CN115247934B - Refrigerator and tightness detection method thereof - Google Patents
Refrigerator and tightness detection method thereof Download PDFInfo
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- CN115247934B CN115247934B CN202211010144.6A CN202211010144A CN115247934B CN 115247934 B CN115247934 B CN 115247934B CN 202211010144 A CN202211010144 A CN 202211010144A CN 115247934 B CN115247934 B CN 115247934B
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 47
- 230000007246 mechanism Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 description 22
- 230000008014 freezing Effects 0.000 description 20
- 238000007710 freezing Methods 0.000 description 20
- 239000003507 refrigerant Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012797 qualification Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000011555 saturated liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a refrigerator and a method for detecting tightness of the refrigerator. The refrigerator is provided with an evacuating device and a door opening device, and after the door body is closed, the evacuating device is controlled to be started to evacuate the storage chamber; after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode so as to drive the door body to move; when the door body and the box body generate relative displacement, acquiring a driving force which is output currently; and judging the tightness of the refrigerator according to the driving force. By adopting the invention, the tightness of the door seal of the refrigerator can be judged by detecting the opening force of the refrigerator, and the efficiency and the accuracy of the tightness detection of the refrigerator are improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a sealing performance detection method of the refrigerator.
Background
With the increasing promotion of the quality of life of people, refrigerators have become indispensable devices for daily life. The sealing property of the refrigerator has a great influence on the refrigerating effect of the refrigerator. When the air tightness of the refrigerator is poor, the heat load of the refrigerator is increased, the compressor needs to do more work to maintain the room temperature in unit time, and the energy consumption is increased; secondly, when the sealing of the refrigerator is poor, wet air in the environment enters the refrigerator, the frosting quantity of the evaporator is increased, the refrigerating efficiency of the system is reduced, and the frost blockage of the evaporator can be caused when the refrigerating efficiency is serious; in addition, the poorly sealed position is prone to condensation, which affects the user experience.
There are many factors affecting the sealing performance of the refrigerator, and whether the door seal of the refrigerator leaks cold is one of the most critical factors. In practical application, there are many factors that can influence the air tightness of the door seal of the refrigerator, for example, the door seal is distorted and deformed due to improper placement in the transportation process, the door seal is not embedded in place, the U-shaped shell or the box liner is in size processing deviation and installation deviation, the position of the box body foaming mold is improperly adjusted, the U-shaped shell sheet metal is deformed at the corner due to external force, and the like. Therefore, detection of the effect of confidentiality of the door seal of the refrigerator is important.
At present, the methods for checking the tightness of the refrigerator mainly comprise the following two methods: a paper sheet method and a lamplight method. The paper sheet method is to place paper sheets with fixed size and thickness at any point on a door seal, then normally close the door to press the door on the paper sheets, and check whether the paper sheets can slide freely; the light method is to normally close the refrigerator door and illuminate the refrigerator door, and whether light leakage exists around the door seal is detected. If the paper sheet does not slide freely or there is no light leakage around the door seal, the box is considered to be well sealed. However, the inventors found that the prior art has at least the following problems: the paper sheet method can only detect point by point, the light method is not easy to observe the door seals at the top and the bottom of the box body, and the two methods can only identify obvious leakage positions and have low detection efficiency.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and a method for detecting the tightness of the refrigerator, which can judge the tightness of a door seal of the refrigerator by detecting the opening force of the refrigerator, and improve the efficiency and the accuracy of the tightness detection of the refrigerator.
To achieve the above object, an embodiment of the present invention provides a refrigerator including:
the box body is internally provided with a storage chamber;
the door body is provided with a door seal, and the door body and the box body are adsorbed together through the door seal;
the evacuating device is communicated with the interior of the storage chamber and is used for evacuating the storage chamber;
the door opening device is used for outputting driving force to drive the door body to move and recording the output driving force;
control means for:
after the door body is closed, controlling the evacuating device to start and execute evacuating operation;
after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode;
when the door body and the box body generate relative displacement, acquiring a driving force which is output currently;
and judging the tightness of the refrigerator according to the driving force.
