Electric heating vacuum cup processing technology

Abstract

The invention relates to the technical field of vacuum cups, in particular to an electric heating vacuum cup processing technology which comprises an outer protection part and an inner bearing part and comprises the following steps that 1, the outer protection part is prepared; 2, preparing an inner bearing part; and 3, the outer protection piece and the inner bearing piece are fixed together. The inner container and the heating plate of the inner bearing part are independently manufactured, and when the outer protection part and the inner bearing part are combined, corresponding welding modes are adopted according to different opening conditions, so that unnecessary welding operation is avoided, and the cost can be effectively controlled. In addition, whether the cladding ring which is possibly used subsequently is welded or not is determined according to actual requirements, so that the waste of materials is avoided, and the production cost is further reduced; the inner bearing piece is placed in the outer protection piece and then is subjected to overall vacuumizing and welding, and the problem of liquid residues at corners of the inner surface of the welding part of the bottom of the inner container can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of thermos cups, in particular to a processing technology for an electrically heated vacuum thermos cup. Background Art

[0002] In the production process of electric heating vacuum insulation cups (pots), there are many problems with traditional processes. There are many welding parts when the electric cup is evacuated. For each additional welding process, the defect rate will increase by more than 2%. In addition, the cost of the heating plate is relatively high. Although the existing process of evacuating the vacuum first and then welding the heating plate can reduce costs, there is a serious residue problem. For scenes such as soaking milk bottles that require extremely high cleanliness, the market acceptance is extremely low;

[0003] At present, the conventional inner buckle structure of the rear-welded heating plate will have liquid residue in the corners of the inner surface of the inner tank bottom welding part, which cannot meet the user's demand for product cleanliness. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a process for processing an electrically heated vacuum insulation cup.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: a process for processing an electrically heated vacuum insulated cup, comprising an outer protective member and an inner bearing member, wherein the inner bearing member is arranged inside the outer protective member, and comprising the following steps:

[0008] Step 1, preparing an outer protective member, the outer protective member comprises an outer shell and an outer liner, the outer shell is sleeved on the outer side of the outer liner, the outer shell is welded to the upper and lower edges of the outer liner and vacuumized to form the outer protective member;

[0009] Step 2, preparing an inner carrier, wherein the inner carrier comprises an inner pot and a heating plate, wherein the heating plate is arranged below the inner pot;

[0010] Step 3: Determine whether the upper opening of the outer protective member is larger than the maximum outer diameter of the inner bearing member. If so, adopt large-opening welding; if so, adopt small-opening welding to fix the outer protective member and the inner bearing member together.

[0011] Preferably, step 3 includes the following detailed steps:

[0012] Step a1, if the upper opening of the outer protective member is larger than the maximum outer diameter of the inner carrier, the inner carrier is placed into the outer container from top to bottom, and then vacuumed from top to bottom, and the upper port of the inner container is welded to the outer protective member;

[0013] Step a2: If the upper opening of the outer protective member is smaller than the maximum outer diameter of the inner carrier, insert the inner carrier into the outer liner from bottom to top, then evacuate from bottom to top, and weld the upper port of the inner liner to the outer protective member.

[0014] Preferably, in step a2, if it is necessary to cover the inner bearing member with the lower portion of the outer protective member, a covering ring is welded to the lower portion of the outer protective member, and the outer diameter of the lower opening of the covering ring is smaller than the maximum outer diameter of the bearing member.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a process for processing an electrically heated vacuum flask, which has the following beneficial effects:

[0017] The electric heating vacuum flask processing technology prepares the inner liner and the heating plate of the inner carrier separately. When the outer protective part is combined with the inner carrier, the corresponding welding method is adopted according to different opening conditions, avoiding unnecessary welding operations and effectively controlling costs. Moreover, for the covering ring that may be used later, whether to weld it is also determined according to actual needs, avoiding material waste and further reducing production costs.

