Stator assembly and electric machine

Abstract

The application discloses a kind of stator assembly and motor, it is related to wiring terminal field.Stator assembly includes insulating frame, winding, outlet seat, cover plate and multiple first terminals, outlet seat is equipped with multiple first installation sites, multiple first terminals are correspondingly arranged in multiple first installation sites.First terminal includes first welding portion and outlet portion.Winding is wound on insulating frame, and winding also includes multiple first outgoing wires that are led out.Using the design of outlet seat, and the structure of first terminal is reasonably designed, it is convenient to lead outgoing wire to first terminal, reduce the welding difficulty of first outgoing wire and first welding portion, improve production efficiency.Multiple first outgoing wires can be correspondingly welded on multiple first welding portions, thereby improving the stability of first outgoing wire and terminal connection, and it is not easy to loosen.Cover plate is connected with outlet seat and covers first installation site, plays a protective role, and outlet portion is arranged in cover plate, which facilitates the connection of outlet portion and power cord.

Description

Technical Field

[0001] This invention relates to the field of terminal blocks, and in particular to a stator assembly and a motor. Background Technology

[0002] The motor's leads and terminals are connected, and the terminals are connected to the power supply lines to supply power to the windings. In related technologies, the stator has high requirements for miniaturization and slot fill factor, but this is not conducive to winding lead-out. For ease of installation, the leads are usually fixed by crimping, using crimping components to fix the leads in the wiring slots, thus facilitating the connection between the leads and terminals. However, this method results in unstable connections between the leads and terminals, poor contact, and a tendency to loosen. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a stator assembly that can reduce the difficulty of connecting leads and terminals and improve the stability of the lead and terminal connections.

[0004] The present invention also proposes an electric motor having the above-described stator assembly.

[0005] A stator assembly according to a first aspect of the present invention includes:

[0006] Insulating frame;

[0007] A winding, wound around the insulating frame, the winding including a plurality of first leads extending out;

[0008] A cable outlet socket is disposed on the insulating frame, and the cable outlet socket is provided with a plurality of first mounting positions;

[0009] A cover plate is connected to the outlet socket and covers the first mounting position;

[0010] Multiple first terminals are respectively disposed at multiple first mounting positions. Each of the multiple first terminals includes a first welding part and a wire outlet part. The multiple first welding parts are used to weld multiple first lead wires, and the multiple wire outlet parts pass through the cover plate.

[0011] The stator assembly according to embodiments of the present invention has at least the following beneficial effects:

[0012] The cable outlet has multiple first mounting positions, and multiple first terminals are correspondingly located at these positions. Each first terminal includes a first welding portion and a cable outlet portion. The winding is wound on an insulating frame and also includes multiple first lead-out wires. The cable outlet design and the rationally designed structure of the first terminals facilitate the routing of the lead-out wires to the first terminals, reducing the welding difficulty between the first lead-out wires and the first welding portion, and improving production efficiency. Multiple first lead-out wires can be correspondingly welded to multiple first welding portions, thereby improving the stability of the connection between the first lead-out wires and the terminals and preventing loosening. A cover plate connects to the cable outlet and covers the first mounting positions, providing protection, while the cable outlet portion passes through the cover plate, facilitating connection between the cable outlet portion and the power cord.

[0013] According to some embodiments of the present invention, the edge of the first welded portion is provided with a first bent portion, and the first bent portion extends in a direction away from the outlet seat.

[0014] According to some embodiments of the present invention, the first bending portion is provided at one end of the first welding portion facing the end of the first lead wire, the first bending portion is provided with a first wire passage groove, and the first lead wire passes through the first wire passage groove.

[0015] According to some embodiments of the present invention, the lead-out socket is provided with a first retainer and a second retainer at intervals along the extension direction of the first lead-out wire, the first terminal is disposed between the first retainer and the second retainer, and the first lead-out wire is snapped into the first retainer and the second retainer.

[0016] According to some embodiments of the present invention, the cable outlet is provided with a clearance groove along the extension direction of the first lead wire, and the clearance groove extends through the cable outlet along the extension direction of the first lead wire.

