Radiation-proof microwave oven and control method thereof

Abstract

The application provides a radiation-proof microwave oven and a control method thereof, and belongs to the technical field of kitchen appliances. The radiation-proof microwave oven comprises a microwave oven main body, a door body assembly, a door handle, a sensing assembly and a controller. The door body assembly is arranged on the opening end of the microwave oven main body in an openable and closable mode. The door handle is connected to the outer side of the door body assembly. The sensing assembly is connected to the door handle and is used for sensing whether the door handle is touched. The controller is connected to the sensing assembly and configures the microwave oven main body to a standby state according to the signal of the sensing assembly. The application can solve the problem of microwave leakage exceeding the standard in the moment when the door body is opened, improve the qualified rate of products, protect the health of users and improve the performance of products.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a radiation-proof microwave oven and its control method. Background Technology

[0002] Microwave ovens are common cooking appliances that heat food by evenly distributing microwave energy within the cooking cavity. Because microwave radiation can affect multiple systems in the human body, including the nervous, cardiovascular, and digestive systems, as well as eye tissues, microwave leakage in microwave ovens mainly occurs around the door. Therefore, to prevent microwave leakage, the oven door must be closed during operation to shield the resonant cavity.

[0003] However, in existing technologies, the current door structure requires being pulled to a certain angle before the rotating shaft can release the door control switch, preventing immediate disconnection and causing the microwaves to fail to stop working promptly. During the process of pulling the oven door until the door control switch disconnects, the door changes from a tightly closed state to a state with a larger gap. At this point, the microwave shielding effect of the door deteriorates, and microwave leakage becomes several times or even tens of times greater than normal. From a safety perspective, it is desirable to minimize the opening angle when the door control switch disconnects. This requires the door hook to be able to drive the rotating shaft to a large rotation angle with a small displacement. However, this can easily cause the door interlock to become overly sensitive, leading to incorrect identification of the open / closed state. If the rotating shaft cannot press the door control switch when the door is closed, the microwaves will not work, affecting product stability. Therefore, a solution is needed to address the microwave leakage problem during the door opening process. Summary of the Invention

[0004] The first technical problem to be solved by this invention is to provide a radiation-proof microwave oven that can predict changes in the door's state and cut off the microwave function in advance, thereby solving the problem of excessive microwave leakage when the door is opened, improving the product's pass rate, protecting the user's health, and improving the product's performance, in light of the current state of the technology.

[0005] The second technical problem to be solved by the present invention is to provide a control method for the aforementioned radiation-proof microwave oven.

[0006] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a radiation-proof microwave oven, the radiation-proof microwave oven comprising:

[0007] Microwave oven body;

[0008] The door assembly is located at the opening end of the microwave oven body;

[0009] A door handle is attached to the outside of the door assembly;

[0010] A sensing component, connected to the door handle, is used to sense whether the door handle is being touched;

[0011] A controller is connected to the sensing component and configures the microwave oven body to standby mode based on the signal from the sensing component.

[0012] According to one embodiment of the present invention, the sensing component is a touch switch, and the touch switch is connected to the side of the door handle near the door body component.

[0013] According to one embodiment of the present invention, the radiation-proof microwave oven further includes an interlocking switch structure, the interlocking switch structure comprising:

[0014] Door hook, connected to the door body;

[0015] An interlocking bracket is connected to the front panel of the microwave oven body;

[0016] The locking block component is rotatably connected to the interlocking bracket, and the locking block component can lock or unlock the door hook;

[0017] A door control switch is mounted on the interlocking bracket. When the lock block component locks or unlocks the door hook, the lock block component triggers or resets the door control switch.

[0018] According to one embodiment of the present invention, the interlocking bracket includes a mounting plate, the outer periphery of which is provided with an upward flange, and a first through hole is provided on the side of the flange near the door assembly, the door hook passing through the first through hole and contacting or disengaging from the lock block component.

[0019] According to one embodiment of the present invention, the interlocking bracket further includes a limiting structure for limiting the door control switch. The limiting structure includes a third limiting block and a fourth limiting block, which are disposed on the outer periphery of the door control switch to limit the door control switch in a direction perpendicular to the mounting plate.

[0020] According to one embodiment of the present invention, the limiting structure further includes a third limiting block and a fourth limiting block, the third limiting block and the fourth limiting block being disposed on the outer periphery of the door control switch to limit the door control switch in a direction perpendicular to the mounting plate.

