CN222164901U

CN222164901U - Electromagnetic cooking utensil

Info

Publication number: CN222164901U
Application number: CN202323601027.XU
Authority: CN
Inventors: 朱泽春; 高朝岗
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2023-12-27
Filing date: 2023-12-27
Publication date: 2024-12-13
Anticipated expiration: 2033-12-27

Abstract

The application discloses an electromagnetic cooking utensil, which comprises a base and an upper shell arranged on the base to bear a pot body, wherein an electromagnetic heating component is arranged in the base, a weighing unit is further arranged at the bottom of the base, and the weighing unit is positioned outside a projection area of the electromagnetic heating component on the base. The application can greatly reduce the influence of the weighing unit in the operation process of the electromagnetic heating assembly and avoid high-temperature failure and damage caused by heating the weighing unit by a magnetic field. In addition, compared with the technical scheme that the weighing unit is arranged right below the electromagnetic heating assembly, and the height difference between the weighing unit and the electromagnetic heating assembly is increased so that the weighing unit is not influenced by a magnetic field, the arrangement of the weighing unit in the application can reduce the whole thickness of the electromagnetic cooking appliance to a certain extent, and is beneficial to the light and thin design of the electromagnetic cooking appliance.

Description

Electromagnetic cooking utensil

Technical Field

The application belongs to the technical field of kitchen appliances, and particularly relates to an electromagnetic cooking appliance.

Background

Electromagnetic ovens are often used in actual use to heat food materials for extended periods of time, such as for the cooking of hot pots. In the cooking process, the weight of the food material is changed frequently due to water evaporation, food taking by a user and adding of new food material or soup, so that the power of the induction cooker is required to be continuously adjusted by the user in the process so as to adapt to the change of the food material amount, and the user experience is greatly reduced.

In order to solve the technical problem, in the prior art, a plurality of induction cookers capable of adjusting power according to the weight of food materials are arranged on a bottom plate of the induction cookers, and the evaporation condition and/or the weight condition of a pot body are identified according to the output signals of the weighing sensors, so that the boiling condition of a hot pot and/or the remaining condition of the food materials are obtained, and the heating power is automatically adjusted.

In a specific induction cooker product, it includes the panel and is located the bottom plate of panel below, panel and bottom plate cooperation form the cavity, be equipped with the control unit in the cavity, electromagnetic heating unit and weighing unit, the supporter has between panel and the bottom plate, the supporter supports whole panel on the bottom plate, the upper surface of panel is used for placing heating household utensils or pan, weighing unit locates the bottom plate and is located electromagnetic heating unit under, when the weight of heating household utensils or pan of placing on the panel changes, the panel can produce the tiny displacement of upper and lower direction, this tiny displacement is transmitted to the bottom plate from the supporter, thereby make the pressure of the weighing unit who sets up on the bottom plate produce corresponding change, the pressure signal who weighs the unit and will produce transmits to the control unit, in order to carry out corresponding power adjustment.

According to the electromagnetic induction principle, the current change in the electromagnetic coil can generate a magnetic field in the surrounding space, and a magnetic conductive medium such as ferromagnetism exists in the magnetic field range, so that high-frequency eddy current can be generated in the magnetic conductive medium. The material of the strain beam in the existing weighing unit is usually metal magnetic conduction material, when the weighing unit is arranged below the electromagnetic heating unit and the distance control is improper, the weighing unit is easy to be positioned in the magnetic field range of the electromagnetic heating unit, so that when the electromagnetic heating unit operates, the strain beam in the weighing unit is heated simultaneously, the weighing unit is caused to detect failure, the heating power cannot be automatically adjusted, and therefore automatic control of the cooking process cannot be achieved.

Disclosure of utility model

The application provides an electromagnetic cooking utensil, which aims to solve the technical problem that a magnetic field generated by electrifying an electromagnetic wire coil acts on a weighing unit in the operation process of the electromagnetic cooking utensil, so that the weighing unit is heated and damaged.

The technical scheme adopted by the application is as follows:

The utility model provides an electromagnetic cooking utensil, includes the base and locates the base is in order to bear the upper casing of the pot body, be equipped with electromagnetic heating subassembly in the base, the bottom of base still is equipped with weighing unit, just weighing unit is located electromagnetic heating subassembly is in outside the projection area of base.

The electromagnetic cooking appliance in the application further comprises the following additional technical characteristics:

The electromagnetic heating assembly comprises a wire coil frame, electromagnetic coils wound on the wire coil frame and a plurality of magnetic conducting strips radially distributed on the wire coil frame, and the magnetic conducting strips and the weighing units are arranged in a staggered mode along the circumferential direction of the wire coil frame.

