Motor stator and motor

Abstract

The utility model discloses a motor stator and a motor. The motor stator comprises a stator core, a stator winding and an injection molding assembly. Wherein the stator winding is coupled with the stator iron core; the injection molding assembly comprises an injection molding part and at least one conductive part, the at least one conductive part is arranged on the side, close to the stator winding, of the injection molding part and coupled with the stator winding, and the at least one conductive part is coupled with an external power supply through the side, away from the stator winding, of the injection molding part so as to supply power to the stator winding through the external power supply; wherein each conductive piece supports transmission of large current. According to the motor stator, coupling with the external power supply can be achieved, the conductive part supports transmission of large current with the external power supply, insulation and voltage resistance can be achieved due to the existence of the injection molding part, and the possibility of risks after heating is reduced.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, particularly to motor stators and motors. Background Technology

[0002] Currently, motor stators on the market are mainly manufactured using layered processing, which is complex, expensive, and requires advanced manufacturing equipment. For some types of motors (such as rotary motors), it is unnecessary to consider using this type of motor stator from the perspective of cost or performance.

[0003] Furthermore, current motor stators manufactured using existing processes typically support low current. Achieving high current support in motor stators would require higher manufacturing costs and longer production times. Additionally, existing motor stators pose safety and insulation risks when used in motors, especially after the motor heats up, making the risks even more uncontrollable. Utility Model Content

[0004] This application provides a motor stator and a motor that can be coupled to an external power source. The conductive parts support the transmission of large currents between the motor and the external power source, while the presence of the injection-molded parts can achieve insulation and withstand voltage, reducing the possibility of risks arising after overheating.

[0005] To address the aforementioned technical problems, this application provides a motor stator, comprising a stator core, stator windings, and an injection-molded assembly. The stator windings are coupled to the stator core. The injection-molded assembly includes an injection-molded part and at least one conductive element. The at least one conductive element is disposed on the side of the injection-molded part near the stator windings and coupled to the stator windings. Furthermore, the at least one conductive element is coupled to an external power source via a side of the injection-molded part away from the stator windings, thereby supplying power to the stator windings from the external power source. Each conductive element supports the transmission of a large current.

[0006] In some embodiments, the stator core, stator winding, and injection molding assembly are arranged sequentially along a first direction.

[0007] In some embodiments, the injection-molded assembly includes a plurality of through holes; the stator winding includes a plurality of pins, each pin extending along a first direction, and each pin passing through a corresponding through hole to couple to a conductive element in the injection-molded assembly.

[0008] In some embodiments, the through-hole is a PCB hole; each pin passes through a corresponding PCB hole to couple to a conductive component in the injection-molded assembly.

[0009] In some embodiments, the conductive element includes a conductive body and at least one boss, the at least one boss being used to couple to an external power source.

[0010] In some embodiments, the cross-sectional shape of the conductive body is arc-shaped.

[0011] In some embodiments, the injection molded part is provided with at least one notch; all bosses are provided corresponding to all notches, and the bosses pass through the notches to couple to an external power source.

[0012] In some embodiments, the thickness of any one of the at least one conductive element is greater than 0.2 mm; the thickness of any one of the at least one conductive element is less than or equal to 1 mm.

[0013] In order to solve the above-mentioned technical problems, this application provides another aspect of an electric motor, which includes the motor stator described above.

[0014] In some embodiments, the number of conductive components in the motor stator corresponds to the number of parallel branches of the motor.

[0015] In some embodiments of this application, a motor stator includes a stator winding and an injection-molded assembly. The injection-molded assembly includes an injection-molded part and at least one conductive element. The at least one conductive element is disposed on the side of the injection-molded part near the stator winding and coupled to the stator winding. Furthermore, the at least one conductive element is coupled to an external power source via a side of the injection-molded part away from the stator winding, so as to supply power to the stator winding through the external power source. Each conductive element supports the transmission of a large current. Based on this, coupling with an external power source can be achieved, and the conductive element supports the transmission of a large current between the conductive element and the external power source. The presence of the injection-molded part can achieve insulation withstand voltage, reducing the possibility of risks arising from overheating. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 These are schematic diagrams of the motor stator structure in some embodiments of this application;

