Single-phase capacitive AC motor
By using a method in which the main winding and auxiliary winding small coils are stacked and wound in the same slot in a single-phase capacitor AC motor, combined with a specific enameled wire and number of turns configuration, the problems of winding difficulties and insufficient torque are solved, achieving higher motor performance and cost-effectiveness.
Patent Information
- Application Number
- CN202423302425.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing single-phase capacitor AC motors are difficult to engage at startup, have high costs, and lack sufficient torque without affecting temperature rise and efficiency, thus failing to meet customer requirements.
The stator assembly uses small coils of the main and auxiliary windings stacked in the same slot, and multiple conductors are wound in parallel. It combines φ0.49mm and φ0.47mm enameled wire, and the number of turns of the main and auxiliary windings are configured as 65 turns, 30 turns, and 80 turns, respectively. F-grade enameled copper wire is used to ensure that the current and torque meet the requirements.
It solves the problem of difficult wiring, improves the torque and service life of the motor, reduces costs, is suitable for different product needs, and meets higher usage value.
Smart Images
Figure CN223693728U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor technical field more particularly is a single phase capacitance type AC motor. BACKGROUND
[0002] At present, motor is a kind of equipment that converts electric energy into mechanical energy, it is to use the electric coil (i.e. stator winding) and act on rotor to form magnetic electric rotation torque. It can be synchronous motor or asynchronous motor (motor stator magnetic field rotation speed and rotor rotation speed do not keep synchronous speed). Motor is mainly composed of stator and rotor, and the direction of force movement of energized wire in magnetic field is related to electric current direction and magnetic induction line direction. Motor working principle is that magnetic field acts on electric current force, and motor rotates. Motor is divided into three-phase asynchronous motor and single-phase asynchronous motor according to different power supply. Traditional AC single-phase capacitance starting or double-value capacitance motor, motor starts at the moment, and starting capacitor realizes the function of starting capacitor through the on-off of mechanical centrifugal switch. With the iteration of product update, the requirement of motor is higher and higher, and the maximum torque of motor used in current oil-free air compressor is 1.84N.m, and it is difficult to embed wire, and the cost is higher, so it is necessary to improve torque of motor under the condition of not affecting temperature rise and efficiency to meet the use requirement of customer. SUMMARY
[0003] The utility model discloses a single phase capacitance type AC motor that is stable and reliable, has a longer service life, reduces cost and is more valuable.
[0004] The utility model discloses a single phase capacitance type AC motor that is stable and reliable, has a longer service life, reduces cost and is more valuable.
[0005] As a further description of the above scheme, the stator core is 24 slots, and the main and auxiliary windings are each arranged with 6 slots per level, and the pole pitch is 6mm.
[0006] Further, the main winding and the auxiliary winding are evenly arranged on the stator core, so that the magnetic field is uniform, the electric potential is symmetrical, and a greater induced electromotive force is obtained.
[0007] Further, the main winding uses φ0.49mm enameled wire, and the auxiliary winding uses φ0.47mm enameled wire.
[0008] Further, the main winding has 65 turns of large circle and 30 turns of small circle, and the auxiliary winding has 80 turns of large circle and 45 turns of small circle.
[0009] Further, the motor winding uses F-grade enameled copper wire, and the motor has a longer service life.
[0010] Further, the maximum torque of the motor is 2.04 N.m, the load is larger, the motor can be compatible with other models of motor, the motor is more powerful, the service life is longer, the cost is reduced, and the use value is higher.
[0011] The beneficial effects achieved by the utility model adopting the above technical solutions are.
[0012] 1. The utility model discloses a single-phase capacitor type alternating current motor structure which is mainly composed of a motor main body, a stator assembly arranged in the motor main body and a rotor assembly.
[0013] 2. The motor winding of the utility model uses F-grade enameled copper wire, and the motor has a longer service life.
[0014] 3. The utility model can be compatible with other models of motor, the motor is more powerful, the service life is longer, the cost is reduced, and the use value is higher. DRAWINGS
[0015] Figure 1 It is a motor installation structure schematic view of the utility model.
[0016] Figure 2 It is a stator winding structure schematic view of the utility model.
[0017] Figure 3 It is a winding wiring diagram of the utility model.
[0018] Reference signs: 1, motor main body, 2, stator assembly, 2-1, stator core, 2-3, main winding, 2-3, auxiliary winding, 3, rotor assembly. CONCRETE IMPLEMENTATION
[0019] In the description of the utility model, it is necessary to explain that, for the direction words, if the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.
[0020] In addition, if the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "at least" is one or more, unless otherwise explicitly specified and limited.
[0021] In the utility model, unless otherwise specified and limited, if the terms "assembly", "connection", "connection" are understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or it can be connected between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0022] In the utility model, unless otherwise specified and limited, the "upper" or "lower" of the first feature on the second feature can include the direct contact between the first and second features, or the contact between the first and second features through another feature between them. Moreover, the "upper", "lower" and "upper" of the first feature on the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than the height of the second feature. The "upper", "lower" and "lower" of the first feature on the second feature include the first feature below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is lower than the second feature.
