Chocolate melting device and portable chocolate melting fruit tray

Abstract

The utility model provides a chocolate melting device and a portable chocolate melting fruit tray. The chocolate melting device comprises a first container, a heating device, a control device and a power supply device, wherein the first container is used for containing chocolate, the heating device is located on the outer surface of the first container and used for heating the chocolate in the first container, and the control device is used for controlling the heating efficiency of the heating device, so that the temperature in the first container is kept below a first preset temperature and above a second preset temperature. The first preset temperature is higher than the melting point temperature of the chocolate, and the power supply device is used for supplying power to the heating device and the control device. The chocolate can be heated and melted between the chocolate melting point temperature and the first preset temperature, so that a user can make chocolate fruits conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, specifically but not limited to a chocolate melting device and a portable chocolate melting fruit tray. Background Art

[0002] Chocolate-coated fruit is a special snack with a layer of chocolate on the outer surface of the fruit. It is popular in Europe and America and usually appears in gatherings such as weddings and grand ceremonies. The process of making chocolate-coated fruit is also very simple. First, heat and melt the chocolate, then select the fruit and put it into the melted chocolate. A layer of chocolate covers the outer surface of the fruit. After the chocolate cools to a solid state, chocolate-coated fruit is formed.

[0003] In gathering occasions, to facilitate everyone in making chocolate-coated fruit, various fruits and melted chocolate are usually put into a fruit tray. The fruit tray is provided with multiple containers that can separate the fruits and the chocolate. Everyone can pick up different fruits from the fruit tray to make chocolate-coated fruit that suits their own taste. However, people find that the gathering time in life is often very long, and the melted chocolate is very easy to solidify again. If the solidified chocolate is reheated, it will stick to the fruit tray and it takes a lot of time to clean and remove the chocolate.

[0004] In view of this, a new structure or control method is needed to solve at least some of the above problems. Summary of the Utility Model

[0005] At least aiming at one or more problems in the background art, the utility model proposes a chocolate melting device and a portable chocolate melting fruit tray that can melt chocolate.

[0006] In a first aspect, the utility model proposes a chocolate melting device, which includes:

[0007] A first container for placing chocolate;

[0008] A heating device located on the outer surface of the first container for heating the chocolate placed in the first container;

[0009] A control device connected to the heating device for controlling the heating efficiency of the heating device to control the temperature in the first container to be maintained below a first preset temperature and above a second preset temperature; wherein, the first preset temperature is higher than the melting point temperature of the chocolate; and

[0010] A power supply device connected to the heating device and the control device for supplying power to the heating device and the control device.

[0011] Optionally, the heating device includes at least one heating wire, and the control device controls the heating efficiency of the heating device by changing the working time ratio of the heating wire per unit time. When the working time ratio of the heating wire per unit time is increased, the heating efficiency of the heating device is improved, and when the working time ratio of the heating wire per unit time is reduced, the heating efficiency of the heating device is reduced.

[0012] Optionally, the heating device comprises at least two heating wires, and the control device controls the heating efficiency of the heating device by changing the number of the heating wires in the working state. When the number of the heating wires in the working state is increased, the heating efficiency of the heating device is improved, and when the number of the heating wires in the working state is reduced, the heating efficiency of the heating device is reduced.

[0013] Optionally, when the temperature in the first container is higher than the first preset temperature, the control device reduces the heating efficiency of the heating device so that the heating efficiency is lower than the heat dissipation efficiency; when the temperature in the first container is lower than the second preset temperature, the control device increases the heating efficiency of the heating device so that the heating efficiency is higher than the heat dissipation efficiency.

[0014] Optionally, a heat-insulating material is further provided on the outer surface of the heating device, and the heat-insulating material is used to reduce the heat dissipation efficiency of the first container.

[0015] Optionally, the chocolate melting device further comprises a cup cover, which comprises a rolling bearing, a game card, an acrylic plate and a metal plate, wherein the acrylic plate has a magnetic structure, is magnetically attracted to the metal plate, and fixes the game card between the acrylic plate and the metal plate, and the game card is located above the rolling bearing, and when the rolling bearing is turned, the game card rotates with the rolling bearing.

