole is provided on the first mounting plate.

[0015] According to some embodiments of the present invention, the connecting end is the end of the side plate far from the bottom plate, the side plate is used for directly connecting with the motor body, and a plurality of second through grooves communicating with the mounting cavity are provided on the side plate.

[0016] According to some embodiments of the present invention, a second mounting plate extends at the periphery of the side plate, and a second mounting hole is provided on the second mounting plate.

[0017] According to some embodiments of the present invention, the outer side wall of the control board abuts against the inner side wall of the side plate, and a glue cavity for pouring glue is formed by enclosing the control board and the side plate.

[0018] According to some embodiments of the present invention, a main chip is provided on the control board, the main chip is provided on the side of the control board far from the connecting end, and the radiator directly or through the box body abuts against the main chip.

[0019] According to some embodiments of the present invention, the radiator is formed of a metal material, and the box body is formed of a BMC material or a plastic material; the radiator is embedded in the box body.

[0020] According to some embodiments of the present invention, the radiator is made of an aluminum alloy material, the box body is formed by stretching a BMC material, and the radiator is fixed to the box body by fasteners.

[0021] According to some embodiments of the present invention, an installation window is formed on the box body. The radiator includes a heat dissipation plate and second heat dissipation fins distributed on the heat dissipation plate. The heat dissipation plate is installed at the installation window, and the second heat dissipation fins protrude outside the box body.

[0022] The motor according to the embodiment of the second aspect of the present invention includes a motor body. The motor further includes the motor controller according to the embodiment of the first aspect of the present invention, and the connection end is connected to the motor body.

[0023] The motor according to the embodiment of the present invention has at least the following beneficial effects: By adopting the motor controller according to the embodiment of the first aspect of the present invention, the radiator can be made of a metal material with a higher heat dissipation effect, while the box body can be made of a plastic material with a lower cost and a simple manufacturing process. Thereby, the cost can be reduced and the manufacturing process can be simplified.

[0024] According to some embodiments of the present invention, the motor body includes a rear end cover. A plurality of second screw posts are provided on the rear end cover, and the connection end is connected to each of the second screw posts through a fastener.

[0025] According to some embodiments of the present invention, the rear end cover is provided with two second mounting feet for mounting on an electrical device. The radiator and the second mounting feet are spaced apart along a second direction, and the end of the second mounting foot protrudes from the end of the radiator along a first direction. The second direction is perpendicular to the first direction.

[0026] The electrical device according to the embodiment of the third aspect of the present invention includes a cylinder body, and further includes the motor according to the embodiment of the second aspect of the present invention. The motor is installed on the cylinder body.

[0027] The electrical device according to the embodiment of the present invention has at least the following beneficial effects: By adopting the motor according to the embodiment of the second aspect of the present invention, the radiator can be made of a metal material with a higher heat dissipation effect, while the box body can be made of a plastic material with a lower cost and a simple manufacturing process. Thereby, the cost can be reduced and the manufacturing process can be simplified.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following further describes the present invention in conjunction with the drawings and embodiments, wherein:

[0030] Figure 1 is a schematic structural diagram of the motor provided in the embodiment of the present application;

[0031] Figure 2 is Figure 1Exploded view of the motor in the middle;

[0032] Figure 3 Structural schematic diagram of the motor controller provided by the embodiment of the present application;

[0033] Figure 4 For Figure 3 Exploded view of the motor controller in the middle;

[0034] Figure 5 For Figure 3 Schematic diagram of an angle of the box body in the middle;

[0035] Figure 6 For Figure 3 Schematic diagram of another angle of the box body in the middle;

[0036] Figure 7 Schematic diagram of the side of the box body in an embodiment of the present application;

[0037] Figure 8 Installation schematic diagram of the box body and the radiator in another embodiment of the present application;

[0038] Figure 9 For Figure 8 Another angle schematic diagram;

[0039] Figure 10 For Figure 8 Exploded view;

[0040] Figure 11 Installation schematic diagram of the box body and the radiator in still another embodiment of the present application;

[0041] Figure 12 For Figure 11 Another angle schematic diagram;

[0042] Figure 13 For Figure 11 Exploded view;

[0043] Figure 14 For Figure 2 Structural schematic diagram of the motor body in the middle;

[0044] Figure 15 For Figure 14 Structural schematic diagram of the rear end cover in the middle;

[0045] Figure 16 Structural schematic diagram of the electrical equipment provided by the embodiment of the present application.

