A method and a detection system for detecting the operation reliability of a variable-frequency range hood

Abstract

The present invention discloses a method and a detection system for detecting the operation reliability of a variable-frequency range hood, which are applied to at least one of the following operation stages of the range hood: standby stage, light-on stage, and high-air-volume stage. The method includes: obtaining the operation power of the range hood in real time; if the operation power is not within the preset power range, it is determined that the range hood is operating incorrectly, and the incorrect operation count is incremented by 1, where the initial value of the incorrect operation count is 0; recording the total operation count and the incorrect operation count of each operation stage, where the preset power ranges of each operation stage are different. By obtaining the operation power of the variable-frequency range hood in real time, the operation status of the range hood can be monitored in real time, more objectively and accurately reflecting the operation situation of the range hood. The detection method of determining whether the operation power is within the preset power range more objectively reflects the working state of the range hood. By recording the total operation count and the incorrect operation count of each operation stage of the range hood, the operation reliability of the range hood can be reflected to a certain extent.

Description

Technical Field

[0001] The present invention relates to the field of range hood detection, and in particular to a method and a system for detecting the operation reliability of a variable-frequency range hood. Background Art

[0002] The existing method for detecting the reliability of a variable-frequency range hood is as follows: after a certain function of the range hood is turned on and it runs for a long time, after a period of time, an inspector checks whether the range hood has obvious failures, for example, whether the range hood stops operating, etc. There is no real-time monitoring of the working state of the range hood, and the real-time power of the range hood during operation cannot be obtained, resulting in inaccurate detection results of the range hood reliability. The detection is carried out by manual observation, and the detection results have a large randomness, which has no guiding significance for the subsequent optimization of the range hood performance. Moreover, the reliability detection of each function of the range hood is carried out after the range hood runs for a predetermined period of time, and then an inspector checks the detected range hood, wasting a lot of manpower. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a method and a system for detecting the operation reliability of a variable-frequency range hood, which can monitor the operation state of the range hood in real time and accurately know the reliable degree of the range hood during operation.

[0004] To achieve the above purpose, the technical solution of the present invention is as follows:

[0005] A method for detecting the operation reliability of a variable-frequency range hood, which is applied to at least one of the following operation stages of the range hood: standby stage, light-on stage, and high-air-volume stage. The method includes:

[0006] Obtain the operating power of the range hood in real time;

[0007] If the operating power is not within the preset power range, it is determined that the range hood is operating incorrectly, and the number of incorrect operations is incremented by 1, where the initial value of the number of incorrect operations is 0;

[0008] Record the total number of operations and the number of incorrect operations in each operation stage, where the preset power ranges in each operation stage are different.

[0009] Further, the method further includes: setting preset parameters, where the preset parameters include the preset power range and the operation time in each operation stage.

[0010] Further, the method further includes: displaying the operation parameters in real time, where the operation parameters include the operating power, the total number of operations in each operation stage, and the number of incorrect operations.

[0011] Further, before setting the preset parameters, the method further includes: initializing the preset parameters and the operating parameters, where initializing the preset parameters means setting all the preset parameters to 0, or setting the preset parameters to fixed values respectively; initializing the operating parameters means setting all the operating parameters to 0.

[0012] Further, the method further includes: starting the range hood before the operating power of the range hood is acquired in real time or after the range hood is turned off; turning off the range hood or switching the range hood to another operating stage after a certain operating stage ends.

[0013] The present invention also provides a detection system for the operating reliability of a variable-frequency range hood, and its technical solution is as follows:

[0014] A detection system for the operating reliability of a variable-frequency range hood is used to detect at least one of the following operating stages of the range hood: standby stage, light-on stage, and high-airflow stage; the detection system includes a control board and a power meter, the power meter is used to acquire the operating power of the range hood in real time and transmit the operating power to the control board; the control board is used to record the total number of operating times and the number of incorrect operating times in each operating stage, the incorrect operation refers to the operating power not being within the preset power range, the control board is used to determine whether the range hood is in the incorrect operation, when the range hood is in the incorrect operation, the control board is further used to increment the number of incorrect operating times by 1, where the initial number of incorrect operating times is 0, and the preset power ranges in each operating stage are different.

