CN111397283A

CN111397283A - Bottom-mounted drainage evaporation device of refrigerator

Info

Publication number: CN111397283A
Application number: CN202010145988.6A
Authority: CN
Inventors: 邹振东
Original assignee: Donjon Kitchen Tools Metal Suzhou Co ltd
Current assignee: Donjon Kitchen Tools Metal Suzhou Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-07-10

Abstract

The invention discloses a bottom-mounted drainage evaporation device of a refrigerator, which comprises an evaporation box, wherein a heater is fixedly arranged in the evaporation box, a temperature protection component and a heating control component for controlling the switch of the heater are arranged at the outer end of the evaporation box, the heating control component comprises a water level monitor and a switch controller, the water level monitor is connected with the switch controller, the water level monitor is fixedly arranged in the evaporation box, the heater is respectively connected with the temperature protection component and the switch controller, and an opening part is arranged at the upper side end of the evaporation box. The invention relates to an evaporation device, in particular to a bottom-mounted drainage evaporation device of a refrigerator, and belongs to the technical field of defrosting water treatment of the refrigerator. The invention prevents the aging of the heater, the temperature fuse, the corrosion of each component by the defrosting water and prolongs the service life of the drainage device by additionally arranging the evaporation device with the heating protection controller at the bottom of the refrigerator.

Description

Bottom-mounted drainage evaporation device of refrigerator

Technical Field

The invention relates to an evaporation device, in particular to a bottom-mounted drainage evaporation device of a refrigerator, and belongs to the technical field of defrosting water treatment of the refrigerator.

Background

A vertical commercial refrigerator, in which a cooler is disposed on a ceiling portion in a refrigerator main body, a drain pan for receiving defrosted water is provided on a lower surface of the refrigerator main body, a drain pipe connected to the drain pan penetrates a wall surface of a storage main body to protrude to a back surface, an evaporation tank equipped with an immersion Heater (jacket Heater) is installed below the drain pan, and when a defrosting operation is performed, the defrosted water drops from the drain pipe after being received by the drain pan, is stored in the evaporation tank, and is evaporated and discharged by being heated by the Heater;

in this drain water evaporation device, a so-called dry burning prevention measure is required, in the above-described conventional example, a liquid expansion type thermostat is directly attached to the upper surface of the sheath heater, and when the temperature of the attachment surface of the thermostat of the heater rapidly rises to reach a predetermined temperature after the evaporation of drain water progresses and the attachment surface is released from the immersed state, the thermostat is turned off by detecting the above-described situation, that is, when the energization of the heater is turned off and then the attachment surface falls below the predetermined temperature, the thermostat is turned on to bring the heater into a state in which the energization is possible;

however, in the above-described dry burning prevention system, as the accumulation and evaporation of the drain water are repeated in the evaporation tank, the water surface of the drain water fluctuates up and down on the contact surface between the temperature sensing cylinder of the thermostat and the heater, and thus corrosion of dissimilar metals by contact may be caused;

in the above-described conventional example, a thermal fuse is attached to a cover plate covering an upper surface opening of an evaporation box, and the thermal fuse is cut by fusing when a detected temperature reaches a predetermined value, thereby cutting off power supply to a heater;

here, the temperature fuse does not operate (cut) until the thermostat is cut, that is, the temperature at which the temperature fuse is cut needs to exceed the appropriate operating temperature of the thermostat by a predetermined value or more, and when the temperature fuse is attached to the cover plate of the evaporation box as described above, it is expected that the temperature of the attached portion increases by about 110 ℃ when the thermostat is cut, and therefore, it is necessary to set the cutting temperature of the temperature fuse to a higher temperature than the predetermined value or more; as described above, during normal operation of the thermostat, the thermal fuse is repeatedly exposed to a high temperature of about 110 ℃, and this phenomenon is repeated many times, and the thermal fuse itself deteriorates, and may blow at a temperature lower than the appropriate temperature.

Disclosure of Invention

The invention aims to provide a bottom-mounted drainage evaporation device of a refrigerator, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a refrigerator bottom-mounted formula drainage evaporation plant, includes the evaporating case, fixed mounting has the heater in the evaporating case, the temperature protection part and the heating control part of control heater switch are installed to the evaporating case outer end, the heating control part includes water level monitor and on-off controller, water level monitor is connected with on-off controller, just water level monitor fixed mounting is inside the evaporating case, the heater is connected with temperature protection part and on-off controller respectively, the opening has been seted up to evaporating case top side.

