CN112444093A - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
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- CN112444093A CN112444093A CN201910798182.4A CN201910798182A CN112444093A CN 112444093 A CN112444093 A CN 112444093A CN 201910798182 A CN201910798182 A CN 201910798182A CN 112444093 A CN112444093 A CN 112444093A
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- refrigerator
- sealing layer
- bottom plate
- horizontal section
- section
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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
Abstract
The invention provides a refrigerator, which comprises a refrigerator body, wherein the refrigerator body comprises: a housing; the inner container is internally limited with a storage space, and a foaming space is limited between the inner container and the shell; when the box body is foamed and filled by adopting a polyurethane foaming reaction, the pressure of the foaming space is dynamically changed. The refrigerator comprises a refrigerator body, wherein the refrigerator body comprises a shell and an inner container, a storage space is defined in the inner container, a foaming space is defined between the inner container and the shell, when the refrigerator body is foamed and filled by adopting a polyurethane foaming reaction, the pressure of the foaming space is dynamically changed, the heat preservation performance of the refrigerator is improved, the cost of a foaming material is reduced, the curing time is shortened, the number of surface bubbles is reduced, and the surface crust is improved.
Description
Technical Field
The invention relates to the technical field of cold storage and freezing devices, in particular to a refrigerator.
Background
The foaming of the refrigerator generally refers to the foaming of hard polyurethane, and the foam is arranged between a shell and an inner container of the refrigerator. The performance of the foam and the production process determine the quality of the refrigerator performance. The existing refrigerator adopts constant pressure to foam, and has the problems of poor heat conductivity coefficient of products, higher cost of foaming materials and longer time. In addition, the existing refrigerator has the problems of not-in-place sealing technology and complex sealing operation during foaming.
Disclosure of Invention
The invention aims to provide a refrigerator with high heat insulation performance and low cost of a foaming material.
A further object of the present invention is to enhance and simplify the sealing technique during foaming of the refrigerator.
In particular, the present invention provides a refrigerator including a cabinet including:
a housing; and
the inner container is internally provided with a storage space, and a foaming space is defined between the inner container and the shell; wherein
When the box body is foamed and filled by adopting a polyurethane foaming reaction, the pressure of a foaming space is dynamically changed.
Optionally, the box further comprises:
the bottom plate is positioned below the inner container and is provided with a bottom horizontal section, a bending section and a top horizontal section, wherein the bottom horizontal section is of a non-porous structure, and flanges are formed by upward extending the left side edge, the right side edge and the rear side edge of the bottom plate; and
and the supporting plate is positioned below the top horizontal section and defines a press cabin of the refrigerator together with the top horizontal section, the bent section and the lower part of the shell.
Optionally, the top horizontal section is provided with a plurality of pipeline interfaces, wherein stepped flanges are formed at the pipeline interfaces to increase the matching area between the pipeline of the refrigerator and the top horizontal section.
Optionally, the pipeline includes the drain pipe, and the drain pipe is integrated into one piece structure, has the body and is located the sealed pad at body top, and the pipeline interface is worn to establish by the body, and sealed pad cooperates with the outlet of inner bag.
Optionally, the box further comprises: and the lower beam is arranged in front of the bottom horizontal section and is clamped and fixed with the bottom horizontal section.
Optionally, the lower beam comprises a vertical section, a horizontal section and a clamping section which are arranged in sequence from front to back, wherein the clamping section of the lower beam is provided with a vertical part and a horizontal part, the vertical part of the lower beam is formed by extending upwards from the horizontal section, and the horizontal part of the lower beam is formed by extending backwards from the vertical part of the lower beam;
the clamping section is arranged at the front end of the bottom horizontal section of the bottom plate, the clamping section of the bottom plate is provided with a vertical part and a horizontal part, the vertical part of the bottom plate extends upwards from the bottom horizontal section, and the horizontal part of the bottom plate extends forwards from the vertical part of the bottom plate; and is
The vertical part of the bottom plate is slightly higher than the vertical part of the lower beam, and the horizontal part of the bottom plate is slightly wider than the horizontal part of the lower beam.
Optionally, the horizontal section further extends backwards on two sides of the clamping section of the lower beam to form protrusions;
gaps are respectively defined between the clamping section of the bottom plate and the flanging formed at the left side edge of the bottom plate as well as between the clamping section of the bottom plate and the flanging formed at the right side edge of the bottom plate;
the projection fits in the gap on the same side thereof.
