Conductive connector, stator assembly and motor

Abstract

This application discloses a conductive connector for a motor stator, a stator assembly, and a motor. The motor stator includes multiple windings, each winding including a first end and a second end. The conductive connector includes: a first main input terminal; and a first electrical connection portion electrically connected to the first main input terminal, the first electrical connection portion being used to connect the first end of a portion of the windings of the motor stator. The conductive connector is configured to connect the windings connected to the first electrical connection portion in parallel. This solution improves the safety performance of the motor and eliminates the need for insulating paper between adjacent windings, thereby reducing the cost of the motor.

Description

Technical Field

[0001] This application relates to the field of electromechanical engineering, and in particular to a conductive connector, a stator assembly, and a motor. Background Technology

[0002] The conductive connectors on the motor stator are used to electrically connect the multiple windings of the motor arranged in a ring array. External current is transmitted to each winding through the conductive connectors on the stator. After the current flows through each winding, it generates magnetic force, thereby driving the motor rotor to rotate relative to the stator. In the prior art, in order to meet the requirements of performance and miniaturization, the spacing between the windings of the stator in motors is small. This makes it easy for damaged parts of the paint on adjacent windings to come into contact, resulting in a short circuit and low safety. Invention Overview

[0004] Technical issues

[0005] This application provides a conductive connector, a stator assembly, and a motor, which can improve the safety performance of the motor.

[0006] Solution to the problem

[0007] Technical solutions

[0008] To address the aforementioned technical problems, the first aspect of this application provides a conductive connector for a motor stator. The motor stator includes multiple windings, each winding including a first end and a second end. The conductive connector includes:

[0009] First main input terminal;

[0010] The first electrical connection part is electrically connected to the first main input terminal, and the first electrical connection part is used to connect to the first end of a portion of the winding of the motor stator.

[0011] The conductive connector is configured such that the windings connected to the first electrical connector are connected in parallel.

[0012] A second aspect of this application also provides a conductive connector for a motor stator, used for connecting to the windings of a motor, characterized in that the conductive connector includes a plurality of conductive connection units, the conductive connection units including:

[0013] Main input terminals and electrical connections,

[0014] The electrical connection includes a first branch and a second branch.

[0015] The first branch is positioned at a first height along the motor axis.

[0016] The second branch is positioned at a second height along the motor axis.

[0017] A third aspect of this application also provides a stator assembly for a motor, comprising:

[0018] Stator core;

[0019] Multiple windings wound on a stator core, each winding including a first end and a second end; and

[0020] The aforementioned conductive connector is electrically connected to the winding.

[0021] A fourth aspect of this application also provides a motor, comprising:

[0022] The aforementioned stator assembly; and

[0023] A rotor assembly that can rotate relative to the stator assembly.

[0024] Beneficial effects of the invention

[0025] Beneficial effects

[0026] The conductive connector provided in this application embodiment allows for a smaller current flowing through the motor stator windings (in the prior art, the windings connected by the first electrical connection are connected in series, resulting in a relatively large current to ensure the winding voltage is the same). Therefore, the diameter of the wire wound into the winding can be smaller, leading to a smaller individual winding volume and a larger spacing between adjacent windings. This solution reduces the probability of short circuits due to contact between adjacent windings, improving the motor's safety performance. Furthermore, it increases the possibility of removing the insulating paper placed between adjacent windings, thereby reducing the motor's material and processing costs.

[0027] Brief description of the accompanying drawings Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.

[0029] Figure 1 This is a circuit diagram of a conductive connector according to an embodiment of the present application; wherein, the arrangement positions of each component of the conductive connector are shown.

[0030] Figure 2 This is a first-view perspective perspective view of a conductive connector provided in an embodiment of this application;

[0031] Figure 3 This is a second-view perspective perspective of a conductive connector provided in an embodiment of this application;

[0032] Figure 4 This is a top view schematic diagram of a conductive connector provided in an embodiment of this application;

[0033] Figure 5 This is a first exploded view of a conductive connector provided in an embodiment of this application;

[0034] Figure 6 This is a second exploded view of a conductive connector provided in an embodiment of this application;

[0035] Figure 7 This is a third exploded view of a conductive connector provided in one embodiment of this application;

[0036] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle;

[0037] Figure 9 This is a perspective view of the combination of the first main input terminal, the second main input terminal, the third main input terminal, the first branch, the fourth branch, and the sixth branch of the conductive connector provided in an embodiment of this application;

