WO2019154022A1 - 箱体的制备方法、制冷设备用箱体和制冷设备 - Google Patents

箱体的制备方法、制冷设备用箱体和制冷设备 Download PDF

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Publication number
WO2019154022A1
WO2019154022A1 PCT/CN2019/071562 CN2019071562W WO2019154022A1 WO 2019154022 A1 WO2019154022 A1 WO 2019154022A1 CN 2019071562 W CN2019071562 W CN 2019071562W WO 2019154022 A1 WO2019154022 A1 WO 2019154022A1
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WIPO (PCT)
Prior art keywords
draft tube
foaming
guiding section
tank
foaming material
Prior art date
Application number
PCT/CN2019/071562
Other languages
English (en)
French (fr)
Inventor
方凯
Original Assignee
合肥华凌股份有限公司
合肥美的电冰箱有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 合肥华凌股份有限公司, 合肥美的电冰箱有限公司, 美的集团股份有限公司 filed Critical 合肥华凌股份有限公司
Publication of WO2019154022A1 publication Critical patent/WO2019154022A1/zh

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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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • B29C44/425—Valve or nozzle constructions; Details of injection devices
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • 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
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material

Definitions

  • the present disclosure relates to the field of refrigeration equipment technology, and in particular to a method for preparing a cabinet, a cabinet for a refrigeration device, and a refrigeration device.
  • the present disclosure is intended to address at least one of the technical problems existing in the prior art. To this end, the present disclosure proposes a method for preparing a box, the method for preparing the box is simple and easy to perform, and the foaming is uniform.
  • the present disclosure also proposes a cabinet for a refrigeration apparatus having the above method.
  • the present disclosure also proposes a refrigeration apparatus.
  • a method of manufacturing a tank according to an embodiment of the first aspect of the present disclosure includes the steps of: providing a tank, a tank, and at least one draft tube, the draft tube having a feed port, a discharge port, and a plurality of a discharge hole spaced apart from each other; the case is disposed in the case to define a foaming cavity, and the draft tube is fixed to the inner wall of the case and/or the outer wall of the case, Extending the draft tube from one side wall of the tank toward the other side wall opposite thereto; injecting foam into the draft tube, the foam material entering through the feed port The discharge tube is sprayed into the foaming chamber through the discharge port and the plurality of discharge holes.
  • a portion of the foamed material is foamed into the foaming chamber through a plurality of discharge holes on the draft tube by fixing the draft tube to the inner wall of the case and/or the outer wall of the case.
  • Part of the foaming material remains in the draft tube due to viscous resistance and foams normally.
  • the strength of the flow guiding tube is reduced and squeezed during the expansion process of the foaming material, so that the foaming material can uniformly fill the foaming cavity and send out The bubble is even and the effect is good.
  • the softening point temperature of the draft tube is lower than the temperature of the foaming material, and after the foaming material is injected into the draft tube, the foaming material passes through the pre-foaming period.
  • the discharge port and the plurality of discharge holes are sprayed into the foaming cavity, and in the late stage of foaming, the foaming material in the draft tube gradually expands to break the draft tube for expansion foaming .
  • the draft tube is made of a thermoplastic material.
  • the discharge holes are evenly distributed on the pipe wall of the draft pipe.
  • the discharge hole is a circular hole, and the discharge hole has a diameter of 3 mm to 7 mm.
  • the draft tube is a non-equal-section tubular member and the cross-section of the draft tube is circular.
  • the draft tube includes: a first flow guiding section, one end of the first flow guiding section forms the feeding inlet; the second guiding section, the first One end of the two flow guiding section forms the discharge port; the third flow guiding section is connected between the first guiding section and the second guiding section, and the The diameters of a guiding section and the second guiding section are both smaller than the diameter of the third guiding section.
  • the pipe diameter of the pipe sections at both ends of the third air guiding section is smaller than the pipe diameter of the middle pipe section of the third air guiding section.
  • the diameter of the first guiding section gradually increases from the feeding port to one end of the third guiding section along a length thereof, and the diameter of the second guiding section is along the same
  • the length direction gradually increases from the discharge port to the other end of the third flow guiding section, and the diameter of the third flow guiding section gradually increases from the both ends thereof toward the middle portion along the length direction thereof.
  • the casing is provided with a mounting opening, and the mounting opening is provided with a injection joint for communicating the inlet.
  • the injection joint has a number of injection ports equal to the number of the flow tubes, and the injection ports are in one-to-one correspondence with the flow tubes.
  • the injection joint has a plurality of spaced apart injection holes, and the number of the injection holes is greater than the number of the flow tubes.
  • a cabinet for a refrigerating apparatus the tank is prepared by a method of preparing a tank according to an embodiment of the first aspect of the present disclosure, and the tank is produced by adopting the above-described preparation method without changing Existing foaming mold; no need to change the way of injection, so that the foaming is uniform, the foaming material can evenly fill the entire box, solve the problem of voiding; and the injection process has good stability, simple process, low cost, application
  • This method can reduce the development difficulty of the research and development personnel, and it is convenient to design the cabinet and the cabinet with more complicated structure.
  • a refrigerating apparatus includes a cabinet for a refrigerating apparatus according to an embodiment of the second aspect of the present disclosure.
  • the refrigerating apparatus has good heat insulating performance, is excellent in manufacturing, and has a good user experience.
  • FIG. 1 is a schematic structural view of a case before foaming according to an embodiment of the present disclosure
  • Figure 2 is a front elevational view of the structure shown in Figure 1;
  • Figure 3 is a side elevational view of the structure shown in Figure 1;
  • FIG. 4 is a schematic structural view of a draft tube according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural view of a shot joint in a viewing angle according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural view of a shot joint in another view according to an embodiment of the present disclosure.
