CN106913224B

CN106913224B - Cooking utensil

Info

Publication number: CN106913224B
Application number: CN201710280793.0A
Authority: CN
Inventors: 邱向阳; 王巍; 卿光华; 胡志雄; 林炳鑫
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2017-04-26
Filing date: 2017-04-26
Publication date: 2024-03-01
Anticipated expiration: 2037-04-26
Also published as: CN106913224A

Abstract

The invention discloses a cooking utensil, which comprises a cavity, a door body and a door lock assembly, wherein the door body can be rotationally connected with the cavity, the door lock assembly comprises an electromagnetic pin door lock, a lock hook and a lock catch, the electromagnetic pin door lock is arranged on the cavity and comprises a lock pin capable of being positioned at a locking position and an unlocking position, the lock hook is rotationally arranged on the cavity, the lock catch is arranged on the door body, when the lock pin is positioned at the locking position, the lock pin locks the rotation of the lock hook so that the lock hook can prevent the door body from being opened through the lock catch, and when the lock pin is positioned at the unlocking position, the lock pin releases the locking of the rotation of the lock hook so that the door body can be opened. In the cooking utensil, the lock pin positioned at the locking position can lock the door body, so that the safety accident caused by the accidental opening of the door body is prevented, and the safety of a user using the cooking utensil is ensured.

Description

Cooking utensil

Technical Field

The invention relates to the technical field of household appliances, in particular to a cooking appliance.

Background

Cooking appliances currently on the market, for example: the electric steaming furnace, the electric oven and the like are not provided with safety door locks, and the safety accidents such as scalding and the like can be caused by the fact that children open the door by mistake or open the door without consciousness of protection.

Disclosure of Invention

The present invention is directed to solving at least one of the technical problems existing in the related art. For this reason, the embodiment of the present invention needs to provide a cooking appliance.

The door body can be rotatably connected with the cavity, the door lock assembly comprises an electromagnetic pin door lock, a lock hook and a lock catch, the electromagnetic pin door lock is arranged on the cavity and comprises a lock pin capable of being positioned at a locking position and an unlocking position, the lock hook is rotatably arranged on the cavity, the lock catch is arranged on the door body, when the lock pin is positioned at the locking position, the lock pin locks the rotation of the lock hook to enable the lock hook to prevent the door body from being opened through the lock catch, and when the lock pin is positioned at the unlocking position, the lock pin releases the locking of the rotation of the lock hook to enable the door body to be opened.

In the cooking utensil, the lock pin positioned at the locking position can lock the door body, so that the safety accident caused by the accidental opening of the door body is prevented, and the safety of a user using the cooking utensil is ensured.

In some embodiments, the cooking appliance comprises a fixing frame, the fixing frame comprises a first side face and a second side face which are opposite to each other, the lock hook can be rotatably connected to the first side face, the electromagnetic pin door lock comprises a body arranged on the second side face, the lock pin can be telescopically connected with the body, a through hole penetrating through the first side face and the second side face is formed in the fixing frame, and the lock pin penetrates through the through hole.

In some embodiments, the second side surface is provided with a receiving portion, the receiving portion is provided with a receiving groove, and a side wall of the receiving groove is formed with an elastic fastening piece, and the fastening piece fastens the body in the receiving groove.

In some embodiments, the latch hook includes a rotating shaft portion, a locking portion and a buckling portion, the rotating shaft portion connects the locking portion and the buckling portion, the rotating shaft portion can be rotatably connected with the cavity, when the latch pin is located at the locking position, the latch pin penetrates through the locking portion to lock rotation of the latch hook, the buckling portion is buckled with the lock catch, when the latch pin is located at the unlocking position, the latch pin is located outside the locking portion to unlock rotation of the latch hook, and the door body can drive the lock catch to be separated from the buckling portion.

In some embodiments, the latch hook includes an arcuate connecting portion spaced from the shaft portion, the connecting portion connecting the locking portion and the buckling portion.

In some embodiments, the cooking appliance comprises a fixing frame arranged on the cavity, a shaft is arranged on the fixing frame, a convex strip is arranged on the side face of the shaft, a shaft hole is formed in the shaft hole, a guide groove matched with the convex strip in shape is formed in the side face of the shaft hole, and the convex strip abuts against the end face of the shaft part and is staggered with the guide groove along the rotation direction of the lock hook.

In some embodiments, the cooking appliance comprises an inductive switch and a controller, the controller is connected with the inductive switch and the electromagnetic pin door lock, the inductive switch is used for detecting whether the door body is closed, and the controller is used for controlling the lock pin to be located at the locking position and controlling the cooking appliance to work when the door body is closed.