[0038] Figure 10 This is an exploded view of the combination of the first main input terminal, the second main input terminal, the third main input terminal, the first branch, the fourth branch, and the sixth branch of the conductive connector provided in an embodiment of this application;

[0039] Figure 11 This is a first-view perspective perspective schematic diagram of a motor provided in an embodiment of this application;

[0040] Figure 12 This is an exploded schematic diagram of a motor provided in one embodiment of this application;

[0041] Figure 13 This is a full sectional view of a motor provided in one embodiment of this application;

[0042] Figure 14 This is a cross-sectional schematic diagram of an exploded view of a motor provided in an embodiment of this application;

[0043] Figure 15 This is a perspective view of a stator assembly of a motor provided in an embodiment of this application.

[0044] Invention Embodiments

[0045] Embodiments of the present invention

[0046] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0047] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0048] The conductive connector of the motor stator is used to electrically connect the various ring-shaped windings of the stator. External current is transmitted to each winding through the conductive connector. After the current flows through each winding, it generates magnetic force, thereby driving the motor rotor to rotate relative to the stator. The conductive connector includes three main input terminals, and three currents with different phases are transmitted to each winding respectively through the three main input terminals.

[0049] The applicant also discovered that in existing motor stators, in order to meet users' requirements for high performance and miniaturization, the spacing between each winding is small. In order to reduce the probability of short circuits between two adjacent windings, insulating paper needs to be installed between each winding, which is costly.

[0050] In view of this, see Figure 1-12 One embodiment of this application provides a conductive connector 100 for a motor 10. When the motor 10 uses the conductive connector 100 in this embodiment to connect each winding 200, the volume of the winding can be optimized, thereby improving the safety performance of the motor 10.

[0051] The conductive connector 100 is used for electrical connection with the windings 200 of the motor stator. The number of windings 200 of the motor 10 can be determined according to specific requirements. For ease of description, the following embodiment uses a motor 10 with twelve windings 200 arranged around a first axis 400 as an example. Specifically, each winding 200 has two ends for connecting to the conductive connector 100. The two ends of each winding 200 are referred to as the first end 210 and the second end 220, respectively. The twelve windings 200 have a total of twelve first ends 210 and twelve second ends 220. The arrangement of the first end 210 and the second end 220 of each winding 200 depends on specific requirements. In this embodiment, an example is given where the first end 210 of each winding 200 is located on the outer ring relatively far from the first axis 400, and the second end 220 of each winding 200 is located on the inner ring relatively close to the first axis 400.

[0052] In this embodiment, the conductive connector 100 includes three conductive connection units, each including a main input terminal and an electrical connection portion. For ease of distinction, the following description uses the example of a first conductive connection unit including a first main input terminal 110 and a first electrical connection portion 140, a second conductive connection unit including a second main input terminal 120 and a second electrical connection portion 150, and a third conductive connection unit including a third main input terminal 130 and a third electrical connection portion 160. The first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 are used to correspondingly acquire three-phase current. It is understood that in other embodiments, the number of main input terminals and electrical connection portions can be set according to the situation; for example, in a two-phase motor, only two main input terminals and two electrical connection portions need to be provided. This article will use a three-phase motor as an example to describe the features of the present invention in detail.

[0053] The first main input terminal 110 is electrically connected to the first electrical connection portion 140, which is used to electrically connect to the first end 210 of the winding 200 of the motor 10. Specifically, in this embodiment, the first electrical connection portion 140 is used to connect to the first end 210 of four different windings 200 at the same potential, thereby enabling the first electrical connection portion 140 to transfer electrical energy to the aforementioned four windings 200. Specifically, in this embodiment, the first electrical connection portion 140 is directly connected to the four windings 200.

[0054] In other embodiments, the first electrical connection portion 140 may also be directly connected to five, six or more windings 200, which will not be elaborated here.

[0055] See Figure 1 as well as Figure 5In this embodiment, the conductive connector 100 is configured to connect each winding 200 connected to it at the same potential in parallel. That is, the first end 210 of each winding 200 is electrically connected to the first electrical connection part 140, and the second end 220 of each winding 200 is electrically connected to a point (specifically connected to the fourth electrical connection part 170 mentioned below).