[0016] In a second aspect, the utility model also proposes a portable chocolate melting fruit tray, comprising the chocolate melting device as described in the first aspect, and also comprising a second container, wherein the second container is used to place fruits.

[0017] Optionally, the chocolate melting device further comprises a third container, wherein an upper portion and a lower portion are provided in the third container, the first container is placed in the upper portion of the third container, and the control device and the power supply device are placed in the lower portion of the third container.

[0018] Optionally, the portable chocolate melting fruit plate further includes a base, the base includes a middle part and an edge part, a convex structure is provided on the middle part of the base, a sliding structure is provided on the edge part of the base, the second container is placed on the sliding structure, and the third container is placed on the convex structure. When the second container is toggled, the sliding structure is used to rotate the second container, and the convex structure is used to prevent the third container from sliding left and right.

[0019] Optionally, the convex structure includes a first buckle and a second buckle. The first buckle has a side wall, and a first buckle assembly extending outward is further provided on the outer side of the side wall of the first buckle. The second buckle has a bottom, a hollow through hole is provided in the middle of the bottom of the second buckle, and a second buckle assembly extending upward is further provided on the edge of the bottom of the second buckle. Among them, the side walls of multiple first buckles abut against the hollow through hole of the second buckle from the inside to the outside to prevent the second buckle from moving left and right, the first buckle assemblies of multiple first buckles abut against the bottom of the second buckle from top to bottom to prevent the second buckle from moving up and down, and the second buckle assembly of the second buckle abuts against the third container to prevent the third container from sliding.

[0020] A chocolate melting device and a portable chocolate melting fruit plate proposed by the present utility model include a first container, a heating device, a control device and a power supply device. Among them, the first container is used to place chocolate, the heating device is located on the outer surface of the first container and is used to heat the chocolate in the first container, the control device is used to control the heating efficiency of the heating device so that the temperature in the first container is maintained below a first preset temperature and above a second preset temperature, and the first preset temperature is higher than the melting point temperature of chocolate, and the power supply device is used to supply power to the heating device and the control device. The chocolate will melt when heated between the melting point temperature of chocolate and the first preset temperature, which is convenient for users to make chocolate fruits. Description of the Drawings

[0021] The drawings are used to provide a further understanding of the present utility model, and are used together with the description to explain the embodiments of the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0022] Figure 1 A schematic structural diagram of a chocolate melting device according to an embodiment of the present utility model is shown;

[0023] Figure 2 A schematic structural diagram of a main heating circuit according to an embodiment of the present utility model is shown;

[0024] Figure 3 A schematic structural diagram of an auxiliary heating circuit according to an embodiment of the present utility model is shown;

[0025] Figure 4 Shows a schematic structural diagram of a display circuit according to an embodiment of the present invention;

[0026] Figure 5 Shows a schematic structural diagram of a control circuit according to an embodiment of the present invention;

[0027] Figure 6 Shows a schematic structural diagram of a usb interface circuit according to an embodiment of the present invention;

[0028] Figure 7 Shows a schematic structural diagram of a charging circuit according to an embodiment of the present invention;

[0029] Figure 8 Shows a schematic structural diagram of a buck circuit according to an embodiment of the present invention;

[0030] Figure 9 Shows a schematic structural diagram of a portable chocolate melting fruit plate according to an embodiment of the present invention;

[0031] Figure 10 Shows a schematic diagram of the positional relationship between a first container and a third container according to an embodiment of the present invention;

[0032] Figure 11 Shows a schematic structural diagram of the integration of a heat insulation cavity and a first container according to an embodiment of the present invention;

[0033] Figure 12 Shows a schematic structural diagram of the separation of a heat insulation cavity and a first container according to an embodiment of the present invention;

[0034] Figure 13 Shows a schematic structural diagram of a base according to an embodiment of the present invention;

[0035] Figure 14 Shows a schematic structural diagram of a cup lid according to an embodiment of the present invention. Detailed implementation manners

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. 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 should not be construed as a limitation to the present utility model. In addition, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may 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 circumstances.