Optionally, a bottom corner seal is arranged between the supporting plate and the lower part of the shell;
the bottom corner sealing element comprises a first sealing layer and a second sealing layer, the first sealing layer and the second sealing layer are fixed through glue, the hardness of the first sealing layer is smaller than that of the second sealing layer, and the thickness of the first sealing layer is larger than that of the second sealing layer.
Optionally, the shell is provided with a corner seal at the corner of the back and the side plate;
the corner seal has a first portion, a second portion, and a third portion;
the second part and the third part are respectively formed on two opposite sides of the first part, wherein the first part is filled in the groove-shaped gap of the shell, the third part is positioned at the collision angle, and the second part is far away from the collision angle.
Optionally, the corner seal comprises a first sealing layer and a second sealing layer, the first sealing layer and the second sealing layer having a first portion, a second portion and a third portion respectively, the first portion, the second portion and the third portion being adhesively connected, and the first sealing layer having a hardness less than the second sealing layer and a hard thickness greater than the second sealing layer.
The refrigerator comprises a refrigerator body, wherein the refrigerator body comprises a shell and an inner container, a storage space is defined in the inner container, a foaming space is defined between the inner container and the shell, when the refrigerator body is foamed and filled by adopting a polyurethane foaming reaction, the pressure of the foaming space is dynamically changed, the heat preservation performance of the refrigerator is improved, the cost of a foaming material is reduced, the curing time is shortened, the number of surface bubbles is reduced, and the surface crust is improved.
Furthermore, the refrigerator improves the bottom plate, the matching of the bottom plate and the lower beam, the drain pipe structure, the sealing of the shell and the like, so that the sealing technology during foaming of the refrigerator is enhanced, the sealing effect can meet the requirement of dynamic pressure change, and the refrigerator is easier to operate.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic side view of a refrigerator according to one embodiment of the present invention.
Fig. 2 is a schematic view of the apparatus of fig. 1 during foaming.
FIG. 3 is a schematic view showing the reaction stages in the polyurethane foaming reaction in a refrigerator.
FIG. 4 is a schematic diagram of the reaction stages of the present invention in dynamically adjusting the pressure in the mold cavity according to various embodiments during foaming.
Fig. 5 is a perspective view of the refrigeration container, the drain pipe and the bottom plate of the refrigerator shown in fig. 1.
Fig. 6 is a perspective view illustrating a drain pipe and a bottom plate of the refrigerator shown in fig. 1.
Fig. 7 is an exploded view of the bottom plate and the lower beam of the refrigerator shown in fig. 1.
Fig. 8 is a partially enlarged schematic view of a portion a in fig. 7.
Fig. 9 is a partially enlarged schematic view of a portion B in fig. 7.
Fig. 10 is a perspective view illustrating a bottom corner seal of a refrigerator according to one embodiment of the present invention.
Fig. 11 is a perspective view illustrating a corner seal of a refrigerator according to one embodiment of the present invention.
Fig. 12 is a perspective view illustrating the use of the corner seal of the refrigerator shown in fig. 11.
Detailed Description
Fig. 1 is a schematic side view of a refrigerator 100 according to an embodiment of the present invention, showing only a refrigerating inner container 130 corresponding to a refrigerating compartment located at an upper portion. The refrigerator 100 according to the embodiment of the present invention includes a cabinet 110 and a door (not shown). The case 110 includes an outer case 120 and an inner container 130. The interior of the inner container 130 defines a storage space 140. A foaming space 150 is defined between the inner container 130 and the outer casing 120, wherein when the tank body 110 is filled with polyurethane foaming reaction by foaming, the pressure of the foaming space 150 is dynamically changed. Storage space 140 constitutes one or more storage compartments. The door body is arranged at the front side of the storage chamber and used for opening and closing the storage chamber. The quantity and the structure of storing compartment can dispose according to the demand. For example, the storage compartment includes a refrigerating compartment and a freezing compartment which are arranged in this order from top to bottom. For another example, the storage compartment includes a refrigerating compartment, a temperature-changing compartment and a freezing compartment which are sequentially arranged from top to bottom. The refrigerator 100 of the embodiment of the invention comprises a refrigerator body 110, the refrigerator body 110 comprises a shell 120 and an inner container 130, a storage space 140 is defined in the inner container 130, a foaming space 150 is defined between the inner container 130 and the shell 120, when the refrigerator body 110 is foamed and filled by adopting a polyurethane foaming reaction, the pressure of the foaming space 150 is dynamically changed, the heat preservation performance of the refrigerator 100 is improved, the cost of a foaming material is reduced, the curing time is shortened, the number of surface bubbles is reduced, and the surface crust is improved.
