Cooling and heating chopping board

Abstract

The invention discloses a cooling and heating chopping board which comprises a bottom shell, a refrigeration sheet, a heat and cold conduction sheet, a panel and a circuit board, the panel is installed at the upper end of the bottom shell, an installation cavity is defined by the panel and the bottom shell, and the heat and cold conduction sheet, the refrigeration sheet and the circuit board are all installed in the installation cavity; the heat conduction and cold conduction sheet and the refrigeration sheet are sequentially arranged at the lower end of the panel from top to bottom, the refrigeration sheet is electrically connected with the circuit board, a control device electrically connected with the circuit board is arranged on the panel, and the control device is used for controlling the circuit board to provide forward current for the refrigeration sheet for refrigeration. Or the control circuit board provides reverse current for the refrigeration sheet for heating. According to the cooling and heating chopping board, heating and refrigerating can be achieved through the refrigerating pieces, so that when the cooling and heating chopping board achieves heating or refrigerating, the areas covered by all the refrigerating pieces can be synchronously heated or refrigerated, and the problem that the temperature on the panel is not uniform when different parts are adopted for heating and refrigerating is solved.

Description

Technical Field

[0001] The present application relates to a dish heating device and the technical field of food heat preservation devices, and in particular to a cold and warm chopping board. Background Art

[0002] The invention patent with announcement number CN217090435U provides a heat preservation device, which includes a shell, a panel, a temperature control element and a heating element. The shell and the panel together form a receiving cavity. The temperature control element and the heating element are both attached to the side of the panel facing the receiving cavity, and the orthographic projections of the temperature control element and the heating element on the panel do not overlap each other; the temperature control element has at least a cooling function. Thus, the temperature control element and the heating element can heat or cool the food placed on the panel through the panel, so that the heat preservation device not only has a heating function, which can heat food, but also has a cooling function, which can preserve food.

[0003] In the thermal insulation device recorded in the above-mentioned invention patent document, the orthographic projections of the temperature control component and the heating component on the panel do not overlap with each other, and two different components are used for heating and cooling. When the temperature control component and the heating component of the thermal insulation device are working separately, it will at least cause a large temperature difference between the areas covered by the temperature control component and the heating component, affecting the temperature uniformity on the panel and affecting the thermal insulation and cooling effects of the thermal insulation device on the dishes. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a hot and cold vegetable plate with a more uniform temperature, and the technical solution adopted includes:

[0005] A cold and warm chopping board comprises a bottom shell, a refrigeration sheet, a heat-conducting and cold-conducting sheet, a panel and a circuit board, wherein the panel is mounted on the upper end of the bottom shell and enclosed therewith to form a mounting cavity, the heat-conducting and cold-conducting sheet, the refrigeration sheet and the circuit board are all mounted in the mounting cavity, and the heat-conducting and cold-conducting sheet and the refrigeration sheet are sequentially arranged at the lower end of the panel from top to bottom, the refrigeration sheet is electrically connected to the circuit board, a control device electrically connected to the circuit board is provided on the panel, and the control device is used to control the circuit board to provide a forward current to the refrigeration sheet for cooling, or to control the circuit board to provide a reverse current to the refrigeration sheet for heating.

[0006] A technical solution adopted by an embodiment of the present invention to solve its technical problem is: a ventilation hole connected to the outside is provided on the bottom shell, and a fan electrically connected to the circuit board is also provided in the installation cavity.

[0007] A technical solution adopted by an embodiment of the present invention to solve its technical problem is: the fan is arranged on a side of the cooling fin away from the panel, and the fan is used to blow air from one side close to the panel to the other side.

[0008] A technical solution adopted by an embodiment of the present invention to solve the technical problem is: the material of the heat-conducting and cooling-conducting sheet is a material with a thermal conductivity greater than or equal to 50 W / mk.

[0009] A technical solution adopted by an embodiment of the present invention to solve the technical problem is: the cooling plate is provided with one, two or more cooling plates.

[0010] An embodiment of the present invention adopts a technical solution to solve its technical problem: it also includes a temperature sensor arranged in the installation cavity and electrically connected to the circuit board, and the temperature sensor is used to detect the temperature of the heat-conducting and cooling plate and / or the panel.

