Method and device for setting the winding connection of a series motor, series motor

Abstract

The application relates to a setting method and device of a winding connection mode of a series-excited motor and the series-excited motor. The series-excited motor is applied to a washing equipment and comprises two full windings corresponding to two poles of the series-excited motor, each of the two full windings comprises an inner circle winding and an outer circle winding. When the washing equipment runs in a washing mode, the inner circle winding of a first full winding in the two full windings is connected in series with two windings of a second full winding in the two full windings, and the first full winding and the second full winding are powered to run, and the outer circle winding of the first full winding is not powered. When the washing equipment runs in a high-speed dehydration mode, the outer circle winding of the first full winding is connected in parallel with the outer circle winding of the second full winding, and the outer circle winding of the first full winding and the outer circle winding of the second full winding are powered to run. The application solves the technical problems that the output power of a stator winding of a series-excited motor for a drum washing machine is insufficient in a series connection mode, and the motor temperature rise test is difficult to pass in a parallel connection mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a setting method and device for winding connection mode of a series excited electric machine and the series excited electric machine. BACKGROUND

[0002] There are two forms of series connection and parallel connection for the stator winding connection of the series excited electric machine for drum washing machines, each having its advantages and disadvantages. In the temperature rise test, the power of the electric machine with parallel connection of the winding increases too much when the voltage is raised, and the temperature rise test of the electric machine is difficult to pass, so the series connection is the main winding connection mode of the stator winding.

[0003] The disadvantage of the series connection is that the output power of the electric machine is low, which cannot meet the requirements on large-capacity washing machines of 10Kg and above or washing machines with super-high spin speed (≥1500rpm). If matching is required, the cost of the core and winding material must be greatly increased, the performance-price ratio of the electric machine is reduced, and the market competitiveness is decreased. In the case where the increase in the cost of the electric machine material is not obvious, the electric machine with parallel connection of the stator winding with larger output power cannot pass the temperature rise test under 1.06 times of the rated voltage.

[0004] At present, no effective solution has been proposed for the above problems. SUMMARY

[0005] The setting method and device for winding connection mode of a series excited electric machine and the series excited electric machine provided by the embodiments of the present application at least solve the problems that the series excited electric machine for drum washing machines adopts series connection of the stator winding to output insufficient power, and the electric machine with parallel connection of the winding is difficult to pass the temperature rise test.

[0006] According to an aspect of the embodiments of the present application, a series excited electric machine is provided, which is applied to a washing device and includes a two-pole stator and two full windings corresponding to the two poles of the two-pole stator. Each of the two full windings includes an inner circle winding and an outer circle winding. When the washing device is running in a washing mode, the inner circle winding of a first full winding in the two full windings is connected in series with two windings included in a second full winding in the two full windings, and is powered to run, and the outer circle winding of the first full winding is not powered. When the washing device is running in a high-speed spin-drying mode, the outer circle winding of the first full winding is connected in parallel with the outer circle winding of the second full winding, and is powered to run, and the inner circle winding of the first full winding and the inner circle winding of the second full winding are not powered.

[0007] Optionally, each full winding includes two windings with the same winding wire diameter, the same full winding turn number and the same tap turn number.

[0008] Optionally, a dust cover is arranged on the bearing of the series motor, and the dust cover is not in contact with the inner ring winding of the two full windings.

[0009] According to another aspect of the embodiments of the present application, a method for setting a winding connection mode of a series motor is also provided. The method is applied to the series motor in any of the above embodiments, and includes the following steps: determining an operation mode of a washing device in which the series motor is located; and setting a connection mode of a full winding of the series motor according to the operation mode of the washing device, wherein the connection mode of the full winding includes series connection and parallel connection, and different operation modes correspond to different connection modes.

[0010] According to another aspect of the embodiments of the present application, a device for setting a winding connection mode of a series motor is also provided. The device is used to execute the method for setting a winding connection mode of a series motor in the above embodiments, and includes: a determining module configured to determine an operation mode of a washing device in which the series motor is located; and a setting module configured to set a connection mode of a full winding of the series motor according to the operation mode of the washing device, wherein the connection mode of the full winding includes series connection and parallel connection, and different operation modes correspond to different connection modes.

[0011] According to still another aspect of the embodiments of the present application, an electronic device is also provided. The electronic device includes a processor, and a memory storing a program. The program includes instructions that, when executed by the processor, cause the processor to perform the method in any of the above embodiments.

