WO2020151595A1 - 加热装置及冰箱 - Google Patents

加热装置及冰箱 Download PDF

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Publication number
WO2020151595A1
WO2020151595A1 PCT/CN2020/072796 CN2020072796W WO2020151595A1 WO 2020151595 A1 WO2020151595 A1 WO 2020151595A1 CN 2020072796 W CN2020072796 W CN 2020072796W WO 2020151595 A1 WO2020151595 A1 WO 2020151595A1
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WO
WIPO (PCT)
Prior art keywords
heating device
signal processing
control circuit
heating
measurement
Prior art date
Application number
PCT/CN2020/072796
Other languages
English (en)
French (fr)
Inventor
王海娟
李鹏
Original Assignee
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海尔智家股份有限公司 filed Critical 海尔智家股份有限公司
Priority to EP20745742.5A priority Critical patent/EP3910272B1/en
Priority to US17/424,620 priority patent/US20220099361A1/en
Priority to AU2020212872A priority patent/AU2020212872B2/en
Publication of WO2020151595A1 publication Critical patent/WO2020151595A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/365—Thawing subsequent to freezing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/642—Cooling of the microwave components and related air circulation systems
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control
    • H05B6/688—Circuits for monitoring or control for thawing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/02—Induction heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/72—Radiators or antennas

Definitions

  • the invention relates to the field of food heating, in particular to a heating device and a refrigerator with the heating device.
  • the quality of the food is maintained during the freezing process, but the frozen food needs to be heated before being processed or eaten.
  • the prior art generally heats the food by installing a heating device or a microwave device in the refrigerator.
  • heating food through a heating device generally requires a long heating time, and the heating time and temperature are not easy to control, which easily causes the water to evaporate and the juice loss of the food, and the quality of the food is lost.
  • Heating food by microwave device is fast and efficient, so the nutrient loss of the food is very low.
  • due to the difference in the penetration and absorption of water and ice by microwave the internal material distribution of the food is uneven, and the area has been melted A lot of energy is absorbed, which is prone to problems of uneven heating and local overheating.
  • An objective of the first aspect of the present invention is to overcome at least one defect in the prior art and provide a heating device with a larger heating space and high space utilization.
  • Another object of the first aspect of the present invention is to improve the heating uniformity of the heating device.
  • a further object of the first aspect of the present invention is to quickly lower the temperature of the heating component of the heating device to improve its heating efficiency and heating effect.
  • the object of the second aspect of the present invention is to provide a refrigerator having the above heating device.
  • the present invention provides a heating device, which includes:
  • a cylinder which defines a heating chamber for placing the object to be processed
  • Electromagnetic generation module used to generate electromagnetic wave signals
  • a radiating antenna electrically connected to the electromagnetic generating module, to generate electromagnetic waves of corresponding frequencies in the heating chamber according to the electromagnetic wave signal, thereby heating the object to be processed in the heating chamber;
  • the signal processing and measurement and control circuit is electrically connected with the electromagnetic generating module and is arranged outside the cylinder.
  • the cylinder is surrounded by an upper cover, a bottom plate, a rear cover and two lateral side plates, so that the heating chamber defined therein has a front opening;
  • the heating device also includes a door for opening and closing the front side opening;
  • the signal processing and measurement control circuit is located on the back side of the back cover.
  • a cover plate is provided on the rear side of the back cover, an accommodating cavity is defined between the cover plate and the back cover, and the signal processing and measurement control circuit is disposed in the accommodating cavity;
  • the back plate of the cover plate opposite to the back cover is provided with a through hole to allow the heat generated by the signal processing and measurement and control circuit to be dissipated through the through hole.
  • the rear plate of the cover plate is adjacent to the air duct of the refrigerator, and the through hole on the rear plate is connected to the air duct of the refrigerator.
  • the air ducts are connected to quickly cool the signal processing and measurement and control circuit through the cooling airflow in the air supply duct.
  • the signal processing and measurement and control circuit is integrated on a circuit board.
  • the circuit board is fixed to the rear surface of the back cover by screws, and the back cover is firmly connected to the bottom plate, the upper cover and the two lateral side plates by screws.
  • the door body includes a metal end plate for blocking the front side opening to close the heating chamber and a conductive connector electrically connected to the metal end plate, and the conductive connector is configured to At least when the door body is in a closed state that closes the front side opening, it is electrically connected to the cylinder, so that when the door body is in the closed state, the cylinder and the door body are continuously conductive. Shield body.
  • the heating device further includes:
  • the radome is arranged in the cylinder and divides the internal space of the cylinder into a heating chamber and an electrical room, wherein the object to be processed and the radiation antenna are respectively provided in the heating chamber and the electrical room.
  • the present invention also provides a refrigerator, which includes:
  • a box body defining at least one storage compartment inside
  • the heating device of any one of the foregoing is arranged in one of the storage compartments.
  • a compressor compartment for placing the compressor is also defined in the box body;
  • the electromagnetic generating module of the heating device is arranged in the compressor compartment, and is connected to the signal processing and measurement and control circuit through a radio frequency cable and a signal transmission cable, and is further connected to the antenna through the signal processing and measurement and control circuit.
  • the plates are electrically connected.
  • the heating device of the present invention uses a radio frequency heating method to heat the object to be processed, and the heating effect is good.
  • the signal processing and measurement and control circuit are arranged on the outside of the cylinder, and do not occupy the heating chamber space inside the cylinder, which greatly increases the available space in the heating chamber and improves the space utilization rate of the heating chamber.
  • the signal processing and measurement and control circuit are arranged on the outside of the cylinder, which can also prevent the heat generated by the signal processing and measurement and control circuit during operation (such as the heat emitted by the inductance of the signal processing and measurement and control circuit) from entering the heating chamber and transferring to the object to be processed , Improve the uniformity of heating.
  • the signal processing and measurement and control circuit is arranged in a receiving cavity formed between the rear cover of the cylinder and a cover plate, and the through hole on the cover plate is connected to the air supply duct of the refrigerator, so that the receiving cavity can be connected to the air supply. Road is connected.
  • the cooling airflow in the air supply duct can be used to quickly dissipate heat and reduce the temperature of the heating components of the signal processing and measurement and control circuit, ensuring that the performance of the signal processing and measurement and control circuit is not affected by high temperature, thereby improving the heating device The heating efficiency and heating effect.
  • Fig. 1 is a schematic structural diagram of a heating device according to an embodiment of the present invention.
