CN202709211U - Insectproof and moistureproof and heat-insulating novel electromagnetic oven - Google Patents

Insectproof and moistureproof and heat-insulating novel electromagnetic oven Download PDF

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Publication number
CN202709211U
CN202709211U CN 201220227946 CN201220227946U CN202709211U CN 202709211 U CN202709211 U CN 202709211U CN 201220227946 CN201220227946 CN 201220227946 CN 201220227946 U CN201220227946 U CN 201220227946U CN 202709211 U CN202709211 U CN 202709211U
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CN
China
Prior art keywords
plastic casing
circuit board
main circuit
heat
insect protected
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Expired - Fee Related
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CN 201220227946
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Chinese (zh)
Inventor
刘伟中
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刘伟中
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Priority to CN 201220227946 priority Critical patent/CN202709211U/en
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Publication of CN202709211U publication Critical patent/CN202709211U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses an insectproof and moistureproof and heat-insulating novel electromagnetic oven which comprises a plastic outer shell, a porcelain panel, a heating coil, a main circuit board, a control panel, a cooling fan and a radiating component, wherein a radiating air inlet hole and a radiating air outlet hole both of 5 mm to 12 mm are arranged in the periphery of the plastic outer shell. The main circuit board is sealed up totally through a first plastic box, a waterproof groove of 10 mm to 50 mm is arranged in the periphery of the main circuit board, an insulating plate is arranged between the heating coil and the main circuit board, and the radiating component is arranged outside the first plastic box. A control circuit of the control panel is covered by a second plastic box. The novel electromagnetic oven is based on an existing electromagnetic oven, an insectproof and moistureproof plastic box, an insulating plate and other protection measures are added, an electronic component can be protected, the high failure rate caused by a traditional structure is lowered, and the ordinary maintenance costs are reduced.

