Voltage interruption test passing method and device

Abstract

The invention discloses a voltage interruption test passing method and device, and the method comprises the steps: carrying out the interruption detection of a zero-crossing signal of electrical equipment under the control of a starting instruction for starting the electrical equipment; and if the zero-crossing signal is not detected, closing a load module of the electrical equipment to enable the electrical equipment to enter a low-power-consumption state. According to the invention, a capacitor with a small capacitance value can pass a voltage interruption test, and the cost of electrical equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a method and device for passing a voltage interruption test. Background Art

[0002] Voltage interruption test is an important test for most electrical equipment, such as air fryers and electric ovens. Voltage interruption test means that the supply voltage of the electrical equipment is suddenly reduced to almost zero, or reduced to below a certain threshold, and the threshold is much lower than the supply voltage of the electrical equipment, and then restored to normal voltage. In this case, the electrical equipment needs to be able to resume normal operation.

[0003] At present, a common method for passing a voltage interruption test is to install a relatively large electrolytic capacitor in the switching power supply of an electrical device. With a large electrolytic capacitor, even if the power supply of the electrical device is suddenly interrupted, the electrolytic capacitor can be used to temporarily supply power to ensure the normal operation of the electrical device. However, the size of the large electrolytic capacitor is also relatively large, and a correspondingly large-sized circuit board is required to match it, which increases the cost. Summary of the invention

[0004] The embodiments of the present invention provide a method and device for passing a voltage interruption test, aiming to solve the problem of high cost of the current method for passing a voltage interruption test.

[0005] In a first aspect, an embodiment of the present invention provides a method for passing a voltage interruption test, the method comprising:

[0006] Controlled by a start-up instruction for starting the electrical device, interrupt detection is performed on a zero-crossing signal of the electrical device;

[0007] If the zero-crossing signal is not detected, the load module of the electrical device is turned off to make the electrical device enter a low power consumption state.

[0008] In a second aspect, an embodiment of the present invention further provides a voltage interruption test passing device, the device comprising:

[0009] A first detection unit, configured to be controlled by a start-up instruction for starting the electrical device and to perform interrupt detection on a zero-crossing signal of the electrical device;

[0010] The first execution unit is used to turn off the load module of the electrical device to make the electrical device enter a low power consumption state if the zero-crossing signal is not detected.

[0011] The embodiment of the present invention provides a method and device for passing a voltage interruption test. The method includes: being controlled by a start-up instruction for starting the electrical device, performing an interruption detection on the zero-crossing signal of the electrical device; if the zero-crossing signal is not detected, shutting down the load module of the electrical device to enable the electrical device to enter a low-power consumption state. The embodiment of the present invention can perform a zero-crossing detection on the zero-crossing signal of the electrical device during normal operation of the electrical device, and shut down the load module of the electrical device when the zero-crossing signal is not detected, thereby reducing the power of the electrical device and enabling the electrical device to enter a low-power consumption state, thereby reducing the requirements on the capacity of the electrical device capacitor, and using ordinary capacitors to allow the electrical device to pass the interruption test, thereby reducing the cost of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0013] Figure 1 It is a flowchart of a voltage interruption test passing method provided by an embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of a first sub-process of the voltage interruption test passing method provided by an embodiment of the present invention;

[0015] Figure 3 It is a schematic diagram of a second sub-process of the voltage interruption test passing method provided by an embodiment of the present invention;

[0016] Figure 4 is a schematic diagram of a third sub-process of the voltage interruption test passing method provided by an embodiment of the present invention;

[0017] Figure 5 is a schematic diagram of a fourth sub-process of the voltage interruption test passing method provided by an embodiment of the present invention;

[0018] Figure 6 It is a schematic block diagram of a voltage interruption test passing device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, operations, elements, components and / or groups thereof.

[0021] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular forms of "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term "and / or" used in the specification of the present invention and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0022] See also Figure 1 , Figure 1 The flowchart of the voltage interruption test passing method provided by the embodiment of the present invention is shown in FIG. The voltage interruption test passing method of the embodiment of the present invention can be applied to electrical equipment, such as air fryers, ovens, etc., to turn off the load module of the electrical equipment to reduce power consumption when a voltage interruption occurs in the electrical equipment, so as to facilitate passing the voltage interruption test. Figure 1 As shown, the method includes steps S100 to S110.

