CN104075525B - Energy-conservation frost-free refrigerator-freezer - Google Patents
Energy-conservation frost-free refrigerator-freezer Download PDFInfo
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- CN104075525B CN104075525B CN201410323760.6A CN201410323760A CN104075525B CN 104075525 B CN104075525 B CN 104075525B CN 201410323760 A CN201410323760 A CN 201410323760A CN 104075525 B CN104075525 B CN 104075525B
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- electromagnetic valve
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- npn audion
- refrigerating chamber
- cold room
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Abstract
A kind of energy-conservation frost-free refrigerator-freezer, it is installation electromagnetic valve on copper pipe, electromagnetic valve, being switched on or off of compressor is controlled by AT89C51 system, hardware circuit, refrigerating chamber, cold room is made all to freeze or refrigerating chamber or cold room separate refrigeration or do not freeze, operationally, to beginning to eventually all without producing frost, there is not defrost, a large amount of electric energy can be saved.
Description
Technical field
The present invention relates to a kind of electric refrigerator, it will not produce frost, can save a large amount of electric energy.
Background technology
At present, during known refrigerator operation, refrigerating chamber frost to be produced, have a strong impact on the refrigerating capacity of electric refrigerator, adopt
Use the compartment time, shut down defrost, reset itself after defrost, expend a large amount of electric energy, also result in the temperature liter of stored food
Height, the frost-free refrigerator-freezer also having is after producing frost, uses heater heating defrost, expends a large amount of electric energy equally.
Summary of the invention
In order to overcome existing electric refrigerator when refrigeration, producing frost, expend the deficiency of a large amount of electric energy, patent of the present invention carries
Having supplied a kind of electric refrigerator, operationally to beginning to eventually all without producing frost, there is not defrost, can save a large amount of electric energy in it.
Patent of the present invention solves the technical scheme is that compressor of its technical problem and passes through exhaustor the heat absorbed
Amount enters condenser, then filters through filter, enters refrigerator evaporator, then lead to after capillary tube after entering freezer evaporator
Cross air inlet pipe and enter compressor, copper pipe is installed electromagnetic valve, control electromagnetic valve, pressure by AT89C51 system, hardware circuit
Being switched on or off of contracting machine, makes refrigerating chamber, cold room all freeze or refrigerating chamber or cold room separate refrigeration or do not make
Cold, in the entrance of freezer evaporator and an indirect copper pipe A of the entrance of refrigerator evaporator, entering at refrigerator evaporator
A copper pipe B between mouth and air inlet pipe, is respectively mounted an electromagnetic valve B, electromagnetic valve D on copper pipe A, copper pipe B, steams at refrigerating chamber
Send out the inlet inside of device, freezer evaporator outlet inside, outside, refrigerator evaporator outlet outside, cold room evaporation
It is respectively mounted an electromagnetic valve A, electromagnetic valve C, electromagnetic valve F, electromagnetic valve E, electromagnetic valve G outside the import of device, passes through single-chip microcomputer
AT89C51 controls being switched on or off of electromagnetic valve, and refrigerating chamber, cold room all freeze or refrigerating chamber or cold room separate refrigeration
Or not freezing, by software delay and hardware time delay, control the operation of compressor, 220 volts of alternating currents pass through bridge rectifier
Device rectification, resistance blood pressure lowering, electric capacity, inductor filter, 12V DC voltage is provided after integrated regulator voltage stabilizing, then is given by diode
Solenoid valve, by providing+5V voltage to AT89C51 system after resistance blood pressure lowering, the temperature controller at cold room is followed by one
