Power supply and motor assembly

Abstract

An embodiment of the present application provides a power supply component and a motor assembly, wherein the power supply component comprises: a brush disk portion, a connector portion, and a bus bar, wherein the bus bar comprises: a flat plate portion, wherein the flat plate portion is arranged on the brush disk portion, wherein one end of the flat plate portion is connected to a noise reduction element, wherein the minimum dimension of the flat plate portion along the axial direction is smaller than the minimum dimension perpendicular to the axial direction; and a vertical plate portion, wherein the vertical plate portion is connected to the flat plate portion and extends radially outward from the brush disk portion, wherein at least a portion of the vertical plate portion is arranged on the connector portion, wherein the minimum dimension of the vertical plate portion perpendicular to the axial direction is smaller than the minimum dimension along the axial direction, and the direction of the minimum dimension of the vertical plate portion perpendicular to the axial direction arranged on the connector portion is perpendicular to the protruding direction of the connector portion relative to the brush disk portion.

Description

Technical Field

[0001] The present application relates to the field of electromechanics, and in particular to a power supply component and a motor assembly. Background Art

[0002] Conventionally, brushed motors have been widely used as driving sources for window devices or sunroof devices installed in vehicles. In addition to a pair of brushes, brushed motors are also equipped with noise prevention elements, so that electromagnetic noise generated from the sliding contact between the brushes and the commutator when the brushes are energized can be suppressed by the noise prevention elements.

[0003] The noise prevention element may be, for example, a choke coil, one end of which is connected to the brush and the other end of which is connected to a bus bar, wherein the bus bar can supply power to the brush motor from an external power source.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0005] The inventors of the present application have discovered that the existing busbars have some structural limitations. For example, in some technical solutions, the side of the busbar that is connected to the external power supply is in the shape of a plate. Therefore, the busbar is relatively large in the lateral direction parallel to the surface of the brush plate. In particular, when multiple busbars are arranged in the lateral direction, it is difficult to achieve miniaturization of the motor. In addition, if the busbar is in the shape of a vertical plate as a whole, poor connection may occur when the vertical plate-shaped busbar is electrically connected to other components.

[0006] In order to solve at least one of the above problems or other similar problems, an embodiment of the present application provides a power supply component and a motor assembly, in which the power supply component is provided with a portion of the bus bar extending radially outside the brush plate as a vertical plate portion. Thus, the lateral dimension of the bus bar is reduced radially outside the brush plate, which is beneficial to the miniaturization of the motor assembly.

[0007] According to one aspect of an embodiment of the present application, a power supply component is provided, wherein the power supply component is arranged between a motor housing and a gear box, wherein the motor housing is cylindrical and contains a motor, wherein the motor has a rotating shaft, and the gear box contains a gear and the rotating shaft.

[0008] The power supply component has:

[0009] A brush plate portion, the brush plate portion accommodating brushes for supplying power to the motor and noise reduction elements connected to the brushes, the brush plate portion being embedded in the motor housing;

[0010] a connector portion protruding radially outward from the brush plate portion; and

[0011] a bus bar connected between the brush plate portion and an external power source,

[0012] The bus bar has:

[0013] a flat plate portion, the flat plate portion being arranged on the brush plate portion, one end of the flat plate portion being connected to the noise reduction element, the minimum dimension of the flat plate portion along the axial direction being smaller than the minimum dimension perpendicular to the axial direction;

[0014] A vertical plate portion, which is connected to the flat plate portion and extends radially outward from the brush disk portion, at least a portion of which is arranged on the connector portion, a minimum dimension of the vertical plate portion perpendicular to the axial direction is smaller than a minimum dimension along the axial direction, and a direction of a minimum dimension of the vertical plate portion perpendicular to the axial direction arranged on the connector portion is perpendicular to a protruding direction of the connector portion relative to the brush disk portion.

