Convergence bridge unit, motor and vehicle

Abstract

The utility model discloses a convergence bridge unit, a motor and a vehicle, and the convergence bridge unit comprises a plurality of terminal parts, each terminal part comprises a first connection terminal and a connection sheet, the first connection terminal is used for connecting a winding structure, and the first connection terminal is connected with the connection sheet; the connecting pieces of all the terminal parts are not overlapped, and the winding structures connected with the first connecting terminals located on the different terminal parts are connected through connecting wires. According to the technical scheme provided by the embodiment of the invention, the bus bridge unit is arranged in a single-layer form, the first connecting terminal and the second connecting terminal which are used for electric connection are arranged on the connecting sheets on the terminal component so as to realize electric connection with the winding structure and the circuit board, and the connecting sheets are not overlapped to form a single-layer structure, so that the structure is simple, and the cost is low. The single-layer structure is simple, the design and processing difficulty is low, the cost of parts is reduced, and the market competitiveness is improved.

Description

Technical Field

[0001] The utility model generally relates to the field of motors, and in particular to a bus bridge unit, a motor and a vehicle. Background Art

[0002] The electric power steering system, referred to as EPS, is a power steering system that directly relies on the motor to provide auxiliary torque. Compared with the traditional hydraulic power steering system HPS, the EPS system has the advantages of reducing fuel consumption, enhancing steering followability, and improving return-to-center characteristics. Among them, the motor is the core component and the main source of power.

[0003] However, the design of the bus bridge unit in a general motor structure is relatively complicated. The connecting pieces on the bus bridge used to connect the terminals usually need to be integrated in a two-layer or three-layer structure and then injection molded to connect the winding stator inside the motor. The design is relatively complex, the processing is difficult, and the cost is also high. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a bus bridge unit, a motor and a vehicle.

[0005] In a first aspect, a bus bridge unit is provided, comprising:

[0006] A plurality of terminal components, each of which comprises a first connecting terminal and a connecting piece, wherein the first connecting terminal is used to connect the winding structure, and the first connecting terminal is connected to the connecting piece;

[0007] The connecting pieces of all the terminal components do not overlap, and the winding structures connected to the first connecting terminals located on different terminal components are connected via connecting wires.

[0008] As a feasible manner, the connecting pieces are of arc-shaped structure, the terminal parts are arranged at intervals, and all the connecting pieces are arranged in a circular ring shape.

[0009] As an achievable manner, two first connecting terminals are provided on each of the terminal components, and the first connecting terminals connected to the same terminal component are respectively used to connect different winding structures.

[0010] As an implementable manner, each of the terminal components is further provided with a second connecting terminal, and the second connecting terminal is used for connecting to a circuit board.

[0011] As an implementable manner, the first connecting terminal is disposed on the connecting piece and is disposed toward the outside of the connecting piece, and the second connecting terminal is disposed on the connecting piece and extends toward a side surface of the connecting piece.

[0012] As an implementable manner, the terminal component further includes: a retaining frame, the retaining frame wraps the connecting piece and exposes the first connecting terminal and the second connecting terminal.

[0013] As an achievable manner, the retaining frame further includes a limiting protrusion, which is arranged on a side of the terminal component close to the winding structure and protrudes toward the inside of the terminal component for positioning and cooperating with the stator assembly.

[0014] As an achievable manner, the first connecting terminal includes a connecting portion, and the connecting portion is connected to the connecting piece.

[0015] A bending portion, wherein the bending portion is connected with the connecting portion to form an opening, wherein the opening is used to accommodate the lead of the winding structure, and the opening is unobstructed along the direction where the length of the second connecting terminal is located.

[0016] As an achievable manner, a first boss is provided on a side of the connecting portion close to the bending portion, and / or a second boss is provided on a side of the bending portion close to the connecting portion, and the first boss and the second boss are circular bosses and / or square bosses.

[0017] As an achievable manner, the device comprises two parts, a first part and a second part, wherein the first part comprises a plurality of terminal parts, the second part comprises a plurality of terminal parts, the terminal parts located in the first part and the second part are not repeated, the first part and the second part can respectively comprise different second connection terminals, the first part and the second part are respectively connected to the circuit board through different second connection terminals, and are individually controlled by the circuit board. As an achievable manner, the device comprises three terminal parts, the three terminal parts are arranged at intervals, and the second connection terminals on the terminal parts located on both sides are arranged close to the terminal part in the middle.

[0018] As an implementable manner, the first part and the second part have the same structure.

[0019] In a second aspect, a motor is provided, comprising the above-mentioned bus bridge unit;

[0020] It also includes: a stator assembly, which is installed on a side of the bus bridge unit where the second connecting terminal is not provided, and is electrically connected to the terminal component.