[0017] According to some embodiments of the present invention, the first terminal further includes a first mounting portion, the first mounting portion connecting the first welding portion and the outgoing portion, and the first mounting portion being inserted into the first mounting position.

[0018] According to some embodiments of the present invention, the lead-out socket is further provided with a second mounting position, the winding further includes a plurality of second lead wires, the stator assembly further includes a second terminal provided at the second mounting position, the second terminal includes a connecting portion and a plurality of second welding portions, the plurality of second welding portions are spaced apart from the connecting portion, and the plurality of second welding portions are used to weld the plurality of second lead wires.

[0019] According to some embodiments of the present invention, the edge of the second welding portion is provided with a second bending portion, and the second bending portion extends in a direction away from the cable outlet.

[0020] According to some embodiments of the present invention, the second terminal further includes a protrusion and a second mounting portion, the second mounting portion being connected to the connecting portion and inserted into the second mounting position, and the protrusion being connected to the second mounting portion and extending in a direction away from the cable outlet.

[0021] According to some embodiments of the present invention, the cover plate is provided with a surrounding edge and a plurality of through holes, the surrounding edge is arranged around the plurality of through holes and forms a mounting cavity, and the plurality of wire outlets are correspondingly inserted through the plurality of through holes and located in the mounting cavity.

[0022] According to some embodiments of the present invention, the end of the cable outlet away from the insulating frame is provided with a positioning groove, and the end of the cover plate away from the insulating frame is provided with a baffle. The baffle and the positioning groove are positioned and engaged, and a plastic-sealed space is formed between the cable outlet, the cover plate and the baffle.

[0023] The motor according to a second aspect of the present invention includes the stator assembly described in the above embodiments.

[0024] The motor according to embodiments of the present invention has at least the following beneficial effects:

[0025] The cable outlet has multiple first mounting positions, and multiple first terminals are correspondingly located at these positions. Each first terminal includes a first welding portion and a cable outlet portion. The winding is wound on an insulating frame and also includes multiple first lead-out wires. The cable outlet design and the rationally designed structure of the first terminals facilitate the routing of the lead-out wires to the first terminals, reducing the welding difficulty between the first lead-out wires and the first welding portion, and improving production efficiency. Multiple first lead-out wires can be correspondingly welded to multiple first welding portions, thereby improving the stability of the connection between the first lead-out wires and the terminals and preventing loosening. A cover plate connects to the cable outlet and covers the first mounting positions, providing protection, while the cable outlet portion passes through the cover plate, facilitating connection between the cable outlet portion and the power cord.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic diagram of the structure of a stator assembly according to an embodiment of the present invention;

[0029] Figure 2 This is a partially exploded view of a stator assembly according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the first terminal according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the second terminal according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the connection between the insulating frame and the terminal block according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the cable outlet and the first terminal and the second terminal in one embodiment of the present invention;

[0034] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0035] Figure 8 This is a schematic diagram of the structure of a cover plate according to an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of a stator assembly after plastic coating according to an embodiment of the present invention.

[0037] Figure label:

[0038] Stator assembly 1000;

[0039] Stator core 100; First lead 110; Second lead 120; Winding 130;

[0040] Insulating frame 200; cable outlet 210; first mounting position 211; first card holder 212; second card holder 213; clearance groove 214; positioning groove 215; second mounting position 216; cover plate 220; through hole 221; surrounding edge 222; mounting cavity 223; baffle 224;

[0041] First terminal 300; first welding part 310; first bending part 311; first wire channel 312; wire outlet part 320; first mounting part 330; protrusion 331;