[0021] According to one embodiment of the present invention, the locking block component includes:

[0022] The main body of the locking block is rotatably connected to the interlocking bracket;

[0023] The latch is fixed to the main body of the lock block. The latch includes a first protrusion for engaging with the door hook. The door hook has a groove corresponding to the first protrusion. The first protrusion can be inserted into and slidably connected to the groove. As the door assembly is opened, the first protrusion disengages from the groove.

[0024] According to one embodiment of the present invention, the locking block component further includes a toggle block fixed to the locking block body. The toggle block includes a second protrusion for engaging with the door hook. A third protrusion engaging with the second protrusion is connected to the side of the slide away from the front door panel. The third protrusion moves with the door hook toward the second protrusion and can push the second protrusion and the toggle block to rotate.

[0025] During the process of the third protrusion pushing the second protrusion to rotate, the first protrusion inserts into the slide groove, and the lock block body triggers the door control switch.

[0026] According to one embodiment of the present invention, the distance between the first protrusion and the second protrusion in the projection direction of the side of the microwave oven body is h, the length of the third protrusion is a, and the length of the groove is b, wherein 0.3mm≤ha≤0.5mm, 1.5h≤b≤2h.

[0027] According to one embodiment of the present invention, in the open state, the distance between the free end of the first protrusion and the plane on the side of the door hook near the lock block component is 0.5 mm.

[0028] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: a radiation-proof microwave oven control method, the radiation-proof microwave oven control method comprising:

[0029] The sensor component is used to detect whether the door handle is being touched.

[0030] If the door handle is touched, the sensing component sends a signal to the controller;

[0031] The controller receives the signal from the sensing component and stops the microwave generating unit from operating.

[0032] According to one embodiment of the present invention, the control method further includes:

[0033] The state of the door assembly is determined using an interlocking switch structure.

[0034] If the door handle is touched or the door assembly is in the open state, the microwave generating unit stops working;

[0035] If the door handle is not touched and the door assembly is in the closed state, the microwave generating unit is in standby mode.

[0036] According to one embodiment of the present invention, the control method further includes:

[0037] When the door is in the open state, the door assembly is open, the rotating block is in the first position, the door control switch pops open and cuts off the microwave circuit, and the microwave function cannot be started.

[0038] When the door is closed, the door assembly is closed, the rotating block is in the second position and presses against the door control switch, and the door control switch connects the microwave circuit.

[0039] Compared with the prior art, the present invention has the following advantages or beneficial effects:

[0040] The present invention uses the sensing component and the controller to predict changes in the door state and cut off the microwave function in advance, thereby solving the problem of excessive microwave leakage at the moment the door is opened, improving the product qualification rate, protecting the user's health, and improving product performance. Attached Figure Description

[0041] The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0042] Figure 1 This is a schematic diagram of a radiation-proof microwave oven according to an exemplary embodiment.

[0043] Figure 2 This is a top view of an interlocking switch structure according to an exemplary embodiment.

[0044] Figure 3 This is a perspective view of an interlocking switch structure according to an exemplary embodiment.

[0045] Figure 4 This is a schematic diagram of the connection of the door hook, interlocking bracket and rotating block according to an exemplary embodiment. Figure 5 This is a schematic diagram of a locking block component according to an exemplary embodiment.

[0046] Figure 6 This is a schematic diagram of a door hook according to an exemplary embodiment.

[0047] Figure 7 This is a schematic diagram of a radiation-proof microwave oven control method according to an exemplary embodiment. Attached image description:

[0049] 1. Microwave oven body; 2. Door assembly; 3. Door handle; 4. Sensor assembly; 5. Interlocking switch structure; 51. Door hook; 511. Slide groove; 512. Third protrusion; 52. Interlocking bracket; 521. Mounting plate; 522. Flanged edge; 5221. First through hole; 53. Lock block assembly; 531. Lock block body; 532. Lock tongue; 5321. First protrusion; 533. Actuating block; 53331. Second protrusion; 54. Door control switch; 55. Limiting structure; 551. First limiting block; 5511. First limiting groove; 552. Second limiting block; 5521. Second limiting groove; 553. Third limiting block; 554. Fourth limiting block; 56. Torsion spring. Detailed Implementation

[0050] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0051] The terms “a,” “one,” “the,” and “” are used to indicate the existence of one or more elements / components / etc.; the terms “include” and “have” are used to indicate an open-ended meaning of inclusion and that there may be other elements / components / etc. in addition to the listed elements / components / etc.