[0015] According to another aspect of the embodiment of the present application, the bus bar further comprises:

[0016] a first connecting portion extending axially from the flat plate portion; and

[0017] a second connection portion extending from the first connection portion toward the outside of the brush plate portion,

[0018] A minimum dimension of at least one of the first connection portion and the second connection portion that is perpendicular to the axial direction is smaller than a minimum dimension along the axial direction.

[0019] According to another aspect of the embodiment of the present application, the flat plate portion has a first axial through portion.

[0020] One end portion of the noise reduction element on one side in the axial direction is accommodated in the first axial penetration portion and is connected to the flat plate portion.

[0021] According to another aspect of the embodiment of the present application, the bus bar further comprises:

[0022] a first bent portion bent axially from one end of the flat plate portion,

[0023] The first curved portion has a second axial penetration portion, the second axial penetration portion at least partially overlaps with the first axial penetration portion in the axial direction and is communicated with the first axial penetration portion.

[0024] The one end portion on one side of the noise reduction element is accommodated in the first axial penetration portion and the second axial penetration portion, and is connected to at least one of the flat plate portion and the first bent portion.

[0025] According to another aspect of the embodiment of the present application, the connector portion has:

[0026] Connector body;

[0027] a first groove portion, the first groove portion being formed in the connector body, the first groove portion accommodating the at least a portion of the vertical plate portion; and

[0028] A cover portion covers the at least a portion of the vertical plate portion received in the first groove portion.

[0029] According to another aspect of the embodiment of the present application, the connector portion has:

[0030] A connector body covers at least a portion of the vertical plate portion by insert molding.

[0031] According to another aspect of the embodiment of the present application, the power supply component further comprises:

[0032] A sensor bus bar connected to a circuit board arranged parallel to the axial direction,

[0033] There are two bus bars, and the sensor bus bar is arranged between the two bus bars.

[0034] The sensor bus bar has a first sensor bus bar upright plate portion, wherein the minimum dimension of the first sensor bus bar upright plate portion along the axial direction is greater than the minimum dimension perpendicular to the axial direction.

[0035] The first bus bar upright portion of the sensor is accommodated in the second groove of the connector portion.

[0036] According to another aspect of the embodiment of the present application, the sensor bus bar further comprises a sensor second bus bar upright portion having an axial dimension smaller than that of the sensor first bus bar upright portion, and the sensor second bus bar upright portion is connected to the sensor first bus bar upright portion.

[0037] The circuit board has a slit portion formed by being recessed along the axial direction.

[0038] At least a portion of the second bus bar upright portion of the sensor is accommodated in the slit portion.

[0039] According to another aspect of the embodiment of the present application, the flat plate portion has a recessed portion that is recessed in a direction perpendicular to the axial direction.

[0040] According to another aspect of the embodiment of the present application, the brush disc portion has a plate portion extending radially and a wall portion extending axially from the plate portion.

[0041] The plate portion has a protrusion on one side facing the flat plate portion that protrudes axially toward the flat plate portion.

[0042] A gap is provided between a surface of the protruding portion facing the flat plate portion and a surface of the flat plate portion facing the protruding portion.

[0043] According to another aspect of the embodiment of the present application, a motor assembly is provided, the motor assembly having the power supply component according to any one of the above embodiments, the gear box having an extension portion protruding axially from the radial outer side of the brush plate portion toward the motor housing, the extension portion having a through hole, and the connector portion of the power supply component having:

[0044] A portion located between the motor housing and the extension portion, and a portion located axially on a side of the extension portion away from the gear box.

[0045] According to another aspect of the embodiment of the present application, the connector portion is formed with:

[0046] a first connector portion protruding radially outward from the brush plate portion and located between the brush plate portion and the extension portion;

[0047] a second connector portion extending axially from a radially outer end of the first connector portion in a direction away from the gear box; and

[0048] The third connector portion extends radially outward from the axial end portion of the second connector portion to a side of the extending portion that is farther from the gear box in the axial direction.

