CN112924781B - Intelligent detection equipment of refrigerator - Google Patents

Abstract

The invention provides an intelligent detection device for a refrigerator, which includes: a casing, on which a power access port for connecting an external power supply is provided, and the power access port has a power ground terminal for connecting a power ground wire; a plurality of magnetic The electrodes are arranged at intervals on the surface of the casing, and are used to attach to the exposed metal area on the outer surface of the refrigerator to be detected by magnetic force, and each magnetic electrode is connected to the power ground terminal through an independent electrode ground wire. In the solution of the present invention, on the one hand, the magnetic electrodes provide the intelligent detection equipment with a fixing method with the detected refrigerator, and on the other hand, provide reliable grounding protection, avoiding the risk of electric shock caused by poor grounding. The whole detection process is carried out automatically, with accurate detection and high efficiency, especially suitable for automatic detection of smart home appliances such as smart refrigerators.

Description

Intelligent detection equipment for refrigerators

technical field

The invention relates to smart home appliances, in particular to a smart detection device for a refrigerator.

Background technique

The functions of existing refrigerators are increasingly rich, and its internal structure is more complicated, and the difficulty of after-sales maintenance is greatly increased. However, at present, the after-sales inspection of various new refrigerators still mainly relies on traditional methods, such as multimeters to detect various electrical signals, after-sales personnel to rely on personal experience to make judgments, and disassemble and replace parts to determine the type of failure, etc. This traditional after-sales detection method has low detection efficiency and high probability of misjudgment and misjudgment, and cannot meet the requirements of actual after-sales service.

Although some detection tools for specific models and specific components have also appeared in the prior art, on the one hand, they have poor versatility, and on the other hand, the methods of use are relatively complicated. In addition, refrigerator testing involves the use and connection of strong electricity, and there are hidden dangers in its safety. During actual after-sales maintenance work, accidents such as short circuits, damaged parts, and even electric shocks to after-sales service personnel may occur.

Therefore, there is a lack of testing equipment with good safety and meeting the needs of refrigerator after-sales testing services in the prior art.

Contents of the invention

An object of the present invention is to provide an intelligent detection device for a refrigerator with better safety.

A further object of the present invention is to improve the ease of use and versatility of the testing device.

In particular, the present invention provides an intelligent detection device for a refrigerator, which includes:

The casing is provided with a power access port for connecting to an external power supply, and the power access port has a power ground terminal for connecting to a power ground wire;

A plurality of magnetic electrodes are arranged at intervals on the surface of the shell, and are used to attach to the exposed metal area on the outer surface of the refrigerator to be detected by magnetic force, and each magnetic electrode is connected to the power ground terminal through an independent electrode ground wire.

Optionally, the housing is in the shape of a square box; and a plurality of magnetic electrodes are arranged in an array on the same side of the housing.

Optionally, the above-mentioned intelligent detection device for the refrigerator also includes a power connection wire set, wherein a power output port for connecting the power connector of the detected refrigerator is also provided on the casing, and the power output port has a refrigerator for connecting the ground wire of the detected refrigerator. Ground terminal; the power connection line set is connected between the power input port and the power output port, so as to transfer the electric energy from the external power supply to the power output port, and the power connection line set has a ground connection line, and the ground connection line is connected to the between the power supply ground terminal and the refrigerator ground terminal; and the electrode ground wires corresponding to the plurality of magnetic electrodes are respectively connected to the ground connecting wires to realize connection with the power supply ground terminal and the refrigerator ground terminal.

Optionally, the electrode ground wires corresponding to the plurality of magnetic electrodes are respectively connected to different sections of the ground connection wires.

Optionally, the above-mentioned intelligent detection device for the refrigerator further includes: a measuring component, arranged in the casing, connected to the power connection line group, and configured to detect the current value and/or voltage value supplied to the detected refrigerator by the power connection line group; The data processing module is arranged in the casing and is configured to determine the operating state of the detected refrigerator according to the current value and/or voltage value.

Optionally, the above-mentioned intelligent detection device for the refrigerator also includes: a command communication port, which is arranged on the shell, and is configured to connect to the preset test port on the main control board of the detected refrigerator through a communication line; The communication port is connected and configured to send a test command sequence to the test port. The test command sequence includes one or more test commands configured in a set order, and each test command is used to make the main control board download to one or more execution components. Send the corresponding action instruction; and in the process of sending the test instruction sequence to the test port, determine the action execution result of the execution component according to the current value and/or voltage value.

