A vacuum flask
By incorporating a heat insulation layer and limiting components into the thermos, combined with a semiconductor cooling component and a heat dissipation structure, the problem of poor heat insulation at the bottom of the vacuum liner is solved, improving the heat preservation effect and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN MIQI ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-03
AI Technical Summary
The insulation between the bottom and the outside of the vacuum liner of existing thermos cups is poor, which affects the overall heat preservation effect.
A heat insulation layer is provided on the outer periphery of the heat insulation cavity and the upper electrical cavity, and a heat insulation limiting component is added between the heat insulation component and the main body of the machine body. Combined with the semiconductor cooling component and the heat dissipation structure, the heat exchange efficiency is improved.
It improves the heat insulation effect of the thermos, extends the service life of the insulation components, and ensures that the product can operate normally in environments without mains power.
Smart Images

Figure CN224441115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of household appliances, specifically to a thermos. Background Technology
[0002] The patent document with announcement number CN206456773U discloses "a multifunctional rechargeable thermos cup for biological materials and pharmaceuticals", the specific content of which includes "the thermos cup includes a thermos cup body and a thermos cup lid. The thermos cup body includes an outer shell, a vacuum inner liner and a bottom plate. The outer shell is made of plastic. The vacuum inner liner includes an inner side wall and an outer side wall. A vacuum is drawn between the inner and outer side walls. The feature is that a semiconductor air conditioning system is provided at the bottom of the thermos cup body".
[0003] As can be seen from the attached diagrams in the aforementioned public documents, a vacuum insulation layer is formed between the inner and outer walls. Furthermore, the bottom of the vacuum insulation layer is at a higher level than the bottom outer side of the vacuum liner, resulting in a relatively poor heat insulation effect between the surface of the thermos and the bottom outer side of the vacuum liner, thus affecting the overall heat insulation effect of the vacuum liner.
[0004] Therefore, further improvements are needed. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a thermos. By setting the heat insulation layer on the circumferential outer side of the heat insulation cavity and the upper electrical cavity, heat exchange between the side wall and bottom outer side of the heat insulation cavity and the outside of the main body is not easy, thereby improving the heat insulation effect of the product.
[0006] The purpose of this utility model is achieved as follows:
[0007] A thermos includes a main body with a heat preservation cavity. An upper electrical cavity is provided on the outer bottom of the heat preservation cavity. A heat preservation component is provided inside the upper electrical cavity and is fitted to the outer bottom of the heat preservation cavity. A heat insulation layer is provided inside the main body at a position corresponding to the outer periphery of the heat preservation cavity and the upper electrical cavity. The heat insulation layer is recessed relative to the bottom of the heat preservation cavity and surrounds and covers the outer periphery of the upper electrical cavity.
[0008] As a specific embodiment, the insulation component is a semiconductor refrigeration component.
[0009] As a specific embodiment, the upper electrical cavity is also provided with a heat insulation limiting member. The heat insulation limiting member has a limiting groove corresponding to the shape of the heat insulation member. The heat insulation member is embedded in the limiting groove. The heat insulation limiting member extends horizontally to the inner wall of the upper electrical cavity and is adjacent to the heat insulation layer.
[0010] As a specific embodiment, the fuselage body includes an upper fuselage shell and a lower fuselage shell. A heat insulation layer is formed on the side wall of the upper fuselage shell. The bottom periphery of the upper fuselage shell is provided with a connecting groove formed by bending inward. The upper periphery of the lower fuselage shell is provided with a connecting edge corresponding to the connecting groove. The width of the connecting groove matches the width of the connecting edge, and the connecting edge and the connecting groove fit together tightly.
[0011] As a specific embodiment, an intermediate electrical cavity is provided inside the main body of the machine body at a position corresponding to the lower part of the upper electrical cavity. A heat dissipation seat is provided inside the intermediate electrical cavity. The heat dissipation seat is connected and fixed to the bottom outer side of the insulation cavity by a locking member. The heat dissipation seat is attached to the lower side of the insulation component.
[0012] As a specific embodiment, a lower electrical cavity is provided inside the main body of the fuselage, corresponding to the position below the middle electrical cavity, and a cooling fan is provided inside the lower electrical cavity to improve the efficiency of airflow through the heat sink.
[0013] As a specific embodiment, the heat sink has several air guide slots arranged in the left and right directions. The main body of the unit is provided with upper heat dissipation holes on the left and right sides corresponding to the middle electrical cavity, and the main body of the unit is provided with lower heat dissipation holes on the left and right sides corresponding to the lower electrical cavity. The upper heat dissipation holes and the lower heat dissipation holes form a heat dissipation air duct for the cooling fan and the heat sink. The upper heat dissipation holes and the lower heat dissipation holes are connected through the heat dissipation air duct.
[0014] As a specific embodiment, a partition is provided between the intermediate electrical cavity and the lower electrical cavity, with the inner and outer sides of the partition respectively adjacent to and cooperating with the cooling fan and the inner wall of the main body.
[0015] As a specific embodiment, the bottom of the main body is connected to an outer base, and a power supply battery is installed inside the outer base. The insulation component is electrically connected to the power supply battery.