[0046] Among them, each reference numeral in the figure:

[0047] 100 - Motor; 200 - Cylinder; 10 - Motor controller; 20 - Motor body; 30 - Screw; 11 - Box body; 12 - Control board; 13 - Radiator; 110 - Installation cavity; 111 - Connection end; 112 - Control end; 113 - Bottom plate; 114 - Side plate; 115 - First mounting foot; 116 - First through slot; 117 - Reinforcing rib; 118 - First mounting plate; 119 - Glue cavity; 120 - Placing boss; 121 - Electric control component; 122 - Screw hole; 131 - First heat sink; 132 - Heat dissipation plate; 133 - Second heat sink; 1130 - Installation window; 1131 - First screw post; 1132 - First locking hole; 1180 - First mounting hole; X - First direction; Y - Second direction. Detailed implementation mode

[0048] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0049] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0050] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0051] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0052] Please refer to Figure 1 and Figure 2 , and now the motor controller 10 provided by the embodiment of the present application will be described. The motor controller 10 is used in the motor 100 to realize the circuit control of the motor body 20 in the motor 100.

[0053] Please refer to Figure 2and Figure 3 , the motor controller 10 includes a box body 11 and a control board 12. The box body 11 has a connecting end 111 and a control end 112 which are spaced apart in the first direction X. The connecting end 111 is used to form a connection with the motor body 20. The control board 12 is installed at the control end 112. The control board 12 is used to form an electrical connection with the motor body 20 to control the operation of the motor body 20. An electrical control component 121 is provided on the control board 12, and the electrical control component 121 is spaced apart from the connecting end 111.

[0054] It should be noted here that the motor body 20 is the main part that realizes the motor driving function in the motor 100. The motor controller 10 is used to control the operation of the motor body 20. The sum of the motor body 20 and the motor controller 10 is the motor 100. In addition, the control board 12 is the main circuit board of the motor controller 10, and the electrical control component 121 is the electrical control component provided on the control board 12. Each electrical control component 121 and the control board 12 together form the total control circuit of the motor controller 10 for realizing control.

[0055] In the embodiment of the present application, the box body 11 includes a connecting end 111 and a control end 112 which are spaced apart in the first direction X. The connecting end 111 is connected to the motor body 20, and the control board 12 is installed at the control end 112. An electrical control component 121 is provided on the control board 12. Thus, after installation, the control end 112 is spaced apart from the motor body 20, that is, the electrical control component 121 on the control board 12 is spaced apart from the motor body 20. The heat generated during the operation of the motor body 20 will not be directly conducted to the electrical control component 121, preventing the heat generated by the motor body 20 from affecting the electrical control component 121, ensuring that the electrical control component 121 works in a stable temperature environment, and improving the service life of the electrical control component 121 and the entire motor controller 10.

[0056] Please refer to Figure 4 , the box body 11 includes a bottom plate 113 and side plates 114. The side plates 114 extend from the periphery of the bottom plate 113 along the first direction X. The bottom plate 113 and the side plates 114 enclose an installation cavity 110. The control end 112 is provided on the bottom plate 113. The control board 12 is provided in the installation cavity 110 and is arranged close to the bottom plate 113. The side plates 114 are used to connect with the motor body 20. The installation of the control board 12 is realized jointly by the bottom plate 113 and the side plates 114, and the opening of the box body 11 faces the connecting end 111, that is, the opening of the box body 11 faces the side of the motor body 20. Thus, it is convenient to form an electrical connection between the control board 12 and the motor body 20, and the box body 11 plays a role in protecting the control board 12, preventing the operator from accidentally touching the control board 12, the electrical control component 121, and the connecting wires between the control board 12 and the motor body 20.