Optionally, the above-mentioned smart detection device for the refrigerator further includes: a data transmission module, connected to the data processing module, and configured to establish a data connection with an external detection terminal, obtain the test instruction sequence provided by the detection terminal, and send the action execution result Send to the detection terminal; wherein the test instruction sequence is formulated by the detection terminal according to the electrical detection model of the refrigerator to be detected.

Optionally, the data processing module is further configured to output a prompt message indicating that the execution component corresponding to the test instruction is faulty when the execution result of the action corresponding to any test instruction does not match the expected result.

Optionally, the above-mentioned smart detection device for the refrigerator further includes: a display device, disposed at the display opening of the housing, connected to the data processing module, and configured to display the operating status of the detection device.

Optionally, the intelligent detection device of the above-mentioned refrigerator also includes: a sheath, which is sheathed on the outside of the casing, and an opening is provided at a position opposite to the plurality of magnetic electrodes in the sheath for the magnetic electrodes to pass through, and the plurality of magnetic electrodes The electrodes are also arranged to protrude from the outer surface of the sheath.

In the intelligent detection device of the refrigerator of the present invention, a plurality of magnetic electrodes are arranged on the casing, and the magnetic force of these magnetic electrodes is used to attach to the exposed metal area (such as the back panel of the refrigerator) on the outer surface of the refrigerator to be detected, and each The magnetic electrodes are grounded through a separate electrode ground wire. On the one hand, the magnetic electrodes provide the smart detection equipment with a fixed way to the refrigerator to be detected, and on the other hand, they provide reliable grounding protection, avoiding the risk of electric shock caused by poor grounding. The intelligent detection equipment is attached to the refrigerator by magnetic force, which also shows the reliable connection between the magnetic electrode and the refrigerator, and the grounding status can be seen directly, which greatly improves the reliability.

Furthermore, in the intelligent detection device for refrigerators of the present invention, multiple magnetic electrodes are independently connected to electrode grounding wires, and as long as any magnetic electrode is grounded, grounding protection can be realized. By optimizing the arrangement of the magnetic electrodes, the grounding reliability is improved. When adsorbed on the metal shell of the smart refrigerator, the grounding of the intelligent detection equipment is connected to the grounding of the refrigerator, thus avoiding the poor contact of the power grounding end of the smart refrigerator, the poor contacting of the refrigerator grounding end, or the breakage of the power grounding wire, etc. A ground fault caused by an accident.

Furthermore, the intelligent detection equipment of the refrigerator of the present invention improves the detection components and the detection process, the command communication port sends the test command sequence to the preset test port on the main control board, and the measurement component responds to the test command sequence process of the refrigerator The current value and/or voltage value in the refrigerator is measured, and the data processing module determines the operating state of the detected refrigerator according to the current value and/or voltage value. The entire detection process is carried out automatically, and whether the function of the corresponding executive component is determined through the change of the electrical signal corresponding to the action of the refrigerator in response to the test command sequence, the detection is accurate and the efficiency is high.

Furthermore, for the intelligent detection equipment of the refrigerator of the present invention, the test instruction is obtained by the test terminal (such as a mobile phone, a mobile terminal, a tablet, etc.) The test instruction matching the tested refrigerator is obtained, thereby meeting the testing needs of refrigerators of different models and different functions, greatly improving the versatility, and improving the work efficiency of after-sales personnel.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic diagram of an angle of an intelligent detection device of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of another angle of an intelligent detection device of a refrigerator according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of cooperation between an intelligent detection device of a refrigerator and the refrigerator according to an embodiment of the present invention;

Fig. 4 is an electrical connection schematic diagram of an intelligent detection device of a refrigerator according to an embodiment of the present invention;

Fig. 5 is a system schematic diagram of an intelligent detection device of a refrigerator in a detection state according to an embodiment of the present invention; and

Fig. 6 is a schematic diagram of the electrical connection of the intelligent detection device of the refrigerator in the detection state according to an embodiment of the present invention.

