CN104075525A

CN104075525A - Energy-saving frostless refrigerator

Info

Publication number: CN104075525A
Application number: CN201410323760.6A
Authority: CN
Inventors: 祖新华
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-28
Filing date: 2014-06-28
Publication date: 2014-10-01
Anticipated expiration: 2034-06-28
Also published as: CN104075525B

Abstract

The invention provides an energy-saving frostless refrigerator. An electromagnetic valve is arranged on a copper pipe. A freezing chamber and a refrigerating chamber conduct refrigeration at the same time or conduct refrigeration independently or neither the freezing chamber nor the refrigerating chamber conducts refrigeration by controlling the electromagnetic valve and a compressor to be powered on or powered off through a single-chip microcomputer AT89C51 and a hardware circuit. In the working process, no frost is generated all the time, no defrosting exists, and a large amount of electric energy can be saved.

Description

Energy-conservation frost-free refrigerator-freezer

Technical field

The present invention relates to a kind of refrigerator, it can not produce frost, can save a large amount of electric energy.

Background technology

At present; when known refrigerator work, refrigerating chamber will produce frost, has a strong impact on the refrigerating capacity of refrigerator; adopt the compartment time; shut down defrost, after defrost, restart compressor, expend a large amount of electric energy; cause the temperature of institute's stored food to raise simultaneously; the frost-free refrigerator-freezer also having is to produce after frost, adopts heater heating defrost, expends equally a large amount of electric energy.

Summary of the invention

In order to overcome existing refrigerator in the time freezing, produce frost, expend the deficiency of a large amount of electric energy, patent of the present invention provides a kind of refrigerator, and it can not produce frost extremely eventually to beginning in the time of work, does not have defrost, can save a large amount of electric energy.

Patent of the present invention solves the technical scheme that its technical problem adopts: compressor enters condenser by blast pipe the heat absorbing, filter through filter again, after entering freezer evaporator after capillary, enter refrigerator evaporator, enter compressor by air inlet pipe again, magnetic valve is installed on copper pipe, by single chip computer AT 89C51, hardware circuit control magnetic valve, the conducting of compressor or close, makes refrigerating chamber, all refrigeration or refrigerating chamber or refrigerating chamber separate refrigeration or do not freeze of refrigerating chamber meet a copper pipe A between the entrance of freezer evaporator and the entrance of refrigerator evaporator, and a copper pipe B between the entrance of refrigerator evaporator and air inlet pipe, at copper pipe A, a magnetic valve B is installed respectively on copper pipe B, magnetic valve D, in the entrance inner side of freezer evaporator, the outlet inner side of freezer evaporator, outside, the outlet outside of refrigerator evaporator, a magnetic valve A is installed respectively in the import outside of refrigerator evaporator, magnetic valve C, magnetic valve F, magnetic valve E, magnetic valve G, is controlled the conducting of magnetic valve or is closed refrigerating chamber by single chip computer AT 89C51, all refrigeration or refrigerating chamber or refrigerating chamber separate refrigeration or do not freeze of refrigerating chamber, by software delay and hardware time delay, control the operation of compressor, and 220 volts of alternating currents are by bridge rectifier rectification, resistance step-down, electric capacity, inductor filter, provides 12V DC voltage after integrated regulator voltage stabilizing, then by diode to solenoid valve, by after resistance step-down give provide+5V of single chip computer AT 89C51 voltage, after the temperature controller of refrigerating chamber, meet a light emitting diode A, photodiode A, on the copper pipe of the entrance of freezer evaporator, a light emitting diode B is fixed respectively in below, photodiode B, the output of photodiode A connects the P0.0 pin of single chip computer AT 89C51, and the output of photodiode B is by the non-P0.1 pin that connects behind the door single chip computer AT 89C51, magnetic valve A, B, C, D, E, F, the both sides of the G ground connection after a NPN triode of connecting respectively, the 3rd NPN triode is connected between 12V voltage and the colelctor electrode of second NPN triode, the 4th NPN triode is connected between the repellel and ground of first NPN triode, meets respectively the P1.0 of single-chip microcomputer AT89C51 after the base stage parallel connection of the first two NPN triode, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 pin, the P1.0 of single chip computer AT 89C51, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 pin connects the 3rd by a not gate respectively, the base stage of the 4th NPN triode, fix a negative tempperature coefficient thermistor at freezer indoor wall, when the temperature in refrigerating chamber high, thermistor resistance reduces, capacitor charging time is shortened, time delay is shortened, otherwise, delay time increases, the P1.7 pin of single chip computer AT 89C51 connects a nor gate, the output of nor gate connects the control utmost point that connects bidirectional thyristor after voltage follower by electric capacity, after Voltage Series negative tempperature coefficient thermistor, connect electric capacity, another input of nor gate connects the output of voltage follower, after bidirectional thyristor compressors in series motor, be connected in 220 volts of alternating current circuits, when there is no frost on the copper pipe of the entrance of freezer evaporator, the light that the light emitting diode B of copper pipe top sends enters photodiode B, photodiode B be output as 1 by non-be 0 input P0.1 pin behind the door, in the time having frost on copper pipe, what input P0.1 pin is 1, when the temperature controller of refrigerating chamber is connected, the light that light emitting diode A sends enters photodiode A, photodiode A is output as 1 input P0.0 pin, the temperature controller of refrigerating chamber disconnects, input P0.0 pin is 0, by single chip computer AT, 89C51 controls, as input P0.0, P0.1 pin is 1, 1, P1 is output as #F5H, bidirectional thyristor conducting, compressor operating, magnetic valve B, magnetic valve D closes, magnetic valve A, magnetic valve C, magnetic valve E, magnetic valve F, magnetic valve G conducting, refrigerating chamber, refrigerating chamber all freezes, as input P0.0, P0.1 pin is 1, 0, P1 is output as #92H, bidirectional thyristor conducting, compressor operating, magnetic valve B, all conductings of magnetic valve E, magnetic valve A, magnetic valve C, magnetic valve D, magnetic valve F, magnetic valve G closes, and refrigerating chamber does not freeze, refrigerating chamber refrigeration, as input P0.0, P0.1 pin is 0, 1, P1 is output as #8DH, bidirectional thyristor conducting, compressor operating, magnetic valve A, magnetic valve C, all conductings of magnetic valve D, magnetic valve B, magnetic valve E, magnetic valve F, magnetic valve G closes, refrigerating chamber refrigeration, refrigerating chamber does not freeze, as input P0.0, P0.1 pin is 0, 0, P1.7 is output as #0, bidirectional thyristor cut-off, and compressor stops, refrigerating chamber, refrigerating chamber does not freeze, and the cold airflow of compressor is crossed refrigerating chamber, refrigerating chamber or flow through separately refrigerating chamber or flow through separately refrigerating chamber.