[0021] As an achievable manner, the stator assembly includes a plurality of groups of winding units, and the winding units are spliced ​​to form the annular stator assembly;

[0022] Each group of the winding units includes two winding teeth, one winding wire is wound around the two winding teeth, and leads are respectively extended from the two winding teeth, and the leads are used to be welded to the first connecting terminal.

[0023] The winding wires between the winding teeth are wrapped with an insulating protective sleeve.

[0024] As an achievable manner, the two winding teeth in each group of the winding units are arranged at an interval, and the interval between the two winding teeth is used to accommodate the two winding teeth.

[0025] As an achievable manner, the windings on each group of the winding units are respectively wound on two winding teeth from both ends, and the two winding teeth are connected by the connecting wire;

[0026] The two lead wires extending from each group of the winding units are respectively connected to different terminal components.

[0027] According to a third aspect, a vehicle is provided, comprising the above-mentioned motor.

[0028] According to the technical solution provided in the embodiment of the present application, the bus bridge unit 100 is set to a single-layer form, which includes a plurality of terminal components, and the connecting pieces on the terminal components are provided with a first connecting terminal and a second connecting terminal for electrical connection to achieve electrical connection with the winding structure and the circuit board, and the connecting pieces do not overlap to form a single-layer structure. The single-layer structure is relatively simple, with low design and processing difficulty, thereby reducing the cost of components and improving market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 This is a schematic diagram of the terminal in the first viewing angle in this embodiment;

[0031] Figure 2 This is a schematic diagram of the second viewing angle of the terminal in this embodiment;

[0032] Figure 3 This is a schematic diagram of the top view of the terminal structure in this embodiment;

[0033] Figure 4 for Figure 3 A cross-sectional view of

[0034] Figure 5 Schematic diagram of the first terminal structure in this embodiment;

[0035] Figure 6 for Figure 5 A partial enlarged view of

[0036] Figure 7 This is a schematic diagram of a bus bridge unit from a first viewing angle in this embodiment;

[0037] Figure 8 This is a schematic diagram of the bus bridge unit in the present embodiment from a second viewing angle;

[0038] Fig. 9 This is a schematic diagram of the top view of the structure of the bus bridge unit in this embodiment;

[0039] Fig.10 for Fig. 9 A cross-sectional view of

[0040] Fig.11 Schematic diagram of the stator structure in this embodiment;

[0041] Fig.12 Schematic diagram of the structure of the stator assembly in this embodiment;

[0042] Fig.13 Schematic diagram of top view of the stator assembly in this embodiment;

[0043] Fig.14 This is a schematic diagram of the structure of the motor part in this embodiment;

[0044] Fig.15 for Fig.14 A partial enlarged view of

[0045] Fig.16 This is the stator winding principle diagram in this embodiment;

[0046] Fig.17 Schematic diagram of the stator winding circuit in this embodiment;

[0047] Fig.18 Schematic diagram of the motor structure in this embodiment;

[0048] Fig.19 Schematic diagram of the connection between the motor bus bridge unit and the circuit board in this embodiment.

[0049] In the above picture:

[0050] The bus bridge unit 100,

[0051] Terminal component 101, first terminal 120, second terminal 110,

[0052] Connecting piece 111, second connecting terminal 112, first connecting terminal 113,

[0053] Connecting portion 1131, bending portion 1132, second boss 1133,

[0054] The first boss 1134, the opening 1135, the connecting pin 114,

[0055] Retaining frame 130, limiting protrusion 131,

[0056] Stator assembly 200,

[0057] Winding unit 210, winding teeth 211, winding wire 212,

[0058] Lead wire 213, insulating protective cover 214,

[0059] Casing 400, pulley 500, rear end cover 600,

[0060] The first layer controller 900, the second layer controller 800, the third layer controller 700,

[0061] Heat sink 910 and electric control protection cover 920 . DETAILED DESCRIPTION

[0062] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0063] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0064] Please refer to Figure 7-Figure 10 As shown, this embodiment provides a bus bridge unit 100, including:

[0065] A plurality of terminal components 101, each of the terminal components 101 comprises a first connecting terminal 113 and a connecting piece 111, the first connecting terminal 113 is used to connect the winding structure, and the first connecting terminal 113 is connected to the connecting piece 111;

[0066] The connecting pieces 111 of all the terminal parts 101 do not overlap, and the winding structures connected to the first connecting terminals 113 on different terminal parts 101 are connected through connecting wires. In this embodiment, the bus bridge unit 100 is set in a single-layer form, which includes a plurality of terminal parts 101. The connecting pieces on the terminal parts 101 are provided with first connecting terminals for electrical connection to achieve electrical connection with the winding structure, and the connecting pieces do not overlap to form a single-layer structure. The single-layer structure is relatively simple, with low design and processing difficulty, which reduces the cost of components and improves market competitiveness.

[0067] like Figures 7 to 10is a schematic structural diagram of the bus bridge unit 100 in this embodiment, wherein the connecting pieces 111 are arc-shaped structures, the terminal components 101 are arranged at intervals, and all the connecting pieces 111 are arranged in a ring.

