CN215686721U - Door body assembly of cooking appliance and cooking appliance with door body assembly - Google Patents

Abstract

The utility model discloses a door body assembly of a cooking appliance and the cooking appliance with the door body assembly, wherein the cooking appliance comprises a cavity body with a cooking cavity and a heating element used for heating the cooking cavity, and the door body assembly comprises: the door body is rotatably connected with the cavity through a hinge and is used for opening and closing the cooking cavity; a micro switch electrically connected to the heating member; the transmission piece is connected between the hinge and the microswitch; when the door body closes the cooking cavity, the hinge drives the microswitch to be closed through the transmission part, and when the door body opens the cooking cavity, the hinge drives the microswitch to be disconnected through the transmission part. According to the door body assembly of the cooking appliance, the door opening and power off of the cooking appliance are realized by arranging the micro switch and the transmission part for driving the micro switch on the door body, so that personal injuries such as electric shock or scalding are avoided, and the safety of products is greatly improved.

Description

Door body assembly of cooking appliance and cooking appliance with door body assembly

Technical Field

The utility model relates to the technical field of household appliances, in particular to a door body assembly of a cooking appliance and the cooking appliance with the door body assembly.

Background

In the related art, it is pointed out that the existing cooking devices with a pull-down door, such as an oven and a steam oven, can open an oven door at any time during the working process, the cooking device is still in a power-on state after the oven door is opened, and devices such as a heating tube or a steam generator in an oven cavity of the cooking device are still in a working state, so that personal injuries such as electric shock or scalding are easily caused.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the door body assembly of the cooking appliance, which can realize the door opening and power off of the cooking appliance, so that personal injuries such as electric shock or scalding are avoided, and the safety of a product is greatly improved.

The utility model further provides a cooking appliance with the door body structure of the cooking appliance.

According to the first aspect of the utility model, the door body assembly of the cooking appliance comprises a cavity body with a cooking cavity and a heating element for heating the cooking cavity, and the door body assembly comprises: the door body is rotatably connected with the cavity through a hinge and is used for opening and closing the cooking cavity; a micro switch electrically connected to the heating element; the transmission piece is connected between the hinge and the microswitch; when the door body closes the cooking cavity, the hinge drives the microswitch to be closed through the transmission part, and when the door body opens the cooking cavity, the hinge drives the microswitch to be disconnected through the transmission part.

According to the door body assembly of the cooking appliance, the door opening and power off of the cooking appliance are realized by arranging the micro switch and the transmission part for driving the micro switch on the door body, so that personal injuries such as electric shock or scalding are avoided, and the safety of products is greatly improved.

In some embodiments, the driving member includes a driving rod, one end of the driving rod is formed as a touch portion, the driving rod is movable between a first position and a second position, when the door body closes the cooking cavity, the hinge drives the driving rod to move to the first position, the touch portion touches a contact of the micro switch, when the door body opens the cooking cavity, the hinge drives the driving rod to move to the second position, and the touch portion is separated from the contact.

In some embodiments, the moving direction of the driving rod is a first direction, the direction perpendicular to the first direction is a second direction, the actuating portion includes an actuating section and an avoiding section connected in the first direction, the actuating section and the avoiding section are arranged at a distance in the second direction, the actuating section is opposite to and abutted against the contact in the second direction when the driving rod is in the first position, and the avoiding section is opposite to and spaced from the contact in the second direction when the driving rod is in the second position.

In some embodiments, the touch part further includes: and one end of the connecting section is connected with the touch section, and the other end of the connecting section is far away from the contact and extends outwards in the direction towards the free end of the driving rod and is connected with the avoiding section.

In some embodiments, one of the door body and the drive lever is provided with a guide groove extending in a moving direction of the drive lever and the other is provided with a guide post slidably fitted in the guide groove.

In some embodiments, the driving member further comprises a driving rod, one end of which is rotatably connected to the hinge and the other end of which is connected to the driving rod.

In some embodiments, the door body is provided with a limiting groove extending along a moving direction of the driving rod, the transmission member is provided with a limiting column, the limiting column abuts against one end edge of the limiting groove when the driving rod is at the first position, and the limiting column abuts against the other end edge of the limiting groove when the driving rod is at the second position.

