CN112689346B - Mounting bracket and cooking utensil - Google Patents

Mounting bracket and cooking utensil Download PDF

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Publication number
CN112689346B
CN112689346B CN202011643574.2A CN202011643574A CN112689346B CN 112689346 B CN112689346 B CN 112689346B CN 202011643574 A CN202011643574 A CN 202011643574A CN 112689346 B CN112689346 B CN 112689346B
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China
Prior art keywords
mounting
temperature sensor
cavity
bracket
air
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CN202011643574.2A
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CN112689346A (en
Inventor
李永杰
戚志斌
周钰波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Priority to CN202011643574.2A priority Critical patent/CN112689346B/en
Publication of CN112689346A publication Critical patent/CN112689346A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Cookers (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

The invention discloses a mounting bracket and discloses a cooking appliance with the mounting bracket, wherein the mounting bracket is used for mounting a temperature sensor and comprises a mounting part, an air guide part and a fan, a mounting cavity for mounting the temperature sensor is arranged in the mounting part, and the mounting part is also provided with a first detection hole; the air guide part is connected with the installation cavity and is provided with an air guide cavity communicated with the installation cavity; the fan is arranged on the air guide part and blows air to the mounting cavity through the air guide cavity. When the temperature sensor carries out real-time detection to thermal radiation through first detection pore, the fan can be full of the installation cavity in the twinkling of an eye along the cold wind that the wind-guiding chamber blew off, makes the atmospheric pressure in the installation cavity be higher than the atmospheric pressure in the furnace body to effective separation comes from hot-air and the steam in the furnace body, avoids temperature sensor to damage when guaranteeing temperature sensor detection accuracy.

