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    METHOD FOR MAKING HEAT INSULATED BOX
    1.
    发明专利
    METHOD FOR MAKING HEAT INSULATED BOX 失效

    公开(公告)号：JPH0493582A

    公开(公告)日：1992-03-26

    申请号：JP20999890

    申请日：1990-08-07

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA FUMIO ,  EBISAWA MAKOTO

    IPC: F25D23/06 ,  F25D23/08

    Abstract: PURPOSE:To reduce an amount of work without making any disturbance of a pitch at a pipe circulation part and without lifting the pipe circulation part by a method wherein a pipe groove is formed, a double flange composed of flanges is formed and a heat radiation pipe is inserted. CONSTITUTION:A thermal radiation pipe 2 is fixed in a pipe groove 4 by a side surface of an outer box 1, a rear flange 5, an upper end 3a of a fixing flange 3 and a side end part 3b. After this operation, an iron plate reinforcing member 10 is welded to it, a heat conducting adhesive agent 3 is applied around the heat radiation pipe 2, an inner box 11 is inserted, a foamed heat insulating material is put between both boxes and then the box is formed. Since movement of the heat radiation pipe 2 is prohibited by the fixing flange 3, it is not necessary to use a pipe floating preventive tape and further it is not necessary to use a pipe pitch fixing jig.

    METHOD OF MAKING THERMAL INSULATING BOX
    2.
    发明专利
    METHOD OF MAKING THERMAL INSULATING BOX 失效

    公开(公告)号：JPH0490484A

    公开(公告)日：1992-03-24

    申请号：JP20611290

    申请日：1990-08-02

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA FUMIO ,  ONO KOJI

    IPC: F25D23/08

    Abstract: PURPOSE:To prevent a pipe from floating by a method wherein a pipe groove is formed between a side plate and a top plate, thereafter a double-flange composed of flanges formed and then a thermal radiation pipe is fixed to the pipe groove with projections disposed at proper locations in the flange. CONSTITUTION:A pipe 6 is fixed to a pipe groove 5 with a projection 12 and an outer box 1. Thermal conducting adhesive agent 7 is applied and then an inner box 10 is assembled and uretane 9 is filled between both boxes. In this way, the pipe 6 is fixed to the pipe grooves 5 with the projection 12 of a rear flange 4, so that a pipe floating preventing tape or the like can be eliminated and further the pipe 6 is closely fitted to the thermal conducting adhesive agent 7, the outer box 1 and a front flange 2. Thermal conductivity is also improved and then a thermal radiation capability from the pipe 6 is also improved.

    PREPARATION OF HEAT INSULATING BOX BODY
    3.
    发明专利
    PREPARATION OF HEAT INSULATING BOX BODY 失效

    公开(公告)号：JPH03260584A

    公开(公告)日：1991-11-20

    申请号：JP6024890

    申请日：1990-03-12

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA FUMIO ,  NAGAMUNE TAKASHI

    IPC: F25D23/04

    Abstract: PURPOSE:To eliminate the lowering of cooling capacity due to the hole generated in a radiation pipe by fixing a reinforcing plate to an outer box by electric welding to make the outer box strong and preventing the generation of a shunt current between the reinforcing plate and the radiation pipe at the time of welding work by an insulating material. CONSTITUTION:A reinforcing plate 10 is bent into an almost horizontal U-shape and fixed by electric welding so as to cover the notch 11 formed so as to be continued to a continuation part 5c from a rear flange 5d and brought into contact with the back of the rear flange 5b of an outer box 1. The receiving plates 14a, 14b of a spot tool 14 are positioned on the side of a non-conductive film 7 and the reinforcing plate 10 and the rear flange part 5d are pressed by a positive electrode 14c and a negative electrode 14d and a current is allowed to flow through the electrodes to generate heat and the reinforcing plate 10 is welded and bonded to the rear flange 5d by the generated heat. The generation of a spark (shunt discharge) in the contact surface of a radiation pipe 8 with the reinforcing plate 10 is prevented by an insulating material and the perforation of the radiation pipe 8 is prevented and the film 7 of the outer box 1 is not melted.

    HEAT INSULATING CASING
    5.
    发明专利
    HEAT INSULATING CASING 失效

    公开(公告)号：JPH02242071A

    公开(公告)日：1990-09-26

    申请号：JP6253989

    申请日：1989-03-15

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： AOKI TAKASHI ,  YONEMURA MINORU ,  MORIKAWA FUMIO ,  NAGAMUNE TAKASHI

    IPC: F25D23/06 ,  F25D21/04

    Abstract: PURPOSE:To enable hinges and partition plates to be reliably secured to the title casing by providing an insulating material on the contact part of a heat radiating pipe with an outer case or with a reinforcing plate in the vicinity of the reinforcing plate, and by fixing the reinforcing plate to the outer case by spot welding. CONSTITUTION:A reinforcing plate 19 is welded and secured to the uncoated side of an outer case 2 made of a coated steel sheet by a one-side spot welding method and, further, an insulating material 26 is applied to a heat radiating pipe 17. Since the outer case 2 and the reinforcing plate 19 are secured to each other by electric welding, the outer case 2 is strengthened and, in addition, since the insulating material 26 is used on the contact surface of the heat radiating pipe 17 with the reinforcing plate 19, there will arise no problem such as deterioration in the cooling performance caused by an occurrence that a branched current flows to the heat radiating pipe 17 during welding work and bores holes through the wall of the heat radiating pipe 17.

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