Portable constant-temperature vacuum cup

Abstract

The utility model relates to a portable constant-temperature vacuum cup, and belongs to the technical field of small household appliances. The heat preservation cup comprises a heat preservation cup body and a base detachably connected with the bottom of the heat preservation cup body, the heat preservation cup body is electrically connected with the base through a coupler, the heat preservation cup body comprises a cup shell and a containing bin located in the cup shell and used for containing liquid, and an induction heating body and a temperature probe used for sensing the liquid temperature are arranged at the bottom of the containing bin. The induction heating body is in direct contact with liquid in the containing bin, and an induction coil is arranged below the induction heating body and located in the cup shell. A control circuit and a power supply module electrically connected with the control circuit are arranged in the base, and a boosting module is arranged in the control circuit; and the control circuit is electrically conducted with the induction coil and the temperature probe through the coupler. According to the utility model, the induction coil is arranged in the vacuum cup body, so that the induction coil is closer to the induction heating body to reduce energy loss; the boost module is adopted to improve working voltage, reduce electric energy loss of a coupler contact part, and generally improve inductance heating efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to small household electrical appliances technical field, concretely relates to a portable constant temperature vacuum cup. BACKGROUND

[0002] The vacuum cup is a common appliance in daily life, and the common vacuum cup on the market has single function, utilizes the physical temperature insulation and insulation means to prolong the insulation time. Some are powered by lithium batteries or external power supply, and heat energy is converted from electric energy to provide heat for the vacuum cup to achieve the constant temperature insulation effect. For the vacuum cup powered by the power supply, the heating efficiency of the PTC or resistance type heating component is relatively low, and the heating performance of the PTC or resistance type heating component will obviously decay with the use time, and the inductance heating mode can slow down the decay of heating and improve the heating efficiency, so the inductance heating mode is used more and more in the current vacuum cup, in addition, the split type structure design of the cup body and the base is also more convenient for users to use.

[0003] For example, the announcement number is CN222828393U, a split type portable inductance heating vacuum cup, it includes cup body and base, cup body and base are detachably connected through screwing structure;The screwing structure is respectively arranged on the screw groove and the screw head on the cup body and the base;The cup body has a container, the container bottom is provided with an inductive heating body containing an iron-based material and a temperature probe for sensing liquid temperature, the inductive heating body is in direct contact with the liquid in the container, and the temperature probe is electrically connected with the upper coupling device on the bottom of the cup body;The base is provided with a sheet-shaped induction coil, a control module and a power module, the lower coupling device is electrically connected with the upper coupling device on the base, and the induction coil, the power module and the lower coupling device are electrically connected with the control module;The inductive heating body is located directly above the induction coil. The above structure can realize the constant temperature effect on the basis of convenient use, but in the production and use process, it is found that because the induction coil is located in the base, the induced magnetic field generated thereby needs to pass through the base shell and the cup body shell and other obstacles, which will lose part of the energy and affect the heating efficiency, at the same time, the structure of the base shell and the cup body shell makes it difficult to reduce the distance between the induction coil and the inductive heating body of the cup body, which also affects the inductance heating efficiency. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a portable constant temperature vacuum cup to improve the inductance heating efficiency.

[0005] The utility model adopts the following technical scheme:

[0006] A portable constant temperature vacuum cup, including a vacuum cup body and a base detachably connected with the bottom of the vacuum cup body, the vacuum cup body and the base are electrically connected through a coupling device,

[0007] The thermos cup body comprises a cup shell and a containing bin for containing liquid in the cup shell, the containing bin is provided with an inductive heating body and a temperature probe for sensing liquid temperature at the bottom, the inductive heating body is directly contacted with the liquid in the containing bin, an induction coil is arranged below the inductive heating body, and the induction coil is arranged in the cup shell;

[0008] The base is provided with a control circuit and a power module electrically connected with the control circuit, and the control circuit has a voltage boosting module;

[0009] The control circuit is electrically connected with the induction coil and the temperature probe through a coupler.

[0010] Further, the coupler is two groups of electrode contacts matched with each other, each group of electrode contacts is four and is distributed in a rectangular array, wherein the temperature probe is electrically connected with one pair of electrode contacts in diagonal direction at two ends, and the induction coil is electrically connected with another pair of electrode contacts in diagonal direction at two ends.

[0011] Further, the thermos cup body and the base are detachably connected through a screwing structure, and one group of the electrode contacts is a spring probe.

[0012] Further, the cup shell is further provided with a heat preservation body between the inductive heating body and the induction coil for reducing heat dissipation of the thermos cup body.

