CN112294107A

CN112294107A - Electromagnetic heating electric pressure cooker

Info

Publication number: CN112294107A
Application number: CN201910692162.9A
Authority: CN
Inventors: 朱泽春; 李鹏辉; 张硕
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2021-02-02
Anticipated expiration: 2039-07-30
Also published as: CN112294107B

Abstract

The invention provides an electromagnetic heating electric pressure cooker, which comprises a cooker body and a cooker cover, wherein the cooker body comprises an outer cooker, an inner cooker is arranged in the outer cooker, an opening flanging is outwards formed at the opening of the outer cooker, a bottom flanging is inwards formed at the bottom of the outer cooker, a bottom through hole is surrounded by the bottom flanging, an electromagnetic wire coil which is put in from top to bottom is supported on the bottom flanging, at least part of the electromagnetic wire coil is sunk into the bottom through hole, and the inner cooker is supported on the bottom flanging. The inner pot is supported on the bottom turned edge of the outer pot, so that the inner pot can be heated by using the electromagnetic wire coil, and the electromagnetic heating pot is simple in structure and low in cost.

Description

Electromagnetic heating electric pressure cooker

[ technical field ] A method for producing a semiconductor device

The invention relates to a kitchen cooking appliance, in particular to an electromagnetic heating electric pressure cooker.

[ background of the invention ]

The electric pressure cooker cooks under the environment higher than normal pressure, so the food can be quickly cooked. The electric pressure cooker generally comprises a cooker body and a cooker cover, wherein an inner cooker is arranged in the cooker body, the cooker cover comprises an inner cover, a sealing ring is arranged on the inner cover, the inner cover and the inner cooker are sealed to form a pressure cooking cavity, and food materials are placed in the inner cooker to perform pressure cooking. Because the inner cover and the inner pot are sealed to form a pressure cooking environment, the electric pressure cooker is also provided with a pressure bearing structure to ensure safe cooking.

According to the difference of the pressure bearing structure, the electric pressure cooker can be divided into the following types:

one of the pot is often called as a square pot, and the square pot is provided with a rotating lock ring, the lock ring is provided with cover teeth, the corresponding inner pot is provided with pot teeth, and the locking or unlocking of the pot cover and the pot body is realized by rotating the lock ring. The specific structure can refer to fig. 1 and fig. 2, and mainly comprises a pot body 10 and a pot cover 20, wherein an inner pot 30 is arranged in the pot body 10, pot teeth 31 are arranged on the inner pot 30, and the pot teeth 31 are distributed at intervals in the circumferential direction of the flanging of the inner pot 30. Be equipped with the locking ring 21 on the pot cover 20, circumference interval distribution has the lid tooth on the locking ring 21, can realize the interlock of lid tooth and pot tooth through rotating locking ring 21, like the state of fig. 1, can carry out pressure cooking this moment, realizes the back that staggers of lid tooth and pot tooth through rotating the locking ring, and pot cover 20 can separate with pot body 10 this moment, and pot cover 20 can be opened. Referring to fig. 1, the pot cover 20 further includes an inner cover 22, the inner cover 22 is sealed with the inner pot 30, when the locking ring 21 is rotated to the locking position, the inner cover 22 and the teeth 31 of the inner pot 30 are located between the locking ring 21, during heating and pressing, the inner cover 22 tends to float upwards, the inner pot 30 tends to float downwards, and the locking ring 21 prevents the inner cover 22 from separating from the inner pot 30, thereby forming a pressure cooking environment. The square cooker mainly depends on the locking ring 21 and the inner pot 30 to be meshed to bear pressure. Because the locking ring 21 is directly meshed with the inner pot 30, the inner pot 30 does not have too large downward force, and a heating device which can not bear pressure, such as an electromagnetic wire coil, can be arranged at the bottom for heating. The square cooker has relatively high cost because the inner cooker 30 needs to be provided with cooker teeth for bearing pressure.

Referring to fig. 3 and 4, the pot body 10 of the round cooker includes an outer pot 12 (also called a heat preservation cover), and is different from the square cooker in that the outer pot 12 of the round cooker is provided with pot teeth 31, the inner cover 22 is provided with cover teeth 221, and the inner cover 22 is rotated to unlock or lock the pot cover 20 and the pot body 20. The pressure-bearing structure is mainly that the inner cover 22 is meshed with the outer pot 12, the inner pot 30 is arranged in the outer pot 12, the heating element 40 is generally arranged below the inner pot 30, and when the inner pot 30 is heated and pressed upwards, the inner pot 30 floats downwards to act on the heating element 40, so the heating element 40 is generally a heating disc capable of bearing pressure. The electromagnetic wire coil cannot be arranged in a round cooker structure because the electromagnetic wire coil cannot bear pressure. The round cooker has low requirement on the strength of the inner cooker 30 and relatively low cost because the opening part of the inner cooker 30 is not occluded with the cooker cover.