[0011] A technical solution adopted by an embodiment of the present invention to solve the technical problem is: the cooling plate is bonded to the lower end of the heat-conducting and cooling plate by heat-conducting glue.

[0012] A technical solution adopted by an embodiment of the present invention to solve the technical problem is: the heat-conducting and cooling-conducting sheet is bonded to the lower end of the panel by heat-conducting glue.

[0013] A technical solution adopted by an embodiment of the present invention to solve the technical problem is: it also includes a heat-insulating cover, and the heat-insulating cover is used to cover the panel for heat preservation.

[0014] A technical solution adopted by an embodiment of the present invention to solve its technical problem is: an AC to DC module is also provided on the circuit board, and the AC to DC module is used to convert the AC power input to the circuit board into DC power.

[0015] When a forward current is passed through the cooling sheet, the cooling sheet cools; when a reverse current is passed through the cooling sheet, the cooling sheet heats; the present application adopts the cooling sheet as a heat source and a cold source, and realizes the switching of the cooling sheet heating and cooling by controlling the direction of the current passed through the cooling sheet. The heating and cooling can be realized by using the cooling sheet as a component, so that when the cold and warm vegetable board realizes heating or cooling, all areas covered by the cooling sheet can be heated or cooled synchronously, which solves the problem of uneven temperature on the panel caused by using different components for heating and cooling;

[0016] The present application also uses a heat-conducting and cooling plate disposed between the refrigeration plate and the panel. The heat-conducting and cooling plate has an excellent thermal conductivity coefficient, so that the cold and heat generated by the refrigeration plate can be evenly transferred to the panel under the action of the heat-conducting and cooling plate, which is beneficial to further improve the temperature uniformity on the panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural explosion diagram of the cold and warm vegetable board described in an embodiment of the present application. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, the meaning of "above", "below", "exceed", etc. is not inclusive of the number itself, and the meaning of "above", "below", "within", etc. is inclusive of the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0022] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0023] Reference Figure 1 , an embodiment of the present application is proposed, the cold and warm vegetable plate in this embodiment includes a bottom shell 10, a refrigeration sheet 20, a heat-conducting and cold-conducting sheet 30, a panel 40 and a circuit board 50, the panel 40 is installed on the upper end of the bottom shell 10 and encloses it to form an installation cavity, the heat-conducting and cold-conducting sheet 30, the refrigeration sheet 20 and the circuit board 50 are all installed in the installation cavity, and the heat-conducting and cold-conducting sheet 30 and the refrigeration sheet 20 are arranged in sequence from top to bottom at the lower end of the panel 40, the refrigeration sheet 20 is electrically connected to the circuit board 50, and a control device 70 electrically connected to the circuit board 50 is provided on the panel 40, and the control device 70 is used to control the circuit board 50 to provide a forward current to the refrigeration sheet 20 for cooling, or control the circuit board 50 to provide a reverse current to the refrigeration sheet 20 for heating.

[0024] When a forward current is passed through the cooling sheet 20, the cooling sheet 20 cools; when a reverse current is passed through the cooling sheet 20, the cooling sheet 20 heats; the present application uses the cooling sheet 20 as a heat source and a cold source, and realizes the switching of heating and cooling of the cooling sheet 20 by controlling the direction of the current passed through the cooling sheet 20. The cooling sheet 20 can be used as a component to achieve heating and cooling, so that when the cold and warm vegetable plate is heated or cooled, all areas covered by the cooling sheet 20 can be heated or cooled simultaneously, which solves the problem of uneven temperature on the panel 40 caused by using different components for heating and cooling;

[0025] The present application also uses a heat-conducting and cooling plate 30 disposed between the refrigeration plate 20 and the panel 40. The heat-conducting and cooling plate 30 has an excellent thermal conductivity coefficient, so that the cold and heat generated by the refrigeration plate 20 can be evenly transferred to the panel 40 under the action of the heat-conducting and cooling plate 30, which is beneficial to further improve the temperature uniformity on the panel 40.

[0026] Changing the current direction of the cooling plate 20 by means of the circuit board 50 belongs to the prior art in this field, and the specific circuit and working principle on the circuit board 50 are not described in detail in this application.