[0012] According to still another aspect of the embodiments of the present application, a non-transitory machine-readable medium storing computer instructions is also provided. The computer instructions are used to cause a computer to perform the method in any of the above embodiments.

[0013] The embodiments of the present application have the following beneficial effects:

[0014] In the embodiment of the present application, a series excited motor is provided, which is applied to a washing device and comprises two full windings, each of which comprises an inner winding and an outer winding. When the washing device is running in a washing mode, the inner winding of a first full winding in the two full windings is connected in series with two windings included in a second full winding in the two full windings, and is powered to run, and the outer winding of the first full winding is not powered. When the washing device is running in a high-speed dehydration mode, the outer winding of the first full winding is connected in parallel with the outer winding of the second full winding, and is powered to run, and the inner winding of the first full winding and the inner winding of the second full winding are not powered. According to the working characteristics of the washing machine, and in combination with the respective advantages of the two wiring forms of series connection and parallel connection of the stator windings of the series excited motor of the current drum washing machine, the mixed wiring form is proposed. In the washing machine washing, the wiring mode of series connection is adopted, and in the high-speed dehydration, the wiring mode of parallel connection is adopted, so that the technical effects of meeting the output power of the motor and realizing the washing temperature rise test of the motor are realized, and the technical problems of insufficient output power of the series excited motor stator winding of the drum washing machine in the series connection wiring mode and difficulty in passing the motor temperature rise test in the parallel connection wiring mode are solved.

[0015] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more apparent. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other embodiments according to these drawings without any creative labor.

[0017] Figure 1 A schematic diagram of series connection of stator windings of a washing machine motor is shown;

[0018] Figure 2 A schematic diagram of parallel connection of stator windings of a washing machine motor is shown;

[0019] Figure 3 A schematic diagram of mixed connection of stator windings of a washing machine motor according to an embodiment of the present application is shown;

[0020] Figure 4 A flowchart of a setting method of a winding connection mode of a series excited motor according to an embodiment of the present application is shown;

[0021] Figure 5is a structural block diagram of a setting device of a winding connection mode of a series excited motor according to an embodiment of the present application;

[0022] Figure 6 is a structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] Embodiments of the present application will be described in more detail by referring to the drawings. Although some embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms, and should not be construed as being limited to the embodiments set forth herein, but rather, these embodiments are provided so as to more completely and thoroughly understand the present application. It is understood that the drawings and embodiments of the present application are for exemplary purposes only, and are not intended to limit the scope of protection of the present application.

[0024] In order to better understand the embodiments of the present application, the technical terms involved in the embodiments of the present application are explained as follows:

[0025] The series excited motor, also known as series motor, is a kind of DC motor.

[0026] The full winding is divided into full winding and half winding, and the difference between the two is the connection mode of the winding. In the full winding, both ends of each coil are directly connected to the slots of the motor, forming a complete circuit; while in the half winding, the two coils in the slot are connected in parallel with other coils on different chips, forming two circuits. Therefore, the number of coils of the half winding is only half of that of the full winding.

[0027] In the related art, there is a problem that the output power of the stator winding of the series excited motor for the drum washing machine is insufficient when adopting the series connection mode, and the temperature rise test of the motor is difficult to pass when adopting the parallel connection mode. In order to solve this problem, a mixed winding connection mode of the stator winding is provided in the embodiments of the present application. This connection mode, first, makes the stator working winding of the drum washing machine in series connection in the washing state, successfully solving the problem that the washing temperature rise of the pure parallel winding exceeds the standard under 1.06 times rated voltage; second, the stator working winding is in parallel connection in the high-speed dehydration state, successfully solving the problem that the output power of the pure winding in series connection is low.

[0028] In addition, the following three points should be considered in the design process: 1. The winding slot fill rate of the design must be suitable for production; 2. The requirement of starting under 0.85 times rated voltage of the national standard should be met; 3. The conversion problem of winding series connection low-speed operation to parallel connection high-speed operation under the dehydration program state. The following will be described in detail.

[0029] All washing machines are characterized by: in the washing mode, low speed, long running time, poor heat dissipation condition of the motor itself; in the high-speed dehydration mode, high speed, short running time, good heat dissipation condition of the motor itself. This feature causes the maximum temperature rise of the motor of the washing machine to often occur in the washing stage.