In some embodiments, the micro switch is disposed on the door body, the hinge includes a first arm and a second arm hinged to each other, the first arm is fixed to the door body, the second arm is fixed to the cavity of the cooking appliance, and the transmission rod is connected to the second arm.

In some embodiments, the drive link is rotatably coupled to the second arm with a centerline of rotation of the drive link spaced from the pivot axis of the hinge.

The cooking appliance according to the second aspect of the utility model comprises the door body assembly of the cooking appliance according to the first aspect of the utility model.

According to the cooking appliance, the door body assembly of the cooking appliance is arranged, so that the overall performance of the cooking appliance is improved.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

FIG. 1 is a schematic view of a door assembly of a prior art cooking appliance;

FIG. 2 is a schematic view of a door assembly of the cooking appliance according to the embodiment of the utility model;

FIG. 3 is a schematic view of the microswitch, hinge and transmission member illustrated in FIG. 2, wherein the drive lever is in a first position, the trigger is spaced from the contacts and the microswitch is in an off state;

FIG. 4 is a schematic view of the microswitch, hinge and transmission member illustrated in FIG. 2, wherein the drive lever is in the second position, the trigger is in contact with the contact and the microswitch is in the ON state;

fig. 5 is a partially enlarged view of the touch portion shown in fig. 4.

Reference numerals:

a cooking appliance 100;

a cavity 1, a cooking cavity 11;

a door body assembly 3;

a door body 31;

microswitch 32, contact 321;

a hinge 33, a first arm 331, a guide post 3311, a limit groove 3312, a second arm 332;

the driving device comprises a driving member 34, a driving rod 341, a guide groove 3411, a driving rod 342, a limit column 3421, a touch part 343, a touch section 3431, a connecting section 3432 and an avoiding section 3433.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

First, a cooking appliance 100 according to a second aspect of the present invention will be briefly described with reference to fig. 2 to 5, wherein the cooking appliance 100 includes a door assembly 3 according to the first aspect of the present invention.

The cooking appliance 100 according to the embodiment of the present invention includes: cavity 1, heating member and door body subassembly 3.

Specifically, as shown in fig. 2, the chamber body 1 has a cooking chamber 11, and a heating member for heating the cooking chamber 11.

A door assembly 3 of an electric cooking appliance according to an embodiment of the first aspect of the present invention will be described with reference to fig. 2 to 5.

As shown in fig. 2, according to the door assembly 3 of the cooking appliance 100 according to the embodiment of the first aspect of the present invention, the door assembly 3 includes: door body 31, micro-gap switch 32, hinge 33 and driving medium 34. Specifically, the door body 31 is rotatably connected to the cavity 1 by a hinge 33 for opening and closing the cooking cavity 11; the micro switch 32 is electrically connected to the heating element, for example, the micro switch 32 may be connected in series with the heating element in a circuit, such that when the micro switch 32 is turned off, the heating element may be powered on, when the micro switch 32 is turned on, in other examples, the micro switch 32 may be in communication connection with the heating element, for example, the cooking appliance 100 further includes a controller, the controller is in communication connection with the micro switch 32 and the heating element, when the controller detects that the micro switch 32 is turned off, the controller may control the heating element to be turned off, when the controller detects that the micro switch 32 is turned on, the controller may control the heating element to be turned on, thereby achieving the effect of controlling the heating element to be turned on or off through the micro switch 32.

The transmission member 34 is connected between the hinge 33 and the microswitch 32; when the door 31 closes the cooking cavity 11, the hinge 33 drives the microswitch 32 to close through the transmission member 34, and when the door 31 opens the cooking cavity 11, the hinge 33 drives the microswitch 32 to open through the transmission member 34. Therefore, the on-off of the micro switch and the on-off of the door body 31 are synchronously carried out, and the micro switch 32 can control the on-off of the heating element, so that the aim of opening the door and cutting off the power is fulfilled.

As shown in fig. 2, the cavity 1 of the cooking appliance 100 is formed with a cooking cavity 11 with an open front side, and a door 31 is openably covered on the open side of the cooking cavity 11, wherein the shape of the door 31 is determined by the shape of the opening at the front of the cavity 1, and the cooking cavity 11 can be used for placing food to be cooked.

