公开(公告)号：JPH07305922A

公开(公告)日：1995-11-21

申请号：JP9726494

申请日：1994-05-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU

IPC: F25B43/00

Abstract: PURPOSE:To reduce the wet vapor suction quantity of refrigerator in an accumulator by bending a pipe inserted to the accumulator provided at an evaporator outlet by shrinking. CONSTITUTION:A shrunk tube 15 is inserted into an accumulator 14, and provided at the end of the pipe of the outlet of an evaporator 7. Excess liquid refrigerant in the evaporator 7 tends to be scattered toward the wall of the accumulator 14 by the tube 15, and wet vapor suction can be effectively prevented. Even if the bending of the tube 15 is increased, it can be inserted into the accumulator 14. Thus, the pipe 15 of the outlet of the evaporator 7 inserted into the accumulator 14 is shrunk. Accordingly, since the liquid refrigerant is discharged toward the wall of the accumulator 14, the wet vapor suction can be effectively suppressed. Therefore, subcooling due to the liquid refrigerant in a capillary tube is eliminated, the generation of noise due to the bursting sound of refrigerant can be prevented, and the damage of the compressor due to the wet vapor suction can be prevented.

公开(公告)号：JP2003139454A

公开(公告)日：2003-05-14

申请号：JP2001332224

申请日：2001-10-30

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU ,  TADA YOSHITAKA ,  OOSHIMA ATSUHIRO ,  TAKEDA JUN

IPC: F25D17/06 ,  F25D11/00 ,  F25D17/08 ,  F25D29/00

Abstract: PROBLEM TO BE SOLVED: To hold an appropriate temperature of each storage compartment in a refrigerator whose compressor is ON/OFF-controlled on the basis of a refrigeration compartment temperature sensor. SOLUTION: The refrigerator 10, whose compressor 22 is controlled on the basis of the refrigeration compartment temperature sensor 19, arranges a cold air adjusting member 17 for adjusting a cold air quantity in a cold air passage 16 defined behind a refrigeration compartment 11, and controls the operation of the compressor 22 and varies the rotating speed of a cooler fan 15 on the basis of the refrigeration compartment temperature sensor 19, to thus maintain appropriate cooling performance especially of the refrigeration compartment.

公开(公告)号：JPH1038430A

公开(公告)日：1998-02-13

申请号：JP19723596

申请日：1996-07-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU

IPC: F25D11/00 ,  F25B1/00

Abstract: PROBLEM TO BE SOLVED: To mitigate the load on a compressor without a bad influence on stored foods by stopping an air fan when the outdoor temperature is high. SOLUTION: When a defrosting completion sensor 32 detects a temperature higher than a set temperature immediately after a power is turned on and a condenser temperature sensor 27 detects a temperature DC of not less than an upper limit set value DCmax after a specified period of time has elapsed since the power is turned on, a small capacity running capacitor 28 is switched over to a large capacity running capacitor 29 for a predetermined period of time. Thereby, as the rotative speed of a PSC fan motor 26 is increased and the performance of a machine room radiator is improved, a rise in the delivery pressure of a compressor 4 is moderated and the load on the compressor 4 is mitigated.

公开(公告)号：JPH08303929A

公开(公告)日：1996-11-22

申请号：JP11425995

申请日：1995-05-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU ,  YAMAJI NAOYO

