CN201318708Y

CN201318708Y - Electromagnetic oven

Info

Publication number: CN201318708Y
Application number: CNU2008200269893U
Authority: CN
Inventors: 朱泽春; 田海峰
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2009-09-30
Anticipated expiration: 2018-08-22

Abstract

The utility model relates to an electromagnetic oven, which comprises a housing, a wire coil, a fan and a control circuit board, wherein the housing is provided with an air inlet and an air outlet. The electromagnetic oven further comprises an inner housing, the inner housing is provided with an inner housing air inlet and an inner housing air outlet which respectively corresponds to the air inlet and the air outlet, and a relatively smaller and relatively sealed space is formed in the inner housing and used for accommodating the wire coil, the fan and the control circuit board. The utility model shares an inner housing for a plurality of machine models, thereby reducing the influence of the appearance molding on heat dissipation structural layout in a machine and achieving universality. The fan, the wire coil, radiating fins and the circuit board are all fixed in the inner housing so as to dissipate heat conveniently. Furthermore, a heat dissipation system has the advantages of no air delivery loss, no air tunnel dead angle and high heat dissipation efficiency.

Description

A kind of electromagnetic oven

Technical field

The utility model relates to the electromagentic furnace technology field, particularly a kind of electromagnetic oven with great heat radiation effect.

Background technology

Electromagnetic oven is that the principle of utilizing electromagnetic induction to produce eddy current heats pan, in the course of the work because the heating of electromagnetism drum and IGBT, and pan by panel to electromagnetic oven internal radiation heat, make the electromagnetic oven temperature inside than higher.The radiator structure of existing electromagnetic oven is following the covering of shell the aerofoil fan parallel with lower cover to be installed, and the air channel is set cold wind is blowed to as heat generating components such as IGBT, electromagnetism drums, then through covering the air outlet discharge of setting down.But the aerofoil fan self-characteristic is air inlet through hollow shaft and axially air-out, directly towards loam cake or panel, does not have relative confined space, and the heat radiation wind direction is at random, and radiating effect is poor, and the cooling-down effect of heat generating components is undesirable.

China's utility model patent discloses a kind of cooling system ZL200720068801.7 number.This electromagnetic oven heat radiation system comprises coil panel, air channel, fan and mainboard, and its air channel is rhombus or approximate rhombus and is provided with opening, and fan is arranged in the air channel, and mainboard is arranged on the opening direction in air channel, and coil panel is arranged on fan and mainboard top.This cooling system can be concentrated fan wind in the horizontal direction by the rhombus air channel and is blowed to mainboard, but its electromagnetic oven fan is influenced by machine inner structure to the heat radiation of components and parts bigger, easily form the internal heat dissipating dead angle, the part air-flow forms eddy current in the enclosure, because the employing of suction-type fan makes machine intimate that certain blast be arranged, the slit of existing electromagnetic oven structure shell upper and lower covers junction is run off certain air quantity, and heat radiation air quantity utilization rate is low, and the heat radiation wind direction is at random, and radiating effect is poor.

The utility model content

The purpose of this utility model is at the deficiencies in the prior art, and a kind of electromagnetic oven with better radiating effect is provided.

To achieve these goals, the utility model electromagnetic oven is reached by the following technical programs:

A kind of electromagnetic oven, comprise shell, drum, fan and control circuit board, described shell has air inlet and air outlet, described electromagnetic oven also includes inner casing, this inner casing has and air inlet and corresponding respectively inner casing air inlet and the inner casing air outlet of air outlet, and this inner casing forms a relative sealed space and accommodates described drum, fan, control circuit board in it.

To achieve these goals, the utility model electromagnetic oven can also be reached by the following technical programs:

A kind of electromagnetic oven, comprise shell, drum, fan and control circuit board, described shell has air inlet and air outlet, described electromagnetic oven also includes inner casing, this inner casing has the receiving space of distinguishing the relative sealing of corresponding inner casing air inlet and inner casing air outlet with air inlet and air outlet with the common composition one of the part of described shell, and described drum, fan, control circuit board are accommodated in it in this space.

The utility model is owing to drum, fan, circuit board being contained in the inner casing and forming fixedly layout, be convenient to concentrate heat radiation, the radiating efficiency height, and has versatility, because the soundproof effect of inner casing or inner cap has reduced the electromagnetic oven noise, can also prevent that the water that infiltrates electromagnetic oven inside from further entering fan, drum, fin and circuit board in addition.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the utility model specific embodiment overall schematic.

Fig. 2 is the utility model specific embodiment decomposing schematic representation.

Fig. 3 is the utility model specific embodiment movement schematic diagram.

Fig. 4 is another angle schematic diagram of the utility model specific embodiment movement.

Fig. 5 is the utility model specific embodiment movement decomposing schematic representation.

Fig. 6 is another angle decomposing schematic representation of the utility model specific embodiment movement.

