CN106939734B

CN106939734B - Cooking appliance and door opening and closing method thereof

Info

Publication number: CN106939734B
Application number: CN201710146649.8A
Authority: CN
Inventors: 曾令; 赵鑫; 黄会祥; 王方璐
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: 2017-03-13
Filing date: 2017-03-13
Publication date: 2020-07-07
Anticipated expiration: 2037-03-13
Also published as: CN106939734A

Abstract

The invention discloses a cooking appliance and a door opening and closing method thereof, wherein the cooking appliance comprises: the magnetic part is arranged on one of the box body and the door body; the electromagnetic driving piece is arranged on the other one of the box body and the door body, the electromagnetic driving piece is opposite to the magnetic piece, and the electromagnetic driving piece is matched with the magnetic piece to drive the door body to be opened and closed. According to the cooking electric appliance provided by the embodiment of the invention, the door body can be opened and closed by changing the polarity of the electromagnetic driving piece, so that the door is opened and closed in an electronic mode, the automation of opening and closing the door is realized, and the cooking electric appliance is more intelligent.

Description

Cooking appliance and door opening and closing method thereof

Technical Field

The invention relates to the field of household appliances, in particular to a cooking appliance and a door opening and closing method thereof.

Background

Among the cooking appliance of correlation technique, the lockhole on the box is higher than the spring bolt on the door body, and two power need be overcome in the process of opening the door body: the first overcomes the pulling force of the door hook spring, and the second overcomes the resistance of the door hook climbing the slope of the interlocking bracket. Two forces need to be overcome during the door closing process: the first overcomes the pulling force of the door hook spring, and the second overcomes the resistance of the door hook climbing the slope of the interlocking bracket. However, due to the structural limitation of the cooking appliance, the door opening and closing force is large, the sound is large, and the user experience is poor.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, the present invention provides an electric cooking appliance, which is opened by electromagnetic driving.

Another aspect of the present invention is to provide a method for opening and closing a door of such a cooking appliance.

According to the cooking appliance provided by the embodiment of the invention, the cooking appliance comprises a box body and a door body, the door body is installed on the box body and used for opening and closing the box body, and the cooking appliance further comprises: the magnetic part is arranged on one of the box body and the door body; the electromagnetic driving piece is arranged on the other one of the box body and the door body, the electromagnetic driving piece is opposite to the magnetic piece, and the electromagnetic driving piece is matched with the magnetic piece to drive the door body to be opened and closed.

According to the cooking electric appliance provided by the embodiment of the invention, the door body can be opened and closed by changing the polarity of the electromagnetic driving piece, so that the door is opened and closed in an electronic mode, the automation of opening and closing the door is realized, and the cooking electric appliance is more intelligent.

In addition, the cooking appliance according to the above embodiment of the present invention may further have the following additional technical features:

according to an embodiment of the present invention, a door lock assembly is further disposed on the box body, a lock hole is disposed on a front surface of the box body, the door lock assembly is opposite to the lock hole, a lock tongue corresponding to the door lock assembly is disposed on the door body, and the door lock assembly includes: an interlock bracket; the lock core is movably arranged on the interlocking bracket between a door locking position and a releasing position, the lock core is suitable for being locked with the bolt at the door locking position, and the lock core is suitable for releasing the bolt at the releasing position.

Further, the lock cylinder comprises a lock cylinder body, a locking portion and a touch portion, the locking portion and the touch portion are connected with the lock cylinder body, the touch portion is arranged behind the locking portion at intervals, the locking portion and the lock hole are staggered in the front-back direction when the lock cylinder is located at the release position, the touch portion is opposite to the lock hole in the front-back direction, and at least one part of the locking portion is opposite to the lock hole in the front-back direction when the lock cylinder is located at the door locking position.

Advantageously, the door lock assembly further comprises: the damping piece is arranged on the interlocking support and connected with the lock cylinder to provide damping for the lock cylinder.

According to an embodiment of the invention, the cooking appliance further comprises: the door body is arranged on the box body, the micro switch is triggered when the box body is closed, and one or more micro switches are arranged on the box body.

According to one embodiment of the invention, at least one of the box body and the door body is provided with a distance sensor for detecting the relative position between the box body and the door body, and the distance sensor is in signal transmission with the electromagnetic driving piece.

According to an embodiment of the invention, the cooking appliance further comprises: and the door opening button is in signal transmission with the electromagnetic driving piece so that the electromagnetic driving piece and the electromagnet repel each other.