[0056] In this embodiment, compared to the structure where the winding 200 directly connected to the first electrical connection 140 is first connected in series with other windings 200 (windings 200 not directly connected to the first electrical connection 140) and then connected in parallel, in order to ensure that each winding 200 receives the same voltage, the current flowing through the winding 200 in this application can be smaller (in the prior art, the windings 200 connected to the first electrical connection 140 are connected in series, and the current is relatively larger). Therefore, the diameter of the wire wound into the winding 200 can be smaller, making the volume of a single winding 200 smaller, and the spacing between two adjacent windings 200 can be increased. In the above solution, on the one hand, the probability of two adjacent windings 200 contacting and thus short-circuiting is reduced, improving the safety performance of the motor 10. On the other hand, it also increases the possibility of removing the insulating paper arranged between two adjacent windings 200, thereby reducing the material cost and processing cost of the motor 10.

[0057] The second main input terminal 120 is electrically connected to the second electrical connection portion 150, which is used to directly connect at least four windings 200 to their first ends 210. In this embodiment, the second electrical connection portion 150 is directly connected to the first ends 210 of the four windings 200. The second main input terminal 120 transmits the acquired current to the second electrical connection portion 150, which in turn transmits the current to the four windings 200 connected to it.

[0058] The third main input terminal 130 is electrically connected to the third electrical connection portion 160, which is used to directly connect to the first ends 210 of at least four windings 200. In this embodiment, the third electrical connection portion 160 is directly connected to the first ends 210 of the four windings 200. The third main input terminal 130 transmits the acquired current to the third electrical connection portion 160, which in turn transmits the current to the four windings 200 connected to it.

[0059] In this embodiment, the conductive connector 100 further includes a fourth electrical connection portion 170, which is electrically connected to the second ends 220 of all windings 200. That is, the second end 220 of each winding 200 is electrically connected to the fourth electrical connection portion 170, and the first ends 210 of all windings 200 are respectively electrically connected to one of the first main input terminal 110, the second main input terminal 120, or the third main input terminal 130. Thus, all windings 200 of the motor stator are connected in a star configuration.

[0060] In this embodiment, the conductive connector 100 enables the windings 200 connected to each main input terminal to be connected in parallel, and enables the windings 200 of the stator of the motor 10 to be connected in a star configuration. This further reduces the current flowing between the windings 200, allowing each winding 200 to use a smaller diameter wire, reducing the probability of short circuits between adjacent windings 200, and thus improving the safety performance of the motor 10.

[0061] In this embodiment, the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 all extend along the first direction X (specifically, the axial direction of the motor 10). The first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 are arranged in a circular array with the first axis 400 (specifically, the rotation axis of the motor 10) as the central axis, and the array angle is 360 degrees. In other words, with the first axis 400 as the central axis, along the first circumferential direction M, the angle between each pair of the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 is 120 degrees. This structural arrangement allows for a reduction in the maximum circumferential dimensions of the first electrical connection portion 140, the second electrical connection portion 150, and the third electrical connection portion 160, resulting in less processing waste during their fabrication and lowering their processing costs.

[0062] Understandably, in other embodiments, the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 may also be designed with other arrangement angles according to actual needs, which will not be elaborated here.

[0063] Specifically, in this embodiment, see Figure 3-6 The first electrical connection portion 140 includes a first branch 141 and a second branch 142, which are electrically connected to one end of the first main input terminal 110, respectively. The first branch 141 is used to directly connect the first ends 210 of two windings 200, and the second branch 142 is used to directly connect the first ends 210 of two other windings 200. In this scheme, two separate parts, the first branch 141 and the second branch 142, are used to connect four windings 200 respectively, which makes the overall volume of each part of the first electrical connection portion 140 smaller. Compared with the structure of using one part to connect four windings 200 at the same time, the first electrical connection portion 140 is easier to manufacture, produces less waste, and has a lower cost. In other embodiments, the first branch 141 can also connect the first ends 210 of three or more windings 200, and the second branch 142 can also connect the first ends 210 of three or more windings 200.

[0064] In this embodiment, the first main input terminal 110 extends along the first direction X (i.e., the motor axial direction), the first branch 141 extends along the first circumferential direction M around the first axis 400, and the second branch 142 extends along the second circumferential direction N around the first axis 400. The first circumferential direction M is opposite to the second circumferential direction N. The first axis 400 is parallel to the first direction X and is separate from the first main input terminal 110. Specifically, the first axis 400 can be the rotation axis of the motor 10. Since the first branch 141 and the second branch 142 extend in different circumferential directions, it is easier to connect the first branch 141 and the second branch 142 to the windings 200 at corresponding positions. The overall structure of the first electrical connection part 140 is neater and the assembly difficulty is lower.

