CN113883816B - Control method of refrigerator - Google Patents
Control method of refrigerator Download PDFInfo
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- CN113883816B CN113883816B CN202010636863.3A CN202010636863A CN113883816B CN 113883816 B CN113883816 B CN 113883816B CN 202010636863 A CN202010636863 A CN 202010636863A CN 113883816 B CN113883816 B CN 113883816B
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- refrigerator
- door
- air bag
- wall
- sealing
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 109
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 24
- 238000004321 preservation Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 description 15
- 230000008020 evaporation Effects 0.000 description 15
- 230000013011 mating Effects 0.000 description 13
- 230000001154 acute effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 241001442234 Cosa Species 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- F25D29/00—Arrangement or mounting of control or safety devices
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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
- F25D23/08—Parts formed wholly or mainly of plastics materials
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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
- F25D2600/00—Control issues
- F25D2600/02—Timing
-
- 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention provides a control method of a refrigerator, wherein the refrigerator has a normal inflation mode and a quick inflation mode, and the control method comprises the following steps: acquiring the ambient temperature T of the refrigerator, comparing the ambient temperature T with a preset temperature T0, starting a rapid inflation mode when the ambient temperature T is more than or equal to the preset temperature T0, and otherwise, starting a common inflation mode; the rapid inflation mode specifically includes: the method comprises the steps that door opening information is obtained, a sealing air bag between a refrigerator body and a door body is inflated after the door body is opened, meanwhile, the pressure p1 in the sealing air bag is obtained, and when the pressure p1 reaches the preset pressure p2, inflation is stopped; and acquiring door body closing information, and continuously inflating the sealed air bag after the door body is closed until the pressure p1 in the sealed air bag reaches the sealing pressure p3. The invention reduces the heat exchange between the storage space and the surrounding environment, improves the sealing speed and further enhances the heat preservation effect.
Description
Technical Field
The invention relates to a control method of a refrigerator, in particular to a control method of a refrigerator with a faster air bag sealing rate.
Background
At present, some refrigerators adopt to add auxiliary air bags and the cooperation of door strip of paper used for sealing in order to increase the sealed effect, reduce the heat load, however, current gasbag control logic is opened for the door body, and the gasbag exhausts gas to the greatest extent, and the door body is closed, and the gasbag begins to inflate again, and especially when summer, ambient temperature is higher, and the gasbag is aerifyd to sealed pressure required time also more, can't realize sealed very fast, influences the heat preservation effect.
In view of the above, there is a need for an improved control method for a refrigerator to solve the above problems.
Disclosure of Invention
The invention aims to provide a control method of a refrigerator with a faster air bag sealing rate.
In order to achieve the above object, the present invention provides a control method of a refrigerator, wherein the refrigerator has a normal air-filling mode and a quick air-filling mode, the control method comprising: acquiring the ambient temperature T of the refrigerator, comparing the ambient temperature T with a preset temperature T0, starting a rapid inflation mode when the ambient temperature T is more than or equal to the preset temperature T0, and otherwise, starting a common inflation mode; the rapid inflation mode specifically includes: the method comprises the steps of obtaining door body opening information, inflating a sealing air bag between a refrigerator body and a door body after the door body is opened, obtaining pressure p1 in the sealing air bag, and stopping inflating when the pressure p1 reaches preset pressure p 2; and acquiring door body closing information, and continuously inflating the sealed air bag after the door body is closed until the pressure p1 in the sealed air bag reaches the sealing pressure p3.
As a further improvement of the invention, the critical pressure of the sealed air bag in the expansion deformation and the non-deformation is p4, and p4 is multiplied by 80% < p2 < p4.
As a further improvement of the present invention, the fast inflation mode further comprises: and after the door body is opened, inflating a sealing airbag between the refrigerator body and the door body, acquiring the opening time t1 of the door body, comparing p1 with p2 when the opening time t1 reaches the preset time t0, and continuing inflating until p2 is reached when p1 is less than p2.
As a further improvement of the invention, the common inflation mode comprises: and acquiring door opening information, controlling the sealed air bag to exhaust completely, acquiring door closing information when the door is closed, and inflating the sealed air bag to enable p1 to rise from 0 to sealing pressure p3.
As a further improvement of the invention, the critical pressure when the sealed air bag just generates acting force on the door body or the box body after being inflated is p5, and p5 is more than p3 and more than p5 multiplied by 120 percent.
As a further improvement of the invention, the refrigerator comprises a refrigerator body with an inner container, and a door body matched with the refrigerator body, wherein the door body is provided with a door liner, a storage space is formed between the door liner and the inner container, the door liner is provided with a door liner plate and a liner frame which protrudes backwards from the door liner plate to the inner side of the inner container, the sealing air bag is arranged between the inner container and the liner frame to seal the storage space, the refrigerator also comprises a fixing piece for fixing the sealing air bag, and an air pump matched with the sealing air bag, the fixing piece is provided with a deformation part which covers the outer side of the sealing air bag and is elastically deformed along with the inflation and deflation of the sealing air bag, and a fixing part which is connected with the deformation part to be fixed on the inner container or the liner frame.
As a further improvement of the present invention, the sealing airbag is fixed on the inner container, a groove and a fixing structure are formed on the inner container at a position adjacent to the lining frame, the sealing airbag is accommodated in the groove, and the fixing member is fixed outside the sealing airbag by the cooperation of the fixing portion and the fixing structure.
As a further improvement of the invention, the liner is provided with an inner wall adjacent to the lining frame, and the outer wall of the fixing piece adjacent to the lining frame is flush with the inner wall of the liner in the door opening state.
As a further improvement of the invention, the inner container is provided with an inner container body and a connecting piece fixed at the front end of the inner container body, and the groove and the fixing structure are formed on the connecting piece.
As a further improvement of the invention, the lining frame is provided with a matching wall matched with the sealing air bag, and the matching wall is concavely provided with a sealing groove matched with the sealing air bag.
The invention has the beneficial effects that: according to the control method of the refrigerator, after the door body is opened, the air bag is inflated to the preset pressure in advance, after the door body is closed, the air bag is inflated continuously, the air bag is inflated from the preset pressure to the sealing pressure, and the air bag inflation time is greatly shortened. The heat exchange between the storage space and the surrounding environment is reduced, the sealing speed is improved, and the heat preservation effect is further enhanced.
Drawings
Fig. 1 is a flowchart of a control method of a refrigerator according to the present invention.
Fig. 2 is a perspective view of the refrigerator of the present invention.
Fig. 3 is a side exploded view of the refrigerator of the present invention.
