Door lock device and cooking appliance

Abstract

The application provides a door lock device and a cooking appliance, wherein the door lock device comprises: a bracket for being mounted on a cabinet of the cooking appliance; a switch assembly mounted on the bracket, the switch assembly comprising: a plurality of switch pieces, at least part of the plurality of switch pieces being at the same height in the height direction of the bracket; a door hook for being mounted on a door body of the cooking appliance, the door hook being capable of moving relative to the switch assembly between a first position and a second position to trigger or turn off part of the plurality of switch pieces, in the case that the door hook is located at the second position, the door hook is capable of being connected to the switch assembly to lock the door body to the cabinet, in the case that the door hook is located at the first position, the door hook is capable of being separated from the switch assembly to unlock the door body from the cabinet; and a trigger piece for being mounted on the door body of the cooking appliance, the trigger piece being capable of moving relative to the switch assembly between a third position and a fourth position to trigger or turn off another part of the plurality of switch pieces.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to a door lock device and a cooking utensil. Background Technology

[0002] Existing door locks are large in size, with large distances between the switch components and between multiple door hooks, resulting in a large height that makes them unsuitable for small microwave ovens. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, the first objective of this invention is to provide a door lock device.

[0005] The second objective of this invention is to provide a cooking utensil.

[0006] To achieve at least one of the above objectives, according to a first aspect of the present invention, a door lock device is provided for use in a cooking appliance. The door lock device includes: a bracket for mounting to a housing of the cooking appliance; a switch assembly mounted on the bracket, the switch assembly including: a plurality of switch elements, wherein at least a portion of the plurality of switch elements is at the same height along the height direction of the bracket; a door hook for mounting to the door of the cooking appliance, the door hook being movable relative to the switch assembly between a first position and a second position to trigger or deactivate a portion of the plurality of switch elements; wherein when the door hook is in the second position, the door hook is connected to the switch assembly to lock the door to the housing, and when the door hook is in the first position, the door hook is disengaged from the switch assembly to unlock the door from the housing; and a trigger element for mounting to the door of the cooking appliance, the trigger element being movable relative to the switch assembly between a third position and a fourth position to trigger or deactivate another portion of the plurality of switch elements.

[0007] This application discloses a door lock device for use in cooking appliances. The door lock device includes a bracket, a switch assembly, a door hook, and a trigger. The switch assembly is mounted on the bracket, and the door hook and trigger are movable relative to the bracket and switch assembly. The switch assembly includes multiple switches, and the door hook and trigger are capable of actuating or deagenting corresponding switches. Specifically, the cooking appliance in which the door lock device is used includes a cabinet and a door. The bracket assembly is mounted on the cabinet, the switch assembly is mounted on the bracket, and the door hook and trigger are both mounted on the door. The door is movable relative to the cabinet between different positions to open or close the cabinet. When the door is closed, the door can move the door hook and trigger toward the switch assembly. When the door is open, the door can move the door hook and trigger away from the switches, so that the door hook and trigger can actuate or deagent the corresponding switches.

[0008] Furthermore, the multiple switching components are defined such that, along the height direction of the bracket, at least a portion of some of the switching components are at the same height, meaning that at least some of the switching components overlap along the height direction of the bracket. This reduces the overall height of the switching assembly, thereby reducing the distance between the door hook and the trigger element used to activate the switching component. This results in a more compact and efficient overall layout of the door lock device, enabling its use in small cooking appliances.

[0009] Furthermore, the door hook is movable between a first position and a second position to trigger or deactivate a portion of the multiple switching components. Specifically, the door of the cooking appliance can move the door hook relative to the switching assembly. When the door is closed, the door moves the door hook to the second position, where the door hook contacts the switching assembly, triggering or deactivating a portion of the switching components. When the door hook is in the second position, the state of a portion of the multiple switching components changes; specifically, the state of these switching components changes from deactivated to activated (i.e., triggered), or from activated (i.e., triggered) to deactivated. When the door is open, the door moves the door hook to the first position, separating the door hook from the switching assembly, and the state of these switching components changes; specifically, the state of these switching components changes from activated (i.e., triggered) to deactivated, or from deactivated to activated (i.e., triggered).

[0010] Furthermore, the trigger can move between the third and fourth positions to trigger or deactivate another portion of the multiple switching components. Specifically, the door of the cooking appliance can move the trigger relative to the switching assembly. When the door is closed, the door moves the trigger to the fourth position, where the trigger contacts the switching assembly, triggering or deactivating another portion of the switching components. When the trigger is in the fourth position, the state of the other portion of the multiple switching components changes; specifically, the state of this portion of the switching components changes from deactivated to activated (i.e., triggered), or from activated (i.e., triggered) to deactivated. When the door is open, the door moves the trigger to the third position, separating the trigger from the switching assembly, and the state of this portion of the switching components changes; specifically, the state of this portion of the switching components changes from activated (i.e., triggered) to deactivated, or from deactivated to activated (i.e., triggered).

[0011] Furthermore, the door hook can also be used to lock the door to the housing. Specifically, when the door hook is in the second position, it can be connected to the switch assembly to lock the door to the housing; when the door hook is in the first position, it can be separated from the switch assembly to unlock the door from the housing. By incorporating a door hook into the door lock device, not only can some switches be triggered or stopped, but the door can also be locked to the housing. Moreover, compared to the existing structure with two hooks, this application only uses one door hook in the door lock device, simplifying the product structure. The trigger can be a boss made of plastic material, allowing it to be glued to the door without additional installation, simplifying the product structure and reducing costs.

[0012] By setting at least a portion of the switching components to be at the same height, the overall height of the switching assembly can be reduced. This, in turn, reduces the distance between the door hook and the trigger element used to activate the switching component, resulting in a more compact and efficient overall layout of the door lock device. This allows the door lock device to be used in small cooking appliances. Furthermore, compared to the existing structure with two hook locking components, this application only provides one door hook in the door lock device, simplifying the product's structure.

[0013] According to the door lock device described above, it may also have the following distinguishing technical features:

[0014] In some technical solutions, the switch assembly may optionally include: a first linkage member, mounted on the bracket, wherein when the door hook is in the second position, the door hook is connected to the first linkage member, and when the door hook is in the first position, the door hook is separated from the first linkage member, and the door hook can drive the first linkage member to trigger or stop a portion of the multiple switching elements; and a second linkage member, mounted on the bracket, wherein when the trigger member is in the fourth position, the trigger member pushes the second linkage member to move, and when the trigger member is in the third position, the trigger member is separated from the second linkage member to trigger or stop another portion of the multiple switching elements.

[0015] In this technical solution, the structure of the switch assembly is defined. The switch assembly also includes a first linkage and a second linkage, which are mounted on a bracket. The first and second linkages are respectively used to cooperate with a door hook and a trigger to trigger or stop the switch. Specifically, when the door hook is in the second position, the door hook is connected to the first linkage. When the door hook is in the first position, the door hook is separated from the first linkage, and the door hook can drive the first linkage to trigger or stop a portion of the multiple switches. The trigger can push the second linkage to trigger or stop another portion of the multiple switches. When the trigger is in the fourth position, the trigger pushes the second linkage to move. When the trigger is in the third position, the trigger is separated from the second linkage to trigger or stop another portion of the multiple switches.

[0016] In one possible technical solution, the first linkage is constructed as a cam structure. The first linkage is rotatably connected to the bracket and can rotate under the action of the door hook. Some of the multiple switching elements are arranged around the first linkage, and the edge of the first linkage has multiple protruding portions. When the door hook drives the first linkage to rotate, the protruding portions on the first linkage can contact or separate from the switching elements surrounding the first linkage, thereby triggering or stopping these switching elements.

[0017] In one possible technical solution, the second linkage is constructed as a rocker arm. One end of the second linkage is rotatably connected to a bracket, and another portion of the multiple switching elements are located near the other end of the second linkage. When the trigger moves to the fourth position, the trigger contacts the second linkage and pushes one end of the second linkage towards the switching element until the trigger reaches the fourth position, at which point the second linkage contacts the switching element. When the trigger moves to the third position, the trigger separates from the second linkage, and the second linkage returns to its original position after losing the force of the trigger, thus separating from the switching element and triggering or stopping these switching elements.

[0018] Specifically, when the door closes the appliance, it moves the door hook and trigger towards the first and second linkage components. When the door is closed, the door hook and trigger can respectively activate or deactivate some switches via the first and second linkage components, thus activating the electrical circuits in the cooking appliance and enabling it to operate normally for cooking. When the door is open, it moves the door hook and trigger away from the first and second linkage components. Without the force of the door hook and trigger, the first and second linkage components separate from the switches, returning to their initial state. This disconnects the electrical circuits in the cooking appliance, preventing the electrical components from operating and ensuring that the appliance cannot heat up when the door is open, thus improving its safety.