[0052] This invention provides a radiation-proof microwave oven, such as... Figure 1-6 As shown, the anti-radiation microwave oven includes a microwave oven body 1, a door assembly 2, a door handle 3, a sensor assembly 4, and a controller. The door assembly 2 is located at the opening end of the microwave oven body 1. The door handle 3 is connected to the outside of the door assembly 2, and the sensor assembly 4 is connected to the door handle 3 to sense whether the door handle 3 is touched. The controller is connected to the sensor assembly 4 and configures the microwave oven body 1 to a working state or a standby state based on the signal from the sensor assembly 4. In the prior art, the door assembly 2 needs to be pulled to a certain angle before the door control switch can be released; it cannot be immediately disconnected. Generally, when the door gap is opened to about 1mm-3mm, the door hook 51 releases the door control switch 54, the microwave circuit is disconnected, and the microwave stops working. Furthermore, the microwave leakage of a well-assembled microwave oven is mainly around the door, especially affected by the door gap. Generally, when the door gap is greater than 1mm, the leakage value tends to increase exponentially. Therefore, the door-opening process increases the risk of microwave leakage and the harm to human health. Currently, the national standard requires that the leakage of a microwave oven door should not exceed 10mw / cm². 2Therefore, the present invention mainly addresses the issue of increased microwave leakage during the opening and closing of doors in existing structures due to the inability to cut off microwaves in a timely manner. By adding a sensing component 4 to the door handle 3, the invention detects whether the door handle is touched. If the door handle 3 is touched, it indicates that the door assembly 2 may be about to open. The sensing component 4 sends a signal to the controller, which configures the microwave oven body 1 into standby mode. In this mode, except for the microwave generating unit, everything else in the microwave oven operates normally, such as the display screen and function selection buttons. The purpose of this design is to prevent microwave leakage during the opening and closing of the door assembly 2. If the sensing component 4 is not touched, the microwave oven operates normally according to other procedures. In other words, this application can cut off the microwaves immediately before the door is opened, i.e., when the door control switch 54 is touched. Even if the door gap is large, microwave leakage will not occur. Therefore, the design of the door control switch 54 does not need to excessively consider the minimum door gap when the door control switch 54 is disconnected, allowing the focus to be on the reliability of the judgment between the closed and open states, resulting in more stable performance. The door interlocking structure design is also more stable.

[0053] In a preferred embodiment of the present invention, such as Figure 1 The sensing component 4 shown is a touch switch, which is connected to the side of the door handle 3 closest to the door assembly 2. This application adds a touch switch to the door handle 3, which is connected to a controller. When a hand touches the touch switch, the switch sends a signal to the controller. The controller anticipates a change in the door's state, determines the door is open, and stops microwave operation, minimizing microwave leakage. Furthermore, placing the sensing component 4 on the side of the door handle 3 closest to the door assembly 2 also prevents accidental touches by the user from stopping microwave operation.

[0054] In a preferred embodiment of the present invention, such as Figure 1-6The radiation-proof microwave oven shown is characterized by further including an interlocking switch structure 5. The interlocking switch structure 5 includes a door hook 51, an interlocking bracket 52, a locking block component 53, and a door control switch 54. The door hook 51 is connected to the door body; the interlocking bracket 52 is connected to the front plate of the microwave oven body 1; the locking block component 53 is rotatably connected to the interlocking bracket 52; the locking block component 53 can lock or unlock with the door hook 51; the door control switch 54 is disposed on the interlocking bracket 52; when the locking block component 53 locks or unlocks the door hook 51, the locking block component 53 triggers or resets the door control switch 54. When the door is open, the door hook 51 is not connected to the locking block component 53, the locking block component 53 is in the first position, and the locking block component 53 is not in contact with the door control switch 54. At this time, the microwave circuit is disconnected, and the microwave function cannot be started. When the door is closed, the door hook 51 on the door assembly 3 passes through the through hole in the front panel of the microwave oven body 1 and abuts against the locking block component 53, causing the locking block component 53 to rotate clockwise, pressing the door control switch 54. At this time, the locking block component 53 is in the second position, and the microwave circuit is connected, and the microwave function can work normally according to the electronic control program. When the door is opened during microwave operation, as the opening angle of the door assembly 2 increases, the door hook 51 rotates counterclockwise with the door assembly 2, causing the locking block component 53 to gradually release the door control switch 54. When the door hook 51 releases the locking block component 53, the locking block component 53 is no longer in contact with the door control switch 54. At this time, the microwave circuit is disconnected, and the microwave operation stops. It should be noted that the interlocking switch structure 5 of this application also includes an elastic element. When the door is opened, as the door hook 51 disengages from the lock block component 53, the lock block component 53 automatically rebounds under the action of the elastic element and releases the contact of the door control switch 54. At this time, the microwave circuit is disconnected and the microwave function cannot be started.

