CN202269840U

CN202269840U - Rapid heat radiation apparatus of cold-hot switchable meal furnace

Info

Publication number: CN202269840U
Application number: CN2011201967432U
Authority: CN
Inventors: 吴平; 陈聪祥; 柴剑锋
Original assignee: Nanyang Hotel Articles Manufacturing Co Ltd Ningbo
Current assignee: Nanyang Hotel Articles Manufacturing Co Ltd Ningbo
Priority date: 2011-06-13
Filing date: 2011-06-13
Publication date: 2012-06-13
Anticipated expiration: 2021-06-13

Abstract

The utility model provides the rapid heat radiation apparatus of a cold-hot switchable meal furnace, which comprises a furnace frame, a furnace body arranged on the furnace frame, a food tray arranged in the furnace body, a cold-hot conduction plate arranged on the bottom surface of the food tray, a semiconductor refrigerating and heating element arranged on the other surface of the cold-hot conduction plate, a voltage transformation rectification filter circuit and a change-over switch assembly. The voltage transformation rectification filter circuit and the change-over switch assembly are arranged inside the furnace frame. The utility model is characterized by also comprising a rapid heat radiation apparatus consisting of a heat conduction clamping plate, a heat pipe assembly and a radiator. One end of the heat pipe assembly is tightly clamped to the bottom surface of the semiconductor refrigerating and heating element through the heat conduction clamping plate, while the other end of the heat pipe assembly is tightly connected with the radiating fin of the radiator. According to the utility model, a heat-pipe radiator is adopted instead of a cooling circuit consisting of a circulating pump, a circulating water pipe and a radiator, so that the heat transfer speed is greatly improved. Meanwhile, the semiconductor refrigerating or heating effect is improved. Due to the adoption of the rapid heat radiation apparatus, the problem that a motor is excessive in noise is solved and the inconvenience of replacing circulating water and the like is also avoided.

Description

The rapid heat radiation device of cold and hot changeable buffet meal stove

Technical field

The utility model relates to a kind of heat abstractor, the particularly cold and hot rapid heat radiation device that can switch the buffet meal stove each other.

Background technology

The buffet furnace that is used for hotel and dining room at present is mainly as the cool-bag that holds dish or food.Progress along with society; The raising of living standards of the people, people are increasingly high to demand on the performance of products, and CN201542327U proposes the cold and hot changeable buffet meal stove that a kind of buffet meal stove can be deposited cold food or cold drink food; Its radiating effect circulates through water and realizes; Noise is big when energy consumption height, machine works, and owing to use the recirculated water medium must change recirculated water in machine works after a period of time, causes the many inconveniences of use.

Summary of the invention

The utility model designs a kind of cold and hot changeable buffet meal stove with rapid heat radiation device to the problem of above-mentioned existence, reaches the purpose that improves result of use and energy savings.

The rapid heat radiation device of cold and hot changeable buffet meal stove; It comprises grate; Be located at the body of heater on the grate, be located at the food tray in the body of heater, the cold and hot conductive plate of being located at the food tray bottom surface heats device with the semiconductor refrigerating of being located at cold and hot conductive plate another side; And be located at transformation current rectifying and wave filtering circuit and the switch assembly in the grate; It is characterized in that also being provided with in the grate rapid heat radiation device of being made up of heat conduction clamping plate, heat pipe assembly and radiator, an end of said heat pipe assembly is clamped in the bottom surface of partly leading the cooling and warming device by the heat conduction clamping plate, and the other end of heat pipe assembly closely is connected with the fin of said radiator.

The utility model adopts heat-pipe radiator to replace the cooling circuit of being made up of circulating pump and circulating water pipe and radiator; Greatly improved heat transfer speed, the effect that improves semiconductor refrigerating or heat has been broken away from the single radiating mode that simple dependence high-speed electric expreess locomotive obtains better radiating effect; Make radiator can adopt Low speed electric motor; Even can not obtain the energy saving effect with motor, it is excessive and change inconvenience problem such as recirculated water also to have solved simultaneously the machine operation noise.

Description of drawings

Fig. 1 is the rapid heat radiation device structure chart in the cold and hot changeable meal stove.

Fig. 2 is A-A profile of Fig. 1.

Fig. 3 is the partial enlarged drawing of Fig. 2.

The specific embodiment

Further specify the structure and the course of work of the utility model below in conjunction with accompanying drawing.

Referring to shown in Figure 1, Fig. 1 representes that the buffet meal stove removes the visible structure of the electric fan 15 of right-hand part.

Grate 1 is supported by four stove pin, and body of heater 2 is supported by grate 1, and the hollow in the middle of the body of heater 2 partly is food tray 6; The food tray outer surface of going to the bottom is close to some heat pipe assemblies; Heat pipe assembly 3 is combined by some heat pipes that are parallel to each other, and present embodiment is 3 one group and is arranged in parallel that an end of heat pipe assembly 3 clamps and fixes in the plane by heat conduction clamping plate 7; Curve U-shaped in the middle of the heat pipe that is parallel to each other, the other end is fixed under the body of heater baseplane by radiator 4.Also establish switch assembly 9 on the lateral surface of grate 1, transformation filter rectifier 8 is located at grate 1 medial surface and is connected with change-over switch.