[0019] Furthermore, the door hook can move relative to the bracket between a first position and a second position. The door hook can drive the first linkage member to move relative to the bracket, thereby triggering or stopping some of the multiple switching members. Specifically, when the door hook is in the first position, the door hook is away from the first linkage member, the first linkage member is not subjected to any force from the door hook, and the first linkage member is in its initial position, at which point the first linkage member is away from the switching member. When the door hook moves from the first position to the second position, the door hook connects with the first linkage member. As the door hook moves to the second position, the door hook drives the first linkage member to move until the door hook moves to the second position. At this point, the first linkage member contacts some of the multiple switching members, and the state of these switching members contacted by the first linkage member changes from off to on (i.e., triggered), or from on (i.e., triggered) to off. When the door hook moves from the second position to the first position, the door hook first drives the first linkage member to move back to its initial position. The first linkage member gradually separates from the switching members, and the state of these switching members previously in contact with the first linkage member changes from on to off, or from off to on. As the door hook moves, the first linkage gradually separates from the door hook until the door hook moves to the first position, at which point the first linkage completely separates from the door hook.

[0020] Furthermore, the trigger can move relative to the bracket between a third position and a fourth position. The trigger can push the second linkage relative to the bracket to trigger or turn off another portion of the multiple switching elements. Specifically, when the trigger is in the third position, the trigger is away from the second linkage, the second linkage is not subjected to any force from the trigger, and the second linkage is in its initial position, at which point the second linkage is away from the switching element. When the trigger moves from the third position to the fourth position, the trigger contacts the second linkage. As the trigger moves to the fourth position, it pushes the second linkage until it reaches the fourth position. At this point, the second linkage contacts another portion of the multiple switching elements, and the state of these switching elements contacted by the second linkage changes from off to on (i.e., triggered), or from on (i.e., triggered) to off. When the trigger moves from the fourth position to the third position, the trigger no longer applies a pushing force to the second linkage, the second linkage moves back to its initial position, and the second linkage gradually separates from the switching elements. The state of these switching elements previously in contact with the second linkage changes from on to off, or from off to on. When the trigger moves to the third position, the second linkage completely separates from the trigger.

[0021] By setting a first linkage and a second linkage in the switch assembly, the door hook and the trigger can trigger or stop the switch assembly through the first linkage and the second linkage, respectively.

[0022] In some technical solutions, optionally, the door lock device is used in a cooking appliance, and multiple switching components include: a first switching component for starting or stopping the electronic control unit of the cooking appliance, the first switching component having a first contact, the first switching component being opened when the first contact is pressed; a second switching component for starting the monitoring unit of the cooking appliance, the second switching component having a second contact, the second switching component being closed when the second contact is pressed; when the door hook moves from a first position to a second position, the door hook drives a first linkage component to sequentially press the second contact and the first contact; when the door hook moves from the second position to the first position, the door hook drives the first linkage component to sequentially separate from the first contact and the second contact.

[0023] In this technical solution, the structure of the door lock device is further defined. The door lock device is used in a cooking appliance, which includes an electronic control unit and a monitoring unit. The electronic control unit is used to control the power-on status of some electronic devices in the cooking appliance, such as a display. The monitoring unit is used to control the short-circuit status of electronic devices and heating components in the cooking appliance. The electronic devices may include a display, and the heating components may include a hot air generator and / or a microwave component.

[0024] Furthermore, the plurality of switching components include a first switching component and a second switching component. The first switching component is used to activate or deactivate the electronic control unit in the cooking appliance. The first switching component has a first contact, which is used to activate or deactivate the first switching component. Specifically, when the first contact is not pressed, the first switching component is closed, meaning the first switching component de-energizes the electronic control unit in the cooking appliance. When the first contact is pressed, the first switching component is open, meaning the first switching component energizes the electronic control unit in the cooking appliance. When the door hook is in the second position, the door hook drives the first linkage member to press the first contact, thereby opening the first switching component. When the door hook is in the first position, the door hook separates from the first linkage member, the first linkage member moves away from the first contact, and the first contact is in an unpressed state, thereby deactivating the first switching component.

[0025] Furthermore, the second switch is used to activate or deactivate the monitoring unit in the cooking appliance. The second switch has a second contact, which is used to activate or deactivate the second switch. Specifically, when the second contact is not pressed, the second switch is activated, and the monitoring unit short-circuits the electronic equipment and heating element in the cooking appliance, preventing them from operating. When the second contact is pressed, the second switch is deactivated, and the electronic equipment and heating element in the cooking appliance are no longer short-circuited, allowing them to receive power normally. When the door hook is in the second position, the door hook drives the first linkage to press the second contact, causing the second switch to deactivate. When the door hook is in the first position, the door hook separates from the first linkage, the first linkage moves away from the second contact, and the second contact is in an unpressed state, allowing the second switch to activate.

[0026] Furthermore, when the door hook moves from the first position to the second position, the door hook drives the first linkage to sequentially press the second contact and the first contact, thereby first turning off the second switch so that the electronic equipment and heating components in the cooking appliance are no longer in a short circuit state, and then turning on the first switch so that the electronic equipment in the cooking appliance is powered on.

[0027] Furthermore, as the door hook moves from the second position to the first position, the door hook drives the first linkage to sequentially separate from the first and second contacts. This allows the first switch to be turned off first, de-energizing the electronic equipment in the cooking appliance, and then the second switch to be turned on, short-circuiting the electronic equipment and heating components in the cooking appliance.

[0028] Understandably, the door hook can be installed on the door of the cooking appliance. When the door is closed, the door moves the door hook to a second position. The door hook, through a first linkage, sequentially closes the second switch and opens the first switch, thus first ensuring that the electronic equipment and heating elements in the cooking appliance are no longer short-circuited, and then powering on the electronic equipment. When the door is opened, the door moves the door hook to a first position. The door hook, through a first linkage, sequentially closes the first switch and opens the second switch, thus first de-energizing the electronic equipment in the cooking appliance, and then short-circuiting the electronic equipment and heating elements. This improves the safety and reliability of the cooking appliance to which the door lock device is used.

[0029] In some technical solutions, optionally, the first linkage member has a hook-lock member, and the door hook has a slot adapted to the hook-lock member; wherein, during the process of the door hook moving from the first position to the second position, the hook-lock member extends into the slot so that the door hook can drive the first linkage member to move; during the process of the door hook moving from the second position to the first position, the hook-lock member separates from the slot.

[0030] In this technical solution, the structure of the door lock device is further defined. In order to enable the first linkage member to be detachably connected to the door hook, this application provides a hook lock member in the first linkage member and a bayonet adapted to the hook lock member in the door hook. The hook lock member can extend into the bayonet to realize the connection between the first linkage member and the door hook.

[0031] Specifically, as the door hook moves from the first position to the second position, the hook lock extends into the bayonet. The door hook and the first linkage are connected through the cooperation of the hook lock and the bayonet. As the door hook moves to the second position, the door hook drives the first linkage to move until the door hook moves to the second position. The first linkage contacts and squeezes the first and second contacts, causing the first switch to open and the second switch to close.

[0032] Furthermore, as the door hook moves from the second position to the first position, the hook lock is initially positioned within the bayonet, and the door hook is connected to the first linkage. The door hook then causes the first linkage to separate from the first and second contacts, the first switch is turned off, and the second switch is turned on. As the door hook moves towards the first position, the hook lock gradually moves out of the bayonet and separates from it, thereby separating the door hook from the first linkage.

[0033] By setting a hook lock in the first linkage and a bayonet adapted to the hook lock in the door hook, the door hook and the first linkage can be connected and separated through the cooperation of the hook lock and the bayonet.

[0034] In some technical solutions, optionally, the door lock device further includes: an elastic element mounted on a bracket, one end of which is connected to a first linkage element; wherein, during the process of the door hook moving to the second position and causing the first linkage element to move, the elastic element is deformed by the first linkage element, and the elastic element applies a pulling force to the first linkage element to make the hook lock fit against the inner wall of the bayonet; during the process of the door hook moving to the first position and causing the first linkage element to move, the elastic element is deformed by the first linkage element, and the elastic element applies a force to the first linkage element in a direction away from the first contact point and the second contact point.

[0035] In this technical solution, the structure of the door lock device is further defined. The door lock device also includes an elastic element, which is mounted on a bracket, and one end of the elastic element is connected to the first linkage element. The elastic element can apply a force to the first linkage element. Specifically, during the process of the door hook moving to the second position, the door hook drives the first linkage element to move. Since one end of the elastic element is connected to the first linkage element, the elastic element is deformed by the first linkage element. The elastic element applies a pulling force to the first linkage element, and the hook lock element tends to continue moving under the pulling force of the elastic element. The latch limits the hook lock element, and the hook lock element fits tightly against the inner wall of the latch to keep the first linkage element stable.