The height difference between the weighing unit and the electromagnetic heating assembly is H, and H is equal to or greater than 10mm.

The base is provided with a mounting position for mounting the weighing unit, the shortest distance between a projection area of the base and a projection area of the electromagnetic heating assembly on the base is L, and L is larger than or equal to 20mm.

The bottom of base is followed the circumference interval of base is equipped with a plurality of weighing unit.

The base is provided with a mounting groove matched with the weighing unit, and the weighing unit is detachably mounted in the mounting groove.

The mounting groove is internally provided with an upper boss and a lower boss, the weighing unit comprises a positioning frame, and the positioning frame is clamped between the upper boss and the lower boss.

The installation groove is internally provided with an introduction inclined plane adjacent to the lower boss, and the positioning frame is installed in the installation groove from bottom to top along the introduction inclined plane.

The weighing unit comprises a pressure sensor, a weighing bracket and a supporting foot pad, wherein the pressure sensor comprises a positioning frame and a strain beam connected with the positioning frame, the strain beam is fixedly connected with the weighing bracket, and the supporting foot pad is arranged at the lower part of the weighing bracket and can deform along with the base to push the weighing bracket upwards.

The strain beam comprises a body part connected with the positioning frame and cantilever beams respectively connected with the body part and positioned on two sides of the body part, and the cantilever beams are fixedly connected with the weighing bracket.

By adopting the technical scheme, the application has the following beneficial effects:

1. The weighing unit is positioned outside the projection area of the electromagnetic heating assembly on the base, so that the influence of the weighing unit in the operation process of the electromagnetic heating assembly can be greatly reduced, and the weighing unit is prevented from being heated by a magnetic field to cause high-temperature failure and damage. In addition, compared with the technical scheme that the weighing unit is arranged right below the electromagnetic heating assembly, and the height difference between the weighing unit and the electromagnetic heating assembly is increased so that the weighing unit is not influenced by a magnetic field, the arrangement of the weighing unit in the application can reduce the whole thickness of the electromagnetic cooking appliance to a certain extent, and is beneficial to the light and thin design of the electromagnetic cooking appliance.

In addition, arrange the weighing unit outside the projection area of electromagnetic heating subassembly at the base, can make the weighing unit be close to the junction position department of base and last casing more to make the weighing unit sense the weight variation of the pot body that bears on last casing more in time, promote the timeliness that detects, and then promote response speed.

2. As a preferred embodiment of the application, the magnetic strips and the weighing units in the electromagnetic heating assembly are arranged in a staggered manner along the circumferential direction of the wire coil frame, so that the influence of a strong magnetic field on one side of the magnetic strips on the weighing units is reduced, and the protection effect of the symmetrical weight units is improved.

3. As a preferred embodiment of the application, the height difference between the weighing unit and the electromagnetic heating assembly is H, H satisfying H.gtoreq.10 mm. By the arrangement, the weighing unit can avoid the region with strong magnetic field of the electromagnetic heating assembly, so that the weighing unit is positioned in the weak magnetic region, the influence of the magnetic field generated by the electromagnetic heating assembly on the weighing unit is greatly reduced, and the service life of the weighing unit is prolonged.

4. As a preferred embodiment of the application, the bottom of the base is provided with a plurality of weighing units at intervals along the circumferential direction of the base, so that on one hand, the condition of inaccurate detection results caused by local stress can be avoided, and on the other hand, the phenomenon that partial weighing units fail and cannot be measured can be avoided.

5. As a preferred embodiment of the application, the base is provided with a mounting groove adapted to the weighing unit, the weighing unit being detachably mounted in the mounting groove. The arrangement of the mounting grooves can realize the sinking arrangement of the weighing units, so that the height difference between the weighing units and the electromagnetic heating assembly can be pulled by the thickness of the base, and the whole light and thin design of the electromagnetic cooking utensil is facilitated. The weighing unit is detachably mounted in the mounting groove, so that the weighing unit can be conveniently detached and replaced, and the repair and maintenance cost is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is an exploded view showing a part of the structure of an electromagnetic cooking appliance according to an embodiment of the present application;

FIG. 2 is a partial top view of a portion of an electromagnetic cooking device according to an embodiment of the present application;

FIG. 3 is an exploded view of a weighing cell according to one embodiment of the application;

Fig. 4 is a sectional view showing a part of the structure of an electromagnetic cooking device according to an embodiment of the present application;

Fig. 5 is an enlarged view of a portion a of fig. 4.

