Insulated constant-temperature cup base, constant-temperature cup and constant-temperature cup system

Abstract

The utility model discloses an insulating constant-temperature cup base, a constant-temperature cup and a constant-temperature cup system, and relates to the technical field of wireless heating vacuum cups. In the first aspect, the insulating constant-temperature cup base comprises a cup base body, a receiving coil is arranged in the cup base body, a partition frame is arranged on one side of the receiving coil, and the top face of the partition frame and the inner wall of the cup base body form a containing cavity. On the second aspect, the constant-temperature cup comprises the insulating constant-temperature cup base, a heat conduction cup body is arranged in the containing cavity and located above the partition frame, a containing cavity is formed in the partition frame, a temperature adjusting piece is arranged in the containing cavity, and the temperature adjusting piece is attached to the heat conduction cup body. In the third aspect, the constant-temperature cup system comprises a constant-temperature cup mat and the constant-temperature cup, and a transmitting coil is arranged in the constant-temperature cup mat. Fourthly, a constant temperature control method is provided. The self-protection function of the constant-temperature cup mat can be triggered when the heat-conducting cup body is too close to the constant-temperature cup mat, so that the constant-temperature cup mat with the transmitting coil can smoothly heat and preserve heat of the heat-conducting cup body.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless heating thermos cups, and particularly relates to an insulating constant temperature cup holder, a constant temperature cup, and a constant temperature cup system. Background Art

[0002] In daily life, thermos cups are often used to keep the temperature of the liquid in the cup. There are already many constant temperature cup pads on the market. The power supply of the constant temperature cup pad is generally through wired connection or wireless power supply mode. For the wireless power supply mode, as mentioned in the Chinese patent application with the publication number CN110933794, which discloses an intelligent constant temperature electricity, a constant temperature container, and a constant temperature control method, as Figure 1 shown, through the settings of the transmitting coil, the receiving coil, and the metal sheet, after the transmitting coil is energized, a magnetic field is generated. When the metal sheet enters the magnetic field generated by the transmitting coil, eddy currents are generated, so as to heat the bottom of the cup body to achieve the heat preservation effect; and when the receiving coil enters the magnetic field generated by the transmitting coil, a current is generated and transmitted to the circuit board, enabling the circuit board to supply energy to the control module on the circuit board.

[0003] In the existing method of using wireless charging for heat preservation, one method is to set the transmitting coil in the constant temperature cup pad. In order to enable the receiving coil to receive the magnetic field generated by the transmitting coil, usually the receiving coil needs to be set at the inner bottom of the cup body. However, if the magnetic conductive cup body is in direct contact with the top surface of the constant temperature cup pad, the magnetic field generated by the transmitting coil will cause eddy currents to be generated at the bottom of the magnetic conductive cup body, resulting in rapid temperature rise, which is likely to burn out the outer shell of the constant temperature cup pad and scald the human body. Therefore, usually a self-protection function is set in the circuit of the constant temperature cup pad, that is, when a cup body made of conductive material approaches the constant temperature cup pad in the prior art with the publication number CN112583141B, the constant temperature cup pad will be in a self-protection state, and the power supply will stop supplying power to the transmitting coil.

[0004] That is, the constant temperature cup pads used in the prior art usually have a detection range of "no start when there is a metal foreign object" protection, and can stop starting the transmitting coil when a metal foreign object is detected within a certain range on the constant temperature cup pad, so as to achieve the self-protection function. Most of the constant temperature cup pads on the market currently have the self-protection function. When the magnetic conductive cup body in the prior art is directly placed on the constant temperature cup pad with the self-protection function, the constant temperature cup pad cannot heat the magnetic conductive cup body.

[0005] However, a cup body that is a magnetic conductor generally has good thermal conductivity. Therefore, there is a need for a constant temperature cup that is not easily triggered by the self-protection function of the constant temperature cup pad and at the same time has good thermal conductivity. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide an insulated constant-temperature cup holder, a constant-temperature cup, and a constant-temperature cup system, which can prevent the heat-conducting cup body from being too close to the constant-temperature cup mat and triggering the self-protection function of the constant-temperature cup mat, so that the constant-temperature cup mat with an emission coil can smoothly heat and keep warm the heat-conducting cup body.