As a preferred technical scheme of the invention, the water level monitor comprises a microswitch and a floater, a water level shifting sheet is fixedly connected to the floater, a switch for controlling the heater to start and stop is movably mounted on the microswitch, the water level shifting sheet drives the switch to move up and down, and the water level shifting sheet drives the microswitch to work and can be controlled by the height of the water level.

As a preferred technical scheme of the invention, a lowest water level line and a highest water level line are arranged in the evaporation box, the movable stroke of a switch on the micro switch is between the lowest water level line and the highest water level line, preferably, the strokes of the switch and the lowest water level line are the same, and the water level shifting piece can drive the micro switch to be opened and closed.

As a preferable technical solution of the present invention, an energization controller is fixedly connected to the micro switch, and the energization controller is connected to the heater.

As a preferable technical scheme of the invention, the opening parts are provided with a plurality of groups and are arranged around the upper end of the evaporation box, and the opening parts are fixedly provided with fans.

In a preferred embodiment of the present invention, at least one fan is provided and is fixedly attached to the opening port, and the fan is connected to the heating control member.

As a preferable technical scheme of the invention, the heating control component is specifically a temperature fuse, and a detection end arranged on the temperature fuse is arranged at the bottom end in the evaporation box, so that the water temperature is conveniently detected, and the situation that the temperature fuse cannot be detected due to too low water level is prevented.

As a preferable technical scheme of the invention, the fusing temperature of the temperature fuse is set to be 60 ℃, so that the water temperature is prevented from being too high.

As a preferable technical scheme, the refrigerator further comprises a refrigerator main body, a cooler is fixedly arranged in the refrigerator main body, a drain pan is arranged at the lower end of the cooler, the evaporation box is fixedly arranged at the bottom end of the refrigerator main body through a fixing piece, and the drain pan is connected with the inside of the evaporation box through a straight pipe.

As a preferred technical scheme of the invention, a drain bent pipe is additionally arranged between the straight pipe and the evaporation tank, and the drain bent pipe is U-shaped, so that part of defrosting water is remained on the drain bent pipe after passing through the drain bent pipe to form a water seal, and the storage chamber is prevented from being directly exposed to the outside air through a drain path.

Compared with the prior art, the invention has the beneficial effects that:

the invention prevents the aging of the heater, the temperature fuse, the corrosion of each component by the defrosting water and prolongs the service life of the drainage device by additionally arranging the evaporation device with the heating protection controller at the bottom of the refrigerator.

Drawings

FIG. 1 is a schematic view of the assembled structure of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic structural view of a heating control part according to the present invention.

In the figure: 1. a compressor; 2. a condenser fan; 3. a condenser; 4. a base station; 5. a window aperture; 6. a freezing device; 7. a suction inlet; 8. an in-warehouse fan; 9. a cooler; 10. a drain pan; 11. a drain pipe; 12. a drain elbow; 13. a straight pipe; 14. a storage chamber; 15. an insulated door; 16. a drain bend; 17. an evaporation tank; 18. a heater; 19. a temperature protection component; 20. a heating control part; 201. a power-on controller; 202. a microswitch; 203. a water level shifting sheet; 204. a float; 21. a refrigerator main body; 22. a machine room; 23. a cooler chamber; 24. an ejection port; 25. a front panel; 26. a rear panel; 27. a fan; 28. an opening portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a bottom-mounted drainage evaporator for a refrigerator, comprising an evaporation tank 17, a heater 18 fixedly installed in the evaporation tank 17, specifically, the heater 18 is installed at the bottom end of the evaporation tank 17, the heating effect is stable, the heating is uniform, the temperature on the side of the evaporation tank 17 is prevented from being too high, a temperature protection component 19 and a heating control component 20 for controlling the switch of the heater 18 are installed at the outer end of the evaporation tank 17, the heating control component 19 is specifically a temperature fuse, the temperature fuse sets the fusing temperature to 60 ℃, the effective operation environment of the component is normal at the temperature, the aging of the component is effectively prevented, the detection end of the temperature fuse is arranged at the bottom end in the evaporation tank 17, the water temperature is conveniently detected, the temperature fuse cannot be detected due to too low water level, the temperature of the defrosting water at the bottom end in the evaporation tank 17 is detected, the, the water level monitor is connected with the switch controller, the water level monitor is fixedly arranged in the evaporation tank 17 and comprises a micro switch 202 and a floater 204, a water level shifting sheet 203 is fixedly connected on the floater 204, a switch for controlling the start and stop of the heater 18 is movably arranged on the micro switch 202, a power-on controller 201 is fixedly connected on the micro switch 202, the power-on controller 201 is connected with the heater 18, the switch is driven by the water level shifting sheet 203 to do vertical opening and closing movement, the micro switch 202 and the power-on controller 201 are both fixed at the outer end of the evaporation tank 17, the water level shifting sheet 203 is arranged in the evaporation tank 17, a lowest water level line and a highest water level line are arranged in the evaporation tank 17, the switch moving stroke on the micro switch 202 is between the lowest water level line and the highest water level line, the heater 18 is respectively connected with the temperature protection part 19 and the, the opening part 28 is provided with a plurality of groups and is arranged around the upper end of the evaporation box 17, the opening part 28 is fixedly provided with at least one fan 27, the fans 27 are fixedly arranged at the port part of the opening part 28, the plurality of groups of the opening parts 28 are not completely provided with the fans 27, fresh air is required to enter the upper part inside the evaporation box 17, a convection part is formed above defrosting water in the evaporation box 17, and the fans 27 are connected with the heating control part 20.

