motor

Abstract

The embodiment of the present application provides a motor, which comprises a first bus bar unit and a second bus bar unit, the first bus bar unit has a first bus bar holder and a first bus bar, the first bus bar comprises a first bus bar terminal, the second bus bar unit has a second bus bar holder and a second bus bar, the second bus bar comprises a second bus bar terminal, one of the first bus bar terminal and the second bus bar terminal is a first plate-shaped end part extending in the axial direction, the other end of the other one is a second plate-shaped end part extending in the axial direction, and the first plate-shaped end part and the second plate-shaped end part have different circumferential sizes and are in radial abutment. According to the embodiment of the present application, the connection reliability of the first bus bar terminal and the second bus bar terminal is ensured in the case that the circumferential connection position of the first bus bar terminal and the second bus bar terminal can be adjusted, and the axial miniaturization of the motor is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electromechanical, and in particular to a motor. BACKGROUND

[0002] Generally, the motor includes a bus bar unit including a metal bus bar and a resin bus bar holder holding the bus bar, and the electrical connection between the inside of the motor (e.g. coil) and the external power supply is achieved by the metal bus bar.

[0003] In some existing structures, the bus bar unit includes a first bus bar unit and a second bus bar unit, the bus bar of the first bus bar unit is electrically connected with the external power supply, the bus bar of the second bus bar unit is electrically connected with the inside of the motor, and one end of the first bus bar (which can be referred to as a first bus bar terminal) and one end of the second bus bar (which can be referred to as a second bus bar terminal) are electrically connected, for example, in some existing structures, the first bus bar terminal and the second bus bar terminal are abutted by components extending in the axial direction to achieve electrical connection.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical scheme of the present application and for the convenience of understanding by those skilled in the art. The above technical scheme cannot be considered as known to those skilled in the art only because it is described in the background section of the present application. SUMMARY

[0005] The inventor found that in the above existing structure, the abutting part of the first bus bar terminal and the second bus bar terminal has a size comparable in the circumferential direction, and in the case where the circumferential position of the second bus bar unit electrically connected with the inside of the motor is determined, the circumferential position of the second bus bar unit electrically connected with the external circuit is also determined, but the second bus bar unit often needs to be adjusted in the circumferential position to ensure accurate connection with the client product (including the external power supply), and thus in the case where the axial position of the second bus bar unit is adjusted, the circumferential connection position of the first bus bar terminal and the second bus bar terminal cannot be guaranteed, and the reliability of the connection cannot be ensured, in addition, in the case where the first bus bar terminal and the second bus bar terminal are abutted by components extending in the axial direction, the welding position is usually located on the side of the motor outside the axial direction of the abutting components, resulting in a larger axial space required for welding operation, which is not conducive to the axial miniaturization of the motor.

[0006] In order to solve at least one of the above problems or similar problems, the embodiments of the present application provide a motor, in the case where the connection position of the first bus bar terminal and the second bus bar terminal in the circumferential direction is adjustable, the connection reliability of the first bus bar terminal and the second bus bar terminal is ensured, and in addition, the axial miniaturization of the motor is achieved.

[0007] According to a first aspect of the embodiments of this application, a motor is provided, the motor including a first busbar unit and a second busbar unit, the second busbar unit being located on one axial side of the first busbar unit;

[0008] The first busbar unit has a first busbar holder and a first busbar held in the first busbar holder, the first busbar including a first busbar terminal exposed from the surface of the first busbar holder.

[0009] The second busbar unit has a second busbar holder and a second busbar held in the second busbar holder, the second busbar including a second busbar terminal exposed from the surface of the second busbar holder.

[0010] One of the first busbar terminal and the second busbar terminal is a first plate-shaped end extending axially, and the other end of the first busbar terminal and the second busbar terminal is a second plate-shaped end extending axially. The first plate-shaped end and the second plate-shaped end have different circumferential dimensions and abut against each other radially.

