Household electrical appliance

Abstract

The household appliance comprises a main machine, two microswitches and a controller, the main machine comprises a machine shell, the machine shell is provided with a first side wall and a second side wall, when the first side wall is supported by an external supporting face, the main machine is in a vertical placement state, and when the second side wall is supported by the external supporting face, the main machine is in a horizontal placement state. The two micro-switches are arranged corresponding to the first side wall and the second side wall respectively, when the host is in a vertical state, the micro-switch corresponding to the first side wall is triggered by the external supporting surface to be switched on, and when the host is in a horizontal state, the micro-switch corresponding to the second side wall is triggered by the external supporting surface to be switched on. The controller is arranged in the machine shell, electrically connected with the two microswitches and used for controlling the household appliances to work or stop working according to the on-off states of the two microswitches. According to the technical scheme, the structural design difficulty of the household appliance can be reduced, and the manufacturing cost is saved.

Description

Technical Field

[0001] The present application relates to the technical field of household electrical appliances, and in particular to a household electrical appliance. Background Art

[0002] In the related art, home appliances such as heaters or fan heaters usually require a specific placement state to work safely and normally. In order to ensure that the home appliances are in the correct placement state, these home appliances are usually equipped with a photoelectric dump switch, which can obtain the placement state of the home appliances, and then feedback in an abnormal dumping state to stop the home appliances from working, thereby preventing potential safety risks. However, the current photoelectric dump switch needs to rely on more complex circuit design and control logic, which increases the difficulty of designing and manufacturing home appliances. Utility Model Content

[0003] The embodiment of the present application provides a household appliance, which can reduce the difficulty of structural design of the household appliance and save manufacturing costs.

[0004] The present application provides a household appliance, which includes:

[0005] A host, comprising a housing, wherein the housing has a first side wall and a second side wall, wherein when the first side wall is supported by an external support surface, the host is in the vertical placement state, and when the second side wall is supported by the external support surface, the host is in the horizontal placement state;

[0006] two micro switches, respectively arranged corresponding to the first side wall and the second side wall, wherein when the host is in the vertical placement state, the micro switch corresponding to the first side wall is triggered and turned on by the external support surface, and when the host is in the horizontal placement state, the micro switch corresponding to the second side wall is triggered and turned on by the external support surface; and

[0007] The controller is arranged in the housing and is electrically connected to the two micro switches, and is used for controlling the home appliance to work or stop working according to the on and off states of the two micro switches.

[0008] In some embodiments, the micro switch disposed on the first side wall is a first micro switch, and the micro switch disposed on the second side wall is a second micro switch;

[0009] Wherein, when the first micro switch is turned on and the second micro switch is turned off, the controller controls the household appliance to work in a vertical placement state;

[0010] When the first micro switch is turned off and the second micro switch is turned on, the controller controls the household appliance to work in a horizontal placement state;

[0011] When the first micro switch and the second micro switch are both turned on or off, the controller controls the household appliance to stop working.

[0012] In some embodiments, the micro switch disposed on the first side wall is a first micro switch, and the micro switch disposed on the second side wall is a second micro switch; there are multiple first micro switches, and the multiple first micro switches are arranged at intervals on the first side wall, and / or there are multiple second micro switches, and the multiple second micro switches are arranged at intervals on the second side wall;

[0013] Wherein, when at least one of the first micro switches is turned on and each of the second micro switches is turned off, the controller controls the household appliance to work in a vertical placement state;

[0014] When all the first micro switches are turned off and at least one of the second micro switches is turned on, the controller controls the household appliance to work in a horizontal placement state;

[0015] When each of the first micro switches and each of the second micro switches are turned off, or when at least one of the first micro switches is turned on and at least one of the second micro switches is turned on, the controller controls the household appliance to stop working.

[0016] In some embodiments, the micro switch disposed on the first side wall is a first micro switch, and the micro switch disposed on the second side wall is a second micro switch; there are multiple first micro switches, and the multiple first micro switches are arranged at intervals on the first side wall, and / or there are multiple second micro switches, and the multiple second micro switches are arranged at intervals on the second side wall;

[0017] Wherein, when each of the first micro switches is turned on and each of the second micro switches is turned off, the controller controls the household appliance to work in a vertical placement state;

[0018] When each of the first micro switches is turned off and each of the second micro switches is turned on, the controller controls the household appliance to work in a horizontal placement state;

[0019] When at least one of the first micro switches is turned on and at least one of the second micro switches is turned on, or when at least one of the first micro switches is turned off and at least one of the second micro switches is turned off, the controller controls the household appliance to stop working.

[0020] In some embodiments, for each of the micro switches, the household appliance further includes a pull-up resistor, and the micro switch includes a first terminal and a second terminal;

[0021] The first terminal of each micro switch is connected to the power supply through the pull-up resistor, the first terminal is electrically connected to a detection terminal of the controller, and the second terminal is grounded.

[0022] In some embodiments, for each of the micro switches, the household appliance further includes a pull-down resistor, and the micro switch includes a first terminal and a second terminal;

[0023] The first terminal of each micro switch is connected to a power source, the second terminal is grounded through the pull-down resistor, and the second terminal is electrically connected to a detection terminal of the controller.