Description

Mounting bracket and cooking utensil
Technical Field
The invention relates to the field of household appliances, in particular to a mounting bracket and a cooking appliance.
Background
The heat dissipation of the existing microwave oven temperature sensor mainly has two modes, namely an infrared fixed type mode and an infrared swinging type mode, in the first mode, because an infrared detection head is fixed, the detection can be more accurate, but the infrared detection head is easily influenced by steam and heat inside a cavity of the microwave oven, so that the infrared induction detection head is easily covered by water vapor and cannot normally detect the heat or the sensor is damaged due to higher heated temperature. In the second mode, because the infrared sensing probe swings, the sensor can be prevented from being damaged due to the fact that the infrared sensing probe is covered by water vapor or the temperature of heated water is high, but the detection reaction speed is low, the temperature of a real object in the cavity can not be monitored in real time, and the structure needs to be supported by an electric component, so that the structure is complex and high in cost.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the mounting bracket which can accurately detect and simultaneously avoid the damage of the temperature sensor.
The invention also provides a cooking appliance with the mounting bracket.
The mounting bracket is used for mounting a temperature sensor and comprises a mounting part, an air guide part and a fan, wherein a mounting cavity for mounting the temperature sensor is arranged in the mounting part, and the mounting part is also provided with a first detection hole; the air guide part is connected with the installation cavity and is provided with an air guide cavity communicated with the installation cavity; the fan is arranged on the air guide part and blows air to the mounting cavity through the air guide cavity.
The mounting bracket provided by the embodiment of the invention at least has the following beneficial effects: when the temperature sensor carries out real-time detection to thermal radiation through first detection pore, the fan can be full of the installation cavity in the twinkling of an eye along the cold wind that the wind-guiding chamber blew off, makes the atmospheric pressure in the installation cavity be higher than the atmospheric pressure in the furnace body to effective separation comes from hot-air and the steam in the furnace body, avoids temperature sensor to damage when guaranteeing temperature sensor detection accuracy.
According to some embodiments of the invention, the mounting portion and the fan are respectively disposed at both ends of the air guide portion.
According to some embodiments of the invention, the mounting portion comprises a mounting plate and a cover, the mounting plate being provided with a first detection hole; the cover body covers the mounting plate and is matched with the mounting plate to limit the mounting cavity.
According to some embodiments of the invention, a bracket is arranged in the mounting cavity, the bracket is provided with a through hole, the through hole and the first detection hole are correspondingly arranged, and the temperature sensor is fixed on the bracket.
According to some embodiments of the invention, the bracket is provided with a mounting location, the temperature sensor being provided within the mounting location.
According to some embodiments of the invention, the bracket is provided with a vent hole, the vent hole being located at the mounting location.
According to some embodiments of the invention, the bracket is snap-fitted to the mounting plate, and the cover is snap-fitted to the bracket.
According to some embodiments of the invention, the mounting plate and the air guide portion are integrally formed.
The cooking appliance comprises a stove body and the mounting bracket, wherein the side wall of the stove body is provided with a second detection hole; the mounting bracket is mounted on the side wall of the furnace body, and the first detection hole and the second detection hole are correspondingly arranged.
According to the cooking utensil provided by the embodiment of the invention, at least the following beneficial effects are achieved: when the temperature sensor carries out real-time detection to thermal radiation through first detection pore, the fan can be full of the installation cavity in the twinkling of an eye along the cold wind that the wind-guiding chamber blew off, makes the atmospheric pressure in the installation cavity be higher than the atmospheric pressure in the furnace body to effective separation comes from hot-air and the steam in the furnace body, avoids temperature sensor to damage when guaranteeing temperature sensor detection accuracy.
According to some embodiments of the invention, the side wall of the furnace body is provided with a mounting groove, the second detection hole is located in the mounting groove, and the mounting portion is disposed in the mounting groove.
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 invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic view of a mounting bracket (without a fan) according to an embodiment of the present invention;
fig. 2 is an exploded view of a cooking appliance according to an embodiment of the present invention;
FIG. 3 is an enlarged view of section A of an embodiment of the present invention;
fig. 4 is a schematic view of a cooking appliance according to an embodiment of the present invention;
FIG. 5 is a schematic view of a stent according to an embodiment of the present invention.
Reference numerals
The air conditioner comprises a furnace body 100, a second detection hole 110, a mounting groove 111, an air guide part 200, a mounting part 300, a mounting plate 310, a first detection hole 311, a first clamping block 312, a cover body 320, a second clamping block 321, a support 330, a mounting position 331, a through hole 332, a vent hole 333, a first clamp 334, a second clamp 335, a fan 400 and a temperature sensor 500.
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 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 understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
Referring to fig. 2 and 4, the cooking appliance according to the embodiment of the present invention includes a stove body 100 and a mounting bracket, wherein the mounting bracket is used for mounting a temperature sensor 500, referring to fig. 1, the mounting bracket includes a mounting portion 300, an air guide portion 200 and a fan 400, a mounting cavity for mounting the temperature sensor 500 is provided inside the mounting portion 300, the mounting portion 300 is provided with a first detection hole 311, and the mounting portion 300 is provided with an air outlet; the air guide part 200 is provided with an air guide cavity, the air guide part 200 is connected with the installation part 300, and the air guide cavity is communicated with the installation cavity; the fan 400 is disposed on the air guiding portion 200 and supplies air to the installation cavity along the air guiding cavity.
Temperature sensor 500 installs in the installation cavity, particularly, temperature sensor 500 and first detection hole 311 position correspond, wherein, temperature sensor 500 can be infrared sensor, temperature sensor 500 can carry out real-time detection through the infrared radiation of first detection hole 311 in to furnace body 100, and simultaneously, the cold wind that fan 400 blew out blows in the installation cavity along the wind-guiding chamber, make the installation cavity be full of cold air in the twinkling of an eye, cool temperature sensor 500, furthermore, because the space of the installation cavity of installation department 300 inside is very little, therefore, fan 400 can be full of the installation cavity in the twinkling of an eye along the cold wind-guiding chamber that blew out, make the atmospheric pressure in the installation cavity be higher than the atmospheric pressure in the furnace body 100, thereby effective separation comes from hot-air and the steam in the furnace body 100, avoid temperature sensor 500 to damage when guaranteeing temperature sensor 500 and detecting the accuracy.
It should be mentioned that, after the cold air in the air guide cavity is injected into the installation cavity, the temperature sensor 500 can be cooled, at this time, the temperature of the temperature sensor 500 is reduced, and the temperature sensor 500 detects the temperature by receiving the infrared radiation, so that the detection precision of the temperature sensor 500 is not affected by the cooling of the cold air on the temperature sensor 500.
It can be understood that the temperature sensor 500 can be installed in the installation cavity of the installation part 300 by means of screw fixation or clamping connection, and during installation, it is required to ensure that the temperature sensor 500 and the first detection hole 311 are correspondingly located, so that the temperature sensor 500 can sufficiently penetrate through the first detection hole 311 to detect the heat radiation from the inside of the furnace body 100.
Referring to fig. 2, the side wall of the furnace body 100 is provided with a second detection hole 110, and a mounting bracket is mounted on the side wall of the furnace body 100, wherein the first detection hole 311 of the mounting bracket and the second detection hole 110 on the side wall are correspondingly arranged.
A cooking appliance is an apparatus for heating food by electricity or magnetism, including a microwave oven and the like. It is including being used for placing and heating the furnace body 100 of food, food can produce a large amount of hot-air and steam at the in-process of furnace body 100 internal heating, hot-air and steam can follow gap or the through-hole 332 outflow of furnace body 100, specifically speaking, a large amount of hot-air and steam can flow out from second detecting hole 110, and to the temperature sensor 500 department in the installation department 300, at this moment, fan 400 bloies and makes the installation cavity in the installation department 300 be full of cold air fast, cold air cools off the temperature sensor 500 that is heated, the refrigerated while does not stop injecting cold wind, the partial air of intensification blows out from the air outlet, specifically speaking, cooking utensil is in the course of the work, form the passageway that the air flows in the installation department 300, the air that fan 400 insufflates blows in behind the installation cavity, absorb temperature sensor 500's heat, and blow out from the air outlet, make the temperature in the installation cavity maintain lower level. Meanwhile, cold air is blown in to keep high air pressure in the installation cavity, so that the hot air and water vapor from the furnace body 100 are blocked, the hot air and the water vapor are prevented from corroding the temperature sensor 500, and the temperature sensor 500 is prevented from being damaged.
