CN209545921U - A kind of electromagnetic heating product cooling system - Google Patents

Abstract

The utility model discloses a kind of cooling systems of electromagnetic heating product, it include: coil panel 1, coil brace 2, automatically controlled mainboard 4, blower 5 and air duct wall construction 19, the coil brace 2 is socketed on outside the coil panel 1, the blower 5 is set to the bottom part down of the coil panel 1, the radiator 42 is horizontally placed on the side of the blower 5, the circuit board 41 is set to 42 top of radiator, the air duct wall construction 19 is formed on bottom case 18, for guiding air-flow to the automatically controlled mainboard 4.The motor 5 is installed to the air duct wall construction 19 or the bottom case 18.The utility model installation is simple, generalization degree is high, overall cost is low, and the complete machine development cycle is obviously shortened, and can be applied to the electromagnetic heatings class product such as IH rice cooker, pressure cooker.

Description

A kind of electromagnetic heating product cooling system

Technical field

The utility model relates to electromagnetic heating field more particularly to a kind of compacts that can be realized inexpensive rapid cooling The cooling system of IH electromagnetic heating product.

Background technique

Electromagnetic induction heating electric appliance generally includes upper cover, and bottom case, coil panel and coil brace are (since coil brace is in complete machine In be set to coil panel side and lower part, can play the role of support coil panel (including coil), so part designer Referred to as coil brace, but due to also providing support and displacement structure for magnetic stripe, also A designer person is referred to as magnetic stripe bracket, this Only difference nominally, actual functional capability have no too big difference), automatically controlled mainboard (generally comprises radiator and circuit board and electricity Component on the plate of road, but also there is part designer to think that automatically controlled mainboard only refers to circuit board, radiator is only and on circuit board Power component fit, be not a part of circuit board, but this only difference nominally, two kinds of calls in actual use Have), several parts such as interior pot.

Wherein, the power device (such as IGBT) on automatically controlled mainboard (usually using PCB as form) at work, can generate a large amount of Heat.Other electronic components on mainboard can also generate certain heat.In addition, in the work of electromagnetic induction heating module, quilt The inductance coil disk of energization can also generate a large amount of heat.In the prior art, it will usually which fitting installation wind groove formula dissipates on IGBT Hot device, and an air-flow for radiating for it towards the blower of radiator, while being generated using blower is set, take away coil panel generation Heat.But usually all there is the problems such as heat dissipation effect is bad, and structural integrity is poor, and volume is bigger than normal in existing design.

For example a kind of electromagnetic heating electric rice cooker disclosed in CN104223930B, blower setting are utilized in coil disc side Wind path wall guides tangential gas flow to coil pan bottom, and axial flow is blowed to automatically controlled mainboard and radiator upwards.This cloth The shortcomings that setting is the air-flow for blowing over radiator, becomes the air-flow with big calorimetric, which inevitably blows over automatically controlled again The surface of mainboard affects the radiating efficiency of automatically controlled mainboard other parts, and the bottom due to the position of blower far from coil panel Portion, so the air-flow of side blowout is when reaching coil pan bottom, air quantity and wind pressure have deficiency, can not high efficiency and heat radiation.In addition, Although radiating subassembly is integrated with radiator, board design, it is still a kind of blower on the whole under, circuit board is upper Stacking layout, runner design do not take into account all heat generating components；Causing it simultaneously, size is larger in the vertical direction, and Since the position of blower is outer in coil panel projection, and the space of electric cooker bottom and side is not made full use of, caused entire The volume of radiating subassembly and automatically controlled mainboard is bigger than normal, and structure is not compact enough.

CN104042119B discloses a kind of IH rice cooker main control module and mainboard bracket, the gas that side outlet air notch 17 is blown out Stream avoids other yuan that the air-flow being heated blows to automatically controlled mainboard across radiator 21, and by the setting in air duct and baffle Part.But since its blower is still arranged in coil disc side and to shunt a part of air-flow from side notch 17, because This, side heat dissipation effect of the side airflow to coil panel far from blower of blowout is poor, and due to the setting of upper guard-plate, So that directly blowing to the other elements of automatically controlled mainboard without air-flow, cause these element radiatings still unsmooth.And it is internal due to The wind path wall to intersect vertically is excessive, and the air-flow of part axially upwards will could be blown out through multiple impacts, also results in the damage of wind pressure It loses, in actual design, it is likely that designer is forced to increase cost and noise using the blower of bigger specification.Although in addition, Radiating subassembly is integrated with radiator, board design, but is still a kind of blower on the whole under, and circuit board is in upper heap Laying up office, runner design do not take into account all heat generating components；Causing it simultaneously, size is larger in the vertical direction, and due to Motor position is partially outer, does not make full use of the space of electric cooker bottom and side, wastes a part of space, causes entire electric meal Cooker body product is bigger than normal, and structure is not compact enough.

