CN113932259A

CN113932259A - Microwave heating device

Info

Publication number: CN113932259A
Application number: CN202010605337.0A
Authority: CN
Inventors: 胡广川
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: 2020-06-29
Filing date: 2020-06-29
Publication date: 2022-01-14

Abstract

The invention discloses a microwave heating device. The microwave heating device comprises a cavity, a door body and a detection assembly. The cavity is provided with a heating chamber; the door body is rotationally arranged on the cavity and is used for closing and opening the heating cavity; the detection assembly comprises a first sensing element and a first matching element, one of the first sensing element and the first matching element is arranged in the cavity, the other one of the first sensing element and the first matching element is arranged in the door body, the first sensing element generates a first signal that the door body closes the heating chamber under the condition that the first sensing element is close to the first matching element, and the first sensing element generates a second signal that the door body opens the heating chamber under the condition that the first sensing element is far away from the first matching element. Therefore, an interlocking device with a complex structure can be avoided, the cost is reduced, and the appearance integrity of the microwave heating device is ensured.

Description

Microwave heating device

Technical Field

The invention relates to the field of household appliances, in particular to a microwave heating device.

Background

A microwave oven is an electric appliance that heats and defrosts food using microwaves. In order to ensure the safe use of the microwave oven, the microwave oven is provided with an interlocking device which is used for determining whether the oven door of the microwave oven is normally closed or not, thereby preventing the microwave oven from being started under the condition that the oven door is not closed to generate microwave leakage and harm the health of human bodies. However, the interlocking device has a complicated structure, and a through hole needs to be formed in the body of the microwave oven, which affects the appearance integrity of the microwave oven.

Disclosure of Invention

The embodiment of the invention provides a microwave heating device.

The microwave heating device comprises a cavity, a door body and a detection assembly. The cavity is provided with a heating chamber; the door body is rotationally arranged on the cavity and is used for closing and opening the heating cavity; the detection assembly comprises a first sensing element and a first matching element, one of the first sensing element and the first matching element is arranged in the cavity, the other one of the first sensing element and the first matching element is arranged in the door body, the first sensing element generates a first signal that the door body closes the heating chamber under the condition that the first sensing element is close to the first matching element, and the first sensing element generates a second signal that the door body opens the heating chamber under the condition that the first sensing element is far away from the first matching element.

In the microwave heating device of this application embodiment, one setting in first sensing element and the first cooperation component is in the cavity, and another setting is internal at the door to first sensing element and the cooperation of first cooperation component can detect the closing and the open mode of a body, thereby can avoid adopting the interlock that the structure is complicated, has reduced microwave heating device's cost, and need not to trompil on the cavity, has guaranteed microwave heating device's outward appearance integrality.

In some embodiments, the number of the first sensing elements and the number of the first matching elements are both multiple, one first sensing element is disposed corresponding to one first matching element, at least one first sensing element is disposed in one of the cavity and the door body, and the corresponding first matching element is disposed in the other of the cavity and the door body.

In some embodiments, the number of the first sensing elements and the number of the first matching elements are two, two first sensing elements are arranged in the cavity at intervals, and two first matching elements are arranged on the door body at intervals.

In some embodiments, the first sensing elements are spaced apart from each other in a direction parallel to the rotation axis of the door body.

In some embodiments, the door body includes a first end portion and a second end portion opposite to the first end portion, the door body is rotatably disposed on the cavity through the first end portion, one of the first sensing element and the first matching element is disposed in the second end portion, and the other one of the first sensing element and the first matching element is disposed in the cavity, and the first sensing element and the first matching element are aligned with each other when the door body closes the heating chamber.

In some embodiments, the first inductive element comprises a magnetically attractive switch and the first mating member comprises a magnetic member.

In some embodiments, the microwave heating apparatus comprises a support secured to the cavity, one of the first inductive element and the first mating element being secured to the support.

In some embodiments, the bracket includes a base plate and a mounting bracket disposed on the base plate, the base plate is fixed on the cavity, and one of the first sensing element and the first matching element is clamped on the mounting bracket.

In some embodiments, the microwave heating device includes a second sensing element and a second matching element, one of the second sensing element and the second matching element is disposed in the cavity, and the other is disposed in the door body, and the second sensing element and the second matching element cooperate to control the microwave heating device to stop working when the door body is opened.

In some embodiments, the second inductive element comprises a magnetically attractive switch and the second mating element comprises a magnetic member.

