CN115371337A - Air duct assembly, box body frame and foaming method of refrigerator - Google Patents
Air duct assembly, box body frame and foaming method of refrigerator Download PDFInfo
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- CN115371337A CN115371337A CN202110541301.5A CN202110541301A CN115371337A CN 115371337 A CN115371337 A CN 115371337A CN 202110541301 A CN202110541301 A CN 202110541301A CN 115371337 A CN115371337 A CN 115371337A
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- foaming
- air duct
- flow channel
- blocking
- inner container
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- 238000005187 foaming Methods 0.000 title claims abstract description 183
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims abstract description 122
- 239000000463 material Substances 0.000 claims abstract description 122
- 238000007710 freezing Methods 0.000 claims abstract description 60
- 230000008014 freezing Effects 0.000 claims abstract description 60
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/762—Household appliances
- B29L2031/7622—Refrigerators
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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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides an air duct assembly, a refrigerator body frame and a foaming method of a refrigerator, which relate to the technical field of refrigerators and comprise the following steps: an air duct body; the blocking piece is arranged outside the air duct body and used for extending into the foaming flow channel to block a part of foaming material from flowing to an area with higher foaming density in the foaming flow channel. In the technical scheme, the blocking part is positioned outside the air duct body, so when the air duct assembly is integrally assembled in the refrigerator body, the blocking part positioned outside the air duct body can extend into a foaming flow channel formed among the refrigerating inner container, the freezing inner container and the inner wall of the refrigerator body, after foaming materials enter the foaming flow channel, the blocking part extending into the foaming flow channel can block a part of foaming materials to a certain degree, and the material dropping point of the foaming materials entering the foaming flow channel is adjusted in anticipation, so that the overall distribution state of the foaming materials is changed, and all parts in the refrigerator body are ensured to reach the foaming quality standard.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an air duct assembly, a refrigerator body frame and a foaming method of a refrigerator.
Background
At present, a refrigerator can adopt various foaming modes in the manufacturing process, material injection modes such as single-gun material injection, multi-gun material injection, bottom material injection, back material injection and the like can be adopted in different foaming modes, and the foaming process of most refrigerator bodies tends to adopt the mode to perform material injection operation of foaming materials because the cost of the bottom single-gun material injection mode is low and the foaming quality basically meets the production requirement.
However, due to the fact that the number of the gun heads and the material injection positions in the bottom single-gun material injection mode are correspondingly limited, the problem that the density distribution of the refrigerator body with the bottom single-gun material injection mode is not uniform after foaming is completed is often caused, and the use amount of materials needs to be increased to ensure that all parts in the refrigerator body meet the foaming quality standard.
Disclosure of Invention
The invention aims to provide an air duct assembly, a box body frame and a foaming method of a refrigerator, and aims to solve the technical problems that in the prior art, the use amount of foaming materials is high, and the materials are wasted.
The invention provides an air duct assembly, comprising:
an air duct body;
and the blocking piece is arranged outside the air duct body and used for extending into the foaming flow channel to block a part of foaming material from flowing to an area with higher foaming density in the foaming flow channel.
Further, the blocking piece is movably connected with the air duct body.
Further, the blocking piece can adjust a connection angle relative to the air duct body; and/or the blocking piece can adjust the connection position relative to the air duct body.
Furthermore, a linear sliding connection groove is formed in the air duct body, a sliding connection portion is formed in the blocking piece, and the blocking piece is assembled with the sliding connection groove in a sliding mode through the sliding connection portion so as to adjust the connection position of the blocking piece on the air duct body.
Furthermore, a sliding connection seat is arranged on the air duct body, and the sliding connection groove is formed in the sliding connection seat; the blocking piece is a plate-shaped piece, and the sliding connection part is positioned on the side edge of the plate-shaped piece.
Furthermore, the sliding connection part is linear, and the length of the sliding connection groove is greater than that of the sliding connection part.
Furthermore, the cross sections of the sliding connection groove and the sliding connection part are both T-shaped.
Further, the wind channel body includes:
a housing, the barrier being disposed on the housing;
the shielding plate is arranged on the shell, forms a sealing groove together with the outer wall of the shell and is used for sealing and attaching the outer wall of the refrigerating inner container and/or the freezing inner container.
