WO2016107233A1 - 微波炉 - Google Patents

微波炉 Download PDF

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Publication number
WO2016107233A1
WO2016107233A1 PCT/CN2015/090803 CN2015090803W WO2016107233A1 WO 2016107233 A1 WO2016107233 A1 WO 2016107233A1 CN 2015090803 W CN2015090803 W CN 2015090803W WO 2016107233 A1 WO2016107233 A1 WO 2016107233A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
fan
air outlet
cavity
microwave oven
Prior art date
Application number
PCT/CN2015/090803
Other languages
English (en)
French (fr)
Inventor
赵在满
凌奇宏
毛勇男
安明波
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
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
Priority claimed from CN201420866233.5U external-priority patent/CN204438235U/zh
Priority claimed from CN201420868026.3U external-priority patent/CN204371723U/zh
Priority claimed from CN201410853783.8A external-priority patent/CN104676677B/zh
Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Priority to EP15874918.4A priority Critical patent/EP3242086B1/en
Priority to JP2017535403A priority patent/JP2018506688A/ja
Priority to KR1020177021278A priority patent/KR101855199B1/ko
Priority to CA2966939A priority patent/CA2966939C/en
Priority to ES15874918T priority patent/ES2778749T3/es
Publication of WO2016107233A1 publication Critical patent/WO2016107233A1/zh

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4246—Fan casings comprising more than one outlet

Definitions

  • the present invention relates to the field of home appliances, and in particular to microwave ovens.
  • the existing microwave oven uses a cold air from the outside to sequentially cool a plurality of electrical components, which results in a long path of the cooling air passage of the existing microwave oven, a long time for the air to circulate once, and a cooling effect on the electrical components is poor. That is, the existing microwave oven has poor heat dissipation performance.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the present invention proposes a microwave oven having the advantages of good cooling effect and good heat dissipation performance.
  • a microwave oven includes: a casing having a cooling air inlet and a cooling air outlet; a cavity having a chamber, the cavity being embedded in the casing and having a front end open Forming a receiving space between the rear plate of the cavity and the rear plate of the outer casing, and an air inlet duct communicating with the cooling air inlet is formed between the side plate of the outer casing and the side plate of the cavity a first electrical component and a second electrical component, each of the first electrical component and the second electrical component being disposed in the receiving space; and a fan, the fan being disposed in the receiving space, the fan
  • the first air inlet, the first air outlet and the second air outlet are oppositely disposed, wherein the first air inlet and the first air outlet
  • the tuyes communicate with each other to form a first blowing passage
  • the second air inlet communicates with the second air outlet to form a second blowing passage
  • the first blowing passage and the second blowing passage are mutually independent, the fan Cooling the first through the
  • the microwave oven according to the embodiment of the invention has the advantages of good cooling effect and good heat dissipation performance.
  • microwave oven according to the above embodiment of the present invention may further have the following additional technical features:
  • the fan includes: a housing having a receiving cavity therein, the housing being provided with the first air inlet, the second inlet communicating with the receiving cavity a tuyere, the first air outlet and the second air outlet; a partition, the partition is disposed in the receiving cavity, and the first surface of the partition is opposite to the first air inlet, a second surface of the partition opposite the second air inlet; a motor for driving the diaphragm to rotate, the motor being coupled to the partition; a plurality of first blades, a plurality of the first fans Leaves are circumferentially spaced apart from the baffle a first surface, each of the first blades extending in a direction parallel to a rotational axis of the partition; and a plurality of second blades, a plurality of the second blades along the partition Circumferentially spaced apart on the second surface of the baffle, each of the second vanes extending in a direction parallel to the axis of rotation of the baffle.
  • the housing includes: a fan bracket, the fan bracket is provided with the second air inlet; a fan inner cover, the fan inner cover is disposed on the fan bracket, Forming the second air outlet between the fan inner cover and the fan bracket, the fan inner cover is provided with a avoidance port; and a fan cover, wherein the fan cover is disposed in the fan inner cover and the fan bracket The first air outlet is formed between the fan cover and the fan inner cover, and the first air inlet is disposed on the fan cover.
  • a portion of each of the first blades is located inside the first air inlet, and a remaining portion of each of the first blades is located outside the first air inlet, each A portion of the second blades is located inside the second air inlet, and the remaining portion of each of the second blades is located outside the second air inlet.
  • a first sub-accommodating cavity is formed between the fan inner cover and the fan cover, and a plurality of the first blades are located in the first sub-accommodating cavity, the fan inner cover
  • a second sub-receiving cavity is formed with the fan bracket and a plurality of the second blades are located in the second sub-receiving cavity.
  • the partition is located in the same plane as the fan inner cover, and the partition is located in the escape opening.
  • the fan bracket includes a fan bracket body and a first upper flange connected to an upper edge of the fan bracket body, and the first upper flange is provided with the receiving cavity a third air outlet;
  • the fan inner cover includes a fan inner cover body, a second upper flange, a left flange and a right flange, and the second upper flange is connected to an upper edge of the fan inner cover body, a through hole communicating with the accommodating cavity and the third air outlet is disposed on the second upper flange, and the left flange and the right flange are oppositely disposed on the fan inner cover body.
  • the second air outlet is formed between the fan inner cover body, the left flange, the right flange, and the fan bracket body.
  • the opening direction of the first air outlet is perpendicular to the opening direction of the second air outlet.
  • the housing is further provided with a third air outlet communicating with the receiving cavity, and an opening direction of the third air outlet is different from an opening direction of the first air outlet and The opening direction of the second air outlet, the second air inlet is in communication with the third air outlet to form a third air blowing passage, wherein the microwave oven further comprises a third electrical component, and the fan passes the third air blowing The duct cools the third electrical component.
  • the opening of the first air outlet is directed to the left or to the right, the first electrical component is located on the left or right side of the first air outlet, and the opening of the second air outlet Downward, the second electrical component is located below the second air outlet, the opening of the third air outlet is upward, and the third electrical component is located above the third air outlet.
  • the second electrical component is disposed on a bottom plate of the outer casing, and a top plate of the cavity A portion of the rear portion extends rearward beyond the rear plate of the cavity, and the third electrical component is disposed on the portion of the top plate of the cavity.
  • the rear plate of the cavity is provided with a chamber air inlet
  • the cavity is provided with a chamber air outlet
  • the microwave oven further comprises a front air guiding plate, the front air guiding plate One end is adjacent to the first air outlet and opposite to the first air outlet, and the front air deflector extends away from the first air outlet, wherein the front air deflector and the rear panel of the cavity Forming a first air passage communicating with the air inlet of the chamber, and forming a second air passage opposite to the first electrical component at a rear of the front air deflector.
  • the microwave oven further includes a rear air deflector, one end of the rear air deflector is adjacent to the first air outlet, and the rear air deflector is away from the first air outlet. Extending, the second air duct is formed between the front air deflector and the rear air deflector.
  • the front air deflector includes: an air deflector body, the air deflector body extends in a left-right direction, and the air deflector body and the rear panel of the cavity form the a first air duct; and a curved plate, a front end of the curved plate is connected to the wind deflector body, the curved plate extends rearward from the wind deflector body, the wind deflector body, the The second air passage is formed between the curved plate and the rear air deflector.
  • the chamber air outlet is disposed on a top plate of the cavity
  • the microwave oven further includes an air hood
  • the air hood is disposed on a top plate of the cavity
  • a third air passage extending in the front-rear direction is formed between the air guiding hood and the top plate of the cavity, and a front portion of the third air passage is in communication with the air outlet of the chamber.