[0042] Second terminal 400; connecting part 410; second welding part 420; second mounting part 430; protrusion 440; second bending part 450; second wire groove 451. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0046] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0047] Reference Figure 1 and Figure 2 As shown, a stator assembly 1000 according to an embodiment of the present invention can be used in motors, such as encapsulated motors and washing machine motors. The stator assembly 1000 of this embodiment includes a stator core 100, an insulating frame 200, a winding 130, a lead-out socket 210, a cover plate 220, and multiple first terminals 300. The insulating frame 200 is embedded in the stator core 100, and the winding 130 is wound around the insulating frame 200, and the winding 130 has multiple first leads 110. The lead-out socket 210 is connected to the insulating frame 200 and located outside the stator core 100. For example, the lead-out socket 210 and the insulating frame 200 are integrally formed, or connected to the insulating frame 200 by means of clips, screws, etc., or the lead-out socket 210 can also be connected to the stator core 100, depending on the actual situation.

[0048] Reference Figure 3 , Figure 5 and Figure 7As shown, the terminal block 210 has multiple first mounting positions 211, and multiple first terminals 300 are correspondingly mounted on the multiple first mounting positions 211. For example, there are two or three first mounting positions 211 and first terminals 300, and two or three first leads 110 are correspondingly provided. The first terminals 300 can be made of metal, such as copper or iron. Each first terminal 300 includes a lead-out portion 320 and a first soldering portion 310. The lead-out portion 320 can be connected to the first soldering portion 310, or the first terminal 300 also includes a first mounting portion 330, and the lead-out portion 320 and the first soldering portion 310 are respectively connected to the first mounting portion 330. The first soldering portion 310 is used to solder the first leads 110, and multiple first leads 110 are correspondingly soldered onto the multiple first soldering portions 310. Figure 7 The grid-like lines represent the welding material. After welding, the cover plate 220 and the cable outlet 210 are connected, and the cover plate 220 can cover multiple first mounting positions 211, providing protection. In order to facilitate the connection between the cable outlet 320 and the power cord, the cable outlet 320 extends out of the cover plate 220, which facilitates the power supply to the winding 130.

[0049] Understandably, some stators have high requirements for miniaturization and slot fill factor, which is not conducive to stator lead-out. Therefore, the lead-out bracket 210 is set outside the stator core 100, which facilitates the lead-out of the winding 130 to the first welding part 310 of the first terminal 300, reduces welding difficulty, improves production efficiency, and enables automated production, reducing labor costs. The first lead-out 110 is welded to the first welding part 310, which can improve the stability of the connection with the first terminal 300 and reduce the possibility of loosening and falling off.

[0050] Reference Figure 3 As shown, in an embodiment of the present invention, the edge of the first welding portion 310 is provided with a first bending portion 311, which extends in a direction away from the lead-out seat 210. For example, the first bending portion 311 can be formed by bending the edge of the first welding portion 310 in a direction away from the lead-out seat 210, that is, the first bending portion 311 and the first welding portion 310 are integrally formed, which is simple to manufacture and low in cost. It can be understood that the first lead wire 110 is connected to the first welding portion 310 by soldering. When the first terminal 300 is made of copper, the adhesion between the solder and the copper is good. In order to further improve the adhesion between the solder and the copper, the first bending portion 311 is provided on the edge of the first welding portion 310. The solder can adhere to the first welding portion 310 and the first bending portion 311, and the solder can better wrap the first lead wire 110, reduce the occurrence of cold solder joints, and improve the stability and welding quality of the connection between the first lead wire 110 and the first terminal 300.

[0051] Continue to refer to Figure 3As shown, in an embodiment of the present invention, a first bending portion 311 is provided at one end of the first welding portion 310 along the extending direction of the first lead wire 110. For example, the first bending portion 311 is located at the end of the first welding portion 310 facing the end of the first lead wire 110. The first bending portion 311 is also provided with a first wire-passing groove 312 so that the first lead wire 110 can pass through the first wire-passing groove 312. The height of the first wire-passing groove 312 is greater than or equal to the outer diameter of the first lead wire 110, and the width of the first wire-passing groove 312 is greater than or equal to the outer diameter of the first lead wire 110, so that the first lead wire 110 can pass through the first wire-passing groove 312. It can be understood that the first wire-passing groove 312 can restrict the position of the first lead wire 110, and has a certain limiting effect on the first lead wire 110 during the welding process, effectively reducing the occurrence of misalignment or movement of the first lead wire 110, so that the first lead wire 110 can be accurately welded to the first welding portion 310.

