Flat wire motor busbar and flat wire motor
By setting folded-edge terminals on the flat wire motor busbar, the problem of unstable connection in small housings is solved, achieving a more reliable and economical connection method.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-03-31
AI Technical Summary
Existing flat wire motor busbars are not reliable enough for small housings, flexible connections are prone to breakage, and positional misalignment can cause interference. Traditional copper busbar designs are difficult to adapt to various housing structures.
Design a flat wire motor bus, which has a bus welding end and a terminal. The terminal has a folded edge, which wraps around the bus welding end to increase the connection reliability. The shape of the folded edge and the terminal can be adjusted according to the motor structure.
It improves the reliability of bus connections, has wide adaptability, reduces costs, and avoids problems such as broken or misaligned soft connections.
Smart Images
Figure CN224068502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to flat wire motors, and more particularly to a flat wire motor busbar and a flat wire motor. Background Technology
[0002] Busbars are a common form of connection for flat wire motors to the controller. Commonly used busbars include hard copper busbars, enameled wire busbars, soft copper busbars, braided strips, or combinations of various forms. However, due to different housing structures and motor wiring configurations, the design of busbars for some housings or winding schemes has certain limitations. For housings and motor structures with small wiring outlets and where flat wire stators must be blind-mounted, the most common connection method is a combination of hard copper busbars and soft copper busbars or braided strips.
[0003] Currently, the housings on the market, whether inner or outer casing or other integrated types, have limited space for the three-phase output ports. Most motor and electrical control copper busbars are connected via terminal blocks. When both inner and outer layers have leads, the position and diameter of the TIG welding torch must be considered. This necessitates that the three-phase terminals bendable so that the busbar's three-phase terminals can connect to the terminal blocks after the motor is heat-fitted into the housing. Due to the small interface, the currently used flexible connections are mostly in the form of flexible copper busbars or braided strips. Repeated bending of flexible copper busbars carries the risk of copper foil breakage, while braided strips are often thick and easily come into contact with the housing's three-phase ports. During stator heat fitting, the flexible connection busbar is prone to positional shift, causing interference between the flexible connection and the housing. Furthermore, the busbar can only be made of copper plate; the connection between enameled wire copper busbars and flexible copper busbars is not reliable enough.
[0004] In summary, designing a reliable bus is a technical problem that needs to be solved. Utility Model Content
[0005] The purpose of this utility model is to overcome the defects of the prior art and provide a flat wire motor bus and a flat wire motor.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] According to one aspect of the present invention, a flat wire motor bus is provided, the bus having a bus welding end, a terminal being welded to the bus welding end, a terminal welding end being provided on the terminal welding end, and a folded edge being provided on the side of the terminal welding end, the bus welding end being enclosed within the terminal welding end and the folded edge.
[0008] As a preferred technical solution, the terminal welding end is provided with a folded edge on one side, and the width of the folded edge is equal to the width of the terminal welding end.
[0009] As a preferred technical solution, both sides of the terminal welding end are provided with folded edges, and the width of the folded edges is equal to half the width of the terminal welding end.
[0010] As a preferred technical solution, the folded edge is rectangular.
[0011] As a preferred technical solution, three terminals are welded onto the busbar.
[0012] As a preferred technical solution, the three terminals described are identical.
[0013] As a preferred technical solution, the busbar is an enameled wire.
[0014] As a preferred technical solution, the terminal welding end is straight or bent.
[0015] As a preferred technical solution, the bending angle of the terminal welding end is 90° or 45°.
[0016] According to another aspect of the present invention, a flat wire motor is provided, the motor including a housing and a flat wire stator, the flat wire stator being installed inside the housing, and the flat wire motor busbar being welded to the flat wire stator.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1) The terminal of this utility model is provided with a folded edge, which wraps the bus welding end of the busbar and welds the terminal and the busbar together, making the terminal connection more reliable;
[0019] 2) This utility model can be adapted to different flat wire motor structures by setting the folded edge on both sides or one side of the terminal welding end, selecting different folded edge shapes and different terminal shapes, and has a wide range of applications; the form of enameled wire busbar welding terminal is less expensive than flexible connection busbar. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the flat wire motor busbar without busbar welding terminal of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the terminal welding end of this utility model having a folded edge on one side;
[0022] Figure 3 This is a schematic diagram of the structure of the terminal welding end of this utility model, which has folded edges on both sides;
[0023] Figure 4 This is a schematic diagram of the casing structure of this utility model;
[0024] Figure 5This is a schematic diagram of the flat wire stator structure of this utility model;
[0025] Figure 6 This is a schematic diagram of the structure of the busbar welded on the flat wire stator of this utility model;
[0026] Figure 7 A schematic diagram of the structure of the flat wire stator of this utility model with terminals welded to the busbar;
[0027] Figure 8 This is a schematic diagram of the assembly of the flat wire stator and the motor controller of this utility model.