[0068] The structures of the multiple terminal components 101 provided in this embodiment are not completely the same, but each terminal has a corresponding connecting piece 111, and the center and radius of the connecting piece 111 of each terminal are the same, so as to facilitate the positioning and installation of multiple terminals. The bus bridge unit 100 includes multiple terminal components 101, such as 110 and 120, and each terminal component 101 has an arc structure, so the multiple terminal components 101 are arranged at intervals to form a circular ring, and the center of the arc structure of each terminal component 101 is the same, so the multiple terminal components 101 are arranged on the circumference of a virtual ring. This arrangement makes the arc centers of the terminal components 101 concentrated at the same point, which is more convenient and easy to operate during the positioning and installation of multiple terminal components 101, and the setting of the bus bridge unit 100 is more convenient.

[0069] Optionally, two first connecting terminals 113 are provided on each of the terminal components 101 , and the first connecting terminals 113 connected to the same terminal component 101 are respectively used to connect different winding structures.

[0070] Each terminal component 101 is provided with two first connecting terminals 113, wherein the two first connecting terminals 113 are used to connect to the winding structure on the stator assembly 200, wherein the winding structure on the stator assembly 200 is staggered, and adjacent winding structures are connected to different first connecting terminals 113 on the same terminal component 101.

[0071] Optionally, each of the terminal components 101 is further provided with a second connecting terminal 112, and the second connecting terminal 112 is used to connect to a circuit board.

[0072] Each terminal component 101 is also provided with a second connection terminal 112, which is used to achieve connection with the circuit board, wherein the second connection terminal 112 is a long structure, forms a certain angle with the connection piece 111, and faces the upper side of the connection piece 111 ( Figure 1The second connection terminal 112 is connected to the circuit board through the connection pins 114 on the second connection terminal 112. The second connection terminal 112 is preferably arranged perpendicular to the connection sheet 111, and the second connection terminal 112 of the plurality of terminals forms a cylindrical structure. Among them, two connection pins 114 are arranged on the top of the second connection terminal 112 for electrically connecting to the circuit board. The top of the second connection terminal 112 can be optionally arranged in a U-shaped or V-shaped design, so that when the second connection terminal 112 is connected to the circuit board, the connection pins 114 used for welding appear in pairs, the welding points are obvious, welding is convenient and error-prone, and welding efficiency is improved.

[0073] Optionally, the first connection terminal 113 is disposed on the connection piece 111 and is disposed toward the outside of the connection piece 111 , and the second connection terminal 112 is disposed on the connection piece 111 and extends toward a side surface of the connection piece 111 .

[0074] The first connecting terminal 113 is a shorter structure, connected to the connecting piece 111, and is arranged toward the outside of the connecting piece 111, that is, outside the circular ring formed by multiple terminals. The first connecting terminal 113 is welded to the winding of the stator assembly 200, and the first connecting terminal 113 is arranged outside the circular ring to facilitate the operation of the welding step. The first connecting terminal 113 includes multiple parts, but the first connecting terminal 113 as a whole is preferably arranged vertically to the connecting piece 111.

[0075] Optionally, the terminal component 101 further includes: a retaining frame 130 , wherein the retaining frame 130 wraps the connecting piece 111 and exposes the first connecting terminal 113 and the second connecting terminal 112 .

[0076] The bus bridge unit 100 is composed of a retaining frame 130 and a plurality of terminal components 101, wherein the terminal components 101 have a structure as shown in FIG. Figures 1 to 6 As shown, the plurality of terminal components 101 are spaced apart from each other and are arranged in a Figure 1In the form shown, a plurality of terminal components 101 are fixed by a retaining frame 130 to form a complete bus bridge unit 100, wherein the retaining frame 130 is an insulating material, and is prepared by plastic and glass fiber material, and has the characteristics of high temperature resistance, low temperature resistance, high strength and good insulation performance, and the corresponding retaining frame 130 structure is formed by injection molding or casting molding; each terminal component 101 has a different connection terminal structure bent to the side, the second connection terminal 112 is used as a connection pin 114, and the first connection terminal 113 is used as the first connection terminal 113. The bus bridge unit in this embodiment is to achieve a six-pin form, and a group of connection pins 114 is set on each terminal, and each group of connection pins 114 has two pins. Therefore, six terminals are arranged in the embodiment to form Figure 1 In the structure shown, the six terminals are then wrapped and fixed by the retaining frame 130, and the six pins are exposed so as to be welded and fixed to the circuit board.

[0077] Furthermore, the first connection terminal 113 includes a connection portion 1131, and the connection portion 1131 is connected to the connection piece 111.

[0078] The bending portion 1132 is connected with the connecting portion 1131 to form an opening 1135 . The opening 1135 is used to accommodate the lead wire 213 of the stator assembly 200 . The opening 1135 is unobstructed along the length direction of the second connecting terminal 112 .