Among the figure:

11, panel; 12, outer casing upper cover; 13 movements; 14, shell lower cover; 121, display circuit board; 130, thermal insulation board; 131, inner casing; 132, control circuit board; 133, fan; 134, drum; 141, air inlet; 142, air outlet; 1315, movement installing hole; 144, movement erection column; 1313, upper casing installing hole; 1311, lower casing installing hole; 1320, circuit board installing hole; 1314, mounting post; 1330, fan installing hole; 1316, fan erection column; 1332, projection; 1318, accepting groove; 1340, drum fixing hole; 1342, drum fixed leg; 1310, upper casing; 1312, lower casing; 1322, power supply access port; 1324, power adjusting knob; 1326, holding wire access port; 16, inner casing air inlet; 18, inner casing air outlet.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

To shown in Figure 6, it is the specific embodiment of the utility model electromagnetic oven as Fig. 1, and it comprises panel 11, shell, display circuit board 121, movement 13.Described shell comprises outer casing upper cover 12 and shell lower cover 14.Described panel 11 and display circuit board 121 are installed on the outer casing upper cover 12.Shell lower cover 14 is provided with air inlet 141 and air outlet 142.

Movement 13 comprises inner casing 131 and the control circuit board 132, fan 133, the drum 134 that are installed on movement 13 inner casings 131.Inner casing 131 is that plastic cement material is made.Control circuit board 132 comprises IGBT, IGBT fin and other electronic components.Inner casing 131 comprises upper casing 1310 and lower casing 1312.Be provided with upper casing installing hole 1313 around the upper casing 1310, be provided with lower casing installing hole 1311 around the lower casing 1312, above-mentioned upper casing installing hole 1313, lower casing installing hole 1311 can be fixed together upper casing 1310 and lower casing 1312 by screw.Control circuit board 132 is provided with circuit board installing hole 1320, and lower casing 1312 is provided with mounting post 1314.Screw passes circuit board installing hole 1320 and is fixed to mounting post 1314, control circuit board 132 can be fixed on the lower casing 1312.Fan 133 has support, and this support two is provided with fan installing hole 1330, and described upper casing 1310 correspondences are provided with fan erection column 1316.Screw passes fan installing hole 1330 and is fixed to fan erection column 1316, fan can be fixed on the upper casing 1310, and in addition, support two has projection 1332 respectively, and upper casing 1310 has corresponding accepting groove 1318, and projection 1332 can be contained in the accepting groove 1318.Described drum 134 is provided with 3 drum fixing holes 1340, and described upper casing 1310 correspondences are provided with 3 drum fixed legs 1342, and screw passes drum fixing hole 1340 and is fixed on the drum fixed leg 1342, drum can be fixed on the upper casing 1310.

Upper casing 1310 upper surfaces are offered a circular hole, and this Circularhole diameter is a bit larger tham the diameter of drum 134, and a diameter is a bit larger tham thermal insulation board 130 stickup all around of described circular hole or otherwise is sealingly fastened in around the described circular hole.Thermal insulation board 130 for mica or other thermal insulations preferably material be made, it can fine minimizing be transmitted to heat in the movement 13 from pan by panel 11.Certainly, in other embodiments, upper casing 1310 is not to offer circular hole, can directly thermal insulation board 130 be sticked on upper casing 1310 upper surfaces.In addition, thermal insulation board 130, does not influence normal enforcement of the present utility model and effect and reaches as not using thermal insulation board 130 just in order to prevent that better heat is transmitted in the inner casing.Inner casing 131 has inner casing air inlet 16 and the inner casing air outlet 18 corresponding with air inlet 141 and air outlet 142.Upper casing 1310 is provided with four movement installing holes 1315, and lower cover 14 correspondences are provided with four movement erection columns 144, passes movement installing hole 1315 by screw and is fixed on the movement erection column 144, movement 13 can be fixed on the lower cover 14.

During installation, the first step is fixed on control circuit board 132 on the lower casing 1312; In second step, drum 134 is fixed on the upper casing 1310; In the 3rd step, fan 133 is fixed on the upper casing 1310; The 4th step was fixed on lower casing 1312 on the upper casing 1310, offered rectangle fluting on upper casing 1,310 one sidewalls, and the part of control circuit board 132 is stretched out outside inner casing 131; The 5th the step, with thermal insulation board 130 sealing and fixing on upper casing 1310; In the 6th step, movement 13 is fixed on the lower cover 14.After the installation, the power adjusting knob 1324 of control circuit board 132, power supply access port 1322, holding wire access port 1326 all stretch out inner casing 131, the convenient adjusting and installation.

After installing by the way, movement 13 is except inner casing air inlet 16 and inner casing air outlet 18, other parts seal substantially, so, drum 134, fan 133, control circuit board 132 are contained in the relative sealed space, are a significant benefit to the heat radiation of drum 134, control circuit board 132, IGBT and IGBT fin.