Wherein,

1. The device comprises a base, a connecting column, a mounting groove, an upper boss, a lower boss, a guide-in inclined plane and a connecting column, wherein the connecting column is arranged on the base;

2. the electromagnetic heating assembly, 21, a wire coil rack, 22, an electromagnetic coil, 23, a magnetic conduction strip;

3. The weighing device comprises a weighing unit, 31, a positioning frame, 32, a body part, 33, a cantilever beam, 331, a third positioning hole, 34, a weighing bracket, 341, a fourth positioning hole, 35, a screw, 36, a supporting foot pad, 361, a supporting column, 362, a supporting foot, 37 and a gap.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below. It should be noted that, without conflict, embodiments of the present application and features in each embodiment may be combined with each other.

In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication, directly connected, or indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 and 2, an electromagnetic cooking appliance comprises a base 1 and an upper shell arranged on the base 1 to bear a pot body, wherein an electromagnetic heating assembly 2 is arranged in the base 1, a weighing unit 3 is further arranged at the bottom of the base 1, and the weighing unit 3 is positioned outside a projection area of the electromagnetic heating assembly 2 on the base 1.

The electromagnetic cooking appliances in the present application include, but are not limited to, ordinary induction cookers, IH electric chafing dishes, etc.

In a specific embodiment, the upper shell comprises a cover plate carried on the base 1 and a flanging part fixedly connected with the cover plate and extending upwards, and the pot body placed on the upper shell is limited through the flanging part, so that stable support of the pot body in the cooking process is ensured, and the shift of the pot body is avoided. In another specific embodiment, the upper housing is shaped like a pot of an electric rice cooker.

The base 1 is internally provided with the control unit, the weighing unit 3 is electrically connected with the control unit, and the control unit can adjust the cooking power, the heating time and the like of the electromagnetic cooking appliance according to the detection signals transmitted by the weighing unit 3, so that the automatic adjustment of the cooking process is realized, the times of manually participating in the adjustment of the cooking power and the heating time in the cooking process are reduced or even saved, and the user experience is improved.

The weighing unit 3 is positioned outside the projection area of the electromagnetic heating assembly 2 on the base 1, so that the influence of the weighing unit 3 in the operation process of the electromagnetic heating assembly 2 can be greatly reduced, and the weighing unit 3 is prevented from being heated by a magnetic field to cause high-temperature failure and damage. Moreover, compared with the technical scheme that the weighing unit 3 is arranged right below the electromagnetic heating assembly 2, and the height difference between the weighing unit 3 and the electromagnetic heating assembly 2 is increased to prevent the weighing unit 3 from being influenced by a magnetic field, the arrangement of the weighing unit 3 in the application can reduce the whole thickness of the electromagnetic cooking appliance to a certain extent, and is beneficial to the light and thin design of the electromagnetic cooking appliance.

In addition, arrange weighing unit 3 outside the projection area of electromagnetic heating subassembly 2 in base 1, can make weighing unit 3 be close to the base 1 more with last hookup location department of casing to make weighing unit 3 sense the weight variation of the pot body that bears on last casing more in time, promote the timeliness of detection, and then promote response speed.

As shown in fig. 1 and 2, the electromagnetic heating assembly 2 of the present application includes a wire coil 21 and an electromagnetic coil 22 wound around the wire coil 21. As a preferred embodiment of the application, the electromagnetic heating assembly 2 further comprises a plurality of magnetic strips 23 radially distributed on the wire coil rack 21, and the magnetic strips 23 and the weighing units 3 are arranged in a staggered manner along the circumferential direction of the wire coil rack 21, so that the influence of a strong magnetic field on one side of the magnetic strips 23 on the weighing units 3 is reduced, and the protection effect of the weighing units 3 is improved.

Further, as shown in fig. 2, the extension line of the magnetic conductive strip 23 along the radial direction of the coil holder 21 does not pass through the weighing unit 3, so as to further reduce the influence of the strong magnetic field of the magnetic conductive strip 23 on the weighing unit 3.

The height difference between the weighing unit 3 and the electromagnetic heating assembly 2 is H. The height H is the difference between the height of the weighing unit 3 at the bottom of the base 1 and the height of the electromagnetic heating assembly 2 at the position within the base 1. In a preferred embodiment of the present application, H satisfies H.gtoreq.10 mm. By the arrangement, the weighing unit 3 can avoid the area with strong magnetic field of the electromagnetic heating assembly 2 along the up-down direction, and is positioned in the weak magnetic area along the up-down direction, so that the influence of the magnetic field generated by the electromagnetic heating assembly 2 on the weighing unit 3 is greatly reduced, and the service life of the weighing unit 3 is prolonged.

