Household appliance
By using a combination of buffer components and trigger sensors in household appliances, the safety hazard of doors falling after automatic opening has been solved, achieving safe and reliable door operation.
Patent Information
- Application Number
- CN202422570274.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-23
AI Technical Summary
There is a safety hazard of the door of household appliances falling after opening automatically, which affects the user experience.
The anti-fall device consists of a buffer component connecting the door and the machine body, and a trigger component and a sensor component. The sensor component generates a trigger signal to confirm whether the buffer component is abnormal, so as to prevent the door from falling.
It improves the safety and user experience of home appliances, prevents doors from falling when the buffer fails, and ensures reliable opening and closing of doors.
Smart Images
Figure CN223438462U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of household appliances, and particularly relates to a household appliance. BACKGROUND
[0002] The door body of a household appliance such as a dishwasher adopts an automatic door opening technical solution. After the household appliance automatically opens the door, the door body has a falling hidden danger, which may cause a safety hazard and affect user experience. SUMMARY
[0003] The present application provides a household appliance, which aims to at least partly avoid the safety hazard of the door body falling after being opened, so as to improve safety and user experience.
[0004] In a first aspect of the present application, a household appliance is provided, comprising: a machine body provided with an opening; a door body connected to the opening of the machine body in a hinged manner; a buffer member at least partially having elasticity, the buffer member having a first end and a second end, the first end of the buffer member being connected to the door body, and the second end of the buffer member being connected to the machine body; a trigger member connected to the buffer member, the trigger member reciprocating with the opening and closing of the door body; and a sensing member connected to the machine body and arranged on the moving path of the trigger member to block the movement of the trigger member; wherein when the trigger member is blocked by the sensing member, the sensing member is triggered and generates a trigger signal; and when the trigger member is away from the sensing member, the sensing member is not triggered.
[0005] The household appliance provided by the present application has the following advantages. Since the buffer member at least partially has elasticity, and the two ends of the buffer member are respectively connected to the door body and the machine body, when the door body and the machine body move relative to each other, the elastic part of the buffer member deforms synchronously and moves with the door body to provide a buffer tension to the door body to prevent the door body from falling. Since the trigger member is connected to the buffer member, the trigger member reciprocates with the opening and closing of the door body. Since the sensing member is connected to the machine body, when the trigger member is blocked by the sensing member during the opening and closing of the door body, the sensing member is triggered and generates a trigger signal. When the trigger member is away from the sensing member, the sensing member is not triggered. That is, during the opening and closing of the door body, the trigger member can intermittently trigger the sensing member to make the sensing member intermittently generate a trigger signal, so that it can be confirmed that the buffer member is not abnormal. If during the opening and closing of the door body, the trigger member always triggers the sensing member to make the sensing member always generate a trigger signal, or the trigger member cannot trigger the sensing member to make the sensing member cannot generate a trigger signal, it can be confirmed that the buffer member is abnormal. Thus, the safety hazard of the door body falling caused by opening the door body under the premise that the buffer member is abnormal can be avoided, so as to improve safety and user experience, and the household appliance has good practicability.
[0006] In some embodiments, the trigger moves back and forth between the sensing element and the first end of the buffer, and when the door is closed, the trigger abuts against the sensing element, and when the door is opened, the trigger moves away from the sensing element.
[0007] In some embodiments, the buffer comprises a connecting pull rope and a pull spring, the trigger is connected to the pull rope, and the pull rope gap passes through the sensing element.
[0008] In some embodiments, the trigger comprises a trigger protrusion connected to the pull rope, and the trigger protrusion triggers the sensing element to generate a trigger signal.
[0009] In some embodiments, further comprising: a first turning element and a second turning element rotatably connected to the machine body, one end of the pull rope is connected to the door body, the other end of the pull rope sequentially passes through the first turning element and the second turning element, and is connected to the pull spring, and the pull spring is connected to the machine body, wherein: the trigger moves back and forth between the first turning element and the second turning element, or between the second turning element and the machine body.
[0010] In some embodiments, at least part of the projection of the trigger falls on the sensing element along the moving direction of the trigger.
[0011] In some embodiments, the sensing element is provided with a through hole, the through hole comprises a first hole body and a second hole body in communication, the inner diameter of the first hole body is larger than the inner diameter of the second hole body, and at least part of the trigger can move into the first hole body and be blocked by the edge of the second hole body.
[0012] In some embodiments, the sensing element is a microswitch, an optical coupling sensor, or a Hall element.
[0013] In some embodiments, the household appliance is a dishwasher, and during the opening and closing of the door body, the trigger can intermittently trigger the sensing element to generate a trigger signal intermittently to confirm whether the buffer is abnormal.
[0014] In some embodiments, further comprising: a control element connected to the sensing element and the door opening element to form a series circuit, and the control element is adapted to control the door opening element to open the door body by a preset angle when the series circuit is turned on.
