CN211582711U

CN211582711U - Electric heating lunch box base assembly and electric heating lunch box using same

Info

Publication number: CN211582711U
Application number: CN201921850390.6U
Authority: CN
Inventors: 张谷乃
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-09-29
Anticipated expiration: 2029-10-30

Abstract

The utility model relates to the technical field of electrical equipment for kitchen, especially relate to an electric heat lunch-box base subassembly and use its electric heat lunch-box. An electric heating lunch box base assembly comprises a base, a bottom lining and a positioning structure, wherein an accommodating cavity with an opening is formed in the base, the bottom lining is accommodated in the accommodating cavity, the positioning structure is arranged at the bottom of the bottom lining, and the bottom lining and the base are fixedly connected through the positioning structure. The electric heating lunch box comprises a base assembly and a cover body, wherein the cover body is arranged on the base assembly in a covering mode, and the base assembly adopts the base assembly. The utility model has the advantages that: the requirement on the bottom lining processing technology is low, the cost is low, the assembly is simple and convenient, the efficiency is higher, and the method has wide application prospect.

Description

Electric heating lunch box base assembly and electric heating lunch box using same

Technical Field

The utility model relates to the technical field of electrical equipment for kitchen, especially relate to an electric heat lunch-box base subassembly and use its electric heat lunch-box.

Background

The electric heating lunch box is a small household appliance which can generate high-temperature steam in the lunch box after the heating body is electrified so as to achieve the purpose of heating/heat preservation. The electric heating lunch box comprises a base assembly, a heating assembly, a cover body and other components, wherein the heating assembly is arranged on the base assembly, and the cover body is arranged on the base assembly and forms a heating/heat-preserving space with the base assembly. The base assembly generally includes a base and a plurality of components that fit together between the base and the plurality of components to form the base assembly.

The existing base is inconvenient to assemble with each component and has low efficiency; meanwhile, part of the components are positioned outside the base, the processing technology requirement for the exposed components is high, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a low-cost electric heating lunch box base assembly convenient to assemble and an electric heating lunch box using the same.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

an electric heating lunch box base assembly comprises a base, a bottom lining and a positioning structure, wherein an accommodating cavity with an opening is formed in the base, the bottom lining is accommodated in the accommodating cavity, the positioning structure is arranged at the bottom of the bottom lining, and the bottom lining and the base are fixedly connected through the positioning structure.

In one embodiment, the positioning structure includes a positioning column disposed at the bottom of the bottom liner, a connecting hole communicated with the accommodating cavity is disposed at the bottom of the base, and the positioning column is fixedly connected to the connecting hole through a connecting member.

In one embodiment, the positioning column is provided with support ribs, and the support ribs are distributed on the periphery of the positioning column.

It can be understood that the arrangement of the supporting ribs can prevent the positioning column from being broken and prevent the column from being deformed, and the overall structural strength of the positioning column is improved.

In one embodiment, the bottom lining, the positioning column and the supporting rib are integrally formed into a structure.

It can be understood that the integral forming arrangement improves the overall structural strength of the positioning column.

In one embodiment, the opening of the receiving cavity is formed with a step, the bottom lining is provided with a lap joint part, the bottom lining is received in the receiving cavity, and the lap joint part is lapped on the step.

In one embodiment, the thickness of the lap joint is less than the height of the step.

It is understood that the thickness of the lap joint portion is set to be smaller than the height of the step, so that when the lap joint portion is lapped on the step, the lap joint portion can be also shielded; meanwhile, the thickness of the overlapping part is smaller than the height of the step, so that when other elements abut against the overlapping part, the step can limit the other elements and prevent steam in the bottom lining from flowing out to the outside.

In one embodiment, the step is provided with an installation groove, the overlapping part is provided with a clamping part, and the clamping part is clamped in the installation groove.

In one embodiment, the lap joint is hermetically connected with the step.

It can be understood that the sealing connection between the lap joint part and the step can prevent steam and/or external liquid in the bottom lining from entering the accommodating cavity from a gap between the lap joint part and the step finger to damage the electric element in the accommodating cavity.

In one embodiment, the outer side wall of the bottom lining is spaced from the cavity wall of the receiving cavity.

It can be understood that the outer side wall of the bottom lining and the wall of the receiving cavity are arranged at intervals, that is, a gap is formed between the bottom lining and the receiving cavity, so that heat on the bottom lining is prevented or prevented from being transferred to the base, and further, the heat preservation effect of the base assembly is improved.

In one embodiment, the bottom lining is provided with an open accommodating cavity, and the bottom of the accommodating cavity is provided with a plurality of positioning parts for positioning external appliances.

It can be understood that the arrangement of the positioning part can position the external appliance contained in the containing cavity, so as to prevent the external appliance from toppling; simultaneously, under the effect of location portion, can be so that outside utensil has certain clearance with the bottom in holding chamber to avoid in the heating process, boiling water arouses outside utensil vibrations etc..

