An opening and closing mechanism, a closing control method and a household appliance

Abstract

The present invention relates to the technical field related to household appliances, and its object is to provide an opening and closing mechanism, a closing control method and a household appliance. The opening and closing mechanism, the closing control method and the household appliance can accurately detect whether the panel is closed in place, will not cause misjudgment, and will not pinch the user during the closing process of the panel, are safe and reliable, and have a good user experience. Such an opening and closing mechanism is arranged on the mounting plate of the household appliance and is used to drive the panel to open and close. The opening and closing mechanism includes a driving mechanism and a position detection mechanism. The driving mechanism is arranged on the mounting plate, and the driving end of the driving mechanism is connected to the panel and drives the panel to move linearly back and forth; the position detection mechanism is arranged on the mounting plate and on one side of the driving mechanism, and the position detection mechanism is used to detect whether the panel is closed in place.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to an opening and closing mechanism, a closing control method, and a household appliance. Background Art

[0002] With the diversified development of household appliances, electrical equipment such as microwave ovens, ovens, steam ovens, etc. have emerged to meet different usage needs of users. Taking a steam oven as an example, in order to facilitate water injection into the water tank, the water tank is usually arranged behind the control panel. When water injection is required, the control panel is opened, and after the water injection is completed, the control panel is closed again. In order to facilitate user operation, a control panel that can automatically open and close has emerged, with a high degree of intelligence, which can provide a good user experience for users and is convenient for user operation.

[0003] Existing control panels that can automatically open and close usually use the stall of the driving device and the closing time to detect whether the control panel is closed in place. However, affected by factors such as temperature and long-term use of structural components, the thermal expansion and contraction of the components of the electrical equipment itself or the change in the wear resistance after long-term use will cause the actual closing time of the control panel to be inconsistent with the preset closing time under the same duty cycle of the driving device, that is, there will be a situation where the control panel is not closed in place when the preset closing time is reached. Therefore, using the preset closing time as the condition for judging whether the control panel is closed in place is inaccurate, which will affect the user experience. In addition, improper closing of the panel is likely to pinch the user, posing a safety hazard. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the judgment of whether the control panel is closed in place is inaccurate, affecting the user experience, and being prone to pinching the user and posing a safety hazard, and to provide an opening and closing mechanism, a closing control method, and a household appliance that can accurately detect whether the panel is closed in place, will not pinch the user, is safe and reliable, and has a good user experience.

[0005] To solve the above problems, the present invention provides an opening and closing mechanism arranged on the mounting plate of a household appliance for driving the panel to open and close. The opening and closing mechanism includes:

[0006] A driving mechanism arranged on the mounting plate, the driving end of the driving mechanism is connected to the panel and drives the panel to move linearly back and forth;

[0007] A position detection mechanism arranged on the mounting plate and on one side of the driving mechanism, the position detection mechanism is used to detect whether the panel is closed in place.

[0008] As a preferred technical solution of the panel opening and closing mechanism, the driving mechanism includes a driving device and a push-pull member. One end of the push-pull member is connected to the driving end of the driving device, and the other end is connected to the panel. The driving device drives the push-pull member and the panel to move linearly back and forth.

[0009] As a preferred technical solution of the panel opening and closing mechanism, the position detection mechanism includes a detection component and a triggering component. The detection component is arranged on the mounting plate, and the triggering component is arranged on one side of the push-pull member facing the detection component. When the triggering component contacts the detection component, the panel is closed.

[0010] As a preferred technical solution of the panel opening and closing mechanism, the push-pull member includes two push-pull rods arranged at intervals and a connecting plate connecting the two push-pull rods, and the triggering component is arranged on one side of the connecting plate facing the detection component.

[0011] As a preferred technical solution of the panel opening and closing mechanism, the driving device drives the panel to move linearly back and forth horizontally and open and close relative to the front frame, and the front frame is perpendicular to the mounting plate.

