WO2019205542A1

WO2019205542A1 - Pot stand assembly for electromagnetic heating apparatus

Info

Publication number: WO2019205542A1
Application number: PCT/CN2018/112143
Authority: WO
Inventors: 张小鹏
Original assignee: Zhang Xiaopeng
Priority date: 2018-04-28
Filing date: 2018-10-26
Publication date: 2019-10-31
Also published as: CN109168208A; CN209806112U; CN109297057A; CN209782743U; CN109246877A; WO2019205543A1; CN108401311A

Abstract

Disclosed is a pot stand assembly for an electromagnetic heating apparatus, said assembly comprising a magnetic conduction frame used for conducting magnetic force lines, and a support frame used for supporting a pot, the support frame being arranged at the top or the side of the magnetic conduction frame. The pot stand assembly for an electromagnetic heating apparatus conducts the magnetic force lines produced by an induction coil to the pot via the magnetic conduction frame, reduces magnetic resistance, increases heating efficiency, and decreases power loss.

Description

Pan holder assembly of electromagnetic heating device

Technical field

The invention relates to an electrical component, in particular to a pan holder assembly for an electromagnetic heating device of an electromagnetic oven, an electromagnetic cooking machine, an electromagnetic rice cooker, an electromagnetic kettle, an electromagnetic water heater and the like.

Background technique

The electromagnetic heating device uses an alternating magnetic field of the induction coil to generate an eddy current on the cookware, and the Joule heat of the eddy current heats the pan to achieve heating. The electromagnetic heating device has become a cooking appliance with high frequency of use in people's life because of its convenient heating and quickness, and no obvious fire.

Electromagnetic heating devices were invented by Westerners. For decades, only pans have been used, and pots with spherical bottom structures cannot be used. There is also a pan holder for an electromagnetic heating device on the market, and the electromagnetic heating device can use the pot of the spherical bottom structure by increasing the pan holder. However, the current pot rack will make the heating efficiency of the electromagnetic heating device low, and there is an urgent need for improvement.

Summary of the invention

The present invention is directed to solving the above-mentioned technical problems, and provides a pan holder assembly of an electromagnetic heating device, which can improve heating efficiency.

The invention is achieved by the following technical solutions:

A pan holder assembly for an electromagnetic heating device includes a magnetically conductive frame for conducting magnetic lines of force and a support frame for supporting the pan, the support frame being disposed on a top or side of the magnetically conductive frame.

Further, the magnetic conducting frame includes a body and a blocking portion for preventing generation of eddy currents.

Further, the magnetic field of the magnetic shield has a loop resistance greater than 10 ohms.

Further, a skirt for absorbing magnetic flux leakage is provided, the skirt being made of a conductive or magnetically permeable material, and the skirt being disposed outside the magnetic shield and the support frame.

Further, the support frame and/or the magnetic guide frame can be adjusted up and down.

Further, the magnetic conducting frame comprises a first bracket and a second bracket, and the first bracket is vertically disposed on the second bracket, and the first bracket and the second bracket are locked and fixed by the locking device.

As an improvement, the first bracket includes a first tubular portion, and the second bracket includes a second tubular portion that is sleeved on the second tubular portion and movable in a vertical direction.

As a further improvement, the first bracket is provided with a first guiding slot or a second slider, and the second bracket is correspondingly provided with a first slider or a second guiding slot.

As another improvement, the first bracket includes a first inclined surface portion, and the second bracket includes a second inclined surface portion that cooperates with the first inclined surface portion, and the first bracket is realized by mutual displacement of the first inclined surface portion and the second inclined surface portion Rise or fall.

The utility model has the beneficial effects that: compared with the prior art, the pot holder assembly of the electromagnetic heating device transmits the magnetic lines of force generated by the induction coil to the cookware through the magnetic conductive frame, reduces the magnetic resistance, improves the heating efficiency, and reduces the power loss.

DRAWINGS

The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

1 is a schematic structural view of a first embodiment of a pan holder assembly of an electromagnetic heating device of the present invention;

2 is a schematic structural view of a second embodiment of the pan holder assembly of the electromagnetic heating device of the present invention;

3 is a schematic structural view of a third embodiment of the pan holder assembly of the electromagnetic heating device of the present invention;

4 is a schematic structural view of a first embodiment of a magnetic shielding frame according to the present invention;

Figure 5 is a schematic structural view of a second embodiment of a magnetic shielding frame of the present invention;

6 is a schematic structural view of a third embodiment of a magnetic permeable frame of the present invention.

detailed description

A pot holder assembly for an electromagnetic heating device, comprising a support frame 100 for supporting a pot and a magnetic field guide 200 for conducting magnetic lines, and the magnetic lines generated by the induction coil are transmitted to the pot through the magnetic conductive frame 200 to reduce the magnetic resistance and improve The magnetic permeability further increases the heating efficiency and reduces the power loss. When in use, the pan holder assembly can be placed on an electromagnetic heating device such as an induction cooker having a panel, and a pan with a spherical bottom structure is placed on the pan holder assembly. The pan holder assembly can also be used on an electromagnetic heating device without a panel. Specifically, the magnetic conductive frame 200 is connected to the induction coil of the electromagnetic heating device, and the magnetic lines generated by the induction coil are transmitted to the cookware, and the support frame 100 supports the cookware.