  • Figure 2 is a schematic cross-sectional view of a heating device according to an embodiment of the present invention.
  • Figure 3 is a schematic exploded view of a heating device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of the heating device according to an embodiment of the present invention after concealing part of the barrel structure;
  • Figure 5 is a schematic structural diagram of a heating device according to an embodiment of the present invention applied to a refrigerator;
  • Fig. 6 is a schematic enlarged view of part A in Fig. 5;
  • Fig. 7 is a schematic structural block diagram of a heating device according to an embodiment of the present invention.
  • Fig. 8 is a circuit diagram of a matching unit according to an embodiment of the present invention.
  • Fig. 9 is a schematic structural exploded view of a door according to an embodiment of the present invention.
  • the present invention first provides a heating device for heating the object to be processed.
  • the heating device can be used in a refrigerator-like refrigerating and freezing device or used alone.
  • FIG. 1 is a schematic structural diagram of a heating device according to an embodiment of the present invention
  • Fig. 2 is a schematic cross-sectional view of a heating device according to an embodiment of the present invention
  • Fig. 3 is a schematic view of a heating device according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view of a heating device according to an embodiment of the present invention with part of the barrel structure concealed.
  • the heating device in Figs. 3 and 4 is in an upside-down state.
  • the front, back, upper, and lower positions in Figs. 3 and 4 indicate the orientation of the heating device when it is in normal use.
  • the heating device 10 of the present invention includes a cylinder 110, an electromagnetic generating module 121 (see FIG. 5), a radiation antenna 122, and a signal processing and measurement control circuit 140.
  • the barrel 110 defines a heating chamber for preventing objects to be processed.
  • the electromagnetic generating module 121 is used to generate electromagnetic signals.
  • the radiating antenna 122 is electrically connected to the electromagnetic generating module 121 to generate electromagnetic waves of a corresponding frequency in the heating chamber according to the electromagnetic signal generated by the electromagnetic generating module 121, thereby heating the object to be processed in the heating chamber.
  • the signal processing and measurement and control circuit 140 is electrically connected to the electromagnetic generation module 121 and is arranged outside the cylinder 110 for detecting and adjusting the specific characteristics of the electromagnetic waves generated by the electromagnetic generation module 121. Specific characteristics of electromagnetic waves may include the power of incident waves and the power of reflected waves.
  • the heating device 10 of the present invention uses radio frequency heating to heat the object to be processed, and the heating effect is good.
  • the electromagnetic wave generated by the electromagnetic generating module 121 may be an electromagnetic wave with a suitable wavelength, such as radio frequency waves and microwaves. This method of using electromagnetic waves to heat the object to be processed has high heating efficiency, uniform heating, and can ensure
  • the signal processing and measurement and control circuit 140 is arranged outside the barrel 110 and does not occupy the heating chamber space inside the barrel 110, greatly increasing the available space in the heating chamber and improving the space utilization of the heating chamber.
  • the signal processing and measurement and control circuit 140 is arranged on the outside of the cylinder 110, which can also prevent the heat generated by the signal processing and measurement and control circuit 140 during operation (such as the heat emitted by the inductance of the signal processing and measurement and control circuit) from entering the heating chamber and transferring to The object to be treated improves the uniformity of heating.
  • the barrel 110 may be made of metal to serve as a receiving pole to receive electromagnetic waves generated by the radiation antenna 122.
  • the cylinder 110 is surrounded by an upper cover 111, a bottom plate 112, a rear cover 113, and two lateral side plates 114, so that the heating chamber defined therein has a front opening.
  • the heating device 10 further includes a door 130 for opening and closing the front opening of the heating chamber.
  • the door body 130 may be installed with the cylinder body 110 by an appropriate method.
  • the signal processing and measurement control circuit 140 is located on the rear side of the rear cover 113. In other words, the signal processing and measurement control circuit 140 is located outside the rear cover 113. Therefore, the signal processing and measurement and control circuit 140 can be prevented from being exposed to the front side or the left and right sides, and the visual aesthetic effect of the heating device 10 is improved. At the same time, when the heating device 10 is placed in the refrigerator, the signal processing and measurement and control circuit 140 can avoid occupying the side, upper or lower space of the refrigerator compartment, and the signal processing and measurement and control circuit 140 can be closer to the rear of the refrigerator.
  • the air supply duct facilitates heat dissipation.
  • the rear side of the back cover 113 may be provided with a cover plate 150, a receiving cavity is defined between the cover plate 150 and the back cover 113, and the signal processing and measurement control circuit 140 is disposed between the cover plate 150 and the back cover 113 In the accommodating cavity, the signal processing and measurement and control circuit 140 is not exposed to the outside of the barrel 110 and is easily affected or damaged.
  • the cover plate 150 can be connected to the bottom of the back side of the back cover 113, so that the signal processing and measurement and control circuit 140 is located at the bottom of the back side of the back cover 113, so as to be in contact with the radiation antenna 122 placed at the bottom of the heating chamber (detailed later) Description) Electrical connection.
  • the back plate 151 of the cover plate 150 opposite to the back cover 113 is provided with a through hole 152 to allow the heat generated by the signal processing and measurement and control circuit 140 to be dissipated through the through hole 152. Therefore, it is ensured that the signal processing and measurement and control circuit 140 is in a relatively closed space, and it is also ensured that the signal processing and measurement and control circuit 140 can normally dissipate heat.
  • the cover plate 150 may further include a circumferential side plate 153 connected to the rear cover 113.
  • Fig. 5 is a schematic structural diagram of a heating device according to an embodiment of the present invention applied to a refrigerator
  • Fig. 6 is a schematic enlarged view of part A in Fig. 5.
  • the heating device 10 when the heating device 10 is applied to the refrigerator 1 and placed in the storage compartment of the refrigerator 1, the rear plate 151 of the cover plate 150 is adjacent to the air duct 22 of the refrigerator 1, and the rear plate 151 is The through hole 152 is connected to the air supply duct 22 to quickly cool the signal processing and measurement and control circuit 140 through the cooling air flow in the air supply duct 22.
  • the through hole 152 on the cover plate 150 communicates with the air supply duct 22 of the refrigerator, so that the receiving cavity where the signal processing and measurement and control circuit 140 is located can be connected to the air supply duct 22.
  • the cooling airflow in the air supply duct 22 can be used to quickly dissipate heat and cool the heating components (such as the inductor 143) of the signal processing and measurement and control circuit 140, ensuring the performance of the signal processing and measurement and control circuit 140 It is not affected by high temperature, thereby improving the heating efficiency and heating effect of the heating device 10.