[0039] Please refer to Figure 1 , an alternative embodiment of the present utility model provides a chocolate melting device, which includes a first container 1, a heating device 7, a control device 8, and a power supply device 9.

[0040] Among them, the first container 1 includes a bottom and a side wall. The bottom and the side wall enclose a cylinder with a top opening. The shape of the cylinder includes but is not limited to a cylinder, a frustum of a cone, a prism, and a frustum of a pyramid. The inner surface of the cylinder encloses a cavity, and this cavity is used to place chocolate. In one embodiment, the first container 1 is made of a heat-conducting material, and the heat-conducting material includes but is not limited to metallic iron, metallic copper, metallic aluminum, and their alloys.

[0041] The heating device 7 can increase the temperature of the surrounding objects. Since the first container 1 is made of a heat-conducting material, the temperature of the first container 1 is easily affected by the heating device 7. The heating device 7 is located on the outer surface of the first container 1. Specifically, the heating device 7 can be located at the bottom, side wall of the first container 1, or the position area where both are added. The heating device 7 is used to heat the chocolate placed in the first container 1. In an optional embodiment, the heating device 7 is a heating wire, which has a high resistivity and a low temperature coefficient. When the heating wire is powered on, it will convert electrical energy into heat energy output, increasing the temperature inside the first container 1. In another optional embodiment, if the first container 1 is made of metallic iron or ferroalloy, the heating device 7 can also be an electromagnetic inductor. The electromagnetic inductor uses electromagnetic induction to generate eddy currents inside the first container 1. The eddy currents cause the carriers at the bottom of the first container 1 to move at high speed and randomly. The carriers collide and rub against the atoms to generate heat energy, increasing the temperature inside the first container 1.

[0042] The control device 8 is connected to the heating device 7 and is used to control the heating efficiency of the heating device 7. Generally, if the heating efficiency of an object is the same as its heat dissipation efficiency, it is considered that the object is in thermal equilibrium, that is, the temperature inside the object remains stable. Based on this, when the control device 8 increases the heating efficiency of the heating device 7 so that the heating efficiency of the first container 1 is higher than the heat dissipation efficiency, the temperature inside the first container 1 will increase; when the control device 8 reduces the heating efficiency of the heating device 7 so that the heating efficiency of the first container 1 is lower than the heat dissipation efficiency, the temperature inside the first container 1 will decrease. Specifically, the control device 8 controls the temperature inside the first container 1 to be maintained below the first preset temperature and above the second preset temperature by controlling the heating efficiency of the heating device 7. Among them, the first preset temperature is higher than the melting point temperature of the chocolate. The heating device 3 can heat and melt the chocolate in the temperature range from the melting point temperature of the chocolate to the first preset temperature. In an optional embodiment, since 60 degrees Celsius will cause the sugar in the chocolate to caramelize, in order to maintain the taste of the chocolate, the first preset temperature is set not to be higher than 60 degrees Celsius. In another optional embodiment, in order to keep the chocolate in a molten state all the time, the second preset temperature is set not to be lower than the melting point temperature of the chocolate. Specifically, the chocolate starts to melt at 36 degrees Celsius, so the second preset temperature is at least not lower than 36 degrees Celsius.

[0043] The power supply device 9 is connected to the heating device 7 and the control device 8 and is used to supply power to the heating device 7 and the control device 8. In an optional embodiment, the power supply device 9 includes a power adapter, which directly converts the commercial power into the supply voltage required by the heating device 7 and the control device 8, that is, the chocolate melting device is directly powered by the commercial power. In another optional embodiment, in addition to the power adapter, the power supply device 9 also includes a battery device. The commercial power first charges the battery device, and then the chocolate melting device is powered by the battery device.

[0044] In one embodiment, please refer to Figure 1 , the chocolate melting device further includes a temperature sensor 10 for measuring the temperature inside the first container 1. Specifically, the temperature sensor 10 is disposed near the first container 1. More specifically, the temperature sensor 10 is disposed on the outer surface of the first container 1. The temperature sensor 10 can transmit the temperature inside the first container 1 to the control device 8 in real time. When the temperature inside the first container 1 decreases and reaches the second preset temperature, the control device 8 increases the heating efficiency of the heating device 7 to increase the temperature inside the first container 1; when the temperature inside the first container 1 increases and reaches the first preset temperature, the control device 8 decreases the heating efficiency of the heating device 7 to decrease the temperature inside the first container 1. In an alternative embodiment, the temperature sensor 10 includes, but is not limited to, a thermistor, a thermocouple, and an infrared temperature sensor.

