CN104121610A - Efficient heat radiation embedded type microwave oven - Google Patents
Efficient heat radiation embedded type microwave oven Download PDFInfo
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- CN104121610A CN104121610A CN201310339366.7A CN201310339366A CN104121610A CN 104121610 A CN104121610 A CN 104121610A CN 201310339366 A CN201310339366 A CN 201310339366A CN 104121610 A CN104121610 A CN 104121610A
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Abstract
The invention discloses an efficient heat radiation embedded type microwave oven. The efficient heat radiation embedded type microwave oven comprises a surface frame, a shell, and a cooking cavity and an electric appliance chamber which are arranged in the shell and are arrayed side by side, wherein air inlets are formed in the two sides of the surface frame; air outlets are formed in the upper and lower ends of the surface frame; a gap between the surface of the shell and the inner wall of a preformed hole in a cupboard forms an air inlet channel; air guide covers are arranged on the top face and the bottom face of the shell; a separation plate is arranged in the middle of the electric appliance chamber. The efficient heat radiation embedded type microwave oven adopts an independent cooling air flue design, and a speed changing fan and a temperature probe are matched so that the cooling air amount and the air pressure can be flexibly adjusted, and the cooling effect is improved; the separation plate in the electric appliance chamber is used for dividing airflow into upper and lower paths for respectively cooling different electrical apparatus elements, so that the cooling effect is preferable.
Description
Technical field
The present invention relates to a kind of micro-wave oven, refer more particularly to the built-in microwave oven that a kind of good heat dissipation effect, fire door glass are difficult for hazing.
Background technology
Along with the progressively raising of people's living standard and the pay attention to day by day of health perception, clean integral cabinet attractive in appearance has been come into huge numbers of families, common microwave stove is also designed to embedded being placed in cabinet, because cabinet inner space is narrow, configuration is compact, the heat dissipation ventilation of micro-wave oven is not good, higher internal temperature gently easily causes micro-wave oven to damage or shorten service life, heavy easily cause that wooden cabinet damages or initiation fire, in order to solve the heat radiation of built-in microwave oven, China Patent No. is ZL201020049960.4's, name is called a kind of utility model patent of high efficiency and heat radiation built-in microwave oven, the cooling down mode of built-in microwave oven is disclosed, by being set in micro-wave oven, the air blast cooling measure of cooling blower takes away micro-wave oven dissipation from electronic devices and food heat dissipation capacity, prevent the damage of micro-wave oven or the generation of fire, but due to this cooling air channel, arranging of air intake air outlet is unreasonable, radiating effect is poor, and the temperature difference of fire door viewing glass both sides produces aerosol compared with great Yi, to use, make troubles.
Summary of the invention
The present invention mainly solves existing built-in microwave oven cooling air channel, inlet and outlet design is unreasonable, and radiating effect is poor, and fire door viewing glass temperature difference produces the technical problem of aerosol compared with great Yi; The built-in microwave oven that provides a kind of good heat dissipation effect, fire door glass to be difficult for hazing.
In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposals:
A kind of high efficiency and heat radiation built-in microwave oven of the present invention, be flush-mounted in cabinet, comprise face frame, shell, be placed in shell and the cooking cavity and the electric apparatus room that are arranged side by side, described frame and cabinet preformed hole match, the two side of described cooking cavity is provided with air vent, described frame is provided with fire door, control panel, in described electric apparatus room, place magnetron, bulb, transformer, the electric elements such as electric capacity and electric-controlled plate, the back side of electric apparatus room is provided with perforate, described perforate is provided with cooling blower, the left and right sides of described frame or the one-sided air admission hole that is provided with, the upper and lower two ends of face frame are respectively equipped with venthole and lower production well, space between described case surface and cabinet preformed hole inwall forms inlet channel, the front end of described inlet channel is communicated with described air admission hole, described sheath top plate is provided with vent, cover top portion is provided with the upper wind scooper affixed with sheath top plate, the front end of described upper wind scooper communicate with described upper venthole and integral cover on vent, cooking cavity is communicated with electric apparatus room by the air vent of a side, cooling blast flow to cooking cavity from electric apparatus room and also passes successively the air vent of cooking cavity opposite side, the upper vent of sheath top plate enters outside wind scooper discharge machine, shell bottom plate is provided with the lower vent that connects electric apparatus room bottom surface, outer casing bottom is provided with the lower wind scooper affixed with shell bottom plate, the front end of described lower wind scooper be communicated with described lower production well and integral cover under vent, cooling blast enters outside the interior discharge machine of lower wind scooper through lower vent, adopt cooling blower to electric apparatus room and cooking cavity, to force cooling respectively, good heat dissipation effect, simultaneously, the design of upper wind scooper and lower wind scooper has also improved flow velocity and the blast of air-flow, guarantee that cooling blast pressure drop is lower and can not form turbulent flow.