As an improvement of the above solution, the judging the tightness of the refrigerator according to the magnitude of the driving force specifically includes:
when the driving force is greater than or equal to a preset door opening force, judging that the tightness of the refrigerator meets a preset sealing standard;
and when the driving force is smaller than the preset door opening force, judging that the tightness of the refrigerator does not accord with a preset sealing standard.
As an improvement of the scheme, the preset door opening force is comprehensively determined according to the evacuating time, the volume of the storage chamber, the magnetic attraction force of the door seal, the material of the door body and the internal structure of the storage chamber.
As an improvement of the above-mentioned scheme, the refrigerator further includes a drain pipe, one end of which communicates with the inside of the storage chamber, the drain pipe being for performing a drain operation;
the evacuating device is detachably connected with the other end of the drain pipe; the evacuating device is connected with the drain pipe and then communicated with the interior of the storage chamber through the drain pipe.
As an improvement of the above, the evacuation device includes a connection hose and a vacuum pump connected to the drain pipe through the connection hose.
As an improvement of the above-mentioned scheme, the door opening device includes a door body driving mechanism and a driving force detecting mechanism;
the door body driving mechanism is used for outputting driving force to drive the door body to move;
the driving force detection mechanism is used for detecting and recording the driving force output by the door body driving mechanism.
As an improvement of the scheme, the refrigerator further comprises an information pushing device;
the control device is also used for:
after judging the tightness of the refrigerator, controlling the information pushing device to execute preset information pushing operation, wherein the preset information pushing operation is used for indicating the tightness detection result of the refrigerator.
The embodiment of the invention also provides a method for detecting the tightness of the refrigerator, which comprises the following steps:
the box body is internally provided with a storage chamber;
the door body is provided with a door seal, and the door body and the box body are adsorbed together through the door seal;
the evacuating device is communicated with the interior of the storage chamber and is used for evacuating the storage chamber;
the door opening device is used for outputting driving force to drive the door body to move and recording the output driving force;
the method comprises the following steps:
after the door body is closed, controlling the evacuating device to start and execute evacuating operation;
after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode;
when the door body and the box body generate relative displacement, acquiring a driving force which is output currently;
and judging the tightness of the refrigerator according to the driving force.
As an improvement of the above solution, the judging the tightness of the refrigerator according to the magnitude of the driving force specifically includes:
when the driving force is greater than or equal to a preset door opening force, judging that the tightness of the refrigerator meets a preset sealing standard;
and when the driving force is smaller than the preset door opening force, judging that the tightness of the refrigerator does not accord with a preset sealing standard.
As an improvement of the scheme, the preset door opening force is comprehensively determined according to the evacuating time, the volume of the storage chamber, the magnetic attraction force of the door seal, the material of the door body and the internal structure of the storage chamber.
Compared with the prior art, the refrigerator and the method for detecting the tightness of the refrigerator are disclosed in the embodiment of the invention. The refrigerator is provided with an evacuating device and a door opening device, and after the door body is closed, the evacuating device is controlled to start and execute evacuating operation; after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode; when the door body and the box body generate relative displacement, acquiring a driving force which is output currently; and judging the tightness of the refrigerator according to the driving force. By adopting the technical means of the embodiment of the invention, after the door body is closed, the evacuation operation is firstly carried out through the evacuation device, so that the aim is that under the condition that the sealing performance of the refrigerator is good, the internal and external environments of the storage chamber can form obvious pressure difference, the driving force required for opening the refrigerator door is increased, under the condition that the sealing performance of the refrigerator is poor, the pressure difference formed by the internal and external environments of the storage chamber is not obvious, the driving force required for opening the refrigerator is smaller, and further, in the detection process, the opening driving force required for generating relative displacement between the door body and the refrigerator body is obtained, the sealing condition of the refrigerator is judged through different driving forces required for different sealing performance of the refrigerator, the operation is simple and quick, and the efficiency and the accuracy of detecting the sealing performance of the refrigerator are effectively improved. In addition, the refrigerator tightness detection mode provided by the embodiment of the invention can be suitable for various application scenes, for example, can be applied to the refrigerator products before leaving the factory, can be used for detecting the qualification rate of the refrigerator products, can also be applied to the daily use process of users, can be used for detecting the failure rate of the refrigerator products, and can be used for reducing the reject ratio of the refrigerator products.