[0011] In one or more embodiments, the second busbar unit is located outside the motor cover, and the second busbar holder includes a bottom mounted on the motor cover and a power terminal portion extending axially from a portion of the outer periphery of the bottom, with the second busbar terminal exposed from the outer peripheral surface of the bottom.

[0012] In one or more embodiments, the first busbar terminal is disposed at one end of the first busbar, and the other end of the first busbar is connected to the coil lead wire inside the motor.

[0013] The second busbar terminal is located at one end of the second busbar, and the other end of the second busbar is connected to an external power source.

[0014] The first busbar unit is located inside the motor cover and the first busbar terminal protrudes from the motor cover and is connected to the second busbar terminal.

[0015] In one or more embodiments, the first busbar terminal forms the first plate-shaped end, the end of the second busbar terminal forms the second plate-shaped end, and the circumferential dimension of the second plate-shaped end is greater than the circumferential dimension of the first plate-shaped end.

[0016] In one or more embodiments, the number of the second busbar terminals exposed on the outer peripheral surface of the bottom is three, and the second plate-shaped ends of the three second busbar terminals are equally spaced in the circumferential direction.

[0017] In one or more embodiments, the second plate-shaped end extends circumferentially.

[0018] In one or more embodiments, the second plate-shaped end is located radially inside the first plate-shaped end.

[0019] In one or more embodiments, the second busbar terminal further includes a radially extending connecting portion, one end of which protrudes from the outer peripheral surface of the bottom, and the other end of which is connected to the second plate-shaped end, wherein the connecting portion and the first plate-shaped end are circumferentially spaced at a predetermined distance.

[0020] In one or more embodiments, at least one of the second plate-shaped ends of the second busbar terminals located on both sides of the power terminal portion is disposed at a position circumferentially away from the power terminal portion relative to the first plate-shaped end.

[0021] In one or more embodiments, the second busbar further includes a main body portion located within the bottom and a power connection terminal located within the power terminal portion, one end of the main body portion being connected to the second busbar terminal and the other end of the main body portion being connected to the power connection terminal.

[0022] The main body extends in a plane perpendicular to the axial direction, and the power connection terminal and the second plate-shaped end extend in a plane perpendicular to the radial direction.

[0023] One of the beneficial effects of the embodiments of this application is that the two plate-shaped ends that abut radially have different circumferential dimensions. Thus, when the relative positions of the first plate-shaped ends and the second plate-shaped ends in the circumferential direction are adjustable, the connection reliability between the first plate-shaped ends and the second plate-shaped ends can be ensured, and the connection reliability between the first busbar terminal and the second busbar terminal can be ensured. In addition, welding can be performed at any position in the axial direction where the two abut each other (such as the position close to the inner side of the motor in the axial direction). The axial space required for the welding operation is small, realizing the miniaturization of the motor axial direction.

[0024] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents. Attached Figure Description

[0025] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0026] Figure 1 This is a schematic diagram of a motor according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of a first busbar unit including embodiments of this application;

[0028] Figure 3 This is a schematic diagram of a first busbar unit according to an embodiment of this application;

[0029] Figure 4 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0030] Figure 5 This is yet another schematic diagram of a motor according to an embodiment of this application;

[0031] Figure 6 yes Figure 5 A schematic diagram of the second busbar unit of the motor shown. Detailed Implementation

[0032] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0033] In embodiments of this application, the term "and / or" includes any one and all combinations of one or more of the terms listed in association. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0034] In the embodiments of this application, the singular forms "a," "the," etc., may include the plural forms and should be broadly interpreted as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0035] Furthermore, in the following description of this application, for ease of explanation, the direction extending along or parallel to the central axis OO' of the motor is referred to as "axial direction"; the radial direction centered on the central axis OO' is referred to as "radial direction"; and the direction around the central axis OO' is referred to as "circumferential direction". However, it should be noted that these are only for ease of explanation and do not limit the orientation of the motor during use and manufacture.

[0036] The embodiments of this application will now be described with reference to the accompanying drawings.

[0037] This application provides a motor.

