Home appliances
By introducing a parallel power switch and protection switch into household appliances, and using a control module and a magnetic action module to keep the protection switch turned on, the problem of power outages caused by children accidentally touching the power button is solved, ensuring the normal operation of the equipment.
Patent Information
- Application Number
- CN202111300508.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-04
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2041-11-04
AI Technical Summary
Existing child lock programs cannot prevent the power button of home appliances from being accidentally touched, which may interrupt the working process and affect the user's usage plan.
A parallel power switch and a protective switch are introduced into the power circuit of the household appliance, and a control module and a magnetic action module are used to ensure that the protective switch remains turned on when a child accidentally touches the power switch, thereby preventing the device from being powered off.
It effectively prevents home appliances from losing power when children accidentally touch the power button, avoids interruption of working procedures, and ensures normal operation of the equipment.
Smart Images

Figure CN114164619B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of smart home appliances, for example, to a home appliance device. Background Art
[0002] Currently, home appliances (such as washing machines, dryers, ovens, etc.) have brought great convenience to users' lives. However, children in the user's family may randomly press the operation buttons of home appliances, causing the appliances to malfunction and even causing harm to the children.
[0003] A method for controlling a washing machine is disclosed. The washing machine includes a height detection device that obtains a user's height information through the height detection device. Based on the obtained height information, the washing machine issues a corresponding prompt message and / or corresponding setting information. When the height falls below a certain threshold, the washing machine issues a warning message and activates a child lock function to prevent children from improperly using the washing machine and causing danger, making the washing machine safer and more reliable and improving the user experience.
[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:
[0005] The existing child lock program can only prevent the misoperation of function buttons, but it has no effect on the power button of home appliances. If a child touches the power button by mistake, the working program of the home appliance will be interrupted and the working process will stop completely, delaying the user's original plan. Summary of the Invention
[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0007] An embodiment of the present disclosure provides a home appliance to prevent the working process of the home appliance from being interrupted when a child accidentally touches the power button of the home appliance.
[0008] In some embodiments, the household appliance includes a power supply having a neutral line and a live line, and further includes:
[0009] a switch circuit connected between the neutral wire and the live wire, comprising a power switch and a protection switch connected in parallel, wherein the power switch is closed and turned on under the action of an external force, and the protection switch is closed and turned on under the action of a magnetic force in a first direction;
[0010] a control circuit connected in series with the switch circuit between the neutral line and the live line, comprising a control module and a magnetic action module, wherein the magnetic action module is arranged on one side of the protection switch in the first direction and generates a magnetic force under the control of the control module;
[0011] The control module obtains power when the power switch is closed and controls the magnetic action module to generate magnetic force to close and turn on the protection switch, and the control module maintains power supply when the protection switch is closed and turned on.
[0012] The household appliance provided by the embodiments of the present disclosure can achieve the following technical effects:
[0013] When an adult user presses the power switch, the power switch closes and turns on, powering the control module. The control module then controls the magnetic interaction module to generate magnetic force, closing and turning on the protection switch. If a child accidentally touches the power switch, causing it to turn off, the control module remains powered because the protection switch remains closed. Because the control module maintains power, it controls the magnetic interaction module to maintain magnetic force, thereby keeping the protection switch closed and the control module powered. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the power button.
[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,
[0016] Figure 1 This is a schematic diagram of the overall structure of a household appliance provided by an embodiment of the present disclosure;
[0017] Figure 2 This is a basic circuit diagram of a household appliance provided by an embodiment of the present disclosure;
[0018] Figure 3 This is a schematic diagram of the circuit and device layout of a household appliance provided by an embodiment of the present disclosure;
[0019] Figure 4 This is a schematic diagram of a protective switch structure of a household appliance provided by an embodiment of the present disclosure;
[0020] Figure 5 This is a schematic diagram of the circuit and device arrangement after a switch of a household appliance is pressed, provided by an embodiment of the present disclosure;
[0021] Figure 6 This is a schematic diagram of the circuit and device arrangement after a protection switch of a household appliance is accidentally touched during normal operation, provided by an embodiment of the present disclosure;
[0022] Figure 7 This is a schematic diagram of the circuit and device arrangement when an unlocking magnet of a household appliance is placed in a preset unlocking area provided by an embodiment of the present disclosure;
[0023] Figure 8 This is a schematic diagram of the circuit and device arrangement when the unlock switch of another household appliance provided by an embodiment of the present disclosure is disconnected.