Detailed ways

1 and 2 are schematic diagrams of an angle of an intelligent detection device 10 for a refrigerator according to an embodiment of the present invention. 1 mainly shows the appearance of the side of the smart detection device 10 facing away from the detected refrigerator 20 , and FIG. 2 mainly shows the appearance of the side of the smart detection device 10 facing the detected refrigerator 20 . Fig. 3 is a schematic diagram of cooperation between the intelligent detection device 10 of the refrigerator and the refrigerator 20 according to an embodiment of the present invention.

The intelligent detection device 10 for a refrigerator in this embodiment may generally include: a casing 150 , a plurality of magnetic electrodes 131 , a sheath 151 and the like. A power input port 110 , a command communication port 143 , a power output port 120 , a display device 145 and the like can be set on the casing 150 . The power access port 110 is used to connect the external power supply 30 (for example, it can be a grid power supply), and a power connector form compatible with the power supply 30 can be selected, such as a three-core power plug, to cooperate with a three-core connecting line, and finally connected to the The live wire L, the neutral wire N, and the ground wire GND of the power supply 30 . The power access port 110 has at least a power ground terminal 111 for connecting a power ground wire. When a three-core power plug is used, the power ground terminal 111 is the wire core located in the center.

A plurality of magnetic electrodes 131 are arranged at intervals on the surface of the casing 150, and are used to be attached to the exposed metal area on the outer surface of the refrigerator 20 by magnetic force, and each magnetic electrode 131 is connected to the power supply through an independent electrode ground wire. Ground connection.

The magnetic force of the magnetic electrode 131 needs to meet the requirements of attaching the smart detection device 10 to the exposed metal area on the outer surface of the refrigerator 20 to be detected. Generally speaking, the back plate of the refrigerator shell is a metal plate, and the refrigerator shell itself needs to be grounded reliably. Reliable connection.

The casing 150 of the intelligent detection device 10 is in the shape of a square box or other portable shapes. The shapes shown in the figure are only examples, and the corresponding shape of the casing 150 can be selected according to specific usage requirements.

The intelligent detection device 10 of the refrigerator in this embodiment may further be provided with a sheath 151 . The sheath 151 is sleeved on the outside of the casing 150, and an opening is provided at the position where the sheath 151 is opposite to the plurality of magnetic electrodes 131, so that the magnetic electrodes 131 can pass through, and the plurality of magnetic electrodes 131 are also arranged to protrude from the sheath. The outer surface of the sleeve 151 . The sheath 151 can prevent the shell 150 from being knocked against on the one hand, and on the other hand can be convenient to hold. A plurality of magnetic electrodes 131 protrude from the outer surface of the sheath 151 to facilitate attachment to the refrigerator 20 to be detected.

Fig. 4 is a schematic diagram of the electrical connection of the intelligent detection device 10 of the refrigerator according to an embodiment of the present invention. The smart detection device 10 also includes a power connection line set 130 . The intelligent detection device 10 is also provided with a power output port 120 on the casing 150 for connecting the refrigerator power connector 210 of the refrigerator 20 to be detected. The power output port 120 has a refrigerator ground terminal 121 for connecting the ground wire of the refrigerator to be detected. The power output port 120 is generally compatible with the power connector 210 of the detected refrigerator 20 , such as a three-pin socket, wherein the refrigerator ground terminal 121 is used to connect to the ground terminal of the power connector 210 .

The power connection line set 130 is connected between the power input port 110 and the power output port 120, so as to transmit the electric energy from the external power supply 30 to the power output port 120, and the power connection line set 130 has a ground connection line, and the ground connection The wire is connected between the power ground terminal and the refrigerator ground terminal 121. One end of the power connection line set 130 is connected to the power supply through the power input port 110, for example, it can be connected to the fire wire L, the neutral line N, and the ground wire GND of the power supply 30 respectively; Detect the power connector 210 of the refrigerator 20 .

