CN111473590B

CN111473590B - Refrigerator sealing device and control method thereof

Info

Publication number: CN111473590B
Application number: CN202010327673.3A
Authority: CN
Inventors: 崔培培; 尚殿波; 刘全义
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-11-09
Anticipated expiration: 2040-04-23
Also published as: CN111473590A

Abstract

The invention discloses a refrigerator sealing device and a control method thereof, and relates to the technical field of refrigerator sealing. The coil winding assembly is arranged between the inner liner of the refrigerator and the metal side plate; the coil winding assembly comprises a lead, a magnetic core and a connecting piece; magnetic cores are installed in the installation grooves formed in the uniformly distributed connecting pieces in a matching manner; the conducting wire is wound around the periphery of the magnetic core to form a conducting wire coil; the coil winding assembly is embedded into the periphery of the inner liner of the refrigerator to form a closed complete magnetic field; one side of the door seal is provided with a door seal magnetic strip; the door seal corresponds to a coil winding assembly on the refrigerator lining; the coil winding assembly is contacted with the door seal magnetic strip for adsorption; the wire is connected with the refrigerator main control unit. According to the invention, the coil winding assembly is arranged between the refrigerator lining and the metal side plate, and a lead of the coil winding assembly is connected with the main control unit of the refrigerator; the realization is to the magnetic control of coil winding subassembly, and then realizes sealing the control that magnetic stripe and coil winding subassembly adsorb to the door to convenient control box and the sealed of the door body, convenient practicality.

Description

Refrigerator sealing device and control method thereof

Technical Field

The invention belongs to the technical field of refrigerator sealing, and particularly relates to a refrigerator sealing device and a control method thereof.

Background

In the prior art, a door seal is an important part influencing the performance of a refrigerator; the refrigerator body is hermetically connected with the door body through a refrigerator door seal. The refrigerator door sealing strip is a sealing plastic strip formed by combining PVC or TPE soft materials and permanent magnetic adhesive tapes. The sealing condition of the refrigerator door sealing strip directly influences the exchange of cold and hot gas inside and outside the refrigerator body. The hot and humid air outside the refrigerator enters the refrigerator through the door seal, the hot and humid air is cooled by the evaporator, the water vapor brought by the hot and humid air is condensed into frost on the evaporator, and the frost layer is heated and melted by the air-cooled refrigerator by utilizing the own defrosting heater. Therefore, the sealing of the door body plays a key role in the power consumption and the frosting reliability of the refrigerator.

After the existing door seal is used for a long time, the magnetism of the magnetic strip of the door seal strip can be reduced, the door seal can be hardened under the condition of low temperature for a long time, the door body is easy to close and is not tight, so that more hot air enters the refrigerator, the refrigerator is iced and frosted in the refrigerator in a large amount, and the energy consumption of the refrigerator is increased. Meanwhile, the user opens and closes the door and has certain randomness, the existing door seal attracting magnetic force is fixed, if the door body is not closed in place, the refrigerator can be frosted seriously, frequent defrosting is realized, the condition is not easy to be found by the user, the refrigerator is developed for a long time, frequent defrosting possibly occurs, water in the water receiving tray overflows, and the user experience is influenced.

The invention provides a refrigerator sealing device and a control method thereof, which are used for solving the problems.

Disclosure of Invention

The invention aims to provide a refrigerator sealing device and a control method thereof.A coil winding assembly is arranged between a refrigerator liner and a metal side plate, and a lead of the coil winding assembly is connected with a main control unit of a refrigerator; the magnetic control of the coil winding assembly is realized, and the problem of poor door seal attraction caused by magnetic reduction of the door seal after long-term use is solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a refrigerator sealing device, which comprises a box body; the box body comprises a refrigerating chamber and a freezing chamber; the refrigerator body and the door body of the refrigerator are sealed through a door seal; an evaporator is arranged on the back of the inner side of the freezing chamber; the bottom of the evaporator is provided with a defrosting heater; a main control unit of the refrigerator is arranged on the back of the outer side of the refrigerator body,

the refrigerator body comprises a refrigerator inner liner and a metal side plate; a coil winding assembly is arranged between the refrigerator inner liner and the metal side plate; the coil winding assembly comprises a lead, a magnetic core and a connecting piece; the connecting piece is of a rectangular annular structure; magnetic cores are installed in the installation grooves formed in the uniformly distributed connecting pieces in a matching mode; the conducting wire is wound around the periphery of the magnetic core to form a conducting wire coil; the coil winding assembly is embedded into the periphery of the inner liner of the refrigerator to form a closed complete magnetic field;

the door seal is embedded and installed along the peripheral edge of one side face of the door body; a door seal magnetic strip is arranged on one side surface of the door seal; the door seal corresponds to a coil winding assembly on the refrigerator lining; the coil winding assembly is contacted with the door seal magnetic strip for adsorption; the lead is connected with the refrigerator main control unit.