The present application further provides a case frame, including:
the box body is provided with a material injection hole;
the refrigerating liner and the freezing liner are both arranged in the inner cavity of the box body, and a foaming flow channel is formed between the refrigerating liner and the inner wall of the box body; the foaming flow channel at least comprises a first flow channel positioned between the refrigerating inner container and the inner wall of the box body and a second flow channel positioned between the freezing inner container and the inner wall of the box body, and the material injection hole is communicated with the second flow channel;
the air duct assembly is arranged in the inner cavity of the box body; the blocking piece extends into the space between the first flow channel and the second flow channel, and a flow gap is formed between the extending top end of the blocking piece and the inner wall of the box body.
Further, the width of the flow-through gap is 10mm to 20mm.
Further, the blocking member is disposed obliquely toward the first flow path direction.
Furthermore, the refrigerating inner container and the freezing inner container are arranged up and down, and the material injection hole of the foaming flow passage is positioned at the bottom of the box body.
Furthermore, the air duct assembly is located between the refrigerating inner container and the freezing inner container, the blocking piece extends into the foaming flow channel towards the direction of the back plate of the box body, and the material injection hole is located at the back of the box body.
Further, the effective blocking width of the blocking part is smaller than the width of the back plate of the box body.
The application also provides a foaming method of the refrigerator, which comprises the following steps:
arranging a blocking piece outside an air duct of the refrigerator, and enabling the blocking piece to extend into a foaming flow channel of the refrigerator;
and injecting a foaming material into the foaming flow channel, and in the flowing process of the foaming material, blocking a part of the foaming material from flowing to an area with higher foaming density in the foaming flow channel by using the blocking piece.
Furthermore, the connecting position of the blocking piece relative to the air duct is adjusted, and then the blocking position for the flowing of the foaming material is adjusted.
In the technical scheme, the blocking part is positioned outside the air duct body, so when the air duct assembly is integrally assembled in the refrigerator body, the blocking part positioned outside the air duct body can extend into a foaming flow channel formed among the refrigerating inner container, the freezing inner container and the inner wall of the refrigerator body, after foaming materials enter the foaming flow channel, the blocking part extending into the foaming flow channel can block a part of foaming materials to a certain degree, and the material dropping point of the foaming materials entering the foaming flow channel is adjusted in anticipation, so that the overall distribution state of the foaming materials is changed, and all parts in the refrigerator body are ensured to reach the foaming quality standard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an internal structure of a refrigerator in the prior art;
fig. 2 is a partially enlarged view of an inner structure of the refrigerator shown in fig. 1;
FIG. 3 is a plan view of an air chute assembly provided in accordance with one embodiment of the present invention;
FIG. 4 is a perspective view of an air chute assembly provided in accordance with one embodiment of the present invention 1;
FIG. 5 is an enlarged fragmentary view of the assembled air duct assembly shown in FIG. 4;
FIG. 6 is a perspective view of an air chute assembly provided in accordance with one embodiment of the present invention 2;
FIG. 7 is a schematic view of an assembled structure of an air duct assembly according to an embodiment of the present invention;
FIG. 8 is an enlarged fragmentary view of the assembled air duct assembly shown in FIG. 7;
FIG. 9 is a perspective view of an air duct assembly mounting structure provided in accordance with one embodiment of the present invention;
FIG. 10 is a plan view of an air duct assembly mounting structure provided in accordance with one embodiment of the present invention.
Reference numerals:
100. an air duct body; 200. a blocking member; 300. a box body;
400. refrigerating the inner container; 500. freezing the inner container;
110. a sliding connection groove; 120. a sliding connection seat; 130. a housing;
140. a shielding plate; 150. a sealing groove; 160. a wind cavity;
210. a sliding connection part;
310. a foaming flow channel; 320. a flow-through gap; 330. a back plate; 340. a material injection hole;
311. a first flow passage; 312. a second flow passage; 313. and a third flow passage.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First, referring to fig. 1 and 2, an internal structure of a conventional refrigerator is generally provided with a refrigerating liner 400 and a freezing liner 500, after the refrigerating liner 400 and the freezing liner 500 are assembled in a refrigerator body 300 of the refrigerator, an interlayer space is formed with an inner wall of the refrigerator body 300, the interlayer space forms a foaming flow channel 310, and a foaming material needs to be injected into the foaming flow channel 310 to form a foaming layer, so as to ensure a heat preservation effect of the refrigerating liner 400 and the freezing liner 500. Generally, a refrigerating compartment is formed in the refrigerating inner container 400 to store foods to be kept fresh, and a freezing inner container 500 is formed in the freezing inner container 500 to store foods to be frozen.