[0079] refer to Figure 6 and Figure 7 As shown, a specific arrangement form of the terminal component 101 is provided, the terminal component 101 is a first terminal 120, and a specific structure of the first connecting terminal 113 on the first terminal 120, wherein the first connecting terminal 113 on the second terminal 110 and Figure 7The structures shown are exactly the same, and the only difference between the first terminal 120 and the second terminal 110 is that the positions of the first connection terminal 113 and the second connection terminal 112 are different, and the lengths of the connection piece 111 are different. Each first connection terminal 113 includes a connection portion 1131 and a bending portion 1132 connected to the connection piece 111, and the connection portion 1131 and the bending portion 1132 form a structure with an opening 1135, and the opening 1135 is set to a V-shaped or U-shaped structure, through which the winding on the stator assembly 200 is accommodated and fixed, and then the winding is welded to the first connection terminal 113, therefore, the opening 1135 structure formed by the connection portion 1131 and the bending portion 1132 has a channel that is unobstructed up and down, and the channel is unobstructed along the length direction of the second connection terminal 112, so that the winding on the stator assembly 200 can be accommodated at the position of the opening 1135 after extending out of the stator assembly 200, forming a structure as shown in FIG. Fig.15 The first connection terminal 113 and the connection piece 111 described in the above embodiment are arranged vertically, which can be specifically embodied in that the connection portion 1131 and the connection piece 111 are arranged vertically.

[0080] Optionally, the angle of the opening 1135 is 120°-160°. Since the opening 1135 is for accommodating and welding the winding on the stator assembly 200, the angle of the mouth is set to 120°-160°, which is convenient for the firmness of the welding between the winding and the first connection terminal 113, and also convenient for adding flux auxiliary materials during the welding process.

[0081] Furthermore, a first boss 1134 is provided on a surface of the connecting portion 1131 close to the bending portion 1132, and / or a second boss 1133 is provided on a surface of the bending portion 1132 close to the connecting portion 1131, and the first boss 1134 and the second boss 1133 are circular bosses and / or square bosses.

[0082] refer to Figure 6As shown, in this embodiment, the opening 1135 structure formed by the connecting portion 1131 and the bending portion 1132 is used to accommodate and weld the winding. In order to improve the welding efficiency and make the opening 1135 in a position where the winding can be firmly welded, it is preferred to provide a second boss 1133 on the bending portion 1132, or a first boss 1134 on the connecting portion 1131, or provide a first boss 1134 and a second boss 1133 at the same time, wherein the first boss 1134 and the second boss 1133 are both provided on opposite surfaces of the two parts, so that the space inside the opening 1135 structure formed by the bending portion 1132 and the connecting portion 1131 is smaller, and the winding is more likely to contact the bending portion 1132 or the connecting portion 1131 when in the opening 1135, so that the structure after welding is more secure and not easy to fall off. The optional first boss 1134 and the second boss 1133 can be provided as structures with the same cross-section, or can be provided as structures with different cross-sections, for example, to form Figure 6 In the form shown in , the first boss 1134 is set as a square boss, the second boss 1133 is set as a circular boss, and the winding is in contact with the first boss 1134 at the opening 1135, and the first boss 1134 has a larger contact surface.

[0083] Optionally, the height of the first boss 1134 and the second boss 1133 is 0.5mm-1mm. The boss height is moderate, which can meet the welding requirements, and can also facilitate the installation of the bus bridge unit 100 and the stator assembly 200 without installation difficulties. The first terminal 110 and the second terminal 120 provided in the above embodiment are both made of copper material, and the surface of the terminal component 101 is tin-plated, and the terminal is preferably prepared by flat stamping and bending, which reduces the complexity of stamping and improves production efficiency; and the thickness of each part of the terminal is between 0.8mm-1.5mm, and the height of the first boss 1134 and the second boss 1133 is slightly smaller than the thickness of other parts of the terminal, which provides a smaller opening 1135 structure for the winding of the stator assembly 200 without affecting the thickness of the entire terminal component 101.

[0084] Optionally, it includes two parts, a first part I and a second part II, the first part I includes a plurality of terminal parts 101, the second part II includes a plurality of terminal parts 101, the terminal parts 101 located in the first part I and the second part II are not repeated, the first part I and the second part II can respectively include different second connection terminals 112, the first part I and the second part II are respectively connected to the circuit board through different second connection terminals 112, and are individually controlled by the circuit board. Terminal part 101

[0085] refer to Figures 1 to 3As shown, in this embodiment, the terminal component 101 is divided into two parts. Figure 3 With the horizontal line as the axis of symmetry, the upper and lower parts are respectively divided into a first part component I and a second part component II, each of which includes a plurality of terminal components 101 to achieve connection with a circuit board and a winding assembly through the first connecting terminals 113 and the second connecting terminals 112 on the corresponding terminal components 101, and the first part component I and the second part component II are respectively connected to the circuit board, and the circuit board can realize separate control of the two parts to realize a redundant structure, and the formed structure has better reliability and stability.

