KR200285419Y1 - Refrigerating/thermos vessel for foods - Google Patents

Abstract

The present invention relates to a hot and cold food container,

Depending on the thermoelectric element's operating mode, a separate plate is mounted on a cold plate or a cold plate, which acts as an on-board, while depending on the specifications, a wooden liner around the plastic frame By constructing a structure that is covered with

Its practicality and aesthetics have a further improved effect.

Description

Refrigerating / thermos vessel for foods}

The present invention relates to a cold and hot food container, more specifically, to a cold and hot food container for storing food at a low temperature or a high temperature state of a certain temperature, the practical use and aesthetics of the cold and hot food container.

In addition to improving living standards, food culture has also brought about an unparalleled transition.

For example, the flourishing of the food industry, that is, buffet restaurants or banquet halls, is often seen, and many suitable food containers have been developed.

According to the invention of Korean Patent Application No. 10-2000-0068268 filed by the applicant of the utility model registration application, by using the characteristics of the thermoelectric element, food is kept at a low temperature or high temperature state Utensils have been developed.

However, since the tableware of the conventional structure is intended to contain food directly on the outer case, the task of washing the entire tableware after use is quite cumbersome, and there is a problem in that the type of food cannot be changed during use.

In addition, since the overall appearance of the tableware is made of a synthetic resin material and a metal material, there was a feeling that the aesthetical refinement is somewhat reduced.

The present invention has been made in view of such a conventional problem, and an object thereof is to provide a cold and hot food container with improved practicality and aesthetics.

1 is a front sectional view showing a hot and cold food container of the present invention embodiment,

2 is an exploded perspective view showing a cold and hot food container of the embodiment;

3 is a perspective view showing the cold and hot food container.

Explanation of symbols on the main parts of the drawings

1: hot and cold food container 11: frame

12 heat sink 13 thermoelectric element

14: cold sink 15: cold plate

16: plate 17: insulation

18: blower 19: power supply

20: control unit 21: temperature sensor

22: ventilation guide 23: grill

24: border plate 25: wooden liner

The cold and hot food container of the present invention for achieving the above object is to mount a separate dish on a cold or hot plate serving as a cold plate or a hot plate depending on the operating mode of the thermoelectric element. On the other hand, the frame is made of a synthetic resin material overlaid with a wooden liner (liner).

That is, without using the entire food container after washing in the banquet hall, etc., it is possible to simply remove and wash only the dish, as well as to easily move the dish containing the food to another container during use. Its features have markedly increased practicality.

In addition, by forming the outer appearance of the food container with a wooden liner, it is possible to obtain an effect such as creating a luxurious atmosphere.

Hereinafter, the food container of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, when a direct current power is applied to a device composed of two different metals, a thermal gradient is formed between both surfaces, that is, one surface has a high temperature and the other surface has a low temperature (Peltier effect In the use of the so-called thermoelectric semiconductor or thermoelectric element having a)) has the same as the invention of the Republic of Korea Patent Application No. 10-2000-0068268 mentioned above, the present invention is of course added some components as compared to the invention of the patent application Since the structure is also quite different, the overall details including the principle of operation will be described again in detail.

1 is a front sectional view showing a food container of the present invention.

According to the drawings, the food container 1 of the present invention, the cylindrical frame 11 is formed with a through-hole on the central portion and the outer peripheral surface of the top surface; A heat sink 12 below the top surface of the frame 11 and coupled to a central portion thereof in a through hole on the top surface; A thermoelectric element 13 as a hot or cold air source, disposed on the top surface of the heat sink 12; A cold sink 14 serving as a heat supply or discharge passage disposed on an upper surface of the thermoelectric element 13; A cold hot plate 15 and a plate 16 mounted thereon, which are coupled to the upper surface of the cold sink and also to the frame 11 and have depressions formed at the center thereof as plate seats; A heat insulating material (17) inserted between the frame (11) and the cold plate (15); A blower (18) disposed adjacent said heat sink (12) for discharging heat therefrom; A power supply unit 19 for converting an AC current from the outside into a DC current and supplying the thermoelectric element 13 and other related components; It is comprised including the control apparatus part 20 containing the changeover switch 20-a for the "cold-proof" or "warm-hold" mode selection of the said cold plate 15. As shown in FIG.

Preferably, by attaching a temperature sensor 21 on the heat sink 12 and connecting it to the control device 20, the heat sink 12 and the cold plate 15 coupled thereto Keep the temperature constant.

The temperature sensor 21 may be attached to a position other than the cold sink 14, that is, the bottom surface of the cold plate 15.

On the other hand, the control unit 20 is a changeover switch 20-a as described above, the instrument panel 20-b and the temperature setting lever 20-c shown on the perspective view of FIG. It comprises a micro-processor (not shown) embedded in the box as a.

The instrument panel 20-b serves to display the current temperature state measured by the temperature sensor 21, and the microprocessor is configured to display the temperature set by the temperature setting lever 20-c and the measured temperature. In comparison, the food on the dish 16 is always maintained at a constant temperature by supplying or blocking current to the thermoelectric element 13.