As preferably, described electric apparatus room middle part is provided with the dividing plate of level, described dividing plate is divided into upper and lower two chambers by electric apparatus room, upper chamber is placed magnetron, bulb, lower chamber is placed transformer, electric capacity and control panel, the cooling blast that dividing plate sucks cooling blower is divided into upper and lower two strands, one cooling blast is blown over magnetron, air vent through electric apparatus room and the total sidewall of cooking cavity after bulb enters cooking cavity, another strand of cooling blast blown over transformer, lower vent through electric apparatus room base plate after electric capacity and control panel enters in lower wind scooper, demarcation strip is set in electric apparatus room, cooling blast is separated into upper and lower two strands, to different electric elements, carry out cooling respectively, good cooling results, simultaneously, part air-flow enters in cooking cavity by the air vent of electric apparatus room and the common sidewall of cooking cavity, mix and carry part heat and the steam of heat food generation, from the air vent of cooking cavity opposite side, enter in wind scooper outside discharge machine, another part air-flow lower steam vent by electric apparatus room bottom surface enters in lower wind scooper outside discharge machine, this part air-flow is not because mixing with the air-flow in cooking cavity, dry and clean, cooling blast is divided into two strands, according to different cooling objects, adopt different circulation paths, radiating effect significantly and do not interfere with one another.
As preferably, fire door on described frame is hollow form, fire door is provided with observation window, face arch end face and bottom end face are equipped with through hole, described through hole communicates with the hollow cavity of fire door, fire door bottom through hole communicates with lower wind scooper, fire door top through hole communicates with upper wind scooper, the drier hot blast that discharge electric apparatus room bottom flows out from lower wind scooper, a part is directly from lower production well discharge machine, another part through hole by fire door bottom end face enters in the hollow cavity of fire door and the viewing glass of flowing through, and flow out from the through hole of fire door top end face, together with the hot blast of discharging with upper wind scooper outside upper venthole discharge machine, improved the temperature in hollow cavity, reduced the temperature difference of viewing glass both sides, make observation window lean on a side glass surface of cooking cavity to be not easy to haze or dewfall.
As preferably, described air admission hole is located on the sidewall of described frame, described fire door upper and lower end face and face frame are provided with gap, upper venthole direction on face frame is down and over against fire door top end face, lower production well direction on face frame down and be right against fire door bottom end face, the thermal current of discharging is sprayed onto in described gap and by fire door end face and is stopped and turn to outside discharge machine by upper venthole and lower production well, upper venthole and lower production well are arranged in the gap of fire door and face frame, gas outlet is hidden, can not affect the outward appearance of micro-wave oven.
As preferably, described fire door top end faces outer downward-sloping, and described fire door bottom end face is inclined upwardly outwardly, and the thermal current vapour lock that the fire door end face of inclination can make micro-wave oven discharge is little, the hot and cold air property separated is better, avoids air admission hole again to suck hot-air and causes cooling effect not good.
As preferably, described upper venthole and lower production well are all grid-like, and pore draught area is large, and gas-flow resistance is little.
As preferably, the tapping at the described electric apparatus room back side is provided with screen pack, and screen pack can prevent that impurity or little article from entering electric apparatus room and causing equipment fault or damage, also prevents that electronic device surface area dust from causing heat radiation variation.
As preferably, the front end of described upper wind scooper is flat narrow and dock described upper venthole gradually, the front end of described lower wind scooper is flat narrow and dock described lower production well gradually, the wind scooper front end of flat can improve the air velocity of exhaust, make the hot blast flow velocity of discharge faster, blast is higher, and spray hot wind obtains farther, has reduced the possibility that hot and cold air mixes.
