Heating constant-temperature vacuum cup

By introducing venting silicone and a venting mechanism into the thermos cup, the problem of the sealing cap falling off due to increased gas pressure during heating is solved, achieving a safe and reliable automatic pressure relief effect and improving safety and stability in use.

CN223845386UActive Publication Date: 2026-01-30THERMOS (JIANGSU) HOUSEWARES CO LTD
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Patent Information

Application Number
CN202520343418.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-01-30
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing insulated heating cups pose a safety risk because the increased internal pressure during heating can cause the sealing lid to detach and splash.

Method used

A thermos cup with constant temperature was designed, which consists of a cup body, a lid, a heating element, and a venting silicone. Through the cooperation of the venting mechanism and the venting silicone, automatic pressure relief is achieved to avoid safety hazards caused by excessive air pressure.

Benefits of technology

It effectively prevents the sealing cap from falling off and splashing due to excessive air pressure, improving safety and stability in use and reducing the risk of personal injury.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223845386U_ABST
    Figure CN223845386U_ABST
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Abstract

The utility model discloses a heating constant temperature vacuum cup, relates to vacuum cup technical field, including cup body, cup lid, heating element and exhaust silica gel, the upper end of cup body is provided with the cup lid, inside the cup body is provided with the inner container, the lower end of the inner container is provided with the heating element, the cup lid comprises a plug body, the plug body is provided with the heating element, the heating element is provided with the exhaust silica gel. An exhaust mechanism is arranged at the lower end of the plug body, and the exhaust silica gel is arranged in the exhaust mechanism. According to the utility model, through the arrangement of the cup body, the cup cover, the heating element, the exhaust silica gel and the exhaust mechanism, the cup has an exhaust function, when the air pressure in the cup is too high, the pressure can be automatically relieved, and the personal injury risk caused by the too high air pressure in the cup, ejection of the plug body, ejection and splashing is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vacuum cup, especially to heating constant temperature vacuum cup. BACKGROUND

[0002] At present, there are many heating vacuum cups on the market, which are connected to the power supply, mostly three-phase alternating current high-power plugs or built-in lithium batteries, and the heating disc is integrated in the bottom of the cup.

[0003] The existing technology includes a cup body and a cup cover arranged on the upper end of the cup body, and the cup cover is sealed on the top of the vacuum cup. When the bottom of the cup body is continuously heated to the boiling of the internal water, the internal air pressure of the cup body will increase, and the internal air pressure expansion will cause the sealing cover to fall off and splash, which has a safety risk. UTILITY MODEL CONTENTS

[0004] The utility model discloses a heating constant temperature vacuum cup, which is used to solve the above technical problems.

[0005] The utility model adopts the technical scheme as follows:

[0006] The heating constant temperature vacuum cup comprises a cup body, a cup cover, a heating element and exhaust silica gel, the upper end of the cup body is provided with the cup cover, the inside of the cup body is provided with an inner container, the lower end of the inner container is provided with the heating element, the cup cover comprises a plug body, the lower end of the plug body is provided with an exhaust mechanism, and the exhaust mechanism is provided with the exhaust silica gel.

[0007] As a preferred, the exhaust mechanism comprises exhaust holes and an exhaust groove, the lower end of the plug body is provided with the exhaust groove, two exhaust holes are arranged on the two sides of the exhaust groove, and the exhaust holes are communicated with the exhaust groove.

[0008] As a further preferred, a plurality of sawtooth surrounding edges are arranged on the outer wall of the exhaust silica gel, the exhaust silica gel is arranged in the exhaust groove, and the sawtooth surrounding edges are matched with the inner wall of the exhaust groove.

[0009] As a further preferred, a plurality of strip grooves are arranged on the outer wall of the exhaust silica gel, the strip grooves are arranged along the axial direction of the exhaust silica gel, and the strip grooves penetrate the sawtooth surrounding edges.

[0010] As a preferred, the upper surface of the exhaust silica gel is provided with a gap with the upper inner wall of the exhaust groove.

[0011] As a preferred, a column is further arranged, the upper inner wall of the exhaust groove is provided with the column, a through hole is arranged in the middle part of the exhaust silica gel, an exhaust valve film is arranged in the through hole, and the column penetrates the exhaust valve film.

[0012] As preferred, the heating element comprises an electric heating wire heating disc arranged at the lower end of the inner container.

