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

Abstract

The utility model relates to a double-voltage multi-gear tapped speed regulation single-phase induction motor, which adopts two groups of main windings, two groups of secondary windings and four groups of speed regulation windings, and is matched with two capacitors. At low voltage, the three windings are respectively connected in parallel, the main winding is connected with the secondary winding in parallel, and the two capacitors are connected in parallel; in high voltage, the three windings are respectively connected in series, the main winding and the secondary winding are connected in parallel, and only one capacitor is used; therefore, each winding can be fully applied at high voltage and low voltage, and the performance of the motor at each gear is basically the same.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a dual-voltage multi-speed tap-controlled single-phase induction motor. Background Technology

[0002] Please refer to Figure 1 The existing type of motor has 4 leads, and the stator coil consists of 2 main windings + 1 auxiliary winding + 1 running capacitor. Speed ​​regulation is achieved through series resistors and capacitors. High voltage (220~240V 50 / 60Hz) uses 2 main windings, while low voltage (100~127V 50 / 60Hz) uses only 1. Because the high and low voltage motors share the same auxiliary winding + the same running capacitor, the high-end performance of the high and low voltage motors differs significantly, and the temperature rise is even higher. At the same time, because the high and low voltage motors share the same set of resistors and capacitors for speed regulation, the low-end performance of the high and low voltage motors also differs significantly. Utility Model Content

[0003] In view of the above situation, it is necessary to propose a dual-voltage multi-speed tap-controlled single-phase induction motor in which each winding can be fully utilized at different voltages and the motor performance is highly consistent at different speeds.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a dual-voltage multi-stage tap speed-regulating single-phase induction motor, comprising:

[0005] The motor windings include two main windings, namely main winding MC1 and main winding MC2, two auxiliary windings, namely auxiliary winding AC1 and auxiliary winding AC2, and four speed regulating windings, namely speed regulating winding RC1, speed regulating winding RC2, speed regulating winding RC3 and speed regulating winding RC4.

[0006] A voltage switching switch includes a low-voltage terminal composed of several low-voltage contacts, a high-voltage terminal composed of several high-voltage contacts, and a switching terminal composed of several switching contacts. The switching contacts are connected as a whole, and the motor winding is electrically connected to the low-voltage terminal and the high-voltage terminal.

[0007] When the switching terminal is connected to the low-voltage terminal, the main winding MC1, the main winding MC2, the auxiliary winding AC1, and the auxiliary winding AC2 are connected in parallel to form a low-voltage parallel group. A capacitor C1 and a capacitor C2 connected in parallel are connected between the main winding MC2 and the auxiliary winding AC1. The speed regulating winding RC1 and the speed regulating winding RC2 are connected in parallel to form a first speed regulating parallel group. The speed regulating winding RC3 and the speed regulating winding RC4 are connected in parallel to form a second speed regulating parallel group. The first speed regulating parallel group, the second speed regulating parallel group, and the low-voltage parallel group are connected in series in sequence.

[0008] When the switching terminal is connected to the high-voltage terminal, the main winding MC1 and the main winding MC2 are connected in series to form a main series group, the auxiliary winding AC1, the auxiliary winding AC2 and the capacitor C2 are connected in series to form a secondary series group, the main series group and the secondary series group are connected in parallel to form a high-voltage parallel group, and the speed regulating winding RC2, the speed regulating winding RC4, the speed regulating winding RC1, the speed regulating winding RC3 and the high-voltage parallel group are connected in series in sequence.

[0009] Furthermore, it also includes a gear shift switch, the gear shift switch being connected to the first lead of the plug, the gear shift switch including low, medium and high gears; when the switching terminal is connected to the low-voltage terminal, the first speed regulating parallel group is located between the low and medium gears, and the second speed regulating parallel group is located between the medium and high gears; when the switching terminal is connected to the high-voltage terminal, the speed regulating winding RC2 and the speed regulating winding RC4 are located between the low and medium gears, and the speed regulating winding RC1 and the speed regulating winding RC3 are located between the medium and high gears.