In addition, in the illustrated embodiment, the ventilation guide 22 having a shape surrounding the heat sink 12 is coupled to the lower side of the lower surface of the frame 11 and the blower 18 is disposed on the lower end thereof. ), The heat from the heat sink 12 can be discharged more smoothly.

In the case of the blower 18, the heat sink 12 is installed on the lower end of the heat sink 12, and the heat is discharged downward therefrom. It can also be set as a structure which blows perpendicularly with respect to.

In any case, it is preferable to prevent the mixing of foreign matter as much as possible by providing grills 23 in front and rear of the heat sink 12.

Since the heat sink 12 and the cold sink 14 should be able to smoothly supply the cold air to the cold plate 15 or discharge the hot air therefrom, the heat sink 12 and the cold sink 14 are made of a material such as aluminum (Al) having excellent thermal conductivity. .

In order to smoothly discharge the heat, the heat sink 12 is formed with a plurality of deep grooves in the longitudinal direction, so that a sufficient heat dissipation area is ensured.

The cold and hot plate 15 is made of a metal plate having good thermal conductivity and corrosion resistance, and the plate 16 mounted thereon needs to be made of a metal material that is harmless to the human body since it is a container for directly containing food.

The heat insulator 17 may be configured to suppress the outflow of hot or cold air from the cold plate 15 so that the food on the cold plate 15 may be maintained in an optimal state, and may be selected from a common heat insulator such as Schiropol.

The power supply unit 19 includes a switching mode power supply (SMPS) device 19-a and a power inlet code 19-b. As described above, the power inlet code 19-b may be provided. The alternating current supplied through this is converted into direct current by the SMPS device 19-a and then supplied to the relevant component.

The SMPS device 19-a is configured to include a printed circuit board (PCB), a condenser, a transformer coil, a diode, a resistor, a transistor (TR), and an integrated circuit (IC). However, since this corresponds to the known art, further description thereof will be omitted.

Of course, the SMPS device may be separately installed outside the food container, and a plurality of food containers may be commonly connected thereto.

On the other hand, the edge portion of the frame 11 and the cold plate 15 is coupled to each other via the annular edge plate 24.

The structure of the coupling portion of the frame 11 and the cold plate 15 is a structure as shown in the drawing, that is, a “b” shaped locking portion is formed at the top edge of the frame 11 and is formed at the edge of the cold plate 15. After forming the "U" shaped bent groove, it is not limited to a structure in which these two portions are joined by an annular edge plate 24 of a corresponding shape.

For example, the edges or other portions of these frames 11 and the hot and cold plates 15 may be mutually joined using a general fastener such as a screw.

Furthermore, in the food container of the embodiment of the present invention, the frame 11 and the rim plate 24 of the mutually coupled state are characterized by the addition of a wooden liner 25, which is the whole of the cold / cold food container 1. The purpose is to make the aesthetics more advanced according to specifications.

That is, even when used without the wood liner 25, the revolution as a cold and hot food container can be sufficiently performed.

Of course, in this case, the control device 20 is not mounted on the wood liner 25 as shown, but takes a structure fixed at an appropriate position on the frame 11.

Referring to FIG. 2, which is an exploded perspective view illustrating a cold / cold food container according to an embodiment of the present invention, the assembly process of the cold / cold food container is described as follows.

The process of assembling the cold / cold food container 1 of the present invention includes a cold plate subassembly process, a frame sub assembly process, a wood liner sub assembly process, a frame and cold plate bonding process, a wood liner overlay process, and a plate mounting process. It can be divided into

First, the cold subplate 15 and the cold sink 14 with the temperature sensor 21 attached to each other by using a bolt or screw s of suitable size are connected to each other to form a first sub-assembly. In the meantime, a second sub-assembly is formed by coupling related components such as a heat sink 12 and a power supply unit 19 to the inside of the frame 11, and a control device unit is mounted on the wood liner 25. 20) to form a third subassembly.

Subsequently, the thermoelectric element 13 is disposed on the top surface of the heat sink 12 on the second subassembly, the heat insulating material 17 is disposed on the frame 11, and the first subassembly is placed on the second assembly. Next, the annular edge plate 24 is inserted into the "U" shaped bent groove on the cold plate 15 and the "b" shaped hanger part on the frame 11 to couple them together.

Then, the third sub-assembly, that is, the wood liner 25 on which the control unit 20 is mounted is overlaid on the first and second sub-assemblies in the mutually coupled state, and the temperature sensor 21 and the blower ( 18) and the electrical wiring between the relevant components such as the power supply 19.

When the above assembly process is completed, by mounting the plate 16 on the cold plate 15, the cold and hot food container 1 of the present invention is completed.

Referring back to Figure 1, look at the operation of the cold and hot food container of the present invention embodiment as follows.