The electrode ground wires corresponding to the plurality of magnetic electrodes 131 are respectively connected to the ground connection wires, so as to realize connection with the power supply ground terminal and the refrigerator ground terminal 121 . In some embodiments, the electrode grounding wires corresponding to a plurality of magnetic electrodes 131 can be respectively connected to different sections of the grounding connection wires, and through the respective grounding connections, it can be ensured that when a certain magnetic electrode 131 or electrode grounding wire fails unexpectedly, other The magnetic electrode 131 still ensures a reliable ground connection. Since the magnetic electrodes 131 are attached to the exposed metal area on the outer surface of the box, and the box itself is grounded, grounding protection can be realized as long as any magnetic electrode 131 is grounded through the above structure. By optimizing the arrangement of the magnetic electrodes 131, the grounding reliability is improved. After being adsorbed on the metal shell of the refrigerator 20 to be detected, the grounding of the intelligent detection device 10 is connected to the grounding of the refrigerator 20, thereby avoiding poor contact of the power supply ground terminal of the intelligent refrigerator 20, or poor contact of the refrigerator ground terminal 121, or power supply failure. Ground faults caused by various accidents such as broken ground wires. Therefore, the intelligent detection device 10 of this embodiment can reliably ensure that the power source 30 , the intelligent detection device 10 , and the detected refrigerator 20 share the same ground through the magnetic electrodes 131 .

On the one hand, the magnetic electrodes 131 provide the smart detection device 10 with a fixing method with the detected refrigerator 20 , and on the other hand, provide reliable grounding protection, avoiding the risk of electric shock caused by poor grounding. The intelligent detection device 10 is attached to the refrigerator 20 by magnetic force, which also shows the reliable connection between the magnetic electrode 131 and the refrigerator 20, and the grounding can be seen intuitively, which greatly improves the reliability. That is, the magnetic force can ensure that the intelligent detection device 10 is attached to the refrigerator 20 , and also can ensure the reliable connection between the magnetic electrode 131 and the outer shell of the refrigerator 20 .

Fig. 5 is a system schematic diagram of the intelligent detection device 10 of the refrigerator according to one embodiment of the present invention in the detection state, and Fig. 6 is the electrical connection principle of the intelligent detection device 10 of the refrigerator according to one embodiment of the present invention in the detection state picture. The intelligent detection device 10 of the refrigerator may be further provided with a measurement component 141, a data processing module 142, a command communication port 143, a data transmission module 144, a display device 145, and the like. The above detection components can be configured as required.

The measuring component 141 is disposed in the housing 150 , connected to the power connection line set 130 , and configured to detect the current value and/or voltage value supplied to the detected refrigerator 20 by the power connection line set 130 . The measurement component 141 may include a current detection element and a voltage detection element, and a power value may be further calculated through the detected current value and voltage value. The above-mentioned current value, voltage value, and power value reflect the operating state of the detected refrigerator 20 . Since different execution components of the detected refrigerator 20 have differences in the use of electric energy when performing their respective functions, this is directly reflected in the current value, voltage value, and corresponding power value.

The data processing module 142 is disposed in the housing 150 and may be configured to determine the operating state of the detected refrigerator 20 according to the current value and/or the voltage value. The data processing module 142 can perform various analysis operations on the current value and/or voltage value, such as calculating power value, analyzing current (such as amplitude, frequency, change trend), analyzing voltage (such as amplitude, frequency, change trend), etc. . Since the analysis and calculation of various power signals are well known to those skilled in the art, details will not be described here.

In order to comprehensively analyze whether various functions of the refrigerator 20 to be tested are normal, the command communication port 143 of the intelligent detection device 10 can be configured to connect to the preset test port 221 on the main control board 220 of the refrigerator 20 to be tested through a communication line. The data processing module 142 is also connected with the instruction communication port 143, and is configured to send a test instruction sequence to the test port 221. The test instruction sequence includes one or more test instructions configured in a set order, and each test instruction is used to make the main control The board 220 issues corresponding action instructions to one or more execution components; and in the process of sending the test instruction sequence to the test port 221, determines the action execution result of the execution components according to the current value and/or voltage value. Executing components may include various load components of the detected refrigerator 20, such as refrigeration systems (compressors, etc.), fans, defrosting heating wires, vertical beam heating wires, lights, and other auxiliary functional components (display screens, photographing devices, sensing devices, etc.) , fresh-keeping device) and so on. Refrigerators 20 of different models and specifications may be configured with different execution components.

That is to say, the intelligent detection device 10 sends one or more test instructions to the refrigerator 20 to be tested, and each test instruction can make the main control board 220 of the refrigerator 20 control one or more execution components to complete or change the operating state. Due to the actions of different execution components, the current, voltage, power, etc. of the detected refrigerator 20 will change accordingly, then the data processing module 142 can determine the execution Whether the action execution result of the component is correct.

