Outgoing line copper bar, stator assembly and motor

Abstract

The embodiment of the utility model discloses a wire outlet copper bar, a stator assembly and a motor, and relates to the technical field of motor stators. The outgoing line copper bar comprises a body part and an outgoing line part. The wire outlet part comprises a connecting section and a supporting lug section, the connecting section is configured to be connected with the wire outlet wire, the top of the supporting lug section is connected to the side of the connecting section, and the bottom of the supporting lug section is connected with the body part; wherein the bottom of the support lug section is not higher than the bottom of the connecting section, so that the height difference of the wire outlet part is reduced. According to the outgoing line copper bar, the connecting section and the body part are tightly connected through the supporting lug section of the bending structure, so that the space requirement of the copper bar in the vertical direction (namely the axial direction) is smaller, the space layout in a stator assembly or a motor is optimized, and the design requirement of a high-efficiency motor or compact equipment is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor stator technical field, especially out of line copper bar, stator assembly and motor. BACKGROUND

[0002] Copper bar is an important conductive element, which is used for realizing the transmission and distribution of electric energy. Especially in the stator assembly, the copper bar is used for connecting the winding and the power supply circuit, so that the current of the power supply can be stably delivered to the winding, thereby generating a magnetic field in the stator, and further driving the motor to operate.

[0003] As shown in Figure 1 The connection mode of the copper bar in the related art is to directly connect the connecting section with the outgoing wire, and then introduce the bending part from the bottom of the connecting section, and connect the body part of the copper bar through the bending setting of the bending part. It can ensure the stability of electrical connection, but it has the defect of large axial height difference, which cannot reduce the axial height of the copper bar, and is not conducive to improving the space utilization. SUMMARY

[0004] In view of the above shortcomings of the prior art, the utility model aims to provide an outgoing copper bar, a stator assembly and a motor. The outgoing copper bar can be arranged through the arrangement of the lug section, so that it is not necessary to extend outwardly and bend from the bottom of the connecting section, thereby reducing the axial height of the outgoing part while ensuring the close connection between the connecting section and the outgoing wire, thereby leaving sufficient axial space and improving the space utilization of the outgoing copper bar.

[0005] The utility model embodiment discloses an outgoing copper bar for connecting outgoing wire, comprising:

[0006] The body part;

[0007] The outgoing part comprises a connecting section and a lug section. The connecting section is configured to connect the outgoing wire. The top of the lug section is connected to the side of the connecting section, and the bottom of the lug section is connected to the body part.

[0008] Wherein, the bottom of the lug section is not higher than the bottom of the connecting section, so as to reduce the height difference of the outgoing part.

[0009] Further, the bottom of the lug section and the bottom of the connecting section are located on the same horizontal height plane.

[0010] Further, the connecting section is a straight line structure.

[0011] Further, the lug section is a bending structure.

[0012] Further, the number of the lug sections is two, the two lug sections are connected to the two sides of the connecting section respectively, and the bottoms of the two lug sections are connected to the body section simultaneously.

[0013] Further, the wire outlet section further comprises a transition section, through which the top of the lug section is connected to the top of the connecting section, and the extension direction of the transition section is perpendicular to the extension direction of the connecting section.

[0014] Further, the number of the transition sections is two, the two transition sections are arranged on the two sides of the connecting section respectively to form a block structure with a cross section of T type in cooperation with the connecting section, and the lug section and the connecting section have an accommodation gap.

[0015] The utility model embodiment further discloses a stator assembly comprising a plurality of the wire outlet copper bars, and further comprising a winding structure, the winding structure comprising a plurality of wire layers arranged in staggered layers from inside to outside, a plurality of the wire outlet wires are arranged in the wire layer on the inside, and part of the wire outlet wires are connected to different connecting sections respectively.

[0016] Further, the stator assembly further comprises a neutral copper bar, the wire outlet copper bars and the neutral copper bar are arranged in staggered layers along the axial direction, and the other part of the wire outlet wires are connected to the neutral copper bar respectively.