In the past, the magnetic lines of force generated around the induction coil of the electromagnetic heating device were not effectively conducted, which easily caused electromagnetic leakage. After using the pot holder assembly of the present scheme, the magnetic lines of force generated around the induction coil are conducted to the pot through the magnetic shield 200, improving efficiency and reducing electromagnetic leakage.

Further, the magnetic shield 200 includes a body and a blocking portion for preventing generation of eddy currents. The barrier portion may be a fracture on the body or a non-magnetically permeable material filled on the body. By providing the blocking portion, the magnetic conducting frame 200 does not constitute a closed loop on the circuit, and the eddy current frame 200 is prevented from generating eddy current to reduce energy efficiency.

Further, the magnetic field of the magnetic shield 200 has a loop resistance greater than 10 ohms. By selecting a material that is magnetically conductive and has a higher resistivity, the measured loop resistance of the magnetic shield 200 is greater than 10 ohms, that is, the resistance of the body measured in the loop direction is greater than 10 ohms, thereby reducing or even eliminating The magnetic shield 200 generates eddy currents to reduce energy efficiency.

Further, the material of the magnetic conducting frame 200 is a high magnetic conductive material, which is convenient for conducting the magnetic lines of force generated by the induction coil to the pot.

The support frame 100 can be disposed on the top or side of the magnetic shield 200 as follows:

Pot holder assembly embodiment 1

As shown in FIG. 1, the support frame 100 may be disposed at the top of the magnetic shield 200.

Pot holder assembly embodiment two

As shown in FIG. 2, the support frame 100 may be disposed outside the magnetic conductive frame 200.

Pan holder assembly embodiment three

As shown in FIG. 3, the support frame 100 may be disposed inside the magnetic conductive frame 200.

Further, a skirt for absorbing magnetic flux leakage is also included, the skirt being made of a conductive or magnetically permeable material, and the skirt being disposed outside the magnetic shield 200 and the support frame 100. By setting the skirt, the magnetic flux leakage can be absorbed and the radiation can be reduced.

Further, the support frame 100 and/or the magnetic shield 200 can be adjusted up and down. Existing electromagnetic heating device, pot and magnetic guide 200 The distance between them is far, so that the air gap formed in the pot and the magnetic shield 200 has a large magnetic resistance, resulting in low heating efficiency. The solution provides a support frame 100 and/or a magnetic shield 200 It can be adjusted up and down so that it can be adjusted according to actual needs to adapt to different pots, so that the magnetic rack 200 is closer to the pot, reducing the air gap between the pot and the magnetic shield 200, and improving efficiency. If the magnetic shield 200 is used Direct support of the pot, for a long time will make the magnetic shield 200 overheating, affecting the heating effect, it is best to use the support frame 100 to support the pot, so that the magnetic rack 200 Maintain a certain gap between the pot and the pot to facilitate heat dissipation and reduce the magnetic resistance.

For ease of understanding, the support frame 100 and the magnetic shield 200 can be lifted and lowered as an example for description.

The magnetic rack 200 includes a first bracket 1 and a second bracket 2, and the first bracket 1 is vertically disposed on the second bracket 2, and the first bracket 1 and the second bracket 2 are locked and fixed by the locking device 3. The first bracket 1 moves up and down relative to the second bracket 2, and is adjusted and locked to a suitable position, and then locked and fixed by the locking device 3. The locking device 3 is preferably a fastening screw, and the first bracket 1 or the second bracket 2 is provided with a threaded hole 4 matched with the fastening screw, and is provided with a receiving fastening screw relative to the first bracket 1 or the second bracket 2 Relatively moving waist hole 5 or notch. The locking device 3 can also be a wedge block, a pin, or the like that can perform a fastening function. The support frame 100 includes a first core portion and a second core portion, and the first core portion is vertically disposed on the second core portion, and the first core portion and the second core portion are locked and fixed by the locking device 3.

Support frame 100 and magnetic shield 200 One of them may be an adjustable structure and the other one is an unadjustable fixed structure. The adjustable structure of the support frame 100 and the magnetic shield 200 can be referred to the following embodiments, the support frame 100 and the magnetic guide frame 200. The various embodiments can be combined with each other.

Magnetic trajectory 200 embodiment 1

Preferably, as shown in FIG. 4, the first bracket 1 includes a first tubular portion, and the second bracket 2 includes a second tubular portion that is sleeved on the second tubular portion and can be vertical Move in direction. The second tubular portion is provided with a threaded hole 4 that cooperates with a fastening screw, and the first tubular portion is provided with a waist hole 5 that accommodates relative movement of the fastening screw relative to the first bracket 1. Of course, it is also possible to provide that the second tubular portion is sleeved on the first tubular portion.

Preferably, the first bracket 1 and the second bracket 2 are respectively provided with an air inlet hole and a vent hole. In this way, the air is circulated, thereby taking away heat and improving the heat dissipation effect.

