A vacuum insulation device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-08-11
AI Technical Summary
[0005]鉴于以上所述现有技术的缺点，本实用新型的目的在于提供一种真空保温装置，用于解决改善现有技术中因颈管处热桥效应以及杯盖隔热性能不佳造成的热量流失问题
本实用新型通过将保温杯的杯身拆分为内胆和外壳，通过将外壳套设在内胆的外侧，并与内胆固定连接合围成密闭的真空隔热腔体配合隔热盖芯实现保温隔热的目的，通过在内胆加设杯口旋薄区减少内胆杯颈段的热传导效应，并通过加装密封圈与颈缩加强区抵紧配合完成内密封；通过将杯盖拆分为盖芯和盖体，将盖体拆分为盖体外壳和盖体内壳，并将连接在一起的盖体内壳、盖芯外壳与盖体外壳合围形成容纳腔，通过在容纳腔内加设隔热层，增加杯盖的隔热性能，提高了保温装置的整体保温效果，改善了现有技术中因颈管处热桥效应以及杯盖隔热性能不佳造成的热量流失的情况，采用此设计的480毫升容量的保温杯，在环境温度22℃条件下注入95℃热水后，可实现6小时水温保持在82℃以上，24小时水温保持在59℃以上，48小时水温保持在41℃以上的优异保温性能；在环境温度22℃的条件下注入4℃的冷水，可实现6小时水温保持在6℃以下，24小时水温保持在11℃以下，48小时水温保持在15℃以下的优异保冷性能。
Smart Images
Figure CN224612324U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of daily necessities production, and in particular relates to a vacuum insulation device. Background Technology
[0002] Vacuum-insulated containers, such as vacuum insulated cups and flasks, have become widely used heat storage appliances in daily life. Their typical structure includes an inner liner, an outer shell, and a sandwich layer between the inner liner and the outer shell. During manufacturing, the inner liner and outer shell are usually welded and sealed at the rim, and then the sandwich layer is evacuated to form a vacuum insulation layer. The vacuum layer effectively eliminates air convection and heat conduction by gas molecules, thus giving the cup excellent insulation properties.
[0003] However, existing vacuum-insulated containers have inherent heat dissipation defects in their structure, resulting in overall insulation performance falling short of ideal levels. These defects mainly stem from two aspects: First, the thermal bridging effect. To achieve structural sealing and mechanical strength, the inner liner and outer shell must be connected by a metal material at the neck of the cup. Although the cup body is in a vacuum, the metal shell at the connection point is itself a good conductor of heat, creating a highly efficient heat conduction channel, or "thermal bridge," in the insulation path. Heat preferentially flows from the inner liner to the outer shell through this metal neck, causing continuous heat loss. Second, the lid's insulation is insufficient. Unlike the cup body, the lid, due to structural and functional limitations (such as the need for opening and sealing), typically cannot achieve high-vacuum insulation. Therefore, the lid's insulation effect is far inferior to the vacuum insulation layer of the cup body, becoming another major source of heat loss.
[0004] In summary, among commonly available vacuum insulated containers on the market, under normal vacuum conditions, the heat loss through the vacuum layer of the container is actually very small, typically accounting for only about 10% of the total heat loss. The remaining approximately 90% of heat loss is caused by two factors: the thermal bridging effect at the neck of the container and the poor insulation performance of the lid itself. This deficiency is evident in daily use; for example, after pouring in 95℃ hot water, the lid quickly becomes hot to the touch. These factors severely limit further improvements in the heat preservation performance of vacuum insulated containers. At an ambient temperature of 22℃, currently available insulated cups with a capacity of less than 600ml can only maintain a water temperature above 40℃ for about 6 hours for low-end products, about 12 hours for ordinary products, and even a few high-end products only last about 24 hours. Utility Model Content
[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a vacuum insulation device to solve the problem of heat loss caused by the thermal bridging effect at the neck and the poor insulation performance of the cup lid in the prior art.
[0006] To achieve the above and other related objectives, this utility model provides a vacuum insulation device, including an insulated cup body and an insulated cup lid; The insulated cup body includes an inner liner and an outer shell; the outer shell is fitted onto the outside of the inner liner and is fixedly connected to the inner liner to form a sealed vacuum insulation cavity; the inner liner includes a cup mouth thinning area and a cup body thinning area; a necking reinforcement area is fixedly connected between the cup mouth thinning area and the cup body thinning area. The thermos lid includes a lid core and a lid body; the lid core includes a lid core outer shell, the bottom end of which is fitted with an annular sealing ring, which works in conjunction with the necking reinforcement area; the lid body has a cup-shaped structure and is fitted and fixed on the top outer side of the lid core; the lid body includes a lid body outer shell and a lid body inner shell; the lid body inner shell has an annular sleeve structure, and its top end is fixedly connected to the top end of the lid core outer shell; the lid body inner shell, lid core outer shell, and lid body outer shell, which are fixedly connected together, form a receiving cavity, and the receiving cavity is provided with a heat insulation layer.