Since the refrigerating chamber and the freezing chamber formed in the refrigerating liner 400 and the freezing liner 500 do not have any function, the foaming material needs to be different in the foaming flow passage 310 around the refrigerating liner 400 and the freezing liner 500, that is, the temperature of the freezing chamber for storing the food to be frozen is generally lower than that of the refrigerating liner 400 for storing the food to be kept fresh, and the quality requirement of the foaming layer around the freezing liner 500 is higher, so that more foaming material needs to be used around the freezing liner 500 than around the refrigerating chamber to ensure the low temperature maintaining effect around the freezing liner 500.
However, when the foaming flow channel 310 around the freezing inner container 500 and the refrigerating inner container 400 is injected by a bottom single-gun injection method, the foaming flow channel 310 is prone to have a high-low density distribution trend, and when the width difference between the foaming flow channel 310 around the refrigerating inner container 400 and the foaming flow channel 310 around the freezing inner container 500 is small, the high-low density distribution is particularly obvious.
As shown in fig. 1 and fig. 2, after research, it was found that when a single gun is used to inject a foaming material into the bottom of the refrigerator, the foaming material is in a liquid phase, and the foaming material enters the foaming flow channel 310 and then falls into the periphery of the refrigerating liner 400 under the filling pressure, at this time, the foaming flow channel 310 around the refrigerating liner 400 becomes a material dropping point of the foaming material, and the amount of the foaming material injected at the material dropping point is greater than that of the foaming material injected at other positions, and due to the lack of pressure difference between the periphery of the refrigerating liner 400 and the periphery of the freezing liner 500, the foaming material also expands uniformly around the refrigerating liner 400 and the periphery of the freezing liner 500. Therefore, since the position of the falling point of the foaming material is formed around the refrigerating inner container 400, there is more foaming material around the refrigerating inner container 400, which causes the foaming density around the freezing inner container 500 to be lower than that around the refrigerating inner container 400 when the foaming material is injected into the bottom of the refrigerator by one gun, and it is necessary to inject more foaming material around the freezing inner container 500 to form a foaming layer with higher density around the freezing inner container 500 in order to satisfy the requirement of the foaming layer around the freezing inner container 500.
In addition, in the case 300 structure in which the width difference between the foaming flow channel 310 around the refrigerating liner 400 and the foaming flow channel 310 around the freezing liner 500 is large, the foaming material will preferentially expand toward the wider foaming flow channel 310 instead of expanding in the expected direction, which is also the reason why the density distribution is different after foaming in the conventional refrigerator with similar structure, which will also result in coarse foaming and poor foaming quality.
In order to solve the above technical problem, the present application provides the following technical solutions.
In the scheme of this application, based on the aforesaid foaming material enters into foaming runner 310 in the blanking point be in around cold-stored inner bag 400 and lead to the shortcoming of foaming material not enough around freezing inner bag 500, this application provides an air duct assembly, with this air duct assembly inside the back at the box 300 of refrigerator, can change the blanking point of foaming material, and then solve the problem that foaming volume is not enough around freezing inner bag 500.
As shown in fig. 3 to fig. 6, the air duct assembly provided in this embodiment includes an air duct body 100; the air duct assembly further comprises a blocking member 200, the blocking member 200 is arranged outside the air duct body 100, and when the air duct assembly is integrally assembled in the refrigerator body 300 of the refrigerator, the blocking member 200 is used for extending into the foaming flow channel to block a part of foaming material from flowing to an area with higher foaming density in the foaming flow channel. At this time, the air duct body 100 may adopt the structure of the existing air duct, the air cavity 160 may be formed inside the air duct body 100, and after the air duct body 100 is assembled with the refrigerating liner 400 or the freezing liner 500 relatively, the air cavity 160 in the air duct body 100 may be communicated with the refrigerating compartment in the refrigerating liner 400 and may also be communicated with the freezing compartment in the freezing liner 500, so that an air duct structure for flowing cold air is formed between the refrigerating compartment and the freezing compartment, and the air duct body 100 is not limited too much here.