The utility model also provides the following technical scheme:

the electric heating lunch box comprises a base assembly and a cover body, wherein the cover body is arranged on the base assembly in a covering mode, and the base assembly adopts the base assembly.

In one embodiment, the steam box further comprises a middle layer steam grid, the middle layer steam grid is installed on the bottom lining, and the cover body is covered on the middle layer steam grid.

Compared with the prior art, the bottom lining of the electric heating lunch box base assembly is accommodated in the accommodating cavity, namely the bottom lining is not exposed out of the accommodating cavity, so that a user can avoid being cut by burrs or fins on the bottom lining in the using process, in other words, the bottom lining can be applied without finish machining, the processing technology requirement of the bottom lining is lower, and the processing cost is saved; secondly, through setting up location structure in order to fix a position the end lining of accomodating in accommodate the intracavity, not only make the end lining installation more stable, and assemble simple, convenient, efficiency also is higher.

Drawings

FIG. 1 is a cross-sectional view of an electric heating lunch box provided by the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is an exploded view of the electric heating lunch box according to the present invention;

FIG. 4 is an exploded view of another view angle of the electric heating lunch box provided by the present invention;

fig. 5 is a schematic structural view of a bottom lining provided by the present invention;

fig. 6 is a schematic view of another perspective structure of the bottom lining according to the present invention.

In the figure, an electric heating lunch box 200, a base assembly 100, a base 10, a containing cavity 11, a connecting column 111, a step 12, a mounting groove 121, a sealing element 122, a bottom lining 20, a bridging part 21, a clamping part 211, a containing cavity 22, a positioning part 23, a positioning groove 23a, a protrusion 23b, a positioning structure 30, a positioning column 31, a threaded hole 311, a cover 210, a cavity 201, a middle layer steaming lattice 220, a heating assembly 230 and a locking structure 240.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present invention provides an electric heating lunch box 200, wherein the electric heating lunch box 200 is used for heating food or keeping warm.

Specifically, the electric heating lunch box 200 includes a base assembly 100 and a cover 210, the cover 210 is disposed on the base assembly 100 and encloses a closed cavity 201 with the base assembly 100, and food is accommodated in the cavity 201 to realize heat preservation of the food. In this embodiment, the food may be rice, dishes, soup, or the like.

Further, the electric heating lunch box 100 further comprises a middle layer steaming lattice 220, the middle layer steaming lattice 220 is installed on the base component 10, and the cover body 210 is covered on the middle layer steaming lattice 220. The middle layer steaming lattice 220 and the base component 10 enclose a cavity 201, a cavity 201 is also enclosed between the cover body 210 and the middle layer steaming lattice 220, and both cavities 201 can be used for placing food. It can be understood that the middle steaming compartment 220 can be used for placing rice, dishes or soup independently, which not only increases the usage space of the electric heating lunch box 200, but also can be used for placing dishes, rice and the like independently, thereby preventing the dishes and rice from mixing with each other.

Of course, the electric lunch box 200 further includes a heating assembly 230 and other components besides the base assembly 100, the cover 210 and the middle layer steaming compartment 220, and the heating assembly 230 is disposed on the base assembly 100 and is used for providing a heat source for heat preservation/heating of food.

Further, the middle layer steaming lattice 220 and the upper locking structure 240 are provided, and when the cover body 210 is covered on the middle layer steaming lattice 220, the locking structure fastens the cover body 210. The locking structure is the prior art and is not described herein again.

As shown in fig. 3 and 4, the base assembly 100 includes a base 10, a bottom liner 20 and a positioning structure 30, wherein the base 10 has a receiving cavity 11 disposed at an opening, the bottom liner 20 is received in the receiving cavity 11, the positioning structure 30 is disposed at a bottom of the bottom liner 20, and the bottom liner 20 and the base 10 are fixedly connected by the positioning structure 30.

It can be understood that the bottom liner 20 is accommodated in the accommodating cavity 11, that is, the bottom liner 20 is not exposed to the accommodating cavity 11, so that a user can avoid cutting by burrs or flashes on the bottom liner 20 during use, in other words, the bottom liner 20 can be applied without finish machining, so that the requirement of the processing technology of the bottom liner 20 is low, and the processing cost is saved; secondly, by providing the positioning structure 30 to position the bottom lining 20 received in the receiving cavity 11, the assembly of the bottom lining 20 is simple and convenient, and the assembly efficiency is high.

Preferably, the bottom lining 20 has a height smaller than the depth of the receiving cavity 11, and the cover 210 or the middle layer steam lattice 220 is overlapped on the bottom lining 20, so as to mount the middle layer steam lattice 220 on the base assembly 10.