[0012] As a preferred technical solution of the panel opening and closing mechanism, the distance between the panel and the end of the triggering component away from the panel is D;

[0013] During the closing process of the panel, when the end of the triggering component away from the panel triggers the detection component, the distance between the panel and the front frame is F, and L < F < S, where L is the blocked rotation detection reaction distance and S is the standard diameter of the human test finger;

[0014] The distance between the front frame and the detection part of the detection component is K. When the panel is completely closed, D - F > K.

[0015] As a preferred technical solution of the panel opening and closing mechanism, the distance F between the panel and the front frame satisfies L + G < F < S - G, and the distance K between the front frame and the detection part of the detection component satisfies D - F - G > K when the panel is completely closed, where G is the tolerance.

[0016] As a preferred technical solution of the panel opening and closing mechanism, the length of the triggering component along the moving direction of the panel is E, and E > D - K + G, where G is the tolerance.

[0017] As a preferred technical solution of the panel opening and closing mechanism, a fixing plate is arranged on the mounting plate. The fixing plate is perpendicular to the mounting plate, and the detection component is arranged on the fixing plate.

[0018] As a preferred technical solution of the panel opening and closing mechanism, the detection component is a micro switch.

[0019] As a preferred technical solution of the panel opening and closing mechanism, the driving mechanism further includes a slider, the slider is connected to the driving end, and one end of the pushing and pulling member is connected to the slider.

[0020] A closing control method for an opening and closing mechanism as described above, comprising:

[0021] The driving device drives the panel to move in the closing direction with a duty cycle P n (n = 1 + i, i is a natural number and the initial value is 0);

[0022] Detect the state T of the position detection mechanism and the current X corresponding to the current duty cycle;

[0023] When T = T1, determine whether X = X n or X < X n (n = 1 + i, i is a natural number and the initial value is 0), where T1 represents no trigger detection, and X n is the stall current corresponding to the current duty cycle;

[0024] If T = T1 and X = X n , it means the panel has clamped an object, the driving device drives the panel to move in the opening direction, let i = i + 1, and repeat the above steps;

[0025] If T = T1 and X < X n , continue to detect the state T of the position detection mechanism and the current X corresponding to the current duty cycle;

[0026] When T = T2, determine whether X < X n or X ≥ X n , where T2 represents trigger detection;

[0027] If T = T2 and X < X n , the driving device continues to drive the panel to move in the closing direction, and continues to detect the state T of the position detection mechanism and the current X corresponding to the current duty cycle;

[0028] If X ≥ X when T = T2 n , it means the panel is completely closed.

[0029] As a preferred technical solution of the closing control method, in the step where if T = T1 and X = X n , it means the panel has clamped an object, the driving device drives the panel to move in the opening direction, let i = i + 1, and repeat the above steps, the driving device drives the panel to move in the opening direction until the panel is completely opened.

[0030] An household appliance includes a housing and a mounting plate disposed on the upper surface of the housing, and the opening and closing mechanism as described above is disposed on the mounting plate.

[0031] As a preferred technical solution of the household appliance, the household appliance is a steam oven.

[0032] The technical solution of the present invention has the following advantages:

[0033] (1) The opening and closing mechanism provided by the present invention is disposed on the mounting plate of the household appliance and is used to drive the panel to open and close. It includes a driving mechanism and a position detection mechanism. The driving end of the driving mechanism is connected to the panel and drives the panel to move linearly back and forth. The position detection mechanism is used to detect whether the panel is closed in place. When the panel is closed in place, it can be detected by the position detection mechanism in a timely and accurate manner, so as to ensure that it can accurately detect whether the panel is closed in place, meet the user's needs, and improve the user experience.

[0034] (2) For the opening and closing mechanism provided by the present invention, the driving mechanism includes a driving device and a pushing and pulling member. One end of the pushing and pulling member is connected to the driving end of the driving device, and the other end is connected to the panel. The driving device drives the pushing and pulling member and the panel to move linearly back and forth. The above driving mechanism has a simple structure, is stable and reliable, and can ensure the smooth movement of the panel.

