CN212778130U - Refrigerating and freezing device - Google Patents

Abstract

The utility model relates to a cold-stored refrigeration device, it includes: a box body, wherein a cooling chamber and a storage chamber are defined in the box body; the evaporator is arranged in the cooling chamber and used for providing cold energy for the storage chamber; and the water-discharging gas-conveying composite pipe comprises a main pipe section and a bypass pipe section. The main pipe section extends out of the box body from the cooling chamber so that the defrosting water generated by the evaporator is discharged out of the box body through the main pipe section; the bypass pipe section extends outwards from a joint part of the main pipe section on the section between the two ends of the main pipe section, a fan which is controlled to rotate forwards or reversely is arranged inside the bypass pipe section, so that when the fan rotates forwards, air in the cooling chamber is driven to be discharged out of the box body through the section of the main pipe section between the cooling chamber and the joint part and the bypass pipe section to reduce energy consumption, when the fan rotates reversely, air outside the box body is driven to flow to the cooling chamber through the bypass pipe section and the section of the main pipe section between the cooling chamber and the joint part to improve the moisture preservation effect in the storage chamber, and the structure is simple.

Description

Refrigerating and freezing device

Technical Field

The utility model relates to a cold-stored refrigeration technique especially relates to a cold-stored refrigeration device.

Background

At present, the air-cooled refrigerator generally adopts a mode of arranging a defrosting heater below an evaporator to defrost the evaporator. After the refrigerator runs for a period of time, frost on the evaporator is accumulated to a certain degree, and the refrigerator can automatically start the defrosting heater to defrost the evaporator. Therefore, the power consumption of the air-cooled refrigerator consists of two parts, namely the power consumption during normal refrigerating operation of the air-cooled refrigerator and the power consumption generated by defrosting of the evaporator. However, the process of defrosting the evaporator generates a large amount of heat, when the defrosting is stopped, the temperature of the space (cooling chamber) where the evaporator is located is high, and a large amount of energy is consumed to remove the excess heat in the evaporator chamber during the cooling process after the compressor is started. Therefore, the energy consumption of the refrigerator additionally increases the power consumption for eliminating the excessive heat in the evaporator chamber in the refrigeration process. In addition, hot air generated during defrosting of the evaporator can enter the storage chamber of the refrigerator, so that the temperature in the storage chamber is increased, the fresh-keeping and freezing time of food is influenced, and meanwhile, the energy consumption required by the refrigerator for reducing the temperature in the storage chamber in the refrigerating process can be further increased.

Meanwhile, the humidity in the storage space of the refrigerator mainly depends on the evaporation of the moisture of the food materials, the moisture preservation capacity is limited, the moisture preservation effect is poor, and the fact that the moisture of the food materials is not excessively lost cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at overcoming current cold-stored refrigerating plant's at least one defect, provide a simple structure, moisturize effectual, the cold-stored refrigerating plant that the energy consumption is low.

A further object of the utility model is to improve the efficiency of moisturizing of cold-stored refrigeration device.

Another further object of the present invention is to avoid the loss of refrigeration capacity in a refrigeration chiller.

In order to achieve the above object, the present invention provides a refrigerating and freezing device, including:

a box body, wherein a cooling chamber and a storage chamber are defined in the box body;

the evaporator is arranged in the cooling chamber and used for providing cold energy for the storage chamber; and

the water and gas drainage composite pipe comprises a main pipe section and a bypass pipe section; wherein

The main pipe section extends from the cooling chamber to the outside of the tank body, so that the defrosting water generated by the evaporator is discharged to the outside of the tank body through the main pipe section;

the bypass pipe section extends outwards of the box body from a joint part of the main pipe section on a section between two ends of the main pipe section, a fan which is controlled to rotate forwards or reversely is arranged inside the bypass pipe section, so that when the fan rotates forwards, air in the cooling chamber is driven to be discharged out of the box body through the section of the main pipe section between the cooling chamber and the joint part and the bypass pipe section, and when the fan rotates reversely, air outside the box body is driven to flow to the cooling chamber through the bypass pipe section and the section of the main pipe section between the cooling chamber and the joint part.

Optionally, a moisture preservation drawer is arranged in the storage compartment, and an air supply outlet communicated with the cooling chamber is formed in the rear side of the moisture preservation drawer; the air supply port is provided with an air supply air door, so that the air supply port is selectively opened through the air supply air door to enable the cooling chamber to be communicated with the interior of the moisturizing drawer or the air supply port is closed to block the communication between the cooling chamber and the interior of the moisturizing drawer.

