Cooling and heating chopping board

Abstract

The utility model discloses a cooling and heating chopping board which comprises a bottom shell, a refrigeration sheet, a heat conduction 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 conduction 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 application relates to a dish heating device and a food temperature maintaining device, and particularly relates to a cold and warm chopping board. BACKGROUND

[0002] The utility model discloses a kind of heat preservation appliances, heat preservation appliance includes shell, panel, temperature control piece and heating piece, shell and panel are collectively enclosed to hold cavity, temperature control piece and heating piece are attached to the side of panel towards hold cavity, and the orthographic projection of temperature control piece and heating piece on panel does not coincide with each other;Temperature control piece at least has refrigeration function.Thereby temperature control piece and heating piece can be via panel to heat or refrigerate food placed on panel, to make heat preservation appliance not only have heating function, can heat food, and have refrigeration function, can save food.

[0003] In the heat preservation appliance described in the above utility model patent document, the orthographic projection of the temperature control piece and the heating piece on the panel does not coincide with each other, two different components are used for heating and refrigeration. When the temperature control piece and the heating piece of the heat preservation appliance work respectively, there is a large temperature difference between the areas covered by the temperature control piece and the heating piece, which affects the temperature uniformity on the panel and affects the heat preservation and refrigeration effect of the heat preservation appliance on the dishes. SUMMARY

[0004] The present utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the present utility model provides a cold and warm chopping board with more uniform temperature, which employs the technical scheme comprising:

[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. The panel is installed on the upper end of the bottom shell and encloses with the bottom shell to form an installation cavity. The heat-conducting and cold-conducting sheet, the refrigeration sheet and the circuit board are all installed in the installation cavity. The heat-conducting and cold-conducting sheet and the refrigeration sheet are arranged in sequence from top to bottom at the lower end of the panel. The refrigeration sheet is electrically connected with the circuit board. The panel is provided with a control device electrically connected with the circuit board. The control device is used to control the circuit board to provide forward current to the refrigeration sheet for refrigeration or to provide reverse current to the refrigeration sheet for heating.

[0006] In one embodiment of the present utility model, a ventilation hole is provided on the bottom shell and in communication with the outside. A fan is further provided in the installation cavity and electrically connected with the circuit board.

[0007] In one embodiment of the present utility model, the fan is arranged on the side of the refrigeration sheet away from the panel, and the fan is used to blow air from the side close to the panel to the other side.

[0008] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the material of the heat-conducting and cold-conducting sheet adopts a material with a heat conductivity coefficient greater than or equal to 50 W / mk.

[0009] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the refrigerating sheet is provided with one, two or more.

[0010] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the temperature sensor is arranged in the mounting cavity and electrically connected with the circuit board, and the temperature sensor is used for detecting the temperature of the heat-conducting and cold-conducting sheet and / or the panel.

[0011] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the refrigerating sheet is adhered to the lower end of the heat-conducting and cold-conducting sheet through heat-conducting glue.

[0012] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the heat-conducting and cold-conducting sheet is adhered to the lower end of the panel through heat-conducting glue.

[0013] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the heat-conducting and cold-conducting sheet is adhered to the lower end of the panel through heat-conducting glue.

[0014] The technical scheme adopted by the embodiment of the utility model for solving the technical problem is that the circuit board is further provided with an AC-DC module, and the AC-DC module is used for converting AC power input to the circuit board into DC power.

[0015] When the refrigerating sheet is input with forward current, the refrigerating sheet refrigerates; when the refrigerating sheet is input with reverse current, the refrigerating sheet heats; the application adopts the refrigerating sheet as a heat source and a cold source, realizes the switching of refrigeration and heating of the refrigerating sheet by controlling the direction of the current input to the refrigerating sheet, adopts the refrigerating sheet as one component to realize heating and refrigeration, so that when the cold and warm panel realizes heating or refrigeration, all the areas covered by the refrigerating sheet can realize synchronous heating or refrigeration, and the problem of uneven temperature on the panel caused by using different components for heating and refrigeration is solved.