[0035] (3) For the opening and closing mechanism provided by the present invention, the position detection mechanism includes a detection component and a triggering component. The detection component is disposed on the mounting plate, and the triggering component is disposed on the side of the pushing and pulling member facing the detection component. The panel is closed when the triggering component contacts the detection component. This position detection mechanism has a simple and reliable structure, is convenient to arrange, and the detection component is preferably a micro switch with high detection accuracy.

[0036] (4) For the opening and closing mechanism provided by the present invention, the distance between the panel and the end of the triggering component away from the panel is D; during the closing process of the panel, when the end of the triggering component away from the panel triggers the detection component, the distance between the panel and the front frame is F, L < F < S, where L is the stall detection reaction distance and S is the standard diameter of the human test finger; the distance between the front frame and the detection part of the detection component is K, and when the panel is completely closed, D - F > K; the length of the triggering component along the moving direction of the panel is E, and E > D - K. Through the above size settings and in cooperation with the control method, the probability of pinching the user during the closing process of the panel can be reduced, and the safety of the user during use can be improved.

[0037] (5) The closing control method provided by the present invention includes driving the panel to move in the closing direction with a duty cycle P n (n = 1 + i, i is a natural number and the initial value is 0), driving the panel to move in the closing direction; detecting the state T of the position detection mechanism and the current X corresponding to the current duty cycle; if T = T1 and X = X n(n = 1 + i, where i is a natural number with an initial value of 0), then the panel clamps an object (which can be the user's hand, etc.), and the driving device drives the panel to move in the opening direction, where T1 represents no trigger detection, X n is the stall current corresponding to the current duty cycle; let i = i + 1, and repeat the above steps until X < X when T = T1 n , and X ≥ X when T = T2 n , then the panel is completely closed, where T2 represents trigger detection. In the above closing control method, during the entire closing process, the panel is initially closed with a relatively small force. If it touches the user, it will reverse, and it will not clamp the user. Moreover, during this process, it will try multiple times, which is equivalent to reminding the user to avoid multiple times, so as to avoid clamping the user. Using the progressive pulling and multiple judgment control logic can not only play the role of multiple reminders, but also avoid driving with the maximum duty cycle each time, reducing the wear of the system during long-term use, greatly reducing the probability of clamping the user during the panel closing process, improving the safety of the user during use, eliminating potential safety hazards, and accurately detecting whether the panel is closed in place, improving the user experience.

[0038] (6) In the closing control method provided by the present invention, when the panel is closed, a detection component is used to judge whether the panel is closed in place, and the status signal of the detection component is used as one of the conditions for judging the normal closing of the panel, so as to replace the use of the preset closing time as the judgment condition, avoiding abnormal situations caused by the inconsistency between the actual closing time and the preset time, and improving the user experience.

[0039] (7) The household appliance provided by the present invention includes a housing and a mounting plate provided on the upper surface of the housing, and the opening and closing mechanism of the present invention is provided on the mounting plate. Such a household appliance can accurately detect whether it is closed in place through the position detection mechanism during the panel closing process, and can effectively prevent pinching the user, improve the safety of the appliance during use, meet the user's use requirements, and enhance the user experience. Description of the Drawings

[0040] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 is a schematic diagram of the opening and closing mechanism of the present invention;

[0042] Figure 2 is a side cross-sectional view of the opening and closing mechanism of the present invention;

[0043] Figure 3is Figure 2 An enlarged view of part A in

[0044] Figure 4 is Figure 2 An enlarged view of part B in

[0045] Figure 5 A flowchart of the shutdown control method of the present invention.

[0046] Explanation of reference numerals:

[0047] 1. Mounting plate; 2. Panel; 301. Driving device; 302. Pushing and pulling member; 3021. Push rod; 3022. Connecting plate; 303. Slide block; 401. Detection component; 4011. Detection part; 402. Trigger component; 5. Front frame; 6. Fixed plate. Detailed implementation manners

[0048] Next, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mount", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] Such as Figures 1-4As shown, it is a preferred embodiment of the opening and closing mechanism of the present invention. This opening and closing mechanism can be applied to household appliances such as steam ovens that require opening and closing of panels or doors. Such an opening and closing mechanism can accurately detect whether the panel is closed in place, without abnormal judgment, thus meeting the user's usage requirements. Moreover, it can effectively avoid pinching the user, has strong safety, and improves the user experience.