[0023] S100, controlled by a start-up instruction for starting the electrical device, performing interrupt detection on a zero-crossing signal of the electrical device.

[0024] In the embodiment of the present invention, the electrical device may be a household electrical device, such as a water dispenser, an air fryer, an oven, etc. When testing the electrical device, the electrical device may be started first to put the electrical device in a normal working state, and then a voltage interruption test may be performed on the electrical device.

[0025] Taking the air fryer as an example, when conducting the continuity test, first connect the air fryer to the power supply and start it normally, then set the power, temperature, cooking time and other parameters of the air fryer to put the air fryer in a normal working state. When the air fryer is in normal working process, the power supply voltage of the air fryer is greatly reduced to produce the effect of voltage interruption, and the state of the air fryer after the voltage interruption is used to determine whether the air fryer can pass the voltage interruption test.

[0026] When receiving the start-up instruction, the control chip of the electrical device controls the electrical device to start, and the start-up instruction can be triggered by the user through the switch button of the electrical device. After the electrical device is started, the zero-crossing signal of the electrical device of the control chip is interrupted for detection. The electrical device can be built with a zero-crossing detection circuit, the input end of the zero-crossing detection circuit is connected to the power supply, and the output end of the zero-crossing detection circuit is connected to the control chip. For example, the zero-crossing detection circuit can be connected to the interrupt pin of the control chip, for detecting the zero-crossing signal of the power supply voltage, and sending the zero-crossing signal to the control chip, and the control chip interrupts the zero-crossing signal. It should be noted that the zero-crossing detection circuit can be a commonly used zero-crossing circuit in the field of technology, and its specific circuit structure is not described here.

[0027] The control chip will interrupt and detect the zero-crossing signal during the entire operation of the electrical equipment, and execute different steps according to the detection results. For example, when the control chip detects a zero-crossing signal, it confirms that the power supply voltage is normal and does not perform other operations to ensure the normal operation of the electrical equipment. When the control chip does not detect a zero-crossing signal, it confirms that the power supply voltage is abnormal and executes corresponding protection actions to protect the electrical equipment.

[0028] S110: If the zero-crossing signal is not detected, turning off the load module of the electrical device to put the electrical device into a low power consumption state.

[0029] In an embodiment of the present invention, when the control chip does not detect a zero-crossing signal, it indicates that the power supply voltage of the electrical device is abnormal, and a protective action can be performed on the electrical device. For example, the load module of the electrical device can be turned off to reduce the power consumption of the electrical device, so that the electrical device enters a low-power state. The specific modules included in the load modules of different electrical devices may be different. For example, if the electrical device is an oven, the load module may be a heating element, a buzzer, a display screen, and other modules. By turning off the load module, only necessary modules are kept in a working state. For example, the power supply to the control chip is retained, so that the electrical device is in a low-power state, reducing the demand for the power supply voltage, so that a small-capacitance energy storage capacitor can be used to power the electrical device and pass the voltage interruption test.

[0030] In some embodiments, such as the present embodiment, the step S110 includes steps S111 - S112 .

[0031] S111, if the zero-crossing signal is not detected, entering a zero-crossing signal confirmation period, and confirming whether the zero-crossing signal is detected within the zero-crossing signal confirmation period;

[0032] S112: If the zero-crossing signal is still not detected within the zero-crossing signal confirmation period, turning off the load module of the electrical device to put the electrical device into a low power consumption state.

[0033] In an embodiment of the present invention, when a zero-crossing signal is not detected, a zero-crossing signal confirmation cycle is entered, and the zero-crossing signal confirmation cycle refers to starting a timer to start timing when a zero-crossing signal is not detected for the first time, and confirming whether a zero-crossing signal is detected within the timing cycle, if a zero-crossing signal is still not detected after the timing ends, the load module is turned off, and the electrical device enters a low-power state. That is, the zero-crossing signal confirmation cycle is used to confirm whether the load module needs to be turned off to avoid misjudgment. The duration of the zero-crossing signal confirmation cycle can be set according to different electrical devices, and the specific cycle of each electrical device is an empirical value, which is set by the staff.