The base 1 is provided with a mounting position for mounting the weighing unit 3, and the shortest distance between the projection area of the base 1 and the projection area of the electromagnetic heating assembly 2 on the base 1 is L. In a preferred embodiment of the present application, L satisfies L.gtoreq.20 mm. By the arrangement, the weighing unit 3 can avoid the area with strong magnetic field of the electromagnetic heating assembly 2 along the horizontal direction and is positioned in the weak magnetic area along the horizontal direction, so that the influence of the magnetic field generated in the operation process of the electromagnetic heating assembly 2 on the weighing unit 3 can be reduced, and the weighing unit 3 is not damaged or damaged at high temperature due to electromagnetic heating.

As a preferred embodiment of the present application, as shown in fig. 1, the bottom of the base 1 is provided with a plurality of weighing cells 3 at intervals along the circumferential direction of the base 1. On one hand, the condition of inaccurate detection results caused by local stress can be avoided, and on the other hand, the phenomenon that the partial weighing units 3 fail and cannot be measured can be avoided.

Taking the cross section of the base 1 as an example, preferably, the bottom of the base 1 is provided with a weighing unit 3 at four corners or near the four corners respectively, and the base 1 is connected with the upper shell through connecting posts 11 arranged at the four corners or adjacent to the four corners, and the weighing unit 3 is close to the connecting posts 11, so that the weighing unit 3 can timely sense the force transmission of the upper shell to the base 1, thereby improving the response speed.

The specific arrangement mode of the weighing unit 3 in the present application may adopt any one of the following embodiments:

In the first embodiment, the base 1 is provided with a mounting position for mounting the weighing unit 3, and the mounting position extends and protrudes toward the inside of the base 1 so that the weighing unit 3 is arranged in a protruding manner. In order to rationalize the height distance between the weighing unit 3 and the electromagnetic heating assembly 2, it is necessary to further raise the installation position of the electromagnetic heating assembly 2.

In the second embodiment, as shown in fig. 1, 4 and 5, the base 1 is provided with a mounting groove 12 adapted to the weighing unit 3, and the weighing unit 3 is detachably mounted in the mounting groove 12. The arrangement of the mounting groove 12 can realize the sinking arrangement of the weighing unit 3, so that the height difference between the weighing unit 3 and the electromagnetic heating assembly 2 can be pulled by the thickness of the base 1, and the whole light and thin design of the electromagnetic cooking utensil is facilitated. The weighing unit 3 is detachably mounted in the mounting groove 12, so that the weighing unit 3 can be conveniently detached and replaced, and the repair and maintenance cost is reduced.

In the second embodiment, any of the following examples can be adopted for the connection between the weighing unit 3 and the base 1:

Embodiment 1 the weighing unit 3 comprises a positioning frame 31, wherein a positioning convex rib is arranged in the mounting groove 12 in a protruding manner, a first positioning hole is formed in the positioning convex rib, a second positioning hole is formed in the positioning frame 31, and the positioning frame 31 is detachably connected with the positioning convex rib through a fastening piece (such as a screw) penetrating through the first positioning hole and the second positioning hole.

Embodiment 2 the weighing unit 3 comprises a positioning frame 31, wherein one of the positioning frame 31 and the inner wall of the mounting groove 12 is provided with a clamping tongue, the other one of the positioning frame 31 and the inner wall of the mounting groove is provided with a buckling position matched with the clamping tongue, and the positioning frame 31 is detachably connected with the base 1 through the clamping tongue and the buckling position.

Embodiment 3 As shown in figures 4 and 5, an upper boss 13 and a lower boss 14 are arranged in the mounting groove 12, the weighing unit 3 comprises a positioning frame 31, and the positioning frame 31 is clamped between the upper boss 13 and the lower boss 14. When the weight of the pot body carried on the upper shell changes, the upper shell generates tiny displacement in the up-down direction, and the tiny displacement is transmitted to the base 1 through the connecting column 11, so that the tiny displacement is transmitted to the upper boss 13 and the lower boss 14, so that the positioning frame 31 clamped between the upper boss 13 and the lower boss 14 moves downwards relative to other structures of the weighing unit 3 under the action of gravity, the pressure of the weighing unit 3 generates corresponding changes, and the weighing unit 3 transmits the generated detection signals to the control unit so that the control unit can adjust corresponding heating power and/or heating time.

