Airtight metal pipes across inner spaces of non-Styrofoam, non-Plastic inner frame of refrigerators
In all freezers and refrigerators all have integral plastic inner frame and the refrigerator door mezzanine both are filled with injection-type Styrofoam to keep cold. The plastic inner frames and Styrofoam are both environmentally unfriendly and difficult to recycle and wasteful a lot of energy.
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This new model relates to field that injecting the Styrofoam into the plastic frame between the metal frames to make thermal insulation freezers and refrigerators.
PREVIOUS TECHNOLOGYAll freezers and refrigerators manufactured around the world have a metal shell with PVC plastic integrally injected into the five-sided inner frame and the refrigerator door inner space are filled with injection-type Styrofoam to keep cold. The plastic inner frame and foam plastic is both environmentally unfriendly and difficult to recycle.
UTILITY PATENT CONTENTThe innovative purpose of the new model is to use the metal frame interlayer of the refrigerator and the built-in vacuum airtight inner space of the refrigerator metal door. This innovation can eliminate the need to inject Styrofoam into the PVC plastic inner frame of the refrigerator for thermal insulation. It able to stainless steel fresh-keeping transportation inner and outer boxes and double-layer cover plates to replace the Styrofoam fresh-keeping cooler avoiding the environmental damage of Styrofoam which can't be recycled.
A single-door refrigerator is shown in
-
- 10 A front panel of single door refrigerator.
- 101 No-touch mezzanine inner of the refrigerator door.
- 102 A door rear panel of single door refrigerator.
- 103 The rubber bead on refrigerator door rear frame.
- 11 Five-sided external metal frame of refrigerator.
- 12 No-touch inner space between the inside and outside metal frame of the refrigerator.
- 121 The refrigerant passes from the compressor 14 through the metal pipe connecting the airtight inner space 12 and the evaporator 15.
- 122 The vaporized refrigerant passes from the condenser 15 and metal pipe connecting the airtight inner space 12 and the radiator 16.
- 123 The pressurized refrigerant passes through the airtight inner space 12 from the radiator 86 and returns through the metal pipe to the compressor 84.
- 124 The light power cord and sensing are passed through the metal pipe connecting the airtight inner space 12 and the external variable frequency power control box 171 of the refrigerator by the controller 17 in the refrigerator.
- 125 The dripping water from the condenser 15 in the refrigerator flows through the inner holding tank 151 to draw the ice water through the airtight inner space 12 to the drip evaporation tray 152.
- 126 The refrigerator outer metal frame 11 and inner metal frame 13 are welded around the front side.
- 13 Five-sided external metal frame of refrigerator.
- 14 The compressor.
- 15 The condenser.
- 151 Holding drip water in the refrigerator.
- 152 Drip evaporation tray.
- 16 The radiator.
- 17 A light and sensor of frequency conversion of controller.
- 171 A power supply box for frequency conversion.
- 18 Metal cover for top radiator of 16.
- 20 Exhaust valves.
Claims
1. A process for manufacturing an airtight metal pipes across inner spaces of non-Styrofoam, non-Plastic inner frame of refrigerators having the following characteristics:
- Between the metal door frames (10) of the refrigerator/freezer and the metal inner door penal (102), there is an airtight inner space (101) built in;
- The metal box frame and cover lid for fresh cooling/warm preservation and transportation, having an airtight inner spaces;
- The metal box frame (13) without door of the five-sided refrigerator-freezer is placed in the larger five-sided outer metal box frame (11). Between the two five-sided inner and outer box frames, there are metal pipes (121˜125) that keep out of contact with the metal frame wall and penetrate the inner and outer boxes and frames across an airtight inner spaces (12);
- The refrigerant passes through the metal pipe, and its length is the same as the connection distance between parts. It is air tightly welded between the holes passing through the metal outer frame wall of the refrigerator and freezer and the corresponding hole of the metal inner frame wall. Wherein the refrigerant of the compressor (14) is transported through the metal pipe to the condenser (15) element, to the radiator (16), which returns to the compressor (15) to complete the cycle through the metal pipe line of (121,122,123);
- The temperature controller and frequency conversion circuit (17), the control light source circuit to the control box (171) are pass through the metal pipe (124), and the inner dripping water (151) are led to the bottom evaporation tray (152) by pipe (125), which are air tightly welded of the inner spaces that is penetrated and traversed;
- The freezer zone and the multiple refrigeration zones that the said refrigerant passing through the metal pipes are included, and the airtight inner spaces are built in;
- The above mentioned airtight inner spaces in the refrigerators/freezers with heat insulation are air tightly welded to an exhaust valve (20).
Type: Application
Filed: Jun 10, 2021
Publication Date: Dec 15, 2022
Applicant: (San Francisco, CA)
Inventor: Da-Kuang Chang (Taipei)
Application Number: 17/343,796