Light emitting diode A, light sensitive diode A, the copper pipe upper and lower at the entrance of freezer evaporator fixes a light-emitting diodes respectively
Pipe B, light sensitive diode B, the output of light sensitive diode A connects the P0.0 foot of AT89C51 system, the output of light sensitive diode B
By the non-P0.1 foot connecting AT89C51 system behind the door, connect a NPN respectively on the both sides of electromagnetic valve A, B, C, D, E, F, G
Ground connection after audion, the 3rd NPN audion is connected between the colelctor electrode of 12V voltage and second NPN audion, the 4th
NPN audion is connected between repellel and the ground of first NPN audion, after the base stage parallel connection of the first two NPN audion respectively
Connect P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 foot of AT89C51 system, the P1.0 of AT89C51 system,
P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 foot connects the base of the 3rd, the 4th NPN audion respectively by a not gate
Pole, fixes a negative tempperature coefficient thermistor at freezer indoor wall, when the temperature in refrigerating chamber is high, and critesistor resistance subtracts
Little, capacitor charging time is shortened, delay decrease, otherwise, delay time increases, and the P1.7 foot of AT89C51 system connects one
Individual nor gate, the output of nor gate connects voltage follower by an electric capacity and is followed by the control pole of bidirectional thyristor, voltage string
Connection negative tempperature coefficient thermistor is followed by electric capacity, and another input of nor gate connects the outfan of voltage follower, two-way
Thyristors in series compressor electric motor is followed by 220 volts of alternating current circuits, when not having ice on the copper pipe of the entrance of freezer evaporator
Frost, light entrance light sensitive diode B, light sensitive diode B that the light emitting diode B above copper pipe sends are output as 1 and pass through not gate
After be 0 input P0.1 foot, when there being frost on copper pipe, input P0.1 foot for 1, when the temperature controller of cold room is connected, luminous two
The light that pole pipe A sends enters light sensitive diode A, light sensitive diode A and is output as 1 input P0.0 foot, and the temperature controller of cold room breaks
Opening, input P0.0 foot is 0, by AT89C51 system control, when input P0.0, P0.1 foot is 1,1, and P1 is output as #F5H, double
To turn on thyristors, compressor operating, electromagnetic valve B, electromagnetic valve D close, electromagnetic valve A, electromagnetic valve C, electromagnetic valve E, electromagnetic valve
F, electromagnetic valve G turn on, and refrigerating chamber, cold room all freeze, when input P0.0, P0.1 foot is 1,0, and P1 is output as #92H, two-way crystalline substance
Brake tube turns on, compressor operating, and electromagnetic valve B, electromagnetic valve E turn on, electromagnetic valve A, electromagnetic valve C, electromagnetic valve D, electromagnetic valve F, electricity
Magnet valve G closes, and refrigerating chamber does not freezes, refrigeration chamber, when input P0.0, P0.1 foot is 0,1, and P1 is output as #8DH, two-way crystalline substance
Brake tube turns on, compressor operating, and electromagnetic valve A, electromagnetic valve C, electromagnetic valve D turn on, electromagnetic valve B, electromagnetic valve E, electromagnetic valve F, electricity
Magnet valve G closes, and refrigerating chamber refrigeration, cold room do not freeze, when input P0.0, P0.1 foot is 0,0, and P1.7 is output as #0, two-way crystalline substance
Brake tube ends, and compressor stops, and refrigerating chamber, cold room do not freeze, and the cold airflow of compressor crosses refrigerating chamber, cold room or list
Solely flow through refrigerating chamber or individually flow through cold room.
Patent of the present invention provides the benefit that, can save a large amount of electric energy, simple in construction.
Accompanying drawing explanation
With embodiment, patent of the present invention is described further below in conjunction with the accompanying drawings.
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 electric refrigerator.
