Motor and water pump comprising same

Abstract

The utility model discloses a motor and a water pump comprising the motor. The motor comprises a stator shell, a first conductive terminal, a stator assembly and a rotor assembly. The stator housing includes a base portion, a side wall portion, a connector structure and a guide structure. The side wall part and the base part jointly form a containing groove. The first conductive terminal is arranged on the stator shell and comprises a first end part and a second end part, the first end part is arranged in the accommodating groove and is provided with a first insertion port, and the second end part is arranged in the connector structure; the guide structure is provided with a second insertion port and an end face, and the end face is arranged around the second insertion port and abuts against the first end portion of the first conductive terminal. The first insertion opening is partially or integrally shrunk inwards relative to the second insertion opening. The stator assembly is arranged in the containing groove of the stator shell and comprises a coil and a second conductive terminal. The second conductive terminal is connected with the coil and is inserted into the first insertion port and the second insertion port.

Description

Technical Field

[0001] The present disclosure relates to an electric motor and a water pump including the electric motor. Background Art

[0002] An electric motor is a common electromechanical device, and its applications include electric vehicles, fans, water pumps, etc. Due to the popularity of electric motors, the industry has invested a lot of resources in the design and improvement of electric motors, hoping to simplify the production process of electric motors and reduce production costs. Summary of the Utility Model

[0003] In view of this, an object of the present disclosure is to provide an electric motor with a simple structure and low production cost, and to provide a water pump including the electric motor.

[0004] To achieve the above object, according to some embodiments of the present disclosure, an electric motor includes a stator housing, a first conductive terminal, a stator assembly, and a rotor assembly. The stator housing includes a base portion, a side wall portion, and a connector structure. The connector structure is provided on the base portion. The side wall portion is connected to the base portion and together with the base portion forms a receiving groove. The first conductive terminal is provided on the stator housing and includes opposite first and second ends. The second end is located in the connector structure. The first end is located in the receiving groove and has a first insertion opening. The stator housing further includes a guiding structure, the guiding structure is arranged facing the first end of the first conductive terminal and has a second insertion opening. The minimum width of the first insertion opening is smaller than the width of the second insertion opening, and the maximum width of the first end of the first conductive terminal is larger than the width of the second insertion opening. The stator assembly is arranged in the receiving groove of the stator housing and includes a coil and a second conductive terminal. The second conductive terminal is connected to the coil and is inserted into the first insertion opening and the second insertion opening. The rotor assembly is arranged facing the stator assembly.

[0005] According to some embodiments of the present disclosure, an electric motor includes a stator housing, a first conductive terminal, a stator assembly, and a rotor assembly. The stator housing includes a base portion, a side wall portion, and a connector structure. The connector structure is provided on the base portion. The side wall portion is connected to the base portion and together with the base portion forms a receiving groove. The first conductive terminal is provided on the stator housing and includes opposite first and second ends. The second end is located in the connector structure. The first end is located in the receiving groove and has a first insertion opening. The stator housing further includes a guiding structure, the guiding structure is arranged facing the first end of the first conductive terminal and has a second insertion opening and an end face. The end face is arranged around the second insertion opening and abuts against the first end of the first conductive terminal. The first insertion opening is partially or entirely recessed relative to the second insertion opening. The stator assembly is arranged in the receiving groove of the stator housing and includes a coil and a second conductive terminal. The second conductive terminal is connected to the coil and is inserted into the first insertion opening and the second insertion opening. The rotor assembly is arranged facing the stator assembly.

[0006] In one or more embodiments of the present disclosure, the vertical projection of the inner wall of the second insertion opening on the base surrounds the vertical projection of the inner wall of the first insertion opening on the base.

[0007] In one or more embodiments of the present disclosure, the first end of the first conductive terminal includes a bent portion, and the bent portion is bent to form a notch as the first insertion opening.

[0008] In one or more embodiments of the present disclosure, the bent portion has an outer wall surface facing away from the second conductive terminal, and the outer wall surface is wider than the second insertion opening.

[0009] In one or more embodiments of the present disclosure, the inner wall of the second insertion opening has an inclined surface such that one end of the second insertion opening facing the first conductive terminal is retracted relative to the end of the second insertion opening away from the first conductive terminal.