[0013] As further preferred, a temperature control module assembly is further comprised, the inner wall of the cup body is provided with the temperature control module assembly, and the temperature control module assembly is connected with the electric heating wire heating disc.

[0014] As further preferred, a lead wire and a Type-C female seat are further comprised, the Type-C female seat is arranged on the inner wall of the lower end of the cup body, and the Type-C female seat is connected with the temperature control module assembly and the electric heating wire heating disc through the lead wire.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the utility model, through the cup body, the cup cover, the heating element, the exhaust silica gel and the exhaust mechanism, the exhaust function is achieved, the pressure in the inner container can be automatically released when the pressure is too large, the risk of personal injury caused by the ejection of the plug body is avoided, the internal temperature control assembly is arranged at a low position, and the cup body has good stability and is not easy to be poured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the internal structure schematic view of the heating constant-temperature vacuum cup in the utility model;

[0018] Figure 2 is the sectional view of the plug body in the utility model;

[0019] Figure 3 is the structure schematic view of the exhaust silica gel in the utility model.

[0020] In the drawing: 1, cup body; 2, cup cover; 3, heating element; 4, exhaust silica gel; 5, inner container; 6, plug body; 7, outer cover; 8, exhaust hole; 9, exhaust groove; 10, sawtooth surrounding edge; 11, strip-shaped groove; 12, columnar post; 13, exhaust valve film; 14, temperature control module assembly; 15, Type-C female seat; 16, lead wire. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] In the description of the utility model, it is necessary to explain that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like appear, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", "third" appear, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, if the terms "mounting", "connection", "connection" appear, they should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Figure 1 It is the internal structure schematic view of the heating constant-temperature vacuum cup in the utility model, Figure 2 It is the sectional view of the plug body in the utility model, Figure 3 It is the structure schematic view of the exhaust silica gel in the utility model.

[0025] Among them, Figure 1 A directional cross-sectional view of the plug body 6 is shown in the figure, Figure 2 Another directional cross-sectional view of the plug body 6 is shown in the figure.

[0026] Please see Figures 1 to 3 As shown, a preferred embodiment is shown, and the heating constant-temperature vacuum cup shown comprises a cup body 1, a cup cover 2, a heating element 3 and an exhaust silica gel 4, the upper end of the cup body 1 is provided with the cup cover 2, the inside of the cup body 1 is provided with an inner container 5, the lower end of the inner container 5 is provided with the heating element 3, the cup cover 2 comprises a plug body 6, the lower end of the plug body 6 is provided with an exhaust mechanism, and the exhaust mechanism is provided with the exhaust silica gel 4. In the embodiment, see Figure 1As shown, the cup cover 2 further comprises an outer cover 7, which is buckled outside the opening of the cup body 1 after the plug body 6 is inserted into the opening of the cup body 1. The outer wall of the plug body 6 is in interference fit with the inner wall of the opening of the cup body 1, and the opening of the inner container 5 is welded and sealed with the opening of the cup body 1, thereby forming a sealed chamber between the inner container 5 and the cup body 1. The heating element 3 comprises an electric heating wire heating disc, which is arranged at the lower end of the inner container 5. The electric heating wire heating disc is made of aluminum or other lightweight materials to reduce the weight of the product and facilitate carrying. In addition, when the air pressure inside the inner container 5 increases, the automatic pressure relief effect can be achieved through the cooperation of the exhaust mechanism and the exhaust silica gel 4.

[0027] The outer wall of the outer cover 7 and the opening of the cup body 1 is not in sealing fit, and there is a gap between them, which facilitates the airflow.

[0028] Further, as a preferred embodiment, the exhaust mechanism comprises an exhaust hole 8 and an exhaust groove 9, the lower end of the plug body 6 is provided with the exhaust groove 9, two exhaust holes 8 are provided on both sides of the exhaust groove 9, and the exhaust hole 8 communicates with the exhaust groove 9. The inside of the plug body 6 is hollow, the exhaust hole 8 communicates with the inside of the plug body 6, and the gas in the inner container 5 pushes the exhaust valve film 13 to enter the exhaust groove 9, then enters the gap between the upper surface of the exhaust silica gel 4 and the upper inner wall of the exhaust groove 9, and then enters the plug body 6 through the exhaust hole 8, pushes the diaphragm in the plug body 6, and then enters between the outer cover 7 and the plug body 6, and is discharged from the bottom of the outer cover 7. This arrangement can achieve timely pressure relief, and the airflow is discharged from the bottom of the outer cover 7, which can avoid the risk of scalding caused by hot airflow spraying onto the user's hand.

