Thermal three-layer metal sheet and temperature control type vacuum cup with thermal three-layer metal sheet

Abstract

The utility model relates to a hot three-layer metal sheet and a temperature control type vacuum cup with the hot three-layer metal sheet. The thermal three-layer metal sheet comprises a first active layer, a passive layer and a second active layer, and in the sheet layer direction, the first active layer and the second active layer are located at the two ends of the passive layer in the length or width direction respectively; in the thickness direction, the first active layer and the second active layer are located on the different sides of the passive layer in the thickness direction. The temperature control type heat preservation cup comprises a heat preservation cup inner wall and a heat preservation cup outer wall, a vacuum heat preservation layer is arranged between the heat preservation cup inner wall and the heat preservation cup outer wall, a plurality of hot three-layer metal sheets are arranged in the vacuum heat preservation layer, and one ends of the hot three-layer metal sheets are connected with the heat preservation cup inner wall. By means of the innovative design of the three layers of metal sheets, accurate temperature control and efficient heat preservation are achieved, the optimized heat preservation cup structure is combined, the heat preservation performance is improved, cost is reduced, and meanwhile the advantages of the metal sheets in the heat conduction or electric conduction aspect are fully exerted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vacuum cup, especially to a heat three -layer metal sheet and have temperature -controlled vacuum cup of heat three -layer metal sheet. BACKGROUND

[0002] With the increasing of people's living standards, the performance of the vacuum cup is more demanding. The traditional vacuum cup simply relies on vacuum insulation to achieve heat preservation, and there is a obvious short board in temperature control. In actual use, often face the problem of water temperature is too high to wait for a long time to cool down, or in cold environment, the water temperature drops rapidly, it is difficult to maintain the appropriate drinking temperature for a long time.

[0003] Some temperature-controlled vacuum cups on the market currently use electronic temperature control components, which can achieve precise temperature control to a certain extent, but the electronic components are easily damaged and require regular battery replacement, resulting in increased use cost. At the same time, the existing vacuum cup has many deficiencies in the design of the metal sheet structure, and cannot effectively realize the synergistic effect of temperature control and heat preservation. More importantly, the existing metal sheet structure is difficult to form a good contact surface under complex working conditions to ensure efficient conduction effect. For example, when one end of the metal sheet needs to be fixed and the other end needs to contact other components to achieve heat conduction or electrical conduction function, the conventional metal sheet cannot meet the requirements, which greatly limits the development and application of vacuum cup temperature control technology.

[0004] Take a commercially available vacuum cup filled with paraffin material (such as LKK 55℃) as an example, the specific heat capacity of paraffin c=2.1×103J / (kg·℃), the latent heat of phase change of paraffin L=2×105J / kg, and the density of paraffin is 0.9g / mL. At room temperature =25℃, it can be calculated that 50mL of paraffin can reduce 500mL of 100℃ water to about 92℃, which cannot be directly drunk; if you want to cool 500mL of 100℃ hot water to below 65℃, you need more than 300mL of paraffin material, combined with the volume occupied by the cup cover, cup body, etc. The actual water storage space utilization rate is less than 60%, which greatly reduces the use efficiency and causes inconvenience to the user. The performance of other materials is similar, and the temperature control effect is limited or the use efficiency is low; this is also the fundamental reason why this scheme is not widely used.

[0005] Chinese patent CN107997539A discloses a quick cooling vacuum cup, comprising an inner container, an outer container, an inner container temperature sensing conductive sheet fixed on the vacuum layer of the inner container, an outer container temperature adjusting and heat dissipating sheet fixed on the vacuum layer of the outer container, a temperature adjuster fixed on the outer container, and a linkage rod connected with the outer container temperature adjusting and heat dissipating sheet and the temperature adjuster. In the vacuum layer between the inner container and the outer container, there is a heat conducting double-layer metal sheet which automatically contacts or separates according to the set temperature. When the water temperature of the vacuum cup is too high, the heat in the vacuum cup can be quickly conducted to the outside of the cup. When the temperature reaches the set temperature, the bimetallic sheet of the vacuum layer of the vacuum cup automatically separates, so that the temperature in the vacuum cup remains constant. The contact area between the bimetallic sheet and the cup wall in the patent is small, which affects the heat conduction effect.