[0024] Reference numerals:
[0025] 1: Switching circuit; 2: Power switch; 3: Protection switch; 4: Control circuit; 5: Control module; 6: Magnetic action module; 7: Magnetic knife switch component; 8: Normally open terminal; 9: Magnetic knife switch; 10: Spring; 11: Unlocking magnet; 12: Housing; 13: Top cover; 14: Side panel; 15: Unlocking switch; 16: Neutral wire; 17: Live wire; 18: Preset unlocking area. DETAILED DESCRIPTION
[0026] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0027] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.
[0028] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0029] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.
[0030] Unless otherwise stated, the term "plurality" means two or more.
[0031] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.
[0032] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0034] Combine Figure 1-7As shown, an embodiment of the present disclosure provides a household appliance, including a power supply, a switching circuit 1 and a control circuit 4. The power supply has a neutral line 16 and a live line 17. The switching circuit 1 is connected between the neutral line 16 and the live line 17, and includes a power switch 2 and a protection switch 3 connected in parallel. The power switch 2 is closed and turned on under the action of an external force, and the protection switch 3 is closed and turned on under the action of a magnetic force in a first direction. The control circuit 4 is connected in series with the switching circuit 1 between the neutral line 16 and the live line 17, and includes a control module 5 and a magnetic action module 6. The magnetic action module 6 is arranged on one side of the protection switch 3 in the first direction and generates a magnetic force under the control of the control module 5. The control module 5 obtains power when the power switch 2 is closed and turned on, and controls the magnetic action module 6 to generate a magnetic force to close and turn on the protection switch 3, and the power is maintained when the protection switch 3 is closed and turned on.
[0035] The household appliance provided by the embodiment of the present disclosure can, when an adult user presses the power switch, close the power switch and turn it on, so that the control module obtains power, and the control module controls the magnetic action module to generate magnetic force to close and turn on the protection switch. In the case where a child accidentally touches the power switch, causing the power switch 2 to turn off from closed to on, the control module is kept powered because the protection switch 3 is still in the closed and on state. And because the control module 5 is still powered, the magnetic action module is controlled to maintain the magnetic force, thereby keeping the protection switch 3 continuously closed and on, and the control module 5 is still powered. In this way, when a child accidentally touches the power button of the household appliance, the household appliance is prevented from being powered off, and the working process of the household appliance is prevented from being interrupted.
[0036] Optionally, the power switch 2 switches from closed to open under the action of an external force. When the power switch 2 switches from closed to open, the protection switch 3 remains closed, the control module 5 remains powered, and the magnetic control module 6 maintains the magnetic force to keep the protection switch 3 closed. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the power button.
[0037] Optionally, the protection switch 3 is disconnected when the magnetic force in the first direction is less than a preset threshold. Specifically, the protection switch 3 is disconnected when the magnetic force in the first direction disappears. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the power button. Furthermore, if the protection switch 3 is closed in an emergency and the appliance needs to stop operating, and unplugging the socket is inconvenient, the protection switch 3 can simply be disconnected from the preset threshold to disconnect the appliance's operation.