[0010] In one or more embodiments of the present disclosure, the guiding structure further has a side opening that exposes a side of the first end of the first conductive terminal away from the side wall portion.

[0011] In one or more embodiments of the present disclosure, the stator assembly further includes a bobbin, a coil, and the second conductive terminal are disposed on the bobbin. One of the bobbin and the stator housing includes a rib structure, and the other of the bobbin and the stator housing includes a groove for receiving the rib structure. The groove and the rib structure extend along a first direction perpendicular to the base of the stator housing.

[0012] In one or more embodiments of the present disclosure, the bobbin includes a first engaging structure, and the stator housing further includes a second engaging structure disposed on the inner wall of the side wall portion and engaged with the first engaging structure.

[0013] In one or more embodiments of the present disclosure, one of the first engaging structure and the second engaging structure includes a protrusion, and the other of the first engaging structure and the second engaging structure includes a clamping structure for clamping the protrusion.

[0014] In one or more embodiments of the present disclosure, one of the first engaging structure and the second engaging structure includes a tenon, and the other of the first engaging structure and the second engaging structure includes a snap structure for snapping onto the tenon.

[0015] In one or more embodiments of the present disclosure, the stator housing further includes a stop structure disposed on the inner wall of the side wall portion and configured to limit the movement of the stator assembly in the first direction. The motor further includes a second housing that covers the receiving groove of the stator housing and is configured to limit the movement of the stator assembly in a second direction opposite to the first direction.

[0016] In one or more embodiments of the present disclosure, the first conductive terminal is embedded in the stator housing.

[0017] According to some embodiments of the present disclosure, a water pump includes a flow channel structure, an impeller, and the aforementioned motor. The impeller is connected to the rotor assembly of the motor and is disposed in the flow channel structure.

[0018] In summary, the stator housing of the motor of the present disclosure is provided with a first conductive terminal, and the end of the first conductive terminal has a first insertion port. The stator assembly of the motor includes a second conductive terminal for connecting to the first conductive terminal. The stator assembly can be connected to the stator housing by an assembly method, and the second conductive terminal is guided by the guiding structure of the stator housing to be inserted into the first insertion port of the first conductive terminal to complete the connection between the stator assembly and the stator housing. Compared with the conventional method of relying on welding or a circuit board to connect the stator assembly and the stator housing, the motor of the present disclosure is easier to manufacture and assemble, and the production cost of the motor can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To make the above and other objects, features, advantages, and embodiments of the present disclosure more apparent and understandable, the descriptions of the accompanying drawings are as follows:

[0020] Figure 1 To show a perspective view of a water pump according to an embodiment of the present disclosure.

[0021] Figure 2 To show Figure 1 A top view of some components (excluding the rotor assembly) of the motor of the water pump shown.

[0022] Figure 3 To show Figure 2 A sectional view of the motor shown at the position marked by the line segment 3-3'.

[0023] Figure 4 To show Figure 2 A sectional view of the motor shown at the position marked by the line segment 4-4'.

[0024] Figure 5 To show Figures 1 to 3 A perspective view of the first conductive terminal shown.

[0025] Figure 6 To show Figure 1 A sectional view of the water pump shown at the position marked by the line segment 6-6'.

[0026] Figure 7 To show Figure 2 and Figure 3 A perspective view of the stator housing of the motor shown.

[0027] Figure 8 To showFigure 1 The cross-sectional view of the water pump shown, where the cross-section passes through Figure 7 the bump shown.

[0028] The reference numerals are as follows:

[0029] 11: Water pump

[0030] 12: Electric motor

[0031] 13: Second housing

[0032] 14: Rubber strip

[0033] 15: Flow channel structure

[0034] 17: Shaft member

[0035] 19: Impeller

[0036] 20: Stator assembly

[0037] 21: Bobbin

[0038] 22: Coil

[0039] 23: Iron core

[0040] 24: Cladding member

[0041] 25, 26: Second conductive terminal

[0042] 27: Clamping structure

[0043] 28: Buckle structure

[0044] 29: First engaging structure

[0045] 30: Stator housing

[0046] 31: Base

[0047] 32: Side wall portion

[0048] 33: Receiving groove

[0049] 34: Connector structure

[0050] 35: Guiding structure

[0051] 36: Second insertion opening

[0052] 37: End face

[0053] 38: Inclined surface

[0054] 39: Side opening

[0055] 41: Stopping structure

[0056] 42: Ribbed structure

[0057] 43: Groove

[0058] 47: Bump

[0059] 48: Tenon

[0060] 49: Second engaging structure

[0061] 50: First conductive terminal

[0062] 51: First end

[0063] 52: Second end

[0064] 53: First insertion port

[0065] 54: Intermediate section

[0066] 55: Bending portion

[0067] 56: Outer wall surface

[0068] 60: Rotor assembly

[0069] 65: Magnet

[0070] D1: First direction

[0071] D2: Second direction

[0072] W1, W2, W3: Width Detailed implementation manners

[0073] To make the description of the present disclosure more detailed and complete, reference may be made to the accompanying drawings and the following various implementation manners. The elements in the drawings are not drawn to scale and are provided only for illustrating the present disclosure. The following describes many practical details to provide a comprehensive understanding of the present disclosure. However, those of ordinary skill in the relevant art should understand that the present disclosure can be implemented without one or more of the practical details. Therefore, the multiple details should not be used to limit the present disclosure.

[0074] Please refer to Figure 1 . Figure 1 FIG. is a perspective view showing a water pump 11 according to an implementation manner of the present disclosure. The water pump 11 includes a motor 12, a flow channel structure 15, and an impeller (for example, Figure 6 the impeller 19 shown). The flow channel structure 15 is disposed on one side of the motor 12 and is configured to receive and output liquid. The impeller is connected to the motor 12 and is disposed in the flow channel structure 15. The impeller is driven by the motor 12 to rotate in the flow channel structure 15, thereby pressurizing and outputting the liquid. For example, the water pump 11 can be used in a cooling system of a vehicle to drive cooling liquid to flow through a heat source in the vehicle (for example, the battery of an electric vehicle) to facilitate controlling the temperature of the heat source.

[0075] Please refer to Figure 2 and Figure 3 . Figure 2 To show the top view of some components (excluding the rotor assembly) of the motor 12 of the water pump 11 shown in Figure 1 , and Figure 3 To show the cross-sectional view of the motor at the marked position of the line segment 3-3' shown in Figure 2 . As shown in Figures 1 to 3 , the motor 12 includes a stator assembly 20 and a stator housing 30 for accommodating the stator assembly 20. The stator housing 30 includes a base 31 and a side wall portion 32. The side wall portion 32 is connected to the base 31 and together with the base 31 forms a receiving groove 33. The stator assembly 20 is disposed in the receiving groove 33 of the stator housing 30.

[0076] As shown in Figures 1 to 3 , the stator assembly 20 includes a winding frame 21 and a plurality of coils 22. The winding frame 21 is disposed on the side wall portion 32 of the stator housing 30, and the coils 22 are disposed on the winding frame 21 and are circumferentially arranged in the receiving groove 33. The winding frame 21 may include an iron core 23, and the coils 22 are wound around the iron core 23. In some embodiments, the winding frame 21 further includes a covering member 24 covering the iron core 23, and the covering member 24 is, for example, a plastic part.

[0077] As shown in Figures 1 to 3 , the stator assembly 20 further includes at least one second conductive terminal 25. The second conductive terminal 25 is disposed on the winding frame 21 and is electrically connected to the coils 22. The coils 22 can receive power and generate a magnetic field via the second conductive terminal 25, thereby driving the rotor assembly of the motor 12 (for example, Figure 6 the rotor assembly 60 shown in Figure 6 ) and the impeller connected to the rotor assembly (for example,

[0078] As shown in Figures 1 to 3 , in the shown embodiment, the motor 12 is a three-phase AC motor. The plurality of coils 22 can be divided into three groups, corresponding to the three phases of the three-phase alternating current respectively. The stator assembly 20 includes three second conductive terminals 25, which are respectively connected to the coils 22 of the three groups. Additionally, the stator assembly 20 may further include a fourth second conductive terminal 26 for grounding.