  • the cooling air inlet is provided on a bottom plate of the outer casing, and the cooling air inlet is located between a side plate of the outer casing and a side plate of the cavity, wherein the microwave oven is further A fourth electrical component is included, the fourth electrical component being located between a side panel of the outer casing and a side panel of the cavity.
  • the first electrical component is a magnetron
  • the second electrical component is a transformer
  • the third electrical component is a filter plate
  • the fourth electrical component is a high voltage capacitor
  • FIG. 1 is an exploded view of a fan in accordance with an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a fan according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a fan according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a fan according to an embodiment of the present invention.
  • FIG. 5 is a partial structural schematic view of a fan according to an embodiment of the present invention.
  • FIG. 6 is a partial structural schematic view of a fan according to an embodiment of the present invention.
  • FIG. 7 is a partial structural schematic view of a microwave oven according to an embodiment of the present invention.
  • FIG. 8 is a partial structural schematic view of a microwave oven according to an embodiment of the present invention.
  • FIG. 9 is a partial structural schematic view of a microwave oven according to an embodiment of the present invention.
  • FIG. 10 is a partial structural schematic view of a microwave oven according to an embodiment of the present invention.
  • FIG 11 is a partial structural schematic view of a microwave oven in accordance with an embodiment of the present invention.
  • a housing 101 a receiving cavity 1011, a first sub-accommodating cavity 10111, a second sub-accommodating cavity 10112,
  • a first air inlet 1012 a second air inlet 1013, a first air outlet 1014, a second air outlet 1015, a third air outlet 1016,
  • the cavity 20 the top plate 21, the rear plate 22, the side plate 23, the chamber air inlet 24, the chamber air outlet 25,
  • a microwave oven 1 according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1-11, a microwave oven 1 according to an embodiment of the present invention includes a housing 30, a cavity 20, a fan 10, a first electrical component 40, and a second electrical component 50.
  • the outer casing 30 is provided with a cooling air inlet 34 and a cooling air outlet.
  • the cavity 20 has a chamber in which the cavity 20 is nested and the front end of the cavity 20 is open.
  • An accommodation space 90 is formed between the rear plate 22 of the cavity 20 and the rear plate of the outer casing 30.
  • An air inlet duct 32 communicating with the cooling air inlet 34 is formed between a side panel (not shown) of the outer casing 30 and the side panel 23 of the cavity 20.
  • the first electrical component 40 and the second electrical component 50 are both disposed within the receiving space 90.
  • the fan 10 is disposed in the accommodating space 90.
  • the fan has a first air inlet 1012, a second air inlet 1013, a first air outlet 1014, and a second air outlet 1015.
  • the first air inlet 1012 and the second air inlet 1013 are oppositely disposed.
  • the first air inlet 1012 communicates with the first air outlet 1014 to form a first air blowing channel 1011
  • the second air inlet port 1013 is in communication with the second air outlet 1015 to form a second air blowing passage (not shown), and the first air blowing passage 1011 and the second air blowing passage are disposed independently of each other.
  • the fan 10 cools the first electrical component 40 through the first blowing passage 1011, and the fan 10 cools the second electrical component 50 through the second blowing passage.
  • the existing microwave oven uses a cold air from the outside to sequentially cool a plurality of electrical components, which results in a long path of the cooling air passage of the existing microwave oven, a long time for the air to circulate once, and a cooling effect on the electrical components is poor. That is, the existing microwave oven has poor heat dissipation performance.
  • external cold air enters the accommodating space 90 through the cooling air inlet 34 on the outer casing 30. Then, a part of the cold air enters the fan 10 through the first air inlet 1012 and the remaining cold air enters the fan 10 through the second air inlet 1013.
  • the fan 10 can blow out two separate cooling airflows, that is, the fan 10 simultaneously blows cold air from the first air outlet 1014 and the second air outlet 1015.
  • one cold wind flows along the first blowing passage 1011
  • the other cold wind flows along the second blowing passage.
  • the cold air blown from the first air outlet 1014 cools the first electric component 40
  • the cold air blown from the second air outlet 1015 cools the second electric component 50.
  • the wind passing through the first electrical component 40 and the second electrical component 50 can exit the microwave oven 1 through the cooling air outlet of the outer casing 30.
  • the fan 10 can simultaneously cool the first electrical component 40 and the second electrical component 50, respectively.
  • the microwave oven 1 according to an embodiment of the present invention has a plurality of cooling ducts, and the first electric component 40 and the second electric component 50 can be simultaneously cooled, respectively.
  • the path of each cooling duct of the microwave oven 1 can be made shorter, the time required for the air to circulate once is greatly shortened, and the cooling effect on the first electric component 40 and the second electric component 50 can be greatly improved.
  • the heat dissipation performance of the microwave oven 1 is greatly improved, thereby greatly improving the performance of the microwave oven 1, and greatly prolonging the service life of the microwave oven 1.
  • the microwave oven 1 can simultaneously cool the first electrical component 40 and the second electrical component 50 by providing the fan 10 having the first air blowing passage 1011 and the second air blowing passage, and can be greatly shortened.
  • the path of the cooling ducts that cool the first electrical component 40 and the second electrical component 50 greatly reduces the time required for air to circulate once. Thereby, the cooling effect on the first electrical component 40 and the second electrical component 50 can be greatly improved, thereby greatly improving the heat dissipation performance of the microwave oven 1, thereby greatly improving the performance of the microwave oven 1, and greatly extending the microwave oven 1 The service life.
  • the microwave oven 1 according to the embodiment of the present invention has the advantages of good cooling effect, good heat dissipation performance, good use performance, long service life, and the like.
  • a fan 10 includes a housing 101, a partition 102, a motor 103 for driving the rotation of the partition 102, a plurality of first blades 104, and a plurality of second fans.
  • Leaf 105 Leaf 105.
  • the housing 101 has a receiving cavity 1011.
  • the housing 101 is provided with a first air inlet 1012, a second air inlet 1013, a first air outlet 1014 and a second air outlet 1015.
  • the first air inlet 1012 is connected to the receiving cavity 1011. It is disposed opposite to the second air inlet 1013.
  • the partition 102 is disposed in the accommodating chamber 1011. The first surface of the partition 102 is opposite to the first air inlet 1012, and the second surface of the partition 102 is opposite to the second air inlet 1013.
  • a plurality of first blades 104 are spaced apart from each other along the circumferential direction of the partition 102 on the first surface of the partition 102, and each of the first blades 104 extends in a direction parallel to the rotational axis of the partition 102.
  • a plurality of second blades 105 are spaced apart from each other along the circumferential direction of the partition 102 on the second surface of the partition 102, and each of the second blades 105 extends in a direction parallel to the rotational axis of the partition 102.
  • the motor 103 is coupled to the partition 102 to drive the partition 102 to rotate, thereby driving the plurality of first blades 104 and the plurality of second blades 105 to rotate.
  • the fan 10 according to the embodiment of the present invention can simultaneously blow out two independent cold airs by providing the first air outlet 1014 and the second air outlet 1015 on the casing 101.
  • the two electrical components can be separately cooled at the same time, so that the cooling effect can be improved.
  • the fan 10 according to the embodiment of the present invention has an advantage that the cooling effect is good.
  • the housing 101 includes a fan bracket 1017, a fan inner cover 1018, and a fan cover 1019.
  • the fan inlet 1017 is provided with a second air inlet 1013 and a third air outlet 1016.
  • the fan inner cover 1018 is disposed on the fan bracket 1017, and the second air outlet 1015 is formed between the fan inner cover 1018 and the fan bracket 1017.
  • the fan inner cover 1018 is provided with a relief port 10181.
  • the fan cover 1019 is disposed on at least one of the fan inner cover 1018 and the fan bracket 1017.