For example, the test command can turn on the defrosting heating wire, each room lighting, each air blower, compressor and other components in turn, and at the same time use the main control board 220 to send action commands, and can also judge whether the function of the main control board 220 is correct. The test instructions may be preconfigured according to the functions of the refrigerator 20 to be tested. The command communication port 143 can communicate with the refrigerator main control board 220 through various communication methods, such as serial communication, parallel communication or other communication bus methods.

Considering that there are large differences in the functions and configurations of the refrigerators 20 to be tested, the intelligent testing device 10 of this embodiment can also automatically configure test instructions according to the model of the refrigerator 20 to be tested by means of big data technology. For example, the data transmission module 144 is connected with the data processing module 142 and is configured to establish a data connection with the external detection terminal 40 , obtain the test instruction sequence provided by the detection terminal 40 , and send the action execution result to the detection terminal 40 .

The detection terminal 40 may be a mobile phone, a tablet computer, or a dedicated terminal and other portable terminals with a network connection function. During detection, the detection terminal 40 determines the model specification of the refrigerator 20 to be detected, and searches for the electrical detection model of the refrigerator 20 to be detected from the management server connected to the refrigerator through the network. The electrical inspection model can be formulated in advance during the production inspection stage of the refrigerator 20 to be inspected, for example, as the basis for the factory inspection of the refrigerator 20 to be inspected. The electric detection model may include the types and specifications of the executive components of the refrigerator configuration (such as the number of compartments, the number of evaporators, the number of fans, the number and configuration status of lighting lamps, the specifications of defrosting heating wires, the configuration status of fresh-keeping auxiliary equipment, vertical beam heating Wire specifications, configurations and specifications of various smart devices) and the respective reasonable ranges of current, voltage, and power of each of the above-mentioned executive components after they are turned on. For example, the detection terminal 40 can automatically determine the model specification of the detected refrigerator 20 by scanning the code of the detected refrigerator 20, image recognition, etc., and further obtain the electrical detection model, corresponding test instructions and judgment threshold range.

The detection terminal 40 can realize the detection function by installing an App (application program) for refrigerator detection, and can be connected with the intelligent detection device 10 through various wireless or wired communication methods, for example, can communicate with the intelligent detection device 10 through Bluetooth.

The detection terminal 40 provides test instructions and corresponding judgment threshold ranges (reasonable ranges of voltage values, reasonable ranges of current values, reasonable ranges of power values, changing speeds of various electrical signals, etc.) to the intelligent detection device 10 through the data transmission module 144, data The processing module 142 can detect the state of the refrigerator 20 to be detected according to the test instruction provided by the detection terminal 40 and the judgment threshold range. If the detected refrigerator 20 executes the action corresponding to the test instruction, and the detection result of the measurement component 141 is within a corresponding reasonable range, the data processing module 142 can judge that the execution component corresponding to the test instruction is operating normally; otherwise, the data processing module 142 can judge The execution unit corresponding to the test instruction runs abnormally. In specific judgment, the data processing module 142 may perform multiple detections on one execution component, so as to avoid the deviation of a single detection.

The data transmission module 144 may also be configured to provide the action execution result to the detection terminal 40 for output by the detection terminal 40 . For example, the detection terminal 40 may display each execution component of the detected refrigerator 20 and its detection results on its own screen. The detection terminal 40 can also obtain the selection operation of the after-sales maintenance personnel on its own screen, generate a test instruction according to the selected execution component, and display the detection result according to the action execution result provided by the data transmission module 144 . In some other embodiments, the detection terminal 40 can also upload the detection results to the network server, and the network server can be used to record the detection results of the detected refrigerator 20 and provide maintenance suggestions and accessories order suggestions when a fault occurs.

In the case that the action execution result corresponding to any test instruction does not match the expected result, the data processing module 142 may output a prompt message indicating that the execution component corresponding to the test instruction is faulty. The prompt information can be output through the detection terminal 40 so as to report to after-sales maintenance personnel.