  • Figure 7 is a front elevational view of the structure shown in Figure 5;
  • FIG. 8 is a flow chart of a method of preparing a tank according to an embodiment of the present disclosure.
  • FIG. 9 is a flow chart of a method of preparing a tank in accordance with another embodiment of the present disclosure.
  • a draft tube 30 a first draft tube 301, a second draft tube 302, and a third guide tube 303,
  • the injection joint 40 the injection port 41, the fixed disk 42, the connecting post 43, and the fixing hole 44.
  • first and second may include one or more of the features, either explicitly or implicitly.
  • a plurality of means two or more unless otherwise stated.
  • connection In the description of the present disclosure, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present disclosure can be understood in the specific circumstances by those skilled in the art.
  • a method of manufacturing a cabinet according to an embodiment of the present disclosure includes the following steps:
  • S1 providing a casing, a tank and at least one guiding tube, and the guiding tube has a feeding port, a discharging port and a plurality of discharging holes, and the plurality of discharging holes are arranged at intervals in a direction in which the guiding tube extends;
  • the box liner is disposed in the box shell, so that the foaming chamber can be defined in the box shell, the guiding tube is fixed on the inner wall of the box shell, the guiding tube can be fixed on the outer wall of the box shell, or a part of the guiding tube can be
  • the flow tube is fixed on the inner wall of the tank, and a part of the draft tube is fixed on the outer wall of the tank, so that the draft tube extends from one side wall of the tank to the other side wall opposite thereto;
  • the foaming material is injected into the flow tube, and the foaming material enters the guiding tube through the feeding port, and is sprayed into the foaming chamber through the discharging port and the plurality of discharging holes.
  • a portion of the foamed material is foamed into the foaming chamber through a plurality of discharge holes on the draft tube by fixing the draft tube to the inner wall of the case and/or the outer wall of the case.
  • Part of the foaming material remains in the draft tube due to viscous resistance and foams normally.
  • the strength of the flow guiding tube is reduced and squeezed during the expansion process of the foaming material, so that the foaming material can uniformly fill the foaming cavity and send out The bubble is even and the effect is good.
  • the draft tube 30 can be located anywhere in the foaming chamber to direct the foaming material to different locations within the foaming chamber to facilitate diffusion and distribution of the foaming material.
  • the direction and the fixed position of the draft tube 30 are placed at a position where the bubble is easy to be vacuolized, and the discharge port 32 is located at a position where the bubble is easily generated in the foaming chamber, so that the foaming material can be guided to a position that is not easy to be filled. It is ensured that the foaming material fills the entire draft tube 30 and the foaming chamber, reducing the bubble rate.
  • the softening point temperature of the draft tube 30 is lower than the temperature of the foaming material, and after the foaming material is injected into the guiding flow tube, the foaming material passes through the discharging stage.
  • the mouth and the plurality of discharge holes are sprayed into the foaming chamber, and in the late stage of foaming, the foaming material in the draft tube is gradually expanded to crush the draft tube for expansion and foaming.
  • the foaming material flows in the draft tube 30 for a certain period of time, because the softening point temperature of the draft tube 30 is lower than the temperature of the foaming material, thereby causing the strength of the guiding tube 30 to gradually decrease, and the foaming material will be
  • the flow guiding tube 30 is crushed and filled into the foaming chamber to further improve the uniformity of foaming.
  • the unheated draft tube 30 when the foaming material is just injected into the draft tube 30, the unheated draft tube 30 has a certain strength, can withstand the pressure of the foaming material injection, thereby exerting a guiding effect on the foaming material;
  • part of the foaming material is uniformly sprayed with the uniformly distributed discharge holes 33 on the draft tube 30, and some of the foamed material enters the hard-to-fill portion with the draft tube 30, and the rest
  • the foaming material remains in the draft tube 30 due to the viscous resistance, and the foaming material increases the temperature during foaming.
  • the softening point temperature of the draft tube 30 is reached, the strength of the draft tube 30 drops sharply.
  • the expansion of the foaming material is broken during the expansion process, the flow guiding tube 30 is broken and the foaming material is uniformly foamed in the casing 100, so that the tank 100 of good quality and free of voids can be obtained.
  • the draft tube 30 is made of a thermoplastic material, such as polyethylene or polypropylene.
  • the heating temperature can reach above 160°C
  • the polyethylene softening point temperature is from 125°C to 135°C
  • the polypropylene softening point temperature is from 90°C to 150°C, both of which can be foamed in the early stage of foaming.
  • the material plays a certain role of guiding, and can be melted and deformed in the later stage of the foaming process, avoiding the bubble leakage problem caused by the reflow of the foaming material and improving the uniformity of foaming.
  • the discharge holes 33 are evenly distributed on the tube wall of the draft tube 30, and after the foaming material flows into the draft tube 30, it is ensured that the foaming material can pass through the tube wall of the draft tube 30.
  • the discharge holes 33 are evenly discharged, and then the foaming material in the draft tube 30 is squeezed through the draft tube 30 during the gradual expansion process, so that the foaming material is uniformly foamed in the foaming chamber to ensure the foaming material. Fill the entire cabinet 100.
  • the discharge hole 33 is a circular hole, and the hole diameter of the discharge hole 33 is 3 mm to 7 mm, thereby ensuring that the foaming material can be discharged through the discharge hole 33, and the viscosity at the discharge hole 33 is reduced. Resistance.
  • the draft tube 30 is a non-equal-section tubular member, and the cross-section of the draft tube 30 is circular, so that a large-section guide tube 30 can be designed at a position where a large amount of foaming is required, when needed
  • the small-section guide tube 30 is designed at a position where the amount of foaming is small, and the foamed material is dispersed in the casing 100, so that the foaming is more uniform.
  • the draft tube 30 of the present disclosure may also be provided as an equal-section tubular member.