  • the area of the air supply duct 22 opposite to the cover plate 150 may be provided with a plurality of air ports 221, which communicate with the through holes 152 on the cover plate 150, so that the signal processing and measurement control circuit 140 is located.
  • the cavity is in communication with the air supply duct 22, so that the cooling air flow in the air supply duct 22 is allowed to flow to the accommodating cavity to dissipate heat and reduce the temperature of the signal processing and measurement control circuit 140.
  • the through hole 152 on the cover plate 150 can be divided into an air inlet and an air outlet, and the air outlet on the air supply duct 22 can be divided into an air inlet and a return air outlet.
  • the air inlet on the air supply duct 22 communicates with the air inlet on the cover plate 150, and the return air outlet on the air duct 22 communicates with the return air hole on the cover plate 150.
  • the air inlet and return air holes on the cover plate 150 can be arranged separately, for example, they can be respectively located in the left and right areas of the rear plate 151, so that the air inlet and the return air do not interfere with each other.
  • the signal processing and measurement and control circuit 140 can be integrated on a circuit board 141 to facilitate the installation and maintenance of the signal processing and measurement and control circuit.
  • the circuit board 141 can be fixed to the rear surface of the back cover 113 by screws.
  • the signal processing and measurement and control circuit 140 may include an inductance support 142 arranged on the circuit board 141, an inductance coil 143 wound on the inductance support 142, a relay, a capacitor, and the like.
  • the circuit board 141 can be fixed to the rear surface of the rear cover 113 by the second screw 192 and kept flush with the rear cover 113.
  • the inductance coil 143 is used for coupling with the radiating antenna 122, so as to achieve the purpose of receiving signals quickly.
  • the back cover 113 is fastened to the bottom plate 112, the upper cover 111 and the two lateral side plates 114 by screws.
  • FIG. 7 is a schematic structural block diagram of a heating device according to an embodiment of the present invention.
  • the electromagnetic heating device further includes a power supply module 123.
  • the power supply module 123 can be configured to be electrically connected to the electromagnetic generation module 121 for electromagnetic generation.
  • the module 121 provides electrical energy, so that the electromagnetic generating module 121 generates electromagnetic wave signals.
  • the signal processing and measurement control circuit 140 may include a detection unit 147, a control unit 148, and a matching unit 149.
  • the detection unit 147 may be connected in series between the electromagnetic generation module 121 and the radiation antenna 122, and is configured to detect specific parameters of the incident wave signal and the reflected wave signal passing therethrough in real time.
  • the control unit 148 may be configured to obtain the specific parameter from the detection unit 147, and calculate the power of the incident wave and the reflected wave according to the specific parameter.
  • the specific parameter may be a voltage value and/or a current value.
  • the detection unit 147 may also be a power meter to directly measure the power of the incident wave and the reflected wave.
  • the control unit 148 may further calculate the electromagnetic wave absorption rate of the object to be processed according to the power of the incident wave and the reflected wave, and compare the electromagnetic wave absorption rate with a preset absorption threshold, and send adjustments to the matching unit 149 when the electromagnetic wave absorption rate is less than the preset absorption threshold.
  • the preset absorption threshold may be 60-80%, such as 60%, 70%, or 80%.
  • the matching unit 149 can be connected in series between the electromagnetic generating module 121 and the radiating antenna 122, and is configured to adjust the load impedance of the electromagnetic generating module 121 according to the adjustment instruction of the control unit 148, so as to improve the output impedance and load impedance of the electromagnetic generating module 121.
  • the degree of matching is to place foods with different fixed attributes (type, weight, volume, etc.) in the heating chamber 111, or more electromagnetic wave energy is radiated in the heating chamber 111 during the temperature change of the food, thereby increasing heating rate.
  • the matching unit 149 may include a matching module 1491, a matching module 1492 and a fixed-value inductor.
  • the matching module 1491 may include multiple parallel branches, and the input ends of the multiple branches may be configured to be electrically connected to the electromagnetic generating module 121.
  • the fixed value inductor may be connected in series between the output terminal of the matching module 1491 and the radiating antenna 122.
  • the matching module 1492 may also include multiple parallel branches, and the input ends of the multiple branches may be connected in series between the matching module 1491 and the fixed-value inductor, and the output ends may be set to ground.
  • two matching modules each including a plurality of parallel branches are connected in series between the electromagnetic generating module and the radiating component, and the end of the matching module far from the output terminal of the electromagnetic generating module is grounded, which can achieve several times Load combination of the sum of the number of parallel branches of two matching modules.
  • the cost is lower, the reliability is higher, and the corresponding speed is faster.
  • the cost is lower, the reliability is higher, and the adjustment range is wider.
  • each parallel branch of the matching module 1491 may include a fixed-value capacitor and a switch connected in series.
  • Each parallel branch of the matching module 1492 may include a fixed-value capacitor and a switch connected in series.
  • the multiple switches of the matching module 1491 and the matching module 1492 can be integrated into an array type switch assembly separately or together to facilitate the on-off control of the switches.
  • each parallel branch of the matching module 1492 may further include a fixed value whose one end is connected in series between the output terminal of the matching module 1491 and the radiation antenna 122 and the other end is electrically connected to the input terminal of the capacitor of the branch. Capacitors to improve the matching accuracy of the matching unit 149 and reduce errors.
  • FIG. 9 is a schematic structural exploded view of a door according to an embodiment of the present invention.
  • the door body 130 includes a metal end plate 131 for blocking the front opening to close the heating chamber, and a conductive connector 132 electrically connected to the metal end plate 131.
  • the conductive connector 132 is configured to at least The door 130 is electrically connected to the cylinder 110 when the door 130 is in the closed state closing the front side opening, so that the cylinder 110 and the door 130 form a continuously conductive shield when the door 130 is in the closed state.
  • the shielding body prevents electromagnetic waves from being emitted through the gap, effectively shielding electromagnetic radiation and eliminating the harm of electromagnetic radiation to the human body.
  • the conductive connecting member 132 may directly use metal bumps, conductive adhesive strips or other suitable conductive connecting members.
  • the conductive connecting member 132 may be in direct electrostatic contact with the front surface of the barrel 110, or may be in electrical contact with other structures of the barrel 110, such as sliding rails.
