CN112680925B - Device for detecting failure of washing machine - Google Patents
Device for detecting failure of washing machine Download PDFInfo
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- CN112680925B CN112680925B CN202011475605.8A CN202011475605A CN112680925B CN 112680925 B CN112680925 B CN 112680925B CN 202011475605 A CN202011475605 A CN 202011475605A CN 112680925 B CN112680925 B CN 112680925B
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Abstract
There is provided an apparatus for detecting malfunction of a washing machine, including: the communication circuit is used for carrying out data communication with a component to be detected in the washing machine through an interface and inputting the communicated data into the control circuit; the starting detection circuit starts detection input according to the fault type to be detected and inputs the input fault type into the control circuit; and the control circuit detects that the communication circuit has data and the start detection circuit has input, performs washing machine fault detection according to a preset communication protocol and control logic, and outputs a fault detection result. By the scheme of the invention, the faults of related components in the washing machine can be accurately and quickly detected, the fault location is quickly positioned for detection personnel, and the fault detection and maintenance efficiency is improved.
Description
Technical Field
The invention relates to the field of intelligent control, in particular to a device for detecting faults of a washing machine.
Background
In the current society developing at a high speed, along with the acceleration of life rhythm and the improvement of life quality, the requirements on various electric appliances cannot meet simple use functions, and the experience feeling of safety, intellectualization and product public praise determination become indispensable consideration factors when people select the life electric appliances.
When the washing machine breaks down, a maintenance technician is difficult to accurately judge the type of the fault and find out a maintenance mode corresponding to the fault in a short time; the existing solutions are that corresponding fault codes are displayed on a display panel of the washing machine, and then maintenance personnel find the maintenance modes corresponding to the fault codes by inquiring a maintenance manual, but the maintenance manual has various contents and is not easy to find; to further solve the problem of malfunction, some washing machines transmit a corresponding malfunction code to the mobile terminal and give maintenance guidance on the mobile terminal. However, the above processing method only provides a preliminary solution, and for some faults, the root cause of the fault cannot be found fundamentally and a corresponding solution can be provided. For example, when communication faults of the control panel and the motor drive board occur, the whole machine and the mobile terminal can report corresponding fault codes and give a preliminary maintenance suggestion, but a maintenance worker can hardly determine whether the fault is caused by a control panel circuit or a motor drive board circuit in a short time.
Therefore, an intelligent device integrating detection and maintenance is urgently needed. The device can more comprehensively detect the fault, help the maintenance technician to find the fault place fast, give corresponding maintenance guidance, improve maintenance efficiency.
The above information disclosed in the background section is only for further understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention provides a device for detecting faults of a washing machine, which can accurately and quickly detect the faults of related components in the washing machine, quickly locate the fault for detection personnel and improve the efficiency of fault detection and maintenance.
The invention relates to a device for detecting faults of a washing machine, which comprises: the communication circuit is used for carrying out data communication with a component to be detected in the washing machine through an interface and inputting the communicated data into the control circuit; the starting detection circuit starts detection input according to the fault type to be detected and inputs the input fault type into the control circuit; and the control circuit detects that the communication circuit has data and the start detection circuit has input, performs washing machine fault detection according to a preset communication protocol and control logic, and outputs a fault detection result.
According to one embodiment of the invention, the communication circuit enables the device to replace one or more components in the washing machine to communicate with other components in the washing machine.
According to an embodiment of the present invention, the start detection circuit is a key detection circuit, the key detection circuit includes a plurality of start detection keys, and the control circuit detects a fault type corresponding to a key when the start detection key is pressed.
According to one embodiment of the present invention, the fault types include a communication fault type and a non-communication fault type.
According to an embodiment of the present invention, the control circuit detects the communication circuit and the start detection circuit in a round-robin manner.
According to an embodiment of the present invention, the predetermined communication protocol includes a definition of a communication data packet between each laundry component, the communication data packet at least includes: the head code of communication, the type of the washing machine, the serial number of relevant parts of the washing machine and the reserved data.
According to one embodiment of the invention, the parts to be detected in the washing machine comprise one or more of a main control board, a display board and a motor control board.