[0018] By placing the inner bearing part into the outer protective part and then performing overall vacuuming and welding, the problem of liquid residue in the inner surface corners of the inner liner bottom welding part can be effectively avoided, meeting the use scenarios with extremely high cleanliness requirements such as soaking milk bottles, and improving the market acceptance of the product;

[0019] According to the size relationship between the upper opening of the outer protective part and the lower part of the inner bearing part, the outer protective part and the inner bearing part are fixed together by adopting large-opening welding or small-opening welding. This flexible welding method can adapt to outer protective parts and inner bearing parts of different specifications, improve the versatility and applicability of the process, and meet the production needs of diversified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional schematic diagram of a first structural embodiment of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of an outer protective member assembly according to a first structural embodiment of the present invention;

[0022] Figure 3 The structure of the present invention Figure 2 A partial enlarged schematic diagram in the middle;

[0023] Figure 4 The structure of the present invention Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 5 The structure of the present invention Figure 1A partial enlarged schematic diagram of point C in the middle;

[0025] Figure 6 This is a schematic cross-sectional view of the assembly of the second structural embodiment of the present invention;

[0026] Figure 7 This is a schematic cross-sectional view of the assembly of the third structural embodiment of the present invention;

[0027] Figure 8 It is a schematic cross-sectional diagram of the assembly of the outer protection member when the opening on the outer protection member of the structure of the present invention is small;

[0028] Fig. 9 The structure of the present invention Figure 8 The partial enlarged schematic diagram of point D in the middle;

[0029] Fig.10 The structure of the present invention Figure 8 The local enlarged schematic diagram of point E in the middle;

[0030] Fig.11 The structure of the present invention Figure 7 The partial enlarged schematic diagram of F in the middle;

[0031] Fig.12 The structure of the present invention Figure 7 A partial enlarged schematic diagram of point G in the middle.

[0032] In the figure: 1. outer shell; 2. outer liner; 3. inner liner; 4. heating plate; 5. covering ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 12 A process for manufacturing an electrically heated vacuum insulated cup comprises an outer protective member and an inner bearing member, wherein the inner bearing member is arranged inside the outer protective member, and comprises the following steps:

[0035] Step 1, preparing an outer protective member, the outer protective member comprises an outer shell and an outer liner, the outer shell is sleeved on the outer side of the outer liner, the outer shell is welded to the upper and lower edges of the outer liner and vacuumized to form the outer protective member;

[0036] Put the outer shell on the outside of the outer liner, and then weld the upper and lower edges. The purpose of welding is to make the outer shell and the outer liner form a tight overall structure to prepare for the subsequent vacuuming. Vacuuming is to use vacuum equipment to extract the air between the outer liner and the outer shell to form a vacuum environment, reduce heat loss through air conduction, and thus improve the thermal insulation performance of the thermos cup. This step reduces the number of welding parts in the traditional process when vacuuming the electric cup, and reduces the defective rate caused by welding;

[0037] Step 2, preparing an inner carrier, wherein the inner carrier comprises an inner pot and a heating plate, wherein the heating plate is arranged below the inner pot;

[0038] The heating plate is placed under the inner liner. The heating plate is used to realize the electric heating function, and the inner liner is used to hold liquid. This combination is the core part of the electric heating vacuum flask to realize its basic functions. The inner bearing parts are prepared separately, which is convenient for controlling their quality and facilitating the subsequent assembly with the outer protective parts.

[0039] It should be noted here that after the outer protective member is prepared, a vacuum test is required before the inner bearing member is combined with the outer bearing member;

[0040] Step 3: Determine whether the upper opening of the outer protective member is larger than the maximum outer diameter of the inner bearing member. If so, adopt large-opening welding; if so, adopt small-opening welding to fix the outer protective member and the inner bearing member together.