[0053] This opening and closing mechanism is arranged on the mounting plate 1 of the household appliance and is used to drive the panel 2 to open and close. The mounting plate 1 is usually a plate-like structure arranged on the top of the household appliance. In this embodiment, the mounting plate 1 is horizontally arranged. The panel 2 can be a control panel or other functional panels or doors, etc. The present invention does not limit this. In this embodiment, the panel 2 is a control panel.

[0054] The opening and closing mechanism includes a driving mechanism and a position detection mechanism. The driving mechanism is arranged on the mounting plate 1. The driving end of the driving mechanism is connected to the panel 2 and drives the panel 2 to move linearly back and forth. As Figure 2 shown by the arrow in the figure, the panel 2 can move horizontally linearly back and forth in the left-right direction under the drive of the driving mechanism, and the rightward movement is the opening direction, and the leftward movement is the closing direction. In this embodiment, the driving mechanism drives the panel 2 to move horizontally linearly back and forth and open and close relative to the front frame 5. The front frame 5 is vertically arranged with the mounting plate 1. The front frame 5 is connected to one end of the mounting plate 1. As Figure 2 shown, in this embodiment, the front frame 5 is connected to the right end of the mounting plate 1.

[0055] Furthermore, the driving mechanism includes a driving device 301 and a push-pull member 302. One end of the push-pull member 302 is connected to the driving end of the driving device 301, and the other end is connected to the panel 2. The driving device 301 drives the push-pull member 302 and the panel 2 to move linearly back and forth. The driving device 301 can adopt a motor. By the forward and reverse rotation of the motor, the purpose of driving the panel 2 to move horizontally linearly back and forth is achieved. At this time, the driving end of the driving device 301 is the output shaft of the motor.

[0056] The push-pull member 302 includes a connecting plate 3022 and two push-pull rods 3021. The two push-pull rods 3021 are arranged at intervals. The connecting plate 3022 is placed between the two push-pull rods 3021, and both sides of the connecting plate 3022 are respectively connected to the two push-pull rods 3021 to form an integral structure. Specifically, the push-pull member 302 is arranged in the horizontal direction, that is, parallel to the moving direction of the panel 2. The connection part of the push-pull member 302 and the panel 2 is close to the edge of the panel 2, and the connection parts of the two push-pull members 302 and the panel 2 are symmetric with respect to the midline of the panel 2 to apply balanced and stable pushing and pulling forces to the panel 2. The two push-pull members 302 and the panel 2 form a frame structure. The connecting plate 3022 is placed inside the frame structure, and the connecting plate 3022 is arranged close to the side away from the panel 2. The area of the frame structure is larger than the area of the connecting plate 3022. Further, the driving device 301 has a certain length, and the length direction thereof is parallel to the setting direction of the push-pull member 302. The driving device 301 is arranged below the push-pull member 302, and there is a certain distance between the driving device 301 and the push-pull member 302 in the vertical direction.

[0057] Further, the driving mechanism further includes a slider 303. The slider 303 is connected to the driving end of the driving device 301, and one end of the push-pull member 302 is connected to the slider 303. Specifically, the bottom surface of the slider 303 is connected to the driving end of the driving device 301, and the top surface of the slider 303 is connected to one end of the push-pull member 302. For the convenience of structural arrangement, the slider 303 is located between the two push-pull rods 3021, so the top surface of the slider 303 is connected to the connecting plate 3022.

[0058] The position detection mechanism is arranged on the mounting plate 1 and on one side of the driving mechanism. The position detection mechanism is used to detect whether the panel 2 is closed in place. For the convenience of structural arrangement, the position detection mechanism is arranged in parallel with the driving mechanism and at an interval. The position detection mechanism includes a detection component 401 and a trigger component 402. The detection component 401 is arranged on the mounting plate 1, and the trigger component 402 is arranged on the side of the push-pull member 302 facing the detection component 401. When the trigger component 402 contacts the detection component 401, the position of the panel 2 is the closed position or the position about to be closed.