[0038] Figure 1 This is a schematic diagram of a motor according to an embodiment of this application; Figure 2 This is a schematic diagram of a first busbar unit including an embodiment of this application, showing the first busbar unit disposed in a motor; Figure 3 This is a schematic diagram of the first busbar unit in an embodiment of this application.

[0039] like Figures 1 to 3 As shown, the motor 10 includes a first busbar unit 11 and a second busbar unit 12, with the second busbar unit 12 located on one axial side (O side) of the first busbar unit 11. The first busbar unit 11 has a first busbar holder 111 and a first busbar 112 held in the first busbar holder 111 (see...). Figure 2 and Figure 3 The first busbar 112 includes a first busbar terminal 1121 exposed from the surface of the first busbar holder 111 (see...). Figure 2 and Figure 3 The second busbar unit 12 has a second busbar holder 121 and a second busbar 122 held in the second busbar holder 121. The second busbar 122 includes a second busbar terminal 1221 exposed from the surface of the second busbar holder 121.

[0040] like Figure 1As shown, one of the first busbar terminal 1121 and the second busbar terminal 1221 is a first plate-shaped end extending axially, and the other end of the first busbar terminal 1121 and the second busbar terminal 1221 is a second plate-shaped end extending axially. The first plate-shaped end and the second plate-shaped end have different circumferential dimensions and abut against each other radially.

[0041] In this embodiment, the first busbar terminal 1121 may be exposed at any position on the surface of the first busbar holder 111. For example, the first busbar terminal 1121 may be exposed from the radial outer periphery of the first busbar holder 111, but is not limited thereto. For example, the first busbar terminal 1121 may also be exposed from the axial end face of the first busbar holder 111. The second busbar terminal 1221 may be exposed at any position on the surface of the second busbar holder 121. For example, the second busbar terminal 1221 may be exposed from the axial end face of the second busbar holder 121, but is not limited thereto. The second busbar terminal 1221 may also be exposed from the radial outer periphery of the second busbar holder 121. This application does not impose any limitations on this, as long as the plate-shaped ends formed by the first busbar terminal 1121 and the second busbar terminal have different circumferential dimensions and abut in the radial direction, it can be set according to actual needs.

[0042] It is worth noting that, Figure 1 The diagram shows the first busbar terminal 1121 as a first plate-shaped end extending axially, and the second busbar terminal 1221 as a second plate-shaped end extending axially. However, this application is not limited to this; the second busbar terminal 1221 can be a first plate-shaped end extending axially, and the end of the first busbar terminal 1121 can be a second plate-shaped end extending axially, depending on actual needs. The following description uses the example of the first busbar terminal 1121 as a first plate-shaped end extending axially and the second busbar terminal 1221 as a second plate-shaped end extending axially.

[0043] As can be seen from the above embodiments of this application, the first busbar unit and the second busbar unit are connected by two plate-shaped ends with different circumferential dimensions abutting each other radially. Since the two plate-shaped ends have different circumferential dimensions, the relative positions of the first plate-shaped ends and the second plate-shaped ends in the circumferential direction can be adjusted, which can ensure the reliability of the connection between the first plate-shaped ends and the second plate-shaped ends, that is, ensure the reliability of the connection between the first busbar terminal 1121 and the second busbar terminal 1221.

[0044] Furthermore, in the existing case where the first busbar terminal and the second busbar terminal abut against each other through components that both extend axially, the abutment portion is axially close to the inner side of the motor, and the welding portion is located axially close to the outer side of the motor from the abutment portion. In this application, the first plate-shaped end and the second plate-shaped end with different circumferential dimensions abut against each other radially, and the abutment portion extends axially. Therefore, the welding portion can be located at a circumferentially offset position of the abutment portion. In other words, welding can be performed at any position axially where the first plate-shaped end and the second plate-shaped end abut against each other (such as a position axially close to the inner side of the motor 10, i.e., close to the axial O' side). The axial space required for the welding operation is smaller, which enables the miniaturization of the motor 10 axially.