  • the metal end plate 131 of the door body 130 is electrically connected to the cylinder 110 for fastening the rear cover 113, the bottom plate 112, the upper cover 111 and the two lateral side plates 114 together
  • the screws are conductive. Therefore, after the heating function is turned on, the door 130 and the barrel 110 can form a continuous conductive shield, that is, a Faraday cage, which prevents electromagnetic waves from being emitted and effectively shields radiation.
  • the bottom edge of the rear cover 113 may be provided with a rear cover flange 1131 extending forward, and the rear cover flange 1131 is provided with a screw connection hole.
  • the rear cover flap 1131 is attached to the upper surface of the bottom plate 112.
  • the corresponding position of the bottom plate 112 is also provided with screw connection holes to pass through the screw connection holes on the rear cover flap 1131 and the bottom plate 112.
  • the first screw 191 fastens the rear cover 113 and the bottom plate 112 together.
  • the rear edge of at least one lateral side plate 114 is provided with a side plate flange 1141 extending to the middle, and the side plate flange 1141 is provided with a screw connection hole.
  • the side plate flange 1141 is attached to the front surface of the rear cover 113, and the corresponding position of the side edge of the rear cover 113 is also provided with screw connection holes, and the corresponding position of the side edge of the circuit board 141 is also provided with screws
  • the connection hole is used to fasten the circuit board 141, the back cover 113 and the lateral side plate 114 through the third screw 193 in the screw connection hole which is successively passed through the circuit board 141, the rear cover 113 and the side plate flange 1141. together.
  • Screw connection holes are respectively provided near the two lateral edges of the bottom plate 112, and the bottoms of the two lateral side plates 114 are also respectively provided with screw connection holes to pass through the screw connection holes near the lateral edges of the bottom plate 112 and the bottom of the lateral side plates 114 The screws fasten the bottom plate 112 and the two lateral side plates 114 together.
  • the heating device 10 further includes a drawer 160 for carrying objects to be processed.
  • the drawer 160 is connected to the rear side of the door 130 and is slidably arranged in the cylinder 110 through the access opening.
  • the door body 130 further includes a front cover 133 and a rear plate 134 arranged front and rear.
  • the rear plate 134 is integrally formed or fixedly connected with the drawer 160, and the metal end plate 131 is located between the front cover 133 and the rear plate 134.
  • a through hole 1341 may be opened on the rear end plate 134 to allow the conductive connecting member 132 to be exposed backward through the through hole 1341 to be electrically connected to the barrel 110.
  • the heating device 10 further includes a radome 170, which is arranged in the cylinder 110 and divides the heating chamber in the cylinder 110 into a heating chamber 1151 and an electrical chamber 1152, wherein the object to be processed and the radiation
  • the antenna 122 is respectively installed in the heating room 1151 and the electrical room 1152 to separate the object to be processed and the radiation antenna 122 to prevent the radiation antenna 122 from being exposed after the drawer 160 is pulled out and affect the user experience, and also to prevent the radiation antenna 122 from being dirty Or damage by accidental touch.
  • the radome 170 can be disposed at the bottom of the cylinder 110 and includes a partition 171 extending horizontally and a skirt 172 extending downward from the peripheral edge of the partition 171.
  • the skirt 172 can be fixedly connected to the cylinder 110.
  • the radiating antenna 122 can be fixed on the lower side of the partition plate by clamping or other suitable methods.
  • the radiating antenna 122 can also be used as a liquid metal material to be directly plated on the partition.
  • the radiation antenna 122 has a connector 1221 for electrically connecting with the signal processing and measurement control circuit 140, and the connector 1221 may be located at the end of the extension end of the radiation antenna 122.
  • the rear cover 113 is provided with a wire hole 1132, the connector 1221 of the radiating antenna 122 is exposed through the wire hole 1132 and is electrically connected to the circuit board 141 of the signal processing and measurement control circuit 140.
  • the signal processing and measurement and control circuit 140 is connected to the electromagnetic generating module 121 through the radio frequency cable 144 and the signal transmission cable 145.
  • the radio frequency cable 144 and the signal transmission cable 145 may extend from the circuit board 141.
  • the radio frequency signal generated by the electromagnetic generating module 121 can be transmitted to the circuit board 141 through the radio frequency cable 144, and then transmitted to the radiation antenna 122 through the circuit board 141.
  • the electromagnetic generating module 121 may be located outside the cylinder 110 to facilitate heat dissipation of the electromagnetic generating module 121 and prevent the heat generated by the electromagnetic generating module 121 from affecting the object to be processed.
  • the present invention also provides a refrigerator.
  • the refrigerator 1 of the present invention includes a box body 20, and at least one storage compartment 21 is defined in the box body 20.
  • the refrigerator 1 also includes a compartment door, a refrigeration system, and the like for opening and closing the access openings of each storage compartment respectively.
  • the refrigerator 1 further includes the heating device 10 described in any of the above embodiments, which is arranged in one of the storage compartments 21.
  • the object to be processed taken out of the freezer compartment of the refrigerator can be heated by the heating device 10, which has a better heating effect and is convenient to use.
  • the cabinet 20 also defines a compressor compartment 23 for preventing compressors.
  • the compressor compartment 23 is usually located at the bottom of the rear side of the box body 20 and is defined by the outer shell of the box body 20 and the bottom steel assembly.
  • the electromagnetic generating module 121 is disposed in the compressor compartment 23 and is connected to the signal processing and measurement control circuit 140 through the radio frequency cable 144 and the signal transmission cable 145, and is further electrically connected to the radiation antenna 122 through the signal processing and measurement control circuit 140.
  • a radio frequency support 180 is also provided in the compressor compartment 23, and the electromagnetic generating module 121 is supported on the radio frequency support 180.
  • the refrigerator 1 may be an air-cooled refrigerator (as well known to those skilled in the art, the air-cooled refrigerator refers to the evaporator 30 in the refrigeration system is arranged in the compartment sandwiched between the air duct cover and the inner wall of the storage room to supply air. In the air duct, the air supply fan 40 is used to force the air in the storage room to convectively exchange heat with the evaporator 30).
  • the refrigerator 1 may have a plurality of storage compartments.
  • the box body 10 may define two storage compartments, a refrigerating compartment located above and a freezing compartment located below.
  • the refrigerated compartment refers to a storage compartment with a storage temperature of 0 to 8°C for ingredients; a freezer compartment refers to a storage compartment with a storage temperature of -20 to -15°C for the ingredients.
  • the box body 10 further defines an air supply duct 22 for conveying the cooling air flow into the storage compartment 21.