[0024] In some embodiments, the host further includes an alarm electrically connected to the controller, and the alarm is used to send an alarm signal when both of the micro switches are turned on or off.

[0025] In some of the embodiments, the alarm includes at least one of a signal light, a buzzer, and a voice broadcast device.

[0026] In some embodiments, the first micro switch is located in the middle of the first side wall along the width direction; and / or

[0027] The second micro switch is located at a middle portion of the second side wall along a width direction.

[0028] In some embodiments, the first side wall and the second side wall are provided with through holes, the through holes communicate with the inner and outer sides of the housing, the micro switch is located in the housing, and for each of the micro switches, the host further comprises a trigger member, one of the trigger members is movably disposed in one of the through holes, and one side of the trigger member is disposed in contact with the elastic contact of the micro switch;

[0029] Wherein, when the trigger component is not subjected to external force, at least part of the trigger component is exposed outside the housing, and the micro switch is in an off state; when the trigger component is pressed by an external supporting surface, the trigger component presses the elastic contact of the micro switch so that the micro switch is triggered to turn on.

[0030] In some embodiments, the trigger component includes a first abutment portion, a connecting rod and a second abutment portion connected in sequence, the connecting rod is slidably arranged in the through hole, the first abutment portion is located in the housing, and the end of the first abutment portion facing away from the connecting rod is in contact with the elastic contact of the micro switch, and the second abutment portion is located outside the housing for pressing against an external support surface.

[0031] In some embodiments, the central axis of the first abutting portion, the central axis of the connecting rod, the central axis of the second abutting portion, and the central axis of the elastic contact are coaxially arranged in the axial direction of the corresponding through hole;

[0032] And / or, a cross section of the first abutting portion and a cross section of the second abutting portion are larger than a diameter of the through hole.

[0033] In some embodiments, the outer surface of the first side wall is concavely formed to form a first limiting groove;

[0034] When the micro switch corresponding to the first side wall is triggered and turned on, the second limiting portion of the trigger component is embedded in the first limiting groove, and the surface of the second abutting portion facing away from the bottom of the first limiting groove is flush with the outer surface of the first side wall.

[0035] In some embodiments, the outer surface of the second side wall is concavely formed to form a second limiting groove;

[0036] When the micro switch corresponding to the second side wall is triggered and turned on, the second limiting portion of the trigger component is embedded in the second limiting groove, and the surface of the second abutting portion facing away from the bottom of the second limiting groove is flush with the outer surface of the second side wall.

[0037] In some embodiments, the first side wall and the second side wall are both provided with a through hole, the through hole connects the inner and outer sides of the housing, the micro switch is movably arranged in the through hole, and the host further comprises a pressing member arranged in the housing, the pressing member contacts the elastic contact of the micro switch;

[0038] Wherein, when the micro switch is not subjected to external force, at least part of the micro switch is exposed outside the housing, and the micro switch is in an off state; when the micro switch is pressed by an external supporting surface, the micro switch moves toward the pressing member, and the pressing member presses against the elastic contact, so that the micro switch is triggered to turn on.

[0039] In the household appliance based on the present application, two micro switches are set, and the two micro switches are triggered and turned on by the external supporting surface when the host is in a vertical placement state and a horizontal placement state respectively. In this way, the controller can obtain the placement state of the host according to the on-off state of the micro switch, and control the household appliance to work or stop working accordingly, thereby ensuring that the household appliance is used in a vertical placement state or a horizontal placement state, which can effectively avoid the safety hazards caused by the household appliance working in an abnormal tilting state. The micro switch is a mechanical trigger switch. Compared with the traditional photoelectric tilting switch, the micro switch has a lower failure rate and higher reliability. There is no need to set up additional complex circuits and control logic, so as to reduce the overall design difficulty of the household appliance and effectively reduce the manufacturing cost of the household appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0041] Figure 1 This is a schematic diagram of the internal structure of the host of the household appliance of this application in a vertical position;

[0042] Figure 2 This is a schematic diagram of the internal structure of the host of the household appliance of this application in a horizontal position;

[0043] Figure 3 This is a structural schematic diagram of the micro switch of the household appliance of the present application in the off state;

[0044] Figure 4 This is a structural schematic diagram of the micro switch of the household appliance of the present application in the on state;

[0045] Figure 5 A schematic diagram of modules in one embodiment of the household appliance of the present application;

[0046] Figure 6 This is a schematic diagram of modules in yet another embodiment of the household appliance of the present application.

[0047] Description of Figure Numbers:

[0048] 100, household electrical appliance; 10, host; 11, housing; 111, first side wall; 1111, first limiting groove; 112, second side wall; 1121, second limiting groove; 11a, through hole; 12, trigger member; 121, first abutting portion; 122, connecting rod; 123, second abutting portion; 20, micro switch; 20A, first micro switch; 20B, second micro switch; 21, first terminal; 22, second terminal; 23, elastic contact; 24, housing; 30, controller; 31, detection end; 40, pull-up resistor; 50, pull-down resistor; 60, alarm.