[0010] Furthermore, the switching contacts include contacts 10, 11, 12, 13, 14, 15, 16, 17, and 18 connected in sequence. Contact 10 is connected to the medium speed setting, contact 11 is connected to the speed control winding RC2 and the low speed setting respectively, contact 12 is connected between the speed control winding RC2 and the speed control winding RC4, contact 13 is connected to the speed control winding RC4, contact 14 and contact 15 are connected to the two ends of the main winding MC2 respectively, contact 16 and contact 17 are connected to the two ends of the auxiliary winding AC2 respectively, and contact 18 is connected to capacitor C2. Capacitor C2 is connected to the second lead of the plug.

[0011] Furthermore, the low-voltage contact includes contact 1, contact 2, contact 3, contact 4, contact 5, contact 6, contact 7, contact 8, and contact 9. Contact 1 is connected to contact 3, contact 4 is connected to contact 5, and contact 5 is connected to contact 7. When the switching terminal is connected to the low-voltage terminal, contact 1 is connected to contact 10, contact 2 is connected to contact 11, contact 2 is connected to the speed regulating winding RC1, contact 3 is connected to contact 12, and contact 3 is connected to the... Between the speed regulating winding RC1 and the speed regulating winding RC3, contact 5 connects to contact 14, contact 6 connects to contact 15 and makes the main winding MC1 and the main winding MC2 parallel, contact 7 connects to contact 16, contact 8 connects to contact 17 and makes the auxiliary winding AC1 and the auxiliary winding AC2 parallel, and contact 9 connects to contact 18 and capacitor C1 respectively, and makes capacitor C1 and capacitor C2 parallel and then connected to the second lead of the plug.

[0012] Furthermore, the high-voltage contacts include contacts 19, 20, 21, 22, 23, 24, 25, and 27. One end of contact 19 is connected to contact 2, and the other end is connected to contact 22. Contact 23 is connected to contact 6, and contact 25 is connected to contact 8. Contacts 20, 21, 24, 26, and 27 are empty contacts. When the switching terminal is connected to the high-voltage terminal, contact 10 is connected to contact 19, contact 11 is connected to contact 20, contact 12 is connected to contact 21, contact 13 is connected to contact 22, contact 14 is connected to contact 23, contact 15 is connected to contact 24, contact 16 is connected to contact 25, contact 17 is connected to contact 26, and contact 18 is connected to contact 27.

[0013] Furthermore, the second lead is connected to a fuse.

[0014] Furthermore, the main winding MC1 and the main winding MC2 have the same winding wire diameter and number of turns, and both are completed by winding two wires together once.

[0015] Furthermore, the secondary winding AC1 and the secondary winding AC2 have the same winding wire diameter and number of turns, and both are completed by winding two wires in parallel once.

[0016] Furthermore, the speed regulating windings RC1, RC2, RC3, and RC4 all have the same winding wire diameter and number of turns, and each is completed by winding four wires together in one go.

[0017] Furthermore, the voltage of the low-voltage end is 100V to 127V, and the frequency is 50Hz or 60Hz; the voltage of the high-voltage end is 220V to 240V, and the frequency is 50Hz or 60Hz.

[0018] The beneficial effects of this utility model are as follows: it adopts 2 sets of main windings, 2 sets of auxiliary windings and 4 sets of speed-regulating windings, and is equipped with 2 capacitors; at low voltage, the three types of windings are connected in parallel, the main windings and auxiliary windings are connected in parallel, and the 2 capacitors are connected in parallel; at high voltage, the three sets of windings are connected in series, the main windings and auxiliary windings are connected in parallel, and only 1 capacitor is used; in this way, each winding can be fully utilized at both high and low voltage, and the motor performance of each speed is basically the same. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the principle of existing technology;

[0020] Figure 2 This is a schematic diagram illustrating the principle of a dual-voltage, multi-stage tap-controlled single-phase induction motor according to an embodiment of this utility model.

[0021] Figure 3This is a simplified schematic diagram of the low-voltage principle of a dual-voltage multi-stage tap speed-regulating single-phase induction motor according to an embodiment of this utility model.