[0038] Optionally, the protection switch 3 includes a magnetic blade component 7 and a normally open terminal 8. The normally open terminal 8 is disposed in a first direction relative to the magnetic blade component 7. A first end of the normally open terminal 8 is electrically connected to the magnetic blade component 7. When subjected to a magnetic force in the first direction, the second end of the normally open terminal 8 is electrically connected to the magnetic blade component 7, closing and conducting the protection switch 3. Thus, when the protection switch 3 is subjected to a magnetic force in the first direction, the magnetic blade component 7 is electrically connected to the second end of the normally open terminal 8, closing and conducting the protection switch 3. This prevents a power outage in the home appliance, preventing the appliance's operation from being interrupted if a child accidentally touches the power button.
[0039] Optionally, when the first-direction magnetic force is less than a preset threshold, the second end of the normally open terminal 8 is electrically disconnected from the magnetic blade component 7, and the protective switch 3 is disconnected. In this way, on the one hand, when the protective switch 3 is subjected to the first-direction magnetic force, the magnetic blade component 7 is electrically connected to the second end of the normally open terminal 8, so that the protective switch 3 is closed and turned on. In the event that a child accidentally touches the power button of a household appliance, the household appliance is prevented from being powered off and the working procedure of the household appliance is prevented from being interrupted. On the other hand, if the protective switch 3 is in a closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, it is only necessary to make the first-direction magnetic force of the protective switch 3 less than the preset threshold to power off the household appliance and interrupt the working procedure of the household appliance.
[0040] Optionally, the magnetic blade component 7 includes a magnetic blade 9 and a spring 10. The magnetic blade 9 is electrically connected to the first end of the normally open terminal 8. When the second end of the normally open terminal 8 is electrically connected to the magnetic blade 9 under the action of a first-directional magnetic force, the second end of the normally open terminal 8 is electrically connected to the magnetic blade component 7, and the protection switch 3 is closed and turned on. The spring 10 has one end connected to the magnetic blade 9 and the other end connected to the fixed point of the first end of the normally open terminal 8. In this way, when the protection switch 3 is subjected to a first-directional magnetic force, the magnetic blade 9 is electrically connected to the second end of the normally open terminal 8 under the action of the first-directional magnetic force, so that the magnetic blade component 7 is electrically connected to the second end of the normally open terminal 8, and the protection switch 3 is closed and turned on. In the event that a child accidentally touches the power button of a household appliance, the household appliance is prevented from being powered off and the working procedure of the household appliance is prevented from being interrupted.
[0041] Optionally, when the magnetic force in the first direction is less than a preset threshold or the magnetic force in the second direction is greater than or equal to the magnetic force in the first direction, the second end of the normally open terminal 8 is electrically disconnected from the magnetic knife 9, the second end of the normally open terminal 8 is electrically disconnected from the magnetic knife component 7, and the protection switch 3 is disconnected. The second direction is opposite to the first direction. Specifically, the magnetic force in the first direction is less than the preset threshold, including the disappearance of the magnetic force in the first direction. In this way, on the one hand, when the protection switch 3 is subjected to the magnetic force in the first direction, the magnetic knife 9 is electrically connected to the second end of the normally open terminal 8 under the action of the magnetic force in the first direction, so that the magnetic knife component 7 is electrically connected to the second end of the normally open terminal 8, so that the protection switch 3 is closed and turned on. In the case where a child accidentally touches the power button of a household appliance, the household appliance is prevented from being powered off and the working program of the household appliance is prevented from being interrupted. On the other hand, if the protection switch 3 is in a closed state in an emergency and the home appliance needs to stop working, and it is inconvenient to unplug the socket, it is only necessary to make the magnetic force in the first direction of the protection switch 3 smaller than the preset threshold, or the magnetic force applied in the second direction opposite to the first direction is greater than or equal to the magnetic force in the first direction, so as to cut off the power of the home appliance and interrupt the working procedure of the home appliance.
[0042] Optionally, the magnetic blade 9 is made of one or more of iron, cobalt, and nickel. This facilitates the magnetic blade being attracted by the magnetic force in the first direction to electrically connect to the second end of the normally open terminal, thereby facilitating the closing and conduction of the protective switch 3. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the power button.
