Energy-saving winding of asynchronous motor

Abstract

The utility model discloses an asynchronous motor energy -conserving winding, include: substrate insulation PCB board, a plurality of core magnetic poles, a plurality of winding coils and a plurality of control chip module. Core magnetic pole annularly is arranged on the base plate, and winding coil is wound on the core magnetic pole, and control chip module is fixed on the base plate and is electrically connected with winding coil, is used for carrying out closed loop control to winding energized state. Winding adopts the centralized structure of flat copper wire, and control chip integrates PWM modulation and current sampling function, and the base plate is equipped with power bus and signal wire. Through this structure can significantly reduce the wire loss, improve energy efficiency and control accuracy, and be applicable to small and medium -sized power energy -conserving type asynchronous motor.

Description

Technical Field

[0001] This utility model relates to the field of motor winding technology, specifically to an energy-saving winding for an asynchronous motor. Background Technology

[0002] In asynchronous motors, the stator winding, as the core energy conversion component, directly affects the motor's operating efficiency, temperature rise level, and energy-saving performance through its structure and arrangement. Traditional asynchronous motors often employ a coil-embedded winding structure, with the winding and drive circuit typically connected by long wires. This wiring method not only suffers from long current transmission paths and high power losses but also impacts control response speed and system integration to some extent. Furthermore, the limited slot density and low slot fill factor of conventional round wire windings result in significant copper losses, reducing the overall energy efficiency of the motor.

[0003] To improve the energy efficiency and control integration of asynchronous motors, some existing technologies attempt to modularize the control circuit and arrange it close to the stator, or use multi-core parallel winding to increase the conductive cross-sectional area. However, they have not yet achieved an effective balance between compact structure, low loss, and high maintainability. Especially in small and medium power motor applications, how to achieve integrated drive control circuits, minimize winding losses, and optimize thermal management while maintaining stator structural stability remains a significant challenge for current technologies.

[0004] Therefore, there is an urgent need for an energy-saving winding structure for asynchronous motors that is optimized, highly integrated, and energy-efficient, in order to solve the problems of slow control response, high energy consumption, and complex structure of traditional structures. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is: an energy-saving winding for an asynchronous motor, comprising: a base insulating PCB board, multiple iron core magnetic poles, multiple winding coils, and multiple control chip modules, forming an integrated winding drive control system.

[0007] In a preferred embodiment, the substrate insulating PCB is further configured to have a ring structure, with multiple layers of insulating substrate and conductive copper foil lines, which can both support the installation of various modules and provide signal and power wiring functions.

[0008] Specifically, the substrate structure helps to shorten the current path between functional units, reduce wiring complexity and wire loss, and improve overall integration and operational reliability.

[0009] In a preferred embodiment, multiple iron core poles are evenly distributed in a ring along the substrate, with each iron core pole vertically fixed to the surface of the substrate to construct the stator magnetic circuit and perform electromagnetic conversion functions.

[0010] Specifically, the iron core magnetic poles correspond one-to-one with the winding coils to form a high-efficiency electromagnetic excitation unit, which improves the stator magnetic flux density and motor output efficiency.

[0011] In a preferred embodiment, multiple winding coils are wound around each iron core pole, and the winding coils are constructed of flat copper wire to form a concentrated winding structure.

[0012] Specifically, the use of flat copper wire and concentrated winding design can improve slot fill factor, reduce copper loss, and reduce leakage flux, thereby improving the efficiency and power density of the motor.

[0013] In a preferred embodiment, the winding coil is further configured such that pins are provided at both ends and are connected to conductive pads on the substrate by plugging or soldering.

[0014] Specifically, the pin structure makes winding replacement or maintenance more convenient, enhancing system modularity and maintainability.

[0015] In a preferred embodiment, multiple control chip modules are further configured to be mounted in the non-magnetic pole region of the substrate and connected to corresponding winding coils. Each control chip module includes a PWM modulation unit and a current sampling unit for constructing current closed-loop control.

[0016] Specifically, this control structure can adjust the winding duty cycle in real time to achieve precise control and dynamic energy-saving adjustment, effectively prevent surges and overexcitation, and improve control sensitivity and energy-saving performance.

[0017] In a preferred embodiment, the control chip module is further configured to be directly connected to the winding coil via short-path copper foil wiring.

[0018] Specifically, this connection method reduces current transmission loss during power drive, enhances response speed, reduces wire heat loss, and improves drive efficiency.

[0019] In a preferred embodiment, the substrate is further configured to have a ring power supply bus structure that supplies power to each control chip module uniformly in a multi-point manner.

[0020] Specifically, this power supply structure improves power stability, avoids voltage imbalance between modules, and enhances the stability and safety of the entire machine.

[0021] In summary, this utility model, through multiple structural improvements such as module integration, path optimization, and closed-loop control, constructs an energy-saving winding system for asynchronous motors that features energy-saving control capabilities, a compact structure, high integration, and strong maintainability. It effectively overcomes the technical problems of high energy consumption, complex structure, and response delay in existing technologies, and has broad application and promotion value.

[0022] The beneficial effects achieved by this utility model are as follows: 1. The integrated design of the control chip module and the substrate insulated PCB board in this utility model simplifies the wiring structure of the motor winding, shortens the control path, effectively reduces current transmission loss, improves control response speed and power utilization efficiency, and achieves high-efficiency and energy-saving operation.