The beneficial effect of patent of the present invention is, can save a large amount of electric energy, simple in structure.

Brief description of the drawings

Below in conjunction with drawings and Examples, patent of the present invention is described further.

Fig. 1 is the structure chart of patent of the present invention.

Fig. 2 is the location drawing of copper pipe A.

Fig. 3 is the control circuit figure of refrigerator.

In figure 1, compressor, 2, condenser, 3, filter, 4, capillary, 5, freezer evaporator, 6, refrigerator evaporator, 7, magnetic valve A, 8, magnetic valve B, 9, magnetic valve C, 10, magnetic valve D, 11, magnetic valve E, 12, magnetic valve F, 13, magnetic valve G, 14, commutation diode A, 15, commutation diode B, 16, commutation diode C, 17, commutation diode D, 18, electric capacity A, 19, electric capacity B, 20, capacitor C, 21, electric capacity D, 22, filter capacitor A, 23, inductance, 24, filter capacitor B, 25, integrated regulator, 26, resistance A, 27, resistance B, 28, light emitting diode B, 29, photodiode B, 30, temperature controller, 31, resistance C, 32, resistance D, 33, light emitting diode A, 34, photodiode A, 35, diode, 36, single chip computer AT 89C51,37, electric capacity E, 38, resistance E, 39, electric capacity F, 40, electric capacity G, 41, crystal oscillator, 42, NPN triode AA, 43, NPN triode AB, 44, NPN triode AC, 45, NPN triode AD, 46, NPN triode AE, 47, NPN triode AF, 48, NPN triode AG, 49, NPN triode AH, 50, NPN triode AI, 51, NPN triode AJ, 52, NPN triode AK, 53, NPN triode AL, 54, NPN triode AM, 55, NPN triode AN, 56, NPN triode A0,57, NPN triode AP, 58, NPN triode AQ, 59, NPN triode AR, 60, NPN triode AS, 61, NPN triode AT, 62, NPN triode AU, 63, NPN triode AV, 64, NPN triode AW, 65, NPN triode AX, 66, NPN triode AY, 67, NPN triode AZ, 68, NPN triode BA, 69, NPN triode BB, 70, not gate A, 71, not gate B, 72, not gate C, 73, not gate D, 74, not gate E, 75, not gate F, 76, not gate G, 77, nor gate, 78, thermistor, 79, electric capacity H, 80, voltage follower, 81, bidirectional thyristor, 82, capacitor I, 83, compressor electric motor, 84, not gate H, 85, copper pipe A, 86, copper pipe B, 87, air inlet pipe, 88, blast pipe, 89, bridge rectifier, 90, resistance F, 91, resistance G, 92, resistance H, 93, resistance I