The prior art also discloses a mode of arranging an electromagnetic wire coil in a round pot structure, wherein a support member such as CN201820447767.2 is arranged between an outer pot and an inner pot, but the cost of the support member is too high; or a supporting structure is arranged at the bottom of the outer pot to support the electromagnetic wire coil, such as CN201820959178.2, but the electromagnetic wire coil is hung below the outer pot, and the electromagnetic wire coil is easy to loose in the transportation or long-term use process, so that the distance between the electromagnetic wire coil and the inner pot is inconsistent, and the heating effect is influenced. Therefore, further improvement is desired.

[ summary of the invention ]

The present invention aims to solve, to some extent, one of the above-mentioned problems of the prior art. Therefore, the invention provides the electromagnetic heating electric pressure cooker, the inner pot is supported on the bottom flanging of the outer pot, so that the inner pot can be heated by using the electromagnetic wire coil, the structure is simple, and the cost is low.

The invention adopts the following technical scheme:

an electromagnetic heating electric pressure cooker comprises a cooker body and a cooker cover, wherein the cooker body comprises an outer cooker, an inner cooker is arranged in the outer cooker, an opening flanging is outwards formed at the opening of the outer cooker, a bottom flanging is inwards formed at the bottom of the outer cooker, a bottom through hole is surrounded by the bottom flanging, an electromagnetic wire coil which is put in from top to bottom is supported on the bottom flanging, at least part of the electromagnetic wire coil is sunk into the bottom through hole, and the inner cooker is supported on the bottom flanging.

In an embodiment of the invention, an installation groove is formed in the bottom flanging part in a sinking manner, an installation bulge is arranged on the electromagnetic wire coil, and the installation bulge is arranged in the installation groove.

In an embodiment of the invention, the mounting projection circumferentially projects from the electromagnetic coil.

In an embodiment of the invention, a plurality of the mounting grooves are arranged and circumferentially distributed on the bottom flanging.

In an embodiment of the present invention, the bottom surface of the mounting groove is provided with a screw hole for matching and fixing with the mounting protrusion.

In an embodiment of the present invention, the mounting protrusion is provided with a blind hole with a downward opening, the blind hole is disposed corresponding to the screw hole, and a screw passes through the screw hole and the blind hole to fixedly connect the screw hole and the blind hole.

In an embodiment of the invention, the inner side of the bottom flanging is provided with a flanging.

In an embodiment of the present invention, a projection of the electromagnetic wire coil in the vertical direction is larger than the bottom through hole.

In an embodiment of the invention, the upper surface of the electromagnetic wire coil is not higher than the upper surface of the bottom flanging.

In an embodiment of the invention, the pot cover comprises a locking device for engaging with the mouth flange of the outer pot.

The invention has the following beneficial effects:

1. according to the invention, the bottom flanging is formed inwards at the bottom of the outer pot, the bottom flanging encloses the bottom through hole, the material of the outer pot can be saved due to the bottom through hole, the electromagnetic wire coil which is put in from top to bottom is supported on the bottom flanging, and the electromagnetic wire coil is supported on the bottom flanging, so that the phenomenon that the distance between the electromagnetic wire coil and the inner pot is changed to influence the heating effect due to the fact that the electromagnetic wire coil is separated downwards in the long-term use or transportation process can be avoided. And when the electromagnetic wire coil is assembled, the electromagnetic wire coil can be put into the electromagnetic wire coil from top to bottom, the electromagnetic wire coil is pre-positioned, and then the electromagnetic wire coil and the outer pot are fixed together, so that the electromagnetic wire coil is convenient to install. The electromagnetic wire coil is at least partially immersed in the bottom through hole, so that the inner pot can be stressed and supported on the turned edge of the bottom, the electromagnetic wire coil can be used for heating, the downward pressure of the inner pot cannot be borne by the electromagnetic wire coil, and the purpose of reducing the cost is achieved. Because the electromagnetic wire coil is supported on the bottom flanging, when the inner pot is stressed to move downwards, the bottom flanging can be pressed to deform and move downwards, and the electromagnetic wire coil can move along with the bottom flanging, so that the distance between the inner pot and the electromagnetic wire coil is constant all the time, and the heating effect can be ensured.

