CN107550308B - Embedded microwave oven - Google Patents
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- CN107550308B CN107550308B CN201710752299.XA CN201710752299A CN107550308B CN 107550308 B CN107550308 B CN 107550308B CN 201710752299 A CN201710752299 A CN 201710752299A CN 107550308 B CN107550308 B CN 107550308B
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Abstract
The present invention provides an embedded microwave oven, comprising: the shell comprises a shell front plate, a shell top plate, a shell rear cover, a shell bottom plate and two shell side plates, wherein the shell front plate is provided with an opening; a door body mounted on a front surface of the front plate of the case; a control box mounted on a front surface of the front plate of the housing; the cavity is arranged in the shell and comprises a cavity top plate, a cavity back plate, a cavity bottom plate and two cavity side plates, the front end of the cavity is fixedly connected with the shell front plate and aligned with the opening of the shell front plate, a cooling air channel is formed between the cavity and the shell, and the shell front plate is provided with a shell air inlet and a shell air outlet which are communicated with the cooling air channel; the cooling fan is arranged in the cooling air duct; and the electric device is arranged in the cooling air duct. In the scheme, the cooling air duct is completely positioned inside the product, the air inlet and outlet are not influenced by the size of the cabinet, and the heat dissipation is stable and reliable, so that the safety and the stability of the product in operation can be ensured.
Description
Technical Field
The invention relates to the field of cooking devices, in particular to an embedded microwave oven.
Background
The microwave oven is an oven with a microwave function, a cavity is required to be closed in order to realize the characteristic of rapid temperature rise of the oven, but when the microwave oven is used, the cavity needs to be ventilated in order to smoothly discharge water vapor in the cavity and ensure that a door body perspective window is clear and visible, and the sealing and the ventilation are contradictory. The air duct of the prior embedded microwave oven is designed to be a fan rear-mounted type, air suction is carried out on the electric device through a gap between the whole microwave oven and a cabinet or a reserved gap of the cabinet, and then the electric device is discharged from a gap between a door body and a control box and a gap between the door body and the lower edge of the cabinet. When the microwave heating is started, the cavity vent is opened through the controllable switch to ventilate the cavity; when hot air or barbecue heating is started, the ventilation opening of the cavity is closed, and the temperature can be quickly increased. However, since the air inlet channel depends on the cabinet, when the size of the cabinet does not meet the design requirement, the gap between the whole microwave oven and the cabinet is not enough, so that the air input of the microwave oven cannot be ensured, the heat dissipation effect of the product is affected, the temperature rise of the electric device is too high, and the problem of product safety performance is easily caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention aims to provide an embedded microwave oven with reliable heat dissipation.
To achieve the above object, an embodiment of the present invention provides an embedded microwave oven including: the shell comprises a shell front plate, a shell top plate, a shell rear cover, a shell bottom plate and two shell side plates, wherein an opening is formed in the shell front plate; the door body is arranged on the front surface of the front plate of the shell and used for controlling the opening and the closing of the opening of the front plate of the shell; a control box mounted on a front surface of the case front plate; the cavity is arranged in the shell and comprises a cavity top plate, a cavity rear plate, a cavity bottom plate and two cavity side plates, the front end of the cavity is fixedly connected with the shell front plate and is aligned with an opening of the shell front plate, a cooling air channel is formed between the cavity and the shell, and a shell air inlet and a shell air outlet which are communicated with the cooling air channel are arranged at the positions, which are not covered by the door body and the control box, of the shell front plate; the cooling fan is arranged in the cooling air duct and used for sucking air from the shell air inlet and supplying air to the shell air outlet through the cooling air duct; and the electric device is arranged in the cooling air duct.
In the scheme, the cooling air duct is formed between the shell and the cavity of the embedded microwave oven, the shell air inlet and the shell air outlet are both arranged on the front plate of the shell, the cooling air duct is designed to be completely positioned inside a product, air inlet and outlet are not influenced by the size of a cabinet, heat dissipation is stable and reliable, a good heat dissipation effect can be realized even when the size of the cabinet does not meet the design requirement, the problem that temperature rise of an electric device exceeds the standard is prevented, and therefore the safety and the stability of the product in operation are guaranteed.
And the embedded microwave oven among the prior art relies on the clearance between fuselage and cupboard to enter the wind or the air-out, therefore when using the microwave heating function, the vapor that discharges in the cavity can get into in the cupboard, can cause certain harm to the cupboard like this, influences the life of cupboard. The cooling air duct of the embedded microwave oven provided by the scheme is completely positioned in a product, and the air is exhausted from the front plate of the shell, so that the water vapor exhausted from the cavity is prevented from contacting with the inside of the cabinet, the cabinet is prevented from being damaged, and the service life of the cabinet can be prolonged.
In the above technical scheme, preferably, the cavity roof with form air inlet channel between the casing roof, the cavity back plate with form wind-guiding passageway between the casing after-hood, the cavity bottom plate with form down the air-out passageway between the casing bottom plate, air inlet channel wind-guiding passageway with down the air-out passageway communicates in proper order and constitutes cooling duct, the control box is located the top of the door body, just the control box with form the clearance between the door body, the casing air intake aims at the control box with clearance between the door body and with air inlet channel intercommunication, the casing air outlet includes air outlet under the casing, the air outlet is located under the casing the door body below and with air-out passageway intercommunication down.