CN107684342A discloses a kind of electric pressure cooking saucepan, although blower is mounted below coil panel, but due to it Air-flow axially upwards will also take into account the heat dissipation of automatically controlled mainboard, so, blower there is no close to coil pan bottom center and It is proximate to edge arrangement, half is located at below coil panel, and half is located at below automatically controlled mainboard.This actually still it is traditional up and down The top of blower is still arranged in stacked structure, radiator, shows no sign of using the idle space in pot；Meanwhile blower Tangential gas flow do not utilized well or the upward blowout of all one brains of air-flow, the air-flow for flowing through radiator exist Under the action of baffle 630, and the component on circuit board is blowed to, various air-flow weave ins are equivalent to secondary to component Heating, radiating efficiency are low；Further, since the electric pressure cooking saucepan uses electromagnetic heating chassis, chassis is laid in substantially below interior pot, nothing The interior pot side compared with distal side need to be directed flow into, therefore, the wind pressure and air quantity requirement to radiating airflow be not very high, so Shunting function is not just fully considered in design, and the control of air-flow is only realized using only simple baffle, essence is both not achieved Quasi- control, refraction will also result in air loss, and it is chaotic, discrete and interfere with each other to ultimately cause air-flow；Under this scheme, If cooling fin fever is acutely, temperature, wind pressure and the air quantity that refraction blows to the radiating airflow of circuit board can be insufficient, if answered In actual design for electromagnetic induction electric appliance, it is likely that designer is forced to cause volume to increase using the blower of bigger specification Greatly, noise rises, cost improves；In addition, its blower is arranged on bottom plate, power panel is arranged again in case inside, without shape The design integrally changed, causes loosely organized, has tied up the space of other structures, assembly, repair demolition have inconvenience.

CN207492536U discloses a kind of electric cooker, and blower is set to the lower section of coil panel and automatically controlled mainboard, and one Axial flow is divided to blow to coil panel, a part of air-flow blows to radiator, and it is still, unreasonable due to being laid out, cause volume bigger than normal, wind Machine apart from coil panel too far, it is also necessary to the olderly flowage that additional wind deflector is just able to achieve air-flow is set around coil panel.This Outside, Duct design is unreasonable, and the air-flow guidance for blowing to coil panel is inaccurate, necessarily causes the heat dissipation between various pieces uneven It is even；The other elements for not guiding the automatically controlled mainboard of air flow direction cause this some components can only natural heat dissipation；It is blown from radiator Hot wind out, is not expelled directly out outside shell, but also in shell body-internal-circulation, largely blow to other yuan of automatically controlled mainboard Part, causes secondary heated, results in the degradation of radiating efficiency.Although in addition, radiating subassembly and radiator, board design It is integrated, but is still a kind of blower on the whole under, circuit board is laid out in upper stacking, almost just not to air-flow progress Accurate guidance, runner design do not take into account all heat generating components；Causing it simultaneously, size is larger in the vertical direction, and Since the position of blower is most of outer in coil panel projection, and the space of electric cooker bottom and side is not made full use of, made Vertical height at entire radiating subassembly and automatically controlled mainboard is bigger than normal, and structure is not compact enough.

CN204617952U and CN207444813U discloses a kind of electric cooker, and structure is very similar, although Radiating subassembly is integrated with radiator, board design, but is still a kind of blower on the whole under, and circuit board is in upper heap Laying up office, and since the position of blower is most of outer in coil panel projection does not make full use of electric cooker bottom and side Space causes entire radiating subassembly and automatically controlled mainboard structure not compact enough.Although radiator is all disposed within blower side, Since its blower is still arranged in coil disc side and to shunt a part of air-flow from side notch, blowout Side heat dissipation effect of the side airflow to coil panel far from blower is poor, and since top baffle is whole by all axial flows It blocks, therefore blows to the air-flow on coil panel top almost without for the line of the electric cooker electric appliances side surface upper part of electromagnetic heating It is poor to enclose heat dissipation effect, while air-flow is not guided accurately, so that directly blowing to other yuan of automatically controlled mainboard without air-flow Part causes these element radiatings still unsmooth.

In addition, the components such as blower, fan fixing device, blower frame are usually incorporated into coil brace by existing cooling system On, cause coil brace complex-shaped, integrated molding is extremely difficult, meanwhile, in order to keep intensity that also have to increase coil branch The thickness of frame, overall cost rise obvious.