[0006] Therefore, it is urgent to develop a temperature control type vacuum cup with simple structure, low cost, good temperature control effect and good heat conduction or electrical conduction performance. Utility model content

[0007] The utility model discloses a kind of hot three-layer metal sheets and temperature control type vacuum cups with hot three-layer metal sheet for solving the problems such as poor temperature control of existing vacuum cup, complex structure, high cost and unreasonable metal sheet structure.The utility model realizes accurate temperature control and high-efficiency heat preservation by innovative hot three-layer metal sheet design, improves heat preservation performance in combination with optimized vacuum cup structure, reduces cost, creates convenient and comfortable use experience for user, and fully plays the advantages of metal sheet in heat conduction or electrical conduction.

[0008] The purpose of the utility model can be realized by the following technical solutions:

[0009] A kind of hot three-layer metal sheet, including first active layer, passive layer and second active layer,

[0010] In sheet layer direction, the first active layer and the second active layer are respectively located at both ends of passive layer along length or width direction;

[0011] In thickness direction, the first active layer and the second active layer are respectively located at the opposite sides of passive layer in thickness direction.

[0012] In an embodiment of the utility model, the cross section of the passive layer is Z-shaped, and the first active layer and the second active layer are respectively connected with the upper and lower ends of the Z-shaped passive layer.

[0013] In an embodiment of the utility model, the passive layer is composed of first bending part, connecting part and second bending part, and the first bending part and the second bending part are respectively connected with the upper and lower ends of the connecting part,

[0014] The first bending part is connected with the lower side of the first active layer, and the second bending part is connected with the upper side of the second active layer.

[0015] As a preferred technical solution, the first bending part and the second bending part are subjected to bending treatment in advance before being connected with the first active layer or the second active layer, and after the first bending part and the second bending part are combined with the first active layer or the second active layer, the whole presents a flat structure in the sheet layer direction, and the unique structural design advantage is obvious. When one end is fixed and the other end is in contact with a surface (such as the outer wall of a vacuum cup for heat dissipation and temperature control), the first active layer or the second active layer is bent in different directions to form parallel surfaces, so that the contact end is closely attached to the contact surface, a good heat-conducting contact surface is formed, and the heat conduction efficiency is greatly improved.

[0016] As a preferred technical solution, the first bending part and the second bending part are connected with the first active layer or the second active layer through a hot pressing process, the hot pressing temperature is 400 DEG C to 600 DEG C, and the pressure is 5 MPa to 10 MPa. Through this process connection, the three layers can be tightly combined, and the heat transfer efficiency is improved.

[0017] In one embodiment of the present application, the material of the first active layer and the second active layer is a high-thermal-expansion-coefficient metal, and the material of the passive layer is a low-thermal-expansion-coefficient metal.

[0018] The material of the first active layer and the second active layer has opposite temperature characteristics with the material of the passive layer, that is, at a predetermined temperature, one alloy has a large thermal expansion coefficient, and the other alloy has a small thermal expansion coefficient, so that the alloy side with a large expansion coefficient is bent to the alloy side with a small expansion coefficient.

[0019] In one embodiment of the present application, the material of the first active layer and the second active layer is selected from the following alloys: nickel-titanium alloy, copper-based alloy, iron-based alloy, aluminum-based alloy, etc.

[0020] As a preferred technical solution, the copper-based alloy includes brass and bronze, etc.

[0021] The iron-based alloy includes carbon steel and stainless steel, etc.

[0022] The aluminum-based alloy includes 6061 aluminum alloy and 7075 aluminum alloy, etc.

[0023] In one embodiment of the present application, the thickness of the first active layer and the second active layer is 0.2-1mm, the width is 0.8-10mm, and the height is 100-150mm. Such thickness can not only ensure the sensitive response of the first active layer or the second active layer to temperature change, but also ensure the structural strength.

[0024] In an embodiment of the utility model, the material of passive layer is selected from the following metals or alloys: pure copper, oxygen-free copper, silver, pure aluminum, aluminum alloy, iron, etc., which have good heat conduction performance and can quickly transfer heat.

[0025] As a preferred technical solution, the aluminum alloy includes 1050 pure aluminum and 3003 rust-proof aluminum, etc.

[0026] The high-thermal-conductivity alloy steel includes chromium-containing high-thermal-conductivity alloy steel, etc.

[0027] In an embodiment of the utility model, the thickness of passive layer is 0.5-0.7 mm, the width is 10-15 mm, and the height is 100-150 mm.

