CN212935718U - Control assembly, motor, water pump and vehicle - Google Patents

Abstract

The utility model provides a control assembly, a motor, a water pump and a vehicle, wherein the control assembly comprises a control base, a supporting table and a controller, wherein the supporting table is connected on the control base; the controller is connected with the supporting table, and a gap is formed between the controller and the control base. The utility model discloses an order to have the interval between controller and the control base, make the built on stilts setting of controller on the control base, controller and control base mutual insulation this moment, and then can reduce controller short circuit risk, avoid the control assembly inefficacy.

Description

Control assembly, motor, water pump and vehicle

Technical Field

The utility model relates to an electronic equipment technical field particularly, relates to a control assembly, a motor, a water pump and a vehicle.

Background

At present, electronic equipment has a controller base and a controller arranged on the controller base, however, the controller is often short-circuited due to the unreasonable structural design of the controller base, and thus the product is failed.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, a first aspect of the present invention is to provide a control assembly.

A second aspect of the present invention is to provide an electric machine.

The third aspect of the present invention is to provide a water pump.

A fourth aspect of the present invention is to provide a vehicle.

In view of the above, according to a first aspect of the present invention, there is provided a control assembly comprising a control base, a support table and a controller, wherein the support table is connected to the control base; the controller is connected with the supporting table, and a gap is formed between the controller and the control base.

The utility model provides a control assembly for the motor, control assembly include control base, brace table and controller, and brace table fixed connection is on control base. Particularly, the supporting table and the control base are of an integrated structure, and the difficulty in manufacturing products can be reduced on the basis of ensuring reliable connection between the supporting table and the control base. Further, the support table and the control base may be cast. Further, the number of the supporting platforms is at least two, when the number of the supporting platforms is three, the three supporting platforms are distributed on the control base at intervals, a connecting line between the three supporting platforms and connecting points of the control base can form a triangle, and the controller can be stably connected to the supporting platforms at the moment. The utility model discloses an order to have the interval between controller and the control base, make the built on stilts setting of controller on the control base, controller and control base mutual insulation this moment, and then can reduce controller short circuit risk, avoid the control assembly inefficacy.

Further, the controller is a printed circuit board. The printed circuit board has the advantages of high density, high reliability, designability, producibility and testability, can realize high-integration-level circuit arrangement and reliably work for a long time, can be designed according to the control requirement of a motor, can be subjected to standardization, large-scale and automatic production, can ensure quality consistency, has a relatively complete test method and a relatively complete test standard, can be assembled with various other elements to form larger parts, systems and the like, can be rapidly, conveniently and flexibly replaced once the printed circuit board breaks down, and can rapidly recover the system work.

It is worth mentioning that the support table is connected between the control base and the controller, and the height of the support table is equal to the height of the gap.

Further, the controller is spaced from the control base by a distance of 0.5mm or more, that is, by an electrical clearance and/or a creepage distance of the motor using the control assembly. Wherein the electrical gap may be obtained with reference to the following steps: determining the peak value and the effective value of the working voltage, determining the power supply voltage and the power supply setting category of the motor, determining the magnitude of transient overvoltage entering the motor according to the overvoltage category, determining the pollution level of equipment, and determining the insulation type (functional insulation, basic insulation, additional insulation and reinforced insulation) of the electric gap crossing. The creepage distance may be obtained with reference to the following steps: determining an effective value or a direct current value of the working voltage; determining material classes, determining contamination levels, determining insulation types, etc.

In one possible design, the control assembly further includes an insulator disposed between the controller and the control base.

In this design, be provided with the insulating part between controller and the control base, the insulating part can further ensure the insulating connection between controller and the control base, reduces controller short circuit risk, avoids the control assembly inefficacy. Further, an insulating member is interposed between the controller and the control base. The thickness of the insulating member, the thickness of the support table and the height of the space are equal. The insulating part plays the effect of making controller and control base mutual insulation this moment, makes the thickness of insulating part be less than or equal to 1mm, and the manufacturing process of restricting to can make the thickness of insulating part the smaller better, as long as can play insulating effect can, also can reduction in production cost simultaneously.

In one possible design, further, the insulating member is a heat conductive silica gel; the heat conduction silica gel is clamped between the controller and the control base.

In the design, the insulating part is heat-conducting silica gel which has excellent cold and hot alternation resistance, aging resistance and electric insulation performance, excellent moisture resistance, shock resistance, corona resistance, electric leakage resistance and chemical interception resistance, can be continuously used within the temperature range of-60-280 degrees and keeps excellent performance, and in addition, the heat-conducting silica gel also has good cohesiveness to most of metal and non-metal materials, can realize reliable connection performance and avoid risks such as circuit short circuit. The coating of heat conduction silica gel has the advantage that the setting is simple and the cohesiveness is reliable between controller and control base, and heat conduction silica gel can absorb and discharge the heat that produces on the controller, further prevents controller malfunction and trouble. The heat conduction silica gel not only can realize reducing the risk of controller and control base short circuit promptly, can also dispel the heat to the controller, improves control assembly's heat dispersion, improves the installation reliability of controller.

In a possible design, the control assembly further includes a threaded hole formed in the support platform, and a mounting hole provided in the controller corresponding to the threaded hole, and the fastener is engaged with the threaded hole and the mounting hole to fixedly connect the controller to the control base.

In the design, a threaded hole is formed in the supporting table, an assembly hole corresponding to the threaded hole is formed in the controller, and the fastener can be reliably connected between the controller and the control base through the assembly hole and the threaded hole. The fastener is the screw, and controller and control base are locked to the screw, and when the controller needs the maintenance, controller and the control base of screw connection also are convenient for dismantle. Furthermore, the threaded holes and the supporting platforms are in one-to-one correspondence, and the supporting platforms are arranged at intervals, so that the controller can be fastened and connected in an all-around mode.

In one possible embodiment, the control assembly further comprises a terminal opening, which is arranged on the control base and is used to receive a terminal of the electric machine.

In this design, the terminal hole sets up on the control base, and the binding post of motor can pass the terminal hole and be connected in order to be connected with the controller electricity, and then can be convenient for accurate positioning between binding post and the controller and be connected, also can reduce the operation difficulty degree of the two electric connection. In one possible design, further, the control base includes a first seat body protruding toward the first direction to configure the mounting surface, the support table being disposed on the mounting surface; the projected area of the controller on the installation surface is larger than the area of the installation surface.