[0057] In one embodiment, please refer toFigure 4 , the control board 12 is installed on the bottom plate 113. Specifically, the bottom plate 113 is distributed with first screw posts 1131 arranged at intervals, and screw holes 122 are provided at corresponding positions on the control board 12. The control board 12 can be fixed to the bottom plate 113 by bolts passing through the screw holes 122 and the first screw posts 1131 in sequence. It can be understood that in other embodiments of the present application, the above control board 12 can also be installed on the side plate 114, such as being buckled on the side plate 114 by a snap, or the control board 12 can be fixed by the side plate 114 and the bottom plate 113 at the same time, and there is no unique limitation here.

[0058] In one embodiment, please refer to Figure 5 and Figure 6 , three first mounting feet 115 are provided on the periphery of the side plate 114. The first mounting feet 115 are distributed at intervals on the periphery of the side plate 114. The first mounting feet 115 extend along the first direction X from the periphery of the side plate and are used to connect with the motor body 20. The connection end 111 is the end of the first mounting foot 115 far from the side plate 114. The side plate 114 is indirectly connected to the motor body 20 by connecting the three first mounting feet 115 respectively, and the first mounting feet 115 can ensure that the side plate 114 and the motor body 20 are arranged at intervals, so that the control board 12 and the motor body 20 can be separated. It can be understood that in other embodiments of the present application, according to the actual size of the side plate 114, two, four or more than four first mounting feet 115 can also be distributed on the side plate 114, and there is no unique limitation here.

[0059] In the above embodiment, the bottom plate 113 is in the shape of a circular plate, the side plate 114 is in the shape of a cylinder, and the first mounting feet 115 are circumferentially and equally spaced along the periphery of the side plate 114. In some other embodiments of the present application, the bottom plate 113 can also be in the shape of a polygon, the cross-section of the side plate 114 is also in the shape of a polygon, and a plurality of first mounting feet 115 are provided on the periphery of the side plate 114. The first mounting feet 115 are equally spaced along the periphery of the side plate 114.

[0060] Please refer to Figure 5 , the length of the first mounting foot 115 along the first direction X is greater than the length of the side plate 114 along the first direction X. In this way, it can better ensure that the distance between the control board 12 and the electronic control components 121 thereon and the motor body 20 is large enough, and improve the heat dissipation effect of the control board 12 and the electronic control components 121.

[0061] Please refer to Figure 6, a first through groove 116 is formed between two adjacent first mounting feet 115, and the mounting cavity 110 communicates with each first through groove 116. In this way, the heat generated by the control board 12 and each electronic control component 121 on the control board 12 can flow through the mounting cavity 110 and out into the external air from each first through groove 116, and part of the heat generated by the motor body 20 can also flow out into the external air from the first through groove 116, which further improves the heat dissipation effect of the electronic control component 121.

[0062] In the above embodiment, please refer to Figure 5 , the inner side wall of the first mounting foot 115 is flush with the inner side wall of the side plate 114, and the outer side wall of the first mounting foot 115 is flush with the outer side wall of the side plate 114. That is, the first mounting foot 115 directly extends straight along the side plate 114, reducing the processing difficulty of the entire box body 11.

[0063] Please refer to Figure 6 , a reinforcing rib 117 protrudes from the outer side wall of the first mounting foot 115. Through the arrangement of the reinforcing rib 117, the support strength of the first mounting foot 115 can be enhanced, so that a firm connection can be formed between the side plate 114 and the motor body 20. Specifically, the length extension direction of the reinforcing rib 117 is the same as the extension direction of the first mounting foot 115. In this way, the support strength of the first mounting foot 115 in the length direction can be increased.