[0043] Optionally, the magnetic action module 6 includes an electromagnet. This facilitates the control module 5 to obtain power when the power switch is closed and on, and to control the magnetic action module 6 to generate a magnetic force, thereby closing and turning on the protection switch 3. Power is maintained while the protection switch 3 is closed and on. This prevents power outages and interruptions to the appliance's operating procedures if a child accidentally touches the power button. Furthermore, if, in an emergency, the protection switch 3 is closed and the appliance needs to stop operating, and unplugging the socket is inconvenient, the control module 5 can control the magnetic action module 6 to reduce or eliminate the magnetic force, thereby disconnecting the appliance and interrupting its operating procedures.
[0044] Optionally, the control module 5 includes a rectifier module. The rectifier module's input is AC power, and its output is DC power. The output is electrically connected to the magnetic interaction module 6, providing DC power to the magnetic interaction module 6. This facilitates stable operation of the protective switch 3, ensuring that the control module 5 maintains a stable power supply when the protective switch 3 is closed. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the power button.
[0045] Optionally, the protection switch 3 is disconnected when subjected to a magnetic force in a second direction. The household appliance further includes an unlocking magnet 11. The magnetic force of the unlocking magnet 11 is greater than or equal to the magnetic force of the magnetic action module 6. When the unlocking magnet 11 is in a preset unlocking area 18, the protection switch 3 is disconnected. The preset unlocking area 18 includes a side where the protection switch 3 is in a second direction, and the second direction is opposite to the first direction. Specifically, the magnetic force of the unlocking magnet 11 is greater than or equal to the maximum magnetic force of the magnetic action module 6. In this way, on the one hand, when a child accidentally touches the power button of the household appliance, the household appliance is prevented from being powered off and the working procedure of the household appliance is prevented from being interrupted. On the other hand, if the protection switch 3 is in a closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, it is only necessary for the unlocking magnet 11 to apply a magnetic force in a second direction opposite to the first direction to the protection switch 3 to disconnect the protection switch 3, thereby powering off the household appliance and interrupting the working procedure of the household appliance.
[0046] The second direction is opposite to the first direction. Specifically, the second direction can be the direction of the magnetic blade component 7 opposite to the normally open terminal 8. In this way, on the one hand, when a child accidentally touches the power button of the household appliance, the household appliance is prevented from being powered off and the working procedure of the household appliance is prevented from being interrupted. On the other hand, if the protection switch 3 is in a closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, it is only necessary to unlock the magnet 11 to apply a second direction magnetic force opposite to the first direction to the protection switch 3, so that the magnetic blade component 7 is electrically disconnected from the second end of the normally open terminal 8, thereby disconnecting the protection switch 3, and then the household appliance is powered off and the working procedure of the household appliance is interrupted.
[0047] Optionally, the magnetic knife switch 9 is closed in the first direction under the action of the magnetic force in the first direction, and the spring 10 is shortened relative to its original state due to the pressure of the magnetic knife switch 9. The magnetic knife switch 9 is disconnected in the second direction under the action of the magnetic force in the second direction, and the spring 10 is restored to its original state or extended relative to its original state due to the pulling force of the magnetic knife switch 9. In this way, on the one hand, when a child accidentally touches the power button of a household appliance, the household appliance is prevented from being powered off and the working process of the household appliance is prevented from being interrupted. On the other hand, if the protection switch 3 is in a closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, it is only necessary to unlock the magnet 11 to apply a magnetic force in the second direction opposite to the first direction to the protection switch 3, which is conducive to disconnecting the protection switch 3, thereby powering off the household appliance and interrupting the working process of the household appliance.