In this design, the control base includes a first seat body that protrudes toward the first direction, and the first seat body constitutes the mounting surface after protruding. When the control base has a flat plate structure, the first direction is a thickness direction of the control base. The support platform is arranged on the mounting surface, namely the support platform is arranged on the first seat body. The projection area of the controller on the mounting surface is larger than that of the mounting surface, when the controller is connected to the first seat body through the support table, the projection of one part of the controller on the plane where the mounting surface is located falls in the mounting surface, the projection of the other part of the controller falls in a non-mounting surface area, and at the moment, the part of the controller can be electrically connected with other parts (wiring terminals, connectors and the like) of the motor, so that the other parts can be electrically connected without extending into the interval between the mounting surface and the controller, the electrical connection difficulty of the controller and other parts is reduced, and in addition, the problem that the electric connection cannot be achieved when an insulating piece is clamped between the mounting surface and the controller can be effectively avoided. Further, the first seat body is T-shaped.

In a possible design, the control assembly further comprises a second seat body and an avoiding groove, the second seat body is connected with the first seat body, part of the second seat body protrudes towards a second direction which is opposite to the first direction to form a mounting groove, and a capacitor is arranged in the mounting groove; the avoiding groove is arranged on the first seat body corresponding to the pin of the controller, and part of the capacitor penetrates through the avoiding groove to be electrically connected with the pin.

In this design, the control assembly further includes a second seat body connected to the first seat body and forming a control base. Furthermore, the second seat body is U-shaped, and the first seat body and the second seat body are matched to form an elliptical control base. It is worth explaining that, the second direction is the direction that deviates from with the first direction mutually, and first seat body is protruding towards the first direction, and part second seat body is protruding in order to constitute the mounting groove towards the second direction, and the mounting groove is used for holding control assembly's electric capacity, and the first seat body of assembly controller and the part second seat body of assembly electric capacity are protruding towards different directions can further improve the overall arrangement rationality in the control assembly for different parts are arranged on the control base breakfastly. Further, the control assembly further comprises a fixing piece which is arranged in the installation groove and connected with the capacitor. Specifically, the fixing piece is an adhesive, and the capacitor is adhered in the mounting groove. Specifically, the fixing member may be disposed in the mounting groove through a coating process, increasing the coupling strength of the fixing member and the mounting groove. The quantity of mounting groove is one or more, and when the quantity of mounting groove was a plurality of, a plurality of mounting grooves set up on the second seat body around first seat body, and then the electric capacity and the controller electricity in the mounting groove of being convenient for are connected. Specifically, the quantity of mounting groove and the quantity of electric capacity are two of one-to-one, and two mounting groove symmetries set up the both sides at first seat body.

Further, the control assembly further comprises an avoiding groove, the avoiding groove is formed in the first seat body, pins of the controller are located in the avoiding groove, the number of the avoiding grooves is multiple, the avoiding grooves and the pins of the controller are in one-to-one correspondence, and one avoiding groove contains one controller pin. The capacitor is provided with a positive pole and a negative pole, and the positive pole and the negative pole of the capacitor respectively penetrate through the corresponding avoidance grooves to be electrically connected with the corresponding pins.

In a possible design, the terminal hole is provided on the first socket body avoiding the avoiding groove, and the terminal hole is provided at the edge of the first socket body, so that a sufficient position can be reserved for the central area of the first socket body to facilitate the centralized arrangement of other electronic components on the controller. The terminal hole is used for accommodating a wiring terminal of the motor, and the wiring terminal penetrates through the terminal hole to be electrically connected to the controller. Further, the terminal hole, the avoiding groove and the mounting groove are adjacently arranged on the control base. The number of the terminal holes can be one or a plurality of, and is determined according to the type of the motor suitable for the control assembly, when the motor is a single-phase motor, the number of the terminal holes is one, and at the moment, the number of the terminal holes on the control base is also one. When the motor is a three-phase motor, the number of the wiring terminals is three, the number of the terminal holes in the control base is also three, the three terminal holes are distributed on the control base at intervals, and the specific positions of the terminal holes can be adjusted according to the positions of the wiring terminals.

In one possible embodiment, the mounting groove is arranged adjacent to the escape groove.

In the design, the installation groove and the avoidance groove are arranged adjacently, so that the anode and the cathode of the capacitor can be conveniently connected with pins of the controller, on one hand, meaningless lead loss is effectively avoided, and on the other hand, potential safety hazards caused by overlong leads and scattered distribution can be avoided. In addition, the assembly positioning process is simplified, and the corresponding connecting positions can be quickly and accurately found.

In one possible design, the number of mounting grooves is further half of the number of escape grooves.

In this design, when the electric capacity is one, then the mounting groove is one, and this moment, the quantity of dodging the groove is two, and two dodge the groove and be used for holding electric capacity's positive pole and negative pole respectively. Furthermore, the two avoidance grooves are positioned on the same side of the mounting groove, so that the arrangement of the control base is more reasonable while the electric connection between the capacitor and the controller is facilitated.

Further, the lead wire connected on the positive pole, the negative pole of electric capacity inserts the controller from the back of controller (promptly the lead wire inserts the controller along the second direction), and the mounting groove need not the intercommunication with dodging the groove this moment and can realize electric connection of electric capacity and controller, and of course, the mounting groove also can communicate with dodging the groove this moment, can reduce the casting degree of difficulty of control base.

Furthermore, the lead connected to the positive pole and the negative pole of the capacitor is inserted into the controller from the front side of the controller (namely, the lead is inserted into the controller along the first direction), and at the moment, the mounting groove is communicated with the avoiding groove so that the lead can pass through, and then the electric connection between the capacitor and the controller can be realized.

In a possible design, further, the control assembly further comprises a mounting opening and a connector, and the mounting opening is arranged on the second seat body in a way of avoiding the mounting groove; the connector is assembled in the mounting opening and electrically connected with the controller.