[0015] Further, the detection system further includes a keypad for inputting preset parameters to the control board, and the preset parameters include the preset power range and the operating time in each operating stage.

[0016] Further, the detection system further includes a display screen controlled by the control board. When the preset parameters are set, the display screen is used to display the preset parameters. When the range hood is operating, the display screen is used to display the operating parameters in real time, where the operating parameters include the real-time operating power, the total number of operating times in each operating stage, and the number of incorrect operating times.

[0017] Further, the control board is further used to initialize the preset parameters and the operating parameters before setting the preset parameters, where initializing the preset parameters means setting all the preset parameters to 0, or setting the preset parameters to fixed values respectively; initializing the operating parameters means setting all the operating parameters to 0.

[0018] Further, the detection system further includes more than two electromagnetic moving irons controlled by the control board, wherein some of the electromagnetic moving irons are used to control the startup and shutdown of the range hood, and some are used to control the switching of different operation stages of the range hood.

[0019] Further, the detection system further includes a fixed bracket installed in front of the range hood buttons. The range hood buttons include: a startup / shutdown button, a lighting button, and a high-air-volume button; the electromagnetic moving irons are installed on the fixed bracket and correspond to the positions of the corresponding range hood buttons.

[0020] Further, the fixed bracket includes an upper rod and a lower rod arranged parallel to each other up and down. The two ends of the upper rod and the lower rod are connected by vertical rods. Near one end of the vertical rod, the upper rod is provided with an opening; the upper and lower ends of the electromagnetic moving iron are provided with an upper sliding groove and a lower sliding groove that match the widths of the upper rod and the lower rod, and the electromagnetic moving iron is slidably installed between the upper rod and the lower rod through the opening.

[0021] Further, the width of the opening is equal to the width of the electromagnetic moving iron.

[0022] Further, the upper rod and the lower rod have the same width.

[0023] Further, a movable structure that can pop out is provided on the electromagnetic moving iron, and the corresponding range hood button is controlled by manipulating the movable structure.

[0024] The method for detecting the operation reliability of the variable-frequency range hood of the present invention can monitor the operation status of the range hood in real time by obtaining the operation power of the variable-frequency range hood in real time. Compared with only observing the operation status of the range hood by personnel, obtaining the operation power of the range hood in real time can more objectively and accurately reflect the operation situation of the range hood. The detection method of judging whether the operation power is within the preset power range can more objectively reflect the working state of the range hood. By recording the total number of operations and the number of incorrect operations in each operation stage of the range hood, the operation reliability of the range hood can be reflected to a certain extent.

[0025] The detection system for the operation reliability of the variable-frequency range hood of the present invention feeds the power of the range hood operation back to the control board in real time through a power meter. The control board determines whether the range hood is operating incorrectly and records the number of incorrect operations of the range hood. There is no need for manual observation of the operation status of the range hood and evaluation of the operation reliability. The cooperation of the control board and the power meter in the system can objectively reflect the operation reliability of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the detection flow chart of Embodiment 1 of the present invention;

[0027] Figure 2It is the detection flow chart of Embodiment 2 of the present invention;

[0028] Figure 3 It is the detection flow chart of Embodiment 3 of the present invention;

[0029] Figure 4 It is the schematic diagram of the hardware connection relationship of the detection system in Embodiment 4 of the present invention;

[0030] Figure 5 It is the schematic diagram of the hardware structure of the detection system in Embodiment 4 of the present invention;

[0031] Figure 6 It is the display style of the detection system in Embodiment 4 of the present invention when setting preset parameters;

[0032] Figure 7 It is the display style of the detection system in Embodiment 4 of the present invention when running;

[0033] Figure 8 It is Figure 5 the schematic diagram of the structure in

[0034] In the figure:

[0035] 1 - control board; 2 - power meter; 3 - keypad; 4 - display screen;

[0036] 5 - electromagnetic moving iron; 51 - upper sliding groove; 52 - lower sliding groove; 53 - movable structure;

[0037] 6 - variable frequency range hood; 7 - power supply;

[0038] 8 - fixed bracket; 81 - upper support rod; 82 - lower support rod. Detailed implementation manners

[0039] To clearly illustrate the design concept of the present invention, the present invention will be described below with examples.