[0007] To solve the above technical problems, the present utility model adopts the following solutions:

[0008] In the first aspect, an insulated constant-temperature cup holder is used in combination with a constant-temperature cup mat with an emission coil. It includes a cup holder. An accommodation cavity for embedding a heat-conducting cup body is provided inside the cup holder. A receiving coil for receiving the magnetic field generated by the emission coil to generate current is provided on the bottom surface inside the cup holder. On the side of the receiving coil facing away from the bottom surface inside the cup holder, a partition frame is provided for separating the heat-conducting cup body embedded in the cup holder from the magnetic field generated by the emission coil. The top surface of the partition frame and the inner wall of the cup holder form the accommodation cavity. The cup holder is made of an insulating material, such as silicone, which can prevent the cup holder from receiving the magnetic field generated by the emission coil and thus generating eddy currents. Its function is that through the setting of the partition frame, when the constant-temperature cup is placed on the constant-temperature cup mat for heating, the partition frame can separate the heat-conducting cup body from the constant-temperature cup mat by a certain distance, thereby preventing the magnetic field generated by the emission coil from causing eddy currents at the bottom of the heat-conducting cup body and rapidly increasing the temperature, and avoiding the heat-conducting cup body being too close to the constant-temperature cup mat and triggering the self-protection function of the constant-temperature cup mat.

[0009] Furthermore, in the state where the cup holder is placed on the constant-temperature cup mat, the distance between the top surface of the partition frame and the emission coil is greater than the detection range of the "non-start for metal foreign objects" protection of the emission coil. Specifically, the distance between the bottom surface inside the cup holder and the top surface of the partition frame is greater than 5 mm. The detection range of the "non-start for metal foreign objects" protection of the emission coil is the protection range in which the emission coil does not start when detecting a metal foreign object as described in the Chinese patent application with the publication number CN112583141B. The receiving coil is closely attached to the inner bottom surface of the cup holder.

[0010] Further, an installation cavity is provided on the side of the partition frame facing the receiving coil. A circuit board is provided in the installation cavity. A temperature regulating sheet for attaching to the bottom surface of the heat-conducting cup body is provided on the top surface of the partition frame. The receiving coil is electrically connected to the circuit board, and the receiving coil supplies power to the circuit board. The circuit board is electrically connected to the temperature regulating sheet, and the circuit board supplies power to the temperature regulating sheet. The temperature regulating sheet adopts a shape such as a ring, a disc, or a polygon according to the shape of the cup body. The temperature regulating sheet adopts a PI heating sheet, a PTC heating sheet, carbon fiber heating, a silica gel heating sheet, a PET heating sheet, a semiconductor refrigeration sheet, a carbon fiber silica heating wire, or a PTC heating wire in the prior art; the partition frame is made of a heat-resistant material, such as high-temperature resistant plastic PC material, and is injection molded. Its function is that through the setting of the circuit board, the alternating current transmitted from the receiving coil to the circuit board can be converted into direct current and then transmitted to the temperature regulating sheet, so that the temperature regulating sheet generates heat to heat the heat-conducting cup body; through the design of the partition frame using a heat-resistant material, when the temperature regulating sheet heats the heat-conducting cup body, the temperature regulating sheet will not transfer heat to the partition frame and cause damage, so that the heat generated by the temperature regulating sheet is mostly transferred to the heat-conducting cup body, and the heating effect is good; through the combined setting of the temperature regulating sheet and the partition frame, the original heating method of the heat-conducting cup body can be converted from eddy current heating to heating by electric energy supply.

[0011] Further, a placement cavity for placing the temperature regulating sheet is provided on the top surface of the partition frame, and a wire passing hole communicating with the installation cavity is provided on the bottom surface of the placement cavity. Its function is that through the setting of the wire passing hole, the wires on the circuit board can pass through the wire passing hole to be connected to the temperature regulating sheet to supply power to the temperature regulating sheet.

[0012] Further, a temperature sensor and a display board are provided on the inner wall of the cup holder. Both the temperature sensor and the display board are electrically connected to the circuit board. Its function is that through the setting of the temperature sensor, the temperature of the liquid in the heat-conducting cup body can be detected by detecting the temperature of the heat-conducting cup body, and the detected temperature signal is transmitted to the circuit board; through the setting of the display board, after the circuit board receives the temperature signal transmitted by the temperature sensor, the temperature information can be transmitted to the display board for display.

[0013] The circuit board, that is, the electronic control PCB board, is the central control device. Its main control chip has high-integration wireless power reception, an efficient full-bridge synchronous rectification circuit, a wireless charging overvoltage protection circuit, an ASK modulation circuit, an FSK demodulation circuit, the WPC Qi protocol standard, a voltage-stabilizing LDO, undervoltage protection, overcurrent protection, and anti-offset ability. The circuit board can control the working state of the temperature regulating sheet. When the temperature sensor detects that the water temperature is higher than the set temperature, power is not supplied to the temperature regulating sheet to make it stop working. When the temperature sensor detects that the water temperature is lower than the set temperature, power is supplied to the temperature regulating sheet, and the temperature regulating sheet works (heats).