For example coil brace shown in attached drawing 1-2 and cooling system use coil branch derived from another two product of our company Frame 102 is used as main assembly parts, and coil brace integral coating is integrated with wind in the outside of coil panel 101 on coil brace Road encloses bone 106 or wind path wall 107 and 108, and blower 105 is mounted on coil brace 102 also by fan installing structure 113, The integral structure that circuit board 103 and radiator 104 form also is installed to coil brace 102.Firstly, the said goods are due to bracket shape Shape is complicated, and the manufacture requirement of mold is very high, and during integrated molding, technique requires also to correspondingly increase, and quality product rate obtains not To guarantee；Secondly as the component of installation to bracket is very more, cause the intensity requirement to bracket very high, bracket entirety Thickness is thicker, and the material of selection is also the bigger plastic resin material of hardness；Finally, cooling system on the whole can be by coil Bracket is installed on the bottom case of heating electrical appliance as connector, in the case where weight support frame and intensity can not be improved infinitely, Vibration caused by blower operates will cause the entire cooling system noise being attached thereto and vibration rises.Therefore, on the whole, though The heating of the right product and heat dissipation performance are first-class, and structural strength is first-class, and integrated degree is high, but manufacturing cost is higher, vibration It is slightly weak with noise control.

To sum up, it is badly in need of providing a kind of good heat dissipation effect in the market, builds heat dissipation at low cost, vibration and noise control is strengthened System.

Summary of the invention

The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of heat dissipation effect The cooling system of the high and low cost of rate.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of heat dissipation system of electromagnetic heating product System, comprising: coil panel 1, coil brace 2, automatically controlled mainboard 4, blower 5 and air duct wall construction 19, the coil brace 2 are socketed on institute It states outside coil panel 1, the blower 5 is set to the bottom part down of the coil panel 1, and the automatically controlled mainboard 4 includes circuit board 41 With radiator 42, the radiator 42 is horizontally placed on the side of the blower 5, and the circuit board 41 is set to the radiator 42 tops, the air duct wall construction 19 are formed on bottom case 18, for guiding air-flow to the automatically controlled mainboard 4.

Further, the motor 5 is installed to the air duct wall construction 19 or the bottom case 18.

Further, the bottom case 18 is provided with air outlet 14 on the air-out direction of the radiator 42.

Further, on the bottom case of 5 lower section of motor, it is provided with air inlet 17.

Further, the coil brace (2) coats the outside of the coil panel (1), and jagged (21) are arranged in bottom, The air-flow blown out at the top of the blower (5) enters the coil brace (2) and the coil panel (1) via the notch (21) Between heat dissipation channel and be expelled to outside cooling system.

Further, the air duct wall construction 19 includes the first wind path wall 7, is open towards the radiator 42, other portions Divide around the blower 5 close to the part at 1 center of coil panel, air-flow is guided from 5 side of blower to the electricity Control the direction of mainboard 4.

Further, the air duct wall construction 19 further includes the second wind path wall 8, and second wind path wall 8 is respectively arranged at The inside of first wind path wall, 7 two open ends, near the fan installing structure 13 to the direction of the radiator 42 Extend at an angle.

Further, first wind path wall 7 and the horizontal normal direction benchmark G at 5 center of blower are in 80-120 ° of angle, institute The second wind path wall 8 is stated with the horizontal normal direction benchmark G at 5 center of blower in 70-90 ° of angle, the height of second wind path wall 8 is small In or equal to first wind path wall 7 height.

Further, second wind path wall 8 is respectively arranged at the outside of 7 two open ends of the first wind path wall, institute The first wind path wall 7 is stated with the horizontal normal direction benchmark G at 5 center of blower in 70-90 ° of angle, second wind path wall 8 and the wind The horizontal normal direction benchmark G at 5 center of machine is in 80-120 ° of angle, and the height of second wind path wall 8 is greater than first wind The height of road wall 7.

Further, at least part of the radiator 42 is in the drop shadow spread of the coil panel 1.

Further, the circuit board 41 is set to the radiator 42 with the angle relative to vertical direction less than 30 ° Top, the radiator 42 are set to the side of the blower 5 with the angle relative to horizontal direction less than 30 °.

The cooling system for implementing the electromagnetic heating product of the utility model, has the advantages that (1) by wind path wall knot Structure is arranged on bottom case, can simplification coil brace greatly moulding process, and the work of wind path wall is integrally formed on bottom case Skill is very simple, and the increased costs of corresponding bottom case are unobvious, and the two superposition can save significant cost.(2) due to Bottom case material hardness is very high, and on bottom case, vibration and noise is available greatly to be inhibited assembling.(3) due to air duct Wall and blower do not reside on coil brace, and the requirement to support intensity and vibration damping accordingly reduces, and can accordingly save a part Cost.(4) blower is arranged below coil panel, lower space is utilized to the greatest extent, and provide utilization for other component The chance in side-lower space；Blower is close apart from coil panel, and top is substantially unobstructed, can be very good to entire coil panel into Row heat dissipation.(5) radiator is arranged in blower side, and the tangential gas flow and lateral space of blower is effectively utilized.(6) circuit board Be vertically arranged, make full use of space, at the same its most of element can be made far from the most strong bottom of coil panel electromagnetic interference and Bottom edge region is conducive to protect component.(7) a part of tangential gas flow blows to other portions of automatically controlled mainboard by gap Point, several air-flows are not interfere with each other, and improve radiating efficiency, are effectively utilized all air quantity, and form around automatically controlled mainboard Positive wind pressure avoids hot air reflux to the region.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer:

