CN106642237B - A kind of electromagnetic stove - Google Patents
A kind of electromagnetic stove Download PDFInfo
- Publication number
- CN106642237B CN106642237B CN201611242007.XA CN201611242007A CN106642237B CN 106642237 B CN106642237 B CN 106642237B CN 201611242007 A CN201611242007 A CN 201611242007A CN 106642237 B CN106642237 B CN 106642237B
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- Prior art keywords
- circuit board
- wind
- radiator
- blower
- convex ribs
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to a kind of electromagnetic stoves, circuit board including casing and in casing, mounting disc, blower and radiator, wherein circuit board is mounted in mounting disc, the radiator is located above foregoing circuit plate, the upper surface of the mounting disc is convexly equipped with wind-guiding convex ribs, need the position of heat dissipation corresponding in the wind-guiding convex ribs area encompassed and circuit board, the bottom surface of the circuit board and the apical margin of wind-guiding convex ribs offset, to make the bottom surface of circuit board, heat-dissipating space is formed between the upper surface and wind-guiding convex ribs of mounting disc, and, the track that extends of the wind-guiding convex ribs has notch in the position of mounting disc side, the neighbouring indentation, there is provided with above-mentioned blower, and notch described in the air outlet of blower at least local alignment.Compared with prior art, the present invention, which substantially improves, need to radiate the heat dissipation effect at position to circuit board, to improve the heat dissipation effect of electromagnetic stove entirety.
Description
Technical field
The present invention relates to field of kitchen electric appliance more particularly to a kind of electromagnetic stoves.
Background technique
Electromagnetic stove mainly includes shell and the machine core for being built in shell, and the panel being connected on machine core exposes to shell,
Wherein the machine core of electromagnetic stove mainly includes electromagnetic wire coil and the wire coil bracket for accommodating the electromagnetic wire coil, and control electromagnetic wire coil work
The circuit board of work.There are many electronic components for setting on circuit board, and wherein IGBT element is one of core electron original part, passes through IGBT
Element HF switch generates alternating current, to generate alternating magnetic field, electromagnetic stove is heated to load.IGBT element is certainly
High pressure, high speed, high frequency, large capacity, miniaturization, the integrated characteristic of body so that the calorific value of IGBT element unit volume compared with
Greatly, if the temperature of IGBT element is more than Tjmax(junction temperature), then the performance of IGBT element will decline to a great extent, and influence its operation is stable
Property, to influence the work of electromagnetic stove.
Electromagnetic stove can generate amount of heat in use, traditional radiating mode mainly use direct current brush blower or
Centrifugal blower is entered the wind from electromagnetic stove chassis, is then radiated from the side outlet air of electromagnetic stove.Such as: Patent No.
A kind of embedded electromagnetic stove of the Chinese utility model patent of ZL200820200151.1 (Authorization Notice No. CN201293372Y)
The radiator structure of tool comprising heat dissipation wind channel is equipped between stove panel, bottom case, stove panel and bottom case, heat dissipation wind channel is by stove
Have panel, bottom case and air duct bracket assembled, air duct support ring is arranged around stove panel, and air duct bracket is inner cavity body, interior edge
Sinking step equipped with support stove panel, stove panel are located on sinking step, the inside of sinking step be equipped with in bottom case
The lower part of the opening communicated, air duct bracket is connect with bottom case, and exhaust vent is distributed in the outer rim of air duct bracket.In the patent, electricity
The hot-air that magnetic stove generates can be arranged from the exhaust vent on the bracket outer rim side of air duct outwardly, although electromagnetic stove can preferably be dispersed
Internal hot-air, but hot-air fasten the heat dissipation wind channel after be blown at the table top of kitchen range, and the table top side of kitchen range is generally
The support construction of cabinet to influence the circulation of heat dissipation wind channel exit hot-air, and then influences air-out effect.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of electromagnetic stove of good heat dissipation effect for the prior art.