In the embedded microwave oven in the prior art, air is generally discharged from a gap between the control box and the door body, so that hot air is blown out from the position of the control box, and the feeling of using a product by a user is influenced. The embedded microwave oven provided by the scheme is characterized in that air is fed from the gap between the control box and the door body and is discharged from the bottom end of the front plate of the shell, so that the air outlet position is far away from the control box, the control box is prevented from being contacted with hot air when a user operates the control box, and the use experience of the user is improved.
In any one of the above technical solutions, preferably, be equipped with the baffle in the inlet air duct, the baffle will the inlet air duct separates into anterior region and rear portion region, just be equipped with the ventilation hole on the baffle, the electrical part includes computer board, filter board, magnetron and transformer, the computer board with the filter board is installed in the anterior region, the magnetron with the transformer is installed in the rear portion region.
In the use process of the product, the magnetron and the transformer can generate more heat, the requirement of the computer board and the filter board on temperature rise control is higher, and the reliability of the product operation can be influenced due to the problem that the temperature rise exceeds the standard. This scheme is through the baffle with the computer board for this reason, filtering board and magnetron, the parts that generate heat such as transformer separate, install computer board and filtering board in the front region before the baffle, make the position of computer board and filtering board be close to the casing air intake, cool down computer board and filtering board through the low temperature air that has just inhaled in the casing, and the magnetron, the parts that generate heat such as transformer install in the rear region behind the baffle, be in the leeward side of computer board and filtering board, simultaneously under the baffle check, can reduce the magnetron by a wide margin, the rear region at transformer place is to the computer board, the front region transmission heat at filtering board place, consequently, can reduce the computer board by a wide margin, the temperature rise of filtering board, thereby guarantee the reliability of product operation.
In any of the above technical solutions, preferably, an upper heating tube is installed in the cavity, and the upper heating tube is installed near the top of the cavity and located below the rear area.
The design like this has enlarged computer board, filtering board and the distance of last heating tube, can reduce the influence of the produced thermal radiation of last heating tube to computer board, filtering board to can further reduce the temperature rise of computer board, filtering board, promote the reliability of product operation.
In any of the above technical solutions, preferably, the cooling fan is installed in the front area.
The existing product generally adopts a structure with a rear cooling fan, and the distance between the cooling fan and the product air inlet is designed to be too large, so that the negative pressure generated at the position of the product air inlet is lower, the amount of sucked air is less, and the electric device cannot be fully cooled. In this scheme, cooling blower's position is close to the casing air intake, has shortened cooling blower and air intake's distance by a wide margin to can increase casing air intake position negative pressure, improve the intake, and then promote the radiating effect of product.
In any of the above technical solutions, preferably, the cavity top plate is provided with a cavity air inlet, a cavity air outlet and an opening and closing control component, and the opening and closing control component is used for controlling the opening and closing of the cavity air inlet and the cavity air outlet.
In any one of the above technical solutions, preferably, the opening and closing control assembly includes a bidirectional motor and a baffle, the bidirectional motor is electrically connected to the computer board, the computer board is used for controlling the bidirectional motor to work, the baffle is connected to a motor shaft of the bidirectional motor, so that the bidirectional motor can drive the baffle to move relative to the cavity top plate, the baffle has a closed position and an open position relative to the cavity top plate, when the baffle is in the closed position, the baffle simultaneously seals the cavity air inlet and the cavity air outlet, and when the baffle is in the open position, the baffle simultaneously avoids the cavity air inlet and the cavity air outlet, so that the cavity air inlet and the cavity air outlet are simultaneously opened.
In the scheme, the computer board can control the forward rotation or the reverse rotation of the bidirectional motor, so that the bidirectional motor can drive the baffle to reciprocate, when a product is started to be heated by microwave, the bidirectional motor drives the baffle to move to an opening position, so that the air inlet and the air outlet of the cavity are simultaneously opened, the cavity is ventilated, and water vapor in the cavity is discharged; when the product is heated by hot air or barbecue, the bidirectional motor drives the baffle to move to the opening position and the closing position, so that the baffle seals the cavity air inlet and the cavity air outlet simultaneously, the temperature in the cavity can be rapidly increased, and the heating efficiency of the product is improved.
In any one of the above technical solutions, preferably, the opening and closing control assembly further includes a gear and a rack, the gear is fixedly mounted on a motor shaft of the bidirectional motor, the rack is fixedly mounted on the baffle, and the rack is always engaged with the gear.
In any of the above technical solutions, preferably, the opening/closing control assembly further includes a first position switch and a second position switch, the first position switch and the second position switch are respectively electrically connected to the computer board, the baffle abuts against the first position switch when reaching the closing position to trigger the first position switch, and the baffle abuts against the second position switch when reaching the opening position to trigger the second position switch.
This scheme judges whether the baffle has arrived closed position or open position through setting up first position switch and second position switch, when the product opened microwave heating, two-way motor drove the baffle motion to a side motion under the control of computer board, when the baffle reachs open position, the baffle contradicts with second position switch, trigger second position switch, make second position switch send trigger signal to the computer board, the computer board is according to trigger signal control two-way motor stall, thereby keep the baffle in open position, make cavity air intake and cavity air outlet open simultaneously. When the microwave heating is turned off, the bidirectional motor drives the baffle to move in the opposite direction under the control of the computer board, when the baffle reaches the closing position, the baffle is abutted against the first position switch to trigger the first position switch, so that the first position switch sends a trigger signal to the computer board, and the computer board controls the bidirectional motor to stop according to the trigger signal, so that the baffle is kept at the closing position, and the cavity air inlet and the cavity air outlet are simultaneously closed.