[0027] In this embodiment, the cold and warm cooking board is powered by a 24V or 48V DC power supply. In order to make the cold and warm cooking board suitable for outdoor power supply and municipal power supply, the circuit board 50 is also provided with an AC to DC module, such as a rectifier bridge. The AC to DC module is used to convert the AC power input to the circuit board 50 into DC power. The cold and warm cooking board can be powered by a DC adapter indoors and by a battery DC power supply or a solar panel outdoors to adapt to indoor or outdoor use.

[0028] The panel 30 is also provided with a display screen electrically connected to the circuit board 50. The control device 70 includes a temperature adjustment key 71 and a cooling / heating switching key 72, so that the user can adjust the temperature according to his own needs. The warming plate can also be switched to cooling or keeping warm mode according to needs.

[0029] The panel 30 may be made of glass or a heat-conducting metal plate. The glass may be microcrystalline glass or tempered glass. The metal plate may be stainless steel. The present application does not specifically limit the material of the panel 30 .

[0030] In this embodiment, the heat-conductive and cooling sheet 30 is bonded to the lower end of the panel 40 by thermally conductive glue, and the cooling sheet 20 is bonded to the lower end of the heat-conductive and cooling sheet 30 by thermally conductive glue to achieve the installation of the heat-conductive and cooling sheet 30 and the cooling sheet 20, while avoiding affecting the heat transfer between the cooling sheet 20 and the heat-conductive and cooling sheet 30, and between the heat-conductive and cooling sheet 30 and the panel 40.

[0031] Preferably, a ventilation hole 11 communicating with the outside is provided on the bottom shell 10 , and a fan 60 electrically connected to the circuit board 50 is also provided in the installation cavity, and the fan 60 is used to exchange heat between the installation cavity and the outside through the ventilation hole 11 .

[0032] When the refrigeration fin 20 is cooling on the side close to the panel 40, the side of the refrigeration fin 20 facing away from the panel 40 will also generate heat simultaneously; when the refrigeration fin 20 is heating on the side close to the panel 40, the side of the refrigeration fin 20 facing away from the panel 40 will also generate cold energy simultaneously. The fan 60 is used to blow the heat or cold energy in the installation cavity out of the installation cavity to ensure the normal operation of the refrigeration fin 20 and the cooling / heating efficiency of the refrigeration fin 20.

[0033] Specifically, the fan 60 is disposed on a side of the cooling fin 20 away from the panel 40, and the fan 60 is used to blow air from the side close to the panel 40 to the other side, so as to improve the heat dissipation or cooling efficiency of the fan 60 to the cooling fin 20. In this embodiment, the ventilation holes 11 are disposed on the bottom wall and both side walls of the bottom shell 10, so that the air in the installation cavity is convected through the bottom wall and both side walls of the bottom shell 10 to achieve heat dissipation. In another embodiment, the ventilation holes 11 are only disposed on both side walls of the bottom shell, and the air in the installation cavity is convected through the ventilation holes on both side walls of the bottom shell 10 to achieve heat dissipation.

[0034] The number of cooling fins 20 provided at the lower end of the panel 40 can be arranged according to the size area of ​​the heat-conducting cooling fin 30. The cooling fin 20 can be one, two or more. In the present embodiment, a plurality of cooling fins 20 are provided, and the plurality of cooling fins 20 are arranged at intervals at the lower end of the heat-conducting cooling fin 30. The arrangement of the cooling fins 20 can be adjusted according to the shape of the heat-conducting cooling fin 30.

[0035] In order to ensure the thermal conductivity of the heat-conducting and cooling plate 30, the material of the heat-conducting and cooling plate 30 is selected from materials with a thermal conductivity greater than or equal to 50W / mk. The preferred materials are gold, silver, copper, aluminum, aluminum alloy, iron or steel. The heat-conducting and cooling plate 30 in this embodiment is made of aluminum, which has a higher cost performance.

[0036] Preferably, it also includes a temperature sensor 80 arranged in the installation cavity and electrically connected to the circuit board 50, the temperature sensor 80 is used to detect the temperature of the heat-conducting and cooling plate 30, the temperature sensor 80 is used to detect the temperature of the heat-conducting and cooling plate 30 and send it to the circuit board 50, and the circuit board controls the operation of the cooling plate 20 according to the result of the temperature detection.