The technical scheme of the invention to solve the technical problem is: a kind of electromagnetic stove, including casing and it is located at machine
Circuit board, mounting disc, blower and radiator in shell, wherein circuit board is mounted in mounting disc, which is characterized in that described to dissipate
Hot device is located above foregoing circuit plate, and the upper surface of the mounting disc is convexly equipped with wind-guiding convex ribs, the area which is surrounded
Need the position of heat dissipation corresponding on domain and circuit board, the bottom surface of the circuit board and the apical margin of wind-guiding convex ribs offset, to make electricity
Heat-dissipating space, also, the extension of the wind-guiding convex ribs are formed between the bottom surface of road plate, the upper surface of mounting disc and wind-guiding convex ribs
Track has notch in the position of mounting disc side, and the neighbouring indentation, there is provided with above-mentioned blower, and the air outlet of blower
At least notch described in local alignment.
Preferably, offering air-guiding hole with above-mentioned heat-dissipating space corresponding position on the bottom surface of the circuit board.Such blower
The wind of blowout can radiate to the electric elements around air-guiding hole by air-guiding hole.
Preferably, the electronic component that can be generated heat when being provided at least two work on the circuit board, the electronic component
It is shifted to install along circuit board length or width direction, the radiator is located above foregoing circuit plate and the radiator
Bottom is in contact with above-mentioned electronic component.The accumulation of the heat between each electronic component can be effectively avoided to be superimposed in this way, to have
Effect improves heat dissipation effect, while transferring heat to radiator with directly contacting for radiator by electronic component, increases and dissipates
Heat area improves radiating efficiency.
Preferably, the radiator is gilled radiator, top surface, which is formed with, moves towards one with the outlet air of the blower
The heat dissipation through slot of cause, and the top half of the air outlet of blower is directed at that the heat dissipation through slot, that lower half portion is directed at the wind-guiding is convex
Notch on muscle.Be conducive to the outlet air of blower with the heat generated on radiator.
Preferably, being additionally provided with wind scooper in the casing, which has air inlet and air outlet, the blower
Air outlet, the air inlet of radiator and wind scooper it is successively opposite, offer heat release hole on the bottom of the bottom case or side wall,
The air outlet of above-mentioned wind scooper leads to the heat release hole.It is directly guided and is discharged by wind scooper by the heat that radiator generates in this way, it can
Influence of the heat to other components of electromagnetic stove inside is avoided, while shortening the wind by fan outlet blowout in electromagnetic stove
Path, to reduce to the resistance of wind, so that heat dissipation effect is more preferable, radiating efficiency is higher.
Preferably, guide surface and guiding are sequentially formed on the roof of the wind scooper between air inlet and air outlet
Face, wherein guide surface is flushed with the top surface of radiator, and the guide surface is arc convex and tangent with guide surface, so as to more preferable
Ground is exported the heat that radiator generates by wind scooper by heat release hole.
Further, it is formed between the guide surface and guide surface and connects smooth transition, and the radius of curvature of the guide surface
For 90~120mm.