  • the draft tube 30 includes a first flow guiding section 34, a second flow guiding section 35, and a third guiding section 36.
  • One end of the first flow guiding section 34 forms a feeding port 31
  • one end of the second guiding section 35 forms a discharge port 32
  • the third guiding section 36 communicates with the first guiding section 34 and the second guiding section 35.
  • the diameters of the first guiding section 34 and the second guiding section 35 are both smaller than the diameter of the third guiding section 36.
  • the diameter of the third flow guiding section 36 at the intermediate position is large, the requirement of a large amount of foaming at the intermediate position can be satisfied, and the foaming material is buffered in the third guiding section 36, which is also convenient for the foaming material.
  • the conveying is such that the foaming material can flow from the feed port 31 to the discharge port 32.
  • the pipe diameters of the pipe sections at both ends of the third flow guiding section 36 are smaller than the pipe diameters of the middle pipe section of the third flow guiding section 36, that is, the first guiding section 34 and the first guiding section 34 and the third
  • the pipe diameter of the pipe section connected to the two guiding sections 35 is smaller than the pipe diameter of the middle pipe section of the third guiding section 36, that is, the pipe diameter of the middle pipe section of the third guiding section 36 is larger than the pipe diameter of the pipe sections of both ends, thereby avoiding the blockage of the foaming material in the third
  • the guiding section 36 affects the foaming material entering the second guiding section 35, which affects the foaming effect.
  • the diameter of the draft tube 30 and the length of the draft tube 30 should be simulated and experimentally verified according to the quality of the foaming material, the density of the foaming material and the temperature to achieve a reasonable design.
  • the diameter of the first flow guiding section 34 gradually increases from the feeding port 31 to one end of the third guiding section 36 along the length thereof, and the second guiding section 35
  • the diameter of the pipe gradually increases from the discharge port 32 to the other end of the third flow guiding section 36 along the length thereof, and the pipe diameter of the third flow guiding section 36 gradually increases from the both ends to the middle thereof along the longitudinal direction thereof, thereby
  • the foaming material can flow uniformly from the feed port 31 to the discharge port 32, preventing the foaming material from being clogged in a certain area inside the draft tube 30, affecting the uniformity of foaming.
  • the draft tube 30 is made of a polyethylene material, and the discharge tube 30 is evenly distributed with a discharge hole 33, and the discharge hole 33 is a circular hole extending along the direction of the draft tube 30, and the discharge is arranged.
  • the aperture 33 has a pore size of 5 mm, the cross section of the draft tube 30 is non-uniformly circular, the first guide section 34 has a diameter of from 20 mm to 25 mm, and the third guide section 36 is changed from 25 mm to 30 mm.
  • the second gradient section 35 is a gradient duct that is tapered from 25 mm to 20 mm, and the wall thickness of the draft tube 30 is between 0.3 and 0.8 mm, preferably 0.5 mm.
  • the unheated draft tube 30 When the foaming material has just been injected into the draft tube 30, the unheated draft tube 30 has a certain strength, can withstand the injection pressure of the foaming material, and acts as a guiding effect for the foaming material; when the foaming material is guided When flowing in the flow tube 30, the discharge holes 33 uniformly distributed on the flow guiding tube 30 uniformly discharge a part of the foamed material, and a part of the foamed material enters a portion which is difficult to be filled with the flow guiding tube 30, and most of the foaming material is The viscous resistance remains in the draft tube 30.
  • the guiding tube 30 of the polyethylene material is heated to the softening point temperature, the strength of the guiding tube 30 is drastically lowered, and the guiding tube 30 is crushed during the expansion of the foaming material, and foaming The material is uniformly foamed in the foaming chamber, and finally, the tank 100 of good quality and free of voids can be obtained.
  • the casing is provided with a mounting opening, and the mounting opening is provided with a injection joint 40 for communicating with the inlet 31, thereby guiding the flow tube 30 through the main joint 40
  • the foaming gun is used in conjunction with the injection joint 40 to perform the injection.
  • the feeding port 31 is matched with the injection joint 40, and the injection gun head is closely matched with the injection joint 40 to ensure that the injection head is not injected during the injection. Will fall, and will not affect the extraction of the injection gun head after the end of the injection.
  • the gun head drives the foaming material into the draft tube 30, and the foaming material gradually expands in the foaming chamber through the discharge hole 33 on the draft tube 30 to fill the entire foaming chamber, thereby avoiding the problem of voiding.
  • the injection joint 40 includes a fixed disc 42 and a connecting post 43 .
  • One end of the connecting post 43 is fixedly coupled to the fixing disc 42 and is used for mating with the injection gun head, and the other end of the connecting post 43 is used for guiding The flow tube 30 is mated.
  • the fixing plate 42 has a plurality of fixing holes 44.
  • the connecting post 43 is inserted into the mounting opening of the casing.
  • One side of the fixing plate 42 is adhered to the casing, and the fixing hole 44 is fixed by the screw.
  • the ground is fixed on the case.
  • the injection joint 40 has a number of injection ports 41 equal to the number of the draft tubes 30, and the injection ports 41 are in one-to-one correspondence with the draft tubes 30.
  • the diameter of each of the injection ports 41 is equal to the diameter of the correspondingly communicating draft tube 30, so that the injection port 41 can be closely coupled with the draft tube 30 to ensure stability during injection and prevent injection.
  • the draft tube 30 is separated from the injection port 41, and the injection gun can simultaneously send the foamed material into different draft tubes 30, thereby realizing one shot and multiple pipelines for injection, improving the efficiency of injection, and the structure is simple. low cost.