[0018] Figure 2 These are schematic diagrams of the injection molding components in some embodiments of this application;

[0019] Figure 3 These are schematic diagrams of the stator windings and stator core in some embodiments of this application;

[0020] Figure 4 These are schematic diagrams of the motor stator structure in some embodiments of this application;

[0021] Figure 5 These are schematic diagrams of the conductive elements in some embodiments of this application;

[0022] Figure 6This is a front view of the injection-molded component in some embodiments of this application;

[0023] Figure 7 This is a reverse schematic diagram of the injection-molded component in some embodiments of this application;

[0024] Figure 8 This is a schematic diagram of the motor structure in some embodiments of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining this application and not for limiting this application. It should also be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0030] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0031] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 limitations on the embodiments of this application.

[0032] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0033] Currently, motor stators on the market are mainly manufactured using layered processing, which is complex, expensive, and requires advanced manufacturing equipment. For some types of motors (such as rotary motors), it is unnecessary to consider using this type of motor stator from the perspective of cost or performance.

[0034] Furthermore, current manufacturing processes for motor stators typically produce stators that support low currents. Achieving stators that support high currents would require higher manufacturing costs and longer production times. Additionally, existing motor stators still pose safety and insulation risks when used in motors, especially after the motor heats up, making these risks even more uncontrollable.

[0035] See Figure 1 , Figure 1 This is a schematic diagram of the structure of a motor stator in some embodiments of this application. The motor stator 10 includes a stator core 101, a stator winding 102, and an injection molding assembly 103.

[0036] The stator winding 102 is coupled to the stator core 101.

[0037] The injection molding assembly 103 includes an injection molded part 1031 and at least one conductive element 1032. The at least one conductive element 1032 is disposed on the side of the injection molded part 1031 near the stator winding 102 and coupled to the stator winding 102. The at least one conductive element 1032 is coupled to an external power source through the side of the injection molded part 1031 away from the stator winding 102, so as to supply power to the stator winding 102 through an external power source. Each conductive element 1032 supports the transmission of large currents.

[0038] In some embodiments, the stator core 101, stator winding 102, and injection molding assembly 103 are arranged sequentially along a first direction.

[0039] In some embodiments, the stator winding 102 and the injection molding assembly 103 are spaced apart along a first direction. The first direction can be X-axis, Y-axis, or Z-axis, etc., and is not limited here.

[0040] In some embodiments, the shape and size of the stator winding 102 correspond to those of the stator core 101. The shape and size of the injection molding assembly 103 correspond to those of the stator winding 102.

[0041] For example, if the stator core 101 is a hollow cylinder, the stator winding 102 can also be configured as a hollow cylinder to fit the stator core 101. Similarly, when the stator winding 102 is a hollow cylinder, the injection-molded assembly 103 can also be a hollow cylinder to fit the stator winding 102.

[0042] In some embodiments, the injection molded part 1031 is made of an insulating material. The stator core 101, stator winding 102, and conductive part 1032 are made of a conductive material, such as a metal.

[0043] In some embodiments, when multiple conductive elements 1032 are present, the shapes and sizes of the multiple conductive elements 1032 may be the same or different. The conductive elements 1032 are formed by stamping using a stamping die.

[0044] Compared to conductive components in related technologies, the conductive component 1032 provided in this application can be stamped according to requirements. For example, compared to conductive components in related technologies, the conductive component 1032 in this application can be improved in thickness.

[0045] In one application scenario, the thickness of any one of the at least one conductive element 1032 in this application may be greater than 0.2 mm. The thickness of any one of the at least one conductive element 1032 in this application may be less than or equal to 1 mm. Further, the thickness of any one of the at least one conductive element 1032 in this application may be greater than 0.2 mm and less than or equal to 1 mm.

[0046] It is understood that the thickness of the conductive element 1032 is related to the conduction current; the thicker the conductive element 1032, the larger the conduction current. Any conductive element 1032 provided in this application supports the passage of large currents, and the corresponding motor stator 10 can be applied to motors with high currents.

[0047] It is understandable that, in addition to designing the shape and size of the conductive component 1032 according to the conductive current, the shape and size of the conductive component 1032 can also be designed according to the size of the motor.

[0048] In some embodiments, the shape and size of the conductive element 1032 can be multiple structures.