According to a second aspect of the present invention, a door opening and closing method for a cooking appliance is provided, wherein the cooking appliance is the aforementioned cooking appliance, the door opening and closing method includes: after the cooking appliance receives a door opening signal, the electromagnetic driving piece is in a state of mutual repulsion with the magnetic piece and is used for driving the door body to be opened; and after receiving a door closing signal, the cooking appliance enables the electromagnetic driving piece to be in a state of mutual attraction with the magnetic piece and is used for driving the door body to close.

According to one embodiment of the invention, a door opening button is arranged on the cooking appliance and used for generating the door opening signal; and/or in the door closing process, the door closing signal is generated when the distance between the door body and the box body is not more than a first preset value.

According to one embodiment of the invention, in the door opening process, the electromagnetic driving piece is powered off when the distance between the door body and the box body is not less than a second preset value.

Drawings

Fig. 1 is a partial schematic view of a cooking appliance according to an embodiment of the present invention.

Fig. 2 is a partial schematic view of a cooking appliance according to an embodiment of the present invention.

Fig. 3 is a schematic view of the cooking appliance of the embodiment of the present invention shown in fig. 2, wherein the key cylinder is located at the door locking position.

Fig. 4 is a schematic view of the cooking appliance of the embodiment of the present invention shown in fig. 2, wherein the key cylinder is located at the release position.

Fig. 5 is a schematic view of a door lock assembly of the cooking appliance of the embodiment of the present invention shown in fig. 2.

Fig. 6 is a schematic view of another example of the cooking appliance of the embodiment of the present invention shown in fig. 2.

Fig. 7 is a partial schematic view of a cooking appliance according to another embodiment of the present invention.

Fig. 8 is a schematic view of the cooking appliance of the embodiment of the present invention shown in fig. 7, wherein the key cylinder is located at the door locking position.

Fig. 9 is a schematic view of the cooking appliance of the embodiment of the present invention shown in fig. 7, wherein the key cylinder is located at the release position.

Fig. 10 is a schematic view of a door lock assembly of the cooking appliance of the embodiment of the present invention shown in fig. 2.

Reference numerals:

the cooking appliance comprises a cooking appliance 100, a box body 1, a door body 2, a magnetic part 3, an electromagnetic driving part 4, a door lock assembly 5, an interlocking bracket 51, a lock cylinder 52, a damping part 53, a lock cylinder body 521, a locking part 522, a touch part 523, a first cover plate 511, a second cover plate 512, a bolt 6, a microswitch 7 and a distance sensor 8.

Example 1: a guide groove 501, a first groove section 502, a second groove section 503, a guide direction F, a first slide block 524, and a second slide block 525.

Example 2: a fixed axis G, a limit groove 504 and a limit block 526.

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 invention and are not to be construed as limiting the invention.

Among the correlation technique, desktop microwave oven, embedded microwave oven, OTR, commercial stove open the door power of closing greatly in the furnace gate switch in-process, and switch door striking sound is big, and user experience is poor: the door opening force is about 2.7KG.F at present, and the door closing force is about 1.7 KG. The door hook and the interlocking bracket have large friction sound in the door opening and closing process.

The cooking appliance referred to in the present invention may be an oven, a microwave oven (a desktop type microwave oven, an embedded type microwave oven … …), or the like.

The cooking appliance 100 according to the embodiment of the first aspect of the present invention is described in detail below with reference to fig. 1 to 10.

Referring to fig. 1 and 2, according to the cooking appliance 100 of the embodiment of the present invention, the cooking appliance 100 includes a cabinet 1 and a door 2, the door 2 is mounted on the cabinet 1 for opening and closing the cabinet 1, and the cooking appliance 100 further includes a magnetic member 3 and an electromagnetic driving member 4.

Specifically, the magnetic member 3 is provided on one of the case 1 and the door 2, and the electromagnetic actuator 4 is provided on the other of the case 1 and the door 2. Alternatively, one of the box body 1 and the door body 2 is provided with the magnetic member 3, and the other of the box body 1 and the door body 2 is provided with the electromagnetic driving member 4. Wherein at least comprising:

a. the box body is provided with a magnetic part, and the door body is provided with an electromagnetic driving part;

b. the door body is provided with a magnetic part, and the box body is provided with an electromagnetic driving part;

c. the door body is provided with an electromagnetic driving part and a magnetic part, the box body is provided with the magnetic part and the electromagnetic driving part, the magnetic part on the door body corresponds to the electromagnetic driving part on the box body, and the electromagnetic driving part on the door body corresponds to the magnetic part on the box body.

d. In addition, the electromagnetic driving part can be arranged on both the box body and the door body, and the electromagnetic driving part on the door body is opposite to the electromagnetic driving part on the box body (that is, the magnetic part is in an electromagnetic driving structure).

The electromagnetic driving part 4 is opposite to the magnetic part 3, and the electromagnetic driving part 4 is matched with the magnetic part 3 to drive the door body 2 to open and close.