[0045] In one embodiment, the heating device 7 includes a heating mode and a heat preservation mode. When the heating device 7 is in the heating mode, the heating device 7 releases a large amount of heat, causing the temperature inside the first container 1 to rise rapidly; when the heating device 7 is in the heat preservation mode, the heating device 7 releases an appropriate amount of heat, and the heating efficiency of the first container 1 is slightly lower than the heat dissipation efficiency, causing the temperature inside the first container 1 to drop slowly. In an alternative embodiment, the heating device 7 includes at least one heating wire, and the control device 8 controls the heating efficiency of the heating device 7 by changing the working time ratio of the heating wire per unit time. When the working time ratio of the heating wire per unit time is increased, the heating efficiency of the heating device 7 is increased; when the working time ratio of the heating wire per unit time is decreased, the heating efficiency of the heating device 7 is decreased. In another alternative embodiment, the heating device 7 includes at least two heating wires, and the control device 8 controls the heating efficiency of the heating device 7 by changing the number of heating wires in the working state. When the number of heating wires in the working state is increased, the heating efficiency of the heating device 7 is increased; when the number of heating wires in the working state is decreased, the heating efficiency of the heating device 7 is decreased. In a specific embodiment, the heating device 7 includes three heating wires, one heating wire is located at the bottom of the first container 1, and two heating wires are located on the side walls of the first container 1. When the heating device 7 is in the heating mode, all three heating wires are in the working state, and the heating device 7 releases a large amount of heat. When the heating device 7 is in the heat preservation mode, the heating wire at the bottom is in the working state, and the temperature inside the first container 1 drops slowly. In one embodiment, the heating device 7 further includes a standby mode. When the heating device 7 is in the standby mode, no heating wire is in the working state, and the temperature inside the first container 1 drops rapidly.

[0046] In one embodiment, the heating device 7 includes a main heating circuit and a sub-heating circuit. Please refer to Figure 2, the main heating circuit includes a first heating wire R1, a first diode D1 and a first transistor Q1. The working principle of the main heating circuit is as follows: when the heating device 7 is in the heating mode, the first control signal G1 is high, the first transistor Q1 is turned on, the power supply voltage passes through the heating wire and the first transistor Q1 is grounded, the first heating wire R1 is in a working state, and heats the first container 1; when the heating device 7 is in the insulation mode, the first control signal G1 is still high, and the first heating wire R1 heats the first container 1; when the heating device 7 is in the standby mode, the first control signal G1 is low, the first transistor Q1 is turned off, the first diode D1 prevents the power supply voltage from flowing back, the first heating wire R1 cannot form a current loop, the first heating wire R1 is in a non-working state, and cannot heat the first container 1.

[0047] Please refer to Figure 3 , the auxiliary heating circuit includes a second heating wire R2, a second diode D2 and a second transistor Q2. The circuit structure of the auxiliary heating circuit is roughly the same as that of the main heating circuit, except for the control signal of the second transistor Q2. When the heating device 7 is in the heating mode, the second control signal G2 is high, the second transistor Q2 is turned on, and the second heating wire R2 heats the first container 1; when the heating device 7 is in the insulation mode, the second control signal G2 is low, the second transistor Q2 is turned off, and the second heating wire R2 cannot heat the first container 1; when the heating device 7 is in the standby mode, the second control signal G2 is low, the second transistor Q2 is turned off, and the second heating wire R2 cannot heat the first container 1.

