CN206540193U - Electromagnetic oven - Google Patents

Abstract

The utility model provides an induction cooker, which comprises a bottom shell (1), a coil panel (2) positioned in the inner cavity of the bottom shell (1), a circuit board component (3) and a fan (4); the coil disc is characterized in that an air inlet hole (11) and a first air outlet hole (12) are formed in the bottom case (1), the first air outlet hole (12) is located in the side wall of the bottom case (1), a second air outlet hole (13) is further formed in the bottom wall (10) of the bottom case (1), and at least part of the second air outlet hole (13) is located under the coil disc (2). Like this through set up the second exhaust vent on the diapire of drain pan, and make at least part second exhaust vent be located the coil panel under to make the heat of coil panel bottom can directly follow the second exhaust vent and spill, reduced the temperature rise of coil panel effectively, improved the radiating efficiency of electromagnetism stove.

Description

Electromagnetic oven

Technical field

The utility model is related to household electrical appliance technical field, more particularly to a kind of electromagnetic oven.

Background technology

Electromagnetic oven has the advantages that heating quick, the flames of anger, safe ready, increasingly by consumer favor and recognize Can.

Electromagnetic oven includes：The shell of drain pan and the panel at the top of drain pan, drain pan and panel formation electromagnetic oven, drain pan Coil panel, circuit board assemblies and blower fan are provided with inner chamber.Wherein, coil panel is typically located at the horizontal center position of drain pan, electricity The alternating magnetic field that magnetic stove is mainly produced using coil panel is heated.The week side of boss of circuit board assemblies and wind turbine layout in coil panel. Blower fan is heat dissipation element, for being radiated to heater elements such as coil panel and circuit board assemblies.The side wall of drain pan is provided with side To exhaust vent, such as lateral exhaust vent is specifically located at the rear side of drain pan, and drain pan left side and/or right side.Work as electromagnetic oven During work, blower fan is rotated by high speed, and the heat on the heater elements such as coil panel and circuit board assemblies is arranged from lateral exhaust vent Go out, the temperature rise of heater element is reduced with this, it is ensured that each piece safety reliably works inside electromagnetic oven.

However, the limitation of the electromagnetic oven product layout due to prior art, only circuit board assemblies are apart from the lateral of drain pan Exhaust vent is nearer, thus circuit board assemblies radiating effect preferably, and positioned at drain pan horizontal center position coil panel then away from From drain pan lateral exhaust vent farther out, air channel path farther out, causes the radiating effect of coil panel undesirable.

Utility model content

In order to solve at least one problem mentioned in background technology, the utility model provides a kind of electromagnetic oven, Neng Gouti The radiating effect of high coil panel.

To achieve these goals, the utility model provides a kind of electromagnetic oven, including drain pan, in the bottom case inner cavity Coil panel, circuit board assemblies and blower fan；Offered on the drain pan into air holes and the first exhaust vent, the first air-out hole position In on the side wall of the drain pan, being further opened with the second exhaust vent on the bottom wall of the drain pan, and at least partly described second air-out Hole position is in the underface of the coil panel.So by opening up the second exhaust vent on the bottom wall of drain pan, and make at least partly the Two exhaust vents are located at the underface of coil panel, so that the heat of coil tray bottom can be directly from the immediately below coil panel Two exhaust vents shed, so as to significantly reduce the temperature rise of coil panel, improve the radiating efficiency of electromagnetic oven.

Optionally, in addition to enclose be located at the coil tray bottom periphery enclose muscle, and the muscle that encloses is provided with air inlet, institute The air side for stating air inlet and the blower fan is correspondingly arranged.The cooling wind of so blower fan air side discharge is enclosing the guide effect of muscle Under, enter to and enclosed in the space that muscle is surrounded with coil tray bottom from the air inlet for enclosing muscle, cool down wind by the heat of coil tray bottom Take away, directly from the second exhaust vent discharge below coil panel, i.e. provide the shorter air draft of a paths for coil panel and lead to Road, makes the radiating of coil panel faster.

Optionally, the top edge for enclosing muscle is fitted with the bottom surface of the coil panel.So to enclose muscle and coil panel bottom Relatively closed space is formed between face so that the air quantity for blowing to coil tray bottom more concentrates bigger, makes the radiating of coil panel more It hurry up, further increase the radiating efficiency of coil panel.

Optionally, second exhaust vent is located at the bottom wall by the remote air intake enclosed in the region that muscle enclose is set The side of mouth.So cause the distance between the second exhaust vent and air inlet farther out, make area of the cooling airflow through coil panel more Greatly, it is ensured that the cooling wind energy entered from air inlet enough spreads all over the bottom of whole coil panel, it is ensured that the radiating effect of coil panel.