In some embodiments, the cooking appliance comprises a heating device, a temperature sensor and a controller, wherein the controller is connected with the heating device, the temperature sensor and the electromagnetic pin door lock, the heating device is used for heating the cavity, the temperature sensor is used for detecting the temperature of the cavity, and the controller is used for controlling the lock pin to be positioned at the unlocking position when the temperature of the cavity is smaller than the set temperature after the cooking appliance is operated.

In certain embodiments, the heating device comprises at least one of a steam generator, an electric heating tube, and a microwave generating device.

In some embodiments, the cooking appliance includes an input panel for generating an unlock command and a controller for controlling the lock pin to be in the unlock position according to the unlock command.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a perspective view schematically illustrating a cooking appliance according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a portion II of the cooking appliance of FIG. 1;

fig. 3 is another perspective view of a cooking appliance according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view of a portion IV of the cooking appliance of fig. 3;

FIG. 5 is a schematic perspective view of a door lock assembly according to an embodiment of the present invention;

FIG. 6 is an exploded schematic view of a door lock assembly according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a door lock assembly according to an embodiment of the present invention;

FIG. 8 is another cross-sectional schematic view of a door lock assembly according to an embodiment of the present invention;

fig. 9 is another perspective view of a door lock assembly according to an embodiment of the present invention;

FIG. 10 is a further schematic cross-sectional view of a door lock assembly according to an embodiment of the present invention;

FIG. 11 is yet another cross-sectional schematic view of a door lock assembly according to an embodiment of the present invention;

fig. 12 is a schematic block diagram of a cooking appliance according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 4, a cooking appliance 100 according to an embodiment of the present invention includes a cavity 102, a door 104 and a door lock assembly 106, wherein the door 104 is rotatably connected to the cavity 102, the door lock assembly 106 includes an electromagnetic latch lock 108, a latch hook 110 and a latch 112, the electromagnetic latch lock 108 is disposed on the cavity 102 and includes a latch 114 capable of being located at a locking position and an unlocking position, the latch hook 110 is rotatably disposed on the cavity 102, and the latch 112 is disposed on the door 104. When latch 114 is in the locked position, latch 114 locks rotation of shackle 110 such that shackle 110 prevents door 104 from opening by shackle 112, and when latch 114 is in the unlocked position, latch 114 unlocks rotation of shackle 110 to enable door 104 to be opened.

In the cooking appliance 100, the locking pin 114 located at the locking position can lock the door 104, so as to prevent the door 104 from being accidentally opened to cause a safety accident, and ensure the safety of the user using the cooking appliance 100.

Specifically, the cooking appliance 100 may be a cooking appliance that uses the cavity 102 to place processed food, such as heated, cooked, stored food, which is processed in the cavity 102. By way of example, the cooking appliance 100 may be a microwave oven, an electric steamer, a flash steamer, an electric oven, or the like.

The cavity 102 is provided with a cavity opening (not shown) for a user to take and place processed foods, and the door 104 is used for opening and closing the cavity opening.

In an embodiment of the present invention, locking pin 114 is in a locked position as shown in FIGS. 5, 7 and 8; the locking pin 114 is shown in the unlocked position with reference to figures 9, 10 and 11.

In some embodiments, the latch 112 may be secured to an end of the door 104 remote from the door rotation axis, e.g., the door 104 may be rotatably coupled to a lower end of the front plate 116 of the cavity 102, the door rotation axis may be positioned at a lower end of the front plate 116, the lower end of the door 104 may be coupled to the door rotation axis, and the latch 112 may be secured to an upper end of the door 104. In one example, the latch 112 may be secured to the door 104 by a screw-type fastener.

In some embodiments, upon power-up of the electromagnetic latch 108, the locking pin 114 is driven by an electromagnetic member within the electromagnetic latch 108 to extend outwardly such that the locking pin 114 is in a locked position, and the outward extension of the locking pin 114 deforms an elastic member of the electromagnetic latch 108; after the electromagnetic latch 108 is powered off, the magnetism of the electromagnetic member is lost, and the restoring force of the elastic member drives the latch 114 to retract into the electromagnetic latch 108, so that the latch 114 is located at the unlocking position. It will be appreciated that the solenoid may utilize either a suction or a repulsive force to actuate extension of latch 114.

