Vacuum cup

Abstract

The utility model provides a vacuum cup which comprises a cup body and a cup cover which are of a multi-layer composite structure, and the cup body is detachably connected with the cup cover. The cup body comprises a vacuum thermal insulation material and an inner container; the outer side face of the inner container is wrapped with a layer of vacuum heat preservation material. The vacuum heat preservation material is of a heat preservation structure in which the core material is packaged in a vacuum mode through a barrier film. According to the vacuum cup, the design of a traditional double-layer vacuum cup is changed, the vacuum heat preservation material is placed between the inner container and the outer layer, and the vacuum heat preservation material is fixed by injecting the foaming material. Besides, the vacuum heat preservation materials and the inner container are attached and assembled in the mode that the multiple vacuum heat preservation materials are spliced, the heat preservation performance and the cold preservation performance of the vacuum cup are greatly improved through the high heat preservation performance of the vacuum heat preservation materials, cost is reduced, and the heat preservation performance is good.

Description

Technical Field

[0001] This utility model belongs to the technical field of vacuum insulation materials and their preparation devices, and in particular relates to a thermos cup. Background Technology

[0002] Currently, insulated cups, as a common portable beverage container, are primarily designed based on a double-layer structure. This structure effectively blocks heat conduction through the middle vacuum layer, thereby maintaining the beverage temperature for a longer period. The double-layer design gives insulated cups a significant heat retention effect, effectively slowing down heat loss and maintaining the beverage at a suitable temperature for an extended period.

[0003] While insulated water bottles offer excellent insulation, their heat retention time is not indefinite. Beverages will gradually cool down over time. High-quality insulated water bottles typically use premium materials and meticulous craftsmanship, resulting in a relatively higher cost. Furthermore, insulated water bottles are not suitable for prolonged storage of acidic beverages or perishable drinks like milk, as this may affect the taste or quality of the beverage. In addition, due to their double-walled design, insulated water bottles are heavier than regular beverage containers, potentially impacting portability. Summary of the Invention

[0004] Technical Solution: To solve the above-mentioned technical problems, this utility model provides a thermos cup, the specific technical solution of which is: a cup body and a cup lid with a multi-layer composite structure, wherein the cup body and the cup lid are detachably connected; the cup body includes a vacuum insulation material and an inner liner; the outer side of the inner liner is wrapped with a layer of vacuum insulation material; the vacuum insulation material is an insulation structure in which the core material is vacuum-sealed through a barrier film.

[0005] As an improvement, it also includes a filling insulation layer, which is installed on the outer side of the vacuum insulation material and is a structure made of PU foam material or aerogel.

[0006] As an improvement, the vacuum insulation material includes a sidewall vacuum insulation material and a bottom vacuum insulation material, wherein the sidewall vacuum insulation material is attached to the outer sidewall of the inner liner, and the bottom vacuum insulation material is attached to the bottom of the inner liner.

[0007] As an improvement, an outer layer is also included, which is installed on the outside of the insulation layer.

[0008] As an improvement, the inner liner and outer layer are made of food-grade stainless steel; the inner liner and outer layer are connected by pulsed TIG welding or laser welding.

[0009] As an improvement, the vacuum insulation material barrier film also includes at least one of a desiccant and a getter.

[0010] Beneficial Effects: The thermos cup proposed in this utility model changes the traditional design of double-layer thermos cups. It places vacuum insulation material between the inner liner and the outer layer, and further fixes the vacuum insulation material by injecting foaming material. In addition, this utility model uses multiple pieces of vacuum insulation material spliced ​​together, allowing the vacuum insulation material to adhere and assemble with the inner liner. The high heat retention performance of the vacuum insulation material greatly improves the heat and cold retention performance of the thermos cup, while reducing costs and providing excellent heat retention. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the thermos cup of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the vacuum insulation material of this utility model.

[0013] In the diagram: 1. Outer layer; 2. Insulation layer; 3. Vacuum insulation material; 4. Inner liner; 5. Barrier membrane; 6. Core material; 7. Desiccant; 8. Getter. Detailed Implementation

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the examples. These examples are used to illustrate this utility model, but are not intended to limit its scope.

[0015] See Figure 1 As shown, the thermos cup of this utility model includes a multi-layer composite structure cup body and a cup lid, the cup body and the cup lid being detachably connected; the cup body includes a vacuum insulation material 3 and an inner liner 4; the outer side of the inner liner 4 is wrapped with a layer of vacuum insulation material 3; the vacuum insulation material 3 is an insulation structure in which the core material is vacuum-sealed through a barrier film.