[0036] Furthermore, as the door hook moves from the second position to the first position, the door hook first drives the first linkage member to move until the door hook moves to the first position, at which point the hook lock member moves out of the latch, and the first linkage member separates from the door hook. The elastic member is deformed by the first linkage member. After the first linkage member separates from the door hook, the elastic member applies a force to the first linkage member in a direction away from the first and second contacts, preventing the first linkage member from accidentally triggering the first and second contacts.

[0037] In one possible technical solution, the elastic element is a torsion spring.

[0038] In some technical solutions, optionally, the multiple switching elements also include: a third switching element for starting or stopping the heating component of the cooking appliance, the third switching element having a third contact, the third switching element being turned on when the third contact is pressed, and the trigger pushing the second linkage to press the third contact when the trigger moves from the third position to the fourth position.

[0039] In this technical solution, the door lock device is further defined. The cooking appliance for which the door lock device is used may also include a heating component for heating food, and the multiple switches also include a third switch, which is used to start or stop the heating component of the cooking appliance. The third switch has a third contact, which is used to start or stop the third switch. Specifically, when the third contact is not pressed, the third switch is closed, that is, the third switch prevents the heating component in the cooking appliance from being energized; when the third contact is pressed, the third switch is open, that is, the third switch energizes the heating component in the cooking appliance. When the trigger is in the fourth position, the trigger pushes the second linkage to press the third contact, thereby opening the third switch; when the trigger is in the third position, the trigger separates from the second linkage, the second linkage moves away from the third contact, and the third contact is in an unpressed state, thereby closing the third switch.

[0040] Understandably, the door hook and trigger can be installed on the door of the cooking appliance. When the door closes, the door moves the door hook to the second position, simultaneously moving the trigger to the fourth position. The door hook first sequentially closes the second switch and opens the first switch via the first linkage, thus first ensuring that the electronic equipment and heating element in the cooking appliance are no longer short-circuited, and then energizes the electronic equipment. After the first linkage contacts the first and second switches, the trigger opens the third switch via the second linkage, energizing the heating element. When the door opens, the door moves the door hook to the first position and the trigger to the third position. The trigger first separates from the second linkage, allowing the second linkage to return to its initial position and separate from the third switch, which then closes, de-energizing the heating element. Then, the door hook sequentially closes the first switch and opens the second switch via the first linkage, first de-energizing the electronic equipment, and then short-circuiting the electronic equipment and heating element. This can improve the safety and reliability of cooking appliances used with door lock devices.

[0041] In some technical solutions, optionally, the door lock device further includes: a front plate connected to the bracket, the front plate having a first opening and a second opening; wherein the first opening is disposed opposite to the first linkage member and is used for inserting a door hook, and the second opening is disposed opposite to the second linkage member and is used for inserting a trigger member.

[0042] In this technical solution, the structure of the door lock device is further defined. The door lock device also includes a front plate connected to a bracket. The front plate has a first opening and a second opening, which are respectively used for a door hook and a trigger. Specifically, the first opening is opposite to a first linkage member, and the door hook can pass through the first opening to connect with the first linkage member, thereby driving the first linkage member to trigger a first switch member and a second switch member. The door hook can move into and out of the first opening. The second opening is opposite to a second linkage member, and the trigger member can pass through the second opening to contact the second linkage member, thereby pushing the second linkage member to trigger a third switch member. The trigger member can move into and out of the second opening.

[0043] By setting a first opening and a second opening on the front panel, the door lock device can be protected by the front panel, reducing damage to the door lock device from external impurities. On the other hand, the door hook can pass through the first opening to contact the first linkage member, and the trigger member can pass through the second opening to contact the second linkage member, so that the door lock device can perform normal functions.

[0044] In some technical solutions, the door lock device may optionally include: a slider, movably mounted in the second opening, the slider being able to slide back and forth along the length of the second opening, the slider having an insertion port, and a trigger being able to pass through the insertion port to contact the second linkage.

[0045] In this technical solution, the structure of the door lock device is further defined. The door lock device also includes a slider, which is movably mounted in the second opening. The slider has an insertion port through which a trigger can pass and contact the second linkage. Specifically, the slider can slide back and forth along the length of the second opening, so that even if the trigger is not aligned with the insertion port, the slider can still slide to the correct position to engage with the trigger, allowing the trigger to smoothly pass through the insertion port and contact the second linkage. Furthermore, by setting the slider at the second opening, the slider can provide a certain degree of sealing to the second opening, reducing the entry of external impurities into the door lock device through the second opening, thus providing a certain degree of protection for the door lock device.

[0046] In some technical solutions, the width of the insertion port may optionally be less than or equal to 3 mm.

[0047] In this technical solution, the insertion port is defined. Specifically, the width of the insertion port is less than or equal to 3mm. This ensures that the size of the insertion port meets the requirements of relevant industry standards or technical specifications, and also minimizes the size of the insertion port while allowing the trigger element to be inserted. This reduces the likelihood of external impurities entering the door lock device through the second opening, thus providing a certain degree of protection for the door lock device.

[0048] In some technical solutions, optionally, the bracket includes: a mounting plate having a mounting surface, on which multiple switches, a first linkage, and a second linkage are mounted, and the mounting surface is flat.

[0049] In this technical solution, the structure of the bracket is defined. The bracket includes a mounting plate with a mounting surface. Multiple switches, a first linkage, and a second linkage are mounted on the mounting surface, which is planar, meaning that the multiple switches, the first linkage, and the second linkage are located on the same plane. Understandably, if the mounting surface is curved or has an uneven surface, the multiple switches, the first linkage, and the second linkage will be located on different planes, leading to an increase in the width of the door lock device. This is detrimental to the miniaturization design of the product and makes it difficult to install the door lock device on small cooking appliances. By making the mounting surface planar, the multiple switches, the first linkage, and the second linkage can be located on the same plane, thereby reducing the width of the door lock device and enabling it to be used on smaller cooking appliances, which is beneficial for the miniaturization design of the product.

[0050] By setting the mounting surface to a plane, multiple switching components, the first linkage component, and the second linkage component can be located on the same plane, thereby reducing the width of the door lock device and enabling it to be used on smaller cooking appliances, which is beneficial for the miniaturization of the product.

[0051] A second aspect of the invention also provides a cooking appliance that includes the door lock device proposed in the first aspect of the invention.

[0052] The cooking appliance provided in the second aspect of the present invention, having the door lock device proposed in the first aspect of the present invention, has all the beneficial effects of the door lock device.

[0053] In some technical solutions, optionally, the cooking appliance further includes: a housing, including a cooking cavity, with a bracket in the door lock device mounted on the side wall of the housing; a door, movably connected to the housing, used to open or close the cooking cavity, with a door hook and a trigger in the door lock device mounted on the side of the door facing the housing, and a front plate in the door lock device facing the door; wherein, when the door closes the cooking cavity, the door moves the door hook and the trigger, the door hook first moves the first linkage of the door lock device to sequentially press the second contact of the second switch of the door lock device and the first contact of the first switch of the door lock device, and then the trigger moves the second linkage of the door lock device to press the third contact of the third switch of the door lock device; when the door opens the cooking cavity, the door moves the door hook and the trigger, the trigger first separates from the second linkage so that the second linkage separates from the third contact, and then the door hook moves the first linkage to sequentially separate from the first contact and the second contact.

[0054] In this technical solution, the structure of the cooking appliance is defined. The cooking appliance includes a housing and a door, wherein the housing includes a cooking cavity, and the door is movably connected to the housing for opening or closing the cooking cavity. A bracket in the door locking device is mounted on the side wall of the housing, and a door hook and trigger in the door locking device are mounted on the side of the door facing the housing. The front plate of the door locking device faces the door. The door can drive the door hook and trigger to move towards or away from the first and second linkages in the door locking device.

[0055] Furthermore, when the cooking cavity is closed by the door, the door moves the door hook and the trigger. The door hook first drives the first linkage of the door lock device to sequentially press the second contact of the second switch and the first contact of the first switch of the door lock device. Then, the trigger drives the second linkage of the door lock device to press the third contact of the third switch of the door lock device. Specifically, when the cooking cavity is closed by the door, the door moves the door hook to the second position and simultaneously moves the trigger to the fourth position. The door hook first sequentially closes the second switch and opens the first switch through the first linkage, thereby preventing the electronic equipment and heating components in the cooking appliance from being short-circuited, and then energizing the electronic equipment of the cooking appliance. After the first linkage contacts the first and second switches, the trigger opens the third switch through the second linkage, energizing the heating components of the cooking appliance.