[0049] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] The embodiment of the present application provides a household appliance 100, wherein the household appliance 100 is a heater or an electric fan, etc., which is not specifically limited in the embodiment of the present application. Specifically, a heater is a device that generates heat by electric heating or gas heating, thereby achieving a heating effect. An electric fan may include an electric fan that blows cold air and a fan that blows hot air.

[0052] The following describes in detail the household appliance 100 as a heater.

[0053] Please refer to Figure 1 and Figure 2 In one embodiment, the home appliance 100 includes a host 10 and a controller 30. The host 10, as the main body part of the home appliance 100, can generate heat and flow the heat to the use environment through a medium such as air to provide heating to the use environment and the user, and the controller 30 can control the operation and shutdown of the heating of the host 10, and adjust the heating efficiency of the host 10.

[0054] The host 10 includes a housing 11, a heating component (not shown) and a fan (not shown), etc. The outer contour shape of the housing 11 may include but is not limited to a cuboid or a prism, etc. And the material of the housing 11 may include but is not limited to at least one of metal and plastic. In the embodiment of the present application, the shape and material of the housing 11 are not specifically limited. The housing 11 has a receiving cavity and a heat radiation port, and the heat radiation port is connected to the receiving cavity. The heating component, the controller 30 and the fan can be arranged in the receiving cavity, which can reduce the probability of damage to the heating component and the controller 30, so that the heating component and the controller 30 can have a longer service life, and then the household appliance 100 can have a longer service life. In this way, after the heating component generates heat, the heat can be transferred to the air, so that the air becomes hot air, and then the hot air flows to the heat radiation port, and flows from the heat radiation port to the use environment to heat the use environment and the user.

[0055] In addition, the housing 11 includes a first side wall 111 and a second side wall 112. When the housing 11 is in the shape of a cuboid, the first side wall 111 and the second side wall 112 may be two adjacent side walls. When the housing 11 is in the shape of a prism, the first side wall 111 and the second side wall 112 may be two spaced-apart side walls.

[0056] When the first side wall 111 is supported by an external supporting surface such as the ground, the host 10 is in a vertical position. At this time, the household appliance 100 is used as a heater, and the direction of the heat radiation port of the household appliance 100 is adjusted to a horizontal direction so that the hot air can be blown directly to the user to better meet the user's heating needs.

[0057] When the second side wall 112 is supported by an external support surface such as the ground, the host 10 is in a horizontal position. At this time, the home appliance 100 is used as a baseboard heater, and the direction of the heat radiation port of the home appliance 100 is adjusted to be vertically upward, which helps the hot air to flow upward better in the use environment, realizes the natural convection of the hot air, and improves the overall heating effect of the use environment.

[0058] The heating component may include a heating element and a fin. The heating element and the controller 30 may be connected by a conductive wire, and the controller 30 may control the opening and closing of the heating element and adjust the heating power of the heating element by the conductive wire. The heat generated by the heating element may be transferred to the fins, and heat exchange is achieved through the contact between the fins and the air. Exemplarily, the form of the heating element may be, but is not limited to, a carbon fiber heating element, a halogen heating element, a quartz tube heating element, a metal tube heating element, and an electric heating wire heating element. In the embodiment of the present application, the specific form of the heating element is not limited.

[0059] In the related art, in order to ensure that the home appliance 100 is in a correctly placed state, these home appliances 100 are usually equipped with a photoelectric dump switch, which can detect the placement state of the home appliance 100, and then feedback in an abnormal dumping state to stop the home appliance from working, thereby preventing potential safety risks. However, the current photoelectric dump switch needs to rely on relatively complex circuit design and control logic, which increases the difficulty of designing and manufacturing the home appliance 100.

[0060] Based on the above technical problems, the household appliance 100 of the embodiment of the present application further includes two micro switches 20, and the two micro switches 20 are respectively arranged corresponding to the first side wall 111 and the second side wall 112. When the host 10 is in a vertical placement state, the micro switch 20 corresponding to the first side wall 111 is triggered and turned on by the external support surface. When the host 10 is in a horizontal placement state, the micro switch 20 corresponding to the second side wall 112 is triggered and turned on by the external support surface. At the same time, the two micro switches 20 are also electrically connected to the controller 30, so that the controller 30 can control the household appliance 100 to work or stop working according to the on-off state of the two micro switches 20.

[0061] Combined with reference Figure 3 and Figure 4 , wherein the micro switch 20 includes a housing 24, an elastic contact 23 provided on the housing 24, a first terminal 21 and a second terminal 22. When the elastic contact 23 is pressed, the first terminal 21 and the second terminal 22 are connected, so that the micro switch 20 is in a conducting state. When the elastic contact 23 is not pressed by an external force, the first terminal 21 and the second terminal 22 are disconnected, and the micro switch 20 is in an off state. It can be understood that the external support surface can directly contact the elastic contact 23 to generate a pressing force, thereby triggering the micro switch 20 to be turned on. Alternatively, the external support surface can indirectly contact the elastic contact 23 through other movable parts, which can also generate a pressing force, thereby triggering the micro switch 20 to be turned on.