[0015] In some embodiments, the buffer, the trigger, and the sensing element constitute a door body anti-falling device, and two door body anti-falling devices are arranged along the width direction of the door body, and the sensing elements of the two door body anti-falling devices are connected to the control element to form the series circuit.
[0016] In some embodiments, when the door body is closed, at least part of the buffer is in a relaxed state; during the process that the door opening member drives the door body to open to a preset angle, the sensing member is triggered and generates a trigger signal.
[0017] In some embodiments, the moving stroke of the door opening member is greater than the triggering stroke of the trigger member and the sensing member. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.
[0019] Figure 1 A structural schematic diagram of a household appliance of the present application is shown;
[0020] Figure 2 A front view of part of the structure of Figure 1 is shown;
[0021] Figure 3 An assembly schematic diagram of the door body and the base of the machine body is shown;
[0022] Figure 4 An enlarged schematic diagram of A of Figure 3 is shown;
[0023] Figure 5 A schematic diagram of the trigger member moving back and forth between the sensing member and the second end of the buffer is shown; Figure 6
[0024] An assembly schematic diagram of the trigger member and the sensing member of an embodiment is shown; Figure 7
[0025] A logic schematic diagram of the door body anti-falling device of an embodiment is shown; Figure 8
[0026] A logic schematic diagram of the door body anti-falling device of another embodiment is shown. Figure 9 Explanation of reference signs:
[0027] Door body - 100;
[0028]
[0029] Machine body-200, base-201, connecting piece-202, first turning piece-203, second turning piece-204, guide piece-205, guide groove-206, mounting piece-207, mounting groove-208;
[0030] Buffering piece-300, tension spring-301, pull rope-302;
[0031] Trigger piece-400, trigger protrusion-401;
[0032] Induction piece-500, through hole-501, through hole-502, first through hole-5021, second through hole-5022;
[0033] Door opening piece-600;
[0034] Hinge-700;
[0035] Control piece-800. DETAILED DESCRIPTION
[0036] In order to make the person skilled in the art to which the present application belongs more clearly understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.
[0037] The dishwasher is a kind of kitchen appliance for automatic cleaning of tableware, which is gradually entering more and more ordinary families. Generally, the dishwasher has a drying function, so that the tableware can be quickly dried after cleaning, to prevent bacteria from breeding in a humid environment.
[0038] After the washing program of the dishwasher ends, a higher temperature is needed for drying. In order to solve the problem of high energy consumption, in the related art, the door body of the dishwasher is automatically opened at a certain angle after the washing program ends, and air exchange is used to realize drying treatment of the tableware inside the machine body, so as to quickly exhaust the hot and humid air inside the dishwasher, to achieve better drying effect and reduce energy consumption.
[0039] In the related art, the door body of the dishwasher is connected with the machine body through a buffering piece to ensure the safety of the opening of the door body. However, under the premise that the buffering piece is invalid, the buffering piece cannot provide corresponding tension, and if the door body of the dishwasher is automatically opened, the door body will fall rapidly, which may cause hidden dangers, such as injuring users, children or pets. Although the dishwasher can achieve the purpose of drying, there is a high safety risk, which affects the user's experience.
[0040] To at least partially avoid the hidden danger of falling of the door body of the household appliance after the door body is opened, and to improve the safety and user experience, the household appliance shown in the present application can be a dishwasher, or other household appliances with an openable and closable door body, such as a disinfection cabinet or an oven, etc., to prevent the safety hidden danger caused by the falling of the door body. The following will take the dishwasher as an example to explain the motor equipment.
[0041] Figure 1 The structural schematic diagram of the household appliance in one or more embodiments of the present application is shown, Figure 2 The front view of the partial structure of Figure 1 is shown, Figure 3 The assembly schematic diagram of the door body and the base of the machine body is shown. In combination with Figures 1-3 , the household appliance provided by the present application comprises a door body 100, a machine body 200, and a buffer 300. The machine body 200 is provided with an opening, the door body 100 is connected to the opening of the machine body 200 in an openable and closable manner to open or close the opening of the door body 100. The buffer 300 is connected between the door body 100 and the machine body 200. At least part of the buffer 300 is elastic. The buffer 300 has a first end and a second end. The first end of the buffer 300 is connected to the door body 100, and the second end of the buffer 300 is connected to the machine body 200. When the door body 100 moves relative to the machine body 200, the elastic part of the buffer 300 deforms synchronously and moves with the door body 100 to provide a buffer pull force to the door body 100 to prevent the door body 100 from falling. If the buffer 300 fails to provide the corresponding pull force, if the door body 100 of the dishwasher is automatically opened at this time, the door body 100 will fall rapidly, which will cause hidden dangers.