In figure 1, compressor, 2, condenser, 3, filter, 4, capillary tube, 5, freezer evaporator, 6, cold room evaporation
Device, 7, electromagnetic valve A, 8, electromagnetic valve B, 9, electromagnetic valve C, 10, electromagnetic valve D, 11, electromagnetic valve E, 12, electromagnetic valve F, 13, electromagnetic 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, electric capacity 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, light sensitive diode B, 30, temperature controller, 31, resistance C, 32, resistance D, 33, luminous two
Pole pipe A, 34, light sensitive diode A, 35, diode, 36, AT89C51 system, 37, electric capacity E, 38, resistance E, 39, electric capacity F,
40, electric capacity G, 41, crystal oscillator, 42, NPN audion AA, 43, NPN audion AB, 44, NPN audion AC, 45, NPN audion AD,
46, NPN audion AE, 47, NPN audion AF, 48, NPN audion AG, 49, NPN audion AH, 50, NPN audion AI,
51, NPN audion AJ, 52, NPN audion AK, 53, NPN audion AL, 54, NPN audion AM, 55, NPN audion AN,
56, NPN audion A0,57, NPN audion AP, 58, NPN audion AQ, 59, NPN audion AR, 60, NPN audion AS,
61, NPN audion AT, 62, NPN audion AU, 63, NPN audion AV, 64, NPN audion AW, 65, NPN audion AX,
66, NPN audion AY, 67, NPN audion AZ, 68, NPN audion BA, 69, NPN audion 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, critesistor, 79, electric capacity
H, 80, voltage follower, 81, bidirectional thyristor, 82, electric capacity I, 83, compressor electric motor, 84, not gate H, 85, copper pipe A, 86, copper
Pipe B, 87, air inlet pipe, 88, exhaustor, 89, bridge rectifier, 90, resistance F, 91, resistance G, 92, resistance H, 93, resistance I
Detailed description of the invention
In FIG, compressor (1) enters condenser (2) by exhaustor (88) the heat absorbed, then through filter
(3) filtering, capillary tube (4) enters freezer evaporator (5) afterwards and enters refrigerator evaporator (6) afterwards, then by air inlet pipe (87)
Entering compressor (1), a copper pipe B (86) between the entrance and air inlet pipe (87) of refrigerator evaporator (6), at copper pipe A
(85), it is respectively mounted an electromagnetic valve B (8), electromagnetic valve D (10), in the entrance of freezer evaporator (5) on copper pipe B (86)
Side, freezer evaporator (5) outlet inside, outside, refrigerator evaporator (6) outlet outside, refrigerator evaporator (6)
An electromagnetic valve A (7), electromagnetic valve C (9), electromagnetic valve F (12), electromagnetic valve E (11), electromagnetic valve G it is respectively mounted outside import
(13)。
In fig. 2, at the entrance of freezer evaporator (5) and an indirect copper pipe A of the entrance of refrigerator evaporator (6)
(85), copper pipe A (85) one electromagnetic valve B (8) of upper installation, the inlet inside at freezer evaporator (5) installs an electromagnetism
Valve A (7).
In figure 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), rectification two
Between the two poles of the earth of pole pipe D (17), respectively shunt capacitance A (18), electric capacity B (19), electric capacity C (20), electric capacity D (21) composition bridge-type are whole
Stream device rectification (89), resistance G (91), resistance H (92) blood pressure lowering, after filtering electric capacity A (22), inductance (23), filter capacitor B (24)
Filtering, provides 12V DC voltage, then gives electromagnetic valve B (8), electromagnetic valve D by diode (35) after integrated regulator (25) voltage stabilizing
(10), electromagnetic valve A (7), electromagnetic valve C (9), electromagnetic valve F (12), electromagnetic valve E (11), electromagnetic valve G (13) provide voltage, Jing Guo electricity
Resistance F (90) blood pressure lowering provides 5V voltage to AT89C51 system (36), and the temperature controller (30) at cold room is followed by a light-emitting diodes
Pipe A (33), light sensitive diode A (34), light emitting diode A (33), light sensitive diode A (34) connect respectively a resistance C (31),
Resistance D (32) ground connection, the copper pipe upper and lower at the entrance of freezer evaporator (5) fixes a light emitting diode B respectively
(28), light sensitive diode B (29), light emitting diode B (28), light sensitive diode B (29) series resistance (26), resistance (27) respectively
Rear ground connection, the output of light sensitive diode A (34) connects the P0.0 foot of AT89C51 system (36), and light sensitive diode B's (27) is defeated