2. According to the invention, the bottom flanging part area sinks to form the mounting groove, the electromagnetic wire coil is provided with the mounting protrusion, the mounting protrusion is arranged in the mounting groove, and the mounting protrusion is matched with the mounting groove for matching and positioning, so that the position of the electromagnetic wire coil is ensured to be fixed. The mounting groove is formed by sinking the partial area of the bottom flanging, the bottom flanging is used for bearing and supporting the inner pot, and the bottom surface of the mounting groove is used for bearing and supporting the electromagnetic wire coil, so that the distance between the electromagnetic wire coil and the inner pot is mainly determined by the sinking depth of the bottom flanging, the constant distance can be ensured, and the assembly error can be avoided.

3. The bottom surface of the mounting groove is provided with a screw hole for matching and fixing with the mounting protrusion. The mounting groove is located the bottommost of outer pot, can conveniently be in the same place outer pot and electromagnetic wire coil fixed from down up through the screw, conveniently beat the mounting screw, and can avoid the screw to expose.

4. The upper surface of the electromagnetic wire coil is not higher than the upper surface of the bottom flanging. Therefore, the inner pot can be firstly contacted with the bottom flanging when the inner pot moves downwards under the upper pressure, the upper pressure cannot be applied to the electromagnetic wire coil, and the service life of the electromagnetic wire coil is ensured.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic pressure-bearing diagram of a "square cooker" in the prior art;

FIG. 2 is a schematic diagram of a prior art "square pot" product;

FIG. 3 is a pressure-bearing schematic diagram of a "round cooker" in the prior art;

FIG. 4 is a schematic view of a prior art "round pot" product;

FIG. 5 is a cross-sectional view of the electric pressure cooker in accordance with the first embodiment;

FIG. 6 is a cross-sectional view of the pot body of the electric pressure cooker in the first embodiment;

FIG. 7 is a schematic view of an outer pot and a wire coil according to the first embodiment;

FIG. 8 is a schematic view of the assembly of the outer pot and the wire coil according to the first embodiment;

FIG. 9 is a schematic view of the outer pot in accordance with the first embodiment;

FIG. 10 is a schematic view of an outer pot and a wire coil according to the second embodiment;

fig. 11 is a schematic view of the electric pressure cooker of the third embodiment.

Reference numerals:

the pot body 10, the electromagnetic wire coil 11, the mounting protrusion 111, the blind hole 112, the tray frame 113, the coil 114, the magnetic stripe 115, the flexible supporting pad 116, the through hole 117, the outer pot 12, the mouth flange 13, the bottom flange 14, the mounting groove 141, the screw hole 142, the flange 143, the bottom through hole 15, the annular heat insulation ring 16, the middle ring 17, the pot cover 20, the locking ring 21, the inner cover 22, the cover teeth 221, the inner pot 30, the pot teeth 31, the inner pot side wall 32, the protrusion 33, the inner pot bottom wall 34, the heating element 40, the bottom temperature measuring device 50, the temperature measuring cap 51, the thermistor 52, the spring 53 and the top temperature measuring device 60.

[ detailed description ] embodiments

The invention provides an electromagnetic heating electric pressure cooker, which comprises a cooker body and a cooker cover, wherein the cooker body comprises an outer cooker, an inner cooker is arranged in the outer cooker, an opening flanging is outwards formed at the opening of the outer cooker, a bottom flanging is inwards formed at the bottom of the outer cooker, a bottom through hole is surrounded by the bottom flanging, an electromagnetic wire coil which is put in from top to bottom is supported on the bottom flanging, at least part of the electromagnetic wire coil is sunk into the bottom through hole, and the inner cooker is supported on the bottom flanging.