[0065] In this embodiment, see Figure 2 , Figure 5 as well as Figure 6 The first branch 141 is arranged around the motor 10 at a first height along the axial direction, and the second branch 142 is arranged around the motor 10 at a second height along the axial direction. The first branch 141 and the second branch 142 are distributed at different positions along the axial direction of the motor 10 and are not located in the same plane.

[0066] See Figure 5-7 In this embodiment, the first main input terminal 110 includes a first part 111, a second part 112, and a third part 113. The first part 111 extends along a first direction X, the second part 112 extends along a first circumferential direction M, and the third part 113 extends along a second circumferential direction N. The first part 111, the second part 112, and the third part 113 can be integrally bent into shape.

[0067] The second part 112 is connected at one end to the first part 111 and at the other end to the first branch 141 near the first part 111. The connection between the second part 112 and the first branch 141 can be soldered. Since the first main input terminal 110 has the second part 112 extending along the first circumferential direction M, the circumferential length of the first branch 141 can be reduced, thereby making the volume of the first branch 141 smaller, reducing the processing difficulty of the first branch 141, and reducing the processing waste during the processing of the first branch 141.

[0068] The third part 113 is connected at one end to the first part 111 and at the other end to the end of the second branch 142 near the first part 111. The connection between the third part 113 and the second branch 142 can be soldered. Since the first main input terminal 110 has the third part 113 extending along the second circumferential direction N, the circumferential length of the second branch 142 can be reduced, thereby making the volume of the second branch 141 smaller, reducing the processing difficulty of the second branch 142, and reducing the processing waste during the processing of the second branch 142.

[0069] The second electrical connection portion 150 includes a third branch 151 and a fourth branch 152. The third branch 151 extends M along a first circumference around the first axis 400, and the fourth branch 152 extends N along a second circumference around the first axis 400. The second main input terminal 120 includes a fourth portion 121, a fifth portion 122, and a sixth portion 123. The fourth portion 121 extends X along a first direction. One end of the fifth portion 122 is connected to one end of the fourth portion 121 along the first direction X, and the other end of the fifth portion 122 is connected to one end of the third branch 151 near the fourth portion 121. One end of the sixth portion 123 is connected to one end of the fourth portion 121 along the first direction X, and the other end of the sixth portion 123 is connected to one end of the fourth branch 152 near the fourth portion 121. The fifth portion 122 and the sixth portion 123 are connected to a common end of the fourth portion 121, and the fourth portion 121, the fifth portion 122, and the sixth portion 123 are integrally bent into shape. In the above-described structural arrangement of the first main input terminal 110, the circumferential length of the third branch 151 and the fourth branch 152 can be reduced, thereby making the overall volume of the third branch 151 and the fourth branch 152 smaller and reducing the processing waste during the processing of the third branch 151 and the fourth branch 152.

[0070] The third electrical connection portion 160 includes a fifth branch 161 and a sixth branch 162. The fifth branch 161 extends M along a first circumference around the first axis 400, and the sixth branch 162 extends N along a second circumference around the first axis 400. The third main input terminal 130 includes a seventh portion 131, an eighth portion 132, and a ninth portion 133. The seventh portion 131 extends along a first direction X. One end of the eighth portion 132 is connected to one end of the seventh portion 131 along the first direction X, and the other end of the eighth portion 132 is connected to one end of the fifth branch 161 near the seventh portion 131. One end of the ninth portion 133 is connected to one end of the seventh portion 131 along the first direction X, and the other end of the ninth portion 133 is connected to one end of the sixth branch 162 near the seventh portion 131. The eighth portion 132 and the ninth portion 133 are connected to a common end of the seventh portion 131, and the seventh portion 131, the eighth portion 132, and the ninth portion 133 are integrally bent into shape. In the above-described structural arrangement of the third main input terminal 130, the overall volume of the fifth branch 161 and the sixth branch 162 can be smaller, reducing the processing waste during the processing of the fifth branch 161 and the sixth branch 162.

[0071] In this embodiment, the first branch 141, the second branch 142, the third branch 151, the fourth branch 152, the fifth branch 161, and the sixth branch 162 are all used to connect the first ends 210 of the two windings 200. The first branch 141, the second branch 142, the third branch 151, the fourth branch 152, the fifth branch 161, and the sixth branch 162 are collectively connected to the first ends 210 of the twelve windings 200 of the motor 10, and the fourth electrical connection part 170 is connected to the second ends 220 of the twelve windings 200, so that the twelve windings 200 are connected in a star configuration.