Fig. 1 is coil brace schematic perspective view in the prior art；

Fig. 2 is cooling system schematic perspective view in the prior art；

Fig. 3 is the utility model cooling system side sectional view and air duct schematic diagram；

Fig. 4 is the structural schematic diagram of the utility model bottom case.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The exemplary embodiments of the utility model are given in attached drawing.But the utility model can come in many different forms in fact It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model It is more thorough and comprehensive to open content.

Herein it is so-called project refer in the depth along coil panel 1, short transverse is projected in other words, namely flat The projection of row plane where coil pan bottom.

With reference to Fig. 3-4, the technical solution of the utility model is a kind of electromagnetic heating product cooling system, comprising: coil panel 1, coil brace 2, automatically controlled mainboard 4, blower 5 and air duct wall construction 19, the coil brace 2 are socketed on outside the coil panel 1, The blower 5 is set to the bottom part down of the coil panel 1, and the automatically controlled mainboard 4 includes circuit board 41 and radiator 42, described Radiator 42 is horizontally placed on the side of the blower 5, and the circuit board 41 is set to 42 top of radiator, the air duct Wall construction 19 is formed on bottom case 18, for guiding air-flow to the automatically controlled mainboard 4.The motor 5 is installed to the air duct Wall construction 19 or the bottom case 18.

Most important improvement of the utility model to the prior art, changes to blower and air duct wall construction installation site Become.In the prior art, main assembly parts usually assume responsibility for the fixation and installation of module or cooling system major part component, mostly Even whole components are all mounted thereon in number situation, it certainly will be required to have sizable structural strength；Meanwhile in order to All components are enough installed, expanded area is usually bigger, and otherwise other component is difficult to find suitable installation site.Exactly Due to this two o'clock, when using coil brace as main assembly parts, coil brace can be very big very thick, causes cost increase. If the means for increasing wall thickness or area is not used to improve structural strength, being bound to will be using the higher material of hardness, equally It will cause the rapid increase of manufacturing cost.When using coil panel as main assembly parts, since coil brace usually will also undertake Support blower and wind path wall function, so its intensity and thickness can not be reduced to it is minimum.For production firm, at certain On a kind of other product, such as electric cooker, will not there was only several models certainly, but tens kinds of different models, price are also inevitable It is to have layout from low to high, in some models, such as the lower product of heating power, the production towards certain specific merchants Product, cost control are necessarily placed on very important position, the reduction of assembly volume, the reduction of intensity requirement, the drop of manufacture difficulty It is low, the saving in cost will necessarily be brought, the utility model is exactly to generate under this demand.

The utility model core is that the intensity of bottom case 18 itself is utilized, and reduces the manufacture difficulty and body of coil brace 2 Product, reduces the requirement to the strength of materials.Since coil brace 2 is not necessarily to undertake the weight of support line motor 5 and air duct wall construction 19 Amount, therefore its intensity (material that influence factor includes materials volume and selection) can minimize, it is only necessary to meet bearing magnetic stripe And temperature requirement.In addition, using bottom case 18 structural strength itself, big, stability is eased up the outstanding feature of pinking, is not necessarily to Increase the structural strength of bottom case 18, air duct wall construction 19 need to be only integrally formed on bottom case 18 (mainly bottom), setting corresponds to Connection structure (such as spliced eye, connecting column, fastener, flange connector), so that it may by the installation of blower 5 to bottom case or air duct On wall construction.In actually manufacture, bottom case 18 is equally using such as the methods of injection molding production, therefore in manufacturing process Substantially without adjustment, almost without increase on material utilization amount, the requirement to mold is not improved.Although the weight of common blower And less, also not high to the intensity requirement of mounting structure, but in some cases, such as high-power IH electric cooker cooling system Heat dissipation, the volume and power of blower also can accordingly rise, and when installation to coil brace, equally may require that the intensity of coil brace It is corresponding to rise.More importantly middle position of the coil brace due to being in cooling system, so volume usually will not be very Greatly, thickness is also required to control as far as possible, and therefore, quality is usually little, and bradyseism is ineffective with absorption vibration.And electric cooker Bottom case but avoids disadvantages mentioned above well, and volume can be very big, and quality can be very big, and directly contacts desk, floor etc. Fixed object, therefore, stability are splendid, and the absorption and filtering to vibration can reach extraordinary level.And due to vibration source Become lower branch so that blower is connect by passing through coil brace or coil panel with bottom case with the separation of cooling system other component Directly with bottom case necklace, stability is remarkably reinforced for support, decreases the possibility because of resonance caused by similar " hanging " state.By This by air duct wall construction 19 and the setting of blower 5 on bottom case 18 as it can be seen that both having reduced vibration and noise, having reduced costs, also do not had There is the firmness of the connection for reducing each component, is an inventive improvements to the prior art.The cooling system of the utility model is pacified Dress is simple, and component locations accuracy is high, and maintenance replacement component is convenient.