It should be noted that, because the air pressure in the installation cavity needs to be maintained, the size of the air outlet is relatively small, and the size of the air outlet is between 0.8mm and 1.2 mm.
It can be understood that, be provided with the pencil that is used for the electricity to connect on temperature sensor 500, the temperature sensor 500 of installing in installation department 300 needs to come to electrically connect with the control circuit among the cooking utensil through the pencil, therefore, installation department 300 is provided with the gap that supplies the pencil to stretch out, a concrete structural style of foretell gas outlet can be regarded as in its gap, in actual installation, temperature sensor 500's pencil is worn out from the gap, and be connected with the control circuit electricity in the cooking utensil, when actual operation, absorbed thermal air and blown out from the gap, the width in its gap is 0.1mm, effectively guarantee the atmospheric pressure in the installation cavity, avoid high temperature steam to get into the installation cavity and lead to temperature sensor 500 to wet the heating.
It is understood that the mounting part 300 and the fan 400 are respectively disposed at both ends of the wind guide part 200. Specifically, the fan 400 is disposed at the lower end of the air guiding portion 200 and located at the bottom of the furnace body 100, the installation portion 300 is disposed on the sidewall of the furnace body 100 and located at the upper end of the air guiding portion 200, and the first detection hole 311 corresponds to the second detection hole 110, wherein the air guiding portion 200 and the installation portion 300 are both fixed on the sidewall, so as to prevent the air guiding portion 200 or the installation portion 300 from shaking, which may cause the temperature sensor 500 to fail to accurately detect thermal radiation. The installation part 300 and the fan 400 are respectively disposed at both ends of the air guide part 200, so that the size of the air guide part 200 can be maximally reduced, and the cold air conveying distance can be shortened, so that the installation cavity can continuously maintain a high air pressure state, and hot air and high-temperature water vapor from the inside of the furnace body 100 can be blocked. It is understood that the mounting portion 300 and the fan 400 may not be disposed at the end of the wind guide portion 200, and in this embodiment, both ends of the wind guide portion 200 should be sealed to ensure that cold wind is blown from the fan 400 and flows into the mounting cavity.
It is understood that, referring to fig. 1, the mounting portion 300 includes a mounting plate 310 and a cover body 320, the mounting plate 310 being provided with a first detection hole 311; the cover body 320 covers the mounting plate 310, and the cover body 320 is fixedly coupled to the mounting plate 310.
It can be understood that, because the mounting portion 300 is a detachable structure, when the temperature sensor 500 is mounted, the temperature sensor 500 can be firstly placed on the mounting plate 310, and then the cover body 320 is covered and the cover body 320 and the mounting plate 310 are fixed, so that the mounting is convenient. Specifically, after the mounting plate 310 and the cover 320 are mounted and matched, an air inlet (not shown) communicated with the air guiding cavity is formed in the whole mounting portion 300, the mounting cavity is communicated with the air guiding cavity through the air inlet, and cold air flowing through the air guiding cavity passes through the air inlet and fills the mounting cavity.
It is understood that, referring to fig. 1, the mounting plate 310 and the wind guide portion 200 are integrally formed. Specifically, one end of the air guiding portion 200 is provided with the fan 400, the other end of the air guiding portion is provided with the air outlet, the air outlet of the air guiding portion 200 extends to form the mounting plate 310, the cover body 320 covers the mounting plate 310, so that the mounting cavity is formed by the mounting portion 300, the air guiding cavity is communicated with the mounting cavity through the air outlet, so that cold air blown out from the fan 400 can be filled in the mounting cavity, the mounting plate 310 is directly and integrally formed with the air guiding portion 200, the process of connecting the mounting portion 300 and the air guiding portion 200 can be omitted, the mounting portion 300 can be assembled only by matching the mounting plate 310 and the cover body 320, the mounting portion 300 is connected with the air guiding portion 200, and assembly and processing are convenient.
It can be understood that, referring to fig. 3, the sidewall of the furnace body 100 is provided with a mounting groove 111, the second detection hole 110 is located in the mounting groove 111, and the mounting portion 300 is disposed in the mounting groove 111. Specifically, its mounting groove 111 is sunken to the inner chamber direction of furnace body 100 to supply installation department 300 to install, wherein set up second detection hole 110 in the mounting groove 111, installation department 300 places back in mounting groove 111, makes first detection hole 311 and second detection hole 110 align, can be to the preliminary restraint location of installation department 300, in addition, install installation department 300 can reduce whole cooking utensil's volume in mounting groove 111, saves the space that the installing support occupied.
It is understood that, referring to fig. 1 and 2, a bracket 330 is disposed in the mounting cavity, the bracket 330 is provided with a through hole 332, the through hole 332 is disposed corresponding to the first detection hole 311, and the temperature sensor 500 is fixed on the bracket 330. When assembled, the bracket 330 is mounted in the mounting cavity, and specifically, referring to fig. 1, the bracket 330 is mounted on the mounting plate 310, the edge of the mounting plate 310 is provided with a rib which acts as a primary restraint for the bracket 330, the temperature sensor 500 is mounted on the bracket 330 and is mounted on the mounting plate 310 together with the bracket 330, and after the bracket 330 is mounted on the mounting plate 310, the mounting plate 310 is covered with the cover 320 and the temperature sensor 500 and the bracket 330 are placed in the mounting cavity. During the installation process, the through hole 332 and the first detection hole 311 are required to be aligned, so that the temperature sensor 500 can detect the thermal radiation in the furnace body 100 through the through hole 332 and the first detection hole 311.
It is understood that, referring to fig. 5, the bracket 330 is provided with a mounting location 331, and the temperature sensor 500 is disposed within the mounting location 331. An installation position 331 for installing the temperature sensor 500 is arranged in the bracket 330, the temperature sensor 500 can be clamped in the installation position 331 or fixed and connected through screws and the like, the bracket 330 and the temperature sensor 500 are modularized and installed in an installation cavity, and the installation is convenient.
It is understood that, in the above-described embodiment, after the bracket 330 is mounted in the mounting cavity, the bracket 330 may affect the cold air to cool the temperature sensor 500, and therefore, referring to fig. 5, the bracket 330 is provided with the vent 333, and the vent 333 is provided at the mounting position 331. In the actual working process, the fan 400 blows cold air into the air guide cavity, the cold air enters the installation cavity along the air guide cavity, after the cold air blows into the air guide cavity, the whole installation cavity is instantly filled with air for cooling through the vent hole 333, meanwhile, the cold air blows from the vent hole 333, and the temperature sensor 500 is directly cooled.
It will be appreciated that the bracket 330 is snap-fitted to the mounting plate 310 and the cover 320 is snap-fitted to the bracket 330. Referring to fig. 1, first clamping blocks 312 are disposed on two sides of a mounting plate 310, first buckles 334 clamped with the first clamping blocks 312 are disposed on two sides of a bracket 330, a second clamping block 321 is disposed on a cover 320, a second buckle 335 clamped with the second clamping blocks 321 is disposed on the bracket 330, when assembling, a temperature sensor 500 is firstly mounted on a mounting position 331 to fixedly connect the temperature sensor 500 with the bracket 330, then the first clamping blocks 312 are clamped with the first buckles 334 to mount the bracket 330 on the mounting plate 310, and finally the cover 320 covers the bracket 330 to clamp the second clamping blocks 321 with the second buckles 335, specifically, referring to fig. 1, the bracket 330 is disposed with a single second buckle 335, the cover 320 is disposed with a single second clamping block 321, one side of the cover 320 and one side of the bracket 330 are fixed by clamping, and the other side of the cover 320 and the bracket 330 are fixedly connected by screws to improve stability. In addition, when second joint piece 321 and second buckle 335 joint cooperation, also can carry out preliminary location restraint, the convenience is carried out to support 330 and lid 320, and is convenient
It can be understood that the cover 320 may also be provided with the second fastening blocks 321 on both sides, and the cover 320 and the bracket 330 may also be assembled by matching with the bracket 330 provided with the second fasteners 335 on both sides.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (8)

