公开(公告)号：JPH04184062A

公开(公告)日：1992-07-01

申请号：JP30747090

申请日：1990-11-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKANO AKIRA ,  SHIMOMURA NOBUO ,  KAMITSUJI TOSHIO ,  UMEOKA IKUTOMO

IPC: F25D19/00

Abstract: PURPOSE:To simplify active control and enhance silencer efficiency by installing a compressor in the center of a machine room which is designed in rectangular shape and arranged to cancel standing waves of sound generated in the room and installing a sound receiver separated from a sound generator and a radiation opening as for as possible. CONSTITUTION:A machine room 12 is closed except for radiation openings 17a and 18b, showing a rectangular space where microphone 19, which serves as a sound receiver, is mounted on the opposite side of the radiation openings 17a and 18a against a compressor 13 installed in the center of the machine room 12 while a speaker 21 which serves as a sound generator is mounted and supported at a spot near the radiation openings 17a and 18a located at the depth of the machine room 12. The sound receiver 19 is separated from the sound generator 21 and the radiation openings 17a and 18a as for as possible. As a result, the noise in the machine room 12 is turned into one dimensional plane traveling wave, which is detected by the microphone 19 and converted into an electric signal. At the same time, a pre-generated sound wave signal is transmitted from a wave-form generator 20 so that is may be interfered with the frequency noise of a target by means of a speaker 21 so as to silence noise.

公开(公告)号：JPH0443249A

公开(公告)日：1992-02-13

申请号：JP15212790

申请日：1990-06-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMOMURA NOBUO ,  NODA TOSHINORI

IPC: F24F11/02

Abstract: PURPOSE:To enable execution of ideal comfortable air conditioning wherein an uncomfortable feeling due to air is prevented from production and the head is kept cool and the feet warm by a method wherein cooling and heating are selected according to an open air temperature, the discharge ports of the upper and lower parts of an indoor machine are automatically switched, and the temperature of a living area is indirectly or radially regulated. CONSTITUTION:When an open air temperature is detected by an open air detecting means 25 and exceeds 20 deg.C, it is decided that cooling operation is effected. A fan 18 is run forward, air flows upward and flows through a heat exchanger 4. Cooled air is discharged upward through an upper discharge port 16. After cold air cools a living area, it is sucked through an opening 23 and flows through a hollow part 22 of a double floor 21 and sucked through a lower discharge port 17. Meanwhile, when an open air temperature is detected by the open air detecting means 25 and is below 20 deg.C, it is decided that heating operation is effected. The fan 18 is reversed, hot air is discharged through the lower discharge port 17 and flows through the hollow part 22 of the double floor 21 and discharged through the opening 23. Hot air discharged through the opening 23 is sucked through the upper discharge port 16 as it heats a room 2. Thereafter, air heated by a heat exchanger 4 is discharged through the lower discharge port 17 again with the aid of the fan 18.

公开(公告)号：JPH03294727A

公开(公告)日：1991-12-25

申请号：JP9577190

申请日：1990-04-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMOMURA NOBUO ,  NODA TOSHINORI ,  KITAYAMA HIROSHI ,  NAKAGAWA NOBUHIRO

IPC: F24F1/00

Abstract: PURPOSE:To quickly raise the room temperature up to the set temperature at start-up and improve the heating efficiency by a method wherein warm air is distributed to an auxiliary air outlet which openes toward a room and an air flow path provided at the end of a double floor by a air blow distribution device,and portion of warm air is recirculated to a heat exchanger through a recirculation port by recirculation air distribution device for re-heat exchanging. CONSTITUTION:An impeller 28 is revolved at the start-up of heating operation, and the warm air heated by a heat exchanger 27 flows downward. Then, a first damper 32 is driven so as to distribute the warm air to a lower air outlet 31 and an air path 33. A second damper 43 is driven to induce a portion of the warm air into a space above the heat exchanger 40, where heat exchanging takes place again. This operation is repeated to raise the warm air up to a high temperature, and the high temperature warm air is blown from a lower air outlet 31, passes through a lower space 36 and is blown out from an air blow port 37 to heat a residential area 24 from below. Simultaneously, the residential area 24 is heated from above by the high temperature air blown from an auxiliary air blown port 34 so that the room temperature approaches the set temperature quickly.

公开(公告)号：JPH03294033A

公开(公告)日：1991-12-25

申请号：JP9576790

申请日：1990-04-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMOMURA NOBUO

IPC: B21C37/22 ,  B21D53/08 ,  F28F1/40

Abstract: PURPOSE:To improve the heat exchange capacity by expanding a heat exchanger tube in a state that grooves of a rugged shape are eliminated temporarily by a temperature variation and the inside surface of the heat exchanger tube is almost flattened, and allowing a heat exchanger fin and the heat exchanger tube to adhere closely to each other. CONSTITUTION:Heat exchanger fins are arranged in parallel at a prescribed interval, and gas is allowed to flow between them. A heat exchanger tube 11 is inserted vertically into this heat exchanger fin. The heat exchanger tube 11 is constituted of a shape memory alloy or a shape memory resin 15 which is subjected to reversible transformation in accordance with a temperature variation. Also, grooves 12, 13 of a rugged shape are formed in the heat exchanger tube 11. Subsequently, in a state that the grooves 12, 13 of a rugged shape are eliminated temporarily by a temperature variation and the inside surface of the heat exchanger tube 11 is almost flatted, the heat exchanger tube 11 is expanded, and the heat exchanger fin and the heat exchanger tube 11 are allowed to adhere closely to each other. In such a way, a heat transfer coefft. of the inside of the tube being equal to a single tube can be secured.