[0086] Furthermore, the partial component includes three terminal components 101 , the three terminal components 101 are arranged at intervals, and the second connecting terminals on the terminal components 101 on both sides are arranged close to the terminal component 101 in the middle.

[0087] The terminal component 101 in this embodiment can be configured in various forms, such as Figure 1 The structure shown in the first terminal 110 and the second terminal 120, and Figure 1 A specific arrangement form of the terminal component 101 in the bus bridge unit 100 is provided. The bus bridge unit 100 in this embodiment includes six terminals, and the structure of each terminal is not exactly the same. This embodiment preferably provides two structures of terminals, which are divided into a first terminal 120 and a second terminal 110, wherein the difference between the first terminal 120 and the second terminal 110 is that the positions of the second connection terminal 112 and the two first connection terminals 113 are different. If the second connection terminal 112 is arranged between the two first connection terminals 113, it is a first terminal 120, and two first terminals 120 are provided and symmetrically arranged. If the second connection terminal 112 is arranged on the side of two welding terminals, it is a second terminal 110, and four second terminals 110 are provided, and every two second terminals 110 are placed on both sides of a first terminal 120, and the second terminals 110 are also placed symmetrically, and the symmetry axis is the diameter of the ring formed by the six terminals ( Figure 3 In the embodiment, the terminals are represented by a cross structure as shown in the figure. The types of terminals provided in this embodiment are relatively small. The corresponding preparation cost is reduced due to the small number of terminal types, and the cost of the motor is also reduced. In this embodiment, the first terminal 120 and the second terminal 110 both adopt a three-section structure, wherein the input and output of current are realized through the second connection terminal 112, and the second connection terminal 112 realizes direct contact with the circuit board, and the welding contact with the enameled wire on the stator assembly 200 is realized through the first connection terminal 113, thereby realizing electrical connection with the winding on the stator assembly 200. Figure 1The arrangement in the above embodiment arranges the first connection terminals 113 on each side more closely, so that when the bus bridge unit 100 is connected to the circuit board, the welding points are also more closely connected, which is convenient for operation. The specific arrangement is matched according to the welding interface position of the circuit board. The design of the same structure of some terminals or the same structure of all terminals makes the processing simpler, reduces the process difficulty, and reduces the cost of parts.

[0088] Optionally, the first part component I and the second part component II have the same structure.

[0089] refer to Figures 1 to 3 As shown, in this embodiment, the terminal component 101 is set to a symmetrical form, and the first part and the second part have the same structure, and are respectively used to connect to different winding structures to form the same winding and connection form, so that the bus bridge unit and the stator assembly are called a symmetrical structure after being connected, and the symmetrical first part and the second part can be electrically connected independently to form a redundant structure; at the same time, the same structure simplifies the preparation process.

[0090] Terminal component 101Terminal component 101The terminal component 101 provided in this embodiment is 110 or 120, and a plurality of terminals surround to form a bus bridge unit 100, wherein the plurality of terminal components 101 can be arranged in the form of the same structure, for example Figure 1 All the terminal components 101 are set to the structure of 110, or all are set to the structure of 120, which can realize the connection between the bus bridge unit 100 and the circuit board; or the terminal components 101 in the terminal component 101 are set to different structures, which can be specifically set according to the welding points left on the circuit board. In this embodiment, the following is given Figure 1 This is one arrangement shown, but it is not the only one.

[0091] Furthermore, the retaining frame 130 also includes a limiting protrusion 131 , which is disposed on a side of the terminal component 101 close to the winding structure and protrudes toward the inside of the terminal component 101 for positioning and cooperating with the stator assembly 200 .

[0092] The retainer 130 in this embodiment wraps a plurality of terminals. Figure 1The six terminals are fixed therein, wherein the retaining frame 130 includes an annular portion that fixes the connecting piece 111 on the terminal component 101, and a portion that wraps the second connecting terminal 112, and the top connecting pin 114 of the second connecting terminal 112 needs to be exposed to facilitate its contact and welding with the circuit board. In addition, the retaining frame 130 also includes a limiting protrusion 131, which is arranged on a side of the connecting piece 111 away from the second connecting terminal 112, that is, a side close to the stator assembly 200, and the positioning and matching with the stator assembly 200 is achieved through the limiting protrusion 131.

[0093] In this embodiment, the limiting protrusion 131 is generally arranged at the same position as the second connection terminal 112. The number of the limiting protrusions 131 can be determined according to actual needs. The limiting protrusion 131 is arranged at the position where the second connection terminal 112 is located, so that the limiting protrusion 131 and the part wrapping the second connection terminal 112 are prepared together and the corresponding inclined plate can be added as a reinforcing rib, so that the strength of the retaining frame 130 is higher. Figure 7 As shown, the present embodiment preferably provides six limiting protrusions 131 structures, and the limiting protrusions 131 are provided one-to-one with the second connecting terminals 112. The limiting protrusions 131 limit the radial rotation of the bus bridge unit 100, thereby providing product safety performance and being able to be used for process positioning to improve production efficiency.

