CN2317449Y

CN2317449Y - Electronic refrigerator

Info

Publication number: CN2317449Y
Application number: CN 97230508
Authority: CN
Inventors: 周乐喜
Original assignee: 周乐喜
Current assignee: Meizhou Dongchen Co. Ltd.
Priority date: 1997-12-10
Filing date: 1997-12-10
Publication date: 1999-05-05
Anticipated expiration: 2007-12-10

Abstract

The utility model relates to an electronic refrigerator, comprising a semiconductor refrigerating piece and a cold accumulating block, wherein, the semiconductor refrigerating piece is connected with a switch and a temperature control circuit through connecting wires. The utility model is provided with a special radiator for overcoming the defects of the existing similar product that the refrigerating efficiency is low, the manufacturing process is complex, and the cost is high; the special radiator is formed by that a plurality of radiating fins and partition pieces are superposed, the end face of the special radiator is tightly contacted with the working face of the semiconductor refrigerating piece, and the other working face of the semiconductor refrigerating piece is tightly contacted with the cold accumulating block. The utility model is also provided with a miniature fan which is connected with the special radiator through a fixed frame. The utility model has the characteristics of large radiating area, high efficiency, fast heating up, large refrigerating capacity, compact structure, and low cost.

Description

Electronic refrigerator

The utility model relates to a kind of electronic refrigerator of using Peltier effect.

Electronic cooling that is semiconductor refrigerating are with advantages such as its noiseless, friction, life-span length, reliable operations, especially it does not need this significant advantage of chlorofluoromethane refrigerant of harmful to human, contaminated environment, be subjected to people's attention more and more widely, but for a long time because the refrigerating capacity of electronic cooling is little, efficient is not high yet and involve great expense, and its application is confined in the small-sized scopes such as medical treatment, instrument and meter.Notification number is that the utility model patent of CN2225644Y has provided a kind of " high efficiency electronic refrigerator ", its structure is: be provided with heat transfer device at two groups of semiconductor refrigerating interelements of A, B, heat transfer device is located in the heat transfer device box, the box inwall is provided with the heat-insulation and heat-preservation liner, two groups of semiconductor refrigerating elements of A, B are located at respectively in the hole of two side in the heat transfer device box, heat transfer device box both sides are respectively equipped with heat-conducting block, heat-conducting block is close to fixing by protruding small end on it and cooling module, two refrigeration elements connect temperature control circuit respectively.This utility model is worked simultaneously owing to having adopted two groups of semiconductor refrigerating elements of A, B to be together in series, the temperature of refrigeration is decreased, but its outer radiating end is common radiating surface, adopt common air-cooled heat radiation, and adopt the secondary conduction, whole efficiency is still lower, establishes snakelike heat-exchange tube in the heat transfer device, manufacturing process complexity, cost are also higher.

The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, and a kind of good heat dissipation, refrigerating efficiency height and simple in structure, good manufacturability, electronic refrigerator with low cost are provided.

The purpose of this utility model is achieved through the following technical solutions.This electronic refrigerator includes semiconductor chilling plate and Chu Leng piece, semiconductor chilling plate is by wiring and temperature control, on-off circuit joins, storing up cold is a metal conductive block, be arranged in the heat-insulation and heat-preservation material, its working face one side is close to the semiconductor chilling plate working face, scribble heat-conducting silicone grease on the contact-making surface, another side pastes with the conductive plates of refrigerator metallic plate or other target mutually as low-temperature receiver or thermal source, electronic refrigerator of the present utility model comprises that also one is heat radiator dedicated, the heat radiator dedicated stack by multi-disc fin and partition constitutes, each sheet bolting, fin closely pastes mutually with the end plane of partition composition and the other end working face of semiconductor chilling plate, scribbles heat-conducting silicone grease on the contact-making surface.

For further realizing the purpose of this utility model, this electronic refrigerator also is provided with a heat transmission mini-fan, and mini-fan is arranged on the outside of radiator and links by a fixed frame and radiator.