Specifically, the electromagnetic driving element 4 is opposite to the magnetic element 3, and the electromagnetic driving element 4 and the magnetic element 3 repel each other (or drive the door 2 to open) when the polarities of the electromagnetic driving element 4 and the magnetic element 3 are the same; when the polarity of the electromagnetic driving element 4 is opposite to that of the magnetic element 3, the electromagnetic driving element 4 and the magnetic element 3 attract each other (or the door body 2 is driven to close).

It will be understood by those skilled in the art that the polarity of the electromagnetic driver 4 and the magnetic member 3 refers to the polarity of the opposing portions of the electromagnetic driver 4 and the magnetic member 3.

According to the cooking appliance 100 provided by the embodiment of the invention, the door body 2 can be opened and closed by changing the polarity of the electromagnetic driving piece 4, so that the door is opened and closed in an electronic manner, the automation of opening and closing the door is realized, and the cooking appliance 100 is more intelligent.

Preferably, since the door 2 can be opened by the electromagnetic driving unit 4, the door 2 can be configured to have a structure without a handle, so that the appearance of the cooking appliance 100 is more attractive, and the door of the cooking appliance 100 can be opened and closed conveniently.

Certainly, whether the door body 2 is provided with the handle or not does not affect the opening and closing of the door body 2, and the door body 2 is provided with the handle, so that various manual and automatic door opening modes can be realized.

In addition, the invention can change the suction force of the electromagnetic driving piece 4 by adjusting the power of the electromagnetic driving piece 4, thereby changing the door opening and closing speed.

Furthermore, one end of the door body 2 is hinged with the box body 1, and the magnetic part 3 is arranged at the other end of the door body 2. That is to say, the one end of the door body 2 is articulated with the box 1, and the box 1 is opened and closed through rotatory mode to the door body 2, makes things convenient for opening and closing of the door body 2, and in addition, magnetic part 3 sets up in the other end of the door body 2, can conveniently come the switch door through electromagnetic drive spare 4.

Preferably, the electromagnetic driving element 4 and the magnetic element 3 can be arranged at other positions.

Of course, the door body 2 is arranged in a drawer type, and the door opening and closing process of the electromagnetic driving piece 4 is not influenced.

Referring to fig. 2 to 10, in some embodiments of the present invention, a door lock assembly 5 is further disposed on the box body 1, a lock hole (not shown in the figure) is disposed on a front surface of the box body 1, the door lock assembly 5 is opposite to the lock hole, a lock tongue 6 corresponding to the door lock assembly 5 is disposed on the door body 2, the lock hole on the front surface of the box body 1 is opposite to the lock tongue 6, wherein the lock tongue 6 is opposite to the lock hole, which means that the lock tongue 6 can penetrate into the lock hole when the door body 2 is.

Door lock assembly 5 includes an interlock bracket 51 and a lock cylinder 52. Specifically, lock cylinder 52 is disposed on interlock bracket 51, and lock cylinder 52 is movable between a door-locking position (e.g., the position of lock cylinder 52 shown in fig. 3 and 8) and a release position (e.g., the position of lock cylinder 52 shown in fig. 4 and 9). When the lock core 52 is located at the door locking position, the lock core 52 is suitable for being locked with the bolt 6, and the door body 2 of the cooking appliance 100 (such as a microwave oven) can be locked with the cabinet 1; when the lock cylinder 52 is located at the release position, the lock cylinder 52 is suitable for releasing the bolt 6, so that the door body 2 and the box body 1 are unlocked, and at the moment, the door body 2 can be opened.

In the using process, when the door body 2 is closed, the bolt 6 on the door body 2 passes through the lock hole, and the lock cylinder 52 moves to the door locking position, so that the lock between the lock cylinder 52 and the bolt 6 is realized; when the door body 2 is opened, the lock cylinder 52 is switched to the release position to release the bolt 6, and the bolt 6 is drawn out from the lock hole, so that the door body 2 is opened.

Further, as shown in fig. 3, 4 and 10, the lock cylinder 52 includes a lock cylinder body 521, a locking portion 522 and a triggering portion 523, the locking portion 522 and the triggering portion 523 are both connected to the lock cylinder body 521, and the triggering portion 523 is disposed at a distance behind the locking portion 522.

When the lock cylinder 52 is located at the release position, the locking portion 522 and the lock hole are staggered in the front-rear direction, and the touch portion 523 and the lock hole are opposite in the front-rear direction, that is, when the lock cylinder 52 is located at the release position, if the lock tongue 6 passes through the lock hole, the locking portion 522 in front of the touch portion 523 does not contact with the lock tongue 6, the lock tongue 6 can continue to move to push the touch portion 523, so that the touch portion 523 is pushed by the lock tongue 6 and the lock cylinder 52 moves to the door locking position.