[0094] Optionally, the cross-section of the limiting protrusion 131 is a triangular structure, mainly to match the interval between adjacent winding teeth 211 on the stator assembly 200. If the interval between adjacent winding teeth 211 on the stator assembly 200 is other structures, the structure of the corresponding limiting protrusion 131 can also be changed accordingly to facilitate the installation and positioning of the stator assembly 200 and the bus bridge unit 100.

[0095] This embodiment also provides a motor, including the above-mentioned bus bridge unit 100;

[0096] The present invention also includes: a stator assembly 200 , which is installed on a side of the bus bridge unit 100 where the second connection terminal 112 is not provided, and is electrically connected to the terminal component 101 .

[0097] The motor includes two parts connected to each other, the upper part is a bus bridge unit 100, the bus bridge unit 100 is used to extend the connection pin 114 so as to connect to the circuit board structure through the connection pin 114, and the lower part is a stator assembly 200, the stator assembly 200 is the winding structure mentioned above, which is used to wind the line to form a circuit board structure. Fig.17The windings of the circuit diagram shown, the bus bridge unit 100 and the stator assembly 200 are installed together, and a rotation-stopping structure cooperating with the stator assembly 200 is provided on the bus bridge unit 100 to limit the mutual movement between the bus bridge unit 100 and the stator assembly 200 in the bus bridge unit, and prevent the axial movement of the bus bridge unit 100, so that the connection pins 114 of the bus bridge unit can be more accurately identified. At the same time, the bus bridge unit 100 and the windings extending from the stator assembly 200 are welded to achieve electrical connection.

[0098] like Figures 11 to 13 FIG. 2 is a schematic structural diagram of a stator assembly 200 provided in this embodiment, wherein the stator assembly 200 includes a plurality of winding units 210 , and the winding units 210 are spliced ​​to form a ring-shaped stator assembly 200 ;

[0099] Each group of the winding units 210 includes two winding teeth 211, and a winding wire 212 is wound around the two winding teeth 211. Lead wires 213 extend from the two winding teeth 211, respectively, and the lead wires 213 are used to be welded to the first connection terminal 113.

[0100] The winding wire 212 between the winding teeth 211 is wrapped with an insulating protective cover 214 .

[0101] The stator assembly 200 provided in this embodiment is formed into an annular structure by splicing multiple groups of winding units 210. The annular structure matches the circular ring structure of the bus bridge unit 100 in the above embodiment. The radius of the two is set to be similar and the center of the circle coincides to facilitate the installation of the stator assembly 200 and the bus bridge unit 100. Fig.12 The structure diagram of a single winding unit 210 is shown. Each winding unit 210 is provided with two winding teeth 211, so that the two winding teeth 211 can realize the winding 212 of two resistors, and the two winding teeth 211 can adopt a Δ-type (triangular-type) dual redundant winding method. The winding principle and circuit principle refer to Fig.16 and Fig.17 As shown, the winding method can be achieved by using a winding wire to first pass through a winding tooth 211 for winding, and then to the second winding tooth 211 for winding. The two extended winding ends are leads 213, which are the wire head and wire tail respectively. The extended wire head and wire tail are used to be welded with the bus bridge unit 100 to achieve electrical connection between the winding and the terminal on the stator assembly 200; the triangular winding method used in this embodiment is suitable for enameled wire with a smaller wire diameter that needs to be wound, and the formed stator assembly 200 has a high full slot rate and utilization rate.

[0102] In this embodiment, it is necessary to implement Fig.17The winding in the circuit diagram shown in the figure is to splice the windings of the two circuit diagrams into two parts, and the two resistors connected in series in each circuit diagram are wound using the above-mentioned triangular winding method to form a group of winding units 210. Therefore, the circuit diagram on the left forms three groups of winding units 210 on one side, which can form half of the circular structure, and the circuit diagram on the right forms three groups of winding units 210 on one side, which can form the other half of the circular structure, forming a circuit diagram as shown in FIG. Fig.12 The structure shown in FIG. 1 includes two parts on the left and right of the structure, respectively. Fig.17 The winding and assembly method of a circuit schematic in the figure, the two parts are spliced ​​together to form a circuit schematic diagram. Fig.13 The structure shown is then installed with the bus bridge unit 100 , and the extended lead wire 213 is installed and welded with the first connection terminal 113 on the bus bridge unit 100 in a one-to-one correspondence, thereby achieving electrical connection between the bus bridge unit 100 and the stator assembly 200 .