Drawings
Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention in a first preferred embodiment;
FIG. 2 is a schematic flow chart of the first preferred embodiment of the control device according to the embodiment of the present invention;
FIG. 3 is a schematic flow chart of the second preferred embodiment of the control device according to the embodiment of the present invention;
fig. 4 is a schematic view of a refrigerator in a second preferred embodiment according to an embodiment of the present invention;
fig. 5 is a schematic view showing a structure of a refrigerator in a third preferred embodiment according to an embodiment of the present invention;
fig. 6 is a schematic view of a structure of a refrigerator in a fourth preferred embodiment according to an embodiment of the present invention;
fig. 7 is a schematic view of a structure of a refrigerator in a fifth preferred embodiment in an embodiment of the present invention;
FIG. 8 is a schematic view of a door opener in accordance with an embodiment of the present invention in a preferred embodiment;
FIG. 9 is a schematic flow chart of the third preferred embodiment of the control device according to the embodiment of the present invention;
fig. 10 is a schematic flow chart of a method for detecting tightness of a refrigerator according to an embodiment of the present invention;
wherein, 1, box, 11, storing room, 12, cold storage room, 13, freezer, 2, door, 21, door seal, 22, cold storage room door, 23, freezer door, 3, evacuating device, 31, connecting hose, 32, vacuum pump, 4, door opener, 41, door driving mechanism, 42, driving force detecting device, 5, controlling means, 6, drain pipe, 61, cold storage room drain pipe, 62, freezer drain pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a schematic structural diagram of a refrigerator according to a first preferred embodiment of the present invention is shown. The embodiment of the invention provides a refrigerator, which comprises a refrigerator body 1 and a door body 2, wherein at least one storage chamber 11 is arranged in the refrigerator body 1 and is used for storing articles with fresh-keeping or freezing requirements. The door seals 21 are arranged on the periphery of the door body 2, magnetic strips are arranged in the door seals 21, after the refrigerator door body is closed, the door seals 21 are overlapped with the refrigerator body 1, and the door body 2 and the refrigerator body 1 can be adsorbed together through the door seals 21, so that a closed storage space is formed in the storage chamber 11 in the refrigerator body 1.
In addition, the refrigerator further includes a refrigerating system for performing a refrigerating operation of the refrigerator. The refrigerator performs a refrigerating operation through the refrigerating system, and provides cold energy to be transferred into the storage chamber so as to maintain the storage chamber in a constant low-temperature state. Specifically, the refrigerating system of the refrigerator provided by the embodiment of the invention comprises a compressor, a condenser, a drying filter, a capillary tube and an evaporator, and the working composition of the refrigerating system comprises a compression process, a condensation process, a throttling process and an evaporation process.
The compression process comprises the following steps: a refrigerator power line is inserted, under the condition that the refrigerator body has refrigeration requirement, the compressor starts to work, low-temperature and low-pressure refrigerant is sucked by the compressor, and the refrigerant is compressed into high-temperature and high-pressure superheated gas in a compressor cylinder and then is discharged into a condenser; the condensation process is as follows: the high-temperature and high-pressure refrigerant gas is radiated by a condenser, the temperature is continuously reduced, the refrigerant gas is gradually cooled into normal-temperature and high-pressure saturated vapor, the saturated vapor is further cooled into saturated liquid, the temperature is not reduced any more, and the temperature at the moment is called as condensation temperature. The pressure of the refrigerant is almost unchanged in the whole condensation process; the throttling process is as follows: the condensed refrigerant saturated liquid is filtered by a drying filter to remove moisture and impurities, and then flows into a capillary tube, throttling and depressurization are carried out through the capillary tube, and the refrigerant is changed into wet vapor at normal temperature and low pressure; the evaporation process is as follows: the subsequent vaporization begins by absorbing heat within the evaporator, not only reducing the temperature of the evaporator and its surroundings, but also turning the refrigerant into a low temperature, low pressure gas. The refrigerant from the evaporator returns to the compressor again, and the above process is repeated, so that the heat in the refrigerator is transferred to the air outside the refrigerator, and the purpose of refrigeration is achieved.