[0055] In addition, the interlocking switch structure 5 also includes a torsion spring 56. Under the action of the torsion spring 56, the locking block component 53 will pull the door hook 51 towards the rear of the microwave oven, so that the door assembly 2 is automatically tightened, reducing the gap between the door assembly 2 and the microwave oven body 1 in the closed state, and preventing microwave leakage.

[0056] In a preferred embodiment of the present invention, such as Figure 1-6 The interlocking bracket 52 shown includes a mounting plate 521. The outer periphery of the mounting plate 521 has an upward-facing flange 522. A first through hole 5221 is formed on the side of the flange 522 closest to the door assembly 2. The door hook 51 passes through the first through hole 5221 and contacts or disengages from the lock block component 53. This application utilizes the flange 522 to enhance the structural strength and stability of the interlocking bracket 52, and also ensures smooth operation during door opening and closing.

[0057] In a preferred embodiment of the present invention, such as Figure 1-4The interlocking bracket 52 shown also includes a limiting structure 55 for limiting the door control switch 54. The limiting structure 55 includes a first limiting block 551 and a second limiting block 552. The first limiting block 551 and the second limiting block 552 are disposed on the outer periphery of the door control switch 54 to limit the door control switch 54 in a direction parallel to the mounting plate 521. In this embodiment, the first limiting block 551 is connected to the flange 522 and forms a first limiting groove 5511 with the flange 522 for limiting the door control switch 54; the second limiting block 552 is connected to the mounting plate 521 and has a second limiting groove 5521 for limiting the door control switch 54. The first limiting groove 5511 and the second limiting groove 5521 are arranged opposite to each other to form a limiting surface for limiting the door control switch 54 in the horizontal direction. In this embodiment, the horizontal direction is the direction parallel to the mounting plate 521. Figure 3-5 As shown, the door control switch 54 in this application is rectangular. The first limiting block 551 and the second limiting block 552 are located at two opposite corners of the door control switch 54, respectively. During installation, the door control switch 54 can be simply inserted between the first limiting slot 5511 and the second limiting slot 5521, making the connection simple and quick. If the door control switch 54 is irregularly shaped, it is recommended that one or more first limiting blocks 551 and second limiting blocks 552 be provided to limit multiple corners or sides of the door control switch 54. That is, the inner walls of the first limiting slot 5511, the second limiting slot 5521, and the mounting plate 521 form a limiting cavity corresponding to the outer periphery of the door control switch 54. The top and side walls of this limiting cavity have multiple openings, which facilitates the installation and removal of the door control switch 54 and also reduces the weight of the product.

[0058] In a preferred embodiment of the present invention, such as Figure 2-4 The limiting structure 55 shown also includes a third limiting block 553 and a fourth limiting block 554, which are disposed on the outer periphery of the door control switch 54 to limit the door control switch 54 in a direction perpendicular to the mounting plate 521. Figure 2-4 The third limiting block 553 and the fourth limiting block 554 shown are respectively disposed on both sides of the door control switch 54. The third limiting block 553 and the fourth limiting block 554 can abut against the top surface of the door control switch 54 to prevent the door control switch 54 from coming out. The third limiting block 553 and the fourth limiting block 554 can be made of plastic such as ABS and PP and have a certain degree of deformation. During installation, the door control switch 54 is pressed down and locked into the lower part of the third limiting block 553 and the fourth limiting block 554 to further fix the door control switch 54. Compared with bolt fixing, this not only reduces the number of parts, but also facilitates installation.