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

Drawings

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

fig. 1 is a schematic perspective view of a microwave heating apparatus according to an embodiment of the present invention;

FIG. 2 is an internal structural view of a microwave heating apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of a partial structure of a microwave heating apparatus according to an embodiment of the present invention;

FIG. 4 is an exploded schematic view of a detection assembly according to an embodiment of the present invention.

Description of main characteristic symbols:

a microwave heating device 400;

the detection device comprises a detection assembly 100, a first sensing element 110, a first matching element 120, a second sensing element 130, a second matching element 140, a door body 200, a first end portion 210, a second end portion 220, a handle 221, a cavity 300, a placing position 301, a heating chamber 320, a support 340, an accommodating space 341, a substrate 342, a mounting frame 344, a mounting groove 345 and a circuit board 360.

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 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; 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.

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, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 3, a microwave heating apparatus 400 according to an embodiment of the present invention includes a cavity 300, a door 200, and a detection assembly 100. The chamber 300 has a heating chamber 320; the door 200 is rotatably disposed in the cavity 300, and the door 200 is used to close and open the heating chamber 320.

The detection assembly 100 includes a first sensing element 110 and a first matching element 120, one of the first sensing element 110 and the first matching element 120 is disposed in the cavity 300, and the other is disposed in the door body 200. When the first sensing element 110 is close to the first matching element 120, the first sensing element 110 generates a first signal that the door 200 closes the heating chamber 320, and when the first sensing element 110 is far from the first matching element 120, the first sensing element 110 generates a second signal that the door 200 opens the heating chamber 320.

In the microwave heating device 400 of the embodiment of the present application, one of the first sensing element 110 and the first matching element 120 is disposed in the cavity 300, and the other is disposed in the door 200, and the first sensing element 110 and the first matching element 120 can detect the closing and opening states of the door 200, so that an interlocking device with a complex structure can be avoided, the cost of the microwave heating device 400 is reduced, and no hole needs to be formed in the cavity 300, thereby ensuring the appearance integrity of the microwave heating device 400.

Specifically, the door 200 and the cavity 300 cooperate to jointly seal the heating chamber 320, so that the heating chamber 320 forms a sealed space when the microwave heating device 400 operates. Since the door 200 is rotatably disposed on the cavity 300, when a user uses the door, the door 200 can be rotated along one side to open, so that the front surface of the heating chamber 320 in the cavity 300 is exposed, and a front surface open space connected to the heating chamber 320 is formed.

The user takes the food to the heating chamber 320 through the front open space and takes the food out of the heating chamber 320 through the front open space after the operation of the microwave heating apparatus 400 is completed. The detection assembly 100 is used for ensuring the tightness of the heating chamber 320, the detection assembly 100 comprises a first sensing element 110 and a first matching element 120, and the first sensing element 110 and the first matching element 120 are correspondingly matched, so that the safety of the microwave heating device 400 is improved.

In one example, the first sensing element 110 is disposed in the cavity 300, and the first mating element 120 is disposed in the door body 200. When a user closes the door body 200, the door body 200 is rotationally close to the cavity 300, at this time, the first sensing element 110 inside is close to the first matching element 120, and the first sensing element 110 generates a first signal.

The cavity 300 may include a circuit board 360, the circuit board 360 and the first sensing element 110 may be connected by a flexible flat cable, and the circuit board 360 may recognize a first signal, which is set as a signal that the door 200 closes the heating chamber 320, for example, the first signal is a high level signal.

When a user opens the door body 200, the door body 200 is rotationally far away from the cavity 300, at this time, the first sensing element 110 and the first matching element 120 inside are far away from each other, and the first sensing element 110 generates a second signal. The circuit board 360 recognizes the second signal so that the circuit board 360 can effectively detect the sealing of the heating chamber 320. The second signal is set as a signal that the door 200 opens the heating chamber 320, and is, for example, a low level signal.

In addition, in some embodiments, the positions of the first sensing element 110 and the first matching element 120 may be interchanged, or the first matching element 120 is disposed in the cavity 300, and the first sensing element 110 is disposed inside the door body 200. The signal generated by the first sensing element 110 is connected to the circuit board 360 through a flexible flat cable disposed at the connection between the door 200 and the cavity 300, so as to transmit and receive the signal.