Based on the structure of the air duct body 100, the air duct assembly of the present application is additionally provided with the blocking member 200 capable of being assembled on the air duct body 100, and the blocking member 200 is not assembled at a corresponding position of the internal air cavity 160 of the air duct body 100, but assembled outside the air duct body 100, so that the blocking member 200 does not function to guide the cold air flowing between the refrigerating compartment and the freezing compartment. Since the blocking member 200 is located outside the air duct body 100, when the air duct assembly is integrally assembled in the refrigerator body 300 of the refrigerator, the blocking member 200 located outside the air duct body 100 must extend into the foaming flow channel 310 formed between the refrigerating liner 400, the freezing liner 500 and the inner wall of the refrigerator body 300, and therefore, after the foaming material enters the foaming flow channel 310, the blocking member 200 extending into the foaming flow channel 310 can block a part of the foaming material to a certain extent. The air duct assembly provided by the present application is based on the blocking effect of the blocking member 200 located outside the air duct body 100 on the foaming material, and the adjustment is formed on the material dropping point of the foaming material entering the foaming flow channel 310 in anticipation, and the expected adjustment effect is to use the blocking member 200 to block a part of the foaming material from entering the periphery of the refrigerating inner container 400.
Since the air duct assembly is an assembly structure assembled in the refrigerator body 300, the blocking member 200 thereon can also show the blocking effect on the foaming material when the air duct assembly is integrally assembled in the refrigerator body 300 and forms a certain matching structure with the inner space of the refrigerator body 300, and therefore, the description will be clearer in conjunction with the refrigerator structure in which the air duct assembly is integrally assembled in the refrigerator body 300, as shown in fig. 7 to 10. In the refrigerator structure shown in fig. 7 to 10, the refrigerator body 300 needs to have the material injection hole 340, and the refrigerating inner container 400 and the freezing inner container 500 are both disposed in the inner cavity of the refrigerator body 300 and form the foaming flow channel 310 with the inner wall of the refrigerator body 300. The foaming flow channel 310 includes a first flow channel 311 located between the refrigerating liner 400 and the inner wall of the box body 300, a second flow channel 312 located between the freezing liner 500 and the inner wall of the box body 300, the material injection hole 340 is communicated with the second flow channel 312, and a third flow channel 313 located between the refrigerating liner 400 and the freezing liner 500, and the first flow channel 311, the second flow channel 312 and the third flow channel 313 form a whole flow channel structure through which the foaming material can advance.
At this time, it is necessary to dispose the air duct assembly in the inner cavity of the housing 300, and ensure that the blocking member 200 can extend into the space between the first flow passage 311 and the second flow passage 312, and a flow gap 320 is formed between the top end of the blocking member 200 extending into the inner wall of the housing 300. When the air duct assembly is assembled in the refrigerator body 300 in such a structure, the blocking member 200 may form a certain blocking effect between the first flow passage 311 and the second flow passage 312, and adjust a material falling point of the foaming material between the first flow passage 311 and the second flow passage 312, that is, when the foaming material advances from the periphery of the freezing inner container 500 to the periphery of the refrigerating inner container 400, the foaming material may be blocked to a certain extent, so that even when the foaming material mainly advances to the periphery of the refrigerating compartment under the filling pressure, more foaming material may be left around the freezing inner container 500 by the blocking effect of the blocking member 200, and the injection amount of the foaming material around the refrigerating inner container 400 and the freezing inner container 500 may be adjusted, so that when enough foaming material is ensured around the refrigerating inner container 400, more foaming material may be left around the freezing inner container 500, and the foaming density around the freezing inner container 500 may be increased without increasing the injection amount of the entire foaming material, and the distribution of the foaming material may be reasonably distributed.
