A single-phase multi-slot motor for a small fan
By using the plastic wrap process to form a plastic wrap layer and designing eight coil windings on the silicon steel sheet, the problems of time-consuming, labor-consuming and poor balance in the traditional motor connection process are solved, and more efficient and stable motor performance is achieved.
Patent Information
- Application Number
- CN202421436530.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-23
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-23
AI Technical Summary
The connection process of traditional single-phase motors is time-consuming and labor-consuming, the welding quality is greatly affected by the operator's skills, and the insulation treatment limits the improvement of connection technology; traditional single-phase motors have poor balance and poor performance.
A plastic wrapping process is used to form a plastic wrapping layer on the silicon steel sheet, providing insulation performance and physical support, and directly installing multiple copper wrapping pins; eight coil windings are designed to increase the magnetic field gap, achieving smoother blade driving and more power-saving performance.
It greatly improves the stability of production efficiency and connection quality, and achieves a smoother and more power-saving effect of motor drive air blades.
Smart Images
Figure CN222721210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a single-phase motor, in particular to a single-phase multi-slot motor used for a small fan. Background Art
[0002] In the field of motor manufacturing, the connection between silicon steel sheets and motor drive circuit boards is one of the key factors in motor performance and production efficiency. As the core component of the motor, the silicon steel sheet is connected to the motor drive circuit board through copper wire to realize the electromagnetic conversion function of the motor. However, the traditional connection process mainly relies on manual welding of copper wires to the circuit board. This process is not only time-consuming and labor-intensive, but the welding quality is greatly affected by the operator's skill level, resulting in low production efficiency and poor product quality stability.
[0003] In traditional processes, the insulation treatment of silicon steel sheets usually adopts a coating process to coat a layer of insulation on the silicon steel sheets. Although this method can provide the necessary insulation performance, it has the problem of inconvenient installation of connection pins, which in turn limits the further improvement and optimization of connection technology.
[0004] In addition, traditional single-phase motors generally have four windings. When in use, their balance is average and their performance is not good. Traditionally, a single Hall drive has four single-coil windings. Based on the driving principle of the Hall and magnetic ring, multiple windings can be driven. Therefore, if the number of windings is increased, the more windings there are, the smaller the gap between the magnetic fields, thereby achieving a more stable motor-driven fan blade. Therefore, there is still room for improvement in the use of single-phase motors in the prior art. Summary of the invention
[0005] In order to solve the above problems, the utility model provides a single-phase multi-slot motor for a small fan, which adopts eight coil windings, so that the entire single-phase motor is more energy-saving and more stable in use.
[0006] The utility model is realized by the following technical scheme: a single-phase multi-slot motor for a small fan, comprising:
[0007] A coil skeleton composed of multiple silicon steel sheets, wherein the coil skeleton is provided with wire grooves for coil winding;
[0008] The plastic coating layer is coated on the outside of the silicon steel sheet through a coating process and is used for external isolation and insulation of the silicon steel sheet;
[0009] Three pins are fixedly mounted on the plastic coating;
[0010] A circuit board is arranged on one side of the coil frame. After the copper wire is wound on the wire slot, it is connected to the circuit board to achieve the purpose of connecting the copper wire with the circuit board.
[0011] Three pins are connected to the circuit board and the coil respectively, and there are eight wire slots on the coil frame.
[0012] As a preferred technical solution, the plastic coating layer is provided with pin slots at positions corresponding to the pin pins, and the pin pins are inserted and fixed in the pin slots.
[0013] As a preferred technical solution, a plurality of supporting protrusions are provided on one side of the plastic coating layer facing the circuit board, and the supporting protrusions are in contact with and support the circuit board.
[0014] As a preferred technical solution, a single driver IC is arranged on the circuit board.