Fig. 4 is an exploded perspective view of the refrigerator of the present invention.
Fig. 5 is a sectional view of the air bag for the refrigerator of the present invention.
Fig. 6 is an exploded sectional view of the fixing member and the inner container.
Fig. 7 is a sectional view of another embodiment of the air bag for a refrigerator of the present invention.
Fig. 8 is a cross-sectional view of the balloon of fig. 7 after inflation.
Fig. 9 is a sectional view of a second embodiment of a refrigerator door liner of the present invention.
Fig. 10 is a cross-sectional view of the balloon of fig. 9 after inflation.
Fig. 11 is a sectional view of a third embodiment of a refrigerator door liner of the present invention.
Fig. 12 is a sectional view of a fourth embodiment of a refrigerator door liner of the present invention.
Fig. 13 is a sectional view of a fifth embodiment of a refrigerator door liner of the present invention.
Fig. 14 is a sectional view of the inside of an evaporation chamber of a refrigerator according to the present invention.
Fig. 15 is an enlarged view at a in fig. 14.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiment, and structural, methodological, or functional changes made by one of ordinary skill in the art according to the embodiment are included in the scope of the present invention.
Fig. 1 shows a control method of a refrigerator according to the present invention, specifically, the refrigerator has a normal air charging mode and a fast air charging mode, and the control method includes:
acquiring the ambient temperature T of the refrigerator, comparing the ambient temperature T with a preset temperature T0, starting a rapid inflation mode when the ambient temperature T is more than or equal to the preset temperature T0, and otherwise, starting a common inflation mode;
the rapid inflation mode specifically includes: the method comprises the steps that opening information of a door body 2 is obtained, a sealed air bag 3 between a refrigerator body 1 and the door body 2 is inflated after the door body 2 is opened, meanwhile, pressure p1 in the sealed air bag 3 is obtained, and when the pressure p1 reaches preset pressure p2, inflation is stopped;
and acquiring closing information of the door body 2, and continuously inflating the sealed air bag 3 after the door body 2 is closed until the pressure p1 in the sealed air bag 3 reaches the sealing pressure p3.
The rapid inflation mode is mainly characterized in that after the door body 2 is opened, the sealing airbag 3 is pre-filled with a certain amount of gas, so that after the door body 2 is closed, the inflation time from the inflation of the sealing airbag 3 to the sealing pressure p3 is shortened, the sealing airbag 3 enters a sealing state in advance, the heat exchange of the storage space 12 is reduced, and the sealing effect is improved.
Generally, a detection device is arranged at the handle position of the refrigerator, when a user touches the handle, the detection device detects the action and feeds the action back to the control unit, and the control unit controls the sealed air bag 3 to exhaust air after acquiring the information, so that the door body 2 is convenient to open.
The fast inflation mode can have two working modes, the first mode is: the sealed air bag 3 is completely exhausted and is re-inflated to p2, and the second method is as follows: and controlling the exhaust of the sealed air bag 3, detecting the pressure in real time, and controlling the exhaust valve to close when the pressure is detected to be reduced to p2.
In the second operation mode, because the exhaust speed of the sealed air bag 3 is high, and the sensitivity limit of the detection instrument and the exhaust valve is added, it is difficult to accurately control the exhaust to p2, which is usually lower than p2, and therefore, the sealed air bag 3 still needs to be re-inflated to p2.
Therefore, in the first working mode, the pressure sensor does not need to detect in the exhaust process, and repeated opening of the exhaust valve is avoided.
And when the door body 2 is closed last time, the air pump 5 sucks air from the evaporation chamber 15 for filling, therefore, a certain time interval is provided from the last closing of the door body 2 to the opening of the door body 2, the temperature of the air in the sealed air bag 3 is also increased inevitably, so that the air in the sealed air bag 3 is exhausted first, and the new low-temperature low-humidity air is filled, which is beneficial to reducing heat exchange and improving the sealing effect.
Firstly, by judging the size of the ambient temperature T and the preset temperature T0 of the refrigerator, when the T is larger than or equal to the T0, the ambient temperature T of the refrigerator is high, the working condition is relatively severe, and therefore, the rapid inflation mode is started, otherwise, the ambient temperature T of the refrigerator is low, the working condition is relatively good, and the common inflation mode is started.
Assuming that the critical pressure of the sealing airbag 3 is p4 when the sealing airbag is in the expansion deformation and the non-deformation, after the sealing airbag 3 is completely deflated, the sealing airbag 3 is in the folded state, and is inflated from the folded state to the non-folded state, at this time, if the sealing airbag 3 is continuously inflated, the material of the sealing airbag 3 is elastically deformed due to the expansion, and p4 is the critical pressure of the material of the sealing airbag 3 when the material is elastically deformed and the non-elastic deformation.
Wherein p4 x 80% < p2 < p4, and the preset pressure p2 is set to a certain range, so that the situation that the air pump 5 repeatedly inflates when the preset pressure p2 is set to a fixed value and the pressure in the sealed air bag 3 is lower than p2 is detected can be avoided, thereby reducing the working times of the air pump 5 and prolonging the service life.
The fast inflation mode further comprises: the method comprises the steps of inflating a sealing airbag 3 between a refrigerator body 1 and a door body 2 after the door body 2 is opened, firstly obtaining the opening time t1 of the door body 2, comparing p1 with p2 when the opening time t1 reaches the preset time t0, and continuing inflating until p2 is reached when p1 is smaller than p2. This is because a certain time is required for inflating the airtight bag 3 to p2, and p2 cannot be reached at the initial stage of inflation, and therefore, it is not necessary to detect the pressure p1 in the airtight bag 3 at the initial stage, thereby reducing the operating frequency of the pressure sensor.
Assuming that the critical pressure at which the sealing airbag 3 just exerts a force on the door 2 or the chest 1 after being inflated is p5, p5 < p3 < p5 × 120%, because it is necessary to make the sealing airbag 3 seal the door 2 or the chest 1 better, p3 is usually slightly larger than p5, and p3 must not exceed a certain value in order to avoid the door 2 or the chest 1 from being damaged due to the overexpansion of the sealing airbag 3.
The normal inflation mode includes: and acquiring opening information of the door body 2, controlling the sealed air bag 3 to exhaust completely, acquiring closing information of the door body 2 when the door body 2 is closed, and inflating the sealed air bag 3 to enable the pressure p1 to rise from 0 to the sealing pressure p3.