[0007] Optionally, the outer shell of the cover core and the inner shell of the cover core are integrally formed to constitute a heat insulation shell.
[0008] Optionally, the outer shell of the cover core and the inner shell of the cover core are fitted with reinforcing rib protrusions on the side near the heat insulation layer; the outer side of the heat insulation layer is provided with vertically arranged grooves, and there are multiple grooves, which are arranged one-to-one with the reinforcing rib protrusions.
[0009] Optionally, the heat insulation layer includes an inner heat insulation layer and an outer heat insulation layer; the inner heat insulation layer is a columnar heat insulation block; the outer heat insulation layer is a cup-shaped heat insulation block, and the outer heat insulation layer is sleeved and fixed on the top outer side of the inner heat insulation layer.
[0010] Optionally, a metal protective shell is fixedly connected to the bottom outer side of the cover core outer shell.
[0011] Optionally, the necking reinforcement area is recessed inward to form an annular reinforcement groove.
[0012] Optionally, the top of the cup rim thinning area extends outward to form a flanged connecting area for connecting the top of the outer shell.
[0013] Optionally, the bottom of the thinned section of the cup body is fixedly connected to the bottom of the inner cup.
[0014] Optionally, the bottom wall of the outer casing is recessed inward and fixedly connected with an anti-slip pad.
[0015] As described above, the vacuum insulation device of this utility model has at least the following beneficial effects: This invention disassembles the thermos cup into an inner liner and an outer shell. The outer shell is fitted over the inner liner and fixedly connected to form a sealed vacuum insulation cavity, which, together with the insulated lid core, achieves heat insulation. A thinning zone at the rim of the inner liner reduces heat conduction at the neck section, and a sealing ring is added to tighten against the neck reinforcement zone for a secure internal seal. The lid is disassembled into a lid core and a lid body. The lid body is further disassembled into a lid body outer shell and a lid body inner shell. These three shells are joined together to form a receiving cavity. An insulation layer is added within this cavity to enhance the lid's insulation performance and improve heat retention. The overall heat preservation effect of the device improves the heat loss caused by the thermal bridging effect at the neck and the poor heat insulation performance of the cup lid in the existing technology. The 480 ml capacity thermos cup with this design can maintain the water temperature above 82℃ for 6 hours, above 59℃ for 24 hours, and above 41℃ for 48 hours after being filled with 95℃ hot water at an ambient temperature of 22℃. When filled with 4℃ cold water at an ambient temperature of 22℃, it can maintain the water temperature below 6℃ for 6 hours, below 11℃ for 24 hours, and below 15℃ for 48 hours.
[0016] This invention avoids the possibility of the cap core being submerged in drinking water for an extended period of time by adding a metal protective shell to the bottom of the cap core outer shell.
[0017] This invention designs the outer shell and inner shell of the lid core as an integrally molded polypropylene aerogel composite heat insulation shell, and adds reinforcing ribs protrusions inside to work with the vertically arranged grooves on the heat insulation layer. The rotational force generated when the heat insulation lid is opened and closed is evenly distributed on the outer shell of the lid core through the reinforcing ribs and grooves. The integrally molded outer shell of the lid core, inner shell of the lid, and heat insulation layer form a double heat insulation layer that wraps around the inner and outer sides of the bottle mouth of the heat preservation device, which not only achieves a double heat insulation effect for the bottle mouth of the heat preservation device, but also achieves a high-strength and lightweight effect for the cup lid. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the thermos cup lid of this utility model; Figure 3 This is a schematic diagram of the receiving cavity of the thermos cup lid of this utility model and the reinforcing rib protrusions inside the receiving cavity; Figure 4 This is a schematic diagram of the structure of the heat insulation layer inside the cavity of this utility model; Figure 5 This is a cross-sectional view of the overall structure of the thermos cup body of this utility model; Figure 6 This utility model Figure 5 Enlarged view of point A in the middle; Figure 7 This utility model Figure 5 Enlarged diagram of point B in the middle.
[0019] Component designation explanation 1. Inner liner; 101. Cup rim thinning area; 102. Neck constriction reinforcement area; 103. Cup body thinning area; 2. Outer shell; 3. Lid core outer shell; 301. Sealing ring; 4. Lid inner shell; 5. Lid outer shell; 6. Insulation layer; 601. Inner insulation layer; 602. Outer insulation layer. Detailed Implementation
[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0021] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0022] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.