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

Example one

As shown in fig. 5-9, the electromagnetic heating electric pressure cooker provided in this embodiment includes a cooker body 10 and a cooker cover 20, the cooker body 10 includes an outer cooker 12, an inner cooker 30 is disposed in the outer cooker 12, an opening flange 13 is outwardly formed at an opening of the outer cooker 12, a bottom flange 14 is inwardly formed at a bottom of the outer cooker 12, a bottom through hole 15 is defined by the bottom flange 14, an electromagnetic wire coil 11 is supported on the bottom flange 14 and is placed from top to bottom, the electromagnetic wire coil 11 is at least partially immersed in the bottom through hole 15, and the inner cooker 30 is supported on the bottom flange 14. The inner pot 30 is heated by the electromagnetic wire coil 11, the inner pot 30 is supported by the bottom flanging 14, and the electromagnetic wire coil 11 can be prevented from being damaged by pressing when the inner pot is pressed upwards. The electromagnetic wire coil is placed into the outer pot from top to bottom and supported on the bottom flanging 14, so that the electromagnetic wire coil 11 and the outer pot 12 can be tightly connected, and different from the prior art that the electromagnetic wire coil is hoisted and fixed below the outer pot, by utilizing the structure of the invention, the electromagnetic wire coil 11 is not easy to loosen to cause the change of the distance between the electromagnetic wire coil and the inner pot, thereby ensuring the stable heating effect.

In this embodiment, referring to fig. 7, a mounting groove 141 is formed in a partial region of the bottom flange 14 in a sinking manner, a mounting protrusion 111 is arranged on the electromagnetic wire coil 11, and the mounting protrusion 111 is arranged in the mounting groove 141. Preferably, the mounting projection 111 projects circumferentially from the electromagnetic coil. The electromagnetic coil can therefore be attached to the bottom flange 14 by means of the mounting projections 111. Because the bottom flanging 14 sinks partially to form the mounting groove 141, when the inner pot 30 is put into the outer pot and pressed upwards, the non-sinking area of the bottom flanging 14 can directly support the inner pot 30, thereby protecting the electromagnetic wire coil 11.

In this embodiment, the plurality of mounting grooves 141 are circumferentially distributed on the bottom flange 14. The electromagnetic wire coil 11 can be circumferentially restricted by the plurality of circumferentially disposed mounting grooves 141. After the electromagnetic wire coil 11 is placed into the outer pot from top to bottom, circumferential rotation cannot occur, and installation and fixation are facilitated.

In this embodiment, referring to fig. 6, the bottom surface of the mounting groove 141 is provided with a screw hole 142 for fixing with the mounting protrusion. The electromagnetic wire coil and the outer pot can be fixed together by screws passing through the screw holes 142. Preferably, the mounting protrusion is provided with a blind hole 112 with a downward opening, the blind hole 112 is disposed corresponding to the screw hole 142, and a screw passes through the screw hole and the blind hole to fixedly connect the two. Since the blind hole 112 is opened downwards, the screw is driven from bottom to top, so the screw is not exposed. Furthermore, the screw is located in the area of the bottom flange 14, and the electromagnetic wire coil 11 does not have adverse effects on heating of the screw.

In this embodiment, the inner side of the bottom flange 14 is provided with a flange. The hem may increase the strength of the bottom hem 14. And the hem can carry out spacing to electromagnetic wire coil 11. The inner side of the folded edge 143 of the embodiment is folded upwards to form, and after the electromagnetic wire coil is placed into the outer pot, the folded edge 143 can also limit the electromagnetic wire coil in the radial direction, so that the position stability of the electromagnetic wire coil is ensured. In other embodiments, the folded edge can be formed by folding downwards, so that the strength of the supporting folded edge can be enhanced. In order to improve the strength of the bottom flange 14, the bottom flange may be made into a wave shape or provided with ribs.

In the present embodiment, the projection of the electromagnetic wire coil 11 in the vertical direction is larger than the bottom through hole 15. The electromagnetic wire coil 11 can be supported on the bottom flange 14, and the inner pot 30 is also supported on the bottom flange 14, so that when the inner pot 30 presses upwards and applies downward force to the bottom flange 14, even if the bottom flange 14 deforms, the electromagnetic wire coil 11 can move along with the bottom flange 14, so that a constant gap can be ensured between the bottom flange 14 and the inner pot 30, and the heating effect is not influenced.

In this embodiment, the upper surface of the electromagnetic wire coil 11 is not higher than the upper surface of the bottom flange 14. When the inner pot 30 moves downwards under the upward pressure, the inner pot can firstly contact with the bottom flanging 14, and the downward force during the upward pressure cannot be applied to the electromagnetic wire coil, so that the service life of the electromagnetic wire coil 11 is ensured.