[0015] The beneficial effects of the utility model are as follows: the utility model adopts the plastic coating process to form a plastic coating layer on the silicon steel sheet, which not only effectively provides the required electrical insulation performance, but also allows multiple copper wire legs to be directly installed on the silicon steel sheet, providing physical support for the connection of the copper wire, and compared with the traditional manual welding method, greatly improves the production efficiency and the stability of the connection quality;
[0016] The utility model adopts eight coil windings. Compared with the traditional four windings, the more windings there are, the smaller the gap between the magnetic fields, so that the motor drives the fan blades more smoothly. The more windings there are, the longer the total length of copper wire that can be wound, which can reduce the working current of the motor and save more power than the traditional four-winding motor. And still only a single Hall drive is needed, which makes rational use of resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;
[0019] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;
[0020] Figure 3 It is a schematic diagram of the bottom structure of the utility model;
[0021] Description of reference numerals:
[0022] 1. Circuit board; 2. Silicon steel sheet; 3. Coil skeleton; 4. Wire slot; 5. Pin pin; 6. Support protrusion. DETAILED DESCRIPTION
[0023] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0024] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0025] like Figure 1-Figure 3 As shown, the utility model is a single-phase multi-slot motor for a small fan, comprising a coil skeleton 3 composed of a plurality of silicon steel sheets 2, wherein the coil skeleton 3 is provided with a wire slot 4 for winding the coil;
[0026] It also includes a plastic coating layer, which is coated on the outside of the silicon steel sheet 2 through a coating process, and is used for external isolation and insulation of the silicon steel sheet 2. The plastic coating layer can be used as external insulation of the silicon steel sheet 2 to prevent conductive contact with the copper wire, and the plastic coating layer can be used as a fixed carrier of the coil, so the coil can be fixed on the outside of the silicon steel sheet 2;
[0027] In this embodiment, three pins 5 are also included, which are fixedly mounted on the plastic coating layer, and the coil is connected to the circuit board 1 through the three pins 5;
[0028] In this embodiment, a circuit board 1 is further included, which is arranged on one side of the coil frame 3. After the copper wire is wound on the wire slot 4, the circuit board 1 is connected to achieve the purpose of connecting the copper wire with the circuit board 1.
[0029] Three pins 5 are connected to the circuit board 1 and the coil respectively, and there are eight wire slots 4 on the coil frame 3.
[0030] The plastic coating layer is provided with pin slots at positions corresponding to the plug pins 5, and the plug pins 5 are inserted and fixed in the pin slots.
[0031] The utility model adopts a plastic coating process to form a plastic coating layer on the silicon steel sheet 2, which not only effectively provides the required electrical insulation performance, but also allows multiple copper wire legs to be directly installed on the silicon steel sheet 2, providing physical support for the connection of the copper wire. Compared with the traditional manual welding method, it greatly improves the production efficiency and the stability of the connection quality.
[0032] In order to improve the installation stability between the coil frame 3 and the circuit board 1, in this embodiment, Figure 2As shown, a plurality of supporting protrusions 6 are provided on one side of the plastic coating layer facing the circuit board 1 , and the supporting protrusions 6 are in contact with and support the circuit board 1 .
[0033] Wherein, a single driver IC is arranged on the circuit board 1 .
[0034] The utility model adopts eight coil windings. Compared with the traditional four windings, the more windings there are, the smaller the gap between the magnetic fields, so that the motor drives the fan blades more smoothly. The more windings there are, the longer the total length of copper wire that can be wound, which can reduce the working current of the motor and save more power than the traditional four-winding motor. And still only a single Hall drive is needed, which makes rational use of resources.
[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A single-phase multi-slot motor for a small fan, characterized in that: include: A coil skeleton (3) composed of a plurality of silicon steel sheets (2), wherein the coil skeleton (3) is provided with a wire groove (4) for coil winding; A plastic coating layer, which is coated on the outside of the silicon steel sheet (2) through a coating process and is used for external isolation and insulation of the silicon steel sheet (2); Three pins (5) fixedly mounted on the plastic coating layer; A circuit board (1) is arranged on one side of the coil frame (3); after the copper wire is wound on the wire slot (4), it is connected to the circuit board (1) to achieve the purpose of connecting the copper wire and the circuit board (1); Three plug pins (5) are respectively connected to the circuit board (1) and the coil, and there are eight wire slots (4) on the coil frame (3).
2. The single-phase multi-slot motor for a small fan according to claim 1, characterized in that: The plastic coating layer is provided with a pin slot at a position corresponding to the plug pin (5), and the plug pin (5) is inserted and fixed in the pin slot.
3. The single-phase multi-slot motor for a small fan according to claim 1, characterized in that: A plurality of supporting protrusions (6) are provided on one side of the plastic coating layer facing the circuit board (1), and the supporting protrusions (6) are in contact with and support the circuit board (1).
4. The single-phase multi-slot motor for a small fan according to claim 1, characterized in that: A single driver IC is arranged on the circuit board (1).