When the lock cylinder 52 is located at the door locking position, at least a part of the locking portion 522 is opposite to the front and back of the lock hole, and the locking portion 522 opposite to the front and back of the lock hole is locked with the lock tongue 6, so that the locking of the door body 2 is realized, and in the opening process of the door body 2, because the locking portion 522 is opposite to the lock hole, the lock tongue 6 is inevitably driven to move when being pulled out of the lock hole, so that the lock cylinder 52 is driven to move to the release position. Thereby, the switching of the key cylinder 52 between the door-locking position and the release position is easily performed.

As shown in fig. 3-10, according to some embodiments of the present invention, the door lock assembly 5 further includes: a damping member 53, the damping member 53 being provided on the interlock bracket 51, and the damping member 53 being connected to the key cylinder 52 for damping the key cylinder 52. That is, the damping member 53 provides damping to the key cylinder 52 during the opening and closing of the door body 2, thereby reducing the moving speed of the key cylinder 52.

By arranging the damping piece 53, when the lock cylinder 52 moves from the release position to the door locking position, the damping piece 53 provides damping for the lock cylinder 52, so that the opening and closing of the door body 2 are delayed, and the generation of large noise in opening and closing the door or the over-quick opening of the door is avoided.

As shown in fig. 2 to 10, in some embodiments of the present invention, the cooking appliance 100 further includes: micro-gap switch 7, micro-gap switch 7 establish on box 1, and the door body 2 triggers micro-gap switch 7 when closing box 1, is equipped with one or more micro-gap switch 7 on the box 1, can detect the on-off state of the door body 2 through micro-gap switch 7 to can avoid appearing starting the culinary art process when the door body 2 does not close, or the culinary art process when avoiding the door body 2 accident to open continues. From this, through set up micro-gap switch 7 on box 1, be favorable to improving the accuracy that opens the door and lock the door and detect, improve the use reliability of lock subassembly 5.

In combination with the above-mentioned embodiments, the microswitch 7 is triggered when the lock cylinder 52 is located at the door locking position (refer to the position of the lock cylinder 52 in fig. 3 and 8), and the microswitch 7 is released when the lock cylinder 52 is located at the release position (refer to the position of the lock cylinder 52 in fig. 4 and 9), and one or at least two microswitches 7 are provided on the interlock bracket 51.

The microswitch 7 is triggered by the lock cylinder 52 at the door locking position, so that the position of the lock cylinder 52 can be detected through the microswitch 7, the door locking state is detected, and the safety control is realized.

In some embodiments of the present invention, at least one of the cabinet 1 and the door 2 is provided with a distance sensor 8 for detecting a relative position between the cabinet 1 and the door 2, and the distance sensor 8 is in signal transmission with the electromagnetic driving member 4. The relative position of the box body 1 and the door body 2 can be detected through the distance sensor 8, so that the state of the door body 2 is determined, and the electromagnetic driving part 4 is controlled to open and close the door body 2 in time.

For example, when the door body 2 is closed and the door body 2 is closed to a predetermined position, the electromagnetic driving part 4 may be controlled to be opened by the detection structure of the distance sensor 8, so that the electromagnetic driving part 4 drives the door body 2 to be closed; when the door body 2 is opened to a preset position, the electromagnetic driving part 4 can be controlled to be powered off through the detection result of the distance sensor 8, and therefore energy conservation of the electromagnetic driving part 4 is achieved.

In addition, in some embodiments of the present invention, the cooking appliance further includes a door opening button (not shown), which is in signal communication with the electromagnetic driving member 4 to make the electromagnetic driving member 4 repel the electromagnet. That is, when the door body 2 needs to be opened, only the door opening button needs to be pressed, so that the door opening process is realized.

The door opening button can be arranged on the cooking appliance or an external device, such as a remote controller.

Further, with reference to fig. 2 and 7, the box body 1 is provided with one or at least two door lock assemblies 5 arranged at intervals, and the door body 2 is provided with locking tongues 6 corresponding to the door lock assemblies 5 one to one. Through the cooperation of the latch tongue 6 and the corresponding door lock assembly 5, the cooking appliance 100 can be switched between the door lock position and the release position.

Wherein, through being equipped with a lock subassembly 5 or the interval arrangement at least two lock subassemblies 5 (for example two, three, four etc.) at the box 1 for can be according to the different sizes or the different models cooking apparatus 100 adaptability installation lock subassembly 5, this is favorable to realizing the commonality of lock subassembly 5.