In any one of the above technical solutions, preferably, the cavity top plate includes a top plate body and a supporting plate, the top plate body is hermetically connected to the shell front plate, the cavity rear plate and the two cavity side plates, the supporting plate is mounted on an upper surface of the top plate body, and the air inlet channel is formed between the supporting plate and the shell top plate.
In any of the above technical solutions, preferably, the cavity air outlet includes a first air outlet disposed on the top plate body and a second air outlet disposed on the support plate and opposite to the first air outlet, the cavity air inlet includes a first air inlet disposed on the top plate body and a second air inlet disposed on the support plate, a cavity air inlet duct communicating the first air inlet and the second air inlet is disposed between the top plate body and the support plate, and the baffle plate can control opening and closing of the second air inlet and the second air outlet, where the first air inlet is close to the casing front plate, and the second air inlet and the second air outlet are located in the rear region.
When the product is started to be heated by microwave, the baffle plate opens the second air inlet and the second air outlet on the supporting plate, partial air in the air inlet channel enters the cavity air inlet channel between the supporting plate and the top plate body from the second air inlet, then reaches the first air inlet along the air inlet duct of the cavity, and then enters the cavity from the first air inlet, because the first air inlet is close to the front plate of the shell, the air entering from the first air inlet can push the air in the cavity to move towards the rear end of the cavity and finally sequentially passes through the first air outlet and the second air outlet to enter the cooling air duct, so that the water vapor in the cavity can be prevented from condensing on the inner surface of the door body, thereby guarantee that the door body window is clear visible, make the user can see the condition in the cavity clearly, and because first air outlet and second air outlet are located the rear portion region, consequently the exhaust air can not cause the influence to computer board and filtering board in the cavity.
In any of the above technical solutions, preferably, two wind shields extending in the front-rear direction are disposed in the rear region, the magnetron, the transformer, and the opening and closing control assembly are located between the two wind shields, and the vent hole of the partition plate, the second air inlet, and the second air outlet are aligned with a region between the two wind shields.
This scheme sets up two deep beads at the interval in rear portion region, and two deep beads all extend along the fore-and-aft direction, and the design has reduced the wind channel width in the rear portion region like this, and the electrical part in the rear portion region all installs at two deep beads, makes the air concentrate and flows through the electrical part to can promote the radiating effect.
In any one of the above technical solutions, preferably, one of the two wind deflectors is provided with a wind shielding surface protruding toward a space between the two wind deflectors, and the wind shielding surface is located behind the second air inlet.
The air flow is blocked by the wind blocking surface, so that the air inlet volume of the second air inlet can be increased, the ventilation effect of the cavity can be increased, and the water vapor of the cavity can be effectively discharged.
In any of the above technical solutions, preferably, the electric device further includes a hot air motor, and the hot air motor is installed in the air guide channel.
The hot air assembly is usually installed at the rear of the cavity of the embedded microwave oven, and the heat dissipation structure of the existing product cannot effectively dissipate heat of the hot air motor, so that the hot air motor must be wrapped by a thick heat insulation material, and a hot air motor heat dissipation fan needs to be added, so that the occupied space of the hot air assembly is large, the size of the cavity can only be reduced to enable the product to meet the specification, and the volume of the product is damaged. The cooling air duct of the embedded microwave oven provided by the scheme penetrates through the gap between the cavity back plate and the shell back cover, and the hot air motor is installed in the gap between the cavity back plate and the shell back cover, so that the temperature of the turntable motor can be effectively reduced, the thickness of a hot air motor heat insulation layer can be reduced, and a hot air motor cooling fan can be removed, so that the volume of the cavity can be increased, and the volume of a product is improved.
In any of the above technical solutions, preferably, the electric device further includes a turntable motor, and the turntable motor is installed in the lower air outlet channel.
When the lower heat-emitting pipe is installed at the bottom in the cavity, the heat radiation generated by the lower heat-emitting pipe has great influence on the turntable motor, and the conventional product cannot effectively dissipate heat of the turntable motor. The cooling air duct of the embedded microwave oven provided by the scheme penetrates through the gap between the cavity bottom plate and the shell bottom plate, and the turntable motor is arranged in the gap between the cavity bottom plate and the shell bottom plate, so that the temperature of the turntable motor can be effectively reduced.
In any of the above technical solutions, preferably, a side air outlet channel is formed between the two cavity side plates and the two shell side plates, and the shell air outlet further includes side air outlets located at left and right ends of the shell front plate and communicated with the side air outlet channel.
This scheme sets up the side air outlet in casing front bezel both sides on the basis of air-out down, increases both sides at casing front bezel both sides air-out passageway through the casing, has designed great product cooling air duct's coverage like this, has promoted the air-out effect simultaneously to can promote the holistic radiating effect of product.
In any of the above technical solutions, preferably, the built-in microwave oven further includes: the three air deflectors are respectively arranged at the front ends of the shell bottom plate and the two shell side plates and extend to the front of the shell front plate, so that the three air deflectors are respectively positioned at the outer sides of the lower air outlet and the side air outlets.