[0023] 2. In this utility model, the winding coil adopts a flat copper wire concentrated winding structure, which, together with the tight coupling design of the iron core magnetic poles, improves the electromagnetic slot fill factor and magnetic flux utilization, significantly reduces copper loss and iron loss, and enhances the overall energy efficiency and power density of the motor. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the ground structure of a substrate insulating PCB board according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the iron core poles and winding coil structure of one embodiment of the present invention.

[0025] Figure label: 1. Insulated PCB board; 2. Iron core poles; 3. Winding coil; 4. Control chip module; 31. Pins. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0028] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an energy-saving winding for an asynchronous motor.

[0029] Combination Figures 1-3 As shown, the present invention provides an energy-saving winding for an asynchronous motor, comprising: a base insulating PCB board 1, multiple iron core magnetic poles 2, multiple winding coils 3, and multiple control chip modules 4.

[0030] The base insulating PCB board 1 has a circular structure and is used to support and connect the various functional modules of the motor stator. Conductive traces are provided on the base insulating PCB board 1 for signal transmission and power supply. Figure 2 As shown, the printed circuit board 1 is provided with the main power supply line and control signal line, and is connected to each module through solder pads.

[0031] Multiple iron core magnetic poles 2 are evenly spaced along the inner circumferential direction of the substrate insulating PCB board 1. Each iron core magnetic pole 2 can be a laminated structure with good magnetic permeability, forming the stator magnetic circuit of the motor. Each iron core magnetic pole 2 is vertically mounted on the surface of the substrate insulating PCB board 1.

[0032] Multiple winding coils 3 are tightly wound around each iron core pole 2. The winding coils 3 are made of flat copper wire, specifically in the form of single-layer or multi-layer windings with multiple strands arranged side by side, such as... Figure 3 As shown, this design achieves high slot fill factor and compact layout, thereby reducing winding DC resistance, reducing copper losses, and improving motor operating efficiency.

[0033] Preferably, the winding coil 3 adopts a concentrated winding method, that is, each winding coil 3 is arranged around only one iron core magnetic pole 2 and does not span multiple pole teeth, which further simplifies the wiring and improves electromagnetic efficiency.

[0034] The winding coil 3 has pins 31 at both ends. The pins 31 can be installed on the corresponding pads on the base insulating PCB board 1 by soldering or plugging, which not only realizes electrical connection, but also facilitates later replacement and maintenance.

[0035] Multiple control chip modules 4 are mounted in the non-magnetic pole area of ​​the substrate insulating PCB board 1 and are electrically connected to the corresponding winding coils 3 via printed circuit board traces. Each control chip module 4 includes a PWM control unit and a current sampling feedback unit, used to construct a closed-loop control circuit. During actual operation, the control chip module 4 receives PWM control signals from an external main controller and dynamically adjusts the current magnitude, energizing time, and duty cycle of each winding coil 3 through the current sampling feedback signals, thereby achieving energy-saving drive under different operating conditions.

[0036] Specifically, in order to reduce energy loss on the control signal path, the control chip module 4 is distributed close to the winding coil 3, and it is connected to the winding by a short-distance conductive line to reduce signal transmission delay and wire heating.

[0037] like Figure 2As shown, the substrate insulating PCB board 1 has multiple pads, vias, and copper foil wiring pre-set to form a power supply loop for each control chip module 4. The main power line is arranged in a ring structure along the board surface, supplying power evenly to each control chip module 4 at multiple points, effectively reducing voltage drop and load imbalance.

[0038] This utility model, through structural integration design, enables the control chip module 4 and the winding coil 3 to work together compactly, avoiding the power transmission loss caused by the traditional long wire connection method of winding; at the same time, the combination of concentrated winding and high slot fill factor design significantly reduces copper loss, improves motor efficiency, and has good energy-saving characteristics.

[0039] This utility model has a compact structure, high integration, and excellent energy efficiency. It is suitable for the field of small and medium-sized high-efficiency asynchronous motors and has broad application value.

[0040] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy-saving winding for an asynchronous motor, characterized in that, include: The substrate is an insulated PCB board (1), multiple iron core magnetic poles (2), multiple winding coils (3), and multiple control chip modules (4). The plurality of iron core magnetic poles (2) are arranged in a ring on the base insulating PCB board (1), and the winding coils (3) are respectively wound on the iron core magnetic poles (2); the control chip module (4) is fixed on the base insulating PCB board (1) and electrically connected to the winding coils (3) respectively, for controlling the winding coils (3) to work according to the set power supply strategy.

2. The energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The winding coil (3) is a concentrated winding made of flat copper wire.

3. The energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The iron core magnetic pole (2) and the winding coil (3) adopt an integrated tight coupling design.

4. The energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The control chip module (4) includes a PWM control unit and a current sampling feedback unit, which form a closed-loop regulation circuit to adjust the drive current of each winding coil (3) according to the real-time load requirements.

5. The energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The control chip module (4) is connected to the winding coil (3) via a short conductive path.

6. The energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The substrate insulating PCB board (1) has multiple pads and traces pre-installed for modularly installing the control chip module (4) and electrically connecting it to the winding coil (3).

7. An energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The winding coil (3) is provided with pins (31) for plugging into the PCB board to facilitate plug-in assembly and maintenance.

8. An energy-saving winding for an asynchronous motor according to claim 1, characterized in that, The substrate insulating PCB board (1) also integrates a ring power bus for powering each control chip module (4), and the power bus is connected to the control chip module (4) through a multi-point distribution structure.

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