When the blocking member 200 guides and distributes the foaming material, the relative position relationship between the blocking member 200 and the refrigerator body 300 is very important, and in order to improve the flow guiding effect of the blocking member 200 on the foaming material under different requirements, the blocking member 200 is further movably connected with the air duct body 100. This articulation may be understood as the position and angle of the assembly between the barrier 200 and the duct body 100 being adjustable as desired, for example, the barrier 200 may be adjustable in relation to the duct body 100 or the barrier 200 may be adjustable in relation to the duct body 100. In order to adjust the connection angle or the connection position of the blocking member 200 with respect to the air duct body 100, a corresponding detachable connection structure needs to be provided between the blocking member 200 and the air duct body 100, and the detachable connection structure may be an independent mechanical structure or a matching structure fixed to the air duct body 100 or the blocking member 200, for example, the blocking member 200 may be assembled by any structure capable of adjusting the connection position and the connection angle of the blocking member 200 with respect to the air duct body 100, such as a plug-in structure, a sliding rail structure, an adhesive structure, and a universal rotating shaft structure, which is not limited herein.
Further, in a specific embodiment, as shown in fig. 8 and 9, a linear sliding-contact groove 110 is provided on the air duct body 100, a sliding-contact portion 210 is provided on the blocking member 200, and the blocking member 200 is slidably assembled with the sliding-contact groove 110 through the sliding-contact portion 210 to adjust the connection position on the air duct body 100. At this time, the sliding groove 110 and the sliding portion 210 that can be slidably fitted to each other are formed in the air duct body 100 and the stopper 200, respectively, and the stopper 200 can be stably fitted to the air duct body 100 and the connection position of the stopper 200 to the air duct body 100 can be adjusted as needed by the relative sliding fit of the sliding groove 110 and the sliding portion 210. The connecting structure capable of adjusting the actual position of the blocking member 200 can be more suitable for actual requirements of different refrigerators on foaming effects in foaming processes, for example, for different heat preservation requirements of different positions corresponding to the distribution conditions of the middle chambers of the refrigerating liner 400 and the freezing liner 500 in the refrigerator body 300, the blocking member 200 can adjust the blocking position of the foaming material by adjusting the position of the blocking member on the air duct body 100, so that after the blocking member 200 is assembled in the refrigerator body 300, the actual blocking position of the foaming material can be adjusted according to requirements to dynamically adjust the distribution conditions of the foaming material, and the adjustable structure of the blocking member 200 can be suitable for refrigerators of more models.
For example, in this embodiment, since the sliding connection portion 210 and the sliding connection groove 110 are slidably connected in the longitudinal direction of the sliding connection groove 110, after the sliding connection portion 210 is slidably inserted into the sliding connection groove 110, the sliding connection portion 210 can be linearly slid with respect to the sliding connection groove 110 to adjust the position where the sliding connection portion 210 is actually inserted into and fixed in the sliding connection groove 110, and thus the actual connection position of the blocking member 200 with respect to the air duct body 100 can be adjusted. In order to ensure that the blocking member 200 can obtain a stable plug-in assembly structure after adjustment, further, the sliding connection portion 210 is linear, and the length of the sliding connection groove 110 is greater than that of the sliding connection portion 210, so that, within a certain adjustment range, even if the sliding connection portion 210 slides relative to the sliding connection groove 110 to change the position, the whole sliding connection portion 210 is located within the sliding connection groove 110, which can ensure that the connection strength of the blocking member 200 relative to the air duct body 100 is not changed, and the assembly stability can be effectively guaranteed.
Further, in order to improve the assembly stability of the blocking member 200 without damaging the structure of the original air duct body 100, as shown in fig. 8 and 9, the air duct body 100 is provided with a sliding seat 120, and the sliding groove 110 is formed in the sliding seat 120; the blocking member 200 is a plate-shaped member, and the sliding part 210 is located at a side edge of the plate-shaped member. At this time, the sliding connection seat 120, which is provided on the air duct body 100 and is specially used for opening the sliding connection groove 110, is added, even if the sliding connection groove 110 is provided on the air duct body 100, the problem that the wall thickness is thinned at the position where the sliding connection groove 110 is provided is not caused, and therefore, the overall structure stability of the original air duct body 100 is ensured. Meanwhile, after the sliding connection seat 120 is provided with the sliding connection groove 110, the thickness and the depth of the sliding connection seat 120 and the sliding connection groove 110 can be set in a targeted manner according to the assembling strength of the blocking member 200, so that a more stable assembling structure can be obtained after the blocking member 200 is assembled on the air duct body 100.