The air deflector is positioned at the outer side of the cavity air outlet, so that air exhausted from the cavity air outlet is prevented from contacting the cabinet, and the cabinet is prevented from being damaged by moisture in exhaust.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic side view of a microwave toaster oven according to an embodiment of the present invention;
FIG. 2 is a schematic view of the front view air intake and outlet principle of the built-in microwave oven shown in FIG. 1;
FIG. 3 is an exploded schematic view of the built-in microwave oven shown in FIG. 2;
FIG. 4 is a schematic view of the chamber shown in FIG. 3 (with the support plate removed);
FIG. 5 is a schematic sectional top view of the built-in microwave oven of FIG. 1 with microwave functionality turned on;
FIG. 6 is a schematic cross-sectional left side view of the built-in microwave oven of FIG. 5;
FIG. 7 is a schematic sectional top view of the built-in microwave oven of FIG. 1 with the microwave function turned off;
fig. 8 is a left side sectional structural view of the built-in microwave oven shown in fig. 7.
Wherein arrows in fig. 1, 2 and 5 to 8 represent air, and correspondence between reference numerals and component names in fig. 1 to 8 is:
101 casing front bezel, 1011 casing air intake, 1012 lower air outlet, 1013 side air outlet, 102 casing roof, 103 casing back cover, 104 casing bottom plate, 105 casing side plate, 106 door, 107 control box, 201 roof body, 2011 first air intake, 2012 first air outlet, 2013 cavity air inlet duct, 202 support plate, 2021 second air intake, 2022 second air outlet, 203 cavity back cover, 204 cavity bottom plate, 205 cavity side plate, 301 cooling fan, 401 hot air motor, 402 computer board, 403 filter board, 404 magnetron, 405 transformer, 406 turntable motor, 501 baffle, 5011 gap, 502 two-way motor, 503 gear, 504 rack, 505 first position switch, 506 second position switch, 601 upper heating tube, 701 baffle, 702, 703 wind deflector.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
An embodiment of the present invention provides an embedded microwave oven, as shown in fig. 1 to 8, including: the shell comprises a shell front plate 101, a shell top plate 102, a shell rear cover 103, a shell bottom plate 104 and two shell side plates 105, wherein the shell front plate 101 is provided with an opening; a door 106 mounted on a front surface of the case front plate 101 for controlling opening and closing of an opening of the case front plate 101; a control box 107 mounted on the front surface of the case front plate 101; the cavity is arranged in the shell and comprises a cavity top plate, a cavity back plate 203, a cavity bottom plate 204 and two cavity side walls 205, the front end of the cavity is fixedly connected with the shell front plate 101 and is aligned with the opening of the shell front plate 101, a cooling air channel is formed between the cavity and the shell, and a shell air inlet 1011 and a shell air outlet which are communicated with the cooling air channel are arranged at the position where the shell front plate 101 is not covered by the door body 106 and the control box 107; the cooling fan 301 is arranged in the cooling air duct and used for sucking air from the shell air inlet 1011 and supplying air to the shell air outlet through the cooling air duct; and the electric device is arranged in the cooling air duct.
In the scheme, the cooling air duct is formed between the shell and the cavity of the embedded microwave oven, the shell air inlet 1011 and the shell air outlet are both arranged on the shell front plate 101, the cooling air duct is designed to be completely positioned inside a product, air inlet and outlet are not affected by the size of a cabinet, heat dissipation is stable and reliable, even when the size of the cabinet does not meet the design requirement, a good heat dissipation effect can be realized, the problem that the temperature rise of an electric device exceeds the standard is prevented, and the safety and the stability of the product in operation are ensured.
The cavity top plate is provided with a cavity air inlet, a cavity air outlet and an opening and closing control assembly, and the opening and closing control assembly is used for controlling the opening and closing of the cavity air inlet and the cavity air outlet. The embedded microwave oven in the prior art relies on the clearance air inlet or the air outlet between fuselage and cupboard, when using the microwave heating function, only can control cavity air intake switch, can not control cavity air outlet switch, for guaranteeing that cavity central temperature rises rapidly, must control cavity air outlet quantity, causes the unable diffusion of cavity interior vapor, and vapor can flow into the cupboard through cavity gap and hot-blast subassembly assembly gap, causes certain harm to the cupboard, influences the life of cupboard. The cooling air duct of the embedded microwave oven provided by the scheme is completely positioned in a product, and the air is exhausted from the front plate 101 of the shell, so that the water vapor exhausted from the cavity is prevented from contacting with the inside of the cabinet, the cabinet is prevented from being damaged, and the service life of the cabinet can be prolonged.
Specifically, an air inlet channel is formed between the cavity top plate and the shell top plate 102, an air guide channel is formed between the cavity back plate 203 and the shell back cover 103, a lower air outlet channel is formed between the cavity bottom plate 204 and the shell bottom plate 104, the air inlet channel, the air guide channel and the lower air outlet channel are sequentially communicated to form a cooling air duct, the control box 107 is located above the door body 106, a gap is formed between the control box 107 and the door body 106, the shell air inlet 1011 aligns with the gap between the control box 107 and the door body 106 and is communicated with the air inlet channel, the shell air outlet comprises a shell lower air outlet 1012, and the shell lower air outlet 1012 is located below the door body 106 and is communicated with the.