[0042] When the household appliance is a dishwasher, the front end of the machine body 200 of the dishwasher is open to form a loading port of the dishwasher. The door body 100 can close the loading port of the dishwasher to form a sealed space inside the dishwasher to run the washing program of the dishwasher on the tableware.
[0043] In combination with Figures 1-3 , the side part of the door body 100 is connected to the machine body 200 through a hinge 700, and the top part of the door body 100 is connected to an opening member 600 provided on the machine body. The opening member 600 can automatically open the door body 100 by a certain angle after the household appliance completes the corresponding program, and utilize air exchange to realize the drying treatment of the tableware inside the machine body, so as to quickly discharge the hot and humid air inside the dishwasher to achieve a better drying effect and reduce the energy consumption.
[0044] In combination with Figures 1-3In some embodiments, the buffer 300 comprises a tension spring 301 and a pull rope 302, which are connected to connect the door body 100 and the machine body 200. During the opening and closing of the door body 100, the tension spring 301 of the buffer 300 deforms correspondingly to drive the pull rope 302 to move back and forth. In other embodiments, the pull rope 302 can also have a certain elasticity, and the elastic deformation capacity of the pull rope 302 is smaller than that of the tension spring 301. During the opening and closing of the door body 100, the pull rope 302 also deforms correspondingly.
[0045] In combination Figures 1-3 In an embodiment, one end of the tension spring 301 is connected to the machine body 200, one end of the pull rope 302 is connected to the other end of the tension spring 301, and the other end of the pull rope 302 is connected to the door body 100, that is, the door body 100 and the machine body 200 are connected by the combination of one tension spring 301 and one pull rope 302. In another embodiment, the tension spring 301 can also be provided in plurality, and adjacent tension springs 301 are connected by the pull rope 302, so as to connect the door body 100 and the machine body 200 by the combination of the plurality of tension springs 301 and the pull rope 302. During the opening and closing of the door body 100, the plurality of tension springs 301 of the buffer 300 deforms correspondingly to drive the pull rope 302 to move back and forth.
[0046] In combination Figure 3 In some embodiments, the bottom of the machine body 200 is provided with a base 201, and a connecting piece 202 is arranged on the base 201. The connecting piece 202 can be a rod structure and is arranged on the side of the base 201 close to the door body 100. One end of the tension spring 301 is connected to the connecting piece 202, and the other end of the tension spring 301 extends in a horizontal direction away from the connecting piece 202.
[0047] In combination Figures 2-3 In some embodiments, the machine body 200 is further provided with a turning piece, and the pull rope 302 passes through the turning piece. During the opening and closing of the door body 100, the back and forth movement of the pull rope 302 generates a friction force with the turning piece to balance the weight of the door body 100, so as to adapt to the opening of the door body 100 with greater weight. In addition, the turning of the turning piece can also keep the pull rope 302 in tension, so that the pull rope 302 can only move on a set track to avoid interference with other parts of the household appliance during movement.
[0048] In combination Figures 2-3In an embodiment, the turning member can be a wheel structure rotatably connected to the machine body 200. The pulling rope 302 and the turning member form rolling friction. Although the friction between the pulling rope 302 and the turning member is reduced, the pulling rope 302 can move smoothly on the turning member, the wear degree of the pulling rope 302 is reduced, and the service life of the pulling rope 302 is improved. In another embodiment, the turning member can also be fixedly arranged on the machine body 200, and the pulling rope 302 and the turning member form static friction to increase the friction between the pulling rope 302 and the turning member.
[0049] In some embodiments, a plurality of turning members can be arranged. The friction between the plurality of turning members and the pulling rope 302 can adapt to the opening and closing of the door body 100 with different self-weights, and keep the pulling rope 302 in tension, so that the pulling rope 302 can only move on a set track to avoid interference between the pulling rope 302 and other parts of the dishwasher during movement.
[0050] In combination Figures 2-3 In an embodiment, the turning member of the present application is provided with two, which are a first turning member 203 and a second turning member 204. The first turning member 203 and the second turning member 204 are both connected to the base 201 of the machine body 200. The first turning member 203 and the connecting member 202 are respectively located on both sides of the base 201 of the machine body 200 in the horizontal direction. The second turning member 204 is connected above the connecting member 202 and the first turning member 203. One end of the pulling rope 302 is connected to the tension spring 301. The other end of the pulling rope 302 is sequentially wound around the first turning member 203 and the second turning member 204, and is connected to the hinge 700. The pulling rope 302 between the hinge 700 and the second turning member 204 is arranged in an inclined manner. In another embodiment, the other end of the pulling rope 302 can also be connected to the side of the door body 100, which is not limited here.