[0023] Please see Figures 1 to 7 This utility model provides a vacuum insulation device, including an insulated cup body and an insulated cup lid; The insulated cup body includes an inner liner 1 and an outer shell 2; the outer shell 2 is fitted onto the outside of the inner liner 1 and is fixedly connected to the inner liner 1 to form a sealed vacuum insulation cavity; the inner liner 1 includes a cup mouth thinning area 101 and a cup body thinning area 103 (both the cup mouth thinning area 101 and the cup body thinning area 103 can be thinned by stretching, extrusion, turning, or grinding, etc., to reduce their thickness); a necking reinforcement area 102 is fixedly connected between the cup mouth thinning area 101 and the cup body thinning area 103 (the addition of the necking reinforcement area 102 facilitates the thinning process of the cup mouth thinning area 101 and the cup body thinning area 103, and also increases the support strength of the inner liner 1). The thermos lid includes a lid core and a lid body; the lid core includes a lid core outer shell 3, and an annular sealing ring 301 is fitted at the bottom end of the lid core outer shell 3, the sealing ring 301 cooperating with the necking reinforcement area 102; the lid body has a cup-shaped structure, and the lid body is fitted and fixed on the top outer side of the lid core; the lid body includes a lid body outer shell 5 and a lid body inner shell 4; the lid body inner shell 4 has an annular sleeve structure, and the top end of the lid body inner shell 4 is fixedly connected to the top end of the lid core outer shell 3; the parts fixedly connected together... The inner shell 4, the outer shell 3, and the outer shell 5 of the lid together form a receiving cavity. A heat insulation layer 6 is provided within the receiving cavity. This application separates the thermos cup body into an inner liner 1 and an outer shell 2. The outer shell 2 is fitted over the outer side of the inner liner 1 and fixedly connected to it to form a sealed vacuum heat insulation cavity, which, together with the heat-insulating lid core, achieves the purpose of heat insulation. The addition of a thin spiral section 101 at the rim of the inner liner 1 reduces the heat conduction effect at the neck section of the inner liner 1, and a sealing ring 301 is added to the neck... The reinforced zone 102 is tightened to complete the inner seal; by disassembling the lid into a lid core and a lid body, and disassembling the lid body into a lid body outer shell 5 and a lid body inner shell 4, the inner shell 4, the lid core outer shell 3, and the lid body outer shell 5 are connected to form a receiving cavity. By adding a heat insulation layer 6 in the receiving cavity, the heat insulation performance of the lid is increased, and the overall heat preservation effect of the heat preservation device is improved. This improves the heat loss caused by the thermal bridge effect at the neck tube and the poor heat insulation performance of the lid in the existing technology. The 480 ml capacity thermos cup with this design can maintain the water temperature above 82℃ for 6 hours, above 59℃ for 24 hours, and above 41℃ for 48 hours after pouring in 95℃ hot water at an ambient temperature of 22℃. It can maintain the water temperature below 6℃ for 6 hours, below 11℃ for 24 hours, and below 15℃ for 48 hours after pouring in 4℃ cold water at an ambient temperature of 22℃.
[0024] In this embodiment, please refer to Figures 2 to 4The outer shell 3 and the inner shell 4 are integrally formed to constitute a heat insulation shell. The heat insulation shell composed of the outer shell 3 and the inner shell 4 can be made of polypropylene aerogel composite material (polypropylene aerogel composite material is also known as aerogel-modified polypropylene material. Aerogel-modified polypropylene material is made by filling and modifying plastic with aerogel powder as a filler to produce aerogel-modified plastic that does not shed powder. Aerogel-modified polypropylene material is an existing material and will not be described in detail here). The outer shell 3 and the inner shell 4 are equipped with reinforcing ribs protruding on the side near the heat insulation layer 6. The outer side of the heat insulation layer 6 has vertically arranged grooves, and there are multiple grooves, which are arranged one-to-one with the reinforcing ribs protruding. The material of the heat insulation layer 6 can also be polypropylene aerogel composite material. The heat insulation layer 6 covers... The device includes an inner heat insulation layer 601 and an outer heat insulation layer 602. The inner heat insulation layer 601 is a columnar heat insulation block, and the outer heat insulation layer 602 is a cup-shaped heat insulation block. The outer heat insulation layer 602 is fitted and fixed on the top outer side of the inner heat insulation layer 601. This application designs the cap core outer shell 3 and the cap inner shell 4 as an integrally molded polypropylene aerogel composite heat insulation shell, and adds reinforcing ribs protrusions inside to cooperate with the vertically arranged grooves on the heat insulation layer 6. The rotational force generated when the heat insulation cap is opened and closed is evenly distributed on the cap core outer shell 3 through the reinforcing ribs and grooves. The integrally molded cap core outer shell 3, cap inner shell 4 and heat insulation layer 6 form a double heat insulation layer that wraps around the inner and outer sides of the bottle mouth of the heat preservation device, which not only achieves a double heat insulation effect for the bottle mouth of the heat preservation device, but also achieves the effect of high strength and lightweight cup cap.