Fig. 2 is a schematic view of the apparatus in foaming the refrigerator 100 shown in fig. 1. When foaming is carried out, the box body 110 is placed in a relatively closed die cavity 900 (mainly composed of a clamp device), the die cavity 900 is connected with a pressure control device 910 (mainly a vacuum pump or a booster pump), after the clamp device is positioned and closed, a foaming gun head 920 is inserted into the box body 110, materials are injected into the foaming space 150, the pressure in the die cavity 900 is dynamically controlled through the pressure control device 910 along with the advancing of foaming chemical reaction, the pressure in the foaming space 150 is dynamically changed until the foaming materials are completely filled, after a period of time, the foaming gun head 920 is withdrawn, the foaming gun head is waited for solidification, then the box body 110 is taken out of the die cavity 900, and the next procedure is carried out. The pressure inside the foaming space 150 ranges from 10Mpa to-0.1 Mpa. In some preferred embodiments, the pressure inside the foaming space 150 ranges from 2Mpa to-0.1 Mpa.
Fig. 3 is a schematic view of the reaction stages in the polyurethane foaming reaction performed by the refrigerator 100. The polyurethane foaming reaction comprises a milky white stage, a gel stage and a non-stick stage which are sequentially carried out, and the reaction process refers to the foam climbing condition in figure 3. In some embodiments, in the foaming of the refrigerator 100 of the embodiment of the present invention, the pressure inside the foaming space 150 is dynamically adjusted in each of the cream stage, the gel stage, and the hands-free stage. In other embodiments, in the foaming of the refrigerator 100 according to the embodiment of the present invention, the pressure inside the foaming space 150 is dynamically adjusted in one or two of the milky-white stage, the gel stage, and the hands-free stage. In a preferred embodiment, in the foaming of the refrigerator 100 of the embodiment of the present invention, the pressure inside the foaming space 150 is dynamically adjusted at the gel stage, considering that the foam filling is mainly concentrated at the gel stage. That is, the refrigerator 100 according to the embodiment of the present invention may dynamically adjust the pressure in the foaming space 150 all the time during the foaming reaction, or may dynamically adjust the pressure in the foaming space 150 at one or two stages of the foaming reaction. For example, the pressure in the foaming space 150 may be dynamically adjusted during the cream phase, the gel phase, or the tack-free phase. As another example, the pressure in the foaming space 150 may be dynamically adjusted during the cream phase and the gel phase, while the pressure is kept constant during the tack-free phase.
In the foaming of the refrigerator 100 according to the embodiment of the present invention, the pressure inside the foaming space 150 may be continuously changed or the pressure inside the foaming space 150 may be intermittently changed while the dynamic adjustment is performed. Fig. 4 is a schematic diagram of the reaction stages in dynamically adjusting the pressure in the mold cavity according to various embodiments of the invention when the refrigerator 100 is foamed. In embodiment 1, the refrigerator 100 according to the embodiment of the present invention performs foaming by continuously decreasing the pressure in the foaming space 150 from the milky-white stage to the tack-free stage, and then continuously increasing the pressure in the foaming space 150 to the normal pressure. In embodiment 2, the refrigerator 100 according to the embodiment of the present invention performs foaming by intermittently decreasing the pressure in the foaming space 150 at the milky-white stage until the tack-free stage, and then continuously increasing the pressure in the foaming space 150 to the normal pressure. For example, the whole foaming process is performed by gradually changing from-0.009 MPa to-0.009 MPa, maintaining the pressure of-0.009 MPa for a certain period of time, then gradually changing from-0.009 MPa to-0.013 MPa, and maintaining the pressure of-0.013 MPa for a certain period of time, then gradually changing from-0.013 MPa to 0 MPa. In embodiment 3, the refrigerator 100 according to the embodiment of the present invention keeps the pressure constant in the cream stage and the gel stage, and continuously increases the pressure in the foaming space 150 to the normal pressure in the tack-free stage. For example, the pressure of-0.019 MPa is maintained for a certain period of time, and then gradually changed from-0.019 MPa to 0MPa, thereby completing the entire foaming process. In embodiment 4, the refrigerator 100 according to the embodiment of the present invention continuously reduces the pressure in the foaming space 150 in the milky-white stage, maintains the pressure constant in the gel stage, and continuously increases the pressure in the foaming space 150 to the normal pressure in the tack-free stage. In embodiment 5, the foaming of the refrigerator 100 according to the embodiment of the present invention is performed by continuously adjusting the pressure in the foaming space 150 in a curved line form, in which the pressure is continuously decreased to a certain point and then continuously increased to the normal pressure. In embodiment 6, the refrigerator 100 according to the example of the present invention is foamed by keeping the pressure constant in the cream stage and the early stage of the gel stage, and continuously reducing the pressure to the normal pressure in the later stage of the gel stage and the tack-free stage. It should be understood that the figures are schematic representations of the staged, continuous/intermittent nature of the dynamic pressure adjustment of the foaming of the refrigerator 100 of an embodiment of the present invention.