In this design, the second seat body includes two parts, the first part is a part protruding toward the second direction including constituting the mounting groove, the second part is a part not protruding, and the mounting opening is provided on the second part of the second seat body. It is worth mentioning that, in the axial direction of the motor, the first part of the second seat body, the second part of the second seat body and the first seat body are arranged from bottom to top in sequence, that is, the control base has three layers, so that the layout rationality in the control assembly can be improved, and different components are arranged on the control base in a staggered manner. A partial connector is mounted in the mounting opening and can be electrically connected with the controller, and specifically, the partial connector refers to a pin of the connector. It is worth mentioning that, because the area of the controller on the installation surface is larger than that of the installation surface, the projection of part of the controller on the plane where the installation opening is located is at least partially overlapped with the installation opening, so that the position where the connector is connected with the controller is reserved, and part of the connector can be connected to the controller after penetrating through the installation opening.

In a possible design, further, the number of the terminal holes is multiple, and the multiple terminal holes and the mounting openings are distributed around the control base at intervals.

In the design, a plurality of terminal holes and mounting ports are distributed at intervals around the control base, and on the basis of ensuring that the terminal holes correspond to the positions of the wiring terminals and the positions of the mounting ports and the connectors, enough positions can be reserved in the central area of the control base so as to facilitate the centralized arrangement of other electronic elements on the controller.

In a possible design, further, the control assembly further includes a seat edge connected to the outer edge of the control base and bent or curved toward the first direction, and the terminal hole is provided on a portion of the outer edge of the first seat body near the seat edge.

In the design, the outer edge of the control base is connected with a seat edge, the seat edge bends or bends towards the first direction, the seat edge and the control base form an assembly space, and the assembly space can contain components such as a controller and a capacitor. Further, the terminal holes are arranged on the outer edge of the part, close to the seat edge, of the first seat body, and enough positions can be reserved for the central area of the first seat body so as to facilitate the centralized arrangement of other electronic components on the controller.

In a possible design, further, the control assembly further includes a limiting portion, the limiting portion is disposed on the seat edge, and the limiting portion is used for being connected with a rear cover of the motor in a matching manner.

In this design, the back lid of motor can be connected on the control base to avoid outside dust to get into inside the motor. The seat edge is also provided with a limiting part, and the limiting part can be matched with the rear cover to realize reliable connection of the seat edge and the rear cover. Specifically, spacing portion is the buckle, and the back is covered and is equipped with the knot position, and the buckle can realize the fastening connection of control base and back lid with detaining the position cooperation.

In a possible design, further, the control assembly further includes an outer extension portion, the outer extension portion is connected to the control base and protrudes along a radial extension of the control base, the outer extension portion is used for being connected with a casing of the motor, the number of the outer extension portions is multiple, and the multiple outer extension portions are rotationally symmetric and uniformly arranged around a central axis of the motor.

In this design, be equipped with the extension on the control base, the radial extension and the protrusion of extension along the control base, and then can be convenient for be connected between the casing of control base and motor. Specifically, the extension is connected to the seat rim. In addition, the quantity of extension portion is a plurality of, and a plurality of extension portions are around the central axis rotational symmetry of motor and evenly arrange on control base, in the assembling process, can rotate control base wantonly as required to can adjust control base for the position of motor, make the connector on the control base can the different direction of orientation, thereby make the water pump that has this motor can be applicable to different installation spaces, in order to have more extensive applicable scene.

Furthermore, the extension portion is provided with a connecting hole, the shell of the motor is provided with an assembling hole corresponding to the connecting hole, and the fastener can be matched with the connecting hole and the assembling hole to realize the fastening connection of the control base and the shell of the motor. Specifically, the number of the extension portions is 3, 6, or 9, and thus the housing and the control base can be assembled at different rotation angles. When the number of the extension portions is 3, the control base can be rotated by 120 ° with respect to the housing to achieve the adjustment of the position of the connector.

According to a second aspect of the present invention, there is provided an electric machine comprising a housing and a control assembly provided in any one of the above possible designs, the control assembly being fixedly connected to one end of the housing; one side of the rear cover facing the control component is provided with a connecting part, and the connecting part is matched and connected with the limiting part of the control component.

The utility model provides a motor, the control assembly who provides in the above-mentioned arbitrary possible design, consequently have this control assembly's whole beneficial effect, no longer describe herein.

Further, the motor still includes the back lid, and back lid is equipped with connecting portion towards one side of control assembly, and connecting portion are connected with spacing cooperation in order to realize that the back lid links to each other with reliable of control base. Specifically, connecting portion are detained the position, and spacing portion is the buckle, detains the position and cooperatees with the buckle, and the assembly is simple and the reliability is higher.

In a possible design, further, the rear cover further includes a positioning portion, the avoiding connection portion is provided on the rear cover, and the positioning portion is in contact with the control base.

In this design, the back is covered and is dodged connecting portion and still is equipped with location portion, location portion and control base contact in order to realize the prepositioning of back lid and control base, connecting portion and spacing portion realize the lock effect, realize the positioning action through location portion, realize the lock effect through connecting portion, avoid integrating positioning action and lock effect in a structure and lead to lock effect and positioning action mutual interference's phenomenon, reduce the risk that the leakproofness became invalid between back lid and the control base.

In one possible design, the electric machine further includes a stator assembly and a rotor assembly, the stator assembly and the rotor assembly being disposed within the housing. The stator assembly comprises a stator and a bus bar, the bus bar comprises a wiring terminal, and the wiring terminal penetrates through a terminal hole to be electrically connected with the controller.

In this design, the stator assembly includes a stator and a bus bar, the stator assembly being located within the housing and mated with the housing shrink sleeve. It can be understood that the thermal sleeve fit is a method for achieving the purpose of interference fit by using the principle of expansion with heat and contraction with cold. However, in the installation process before the shrink fit, the stator and the bus bar can rotate along with the controller of the control assembly as required, and then the shrink fit treatment is carried out after the stator and the bus bar rotate to the required position, so that the stator and the shell are in interference fit and cannot rotate, and the structure is more stable. Furthermore, the number of the wiring terminals and the number of the terminal holes are a plurality in one-to-one correspondence.

According to the utility model discloses a third aspect provides a water pump, including the motor that any possible design of the aforesaid provided to and hydraulic component, hydraulic component includes the pump case, the other end fixed connection of the casing of pump case and motor.

