TWI512253B - Multi-function refrigerating machine - Google Patents

Description

Multifunctional freezer

The present invention relates to a freezer, especially one capable of rapid cooling and improved freezing capacity and efficiency in a storage body.

The general freezer/storage refrigerator mainly comprises a compressor, a condenser, an expansion valve and an evaporator, and is connected by a pipeline to form a closed circuit capable of providing a circulating flow of the refrigerant; wherein the evaporator is set in the freezing In the storage, the liquid refrigerant entering the evaporator is absorbed by the compressor to absorb the heat in the freezing/storage chamber by low temperature evaporation, so that a low temperature state is formed in the library, thereby freezing the food or articles in the library. / Tibetan purposes.

The evaporator is an air-cooled evaporator in the early stage, and is provided with a circulation fan to force the air circulation mode to drive the air flow, so that the air in the reservoir exchanges heat with the heat exchange coil in the air-cooled evaporator. Since the motor of the circulating fan is heated, and the airflow sent by the circulating fan is heated by friction, the temperature inside the chamber rises. Therefore, the refrigerator has to be continuously operated to cool down. The lack of power consumption; in addition, it is forced to supply air circulation by a circulating fan, so the temperature of the air outlet and the air inlet will have an uneven temperature difference of four degrees Celsius; based on the above-mentioned many defects, the air-cooled type in recent years The evaporator has been replaced by a tube-cooled evaporator.

The tube-cooled evaporator described above is provided with a pipe for flowing a liquid refrigerant and a plurality of fins radially arranged on the outer surface of the pipe, so that the fins are fixed. Both the side surface and the outer surface of the pipe can provide cold energy to exchange heat with the refrigerated food placed in the warehouse; since the pipe with several fins is fixed in each area above the storage, the cold air naturally drops. The uniform cooling effect is achieved. Therefore, if a tube-cooled evaporator is provided in the library, the circulation fan can be eliminated, so that the above-mentioned lack of the air-cooled evaporator can be effectively solved. However, since the temperature of the two side surfaces of the fins and the outer surface of the pipe is about -20 ° C ~ -50 ° C, cold energy can be provided to exchange heat with the refrigerated food placed in the warehouse, thereby opening the freezing/storage At the door, the hot air entering the reservoir and the moisture and the moisture of the water to be frozen will condense on the surface of the two fins and the outer surface of the pipe, and will gradually accumulate as a barrier. It affects the efficiency of heat exchange; therefore, in order to maintain the normal operation of the freezing/storage machine, it is necessary to perform defrosting operations on the two side surfaces of the log fins and the outer surface of the pipe at an appropriate time. At present, the defrosting methods for the two side surfaces of the fins and the outer surface of the pipe include a compressor stop method, a hot gas defrost method and a water defrosting method, and these methods all make the fins The frost condensed on the surface of the two sides and the surface of the pipe is turned into water or a frost block, which causes the wetness of the ground in the storehouse and the frosty pieces of the frozen food to be dropped, which is not desirable. Therefore, how to absorb the hot air entering the storage tank and the moisture of the water and the moisture of the frozen material, prevent the evaporator of the tube-cooling type freezer from frosting, thereby improving the freezing capacity and efficiency of the freezer and improving Defrost efficiency, effectively solve the above-mentioned shortcomings, and how to quickly cool, become the motive of the research and development of the present invention.

The inventor has accumulated years of experience in manufacturing refrigeration equipment, and after many tests and improvements, finally realized a multifunctional refrigerator of the present invention. The main object of the present invention is to provide a kind of water which can absorb the hot air entering the library and the moisture and the moisture to be frozen, and prevent the evaporator of the tube cold freezing device from frosting, so as to improve the foregoing deficiency. Freezing of the freezer Capabilities and efficiencies, as well as a multi-function freezer that can be cooled quickly.