According to one embodiment of the invention, wherein the control logic comprises:
after the device is connected to the washing machine through the communication circuit, when the starting detection key is pressed down, the control logic detects whether the whole washing machine has a communication fault; when the communication fault of the whole washing machine is detected, when any starting detection key is pressed for more than a first preset time, the communication fault of the washing machine is detected, an interface for connecting the device and the washing machine is determined according to the fact that different keys of a starting detection circuit are pressed down, and the corresponding communication fault is detected; when the communication fault of the whole washing machine is not detected, when any starting detection key is pressed for less than a first preset time, the non-communication fault detection of the washing machine is carried out, the machine type of the washing machine is automatically identified and the communication protocol is matched according to the communication data of the device and the part to be detected in the washing machine, and the communication data of the corresponding part in the washing machine is matched based on the corresponding part in the washing machine replaced by the device so as to execute the fault detection of the corresponding part in the washing machine.
According to an embodiment of the present invention, the washing machine further comprises a display device for displaying a corresponding malfunction on the display device and providing guidance to a service person when a malfunction of the washing machine is detected.
According to the scheme of the invention, when the communication fault of the display panel and the main control panel occurs, the intelligent device can be respectively connected and communicated with the display panel and the main control panel to determine which part of the communication fault is caused; the communication faults of the main control board and the motor driving board can be processed in the mode, and the board causing the communication faults is judged.
According to the scheme of the invention, when a sensor or load fault occurs, the intelligent device can replace the main control board to communicate with the display board, the motor driving board and the load, so that whether the load fault is caused by the circuit fault of the main control board or the fault of the sensor or the load per se can be found out.
According to the scheme of the invention, when the display panel has a fault, the intelligent detection device replaces the main control panel to communicate with the display panel, operates the corresponding display panel key, and judges whether the instruction data sent by the display panel is normal or not by reading the display panel data
According to the scheme of the invention, when the motor driving board has a fault, the intelligent device replaces the display board to generate a motor control instruction for the main control board, so that whether the motor has the fault or not is judged.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a circuit frame diagram of a washing machine according to an exemplary embodiment of the present invention.
Fig. 2 is a block diagram of an apparatus for intelligently detecting malfunction of a washing machine of the present invention according to an exemplary embodiment of the present invention.
Fig. 3 is a flowchart illustrating a detailed implementation of control logic in the apparatus for intelligently detecting malfunction of a washing machine according to an exemplary embodiment of the present invention.
Fig. 4 is a block diagram illustrating a control flow in the apparatus for intelligently detecting a malfunction of a washing machine according to an exemplary embodiment of the present invention.
Fig. 5 is a diagram illustrating a packet structure for communication in the apparatus for intelligently detecting malfunction of a washing machine according to an exemplary embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
As used herein, the terms "first," "second," and the like may be used to describe elements of exemplary embodiments of the invention. These terms are only used to distinguish one element from another element, and the inherent features or order of the corresponding elements and the like are not limited by the terms. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms, such as those defined in commonly used dictionaries, are to be interpreted as having a meaning that is consistent with their context in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Those skilled in the art will understand that the devices and methods of the present invention described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined solely by the claims. Features illustrated or described in connection with one exemplary embodiment may be combined with features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, a detailed description of related known functions or configurations is omitted to avoid unnecessarily obscuring the technical points of the present invention. In addition, the same reference numerals refer to the same circuits, modules or units throughout the description, and repeated descriptions of the same circuits, modules or units are omitted for brevity.
Further, it should be understood that one or more of the following methods or aspects thereof may be performed by at least one control unit or controller. The term "control unit", "controller", "control module" or "main control module" may refer to a hardware device including a memory and a processor, and the term "laundry machine" may refer to a device similar to a laundry machine. The memory or computer-readable storage medium is configured to store program instructions, while the processor is specifically configured to execute the program instructions to perform one or more processes that will be described further below. Moreover, it is to be appreciated that the following methods may be performed by including a processor in conjunction with one or more other components, as will be appreciated by one of ordinary skill in the art.
Fig. 1 is a circuit frame diagram of a washing machine according to an exemplary embodiment of the present invention.
As shown in fig. 1, the hardware circuit of the current washing machine is mainly divided into a display panel, a main control panel and a motor driving panel; the display panel is connected with the main control panel through No. 1 and No. 2 interfaces, and the main control panel is connected with the drive board through No. 2 and No. 3 interfaces; the user operates the display panel, the display panel sends the instruction to the main control panel, the main control realizes the logic control of all the loads of the whole machine, the control of the motor part is involved, and the main control panel sends the corresponding motor logic instruction to the motor driving board to realize the motor control.