[0049] One of the beneficial effects of the embodiment of the present application is that: in the power supply component of the embodiment of the present application, the portion of the busbar extending to the radial outside of the brush disc is a vertical plate portion, thereby, the lateral dimension of the busbar is reduced on the radial outside of the brush disc, which is beneficial to the miniaturization of the motor assembly; and, since the flat plate portion is used to connect with the noise reduction element, the reliability of the connection is improved.

[0050] With reference to the following description and accompanying drawings, the specific embodiments of the present application are disclosed in detail, indicating the way in which the principles of the present application can be adopted. It should be understood that the embodiments of the present application are not limited in scope. Within the scope of the terms of the appended claims, the embodiments of the present application include many changes, modifications and equivalents.

[0051] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0052] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The elements and features described in one figure or one implementation of the present application embodiment may be combined with the elements and features shown in one or more other figures or implementations. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one implementation.

[0054] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0055] Figure 1 is a schematic diagram of a motor assembly having a power supply component according to an embodiment of the present application;

[0056] Figure 2 is a three-dimensional schematic diagram of a power supply component of an embodiment of the present application mounted on a motor body;

[0057] Figure 3 is a three-dimensional schematic diagram of a bus bar according to an embodiment of the present application;

[0058] Figure 4 is a schematic diagram of a cover portion of an embodiment of the present application;

[0059] Figure 5 is a partial schematic diagram of a sensor bus bar and a circuit board of an embodiment of the present application;

[0060] Figure 6 is a partial top view of a power supply component of an embodiment of the present application;

[0061] Figure 7 along Figure 6 Schematic diagram of a cross-section along the axial direction observed in the AA direction. DETAILED DESCRIPTION

[0062] The foregoing and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are specifically disclosed, which show some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents falling within the scope of the attached claims. Various embodiments of the present application are described below in conjunction with the accompanying drawings. These embodiments are exemplary only and are not limitations of the present application.

[0063] In the embodiments of the present application, the terms "first", "second", "upper", "lower", etc. are used to distinguish different elements in terms of title, but do not indicate the spatial arrangement or time order of these elements, etc., and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0064] In the embodiments of the present application, the singular forms "a", "the", etc. include plural forms and should be broadly understood as "a kind" or "a type" rather than being limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least in part according to...", and the term "based on" should be understood as "at least in part based on...", unless the context clearly indicates otherwise.

[0065] In addition, in the following description of the embodiments of the present application, for the convenience of explanation, the radial direction centered on the rotating shaft of the motor is called "radial"; the direction around the rotating shaft of the motor is called "circumferential"; the direction along the rotating shaft of the motor or parallel to it is called "axial"; in the axial direction, the direction in which the rotating shaft of the motor extends from the motor housing toward the gear box is the "upper" direction, and the direction opposite to the "upper" direction is the "lower" direction; the side away from the rotating shaft of the motor in the radial direction is called the "radial outer side", and the side close to the rotating shaft of the motor in the radial direction is called the "radial inner side"; the direction perpendicular to the axial direction is the "lateral" direction.

[0066] Embodiments of the first aspect

[0067] An embodiment of the first aspect of the present application provides a power supply component, Figure 1 is a schematic diagram of a motor assembly having the power supply component.

[0068] like Figure 1As shown, the motor assembly 100 includes: a power supply component 1, a motor housing 2 and a gear box 3. The power supply component 1 is arranged between the motor housing 2 and the gear box 3. The motor housing 2 is cylindrical and contains a motor (not shown), and the motor has a rotating shaft. The gear box 3 contains a gear (not shown) and the rotating shaft of the motor.

[0069] Figure 2 This is a three-dimensional schematic diagram of the power supply component mounted on the motor body. Figure 2 As shown, the power supply component 1 includes a brush plate portion 11 , a connector portion 12 , and a bus bar 13 .