[0030] Figure 1 A schematic diagram of a stator winding series connection of a washing machine motor is shown, U and Z respectively represent the full winding of two poles (N pole and S pole), U includes windings U1 and U2, Z includes windings Z1 and Z2, the wire diameter of the pole winding and the full winding number of turns and the number of turns of the tap are completely the same, that is, U=Z, U1=Z1, U2=Z2, which is suitable for two-pole counter-winding production mode with high winding efficiency. The working winding lead colors of the diagram are the same, that is, washing, low-speed dehydration, working winding lead red, brown; high-speed dehydration, working winding lead red, gray.

[0031] As Figure 1 shown is a series connection of stator windings, the two-pole working winding is: in the washing and low-speed dehydration mode, the full windings U and Z are connected in series to pass current and participate in operation; in the high-speed dehydration mode, the U2 and Z2 tap windings on the two poles participate in operation, still connected in series.

[0032] The advantage of series connection is that when the power supply voltage increases, the current increases by a small margin, the motor loss increases by a small margin, and the temperature rise increases by a small margin; the disadvantage is that the output power is small, and it is difficult to meet the requirements of high-speed dehydration of the motor.

[0033] Figure 2 A schematic diagram of a stator winding parallel connection of a washing machine motor is shown, as Figure 2 shown, the windings are connected in parallel, the two-pole working winding is: in the washing and low-speed dehydration mode, the full windings U and Z are connected in parallel to pass current and participate in operation; in the high-speed dehydration mode, the U2 and Z2 tap windings on the two poles participate in operation, still connected in parallel.

[0034] The advantage of parallel connection is that it can output large power and is suitable for high-speed dehydration of the motor; the disadvantage is that when the power supply voltage increases, the current increases by a large margin, the motor loss increases by a large margin, and the motor temperature rise is difficult to meet the requirements.

[0035] According to the working characteristics of the washing machine, combined with the respective advantages of the two connection forms of the series connection and parallel connection of the stator winding of the current drum washing machine motor, the application proposes a hybrid connection mode. Moreover, according to the experience of the influence of the wire diameter and the number of turns of the stator winding on the main performance, temperature rise and torque of the motor, the appropriate wire diameter is selected, and the reasonable slot fill rate is designed, so that the existing equipment and tooling can be used for production and manufacturing.

[0036] According to an optional embodiment of the present application, a series excited motor applied to a washing device is provided, comprising: a two-pole stator and two full windings corresponding to the two poles of the two-pole stator, each of the two full windings comprising an inner coil winding and an outer coil winding, wherein when the washing device is running in a washing mode, the inner coil winding of a first full winding of the two full windings is connected in series with two windings comprising a second full winding of the two full windings, and is powered to run, and the outer coil winding of the first full winding is not powered; when the washing device is running in a high-speed dehydration mode, the outer coil winding of the first full winding is connected in parallel with the outer coil winding of the second full winding, and is powered to run, and the inner coil winding of the first full winding and the inner coil winding of the second full winding are both not powered.

[0037] As an optional embodiment of the present application, each full winding comprises two windings with the same winding wire diameter, full winding turn number and tap turn number.

[0038] Figure 3 is a schematic diagram of a mixed connection of a stator winding of a motor for a washing machine according to an embodiment of the present application, in which U1 and Z1 are inner coil windings, and U2 and Z2 are outer coil windings. Figure 3

[0039] In the embodiment of the present application, when the washing machine is in a washing or low-speed dehydration running mode, the windings U1 and Z (full windings) are connected in series and powered to participate in running work, and the winding U2 does not participate in power work.

[0040] The characteristic of the series excited motor washing winding is that the two-pole stator winding participating in the work is in an asymmetric structure, that is, the number of turns of the washing winding participating in the running is large in one pole (full winding Z) and small in one pole (winding U1).

[0041] The series connection of the stator winding of the series excited motor during washing of the washing machine avoids the phenomenon of 1.06 times rated voltage temperature rise exceeding the standard caused by the parallel connection of the winding.

[0042] In the embodiment of the present application, when the washing machine is in a high-speed dehydration running mode, the tap windings U2 and Z2 on the two poles participate in the running work, which are connected in parallel. When the low-speed dehydration is converted to the high-speed dehydration, that is, when the winding U1+Z is converted to the parallel U2+Z2 in series connection, the magnetic field direction does not change, that is, the motor rotation direction does not change, and the smooth switching is realized.

[0043] The characteristic of the high-speed dehydration winding of the series excited motor is that the stator winding participating in the work is in a symmetric structure, that is, the number of turns of the high-speed dehydration winding participating in the running is the same in the two poles (windings U2 and Z2).