[0014] Further, a magnetic isolation sheet is provided between the receiving coil and the partition frame. The magnetic isolation sheet is a prior art. Its function is that by providing the magnetic isolation sheet, the magnetic field range generated by the transmitting coil can be prevented from exceeding the receiving coil.

[0015] Further, an annular silica gel anti-slip pad is embedded on the bottom surface of the cup holder. In the axial projection view of the silica gel anti-slip pad, the receiving coil is arranged inside the silica gel anti-slip pad.

[0016] In a second aspect, a thermostatic cup includes the above-mentioned insulated thermostatic cup holder. A heat-conducting cup body is provided in the accommodating cavity. The heat-conducting cup body is located above the partition frame. A placement cavity is provided on the top surface of the partition frame. A temperature regulating sheet is provided in the placement cavity. The temperature regulating sheet is attached to the bottom surface of the heat-conducting cup body. The heat-conducting cup body is made of a heat-resistant material with strong heat-conducting performance, such as stainless steel.

[0017] Further, a support plate for supporting on the top surface of the cup holder is provided on the outer wall of the heat-conducting cup body. An outwardly protruding cup body convex ring is provided on the outer wall of the heat-conducting cup body. An inwardly protruding cup holder convex ring is provided on the inner wall of the cup holder. In the state where the heat-conducting cup body is installed in the thermostatic cup holder, the cup body convex ring closely adheres to the lower surface of the cup holder convex ring. The support plate is in the shape of an annular flat plate surrounding the outer wall of the heat-conducting cup body, and the outer diameter of the support plate is not less than the outer diameter of the top surface of the cup holder. Its function is that by providing the support plate, the top surface of the cup holder can support the heat-conducting cup body, keeping the heat-conducting cup body away from the transmitting coil and preventing eddy currents from being generated in the heat-conducting cup body; by providing the cup body convex ring, the cup holder convex ring and the support plate, the support plate restricts the heat-conducting cup body from moving towards the inside of the cup holder, and the cup holder convex ring restricts the heat-conducting cup body from moving towards the outside of the cup holder, achieving the effect of fixing the heat-conducting cup body on the cup holder.

[0018] In a third aspect, a thermostatic cup system includes a thermostatic cup mat and the above-mentioned thermostatic cup. A transmitting coil is provided inside the thermostatic cup mat. The thermostatic cup mat is a prior art with self-protection function.

[0019] In a fourth aspect, a thermostatic control method is applied to the above-mentioned thermostatic cup system, including the following steps:

[0020] Step S1: Connect the thermostatic cup mat to the power supply, and the transmitting coil generates a magnetic field;

[0021] Step S2: Place the thermostatic cup on the thermostatic cup mat so that the receiving coil enters the magnetic field generated by the transmitting coil;

[0022] Step S3: After the receiving coil enters the magnetic field generated by the transmitting coil, an alternating current is generated and the alternating current is transmitted to the circuit board;

[0023] Step S4: The circuit board converts the alternating current into direct current and transmits it to the temperature regulating sheet to heat the heat-conducting cup body with the temperature regulating sheet.

[0024] Furthermore, in step S2, when the thermostatic cup is placed on the thermostatic cup mat, due to the setting of the partition rack, the heat-conducting cup body is at a relatively far distance from the transmitting coil, so that the magnetic field generated by the transmitting coil does not generate eddy currents on the heat-conducting cup body.

[0025] Furthermore, through the setting of the magnetic isolation sheet, it is possible to further prevent the magnetic field generated by the transmitting coil from generating eddy currents on the heat-conducting cup body.

[0026] The beneficial effects of the present utility model are as follows:

[0027] 1. Through the setting of the partition rack, when the thermostatic cup is placed on the thermostatic cup mat for heating, the partition rack can separate the heat-conducting cup body from the thermostatic cup mat by a certain distance, thereby preventing the magnetic field generated by the transmitting coil from generating eddy currents at the bottom of the heat-conducting cup body and causing it to heat up rapidly, and avoiding the heat-conducting cup body being too close to the thermostatic cup mat and triggering the self-protection function of the thermostatic cup mat;

[0028] 2. Through the setting of the circuit board, the alternating current transmitted by the receiving coil to the circuit board can be converted into direct current and then transmitted to the temperature control sheet, so that the temperature control sheet generates heat to heat the heat-conducting cup body;