[0059] Specifically, a fixing plate 6 is provided on the mounting plate 1. The fixing plate 6 is perpendicularly arranged with respect to the mounting plate 1. The detecting component 401 is arranged on one side of the fixing plate 6. The top of the detecting component 401 has a detecting portion 4011. The triggering component 402 is arranged on the side of the connecting plate 3022 facing the detecting component 401 (i.e., on the bottom surface of the connecting plate 3022). During the closing process of the panel 2, when the triggering component 402 contacts the detecting portion 4011, the triggering component 402 can be triggered, enabling the triggering component 402 to detect a signal. At this time, the panel 2 is in the closed position or about to be in the closed position. In this embodiment, the detecting component 401 adopts a microswitch, which has high detection accuracy and can meet the usage requirements.

[0060] Further, the triggering component 402 has a certain length, and its length direction is parallel to the moving direction of the panel 2. To ensure a tight structural cooperation relationship, the distance between the panel 2 and the end of the triggering component 402 away from the panel 2 is D; during the closing process of the panel 2, when the end of the triggering component 402 away from the panel 2 triggers the detecting component 401 (the initial trigger), the distance between the panel 2 and the front frame 5 is F, where L < F < S, L being the blocked-rotor detection response distance and S being the standard diameter of the human test finger; the distance between the front frame 5 and the detecting portion 4011 of the detecting component 401 is K. When the panel 2 is completely closed, D - F > K.

[0061] Considering the structural tolerance G, the distance F between the panel 2 and the front frame 5 satisfies L + G < F < S - G, and the distance K between the front frame 5 and the detecting portion 4011 of the detecting component 401 satisfies D - F - G > K when the panel 2 is completely closed, where G is the tolerance. In addition, the length of the triggering component 402 along the moving direction of the panel 2 is E, and E > D - K. Considering the structural tolerance G, E > D - K + G, where G is the tolerance. It should be noted that G is the absolute value of the tolerance of each component of the system.

[0062] As Figure 5 shown, this embodiment also provides a closing control method for the opening and closing mechanism of this embodiment, including:

[0063] Step SO1, the driving device drives the panel 2 to move in the closing direction with a duty cycle P n (n = 1 + i, i is a natural number and the initial value is 0);

[0064] In this step, the driving device, i.e., the motor rotates forward, n = 1, and the driving device drives the panel 2 to move in the closing direction with a duty cycle P1. The closing direction is the Figure 2 left arrow direction in

[0065] Step SO2, detect the state T of the position detection mechanism and the current X corresponding to the current duty cycle;

[0066] Among them, the state T of the position detection mechanism has two state values:

[0067] T1 indicates that the detection is not triggered, that is, the triggering component 402 does not contact the detection component 401, and the detection component 401 is not triggered;

[0068] T2 indicates that the detection is triggered, that is, the triggering component 402 contacts the detection component 401, causing the detection component 401 to be triggered.

[0069] The current X corresponding to the current duty cycle, in this embodiment, is the motor current corresponding to the duty cycle P1.

[0070] Step SO3, when T = T1, determine whether X = X n or X < X n (n = 1 + i, i is a natural number and the initial value is 0), where T1 indicates that the detection is not triggered, and X n is the locked-rotor current corresponding to the current duty cycle;

[0071] Set P1 < P2 <... < P n < P z , and the corresponding X1 < X2 <... < X n < X z , where P z is the 100% duty cycle of the motor output, and X z is the locked-rotor current value when the motor output is at 100% duty cycle.

[0072] When the state T of the position detection mechanism is T1, determine whether the current X corresponding to the current duty cycle is X = X n or X < X n , at this time n = 1, that is, determine whether X = X1 or X < X1, and X1 is the locked-rotor current value corresponding to the current duty cycle.