Considering that the internal pressure of the refrigerator body 110 of the refrigerator 100 according to the embodiment of the present invention is dynamically changed, the reaction speed is severe, gas is generated and discharged, and the pressure-bearing capacity of the internal of the refrigerator body 110 is higher than that of the conventional one, the present invention provides an improvement to the sealing technology to ensure that the foaming material is gas-permeable and does not overflow.
Fig. 5 is a perspective view of the refrigerating inner container 130, the drain pipe 600 and the bottom plate 200 of the refrigerator 100 shown in fig. 1. Fig. 6 is a perspective view illustrating the drain pipe 600 and the bottom plate 200 of the refrigerator 100 shown in fig. 1. Fig. 7 is an exploded view of the bottom plate 200 and the lower beam 400 of the refrigerator 100 shown in fig. 1. The cabinet 110 of the refrigerator 100 according to the embodiment of the present invention further includes: a base plate 200, a pallet 300, a lower beam 400, etc. The bottom panel 200 is located below the liner 130 and has a bottom horizontal section 201, a bent section 202, and a top horizontal section 203, typically steel. The pallet 300 is located below the top horizontal section 203 and defines a compressor compartment 160 of the refrigerator 100 together with the top horizontal section 203, the bent section 202, and a lower portion of the outer case 120, and a compressor, a heat dissipation fan, a condenser, and an evaporation pan of the refrigerator 100 are disposed in the compressor compartment 160. The lower beam 400 is disposed forward of the bottom horizontal section 201. The bending section 202 may specifically include a first inclined portion 221, a second inclined portion 222, and a third inclined portion 223, which are sequentially disposed, and have different inclinations, gradually raising the height of the entire bottom plate 200. In some embodiments, the bottom horizontal section 201 of the bottom plate 200 of the refrigerator body 110 of the refrigerator 100 according to the embodiment of the present invention is of a non-porous structure, and the bottom plate 200 is formed with flanges 206 extending upward at the left, right, and rear sides thereof. Unlike the conventional bottom plate 200, which usually has a plurality of air vents on the bottom horizontal section 201, the present invention proposes to provide the bottom horizontal section 201 with an air-vent-free structure. Meanwhile, the conventional base plate 200 is formed by electric welding and splicing, but the invention proposes that the side edge of the base plate 200 is extended to form the flange 206, and the side edge can be pressed and riveted along the flange 206.
Fig. 8 is a partially enlarged schematic view of a portion a in fig. 7. In some embodiments, the top horizontal section 203 of the bottom plate 200 of the refrigerator body 110 of the refrigerator 100 according to the embodiment of the present invention is provided with a plurality of pipeline interfaces 230, wherein stepped flanges 231 are formed at the pipeline interfaces 230 to increase the matching area of the pipeline of the refrigerator 100 and the top horizontal section 203.