[0051] Figure 4 An enlarged schematic view of A of FIG. 8 is shown in FIG. 9. Figure 3 Figures 2-4 The household appliance of the present application further comprises a trigger 400 connected to the buffer 300, the trigger 400 reciprocally moves with the opening and closing of the door body 100, and an inductor 500 connected to the machine body 200 and arranged on the moving path of the trigger 400 to block the movement of the trigger 400; when the trigger 400 is blocked by the inductor 500, the inductor 500 is triggered and generates a trigger signal; when the trigger 400 is away from the inductor 500, the inductor 500 is not triggered. That is, during the opening and closing of the door body 100, the trigger 400 can intermittently trigger the inductor 500 to make the inductor 500 intermittently generate a trigger signal, so that it can be confirmed that the buffer 300 is normal; if during the opening and closing of the door body 100, the trigger 400 always triggers the inductor 500 to make the inductor 500 always generate a trigger signal, or the trigger 400 cannot trigger the inductor 500, and the inductor 500 cannot generate a trigger signal, it can be confirmed that the buffer 300 is abnormal, so as to avoid the safety hazard of the falling of the door body 100 caused by opening the door body 100 under the premise that the buffer 300 is abnormal, so as to improve the safety and user experience, and has good practicability.
[0052] In combination Figure 2 And Figure 3 In an embodiment, the trigger 400 reciprocally moves between the inductor 500 and the first end of the buffer 300, when the door body 100 is closed, the trigger 400 is blocked by the inductor 500; when the door body 100 is opened, the trigger 400 is away from the inductor 500. In specific implementation, the trigger 400 can reciprocally move between the first turning piece 203 and the second turning piece 204, if the buffer 300 on one side of the tension spring 301 is abnormal, when the door body 100 is closed, due to the lack of the pulling force of the buffer 300 on one side of the tension spring 301 on the trigger 400, the trigger 400 cannot move to the direction of the inductor 500, the trigger 400 cannot trigger the inductor 500, and the inductor 500 cannot generate a trigger signal; if the buffer 300 on one side of the door body 100 is abnormal, when the door body 100 is opened, due to the lack of the pulling force of the buffer 300 on one side of the door body 100 on the trigger 400, and under the action of the pulling force of the buffer 300 on one side of the tension spring 301, the trigger 400 always abuts against the inductor 500, and the inductor 500 always generates a trigger signal, so that it can be confirmed that at least part of the buffer 300 is abnormal, and the specific judgment method can be referred to the description below.
[0053] Figure 5 And Figure 6 A state diagram showing that the trigger reciprocally moves between the inductor and the second end of the buffer is shown. In combination Figure 5 And Figure 6In another embodiment, the trigger 400 moves back and forth between the inductor 500 and the second end of the buffer 300. When the door body 100 is closed, the trigger 400 is away from the inductor 500. When the door body 100 is opened, the trigger 400 moves towards the inductor 500. When the door body 100 is opened to the maximum angle, the trigger 400 stops and blocks the inductor 500. In a specific implementation, the trigger 400 can move back and forth between the first turning part 203 and the second turning part 204, or between the connecting part 202 of the body 201 and the second turning part 204. If the buffer 300 on one side of the tension spring 301 fails, when the door body 100 is closed, the trigger 400 is always stopped at the inductor 500 due to the lack of the pulling force of the buffer 300 on one side of the tension spring 301, but under the pulling force of the buffer 300 on one side of the door body 100, the trigger 400 is always stopped at the inductor 500, and the inductor 500 always generates a trigger signal. If the buffer 300 on one side of the door body 100 fails, when the door body 100 is opened, the trigger 400 cannot move towards the inductor 500 due to the lack of the pulling force of the buffer 300 on one side of the door body 100 and the pulling force of the buffer 300 on one side of the tension spring 301, the trigger 400 cannot trigger the inductor 500, and the inductor 500 cannot generate a trigger signal, which can confirm that at least part of the buffer 300 is abnormally failed. The specific judgment method can be referred to the description below.
[0054] In combination Figure 4 The trigger 400 is connected to the pull rope 302 to move synchronously with the pull rope 302. The trigger 400 can be a trigger protrusion 401 connected to the pull rope 302. The trigger protrusion 401 can be a columnar structure and is connected to the circumferential side of part of the pull rope 302. When the trigger protrusion 401 blocks the inductor 500, the trigger 400 generates a trigger signal. When the trigger protrusion 401 is away from the inductor 500, the inductor 500 is not triggered. In addition, the pull rope 302 gap passes through the inductor 500 to prevent the pull rope 302 from contacting the trigger 400 during the opening and closing of the door body 100, so as to avoid that the trigger 400 generates a trigger signal due to the pull rope 302.
[0055] In combination Figures 2-4In order to enable the trigger 400 to move along the set track, the household appliance further comprises a guide 205 which is assembled to the body 200, and the trigger 400 can move back and forth on the guide 205. In a specific implementation, the guide 205 can be assembled to the base 201 of the body 200, and the guide 205 can be a block-shaped structure arranged in a horizontal direction, and the top or side of the guide 205 is provided with a guide groove 206, and at least part of the trigger 400 reciprocates in the guide groove 206, so as to guide the reciprocating movement of the trigger 400, and enable the trigger 400 to reciprocate in the horizontal direction. In addition, when the buffer 300 is disabled, the trigger 400 will fall into the guide groove of the guide 205 due to gravity, so as to avoid the adverse effects caused by the trigger 400 falling on other components of the dishwasher due to gravity.