Fig. 2 is a block diagram of an apparatus for intelligently detecting a malfunction of a washing machine (hereinafter, referred to as an "intelligent apparatus") of the present invention according to an exemplary embodiment of the present invention.
As shown in fig. 2, the intelligent device can replace the display panel to connect and communicate with the interface 2 of the main control panel through the interface 1, can also replace the main control panel to connect with the display panel interface 1 through the interface 2, connect with the drive board interface 4 through the interface 3, connect and communicate with the load through the load interface, and can also replace the drive board to connect with the interface 3 of the control panel through the interface 4.
The intelligent device can simulate a display panel, a main control panel or a motor drive panel shown in fig. 1 to communicate with other panels, when the whole machine breaks down, the intelligent device can replace one of the panels to work and determine the panel causing the fault, the panel causing the fault is firstly positioned, then the intelligent device analyzes the fault to quickly find out the fault, and corresponding maintenance guidance is provided for maintenance personnel.
Because the circuit frame of the washing machine at present is connected and communicated mostly in the mode of fig. 1, the display panel and the control panel are connected through No. 1 and No. 2 interfaces; the motor driving board and the control board are connected through No. 3 and No. 4 interfaces, and the control board directly controls all relevant loads of the washing machine. When the display panel, the main control panel, the motor driving panel or the load in fig. 1 send a fault, some faults cannot specifically judge the fault type, so the intelligent detection device in fig. 2 is designed, the intelligent detection device can replace a certain part in fig. 1 to work to identify the fault, for example, the intelligent detection device in fig. 2 can replace the display panel through the interface No. 1 to be connected with the interface No. 2 in fig. 1, work in cooperation with the control panel, and detect the corresponding fault type through communication protocol data.
According to one or more embodiments of the present invention, the smart device of the present invention comprises: the method comprises the following steps: the communication circuit is used for carrying out data communication with a component to be detected in the washing machine through an interface and inputting the communicated data into the control circuit; the starting detection circuit starts detection input according to the fault type to be detected and inputs the input fault type into the control circuit; and the control circuit detects that the communication circuit has data and the start detection circuit has input, performs washing machine fault detection according to a preset communication protocol and control logic, and outputs a fault detection result.
According to one or more embodiments of the present invention, the control circuit of the intelligent device shown in fig. 2 communicates with its corresponding interface circuit through the number 1-4 communication circuit, the load communication circuit and other interface communication circuits, respectively; the control circuit simultaneously detects the corresponding keys, and executes corresponding control flow according to the logic control diagram of fig. 3 when the corresponding keys are detected to be pressed. Wherein the communication circuits shown in fig. 2 include communication circuits No. 1-4, load communication circuits, and other interface communication circuits, the intelligent device of the present invention can increase or decrease the number of specific communication circuits as needed in actual operation and use.
According to one or more embodiments of the present invention, the control circuit may detect all the communication circuits and the keys in a round-robin manner, when communication data is detected in the communication circuit, the control chip may identify the communication data according to a communication protocol, and if the communication data is data corresponding to the communication circuit, the control chip may identify the data, identify a corresponding fault type according to the data, and display the fault type and a solution on the display screen for an after-sales person to perform maintenance guidance.
According to one or more embodiments of the present invention, the start detection circuit is a key detection circuit including a plurality of start detection keys, and the control circuit detects a fault type corresponding to a key when the start detection key is pressed.
According to one or more embodiments of the present invention, the intelligent detection apparatus includes three detection modules in the control circuit, and the three detection modules respectively detect a "display-type fault", a "load-type fault", and a "motor-drive-type fault"; these three modules can also detect the "communication type fault" communicated with them at the same time, when the detection device of fig. 2 is connected with the relevant interface of fig. 1 through different interfaces, the detection module of the corresponding interface works. Wherein interfaces 1 and 2 of fig. 2 detect "display type failure" and "display-control type communication failure", interfaces 3 and 4 detect "motor drive type failure" and "control-motor drive communication type failure", and load type interfaces detect "load type failure" and "control-load type communication failure".