[0048] Optionally, the unlocking magnet 11 includes a permanent magnet and / or an unlocking electromagnet assembly. The unlocking electromagnet assembly includes an unlocking electromagnet and an unlocking power supply. Specifically, the permanent magnet includes one or more of a bar magnet, a horseshoe magnet, a needle magnet, a ring magnet, and a cylindrical magnet. In this way, when a child accidentally touches the power button of a household appliance, the household appliance is prevented from being powered off and the working procedure of the household appliance is prevented from being interrupted. If the protective switch is in a closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, the household appliance can be powered off and the working procedure of the household appliance can be interrupted.
[0049] Optionally, when the unlocking magnet 11 is outside the preset unlocking area 18, the unlocking magnet 11 maintains the on / off state between the magnetic blade member 7 and the normally open terminal 8. This prevents the protective switch 3 from being attracted and disconnected by the unlocking magnet 11 if a child accidentally touches the power button of the home appliance, thereby better preventing the protective switch 3 from being closed and on, thereby better preventing the home appliance from losing power and interrupting its operating procedures.
[0050] Optionally, the household appliance further includes a shell 12. The shell 12 includes a top cover 13 and a side panel 14. The power switch 2 is exposed from the outside of the side panel 14, the protection switch 3 is arranged on the inside of the top cover 13, and the control circuit 4 is arranged inside the shell 12. Specifically, the side panel 14 includes a front side panel, and the power switch 2 is exposed from the outside of the front side panel. In this way, the power switch 2 is exposed from the shell 12, which is convenient for the user to control the power supply of the household appliance. The protection switch 3 and the control circuit 4 are arranged in the shell, which helps to prevent children from touching them and avoid safety hazards. At the same time, when a child accidentally touches the power button of the household appliance, the household appliance is prevented from being powered off and the working program of the household appliance is prevented from being interrupted.
[0051] Optionally, the top cover 13 is disposed in the second direction of the protection switch 3. Specifically, the top cover 13 is adjacent to one side of the magnetic blade component 7 of the protection switch 3. More specifically, the top cover 13 is adjacent to one side of the magnetic blade 9 of the protection switch 3. This helps prevent the top cover 13 from interfering with the unlocking magnet 11 and disconnecting the protection switch 3, thereby effectively powering off the home appliance. It also helps prevent children from touching the device, thus avoiding safety hazards. Furthermore, if a child accidentally touches the power button of a home appliance, the home appliance is prevented from being powered off, preventing the appliance's operating procedures from being interrupted.
[0052] Optionally, the top cover 13 is made of a non-metallic material. Specifically, the top cover 13 can be made of plastic. This prevents the top cover 13 from interfering with the unlocking magnet 11 and disconnecting the protective switch 3 in an emergency situation where unplugging the socket is inconvenient. This effectively shuts off the power to the appliance. Furthermore, if a child accidentally touches the power button, the appliance is prevented from shutting off and interrupting its operation.
[0053] Optionally, the preset unlocking area 18 is provided on the outside of the top cover 13, the side panel 14 is made of a magnetic metal, and the unlocking magnet 11 is adsorbed on the outside of the side panel 14 or placed in the preset unlocking area 18. Specifically, the material of the side panel 14 can be one or more of iron, cobalt, and nickel. In this way, the unlocking magnet 11 is better adsorbed on the side panel and is not easily noticed by children. The unlocking magnet 11 can be easily removed. If the protection switch 3 is in a closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, it is helpful to place the unlocking magnet 11 in the preset unlocking area to cut off the power to the household appliance and interrupt the working procedure of the household appliance. At the same time, it prevents children from using the unlocking magnet 11 to cut off the power to the household appliance.
[0054] Optionally, the household appliance includes a washing machine, a clothes dryer, or an oven. This helps protect a variety of household appliances, as children are prone to accidentally pressing buttons on washing machines, clothes dryers, or ovens while they are in operation. If a child accidentally presses the power button on a household appliance, the appliance is prevented from being powered off, thus preventing the appliance's operation from being interrupted.