[0056] In combination Figure 4 In an embodiment, the sensing member 500 is arranged on the moving path of the trigger 400, and the sensing member 500 is fixedly connected to the base 201 of the body. In a specific implementation, the base 201 is provided with a mounting member 207, and the mounting groove 208 is arranged on the circumferential side of the mounting member 207, and part of the sensing member 500 is arranged in the mounting groove 208 of the mounting member 207, and the sensing member 500 has a sensing portion protruding from the mounting member 207, and in the process of reciprocating movement of the trigger 400 and the rope, the trigger 400 triggers the sensing portion of the sensing member 500 to generate a trigger signal.
[0057] In combination Figure 4 The sensing member 500 is provided with a through hole 501, and the rope of the buffer 300 can reciprocatingly pass through the through hole 501, and at least part of the projection of the trigger 400 falls on the sensing member 500 in the moving direction of the trigger 400, that is, in the process of reciprocating movement of the rope of the buffer 300, the trigger 400 is blocked by the sensing member 500, and the trigger 400 contacts the sensing member 500 to generate a trigger signal.
[0058] In combination Figure 4 In an embodiment, a notch is arranged on the side of the sensing member 500 as the above-mentioned through hole 501 to reduce the size of the sensing member 500. In another embodiment, a through hole can also be arranged in the middle of the sensing member 500 as the above-mentioned through hole 501, which is not limited in the present application.
[0059] Figure 7 An assembly schematic view of the trigger and the sensing member of an embodiment is shown. In combination Figure 7, the inductive piece 500 can also be an optical coupling sensor, the inductive piece 500 is provided with a through hole 502, the through hole 502 includes a first hole body 5021 and a second hole body 5022 which are communicated, the inner diameter of the first hole body 5021 is larger than the inner diameter of the second hole body 5022, at least part of the trigger piece 400 can be moved into the first hole body 5021 and is blocked by the edge of the second hole body 5022. That is, the inner diameter of at least part of the trigger piece 400 is between the inner diameter of the first hole body 5021 and the inner diameter of the second hole body 5022, so that at least part of the trigger piece 400 can enter the first hole body 5021, but cannot pass through the second hole body 5022, thereby triggering the optical coupling sensor to generate a trigger signal.
[0060] In another embodiment, the inductive piece 500 can be a micro switch or a Hall element, when the inductive piece 500 is a micro switch, the inductive piece 500 has a sensing protrusion, during the movement of the trigger piece 400 towards the inductive piece 500, the trigger piece 400 abuts against the sensing protrusion of the inductive piece 500, so that the inductive piece 500 generates a trigger signal. When the inductive piece 500 is a Hall element, at least part of the trigger piece 400 has magnetism, so that during the movement of the trigger piece 400 towards the inductive piece 500, the trigger piece 400 triggers the inductive piece 500, so that the inductive piece 500 generates a trigger signal.
[0061] In combination Figure 2 And Figure 3 When the household appliance is a dishwasher, the side part of the door body 100 is connected to the body 200 through the hinge 700, and the top part of the door body 100 is connected to the door opening piece 600 provided on the body 200, the door opening piece 600 can automatically open the door body 100 by a certain angle after the dishwasher completes the washing program, and air exchange is used to realize the drying treatment of the tableware in the body 200, so as to quickly discharge the hot and humid air in the dishwasher, so as to achieve better drying effect and reduce energy consumption.
[0062] In combination Figure 8In an embodiment, the door opening member 600 is connected with the sensing member 500. When the door body 100 is closed to the machine body 200, the trigger member 400 stops the sensing member 500, and the sensing member 500 and the door opening member 600 are connected in series. Thus, when the household appliance is running, the door body 100 is closed to the machine body 200. If the trigger member 400 stops the sensing member 500, the sensing member 500 can be triggered by the trigger member 400, it is judged that the buffer member 300 is normally working. The sensing member 500 feeds back a trigger signal to the door opening member 600, and the door opening member 600 controls the door body 100 to open to a preset angle. If the trigger member 400 and the sensing member 500 are separated, the sensing member 500 cannot be triggered by the trigger member 400, it is judged that the buffer member 300 is abnormally failed. The sensing member 500 cannot feed back a trigger signal to the door opening member 600. After the running of the household appliance is finished, the door opening member 600 stops to cancel the automatic opening of the door body 100, so as to avoid the safety hazard of falling of the door body 100 caused by the opening of the door body 100 under the premise of the failure of the buffer member 300, and to improve the safety and user experience.
