A motor busbar structure

Abstract

The utility model relates to motor assembly technical field, concretely relates to a motor busbar structure: including three -phase PIN, resin shell, U phase busbar, V phase busbar and W phase busbar, the upper surface of resin shell is provided with PIN insulation sheath in the front, the inside of PIN insulation sheath is provided with three -phase PIN, W phase busbar and V phase busbar are arranged in the axial partial overlap, U phase busbar is arranged in W phase radial outer side and is axially dislocated with it, form the compact three -dimensional layout of axial and radial combination, the overall axial height of busbar has been reduced significantly, meet the motor miniaturization demand. In the production level, the busbar structure each phase connection point is definite, has spared the complicated shaping, the cumbersome step of surrounding and positioning to the copper wire in disorder, has simplified the assembly process, has reduced the dependence to the precision machining and skilled operation, to reach the compact structure target while, also has realized the convenient and efficient of production process.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, and in particular to a motor busbar structure. Background Technology

[0002] As the core power source of modern industry, the miniaturization and efficiency of electric motors have always been the focus of technological development. In brushless DC motors, the busbar, as an important conductive component connecting the stator windings and the external controller, directly affects the motor's performance, size, and manufacturing cost.

[0003] Currently, there are three main types of common motor busbar structures: The first is a planar axial busbar structure, where multiple layers of conductive sheets are stacked along the motor's axis and isolated by insulating material. The second is a vertical radial busbar structure. While this structure alleviates axial space constraints to some extent, it often leads to an increase in the radial dimension of the busbar. The third type uses a resin-made wire frame, with the copper wires used as busbars pre-shaped and threaded through the frame. Although this method allows for a smaller package size, the manufacturing process is extremely complex.

[0004] In summary, the existing motor busbar structure presents a contradiction between axial space occupation and manufacturing process complexity, making it difficult to simultaneously meet the needs of motor miniaturization and production convenience. Utility Model Content

[0005] The purpose of this utility model is to provide a motor busbar structure that solves the contradiction between the axial space occupation and the complexity of the manufacturing process in the existing motor busbar structure, making it difficult to simultaneously meet the needs of motor miniaturization and convenient production.

[0006] To achieve the above objectives, this utility model provides a motor busbar structure, which includes three-phase pins, a resin shell, a U-phase busbar, a V-phase busbar, and a W-phase busbar. The front end of the upper surface of the resin shell is provided with a pin insulating sleeve, and the three-phase pins are provided inside the pin insulating sleeve. The resin casing contains, from bottom to top, stacked W-phase busbars and V-phase busbars, which partially overlap in the axial direction. The middle section of the W-phase busbar is connected to the W phase of the three-phase PIN, and the middle section of the V-phase busbar is connected to the V phase of the three-phase PIN. The resin casing also contains a U-phase busbar, which is located outside the W-phase busbars, and the middle section of the U-phase busbar is connected to the U phase of the three-phase PIN.

[0007] The U-phase busbar is provided with four first welding claws. The end of each first welding claw away from the U-phase busbar extends to the outside of the resin shell. Two of the first welding claws are located at the end of the U-phase busbar, and the other two are located on both sides of the U-phase of the three-phase PIN.

[0008] The V-phase busbar is provided with four second welding claws. The end of each second welding claw away from the V-phase busbar extends to the outside of the resin shell. Two of the second welding claws are located at the end of the V-phase busbar, and the other two are located on both sides of the V-phase of the three-phase PIN.

[0009] The W-phase busbar is provided with four third welding claws. The end of each third welding claw away from the W-phase busbar extends to the outside of the resin shell. Two of the third welding claws are located at the end of the W-phase busbar, and the other two are located on both sides of the W phase of the three-phase PIN.

[0010] The resin shell is provided with a busbar support leg on its exterior.

[0011] This utility model discloses a motor busbar structure, including three-phase pins, a resin shell, a U-phase busbar, a V-phase busbar, and a W-phase busbar. The front end of the upper surface of the resin shell is provided with a pin insulating sleeve, and the three-phase pins are disposed inside the pin insulating sleeve. The W-phase busbar and the V-phase busbar are arranged to partially overlap axially, while the U-phase busbar is positioned radially outside the W-phase busbar and axially offset from it, forming a compact three-dimensional layout combining axial and radial elements. This significantly reduces the overall axial height of the busbar, meeting the requirements for motor miniaturization. In terms of production, the connection points of each phase of this busbar structure are clearly defined, eliminating the tedious steps of complex shaping, winding, and positioning of scattered copper wires, simplifying the assembly process, and reducing reliance on precision machining and skilled operation. Thus, while achieving a compact structure, it also realizes convenient and efficient production processes. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the motor busbar structure provided by this utility model.

[0014] Figure 2 This is a partial structural diagram of the motor busbar structure provided by this utility model.