Description

Insect protected moisture-proof heat-insulation electromagnetic cooker
Technical field
The utility model relates to electromagnetic oven, especially a kind of insect protected moisture-proof heat-insulation electromagnetic cooker.
Background technology
Nowadays electromagnetic oven has been come into huge numbers of families, becomes one of requisite household electrical appliance.Electromagnetic oven mainly is comprised of plastic casing, ceramic face board, heater coil drum, main circuit board, control panel, radiator fan and radiating element.Electromagnetic oven utilizes electromagnetic induction principle, produce alternating magnetic field by alternating current by coil, the irony kitchen tools are placed on the ceramic face board, heater coil drum and irony kitchen tools will produce galvanomagnetic-effect, the inner eddy-current heating that forms of irony kitchen tools, reach whereby heat up water, the purpose of cooking.Although electromagnetic oven has energy-saving and environmental protection, safety, convenience etc. a bit,, still there are problems in existing electromagnetic oven:
1〉heat insulation and dissipation is not good, the easy fault of main circuit board.Because the main circuit board of heater coil drum and below suffers very closely, when using electromagnetic oven to reach 30 minutes, the radiating element of magnetron, rectifier bridge has 60 degree, heater coil drum 70 degree, the bottom of a pan lower panel 75 degree, therefore, such as long-time use, the temperature of ceramic face board, heater coil drum and radiating element thereof will be very high, and the element of below main circuit board is influenced overheated and cause fault.
2〉the radiator fan pore is excessive, and insect has entered causes fault.Main circuit board and control panel are without any safeguard procedures, when insect enter in the circuit board or element surface and bipod between will directly cause fault, as occur in magnetron, the magnetron of high electric current high voltage operation can damage because electric current is excessive, burn simultaneously 10~15A protective tube and damage, sometimes also involve rectifier bridge etc.; The excreta that stays when insect is long and other band moisture secretion etc. can cause circuit electric leakage and circuit oxidation, short circuit, gently then can't work and circuit protection, and be heavy then burn out the vitals such as magnetron, rectifier bridge, integrated circuit, IC or CPU.During normal the use, also there are a lot of steam and greasy dirt, oil smoke to bring into together in the electromagnetic oven by the air-flow of radiator fan, in the course of time form clc layer at circuit board more obvious with too much steam, particularly wet weather, be easy to cause the faults such as electric leakage or short circuit.It is time-consuming hard again that in maintenance or when cleaning, think thoroughly to remove greasy dirt and the insect secretion of circuit board.
3〉capillary groove of electromagnetic oven inside perimeter is excessively low, has because of carelessness water or wet goods to overflow in the use to cross capillary groove to enter in the circuit, will cause serious short circuit.
4〉control panel button or ceramic face board surface fracture and ceramic face board periphery glue wears out when becoming flexible, and the foreign matters such as water all can enter circuit from breakage and cause fault.
5〉clean the electromagnetic oven surface, all around or during the greasy dirt of radiator fan pore, have unavoidably a small amount of water to enter in the circuit, also can cause electric leakage or short circuit.
In a word, existing electromagnetic oven insect protected, protection against the tide, effect of heat insulation are not ideal.
The utility model content
The technical problems to be solved in the utility model provides a kind of insect protected moisture-proof heat-insulation electromagnetic cooker reasonable in design, simple in structure, to reduce the electromagnetic oven fault that causes because of insect, water dirt, high temperature.
Adopt following technical scheme for solving the problems of the technologies described above the utility model: insect protected moisture-proof heat-insulation electromagnetic cooker, mainly be comprised of plastic casing, ceramic face board, heater coil drum, main circuit board, control panel, radiator fan and radiating element, the periphery of plastic casing has heat radiation air admission hole and the heat radiation venthole of 5~12mm; Main circuit board is totally-enclosed by the first plastic casing, and the main circuit board periphery is provided with the capillary groove of 10~50mm, and thermal insulation board is between heater coil drum and main circuit board, and radiating element is located at outside the first plastic casing; The control circuit of control panel is coated by the second plastic casing.
This electromagnetic oven is square, high 75~120mm; Heat radiation air admission hole and heat radiation venthole are circle, square, triangle, hexagon or octagonal.
The first plastic casing has the air-vent of 2~12mm, the oriented limit, hole of protruding outward 1~2mm of air-vent periphery.
Main circuit board and heater coil drum spacing 20~60mm.
Thermal insulation board is located at the top 20~30mm apart from the first plastic casing, and this place is provided with the thermal insulation board wind gathering wall of high 35~60mm.
Radiator fan and horizontal direction are 45 degree, 60 degree, 75 degree or 90 degree installs, and makes wind direction towards radiating element; 10~15mm arranges a heat insulation above the radiating element.
Plastic casing, the first plastic casing, the second plastic casing and thermal insulation board wind gathering wall are formed in one.
High 30~the 60mm of the first plastic casing.
The problem that the utility model exists for existing electromagnetic oven; redesigned its internal structure; the safeguard procedures such as plastic casing, thermal insulation board, heat insulation have been increased; heat radiation pore, capillary groove etc. have been improved; insect protected, protection against the tide and effect of heat insulation have been realized; can also protect electronic devices and components, reduce the high fault rate of the electromagnetic oven that brings because of traditional structure, reduce day-to-day maintenance.
Description of drawings
Fig. 1 is the understructure schematic diagram of the utility model insect protected moisture-proof heat-insulation electromagnetic cooker the first embodiment.
Among the figure: 1. heat radiation venthole, 2. osculum, 3. capillary groove, 4. the first plastic casing, 5. osculum, 6. heat radiation air admission hole, 7. heat radiation air admission hole, 8. radiator fan, 9. radiating element, 10. plastic casing, 11. wind gathering walls.
Fig. 2 is the understructure schematic diagram of the utility model insect protected moisture-proof heat-insulation electromagnetic cooker the second embodiment.
Among the figure: 1. heat radiation venthole, 2. osculum, 3. plastic casing, 4. capillary groove, 5. osculum, 6. the first plastic casing, 7. heat radiation air admission hole, 8. heat radiation air admission hole, 9. radiator fan, 10. wind gathering wall, 11. radiating elements.
Fig. 3 is the utility model insect protected moisture-proof heat-insulation electromagnetic cooker.
Among the figure: 1 Full-closed plastic magazine, 2 induction cooker face covers, 3 ceramic face boards.
The specific embodiment
As shown in Figure 3, the basic structure of the utility model insect protected moisture-proof heat-insulation electromagnetic cooker comprises Full-closed plastic magazine 1, induction cooker face cover 2 and ceramic face board 3.