The two sides of the door body 200 and the outer side surface of the cavity 300 in the embodiment of the invention can be made of glass, metal or plastic, and because no interlocking device with a complex structure is adopted, the two sides of the whole door body 200 and the outer side surface of the cavity 300 are flat and smooth, and are beneficial to placement and cleaning. The two sides of the door body 200 and the outer side surface of the cavity 300 can be designed into waterproof and clean-proof structures, so that corner thin seams which are difficult to clean by the interlocking device at ordinary times are avoided, and the cleaning efficiency is greatly improved.

Referring to fig. 1 to 2, in some embodiments, the number of the first sensing elements 110 and the number of the first matching elements 120 are multiple, one first sensing element 110 is disposed corresponding to one first matching element 120, at least one first sensing element 110 is disposed in one of the cavity 300 and the door body 200, and the corresponding first matching element 120 is disposed in the other of the cavity 300 and the door body 200.

Therefore, the plurality of first sensing elements 110 are matched with one first matching element 120 correspondingly, the problem that the whole microwave heating device 400 cannot work normally due to the fact that a single group of first sensing elements 110 and the first matching elements 120 are invalid is avoided, the detection accuracy is improved, and the reliability of the whole microwave heating device is guaranteed.

Specifically, for example, two first sensing elements 110 are installed in the cavity 300, and two corresponding first matching elements 120 are installed in the door body 200, and the two first sensing elements 110 may form two switches, which are a primary door lock switch and a secondary door lock switch. The two switches are not influenced by each other, and the monitoring work is completed independently.

For example, when the door 200 is closed, the first matching element 120 is close to the first sensing element 110, so that the primary door lock switch and the secondary door lock switch are both closed, and the microwave heating device 400 enters a preparation working state; when the door 200 is opened, the first matching element 120 is far away from the first sensing element 110, so that the primary door lock switch and the secondary door lock switch are turned off, and the microwave heating device 400 stops working.

In some embodiments, two first matching elements 120 may be installed in the cavity 300, and two first sensing elements 110 may be installed in the door body 200, where one first sensing element corresponds to one first matching element.

In some embodiments, one first sensing element 110 and one first matching element 120 may be installed in the cavity 300, one first matching element 120 and one first sensing element 110 may be installed in the door body 200, one first sensing element 110 of the cavity 300 corresponds to the first matching element 120 of the door body 200, and the first matching element 120 of the cavity 300 corresponds to the first sensing element 110 of the door body 200.

Referring to fig. 2 to 4, in some embodiments, the number of the first sensing elements 110 and the number of the first matching elements 120 are two, the two first sensing elements 110 are disposed in the cavity 300 at intervals, and the two first matching elements 120 are disposed on the door body 200 at intervals.

In this way, the cost can be reduced while ensuring the operation stability by using the two first sensing elements 110 and the first fitting element 120.

Specifically, two first sensing elements 110 are arranged in the cavity 300, the two first sensing elements 110 are arranged at intervals, the two first matching elements 120 are arranged on the door body 200 at intervals, and the two first sensing elements 110 and the two first matching elements 120 are correspondingly combined.

For example, when the door body 200 is closed, the first matching element 120 disposed on the door body 200 is close to the first sensing element 110, and the first sensing element 110 generates a first signal, which is set as a signal that the door body 200 closes the heating chamber 320. When the door body 200 is opened, the first matching element 120 disposed on the door body 200 is far away from the first sensing element 110, the first sensing element 110 generates a second signal, and the second signal is set as a signal for the door body 200 to open the heating chamber 320.

Referring to fig. 1 to 2, in some embodiments, the first sensing elements 110 are disposed at intervals along a direction parallel to a rotation axis of the door body 200.

Thus, the plurality of first sensing elements 110 and the first matching element 120 are matched synchronously, thereby avoiding damage to the working elements caused by possible asynchronous operation and increasing the reliability of the working elements.

Specifically, the door 200 is rotatably disposed on the cavity 300, and when the door 200 is operated, the door 200 is pulled along one end, and the door 200 rotates along the other end. The door body 200 can rotate along an axis perpendicular to the ground, and at this time, the plurality of first sensing elements 110 are arranged at intervals along a direction parallel to the rotation axis of the door body 200, so that the plurality of first sensing elements 110 can reach the cavity 300 at the same time. The plurality of first matching elements 120 are arranged at intervals in the cavity 300 along a direction parallel to the rotation axis of the door body 200, the plurality of first matching elements 120 are arranged at positions corresponding to the first sensing elements 110, and the plurality of first sensing elements 110 simultaneously reach the cavity 300 and are correspondingly combined with the first sensing elements 110.

In the embodiment of the present application, the extending direction of the rotation axis of the door body 200 may be a horizontal direction or a vertical direction.