  • the injection joint 40 has a plurality of spaced apart injection holes, and the number of injection holes is greater than the number of the flow tubes 30. That is, the inside of the injection joint 40 can be made into a shape similar to a shower head, so that the injection joint 40 has a plurality of injection holes, the injection hole has a certain guiding effect, and the foaming material uniformly passes through the plurality of injection holes, and Spraying to different parts can make the foaming material entering the different draft tubes 30 more uniform, and the foaming in the foaming chamber is more uniform, further reducing the probability of voiding.
  • the cabinet 100 is prepared by a method of preparing the cabinet 100 according to an embodiment of the present disclosure.
  • the casing 100 is obtained by adopting the above-described preparation method, without changing the existing foaming mold; the filling method is not required to be changed, so that the foaming is uniform, and the foaming material can be uniform. It fills the whole box and solves the problem of cavitation; and the injection process has good stability, simple process and low cost.
  • the application of this method can reduce the development difficulty of R&D personnel and facilitate the design of more complicated tanks and cabinets.
  • the casing 100 includes a casing, a tank 20 and three guiding tubes 30 before foaming, and the casing is provided with a mounting opening for mounting the injection joint 40, and the tank 20 is disposed in the casing, thereby being in the box A foaming chamber is defined in the shell.
  • the three draft tubes 30 are first fixed to the outer wall of the tank 20 respectively. Specifically, the first draft tube 301 extends leftward from the front side wall of the tank 20 and then extends from the left side wall to the rear side wall. Then, the first draft tube 301 is taped; the second draft tube 302 extends downward from the front side wall of the tank 20, and then extends from the lower side wall to the rear side wall, and then the second draft tube 302 is also taped; the third draft tube 303 extends rightward from the front side wall of the tank 20, and then extends from the right side wall to the rear side wall, and then the third draft tube 303 is taped.
  • each of the draft tubes 30 has a feed port 31, a discharge port 32 and a plurality of discharge holes 33, and the plurality of discharge holes 33 are arranged at intervals along the direction in which the draft tube 30 extends, and the discharge holes 33 face away from each other.
  • the feed port 31 is located on the front side of the tank 20
  • the discharge port 32 is located on the rear side of the tank 20.
  • the discharge hole 33 has a hole diameter of 5 mm.
  • the softening point temperature of the draft tube 30 is lower than the temperature of the foam.
  • Each of the draft tubes 30 includes a first flow guiding section 34, a second flow guiding section 35, and a third flow guiding section 36.
  • One end of the first flow guiding section 34 forms a feeding port 31
  • one end of the second guiding section 35 forms a discharge port 32
  • the third guiding section 36 communicates with the first guiding section 34 and the second guiding section 35.
  • the diameter of the first flow guiding section 34 gradually increases from the feeding port 31 to one end of the third guiding section 36 along the longitudinal direction thereof, and the diameter of the second guiding section 35 is along the length direction from the discharging opening.
  • 32 gradually increases toward the other end of the third flow guiding section 36
  • the diameter of the third flow guiding section 36 gradually increases from the both ends toward the middle thereof along the length direction thereof.
  • the injection joint 40 includes a fixed disc 42 and a connecting post 43.
  • One end of the connecting post 43 is fixedly connected with the fixing disc 42 for cooperation with the injection gun head.
  • the connecting post 43 has three injection ports 41, three injections.
  • the port 41 is in one-to-one correspondence with the three draft tubes 30.
  • the fixing plate 42 has a plurality of fixing holes 44.
  • the connecting post 43 is inserted into the mounting opening of the casing.
  • One side of the fixing plate 42 is adhered to the casing, and the fixing hole 44 is fixed by the screw. It is fixed on the case to ensure that it does not fall off during filling and foaming.
  • the injection gun head starts to inject and foam the foaming chamber through the injection joint 40, and the foaming material first flows along the draft tube 30 to the discharge port 32, and partially flows during the flow.
  • the foam material is uniformly sprayed out along the discharge hole 33 uniformly distributed on the draft tube 30, and enters into the foaming chamber, and some foaming materials enter the hard-to-fill portion along with the draft tube 30, and the remaining foaming materials are viscous resistance. It stays in the draft tube 30 and will foam normally.
  • the foaming material has just been injected into the draft tube 30, and the unheated draft tube 30 has a certain strength, can withstand the injection pressure of the foaming material, and acts as a guiding effect for the foaming material;
  • the temperature reaches the softening point of the draft tube 30, the strength of the draft tube 30 drops sharply, and the draft tube 30 is squeezed during the expansion of the foamed material, and the foamed material is uniformly foamed in the foaming chamber.
  • a tank 100 of good quality and free of voids can be obtained.
  • the case 100 includes a case, a case 20, and a foam layer filled between the case and the case 20 after foaming.
  • the cabinet 100 for a refrigerating apparatus by adopting the above-described preparation method, it is not necessary to change the existing foaming mold; the filling method is not required to be changed, so that the foaming is uniform, and the foaming material can uniformly fill the entire tank.
  • the problem of cavitation is solved; and the process of injection is stable, the process is simple, and the cost is low.
  • the application of this method can reduce the development difficulty of the research and development personnel, and it is convenient to design a more complicated box and box.
  • a refrigerating apparatus includes a cabinet for a refrigerating apparatus according to an embodiment of the present disclosure.
  • the refrigerating apparatus has good heat insulating performance, is excellent in manufacturing, and has a good user experience.