In order to achieve the above object, the technical means adopted by the present invention is: a multifunctional freezer comprising a tube cold freezing device, an air cooled freezing device and a freezing/storage; the tube cold freezing device comprises a a tube cold compressor, a tube cold condenser with a fan, a first passage connecting a tube cold compressor and a tube cold condenser, a tube cold reservoir connected to the tube cold condenser, and an outer tub a tube cold heat exchanger composed of a body and an inner barrel, a second passage connecting the tube cold heat exchanger, a first refrigerating solenoid valve located downstream of the second passage and communicating therewith, and a downstream of the first refrigerating solenoid valve And a third passage connected thereto, one or more expansion valves fixed to the third passage, and one or more tube-cooled evaporators disposed in the freezing/storage chamber, and one downstream of one of the tubes of the cold evaporator a fifth passage and a fourth passage connected to a downstream of the cold evaporator and communicating with the fifth passage; wherein the inner barrel of the cold heat exchanger is fixed to the upper end surface of the outer barrel, and Bucket input tube and tube cold The liquid device is connected, the output tube of the outer barrel body is in communication with the first freezing solenoid valve; the input tube of the inner barrel body is in communication with the fifth passage, and the output tube of the inner barrel body is connected with the tube cold compressor; the plurality of expansion valves are respectively Connected to one of the tube-cooled evaporators in a one-to-one manner to form a closed circuit that provides a circulating flow of the refrigerant; the tube-cooled evaporators are respectively composed of a tube member, a plurality of fins and a holder; the tube member One end communicates with the downstream of the expansion valve, and the other end of the tube passes through the fifth passage to the tube cold heat exchanger; the air-cooled freezer includes an air-cooled compressor, one end is connected to the air-cooled compressor and the other end is air-cooled a sixth passage communicating with the condenser, a seventh passage communicating with the sixth passage, a defrost solenoid valve disposed on the seventh passage, one end communicating with the output pipe of the outer tub body and the other end being connected to the second freezing solenoid valve An eighth passage communicating with one end of the third expansion valve, a second refrigerating solenoid valve disposed on the eighth passage, one end communicating with the other end of the defrost solenoid valve and the third expansion valve, and the other end being air-cooled a ninth passage communicating with one end of the evaporator, a tenth passage communicating with the other end of the air-cooled evaporator, an air-cooled condenser provided with a fan, and a gas composed of an outer barrel and an inner barrel a cold heat exchanger, a third expansion valve disposed downstream of the second refrigerating solenoid valve, and an air-cooled evaporator disposed in the freezing/storage chamber; wherein the inner barrel of the air-cooling heat exchanger is fixed An upper end surface of the outer barrel body, and an input pipe of the outer barrel body is in communication with the air-cooling condenser, and an output pipe of the outer barrel body communicates with the first freezing solenoid valve via the eighth passage to form a closed circuit capable of providing a circulating flow of the refrigerant; The inlet pipe of the inner barrel is in communication with the air-cooled evaporator, and the output pipe of the inner barrel is connected to the air-cooled compressor; the air-cooled evaporator includes a casing fixed to the top end of the freezing/storage chamber a plurality of fans fixed on the box body, a copper tube row fixed in the box body, and a water collecting tray fixed to the bottom of the box body and fixed with a drain pipe; the copper tube row is arranged behind the fan. And the refrigerant pipe is transversely inserted into the copper pipe row; the water collecting plate is set a bottom of the cabinet; the freezing/reservoir has an internal temperature switch having a first contact, a second contact and a third contact, and a first contact and a second contact; a third contact, a fourth contact, a fifth contact and a sixth contact selection switch, and a set timer of a first contact, a second contact and a third contact a micro switch having a first contact and a second contact, a library door relay provided with a contact, a time delay relay provided with a contact, a fixed contact and a first contact a defrosting timer of the second contact, a defrosting switch contactor having a coil, a first contact, a second contact, a third contact and a fourth contact, and a first The defrosting return temperature switch of the contact point and a second contact and a third contact point, a tube high and low pressure switch for cold, one tube cold electromagnetic switch coil, one tube cold compressor electromagnetic switch overload protector, one gas Cold high and low pressure switch, one air-cooled compressor electromagnetic switch coil, one air-cooled compressor electromagnetic switch overload protector and A power switch; the power switch tube cold compressor, air-cooled compressor, the interior temperature of the switch contacts of the third, set the timer First and second contacts of the micro switch, the contact of the library door relay, the time delay relay, the defrost timer, the coil of the defrost conversion contactor and the second contact, the electromagnetic switch of the tube cold compressor is overloaded The protector, the air-cooled compressor electromagnetic switch overload protector, the first refrigerating solenoid valve, the tube cold condenser fan, the defrost solenoid valve are electrically connected; the first contact of the temperature switch is respectively connected with the first switch of the selection switch The point is electrically connected to the second contact and the third contact; the fourth contact of the selection switch is electrically connected to the contact of the library door relay and the second contact of the set timer respectively; the fifth contact of the selection switch High and low pressure switch for air cooling, defrost timer, second refrigerating solenoid valve, fan of air-cooled condenser, fan of box, first contact of micro switch, contact of time delay relay, door relay and Setting the first contact of the timer to be electrically connected; the sixth contact of the selection switch is electrically connected with the third contact of the set timer; setting the first contact of the timer and the high and low pressure switch for air cooling, respectively Frost timer, second freezing The magnetic valve, the fan of the air-cooled condenser, and the fan of the box are electrically connected; the high and low pressure switch for air cooling is electrically connected with the electromagnetic switch coil of the air-cooled compressor, and the electromagnetic switch coil of the air-cooled compressor is combined with the air-cooled compressor The electromagnetic switch overload protector is electrically connected; the second contact of the timer is electrically connected with the contact of the library door relay and the fourth contact of the selection switch; the contact of the library door relay is respectively combined with the first freezing solenoid valve , the tube cold high and low pressure switch and the tube cold condenser fan electrical connection; the tube cold high and low pressure switch and the tube cold compressor electromagnetic switch coil electrical connection, the tube cold compressor electromagnetic switch coil complex and tube cold compressor The electromagnetic switch overload protector is electrically connected; the micro switch is disposed at the inlet of the freezing/storage, and is formed by the opening of the first contact circuit of the micro switch due to the opening of the library door and the closing of the library door The second contact circuit of the micro switch is turned on; the first contact of the micro switch is respectively connected with the first contact of the set timer, the fifth contact of the selection switch, the high and low pressure switch for air cooling, the defrost timer, Two solenoid valves refrigeration, air-cooled condenser fan, the casing of the fan, delay relay contacts, relay doors Electrical connection; the second refrigerating solenoid valve, the fan of the air-cooled condenser, the fan of the box are respectively electrically connected with the second contact and the fourth contact of the defrost conversion contactor; the second of the defrost conversion contactor The four contacts are electrically connected to the second contact of the defrost timer; the fixed contacts of the defrost timer are respectively connected to the second contact of the defrost conversion contactor, the air-cooled compressor electromagnetic switch overload protector, and the condenser The fan, the tube cold compressor electromagnetic switch overload protector, the first freezing solenoid valve, the set timer, the tube cold compressor, the air cooling compressor, the library door relay and the time delay relay are electrically connected; the second contact of the micro switch Electrically connected with the time delay relay; the contact points of the time delay relay and the high and low pressure switch for air cooling, the defrost timer, the second refrigerating solenoid valve, the fan of the air-cooled condenser, the fan of the box, and the door relay The defrosting solenoid valve is respectively electrically connected with the third contact of the defrosting conversion contactor and the coil of the defrosting conversion contactor; the third contact of the defrosting conversion contactor is respectively combined with the defrosting timer First contact The first contact of the conversion contactor and the third contact of the defrost return temperature switch are electrically connected; the coil of the defrost conversion contactor is respectively connected with the first contact of the defrost conversion contactor, the defrost solenoid valve and the The first contact of the frost return temperature switch is electrically connected; the first contact of the defrost conversion contactor is respectively connected with the third contact of the defrost return temperature switch, the third contact of the defrost conversion contactor and the defrost The first contact of the timer is electrically connected.

