CN114413291A

CN114413291A - Microwave oven

Info

Publication number: CN114413291A
Application number: CN202111483174.4A
Authority: CN
Inventors: 唐春玉; 吴远兴; 谢艺飞
Original assignee: Zhongshan Donlim Weili Electrical Equipment Co Ltd
Current assignee: Zhongshan Donlim Weili Electrical Equipment Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-29

Abstract

The invention discloses a microwave oven, which comprises a microwave oven main body, a door body assembly, a sealing assembly, a heating module and a safety pressure relief assembly, wherein the microwave oven main body is provided with a cooking chamber for placing food; the sealing assembly is used for isolating the communication between the cooking chamber and the external space during working so as to enable the cooking chamber to form a closed chamber; the heating module is communicated with the cooking chamber and is provided with a heating device; the safety pressure relief assembly includes a valve body structure communicating the cooking chamber and the exterior space for limiting the safe cooking pressure of the cooking chamber. According to the microwave oven, the sealing structure is combined with the heating module to expand the functions of the microwave oven, and a user can flexibly use the optimal cooking heating mode according to different cooking food materials; the cooking cavity forms a cooking cavity with good tightness, and during the process of cooking and heating food, the cooked food is fed back and moistened, so that the cooking and cooking effects of the food are improved.

Description

Microwave oven

Technical Field

The invention relates to the technical field of household appliances, in particular to a microwave oven.

Background

Present microwave oven, slow boiling machine are the cooking tool of two kinds of different location of mutually independent, and in daily life, these two kinds of products are in the professional electrical apparatus product in different segmentation fields, carry out the isolated design to specific function separately, consequently the product function is single, causes single product frequency of use to be limited, especially slowly boils the machine, and it is the product that the frequency of use is very low itself, and the consumer buys the back and puts at home, occupies kitchen space. In order to expand the cooking function of the microwave oven, improve the use frequency of the microwave oven and improve the use scene of the slow cooker, if the two product functions are combined together, the combined household appliance with the functions of one machine and multiple functions is realized, so that the combined household appliance has all the functions of the microwave oven product and the slow cooker, is particularly important, can improve the use frequency of the electric appliance product, can provide more flexible use choices for consumers, improves the user experience, further promotes the sale and popularization of the electric appliance product, and is beneficial to both marketing parties. However, there is no such microwave oven product with multiple functions in the prior art, and how to effectively combine the structure and the function of the two microwave oven products is a technical difficulty in the prior art.

Disclosure of Invention

The invention provides a microwave oven aiming at the problems of the background and the prior art method, and the technical scheme of the invention is as follows:

a microwave oven comprises a microwave oven main body, a door body assembly, a sealing assembly, a heating module and a safety pressure relief assembly, wherein the microwave oven main body is provided with a cooking chamber for placing food, and the door body assembly is arranged on the surface of a taking and placing opening of the cooking chamber in an opening and closing manner and is used for opening or closing the taking and placing opening of the cooking chamber; the sealing assembly is used for isolating the communication between the cooking chamber and the external space during working so as to enable the cooking chamber to form a closed chamber; the heating module is communicated with the cooking chamber and is provided with a heating device; the safety pressure relief assembly includes a valve body structure communicating the cooking chamber and the exterior space for limiting the safe cooking pressure of the cooking chamber.

As a further illustration of the invention, the heat generating module comprises a first heat generating module that transfers heat to the cooking chamber by thermal radiation, and/or the heat generating module comprises a second heat generating module that transfers heat to the airflow entering the cooking chamber by convective heat transfer.

Further, the first heating module includes a convex cover detachably installed at the first sidewall opening of the microwave oven main body, and the heating device includes a first electric heater installed inside the convex cover, and the convex cover forms a cavity as a part of the cooking cavity.

Furthermore, a power supply hole and a plurality of reinforcing holes are formed in the convex hull cover body, and an electrode end of the first electric heater penetrates through the power supply hole and extends out of the outer side of the convex hull cover body; the cooking cavity is characterized in that the upper side wall of the cooking cavity is provided with a pressure relief hole, and the safety pressure relief assembly is arranged at the pressure relief hole and seals the pressure relief hole.