[0072] In this embodiment, at least one branch of the first electrical connection portion 140 and at least one branch of the second electrical connection portion 150 are stacked along the first direction X. Specifically, see [link to documentation]. Figure 2 , Figure 5 , Figure 9 as well as Figure 10 The first branch 141 and the fourth branch 152 are at least partially stacked along the first direction X. This structural arrangement can reduce the overall space occupied by the first branch 141 and the fourth branch 152. Further, at least one branch of the first electrical connection portion 140 and at least one branch of the third electrical connection portion 160 are stacked along the first direction X. Specifically, the first branch 141 and the sixth branch 162 are at least partially stacked along the first direction X. This structural arrangement can reduce the overall space occupied by the first branch 141 and the sixth branch 162.

[0073] Furthermore, in this embodiment, the third branch 151 and the sixth branch 162 are at least partially stacked along the first direction X, which can reduce the overall space occupied by the third branch 151 and the sixth branch 162. Similarly, the third branch 151 and the second branch 142 are at least partially stacked along the first direction X, which can reduce the overall space occupied by the third branch 151 and the second branch 142. The fifth branch 161 and the second branch 142 are at least partially stacked along the first direction X, which can reduce the overall space occupied by the fifth branch 161 and the second branch 142. Finally, the fifth branch 161 and the fourth branch 152 are at least partially stacked along the first direction X, which can reduce the overall space occupied by the fifth branch 161 and the fourth branch 152.

[0074] In this embodiment, the first branch 141, the sixth branch 162, and the sixth part 123 are arranged in a stacked manner along the first direction X. This reduces the overall space occupied by the first branch 141, the sixth branch 162, and the sixth part 123. Further, the first branch 141, the sixth branch 162, and the fifth part 122 are arranged in a stacked manner along the first direction X, further reducing the overall space occupied by the first branch 141, the sixth branch 162, and the fifth part 122. The fifth branch 161, the fourth branch 152, and the second part 112 are arranged in a stacked manner along the first direction X, further reducing the overall space occupied by the fifth branch 161, the fourth branch 152, and the second part 112. The fifth branch 161, the fourth branch 152, and the first part 111 are arranged in a stacked manner along the first direction X, further reducing the overall space occupied by the fifth branch 161, the fourth branch 152, and the first part 111. The third branch 151, the first branch 141, and the eighth part 132 are arranged in a stacked manner along the first direction X, thereby reducing the overall space occupied by the three parts. The third branch 151, the first branch 141, and the ninth part 133 are also arranged in a stacked manner along the first direction X, thereby reducing the overall space occupied by the three parts.

[0075] Specifically, see Figure 2 , Figure 5 , Figure 9 as well as Figure 10 In this embodiment, the first branch 141 includes a first connection terminal 1411 for electrical connection to the first end 210 of the winding 200, the fourth branch 152 includes a second connection terminal 1521 for electrical connection to the first end 210 of the winding 200, and the sixth branch 162 includes a third connection terminal 1621 for electrical connection to the first end 210 of the winding 200. The second main input terminal 120 includes a fourth portion 121, a fifth portion 122, and a sixth portion 123 extending along a first direction X. The fourth portion 121 extends along the first direction X, the fifth branch 161 extends around a first circumference M and connects to the third branch 151, and the sixth portion 123 extends around a second circumference N and connects to the fourth branch 152. Along the first circumference M, the first connection terminal 1411, the second connection terminal 1521, and the third connection terminal 1621 are all located between the first portion 111 and the fourth portion 121. The above structural arrangement allows the connection terminals that are electrically connected to different adjacent windings 200 to be arranged adjacently, which facilitates the electrical connection between each connection terminal and the winding 200.

[0076] In this embodiment, the first connecting terminal 1411, the second connecting terminal 1521, and the third connecting terminal 1621 are sequentially arranged adjacently along the first circumferential direction M. This structural arrangement ensures that the arrangement order and direction of the first connecting terminal 1411, the second connecting terminal 1521, and the third connecting terminal 1621 are the same as the arrangement order and direction of the three windings 200 to which they are connected, further facilitating the connection between each connecting terminal and each winding 200. Preferably, in this embodiment, the first connecting terminal 1411, the second connecting terminal 1521, and the third connecting terminal 1621 are arranged in a circular array with the first axis 400 as the central axis, and the array angle is sixty degrees.