[0070] The brush plate portion 11 accommodates brushes 111 for supplying power to the motor and a noise reduction element 112 connected to the brushes 111. The brush plate portion 11 is embedded in the motor housing 2, wherein the noise reduction element 112 is, for example, a choke coil. The connector portion 12 protrudes radially outward from the brush plate portion 11. The bus bar 13 is connected between the brush plate portion 11 and an external power source (not shown).

[0071] like Figure 2 As shown, the bus bar 13 includes a flat plate portion 131 and a vertical plate portion 132 .

[0072] The flat plate portion 131 is arranged in the brush plate portion 11 , and one end of the flat plate portion 131 is connected to the noise reduction element 112 . The minimum dimension of the flat plate portion 131 along the axial direction X1 is smaller than the minimum dimension perpendicular to the axial direction, that is, the extension surface of the flat plate portion 131 is perpendicular to the axial direction X1 .

[0073] The vertical plate portion 132 is connected to the flat plate portion 131 and extends radially outward from the brush disk portion 11. At least a portion of the vertical plate portion 132 is disposed on the connector portion 12. The minimum dimension of the vertical plate portion 132 perpendicular to the axial direction is smaller than the minimum dimension along the axial direction, and the minimum dimension direction X2 perpendicular to the axial direction of the vertical plate portion 132 disposed on the connector portion 12 is perpendicular to the protruding direction X3 of the connector portion 12 relative to the brush disk portion 11, that is, the extension surface of the vertical plate portion 132 disposed on the connector portion 12 is parallel to both the axial direction X1 and the protruding direction X3 of the connector 12.

[0074] According to the embodiment of the first aspect of the present application, in the power supply component, the portion of the busbar extending to the radially outer side of the brush disk portion is a vertical plate portion, whereby the lateral dimension of the busbar is reduced on the radially outer side of the brush disk portion, which can reduce the lateral dimension of the connector portion, thereby facilitating the miniaturization of the motor assembly; and since the flat plate portion is used to connect to the noise reduction element, the reliability of the connection is improved.

[0075] Figure 3 1 is a three-dimensional schematic diagram of the bus bar 13. Figure 3As shown, the bus bar 13 includes a first connection portion 133 and a second connection portion 134 in addition to the flat plate portion 131 and the upright plate portion 132 .

[0076] The first connection portion 133 extends axially from the flat plate portion 131. For example, the first connection portion 133 extends axially upward or downward. When the first connection portion 133 extends axially upward, interference between the first connection portion 133 and the bearing retainer above the flat plate portion 131 can be avoided, thereby improving the reliability of the motor assembly.

[0077] The second connection portion 134 extends from the first connection portion 133 to the brush plate portion ( Figure 3 The minimum dimension perpendicular to the axial direction of at least one of the first connection portion 133 and the second connection portion 134 is smaller than the minimum dimension along the axial direction.

[0078] like Figure 2 and Figure 3 As shown, the flat plate portion 131 may have a first axial through portion 1311, and the first axial through portion 1311 is, for example, a notch. One end portion 112a of the noise reduction element 112 along one axial side is accommodated in the first axial through portion 1311 and connected to the flat plate portion 131. By providing the first axial through portion 1311, the flat plate portion 131 can be connected to the noise reduction element 112 in a simple manner.

[0079] like Figure 2 and Figure 3 As shown, the bus bar 13 further includes a first bent portion 135. The first bent portion is bent in the axial direction from the end of one side of the flat plate portion 131. The first bent portion 135 includes a second axial penetration portion 1351, which may be, for example, a notch portion. The second axial penetration portion 1351 and the first axial penetration portion 1311 at least partially overlap in the axial direction, and the second axial penetration portion 1351 is connected to the first axial penetration portion 1311. The end portion 112a of the noise reduction element 112 may be accommodated in the first axial penetration portion 1311 and the second axial penetration portion 1351, and connected to at least one of the flat plate portion 131 and the first bent portion 135. By providing the first bent portion 135 and the second axial penetration portion 1351, the reliability of the connection portion between the noise reduction element and the bus bar can be improved, and the strength of the bus bar near the noise reduction element can be improved.