Furthermore, the second heating module comprises a heating cavity arranged on the outer side of the second side wall of the microwave oven main body, an air inlet and an air outlet are formed in the second side wall, and the heating cavity is communicated with the cooking cavity through the air inlet and the air outlet; the heating device comprises a second electric heater arranged in the heating cavity, and a blowing device is further arranged in the heating cavity to enable air flow to form circulation in the heating cavity and the cooking cavity.

Further, the second electric heater is a grid-like electric heater.

Further, the first sidewall and the second sidewall are respectively one of an upper sidewall, a left sidewall and a right sidewall of the microwave oven main body, and are not the same sidewall at the same time.

Still further, the microwave oven further comprises a pressure assembly arranged on the microwave oven main body or the heating module, and the pressure assembly is used for adjusting the cooking pressure when the cooking chamber works.

Furthermore, a pressure measuring assembly is arranged on the microwave oven main body and used for detecting the pressure of the cooking chamber and feeding back a pressure signal to the microwave oven controller.

Furthermore, the safety pressure relief assembly is mounted on the microwave oven main body or the heating module and comprises a pressure relief valve capable of adjusting and setting a pressure relief threshold value.

The invention has the beneficial effects that:

according to the microwave oven, the sealing structure is combined with the heating module to improve the cooking chamber of the microwave oven, so that the functions of microwave oven products are expanded, the microwave oven has all the functions of the microwave oven products, and also has the heating modes which are flexibly combined with the heating module to be used, so that different cooking heating effects are achieved, a user can flexibly use the optimal cooking heating mode according to different cooking food materials, and the cooking efficiency and the cooking effect of food are improved; on the other hand, the cooking cavity forms a cooking cavity with good tightness, and the cooked food is fed back and moistened in the process of cooking and heating the food, so that the cooking effect of the food can be further improved.

Drawings

FIG. 1 is a structural diagram of an embodiment of the present invention;

FIG. 2 is a structural diagram of a second embodiment of the present invention;

FIG. 3 is a diagram of a third structure according to an embodiment of the present invention.

Reference numerals: the microwave oven comprises a microwave oven main body 1, a cooking chamber 101, a first side wall 102, a second side wall 103, a pressure regulating air port 104, a door body assembly 2, a safety pressure relief assembly 3, a convex hull cover body 4, a reinforcing hole 401, a first electric heater 5, a pressure relief hole 6, an air inlet 7, an air outlet 8, a grid mesh electric heater 9, a blower device 10, a pressure assembly 11, a pressure sensor 12, a sealing ring 13, a sealing sleeve 14 and a turntable motor bearing 15.

Detailed Description

Example (b):

the embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely a part of the embodiments of the invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

A microwave oven comprises a microwave oven main body 1, a door body assembly 2, a sealing assembly, a heating module and a safety pressure relief assembly 3, wherein the microwave oven main body 1 is provided with a cooking chamber 101 for placing food, and the door body assembly 2 is arranged on the taking and placing opening surface of the cooking chamber 101 in an opening and closing manner and is used for opening or closing the taking and placing opening of the cooking chamber 101; the sealing assembly is used for isolating the cooking chamber 101 from being communicated with the external space during working, so that the cooking chamber 101 forms a closed chamber; the heating module is communicated with the cooking chamber 101 and is provided with a heating device; the safety relief assembly 3 includes a valve body structure communicating the cooking chamber 101 and the external space for limiting the safe cooking pressure of the cooking chamber 101.

According to the microwave oven provided by the embodiment of the invention, food to be cooked is placed in the cooking chamber 101 of the microwave oven, and after the door body assembly 2 is closed, the cooking chamber 101 forms the cooking chamber 101 with good tightness under the double limitation of the door body assembly 2 and the sealing assembly; in the process of cooking and heating food, water vapor emitted by the food is limited to be kept in the cooking chamber 101, and the cooked food is fed back and moistened, so that the problems that the food surface is dry and astringent, and the consumer experience and the food taste are influenced are solved; on the other hand, the cooking device can also be used as a slow cooking machine, and under the heating action of the heating device, the temperature of mixed gas mixed with water vapor in the cooking cavity 101 is continuously increased, so that the slow cooking effect on food in the cooking cavity 101 is formed. Because this embodiment microwave oven during operation culinary art cavity 101 is as airtight cavity, the steam that food culinary art and heating continuously produced can lead to the pressure in the culinary art cavity 101 too high, influence microwave oven's safe operation even, especially take place easily when food moisture is abundant, safe pressure release subassembly 3 who sets up for this reason, can with the pressure restriction in the during operation culinary art cavity 101 in certain safe value, can automatic start the pressure release action when its internal pressure exceeds safe value and discharge some gas, it is controllable to ensure culinary art cavity internal pressure, guarantee the safe handling of microwave oven product.