[0048] In one embodiment, the chocolate melting device further comprises a display device, and the display device comprises a display circuit. Please refer to Figure 4, the display circuit includes light-emitting diodes LED1, LED2, and LED3. A light-emitting diode needs a certain voltage difference between its anode and cathode to conduct. The normal voltage values of the first voltage V1, the second voltage V2, and the third voltage V3 are set not lower than the supply voltage of the above-mentioned light-emitting diodes. Therefore, under normal conditions, the light-emitting diodes LED1, LED2, and LED3 are in the off state. The working principle of the display circuit is as follows: When the heating device 7 is in the heating mode, the first voltage V1 decreases, and the light-emitting diode LED1 conducts; when the heating device 7 is in the heat preservation mode, the second voltage V2 decreases, and the light-emitting diode LED2 conducts; when the heating device 7 is in the standby mode, the third voltage V3 decreases, and the light-emitting diode LED3 conducts. When the heating device 7 switches modes, the display device will also switch the display lights correspondingly, facilitating the user to know the mode in which the heating device 7 is located. In an optional embodiment, the light-emitting diodes LED1, LED2, and LED3 emit red, green, and white lights respectively. More specifically, the supply voltage is set to 5V, and the first voltage V1, the second voltage V2, and the third voltage V3 are reduced to 3V, 2V, and 1.5V respectively.

[0049] In one embodiment, please refer to Figure 5 , the control device 8 includes a control circuit. The control circuit is used to output a first control signal G1 and a second control signal G2, which are respectively used to control the main heating circuit and the auxiliary heating circuit. The control circuit is also used to output the first voltage V1, the second voltage V2, and the third voltage V3, which are respectively used to control the light-emitting diodes LED1, LED2, and LED3. It was previously described that the control device 8 automatically controls the temperature in the first container 1 through the temperature sensor 10. In an optional embodiment, the control device 8 can also control the temperature in the first container 1 through a signal input by the user. Specifically, please refer to Figure 11When the mechanical button K1 is pressed, an electrical signal is generated, and the control circuit samples this electrical signal. When the mechanical button K1 is pressed for the first time, the control circuit samples the first electrical signal. The control circuit outputs the first control signal G1 and the second control signal G2 as high levels, controlling the heating device 7 to switch to the heating mode. At the same time, the control circuit reduces the first voltage V1 to turn on the light-emitting diode LED1. When the mechanical button K1 is pressed for the second time, the control circuit samples the second electrical signal. The control circuit outputs the first control signal G1 as a high level and the second control signal G2 as a low level, controlling the heating device 7 to switch to the heat preservation mode. At the same time, the control circuit resets the first voltage V1 to turn off the light-emitting diode LED1 and reduces the second voltage V2 to turn on the light-emitting diode LED2. When the mechanical button K1 is pressed for the third time, the control circuit samples the third electrical signal. The control circuit outputs the first control signal G1 and the second control signal G2 as low levels, controlling the heating device 7 to switch to the standby mode. At the same time, the control circuit resets the second voltage V2 to turn off the light-emitting diode LED2 and reduces the third voltage V3 to turn on the light-emitting diode LED3.

[0050] In one embodiment, the power supply device 9 includes a battery device. Specifically, the battery device includes a USB interface circuit, a charging circuit, and a buck circuit. Among them, please refer to Figure 6 , the USB interface circuit is used to provide the voltage VCC. Please refer to Figure 7 , the left side of the charging circuit forms a boost circuit, and the boost circuit charges the battery B on the right side. Specifically, the voltage VCC is boosted by the boost circuit, so that the output voltage of the boost circuit is boosted to 8.8V. Assuming that the battery B has exhausted all its power at this time, that is, the voltage VDD is 0V, then the fourth diode D4 will conduct, and the boost circuit will charge the battery B. When the battery B is fully charged, that is, the voltage VDD is 8.6V, the voltage difference between the anode and cathode of the fourth diode D4 is less than the conduction voltage, and the fourth diode D4 turns off, and the boost circuit stops charging the battery B. Please refer to Figure 8 , the buck circuit is used to reduce the battery voltage to 5V. 5V is the power supply voltage required by the display circuit and the control circuit, and 8.6V in the above text is the power supply voltage required by the main heating circuit and the auxiliary heating circuit. In an alternative embodiment, the charging circuit can also be designed to directly charge the battery B using the voltage VCC, and the main heating circuit and the auxiliary heating circuit are powered by the unboosted voltage VDD. In another alternative embodiment, the charging circuit can also be designed to directly charge the battery B using the voltage VCC, and the voltage VDD is boosted to supply power to the main heating circuit and the auxiliary heating circuit.