[0056] Furthermore, when the cooking cavity is opened, the door moves the door hook and trigger. The trigger first separates from the second linkage, causing the second linkage to separate from the third contact. Then, the door hook drives the first linkage to separate from the first and second contacts in sequence. Specifically, when the cooking cavity is opened, the door moves the door hook to the first position and the trigger to the third position. The trigger first separates from the second linkage, causing the second linkage to return to its initial position and separate from the third switch. The third switch turns off, de-energizing the heating element of the cooking appliance. Then, the door hook drives the first linkage to turn off the first switch and turn on the second switch in sequence, thus first de-energizing the electronic equipment of the cooking appliance and then short-circuiting the electronic equipment and heating element. This improves the safety and reliability of the cooking appliance.

[0057] In some technical solutions, the cooking appliance may optionally include a microwave oven, a microwave-steam-grill combination appliance, or a microwave-grill.

[0058] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0059] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0060] Figure 1 One of the structural schematic diagrams of a door lock device according to an embodiment of the present invention is shown;

[0061] Figure 2 A second schematic diagram of the structure of a door lock device according to an embodiment of the present invention is shown;

[0062] Figure 3 A third schematic diagram of the structure of a door lock device according to an embodiment of the present invention is shown;

[0063] Figure 4 A fourth schematic diagram of the structure of a door lock device according to an embodiment of the present invention is shown;

[0064] Figure 5 Fifth schematic diagram of the structure of a door lock device according to an embodiment of the present invention is shown;

[0065] Figure 6 A schematic diagram of the structure of a door lock device according to an embodiment of the present invention is shown in Figure 6.

[0066] Figure 7 One of the schematic diagrams of the slider according to an embodiment of the present invention is shown;

[0067] Figure 8 A second schematic diagram of the slider according to an embodiment of the present invention is shown;

[0068] Figure 9 One of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention is shown;

[0069] Figure 10 The second schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention.

[0070] in, Figures 1 to 10 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0071] 100 Door lock device, 110 Bracket, 111 Mounting plate, 112 Mounting surface, 120 Switch, 121 First switch, 122 Second switch, 123 Third switch, 124 First contact, 125 Second contact, 126 Third contact, 130 First linkage, 131 Hook lock, 140 Second linkage, 150 Door hook, 151 Bayonet, 160 Trigger, 170 Elastic element, 180 Front plate, 181 First opening, 182 Second opening, 183 Slider, 184 Insertion port, 190 Switch assembly, 200 Cooking appliance, 210 Door body, 220 Housing, 221 Cooking cavity. Detailed Implementation

[0072] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0073] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0074] The following reference Figures 1 to 10 A door lock device 100 and a cooking appliance 200 are described according to some embodiments of the present invention.

[0075] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention proposes a door lock device 100 for use in a cooking appliance 200. The door lock device 100 includes: a bracket 110 for mounting on the housing 220 of the cooking appliance 200; a switch assembly 190 mounted on the bracket 110, the switch assembly 190 including: a plurality of switch elements 120, at least a portion of which are at the same height along the height direction of the bracket 110; and a door hook 150 for mounting on the door 210 of the cooking appliance 200, the door hook 150 being movable relative to the switch assembly 190 between a first position and a second position to activate the door. The switch 120 can be activated or deactivated. When the door hook 150 is in the second position, the door hook 150 can be connected to the switch assembly 190 to lock the door 210 to the housing 220. When the door hook 150 is in the first position, the door hook 150 can be disengaged from the switch assembly 190 to unlock the door 210 from the housing 220. The trigger 160 is installed on the door 210 of the cooking appliance 200. The trigger 160 can move relative to the switch assembly 190 between a third position and a fourth position to activate or deactivate another portion of the switch 120.

[0076] This application discloses a door lock device 100 that can be used in a cooking appliance 200. The door lock device 100 includes a bracket 110, a switch assembly 190, a door hook 150, and a trigger 160. The switch assembly 190 is mounted on the bracket 110. The door hook 150 and the trigger 160 are movable relative to the bracket 110 and the switch assembly 190. The switch assembly 190 includes a plurality of switches 120. The door hook 150 and the trigger 160 are capable of triggering or deactivating the corresponding switches 120. Specifically, the cooking appliance 200 in which the door lock device 100 is used includes a housing 220 and a door 210. The bracket assembly 110 is mounted on the housing 220, the switch assembly 190 is mounted on the bracket 110, and the door hook 150 and the trigger 160 are both mounted on the door 210. The door 210 is movable between different positions relative to the housing 220 to open or close the housing 220. When the door 210 closes the housing 220, the door 210 can move the door hook 150 and the trigger 160 in the direction toward the switch assembly 190. When the door 210 opens the housing 220, the door 210 can move the door hook 150 and the trigger 160 away from the switch assembly 120, so that the door hook 150 and the trigger 160 can trigger or stop the corresponding switch assembly 120.

[0077] Furthermore, the plurality of switching elements 120 are defined such that, along the height direction of the bracket 110, at least a portion of the switching elements 120 are at the same height, meaning that at least a portion of the switching elements 120 overlap in the height direction of the bracket 110. This reduces the overall height of the switching assembly 190, thereby reducing the distance between the door hook 150 and the trigger element 160 used to trigger the switching element 120, making the overall layout of the door lock device 100 more compact and allowing the door lock device 100 to be used in small cooking appliances 200.

[0078] Furthermore, the door hook 150 is movable between a first position and a second position to trigger or deactivate a portion of the multiple switches 120. Specifically, the door 210 of the cooking appliance 200 can move the door hook 150 relative to the switch assembly 190. When the door 210 closes the enclosure 220, the door 210 moves the door hook 150 to the second position, where the door hook 150 contacts the switch assembly 190, triggering or deactivating a portion of the switches 120 within the switch assembly 190. When the door hook 150 is in the second position, the state of a portion of the multiple switches 120 changes; specifically, the state of these switches 120 changes from deactivated to activated (i.e., triggered), or from activated (i.e., triggered) to deactivated. When the door 210 opens the box 220, the door 210 moves the door hook 150 to the first position, the door hook 150 separates from the switch assembly 190, and the state of this part of the switch element 120 in the switch assembly 190 changes. Specifically, the state of this part of the switch element 120 changes from on (i.e. triggered) to off, or from off to on (i.e. triggered).

[0079] Furthermore, the trigger 160 is movable between the third and fourth positions to trigger or deactivate another portion of the multiple switches 120. Specifically, the door 210 of the cooking appliance 200 can move the trigger 160 relative to the switch assembly 190. When the door 210 closes the enclosure 220, the door 210 moves the trigger 160 to the fourth position, where the trigger 160 contacts the switch assembly 190, triggering or deactivating another portion of the switches 120 within the switch assembly 190. When the trigger 160 is in the fourth position, the state of another portion of the multiple switches 120 changes; specifically, the state of this portion of switches 120 changes from deactivated to activated (i.e., triggered), or from activated (i.e., triggered) to deactivated. When the door 210 opens the box 220, the door 210 moves the trigger 160 to the third position, the trigger 160 separates from the switch assembly 190, and the state of this part of the switch 120 in the switch assembly 190 changes. Specifically, the state of this part of the switch 120 changes from on (i.e., triggered) to off, or from off to on (i.e., triggered).

[0080] Furthermore, the door hook 150 can also be used to lock the door 210 to the housing 220. Specifically, when the door hook 150 is in the second position, it can be connected to the switch assembly 190 to lock the door 210 to the housing 220; when the door hook 150 is in the first position, it can be disengaged from the switch assembly 190 to unlock the door 210 from the housing 220. By providing the door hook 150 in the door lock device 100, not only can some of the switch components 120 be triggered or stopped by the door hook 150, but the door 210 can also be locked to the housing 220 by the door hook 150. Moreover, compared to the structure of existing products with two hook locking components, this application only provides one door hook 150 in the door lock device 100, simplifying the product structure. The trigger 160 can be configured as a boss made of plastic material, so that the trigger 160 can be glued to the door body 210 without additional installation, which simplifies the product structure and reduces the product cost.

[0081] By setting at least a portion of the switch element 120 to the same height, the overall height of the switch assembly 190 can be reduced, thereby reducing the distance between the door hook 150 and the trigger element 160 used to trigger the switch element 120. This makes the overall layout of the door lock device 100 more compact and allows the door lock device 100 to be used in small cooking appliances 200. Furthermore, compared to the structure of existing products with two hook locking elements, this application only provides one door hook 150 in the door lock device 100, simplifying the product structure.

[0082] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the switch assembly 190 further includes: a first linkage 130, mounted on the bracket 110, wherein when the door hook 150 is in the second position, the door hook 150 is connected to the first linkage 130; when the door hook 150 is in the first position, the door hook 150 is separated from the first linkage 130; and the door hook 150 can drive the first linkage 130 to trigger or stop a portion of the multiple switches 120; and a second linkage 140, mounted on the bracket 110, wherein when the trigger 160 is in the fourth position, the trigger 160 pushes the second linkage 140 to move; and when the trigger 160 is in the third position, the trigger 160 is separated from the second linkage 140 to trigger or stop another portion of the multiple switches 120.