[0028] In addition, the utility model also provides a temperature control type vacuum cup with hot three-layer metal sheet, which comprises an inner wall and an outer wall of the vacuum cup, a vacuum insulation layer is arranged between the inner wall and the outer wall of the vacuum cup, a plurality of hot three-layer metal sheets are arranged in the vacuum insulation layer, one end of the hot three-layer metal sheet is connected with the inner wall of the vacuum cup,

[0029] When the temperature control type vacuum cup is in a cooling state, there is a gap between the other end of the hot three-layer metal sheet and the outer wall of the vacuum cup, and when the temperature control type vacuum cup is in a heat dissipation state, the other end of the hot three-layer metal sheet is connected with the outer wall of the vacuum cup.

[0030] As a preferred technical solution, the gap is 5-8 mm.

[0031] In an embodiment of the utility model, the temperature control type vacuum cup further comprises a vacuum cup cover, and a temperature display module is arranged on the vacuum cup cover.

[0032] In an embodiment of the utility model, the temperature display module comprises:

[0033] An active temperature display assembly comprises a liquid crystal display screen, a temperature sensor and a battery, the liquid crystal display screen is arranged on the surface layer of the vacuum cup cover, the temperature sensor and the battery are arranged on the inner side of the vacuum cup cover, the liquid crystal display screen is connected with the temperature sensor, the temperature sensor and the liquid crystal display screen are both connected with the battery, the temperature sensor is used for collecting water temperature, and the liquid crystal display screen is used for displaying water temperature.

[0034] A passive temperature display assembly comprises a thermocouple temperature sensor, which directly indicates temperature by using the deformation of two different metals in the thermocouple temperature sensor caused by different expansion degrees under heat, without additional power supply and maintenance.

[0035] In an embodiment of the utility model, the heat preservation cup outer wall is equipped with a safety valve, the safety valve is used for pressure relief under the condition such as abnormal heating of temperature control type heat preservation cup, prevents explosion from happening.

[0036] As a preferred technical scheme, the heat preservation cup outer wall is a concave-convex shape.

[0037] The working principle of the utility model is as follows:

[0038] The heat three-layer metal sheet in the utility model can be regarded as the superposition of double metal sheets, and the working principle is the same as that of double metal sheets, the double-layer metal sheet is pasted together by using two kinds of metals with different thermal expansion coefficients, and when the temperature changes, the double-layer metal sheet will produce bending deformation, the curvature change and temperature relationship calculation is usually based on thermal expansion theory and material mechanics principle, the following is a general calculation method and related description:

[0039] Basic principle formula: for the double-layer metal sheet, the relationship between the curvature radius R and the temperature change amount ΔT when the temperature changes conforms to the formula:

[0040]

[0041] Wherein, alpha1 and alpha2 are the thermal expansion coefficients of two kinds of metals respectively, E1 and E2 are the elastic modulus of two kinds of metals respectively, and h is the total thickness of the double-layer metal sheet.

[0042] The curvature k and the curvature radius R are inversely related, that is, k = 1 / R.

[0043] The specific calculation steps are as follows:

[0044] (1) determine material parameters: by consulting material manual or related information, obtain the thermal expansion coefficients alpha1, alpha2 and elastic modulus E1, E2 of two kinds of metals.

[0045] (2) measure the size of the double-layer metal sheet: measure the total thickness h of the double-layer metal sheet with a caliper and other tools.

[0046] (3) calculate the temperature change amount: determine the initial temperature T1 and the final temperature T2, and calculate ΔT = T2-T1.

[0047] (4) calculate the curvature: put the above parameters into the formula to calculate the curvature k.

[0048] The above calculation is based on the ideal situation, and in actuality, the double-layer metal sheet may be affected by manufacturing process, boundary condition and other factors, if more accurate results are needed, it may need to be calibrated through experiment or adopt finite element analysis method.

[0049] In general, the double metal sheet is flat at the initial temperature.

[0050] The bimetallic strip is made of two or more layers of metals with different thermal expansion coefficients firmly combined. In the manufacturing process, the bimetallic strip is usually adjusted to be flat at a certain initial temperature, which is also called the reference temperature or the equilibrium temperature of the bimetallic strip. For example, a common bimetallic thermometer, when not heated or at the initial temperature of calibration, the bimetallic strip is flat, and the pointer points to the initial scale. Like a bimetallic strip composed of copper and iron, it is usually flat at room temperature (such as 25℃), and when the temperature rises or falls, due to the different thermal expansion coefficients of copper and iron, it will bend.

