A connection structure of a stator lead wire and a circuit element for an electric motor
By using piercing terminals, insulating tape, and an anti-oxidation layer on the stator coils, the problem of unstable aluminum enameled wire connections was solved, achieving both reliable electrical connections and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JIAHE MICROMOTOR
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, the connection between aluminum enameled wire and connector is unstable, resulting in unreliable electrical connections and making it difficult to reduce costs.
By using pierced terminals to fix the stator coils, and wrapping them with insulating tape and an anti-oxidation layer (such as heat shrink tubing), a reliable electrical connection between the stator windings and circuit components is achieved, eliminating the need for intermediate connecting pieces.
It achieves a reliable connection between aluminum enameled wire and circuit components, reduces the production cost of micro motors, and is also applicable to copper enameled wire micro motors.
Smart Images
Figure CN224304904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a connection structure for micro motor components, and more specifically, to a connection structure for stator wires and circuit elements of a motor. Background Technology
[0002] In conventional micro motors, the stator coil frame is equipped with connecting pieces to facilitate electrical connection between external components and the stator coil. However, with the intensification of market competition and the continuous involution of the industry, there is an urgent need to further reduce the production cost of micro motors.
[0003] As is well known to those skilled in the art, aluminum enameled wire is cheaper than copper enameled wire. However, aluminum enameled wire is not easy to tin and is prone to peeling off. This means that conventional tinning methods cannot be used to prevent oxidation and ensure a reliable connection between the aluminum enameled wire and the connector. This also affects the reliability of the electrical connection between the aluminum enameled wire and circuit components.
[0004] Therefore, there is an urgent need to develop a solution that can reliably connect aluminum enameled wires to connectors and circuit components. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of the prior art by providing a compact, easy-to-operate connection structure for stator wires and circuit components of a motor that can effectively reduce the cost of micro motors.
[0006] The technical solution of this utility model is implemented as follows: a connection structure between a stator conductor and a circuit element for a motor, including a stator frame and a stator coil wound on the stator frame, wherein two free ends on the stator coil are fixed to the circuit element by piercing terminals and electrically connected.
[0007] In the above-mentioned connection structure between the stator conductor and circuit elements for a motor, the piercing terminal is fixed in the insulating tape surrounding the stator coil.
[0008] In the above-mentioned connection structure between the stator conductor and circuit elements for an electric motor, the piercing terminal is surrounded and wrapped with an anti-oxidation layer.
[0009] In the above-mentioned connection structure between stator wires and circuit elements for an electric motor, the anti-oxidation layer is a heat shrink tubing.
[0010] This invention, employing the aforementioned structure, achieves a reliable electrical connection between the stator winding and circuit components by piercing the terminals. This structure eliminates the need for intermediate connecting pieces, reducing the number of connecting pieces required and achieving both reliable connection and cost reduction. This structure is applicable not only to micromotors using aluminum enameled wire but also to micromotors using conventional copper enameled wire. Attached Figure Description
[0011] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.
[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0013] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;
[0014] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.
[0015] In the diagram: 1. Stator frame; 2. Stator coil; 3. Pierced terminal; 4. Circuit component; 5. Insulating tape; 6. Anti-oxidation layer. Detailed Implementation
[0016] See Figures 1 to 3 As shown, this utility model discloses a connection structure between a stator conductor and a circuit element for a motor. The structure includes a stator frame 1 and a stator coil 2 wound on the stator frame 1. Two free ends of the stator coil 2 are fixed to a circuit element 4 via pierced terminals 3, achieving electrical conductivity. In this embodiment, the circuit element is an inductor. However, according to the concept of this utility model, other circuit elements can also be connected to the stator coil in this manner. Using this direct connection structure, the pierced terminals act as connecting tabs.
[0017] Preferably, the piercing terminal 3 is fixed in the insulating tape 5 surrounding the stator coil 2. Of course, other fixing methods can also be used for the piercing terminal, as long as they can achieve the desired fixation.
[0018] To improve the service life and electrical connection stability of the connection, the piercing terminal 3 is surrounded by an anti-oxidation layer 6. More preferably, the anti-oxidation layer 6 is a heat-shrink tubing. In this embodiment, the heat-shrink tubing is preferably a double-walled heat-shrink sleeve, whose inner hot-melt adhesive can effectively cover the contact area of the piercing terminal, the connection, and the wire, thereby effectively preventing oxidation.
[0019] In use, take the preset free end of the stator winding and connect it directly to the inductor through the pierced terminal to achieve electrical conduction. Finally, cover it with a double-walled heat-shrink tubing and heat-shrink it to complete the anti-oxidation treatment. Finally, wrap the pierced terminal around the insulation layer outside the stator winding with adhesive tape.
[0020] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.
Claims
1. A connection structure between stator conductors and circuit elements for an electric motor, comprising a stator frame (1) and stator coils (2) wound on the stator frame (1), characterized in that, The two free ends of the stator coil (2) are fixed to the circuit element (4) by piercing the terminal (3) and thus achieve electrical conduction.
2. The connection structure between stator conductors and circuit elements for a motor according to claim 1, characterized in that, The piercing terminal (3) is fixed in the insulating tape (5) around the stator coil (2).
3. The connection structure between stator conductors and circuit elements for a motor according to claim 1, characterized in that, The piercing terminal (3) is surrounded by an anti-oxidation layer (6).
4. The connection structure between stator conductors and circuit elements for a motor according to claim 3, characterized in that, The anti-oxidation layer (6) is a heat shrink tubing.