[0037] Furthermore, as a preference, the cold and warm dish board also includes a heat preservation cover 90, and the heat preservation cover 90 is covered on the panel 40. The area of ​​the panel 40 corresponding to the heat-conducting and cooling plate 30 forms a cooling / heating area. The user places dishes that need to be kept warm or cooled on the cooling / heating area, and the heat preservation cover 90 covers the corresponding cooling / heating area on the panel 40 inside it, thereby improving the heating or cooling effect.

[0038] The shape of the hot and cold cutting board of the present application can be designed according to the needs, for example, it can be designed to be round, square, polygonal or other irregular shapes. Accordingly, the shape of the heat-conducting and cooling plates, the number of cooling plates and the arrangement method are also adaptively adjusted according to the appearance of the hot and cold cutting board.

[0039] The cold and warm chopping board can also be fixed on the turntable of the dining table. While satisfying the rotation function of the turntable, it can also make the turntable cool or keep warm the dishes;

[0040] The cold and warm chopping boards can be fixed on the dining table in an embedded manner to improve the aesthetics of the dining table; the cold and warm chopping boards can be combined with the induction cooker head and fixed on the dining table to meet different usage scenarios. For example, there are multiple cold and warm chopping boards on the dining table, and multiple cold and warm chopping boards are designed around the induction cooker head, or one cold and warm chopping board and multiple induction cooker heads surrounding the cold and warm chopping board are designed on the dining table to meet the needs of keeping the dishes warm / cool while eating hot pot.

[0041] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A cold and warm vegetable board, characterized in that: The invention comprises a bottom shell (10), a refrigeration sheet (20), a heat-conducting and cooling sheet (30), a panel (40) and a circuit board (50), wherein the panel (40) is mounted on the upper end of the bottom shell (10) and encloses the bottom shell (10) to form a mounting cavity, wherein the heat-conducting and cooling sheet (30), the refrigeration sheet (20) and the circuit board (50) are all mounted in the mounting cavity, and the heat-conducting and cooling sheet (30) and the refrigeration sheet (20) are sequentially arranged at the lower end of the panel (40) from top to bottom, wherein the refrigeration sheet (20) is electrically connected to the circuit board (50), and wherein a control device (70) electrically connected to the circuit board (50) is provided on the panel (40), wherein the control device (70) is used to control the circuit board (50) to provide a forward current to the refrigeration sheet (20) for cooling, or to control the circuit board (50) to provide a reverse current to the refrigeration sheet (20) for heating.

2. The cold and warm vegetable board according to claim 1, characterized in that: The bottom shell (10) is provided with a ventilation hole (11) communicating with the outside, and the installation cavity is also provided with a fan (60) electrically connected to the circuit board (50).

3. The cold and warm vegetable board according to claim 2, characterized in that: The fan (60) is arranged on a side of the cooling fin (20) away from the panel (40), and the fan (60) is used to blow air from one side close to the panel (40) to the other side.

4. The cold and warm vegetable board according to claim 1, characterized in that: The heat-conducting and cooling-conducting sheet (30) is made of a material having a thermal conductivity greater than or equal to 50 W / mk.

5. The cold and warm vegetable board according to claim 1, characterized in that: The refrigeration fins (20) are provided with one, two or more refrigeration fins (20).

6. The cold and warm vegetable board according to claim 1, characterized in that: It also includes a temperature sensor (80) disposed in the installation cavity and electrically connected to the circuit board (50), wherein the temperature sensor (80) is used to detect the temperature of the heat-conducting and cooling plate (30) and / or the panel (40).

7. The cold and warm vegetable board according to claim 1, characterized in that: The cooling plate (20) is bonded to the lower end of the heat-conducting and cooling plate (30) by means of heat-conducting glue.

8. The cold and warm vegetable board according to claim 1, characterized in that: The heat-conducting and cooling-conducting sheet (30) is bonded to the lower end of the panel (40) by means of heat-conducting glue.

9. The cold and warm vegetable board according to claim 1, characterized in that: It also includes a heat-insulating cover (90), which is used to cover the panel (40) for heat preservation.

10. The cold and warm vegetable board according to claim 1, characterized in that: The circuit board (50) is also provided with an AC-to-DC module, and the AC-to-DC module is used to convert the AC power input to the circuit board (50) into DC power.

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