1. The installing support for install temperature sensor, its characterized in that includes:
the temperature sensor comprises a mounting part and a temperature sensor body, wherein a mounting cavity for mounting the temperature sensor is formed in the mounting part, and the mounting part is also provided with a first detection hole;
the air guide part is connected with the installation cavity and is provided with an air guide cavity communicated with the installation cavity;
the fan is arranged on the air guide part and blows air to the mounting cavity through the air guide cavity;
the mounting part comprises a mounting plate and a cover body, and the mounting plate is provided with the first detection hole; the cover body covers the mounting plate and is matched with the mounting plate to define the mounting cavity; the temperature sensor is characterized in that a support is arranged in the mounting cavity, a through hole is formed in the support, the through hole corresponds to the first detection hole, and the temperature sensor is fixed on the support.
2. The mounting bracket of claim 1, wherein the mounting portion and the fan are respectively disposed at two ends of the air guide portion.
3. The mounting bracket of claim 1, wherein the bracket is provided with a mounting location, the temperature sensor being disposed within the mounting location.
4. A mounting bracket according to claim 3, wherein the bracket is provided with a vent hole, the vent hole being located at the mounting location.
5. The mounting bracket of claim 1, wherein the bracket is snap-fit to the mounting plate and the cover is snap-fit to the bracket.
6. The mounting bracket of claim 1, wherein the mounting plate and the wind-guiding portion are integrally formed.
7. Cooking appliance, characterized in that it comprises:
the side wall of the furnace body is provided with a second detection hole;
the mounting bracket according to any one of claims 1 to 6, which is mounted on a side wall of the furnace body, wherein the first detection hole and the second detection hole are correspondingly arranged.
8. The cooking appliance according to claim 7, wherein the side wall of the oven body is provided with a mounting groove, the second detection hole is located in the mounting groove, and the mounting portion is disposed in the mounting groove.
CN202011643574.2A 2020-12-31 2020-12-31 Mounting bracket and cooking utensil Active CN112689346B (en)