[0017] Further, the neutral copper bar comprises a ring connecting section and a side welding section connected to each other, the side welding section comprises a first bending section, the first bending section is arranged in a bent manner along the ring direction, and the free end of the first bending section can be welded to the wire outlet wire on the side to form a shape, so as to reduce the ring space envelope.

[0018] Further, the side welding section further comprises a second bending section, the second bending section is arranged in a bent manner outward along the axial direction, and the two ends of the second bending section are connected to the ring connecting section and the first bending section respectively.

[0019] Further, the side welding section further comprises a third bending section, the third bending section is arranged in a bent manner inward along the axial direction, and the two ends of the third bending section are connected to the ring connecting section and the first bending section respectively, so that the wire outlet section can extend outward along the radial direction.

[0020] Further, the third bending section and the ring connecting section are located in the same ring plane.

[0021] The utility model embodiment further discloses a motor comprising the wire outlet copper bar and / or the stator assembly.

[0022] The outgoing copper bar has the following beneficial effects, including but not limited to:

[0023] The outgoing copper bar can be arranged through the lug section, so that it does not need to be bent outwardly and extended from the bottom of the connecting section, thereby reducing the axial height of the outgoing portion while ensuring that the connecting section is tightly connected with the outgoing wire, thereby leaving sufficient axial space and improving the space utilization of the outgoing copper bar. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present specification will be further illustrated in the form of exemplary embodiments, which will be described in detail with reference to the drawings. These embodiments are not restrictive, and in these embodiments, the same numbers represent the same structures, wherein:

[0025] Figure 1 A schematic diagram of the outgoing copper bar provided by the related art;

[0026] Figure 2 A structural schematic diagram of the outgoing copper bar provided by the present embodiment;

[0027] Figure 3 A structural schematic diagram of the outgoing portion provided by the present embodiment;

[0028] Figure 4 A structural schematic diagram of the stator assembly provided by the present embodiment;

[0029] Figure 5 Another structural schematic diagram of the stator assembly provided by the present embodiment;

[0030] Figure 6 A structural schematic diagram of the neutral copper bar provided by the present embodiment.

[0031] Icon: 100-stator assembly; 102-outgoing wire; 20-neutral copper bar; 201-ring connection portion; 202-side welding portion; 2021-first bending section; 2022-second bending section; 2023-third bending section; 21-outgoing copper bar; 211-body portion; 212-outgoing portion; 2121-connecting section; 2122-lug section; 2123-transition section; 2124-accommodation gap. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and functions of the present application from the content disclosed in the specification. The present application can also be implemented or applied in other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following examples and features in the examples can be combined with each other without conflict.

[0033] It should be noted that the diagrams provided in the following examples only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the diagrams, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the component layout pattern can also be more complex.

[0034] Please refer to Figure 1 The connection mode of the outgoing copper bar in the related art is to connect the connecting section directly with the outgoing wire, and then introduce the bending part from below the connecting section, and connect the body part of the copper bar through the bending of the bending part. It can ensure the stability of electrical connection, but it has the defect of large axial height difference, which cannot reduce the axial height of the copper bar, and is not conducive to improving the space utilization of the product.

[0035] Please refer to Figure 2 and Figure 3 The present application provides an outgoing copper bar 21 for connecting outgoing wires 102, which comprises a body part 211 and an outgoing part 212. The outgoing part 212 comprises a connecting section 2121 and a lug section 2122. The connecting section 2121 is configured to connect the outgoing wire 102, the top of the lug section 2122 is connected to the side of the connecting section 2121, and the bottom of the lug section 2122 is connected to the body part 211. The bottom of the lug section 2122 is not higher than the bottom of the connecting section 2121, so as to reduce the height difference of the outgoing part 212.