In some embodiments, referring to fig. 8, the cooking apparatus 100 includes a fixing frame 118, the fixing frame 118 includes a first side 120 and a second side 122 opposite to each other, the latch hook 110 is rotatably connected to the first side 120, the electromagnetic latch lock 108 includes a body 124 disposed on the second side 122, the latch 114 is telescopically connected to the body 124, the fixing frame 118 is provided with a through hole 126 penetrating the first side 120 and the second side 122, and the latch 114 is provided with the through hole 126.

In this manner, installation of the door lock assembly 106 may be facilitated.

Specifically, in an embodiment of the present invention, the electromagnetic latch lock 108 is disposed on the cavity by a mount 118. The mount 118 is sheet-like, with the mount 118 mounted on the left side plate 128 of the cavity 102 and partially protruding relative to the top plate 130 of the cavity 102. This facilitates mounting of the electromagnetic latch lock 108 on the second side 122.

Electromagnetic members, elastic members, etc., may be disposed within the body 124 of the electromagnetic pin door lock 108. Latch 114 is telescopically received through body 124.

In some embodiments, the second side 122 is provided with a receiving portion 132, the receiving portion 132 is provided with a receiving groove 134, and a resilient fastening member 136 is formed on a side wall of the receiving groove 134, where the fastening member 136 fastens the body 124 in the receiving groove 134.

In this way, the electromagnetic latch lock 108 is installed in a simple and quick manner.

When the electromagnetic latch lock 108 is installed, the latch 114 is aligned with the through hole 126, and then the electromagnetic latch lock 108 is pressed into the accommodating groove 134, so that the buckling piece 136 deforms to be opened, and when the body 124 is positioned in the accommodating groove 134, the buckling piece 136 recovers to deform to clamp the body 124. In the embodiment of the invention, the number of the fastening members 136 is two, and the two fastening members 136 fasten the upper and lower sides of the body 124 respectively.

Preferably, the fixing frame 118 and the accommodating portion 132 are integrally formed. In one example, the mount 118 and the receptacle 132 may be made of plastic.

In some embodiments, referring to fig. 6, the latch hook 110 includes a rotating shaft portion 138, a locking portion 140 and a buckling portion 142, the rotating shaft portion 138 connects the locking portion 140 and the buckling portion 142, the rotating shaft portion 138 can be rotatably connected with the cavity 102, when the latch 114 is located at the locking position, the latch 114 penetrates the locking portion 140 to lock the rotation of the latch hook 110, the buckling portion 142 is buckled with the latch 112, when the latch 114 is located at the unlocking position, the latch 114 is located outside the locking portion 140 to release the rotation of the latch hook 110, and the door 104 can drive the latch 112 to disengage from the buckling portion 142.

In this manner, locking and unlocking of shackle 110 with latch 114 and shackle 112 is achieved.

Specifically, the lock pin 114 is located at the unlock position, as shown in fig. 9, 10 and 11, the lock pin 114 releases the rotation of the lock hook 110, and when the door 104 is opened, the door 104 drives the lock catch 112 to move away from the cavity 102, and the buckling portion 142 buckled with the lock catch 112 is driven by the lock catch 112 to rotate the lock hook 110, such as counterclockwise in fig. 7. As the door 104 is further opened, the latch 112 disengages from the catch 142, as shown in fig. 10, so that the door 104 can be freely opened. At this time, the latch hook 110 can maintain the current position.

When the door 104 is closed, the latch 112 extends into the latch hook 110, such as in the direction Y2 in fig. 10, and pushes the flap 144 on the latch hook 110 to rotate, such as clockwise in fig. 10, the latch hook 110. As the door 104 is further closed, the latch portion 142 is latched with the latch 112. When door 104 is fully closed, locking portion 140 corresponds to the position of locking pin 114, and electromagnetic latch lock 108 is energized such that locking pin 114 is in the locked position, locking pin 114 passing through locking portion 140 to lock rotation of latching hook 110, as shown in fig. 5, 7 and 8.

In some embodiments, the shackle 110 includes an arcuate connecting portion 146, the connecting portion 146 being spaced from the swivel portion 138, the connecting portion 146 connecting the locking portion 140 and the clasp 142.

In this way, the rotation of the latch hook 110 can be made smoother. Preferably, the shape of the connecting portion 146 is the same as the circular arc track Y1 formed by the rotation of the latch hook 110, as shown in fig. 10.

In some embodiments, the cooking apparatus 100 includes a fixing frame 118 disposed on the cavity 102, a shaft 148 is disposed on the fixing frame 118, a protruding strip 150 is disposed on a side surface of the shaft 148, a shaft hole 152 is disposed on the rotating shaft portion 138, a guiding groove 154 matching the protruding strip 150 is disposed on a side surface of the shaft hole 152, and the protruding strip 150 abuts against an end surface of the rotating shaft portion 138 and is staggered with the guiding groove 154 along a rotation direction of the latch hook 110.