Fig. 3 is a flowchart illustrating a detailed implementation of control logic in the apparatus for intelligently detecting malfunction of a washing machine according to an exemplary embodiment of the present invention.
As shown in fig. 3, after the intelligent device is connected to the washing machine through the communication circuit, when it is detected that the start detection key is pressed, the control logic detects whether the whole washing machine has a communication fault; when the communication fault of the whole washing machine is detected, when any starting detection key is pressed for more than a first preset time, the communication fault of the washing machine is detected, an interface for connecting the device and the washing machine is determined according to the fact that different keys of a starting detection circuit are pressed down, and the corresponding communication fault is detected; when the communication fault of the whole washing machine is not detected, when any starting detection key is pressed for less than a first preset time, the non-communication fault detection of the washing machine is carried out, the machine type of the washing machine is automatically identified and the communication protocol is matched according to the communication data of the device and the part to be detected in the washing machine, and the communication data of the corresponding part in the washing machine is matched based on the corresponding part in the washing machine replaced by the device so as to execute the fault detection of the corresponding part in the washing machine.
The intelligent device also comprises a display device which is used for displaying the corresponding fault on the display device and providing guidance for maintenance personnel when the fault of the washing machine is detected.
Fig. 4 is a block diagram illustrating a control flow in the apparatus for intelligently detecting a malfunction of a washing machine according to an exemplary embodiment of the present invention.
As shown in fig. 4, in the washing machine, the failure of the whole machine can be classified into two types, i.e., a communication failure and a non-communication failure: aiming at communication faults, an intelligent device is required to replace one end of a board at the communication fault to communicate with another board, and a key corresponding to the replaced board is pressed for exceeding first preset time (which can be 3 seconds) to detect the communication faults; and aiming at non-communication faults, connecting a corresponding interface, and pressing any key to start detection.
When communication fault detection is carried out, an interface of the intelligent device is connected with one interface with communication fault, a key corresponding to the substitute board is pressed for more than first preset time (3 seconds), the intelligent device carries out corresponding communication fault detection according to the control logic of the communication fault detection shown in the figure 3, a detection result is displayed on a display screen of the intelligent device after detection, and maintenance personnel are reminded to carry out corresponding maintenance; for example, when the display panel and the main control board are in communication failure, the display panel can not be judged to send the communication failure or the main control board is in communication failure, the intelligent device can be used for replacing the display panel to be communicated with the main control board, the interface 1 of the intelligent device is connected with the interface 2 of the main control board, the start detection key 1 is pressed for more than 3 seconds after the connection, if the intelligent device is normally communicated with the main control board, the display panel can be preliminarily judged to be in communication failure, and if the communication is abnormal, the main control board is in communication failure. When the intelligent device replaces the main control panel, the detection mode is the same as the above, but the start detection key 2 needs to be pressed; when the intelligent device replaces the driving board, the detection mode is the same as the above, but the start detection button 3 needs to be pressed.
In fig. 2, an example of 3 start detection buttons is shown, and in the design process of an actual intelligent device, a plurality of different types of fault start detection buttons can be configured according to the fault detection requirement of the washing machine.
When detecting the non-communication fault of the washing machine, the intelligent device can replace a display panel, a main control panel or a motor drive panel to work, and carry out fault detection and maintenance guidance on other parts; after the intelligent device is connected with other parts, pressing any key to start fault detection; after detecting that the key is pressed, the intelligent device starts to identify the data and performs matching communication according to the identified data; fig. 5 is a diagram illustrating a packet structure for performing communication in the apparatus for intelligently detecting malfunction of a washing machine according to an exemplary embodiment of the present invention, where data shown in fig. 5 is a packet in which a board and a board in a washing machine directly communicate with each other, the 1 st and 2 nd bytes 0x88 in fig. 4 represent a header code for communication as a header for identifying the start of data, the 3 rd byte 0x01 represents a model number of the washing machine, the 4 th byte 0x02 represents a model number of the board (i.e., a part number of a relevant part in the washing machine), and the second half byte represents other data (reserved data); when a key is pressed down for communication, the intelligent device determines the type of a replaced board through the frame header, the type number and the board type of the identification data; when the intelligent device identifies that the connection interface 2 is communicated with the main control board through the data, the intelligent device simulates a display board to send corresponding data to the main control board; similarly, the intelligent device can also identify the interface connected with the intelligent device through the data and serve as a main control board or a driving board.