[0013] Further, the heat preservation body is aerogel felt, aluminum silicate fiber blanket or silica gel.

[0014] Further, the sidewall of the cup shell has an annular vacuum cavity for heat preservation and heat insulation.

[0015] Compared with the prior art, the utility model has the beneficial effects:

[0016] By arranging the induction coil in the thermos cup body, the induction coil is closer to the inductive heating body to reduce the electric energy loss, the working voltage is improved by arranging the voltage boosting module, the working current is reduced, and the electric energy loss is reduced by the contact part of the coupler;

[0017] By arranging each group of couplers in a rectangular array, the two wiring ends of the corresponding components are arranged on the diagonal lines of the rectangle, the relative distance of the wiring ends is increased, and the risk of short circuit of the wiring ends caused by liquid conduction is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the appearance structure of the portable constant-temperature thermos cup according to an embodiment of the utility model;

[0019] Figure 2 is Figure 1 a longitudinal sectional structure schematic view;

[0020] Figure 3 is a structure schematic view of the connecting place of the vacuum cup body and the base in the embodiment of the utility model;

[0021] Figure 4 is the schematic block diagram of the circuit structure in the embodiment of the utility model.

[0022] Mark explanation: 100, vacuum cup body;101, temperature probe;102, induction coil;103, heat preservation body;110, cup shell;111, induction heating body;112, vacuum cavity;120, containing bin;130, cup cover;200, base;300, control circuit;301, boost module;400, power module;500, coupler;501, electrode contact;600, screw buckle structure. DETAILED DESCRIPTION

[0023] In order to make the utility model more clearly, the portable constant temperature vacuum cup of the utility model is further explained below in conjunction with the drawings, and the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] As Figures 1 to 4 Indicated, a kind of portable constant temperature vacuum cup, it has a vacuum cup body 100, the upper portion opening place of which is screwed with a cup cover 130, its lower part can be connected with a base 200, base 200 as the power supply and control component of the vacuum cup can be separated and connected with vacuum cup body integrally, with better portability when going out. Since the vacuum cup mainly provides heat through power supply to achieve long-term constant temperature effect, therefore, the detachable connecting place of vacuum cup body 100 and base 200 is equipped with coupler 500 for electrically conductive. And for the detachable structure of vacuum cup body 100 and base 200, screw buckle structure 600 is preferably selected, which is disclosed as prior art in a kind of split portable induction heating vacuum cup with publication number CN222828393U, not repeated here.

[0025] The cup body 100 includes a cylindrical cup shell 110 and a containing bin 120 for containing liquid in the cup shell 110, the containing bin 120 is made of non-toxic and harmless safety material, such as food-grade stainless steel material. The bottom has an induction heating body 111 of iron-based material, the induction heating body 111 can be integrally formed with the bottom of the containing bin 120, so that the induction heating body 111 is in direct contact with the liquid in the containing bin 120 to improve the heat exchange efficiency. A temperature probe 101 for sensing liquid temperature is connected to the lower surface of the containing bin 120 near the edge, and the temperature probe 101 in this embodiment is an NTC temperature sensor. An induction coil 102 is provided directly below the induction heating body 111, the induction coil 102 is in the form of a sheet, and the coil is made in a planar spiral manner. The planar spiral coil is fixedly connected by being arranged on a support plate, and the induction coil 102 is located inside the cup shell 110. In order to improve the inductive heating efficiency, the distance between the induction coil 102 and the induction heating body 111 should not be too large, and in this embodiment, the distance between them is 3-5mm. The induction coil 102 and the temperature probe 101 are electrically connected to the corresponding circuit in the base 200 through the coupler 500.

[0026] The base 200 is a cylindrical hollow shell, and the shell is provided with a control circuit 300 and a power module 400 electrically connected thereto. The control circuit 300 is electrically connected to the induction coil 102 and the temperature probe 101 through the coupler 500. The control circuit 300 has a boost module 301, which can boost the voltage from 7.4v to 14-24v. By increasing the voltage, the power loss at the contact part of the coupler 500 is reduced, thereby improving the constant temperature efficiency of the cup. The control circuit 300 is arranged on a circuit board by related electrical components to reduce the internal volume. The corresponding control components such as buttons or display operation screens can be extended to the outer wall of the base 200 shell for easy user operation and setting. The above-mentioned control circuit 300, boost module 301 and power module 400 are all prior art and will not be described in detail. For example, the boost module 301 can use a boost chip, and the power module 400 can use a lithium battery pack with a charging module. Of course, in some embodiments, the power module 400 can also be a plug for connecting an external power supply.