Compared with the prior art, the advantages of the present invention are as follows: circuit board is mounted in mounting disc in the present invention, radiator position
In circuit board, the upper surface of mounting disc is convexly equipped with wind-guiding convex ribs, needs on the wind-guiding convex ribs area encompassed and circuit board
The position of heat dissipation is corresponding, forms heat-dissipating space between the bottom surface of such circuit board, the upper surface of mounting disc and wind-guiding convex ribs,
The wind of blower blowout in this way can not only blow to radiator, thus by the radiator from the top of circuit board to the member on circuit board
Device radiates, and can enter above-mentioned heat-dissipating space by notch, carries out from the bottom of circuit board to the position that need to be radiated
Heat dissipation, compared with traditional radiating mode, substantially improving need to radiate the heat dissipation effect at position to circuit board, to improve electricity
The heat dissipation effect of magnetic stove entirety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electromagnetic stove in the embodiment of the present invention；
Fig. 2 is the other direction structural schematic diagram of Fig. 1；
Fig. 3 is cross-sectional view of the Fig. 1 along the direction A-A；
Fig. 4 is the partial structurtes exploded view of electromagnetic stove in the embodiment of the present invention；
Fig. 5 is the partial structurtes exploded view of I part in Fig. 4；
Fig. 6 is the structural schematic diagram of II part in Fig. 5；
Fig. 7 is the partial structurtes exploded view of Fig. 6；
Fig. 8 is the structural schematic diagram of III part in Fig. 7；
Fig. 9 is the other direction structural schematic diagram of Fig. 8；
Figure 10 is the structural exploded view of III part in 7；
Figure 11 is the partial structurtes exploded view of wire coil component in the embodiment of the present invention；
Figure 12 is the other direction structural schematic diagram of Figure 11.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Fig. 1~12, a kind of electromagnetic stove, including casing 1 is provided with heat dissipation wind channel 2, wire coil component 3 in the casing 1
And mounting disc 24, the casing 1 include panel 11 and bottom case 12, and the circuit for controlling the work of drum 30 is provided on bottom case 12
Plate 23, circuit board 23 are mounted in mounting disc 24, and radiator 21 is located at 23 top of foregoing circuit plate.Above-mentioned heat dissipation wind channel 2 includes
The bottom surface of bottom case 12 is arranged in blower 20, radiator 21 and wind scooper 22, the air inlet hole 121 of the blower 20.
The upper surface of above-mentioned mounting disc 24 is convexly equipped with wind-guiding convex ribs 25,25 area encompassed of wind-guiding convex ribs and circuit board
Need the position of heat dissipation corresponding on 23, the bottom surface of the circuit board 23 and the apical margin of wind-guiding convex ribs 25 offset, to make circuit board
Heat-dissipating space is formed between 23 bottom surface, the upper surface of mounting disc 24 and wind-guiding convex ribs 25.Also, the wind-guiding convex ribs 25
Extending track has notch 250 in the position of mounting disc side, is provided with above-mentioned blower 20 at the neighbouring notch 250) and
Notch 250 described in at least local alignment of air outlet 201 of blower 20.In addition, on the bottom surface of circuit board 23 with above-mentioned heat dissipation
Space corresponding position offers air-guiding hole 231, the wind that such blower 20 is blown out by air-guiding hole 231 can be to air-guiding hole 231 around
Electric elements radiate.
The electronic component 13 that can be generated heat when being provided at least two work on foregoing circuit plate 23, the electronic component 13 is on edge
It is shifted to install in 23 width direction of circuit board, above-mentioned radiator 21 is located at the bottom of 23 top of foregoing circuit plate and radiator 21
It is in contact with above-mentioned electronic component 13.The heat that electronic component generates 13 in this way can be directly passed to radiator 21, increase heat dissipation
Area improves radiating efficiency.
IGBT element is one of core electron original part, alternating current is generated by IGBT element HF switch, to generate
Alternating magnetic field enables electromagnetic stove to heat load.The high pressure of IGBT element itself, high speed, high frequency, large capacity, miniaturization,
Integrated characteristic, so that the calorific value of IGBT element unit volume is larger, if the temperature of IGBT element is more than Tjmax(junction temperature),
Then the performance of IGBT element will decline to a great extent, and influence its job stability, to influence the work of electromagnetic stove.Therefore, above-mentioned electricity
Subcomponent 13 is preferably IGBT element, and the IGBT element is arranged in the central location of circuit board 23, and on circuit board 23
Remaining electronic component is then arranged in the two sides of circuit board 23.