[0080] For example, the lateral dimension of the first axial through-hole 1311 and / or the second axial through-hole 1351 may be smaller than the diameter of the end 112a of the noise reduction element 112, so that the end 112a of the noise reduction element 112 may be pressed into the first axial through-hole 1311 and / or the second axial through-hole 1351, so that the noise reduction element 112 and the bus bar 13 are connected; for another example, the lateral dimension of the first axial through-hole 1311 and / or the second axial through-hole 1351 may be larger than the diameter of the end 112a of the noise reduction element 112, so that the end 112a of the noise reduction element 112 may be pressed into the first axial through-hole 1311 and / or the second axial through-hole 1351, so that the noise reduction element 112 and the bus bar 13 are connected. When the end 112a of 112 is arranged in the first axial penetration portion 1311 and / or the second axial penetration portion 1351, the first axial penetration portion 1311 and / or the second axial penetration portion 1351 are deformed on both sides to clamp the end 112a of the noise reduction element 112, thereby connecting the noise reduction element 112 and the bus bar 13. In addition, the contact parts between the end 112a of the noise reduction element 112 and both sides of the first axial penetration portion 1311 and / or the second axial penetration portion 1351 can be welded to further improve the reliability of the connection.

[0081] like Figure 2 As shown, the connector portion 12 may include: a connector body 121, a first groove portion 122, and a cover portion 123. The first groove portion 122 is formed in the connector body 121. The first groove portion 122 accommodates at least a portion of the vertical plate portion 132 of the bus bar 13, for example, the at least a portion of the vertical plate portion 132 may be pressed into or inserted into the first groove 122. The cover portion 123 covers the at least a portion of the vertical plate portion 132 accommodated in the first groove portion 122.

[0082] Figure 4 is a schematic diagram of the cover 123, such as Figure 4 As shown, the cover 123 may be formed with a rib 1232, which can improve the strength of the cover 123. The cover 123 may also have a buckle 1233, which can be engaged with the hook 1211 on the connector body 121 (see Figure 2 ) is engaged, thereby connecting the cover 123 to the connector body 121. In addition, the cover 123 may not have the buckle 1233, but may be fixed to the connector body 121 by pressing or heat welding. In addition, the surface of the cover 123 facing the vertical plate portion 132 of the bus bar 13 also has a bus bar abutting rib 1234 that abuts against the vertical plate portion 132, and the bus bar abutting rib 1234 can reliably press the vertical plate portion 132 into the first groove portion 122.

[0083] In addition, in other embodiments, the connector portion 12 may only have a connector body 121 without a cover portion 123, and the connector body 121 covers at least a portion of the vertical plate portion 132, for example, by insert molding, so that at least a portion of the vertical plate portion 132 is arranged in the connector portion 12.

[0084] In the present application, the connector portion 12 may be made of an insulating material, for example, resin.

[0085] like Figure 2 As shown, the power supply component 1 further comprises a sensor bus bar 14 . The sensor bus bar 14 is connected to a circuit board 15 whose extension surface is parallel to the axial direction. For example, the sensor bus bar 14 is electrically connected to a sensor disposed on the circuit board 15 .

[0086] like Figure 2 As shown, the number of bus bars 13 is two, and the two bus bars 13 are arranged separately along the X2 direction. The sensor bus bar 14 is arranged between the two bus bars 13.

[0087] Figure 5 FIG. 1 is a partial schematic diagram of the sensor bus bar 14 and the circuit board 15. Figure 5 As shown, the sensor bus bar 14 has a sensor first bus bar plate portion 141, the minimum dimension of the sensor first bus bar plate portion 141 along the axial direction is greater than the minimum dimension perpendicular to the axial direction (i.e., the X2 direction), and the minimum dimension direction perpendicular to the axial direction (i.e., the X2 direction) of the sensor first bus bar plate portion 141 disposed on the connector portion 12 is parallel to the connector portion 12 relative to the brush plate portion 11 ( Figure 5 At least a portion of the first bus bar riser 141 of the sensor can be accommodated in the second groove (not shown) of the connector 12. Since the size of the first bus bar riser 141 of the sensor along the X2 direction is small, the width of the connector 12 is suppressed.