As preferably, described cooling blower is variable speed electric motors, particularly, in described upper wind scooper and lower wind scooper, be equipped with the temp probe being electrically connected to control panel, adopt speed-changing draught fan and in conjunction with the temp probe in wind scooper, the gas flow temperature of discharging in the time of can detecting in real time micro-wave oven work, while surpassing design temperature as the temperature of air-flow, illustrate that cooling air quantity is inadequate or blast is on the low side, radiating effect is poor, there is potential safety hazard, now the rotating speed of cooling blower can be improved, air flow rate is increased or blast raising, more the cooling blast of various flow can be taken away more heat, reduce the surface temperature of electric elements, guarantee the normal work of micro-wave oven.
The invention has the beneficial effects as follows: adopt independently micro-wave oven cooling air channel design, coordinate the setting of speed-changing draught fan and temp probe, can flexible modulation cooling air quantity and blast, save the energy, promote cooling effect, and dividing plate is set in electric apparatus room, cooling blast is separated into upper and lower two strands, to the electric elements of different temperatures, carry out cooling respectively, the cooling blast compared with dry cleansing of lower chamber enters in the hollow cavity of fire door, reduced the temperature difference of viewing glass both sides, made viewing glass surface be difficult for hazing or dewfall.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the backsight structural representation of Fig. 1.
Fig. 3 is the exploded perspective view of Fig. 1 structure.
Fig. 4 is the cooking cavity structural representation in Fig. 1
Fig. 5 is the door structure schematic diagram in Fig. 1.
Fig. 6 is the internal gas flow flow schematic diagram of Fig. 1 structure.
1. frames in figure, 11. fire doors, 12. control panels, 13. air admission holes, venthole on 14., 15. lower production wells, 16. hollow cavities, 17. through holes, 18. observation windows, 19. gaps, 2. shell, vent on 21., wind scooper on 22., 23. times vents, 24. times wind scoopers, 3. cooking cavity, 31. air vents, 4. electric apparatus room, 41. magnetrons, 42. bulbs, 43. transformers, 44. electric capacity, 45. perforates, 46. cooling blowers, 47. dividing plates, 5. cabinet, 51. inlet channels.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of high efficiency and heat radiation built-in microwave oven of the present embodiment 1, be flush-mounted in cabinet 5, as Fig. 1, shown in Fig. 2 and Fig. 3, comprise face frame 1, shell 2, be placed in shell and the cooking cavity 3 and the electric apparatus room 4 that are arranged side by side, cooking cavity and electric apparatus room have a common sidewall paneling, face frame and cabinet preformed hole match, micro-wave oven is embedded in cabinet and form an integral body with cabinet, on face frame, be designed with fire door 11 and control panel 12, fire door upper and lower end face and face frame are provided with gap 19, in the left and right sides of face frame, be designed with air admission hole 13, both ends of the surface up and down at face frame are designed with respectively grid-like upper venthole 14 and lower production well 15, upper venthole direction on face frame is down and over against fire door top end face, lower production well on face frame is directed upwardly and is right against fire door bottom end face, fire door top end faces gradually wide gap of outer downward-sloping formation, fire door bottom end face is inclined upwardly outwardly and forms gradually wide gap, space between case surface and cabinet preformed hole inwall forms inlet channel 51, the front end of inlet channel is communicated with air admission hole, on having in sheath top plate, vent 21, cover top portion be provided with top board fastening be wind scooper 22 on cuboid, the front end of upper guide housing is gradually flat narrow and to connecting vent on venthole integral cover, good airproof performance, on shell bottom plate, have the lower vent 23 that connects electric apparatus room bottom surface, at outer casing bottom, wind scooper 24 under the cuboid affixed with shell bottom plate is installed, vent under the front end of lower wind scooper gradually flat and docking lower production well integral cover, as shown in Figure 4, on the two side of cooking cavity, all have air vent 31, as shown in Figure 6, at the back side of electric apparatus room, be designed with perforate 45, cooling blower 46 is installed in perforate, middle part in electric apparatus room is designed with the dividing plate 47 of level, dividing plate is divided into upper and lower two chambers by electric apparatus room, upper chamber is placed magnetron 41, bulb 42, lower chamber arranges transformer 43, electric capacity 44 and control panel, the cooling blast that cooling blower sucks is upper and lower two strands by baffle for separating, one blows over magnetron, after bulb, through the air vent on electric apparatus room and the common sidewall of cooking cavity, enter cooking cavity, another thigh is blown over transformer, after electric capacity and control panel, through the lower vent on electric apparatus room base plate, enter in lower wind scooper.