[0062] It is understandable that, except for the horizontal placement state and the vertical placement state, other states of the household appliance 100 can be considered as abnormal tipping states, and the abnormal tipping states include the side-lying state, the inverted state, and the upside-down state.

[0063] In the side-lying state, the heat radiation port is oriented horizontally, and the third side wall or the fourth side wall adjacent to the heat radiation port is supported by an external support surface such as the ground. Specifically, the third side wall is adjacent to both the first side wall 111 and the second side wall 112, and the fourth side wall is also adjacent to both the first side wall 111 and the second side wall 112. In the inverted state, the first side wall 111 faces upward, and the fifth side wall disposed opposite to the first side wall 111 is supported by an external support surface such as the ground. In the inverted state, the second side wall 112 faces upward, and the heat radiation port faces a support such as the ground.

[0064] In the household appliance 100 based on the present application, two micro switches 20 are provided, and the two micro switches 20 are triggered to conduct by an external support surface when the host 10 is in a vertical placement state and when the host 10 is in a horizontal placement state, respectively. In this way, the controller 30 can obtain the placement state of the host 10 according to the on-off state of the micro switch 20, and control the household appliance 100 to work or stop working accordingly, thereby ensuring that the household appliance 100 is used in a vertical placement state or a horizontal placement state, which can effectively avoid the safety hazard caused by the use of the household appliance 100 in an abnormal tipping state. Moreover, the micro switch 20 is a mechanical trigger switch. Compared with the traditional photoelectric tipping switch, the micro switch 20 has a lower failure rate and higher reliability, and does not need to set up additional complex circuits and control logic, thereby reducing the overall design difficulty of the household appliance 100 and effectively reducing the manufacturing cost of the household appliance 100.

[0065] Reference Figures 1 to 3 In one embodiment, the micro switch 20 disposed on the first side wall 111 is a first micro switch 20A, and the micro switch 20 disposed on the second side wall 112 is a second micro switch 20B.

[0066] When the first micro switch 20A is turned on and the second micro switch 20B is turned off, it indicates that the first side wall 111 is supported by the external support surface, and the second side wall 112 is not supported by the external support surface, that is, the host 10 is in a vertical placement state, so the controller 30 controls the home appliance 100 to work in the vertical placement state and be used as a heater. At this time, the controller 30 drives the fan to start rotating to generate airflow, sucking the surrounding air into the housing 11, and the air becomes hot after passing through the heating component, and then is ejected horizontally from the heat radiation port, so that the hot air can be directly blown to the user and spread to the surrounding environment, so that the home appliance 100 can be used as a heater.

[0067] When the first micro switch 20A is turned off and the second micro switch 20B is turned on, it indicates that the second side wall 112 is supported by the external support surface, and the first side wall 111 is not supported by the external support surface, that is, the host 10 is in a horizontal placement state, so the controller 30 controls the home appliance 100 to work in a horizontal placement state and be used as a skirting. At this time, the controller 30 controls the heating component to heat it up, and the heated air becomes light and rises upward to form a hot air flow. This convection causes the surrounding cold air to be sucked into the bottom, and after being heated, it is released again into the surrounding environment, forming a circulating flow of air, so that the home appliance 100 can be used as a skirting heater.

[0068] When the first micro switch 20A and the second micro switch 20B are both turned on or turned off, the controller 30 controls the home appliance 100 to stop working. In this way, when the home appliance 100 is in an abnormal tilting state such as lying on its side, standing upside down, or buckling upside down, that is, the first side wall 111 and the second side wall 112 are not supported by the external support surface, so that the first micro switch 20A and the second micro switch 20B are both in the off state, and then the controller 30 determines that the heater is in an abnormal tilting state, and the controller 30 issues an instruction to cut off the heating element of the heating component, so that the home appliance 100 stops working, thereby ensuring safety in use. In addition, when the first micro switch 20A and the second micro switch 20B are turned on at the same time by an external force (such as a human hand), or when one of the first micro switch 20A and the second micro switch 20B is triggered to turn on by the external support surface, the other of the first micro switch 20A and the second micro switch 20B is triggered to turn on by an external force (such as a human hand). The controller 30 also determines that the above situation is an abnormal tipping state. The controller 30 issues an instruction to cut off the heating element and the fan of the heating component so that the household appliance 100 stops working, thereby ensuring safety in use.

[0069] In another embodiment, the number of the first micro switches 20A can be single or multiple. When there are multiple first micro switches 20A, multiple first micro switches 20A are arranged at intervals on the first side wall 111, and the number of the second micro switches 20B can be single or multiple. When there are multiple second micro switches 20B, multiple second micro switches 20B are arranged at intervals on the second side wall 112. The provision of multiple first micro switches 20A and multiple second micro switches 20B can further improve the accuracy of obtaining the placement status of the home appliance 100.

[0070] Among them, when at least one first microswitch 20A is turned on and each second microswitch 20B is turned off, it indicates that part of the first side wall 111 is supported by the external support surface, and the second side wall 112 is not supported by the external support surface. In this way, even if the first side wall 111 is partially tilted and not supported by the external support surface, the controller 30 will control the household appliance 100 to work in a vertical placement state, so as to increase the use scenarios suitable for the vertical placement state and facilitate flexible use.