[0051] However, if the bimetallic strip has internal stress during manufacturing, or is affected by external forces, environmental factors, etc., it may not be completely flat at the initial temperature.

[0052] The calculation of the amount of heat dissipated by the metal material vacuum cup shell to the air can usually be based on Newton's cooling law, the formula is: Q = hAΔTt, where: Q is the amount of heat dissipated (unit: Joule J): refers to the total amount of heat dissipated by the metal to the air in a certain time; h is the surface heat transfer coefficient (unit: W / (m 2 ·K)): depends on the metal surface condition, air flow state, etc. For example, when air is naturally convected, the h of a smooth metal surface is generally 5-25 W / (m 2 ·K); when forced convection, h can reach 25-250 W / (m 2 ·K); A is the contact area between the metal and the air (unit: m 2 ): For regular shaped metals, such as cuboids, if the length, width, and height are a, b, and c respectively, then the contact area A = 2(ab + bc + ac); ΔT is the temperature difference between the metal and the air (unit: K or ℃): For example, the metal temperature T1 = 80℃, the air temperature T2 = 20℃, then ΔT = T1-T2 = 60℃; t is the heat dissipation time (unit: seconds s): refers to the duration of the metal heat dissipation to the air.

[0053] If the influence of internal heat conduction on heat dissipation is considered, the heat conduction equation Q = -kAdxdT also needs to be solved, where k is the thermal conductivity of the metal, and dxdT is the temperature gradient.

[0054] As can be seen from the above disclosure, the heat dissipation area of the vacuum cup shell and the heat conducted by the vacuum cup to the air are positively correlated, so the vacuum cup shell needs to be designed in a shape with concave and convex shapes.

[0055] The utility model discloses a temperature control type vacuum cup, the product design when determining the set temperature of temperature control type vacuum cup is, when the temperature in temperature control type vacuum cup is higher than the set temperature (the set temperature range is 45~95 degrees), the heat three layer metal sheet occurs deformation and the contact of vacuum cup outer wall, realizes the heat dissipation function through increasing the heat dissipation area, when the temperature in temperature control type vacuum cup is lower than the set temperature, the heat three layer metal sheet restores flat, realizes the vacuum cup outer wall through the heat three layer metal sheet and disconnects, thereby the cut-off heat conduction, the realization of set temperature and metal sheet material, shape, size have relations, make into finished product after fixedly unchangeable, thereby the temperature control, heat dissipation and heat preservation of the temperature control type vacuum cup inner beverage.

[0056] The utility model discloses a temperature control type vacuum cup, the product design when determining the set temperature of temperature control type vacuum cup is, when the temperature in temperature control type vacuum cup is higher than the set temperature (the set temperature range is 45~95 degrees), the heat three layer metal sheet occurs deformation and the contact of vacuum cup outer wall, realizes the heat dissipation function through increasing the heat dissipation area, when the temperature in temperature control type vacuum cup is lower than the set temperature, the heat three layer metal sheet restores flat, realizes the vacuum cup outer wall through the heat three layer metal sheet and disconnects, thereby the cut-off heat conduction, the realization of set temperature and metal sheet material, shape, size have relations, make into finished product after fixedly unchangeable, thereby the temperature control, heat dissipation and heat preservation of the temperature control type vacuum cup inner beverage.

[0057] Compared with the prior art, the utility model has the advantages shown as follows:

[0058] (1) precise temperature control: the first active layer and the second active layer in the heat three layer metal sheet can deform according to the change of water temperature, thereby adjusting the heat transfer efficiency, when the water temperature is too high, the deformation of the first active layer and the second active layer makes the heat three layer metal sheet contact with the outer wall to increase heat dissipation, realizing precise temperature control, and ensuring that the water temperature always remains within the appropriate drinking range.

[0059] (2) high-efficiency heat preservation: the combination of the vacuum heat preservation layer and the heat three layer metal sheet effectively reduces heat loss and prolongs heat preservation time, and compared with the traditional vacuum cup, the heat preservation performance is significantly improved.

[0060] (3) simple structure and low cost: the heat three layer metal sheet has reasonable structural design and relatively simple manufacturing process, thereby reducing production cost. Meanwhile, the overall structure of the vacuum cup is not complex, the number of parts is reduced, and cost is further reduced.