As an embodiment, referring to fig. 1, the heating module of this embodiment includes a first heating module having a built-in heating structure, which transfers heat to the cooking cavity by heat radiation, and a convex hull is formed by protruding one side wall (an upper side wall shown in fig. 1) of the cooking cavity 101 of the microwave oven body 1 as a first side wall 102, and a first electric heater 5 is disposed in the convex hull to form the first heating module, i.e., the cavity formed by the convex hull and the cooking cavity 101 are directly communicated to form an integrated cavity, and the first electric heater 5 has a direct heating effect on the mixed gas in the cooking cavity 101. Specifically, the present embodiment forms the first heating module by detaching the convex hull cover 4 installed at the opening of the first sidewall 102 of the microwave oven main body 1 and the first electric heater 5 installed inside the convex hull cover 4. The convex hull cover body 4 is provided with a power supply hole and a plurality of reinforcing holes 401, the electrode end of the first electric heater 5 penetrates through the power supply hole and extends out of the convex hull, the connection with a microwave oven controller is facilitated, the structural strength of the convex hull cover body 4 can be improved through the provided reinforcing holes 401, and the service life of the convex hull cover body is prolonged.

The preferred embodiment, see the attached drawing and show, set up pressure release hole 6 on the upper flank of microwave oven main part 1, safe pressure release subassembly 3 is installed in pressure release hole 6 department and seals pressure release hole 6, when cooking cavity 101 internal gas pressure exceedes the pressure release value that safe pressure release subassembly 3 set for during microwave oven operation, carry out the pressure release by safe pressure release subassembly 3, make unnecessary steam upwards discharge in the cooking cavity on the one hand, discharge steam direct contact wall when avoiding microwave oven to lean on the wall to use, also can reduce the possibility that discharge steam contact human body takes place to scald, guarantee microwave oven's safe operation, on the other hand can reduce the discharge of condensation steam, do benefit to and keep the steam in the cooking cavity, feed back and moisten the food of cooking, improve microwave oven's food culinary art effect.

In the embodiment shown in fig. 2, the heat generating module includes a second heat generating module, which is an external heat generating structure and transfers heat to the airflow entering the cooking cavity by means of convection heat transfer. One side wall (an upper side wall shown in fig. 1) of a cooking chamber 101 of a microwave oven main body 1 is used as a second side wall 103, a heating cavity is formed outside the second side wall 103, an air inlet 7 and an air outlet 8 are formed in the second side wall 103, and the heating cavity is communicated with the cooking chamber 101 through the air inlet 7 and the air outlet 8; a second electric heater (in the embodiment shown a grill-like electric heater 9) and a blower 10 are provided in the heating chamber to constitute a second heat generating module. Specifically, when the microwave oven starts the slow cooking function mode, the controller of the microwave oven starts the second heating module, and under the action of the blower device 10, the air in the cooking chamber 101 enters the heating cavity of the heating module from the air inlet 7, and is blown back into the cooking chamber 101 to the air outlet 8 after being heated by the grid mesh electric heater 9, so that the circulation effect of the air flow is formed. Meanwhile, in the circulation process of the air flow, the grid mesh electric heater 9 continuously heats the circulating air flow, so that the temperature of the circulating air flow is continuously increased, the high-temperature circulating air flow continuously contacts with food in the cooking cavity and uniformly heats the food, and meanwhile, water in the food can be continuously taken out, so that the cooking effect of the air fryer is formed, and the cooking effect of the food is improved.

In another embodiment, the heat generating module may be disposed on one of the left and right side walls of the microwave oven main body, that is, the left, right and upper side walls of the microwave oven main body may be flexibly used as the first and

second side walls

102 and 103.