[0064] Please refer to Figure 5 , one end of the first mounting foot 115 away from the side plate 114 extends to form a first mounting plate 118. The first mounting plate 118 is provided with a first mounting hole 1180. The first mounting plate 118 is used to abut against the motor body 20, and the first mounting hole 1180 is used to lock the screw 30 to lock the first mounting foot 115 and the motor body 20. Of course, in other embodiments of the present application, the first mounting plate 118 can also be connected to the motor body 20 by welding, riveting and buckling methods, and this is not limited to a single way here.

[0065] Please refer to Figure 7 , one ends of the first mounting plates 118 away from the side plate 114 are all flush with each other. In this way, it can be ensured that the first mounting plates 118 are locked with the motor body 20 flat and firmly, and it can be ensured that after being installed with the motor body 20, the entire box body 11 is in a flush state.

[0066] In one embodiment, the first mounting feet 115, the side plates 114, the bottom plates 113 and the first mounting plates 118 are integrally connected structures. In this way, the overall box body 11 can be integrally formed, with simple manufacturing processes and simple assembly, reducing the manufacturing cost. It can be understood that in other embodiments of the present application, the above first mounting feet 115, side plates 114 and bottom plates 113 can also be formed separately and then connected by welding, screw locking and other methods, and this is not limited to a single way here.

[0067] In another embodiment of the present application, the connection end 111 is one end of the side plate 114 away from the bottom plate 113. The side plate 114 is used for direct connection with the motor body 20. In this way, the strength of the entire box body 11 can be ensured, and the structure of the box body 11 is simple and convenient to manufacture. At the same time, a plurality of second through grooves (not shown in the figure) communicating with the installation cavity 110 are formed on the side plate 114. The second through grooves are used to communicate the installation cavity 110 with the external air, so as to facilitate the heat dissipation of the control board 12 and the electric control components 121 thereon.

[0068] In another embodiment of the present application, a second mounting plate (not shown in the figure) extends from the periphery of the side plate 114. Second mounting holes are provided on the second mounting plate. During installation, the second mounting plate is abutted against the motor body 20, and then the side plate 114 and the motor body 20 are locked by screwing the screws through the second mounting holes.

[0069] Please refer to Figure 3 , in one embodiment, the outer sidewall of the control board 12 abuts against the inner sidewall of the side plate 114. In this way, the control board 12 and the side plate 114 can enclose a glue cavity 119 with an opening facing the connection end 111. After the control board 12 and the electric control components 121 are both installed, glue can be poured into the glue cavity 119 to protect the electric control components 121. Of course, since some capacitor components are relatively tall, the glue pouring can only cover the electric control components 121 with relatively short height. For the electric control components 121 with relatively tall height, only part of the height can be covered. However, as long as the pads on the control board 12 are fully covered, the protection effect can be achieved.

[0070] Please refer to Figure 3 , the motor controller 10 further includes a radiator 13. The radiator 13 is arranged at the control end 112 and is used for the heat dissipation of the electric control components 121. By arranging the radiator 13 at the control end 112, the radiator 13 is also arranged at an interval from the motor body 20, and the heat of the motor body 20 will not affect the heat dissipation effect of the radiator 13. Furthermore, arranging the radiator 13 on the box body 11 can avoid arranging the radiator 13 on the motor body 20, so that the structure of the motor body 20 is simple and light. And when the user does not need the motor, the motor body 20 can also be directly used without increasing the cost of the motor body 20.

[0071] In one embodiment, a main chip (not shown in the figure) is provided on the control board 12. The main chip is disposed on one side of the control board 12 away from the connection end 111. The radiator 13 is directly or indirectly in contact with the main chip through the box body 11. In this way, the main heat-generating component (main chip) on the control board 12 can be separated from the motor body 20 by a relatively long distance, preventing the heat generated by the motor body 20 from affecting the main chip. At the same time, the radiator 13 is in contact with the main chip to directly conduct the heat generated by the main chip, thereby improving the service life of the main chip.

[0072] In one embodiment, the radiator 13 and the box body 11 are of an integral structure. In this way, the radiator 13 and the box body 11 can be integrally formed by metal, with a simple structure and simple forming.