Further, the refrigerator is also provided with an evacuation device 3, a door opening device 4 and a control device 5. The evacuation device 3 communicates with the interior of the storage chamber 11 for performing an evacuation operation of the storage chamber 11. The door opening device 4 is arranged on the door body 2 and is used for outputting driving force to drive the door body to move so as to realize the opening and closing of the door body 2, and the door opening device 4 can also record the magnitude of the driving force output by the door opening device.
The control device 5 is connected with the evacuation device 3 and the door opening device 4 and performs information interaction for performing corresponding operations such as data acquisition, analysis and control.
Specifically, referring to fig. 2, a schematic flow chart of the operation performed by the control device in the first preferred embodiment of the present invention is shown. The control device 5 is configured to perform the following steps S11 to S14:
s11, after the door body is closed, controlling the evacuating device to start and execute evacuating operation;
s12, after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode;
s13, when the door body and the box body generate relative displacement, acquiring a currently output driving force;
s14, judging the tightness of the refrigerator according to the driving force.
In the embodiment of the invention, when the tightness detection of the refrigerator is required, the door body 2 is closed firstly to form a sealed space inside the refrigerator body 1, and after the door body 2 is closed, the evacuating device 3 is controlled to start to operate, so that the storage chamber 11 is evacuated, and negative pressure is generated in the storage chamber 11 relative to the external environment. The evacuation operation is controlled for a certain period of time so that the air pressure caused by the negative pressure inside the storage chamber 11 after evacuation is within a preset range. When the evacuation operation performed by the evacuation device 3 reaches the preset evacuation time period t, the evacuation device 3 is controlled to stop operating. Then, the door opening device 4 is controlled to output driving force, and the output driving force is gradually increased from a lower initial value, in the process, when the driving force output by the door opening device 4 reaches a size capable of driving the door body 2 to move, the door body 2 and the box body 1 generate relative displacement, and at the moment, the control device 5 acquires the driving force F output by the door opening device 4 and recorded. For a refrigerator with good sealing, when the door body 2 of the refrigerator needs to overcome the magnetic attraction of the door seal 21 and the air pressure caused by the negative pressure in the storage chamber 11 at the same time, the required driving force F is larger; for a refrigerator with poor sealing performance, the evacuation operation cannot generate obvious negative pressure inside and outside the storage chamber 11, so that the required driving force F is relatively small, and therefore, the sealing performance of the refrigerator can be judged according to the driving force F.
Alternatively, the tightness level of the refrigerator is determined according to the currently acquired driving force F by setting a plurality of tightness levels, such as three levels of better tightness, middle tightness and worse tightness, and setting the correspondence between the driving force and the tightness level.
Alternatively, the evacuation period t is set to 5 minutes. Of course, in practical applications, the setting and adjustment may be performed according to the actual situation such as the volume of the storage chamber 11, and the present invention is not limited specifically herein.
In order to improve the detection accuracy of the sealing property, it is necessary to ensure that no other structure capable of exhausting air exists in the case after the door is closed, for example, when the refrigerator further includes an exhaust pipe and a drain pipe connected to the external environment, the exhaust pipe and the drain pipe need to be sealed.
As a preferred embodiment, referring to fig. 3, a schematic flow chart of the control device according to the embodiment of the present invention, which is implemented in the second preferred embodiment. The embodiment of the present invention is further implemented on the basis of the foregoing embodiment, and step S14, that is, the judging the tightness of the refrigerator according to the magnitude of the driving force, specifically includes steps S141 and S142:
s141, when the driving force is greater than or equal to a preset door opening force, judging that the tightness of the refrigerator meets a preset sealing standard;
and S142, when the driving force is smaller than the preset door opening force, judging that the tightness of the refrigerator does not meet the preset sealing standard.