In the embedded microwave oven in the prior art, air is generally discharged from a gap between the control box and the door body, so that hot air is blown out from the position of the control box, and the feeling of using a product by a user is influenced. The embedded microwave oven provided by the scheme has the advantages that air is fed from the gap between the control box 107 and the door body 106 and is discharged from the bottom end of the front shell plate 101, so that the air outlet position is far away from the control box 107, the control box 107 is guaranteed not to be contacted with hot air when being operated by a user, and the use feeling of the user is improved.
In the above embodiment, a partition 701 is provided in the air intake passage, the partition 701 divides the air intake passage into a front region and a rear region, and the partition 701 is provided with a vent hole, the electric device includes a computer board 402, a filter board 403, a magnetron 404 and a transformer 405, the computer board 402 and the filter board 403 are installed in the front region, and the magnetron 404 and the transformer 405 are installed in the rear region.
In the using process of a product, the magnetron 404 and the transformer 405 generate more heat, the computer board 402 and the filter board 403 have higher requirements on temperature rise control, and the reliability of the product operation is affected by the problem of excessive temperature rise. Therefore, the computer board 402 and the filter board 403 are separated from the heat generating components such as the magnetron 404 and the transformer 405 through the partition plate 701, the computer board 402 and the filter board 403 are installed in the front area of the partition plate 701, the computer board 402 and the filter board 403 are positioned close to the air inlet 1011 of the shell, the computer board 402 and the filter board 403 are cooled by low-temperature air which is just sucked into the shell, the heat generating components such as the magnetron 404 and the transformer 405 are installed in the rear area behind the partition plate 701 and are positioned at the leeward side of the computer board 402 and the filter board 403, and meanwhile, under the partition plate 701, the heat transmission from the rear area where the magnetron 404 and the transformer 405 are positioned to the front area where the computer board 402 and the filter board 403 are positioned can be greatly reduced, so that the temperature rise of the computer board 402 and the filter board 403 can be greatly reduced, and the reliability of the.
In the above embodiment, the cavity is provided with the upper heating tube 601, and the upper heating tube 601 is installed near the top of the cavity and below the rear region.
The design like this has enlarged computer board 402, filter board 403 and last heating tube 601's distance, can reduce the influence of the produced heat radiation of last heating tube 601 to computer board 402, filter board 403 to can further reduce the temperature rise of computer board 402, filter board 403, promote the reliability of product operation.
In the above embodiment, the cooling fan 301 is installed in the front area.
The existing product generally adopts a structure with a rear cooling fan, and the distance between the cooling fan and the product air inlet is designed to be too large, so that the negative pressure generated at the position of the product air inlet is lower, the amount of sucked air is less, and the electric device cannot be fully cooled. In this scheme, cooling fan 301's position is close to casing air intake 1011, has shortened the distance of cooling fan 301 and air intake by a wide margin to can increase casing air intake 1011 position negative pressure, improve the intake, and then promote the radiating effect of product.
In the above embodiment, preferably, side air outlet channels are respectively formed between the two cavity side walls 205 and the two shell side plates 105, and the shell air outlet further includes side air outlets 1013 communicated with the side air outlet channels, and the side air outlets 1013 are disposed on the shell front plate 101 and located at the left and right sides of the door body 106.
This scheme sets up side air outlet 1013 in casing front bezel 101 both sides on the basis of air-out down, increases both sides at casing front bezel 101 both sides air-out passageway through the casing, designs the coverage in great product cooling air duct like this, has promoted the air-out effect simultaneously to can promote the holistic radiating effect of product.
Specifically, the cavity top plate comprises a top plate body 201 and a supporting plate 202, the top plate body 201 is hermetically connected with the shell front plate 101, the cavity rear plate 203 and the two cavity side walls 205, the supporting plate 202 is installed on the upper surface of the top plate body 201, and an air inlet channel is formed between the supporting plate 202 and the shell top plate 102. The cavity air outlet comprises a first air outlet 2012 arranged on the top plate body 201 and a second air outlet 2022 arranged on the support plate 202 and opposite to the first air outlet 2012, the cavity air inlet comprises a first air inlet 2011 arranged on the top plate body 201 and a second air inlet 2021 arranged on the support plate 202, the second air inlet 2021 and the second air outlet 2022 are arranged side by side, a cavity air inlet duct 2013 communicating the first air inlet 2011 with the second air inlet 2021 is arranged between the top plate body 201 and the support plate 202, the baffle 501 can control the opening and closing of the second air inlet 2021 and the second air outlet 2022, wherein the first air inlet 2011 is close to the front shell plate 101, and the second air inlet 2021 and the second air outlet 2022 are positioned in the rear region. The opening and closing control component comprises a bidirectional motor 502, a baffle 501, a gear 503, a rack 504, a first position switch 505 and a second position switch 506, the bidirectional motor 502 is electrically connected with the computer board 402, the gear 503 is fixedly installed on a motor shaft of the bidirectional motor 502, the rack 504 is fixedly installed on the baffle 501, the rack 504 is always meshed with the gear 503, so that the bidirectional motor 502 can drive the baffle 501 to reciprocate along the direction of the connecting line of the second air inlet 2021 and the second air outlet 2022, the baffle 501 is approximately rectangular, a notch 5011 matched with the second air outlet 2022 is arranged on the baffle 501, the first position switch 505 and the second position switch 506 are respectively electrically connected with the computer board 402, the baffle 501 has a closing position and an opening position relative to the top plate of the cavity, when the baffle 501 is at the closing position, the baffle 501 simultaneously seals the second air inlet 2021 and the second air outlet 2022, and when the baffle 501 reaches the closing position, the first position switch 505 is abutted against, when the baffle 501 is in the open position, the baffle 501 is staggered from the second air inlet 2021, and the notch 5011 of the baffle 501 is aligned with the second air outlet 2022, so that the cavity air inlet and the cavity air outlet are simultaneously open, and when the baffle 501 reaches the open position, the baffle 501 collides with the second position switch 506 to trigger the second position switch 506.