[0071] When all the first micro switches 20A are turned off and at least one of the second micro switches 20B is turned on, it indicates that the second side wall 112 is supported by the external support surface. Even if the second side wall 112 is partially tilted and not supported by the external support surface, the controller 30 will control the household appliance 100 to operate in a horizontal placement state to increase the usage scenarios suitable for the horizontal placement state and facilitate flexible use.

[0072] When each of the first micro switches 20A and each of the second micro switches 20B are turned off, or at least one of the first micro switches 20A is turned on, and at least one of the second micro switches 20B is turned on, the controller 30 controls the home appliance 100 to stop working. In this way, when the home appliance 100 is in an abnormal tilting state such as lying on its side, standing upside down, or buckling upside down, that is, the first side wall 111 and the second side wall 112 are not supported by the external support surface, so that the first micro switch 20A and the second micro switch 20B are both in the off state. At this time, the controller 30 determines that the heater is in an abnormal tilting state, and the controller 30 issues an instruction to cut off the heating element of the heating component to stop the home appliance 100 from working, thereby ensuring safety in use. Or, by external force (such as a human hand), the first micro switch 20A and the second micro switch 20B are partially turned on or fully turned on at the same time, and the controller 30 also determines that this situation is an abnormal tilting state, and takes the same measures to cut off the operation of the heating component to ensure safety in use.

[0073] In another embodiment, multiple first micro switches 20A and multiple second micro switches 20B are set. When each first micro switch 20A is turned on and each second micro switch 20B is turned off, the controller 30 controls the home appliance 100 to work in a vertical placement state. In this way, it is necessary to ensure that all first micro switches 20A are in the on state and all second micro switches 20B are in the off state. At this time, it indicates that the first side wall 111 is completely supported by the external support surface, and the second side wall 112 is not supported by the external support surface. Only then is it determined that the host 10 is in a vertical placement state, so that the controller 30 controls the home appliance 100 to work in a vertical placement state to ensure the stability of the first side wall 111 and the external support surface in the vertical placement state, so as to improve the safety of use.

[0074] When all the first micro switches 20A are turned off and all the second micro switches 20B are turned on, the controller 30 controls the home appliance 100 to work in the horizontal placement state. In this way, it is necessary to ensure that all the second micro switches 20B are in the on state, indicating that the second side wall 112 is fully supported by the external support surface, and the first side wall 111 is not supported by the external support surface, so as to determine that the host 10 is in the horizontal placement state, and thus the controller 30 controls the home appliance 100 to work in the horizontal placement state, so as to ensure the stability of the second side wall 112 and the external support surface in the horizontal placement state, so as to improve the safety of use.

[0075] When at least one first micro switch 20A is turned on and at least one second micro switch 20B is turned on, or when at least one first micro switch 20A is turned off and at least one second micro switch 20B is turned off, the controller 30 controls the home appliance 100 to stop working. In this way, when the home appliance 100 is in an abnormal tilting state such as lying on its side, standing upside down, or buckling upside down, that is, the first side wall 111 and the second side wall 112 are not supported by the external support surface, so that the first micro switch 20A and the second micro switch 20B are both in the off state, and then the controller 30 determines that the heater is in an abnormal tilting state, and the controller 30 issues a command to cut off the heating element of the heating component, so that the home appliance 100 stops working, thereby ensuring safety in use. In addition, when the first micro switch 20A and the second micro switch 20B are partially or fully turned on at the same time by external force (such as a human hand), or when one of the first micro switch 20A and the second micro switch 20B is triggered to turn on by an external support surface, and the other of the first micro switch 20A and the second micro switch 20B is triggered to turn on by an external force (such as a human hand), the controller 30 also determines that this situation is an abnormal tipping state, and the controller 30 issues a command to cut off the heating element of the heating component and the fan operation, so that the household appliance 100 stops working, thereby ensuring safety in use.

[0076] Combined with reference Figure 5 Optionally, for each micro switch 20, the household appliance 100 further includes a pull-up resistor 40, and the first terminal 21 of each micro switch 20 is connected to the power supply through a pull-up resistor 40, and the first terminal 21 is electrically connected to a detection terminal 31 of the controller 30, and the second terminal 22 is grounded. The detection terminal 31 here can be an input / output port (Input / Output, IO) of the controller 30. In this configuration, when the elastic contact 23 of the micro switch 20 is not subjected to external force, the first terminal 21 and the second terminal 22 are disconnected. At this time, since the pull-up resistor 40 is connected to the power supply, the detection terminal 31 of the controller 30 will receive a high-level signal due to the pull-up effect of the pull-up resistor 40. On the contrary, when the elastic contact 23 of the micro switch 20 is subjected to external force so that the first terminal 21 and the second terminal 22 are connected, the detection terminal 31 of the controller 30 will be directly grounded through the micro switch 20 and detect a low-level signal. In this way, the controller 30 can effectively determine whether the micro switch 20 is in the on state or the off state according to whether the detection end 31 receives a high level signal or a low level signal.