  • the air supply duct 22 may include a refrigerating air supply duct and a freezing air supply duct.
  • the heating device 10 may be arranged in the refrigerating compartment, located under a shelf 211. And the rear side of the heating device 10 is adjacent to the refrigerating air duct.
  • the cover plate 150 of the heating device 10 can abut against the air duct wall of the refrigerating air duct, so that the through hole 152 on the cover plate 150 is communicated with the air outlet 221 of the refrigerating air duct, thereby facilitating the connection of the heating device 10
  • the signal processing and measurement control circuit 140 quickly dissipates heat.

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Abstract

一种加热装置及冰箱，加热装置包括：筒体，其内限定有用于放置待处理物的加热腔室；电磁发生模块，用于产生电磁波信号；辐射天线，与电磁发生模块电连接，以根据电磁波信号在加热腔室内产生相应频率的电磁波，从而对加热腔室内的待处理物进行加热；以及信号处理及测控电路，与电磁发生模块电连接，且设置于筒体的外部。本发明的加热装置将其信号处理及测控电路设置在筒体的外部，不占用筒体内部的加热腔室空间，大大增加了加热腔室内的可用空间大小，提高了加热腔室的空间利用率。同时，还可避免信号处理及测控电路在运行时产生的热量进入加热腔室内传递至待处理物，提高了加热的均匀性。

Description

加热装置及冰箱 技术领域
本发明涉及食品加热领域，特别是涉及一种加热装置及具有该加热装置的冰箱。
背景技术
食物在冷冻的过程中，食物的品质得到了保持，然而冷冻的食物在加工或食用前需要加热。为了便于用户冷冻和加热食物，现有技术一般通过在冰箱中设置加热装置或微波装置来加热食物。然而，通过加热装置来加热食物，一般需要较长的加热时间，且加热时间和温度不易掌握，容易造成食物的水分蒸发和汁液流失，使食物的质量受到损失。通过微波装置来加热食物，速度快、效率高，所以食物的营养成分损失很低，但是由于微波对水和冰的穿透和吸收有差别，且食物的内部物质分布不均匀，已融化的区域吸收的能量多，易产生加热不均匀和局部过热的问题。
为了避免上述问题，本申请的申请人在之前提出了一种加热效果较好的电磁加热方式，但是之前的电磁加热装置会占用太多加热空间，且电磁加热装置本身产生的热量不易散去，影响加热效果。
发明内容
本发明第一方面的一个目的旨在克服现有技术中的至少一个缺陷，提供一种加热空间较大、空间利用率高的加热装置。
本发明第一方面的另一个目的是提高加热装置加热的均匀性。
本发明第一方面的一个进一步的目的是对加热装置的发热部件快速地降温，以提高其加热效率和加热效果。
本发明第二方面的目的是提供一种具有上述加热装置的冰箱。
根据本发明的第一方面，本发明提供一种加热装置，其包括：
筒体，其内限定有用于放置待处理物的加热腔室；
电磁发生模块，用于产生电磁波信号；
辐射天线，与所述电磁发生模块电连接，以根据所述电磁波信号在所述加热腔室内产生相应频率的电磁波，从而加热所述加热腔室内的待处理物； 以及
信号处理及测控电路，与所述电磁发生模块电连接，且设置于所述筒体的外部。
可选地，所述筒体由上盖、底板、后盖以及两个横向侧板围成，以使得其内限定的所述加热腔室具有前侧开口；
所述加热装置还包括门体，用于开闭所述前侧开口；且
所述信号处理及测控电路位于所述后盖的后侧。
可选地，所述后盖的后侧设有罩板，所述罩板与所述后盖之间限定有容纳腔，所述信号处理及测控电路设置于所述容纳腔中；且
所述罩板的与所述后盖相对的后板上开设有通孔，以允许所述信号处理及测控电路产生的热量通过所述通孔散发出去。
可选地，所述加热装置放置于冰箱的储物间室后，所述罩板的后板与所述冰箱的送风风道相邻，且所述后板上的通孔与所述送风风道相连通，以通过所述送风风道内的冷却气流对所述信号处理及测控电路快速降温。
可选地，所述信号处理及测控电路集成于一块电路板上。
可选地，所述电路板通过螺钉固定在所述后盖的后向表面，所述后盖通过螺钉与所述底板、所述上盖和两个所述横向侧板紧固连接。
可选地，所述门体包括用于封堵所述前侧开口以封闭所述加热腔室的金属端板以及与所述金属端板电连接的导电连接件，所述导电连接件配置成至少在所述门体处于封闭所述前侧开口的关闭状态时与所述筒体电性连接，以在所述门体处于关闭状态时使得所述筒体和所述门体形成连续导电的屏蔽体。
可选地，所述加热装置还包括：
天线罩，设置于所述筒体中，并将所述筒体的内部空间分隔为加热室和电器室，其中待处理物和所述辐射天线分别设置于所述加热室和所述电器室。
根据本发明的第二方面，本发明还提供一种冰箱，其包括：
箱体，其内限定有至少一个储物间室；以及
上述任一所述的加热装置，设置于其中一个所述储物间室中。
可选地，所述箱体内还限定有用于放置压缩机的压缩机仓；且
所述加热装置的电磁发生模块设置于所述压缩机仓内，并通过射频线缆和信号传输线缆与所述信号处理及测控电路相连，进而通过所述信号处理及 测控电路与所述天线极板电连接。
本发明的加热装置利用射频加热方式对待处理物进行加热，加热效果较好。并且，信号处理及测控电路设置在筒体的外部，不占用筒体内部的加热腔室空间，大大增加了加热腔室内的可用空间大小，提高了加热腔室的空间利用率。
同时，信号处理及测控电路设置在筒体的外部，还可避免信号处理及测控电路在运行时产生的热量(例如信号处理及测控电路的电感散发的热量)进入加热腔室内传递至待处理物，提高了加热的均匀性。
