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Refrigerator

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Refrigerator


A refrigerator door includes a front surface panel and a rear surface panel configured such that a foam space is provided between the panels, first and second frames configured to form each side surface of the door and to which the two panels are supportedly attached, an upper cap and a lower cap configured to form upper and lower surfaces of the door, respectively, and thermal insulating material which is provided in the foam space to couple the front surface panel, the rear surface panel, the first frame, the second frame, the upper cap, and the lower cap to one another, wherein each of the first frame and the second frame is formed by sequentially introducing a steel plate coil having a predetermined thickness and width into a predetermined number of roll forming members.
Related Terms: Roll Forming

Browse recent Samsung Electronics Co., Ltd patents - Suwon, KR
Inventors: Gi Joong JEONG, Jae Hoon Lim, Sun Keun Lee
USPTO Applicaton #: #20120326587 - Class: 312405 (USPTO) - 12/27/12 - Class 312 


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The Patent Description & Claims data below is from USPTO Patent Application 20120326587, Refrigerator.

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CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Korean Patent Application No. 2011-0060102, filed on Jun. 21, 2011 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.

BACKGROUND

1. Field

Embodiments relate to a door of a refrigerator.

2. Description of the Related Art

A refrigerator is an apparatus which is provided with a storage compartment, and configured to keep food fresh by providing cool air through a cooling cycle. The storage compartment has a front surface open. The front open surface is open/closed by a door that is rotatably installed on a body.

A front surface panel forming the external appearance of a door is formed using tempered glass to improve cognitive quality. Frames forming the framework of the door are configured to support the front surface panel. Each of the frames includes metal to stand the expansion pressure of a forming agent inside the door.

In general, frames are manufactured by extruding aluminum in a desired form, but the aluminum used in the extrusion is more expensive than other metals. In addition, a post treatment, such as a coating process, needs to be performed after the extrusion.

SUMMARY

In an aspect of one or more embodiments, there is provided a structure of a door frame for a refrigerator, capable of reducing the manufacturing cost while providing a simplified manufacturing process, and a method of manufacturing the same.

In an aspect of one or more embodiments, there is provided a door assembly structure capable of ensuring a simplified assembly and a method of manufacturing the same.

In accordance with a refrigerator includes a body and a door. The body has a storage compartment. The door is configured to open and close a front open surface of the storage compartment. The door includes a front surface panel, a rear surface panel, a first frame, a second frame, an upper cap, a lower cap and thermal insulating material. The front surface panel is configured to form a front surface of the door and includes tempered glass. The rear surface panel is configured to form a rear surface of the door such that a foam space is provided between the rear surface panel and the front surface panel. The first and the second frames are configured to form each side surface of the door and to which the front surface panel and the rear surface panel are supportedly attached. The upper cap and the lower cap configured to form an upper surface and a lower surface of the door, respectively. The thermal insulating material is provided in the foam space to couple the front surface panel, the rear surface panel, the first frame, the second frame, the upper cap, and the lower cap to one another. Each of the first frame and the second frame is formed by sequentially introducing a steel plate coil having a predetermined thickness and width into a predetermined number of roll forming members.

The upper cap and the lower cap are manufactured through an injection molding.

The second frame has a grip groove, which recesses toward the foam space, to enable opening/closing of the door.

The steel plate coil includes a Pre-Coated Metal (PCM).

One side of the front surface panel is supportedly attached to the first frame, and an opposite side of the front surface panel is supportedly attached to the second frame.

The front surface panel has a width less than a width of the rear surface panel.

Each of the upper cap and the lower cap has a first frame insertion groove to which the first frame is inserted, and a second frame insertion groove to which the second frame is inserted.

The front surface panel, the rear surface panel, the upper cap, the lower cap, the first frame, and the second frame are coupled to one another primarily through adhesion member, and secondarily through an adhesive force of the thermal insulating material.

The refrigerator further includes a first middle member and a second middle member. The first middle member is interposed between the front surface panel and the first frame to align a position of the front surface panel. The second middle member is interposed between the front surface panel and the second frame to align a position of the front surface panel.

In an aspect of one or more embodiments, there is provided a refrigerator includes a body and a door. The body has a storage compartment. The door is configured to open and close a front open surface of the storage compartment. The door includes a front surface panel, a rear surface panel, a pair of caps and a pair of frames. The front surface panel is configured to form a front surface of the door and includes tempered glass. The rear surface panel is configured to form a rear surface of the door such that a foam space is provided between the rear surface panel and the front surface panel. The pair of caps is configured to upper and lower sides of the foam space and manufactured through an injection molding. The pair of frames each including a rear surface coupling part having the rear surface panel supportedly attached thereto, a front surface coupling part having the front surface panel supportedly attached thereto, and a connecting part configured to connect the rear surface coupling part to the front surface coupling part. Each of the pair of frames is formed by sequentially introducing a steel plate coil having a predetermined thickness and width into a predetermined number of roll forming members.

One of the pair of frames has a grip grove, which recesses toward the foam space, to enable opening/closing of the door.

In an aspect of one or more embodiments, there is provided a method of manufacturing a door for a refrigerator is as follows. A front surface panel including tempered glass is provided. A rear surface panel is provided. The rear surface panel forms a foam space between the front surface panel and the rear surface panel. A first frame and a second frame are provided by introducing a steel plate coil having a predetermined thickness and width into a predetermined number of roll forming members. Each of the first and the second frames includes a rear surface coupling part having the rear surface panel supportedly attached thereto, a front surface coupling part having the front surface panel supportedly attached thereto, and a connecting part configured to connect the rear surface coupling part to the front surface coupling part. A upper cap and a lower cap are formed through injection molding. The upper cap and the lower cap are insertedly coupled to the first frame and the second frame, and the front surface panel, the rear surface panel, the upper cap, the lower cap, the first frame and the second frame are temporarily fixed to one another through adhesion member. Thermal heating material is formed in the foam space such that the front surface panel, the rear surface panel, the upper cap, the lower cap, the first frame, and the second frame are coupled to one another through an adhesive force of the thermal heating material.

In the forming the first frame and the second frame, one of the first frame, and the second frame has a grip groove, which recesses toward the foam space, to enable opening/closing of the door.

In an aspect of one or more embodiments, the manufacturing cost is reduced by manufacturing a frame using a PCM steel plate instead of aluminum which is more expensive than PCB steel.

In addition, one or more embodiments may remove a post treatment that needs to be performed on a conventional aluminum frame after extrusion.

In addition, the process of manufacturing a frame is simplified, and the assembly structure of a door is simplified, thereby enhancing the reliability on the product quality.



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stats Patent Info
Application #
US 20120326587 A1
Publish Date
12/27/2012
Document #
13495591
File Date
06/13/2012
USPTO Class
312405
Other USPTO Classes
49506
International Class
/
Drawings
7


Roll Forming


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