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公开(公告)号：JPS62175590A
公开(公告)日：1987-08-01
申请号：JP1518986
申请日：1986-01-27
Applicant: MATSUSHITA REFRIGERATION , MATSUSHITA ELECTRIC IND CO LTD
Inventor： KATO KAORU , TANNO SATOSHI , AOYAMA SHIGEO , ADACHI MASAAKI , TANAKA HIROYOSHI , TSUDA YOSHIYUKI
IPC: F28F1/32
Abstract: PURPOSE:To improve heat transfer rate by a method wherein both front and rear surfaces of a plate fin is provided with a multitude of louver type raised- slotted parts at an interval between heat transfer tubes and the sides thereof are slanted with respect to airflow. CONSTITUTION:Boundary layer leading edge effect, precluding the development of temperature boundary layer, is contrived by louver type raised-slotted parts 11a-11f. Further, the sides 11g'-11e' of the raised-slotted parts are formed so as to be slanted with respect to the inflow direction of the airflow B, therefore, the airflow B collides against said sides and generates eddies whereby the improvement of heat transfer performance due to the promotion of turbulent flow may be contrived. On the other hand, the airflow B flows along the raised- slotted parts and the sides thereof and flows into the back stream side of a heat transfer tube 13 whereby dead water areas 14a, 14b at the back stream side of the heat transfer tubes 13 are reduced remarkably and heat transfer performance may be improved. The boundary layer leading edge effect, the turbulent flow promoting effect and the dead water area reducing effect may be introduced and heat transfer rate may be improved markedly.
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公开(公告)号：JPS61272594A
公开(公告)日：1986-12-02
申请号：JP11244585
申请日：1985-05-24
Applicant: MATSUSHITA ELECTRIC IND CO LTD , MATSUSHITA REFRIGERATION
Inventor： TANAKA HIROYOSHI , ADACHI MASAAKI , TSUDA YOSHIYUKI , ANDO TOMOAKI , NISHIWAKI FUMITOSHI , AOYAMA SHIGEO
Abstract: PURPOSE:To improve the heat transfer coefficient of a flat fin and to obtain a compact, high-performance heat exchanger, by penetrating and coupling a plurality of heat transfer pipe groups into a plurality of fins, making the pitch between the heat transfer pipe groups larger than the distance between the neighboring heat transfer pipes, and partially overlapping the heat transfer pipes. CONSTITUTION:Refrigerant is circulated in copper pipes 8a and 8b. The heat is sequentially transferred to a fin collar 9 and a fin 10 from the copper pipe 8. The heat is exchanged with air 11, which flows from the front side. The copper pipes 8 are arranged so that the copper pipe 8b is overlapped partially with a projected plane 12 of the copper pipe 8a on the upstream side as shown in relationship between the copper pipes 8a and 8b. The pitch (b) between the copper pipe groups is larger than the distance (c) between the neighboring copper pipes. Namely, the projected plane of any of the copper pipes 8 on the upstream side is overlapped with the copper pipe on the downstream side. Therefore the distance between the copper pipes forms a slant line with respect to the air stream and becomes larger than the distance in a grid matrix arrangement. Therefore water drops down excellently. The stagnant area of water appears over the approximately entire region on the downstream side of the copper pipes in the grid arrangement. But in this arrangement of the copper pipes, said stagnant area is markedly reduced.
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公开(公告)号：JPS60238665A
公开(公告)日：1985-11-27
申请号：JP9587284
申请日：1984-05-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： TSUDA YOSHIYUKI , YONEDA HIROSHI
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公开(公告)号：JPS6091173A
公开(公告)日：1985-05-22
申请号：JP19942583
申请日：1983-10-25
Applicant: MATSUSHITA REFRIGERATION
Inventor： YONEDA HIROSHI , TSUDA YOSHIYUKI
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公开(公告)号：JP2002130883A
公开(公告)日：2002-05-09
申请号：JP2000320625
申请日：2000-10-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： TSUDA YOSHIYUKI , ONISHI ICHIRO , KIDA TAKUMI , OHASHI YOSHINORI , ASADA MASAHARU
Abstract: PROBLEM TO BE SOLVED: To provide an automatic ice making machine and a refrigerator having the automatic ice making machine capable of accommodating for making and storing a plurality of kinds of ice. SOLUTION: A first ice detecting lever 15a and a second ice detecting lever 15b for separately detecting an amount of ice stored from a driving device 13 are arranged in respect to an ice-storing container 14 provided with segments 14a, 14b for separately storing ices separated from a first ice making pan 11 and a second ice-making pan 12, thereby carrying out an ice making operation and an ice removing or separating operation for each of the ice making pans 11, 12 in an independent manner, resulting in that an amount of ice can be independently detected for each of the segments 14a, 14b so as to supplement a lack of ice.
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Patent Agency Ranking
公开(公告)号：JP2000264996A
公开(公告)日：2000-09-26
申请号：JP6638699
申请日：1999-03-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： YUASA AKIKO , TSUDA YOSHIYUKI , NAKAMOTO HIDEO
Abstract: PROBLEM TO BE SOLVED: To obtain a heat-insulator and a heat-insulating casing, having excellent heat-insulating properties by filling the interior of cell with a volatile foaming agent having a low heat conductivity of vapor, which are obtained by adsorbing and removing carbon dioxide gas in the interior of the cell in the foamed heat-insulator by a hydroxide of an alkali metal or an alkaline earth metal, and further removing the water generated by the side reaction of the adsorbing reaction of the carbon dioxide gas by a water-absorbing material covered with a resin film. SOLUTION: This foamed heat-insulator 4 is constituted of a foamed polyurethane resin composition having cells which include a carbonic acid salt 7 of an alkali metal or an alkaline earth metal formed by reacting a hydroxide of the alkali metal or the alkaline earth metal with carbon dioxide gas, and a water-absorbing material 10 composed of a water-absorbing material 8 containing the water and covered with a resin film 9, both dispersed therein, and which are filled with a volatile foaming agent and a part or the whole of which are communicated.
