公开(公告)号：JPH0436577A

公开(公告)日：1992-02-06

申请号：JP14007690

申请日：1990-05-31

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  TSUDA KENJI ,  YAMAMOTO HARUYOSHI

IPC: F25D23/02 ,  F25D23/08

Abstract: PURPOSE:To make it possible to prevent the penetration of dew drops on a transparent window and an outer board for a long time by forming a span adjustment spacer with soft plastics mixed with an absorbent on a door body and further installing a penetration hole to be communicated with a transparent glass sheet to a fixing frame, and compounding an absorbent into a foamed urethane insulation material. CONSTITUTION:Absorbents 10 are compounded and dispersed into a foamed urethane insulation material 8 by 1 to 20 wt.%. The absorbents include synthetic zeolite having a strong absorption with water, activated charcoal, and CaCl2 and the like. At the same time, a soft plastic material mixed with the absorbents 10 is used to form a span adjustment spacer 3 while a large number of through holes 2a are bored on a fixing frame 2. A transparent glass sheet 1, an outer periphery of the span adjustment space 3 and the insulation material 8 are communicated with each other while an opening section 6a of an inner sheet 6 is fitted into a mounting groove 2b formed in the fixing frame 2. In the door body as specified above, the moisture which tries to penetrate an enclose space 4 is absorbed by the absorbents 10 in the spacer 3. Then, the absorbent 10 dispersed in the insulation material 8 prevents the penetration of the moisture into the enclosed space 4. It is, therefore, possible to prevent the generation of dew drops in the enclosed space 4 and the outside board 5 as well.

公开(公告)号：JPH03148573A

公开(公告)日：1991-06-25

申请号：JP28416289

申请日：1989-10-31

Applicant: MATSUSHITA REFRIGERATION

Inventor： MIYAMOTO ICHIRO ,  NAKADA JUNICHI

IPC: F25D19/00

Abstract: PURPOSE:To improve rust-proofing power by applying a condensing pipe and a coupling piece with a continuous plating. CONSTITUTION:Plating 10 is applied on a condensing pipe 4 and a coupling piece 6, made of iron, in a refrigerator. According to this method, the resistance to corrosion of the condensing pipe 4 may be improved and electrolytic corrosion, readily generated on the coupling part between the condensing pipe 4 and the coupling piece 6, may be prevented.

公开(公告)号：JPH02197787A

公开(公告)日：1990-08-06

申请号：JP1812889

申请日：1989-01-27

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  MIYAMOTO ICHIRO

IPC: F25D23/08

Abstract: PURPOSE:To provide a heat insulating box body in which the whole of a space between inner and outer boxes is vacuum drawn for heat insulation by a method wherein a flange piece bent in an L-shape is mounted to an opening part, and a tile heat insulating box body comprises an outer box of a non-breathable material, a clamp part formed in a U-shape in cross section of an irreversible shape memory alloy performing a closing action at a high temperature time, and an inner box having a flange to the periphery of which a sealant is attached. CONSTITUTION:In a title heat insulating box body, during assembly, a flange piece 12, bent in an L-shape, of a non-breathable outer box 1 formed of an iron plate is securely welded at a portion 19, except a spot where a sealant 14 is arranged, to a clamp part 13 formed in a U-shape in cross section and of a shape memory alloy. Further, a peripheral flange 15, having a sealant 16, of an inner box 2 is inserted in the clamp part 13. By heating an engaging part 10 between the finished outer and inner boxes 1 and 2, the clam part 13 is restored to a determined shape, and an opening part 18 is closed. The peripheral flange 15 of the inner box 2 is clamped to secure the inner and outer boxes 1 and 2. The sealants 14 and 16 are also softened, and the engagement part 10 is completely sealed. A foamable heat insulating material of a continuous foams is injected in a space 5 between the inner and outer boxes to fill the space therewith, and thereafter, vacuum deaeration is effected to bring the space 5 into a vacuum state.

公开(公告)号：JPH02192580A

公开(公告)日：1990-07-30

申请号：JP1234789

申请日：1989-01-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  MIYAMOTO ICHIRO

IPC: F25D23/08

Abstract: PURPOSE:To improve the heat insulating property of a heat insulating box body jumpingly by a method wherein open-cell foamed heat insulating material is poured into a space between an inner case and an outer case and a Hansen's plug is attached to a pouring port to evacuate the space through the Hansen's plug. CONSTITUTION:An inner box 2, made of an iron sheet or a laminate sheet as same as an outer box 1, is engaged with the outer box 1 at an engaging part 9 while sealing with seal materials 10 to produce a space 3 between the inner and outer boxes. Open- cell foamed heat insulating material 11 is poured into the space 3 through a pouring port 4. A pouring head 5 is removed immediately after pouring and a pouring lid is attached to the pouring port 4. Subsequently, the pouring lid 7 is removed and a projected Hansen's plug 12 is inserted into the open-cell foamed heat insulating material 11 through the pouring port 4 and the space 3 is sealed by the seal material 10. A recessed Hansen's plug 12 is attached to the projected Hansen's plug 12 to evacuate gas in the open-cell foamed heat insulating material 11 by a vacuum pump 14 until the vacuum degree of 0.7 torr or lower is obtained. Next, the recessed Hansen's plug 13 is removed and a vacuum protecting lid is attached to the projected Hansen's plug 12.