Detailed description of the invention

In Fig. 1, compressor (1) enters condenser (2) by blast pipe (88) the heat absorbing, passing through filter (3) filters again, after entering freezer evaporator (5) after capillary (4), enter refrigerator evaporator (6), enter compressor (1) by air inlet pipe (87) again, a copper pipe B (86) between the entrance of refrigerator evaporator (6) and air inlet pipe (87), in copper pipe A (85), a magnetic valve B (8) is installed respectively on copper pipe B (86), magnetic valve D (10), in the entrance inner side of freezer evaporator (5), the outlet inner side of freezer evaporator (5), outside, the outlet outside of refrigerator evaporator (6), a magnetic valve A (7) is installed respectively in the import outside of refrigerator evaporator (6), magnetic valve C (9), magnetic valve F (12), magnetic valve E (11), magnetic valve G (13).

In Fig. 2, between the entrance of freezer evaporator (5) and the entrance of refrigerator evaporator (6), meet a copper pipe A (85), at the upper magnetic valve B (8) that installs of copper pipe A (85), in the entrance inner side of freezer evaporator (5), a magnetic valve A (7) is installed.

In Fig. 3,220 volts of alternating currents are by commutation diode A (14), commutation diode B (15), commutation diode C (16), commutation diode D (17), in commutation diode A (14), commutation diode B (15), commutation diode C (16), difference shunt capacitance A (18) between the two poles of the earth of commutation diode D (17), electric capacity B (19), capacitor C (20), electric capacity D (21) composition bridge rectifier rectification (89), resistance G (91), resistance H (92) step-down, after filtering electric capacity A (22), inductance (23), filter capacitor B (24) filtering, provides 12V DC voltage after integrated regulator (25) voltage stabilizing, then gives magnetic valve B (8) by diode (35), magnetic valve D (10), magnetic valve A (7), magnetic valve C (9), magnetic valve F (12), magnetic valve E (11), magnetic valve G (13) provides voltage, and through resistance F (90), step-down provides 5V voltage to single chip computer AT 89C51 (36), after the temperature controller (30) of refrigerating chamber, meets a light emitting diode A (33), photodiode A (34), light emitting diode A (33), photodiode A (34) the resistance C (31) that connects respectively, resistance D (32) ground connection, on the copper pipe of the entrance of freezer evaporator (5), a light emitting diode B (28) is fixed respectively in below, photodiode B (29), light emitting diode B (28), photodiode B (29) is series resistance (26) respectively, ground connection after resistance (27), the output of photodiode A (34) connects the P0.0 pin of single chip computer AT 89C51 (36), the output of photodiode B (27) is by connecting the P0.1 pin of single chip computer AT 89C51 (36), magnetic valve A (7) after not gate H (84), magnetic valve B (8), magnetic valve C (9), magnetic valve D (10), magnetic valve E (11), magnetic valve F (12), NPN triode AA (42) and NPN triode AB (43) connect respectively on the both sides of magnetic valve G (13), NPN triode AE (46) and NPN triode AF (47), NPN triode AI (50) and NPN triode AJ (51), NPN triode AM (54) and NPN triode AN (55), NPN triode AQ (58) and NPN triode AR (59), NPN triode AU (62) and NPN triode AV (63), ground connection after NPN triode AY (66) and NPN triode AZ (67), NPN triode AC (44), NPN triode AG (48), NPN triode AK (52), NPN triode A0 (56), NPN triode AS (60), NPN triode AW (64), NPN triode BA (68) is connected on respectively 12V voltage and NPN triode AB (43), NPN triode AF (47), NPN triode AJ (51), NPN triode AN (55), NPN triode AR (59), NPN triode AV (63), between the colelctor electrode of NPN triode AZ (67), NPN triode AD (45), NPN triode AH (49), NPN triode AL (53), NPN triode AP (57), NPN triode AT (61), NPN triode AX (65), NPN triode BB (69) is connected on respectively NPN triode AA (42), NPN triode AE (46), NPN triode AI (50), NPN triode AM (54), NPN triode AQ (58), NPN triode AU (62), between the repellel and ground of NPN triode AY (66), NPN triode AA (42) and NPN tri-utmost point AB (43), NPN triode AE (46) and NPN triode AF (47), NPN triode AI (50) and NPN triode AJ (51), NPN triode AM (54) and NPN triode AN (55), NPN triode AQ (58) and NPN triode AR (59), NPN triode AU (62) and NPN triode AV (63), after the base stage parallel connection of NPN triode AY (66) and NPN triode AZ (67), meet respectively the P1.0 of single-chip microcomputer AT89C51 (36), P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 pin, the P1.0 of single chip computer AT 89C51 (36), P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 pin divides another by a not gate A (70), not gate B (71), not gate C (72), not gate D (73), not gate E (74), not gate F (75), not gate G (76) connects NPN triode AC (44) and NPN triode AD (45), NPN triode AG (48) and NPN triode AH (49), NPN triode AK (52) and NPN triode AL (53), NPN triode A0 (56) and NPN triode AP (57), NPN triode AS (60) and NPN triode AT (61), NPN triode AW (64) and NPN triode AX (65), the base stage of NPN triode BA (68) and NPN triode BB (69), the P1.7 pin of single chip computer AT 89C51 (36) connects a nor gate (77), the output of nor gate (77) connects the control utmost point that connects bidirectional thyristor (81) after voltage follower (80) by an electric capacity H (79), after 12V Voltage Series negative tempperature coefficient thermistor (78), meet electric capacity H (79), another input of nor gate (77) connects the output of voltage follower (80), after bidirectional thyristor (81) compressors in series motor (83), be connected in 220 volts of alternating current circuits, when there is no frost on the copper pipe of the entrance of freezer evaporator (5), the light that the light emitting diode B (28) of copper pipe top sends enters photodiode B (29), photodiode B (29) is output as 1 by after not gate H (84) being 0 input P0.1 pin, in the time having frost on copper pipe, what input P0.1 pin is 1, when the temperature controller (30) of refrigerating chamber is connected, the light that light emitting diode A (33) sends enters photodiode A (34), photodiode A (34) is output as 1 input P0.0 pin, the temperature controller (30) of refrigerating chamber disconnects, input P0.0 pin is 0, control by single chip computer AT 89C51 (36), as input P0.0, P0.1 pin is 1, 1, P1 is output as #F5H, bidirectional thyristor (81) conducting, compressor electric motor (83) operation, magnetic valve B (8), magnetic valve D (10) closes, magnetic valve A (7), magnetic valve C (9), magnetic valve E (11), magnetic valve F (12), magnetic valve G (13) opens, freezer evaporator (5), refrigerator evaporator (6) all freezes, as input P0.0, P0.1 pin is 1, 0, P1 is output as #92H, bidirectional thyristor (81) conducting, compressor electric motor (83) operation, magnetic valve B (8), magnetic valve E (11) opens, magnetic valve A (7), magnetic valve C (9), magnetic valve D (10), magnetic valve F (12), magnetic valve G (13) closes, and freezer evaporator (5) does not freeze, refrigerator evaporator (6) refrigeration, as input P0.0, P0.1 pin is 0, 1, P1 is output as #8DH, bidirectional thyristor (81) conducting, compressor electric motor (83) operation, magnetic valve A (7), magnetic valve C (9), magnetic valve D (10) closes, magnetic valve B (8), magnetic valve E (11), magnetic valve F (12), magnetic valve G (13) closes, freezer evaporator (5) refrigeration, refrigerator evaporator (6) does not freeze, as input P0.0, P0.1 pin is 0, 0, P1.7 is output as #0, bidirectional thyristor (81) cut-off, and compressor electric motor (83) stops, freezer evaporator (5), refrigerator evaporator (6) does not freeze, and the cold airflow of compressor is crossed freezer evaporator (5), refrigerator evaporator (6) or flow through separately freezer evaporator (5) or flow through separately refrigerator evaporator (6), by programmable device in burned follow procedure single chip computer AT 89C51 (36):

Claims

1. an energy-conservation frost-free refrigerator-freezer, it is characterized in that: magnetic valve is installed on copper pipe, conducting by single chip computer AT 89C51, hardware circuit control magnetic valve, compressor or close, makes all refrigeration or refrigerating chamber or refrigerating chamber separate refrigeration or do not freeze of refrigerating chamber, refrigerating chamber.