In the embodiment of the invention, the door opening force F0 is preset as a comparison standard of the driving force F required by the door body movement. The preset door opening force is comprehensively determined according to the evacuating time t, the volume of the storage chamber, the magnetic attraction of the door seal, the material of the door body and the internal structure of the storage chamber. In general, under the condition that other factors are unchanged, the preset door opening force and the evacuating duration t are in positive correlation, and the preset door opening force and the volume of the storage chamber are in negative correlation.
Further, after the driving force F which is output and recorded by the door opening device 4 when the door body 2 and the box body 1 are relatively displaced is obtained, the magnitude relation of the driving force F and the door opening force F0 is compared, if F is more than or equal to F0, the sealing performance of the refrigerator is up to standard, the refrigerator does not have obvious cold leakage condition, and if F is less than F0, the sealing performance of the refrigerator is not up to standard, and the refrigerator has obvious cold leakage condition.
The embodiment of the invention provides a refrigerator, which is provided with an evacuating device and a door opening device, wherein after a door body is closed, the evacuating device is controlled to start and execute evacuating operation; after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode; when the door body and the box body generate relative displacement, acquiring a driving force which is output currently; and judging the tightness of the refrigerator according to the driving force.
By adopting the technical means of the embodiment of the invention, after the door body is closed, the evacuation operation is firstly carried out through the evacuation device, so that the aim is that under the condition that the sealing performance of the refrigerator is good, the internal and external environments of the storage chamber can form obvious pressure difference, the driving force required for opening the refrigerator door is increased, under the condition that the sealing performance of the refrigerator is poor, the pressure difference formed by the internal and external environments of the storage chamber is not obvious, the driving force required for opening the refrigerator is smaller, and further, in the detection process, the opening driving force required for generating relative displacement between the door body and the refrigerator body is obtained, the sealing performance condition of the refrigerator is judged through different opening driving forces required for different sealing performance of the refrigerator, the operation is simple and rapid, the efficiency and the accuracy of the sealing performance detection of the refrigerator are effectively improved, and the defective rate of refrigerator products is reduced. The refrigerator tightness detection mode provided by the embodiment of the invention can be suitable for various application scenes, for example, can be applied to the refrigerator products before leaving factories, can be used for detecting the qualification of the refrigerator products in the daily use process of users, can be used for detecting the failure of the refrigerator products, is preferably suitable for implementation in the period that the refrigerator does not execute refrigeration operation, can effectively eliminate the influence of refrigerator operation factors on detection results, such as the change of the pressure in the refrigerator caused by the change of the temperature in the refrigerator, and can ensure the accuracy of the detection results even if the refrigerator is applied to the refrigerator in the power-on operation process due to the simple and quick detection mode.
As a preferred embodiment, referring to fig. 4, there is a schematic structural view of a refrigerator in a second preferred embodiment according to an embodiment of the present invention. The refrigerator further comprises a drain pipe 6, one end of the drain pipe 6 is communicated with the interior of the storage chamber 11, the evacuating device 3 is detachably connected with the other end of the drain pipe 6, and after the evacuating device 3 is connected with the drain pipe 6, the evacuating device is communicated with the interior of the storage chamber 11 through the drain pipe 6.
In the embodiment of the invention, the drain pipe 6 is an original structural component of the refrigerator, one end of the drain pipe 6 is communicated with the storage chamber 11, and the lower end of the drain pipe is deep into the compressor chamber, so that the defrosting water of the evaporator is discharged out of the refrigerator body, and when the refrigerator door is closed, the drain pipe 6 is the only channel for communicating the internal space of the refrigerator with the external environment. Thus, the embodiment of the present invention connects the evacuation device 3 with the end of the drain pipe 6 protruding outside, and the evacuation operation of the storage chamber 11 is performed through the drain pipe 6.
By adopting the technical means of the embodiment of the invention, on one hand, the connection structure of the evacuating device and the storage chamber is simplified, and on the other hand, the sealing effect on the drain pipe can be achieved, and the inaccurate detection result caused by the leakage of the drain pipe in the evacuating process of sealing detection is avoided.