[0059] In a preferred embodiment of the present invention, such as Figure 2-6The lock block component 53 shown includes a lock block body 531 and a latch 532. The lock block body 531 is rotatably connected to the interlocking bracket 52, and the latch 532 is fixedly connected to the lock block body 531. The latch 532 includes a first protrusion 5321 for engaging with a door hook 51. The door hook 51 has a groove 511 corresponding to the first protrusion 5321. The first protrusion 5321 can be inserted into and slidably connected to the groove 511. As the door assembly 2 is opened, the first protrusion 5321 disengages from the groove 511. As the door hook 51 moves outward, the third protrusion 512 disengages from the second protrusion 5331. It is due to the sliding engagement of the first protrusion 5321 and the groove 511 that the door hook 51 can drive the lock block body 531 and the latch 532 to rotate. However, since the door hook 51 moves in a straight line and the first protrusion 5321 moves in an arc, when the door is opened, the first protrusion 5321 will disengage from the slide groove 511 and return to its original position under the action of the torsion spring 56; at the same time, the door assembly 2 will spring outward under the action of the hinge to realize the opening of the door. The structure is reasonable and the response is flexible.

[0060] In a preferred embodiment of the present invention, such as Figure 2-6 The lock block component 53 shown also includes a toggle block 533 fixed to the lock block body 531. The toggle block 533 includes a second protrusion 5331 for engaging with the door hook 51. A third protrusion 512 that engages with the second protrusion 5331 is connected to the side of the slide groove 511 away from the front door panel. The third protrusion 512 moves with the door hook 51 toward the second protrusion 5331 and can push the second protrusion 5331 and the toggle block 533 to rotate. During the process of the third protrusion 512 pushing the second protrusion 5331 to rotate, the first protrusion 5321 is inserted into the slide groove 511, and the lock block body 531 triggers the door control switch 54. During the closing process, the second protrusion 5331, along with the movement of the door hook 51, first passes through the through hole 5221 and continues to move towards the second protrusion 5331 and abuts against the second protrusion 5331; as the door hook 51 continues to move, the third protrusion 512 moves towards the second protrusion 5331 along with the door hook 51. The third protrusion 512 can push the second protrusion 5331 and the toggle part 533 to rotate. During this process, the first protrusion 5321 inserts into the slide groove 511 until the door hook 51 moves into place. The lock block body 531 triggers the door control switch 54. At the same time, the door control switch 54 connects to the microwave circuit.

[0061] In a preferred embodiment of the present invention, such as Figure 2-6The distance between the first protrusion 5321 and the second protrusion 5331 projected onto the side of the microwave oven body 1 is h, the length of the third protrusion 512 is a, and the length of the slide groove 511 is b, wherein 0.3mm ≤ ha ≤ 0.5mm, and 1.5h ≤ b ≤ 2h. Because there is an opening between the first protrusion 5321 and the second protrusion 5331, the distance h between the first protrusion 5321 and the second protrusion 5331 projected onto the side of the microwave oven body 1 is also the minimum distance of the opening. Specifically, the distance h between the first protrusion 5321 and the second protrusion 5331 projected onto the side of the microwave oven body 1 must be greater than the length a of the third protrusion 512 by 0.3mm ≤ ha ≤ 0.5mm. This design prevents the door hook 51 from being locked in place. The length b of the slide groove 511 is 1.5 to 2 times h1, which prevents the rotating shaft from being jammed when the door is opened. Furthermore, it should be noted that all lengths in this application are the maximum lengths along the movement direction of the door hook 51. (See details...) Figure 5 and 6 .

[0062] In a preferred embodiment of the present invention, such as Figure 2-6 As shown, in the open state, the distance between the free end of the first protrusion 5321 and the plane of the door hook 51 near the lock block component is 0.5mm. Thus, when the door is opened, the free end of the first protrusion 5321 will avoid the movement trajectory of 51, so a gap of about 0.5mm needs to be reserved.

[0063] This invention provides a control method for an anti-radiation microwave oven, such as... Figure 7 The control methods shown include:

[0064] Step s100: Use the sensing component 4 to detect whether the door handle 3 is touched; The sensing component 4 of this application is a touch switch. When the user needs to open the door assembly 2, the door is generally opened by touching the door handle 3 and pulling it outward. Therefore, this application determines whether the door handle 3 is touched by adding the sensing component 4 to the door handle 3.

[0065] Step s200: If the door handle 3 is touched, the sensing component 4 sends a signal to the controller. Since the sensing component 4 is located inside the door handle 3, when the touch switch is triggered, it indicates that there is a door opening and closing action. At this time, the sensing component 4 sends a signal to the controller.