[0016] A filling insulation layer 2, made of PU foam or aerogel, is designed on the outer surface of the vacuum insulation material 3. An outer layer 1 is also included, installed on the outside of the filling insulation layer 2. The inner liner 4 and the outer layer 1 are made of food-grade stainless steel; the inner liner 4 and the outer layer 1 are connected by pulsed TIG welding or laser welding.

[0017] The vacuum insulation material 3 of this utility model is an insulation structure that uses a barrier film to vacuum encapsulate the core material, see... Figure 2 As shown, the material includes a core material 6 and a barrier film 5. The barrier film 6 is wrapped around the outer surface of the core material 6 and is sealed by vacuum. The core material 6 can be made of materials such as fumed silica, glass fiber, aerogel, powdered silica, microporous polyurethane, polystyrene foam (PS), polyurethane foam (PU), mineral fiber, glass wool, or glass wool felt. Optionally, at least one of a desiccant 7 and a getter 8 may also be included inside the barrier film of the vacuum insulation material.

[0018] In this utility model, the vacuum insulation material is attached to the outer surface of the inner liner 4 in a splicing manner. Specifically, the vacuum insulation material 3 is wrapped around the inner liner 4. At the bottleneck position of the inner liner 4, the vacuum insulation material 3 is grooved to fully wrap the inner liner 4. The bottom of the inner liner 4 is attached with a circular sheet of vacuum insulation material 3 to form a bottom that completely wraps the inner liner. The vacuum insulation material 3 around the perimeter is bent to make the width direction end joint. Then the bottom circular vacuum insulation material is assembled.

[0019] In this invention, after the insulation layer of the vacuum insulation material is assembled, the gap between the vacuum insulation material 3 and the inner liner 4 is controlled at 0.5 to 1 mm after the inner liner is installed.

[0020] In the manufacture of this thermos cup, the inner liner 4 is first installed, and then the grooved vacuum insulation material at the neck is squeezed to form a shape similar to the neck position. This vacuum insulation material is then wrapped around the inner liner. Next, the outer layer 1, preferably food-grade stainless steel, is fitted into the inner liner containing the vacuum insulation material, ensuring that the inner and outer liner openings are flush. The opening is then welded using pulsed TIG or laser welding. The thicker semi-finished product at the opening is filled with PU foam liquid or paste-like aerogel to ensure the gaps are completely filled. After filling, the stainless steel outer cup bottom is quickly fitted in and secured. After solidification and fixation, the seams are welded using pulsed TIG or laser welding. The welded semi-finished product is then polished, and then painted as needed.

[0021] The temperature test data of the thermos cup of this utility model compared with that of a conventional double-walled stainless steel thermos cup are as follows:

[0022] Table 1 Test Data

[0023]

[0024] As shown in Table 1, three groups of insulated cups were selected in this test. Each group consisted of three subgroups: sample ①, sample ②, and sample ③. The first group of insulated cups was wrapped with vacuum insulation material but did not have an outer layer or a filling insulation layer. The second group of insulated cups was wrapped with vacuum insulation material and an outer layer but did not have a filling insulation layer. The third group of insulated cups was wrapped with vacuum insulation material, an outer layer, and a filling insulation layer.

[0025] The test data above shows that the heat preservation performance is relatively stable after adding vacuum insulation material. At a water temperature of 95±1℃ and an ambient temperature of 24±2℃, the temperature of the thermos cup is basically at room temperature after 10 minutes, and the water temperature is maintained at around 48℃ after 6 hours, indicating good heat preservation performance.

[0026] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A thermos cup, characterized in that: The cup includes a multi-layered composite structure cup body and cup lid, the cup body and cup lid being detachably connected; the cup body includes vacuum insulation material and an inner liner; the outer surface of the inner liner is wrapped with a layer of vacuum insulation material; the vacuum insulation material is an insulation structure in which the core material is vacuum-sealed through a barrier film.

2. The thermos cup according to claim 1, characterized in that: It also includes a filling insulation layer, which is installed on the outer surface of the vacuum insulation material and is a structure made of PU foam material or aerogel.

3. The thermos cup according to claim 1 or 2, characterized in that: The vacuum insulation material includes sidewall vacuum insulation material and bottom vacuum insulation material, wherein the sidewall vacuum insulation material is attached to the outer sidewall of the inner liner, and the bottom vacuum insulation material is attached to the bottom of the inner liner.

4. The thermos cup according to claim 2, characterized in that: It also includes an outer layer, which is installed on the outside of the insulation layer.

5. The thermos cup according to claim 2, characterized in that: The inner liner and outer layer are made of food-grade stainless steel; the inner liner and outer layer are connected by pulsed TIG welding or laser welding.

6. The thermos cup according to claim 1, characterized in that: The vacuum insulation material barrier film also includes at least one of a desiccant and a getter.

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