As shown in fig. 2, the two hinges 33 are provided, the two hinges 33 are respectively provided at the left and right sides of the door body 31, the micro switch 32 and the transmission member 34 are provided at one side of the door body 31 in the left-right direction and are connected to the hinge 33 located at the same side, so that when the hinge 33 drives the transmission member 34 to move, the stroke of the transmission member 34 triggering the micro switch 32 to start and stop can be reduced.

Wherein the microswitch 32 is a pressure actuated fast switch, also called sensitive switch. Micro-gap switch 32's contact interval is little, the action stroke is short, it is little, the break-make is rapid according to power, controls cooking appliance 100's circular telegram through setting up micro-gap switch 32, has shortened cooking appliance 100's the time between opening the door and cutting off the power greatly, and the micro-gap switch 32 is connected with being connected electrically between the heating member to realize micro-gap switch 32 controls opening of heating member heating and stop, and then reduced the possibility that the operator electrocuted or scalded.

Preferably, the hinge 33 can be a damping hinge, and the damping hinge has the characteristics that the damping hinge has a buffering function when the door body 31 is closed, so that noise generated by collision between the door body 31 and the cavity 1 when the door body is closed can be greatly reduced, the possibility of damage to the door body 31 of the cooking appliance 100 in the use process is reduced, the use quality of an operator is further improved, and the service life of the cooking appliance 100 is prolonged.

In the process of opening the door body 31, the hinge 33 drives the transmission member to move, and the transmission member 34 drives the micro switch 32 to be switched off, so that the heating member is powered off, the cooking appliance 100 stops heating while the door is opened, and personal injuries such as contact or scalding are avoided. When the door body 31 is closed, the hinge 33 drives the transmission member 34 to move again, the transmission member 34 drives the micro switch 32 to close, so that the heating member is powered on again, and at this time, the cooking appliance 100 can continue to heat and cook.

According to the door body assembly 3 of the cooking electric appliance 100, the door opening and power off of the cooking electric appliance 100 are realized, so that personal injuries such as electric shock or scalding are avoided, and the safety of products is greatly improved.

In one embodiment of the present invention, as shown in fig. 3, the transmission member 34 may include a driving rod 341, one end of the driving rod 341 (e.g., the front end of the driving rod 341 shown in fig. 3) is formed as a trigger 343, and the driving rod 341 is movable between a first position (e.g., the position where the driving rod 341 shown in fig. 3 is located) and a second position (e.g., the position where the driving rod 341 shown in fig. 4 is located).

When the door 31 closes the cooking cavity 11, the hinge 33 drives the driving rod 341 to move to the first position, the touch part 343 touches the contact 321 of the micro switch 32, at this time, the micro switch 32 is in the on state, and the heating element is in the on state, and can be used for cooking and heating. When the door 31 opens the cooking cavity 11, the hinge 33 drives the driving rod 341 to move to the second position, at this time, the touching part 343 is separated from the contact 321, the micro switch 32 is in the off state, the heating element stops working, and the door opening power-off of the cooking appliance 100 is realized. Thereby establish the relation between the outage and the circular telegram of opening and shutting of door body 31 and cooking device 100, realize when opening door body 31, the control heating member outage, and then avoid the emergence of people's injuries such as electrocution and scald.

As shown in fig. 2, the micro switch 32 is a normally closed switch, the contact 321 of the micro switch 32 is connected to the elastic member inside the micro switch 32, when the contact 321 is pressed and moves to a critical point, the circuit inside the micro switch 32 is quickly turned on, so that the cooking appliance 100 is powered on, the heating element works, and when the contact 321 is in an unstressed state, the micro switch 32 is in an off state, thereby achieving the effect of power off.

Specifically, as shown in fig. 2, when the door 31 opens and closes the cooking cavity 11, the driving rod 341 moves between the first position and the second position, and the driving rod 341 drives the touching portion 343 to move in the same direction as the driving rod 341, so as to achieve the contact and separation between the touching portion 343 and the contact 321 of the micro switch 31, thereby achieving the connection and disconnection of the circuit, and further, in a specific operation process, opening the door 31 and powering off the cooking appliance 100; door 31 is closed and cooking appliance 100 is powered on. The danger of electric shock and scalding of the operator is reduced.