For example, by providing a door lock assembly 5 on the cabinet 1, a door lock assembly 5 may be provided on the upper or lower portion of the cabinet 1. In addition, when at least two door lock assemblies 5 arranged at intervals are arranged on the box body 1, the door lock assemblies 5 can be in an integrated structure, so that the assembly is convenient and the control is easy.

In addition, referring to fig. 1, when the cooking appliance 100 is a microwave oven or a microwave oven, the cooking appliance 100 may further include a control box assembly, a frequency converter, a magnetron, and other components, so that food can be heated by microwave; in addition, the control box component is convenient for a user to select a corresponding cooking mode, and the operation of the user is convenient.

In a second aspect of the present invention, there is provided a method for opening and closing a door of a cooking appliance 100, where the cooking appliance 100 is the aforementioned cooking appliance 100, and the method for opening and closing a door includes:

after receiving the door opening signal, the cooking appliance 100 makes the electromagnetic driving part 4 in a state of mutual repulsion with the magnetic part 3, and is used for driving the door body 2 to open; after receiving the door closing signal, the cooking electrical appliance 100 makes the electromagnetic driving element 4 in a state of attracting the magnetic element 3 to drive the door 2 to close.

According to the method for opening and closing the door of the cooking appliance 100, after the cooking appliance 100 receives the door opening and closing signal, the electromagnetic driving element 4 is started, so that the cooking appliance 100 can be quickly opened and closed, the cooking appliance 100 is intelligentized and automatic, and the door opening and closing efficiency of the cooking appliance 100 is improved.

In some embodiments of the present invention, the cooking appliance 100 is provided with a door opening button for generating a door opening signal.

In addition, in the door closing process, a door closing signal is generated when the distance between the door body 2 and the box body 1 is not more than a first preset value.

In order to save energy, the electromagnetic driving part 4 is powered off when the distance between the door body 2 and the box body 1 is not less than a second preset value in the door opening process.

In addition, the present invention provides some cooking appliances 100 including any one of the embodiments, and the following describes the cooking appliances 100 and the using method according to the embodiment.

Example 1

As shown in fig. 2 to 6, the cooking appliance 100 of the embodiment of the present invention includes: a door lock assembly 5 and a bolt 6.

Specifically, the door lock assembly 5 is disposed on the box body 1, and a lock hole corresponding to the door lock assembly 5 is formed on a front surface of the box body 1, the door lock assembly 5 includes an interlocking bracket 51 and a lock cylinder 52, the interlocking bracket 51 has a guide groove 501 extending along a non-straight line, and the lock cylinder 52 slides along the guide groove 501 between a door locking position and a releasing position. The bolt 6 is arranged on the door body 2 and is opposite to the door lock component 5, and the bolt 6 is inserted into the lock hole when the door body 2 closes the box body 1. Lock cylinder 52 is adapted to lock with bolt 6 in the door locking position and lock cylinder 52 is adapted to release bolt 6 in the release position.

According to the cooking appliance 100 of the embodiment of the present invention, since the key cylinder 52 slides along the non-linearly extending guide groove 501, it is possible to smoothly switch between the door-locking position and the release position during the linear sliding of the key cylinder 52.

As shown in fig. 2 to 6, in one example, the guide groove 501 includes a first groove section 502 and a second groove section 503, the first groove section 502 extends in the front-rear direction, the second groove section 503 is connected to the front end of the first groove section 502, and the second groove section 503 extends in a guide direction F, which is an oblique direction with respect to the first groove section 502. That is, the second slot segment 503 is inclined with respect to the first slot segment 502.

In addition, the guiding direction F (extending direction of the second groove section 503) may be inclined in a horizontal direction, inclined upward or inclined downward with respect to the first groove section 502, or the like. Preferably, the angle between the guiding direction F and the horizontal direction may be between 0 ° and 45 °. The key cylinder 52 is slidable along the guide groove 501 to thereby effect switching between the door-lock position and the release position.

In fig. 3 and 4, the guiding direction is a forward and upward inclined extension, and in fig. 6, the guiding direction F is a leftward and forward inclined extension, that is, the guiding direction F is horizontal.

Furthermore, the lock cylinder body 521 is provided with a first slider 524 and a second slider 525 arranged in front of the first slider 524 at an interval, the first slider 524 and the second slider 525 both extend into the guide groove 501, and both the first slider 524 and the second slider 525 are slidable along the guide groove 501, when the lock cylinder 52 is located at the release position (as shown in fig. 4), the first slider 524 is located at the first groove section 502 and the second slider 525 is located at the second groove section 503, and when the lock cylinder 52 is located at the door locking position (as shown in fig. 3), both the first slider 524 and the second slider 525 are located at the first groove section 502.