It is also possible to provide that the first bracket 1 is provided with an air inlet hole or a vent hole, and the second bracket 2 is correspondingly provided with a vent hole or an air inlet hole.

Preferably, the first bracket 1 and/or the second bracket 2 are provided with a fan. By providing a fan, on the one hand, it can directly dissipate heat, on the other hand, it cooperates with the air inlet hole and the exhaust hole to accelerate the air flow inside the pan frame assembly, thereby further improving the heat dissipation effect.

Magnetic gantry 200 embodiment two

As shown in FIG. 5, the first bracket 1 includes a first guiding groove, and the second bracket 2 includes a first slider that cooperates with the first guiding groove. The first bracket 1 is provided with a first connecting block 6 connected to the locking device 3.

The second bracket 2 includes a second guiding slot, and the first bracket 1 includes a second slider that cooperates with the second guiding slot. The height is adjusted by the manner in which the guide groove cooperates with the slider. For the description that is not described in this embodiment, refer to the first embodiment.

Magnetic gantry 200 embodiment three

As shown in FIG. 6, the first bracket 1 includes a first inclined surface portion, and the second bracket 2 includes a second inclined surface portion that cooperates with the first inclined surface portion, and the mutual displacement of the first inclined surface portion and the second inclined surface portion is realized. A rise or fall of a stent 1. The first bracket 1 is provided with a second connecting block 7 connected to the locking device 3. The first inclined surface portion includes a first inclined surface section, a second inclined surface section, and a first non-return section. Correspondingly, the second inclined surface section includes a third inclined surface section, a fourth inclined surface section, and a second non-return section, and the first non-return section The first bevel segment and the second bevel segment are connected, and the second non-return segment connects the third bevel segment and the fourth bevel segment, and the first non-return segment and the second non-return segment are used to prevent the first bracket 1 from coming loose. Of course, the first inclined surface and the second inclined surface may also be purely inclined or spiral. For the description that is not described in this embodiment, refer to the first embodiment.

Support frame 100 embodiment 1

The first core portion includes a third cylindrical portion, and the second core portion includes a fourth cylindrical portion that is sleeved on the fourth cylindrical portion and movable in a vertical direction. The specific structure of the support frame 100 in this embodiment can be understood by referring to the drawings of the first embodiment of the magnetic stand 200.

Support frame 100 embodiment two

The first core portion is provided with a third guiding groove or a fourth sliding block, and the second core portion is correspondingly provided with a third sliding block or a fourth guiding groove. The specific structure of the support frame 100 in this embodiment can be understood by referring to the drawings of the second embodiment of the magnetic stand 200.

Support frame 100 embodiment three

The first core portion includes a third slope portion, and the second core portion includes a fourth slope portion that cooperates with the third slope portion, and the first core portion is raised or lowered by mutual displacement of the third slope portion and the fourth slope portion. Support frame 100 in this embodiment The specific structure can be understood by referring to the drawings of Embodiment 3 of the magnetic shield 200.

The above embodiments are only intended to illustrate the technical solutions of the present invention, and are not intended to be limiting, and any modifications or equivalents may be made without departing from the spirit and scope of the invention.

Claims

A pan holder assembly for an electromagnetic heating device, comprising: a magnetic conducting frame for conducting magnetic lines of force and a support frame for supporting the cookware, the support frame being disposed on a top or side of the magnetic conductive frame.
A pan holder assembly for an electromagnetic heating apparatus according to claim 1, wherein said magnetic conducting frame comprises a body and a blocking portion for preventing generation of eddy currents.
A pan holder assembly for an electromagnetic heating apparatus according to claim 1, wherein said magnetically conductive frame has a loop resistance value greater than 10 ohms.
A pan holder assembly for an electromagnetic heating apparatus according to claim 1, further comprising a skirt for absorbing magnetic flux leakage, said skirt being made of a conductive or magnetically permeable material, and the skirt being disposed on the guide The outer part of the magnetic frame and the support frame.
A pan holder assembly for an electromagnetic heating apparatus according to claim 1, wherein said support frame and/or magnetic guide frame are vertically adjustable.
The pan holder assembly of an electromagnetic heating device according to claim 1, wherein the magnetic conducting frame comprises a first bracket and a second bracket, and the first bracket is vertically disposed on the second bracket, first The bracket and the second bracket are locked and fixed by a locking device.
A pan holder assembly for an electromagnetic heating device according to claim 6, wherein said first bracket comprises a first tubular portion, and said second bracket comprises a second tubular portion, said first tubular portion being sleeved The second cylindrical portion is movable and movable in the vertical direction.
The pan holder assembly of an electromagnetic heating device according to claim 6, wherein the first bracket is provided with a first guiding slot or a second slider, and the second bracket is correspondingly provided with a first slider or a first Two guiding slots.
A pan holder assembly for an electromagnetic heating apparatus according to claim 6, wherein said first bracket includes a first inclined surface portion, and said second bracket includes a second inclined surface portion that cooperates with said first inclined surface portion, The mutual displacement of a beveled portion and the second beveled portion effects the ascending or descending of the first bracket.