Therefore, the normal inflation mode is increased from 0 to p3, and the quick inflation mode is increased from p2 to p3, so that the inflation time of the quick inflation mode is shorter than that of the normal inflation mode obviously after the door body 2 is closed.
The invention also provides a refrigerator, which comprises a refrigerator body 1 with an inner container 11, a door body 2 matched with the refrigerator body 1, wherein the door body 2 is provided with a door liner 21, a storage space 12 is formed between the door liner 21 and the inner container 11, the door liner 21 is provided with a door liner plate 211 and a liner frame 212 which protrudes backwards from the door liner plate 211 to the inner side of the inner container 11, the refrigerator also comprises an air bag 3 which is arranged between the inner container 11 and the liner frame 212 to seal the storage space 12, a fixing piece 4 for fixing the air bag 3 and an air pump 5 matched with the air bag 3, the fixing piece 4 is provided with a deformation part 41 which covers the outer side of the air bag 3 and is elastically deformed along with the inflation and deflation of the air bag 3, and a fixing part 42 which is connected with the deformation part 41 to be fixed on the inner container 11 or the liner frame 212.
Specifically, as shown in fig. 2 to 6, in the present embodiment, the door opening side of the refrigerator is described as being located on the left side, but in other embodiments, the door opening side may be located on the right side. As shown in fig. 1, the door body 2 is not shown with a door shell, and only the door liner 21 is shown. The lining frame 212 protrudes backwards from the periphery of the door lining plate 211, and the airbag 3 is mainly used for sealing the inner wall 115 of the liner 11 and the lining frame 212, so that the sealing effect is further enhanced. Of course, the airbag 3 may be disposed in a ring shape in cooperation with the inner wall 115 and the cushion frame 212, or may be disposed only at a partial position between the inner wall 115 and the cushion frame 212.
In this embodiment, the lining frame 212 has a fixing wall 213 located on the inner side and a fitting wall 214 located on the outer side, the fixing wall 213 is mainly used for arranging a bottle seat, the airbag 3 is located between the fitting wall 214 and the inner wall 115 of the inner container 11 to seal the storage space 12, and the door body 2 further has a sealing portion 22 extending from the front side of the fitting wall 214 in the lateral direction.
In this embodiment, the case 1 further has a frame opening 13 located at the front side thereof, the sealing portion 22 is provided with a door seal 23 capable of being attached to the frame opening 13, the door seal 23 not only can seal the storage space 12, but also can fix the door 2 and the case 1, and the airbag 3 is combined to seal the inner wall 115 of the inner container 11 and the lining frame 212, i.e., the only contact surfaces (the sealing portion 22 and the matching wall 214) of the door 2 and the case 1 are sealed, so that the sealing effect can be further improved, and the influence of the external environment on the temperature in the storage space 12 can be reduced.
The door gasket 23 includes a fixing leg 231 fixed to the sealing portion 22, and a sealing body 232 extending backward from the fixing leg 231, wherein the sealing body 232 has a main air chamber and an auxiliary air chamber disposed adjacently, and a magnetic element is disposed in the main air chamber or the auxiliary air chamber to be attracted and matched with the magnetic element on the frame opening portion 13, so as to maintain the closed state of the door body 2.
Because the outer shell 14 of the box body 1 is made of metal material, and the front side of the outer shell 14 is provided with a bent edge, the bent edge is a magnetic element, and therefore, the magnetic element can be directly adsorbed on the bent edge. Certainly, in order to reduce the production cost and reduce heat exchange, a magnetic element is not arranged in the main air chamber or the auxiliary air chamber, and a further deformation space of the door seal is provided by the air chamber provided with the magnetic element, so that the sealing effect is improved. (this structure can be realized by matching with the structure of the lining frame 212 or the structure of the liner 11, see the following embodiments for details)
In this embodiment, the airbag 3 is fixed on the inner container 11, specifically, on the inner side wall of the inner container 11 adjacent to the lining frame 212, a groove 111 and a fixing structure 112 are formed at a position on the inner container 11 adjacent to the matching wall 214, the airbag 3 is accommodated in the groove 111, and the fixing member 4 is fixed outside the airbag 3 by matching the fixing structure 112 with the fixing portion 42. Of course, in other embodiments, the lining frame 212 may also be provided with a groove 111 and a fixing structure 112 for accommodating the airbag 3.
Specifically, in this embodiment, the liner 11 has a liner body 113 and a connecting member 114 fixed at the front end of the liner body 113, the groove 111 and the fixing structure 112 are formed on the connecting member 114, and since the liner 11 is usually formed by vacuum forming, it is not easy to set the fixing structure 112 on the surface thereof, and therefore, by setting the connecting member 114 at the front end of the liner body 113, the groove 111 and the fixing structure 112 are conveniently set on the connecting member 114, thereby facilitating the assembly of the fixing member 4.
The connecting member 114 is generally a plastic member and is disposed around the front end of the inner container body 113, in this embodiment, the fixing structures 112 are disposed on the front and rear sides of the groove 111, and each fixing structure 112 has a slot 1121 recessed from the surface of the connecting member 114 and a limiting slot 1122 disposed on one side of the slot 1121.
The connecting member 114 further has a liner fixing end 1141 connected to the rear fixing structure 112 to be fixed to the liner body 113, and a case fixing end 1142 connected to the front fixing structure 112 to be fixed to the metal case 14 of the case 1, wherein the liner fixing end 1141 extends rearward, and the case fixing end 1142 extends outward along the transverse direction, so that the connecting member 114, the liner body 113 and the case 14 together form a foaming chamber. In this embodiment, the connecting member 114 can bond the inner container fixing end 1141 to the inner container body 113 through an adhesive, and the outer container fixing end 1142 is fixed by matching with the U-shaped groove of the outer container 14, but in other embodiments, the connecting member 114 can also be provided with a matching structure fixed with the inner container body 113.
In this embodiment, the fixed part 42 of mounting 4 set up respectively in both sides around the department of deformation 41, so that with recess 111 and fixed knot construct 112 cooperate, wherein, the department of deformation 41 with the fixed part 42 is the plastic of different materials respectively and forms through soft or hard crowded technology altogether, and the department of deformation 41 adopts the material that extremely easily warp promptly, and fixed part 42 adopts non-deformable's material, through soft or hard crowded common shaping that realizes different materials altogether, has improved the production efficiency of mounting 4. Of course, in other embodiments, the deformation portion 41 may be formed separately and assembled with the fixing portion 42 to form the fixing member 4.