[0066] Step s300: The controller receives the signal from the sensing component 4 and stops the microwave generating unit from operating. In other words, this application adds a sensing component 4 to the door handle, which predicts a change in the door opening state when a hand touches it. The sensing component 4 then sends a feedback signal to the controller, which sequentially terminates the microwave operation. This effectively prevents a surge in microwave leakage during the process of pulling the door until the door control switch 54 is disconnected, reducing microwave leakage at the moment the door opens, enhancing user health protection, and improving product yield. Furthermore, the door control switch 54 is designed without excessive consideration of door gap breakpoints, allowing the focus to be on the reliability of both the closed and open states, resulting in more stable performance.

[0067] In a preferred embodiment of the present invention, the control method further includes: using the interlocking switch structure 5 to determine the state of the door assembly 2; if the door handle 3 is touched or the door assembly 2 is in the open state, the microwave generating unit stops working; if the door handle 3 is not touched and the door assembly 2 is in the closed state, the microwave generating unit is in standby mode. Thus, during the door opening process, the microwave has two cutoff mechanisms: the touch switch cuts off the microwave through the controller, and the door control switch 54 cuts off the microwave through the circuit, making the product safer.

[0068] In a preferred embodiment of the present invention, when the door is open, the door assembly 2 is open, the locking block component 53 is in the first position, the door control switch 54 pops open and cuts off the microwave circuit, and the microwave function cannot be started; when the door is closed, the door assembly 2 is closed, the locking block component 53 is in the second position and presses against the door control switch 54, and the door control switch 54 connects the microwave circuit. In this application, when the door assembly 2 is open, the door control switch 54 disconnects the circuit and stops the microwave generating unit from working. When the door is closed, the door hook 51 on the door assembly 3 passes through the through hole in the front panel of the microwave oven body 1 and abuts against the locking block component 53, causing the locking block component 53 to rotate clockwise, so that the locking block component 53 presses against the door control switch 54. Figure 2-4 At this time, the microwave circuit is connected, and the microwave function can work normally according to the electronic control program. When the door is opened during microwave operation, as the opening angle of the door assembly 2 increases, the door hook 51 rotates counterclockwise with the door assembly 2, causing the lock block component 53 to gradually release the door control switch 54. When the door hook 51 releases the lock block component 53, the lock block component 53 and the door control switch 54 are no longer in contact. At this time, the microwave circuit is disconnected, and the microwave stops working. Therefore, the interlocking switch structure 5 in this application can realize the judgment of the working state of the door assembly 2, and at the same time use a micro switch to control the microwave circuit. In this way, in addition to cutting off the microwave operation before opening the door, the microwave can also be cut off through the interlocking switch structure 5. That is, the microwave has two cut-off mechanisms: the door handle 3 cuts off the microwave through the controller, and the door control switch 54 cuts off the microwave through the circuit, making the product safer.

[0069] Specifically, the following two processes are involved:

[0070] 1. Opening the door to cut off the microwave process

[0071] Before the hand touches the door handle 3, the door assembly 2 is closed and the microwave is running. As the hand touches the door handle 3, the touch switch is turned off. At this time, it is predicted that the door state will change, and the controller immediately stops the microwave operation. As the door assembly 2 is pulled open, the door control switch 54 is turned off, cutting off the microwave circuit. Finally, the hand leaves the door handle 3, and the touch switch is turned on. However, since the door control switch 54 has cut off the microwave circuit, the microwave function cannot be started.

[0072] 2. Microwave start-up process after door closing

[0073] Before the hand touches the door handle 3, the door assembly 2 opens and the microwave stops. Then the door assembly 2 closes, the door control switch 54 is turned on, and the microwave circuit is connected. However, before the hand leaves the door handle 3, the touch switch is turned off, and the controller stops the microwave from starting. When the hand leaves the touch switch on the door handle 3, both the door control switch 54 and the touch switch are turned on. At this time, the microwave can be started, and the microwave can be started through the control panel.

[0074] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0075] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0076] In the description of this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, various modifications and variations can be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention.

Claims

1. A radiation-proof microwave oven, characterized in that, include: Microwave oven body (1); The door assembly (2) is located at the opening end of the microwave oven body (1). The door handle (3) is connected to the outside of the door assembly (2); A sensing component (4) is connected to the door handle (3) and is used to sense whether the door handle (3) is touched; The controller is connected to the sensing component (4) and configures the microwave oven body (1) into standby mode according to the signal from the sensing component (4).

2. The radiation-proof microwave oven according to claim 1, characterized in that, The sensing component (4) is a touch switch, which is connected to the side of the door handle (3) near the door assembly (2).