In this way, the protrusion 150 provides a predetermined rotation friction force for the latch hook 110, so that the latch hook 110 can be rotated by a predetermined external force and can maintain the current angular position (i.e. the current position) after the external force is removed.

Further, the guide groove 154 may be used to guide the installation of the latch hook 110, for example, when installing the latch hook 110, the guide groove 154 is aligned with the protrusion 150, and then the latch hook 110 is pushed into the shaft 148 direction, so that the latch hook 110 is installed at a predetermined position of the fixing frame 118 under the cooperation of the guide groove 154 and the protrusion 150. Thereafter, the latch hook 110 is rotated such that the protrusion 150 is staggered from the guide groove 154.

In the present example, the shaft 148 is disposed on the first side 120 of the mount 118.

In some embodiments, referring to fig. 12, the cooking apparatus 100 includes a sensor switch 156 and a controller 158, the controller 158 is connected to the sensor switch 156 and the electromagnetic latch lock 108, the sensor switch 156 is used for detecting whether the door 104 is closed, and the controller 158 is used for controlling the latch 114 to be located at the locking position and controlling the cooking apparatus 100 to operate when the door 104 is closed.

In this way, automation of locking of the door 104 and safe operation of the cooking appliance 100 are achieved.

Specifically, the controller 158 may control the cooking appliance 100 to operate only when the door 104 is locked. The cooking device 100 operates to start a process such as heating and cooking the processed food by the cooking device 100.

In an embodiment of the present invention, the inductive switch 156 is a micro switch. When the door 104 is closed, the lock hook 110 can be pressed down on the button 160 on the inductive switch 156 to enable the inductive switch 156 to send out a corresponding trigger signal, and after the controller 158 receives the trigger signal, it determines that the door 104 is closed, then controls the electromagnetic pin door lock 108 to be powered on, and starts the cooking utensil 100 to work. When the door 104 is unlocked and opened, the shackle 110 may release the button 160 of the inductive switch 156.

It is understood that closing the door 104 means that the door 104 is completely closed, and the door 104 abuts against the front plate 116 of the cavity 102.

In some embodiments, the cooking apparatus 100 includes a heating device 162, a temperature sensor 164, and a controller 158, the controller 158 is connected to the heating device 162, the temperature sensor 164, and the electromagnetic latch lock 108, the heating device 162 is used for heating the cavity 102, the temperature sensor 164 is used for detecting the temperature of the cavity 102, and the controller 158 is used for controlling the latch 114 to be located at the unlocking position when the temperature of the cavity 102 is less than the set temperature after the operation of the cooking apparatus 100 is completed.

In this manner, the controller 158 controls the door 104 to automatically unlock after ensuring that the temperature of the cavity 102 falls to a safe temperature.

Specifically, when setting the operation parameters of the cooking appliance 100, the operation duration of the cooking appliance 100 is also generally required to be set. When the cooking appliance 100 starts to operate, the controller 158 controls the heating device 162 to be started, and the controller 158 starts timing. When the timer is completed, the controller 158 controls the heating device 162 to be turned off, the cooking appliance 100 is finished, and the temperature of the cavity 102 is slowly reduced. When the temperature of the cavity 102 is less than the set temperature, the controller 158 controls the locking pin 114 to be in the unlocking position, so that the door 104 is unlocked, and the user can open the door 104 to take out the processed food.

In certain embodiments, the heating device 162 comprises at least one of a steam generator, an electric heating tube, and a microwave generating device. In this way, the heating variety of the cooking appliance 100 is enriched, and the user's demand is satisfied.

Specifically, the heating device 162 includes at least one of a steam generator, an electric heating tube, and a microwave generating device, including the following embodiments: the heating device 162 includes a steam generator; the heating device 162 includes an electric heating tube; the heating device 162 includes a microwave generating device; the heating device 162 includes a steam generator and an electric heating tube; the heating device 162 includes an electric heating tube and a microwave generating device; the heating device 162 includes a steam generator and a microwave generating device; the heating device 162 includes a steam generator, an electric heating tube, and a microwave generating device.

The microwave generating means may comprise a magnetron and a semiconductor microwave source, or comprise a magnetron, or comprise a semiconductor microwave source.

When the heating device comprises a microwave generating device, the cooking appliance can further comprise a waveguide, a stirring antenna and other components; when the heating device comprises a steam generator, the cooking appliance can further comprise a water tank, a water pump, a pipeline and the like.