In the present embodiment, the elastic modulus of the deformation portion 41 is smaller than that of the airbag 3, and the larger the elastic modulus, i.e., the larger the rigidity, i.e., the less likely to deform, so that the deformation portion 41 is more likely to deform relative to the airbag 3, i.e., the deformation portion 41 deforms immediately as long as the airbag 3 exerts a force on the deformation portion 41, on one hand, the inflation amount of the airbag 3 is easily controlled, and on the other hand, damage to the airbag 3 due to over inflation of the airbag 3 can be avoided. Moreover, the deformation portion 41 is made of a wear-resistant material, so that the deformation portion 41 is not easily damaged by friction with the lining frame 212 even in a long-term use process.
The fixing portion 42 has a hook 421 and a limiting portion 422, which are engaged with the slot 1121 and the limiting slot 1122 of the fixing structure 112, wherein the hook 421 and the slot 1121 are engaged to realize the positioning in the transverse direction. The limiting portion 422 is engaged with the limiting groove 1122, so that the fixing effect of the hook 421 and the engaging groove 1121 can be further enhanced.
On the other hand, during the long-term use of the refrigerator, the risk of damage to the hook 421 caused by the fixed portion 42 being pulled by the deformation portion 41 being deformed frequently is reduced, and meanwhile, the installation is facilitated. Therefore, by arranging the fixing member 4, the airbag 3 does not need to be additionally provided with the fixing structure 112, the airbag 3 only needs to be placed in the groove 111, and then the fixing member 4 is installed, so that the installation is simple and efficient.
The inner bag 11 has an inner wall 115 adjacent to the lining frame 212, and in the door-open state, the outer wall (i.e., the deformation portion 41) of the fixing member 4 adjacent to the lining frame 212 is flush with the inner wall 115 of the inner bag 11, that is, the airbag 3 is not inflated and the deformation portion 41 is in an undeformed state. At this time, the door 2 can be opened and closed smoothly without interference of the deformation portion 41.
In this embodiment, the lining frame 212 protrudes backward from the periphery of the door lining board 211, i.e. the lining frame is disposed around the inner wall 115 of the inner container 11, and the airbag 3 is also disposed in a ring shape corresponding to the connecting member 114 and the lining frame 212; the annular air bag 3 can be arranged in a multi-section structure (not shown), two adjacent sections are communicated with each other through air holes, and the inner diameter of each air hole is smaller than that of each air bag 3. Each section of the air bag 3 is communicated through the air holes, so that the air convection in the air bag 3 can be effectively reduced, the heat exchange efficiency is obviously reduced, and the temperature influence on the storage space 12 is reduced.
In this embodiment, the matching wall 214 extends obliquely from back to front and towards the inner wall 115 of the inner container 11, which is for facilitating the door liner 21 to be demolded from the plastic sucking male mold, but in other embodiments, the matching wall 214 may also extend in a direction perpendicular to the door liner 211, and in order to further enhance the sealing effect of the airbag 3, the matching wall 214 is further provided with a sealing groove 24 matching with the airbag 3 in a concave manner. By arranging the sealing groove 24, the sealing area of the air bag 3 is increased, on one hand, the sealing effect is increased, on the other hand, the friction force between the air bag 3 and the matching wall 214 can also be increased, the forward component force generated by extruding and matching the matching wall 214 by the air bag 3 is reduced, and the door body 2 is prevented from being opened.
Specifically, the fitting wall 214 has at least two groove walls forming the sealing groove 24, and the more the groove walls forming the sealing groove 24 are, the larger the sealing area with the airbag 3 is, the better the sealing effect is, and the larger the friction force is, the less the door 2 is opened. In the present embodiment, the sealing groove 24 is disposed around the matching wall 214, so as to match with the annular bladder 3 to increase the sealing effect. Of course, in other embodiments, the sealing groove 24 may also be disposed at a local position of the matching wall 214, such as some places where cold leakage is easy, for example, a position near the opening side of the door body 2.
As shown in fig. 5, in the first embodiment of the door liner 21 of the refrigerator according to the present invention, the matching wall 214 has a first groove wall 241 and a second groove wall 242 which form the sealing groove 24 and are connected in a front-to-back manner, the first groove wall 241 is located at the rear side of the second groove wall 242, the first groove wall 241 is formed by extending from the matching wall 214 vertically toward the door liner 211, and the second groove wall 242 is formed by extending from the end of the first groove wall 241 toward the inner wall 115 of the inner container 11 adjacent to the matching wall 214 in an inclined manner.
Therefore, neither the first groove wall 241 nor the second groove wall 242 extends obliquely forward away from the inner wall 115 of the inner container 11 adjacent to the matching wall 214, and the door lining 21 is generally formed mainly by plastic suction, and a plastic suction male mold is adopted, so that when the door lining 21 is moved upward for demolding, no other external force is used for preventing the upward movement except for the friction force between the door lining 21 and the surface of the male mold during the upward movement, and the demolding is smoother, and meanwhile, the sealing effect is increased.
When the airbag 3 is inflated, it may contact both the first groove wall 241 and the second groove wall 242, or may contact only one of them, wherein it is preferable that the airbag 3 contacts only the first groove wall 241 because the first groove wall 241 is formed to extend vertically toward the door liner 211, and the acting force of the airbag 3 on the first groove wall 241 has no forward component, so that the door opening force is not generated.
As shown in fig. 9 and 10, in the second embodiment of the door liner 21 of the refrigerator according to the present invention, the fitting wall 214 has a first groove wall 241 and a second groove wall 242 which form the sealing groove 24 and are connected in a front-to-rear direction, the first groove wall 241 is formed by extending obliquely forward from the fitting wall 214 in a direction away from the inner wall 115 of the inner container 11 adjacent to the fitting wall 214, that is, toward the door liner 211, and the second groove wall 242 is formed by extending obliquely forward from the end of the first groove wall 241 in a direction toward the inner wall 115 of the inner container 11 adjacent to the fitting wall 214.
Specifically, in this embodiment, an acute angle between the first groove wall 241 and a horizontal line along the front-back direction is greater than an acute angle between the second groove wall 242 and a horizontal line along the front-back direction. Since the bladder 3 is in contact with both the first and second groove walls 241, 242 when the bladder 3 is sealed.
Therefore, on one hand, the acute included angle between the first groove wall 241 and the horizontal line along the front-back direction is relatively large, and the acting force of the airbag 3 on the first groove wall 241 is relatively large in the backward component, so that the door closing force can be formed to a certain extent, and the door body 2 is prevented from being opened. On the other hand, the acute angle included angle between the second groove wall 242 and the horizontal line along the front-back direction is smaller, the forward component force of the airbag 3 on the second groove wall 242 is smaller, the door opening force can be reduced to a certain extent, and the door body 2 can be prevented from being opened under the action of the airbag 3 by matching with the fixing action of the door seal 23.