[0036] It should be noted that the lug section 2122 of the bending structure tightly connects the connecting section 2121 and the body part 211, so that the copper bar requires less space in the vertical direction (i.e. axial direction), which helps to optimize the space layout inside the stator assembly 100 or inside the motor, and meets the design requirements of high-efficiency motors or compact equipment.

[0037] It is worth mentioning that, as shown in the figure, the connecting section 2121 in the embodiment is a straight strip structure, and the lug section 2122 is a bent structure. According to different specific implementation environments, the connecting section can also be other shapes, for example, a strip structure with a corrugated surface or an arc section structure with a certain bending, etc. At the same time, the lug section can also be a strip structure arranged obliquely or a chamfered structure, etc. The embodiment does not constitute a limitation on the specific structure type of the connecting section and the lug section, but is only an example of the structure. As long as the connecting section can play a role in closely connecting the outgoing wire, and the lug section can play a role in connecting the body part and the connecting section at the same time and reducing the height difference of the outgoing part.

[0038] In the embodiment, the bottom of the lug section 2122 and the bottom of the connecting section 2121 are located on the same horizontal height plane. It can be understood that the bottom of the lug section 2122 and the connecting section 2121 are on the same horizontal height plane, which makes the installation process of the outgoing copper bar 21 more convenient, does not need to adjust the height difference of the connecting part, helps to improve the installation efficiency, and reduces the steps and time of manual adjustment. At the same time, the design of the same horizontal plane avoids the concentration of mechanical stress caused by the height difference, makes the stress of the copper bar more evenly distributed at the connecting part, further reduces the influence of vibration on the connecting part, and ensures the stability and firmness of the electrical connection.

[0039] Please refer to Figure 2 and Figure 3 , the number of the lug section 2122 is two, the two lug sections 2122 are connected to the two sides of the connecting section 2121 respectively, and the bottoms of the two lug sections 2122 are connected to the body part 211 at the same time.

[0040] It is worth mentioning that the two lug sections 2122 are symmetrically distributed on the two sides of the connecting section 2121, so that the copper bar forms a symmetrical support structure at the connecting part, effectively disperses and evenly distributes mechanical stress, enhances the overall stability and impact resistance, and avoids the inclination or deviation phenomenon that may be caused by single-sided support. At the same time, the symmetrical double lug design can effectively absorb vibrations and impact forces from all directions, making the copper bar connection more stable, especially suitable for motors in high-frequency or high-load working environments, reducing the fatigue damage of the copper bar and the stator assembly 100 caused by vibration, and prolonging the service life.

[0041] In the embodiment, the outgoing part 212 also includes a transition section 2123, through which the top of the lug section 2122 is connected to the top of the connecting section 2121, and the extension direction of the transition section 2123 is perpendicular to the extension direction of the connecting section 2121. It can be understood that by increasing the transition section 2123, the connection position and angle of the lug section 2122 and the connecting section 2121 are optimized, and position deviation or interference will not be caused by direct connection.

[0042] Specifically, the number of the transition sections 2123 is two, and the two transition sections 2123 are arranged on both sides of the connecting section 2121 respectively to form a block structure with a cross section of "T" type in cooperation with the connecting section 2121, and the lug section 2122 has an accommodation gap 2124 with the connecting section 2121.

[0043] Please refer to Figures 4-6 , the embodiment also provides a stator assembly 100. The stator assembly 100 comprises a plurality of outgoing copper bars 21 as described above, and further comprises a winding structure, the winding structure comprises a plurality of wire layers arranged in layers from inside to outside, and a plurality of outgoing wires 102 are arranged in the wire layer located on the inside, and part of the outgoing wires 102 are connected with different connecting sections 2121 respectively.

[0044] In the embodiment, the stator assembly 100 further comprises a neutral copper bar 20, and the outgoing copper bars 21 and the neutral copper bar 20 are arranged in layers along the axial direction, and another part of the outgoing wires 102 are connected with the neutral copper bar 20 respectively. It can be understood that the axial direction, the radial direction and the circumferential direction (the circumferential direction) in the embodiment can refer to the directions shown in Figure 4 .