[0040] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the examples of the present invention. Obviously, the described examples are only a part of the examples of the present invention, rather than all the examples. Based on the examples in the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of this embodiment, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0042] In an example of the present invention, a method for detecting the operation reliability of a variable-frequency range hood is provided, which is applied to at least one of the following operation stages of the range hood: standby stage, light-on stage, and high-airflow stage. The method includes:

[0043] Obtain the operating power of the range hood in real time;

[0044] In a certain operation stage, if the operating power is not within the preset power range, it is determined that the range hood is operating incorrectly, and the number of incorrect operations is incremented by 1, where the initial value of the number of incorrect operations is 0;

[0045] Record the total number of operations and the number of incorrect operations in each operation stage, where the preset power ranges for different operation stages are different.

[0046] In the method for detecting the operation reliability of the variable-frequency range hood in this example, by obtaining the operating power of the variable-frequency range hood in real time, the operating condition of the range hood can be monitored in real time. Compared with only observing the operating state of the range hood by personnel, obtaining the operating power of the range hood in real time can more objectively and accurately reflect the operating situation of the range hood. The detection method of judging whether the operating power is within the preset power range can more objectively reflect the working state of the range hood. By recording the total number of operations and the number of incorrect operations in each operation stage of the range hood, the operating reliability of the range hood can be reflected to a certain extent.

[0047] The above-mentioned preset power range is obtained by those skilled in the art through long-term experiments and experience, or is set according to industry or national standards. For variable-frequency range hoods with different structural sizes, the range of their preset power is different. This detection method can detect a certain operation stage of the range hood once, or detect more than two operation stages of the range hood at a time, or can also perform cyclic detection on a single or more than two operation stages of the range hood.

[0048] Without conflict, the embodiments and features in the embodiments in this application can be combined with each other. To more clearly illustrate the technical solutions in the present invention, the following will refer to the drawings and combine with embodiments to detail the present invention.

[0049] Embodiment 1

[0050] As Figure 1As shown in the figure, the first implementation of the method for detecting the operation reliability of the variable-frequency range hood of the present invention. In this embodiment, a cyclic detection is performed on the high-air-volume stage of the variable-frequency range hood. The method includes:

[0051] Initializing preset parameters and operating parameters 101: The preset parameters include the preset power range in the high-air-volume stage and the operating time in the high-air-volume stage. The operating parameters include the operating power, the total number of operations in the high-air-volume stage, and the number of incorrect operations. Initializing the preset parameters means setting all the above preset parameters to 0, and initializing the operating parameters means setting all the above operating parameters to 0 to avoid the influence of past detections on the current detection. Among them, the number of incorrect operations refers to: when in the high-air-volume stage, if the operating power is not within the preset power range, it is determined that the range hood is operating incorrectly, and the number of incorrect operations is incremented by 1. The initial value of the number of incorrect operations is 0. That is to say, within the operating time range of one high-air-volume stage, the operating power changes in real time. Regardless of the duration for which the operating power is not within the preset power range, the number of incorrect operations is incremented by 1.

[0052] Setting preset parameters 102: According to the structure of the variable-frequency range hood, specific values are set for the above preset parameters. In this embodiment, the set values of the preset parameters are: the preset power range is 120W - 140W, and the operating time in the high-air-volume stage is 5h.

[0053] Starting the range hood (the range hood is in the standby stage) 103: Power on the range hood for subsequent detections.

[0054] Switching to the high-air-volume stage 107: After starting the range hood, switch the working state of the range hood to the high-air-volume stage. The high-air-volume stage is the operating stage where the range hood consumes the most power.

[0055] Real-time obtaining and displaying the operating parameters in the high-air-volume stage 108: That is, real-time obtaining the operating power, the total number of operations, and the number of incorrect operations in this high-air-volume stage.