Optionally, it is at an acute angle between plane where the axial and bottom wall of second exhaust vent to set.That is, Second exhaust vent to open up direction consistent with air supply direction, so that the discharge of hot blast is more smooth, the heat of coil tray bottom Amount disperses faster.

Optionally, the axial direction of second exhaust vent is vertical with plane where the bottom wall.

Optionally, the blower fan air side is additionally provided with the first wind screen rib, and the top surface of first wind screen rib is less than the line The plane enclosed where face of trying to get to the heart of a matter.Because the coil panel and circuit board assemblies in drain pan are respectively provided with certain setting height(from bottom), by setting Put the first wind screen rib so that the cooling wind energy discharged from blower fan air side enough directly blows to the main body of coil panel and circuit board assemblies Position, meanwhile, the top surface of the first wind screen rib makes cooling wind energy smoothly blow to coil panel bottom less than plane where coil panel bottom surface Portion is enclosed in the range of muscle.Moreover, when having water on the table top of electromagnetic oven, if water is from entering during air holes enters to drain pan, first keeps out the wind Muscle can stop to water, to prevent water from flowing to coil panel and circuit board assemblies position, so as to ensure that the peace of electromagnetic oven Reliably use entirely.

Optionally, described enclose is additionally provided with the second wind screen rib on the outside of muscle, and the height of second wind screen rib is enclosed higher than described The height of muscle.Blowing to the wind enclosed in muscle can also blow out from the gap between the coil on coil panel, with to coil panel upper surface Radiated, now the second wind screen rib is oriented to the hot blast of coil panel upper surface, it is gone out from first in base side walls Air holes is discharged, so as to further increase the radiating efficiency of whole coil panel.

Optionally, the outside of the coil panel is provided with the first fixed part, and the bottom wall of the drain pan is provided with can be with described the Second fixed part of one fixed part matching connection, second fixed position is enclosed between muscle and second wind screen rib in described.

Optionally, second exhaust vent is multiple, and multiple second exhaust vents are intervally arranged at the bottom of the drain pan On wall.

Construction of the present utility model and its other purposes and beneficial effect will by with reference to accompanying drawing to preferred real Apply the description of example and more obvious understandable.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are Some embodiments of the present utility model, for those of ordinary skill in the art, are not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.

The internal structure schematic diagram for the electromagnetic oven that Fig. 1 provides for the embodiment of the utility model one；

The structural representation of the drain pan for the electromagnetic oven that Fig. 2 provides for the embodiment of the utility model one.

Description of reference numerals：

1-drain pan；2-coil panel；3-circuit board assemblies；4-blower fan；5-enclose muscle；10-bottom wall；11-enter air holes； 12-the first exhaust vent；13-the second exhaust vent；14-the first wind screen rib；15-the second wind screen rib；16-the second fixed part； 21-the first fixed part；51-air inlet.

Embodiment

The internal structure schematic diagram for the electromagnetic oven that Fig. 1 provides for the embodiment of the utility model one.Fig. 2 is the utility model one The structural representation of the drain pan for the electromagnetic oven that embodiment is provided.Shown referring to Figures 1 and 2, the present embodiment provides a kind of electromagnetic oven, Including：Drain pan 1, panel (not shown), coil panel 2, circuit board assemblies 3 and blower fan 4.Panel can be glass panel, Can also be ceramic panel, panel is located at the shell at the top of drain pan 1, drain pan 1 and panel formation electromagnetic oven.It is understood that Drain pan 1 is cavity body structure, and coil panel 2, circuit board assemblies 3 and blower fan 4 are located in the inner chamber of drain pan 1.

Coil panel 2 and circuit board assemblies 3 are electrically connected, and coil panel 2 is specifically included：Coil plate rail and winding are on coil plate rail Coil, the bottom of coil plate rail can also set magnetic stripe.Igbt is specifically provided with circuit board assemblies 3 (Insulate-Gate Bipolar Transistor, abbreviation IGBT), bridge heap, inductance, electric capacity etc..Coil panel 2 and circuit The concrete structure of board component 3 is identical with the electromagnetic oven of prior art, will not be described in detail herein.Offered on drain pan 1 into the He of air holes 11 First exhaust vent 12, the first exhaust vent 12 is located on the side wall of drain pan 1.When electromagnetic oven works, coil panel 2 and circuit board assemblies 3 It can generate heat, blower fan 4 is heat dissipation element, for being radiated to coil panel 2 and the grade heater element of circuit board assemblies 3.Wherein, inlet air Hole 11 can be arranged on the side wall of drain pan 1, can also be arranged on the bottom wall 10 of drain pan 1, in the present embodiment, enter air holes 11 It is arranged on the bottom wall 10 of drain pan 1, the air intake of blower fan 4 is relative with entering air holes 11.Blower fan 4 can be centrifugal fan, can also Axial flow blower.First exhaust vent 12 is generally arranged on the left side wall or right side wall of the rear wall of drain pan 1 and drain pan 1.Blower fan 4 will Outside cooling wind is sucked from air holes 11 is entered, and cooling wind is to coil panel 2 and circuit board assemblies 3, by coil panel 2 and circuit board group Heat on part 3 is taken away, and then the first exhaust vent 12 of hot blast from the side wall of drain pan 1 is discharged, so as to be radiated to electromagnetic oven.