[0029] Further, as a preferred embodiment, a plurality of sawtooth edges 10 are provided on the outer wall of the exhaust silica gel 4, the exhaust silica gel 4 is arranged in the exhaust groove 9, and the sawtooth edges 10 cooperate with the inner wall of the exhaust groove 9. Referring to Figure 3 As shown, the sawtooth edges 10 are arranged in two circles and are distributed in an upper and lower manner, the sawtooth edges 10 can be in close contact with the inner wall of the exhaust groove 9, which is used to install the exhaust silica gel 4 in the exhaust groove 9 and is convenient for disassembly and removal for cleaning. The outer wall of the exhaust silica gel 4 is provided with a ring-shaped groove, and the sawtooth edges 10 are arranged in the ring-shaped groove.

[0030] Further, as a preferred embodiment, a plurality of strip grooves 11 are further provided on the outer wall of the exhaust silica gel 4, the strip grooves 11 are arranged along the axial direction of the exhaust silica gel 4, and the strip grooves 11 penetrate the sawtooth edges 10. Referring to Figure 3As shown, the strip-shaped groove 11 penetrates the sawtoothed edge 10, and the airflow in the cup body 1 can enter between the two circles of sawtoothed edges 10 and between the sawtoothed edge 10 and the annular groove side wall through the strip-shaped groove 11, so that the airflow can enter the exhaust hole 8. In use, after the exhaust silica gel 4 is installed in place, at least one circle of sawtoothed edges 10 is in contact with the inner wall of the exhaust groove 9, and the annular groove at least partially overlaps the exhaust hole 8, so that when the airflow enters the annular groove, it can enter the exhaust hole 8.

[0031] Further, as a preferred embodiment, it further includes a stand column 12, the upper inner wall of the exhaust groove 9 is provided with the stand column 12, the middle part of the exhaust silica gel 4 is provided with a through hole, the through hole is provided with an exhaust valve film 13, and the stand column 12 penetrates the exhaust valve film 13. Referring to Figure 2 As shown, the upper surface of the exhaust silica gel 4 has a gap with the upper inner wall of the exhaust groove 9, and after the airflow pushes the exhaust valve film 13, it can directly enter the gap, then enter the annular groove along the strip-shaped groove 11, then enter the exhaust hole 8, then enter the inside of the plug body 6, and after pushing open the diaphragm, it is discharged. After the pressure in the inner container 5 is balanced, the exhaust valve film 13 of the exhaust silica gel 4 ring restores and cooperates with the stand column 12 to seal, ensuring no water leakage. The stand column 12 has a columnar structure with a wide upper part and a narrow lower part.

[0032] Further, as a preferred embodiment, it further includes a temperature control module assembly 14, the inner wall of the cup body 1 is provided with the temperature control module assembly 14, and the temperature control module assembly 14 is connected with the electric heating wire heating disc. The temperature control module assembly 14 includes a PLC controller, the PLC controller is electrically connected with the electric heating wire heating disc, is used for controlling the electric heating wire heating disc to work, and the heating temperature of the electric heating wire heating disc can be set through the PLC controller, and generally can be set to 55°C, so that it can be drunk. The whole cup body 1 is a vacuum thermos cup, which can lock the water temperature for a long time. The temperature control module assembly 14 is light in weight and is fixed to the lower end inner wall of the cup body 1. The electric heating wire heating disc is welded on the lower surface of the inner container 5 and is used for heating the water in the inner container 5.

[0033] Further, as a preferred embodiment, it further includes a lead wire 16 and a Type-C female seat 15, the Type-C female seat 15 is arranged on the lower end inner wall of the cup body 1, and the Type-C female seat 15 is electrically connected with the temperature control module assembly 14 and the electric heating wire heating disc through the lead wire 16. The Type-C female seat 15 is selected to have a waterproof level and is designed to be arranged between the cup body 1 and the bottom of the inner container 5, which has enough space to be placed and does not affect the capacity of the inner container 5. The Type-C female seat 15 is fixed to the cup body 1 in a sealed manner, and the periphery is sealed by air-tight glue, so as to form a sealed interlayer between the inner container 5 and the cup body 1, which is convenient for vacuumizing later.

