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Refrigerator door opening reminding device and method

A reminder device and refrigerator door technology, which is applied to household refrigeration devices, cooling fluid circulation devices, lighting and heating equipment, etc., can solve problems such as leakage of cold at the door seal, temperature rise of the box, condensation, etc.

Active Publication Date: 2020-10-27
合肥美菱物联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the user closes the door, the phenomenon of "false closing" of the door often occurs due to the inability to push the door in place, that is, the door is basically in the closed position, but the magnetic strip of the door seal is not attracted to the box body
This phenomenon is not easy to be discovered by the user, which leads to long-term cold leakage at the door seal, and the temperature inside the box rises. It cannot ensure that the temperature in the box meets the set requirements, and it is easy to cause freezing and condensation; "It will also cause the compressor to be on for a long time, resulting in a huge waste of energy
[0004] In addition, after the refrigerator has been used for a long time, when the door frame or the magnetic strip of the door seal is damaged and deformed, the existing device cannot detect

Method used

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  • Refrigerator door opening reminding device and method
  • Refrigerator door opening reminding device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 As shown, the present invention is a refrigerator door opening reminding device, which includes a round tube 101 , a piston 103 , a return spring 105 , a limit structure 104 , a piston position detection device 106 and an alarm prompter 107 .

[0028] The round pipe 101 is a hard through-hole round pipe with a smooth inner wall, which is embedded in the main body of the refrigerator or the door 100 of the refrigerator. One end of it communicates with the air inside the refrigerator, and the other end communicates with the air outside the refrigerator; the piston 103 is installed on The inside of the round tube 101 has good lubrication performance and can move left and right in the round tube 101; one end of the return spring 105 is connected to the piston 103, and the other end is connected to the outside of the round tube 101; the limiting structure 104 is fixed inside the round tube 101, and the limiting structure 104 is a small protrusion or other positi...

Embodiment 2

[0035] Embodiment 1 only provides a qualitative method for detecting whether the refrigerator door is reliably closed or whether the magnetic strip of the door seal is damaged or deformed. If it is necessary to quantitatively calculate the pressure difference between the inside and the outside, the micro switch in Embodiment 1 can be replaced by a distance sensor to measure the moving distance of the piston 103, or add a force sensor to the limit structure to measure the tension on the return spring 105. After obtaining the data of the moving distance of the piston or the tension of the spring, it can be calculated with the calibration value to obtain the internal and external pressure difference, so as to further evaluate the degree of damage and deformation of the magnetic strip of the door seal.

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PUM

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Abstract

The invention discloses a refrigerator door opening reminding device and method, and relates to the technical field of refrigerators. The refrigerator door opening reminding device comprises a circular pipe, a piston, a reset spring, a limiting structure, a piston position detection device and an alarm prompt device; the circular pipe is a hard through-hole circular pipe with a smooth inner wall,and communicates with the external air in a refrigerator; the piston is installed in the circular pipe, and can move left and right in the circular pipe; the piston is connected to one end of the reset spring, and the other end of the reset spring is connected with the outer side of the circular pipe; the limiting structure is fixed into the circular pipe; the piston position detection device is amicroswitch, and a photoelectric detection or distance sensor; and the alarm prompt device is connected with the piston position detection device. According to the refrigerator door opening remindingdevice, the different air pressure difference inside and outside the refrigerator is utilized, the position of the piston is detected through the piston position detection device, thus whether the refrigerator door is closed or not is determined, and if it is detected that the door is not closed, the alarm prompt device sends out sound-light alarm prompt; and the principle is simple, the manufacturing process is convenient, and economy and practicality are achieved.

Description

technical field [0001] The present application relates to the technical field of refrigerators, in particular to a refrigerator door opening reminder device and method. Background technique [0002] A refrigerator is a device that relies on low temperature to preserve food. In order to keep the refrigerator in a low temperature state, the box and the door provided on the box should be closed under normal working conditions. The usual practice is to inlay door seal magnetic strips around the frame of the box door, and rely on the door seal magnetic strips to closely adhere to the opening surface of the box made of metal plates to close the box and the door, thereby preventing the box from Heat exchange inside and outside. [0003] However, when the user closes the door, the phenomenon of "false closing" of the door often occurs due to the improper push of the door, that is, the door is basically in the closed position, but the magnetic strip of the door seal is not attracted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/02F25D29/00
CPCF25D23/02F25D29/00F25D29/008F25D2700/02
Inventor 朱忠浩张凯
Owner 合肥美菱物联科技有限公司