In this embodiment, the lid 20 comprises locking means for engaging the mouth flange 13 of the outer pot. The locking device can be cover teeth on the cooker cover 20, cooker teeth are formed on the opening flanging 13 of the outer cooker, and the cover teeth and the cooker teeth are meshed or staggered by rotating the cooker cover 20; the locking device can also be a caliper on the pot cover 20, and the caliper can be movably arranged on the pot cover to engage or stagger the opening flanging 13. The oral area of outer pot 12 of this embodiment outwards is formed with oral area turn-ups 13, the bottom of outer pot inwards is formed with bottom turn-ups 14, oral area turn-ups 13 is used for with the closure of pot cover 20, bottom turn-ups 14 is used for supporting interior pot, the pot cover forms pressure cooking cavity with interior pot is sealed, when pot temperature pressure rose in the electromagnetic wire dish heating, the pot cover had the trend of rebound, interior pot has the trend of downward removal, and oral area turn-ups 13 and pot cover interlock are used for preventing the pot cover from shifting up, the pot is in the bottom turn-ups support, be used for preventing interior pot from moving down, the bearing atress has been realized through the turn-ups structure about the outer pot. The width of the bottom flange 14 of the present embodiment is greater than the width of the mouth flange 13, so that the upper and lower forces of the outer pot are balanced. Because bottom turn-ups 14 forms for outer pot bottom is inside, and oral area turn-ups 13 forms for outer pot oral area is outside, and oral area turn-ups 13's outer perimeter can be far away than bottom turn-ups 14 internal perimeter, and in order to ensure the stress balance, the width of bottom turn-ups is greater than the oral area turn-ups for upper and lower lifting surface can equal. Preferably, the engagement area of the flange of the engagement opening part of the locking device is equal to the contact area of the flange of the bottom part and the inner pot.

In this embodiment, the mouth flange 13 is integrally formed on the outer pot 12. The bottom flange 14 is integrally formed on the outer pan 12. The integral molding is convenient for manufacturing and can ensure the strength. The outer pot is made of metal materials, such as iron or stainless steel. The diameter of the bottom through hole is 1/2-19/20 of the diameter of the outer pot, so that the strength and the material cost of the bottom flanging can be considered. When the diameter of the bottom through hole is smaller than 1/2 of the diameter of the outer pot, the width of the bottom flange is too large, materials are wasted, and when the diameter of the bottom through hole is larger than 19/20 of the diameter of the outer pot, the width of the bottom flange is too small, the supporting stress area is limited, and the supporting strength is affected.

In this embodiment, referring to fig. 7, the mouth flange 13 is formed with a pot tooth 31. The locking device is a cover tooth on the pot cover 20, and the cover tooth is meshed with or staggered with the pot tooth by rotating the pot cover 20, so that the pot cover 20 and the pot body 10 are locked and unlocked.

In this embodiment, referring to fig. 6, an annular heat insulation ring 16 is arranged below the mouth portion flange 13. It can be understood that the pot body 10 further comprises a middle ring 17, the middle ring 17 is arranged around the outer pot 12, the middle ring 17 is a plastic part, and the annular heat insulation ring 16 is arranged below the mouth flanging 13 and is positioned on the mouth flanging 13 and the middle ring 17 support, so that heat of the outer pot 12 can be prevented from being directly transferred to the middle ring 17. It will be appreciated that pan body 10 further includes an outer shell (not shown) which is a plastic component, outer pan 12 is disposed within the outer shell, and inner pan 30 is disposed within outer pan 12.

In this embodiment, referring to fig. 6 and 8, the electromagnetic wire coil 11 includes a tray 113, a coil 114 and a magnetic strip 115, the coil 114 is wound on the tray 113, the magnetic strip 115 is fixed on the tray 113, the mounting protrusion 111 is provided on the tray 113, and preferably, the mounting protrusion 111 is integrally formed on the tray 113 and protrudes from the tray 113 in the circumferential direction. The projection of the coil 114 of the present embodiment in the vertical direction is smaller than the bottom through hole 15, because the coil 114 will generate a magnetic field to cut the inner pot after the alternating current is introduced, so that the inner pot 30 itself generates heat, and the arrangement makes the outer pot 12 less affected by the magnetic field generated by the coil 114. Specifically, the transverse distance between the coil 114 and the bottom flange 14 is greater than 5mm, so that the outer pot 12 is difficult to be influenced by a magnetic field.

Further, the projection of the magnetic stripe 115 in the vertical direction is also located in the bottom through hole 15. The magnetic strip 115 may act to focus the magnetic field generated by the coil so that heating of the magnetic field to the outer pan 12 may be avoided.