[0083] In this embodiment, the structure of the switch assembly 190 is defined. The switch assembly 190 further includes a first linkage 130 and a second linkage 140. The first linkage 130 and the second linkage 140 are mounted on the bracket 110. The first linkage 130 and the second linkage 140 are respectively used to cooperate with the door hook 150 and the trigger 160 to trigger or stop the switch 120. Specifically, when the door hook 150 is in the second position, the door hook 150 is connected to the first linkage 130. When the door hook 150 is in the first position, the door hook 150 is separated from the first linkage 130. The door hook 150 can drive the first linkage 130 to trigger or stop a portion of the multiple switch 120s. The trigger 160 can push the second linkage 140 to trigger or turn off another part of the multiple switches 120. When the trigger 160 is in the fourth position, the trigger 160 pushes the second linkage 140 to move. When the trigger 160 is in the third position, the trigger 160 separates from the second linkage 140 to trigger or turn off another part of the multiple switches 120.

[0084] In one possible embodiment, the first linkage 130 is configured as a cam structure. The first linkage 130 is rotatably connected to the bracket 110 and can rotate under the actuation of the door hook 150. Some of the multiple switches 120 are arranged around the first linkage 130, and the edge of the first linkage 130 has multiple protruding portions. When the door hook 150 drives the first linkage 130 to rotate, the protruding portions of the first linkage 130 can contact or separate from the switches 120 surrounding the first linkage 130, thereby triggering or stopping these switches 120.

[0085] In one possible embodiment, the second linkage 140 is configured as a rocker arm. One end of the second linkage 140 is rotatably connected to the bracket 110, and another portion of the multiple switches 120 are located near the other end of the second linkage 140. When the trigger 160 moves to the fourth position, the trigger 160 contacts the second linkage 140 and pushes one end of the second linkage 140 to move toward the switch 120 until the trigger 160 moves to the fourth position, at which point the second linkage 140 contacts the switch 120. When the trigger 160 moves to the third position, the trigger 160 separates from the second linkage 140, and the second linkage 140 returns to its original position after losing the force of the trigger 160, thus separating from the switch 120 and triggering or stopping this portion of the switches 120.

[0086] Specifically, when the door 210 closes the cabinet 220, the door 210 moves the door hook 150 and the trigger 160 toward the first linkage 130 and the second linkage 140. When the door 210 closes the cabinet 220, the door hook 150 and the trigger 160 can trigger or turn off some of the switches 120 through the first linkage 130 and the second linkage 140, so that the electrical components in the cooking appliance 200 are connected and the cooking appliance 200 can operate normally to cook the food. When the door 210 opens the cabinet 220, the door 210 moves the door hook 150 and the trigger 160 away from the first linkage 130 and the second linkage 140. When the first linkage 130 and the second linkage 140 lose the force of the door hook 150 and the trigger 160, they separate from the multiple switches 120. The switches 120 return to their initial state, the circuit of the electrical components in the cooking appliance 200 is disconnected, and the electrical components cannot operate, ensuring that the cooking appliance 200 cannot heat up when the door is opened, thus improving the safety of the cooking appliance 200.

[0087] Furthermore, the door hook 150 is movable relative to the bracket 110 between a first position and a second position. The door hook 150 can drive the first linkage 130 to move relative to the bracket 110, thereby triggering or stopping some of the multiple switches 120. Specifically, as... Figure 5 and Figure 6 As shown, when the door hook 150 is in the first position, the door hook 150 is away from the first linkage member 130, and the first linkage member 130 is not subjected to any force from the door hook 150. The first linkage member 130 is in its initial position, at which time the first linkage member 130 is away from the switch member 120. When the door hook 150 moves from the first position to the second position, the door hook 150 connects with the first linkage member 130. As the door hook 150 moves to the second position, the door hook 150 drives the first linkage member 130 to move until the door hook 150 moves to the second position, as shown. Figure 3 and Figure 4 As shown, at this time, the first linkage 130 is in contact with some of the multiple switching elements 120. The state of these switching elements 120 contacted by the first linkage 130 changes from off to on (i.e., triggered), or from on (i.e., triggered) to off. When the door hook 150 moves from the second position to the first position, the door hook 150 first drives the first linkage 130 to move to its initial position. The first linkage 130 gradually separates from the switching elements 120, and the state of these switching elements 120 that were previously in contact with the first linkage 130 changes from on to off, or from off to on. As the door hook 150 moves, the first linkage 130 gradually separates from the door hook 150 until the door hook 150 moves to the first position, at which point the first linkage 130 and the door hook 150 are completely separated.

[0088] Furthermore, the trigger 160 is movable relative to the bracket 110 between a third position and a fourth position. The trigger 160 can push the second linkage 140 to move relative to the bracket 110, thereby triggering or stopping another portion of the multiple switching elements 120. Specifically, when the trigger 160 is in the third position, as... Figure 5 and Figure 6 As shown, the trigger 160 is away from the second linkage 140, and the second linkage 140 is not subjected to any force from the trigger 160. The second linkage 140 is in its initial position, at which point it is away from the switch 120. When the trigger 160 moves from the third position to the fourth position, the trigger 160 contacts the second linkage 140. As the trigger 160 moves to the fourth position, it pushes the second linkage 140 to move until it reaches the fourth position. Figure 3 and Figure 4 As shown, at this time, the second linkage 140 is in contact with another portion of the multiple switching elements 120. The state of these switching elements 120 contacted by the second linkage 140 changes from off to on (i.e., triggered), or from on (i.e., triggered) to off. When the trigger 160 moves from the fourth position to the third position, the trigger 160 no longer applies a pushing force to the second linkage 140, and the second linkage 140 moves back to its initial position. The second linkage 140 gradually separates from the switching elements 120, and the state of these switching elements 120 that were previously in contact with the second linkage 140 changes from on to off, or from off to on. When the trigger 160 moves to the third position, the second linkage 140 is completely separated from the trigger 160.

[0089] By providing a first linkage 130 and a second linkage 140 in the switch assembly 190, the door hook 150 and the trigger 160 can trigger or stop the switch assembly 120 through the first linkage 130 and the second linkage 140, respectively.

[0090] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the door lock device 100 is used in the cooking appliance 200. Multiple switches 120 include: a first switch 121 for starting or stopping the electronic control unit of the cooking appliance 200; the first switch 121 has a first contact 124, which opens when the first contact 124 is pressed; a second switch 122 for starting the monitoring unit of the cooking appliance 200; the second switch 122 has a second contact 125, which closes when the second contact 125 is pressed; when the door hook 150 moves from a first position to a second position, the door hook 150 drives a first linkage member 130 to sequentially press the second contact 125 and the first contact 124; when the door hook 150 moves from the second position to the first position, the door hook 150 drives the first linkage member 130 to sequentially separate from the first contact 124 and the second contact 125.

[0091] In this embodiment, the structure of the door lock device 100 is further defined. The door lock device 100 is used in a cooking appliance 200, which includes an electronic control unit and a monitoring unit. The electronic control unit is used to control the power-on status of some electronic devices in the cooking appliance 200, such as a display. The monitoring unit is used to control the short-circuit status of electronic devices and heating components in the cooking appliance 200. The electronic devices may include a display, and the heating components may include a hot air generator and / or a microwave component.

[0092] Furthermore, the plurality of switching components 120 includes a first switching component 121 and a second switching component 122. The first switching component 121 is used to activate or deactivate the electronic control unit in the cooking appliance 200. The first switching component 121 has a first contact 124, which is used to activate or deactivate the first switching component 121. Specifically, when the first contact 124 is not pressed, the first switching component 121 is closed, meaning the first switching component 121 prevents the electronic control unit in the cooking appliance 200 from being energized. When the first contact 124 is pressed, the first switching component 121 is activated, meaning the first switching component 121 energizes the electronic control unit in the cooking appliance 200. When the door hook 150 is in the second position, the door hook 150 drives the first linkage member 130 to press the first contact 124, so that the first switch member 121 is opened. When the door hook 150 is in the first position, the door hook 150 is separated from the first linkage member 130, the first linkage member 130 is away from the first contact 124, and the first contact 124 is in an unpressed state, so that the first switch member 121 is closed.

[0093] Furthermore, the second switch 122 is used to activate or deactivate the monitoring unit in the cooking appliance 200. The second switch 122 has a second contact 125, which is used to activate or deactivate the second switch 122. Specifically, when the second contact 125 is not pressed, the second switch 122 is activated, and the monitoring unit short-circuits the electronic equipment and heating element in the cooking appliance 200, preventing them from operating. When the second contact 125 is pressed, the second switch 122 is deactivated, and the electronic equipment and heating element in the cooking appliance 200 are no longer short-circuited, allowing them to receive power normally. When the door hook 150 is in the second position, the door hook 150 drives the first linkage member 130 to press the second contact 125, so that the second switch member 122 is closed. When the door hook 150 is in the first position, the door hook 150 is separated from the first linkage member 130, the first linkage member 130 is away from the second contact 125, and the second contact 125 is in an unpressed state, so that the second switch member 122 is opened.