[0063] In combination Figure 9 In another embodiment, the household appliance further comprises a control member 800, which is connected with the sensing member 500 and the door opening member 600 respectively, i.e. the sensing member 500, the door opening member 600 and the control member 800 form a series circuit. When the trigger member 400 triggers the sensing member 500, the series circuit is conducted, and the control member 800 is adapted to control the door opening member 600 to open the door body 100 to a preset angle under the condition that the series circuit is conducted.
[0064] In combination Figure 2 , Figure 8 and Figure 9 The buffer member 300 can be provided with two, which are respectively arranged on both sides of the door body 100 in the width direction. Correspondingly, the sensing member 500 and the trigger member 400 are also correspondingly provided with two. The buffer member 300 and the corresponding trigger member 400 and sensing member 500 constitute a door body anti-falling device. The sensing members 500 of the two door body anti-falling devices are connected with the control member 800 to form a series circuit. Only when the trigger members 400 of the two door body anti-falling devices trigger the sensing members 500, the series circuit is conducted. The control member 600 is adapted to control the door opening member 600 to open the door body 100 to a preset angle under the condition that the series circuit is conducted. If only one of the trigger members 400 of the two door body anti-falling devices triggers the sensing member 500, or the trigger members 400 of the two door body anti-falling devices do not trigger the sensing members 500, the series circuit is not conducted, and the control member 600 controls the door opening member 600 to stop opening the door body 100, so as to ensure the safety.
[0065] Specific to the present application, the trigger 400 reciprocates between the limiting member 208 and the first end of the buffer 300. If the buffer 300 is not failed, when the door body 100 is in a closed state, the trigger 400 abuts against the side of the sensing member 500 facing the door body 100 to trigger the sensing member 500 to generate a trigger signal. When the door body 100 is opened, the movement of the door body 100 drives the pull rope 302 and the trigger 400 to move synchronously in a direction away from the limiting member 208, and the trigger 400 and the sensing member 500 are separated; when the door body 100 is closed, under the action of the recovery deformation of the tension spring 301, the pull rope 302 and the trigger 400 move synchronously in a direction close to the limiting member 208 until the buffer 300 abuts against the sensing member 500 to generate a trigger signal. If the buffer 300 is failed, the trigger 400 cannot perform the above-mentioned action in the process of opening and closing the door body 100, that is, whether the buffer 300 is failed is determined according to whether the trigger signal is generated or not, and the specific determination method can be referred to the description below.
[0066] In an embodiment, when the door body 100 closes the body 200, at least part of the buffer 300 is in a relaxed state, at this time, due to the pre-tightening force of the tension spring 301 of the buffer 300, the trigger 400 abuts against the sensing member 500, and the sensing member 500 generates a trigger signal; in the process of the door opener 600 driving the door body 100 to open, the door body 100 pulls the pull rope 302 of the buffer 300 to act until the pull rope 302 of the buffer 300 is in a tension state, at this time, the door opener 600 drives the door body 100 to open to a preset angle. In this process, due to the pre-tightening force of the tension spring 301 of the buffer 300, the trigger 400 always abuts against the sensing member 500, and the sensing member 500 always generates a trigger signal to the door opener 600 or the controller 800; if the sensing member 500 cannot always generate a trigger signal to the door opener 600 or the controller 800 in this process, it can be judged that the trigger 400 is separated from the sensing member 500, and the buffer 300 is in an abnormal failed state, then the door opener 600 is controlled to stop opening the door body 100 to ensure safety.
[0067] In another embodiment, when the door body 100 closes the machine body 200, the buffer 300 is in a tension state, when the door body 100 closes the machine body 200, since the trigger 400 abuts and blocks on the sensing element 500, if the pull rope 302 between the trigger 400 and the first end of the buffer 300 is in an abnormal failure state, since the limiting element limits the trigger 400, the trigger 400 still blocks the sensing element 500, if the control door opening element 600 is actuated in this state, the door body 100 has a falling safety hazard. Based on this, when the control door opening element 600 needs to be actuated to open the door body to a preset angle after the household appliance is finished running, it is necessary to confirm whether the sensing element 500 is separated from the trigger 400, if yes, it indicates that the pull rope 302 between the trigger 400 and the first end of the buffer 300 is normal, then the control door opening element 600 can continue to execute the door opening action to open the door body 100, if not, the control door opening element 600 stops executing the door opening action. That is, in the process of executing the door opening action by the door opening element 600, the door body 100 will open a small angle, which will drive the trigger 400 to move away from the limiting element, and the trigger 400 is separated from the triggering part of the sensing element 500, to indicate that the buffer 300 is normal, and the control door opening element 600 continues to execute the door opening action to open the door body 100; if in the process of executing the door opening action by the door opening element 600, the trigger 400 still contacts the limiting element and generates a triggering signal, it indicates that the pull rope 302 between the trigger 400 and the first end of the buffer 300 is in an abnormal failure state, therefore, the control door opening element 600 needs to be controlled to stop executing the door opening action to avoid safety hazards. In specific implementation, the movement stroke of the door opening element 600 can be greater than the triggering stroke of the sensing element 500.