[0077] Reference Figure 6In yet another embodiment, for each micro switch 20, the household appliance 100 further includes a pull-down resistor 50, the first terminal 21 of each micro switch 20 is connected to the power supply, the second terminal 22 is grounded through the pull-down resistor 50, and the second terminal 22 is electrically connected to the detection terminal 31 of the controller 30. In this configuration, when the elastic contact 23 of the micro switch 20 is not subjected to external force, the first terminal 21 and the second terminal 22 are disconnected, at which time the detection terminal 31 of the controller 30 is grounded through the pull-down effect of the pull-down resistor 50, and the detection terminal 31 of the controller 30 will receive a low-level signal. On the contrary, when the elastic contact 23 of the micro switch 20 is subjected to external force so that the first terminal 21 and the second terminal 22 are connected, the voltage at the detection terminal 31 of the controller 30 will be equal to the voltage across the pull-down resistor 50, so that the detection terminal 31 receives a high-level signal. In this way, the controller 30 can effectively determine whether the micro switch 20 is in the on state or the off state according to whether the detection end 31 receives a high level signal or a low level signal, thereby determining whether the micro switch 20 is in the on state or the off state, and controlling it according to the on state and the off state.

[0078] See also Figure 1-2 Optionally, since the first micro switch 20A needs to be triggered and turned on by an external support surface, the first micro switch 20A is located in the middle of the first side wall 111 in the width direction. In this way, when the middle of the width direction of the first side wall 111 is supported by the external support surface, the first micro switch 20A will be turned on, and the controller 30 will perform corresponding control according to the conduction state of the first micro switch 20A, thereby achieving precise control. Similarly, the second micro switch 20B is located in the middle of the width direction of the second side wall 112. In this way, when the middle of the width direction of the second side wall 112 is supported by the external support surface, the second micro switch 20B will be turned on, and the controller 30 will perform corresponding control according to the conduction state of the second micro switch 20B, thereby achieving precise control.

[0079] In the above embodiment, the host 10 also includes an alarm 60 electrically connected to the controller 30, and the alarm 60 is used to send an alarm signal when both micro switches 20 are turned on or off. In this way, by sending an alarm signal, the user can quickly understand the placement status of the home appliance 100. Further, the alarm 60 includes at least one of a signal light, a buzzer, and a voice broadcast device. Among them, the signal light is a light that reminds the user by lighting up, the buzzer is a device that reminds the user by buzzing, and the voice broadcast device is a device that reminds the user by voice broadcasting with human voice. The user can be reminded by one or more of the above methods, so that the user can understand the placement status of the home appliance 100 in time.

[0080] The specific triggering method of the micro switch 20 is introduced below:

[0081] Reference Figures 1 to 3 In some structural forms, the first side wall 111 and the second side wall 112 are both provided with through holes 11a, and these through holes 11a connect the inside and outside of the housing 11. The micro switch 20 is arranged inside the housing 11. Each micro switch 20 has a trigger member 12 corresponding thereto. The trigger member 12 is arranged in the through hole 11a, and one side thereof contacts the elastic contact 23 of the micro switch 20.

[0082] When the trigger member 12 is not subjected to external force, at least part of the trigger member 12 will be exposed outside the housing 11, and the micro switch 20 is in an off state. Once the trigger member 12 is subjected to pressure from an external support surface, it will squeeze the elastic contact 23 of the micro switch 20, causing it to trigger and turn on. Through the design of this trigger member 12, the micro switch 20 can be completely placed in the housing 11, so that it is fully protected and is not affected by external interference. When the external support surface applies pressure, the trigger member 12 can respond quickly, squeeze the elastic contact 23 of the micro switch 20, causing it to deform, trigger the micro switch 20 to turn on, and achieve reliable control and operation. When there is no external force, the elastic contact 23 will return to its original state, pushing at least part of the trigger member 12 to reappear outside the housing 11. This design ensures the safety and reliability of the micro switch 20, enables it to work stably in various environments, and facilitates the monitoring and maintenance of the state of the micro switch 20.

[0083] Furthermore, the trigger member 12 includes a first abutting portion 121, a connecting rod 122 and a second abutting portion 123 connected in sequence, the connecting rod 122 is slidably arranged in the through hole 11a, the first abutting portion 121 is located in the housing 11, and the end of the first abutting portion 121 away from the connecting rod 122 contacts the elastic contact 23 of the micro switch 20, and the second abutting portion 123 is located outside the housing 11 to be pressed against the external support surface. In this way, by making the connecting rod 122 slide in the through hole 11a, the first abutting portion 121 and the second abutting portion 123 are driven to move in the same direction, so that a stable force can be maintained when the micro switch 20 is triggered. At the same time, the design of the first abutting portion 121, the connecting rod 122 and the second abutting portion 123 makes the trigger structure of the trigger member 12 simpler and easier to process.