[0094] Furthermore, when the door hook 150 moves from the first position to the second position, the door hook 150 drives the first linkage member 130 to press the second contact 125 and the first contact 124 in sequence, thereby enabling the second switch member 122 to be turned off first, so that the electronic equipment and heating components in the cooking appliance 200 are no longer in a short circuit state, and then enabling the first switch member 121 to be turned on, so that the electronic equipment in the cooking appliance 200 is connected to power.

[0095] Furthermore, when the door hook 150 moves from the second position to the first position, the door hook 150 drives the first linkage 130 to separate from the first contact 124 and the second contact 125 in sequence. This allows the first switch 121 to be turned off first, thereby de-energizing the electronic equipment in the cooking appliance 200, and then the second switch 122 to be turned on, thereby short-circuiting the electronic equipment and heating components in the cooking appliance 200.

[0096] Understandably, the door hook 150 can be installed on the door 210 of the cooking appliance 200, such as... Figure 3 and Figure 4 As shown, when the door 210 closes the cabinet 220, the door 210 moves the door hook 150 to the second position. The door hook 150, through the first linkage 130, sequentially closes the second switch 122 and opens the first switch 121, thereby first ensuring that the electronic equipment and heating components in the cooking appliance 200 are no longer in a short-circuit state, and then powering on the electronic equipment of the cooking appliance 200. Figure 5 and Figure 6As shown, when the door 210 opens the cabinet 220, the door 210 moves the door hook 150 to the first position. The door hook 150 then drives the first linkage 130 to sequentially close the first switch 121 and open the second switch 122, thereby first de-energizing the electronic equipment of the cooking appliance 200, and then short-circuiting the electronic equipment and heating components in the cooking appliance 200. This improves the safety and reliability of the cooking appliance 200 to which the door lock device 100 is used.

[0097] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the first linkage 130 has a hook lock 131, and the door hook 150 has a latch 151 adapted to the hook lock 131; wherein, during the process of the door hook 150 moving from the first position to the second position, the hook lock 131 extends into the latch 151 so that the door hook 150 can drive the first linkage 130 to move; during the process of the door hook 150 moving from the second position to the first position, the hook lock 131 separates from the latch 151.

[0098] In this embodiment, the structure of the door lock device 100 is further defined. In order to enable the first linkage member 130 to be detachably connected to the door hook 150, this application provides a hook lock member 131 in the first linkage member 130 and a bayonet 151 adapted to the hook lock member 131 in the door hook 150. The hook lock member 131 can extend into the bayonet 151 to realize the connection between the first linkage member 130 and the door hook 150.

[0099] Specifically, during the process of the door hook 150 moving from the first position to the second position, the hook lock 131 extends into the bayonet 151. The door hook 150 and the first linkage 130 are connected through the cooperation of the hook lock 131 and the bayonet 151. As the door hook 150 moves to the second position, the door hook 150 drives the first linkage 130 to move until the door hook 150 moves to the second position. The first linkage 130 contacts and squeezes the first contact 124 and the second contact 125, so that the first switch 121 is turned on and the second switch 122 is turned off.

[0100] Furthermore, during the movement of the door hook 150 from the second position to the first position, the hook lock 131 is initially positioned within the latch 151, and the door hook 150 is connected to the first linkage 130. The door hook 150 causes the first linkage 130 to separate from the first contact 124 and the second contact 125, the first switch 121 is turned off, and the second switch 122 is turned on. As the door hook 150 moves towards the first position, the hook lock 131 gradually moves out of the latch 151 and separates from the latch 151, thereby separating the door hook 150 from the first linkage 130.

[0101] By providing a hook lock 131 in the first linkage 130 and a bayonet 151 adapted to the hook lock 131 in the door hook 150, the door hook 150 and the first linkage 130 can be connected and separated through the cooperation of the hook lock 131 and the bayonet 151.

[0102] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the door lock device 100 further includes: an elastic element 170, mounted on the bracket 110, with one end of the elastic element 170 connected to the first linkage element 130; wherein, during the process of the door hook 150 moving to the second position and driving the first linkage element 130 to move, the elastic element 170 is driven by the first linkage element 130 to deform, and the elastic element 170 applies a pulling force to the first linkage element 130 to make the hook lock 131 fit against the inner wall of the bayonet 151; during the process of the door hook 150 moving to the first position and driving the first linkage element 130 to move, the elastic element 170 is driven by the first linkage element 130 to deform, and the elastic element 170 applies a force to the first linkage element 130 in a direction away from the first contact point 124 and the second contact point 125.

[0103] In this embodiment, the structure of the door lock device 100 is further defined. The door lock device 100 also includes an elastic element 170, which is mounted on the bracket 110, and one end of the elastic element 170 is connected to the first linkage element 130. The elastic element 170 can apply a force to the first linkage element 130. Specifically, during the movement of the door hook 150 to the second position, the door hook 150 drives the first linkage element 130 to move. Since one end of the elastic element 170 is connected to the first linkage element 130, the elastic element 170 is deformed by the first linkage element 130. The elastic element 170 applies a pulling force to the first linkage element 130, and the hook lock element 131 tends to continue moving under the pulling force of the elastic element 170. The latch 151 limits the hook lock element 131, and the hook lock element 131 fits tightly against the inner wall of the latch 151 to keep the first linkage element 130 stable.

[0104] Furthermore, when the door hook 150 moves from the second position to the first position, the door hook 150 first drives the first linkage member 130 to move until the door hook 150 moves to the first position, at which point the hook lock member 131 moves out of the latch 151, and the first linkage member 130 separates from the door hook 150. The elastic member 170 is deformed by the first linkage member 130. After the first linkage member 130 separates from the door hook 150, the elastic member 170 applies a force to the first linkage member 130 in a direction away from the first contact point 124 and the second contact point 125, to prevent the first linkage member 130 from accidentally triggering the first contact point 124 and the second contact point 125.

[0105] In one possible embodiment, the elastic element 170 is a torsion spring.

[0106] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the plurality of switches 120 also include a third switch 123 for starting or stopping the heating component of the cooking appliance 200. The third switch 123 has a third contact 126. When the third contact 126 is pressed, the third switch 123 is turned on. When the trigger 160 moves from the third position to the fourth position, the trigger 160 pushes the second linkage 140 to press the third contact 126.

[0107] In this embodiment, the door lock device 100 is further defined. The cooking appliance 200 for which the door lock device 100 is used may further include a heating component for heating food, and the plurality of switches 120 may further include a third switch 123, which is used to start or stop the heating component of the cooking appliance 200. The third switch 123 has a third contact 126, which is used to start or stop the third switch 123.

[0108] Specifically, when the third contact 126 is not pressed, the third switch 123 is closed, meaning the third switch 123 prevents the heating element in the cooking appliance 200 from being energized. When the third contact 126 is pressed, the third switch 123 is open, meaning the third switch 123 energizes the heating element in the cooking appliance 200. When the trigger 160 is in the fourth position, the trigger 160 pushes the second linkage 140 to press the third contact 126, thereby opening the third switch 123. When the trigger 160 is in the third position, the trigger 160 separates from the second linkage 140, the second linkage 140 moves away from the third contact 126, and the third contact 126 is in an unpressed state, thereby turning off the third switch 123.

[0109] Understandably, the door hook 150 and trigger 160 can be installed on the door 210 of the cooking appliance 200. When the door 210 closes the enclosure 220, the door 210 moves the door hook 150 to the second position, and simultaneously moves the trigger 160 to the fourth position. The door hook 150 first sequentially closes the second switch 122 and opens the first switch 121 via the first linkage 130, thereby ensuring that the electronic equipment and heating components in the cooking appliance 200 are no longer short-circuited, and then energizes the electronic equipment of the cooking appliance 200. After the first linkage 130 contacts the first switch 121 and the second switch 122, the trigger 160 opens the third switch 123 via the second linkage 140, thereby energizing the heating components of the cooking appliance 200. When the door 210 opens the enclosure 220, the door 210 moves the door hook 150 to the first position and moves the trigger 160 to the third position. The trigger 160 first separates from the second linkage 140, causing the second linkage 140 to return to its initial position and separate from the third switch 123. The third switch 123 then shuts off, de-energizing the heating element of the cooking appliance 200. Then, the door hook 150 drives the first linkage 130 to sequentially close the first switch 121 and open the second switch 122, thereby first de-energizing the electronic equipment of the cooking appliance 200, and then short-circuiting the electronic equipment and heating element in the cooking appliance 200. This improves the safety and reliability of the cooking appliance 200 to which the door lock device 100 is used.

