Double-voltage three-gear tap speed regulation single-phase induction motor

By employing a design of 2 sets of main windings + 4 sets of auxiliary windings + 2 capacitors in a single-phase induction motor, the problems of large performance differences and temperature rise under high and low voltages are solved, achieving balanced performance of the motor under different voltages and simple voltage switching.

CN224111078UActive Publication Date: 2026-04-10杨宇欣
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing single-phase induction motors exhibit significant performance differences under high and low voltage conditions, experience temperature rise, and have uneven speed regulation performance.

Method used

The design adopts 2 sets of main windings + 4 sets of auxiliary windings + 2 operating capacitors of equal capacity. At low voltage, 1 set of main windings + 3 sets of auxiliary windings are used in parallel, and at high voltage, 2 sets of main windings + 4 sets of auxiliary windings are used, with parallel or open-circuit capacitors to ensure consistent performance of each level under different voltages.

Benefits of technology

It achieves a balance in motor performance under high and low voltage conditions, reduces temperature rise, simplifies voltage switching, and minimizes performance differences.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a double-voltage three-gear tap speed regulator. A single-phase induction motor comprises a motor body and a voltage change-over switch; the motor body comprises a main winding M1, a main winding M2, a secondary winding A1, a secondary winding A2, a secondary winding A3, a secondary winding A4, a first operation capacitor and a second operation capacitor; the voltage change-over switch comprises a low-voltage end, a high-voltage end and a switching end, and the switching end is selectively connected with the low-voltage end or the high-voltage end; the middle parts of the main winding M1 and the main winding M2 are connected to a voltage change-over switch; the second operation capacitor is connected to the voltage change-over switch; in low voltage, the first operation capacitor and the second operation capacitor are connected in parallel to form a capacitor bank, and the main winding M2 is connected in parallel with a circuit formed by the secondary winding A2, the secondary winding A3, the secondary winding A4 and the capacitor bank; and when the voltage is high, the second operation capacitor is disconnected, and a circuit formed by sequentially connecting the main winding M1 and the main winding M2 is connected in parallel with a circuit formed by sequentially connecting the secondary winding A1, the secondary winding A2, the secondary winding A3, the secondary winding A4 and the first operation capacitor.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor body technical field especially relates to a double voltage three gear tap speed single phase induction motor. BACKGROUND

[0002] Please refer to Figure 1 And Figure 2 , the prior art motor body has 4 outgoing wires, the stator coil is 2 sets of main winding + 1 set of auxiliary winding + 1 running capacitor, and the speed is adjusted by series resistance, capacitor, 2 sets of main winding are used for high voltage (220~240V 50 / 60Hz), and only 1 set is used for low voltage (100~127V 50 / 60Hz), since high and low voltage share same 1 set of auxiliary winding + same 1 running capacitor, the high and low voltage motor body high performance difference is large, even the temperature rise is higher, and also since the same 1 set of resistance and capacitor are used for speed adjustment, the high and low voltage motor body middle and low performance difference is also large. UTILITY MODEL CONTENTS

[0003] In view of the above situation, it is necessary to provide a double voltage three gear tap speed single phase induction motor with small high and low voltage motor body high and low performance difference.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme that a double voltage three gear tap speed single phase induction motor, including motor body and voltage switch switch;

[0005] The motor body includes main winding M1, main winding M2, auxiliary winding A1, auxiliary winding A2, auxiliary winding A3, auxiliary winding A4, first running capacitor and second running capacitor;

[0006] The voltage switch switch includes low voltage end, high voltage end and switch end, the switch end can be selectively connected with the low voltage end or the high voltage end, the middle part of the main winding M1 and the main winding M2 is connected to the voltage switch switch, and the second running capacitor is connected to the voltage switch switch;

[0007] When the low voltage, the main winding M2, the auxiliary winding A2, the auxiliary winding A3 and the auxiliary winding A4, the first running capacitor and the second running capacitor run, the first running capacitor and the second running capacitor are connected in parallel to form a capacitor group, and the main winding M2 is connected in parallel with the auxiliary winding A2, the auxiliary winding A3 and the auxiliary winding A4 and the circuit formed by the capacitor group;

[0008] In high voltage, the main winding M1, the main winding M2, the auxiliary winding A1, the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the first operating capacitor operate, the second operating capacitor is disconnected, and the circuit composed of the main winding M1 and the main winding M2 in sequence is connected in parallel with the circuit composed of the auxiliary winding A1, the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the first operating capacitor in sequence.