[0051] In one embodiment, the control circuit also samples the USB interface voltage VCC and the battery voltage VDD to control the power supply mode of the battery device. In an alternative embodiment, when the battery B is being charged, the main heating circuit and the secondary heating circuit are powered by the voltage VDD, that is, the control circuit allows the battery B to charge while powering the heating wire. In another alternative embodiment, when the control circuit detects that the battery B is being charged, the control circuit switches the supply voltages of the main heating circuit and the secondary heating circuit, and the main heating circuit and the secondary heating circuit are powered by the voltage VCC. In another alternative embodiment, when the control circuit detects that the battery B is being charged, the control circuit switches the main heating circuit and the secondary heating circuit to a non-operating state, and the heating wire stops heating. In another alternative embodiment, when the control circuit detects that the battery B is being charged, if the main heating circuit or the secondary heating circuit is in an operating state at this time, the control circuit will prevent the charging circuit from charging the battery B.

[0052] Please refer to Figure 9 , an alternative embodiment of the present utility model provides a portable chocolate melting fruit plate, which includes a first container 1, a heating device 7, a control device 8, a power supply device 9 and a second container 2.

[0053] Among them, the first container 1, the heating device 7, the control device 8 and the power supply device 9 are as described in the chocolate melting device, and will not be elaborated here.

[0054] The second container 2 includes a bottom and a side wall. The central area of the bottom of the second container 2 is hollowed out to form an inner ring and an outer ring, and the inner ring and the outer ring form a circular ring or a figure similar to a circular ring. The side wall of the second container 2 includes an inner ring side wall and an outer ring side wall. The inner ring side wall is connected to the inner ring of the bottom, and the outer ring side wall is connected to the outer ring of the bottom. A gap is formed between the inner ring side wall and the outer ring side wall of the second container 2 for placing fruits. In an alternative embodiment, between the inner ring side wall and the outer ring side wall, a plurality of partitions are provided, and the partitions can separate different types of fruits. In another alternative embodiment, between the inner ring side wall and the outer ring side wall, a plurality of fourth containers 4 are provided. The fourth container 4 includes a bottom and a side wall. The bottom of the fourth container 4 is in the shape of a sector ring. The side wall of the fourth container 4 is connected to the bottom of the fourth container 4 to enclose a sector ring cavity with an upward opening. The side wall of the fourth container 4 is adapted to the inner ring side wall and the outer ring side wall of the second container 2, so that the fourth container 4 can be fixed on the second container 2, and a plurality of fourth containers 4 can just fill the gap between the inner ring side wall and the outer ring side wall of the second container 2. The sector ring cavity surrounded by the fourth container 4 is used for placing fruits. The sector ring cavities surrounded by a plurality of fourth containers 4 can place various types of fruits, and the fourth container 4 can be detached from the second container 2 to facilitate cleaning of the fruit residues and fruit juices remaining in the fourth container 4. In one embodiment, the second container 2 and the fourth container 4 are made of heat-insulating materials, and the heat-insulating materials include but are not limited to bamboo, wood, ceramics and plastics.

[0055] In one embodiment, please refer to Figure 10 , the chocolate melting device further includes a third container 3. The third container 3 includes a bottom and a side wall. The bottom and the side wall of the third container 3 enclose a cylinder with a top opening. The shape of the cylinder corresponds to the shape of the cylinder of the first container 1. The inner surface of the cylinder encloses a cavity for placing the first container 1. The central hollow area of the second container 2 is for placing the third container 3, and the side wall of the third container 3 is attached to the inner side wall of the inner circle of the second container 2. On the side wall of the third container 3, there are a display lamp 31, a USB interface 32, and a button 33, which respectively cooperate with a display circuit, a USB interface circuit, and a control circuit to achieve corresponding functions.