[0110] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the door lock device 100 further includes: a front plate 180 connected to the bracket 110, the front plate 180 having a first opening 181 and a second opening 182; wherein, the first opening 181 is disposed opposite to the first linkage member 130 and is used to extend the door hook 150, and the second opening 182 is disposed opposite to the second linkage member 140 and is used to extend the trigger member 160.

[0111] In this embodiment, the structure of the door lock device 100 is further defined. The door lock device 100 also includes a front plate 180, which is connected to the bracket 110. The front plate 180 has a first opening 181 and a second opening 182, which are respectively used for the door hook 150 and the trigger member 160 to pass through. Specifically, the first opening 181 is disposed opposite to the first linkage member 130, and the door hook 150 can pass through the first opening 181 to connect with the first linkage member 130, so as to drive the first linkage member 130 to trigger the first switch member 121 and the second switch member 122. The door hook 150 can move into and out of the first opening 181. The second opening 182 is disposed opposite to the second linkage member 140, and the trigger member 160 can pass through the second opening 182 to contact the second linkage member 140, so as to push the second linkage member 140 to trigger the third switch member 123. The trigger member 160 can move into and out of the second opening 182.

[0112] By providing a first opening 181 and a second opening 182 on the front panel 180, the door lock device 100 can be protected by the front panel 180, reducing damage to the door lock device 100 from external impurities. On the other hand, the door hook 150 can pass through the first opening 181 to contact the first linkage member 130, and the trigger member 160 can pass through the second opening 182 to contact the second linkage member 140, so that the door lock device 100 can perform normal functions.

[0113] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the door lock device 100 also includes: a slider 183, which is movably mounted in the second opening 182. The slider 183 can slide back and forth along the length direction of the second opening 182. The slider 183 has an insertion port 184, and the trigger 160 can pass through the insertion port 184 to contact the second linkage 140.

[0114] In this embodiment, the structure of the door lock device 100 is further defined. The door lock device 100 also includes a slider 183, which is movably mounted in the second opening 182. The slider 183 has an insertion port 184 through which the trigger 160 can pass and contact the second linkage 140. Specifically, the slider 183 can slide back and forth along the length of the second opening 182, so that even if the trigger 160 is not aligned with the insertion port 184, the slider 183 can still slide to the correct position to cooperate with the trigger 160, allowing the trigger 160 to smoothly pass through the insertion port 184 and contact the second linkage 140. Furthermore, by providing the slider 183 at the second opening 182, the slider 183 can play a certain blocking role in the second opening 182, reducing the entry of external impurities into the door lock device 100 through the second opening 182, thus providing a certain degree of protection for the door lock device 100.

[0115] In some embodiments, optionally, such as Figure 7 and Figure 8 As shown, the width of the insertion port 184 is less than or equal to 3mm.

[0116] In this embodiment, the insertion port 184 is defined. Specifically, as follows: Figure 8 As shown, the width of the insertion port 184 is d, where d ≤ 3mm. In this way, on the one hand, the size of the insertion port 184 can meet the requirements of relevant industry standards or technical specifications, and on the other hand, while ensuring that the trigger 160 can be inserted, the size of the insertion port 184 can be minimized as much as possible, reducing the entry of external impurities into the door lock device 100 through the second opening 182, thus providing a certain degree of protection for the door lock device 100.

[0117] In some embodiments, optionally, such as Figure 1 As shown, the bracket 110 includes: a mounting plate 111, the mounting plate 111 having a mounting surface 112, a plurality of switches 120, a first linkage 130 and a second linkage 140 being mounted on the mounting surface 112, the mounting surface 112 being a plane.

[0118] In this embodiment, the structure of the bracket 110 is defined. The bracket 110 includes a mounting plate 111 with a mounting surface 112. Multiple switches 120, a first linkage 130, and a second linkage 140 are mounted on the mounting surface 112. The mounting surface 112 is planar, meaning that the multiple switches 120, the first linkage 130, and the second linkage 140 are located on the same plane. Understandably, if the mounting surface 112 is curved or has an uneven surface, the multiple switches 120, the first linkage 130, and the second linkage 140 will be located on different planes, which will increase the width of the door lock device 100, hindering the miniaturization design of the product and making it difficult to install the door lock device 100 on a small cooking appliance 200. By setting the mounting surface 112 as a plane, multiple switching components 120, the first linkage component 130 and the second linkage component 140 can be located on the same plane, thereby reducing the width of the door lock device 100 and enabling the door lock device 100 to be used on smaller cooking appliances 200, which is beneficial for the miniaturization design of the product.

[0119] By setting the mounting surface 112 as a plane, multiple switching components 120, the first linkage component 130 and the second linkage component 140 can be located on the same plane, thereby reducing the width of the door lock device 100 and enabling the door lock device 100 to be used on smaller cooking appliances 200, which is beneficial for the miniaturization design of the product.

[0120] A second aspect of the invention also provides a cooking appliance 200, including the door lock device 100 proposed in the first aspect of the invention.

[0121] The cooking appliance 200 provided in the second aspect of the present invention has all the beneficial effects of the door lock device 100 because it includes the door lock device 100 proposed in the first aspect of the present invention.

[0122] In some embodiments, optionally, such as Figure 9 and Figure 10As shown, the cooking appliance 200 also includes: a housing 220, including a cooking cavity 221, with a bracket 110 of the door lock device 100 mounted on the side wall of the housing 220; a door 210, movably connected to the housing 220, used to open or close the cooking cavity 221, with a door hook 150 and a trigger 160 of the door lock device 100 mounted on the side of the door 210 facing the housing 220, and a front plate 180 of the door lock device 100 facing the door 210; wherein, when the door 210 closes the cooking cavity 221, the door 210 drives the door hook 150 and the trigger 160 to move, and the door hook 150 first drives the first linkage member 130 of the door lock device 100 sequentially. The second contact 125 of the second switch member 122 of the door lock device 100 and the first contact 124 of the first switch member 121 of the door lock device 100 are squeezed. Then, the trigger member 160 drives the second linkage member 140 of the door lock device 100 to squeeze the third contact 126 of the third switch member 123 of the door lock device 100. When the door body 210 opens the cooking cavity 221, the door body 210 drives the door hook 150 and the trigger member 160 to move. The trigger member 160 first separates from the second linkage member 140 so that the second linkage member 140 separates from the third contact 126. Then, the door hook 150 drives the first linkage member 130 to separate from the first contact 124 and the second contact 125 in sequence.

[0123] In this embodiment, the structure of the cooking appliance 200 is defined. The cooking appliance 200 includes a housing 220 and a door 210, wherein the housing 220 includes a cooking cavity 221, and the door 210 is movably connected to the housing 220 and is used to open or close the cooking cavity 221. A bracket 110 in the door lock device 100 is mounted on the side wall of the housing 220, and a door hook 150 and a trigger 160 in the door lock device 100 are mounted on the side of the door 210 facing the housing 220. The front plate 180 of the door lock device 100 faces the door 210. The door 210 is capable of moving the door hook 150 and the trigger 160 in a direction toward or away from the first linkage 130 and the second linkage 140 in the door lock device 100.

[0124] Furthermore, such as Figure 3 and Figure 4As shown, when the door 210 closes the cooking cavity 221, the door 210 moves the door hook 150 and the trigger 160. The door hook 150 first moves the first linkage member 130 of the door lock device 100 to sequentially press the second contact 125 of the second switch member 122 and the first contact 124 of the first switch member 121 of the door lock device 100. Then, the trigger 160 moves the second linkage member 140 of the door lock device 100 to press the third contact 126 of the third switch member 123 of the door lock device 100. Specifically, when the door 210 closes the cooking cavity 221, the door 210 moves the door hook 150 to the second position and simultaneously moves the trigger 160 to the fourth position. The door hook 150 first sequentially closes the second switch member 122 and opens the first switch member 121 through the first linkage member 130, thereby first ensuring that the electronic equipment and heating components in the cooking appliance 200 are no longer in a short-circuit state, and then powering on the electronic equipment of the cooking appliance 200. After the first linkage 130 contacts the first switch 121 and the second switch 122, the trigger 160 activates the third switch 123 through the second linkage 140, so as to power the heating component of the cooking appliance 200.

[0125] Furthermore, such as Figure 5 and Figure 6 As shown, when the door 210 opens the cooking cavity 221, the door 210 moves the door hook 150 and the trigger 160. The trigger 160 first separates from the second linkage 140 so that the second linkage 140 separates from the third contact 126. Then the door hook 150 drives the first linkage 130 to separate from the first contact 124 and the second contact 125 in sequence.