1‧‧‧ tube cold freezer

11‧‧‧ tube cold compressor

111‧‧‧ Output

112‧‧‧ input

113‧‧‧High and low pressure switch for tube cooling

114‧‧‧tube cold compressor electromagnetic switch coil

115‧‧‧tube cold compressor electromagnetic switch overload protector

12‧‧‧ tube cold condenser

121‧‧‧ input

122‧‧‧output

13‧‧‧tube cold reservoir

131‧‧‧ input

132‧‧‧output

14‧‧‧ pipe cold heat exchanger

141‧‧‧outer barrel

142‧‧‧ inner barrel

143‧‧‧ input tube

144‧‧‧Output tube

145‧‧‧Input tube

146‧‧‧Output tube

15‧‧‧First frozen solenoid valve

16a‧‧‧First expansion valve

16b‧‧‧Second expansion valve

17‧‧‧Fan

10a‧‧‧First access

10b‧‧‧second pathway

10c‧‧‧ third pathway

10d‧‧‧fourth path

10e‧‧‧ fifth pathway

10f‧‧‧ sixth pathway

10g‧‧‧ seventh pathway

10h‧‧‧8th pathway

10i‧‧‧ninth pathway

10j‧‧‧10th pathway

2‧‧‧First tube cold evaporator

21‧‧‧First pipe fittings

22‧‧‧Fins

23‧‧‧ Fixing frame

2a‧‧‧Second tube cold evaporator

21a‧‧‧Second fittings

22a‧‧‧Fins

23a‧‧‧Retaining frame

3‧‧‧Air-cooled freezer

31‧‧‧Air-cooled compressor

313‧‧‧High and low pressure switch for air cooling

314‧‧‧Air-cooled compressor electromagnetic switch coil

315‧‧‧Air-cooled compressor electromagnetic switch overload protector

32‧‧‧Air-cooled condenser

321‧‧‧ input

322‧‧‧output

323‧‧‧fan

33‧‧‧Air-cooled heat exchanger

331‧‧‧Outer barrel

332‧‧‧Input tube

333‧‧‧ inner barrel

334‧‧‧Output tube

335‧‧‧Input tube

336‧‧‧Output tube

34‧‧‧Air-cooled evaporator

341‧‧‧ cabinet

342‧‧‧fan

343‧‧‧ copper tube row

344‧‧‧Water collecting tray

345‧‧‧Drainage pipe

35‧‧‧Defrost solenoid valve

36‧‧‧Second refrigerating solenoid valve

37‧‧‧ Third expansion valve

41‧‧‧Cune temperature switch

411‧‧‧ first joint

412‧‧‧second junction

413‧‧‧ third joint

42‧‧‧Selection switch

421‧‧‧ first joint

422‧‧‧second junction

423‧‧‧ third joint

424‧‧‧fourth joint

425‧‧‧ fifth junction

426‧‧‧ sixth joint

43‧‧‧Set timer

431‧‧‧First contact

432‧‧‧second junction

433‧‧‧ third joint

44‧‧‧Micro Switch

441‧‧‧ first joint

442‧‧‧second junction

45‧‧‧ Kumen relay

451‧‧‧Contacts

46‧‧‧Time delay relay

461‧‧‧Contacts

47‧‧‧Defrost timer

473‧‧‧Fixed joints

471‧‧‧ first joint

472‧‧‧second junction

480‧‧‧ coil

481‧‧‧ first contact

482‧‧‧second junction

483‧‧‧ third joint

484‧‧‧fourth joint

40‧‧‧Defrost reset temperature switch

400‧‧‧ third joint

401‧‧‧ first contact

402‧‧‧second junction

5‧‧‧Frozen/Contained Library

6‧‧‧Power switch

Figure 1: System diagram of the multifunctional refrigerator of the present invention; Figure 2: right side view of the multifunctional freezing/storage of the present invention; Figure 3: sectional view of line 3-3 of Figure 2; Figure 4: Tube cold-freezing apparatus of the present invention A circuit diagram of the operation of the air-cooled freezer at the same time; FIG. 5 is a circuit diagram of the operation and cooling of the tube-cooled freezer of the present invention; Figure 6 is a circuit diagram of the operation and cooling of the air-cooled refrigerating apparatus of the present invention; Figure 7 is a circuit diagram of the operation and cooling of the air-cooled refrigerating apparatus with the door of the freezing/reservoir of the present invention opened; Figure 8: The door of the freezing/reservoir of the present invention FIG. 9 is a circuit diagram showing the operation and refrigeration of the air-cooled refrigeration system according to the present invention; FIG. 10 is a circuit diagram of the defrosting operation of the present invention; FIG. 11 is a circuit diagram of the defrosting operation of the present invention. A circuit diagram of the operation of the air-cooled freezer.