Referring to fig. 1 to 2, in some embodiments, the door body 200 includes a first end portion 210 and a second end portion 220 opposite to the first end portion 210, the door body 200 is rotatably disposed on the cavity 300 through the first end portion 210, one of the first sensing element 110 and the first matching element 120 is disposed in the second end portion 220, and the other is disposed in the cavity 300, and the first sensing element 110 and the first matching element 120 are aligned when the door body 200 closes the heating chamber 320.

When the door 200 closes the heating chamber 320, the distance between the second end 220 and the cavity 300 is the largest, and microwaves in the heating chamber 320 easily leak from the gap between the second end 220 and the cavity 300. Because the first sensing element 110 is disposed at the second end 220, the first sensing element 110 can detect whether the door 200 is completely closed, or the first sensing element 110 can detect whether a gap exists between the second end 220 and the cavity 300, so that accuracy of detecting the door 200 by the first sensing element 110 is improved, and microwave leakage is prevented.

Specifically, the outer surface of the cavity 300 includes a placing position 301, the second end portion 220 corresponds to the placing position 301, and the second end portion 220 is attached to the placing position 301 when the door body 200 is closed. A first inductive element 110 is arranged at the second end 220 and a first mating element 120 is arranged in alignment with the inner surface at the corresponding placement position 301.

The handle 221 may be included outside the second end portion 220, and when the user opens the door body 200, the user pulls the handle 221, so that the door body 200 rotates along the first end portion 210, and the second end portion 220 is far away from the placing position 301. Meanwhile, the first sensing element 110 disposed in the second end portion 220 and the first matching element 120 are far away from each other, and the first sensing element 110 generates a second signal.

When the user closes the door body 200, the user pushes the handle 221, so that the door body 200 rotates along the first end portion 210, and the second end portion 220 is far close to the placing position 301. Meanwhile, the first sensing element 110 and the first matching element 120 arranged in the second end portion 220 are close to each other, finally, the second end portion 220 is completely attached to the placing position 301, the door body 200 is matched with the cavity 300, so that the heating chamber 320 forms a closed space, the first sensing element 110 generates a first signal, and the detection is accurate.

Referring to fig. 1 to 4, in some embodiments, the first sensing element 110 includes a magnetic switch, and the first engaging element 120 includes a magnetic element.

So, magnetism is inhaled the detection accuracy of switch and is higher to cost reduction can guarantee like this that microwave heating device reduces microwave heating device's cost when normally working.

It should be noted that, in the embodiment of the present application, the magnetic switch is an electrical component, and two iron elastic reed electric plates are installed in the magnetic switch and are filled with inert gas. In the case of no magnetic action, the two spring tongues are separate. When the magnetic part is close to the magnetic switch, under the action of magnetic force lines of the magnetic field, the two elastic reeds are magnetized to mutually attract and contact, and the elastic reeds are attracted together, so that the circuits connected with the nodes are communicated. After the external magnetic force disappears, the two elastic reeds are separated due to the elasticity of the two elastic reeds, and the circuit is disconnected, so that the effect of switching is achieved.

Specifically, the magnetic member may be a permanent magnet, and the material may be, but is not limited to, an aluminum-nickel-cobalt permanent magnet alloy, an iron-chromium-cobalt permanent magnet alloy, a permanent magnetic ferrite, a rare earth permanent magnet material, a composite permanent magnet material, and the like.

In some embodiments, the magnetic member may comprise an electromagnet. In addition, other types of sensors may be used for the first sensing element 110, including but not limited to using hall sensors, infrared proximity sensors, and the like. In some embodiments, the sensor can be used in combination with increasing the stability of signal transmission.

Referring to fig. 1 to 4, in some embodiments, the microwave heating apparatus 400 includes a bracket 340 fixed on the cavity 300, and one of the first sensing element 110 and the first matching element 120 is fixed on the bracket 340.

In this way, the bracket 340 facilitates the assembly and disassembly of the plurality of first inductive elements 110 and the first mating elements 120.

In one example, a bracket 340 may be installed in the chamber 300, the bracket 340 may have an elongated shape, and the bracket 340 may be vertically placed. Two first sensing elements 110 are mounted on the bracket 340 at intervals, and two first matching elements 120 are arranged at positions corresponding to the second end 220 of the door body 200.

In another example, the first engaging elements 120 are mounted on the brackets 340 at intervals, and the first sensing element 110 is disposed at a position corresponding to the second end 220 of the door body 200, so that the same effect can be achieved.