Since the touching portion 343 continuously moves relative to the contact 321 of the micro switch 21 during operation, the touching portion 343 is continuously worn due to friction, and therefore, preferably, the touching portion 343 may be made of a wear-resistant material. For example, the touch part 343 may be made of nylon and glass fiber, so as to be more wear-resistant and environment-friendly, and reduce noise when the touch part 343 contacts with the contact 321 of the micro switch 32, thereby improving the use experience of the operator.

In one embodiment of the present invention, as shown in fig. 3, the moving direction of the driving rod 341 is a first direction (e.g., a front-back direction shown in fig. 3), and a direction perpendicular to the first direction is a second direction (e.g., an up-down direction shown in fig. 3). The touching portion 343 includes a touching section 3431 and an avoiding section 3433 connected in the first direction, the touching section 3431 and the avoiding section 3433 are arranged at a distance in the second direction, when the driving rod 341 is at the first position, the touching section 3431 is opposite to and abutted against the contact 321 in the second direction, so that the micro switch 32 is in the on state, and the heating element is in the working state. When the driving rod 341 is at the second position, the avoiding section 3433 is opposite to the contact 321 in the second direction, and the avoiding section 3433 and the contact 321 have a gap in the second direction, so that the microswitch 32 is in an off state, and the heating element stops heating. Thereby translating movement of the drive rod 341 in a first direction into movement of the contact 321 of the microswitch 32 in a second direction.

Further, as shown in fig. 3, the avoiding section 3433 may be configured to have a structure in which the free end is slightly inclined downward, and the inclined angle (for example, the included angle between the free end of the avoiding section 3433 and the first direction of the driving rod 341 shown in fig. 3) may be set to be 2 °, 3 ° and 5 °, so that the gap between the free end of the avoiding section 3433 and the contact 321 in the second direction may be increased, and the requirement on the matching precision between the avoiding section 3433 and the contact 321 of the micro switch 32 is reduced, thereby reducing the process requirement for processing the touching portion 343 and reducing the cost of the cooking appliance 100.

Further, as shown in fig. 3, the micro switch 32 includes a case, the contact 321 is disposed at a lower side of the case and protrudes from a lower surface of the case, the contact 321 is movable in an up-down direction relative to the case, and when the touching portion 343 abuts on the contact 321 of the micro switch 32 and the micro switch 32 is in a power-on state, a gap exists between a side of the touching section 3431 close to the micro switch 32 in the second direction and a lower surface of the case of the micro switch 32. Thereby avoiding friction between the touch segment 3431 and the lower surface of the micro switch 32, and further prolonging the service life of the driving rod 341 and the micro switch 32.

In one embodiment of the present invention, as shown in fig. 3, the trigger 343 may further include a connecting section 3432, one end of the connecting section 3432 (e.g., the rear end of the trigger 343 shown in fig. 3) away from the microswitch 32 is connected to the trigger 3431, and the other end of the connecting section 3432 (e.g., the front end of the trigger 343 shown in fig. 3) extends away from the contact 321 in a direction toward the free end of the driving rod 341 and is connected to the avoiding section 3433. When the door 31 is in the closed state, the contact 321 abuts against the touch section 3431, when the door 31 is opened, the contact 321 moves relative to the touch section 3431, after the contact 321 moves for a certain distance, the contact 321 starts to oppose the connection section 3432 in the second direction, the extrusion force applied to the contact 321 starts to decrease, and in a certain distance during which the contact 321 and the connection section 3432 move in a contacting manner, the extrusion force applied to the contact 321 becomes smaller and smaller until the extrusion force applied to the contact 321 is 0, the micro switch 32 is in the open state, and moves for a certain distance, the contact 321 opposes to the avoiding section 3433 in the second direction, and the contact 321 is spaced from the avoiding section in the second direction.