  • a first air outlet 1014 is formed between the fan cover 1019 and the fan inner cover 1018, and a first air inlet 1012 is disposed on the fan cover 1019. Thereby, the structure of the fan 10 can be made more reasonable.
  • the fan cover 1019 is provided on the fan inner cover 1018.
  • a first sub-accommodating cavity 10111 is formed between the fan inner cover 1018 and the fan cover 1019, and a plurality of first blades 104 are located in the first sub-accommodating cavity 10111, and the fan inner cover 1018 and the fan bracket
  • a second sub-receiving chamber 10112 is formed between 1017 and a plurality of second vanes 105 are located within the second sub-receiving chamber 10112.
  • the first air inlet 1012 is in communication with the first sub-accommodating cavity 10111
  • the second air inlet 1013 is in communication with the second sub-accommodating cavity 10112
  • the first air outlet 1014 is in communication with the first sub-accommodating cavity 10111
  • the second air outlet 1015 is
  • the third air outlet 1016 is in communication with the second sub-accommodating cavity 10112.
  • the fan inner cover 1018, the fan cover 1019, and the plurality of first blades 104 may constitute a first sub-fan
  • the fan inner cover 1018, the fan bracket 1017, and the plurality of second blades 105 may constitute a second sub-fan.
  • the partition 102 is in the same plane as the fan inner cover 1018 and the partition 102 is located within the escape opening 10181. Therefore, the structure of the fan 10 can be made more reasonable, and the first sub-fan and the second sub-fan can be prevented from interfering with each other.
  • a plurality of first blades 104 are equally spaced on the first surface of the partition 102 along the circumferential direction of the partition 102, and a portion of each of the first blades 104 is located inside the first air inlet 1012, each first The rest of the fan blade 104 is located in the first air inlet The outside of the mouth 1012.
  • a plurality of second blades 105 are equally spaced on the second surface of the partition 102 along the circumferential direction of the partition 102, and a portion of each of the second blades 105 is located inside the second air inlet 1013, each second The remaining portion of the blade 105 is located outside of the second air inlet 1013.
  • the fan bracket 1017 includes a fan bracket body 10171 and a first upper flange 10172 connected to the upper edge of the fan bracket body 10171.
  • the third air outlet 1016 is disposed on the first upper flange 10172.
  • the up and down direction is indicated by an arrow A in FIGS. 2, 4, and 7.
  • the fan inner cover 1018 includes a fan inner cover body 10182, a second upper flange 10183, a left flange 10184, and a right flange 10185.
  • the second upper flange 10183 is connected to the upper edge of the fan inner cover body 10182, and the second upper flange 10183 is provided with a through hole 10186 communicating with the receiving cavity 1011 and the third air outlet 1016. That is to say, the cold air passes through the through hole 10186 and the third air outlet 1016 in this order.
  • the left flange 10184 and the right flange 10185 are oppositely disposed on the fan inner cover body 10182, and a second air outlet 1015 is formed between the fan inner cover body 10182, the left flange 10184, the right flange 10185, and the fan bracket body 10171. Thereby, the structure of the fan 10 can be made more reasonable.
  • a microwave oven 1 includes a housing 30, a cavity 20, a fan 10, a first electrical component 40, a second electrical component 50, and a third electrical component 60.
  • the fan 10 has a first air inlet 1012, a second air inlet 1013, a first air outlet 1014, a second air outlet 1015, and a third air outlet 1016.
  • the first air inlet 1012 and the second air inlet 1013 are oppositely disposed.
  • the opening direction of the third air outlet 1016 is different from the opening direction of the first air outlet 1014 and the opening direction of the second air outlet 1015.
  • the flow direction of the cold air blown from the third air outlet 1016 is different from the flow direction of the cold air blown from the first air outlet 1014 and the second air outlet 1015.
  • the third air outlet 1016 may be disposed on the housing 101, and the third air outlet 1016 may be in communication with the receiving cavity 1011.
  • the first air inlet 1012 communicates with the first air outlet 1014 to form a first air blowing channel 1011
  • the second air inlet 1013 communicates with the second air outlet 1015 to form a second air blowing channel (not shown).
  • the first air blowing channel 1011 and The second blowing channels are independently arranged.
  • the second air inlet 1013 communicates with the third air outlet 1016 to form a third air blowing passage (not shown).
  • the fan 10 cools the first electrical component 40 through the first air blowing passage 1011, and the fan 10 cools the second electrical component 50 through the second blowing passage, and the fan 10 cools the third electrical component 60 through the third blowing passage.
  • the cold air blown from the third air outlet 1016 cools the third electric component 60.
  • the fan 10 can blow out three separate cooling airflows so that the first electrical component 40, the second electrical component 50, and the third electrical component 60 can be cooled simultaneously.
  • the path of each cooling duct of the microwave oven 1 can be made shorter, the time required for the air to circulate once is greatly shortened, and the first electric component 40, the second electric component 50, and the third electric appliance can be greatly improved.
  • the cooling effect of the member 60 greatly improves the heat dissipation performance of the microwave oven 1, thereby greatly improving the performance of the microwave oven 1, and greatly prolonging the service life of the microwave oven 1.
  • the microwave oven 1 can perform stereo heat dissipation on the first electrical component 40, the second electrical component 50, and the third electrical component 60, improving the performance of the heat dissipation system of the microwave oven 1.
  • the temperature of the first electrical component 40, the second electrical component 50, and the third electrical component 60 can be effectively reduced without increasing the related device, thereby greatly improving the performance and service life of the microwave oven 1.
  • a rear surface of the cavity 20 and a front surface of the fan 10 form a first cold air passage communicating with the inlet air duct 32 and the first air inlet 1012, the rear surface of the fan 10 and the rear panel of the outer casing 30 (
  • a second cold air passage communicating with the intake air duct 32 and the second air inlet 1013 is formed between the drawings.
  • the accommodating space 90 has a first cooling air passage communicating with the first air outlet 1014, a second cooling air passage communicating with the second air outlet 1015, and a third cooling air passage communicating with the third air outlet 1016.
  • the fan 10 cools the first electrical component 40 through the first cooling air channel.
  • the fan 10 cools the second electrical component 50 through the second cooling air channel, and the fan 10 cools the third electrical component 60 through the third cooling airflow.
  • the first electrical component 40 is a magnetron
  • the second electrical component 50 is a transformer
  • the third electrical component 60 is a filter plate.
  • the opening direction of the first air outlet 1014 is perpendicular to the opening direction of the second air outlet 1015.
  • the opening of the first air outlet 1014 is directed to the left or to the right, the opening of the second air outlet 1015 is directed downward, and the opening of the third air outlet 1016 is upward.
  • the cold air blown from the first air outlet 1014 flows to the left or right, the cold air blown from the second air outlet 1015 flows downward, and the cold air blown from the third air outlet 1016 flows upward.
  • the first electrical component 40 is located on the left or right side of the first air outlet 1014. When the opening of the first air outlet 1014 is to the left, the first electrical component 40 is located at the left side of the first air outlet 1014, and when the opening of the first air outlet 1014 is directed to the right, the first electrical component 40 is located at the right of the first air outlet 1014. side.
  • the second electrical component 50 is located below the second air outlet 1015, and the third electrical component 60 is located above the third air outlet 1016.
  • the first electrical component 40 may be disposed on the rear plate of the outer casing 30, and the second electrical component 50 is disposed on the bottom plate 31 of the outer casing 30.
  • a portion of the top plate 21 of the cavity 20 extends rearward beyond the rear plate 22 of the cavity 20, i.e., the portion of the top plate 21 of the cavity 20 is located rearward of the rear plate 22 of the cavity 20, and the third electrical component 60 is disposed in the cavity On the upper surface of the portion of the top plate 21 of the body 20.