3. The radiation-proof microwave oven according to claim 1, characterized in that, It also includes an interlocking switch structure (5), which includes: Door hook (51) is connected to the door body; Interlocking bracket (52) is connected to the front panel of the microwave oven body (1); The locking block component (53) is rotatably connected to the interlocking bracket (52), and the locking block component (53) can lock or unlock the door hook (51); A door control switch (54) is installed on the interlock bracket (52). When the lock block component (53) locks or unlocks the door hook (51), the lock block component (53) triggers or resets the door control switch (54).

4. The radiation-proof microwave oven according to claim 3, characterized in that, The interlocking bracket (52) includes a mounting plate (521), the outer periphery of which is provided with an upward flange (522), and the flange (522) has a first through hole (5221) on the side near the door assembly (2), and the door hook (51) passes through the first through hole (5221) and contacts or disengages from the lock block component (53).

5. The radiation-proof microwave oven according to claim 4, characterized in that, The interlocking bracket (52) further includes a limiting structure (55) for limiting the door switch (54). The limiting structure (55) includes a first limiting block (551) and a second limiting block (552). The first limiting block (551) and the second limiting block (552) are disposed on the outer periphery of the door switch (54) to limit the door switch (54) in a direction parallel to the mounting plate (521).

6. The radiation-proof microwave oven according to claim 5, characterized in that, The limiting structure (55) further includes a third limiting block (553) and a fourth limiting block (554), which are disposed on the outer periphery of the door control switch (54) to limit the door control switch (54) in a direction perpendicular to the mounting plate (521).

7. The radiation-proof microwave oven according to claim 3, characterized in that, The locking block component (53) includes: The main body of the locking block (531) is rotatably connected to the interlocking bracket (52); The latch (532) is fixed to the main body of the lock block (531). The latch (532) includes a first protrusion (5321) for engaging with the door hook (51). The door hook (51) has a groove (511) corresponding to the first protrusion (5321). The first protrusion (5321) can be inserted into and slidably connected to the groove (511). As the door assembly (2) is opened, the first protrusion (5321) disengages from the groove (511).

8. The radiation-proof microwave oven according to claim 7, characterized in that, The locking block component (53) further includes a toggle block (533) fixed to the locking block body (531). The toggle block (533) includes a second protrusion (5331) for engaging with the door hook (51). A third protrusion (512) engaging with the second protrusion (5331) is connected to the side of the slide groove (511) away from the front door panel. The third protrusion (512) moves with the door hook (51) toward the second protrusion (5331) and can push the second protrusion (5331) and the toggle block (533) to rotate. During the process of the third protrusion (512) pushing the second protrusion (5331) to rotate, the first protrusion (5321) inserts into the slide groove (511), and the lock block body (531) triggers the door control switch (54).

9. The radiation-proof microwave oven according to claim 8, characterized in that, The distance between the first protrusion (5321) and the second protrusion (5331) in the side projection direction of the microwave oven body (1) is h, the length of the third protrusion (512) is a, and the length of the groove (511) is b, wherein 0.3mm≤ha≤0.5mm, 1.5h≤b≤2h.

10. The radiation-proof microwave oven according to claim 7, characterized in that, When the door is open, the distance between the free end of the first protrusion (5321) and the plane of the door hook (51) near the lock block component is 0.5 mm.

11. A control method for an anti-radiation microwave oven, characterized in that, The control method is applied to the radiation-proof microwave oven as described in any one of claims 1-10, and the control method includes: The sensing component (4) is used to detect whether the door handle (3) is touched; If the door handle (3) is touched, the sensing component (4) sends a signal to the controller; The controller receives the signal from the sensing component (4) and stops the microwave generating unit from operating.

12. The control method according to claim 11, characterized in that, Also includes: The state of the door assembly (2) is determined by the interlocking switch structure (5); If the door handle (3) is touched or the door assembly (2) is in the open state, the microwave generating unit stops working; If the door handle (3) is not touched and the door assembly (2) is in the closed state, the microwave generating unit is in the standby state.

13. The control method according to claim 11, characterized in that, Also includes: When the door is open, the door assembly (2) is open, the rotating block (53) is in the first position, the door control switch (54) pops open and cuts off the microwave circuit, and the microwave function cannot be started; When the door is closed, the door assembly (2) is closed, the rotating block (53) is in the second position and presses against the door control switch (54), and the door control switch (54) connects the microwave circuit.

Images