Referring to fig. 2 to 4, in some embodiments, the bracket 340 includes a base plate 342 and a mounting bracket 344 disposed on the base plate 342, the base plate 342 is fixed on the chamber 300, and one of the first sensing element 110 and the first matching element 120 is clamped on the mounting bracket 344.

In this way, the bracket 340 may be mounted on the chamber 300 through the substrate 342, and the first sensing element 110 and/or the first matching element 120 may be mounted on the mounting bracket 344, so that the first sensing element 110 and/or the first matching element 120 may be more conveniently fixed on the chamber 300.

Specifically, an accommodating space 341 is formed on the inner surface of the placing position 301 of the cavity 300, and the bracket 340 is integrally installed in the accommodating space 341. The bracket 340 includes a base plate 342, the base plate 342 being fixed to the inner surface of the placement position 301. The bracket 340 includes a mounting bracket 344 disposed on the base plate 342. in some embodiments, the mounting bracket 344 is removable from the base plate 342.

A plurality of mounting grooves 345 are formed in the mounting frame 344, the first sensing element 110 is clamped in the mounting grooves 345 of the mounting frame 344, and the first sensing element 110 can be disassembled from the mounting frame 344, so that replacement is convenient. In some embodiments, in the case that the first sensing element 110 is more easily damaged, the first sensing element 110 is clamped on the mounting groove 345 of the mounting bracket 344, so that the first sensing element 110 is more easily detached from the mounting bracket 344, and is convenient to replace.

Referring to fig. 2 to 4, in some embodiments, the microwave heating apparatus 400 includes a second sensing element 130 and a second matching element 140, one of the second sensing element 130 and the second matching element 140 is disposed in the cavity 300, and the other is disposed in the door 200, and the second sensing element 130 and the second matching element 140 cooperate to control the microwave heating apparatus 400 to stop working when the door 200 is opened.

Therefore, misoperation of a user is effectively avoided, and safety of the product is improved.

Specifically, the detection assembly 100 includes the second sensing element 130 and the second matching element 140, except for the first sensing element 110 and the first matching element 120, and the second sensing element 130 and the second matching element 140 are correspondingly matched to operate independently, so that the safety of the microwave heating device 400 is improved. The second sensing element 130 is installed on the bracket 340 of the cavity 100, and the second matching element 140 is installed at a corresponding position of the door body 200.

When a user closes the door body 200, the door body 200 is rotationally close to the cavity 300, the second sensing element 130 and the second matching element 140 inside the door body are close to each other, the second sensing element 130 generates a third signal, the third signal can be transmitted to the circuit board 360 through a flexible flat cable to identify the third signal, and the third signal can be set as a signal for closing the heating cavity 320 by the door body 200.

When the user opens the door 200, the door 200 is rotationally far away from the cavity 300, at this time, the second sensing element 130 and the second matching element 140 inside are far away from each other, and the second sensing element 130 generates a fourth signal. The circuit board 360 recognizes a fourth signal, which is set as a signal that the door 200 opens the heating chamber 320.

In addition, in some embodiments, the positions of the second sensing element 130 and the second matching element 140 may be interchanged, the second matching element 140 is disposed in the cavity 300, and the second sensing element 130 is disposed inside the door body 200. The signal generated by the second sensing element 130 is connected to the circuit board 360 through the flexible flat cable disposed at the connection between the door 200 and the cavity 300, so as to transmit and receive the signal.

Specifically, for example, two first sensing elements 110 and one second sensing element 130 are installed in the cavity 300, and two corresponding first matching elements 120 and one second matching element 140 are installed in the door body 200. The two first inductive elements 110 may form two switches, a primary door lock switch and a secondary door lock switch, respectively. The second inductive element 130 forms a monitoring switch. The three switches are not affected with each other, and the monitoring work is completed independently.

In some embodiments, two first matching elements 120 and one second matching element 140 may be installed in the cavity 300, and two corresponding first sensing elements 110 and one second sensing element 130 may be installed in the door body 200. The two first inductive elements 110 may form two switches, a primary door lock switch and a secondary door lock switch, respectively. The second inductive element 130 forms a monitoring switch. The three switches are not affected with each other, and the monitoring work is completed independently.

In some embodiments, two first sensing elements 110 and one first matching element 120 may be installed in the cavity 300, and two corresponding first matching elements 120 and one first sensing element 110 may be installed in the door body 200. Two first sensing elements 110 in the cavity 300 form a primary door lock switch and a secondary door lock switch, and one first sensing element 110 in the door body 200 forms a monitoring switch. The three switches are not affected with each other, and the monitoring work is completed independently.