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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)
  • Molding Of Porous Articles (AREA)
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Abstract

一种箱体的制备方法、制冷设备用箱体和制冷设备，制备方法包括以下步骤：提供箱壳、箱胆（20）和至少一个导流管（30）；将箱胆（20）设在箱壳内以限定出发泡腔，并将导流管（30）固定在箱壳内壁和/或箱胆（20）外壁，使导流管（30）从箱胆（20）的一个侧壁处向与其相对的另一个侧壁处延伸；向导流管（30）内注入发泡料，发泡料通过进料口进入导流管（30）内，再通过出料口（32）和多个排料孔（33）喷射到发泡腔内。根据该箱体的制备方法，部分发泡料通过导流管（30）上的多个排料孔（33）向发泡腔内发泡，部分发泡料由于黏滞阻力留在导流管（30）中并正常发泡，导流管（30）在发泡料膨胀过程中强度降低并被挤破，发泡料可以均匀的充满发泡腔，效果好。

Description

箱体的制备方法、制冷设备用箱体和制冷设备
相关申请的交叉引用
本公开基于申请号为201810130386.6，申请日为2018年2月8日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本公开作为参考。
技术领域
本公开涉及制冷设备技术领域，具体而言，涉及一种箱体的制备方法、制冷设备用箱体和制冷设备。
背景技术
随着消费者审美水平的提高，对冰箱的外形有着越来越高的要求，而对于外形结构复杂的冰箱，其制造工艺又是巨大的挑战，特别是在远离发泡注料口的角落，容易造成发泡料不能填满箱体的空泡问题，导致冰箱制造不良率上升和保温性能下降，存在改进空间。
发明内容
本申请是基于发明人对以下事实和问题的发现和认识做出的：
为了提高冰箱发泡层的保温性能，并降低发泡层空泡率，文献CN201621315922.2、CN201710167980.8中，通过增加发泡时的注料枪头数量来提高注料效率，降低空泡率，但其缺点较多，例如：结构复杂、成本高，增加了注料枪头的数量，生产工艺难度加大，难以精确的控制两枪头内黑白料混合比例相同。
文献CN201521104487.4中，通过在注料口处增加了一段刚性导流管，即相当于将注射枪头加长一段，从而对起泡液具有了一定的导向作用，然而在使泡液均匀发泡方面效果并不明显，且发泡结束后箱体内存留有导流管道，有可能出现泡液回流导致漏泡等问题。
本公开旨在至少解决现有技术中存在的技术问题之一。为此，本公开提出一种箱体的制备方法，所述箱体的制备方法简便易行，发泡均匀。
本公开还提出一种具有上述方法的制冷设备用箱体。
本公开还提出一种制冷设备。
根据本公开第一方面实施例的箱体的制备方法，包括以下步骤：提供箱壳、箱胆和 至少一个导流管，所述导流管具有进料口、出料口和多个沿其延伸方向间隔布置的排料孔；将所述箱胆设在所述箱壳内以限定出发泡腔，并将所述导流管固定在所述箱壳内壁和/或所述箱胆外壁，使所述导流管从所述箱胆的一个侧壁处向与其相对的另一个侧壁处延伸；向所述导流管内注入发泡料，所述发泡料通过所述进料口进入所述导流管内，再通过所述出料口和多个所述排料孔喷射到所述发泡腔内。
根据本公开实施例的箱体的制备方法，通过将导流管固定在箱壳内壁和/或箱胆外壁，部分发泡料通过导流管上的多个排料孔向发泡腔内发泡，部分发泡料由于黏滞阻力留在导流管中并正常发泡，导流管在发泡料膨胀过程中强度降低并被挤破，从而使得发泡料可以均匀的充满发泡腔，发泡均匀，效果好。
根据本公开的一个实施例，所述导流管的软化点温度低于所述发泡料的温度，向所述导流管注入发泡料后，在发泡前期，所述发泡料通过所述出料口和多个所述排料孔喷射到所述发泡腔内，在发泡后期，所述导流管内的发泡料逐渐膨胀以挤破所述导流管进行膨胀发泡。
可选地，所述导流管由热塑材料制成。
根据本公开实施例的箱体的制备方法，所述排料孔均布在所述导流管的管壁上。
根据本公开实施例的箱体的制备方法，所述排料孔为圆形孔，且所述排料孔的孔径为3mm-7mm。
根据本公开实施例的箱体的制备方法，所述导流管为非等截面管件且所述导流管的横截面为圆形。
根据本公开实施例的箱体的制备方法，所述导流管包括：第一导流段，所述第一导流段的一端形成所述进料口；第二导流段，所述第二导流段的一端形成所述出料口；第三导流段，所述第三导流段连通在所述第一导流段和所述第二导流段之间，且所述第一导流段和所述第二导流段的管径均小于所述第三导流段的管径。
可选地，所述第三导流段的两端管段管径小于所述第三导流段的中间管段管径。
可选地，所述第一导流段的管径沿其长度方向从所述进料口向所述第三导流段的一端逐渐增大，所述第二导流段的管径沿其长度方向从所述出料口向所述第三导流段的另一端逐渐增大，所述第三导流段的管径沿其长度方向从其两端向中部逐渐增大。
根据本公开实施例的箱体的制备方法，所述箱壳设有安装口，且所述安装口处设有用于连通所述进料口的注料接头。
可选地，所述注料接头具有与所述导流管数量相等的注料口，所述注料口与所述导流管一一对应连通。
可选地，所述注料接头具有多个间隔设置的注料孔，且所述注料孔的数量大于所述 导流管的数量。
