CN-116625052-B - Refrigerator frosting detection method

CN116625052BCN 116625052 BCN116625052 BCN 116625052BCN-116625052-B

Abstract

The invention provides a refrigerator frosting detection method, which relates to the field of frosting detection and comprises the following detection steps of placing a tightened rod in a set interval between fins, knocking the rod between adjacent fins to enable the rod to vibrate, further generating sound, recording the frequency of the sound through a recorder, dripping water to the rod between the adjacent fins to enable the water to be condensed in the interval and be tightly combined to the rod, knocking the rod again to enable the rod to vibrate, further generating sound, recording the frequency of the sound again through the recorder, comparing the sound frequency detected by the recorder front and back, further combining the detected sound frequency in the process of knocking the rod, judging whether frosting exists between the fins, and determining the frosting position.

Inventors

Xiang Lingquan
HE XIN
GUO PENGLIANG

Assignees

中认诺也(江苏)检验认证有限公司

Dates

Publication Date: 20260505
Application Date: 20230605

Claims (3)

1. The refrigerator frosting detection method is characterized by comprising the following detection steps of: 1) Placing the tensioned rods in the set spaces between the fins; 2) Knocking a rod arranged between adjacent fins to enable the rod to vibrate, further making sound, and recording the frequency of the sound through a recorder; 3) Dripping water to the rod arranged between the adjacent fins, condensing the water in the space and tightly binding the water to the rod, knocking the rod again to make the rod vibrate, making sound, and recording the frequency of the sound again through the recorder; 4) The sound frequency detected by the front-back contrast recorder is further combined with the sound frequency detected in the process of knocking the rod to judge whether frosting exists between the fins or not and determine the frosting position; And a detector for implementing the method, the detector comprising: a rod positioned in the space between the two fins; a bracket positioned laterally of the fins, wherein the bracket has a plurality of clips, and each clip is clamped to an end of a fin; The rod extends out to the bracket from the interval between the two fins; a wheel carrier which is in sliding fit with the bracket; The wheel is rotatably arranged in the wheel frame, wherein the outward extending part of the rod is positioned in the rotation range of the wheel when the wheel frame axially rotates, and is used for enabling the rod to vibrate and sound through the wheel striking the outward extending part of the rod when the wheel frame slides relative to the bracket, so as to judge whether frost is formed between fins where the rod is positioned; the parts of the rods extending outwards are rotatably arranged at the two brackets; the wheel comprises a rotating wheel and a plurality of blades which are annularly arranged at the rotating wheel, wherein each blade is obliquely fixed at the rotating wheel and is used for limiting the rotating wheel to rotate only in a unique direction relative to a wheel frame; the second rotating wheel groove is internally provided with a rotating wheel shaft which is the rotating shaft of the rotating wheel.
2. The refrigerator bloom detection method as claimed in claim 1, wherein the portion of the lever protruding outward is fixed at two brackets.
3. The refrigerator frost detecting method according to claim 1, wherein a first wheel groove is provided between the wheel frame and the bracket, wherein the wheel extends into the first wheel groove, so that the wheel frame is clamped in the bracket.

Description

Refrigerator frosting detection method Technical Field The invention relates to the field of frost detection, in particular to a refrigerator frost detection method. Background The large-area frosting in the refrigerator can obviously reduce the refrigeration efficiency, so that the power consumption of the refrigerator is increased, the noise is increased, and as shown in fig. 1, the exposed evaporator in the refrigerator is a disaster area with frosting in the refrigerator, so that the frosting can be found early by monitoring the state of the evaporator, and the frosting problem is further solved. Early evaporators as shown in fig. 1, which have a plurality of fins with small spacing, were limited to the use of the photoelectric sensor at this stage to detect frost problems only after the ice layer overflows from the fins, and the problem was found that the ice layer was already dense in the fins and had adverse effects, and therefore, in combination with the evaporator shown in fig. 1, a method for detecting frost formation between the fins and a related detection structure were proposed. Disclosure of Invention The invention aims to provide a refrigerator frosting detection method to solve the technical problems that a photoelectric sensor used at the present stage can only detect frosting after an ice layer overflows from a fin, and the problem is found at the moment, the ice layer is already compacted in the fin, and adverse effects are generated. The invention aims to solve the technical problems, and is realized by adopting the following technical scheme: the refrigerator frosting detection method comprises the following detection steps: 1) Placing the tensioned rods in the set spaces between the fins; 2) Knocking a rod arranged between adjacent fins to enable the rod to vibrate, further making sound, and recording the frequency of the sound through a recorder; 3) Dripping water to the rod arranged between the adjacent fins, condensing the water in the space and tightly binding the water to the rod, knocking the rod again to make the rod vibrate, making sound, and recording the frequency of the sound again through the recorder; 4) The sound frequency detected by the front and back contrast recorder is further combined with the sound frequency detected in the process of knocking the rod to judge whether frosting exists between the fins or not and determine the frosting position. A detector, comprising: a rod positioned in the space between the two fins; a bracket positioned laterally of the fins, wherein the bracket has a plurality of clips, and each clip is clamped to an end of a fin; The rod extends out to the bracket from the interval between the two fins; a wheel carrier which is in sliding fit with the bracket; the wheel is rotatably arranged in the wheel frame, the outward extending part of the rod is positioned in the rotation range of the wheel when the wheel axially rotates, and the wheel is used for enabling the rod to vibrate and sound through the wheel striking the outward extending part of the rod when the wheel frame slides relative to the bracket, so that whether frost is formed between fins where the rod is positioned is judged. Preferably, the outwardly projecting portions of the rods are secured at two brackets. Preferably, the outwardly projecting portions of the lever are rotatably disposed at the two brackets. Preferably, the wheel comprises a rotor and an annular array of a plurality of blades at the rotor, wherein each blade is diagonally fixed at the rotor for limiting rotation of the rotor in only one direction relative to the wheel carrier. Preferably, the wheel frame has a second wheel groove for mounting the wheel, wherein the blades extend outwardly relative to the second wheel groove such that the second wheel groove forms a stop for the wheel when counter-rotating. Preferably, the blade has elasticity. Preferably, a first runner groove is formed between the wheel frame and the bracket, wherein the runner extends into the first runner groove, so that the wheel frame is clamped in the bracket. Preferably, the second rotating wheel groove is internally provided with a rotating wheel shaft, and the rotating wheel shaft is the rotating shaft of the rotating wheel. The beneficial effects of the invention are as follows: 1. the invention judges whether frosting exists between the fins based on the sound frequency of the rod during vibration, and can identify the frosting phenomenon before the fins are frosted in a large area. 2. In the detector, the outward extending part of the rod is positioned in the rotation range when the wheel axially rotates, so that when the wheel frame slides relative to the bracket, the wheel can strike the outward extending part of the rod to make the rod vibrate and sound, and further whether frost is formed between fins where the rod is positioned is judged. Drawings FIG. 1 is a schematic view of an evaporator; FIG. 2 is a schematic view of the e