[0061] (4) convenient to use: the temperature display module arranged on the cup cover, whether active liquid crystal display or passive bimetallic sheet display, can help users know the water temperature at any time without additional measuring tools, and use is more convenient. Moreover, the passive display component is maintenance-free, reducing the use cost and trouble of users.

[0062] (5) good heat conduction performance: the parallel faces formed by the unique bending structure of the heat three layer metal sheet can realize efficient heat conduction when one end is fixed and the other end contacts and conducts heat, thereby providing strong support for the temperature control function of the vacuum cup. BRIEF DESCRIPTION OF DRAWINGS

[0063] Fig. 1It is the cross section shape schematic view of the hot three-layer metal sheet in the utility model at threshold temperature.

[0064] Fig. 2 It is the cross section shape schematic view of the hot three-layer metal sheet in the utility model above threshold temperature.

[0065] Fig. 3 It is the cross section structure schematic view of the temperature control type vacuum cup in the utility model in the heat preservation state.

[0066] Fig. 4 It is the cross section structure schematic view of the temperature control type vacuum cup in the utility model in the cooling state.

[0067] Fig. 5 It is the outer wall heat dissipation structure schematic view of the temperature control type vacuum cup in the utility model.

[0068] The number of the drawing is explained: 1, first active layer, 2, passive layer, 3, second active layer, 4, heat bending direction, 5, vacuum cup inner wall, 6, vacuum cup outer wall, 7, hot three-layer metal sheet, 8, gap, 9, first bending part, 10, connecting part, 11, second bending part, 12, vacuum heat preservation layer. DETAILED DESCRIPTION

[0069] The utility model will be described in detail below in combination with the drawings and specific embodiments. The embodiment is implemented on the premise of the technical scheme of the utility model, and detailed implementation mode and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.

[0070] It should be noted that: similar signs and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0071] In the description of the utility model, it should be explained that, the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, 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, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0072] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0073] Some embodiments of the utility model are described in detail below in conjunction with the drawings.In the case of no conflict, the following examples and features in examples can be combined with each other.

[0074] Example 1

[0075] Referring to Figs. 1-2 The utility model provides a kind of hot three-layer metal sheet, including first active layer 1, passive layer 2 and second active layer 3,

[0076] In sheet layer direction, the first active layer 1 and second active layer 3 are respectively located at the two ends of passive layer 2 along length or width direction;

[0077] In thickness direction, the first active layer 1 and second active layer 3 are respectively located at the opposite side of passive layer 2 in thickness direction.

[0078] In an embodiment of the utility model, the cross section of passive layer 2 is Z type, and the first active layer 1 and second active layer 3 are respectively connected with the upper and lower ends of Z type passive layer 2.

[0079] In an embodiment of the utility model, passive layer 2 is composed of first bending part 9, connecting part 10 and second bending part 11, and the first bending part 9 and second bending part 11 are respectively connected with the upper and lower ends of connecting part 10,

[0080] The first bending part 9 is connected with the lower side of first active layer 1, and the second bending part 11 is connected with the upper side of second active layer 3.

[0081] As a preferred technical solution, the first bending part 9 and second bending part 11 are bent before being connected with the first active layer 1 or second active layer 3, and after being combined with the first active layer 1 or second active layer 3, the whole presents flat structure in sheet layer direction.

[0082] Preferably, the first bending part 9 and the second bending part 11 are connected with the first active layer 1 or the second active layer 3 by a hot-pressing process, the hot-pressing temperature is 400-600 DEG C, and the pressure is 5-10 MPa, so that the three layers are tightly combined and the heat transfer efficiency is improved.

[0083] In an embodiment of the utility model, the material of the first active layer 1 and the second active layer 3 is brass, and the material of the passive layer 2 is iron.

[0084] In an embodiment of the utility model, the thickness of the first active layer 1 and the second active layer 3 is 0.8-1 mm, the width is 0.8-10 mm, and the height is 100-150 mm.

[0085] In an embodiment of the utility model, the thickness of the passive layer 2 is 0.5-0.7 mm, the width is 10-15 mm, and the height is 100-150 mm.

[0086] In addition, the embodiment also provides a preparation method of the heat three-layer metal sheet, and the specific steps are as follows:

[0087] The material iron of the passive layer 2 is processed into the required shape and size, and the contact part of the two ends of the passive layer 2 in contact with the first active layer 1 and the second active layer 3 is bent, and the first active layer 1, the passive layer 2 and the second active layer 3 are stamped into the required shape by using a die.