Further, the electromagnetic stove in the present embodiment is eyes electromagnetic stove, therefore electromagnetic stove is internally provided with four IGBT members
Part, this four IGBT elements are respectively the first IGBT element 131, the 2nd IGBT element 132, the 3rd IGBT element 133 and the 4th
IGBT element 134.To avoid heat diffusion between each IGBT element, accumulation superposition, so that heat dissipation effect is influenced, the present embodiment
In, the first IGBT element 131 close to radiator 21 air intake 210 and be greater than 20mm with the distance between the air intake 210,
Spacing between first IGBT element 131 and the 2nd IGBT element 132 is 20~30mm.3rd IGBT element 133 with it is above-mentioned
2nd IGBT element, 132 neighbour sets and the spacing of the two is greater than 100mm, the 3rd IGBT element 133 and the 4th IGBT element 134
Between spacing be 20~30mm.In addition, being additionally provided with bridge heap 14 on circuit board 23, which is located at above-mentioned 2nd IGBT member
Between part 132 and the 4th IGBT element 132, and between the bridge heap 14 and the 2nd IGBT element 132 and the 3rd IGBT element 133
Spacing be all larger than 30mm.
In addition, radiator 21 in the present embodiment is gilled radiator, top surface be formed with with the heat dissipation wind channel 2
Move towards consistent heat dissipation through slot 211, and the top half of the air outlet 201 of blower 20 is directed at the heat dissipation through slot 211, lower half
Part is directed at the notch 250 on the wind-guiding convex ribs 25.
Above-mentioned wind scooper 22 includes the side wall of roof and two sides, which is integrated, including guide surface 221 and guide surface
222, wherein guide surface 221 is flushed with the top surface of above-mentioned radiator 21, and the free end of the guide surface 221 externally protrudes out in wind scooper
22 and it is connected with 21 top surface of radiator.It is formed between guide surface 221 and guide surface 22 and connects smooth transition, and the guide surface
222 radius of curvature is 90~120mm.
Above-mentioned two sides side wall is disposed around the front and rear sides of roof, and two sidewalls and one end of roof enclose and set to form wind scooper 22
Air inlet 223, and keep the air inlet 223 of the air outlet of above-mentioned blower 20, radiator 21 and wind scooper 22 successively opposite, and
The other end of two sidewalls and roof, which encloses, sets the air outlet 224 to form wind scooper 22, and the air outlet 22 and setting are in 12 bottom surface of bottom case
On 122 face of heat release hole, so as to preferably by heat pass through heat release hole 122 row of the above-mentioned heat dissipation wind channel 2 from 1 bottom of casing
Out.Further, the air inlet hole 121 of above-mentioned blower 20 is 275~300mm at a distance from heat release hole 122, is avoided by heat release hole 122
The hot wind of discharge enters heat dissipation wind channel 3 by air inlet hole 121.Compared with the radiator structure of existing electromagnetic stove, dissipating in the present invention
The hot gas that electromagnetic stove generates directly is passed through electromagnetic stove bottom and is discharged by hot-flow flue 2, effectively avoids side heat extraction pair in the prior art
The influence of cabinet, while wind is directly discharged by electromagnetic stove bottom wind scooper 22, shortens the length in entire air duct, to reduce
Resistance of the air duct to wind, improves heat dissipation effect, in addition, wind is directly discharged by bottom wind scooper 22, can effectively avoid heat
Measure the influence to other components of electromagnetic stove inside.
Above-mentioned wire coil component 3 includes drum 30 and the mounting bracket 31 for installing the drum 30, the mounting bracket 31 packet
It includes the fixed plate 311 for fixing drum 30 and is used to support the elastic supporting member for supporting optical member 312 of the fixed plate 311, the elastic supporting member for supporting optical member
312 are arranged between fixed plate 311 and bottom case 12, and so that drum 30 is kept the trend to offset with panel 11, while making fixed plate
311 are close to the top surface of radiator 21.In this way can not only by drum 30 and panel 11 sufficiently close to promote electromagnetic stove
Performance, and panel 11 pushes wire coil component 3 and is close to fixed plate 311 and the top surface of radiator 21, to be formed relatively close
The heat dissipation wind channel 2 of envelope, in addition to carrying out concentrating heat dissipation to IGBT element, moreover it is possible to it is radiated by fixed plate 311 to drum 30, from
And promote the integral heat sink effect of electromagnetic stove.