[0029] 3. Through the combined setting of the temperature control sheet and the partition rack, the original heating method for the heat-conducting cup body can be converted from eddy current heating to heating powered by electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the circuit function block diagram of the thermostatic cup system in the prior art;

[0031] Figure 2 is the three-dimensional exploded semi-sectional structure schematic diagram of Embodiment 1;

[0032] Figure 3 is the sectional structure schematic diagram of Embodiment 1;

[0033] Figure 4 is Figure 2 the enlarged structure schematic diagram at A in

[0034] Figure 5 is Figure 2 the enlarged structure schematic diagram at B in

[0035] Figure 6 is the three-dimensional structure schematic diagram of the partition rack in Embodiment 1;

[0036] Figure 7 is the circuit function block diagram of Embodiment 1;

[0037] Figure 8 is the three-dimensional exploded structure schematic diagram of Embodiment 2;

[0038] Figure 9Schematic cross-sectional structure diagram of Embodiment 2.

[0039] Reference numerals: 3, cup holder; 4, heat-conducting cup body; 5, accommodating cavity; 6, receiving coil; 7, partition rack; 8, installation cavity; 9, circuit board; 10, temperature-regulating sheet; 11, placing cavity; 12, wire passing hole; 13, temperature sensor; 14, display board; 15, support plate; 16, cup body convex ring; 17, cup holder convex ring; 18, magnetic isolation sheet; 19, inner layer; 20, outer layer; 21, support column; 22, top cover; 23, base; 24, O-ring. Detailed implementation manners

[0040] The following combines embodiments and the accompanying drawings to further elaborate on the present utility model in detail, but the implementation manners of the present utility model are not limited thereto.

[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0042] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, terms such as "set", "provided with", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] Embodiment 1

[0044] First aspect, an insulated constant-temperature cup holder for use in conjunction with a constant-temperature cup mat with a transmitting coil, as Figure 2As shown in the figure, it includes a cup holder 3. An accommodation cavity 5 for embedding a heat-conducting cup body 4 is provided inside the cup holder 3. A receiving coil 6 for receiving the magnetic field generated by the transmitting coil to generate current is provided on the bottom surface of the inner side of the cup holder 3. A partition frame 7 for separating the heat-conducting cup body 4 embedded in the cup holder 3 from the magnetic field generated by the transmitting coil is provided on the side of the receiving coil 6 facing away from the bottom surface of the inner side of the cup holder 3. The top surface of the partition frame 7 and the inner wall of the cup holder 3 form the accommodation cavity 5. The cup holder 3 is made of an insulating material, such as silicone, which can prevent the cup holder 3 from receiving the magnetic field generated by the transmitting coil and thus generating eddy currents. Its function is that through the setting of the partition frame 7, when the thermostatic cup is placed on the thermostatic cup mat for heating, the partition frame 7 can separate the heat-conducting cup body 4 from the thermostatic cup mat by a certain distance, so as to prevent the magnetic field generated by the transmitting coil from generating eddy currents at the bottom of the heat-conducting cup body 4 and causing rapid temperature rise, and avoid triggering the self-protection function of the thermostatic cup mat because the heat-conducting cup body 4 is too close to the thermostatic cup mat.

[0045] Specifically, in the state where the cup holder 3 is placed on the thermostatic cup mat, the distance between the top surface of the partition frame 7 and the transmitting coil is greater than the detection range of the "no start for metal foreign objects" protection of the transmitting coil. Specifically, the distance between the bottom surface of the inner side of the cup holder 3 and the top surface of the partition frame 7 is greater than 5 mm. The detection range of the "no start for metal foreign objects" protection of the transmitting coil is the protection range in which the transmitting coil detects a metal foreign object and thus does not start as described in the Chinese patent application with the publication number CN112583141B. The receiving coil 6 is closely attached to the inner bottom surface of the cup holder 3.