[0088] Then, the first active layer 1 and the second active layer 3 are processed according to the designed thickness and shape.

[0089] The first active layer 1 and the second active layer 3 are connected with the passive layer 2 by a hot-pressing process, and the three layers are tightly combined at a temperature of 400-600 DEG C and a pressure of 5-10 MPa, so that the heat three-layer metal sheet 7 is formed.

[0090] Example 2

[0091] Referring to Figs. 3-5 The embodiment provides a temperature-controlling type vacuum cup with a heat three-layer metal sheet, which comprises an inner wall 5 and an outer wall 6, a vacuum heat preservation layer 12 is arranged between the inner wall 5 and the outer wall 6, a plurality of heat three-layer metal sheets 7 are arranged in the vacuum heat preservation layer 12, one end of the heat three-layer metal sheet 7 is connected with the inner wall 5,

[0092] When the temperature-controlling type vacuum cup is in a cooling state, a gap 8 is arranged between the other end of the heat three-layer metal sheet 7 and the outer wall 6, and when the temperature-controlling type vacuum cup is in a heat dissipation state, the other end of the heat three-layer metal sheet 7 is connected with the outer wall 6.

[0093] In an embodiment of the utility model, the temperature control type vacuum cup further comprises a vacuum cup cover, and a temperature display module is arranged on the vacuum cup cover.

[0094] In an embodiment of the utility model, the temperature display module comprises:

[0095] The active temperature display assembly comprises a liquid crystal display screen, a temperature sensor and a battery, the liquid crystal display screen is arranged on the surface layer of the vacuum cup cover, the temperature sensor and the battery are arranged on the inner side of the vacuum cup cover, the liquid crystal display screen is connected with the temperature sensor, the temperature sensor and the liquid crystal display screen are both connected with the battery, the temperature sensor is used for collecting water temperature, and the liquid crystal display screen is used for displaying water temperature.

[0096] The passive temperature display assembly comprises a thermocouple temperature sensor, and the thermocouple temperature sensor is used for directly indicating temperature by using the deformation of two different metals caused by different expansion degrees under heat, and the passive temperature display assembly does not need additional power supply and is maintenance-free.

[0097] In an embodiment of the utility model, the vacuum cup outer wall 6 is provided with a safety valve, and the safety valve is used for pressure relief under the condition that the temperature control type vacuum cup is abnormally heated, so as to prevent explosion.

[0098] In an embodiment of the utility model, the vacuum cup outer wall 6 has a concave-convex shape.

[0099] In an embodiment of the utility model, the material of the vacuum cup inner wall 5 and the vacuum cup outer wall 6 is stainless steel material, the diameter of the vacuum cup inner wall 5 is 50 mm, the diameter of the vacuum cup outer wall 6 is 70 mm, and the volume of the vacuum cup is 500 ml.

[0100] In addition, the embodiment also provides an assembling method of the temperature control type vacuum cup with the hot three-layer metal sheet, and the specific steps are as follows:

[0101] The hot three-layer metal sheet 7 prepared in the embodiment 1 is installed around the vacuum cup inner wall 5. The vacuum heat insulation layer is formed by filling the vacuum heat insulation material between the vacuum cup inner wall 5 and the vacuum cup outer wall 6. The temperature display module is installed on the vacuum cup cover, the temperature sensor of the active temperature display assembly is installed at a suitable position, so that the temperature sensor can accurately collect water temperature, and the battery and the liquid crystal display screen are connected; the passive bimetallic strip temperature sensor is installed on the display area of the cover, so that the temperature sensor can work normally and display temperature clearly.

[0102] When hot water is poured into the temperature-controlled vacuum cup, the hot three-layer metal sheet 7 starts to work. If the water temperature is within the set temperature range, the hot three-layer metal sheet 7 remains relatively stable, mainly through the vacuum insulation layer for heat preservation. When the water temperature is higher than the set temperature, the shape memory alloy of the first active layer 1 and the second active layer 3 deforms due to the increase in temperature, so that the contact area of the hot three-layer metal sheet 7 with the outer wall 6 of the vacuum cup increases, and the heat dissipation is accelerated, realizing temperature control. The temperature display module works in real time. The active liquid crystal display screen collects water temperature data through the temperature sensor and displays it. The passive bimetallic strip temperature sensor deforms according to the change of water temperature, and indicates the current water temperature through the pointer or scale, so that the user can grasp the water temperature at any time, so as to drink in time.