The above and other objects, features and advantages of the present invention will become more apparent from the <RTIgt; Referring to Figures 1, 2, 3 and 4, the present invention mainly provides a multifunctional refrigerator comprising a tube cold freezing device 1 and an air-cooled freezing device 3 and a food or article for freezing/ The frozen/freezer 5 is constructed; the tube-type cold-freezer 1 is formed by a plurality of passages to form a closed loop that can provide a circulating flow of the refrigerant, and includes a tube having an output end 111 and an input end 112. The compressor 11, a tube cold condenser 12 having an input end 121 and an output end 122 and a fan 17, a output end 111 of the communication tube cold compressor 11, and a first end 121 of the tube cold condenser 12 The passage 10a, a tube cold reservoir 13 having an input end 131 and an output end 132, a tube cold heat exchanger 14 for providing a superheated vaporized refrigerant into the tube cold compressor 11, and a communicating tube cold heat exchanger The second passage 10b of the second passage 10b is located downstream of and in communication with the second passage 10b to block or not block the flow of the refrigerant in the second passage 10b to the first tube cold evaporator 2 and the second tube. The first refrigerating solenoid valve 15 of the evaporator 2a, one is located in the first cold The third passage 10c downstream of and in communication with the solenoid valve 15 is fixed to the third passage 10c and located at a position downstream of the first refrigerating solenoid valve 15 and can expand the liquid refrigerant to provide a lower temperature condensation. First expansion valve for liquid refrigerant 16a, a second expansion valve 16b, and a first tube cold evaporator 2 communicating with the downstream of the first expansion valve 16a, a fifth passage 10e communicating with the downstream of the first tube cold evaporator 2, and a The fourth passage 10d communicating with the fifth passage 10e; wherein the input end 131 of the tube cold reservoir 13 is in communication with the output end 122 of the tube cold condenser 12, and the output end 132 and the second passage of the tube cold reservoir 13 10b is connected, or as shown in FIG. 1, the output end 132 of the tube cold reservoir 13 is in communication with the inlet tube 143 of the barrel 141 outside the tube cold heat exchanger 14; the tube cold heat exchanger 14 includes a tube for storage from the tube The outer tub 141 of the low-temperature liquid refrigerant of the cold accumulator 13 and an upper end surface fixed to the inside of the outer tub 141 are used for storing the low-temperature gaseous refrigerant from the fifth passage 10e as the inner tub 142 of the gas-liquid separator. The outer barrel 141 is provided with an input tube 143 which can be connected with the output end 132 of the tube cold reservoir 13, and an output tube 144 which can communicate with the first refrigerating solenoid valve 15 to make the tube cold reservoir 13 The liquid refrigerant can enter the first freezing solenoid valve 15 via the input pipe 143 and the output pipe 144 of the outer tub 141; the inner tub 142 An input pipe 145 communicating with the fifth passage 10e and an output pipe 146 communicating with the input end 112 of the pipe cold compressor 11 are provided to allow the low temperature gaseous refrigerant from the first pipe cold evaporator to pass through the fifth passage 10e and the input The tube 145 enters the inner barrel 142 and passes through the output tube 146, the input end 112 of the tube cold compressor 11 and enters the tube cold compressor 11 to form a closed loop which can provide a circulating flow of the refrigerant; the first tube cold evaporator 2 and the second tube cold evaporator 2a are both disposed in the freezing/storage chamber 5; the first tube cold evaporator 2 is a first tube member 21 through which the liquid refrigerant flows, and the plurality of tubes are integrally formed in the first tube The outer wall of the tube member 21 is formed by a radial fin 22 and a fixing frame 23 for the first tube member 21 or the fin 22 to be fixed to the top end surface of the freezing/storage chamber 5; the second tube is cooled by evaporation. The second tube member 21a is formed by a plurality of second tube members 21a for circulating the liquid refrigerant, and the fins 22a formed integrally with the outer wall of the second tube member 21a are fixed to the second tube member 21a or the fins 22a. a fixing frame 23a of the top end surface of the freezing/storage 5; one end of the first pipe member 21 and the first Downstream communication expansion valve 16a, a first tubular member 21 of the other The end is in communication with the fifth passage 10e; one end of the second tubular member 21a is in communication with the downstream of the second expansion valve 16b, and the other end of the second tubular member 21a is in communication with the fourth passage 10d, so that the first refrigerating solenoid valve 15 is actuated to open The second passage 10b, when the liquid refrigerant after the expansion treatment passes through the first pipe member 21 and the second pipe member 21a, the outer surfaces of the first pipe member 21 and the second pipe member 21a and the two side surfaces of the plurality of fins 22, 22a can provide cold It can exchange heat with the refrigerated food placed in the freezing/storage/storage 5, so that the liquid refrigerant becomes a low-pressure low-temperature gaseous refrigerant due to the heat absorbed by the heat exchange, and then passes through the fourth passage 10d and the fifth passage 10e to the tube. After the cold heat exchanger 14 is subjected to gas-liquid separation treatment, and then returned to the tube cold compressor 11, a tube-cooling refrigeration cycle is completed; the air-cooled refrigeration unit 3 is connected by a plurality of passages to form a separate refrigerant supply cycle. The flow closed loop comprises a gas-cooled compressor 31 having an output end 311 and an input end 312, a sixth passage 10f, a seventh passage 10g, and a seventh passage 10g. Broken or not blocking the seventh The refrigerant in the road 10g flows to the defrosting solenoid valve 35 of the air-cooled evaporator 34, an eighth passage 10h, and is disposed on the eighth passage 10h to block or not block the refrigerant flow in the eighth passage 10h. a second refrigerating solenoid valve 36 to a third expansion valve 37, a ninth passage 10i, a tenth passage 10j, an air-cooling condenser 32 having an input end 321 and an output end 322 and a fan 323, An air-cooled heat exchanger 33 for introducing a superheated vaporized refrigerant into the air-cooled compressor 31, a third expansion valve 37 which can expand the liquid refrigerant and disposed downstream of the second refrigerating solenoid valve 36, and an air-cooled evaporation The first end of the sixth passage 10f is in communication with the output end 311 of the air-cooled compressor 31, and the other end of the sixth passage 10f is in communication with the input end 321 of the air-cooled condenser 32; the output end 322 of the air-cooled condenser 32 is The air-cooling heat exchanger 33 is connected to the inlet pipe 332 of the barrel 331; the air-cooling heat exchanger 33 includes an outer tub 331 for storing the normal temperature liquid refrigerant and an upper end surface fixed to the inner portion of the outer tub 331 for Store low temperature gas or liquid refrigerant as a gas-liquid separator The barrel body 333 enables the refrigerant in the outer barrel 331 and the inner barrel 333 to exchange heat with each other to save energy; the outer barrel 331 is provided with an input tube 332 and an output tube 334; the inner barrel 333 is provided with a The input pipe 335 and the output pipe 336 enable the low-temperature gas or liquid refrigerant from the air-cooled evaporator 34 to enter the inner tub 333 via the tenth passage 10j and the input pipe 335, and then pass through the output pipe 336, the air-cooled compressor 31. The input end 312 enters the air-cooled compressor 31; one end of the seventh passage 10g communicates with the sixth passage 10f, and the other end of the seventh passage 10g communicates with the ninth passage 10i via the defrost solenoid valve 35; one end of the eighth passage 10h The other end of the eighth passage 10h communicates with one end of the third expansion valve 37 via the second refrigerating solenoid valve 36; one end of the ninth passage 10i and the defrosting solenoid valve 35 and The other end of the third expansion valve 37 is in communication, the other end of the ninth passage 10i is in communication with one end of the air-cooled evaporator 34, and the other end of the air-cooled evaporator 34 is in communication with the tenth passage 10j to form a refrigerant circulation. Closed loop of flow; the air cooled evaporation The 34 is disposed in the freezing/reservoir 5, and includes a box body 341 fixed to the top end surface of the freezing/storage chamber 5, a plurality of fans 342 fixed on the box body 341, and a fixed body 341. The inner copper tube row 343 and a water collecting tray 344 fixed to the bottom of the box body 341 and fixed with a drain pipe 345; the copper tube row 343 is disposed behind the fan 342, and is transversely penetrated into the copper tube by the refrigerant tube In the row 343, the refrigerant compressed by the air-cooled compressor 31 is introduced into the refrigerant pipe from above; the water collecting plate 344 is disposed at the bottom of the casing 341, and the water collecting plate 344 is provided to collect the water by the drainage. The tube 345 is excluded; the freezing/reservoir 5 has an internal temperature switch 41 having a first contact 411, a second contact 412 and a third contact 413, and a first contact 421 and a a second switch 422, a third contact 423, a fourth contact 424, a fifth contact 425 and a sixth contact 426 selection switch 42, one with a first contact 431, a second a setting timer 43 of the contact 432 and a third contact 433, a micro switch 44 having a first contact 441 and a second contact 442, and a contact 451 a library door relay 45, a delay relay 46 having a contact 461, a defroster timer 47 having a fixed contact 473 and a first contact 471 and a second contact 472, a coil 480, a defrosting switch contactor of a first contact 481, a second contact 482, a third contact 483 and a fourth contact 484, a first contact 401 and a second contact 402 are provided A third contact 400 defrosting reset temperature switch 40, a tube cold high and low pressure switch 113, a tube cold compressor electromagnetic switch coil 114, a tube cold compressor electromagnetic switch overload protector 115, a gas cooling high and low pressure The switch 313, an air-cooled compressor electromagnetic switch coil 314, an air-cooled compressor electromagnetic switch overload protector 315 and a power switch 6; the power switch 6 and the tube cold compressor 11, the air-cooled compressor 31, the internal temperature switch 41 The third contact 413, the set timer 43, the first contact 441 and the second contact 442 of the micro switch 44, the library door relay 45, the contact point 461 of the delay relay 46, the defrost timer 47, and the defrost conversion Contactor coil 480 and second contact 482, tube cold compressor electromagnetic switch overload The protector 115, the air-cooled compressor electromagnetic switch overload protector 315, the first refrigerating solenoid valve 15, the fan 17 of the tube cold condenser 12, and the defrost solenoid valve 35 are electrically connected, and the power switch 6 is manually controlled. Turning on or off, providing power to operate the electrical devices electrically connected thereto; the first contact 411 of the temperature switch 41 is electrically connected to the first contact 421 and the second contact 422 and the third contact 423 of the selection switch 42, respectively. The fourth connection 424 of the selection switch 42 is electrically connected to the contact 451 of the library door relay 45 and the second contact 432 of the set timer 43, respectively; the fifth contact 425 of the selection switch 42 is respectively air-cooled The high and low pressure switch 313, the defrost timer 47, the second refrigerating solenoid valve 36, the fan 323 of the air-cooled condenser 32, the fan 342 of the casing 341, the first contact 441 of the micro switch 44, and the delay relay 46 are connected. Point 461, the library door relay 45 and the first contact 431 of the set timer 43 are electrically connected; the sixth contact 426 of the selection switch 42 is electrically connected to the third contact 433 of the set timer 43; setting the timer 43 The first contact 431 is respectively associated with the high and low pressure switch 313 for air cooling, and the defrosting 47, the second solenoid valve 36 is frozen, the air-cooled condenser 32 The fan 323 and the fan 342 of the box body 341 are electrically connected; the high and low pressure switch 313 for air cooling is electrically connected with the electromagnetic switch coil 314 of the air-cooled compressor, and the electromagnetic switch coil 314 of the air-cooled compressor is combined with the electromagnetic compressor of the air-cooled compressor. The switch overload protector 315 is electrically connected; the second contact 432 of the set timer 43 is electrically connected to the contact 451 of the library door relay 45 and the fourth contact 424 of the selector switch 42; the contact 451 of the library door relay 45 The first refrigerating solenoid valve 15, the tube cooling high and low pressure switch 113 and the tube cooling condenser 12 are electrically connected to each other; the tube cooling high and low pressure switch 113 is electrically connected to the tube cold compressor electromagnetic switch coil 114. The tube cold compressor electromagnetic switch coil 114 is electrically connected to the tube cold compressor electromagnetic switch overload protector 115; the micro switch 44 is disposed at the inlet of the freezing/reservoir 5, and the micro switch is formed due to the opening of the library door The first contact 441 circuit of 44 is turned on and the second contact 442 circuit of the micro switch 44 is turned on due to the closing of the library door; the first contact 441 of the micro switch 44 is respectively set with the timer 43 First contact point 431, selection switch 42 Five contacts 425, air-cooling high and low pressure switch 313, defrost timer 47, second refrigerating solenoid valve 36, fan 323 of air-cooled condenser 32, fan 342 of case 341, contact point 461 of time delay relay 46, The Kumen relay 45 is electrically connected; the second refrigerating solenoid valve 36, the fan 323 of the air-cooled condenser 32, and the fan 342 of the casing 341 are respectively electrically connected to the second contact 482 and the fourth contact 484 of the defrost conversion contactor. The fourth connection 484 of the defrost conversion contactor is electrically connected to the second contact 472 of the defrost timer 47; the fixed contact 473 of the defrost timer 47 and the second of the defrost conversion contactor respectively Contact 482, air-cooled compressor electromagnetic switch overload protector 315, fan 12 of condenser 12, tube cold compressor electromagnetic switch overload protector 115, first refrigerating solenoid valve 15, set timer 43, tube cold compressor 11 The air-cooled compressor 31, the library door relay 45 and the time delay relay 46 are electrically connected; the second contact 442 of the micro switch 44 is electrically connected to the time delay relay 46; the contact point 461 of the time delay relay 46 is used for air cooling and air cooling respectively. High and low pressure switch 313, defrost timer 47, second refrigerating solenoid valve 36 Fan 32 of the air-cooled condenser 323, the housing 341 of the fan 342, The guillotine relay 45 is electrically connected; the defrosting solenoid valve 35 is electrically connected to the third contact 483 of the defrosting conversion contactor and the coil 480 of the defrosting conversion contactor respectively; the third contact of the defrosting conversion contactor 483 is electrically connected to the first contact 471 of the defrost timer 47, the first contact 481 of the defrost conversion contactor, and the third contact 400 of the defrost reset temperature switch 40 respectively; the defroster conversion contactor The coil 480 is electrically connected to the first contact 481 of the defrosting conversion contactor, the defrosting solenoid valve 35 and the first contact 401 of the defrosting return temperature switch 40 respectively; the first contact 481 of the defrosting conversion contactor The third contact 400 of the defrosting return temperature switch 40, the third contact 483 of the defrosting switch contactor, and the first contact 471 of the defrosting timer 47 are electrically connected.