2. energy-conservation frost-free refrigerator-freezer according to claim 1, it is characterized in that: between the entrance of freezer evaporator and the entrance of refrigerator evaporator, meet a copper pipe A, a copper pipe B between the entrance of refrigerator evaporator and air inlet pipe, at copper pipe A, a magnetic valve B is installed respectively on copper pipe B, magnetic valve D, in the entrance inner side of freezer evaporator, the outlet inner side of freezer evaporator, outside, the outlet outside of refrigerator evaporator, a magnetic valve A is installed respectively in the import outside of refrigerator evaporator, magnetic valve C, magnetic valve F, magnetic valve E, magnetic valve G, control magnetic valve by single chip computer AT 89C51, the conducting of compressor or close, refrigerating chamber, all refrigeration or refrigerating chamber or refrigerating chamber separate refrigeration or do not freeze of refrigerating chamber, by software delay and hardware time delay, control the operation of compressor.

3. energy-conservation frost-free refrigerator-freezer according to claim 1, is characterized in that: 220 volts of alternating currents are by bridge rectifier rectification, resistance step-down, electric capacity, inductor filter, provides 12V DC voltage after integrated regulator voltage stabilizing, then by diode to solenoid valve, to provide+5V of single chip computer AT 89C51 voltage, after the temperature controller of refrigerating chamber, meet a light emitting diode A by resistance step-down, photodiode A, on the copper pipe of the entrance of freezer evaporator, a light emitting diode B is fixed respectively in below, photodiode B, the output of photodiode A connects the P0.0 pin of single chip computer AT 89C51, and the output of photodiode B is by the non-P0.1 pin that connects behind the door single chip computer AT 89C51, magnetic valve A, B, C, D, E, F, the both sides of the G ground connection after a NPN triode of connecting respectively, the 3rd NPN triode is connected between voltage and the colelctor electrode of second NPN triode, the 4th NPN triode is connected between the repellel and ground of first NPN triode, meets respectively the P1.0 of single-chip microcomputer AT89C51 after the base stage parallel connection of the first two NPN triode, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 pin, the P1.0 of single chip computer AT 89C51, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 pin connects the 3rd by a not gate respectively, the base stage of the 4th NPN triode, fix a negative tempperature coefficient thermistor at freezer indoor wall, when the temperature in refrigerating chamber high, thermistor resistance reduces, capacitor charging time is shortened, time delay is shortened, otherwise, delay time increases, the P1.7 pin of single chip computer AT 89C51 connects a nor gate, and the output of nor gate connects the control utmost point that connects bidirectional thyristor after voltage follower by an electric capacity, after Voltage Series negative tempperature coefficient thermistor, connect electric capacity, another input of nor gate connects the output of voltage follower, after bidirectional thyristor compressors in series motor, is connected in 220 volts of alternating current circuits.

4. energy-conservation frost-free refrigerator-freezer according to claim 1, it is characterized in that: when there is no frost on the copper pipe of the entrance of freezer evaporator, the light that the light emitting diode B of copper pipe top sends enters photodiode B, photodiode B be output as 1 by non-be 0 input P0.1 pin behind the door, in the time having frost on copper pipe, what input P0.1 pin is 1, when the temperature controller of refrigerating chamber is connected, the light that light emitting diode A sends enters photodiode A, photodiode A is output as 1 input P0.0 pin, and the temperature controller of refrigerating chamber disconnects, and input P0.0 pin is 0, by single chip computer AT, 89C51 controls, as input P0.0, P0.1 pin is 1, 1, P1 is output as #F5H, bidirectional thyristor conducting, compressor operating, magnetic valve B, magnetic valve D closes, magnetic valve A, magnetic valve C, magnetic valve E, magnetic valve F, magnetic valve G conducting, refrigerating chamber, refrigerating chamber all freezes, as input P0.0, P0.1 pin is 1, 0, P1 is output as #92H, bidirectional thyristor conducting, compressor operating, magnetic valve B, all conductings of magnetic valve E, magnetic valve A, magnetic valve C, magnetic valve D, magnetic valve F, magnetic valve G closes, and refrigerating chamber does not freeze, refrigerating chamber refrigeration, as input P0.0, P0.1 pin is 0, 1, P1 is output as #8DH, bidirectional thyristor conducting, compressor operating, magnetic valve A, magnetic valve C, all conductings of magnetic valve D, magnetic valve B, magnetic valve E, magnetic valve F, magnetic valve G closes, refrigerating chamber refrigeration, refrigerating chamber does not freeze, as input P0.0, P0.1 pin is 0, 0, P1.7 is output as #0, bidirectional thyristor cut-off, and compressor stops, refrigerating chamber, refrigerating chamber does not freeze, and the cold airflow of compressor is crossed refrigerating chamber, refrigerating chamber or flow through separately refrigerating chamber or flow through separately refrigerating chamber.