The utility model provides a water pump, the motor that provides in the above-mentioned arbitrary possible design, consequently have the whole beneficial effect of this motor, no longer describe herein. The water pump also comprises a hydraulic assembly, wherein the pump shell of the hydraulic assembly is connected to the other end of the shell of the motor, and the two ends of the motor are respectively connected with the hydraulic assembly and the control assembly.

According to a fourth aspect of the present invention, there is provided a vehicle, comprising: the automobile body and the water pump that the above-mentioned design provided, the water pump is installed in the automobile body.

The utility model discloses a vehicle, water pump in the above-mentioned design consequently has all beneficial effects of this water pump, no longer gives unnecessary details here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic partial structural view of a control assembly according to an embodiment of the present invention;

fig. 2 illustrates a partial structural elevation view of a control assembly in accordance with an embodiment of the present invention;

fig. 3 illustrates a side view of a portion of the structure of a control assembly in accordance with an embodiment of the present invention;

fig. 4 shows a partial enlarged view of the control assembly shown in fig. 3 at a in an embodiment in accordance with the invention;

fig. 5 shows a schematic structural diagram of a control assembly in an embodiment in accordance with the invention;

fig. 6 shows a schematic structural diagram of a control base in a control assembly according to another embodiment of the present invention;

fig. 7 shows a schematic structural view of a water pump according to an embodiment of the present invention;

fig. 8 shows a further schematic structural view of the water pump according to an embodiment of the invention;

fig. 9 shows a schematic view of a part of the structure of the motor according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

1 a control component for controlling the operation of the device,

10 control base, 101 first base body, 102 second base body, 103 mounting surface, 104 avoiding groove, 105 terminal hole, 106 mounting groove, 107 mounting opening, 108 base edge, 109 limiting part, 110 extending part,

12 the screw holes of the support table, 121,

13 connectors for the electrical connection of the electrical connectors,

14 a controller for controlling the operation of the device,

2 motor, 21 casing, 22 back cover, 22a connecting part, 23 stator component, 24 rotor component, 25 connecting terminal,

3 water pump, 30 pump case.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A control assembly 1, a motor 2, a water pump 3 and a vehicle provided according to some embodiments of the present invention are described below with reference to fig. 1 to 9.

Example one

According to a first aspect of the present invention, as shown in fig. 1, fig. 2 and fig. 5, the present embodiment provides a control assembly 1, comprising a control base 10, a support table 12 and a controller 14, wherein the support table 12 is connected to the control base 10; the controller 14 is connected to the support base 12, and the controller 14 is spaced apart from the control base 10.

The utility model provides a control assembly 1 for motor 2, control assembly 1 include control base 10, brace table 12 and controller 14, brace table 12 fixed connection is on control base 10. Specifically, the support table 12 and the control base 10 are of an integral structure, which can reduce the difficulty of product manufacture while ensuring reliable connection between the support table 12 and the control base 10. Further, the support table 12 and the control base 10 may be cast. Further, the number of the support tables 12 is at least two, and when the number of the support tables 12 is three, the three support tables 12 are distributed on the control base 10 at intervals, and a connection line between connection points of the three support tables 12 and the control base 10 can form a triangle, so that the controller 14 can be stably connected to the support tables 12. The utility model discloses an order to have the interval between controller 14 and the control base 10, make controller 14 overhead setting on control base 10, controller 14 and control base 10 mutual insulation this moment, and then can reduce controller 14 short circuit risk, avoid control assembly 1 to become invalid.

Here, it should be noted that the controller 14 may be a printed circuit board. The printed circuit board has the advantages of high density, high reliability, designability, producibility and testability, can realize high-integration-level circuit arrangement and reliably work for a long time, can be designed according to the control requirement of the motor 2, can be subjected to standardization, large-scale and automatic production, and can ensure quality consistency, has a relatively complete test method and a relatively complete test standard, and can be used for identifying the qualification and the service life of the printed circuit board before the controller 14 is assembled to the control base 10.

It should be noted that, as shown in fig. 3 and 4, the support table 12 is connected between the control base 10 and the controller 14, and the height D of the support table 12 is equal to the spacing height.

Further, the controller 14 is spaced from the control base 10 by a distance equal to or greater than 0.5mm, that is, by an electrical clearance and/or a creepage distance of the motor 2 using the control assembly 1. Wherein the electrical gap may be obtained with reference to the following steps: determining operating voltage peaks and effective values, determining supply voltage and supply setting classes of the motor 2, determining the magnitude of transient overvoltages entering the motor 2 according to the overvoltage classes, determining the pollution level of the equipment, determining the type of insulation (functional insulation, basic insulation, additional insulation, reinforced insulation) of the electrical gap cross-over. The creepage distance may be obtained with reference to the following steps: determining an effective value or a direct current value of the working voltage; determining material classes, determining contamination levels, determining insulation types, etc.

Example two

In this embodiment, the control assembly 1 further comprises an insulator disposed between the controller 14 and the control base 10.

In this embodiment, an insulating member is disposed between the controller 14 and the control base 10, and the insulating member can further ensure the insulating connection between the controller 14 and the control base 10, reduce the risk of short circuit of the controller 14, and avoid failure of the control assembly 1. Further, an insulating member is interposed between the controller 14 and the control base 10. The thickness of the insulating member, the thickness of the support base 12 and the height of the space are equal. At this time, the insulating member plays a role of insulating the controller 14 and the control base 10 from each other, and the thickness of the insulating member is made to be less than or equal to 1mm, so that the manufacturing process is limited to make the thickness of the insulating member as small as possible, so long as the insulating function can be achieved, and meanwhile, the production cost can be reduced.

Further, the insulating part is heat-conducting silica gel; the thermally conductive silicone gel is sandwiched between the controller 14 and the control base 10.

In the embodiment, the insulating member is heat-conducting silica gel which has excellent cold and hot alternation resistance, aging resistance and electrical insulation performance, excellent moisture resistance, shock resistance, corona resistance, electric leakage resistance and chemical interception resistance, can be continuously used within a temperature range of-60-280 degrees and keeps excellent performance, and in addition, the heat-conducting silica gel has good cohesiveness to most of metal and non-metal materials, can realize reliable connection performance and avoids risks such as circuit short circuit. The heat-conducting silica gel is coated between the controller 14 and the control base 10, so that the device has the advantages of simple arrangement and reliable cohesiveness, and can absorb and discharge heat generated on the controller 14, thereby further preventing misoperation and fault of the controller 14. Namely, the heat-conducting silica gel not only can reduce the risk of short circuit between the controller 14 and the control base 10, but also can dissipate heat of the controller 14, thereby improving the heat dissipation performance of the control assembly 1 and improving the installation reliability of the controller 14.