The function of the present invention will be described in detail as follows: Please refer to FIG. 1 and FIG. 4, when there is a need for rapid running cooling, the power switch 6 is turned on and there is a power source, and the temperature switch 41 in the library is insufficient due to the temperature in the sensing library. When activated, the first contact 411 of the internal temperature switch 41 is turned on, and the actuation selection switch 42 is rapidly frozen, so that the first contact 421 and the fourth contact 424, the second contact 422 of the selection switch 42 and The fifth contact 425 is simultaneously turned on, and the first contact 421 and the fourth contact 424 are turned on to have power, so that the tube cold compressor electromagnetic switch coil 114 is energized to start the tube cold compressor 11 to cool, and The fan 17 of the tube cold condenser 12 is activated, and the first refrigerating solenoid valve 15 is actuated to open the second passage 10b; the refrigerant is compressed by the tube cold compressor 11 to become a high-temperature high-pressure gaseous refrigerant, and then passes through the first passage 10a. And entering the tube cold condenser 12 to cool into a high pressure normal temperature liquid refrigerant, and then, through the tube cold reservoir 13, the inlet tube 143 and the output tube 144 of the tube cooling heat exchanger 14, the second passage 10b, the first refrigerating solenoid valve 15, The third passage 10c enters the first expansion valve 16 respectively After the a and the second expansion valve 16b are expanded, they become a low-temperature low-pressure liquid refrigerant, and then pass through the first tube cold evaporator 2 and the second tube cold evaporator 2a, and are cooled by the first tube cold evaporator 2 and the second tube. The evaporator 2a provides cold energy for heat exchange with the refrigerated food placed in the freezing/storage 5, and then passes through the fourth passage. 10d, the fifth passage 10e, the inlet pipe 145 of the inner barrel 142 of the tube cold heat exchanger 14, and the output pipe 146, and then returned to the pipe cold compressor 11, that is, the process of running the refrigeration cycle of the pipe-cooling type refrigerating device 1 is completed; Moreover, since the second contact 422 and the fifth contact 425 are simultaneously turned on, the air-cooled compressor electromagnetic switch coil 313 is energized to start the air-cooling compressor 31 to cool, and the fan 323 and the gas of the air-cooled condenser 32 are activated. The fan 342 of the cold evaporator 34 is activated, and the second refrigerating solenoid valve 36 is actuated to open the eighth passage 10h; since the defrosting solenoid valve 35 is not energized, the seventh passage 10g is defrosted electromagnetically The valve 35 is blocked, so that the refrigerant cannot flow to the air-cooled evaporator 34 through the seventh passage 10g; therefore, the refrigerant is compressed by the air-cooled compressor 31 to become a high-temperature high-pressure gaseous refrigerant, and then enters the air-cooled through the sixth passage 10f. The condenser 32 is cooled to a high-pressure normal temperature liquid refrigerant, and then enters through the inlet pipe 332 of the barrel 331 outside the air-cooling heat exchanger 33, the output pipe 334 of the outer tub 331, the eighth passage 10h, and the second refrigerating solenoid valve 36. The third expansion valve 37 expands to become a low temperature and low pressure liquid The medium enters the air-cooled evaporator 34 through the ninth passage 10i, and the cold energy provided by the air-cooled evaporator 34 exchanges heat with the refrigerated food placed in the freezing/storage chamber 5, and the heat exchanged refrigerant passes through the tenth. The passage 10j, the inlet pipe 335 of the inner tub 333 of the air-cooling heat exchanger 33, and the output pipe 336 of the inner tub 333 are returned to the air-cooled compressor 31, that is, the operation of the air-cooled refrigerating device 3 is completed. Since the tube-cooling type refrigerating apparatus 1 and the air-cooling type refrigerating apparatus 3 are simultaneously operated and cooled, the refrigeration/storage 5 can be made in comparison with the tube-cooling type refrigerating apparatus 1 or the air-cooling type refrigerating apparatus 3, which is separately operated and cooled. The temperature is rapidly reduced, and the food or articles in the freezing/storage 5 can be quickly frozen/contained.

Referring to FIG. 1 and FIG. 5, when it is not necessary to perform the rapid operation freezing and only need to operate the tube cold freezer 1 separately, the power switch 6 is turned on and the power is turned on, and the temperature switch 41 in the library is insufficient due to the temperature in the sensing chamber. When activated, the first contact 411 of the internal temperature switch 41 is turned on, and the selection switch 42 is actuated, so that the third contact 423 and the sixth contact 426 of the selection switch 42 are turned on. The first contact 421 and the fourth contact 424, the second contact 422, and the fifth contact 425 of the switch 42 are simultaneously turned off, and the setting timer 43 is adjusted and set to continuously operate the tube-cooling type freezer 1 The second contact 432 of the timer 43 is energized to turn on the tube cold compressor electromagnetic switch coil 114 to activate the tube cold compressor 11 to cool, and the fan 17 of the tube cold condenser 12 is activated, and The first refrigerating solenoid valve 15 is actuated to open the second passage 10b; the refrigerant is compressed by the tube cold compressor 11 to become a high-temperature high-pressure gaseous refrigerant, and then enters the tube cold condenser 12 through the first passage 10a to cool into a high-pressure normal temperature liquid refrigerant. Then, the first expansion valve 16a and the second expansion valve 16b are inflated via the tube cold reservoir 13, the input tube 143 and the output tube 144 of the tube cooling heat exchanger 14, the second passage 10b, and the first freezing solenoid valve 15. After the low temperature and low pressure liquid refrigerant is passed through the first tube cold evaporator 2 and the second tube cold evaporator 2a, the cold energy is provided by the first tube cold evaporator 2 and the second tube cold evaporator 2a. Heat exchange of refrigerated food in the frozen/contained warehouse 5, followed by The fourth passage 10d, the fifth passage 10e, the input pipe 145 and the output pipe 146 of the inner tub 142 of the pipe cold heat exchanger 14 are returned to the pipe cold compressor 11, that is, the pipe cooling system 1 is operated and cooled. Loop process.