[0079] As shown in Figures 1 to 3As shown, the stator housing 30 further includes a connector structure 34 disposed on the base 31 and located on a side of the base 31 away from the receiving groove 33. The motor 12 further includes at least one first conductive terminal 50 (e.g., a metal pin) disposed on the stator housing 30. Each first conductive terminal 50 is connected to one of the second conductive terminals 25 and extends to the connector structure 34. In this way, for a system using the water pump 11 (e.g., a vehicle), it can be connected to the connector structure 34, and the motor 12 can be powered and controlled through the first conductive terminals 50 in the connector structure 34 to control the operation of the water pump 11.

[0080] As Figures 1 to 3 shown, the first conductive terminal 50 includes a first end 51 and a second end 52. The first end 51 and the second end 52 are located at opposite ends of the first conductive terminal 50, and the first end 51 and the second end 52 are respectively located in the receiving groove 33 and the connector structure 34. In some embodiments, the first conductive terminal 50 is embedded in the stator housing 30. For example, the stator housing 30 can be a plastic part. During manufacturing, the stator housing 30 and the metal first conductive terminal 50 wrapped by the stator housing 30 can be formed by insert molding. In some embodiments, the first end 51 and the second end 52 of the first conductive terminal 50 protrude from the base 31 of the stator housing 30, and the first conductive terminal 50 further includes an intermediate section 54 connected between the first end 51 and the second end 52, and the intermediate section 54 is embedded in the base 31.

[0081] Please refer to Figure 4 . Figure 4 To show Figure 2 the cross-sectional view of the motor shown at the marked line segment 4 - 4'. As Figure 3 and Figure 4 shown, the first end 51 of the first conductive terminal 50 has a first insertion opening 53, and the second conductive terminal 25 of the stator assembly 20 is fixedly inserted into the first insertion opening 53, thereby connecting to the first conductive terminal 50. Therefore, the stator assembly 20 can be connected to the first conductive terminal 50 in an assembled manner without using a welding process.

[0082] As Figure 3 and Figure 4As shown, the stator housing 30 further includes at least one guiding structure 35 disposed in the receiving groove 33, and each guiding structure 35 is arranged facing the first end 51 of one of the first conductive terminals 50. The guiding structure 35 has a second insertion opening 36 that is aligned with the first insertion opening 53 of the first end 51 of the first conductive terminal 50. The guiding structure 35 can guide the second conductive terminal 25 of the stator assembly 20 to be aligned with the first insertion opening 53 of the first conductive terminal 50 and inserted therein, facilitating assembly. When assembling the stator assembly 20 into the stator housing 30, the second conductive terminal 25 is first inserted into the second insertion opening 36 of the guiding structure 35, and then can be inserted into the first insertion opening 53 of the first conductive terminal 50 along the trend, completing the connection of the first conductive terminal 50 and the second conductive terminal 25. In some embodiments, the guiding structure 35 is integrally formed with the side wall portion 32 of the stator housing 30.

[0083] As Figure 4 shown, the first end 51 of the first conductive terminal 50 abuts against the end face 37 of the guiding structure 35 around the second insertion opening 36, and the first insertion opening 53 is partially or wholly recessed relative to the second insertion opening 36. Through the above configuration, the first conductive terminal 50 and the second conductive terminal 25 can be tightly combined to avoid poor contact, and the first conductive terminal 50 itself has elasticity and can absorb manufacturing tolerances, enabling each first conductive terminal 50 to be stably connected to the corresponding second conductive terminal 25.

[0084] As Figure 4 shown, in some embodiments, the minimum width W1 of the first insertion opening 53 of the first conductive terminal 50 is less than the width W2 of the second insertion opening 36 of the guiding structure 35 (for example: the width of the end of the second insertion opening 36 facing the first conductive terminal 50), and the maximum width W3 of the first end 51 of the first conductive terminal 50 is greater than the width W2 of the second insertion opening 36. In some embodiments, the vertical projection of the inner wall of the second insertion opening 36 on the base 31 surrounds the vertical projection of the inner wall of the first insertion opening 53 on the base 31. The above vertical projection refers to the projection along the direction perpendicular to the base 31.