As shown in fig. 6, in some embodiments, the pipeline of the refrigerator 100 according to the embodiments of the present invention includes a drain pipe 600, the drain pipe 600 is an integrally formed structure and has a pipe body 601 and a sealing pad 602 located at the top of the pipe body 601, the pipe body 601 penetrates through the pipeline interface 230, and the sealing pad 602 is matched with the drain opening of the inner container 130. In the prior art, the drain pipe is of a sectional assembly type structure and comprises a circular pipe and a matching seat, for example, a sealing material is arranged between the circular pipe and the matching seat, the sealing material is arranged at the joint of the circular pipe and the bottom plate 200, a bonding adhesive tape is externally coated on the outer side of the matching seat, and the drain pipe needs to be assembled for many times and has a plurality of flash parts. The invention provides an auxiliary sealing concept of the integrated pipe body 601 with the sealing gasket 602, and the integrated pipe body is convenient to use, and flash parts are greatly reduced. The drain pipe 600 may be made of an integrated foam or rubber material.
In some embodiments, the lower beam 400 of the cabinet 110 of the refrigerator 100 according to embodiments of the present invention is snap-fitted to the bottom horizontal section 201. Fig. 9 is a partially enlarged schematic view of a portion B in fig. 7. The lower beam 400 comprises a vertical section 401, a horizontal section 402 and a clamping section 403 which are arranged in sequence from front to back, wherein the clamping section 403 of the lower beam 400 is provided with a vertical part 431 and a horizontal part 432, the vertical part 431 of the lower beam 400 is formed by extending upwards from the horizontal section 402, and the horizontal part 432 of the lower beam 400 is formed by extending backwards from the vertical part 431 of the lower beam 400. The bottom plate 200 is provided with a clamping section 204 at the front end of the bottom horizontal section 201, wherein the clamping section 204 of the bottom plate 200 is provided with a vertical part 241 and a horizontal part 242, the vertical part 241 of the bottom plate 200 is formed by extending upwards from the bottom horizontal section 201, and the horizontal part 242 of the bottom plate 200 is formed by extending forwards from the vertical part 241 of the bottom plate 200; and the vertical portion 241 of the base plate 200 is slightly higher than the vertical portion 431 of the lower beam 400, and the horizontal portion 242 of the base plate 200 is slightly wider than the horizontal portion 432 of the lower beam 400. Meanwhile, the horizontal section 402 is further extended backward to form protrusions 404 on both sides of the clamping section 403 of the lower beam 400; gaps 205 are respectively defined between the clamping section 204 of the bottom plate 200 and the flanges 206 formed on the left side of the bottom plate 200 and between the flanges 206 formed on the right side of the bottom plate 200; the protrusion 404 fits within the gap 205 on the same side thereof. In the conventional refrigerator, the lower beam 400 and the bottom plate 200 are directly attached together, or an additional fixing member is used for assisting the pressing, and the invention provides a clamping structure formed by the lower beam and the bottom plate, so that the stability is improved, and the assembling difficulty is reduced.
In the prior art, the two corners at the bottom of the tray 300, where it is engaged with the housing 120, and the two corners 124 at the top of the housing 120 where the back 121 engages with the side plates 122, are sealed with a generally square sealing block. However, the conventional common sealing block cannot ensure the sealing effect because the complex matching surfaces are provided. Accordingly, the present invention also proposes a bottom corner seal 800 and a corner-strike seal 700.
Fig. 10 is a perspective schematic view of a bottom corner seal 800 of the refrigerator 100 according to one embodiment of the present invention. In some embodiments, a bottom corner seal 800 is disposed between the tray 300 of the cabinet 110 and the bottom of the outer case 120 of the refrigerator 100 according to the embodiment of the present invention. The bottom corner seal 800 comprises a first sealing layer 801 and a second sealing layer 802, the first sealing layer 801 and the second sealing layer 802 are fixed in an adhesive mode, the hardness of the first sealing layer 801 is smaller than that of the second sealing layer 802, and the thickness of the first sealing layer 801 is larger than that of the second sealing layer 802. The first sealant 801 is soft, and is mainly used for better fitting with the gap between the housing 120 and the supporting plate 300 to seal the bottom; the hardness of the second sealing layer 802 is slightly larger, and the installation and fixation of an operator are facilitated.