That is, when the touch portion 343 moves from the touch section 3431 to the contact 321 to the connection section 3432 contacting the contact 321 during the opening of the door 31, as the connection section 3432 moves relative to the contact 321, since the connection section 3432 gradually extends away from the contact 321 in an inclined manner, during the movement of the connection section 3432 in the first direction, the connection section 3432 also moves away from the contact 321 in the second direction relative to the contact 321, so that the connection section 3432 can gradually release the contact 321 in the second direction until the contact 321 moves to the open position, and the micro switch 32 is in the open state; in the process of closing the door 31, when the trigger 343 moves from the avoiding section 3433 to the contact 321 to the connecting section 3432 to the contact 321, the connecting section 3432 gradually approaches the contact 321 in the second direction as the trigger 343 moves along the first direction until contacting with the contact 321, and when the trigger 343 continues to move along the first direction, the connecting section 3432 continues to move towards the second direction, and in the process, the contact 321 is gradually pushed, so that the contact 321 gradually moves towards the interior of the micro switch 32, and when the trigger 343 moves to the point where the trigger 3431 contacts with the contact 321, the contact 321 moves to the closed position, and the micro switch 32 is closed. Therefore, the connecting section 3432 plays a role of guiding and buffering in the process that the contact 321 is driven by the touch part 343 to move along the second direction, and the service life of the microswitch 32 is prolonged.

As shown in fig. 3, the inclination angle of the connection segment 3432 (the angle between the connection segment 3432 and the first direction) is related to the travel amount of the driving rod 341 in the first direction and the operation travel amount of the contact 321 of the micro switch 32 in the second direction. Specifically, the larger the amount of travel of the driving rod 341 in the first direction, the smaller the inclination angle of the connecting section 3432 is, with other conditions unchanged; under otherwise constant conditions, the greater the amount of operative travel of the contact 321 of the microswitch 32 in the second direction, the greater the angle of inclination of the connection segment 3432.

This embodiment may provide the connecting section 3432 with a structure that extends outward away from the contact 321 in a direction toward the free end of the driving rod 341, so that the connecting section 3432 can serve as a guide to convert the movement of the driving rod 341 in the first direction into the movement of the contact 321 in the second direction.

Furthermore, as shown in fig. 3, the contact 321 of the micro switch 32 may be configured as a smooth arc-shaped protruding button, the effective stress direction of the arc-shaped protruding structure is wider than that of the square protruding structure, and the friction between the contact 321 of the micro switch 32 and the connection segment 3432 is smaller, so that the service life of the micro switch 32 and the driving rod 341 is prolonged, and the cost of the post-maintenance is reduced.

In one embodiment of the present invention, as shown in fig. 2, one of the door body 31 and the driving rod 341 is provided with a guide groove 3411, the guide groove 3411 extends in the moving direction of the driving rod 341, and the other of the door body 31 and the driving rod 341 is provided with a guide post 3311, and the guide post 3311 is slidably fitted in the guide groove 3411. That is, the guide groove 3411 may be provided in the door body 31 and the guide post 3311 may be provided in the driving lever 341, or the guide post 3311 may be provided in the door body 31 and the guide groove 3411 may be provided in the driving lever 341 so as to ensure that the movement direction of the driving lever 341 is maintained in the first direction.

Optionally, as shown in fig. 3, the cross-sectional shape of the guiding post 3311 may be circular, and compared with the guiding post 3311 with a square cross-section, the guiding post 3311 with a circular cross-section has a smaller contact area and a smaller friction force with the guiding groove 3411, and simultaneously reduces the requirement of the processing technology of the guiding groove 3411, and in the processing process, the cost of the product can be reduced without affecting the use effect.

For example, in one specific example, the guiding post 3311 may be fixedly disposed on the driving rod 341, the guiding groove 3411 is disposed at a corresponding position on the hinge 33, and the width of the guiding groove 3411 in the second direction is matched with the diameter of the guiding post 3311, so as to ensure that the moving direction of the driving rod 341 is always maintained in the first direction during the whole process of opening and closing the door body 31.

For another example, in another specific example, the guide post 3311 is fixedly disposed on the door body 31 or the hinge 33, and the width of the guide groove 3411 in the second direction and the diameter of the guide post 3311 are matched with each other, thereby achieving the guiding and limiting effects on the driving rod 341.

Further, two guide posts 3311 may be provided at intervals in the first direction, so that the driving rod 341 can reciprocate only in the first direction, thereby improving the accuracy of the cooperation between the driving rod 341 and the micro switch 32 and improving the quality of the cooking appliance 100 as a whole.