[0045] It is worth noting that the outgoing copper bars 21 form a cross-connection structure with the neutral copper bar 20, which can reduce the axial height of the two side copper bars and increase the versatility of the stator assembly 100.

[0046] As shown in Figure 6 , the neutral copper bar 20 comprises a circumferential connecting portion 201 and a side welding portion 202 connected with each other, the side welding portion 202 comprises a first bending section 2021, the first bending section 2021 is arranged in a bending manner along the circumferential direction, and the free end of the first bending section 2021 can be welded with the outgoing wire 102 on the side to form a shape, so as to reduce the circumferential space envelope.

[0047] Optionally, the side welding portion 202 further comprises a second bending section 2022, the second bending section 2022 is arranged in a bending manner along the axial direction outward, and the two ends of the second bending section 2022 are connected with the circumferential connecting portion 201 and the first bending section 2021 respectively.

[0048] It is worth noting that the neutral copper bar 20 adopts circumferential bending twice, realizes the angle connection of the circumferential connecting portion 201 and the side welding portion 202, so as to reduce the circumferential space envelope; at the same time, due to the circumferential bending of the side welding portion 202, the neutral copper bar 20 can be arranged in a staggered manner, so as to reduce the axial welding height of the neutral copper bar 20 and increase the structural stability.

[0049] In another embodiment of the present embodiment, as shown in Figure 4 The edge side welding portion 202 further comprises a third bending section 2023 which is bent inwardly along the axial direction, and the two ends of the third bending section 2023 are connected with the annular connecting portion 201 and the first bending section 2021 respectively, so that the outgoing line portion 212 can extend outwardly along the radial direction. It can be understood that this arrangement can further reduce the annular and axial heights of the two edges.

[0050] In another embodiment of the present embodiment, as shown in Figure 5 The third bending section 2023 and the annular connecting portion 201 are located in the same annular plane. It can be understood that adjusting the bending direction of the third bending section 2023 to be annular bending and locating the third bending section 2023 and the annular connecting portion 201 in the same annular plane can further reduce the annular envelope of the three-phase connector.

[0051] The present embodiment further comprises an electric machine comprising the outgoing copper bar 21 as described above, and / or the stator assembly 100 described above, and has all the beneficial effects thereof.

[0052] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present application should be covered by the claims of the present application.

[0053] In the description herein, many specific details are provided, such as examples of components and / or methods, to provide a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that embodiments of the present application can be practiced without one or more of the specific details, or with other devices, systems, assemblies, methods, components, materials, parts, and / or the like. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail in order to avoid obscuring aspects of embodiments of the present application.

[0054] References in the specification to "one embodiment," "an embodiment," or "the

[0055] It is also to be understood that one or more of the elements illustrated in the drawings, alone or in combination, can also be implemented in a more separated or more integrated manner. In addition, even though an embodiment can be available for implementation, alterations, permutations or the like of elements can occur depending on matter of design, manufacture and the like within the scope of the application.

[0056] In addition, any arrow in the drawings should not be deemed as limiting the disclosed embodiments. Moreover, unless specifically stated otherwise, the term "or" as used herein should be interpreted as "and / or," and the term "excludes" should be interpreted as "does not include." In addition, the use of "a" or "an" are employed to describe classes of embodiments and should be interpreted as "one or more" unless otherwise indicated.

[0057] As used in the description and the appended claims, the singular forms "a," "an," and "the" include plural referents unless otherwise indicated. Similarly, as used in the description and the appended claims, the term "in" includes "in" and "on" unless otherwise indicated.

[0058] The above description of the disclosed embodiments (including that in the summary) is not intended to be exhaustive or to limit the application to the precise forms disclosed. While specific embodiments of, and examples for, the application are described herein for illustrative purposes, various equivalent modifications are possible within the spirit and scope of the application, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications can be made to the application in light of the foregoing description of the described embodiments of the application and the examples without departing from the spirit and scope of the application. It is to be understood that the role of the claims' appended hereto is merely to particularly point out the applications and that they can be written to include all modifications and alterations in the application falling within the spirit and scope of the applications.