Through the cooperation of the guide groove 501 and the first and

second sliders

524 and 525, the lock cylinder 52 can move between the door locking position and the releasing position, and specifically, during the movement of the lock cylinder 52, the lock cylinder 52 can not only move in the front-back direction, but also the lock cylinder 52 can rotate within a certain angle range (the guide groove 501 is a non-linear guide groove 501), so that at least a part of the lock cylinder body 521 can move in the up-down direction, and the lock cylinder can be locked or released with the corresponding bolt 6 (or other components) through the up-down movement. And because lock core 52 in this application can also slide along fore-and-aft direction, consequently, lock core 52 in this application provides the activity space of corresponding part along fore-and-aft direction to realize carrying out the purpose of locking the door body 2 and releasing the operation of opening the door.

The trigger 523, the first slider 524 and the locking part 522 cooperate to form a lever structure with the first slider 524 as a fulcrum. Thus, when the key cylinder 52 is shifted from the door-locking position to the release position, the key cylinder 52 can rotatably slide along the guide groove 501 about the first slider 524, so that the shifting of the door-lock assembly 5 between the door-locking position and the release position is easily performed.

In the process that the lock cylinder 52 slides towards the release position, when the second sliding block 525 slides to the second groove section 503, the trigger 523, the first sliding block 524 and the locking portion 522 cooperate to form a lever structure with the first sliding block 524 as a fulcrum, and the second groove section 503 and the first groove section 502 form a predetermined angle included angle, at this time, the lock cylinder 52 will rotate around the first sliding block 524, and by rotating the lock cylinder 52, the position of the lock cylinder 52 relative to the lock hole can be changed, so that the locking portion 522 moves to a position staggered from the lock hole, and thus the locking portion 522 can release the bolt 6.

In addition, when the lock cylinder 52 is in the release position, the locking portion 522 is staggered from the lock hole, and the trigger 523 is opposite to the lock hole, at this time, if the lock tongue 6 passes through the lock hole and contacts the trigger 523, the lock tongue 6 will drive the trigger 523 to move backward, so as to drive the lock cylinder 52 to slide towards the door locking position, and the process of sliding the lock cylinder 52 towards the door locking position is the reverse process of the process of sliding towards the release position, so that during the sliding process of the lock cylinder 52, the second slider 525 will slide along the second slot section 503, because of the included angle between the second slot section 503 and the first slot section 502, the lock cylinder 52 will rotate around the first slider 524, and during the rotation process of the lock cylinder 52, the locking portion 522 will be aligned with the lock hole, so that the locking portion 522 will be locked with the lock tongue 6, thereby realizing the locking of the door.

Preferably, the angle between the first slot segment 502 and the second slot segment 503 is in the range of 90 ° to 135 °. Therefore, the second sliding block 525 can be ensured to freely slide between the first groove section 502 and the second groove section 503, and meanwhile, when the lock cylinder 52 is located at the release position (as shown in fig. 4), the first sliding block 524 is located at the first groove section 502 and the second sliding block 525 is located at the second groove section 503, the lock cylinder 52 can be better maintained at the release position, and the stability of the door body 2 in the door opening state is improved.

Referring to fig. 5, according to some embodiments of the present invention, the interlocking bracket 51 includes a first cover 511 and a second cover 512, the first cover 511 and the second cover 512 are fastened, the lock cylinder 52 is disposed between the first cover 511 and the second cover 512, the first cover 511 and the second cover 512 are each provided with a guide groove 501, and the first slider 524 and the second slider 525 each include two corresponding to the two guide grooves 501. Through the cooperation of first apron 511 and second apron 512, can realize the quick installation of lock subassembly 5 to improve the installation effectiveness of lock subassembly 5. And first apron 511 and second apron 512 all set up guide slot 501 on, can realize the steady motion of lock core 52 to improve the stability of whole lock subassembly 5, avoid appearing the dead scheduling problem of card.

A method for opening and closing the door of the cooking appliance 100 according to the embodiment of the present invention is described below with reference to fig. 3 and 4.

As shown in fig. 3, when the cooking appliance 100 is in the door-closed state, the key cylinder 52 is located at the door-locking position, the latch 6 is locked with the key cylinder 52, the first slider 524 and the second slider 525 are both located in the first slot section 502, the locking portion 522 is opposite to the front and back of the key hole, and the micro switch 7 is triggered.