The display device 145 is disposed at the display opening of the casing 150 , connected to the data processing module 142 , and configured to display the operating status of the detection device 10 . For example, before the detection, the display device 145 can be used to display the connection status of the intelligent detection device 10 and the detection terminal 40 (for example, connected with the terminal App, or to be connected to the detection terminal, etc.); during the detection process, the display device 145 can be used for Display the items currently being detected (such as the basic function detection of the main control board 220, light detection, air supply detection, defrosting detection, etc.), after the detection is completed, the display device 145 can be used to display the detection results (such as overall normal, certain parts exception, etc.).

In some embodiments, the smart detection device 10 is in the shape of a flat box as a whole, where a plurality of magnetic electrodes 131 are arranged on the back for adsorption to the refrigerator 20 , and a power inlet port 110 for connecting the power supply 30 is provided on the top or bottom. For ease of operation, a power output port 120 connected to the refrigerator 20 , a display device 145 , and a command communication port 143 can be arranged on the front. In addition, the intelligent detection device 10 can also be provided with buttons or other input devices as required to realize local operation devices such as switches and resets.

Since the intelligent detection device 10 of this embodiment has a reliable ground connection, after-sales maintenance personnel can safely perform various operations, ensuring the safety of the connection and testing process, and providing a safety guarantee for efficient and accurate detection.

In addition, the entire detection process of the intelligent detection device 10 of the refrigerator in this embodiment is automatically performed, and whether the function of the corresponding executive component is determined through the change of the electrical signal corresponding to the action of the refrigerator in response to the test command sequence, the detection is accurate, and the efficiency is high. The test instruction is obtained by the detection terminal 40 (such as a mobile phone, a mobile terminal, a tablet, etc.) according to the electrical detection model of the detected refrigerator 20, and the data transmission module 144 of the intelligent detection device 10 obtains the information that matches the detected refrigerator 20 from the test terminal. Test instructions, thereby meeting the detection needs of refrigerators 20 of different models and different functions, greatly improving the versatility, and improving the work efficiency of after-sales personnel.

The process of using the intelligent detection device 10 of the refrigerator in this embodiment may specifically include: the after-sales service personnel are commissioned to detect the refrigerator 20 to be detected. First, the after-sales service personnel cut off the power to the refrigerator 20 , and dismantle the baffle of the refrigerator 20 to expose the test port 221 on the main control board 200 . The intelligent detection device 10 is connected with the tested refrigerator 20 by cable, the power plug of the refrigerator 20 is inserted into the power output port 120, the power input port 110 is connected to the power supply 30, and the command communication port 143 is connected to the test port 221 through a communication cable. After the smart detection device 10 is powered on, first keep the refrigerator 20 powered off, and prompt to connect the detection terminal 40 . The detection terminal 40 opens the detection APP (the corresponding APP can be developed according to the system of the detection terminal 40), and establishes a data connection with the intelligent detection device 10 through Bluetooth or other wireless communication methods.

After the detection terminal 40 is connected to the data of the intelligent detection device 10, the model of the detected refrigerator 20 is obtained by scanning codes or other identification methods, and the information (such as number, model, specification, configuration, usage, etc.) of the detected refrigerator 20 is provided to the network server at the same time. operator information, etc.), obtain the electrical detection model of the refrigerator 20 to be detected (including the test instructions and the corresponding judgment basis), and the detection terminal 40 forms a detection scheme.

The detection scheme may be used for comprehensive detection of the refrigerator 20 to be detected or detection of some execution components. The detection terminal 40 provides test instructions to the intelligent detection device 10 through encrypted communication. The intelligent detection device 10 verifies the detection terminal 40, and after confirming that the detection terminal 40 has passed the verification (that is, has the detection authority), decrypts the encrypted data to obtain a test instruction. The intelligent detection device 10 energizes the detected refrigerator 20 to make it enter the detection state, and maintain all the executing components in the standby state.

After the intelligent detection device 10 determines that the electrical signal parameters of the detected refrigerator 20 to enter the detection state are normal, and can obtain the correct feedback from the main control board 220, it sends test instructions according to the order of the detection scheme, so that the main control board 220 sends a test instruction to one or more An execution unit sends an action command.