As shown in Figure 1, the first embodiment of the present utility model mainly is comprised of plastic casing 10, ceramic face board, heater coil drum, main circuit board, control panel, radiator fan 8 and radiating element 9, and electromagnetic oven is square, high 75~120mm; The periphery of plastic casing has the circle heat radiation air admission hole 6,7 and heat radiation venthole 1 of 5~12mm; Main circuit board is totally-enclosed by the first plastic casing 4, the main circuit board periphery is provided with the capillary groove 3 of 10~50mm, the capillary groove periphery has the osculum 2,5 less than 12mm, thermal insulation board between heater coil drum and main circuit board (spacing 20~60mm), (high 30~60mm) the box face 20~30mm of place is provided with the thermal insulation board wind gathering wall 11 of high 35~60mm apart from the first plastic casing; Radiating element is located at outside the first plastic casing, and radiator fan and horizontal direction are 45 degree, 60 degree, 75 degree or 90 degree installs, and makes wind direction towards radiating element; 10~15mm arranges a heat insulation above the radiating element; The control circuit of control panel is coated by the second plastic casing; Plastic casing, the first plastic casing, the second plastic casing and thermal insulation board wind gathering wall are formed in one.
The second embodiment and the first of Fig. 2 are basic identical, also comprise heat radiation venthole 1, osculum 2, plastic casing 3, capillary groove 4, osculum 5, the first plastic casing 6, heat radiation air admission hole 7, heat radiation air admission hole 8, radiator fan 9, wind gathering wall 10, radiating element 11 basic element of character such as grade and structures, difference are that air-vent that its first plastic casing has 2~12mm is beneficial to heat radiation and gives vent to anger, the limit, hole that air-vent periphery is oriented to protrude 1~2mm outward enters the main circuit board the inside when reducing that greasy dirt and steam are too much in the future.
Design feature of the present utility model and effect:
1, the serve as theme control circuit of road plate and control panel installs respectively plastic casing additional, and the internal circuit sealing is fixed up, and the wiring aperture that the plastic casing periphery is reserved or skewer line mouth use insulative water-proof glue snearing to make its complete closed, and insect and water dirt can not enter.Simultaneously, the magnetron of former main circuit board and the radiating element of rectifier bridge are established outside the plastic casing.Because main circuit board is closed, for improving wherein easily heater element such as the heat radiations such as power supply pipe, power supply IC and voltage stabilizing adjustment pipe, can suitably increases the heater element heat sink or strengthen the heat sink area.
2, increase again 20-60 millimeter above (design for aesthetic and decide) between the main circuit board of electromagnetic oven and the heater coil drum, just had than large space between main circuit board element and panel, the heater coil drum like this, and under the heater coil drum, there be again insect protected, the plastic moistureproof box of main circuit board heat insulation and be designed with plastic septum and heat-barrier material from insect protected, protection against the tide, high 20-30 millimeters places of waterproof plastic box.So just can reduce widely or solve problems of excessive heat occurs between them.
3, the heat radiation aperture of the air admission hole of radiator fan, air outlet hole mouth and periphery all is designed to diameter less than 12 millimeters circle, pros, triangle, hexagonal, anise, rectangle aperture etc. (attractive in appearance, insect protected design and decide).Particularly to the small insect of cockroach and gecko etc. and so on, so just can prevent that less insect from entering into the circuit the inside, causes electric leakage or short-circuit conditions and phenomenon.
4, the high 10-50 millimeter of design on the capillary groove of electromagnetic oven inside perimeter, so just can effectively prevent defervescence out water and enter into the wiring board circuit with other foreign material of moisture content inside cause fault.Do several microstomes less than 12 millimeters at the capillary groove periphery again and do osculum.Exactly the water that enters into the inside is discharged from aperture.Protect well the circuit of the inside.
5, radiator fan changes the upwards heat sink device of 45 °, 60 °, 75 ° or 90 ° vertical type installations straight dry aligned magnetic keyholed back plate and rectifier bridges into by original horizontal installation.On heat sink, design a plastic heat shield every 10-15 millimeter place again, reduce the heat of heater coil drum and panel generation to the impact of radiating element.Radiating effect through heat sink after the technological transformation improves greatly, thereby eliminates too high this hidden danger of heat sink device temperature, protects well the elements such as magnetron and rectifier bridge.Because the wind of radiator fan originally be enter from below after-blow return under the panel again to around leave or the part wind arranged to heat sink, radiating effect is not ideal enough.And continuous longly will cause that magnetron or rectifier bridge temperature overheating cause that circuit protection quits work or burns out the elements such as magnetron and rectifier bridge and cause fault with the time.
6, the main circuit board of electromagnetic oven separates with its heat sink device, is exactly the heat sink device of magnetron and rectifier bridge, and design is in insect protected, protection against the tide, waterproof the first plastic casing outside, and the electronic component of its original periphery is just protected like this.
7, electromagnetic cooker exterior design squarely, high 75-120 millimeter.Heat radiation orifice diameter on every side is 5-12 millimeter circular orifice (design for aesthetic is decided).And insect protected, plastic moistureproof box and plastic septum wind gathering wall again can and electromagnetic stove outer housing be designed to one, once become mould or shaped article.Inside is designed to radiator fan, magnetron, rectifier bridge heat sink device and main circuit board by plastic septum (being called for short the wind gathering wall), separate with insect protected, plastic moistureproof box, leave corresponding magnetron at the dividing plate place and the rectifying bridge pin aperture is led on the main circuit board circuit.Plastic septum wind gathering wall be exactly more fan blow out air-flow put together and blow on the heat sink device.Because be the high thermal insulation board wind gathering wall of 35-60 millimeter, so there is the part wind on heater coil drum and top panel, to make heat transmission.A plastic heat shield is done at 20-40 millimeter place again between magnetron and rectifier bridge heat sink device and heater coil drum again, reduces directly to be heated between them, plays the effect of thermal insulation protection.Again in insect protected, 5-15 millimeter place designs again above the plastic moistureproof lid increases one deck plastic heat shield, is used for reducing the heater coil drum and directly the main circuit board element is heated, and well protects the element of main circuit board the inside.
The insect protected of panel control circuit board, plastic moistureproof box and panel cover are designed to one.Insect protected, plastic moistureproof lid is made their profile, size, prolongs on the limit of lid and does 10 millimeters grooves, makes it cover more sealing behind the snearing glue.Perhaps after they cover, sticking put down, cling and make its connecting line that seals between control panel and main circuit board, radiator fan, power line and the heater coil put again soft waterproof plastic pipe with easy waterproof plastic adhesive plaster around prolonging on their limit, through to the inside of the circuit between them, with their place, connection aperture of waterproof glue snearing, make its sealing again.
Main circuit board uses existing newfangled monolithic movement IC to be controlled to be the wiring board of one.So can be closed main circuit board with insect protected, plastic moistureproof box fully.