In this embodiment, in order to compromise the cost and the heating effect of interior pot 30, it is with the magnetic conduction layer to attach on interior pot diapire, the projection of magnetic conduction layer in vertical direction is greater than bottom through-hole 15, consequently can make full use of the produced area in magnetic field of electromagnetic wire coil heats. Because only the bottom of the inner pot is provided with the electromagnetic wire coil, the bottom wall of the inner pot can be only attached with the magnetic conduction layer without attaching the magnetic conduction layer on the side wall of the inner pot, and the purpose of reducing the cost can be achieved.

In addition, in this embodiment, referring to fig. 6, the bottom flange 14 is used for supporting the bottom wall of the inner pot, an electromagnetic wire coil is arranged below the inner pot, a first preset distance D1 is provided between the electromagnetic wire coil 11 and the inner pot 30, and the thickness of the bottom wall 34 of the inner pot is greater than that of the side wall 32 of the inner pot. A specific D1 may be 5-50 mm. The first preset distance D1 is set to avoid damage to the electromagnetic wire coil when dry burning occurs. Because the electromagnetic wire coil is the working of plastics, if with interior pot and electromagnetic wire coil direct contact, heat transfer for the electromagnetic wire coil when interior pot is burnt futilely for the electromagnetic wire coil is burnt out. When the inner pot 30 is pressed upwards, the locking device on the pot cover is locked with the flanging at the opening part of the outer pot, so the inner pot 30 has the tendency of moving downwards, the downward moving force can be directly transmitted to the bottom flanging 14 through the bottom wall of the inner pot, the bottom wall 34 of the inner pot can bear great bearing force, and the side wall of the inner pot basically can not receive the bearing force, therefore, when the inner pot 30 is designed and manufactured, the thickness of the bottom wall of the inner pot can be larger than that of the side wall of the inner pot, the material is saved on the premise of meeting the bearing requirement, and the cost is further reduced. The inner pot 30 has two manufacturing methods, one is directly formed into the inner pot with thicker inner pot bottom wall, the other is formed into the inner pot with even thickness, and then a layer of reinforcing layer is added on the inner pot bottom wall to reach the thicker inner pot bottom wall, the reinforcing layer can be made by adhering reinforcing sheets on the inner pot bottom wall, or can be made by directly spraying and thickening the inner pot bottom wall, not only the inner pot bottom wall has magnetic conductive property, but also the reinforcing layer attached on the inner pot bottom wall is made of magnetic conductive material, has magnetic conductive property, and can be matched with an electromagnetic wire coil to heat. Because the inner pot bottom wall and the outer pot bottom flange are supported and stressed, the inner pot bottom wall is designed to be thicker correspondingly, so that the strength of the inner pot bottom wall is improved, the electric pressure cooker structure is matched, and the purpose of comprehensively reducing the cost is achieved.

Example two

In this embodiment, a flexible supporting pad is added on the basis of the first embodiment, specifically, referring to fig. 10, the electromagnetic wire coil 11 of this embodiment is provided with the flexible supporting pad 116, the inner pot 30 supports against the flexible supporting pad 116, a first preset distance D1 is provided between the electromagnetic wire coil 11 and the inner pot 30, a second preset distance D2 is provided between the bottom flange and the inner pot, and D1 is greater than D2. When initial culinary art, outer pot is put into to interior pot, through pot in flexible supporting pad 116 direct support, when electromagnetic heating is carried out to the interior pot of electromagnetic wire coil 11, interior pot can take place slight vibrations, through the vibrations of pot 30 in flexible supporting pad 116 can slow down, and then less noise. After the inner pot 30 is heated and pressed upwards, the opening flanging 13 of the outer pot 12 is locked with the pot cover 20, so the inner pot 30 tends to move downwards, the flexible supporting pad deforms, the supporting force of the flexible supporting pad is limited, the inner pot 30 moves downwards, and D1 is larger than D2, so the inner pot can be in direct contact with the bottom flanging when moving downwards under pressure, the bottom flanging supports the inner pot 30, and the electromagnetic wire coil is fixed on the bottom flanging, so that even if the bottom flanging deforms and moves downwards when the inner pot moves downwards under pressure, the electromagnetic wire coil can also move downwards along with the pressure, the inner pot can not be in direct contact with the electromagnetic wire coil 11 all the time, and the electromagnetic wire coil 11 can be protected. Preferably, the flexible support pad 116 has a predetermined amount of elastic deformation, which is greater than D2. When the inner pan 30 moves up and down, the flexible support pad 116 deforms, and since the predetermined amount of elastic deformation is greater than D2, it is ensured that the inner pan 30 is supported on the bottom flange 14 after the deformation. Specifically, the flexible supporting pad 116 may be a silicone pad or a rubber pad, which has certain elasticity and is resistant to high temperature. The electromagnetic wire coil is provided with a plurality of mounting holes, the silica gel pad is directly clamped in the mounting holes, and the surface of the silica gel pad is higher than the upper surface of the electromagnetic wire coil to directly contact the inner pot 30. The silica gel pad can be a plurality of support points that circumference distributes on the electromagnetic wire coil, also can be the support circle of a circle or many circles that distributes on the electromagnetic wire coil. It will be appreciated that the flexible support pad 116 is made of a non-magnetic material to avoid heating by the electromagnetic coil 11.