[0049] In some embodiments, an external power source is provided through the motor coil of the motor. Specifically, the conductive element 1032 is connected to the enameled wire of the motor coil.

[0050] In some embodiments, such as Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of an injection molding assembly in some embodiments of this application. The injection molding assembly 103 includes a plurality of through holes 1033.

[0051] The shape of the injection molding component 103 can be as follows: Figure 2 The image shown is of a hollow cylinder, but it can also be of other shapes; there are no restrictions here.

[0052] The number and size of the through holes 1033 on the injection molding component 103 can be set according to the actual situation and are not limited here. For example, the injection molding component 103 is provided with 24 through holes 1033.

[0053] In some embodiments, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the stator winding and stator core in some embodiments of this application. The stator winding 102 is coupled to one side of the stator core 101. The stator winding 102 includes a plurality of pins 1021, each pin 1021 extending along a first direction.

[0054] The shape of the stator winding 102 can be as follows: Figure 3 The image shown is of a hollow cylinder, but it can also be of other shapes; there are no restrictions here.

[0055] The number and size of the pins 1021 on the stator winding 102 can be set according to the actual situation, and there is no restriction here.

[0056] In one application scenario, the number and size of the through holes 1033 on the injection molding assembly 103 correspond to the number and size of the pins 1021 on the stator winding 102. For example, the injection molding assembly 103 includes 24 through holes 1033, and the electronic winding 102 includes 24 pins 1021.

[0057] In one application scenario, the number of through holes 1033 on the injection-molded assembly 103 is greater than the number of pins 1021 on the stator winding 102. Alternatively, the number of through holes 1033 on the injection-molded assembly 103 is less than the number of pins 1021 on the stator winding 102.

[0058] based on Figure 2 The injection molding component 103 shown and Figure 3 The stator winding 102 shown has each pin 1021 passing through a corresponding through hole 1033 to couple to the conductive element 1032 in the injection-molded assembly 103, specifically as follows: Figure 4 As shown.

[0059] In some embodiments, the through hole 1033 in the injection molding assembly 103 is a PCB (Printed Circuit Board) hole. In this case, each pin 1021 on the stator winding 102 passes through the corresponding PCB hole to couple to the conductive element 1032 in the injection molding assembly 103.

[0060] The pin 1021 and the conductive component 1032 can be connected by solder.

[0061] In some embodiments, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a conductive element in some embodiments of this application. The conductive element 1032 includes a conductive body 201 and at least one boss 202, the at least one boss 202 being used for coupling to an external power source.

[0062] In some embodiments, the injection-molded component 103 is a hollow cylinder, in which case the conductive body 201 is as follows: Figure 5 As shown, the cross-sectional shape of the conductive body 201 is arc-shaped.

[0063] It is understandable that the position of the boss 202 on the conductive body 201 can be determined according to the actual situation. For example, as Figure 5 As shown in Figure ①, the boss 202 is disposed on one side of the conductive body 201; for example, as... Figure 5 As shown in Figure ②, the boss 202 is located in the middle of the conductive body 201. In other embodiments, the boss 202 may be located in other positions on the conductive body 201.

[0064] In some embodiments, the conductive body 201 and the boss 202 are integrally formed or detachably connected.

[0065] The conductive body 201 can be integrally formed with the boss 202 through a mold. Specifically, the conductive body 201 is placed in a preset position on the mold, and a liquid insulator is poured into the conductive body 201 using the mold. After the insulator cools, it becomes a fixed injection molded part 1031.

[0066] The conductive body 201 can be detachably connected to the boss 202 via a connector, wherein the connector can be a stud, bolt, nut, screw or other, and there is no limitation.

[0067] In some embodiments, both the conductive body 201 and the boss 202 are made of a conductive material. For example, both the conductive body 201 and the boss 202 are made of copper.

[0068] In some embodiments, an external power source is provided through the motor coil of the motor. Specifically, the enameled wire of the motor coil passes through the notch O and connects to the conductive element 1032.

[0069] In some embodiments, such as Figure 6 and Figure 7 As shown, Figure 6 This is a front view of the injection-molded component in some embodiments of this application. Figure 7 This is a reverse schematic diagram of an injection molding assembly in some embodiments of this application. The injection molding assembly 103 includes three conductive elements 1032 and three bosses 202.