Cooling blast direction when micro-wave oven uses as shown in Figure 6, open cooling blower, Air Flow causes generation negative pressure in air intake passage, cool ambient air is entered continuously air intake passage and is inhaled in electric apparatus room by the air admission hole of face frame both sides, the cold air sucking is become two strands of air-flows by the baffle for separating in electric apparatus room, one air-flow is blown over the magnetron of upper chamber, bulb is directed to the air vent of electric apparatus room sidewall and enters cooking cavity through air vent by lampshade after absorbing heat dissipation capacity, mix and carry part heat and the steam that heat food produces and flow to wind scooper from the opposite side air vent of cooking cavity, mixed airflow along upper wind scooper gradually the front end of flat narrow promote after flow velocity through outside upper venthole discharge machine, and another strand of air-flow blown over the transformer of lower chamber, electric capacity, control panel enters in lower guide housing through lower steam vent after absorbing heat, and along lower wind scooper gradually the front end of flat narrow promote after flow velocity through outside lower production well discharge machine, the cold and hot isolation of whole cooling procedure, good heat dissipation effect, in electric apparatus room, temperature rise is less, greatly extended the use of microwave ovens life-span.
Embodiment 2: a kind of high efficiency and heat radiation built-in microwave oven of the present embodiment 2, comprise face frame, shell, be placed in shell and the cooking cavity and the electric apparatus room that are arranged side by side, on face frame, be designed with fire door and control panel, as shown in Figure 5, fire door is hollow form, on fire door, be designed with observation window 18, at the top of face frame end face and bottom end face, all have through hole 17, through hole communicates with the hollow cavity 16 of fire door, fire door hollow cavity communicates with lower wind scooper by the through hole of fire door bottom end face, fire door hollow cavity communicates with upper wind scooper by the through hole of fire door top end face, a cooling blast part for the dry cleansing of discharging from electric apparatus room lower chamber along wind scooper directly through outside lower production well discharge machine, another part enters in the hollow cavity of fire door by fire door bottom through hole, promoted the air themperature in hollow cavity, the corresponding temperature difference that reduces fire door viewing glass both sides, guaranteed that viewing glass is difficult for hazing or dewfall, the other parts of the present embodiment 2 all with the appropriate section of embodiment 1 roughly the same, repeat no more herein.
Embodiment 3: a kind of high efficiency and heat radiation built-in microwave oven of the present embodiment 3, be flush-mounted in cabinet, comprise face frame, shell, be placed in shell and the cooking cavity and the electric apparatus room that are arranged side by side, tapping at the electric apparatus room back side is provided with screen pack, screen pack can prevent that cooling blower from sucking impurity, dust or foreign matter and entering and in electric apparatus room, cause high-voltage electrical apparatus short circuit or damage electric elements, also can prevent that the electric elements surfaces laying dust variation that makes to dispel the heat from causing fault, the other parts of the present embodiment 3 all with the appropriate section of embodiment 1 roughly the same, repeat no more herein.
Embodiment 4: a kind of high efficiency and heat radiation built-in microwave oven of the present embodiment 4, be flush-mounted in cabinet, comprise face frame, shell, be placed in shell and the cooking cavity and the electric apparatus room that are arranged side by side, the back side of electric apparatus room is designed with perforate, cooling blower is installed in perforate, cooling blower is variable speed electric motors, particularly, in upper wind scooper and lower wind scooper, the temp probe being electrically connected to control panel is all installed, during micro-wave oven work, delivery temperature on temp probe Real-Time Monitoring in wind scooper and in lower wind scooper, when delivery temperature surpasses design temperature, cooling blower rotating speed improves, strengthen suction air volume and blast, improving radiating effect, prevent that the electric elements in electric apparatus room are overheated, the other parts of the present embodiment 4 all with the appropriate section of embodiment 1 roughly the same, repeat no more herein.
More than explanation has not been done restriction to the present invention; the present invention is also not limited only to giving an example of above-mentioned explanation; the variation that those skilled in the art make in essential scope of the present invention, retrofit, increase or replace, all should be considered as protection scope of the present invention.