Because first exhaust vent 12 of the circuit board assemblies 3 generally on the side wall of drain pan 1 is closer to the distance, circuit board assemblies 3 Radiating effect preferably, and coil panel 2 is as heater block, is typically mounted at the horizontal center position of drain pan 1, coil panel 2 away from Distant from the first exhaust vent 12, i.e., air channel path farther out, causes the radiating effect of coil panel 2 undesirable.In order to solve The problem, in the present embodiment, is further opened with the second exhaust vent 13, and at least partly the second exhaust vent on the bottom wall 10 of drain pan 1 13 are located at the underface of coil panel 2.In the present embodiment, the second exhaust vent 13 be entirely located in the position of coil panel 2 just under Side, the heat of the bottom of coil panel 2 directly can disperse from the second exhaust vent 13 below.Certainly, in other implementations, Can also be that a part for the second exhaust vent 13 is located at the underface of coil panel 2, another part of the second exhaust vent 13 is arranged on The outside positioned at coil panel 2 of bottom wall 10, so such as the heat of circuit board assemblies 3 can also be from positioned at the outside of coil panel 2 Second exhaust vent 13 sheds, and improves the radiating efficiency of electromagnetic oven.

When being heated using the electromagnetic oven of the present embodiment, pan is placed on panel, after energization, the electricity of high frequency is had Stream is by the coil on coil panel 2, so as to produce the magnetic field force of countless closings, and the magnetic line of force in magnetic field can be produced countless by pan Small vortex, so that the pan heating being placed on panel, controls to be passed through the electric current of coil panel 2 by circuit board assemblies 3.Coil Disk 2 and circuit board assemblies 3 can generate heat in the course of the work, and blower fan 4 is by the cooling wind in electromagnetic oven external environment condition from entering air holes 11 It is sucked into drain pan 1, the cooling wind sucked by blower fan 4 directly blows to coil panel 2 and circuit board assemblies 3, cools down wind by coil panel 2 Driven with the heat on circuit board assemblies 3, then hot blast is blown out to outside electromagnetic oven from the first exhaust vent 12, at the same time, coil The heat of the bottom of disk 2 directly can be blown out from the second exhaust vent 13, that is to say, that add an exhaust vent, coil for coil panel 2 The heat of the bottom of disk 2 directly sheds from the second exhaust vent 13, and the heat of the upper surface of coil panel 2 can be directly from the first exhaust vent 12 Shed, so that the radiating of coil panel 2 is faster, effectively reduce the temperature rise of coil panel 2, so as to ensure that the normal of electromagnetic oven Work.In addition, can also set radiating fin on circuit board assemblies 3, the heat that circuit board assemblies 3 are operationally produced can be passed Radiating fin is directed at, is radiated by radiating fin, then a part for the air side of blower fan 4 blowout cools down wind to radiating fin Piece, the heat on radiating fin is taken away.Radiating fin is made up of the preferable material of heat conduction, for example, can be aluminium flake, this practicality It is new that this is not construed as limiting.

The electromagnetic oven that the present embodiment is provided, by opening up the second exhaust vent 13 on the bottom wall 10 of drain pan 1, and makes at least portion The second exhaust vent 13 is divided to be located at the underface of coil panel 2, so that the heat of the bottom of coil panel 2 can be directly from coil panel 2 Second exhaust vent 13 of underface sheds, so as to significantly reduce the temperature rise of coil panel 2, improves the radiating effect of electromagnetic oven Rate.

Wherein, the second exhaust vent 13 is specially multiple, and multiple second exhaust vents 13 are intervally arranged in the bottom wall 10 of drain pan 1 On.Multiple second exhaust vents 13, which can be arranged, to take on a different shape, such as, and multiple second exhaust vents 13 are arranged in concentric circles, this Utility model is not construed as limiting to the specific spread geometry of multiple second exhaust vents 13.In addition, the second exhaust vent 13 can be circular Hole or slotted eye or polygonal hole.The shape of all second exhaust vents 13 can be with identical, can also be different, this reality This is not construed as limiting with new, can specifically be set according to the actual requirements.