Claims (8)

1. insect protected moisture-proof heat-insulation electromagnetic cooker, mainly be comprised of plastic casing, ceramic face board, heater coil drum, main circuit board, control panel, radiator fan and radiating element, it is characterized in that: the periphery of described plastic casing has heat radiation air admission hole and the heat radiation venthole of 5~12mm; Described main circuit board is totally-enclosed by the first plastic casing, and the main circuit board periphery is provided with the capillary groove of 10~50mm, and thermal insulation board is between described heater coil drum and main circuit board, and described radiating element is located at outside the first plastic casing; The control circuit of described control panel is coated by the second plastic casing.
2. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 1 is characterized in that this electromagnetic oven is square, high 75~120mm; Described heat radiation air admission hole and heat radiation venthole are circle, square, triangle, hexagon or octagonal.
3. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 2, it is characterized in that: described the first plastic casing has the air-vent of 2~12mm, the oriented limit, hole of protruding outward 1~2mm of air-vent periphery.
4. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 3 is characterized in that: described main circuit board and heater coil drum spacing 20~60mm.
5. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 4 is characterized in that: described thermal insulation board is located at the top 20~30mm apart from the first plastic casing, and this place is provided with the thermal insulation board wind gathering wall of high 35~60mm.
6. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 5 is characterized in that: described radiator fan and horizontal direction are 45 degree, 60 degree, 75 degree or 90 degree installs, and makes wind direction towards described radiating element; 10~15mm arranges a heat insulation above the described radiating element.
7. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 6, it is characterized in that: described plastic casing, the first plastic casing, the second plastic casing and thermal insulation board wind gathering wall are formed in one.
8. insect protected moisture-proof heat-insulation electromagnetic cooker according to claim 7 is characterized in that: the high 30~60mm of described the first plastic casing.
CN 201220227946 2012-05-21 2012-05-21 Insectproof and moistureproof and heat-insulating novel electromagnetic oven Expired - Fee Related CN202709211U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220227946 CN202709211U (en) 2012-05-21 2012-05-21 Insectproof and moistureproof and heat-insulating novel electromagnetic oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220227946 CN202709211U (en) 2012-05-21 2012-05-21 Insectproof and moistureproof and heat-insulating novel electromagnetic oven

Publications (1)

Publication Number Publication Date
CN202709211U true CN202709211U (en) 2013-01-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220227946 Expired - Fee Related CN202709211U (en) 2012-05-21 2012-05-21 Insectproof and moistureproof and heat-insulating novel electromagnetic oven

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105091047A (en) * 2014-05-13 2015-11-25 名硕电脑(苏州)有限公司 Induction cooker
CN106508883A (en) * 2016-11-04 2017-03-22 成都银顶科技有限公司 Cockroach, radiation and scale preventing technology for induction cooker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105091047A (en) * 2014-05-13 2015-11-25 名硕电脑(苏州)有限公司 Induction cooker
CN106508883A (en) * 2016-11-04 2017-03-22 成都银顶科技有限公司 Cockroach, radiation and scale preventing technology for induction cooker

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130130

Termination date: 20150521

EXPY Termination of patent right or utility model