根据本公开第二方面实施例的制冷设备用箱体，所述箱体由根据本公开第一方面实施例的箱体的制备方法制备而成，通过采用上述制备方法制得箱体，无需改变现有的发泡模具；无需改变注料方式，使得发泡均匀，发泡料可以均匀的充满整个箱体，解决了空泡问题；且注料过程稳定性好，工艺简单，成本低，应用此方法可以降低研发人员开发难度，便于设计出结构更为复杂的箱胆和箱体。
根据本公开第三方面实施例的制冷设备，包括根据本公开第二方面实施例的制冷设备用箱体，通过采用上述箱体，制冷设备的保温性能好，制造优良，用户体验好。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本公开实施例的箱体在发泡前的结构示意图；
图2是图1中所示结构的主视图；
图3是图1中所示结构的侧视图；
图4是根据本公开实施例的导流管的结构示意图；
图5是根据本公开实施例的注料接头在一个视角的结构示意图；
图6是根据本公开实施例的注料接头在另一个视角的结构示意图；
图7是图5所示结构的主视图；
图8是根据本公开一个实施例的箱体的制备方法的流程图；
图9是根据本公开另一个实施例的箱体的制备方法的流程图。
附图标记：
箱体100，
箱胆20，
导流管30，第一导流管301，第二导流管302，第三导流管303，
进料口31，出料口32，排料孔33，第一导流段34，第二导流段35，第三导流段36，
注料接头40，注料口41，固定盘42，连接柱43，固定孔44。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
下面参考图1-图9描述根据本公开实施例的箱体的制备方法。
如图1-图8所示，根据本公开一个实施例的箱体的制备方法包括以下步骤：
S1、提供箱壳、箱胆和至少一个导流管，且导流管具有进料口、出料口和多个排料孔，多个排料孔沿导流管延伸的方向间隔布置；
S2、将箱胆设置在箱壳内，从而在箱壳内可以限定出发泡腔，将导流管固定在箱壳内壁上，也可以将导流管固定在箱胆外壁，或是将部分导流管固定在箱壳内壁，部分导流管固定在箱胆外壁，使导流管从箱胆的一个侧壁处向与其相对的另一个侧壁处延伸；
S3、向导流管内注入发泡料，发泡料通过进料口进入导流管内，再通过出料口和多个排料孔喷射到发泡腔内。
根据本公开实施例的箱体的制备方法，通过将导流管固定在箱壳内壁和/或箱胆外壁，部分发泡料通过导流管上的多个排料孔向发泡腔内发泡，部分发泡料由于黏滞阻力留在导流管中并正常发泡，导流管在发泡料膨胀过程中强度降低并被挤破，从而使得发泡料可以均匀的充满发泡腔，发泡均匀，效果好。
在一些示例中，导流管30可以位于发泡腔的任意位置，从而将发泡料导向发泡腔内的不同部位，便于发泡料的扩散和分布。优选地，导流管30的走向及固定位置放置在容易空泡的部位，出料口32位于发泡腔内容易产生空泡的位置，从而可以将发泡料 导流至不易充满的位置，保证发泡料充满整个导流管30和发泡腔，减少空泡率。
如图9所示，根据本公开的一个实施例，导流管30的软化点温度低于发泡料的温度，向导流管注入发泡料后，在发泡前期，发泡料通过出料口和多个排料孔喷射到发泡腔内，在发泡后期，导流管内的发泡料逐渐膨胀以挤破导流管进行膨胀发泡。
也就是说，发泡料在导流管30内流动一定时间，由于导流管30的软化点温度低于发泡料的温度，从而导致导流管30的强度逐渐减小，发泡料会挤破导流管30、并充入发泡腔内，进一步提高发泡的均匀性。
具体地，当发泡料刚刚注射进导流管30时，未受热的导流管30具有一定的强度，可以承受发泡料注射的压力，从而对发泡料起到导流的作用；当发泡料在导流管30中流动时，部分发泡料随导流管30上均匀分布的排料孔33均匀喷出，部分发泡料随着导流管30进入难以充满的部位，其余的发泡料由于黏滞阻力留在导流管30中，发泡料在发泡时会升高温度，在达到导流管30的软化点温度时，导流管30的强度急剧下降，在发泡料的膨胀过程中被挤破，导流管30破裂消失，发泡料在箱体100内均匀发泡，从而可以得到质量良好且无空泡的箱体100。
在一些示例中，导流管30由热塑材料制成，例如可以采用聚乙烯或聚丙烯材料制成。发泡料发泡时的发热温度可达160℃以上，聚乙烯软化点温度为125℃～135℃，聚丙烯软化点温度为90℃～150℃，两者均可以在发泡前期对发泡料起到一定的导流作用，而在发泡过程后期可以融化、变形，避免了发泡料回流导致的漏泡问题，提高发泡的均匀性。
根据本公开的一个实施例，排料孔33均布在导流管30的管壁上，在发泡料流入导流管30内后，可以保证发泡料可以通过导流管30的管壁上的排料孔33均匀的排出，然后导流管30内的发泡料在逐渐膨胀过程中挤破导流管30，从而使发泡料在发泡腔内均匀发泡，保证发泡料充满整个箱体100。
根据本公开的一个实施例，排料孔33为圆形孔，且排料孔33的孔径为3mm-7mm，从而保证发泡料可以通过排料孔33排出，减少排料孔33处的黏滞阻力。
根据本公开的一个实施例，导流管30为非等截面管件，导流管30的横截面为圆形，从而可以在需要发泡量多的位置设计大截面的导流管30，在需要发泡量少的位置设计小截面的导流管30，发泡料在箱体100发散，使得发泡更加均匀。当然，本公开的导流管30还可以设置成等截面管件。
根据本公开的一个实施例，导流管30包括：第一导流段34、第二导流段35和第三导流段36。第一导流段34的一端形成进料口31，第二导流段35的一端形成出料口32，第三导流段36连通在第一导流段34和第二导流段35之间，且第一导流段34和第二导 流段35的管径均小于第三导流段36的管径。