[0034] In some embodiments, such as the present embodiment, after the step of if the zero-crossing signal is not detected, steps S120 - S140 are further included.

[0035] S120, acquiring status information of the electrical device to obtain initial information, and recording the initial information;

[0036] S130, if the zero-crossing signal is detected again, restarting the load module of the electrical device;

[0037] S140: Restoring the current state of the electrical device to be consistent with the state recorded in the initial information according to the initial information.

[0038] In an embodiment of the present invention, after the zero-crossing signal is not detected and before the load module is turned off, it is necessary to obtain the status information of the electrical device to obtain the initial information and record the initial information. The initial information mainly includes the current status of the electrical device when the zero-crossing signal is not detected. For example, for an oven, the initial information may include information such as the set temperature, the current temperature, and the mode. Specifically, if the set temperature of an oven is 100°C, the current temperature is 80°C, and the mode is the normal mode when the zero-crossing signal is not detected, the above information needs to be recorded. After the recording is completed, the load module of the electrical device is turned off.

[0039] When the zero-crossing signal is detected again, it indicates that the power supply voltage has returned to normal, then the load module can be restarted, and the state of the load module can be restored to the state recorded in the initial information. For example, if the initial information includes the set temperature of 100°C, the current temperature of 80°C, and the mode of normal mode, then after the load module is restarted, the state of the load module is restored to the set temperature of 100°C, the current temperature of 80°C, and the mode of normal mode. The initial information of different electrical equipment is different, and the initial information is mainly used to restore the state of the load module to the state before it was shut down.

[0040] In some embodiments, such as the present embodiment, after the step of restarting the load module of the electrical device upon re-detecting the zero-crossing signal, steps S150-S170 are further included.

[0041] S150, confirming the recovery mode selected by the user, wherein the recovery mode includes an initialization mode and a recovery mode;

[0042] S160, if the recovery mode selected by the user is the restoration mode, entering the step of restoring the current state of the electrical device to a state consistent with the state recorded in the initial information according to the initial information;

[0043] S170: If the recovery mode selected by the user is the initialization mode, initializing the electrical device.

[0044] In an embodiment of the present invention, after restarting the electrical module, two recovery modes are provided for the user to choose, one mode is the recovery mode, in which the state of the electrical equipment is restored to the state before shutdown, and the other mode is the initialization mode, in which the load module of the electrical equipment is initialized.

[0045] The following is a comprehensive description of the voltage interruption test. When performing a voltage interruption test on an electrical device, first start the electrical device normally, then perform a zero-crossing detection on the electrical device. If no zero-crossing signal is detected, indicating that the electrical device has an abnormal power supply and there is a voltage interruption, the initial information of the load module of the electrical device is obtained, and the load module is turned off to reduce the demand for energy storage capacitors, so that small-capacitance energy storage capacitors can power the electrical device. After re-detecting the zero-crossing signal, the state of the load module is restored to be consistent with the state recorded in the initial information, thereby not only allowing the voltage interruption test to be passed with a small-capacitance energy storage capacitor, but also ensuring that the state of the electrical equipment is not affected.

[0046] Figure 6 2 is a schematic block diagram of a voltage interruption test passing device 200 provided by an embodiment of the present invention. Figure 6 As shown, corresponding to the above voltage interruption test passing method, the present invention also provides a voltage interruption test passing device 200. The voltage interruption test passing device 200 includes a unit for executing the above voltage interruption test passing method. Figure 6 The voltage interruption test passing device 200 includes a first detection unit 201 and a first execution unit 202 .

[0047] The first detection unit 201 is used to be controlled by a start-up instruction for starting the electrical device and to perform interrupt detection on the zero-crossing signal of the electrical device;

[0048] The first execution unit 202 is configured to shut down the load module of the electrical device to put the electrical device into a low power consumption state if the zero-crossing signal is not detected.

[0049] In some embodiments, such as this embodiment, the first acquisition unit 202 includes a first detection unit and a third acquisition unit.

[0050] Wherein, the first confirmation unit is used for entering a zero-crossing signal confirmation period if the zero-crossing signal is not detected, and confirming whether the zero-crossing signal is detected within the zero-crossing signal confirmation period;

[0051] The second execution unit is used for turning off the load module of the electrical device to make the electrical device enter a low power consumption state if the zero-crossing signal is still not detected within the zero-crossing signal confirmation period.