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Application Number Priority Date Filing Date Title
CN202011643574.2A CN112689346B (en) 2020-12-31 2020-12-31 Mounting bracket and cooking utensil

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Application Number Priority Date Filing Date Title
CN202011643574.2A CN112689346B (en) 2020-12-31 2020-12-31 Mounting bracket and cooking utensil

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Publication Number Publication Date
CN112689346A CN112689346A (en) 2021-04-20
CN112689346B true CN112689346B (en) 2023-03-21

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126748A2 (en) * 2000-02-14 2001-08-22 Kabushiki Kaisha Toshiba Heating apparatus with temperature sensor comprising infared sensing elements
KR100767043B1 (en) * 2006-07-20 2007-10-12 린나이코리아 주식회사 A cooling device for magnetron
CN204993931U (en) * 2015-09-25 2016-01-20 广东美的厨房电器制造有限公司 Microwave oven
CN205137570U (en) * 2015-10-30 2016-04-06 广东美的厨房电器制造有限公司 Microwave oven
CN210783929U (en) * 2019-07-04 2020-06-19 广东格兰仕集团有限公司 Cooking appliance with infrared sensor
CN211716630U (en) * 2020-03-11 2020-10-20 上海纯米电子科技有限公司 Air duct structure and microwave oven with same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126748A2 (en) * 2000-02-14 2001-08-22 Kabushiki Kaisha Toshiba Heating apparatus with temperature sensor comprising infared sensing elements
KR100767043B1 (en) * 2006-07-20 2007-10-12 린나이코리아 주식회사 A cooling device for magnetron
CN204993931U (en) * 2015-09-25 2016-01-20 广东美的厨房电器制造有限公司 Microwave oven
CN205137570U (en) * 2015-10-30 2016-04-06 广东美的厨房电器制造有限公司 Microwave oven
CN210783929U (en) * 2019-07-04 2020-06-19 广东格兰仕集团有限公司 Cooking appliance with infrared sensor
CN211716630U (en) * 2020-03-11 2020-10-20 上海纯米电子科技有限公司 Air duct structure and microwave oven with same

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