Further, the length of the first groove wall 241 is smaller than that of the second groove wall 242, and when the door liner 21 is demolded, since the first groove wall 241 is formed to extend obliquely forward from the mating wall 214 in a direction away from the inner wall 115 of the inner container 11 adjacent to the mating wall 214, assuming that an included angle between the first groove wall 241 and a horizontal line in the transverse direction is a and the length of the first groove wall 241 is a, the first groove wall 241 must move a distance of a × cosA in the transverse direction to smoothly demold the door liner 21, and the smaller the length a of the first groove wall 241, the smaller the value of a × cosA, and the easier demold is.
In order to solve the problem that the air bag 3 generates the door opening force to the door liner 21 and further enable the air bag 3 to generate the door closing force to the door liner 21, the invention also provides a design which is a third embodiment of the door liner 21 of the refrigerator according to the invention as shown in fig. 10.
The airbag 3 is matched with the lining frame 212 to form an annular arrangement, the airbag 3 is fixedly arranged on one of the liner 11 and the lining frame 212, a limiting wall matched with the airbag 3 in a closed state of the door body 2 is formed on the other one of the liner 11 and the lining frame 212, the limiting wall extends from outside to inside in the transverse direction (namely, the limiting wall extends forwards in an inclined manner towards the direction far away from the inner wall 115 of the liner 11 adjacent to the matching wall 214), and the limiting wall is simultaneously arranged in an inclined manner from back to front. For convenience of description, the limiting wall is hereinafter referred to as a first groove wall 241.
In the present embodiment, the airbag 3 is fixed to the inner wall 115 of the inner bag 11 (see the above-mentioned portion in detail), the first groove wall 241 is formed on the mating wall 214, specifically, the first groove wall 241 may be the mating wall 214, or may be a partial structure on the mating wall 214, and when the first groove wall 241 is the mating wall 214, the sealing portion 22 is formed to extend in the lateral direction from the front side of the first groove wall 241.
When the airbag 3 is inflated, the acting force of the airbag 3 on the first groove wall 241 has a backward component force, which can fix the door body 2 to the box body 1, i.e. a door closing force. When the included angle between the first groove wall 241 and the horizontal line along the front-back direction is larger, the door closing force is larger, the fixing effect of the door body 2 is better, and the demolding is difficult. And when the first groove wall 241 is the mating wall 214, i.e. there is no need to provide the remaining structure on the mating wall 214, it is also relatively simple when designing the male mold.
Of course, in other embodiments, the airbag 3 is fixed to the lining frame 212, and the first groove wall 241 is formed on the inner wall 115 of the inner container 11, and when the airbag 3 inflates, the first groove wall 241 can prevent the airbag 3 from moving forward, so as to prevent the door 2 from opening.
As shown in fig. 12, there is a fourth embodiment of a door liner 21 of a refrigerator according to the present invention.
The matching wall 214 is formed with a sealing groove 24 matching with the airbag 3, and the matching wall 214 has at least two groove walls forming the sealing groove 24, wherein at least one groove wall is the limiting wall. When the air bag 3 is inflated and expanded, the air bag and the limit wall are matched to seal the storage space 12. This is because the direction of the force generated by the airbag 3 on the position-limiting wall is perpendicular to the contact surface of the groove wall, so that the force has a backward component, and finally the door body 2 is closed more firmly, that is, a door closing force is generated.
In this embodiment, the matching wall 214 has a limiting wall (i.e., a first groove wall 241) and a connecting wall (i.e., a second groove wall 242) that form the sealing groove 24 and are connected in the front-back direction, the limiting wall is a rear inner wall of the sealing groove 24, and the connecting wall is a front inner wall of the sealing groove 24.
The second groove wall 242 extends obliquely forward from the end of the first groove wall 241 toward the inner wall 115 of the inner container 11 adjacent to the matching wall 214, in this embodiment, the airbag 3 is only matched with the first groove wall 241 to seal the storage space 12 after being inflated, this is because only the door closing force can be generated when the airbag 3 is only contacted with the first groove wall 241, and in other embodiments, the airbag 3 can also be contacted with the second groove wall 242, and only the forward component force (i.e. the door opening force) of the acting force of the airbag 3 on the second groove wall 242 needs to be ensured to be smaller than the door closing force.
The position of the sealing groove 24 may be formed at the middle position of the matching wall 214, or may be formed at the rear end of the matching wall 214, that is, the matching wall 214 is formed by extending from the front end of the second groove wall 242. The former matching wall 214 surface has four bending edges from back to front, which specifically comprises: front mating wall 214, first slot wall 241, second slot wall 242, and rear mating wall 214. The mating wall 214 surface of the latter has three bending edges from back to front, specifically: a first slot wall 241, a second slot wall 242, and a mating wall 214. The shapes of the plastic suction convex dies corresponding to different bending edges are different, and the plastic suction convex dies can be selected according to actual production.
In this embodiment, the length of the first groove wall 241 is greater than that of the second groove wall 242, and the first groove wall 241 is set long enough to ensure that the airbag 3 is only in contact with the first groove wall 241 after being inflated and is sealed, but not in contact with the second groove wall 242, so that an acting force is not given to the second groove wall 242, and a forward opening force is not generated, and therefore, only a closing force is generated, and the door 2 is ensured to be closed more firmly.
An acute angle between the first groove wall 241 and a horizontal line along the front-rear direction is smaller than an acute angle between the second groove wall 242 and a horizontal line along the front-rear direction. The included angle between the first groove wall 241 and the horizontal line in the front-back direction is smaller as much as possible, and the included angle is more parallel to the horizontal line in the front-back direction, so that the resistance is smaller in the demolding process, the demolding is easier, and the production efficiency is improved.
Stated differently, the included angle between the first groove wall 241 and the horizontal line in the transverse direction is larger, and similarly, assuming that the included angle between the first groove wall 241 and the horizontal line in the transverse direction is a, and the length of the first groove wall 241 is a, the first groove wall 241 must move a distance a × cosA in the transverse direction to smoothly demold the door lining 21, and the larger the value of the included angle a, the smaller the value of a × cosA, and the easier the demold of the door lining 21.
In order to further reinforce the airbag 3, a door closing force can be generated on the door liner 21, as shown in fig. 13, which is a fifth embodiment of the door liner 21 of the refrigerator according to the present invention.