[0046] Specifically, such as Figure 2As shown, on the side of the partition frame 7 facing the receiving coil 6, there is an installation cavity 8. Inside the installation cavity 8, there is a circuit board 9. On the top surface of the partition frame 7, there is a temperature regulating sheet 10 for attaching to the bottom surface of the heat-conducting cup body 4. The receiving coil 6 is electrically connected to the circuit board 9, and the receiving coil 6 supplies power to the circuit board 9. The circuit board 9 is electrically connected to the temperature regulating sheet 10, and the circuit board 9 supplies power to the temperature regulating sheet 10. The circuit board 9 is installed in the installation cavity 8 by bolts, and the receiving coil 6 is located between the installation cavity 8 and the inner bottom of the cup holder 3. The temperature regulating sheet adopts a shape such as a ring, a disc, or a polygon according to the shape of the cup body. The temperature regulating sheet adopts a PI heating sheet, a PTC heating sheet, a carbon fiber heating sheet, a silicone heating sheet, a PET heating sheet, a semiconductor refrigeration sheet, a carbon fiber silicone heating wire, or a PTC heating wire in the prior art; the partition frame 7 is made of a heat-resistant material, such as a high-temperature resistant plastic PC material, and is injection molded. Its function is that through the setting of the circuit board 9, the alternating current transmitted from the receiving coil 6 to the circuit board 9 can be converted into direct current and then transmitted to the temperature regulating sheet 10, so that the temperature regulating sheet 10 generates heat to heat the heat-conducting cup body 4; through the design of the partition frame 7 using a heat-resistant material, when the temperature regulating sheet heats the heat-conducting cup body 4, the temperature regulating sheet will not transfer heat to the partition frame 7 and cause damage, so that the heat generated by the temperature regulating sheet is mostly transferred to the heat-conducting cup body 4, and the heating effect is good; through the combined setting of the temperature regulating sheet 10 and the partition frame 7, the original heating method of the heat-conducting cup body 4 can be converted from eddy current heating to electric energy supply heating.

[0047] Specifically, as Figure 5 , Figure 6 shown, on the top surface of the partition frame 7, there is a placement cavity 11 for placing the temperature regulating sheet 10. On the bottom surface of the placement cavity 11, there is a wire passing hole 12 communicating with the installation cavity 8. The top surface of the partition frame 7 is disc-shaped, the installation cavity 8 is hollow cylindrical, the placement cavity 11 is ring-shaped, and the top surface of the partition frame 7 is coaxially arranged with both the installation cavity 8 and the placement cavity 11. The outer diameter of the top surface of the partition frame 7 is larger than the outer diameter of the installation cavity 8. On the inner bottom surface of the cup holder 3, there are support columns 21 for supporting the area of the top surface of the partition frame 7 outside the installation cavity 8. In the area of the top surface of the partition frame 7 corresponding to the support columns 21, there are through holes with an inner diameter smaller than the outer diameter of the support columns 21. There is a thread inside the top end of the support column 21. At least three support columns 21 are evenly arranged around the outside of the installation cavity 8. By using bolts to pass through the through holes and thread them into the installation columns, the effect of fixedly installing the partition frame 7 is achieved. Its function is that through the setting of the wire passing hole 12, the wires on the circuit board 9 can pass through the wire passing hole 12 to be connected to the temperature regulating sheet 10 and supply power to the temperature regulating sheet 10.

[0048] Specifically, as Figure 3As shown, a temperature sensor 13 and a display board 14 are provided on the inner wall of the cup holder 3. Both the temperature sensor 13 and the display board 14 are electrically connected to the circuit board 9. Its function is that through the setting of the temperature sensor 13, the temperature of the liquid in the heat-conducting cup body 4 can be detected by detecting the temperature of the heat-conducting cup body 4, and the detected temperature signal is transmitted to the circuit board 9; through the setting of the display board 14, after the circuit board 9 receives the temperature signal transmitted by the temperature sensor 13, the temperature information is transmitted to the display board 14 for display.

[0049] Specifically, as Figure 3 shown, the cup holder 3 includes an inner layer 19 and an outer layer 20 which are distributed inside and outside. There is a heat insulation gap between the inner layer 19 and the outer layer 20. The partition frame 7 is located inside the inner layer 19. The temperature sensor 13 is provided on the inner layer 19. The temperature sensor 13 is located above the partition frame 7. The display board 14 is provided on the outer layer 20. Both the display board 14 and the temperature sensor 13 are located below the cup holder convex ring 17.

[0050] The circuit board 9, that is, the electronic control PCB board, is the central control device. Its main control chip has high-integration wireless power reception, high-efficiency full-bridge synchronous rectification circuit, wireless charging overvoltage protection circuit, ASK modulation circuit, FSK demodulation circuit, WPC Qi protocol standard, voltage-stabilizing LDO, undervoltage protection, overcurrent protection, and anti-offset ability. The circuit board 9 can control the working state of the temperature regulating sheet. When the temperature sensor 13 detects that the water temperature is higher than the set temperature, the temperature regulating sheet is not powered, so that it stops working. When the temperature sensor 13 detects that the water temperature is lower than the set temperature, the temperature regulating sheet is powered, and the temperature regulating sheet works (heats).