[0085] As Figure 4 shown, in some embodiments, the inner wall of the second insertion opening 36 of the guiding structure 35 has an inclined surface 38, such that the end of the second insertion opening 36 facing the first conductive terminal 50 is recessed relative to the end of the second insertion opening 36 away from the first conductive terminal 50. The guiding structure 35 having the inclined surface 38 can correct the second conductive terminal 25 when its position is slightly deviated, enabling it to be aligned with the first insertion opening 53 of the first conductive terminal 50 and inserted therein.

[0086] As Figure 4As shown, in some embodiments, the guiding structure 35 further has a side opening 39, and the side opening 39 exposes a side of the first end 51 of the first conductive terminal 50 that is away from the side wall portion 32( Figure 3 The side opening 39 is also shown and can be referred to together). The provision of the side opening 39 can give the first conductive terminal 50 an appropriate deformation space when the second conductive terminal 25 is inserted into the first insertion opening 53 of the first conductive terminal 50. On the other hand, it can also reduce the manufacturing difficulty of the stator housing 30.

[0087] Please refer to Figure 5 . Figure 5 To show Figures 1 to 3 A perspective view of the first conductive terminal 50 shown above. As described above, the first conductive terminal 50 includes the above-mentioned first end 51, second end 52, and an intermediate section 54 connected between the first end 51 and the second end 52. The first end 51 and the second end 52 are bent relative to the intermediate section 54, and the first end 51 and the second end 52 are bent in opposite directions. In some embodiments, the first end 51 of the first conductive terminal 50 includes a bent portion 55, and the bent portion 55 is bent to form a notch as the first insertion opening 53.

[0088] As Figure 4 And Figure 5 Shown, in some embodiments, the bent portion 55 has an outer wall surface 56, the outer wall surface 56 faces away from the notch (i.e., the first insertion opening 53), and the outer wall surface 56 is wider than the second insertion opening 36 of the guiding structure 35. The outer wall surface 56 may include two opposite wall portions, and the distance between the two wall portions (for example, the aforementioned maximum width W3) is greater than the width W2 of the second insertion opening 36 of the guiding structure 35.

[0089] Please refer to Figure 6 . Figure 6 To show Figure 1 A cross-sectional view of the water pump 11 at the marked position of the line segment 6-6'. The motor 12 further includes a rotor assembly 60, and the rotor assembly 60 is disposed in the receiving groove 33 and faces the stator assembly 20. The stator assembly 20 is a ring structure, and the rotor assembly 60 can be disposed at the center of the stator assembly 20. The motor 12 further includes a shaft member 17, and the shaft member 17 passes through the center of the rotor assembly 60. The rotor assembly 60 includes a plurality of magnets 65 (for example: permanent magnets), and the magnets 65 face the coils 22 of the stator assembly 20. When the coils 22 are energized, a magnetic field is generated, and the rotor assembly 60 including the magnets 65 is affected by the magnetic field and rotates on the shaft member 17. The impeller 19 of the water pump 11 is connected to the rotor assembly 60 and rotates together with the rotor assembly 60.

[0090] Please refer to and refer to together Figure 7 . Figure 7 To show Figure 2 And Figure 3Perspective view of the stator housing 30 of the motor 12 shown. As Figure 6 As Figure 7 shown, in some embodiments, the stator housing 30 further includes a stop structure 41 disposed on the inner wall of the side wall portion 32 and configured to limit the movement of the stator assembly 20 in the first direction D1. The motor 12 further includes a second housing 13 that covers the receiving groove 33 of the stator housing 30 and is configured to limit the movement of the stator assembly 20 in a second direction D2 opposite to the first direction D1. The provision of the stop structure 41 and the second housing 13 can prevent the stator assembly 20 from being displaced in the receiving groove 33.

[0091] As Figure 6 As Figure 7 shown, in some embodiments, the second housing 13 abuts against the edge of the winding frame 21 away from the base portion 31, thereby limiting the movement of the stator assembly 20. In some embodiments, the stop structure 41 is a flange formed on the inner wall of the side wall portion 32, and the flange interferes with the winding frame 21, thereby limiting the movement of the stator assembly 20.