[0052] Reference Figure 5 , Figure 6 and Figure 7 As shown in the embodiment of the present invention, the lead-out socket 210 is provided with a first retainer 212 and a second retainer 213 spaced apart along the extension direction of the first lead-out wire 110, and the first terminal 300 is located between the first retainer 212 and the second retainer 213. When the first lead-out wire 110 needs to be soldered, the first lead-out wire 110 can be sequentially snapped onto the first retainer 212, the first wire guide groove 312 and the second retainer 213, which serves as a limiting function, thereby facilitating the soldering of the first lead-out wire 110 and the first soldering part 310, reducing the soldering difficulty and improving the soldering efficiency.

[0053] Reference Figure 7 As shown, in an embodiment of the present invention, the lead-out socket 210 is provided with a clearance groove 214 along the extending direction of the first lead-out wire 110, and the clearance groove 214 penetrates the lead-out socket 210 along the extending direction of the first lead-out wire 110. It is understood that the first lead-out wire 110 is relatively long during the welding stage. Therefore, after the first lead-out wire 110 is sequentially snapped onto the first retainer 212, the first wire guide groove 312, and the second retainer 213, it can pass through the clearance groove 214, making it easier to pull the first lead-out wire 110 to fit against the welding position of the first welding part 310, facilitating subsequent welding work. After welding is completed, the first lead-out wire 110 is then trimmed, for example, to [length missing]. Figure 7 The location is shown in the figure. Therefore, setting the clearance groove 214 can reduce welding difficulty and improve welding efficiency.

[0054] Reference Figure 3 and Figure 5As shown in the embodiment of the present invention, the first mounting position 211 is provided with a mounting groove, and the first mounting part 330 of the first terminal 300 is inserted into the mounting groove, making installation simple and convenient. In the embodiment of the present invention, the first mounting part 330 is provided with a protrusion 331, which is inclined so that the first mounting part 330 and the mounting groove fit tightly, effectively preventing the first terminal 300 from loosening and falling off, and improving the stability of the installation of the first terminal 300.

[0055] Reference Figure 4 , Figure 5 and Figure 7 As shown, in an embodiment of the present invention, the terminal block 210 is provided with a second mounting position 216, the winding 130 further includes multiple second lead wires 120, and the stator assembly 1000 further includes a second terminal 400, which is mounted on the second mounting position 216. The second terminal 400 includes a connecting portion 410 and multiple second welding portions 420, which are spaced apart on the connecting portion 410. The second welding portions 420 are used to weld the second lead wires 120, and the multiple second lead wires 120 are welded one-to-one to the multiple second welding portions 420. For example, there are three second welding portions 420 and three second lead wires 120, which are correspondingly arranged in three second welding portions 420. Alternatively, there are two second welding portions 420 and two second lead wires 120, depending on the actual situation. The second terminal 400 can be made of metal, such as copper or iron. The function of the second terminal 400 is to weld the second lead 120 of the neutral point together, so the multiple sets of winding lines are connected in a star configuration.

[0056] It should be noted that heat is generated during the welding process. When welding another second lead 120, it will affect the previously welded second lead 120, especially the middle second lead 120. Therefore, the multiple second welding parts 420 are arranged at intervals, which can effectively reduce heat transfer, reduce the mutual influence between adjacent second lead 120 during welding, improve welding quality, and also reduce material usage.

[0057] Reference Figure 4As shown, in an embodiment of the present invention, the edge of the second welding portion 420 is provided with a second bending portion 450, which extends in a direction away from the lead-out seat 210. For example, the second bending portion 450 can be formed by bending the edge of the second welding portion 420 in a direction away from the lead-out seat 210, that is, the second bending portion 450 and the second welding portion 420 are integrally formed, which is simple to manufacture and low in cost. It is understood that the second lead 120 is connected to the second welding portion 420 by soldering. When the second terminal 400 is made of copper, the adhesion between the solder and the copper is good. In order to further improve the adhesion between the solder and the copper, the second bending portion 450 is provided on the edge of the second welding portion 420. The solder can adhere to the second welding portion 420 and the second bending portion 450, and the solder can better wrap the second lead 120, reduce the occurrence of cold solder joints, and improve the stability of the connection between the second lead 120 and the second terminal 400.