Further, the bottom periphery of coil panel 2, which also encloses to be provided with, encloses muscle 5, and encloses muscle 5 provided with air inlet 51, air inlet 51 are correspondingly arranged with the air side of blower fan 4.The cooling wind part discharged from the air side of blower fan 4 directly blows to circuit board assemblies 3, Another part enters to from the air inlet 51 for enclosing muscle 5 in the case where enclosing the guide effect of muscle 5 and encloses the sky that muscle 5 is surrounded with the bottom of coil panel 2 In, cooling wind takes away the heat of the bottom of coil panel 2, and directly the second exhaust vent 13 from the lower section of coil panel 2 is discharged, that is, Say, the exhaust vent 13 of muscle 5 and second is enclosed by setting, so as to provide the shorter air exhaust passage of a paths for coil panel 2, enter one Step improves the radiating efficiency of coil panel 2.When coil panel 2 is space winding coil panel, entering to the wind enclosed in muscle 5 can also be from line The gap blowout enclosed between the coil on disk 2, the heat on coil is taken away, then hot blast goes out from first on the side wall of drain pan 1 Air holes 12 is discharged.

In order that the cooling wind that must blow to the bottom of coil panel 2 is more concentrated, air quantity is bigger, will enclose the top edge and line of muscle 5 Enclose the bottom surface laminating of disk 2, that is to say, that usually, coil panel 2 when mounted, the bottom surface of coil panel 2 and the bottom wall 10 of drain pan 1 Between there is gap, the lower end for enclosing muscle 5 is fixedly installed on the bottom wall 10 of drain pan 1, and the upper end for enclosing muscle 5 is fitted in coil panel 2 Bottom surface, so encloses and a closed space relatively is formed between muscle 5 and the bottom surface of coil panel 2 so that blow to the bottom of coil panel 2 Air quantity more concentrate, cooling wind is fully utilized, so that the radiating of coil panel 2 is quicker.

When implementing, it can be enclosed in the bottom wall 10 of drain pan 1 and the second exhaust vent 13 is respectively provided with the region that muscle 5 is surrounded, The second exhaust vent 13 only can also be set in the local of the region, more preferred, the second exhaust vent 13 is enclosed positioned at bottom wall 10 The side of remote air inlet 51 in the region that muscle 5 is surrounded, the distance between such second exhaust vent 13 and air inlet 51 farther out, Make area of the cooling airflow through coil panel 2 bigger, it is ensured that the enough heat by the whole bottom of coil panel 2 of wind energy entered from air inlet 51 Amount is taken away.It is understood that the bottom wall 10 of drain pan 1 has certain thickness.Second exhaust vent 13 can vertically be opened in bottom On wall 10, i.e. the axial direction of the second exhaust vent 13 is vertical with the place plane of bottom wall 10.It is more preferred, the axle of the second exhaust vent 13 Set at an acute angle between the plane where the bottom wall 10 of drain pan 1, i.e. the second exhaust vent 13 is obliquely opened in drain pan 1 On bottom wall 10, the second exhaust vent 13 to open up direction consistent with air supply direction.Specifically it is to be understood that the second exhaust vent 13 has Certain length, horizontal range between the top of the second exhaust vent 13 and air inlet 51 be less than the bottom of the second exhaust vent 13 with Horizontal range between air inlet 51, so that the discharge of hot blast is more smooth, the heat of coil panel 2 disperses faster.

Because the coil panel 2 and circuit board assemblies 3 in drain pan 1 generally have certain setting height(from bottom), in the present embodiment In, the air side of blower fan 4 is additionally provided with the first wind screen rib 14, by setting the first wind screen rib 14 so that from the discharge of the air side of blower fan 4 Cooling wind energy enough directly blow to the main body section of coil panel 2 and circuit board assemblies 3.Meanwhile, the top surface of the first wind screen rib 14 is low Plane where the bottom surface of coil panel 2, so that the wind energy ensured from the air side blowout of blower fan 4 is enough smoothly entered to coil panel 2 bottoms are enclosed in the range of muscle 5.In addition, when having water on the table top of electromagnetic oven, if water is accidentally entered to drain pan 1 from air holes 11 is entered In, the first wind screen rib 14 can stop to water, to prevent water from flowing to coil panel 2 and the position of circuit board assemblies 3, so as to protect The safe and reliable of electromagnetic oven has been demonstrate,proved to use.