[0027] In some other embodiments, the coupler 500 is two sets of mutually adapted electrode contacts 501, each set is arranged at the bottom of the cup shell 110 and the top of the base 200 shell respectively, and the conductive tips of the contacts are exposed. Each set of electrode contacts 501 is 4 and arranged in a rectangular array, wherein the temperature probe 101 is electrically connected to one pair of diagonal electrode contacts 501 at both ends, and the induction coil 102 is electrically connected to another pair of diagonal electrode contacts 501 at both ends. This connection arrangement can increase the distance between the positive and negative electrodes of the components, reduce the short circuit phenomenon caused by liquid (water) tension, and improve the safety performance of the product. In this embodiment, the diagonal distance is 11-13 mm, and the length of the virtual rectangle in which the electrode contacts 501 are located should not be too small. The corresponding virtual rectangle can be a square. Preferably, the set of electrode contacts 501 on the top of the base 200 shell is a spring probe, which has an elastic expansion function in the axial direction. The set of electrode contacts 501 on the bottom of the cup shell 110 is a matching metal contact. When the vacuum cup body 100 and the base 200 are connected through the rotating buckle structure 600, the vacuum cup body 100 and the base 200 can rotate around the vacuum cup axis, so that the spring probe and the metal contact are finally attached and conductive after relative rotation. In particular, the spring probe exerts a certain pressing force on the metal contact under its own elasticity, further improving the contact stability of the two sets of electrode contacts.

[0028] In addition, the cup shell 110 also has a heat preservation body 103 between the induction heating body 111 and the induction coil 102 for reducing heat dissipation of the vacuum cup body. The shape of the heat preservation body 103 is adapted to the size of the corresponding space. Preferably, the heat preservation body 103 is made of a heat-insulating and flame-retardant material, such as aerogel felt, aluminum silicate fiber blanket, or silica gel. The sidewall of the cup shell 110 has an annular vacuum cavity 112 for heat preservation and insulation. The annular vacuum cavity 112 is used as a conventional heat preservation means for general vacuum cups to slow down the energy dissipation of the liquid in the cup by using vacuum to prolong the heat preservation time.

[0029] The vacuum cup has heating, constant temperature and heat preservation functions. The induction coil 102 is arranged in the vacuum cup body 100 to be closer to the induction heating body 111 to reduce energy loss. The boost module 301 is used to increase the working voltage to reduce the power loss of the contact part of the coupler. The arrangement position and structure of the coupler 500 can reduce the risk of short circuit.

[0030] The above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations extended from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A portable constant-temperature thermos cup, comprising a thermos cup body (100) and a base (200) detachably connected with the bottom of the thermos cup body (100), the thermos cup body (100) and the base (200) being electrically connected through a coupler (500), characterized in that: the thermos cup body (100) comprises a cup shell (110) and a containing bin (120) for containing liquid in the cup shell (110), the containing bin (120) being provided with an induction heating body (111) at the bottom and a temperature probe (101) for sensing the liquid temperature, the induction heating body (111) being in direct contact with the liquid in the containing bin (120), and an induction coil (102) being arranged below the induction heating body (111) and in the cup shell (110); the base (200) is provided with a control circuit (300) and a power module (400) electrically connected therewith, the control circuit (300) having a voltage boosting module (301) therein; the control circuit (300) is electrically connected with the induction coil (102) and the temperature probe (101) through the coupler (500). The coupler (500) is two groups of electrode contacts (501) adapted to each other, each group of electrode contacts (501) being four and arranged in a rectangular array, wherein the temperature probe (101) is electrically connected with two electrode contacts (501) at opposite diagonal lines, and the induction coil (102) is electrically connected with two electrode contacts (501) at the other opposite diagonal lines.

2. The portable constant-temperature vacuum cup according to claim 1, characterized in that: The thermos cup body (100) and the base (200) are detachably connected through a screwing structure (600), and one group of the electrode contacts (501) is a spring probe.

3. The portable constant-temperature vacuum cup according to claim 2, characterized in that: The cup shell (110) is further provided with a heat preservation body (103) between the induction heating body (111) and the induction coil (102) for reducing heat dissipation of the thermos cup body.

4. The portable constant-temperature vacuum cup according to claim 1, characterized in that: The heat preservation body (103) is aerogel felt, aluminum silicate fiber blanket or silica gel.

5. The portable constant-temperature vacuum cup according to claim 4, characterized in that: The sidewall of the cup shell (110) has an annular vacuum cavity (112) for heat insulation.

6. The portable constant-temperature vacuum cup according to any one of claims 1 to 5, characterized in that: The sidewall of the cup shell (110) has an annular vacuum cavity (112) for heat insulation.

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