The matching wall 214 has a limiting wall and a connecting wall which form the sealing groove 24 and are connected in a front-back manner, (for convenience of description, the limiting wall and the connecting wall are also referred to as a first groove wall 241 and a second groove wall 242), the first groove wall 241 is formed by extending the matching wall 214 obliquely and forwards in a direction away from the inner wall 115 of the inner container 11 adjacent to the matching wall 214, the second groove wall 242 is formed by extending the tail end of the first groove wall 241 obliquely and forwards in a direction away from the inner wall 115 of the inner container 11 adjacent to the matching wall 214, and the air bag 3 is inflated to match the first groove wall 241 and the second groove wall 242 to seal the storage space 12.
In this embodiment, the sealing groove 24 is formed by being recessed from the middle of the matching wall 214, and the matching wall 214 extends from the back to the front and slantingly toward the inner wall 115 of the inner container 11, therefore, the matching wall 214 further has a front wall forming the sealing groove 24, the front wall is connected to the front end of the second groove wall 242, for convenience of description, the front wall is referred to as a third groove wall 243, and the third groove wall 243 is formed by extending from the end of the second groove wall 242 to the front and slantingly toward the inner wall 115 of the inner container 11 adjacent to the matching wall 214 and connected to the matching wall 214 at the front end.
In the present embodiment, when the airbag 3 inflates, it only contacts the first groove wall 241 and the second groove wall 242, but not the third groove wall 243, and the third groove wall 243 is mainly used to connect the front mating wall 214, so that the door opening force is not generated, but only the door closing force is generated, and the door body 2 is ensured to be closed more firmly. Of course, in other embodiments, the airbag 3 may contact the third groove wall 243 after being inflated, and it is only necessary to ensure that the forward component of the acting force (i.e., the door opening force) of the airbag 3 on the third groove wall 243 is smaller than the door closing force generated by the first groove wall 241 and the second groove wall 242.
In this embodiment, an acute angle between the first groove wall 241 and a horizontal line along the front-rear direction is greater than an acute angle between the second groove wall 242 and a horizontal line along the front-rear direction.
Since the airbag 3 contacts both the first groove wall 241 and the second groove wall 242 when the airbag 3 is sealed, on one hand, the acute angle included angle between the first groove wall 241 and the horizontal line along the front-back direction is large, the component force of the airbag 3 on the first groove wall 241 in the backward direction is large, and the door body 2 can be prevented from being opened to a certain extent, and it can also be understood that the larger the angle of the first groove wall 241 is, the better the clamping effect on the airbag 3 is.
On the other hand, the acute angle between the second groove wall 242 and the horizontal line along the front-rear direction is smaller, which facilitates the longer arrangement of the second groove wall 242, thereby increasing the contact area with the airbag 3, and at the same time, because the included angle is smaller, the clamping force between the second groove wall 242 and the punch is smaller during demolding, thereby facilitating the demolding. Therefore, in principle, it is only necessary to ensure that the second groove wall 242 has an included angle with the horizontal line along the front-back direction, and the smaller the included angle, the better the included angle is, the more easily the demolding is ensured to be realized.
And the length of the first groove wall 241 is smaller than that of the second groove wall 242, on one hand, because the acute angle included angle between the first groove wall 241 and the horizontal line along the front-back direction is larger, and the first groove wall 241 is shorter, the area of the male die clamped by the first groove wall 241 is smaller during demoulding, which is more beneficial to demoulding. On the other hand, the second groove wall 242 is longer, so that the airbag 3 is mainly matched and sealed with the second groove wall 242 after being expanded, and the first groove wall 241 assists in clamping the airbag 3.
In the third to fifth embodiments of the door liner 21 of the refrigerator according to the present invention, the door liner itself can generate a closing force, that is, an additional fixing device is not required to fix the door body 2 and the refrigerator body 1, so that a magnetic element is not required to be disposed in the door seal 23, and since a magnetic element is not disposed, on one hand, the cost is reduced, and on the other hand, the thermal conductivity of air is lower than that of a magnetic element, the heat exchange efficiency is lower, and the heat exchange of air in the storage space 12 is not easily performed, so that the temperature in the storage space 12 is increased slowly, thereby improving the heat preservation and sealing effects.
As shown in fig. 7 and 8, the air bag 3 of the refrigerator according to another embodiment of the present invention includes an inner air bag 31, an outer air bag 32 disposed outside the inner air bag 31, and a fixing portion 42 fixed to the inner container 11.
In the present embodiment, the outer bag 32 may be integrally formed with the fixing portion 42, but may be assembled. The outer airbag 32 further has an installation opening for installing the inner airbag 31 therein, the inner bag 11 is concavely provided with a groove 111 for accommodating the airbag 3, the bottom of the groove 111 is further concavely provided with a fixing groove matched with the fixing portion 42, in this embodiment, the fixing portion 42 is triangular, but may have other shapes. When the air bag 3 is installed, the inner container 11 is made of plastic materials, so that the elasticity is good, the fixing part 42 can be directly installed on the fixing groove by overcoming the elastic force of the inner container 11, and the inner container 11 is not needed to be damaged.
When the airbag 3 is not inflated, the airbag 3 contracts into the groove 111 and is semicircular, so that the door body 2 can be opened and closed smoothly, and the surface area of the inner airbag 31 is larger than that of the outer airbag 32, that is, the inner airbag 31 is arranged in the outer airbag 32 in a multi-layer fold shape.
In the door-open state, the outer wall of the outer airbag 32 adjacent to the liner frame 212 is flush with the inner wall 115 of the inner bag 11, that is, the inner airbag 31 is not inflated and the outer airbag 32 is in an undeformed state. At this time, the door 2 can be opened and closed smoothly without interference from the outer bag 32.
In the present embodiment, the elastic modulus of the outer airbag 32 is smaller than that of the inner airbag 31, and the larger the elastic modulus, i.e., the higher the rigidity, i.e., the less likely to deform, so that the outer airbag 32 is more likely to deform with respect to the inner airbag 31, i.e., the outer airbag 32 is deformed immediately as long as the inner airbag 31 exerts a force on the outer airbag 32.
On the one hand, it is easy to control the amount of inflation of the inner bag 31, and on the other hand, it is possible to prevent damage to the inner bag 31 by over-inflating the inner bag 31. In addition, the outer bag 32 is made of a wear-resistant material, so that the outer bag 32 is less likely to be damaged by friction with the lining frame 212 even in a long-term use.