[0025] In this embodiment, a metal protective shell is fixedly connected to the bottom outer side of the cap core shell 3. This application avoids the possibility of the cap core shell 3 being immersed in drinking water for a long time by adding a metal protective shell to the bottom of the cap core shell 3.
[0026] In this embodiment, please refer to Figure 1 and Figure 7 The necking reinforcement area 102 is recessed inward to form an annular reinforcement groove. This application connects the cup mouth thinning area 101 and the cup body thinning area 103 by opening an annular reinforcement groove in the necking reinforcement area 102, while facilitating the implementation of the thinning work of the cup mouth thinning area 101 and the cup body thinning area 103 (providing a tensile support point for the thinning of the inner liner 1), thereby increasing the overall support strength of the inner liner 1.
[0027] In this embodiment, please refer to Figure 1 and Figure 5 The top of the cup mouth thinning area 101 extends outward to form a flanged connection area, which is used to connect the top of the outer shell 2. The flanged connection area of this application provides a clamping and stretching point for the cup mouth thinning operation, and can also be welded and fixed to the top of the outer shell 2.
[0028] In this embodiment, please refer to Figure 1 and Figure 5 The bottom of the cup body thinning area 103 is fixedly connected to the bottom of the inner liner 1. The bottom of the inner liner 1 is fixedly connected to the cup body thinning area 103 by welding to form a receiving cavity.
[0029] In this embodiment, the bottom wall of the outer shell 2 is recessed inward and fixedly connected with an anti-slip pad, which is made of silicone.
[0030] In summary, this utility model overcomes the various shortcomings of the prior art.
[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A vacuum heat preservation device, characterized in that: Including the thermos body and the thermos lid; The insulated cup body includes an inner liner and an outer shell; the outer shell is fitted onto the outside of the inner liner and is fixedly connected to the inner liner to form a sealed vacuum insulation cavity; the inner liner includes a cup mouth thinning area and a cup body thinning area; a necking reinforcement area is fixedly connected between the cup mouth thinning area and the cup body thinning area. The thermos lid includes a lid core and a lid body; the lid core includes a lid core outer shell, the bottom end of which is fitted with an annular sealing ring, which works in conjunction with the necking reinforcement area; the lid body has a cup-shaped structure and is fitted and fixed on the top outer side of the lid core; the lid body includes a lid body outer shell and a lid body inner shell; the lid body inner shell has an annular sleeve structure, and its top end is fixedly connected to the top end of the lid core outer shell; the lid body inner shell, lid core outer shell, and lid body outer shell, which are fixedly connected together, form a receiving cavity, and the receiving cavity is provided with a heat insulation layer.
2. The vacuum insulation device according to claim 1, characterized in that: The outer shell of the cover core and the inner shell of the cover core are integrally formed to form a heat insulation shell.
3. The vacuum heat preservation device according to claim 1, characterized in that: The outer shell of the cover core and the inner shell of the cover core are equipped with reinforcing rib protrusions on the side near the heat insulation layer; the outer side of the heat insulation layer is provided with vertically arranged grooves, and there are multiple grooves, which are arranged one-to-one with the reinforcing rib protrusions.
4. The vacuum insulation device according to claim 1, characterized in that: The heat insulation layer includes an inner heat insulation layer and an outer heat insulation layer; the inner heat insulation layer is a columnar heat insulation block; the outer heat insulation layer is a cup-shaped heat insulation block, and the outer heat insulation layer is sleeved and fixed on the top outer side of the inner heat insulation layer.
5. The vacuum insulation device according to claim 1, characterized in that: A metal protective shell is fixedly connected to the bottom outer side of the cover core outer shell.
6. The vacuum insulation device according to claim 1, characterized in that: The necking reinforcement area is recessed inward to form an annular reinforcement groove.
7. A vacuum insulation device according to claim 1, characterized in that: The top of the cup rim thinning area extends outward to form a flanged connection area, which is used to connect to the top of the outer shell.
8. A vacuum heat preservation device according to claim 1, characterized in that: The bottom of the thinned section of the cup body is fixedly connected to the bottom of the inner cup.
9. A vacuum heat preservation device according to claim 1, characterized in that: The bottom wall of the outer shell is recessed inward and is fixedly connected with an anti-slip pad.