EXAMPLE III

Unlike the two embodiments, as shown in fig. 1 and 2, the present embodiment defines the specific structure of the control base 10, and the control assembly 1 further includes a threaded hole 121 formed on the support 12, and a mounting hole provided on the controller 14 corresponding to the threaded hole 121, and a fastening member is engaged with the threaded hole 121 and the mounting hole to fixedly connect the controller 14 to the control base 10.

In this embodiment, the support platform 12 is provided with a threaded hole 121, the controller 14 is provided with a mounting hole corresponding to the threaded hole 121, and the fastener can realize reliable connection between the controller 14 and the control base 10 through the mounting hole and the threaded hole 121. The fasteners are screws, the screws lock the controller 14 and the control base 10, and when the controller 14 needs maintenance, the controller 14 and the control base 10 connected by the screws are also convenient to detach. Further, the threaded holes 121 and the supporting bases 12 are provided in a one-to-one correspondence, and the supporting bases 12 are arranged at intervals, so that the controller 14 can be fastened and connected in all directions.

Further, as shown in fig. 1 and 2, the control base 10 includes a first base body 101, the first base body 101 is protruded toward a first direction to configure a mounting surface 103, and the support table 12 is disposed on the mounting surface 103; the projected area of the controller 14 on the mounting surface 103 is larger than the area of the mounting surface 103.

In this embodiment, the control base 10 includes a first socket body 101 protruding toward the first direction, and the first socket body 101 constitutes the mounting surface 103 after protruding. When the control base 10 has a flat plate structure, the first direction is the thickness direction of the control base 10. The support base 12 is provided on the mounting surface 103, that is, the support base 12 is provided on the first socket body 101. The projection area of the controller 14 on the mounting surface 103 is larger than the area of the mounting surface 103, so that when the controller 14 is connected to the first seat body 101 through the support table 12, the projection of one part of the controller 14 on the plane of the mounting surface 103 falls within the mounting surface 103, and the projection of the other part of the controller 14 falls within the non-mounting surface 103, at this time, the part of the controller 14 can be electrically connected with other components (the wiring terminal 25, the connector 13 and the like) of the motor 2, so that the other components can be electrically connected without extending into the interval between the mounting surface 103 and the controller 14, the difficulty in electrical connection between the controller 14 and other components is reduced, and the problem that the electrical connection cannot be performed when an insulating piece is clamped between the mounting surface 103 and the controller 14 can be effectively avoided. Further, the first seat body 101 is T-shaped.

Further, as shown in fig. 1 and fig. 2, the control assembly 1 further includes a second seat body 102 and an avoiding groove 104, the second seat body 102 is connected to the first seat body 101, a portion of the second seat body 102 protrudes toward a second direction opposite to the first direction to form a mounting groove 106, and a capacitor is disposed in the mounting groove 106; the avoiding groove 104 is opened on the first seat body 101 corresponding to the pin of the controller 14, and a part of the capacitor passes through the avoiding groove 104 to be electrically connected with the pin.

In this embodiment, the control unit 1 further comprises a second seat body 102, the second seat body 102 being connected to the first seat body 101 and constituting the control base 10. Further, the second seat body 102 is U-shaped, and the first seat body 101 and the second seat body 102 cooperate to form the elliptical control base 10. It should be noted that the second direction is a direction away from the first direction, the first seat body 101 protrudes toward the first direction, part of the second seat body 102 protrudes toward the second direction to form a mounting groove 106, the mounting groove 106 is used for accommodating the capacitor of the control assembly 1, and the first seat body 101 for mounting the controller 14 and part of the second seat body 102 for mounting the capacitor protrude toward different directions, so as to further improve the layout rationality in the control assembly 1, and thus different components are arranged on the control base 10 in a staggered manner. Further, the control assembly 1 further includes a fixing member disposed in the mounting groove 106 to connect the capacitor. Specifically, the fixing member is an adhesive, and the capacitor is adhered in the mounting groove 106. The number of the mounting grooves 106 is one or more, and when the number of the mounting grooves 106 is plural, the plural mounting grooves 106 are disposed on the second seat body 102 around the first seat body 101, thereby facilitating the electrical connection of the capacitor in the mounting grooves 106 with the controller 14. Specifically, the number of the mounting grooves 106 and the number of the capacitors are two in one-to-one correspondence, and the two mounting grooves 106 are symmetrically disposed on two sides of the first seat body 101.

Further, as shown in fig. 1 and fig. 2, the control assembly 1 further includes avoidance grooves 104, the avoidance grooves 104 are disposed on the first seat body 101, pins of the controller 14 are located in the avoidance grooves 104, the number of the avoidance grooves 104 is plural, the avoidance grooves 104 correspond to the pins of the controller 14 one by one, that is, one avoidance groove 104 contains one pin of the controller 14. The capacitor has a positive electrode and a negative electrode, and the positive electrode and the negative electrode of the capacitor respectively penetrate through the respective avoidance grooves 104 to be electrically connected with the corresponding pins.

Further, as shown in fig. 1 and 2, the mounting groove 106 is disposed adjacent to the avoidance groove 104.

In this embodiment, the mounting groove 106 and the avoiding groove 104 are arranged adjacently, so that the connection between the anode and the cathode of the capacitor and the pins of the controller 14 is facilitated, on one hand, unnecessary lead loss is effectively avoided, and on the other hand, potential safety hazards caused by overlong leads and scattered distribution can be avoided. In addition, the assembly positioning process is simplified, and the corresponding connecting positions can be quickly and accurately found.

Further, as shown in fig. 1 and 2, the number of the mounting grooves 106 is half of the number of the escape grooves 104.

In this embodiment, when there is one capacitor, the number of the mounting groove 106 is one, and at this time, the number of the avoiding grooves 104 is two, and the two avoiding grooves 104 are respectively used for accommodating the positive electrode and the negative electrode of the capacitor. Further, the two avoidance slots 104 are located on the same side of the mounting slot 106, which facilitates electrical connection of the capacitor to the controller 14 while also rationalizing the placement of the control base 10.