[0059] The systems and methods have been described generally herein as facilitating an understanding of the details of the application. Also, various specific details have been given for providing a thorough understanding of embodiments of the application. However, a person of ordinary skill in the relevant art will realize that the application can be practiced without one or more of the specific details or with other apparatus, systems, assemblies, methods, components, materials, parts, and the like. In other instances, well-known structures, materials, and / or operations have not been shown or described in detail to avoid obscuring aspects of embodiments of the application.

Claims

1. An outgoing copper bus for connecting outgoing conductors, characterized by, Comprising: a body part; a wire-out part comprising a connecting segment and a lug segment, the connecting segment is configured to connect the wire-out wire, the top of the lug segment is connected to the side of the connecting segment, and the bottom of the lug segment is connected to the body part; wherein the bottom of the lug segment is not higher than the bottom of the connecting segment, so as to reduce the height difference of the wire-out part.

2. The outgoing copper bus of claim 1, wherein, The bottom of the lug segment and the bottom of the connecting segment are located in the same horizontal height plane.

3. The outgoing copper bus of claim 1, wherein, The connecting segment is a straight line structure.

4. The outlet copper bar according to claim 1, characterized in that, The lug segment is a bent structure.

5. The outlet copper bar according to claim 1, characterized in that, The number of lug segments is two, and the two lug segments are respectively connected to the two sides of the connecting segment, and the bottoms of the two lug segments are connected to the body part at the same time.

6. The outlet copper bar according to claim 1, characterized in that, The wire-out part further comprises a transition segment, through which the top of the lug segment is connected to the top of the connecting segment, and the extension direction of the transition segment is perpendicular to the extension direction of the connecting segment.

7. The outgoing copper bus of claim 6, wherein, The number of transition segments is two, and the two transition segments are respectively arranged on the two sides of the connecting segment to form a block structure with a "T" cross section in cooperation with the connecting segment, and the lug segment and the connecting segment have an accommodation gap therebetween.

8. A stator assembly comprising a plurality of outgoing busbars as claimed in any one of claims 1 to 7, characterised in that, Further comprising a winding structure, the winding structure comprises a plurality of wire layers arranged in layers from inside to outside, and the wire layer located on the inside has a plurality of wire-out wires, wherein part of the wire-out wires are respectively connected to different connecting segments.

9. The stator assembly of claim 8, wherein, The stator assembly further comprises a neutral copper bar, and the wire-out copper bar and the neutral copper bar are arranged in layers in the axial direction, and another part of the wire-out wires are respectively connected to the neutral copper bar.

10. The stator assembly of claim 9, wherein, The neutral copper bar comprises a ring connecting part and a side welding part connected to each other, the side welding part comprises a first bent segment, the first bent segment is arranged in a bent manner along the ring direction, and the free end of the first bent segment can be welded with the wire-out wire on the side to form a shape, so as to reduce the ring space envelope.

11. The stator assembly of claim 10, wherein, The side welding part further comprises a second bent segment, the second bent segment is arranged in a bent manner outward along the axial direction, and the two ends of the second bent segment are respectively connected to the ring connecting part and the first bent segment.

12. The stator assembly of claim 10, wherein, The side welding part further comprises a third bent segment, the third bent segment is arranged in a bent manner inward along the axial direction, and the two ends of the third bent segment are respectively connected to the ring connecting part and the first bent segment, so that the wire-out part can extend outward along the radial direction.

13. The stator assembly of claim 12, wherein, The third bent segment and the ring connecting part are located in the same ring plane.

14. An electric machine characterized by The wire-out copper bar as claimed in any one of claims 1-7, and / or the stator assembly as claimed in any one of claims 8-13.

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