[0103] Furthermore, the two winding teeth 211 in each group of the winding units 210 are arranged at intervals, and the interval between the two winding teeth 211 is used to accommodate the two winding teeth 211 .

[0104] In order to facilitate the installation of the stator assembly 200, the winding teeth 211 in each winding unit 210 are arranged in a spaced manner and are not close to each other. Fig.11 As shown, a certain gap is set between the winding teeth 211 on each winding group. Therefore, when the three winding units 210 are installed, the winding teeth 211 on the adjacent winding units 210 can be placed at the interval position, so that each three winding units 210 can be spliced ​​and assembled to form a semi-cylindrical structure, which is not easy to be scattered, and the installation of the stator assembly 200 is more convenient. Preferably, the interval between the two winding teeth 211 on each winding unit 210 is set to a width that can accommodate the two winding teeth 211. Under this setting mode, each three winding units 210 can be spliced ​​and assembled to form a semi-cylindrical structure. Fig.12 In the structure shown, if the numbers of the two winding teeth 211 on each group of winding units 210 are the same, the second winding tooth 211 and the third winding tooth 211 are arranged between the first winding tooth 211, the third winding tooth 211 and the first winding tooth 211 are arranged between the second winding tooth 211, and the first winding tooth 211 and the second winding tooth 211 are arranged between the third winding tooth 211. The winding unit 210 on the other side is also arranged in the same way, and the fifth winding tooth 211 and the sixth winding tooth 211 are arranged between the fourth winding tooth 211. After the two parts of the winding unit 210 are assembled, they are laser welded to form a complete circular structure. For details, see Fig.13 The arrangement of the winding unit 210 described above makes the installation of the entire bus bridge unit much simpler and reduces the difficulty of assembly.

[0105] In addition, an insulating protective cover 214 is provided on the winding wire between the spaced winding teeth 211 in each group of winding units 210 to protect the exposed portion of the winding wire.

[0106] Furthermore, the winding wire 212 on each group of the winding units 210 is wound on the two winding teeth 211 from both ends, and the two winding teeth 211 are connected by the connecting wire;

[0107] The two lead wires 213 extending from each group of the winding units 210 are respectively connected to different terminal components 101 .

[0108] In this embodiment, the winding method of each group of winding units 210 is the same. The two ends of a winding wire are respectively wound on two spaced winding teeth 211. The spaced winding teeth 211 are connected by a connecting wire, which is insulated and protected by an insulating protective sleeve. The connecting wire and the winding wire on the winding teeth 211 are the same winding wire. After the stator assembly 200 in this embodiment is installed, twelve lead wires 213 are extended, corresponding to the twelve first connection terminals 113 of the above-mentioned bus bridge unit 100. The lead wire 213 ends are welded and fixed to the first connection terminals 113, and the two first connection terminals 113 on each terminal in the bus bridge unit 100 are respectively connected to the head and tail of the lead wire 213 ends in the adjacent winding unit 210. In addition, the assembled stator assembly 200 in this embodiment is a structure with a circular ring cross-section, and the gap between adjacent winding teeth 211 can be regarded as a structure close to a triangle. Therefore, the limiting protrusion 131 matching the stator assembly 200 is set to have a triangular cross-section, which makes the installation between the stator assembly 200 and the bus bridge unit 100 more convenient and has a better anti-rotation effect on the bus bridge unit 100 or the stator assembly 200.

[0109] The motor in this embodiment adopts the above-mentioned bus bridge unit 100 and stator assembly 200. The bus bridge unit 100 is a single-layer terminal structure with a simple design, which simplifies the difficulty of design and parts processing, reduces the cost of parts and motors, and improves market competitiveness. At the same time, the stator assembly 200 in the bus bridge unit adopts a triangular winding design, and its winding process is simple and easy to implement. The triangular winding design is a dual redundant design, which can greatly improve the safety of the motor and thus improve the safety performance of the car; the triangular winding extends out of three groups of six connecting pins 114, realizing a six-phase terminal structure, which reduces the current by half compared to the three-phase terminal, and can greatly reduce the risk of current motor heating failure.

[0110] In addition, the welding in the motor structure provided in this embodiment is more stable, the welding strength is higher, the various positions of the motor are easier to identify, and the installation is more convenient.

[0111] like Fig.18 The figure shows a schematic diagram of the motor structure provided in the present embodiment, wherein the bus bridge unit is installed in a housing 400, a pulley 500 is further provided at the end of the housing 400, a rotor assembly 300 is further provided in the bus bridge unit, a rear end cover 600 is installed above the bus bridge unit, a circuit board is arranged on the rear end cover 600, and the present embodiment preferably arranges a three-layer circuit board structure, which are a first-layer controller 900, a second-layer controller 800 and a third-layer controller 700 from top to bottom, the third-layer controller 700 is the circuit board directly contacting the bus bridge unit for welding as mentioned in the above embodiment, wherein a heat sink 910 is further provided between the first-layer controller 900 and the second-layer controller 800, and an electric control protective cover 920 is installed above the first-layer controller 900; refer to Fig.19 It is a schematic diagram showing the connection between the motor's bus bridge unit and the third-layer controller 700, i.e., the circuit board, wherein three groups of connecting pins 114 on the bus bridge unit are exposed to the third-layer controller setting, providing three groups of welding positions, and the clear positions facilitate the implementation of the welding steps.