Wherein, still include refrigerator main part 21, refrigerator main part 21 internal fixation is equipped with cooler 9, the 9 lower extremes of cooler are equipped with drain pan 10, evaporating chamber 17 passes through mounting fixed mounting in refrigerator main part 21 bottom, the mode such as screw fixation is passed through to evaporating chamber 17 upper end, drain pan 10 is connected with evaporating chamber 17 is inside through straight tube 13, it is equipped with drainage return bend 16 to add between straight tube 13 and the evaporating chamber 17, drainage return bend 16 is the U-shaped, there is the part to remain at drainage return bend 16 to form the water seal like this after defrosting water process drainage return bend 16, avoid storeroom 14 to directly expose in the outside air through the drainage route.

Wherein the refrigerator body 21 is composed of a long heat insulation box body with an opening on the surface, a storage chamber 14 is formed at the lower part of the inside, a heat insulation door 15 is installed at the front surface opening part of the storage chamber 14 in an opening and closing way, a mechanical chamber 22 surrounded by a wall plate is formed at the upper part of the refrigerator body 21, a freezing device 6 is arranged in the freezing device, the freezing device 6 comprises a compressor 1, an air-cooled condenser 3 provided with a condenser fan 2 and the like, and is installed on a base 4 with heat insulation to form a unit, a window hole 5 is opened between the upper part of the base 14 and the mechanical chamber 22, the base 4 is installed in a mode of blocking the window hole 5, a drain pan 10 which is also used as an air channel is paved at the lower part of the window hole 5 of the top plate part of the storage chamber 14, a cooler chamber 23 is formed between the upper part and the base 4, one end of the drain pan, an inlet 7 is opened above the slope, an outlet 24 is cut at the bottom of the slope, an in-house fan 8 is fixedly mounted at the port of the inlet 7, the in-house fan 8 sucks the air in the storage chamber 14 into a cooler chamber 23, the cooler 9 is connected to the refrigerating device 6 by a refrigerant pipe in a circulating manner to form a known refrigerating cycle, the compressor 1 of the refrigerating device 6 is operated to drive the in-house fan 2 to rotate, the indoor air in the storage chamber 14 is sucked into the cooler chamber 23 from the inlet 7, the air generates cold air by heat exchange while flowing through the cooler 9, the cold air is blown out from the outlet 24 along the inner surface of the storage chamber 14, the cold air is supplied to the storage chamber 14 in a circulating manner to cool, and the condenser fan 2 is also operated to suck the external air from an air inlet provided on the front panel 25 of the machine chamber 22 in accordance with the operation of the compressor 1, the air is cooled by the condenser 3 and the compressor 1, and the waste heat after cooling is discharged mainly to the back side of the refrigerator main body 21 from the exhaust ports provided in the rear panel 26 and the top panel 22 of the machine room 22, while a defrosting operation is appropriately performed to remove frost adhering to the cooler 9, the defrosting operation is performed by supplying electricity to a defrosting heater provided in the cooler 9 and heating the cooler 9, and the melted defrosting water is received by the drain pan 10, guided to the back surface of the refrigerator main body 14, enters the straight pipe 13 and the drain elbow pipe 16 through the drain pipe 11 and the drain elbow 12, flows into the evaporation device 17, accumulates, and is forcibly evaporated and discharged by continuing heating.