[0016] As a specific embodiment, the outer base and the main body are detachable from each other and are fixed together by locking components. The bottom of the main body is provided with a support structure that enables the main body to be placed vertically.
[0017] The beneficial effects of this utility model are:
[0018] The side walls and bottom outer sides of the insulation cavity do not easily exchange heat with the outside of the main body, thus improving the product's heat insulation effect. Attached Figure Description
[0019] Figure 1 This is a cross-sectional view of an embodiment of the present utility model. Figure 1 .
[0020] Figure 2 This is a cross-sectional view of an embodiment of the present utility model. Figure 2 .
[0021] Figure 3 This is a structural schematic diagram of an embodiment of the present utility model.
[0022] Figure 4 This is an exploded view of an embodiment of the present invention.
[0023] Figure 5 This is an enlarged view of embodiment A of the present utility model. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] See Figures 1-5 This thermos includes a main body 1, which has a heat preservation cavity 11. An upper electrical cavity 12 is provided on the outer side of the bottom of the heat preservation cavity 11. A heat preservation component 2 is provided inside the upper electrical cavity 12 and is attached to the outer side of the bottom of the heat preservation cavity 11. A heat insulation layer 13 is provided inside the main body 1 at a position corresponding to the outer side of the heat preservation cavity 11 and the upper electrical cavity 12. The heat insulation layer 13 is recessed relative to the bottom of the heat preservation cavity 11 and surrounds and covers the outer periphery of the upper electrical cavity 12. By placing the heat insulation layer 13 on the outer side of the heat preservation cavity 11 and the upper electrical cavity 12, heat exchange between the side wall and the outer side of the bottom of the heat preservation cavity 11 and the outside of the main body 1 is not easily achieved, thereby improving the heat insulation effect of the product.
[0026] Furthermore, the insulation component 2 is a semiconductor cooling component, which can achieve the effect of cooling or heating the insulation cavity 11 by changing the direction of the current passing through the semiconductor cooling component, thus enriching the insulation function of the product.
[0027] Furthermore, a heat insulation limiting member 3 is also provided in the upper electrical cavity 12. The heat insulation limiting member 3 is provided with a limiting groove 31 corresponding to the shape of the heat insulation member 2. The heat insulation member 2 is embedded in the limiting groove 31. The heat insulation limiting member 3 extends horizontally to the inner wall of the upper electrical cavity 12 and is adjacent to the heat insulation layer 13. The heat insulation limiting member 3 can not only limit the heat insulation member 2, but also further reduce the efficiency of heat exchange between the bottom outer side of the heat insulation cavity 11 and the surface of the heat insulation member 2 and the main body 1, thereby further improving the heat insulation effect.
[0028] Furthermore, the main body 1 includes an upper body shell 14 and a lower body shell 15. A heat insulation layer 13 is formed on the side wall of the upper body shell 14. The bottom periphery of the upper body shell 14 is provided with a connecting groove 141 formed by bending inward. The upper periphery of the lower body shell 15 is provided with a connecting edge 151 corresponding to the connecting groove 141. The width of the connecting groove 141 matches the width of the connecting edge 151. The connecting edge 151 and the connecting groove 141 fit together tightly. The connecting groove 141 improves the structural strength of the upper body shell 14. At the same time, the fit between the connecting groove 141 and the connecting edge 151 can keep the surface of the main body 1 relatively smooth after the upper body shell 14 and the lower body shell 15 are installed and connected, making the product more aesthetically pleasing.
[0029] Furthermore, an intermediate electrical cavity 16 is provided inside the main body 1, corresponding to the position below the upper electrical cavity 12. A heat sink 4 is provided inside the intermediate electrical cavity 16. The heat sink 4 is connected and fixed to the bottom outer side of the insulation cavity 11 by a locking member. The heat sink 4 is attached to the lower side of the insulation component 2. When the insulation component 2 is working in the cooling mode, the heat sink 4 can dissipate heat and cool down the bottom of the insulation component 2, thus extending the service life of the insulation component 2.
[0030] Furthermore, a lower electrical cavity 17 is provided inside the main body 1, corresponding to the position below the middle electrical cavity 16. The lower electrical cavity 17 is provided with a cooling fan 6 to improve the efficiency of airflow through the heat sink 4. The cooling fan 6 can further improve the heat dissipation and cooling effect of the heat sink 4.
[0031] Furthermore, the heat sink 4 has several air guide slots 41 arranged in the left and right directions. The main body 1 has upper heat dissipation holes 161 on the left and right sides corresponding to the middle electrical cavity 16, and lower heat dissipation holes 171 on the left and right sides corresponding to the lower electrical cavity 17. The upper heat dissipation holes 161 and the lower heat dissipation holes 171 form a heat dissipation channel for the cooling fan 6 and the heat sink 4. The upper heat dissipation holes 161 and the lower heat dissipation holes 171 are connected through the heat dissipation channel. The air guide slots 41 can increase the heat dissipation area of the heat sink 4. With the upper heat dissipation holes 161 and the lower heat dissipation holes 171, the airflow can carry the heat on the heat sink 4 outward more efficiently.