[0022] Figure 4 This is a simplified schematic diagram of the high-voltage principle of a dual-voltage, multi-stage tap-controlled single-phase induction motor according to an embodiment of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a dual-voltage, multi-stage tap-controlled single-phase induction motor, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit its scope.

[0024] Please refer to Figures 2-4 A dual-voltage, multi-speed tap-controlled single-phase induction motor, comprising:

[0025] The motor winding 100 includes two main windings, namely main winding MC1 and main winding MC2, two auxiliary windings, namely auxiliary winding AC1 and auxiliary winding AC2, and four speed regulating windings, namely speed regulating winding RC1, speed regulating winding RC2, speed regulating winding RC3 and speed regulating winding RC4.

[0026] The voltage switching switch 200 includes a low-voltage end composed of several low-voltage contacts, a high-voltage end composed of several high-voltage contacts, and a switching end composed of several switching contacts. The switching contacts are connected as one unit, and the motor winding 100 is electrically connected to the low-voltage end and the high-voltage end.

[0027] When the switching terminal is connected to the low-voltage terminal, the main winding MC1, main winding MC2, auxiliary winding AC1, and auxiliary winding AC2 are connected in parallel to form a low-voltage parallel group. A capacitor C1 and a capacitor C2 are connected in parallel between the main winding MC2 and the auxiliary winding AC1. The speed regulating winding RC1 and the speed regulating winding RC2 are connected in parallel to form a first speed regulating parallel group. The speed regulating winding RC3 and the speed regulating winding RC4 are connected in parallel to form a second speed regulating parallel group. The first speed regulating parallel group, the second speed regulating parallel group, and the low-voltage parallel group are connected in series in sequence.

[0028] When the switching terminal is connected to the high-voltage terminal, the main winding MC1 and the main winding MC2 are connected in series to form a main series group, the auxiliary winding AC1, the auxiliary winding AC2 and the capacitor C2 are connected in series to form a secondary series group, the main series group and the secondary series group are connected in parallel to form a high-voltage parallel group, and the speed regulating winding RC2, the speed regulating winding RC4, the speed regulating winding RC1, the speed regulating winding RC3 and the high-voltage parallel group are connected in series in sequence.

[0029] It employs two main windings, two auxiliary windings, and four speed-regulating windings, along with two capacitors. At low voltage, the three windings are connected in parallel, and the two capacitors are connected in parallel. At high voltage, the three windings are connected in series, the main winding and auxiliary winding are connected in parallel, and only one capacitor is used. In this way, each winding can be fully utilized at both high and low voltage, and the motor performance of each speed is basically the same.

[0030] Please refer to Figures 2-4 It also includes a gear shift switch 300, a first lead 510 of a connector 500 for the gear shift switch 300, and gear shift switches 300 including low, medium, and high gears. When the switching terminal is connected to the low-voltage terminal, the first parallel speed control group is located between the low and medium gears, and the second parallel speed control group is located between the medium and high gears. When the switching terminal is connected to the high-voltage terminal, the speed control windings RC2 and RC4 are located between the low and medium gears, and the speed control windings RC1 and RC3 are located between the medium and high gears. Gear shifting is performed through the speed control windings, rather than through the parallel group of capacitors and resistors, resulting in higher efficiency, lower energy consumption, better control precision and stability, better torque characteristics, no additional heating elements, controllable temperature rise, and low operating noise.

[0031] Please refer to Figure 2 The switching contacts include contacts 10, 11, 12, 13, 14, 15, 16, 17, and 18 connected in sequence. Contact 10 is connected to the medium speed setting. Contact 11 is connected to the speed control winding RC2 and the low speed setting respectively. Contact 12 is connected between the speed control winding RC2 and the speed control winding RC4. Contact 13 is connected to the speed control winding RC4. Contacts 14 and 15 are connected to the two ends of the main winding MC2 respectively. Contacts 16 and 17 are connected to the two ends of the auxiliary winding AC2 respectively. Contact 18 is connected to capacitor C2. Capacitor C2 is connected to the second lead 520 of plug 500.