[0092] As Figure 6 As Figure 7 shown, in some embodiments, a rubber strip 14 may be provided between the stator housing 30 and the second housing 13 and / or between the flow channel structure 15 and the second housing 13 to seal the internal space of the receiving groove 33 and / or the flow channel structure 15.

[0093] As Figure 6 As Figure 7 shown, in some embodiments, the winding frame 21 includes a first engaging structure 29, and the stator housing 30 further includes a second engaging structure 49 disposed on the inner wall of the side wall portion 32 and engaged with the first engaging structure 29, thereby preventing the stator assembly 20 from being displaced in the receiving groove 33. In some embodiments, the second engaging structure 49 includes a tenon 48, and the first engaging structure 29 includes a snap structure 28 that snaps onto the tenon 48. In other embodiments, the positions of the tenon and the snap structure may be reversed, that is, the first engaging structure 29 may include a tenon, and the second engaging structure 49 may include a snap structure that snaps onto the tenon.

[0094] Please refer to Figure 8 . Figure 8 To show Figure 1 a cross-sectional view of the water pump 11 shown, wherein the cross-section passes through Figure 7 the bump 47 shown. As Figure 7 As Figure 8As shown, in some embodiments, the second engaging structure 49 includes at least one bump 47, and the first engaging structure 29 includes at least one clamping structure 27 for clamping the bump 47. In some embodiments, the clamping structure 27 includes two hooks, and the bump 47 is snapped into the gap between the two hooks. In other embodiments, the positions of the bump and the clamping structure can be swapped, that is to say, the first engaging structure 29 can include a bump, and the second engaging structure 49 can include a clamping structure for clamping the bump.

[0095] Please refer to Figure 2 and Figure 7 . In some embodiments, the stator housing 30 includes a rib structure 42, and the bobbin 21 includes a groove 43 for receiving the rib structure 42. The groove 43 and the rib structure 42 extend along a first direction D1, and the first direction D1 is substantially perpendicular to the base 31 of the stator housing 30. In some embodiments, the bobbin 21 can include a rib structure 42, and the stator housing 30 can include a groove 43 for receiving the rib structure 42.

[0096] The groove 43 and the rib structure 42 can serve as alignment structures to facilitate the assembly of the stator assembly 20. Specifically, when assembling the stator assembly 20 into the stator housing 30, as long as the groove 43 and the rib structure 42 are aligned, the second conductive terminal 25 can be inserted into the guiding structure 35 and the first conductive terminal 50 in an aligned manner.

[0097] It should be noted that in addition to being applied to the water pump 11, the motor 12 of the present disclosure can also have other applications. For example, the motor 12 of the present disclosure can also be applied to a fan or used as an electric motor for providing power to an electric vehicle. However, it should be understood that the application scope of the motor 12 of the present disclosure is not limited to the above examples.

[0098] In summary, the stator housing of the motor of the present disclosure is provided with a first conductive terminal, and the end of the first conductive terminal has a first insertion port. The stator assembly of the motor includes a second conductive terminal for connecting to the first conductive terminal. The stator assembly can be connected to the stator housing by assembling, and the second conductive terminal is guided by the guiding structure of the stator housing to be inserted into the first insertion port of the first conductive terminal to complete the connection between the stator assembly and the stator housing. Compared with the traditional method of relying on welding or a circuit board to connect the stator assembly and the stator housing, the motor of the present disclosure is easier to manufacture and assemble, and can reduce the production cost of the motor.

[0099] Although the present disclosure has been disclosed as above in embodiments, it is not intended to limit the present disclosure. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure should be determined by the scope defined by the appended claims.

Claims

1. An electric motor, characterized in that: Include: A stator housing comprises a base, a side wall and a connector structure, wherein the connector structure is arranged on the base, and the side wall is connected to the base and forms a receiving groove together with the base; A first conductive terminal is disposed on the stator housing and includes a first end portion and a second end portion opposite to each other, the second end portion is located in the connector structure, the first end portion is located in the receiving groove and has a first insertion opening, wherein the stator housing further includes a guide structure, the guide structure is disposed facing the first end portion of the first conductive terminal and has a second insertion opening, wherein a minimum width of the first insertion opening is smaller than a width of the second insertion opening, and a maximum width of the first end portion of the first conductive terminal is larger than the width of the second insertion opening; A stator assembly is disposed in the receiving slot of the stator housing and includes a coil and a second conductive terminal, the second conductive terminal is connected to the coil and inserted into the first insertion port and the second insertion port; and A rotor assembly is arranged facing the stator assembly.