  • the portion of the top plate 21 of the cavity 20 is provided with a vent for passing cold air, which is opposed to the third electrical component 60.
  • the cooling air inlet 34 of the microwave oven 1 is disposed on the bottom plate 31 of the outer casing 30, and the cooling air inlet of the microwave oven 1 is located at the side plate (not shown) of the outer casing 30 and the side plate 23 of the cavity 20. between.
  • the microwave oven 1 further includes a fourth electrical component 70 (high voltage capacitor), and the fourth electrical component 70 is located between the side plate of the outer casing 30 and the side plate 23 of the cavity 20. A portion of the cold air entering from the cooling air inlet 34 of the microwave oven 1 may cool the fourth electrical component 70.
  • a fourth electrical component 70 high voltage capacitor
  • the microwave oven 1 further includes a front air deflector 81 having one end adjacent to the first air outlet 1014, one end of the front air deflector 81 and the first air outlet 1014 relative, leading wind
  • the plate 81 extends in a direction away from the first air outlet 1014.
  • the first air duct 84 is formed between the front air deflector 81 and the rear panel 22 of the cavity 20, and the rear panel 22 of the cavity 20 is located forward of the front air deflector 81.
  • a second air passage 85 opposed to the first electric component 40 is formed behind the front air deflector 81. That is to say, the front air deflector 81 can thereby divide the cold air blown from the first air outlet 1014 into two, one cold wind flows along the first air duct 84, and the other cold air flows along the second air duct 85 and cools.
  • the first electrical component 40 is formed between the front air deflector 81 and the rear panel 22 of the cavity 20, and the rear panel 22 of the cavity 20 is located forward of the front air deflector 81.
  • a second air passage 85 opposed to the first electric component 40 is formed behind the front air deflector 81. That is to say, the front air deflector 81 can thereby divide the cold air blown from the first air outlet 1014 into two, one cold wind flows along the first air duct
  • the chamber 22 of the cavity 20 is provided with a chamber air inlet 24, and the chamber 20 is provided with a chamber air outlet 25, and the chamber air inlet 24 is in communication with the first air duct 84.
  • the cold air flowing along the first air passage 84 enters the chamber of the chamber 20 from the chamber air inlet 24 and exits the chamber of the chamber 20 from the chamber air outlet 25.
  • the cold air blown from the first air outlet 1014 can simultaneously cool the chambers of the first electrical component 40 and the cavity 20, respectively, so that the three-dimensional air blowing heat dissipation of the microwave oven 1 can be realized, and the heat dissipation effect of the microwave oven 1 can be further improved.
  • the chamber air outlet 25 is provided on the top plate 21 of the cavity 20.
  • the microwave oven 1 further includes an air guiding cover 83.
  • the air guiding cover 83 is disposed on the top plate 21 of the cavity 20, and the air guiding cover 83 and the top plate 21 of the cavity 20 are formed to extend in the front-rear direction.
  • the front portion of the third air passage 86 communicates with the air outlet 25 of the chamber.
  • the wind that leaves the chamber of the chamber 20 from the chamber outlet 25 can then flow along the third duct 86 and eventually exit the microwave oven 1 from the cooling air outlet on the outer casing 30. Thereby, the structure of the microwave oven 1 can be made more reasonable.
  • the front-rear direction is as indicated by an arrow B in FIG. 7, and the left-right direction is as indicated by an arrow C in FIG.
  • the microwave oven 1 further includes a rear air deflector 82.
  • One end of the rear air deflector 82 is adjacent to the first air outlet 1014, and the rear air deflector 82 is away from the first air outlet 1014.
  • the direction extends, and a second air passage 85 is formed between the front air deflector 81 and the rear air deflector 82. Thereby, more cold air can flow along the second air passage 85, so that the cooling effect of the first electric component 40 can be further improved.
  • the rear air deflector 82 is located rearward of the first air outlet 1014, and the rear air deflector 82 is adjacent to the first air outlet 1014 in the front-rear direction.
  • the amount of cold air blown to the first electric component 40 and the amount of cold air entering the chamber of the cavity 20 can be adjusted by moving the front air deflector 81 in the front-rear direction.
  • One end of the front air deflector 81 may be connected to the edge of the first air outlet 1014, that is, one end of the front air deflector 81 may be connected to the fan 10, and one end of the rear air deflector 82 is connected to the fan 10.
  • one end of the front air deflector 81 is located in the middle of the first air outlet 1014 in the front-rear direction, whereby the amount of cold air blown toward the first electrical component 40 can be substantially equal to the amount of cold air entering the cavity of the cavity 20.
  • the front air deflector 81 includes a wind deflector body 811 and a curved plate 812.
  • One end of the wind deflector body 811 is adjacent to the first air outlet 1014 and opposite to the first air outlet 1014.
  • the wind deflector body 811 extends in the left-right direction, and a first air passage 84 is formed between the wind deflector body 811 and the rear plate 22 of the cavity 20.
  • the front end of the curved plate 812 is connected to the wind deflector body 811.
  • the curved plate 812 extends rearward from the wind deflector body 811, and the second wind is formed between the wind deflector body 811, the curved plate 812 and the rear air deflector 82. Road 85.
  • the flow direction of the cold air flowing along the second air passage 85 can be gradually changed to better cool the first electric component 40.