Further, the lead connected to the positive electrode and the negative electrode of the capacitor is inserted into the controller 14 from the back of the controller 14 (i.e., the lead is inserted into the controller 14 along the second direction), at this time, the installation groove 106 and the avoiding groove 104 do not need to be communicated to electrically connect the capacitor and the controller 14, and of course, the installation groove 106 and the avoiding groove 104 can be communicated at this time, so that the casting difficulty of the control base 10 can be reduced.

Further, the lead wires connected to the positive electrode and the negative electrode of the capacitor are inserted into the controller 14 from the front surface of the controller 14 (i.e., the lead wires are inserted into the controller 14 along the first direction), and at this time, the mounting groove 106 is communicated with the avoiding groove 104 to allow the lead wires to pass through, so that the capacitor can be electrically connected with the controller 14.

Further, as shown in fig. 1 to 3, the control module 1 further includes a mounting opening 107 and a connector 13, the mounting opening 107 is disposed on the second seat body 102 avoiding the mounting groove 106; the connector 13 is fitted in the mounting opening 107 and electrically connected to the controller 14.

In this embodiment, the second housing body 102 includes two parts, the first part is a part protruding toward the second direction including a part constituting the mounting groove 106, the second part is a part not protruding, and the mounting opening 107 is provided on the second part of the second housing body 102. It is worth mentioning that, in the axial direction of the motor 2, the first portion of the second seat body 102, the second portion of the second seat body 102 and the first seat body 101 are arranged in sequence from bottom to top, that is, by having the control base 10 with three levels, the layout rationality in the control assembly 1 can be improved, so that different components are arranged on the control base 10 in a staggered manner. The partial connector 13 is fitted in the mounting opening 107 and can be electrically connected to the controller 14, and specifically, the partial connector 13 refers to a pin of the connector 13. It should be noted that, because the area of the controller 14 on the mounting surface 103 is larger than the area of the mounting surface 103, the projection of a part of the controller 14 on the plane where the mounting opening 107 is located at least partially overlaps with the mounting opening 107, so that a position where the connector 13 is connected with the controller 14 is reserved, and the connector 13 can be connected to the controller 14 after passing through the mounting opening 107.

Further, as shown in fig. 1 and 2, the control assembly 1 further includes a terminal hole 105, the terminal hole 105 being provided on the control base 10, the terminal hole 105 being for receiving the connection terminal 25 of the motor 2.

In this embodiment, the terminal hole 105 is disposed on the control base 10, and the connection terminal 25 of the motor 2 can pass through the terminal hole 105 to be electrically connected with the controller 14, so as to facilitate accurate positioning connection between the connection terminal 25 and the controller 14, and reduce operation difficulty of electrical connection between the two.

Further, the terminal hole 105 is provided on the first socket body 101 avoiding the avoidance groove 104, and the terminal hole 105 is provided at the edge of the first socket body 101, so that a sufficient position can be reserved for the central area of the first socket body 101 to facilitate the concentrated arrangement of other electronic components on the controller 14. The terminal hole 105 is used for accommodating a terminal 25 of the motor 2, and the terminal 25 is electrically connected to the controller 14 through the terminal hole 105. Further, the terminal hole 105, the escape groove 104, and the mounting groove 106 are adjacently provided on the control base 10. The number of the terminal holes 105 may be one or more, and is determined according to the type of the motor 2 to which the control assembly 1 is applied, and when the motor 2 is a single-phase motor 2, the number of the terminal terminals 25 is one, and at this time, the number of the terminal holes 105 on the control base 10 is also one. When the motor 2 is a three-phase motor 2, the number of the connecting terminals 25 is three, the number of the terminal holes 105 on the control base 10 is also three, the three terminal holes 105 are distributed on the control base 10 at intervals, and the specific positions of the terminal holes 105 can be adjusted according to the positions of the connecting terminals 25.

Further, the number of the terminal holes 105 is plural, and the plural terminal holes 105 and the mounting holes 107 are distributed at intervals around the control base 10.

In this embodiment, the plurality of terminal holes 105 and the mounting openings 107 are spaced around the control base 10, and on the basis of ensuring that the terminal holes 105 correspond to the positions of the connection terminals 25 and the positions of the mounting openings 107 and the connectors 13, enough positions can be reserved in the central area of the control base 10 to facilitate the centralized arrangement of other electronic components on the controller 14.

Example four

In the present embodiment, as shown in fig. 1 to fig. 3, a specific structure of the control base 10 is defined to further facilitate the matching connection between the control base 10 and another component (the rear cover 22) on the motor 2, specifically, in the present embodiment, a seat edge 108 is provided on an outer edge of the control base 10, the seat edge 108 is bent or curved toward the first direction, and the terminal hole 105 is provided on a portion of the outer edge of the first seat body 101, which is close to the seat edge 108.

In this embodiment, a seat rim 108 is connected to the outer edge of the control base 10, the seat rim 108 is bent or curved toward the first direction, and the seat rim 108 and the control base 10 form an assembly space, which can accommodate components such as the controller 14 and the capacitor. Further, the terminal hole 105 is provided on a portion of the outer edge of the first socket body 101 near the socket edge 108, and a sufficient position may be reserved for the central area of the first socket body 101 to facilitate the centralized arrangement of other electronic components on the controller 14.

Further, the control assembly 1 further includes a limiting portion 109, the limiting portion 109 is disposed on the seat edge 108, and the limiting portion 109 is configured to be connected with the rear cover 22 of the motor 2 in a matching manner.

In this embodiment, the rear cover 22 of the motor 2 can be attached to the control base 10 so as to prevent external dust from entering the inside of the motor 2. The seat rim 108 further has a limiting portion 109, and the limiting portion 109 can cooperate with the rear cover 22 to achieve a reliable connection therebetween. Specifically, the limiting portion 109 is a buckle, a buckling position is arranged on the rear cover 22, and the buckle and the buckling position are matched to realize the fastening connection between the control base 10 and the rear cover 22.