[0051] Specifically, as Figure 2 shown, a magnetic isolation sheet 18 is provided between the receiving coil 6 and the partition frame 7. The magnetic isolation sheet 18 is a prior art. Its function is that through the setting of the magnetic isolation sheet 18, the magnetic field range generated by the transmitting coil can be prevented from exceeding the receiving coil 6.

[0052] A circular silica gel anti-slip pad is embedded on the bottom surface of the cup holder 3. In the axial projection view of the silica gel anti-slip pad, the receiving coil 6 is provided inside the silica gel anti-slip pad.

[0053] In the second aspect, a thermostatic cup includes the above-mentioned insulating thermostatic cup holder 3. As Figure 2 shown, a heat-conducting cup body 4 is provided in the accommodation cavity 5. The heat-conducting cup body 4 is located above the partition frame 7. A placement cavity 11 is provided on the top surface of the partition frame 7. A temperature regulating sheet 10 is provided in the placement cavity 11. The temperature regulating sheet 10 is attached to the bottom surface of the heat-conducting cup body 4. The heat-conducting cup body 4 is made of a heat-resistant material with strong heat conductivity, such as stainless steel.

[0054] Specifically, as Figure 4As shown, a support plate 15 for supporting on the top surface of the cup holder 3 is provided on the outer wall of the heat-conducting cup body 4. A cup body convex ring 16 protruding outward is provided on the outer wall of the heat-conducting cup body 4, and a cup holder convex ring 17 protruding inward is provided on the inner wall of the cup holder 3. In the state where the heat-conducting cup body 4 is installed in the constant-temperature cup holder 3, the cup body convex ring 16 closely adheres to the lower surface of the cup holder convex ring 17. The support plate 15 is in the shape of a circular ring flat plate surrounding the outer wall of the heat-conducting cup body 4, and the outer diameter of the support plate 15 is not less than the outer diameter of the top surface of the cup holder 3. Its function is that through the setting of the support plate 15, the top surface of the cup holder 3 can support the heat-conducting cup body 4, keeping the heat-conducting cup body 4 away from the transmitting coil and avoiding eddy currents generated in the heat-conducting cup body 4; through the settings of the cup body convex ring 16, the cup holder convex ring 17 and the support plate 15, the support plate 15 restricts the heat-conducting cup body 4 from moving inward into the cup holder 3, and the cup holder convex ring 17 restricts the heat-conducting cup body 4 from moving outward from the cup holder 3, achieving the effect of fixing the heat-conducting cup body 4 on the cup holder 3.

[0055] In a third aspect, a constant-temperature cup system includes a constant-temperature cup mat and the above-mentioned constant-temperature cup, and a transmitting coil is provided in the constant-temperature cup mat. The constant-temperature cup mat is a prior art with a self-protection function.

[0056] In a fourth aspect, a constant-temperature control method is applied to the above-mentioned constant-temperature cup system, and includes the following steps:

[0057] Step S1: Connect the constant-temperature cup mat to the power supply, and the transmitting coil generates a magnetic field;

[0058] Step S2: Place the constant-temperature cup on the constant-temperature cup mat so that the receiving coil 6 enters the magnetic field generated by the transmitting coil;

[0059] Step S3: After the receiving coil 6 enters the magnetic field generated by the transmitting coil, an alternating current is generated and transmitted to the circuit board 9;

[0060] Step S4: The circuit board 9 converts the alternating current into direct current and transmits it to the temperature-regulating sheet, so that the temperature-regulating sheet heats the heat-conducting cup body 4.

[0061] Specifically, in step S2, when the constant-temperature cup is placed on the constant-temperature cup mat, due to the setting of the partition frame 7, the heat-conducting cup body 4 is at a relatively far distance from the transmitting coil, so that the magnetic field generated by the transmitting coil does not generate eddy currents on the heat-conducting cup body 4.

[0062] Specifically, through the setting of the magnetic isolation sheet 18, it is possible to further avoid the magnetic field generated by the transmitting coil from generating eddy currents on the heat-conducting cup body 4.

[0063] The working principle of this embodiment is described as follows: First, connect the thermostatic cup mat with self-protection function to the power supply. The transmitting coil in the thermostatic cup mat generates a magnetic field after receiving alternating current. Then, place the thermostatic cup on the thermostatic cup mat so that the receiving coil 6 in the thermostatic cup enters the magnetic field generated by the transmitting coil. According to electromagnetic induction, the receiving coil 6 generates alternating current and transmits it to the circuit board 9. A rectification circuit is arranged in the circuit board 9 to convert the alternating current into direct current. Finally, the direct current is transmitted to the temperature regulating sheet to heat the heat-conducting cup body 4, so as to achieve the effect of heat preservation.