In this embodiment, the matching wall 214 extends obliquely from back to front and toward the inner wall 115 of the inner container 11, which is to facilitate the door liner 21 to be demolded from the plastic male mold, but in other embodiments, the matching wall 214 may also extend in a direction perpendicular to the door liner 211, and in order to further enhance the sealing effect of the airbag 3, the matching wall 214 is further recessed with a sealing groove 24 matching with the airbag 3. By arranging the sealing groove 24, the sealing area of the air bag 3 is increased, on one hand, the sealing effect is increased, on the other hand, the friction force between the air bag 3 and the matching wall 214 can also be increased, the forward component force generated by extruding and matching the matching wall 214 by the air bag 3 is reduced, and the door body 2 is prevented from being opened.
Specifically, the fitting wall 214 has at least two groove walls forming the sealing groove 24, and the more the groove walls forming the sealing groove 24 are, the larger the sealing area with the airbag 3 is, the better the sealing effect is, and the larger the friction force is, the less the door 2 is opened.
As shown in fig. 14 and 15, in order to further improve the sealing effect and reduce the heat exchange efficiency, the air pump 5 of the refrigerator according to the present invention fills the air bag 3 by sucking relatively cool air from the inside of the refrigerator, so that the temperature inside the air bag 3 is less different from the temperature inside the storage space 12, even lower than the temperature inside the storage space 12, thereby reducing heat exchange and maintaining the temperature inside the storage space 12 in a relatively stable state.
Specifically, as shown in fig. 1, the refrigerator includes an evaporation chamber 15 located at the rear side of the storage space 12, an evaporator 16 located in the evaporation chamber 15, an air duct cover plate 17 located between the storage space 12 and the evaporation chamber 15, an air pump 5 matched with the air bag 3, and an air duct 6 connected between an air inlet of the air bag and an inflation port of the air pump, wherein the air pump 5 has an air suction port for sucking air from the evaporation chamber 15 or the storage space 12 to inflate the air bag 3.
In this embodiment, the air pump 5 is disposed in the evaporation chamber 15, and the temperature in the evaporation chamber 15 is lower than the temperature in the storage space 12, so that the air pump 5 sucks air from the evaporation chamber 15 and fills the air bag 3, and the temperature in the air bag 3 is lower than the temperature in the storage space 12, thereby reducing heat exchange and improving sealing effect.
The air duct cover 17 has an air outlet 171 and an air return 172 disposed opposite to each other in front and back or left and right, and in this embodiment, the air outlet 171 and the air return 172 are disposed opposite to each other in left and right. The evaporator 16 is disposed between the air outlet 171 and the air return opening 172, and the air pump 5 is disposed between the air outlet 171 and the evaporator 16, that is, the air pump 5 is disposed in a space surrounded by the air duct cover plate 17 on the air outlet 171 side, the evaporator 16, and the inner container 11.
Therefore, on one hand, the air pump 5 is arranged in the evaporation chamber 15, so that the space of the evaporation chamber 15 can be fully utilized, the space of the storage space 12 is saved, and a hidden design is formed, so that the appearance is attractive. On the other hand, the gas that air pump 5 intakes is the low-temperature low humidity gas after evaporimeter 16 cooling, and when this gas was filled to air pump 5 in, because temperature and humidity all are enough low, consequently, be difficult to appear liquid water to the probability that air duct 6 and air pump 5 freeze has been reduced, in addition air pump 5 is low temperature resistant air pump 5, and to sum up, air pump 5, air duct 6 and gasbag 3 all can work for a long time and be difficult for appearing damaging.
Of course, the air pump 5 and the air duct 6 may be disposed in the storage space 12, and preferably, the air pump 5 is disposed at the rear side of the storage space 12, so that it is not easily seen by the user when the door 2 is opened. The air duct 6 can extend forwards and backwards along the inner wall 115 of the liner 11 to be connected with the air bag inflation inlet, and the air duct 6 is fixed through a fixing clip 9. Or a plastic protective cover with the same color as the inner container 11 is arranged at the outer sides of the air pump 5 and the air duct 6.
The refrigerator further comprises a three-way valve 7 connected between the air guide pipe 6 and the inflation port of the air pump 5, the three-way valve 7 is provided with a first opening 71 connected with the inflation port of the air pump, a second opening 72 connected with the air guide pipe 6 and a third opening 73 used for exhausting air for the air bag 3, an electromagnetic valve is arranged in the third opening 73, when the air bag 3 is inflated, the electromagnetic valve is closed, and when the air bag 3 is exhausted, the electromagnetic valve is opened to exhaust air through the third opening 73.
Inflation and deflation of the air bag 3 are further controlled by setting the three-way valve 7 and controlling the opening and closing of the electromagnetic valve, only an inflation inlet is required to be arranged on the air bag 3, and an exhaust port is not required to be arranged, so that the air bag 3 has a simpler structure, and is convenient to install in the groove 111 of the inner container 11.
On the one hand, realize the hidden design of three-way valve 7, practice thrift the space of storing space 12, on the other hand, during 3 gassing of gasbag, can directly discharge the gas in the gasbag 3 to storing space 12 in, how much gas is in original box 1 promptly, after 3 gassing of gasbag, the gaseous total amount in the box 1 is still unchangeable to avoid producing the negative pressure, guarantee the normal opening of the door body 2.
Of course, in other embodiments, the third opening 73 of the three-way valve 7 may also communicate with the evaporation chamber 15 to discharge the gas in the airbag 3 into the evaporation chamber 15, and since the evaporation chamber 15 and the storage space 12 are generally communicated through the air return opening 172, the generation of negative pressure may also be avoided.
In this embodiment, the refrigerator still has the mount 8 that sets up on inner bag 11 rear side wall, and it is used for fixing air pump 5, consequently, sets up air pump 5 in the rearmost side of inner bag 11, can guarantee that the at utmost keeps away from storing space 12, and the produced vibrations of air pump 5 during operation are also less to storing space 12's influence, in addition for reducing the produced vibrations of air pump 5 and noise, can also inhale sound damping material in the cladding of air pump 5 outside.
The refrigerator still has the through-hole (not shown) that runs through recess 111 diapire in order to communicate the foaming layer, air duct 6 sets up in the foaming layer and passes through 3 air inlets of gasbag are connected to the through-hole, for guaranteeing 3 inflation inlets of gasbag and 6 sealing connection of air duct, the front side of air duct 6 still can set up the air cock, and 3 inflation inlets of gasbag can be together fixed through the interior external screw thread of mutually supporting between with the air cock. Or the air duct 6 is directly connected with the inflation port of the air bag 3, and a separate sealing member is arranged on the outer side to prevent air leakage of the air bag 3.