[0073] Step SO4, if T = T1 and X = X n , then the panel has clamped an object, and the driving device drives the panel 2 to move in the opening direction, making i = i + 1, and repeating the above steps;

[0074] In this step, if T = T1 and X = X1, then the panel has clamped an object, which may be the user's finger, etc. The driving device, that is, the motor, reverses and drives the panel 2 to move in the opening direction, and the opening direction is Figure 2 the right arrow direction in

[0075] so as to release the clamped object, and at the same time make i = i + 1, and repeat the above steps S01 - S04.

[0076] Step SO5, if T = T1 and X < X n , then continue to detect the status T of the position detection mechanism and the current X corresponding to the duty cycle;

[0077] In this step, if T = T1 and X < X1, it means that the panel does not clamp an object, and continue to detect the status T of the position detection mechanism and the current X corresponding to the duty cycle.

[0078] Step SO6, when T = T2, determine whether X < X n or X ≥ X n , where T2 represents trigger detection;

[0079] When the status T of the position detection mechanism is T2, determine whether the current X corresponding to the duty cycle is < X n or X ≥ X n , at this time n = 1, that is, determine whether X = < X1 or X ≥ X1, and X1 is the locked-rotor current value corresponding to the current duty cycle.

[0080] Step SO7, if T = T2 and X < X n , the driving device continues to drive the panel 2 to move in the closing direction, and continue to detect the status T of the position detection mechanism and the current X corresponding to the duty cycle;

[0081] In this step, if T = T2 and X < X1, it means that it has not been closed in place yet. The driving device continues to drive the panel 2 to move in the closing direction, and continue to detect the status T of the position detection mechanism and the current X corresponding to the duty cycle.

[0082] Step SO7, if X ≥ X when T = T2 n , then the panel 2 is completely closed.

[0083] In this step, if X ≥ X1 when T = T2, it means that the panel 2 has been closed in place, that is, the panel 2 is completely closed.

[0084] Through the logical control of the above closing control method, the probability of clamping the user during the panel closing process can be reduced, the safety during the user's use can be improved, the potential safety hazards can be eliminated, and it can accurately detect whether the panel is closed in place, improving the user experience.

[0085] This embodiment also provides a household appliance, including a housing and a mounting plate 1 provided on the upper surface of the housing. The opening and closing mechanism provided in this embodiment is arranged on the mounting plate 1. In addition, a panel 2 is provided on one side of the upper surface of the housing, and this panel 2 is a control panel. In this embodiment, the household appliance is a steam oven. A water tank is arranged behind the panel 2. When it is necessary to fill water into the water tank, the panel 2 needs to be opened, and after the water filling is completed, the panel 2 needs to be closed. Of course, this steam oven also has other structures and components that existing steam ovens all have. Since these structures and components are not involved in the present invention, they will not be elaborated here.

[0086] During the closing process of the panel 2 of this household appliance, it can accurately detect whether it is closed in place through the position detection mechanism, and can effectively prevent pinching the user, improve the safety of using the appliance, meet the user's usage requirements, and enhance the user's usage experience.

[0087] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An opening and closing mechanism, characterized in that, It is installed on the mounting plate (1) of the household appliance and is used to drive the panel (2) to open and close. The opening and closing mechanism includes: A driving mechanism is arranged on the mounting plate (1). The driving end of the driving mechanism is connected to the panel (2) and drives the panel (2) to move linearly back and forth. A position detection mechanism is arranged on the mounting plate (1) and on one side of the driving mechanism. The position detection mechanism is used to detect whether the panel (2) is closed in place. The position detection mechanism includes a detection component (401) and a triggering component (402). The distance between the panel (2) and the end of the triggering component (402) far from the panel (2) is D. During the closing process of the panel (2), when the end of the triggering component (402) far from the panel (2) triggers the detection component (401), the distance between the panel (2) and the front frame (5) is F, where L < F < S, and L is the blocked-rotor detection reaction distance, and S is the standard diameter of the human test finger. The distance between the front frame (5) and the detection part (4011) of the detection component (401) is K. When the panel (2) is completely closed, D - F > K; the length of the triggering component (402) along the moving direction of the panel (2) is E, and E > D - K.