EXAMPLE five

The control assembly 1 further includes an outer extension portion 110, as shown in fig. 1, 2 and 6, the outer extension portion 110 is connected to the control base 10 and extends and protrudes along a radial direction of the control base 10, the outer extension portion 110 is used for being connected with the casing 21 of the motor 2, the number of the outer extension portions 110 is plural, and the plurality of the outer extension portions 110 are rotationally symmetric and uniformly arranged around a central axis of the motor 2.

In this embodiment, the control base 10 is provided with an extension portion 110, and the extension portion 110 extends and protrudes in the radial direction of the control base 10, so that the connection between the control base 10 and the housing 21 of the motor 2 can be facilitated. Specifically, the extension 110 is attached to the seat rim 108. In addition, the number of the extending portions 110 is multiple, the extending portions 110 are rotationally symmetric around the central axis of the motor 2 and are uniformly arranged on the control base 10, in the assembling process, the control base 10 can be rotated randomly as required, so that the position of the control base 10 relative to the motor 2 can be adjusted, the connectors 13 on the control base 10 can face different directions, and the water pump 3 with the motor 2 can be suitable for different installation spaces and has wider application scenes.

Further, a connecting hole is formed in the extending portion 110, an assembling hole is formed in the housing 21 of the motor 2 corresponding to the connecting hole, and a fastening member can be matched with the connecting hole and the assembling hole to realize fastening connection between the control base and the housing 21 of the motor 2. Specifically, the number of the extension portions 110 is 3, 6, or 9, and thus the housing 21 and the control base 10 can be assembled at different rotation angles. When the number of the extension portions 110 is 3, the control base 10 can be rotated by 120 ° with respect to the housing 21 to adjust the position of the connector 13.

EXAMPLE six

According to a second aspect of the present invention, there is provided a motor 2, comprising a casing 21 and the control assembly 1 provided in any of the above embodiments, wherein the control assembly 1 is fixedly connected to one end of the casing 21; one side of the rear cover 22 facing the control component 1 is provided with a connecting portion 22a, and the connecting portion 22a is connected with the limiting portion 109 of the control component 1 in a matching manner.

The utility model provides a motor 2, including the control assembly 1 that provides in any of the above-mentioned embodiments, consequently have all beneficial effects of this control assembly 1, no longer describe herein.

Further, as shown in fig. 9, the motor 2 further includes a rear cover 22, a connecting portion 22a is disposed on one side of the rear cover 22 facing the control component 1, and the connecting portion 22a is connected with the limiting portion 109 in a matching manner to reliably connect the rear cover 22 and the control base 10. Specifically, the connecting portion 22a may be a buckle position, the limiting portion 109 is a buckle, the buckle position is matched with the buckle, and the assembling is simple and the reliability is high.

Further, the rear cover 22 further includes a positioning portion, the escape connecting portion 22a is provided on the rear cover 22, and the positioning portion is in contact with the control base 10.

In this embodiment, the avoiding connection portion 22a on the rear cover 22 is further provided with a positioning portion, the positioning portion contacts with the control base 10 to realize the pre-positioning of the rear cover 22 and the control base 10, the connection portion 22a and the limiting portion 109 realize the buckling effect, the positioning effect is realized through the positioning portion, the buckling effect is realized through the connection portion 22a, the phenomenon that the positioning effect and the buckling effect are integrated in one structure to cause mutual interference of the buckling effect and the positioning effect is avoided, and the risk of sealing failure between the rear cover 22 and the control base 10 is reduced.

Further, the rear cover 22 includes a cover body and a cover edge, the cover edge is connected to the cover body and extends towards the first direction, the cover edge and the cover body enclose to form an accommodating cavity for assembling other parts, the positioning portion and the connecting portion 22a are both located on the cover edge, and therefore the connecting portion 22a is convenient to be matched with the limiting portion 109 located on the seat edge 108 of the control base 10.

Further, the number of the positioning portions and the connecting portions 22a is plural, each of the positioning portions is located between two adjacent connecting portions 22a of the connecting portions 22a, specifically, the positioning portions and the connecting portions 22a are arranged on the cover edge at intervals, so that on one hand, positioning accuracy can be achieved, on the other hand, the rear cover 22 can be reliably connected with the control base 10 in all directions, and sealing performance is further ensured.

Further, a plurality of connecting portions 22a are symmetrically provided on the cover rim along the center of the cover body.

Further, at least part of the outer edge of the cover body extends in a direction away from the center of the cover body to form a limiting step, and the seat edge 108 of the control base 10 can be connected to the limiting step, so that the control base 10 can be limited in the axial direction. It should be noted that at least part of the cover body may be at least part of the cover body in the axial direction, that is, the thickness of the limiting step in the axial direction is less than or equal to the thickness of the cover body in the central region, and/or at least part of the cover body may be at least part of the cover body in the circumferential direction, that is, when the limiting step extends from the center to the outer edge of the cover body in the circumferential direction, the limiting step is one, and when the cross section of the cover body is elliptical, the limiting step is in an elliptical ring shape; when the cross section of the cover body is circular, the limiting step is annular; and when spacing step is that the outer edge part of circumference upper cover body deviates from the center and extends, at this moment, spacing step's quantity is a plurality of, and a plurality of spacing step interval arrangement also can realize the limiting displacement to control base 10.

Further, a part of the cover edge is recessed toward the cavity to form a slot, the slot is a connection portion 22a, a part of the seat edge 108 is protruded toward the cavity to form a protrusion, the protrusion is a limiting portion 109, and the protrusion is embedded in the slot to limit the axial movement of the rear cover 22 along the motor 2.

Further, the width of the clamping groove in the axial direction is larger than or equal to the width of the lug in the axial direction.

Furthermore, the clamping groove comprises a first groove wall and a second groove wall along the axial direction, and the first groove wall is positioned between the limiting step and the second groove wall; the lug includes along axial first lateral wall and second lateral wall, and first lateral wall is laminated mutually with first cell wall, has the interval between second lateral wall and the second cell wall.

Further, the rear cover 22 also includes a guide surface disposed at the free end of the cover edge, along which the projection moves into the slot.

Furthermore, the clamping groove comprises a plurality of groove walls, and a rounded corner is arranged between the groove wall close to the guide surface and the guide surface in the plurality of groove walls.

Furthermore, part of the cover edge is sunken towards the cavity to form a sealing groove which is not communicated with the clamping groove; a seal is disposed within the seal groove and is compressed by the seat rim 108.