  • the deflector body 811, the curved plate 812 and the rear deflector 82 may all be disposed generally vertically.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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Abstract

一种微波炉（1），包括：外壳（30）、腔体（20）、第一和第二电气件（40，50）以及风扇（10）。外壳（30）上设有冷却风进口（34）和冷却风出口；腔体（20）具有腔室，腔体（20）套嵌在外壳（30）内，腔体（20）的后板（22）与外壳（30）的后板之间形成容纳空间（90），外壳（30）的侧板与腔体（20）的侧板（23）之间形成进风风道（32）；第一和第二电气件（40，50）设在容纳空间（90）内；风扇（10）设在容纳空间（90）内，风扇（10）具有第一和第二进风口（1012，1013）、第一和第二出风口（1014，1015），第一和第二进风口（1012，1013）相对设置，第一进风口（1012）与第一出风口（1014）相连通形成第一吹风通道（1011），第二进风口（1013）与第二出风口（1015）相连通形成第二吹风通道，风扇（10）通过第一吹风通道（1011）冷却第一电气件（40）且通过第二吹风通道冷却第二电气件（50）。该微波炉（1）具有冷却效果好、散热性能好、使用性能好、使用寿命长等优点。

Description

微波炉 技术领域
本发明涉及家电领域，具体而言，涉及微波炉。
背景技术
微波炉在使用过程中，微波炉的电气件会产生大量的热。如果电气件长期处于高温状态中，对微波炉的整体性能和使用寿命均有影响。因此，如何对电气件进行散热变成了一个很重要的问题。现有的微波炉利用外界的冷风依次对多个电气件进行冷却，这导致现有的微波炉的冷却风道的路径较长，空气循环一次的时间也较长，对电气件的冷却效果较差，即现有的微波炉的散热性能较差。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种具有冷却效果好、散热性能好的优点的微波炉。
根据本发明实施例的微波炉包括：外壳，所述外壳上设有冷却风进口和冷却风出口；腔体，所述腔体具有腔室，所述腔体套嵌在所述外壳内且前端敞开，所述腔体的后板与所述外壳的后板之间形成容纳空间，所述外壳的侧板与所述腔体的侧板之间形成与所述冷却风进口连通的进风风道；第一电气件和第二电气件，所述第一电气件和所述第二电气件均设在所述容纳空间内；以及风扇，所述风扇设在所述容纳空间内，所述风扇具有第一进风口、第二进风口、第一出风口和第二出风口，所述第一进风口和所述第二进风口相对设置，其中所述第一进风口与所述第一出风口相连通形成第一吹风通道，所述第二进风口与所述第二出风口相连通形成第二吹风通道，所述第一吹风通道与所述第二吹风通道相互独立设置，所述风扇通过所述第一吹风通道冷却所述第一电气件，所述风扇通过所述第二吹风通道冷却所述第二电气件。
根据本发明实施例的微波炉具有冷却效果好、散热性能好的优点。
另外，根据本发明上述实施例的微波炉还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述风扇包括：壳体，所述壳体内具有容纳腔，所述壳体上设有与所述容纳腔连通的所述第一进风口、所述第二进风口、所述第一出风口和所述第二出风口；隔板，所述隔板设在所述容纳腔内，所述隔板的第一表面与所述第一进风口相对，所述隔板的第二表面与所述第二进风口相对；用于驱动所述隔板旋转的电机，所述电机与所述隔板相连；多个第一扇叶，多个所述第一扇叶沿所述隔板的周向间隔开地设在所述隔板的 第一表面上，每个所述第一扇叶沿平行于所述隔板的旋转轴向的方向延伸；和多个第二扇叶，多个所述第二扇叶沿所述隔板的周向间隔开地设在所述隔板的第二表面上，每个所述第二扇叶沿平行于所述隔板的旋转轴向的方向延伸。
根据本发明的一个实施例，所述壳体包括：风扇支架，所述风扇支架上设有所述第二进风口；风扇内盖，所述风扇内盖设在所述风扇支架上，所述风扇内盖与所述风扇支架之间形成所述第二出风口，所述风扇内盖上设有避让口；和风扇盖，所述风扇盖设在所述风扇内盖和所述风扇支架中的至少一个上，所述风扇盖与所述风扇内盖之间形成所述第一出风口，所述风扇盖上设有所述第一进风口。
根据本发明的一个实施例，每个所述第一扇叶的一部分位于所述第一进风口的内侧，每个所述第一扇叶的其余部分位于所述第一进风口的外侧，每个所述第二扇叶的一部分位于所述第二进风口的内侧，每个所述第二扇叶的其余部分位于所述第二进风口的外侧。
根据本发明的一个实施例，所述风扇内盖与所述风扇盖之间形成第一子容纳腔且多个所述第一扇叶位于所述第一子容纳腔内，所述风扇内盖与所述风扇支架之间形成第二子容纳腔且多个所述第二扇叶位于所述第二子容纳腔内。
根据本发明的一个实施例，所述隔板与所述风扇内盖位于同一平面内，所述隔板位于所述避让口内。
根据本发明的一个实施例，所述风扇支架包括风扇支架本体和与所述风扇支架本体的上沿相连的第一上翻边，所述第一上翻边上设有与所述容纳腔连通的第三出风口；所述风扇内盖包括风扇内盖本体、第二上翻边、左翻边和右翻边，所述第二上翻边与所述风扇内盖本体的上沿相连，所述第二上翻边上设有与所述容纳腔和所述第三出风口连通的通孔，所述左翻边和所述右翻边相对地设在所述风扇内盖本体上，所述风扇内盖本体、所述左翻边、所述右翻边和所述风扇支架本体之间形成所述第二出风口。
根据本发明的一个实施例，所述第一出风口的开口方向垂直于所述第二出风口的开口方向。
根据本发明的一个实施例，所述壳体上还设有与所述容纳腔连通的第三出风口，所述第三出风口的开口方向不同于所述第一出风口的开口方向和所述第二出风口的开口方向，所述第二进风口与所述第三出风口相连通形成第三吹风通道，其中所述微波炉进一步包括第三电气件，所述风扇通过所述第三吹风风道冷却所述第三电气件。
根据本发明的一个实施例，所述第一出风口的开口朝左或朝右，所述第一电气件位于所述第一出风口的左侧或右侧，所述第二出风口的开口朝下，所述第二电气件位于所述第二出风口的下方，所述第三出风口的开口朝上，所述第三电气件位于所述第三出风口的上方。
根据本发明的一个实施例，所述第二电气件设在所述外壳的底板上，所述腔体的顶板 的一部分向后延伸超出所述腔体的后板，所述第三电气件设在所述腔体的顶板的所述一部分上。
根据本发明的一个实施例，所述腔体的后板上设有腔室进风口，所述腔体上设有腔室出风口，所述微波炉进一步包括前导风板，所述前导风板的一端邻近所述第一出风口且与所述第一出风口相对，所述前导风板向远离所述第一出风口的方向延伸，其中所述前导风板与所述腔体的后板之间形成与所述腔室进风口连通的第一风道，所述前导风板的后方形成与所述第一电气件相对的第二风道。
根据本发明的一个实施例，所述微波炉进一步包括后导风板，所述后导风板的一端邻近所述第一出风口，所述后导风板向远离所述第一出风口的方向延伸，所述前导风板与所述后导风板之间形成所述第二风道。
根据本发明的一个实施例，所述前导风板包括：导风板本体，所述导风板本体沿左右方向延伸，所述导风板本体与所述腔体的后板之间形成所述第一风道；和弧形板，所述弧形板的前端与所述导风板本体相连，所述弧形板从所述导风板本体向后延伸，所述导风板本体、所述弧形板与所述后导风板之间形成所述第二风道。
根据本发明的一个实施例，所述腔室出风口设在所述腔体的顶板上，所述微波炉进一步包括导风罩，所述导风罩设在所述腔体的顶板上，所述导风罩与所述腔体的顶板之间形成沿前后方向延伸的第三风道，所述第三风道的前部与所述腔室出风口连通。
根据本发明的一个实施例，所述冷却风进口设在所述外壳的底板上，所述冷却风进口位于所述外壳的侧板与所述腔体的侧板之间，其中所述微波炉进一步包括第四电气件，所述第四电气件位于所述外壳的侧板与所述腔体的侧板之间。