When the product is heated by microwave, as shown in fig. 5 and 6, the two-way motor 502 drives the baffle 501 to move to one side under the control of the computer board 402, when the baffle 501 reaches the open position, the baffle 501 collides with the second position switch 506 to trigger the second position switch 506, so that the second position switch 506 sends a trigger signal to the computer board 402, and the computer board 402 controls the two-way motor 502 to stop according to the trigger signal, so as to keep the baffle 501 at the open position, and open the cavity air inlet and the cavity air outlet at the same time. Under the action of the heat dissipation motor, external air enters the air inlet channel from the air inlet 1011 of the housing to cool electric devices in the air inlet channel, part of the air in the air inlet channel enters the cavity air inlet channel 2013 between the support plate 202 and the top plate body 201 from the second air inlet 2021, then reaches the first air inlet 2011 along the cavity air inlet channel 2013, and then enters the cavity from the first air inlet 2011, because the first air inlet 2011 is close to the front plate 101 of the housing, the air entering from the first air inlet 2011 pushes the air in the cavity to move towards the rear end of the cavity, and finally sequentially passes through the first air outlet 2012 and the second air outlet 2022 to enter the cooling air channel, so that water vapor in the cavity can be prevented from condensing on the inner surface of the door body 106, thereby ensuring that a window of the door body 106 is clearly visible, a user can clearly see the conditions in the cavity, and because the first air outlet 2012 and the, therefore, the air exhausted from the cavity does not affect the computer board 402 and the filter board 403. The air in the air inlet channel, which does not enter the second air inlet 2021, and the air returning to the air inlet channel from the second air outlet 2022 both enter the air guiding channel, then enter the lower air outlet channel and the side air outlet channel from the air guiding channel, and finally are discharged out of the product through the upper and lower air outlets 1012 and the side air outlet 1013 of the front plate 101 of the housing.
When the microwave heating is turned off, as shown in fig. 7 and 8, the bidirectional motor 502 drives the baffle 501 to move in the opposite direction under the control of the computer board 402, when the baffle 501 reaches the closed position, the baffle 501 collides with the first position switch 505 to trigger the first position switch 505, so that the first position switch 505 sends a trigger signal to the computer board 402, and the computer board 402 stops the bidirectional motor 502 according to the trigger signal, so as to keep the baffle 501 at the closed position, and close the second air inlet 2021 and the second air outlet 2022 at the same time. Under the action of the heat dissipation motor, outside air enters the air inlet channel from the air inlet 1011 of the shell, cools the electric devices in the air inlet channel, enters the air guide channel from the air inlet channel, enters the lower air outlet channel and the side air outlet channel from the air guide channel, and is finally discharged out of the product from the upper air outlet 1012 and the lower air outlet 1013 of the front plate 101 of the shell.
In the above embodiment, two wind deflectors 702 extending in the front-rear direction are provided in the rear region, the magnetron 404, the transformer 405, and the opening-closing control assembly are located between the two wind deflectors 702, and the vent hole of the partition 701, the second air inlet, and the second air outlet 2022 are aligned with the region between the two wind deflectors 702.
This scheme sets up two deep beads 702 at the interval in rear portion region, and two deep beads 702 all extend along the fore-and-aft direction, and the design has reduced the wind channel width in the rear portion region like this, and two deep beads 702 are all installed to the electrical part in the rear portion region, make the air concentrate and flow through the electrical part to can promote the radiating effect.
In the above embodiment, one of the two wind deflectors 702 is provided with a wind shielding surface protruding toward between the two wind deflectors 702, and the wind shielding surface is located behind the second wind inlet 2021.
The air flow is blocked by the wind blocking surface, so that the air inlet volume of the second air inlet 2021 can be increased, the ventilation effect of the cavity can be improved, and the water vapor in the cavity can be effectively discharged.
In the above embodiment, the electric device further includes a hot air motor 401, and the hot air motor 401 is installed in the air guide passage.
The hot air assembly is usually installed at the rear of the cavity of the embedded microwave oven, and the heat dissipation structure of the existing product cannot effectively dissipate heat of the hot air motor, so that the hot air motor must be wrapped by a thick heat insulation material, and a hot air motor heat dissipation fan needs to be added, so that the occupied space of the hot air assembly is large, the size of the cavity can only be reduced to enable the product to meet the specification, and the volume of the product is damaged. The cooling air duct of the embedded microwave oven provided by the scheme penetrates through the gap between the cavity back plate 203 and the shell rear cover 103, and the hot air motor 401 is arranged in the gap between the cavity back plate 203 and the shell rear cover 103, so that the temperature of the turntable motor 406 can be effectively reduced, the thickness of a heat insulation layer of the hot air motor 401 can be reduced, and a heat radiation fan of the hot air motor 401 can be removed, so that the volume of the cavity can be increased, and the volume of a product can be improved.