进一步地，信号处理及测控电路设置在筒体后盖与一罩板之间形成的容纳腔内，且罩板上的通孔与冰箱送风风道相连通，可使得容纳腔与送风风道连通。由此，可利用送风风道内的温度较低的冷却气流对信号处理及测控电路的发热部件进行快速地散热降温，确保了信号处理及测控电路的性能不受高温影响，从而提高了加热装置的加热效率和加热效果。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的加热装置的示意性结构图；
图2是根据本发明一个实施例的加热装置的示意性剖视图；
图3是根据本发明一个实施例的加热装置的示意性分解图；
图4是根据本发明一个实施例的加热装置隐去部分筒体结构之后的示意性结构图；
图5是根据本发明一个实施例的加热装置应用于冰箱的示意性结构图；
图6是图5中部分A的示意性放大图；
图7是根据本发明一个实施例的加热装置的示意性结构框图；
图8是本发明一个实施例的匹配单元的电路原理图；
图9是根据本发明一个实施例的门体的示意性结构分解图。
具体实施方式
本发明首先提供一种加热装置，用于加热待处理物。加热装置可放置于冰箱类冷藏冷冻装置中使用，也可以单独使用。
图1是根据本发明一个实施例的加热装置的示意性结构图，图2是根据本发明一个实施例的加热装置的示意性剖视图，图3是根据本发明一个实施例的加热装置的示意性分解图，图4是根据本发明一个实施例的加热装置隐去部分筒体结构之后的示意性结构图。为了便于观察和理解，图3和图4中的加热装置处于倒置状态，图3和图4中的前、后、上、下方位表示加热装置处于正常使用状态时的方位。参见图1至图3，本发明的加热装置10包括筒体110、电磁发生模块121(参见图5)、辐射天线122和信号处理及测控电路140。
筒体110内限定有用于防止待处理物的加热腔室。电磁发生模块121用于产生电磁信号。辐射天线122与电磁发生模块121电连接，以根据电磁发生模块121产生的电磁信号在加热腔室内产生相应频率的电磁波，从而对加热腔室内的待处理物进行加热。信号处理及测控电路140与电磁发生模块121电连接，且设置于筒体110的外部，用于对电磁发生模块121产生的电磁波的特定特征进行检测和调节。电磁波的特定特征可包括入射波的功率和反射波的功率。本发明的加热装置10利用射频加热方式对待处理物进行加热，加热效果较好。电磁发生模块121产生的电磁波可以为射频波、微波等具有合适波长的电磁波。这种利用电磁波对待处理物进行加热的方式加热效率高、加热均匀且可保证食物品质。
特别地，信号处理及测控电路140设置于筒体110的外部，不占用筒体110内部的加热腔室空间，大大增加了加热腔室内的可用空间大小，提高了加热腔室的空间利用率。同时，信号处理及测控电路140设置在筒体110的外部，还可避免信号处理及测控电路140在运行时产生的热量(例如信号处理及测控电路的电感散发的热量)进入加热腔室内传递至待处理物，提高了加热的均匀性。
进一步地，筒体110可由金属制成，以作为接收极接收辐射天线122产生的电磁波。
在一些实施例中，筒体110由上盖111、底板112、后盖113以及两个横向侧板114围成，以使得其内限定的加热腔室具有前侧开口。进一步地，加热装置10还包括门体130，用于开闭加热腔室的前侧开口。门体130可通过适当的方法与筒体110安装在一起。
进一步地，信号处理及测控电路140位于后盖113的后侧。也就是说，信号处理及测控电路140位于后盖113的外侧。由此，可避免信号处理及测控电路140暴露于前侧或左右两侧，提高了加热装置10的视觉美观效果。同时，当加热装置10放置在冰箱以后，可避免信号处理及测控电路140占用冰箱储物间室的侧部、上部或下部的空间，还可使信号处理及测控电路140更加靠近冰箱后侧的送风风道，利于散热。
在一些实施例中，后盖113的后侧可设有一罩板150，罩板150与后盖113之间限定有容纳腔，信号处理及测控电路140设置于罩板150与后盖113之间的容纳腔中，以避免信号处理及测控电路140暴露于筒体110外部易受影响或损坏。具体地，罩板150可连接在后盖113的后侧底部，以使得信号处理及测控电路140位于后盖113的后侧底部，以便于与置于加热腔室底部的辐射天线122(后续详述)电连接。
进一步地，罩板150的与后盖113相对的后板151上开设有通孔152，以允许信号处理及测控电路140产生的热量通过通孔152散发出去。由此，既保证了信号处理及测控电路140处于相对封闭的空间内，又保证了信号处理及测控电路140能够正常散热。罩板150还可包括与后盖113相连接的周向侧板153。
图5是根据本发明一个实施例的加热装置应用于冰箱的示意性结构图，图6是图5中部分A的示意性放大图。在一些实施例中，当加热装置10应用于冰箱1，放置于冰箱1的储物间室后，罩板150的后板151与冰箱1的送风风道22相邻，且后板151上的通孔152与送风风道22相连通，以通过送风风道22内的冷却气流对信号处理及测控电路140快速降温。罩板150上的通孔152与冰箱送风风道22相连通，可使得信号处理及测控电路140所在的容纳腔与送风风道22连通。由此，可利用送风风道22内的温度较低的冷却气流对信号处理及测控电路140的发热部件(例如电感线圈143)进行快速地散热降温，确保了信号处理及测控电路140的性能不受高温影响，从而提高了加热装置10的加热效率和加热效果。
具体地，送风风道22与罩板150相对的区域可开设有多个风口221，该多个风口与罩板150上的通孔152相连通，以使得信号处理及测控电路140所在的容纳腔与送风风道22连通，从而允许送风风道22内的冷却气流流向容纳腔对信号处理及测控电路140进行散热降温。进一步地，罩板150上的通孔152可分成进风孔和出风孔，送风风道22上的风口可分成进风口和回 风口。送风风道22上的进风口与罩板150上的进风孔相连通，送风风道22上的回风口与罩板150上的回风孔相连通。罩板150上的进风孔与回风孔可分开设置，例如可分别位于后板151的左右两个区域内，实现了进风和回风互不干扰。
在一些实施例中，信号处理及测控电路140可集成于一块电路板141，以便于信号处理及测控电路的安装及维修。
进一步地，电路板141可通过螺钉固定在后盖113的后向表面。具体地，信号处理及测控电路140可包括设置于电路板141上的电感支架142、缠绕在电感支架142上的电感线圈143、继电器和电容等。电路板141可通过第二螺钉192固定在后盖113的后向表面，并与后盖113保持平齐。电感线圈143用于与辐射天线122产生耦合作用，从而达到快速接收信号的目的。后盖113通过螺钉与底板112、上盖111和两个横向侧板114紧固连接。