[0056] Turning off the range hood 109: After the operating time of one high-air-volume stage ends, turn off the range hood.

[0057] After turning off the range hood, immediately start the range hood again to perform the reliability detection of the high-air-volume stage, that is, execute the above steps 103, 107, 108, and 109 again. And so on, perform cyclic detection.

[0058] Since during the high-air-volume operation stage, the range hood is in the operating state with the maximum power, the operation reliability of the range hood in this stage is particularly important. Therefore, this embodiment performs cyclic detection on the high-air-volume stage.

[0059] Embodiment 2

[0060] As Figure 2As shown in the figure, the second implementation of the method for detecting the operation reliability of the variable-frequency range hood of the present invention. In this embodiment, cyclic detection is performed on the light-on stage and the high-air-volume stage of the variable-frequency range hood. The method includes:

[0061] Initializing preset parameters and operating parameters 101: The preset parameters include the preset power range in the light-on stage, the operating time in the light-on stage, the preset power range in the high-air-volume stage, and the operating time in the high-air-volume stage. The operating parameters include the operating power, the total number of runs and the number of incorrect runs in the light-on stage, and the total number of runs and the number of incorrect runs in the high-air-volume stage. Initializing the preset parameters means setting all the above preset parameters to 0, and initializing the operating parameters means setting all the above operating parameters to 0 to avoid the influence of previous detections on the current detection. Among them, the number of incorrect runs refers to: when operating in the light-on stage and in the high-air-volume stage, if the operating power is not within the preset power range of the corresponding operating stage, it is determined that the range hood is operating incorrectly, and the corresponding number of incorrect runs is incremented by 1. The initial value of the number of incorrect runs in each operating stage is 0. That is to say, within the operating time range of a certain operating stage, the operating power changes in real time. Regardless of the duration of the operating power not being within the preset power range, the number of incorrect runs is incremented by 1.

[0062] Setting the preset parameters 102: According to the structure of the variable-frequency range hood, specific values are set for the above preset parameters. In this embodiment, the set values of the preset parameters are as follows: the preset power range in the light-on stage is 4 - 5W, the operating time in the light-on stage is 0.5h, the preset power range in the high-air-volume stage is 120W - 140W, and the operating time in the high-air-volume stage is 5h.

[0063] Starting the range hood (the range hood is in the standby stage) 103: Power on the range hood for subsequent detection.

[0064] Switching to the light-on stage 105: After starting the range hood, switch the working state of the range hood to the light-on stage.

[0065] Real-time obtaining and displaying the operating parameters in the light-on stage 106: That is, real-time obtaining the operating power, the total number of runs and the number of incorrect runs in this stage

[0066] Switching to the high-air-volume stage of the range hood 107: After the operating time in the light-on stage ends, switch the working state of the range hood to the high-air-volume stage. The high-air-volume stage is the stage where the range hood consumes the most power.

[0067] Real-time obtaining and displaying the operating parameters in the high-air-volume stage 108: That is, real-time obtaining the operating power, the total number of runs and the number of incorrect runs in this stage.

[0068] Turning off the range hood 109: After the operating time in one high-air-volume stage ends, turn off the range hood.

[0069] After turning off the range hood, immediately start the range hood again to detect the operating reliability during the light-on stage and the high-airflow stage, that is, execute the above steps 103, 105, 106, 107, 108, and 109 again. And so on, perform cyclic detection.

[0070] During the detection process, the power of the range hood is displayed in real time; during the detection of the light-on stage, the total number of runs and the number of incorrect runs in the light-on stage are displayed, and at the same time, the total number of runs and the number of incorrect runs in the high-airflow stage are displayed. Similarly, during the detection of the high-airflow stage, while displaying the total number of runs and the number of incorrect runs in the high-airflow stage, the total number of runs and the number of incorrect runs in the light-on stage are displayed.