由于中间位置的第三导流段36的管径较大，从而可以满足中间位置处发泡量大的需求，同时发泡料在第三导流段36内得到缓冲，也便于发泡料的输送，使得发泡料可以从进料口31流向出料口32。
在一些示例中，第三导流段36的两端管段管径小于第三导流段36的中间管段管径，也就是说，第三导流段36的与第一导流段34以及第二导流段35连接的管段管径小于第三导流段36的中间管段管径，即第三导流段36中间管段管径大于两端管段管径，避免了发泡料堵塞在第三导流段36，影响发泡料进入第二导流段35，影响发泡效果。其中，导流管30管径大小和导流管30的长度应该根据不同的发泡料的质量、发泡料密度和温度，进行模拟计算和实验验证，以实现合理的设计。
如图4所示，在另一些示例中，第一导流段34的管径沿其长度方向从进料口31向第三导流段36的一端逐渐增大，第二导流段35的管径沿其长度方向从出料口32向第三导流段36的另一端逐渐增大，第三导流段36的管径沿其长度方向从其两端向中部逐渐增大，从而使得发泡料可以均匀的从进料口31流向出料口32，防止发泡料堵塞在导流管30内部的某一区域，影响发泡均匀性。
在一些具体的示例中，导流管30采用聚乙烯材料制成，导流管30上均匀分布有排料孔33，排料孔33为沿导流管30延伸方向的圆形孔，排料孔33的孔径大小为5mm，导流管30的截面为非均匀圆形，第一导流段34管径为从20mm渐变为25mm的管道，第三导流段36为从25mm渐变为30mm再渐变为25mm的管道，第二导流段35是从25mm渐变为20mm的渐变管道，导流管30的管壁厚度在0.3～0.8mm之间，优选为0.5mm。
当发泡料刚刚注射进导流管30时，未受热的导流管30具有一定强度，可以承受发泡料的注射压力，并对发泡料起到导流作用；当发泡料在导流管30中流动时，导流管30上均匀分布的排料孔33将部分发泡料均匀喷出，部分发泡料随着导流管30进入难以充满的部位，大部分发泡料由于黏滞阻力留在导流管30中。由于发泡时发泡料升温，将聚乙烯材料的导流管30加热至软化点温度，导流管30的强度急剧下降，导流管30在发泡料膨胀过程中被挤破，发泡料在发泡腔内均匀发泡，最终可以得到质量良好且无空泡的箱体100。
根据本公开的一个实施例，箱壳上设有安装口，安装口处设有注料接头40，注料接头40用于连通进料口31，从而通过主料接头40向导流管30内注发泡料时，通过发泡枪与注料接头40配合进行注料。
具体地，发泡时导流管30将箱胆20夹紧，进料口31与注料接头40配合，注料枪 头与注料接头40紧密配合，以保证注料时注料枪头不会掉落，且注料结束后不会影响注料枪头的拔出。枪头将发泡料打进导流管30，发泡料通过导流管30上的排料孔33在发泡腔内逐渐膨胀充满整个发泡腔，避免了空泡问题。
在一些示例中，注料接头40包括固定盘42和连接柱43，连接柱43的一端与固定盘42固定连接，且用于与注料枪头配合，连接柱43的另一端用于与导流管30配合连接。固定盘42上具有多个固定孔44，连接柱43插接在箱壳的安装口上，固定盘42的一侧粘接在箱壳上，并通过螺钉穿过固定孔44，将固定盘42牢固地固定在箱壳上。
如图5和图6所示，在一些示例中，注料接头40具有与导流管30数量相等的注料口41，注料口41与导流管30一一对应连通。例如，每个注料口41的孔径与对应连通的导流管30管径相等，从而使得注料口41可以与导流管30紧密配合连接，保证注料时的稳定性，防止在注料过程中导流管30与注料口41脱离，注料枪可以将发泡料同时送到不同的导流管30内，实现一枪多管道注料，提高了注料效率，且结构简单，成本低。
在另一些示例中，注料接头40具有多个间隔设置的注料孔，且注料孔的数量大于导流管30的数量。即可以将注料接头40内部做成类似于淋浴喷头形状，使得注料接头40具有多个注料孔，注料孔具有一定的导向作用，发泡料均匀地经过多个注料孔，并喷向不同部位，从而可以使进入不同导流管30内的发泡料更加均匀，发泡腔内发泡更加均匀，进一步降低了空泡概率。
根据本公开实施例的制冷设备用箱体100，箱体100由根据本公开实施例的箱体100的制备方法制备而成。
根据本公开实施例的制冷设备用箱体100，通过采用上述制备方法制得箱体100，无需改变现有的发泡模具；无需改变注料方式，使得发泡均匀，发泡料可以均匀的充满整个箱体，解决了空泡问题；且注料过程稳定性好，工艺简单，成本低，应用此方法可以降低研发人员开发难度，便于设计出结构更为复杂的箱胆和箱体。
下面结合图1-图9描述根据本公开的箱体100的一个具体的实施例。
箱体100在发泡前包括箱壳、箱胆20和三个导流管30，箱壳上设有安装口，用于安装注料接头40，箱胆20设置在箱壳内，从而在箱壳内限定出发泡腔。
制备时，首先将三个导流管30分别固定在箱胆20外壁，具体地，第一导流管301从箱胆20的前侧壁向左延伸，再从左侧壁延伸至后侧壁，然后将第一导流管301用胶带粘贴上；第二导流管302从箱胆20的前侧壁向下延伸，再从下侧壁延伸至后侧壁，然后将第二导流管302也用胶带粘贴上；第三导流管303从箱胆20的前侧壁向右延伸，再从右侧壁延伸至后侧壁，然后将第三导流管303用胶带粘贴上。
其中，每个导流管30具有进料口31、出料口32和多个排料孔33，多个排料孔33沿导流管30延伸的方向间隔布置，且排料孔33朝向远离箱胆20侧壁的方向，进料口31位于箱胆20前侧，出料口32位于箱胆20后侧。排料孔33的孔径为5mm。导流管30的软化点温度低于发泡料的温度。