2. The opening and closing mechanism according to claim 1, characterized in that, The driving mechanism includes a driving device (301) and a push-pull member (302). One end of the push-pull member (302) is connected to the driving end of the driving device (301), and the other end is connected to the panel (2). The driving device (301) drives the push-pull member (302) and the panel (2) to move linearly back and forth.

3. The opening and closing mechanism according to claim 2, characterized in that, The detection component (401) is arranged on the mounting plate (1), and the triggering component (402) is arranged on the side of the push-pull member (302) facing the detection component (401). When the triggering component (402) contacts the detection component (401), the panel (2) is closed.

4. The opening and closing mechanism according to claim 3, characterized in that, The push-pull member (302) includes two push-pull rods (3021) arranged at intervals and a connecting plate (3022) connecting the two push-pull rods (3021). The triggering component (402) is arranged on the side of the connecting plate (3022) facing the detection component (401).

5. The opening and closing mechanism according to claim 3, characterized in that, The driving device (301) drives the panel (2) to move horizontally linearly back and forth and open and close relative to the front frame (5). The front frame (5) is perpendicular to the mounting plate (1).

6. The opening and closing mechanism according to claim 1, wherein The distance F between the panel (2) and the front frame (5) satisfies L + G < F < S - G. The distance K between the front frame (5) and the detection part (4011) of the detection component (401) satisfies D - F - G > K when the panel (2) is completely closed, where G is the tolerance.

7. The opening and closing mechanism according to claim 1, characterized in that, The length of the triggering component (402) along the moving direction of the panel (2) is E, and E > D - K + G, where G is the tolerance.

8. The opening and closing mechanism according to claim 3, characterized in that, A fixing plate (6) is arranged on the mounting plate (1). The fixing plate (6) is perpendicular to the mounting plate (1), and the detection component (401) is arranged on the fixing plate (6).

9. The opening and closing mechanism according to any one of claims 3-8, characterized in that, The detection component (401) is a micro switch.

10. The opening and closing mechanism according to claim 2, wherein, The driving mechanism further includes a slider (303), the slider (303) is connected to the driving end, and one end of the push-pull member (302) is connected to the slider (303).

11. A closing control method for the opening and closing mechanism according to any one of claims 1-10, characterized in that, Comprising: The driving device drives the panel (2) to move in the closing direction with a duty ratio P n (n = 1 + i, where i is a natural number and its initial value is 0). Detecting the state T of the position detection mechanism and the current X corresponding to the current duty cycle; When T = T1, determine whether X = X n or X < X n (n = 1 + i, where i is a natural number and its initial value is 0), where T1 represents no trigger detection, and X n is the locked-rotor current corresponding to the current duty cycle; If T = T1 and X = X n , the panel clamps the object, the driving device drives the panel (2) to move in the opening direction, making i = i + 1, and repeating the above steps; If T = T1 and X < X n , continue to detect the status T of the position detection mechanism and the corresponding current X at the current duty cycle; When T = T2, determine whether X < X n or X ≥ X n , where T2 represents trigger detection; If T = T2 and X < X n , the driving device continues to drive the panel (2) to move in the closing direction, and continues to detect the state T of the position detection mechanism and the current X corresponding to the current duty cycle; If X ≥ X when T = T2 n , then the panel (2) is fully closed.

12. The closing control method according to claim 11, characterized in that, In the case where T = T1 and X = X n , the panel clamps the object, and the driving device drives the panel (2) to move in the opening direction, making i = i + 1. In the step of repeating the above steps, the driving device drives the panel (2) to move in the opening direction until the panel (2) is fully opened.

13. A household appliance, characterized in that, It includes a housing and a mounting plate (1) arranged on the upper surface of the housing, and the opening and closing mechanism as described in any one of claims 1-10 is arranged on the mounting plate (1).

14. The household appliance according to claim 13, wherein, The household appliance is a steam oven.

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