[0009] Further, the high-voltage end of the voltage switch is composed of pin 1, pin 2 and pin 3, the low-voltage end is composed of pin 7, pin 8 and pin 9, and the switching end is composed of connected pin 4, pin 5 and pin 6; the middle part of the main winding M1 and the main winding M2 is connected to the pin 7; in high voltage, the pin 4 is connected to the pin 1, the pin 5 is connected to the pin 2, and the pin 6 is connected to the pin 3; in low voltage, the pin 4 is connected to the pin 7, the pin 5 is connected to the pin 8, and the pin 6 is connected to the pin 9.

[0010] Further, it further includes a gear switch, the gear switch includes a switching pin, a high gear pin, a middle gear pin and a low gear pin, the switching pin is connected to the plug, the high gear pin is connected to the pin 4, the middle gear pin is connected between the auxiliary winding A2 and the auxiliary winding A3, and the low gear pin is connected between the auxiliary winding A3 and the auxiliary winding A4.

[0011] Further, the pin 1, the main winding M1 and the main winding M2 are connected to the plug in sequence, and the middle part of the main winding M1 and the main winding M2 is connected to the pin 7.

[0012] Further, the pin 2 is connected to one end of the auxiliary winding A1 away from the auxiliary winding A2, and the pin 8 is connected between the auxiliary winding A1 and the auxiliary winding A2.

[0013] Further, one end of the first operating capacitor is connected to the auxiliary winding A4, and the other end is connected to the plug; one end of the second operating capacitor is connected to the pin 9, and the other end is connected to the plug.

[0014] Further, the pin 6 is connected between the auxiliary winding A4 and the first operating capacitor.

[0015] Further, in low voltage, the voltage is 100 to 127V.

[0016] Further, in high voltage, the voltage is 220 to 240V.

[0017] The utility model discloses a beneficial effect lies in: 2 sets of main winding + 4 sets of auxiliary winding + 2 same capacity operating capacitor are used, 1 set of main winding + 3 sets of auxiliary winding are used when low pressure, and 2 capacitors are connected in parallel, 2 sets of main winding + 4 sets of auxiliary winding are used when high pressure, and only 1 capacitor is used, so that different main winding and auxiliary winding are used respectively when high and low pressure, and the capacitor is also different, and the motor body performance of each gear is basically same when high and low pressure, and the voltage switching switch wiring is simple. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural diagram of prior design;

[0019] Figure 2 It is the principle diagram of prior design;

[0020] Figure 3 It is the structural diagram of a kind of double-voltage three-gear tap speed single-phase induction motor of the utility model embodiment;

[0021] Figure 4 It is the principle diagram of a kind of double-voltage three-gear tap speed single-phase induction motor of the utility model embodiment;

[0022] Figure 5 It is the principle diagram of a kind of double-voltage three-gear tap speed single-phase induction motor of the utility model embodiment when high pressure;

[0023] Figure 6 It is the principle diagram of a kind of double-voltage three-gear tap speed single-phase induction motor of the utility model embodiment when low pressure. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is further detailed to a kind of double-voltage three-gear tap speed single-phase induction motor of the utility model with the drawings and embodiment.It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] Please refer to Figures 3-6 A kind of double-voltage three-gear tap speed single-phase induction motor, including motor body 100 and voltage switching switch 200;

[0026] Motor body 100 includes main winding M1, main winding M2, auxiliary winding A1, auxiliary winding A2, auxiliary winding A3, auxiliary winding A4, first operating capacitor 410 and second operating capacitor 420;

[0027] The voltage switch 200 comprises a low-voltage end 220, a high-voltage end 210 and a switching end 230, the switching end 230 being selectively connected to the low-voltage end 220 or the high-voltage end 210; the middle part of the main winding M1 and the main winding M2 is connected to the voltage switch 200; the second operating capacitor 420 is connected to the voltage switch 200;

[0028] When the voltage is low, the main winding M2, the auxiliary winding A2, the auxiliary winding A3 and the auxiliary winding A4, the first operating capacitor 410 and the second operating capacitor 420 operate, the first operating capacitor 410 and the second operating capacitor 420 are connected in parallel to form a capacitor group, and the main winding M2 is connected in parallel with the auxiliary winding A2, the auxiliary winding A3 and the auxiliary winding A4 and the circuit formed by the capacitor group.