Bottom case 18 is provided with air outlet 14 on the air-out direction of radiator 42, and air outlet is usually in paliform, and size can It is determined according to the actual conditions that radiator and blower cooperate.Certainly, on the basis of air-flow guidance is fairly perfect, air outlet 14 can It is also what there is no problem so that 42 outlet air end of radiator slightly remote place or even top is arranged in.On the bottom case of 5 lower section of motor, if It is equipped with air inlet 17, is usually in paliform.To guarantee wind pressure and air quantity, between the lower end and the air inlet 17 of 5 flabellum of blower Preferred distance is in 1-10 millimeters of ranges.Screw column corresponding with fan installing structure or fixed can be set around air inlet 17 Position card column etc., can be fixed to bottom case 18 for blower 5.

In addition, blower 5 is set to 1 lower section of coil panel, automatically controlled mainboard 4 is set to the arrangement of 1 side of coil panel, hence it is evident that It is different from traditional stacked on top setting, the heat dissipation of coil panel 1 should be completed by avoiding air-flow in the past axially upwards, also wanted The problem of radiating at automatically controlled mainboard 4, substantially reduces volume.Being precisely controlled for air-flow is completed in tight space, by blower 5 Air-flow be divided into three parts, two bursts of tangential gas flows are respectively used to the heat dissipation of circuit board 41 and radiator 42 in automatically controlled mainboard 4, axial Air-flow is used for the heat dissipation of coil panel 1 (including disk body, coil, magnetic stripe etc.), so that three strands of air-flows possess the runner of oneself, energy respectively It is enough to work independently, it does not interfere with each other, reduces the turbulent flow of enclosure interior, just reduce the loss of energy yet.Multiply air-flow flows through All heat generating components in shell, being substantially filled with has expired each space, and its outlet is not overlapped, so that cooling system is even So-called air-flow " stagnant wake " is all not present in entire shell, so that air-flow all in space is all flowed, does not interfere with each other, each to take charge of Its duty, ties in.

Blower 5 is set to below coil panel 1 by paracentral position, can make full use of the space of 1 bottom of coil panel, because Be arranged in housing bottom surface mostly for current cooling fan air inlet, and blower height can control it is smaller, so putting Enter the lower section of coil panel 1, the thickness of electric cooker will not be obviously increased, while the width of shell side is obviously tailed off, it can also be with Say the space for increasing and other components being set.Secondly, this be arranged such that the axial air outlet range line circle disk 1 of blower 5 is close, It can be reduced as far as the loss of wind pressure, flow air-flow preferably along the gap of 1 outer surface of coil panel, preferably It radiates to entire coil panel 1.When coil brace 2 be basic cladding coil panel 1 it is closed when, this arrangement equally can be with Its advantage is played, axial flow hardly needs the guidance of any excessive parts, so that it may directly by magnetic stripe bracket 15 and even Notch 21 between narrow bars 16 blows into the gap between coil panel 1 and coil brace 2, and along by magnetic stripe, coil, strip muscles and bones The heat dissipation wind channel on equal surfaces flow to rapidly the various pieces of coil panel 1, eventually passes through the air outlet discharge cooling system of bottom case.