[0058] Reference Figure 4 and Figure 7 As shown, in an embodiment of the present invention, the second bending portion 450 is disposed at one end of the second welding portion 420 along the extending direction of the second lead wire 120, for example, the second bending portion 450 is located at the end of the second welding portion 420 facing the end of the second lead wire 120. The second bending portion 450 is also provided with a second wire-passing groove 451 so that the second lead wire 120 can pass through the second wire-passing groove 451. The height of the second wire-passing groove 451 is greater than or equal to the outer diameter of the second lead wire 120, and the width of the second wire-passing groove 451 is greater than or equal to the outer diameter of the second lead wire 120, so that the second lead wire 120 can pass through the second wire-passing groove 451. It can be understood that the second wire-passing groove 451 can restrict the position of the second lead wire 120, and has a certain limiting effect on the second lead wire 120 during the welding process, effectively reducing the occurrence of misalignment or movement of the second lead wire 120, and ensuring that the second lead wire 120 can be accurately welded to the second welding portion 420.

[0059] Reference Figure 4As shown in the embodiment of the present invention, the second terminal 400 further includes a protrusion 440 and a second mounting portion 430. The second mounting portion 430 is connected to the connecting portion 410. The second mounting position 216 is also provided with a mounting groove. The second mounting portion 430 is inserted into the second mounting groove to limit the position of the second terminal 400. The protrusion 440 and the second mounting portion 430 are connected, and the second protrusion 440 extends in a direction away from the cable outlet 210. It can be understood that when installing the second terminal 400, employees or machinery can conveniently install the second terminal 400 on the second mounting position 216 by clamping the protrusion 440. The connection between the protrusion 440 and the second mounting portion 430 facilitates the alignment of the second mounting portion 430 and the mounting groove when installing the second terminal 400, reducing installation difficulty and improving installation efficiency.

[0060] Reference Figure 1 and Figure 8 As shown in the embodiment of the present invention, the cover plate 220 is provided with a surrounding edge 222 and a plurality of through holes 221, for example, three through holes 221. The surrounding edge 222 surrounds the three through holes 221 and forms mounting cavities 223, for example, three mounting cavities 223. Three cable outlets 320 are correspondingly inserted through the three through holes 221 and located within the three mounting cavities 223. The surrounding edge 222 serves to protect the cable outlets 320, effectively reducing the occurrence of bumps and damage to the cable outlets 320, and facilitating connection with power cords.

[0061] Reference Figure 2 and Figure 7 As shown, in an embodiment of the present invention, the end of the lead-out socket 210 away from the insulating frame 200 is provided with a positioning groove 215, and the end of the cover plate 220 away from the insulating frame 200 is provided with a baffle 224. The baffle 224 and the positioning groove 215 are positioned and engaged to form a plastic-sealed space between the lead-out socket 210, the cover plate 220, and the baffle 224. Therefore, after the first lead-out wire 110 and the second lead-out wire 120 are both welded, the cover plate 220 and the lead-out socket 210 are connected, and injection molding is performed in the plastic-sealed space between the cover plate 220, the baffle 224, and the lead-out socket 210, which provides protection and further improves the stability of the connection between the first lead-out wire 110, the second lead-out wire 120, the first terminal 300, and the second terminal 400. At the same time, by using injection molding, there is no need for manual terminal punching and tube insertion, reducing parts, saving costs, and therefore the operation is simple, enabling automated production and improving production efficiency. (Refer to...) Figure 8 As shown, the stator assembly 1000 can finally be plastic-coated to reduce the motor's temperature and noise.