[0044] ​In the embodiments of the present application, the stator tap winding of one of the two poles is shared in the implementation of the washing work winding series connection and the high-drying work winding parallel connection design, the enameled wire is reasonably utilized, and material waste can be avoided.

[0045] When the washing machine is high-speed dehydrated, the stator winding of the series-excited motor is connected in parallel, and the problem of insufficient output power caused by the series connection of the winding is solved.

[0046] In some optional embodiments of the present application, a dustproof cover is arranged on the bearing of the series-excited motor, and the dustproof cover does not contact the inner ring winding of the two full windings.

[0047] In a preferred embodiment, the bearing of the series-excited motor adopts a non-contact type iron cover for the inner ring winding, which is different from the contact type rubber cover bearing used in large quantities, reduces the friction loss during the operation of the motor, and is beneficial to the high-speed operation of the motor.

[0048] In addition, in the specific implementation process, the equipment and tooling required for the production of the series-excited motor are all special-purpose ones corresponding to the design punching sheet. At present, the series-excited motor for washing machines is gradually being replaced by brushless direct current motors (BLDC motors), and it is not cost-effective to develop and design new high-efficiency series-excited motor punching sheets. The embodiments of the present application design the motor meeting the above requirements without increasing the investment in equipment and tooling. The specific implementation scheme is as follows:

[0049] The punching sheet adopts the mass-produced washing machine series-excited motor 63 punching sheet, the core stack thickness adopts the mass-produced 52 mm, and any mold and tooling does not need to be increased.

[0050] The rotor adopts the mass-produced scheme, and the general rotor is used, which avoids the management cost of separately manufacturing and circulating parts.

[0051] The motor stator winding wire diameter adopts the mass-produced specification, does not produce a new material number, is beneficial to the procurement and management of materials, the winding process adopts the mass-produced double-packing pair winding mode with a tap, the worker is skilled in operation, and does not need to be trained separately.

[0052] The series-excited motor provided in the embodiments of the present application can realize the performance requirements of the required motor on the basis of zero investment by using the existing punching sheet, equipment and tooling. The stator winding connection of the series-excited motor is a mixed connection of series connection and parallel connection, realizes the series connection of the work winding during washing and the parallel connection of the work winding during high-drying, and realizes the smooth conversion of the series connection of the winding during low-speed dehydration to the parallel connection of the winding during high-speed dehydration.

[0053] The embodiments of the present application also provide a setting method of the winding connection mode of a series-excited motor, which is applied to the series-excited motor in any one of the above embodiments.

[0054] Figure 4is a flow chart of a setting method of a winding connection mode of a series motor according to an embodiment of the present application, the method is applied to the series motor in any of the above embodiments, and includes the following steps:

[0055] In step S402, the operation mode of the washing equipment in which the series motor is located is determined.

[0056] In step S404, the connection mode of the full winding of the series motor is set according to the operation mode of the washing equipment, wherein the connection mode of the full winding includes series connection and parallel connection, and different operation modes correspond to different connection modes.

[0057] According to an optional embodiment of the present application, the series motor includes two full windings, each of the two full windings includes an inner winding and an outer winding, and step S402 of setting the connection mode of the full winding of the series motor according to the operation mode of the washing equipment includes the following steps: when the operation mode of the washing equipment is the washing mode, the inner winding of a first full winding in the two full windings is connected in series with two windings included in a second full winding in the two full windings, and is powered to operate, wherein the outer winding of the first full winding is not powered; when the operation mode of the washing equipment is the high-speed dehydration mode, the outer winding of the first full winding is connected in parallel with the outer winding of the second full winding, and is powered to operate, wherein the inner winding of the first full winding and the inner winding of the second full winding are not powered.

[0058] As an optional embodiment of the present application, each full winding includes two windings with the same winding wire diameter, winding full winding turn number and tap turn number.

[0059] The mixed connection mode proposed in the embodiments of the present application has the same winding wire diameter, winding full winding turn number and tap turn number for the two-pole winding, and still performs the two-pole winding process winding mode during mass production. The two-pole working winding is:

[0060] As shown in Figure 3 , U and Z respectively represent the full windings of the two poles (N pole and S pole), U includes windings U1 and U2, and Z includes windings Z1 and Z2, the winding wire diameter, winding full winding turn number and tap turn number of the two-pole winding are completely the same, that is, U=Z, U1=Z1, U2=Z2, which is suitable for the two-pole winding production mode with high winding efficiency. U1 and Z1 are inner windings, and U2 and Z2 are outer windings.