[0071] Embodiment 3

[0072] As Figure 3 shown, the third implementation method of the operating reliability detection method of the variable-frequency range hood of the present invention, this embodiment performs cyclic detection on the standby stage, the light-on stage, and the high-airflow stage of the variable-frequency range hood. The method includes:

[0073] Initializing preset parameters and operating parameters 101: The preset parameters include the preset power range in the standby stage, the operating time in the standby stage, the preset power range in the light-on stage, the operating time in the light-on stage, the preset power range in the high-airflow stage, and the operating time in the high-airflow stage. The operating parameters include the operating power, the total number of runs and the number of incorrect runs in the standby stage, the total number of runs and the number of incorrect runs in the light-on stage, and the total number of runs and the number of incorrect runs in the high-airflow stage. Initializing the preset parameters means setting all the above preset parameters to fixed values. For example, the preset power range in the standby stage is 0 to 1 W, the operating time in the light-on stage is 0.2 h, the preset power range in the light-on stage is 4 to 5 W, the operating time in the light-on stage is 0.5 h, the preset power range in the high-airflow stage is 120 W to 140 W, and the operating time in the high-airflow stage is 5 h. When performing mass detection of unified products, the preset parameter values are the same, avoiding repeated setting and wasting time later. Initializing the operating parameters means setting all the above operating parameters to 0 to avoid the influence of previous detections on the current detection. Among them, the number of incorrect runs refers to: when operating in the standby stage, the light-on stage, and the high-airflow stage, if the operating power is not within the preset power range of the corresponding operating stage, it is determined that the range hood is operating incorrectly, and the corresponding number of incorrect runs is incremented by 1. The initial value of the number of incorrect runs in each operating stage is 0. That is to say, within the operating time range of a certain operating stage, the operating power changes in real time. Regardless of the duration of the operating power not being within the preset power range, the number of incorrect runs is incremented by 1.

[0074] Set preset parameter 102: In this example, since the corresponding values have been set for the preset parameter in the step of initializing the preset parameter and the operating parameter 101, this step only checks and confirms the preset parameter values set in the previous step.

[0075] Start the range hood (the range hood is in the standby stage) 103: Power on the range hood for subsequent detection. At this time, the range hood is working in the standby stage.

[0076] Obtain and display the operating parameters in the standby stage in real time 104: That is, obtain the operating power, total number of operations, and number of incorrect operations in this stage in real time.

[0077] Switch to the light-on stage 105: After the operation time in the standby stage ends, switch the working state of the range hood to the light-on stage.

[0078] Obtain and display the operating parameters in the light-on stage in real time 106: That is, obtain the operating power, total number of operations, and number of incorrect operations in this stage in real time.

[0079] Switch to the high-airflow stage of the range hood 107: After the operation time in the light-on stage ends, switch the working state of the range hood to the high-airflow stage, which is the stage where the range hood consumes the most power.

[0080] Obtain and display the operating parameters in the high-airflow stage in real time 108: That is, obtain the operating power, total number of operations, and number of incorrect operations in this stage in real time.

[0081] Turn off the range hood 109: After the operation time in one high-airflow detection stage ends, turn off the range hood.

[0082] After turning off the range hood, immediately start the range hood to perform the reliability detection of the high-airflow stage, that is, execute the above steps 103 - 109 again. And so on, for cyclic detection.

[0083] During the detection process, the power of the range hood is displayed in real time; during the detection in the standby stage, the total number of operations and the number of incorrect operations in the standby stage are displayed, and at the same time, the total number of operations and the number of incorrect operations in the light-on stage and the high-airflow stage are also displayed; similarly, during the detection in the light-on stage, while displaying the total number of operations and the number of incorrect operations in the light-on stage, the total number of operations and the number of incorrect operations in the standby stage and the high-airflow stage are also displayed; during the detection in the high-airflow stage, while displaying the total number of operations and the number of incorrect operations in the high-airflow stage, the total number of operations and the number of incorrect operations in the standby stage and the light-on stage are also displayed.