Fig. 11 is a perspective schematic view of a corner seal 700 of the refrigerator 100 according to one embodiment of the present invention. Fig. 12 is a perspective view illustrating the corner seal 700 of the refrigerator 100 shown in fig. 11 in use. In some embodiments, the outer case 120 of the cabinet 110 of the refrigerator 100 of the embodiment of the present invention is provided with a corner seal 700 at a corner 124 of the rear 121 and the side panel 122 thereof. The corner seal 700 includes a first sealing layer 701 and a second sealing layer 702. The first sealing layer 701 and the second sealing layer 702 are both adhesively connected, and the hardness of the first sealing layer 701 is less than that of the second sealing layer 702, and the thickness of the first sealing layer 701 is greater than that of the second sealing layer 702. The first sealing layer 701 is soft, and is mainly used for better fitting with the groove-shaped gap 123 of the shell 120 to be sealed to the bottom; the hardness of the second sealing layer 702 is slightly larger, which is mainly convenient for an operator to install and fix. The first sealant 701 has a first portion 711, a second portion 712 and a third portion 713, the second portion 712 and the third portion 713 are respectively formed at opposite sides of the first portion 711, wherein the first portion 711 is filled in the groove-shaped gap 123 of the housing 120, the third portion 713 is located at the meeting corner 124, and the second portion 712 is located away from the meeting corner 124. The second sealing layer 702 has a first portion 721, a second portion 722 and a third portion 723, respectively, the second portion 722 and the third portion 723 are formed on two opposite sides of the first portion 721, respectively, wherein the first portion 721 is filled in the groove-shaped gap 123 of the housing 120, the third portion 723 is located at the meeting corner 124, and the second portion 722 is far away from the meeting corner 124.
The refrigerator 100 of the embodiment of the invention improves the matching of the bottom plate 200, the bottom plate 200 and the lower beam 400, the structure of the drain pipe 600, the sealing of the shell 120 and the like, so that the sealing technology during foaming of the refrigerator 100 is enhanced, the sealing effect can meet the requirement of dynamic pressure change, and the operation is easier.
The effect of dynamically adjusting the pressure and improving the sealing technique on the performance of the refrigerator 100 of an embodiment of the present invention is discussed below.
Table 1 shows performance test data of products obtained after foaming of the refrigerator 100 of the example of the present invention in embodiments 2, 3, 4 and 6. Comparative example 1 was foaming using a conventional constant pressure.
Table 1 performance test results data
As can be seen from table 1, the heat insulating performance of the refrigerator 100 is improved and more excellent surface quality is obtained.
The specific pressure control parameters can be determined by experimental evaluation and matching in combination with product structures, raw material systems, process parameters and the like, and can realize better performance (K value), lower material cost and better quality after matching, so that the method is a great breakthrough to the foaming technology under the traditional atmospheric environment pressure. Through tests, the heat preservation performance of the refrigerator 100 provided by the embodiment of the invention is improved by 7-10%, and can be even lower than 15 mW/m.K; the cost of the foaming material can be saved by 2-3%; the curing time can be reduced by 30-50%; and obtains better surface quality, the number of bubbles on the surface of the foam is reduced by more than 30-50%, and the surface crust is improved by 40-60%.
Table 2 shows the effect data of foam filling at different pressures and different material temperatures in the pressure regulation form of embodiment 4. Comparative example 2 is effect data when no modification is made to the case 110.
Table 2 performance test results data
As can be seen from table 2, the foaming of the improved sealing case 110 provided by the embodiment of the present invention has significantly better filling time, thermal conductivity, and surface quality than the existing case.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A refrigerator comprising a cabinet, the cabinet comprising:
a housing; and
the inner container is internally provided with a storage space, and a foaming space is defined between the inner container and the shell; wherein
When the box body is foamed and filled by adopting a polyurethane foaming reaction, the pressure of the foaming space is dynamically changed.
2. The refrigerator according to claim 1,
the box still includes:
the bottom plate is positioned below the inner container and is provided with a bottom horizontal section, a bending section and a top horizontal section, wherein the bottom horizontal section is of a non-porous structure, and flanges are formed by upward extending the left side edge, the right side edge and the rear side edge of the bottom plate; and
and the supporting plate is positioned below the top horizontal section and defines a press cabin of the refrigerator together with the top horizontal section, the bent section and the lower part of the shell.
3. The refrigerator according to claim 2,
the refrigerator comprises a top horizontal section and a bottom horizontal section, wherein the top horizontal section is provided with a plurality of pipeline interfaces, and step-shaped flanges are formed at the pipeline interfaces so as to increase the matching area of a pipeline of the refrigerator and the top horizontal section.