[0068] Based on the same design idea, the application also provides an abnormality judgment method of a household appliance, which comprises: in the process of opening and closing the door body 100, the position of the trigger 400 is confirmed according to the sensing element 500 to judge whether it works normally, so as to avoid the safety hazard of falling of the door body 100 caused by opening the door body 100 under the premise of failure of the buffer 300, to improve safety and user experience, and has good practicability.
[0069] In an embodiment, the trigger 400 moves back and forth between the sensing element 500 and the first end of the buffer 300, under this condition, whether the buffer 300 works normally is judged, which specifically comprises:
[0070] When the door body 100 is closed, if the trigger piece 400 is in normal working state, the trigger piece 400 abuts against the sensing piece 500 and generates a trigger signal to the controller 800, the controller 800 confirms that the trigger piece 400 contacts the sensing piece 500; if the buffer piece 300 is abnormal, the sensing piece 500 cannot generate a trigger signal to the controller 800, the controller 800 cannot obtain the trigger signal, and it can be judged that the trigger piece 400 does not abut against the sensing piece 500. This is because the buffer piece 300 between the trigger piece 400 and the second end of the buffer piece 300 is abnormally disabled, and in the process of closing the door body 100, the buffer piece 300 between the trigger piece 400 and the second end of the buffer piece 300 cannot drive the trigger piece 400 to reset and block the sensing piece 500, therefore, when the door body 100 is closed, if the trigger piece 400 does not contact the sensing piece 500, it can be confirmed that the buffer piece 300 between the trigger piece 400 and the second end of the buffer piece 300 is abnormal.
[0071] When the door body 100 is opened, if the buffer piece 300 is in normal working state, the trigger piece 400 is driven away from the sensing piece 500 by the door body 100, the sensing piece 500 cannot generate a trigger signal to the controller 800, the controller 800 cannot obtain the trigger signal, and the controller 800 confirms that the trigger piece 400 is away from the sensing piece 500; if the buffer piece 300 is abnormal, the trigger piece 400 does not move away from the sensing piece 500, and the trigger piece 400 still blocks the sensing piece 500, the sensing piece 500 can always generate a trigger signal to the controller 800, and it can be judged that the trigger piece 400 does not move away from the sensing piece 500 and still blocks the sensing piece 500. This is because the buffer piece 300 between the trigger piece 400 and the first end of the buffer piece 300 is abnormally disabled, and in the process of opening the door body 100, the buffer piece 300 between the trigger piece 400 and the first end of the buffer piece 300 is abnormally disabled and cannot drive the trigger piece 400 to move away from the sensing piece 500, so that the trigger piece 400 always triggers the sensing piece 500 to generate a trigger signal to the controller 800, therefore, when the door body 100 is opened, if the trigger piece 400 does not move away from the sensing piece 500, it can be confirmed that the buffer piece 300 between the trigger piece 400 and the first end of the buffer piece 300 is abnormal.
[0072] In another embodiment, the trigger piece 400 moves back and forth between the sensing piece 500 and the second end of the buffer piece 300, and under this condition, whether the buffer piece 300 is in normal working state is judged, which specifically includes:
[0073] When the door body 100 is closed, if the buffer piece 300 is in normal working state, the trigger piece 400 is away from the inductive piece 500, the inductive piece 500 cannot generate a trigger signal to the controller 800, and the controller 800 confirms that the trigger piece 400 is separated from the inductive piece 500; if the buffer piece 300 is abnormally disabled, the controller 800 can receive the trigger signal sent by the inductive piece 500, which indicates that the trigger piece 400 abuts on the inductive piece 500, the buffer piece 300 between the trigger piece 400 and the second end of the buffer piece 300 is abnormally disabled, and in the process of closing the door body 100, the trigger piece 400 loses the pulling force of the buffer piece 300 between the trigger piece 400 and the second end of the buffer piece 300, and the trigger piece 400 always abuts on the inductive piece 500 under the pulling force of the buffer piece 300 between the trigger piece 400 and the first end of the buffer piece 300. Therefore, when the door body 100 is closed, if the controller 800 can receive the trigger signal, it can be confirmed that the buffer piece 300 between the trigger piece 400 and the second end of the buffer piece 300 is abnormally disabled.