Go out the P0.1 foot being connected AT89C51 system (36) by not gate H (84) afterwards, electromagnetic valve A (7), electromagnetic valve B (8), electromagnetic valve C
(9), connect NPN audion AA respectively electromagnetic valve D (10), electromagnetic valve E (11), electromagnetic valve F (12), the both sides of electromagnetic valve G (13)
And NPN audion AB (43), NPN audion AE (46) and NPN audion AF (47), NPN audion AI (50) and NPN tri-(42)
Pole pipe AJ (51), NPN audion AM (54) and NPN audion AN (55), NPN audion AQ (58) and NPN audion AR (59),
NPN audion AU (62) and NPN audion AV (63), NPN audion AY (66) and NPN audion AZ (67) ground connection afterwards, NPN tri-
Pole pipe AC (44), NPN audion AG (48), NPN audion AK (52), NPN audion A0 (56), NPN audion AS (60),
NPN audion AW (64), NPN audion BA (68) are connected on 12V voltage and NPN audion AB (43), NPN audion AF respectively
(47), NPN audion AJ (51), NPN audion AN (55), NPN audion AR (59), NPN audion AV (63), NPN tri-pole
Between the colelctor electrode of pipe AZ (67), NPN audion AD (45), NPN audion AH (49), NPN audion AL (53), NPN tri-pole
Pipe AP (57), NPN audion AT (61), NPN audion AX (65), NPN audion BB (69) are connected on NPN audion AA respectively
(42), NPN audion AE (46), NPN audion AI (50), NPN audion AM (54), NPN audion AQ (58), NPN tri-pole
Pipe AU (62), NPN audion AY (66) repellel and ground between, NPN audion AA (42) and NPN tri-pole AB (43), NPN tri-
Pole pipe AE (46) and NPN audion AF (47), NPN audion AI (50) and NPN audion AJ (51), NPN audion AM (54)
With NPN audion AN (55), NPN audion AQ (58) and NPN audion AR (59), NPN audion AU (62) and NPN audion
AT89C51 system (36) is connect respectively after the base stage parallel connection of AV (63), NPN audion AY (66) and NPN audion AZ (67)
P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 foot, the P1.0 of AT89C51 system (36), P1.1, P1.2, P1.3,
P1.4, P1.5, P1.6 foot divides another by not gate A (70), not gate B (71), not gate C (72), not gate D (73), a not gate E
(74), not gate F (75), not gate G (76) connect NPN audion AC (44) and NPN audion AD (45), NPN audion AG (48)
With NPN audion AH (49), NPN audion AK (52) and NPN audion AL (53), NPN audion A0 (56) and NPN audion
AP (57), NPN audion AS (60) and NPN audion AT (61), NPN audion AW (64) and NPN audion AX (65), NPN
Audion BA (68) and the base stage of NPN audion BB (69), the P1.7 foot of AT89C51 system (36) connects a nor gate
(77), the output of nor gate (77) is followed by bidirectional thyristor (81) by an electric capacity H (79) connection voltage follower (80)
Controlling pole, 12V Voltage Series negative tempperature coefficient thermistor (78) is followed by electric capacity H (79), another input of nor gate (77)
End connects the outfan of voltage follower (80), and bidirectional thyristor (81) compressors in series motor (83) is followed by 220 volts of exchanges
In circuit, when not having frost on the copper pipe of the entrance of freezer evaporator (5), the light emitting diode B (28) above copper pipe sends
Light enter light sensitive diode B (29), light sensitive diode B (29) is output as 1 by being 0 input P0.1 foot after not gate H (84),
When there being frost on copper pipe, input P0.1 foot for 1, when cold room temperature controller (30) connect, light emitting diode A (33) sends
Light enter light sensitive diode A (34), light sensitive diode A (34) is output as 1 input P0.0 foot, the temperature controller (30) of cold room
Disconnecting, input P0.0 foot is 0, is controlled by AT89C51 system (36), when input P0.0, P0.1 foot is 1,1, and P1 is output as #
F5H, bidirectional thyristor (81) turns on, and compressor electric motor (83) runs, and electromagnetic valve B (8), electromagnetic valve D (10) close, electromagnetic valve
A (7), electromagnetic valve C (9), electromagnetic valve E (11), electromagnetic valve F (12), electromagnetic valve G (13) open, freezer evaporator (5), cold preservation
Room vaporizer (6) all freezes, when input P0.0, P0.1 foot is 1,0, and P1 is output as #92H, and bidirectional thyristor (81) turns on, compression
Dynamo-electric machine (83) is run, and electromagnetic valve B (8), electromagnetic valve E (11) open, electromagnetic valve A (7), electromagnetic valve C (9), electromagnetic valve D
(10), electromagnetic valve F (12), electromagnetic valve G (13) close, freezer evaporator (5) does not freezes, refrigerator evaporator (6) refrigeration, when
Input P0.0, P0.1 foot is 0,1, and P1 is output as #8DH, and bidirectional thyristor (81) turns on, and compressor electric motor (83) runs, electromagnetism