Refrigerator 20 receives the test command, shuts down all other loads (executive components not tested), and activates or changes the running state of the execution component corresponding to the action command. During the action of the executing part, the measurement component 141 continuously collects the power supply signal of the detected refrigerator 20, and the sampled values are filtered and calculated to obtain some or all of the current value, voltage value, power value and other electrical signals. The measured electrical signal parameters and the corresponding judgment basis are judged. If the detection result is within the corresponding reasonable range, the data processing module 142 can judge that the execution component corresponding to the test instruction is operating normally; otherwise, the data processing module 142 can judge that the test The execution unit corresponding to the instruction is running abnormally.

The intelligent detection device 10 provides the action execution result to the detection terminal 40 for output. The detection terminal 40 can output the detection result on the interface of the detection APP. For example, the execution components that run normally are marked in green; the execution components that run abnormally are marked in red. After-sales maintenance personnel can operate on the interface and instruct to retest the abnormal execution parts separately to improve the detection accuracy.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (9)

1. An intelligent detection device for a refrigerator, comprising: The shell is provided with a power access port for connecting to an external power supply, and the power access port has a power ground terminal for connecting to a power ground wire; A plurality of magnetic electrodes, arranged at intervals on the surface of the casing, are used to attach to the exposed metal area on the outer surface of the refrigerator to be tested by magnetic force, and each of the magnetic electrodes is connected to the outer surface of the refrigerator through an independent electrode ground wire. The above power ground connection; The intelligent detection equipment also includes a power connection line set, wherein The shell is also provided with a power output port for connecting the refrigerator power connector of the detected refrigerator, and the power output port has a refrigerator ground terminal for connecting the ground wire of the detected refrigerator; The power connection line set is connected between the power input port and the power output port, so as to transmit the electric energy from the external power supply to the power output port, and the power connection line set has a ground connection wire, the ground connection wire is connected between the power ground terminal and the refrigerator ground terminal; and The electrode ground wires corresponding to the plurality of magnetic electrodes are respectively connected to the ground connection wires, so as to be connected to the power supply ground terminal and the refrigerator ground terminal. 2. The intelligent detection device of the refrigerator according to claim 1, wherein The housing is in the shape of a square box; and the plurality of magnetic electrodes are arranged in an array on the same side of the housing. 3. The intelligent detection device of the refrigerator according to claim 1, wherein The electrode ground wires corresponding to the plurality of magnetic electrodes are respectively connected to different sections of the ground connection wires. 4. The intelligent detection device of the refrigerator according to claim 1, further comprising: A measuring component, arranged in the housing, connected to the power connection line set, and configured to detect the current value and/or voltage value supplied to the detected refrigerator by the power supply connection line set; The data processing module is arranged in the housing and is configured to determine the operating state of the detected refrigerator according to the current value and/or the voltage value. 5. The intelligent detection device of the refrigerator according to claim 4, further comprising: The command communication port is set on the shell and is configured to connect to the preset test port on the main control board of the refrigerator to be tested through a communication line; The data processing module is also connected to the instruction communication port, and is configured to send a test instruction sequence to the test port, the test instruction sequence includes one or more test instructions configured in a set order, and each The test command is used to make the main control board issue corresponding action commands to one or more execution components; and in the process of sending the test command sequence to the test port, according to the current value and/or the The voltage value determines the action execution result of the executing component. 6. The intelligent detection device of the refrigerator according to claim 5, further comprising: The data transmission module is connected to the data processing module, and is configured to establish a data connection with an external detection terminal, obtain the test instruction sequence provided by the detection terminal, and send the action execution result to the detection terminal. terminal; wherein the test instruction sequence is formulated by the detection terminal according to the electricity detection model of the refrigerator to be detected. 7. The intelligent detection device of the refrigerator according to claim 5, wherein The data processing module is further configured to output a prompt message indicating that the execution component corresponding to the test instruction is faulty when the execution result of the action corresponding to any of the test instructions does not match the expected result. 8. The intelligent detection device of the refrigerator according to claim 4, further comprising: The display device is arranged at the display opening of the housing, is connected with the data processing module, and is configured to display the operating status of the detection device. 9. The intelligent detection device of the refrigerator according to claim 1, further comprising: The sheath is set on the outer side of the shell, and the sheath is provided with an opening at a position opposite to the plurality of magnetic electrodes, so that the magnetic electrodes can pass through, and the plurality of magnetic electrodes are also provided with protruding from the outer surface of the sheath.

Images