[0032] Please refer to Figure 2 The low-voltage contacts include contacts 1, 2, 3, 4, 5, 6, 7, 8, and 9. Contact 1 is connected to contact 3, contact 4 is connected to contact 5, and contact 5 is connected to contact 7. When the switching terminal is connected to the low-voltage terminal, contact 1 is connected to contact 10, contact 2 is connected to contact 11, contact 2 is connected to the speed-regulating winding RC1, contact 3 is connected to contact 12, contact 3 is connected between the speed-regulating winding RC1 and the speed-regulating winding RC3, contact 5 is connected to contact 14, contact 6 is connected to contact 15 and the main winding MC1 and the main winding MC2 are connected in parallel, contact 7 is connected to contact 16, contact 8 is connected to contact 17 and the auxiliary winding AC1 and the auxiliary winding AC2 are connected in parallel, and contact 9 is connected to contact 18 and capacitor C1 respectively, and after connecting capacitor C1 and capacitor C2 in parallel, it is connected to the second lead 520 of plug 500.

[0033] Please refer to Figure 2The high-voltage contacts include contacts 19, 20, 21, 22, 23, 24, 25, and 27. One end of contact 19 is connected to contact 2, and the other end is connected to contact 22. Contact 23 is connected to contact 6, and contact 25 is connected to contact 8. Contacts 20, 21, 24, 26, and 27 are empty contacts. When the switching terminal is connected to the high-voltage terminal, contact 10 is connected to contact 19, contact 11 is connected to contact 20, contact 12 is connected to contact 21, contact 13 is connected to contact 22, contact 14 is connected to contact 23, contact 15 is connected to contact 24, contact 16 is connected to contact 25, contact 17 is connected to contact 26, and contact 18 is connected to contact 27.

[0034] Please refer to Figures 2-4 The second lead 520 is connected to fuse 400. Understandably, fuse 400 refers to the thermal fuse.

[0035] Preferably, the main winding MC1 and the main winding MC2 have the same winding wire diameter and number of turns, and are both wound by two wires in parallel once to ensure consistency.

[0036] Preferably, the secondary winding AC1 and the secondary winding AC2 have the same winding wire diameter and number of turns, and are both wound by two wires in parallel once to ensure consistency.

[0037] Preferably, the speed regulating windings RC1, RC2, RC3, and RC4 have the same wire diameter and number of turns, and each is wound with four wires in one continuous winding to ensure consistency.

[0038] Preferably, the voltage of the low-voltage end is 100V to 127V, and the frequency is 50Hz or 60Hz; the voltage of the high-voltage end is 220V to 240V, and the frequency is 50Hz or 60Hz.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0041] In summary, the present invention provides a dual-voltage, multi-speed tap-controlled single-phase induction motor, employing two main windings, two auxiliary windings, and four speed-regulating windings, along with two capacitors. The motor windings have 18 leads, compared to only four leads in existing designs. At low voltage, the three windings are connected in parallel, with the main and auxiliary windings connected in parallel, and the two capacitors connected in parallel. At high voltage, the three windings are connected in series, with the main and auxiliary windings connected in parallel, and only one capacitor is used. In this way, each winding can be fully utilized at both high and low voltage, and the motor performance at each speed is basically the same.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A dual voltage multi-gear tapped speed regulation single phase induction motor characterized by, The motor winding includes two main windings, i.e., main windings MC1 and MC2, two auxiliary windings, i.e., auxiliary windings AC1 and AC2, and four speed-regulating windings, i.e., speed-regulating windings RC1, RC2, RC3 and RC4. The voltage switching switch includes a low-voltage end composed of a plurality of low-voltage contacts, a high-voltage end composed of a plurality of high-voltage contacts, and a switching end composed of a plurality of switching contacts. When the switching end is in communication with the low-voltage end, the main windings MC1 and MC2 and the auxiliary windings AC1 and AC2 are connected in parallel to form a low-voltage parallel group, and a capacitor C1 and a capacitor C2 are connected between the main winding MC2 and the auxiliary winding AC1. When the switching end is in communication with the high-voltage end, the main windings MC1 and MC2 are connected in series to form a main series group, the auxiliary windings AC1 and AC2 and the capacitor C2 are connected in series to form an auxiliary series group, the main series group and the auxiliary series group are connected in parallel to form a high-voltage parallel group, and the speed-regulating windings RC2, RC4, RC1 and RC3 are connected in series with the high-voltage parallel group. The gear switching switch is connected to the first lead of the plug and includes a low gear, a middle gear and a high gear.