[0088] like Figure 5 As shown, the sensor bus bar 14 further includes a sensor second bus bar upright portion 142, and the sensor second bus bar upright portion 142 is connected to the sensor first bus bar upright portion 141. The sensor second bus bar upright portion 142 is smaller than the sensor first bus bar upright portion 141 in the axial direction.

[0089] like Figure 5 As shown, the circuit board 15 has a slot portion 151 formed by being recessed in the axial direction, and at least a portion of the sensor second bus bar upright portion 142 is accommodated in the slot portion 151. Thus, the slot portion 151 can support the sensor bus bar 14 in the axial direction and can limit the position of the sensor bus bar 14 in the X2 direction.

[0090] Figure 6 1 is a partial top view of the power supply component 1. Figure 6 As shown, the flat plate portion 131 of the bus bar 13 has a recessed portion 1312 that is recessed in a direction perpendicular to the axial direction, that is, the recessed portion 1312 is recessed in the X2 direction. Through the recessed portion 1312, the flat plate portion 131 and the rotating shaft of the motor and other motor components arranged on the rotating shaft can maintain an appropriate distance in the X2 direction, thereby improving the reliability of the motor operation. In addition, the formation position of the recessed portion 1312 can be determined in the following manner: when the flat plate portion 131 does not have the recessed portion 1312, determine the position where the flat plate portion 131 and the rotating shaft of the motor are closest in the X2 direction, and form the recessed portion 1312 at this position.

[0091] Figure 7 is along Figure 6 A schematic cross-sectional view along the axial direction of a power supply component 1 configured in the motor body when viewed from the AA direction. Figure 6 and Figure 7 As shown in FIG. 1 , the brush plate portion 11 has a plate portion 113 extending radially and a wall portion 114 extending axially from the plate portion 113. The plate portion 113 has a protrusion 115 protruding axially toward the flat plate portion 131 on one side thereof. Figure 7 As shown, a gap 116 is formed between one side of the protrusion 115 facing the flat plate 131 and one side of the flat plate 131 facing the protrusion. Thus, the protrusion 115 and the flat plate 131 are opposed to each other through the gap 116, and a space can be reserved for the axial movement of the flat plate 131. In addition, the protrusion 115 limits the maximum position of the flat plate 131 moving downward in the axial direction, thereby preventing the flat plate 131 from being damaged by a large deformation during the assembly of the power supply component 1 or the use of the power supply component 1.

[0092] In the present application, the brush board portion 11 and the connector portion 12 may be obtained by integrally molding a resin material. In addition, the brush board portion 11 and the connector portion 12 may also be molded separately.

[0093] In the present application, the bus bar 13 may be integrally formed, thereby simplifying the manufacturing process of the bus bar 13 and eliminating the need to assemble multiple components.

[0094] According to the embodiment of the first aspect of the present application, in the power supply component, the portion of the busbar extending to the radially outer side of the brush disk portion is a vertical plate portion, whereby the lateral dimension of the busbar is reduced on the radially outer side of the brush disk portion, which can reduce the lateral dimension of the connector portion, thereby facilitating the miniaturization of the motor assembly; and since the flat plate portion is used to connect to the noise reduction element, the reliability of the connection is improved.

[0095] Embodiments of the second aspect

[0096] The second aspect of the present application provides a motor assembly having the power supply component described in the first aspect. Since the power supply component has been described in detail in the first aspect, its content is incorporated herein and the description is omitted here.

[0097] like Figure 1 As shown, the motor assembly 100 includes: a power supply component 1 , a motor housing 2 and a gear box 3 .