公开(公告)号：JPH0331620A

公开(公告)日：1991-02-12

申请号：JP16596789

申请日：1989-06-28

Applicant: MATSUSHITA REFRIGERATION

Inventor： NODA TOSHINORI ,  KITAYAMA HIROSHI ,  SHIMOMURA NOBUO ,  NAKAGAWA NOBUHIRO

IPC: F24F1/00 ,  F24F13/02 ,  F24F13/068

Abstract: PURPOSE:To make the indoor temperature distribution ideal with more warmth around the lower part of the body than the upper part by providing a means for switching the outlet for air for switching between an upper outlet and a lower outlet according to the operation made of heating or cooling, by forming an opening in the floor through a double floor, by which the void in the double floor communicates with the room, and by forming a plurality of opening in the ceiling, which air opened through the ceiling board and by which the ceiling chamber communicates with the room. CONSTITUTION:An indoor machine 19, which permits the ejection of air to be switched according to heating or cooling, is installed in such a manner as to place the upper outlet 28 inside the ceiling chamber 16; the indoor machine 19 is also connected to the void 14 formed in a double floor. In the ceiling board 2 a plurality of ceiling openings 31 are formed as passages by which the ceiling chamber 16 communicates with the room 1; in the double floor 5 a floor opening 15 is formed as a passage by which the void 14 communicates with the room 1. With this constitution in heating, warm air is ejected from the floor opening 15, which s formed at an end of the double floor 5, that is, outside the living space 6, and sucked through the ceiling openings 31 in the ceiling board 2, thus effecting heating of the room 1 by circulating of ward air, whereas, in cooling, cool air is uniformly ejected from the ceiling openings in the ceiling board and allowed to fall at very low speed. Thus an ideal temperature distribution giving more warmth to the lower part of the body than the upper part can be achieved.

公开(公告)号：JPH0313745A

公开(公告)日：1991-01-22

申请号：JP14900889

申请日：1989-06-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMOMURA NOBUO ,  NODA TOSHINORI ,  KITAYAMA HIROSHI

IPC: F24F1/00

Abstract: PURPOSE:To improve the comfortability of a thermal environment by forming a ventilating duct communicating with a conditioned air supply and having a highly heat conductive upper portion, forming a plurality of blowout openings for letting a duct space and a room communicate with each other in the upper portion of the ventilating duct and providing the rear of the lower portion of the back of a chair with an opening. CONSTITUTION:When a plurality of heating blowout openings 10, an opening 11 and a ventilating duct 9 are opened and a cooling blowout opening 6 is closed in heating, the conditioned air from a wind path 2 is blown out from a plurality of the heating blowout openings 10 and the opening 11 via the ventilating duct 9 without blowing in a ventilating path 3. At this time, a foot heating is conducted by a warm and ultra-soft wind. Further, heating the highly heat conductive upper portion 12 of the ventilating duct 9, a radiant heat from the upper portion 12 of the duct 9 acts as a floor heater to perform a foot heating in a working area. Thus, a comfortable heating condition is formed without the fact that a warm wind blows against the face of an office worker as conventional, enabling the comfortability of a thermal environment to be improved.

公开(公告)号：JPH02103331A

公开(公告)日：1990-04-16

申请号：JP25517288

申请日：1988-10-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMOMURA NOBUO ,  NODA TOSHINORI ,  KITAYAMA HIROSHI

IPC: F24F11/02 ,  F24F13/15

Abstract: PURPOSE:To improve the temperature distribution and enhance the efficiency by keeping the blow-off angle in horizontal state only for a specified time under control when an integrated value of the operation time turns into a preset time. CONSTITUTION:During rise operation, such as initial starting time of operation, the angle of louvers 12a and 12b is arranged to be larger so that temperature- controlled air may be discharged directly in dwelling quarters and its temperature may be promptly brought near a preset value. When the temperature of a room 14 approaches the preset value, high temperature air starts settling around the ceiling. This time is decided by an operation time integration means 19 while the louvers 12a and 12b are driven by blow-off angle change over means 20a and 20b so that the blow-off angle may be kept horizontal. An attempt to control the temperature in dwelling quarters forces the air circulation to be carried out definitely, which equalizes the indoor temperature distribution and hence improves the efficiency.

公开(公告)号：JPH0282062A

公开(公告)日：1990-03-22

申请号：JP23395588

申请日：1988-09-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： HATTA HIROSHI ,  SHIMOMURA NOBUO

IPC: F25B13/00

Abstract: PURPOSE:To control easily the temperature of a blowdown air at low cost and with reduced space by installing a refrigerant super heat control means for a suction pipe of a compressor which is designed to control so as to obtain a lower valve during a heating operation and increase the opening of a pressure reducing device when a refrigerant super heat exceeds the upper limit. CONSTITUTION:A refrigerant superheat detection means 15 is installed to a suction pipe 10 of a compressor 1 while a blowdown air temperature detection means 14 is installed to a blowdown port of an indoor heat exchanger 6. The refrigerant superheat control means 15 which is designed to control the refrigerant superheat of the suction pipe 10, controls the temperature of blowdown air so that it may be lowered than a preset value by changing the opening of a pressure reducing device 5 and controls the refrigerant superheat of the suction pipe of the compressor 1 so that it may be reduced as well. Moreover, during heating operation, this control device controls the temperature so that it may be higher than the preset value. When the refrigerant superheat of the suction pipe 10 of the compressor 1 is higher than the preset value, including cooling operation, this control device controls the refrigerant superheat of the suction pipe 10 of the compressor 1 so that it may be higher and controls the superheat so that it may be lower during heating operation. when the refrigerant superheat exceeds the upper limit of the preset value, the opening of the pressure reducing device 5 is enlarged. It is, therefore, possible to control the temperature of blowdown air of indoor equipment at low cost and with reduced space.