[0052] In some embodiments, such as the present embodiment, the voltage interruption test passing device 200 further includes a first acquisition unit, a second detection unit and a first recovery unit.

[0053] The first acquisition unit is used to acquire the state information of the electrical device to obtain initial information, and record the initial information;

[0054] The second detection unit is used to restart the load module of the electrical device if the zero-crossing signal is detected again;

[0055] The first restoring unit is used to restore the current state of the electrical device to be consistent with the state recorded in the initial information according to the initial information.

[0056] In some embodiments, such as the present embodiment, the voltage interruption test passing device 200 further includes a second confirmation unit, a first jump unit and an initialization unit.

[0057] The second confirmation unit is used to confirm the recovery mode selected by the user, wherein the recovery mode includes an initialization mode and a recovery mode;

[0058] The first jump unit is used for entering the step of restoring the current state of the electrical device to the state consistent with the state recorded in the initial information according to the initial information if the recovery mode selected by the user is the restoration mode;

[0059] The initialization unit is used for initializing the electrical device if the recovery mode selected by the user is the initialization mode.

[0060] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned voltage interruption test device and each unit can refer to the corresponding description in the aforementioned method embodiment, and for the convenience and brevity of description, it will not be repeated here.

[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0063] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A voltage interruption test passing method, characterized in that: Applied to electrical equipment, the method comprises: Controlled by a start-up instruction for starting the electrical device, interrupt detection is performed on a zero-crossing signal of the electrical device; If the zero-crossing signal is not detected, the load module of the electrical device is turned off to make the electrical device enter a low power consumption state.

2. The method according to claim 1, characterized in that After the step of if the zero-crossing signal is not detected, the method further includes: Acquire status information of the electrical device to obtain initial information, and record the initial information.

3. The method according to claim 2, characterized in that The method further comprises: If the zero-crossing signal is detected again, restarting the load module of the electrical device; According to the initial information, the current state of the electrical device is restored to be consistent with the state recorded in the initial information.

4. The method according to claim 3, characterized in that After the step of re-detecting the zero-crossing signal and restarting the load module of the electrical device, the method further includes: Confirming the recovery mode selected by the user, wherein the recovery mode includes an initialization mode and a recovery mode; If the recovery mode selected by the user is the restoration mode, the process proceeds to the step of restoring the current state of the electrical device to be consistent with the state recorded in the initial information according to the initial information.

5. The method according to claim 4, characterized in that After the step of confirming the recovery mode selected by the user, the method further includes: If the recovery mode selected by the user is the initialization mode, the electrical device is initialized.

6. The method according to claim 1, characterized in that If the zero-crossing signal is not detected, the step of shutting down the load module of the electrical device to make the electrical device enter a low power consumption state comprises: If the zero-crossing signal is not detected, entering a zero-crossing signal confirmation period, and confirming whether the zero-crossing signal is detected within the zero-crossing signal confirmation period; If the zero-crossing signal is still not detected within the zero-crossing signal confirmation period, the load module of the electrical device is turned off to make the electrical device enter a low power consumption state.

7. The method according to claim 1, characterized in that The method further comprises: obtaining an input voltage of the electrical device; If the input voltage is lower than a preset threshold, the electrical device is turned off.

8. A voltage interruption test passing device, characterized in that: Applied to electrical equipment, the device comprises: A first detection unit, configured to be controlled by a start-up instruction for starting the electrical device and to perform interrupt detection on a zero-crossing signal of the electrical device; The first execution unit is used to turn off the load module of the electrical device to make the electrical device enter a low power consumption state if the zero-crossing signal is not detected.

9. The device according to claim 8, characterized in that The device also includes: The first acquisition unit is used to acquire the state information of the electrical device to obtain initial information and record the initial information.

10. The device according to claim 9, characterized in that The device also includes: A second detection unit, configured to restart the load module of the electrical device if the zero-crossing signal is detected again; The first restoring unit is used to restore the current state of the electrical device to be consistent with the state recorded in the initial information according to the initial information.

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