Preferably, the distance between two adjacent magnetic cores along the direction of the connecting piece is 300 mm; the magnetic core is made of silicon steel sheets.

A control method of a refrigerator sealing device comprises the following processes:

s00: powering on the refrigerator and detecting whether a door body is opened or not; if yes, go to S01; if not, executing S02;

s01: the refrigerator main control unit controls the lead to be powered off;

s02: the refrigerator main control unit controls the conducting wire to be electrified and gives a current initial value I0;

s03: detecting a defrosting period T0 and a defrosting heater on time T0;

s04: judging whether the defrosting period T0 is less than or equal to Tm and T0 is more than or equal to Tm; if yes, go to S05; if not, go to S03; wherein Tm is a preset minimum defrosting period, and Tm is a preset maximum on-time of a defrosting heater;

s05: the wire current value is increased by a; wherein a is the step length of each current increase;

s06: judging whether the current value I of the wire is greater than the maximum winding current Imax or not; if yes, a failure of poor sealing is reported; if not, the process returns to S03.

Preferably, the value range of the Tm is 5 to 12 hours; the maximum on-time t0 of the preset defrosting heater ranges from 40 minutes to 60 minutes.

Preferably, the Tm is 8 hours; the t0 is 50 minutes.

Preferably, the initial value of current I0 is 0.1 ampere; the maximum winding current Imax is 0.6 ampere; the current increase step a is 0.05 amps.

One aspect of the present invention has the following advantageous effects:

1. according to the invention, the coil winding assembly is arranged between the refrigerator lining and the metal side plate, and a lead of the coil winding assembly is connected with the main control unit of the refrigerator; the realization is to the magnetic control of coil winding subassembly, and then realizes sealing the control of the absorption of magnetic stripe and coil winding subassembly to convenient control box and the sealed condition of the door body, convenient practicality.

2. The invention provides a control method of a refrigerator sealing device, which controls the defrosting period and the on-time of a defrosting heater through detection; meanwhile, the current of the lead is gradually increased; the problem of door seals actuation that magnetic diminishes and leads to becomes poor for a long time is used to the door seals is solved, solve the user and use the door seals to close and make the door body close the frequent defrosting problem that leads to not in place for a long time, energy-concerving and environment-protective.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a sealing device for a refrigerator according to the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a flowchart illustrating a method for controlling a sealing apparatus of a refrigerator according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

the refrigerator comprises a refrigerator body 1, a refrigerator liner 11, a metal side plate 12, a refrigerating chamber 2, a freezing chamber 3, a door 4, a door seal 5, a door seal magnetic strip 51, an evaporator 6, a defrosting heater 7, a main control unit 8, a coil winding assembly 9, a lead 91, a magnetic core 92 and a connecting piece 93.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open," "upper," "middle," "length," "inner," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention relates to a refrigerator sealing device, which comprises a box body 1; the box body 1 comprises a refrigerating chamber 2 and a freezing chamber 3; the refrigerator body 1 and a door body 4 of the refrigerator are sealed through a door seal 5; an evaporator 6 is arranged on the back of the inner side of the freezing chamber 3; the bottom of the evaporator 6 is provided with a defrosting heater 7; a refrigerator main control unit 8 is arranged on the back of the outer side of the box body 1; in the prior art, a box body 1 is hermetically connected with a door body 4 through a door seal 5; the door seal magnetic strip 51 fixed on the side surface of the existing door seal 5 is fixed magnetically, and the magnetism is reduced after long-term use, so that the box body 1 and the door body 4 are not well attracted, a large amount of hot air enters the box, the wet hot air circulates to the evaporator 5 through wind, is rapidly condensed into frost on the evaporator 5, and is heated and melted by the defrosting heater 7 to remove a frost layer; the invention is used for solving the problem that the long-term suction between the box body 1 and the door body 4 is not good, and comprises the following specific steps:

the refrigerator body 1 comprises a refrigerator liner 11 and a metal side plate 12, wherein the metal side plate 12 is a refrigerator shell side plate; a coil winding assembly 9 is arranged between the refrigerator liner 11 and the metal side plate 12; the coil winding assembly 9 includes a lead wire 91, a magnetic core 92, and a connector 93; the connecting member 93 is a rectangular ring structure; magnetic cores 92 are installed in installation grooves formed in the connecting pieces 93 in an evenly distributed mode in a matching mode; the wire 91 is wound around the periphery of the magnetic core 92 to form a wire coil; the coil winding assembly 9 is embedded in the periphery of the refrigerator liner 11 to form a closed complete magnetic field; the distance between two adjacent magnetic cores 92 is 300mm along the direction of the connecting piece 93; the magnetic core 92 is made of silicon steel sheets;