[0074] When the door body 100 is opened, if the buffer piece 300 is in normal working state, the trigger piece 400 moves under the driving of the door body 100, and when the door body 100 is opened to the maximum angle, the trigger piece 400 abuts on and blocks the inductive piece 500, the inductive piece 500 generates a trigger signal to the controller 800, and the controller 800 confirms that the trigger piece 400 abuts on the inductive piece 500; if the buffer piece 300 is abnormal, the controller 800 cannot receive the trigger signal, which indicates that the buffer piece 300 between the trigger piece 400 and the first end of the buffer piece 300 is abnormal and cannot pull the trigger piece 400 to move in the direction of the inductive piece 500, and the trigger piece 400 does not abut on and block the inductive piece 500. (The maximum angle)
[0075] It should be noted that the buffer piece 300 failure of the present application refers to insufficient elastic deformation of the buffer piece 300, or the buffer piece 300 falling off, breaking, etc.; if it is confirmed that the buffer piece 300 is abnormal, the household appliance control locking device does not automatically open the door, and displays the corresponding abnormal code on the display part of the household appliance, or / and reminds the user to pay attention through the alarm device, the user can contact the after-sales personnel to maintain the household appliance, so as to prevent the safety technical problem caused by abnormal opening of the door body 100.
[0076] In the present application, unless specifically defined and limited otherwise, the "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "on", "above" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.
[0077] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0078] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be broadly understood, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal connection of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0079] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically defined.
[0080] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A household appliance, characterized in that: include: a body provided with an opening; A door body, openably connected to the opening of the body; a buffer member, at least partially elastic, having a first end and a second end, wherein the first end of the buffer member is connected to the door body, and the second end of the buffer member is connected to the machine body; A triggering member connected to the buffer member, wherein the triggering member moves back and forth as the door body opens and closes; The induction member is connected to the body and is arranged on the moving path of the trigger member to block the movement of the trigger member; wherein, When the triggering member blocks the sensing member, the sensing member is triggered and generates a trigger signal; when the triggering member is away from the sensing member, the sensing member is not triggered.
2. The household appliance according to claim 1, characterized in that The trigger member moves back and forth between the sensing member and the first end of the buffer member. When the door body is closed, the trigger member stops at the sensing member. When the door body is opened, the trigger member moves away from the sensing member.
3. The household appliance according to claim 1, characterized in that The buffer component includes a pull rope and a tension spring connected to each other, the trigger component is connected to the pull rope, and the pull rope gap passes through the sensing component.
4. The household appliance according to claim 3, characterized in that The triggering member includes a triggering protrusion connected to the pull rope, and the triggering protrusion abuts against the sensing member to enable the sensing member to generate a trigger signal.
5. The household appliance according to claim 3, characterized in that Also includes: A first steering member and a second steering member are rotatably connected to the body, one end of the pull rope is connected to the door body, and the other end of the pull rope is passed around the first steering member and the second steering member in sequence and connected to the tension spring, and the tension spring is connected to the body, wherein: The triggering member reciprocates between the first steering member and the second steering member or between the second steering member and the machine body.
6. The household appliance according to claim 3, characterized in that Along the moving direction of the triggering member, at least a portion of the projection of the triggering member falls on the sensing member.
7. The household appliance according to claim 3, characterized in that The sensing member is provided with a through hole, which includes a first hole body and a second hole body that are connected to each other. The inner diameter of the first hole body is larger than the inner diameter of the second hole body. At least part of the trigger member can move into the first hole body and be blocked by the edge of the second hole body.
8. The household appliance according to claim 1, characterized in that The induction element is a micro switch, an optical coupler sensor or a Hall element.
9. The household appliance according to any one of claims 1 to 8, characterized in that: The household appliance is a dishwasher. During the opening and closing process of the door, the triggering member can intermittently trigger the sensing member, so that the sensing member intermittently generates a trigger signal to confirm whether the buffer member is abnormal.
10. The household appliance according to claim 9, characterized in that Also includes: A door opening member is connected to the machine body to drive the door body to open, and the door opening member is connected to the sensing member; wherein, when the door body closes the machine body, the trigger member stops at the sensing member, and the sensing member feeds back a trigger signal to the door opening member, and the door opening member drives the door body to open a set angle.
11. The household appliance according to claim 10, characterized in that Also includes: The control component is respectively connected with the sensing component and the door opening component to form a series circuit. When the series circuit is in conduction, the control component is suitable for controlling the door opening component to open the door body to a preset angle.
12. The household appliance according to claim 11, characterized in that The buffer component, the trigger component and the sensor component constitute a door anti-falling device. Two door anti-falling devices are provided along the width direction of the door body. The sensors of the two door anti-falling devices are both connected to the control component to form the series circuit.
13. The household appliance according to any one of claims 10 to 12, characterized in that: When the door body closes the machine body, at least a portion of the buffer member is in a relaxed state; In the process of the door opening member driving the door body to open a preset angle, the sensing member is triggered and generates a trigger signal.
14. The household appliance according to any one of claims 10 to 12, characterized in that: The moving stroke of the door opening member is greater than the triggering stroke of the triggering member and the sensing member.