As a preferred embodiment, referring to fig. 5, there is a schematic structural view of a refrigerator in a third preferred embodiment according to an embodiment of the present invention. The embodiment of the present invention is further implemented on the basis of the above embodiment, in that the evacuation device 3 comprises a connection hose 31 and a vacuum pump 32, the vacuum pump 32 being connected to the drain pipe 6 via the connection hose 31. Wherein the vacuum pump 32 is used to effect an evacuation operation of the storage compartment 11.
More preferably, referring to fig. 6 and 7, fig. 6 is a schematic view of a structure of a refrigerator in a fourth preferred embodiment in an embodiment of the present invention; fig. 7 is a schematic view of a refrigerator in a fifth preferred embodiment according to an embodiment of the present invention. In the embodiment of the invention, the refrigerator body 1 comprises two storage chambers, namely a refrigerating chamber 12 and a freezing chamber 13, wherein the refrigerating chamber 12 is used for realizing the functions of refrigerating and preserving, the internal temperature of the refrigerator is usually 0-10 ℃, the freezing chamber 13 is used for realizing the freezing function at a constant speed, and the internal temperature of the refrigerator is usually below 0 ℃. The door body 2 includes a refrigerating chamber door body 22 corresponding to the refrigerating chamber 12 and a freezing chamber door body 23 corresponding to the freezing chamber 13, respectively.
In one embodiment, referring to fig. 6, the refrigerating chamber 12 and the freezing chamber 13 are communicated, a drain pipe 6 is shared between the refrigerating chamber 12 and the freezing chamber 13 for draining, the evacuating device 3 is connected with the drain pipe 6 to realize the common evacuating operation of the refrigerating chamber 12 and the freezing chamber 13, and in the process of detecting the tightness of the refrigerator, the door opening device 4 can be arranged on the refrigerating chamber door body 22 only or the freezing chamber door body 23 only, or can be respectively arranged on two door bodies, so that the door opening driving force of the two door bodies is detected. Regardless of the arrangement, when the driving force F is detected to be smaller than the preset opening force F0, it is determined that the tightness of the refrigerator does not meet the preset sealing standard, and it may be that the sealing of the refrigerating chamber door 22 does not reach the standard, or that the sealing of the freezing chamber door 23 does not reach the standard, so that further detection and analysis are required.
In another embodiment, referring to fig. 7, the refrigerating chamber 12 and the freezing chamber 13 are not communicated, the corresponding drain pipes between the refrigerating chamber 12 and the freezing chamber 13 are respectively used for draining, namely, the refrigerating chamber drain pipe 61 and the freezing chamber drain pipe 62, in the application process, the tightness of the refrigerating chamber 12 and the freezing chamber 13 is respectively detected, the evacuating device 3 is connected with one of the drain pipes, such as the refrigerating chamber drain pipe 61, so as to realize the evacuating operation of the refrigerating chamber 12, the door opening device 4 is arranged on the refrigerating chamber door body 22, the door opening driving force of the refrigerating chamber door body 22 is detected, and when the driving force F is detected to be smaller than the preset door opening force F0, the tightness of the refrigerator is judged to be not in accordance with the preset sealing standard, and the fact that the tightness of the refrigerating chamber door body 22 is not up to standard can be determined. Similarly, the evacuating device 3 is connected with the freezing chamber drain pipe 62 to realize evacuating operation of the freezing chamber 13, the door opening device 4 is arranged on the freezing chamber door body 23, door opening driving force is detected for the freezing chamber door body 23, and when the driving force F is detected to be smaller than a preset door opening force F0, the tightness of the refrigerator is judged to be not in accordance with a preset sealing standard, so that the sealing of the freezing chamber door body 23 is determined to be not up to standard.
As a preferred embodiment, referring to fig. 8, a schematic structural diagram of a door opening device according to an embodiment of the present invention is shown in a preferred embodiment. In the embodiment of the present invention, the door opening device 4 includes a door body driving mechanism 41 and a driving force detecting mechanism 42; the door driving mechanism 41 is used for outputting driving force to drive the door to move; the driving force detection mechanism 42 is used for detecting and recording the driving force output by the door driving mechanism.