Above-mentioned drum 30 is located in fixed plate 311 by connection component, which includes being arranged in fixed plate 311
Slotting connection structure between 30 bottom of drum and be arranged in drum 30 weeks along and the buckle structure between fixed plate 311.The company of inserting
Structure include be arranged in the inserting column 301 and setting of 30 bottom of drum and 311 junction of fixed plate wherein at one at another place, for this
The jack 313 that inserting column 301 is inserted into.In the present embodiment, the bottom of drum 30 is evenly equipped with three root cutting columns 301, and pair of fixed plate 311
Should place be provided with for the inserting column 301 be inserted into jack 313, so that the limit is located in fixed plate 311.The buckle structure packet
Include be arranged in drum 30 weeks along at 311 junction of fixed plate wherein one buckle block 314 and setting at another place, for the buckle
The buckle slot 302 that block 314 is caught in, also, the buckle slot 302 is with buckle block 314 equal at least two and respectively along drum 30 weeks
To being all provided with.In the present embodiment, above-mentioned buckle block 314 is the convex block for being vertically provided at 311 top surface of fixed plate, and the convex block is four
And be all provided with around drum 30 is circumferential, accordingly, week of drum 30 is circumferentially all provided with that there are four horizontal convex block 303, each levels along upper
The notch being radially outward open is provided on convex block 303, each notch forms above-mentioned buckle slot 302.It is each when 30 bottom of drum
When inserting column 301 is inserted into corresponding jack 313, buckle block 314 is caught in immediately in corresponding buckle slot 302, so that drum 30 is steady
Admittedly be arranged in fixed plate 311.
Above-mentioned elastic supporting member for supporting optical member 312 is in the form of a column, and including vertically arranged support column 32 and is set on the support column 32
Compressed spring 33, the bore dia of the connecting hole 315 are greater than the width of limited cap 321, and the outer diameter of compressed spring 33 is greater than connecting hole
315 bore dia, the lower end of the support column 32 are fixed on bottom case 12, and upper end is threaded through in the connecting hole 315 of fixed plate 311,
And by the limit of the upper end of compressed spring 33 in the connecting hole 315.For compressed spring 33 is firmly placed in support column 32,
The upper end of the support column 32 peripherally and outwardly extends and forms limited cap 321, in addition, the two sides of the limited cap 321 are respectively arranged with
Anti- rotation recess 322.Meanwhile the lower end of support column 32 offers the mounting hole 323 extended along its short transverse, and pair of bottom case 12
Should place offer through-hole, a screw (not shown) sequentially passes through above-mentioned through-hole and mounting hole 323 and support column 32 is fixed on bottom
On shell 12.Support column 32 is fixed by screws on bottom case 12, and compressed spring 33 is set on support column 32.
When installation, fixed plate 311 is placed on elastic supporting member for supporting optical member 312, and connecting hole 315 is directed at elastic supporting member for supporting optical member
312 push, and compressed spring 33 is compressed and forces in fixed plate 311, and limited cap 321 passes through connecting hole 315, and fixed plate 311 limits
Between compressed spring 33 and limited cap 321, and under the action of elastic supporting member for supporting optical member 312, protect drum 30 and panel 11
Hold the state to offset.