[0073] The radiator 13 and the box body 11 are preferably made of aluminum. In this way, the heat dissipation effect of the box body 11 and the radiator 13 reaches the best state. It can be understood that in other embodiments of the present application, the upper radiator 13 and the box body 11 can also be made of other metal materials, such as iron, steel, etc., which are not uniquely limited here.

[0074] Specifically, the main chip is in contact with the inner side of the box body 11, specifically, it can be in contact with the inner side of the bottom plate 113. The radiator 13 includes a plurality of first heat dissipation fins 131 protruding from the outer side of the box body 11. Each first heat dissipation fin 131 and the box body 11 are integral parts made of metal material. Specifically, the first heat dissipation fin 131 is integrally formed with the bottom plate 113, that is, each first heat dissipation fin 131 and the box body 11 are made together by metal material. Its structure is simple, and the main chip is in contact with the inner side of the box body 11. The heat generated by the main chip and each electronic control component 121 is conducted to the box body 11, and then dissipated into the air through the first heat dissipation fins 131 on the box body 11, improving the heat dissipation effect of the electronic control component 121.

[0075] Please refer to Figure 5 , a first locking hole 1131 is provided on the box body 11. The main chip is locked to the box body 11 through the first locking hole 1131. In this way, it can be ensured that the main chip is closely attached to the box body 11, and the heat generated by the main chip can be quickly conducted to the box body 11 and dissipated into the air through the first heat dissipation fins 131.

[0076] Please refer to Figure 7 , in one embodiment, a placement boss 120 also protrudes from the outer side of the box body 11. Specifically, the placement boss 120 is disposed on the outer side of the bottom plate 113. The placement boss 120 and the first heat dissipation fins 131 are spaced apart, and the side of the placement boss 120 away from the box body 11 is flush with the first heat dissipation fins 131. In this way, during the installation operation, each first heat dissipation fin 131 and the placement boss 120 can be placed on the same flush working surface, and then the processing and installation operations can be carried out.

[0077] In another embodiment, please refer to Figures 8 - 13 , the radiator 13 and the box body 11 are of a separable structure. Thus, the radiator 13 can be made of a metal material with higher heat dissipation effect, while the box body 11 can be made of a plastic material with lower cost and simple manufacturing process.

[0078] In another embodiment, please refer to Figures 8 to 10 , the radiator 13 is formed of a metal material, and the box body 11 is formed of BMC (Bulk Molding Compound) material or plastic material; the radiator 12 is embedded in the box body 11 and is formed with the box body by secondary injection molding. Thus, not only can the heat dissipation effect of the radiator 13 be ensured, but also the box body 11 is an insulating material, so the electrical clearance and creepage distance do not need to be considered, and at the same time, the outer shape of the box body 11 can be further made smaller.

[0079] In another embodiment, please refer to Figures 11 to 13 , the radiator 13 is made of aluminum alloy material, the box body 11 is formed by stretching BMC material, and the radiator 13 is fixed on the box body 11 through fasteners, with simple structure and simple installation.

[0080] Please refer to Figure 10 and Figure 13 , an installation window 1130 is provided on the box body 11. The radiator 13 includes a heat dissipation plate 132 and a plurality of second heat dissipation fins 133. Each second heat dissipation fin 133 is distributed on the heat dissipation plate 132. The heat dissipation plate 132 is installed at the installation window 1130, and the second heat dissipation fins 133 protrude outside the box body 11. By setting the radiator 13 and the box body 11 separately.

[0081] Please refer to Figure 1 and Figure 2 , the present application further provides a motor 100, including a motor body 20 and the above-mentioned motor controller 10. The connection end 111 is connected to the motor body 20, and the control end 112 is arranged at an interval from the motor body 20. With the setting of the above-mentioned motor controller 10 in the motor 100 of the present application, the overall heat dissipation effect of the motor 100 is good and the service life is long.

[0082] Please refer to Figure 2 , the motor body 20 includes a stator 22, a front end cover 23 and a rear end cover 21. The front end cover 23 and the rear end cover 21 are respectively arranged at both ends of the stator 22, and the rear end cover 21 is used to form a connection with the connection end 11. Specifically, a plurality of second screw posts 211 are provided on the rear end cover 21, and the connection end 11 and each second screw post 211 are locked by screws 30.