[0045] In the embodiments of this application, the motor 10 can be of various types, and this application does not limit it. In addition, besides the first busbar unit 11 and the second busbar unit 12, the motor 10 may also include other components, such as the cover 13. Furthermore, it may also include components such as a housing, a rotating shaft, a stator, a rotor, and bearings, as can be found in related technologies.

[0046] In this embodiment, one of the first busbar unit 11 and the second busbar unit 12 can be electrically connected to internal components of the motor (such as coil leads), and the other can be electrically connected to an external power source. The following description uses the example of the first busbar unit 11 being electrically connected to internal components of the motor and the second busbar unit 12 being connected to an external power source.

[0047] like Figure 1 As shown, in one or more embodiments, the second busbar unit 12 is located outside the motor cover portion 13, the second busbar holder 121 includes a bottom 1211 mounted on the motor cover portion 13 and a power terminal portion 1212 extending axially from a portion of the outer periphery of the bottom 1211, and the second busbar terminal 1221 is exposed from the outer peripheral surface of the bottom 1211.

[0048] Thus, the second busbar unit 12, including the power terminal portion 1212, is located outside the motor cover portion 13, and the power terminal portion 1212 extends axially. This facilitates the adjustment of the circumferential position of the power terminal portion 1212 without interfering with other components of the motor 10 (such as the cover portion 13 or the housing). At the same time, the relative positions of the first plate-shaped terminal and the second plate-shaped terminal in the circumferential direction can be adjusted, which facilitates size management.

[0049] In one or more embodiments, one end of the first busbar 112 is provided with a first busbar terminal 1121, and the other end of the first busbar 112 is connected to the coil lead wire inside the motor. One end of the second busbar 122 is provided with a second busbar terminal 1221, and the other end of the second busbar 122 is connected to an external power supply. The first busbar unit 11 is located inside the motor cover 13, and the first busbar terminal 1121 protrudes from the motor cover 13 and is connected to the second busbar terminal 1221. In other words, the first busbar terminal 1121 and the second busbar terminal 1221 are connected on the outside of the motor cover 13.

[0050] Thus, the first busbar terminal 1121 of the first busbar unit 11 located inside the motor cover 13 is exposed outside the motor cover 13. For the second busbar unit 12 located outside the motor cover 13, the second busbar terminal 1221 of the second busbar unit 12 can be connected to the first busbar terminal 1121 of the first busbar unit 11 on the outside of the motor cover 13. Therefore, the second busbar unit 12 located outside the motor cover 13 is easy to adjust in circumferential position.

[0051] However, this application is not limited to this. For example, the first busbar unit and the second busbar unit may both be located inside the motor cover. When connecting the first busbar unit and the second busbar unit, the relative positions of the first plate-shaped end and the second plate-shaped end in the circumferential direction can be adjusted, and the connection reliability between the first plate-shaped end and the second plate-shaped end can be ensured, which is beneficial to the axial miniaturization of the motor. After the assembly and welding of the first busbar unit and the second busbar unit are completed, the motor cover can be assembled so that the cover covers the first busbar unit and the second busbar unit.

[0052] like Figure 1 As shown, in one or more embodiments, the number of second busbar terminals 1221 exposed on the outer peripheral surface of the bottom 1211 is three, but this application is not limited to this. For example, the number of second busbar terminals 1221 may also be six or other values.

[0053] In this embodiment, the second plate-shaped ends 1222 of the plurality of second busbar terminals 1221 are equally spaced in the circumferential direction. This ensures the spacing between adjacent second plate-shaped ends 1222 and prevents interference. However, this application is not limited to this; the plurality of second plate-shaped ends 1222 may also be unequally spaced in the circumferential direction, as needed.

[0054] Figure 4 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0055] like Figure 4As shown, in one or more embodiments, the first busbar terminal 1121 forms a first plate-shaped end 1122, and the end of the second busbar terminal 1221 forms a second plate-shaped end 1222. The circumferential dimension d1 of the second plate-shaped end 1222 is greater than the circumferential dimension d2 of the first plate-shaped end 1122.