公开(公告)号：JPH02103385A

公开(公告)日：1990-04-16

申请号：JP25517688

申请日：1988-10-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： MIYAMOTO ICHIRO ,  NAKADA JUNICHI

IPC: F25D23/08

Abstract: PURPOSE:To improve the heat insulating performance and make the inner casing hard to crack due to the attack by a foaming material by using an inner casing which is formed by vacuum-molding a laminated sheet of a thin polyolefin resin layer and a styrene group resin layer, and a highly heat insulating material containing a foaming agent which excels in the heat insulating performance but has a strong resin melting effect. CONSTITUTION:A heat insulated cabinet is formed with an inner casing 4 which is formed by vacuum-molding a laminated sheet of a polyolefine resin layer 7 having a thickness less than 100mum and a styrene group resin layer 6, and a heat insulating material 5 containing a foaming agent which has a strong resin melting effect. By this constitution, the resin layer 7 protects the styrene group layer 6 from the resin melting effect of the foaming agent of the highly heat insulating material 5. Because the thickness of the resin layer 7 is small, there will be no significant adverse effect on the moldability, allowing the molding of the inner casing 4 which is hard to crack, and moreover, the heat insulating performance can be improved.

公开(公告)号：JPS63286685A

公开(公告)日：1988-11-24

申请号：JP12050087

申请日：1987-05-18

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI

IPC: F25D23/08 ,  B29C39/10 ,  B29K105/04 ,  B29L31/00

公开(公告)号：JPS63259372A

公开(公告)日：1988-10-26

申请号：JP9254687

申请日：1987-04-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOTORII TOSHIO ,  SASAKI TAKAO ,  MURONO YOSHIRO ,  NAKADA JUNICHI

IPC: F25D23/08

公开(公告)号：JPS63220077A

公开(公告)日：1988-09-13

申请号：JP5456987

申请日：1987-03-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOTORII TOSHIO ,  SASAKI TAKAO ,  MURONO YOSHIRO ,  NAKADA JUNICHI

IPC: F25D23/08 ,  B29C39/10 ,  B29C39/22 ,  B29K105/04 ,  B29L31/00

公开(公告)号：JPS6359505A

公开(公告)日：1988-03-15

申请号：JP20418986

申请日：1986-08-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  SASAKI TAKAO ,  MURONO YOSHIRO ,  KOTORII TOSHIO

IPC: B29C39/10 ,  B29K105/04 ,  B29L31/00 ,  F25D23/08

Abstract: PURPOSE:To prevent cavities and voids from developing at both the end faces of a heat insulating box by delaying the foaming action in the early stage of reaction by a method wherein tertiary amine catalyst and organic acid are mixed in polyol liquid as foam insulating material. CONSTITUTION:Liquid wherein polyol liquid containing silicone foam stabilizer, flon foaming agent, tertiary amine catalyst and organic acid and isocyanate liquid are mixed is poured between an inner box and an outer box and expanded. The salt produced from the organic acid and the tertiary amine catalyst in the polyol liquid prevents the catalytic action from demonstrating at the time when the temperatures of the polyol liquid and of the isocyanate liquid are 20-30 deg.C in the early stage of reaction. The catalytic action is demonstrated by the separation of the organic acid and the tertiary amine catalyst from the salt at the time when the temperatures of the polyol liquid and of the isocyanate liquid reaches at least 50 deg.C due to the generation of heat of reaction. Consequently, the reaction can be intentionally delayed in the early stage of the reaction.

公开(公告)号：JPS631084A

公开(公告)日：1988-01-06

申请号：JP14535986

申请日：1986-06-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI

IPC: H01L35/32 ,  F25B21/02 ,  H01L35/30

Abstract: PURPOSE:To improve the productivity of a thermoelectric effect element by applying conductive adhesives onto an electric insulating film according to a pattern and holding the film by heat conductors with fins. CONSTITUTION:In a thermoelectric effect element 1, N-type semiconductors 4 and P-type semiconductors 5 are held and fixed between two metallic heat conductors 8 with fins consisting of copper, Al, iron, etc. An electric insulating film 9 composed of thin polyester, etc. is bonded with one surface of the conductor 8, the semiconductors 4 and 5 are connected electrically in series on the film 9, and adhesives 10 are applied previously onto the film 9 according to a pattern for fixing to sheets 2. The semiconductors 4 and 5 are held by the heat conductors 8 with the films 9 on which adhesives 10 are applied at that time, and pressure is applied properly, thus forming the element 1.