[0103] In this embodiment, the temperature-controlled vacuum cup is set to have an action temperature of 65°C, and 500 ml of 95°C hot water is added. The test data are as follows: the time for the hot water to cool from 95°C to 65°C is 0.3 hours, and the time for the hot water to be preserved from 65°C to 40°C is 9 hours.

[0104] Example 3

[0105] This embodiment provides a temperature-controlled vacuum cup with a hot three-layer metal sheet, which is the same as example 2 except that the volume of the vacuum cup is 350 ml.

[0106] In this embodiment, the temperature-controlled vacuum cup is set to have an action temperature of 55°C, and 350 ml of 95°C hot water is added. The test data are as follows: the time for the hot water to cool from 95°C to 55°C is 0.2 hours, and the time for the hot water to be preserved from 55°C to 40°C is 8 hours.

[0107] Example 4

[0108] This embodiment provides a temperature-controlled vacuum cup with a hot three-layer metal sheet, which is the same as example 2 except that the volume of the vacuum cup is 700 ml.

[0109] In this embodiment, the temperature-controlled vacuum cup is set to have an action temperature of 80°C, and 700 ml of 95°C hot water is added. The test data are as follows: the time for the hot water to cool from 95°C to 80°C is 0.2 hours, and the time for the hot water to be preserved from 80°C to 40°C is 10 hours.

[0110] Comparative Example 1

[0111] This comparative example provides a common stainless steel vacuum cup, which is commercially available and has a specific model of Fuguang 500ML 304 vacuum cup.

[0112] Comparative Example 2

[0113] The comparative example provides an ordinary stainless steel vacuum cup, which is derived from the market, and the specific model is Suopu 700ML 304 vacuum cup.

[0114] Comparative Example 3

[0115] The comparative example provides an ordinary stainless steel vacuum cup, which is derived from the market, and the specific model is Xino 350ML 304 vacuum cup.

[0116] The ordinary stainless steel vacuum cups provided by Comparative Examples 1-3 and the temperature-controlled vacuum cups prepared in Examples 2-4 are tested under the same external conditions, with the same temperature and weight of hot water added, and the measurement data is shown in Table 1:

[0117] Table 1 Measurement data of the ordinary stainless steel vacuum cup provided by Comparative Example 1 and the temperature-controlled vacuum cups prepared in Examples 2-4

[0118]

[0119] From the data in Table 1, it can be seen that the temperature-controlled vacuum cups prepared in Examples 2-4 are significantly shorter in time from 95℃ hot water cooling to the set temperature, and significantly longer in time from the set temperature hot water insulation to 40℃ (suitable drinking temperature) than the ordinary stainless steel vacuum cups provided by Comparative Examples 1-3 under the same external conditions, with the same temperature and weight of hot water added.

[0120] Comparative Example 4

[0121] The comparative example provides an intelligent cooling type vacuum cup, which is derived from the market, and the specific model is 500ml LKK 55℃ vacuum cup.

[0122] Comparative Example 5

[0123] The comparative example provides an intelligent cooling type vacuum cup, which is derived from the market, and the specific model is 350ml LKK 55℃ vacuum cup.

[0124] Comparative Example 6

[0125] The comparative example provides an intelligent cooling type vacuum cup, which is derived from the market, and the specific model is 700ml LKK 55℃ vacuum cup.

[0126] The inner layer of the inner and outer wall of the intelligent cooling type vacuum cup provided by Comparative Example 4-6 is filled with paraffin and other materials, which can achieve the purpose of accelerating cooling and prolonging heat preservation by using the heat absorption characteristics of phase change of paraffin. However, using paraffin as a temperature control material, in order to achieve the required heat absorption, the use amount of paraffin material needs to be increased, thus increasing the volume and weight of the vacuum cup. The following is a comparison of the volume and weight of the intelligent cooling type vacuum cup provided by Comparative Example 4-6 and the temperature control type vacuum cup prepared by Examples 2-4 with the same volume. The data is shown in Table 2.

[0127] Table 2 Comparison data of volume and weight of intelligent cooling type vacuum cup provided by Comparative Example 4-6 and temperature control type vacuum cup prepared by Examples 2-4

[0128]

[0129] As can be seen from the comparison data in Table 2, the volume and weight of the intelligent cooling type vacuum cup provided by Comparative Example 4-6 are larger than those of the temperature control type vacuum cup prepared by Examples 2-4 with the same volume. The increased volume and weight are inconvenient for carrying and using the vacuum cup.