When the door body 2 of the cooking appliance 100 needs to be opened, the door opening button is triggered (or the door body 2 is pulled, the stress of the lock cylinder 52 reaches a preset pulling force), the electromagnetic driving piece 4 is electrified, the electromagnetic driving piece 4 and the magnetic piece 3 repel each other, the door body 2 is pushed to be opened under the action of magnetic force, the lock tongue 6 moves forward at the moment, as the locking part 522 is locked with the lock tongue 6 and the locking part 522 is opposite to the front and back of the lock hole, the lock tongue 6 moves forward to drive the lock cylinder 52 to move forward, the first sliding block 524 and the second sliding block 525 slide forward along the first groove section 502, when the lock cylinder 52 slides to a preset position, the second sliding block 525 enters the second sliding groove, at the moment, the lock cylinder 52 moves to a release position towards the release position, the lock cylinder 52 at the release position releases the lock tongue 6, the door body 2 is unlocked from the box body 1, under the action of the magnetic force or, while lock cylinder 52 is maintained in the release position.

When the door body 2 is opened to a predetermined position, the electromagnetic driving member 4 is de-energized to reduce power consumption.

When the door body 2 of the cooking appliance 100 needs to be closed, the door body 2 moves towards the door closing position, when the door body 2 moves to a predetermined position (or the lock cylinder 52 is pushed backwards to reach a predetermined value), a door closing signal is generated, the electromagnetic driving element 4 is energized, the electromagnetic driving element 4 and the magnetic element 3 are attracted, under the action of magnetic force, the door body 2 is pushed to close, at the moment, the lock tongue 6 moves backwards, because the locking part 522 is staggered with the lock hole in front and back, and the touch part 523 is opposite to the lock hole in front and back, the lock tongue 6 passing through the lock hole pushes the touch part 523 to move backwards, the second slide block 525 located in the second groove section 503 slides towards the first groove section 502, when the lock cylinder 52 slides to the predetermined position, the second slide block 525 slides into the first groove section 502, the locking part 522 is locked with the lock tongue 6, the first slide block 524 and the second slide block 525 slide backwards along the first groove section 502, at the moment, the lock cylinder, the door body 2 is locked with the cabinet 1, and the key cylinder 52 is maintained at the door-locking position.

After the door body 2 is closed, the micro switch 7 is triggered, the door closing is completed, and the electromagnetic driving piece 4 is powered off.

Example 2

As shown in fig. 7 to 10, the cooking appliance 100 of the embodiment of the present invention includes: a door lock assembly 5 and a bolt 6.

Specifically, the door lock assembly 5 is provided on the cabinet 1, and a lock hole corresponding to the door lock assembly 5 is provided on a front surface of the cabinet 1, and the door lock assembly 5 includes an interlock bracket 51 and a lock cylinder 52, and the lock cylinder 52 rotates about a fixed axis G between a door locking position and a releasing position. The bolt 6 is arranged on the door body 2 and is opposite to the door lock component 5, and the bolt 6 is inserted into the lock hole when the door body 2 closes the box body 1. Lock cylinder 52 is adapted to lock with bolt 6 in the door locking position and lock cylinder 52 is adapted to release bolt 6 in the release position.

According to the cooking appliance 100 of the embodiment of the present invention, since the key cylinder 52 rotates about the fixed axis G, it is possible to smoothly switch between the door-locking position and the release position during the rotation of the key cylinder 52.

Further, with reference to fig. 8 to 10, a limiting groove 504 is formed on the interlock bracket 51, a limiting block 526 is further connected to the main body of the lock core 52, the limiting block 526 extends into the limiting groove 504, and the limiting block 526 is slidable along the limiting groove 504. When the lock core 52 is in the door-locking position, the stopper 526 is located at one end of the stopper groove 504, and when the lock core 52 is in the releasing position, the stopper 526 is located at the other end of the stopper groove 504. Thus, it is facilitated to switch the key cylinder 52 between the door-locking position and the release position by rotating the key cylinder 52 about the fixed axis Ga, which is easy to operate.

Here, it is understood that one end of the restraint slot 504 and the other end of the restraint slot 504 refer to two relative positions at which the restraint block 526 slides in the restraint slot 504, respectively.

According to some embodiments of the present invention, the rotational angle of the lock core 52 between the release position and the door-locking position is no greater than 90 ° (less than or equal to 90 °). Thus, the rotation angle of the lock cylinder 52 between the release position and the door locking position is small, and the operation by a user is convenient; in addition, the structure of the door lock assembly 5 is more compact, and the occupied space is reduced.

The rotation angle of the lock cylinder 522 between the release position and the door locking position may be 30 °, 45 °, 60 °, 75 °, 90 °, or the like.

A method for opening and closing a door of the cooking appliance 100 according to the embodiment of the present invention will be described with reference to the accompanying drawings.

When the cooking appliance 100 is in a door-closed state, the key cylinder 52 is located at a door-locking position, the latch 6 is locked with the key cylinder 52, the locking portion 522 is opposite to the front and the back of the key hole, and the micro switch 7 is triggered.