[0062] An embodiment of the present invention provides a motor comprising the stator assembly 1000 of the above embodiments. The motor of this embodiment uses the stator assembly 1000 of the above embodiments. A lead-out socket 210 is disposed on an insulating frame 200, and the lead-out socket 210 has multiple first mounting positions 211, with multiple first terminals 300 correspondingly disposed at the multiple first mounting positions 211. Each first terminal 300 includes a first welding portion 310 and a lead-out portion 320. A winding 130 is wound on the insulating frame 200, and the winding 130 also includes multiple first lead wires 110. The design of the lead-out socket 210 and the rational design of the structure of the first terminals 300 facilitate the lead wires to be led out to the first terminals 300, reducing the welding difficulty of the first lead wires 110 and the first welding portion 310, and improving production efficiency. Multiple first lead wires 110 can be correspondingly welded to multiple first welding portions 310, thereby improving the stability of the connection between the first lead wires 110 and the terminals and preventing loosening. The cable outlet 320 passes through the cover plate 220, which facilitates the connection between the cable outlet 320 and the power cord.

[0063] Since the motor adopts all the technical solutions of the stator assembly 1000 of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stator assembly, characterized in that, include: Stator core; An insulating frame is embedded in the stator core; A winding is wound around the insulating frame, the winding including a plurality of first leads; The cable outlet is provided with a plurality of first mounting positions, and the cable outlet is connected to the insulating frame and located outside the stator core; Cover plate, connected to the outlet socket and covering multiple first mounting positions; Multiple first terminals are provided, each corresponding to a multiple first mounting positions. Each first terminal includes a first welding part and a lead-out part. Each first welding part is used to weld the corresponding first lead-out wire. The multiple lead-out parts pass through the cover plate. The edge of the first welding part is provided with a first bending part. The first bending part extends away from the lead-out seat and is located at the end of the first welding part facing the end of the first lead-out wire. The first bending part is provided with a first wire-passing groove, through which the first lead-out wire passes. The lead-out seat is provided with a first retaining seat and a second retaining seat at intervals along the extension direction of the first lead-out wire. The first terminal is located between the first retaining seat and the second retaining seat. The first lead-out wire is engaged with the first retaining seat and the second retaining seat. The lead-out seat is provided with a clearance groove along the extension direction of the first lead-out wire, which extends through the lead-out seat along the extension direction of the first lead-out wire.

2. The stator assembly according to claim 1, characterized in that, The first terminal further includes a first mounting portion, which connects the first welding portion and the outgoing portion, and is inserted into the first mounting position.

3. The stator assembly according to claim 1, characterized in that, The lead-out socket is also provided with a second mounting position, the winding also includes multiple second lead-out wires, the stator assembly also includes a second terminal provided at the second mounting position, the second terminal includes a connecting part and multiple second welding parts, the multiple second welding parts are spaced apart from the connecting part, and the multiple second welding parts are used to weld multiple second lead-out wires.

4. The stator assembly according to claim 3, characterized in that, The edge of the second welding part is provided with a second bending part, which extends in a direction away from the outlet seat.

5. The stator assembly according to claim 3, characterized in that, The second terminal also includes a protrusion and a second mounting portion. The second mounting portion is connected to the connecting portion and inserted into the second mounting position. The protrusion is connected to the second mounting portion and extends in a direction away from the outlet socket.

6. The stator assembly according to claim 1, characterized in that, The cover plate has a surrounding edge and multiple through holes. The surrounding edge surrounds the multiple through holes and forms an installation cavity. The multiple cable outlets are correspondingly inserted through the multiple through holes and located within the installation cavity.

7. The stator assembly according to claim 1, characterized in that, The end of the cable outlet is provided with a positioning groove away from the insulating frame, and the end of the cover plate is provided with a baffle away from the insulating frame. The baffle and the positioning groove are positioned and matched, and a plastic-sealed space is formed between the cable outlet, the cover plate and the baffle.

8. An electric motor, characterized in that, Includes the stator assembly according to any one of claims 1 to 7.

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