CN216114934U

CN216114934U - Defrosting device for refrigerator

Info

Publication number: CN216114934U
Application number: CN202121593562.3U
Authority: CN
Inventors: 黄俊杰; 罗仁杰; 邹婷; 陈迅雷; 杨青茹; 高凌峰; 胡波
Original assignee: Chengdu Univeristy of Technology
Current assignee: Chengdu Univeristy of Technology
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-03-22
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a device which can directly defrost without opening or closing a refrigerator and taking out articles in the refrigerator. The freezer defrost can be accomplished manually or automatically without the need to power down the freezer and remove items from the freezer. The refrigerator defrosting device is internally provided with a temperature sensor for controlling the temperature in the refrigerator, when reaching a certain temperature, the defrosting operation is finished, the defrosting operation is stopped in time, and an air cooling drying mode is started for quick refrigeration and dehumidification.

Description

Defrosting device for refrigerator

Technical Field

The utility model relates to the field of defrosting, in particular to a defrosting device of a refrigerator.

Background

At present, the small household refrigerator for household and commercial use mostly adopts a direct cooling type, the inside of the refrigerator is refrigerated by an evaporator and a condenser pipe, and the natural convection on the surface of the evaporator is utilized to reduce the temperature in the refrigerator. The switch door in the use lets the moisture in the air get into the incasement to and inside material moisture that runs off of eating can not in time get rid of outside the case, can make the incasement have vapor, the phenomenon of frosting appears in the freezer during operation once more. The freezer frosting can influence the refrigeration effect, increases power consumption, occupies usage space.

The existing partial defrosting technology achieves the defrosting effect through a defrosting shovel or a heating part structure, the method is simple in structure and easy to achieve, and the frost layer is cleaned by powering off and taking out food in a refrigerator. The existing frostless refrigerator adopting air cooling has the advantages of high refrigeration efficiency, high speed, uniform temperature, no need of manual defrosting and hidden refrigeration pipeline. But the direct-acting defrosting results in low humidity, easy air drying and dehydration of food, poor food preservation effect, high power consumption, smaller volume and high price under the same volume.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design a device which can directly defrost without opening or closing a refrigerator and taking out articles in the refrigerator.

In order to achieve the purpose, the technology of the utility model adopts the following scheme:

a direct defrosting device without power cut-off and taking out articles of a refrigerator comprises a hot air box, a hot air pipeline, a heat pipe, a motor, fan blades, a heating wire, an air outlet and a drying pipe, wherein the defrosting function is completed by installing the direct defrosting device at one corner of a refrigerator body of the refrigerator. The hot air pipes are arranged like a coil pipe of a refrigerator and evenly surround the cabinet body, and small holes are formed in the hot air pipes, so that hot air directly acts on the frost layer. The hot air box is of a column type and is close to the top corner of the freezer, the bottom of the hot air box is provided with a motor and fan blades, the blades are tightly connected with a drying pipe, cold air in the freezer body enters the drying pipe under the blowing of the fan, and silica gel is filled in the drying pipe for drying. The outside of the drying tube is wrapped with a heating wire to heat cold air in the drying tube. The drying tube is closely connected with an air outlet, the air outlet is externally connected with a hot air pipeline, hot air enters the hot air pipeline through the air outlet and flows to the periphery of the cabinet body in the hot air pipeline. After the frost is melted, the frost flows down along the inner wall of the cabinet body and flows into the drainage port along the drainage groove at the bottom of the cabinet body, so that secondary frost formation is prevented. Meanwhile, a temperature sensor is further installed inside the refrigerator defrosting device and used for controlling the temperature in the refrigerator, and when a certain temperature is reached, defrosting should be stopped in time.

Compared with the prior art, the utility model has the following characteristics:

1. solves the basic problem of defrosting the refrigerator

2. The defrosting process does not need to be powered off and articles in the refrigerator are taken out;

3. the refrigerator can be installed on most of the existing refrigerators, and the universality is strong;

4. the mechanism is simple, and the manufacturing cost is low;

5. the intellectualization of modern social products is fully responded;

6. the device occupies small space and cannot cause great influence on stored articles;

drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts

Fig. 1 is an overall schematic view of a defrosting apparatus for a refrigerator disclosed in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a hot air box disclosed in embodiment 1 of the present invention;

FIG. 3 is a schematic view of a heat pipe structure disclosed in embodiment 1 of the present invention;

wherein, the names of each part are as follows:

1-cabinet body, 2-cabinet cover, 3-hot air cabinet body, 4-hot air pipeline, 5-drainage groove, 6-air outlet, 7-drying pipe, 8-hot air cabinet cover, 9-heating wire, 10-fan blade, 11-motor and 12-water outlet.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The technical scheme in the embodiment of the utility model is clearly and completely described through the attached drawings in the embodiment of the utility model. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model.

Referring to fig. 1, a direct defrosting apparatus without power cut and taking out of the refrigerator items includes a drying part, a heating defrosting part, and a draining part.

The motor (11), the fan blades (10), the heating wires (9), the air outlet (6) and the drying pipe (7) are assembled and installed in the hot air box body (3), the hot air pipeline (4) is arranged like a coil pipe of a refrigerator and evenly surrounds the cabinet body (1), small holes are formed in the hot air pipeline, and hot air acts on a frost layer. The hot air box body (3) is of a column type and is close to the top angle of the freezer, the bottom of the hot air box body (3) is provided with a motor (11) and fan blades (10), the fan blades (10) are tightly connected with a drying pipe (7), cold air enters the drying pipe (7) under the blowing of the fan blades (10), and silica gel is filled in the drying pipe (7) for drying. The outside of the drying pipe (7) is wrapped with a heating wire (9) to heat cold air in the drying pipe (7). The drying pipe (7) is closely connected with the air outlet (6), the air outlet (6) is externally connected with the hot air pipeline (4), hot air enters the hot air pipeline (4) through the air outlet (6) and flows to the periphery of the cabinet body (1) in the hot air pipeline (4). After being melted, the frost flows down along the inner wall of the cabinet body (1) and flows into the drainage port (12) along the drainage groove (5) at the bottom to be discharged, so that secondary frosting is prevented. Meanwhile, a temperature sensor is further installed inside the refrigerator defrosting device and used for controlling the temperature in the refrigerator, and when a certain temperature is reached, defrosting should be stopped in time.

The utility model adopts the following steps:

1. opening and closing is performed automatically and manually.

2. The temperature can be automatically detected, and defrosting work or defrosting stop can be carried out.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a freezer defroster which characterized in that: the hot air drying cabinet comprises a hot air box body (3), a hot air pipeline (4) uniformly surrounding a cabinet body (1), a hot air box cover (8) arranged on the hot air box body (3), an air outlet (6) inside the hot air box body (3), a drying pipe (7), a heating wire (9), fan blades (10), a motor (11) and a drainage groove (5), wherein the drainage groove (5) is arranged at the bottom of the cabinet body (1) and is connected with a drainage outlet (12).

2. The defrosting device of a refrigerator as claimed in claim 1, wherein the hot air box body (3) is connected with the hot air pipeline (4) through the air outlet (6), the hot air pipeline (4) is arranged like a coil pipe of the refrigerator and uniformly surrounds the refrigerator body (1), small holes are arranged on the hot air pipeline, and hot air acts on the frost layer.

3. The defrosting device of a refrigerator according to claim 1, characterized in that the drying tube (7) is installed in the hot air box body (3), the air outlet (6) is installed in front of the drying tube (7), the heating wire (9) is wound outside the drying tube (7), and the motor (11) connected with the fan blade (10) is installed behind the drying tube (7).