Referring to FIG. 1 and FIG. 6, when it is not necessary to perform the rapid operation freezing and only the air-cooling type refrigerating apparatus 3 is separately operated, the power switch 6 is turned on and the power is turned on, and the temperature switch 41 in the library is insufficient due to the temperature in the sensing chamber. When activated, the first contact 411 of the internal temperature switch 41 is turned on, the third contact 423 and the sixth contact 426 of the active selection switch 42 are turned on, and the first contact 421 and the fourth of the selection switch 42 are turned on. The contact 424, the second contact 422, and the fifth contact 425 are simultaneously turned off, and the setting timer 43 is adjusted and set to continuously operate the air-cooled refrigerating apparatus 1, and the first contact 431 of the timer 43 is set. There is a power supply to cause the air-cooled compressor electromagnetic switch coil 313 to be energized to start the air-cooled compressor 31 to cool, and the fan 323 of the air-cooled condenser 32 and the fan 342 of the air-cooled evaporator 34 are activated, and the second The freezing solenoid valve 36 is actuated to open the eighth passage 10h; since the defrost solenoid valve 35 is not turned on The power supply causes the seventh passage 10g to be blocked by the defrost solenoid valve 35, so that the refrigerant cannot flow to the air-cooled evaporator 34 via the seventh passage 10g; therefore, the refrigerant is compressed by the air-cooled compressor 31 to become a high-temperature and high-pressure gas state. The refrigerant passes through the sixth passage 10f and enters the air-cooled condenser 32 to be cooled into a high-pressure normal temperature liquid refrigerant, and then passes through the inlet pipe 332 of the barrel 331 and the output pipe 334 of the outer tub 331 via the air-cooling heat exchanger 33. The eight passages 10h and the second refrigerating solenoid valve 36 are expanded into the third expansion valve 37 to become a low-temperature low-pressure liquid refrigerant, and then enter the air-cooled evaporator 34 through the ninth passage 10i, and the cold energy is supplied from the air-cooled evaporator 34. The heat exchange is performed with the refrigerated food placed in the freezing/storage 5, and the heat exchanged refrigerant passes through the tenth passage 10j, the inlet pipe 335 of the inner tub 333 of the air-cooling heat exchanger 33, and the output pipe 336 of the inner tub 333. Returning to the air-cooled compressor 31, the air-cooling refrigeration system 3 is operated to complete the refrigeration cycle.

Referring to FIG. 1 and FIG. 7, when the tube-type cold freezer 1 is operated and cooled, the door of the freezing/storage 5 is opened, the first contact 441 of the micro switch is turned on, and the second switch of the micro switch is connected. The point 442 is disconnected, the air-cooled compressor electromagnetic switch coil 313 is energized to start the air-cooled compressor 31 to be cooled, and the fan 323 of the air-cooled condenser 32 and the fan 342 of the air-cooled evaporator 34 are activated, and The second refrigerating solenoid valve 36 is actuated to open the eighth passage 10h; since the defrosting solenoid valve 35 is not energized, the seventh passage 10g is blocked by the defrosting solenoid valve 35, so that the refrigerant cannot pass through the seventh passage 10g. Flowing to the air-cooled evaporator 34; therefore, the refrigerant is compressed by the air-cooled compressor 31 to become a high-temperature high-pressure gaseous refrigerant, and then enters the air-cooled condenser 32 through the sixth passage 10f to cool into a high-pressure normal temperature liquid refrigerant, and then, via the liquid refrigerant. The inlet pipe 332 of the barrel 331 and the outlet pipe 334 of the outer barrel 331 , the eighth passage 10h and the second freezing solenoid valve 36 outside the air-cooled heat exchanger 33 enter the third expansion valve 37 to be expanded into a low-temperature low-pressure liquid refrigerant. Entering the air-cooled steam through the ninth passage 10i 34, air cooled by the evaporator 34 can hide cold refrigerated within the library and placed in the freezer for 5 Food / heat exchanger, heat exchange The refrigerant passes through the tenth passage 10j, the input pipe 335 of the inner tub 333 of the air-cooling heat exchanger 33, and the output pipe 336 of the inner tub 333, and returns to the air-cooled compressor 31, that is, completes the air-cooled freezer. 3, the operation of the refrigeration cycle; at the same time, the open door relay 45 has the power supply turned on, so that the contact 451 of the open door relay 45 is disconnected due to energization, because of the no-power operation of the cold compressor 11. Therefore, the first tube cold evaporator 2 and the second tube cold evaporator 2a do not provide cold energy for heat exchange, so the first tube cold evaporator 2 and the second tube cold evaporator 2a do not end. Frost. Since only the air-cooled evaporator 34 provides cold energy for heat exchange, the hot air entering the freezing/storage 5 and the moisture of the water and the water to be frozen are only used by the air-cooled evaporator 34. Draw and condense into a cream.

Referring to FIG. 1 and FIG. 8 again, when the door of the freezing/storage room is opened and the operation of the air-cooled refrigerating device 3 is being performed, and the door of the freezing/storage chamber 5 is closed, the first contact of the micro switch 441 is disconnected, the second contact 442 of the micro switch is turned on, and the power source can start the time delay relay 46 to start timing. It is assumed that the preset time is automatically disconnected from the contact point 461 of the time delay relay 46 after five minutes of closing the door. After five minutes, the contact 461 of the time delay relay 46 is automatically disconnected, so that the air-cooled freezer 3 stops the refrigeration cycle, and the cold-cooling device 1 is operated to run the refrigeration cycle; when the contact of the time-delay relay 46 is 461 When the disconnection is not completed, since the contact 451 of the open door relay still has a power supply that is turned on for five minutes, the open door relay 45 is still disconnected and the tube cold compressor 11 cannot be started to be cooled. Since the air-cooled refrigerating device 3 maintains the operation refrigeration cycle flow within five minutes of closing the door, the air-cooled evaporator 34 provides cold energy for heat exchange, and therefore, the hot air entering the freezing/storage 5 and the enthalpy The water vapor and the moisture of the frozen material are sucked by the air-cooled evaporator 34 and condensed into frost, and the cold energy is not provided by the first tube cold evaporator 2 and the second tube cold evaporator 2a. The heat exchange, so the first tube cold evaporator 2 and the second tube cold evaporator 2a do not frost.