[0084] Example 4

[0085] This embodiment provides a first implementation manner of a variable-frequency range hood operation reliability detection system. This system can detect at least one of the following operation stages of the variable-frequency range hood: standby stage, light-on stage, and high-airflow stage (the stage with the maximum working power of the variable-frequency range hood), as Figure 4 shown. This detection system includes a control board 1 and a power meter 2. The power meter 2 is used to obtain the operating power of the variable-frequency range hood in real time and transmit the operating power to the control board 1. The control board 1 is used to record the total number of operations and the number of incorrect operations in each operation stage. Incorrect operation means that the operating power is not within the preset power range. The control board 1 is used to determine whether the range hood is in an incorrect operation. When the range hood is in an incorrect operation, the control board 1 is also used to increment the number of incorrect operations by 1. Among them, the initial number of incorrect operations is 0, and the preset power ranges for each operation stage are different.

[0086] In the variable-frequency range hood operation reliability detection system of this embodiment, by using the power meter 2 to obtain the operating power of the variable-frequency range hood in real time, the operating condition of the variable-frequency range hood can be monitored in real time. Obtaining the operating power of the variable-frequency range hood in real time can more objectively and accurately reflect the operating condition of the variable-frequency range hood compared with only observing the operating state of the variable-frequency range hood by personnel. The detection method of using the control board 1 to determine whether the operating power is within the preset power range can more objectively reflect the working state of the variable-frequency range hood. By using the control board 1 to record the total number of operations and the number of incorrect operations in each operation stage of the variable-frequency range hood, the operating reliability of the variable-frequency range hood can be reflected to a certain extent. The preset power ranges for each operation stage can be preset into the control board 1.

[0087] As Figure 4-5 shown, the detection system of this embodiment further includes a keypad 3, a display screen 4, an electromagnetic moving iron 5, a variable-frequency range hood 6, a power supply 7, and a fixing bracket 8. The power supply 7 is a power supply system that can provide different voltages to supply power to the control board 1, the power meter 2, the electromagnetic moving iron 5, and the variable-frequency range hood 6 respectively. Among them, both the keypad 3 and the display screen 4 are connected to the control board 1. Therefore, the keypad 3 and the display screen 4 are actually powered by the power supply 7 indirectly through the control board.

[0088] The keypad 3 is used to set the preset parameters for at least one operating stage and feedback the values of the set preset parameters to the control board 1. The preset parameters include the preset power range and operating time for each operating stage. In this embodiment, the preset parameters set by the keypad 3 are: the preset power range in the standby stage, the operating time in the standby stage, the preset power range in the light-on stage, the operating time in the light-on stage, the preset power range in the high air volume stage, and the operating time in the high air volume stage. Among them, the preset power range in the standby stage is divided into the upper power limit and the lower power limit in the standby stage. Similarly, the preset power range in the light-on stage is divided into the upper power limit and the lower power limit in the light-on stage, and the preset power range in the high air volume stage is divided into the upper power limit and the lower power limit in the high air volume stage. When setting the preset parameters, some or all of the preset parameters can be displayed on the display screen 4. As Figure 6 shown is the display style of the setting list of all preset parameters. Among them, the correspondence between the parameters in the display list and the preset parameters is:

[0089]

[0090] The keypad 3 is provided with a start button and buttons for setting preset parameters. As Figure 5 shown, five buttons are provided on the keypad 3 of this embodiment, and their names and corresponding functions are shown in the following table:

[0091]

[0092] The preset parameters in the above Set List are set through the buttons Key_Up / Key_Down, Key_Right, and Key_Left. After the preset parameters are set, the Key_Go can be pressed to start the detection of the variable-frequency range hood 6.