In the above embodiment, the electric device further includes the turntable motor 406, and the turntable motor 406 is installed in the air outlet passage.
When the lower heat-emitting pipe is installed at the bottom in the cavity, the heat radiation generated by the lower heat-emitting pipe has a large influence on the turntable motor 406, and the conventional product cannot effectively dissipate heat of the turntable motor 406. The cooling air duct of the embedded microwave oven provided by the scheme penetrates through the gap between the cavity bottom plate 204 and the shell bottom plate 104, and the turntable motor 406 is arranged in the gap between the cavity bottom plate 204 and the shell bottom plate 104, so that the temperature of the turntable motor 406 can be effectively reduced.
In the above embodiment, the built-in microwave oven further comprises: the three air deflectors 703 are respectively mounted at the front ends of the bottom plate 104 and the two side plates 105 of the casing, and the three air deflectors 703 extend to the front of the front plate 101 of the casing, so that the three air deflectors 703 are respectively positioned at the outer sides of the lower air outlet 1012 and the side air outlet 1013.
The air deflector 703 is located outside the cavity air outlet to prevent the air exhausted from the cavity air outlet from contacting the cabinet, thereby preventing the cabinet from being damaged by moisture in the exhaust air.
In the description of the present invention, the terms "upper", "lower", "top", "bottom", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly stated or limited otherwise; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the description of the invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, the terms "connect", "mount", "fix", etc. should be interpreted broadly, for example, the term "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art of the present invention according to specific situations.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A built-in microwave oven, comprising:
the shell comprises a shell front plate, a shell top plate, a shell rear cover, a shell bottom plate and two shell side plates, wherein an opening is formed in the shell front plate;
the door body is arranged on the front surface of the front plate of the shell and used for controlling the opening and the closing of the opening of the front plate of the shell;
a control box mounted on a front surface of the case front plate;
the cavity is arranged in the shell and comprises a cavity top plate, a cavity rear plate, a cavity bottom plate and two cavity side plates, the front end of the cavity is fixedly connected with the shell front plate and is aligned with an opening of the shell front plate, a cooling air channel is formed between the cavity and the shell, and a shell air inlet and a shell air outlet which are communicated with the cooling air channel are arranged at the positions, which are not covered by the door body and the control box, of the shell front plate;
the cooling fan is arranged in the cooling air duct and used for sucking air from the shell air inlet and supplying air to the shell air outlet through the cooling air duct;
an electric device installed in the cooling air duct;
the cavity top plate is provided with a cavity air inlet, a cavity air outlet and an opening and closing control assembly, and the opening and closing control assembly is used for controlling the opening and closing of the cavity air inlet and the cavity air outlet;
an air inlet channel is formed between the cavity top plate and the shell top plate; a partition plate is arranged in the air inlet channel and divides the air inlet channel into a front area and a rear area; the opening and closing control assembly comprises a bidirectional motor and a baffle plate;
the cavity top plate comprises a top plate body and a supporting plate, the top plate body is hermetically connected with the shell front plate, the cavity rear plate and the two cavity side plates, the supporting plate is installed on the upper surface of the top plate body, and the air inlet channel is formed between the supporting plate and the shell top plate;
the cavity air outlet comprises a first air outlet arranged on the top plate body and a second air outlet arranged on the supporting plate and opposite to the first air outlet, the cavity air inlet comprises a first air inlet arranged on the top plate body and a second air inlet arranged on the supporting plate, a cavity air inlet duct communicated with the first air inlet and the second air inlet is arranged between the top plate body and the supporting plate, and the baffle can control the opening and closing of the second air inlet and the second air outlet,
the first air inlet is close to the front plate of the shell, and the second air inlet and the second air outlet are located in the rear area.
2. The built-in microwave oven according to claim 1,
the cavity back plate with form the wind-guiding passageway between the casing rear shroud, the cavity bottom plate with form down the air-out passageway between the casing bottom plate, air inlet channel the wind-guiding passageway with the air-out passageway feeds through in proper order down and constitutes cooling duct, the control box is located the top of the door body, just the control box with form the clearance between the door body, the casing air intake is aimed at the control box with clearance between the door body and with air inlet channel intercommunication, the casing air outlet includes air outlet under the casing, the air outlet is located under the casing the door body below and with air-out passageway intercommunication down.
3. The built-in microwave oven according to claim 2,
the partition board is provided with a ventilation hole, the electric device comprises a computer board, a filtering board, a magnetron and a transformer, the computer board and the filtering board are installed in the front area, and the magnetron and the transformer are installed in the rear area.
4. The built-in microwave oven according to claim 3,
the heating tube is arranged in the cavity, the upper heating tube is close to the top of the cavity and is arranged below the rear area.
5. The built-in microwave oven according to claim 3,
the cooling fan is mounted in the front region.
6. The built-in microwave oven according to claim 3,
the utility model discloses a two-way motor, including two-way motor, computer board, baffle, cavity air inlet, cavity air outlet, cavity roof, baffle, cavity air inlet, cavity air outlet, baffle, cavity roof, cavity air inlet, cavity air outlet, cavity air inlet, cavity air outlet, baffle, cavity roof, baffle.
7. The built-in microwave oven according to claim 6,
the opening and closing control assembly further comprises a gear and a rack, the gear is fixedly installed on a motor shaft of the bidirectional motor, the rack is fixedly installed on the baffle, and the rack is always meshed with the gear.