[0023] The specific embodiments of the utility model are further described below in conjunction with the drawings of the specification, so that the technical scheme of the utility model and its beneficial effects are more clear and explicit. The description of the embodiments below is exemplary and is intended to explain the utility model, and cannot be understood as limiting the utility model.
[0024] As Figures 1-3The utility model discloses a single-phase capacitor type AC motor, including motor main body 1 and the stator assembly 2, rotor assembly 3 of setting in it, the stator assembly 2 includes stator core 2-1 and the main winding 2-2, auxiliary winding 2-3 of setting on it, and the main winding and auxiliary winding small circle are overlapped in the same slot, and the main winding and auxiliary winding adopt the form of two conductors and are around, and the purpose is to solve the difficulty of embedding wire, instead of large current and large wire diameter, the motor is 24 slot 2 pole motor, uses 115V, 60HZ frequency, rated power 280W, and the current is 2.6A, and the current is larger, and the large wire diameter enameled wire can meet the current through, and the enameled wire will not be burnt out due to overcurrent, so the main winding uses phi 0.49mm enameled wire, and the auxiliary winding uses phi 0.47mm enameled wire, and the power current is ensured to meet the performance requirement, and the maximum load of this motor needs to be greater than 200kpa under the condition of low voltage 97.5V \ 6HZ without shutdown, so the main winding turns number is selected as 65 turns of large circle and 30 turns of small circle, and the auxiliary winding turns number is selected as 80 turns of large circle and 45 turns of small circle, so that the maximum torque is met, and the power meets the requirement.
[0025] The pole pitch calculation formula is r=z1 / 2p, and the motor is 24 slot, the phase number is 1, and the motor is 2 pole motor, the existing slot number z1 and pole pair number p, motor phase number m, the winding pole pitch and the slot number per pole per phase q are calculated, that is
[0026] The pole pitch (slot) is r=z1 / 2p=6.
[0027] The slot number per pole per phase (slot / pole phase) is q=z1 / 2pm=6, the winding is divided into main winding and auxiliary winding, the main winding and auxiliary winding small circle are overlapped in the same slot, the main winding and auxiliary winding are each distributed 6 slot numbers per level, the pole pitch is 6mm, and the winding is uniformly distributed on the stator core, so that the magnetic field is uniform, the potential is symmetrical, and greater induced electromotive force is obtained.
[0028] The following is the motor performance data
[0029] U(V) I(A) P1(W) T(N.m) n(r / min) P2(W) I1(A) I2(A) Uc(V) Idle point 113.6 1.001 107.70 2.06 1788.0 11.23 1.710 2.112 221.3 Maximum torque 113.8 5.081 556.00 2.04 1508.0 322.12 4.477 1.393 145.6 Maximum output 113.9 4.652 515.80 2.01 1556.0 327.49 3.931 1.467 153.3 Maximum efficiency 113.9 2.937 332.50 1.43 1692.0 253.35 1.929 1.784 186.4 Rated point 113.8 2.461 280.00 1.149 1717.3 206.63 1.515 1.870 195.4 .
[0030] Compared with the prior art, 1, the load is larger, the service life is longer, the cost is reduced, and the use value is higher, 2, the problem of embedding wire difficulty can be effectively solved.
[0031] The preferred embodiments of the utility model are described above, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the creative concept of the utility model, a plurality of deformations and improvements can be made, which all belong to the protection scope of the utility model.
Claims
1. A single-phase capacitive AC motor, characterized by It includes motor body and its inner setting stator assembly, rotor assembly, stator assembly includes stator core and its setting main winding, auxiliary winding, main winding and auxiliary winding small circle stack in the same slot, main winding and auxiliary winding adopt two or more than two lead and around form.
2. A single-phase capacitive AC electric machine according to claim 1, characterized in that, The stator core is 24 slots, and the main winding and the auxiliary winding each distribute 6 slots per level, and the pole pitch is 6mm.
3. A single-phase capacitor AC motor according to claim 1, characterized in that The main winding and the auxiliary winding are distributed on the stator core, and the potentials are symmetrical.
4. A single-phase capacitive AC electric machine according to claim 1, characterized in that, The main winding uses φ0.49mm enameled wire, and the auxiliary winding uses φ0.47mm enameled wire.
5. A single-phase capacitive AC electric machine according to claim 1, characterized in that, The main winding has 65 turns of large circle and 30 turns of small circle, and the auxiliary winding has 80 turns of large circle and 45 turns of small circle.
6. A single-phase capacitive AC electric machine according to claim 1, characterized in that, The motor winding all uses F-grade enameled copper wire for enameled wire, and the temperature resistance is 155 degrees Celsius.
7. A single-phase capacitive AC motor according to claim 1, characterized in that, The maximum torque of the motor is 2.04N.m.