As for the structures of the sliding connection portion 210 and the sliding connection groove 110, the sliding connection portion 210 and the sliding connection groove 110 may be any groove-type structure, and when the sliding connection portion 210 and the sliding connection groove 110 are relatively slidably inserted, at least the sliding connection portion 210 and the sliding connection groove 110 may be stably connected by the relative interference fit therebetween. However, the sliding contact portion 210 needs not only a stable connection structure but also a smooth sliding in the sliding contact groove 110 during adjustment, and therefore, as shown in fig. 8 and 9, the sliding contact groove 110 and the sliding contact portion 210 have a T-shaped cross section. When the sliding contact groove 110 and the sliding contact portion 210 are inserted and fitted relatively, a certain relative engagement effect can be formed, and the relative separation between the two parts can be prevented. Therefore, the assembling structure not only can ensure the assembling stability of the two, but also has the effect of smooth sliding when the two are adjusted in a relative sliding way.
In one embodiment, the duct body 100 includes a housing 130, and the baffle 200 is disposed on the housing 130, wherein a wind chamber 160 is formed inside the housing 130; the air duct body 100 further includes a shielding plate 140, and the shielding plate 140 is disposed on the outer shell 130 and forms a sealing groove 150 together with the outer wall of the outer shell 130, for sealing and adhering to the outer wall of the refrigerating inner container 400 and/or the freezing inner container 500. Therefore, after the air duct assembly is assembled inside the refrigerator body 300, the air duct assembly can form an anastomotic assembly structure with the refrigerating liner 400 and the freezing liner 500, the shielding plate 140 can be attached to the outer walls of the refrigerating liner 400 and the freezing liner 500, and the sealing groove 150 formed by the shielding plate 140 is used for sealing the air cavities 160 of the refrigerating liner 400 and the freezing liner 500, so that the foaming material is prevented from permeating from gaps in the expansion process and leaking bubbles.
With continued reference to fig. 7-10, the present application further provides a case frame, comprising a case 300 having a feed hole 340; the refrigerator also comprises a refrigerating inner container 400 and a freezing inner container 500 which are both arranged in the inner cavity of the refrigerator body 300 and form a foaming flow channel 310 with the inner wall of the refrigerator body 300; the foaming flow channel 310 at least comprises a first flow channel 311 positioned between the refrigerating liner 400 and the inner wall of the box body 300 and a second flow channel 312 positioned between the freezing liner 500 and the inner wall of the box body 300, and the material injection hole 340 is communicated with the second flow channel 312; the refrigerator also comprises the air duct assembly which is arranged in the inner cavity of the refrigerator body 300; the blocking member 200 extends into the space between the first flow channel 311 and the second flow channel 312, and a flow gap 320 is formed between the extended top end and the inner wall of the box 300. Since the specific structure, functional principle and technical effect of the air duct assembly are described in detail in the foregoing, detailed description is omitted here, and any technical content related to the air duct assembly can refer to the above description.
The width of the flow gap 320 is 10mm to 20mm. For example, the width of the flow gap 320 is 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, etc., and within the above size range of the flow gap 320, a reasonable blocking effect can be provided for the flow of the foaming material, because too small width and too large resistance of the flow gap 320 cause too high density of the frozen foaming layer of the box 300, and too large width of the flow gap 320 causes a reduction in the flow guide effect, and thus, a reasonable adjustment of the distribution of the foaming material cannot be achieved. Meanwhile, the blocking member 200 is disposed in an inclined manner toward the first flow channel 311, and the inclined direction is the same as the flowing direction of the foaming material during material injection, so that a reasonable blocking effect can be formed on the foaming material.
In one embodiment, the refrigerating inner container 400 and the freezing inner container 500 are arranged up and down, and the material injection hole 340 of the foaming flow channel 310 is located at the bottom of the box 300. At this time, the foaming material can be injected from the bottom of the refrigerator body 300, and then passes through the periphery of the freezing inner container 500, and continuously moves towards the periphery of the refrigerating inner container 400, so that the foaming material is blocked to a certain extent by the blocking member 200, and the change of the material dropping point of the foaming material is realized. The air duct assembly is located between the refrigerating inner container 400 and the freezing inner container 500, the blocking member 200 extends into the foaming flow channel 310 toward the back plate 330 of the box 300, and the material injection hole 340 is located at the back of the box 300. Therefore, the blocking member 200 can mainly adjust the distribution of the foaming material on the side of the back plate 330, and of course, the air duct assembly and the blocking member 200 can also be disposed at the side plate of the refrigerator body 300 as required to adjust the distribution of the foaming material on the side plate, which is not described herein again. Wherein the effective blocking width of the blocking member 200 is smaller than the width of the back plate 330 of the case 300. At this time, although the blocking member 200 can block the foaming material of the back plate 330 of the refrigerator body 300, it is limited to form a blocking effect in a path at a partial position in the back plate 330, and besides, the effective blocking width of the blocking member 200 can be enlarged or reduced according to the requirement, so as to form a more significant or slight blocking effect on the foaming material at the back plate 330 side of the refrigerator body 300.