the door seal 5 is embedded and installed along the peripheral edge of one side surface of the door body 4; one side surface of the door seal 5 is provided with a door seal magnetic strip 51; the door seal 5 corresponds to a coil winding assembly 9 on a refrigerator liner 11; the coil winding assembly 9 is contacted and adsorbed with the door seal magnetic stripe 51, so that the door body 4 is conveniently contacted and adsorbed with the box body 1; the wire 91 is connected to the refrigerator main control unit 8.

Referring to fig. 4, a method for controlling a sealing device of a refrigerator includes the following steps:

s00: powering on the refrigerator and detecting whether the door body 4 is opened or not; if yes, go to S01; if not, executing S02;

s01: the refrigerator main control unit 8 controls the wire 91 to be powered off;

s02: the refrigerator main control unit 8 controls the lead 91 to be electrified and gives an initial current value I0;

s03: detecting a defrosting period T0 and a defrosting heater on time T0;

s05: the wire 91 current value increases by a; wherein a is the step length of each current increase;

s06: judging whether the current value I of the wire 91 is greater than the maximum winding current Imax; if yes, a failure of poor sealing is reported; if not, the process returns to S03.

In actual use, the value range of Tm is 5-12 hours; presetting the value range of the maximum turn-on time tm of the defrosting heater to be 40-60 minutes; through test tests, the Tm is 8 hours and the Tm is 50 minutes, which is relatively good data; at this time, the initial value of the current I0 is 0.1 ampere; the maximum winding current Imax is 0.6 ampere; the current increase step a is 0.05 amps.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A control method of a refrigerator sealing device comprises a box body (1); the box body (1) comprises a refrigerating chamber (2) and a freezing chamber (3); the refrigerator body (1) and a door body (4) of the refrigerator are sealed through a door seal (5); an evaporator (6) is arranged on the back of the inner side of the freezing chamber (3); the bottom of the evaporator (6) is provided with a defrosting heater (7); a main control unit (8) of the refrigerator is arranged on the back of the outer side of the box body (1),

the refrigerator body (1) comprises a refrigerator liner (11) and a metal side plate (12); a coil winding assembly (9) is arranged between the refrigerator inner liner (11) and the metal side plate (12); the coil winding assembly (9) comprises a lead wire (91), a magnetic core (92) and a connecting piece (93); the connecting piece (93) is of a rectangular annular structure; magnetic cores (92) are installed in installation grooves formed in the connecting pieces (93) in an evenly distributed mode in a matching mode; the conducting wire (91) is wound around the periphery of the magnetic core (92) to form a conducting wire coil; the coil winding assembly (9) is embedded into the periphery of the refrigerator liner (11) to form a closed complete magnetic field;

the door seal (5) is embedded and installed along the peripheral edge of one side face of the door body (4); a door seal magnetic strip (51) is arranged on one side surface of the door seal (5); the door seal (5) corresponds to a coil winding assembly (9) on a refrigerator liner (11); the coil winding assembly (9) is in contact with and adsorbed by the door seal magnetic strip (51); the lead (91) is connected with a refrigerator main control unit (8); the distance between two adjacent magnetic cores (92) is 300mm along the direction of the connecting piece (93); the magnetic core (92) is made of silicon steel sheets;

the method is characterized by comprising the following steps:

s00: powering on the refrigerator and detecting whether the door body (4) is opened or not; if yes, go to S01; if not, executing S02;

s01: the refrigerator main control unit (8) controls the power failure of the lead (91);

s02: the refrigerator main control unit (8) controls a lead (91) to be electrified and gives a current initial value I0;

s03: detecting a defrosting period T0 and a defrosting heater on time T0;

s05: -the wire (91) current value increases by a; wherein a is the step length of each current increase;

s06: judging whether the current value I of the wire (91) is greater than the maximum winding current Imax; if yes, a failure of poor sealing is reported; if not, the process returns to S03.

2. The method as claimed in claim 1, wherein the value of Tm is in a range of 5-12 hours; the value range of the preset maximum turn-on time tm of the defrosting heater is 40-60 minutes.

3. The method as claimed in claim 2, wherein the Tm is 8 hours; the tm is 50 minutes.

4. The control method of the sealing device of the refrigerator as claimed in claim 1 or 3, wherein the initial value of the current I0 is 0.1 ampere; the maximum winding current Imax is 0.6 ampere; the current increase step a is 0.05 amps.