[0056] In one embodiment, please refer to Figure 11 , the outer surface of the first container 1 is provided with a heat-insulating cavity 11 integrated with the first container 1. The first container 1 and the heat-insulating cavity 11 are placed together in the third container 3. In another embodiment, please refer to Figure 12 , the heat-insulating cavity 11 can also be separated from the first container 1 and arranged in the third container 3. Specifically, a heat-insulating plate is provided in the third container 3. The first container 1 is placed on the heat-insulating plate, and the control device 8 and the power supply device 9 are placed under the heat-insulating plate. The upper surface of the heat-insulating plate and the outer surface of the first container 1 form a heat-insulating cavity 11, which inhibits the transfer of heat downward to the heat-insulating plate and effectively prevents the temperature of the control device 8 and the power supply device 9 from rising. In one embodiment, the heat-insulating cavity 11 is filled with a heat-insulating material, and the heat-insulating material is used to reduce the heat dissipation efficiency of the first container 1. Specifically, the heat-insulating material includes but is not limited to fiberglass insulation cotton, foam board, and rock wool board. In an alternative embodiment, the third container 3 is made of a heat-insulating material, and the heat-insulating material includes but is not limited to bamboo and wood, ceramics, and plastics.

[0057] In one embodiment, please refer to Figure 13, the chocolate fruit plate further includes a base 5 for placing the second container 2 and the third container 3. In one embodiment, the edge area at the bottom of the base 5 has a sliding structure 51 that surrounds it in a circle. A plurality of hollowing devices are provided in the sliding structure 51, and ball bearings 510 are also provided in these hollowing devices. The second container 2 is placed on the ball bearings 510. Since the ball bearings 510 can reduce the friction between the base 5 and the second container 2, when the second container 2 is gently toggled, the second container 2 will rotate, which can help the user get the fruits that are far away from the user. In the central area, the bottom of the base 5 also has a protruding structure 52. The protruding structure 52 is also provided with a first buckle 520 and a second buckle 521 at the top. Among them, the first buckle 520 is used to fix the second buckle 521, and the second buckle 521 is used to prevent the third container 3 from sliding left and right. Specifically, the first buckle 520 has a side wall, and a first buckle assembly extending outward is also provided on the outer side of the side wall of the first buckle 520. A hollow through-hole is provided in the middle of the bottom of the second buckle 521. A plurality of first buckles 520 surround a circle to form a port. Generally, this port is slightly larger than the hollow through-hole of the second buckle 521. If the side wall of the first buckle 520 is squeezed inward from the outside, the side wall of the first buckle 520 will deform inward, so the port will become smaller. When the port is slightly smaller than the hollow through-hole of the second buckle 521, the hollow through-hole of the second buckle 521 is sleeved into this port. When the second buckle 521 abuts against the bottom of the first buckle 520, the squeezing of the first buckle 520 stops. The side wall of the first buckle 520 resets and abuts against the hollow through-hole of the second buckle 521, thereby preventing the second buckle 521 from moving left and right. At the same time, the first buckle assembly of the first buckle 520 can abut against the bottom of the second buckle 521 from top to bottom, thereby preventing the second buckle 521 from moving up and down. In the edge area away from the hollow through-hole, the bottom edge of the second buckle 521 has a second buckle assembly extending upward, and the second buckle assembly just buckles against the lower part of the side wall of the third container 3 to prevent the third container 3 from sliding.

[0058] In one embodiment, please refer to Figure 14, the chocolate melting device further includes a cup cover 6, and the cup cover 6 can help the first container 1 to block dust. In addition, a game turntable is provided inside the cup cover 6, and the game turntable provides an additional form of entertainment for users. Specifically, a rolling bearing is provided inside the game turntable, and a game card paper is provided on the rolling bearing, and the game card paper can rotate following the rolling bearing. An acrylic plate with a magnetic structure is provided above the game card paper, and a metal plate is provided below the game card paper, and the metal plate is a metal magnetic material, so the game card paper can be firmly fixed between the acrylic plate and the metal plate. Various reward and punishment methods are written on the game card paper, and each reward or punishment method occupies a small sector area. A fixed pointer is also provided above the acrylic plate. When the rolling bearing is rotated, the game card paper rotates together with the rolling bearing. When the game card paper stops moving, the pointer will point to the reward or punishment method within the corresponding sector area. In an optional embodiment, a rolling bearing may not be provided inside the game turntable, and the metal plate or the acrylic plate can be directly toggled to rotate the game card paper. In another optional embodiment, the game card paper inside the game turntable is fixed, and the pointer above the acrylic plate is rotated to point to the reward or punishment method inside the game card paper.