The application also provides a foaming method of the refrigerator, which comprises the following steps: arranging a blocking piece outside an air duct of the refrigerator, and enabling the blocking piece to extend into a foaming flow channel of the refrigerator; and injecting a foaming material into the foaming flow channel, and blocking a part of the foaming material from flowing to an area with higher foaming density in the foaming flow channel by using the blocking piece in the flowing process of the foaming material. Based on the structure of the box frame, it is also equivalent to inject the foaming material into the second flow channel 312 along the material injection hole 340, and a part of the foaming material is blocked from entering the first flow channel 311 by the blocking member 200 in the process of advancing the foaming material to the first flow channel 311. As can be seen from the above, the blocking member 200 can be used to adjust the actual blanking point of the foaming material, so as to adjust the actual distribution state of the foaming material, and reference may be made to the description of the blocking member 200 in the foregoing, which is not described herein again.
Further, in one embodiment, when the blocking member 200 is used to block the foaming material, the connection position of the blocking member with respect to the air duct may also be adjusted, so as to adjust the blocking position for the flowing of the foaming material. For example, the air duct assembly is installed in the refrigerator body 300, so that the blocking member 200 extends into the foaming flow channel 310 of the refrigerator to block a part of foaming material from entering the periphery of the refrigerating inner container 400; the connecting position of the blocking member 200 relative to the air duct assembly is adjusted, and then the blocking position of the foaming material is adjusted. Therefore, when the blocking member 200 is used to adjust the distribution of the foaming material, the adjustment position of the foaming material can be changed according to actual requirements, so as to be suitable for refrigerators of different models, and specific reference may be made to the foregoing description of the position change of the blocking member 200 relative to the air duct body 100, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (16)
1. An air duct assembly, comprising:
an air duct body;
and the blocking piece is arranged outside the air duct body and used for extending into the foaming flow channel to block a part of foaming material from flowing to an area with higher foaming density in the foaming flow channel.
2. The air duct assembly of claim 1, wherein the barrier is movably connected to the air duct body.
3. The air duct assembly of claim 2, wherein the blocking member is adjustable in connection angle relative to the air duct body; and/or the blocking piece can adjust the connection position relative to the air duct body.
4. The air duct assembly according to claim 3, wherein the air duct body is provided with a linear sliding groove, and the blocking member is provided with a sliding portion, and the blocking member is slidably assembled with the sliding groove through the sliding portion so as to adjust a connection position of the blocking member on the air duct body.
5. The air duct assembly according to claim 4, wherein the air duct body is provided with a sliding seat, and the sliding groove is formed in the sliding seat; the blocking piece is a plate-shaped piece, and the sliding connection part is positioned on the side edge of the plate-shaped piece.
6. The air duct assembly of claim 4, wherein the slip joint is linear and the length of the slip joint slot is greater than the length of the slip joint.
7. The air duct assembly of claim 4, wherein the slide-on slot and the slide-on portion are both T-shaped in cross-section.
8. The air duct assembly according to any one of claims 1-7, wherein the air duct body includes:
a housing, the barrier being disposed on the housing;
the shielding plate is arranged on the shell, forms a sealing groove together with the outer wall of the shell and is used for sealing and attaching the outer wall of the refrigerating inner container and/or the freezing inner container.
9. A case frame, comprising:
the box body is provided with a material injection hole;
the refrigerating inner container and the freezing inner container are both arranged in the inner cavity of the box body, and a foaming flow channel is formed between the refrigerating inner container and the inner wall of the box body; the foaming flow channel at least comprises a first flow channel positioned between the refrigerating inner container and the inner wall of the box body and a second flow channel positioned between the freezing inner container and the inner wall of the box body, and the material injection hole is communicated with the second flow channel;
the air duct assembly of any one of claims 1-8 disposed within an interior cavity of the cabinet; the blocking piece extends into the space between the first flow passage and the second flow passage, and a circulation gap is formed between the extending top end of the blocking piece and the inner wall of the box body.