As a preferred example of embodiment 2, as shown in fig. 5, an introduction slope 141 adjacent to the lower boss 14 is provided in the installation groove 12, and the positioning frame 31 is fitted into the installation groove 12 from bottom to top along the introduction slope 141. The guiding inclined plane 141 can guide the loading process of the positioning frame 31, so that the positioning frame 31 can be conveniently loaded, and the assembly efficiency is improved.

As shown in fig. 3 to 5, the weighing unit 3 includes a pressure sensor, a weighing bracket 34 and a supporting foot pad 36, the pressure sensor includes a positioning frame 31 and a strain beam connected to the positioning frame 31, the strain beam is fixedly connected to the weighing bracket 34, and the supporting foot pad 36 is disposed at a lower portion of the weighing bracket 34 and can deform with the base 1 to push the weighing bracket 34 upwards.

In a specific example, as shown in fig. 3 to 5, the strain beam is located inside the positioning frame 31, the weighing bracket 34 is located below the pressure sensor, the weighing sensor is provided with a mounting hole for mounting the support foot pad 36, the support foot pad 36 is provided with a support column 361 in interference fit with the mounting hole and a support leg 362 connected with the support column 361, and the arrangement can compact the structure of the weighing unit 3, so that the installation space occupied by the weighing unit 3 is smaller, and the weighing unit 3 and the electromagnetic heating assembly 2 can be reasonably arranged in the limited space of the base 1.

Preferably, as shown in fig. 5, the mounting groove 12 is a through groove, i.e., the mounting groove 12 penetrates the base 1 so that the leg 362 of the support foot pad 36 can contact a table for supporting an electromagnetic cooking appliance. The support foot pad 36 is a structure made of an elastic material such as silicone rubber or rubber. When the weight of the pan body loaded on the upper shell changes, the upper shell generates tiny displacement in the up-down direction, the tiny displacement is transmitted to the base 1 through the connecting column 11 and is transmitted to the positioning frame 31 and the supporting foot pad 36 through the base 1, the positioning frame 31 moves downwards relative to the strain beam, the supporting foot pad 36 pushes the weighing bracket 34 upwards by the reaction force of the table top, so that the weighing bracket 34 moves upwards relative to the strain beam, the strain beam deforms under the two-way clamping, the resistance value of the strain beam changes, and the corresponding strain value can be converted through the measurement of the change of the resistance value and is transmitted to the control unit.

The strain beam comprises a body part 32 connected with the positioning frame 31 and a cantilever beam 33 fixedly connected with the body part 32, wherein the cantilever beam 33 is fixedly connected with the weighing bracket 34, and a gap 37 is reserved between the cantilever beam 33 and the positioning frame 31. Preferably, the cantilever beam 33 is provided with a third positioning hole 331, the weighing bracket 34 is provided with a fourth positioning hole 341, and the cantilever beam 33 is detachably connected with the weighing bracket 34 through a fastener (such as a screw 35) penetrating through the third positioning hole 331 and the fourth positioning hole 341.

In a preferred embodiment, as shown in fig. 3, there are two cantilever beams 33, one on each side of the body portion 32. By providing two cantilever beams 33, the overall stress can be more uniform, and damage due to stress concentration can be avoided.

Further, as shown in fig. 3, the body portion 32 includes a transverse extension and a longitudinal extension, the two cantilever beams 33 are respectively connected to the transverse extension, and the two cantilever beams 33 are arranged in parallel, and the longitudinal extension is connected to the positioning frame 31, so that the strain beam is shaped like a Chinese character 'shan'. Of course, the structural shape of the strain beam in the present application is not limited thereto, and may be V-shaped, U-shaped, or the like.

The application can be realized by adopting or referring to the prior art at the places which are not described in the application.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims

1. The utility model provides an electromagnetic cooking utensil, includes the base and locates the base is in order to bear the upper casing of the pot body, be equipped with electromagnetic heating subassembly in the base, its characterized in that, the bottom of base still is equipped with the weighing cell, just the weighing cell is located electromagnetic heating subassembly is in the projection area of base is outside.

2. An electromagnetic cooking device according to claim 1, wherein,

3. An electromagnetic cooking device according to claim 1, wherein,

4. An electromagnetic cooking device according to claim 1, wherein,

5. An electromagnetic cooking device according to claim 1, wherein,

6. An electromagnetic cooking device according to any one of claims 1 to 5, wherein,

7. An electromagnetic cooking device as claimed in claim 6, wherein,

8. An electromagnetic cooking device as claimed in claim 7, wherein,

9. An electromagnetic cooking device according to any one of claims 1 to 5, wherein,

10. An electromagnetic cooking device according to claim 9, wherein,