Preferably, in the present embodiment, the flexible supporting pads 116 are distributed on the mounting protrusions 111. Since there is no coil under the area where the mounting protrusions 111 are distributed, the inner pot 30 is not directly heated by the coil at the position where it contacts the flexible supporting pad 116, but is heated by heat conduction, and the relative temperature is lower, so that the life of the flexible supporting pad 116 can be improved.

EXAMPLE III

In this embodiment, a bottom temperature measuring device is added on the basis of the first embodiment. Specifically, referring to fig. 11, a bottom temperature measuring device 50 is arranged on the electromagnetic wire coil 11, and the upper surface of the bottom temperature measuring device 50 is not lower than the bottom flange 14. Because the bottom flange 14 directly supports the inner pot, and the upper surface of the bottom temperature measuring device 50 is not lower than the bottom flange 14, the bottom temperature measuring device 50 can be ensured to directly contact the inner pot 30 for bottom temperature measurement, thereby obtaining ideal cooking effect.

Specifically, the center of the electromagnetic wire coil 11 is provided with a through hole 117, and the bottom temperature measuring device 50 is floatably arranged in the through hole 117. When the inner pot 30 is taken out, the bottom temperature measuring device 50 floats on the surface of the electromagnetic wire coil, and when the inner pot 30 is put into the outer pot, the inner pot 30 presses the bottom temperature measuring device 50 down to ensure that the inner pot 30 and the bottom temperature measuring device 50 can be tightly attached together, thereby achieving the ideal temperature measuring effect.

In this embodiment, the bottom temperature measuring device 50 includes a temperature measuring cap 51 and a thermistor 52 located in the temperature measuring cap, and the upper surface of the temperature measuring cap 52 is higher than the electromagnetic wire coil 11. Therefore, the temperature measuring cap 51 can be directly contacted with the inner pot 30, and the thermistor 52 is positioned in the temperature measuring cap 51 and can play a role in protecting the temperature measuring cap. Further, the bottom temperature measuring device further comprises a spring 53, one end of the spring is abutted to the electromagnetic wire coil 11, and the other end of the spring is abutted to the temperature measuring cap 51. The spring 53 can realize the up-and-down floating of the bottom temperature measuring device 50 in the through hole of the electromagnetic wire coil. Specifically, when the inner pot 30 is supported on the bottom flange 14, the temperature measuring cap abuts against the inner pot, and the spring 53 is in a compressed state. When the inner pot 30 is taken out, the spring is restored to the original state. Because the spring is in a compressed state when the inner pot is placed in the outer pot, the temperature measuring cap 52 always has the tendency of floating upwards, so that the temperature measuring cap can be always tightly attached to the inner pot, and the temperature measurement is reliable.

In this embodiment, the inner pot bottom wall 34 has a protrusion 33, and the protrusion 33 corresponds to the bottom temperature measuring device 50. The bottom temperature measuring device 50 is abutted against the convex part 33 for measuring the temperature, so that dry burning can be detected in advance. Specifically, when the dry-burning condition occurs, the liquid in the pot is gradually reduced, when no liquid exists in the raised part 33, a small amount of liquid still exists in other areas in the pot, because the bottom temperature measuring device 50 abuts against the raised part 33, the temperature can be obviously increased due to no liquid in the raised part 33, the bottom temperature measuring device 50 can timely detect the liquid and perform feedback control on the electromagnetic wire coil to stop heating, and the small amount of liquid still exists in other areas in the pot and cannot be completely burnt, so that the dry-burning loss can be reduced. Specifically, the height of the protruding part is 2-15mm, so that dry burning can be detected in time, and the influence on the heating effect is small.

