Refrigerator chamber and its manufacture

Abstract

The present invention relates to the field of refrigerator chamber producing method and technology via injection machine. The refrigerator chamber includes chamber and door and features that its integral heat insulating layer is one assembled plastic structure of injection molded plastic parts. The casing is divided into two or three plastic parts. It has the advantages of simple structure, easy assembly and low cost.

Description

technical field [0001] The invention relates to the technical field of a box body of a refrigerating-freezing refrigerator and a freezer and a production method thereof. Background technique [0002] With the continuous improvement of people's living standards, household appliances are constantly coming into people's family life, especially refrigerators and freezers are deeply loved by people because of their use effects such as heat preservation, preservation, refrigeration, and refrigeration. The shell of the traditional refrigerator freezer is made of sheet metal. After the surface of the sheet metal is phosphating, it is sprayed on the surface. Therefore, sheet metal processing equipment is required, with many production processes and spare parts, complex structure, and troublesome installation and operation. , the investment in special equipment is very large, and the product update is slow. In addition, from the perspective of the work of the refrigerator freezer, the...

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Problems solved by technology

2's Chinese patent "Case and Its Components and Manufacturing Method", which discloses a plastic splicing structure and manufacturing method of a refrigerator cabinet. an elongated seam is divided into three or more wall sections, these wall sections are arranged side by side sequentially, at these seams said double walls touch, said double wall insulating plastic part is folded at said seams, Thereby said wall sections sequentially form three or more side walls of a box, these side walls are connected at said elongated joints, a refrigerating space is defined between said side walls, a space with The top edge of the wall part is connected to a top cover that makes the wall part maintain the folded shape, and the top cover closes the top of the refrigerated space, and a top cover that is connected to the bottom edge of the wall part so that the wall part a base maintaining said folded shape, said base directly or indirectly supporting the mechanical components of said refrigeration system, and a bottom piece integrally or separately manufactured with said base, for closing the bottom end of said refrigeration chamber, Of course, it has advantages such as no need for sheet metal technology, transportation to the site for assembly, good temperature insulation performance, and convenient interlocking assembly, etc., but there are still some places that can be further improved, such as the structural design is not simple enough, Because it adopts an assembled structure, the base and the top plate are manufactured separately, and two large plastic plates are heated and formed in the forming box at the same time, forming a box that can be folded to form three sides of the box, and filled with thermal insulation. Plastic, and then assembled with the base and top plate through the splicing assembly structure to form the box of the refrigerator, so there are many parts, including the base, top plate and box part, which is not conducive to its production; especially the box part is a double-layer board. It is made by heating and processing, and at the same time, air is needed to separate the plates, so the forming box mold is relatively large, and the investment in equipment is relatively large, and an assembly structure that is spliced ​​with the top plate and the base must be formed during production, so processing It is more complicated, and it is easy to cause defective products; the top plate, the base and the box body need to be filled with heat-insulating plastics respectively, and the base and the top plate must be spliced ​​with the box body, so the process steps are not fast and simple enough, because the box body is made of thermal insulation plastic. It is processed, so it is difficult to change the industrial shape

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