[0130] The above description of the examples is for the convenience of the ordinary skilled person in the art to understand and use the utility model. Those skilled in the art can easily make various modifications to these examples, and apply the general principles described herein to other examples without creative labor. Therefore, the utility model is not limited to the above examples, and those skilled in the art can make improvements and modifications within the scope of the utility model without departing from the scope of the utility model.

Claims

1. A hot three-layer metal sheet, characterized in that, The heat tri-layer metal sheet comprises a first active layer (1), a passive layer (2) and a second active layer (3). The first active layer (1) and the second active layer (3) are respectively located at the two ends of the passive layer (2) along the length or width direction in the sheet direction. The first active layer (1) and the second active layer (3) are respectively located at the opposite sides of the passive layer (2) in the thickness direction.

2. A thermal tri-metallic strip as claimed in claim 1, wherein, The cross section of the passive layer (2) is Z-shaped, and the first active layer (1) and the second active layer (3) are respectively connected with the upper and lower ends of the Z-shaped passive layer (2).

3. A thermal tri-metallic strip as claimed in claim 2, wherein, The passive layer (2) is composed of a first bending part (9), a connecting part (10) and a second bending part (11), and the first bending part (9) and the second bending part (11) are respectively connected with the upper and lower ends of the connecting part (10), The upper side of the first bending part (9) is connected with the lower side of the first active layer (1), and the lower side of the second bending part (11) is connected with the upper side of the second active layer (3).

4. A thermal tri-metallic strip as defined in claim 1, wherein, The materials of the first active layer (1) and the second active layer (3) are high-thermal-expansion-coefficient metals, and the material of the passive layer (2) is low-thermal-expansion-coefficient metal.

5. A thermal tri-metallic strip as claimed in claim 4, wherein, The materials of the first active layer (1) and the second active layer (3) are selected from the following alloys: nickel-titanium alloy, copper-based alloy, iron-based alloy, aluminum-based alloy; The material of the passive layer (2) is selected from the following metals or alloys: pure copper, oxygen-free copper, silver, pure aluminum, aluminum alloy, iron.

6. A thermal tri-metallic strip as defined in claim 1, wherein, The thickness of the first active layer (1) and the second active layer (3) ranges from 0.2 to 1 mm, the width ranges from 0.8 to 10 mm, and the height ranges from 100 to 150 mm. The thickness of the passive layer (2) is 0.5-0.7 mm, the width is 10-15 mm, and the height is 100-150 mm.

7. A temperature-controllable vacuum cup with a thermal three-layer metal sheet, characterized in that, The heat tri-layer metal sheet comprises a first active layer (1), a passive layer (2) and a second active layer (3). When the temperature-controlled vacuum cup is in a cooling state, there is a gap (8) between the other end of the heat tri-layer metal sheet (7) and the outer wall (6) of the vacuum cup, and when the temperature-controlled vacuum cup is in a heat dissipation state, the other end of the heat tri-layer metal sheet (7) is connected with the outer wall (6) of the vacuum cup.

8. The temperature-controlled vacuum cup with a thermal three-layer metal sheet according to claim 7, characterized in that, The temperature-controlled vacuum cup further comprises a vacuum cup cover, and a temperature display module is arranged on the vacuum cup cover.

9. The temperature-controlled vacuum cup with a thermal three-layer metal sheet according to claim 8, characterized in that, The temperature display module comprises: An active temperature display component, which comprises a liquid crystal display screen, a temperature sensor and a battery, the liquid crystal display screen is arranged on the surface layer of the vacuum cup cover, the temperature sensor and the battery are arranged on the inner side of the vacuum cup cover, the liquid crystal display screen is connected with the temperature sensor, the temperature sensor and the liquid crystal display screen are both connected with the battery, the temperature sensor is used for collecting water temperature, and the liquid crystal display screen is used for displaying water temperature. Passive temperature display component: it includes thermocouple temperature sensor, utilizes the deformation of two different metals in thermocouple temperature sensor to directly indicate temperature, does not need additional power supply, and is maintenance-free.

10. The temperature-controlled vacuum cup with a thermal three-layer metal sheet according to claim 7, characterized in that, The outer wall (6) of the cup is provided with a safety valve.

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