4. The refrigerator according to claim 3,
the pipeline includes the drain pipe, the drain pipe is integrated into one piece structure, has the body and is located the sealed pad at body top, the body is worn to establish the pipeline interface, sealed pad with the outlet cooperation of inner bag.
5. The refrigerator according to claim 2,
the box still includes: and the lower beam is arranged in front of the bottom horizontal section and is clamped and fixed with the bottom horizontal section.
6. The refrigerator according to claim 5,
the lower beam comprises a vertical section, a horizontal section and a clamping section which are sequentially arranged from front to back, wherein the clamping section of the lower beam is provided with a vertical part and a horizontal part, the vertical part of the lower beam extends upwards from the horizontal section, and the horizontal part of the lower beam extends backwards from the vertical part of the lower beam;
the clamping section is arranged at the front end of the bottom horizontal section of the bottom plate, the clamping section of the bottom plate is provided with a vertical part and a horizontal part, the vertical part of the bottom plate extends upwards from the bottom horizontal section, and the horizontal part of the bottom plate extends forwards from the vertical part of the bottom plate; and is
The vertical part of the bottom plate is slightly higher than the vertical part of the lower beam, and the horizontal part of the bottom plate is slightly wider than the horizontal part of the lower beam.
7. The refrigerator according to claim 6,
the horizontal section is also provided with bulges which extend backwards on two sides of the clamping section of the lower beam respectively;
gaps are respectively defined between the clamping section of the bottom plate and the flanging formed on the left side edge of the bottom plate as well as between the clamping section of the bottom plate and the flanging formed on the right side edge of the bottom plate;
the projection fits within the gap on the same side thereof.
8. The refrigerator according to claim 2,
a bottom corner sealing element is arranged between the supporting plate and the bottom of the shell;
the bottom corner sealing piece comprises a first sealing layer and a second sealing layer, the first sealing layer and the second sealing layer are fixed in an adhesive mode, the hardness of the first sealing layer is smaller than that of the second sealing layer, and the thickness of the first sealing layer is larger than that of the second sealing layer.
9. The refrigerator according to claim 1,
the shell is provided with a meeting angle sealing piece at the meeting angle of the back of the shell and the side plate;
the corner seal having a first portion, a second portion, and a third portion;
the second part and the third part are respectively formed on two opposite sides of the first part, wherein the first part is filled in the groove-shaped gap of the shell, the third part is positioned at an impact angle, and the second part is far away from the impact angle.
10. The refrigerator of claim 9, wherein,
the corner seal comprises a first sealing layer and a second sealing layer, wherein the first sealing layer and the second sealing layer are respectively provided with a first part, a second part and a third part which are connected by gluing, the hardness of the first sealing layer is smaller than that of the second sealing layer, and the thickness of the first sealing layer is larger than that of the second sealing layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910798182.4A CN112444093B (en) | 2019-08-27 | 2019-08-27 | Refrigerator with a door |
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|---|---|---|---|
| CN201910798182.4A CN112444093B (en) | 2019-08-27 | 2019-08-27 | Refrigerator with a door |
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| CN112444093B CN112444093B (en) | 2022-03-25 |
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| CN206504532U (en) * | 2017-01-18 | 2017-09-19 | 合肥华凌股份有限公司 | Shielding angle pad and freezer component |
| CN208688064U (en) * | 2018-04-13 | 2019-04-02 | 青岛海尔股份有限公司 | Refrigerator with the bottom structure for being conducive to heat dissipation |
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| CN104990348A (en) * | 2015-07-02 | 2015-10-21 | 合肥华凌股份有限公司 | Corner fastener for corners inside refrigerator shell of refrigerator |
| CN106679308A (en) * | 2016-11-16 | 2017-05-17 | 青岛海尔股份有限公司 | Refrigerator and base plate assembly used for refrigerator |
| CN206504532U (en) * | 2017-01-18 | 2017-09-19 | 合肥华凌股份有限公司 | Shielding angle pad and freezer component |
| CN208688064U (en) * | 2018-04-13 | 2019-04-02 | 青岛海尔股份有限公司 | Refrigerator with the bottom structure for being conducive to heat dissipation |
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| CN112444093B (en) | 2022-03-25 |
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