More preferably, the door driving mechanism 41 includes a vacuum chuck, a mechanical arm and a motor, the mechanical arm is driven by the motor to drive the door body sucked by the vacuum chuck to open and close, the driving force of the motor is continuous and adjustable, and the positions of the mechanical arm and the vacuum chuck can be adaptively adjusted according to the actual position of the refrigerator door, which is not particularly limited herein.
As a preferred embodiment, the refrigerator further comprises an information pushing device;
then, referring to fig. 9, which is a schematic flow chart of the third preferred embodiment of the operation performed by the control device in the embodiment of the present invention, the control device 5 is further configured to perform step S15:
and S15, after judging the tightness of the refrigerator, controlling the information pushing device to execute preset information pushing operation, wherein the preset information pushing operation is used for indicating the tightness detection result of the refrigerator.
Specifically, when the tightness of the refrigerator is judged to be in accordance with a preset sealing standard, the information pushing device is controlled to push the detection result that the tightness of the refrigerator is up to standard, and when the tightness of the refrigerator is judged to be not in accordance with the preset sealing standard, the information pushing device is controlled to push the detection result that the tightness of the refrigerator is not up to standard.
The information pushing device can be arranged into a display module, such as a water and ink display screen, an LED indicator lamp and the like, and displays different preset text information or lamp lighting information according to different tightness detection results in the application process; the device can also be set as a sound module, such as a buzzer, a voice player and the like, and different preset voice information or alarm sound information can be played according to different tightness detection results in the application process; of course, the combination of the two forms can be also adopted, other information pushing modes can be adopted, and the specific content of the pushed information can be set according to the habit and preference of the user, so that the beneficial effects of the invention are not affected.
Referring to fig. 10, a flow chart of a method for detecting tightness of a refrigerator according to an embodiment of the present invention is shown. The embodiment of the invention also provides a method for detecting the tightness of the refrigerator, which is applied to the refrigerator, and the refrigerator comprises the following steps:
the box body is internally provided with a storage chamber;
the door body is provided with a door seal, and the door body and the box body are adsorbed together through the door seal;
the evacuating device is communicated with the interior of the storage chamber and is used for evacuating the storage chamber;
the door opening device is used for outputting driving force to drive the door body to move and recording the output driving force;
the method for detecting the tightness of the refrigerator is carried out by steps S21 to S24:
s21, after the door body is closed, controlling the evacuating device to start and execute evacuating operation;
s22, after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode;
s23, when the door body and the box body generate relative displacement, acquiring a currently output driving force;
s24, judging the tightness of the refrigerator according to the driving force.
Preferably, step S24, that is, the judging of the tightness of the refrigerator according to the magnitude of the driving force, specifically includes steps S241 to S242:
s241, when the driving force is greater than or equal to a preset door opening force, judging that the tightness of the refrigerator meets a preset sealing standard;
and S242, when the driving force is smaller than the preset door opening force, judging that the tightness of the refrigerator does not meet the preset sealing standard.
Preferably, the preset door opening force is determined comprehensively according to the evacuating time, the volume of the storage chamber, the magnetic attraction force of the door seal, the material of the door body and the internal structure of the storage chamber.
By adopting the technical means of the embodiment of the invention, after the door body is closed, the evacuation operation is firstly carried out through the evacuation device, so that the aim is that under the condition that the sealing performance of the refrigerator is good, the internal and external environments of the storage chamber can form obvious pressure difference, the driving force required for opening the refrigerator door is increased, under the condition that the sealing performance of the refrigerator is poor, the pressure difference formed by the internal and external environments of the storage chamber is not obvious, the driving force required for opening the refrigerator is smaller, and further, in the detection process, the opening driving force required for generating relative displacement between the door body and the refrigerator body is obtained, the sealing condition of the refrigerator is judged through different driving forces required for different sealing performance of the refrigerator, the operation is simple and quick, and the efficiency and the accuracy of detecting the sealing performance of the refrigerator are effectively improved. In addition, the refrigerator tightness detection method provided by the embodiment of the invention can be suitable for various application scenes, for example, can be applied to the refrigerator products before leaving the factory, can be used for detecting the qualification rate of the refrigerator products, can also be applied to the daily use process of users, can be used for detecting the failure rate of the refrigerator products, and can be used for reducing the reject ratio of the refrigerator products.