First, when a direct current is applied to the thermoelectric element 13 through the power supply unit 19 and the control unit 20, the sub-zero surface (top) of the thermoelectric element 13 due to the Peltier effect as described above The low temperature part of a lower part and a high temperature part of a considerably high temperature are formed in the lower surface.

At this time, it is a matter of course that the direction of movement of electrons varies depending on which electrode is applied to both surfaces of the thermoelectric element 13.

That is, when a negative (-) pole is applied to the upper surface of the thermoelectric element 13 and a positive (+) pole is applied to the lower surface, the electrons move toward the positive (+) pole, that is, the lower surface of the thermoelectric element 13. As a result, heat transfer from the upper surface of the thermoelectric element 13 to the lower surface thereof occurs along the flow of electrons.

As a result, as heat continues to escape from the cold sink 14 and the dish 16 placed thereon in contact with the upper surface of the thermoelectric element 13, they are kept at a low temperature.

Heat transferred to the lower surface of the thermoelectric element 13 is introduced into the heat sink 12 and discharged to the outside as the blower 18 operates.

The above process is a principle applied when the cold and hot food container of the present invention is used in the "cold" mode, and when used in the "warm" mode, the current applied to the upper and lower surfaces of the thermoelectric element 13 Reverse the polarity.

On the other hand, when the cold and hot food container is used in the "warm" mode, the cold sink 14 and the dish ( Moving to 16, there is no need to cool the heat sink 12 in a position independent of heat ingress.

That is, in this case, instead of operating the blower 18, it is necessary to focus on preventing overheating by appropriately controlling the supply of current to the thermoelectric element 13.

The switching of the polarity, that is, the function of changing the positive (+) pole and the negative (−) pole, is performed by the changeover switch 20-a in the control device unit 20.

As such, when the “cold cooling” mode is selected by operating the switch 20-a in the control unit 20, the thermal gradient of the upper surface of the thermoelectric element 13 is low temperature and the lower surface thereof is high temperature. As the dish is formed, the dish on the cold / cold food container is kept at a low temperature, while when the " warm " mode is selected by the changeover switch 20-a, the upper surface of the thermoelectric element 13 is hot, As the thermal gradient in the form of low temperature is formed, the dish is maintained at a high temperature.

In other words, when storing foods that require low-temperature maintenance such as sashimi, the changeover switch 20-a is set to "cold" mode, and contains foods that require a high level of temperature such as hot water. If you want to put it in "warm" mode.

The specific temperature at the low temperature or the high temperature is set in advance by turning the temperature setting lever 20-b in the control unit 20 shown in the perspective view of FIG. 3.

In the above, the cold and hot food container according to the embodiment of the present invention has been described in detail with reference to the accompanying drawings. In the case of the mounting position or the shape of the power supply unit, the control unit, the blower or the temperature sensor, etc., those skilled in the art will appreciate Since changes may be made, the scope of the present invention is not limited to the structure or the shape as shown.

As described above, the cold and hot food container of the present invention, because the structure is equipped with a separate plate that can be separated on the cold plate, it is not necessary to wash the entire container after use, it is only necessary to separate and wash the dish simply, Even if you want to change, there is an advantage to replace only the dish as it is in the state containing the food.

In addition, depending on the specification of the food container, it is possible to make a food container with a greatly improved aesthetics by overlaying a wooden liner on the outer periphery.

That is, according to the present invention, it is possible to obtain a cold and hot food container with improved practicality and aesthetics.

Claims (5)

A hollow cylindrical frame (11) each having a through hole formed on an upper surface central portion and an outer circumferential surface thereof; A heat sink (12) below the top surface of the frame (11), the center portion of which is coupled to a through hole on the top surface thereof; A thermoelectric element (13) as a hot or cold air source, disposed on an upper surface of the heat sink (12); A cold sink (14) as a heat supply or discharge passage disposed on an upper surface of the thermoelectric element (13); It is coupled to the upper surface of the cold sink 14, and also coupled to the frame 11, the cold and hot plate 15 is formed in the center of the bowl portion as a dish seat; A dish 16 mounted on the cold plate 15; A heat insulating material (17) inserted between the frame (11) and the cold plate (15); A blower (18) disposed adjacent said heat sink (12) for discharging heat therefrom; A power supply unit 19 for converting an AC current from the outside into a DC current and supplying the thermoelectric element 13 and other related components; Cold and hot food container (1), characterized in that it comprises a control unit 20 including a switch for switching the cold or warm mode of the cold plate (20-a). 2. The cold and hot food container (1) according to claim 1, wherein the device for converting an alternating current into a direct current in the power supply unit is an SMPS device (19-a). 2. The cold and hot food container (1) according to claim 1, wherein the control unit (20) is connected to a temperature sensor (21) attached on a lower surface of the cold plate (15). 4. The cold temperature according to claim 1, wherein a ventilation guide 22 having a shape surrounding the heat sink 12 is attached to a lower side of the frame 11. Enteric Food Container (1). The hot and cold food container according to any one of claims 1 to 4, wherein a wooden liner (25) is overlaid on the outer circumferential surface of the frame (11).