[0056] Even if the first busbar unit 11 and the second busbar unit 12 move relative to each other in the circumferential direction, the entire surface of the first plate-shaped end 1122 near the second plate-shaped end 1222 can be in radial contact with the second plate-shaped end 1222, thereby achieving a reliable connection between the first plate-shaped end 1122 and the second plate-shaped end 1222. Furthermore, by making the first plate-shaped end 1122 protruding from the motor cover 13 have a smaller size, the hole on the motor cover 13 for the protrusion of the first plate-shaped end 1122 can also have a smaller size, facilitating the forming of the motor cover 13. However, this application is not limited to this; the circumferential dimension of the first plate-shaped end 1122 may also be larger than the circumferential dimension of the second plate-shaped end 1222.

[0057] like Figure 4 As shown, in one or more embodiments, the second plate-shaped end 1222 extends circumferentially. Therefore, a reliable connection between the first plate-shaped portion 1122 and the second plate-shaped portion 1222 can be ensured when the first plate-shaped portion 1122 and the second plate-shaped portion 1222 rotate relative to each other in the circumferential direction.

[0058] In other words, the second plate-shaped end 1222 is a plate that extends both axially and circumferentially, and the circumferential dimension of the second plate-shaped end 1222 can be greater than its axial dimension. The first plate-shaped end 1221 is a plate that extends axially, and the axial dimension of the first plate-shaped end 1221 can be greater than its circumferential dimension. The first plate-shaped end 1221 and the second plate-shaped end 1222 are configured to cross and abut against each other, thereby facilitating the full adjustment of the circumferential position of the power terminal part while ensuring the circumferential connection position of the first busbar unit and the second busbar unit.

[0059] like Figure 4 As shown, in one or more embodiments, the second busbar terminal 1221 further includes a radially extending connecting portion 1223. One end of the connecting portion 1223 protrudes from the outer peripheral surface of the bottom 1211, and the other end of the connecting portion 1223 is connected to the second plate-shaped end 1222. The connecting portion 1223 and the first plate-shaped end 1122 are circumferentially spaced at a predetermined distance. Thus, the circumferential relative position of the first busbar unit 11 and the second busbar unit 12 can be sufficiently adjusted by the predetermined circumferential distance between the connecting portion 1223 and the first plate-shaped end 1122.

[0060] like Figure 4In one or more embodiments, the second busbar terminal 1221 may further include an adapter 1224, which extends axially and circumferentially, with one circumferential end connected to the second plate-shaped end 1222 and one axial end (O' end) connected to the connecting portion 1223.

[0061] However, this application is not limited to this. For example, the adapter 1224 is not necessary. For instance, when the connecting portion 1223 extends radially and axially, one radially outer end of the connecting portion 1223 can be directly connected to the second plate-shaped end 1222 extending axially and circumferentially. In other words, the second busbar terminal 1221 can be a plate-shaped component extending axially and radially, with its end bent circumferentially to make its end become the second plate-shaped end 1222 extending axially and circumferentially. This can be selected according to actual needs.

[0062] like Figure 1 As shown, in one or more embodiments, at least one of the second plate-shaped ends 1222 of the second busbar terminals 1221 located on both sides of the power terminal portion 1212 are disposed at a position circumferentially away from the power terminal portion relative to the first plate-shaped end 1221.

[0063] In other words, the power terminal portion 1212 is located circumferentially between the two second plate-shaped ends 1222, such as Figure 1 The power terminal portion 1212 shown is located circumferentially between the second plate-shaped ends 1222a and 1222b, and at least one of the second plate-shaped ends 1222a and 1222b is disposed at a position circumferentially away from the power terminal portion 1212 relative to the first plate-shaped end 1221, such as... Figure 1 The diagram shows the second plate-shaped end 1222a being circumferentially away from the electrical connection terminal 1212 relative to the first plate-shaped end 1221. That is, the second plate-shaped end 1222a is located circumferentially between the power terminal portion 1212 and the connection portion 1223.

