Detachable seamless refrigerating cabinet door sealing tape and manufacture process thereof

A freezer door, seamless technology, applied in the field of door seals, can solve the problems of reduced sealing performance, low degree of automation, leakage of cold air in the freezer, etc., to achieve excellent sealing performance and thermal insulation performance, excellent anti-collision performance, and avoid cracking damage effect

Inactive Publication Date: 2012-07-04
徐之元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Soft polyvinyl chloride (PVC) material contains a large amount of plasticizer, which is easy to cause molecular migration and contaminate the food in the refrigerator; PVC material has poor elasticity, and its door seal products are easily deformed by external forces during the production process, thereby reducing Sealing performance; PVC material has poor cold resistance, and it is easy to harden and lose elasticity in winter, resulting in reduced sealing performance
[0005] In addition, the existing rubber sleeve welding process mainly relies on manual operation, and the degree of automation is low. The four corners of the door seal are easily cracked due to the collision of the door opening and closing during use, resulting in the leakage of cold air in the freezer.

Method used

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  • Detachable seamless refrigerating cabinet door sealing tape and manufacture process thereof
  • Detachable seamless refrigerating cabinet door sealing tape and manufacture process thereof
  • Detachable seamless refrigerating cabinet door sealing tape and manufacture process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the door seal body 1 is a square frame structure composed of four frame sides that are compatible with the freezer door body, and the junction of the four corners is an R angle designed with a circular arc, which is used to disperse the collision stress and improve the door seal. anti-collision performance. The door seal body 1 is made of liquid polyurethane elastomer material through integral pouring and vulcanization without joints. It has excellent elasticity, high dimensional accuracy and is not easily deformed, and has excellent sealing and heat preservation properties. Such as figure 2 , 3 As shown, each frame side of the door seal body 1 includes a convex wedge 101 , a sealing heat preservation side 102 and a sealing pressing strip 103 . The convex wedge 101 is located at the upper part of the frame edge, and extends along its length to form a square frame, which is used to snap into the edge groove of the freezer door body to real...

Embodiment 2

[0030] Such as Figure 5 As shown, the bottom of the sealing and pressing strip 103 in this example has a circular arc-shaped structure, and the purpose is to increase the tightness between the door sealing strip and the cabinet body. A U-shaped groove can also be established in the middle part of the convex wedge 101 . Other structures and functions of this embodiment are the same as those of Embodiment 1.

[0031]

Embodiment 3

[0033] Such as Figure 6 As shown, in this example, the sealing and heat preservation edge 102 is designed to be bow-shaped, so as to increase the elastic tension of the seal and heat preservation edge 102, which is used to buffer the collision impact force when the freezer is closed. The bottom of the sealing pressing strip 103 is an arc-shaped structure. A U-shaped groove is arranged in the middle of the convex wedge 101 . Other structures and functions of this embodiment are the same as Embodiment 1 and Embodiment 2.

[0034]

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PUM

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Abstract

The invention provides a detachable seamless refrigerating cabinet door sealing tape which is used for sealing seams between a refrigerating cabinet door body and a cabinet body. The detachable seamless refrigerating cabinet door sealing tape comprises a square-frame structural door sealing tape body which is formed by four frame sides adaptable to the refrigerating cabinet door body; the door sealing tape body is formed by carrying out seamless integral casting and vulcanization on a liquid polyurethane elastomer material; and the frame sides comprise convex wedges, sealing heat-insulating sides and sealing laminating strips, wherein the convex wedges are used for being inserted into edge grooves of the refrigerating cabinet door body, the sealing heat-insulating sides are used for sealing the seams between the refrigerating cabinet door body and the cabinet body, and the sealing laminating strips are used for being laminated on the cabinet body by using the own weight of the refrigerating cabinet door body. The invention further discloses a manufacture process of the detachable seamless refrigerating cabinet door sealing tape. The detachable seamless refrigerating cabinet door sealing tape has the advantages of excellent elasticity, tightness, heat-insulating performance, cold resistance and anti-collision performance, no migration of plasticizer molecules, difficulty in cracking and damage of the four corners of the door sealing tape, capability of achieving automatic production, and energy-saving and environment-friendly performance in production process.

Description

technical field [0001] The invention relates to a freezer accessory, in particular to a door seal used for sealing the gap between the door body and the cabinet body of the freezer. Background technique [0002] The freezer door seal is a component arranged between the freezer door and the cabinet to prevent cold air from leaking out. [0003] The existing freezer door seal is made of soft polyvinyl chloride (PVC) material through three processes of extruding a strip rubber sleeve by an extruder, cutting to length and welding the rubber sleeve, and its shape is a square frame. The cross-section of the strip-shaped rubber sleeve is irregular and different frame-shaped, and its upper part is provided with a convex wedge for snapping into the edge groove of the freezer door along the length direction of the rubber sleeve, and several special-shaped cavities are arranged inside it. [0004] Soft polyvinyl chloride (PVC) material contains a large amount of plasticizer, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/02B29C39/02
Inventor 徐之元
Owner 徐之元
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