[0055] Optionally, the appliance also includes a child lock combination key. This key is electrically connected to the control module 5 and is located outside the housing 12. It closes and opens when an external force is applied. When the key is closed, the control module 4 loses control of all buttons except the power switch 2. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the power button.
[0056] Combine Figure 1-6 and Figure 8As shown, an embodiment of the present disclosure provides a household appliance, including a power supply, a switching circuit 1, a control circuit 4, and an unlocking switch 15. The power supply has a neutral line 16 and a live line 17. The switching circuit 1 is connected between the neutral line 16 and the live line 17 and includes a power switch 2 and a protection switch 3 connected in parallel. The power switch 2 closes and turns on under the action of an external force, while the protection switch 3 closes and turns on under the action of a first-direction magnetic force. The control circuit 4 is connected in series with the switching circuit 1 between the neutral line 16 and the live line 17 and includes a control module 5 and a magnetic action module 6. The magnetic action module 6 is disposed on one side of the protection switch 3 in the first direction and generates a magnetic force under the control of the control module 5. The control module 5 receives power when the power switch 2 is closed and turns on, and controls the magnetic action module 6 to generate a magnetic force to close and turn on the protection switch 3. Power is maintained while the protection switch 3 is closed and turns on. The protection switch 3 opens when the first-direction magnetic force is less than a preset threshold. The unlocking switch 15 is connected in series between the control module 5 and the magnetic action module 6 and opens when an external force is applied.
[0057] The household appliance provided by the embodiment of the present disclosure can, when an adult user presses the power switch, close the power switch 2 and turn it on, so that the control module 5 is powered, and the control module 5 controls the magnetic action module 6 to generate a magnetic force to close and turn on the protection switch 3. In the event that a child accidentally touches the power switch, causing the power switch 2 to turn off from closed to on, the control module 5 is kept powered because the protection switch 3 is still in the closed and on state. Since the control module 5 is still powered, the magnetic action module 6 is controlled to maintain the magnetic force, thereby keeping the protection switch 3 continuously closed and on, and the control module 5 is still powered. In this way, if a child accidentally touches the power button of the household appliance, the household appliance is prevented from being powered off, and the working process of the household appliance is avoided from being interrupted. At the same time, if the protection switch 3 is in the closed state in an emergency and the household appliance needs to stop working, it is convenient to disconnect the protection switch 3 in a better way, so that the household appliance can be powered off better when it is inconvenient to unplug the socket.
[0058] Optionally, the protection switch 3 is disconnected when the magnetic force in the first direction is less than a preset threshold, including when the magnetic force in the first direction of the protection switch 3 disappears. Specifically, when the unlocking switch 15 is disconnected by an external force, the magnetic force in the first direction of the protection switch 3 disappears. In this way, if a child accidentally touches the power button of a household appliance, the household appliance is prevented from being powered off, and the operation of the household appliance is prevented from being interrupted. At the same time, if the protection switch is in the closed state in an emergency and the household appliance needs to stop working, and it is inconvenient to unplug the socket, it is beneficial to better disconnect the protection switch 3, thereby effectively powering off the household appliance.
[0059] Optionally, the unlocking switch 15 comprises an electromagnetic relay or a knife switch. This prevents power outages and interruptions to the appliance's operation if a child accidentally touches the appliance's power button. Furthermore, if the protective switch is closed in an emergency and the appliance needs to stop, disconnecting the protective switch 3 is more effective, effectively shutting off the appliance's power.
[0060] Optionally, the household appliance further includes a housing 12. The housing 12 is provided with a switch slot and a baffle, with an unlocking switch 15 disposed in the switch slot and covered by the baffle. Thus, because the unlocking switch 15 is concealed by the baffle, it is not easily visible to children. This prevents the household appliance from powering off and interrupting its operation if a child accidentally touches the power button. This facilitates better disconnection of the protection switch 3, thereby effectively shutting off the household appliance. Furthermore, it prevents children from accidentally touching the unlocking switch 5 and causing the household appliance to power off.