根据本发明的一个实施例，所述第一电气件为磁控管，所述第二电气件为变压器，所述第三电气件为滤波板，所述第四电气件为高压电容。
附图说明
图1是根据本发明实施例的风扇的爆炸图；
图2是根据本发明实施例的风扇的结构示意图；
图3是根据本发明实施例的风扇的结构示意图；
图4是根据本发明实施例的风扇的结构示意图；
图5是根据本发明实施例的风扇的局部结构示意图；
图6是根据本发明实施例的风扇的局部结构示意图；
图7是根据本发明实施例的微波炉的局部结构示意图；
图8是根据本发明实施例的微波炉的局部结构示意图；
图9是根据本发明实施例的微波炉的局部结构示意图；
图10是根据本发明实施例的微波炉的局部结构示意图；
图11是根据本发明实施例的微波炉的局部结构示意图。
微波炉1、风扇10、
壳体101、容纳腔1011、第一子容纳腔10111、第二子容纳腔10112、
第一进风口1012、第二进风口1013、第一出风口1014、第二出风口1015、第三出风口1016、
风扇支架1017、风扇支架本体10171、第一上翻边10172、
风扇内盖1018、避让口10181、风扇内盖本体10182、第二上翻边10183、左翻边10184、右翻边10185、通孔10186、
风扇盖1019、
隔板102、电机103、第一扇叶104、第二扇叶105
腔体20、顶板21、后板22、侧板23、腔室进风口24、腔室出风口25、
外壳30、底板31、进风风道32、冷却风进口34、
第一电气件40、第二电气件50、第三电气件60、第四电气件70、前导风板81、导风板本体811、弧形板812、后导风板82、导风罩83、第一风道84、第二风道85、第三风道86、容纳空间90、
第一吹风通道1011、第一进风口1012、第二进风口1013、第一出风口1014、第二出风口1015、第三出风口1016
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面参考附图描述根据本发明实施例的微波炉1。如图1-图11所示，根据本发明实施例的微波炉1包括外壳30、腔体20、风扇10、第一电气件40和第二电气件50。
外壳30上设有冷却风进口34和冷却风出口。腔体20具有腔室，腔体20套嵌在外壳30内，且腔体20的前端敞开。腔体20的后板22与外壳30的后板之间形成容纳空间90。外壳30的侧板(图中未示出)与腔体20的侧板23之间形成与冷却风进口34连通的进风风道32。第一电气件40和第二电气件50均设在容纳空间90内。
风扇10设在容纳空间90内，风扇具有第一进风口1012、第二进风口1013、第一出风口1014和第二出风口1015，第一进风口1012和第二进风口1013相对设置。
其中，第一进风口1012与第一出风口1014相连通形成第一吹风通道1011，第二进风口 1013与第二出风口1015相连通形成第二吹风通道(未示出)，第一吹风通道1011与第二吹风通道相互独立设置。风扇10通过第一吹风通道1011冷却第一电气件40，风扇10通过第二吹风通道冷却第二电气件50。
微波炉在使用过程中，微波炉的电气件会产生大量的热。如果电气件长期处于高温状态中，对微波炉的整体性能和使用寿命均有影响。因此，如何对电气件进行散热变成了一个很重要的问题。现有的微波炉利用外界的冷风依次对多个电气件进行冷却，这导致现有的微波炉的冷却风道的路径较长，空气循环一次的时间也较长，对电气件的冷却效果较差，即现有的微波炉的散热性能较差。
在根据本发明实施例的微波炉1中，外界的冷风通过外壳30上的冷却风进口34进入到容纳空间90内。然后，一部分冷风通过第一进风口1012进入到风扇10内且其余冷风通过第二进风口1013进入到风扇10内。
风扇10可以吹出两股独立的冷却风流，即风扇10同时从第一出风口1014和第二出风口1015吹出冷风。换言之，一股冷风沿第一吹风通道1011流动，另一股冷风沿第二吹风通道流动。从第一出风口1014吹出的冷风对第一电气件40进行冷却，从第二出风口1015吹出的冷风对第二电气件50进行冷却。经过第一电气件40和第二电气件50的风可以通过外壳30的冷却风出口离开微波炉1。
也就是说，风扇10可以同时分别对第一电气件40和第二电气件50进行冷却。换言之，根据本发明实施例的微波炉1具有多个冷却风道，可以同时分别对第一电气件40和第二电气件50进行冷却。由此可以使微波炉1的每个冷却风道的路径较短，极大地缩短了空气循环一次所需的时间，从而可以极大地提高对第一电气件40和第二电气件50的冷却效果，极大地提高了微波炉1的散热性能，进而极大地提高了微波炉1的使用性能，极大地延长了微波炉1的使用寿命。
根据本发明实施例的微波炉1通过设置具有第一吹风通道1011和第二吹风通道的风扇10，从而可以同时分别对第一电气件40和第二电气件50进行冷却，而且可以极大地缩短用于冷却第一电气件40和第二电气件50的冷却风道的路径，极大地缩短空气循环一次所需的时间。由此可以极大地提高对第一电气件40和第二电气件50的冷却效果，从而极大地提高了微波炉1的散热性能，进而极大地提高了微波炉1的使用性能，极大地延长了微波炉1的使用寿命。
因此，根据本发明实施例的微波炉1具有冷却效果好、散热性能好、使用性能好、使用寿命长等优点。
如图1-图6所示，根据本发明实施例的风扇10包括壳体101、隔板102、用于驱动隔板102旋转的电机103、多个第一扇叶104和多个第二扇叶105。
壳体101内具有容纳腔1011，壳体101上设有与容纳腔1011连通的第一进风口1012、第二进风口1013、第一出风口1014和第二出风口1015，第一进风口1012和第二进风口1013相对设置。隔板102设在容纳腔1011内，隔板102的第一表面与第一进风口1012相对，隔板102的第二表面与第二进风口1013相对。
多个第一扇叶104沿隔板102的周向间隔开地设在隔板102的第一表面上，每个第一扇叶104沿平行于隔板102的旋转轴向的方向延伸。多个第二扇叶105沿隔板102的周向间隔开地设在隔板102的第二表面上，每个第二扇叶105沿平行于隔板102的旋转轴向的方向延伸。电机103与隔板102相连，以便带动隔板102旋转，进而带动多个第一扇叶104和多个第二扇叶105旋转。
根据本发明实施例的风扇10通过在壳体101上设置第一出风口1014和第二出风口1015，从而可以同时吹出两股独立的冷风。由此可以同时分别对两个电气件进行冷却，从而可以提高冷却效果。
因此，根据本发明实施例的风扇10具有冷却效果好等优点。
如图1-图5所示，壳体101包括风扇支架1017、风扇内盖1018和风扇盖1019。风扇支架1017上设有第二进风口1013和第三出风口1016。风扇内盖1018设在风扇支架1017上，风扇内盖1018与风扇支架1017之间形成第二出风口1015，风扇内盖1018上设有避让口10181。风扇盖1019设在风扇内盖1018和风扇支架1017中的至少一个上，风扇盖1019与风扇内盖1018之间形成第一出风口1014，风扇盖1019上设有第一进风口1012。由此可以使风扇10的结构更加合理。
具体地，风扇盖1019设在风扇内盖1018上。
在本发明的一个实施例中，风扇内盖1018与风扇盖1019之间形成第一子容纳腔10111且多个第一扇叶104位于第一子容纳腔10111内，风扇内盖1018与风扇支架1017之间形成第二子容纳腔10112且多个第二扇叶105位于第二子容纳腔10112内。
其中，第一进风口1012与第一子容纳腔10111连通，第二进风口1013与第二子容纳腔10112连通，第一出风口1014与第一子容纳腔10111连通，第二出风口1015和第三出风口1016与第二子容纳腔10112连通。换言之，风扇内盖1018、风扇盖1019和多个第一扇叶104可以构成第一个子风扇，风扇内盖1018、风扇支架1017和多个第二扇叶105可以构成第二个子风扇。由此可以使风扇10的结构更加合理。