2. A dual voltage multi-tap speed tapped single phase induction motor as claimed in claim 1, wherein, The switching contacts include a contact 10, a contact 11, a contact 12, a contact 13, a contact 14, a contact 15, a contact 16, a contact 17 and a contact 18 connected in series, the contact 10 is connected to the middle gear, the contact 11 is connected to the speed-regulating winding RC2 and the low gear, the contact 12 is connected between the speed-regulating winding RC2 and the speed-regulating winding RC4, the contact 13 is connected to the speed-regulating winding RC4, the contact 14 and the contact 15 are connected to both ends of the main winding MC2, the contact 16 and the contact 17 are connected to both ends of the auxiliary winding AC2, and the contact 18 is connected to the capacitor C2, and the capacitor C2 is connected to the second lead of the plug.

3. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 2 wherein, ​ 4. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 3 wherein, The low-voltage contact includes contact 1, contact 2, contact 3, contact 4, contact 5, contact 6, contact 7, contact 8 and contact 9, the contact 1 is connected with the contact 3, the contact 4 connects the contact 5, the contact 5 connects the contact 7; when the switching end is communicated with the low-voltage end, the contact 1 is connected with the contact 10, the contact 2 is connected with the contact 11, the contact 2 is connected with the speed regulating winding RC1, the contact 3 is connected with the contact 12, the contact 3 is connected between the speed regulating winding RC1 and the speed regulating winding RC3, the contact 5 is connected with the contact 14, the contact 6 is connected with the contact 15 and the main winding MC1 and the main winding MC2 are connected in parallel, the contact 7 is connected with the contact 16, the contact 8 is connected with the contact 17 and the auxiliary winding AC1 and the auxiliary winding AC2 are connected in parallel, the contact 9 is connected with the contact 18 and the capacitor C1 respectively, and the capacitor C1 is connected with the capacitor C2 in parallel and then connected to the second lead of the plug.

5. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 4 wherein, The high-voltage contact includes contact 19, contact 20, contact 21, contact 22, contact 23, contact 24, contact 25, contact 25, contact 27, one end of the contact 19 is connected with the contact 2 and the other end is connected with the contact 22, the contact 23 is connected with the contact 6, the contact 25 is connected with the contact 8, the contact 20, the contact 21, the contact 24, the contact 26 and the contact 27 are empty contacts; when the switching end is communicated with the high-voltage end, the contact 10 is connected with the contact 19, the contact 11 is connected with the contact 20, the contact 12 is connected with the contact 21, the contact 13 is connected with the contact 22, the contact 14 is connected with the contact 23, the contact 15 is connected with the contact 24, the contact 16 is connected with the contact 25, the contact 17 is connected with the contact 26, and the contact 18 is connected with the contact 27.

6. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 5 wherein, The second lead is connected with a fuse.

7. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 1, wherein, The winding wire diameter and the number of turns of the main winding MC1 and the main winding MC2 are the same, and both are completed by 2 wires and winding once.

8. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 1, wherein, The winding wire diameter and the number of turns of the auxiliary winding AC1 and the auxiliary winding AC2 are the same, and both are completed by 2 wires and winding once.

9. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 1, wherein, The winding wire diameter and the number of turns of the speed regulating winding RC1, the speed regulating winding RC2, the speed regulating winding RC3 and the speed regulating winding RC4 are the same, and all are completed by 4 wires and winding once.

10. A dual voltage multi-tap speed setting single phase induction motor as claimed in claim 1, wherein, The voltage of the low-voltage end is 100V to 127V, and the frequency is 50Hz or 60Hz; the voltage of the high-voltage end is 220V to 240V, and the frequency is 50Hz or 60Hz.

Images