In one embodiment of the present invention, as shown in fig. 3, the transmission member 34 further includes a transmission rod 342, one end of the transmission rod 342 (e.g., the rear end of the transmission rod 342 in fig. 3) is rotatably connected to the hinge 33 and the other end (e.g., the front end of the transmission rod 342 in fig. 3) is connected to the driving rod 341. Thereby converting the opening and closing rotation of the hinge 33 into the reciprocating motion of the driving rod 341 in the first direction, and further realizing that the driving rod 341 moves in the first direction while opening or closing the door body.

For example, the transmission rod 342 and the driving rod 341 are rotatably connected through a rotation shaft, through holes matched with the rotation shaft in size are respectively formed in one end of the transmission rod 342 close to the microswitch 32 and one end of the driving rod 341 far from the microswitch 32, and the rotation shaft movably connects one end of the transmission rod 342 close to the microswitch 32 and one end of the driving rod 341 far from the microswitch 32 through the two through holes, so that the transmission rod 342 drives the driving rod 341 to move.

In an embodiment of the present invention, as shown in fig. 2, the door 31 is provided with a position-limiting groove 3312 extending along the moving direction of the driving rod 341, the transmission member 342 is formed with a position-limiting post 3421, the position-limiting post 3421 abuts against one end edge of the position-limiting groove 3312 away from the micro switch 32 when the driving rod 341 is at the first position, and the position-limiting post 3421 abuts against the other end edge of the position-limiting groove 3312 when the driving rod 341 is at the second position. The movement of the stopper column 3421, which is formed on the transmission member 34, is restricted, thereby restricting the amount of travel of the transmission member 34 in the first direction.

As shown in fig. 3, the width of the position-limiting groove 3312 in the second direction is adapted to the diameter of the cross section of the position-limiting post 3421, so that the loss of the position-limiting groove 3312 and the position-limiting post 3421 due to collision can be reduced during the movement process, thereby prolonging the service life of the door 31 and improving the later maintenance cost.

Preferably, the corresponding positions of the position-limiting grooves 3312 and the position-limiting columns 3421 may be coated with a lubricating oil to reduce friction and friction consumption between the position-limiting grooves 3312 and the position-limiting columns 3421. In addition, rubber blocking sheets can be arranged at the two ends of the limiting groove 3312, so that hard collision between the limiting column 3412 and the limiting groove 3312 in the braking process is avoided, buffering is increased, and noise in the opening and closing process of the door body 31 of the cooking appliance 100 is reduced.

In an embodiment of the present invention, as shown in fig. 2, the micro switch 32 is disposed on the door 31, the hinge 33 includes a first arm 331 and a second arm 332 hinged to each other, the first arm 331 is fixed on the door 31, the second arm 332 is fixed on the cavity 1 of the cooking appliance 100, and the transmission rod 342 is connected to the second arm 332. The connection between the transmission rod 342 and the second support arm 332 converts the opening and closing motion of the door 31 into the motion of the driving rod 341 in the first direction, and the arrangement of the micro switch 32 and the driving rod 341 converts the motion of the driving rod 341 in the first direction into the motion of the upper contact 321 of the micro switch 32 in the second direction, thereby realizing the opening and power-off of the cooking appliance 100.

Specifically, as shown in fig. 2, the hinges 33 are respectively disposed on the left and right side surfaces of the door 31, the micro switch 32 may be disposed on one side surface of the door 31 where the hinge 33 is located, and the transmission member 342 may be disposed on the same side as the micro switch 32, so that the hinge 33 has a high quality requirement due to repeated opening and closing of the door 31 during the use of the cooking appliance 100. Alternatively, the hinge 33 may be a stainless steel hinge, which is corrosion resistant, oxidation resistant, and strong. The stainless steel hinge has a long service life, so that the service life of the door body 31 is prolonged, and the service life of the cooking appliance 100 is prolonged.

Further, as shown in fig. 3, the first arm 331 extends in the moving direction of the driving lever 341 and is formed in a U-shape in cross section, and the driving lever 341 and the transmission lever 342 are provided inside the first arm 331.

As shown in fig. 3, the transmission member 34 may be disposed inside the hinge 33, so as to achieve the purpose of transmission of the transmission member 34, and improve the space utilization rate of the left and right sides of the door 31, so that the door assembly 3 is more neat, and the cooking appliance 100 is more beautiful.