有利地，隔板102与风扇内盖1018位于同一平面内，隔板102位于避让口10181内。由此可以使风扇10的结构更加合理，避免该第一个子风扇与该第二个子风扇相互干扰。
多个第一扇叶104沿隔板102的周向等间距地设在隔板102的第一表面上，每个第一扇叶104的一部分位于第一进风口1012的内侧，每个第一扇叶104的其余部分位于第一进风 口1012的外侧。多个第二扇叶105沿隔板102的周向等间距地设在隔板102的第二表面上，每个第二扇叶105的一部分位于第二进风口1013的内侧，每个第二扇叶105的其余部分位于第二进风口1013的外侧。由此可以使风扇10的结构更加合理。
如图1-图5所示，风扇支架1017包括风扇支架本体10171和与风扇支架本体10171的上沿相连的第一上翻边10172，第三出风口1016设在第一上翻边10172上。其中，上下方向如图2、图4和图7中的箭头A所示。
风扇内盖1018包括风扇内盖本体10182、第二上翻边10183、左翻边10184和右翻边10185。第二上翻边10183与风扇内盖本体10182的上沿相连，第二上翻边10183上设有与容纳腔1011和第三出风口1016连通的通孔10186。也就是说，冷风依次通过通孔10186和第三出风口1016。
左翻边10184和右翻边10185相对地设在风扇内盖本体10182上，风扇内盖本体10182、左翻边10184、右翻边10185和风扇支架本体10171之间形成第二出风口1015。由此可以使风扇10的结构更加合理。
如图1-图11所示，根据本发明的一些实施例的微波炉1包括外壳30、腔体20、风扇10、第一电气件40、第二电气件50和第三电气件60。
如图1-图6所示，根据本发明实施例的风扇10具有第一进风口1012、第二进风口1013、第一出风口1014、第二出风口1015和第三出风口1016。
第一进风口1012和第二进风口1013相对设置。第三出风口1016的开口方向不同于第一出风口1014的开口方向和第二出风口1015的开口方向。换言之，从第三出风口1016吹出的冷风的流动方向不同于从第一出风口1014和第二出风口1015吹出的冷风的流动方向。其中，第三出风口1016可以设在壳体101上，第三出风口1016可以与容纳腔1011连通。
第一进风口1012与第一出风口1014相连通形成第一吹风通道1011，第二进风口1013与第二出风口1015相连通形成第二吹风通道(未示出)，第一吹风通道1011与第二吹风通道相互独立设置。第二进风口1013与第三出风口1016相连通形成第三吹风通道(未示出)。
风扇10通过第一吹风通道1011冷却第一电气件40，风扇10通过第二吹风通道冷却第二电气件50，风扇10通过第三吹风通道冷却第三电气件60。
也就是说，从第三出风口1016吹出的冷风对第三电气件60进行冷却。换言之，风扇10可以吹出三股独立的冷却风流，从而可以同时分别对第一电气件40、第二电气件50和第三电气件60进行冷却。由此可以使微波炉1的每个冷却风道的路径较短，极大地缩短了空气循环一次所需的时间，从而可以极大地提高对第一电气件40、第二电气件50和第三电气件60的冷却效果，极大地提高了微波炉1的散热性能，进而极大地提高了微波炉1的使用性能，极大地延长了微波炉1的使用寿命。
根据本发明实施例的微波炉1可以对第一电气件40、第二电气件50和第三电气件60进行立体散热，提高了微波炉1的散热系统的性能。在不增加相关器件的前提下，能有效地降低第一电气件40、第二电气件50和第三电气件60的温度，极大地提高了微波炉1的使用性能及使用寿命。
有利地，腔体20的后板22与风扇10的前表面之间形成与进风风道32和第一进风口1012连通的第一冷风通道，风扇10的后表面与外壳30的后板(图中未示出)之间形成与进风风道32和第二进风口1013连通的第二冷风通道。
容纳空间90内具有与第一出风口1014连通的第一冷却风道、与第二出风口1015连通的第二冷却风道和与第三出风口1016连通的第三冷却风道。风扇10通过该第一冷却风道冷却第一电气件40，风扇10通过该第二冷却风道冷却第二电气件50，风扇10通过该第三冷却风道冷却第三电气件60。
其中，第一电气件40为磁控管，第二电气件50为变压器，第三电气件60为滤波板。
有利地，第一出风口1014的开口方向垂直于第二出风口1015的开口方向。
在本发明的一个具体示例中，第一出风口1014的开口朝左或朝右，第二出风口1015的开口朝下，第三出风口1016的开口朝上。换言之，从第一出风口1014吹出的冷风向左或向右流动，从第二出风口1015吹出的冷风向下流动，从第三出风口1016吹出的冷风向上流动。
其中，第一电气件40位于第一出风口1014的左侧或右侧。第一出风口1014的开口朝左时，第一电气件40位于第一出风口1014的左侧，第一出风口1014的开口朝右时，第一电气件40位于第一出风口1014的右侧。第二电气件50位于第二出风口1015的下方，第三电气件60位于第三出风口1016的上方。
具体而言，第一电气件40可以设在外壳30的后板上，第二电气件50设在外壳30的底板31上。腔体20的顶板21的一部分向后延伸超出腔体20的后板22，即腔体20的顶板21的所述一部分位于腔体20的后板22的后方，第三电气件60设在腔体20的顶板21的所述一部分的上表面上。换言之，腔体20的顶板21的所述一部分上设有用于通过冷风的通风孔，该通风孔与第三电气件60相对。
如图7所示，微波炉1的冷却风进口34设在外壳30的底板31上，微波炉1的冷却风进口位于外壳30的侧板(图中未示出)与腔体20的侧板23之间。
其中，微波炉1进一步包括第四电气件70(高压电容)，第四电气件70位于外壳30的侧板与腔体20的侧板23之间。从微波炉1的冷却风进口34进入的冷风的一部分可以冷却第四电气件70。
如图10和图11所示，在本发明的一些示例中，微波炉1进一步包括前导风板81，前导风板81的一端邻近第一出风口1014，前导风板81的一端与第一出风口1014相对，前导风 板81向远离第一出风口1014的方向延伸。
其中，前导风板81与腔体20的后板22之间形成第一风道84，腔体20的后板22位于前导风板81的前方。前导风板81的后方形成与第一电气件40相对的第二风道85。也就是说，由此前导风板81可以将从第一出风口1014吹出的冷风分为两股，一股冷风沿第一风道84流动，另一股冷风沿第二风道85流动并冷却第一电气件40。
腔体20的后板22上设有腔室进风口24，腔体20上设有腔室出风口25，该腔室进风口24与第一风道84连通。沿第一风道84流动的冷风由该腔室进风口24进入腔体20的腔室内，并从该腔室出风口25离开腔体20的腔室。
由此从第一出风口1014吹出的冷风可以同时分别冷却第一电气件40和腔体20的腔室，从而可以实现对微波炉1的立体吹风散热，进一步提高微波炉1的散热效果。
有利地，该腔室出风口25设在腔体20的顶板21上。如图7-图9所示，微波炉1进一步包括导风罩83，导风罩83设在腔体20的顶板21上，导风罩83与腔体20的顶板21之间形成沿前后方向延伸的第三风道86。其中，第三风道86的前部与该腔室出风口25连通。由此从该腔室出风口25离开腔体20的腔室的风可以沿第三风道86流动，并最终从外壳30上的冷却风出口排出微波炉1。由此可以使微波炉1的结构更加合理。
其中，前后方向如图7中的箭头B所示，左右方向如图10中的箭头C所示。
如图11所示，在本发明的一个示例中，微波炉1进一步包括后导风板82，后导风板82的一端邻近第一出风口1014，后导风板82向远离第一出风口1014的方向延伸，前导风板81与后导风板82之间形成第二风道85。由此可以使更多的冷风沿第二风道85流动，从而可以进一步提高第一电气件40的冷却效果。