In some embodiments, one first sensing element 110 and two first matching elements 120 may be installed in the cavity 300, and a corresponding one first matching element 120 and two first sensing elements 110 may be installed in the door body 200. One first sensing element 110 in the cavity 300 forms a monitoring switch, and two first sensing elements 110 in the door body 200 form a primary door lock switch and a secondary door lock switch. The three switches are not affected with each other, and the monitoring work is completed independently.

In addition, the microswitch can be used for replacing one or two groups of door lock switches, and is linked with the monitoring switch to carry out detection together. The various switch designs are beneficial to the stability of the microwave heating device 400.

Referring to fig. 4, in some embodiments, the second sensing element 130 includes a magnetic switch, and the second matching element 140 includes a magnetic member.

Therefore, the magnetic switch is consistent with the first induction element 110 and the first matching element 120, the detection accuracy of the magnetic switch is high, the cost is reduced, and the cost of the microwave heating device is reduced while the normal work of the microwave heating device is ensured.

Specifically, the second sensing element 130 includes a magnetic switch, and the second mating element 140 includes a magnetic member. The magnetic attraction switch is matched with the magnetic part for use, when the door body 200 is closed, the magnetic part is close to the magnetic attraction switch, the magnetic attraction switch is triggered to be switched off, a third signal is generated, and the third signal is transmitted to the circuit board 360. The circuit board 360 recognizes a third signal, which is set as a signal that the door 200 closes the heating chamber 320. When the door 200 is opened, the magnetic member is away from the magnetic switch, and the magnetic switch is triggered to be closed to generate a fourth signal, and the fourth signal is transmitted to the circuit board 360. The circuit board 360 recognizes a fourth signal, which is set as a signal that the door 200 opens the heating chamber 320.

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. A microwave heating apparatus, comprising:

a chamber having a heating chamber;

the door body is rotatably arranged in the cavity and used for closing and opening the heating cavity; and

the detection assembly comprises a first sensing element and a first matching element, one of the first sensing element and the first matching element is arranged in the cavity, the other one of the first sensing element and the first matching element is arranged in the door body, the first sensing element generates a first signal that the door body closes the heating chamber under the condition that the first sensing element is close to the first matching element, and the first sensing element generates a second signal that the door body opens the heating chamber under the condition that the first sensing element is far away from the first matching element.

2. A microwave heating device according to claim 1, wherein the number of the first induction elements and the number of the first matching elements are both plural, one first induction element is disposed corresponding to one first matching element, at least one first induction element is disposed in one of the cavity and the door body, and the corresponding first matching element is disposed in the other of the cavity and the door body.

3. A microwave heating device according to claim 2 wherein the number of the first induction elements and the number of the first matching elements are two, the two first induction elements are both arranged in the cavity at intervals, and the two first matching elements are both arranged on the door body at intervals.

4. A microwave heating apparatus as in claim 2 wherein the plurality of first sensing elements are spaced apart in a direction parallel to the axis of rotation of the door body.

5. A microwave heating apparatus as in claim 1 wherein the door includes a first end and a second end opposite the first end, the door being rotatably disposed on the cavity via the first end, one of the first sensing element and the first engaging element being disposed within the second end and the other being disposed within the cavity, the first sensing element and the first engaging element being aligned with each other when the door closes the heating chamber.

6. A microwave heating device in accordance with claim 1 wherein the first inductive element comprises a magnetically attracted switch and the first mating member comprises a magnetic element.

7. A microwave heating device in accordance with claim 1 wherein the microwave heating device comprises a support secured to the cavity, one of the first inductive element and the first mating element being secured to the support.

8. A microwave heating apparatus as in claim 7 wherein the support includes a base plate and a mounting bracket disposed on the base plate, the base plate being secured to the cavity, one of the first inductive element and the first mating element being captured on the mounting bracket.

9. A microwave heating apparatus as in claim 1 wherein the microwave heating apparatus comprises a second induction element and a second cooperating element, one of the second induction element and the second cooperating element being disposed within the cavity and the other being disposed within the door, the second induction element and the second cooperating element cooperating to control the microwave heating apparatus to stop operating when the door is open.

10. A microwave heating apparatus as in claim 9 wherein the second inductive element comprises a magnetically attractive switch and the second mating element comprises a magnetic member.