It is easy to understand that the left side wall, the right side wall and the upper side wall of the microwave oven main body are not generally used as the first side wall 102 and the second side wall 103 at the same time, for example, as shown in fig. 3, which is a possible comprehensive embodiment of the present invention, in this embodiment, the heat generating module includes both the first heat generating module and the second heat generating module, wherein the first heat generating module is disposed on the upper side wall (i.e., the first side wall 102) of the microwave oven main body 1, and the second heat generating module is disposed on the left side wall (i.e., the second side wall 103) of the microwave oven main body 1, and the rest of the structure and operation principle of the first heat generating module and the second heat generating module are the same as the previous embodiment, and will not be described herein again. The respective advantage of the aforesaid embodiment has been synthesized to this embodiment, under the condition of two sets of heating structures simultaneous heating, has improved the heating effect when slowly boiling, makes to form mobile air current in the cooking chamber 101 moreover, has improved the efficiency of slowly boiling and the culinary art effect of food greatly.

As shown in fig. 1-3, in some embodiments, a pressure assembly 11 is further provided, and the cooking pressure of the cooking chamber 101 during operation is adjusted by the pressure assembly 11, and specifically includes a pressurizing structure and a pressure reducing structure, when the food to be cooked is suitable for positive pressure cooking, the cooking pressure in the cooking chamber 101 can be increased by the pressurizing structure, so as to form a positive pressure cooking environment greater than the air pressure, and improve the cooking effect of the food; when the food to be cooked is suitable for negative pressure cooking, the cooking pressure in the cooking chamber 101 can be reduced through the pressure reducing structure, a negative pressure cooking environment smaller than the air pressure is formed, and the cooking effect of the food is improved. Referring to the drawings, the pressure assembly 11 in the embodiment is an air pressure pump, and a pressure regulating port 104 is formed on a sidewall of the cooking chamber, so that the pressure in the cooking chamber can be regulated according to actual needs of food to be cooked.

Preferably, a load cell assembly is further provided in some embodiments for detecting the pressure of the cooking chamber 101 and feeding back a pressure signal to the microwave oven controller; the microwave oven controller controls the heating action of the microwave oven heating system and the pressure relief action of the valve body structure according to the feedback pressure signal. In this embodiment, the pressure measuring assembly includes the pressure sensor 12 disposed on the microwave oven main body 1, and is preferably disposed in the electric appliance chamber of the microwave oven main body 1, so as to facilitate connection and feedback with the microwave oven controller, and the detection end of the pressure sensor 12 extends to the cooking chamber 101, so as to accurately detect the pressure of the cooking chamber 101 during cooking in real time.

In some embodiments, the control panel of the microwave oven includes a pressure setting and displaying module for inputting a corresponding action threshold value for setting the pressure measurement control, and displaying the working pressure value detected by the pressure measurement component in real time, so that a user can conveniently set the operation parameters of the pressure measurement control microwave oven and visually know the operation state of the microwave oven. As described above, after the operation threshold is set by the pressure setting and displaying module, when the pressure in the cooking cavity exceeds the set value, the microwave oven controller can maintain the cooking pressure within the set range by controlling the heating system to stop heating or starting the safety pressure relief assembly 3 to relieve the pressure when the pressure in the cooking cavity exceeds the set value, thereby ensuring the pressure measurement to control the safe use of the microwave oven.

As shown in the attached drawings, the sealing assembly comprises two sealing parts, namely a door body sealing part and a rotary table sealing part, and corresponds to the existing common rotary table microwave oven, wherein the door body sealing part is used for sealing between a microwave oven door and a microwave oven main body 1, and is a sealing ring 13 matched with a cooking cavity 101 taking and placing opening and sleeved on a convex ring at the inner side of the microwave oven door, and the sealing ring 13 is extruded oppositely through the microwave oven door and the microwave oven main body 1 when the microwave oven door is closed, so that a gap between the microwave oven door and the microwave oven main body 1 is sealed, and the sealing effect of the cooking cavity 101 on the surface of the taking and placing opening is ensured. As a common turntable structure of a microwave oven, as shown in the accompanying drawings, a turntable of the microwave oven is generally disposed at the bottom of a cooking chamber 101 and is driven to rotate by a turntable motor disposed outside the cooking chamber 101, in this embodiment, a turntable sealing member disposed for the turntable structure of the microwave oven is a sealing sleeve 14, the sealing sleeve is matched with a turntable motor bearing 15 in size and is sleeved outside the turntable motor bearing 15, after assembly, a gap between the turntable motor bearing 15 and a microwave oven main body 1 is sealed, and a sealing effect of the cooking chamber 101 on the bottom surface of the turntable is ensured. The embodiment shown in the drawings shows a sealing manner of the sealing assembly to the cooking chamber 101 on two different surfaces of the cooking chamber 101, and it is easily understood that the shape of the cooking chamber 101 and the gap to be sealed may be different according to the structural design of the microwave oven, and the shape and number of the sealing members may be designed according to the actual situation in the specific implementation to ensure the sealing effect of the cooking chamber 101 during the operation.