[0061] When the washing machine is in the washing or low-speed dehydration operation mode, the windings U1 and Z (full winding) are connected in series and powered to participate in operation, and the winding U2 does not participate in power operation.

[0062] When the washing machine is in the high-speed dehydration operation mode, the tap windings U2 and Z2 on the two poles participate in the operation, and are connected in parallel. When the low-speed dehydration is switched to the high-speed dehydration, i.e., when the winding U1+Z is switched to the parallel connection U2+Z2, the magnetic field direction does not change, i.e., the motor rotation direction does not change, and the switching is realized smoothly.

[0063] As an optional embodiment of the present application, a dust cover is arranged on the bearing of the series motor, and the dust cover does not contact the inner ring windings of the two full windings.

[0064] In a preferred embodiment, the bearing of the series motor adopts a non-contact iron cover type in which the dust cover does not contact the inner ring winding, unlike the contact rubber cover bearing used in large quantities, so that the friction loss of the motor during operation is reduced, and the high-speed operation of the motor is facilitated.

[0065] The setting method of the winding connection mode of the series motor provided in the embodiments of the present application adopts the series connection mode during washing and the parallel connection mode during high-speed dehydration, so that the output power of the motor is satisfied, and the washing temperature rise test of the motor is realized.

[0066] Based on the setting method of the winding connection mode of the series motor provided in the embodiments of the present application, the embodiments of the present application further provide a setting device of the winding connection mode of the series motor for executing the setting method of the winding connection mode of the series motor in the above embodiments, as shown in Figure 5 The device comprises:

[0067] A determination module 50 is configured to determine the operation mode of the washing equipment in which the series motor is located.

[0068] A setting module 52 is configured to set the connection mode of the full winding of the series motor according to the operation mode of the washing equipment, wherein the connection mode of the full winding includes series connection and parallel connection, and different operation modes correspond to different connection modes.

[0069] The setting device of the winding connection mode of the series motor provided in the embodiments of the present application adopts the series connection mode during washing and the parallel connection mode during high-speed dehydration, so that the output power of the motor is satisfied, and the washing temperature rise test of the motor is realized.

[0070] It should be noted that, Figure 5 The preferred implementation of the embodiments shown in Figure 4 The related description of the embodiments can be referred to, and will not be described here.

[0071] The embodiment of the present application further provides an electronic device, comprising: at least one processor; and a memory connected with the at least one processor. The memory stores a computer program which can be executed by the at least one processor, and the computer program is used for making the electronic device execute the method of the embodiment of the present application when executed by the at least one processor.

[0072] The embodiment of the present application further provides a non-transitory machine readable medium storing a computer program, wherein the computer program is used for making a computer execute the method of the embodiment of the present application when executed by a processor of the computer.

[0073] The embodiment of the present application further provides a computer program product, comprising a computer program, wherein the computer program is used for making a computer execute the method of the embodiment of the present application when executed by a processor of the computer.

[0074] Reference Figure 6 A block diagram of an electronic device that can be used as a server or a client device in accordance with the embodiments of the present application will now be described, which is an example of a hardware device that can be used in various aspects of the present application. The electronic device is intended to represent a wide variety of digital electronic computing devices, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computing devices. The electronic device can also represent a wide variety of mobile devices, such as personal digital assistants, cellular telephones, smart phones, wearable devices, and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application described and / or claimed in this document.

[0075] As shown in Figure 6 , the electronic device includes a computing unit 601 that can perform various appropriate actions and processes in accordance with a computer program stored in a read-only memory (ROM) 602 or a computer program loaded from a storage unit 608 into a random access memory (RAM) 603. Various programs and data required for operation of the electronic device can also be stored in the RAM 603. The computing unit 601, the ROM 602, and the RAM 603 are connected to each other through a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0076] A plurality of components in the electronic device are connected to the I / O interface 605, including an input unit 606, an output unit 607, a storage unit 608, and a communication unit 609. The input unit 606 can be any type of device that can input information to the electronic device, and can receive inputted digital or character information, and generate key signal inputs related to user settings and / or function controls of the electronic device. The output unit 607 can be any type of device that can present information, and can include, but is not limited to, a display, a speaker, a video / audio output terminal, a vibrator, and / or a printer. The storage unit 608 can include, but is not limited to, a magnetic disk, an optical disk. The communication unit 609 allows the electronic device to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks, and can include, but is not limited to, a modem, a network card, an infrared communication device, a wireless communication transceiver, and / or a chipset, such as a Bluetooth device, a WiFi device, a WiMax device, a cellular communication device, and / or the like.