Valve A (7), electromagnetic valve C (9), electromagnetic valve D (10) close, electromagnetic valve B (8), electromagnetic valve E (11), electromagnetic valve F (12), electromagnetic valve
G (13) closes, and freezer evaporator (5) refrigeration, refrigerator evaporator (6) do not freeze, when input P0.0, P0.1 foot is 0,0,
P1.7 is output as #0, and bidirectional thyristor (81) ends, and compressor electric motor (83) stops, and freezer evaporator (5), cold room evaporate
Device (6) does not freezes, and the cold airflow of compressor is crossed freezer evaporator (5), refrigerator evaporator (6) or individually flows through freezing
Room vaporizer (5) or individually flow through refrigerator evaporator (6), by programmable device burned for follow procedure AT89C51 system
(36) in:
Claims (3)
1. an energy-conservation frost-free refrigerator-freezer, is characterized in that: install electromagnetic valve on copper pipe, by AT89C51 system, hardware
Circuit controling electromagnetic valve, being switched on or off of compressor, make refrigerating chamber, cold room all freeze or refrigerating chamber or cold room list
Solely refrigeration or do not freeze, 220 volts of alternating currents by bridge rectifier rectification, resistance blood pressure lowering, electric capacity, inductor filter, integrated
12V DC voltage is provided after manostat voltage stabilizing, then by diode to solenoid valve, by resistance blood pressure lowering to single-chip microcomputer
AT89C51 provides+5V voltage, and the temperature controller at cold room is followed by a light emitting diode A, light sensitive diode A, steams at refrigerating chamber
The copper pipe upper and lower of the entrance sending out device fixes a light emitting diode B, light sensitive diode B, the output of light sensitive diode A respectively
Connecting the P0.0 foot of AT89C51 system, the output of light sensitive diode B is by the non-P0.1 connecting AT89C51 system behind the door
Foot, the both sides of electromagnetic valve A, B, C, D, E, F, G connect ground connection after a NPN audion respectively, and the 3rd NPN audion is connected on electricity
Press between the colelctor electrode of second NPN audion, the 4th NPN audion be connected on first NPN audion repellel and
Between ground, connect respectively after the base stage parallel connection of the first two NPN audion the P1.0 of AT89C51 system, P1.1, P1.2, P1.3,
P1.4, P1.5, P1.6 foot, P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 foot of AT89C51 system passes through respectively
One not gate connects the base stage of the 3rd, the 4th NPN audion, fixes a negative temperature coefficient thermistor power at freezer indoor wall
Resistance, when the temperature in refrigerating chamber is high, and critesistor resistance reduces, shortens capacitor charging time, delay decrease, otherwise, time delay
Time increases, and the P1.7 foot of AT89C51 system connects a nor gate, and the output of nor gate connects voltage by an electric capacity
Follower is followed by the control pole of bidirectional thyristor, and Voltage Series negative tempperature coefficient thermistor is followed by electric capacity, another of nor gate
Individual input connects the outfan of voltage follower, and bidirectional thyristor compressors in series motor is followed by 220 volts of alternating current circuits.
Energy-conservation frost-free refrigerator-freezer the most according to claim 1, is characterized in that: in entrance and the cold preservation of freezer evaporator
An indirect copper pipe A of the entrance of room vaporizer, a copper pipe B between the entrance and air inlet pipe of refrigerator evaporator, at copper
An electromagnetic valve B, electromagnetic valve D it is respectively mounted, at inlet inside, the freezer evaporator of freezer evaporator on pipe A, copper pipe B
Outlet inside, outside, refrigerator evaporator outlet outside, be respectively mounted an electromagnetism outside the import of refrigerator evaporator
Valve A, electromagnetic valve C, electromagnetic valve F, electromagnetic valve E, electromagnetic valve G, control electromagnetic valve, the conducting of compressor by AT89C51 system
Or closing, refrigerating chamber, cold room all freeze or refrigerating chamber or cold room separate refrigeration or do not freeze, and are prolonged by software
Time and hardware time delay, control compressor operation.