[0126] Specifically, when the door 210 opens the cooking cavity 221, the door 210 moves the door hook 150 to the first position and the trigger 160 to the third position. The trigger 160 first separates from the second linkage 140, allowing the second linkage 140 to return to its initial position and separate from the third switch 123. The third switch 123 then turns off, de-energizing the heating element of the cooking appliance 200. Then, the door hook 150 drives the first linkage 130 to sequentially close the first switch 121 and open the second switch 122, thereby first de-energizing the electronic equipment of the cooking appliance 200 and then short-circuiting the electronic equipment and heating element in the cooking appliance 200. This improves the safety and reliability of the cooking appliance 200.

[0127] In some embodiments, the cooking appliance 200 may optionally include a microwave oven, a microwave-steam-grill combination appliance, or a microwave-grill.

[0128] In one possible embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the interlocking system (i.e., door lock device 100) proposed in this invention can be used in a cooking appliance 200, which includes a housing 220 and a door 210. The interlocking system includes an interlocking assembly (including a bracket 110, multiple switches 120, a first linkage 130, a second linkage 140, and an elastic element 170), a slider 183, screws, a boss (i.e., a trigger element 160), and a door hook 150. The door hook 150 and the boss are mounted on the door 210. The interlocking assembly is fixed to the wall of the housing 220 by screws. The slider 183 is mounted on the wall of the housing 220 facing the door 210. The slider 183 is located between the boss and the interlocking assembly, and the boss can pass through the gap (i.e., the insertion port 184) in the middle of the slider 183. Figure 8 As shown, the width d of the gap in the middle of slider 183 does not exceed 3mm, in order to meet the concealment requirements of section 22.105 of GB 4706.21-2008 regarding interlocking components.

[0129] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the interlocking assembly comprises a primary micro switch (i.e., the third switch element 123), a secondary micro switch (i.e., the first switch element 121), a monitoring micro switch (i.e., the second switch element 122), an interlocking bracket 110 (i.e., bracket 110), a cam (i.e., door hook 150), an interlocking lever (i.e., trigger element 160), and a torsion spring (i.e., elastic element 170). From top to bottom, they are the secondary micro switch, the monitoring micro switch, and the primary micro switch. The primary and secondary micro switches are normally open, while the monitoring micro switch is normally closed. The torsion spring connects the interlocking bracket 110 and the cam; when the door is closed, it applies a force to the cam to the lower right, and when the door is opened, it applies a force to the cam to the lower left.

[0130] like Figure 3 and Figure 4 As shown, when the door 210 closes the cabinet 220, the sequence of action of the micro switch (i.e., switch 120) is: monitoring micro switch, secondary micro switch, primary micro switch. The door hook 150 and the boss enter the interlocking assembly. First, the door hook 150 drives the cam to rotate, activating the contacts of the monitoring micro switch and the secondary micro switch (i.e., the second contact 125 and the first contact 124). Then, the boss drives the interlocking lever to rotate, activating the primary micro switch contact (i.e., the third contact 126), and the cooking appliance 200 begins to work. At this time, the torsion spring applies a force to the lower right of the cam, and the cam insert pulls the door hook, making the door difficult to open. At the same time, the door hook's slot restricts the position of the cam, preventing it from continuing to rotate to the right.

[0131] like Figure 5 and Figure 6As shown, when the door 210 opens the housing 220, the microswitches operate in the following sequence: primary microswitch, secondary microswitch, and monitoring microswitch. The door hook and boss gradually move away from the interlocking assembly. First, the boss moves away from the interlocking lever and no longer touches the primary microswitch contact. Then, the door hook 150 drives the cam to rotate counterclockwise, no longer touching the secondary and monitoring microswitch contacts, and the cooking appliance 200 stops working. At this time, the torsion spring applies a force to the lower left of the cam, fixing it on the left side and preventing it from rotating clockwise to touch the microswitch.

[0132] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0133] In the description of this specification, the terms "one embodiment," "some embodiments," "specific 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.

[0134] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A door lock device, characterized in that, The door lock device is used in a cooking appliance, and the door lock device includes: A bracket for mounting to the housing of the cooking appliance; A switch assembly, mounted on the bracket, the switch assembly comprising: A plurality of switching components, wherein at least a portion of a portion of the plurality of switching components is at the same height along the height direction of the bracket; A door hook for installation on the door of the cooking appliance, the door hook being movable relative to the switch assembly between a first position and a second position to trigger or deactivate a portion of the multiple switches; when the door hook is in the second position, the door hook is connected to the switch assembly to lock the door to the housing; when the door hook is in the first position, the door hook is detached from the switch assembly to unlock the door from the housing. A trigger element for mounting on the door of the cooking appliance, the trigger element being movable relative to the switch assembly between a third position and a fourth position to trigger or deactivate another portion of the plurality of switch elements; First linkage component; Second linkage component; A front panel, connected to the bracket, the front panel having a first opening and a second opening; A slider is movably mounted in the second opening. The slider can slide back and forth along the length direction of the second opening. The slider has an insertion port, and the trigger can pass through the insertion port to contact the second linkage. The support includes: The mounting plate has a mounting surface, on which a plurality of the switches, the first linkage and the second linkage are mounted. The mounting surface is a plane, and the plurality of the switches, the first linkage and the second linkage are located on the same plane.

2. The door lock device according to claim 1, characterized in that, The first linkage is installed on the bracket. When the door hook is in the second position, the door hook is connected to the first linkage. When the door hook is in the first position, the door hook is separated from the first linkage. The door hook can drive the first linkage to trigger or stop a portion of the multiple switches. The second linkage is mounted on the bracket. When the trigger is in the fourth position, the trigger pushes the second linkage to move. When the trigger is in the third position, the trigger separates from the second linkage to trigger or turn off another part of the multiple switches.

3. The door lock device according to claim 2, characterized in that, The door lock device is used in a cooking appliance, and the plurality of the switching elements include: A first switch is used to start or stop the electronic control unit of the cooking appliance. The first switch has a first contact, which is turned on when the first contact is pressed. A second switch is used to activate the monitoring unit of the cooking appliance. The second switch has a second contact, which shuts off when the second contact is pressed. When the door hook moves from the first position to the second position, the door hook drives the first linkage to sequentially press the second contact and the first contact; When the door hook moves from the second position to the first position, the door hook causes the first linkage to separate from the first contact and the second contact in sequence.

4. The door lock device according to claim 3, characterized in that, The first linkage component has a hook lock component, and the door hook has a latch adapted to the hook lock component; During the process of the door hook moving from the first position to the second position, the hook lock extends into the bayonet so that the door hook can drive the first linkage to move. During the process of the door hook moving from the second position to the first position, the hook lock separates from the bayonet.

5. The door lock device according to claim 4, characterized in that, Also includes: An elastic element is installed on the bracket, and one end of the elastic element is connected to the first linkage element; During the process of the door hook moving to the second position and driving the first linkage member to move, the elastic member is deformed by the first linkage member, and the elastic member applies a pulling force to the first linkage member to make the hook lock member fit against the inner wall of the bayonet. During the process of the door hook moving towards the first position and driving the first linkage member to move, the elastic member is deformed by the first linkage member, and the elastic member applies a force to the first linkage member in a direction away from the first contact point and the second contact point.

6. The door lock device according to claim 2, characterized in that, The plurality of said switching elements also include: A third switch is used to start or stop the heating component of the cooking appliance. The third switch has a third contact. When the third contact is pressed, the third switch is turned on. When the trigger moves from the third position to the fourth position, the trigger pushes the second linkage to press the third contact.

7. The door lock device according to any one of claims 2 to 6, characterized in that, The first opening is disposed opposite to the first linkage member, and the first opening is used to insert the door hook. The second opening is disposed opposite to the second linkage member, and the second opening is used to insert the trigger member.

8. The door lock device according to claim 1, characterized in that, The width of the insertion port is less than or equal to 3 mm.

9. A cooking utensil, characterized in that, include: The door lock device as described in any one of claims 1 to 8.

10. The cooking utensil according to claim 9, characterized in that, Also includes: The cabinet includes a cooking cavity, and the bracket in the door locking device is mounted on the side wall of the cabinet; A door is movably connected to the housing, the door being used to open or close the cooking cavity, a door hook and a trigger in the door locking device being installed on the side of the door facing the housing, and a front plate in the door locking device facing the door; When the door closes the cooking cavity, the door moves the door hook and the trigger. The door hook first moves the first linkage of the door lock device to press the second contact of the second switch of the door lock device and the first contact of the first switch of the door lock device in sequence. Then the trigger moves the second linkage of the door lock device to press the third contact of the third switch of the door lock device. When the door opens the cooking cavity, the door moves the door hook and the trigger. The trigger first separates from the second linkage, so that the second linkage separates from the third contact. Then, the door hook moves the first linkage to separate from the first contact and the second contact in sequence.

11. The cooking utensil according to claim 9 or 10, characterized in that, The cooking appliances include microwave ovens, microwave-steam-grill combos, or microwave-grill machines.

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