[0064] As Figure 7 shown, the thermostatic cup system includes a wireless charging module arranged in the thermostatic cup mat and a wireless power supply circuit arranged in the thermostatic cup. The wireless power supply circuit includes a main control module, a temperature control module and a heating module. The main control module is used to convert the energy received by the receiving coil 6 into current voltage and supply power to the temperature control module and the heating module. The temperature control module is used to detect the temperature at the bottom of the container in real time and control the working state of the heating module according to the detected temperature.

[0065] The wireless charging module includes a transmitting MCU, a frequency oscillator, a transmitting coil and a frequency oscillator, which are respectively electrically connected to the transmitting MCU, and the frequency oscillator is electrically connected to the transmitting coil.

[0066] The temperature control module includes a temperature control MCU, a temperature sensor 13 and a power control electronic switch, which are respectively electrically connected to the temperature control MCU. The temperature sensor 13 is used to detect the temperature at the bottom of the container in real time. The temperature control MCU is electrically connected to the main control module, and the output end of the power control electronic switch is connected to the heating module.

[0067] The main control module includes a main control MUC, a full-bridge synchronous rectification module and a modulation and demodulation module, which are respectively connected to the main control MCU. An overvoltage protection circuit is electrically connected to the full-bridge rectification module, and a voltage stabilization module is electrically connected to the overvoltage protection circuit. The receiving coil 6 is respectively electrically connected to the full-bridge rectification module and the modulation and demodulation module. The main control MCU communicates with the wireless charging module through the modulation and demodulation module and the receiving coil 6. The voltage stabilization module adopts an LDO voltage regulator. The modulation and demodulation module includes an ASK modulation circuit and an FSK demodulation circuit to realize the two-way wireless charging communication between the main control module and the wireless charging module.

[0068] The full-bridge synchronous rectification module includes a logic detection circuit, a rectification circuit and a drive circuit. The logic detection circuit is electrically connected to the main control MCU, the drive circuit is respectively electrically connected to the logic detection circuit and the rectification circuit, and the rectification circuit is connected to the receiving coil 6. The rectification circuit includes 4 N-MOSFETs, and the 4 N-MOSFETs are connected into a rectifier bridge structure to rectify the energy received by the receiving coil 6 and output it to provide a starting voltage for the main control MCU. The full-bridge synchronous rectification module in this embodiment adopts a common rectifier bridge and will not be elaborated in this article.

[0069] Initially, the alternating current input by the receiving coil 6 will flow through the parasitic diode of the MOSFET, and the rectified output of the parasitic diode provides a startup voltage for the chip. After the chip is powered on, the system switches the working mode of the rectifier bridge according to the load current. When the load is light, the rectifier bridge works in the asynchronous mode (parasitic diode mode), and when the load is heavy, it works in the synchronous mode (MOSFET switching mode) to ensure high efficiency and high stability of wireless charging; the wireless charging ASK modulation circuit and FSK demodulation circuit realize two-way wireless charging communication; the rectified voltage overvoltage protection circuit will trigger the VRECT voltage clamping function to limit the VRECT voltage when the rectified voltage VRECT exceeds 15V (the gear can be configured by software).

[0070] Due to the free-position characteristic of wireless charging, the rectified voltage VRECT is not a stable voltage, and there will be a large fluctuation in the rectified voltage VRECT during the process of moving the charging device. The main control chip integrates a voltage-stabilizing LDO. After the rectified voltage VRECT passes through the internal voltage-stabilizing LDO, it provides a stable DC voltage for the subsequent load. The output voltage and current of the voltage-stabilizing LDO can be set by software. The voltage setting range is 3.6V to 9V, with a step of 50mV; the output current limiting setting range is 0 to 1600mA, with a step of 50mA. The voltage-stabilizing LDO has safety protection functions such as input undervoltage protection, input dynamic regulation (Dynamic Power Management, DPM), output overcurrent protection, and output current limiting. When the charging device moves or is misaligned, the rectified voltage VRECT will drop. When it drops below the DPM threshold of the LDO, the voltage-stabilizing LDO will automatically reduce the output current to maintain the continuity of wireless charging and improve the anti-displacement deviation ability of wireless charging.