It will be appreciated that the bottom liner 20 has a height less than the depth of the receiving cavity 11, i.e. the bottom liner 20 is completely received within the receiving cavity 11.

The base 10 may be circular, oval or square. Of course, the base 10 may have other shapes. The base 10 is injection molded or cast molded.

The cross section of the receiving cavity 11 may be circular or square. In this embodiment, the cross section of the receiving cavity 11 is circular. The heating unit 230 is installed at the bottom of the receiving cavity 11 for heating the bottom substrate 20.

A step 12 is formed at the opening of the receiving cavity 11, the bottom liner 20 has a lap portion 21, the bottom liner 20 is received in the receiving cavity 11, and the lap portion 21 is lapped on the step 12. Thus, the installation of the bottom liner 20 is achieved.

Further, the height of the step 12 is greater than the thickness of the overlapping portion 21. It will be appreciated that when the lap portion 21 is lapped on the step 12, the lap portion 21 can be completely masked since the height of the step 12 is greater than the thickness of the lap portion 21. Meanwhile, the height of the step 12 is greater than the thickness of the overlapping portion 21, so that when the middle layer steam grid 220 overlaps the step 12, the step 12 can limit the position of the cover body 210 or the middle layer steam grid 220 and prevent the steam in the bottom lining 20 from flowing out to the outside.

Preferably, the thickness of the overlapping part 21 may be set to 3mm to 15mm, and the width thereof may be set to 1.5mm to 4 mm. The height of the step 12 may be 3mm to 5mm higher than the thickness of the lap portion 21.

In one embodiment, as shown in fig. 2, the lap joint 21 is sealingly connected to the step 12. It will be appreciated that the sealing connection between the overlapping portion 21 and the step 12 prevents vapor and/or external liquid in the bottom liner 20 from entering the receiving cavity 11 from the gap between the overlapping portion 21 and the step 12 to damage electrical components such as the heating element 40 in the receiving cavity 11.

Preferably, along the circumferential direction of the receiving cavity 11, a mounting groove 121 is formed on the step 12, the overlapping portion 21 is provided with a clamping portion 211, and the clamping portion 211 is clamped in the mounting groove 121, so that the bottom lining 20 is mounted.

Further, a sealing member 122 is installed in the installation groove 121, and the overlapping portion 21 abuts against the sealing member 122, so that the overlapping portion 21 is hermetically connected with the step 12. Of course, in another embodiment, the mounting groove 121 may also be disposed on the overlapping portion 21, the overlapping portion 21 overlaps the step 12, the sealing member 122 in the mounting groove 121 abuts against the step 12, and similarly, the sealing connection between the overlapping portion 21 and the step 12 may also be achieved.

More preferably, the depth of the mounting groove 121 may be set to be between 3mm and 20mm, and the width may be set to be between 2mm and 5 mm.

The bottom lining 20 is circular or square. The shape of the bottom liner 20 matches the shape of the receiving cavity 11 so that the bottom liner 20 can be received in the receiving cavity 11. Of course, the shape of the bottom liner 20 may not match the shape of the receiving cavity 11 when the size of the receiving cavity 11 is sufficient.

In one embodiment, as shown in fig. 1, when the bottom liner 20 is received in the receiving cavity 11, an outer side wall of the bottom liner 20 is spaced apart from an inner side wall of the receiving cavity 11. It will be appreciated that the outer side wall of the bottom liner 20 is spaced from the inner side wall of the receiving cavity 11, i.e. there is a gap between the bottom liner 20 and the receiving cavity 11, so as to prevent or inhibit heat from the bottom liner 20 from being transferred to the base 10, thereby improving the thermal insulation effect of the base 10 assembly.

Further, the bottom liner 20 is provided with an open accommodating cavity 22 for accommodating water, and the heating element 40 heats the bottom liner 20 and makes the water in the accommodating cavity 22 boil to generate steam, so as to heat or preserve heat of the food.

Preferably, as shown in fig. 5, the bottom (bottom wall) of the receiving cavity 22 is provided with a plurality of positioning parts 23, the overlapping part 21 is formed at one end of the outer side wall of the bottom liner 20 far away from the bottom, and the positioning parts 23 are used for positioning external appliances. Here, the external appliance may be a bowl, a plate, or the like. It can be understood that the positioning portion 23 can position the external device received in the receiving cavity 22 to prevent the external device from falling; meanwhile, under the action of the positioning part 23, a certain gap is formed between the external appliance and the bottom of the accommodating cavity 22, so that the external appliance is prevented from vibrating due to boiling water in the heating process.

Further, the positioning portion 23 may position a groove and/or a protrusion.

In the present embodiment, the positioning portion 23 is combined by the positioning groove 23a and the projection 23 b. The positioning groove 23a is located in the middle region of the bottom of the accommodating cavity 22, the number of the protrusions 23b is multiple, and the multiple protrusions 23b are arranged in the axial direction of the positioning groove 23a in an array manner.