[0093] After pressing the Key_Go to start the detection of the variable-frequency range hood 6, the display screen 4 is used to display the operating parameters and the total detection time of the detection system. The operating parameters in this embodiment include the operating power displayed in real time, the total number of operating times and the number of error operating times in the standby stage, the total number of operating times and the number of error operating times in the light-on stage, and the total number of operating times and the number of error operating times in the high air volume stage. As Figure 7 shown is the display style of all operating parameters and the total operating time. Among them, the correspondence between the parameters in the display list and the operating parameters is:

[0094]

[0095] As Figure 5As shown in the figure, the electromagnetic moving iron 5 is installed in front of the range hood button and is used to control the start and stop of the variable-frequency range hood 6 and the switching between different operating stages. The detection system of this embodiment includes three electromagnetic moving irons 5, which are respectively installed in front of the start / stop button, the light-on button, and the high-air-volume button. Correspondingly, they are used to control the start and stop of the variable-frequency range hood 6 and switch to the light-on stage and the high-air-volume stage of the variable-frequency range hood 6. The electromagnetic moving iron 5 is provided with a movable structure 53 that can pop out, and the corresponding range hood button is controlled by manipulating the movable structure 53. The electromagnetic moving iron 5 is installed in front of the range hood button through a fixed bracket 8. The fixed bracket 8 is provided with an upper rod 81 and a lower rod 82 that are parallel up and down. The two ends of the upper rod 81 and the lower rod 82 are connected by vertical rods. Near one end of the vertical rod, the upper rod 81 is provided with an opening, as Figure 5 shown, an opening is provided in the upper rod 81 near the vertical rod at the right end, and the width of the opening is equal to the width of the electromagnetic moving iron 5; upper sliding grooves 51 and lower sliding grooves 52 that match the widths of the upper rod 81 and the lower rod 82 are provided at the upper and lower ends of the electromagnetic moving iron 5. The widths of the upper rod 81 and the lower rod 82 are the same. Correspondingly, the widths of the upper sliding grooves 51 and the lower sliding grooves 52 are also the same. The electromagnetic moving iron 5 is slidably installed between the upper rod 81 and the lower rod 82 through the opening on the upper rod 81. The electromagnetic moving iron 5 can slide between the upper rod 81 and the lower rod 82, so as to be easily installed in front of the corresponding button for controlling the operation of the variable-frequency range hood 6, adapt to different positions of the range hood buttons, and when the range hood buttons increase, it is also convenient to increase the electromagnetic moving iron 5.

[0096] In this embodiment, the hardware operation process of the variable-frequency range hood operation reliability detection system is as follows:

[0097] The control board 1, the power meter 2, the electromagnetic moving iron 5, and the variable-frequency range hood 6 are powered by the power supply 7. The preset parameters are set through the buttons Key_Up / Key_Down, Key_Right, and Key_Left on the button board 3. Then, press Key_Go on the button board 3 to start the detection of the variable-frequency range hood 6. According to the built-in program system of the control board 1, the operation parameters of each operation stage are automatically detected. It can be the cyclic detection method provided in Embodiment 1, Embodiment 2, or Embodiment 3, or only a single detection of one or several operation stages of the operation of the variable-frequency range hood 6. This mainly depends on the program settings in the control board 1. When the detection operation time of the variable-frequency range hood 6 reaches the set value (this set value can be the value required in national or industry standards, or the value obtained by those skilled in the art through long-term experiments and experience. When the detection time reaches this set value, it can already fully reflect the operation reliability of the variable-frequency range hood), the operator can stop the detection of the operation of the variable-frequency range hood 6 by Key_Back on the button board 3, and then operate the power supply 7 to stop supplying power to the detection system.

[0098] It should be noted that, in addition to the specific examples given above, some of the structures can have different options. And these can be made by those skilled in the art based on their basic skills on the basis of understanding the idea of the present invention, so they will not be listed one by one here.