Claims (8)
1. a kind of electromagnetic stove, including casing (1) and be located at the circuit board (23) of (1) in casing, mounting disc (24), blower (20) with
And radiator (21), wherein circuit board (23) is mounted on mounting disc (24), which is characterized in that the radiator (21) is located at upper
It states above circuit board (23),
The upper surface of the mounting disc (24) is convexly equipped with wind-guiding convex ribs (25), wind-guiding convex ribs (25) area encompassed and circuit
Need the position of heat dissipation corresponding on plate (23), the bottom surface of the circuit board (23) and the apical margin of wind-guiding convex ribs (25) offset, thus
Make to form heat-dissipating space between the bottom surface of circuit board (23), the upper surface of mounting disc (24) and wind-guiding convex ribs (25),
Also, the track that extends of the wind-guiding convex ribs (25) has notch (250) in the position of mounting disc side, lacks in neighbouring this
It is provided with above-mentioned blower (20) at mouth (250), and notch described in air outlet (201) at least local alignment of blower (20)
(250)。
2. electromagnetic stove as described in claim 1, which is characterized in that on the bottom surface of the circuit board (23) with above-mentioned heat-dissipating space
Corresponding position offers air-guiding hole (231).
3. electromagnetic stove as claimed in claim 1 or 2, which is characterized in that be provided at least two works on the circuit board (23)
The electronic component (13) that can be generated heat when making, the electronic component (13) are set misplacing along circuit board (23) length or width direction
It sets, the radiator (21) is located at foregoing circuit plate (23) top and bottom and the above-mentioned electronic component of the radiator (21)
(13) it is in contact.
4. electromagnetic stove as claimed in claim 3, which is characterized in that the electronic component (13) is IGBT element, and the IGBT
Element is arranged in the central location of circuit board (23), and remaining electronic component on circuit board (23) is then arranged in circuit board
(23) two sides.
5. electromagnetic stove as claimed in claim 1 or 2, which is characterized in that the radiator (21) is gilled radiator, top
Face, which is formed with, moves towards consistent heat dissipation through slot (211), the air outlet (201) of the blower (20) with the outlet air of the blower (20)
Top half be directed at the heat dissipation through slot (211), lower half portion is directed at notch (250) on the wind-guiding convex ribs (25).
6. electromagnetic stove as claimed in claim 1 or 2, which is characterized in that wind scooper (22) are additionally provided in the casing (1),
The wind scooper (22) has air inlet (223) and an air outlet (224), the air outlet of the blower (20), radiator (21) and
The air inlet (223) of wind scooper (22) is successively opposite, offers heat release hole (122) on the bottom of the casing (1) or side wall, on
The air outlet (224) for stating wind scooper (22) leads to the heat release hole (122).
7. electromagnetic stove as claimed in claim 6, which is characterized in that the roof of the wind scooper (22) in wind scooper (22) into
Guide surface (221) and guide surface (222) are sequentially formed between air port (223) and air outlet (224), wherein guide surface (221) with
The top surface of radiator (21) flushes, and guide surface (222) leads to heat release hole (122), and for arcwall face and with guide surface (221) phase
It cuts.
8. electromagnetic stove as claimed in claim 7, which is characterized in that formed between the guide surface (221) and guide surface (222)
Smooth transition is connected, and the radius of curvature of the guide surface (222) is 90~120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242007.XA CN106642237B (en) | 2016-12-29 | 2016-12-29 | A kind of electromagnetic stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242007.XA CN106642237B (en) | 2016-12-29 | 2016-12-29 | A kind of electromagnetic stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106642237A CN106642237A (en) | 2017-05-10 |
| CN106642237B true CN106642237B (en) | 2019-06-28 |
Family
ID=58836299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611242007.XA Active CN106642237B (en) | 2016-12-29 | 2016-12-29 | A kind of electromagnetic stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106642237B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267427B (en) * | 2018-03-12 | 2022-02-25 | 佛山市顺德区美的电热电器制造有限公司 | Power board assembly for cooking device and cooking device |
| CN110454825A (en) * | 2018-05-07 | 2019-11-15 | 青岛海尔智慧厨房电器有限公司 | A kind of electromagnetic stove radiator structure and electromagnetic stove |
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| CN2887002Y (en) * | 2006-02-22 | 2007-04-04 | 纽福克斯光电科技（上海）有限公司 | Thermal radiating duct for converter |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106642237A (en) | 2017-05-10 |
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