有利地，如图11所示，后导风板82位于第一出风口1014的后方，后导风板82在前后方向上邻近第一出风口1014。可以通过在前后方向上移动前导风板81，来调节吹向第一电气件40的冷风量以及进入腔体20的腔室内的冷风量。
前导风板81的一端可以与第一出风口1014的边沿相连，即前导风板81的一端可以与风扇10相连，后导风板82的一端与风扇10相连。有利地，前导风板81的一端在前后方向上位于第一出风口1014的中部，由此可以使吹向第一电气件40的冷风量大体等于进入腔体20的腔室内的冷风量。
如图11所示，在本发明的一个具体示例中，前导风板81包括导风板本体811和弧形板812。导风板本体811的一端邻近第一出风口1014且与第一出风口1014相对。导风板本体811沿左右方向延伸，导风板本体811与腔体20的后板22之间形成第一风道84。弧形板812的前端与导风板本体811相连，弧形板812从导风板本体811向后延伸，导风板本体811、弧形板812与后导风板82之间形成第二风道85。
通过设置弧形板812，从而可以逐渐地改变沿第二风道85流动的冷风的流向，以便更好地对第一电气件40进行冷却。有利地，导风板本体811、弧形板812和后导风板82都可以大体竖直地设置。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (17)

  1. 一种微波炉，其特征在于，包括：
    外壳，所述外壳上设有冷却风进口和冷却风出口；
    腔体，所述腔体具有腔室，所述腔体套嵌在所述外壳内且前端敞开，所述腔体的后板与所述外壳的后板之间形成容纳空间，所述外壳的侧板与所述腔体的侧板之间形成与所述冷却风进口连通的进风风道；
    第一电气件和第二电气件，所述第一电气件和所述第二电气件均设在所述容纳空间内；以及
    风扇，所述风扇设在所述容纳空间内，所述风扇具有第一进风口、第二进风口、第一出风口和第二出风口，所述第一进风口和所述第二进风口相对设置，其中所述第一进风口与所述第一出风口相连通形成第一吹风通道，所述第二进风口与所述第二出风口相连通形成第二吹风通道，所述第一吹风通道与所述第二吹风通道相互独立设置，所述风扇通过所述第一吹风通道冷却所述第一电气件，所述风扇通过所述第二吹风通道冷却所述第二电气件。
  2. 根据权利要求1所述的微波炉，其特征在于，所述风扇包括：
    壳体，所述壳体内具有容纳腔，所述壳体上设有与所述容纳腔连通的所述第一进风口、所述第二进风口、所述第一出风口和所述第二出风口；
    隔板，所述隔板设在所述容纳腔内，所述隔板的第一表面与所述第一进风口相对，所述隔板的第二表面与所述第二进风口相对；
    用于驱动所述隔板旋转的电机，所述电机与所述隔板相连；
    多个第一扇叶，多个所述第一扇叶沿所述隔板的周向间隔开地设在所述隔板的第一表面上，每个所述第一扇叶沿平行于所述隔板的旋转轴向的方向延伸；和
    多个第二扇叶，多个所述第二扇叶沿所述隔板的周向间隔开地设在所述隔板的第二表面上，每个所述第二扇叶沿平行于所述隔板的旋转轴向的方向延伸。
  3. 根据权利要求2所述的微波炉，其特征在于，所述壳体包括：
    风扇支架，所述风扇支架上设有所述第二进风口；
    风扇内盖，所述风扇内盖设在所述风扇支架上，所述风扇内盖与所述风扇支架之间形成所述第二出风口，所述风扇内盖上设有避让口；和
    风扇盖，所述风扇盖设在所述风扇内盖和所述风扇支架中的至少一个上，所述风扇盖与所述风扇内盖之间形成所述第一出风口，所述风扇盖上设有所述第一进风口。
  4. 根据权利要求3所述的微波炉，其特征在于，每个所述第一扇叶的一部分位于所述第一进风口的内侧，每个所述第一扇叶的其余部分位于所述第一进风口的外侧，每个所述第二扇叶的一部分位于所述第二进风口的内侧，每个所述第二扇叶的其余部分位于所述第二进 风口的外侧。
  5. 根据权利要求3所述的微波炉，其特征在于，所述风扇内盖与所述风扇盖之间形成第一子容纳腔且多个所述第一扇叶位于所述第一子容纳腔内，所述风扇内盖与所述风扇支架之间形成第二子容纳腔且多个所述第二扇叶位于所述第二子容纳腔内。
  6. 根据权利要求5所述的微波炉，其特征在于，所述隔板与所述风扇内盖位于同一平面内，所述隔板位于所述避让口内。
  7. 根据权利要求6所述的微波炉，其特征在于，所述风扇支架包括风扇支架本体和与所述风扇支架本体的上沿相连的第一上翻边，所述第一上翻边上设有与所述容纳腔连通的第三出风口；
    所述风扇内盖包括风扇内盖本体、第二上翻边、左翻边和右翻边，所述第二上翻边与所述风扇内盖本体的上沿相连，所述第二上翻边上设有与所述容纳腔和所述第三出风口连通的通孔，所述左翻边和所述右翻边相对地设在所述风扇内盖本体上，所述风扇内盖本体、所述左翻边、所述右翻边和所述风扇支架本体之间形成所述第二出风口。
  8. 根据权利要求1所述的微波炉，其特征在于，所述第一出风口的开口方向垂直于所述第二出风口的开口方向。
  9. 根据权利要求2所述的微波炉，其特征在于，所述壳体上还设有与所述容纳腔连通的第三出风口，所述第三出风口的开口方向不同于所述第一出风口的开口方向和所述第二出风口的开口方向，所述第二进风口与所述第三出风口相连通形成第三吹风通道，其中所述微波炉进一步包括第三电气件，所述风扇通过所述第三吹风风道冷却所述第三电气件。
  10. 根据权利要求9所述的微波炉，其特征在于，所述第一出风口的开口朝左或朝右，所述第一电气件位于所述第一出风口的左侧或右侧，所述第二出风口的开口朝下，所述第二电气件位于所述第二出风口的下方，所述第三出风口的开口朝上，所述第三电气件位于所述第三出风口的上方。
  11. 根据权利要求10所述的微波炉，其特征在于，所述第二电气件设在所述外壳的底板上，所述腔体的顶板的一部分向后延伸超出所述腔体的后板，所述第三电气件设在所述腔体的顶板的所述一部分上。
  12. 根据权利要求1所述的微波炉，其特征在于，所述腔体的后板上设有腔室进风口，所述腔体上设有腔室出风口，所述微波炉进一步包括前导风板，所述前导风板的一端邻近所述第一出风口且与所述第一出风口相对，所述前导风板向远离所述第一出风口的方向延伸，其中所述前导风板与所述腔体的后板之间形成与所述腔室进风口连通的第一风道，所述前导风板的后方形成与所述第一电气件相对的第二风道。
  13. 根据权利要求12所述的微波炉，其特征在于，进一步包括后导风板，所述后导风 板的一端邻近所述第一出风口，所述后导风板向远离所述第一出风口的方向延伸，所述前导风板与所述后导风板之间形成所述第二风道。
  14. 根据权利要求12所述的微波炉，其特征在于，所述前导风板包括：
    导风板本体，所述导风板本体沿左右方向延伸，所述导风板本体与所述腔体的后板之间形成所述第一风道；和
    弧形板，所述弧形板的前端与所述导风板本体相连，所述弧形板从所述导风板本体向后延伸，所述导风板本体、所述弧形板与所述后导风板之间形成所述第二风道。
  15. 根据权利要求12所述的微波炉，其特征在于，所述腔室出风口设在所述腔体的顶板上，所述微波炉进一步包括导风罩，所述导风罩设在所述腔体的顶板上，所述导风罩与所述腔体的顶板之间形成沿前后方向延伸的第三风道，所述第三风道的前部与所述腔室出风口连通。
  16. 根据权利要求9所述的微波炉，其特征在于，所述冷却风进口设在所述外壳的底板上，所述冷却风进口位于所述外壳的侧板与所述腔体的侧板之间，其中所述微波炉进一步包括第四电气件，所述第四电气件位于所述外壳的侧板与所述腔体的侧板之间。
  17. 根据权利要求16所述的微波炉，其特征在于，所述第一电气件为磁控管，所述第二电气件为变压器，所述第三电气件为滤波板，所述第四电气件为高压电容。
PCT/CN2015/090803 2014-12-30 2015-09-25 微波炉 WO2016107233A1 (zh)

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