IPC: F25D17/06 ,  F25D11/02

Abstract: PURPOSE: To shorten a period of time for the returning to specified temperatures of a freezer chamber and refrigerator chamber by a method wherein when a defrosting completion-detecting means detects a temperature which is a set temperature or higher at the time of turning-on of the power, the operation of a blowing fan is stopped for a previously set period of time only when the defrosting completion-detecting means detects a condensation temperature sensor upper limit set temperature or higher after a specified period of time has passed. CONSTITUTION: When a detected temperature of a defrosting completion-detecting means 9 right after the start of operations of a compressor 4 and blowing fan 7 is a set value or higher at the time of turning on of a power source, i.e., when it is detected that the outside air temperature is high, and a cooling is not done yet, a judgement whether a detected temperature of a condenser temperature sensor 24 is an upper limit set value or higher or not is performed after a specified period of time has passed after the detection. Then, when the detected temperature is the upper limit set value or higher, i.e., under a state wherein an input load to the compressor is too large, power is prevented from being connected to the blowing fan 7, and the blowing fan is made to stand by until a previously set period of time passes. Then, after the specified period of time has passed, the power connection to the blowing fan 7 is resumed, and the control is transferred to a normal control routine.

公开(公告)号：JPH07260292A

公开(公告)日：1995-10-13

申请号：JP5181194

申请日：1994-03-23

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU ,  OUGIICHI KATSUYOSHI

IPC: F25B1/00 ,  F25B13/00 ,  F25B43/00

Abstract: PURPOSE:To prevent a liquid back of refrigerant at an accumulator arranged at an outlet port of an evaporator in a cooling system and to prevent noise due to explosion sound of refrigerant. CONSTITUTION:A pipe at an outlet port of an evaporator 7 inserted from a lower part into an accumulator 14 is bent gradually and a pipe end is set such that a part near a side surface of the accumulator 14 is elongated more than that a far end part.

公开(公告)号：JPH10311654A

公开(公告)日：1998-11-24

申请号：JP12194697

申请日：1997-05-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU

IPC: F25D17/08

Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator in which the easy use and housing characteristic of a vegetable chamber with increased frequency of its use are improved as a result of increased consumption of vegetables due to the healthy tendency in recent years. SOLUTION: A refrigerator comprises a refrigerating chamber 25 in an upper part, a freezing chamber 27 in a lower part and a vegetable chamber 31 in a central part. The cooling air duct of the vegetable chamber 31 is formed by connecting a ventilating duct 46 provided on the upper surface of a cover member 39 with which a vegetable vessel 33 is covered and communicating with a part of a discharge duct to the refrigerating chamber 25 and a low temperature chamber 30, a circulating duct 48 formed on the outer periphery of the vegetable vessel 33, a refrigerating chamber communicating duct and a low temperature communicating duct through which a return duct 51 communicating with a cooler 35 from the interior surface of the vegetable chamber communicates with the inlet duct and the return duct of the refrigerating chamber and the low temperature chamber. Thus, vegetables whose frequency of use is high can be stored in an easily used central part and a storage capability can be also improved. While the temperature distribution of the vegetable vessel 33 is improved the cooling capacity of the vegetable chamber 31 can be rationally ensured.

公开(公告)号：JPH1038418A

公开(公告)日：1998-02-13

申请号：JP19723796

申请日：1996-07-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： IWAKI MASAMITSU ,  ARAKAWA TOSHIKAZU

IPC: F25B43/00

Abstract: PROBLEM TO BE SOLVED: To restrict the amount of return of a liquid refrigerant residing in an accumulator and improve the returning property of freezer oil by inserting one end of a suction pipe into an outlet part of the accumulator of an evaporator outlet, and disposing a longitudinally elongated slit in the insertion part. SOLUTION: A hole 16 is formed in a piping 10 inserted into an inlet part of an accumulator 7, and a slit 15 elongated in the direction of pipe length is provided in an insertion part of a suction pipe inserted into an outlet part of the accumulator 7. The direction of a cutout in the slit 15 is taken to be an opposite side of the direction of bending of the piping 10 inserted into the inlet part of the accumulator 7. A liquid refrigerant entering the accumulator 7 collides a pipe wall of the insertion part of the pipe in which the slit 15 is provided, and resides on a lower part of the accumulator 7. Since freezer oil has higher viscosity compared with a liquid refrigerant, the liquid refrigerant adheres to the wall surface of the accumulator 7 and return from the elongated slit 15 along the wall surface.