[0016] The application further adopts the heat-conducting and cold-conducting sheet arranged between the refrigerating sheet and the panel, and the heat-conducting and cold-conducting sheet has excellent heat conductivity, so that the cold and heat generated by the refrigerating sheet can be uniformly transmitted to the panel under the action of the heat-conducting and cold-conducting sheet, and the temperature uniformity on the panel is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:

[0018] Figure 1 The structure explosion drawing of the cold and warm chopping board is described in the embodiments of the present application. DETAILED DESCRIPTION

[0019] This part will describe the specific embodiments of the present application in detail, and the preferred embodiments of the present application are shown in the drawings, and the drawings are used to supplement the description of the text part, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0020] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, within, etc. is included in the number. If there is a description of the first, the second is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0021] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not indicative or implied that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0022] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication or interaction relationship of two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0023] Reference Figure 1, propose the embodiments of the present application, the cold and warm chopping board described in the embodiments 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 enclosed with it to form a mounting cavity, the heat-conducting and cold-conducting sheet 30, the refrigeration sheet 20 and the circuit board 50 are all installed in the mounting cavity, and the heat-conducting and cold-conducting sheet 30 and the refrigeration sheet 20 are sequentially arranged from top to bottom at the lower end of the panel 40, the refrigeration sheet 20 is electrically connected with the circuit board 50, the panel 40 is provided with a control device 70 electrically connected with the circuit board 50, and the control device 70 is used to control the circuit board 50 to provide a forward current to the refrigeration sheet 20 to refrigerate or control the circuit board 50 to provide a reverse current to the refrigeration sheet 20 to heat.

[0024] When the refrigeration sheet 20 is connected with a forward current, the refrigeration sheet 20 refrigerates; when the refrigeration sheet 20 is connected with a reverse current, the refrigeration sheet 20 heats; the present application uses the refrigeration sheet 20 as a heat source and a cold source, and realizes the switching of the refrigeration sheet 20 heating and refrigerating by controlling the direction of the current connected to the refrigeration sheet 20, and uses the refrigeration sheet 20 to realize heating and refrigerating, so that all the areas covered by the refrigeration sheet 20 can be heated or refrigerated synchronously when the cold and warm chopping board realizes heating or refrigerating, thereby solving the problem of uneven temperature on the panel 40 caused by using different components for heating and refrigerating;

[0025] And the present application also uses the heat-conducting and cold-conducting sheet 30 arranged between the refrigeration sheet 20 and the panel 40, and the heat-conducting and cold-conducting sheet 30 has excellent heat conductivity, so that the cold and heat generated by the refrigeration sheet 20 can be uniformly transmitted to the panel 40 under the action of the heat-conducting and cold-conducting sheet 30, which is beneficial to further improve the temperature uniformity on the panel 40.

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

[0027] In the embodiments, the cold and warm chopping board uses 24V or 48V direct current power supply for power supply, in order to make the cold and warm chopping board suitable for outdoor power supply and municipal power supply, the circuit board 50 is also provided with an AC-DC module, such as a rectifier bridge, which is used to convert the AC power input to the circuit board 50 into DC power, and the cold and warm chopping board can be powered by an adapter in a room, and can be powered by a battery or a solar panel in the outdoor, so as to adapt to indoor or outdoor scenes.

[0028] The panel 30 is also provided with a display screen electrically connected with the circuit board 50, and the control device 70 includes a temperature adjusting key 71 and a refrigeration / heating switching key 72, so as to facilitate users to adjust the temperature according to their own needs, and the warm chopping board can also be switched to a refrigeration or heat preservation mode according to the needs.

[0029] The material of the panel 30 can be glass or heat-conducting metal plate. The glass can be microcrystalline glass or tempered glass, and the metal plate can be stainless steel. The material of the panel 30 is not limited in the present application.