The other end of the air duct 6 is connected to the three-way valve 7 in the evaporation chamber 15, and the structure of the air duct 6 and the inflation inlet of the air bag 3 can be referred to for ensuring the sealing arrangement between the air duct 6 and the three-way valve 7. In this embodiment, in order to prevent the air duct 6 from being bent and smoothly inflate the airbag 3, the refrigerator further includes a plurality of fixing clips 9 disposed at intervals in the front-rear direction to fix the air duct 6, but in other embodiments, an embedded part extending in the front-rear direction may be disposed on the foaming layer to facilitate installation of the air duct 6, and the air duct 6 is not easily bent.
In conclusion, the air pump 5, the air duct 6 and the three-way valve 7 of the present embodiment are all of a hidden design, so that the overall aesthetic degree is improved, and the volume ratio of the storage space 12 is also improved.
In conclusion, according to the control method of the refrigerator, after the door body is opened, the air bag 3 is inflated to the preset pressure in advance, and after the door body 2 is closed, the air bag 3 is continuously inflated from the preset pressure to the sealing pressure, so that the inflating time of the air bag 3 is greatly shortened. The heat exchange between the storage space 12 and the surrounding environment is reduced, the sealing speed is improved, and the heat preservation effect is further enhanced.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. A control method of a refrigerator is characterized in that: the refrigerator has a normal air-filling mode and a quick air-filling mode, and the control method comprises the following steps:
acquiring the ambient temperature T of the refrigerator, comparing the ambient temperature T with a preset temperature T0, starting a rapid inflation mode when the T is more than or equal to the T0, and otherwise, starting a common inflation mode;
the rapid inflation mode specifically includes: the method comprises the steps of obtaining door body opening information, inflating a sealing air bag between a refrigerator body and a door body after the door body is opened, obtaining pressure p1 in the sealing air bag, and stopping inflating when the pressure p1 reaches preset pressure p 2;
and acquiring door closing information, and continuously inflating the sealed air bag after the door is closed until the pressure p1 in the sealed air bag reaches the sealing pressure p3.
2. The control method of a refrigerator as claimed in claim 1, wherein: the critical pressure of the sealed air bag in the expansion deformation and the non-deformation is p4, and p4 is multiplied by 80% < p2 < p4.
3. The control method of a refrigerator as claimed in claim 1, wherein: the fast inflation mode further comprises: and after the door body is opened, inflating a sealing airbag between the refrigerator body and the door body, acquiring the opening time t1 of the door body, comparing p1 with p2 when the opening time t1 reaches the preset time t0, and continuing inflating until p2 is reached when p1 is less than p2.
4. The control method of a refrigerator as claimed in claim 1, wherein: the common inflation mode includes: and acquiring door opening information, controlling the sealed air bag to exhaust completely, acquiring door closing information when the door is closed, and inflating the sealed air bag to enable the pressure p1 to rise from 0 to the sealing pressure p3.
5. The control method of a refrigerator as claimed in claim 1, wherein: the critical pressure when the sealing air bag is inflated to just generate acting force on the door body or the box body is p5, and p5 is more than p3 and more than p5 multiplied by 120 percent.
6. The control method of a refrigerator as claimed in claim 1, wherein: the refrigerator is including the box that has the inner bag, with the box complex door body, the door body has the door lining, form storing space between door lining and the inner bag, the door lining has the door lining board and extends the inboard lining frame of inner bag backward suddenly from the door lining board, sealed gasbag sets up between inner bag and lining frame with sealed storing space, the refrigerator is still including fixed sealed gasbag's mounting, with sealed gasbag matched with air pump, the mounting has covers in the sealed gasbag outside and fills out deformation portion of gassing elastic deformation along with sealed gasbag, links to each other with deformation portion in order to fix to the fixed part on inner bag or the lining frame.
7. The control method of a refrigerator as claimed in claim 6, wherein: the sealing air bag is fixed on the inner container, a groove and a fixing structure are formed in the position, adjacent to the lining frame, of the inner container, the sealing air bag is contained in the groove, and the fixing piece is fixed outside the sealing air bag through the matching of the fixing portion and the fixing structure.
8. The control method of a refrigerator of claim 7, wherein: the liner is provided with an inner wall adjacent to the lining frame, and the outer wall of the fixing piece adjacent to the lining frame is flush with the inner wall of the liner in a door opening state.
9. The control method of a refrigerator as claimed in claim 7, wherein: the inner container is provided with an inner container body and a connecting piece fixed at the front end of the inner container body, and the groove and the fixing structure are formed on the connecting piece.
10. The control method of a refrigerator as claimed in claim 6, wherein: the lining frame is provided with a matching wall matched with the sealing air bag, and the matching wall is concavely provided with a sealing groove matched with the sealing air bag.
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CN113883816B true CN113883816B (en) | 2023-01-20 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09210541A (en) * | 1996-01-31 | 1997-08-12 | Sanyo Electric Co Ltd | Refrigerator |
WO2017045368A1 (en) * | 2015-09-15 | 2017-03-23 | 海信容声(广东)冰箱有限公司 | Refrigerator door seal and refrigerator |
CN106568285A (en) * | 2016-11-01 | 2017-04-19 | 青岛海尔股份有限公司 | Door seal for refrigerator and refrigerator |
CN106642967A (en) * | 2016-11-10 | 2017-05-10 | 青岛海尔股份有限公司 | Control method for refrigerator and refrigerator |
CN209214205U (en) * | 2018-09-21 | 2019-08-06 | 安徽康佳同创电器有限公司 | A kind of inflatable refrigerator door seal structure, refrigerator door and refrigerator |
-
2020
- 2020-07-03 CN CN202010636863.3A patent/CN113883816B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09210541A (en) * | 1996-01-31 | 1997-08-12 | Sanyo Electric Co Ltd | Refrigerator |
WO2017045368A1 (en) * | 2015-09-15 | 2017-03-23 | 海信容声(广东)冰箱有限公司 | Refrigerator door seal and refrigerator |
CN106568285A (en) * | 2016-11-01 | 2017-04-19 | 青岛海尔股份有限公司 | Door seal for refrigerator and refrigerator |
CN106642967A (en) * | 2016-11-10 | 2017-05-10 | 青岛海尔股份有限公司 | Control method for refrigerator and refrigerator |
CN209214205U (en) * | 2018-09-21 | 2019-08-06 | 安徽康佳同创电器有限公司 | A kind of inflatable refrigerator door seal structure, refrigerator door and refrigerator |
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