[0077] In this embodiment, the first branch 141, the third branch 151, and the fifth branch 161 are distributed along the first circumferential direction M, and their positions are aligned along the first direction X. This arrangement reduces the overall space occupied by the first branch 141, the third branch 151, and the fifth branch 161 along the first direction X. The second branch 142, the fourth branch 152, and the sixth branch 162 are also distributed along the first circumferential direction M, and their positions are aligned along the first direction X. This arrangement also reduces the overall space occupied by the second branch 142, the fourth branch 152, and the sixth branch 162 along the first direction X.

[0078] In this embodiment, the first branch 141, the second branch 142, the third branch 151, the fourth branch 152, the fifth branch 161, and the sixth branch 162 are all integrally formed from sheet 184, and the thickness directions of the first branch 141, the second branch 142, the third branch 151, the fourth branch 152, the fifth branch 161, and the sixth branch 162 are all parallel to the first direction X. This design further reduces the thickness of the remaining components of the conductive connector 100 along the first direction X after removing the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130, thereby reducing the overall space occupied by the conductive connector 100.

[0079] Since the specific connection methods of the first branch 141, the third branch 151, and the fifth branch 161 can be the same, the structural sizes of the first branch 141, the third branch 151, and the fifth branch 161 in this embodiment can all be the same. When manufacturing the first branch 141, the third branch 151, and the fifth branch 161, the same component can be manufactured first, and then when this component is installed in the position of the first branch 141, this component becomes the first branch 141; when this component is installed in the position of the third branch 151, this component becomes the third branch 151; and when this component is installed in the arrangement position of the fifth branch 161, this component becomes the fifth branch 161.

[0080] Since the specific connection methods of the second branch 142, the fourth branch 152, and the sixth branch 162 can be the same, the structural sizes of the second branch 142, the fourth branch 152, and the sixth branch 162 in this embodiment can all be the same. When manufacturing the second branch 142, the fourth branch 152, and the sixth branch 162, the same component can be manufactured first, and then when this component is installed in the position of the second branch 142, this component becomes the second branch 142; when this component is installed in the position of the fourth branch 152, this component becomes the fourth branch 152; and when this component is installed in the arrangement position of the sixth branch 162, this component becomes the sixth branch 162.

[0081] Since the specific connection methods of the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 can be the same, the structural sizes of the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 are all the same in this embodiment. When manufacturing the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130, the same component can be manufactured first. When this component is installed in the position of the first main input terminal 110, this component becomes the first main input terminal 110; when this component is installed in the position of the second main input terminal 120, this component becomes the second main input terminal 120; and when this component is installed in the arrangement position of the third main input terminal 130, this component becomes the third main input terminal 130.

[0082] The specific location of the fourth electrical connection part 170 depends on specific requirements. In this embodiment, see [reference needed]. Figure 4-5 The fourth electrical connection portion 170 is disposed on the inner side of the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 near the first axis 400. Compared with a structure arrangement in which the fourth electrical connection portion 170 and at least one of the first electrical connection portion 140, the second electrical connection portion 150, and the third electrical connection portion 160 are stacked along the first direction X, this arrangement can further reduce the thickness of the remaining components of the conductive connector 100 after removing the first main input terminal 110, the second main input terminal 120, and the third main input terminal 130 along the first direction X.

[0083] In this embodiment, the fourth electrical connection portion 170 includes four connecting pieces electrically connected to each other, arranged circumferentially around the first axis 400. The four connecting pieces are a first connecting piece 171, a second connecting piece 172, a third connecting piece 173, and a fourth connecting piece 174. The first connecting piece 171 includes a fourth connecting terminal 1711, a fifth connecting terminal 1712, and a sixth connecting terminal 1713. The first connecting terminal 1411 and the fourth connecting terminal 1711 are arranged opposite each other, and are used to electrically connect the same winding 200. The second connecting terminal 1521 and the fifth connecting terminal 1712 are arranged opposite each other, and are used to electrically connect the same winding 200. The third connecting terminal 1621 and the sixth connecting terminal 1713 are arranged opposite each other, and are used to electrically connect the same winding 200. The first connecting piece 171, the second connecting piece 172, the third connecting piece 173, and the fourth connecting piece 174 together connect the second ends 220 of the twelve windings 200, thereby making the second ends 220 of all windings 200 electrically connected to each other under the three-phase power supply of the motor stator circuit.