图7是根据本发明一个实施例的加热装置的示意性结构框图，在一些实施例中，电磁加热装置还包括供电模块123，供电模块123可设置为与电磁发生模块121电连接，以为电磁发生模块121提供电能，进而使电磁发生模块121产生电磁波信号。
信号处理及测控电路140可包括检测单元147、控制单元148、和匹配单元149。
检测单元147可串联在电磁发生模块121与辐射天线122之间，并配置为实时检测经过其的入射波信号和反射波信号的特定参数。
控制单元148可配置为从检测单元147获取该特定参数，根据该特定参数计算入射波和反射波的功率。在本发明中，特定参数可为电压值和/或电流值。检测单元147也可为功率计，以直接测得入射波和反射波的功率。
控制单元148可进一步根据入射波和反射波的功率计算待处理物的电磁波吸收率，并将电磁波吸收率与预设吸收阈值比较，当电磁波吸收率小于预设吸收阈值时向匹配单元149发送调节指令。预设吸收阈值可为60～80％，例如60％、70％、或80％。
匹配单元149可串联在电磁发生模块121与辐射天线122之间，并配置为根据控制单元148的调节指令对电磁发生模块121的负载阻抗进行调节，提高电磁发生模块121的输出阻抗和负载阻抗的匹配度，以在加热室111内放置有固定属性(种类、重量、体积等)不同的食物、或食物在温度变化过 程中均有较多的电磁波能量被辐射在加热室111内，进而提高加热速率。
图8是本发明一个实施例的匹配单元的电路原理图。参见图8，匹配单元149可包括匹配模块1491、匹配模块1492和一个定值电感器。其中，匹配模块1491可包括多个并联支路，且多个支路的输入端可设置为与电磁发生模块121电连接。定值电感器可串联在匹配模块1491的输出端与辐射天线122之间。匹配模块1492也可包括多个并联支路，且多个支路的输入端可串联在匹配模块1491与定值电感器之间，输出端可设置为接地。
本发明的电磁波发生装置由于在电磁发生模块和辐射组件之间串联两个分别包括多个并联支路的匹配模块，并使其中远离电磁发生模块的输出端的匹配模块一端接地，可实现数倍于两个匹配模块的并联支路数量总和的负载组合。相比于现有技术中通过机械电动马达结构调整辐射单元与接收极间距的技术方案，不仅成本更低、而且可靠性更高、相应速度更快。相比于现有技术中采用可变电容器和可变电感器调节负载阻抗的技术方案，不仅成本更低，而且可靠性更高，调节范围更广。
在一些实施例中，匹配模块1491的每个并联支路可包括串联的一个定值电容器和一个开关。匹配模块1492的每个并联支路可包括串联的一个定值电容器和一个开关。
匹配模块1491和匹配模块1492的多个开关可分别或一同集成为阵列式开关组件，以便于开关的通断控制。
在一些实施例中，匹配模块1492的每个并联支路还可包括一端串联在匹配模块1491的输出端与辐射天线122之间且另一端与该支路的电容器的输入端电连接的定值电容器，以提高匹配单元149的匹配精度，减少误差。
图9是根据本发明一个实施例的门体的示意性结构分解图，为了便于理解，图9中还示出了抽屉160。在一些实施例中，门体130包括用于封堵上述前侧开口以封闭加热腔室的金属端板131以及与金属端板131电连接的导电连接件132，导电连接件132配置成至少在门体130处于封闭上述前侧开口的关闭状态时与筒体110电性连接，以在门体130处于关闭状态时使得筒体110和门体130形成连续导电的屏蔽体。由此，即使门体130处于关闭状态时，筒体110与门体130之间仍然存在间隙的情况下仍然能够保证筒体110与门体130之间形成电连接，从而在加热时形成连续导电的屏蔽体，阻止了电磁波经该间隙射出，有效地屏蔽了电磁辐射、消除了电磁辐射对人体的伤 害。
具体地，导电连接件132可直接采用金属凸块、导电胶条或其他合适的能够导电的连接件。导电连接件132可以直接与筒体110的前向表面静电接触，也可以与筒体110的其他结构例如滑轨电性接触。
在门体130处于关闭状态下，门体130的金属端板131与筒体110电性连接，用于将后盖113、底板112、上盖111和两个横向侧板114紧固连接在一起的螺钉具有导电性，因此，在加热功能开启后，门体130与筒体110可形成连续导电的屏蔽体，也即是形成法拉第笼，从而阻止电磁波射出，有效屏蔽辐射。
具体地，后盖113的底部边缘可设有向前延伸的后盖翻边1131，后盖翻边1131上开设有螺钉连接孔。后盖翻边1131贴设于底板112的上表面，相应地，底板112的相应位置处也开设有螺钉连接孔，以通过穿设在后盖翻边1131和底板112上的螺钉连接孔中的第一螺钉191将后盖113与底板112紧固连接在一起。至少一个横向侧板114的后侧边缘设有向中部延伸的侧板翻边1141，侧板翻边1141上开设有螺钉连接孔。侧板翻边1141贴设于后盖113的前向表面，且后盖113的侧部边缘的相应位置处也开设有螺钉连接孔，电路板141的侧部边缘的相应位置处也开设有螺钉连接孔，以通过依次穿设在电路板141、后盖113和侧板翻边1141上的螺钉连接孔中的第三螺钉193将电路板141、后盖113和横向侧板114紧固连接在一起。底板112的两个横向边缘附近分别开设螺钉连接孔，两个横向侧板114的底部也分别开设螺钉连接孔，以通过穿设在底板112横向边缘附近和横向侧板114底部的螺钉连接孔中的螺钉将底板112和两个横向侧板114紧固连接在一起。
加热装置10还包括用于承载待处理物的抽屉160，抽屉160连接在门体130的后侧，并经取放开口可推拉地设置于筒体110中。
进一步地，门体130还包括前后设置的前端盖133和后端板134，后端板134与抽屉160一体成型或固定连接，金属端板131位于前端盖133和后端板134之间。由此，用户在操作门体130时不会触碰到金属端板131，进一步提高了加热装置10使用的安全性。后端板134上可开设有通孔1341，以允许导电连接件132通过通孔1341向后暴露出，从而与筒体110电性连接。
在一些实施例中，加热装置10还包括天线罩170，其设置于筒体110中，并将筒体110内的加热腔室分隔为加热室1151和电器室1152，其中， 待处理物和辐射天线122分别设置于加热室1151和电器室1152，以将待处理物和辐射天线122分隔开，防止抽屉160拉出后辐射天线122外露影响用户的使用体验，同时也避免辐射天线122脏污或误触损坏。