The sealing assembly can be assembled outside or inside the cooking chamber, and is mainly installed through an installation fixing structure reserved in the microwave oven main body 1 or the door body assembly 2, so that the sealing performance of the cooking chamber is ensured, and the heating and slow cooking functional requirements of microwave oven products are met.

The microwave oven main body 1 of the present invention is equipped with a door lock system to firmly combine the door assembly with the microwave oven main body 1, thereby ensuring the normal cooking.

The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. The invention is not limited to the above embodiments, the specific construction of which allows variations, and in any case variations, which are within the scope of the invention as defined in the independent claims.

Claims

1. A microwave oven, characterized by: the microwave oven comprises a microwave oven main body, a door body assembly, a sealing assembly, a heating module and a safety pressure relief assembly, wherein the microwave oven main body is provided with a cooking chamber for placing food, and the door body assembly is arranged on the taking and placing opening surface of the cooking chamber in an opening and closing manner and is used for opening or closing the taking and placing opening of the cooking chamber; the sealing assembly is used for isolating the communication between the cooking chamber and the external space during working so as to enable the cooking chamber to form a closed chamber; the heating module is communicated with the cooking chamber and is provided with a heating device; the safety pressure relief assembly includes a valve body structure communicating the cooking chamber and the exterior space for limiting the safe cooking pressure of the cooking chamber.

2. The microwave oven as claimed in claim 1, wherein: the heating module comprises a first heating module that transfers heat to the cooking chamber by thermal radiation, and/or a second heating module that transfers heat to the airflow entering the cooking chamber by convective heat transfer.

3. The microwave oven as claimed in claim 2, wherein: the first heating module comprises a convex hull cover body detachably mounted at an opening of a first side wall of the microwave oven main body, the heating device comprises a first electric heater mounted on the inner side of the convex hull cover body, and a cavity formed by the convex hull cover body is used as a part of a cooking cavity.

4. The microwave oven as claimed in claim 3, wherein: the convex hull cover body is provided with a power supply hole and a plurality of reinforcing holes, and the electrode end of the first electric heater penetrates through the power supply hole and extends out of the outer side of the convex hull cover body; the cooking cavity is characterized in that the upper side wall of the cooking cavity is provided with a pressure relief hole, and the safety pressure relief assembly is arranged at the pressure relief hole and seals the pressure relief hole.

5. The microwave oven as claimed in claim 2, 3 or 4, wherein: the second heating module comprises a heating cavity arranged on the outer side of a second side wall of the microwave oven main body, an air inlet and an air outlet are formed in the second side wall, and the heating cavity is communicated with the cooking cavity through the air inlet and the air outlet; the heating device comprises a second electric heater arranged in the heating cavity, and a blowing device is further arranged in the heating cavity to enable air flow to form circulation in the heating cavity and the cooking cavity.

6. The microwave oven according to claim 5, wherein: the second electric heater is a grid mesh electric heater.

7. The microwave oven according to claim 5, wherein: the first side wall and the second side wall are respectively one of an upper side wall, a left side wall and a right side wall of the microwave oven main body and are not the same side wall at the same time.

8. The microwave oven as claimed in claim 1, wherein: the microwave oven further comprises a pressure assembly arranged on the microwave oven main body or the heating module, and the pressure assembly is used for adjusting the cooking pressure of the cooking chamber during working.

9. The microwave oven according to claim 1 or 8, wherein: and the microwave oven main body is provided with a pressure measuring assembly for detecting the pressure of the cooking chamber and feeding back a pressure signal to the microwave oven controller.

10. The pressure measuring control microwave oven according to claim 1 or 8, wherein: the safety pressure relief assembly is arranged on the microwave oven main body or the heating module and comprises a pressure relief valve capable of adjusting and setting a pressure relief threshold value.