[0015] 101-Three-phase PIN, 102-Resin housing, 103-U-phase busbar, 104-V-phase busbar, 105-W-phase busbar, 106-PIN insulating sleeve, 107-W-phase, 108-V-phase, 109-U-phase, 110-First welding claw, 111-Second welding claw, 112-Third welding claw, 113-Busbar support leg. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0017] Please see Figure 1 and Figure 2 This utility model provides a motor busbar structure, which includes three-phase PIN101, resin shell 102, U-phase busbar 103, V-phase busbar 104 and W-phase busbar 105. The front end of the upper surface of the resin shell 102 is provided with a PIN insulating sleeve 106, and the three-phase PIN101 is provided inside the PIN insulating sleeve 106. The resin housing 102 contains, from bottom to top, stacked W-phase busbar 105 and V-phase busbar 104, which partially overlap in the axial direction. The middle section of W-phase busbar 105 is connected to W-phase 107 of the three-phase PIN 101, and the middle section of V-phase busbar 104 is connected to V-phase 108 of the three-phase PIN 101. The resin housing 102 also contains U-phase busbar 103, which is located outside W-phase busbar 105. The middle section of U-phase busbar 103 is connected to U-phase 109 of the three-phase PIN 101.

[0018] In this embodiment, the W-phase busbar 105 and the V-phase busbar 104 are arranged to partially overlap axially, while the U-phase busbar 103 is positioned radially outside the W-phase 107 and axially offset from it, forming a compact three-dimensional layout that combines axial and radial elements. This significantly reduces the overall axial height of the busbar, meeting the requirements for motor miniaturization. At the manufacturing level, the connection points of each phase in this busbar structure are clearly defined, eliminating the tedious steps of complex shaping, winding, and positioning of scattered copper wires. This simplifies the assembly process and reduces reliance on precision machining and skilled operation, thus achieving both a compact structure and convenient and efficient production.

[0019] Furthermore, the U-phase busbar 103 is provided with four first welding claws 110. Each first welding claw 110 extends to the outside of the resin housing 102 at one end away from the U-phase busbar 103. Two of the first welding claws 110 are located at the end of the U-phase busbar 103, and the other two first welding claws 110 are located on both sides of the U-phase 109 of the three-phase PIN 101.

[0020] Furthermore, the V-phase busbar 104 is provided with four second welding claws 111. Each second welding claw 111 extends to the outside of the resin housing 102 from one end away from the V-phase busbar 104. Two of the second welding claws 111 are located at the end of the V-phase busbar 104, and the other two second welding claws 111 are located on both sides of the V-phase 108 of the three-phase PIN 101.

[0021] Furthermore, the W-phase busbar 105 is provided with four third welding claws 112. Each third welding claw 112 extends to the outside of the resin shell 102 from one end away from the W-phase busbar 105. Two of the third welding claws 112 are located at the ends of the W-phase busbar 105, and the other two third welding claws 112 are located on both sides of the W-phase 107 of the three-phase PIN 101.

[0022] In this embodiment, the 12 welding claws, consisting of the four first welding claws 110, the four second welding claws 111, and the four third welding claws 112, can be evenly distributed on the side of the resin shell 102 where the PIN insulating sheath 106 is not provided. Each welding claw is formed by stamping and bending a planar busbar (the U-phase busbar 103, the V-phase busbar 104, and the W-phase busbar 105) and is integral with the planar busbar.

[0023] Furthermore, the resin housing 102 is provided with a busbar support leg 113 on its exterior.

[0024] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A motor busbar structure, characterized in that, It includes a three-phase PIN, a resin housing, a U-phase busbar, a V-phase busbar, and a W-phase busbar. The front end of the upper surface of the resin housing is provided with a PIN insulating sleeve, and the three-phase PIN is provided inside the PIN insulating sleeve. The resin casing contains, from bottom to top, stacked W-phase busbars and V-phase busbars, which partially overlap in the axial direction. The middle section of the W-phase busbar is connected to the W phase of the three-phase PIN, and the middle section of the V-phase busbar is connected to the V phase of the three-phase PIN. The resin casing also contains a U-phase busbar, which is located outside the W-phase busbars, and the middle section of the U-phase busbar is connected to the U phase of the three-phase PIN.

2. The motor busbar structure as described in claim 1, characterized in that, The U-phase busbar is provided with four first welding claws. The end of each first welding claw away from the U-phase busbar extends to the outside of the resin shell. Two of the first welding claws are located at the end of the U-phase busbar, and the other two are located on both sides of the U-phase of the three-phase PIN.

3. The motor busbar structure as described in claim 2, characterized in that, The V-phase busbar is provided with four second welding claws. The end of each second welding claw away from the V-phase busbar extends to the outside of the resin shell. Two of the second welding claws are located at the end of the V-phase busbar, and the other two are located on both sides of the V-phase of the three-phase PIN.

4. The motor busbar structure as described in claim 3, characterized in that, The W-phase busbar is provided with four third welding claws. The end of each third welding claw away from the W-phase busbar extends to the outside of the resin shell. Two of the third welding claws are located at the end of the W-phase busbar, and the other two are located on both sides of the W phase of the three-phase PIN.

5. The motor busbar structure as described in claim 4, characterized in that, The resin shell is provided with busbar support legs on its exterior.

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