10. A cabinet frame as claimed in claim 9, in which the width of the flow-through gap is from 10mm to 20mm.
11. A cabinet frame as claimed in claim 9, wherein the blocking member is disposed obliquely to the first flow path direction.
12. The cabinet frame as claimed in claim 9, wherein the refrigerating inner container and the freezing inner container are arranged vertically, and the material injection hole of the foaming channel is located at the bottom of the cabinet.
13. The cabinet frame as claimed in claim 12, wherein the air duct assembly is located between the refrigerating and freezing inner containers, the blocking member extends into the foaming flow path toward the back plate of the cabinet, and the filling hole is located at the back of the cabinet.
14. A cabinet frame as claimed in claim 13, wherein the effective blocking width of the blocking member is less than the width of the back plate of the cabinet.
15. The foaming method of the refrigerator is characterized by comprising the following steps:
arranging a blocking piece outside an air duct of the refrigerator, and enabling the blocking piece to extend into a foaming flow channel of the refrigerator;
and injecting a foaming material into the foaming flow channel, and in the flowing process of the foaming material, blocking a part of the foaming material from flowing to an area with higher foaming density in the foaming flow channel by using the blocking piece.
16. The foaming method according to claim 15, wherein a connection position of the blocking member with respect to the air duct is adjusted, thereby adjusting a blocking position of the flow of the foaming material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110541301.5A CN115371337A (en) | 2021-05-18 | 2021-05-18 | Air duct assembly, box body frame and foaming method of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110541301.5A CN115371337A (en) | 2021-05-18 | 2021-05-18 | Air duct assembly, box body frame and foaming method of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115371337A true CN115371337A (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110541301.5A Pending CN115371337A (en) | 2021-05-18 | 2021-05-18 | Air duct assembly, box body frame and foaming method of refrigerator |
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| CN (1) | CN115371337A (en) |
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| CN105563725A (en) * | 2016-02-01 | 2016-05-11 | 安徽省万爱电器科技有限公司 | Refrigerator body foaming process of small single-door refrigerator |
| CN105737482A (en) * | 2016-03-15 | 2016-07-06 | 青岛海尔股份有限公司 | Refrigerator |
| CN106196861A (en) * | 2016-07-26 | 2016-12-07 | 合肥华凌股份有限公司 | Air channel structure and refrigerator |
| CN111981750A (en) * | 2019-05-24 | 2020-11-24 | 青岛海尔电冰箱有限公司 | Refrigerator and method of manufacturing the same |
| CN112140445A (en) * | 2019-06-26 | 2020-12-29 | 青岛海尔电冰箱有限公司 | Refrigerator body foaming method |
| CN112179022A (en) * | 2020-09-28 | 2021-01-05 | 海信容声(广东)冰箱有限公司 | Refrigerator with a door |
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2021
- 2021-05-18 CN CN202110541301.5A patent/CN115371337A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048468A (en) * | 2014-06-26 | 2014-09-17 | 海信（山东）冰箱有限公司 | Refrigerator |
| CN105563725A (en) * | 2016-02-01 | 2016-05-11 | 安徽省万爱电器科技有限公司 | Refrigerator body foaming process of small single-door refrigerator |
| CN105737482A (en) * | 2016-03-15 | 2016-07-06 | 青岛海尔股份有限公司 | Refrigerator |
| CN106196861A (en) * | 2016-07-26 | 2016-12-07 | 合肥华凌股份有限公司 | Air channel structure and refrigerator |
| CN111981750A (en) * | 2019-05-24 | 2020-11-24 | 青岛海尔电冰箱有限公司 | Refrigerator and method of manufacturing the same |
| CN112140445A (en) * | 2019-06-26 | 2020-12-29 | 青岛海尔电冰箱有限公司 | Refrigerator body foaming method |
| CN112179022A (en) * | 2020-09-28 | 2021-01-05 | 海信容声(广东)冰箱有限公司 | Refrigerator with a door |
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