The tangential gas flow of 5 side of blower is effectively utilized in 5 side of blower in the setting of radiator 42, and from radiator The hot wind of 42 blowouts is expelled directly out bottom case, will not blow to other 41 components of circuit board, will not generate with other radiating airflows Interference, ensure that the duration and validity of heat dissipation.Furthermore, it is generally the case that the wind guide tank meeting face blower 5 of radiator 42 is remote Side from 2 center of coil brace, the port of 42 wind groove of radiator in height substantially with the side of blower 5 or lateral Air outlet is concordant, and apart from close (1mm-5mm), in this way, the tangential gas flow of blower 5 will be directly with greater pressure and air quantity Into 42 wind groove of radiator, radiating efficiency is improved.It is, of course, preferable to mode be motor thickness and radiator thickness it is basic Unanimously, radiating fin is vertically arranged, and extending direction is consistent with airflow direction.In this way, air-flow can compare when guiding lateral airflow Uniformly enter the radiating fin of radiator wind groove.In addition, one can also be arranged again below radiating fin in addition to upper cover plate The flowing of bottom plate, such air-flow will more have directive property.When the wind groove direction of radiator and airflow direction are inconsistent, then need Additional diversion component is by air-flow and the equidirectional feeding of wind groove, in some special circumstances, for example has spy to the trend of thermal current It, can be in this way when very requiring.In addition, from attached drawing 3 also it is clear that from least part of radiator 42 In within the scope of the upright projection of coil panel 1, that is to say, that the substantial portion of volume of radiator 42 is in 1 side lower part of coil panel Space in, in this manner it is possible to the space for making full use of this part extra, this for electric cooker electric pressure cooking saucepan class product especially Favorably.Also, due to radiator 42 be it is horizontal positioned, upper cover plate separates other components of hot wind and automatically controlled mainboard 4, And the effect for being directed across the tangential gas flow that gap blows to other elements is also acted, is equivalent to additional real using radiator 42 The effect for having showed air duct bottom wall, further saves space, improves current path.Certainly, so-called be horizontally disposed with not is exhausted Pair, it should be understood that it is approximate horizontal, for example be tilted within 5 ° and just belong within allowed band.As long as can make full use of Space around coil brace, the radiator 42 can also be set to described with the angle relative to horizontal direction less than 30 ° The side of blower 5.

Circuit board 41 is vertically arranged, preferably short side under, long side in side, but long side also may be implemented under it is practical Novel purpose.Short side is under, bottom and bottom sides that its most of element can be made most strong far from 1 electromagnetic interference of coil panel Edge region is conducive to protect component.For the product of electric cooker electric pressure cooking saucepan class, circuit board 41 is vertically arranged, can be abundant Using the depth of pot body, space is saved to greatest extent.For the utility model, circuit board 41 be erected in radiator 42 it On, and most preferred position is end of the radiator 42 far from 5 side of blower, in this way, the structure of a L-type is just constituted, Certainly, this is substantially L-shaped, as shown in Fig. 3.Here the side view that automatically controlled mainboard 4 is described with L-type, is in order to clear Positional relationship between easy description circuit board and radiator is not that limit automatically controlled mainboard 4 from the side must be a L Shape, actually this is also impossible, because the thickness of radiator 42 and circuit board 41 are different, is also set up on circuit board 41 There are various components.The both sides of L-type structure also allow for a degree of inclination, because under special circumstances, radiator It can be obliquely installed with circuit board, the L-type formed at this time would not be the L-type of a standard；In addition, if circuit board 41 is not close to The edge setting of radiator 42, for example leave left edge and be little by little arranged, entire automatically controlled mainboard 4 can also be made to seem not It is the L-type of a standard.But these set-up modes, it can substantially regard a L-type as, it is practical new to be possible to this Type purpose.The tangential gas flow produced by boasting from blower 5, other than largely flowing to radiator 42, a part of tangential gas flow passes through Gap of the radiator 42 between 2 outer wall of 5 end of blower and coil brace blows to other portions of automatically controlled mainboard 4 from bottom to top Point, although this subelement fever be not very acutely, due to foring new airflow channel so that heat dissipation is more uniform, Radiating efficiency is improved, all possible air duct is effectively utilized, so that the intracorporal air-flow of shell is sufficiently flowed, in automatically controlled mainboard Positive wind pressure is formd around 4, is filled with the space of side behind circuit board, and the hot air reflux for avoiding other heat dissipation original parts from generating is extremely The region of the circuit board.Certainly, the other positions or even circuit board 41 on 42 top of radiator also can be set in automatically controlled mainboard 4 Surface where component can not also face blower 5, although these not preferred arrangements are also than the arrangement of the prior art Mode will be got well, and the purpose in the saving space and cost of the utility model may be implemented.But from radiating efficiency and space utilization rate From, can all it be weakened compared to preferred embodiment, some arrangement forms, or even will increase the occupied shell sky in the part Between.Certainly, so-called be vertically arranged not is absolute, it should be understood that it is substantially vertical, such as be tilted within 5 ° just belong to it is fair Perhaps within the scope of.As long as the space around coil brace can be made full use of, circuit board 41 can also be relative to Vertical Square Be set to 42 top of radiator to the angle less than 30 °, for example, coil brace 2 side lower part space it is abundant when, so that it may Consider circuit board 41 being inclined at 42 top of radiator, the side lower part of coil brace 2 is protruded into one end, and the other end is arranged as far as possible In the range of radiator, in this way, the height of circuit board occupancy can be further reduced, so that compact-sized.Meanwhile heat transmission gas Stream still can be blown over from the component surface on circuit board.