The inner casing 131 of the utility model electromagnetic oven also can only have upper casing 1310, and upper casing 1310 is mounted on the shell lower cover 14, and its sidewall contacts with shell lower cover 14 and seals its contact position in case leak-stopping wind with glue or other modes.Drum 134, fan 133, control circuit board 132 also can be mounted on the shell lower cover 14 and by upper casing 1310 and be contained in the relative sealed space.

Existing electromagnetic oven fan is influenced by machine inner structure to the heat radiation of components and parts bigger, easily form the internal heat dissipating dead angle, the part air-flow is forming eddy current in casing, because the employing of suction-type fan makes machine intimate that certain blast be arranged, the slit of existing electromagnetic oven structure upper and lower covers junction is run off certain air quantity, and heat radiation air quantity utilization rate is low; And, existing electromagnetic oven heat radiation structure is subject to the influence of appearance and modeling, different appearance and modelings has determined the structure of internal heat dissipating layout, often there is each the components and parts temperature rise in the shell of different appearance and modelings of same parts to have in the test than big-difference, the temperature rise of individual metablocks device exceeds standard, the easy like this delay that causes the construction cycle, the raising of R﹠D costs and unit cost.In the utility model electromagnetic oven, fan 133 passes through air inlet 141, inner casing air inlet 1310 with wind inspiration movement 13 inside, fan 133 with drum 134, control circuit board 132, IGBT and the IGBT fin of wind in movement 13, blows out from inner casing air outlet 1312, air outlet 142 more then.But inner casing 13 has only inner casing air inlet 1310 and the turnover of inner casing air outlet 1312 air feeds, so, drum 134, control circuit board 132, IGBT and IGBT fin are installed concentratedly in inner casing 131 or by inner casing 131 and are accommodated, can make more concentrated drum 134, control circuit board 132, IGBT and the IGBT fin of blowing to of wind, make it concentrate heat radiation, and reduce air-flow dead angle, air channel, effectively reduce the excessive loss of air quantity, avoid air-flow to blow to the place of no heat dissipation element, improve the utilization rate of heat radiation air quantity, effectively reduce the components and parts temperature rise, improve machine life.Behind contrast test, under the similarity condition, the utility model electromagnetic oven reduces by 2 degree compared to existing electromagnetic oven IGBT temperature rise, and the drum temperature rise reduces by 10 degree, and other components and parts all have the temperature rise range of decrease in various degree.

Inner casing 131 can also reduce the noise of electromagnetic oven as a kind of shielding.

Inner casing 131 can also prevent from further to enter in drum 134, control circuit board 132 and the fan 133 of movement 13 inside from the water of electromagnetic oven panel 11 and infiltration electromagnetic oven inside, outer casing upper cover 12 junctions.

The utility model can make the shared movement of different types of machines, has reduced the influence of appearance and modeling to machine intimate radiator structure layout, has versatility; Fan 133, drum 134, fin are fixed on 131 li of inner casings together with control circuit board 132, are convenient to concentrate heat radiation, this cooling system does not almost have the air quantity loss, dead angle, no air channel, and the radiating efficiency height, and reduced the electromagnetic oven noise; This movement with great heat radiation effect can become unitized standard component, and different types of machines can use general movement, have improved production efficiency, effectively reduces the construction cycle, reduces R﹠D costs and unit cost.

Claims

1, a kind of electromagnetic oven, comprise shell, drum, fan and control circuit board, described shell has air inlet and air outlet, it is characterized in that: described electromagnetic oven also includes inner casing, this inner casing has and air inlet and corresponding respectively inner casing air inlet and the inner casing air outlet of air outlet, and this inner casing forms a relative sealed space and accommodates described drum, fan, control circuit board in it.

2, electromagnetic oven according to claim 1 is characterized in that: described inner casing is mounted on the shell.

3, electromagnetic oven according to claim 1 is characterized in that: described drum, fan, control circuit board are fixedly installed on the inner casing.

4, electromagnetic oven according to claim 1 is characterized in that: described inner casing comprises upper casing and lower casing.

5, electromagnetic oven according to claim 4 is characterized in that: described upper casing upper surface is fixed with a thermal insulation board corresponding with drum.

6, a kind of electromagnetic oven, comprise shell, drum, fan and control circuit board, described shell has air inlet and air outlet, it is characterized in that: described electromagnetic oven also includes inner casing, this inner casing has the receiving space of distinguishing the relative sealing of corresponding inner casing air inlet and inner casing air outlet with air inlet and air outlet with the common composition one of the part of described shell, and described drum, fan, control circuit board are accommodated in it in this space.

7, electromagnetic oven according to claim 6 is characterized in that: described inner casing is mounted on the shell.

8, electromagnetic oven according to claim 6 is characterized in that: described drum, fan, control circuit board are fixedly installed on the inner casing.

9, electromagnetic oven according to claim 6 is characterized in that: described inner casing upper surface is fixed with a thermal insulation board corresponding with drum.

10, electromagnetic oven according to claim 6 is characterized in that: the available glue sealing of described inner casing and electromagnetic oven housing contacts place.