Electronic refrigerator of the present utility model, because of adopted by multi-disc fin and partition form heat radiator dedicated, increased area of dissipation widely, the radiating efficiency height, thereby the refrigerating efficiency height, refrigerating capacity greatly improves, and has compact conformation, characteristics that heating and cooling are fast.

The Figure of description drawing is described as follows:

Fig. 1 is the utility model electronic refrigerator overall structure schematic diagram;

Fig. 2, Fig. 3 are respectively heat radiator dedicated fin of electronic refrigerator and partition flat shape figure.

Provide specific embodiment of the present utility model below in conjunction with Figure of description.As shown in Figure 1, this electronic refrigerator is made up of storage cold (3), semiconductor chilling plate (5), heat radiator dedicated and mini-fan (9), and storing up cold (3) is to use industrial aluminum L ₄A kind of conductive block that material is made, its effect is with cold or hot the conducting on semiconductor chilling plate (5) working face, this storage cold (3) is arranged in the insulation material layer (4), two working face one side is close to semiconductor chilling plate (5) working face, scribble heat-conducting silicone grease on its contact-making surface, the another side that stores up cold (3) joins as the conductive plates of low-temperature receiver or thermal source and refrigerator metallic plate (2) or other target, (1) is hold-down screw among the figure, semiconductor chilling plate (5) can adopt existing TEC1-12708 type on the market, its structure is to constituting by 127 pairs of galvanic couples, two ceramal sheets are close to as working face in both sides, and two working faces of semiconductor chilling plate (5) are by wiring and switch, temperature control circuit joins.As Fig. 1, Fig. 2 and shown in Figure 3, heat radiator dedicated by multi-disc fin (8) and partition (7) stack formation, fin (8) and partition (7) are stamped to form with mould with industrial L4 type aluminium, its shape is respectively as Fig. 2 and shown in Figure 3, scribbling heat-conducting silicone grease between each sheet also fixes with bolt (11), closely paste mutually for making between each sheet, can offer rivet hole (12) at the fin (8) and the middle part of heat shield (7) respectively, each sheet is riveted tightly with aluminum rivet.Fin (8) closely pastes mutually with the end plane of partition (7) formation and the working face of semiconductor chilling plate (5), is coated with the very thin heat-conducting silicone grease of last layer on two contact-making surfaces, and to guarantee good conduction, (6) are a compressing tablet among Fig. 1.Mini-fan (9) links by fixed frame (10) and radiator.

Claims

1, a kind of electronic refrigerator, include semiconductor chilling plate and Chu Leng piece, semiconductor chilling plate is by wiring and switch, temperature control circuit joins, storing up cold is a metal conductive block, be arranged in the heat-insulation and heat-preservation material, its working face one side is close to the semiconductor chilling plate working face, another side pastes with the conductive plates of refrigerator metallic plate or other target mutually as low-temperature receiver or thermal source, store up on the cold contact-making surface with semiconductor chilling plate and scribble one deck heat-conducting silicone grease, of the present utility model being characterised in that: this electronic refrigerator comprises that also one is heat radiator dedicated, the heat radiator dedicated stack by multi-disc fin and partition constitutes, and wear tightly with bolt and to fix, fin closely pastes mutually with the end plane of partition composition and another working face of semiconductor chilling plate, scribbles one deck heat-conducting silicone grease on its contact-making surface.

2, electronic refrigerator according to claim 1 is characterized in that: this electronic refrigerator also includes a heat transmission mini-fan, and mini-fan is installed in the outside of radiator and links by a fixed frame and radiator.

3, electronic refrigerator according to claim 1 and 2 is characterized in that: on described heat radiator dedicated fin and the partition contact-making surface, scribble one deck heat-conducting silicone grease.

4, electronic refrigerator according to claim 1 and 2 is characterized in that: be respectively equipped with rivet hole on described fin and the partition, each sheet is riveted tightly by rivet.

5, electronic refrigerator according to claim 3 is characterized in that: be respectively equipped with rivet hole on described fin and the partition, each sheet is riveted tightly by rivet.