When the smart device acts as a display panel: when the intelligent device serves as a display panel, the liquid crystal display screen of the intelligent device can be operated to simulate the display panel to send data to the main control panel, the main control panel is controlled to operate different loads and detect different sensors, the intelligent device can also set operation parameters (such as motor rotating speed, motor positive and negative rotation and the like) of the motor, and the set motor parameters are sent to the drive plate through the main control panel, so that the motor is driven to operate corresponding parameters; if some loads, sensors or motors of the whole machine have faults in the control process, the main control board sends corresponding fault information to the intelligent device, and the intelligent device displays corresponding faults and corresponding fault maintenance guidance according to data.
When the smart device acts as a master control board: when the intelligent device serves as the main control board, the main control board can be simulated to send data to the drive board or the load and the sensor through operating the liquid crystal display screen of the intelligent device, the operation of the intelligent device is controlled, whether the intelligent device operates normally or not is judged through the detected data, and when the intelligent device operates abnormally, the intelligent device displays corresponding faults and maintenance guidance.
As shown in fig. 4, when a communication fault is detected in the whole washing machine, the communication fault detection is started by controlling the duration of the key (any key is pressed for more than a first preset time, and other methods can be adopted to start the communication fault detection), and then the user can start the corresponding key 1,2 or 3, so as to judge the communication faults of the main control board interface, the display board interface, the main control board (or control board) and the motor control board (or motor drive board) interface, i.e. the interfaces 1,2,3 and 4 in fig. 1, in the washing machine.
As shown in fig. 4, when it is detected that the communication fault of the whole washing machine does not occur, the machine type of the washing machine and the matched communication protocol are automatically identified according to the communication protocol data, and then the intelligent device serves as a display panel or a main control panel to respectively detect the faults of the whole washing machine, the load, the motor, the temperature sensing bulb and other components.
And finally, displaying the corresponding fault by display equipment in the intelligent equipment, and providing maintenance guidance for maintenance personnel.
According to one or more embodiments of the present invention, the smart device of the present invention may be provided in a washing machine or may be provided outside the washing machine, and used as a separate device.
In accordance with one or more embodiments of the present invention, the control logic in the washing machine fault detection smart device of the present invention may implement the processing of the control scheme as described above using encoded instructions (e.g., computer and/or machine readable instructions) stored on a non-transitory computer and/or machine readable medium (e.g., hard drive, flash memory, read-only memory, optical disk, digital versatile disk, cache, random access memory, and/or any other storage device or storage disk) in which information is stored for any period of time (e.g., for extended periods of time, permanent, transient instances, temporary cache, and/or information cache). As used herein, the term "non-transitory computer-readable medium" is expressly defined to include any type of computer-readable storage device and/or storage disk and to exclude propagating signals and to exclude transmission media.
According to one or more embodiments of the present invention, the control circuit, (control logic, master control system, or control module) of the smart device of the present invention may comprise one or more processors and may also comprise a non-transitory computer readable medium therein. In particular, a microcontroller MCU may be included in the smart device (a main control system or a control module), which is disposed in the washing machine, for various operations of the washing machine fault detection method and implementing various functions. The processor for implementing the washing machine fault detection function of the present invention may be such as, but not limited to, one or more single-core or multi-core processors. The processor(s) may include any combination of general-purpose processors and special-purpose processors (e.g., graphics processors, application processors, etc.). The processor may be coupled thereto and/or may include a memory/storage device and may be configured to execute instructions stored in the memory/storage device to implement various applications and/or operating systems running on the controller in accordance with the present invention.
The drawings referred to above and the detailed description of the invention, which are exemplary of the invention, serve to explain the invention without limiting the meaning or scope of the invention as described in the claims. Accordingly, modifications may be readily made by those skilled in the art from the foregoing description. Further, those skilled in the art may delete some of the constituent elements described herein without deteriorating the performance, or may add other constituent elements to improve the performance. Further, the order of the steps of the methods described herein may be varied by one skilled in the art depending on the environment of the process or apparatus. Therefore, the scope of the present invention should be determined not by the embodiments described above but by the claims and their equivalents.