Energy-conservation frost-free refrigerator-freezer the most according to claim 1, is characterized in that: when the copper pipe of the entrance of freezer evaporator
On there is no frost, light that the light emitting diode B above copper pipe sends enters light sensitive diode B, light sensitive diode B and is output as 1
By non-be 0 input P0.1 foot behind the door, when there being frost on copper pipe, input P0.1 foot for 1, when the temperature controller of cold room connects
Logical, the light that light emitting diode A sends enters light sensitive diode A, light sensitive diode A and is output as 1 input P0.0 foot, cold room
Temperature controller disconnects, and input P0.0 foot is 0, by AT89C51 system control, when input P0.0, P0.1 foot is 1,1, and P1 exports
For #F5H, bidirectional thyristor turns on, compressor operating, and electromagnetic valve B, electromagnetic valve D close, electromagnetic valve A, electromagnetic valve C, electromagnetic valve
E, electromagnetic valve F, electromagnetic valve G turn on, and refrigerating chamber, cold room all freeze, when input P0.0, P0.1 foot is 1,0, and P1 is output as #
92H, bidirectional thyristor turns on, compressor operating, and electromagnetic valve B, electromagnetic valve E turn on, electromagnetic valve A, electromagnetic valve C, electromagnetic valve D,
Electromagnetic valve F, electromagnetic valve G close, and refrigerating chamber does not freezes, refrigeration chamber, when input P0.0, P0.1 foot is 0,1, and P1 is output as #
8DH, bidirectional thyristor turns on, compressor operating, and electromagnetic valve A, electromagnetic valve C, electromagnetic valve D turn on, electromagnetic valve B, electromagnetic valve E,
Electromagnetic valve F, electromagnetic valve G close, and refrigerating chamber refrigeration, cold room do not freeze, when input P0.0, P0.1 foot is 0,0, and P1.7 exports
For #0, bidirectional thyristor ends, and compressor stops, and refrigerating chamber, cold room do not freeze, the cold airflow of compressor cross refrigerating chamber,
Cold room or individually flow through refrigerating chamber or individually flow through cold room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323760.6A CN104075525B (en) | 2014-06-28 | 2014-06-28 | Energy-conservation frost-free refrigerator-freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323760.6A CN104075525B (en) | 2014-06-28 | 2014-06-28 | Energy-conservation frost-free refrigerator-freezer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104075525A CN104075525A (en) | 2014-10-01 |
| CN104075525B true CN104075525B (en) | 2016-10-05 |
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ID=51596968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410323760.6A Expired - Fee Related CN104075525B (en) | 2014-06-28 | 2014-06-28 | Energy-conservation frost-free refrigerator-freezer |
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| CN (1) | CN104075525B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000192A (en) * | 2006-01-13 | 2007-07-18 | 博西华电器（江苏）有限公司 | Refrigeration system of refrigerator |
| CN101216234A (en) * | 2007-12-26 | 2008-07-09 | 海信科龙电器股份有限公司 | Frost-free refrigerator cooling system |
| CN102435027A (en) * | 2011-12-06 | 2012-05-02 | 西安交通大学 | Air source heat pump ultrasonic resonance defrosting method based on intermittent loading work |
| CN202938793U (en) * | 2012-11-26 | 2013-05-15 | 吴法理 | Shield type photoelectric sensor for frost ice on condenser pipe of refrigerator |
| CN203413915U (en) * | 2013-06-24 | 2014-01-29 | 武汉海桑科技有限责任公司 | Refrigerator condenser frosting detecting and defrosting controller |
-
2014
- 2014-06-28 CN CN201410323760.6A patent/CN104075525B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000192A (en) * | 2006-01-13 | 2007-07-18 | 博西华电器（江苏）有限公司 | Refrigeration system of refrigerator |
| CN101216234A (en) * | 2007-12-26 | 2008-07-09 | 海信科龙电器股份有限公司 | Frost-free refrigerator cooling system |
| CN102435027A (en) * | 2011-12-06 | 2012-05-02 | 西安交通大学 | Air source heat pump ultrasonic resonance defrosting method based on intermittent loading work |
| CN202938793U (en) * | 2012-11-26 | 2013-05-15 | 吴法理 | Shield type photoelectric sensor for frost ice on condenser pipe of refrigerator |
| CN203413915U (en) * | 2013-06-24 | 2014-01-29 | 武汉海桑科技有限责任公司 | Refrigerator condenser frosting detecting and defrosting controller |
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| Publication number | Publication date |
|---|---|
| CN104075525A (en) | 2014-10-01 |
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