[0030] In the embodiment, the heat-conducting and cooling sheet 30 is bonded to the lower end of the panel 40 by heat-conducting glue, and the cooling sheet 20 is bonded to the lower end of the heat-conducting and cooling sheet 30 by heat-conducting glue to realize the installation of the heat-conducting and cooling sheet 30 and the cooling sheet 20, and meanwhile, the heat transfer between the cooling sheet 20 and the heat-conducting and cooling sheet 30 and between the heat-conducting and cooling sheet 30 and the panel 40 is avoided.

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

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

[0033] Specifically, the fan 60 is arranged on the side of the cooling sheet 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 to provide the heat dissipation or cold dissipation efficiency of the fan 60 to the cooling sheet 20. In the embodiment, the ventilation hole 11 is arranged on the bottom wall and the two side walls of the bottom shell 10 to make the air in the mounting cavity convect to realize heat dissipation through the bottom wall and the two side walls of the bottom shell 10. In another embodiment, the ventilation hole 11 is arranged only on the two side walls of the bottom shell, and the air in the mounting cavity convects to realize heat dissipation through the ventilation holes on the two side walls of the bottom shell 10.

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

[0035] In order to ensure the heat conduction efficiency of the heat conduction sheet 30, the material of the heat conduction sheet 30 is selected from materials with a heat conductivity greater than or equal to 50 W / mk, and the preferred materials are gold, silver, copper, aluminum, aluminum alloy, iron or steel. In the embodiment, the heat conduction sheet 30 is made of aluminum material, which is more cost-effective.

[0036] As a preferred, the temperature sensor 80 is arranged in the mounting cavity and electrically connected with the circuit board 50, and the temperature sensor 80 is used for detecting the temperature of the heat conduction sheet 30. The temperature sensor 80 is used for detecting the temperature of the heat conduction sheet 30 and sending the temperature to the circuit board 50, and the circuit board controls the operation of the refrigeration sheet 20 according to the temperature detection result.

[0037] Further, as a preferred, the cold and warm food plate further comprises a heat preservation cover 90, the heat preservation cover 90 covers the panel 40, and the panel 40 forms a refrigeration / heat area corresponding to the area of the heat conduction sheet 30. The user places the food that needs to be heated or refrigerated on the refrigeration / heat area, and the heat preservation cover 90 covers the corresponding refrigeration / heat area of the panel 40 in the inside, thereby improving the heating or refrigeration effect.

[0038] The shape of the cold and warm food plate can be designed according to the needs, for example, it can be designed into a circular shape, a square shape, a polygonal shape or other irregular shapes. Correspondingly, the shape of the heat conduction sheet, the number and arrangement of the refrigeration sheet are also adaptively adjusted according to the shape of the cold and warm food plate.

[0039] The cold and warm food plate can be fixed on the rotating disc of the dining table, so as to meet the rotation function of the rotating disc and refrigerate or heat the food on the rotating disc.

[0040] The cold and warm food plate can be fixed on the dining table in an embedded manner to improve the aesthetics of the dining table. The cold and warm food plate can be combined with the electromagnetic induction cooker head and fixed on the dining table to meet different use scenarios. For example, multiple cold and warm food plates are arranged around the electromagnetic induction cooker head, or one cold and warm food plate is arranged on the dining table and multiple electromagnetic induction cooker heads are arranged around the cold and warm food plate, so as to meet the needs of eating hot pot while heating or refrigerating the food.

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

Claims

1. A hot and cold vegetable plate, 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 an installation cavity, wherein the heat-conducting and cooling sheet (30), the refrigeration sheet (20) and the circuit board (50) are all mounted in the installation 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, 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), 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 hot and cold vegetable plate 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 hot and cold vegetable plate according to claim 2, characterized in that: The fan (60) is arranged on a side of the refrigeration 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 hot and cold vegetable plate according to claim 1, characterized in that: The heat-conducting and cooling-conducting sheet (30) is made of a material with a thermal conductivity greater than or equal to 50 W / mk.

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

6. The hot and cold vegetable plate 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 hot and cold vegetable plate 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 hot and cold vegetable plate 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 hot and cold vegetable plate 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 insulation.

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

Images