With reference to Fig. 4, the position of online 2 outer bottom of coil support of air duct wall construction is nearby provided with fan installing structure 13, wind Machine mounting structure 13 is two blower fixed ears, has the mounting structure engaged on the installation cross bar of blower 5.Certainly, as before Described, the two fan installing structures 13 also can be set on air duct wall construction 19, and form is also possible to any suitable for peace Fill the structure of blower.

Air duct wall construction 19 includes the first wind path wall 7, and fence air inlet 17 is substantially directed around from three, and opening direction dissipates Hot device 42, other parts are around blower 5 close to the part at 1 center of coil panel.Two open ends extend towards the direction of radiator Certain length, by air-flow from the direction of the automatically controlled mainboard 4 of 5 side guide of blower.It is preferred that at least part of radiator is put into In opening range, such air quantity is easier to concentrate, and wind pressure also can centainly be kept.First wind path wall 7 can also have The a bit of arc convex for accommodating fan installing structure 13, for avoiding the interference between two components.First wind path wall 7 may be used also To be directly integrally formed with fan installing structure 13, blower 5 can be directly installed on wind path wall.Blower 5 is installed to bottom case 18 or first after wind path wall 7, and flabellum edge is greater than 1mm at a distance from radiator end face.Air duct wall construction 19 can also wrap The second wind path wall 8 is included, two the second wind path walls 8 are respectively arranged at the inside of first 7 two open ends of wind path wall, from assembling Structure 13 nearby starts to extend at an angle to the direction of radiator 42, extends substantially to the end face vertical edge of radiator, Height can be roughly equal with radiator height.First wind path wall 7 and the horizontal normal direction benchmark G at 5 center of blower are in 80-120 ° of angle (E), the second wind path wall 8 and the horizontal normal direction benchmark G at 5 center of blower are in 70-90 ° of angle (F), and the height of the second wind path wall 8 is less than Or the height equal to the first wind path wall 7.Certainly, the position of the first and second wind path walls is also not fixed.Two the second wind Road wall 8 can also be respectively arranged at the outside of first 7 two open ends of wind path wall, at this time the first wind path wall 7 and 5 center of blower Horizontal normal direction benchmark G is in 70-90 ° of angle, and the horizontal normal direction benchmark G at the second wind path wall 8 and 5 center of blower is in 80-120 ° of angle, and second The height of wind path wall 8 is greater than the height of the first wind path wall 7.To sum up, the lower wind path wall of opening inner side can Accurately to direct air flow to the wind groove entrance of radiator, wind pressure and air quantity into radiator can also be increased.And it is open The higher wind path wall in outside can gather a part of air-flow at random, and then guide to circuit board, enhance heat dissipation effect.Two Person, which works in coordination, can achieve extraordinary heat dissipation effect.

The first wind path wall 7 and the second wind path wall 8 of air duct wall construction 19 may be integrally formed, and can also be respectively formed in bottom On shell 18, core function is that the lateral airflow for generating the blower 5 is oriented to the radiator 42, while guidance passes through The air-flow in gap blows to the component on the circuit board 41 between 42 top of radiator and 2 outer surface of coil brace, and Cooling system is discharged from the circuit board side and top.With reference to attached drawing 4, due to being not located at circuit board 41 and coil brace The air duct wall construction extended between 2 bottom cases, the air-flow that gap passes through between 2 outer surface of coil brace at the top of radiator 42, The direction of circuit board can only substantially be blowed to, and blow to the air-flow of circuit board, as without good air duct guide and to Circuit board surrounding disperses, and will cause the raising of case temperature sometimes, and radiating efficiency is affected.Further, it is also possible to increase in electricity The air duct wall construction extended between 41 vertical direction two sides of road plate and 2 bottom surface of coil brace, for example, by the wind path wall in outside to The gap between automatically controlled mainboard 4 and coil brace 2 is closed in upper extension, although in this way, cost has certain rising, heat dissipation and It guides the effect of air-flow can be more preferable, will can be accurately directed in air flow collection on circuit board 41.Two kinds of designs can be heat dissipation Air-flow is divided into non-interfering three parts, it may be said that realizes the goal of the invention of the utility model.

Certainly, the either first or second wind path wall, concrete shape can be diversified, as long as can be complete The function of automatically controlled mainboard is oriented to just at by air-flow.Theoretically speaking main guide functions are completed by the first wind path wall 7, Second wind path wall 8, which rises, to be increased intensity, increases precision and a part of guide functions.Certainly, the second wind path wall 8 it is not necessary to, The second wind path wall can be not provided under the premise of meeting heat dissipation effect according to complete machine power difference or other influences condition 8。

Certainly, in the case where needing to be adjusted air quantity, air duct wall construction can also include that third wind path wall (is not schemed Show), for guiding part axial flow to tangential direction.In fact, air duct wall construction can make all known guidance gas The structure of stream can become air duct wall construction as long as the function that air-flow is oriented to automatically controlled mainboard can be completed.