每个导流管30包括第一导流段34、第二导流段35和第三导流段36。第一导流段34的一端形成进料口31，第二导流段35的一端形成出料口32，第三导流段36连通在第一导流段34和第二导流段35之间，第一导流段34的管径沿其长度方向从进料口31向第三导流段36的一端逐渐增大，第二导流段35的管径沿其长度方向从出料口32向第三导流段36的另一端逐渐增大，第三导流段36的管径沿其长度方向从其两端向中部逐渐增大。
注料接头40包括固定盘42和连接柱43，连接柱43的一端与固定盘42固定连接，用于与注料枪头配合，连接柱43的具有三个注料口41，三个注料口41与三个导流管30一一对应连通。固定盘42上具有多个固定孔44，连接柱43插接在箱壳的安装口上，固定盘42的一侧粘接在箱壳上，并通过螺钉穿过固定孔44，将固定盘42牢固的固定在箱壳上，确保注料和发泡时不会脱落。
安装和固定完毕后，注料枪头通过注料接头40开始对发泡腔内进行注料和发泡，发泡料首先沿导流管30流向出料口32，在流动的过程中部分发泡料随导流管30上均匀分布的排料孔33均匀喷出，进入发泡腔内，部分发泡料随着导流管30进入难以充满的部位，其余的发泡料由于黏滞阻力留在导流管30中，并将正常发泡。
发泡料刚刚注射进导流管30，未受热的导流管30具有一定强度，可以承受发泡料的注射压力，并对发泡料起到导流作用；发泡时发泡料温度不断升高，当达到导流管30的软化点温度时，导流管30的强度急剧下降，导流管30在发泡料膨胀过程中被挤破，发泡料在发泡腔内均匀发泡，最终可以得到质量良好且无空泡的箱体100。
箱体100在发泡后包括箱壳、箱胆20和填充在箱壳与箱胆20之间的发泡层。
根据本公开实施例的制冷设备用箱体100，通过采用上述制备方法，无需改变现有的发泡模具；无需改变注料方式，使得发泡均匀，发泡料可以均匀的充满整个箱体，解决了空泡问题；且注料过程稳定性好，工艺简单，成本低，应用此方法可以降低研发人员开发难度，便于设计出结构更为复杂的箱胆和箱体。
根据本公开实施例的制冷设备，包括根据本公开实施例的制冷设备用箱体，通过采用上述箱体，制冷设备的保温性能好，制造优良，用户体验好。
根据本公开实施例的制冷设备的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (14)

  1. 一种箱体的制备方法，其特征在于，包括以下步骤：
    提供箱壳、箱胆和至少一个导流管，所述导流管具有进料口、出料口和多个沿其延伸方向间隔布置的排料孔；
    将所述箱胆设在所述箱壳内以限定出发泡腔，并将所述导流管固定在所述箱壳内壁和/或所述箱胆外壁，使所述导流管从所述箱胆的一个侧壁处向与其相对的另一个侧壁处延伸；
    向所述导流管内注入发泡料，所述发泡料通过所述进料口进入所述导流管内，再通过所述出料口和多个所述排料孔喷射到所述发泡腔内。
  2. 根据权利要求1所述的箱体的制备方法，其特征在于，所述导流管的软化点温度低于所述发泡料的温度，
    向所述导流管注入发泡料后，在发泡前期，所述发泡料通过所述出料口和多个所述排料孔喷射到所述发泡腔内，在发泡后期，所述导流管内的发泡料逐渐膨胀进行膨胀发泡。
  3. 根据权利要求1或2所述的箱体的制备方法，其特征在于，所述导流管由热塑材料制成。
  4. 根据权利要求1所述的箱体的制备方法，其特征在于，所述排料孔均布在所述导流管的管壁上。
  5. 根据权利要求1或4所述的箱体的制备方法，其特征在于，所述排料孔为圆形孔，且所述排料孔的孔径为3mm-7mm。
  6. 根据权利要求1所述的箱体的制备方法，其特征在于，所述导流管为非等截面管件且所述导流管的横截面为圆形。
  7. 根据权利要求1或6所述的箱体的制备方法，其特征在于，所述导流管包括：
    第一导流段，所述第一导流段的一端形成所述进料口；
    第二导流段，所述第二导流段的一端形成所述出料口；
    第三导流段，所述第三导流段连通在所述第一导流段和所述第二导流段之间，且所述第一导流段和所述第二导流段的管径均小于所述第三导流段的管径。
  8. 根据权利要求7所述的箱体的制备方法，其特征在于，所述第三导流段的两端管段管径小于所述第三导流段的中间管段管径。
  9. 根据权利要求7所述的箱体的制备方法，其特征在于，所述第一导流段的管径沿其长度方向从所述进料口向所述第三导流段的一端逐渐增大，所述第二导流段的管径沿 其长度方向从所述出料口向所述第三导流段的另一端逐渐增大，所述第三导流段的管径沿其长度方向从其两端向中部逐渐增大。
  10. 根据权利要求1-9中任一项所述的箱体的制备方法，其特征在于，所述箱壳设有安装口，且所述安装口处设有用于连通所述进料口的注料接头。
  11. 根据权利要求10所述的箱体的制备方法，其特征在于，所述注料接头具有与所述导流管数量相等的注料口，所述注料口与所述导流管一一对应连通。
  12. 根据权利要求11所述的箱体的制备方法，其特征在于，所述注料接头具有多个间隔设置的注料孔，且所述注料孔的数量大于所述导流管的数量。
  13. 一种制冷设备用箱体，其特征在于，所述箱体由根据权利要求1-12中任一项所述的箱体的制备方法制备而成。
  14. 一种制冷设备，其特征在于，包括根据权利要求13所述的制冷设备用箱体。
PCT/CN2019/071562 2018-02-08 2019-01-14 箱体的制备方法、制冷设备用箱体和制冷设备 WO2019154022A1 (zh)

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