[0098] like Figure 1 As shown, the gear box 3 has an extension portion 31, which protrudes axially from the radially outer side of the brush plate portion 11 toward the motor housing 2, that is, the extension portion 31 is located radially outside the brush plate portion 11 and protrudes axially downward from the main body portion 30 of the gear box 3.

[0099] like Figure 1 As shown, the connector portion 12 of the power supply component 1 has: a portion located between the motor housing 2 and the extension portion 31, and a portion located axially on the side of the extension portion 31 away from the gear box 3 (i.e., located axially below the extension portion 31). Thus, the space between the main body portion 30 of the gear box 3 and the connector portion 12 can be fully utilized to set the extension portion 31 of the gear box 3, thereby increasing the effective utilization rate of the gear box 3, and there is no need to further expand other portions of the gear box 3 toward the outside, thereby achieving miniaturization of the motor assembly 100.

[0100] For example, Figure 1 As shown, the connector part 12 may be formed with: a first connector part 1201, which protrudes radially outward from the brush plate part 11 and is located between the brush plate part 11 and the extension part 31; a second connector part 1202, which extends axially from the radial outer end of the first connector part 1201 in a direction away from the gear box 3 (i.e., axially downward); and a third connector part 1203, which extends radially outward from the axial end of the second connector part 1202 to a side of the extension part 31 axially away from the gear box 3, i.e., the third connector part 1203 is located axially below the extension part 31. In addition, the connector part 12 may also be formed with a fourth connector part 1204, which extends axially from the side of the third connector part 1203 axially toward the motor housing in a direction away from the gear box 3.

[0101] exist Figure 1 , the first connector portion 1201 and the second connector portion 1202 are portions of the connector portion 12 located between the motor housing 2 and the extension portion 31 , and the third connector portion 1203 and the fourth connector portion 1204 are portions of the connector portion 12 located axially below the extension portion 31 .

[0102] In addition, if Figure 1As shown, a through hole 311 is formed on the extension portion 31, and the through hole 311 is located radially outward of the first connector portion 1201 and axially upward of the third connector portion 1203. The through hole 311 can accommodate a mounting component, and the mounting component can mount the motor assembly 100 on other equipment, thereby increasing the effective utilization rate of the gear box 3, that is, the motor assembly 100 can be mounted on other equipment without further expanding other parts of the gear box 3 toward the outside.

[0103] In the embodiment of the second aspect of the present application, the application field of the motor assembly is not limited. For example, the motor assembly can be used in a sunroof drive system of a car, or in other fields.

[0104] According to an embodiment of the second aspect of the present application, in the power supply component of the motor assembly, the portion of the bus bar extending to the radially outer side of the brush disk portion is a vertical plate portion. As a result, the lateral dimension of the bus bar is reduced on the radially outer side of the brush disk portion, which can reduce the lateral dimension of the connector portion, thereby facilitating the miniaturization of the motor assembly; and, since the flat plate portion is used to connect to the noise reduction element, the reliability of the motor electrical connection is improved.

[0105] The present application is described above in conjunction with specific implementation methods, but it should be clear to those skilled in the art that these descriptions are exemplary and are not intended to limit the scope of protection of the present application. 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.

Claims

1. A power supply component, the power supply component being arranged between a motor housing and a gear box, the motor housing being cylindrical and accommodating a motor, the motor having a rotating shaft, the gear box accommodating a gear and the rotating shaft, The power supply component has: A brush plate portion, the brush plate portion accommodating brushes for supplying power to the motor and noise reduction elements connected to the brushes, the brush plate portion being embedded in the motor housing; a connector portion, the connector portion protruding radially outward from the brush plate portion; as well as a bus bar connected between the brush plate portion and an external power source, The feature is that the bus bar has: a flat plate portion, the flat plate portion being arranged on the brush plate portion, one end of the flat plate portion being connected to the noise reduction element, the minimum dimension of the flat plate portion along the axial direction being smaller than the minimum dimension perpendicular to the axial direction; A vertical plate portion, which is connected to the flat plate portion and extends radially outward from the brush disk portion, at least a portion of which is arranged on the connector portion, a minimum dimension of the vertical plate portion perpendicular to the axial direction is smaller than a minimum dimension along the axial direction, and a direction of a minimum dimension of the vertical plate portion perpendicular to the axial direction arranged on the connector portion is perpendicular to a protruding direction of the connector portion relative to the brush disk portion.