[0071] When the main control outputs stable voltage and current to the temperature control MCU, the MCU displays the temperature according to the parameters fed back by the temperature sensor 13; when the temperature reaches the set temperature, the temperature MCU outputs information to turn on the power switch, and at this time the heating device works. When the temperature sensor 13 reaches the set value, the temperature MCU stops outputting information to turn off the power switch, and the heating device stops working.

[0072] Embodiment 2

[0073] The partition frame 7 includes a top cover 22 and a base 23. The circuit board 9 is arranged in the installation cavity 8 formed by the top cover 22 and the base 23. The receiving coil 6 and the magnetic isolation sheet 18 are arranged in the bottom surface of the base 23. The temperature sensor 13 penetrates through the top cover 22, and the display board 14 penetrates through the top cover 22, the base 23 and the side wall of the cup holder 3.

[0074] The rest of the structure and working principle are the same as those of Embodiment 1.

[0075] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Based on the technical essence of the present utility model, any simple modifications, equivalent replacements, and improvements made to the above embodiments within the spirit and principles of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An insulating thermostatic cup holder, used in conjunction with a thermostatic cup mat with a transmitting coil, characterized in that: The invention comprises a cup holder (3), wherein a receiving cavity (5) for embedding a heat-conducting cup body (4) is provided in the cup holder (3), a receiving coil (6) for receiving a magnetic field generated by a transmitting coil and generating a current is provided on the bottom surface of the inner side of the cup holder (3), a partition frame (7) for keeping the heat-conducting cup body (4) embedded in the cup holder (3) away from the magnetic field generated by the transmitting coil is provided on the side of the receiving coil (6) facing away from the bottom surface of the inner side of the cup holder (3), and the top surface of the partition frame (7) and the inner wall of the cup holder (3) form the receiving cavity (5).

2. The insulated constant temperature cup holder according to claim 1, characterized in that: The top surface of the partition frame (7) is located outside the detection range of the "metal foreign body not activated" protection of the transmitting coil.

3. The insulated constant temperature cup holder according to claim 1, characterized in that: The partition frame (7) is provided with an installation cavity (8) on the side facing the receiving coil (6), a circuit board (9) is provided in the installation cavity (8), a temperature regulating sheet (10) for being attached to the bottom surface of the heat-conducting cup body (4) is provided on the top surface of the partition frame (7), the receiving coil (6) is electrically connected to the circuit board (9), the receiving coil (6) supplies power to the circuit board (9), the circuit board (9) is electrically connected to the temperature regulating sheet (10), and the circuit board (9) supplies power to the temperature regulating sheet (10).

4. The insulated constant temperature cup holder according to claim 3, characterized in that: A placement cavity (11) for placing the temperature regulating plate (10) is provided on the top surface of the partition frame (7), and a wire hole (12) communicating with the installation cavity (8) is provided on the bottom surface of the placement cavity (11).

5. The insulated constant temperature cup holder according to claim 3, characterized in that: A temperature sensor (13) and a display panel (14) are provided on the inner wall of the cup holder (3), and both the temperature sensor (13) and the display panel (14) are electrically connected to the circuit board (9).

6. The insulated constant temperature cup holder according to claim 1, characterized in that: A magnetic isolation sheet (18) is provided between the receiving coil (6) and the partition frame (7).

7. A thermostatic cup, characterized in that: An insulating constant-temperature cup holder comprising the invention as claimed in any one of claims 1 to 6, wherein a heat-conducting cup body (4) is arranged in the accommodating cavity (5), the heat-conducting cup body (4) is located above a partition frame (7), a placement cavity (11) is arranged on the top surface of the partition frame (7), a temperature regulating plate (10) is arranged in the placement cavity (11), and the temperature regulating plate (10) is attached to the bottom surface of the heat-conducting cup body (4).

8. The thermostatic cup according to claim 7, characterized in that: The outer wall of the heat-conducting cup body (4) is provided with a support plate (15) for supporting on the top surface of the cup seat (3); the outer wall of the heat-conducting cup body (4) is provided with a cup body convex ring (16) protruding outward; the inner wall of the cup seat (3) is provided with a cup seat convex ring (17) protruding inward; when the heat-conducting cup body (4) is installed in the constant temperature cup seat (3), the cup body convex ring (16) is in close contact with the lower surface of the cup seat convex ring (17).

9. The thermostatic cup according to claim 7, characterized in that: A circular silicone anti-skid pad is embedded on the bottom surface of the cup holder (3).

10. A constant temperature cup system, characterized in that: The invention comprises a thermostatic cup pad and a thermostatic cup as claimed in claim 7, wherein a transmitting coil is arranged inside the thermostatic cup pad.

Images