[0028] Figure 9 A partial structural diagram of the assembly of the flat wire stator and the three-phase terminal block of the motor controller of this utility model;
[0029] The numbers in the diagram are as follows:
[0030] 1. Busbar, 10. Busbar welding end, 2. Terminal, 20. Terminal welding end, 21. Folded edge, 3. Housing, 4. Flat wire stator. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.
[0032] Example 1
[0033] This embodiment provides a flat wire motor bus. The bus 1 is provided with a bus welding end 10, and a terminal 2 is welded to the bus welding end 10.
[0034] Terminal 2 includes a terminal welding end 20, and the side of the terminal welding end 20 is provided with a folded edge 21. The bus welding end 10 is wrapped inside the terminal welding end 20 and the folded edge 21. The folded edge 21 can be provided on one side of the terminal welding end 20, such as... Figure 2 As shown; or folded edges 21 are provided on both sides of the terminal welding end 20, such as Figure 3 As shown, the busbar welding end 10 is wrapped on one or both sides to make the welding more reliable. The shape of the folded edge 21 can be adjusted according to actual needs; the one shown in the figure is rectangular.
[0035] Terminal 2 can be straight or bent, depending on the type of flat wire motor. Common bending angles for bent terminal 2 are 90° or 45°. The multiple terminals 2 soldered on busbar 1 can have the same or different shapes.
[0036] Busbar 1 can be made of enameled wire. Busbar 1 made of enameled wire and terminal 2 has a cost advantage over flexible connection busbar 1.
[0037] Example 2
[0038] This embodiment provides a flat wire motor, including a housing 3 and a flat wire stator 4, such as... Figure 4 and Figure 5 As shown, the flat wire stator 4 is installed inside the housing 3, and the busbar 1 in Embodiment 1 is welded to the flat wire stator 4. The flat wire stator 4, with the busbar 1 and terminal 2 installed, is connected to the motor controller, as shown... Figure 8 and Figure 9 As shown.
[0039] First, the busbar 1 of the 10 units without busbar welding (e.g.) Figure 1 (As shown) is welded to the flat wire stator 4 using assembly fixtures. After heating the housing 3 in an oven, the flat wire stator 4 (as shown) with the busbar 1 already welded on is then attached. Figure 6 As shown), it is assembled into the housing 3; after cooling, the three identical terminals 2 are resistively welded to the busbar 1 using equipment and tooling. Welding the busbar 1 first and then the busbar terminals 10 can reduce the space occupied by the terminals 2, leaving more space for the welding gun to weld the busbar 1, and preventing interference between the assembled busbar 1 and the housing 3.
[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A flat wire motor bus, characterized by, The busbar (1) is provided with a busbar welding end (10), the terminal (2) is welded on the busbar welding end (10), the terminal welding end (20) is provided on the terminal (2), the folding edge (21) is provided on the side of the terminal welding end (20), and the busbar welding end (10) is wrapped in the terminal welding end (20) and the folding edge (21).
2. A flat conductor motor bus according to claim 1, characterized in that The folding edge (21) is provided on one side of the terminal welding end (20), and the width of the folding edge (21) is equal to the width of the terminal welding end (20).
3. A flat conductor motor bus according to claim 1, wherein The folding edge (21) is provided on both sides of the terminal welding end (20), and the width of the folding edge (21) is equal to half of the width of the terminal welding end (20).
4. A flat conductor motor bus according to claim 1, wherein The folding edge (21) is rectangular.
5. A flat conductor motor bus according to claim 1, wherein Three terminals (2) are welded on the busbar (1).
6. A flat conductor motor bus according to claim 5, characterized in that The three terminals (2) are completely same.
7. A flat conductor motor bus according to claim 1 wherein, The busbar (1) is an enameled wire.
8. A flat conductor motor bus according to claim 1 wherein, The terminal welding end (20) is flat or bent.
9. A flat conductor motor bus according to claim 8, wherein, The bending angle of the terminal welding end (20) is 90° or 45°.
10. A flat wire motor characterized by The motor comprises a casing (3) and a flat wire stator (4), the flat wire stator (4) is installed in the casing (3), and the busbar (1) of any one of claims 1-9 is welded on the flat wire stator (4).