[0084] In other embodiments, the fourth electrical connection portion 170 may include only two connecting pieces or only one connecting piece, which will not be elaborated here. Compared to the connection method with two connecting pieces or one connecting piece, providing four connecting pieces can simplify the manufacturing process of the fourth electrical connection portion 170 and save raw materials.

[0085] See Figures 1-10 as well as Figure 15 This application also provides a stator assembly 11 for a motor 10. The stator assembly 11 includes a conductive connector 100 as described above, a stator core 600, an insulating frame 230 fixed to the stator core 600, and a plurality of windings 200 wound on the insulating frame 230. Each winding 200 is fixed to the insulating frame 230, and adjacent windings 200 are arranged with a gap between them. That is, adjacent windings 200 are directly spaced apart without insulating paper between them, thereby reducing the material cost of the motor 10.

[0086] See Figure 11-15 This application also provides a motor 10, which includes... Figure 1-10 The stator assembly 11, rotor assembly 500, and housing 300 are shown in the embodiment. Each winding 200 is fixed to the insulating frame 230, and each winding 200 includes a first end 210 and a second end 220 that are electrically connected to the bus assembly 101.

[0087] The insulating frame 230 has a second snap-fit ​​portion 231. After the first snap-fit ​​portion 198 of the support member 190 snaps into the second snap-fit ​​portion 231 of the insulating frame 230, the first end 210 of each winding 200 is directly opposite to the respective connection terminals of the first electrical connection portion 140, the second electrical connection portion 150 and the third electrical connection portion 160 in the first direction X, and the second end 220 of each winding 200 is directly opposite to the respective connection terminals of the fourth electrical connection portion 170 in the second direction.

[0088] The insulating frame 230, conductive connector 100, and winding 200 of the motor 10 are all disposed within the housing 300. The housing 300 includes an end cover 310, which has an opening 311 through which the first main input terminal 110 and the first support portion 191 extend into the inner cavity of the housing 300. Specifically, the end cover 310 includes three openings 311. The first main input terminal 110 and the first support portion 191 extend into the inner cavity of the housing 300 through the first opening 311, the second main input terminal 120 and the second support portion 192 extend into the inner cavity of the housing 300 through the second opening 311, and the third main input terminal 130 and the third support portion 193 extend into the inner cavity of the housing 300 through the third opening 311.

[0089] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A conductive connector for a motor stator, the motor stator comprising a plurality of windings, each winding comprising a first end and a second end, characterized in that, The conductive connector includes: A first main input terminal, a second main input terminal, and a third main input terminal are arranged to extend along a first direction. The first electrical connection part is electrically connected to the first main input terminal, and the first electrical connection part is used to connect to the first end of a portion of the winding of the motor stator. The conductive connector is configured such that all windings connected to the first electrical connector are connected in parallel. The first electrical connection portion further includes a first branch and a second branch, wherein the first branch and the second branch are respectively electrically connected to the same end of the first main input terminal; The first branch is used to electrically connect at least two of the first ends of the windings, and the second branch is used to electrically connect at least two of the first ends of the windings; The first branch extends along a first circumferential direction around a first axis, and the second branch extends along a second circumferential direction around the first axis. The first circumferential direction is opposite to the second circumferential direction, and the first axis is parallel to the first direction and is separate from the first main input terminal. The first main input terminal includes a first part, a second part, and a third part. The first part extends along the first direction, the second part extends along the first circumferential direction, and the third part extends along the second circumferential direction. The second part is connected to the first part at one end and to the end of the first branch near the first part at the other end; the third part is connected to the first part at one end and to the end of the second branch near the first part at the other end. The second electrical connection part is electrically connected to the second main input terminal, and the second electrical connection part is used to directly connect at least the first ends of the four windings. The third electrical connection part is electrically connected to the third main input terminal, and the third electrical connection part is used to directly connect at least four of the first ends of the windings; The second electrical connection includes a third branch and a fourth branch, the third branch extending along a first circumferential direction around the first axis, and the fourth branch extending along a second circumferential direction around the first axis. The third electrical connection includes a fifth branch and a sixth branch, the fifth branch extending along a first circumferential direction around the first axis, and the sixth branch extending along a second circumferential direction around the first axis. The first branch includes a first connection terminal for electrical connection to a first end of the winding, the fourth branch includes a second connection terminal for electrical connection to a first end of the winding, and the sixth branch includes a third connection terminal for electrical connection to a first end of the winding. The second main input terminal includes a fourth part, a fifth part, and a sixth part extending along the first direction. The fourth part extends along the first direction, the fifth branch extends around the first circumferential direction and is connected to the third branch, and the sixth part extends around the second circumferential direction and is connected to the fourth branch. Along the first circumferential direction, the first connecting terminal, the second connecting terminal, and the third connecting terminal are all located between the first portion and the fourth portion.