[0099] Finally, it can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, however, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the principle and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A reliability detection system for a variable-frequency range hood during operation, characterized in that For detecting at least one of the following operating stages of the range hood: standby stage, light-on stage, and high-airflow stage; the detection system includes a control board and a power meter, the power meter is used to obtain the operating power of the range hood in real time and transmit the operating power to the control board; the control board is used to record the total number of operating times and the number of incorrect operating times in each operating stage, the incorrect operation means that the operating power is not within the preset power range, the control board is used to determine whether the range hood is in the incorrect operation, when the range hood is in the incorrect operation, the control board is further used to increment the number of incorrect operating times by 1, wherein, the initial number of incorrect operating times is 0, and the preset power ranges in each operating stage are different; The detection system includes three electromagnetic armatures (5), which are respectively installed in front of the start / stop button, the light-on button, and the high-airflow button, and are used to control the start and stop of the variable-frequency range hood (6), and switch to the light-on stage and the high-airflow stage of the variable-frequency range hood (6); The electromagnetic armature (5) is provided with a movable structure (53) that can pop out, and the corresponding range hood button is controlled by manipulating the movable structure (53); The electromagnetic armature (5) is installed in front of the range hood button through a fixed bracket (8); The fixed bracket (8) is provided with an upper support rod (81) and a lower support rod (82) that are parallel up and down. The two ends of the upper support rod (81) and the lower support rod (82) are connected by vertical rods. Near one end of the vertical rod, the upper support rod (81) is provided with an opening. Near the vertical rod at the right end, the upper support rod 81 is provided with an opening, and the width of the opening is equal to the width of the electromagnetic armature (5); The upper and lower ends of the electromagnetic armature (5) are provided with an upper sliding groove (51) and a lower sliding groove (52) that match the widths of the upper support rod (81) and the lower support rod (82). The widths of the upper support rod (81) and the lower support rod (82) are the same, and the widths of the upper sliding groove (51) and the lower sliding groove (52) are also the same; the electromagnetic armature (5) is slidably installed between the upper support rod (81) and the lower support rod (82) through the opening on the upper support rod (81). The electromagnetic armature (5) can slide between the upper support rod (81) and the lower support rod (82), so as to be easily installed in front of the corresponding button for controlling the operation of the variable-frequency range hood (6) and adapt to different positions of the range hood buttons. And when the range hood buttons increase, it is also convenient to increase the electromagnetic armature (5).

2. The variable-frequency range hood operation reliability detection system according to claim 1, wherein It further includes a button board, and the button board is used to input preset parameters to the control board, and the preset parameters include the preset power range and the operating time in each operating stage.

3. The variable-frequency range hood operation reliability detection system according to claim 2, wherein It further includes a display screen controlled by the control board. When setting the preset parameters, the display screen is used to display the preset parameters. When the range hood is operating, the display screen is used to display the operating parameters in real time, wherein, the operating parameters include the real-time operating power, the total number of operating times in each operating stage, and the number of incorrect operating times.

4. The variable-frequency range hood operation reliability detection system according to claim 3, wherein The control panel is further configured to initialize the preset parameters and the operating parameters before setting the preset parameters, wherein initializing the preset parameters means setting all the preset parameters to 0, or setting the preset parameters to fixed values respectively; initializing the operating parameters means setting all the operating parameters to 0.

5. A method for detecting the operation reliability of a variable-frequency range hood, characterized in that, Adopt the variable-frequency range hood operation reliability detection system according to claim 1; Applied to at least one of the following operation stages of the range hood: standby stage, light-on stage, and high-air-volume stage, the method includes: obtaining the operating power of the range hood in real time; if the operating power is not within the preset power range, determining that the range hood is in an incorrect operation, and incrementing the incorrect operation count by 1, wherein the initial value of the incorrect operation count is 0; recording the total operation count and the incorrect operation count in each operation stage, wherein the preset power ranges in each operation stage are different.

6. The method according to claim 5, wherein It further includes: Setting preset parameters, wherein the preset parameters include the preset power range and the operation time in each operation stage.

7. The method according to claim 6, characterized in that, It further includes: Displaying the operating parameters in real time, wherein the operating parameters include the operating power, the total operation count in each operation stage, and the incorrect operation count.

8. The method according to claim 7, characterized in that, Before setting the preset parameters, the method further includes: initializing the preset parameters and the operating parameters, wherein initializing the preset parameters means setting all the preset parameters to 0, or setting the preset parameters to fixed values respectively; initializing the operating parameters means setting all the operating parameters to 0.

9. The method according to claim 7, wherein It further includes: Starting the range hood before obtaining the operating power of the range hood in real time or after the range hood is turned off; After the end of a certain operation stage, turning off the range hood or switching the range hood to another operation stage.

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