[0112] This embodiment also discloses an electric power steering system, which uses the above-mentioned motor as the motor of the steering system.

[0113] This embodiment also provides a vehicle, including the above-mentioned electric power steering system.

[0114] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the orientation words "inside" and "outside" refer to the inside and outside relative to the contours of the components themselves. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0115] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0116] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A bus bridge unit, characterized in that: include: A plurality of terminal components, each of which comprises a first connecting terminal and a connecting piece, wherein the first connecting terminal is used to connect the winding structure, and the first connecting terminal is connected to the connecting piece; The connecting pieces of all the terminal components do not overlap, and the winding structures connected to the first connecting terminals located on different terminal components are connected via connecting wires.

2. The bus bridge unit according to claim 1, characterized in that: The connecting pieces are of arc-shaped structure, the terminal parts are arranged at intervals, and all the connecting pieces are arranged in a circular ring shape.

3. The bus bridge unit according to claim 1, characterized in that: Each of the terminal components is provided with two first connecting terminals, and the first connecting terminals connected to the same terminal component are respectively used to connect different winding structures.

4. The bus bridge unit according to claim 1, characterized in that: Each of the terminal components is also provided with a second connecting terminal, and the second connecting terminal is used for connecting to a circuit board.

5. The bus bridge unit according to claim 4, characterized in that: The first connection terminal is arranged on the connection piece and is arranged toward the outside of the connection piece, and the second connection terminal is arranged on the connection piece and extends toward a side surface of the connection piece.

6. The bus bridge unit according to claim 4, characterized in that: The terminal component further includes a retaining frame, which wraps the connecting piece and exposes the first connecting terminal and the second connecting terminal.

7. The bus bridge unit according to claim 6, characterized in that: The retaining frame further comprises a limiting protrusion, which is arranged on a side of the terminal component close to the winding structure and protrudes toward the inside of the terminal component for positioning and cooperating with the stator assembly.

8. The bus bridge unit according to claim 4, characterized in that: The first connecting terminal includes a connecting portion, and the connecting portion is connected to the connecting piece. A bending portion, wherein the bending portion is connected with the connecting portion to form an opening, wherein the opening is used to accommodate the lead of the winding structure, and the opening is unobstructed along the direction where the length of the second connecting terminal is located.

9. The bus bridge unit according to claim 8, characterized in that: A first boss is provided on one side of the connecting portion close to the bending portion, and / or a second boss is provided on one side of the bending portion close to the connecting portion. The first boss and the second boss are circular bosses and / or square bosses.

10. The bus bridge unit according to claim 4, characterized in that: The invention comprises two partial components, a first partial component and a second partial component, wherein the first partial component comprises a plurality of terminal components, and the second partial component comprises a plurality of terminal components, and the terminal components located in the first partial component and the second partial component are not repeated, and the first partial component and the second partial component can respectively comprise different second connecting terminals, and the first partial component and the second partial component are respectively connected to the circuit board via different second connecting terminals and are individually controlled by the circuit board.

11. The bus bridge unit according to claim 10, characterized in that: The partial components include three terminal components, the three terminal components are arranged at intervals, and the second connecting terminals on the terminal components on both sides are arranged close to the middle terminal component.

12. The bus bridge unit according to claim 10, characterized in that: The first part and the second part have the same structure.

13. A motor, characterized in that: A bus bridge unit comprising any one of claims 1 to 12; It also includes: a stator assembly, which is installed on a side of the bus bridge unit where the second connecting terminal is not provided, and is electrically connected to the terminal component.

14. The motor according to claim 13, characterized in that The stator assembly includes a plurality of winding units, and the winding units are spliced ​​to form a ring-shaped stator assembly; Each group of the winding units includes two winding teeth, one winding wire is wound around the two winding teeth, and leads are respectively extended from the two winding teeth, and the leads are used to be welded to the first connecting terminal. The winding wires between the winding teeth are wrapped with an insulating protective sleeve.

15. The motor according to claim 14, characterized in that The two winding teeth in each group of the winding units are arranged at intervals, and the interval between the two winding teeth is used to accommodate the two winding teeth.

16. The motor according to claim 14, characterized in that The winding wires on each group of the winding units are respectively wound on the two winding teeth from both ends, and the two winding teeth are connected by the connecting wire; The two lead wires extending from each group of the winding units are respectively connected to different terminal components.

17. A vehicle, characterized in that: A motor comprising any one of claims 13-16.

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