进一步地，天线罩170可设置于筒体110内的底部，且包括水平延伸的隔板171和由隔板171的四周边缘向下延伸的裙部172。裙部172可与筒体110固定连接。辐射天线122可通过卡接或其他合适的方式固定在隔板的下侧。辐射天线122也可以作为一种液体的金属材料直接电镀在隔板上。
辐射天线122具有用于与信号处理及测控电路140电连接的接头1221，接头1221可处于辐射天线122延伸端的端部。后盖113上开设有过线孔1132，辐射天线122的接头1221经过线孔1132暴露出，并与信号处理及测控电路140的电路板141电连接。信号处理及测控电路140通过射频线缆144和信号传输线缆145与电磁发生模块121相连。射频线缆144和信号传输线缆145可从电路板141上伸出。电磁发生模块121产生的射频信号可通过射频线缆144传递至电路板141，然后再通过电路板141传递至辐射天线122。
电磁发生模块121可位于筒体110的外部，以便于电磁发生模块121散热，并避免电磁发生模块121产生的热量对待处理物产生影响。
基于上述任一实施例的加热装置10，本发明还提供一种冰箱。参见图5和图6，本发明的冰箱1包括箱体20，箱体20内限定有至少一个储物间室21。冰箱1还包括用于分别开闭各个储物间室的取放口的间室门体、制冷系统等。
特别地，冰箱1还包括上述任一实施例所描述的加热装置10，其设置于其中一个储物间室21中。从冰箱冷冻室取出的待处理物可通过加热装置10来加热，加热效果较好，使用方便。
在一些实施例中，箱体20内还限定有用于防止压缩机的压缩机仓23。压缩机仓23通常位于箱体20的后侧底部，并由箱体20的外壳和底钢总成限定而成。电磁发生模块121设置于压缩机仓23内，并通过射频线缆144和信号传输线缆145与信号处理及测控电路140相连，进而通过信号处理及测控电路140与辐射天线122电连接。
进一步地，压缩机仓23内还设有射频支架180，电磁发生模块121支撑在射频支架180上。
进一步地，冰箱1可以为风冷冰箱(本领域技术人员均熟知地，风冷冰箱是指制冷系统中的蒸发器30设置在风道盖板和储物间室内壁夹置的间室 送风风道中，并利用送风风扇40强制储物间室内的空气与蒸发器30对流换热的冰箱)。冰箱1可具有多个储物间室，例如箱体10内可限定有处于上方的冷藏间室和处于下方的冷冻间室这两个储物间室。冷藏间室是指对食材的保藏温度为0～8℃的储物间室；冷冻间室是指对食材的保藏温度为-20～-15℃的储物间室。箱体10还限定有用于向储物间室21中输送冷却气流的送风风道22，送风风道22可包括冷藏送风风道和冷冻送风风道。加热装置10可设置于冷藏间室中，位于一置物架211的下方。且加热装置10的后侧邻近冷藏送风风道。加热装置10的罩板150可抵接于冷藏送风风道的风道壁，以便于罩板150上的通孔152与冷藏送风风道的风口221相连通，从而便于对加热装置10的信号处理及测控电路140快速地散热。
本领域技术人员应理解，在没有特殊说明的情况下，本发明实施例中所称的“顶”、“底”、“内”、“外”、“横”、“前”、“后”等用于表示方位或位置关系的用语是以加热装置10和冰箱1的实际使用状态为基准而言的，这些用语仅是为了便于描述和理解本发明的技术方案，而不是指示或暗示所指的装置或部件必须具有特定的方位，因此不能理解为对本发明的限制。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种加热装置，包括：
    筒体，其内限定有用于放置待处理物的加热腔室；
    电磁发生模块，用于产生电磁波信号；
    辐射天线，与所述电磁发生模块电连接，以根据所述电磁波信号在所述加热腔室内产生相应频率的电磁波，从而加热所述加热腔室内的待处理物；以及
    信号处理及测控电路，与所述电磁发生模块电连接，且设置于所述筒体的外部。
  2. 根据权利要求1所述的加热装置，其中，
    所述筒体由上盖、底板、后盖以及两个横向侧板围成，以使得其内限定的所述加热腔室具有前侧开口；
    所述加热装置还包括门体，用于开闭所述前侧开口；且
    所述信号处理及测控电路位于所述后盖的后侧。
  3. 根据权利要求2所述的加热装置，其中，
    所述后盖的后侧设有罩板，所述罩板与所述后盖之间限定有容纳腔，所述信号处理及测控电路设置于所述容纳腔中；且
    所述罩板的与所述后盖相对的后板上开设有通孔，以允许所述信号处理及测控电路产生的热量通过所述通孔散发出去。
  4. 根据权利要求3所述的加热装置，其中，
    所述加热装置放置于冰箱的储物间室后，所述罩板的后板与所述冰箱的送风风道相邻，且所述后板上的通孔与所述送风风道相连通，以通过所述送风风道内的冷却气流对所述信号处理及测控电路快速降温。
  5. 根据权利要求2所述的加热装置，其中，
    所述信号处理及测控电路集成于一块电路板上。
  6. 根据权利要求5所述的加热装置，其中，
    所述电路板通过螺钉固定在所述后盖的后向表面，所述后盖通过螺钉与 所述底板、所述上盖和两个所述横向侧板紧固连接。
  7. 根据权利要求2所述的加热装置，其中，
    所述门体包括用于封堵所述前侧开口以封闭所述加热腔室的金属端板以及与所述金属端板电连接的导电连接件，所述导电连接件配置成至少在所述门体处于封闭所述前侧开口的关闭状态时与所述筒体电性连接，以在所述门体处于关闭状态时使得所述筒体和所述门体形成连续导电的屏蔽体。
  8. 根据权利要求2所述的加热装置，其中，还包括：
    天线罩，设置于所述筒体中，并将所述筒体的内部空间分隔为加热室和电器室，其中待处理物和所述辐射天线分别设置于所述加热室和所述电器室。
  9. 一种冰箱，包括：
    箱体，其内限定有至少一个储物间室；以及
    权利要求1-8任一所述的加热装置，设置于其中一个所述储物间室中。
  10. 根据权利要求9所述的冰箱，其中，
    所述箱体内还限定有用于放置压缩机的压缩机仓；且
    所述加热装置的电磁发生模块设置于所述压缩机仓内，并通过射频线缆和信号传输线缆与所述信号处理及测控电路相连，进而通过所述信号处理及测控电路与所述天线极板电连接。
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US20220099361A1 (en) 2022-03-31
EP3910272A1 (en) 2021-11-17

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