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公开(公告)号：JPH09302123A
公开(公告)日：1997-11-25
申请号：JP11455396
申请日：1996-05-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： TSUDA YOSHIYUKI , KOMURA AKIKO
IPC: C08J9/02
Abstract: PROBLEM TO BE SOLVED: To obtain the subject heat insulting material excellent in heat insulating performances, capable of rapidly adsorbing and removing a carbon dioxide gas in cells in a short time, comprising a foamed polyurethane resin composition having closed cells. SOLUTION: This foamed polyurethane resin composition comprises a foamed polyurethane resin composition having closed cells, has a built-in carbon dioxide gas adsorbent obtained by covering at least one of an alkali metal carbonate and an alkaline earth metal carbonate and a water-retaining solid composed of at least one of an inorganic salt and a metal salt whose hydrate has efflorescence with a resin film and contains a volatile blowing agent in the closed cells. A polyol, a foam stabilizer, a catalyst, water, the volatile blowing agent and a polyisocyanate are mixed with the carbon dioxide gas adsorbent obtained by coating a carbon dioxide gas adsorbing solid composed of at least one of an alkali metal hydroxide and an alkaline earth metal hydroxide and the water-retaining solid with the resin film, expanded and passed through a step, in which the polyurethane resin composition containing a carbon dioxide gas generated by the reaction between water and a polyisocyanate and the volatile blowing agent in the closed cell is formed, to give the objective heat insulating material.
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公开(公告)号：JPH08200937A
公开(公告)日：1996-08-09
申请号：JP907395
申请日：1995-01-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： AMAYOSHI TOMONAO , UEKADO KAZUTO , TSUDA YOSHIYUKI , NAKAMOTO HIDEO , TAKUSHIMA TSUKASA
Abstract: PURPOSE: To improve foaming heat insulating performance by integrating a carbon dioxide adsorbent being foamed into a hard urethane foam to remove carbon dioxide in the hard urethane foam by adsorption. CONSTITUTION: In a carbon dioxide adsorbent 1, calcium hydroxide is impregnated with a 0.01mol. equivalence of moisture per the calcium hydroxide and a vinyl acetate resin is formed as film by a wet type spray coating. A premixing component and an isocyanate component are mixed and stirred up using a high pressure foaming machine with a specified number of blending parts and injected into a box body hollow part 5 made up of an inner box 3 and an outer box 4 from a delivery head 2 through an injection port 6. The carbon dioxide adsorbent 1 is arranged previously at a box body flange part 7 below the injection port 6 and material delivered from the delivery head 2 entrains the carbon dioxide adsorbent 1 to fill the box body hollow part 5 being mixing integral. The urethane foam 7 filled is hardened with the passage of time to obtain a heat insulating box body.
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公开(公告)号：JPH08198996A
公开(公告)日：1996-08-06
申请号：JP1175095
申请日：1995-01-27
Applicant: MATSUSHITA REFRIGERATION
Inventor： TSUDA YOSHIYUKI , UEKADO KAZUTO , NAKAMOTO HIDEO , AMAYOSHI TOMONAO
Abstract: PURPOSE: To obtain a foamed insulating material which adsorbs only carbon dioxide and has heat-insulating performance improved by mixing a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a carbon dioxide adsorbent coated with an organic coating agent and a foaming agent such as hydrocarbon and foaming the mixture. CONSTITUTION: A polyol such as an aromatic amine polyether polyol, an organic polyisocyanate, a foam stabilizer, a catalyst, a carbon dioxide adsorbent coated with an organic coating agent such as a methacrylate coating agent on its surface (zeolite), and a foaming agent containing at least one of hydrocarbon such as pentane or cyclopentane are admixed and heat-foamed to give this foamed insulating material, for example, an insulating box, as the carbon dioxide adsorbent adsorbs only carbon dioxide without adsorption of moisture whereby the insulating performance is improved without damage in foaming efficiency of the foam products.
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公开(公告)号：JPH07292149A
公开(公告)日：1995-11-07
申请号：JP8827394
申请日：1994-04-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAMOTO HIDEO , UEKADO KAZUTO , TSUDA YOSHIYUKI , AMAYOSHI TOMONAO
Abstract: PURPOSE:To obtain a foamed heat-insulating material excellent in uniformness of foam, environmental protection, heat-insulating property, etc., and useful for refrigerators, freezing chambers, etc., by mixing and stirring an organic polyisocyanate with a foam stabilizer, a catalyst, a specific polyol and a specific foaming agent and foaming and molding the mixture. CONSTITUTION:This foamed heat-insulating material is obtained by mixing and stirring (A) an organic polyisocyanate such as diphenylmethane diisocyanate with (B) a polyol component containing 5-30% OH component having a molecular structure of the formula [(n)>=2] (e.g. diethylene glycol), (C) a foam stabilizer, (D) a catalyst and (E) a foaming agent containing 1,1,1,2,3,3-hexafluoropropane and foaming and molding the mixture.
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