Referring to Fig. 2 and shown in Figure 3; In the middle of the body of heater 2 is food tray 6; On said heat conduction clamping plate 7, heat device 5 for semiconductor refrigerating; Said semiconductor refrigerating heats the another side of device 5 and is close to cold and hot conductive plate 10, and the upper surface of cold and hot conductive plate 10 contacts with the intimate of going to the bottom of food tray 6, the lower surface spaced set several semiconductor cooling and warming device 5 of cold and hot conductive plate 10.Semiconductor refrigerating heats device and quantity is set determines that by the floor space of food tray 6 and refrigeration or the watt level that heats present embodiment is 4 block semiconductor cooling and warming devices, and cold and hot conductive plate 10 can be selected the high aluminium sheet of thermal conductivity factor, steel plate or corrosion resistant plate for use.The lower surface of every block semiconductor cooling and warming device 5 closely contacts with the upper surface of described heat conduction clamping plate 7.

The heat pipe that said heat pipe assembly 3 is selected for use is the commercially available core heat pipe that has; Operating temperature is between-10～100 ℃; It is by shell; The wick that is located in the shell is formed with the lower boiling working solution and the end cap that are poured in the wick, is bent into arc transition between every heat pipe of heat pipe assembly 3, hinders the phase change of working solution in the barrier tube chamber to avoid wick structural change capillaceous.

As shown in Figure 3; Heat conduction clamping plate 7 are clamped by the end of clamping plate with heat pipe assembly 3 that conduct heat up and down; For being contacted with heat pipe 3 outer walls, heat conduction clamping plate 7 closely do not influence the inside heat pipe structure again; Between two clamping plates, be provided with the arc groove with the corresponding size of heat pipe outer wall size, in the arc groove, heat conduction clamping plate two ends were tightened up by screw 12 up and down about the heat conduction clamping plate will every heat pipe be clamped in up and down; One crowning of following heat conduction clamping plate is compressed by flexure strip 14; The two ends of flexure strip are tightened up by screw 13 and described cold and hot conductive plate 10, and cold and hot conductive plate 10 outsourcing heat-insulation layers 11, semiconductor refrigerating heat and form closely contact between device 5 and the heat conduction clamping plate 7, to accelerate heat radiation or endothermic process.Also can be at the heat absorbing end or the release end of heat peripheral hardware exhaust blower 15 of heat pipe assembly 3, to strengthen heat release or heat absorption process.The other end of heat pipe assembly 3 closely contacts with the fin of radiator 4, be to keep better heat radiating effect, also establishes the arc groove with the corresponding size of heat pipe 3 outer walls size up and down between the fin, closely contacts with heat pipe 3 outer walls guaranteeing.

Semiconductor refrigerating heats the refrigeration of device 5 or heats characteristic and can be changed by the dc source change in polarity; When applying dc source by 8 pairs of semiconductors of transformation filter rectifier; Produce the refrigeration effect of heat absorption in semi-conductive one side; Then produce exothermic effect at semi-conductive another side; Change the positive-negative polarity of input currents through switch assembly 9, the one side that semiconductor refrigerating heats device becomes the effect that heats of heat release by the refrigeration effect of heat absorption, and another side then heats the refrigeration effect that effect becomes heat absorption by heat release.And the temperature difference at heat pipe two ends is very big; The one of which end is the evaporation heat absorbing end; Therefore the other end is the condensation release end of heat, if the evaporation heat absorbing end of heat pipe is closely contacted with the end face that heats of semiconductor cooling device, the other end that heat pipe just can also be sent to the thermal source absorption that semiconductor heats end face rapidly heat pipe carries out the condensation heat release; The liquid that condenses can return front end automatically and proceed the evaporation heat absorption, and so circulation is more than.If the other end at heat pipe closely connects radiator 4, just further accelerated the condensation heat release speed of heat pipe condensation end, further accelerated gas, the liquid pace of change of heat-absorbing medium in the heat pipe, play the effect of quick heat radiating.

Claims

1. the rapid heat radiation device of cold and hot changeable buffet meal stove; It comprises grate (1); Be located at the body of heater (2) on the grate (1); Be located at the food tray (6) in the body of heater (2); The semiconductor refrigerating of being located at the cold and hot conductive plate (10) of food tray (6) bottom surface and being located at cold and hot conductive plate (10) another side heats device (5), and is located at transformation current rectifying and wave filtering circuit (8) and switch assembly (9) in the grate (1), it is characterized in that also being provided with in the grate (1) rapid heat radiation device of being made up of heat conduction clamping plate (7), heat pipe assembly (3) and radiator (4); One end of said heat pipe assembly (3) is clamped in the bottom surface of partly leading cooling and warming device (5) by heat conduction clamping plate (7), and the other end of heat pipe assembly (3) closely is connected with the fin of said radiator (4).

2. the rapid heat radiation device of cold and hot changeable buffet meal stove according to claim 1 is characterized in that said heat pipe assembly (3) is by curving U-shaped in the middle of some heat pipes that are parallel to each other.

3. the rapid heat radiation device of cold and hot changeable buffet meal stove according to claim 2 is characterized in that being bent into arc transition between every heat pipe of said heat pipe assembly (3).

4. the rapid heat radiation device of cold and hot changeable buffet meal stove according to claim 1 is characterized in that said heat conduction clamping plate (7) are clamped an end of heat pipe assembly by heat conduction clamping plate up and down.

5. the rapid heat radiation device of cold and hot changeable buffet meal stove according to claim 4 is characterized in that said heat conduction clamping plate (7) are provided with and the corresponding arc groove of said heat pipe outer wall size between two heat conduction clamping plate up and down.