[0083] Please refer to Figure 14 and Figure 15, the rear end cover 21 is provided with two second mounting feet 212 for mounting on an electrical device. The motor controller 10 further includes a radiator 13. The radiator 13 and the second mounting feet 212 are spaced apart along the second direction Y, and the second direction Y is perpendicular to the first direction X. Thus, after installation, the radiator 13 is disposed away from the electrical device, which is beneficial to improving the heat dissipation effect of the radiator 13. In addition, please refer to Figure 1 , after installation, the end of the second mounting foot 212 protrudes from the end of the radiator 13 along the first direction X, that is, the radiator 13 does not protrude from the end of the second mounting foot 212. Thus, the setting of the radiator 13 does not affect the transportation of the motor controller 10.

[0084] Please refer to Figure 16 , the embodiment of the present application further provides an electrical device, including a cylinder body 200 and the above-mentioned motor 100. Through the setting of the above-mentioned motor 100 in the electrical device of the present application, the service life of the electrical device is improved.

[0085] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. Motor controller, characterized in that, It includes a box body, a radiator and a control board. The box body includes a control end and a connection end. The connection end is used to connect with the motor body. The control board is installed on the control end. The control board is used to form an electrical connection with the motor body to control the operation of the motor body. There are electrical control components on the control board. The radiator is arranged on the control end and used for dissipating heat of the electrical control components. The radiator and the box body are of a separable structure; The box body includes a bottom plate and side plates. The side plates extend along a first direction from the periphery of the bottom plate. The bottom plate and the side plates enclose an installation cavity. The control end is located on the bottom plate. The control board is arranged in the installation cavity and close to the bottom plate; There are a plurality of first mounting feet on the periphery of the side plates. The first mounting feet extend along the first direction from the periphery of the side plates and are used to connect with the motor body. The connection end is located at one end of the first mounting feet away from the side plates. A first through groove is formed between two adjacent first mounting feet. The installation cavity communicates with each first through groove.

2. The motor controller according to claim 1, wherein The control board is installed on the bottom plate and / or the side plates.

3. The motor controller according to claim 1 or 2, characterized in that, The outer side wall of the control board abuts against the inner side wall of the side plate. A glue cavity for pouring glue is formed by enclosing the control board and the side plate.

4. The motor controller according to claim 1, characterized in that, There is a main chip on the control board. The main chip is arranged on one side of the control board far away from the connection end. The radiator directly or through the box body abuts against the main chip.

5. The motor controller according to claim 1, wherein, The radiator is formed of a metal material. The box body is formed of a BMC material or a plastic material; The radiator is embedded in the box body.

6. The motor controller according to claim 1, wherein The radiator is made of an aluminum alloy material. The box body is formed by stretching a BMC material. The radiator is fixed to the box body by fasteners.

7. The motor controller according to claim 1, wherein An installation window is opened on the box body. The radiator includes a heat dissipation plate and second heat dissipation fins distributed on the heat dissipation plate. The heat dissipation plate is installed at the installation window. The second heat dissipation fins protrude outside the box body.

8. An electric motor, comprising a motor body, characterized in that, The motor further includes a motor controller according to any one of claims 1 to 7. The connection end is connected with the motor body.

9. The motor according to claim 8, characterized in that, The motor body includes a rear end cover. There are a plurality of second screw posts on the rear end cover. The connection end and each second screw post are connected by fasteners.

10. The motor according to claim 9, characterized in that, The rear end cover is provided with two second mounting feet for mounting on an electrical device. The radiator and the second mounting feet are arranged at intervals along a second direction. And the end of the second mounting feet protrudes from the end of the radiator along the first direction. The second direction is perpendicular to the first direction.

11. An electrical device, including a cylinder, characterized in that, It further includes a motor according to any one of claims 8-10. The motor is installed on the cylinder body.

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