In conjunction with Fig. 3, the air duct path that the air-flow of the present embodiment is passed by mainly has following three kinds:

Air duct A: distinguished and admirable from 5 bottom air inlet of blower, top blowout.The air-flow blown out at the top of blower 5, successively via coil branch Gap between the notch 21 of 2 bottom of frame, the outer surface and bottom shell body of the coil panel 1 is expelled to outside cooling system, in Fig. 3 Shown in the A of air duct.

Air duct B: distinguished and admirable from 5 bottom air inlet of blower, side blowout.The air-flow of side blowout assembles shape through the first wind path wall At wind pressure, a part of air-flow blows to radiator 42, and the rack surface across radiator 42 takes heat out of cooling system, such as Fig. 3 Shown in middle air duct B.

Air duct C: distinguished and admirable from 5 bottom air inlet of blower, side blowout.The air-flow of 5 side of blower blowout, it is poly- through the first wind path wall Collection forms wind pressure, and a part of air-flow blows to the circuit board by the gap between 42 top of radiator and coil panel outer surface 41, and it is bottom-up sequentially pass through component on the circuit board 41 and be expelled to outside cooling system, as shown in air duct C in Fig. 3.

In conclusion implement the utility model electromagnetic heating product cooling system, core be to cooling system at This control and the control flowed to radiating airflow, cooling system install air duct wall construction and motor to bottom case.With with Lower the utility model has the advantages that overall cost is low, vibrating noise is small, good heat dissipation effect, can be applied to the production of the Casseroles such as IH rice cooker, pressure cooker Product.

The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model Under, many forms can be also made, these are belonged within the protection of the utility model.

Claims (10)

1. a kind of electromagnetic heating product cooling system characterized by comprising coil panel (1), coil brace (2), automatically controlled mainboard (4), blower (5) and air duct wall construction (19), the coil brace (2) are socketed on the coil panel (1) outside, the blower (5) it is set to the bottom part down of the coil panel (1), the automatically controlled mainboard (4) includes circuit board (41) and radiator (42), institute The side that radiator (42) is horizontally placed on the blower (5) is stated, the circuit board (41) is set on the radiator (42) Portion, the air duct wall construction (19) are formed on bottom case (18), for guiding air-flow to the automatically controlled mainboard (4).

2. cooling system according to claim 1, which is characterized in that blower (5) installation to the air duct wall construction (19) or the bottom case (18).

3. cooling system according to claim 1, which is characterized in that the bottom case (18) goes out the radiator (42) It is provided with air outlet (14) on wind direction, air inlet (17) are provided with below the blower (5).

4. cooling system according to claim 1, which is characterized in that the coil brace (2) coats the coil panel (1) Outside, jagged (21) are arranged in bottom, and the air-flow blown out at the top of the blower (5) enters institute via the notch (21) It states the heat dissipation channel between coil brace (2) and the coil panel (1) and is expelled to outside cooling system.

5. cooling system according to claim 1, which is characterized in that the air duct wall construction (19) includes the first wind path wall (7), opening partially surrounds the part at the blower (5) the close coil panel (1) center towards the radiator (42), with Air-flow is guided from the blower (5) side to the direction of the automatically controlled mainboard (4).

6. cooling system according to claim 5, which is characterized in that the air duct wall construction (19) further includes the second air duct Wall (8), second wind path wall (8) is respectively arranged at the inside of (7) two open ends of the first wind path wall, from assembling Structure (13) nearby starts to extend at an angle to the direction of the radiator (42).

7. cooling system according to claim 6, which is characterized in that in first wind path wall (7) and the blower (5) The horizontal normal direction benchmark G of the heart is in 80-120 ° of angle, the horizontal normal direction benchmark of second wind path wall (8) and the blower (5) center G is in 70-90 ° of angle, and the height of second wind path wall (8) is less than or equal to the height of first wind path wall (7).

8. cooling system according to claim 6, which is characterized in that second wind path wall (8) is respectively arranged at described The outside of first (7) two open ends of wind path wall, the horizontal normal direction base of first wind path wall (7) and the blower (5) center Quasi- G is in 70-90 ° of angle, and the horizontal normal direction benchmark G at second wind path wall (8) and the blower (5) center is in 80-120 ° of angle, institute The height for stating the second wind path wall (8) is greater than the height of first wind path wall (7).

9. cooling system according to claim 1, which is characterized in that at least part of the radiator (42) is in institute In the drop shadow spread for stating coil panel (1).

10. cooling system according to claim 1, which is characterized in that the circuit board (41) is relative to vertical direction Angle less than 30 ° is set to the radiator (42) top, and the radiator (42) is relative to horizontal direction less than 30 ° Angle is set to the side of the blower (5).