[0084] It should be noted that when the first side wall 111 or the second side wall 112 contacts the external support surface, in one embodiment, the second abutting portion 123 may be completely pressed by the external support surface, so that the second abutting portion moves to trigger the micro switch 20. In another embodiment, a portion of the second abutting portion 123 is pressed by the external support surface, and the second abutting portion 123 also moves to trigger the micro switch 20.

[0085] Furthermore, the central axis of the first abutting portion 121, the central axis of the connecting rod 122, the central axis of the second abutting portion 123, and the central axis of the elastic contact 23 are coaxially arranged in the axial direction of the corresponding through hole 11a. This coaxial arrangement ensures the alignment and stability between the various components. By coaxially arranging in the axial direction, the accuracy and consistency of the triggering member 12 during operation can be ensured, thereby improving the reliability and performance of the device. In addition, the coaxial arrangement can also reduce friction and wear caused by misalignment, thereby extending the service life of the household appliance 100.

[0086] Optionally, the cross-section of the first abutting portion 121 and the cross-section of the second abutting portion 123 are larger than the diameter of the through hole 11a, thereby ensuring that the first abutting portion 121 and the second abutting portion 123 cannot pass through the through hole 11a, thereby preventing the possibility of them being separated from the through hole 11a during operation, and ensuring the stability of the connecting rod 122 when sliding in the through hole 11a.

[0087] Optionally, the outer surface of the first side wall 111 is recessed to form a first limiting groove 1111. When the micro switch 20 corresponding to the first side wall 111 is triggered and turned on, the second limiting portion of the trigger member 12 is embedded in the first limiting groove 1111, and the surface of the second abutting portion 123 away from the bottom of the first limiting groove 1111 is flush with the outer surface of the first side wall 111. Among them, the setting of the first limiting groove 1111 first ensures that the trigger member 12 can be accurately positioned when triggered by the micro switch 20, avoids the possibility of the trigger member 12 being offset, misaligned or disengaged, and ensures the normal operation of the home appliance 100. Secondly, the design that the surface of the second limiting portion away from the bottom of the first limiting groove 1111 is flush with the outer surface of the first side wall 111 improves the stability when supported by the external support surface, provides stable support, and thus enhances the performance and reliability of the home appliance 100. Similarly, optionally, the outer surface of the second side wall 112 is recessed to form a second limiting groove 1121. When the micro switch 20 corresponding to the second side wall 112 is triggered and turned on, the second limiting portion of the trigger member 12 is embedded in the second limiting groove 1121, and the surface of the second abutting portion 123 away from the groove bottom of the second limiting groove 1121 is flush with the outer surface of the second side wall 112. In this way, the function of the second limiting groove 1121 is the same as that of the first limiting groove 1111, which will not be described here.

[0088] The embodiment of another triggering mode of the micro switch 20 of the present application is different from the above embodiment in that: the first side wall 111 and the second side wall 112 are both provided with a through hole, the through hole connects the inner and outer sides of the housing 11, the micro switch 20 is movably arranged in the through hole, and the host 10 also includes a pressing member arranged in the housing 11, and the pressing member contacts the elastic contact 23 of the micro switch 20. Among them, when the micro switch 20 is not subjected to external force, at least part of the micro switch 20 is exposed outside the housing 11, and the micro switch 20 is in an off state. When the micro switch 20 is pressed by the external support surface, the micro switch 20 moves toward the pressing member, and the pressing member presses on the elastic contact 23, so that the micro switch 20 is triggered to turn on. In this way, by moving the micro switch 20 as a whole to trigger the conduction, the pressing process is more stable, and it is also convenient to repair and replace the micro switch 20 later.

[0089] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application 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. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0090] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A household appliance, characterized in that: include: A host, comprising a housing, wherein the housing has a first side wall and a second side wall, wherein when the first side wall is supported by an external support surface, the host is in a vertical placement state, and when the second side wall is supported by the external support surface, the host is in a horizontal placement state; Two micro switches are respectively arranged corresponding to the first side wall and the second side wall. When the host is in the vertical placement state, the micro switch corresponding to the first side wall is triggered and turned on by the external support surface. When the host is in the horizontal placement state, the micro switch corresponding to the second side wall is triggered and turned on by the external support surface. as well as The controller is arranged in the housing and is electrically connected to the two micro switches, and is used for controlling the home appliance to work or stop working according to the on and off states of the two micro switches.

2. The household appliance according to claim 1, characterized in that: The micro switch disposed on the first side wall is a first micro switch, and the micro switch disposed on the second side wall is a second micro switch; Wherein, when the first micro switch is turned on and the second micro switch is turned off, the controller controls the household appliance to work in a vertical placement state; When the first micro switch is turned off and the second micro switch is turned on, the controller controls the household appliance to work in a horizontal placement state; When the first micro switch and the second micro switch are both turned on or off, the controller controls the household appliance to stop working.