[0029] When the voltage is high, the main winding M1, the main winding M2, the auxiliary winding A1, the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the first operating capacitor 410 operate, the second operating capacitor 420 is disconnected, and the circuit formed by the main winding M1 and the main winding M2 connected in sequence is connected in parallel with the circuit formed by the auxiliary winding A1, the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the first operating capacitor 410 connected in sequence.

[0030] Nine lead wires are used, two sets of main windings, four sets of auxiliary windings and two operating capacitors of the same capacity are used, one set of main windings and three sets of auxiliary windings are used when the voltage is low, and two capacitors are connected in parallel; two sets of main windings and four sets of auxiliary windings are used when the voltage is high, and only one capacitor is used, so that different main windings and auxiliary windings are used at high and low voltages, and the capacitors are different, which ensures that the performance of the motor body 100 at high and low voltages is basically the same, and the voltage switch 200 is simple in wiring.

[0031] Please refer to Figure 4 and Figure 5 The high-voltage end 210 of the voltage switch 200 is composed of pins 1, 2 and 3, the low-voltage end 220 is composed of pins 7, 8 and 9, and the switching end 230 is composed of connected pins 4, 5 and 6; the middle part of the main winding M1 and the main winding M2 is connected to pin 7; when the voltage is high, pin 4 is connected to pin 1, pin 5 is connected to pin 2, and pin 6 is connected to pin 3; when the voltage is low, pin 4 is connected to pin 7, pin 5 is connected to pin 8, and pin 6 is connected to pin 9.

[0032] Please refer to Figures 3-6Further comprising a gear switch 300, the gear switch 300 comprises a switch pin 340, a high gear pin 310, a middle gear pin 320 and a low gear pin 330, the switch pin 340 is connected to the plug 500, the high gear pin 310 is connected to the pin 4, the middle gear pin 320 is connected between the auxiliary winding A2 and the auxiliary winding A3, and the low gear pin 330 is connected between the auxiliary winding A3 and the auxiliary winding A4. When the voltage is low, the high gear A2, A3 and A4 all work, and when the voltage is high, the high gear A1, A2, A3 and A4 all work.

[0033] Please refer to Figure 4 , the pin 1, the main winding M1 and the main winding M2 are sequentially connected to the plug 500, and the middle of the main winding M1 and the main winding M2 is connected to the pin 7. That is, only M2 is used when the voltage is low, and M1 and M2 are used simultaneously when the voltage is high.

[0034] Please refer to Figure 4 , the pin 2 is connected to one end of the auxiliary winding A1 away from the auxiliary winding A2, and the pin 8 is connected between the auxiliary winding A1 and the auxiliary winding A2. That is, when the voltage is high, the high gear A1, A2, A3 and A4 all work, and when the voltage is low, the high gear A2, A3 and A4 all work.

[0035] Please refer to Figure 4 , one end of the first running capacitor 410 is connected to the auxiliary winding A4, and the other end is connected to the plug 500; one end of the second running capacitor 420 is connected to the pin 9, and the other end is connected to the plug 500. That is, when switched to low voltage, the first running capacitor 410 and the second running capacitor 420 are connected in parallel; when switched to high voltage, the second running capacitor 420 is disconnected.

[0036] Please refer to Figure 4 , the pin 6 is connected between the auxiliary winding A4 and the first running capacitor 410. That is, when the voltage is low, the first running capacitor 410 and the second running capacitor 420 are connected in parallel.

[0037] Preferably, when the voltage is low, the voltage is 100-127V. Preferably, the frequency is 50 / 60Hz.

[0038] Preferably, when the voltage is high, the voltage is 220-240V. Preferably, the frequency is 50 / 60Hz.