In one embodiment of the present invention, as shown in fig. 3, the transmission lever 342 is rotatably coupled to the second arm 332, and a rotational center line of the transmission lever 342 is spaced apart from a pivotal center line of the hinge 33. That is to say, the rotation center line of the transmission rod 342 and the pivot center line cannot be overlapped, and when the second arm 332 rotates around the pivot center line, the second arm 332 can drive one end of the transmission member 342 connected to the second arm 332 to rotate, so as to drive the other end of the transmission member 342 to move, thereby realizing the movement of the driving member 341. It can be understood that when the rotation center line of the transmission rod 342 is coincident with the pivot axis center line, and the second arm 332 rotates around the pivot axis center line, the transmission rod 342 does not move, and the second arm 332 cannot drive the transmission rod 342 to rotate and further drive the driving rod 341 to move.

The travel of the transmission rod 342 in the first direction is positively correlated with the distance between the rotation center line of the transmission rod 342 and the pivot axis center line of the hinge 33, that is, the greater the distance, the greater the travel of the transmission rod 342 in the first direction; the smaller the distance of the gap is, the smaller the travel amount of the driving rod 342 in the first direction is, so that the travel amount of the driving rod in the first direction can be increased by properly increasing the gap between the rotation center line of the driving rod and the pivot axis center line of the hinge 33, thereby increasing the travel amount of the driving rod 342 in the first direction, reducing the time for the touch part 343 to collide with and avoid the contact 321 of the micro switch 32, reducing the time interval between opening the door body 31 and power failure, and further reducing the possibility of electric shock and scalding of an operator.

The cooking appliance 100 according to the second aspect embodiment of the present invention includes: the cavity 1, the heating element and the door assembly 3 of the cooking appliance 100 according to the above-described first embodiment of the present invention.

Specifically, as shown in fig. 2, the cavity 1 has a cooking cavity 11, a heating member for heating the cooking cavity 11, and a door assembly for opening and closing the cooking cavity.

Other constructions of the cooking appliance 100, such as the housing and the power supply, etc., and operations thereof according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

According to the cooking appliance 100 of the embodiment of the utility model, the door body assembly 3 of the first embodiment is arranged, so that the overall performance of the cooking appliance 100 is improved.

A cooking appliance 100 according to the present invention will be described with reference to fig. 2.

Referring to fig. 2, the cooking appliance 100 of the embodiment of the present invention may include: cavity 1, heating member and door body subassembly 3.

Specifically, as shown in fig. 2, the cavity 1 has a cooking cavity 11 therein, the heating member is used for heating the cooking cavity 11, and the door assembly 3 is connected to the cavity 1 through a hinge 33.

Referring to fig. 2, the door body assembly 3 may include: door body 31, micro-gap switch 32, hinge 33 and driving medium 34. As shown in fig. 3, the hinge 33 may include a first arm 331 and a second arm 332. The first arm 331 is disposed on the door 31, the second arm 332 is disposed on the cavity 1, and the first arm 331 and the second arm 332 are rotatably connected.

As shown in fig. 3, the transmission member 34 may include a driving rod 341 and a transmission rod 342. One end of the transmission rod 342 is rotatably connected to the second arm 332, the other end of the transmission rod 342 is connected to the driving rod 341, and a trigger 343 is formed at the other end of the driving rod 341, the trigger 343 is disposed opposite to the contact 321 of the micro switch 32, and is configured to drive the contact 321 to move so as to trigger the driving switch 32.

As shown in fig. 3, the driving rod 341 is provided with a guide groove 3411, the guide groove 3411 extends in the first direction, a guide post 3311 is provided at a corresponding position of the hinge 33, and the guide groove 3411 and the guide post 3311 cooperate to restrict the movement of the driving rod 341 in the first direction.