[0032] Furthermore, a partition 5 is provided between the intermediate electrical cavity 16 and the lower electrical cavity 17. The inner and outer sides of the partition 5 are adjacent to and cooperate with the cooling fan 6 and the inner wall of the main body 1, respectively. The partition 5 can reduce the chance of airflow interference between the upper heat dissipation hole 161 and the lower heat dissipation hole 171 inside the main body 1, so that the airflow can move along a preset path and improve the heat dissipation efficiency.
[0033] Furthermore, the bottom of the main body 1 is connected to an outer base 7, and a power supply battery 8 is installed inside the outer base 7. The insulation component 2 is electrically connected to the power supply battery 8, so that the product can be used in more different scenarios. For example, in an environment where there is no mains power, the power supply battery 8 can maintain the normal operation of the product.
[0034] Furthermore, the outer base 7 and the main body 1 are detachable from each other and are fixed together by locking components. The bottom of the main body 1 is provided with a support structure that allows the main body 1 to stand upright. When the manufacturer needs to produce a thermos without a power supply battery 8, the outer base 7 can be omitted directly, and the overall structure of the main body 1 does not need to be changed, thus reducing production costs.
[0035] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.
Claims
1. A vacuum flask, characterized in that, The device includes a main body (1), which has a heat insulation cavity (11). An upper electrical cavity (12) is provided on the outer side of the bottom of the heat insulation cavity (11). A heat insulation component (2) is provided inside the upper electrical cavity (12). The heat insulation component (2) is attached to the outer side of the bottom of the heat insulation cavity (11). A heat insulation layer (13) is provided in the main body (1) at a position corresponding to the outer side of the heat insulation cavity (11) and the upper electrical cavity (12). The heat insulation layer (13) sinks relative to the bottom of the heat insulation cavity (11) and surrounds and covers the periphery of the upper electrical cavity (12).
2. The vacuum flask according to claim 1, characterized in that: The insulation component (2) is a semiconductor refrigeration component.
3. The vacuum-insulated tumbler of claim 1, wherein: The upper electrical cavity (12) is also provided with a heat insulation limiting member (3). The heat insulation limiting member (3) is provided with a limiting groove (31) corresponding to the shape of the heat insulation member (2). The heat insulation member (2) is embedded in the limiting groove (31). The heat insulation limiting member (3) extends horizontally to the inner wall of the upper electrical cavity (12) and is adjacent to the heat insulation layer (13).
4. The vacuum-insulated tumbler of claim 1, wherein: The main body (1) includes an upper fuselage shell (14) and a lower fuselage shell (15). The heat insulation layer (13) is formed on the side wall of the upper fuselage shell (14). The bottom periphery of the upper fuselage shell (14) is provided with a connecting groove (141) formed by bending inward. The upper periphery of the lower fuselage shell (15) is provided with a connecting edge (151) corresponding to the connecting groove (141). The width of the connecting groove (141) matches the width of the connecting edge (151). The connecting edge (151) and the connecting groove (141) fit together tightly.
5. The vacuum-insulated tumbler of claim 1, wherein: The main body (1) has an intermediate electrical cavity (16) located below the upper electrical cavity (12). The intermediate electrical cavity (16) has a heat sink (4). The heat sink (4) is connected and fixed to the bottom outer side of the insulation cavity (11) by a locking member. The heat sink (4) is attached to the lower side of the insulation member (2).
6. The vacuum flask of claim 5, wherein: The main body (1) has a lower electrical cavity (17) located below the middle electrical cavity (16), and the lower electrical cavity (17) is equipped with a cooling fan (6) to improve the efficiency of airflow through the heat sink (4).
7. The vacuum flask of claim 6, wherein: The heat sink (4) has several air guide slots (41) arranged in the left and right directions. The main body (1) is provided with upper heat dissipation holes (161) on the left and right sides corresponding to the middle electrical cavity (16), and lower heat dissipation holes (171) are provided on the left and right sides corresponding to the lower electrical cavity (17). The upper heat dissipation holes (161) and the lower heat dissipation holes (171) form a heat dissipation air duct for flowing through the cooling fan (6) and the heat sink (4). The upper heat dissipation holes (161) and the lower heat dissipation holes (171) are connected through the heat dissipation air duct.
8. The thermos flask according to claim 6, characterized in that: A partition (5) is provided between the intermediate electrical cavity (16) and the lower electrical cavity (17). The inner and outer sides of the partition (5) are respectively adjacent to the cooling fan (6) and the inner wall of the main body (1).
9. The vacuum flask according to any one of claims 1-8, characterized in that: The bottom of the main body (1) is connected to an outer base (7), and a power supply battery (8) is provided inside the outer base (7). The heat insulation component (2) is electrically connected to the power supply battery (8).
10. The vacuum flask of claim 9, wherein: The outer base (7) and the main body (1) are detachable from each other and are fixed together by locking components. The bottom of the main body (1) is provided with a support structure that enables the main body (1) to be placed vertically.