It should be noted that, the method for detecting the tightness of the refrigerator provided by the embodiment of the present invention is the same as all the steps of the flow executed by the control device of the refrigerator in the above embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the description is omitted.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a random access memory (RandomAccessMemory, RAM), or the like.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (6)
1. A refrigerator, comprising:
the box body is internally provided with a storage chamber;
the door body is provided with a door seal, and the door body and the box body are adsorbed together through the door seal;
the evacuating device is communicated with the interior of the storage chamber and is used for evacuating the storage chamber;
the door opening device is used for outputting driving force to drive the door body to move and recording the output driving force;
control means for:
after the door body is closed, controlling the evacuating device to start and execute evacuating operation;
after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode;
when the door body and the box body generate relative displacement, acquiring a driving force which is output currently;
judging the tightness of the refrigerator according to the driving force;
the tightness of the refrigerator is judged according to the driving force, specifically:
when the driving force is greater than or equal to a preset door opening force, judging that the tightness of the refrigerator meets a preset sealing standard;
when the driving force is smaller than the preset door opening force, judging that the tightness of the refrigerator does not accord with a preset sealing standard; the preset door opening force is comprehensively determined according to the evacuating time, the volume of the storage chamber, the magnetic attraction of the door seal, the material of the door body and the internal structure of the storage chamber.
2. The refrigerator of claim 1, further comprising a drain pipe having one end in communication with the interior of the storage compartment, the drain pipe being for performing a drain operation;
the evacuating device is detachably connected with the other end of the drain pipe; the evacuating device is connected with the drain pipe and then communicated with the interior of the storage chamber through the drain pipe.
3. The refrigerator as claimed in claim 2, wherein the evacuator includes a connection hose and a vacuum pump connected to the drain pipe through the connection hose.
4. The refrigerator as claimed in claim 1, wherein the door opening device includes a door body driving mechanism and a driving force detecting mechanism;
the door body driving mechanism is used for outputting driving force to drive the door body to move;
the driving force detection mechanism is used for detecting and recording the driving force output by the door body driving mechanism.
5. The refrigerator according to any one of claims 1 to 4, further comprising an information pushing device;
the control device is also used for:
after judging the tightness of the refrigerator, controlling the information pushing device to execute preset information pushing operation, wherein the preset information pushing operation is used for indicating the tightness detection result of the refrigerator.
6. A method for detecting tightness of a refrigerator, the refrigerator comprising:
the box body is internally provided with a storage chamber;
the door body is provided with a door seal, and the door body and the box body are adsorbed together through the door seal;
the evacuating device is communicated with the interior of the storage chamber and is used for evacuating the storage chamber;
the door opening device is used for outputting driving force to drive the door body to move and recording the output driving force;
the method comprises the following steps:
after the door body is closed, controlling the evacuating device to start and execute evacuating operation;
after the evacuating device runs for a preset evacuating time, controlling the evacuating device to stop running, and controlling the door opening device to output driving force in an incremental mode;
when the door body and the box body generate relative displacement, acquiring a driving force which is output currently;
judging the tightness of the refrigerator according to the driving force;
the tightness of the refrigerator is judged according to the driving force, specifically:
when the driving force is greater than or equal to a preset door opening force, judging that the tightness of the refrigerator meets a preset sealing standard;
when the driving force is smaller than the preset door opening force, judging that the tightness of the refrigerator does not accord with a preset sealing standard; the preset door opening force is comprehensively determined according to the evacuating time, the volume of the storage chamber, the magnetic attraction of the door seal, the material of the door body and the internal structure of the storage chamber.
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| CN202211010144.6A CN115247934B (en) | 2022-08-23 | 2022-08-23 | Refrigerator and tightness detection method thereof |
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| CN202211010144.6A CN115247934B (en) | 2022-08-23 | 2022-08-23 | Refrigerator and tightness detection method thereof |
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| KR20150048525A (en) * | 2013-10-28 | 2015-05-07 | 엘지전자 주식회사 | Refrigerator and control method thereof |
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| CN115247934A (en) | 2022-10-28 |
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