The working principle of the present invention will be explained in detail below: during the power-on operation, the defrosting heater arranged on the cooler 9 works to liquefy the frost on the surface of the cooler 9, the defrosting water enters the straight pipe 13 through the drain pipe 11 and the drain elbow 12, passes through the back of the storage chamber 14, enters the evaporation tank 17 through the drain elbow 16, the lowest water level line and the highest water level line are arranged in the evaporation tank 17, the spray opening 24 floats under the buoyancy, when the spray opening 24 reaches the highest water level line, the water level poking sheet 203 is driven to move upwards, the microswitch 202 is opened, the heater 18 is opened through the power-on controller 201 to heat the defrosting water in the evaporation tank 17, the fan 27 is operated at the same time of heating, a convection layer is formed above the defrosting water through the opening parts 28 arranged on the periphery above the evaporation tank 17, the fan 27 extracts the air above the defrosting water, the air outside the periphery is sucked through the opening parts 28, and the water vapor heated by the fan 18 is discharged, when the temperature protection component 19 detects that the water temperature is heated to exceed a preset value (60 ℃), the temperature protection component 19 controls the heater 18 to be powered off, when the water temperature is lower than the preset value, the heater 18 is continuously heated, in the process, the fan 27 is operated all the time, the evaporation of defrosting water is promoted, the water vapor is prevented from being condensed on the bottom plate of the refrigerator main body 21, the bottom plate of the refrigerator is corroded (generally, the bottom plate of the refrigerator is made of a galvanized plate, and the refrigerator is rusted due to long-time contact with water), because the temperature protection component 19 and the heating control component 20 are arranged on the outer surface of the evaporation box 17, the heater can be prevented from being aged due to corrosion and the like (the heater immersed in the defrosting water is directly provided with the heating control component), the storage volume is reduced along with the evaporation progress of drainage, the floater 204 falls back, when the floater 204 falls to the lowest water, and the fan 27 stops running, so that frequent starting and stopping of the heater 18 and the fan 27 are effectively avoided, the device is based on safety consideration, under the condition that the temperature protection component 19 breaks down, the heater 18 continuously heats, the fan 27 continuously runs, the defrosting water level drops to the state that the microswitch 202 is opened, the heater 18 is powered off, the potential safety hazard caused by dry burning of the heating pipe is prevented, and the safety of equipment is effectively protected.

In summary, the bottom-mounted drainage evaporator for the refrigerator of the present invention is provided with the evaporator with the heating protection controller, so as to prevent the heater from aging, prevent the temperature fuse from aging, prevent the components from being corroded by the defrosting water, and prolong the service life of the drainage device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a refrigerator bottom-mounted drainage evaporation plant, includes evaporating case (17), its characterized in that, fixed mounting has heater (18) in evaporating case (17), temperature protection part (19) and heating control part (20) of control heater (18) switch are installed to evaporating case (17) outer end, heating control part (20) include water level monitor and on-off controller, water level monitor is connected with on-off controller, just water level monitor fixed mounting is inside evaporating case (17), heater (18) are connected with temperature protection part (19) and on-off controller respectively, side opening (28) have been seted up to evaporating case (17) top.

2. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 1, wherein: the water level monitor comprises a microswitch (202) and a floater (204), a water level shifting sheet (203) is fixedly connected to the floater (204), a switch for controlling the heater (18) to start and stop is movably mounted on the microswitch (202), and the water level shifting sheet (203) drives the switch to perform vertical opening and closing movement.

3. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 2, wherein: and a lowest water level line and a highest water level line are arranged in the evaporation box (17), and the switch moving stroke on the microswitch (202) is between the lowest water level line and the highest water level line.

4. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 2, wherein: an electrifying controller (201) is fixedly connected to the microswitch (202), and the electrifying controller (201) is connected with the heater (18).

5. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 1, wherein: the opening part (28) is provided with a plurality of groups and is arranged around the upper end of the evaporation box (17), and the opening part (28) is fixedly provided with a fan (27).

6. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 5, wherein: the fan (27) is provided with at least one fan, the fan is fixedly installed at the port of the opening part (28), and the fan (27) is connected with the heating control part (20).

7. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 1, wherein: the heating control part (19) is specifically a temperature fuse, and a detection end arranged on the temperature fuse is arranged at the bottom end inside the evaporation box (17).

8. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 7, wherein: the temperature fuse sets the fusing temperature to 60 ℃.

9. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 1, wherein: still include refrigerator main part (21), refrigerator main part (21) internal fixation is equipped with cooler (9), cooler (9) lower extreme is equipped with drain pan (10), evaporating chamber (17) are through mounting fixed mounting in refrigerator main part (21) bottom, drain pan (10) are connected through straight tube (13) and evaporating chamber (17) inside.

10. A bottom-mounted drain evaporating device for a refrigerator as claimed in claim 9, wherein: a drainage bent pipe (16) is additionally arranged between the straight pipe (13) and the evaporation box (17), and the drainage bent pipe (16) is U-shaped.