When the door body 2 of the cooking appliance 100 needs to be opened, the door opening button is triggered (or the door body 2 is pulled, the stress of the lock cylinder 52 reaches a preset pulling force), the electromagnetic driving piece 4 generates a door opening signal, the electromagnetic driving piece 4 is electrified, the electromagnetic driving piece 4 and the magnetic piece 3 repel each other, the door body 2 is pushed to be opened under the action of magnetic force, the lock tongue 6 moves forwards, the lock tongue 6 is locked with the lock tongue 6, the lock tongue 6 moves forwards and is opposite to the lock hole, the lock cylinder 52 is driven to rotate towards the release position by the forward movement of the lock tongue 6, the lock cylinder 52 at the release position releases the lock tongue 6 when the lock cylinder 52 rotates towards the release position to reach the release position, the door body 2 is separated from the box body 1, the electromagnetic driving piece 4 continues to drive the door body 2 to be opened under the action.

When the door body 2 of the cooking appliance 100 needs to be closed, the door body 2 moves towards the door closing position, when the door body 2 moves to a preset position (or the lock cylinder 52 is pushed backwards to reach a preset value), a door closing signal is generated, the electromagnetic driving piece 4 is powered on, the electromagnetic driving piece 4 and the magnetic piece 3 are attracted, the door body 2 is pushed to be closed under the action of magnetic force, at the moment, the lock tongue 6 moves backwards, because the locking part 522 is staggered with the lock hole in the front-back direction, and the touch part 523 is opposite to the lock hole in the front-back direction, the lock tongue 6 penetrating through the lock hole pushes the touch part 523 to move backwards, the lock cylinder 52 moves towards the door locking position to the door locking position, the door body 2 is locked with the box body 1.

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 invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited 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; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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 present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 invention. 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.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a cooking appliance, cooking appliance includes box and door body, the door body is installed be used for opening and closing on the box, its characterized in that, cooking appliance still includes:

the magnetic part is arranged on one of the box body and the door body;

the electromagnetic driving piece is arranged on the other one of the box body and the door body, the electromagnetic driving piece is opposite to the magnetic piece, the electromagnetic driving piece is matched with the magnetic piece to drive the door body to be opened and closed,

the door lock comprises a box body, and is characterized in that a door lock assembly is further arranged on the box body, a lock hole is formed in the front surface of the box body, the door lock assembly is opposite to the lock hole, a lock tongue corresponding to the door lock assembly is arranged on the door body, the door lock assembly comprises an interlocking support, a lock cylinder and a damping piece, the lock cylinder is movably arranged on the interlocking support between a door locking position and a releasing position, the lock cylinder is suitable for being locked with the lock tongue at the door locking position, the lock cylinder is suitable for releasing the lock tongue at the releasing position, the damping piece is arranged on the interlocking support, and the damping piece is connected with the lock cylinder and is used for damping the lock cylinder,

the lock cylinder comprises a lock cylinder body, a locking part and a touch part, the locking part and the touch part are connected with the lock cylinder body, the touch part is arranged behind the locking part at intervals, the locking part and the lock hole are staggered in the front-back direction when the lock cylinder is located at the release position, the touch part is opposite to the lock hole in the front-back direction, and at least one part of the locking part is opposite to the lock hole in the front-back direction when the lock cylinder is located at the door locking position.

2. The cooking appliance according to claim 1, further comprising:

the door body is arranged on the box body, the micro switch is triggered when the box body is closed, and one or more micro switches are arranged on the box body.

3. The cooking appliance according to any one of claims 1-2, wherein at least one of the box body and the door body is provided with a distance sensor for detecting a relative position between the box body and the door body, and the distance sensor is in signal transmission with the electromagnetic driving member.

4. The cooking appliance according to any of the claims 1-2, further comprising:

and the door opening button is in signal transmission with the electromagnetic driving piece so that the electromagnetic driving piece and the electromagnet repel each other.

5. A method for opening and closing a door of a cooking appliance according to any one of claims 1-4, wherein the method comprises the following steps:

after the cooking appliance receives a door opening signal, the electromagnetic driving piece is in a state of mutual repulsion with the magnetic piece and is used for driving the door body to be opened;

and after receiving a door closing signal, the cooking appliance enables the electromagnetic driving piece to be in a state of mutual attraction with the magnetic piece and is used for driving the door body to close.

6. The door opening and closing method of a cooking appliance according to claim 5,

the cooking appliance is provided with a door opening button, and the door opening button is used for generating the door opening signal; and/or

In the door closing process, the door closing signal is generated when the distance between the door body and the box body is not more than a first preset value.

7. The door opening and closing method of the electric cooking appliance according to claim 5, wherein the electromagnetic driving part is powered off when the distance between the door body and the box body is not less than a second predetermined value in the door opening process.