[0034] On the basis of the above-mentioned embodiments, the welding process of the cup body 1 is also given in the utility model, wherein the cup body 1 comprises a cup body and an outer tube bottom, for example:

[0035] Adopting laser vacuum melting: the cup body is inverted (the mouth part faces downward, and the bottom part faces upward), and is placed in a laser vacuum device. The vacuum hole reserved in the outer tube bottom is used to perform vacuum extraction treatment between the cup body and the inner container 5, so that the space between the cup body and the inner container 5 reaches a vacuum state to form a vacuum layer. The metal particles are melted by high temperature of the laser, and the metal is easy to flow to the vacuum hole after melting, and is cooled and restored to solid state, so as to seal the vacuum hole and isolate the vacuum layer. The material of the outer tube bottom is metal, and the metal particles are also metal. The same type of materials is fused and fixed, and whether the firmness or the strength is very good, and is not easy to be damaged.

[0036] Adopting vacuum welding of brazing / glass sealing material: the cup body is inverted (the mouth part faces downward, and the bottom part faces upward), and is placed in a high-temperature vacuum device. The vacuum hole reserved in the outer tube bottom is used to perform vacuum extraction treatment between the cup body and the inner container 5, so that the space between the cup body and the inner container 5 reaches a vacuum state to form a vacuum layer. The temperature is increased to make the brazing / glass sealing material reach a molten state, and the metal is easy to flow to the vacuum hole after melting, and is cooled and restored to solid state, so as to seal the vacuum hole and isolate the vacuum layer.

[0037] Among them, the vacuum adsorbent can be arranged in the outer tube bottom, and the inert gas between the cup body and the inner container 5 which is not extracted can be adsorbed after the vacuum adsorbent is activated. The vacuum adsorbent activation mode can adopt single-point laser, releases high temperature, and makes the gas adsorbent activated. Or the outer tube bottom is heated, or the whole cup body is placed in high temperature, and the gas adsorbent is activated.

[0038] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model. For those skilled in the art, it should be realized that the scheme obtained by equivalent replacement and obvious change of the utility model specification and drawing content should be included in the protection scope of the utility model.

Claims

1. A heated thermos, characterized in that, The cup body, the cup cover, the heating element and the exhaust silica gel, the upper end of the cup body is provided with the cup cover, the inside of the cup body is provided with an inner container, the lower end of the inner container is provided with the heating element, the cup cover includes a plug body, the lower end of the plug body is provided with an exhaust mechanism, the exhaust mechanism is provided with the exhaust silica gel.

2. The heated thermos as claimed in claim 1, wherein, The exhaust mechanism includes an exhaust hole and an exhaust groove, the lower end of the plug body is provided with the exhaust groove, two exhaust holes are arranged on the two sides of the exhaust groove, and the exhaust hole communicates with the exhaust groove.

3. The heated thermos as claimed in claim 2, wherein, A plurality of sawtooth edges are arranged on the outer wall of the exhaust silica gel, the exhaust silica gel is arranged in the exhaust groove, and the sawtooth edges are matched with the inner wall of the exhaust groove.

4. The heated thermos as claimed in claim 3, wherein, A plurality of strip grooves are arranged on the outer wall of the exhaust silica gel, the strip grooves are arranged along the axial direction of the exhaust silica gel, and the strip grooves penetrate the sawtooth edges.

5. The heated thermos as defined in claim 1, wherein, The upper surface of the exhaust silica gel and the upper inner wall of the exhaust groove have a gap.

6. The heated thermos as defined in claim 1, wherein, A column is further arranged, the upper inner wall of the exhaust groove is provided with the column, the middle part of the exhaust silica gel is provided with a through hole, the through hole is provided with an exhaust valve film, and the column penetrates the exhaust valve film.

7. The heated thermos as defined in claim 1, wherein, The heating element includes an electric heating wire heating disc, and the electric heating wire heating disc is arranged at the lower end of the inner container.

8. The heated thermos as defined in claim 7, wherein, A temperature control module assembly is further arranged, the inner wall of the cup body is provided with the temperature control module assembly, and the temperature control module assembly is connected with the electric heating wire heating disc.

9. The heated thermos as defined in claim 8, wherein, Lead wires and a Type-C female seat are further arranged, the Type-C female seat is arranged on the inner wall of the lower end of the cup body, and the Type-C female seat is connected with the temperature control module assembly and the electric heating wire heating disc through the lead wires.