Example four

In this embodiment, a top temperature measuring device 60 is added on the basis of the first embodiment, and with continued reference to fig. 11, the top temperature measuring device is used for detecting the temperature of the cooking cavity at the top. It can be understood that a main control board is arranged in the pot body and is electrically connected with the electromagnetic wire coil and the top temperature measuring device. The main control board is used for receiving the temperature measuring signals of the top temperature measuring device and controlling the electromagnetic wire coil to heat according to the received temperature measuring signals. In the specific use process, when the pressure in the cooker rises, the temperature also rises to exceed 100 ℃, the bottom flanging deforms and moves downwards when the inner cooker 30 bears the pressure and moves downwards, and in order to avoid destructive deformation of the bottom flanging caused by continuous rising of the pressure, the top temperature measuring device can timely detect the temperature of the cooking cavity and feed the temperature back to the main control board, so that the main control board controls the electromagnetic wire coil to stop timely, and the bottom flanging is prevented from being damaged by continuous rising of the pressure caused by continuous heating.

In this embodiment, the lid 20 is hinged to the body 10, the lid can be turned over relative to the body to open or close the body, the top temperature measuring device 60 and the main control board are electrically connected through a first connecting wire, and the first connecting wire extends from the lid to the body through the hinge. In other embodiments, the top temperature measuring device and the main control board are electrically connected through a wireless device, so that the pot cover 20 can be hinged on the pot body 10, and the pot cover 20 can also be completely separated from the pot body 10. The specific wireless device can be that a first coil is arranged on the pot body, a second coil is correspondingly arranged on the pot cover to realize wireless connection, or a first coupler is arranged on the pot body, and a second coupler is correspondingly arranged on the pot cover to realize electric coupling connection.

In this embodiment, the pot cover includes an inner cover 22, the inner cover 22 and the inner pot 30 are sealed to form a cooking cavity, the top temperature measuring device 60 is a temperature measuring rod, and the temperature measuring rod extends into the cooking cavity. Specifically, a temperature measuring hole is formed in the inner cover, the temperature measuring rod penetrates through the temperature measuring hole, one end of the temperature measuring rod extends into the cooking cavity, and the other end of the temperature measuring rod is located outside the inner cover and electrically connected with the first connecting wire. The temperature measuring rod is arranged on the inner cover and directly extends into the cooking cavity to measure the temperature, the temperature of the cooking cavity can be accurately measured, and the bottom flanging is prevented from being damaged due to the bearing pressure of the inner pot. In other embodiments, the top thermometry device 60 may be located on the upper surface of the inner lid 22 to detect the temperature of the inner lid 22 and indirectly detect the temperature of the cooking cavity.

While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. An electromagnetic heating electric pressure cooker comprises a cooker body and a cooker cover, wherein the cooker body comprises an outer cooker, and an inner cooker is arranged in the outer cooker.

2. The electric pressure cooker according to claim 1, wherein the bottom flanging part area sinks to form a mounting groove, and the electromagnetic wire coil is provided with a mounting protrusion which is arranged in the mounting groove.

3. The electric pressure cooker according to claim 2, wherein the mounting protrusion circumferentially protrudes from the electromagnetic coil.

4. The electric pressure cooker according to claim 2, wherein a plurality of mounting slots are provided and circumferentially distributed on the bottom flange.

5. The electric pressure cooker according to claim 2, wherein the bottom surface of the mounting groove is provided with a screw hole for matching and fixing with the mounting protrusion.

6. The electric pressure cooker according to claim 5, wherein the mounting protrusion is provided with a blind hole with a downward opening, the blind hole is arranged corresponding to the screw hole, and a screw passes through the screw hole and the blind hole to fixedly connect the screw hole and the blind hole.

7. The electric pressure cooker according to claim 1, wherein the inner side of the bottom flange is provided with a folded edge.

8. The electric pressure cooker according to claim 1, wherein the projection of the electromagnetic wire coil in the vertical direction is larger than the bottom through hole.

9. The electric pressure cooker according to claim 1, wherein the upper surface of the electromagnetic wire coil is not higher than the upper surface of the bottom flange.

10. The electric pressure cooker according to claim 1, wherein the lid comprises locking means for engaging the mouth flange of the outer pot.