2. The power supply component according to claim 1, wherein: The bus bar also has: a first connecting portion extending axially from the flat plate portion; and a second connection portion extending from the first connection portion toward the outside of the brush plate portion, A minimum dimension of at least one of the first connection portion and the second connection portion that is perpendicular to the axial direction is smaller than a minimum dimension along the axial direction.

3. The power supply component according to claim 1, wherein: The flat plate portion has a first axial through portion, One end portion of the noise reduction element on one side in the axial direction is accommodated in the first axial penetration portion and is connected to the flat plate portion.

4. The power supply component according to claim 3, wherein: The bus bar also has: a first bent portion bent axially from one end of the flat plate portion, The first curved portion has a second axial penetration portion, the second axial penetration portion at least partially overlaps with the first axial penetration portion in the axial direction and is communicated with the first axial penetration portion. The one end portion on one side of the noise reduction element is accommodated in the first axial penetration portion and the second axial penetration portion, and is connected to at least one of the flat plate portion and the first bent portion.

5. The power supply component according to claim 1, wherein: The connector portion has: Connector body; a first groove portion, the first groove portion being formed in the connector body, the first groove portion accommodating the at least a portion of the vertical plate portion; as well as A cover portion covers the at least a portion of the vertical plate portion received in the first groove portion.

6. The power supply component according to claim 1, wherein: The connector portion has: A connector body covers at least a portion of the vertical plate portion by insert molding.

7. The power supply component according to claim 1, wherein: The power supply component also has: A sensor bus bar connected to a circuit board arranged parallel to the axial direction, There are two bus bars, and the sensor bus bar is arranged between the two bus bars. The sensor bus bar has a first sensor bus bar upright plate portion, wherein the minimum dimension of the first sensor bus bar upright plate portion along the axial direction is greater than the minimum dimension perpendicular to the axial direction. The first bus bar upright portion of the sensor is accommodated in the second groove of the connector portion.

8. The power supply component according to claim 7, wherein: The sensor bus bar further includes a second sensor bus bar upright plate portion having an axial dimension smaller than that of the first sensor bus bar upright plate portion, and the second sensor bus bar upright plate portion is connected to the first sensor bus bar upright plate portion. The circuit board has a slit portion formed by being recessed along the axial direction. At least a portion of the second bus bar upright portion of the sensor is accommodated in the slit portion.

9. The power supply component according to claim 1, wherein: The flat plate portion has a recessed portion recessed in a direction perpendicular to the axial direction.

10. The power supply component according to claim 1, wherein: The brush plate portion includes a plate portion extending in a radial direction and a wall portion extending in an axial direction from the plate portion. The plate portion has a protrusion on one side facing the flat plate portion that protrudes axially toward the flat plate portion. A gap is provided between a surface of the protruding portion facing the flat plate portion and a surface of the flat plate portion facing the protruding portion.

11. A motor assembly, characterized in that: The motor assembly has a power supply component as claimed in any one of claims 1 to 10, The gear box has an extension portion protruding from the radially outer side of the brush plate portion toward the motor housing in the axial direction, and the extension portion has a through hole. The connector portion of the power supply component has: A portion located between the motor housing and the extension portion, and a portion located axially on a side of the extension portion away from the gear box.

12. The motor assembly of claim 11, wherein: The connector portion is formed with: a first connector portion protruding radially outward from the brush plate portion and located between the brush plate portion and the extension portion; a second connector portion extending axially from a radially outer end of the first connector portion in a direction away from the gear box; and The third connector portion extends radially outward from the axial end portion of the second connector portion to a side of the extending portion that is farther from the gear box in the axial direction.

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