Claims (9)
1. a high efficiency and heat radiation built-in microwave oven, be flush-mounted in cabinet (5), comprise face frame (1), shell (2), be placed in shell and the cooking cavity (3) and the electric apparatus room (4) that are arranged side by side, described frame and cabinet preformed hole match, the two side of described cooking cavity is provided with air vent (31), described frame is provided with fire door (11) and control panel (12), in described electric apparatus room, place magnetron (41), bulb (42), transformer (43), the electric elements such as electric capacity (44) and electric-controlled plate, the back side of electric apparatus room is provided with perforate (45), described perforate is provided with cooling blower (46), it is characterized in that: the left and right sides of described frame or the one-sided air admission hole (13) that is provided with, the upper and lower two ends of face frame are respectively equipped with venthole (14) and lower production well (15), space between described case surface and cabinet preformed hole inwall forms inlet channel (51), the front end of described inlet channel is communicated with described air admission hole, described sheath top plate is provided with vent (21), cover top portion is provided with the upper wind scooper (22) affixed with sheath top plate, the front end of described upper wind scooper communicate with described upper venthole and integral cover on vent, cooking cavity is communicated with electric apparatus room by the air vent of a side, shell bottom plate is provided with the lower vent (23) that connects electric apparatus room bottom surface, outer casing bottom is provided with the lower wind scooper (24) affixed with shell bottom plate, the front end of described lower wind scooper be communicated with described lower production well and integral cover under vent.
2. a kind of high efficiency and heat radiation built-in microwave oven according to claim 1, it is characterized in that: described electric apparatus room (4) middle part is provided with the dividing plate (47) of level, described dividing plate is divided into upper and lower two chambers by electric apparatus room, upper chamber is placed magnetron (41), bulb (42), lower chamber is placed transformer (43), electric capacity (44) and control panel, the cooling blast that dividing plate sucks cooling blower is divided into upper and lower two strands, one cooling blast is blown over magnetron, air vent through electric apparatus room and the total sidewall of cooking cavity (3) after bulb enters cooking cavity, another strand of cooling blast blown over transformer, lower vent (23) through electric apparatus room base plate after electric capacity and control panel enters in lower wind scooper (24).
3. a kind of high efficiency and heat radiation built-in microwave oven according to claim 1 and 2, it is characterized in that: the fire door (11) on described frame (1) is hollow form, fire door is provided with observation window (18), fire door top end face and bottom end face are equipped with through hole (17), described through hole communicates with the hollow cavity (16) in fire door, the bottom through hole of fire door communicates with lower wind scooper (24), and the top through hole of fire door communicates with upper wind scooper (22).
4. a kind of high efficiency and heat radiation built-in microwave oven according to claim 1, it is characterized in that: described air admission hole (13) is located on the sidewall of described frame (1), described fire door (11) upper and lower end face and face frame are provided with gap (19), upper venthole (14) direction on face frame is down and over against fire door top end face, and the lower production well on face frame (15) direction down and be right against fire door bottom end face.
5. a kind of high efficiency and heat radiation built-in microwave oven according to claim 4, is characterized in that: described fire door (11) top end faces outer downward-sloping, and described fire door bottom end face is inclined upwardly outwardly.
6. according to a kind of high efficiency and heat radiation built-in microwave oven described in claim 1 or 4 or 5, it is characterized in that: described upper venthole (14) and lower production well (15) are all grid-like.
7. a kind of high efficiency and heat radiation built-in microwave oven according to claim 3, is characterized in that: the perforate (45) at described electric apparatus room (4) back side locates to be provided with screen pack.
8. a kind of high efficiency and heat radiation built-in microwave oven according to claim 3, it is characterized in that: the front end of described upper wind scooper (22) is flat narrow and dock described upper venthole (14) gradually, the front end of described lower wind scooper (24) is flat narrow and dock described lower production well (15) gradually.
9. a kind of high efficiency and heat radiation built-in microwave oven according to claim 1, is characterized in that: described cooling blower (46) is variable speed electric motors, particularly, in described upper wind scooper (22) and lower wind scooper (24), is equipped with the temp probe being electrically connected to control panel.
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| CN201310339366.7A CN104121610B (en) | 2013-08-06 | 2013-08-06 | A kind of high efficiency and heat radiation built-in microwave oven |
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| CN201310339366.7A CN104121610B (en) | 2013-08-06 | 2013-08-06 | A kind of high efficiency and heat radiation built-in microwave oven |
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| CN104121610A true CN104121610A (en) | 2014-10-29 |
| CN104121610B CN104121610B (en) | 2017-03-08 |
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