[0064] Therefore, sufficient adjustment space can be reserved for the power terminal portion 1212 in the circumferential direction to avoid interference during assembly or welding. For example, sufficient space can be reserved for the second plate-shaped end portion 1222a and the power terminal portion 1212 for operations such as circumferential position adjustment, assembly, and welding.

[0065] It is worth noting that, Figure 1The diagram shows the second plate-shaped end portion 1222a located circumferentially between the power terminal portion 1212 and the connecting portion 1223. However, this application is not limited to this; the second plate-shaped end portion 1222b may also be located circumferentially between the power terminal portion 1212 and the connecting portion 1223 belonging to the same second busbar terminal 1221 as the second plate-shaped end portion 1222b. This can be configured according to actual conditions, for example, it can be determined based on the circumferential distance between the power terminal portion 1212 and the first plate-shaped end portion 1121, such as... Figure 1 The diagram shows that the circumferential distance between the first plate-shaped end 1121, which is connected to the second plate-shaped end 1222a, and the power terminal portion 1212 is small. Therefore, the second plate-shaped end 1222a is positioned circumferentially between the power terminal portion 1212 and the connecting portion 1223.

[0066] In one or more embodiments, the second busbar 122 further includes a main body portion located within the bottom 1211 and a power connection terminal located at the power terminal portion 1212. One end of the main body portion is connected to the second busbar terminal 1221, and the other end of the main body portion is connected to the power connection terminal. The main body portion extends in a plane perpendicular to the axial direction, that is, the main body portion is plate-shaped, and the plate-shaped surface is parallel to the horizontal plane. The power connection terminal and the second plate-shaped end 1222 extend in a plane perpendicular to the radial direction.

[0067] Thus, the main body extends along the horizontal plane, and the power connection terminals and the second plate-shaped ends 1222 at both ends of the main body are perpendicular to the radial direction. The axial dimension of the bottom 1211 is small, which is beneficial for the axial miniaturization of the motor, and the second busbar 122 is easy to form. However, this application is not limited to this. The extension direction of the second busbar 122 within the second busbar holder 121 can also be in other ways. For example, the main body can extend in a plane or curved surface parallel to the axial direction, and the power connection terminals can extend in a plane perpendicular to the axial direction. It can be selected according to actual needs, as long as the ends of the second busbar terminals 1221 exposed from the surface of the second busbar holder 121 have second plate-shaped ends 1222 extending axially.

[0068] Figure 5 This is yet another schematic diagram of a motor according to an embodiment of this application. Figure 6 yes Figure 5 A schematic diagram of the second busbar unit of the motor shown.

[0069] like Figure 5 As shown, in one or more embodiments, the second plate-shaped end 1222 is located radially inside the first plate-shaped end 1122. Therefore, the second busbar terminal 1221 protruding from the second busbar holder 121 can have a smaller radial dimension, such as compared to... Figure 1 The connecting part 1223 shown in the figure, Figure 6The radial portion of the connecting part 1223' can have a smaller size, which can save material. In the embodiments of this application, the connecting part 1223' is not necessary. For example, the second plate-shaped end 1222 can be a plate-shaped component that protrudes from the surface of the second busbar holder 121 and extends circumferentially, which can further save material.

[0070] However, this application is not limited to this, for example, such as Figure 1 As shown, the second plate-shaped end 1222 may also be located radially outside the first plate-shaped end 1122, and can be selected according to actual needs.

[0071] In this embodiment, the first busbar 112 can be electrically connected to an external power source, and the second busbar 122 can be electrically connected to the interior of the motor, such as coils or internal circuits. The electrical connection between the internal and external power sources of the motor is achieved through the electrical connection of the first busbar terminal 1121 and the second busbar terminal 1221. This application does not limit the electrical connection method between the first busbar 112 and the external power source, or the electrical connection method between the second busbar 122 and the interior of the motor; reference can be made to related technologies.

[0072] In this embodiment, the motor 10 can be applied to various electrical products, such as various devices or equipment, including various household appliances, office automation equipment, industrial equipment, vehicle-mounted devices, or components in various devices.