Further, the outside for enclosing muscle 5 is additionally provided with the second wind screen rib 15, and the second wind screen rib 15 height higher than enclosing muscle 5 Height.Blowing to the cooling wind enclosed in muscle 5 can also blow out from the gap between the coil on coil panel 2, with coil panel 2 Surface is radiated, in addition, the wind part blown out from the air side of blower fan 4 can blow to the top of coil panel 2, so by setting the Two wind screen ribs 15 so that the second wind screen rib 15 is oriented to the hot blast on the top of coil panel 2, make the part hot blast from the side of drain pan 1 First exhaust vent 12 of wall is discharged, so as to further increase the radiating efficiency of coil panel 2.

Wherein, the outside of coil panel 2 is provided with the first fixed part 21, it is to be understood that the first fixed part 21 is set online Enclose the outside of plate rail.The bottom wall 10 of drain pan 1 is provided with the second fixed part 16 that can be connected with first fixed part 21 matching, second Fixed part 16, which is located at, to be enclosed between the wind screen rib 15 of muscle 5 and second.Shown in reference picture 2, the second wind screen rib 15 is arc wind screen rib, i.e. Second wind screen rib 15 is arranged on the side of coil panel 2.When implementing, the first fixed part 21 is lug, and the second fixed part 16 is Stud, the first fixed part 21 is set on the second fixed part 16, is then fixed both by screw, so as to realize coil panel Install.Certainly, the first fixed part 21 can also be buckle, and the second fixed part 16 can be to match the hole clipping being connected with the buckle, The utility model is not limited thereto to the concrete shape of the first fixed part 21 and the second fixed part 16.

The electromagnetic oven that the present embodiment is provided, has to go out with blower fan by enclosing muscle in the setting of coil tray bottom periphery, and enclosing muscle The corresponding air inlet in wind side, and the position of the bottom wall correspondence coil panel in drain pan sets the second exhaust vent, so that coil panel bottom The heat in portion directly can shed from the second exhaust vent below, i.e. add one group and focus on coil panel bottom heat radiation Air channel structure, so as to effectively reduce the temperature rise of coil panel, improves the radiating efficiency of electromagnetic oven.

Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (10)

1. a kind of electromagnetic oven, including drain pan (1), the coil panel (2) in the drain pan (1) inner chamber, circuit board assemblies (3) and Blower fan (4)；Offered on the drain pan (1) into air holes (11) and the first exhaust vent (12), first exhaust vent (12) is located at On the side wall of the drain pan (1), it is characterised in that be further opened with the second exhaust vent (13) on the bottom wall (10) of the drain pan (1), And at least partly described second exhaust vent (13) is located at the underface of the coil panel (2).

2. electromagnetic oven according to claim 1, it is characterised in that be also located at the coil panel (2) bottom periphery including enclosing Enclose muscle (5), and the muscle (5) that encloses is provided with air inlet (51), the air inlet (51) and the air side pair of the blower fan (4) It should set.

3. electromagnetic oven according to claim 2, it is characterised in that the top edge for enclosing muscle (5) and the coil panel (2) Bottom surface laminating.

4. electromagnetic oven according to claim 2, it is characterised in that second exhaust vent (13) is located at the bottom wall (10) The side that muscle (5) encloses the remote air inlet (51) in the region set is enclosed by described.

5. the electromagnetic oven according to any one of Claims 1-4, it is characterised in that the axial direction of second exhaust vent (13) It is at an acute angle between plane where the bottom wall (10) to set.

6. the electromagnetic oven according to any one of Claims 1-4, it is characterised in that the axial direction of second exhaust vent (13) It is vertical with plane where the bottom wall (10).

7. the electromagnetic oven according to any one of Claims 1-4, it is characterised in that the air side of the blower fan (4) is additionally provided with First wind screen rib (14), the top surface of first wind screen rib (14) is less than the plane where the coil panel (2) bottom surface.

8. the electromagnetic oven according to any one of claim 2 to 4, it is characterised in that described enclose is additionally provided with the outside of muscle (5) Two wind screen ribs (15), the height of second wind screen rib (15) is higher than the height for enclosing muscle (5).

9. electromagnetic oven according to claim 8, it is characterised in that the outside of the coil panel (2) is provided with the first fixed part (21), the bottom wall (10) of the drain pan (1) is provided with the second fixed part that can be connected with first fixed part (21) matching (16), second fixed part (16) is located at described enclose between muscle (5) and second wind screen rib (15).

10. the electromagnetic oven according to any one of Claims 1-4, it is characterised in that second exhaust vent (13) is many Individual, multiple second exhaust vents (13) are intervally arranged on the bottom wall (10) of the drain pan (1).