In certain embodiments, cooking utensil 100 includes an input panel 166 and a controller 158, wherein input panel 166 is configured to generate an unlock command and controller 158 is configured to control locking pin 114 to be in the unlocked position according to the unlock command.

Thus, a manual unlocking function is provided for the user, and the requirements of the user are met.

Specifically, the input panel 166 may be disposed on the front plate 116 of the cavity 102 above the door 104. This facilitates user operation of the input panel 166. In some embodiments, the controller 158 may be disposed on the input panel 166.

The input panel 166 includes an unlock button (not shown), and when the user activates the unlock button, the input panel 166 generates an unlock command to unlock the door 104. In the case that the user needs to open the door 104 when the cooking appliance 100 is in operation, the manual unlocking function can be provided for the user, so that the user can open the door 104 under the conscious of protection.

The unlocking button may be a mechanical button, a touch button, a virtual button, or the like, and is not particularly limited herein.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. The cooking appliance is characterized by comprising a cavity, a door body and a door lock assembly, wherein the door body can be rotationally connected with the cavity, the door lock assembly comprises an electromagnetic pin door lock, a lock hook and a lock catch, the electromagnetic pin door lock is arranged on the cavity and comprises a lock pin capable of being positioned at a locking position and an unlocking position, the lock hook is rotatably arranged on the cavity, the lock catch is arranged on the door body, when the lock pin is positioned at the locking position, the lock pin locks the rotation of the lock hook so that the lock hook can prevent the door body from being opened through the lock catch, and when the lock pin is positioned at the unlocking position, the lock pin releases the locking of the rotation of the lock hook so that the door body can be opened;

the cooking utensil comprises a fixing frame, wherein the fixing frame comprises a first side face and a second side face which are opposite to each other, the lock hook can be rotatably connected to the first side face, the electromagnetic pin door lock comprises a body arranged on the second side face, the lock pin can be telescopically connected with the body, the fixing frame is provided with a through hole penetrating through the first side face and the second side face, and the lock pin penetrates through the through hole;

the cooking utensil includes inductive switch and controller, the controller is connected inductive switch with the electromagnetism round pin lock, inductive switch is used for detecting whether the door body is closed, the controller is used for when the door body is closed, control the lockpin is located locking position and control cooking utensil work.

2. The cooking device of claim 1, wherein the second side is provided with a receiving portion, the receiving portion is provided with a receiving groove, and a side wall of the receiving groove is formed with an elastic fastening member, and the fastening member fastens the body in the receiving groove.

3. The cooking appliance of claim 1, wherein the latch hook includes a rotation shaft portion, a locking portion, and a fastening portion, the rotation shaft portion connects the locking portion and the fastening portion, the rotation shaft portion is rotatably connected to the cavity, when the lock pin is located at the locking position, the lock pin penetrates the locking portion to lock rotation of the latch hook, the fastening portion is fastened with the lock catch, when the lock pin is located at the unlocking position, the lock pin is located outside the locking portion to unlock rotation of the latch hook, and the door body can drive the lock catch to be separated from the fastening portion.

4. A cooking appliance according to claim 3, wherein the latch hook includes an arcuate connecting portion spaced from the shaft portion, the connecting portion connecting the locking portion and the snap-fit portion.

5. The cooking device according to claim 3, wherein the cooking device comprises a fixing frame arranged on the cavity, a shaft is arranged on the fixing frame, a protruding strip is arranged on the side face of the shaft, a shaft hole is formed in the shaft portion, a guide groove matched with the protruding strip in shape is formed in the side face of the shaft hole, and the protruding strip is abutted to the end face of the shaft portion and is staggered with the guide groove along the rotation direction of the latch hook.

6. The cooking appliance of claim 1, wherein the cooking appliance comprises a heating device, a temperature sensor and a controller, the controller is connected with the heating device, the temperature sensor and the electromagnetic pin door lock, the heating device is used for heating the cavity, the temperature sensor is used for detecting the temperature of the cavity, and the controller is used for controlling the lock pin to be positioned at the unlocking position after the operation of the cooking appliance is finished and when the temperature of the cavity is smaller than a set temperature.

7. The cooking appliance of claim 6, wherein the heating means comprises at least one of a steam generator, an electric heating tube, and a microwave generating device.

8. The cooking appliance of claim 1, wherein the cooking appliance includes an input panel for generating an unlock command and a controller for controlling the lock pin to be in the unlock position in accordance with the unlock command.