3. The household appliance according to claim 1, characterized in that: The micro switch disposed on the first side wall is a first micro switch, and the micro switch disposed on the second side wall is a second micro switch; there are a plurality of first micro switches, and the plurality of first micro switches are arranged at intervals on the first side wall, and / or there are a plurality of second micro switches, and the plurality of second micro switches are arranged at intervals on the second side wall; Wherein, when at least one of the first micro switches is turned on and each of the second micro switches is turned off, the controller controls the household appliance to work in a vertical placement state; When all the first micro switches are turned off and at least one of the second micro switches is turned on, the controller controls the household appliance to work in a horizontal placement state; When each of the first micro switches and each of the second micro switches are turned off, or when at least one of the first micro switches is turned on and at least one of the second micro switches is turned on, the controller controls the household appliance to stop working.

4. The household appliance according to claim 1, characterized in that: The micro switch disposed on the first side wall is a first micro switch, and the micro switch disposed on the second side wall is a second micro switch; there are a plurality of first micro switches, and the plurality of first micro switches are arranged at intervals on the first side wall, and / or there are a plurality of second micro switches, and the plurality of second micro switches are arranged at intervals on the second side wall; Wherein, when each of the first micro switches is turned on and each of the second micro switches is turned off, the controller controls the household appliance to work in a vertical placement state; When each of the first micro switches is turned off and each of the second micro switches is turned on, the controller controls the household appliance to work in a horizontal placement state; When at least one of the first micro switches is turned on and at least one of the second micro switches is turned on, or when at least one of the first micro switches is turned off and at least one of the second micro switches is turned off, the controller controls the household appliance to stop working.

5. The household appliance according to claim 1, characterized in that: For each of the micro switches, the household appliance further includes a pull-up resistor, and the micro switch includes a first terminal and a second terminal; The first terminal of each micro switch is connected to the power supply through the pull-up resistor, the first terminal is electrically connected to a detection terminal of the controller, and the second terminal is grounded.

6. The household appliance according to claim 1, characterized in that: For each of the micro switches, the household appliance further includes a pull-down resistor, and the micro switch includes a first terminal and a second terminal; The first terminal of each micro switch is connected to a power source, the second terminal is grounded through the pull-down resistor, and the second terminal is electrically connected to a detection terminal of the controller.

7. The household appliance according to claim 1, characterized in that: The host also includes an alarm electrically connected to the controller, and the alarm is used to send an alarm signal when the two micro switches are both turned on or off.

8. The household appliance according to claim 7, characterized in that: The alarm includes at least one of a signal light, a buzzer and a voice broadcast device.

9. The household appliance according to claim 2, characterized in that: The first micro switch is located in the middle of the first side wall along the width direction; and / or The second micro switch is located at a middle portion of the second side wall along a width direction.

10. The household appliance according to any one of claims 1 to 9, characterized in that: The first side wall and the second side wall are provided with through holes, the through holes communicate with the inner and outer sides of the housing, the micro switch is located in the housing, and for each of the micro switches, the host further comprises a trigger member, one of the trigger members is movably disposed in one of the through holes, and one side of the trigger member is disposed in contact with the elastic contact of the micro switch; Wherein, when the trigger component is not subjected to external force, at least part of the trigger component is exposed outside the housing, and the micro switch is in an off state; when the trigger component is pressed by an external supporting surface, the trigger component presses the elastic contact of the micro switch so that the micro switch is triggered to turn on.

11. The household appliance according to claim 10, characterized in that: The trigger component includes a first abutment portion, a connecting rod and a second abutment portion which are connected in sequence, the connecting rod is slidably arranged in the through hole, the first abutment portion is located in the housing, and the end of the first abutment portion facing away from the connecting rod is in contact with the elastic contact of the micro switch, and the second abutment portion is located outside the housing for pressing against an external supporting surface.

12. The household appliance according to claim 11, characterized in that: The central axis of the first abutting portion, the central axis of the connecting rod, the central axis of the second abutting portion and the central axis of the elastic contact are coaxially arranged in the axial direction of the corresponding through hole; And / or, a cross section of the first abutting portion and a cross section of the second abutting portion are larger than a diameter of the through hole.

13. The household appliance according to claim 11, characterized in that: The outer surface of the first side wall is concavely formed to form a first limiting groove; When the micro switch corresponding to the first side wall is triggered and turned on, the second limiting portion of the trigger component is embedded in the first limiting groove, and the surface of the second abutting portion facing away from the bottom of the first limiting groove is flush with the outer surface of the first side wall.

14. The household appliance according to claim 11, characterized in that: The outer surface of the second side wall is concavely formed to form a second limiting groove; When the micro switch corresponding to the second side wall is triggered and turned on, the second limiting portion of the trigger component is embedded in the second limiting groove, and the surface of the second abutting portion facing away from the bottom of the second limiting groove is flush with the outer surface of the second side wall.

15. The household appliance according to any one of claims 1 to 9, characterized in that: The first side wall and the second side wall are both provided with a through hole, the through hole connects the inner and outer sides of the housing, the micro switch is movably arranged in the through hole, and the host further comprises a pressing member arranged in the housing, the pressing member contacts the elastic contact of the micro switch; Wherein, when the micro switch is not subjected to external force, at least part of the micro switch is exposed outside the housing, and the micro switch is in an off state; when the micro switch is pressed by an external supporting surface, the micro switch moves toward the pressing member, and the pressing member presses against the elastic contact, so that the micro switch is triggered to turn on.

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