2. The conductive connector according to claim 1, characterized in that, Also includes: The fourth electrical connection is used for electrical connection to the second end of all the windings; The first main input terminal, the second main input terminal, and the third main input terminal are used to electrically connect all the windings of the motor stator together, and the conductive connector is configured to connect all the windings in parallel with each other in a star configuration.

3. The conductive connector according to claim 1, characterized in that, The first main input terminal, the second main input terminal, and the third main input terminal are arranged in a circular array with the first axis as the central axis, and the array angle is 360 degrees.

4. The conductive connector according to claim 1, characterized in that, The first branch, the second branch, the third branch, the fourth branch, the fifth branch, and the sixth branch are all used to connect the first ends of the two windings.

5. The conductive connector according to claim 1, characterized in that, The first branch and the fourth branch are at least partially stacked along the first direction, and the first branch and the sixth branch are at least partially stacked along the first direction.

6. The conductive connector according to claim 1, characterized in that, The first connecting terminal, the second connecting terminal, and the third connecting terminal are distributed adjacent to each other along the first circumferential direction.

7. The conductive connector according to claim 6, characterized in that, The first connecting terminal, the second connecting terminal, and the third connecting terminal are arranged in a circular array with the first axis as the central axis, and the array angle is sixty degrees.

8. The conductive connector according to claim 1, characterized in that, The first branch, the sixth branch, and the sixth part are arranged in a stacked manner along the first direction.

9. The conductive connector according to claim 1, characterized in that, The first branch, the third branch, and the fifth branch are distributed along the first circumferential direction, and the first branch, the third branch, and the fifth branch are aligned along the first direction. And / or, The second branch, the fourth branch, and the sixth branch are distributed along the first circumferential direction, and the second branch, the fourth branch, and the sixth branch are aligned along the first direction.

10. The conductive connector according to claim 1, characterized in that, The thickness directions of the first branch, the second branch, the third branch, the fourth branch, the fifth branch, and the sixth branch are all parallel to the first direction.

11. The conductive connector according to claim 7, characterized in that, The first branch, the third branch, and the fifth branch are all the same size. And / or, The second branch, the fourth branch, and the sixth branch are all the same size; and / or The first main input terminal, the second main input terminal, and the third main input terminal are all the same size.

12. The conductive connector according to claim 2, characterized in that, The fourth electrical connection portion is disposed on the inner side of the first main input terminal, the second main input terminal, and the third main input terminal near the first axis.

13. The conductive connector according to claim 2, characterized in that, The fourth electrical connection includes four connecting pieces that are electrically connected to each other, and the four connecting pieces are arranged circumferentially around the first axis.

14. The conductive connector according to claim 13, characterized in that, The four connecting pieces include a first connecting piece, which includes a fourth connecting terminal, a fifth connecting terminal, and a sixth connecting terminal; The first connection terminal and the fourth connection terminal are arranged opposite to each other, and the first connection terminal and the fourth connection terminal are used to electrically connect to the same winding; The second connection terminal is arranged opposite to the fifth connection terminal, and the first connection terminal and the fourth connection terminal are used to electrically connect to the same winding; The third connection terminal is arranged opposite to the sixth connection terminal, and the first connection terminal and the fourth connection terminal are used to electrically connect to the same winding.

15. The conductive connector according to claim 1, characterized in that, The first branch, the third branch, and the fifth branch are arranged in a ring at a first height along the motor axis. The second branch, the fourth branch, and the sixth branch are arranged around the second height of the motor axis.

16. A stator assembly for a motor, characterized in that, include: Stator core; Multiple windings wound on the stator core, each winding including a first end and a second end; as well as The conductive connector according to any one of claims 1-15 is electrically connected to the winding.

17. A motor, characterized in that, include: The stator assembly according to claim 16; as well as A rotor assembly that can rotate relative to the stator assembly.

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