[0070] The injection molded part 1031 is provided with at least one notch O; all bosses 202 are provided corresponding to all notches O, and the bosses 202 pass through the notches O to couple to an external power source.

[0071] It is understood that each conductive element 1032 is arranged on the injection molded part 1031 according to the rules, so that the boss 202 of each conductive element 1032 corresponds to the notch O on the injection molded part 1031, so that the external power line can be coupled to the boss 202 through the notch O.

[0072] In some embodiments, when there are multiple protrusions 202 at the notch O, the external power supplies connected to the different protrusions 202 are different. For example, there are three protrusions 202 at the notch O, and these three protrusions 202 correspond to the U power line, V power line and W power line of the motor, respectively.

[0073] In some embodiments, when different bosses 202 are connected to different power lines and transmit different signals, each boss 202 corresponds to a conductive body 201, that is, each conductive element 1032 includes a conductive body 201 and a boss 202, so as to avoid short circuits and other situations.

[0074] In some embodiments, the shape and size of the notch O in the injection molded part 1031 can be determined according to the actual situation, and there are no restrictions here.

[0075] See Figure 8 , Figure 8 This is a schematic diagram of the structure of a motor in some embodiments of this application. The motor 100 includes the motor stator 10 described in any of the above embodiments, which will not be repeated here.

[0076] In some embodiments, the conductive element 1032 in the motor stator 10 is configured to correspond to the number of parallel branches of the motor 100. The number of parallel branches can be one, two, or other configurations.

[0077] Specifically, the shape and size of the conductive element 1032 in the motor stator 10 correspond to the number of parallel branches of the motor 100. It can be understood that the shape and size of the conductive element 1032 differ depending on the number of parallel branches of the motor.

[0078] In some embodiments, the number of bosses 202 of the conductive element 1032 in the motor stator 10 is determined by the number of phases of the motor 100.

[0079] The motor 100 involved in this application may be a stepper motor, servo motor, rotary motor or other type of motor, and there is no limitation herein.

[0080] The motor stator 10 provided in some embodiments of this application can be coupled to an external power source, and the conductive element 1032 supports the transmission of large current between the external power source and the external power source. The presence of the injection molded part 1031 can achieve insulation and withstand voltage, reducing the possibility of risks arising after overheating.

[0081] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A motor stator, characterized in that, The motor stator includes: Stator core; Stator windings are coupled to the stator core; The injection molding assembly includes an injection molded part and at least one conductive element. The at least one conductive element is disposed on the side of the injection molded part near the stator winding and coupled to the stator winding. The at least one conductive element is coupled to an external power source through the side of the injection molded part away from the stator winding, so as to supply power to the stator winding through the external power source. Each of the conductive elements supports the transmission of large currents.

2. The motor stator according to claim 1, characterized in that, The stator core, the stator winding, and the injection molding assembly are arranged sequentially along the first direction.

3. The motor stator according to claim 1, characterized in that, The injection molding assembly includes several through holes; The stator winding includes a plurality of pins, each pin extending along a first direction, and each pin passing through a corresponding through hole to couple to a conductive element in the injection-molded assembly.

4. The motor stator according to claim 3, characterized in that, The through hole is a PCB hole; each of the pins passes through the corresponding PCB hole to couple to the conductive component in the injection molding assembly.

5. The motor stator according to claim 1, characterized in that, The conductive element includes a conductive body and at least one boss, the at least one boss being used to couple to the external power source.

6. The motor stator according to claim 5, characterized in that, The cross-sectional shape of the conductive body is arc-shaped.

7. The motor stator according to claim 5, characterized in that, The injection molded part has at least one notch; All of the said bosses are provided corresponding to all of the said notches, and the bosses pass through the notches to couple to the external power source.

8. The motor stator according to any one of claims 1-7, characterized in that, The thickness of any one of the at least one conductive element is greater than 0.2 mm; and The thickness of any one of the at least one conductive element is less than or equal to 1 mm.

9. An electric motor, characterized in that, The motor includes: The motor stator according to any one of claims 1-8.

10. The motor according to claim 9, characterized in that, The conductive components in the motor stator are configured to correspond to the number of parallel branches of the motor.

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