Referring again to Figures 1 and 9, when there is a water in the freezing/storage chamber 5 that will release moisture In the case of a frozen product, the water of the frozen product is cooled by the tube-type refrigerating apparatus 1, and the first tube-cooled evaporator 2 and the second-tube cold-type evaporator 2a of the tube-type cold-type freezing apparatus 1 are Provides cold energy for heat exchange and frosting. In order to eliminate frost on the first tube cold evaporator 2 and the second tube cold evaporator 2a of the tube cold freezer 1, a tube cold type freezer 1 and an air cooled type freezer 3 may be used for crossover, for example: The setting timer 43 is preset to stop after the operation of the tube-cooled refrigerating apparatus 1 for five hours, and automatically stops the operation of the air-cooled refrigerating apparatus 3 after one hour of operation, and then stops. The third contact 423 and the sixth contact 426 of the actuating selector switch 42 are turned on, and the first contact 421 and the fourth contact 424, the second contact 422, and the fifth contact 425 of the selection switch 42 are simultaneously turned off. open. Assuming that the tube-cooling type refrigerating apparatus 1 has been operated for five hours, at this time, the first contact 431 of the setting timer 43 is turned on, the air-cooling compressor 31 is started to be cooled, and the fan 323 of the air-cooling condenser 32 is air-cooled. The fan 342 of the evaporator 34 is activated, and the second refrigerating solenoid valve 36 is actuated to open the eighth passage 10h; further, the defroster solenoid valve 35 is defrosted by the power supply of the seventh passage 10g The valve 35 is blocked, so that the refrigerant cannot flow to the air-cooled evaporator 34 through the seventh passage 10g; the refrigerant is compressed by the air-cooled compressor 31 to become a high-temperature high-pressure gaseous refrigerant, and then enters the air-cooled condenser through the sixth passage 10f. 32 is cooled into a high pressure normal temperature liquid refrigerant, and then enters the third through the inlet pipe 332 of the barrel 331 outside the air-cooled heat exchanger 33 and the output pipe 334, the eighth passage 10h, and the second refrigerating solenoid valve 36 of the outer barrel 331 After the expansion valve 37 is expanded, it becomes a low-temperature low-pressure liquid refrigerant, and then enters the air-cooled evaporator 34 through the ninth passage 10i, and the cold energy is supplied from the air-cooled evaporator 34 to be heated by the refrigerated food placed in the freezing/storage 5. Exchange, heat exchange of refrigerant via the tenth passage 1 The input pipe 335 of the inner tub 333 and the output pipe 336 of the inner tub 333 of the air-cooled heat exchanger 33 are returned to the air-cooled compressor 31, that is, the air-cooling refrigerating device 3 is operated to execute the refrigeration cycle. Since the air-cooled evaporator 34 provides cold energy for heat exchange; in addition, since the first tube cold evaporator 2 and the second tube cold evaporator 2a do not provide cold energy for heat Exchanging, the frost on the first tube cold evaporator 2 and the second tube cold evaporator 2a will be vaporized and sublimated, and absorbed by the air-cooled evaporator 34, the first tube of the tube type cold freezing device 1 is cooled The frost on the evaporator 2 and the second tube cold evaporator 2a can thus be eliminated.

The defrost timer 47 of the present invention can accumulate the time during which the air-cooled compressor 31 is operated and cooled. The user can preset the defrost timer 47 to start the defrosting operation after the air-cooled compressor 31 has accumulated and operated for a certain period of time (a few hours). When the air-cooled compressor 31 is running cooling, if the accumulated running time of the air-cooled compressor 31 preset by the defrosting timer 47 has reached the preset number of hours, the defrosting timer 47 activates the air-cooled compressor 31. Stop running cooling and change to defrosting. When the defrosting operation is performed, referring to FIG. 1 and FIG. 10, the first contact 471 of the defrosting timer 47 is turned on, and the second contact 472 of the defrosting timer 47 is turned off, so that the power is turned on. Following the third contact 483 of the defrosting switch contactor 480 that has been turned on, the defrosting solenoid valve 35 is opened to open the seventh passage 10g, and the high-pressure high-temperature gaseous refrigerant passes through the sixth passage 10f, the seventh passage 10g, and the ninth passage. The air-cooled evaporator 34 is introduced into the air-cooled evaporator 34, and the surface of the air-cooled evaporator 34 is heated and melted to perform frosting, and the water generated by the defrosting is concentrated on the water collecting tray 34 and discharged from the drain pipe 35.

Assuming that the defrosting time set by the defrosting timer 47 is 15 minutes, the defrosting timer 47 will open the first contact 471 after 15 minutes; at this time, the second contact 472 is turned on, defrosting The switching contactor 480 is not energized, the defrosting conversion contactor first contact 481 and the defrosting conversion contactor second contact 482 are disconnected, so that the defrosting conversion contactor third contact 483 and the defrosting conversion contactor The fourth junction 484 is turned "on" and the cold energy is supplied by the air-cooled evaporator 34 for heat exchange, as shown in FIG.

The defrosting is sometimes completed in 5 minutes due to the small amount of frost in the freezing/storage 5, and at this time, the defrosting timer 47 does not immediately turn off the first contact 471 of the defrosting timer 47, and It will not be disconnected until it is kept for 10 minutes; at this time, the defrosting return temperature switch 40 senses the temperature of the air-cooled evaporator 34. Degree, knowing that the defrosting work has been completed, the first contact 401 of the defrosting return temperature switch 40 is turned on, the second contact 402 of the defrosting return temperature switch 40 is turned off, and at the same time, the defrosting switch contacts The 480 can be excited by the power source, so that the third contact 483 and the fourth contact 484 of the defrosting switch contactor are disconnected, and the first contact 481 and the second contact 482 are turned on to resume the air-cooled freezing. The apparatus 3 is operated to be cooled, and the cold energy is supplied from the air-cooled evaporator 34 for heat exchange, as shown in FIG.

As apparent from the above description, in the present invention, since the tube-cooling type refrigerating apparatus 1 and the air-cooling type refrigerating apparatus 3 can be simultaneously operated and cooled, it is possible to make the tube-cooling type refrigerating apparatus 1 or the air-cooling type refrigerating apparatus 3 separately operated and cooled. The temperature in the freezing/storage 5 is rapidly lowered, and the food or articles in the freezing/storage 5 can be quickly frozen/contained. Further, in the present invention, when the door of the freezing/storage 5 is opened, the air-cooling type refrigerating apparatus 3 is operated in the freezing/freezing system 5 instead of the tube-cooling type refrigerating apparatus 1 by the action of the micro switch. The hot air and the moisture of the water and the water to be frozen are sucked by the air-cooled evaporator 34 and condensed into frost, due to the first tube cold evaporator 2 and the second tube cold evaporator 2a The cold energy is not provided for heat exchange, so the first tube cold evaporator 2 and the second tube cold evaporator 2a are not frosted; in addition, due to the first tube cold evaporator 2 and the second tube cold evaporation The frost of the device 2a is vaporized and sublimated, and is absorbed by the air-cooled evaporator 34, and the frost on the first tube cold evaporator 2 and the second tube cold evaporator 2a of the tube cold freezer 1 can Moreover, since the frosting of the air-cooled evaporator 34 can be melted into water upon defrosting and concentrated on the water collecting tray 34, it is discharged by the drain pipe 35, so that the ground in the freezing/storage room is not wet. It also does not cause a frosty piece of frozen food that has been dropped. Further, the air-cooled refrigerating apparatus 3 of the present invention is cooled only when the door of the defrosting and freezing/reservoir 5 is opened, and most of the other time is operated by the tube-cooling type refrigerating apparatus 1 for cooling, therefore, Each zone in the freezer/storage can achieve a fully uniform cooling effect, and, because of the first tube cold evaporator 2 and the second tube cold Since the evaporator 2a does not frost, the present invention is highly effective in improving the freezing ability and efficiency of the refrigerator.