[0059] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A chocolate melting device, characterized in that: The chocolate melting device comprises: A first container for placing chocolate; A heating device, located on the outer surface of the first container, for heating the chocolate placed in the first container; a control device connected to the heating device, and used to control the heating efficiency of the heating device, so as to control the temperature in the first container to be maintained below a first preset temperature and above a second preset temperature; wherein the first preset temperature is higher than the melting point of chocolate; and A power supply device is connected to the heating device and the control device, and is used to supply power to the heating device and the control device.

2. The chocolate melting device according to claim 1, characterized in that: The heating device includes at least one heating wire, and the control device controls the heating efficiency of the heating device by changing the working time ratio of the heating wire per unit time. When the working time ratio of the heating wire per unit time is increased, the heating efficiency of the heating device is improved, and when the working time ratio of the heating wire per unit time is reduced, the heating efficiency of the heating device is reduced.

3. The chocolate melting device according to claim 1, characterized in that: The heating device includes at least two heating wires, and the control device controls the heating efficiency of the heating device by changing the number of the heating wires in the working state. When the number of the heating wires in the working state is increased, the heating efficiency of the heating device is improved, and when the number of the heating wires in the working state is reduced, the heating efficiency of the heating device is reduced.

4. The chocolate melting device according to claim 1, characterized in that: When the temperature in the first container is higher than the first preset temperature, the control device reduces the heating efficiency of the heating device so that the heating efficiency is lower than the heat dissipation efficiency; when the temperature in the first container is lower than the second preset temperature, the control device increases the heating efficiency of the heating device so that the heating efficiency is higher than the heat dissipation efficiency.

5. The chocolate melting device according to claim 1, characterized in that: A heat-insulating material is also provided on the outer surface of the heating device, and the heat-insulating material is used to reduce the heat dissipation efficiency of the first container.

6. The chocolate melting device according to claim 1, characterized in that: The chocolate melting device also includes a cup cover, which includes a rolling bearing, a game card, an acrylic plate and a metal plate, wherein the acrylic plate has a magnetic structure, is magnetically attracted to the metal plate, and fixes the game card between the acrylic plate and the metal plate, and the game card is located above the rolling bearing. When the rolling bearing is turned, the game card rotates with the rolling bearing.

7. A portable chocolate melting fruit tray, comprising the chocolate melting device according to any one of claims 1 to 6, characterized in that: Also included is a second container, wherein the second container is used for placing fruits.

8. The chocolate melting fruit plate according to claim 7, characterized in that: The chocolate melting device further comprises a third container, in which an upper part and a lower part are arranged, the first container is placed in the upper part of the third container, and the control device and the power supply device are placed in the lower part of the third container.

9. The portable chocolate melting fruit tray according to claim 8, characterized in that: The portable chocolate melting fruit tray also includes a base, which includes a middle part and an edge part. The middle part of the base is provided with a protruding structure, and the edge part of the base is provided with a sliding structure. The second container is placed on the sliding structure, and the third container is placed on the protruding structure. When the second container is moved, the sliding structure is used to rotate the second container, and the protruding structure is used to prevent the third container from sliding left and right.

10. The portable chocolate melting fruit tray according to claim 9, characterized in that: The raised structure includes a first buckle and a second buckle, the first buckle having a side wall, a first buckle component extending outward is provided on the outer side of the side wall of the first buckle, the second buckle has a bottom, a hollow opening is provided in the middle of the bottom of the second buckle, and a second buckle component extending upward is provided on the bottom edge of the second buckle, wherein the side walls of multiple first buckles abut against the hollow opening of the second buckle from the inside to the outside to prevent the second buckle from moving left and right, the first buckle components of multiple first buckles abut against the bottom of the second buckle from top to bottom to prevent the second buckle from moving up and down, and the second buckle component of the second buckle abuts against the third container to prevent the third container from sliding.

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