2. An electric motor, characterized in that: Include: A stator housing comprises a base, a side wall and a connector structure, wherein the connector structure is arranged on the base, and the side wall is connected to the base and forms a receiving groove together with the base; A first conductive terminal is disposed on the stator housing and includes a first end portion and a second end portion opposite to each other, the second end portion is located in the connector structure, the first end portion is located in the receiving groove and has a first insertion opening, wherein the stator housing further includes a guide structure, the guide structure is disposed facing the first end portion of the first conductive terminal, and has a second insertion opening and an end surface, wherein the end surface is disposed around the second insertion opening and abuts against the first end portion of the first conductive terminal, wherein the first insertion opening is partially or entirely retracted relative to the second insertion opening; A stator assembly is disposed in the receiving slot of the stator housing and includes a coil and a second conductive terminal, the second conductive terminal is connected to the coil and inserted into the first insertion port and the second insertion port; and A rotor assembly is arranged facing the stator assembly.

3. The electric motor according to claim 1 or 2, characterized in that: A vertical projection of the inner wall of the second insertion opening on the base surrounds a vertical projection of the inner wall of the first insertion opening on the base.

4. The electric motor according to claim 1 or 2, characterized in that: The first end portion of the first conductive terminal includes a bent portion, and the bent portion is bent to form a notch as the first insertion port.

5. The electric motor according to claim 4, characterized in that The bent portion has an outer wall surface, the outer wall surface faces away from the second conductive terminal, and the outer wall surface is wider than the second insertion opening.

6. The electric motor according to claim 1 or 2, characterized in that: The inner wall of the second insertion opening has an inclined surface, so that an end of the second insertion opening facing the first conductive terminal is retracted relative to an end of the second insertion opening away from the first conductive terminal.

7. The electric motor according to claim 1 or 2, characterized in that: The guiding structure also has a side opening, and the side opening exposes a side of the first end portion of the first conductive terminal away from the side wall portion.

8. The electric motor according to claim 1 or 2, characterized in that: The stator assembly also includes a winding frame, the coil and the second conductive terminal are arranged on the winding frame, wherein one of the winding frame and the stator housing includes a convex rib structure, and the other of the winding frame and the stator housing includes a groove for receiving the convex rib structure, wherein the groove and the convex rib structure extend along a first direction, and the first direction is perpendicular to the base of the stator housing.

9. The electric motor according to claim 1 or 2, characterized in that: The stator assembly also includes a winding frame, the coil and the second conductive terminal are arranged on the winding frame, wherein the winding frame includes a first clamping structure, and the stator housing also includes a second clamping structure, which is arranged on an inner wall of the side wall portion and clamped with the first clamping structure.

10. The electric motor according to claim 9, characterized in that One of the first clamping structure and the second clamping structure includes a protrusion, and the other of the first clamping structure and the second clamping structure includes a clamping structure, and the clamping structure clamps the protrusion.

11. The electric motor according to claim 9, characterized in that One of the first engaging structure and the second engaging structure includes a tenon, and the other of the first engaging structure and the second engaging structure includes a buckle structure, and the buckle structure is buckled with the tenon.

12. The electric motor according to claim 1 or 2, characterized in that: The stator assembly also includes a winding frame, the coil and the second conductive terminal are arranged on the winding frame, wherein the stator housing also includes a stop structure, which is arranged on an inner wall of the side wall portion and is configured to limit the movement of the stator assembly in a first direction, wherein the motor also includes a second housing, the second housing covers the groove of the stator housing, and is configured to limit the movement of the stator assembly in a second direction opposite to the first direction.

13. The electric motor according to claim 1 or 2, characterized in that: The first conductive terminal is buried in the stator housing.

14. A water pump, characterized in that: Include: An electric motor as claimed in claim 1 or 2; A flow channel structure; and An impeller is connected to the rotor assembly of the motor and is arranged in the flow channel structure.

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