As shown in fig. 2, in the closed state, the touching section 3411 of the touching portion 343 abuts against the contact 321 of the micro switch 32, and during the process of opening the door 31 of the cooking appliance 100, first the first arm 331 of the hinge 33 rotates around the pivot axis of the hinge 33, at this time, the second arm 332 rotates relative to the first arm 331, the second arm 332 drives the transmission rod 342 to move, the transmission rod 342 drives the driving rod 341 to move away from the micro switch 32 in the first direction, the touching section 3411 on the driving rod 341 moves away from the contact 321 in the first direction, after a certain distance of movement, the contact 321 is opposite to and in contact with the connection section 3432, at this time, the pressing force applied to the contact 321 on the micro switch 32 starts to decrease, and then a certain distance of movement is made, the avoiding section 3433 moves opposite to the contact 321 and is spaced from the contact 321, the contact 321 of the micro switch 32 completely pops up, and the micro switch 32 is in the open state, the heating member stops operating, and when the opening and closing of the hinge 33 reaches the maximum, the door opening process of the cooking appliance 100 is completed.

According to the door body assembly 3 of the cooking appliance 100, the microswitch 32 and the transmission piece 34 for driving the microswitch 32 are arranged on the door body 31 to realize the door opening and power off of the cooking appliance 100, so that personal injuries such as electric shock or scalding are avoided, and the safety of products is greatly improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A door body subassembly of cooking appliance, cooking appliance includes the cavity that has the cooking chamber and is used for heating the heating member of cooking chamber, its characterized in that, door body subassembly includes:

the door body is rotatably connected with the cavity through a hinge and is used for opening and closing the cooking cavity;

a micro switch electrically connected to the heating element;

the transmission piece is connected between the hinge and the microswitch;

when the door body closes the cooking cavity, the hinge drives the microswitch to be closed through the transmission part, and when the door body opens the cooking cavity, the hinge drives the microswitch to be disconnected through the transmission part.

2. The door assembly of the electric cooking appliance according to claim 1, wherein the transmission member includes a driving rod, one end of the driving rod is formed as a touch portion, the driving rod is movable between a first position and a second position, when the door body closes the cooking cavity, the hinge drives the driving rod to move to the first position, the touch portion touches a contact of the micro switch, when the door body opens the cooking cavity, the hinge drives the driving rod to move to the second position, and the touch portion is separated from the contact.

3. The door assembly of the electric cooking appliance according to claim 2, wherein the moving direction of the driving rod is a first direction, the direction perpendicular to the first direction is a second direction, the touch portion includes a touch section and an avoiding section connected in the first direction, the touch section and the avoiding section are arranged at intervals in the second direction, the touch section is opposite to and abutted against the contact in the second direction when the driving rod is at the first position, and the avoiding section is opposite to and spaced from the contact in the second direction when the driving rod is at the second position.

4. The door assembly of the electric cooking appliance according to claim 3, wherein the touch part further comprises: and one end of the connecting section is connected with the touch section, and the other end of the connecting section is far away from the contact and extends outwards in the direction towards the free end of the driving rod and is connected with the avoiding section.

5. The door assembly of an electric cooking appliance according to claim 2, wherein one of the door and the driving lever is provided with a guide groove extending in a moving direction of the driving lever and the other is provided with a guide post slidably fitted in the guide groove.

6. The door body assembly of the cooking appliance according to any one of claims 2 to 5, wherein the transmission member further comprises a transmission rod, one end of the transmission rod is rotatably connected with the hinge and the other end of the transmission rod is connected with the driving rod.

7. The door body assembly of the cooking appliance according to claim 5, wherein the door body is provided with a limiting groove extending along the moving direction of the driving rod, the transmission member is provided with a limiting column, the limiting column abuts against one end edge of the limiting groove when the driving rod is at the first position, and the limiting column abuts against the other end edge of the limiting groove when the driving rod is at the second position.

8. The door body assembly of the cooking appliance according to claim 6, wherein the micro switch is arranged on the door body, the hinge comprises a first support arm and a second support arm which are hinged to each other, the first support arm is fixed on the door body, the second support arm is fixed on a cavity of the cooking appliance, and the transmission rod is connected with the second support arm.

9. The door assembly of the cooking appliance according to claim 8, wherein the transmission lever is rotatably connected to the second arm, and a center line of rotation of the transmission lever is spaced apart from a pivot axis of the hinge.

10. An electric cooking appliance, characterized in that it comprises:

a cavity having a cooking cavity therein;

a heating member for heating the cooking chamber;

the door body assembly of the cooking appliance according to any one of claims 1 to 9.

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