While the invention has been described in connection with what is presently considered to be practical embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (8)
1. An apparatus for detecting malfunction of a washing machine, comprising:
the communication circuit is used for carrying out data communication with a component to be detected in the washing machine through an interface and inputting the communicated data into the control circuit;
the starting detection circuit starts detection input according to the fault type to be detected and inputs the input fault type into the control circuit;
the control circuit detects that the communication circuit has data and the start detection circuit has input, carries out washing machine fault detection according to a preset communication protocol and control logic and outputs a fault detection result;
the starting detection circuit is a key detection circuit which comprises a plurality of starting detection keys, and when the starting detection keys are pressed down, the control circuit detects fault types corresponding to the keys;
wherein the control logic comprises:
after the device is connected to the washing machine through the communication circuit, when the starting detection key is pressed down, the control logic detects whether the whole washing machine has a communication fault;
when the communication fault of the whole washing machine is detected, when any starting detection key is pressed for more than a first preset time, the communication fault of the washing machine is detected, an interface for connecting the device and the washing machine is determined according to the fact that different keys of a starting detection circuit are pressed down, and the corresponding communication fault is detected;
when the communication fault of the whole washing machine is not detected, when any starting detection key is pressed for less than a first preset time, the non-communication fault detection of the washing machine is carried out, the machine type of the washing machine is automatically identified and the communication protocol is matched according to the communication data of the device and the part to be detected in the washing machine, and the communication data of the corresponding part in the washing machine is matched based on the corresponding part in the washing machine replaced by the device so as to execute the fault detection of the corresponding part in the washing machine.
2. The device of claim 1, wherein the communication circuit enables the device to replace one or more components in a washing machine to communicate with other components in the washing machine.
3. The apparatus of claim 1, wherein the fault types include a communication fault type and a non-communication fault type.
4. The apparatus of claim 1, wherein the control circuit detects the communication circuit and the start detection circuit in a round-robin manner.
5. The apparatus of claim 1, wherein the predetermined communication protocol includes a definition of a communication data packet between the laundry parts, the communication data packet at least comprising: the head code of communication, the type of the washing machine, the serial number of relevant parts of the washing machine and the reserved data.
6. The apparatus of claim 1, wherein the parts to be inspected in the washing machine comprise: one or more of a main control board, a display board, a motor control board and a temperature sensing bulb.
7. The apparatus of claim 1, wherein the fault types include one or more of a display-type fault, a load-type fault, a motor drive-type fault, and a communication-type fault of a washing machine.
8. The apparatus as claimed in claim 1, further comprising a display device for displaying a corresponding malfunction on the display device and providing guidance to a service person when a malfunction of the washing machine is detected.
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| CN202011475605.8A CN112680925B (en) | 2020-12-15 | 2020-12-15 | Device for detecting failure of washing machine |
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| CN202011475605.8A CN112680925B (en) | 2020-12-15 | 2020-12-15 | Device for detecting failure of washing machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442545A (en) * | 2002-03-05 | 2003-09-17 | 乐金电子(天津)电器有限公司 | Fault diagnosis device and method of washing machine |
| JP2014030574A (en) * | 2012-08-03 | 2014-02-20 | Panasonic Corp | Service management system for washing machine |
| CN105866663A (en) * | 2016-06-03 | 2016-08-17 | 珠海格力电器股份有限公司 | Test tooling and test system |
| CN107805910A (en) * | 2016-09-08 | 2018-03-16 | 博西华电器（江苏）有限公司 | Laundry machine |
| CN213364959U (en) * | 2020-08-11 | 2021-06-04 | 无锡小天鹅电器有限公司 | Washing machine detector |
-
2020
- 2020-12-15 CN CN202011475605.8A patent/CN112680925B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442545A (en) * | 2002-03-05 | 2003-09-17 | 乐金电子(天津)电器有限公司 | Fault diagnosis device and method of washing machine |
| JP2014030574A (en) * | 2012-08-03 | 2014-02-20 | Panasonic Corp | Service management system for washing machine |
| CN105866663A (en) * | 2016-06-03 | 2016-08-17 | 珠海格力电器股份有限公司 | Test tooling and test system |
| CN107805910A (en) * | 2016-09-08 | 2018-03-16 | 博西华电器（江苏）有限公司 | Laundry machine |
| CN213364959U (en) * | 2020-08-11 | 2021-06-04 | 无锡小天鹅电器有限公司 | Washing machine detector |
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