[0039] Please refer to Figures 2-6 , the fuse in the figure is a fuse, that is, a fuse is arranged at the rear end of the plug 500 to improve the safety index.

[0040] It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back, …), the directionality indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0041] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features.

[0042] In summary, the double-voltage three-gear tap speed regulating single-phase induction motor provided by the present application adopts two sets of main windings + four sets of auxiliary windings + two capacitors of the same capacity for the stator coil of the motor body, uses one set of main winding + three sets of auxiliary winding and two capacitors in parallel at low voltage (100-127V 50 / 60Hz), and uses two sets of main winding + four sets of auxiliary winding and only one capacitor at high voltage (220-240V 50 / 60Hz). In this way, different main windings and auxiliary windings are used at high and low voltages, and the capacitors are also different. The tap speed is used for each gear, and the performance of the motor body at high and low voltages is basically the same. The motor body has fewer lead wires, and the voltage switching switch has simple wiring.

[0043] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and can make equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A dual voltage, three speed, tapped run capacitor single phase induction motor characterized by, The motor body and a voltage switching switch are included. The motor body includes a main winding M1, a main winding M2, an auxiliary winding A1, an auxiliary winding A2, an auxiliary winding A3, an auxiliary winding A4, a first running capacitor and a second running capacitor. The voltage switching switch includes a low-voltage end, a high-voltage end and a switching end, the switching end is selectively connected to the low-voltage end or the high-voltage end, the middle part of the main winding M1 and the main winding M2 is connected to the voltage switching switch, and the second running capacitor is connected to the voltage switching switch. When the voltage is low, the main winding M2, the auxiliary winding A2, the auxiliary winding A3 and the auxiliary winding A4, the first running capacitor and the second running capacitor are operated, the first running capacitor and the second running capacitor are connected in parallel to form a capacitor group, and the main winding M2 is connected in parallel with the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the circuit formed by the capacitor group. When the voltage is high, the main winding M1, the main winding M2, the auxiliary winding A1, the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the first running capacitor are operated, the second running capacitor is disconnected, and the circuit formed by the main winding M1 and the main winding M2 in sequence is connected in parallel with the circuit formed by the auxiliary winding A1, the auxiliary winding A2, the auxiliary winding A3, the auxiliary winding A4 and the first running capacitor in sequence.

2. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 1 wherein, The high-voltage end of the voltage switching switch is composed of pins 1, 2 and 3, the low-voltage end is composed of pins 7, 8 and 9, and the switching end is composed of connected pins 4, 5 and 6; the middle part of the main winding M1 and the main winding M2 is connected to the pin 7; when the voltage is high, the pin 4 is connected to the pin 1, the pin 5 is connected to the pin 2, and the pin 6 is connected to the pin 3; when the voltage is low, the pin 4 is connected to the pin 7, the pin 5 is connected to the pin 8, and the pin 6 is connected to the pin 9.

3. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 2 wherein, It also includes a gear switching switch, the gear switching switch includes a switching pin, a high gear pin, a middle gear pin and a low gear pin, the switching pin is connected to a plug, the high gear pin is connected to the pin 4, the middle gear pin is connected between the auxiliary winding A2 and the auxiliary winding A3, and the low gear pin is connected between the auxiliary winding A3 and the auxiliary winding A4.

4. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 3 wherein, The pins 1, the main winding M1 and the main winding M2 are connected to the plug in sequence, and the middle part of the main winding M1 and the main winding M2 is connected to the pin 7.

5. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 3 wherein, The pin 2 is connected to one end of the auxiliary winding A1 away from the auxiliary winding A2, and the pin 8 is connected between the auxiliary winding A1 and the auxiliary winding A2.

6. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 3 wherein, One end of the first running capacitor is connected to the auxiliary winding A4, and the other end is connected to the plug; one end of the second running capacitor is connected to the pin 9, and the other end is connected to the plug.

7. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 3 wherein, The pin 6 is connected between the auxiliary winding A4 and the first running capacitor.

8. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 1 wherein, When the voltage is low, the voltage is 100-127V.

9. A dual voltage, three position tapped run capacitor single phase induction motor as claimed in claim 1 wherein, When the voltage is high, the voltage is 220-240V.