11‧‧‧ tube cold compressor

113‧‧‧High and low pressure switch for tube cooling

114‧‧‧tube cold compressor electromagnetic switch coil

115‧‧‧tube cold compressor electromagnetic switch overload protector

15‧‧‧First frozen solenoid valve

17‧‧‧Fan

31‧‧‧Air-cooled compressor

313‧‧‧High and low pressure switch for air cooling

314‧‧‧Air-cooled compressor electromagnetic switch coil

315‧‧‧Air-cooled compressor electromagnetic switch overload protector

323‧‧‧fan

342‧‧‧fan

35‧‧‧Defrost solenoid valve

36‧‧‧Second refrigerating solenoid valve

41‧‧‧Cune temperature switch

411‧‧‧ first joint

412‧‧‧second junction

413‧‧‧ third joint

42‧‧‧Selection switch

421‧‧‧ first joint

422‧‧‧second junction

423‧‧‧ third joint

424‧‧‧fourth joint

425‧‧‧ fifth junction

426‧‧‧ sixth joint

43‧‧‧Set timer

431‧‧‧First contact

432‧‧‧second junction

433‧‧‧ third joint

441‧‧‧ first joint

442‧‧‧second junction

45‧‧‧ Kumen relay

451‧‧‧Contacts

46‧‧‧Time delay relay

461‧‧‧Contacts

47‧‧‧Defrost timer

473‧‧‧Fixed joints

471‧‧‧ first joint

472‧‧‧second junction

480‧‧‧ coil

481‧‧‧ first contact

482‧‧‧second junction

483‧‧‧ third joint

484‧‧‧fourth joint

40‧‧‧Defrost reset temperature switch

400‧‧‧ third joint

401‧‧‧ first contact

402‧‧‧second junction

6‧‧‧Power switch

Claims (1)

A multifunctional freezer comprising a tube cold freezing device, an air cooled freezing device and a freezing/storage system; the tube cold freezing device comprising a tube cold compressor and a tube cold condenser having a fan a tube cold storage device, a tube cold heat exchanger composed of an outer barrel body and an inner barrel body, a first refrigerating solenoid valve, one or more expansion valves, and one or more disposed in the freezing/storage chamber a tube-cooled evaporator, wherein the first passage, the second passage, the third passage, the fourth passage and the fifth passage are connected to form a closed loop capable of providing refrigerant circulation flow; the air-cooled refrigeration device includes a gas-cooled compression Machine, a defrost solenoid valve, a second refrigerating solenoid valve, an air-cooled condenser provided with a fan, an air-cooled heat exchanger composed of an outer barrel and an inner barrel, and a third expansion valve, and An air-cooled evaporator disposed in the freezing/storage warehouse and comprising a box body, a plurality of fans, a copper tube row, a drain pipe and a water collecting plate, and adopting a sixth passage, a seventh passage, an eighth passage, The ninth passage and the tenth passage are connected to form The closed loop of the refrigerant circulating flow can be provided; the freezing/reservoir has a temperature switch inside the library provided with a first contact, a second contact and a third contact, and a first connection is provided a selection switch of a point, a second contact, a third contact, a fourth contact, a fifth contact and a sixth contact, and a first contact, a second contact and a a setting timer of the third contact, a micro switch having a first contact and a second contact, a library door relay provided with a contact, a time delay relay provided with a contact, and a fixed connection Defrosting timer with a first contact and a second contact, a defrost switch having a coil, a first contact, a second contact, a third contact and a fourth contact a contactor, a defrosting return temperature switch with a third contact and a first contact and a second contact, a high and low pressure switch for cold, a solenoid switch coil for a cold compressor, and a cold compression for a tube Electromagnetic switch overload protector, high and low pressure switch for air cooling, electromagnetic switch coil for one air cooled compressor, Cold compressor electromagnetic open An overload protector and a power switch; the power switch and the tube cold compressor, the air-cooled compressor, the third contact of the temperature switch in the library, the set timer, the first contact and the second contact of the micro switch, Kumen relay, contact of time delay relay, defrost timer, coil and second contact of defrost conversion contactor, electromagnetic switch overload protector of tube cold compressor, electromagnetic switch overload protector of air-cooled compressor, first a freezing electromagnetic valve, a fan of the tube cooling condenser, and a defrosting electromagnetic valve are electrically connected; the first contact of the temperature switch is electrically connected to the first contact and the second contact and the third contact of the selection switch respectively; The fourth contact of the selection switch is electrically connected with the contact of the library door relay and the second contact of the set timer; the fifth contact of the selection switch is respectively associated with the high and low pressure switch for air cooling, the defrost timer, and the 2. The refrigerating solenoid valve, the fan of the air-cooled condenser, the fan of the box, the first contact of the micro switch, the contact of the time delay relay, the first contact of the library door relay and the set timer; the selection switch Sixth contact and design The third contact of the timer is electrically connected; the first contact of the timer is set with the high and low pressure switch for air cooling, the defrost timer, the second refrigerating solenoid valve, the fan of the air-cooled condenser, and the fan of the box Electrical connection; high and low pressure switch for air cooling is electrically connected with electromagnetic switch coil of air-cooled compressor, electromagnetic switch coil of air-cooled compressor is electrically connected with electromagnetic switch overload protector of air-cooled compressor; The contact between the second contact and the Kumen relay and the fourth contact of the selection switch are electrically connected; the contact of the Kumen relay is respectively combined with the first refrigerating solenoid valve, the high and low pressure switch for the tube cooling and the fan of the tube cold condenser Electrical connection; the tube cold high and low pressure switch is electrically connected with the tube cold compressor electromagnetic switch coil, and the tube cold compressor electromagnetic switch coil is electrically connected with the tube cold compressor electromagnetic switch overload protector; the micro switch is set at The inlet of the freezing/storage, and the opening of the first contact circuit of the micro switch due to the opening of the library door and the opening of the second contact circuit of the micro switch due to the closing of the library door; Off the first contact contacts a first timer set respectively, the fifth selection switch contacts, with a low pressure air-cooled Switch, defrost timer, second refrigerating solenoid valve, fan of air-cooled condenser, fan of box body, contact of time delay relay, electrical connection of library door relay; fan of second refrigerating solenoid valve, air-cooled condenser The fan of the box is electrically connected to the second contact and the fourth contact of the defrost conversion contactor respectively; the fourth contact of the defrost conversion contactor is electrically connected to the second contact of the defrost timer; The fixed contact of the defrost timer and the second contact of the defrost conversion contactor, the air-cooled compressor electromagnetic switch overload protector, the condenser fan, the tube cold compressor electromagnetic switch overload protector, the first refrigerated electromagnetic The valve, the setting timer, the tube cold compressor, the air cooling compressor, the library door relay and the time delay relay are electrically connected; the second contact of the micro switch is electrically connected with the time delay relay; the contact of the time delay relay is respectively and the gas Cold high and low pressure switch, defrost timer, second refrigerating solenoid valve, fan of air-cooled condenser, fan of cabinet, electrical connection of library door relay; defroster solenoid valve and defrosting conversion contactor Three And the coil of the defrosting conversion contactor is electrically connected; the third contact of the defrosting conversion contactor is respectively connected with the first contact of the defrosting timer, the first contact of the defrosting conversion contactor, and the defrosting return temperature The third contact of the switch is electrically connected; the coil of the defrosting switch contactor is electrically connected to the first contact of the defrosting switch contactor, the defrosting solenoid valve and the first contact of the defrosting return temperature switch; The first contact of the defrosting switch contactor is electrically connected to the third contact of the defrosting return temperature switch, the third contact of the defrosting switch contactor, and the first contact of the defrost timer, respectively.