[0073] As can be seen from the above embodiments of this application, the first busbar unit and the second busbar unit are connected by two plate-shaped ends with different circumferential dimensions abutting each other radially. Since the two plate-shaped ends have different circumferential dimensions, the relative positions of the first plate-shaped ends and the second plate-shaped ends in the circumferential direction can be adjusted, which can ensure the reliability of the connection between the first plate-shaped ends and the second plate-shaped ends, that is, ensure the reliability of the connection between the first busbar terminal 1121 and the second busbar terminal 1221.

[0074] The present application has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present application. Appropriate modifications can be made based on the above embodiments. Furthermore, the motors of the embodiments of the present application have been described above from different perspectives through different embodiments. The above embodiments can be combined arbitrarily, and the description is omitted here. Those skilled in the art can make various modifications and variations to the present application based on the spirit and principles of the present application, and these modifications and variations are also within the scope of the present application.

[0075] Preferred embodiments of this application have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of this application are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

Claims

1. A motor, the motor comprising a first busbar unit and a second busbar unit, the second busbar unit being located on one axial side of the first busbar unit; The first busbar unit has a first busbar holder and a first busbar held in the first busbar holder, the first busbar including a first busbar terminal exposed from the surface of the first busbar holder. The second busbar unit has a second busbar holder and a second busbar held in the second busbar holder, the second busbar including a second busbar terminal exposed from the surface of the second busbar holder. Its features are, One of the first busbar terminal and the second busbar terminal is a first plate-shaped end extending axially, and the other end of the first busbar terminal and the second busbar terminal is a second plate-shaped end extending axially. The first plate-shaped end and the second plate-shaped end have different circumferential dimensions and abut against each other radially.

2. The motor according to claim 1, characterized in that, The second busbar unit is located outside the motor cover. The second busbar holder includes a bottom mounted on the motor cover and a power terminal portion extending axially from a portion of the outer periphery of the bottom. The second busbar terminal is exposed from the outer peripheral surface of the bottom.

3. The motor according to claim 2, characterized in that, The first busbar terminal is located at one end of the first busbar, and the other end of the first busbar is connected to the coil lead wire inside the motor. The second busbar terminal is located at one end of the second busbar, and the other end of the second busbar is connected to an external power source. The first busbar unit is located inside the motor cover and the first busbar terminal protrudes from the motor cover and is connected to the second busbar terminal.

4. The motor according to claim 3, characterized in that, The first busbar terminal forms the first plate-shaped end, and the end of the second busbar terminal forms the second plate-shaped end, wherein the circumferential dimension of the second plate-shaped end is greater than the circumferential dimension of the first plate-shaped end.

5. The motor according to claim 4, characterized in that, The number of second busbar terminals exposed on the outer peripheral surface of the bottom is three, and the second plate-shaped ends of the three second busbar terminals are equally spaced in the circumferential direction.

6. The motor according to claim 4, characterized in that, The second plate-shaped end extends circumferentially.

7. The motor according to claim 6, characterized in that, The second plate-shaped end is located radially inside the first plate-shaped end.

8. The motor according to claim 6, characterized in that, The second busbar terminal also includes a radially extending connecting portion, one end of which protrudes from the outer peripheral surface of the bottom, and the other end of which is connected to the second plate-shaped end. The connecting portion and the first plate-shaped end are circumferentially spaced at a predetermined distance.

9. The motor according to claim 8, characterized in that, At least one of the second plate-shaped ends of the second busbar terminals located on both sides of the power terminal portion is disposed at a position circumferentially away from the power terminal portion relative to the first plate-shaped end connection portion.

10. The motor according to claim 3, characterized in that, The second busbar also includes a main body located within the bottom and a power connection terminal located in the power terminal section. One end of the main body is connected to the second busbar terminal, and the other end of the main body is connected to the power connection terminal. The main body extends in a plane perpendicular to the axial direction, and the power connection terminal and the second plate-shaped end extend in a plane perpendicular to the radial direction.

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