[0061] Optionally, the household appliance includes a washing machine, a clothes dryer, or an oven. This helps protect a variety of household appliances, as children are prone to accidentally pressing buttons on washing machines, clothes dryers, or ovens while they are in operation. If a child accidentally presses the power button on a household appliance, the appliance is prevented from being powered off, thus preventing the appliance's operation from being interrupted.
[0062] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A household appliance comprising a power supply having a neutral line (16) and a live line (17), characterized in that: Also includes: A switch circuit (1) is connected between the neutral line (16) and the live line (17), and comprises a power switch (2) and a protection switch (3) connected in parallel, wherein the power switch (2) is closed and turned on under the action of an external force, and the protection switch (3) is closed and turned on under the action of a magnetic force in a first direction; A control circuit (4) is connected in series with the switch circuit (1) between the neutral line (16) and the live line (17), and comprises a control module (5) and a magnetic action module (6), wherein the magnetic action module (6) is arranged on one side of the protection switch (3) in the first direction and generates a magnetic force under the control of the control module (5); Wherein, the control module (5) obtains power when the power switch (2) is closed and turned on, and controls the magnetic action module (6) to generate magnetic force to close and turn on the protection switch (3), and is kept powered when the protection switch (3) is closed and turned on; The protection switch (3) is disconnected when subjected to a magnetic force in a second direction, and the household appliance further comprises: An unlocking magnet (11), wherein the magnetic force of the unlocking magnet (11) is greater than or equal to the magnetic force of the magnetic action module (6), and when the unlocking magnet (11) is in a preset unlocking area (18), the protection switch (3) is disconnected.
2. The household appliance according to claim 1, wherein: The protection switch (3) comprises: Magnetic blade component (7); and, A normally open terminal (8) is provided in a first direction of the magnetic blade component (7), a first end of the normally open terminal (8) is electrically connected to the magnetic blade component (7), and when subjected to a magnetic force in the first direction, a second end of the normally open terminal (8) is electrically connected to the magnetic blade component (7), and the protection switch (3) is closed and turned on.
3. The household appliance according to claim 2, characterized in that: The magnetic blade component (7) comprises: A magnetic knife gate (9) is electrically connected to the first end of the normally open terminal (8); under the action of a magnetic force in a first direction, the second end of the normally open terminal (8) is electrically connected to the magnetic knife gate (9); the second end of the normally open terminal (8) is electrically connected to the magnetic knife gate component (7); and the protection switch (3) is closed and turned on; A spring (10) has one end connected to the magnetic switch (9) and the other end connected to the first end of the normally open terminal (8).
4. The household appliance according to claim 3, characterized in that: The material of the magnetic blade (9) includes one or more of iron, cobalt, and nickel.
5. The household appliance according to claim 1, wherein: The magnetic action module (6) comprises an electromagnet.
6. The household appliance according to claim 1, wherein: The unlocking magnet (11) comprises: permanent magnets; and / or, The unlocking solenoid assembly includes an unlocking solenoid and an unlocking power supply.
7. The household appliance according to any one of claims 1 to 6, characterized in that: The protection switch (3) is disconnected when the magnetic force in the first direction is less than a preset threshold value, and the household appliance further comprises: An unlocking switch (15) is connected in series between the control module (5) and the magnetic action module (6), and the unlocking switch (15) is disconnected when subjected to an external force.
8. The household appliance according to claim 7, characterized in that: Also includes: The housing (12) is provided with a switch slot and a baffle, and the unlocking switch (15) is arranged in the switch slot and covered by the baffle.
9. The household appliance according to any one of claims 1 to 6, characterized in that: The household appliance includes a washing machine, a clothes dryer or an oven.
Citation Information
Patent Citations
Zero standby power consumption control circuit for household electric appliance
CN2888508Y