8. The built-in microwave oven according to claim 6,
the opening and closing control assembly further comprises a first position switch and a second position switch, the first position switch and the second position switch are respectively electrically connected with the computer board, the baffle plate abuts against the first position switch when reaching the closing position so as to trigger the first position switch, and the baffle plate abuts against the second position switch when reaching the opening position so as to trigger the second position switch.
9. The built-in microwave oven according to claim 6,
the magnetron, the transformer and the opening and closing control assembly are located between the two wind shields, and the vent hole of the partition plate, the second air inlet and the second air outlet are all aligned to the area between the two wind shields.
10. The built-in microwave oven according to claim 9,
one of the two wind shields is provided with a wind shielding surface protruding between the two wind shields, and the wind shielding surface is positioned behind the second air inlet.
11. The built-in microwave oven according to any one of claims 2 to 10,
the electric device further comprises a hot air motor, and the hot air motor is installed in the air guide channel.
12. The built-in microwave oven according to any one of claims 2 to 10,
the electric device further comprises a turntable motor, and the turntable motor is installed in the lower air outlet channel.
13. The built-in microwave oven according to any one of claims 2 to 10,
the two cavity side plates and the two shell side plates form side air outlet channels with the lower air outlet channel respectively, and the shell air outlet further comprises side air outlets which are located at the left end and the right end of the shell front plate and communicated with the side air outlet channels.
14. The built-in microwave oven of claim 13, further comprising:
the three air deflectors are respectively arranged at the front ends of the shell bottom plate and the two shell side plates and extend to the front of the shell front plate, so that the three air deflectors are respectively positioned at the outer sides of the lower air outlet and the side air outlets.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752299.XA CN107550308B (en) | 2017-08-28 | 2017-08-28 | Embedded microwave oven |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710752299.XA CN107550308B (en) | 2017-08-28 | 2017-08-28 | Embedded microwave oven |
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| CN107550308A CN107550308A (en) | 2018-01-09 |
| CN107550308B true CN107550308B (en) | 2020-08-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107495846A (en) * | 2017-09-07 | 2017-12-22 | 广东美的厨房电器制造有限公司 | The glass door and cooking apparatus of cooking apparatus |
| CN110089950A (en) * | 2018-01-31 | 2019-08-06 | 青岛海尔智慧厨房电器有限公司 | Baking oven |
| CN110652219B (en) * | 2018-06-28 | 2021-09-28 | 佛山市顺德区美的电热电器制造有限公司 | Baking appliance |
| CN111096684B (en) * | 2018-10-25 | 2022-06-21 | 宁波方太厨具有限公司 | Embedded oven |
| CN111096686B (en) * | 2018-10-25 | 2022-08-02 | 宁波方太厨具有限公司 | Embedded oven |
| CN111096687B (en) * | 2018-10-25 | 2023-02-28 | 宁波方太厨具有限公司 | Embedded oven |
| CN111096685B (en) * | 2018-10-25 | 2022-07-26 | 宁波方太厨具有限公司 | Embedded oven |
| CN109549506B (en) * | 2018-11-30 | 2020-12-11 | 广东美的厨房电器制造有限公司 | Microwave oven |
| CN110558821B (en) * | 2019-09-15 | 2021-01-19 | 宁波方太厨具有限公司 | Hot air baffle and cooking device with same |
| CN110916521A (en) * | 2019-12-09 | 2020-03-27 | 珠海格力电器股份有限公司 | Airflow generation device and oven |
| CN111227669B (en) * | 2020-01-14 | 2022-10-04 | 宁波方太厨具有限公司 | Inner container structure and oven with same |
| CN112056948A (en) * | 2020-09-29 | 2020-12-11 | 青岛汉尚电器有限公司 | Baking equipment |
| CN112168008B (en) * | 2020-09-30 | 2022-01-14 | 宁波方太厨具有限公司 | Electric oven |
| CN112393281A (en) * | 2020-11-13 | 2021-02-23 | 广东美的厨房电器制造有限公司 | Embedded cooking utensil and cooking system |
| CN112377957A (en) * | 2020-11-13 | 2021-02-19 | 广东美的厨房电器制造有限公司 | Embedded cooking utensil and cooking system |
| CN112361397B (en) * | 2020-11-13 | 2023-03-17 | 广东美的厨房电器制造有限公司 | Cooking equipment and cooking system |
| CN114601324B (en) * | 2020-12-07 | 2023-05-30 | 广东美的厨房电器制造有限公司 | Cooking apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104633726B (en) * | 2013-11-11 | 2017-05-24 | 广东美的厨房电器制造有限公司 | Drawer-type microwave oven |
| CN205447882U (en) * | 2015-12-28 | 2016-08-10 | 广东美的厨戭电器制造有限公司 | Microwave cooking device |
| CN105910144A (en) * | 2016-05-27 | 2016-08-31 | 广东美的厨房电器制造有限公司 | Microwave oven |
| CN105873260B (en) * | 2016-05-30 | 2022-01-25 | 广东美的厨房电器制造有限公司 | Built-in cooking appliance |
| CN205860134U (en) * | 2016-06-28 | 2017-01-04 | 广东美的厨房电器制造有限公司 | Heat cooking apparatus |
| CN206626630U (en) * | 2017-03-17 | 2017-11-10 | 青岛兴邦烤箱有限公司 | Micro-wave oven monoblock type ventilating system |
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