Further, the sealing groove is formed around the rear cover 22 on the cover rim.

Further, the seal groove is located between the limiting step and the clamping groove.

Further, a part of the cover extends in the first direction to form a rib, the rib is a positioning portion, and the rib is in contact with the control base 10.

Further, the outer sidewall of the rib fits the inner sidewall of the rim 108.

Further, the motor 2 further includes a stator assembly 23 and a rotor assembly 24, and the stator assembly 23 and the rotor assembly 24 are disposed in the housing 21. The stator assembly 23 includes a stator and a bus bar including a terminal 25, the terminal 25 electrically connected to the controller 14 through a terminal hole 105.

In this embodiment, the stator assembly 23 includes a stator and a bus bar, the stator assembly 23 being located within the housing and mated with the housing thermal sleeve. It can be understood that the thermal sleeve fit is a method for achieving the purpose of interference fit by using the principle of expansion with heat and contraction with cold. However, during the installation process before shrink fitting, the stator and the bus bar can rotate along with the controller 14 of the control assembly 1 as required, and then shrink fitting is performed after the stator and the bus bar rotate to a required position, so that the stator and the housing 21 are in interference fit and cannot rotate, and the structure is more stable.

EXAMPLE seven

According to a third aspect of the present invention, as shown in fig. 7 and 8, the present embodiment provides a water pump 3, including the motor 2 provided in any one of the above embodiments, and a hydraulic assembly, wherein the hydraulic assembly includes a pump housing 30, and the pump housing 30 is fixedly connected to the other end of the housing 21 of the motor 2.

The utility model provides a water pump 3, including the motor 2 that provides in any of the above-mentioned embodiments, consequently have all beneficial effects of this motor 2, no longer describe herein. The water pump 3 further comprises a hydraulic assembly, a pump shell 30 of the hydraulic assembly is connected to the other end of the casing 21 of the motor 2, wherein the two ends of the motor 2 are respectively connected with the hydraulic assembly and the control assembly 1.

Example eight

According to a fourth aspect of the present invention, there is provided a vehicle, comprising: the vehicle body and the water pump 3 provided by the design, wherein the water pump 3 is arranged in the vehicle body.

The utility model discloses a vehicle, water pump 3 including above-mentioned embodiment consequently has all beneficial effects of this water pump 3, no longer gives unnecessary details here.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (20)

1. A control assembly for an electric machine, comprising:

a control base;

a support table disposed on the control base;

the controller is connected with the supporting table, and a gap is reserved between the controller and the control base.

2. The control assembly of claim 1, further comprising:

an insulator disposed between the controller and the control base.

3. The control assembly of claim 2,

the insulating part is heat-conducting silica gel;

the heat conduction silica gel clamp is established the controller with between the control base.

4. The control assembly of claim 1, further comprising:

the threaded hole is formed in the support platform;

a fitting hole provided on the controller corresponding to the screw hole;

the fastener with the screw hole with the pilot hole mutually supports in order to realize the controller with the fixed connection of control base.

5. The control assembly of any one of claims 1 to 4, further comprising:

and the terminal hole is arranged on the control base and used for accommodating a wiring terminal of the motor.

6. The control assembly of claim 5,

the control base comprises a first base body, the first base body protrudes towards a first direction to construct a mounting surface, and the support table is arranged on the mounting surface;

the projection area of the controller on the installation surface is larger than the area of the installation surface.

7. The control assembly of claim 6, further comprising:

the second seat body is connected with the first seat body, part of the second seat body protrudes towards a second direction which is deviated from the first direction to construct a mounting groove, and a capacitor is arranged in the mounting groove;

and the avoiding groove is arranged on the first seat body corresponding to the pin of the controller, and part of the capacitor penetrates through the avoiding groove to be electrically connected with the pin.

8. The control assembly of claim 7,

the mounting groove and the avoiding groove are arranged adjacently.

9. The control assembly of claim 7,

the quantity of mounting groove is in dodge half of the quantity of groove.

10. The control assembly of claim 7,

the mounting groove is communicated with the avoiding groove.

11. The control assembly of any one of claims 7 to 10, further comprising:

the mounting opening is arranged on the second seat body in a manner of avoiding the mounting groove;

a connector, a portion of which is fitted in the mounting opening and electrically connected to the controller.

12. The control assembly of claim 11,

the number of the terminal holes is multiple, and the terminal holes and the mounting holes are distributed on the periphery of the control base at intervals.

13. The control assembly of claim 12, further comprising:

the seat is along, connect on the outer edge of control base and towards first direction bending or bending, the terminal hole sets up on the first seat body is close to on the partial outer edge of seat edge.

14. The control assembly of claim 13, further comprising:

the limiting part is arranged on the seat edge and is used for being connected with the rear cover of the motor in a matched mode.

15. The control assembly of any one of claims 1 to 4, further comprising:

the extension part is arranged on the control base and protrudes along the radial direction of the control base, and the extension part is used for being connected with a shell of the motor;

the quantity of the extension portion is a plurality of, and is a plurality of the extension portion winds the central axis rotational symmetry of motor and evenly arranged.

16. An electric machine, comprising:

a housing;

the control assembly of any one of claims 1 to 15, fixedly connected to one end of the housing;

the rear cover faces one side of the control assembly and is provided with a connecting portion, and the connecting portion is connected with the limiting portion of the control assembly in a matched mode.

17. The electric machine of claim 16, wherein the back cover further comprises:

and the positioning part avoids the connecting part and is arranged on the rear cover, and the positioning part is contacted with the control base of the control assembly.

18. The electric machine of claim 16, further comprising:

the stator assembly and the rotor assembly are arranged in the machine shell;

the stator assembly comprises a stator and a bus bar, the bus bar comprises a wiring terminal, and the wiring terminal penetrates through a terminal hole of the control assembly to be electrically connected with a controller of the control assembly;

the number of the wiring terminals is equal to the number of the terminal holes.

19. A water pump, comprising:

an electric machine as claimed in any one of claims 16 to 18; and

the hydraulic assembly comprises a pump shell, and the pump shell is fixedly connected with the other end of the shell of the motor.

20. A vehicle, characterized by comprising:

a vehicle body; and

the water pump of claim 19, mounted in the vehicle body.

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