Preferably, the number of the protrusions 23b is 4. Of course, in other embodiments, the number of the protrusions 23b may also be varied from 3 to 5, and the actual number may be set according to the requirement.

As shown in fig. 1, 4 and 6, the positioning structure 30 includes a positioning post 31 disposed at the bottom of the bottom liner 20, a connecting hole (not shown) communicating with the receiving cavity 11 is disposed at the bottom of the base 10, and the positioning post 31 is fixedly connected to the connecting hole through a connecting member (not shown).

Preferably, the connecting piece can be a screw, a bolt or other connecting piece with threads, one end of the connecting piece is inserted into the connecting hole and is in threaded connection with the positioning column 31, and one end of the connecting piece is inserted into the connecting hole and is in threaded connection with the positioning column 31, so as to realize the positioning and installation of the bottom liner 20.

It will be appreciated that the positioning structure 30, in addition to providing the assembly between the bottom lining 20 and the base 10, can also fix the bottom lining 20 to avoid problems such as looseness of the bottom lining 20.

Preferably, the connecting column 111 is arranged at a position corresponding to a connecting hole at the bottom of the accommodating cavity 11, the connecting hole penetrates through the connecting column 111, and a threaded hole 311 is formed in the positioning column 31. During installation, the part of the positioning column 31 is correspondingly inserted into the connecting hole, and then one end of the connecting piece is inserted into the connecting hole and is in threaded connection with the threaded hole 311, so as to realize positioning and installation of the bottom lining 20.

Furthermore, the positioning column 31 has a supporting rib 312, and the supporting rib 312 is located on the peripheral side of the positioning column 31 for preventing the positioning column from breaking and preventing the column from deforming, i.e. improving the overall structural strength of the positioning column 31.

Optionally, the number of the supporting ribs 312 is multiple, and the supporting ribs 312 are disposed at intervals along the circumferential side of the positioning column 31.

In this embodiment, the number of the support ribs 312 is 2. Of course, in other embodiments, the number of the support ribs 312 may also be 3 or 4.

Preferably, the bottom lining 20, the positioning posts 31 and the supporting ribs 312 are integrally formed to improve the overall structural strength of the bottom lining 20, the positioning posts 31 and the supporting ribs 312.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The electric heating lunch box base assembly is characterized by comprising a base (10), a bottom lining (20) and a positioning structure (30), wherein an accommodating cavity (11) with an opening is formed in the base (10), the bottom lining (20) is accommodated in the accommodating cavity (11), the positioning structure (30) is arranged at the bottom of the bottom lining (20), and the bottom lining (20) is fixedly connected with the base (10) through the positioning structure (30).

2. The electric heating lunch box base assembly as claimed in claim 1, wherein the positioning structure (30) comprises a positioning column (31) arranged at the bottom of the bottom liner (20), the bottom of the base (10) is provided with a connecting hole communicated with the accommodating cavity (11), and the positioning column (31) is fixedly connected with the connecting hole through a connecting piece.

3. The electric heating lunch box base assembly as claimed in claim 2, wherein the positioning column (31) is provided with support ribs (312), and the support ribs (312) are distributed on the periphery of the positioning column (31).

4. An electric heating lunch box base assembly as claimed in claim 3, characterised in that the bottom lining (20), the positioning posts (31) and the support ribs (312) are of an integral structure.

5. An electrically heated lunch box base assembly as claimed in claim 1, characterised in that a step (12) is formed at the opening of the housing chamber (11), in that the bottom lining (20) has a lap portion (21), in that the bottom lining (20) is housed in the housing chamber (11) and in that the lap portion (21) laps over the step (12).

6. The electric heating lunch box base assembly as claimed in claim 5, wherein the step (12) is provided with a mounting groove (121), the overlapping part (21) is provided with a clamping part (211), and the clamping part (211) is clamped in the mounting groove (121).

7. An electric heating lunch box base assembly as claimed in claim 6, wherein the step (12) is provided with a mounting groove (121), a sealing member (122) is mounted in the mounting groove (121), and the lap joint part (21) abuts against the sealing member (122).

8. An electric heating lunch box base assembly as claimed in claim 2, wherein the bottom lining (20) is provided with an open accommodating cavity (22), the bottom of the accommodating cavity (22) is provided with a plurality of positioning parts (23), and the positioning parts (23) are used for positioning external appliances.

9. An electric heating lunch box comprising a base assembly (100) and a cover body (210), wherein the cover body (210) is arranged on the base assembly (100), characterized in that the base assembly (100) adopts the base assembly according to any one of claims 1-8.

10. The electric-heating lunch box according to claim 9, further comprising a middle layer steam lattice (220), wherein the middle layer steam lattice (220) is mounted on the bottom lining (20), and the cover body (210) is covered on the middle layer steam lattice (220).