[0041] Embodiment 1:

[0042] The upper opening of the outer protective member is larger than the maximum outer diameter of the inner bearing member:

[0043] Place the inner carrier into the outer container from top to bottom. This placement method is easy to operate. Then vacuumize from top to bottom. This vacuumizing direction is consistent with the placement direction of the inner carrier, which is conducive to ensuring the vacuum effect. Finally, weld the upper port of the inner container to the outer protective part to fix the inner carrier and the outer protective part together to form a complete thermos cup structure;

[0044] In this process, the welding point between the outer liner and the outer shell and the fixing point between the inner liner and the outer protective member can be fixed by a method other than internal welding or external welding according to the needs;

[0045] Embodiment 2:

[0046] The upper opening of the outer protective member is smaller than the maximum outer diameter of the inner bearing member, and no covering member needs to be assembled under the outer protective member to cover the inner bearing member:

[0047] At this time, insert the inner bearing into the outer liner from bottom to top, and then evacuate from bottom to top, also to ensure the vacuum effect. Weld the upper port of the inner liner and the outer liner to achieve a fixed connection between the two;

[0048] In this process, the welding point between the outer liner and the outer shell and the fixing point between the inner liner and the outer protective member can be fixed by a method other than internal welding or external welding according to the needs;

[0049] Embodiment three:

[0050] The upper opening of the outer protective member is smaller than the maximum outer diameter of the inner bearing member, and a covering member needs to be assembled under the outer protective member to cover the inner bearing member:

[0051] At this time, insert the inner bearing into the outer liner from bottom to top, and then evacuate from bottom to top, also to ensure the vacuum effect. Weld the upper port of the inner liner and the outer liner to achieve a fixed connection between the two;

[0052] Welding the covering ring, the outer diameter of the lower opening of the covering ring is smaller than the maximum outer diameter of the inner bearing part, so that the covering ring can protect and fix the inner bearing part, and enhance the structural stability of the thermos cup;

[0053] In this process, the welding point between the outer liner and the outer shell, and the fixing point between the inner liner and the outer protective component can be fixed by a method not limited to internal welding or external welding according to needs.

[0054] The conventional inner buckle structure of the traditional rear-welded heating plate will produce liquid residue in the inner surface corners of the inner tank bottom welding part. This process is to put the inner bearing part into the outer protective part and then vacuum and weld it as a whole, which changes the welding and assembly methods, avoids the hidden danger of liquid residue caused by the inner buckle structure, and meets the use scenarios with high requirements for cleanliness.

[0055] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0056] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0057] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A process for manufacturing an electrically heated vacuum insulated cup, comprising an outer protective member and an inner bearing member, wherein the inner bearing member is arranged inside the outer protective member, and characterized in that: The steps include: Step 1, preparing an outer protective member, the outer protective member comprises an outer shell and an outer liner, the outer shell is sleeved on the outer side of the outer liner, the outer shell is welded to the upper and lower edges of the outer liner and vacuumized to form the outer protective member; Step 2, preparing an inner carrier, wherein the inner carrier comprises an inner pot and a heating plate, wherein the heating plate is arranged below the inner pot; Step 3: Determine whether the upper opening of the outer protective member is larger than the maximum outer diameter of the inner bearing member. If so, adopt large-opening welding; if so, adopt small-opening welding to fix the outer protective member and the inner bearing member together.

2. The process for manufacturing an electrically heated vacuum flask according to claim 1, characterized in that: The step 3 includes the following detailed steps: Step a1, if the upper opening of the outer protective member is larger than the maximum outer diameter of the inner carrier, the inner carrier is placed into the outer container from top to bottom, and then vacuumed from top to bottom, and the upper port of the inner container is welded to the outer protective member; Step a2: If the upper opening of the outer protective member is smaller than the maximum outer diameter of the inner carrier, insert the inner carrier into the outer liner from bottom to top, then evacuate from bottom to top, and weld the upper port of the inner liner to the outer protective member.

3. The process for manufacturing an electrically heated vacuum flask according to claim 2, characterized in that: In the step a2, if the lower portion of the outer protective member needs to cover the inner bearing member, a covering ring is welded to the lower portion of the outer protective member, and the outer diameter of the lower opening of the covering ring is smaller than the maximum outer diameter of the bearing member.

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