[0077] The computing unit 601 can be various general and / or special purpose processing components having processing and computing capabilities. Some examples of the computing unit 601 include, but are not limited to, a CPU, a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The computing unit 601 performs various methods and processes described above. For example, in some embodiments, the method embodiments of the present application can be implemented as a computer program tangibly embodied in a machine-readable medium, such as the storage unit 608. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device via the ROM 602 and / or the communication unit 609. In some embodiments, the computing unit 601 can be configured to perform the above-described methods by any other appropriate means, such as by means of firmware.

[0078] The computer program for implementing the method embodiments of the present application can be written in any combination of one or more programming languages. The computer program can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed by the processor or controller, implements the functions / operations specified in the flowcharts and / or block diagrams. The computer program can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine or server, or entirely on a remote machine or server.

[0079] In the context of the embodiments of the present application, a machine-readable medium can be a tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable signal medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium will include one or more of the following: an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0080] It should be noted that the term "comprising" and variations of the term "comprising", to be used in the embodiments of the present application, are intended to mean "including but not limited to". The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The terms "a" or "an", as used in the embodiments of the present application, are illustrative and do not limit the number to one. It should be understood by those skilled in the art that "one", "multiple", or "plurality" are illustrative and are not limiting unless the context clearly indicates otherwise.

[0081] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the embodiments of the present application are information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation portal for user to choose authorization or refusal.

[0082] The various steps described in the method embodiments provided by the embodiments of the present application can be executed in different orders and / or in parallel. In addition, the method embodiments can include additional steps and / or omit the execution of the steps shown. The scope of protection of the present application is not limited in this respect.

[0083] The word "implementation" in this description refers to a specific feature, structure, or characteristic described in connection with an implementation example can be included in at least one implementation of the present application. The phrase appears in various places throughout the specification is not necessarily meant to refer to the same implementation, nor is it meant to imply that the implementation is preferred over, or inherently more "implementable" than other implementations. Each of the various implementations described in this specification are related to each other in one or more ways. Particularly, for device, apparatus, system implementations, since they are substantially similar to method implementations, the description is relatively simple and the relevant parts are referred to the parts of the method implementation description.

[0084] The above-described implementations are merely some implementations of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of patent protection. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A dynamo electric machine characterized in that, The series motor is applied to a washing device, comprising a two-pole stator and two full windings corresponding to two poles of the two-pole stator, each of the two full windings comprising an inner coil winding and an outer coil winding, wherein, when the washing device is running in a washing mode, the inner coil winding of a first full winding in the two full windings is connected in series with two coil windings included in a second full winding in the two full windings, and is powered to run, and the outer coil winding of the first full winding is not powered; when the washing device is running in a high-speed dehydration mode, the outer coil winding of the first full winding is connected in parallel with the outer coil winding of the second full winding, and is powered to run, and the inner coil winding of the first full winding and the inner coil winding of the second full winding are not powered.

2. The dynamo electric machine of claim 1, wherein, Each full winding comprises two coil windings with the same coil wire diameter, full winding turn number and tap turn number.

3. The dynamo electric machine of claim 1, wherein, A dustproof cover is arranged on a bearing of the series motor, and the dustproof cover does not contact the inner coil windings of the two full windings.

4. A method of setting a winding connection of a series motor, the method being applied to the series motor according to any one of claims 1 to 3, characterized in that, The method comprises the following steps: determining a running mode of a washing device in which the series motor is located; setting a wiring mode of full windings of the series motor according to the running mode of the washing device, wherein the wiring mode of the full windings comprises series connection and parallel connection, and different running modes correspond to different wiring modes.

5. A setting device for the winding connection of a series excited electric machine for carrying out the method as claimed in claim 4, characterized in that The method comprises: a determining module configured to determine a running mode of a washing device in which the series motor is located; a setting module configured to set a wiring mode of full windings of the series motor according to the running mode of the washing device, wherein the wiring mode of the full windings comprises series connection and parallel connection, and different running modes correspond to different wiring modes.

6. An electronic device comprising: A processor and a memory storing programs, characterized in that the programs comprise instructions which, when executed by the processor, cause the processor to perform the method according to claim 4.

7. A non-transitory machine-readable medium having stored thereon computer instructions, wherein: The computer instructions are used to cause the computer to perform the method according to claim 4.

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