Optionally, the ends of the main pipe section and the bypass pipe section extending out of the box body are both positioned in a compressor bin of the refrigeration and freezing device; and is

The compressor bin is internally provided with a compressor and a water pan, and the tail end of the main pipe section, which extends out of the box body, extends into the water pan so as to collect defrosting water generated during defrosting of the evaporator into the water pan.

Optionally, the compressor bin is located below the cooling chamber, and the bypass pipe section extends obliquely downward from the joint.

Optionally, a support rib is connected between the lower section of the bypass pipe section and the main pipe section, and the support rib extends horizontally or extends from the main pipe section to the bypass pipe section obliquely and upwardly.

Optionally, the fan is disposed inside an end port of the bypass pipe section extending outward of the tank;

the refrigerated freezer also includes a controllable shutter mechanism disposed at the bypass section to selectively block and/or unblock the bypass section.

Optionally, the controllable shielding mechanism is a shielding plate arranged outside the end port of the bypass pipe section, and the shielding plate is pivotally connected with the fan to selectively shield and/or open the end port of the bypass pipe section.

Optionally, a sealing element is arranged on the inner side of the controllable shielding mechanism facing the fan, so that when the controllable shielding mechanism shields the end port of the bypass pipe section, the sealing element seals the end port of the bypass pipe section and the controllable shielding mechanism.

Optionally, a waterproof and air-permeable piece is arranged inside one end of the bypass pipe section connected with the joint part.

Optionally, the joint is located on a section of the main pipe section outside the tank, and the section of the main pipe section where the joint is located is convexly curved toward the direction of the bypass pipe section.

The utility model discloses a cold-stored refrigeration device is including having the drainage gas transmission composite pipe who is responsible for section and bypass pipeline section, and is responsible for the section and extend to outside the box by the cooling chamber, and the bypass pipeline section is from being responsible for a junction on the section and extending to the box outward, and is equipped with alternative forward rotation or reverse rotation's fan in the bypass pipeline section. When the fan rotates forwards, hot air generated by defrosting of the evaporator in the cooling chamber can be discharged to the outside of the box body through the partial section of the main pipe section and the bypass pipe section, and then is dissipated to the environment space, the influence of the defrosting operation of the evaporator on the temperature in the storage room is reduced, the time for recovering the refrigerating temperature when the storage room is refrigerated again is shortened, and the energy consumption of the refrigerating and freezing device is reduced.

Because the bypass pipe section provided with the fan is communicated with the main pipe section through the joint part, the humidity of the space where the tail end of the main pipe section for discharging the defrosting water is positioned is higher. Therefore, when humidification or moisture preservation is needed in the storage room, the fan can rotate reversely to enable the high-humidity ambient air outside the box body to flow to the cooling room through the bypass pipe section and the partial section of the main pipe section, so that negative pressure can be generated at the position of the joint, and under the action of the negative pressure, the high-humidity air in the space where the tail end of the main pipe section is located flows to the cooling room through the main pipe section, so that moisture is conveyed to the storage room through cooling air flow, and the moisture preservation effect in the storage room is improved. In addition, the structure of the box body of the existing refrigerating and freezing device is not required to be changed, and the structure of the refrigerating and freezing device is simplified.

Further, the tail end of the bypass pipe section extends into the compressor bin, and the compressor bin is internally provided with components with larger heat generation quantity, such as a compressor, and therefore the temperature in the compressor bin is usually higher. In the end of being responsible for the section stretched into the water collector, the evaporation of defrosting water in the water collector made the humidity in the compressor storehouse higher, further improved the humidity in the space that the end of bypass pipeline section was located, when the fan reversal, can carry the higher air current of humidity to the cooling chamber to improve the humidity in the storing space fast, improved cold-stored refrigerating plant's the efficiency of moisturizing.

Further, this application sets up controllable shielding mechanism at bypass pipeline section department, can block the bypass pipeline section through controllable shielding mechanism when the fan does not operate, avoids the cold volume in the cooling chamber to leak through the bypass pipeline section.

Furthermore, the sealing element is further arranged on the inner side of the controllable shielding mechanism, so that the sealing between the controllable shielding mechanism and the tail end port of the bypass pipe section can be further enhanced when the controllable shielding mechanism shields the tail end port of the bypass pipe section, and the cold loss of the refrigerating and freezing device is thoroughly avoided.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

figure 1 is a schematic side view of a refrigeration and freezing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of a drainage gas delivery manifold according to an embodiment of the present invention;

fig. 3 and 4 are schematic structural views of the controllable shielding mechanism and the fan in different states according to an embodiment of the present invention;

figure 5 is a schematic side view of a refrigeration and freezing apparatus according to another embodiment of the present invention;

fig. 6 and 7 are a schematic side view and a schematic front perspective view, respectively, of a refrigerating and freezing apparatus according to yet another embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic side view of a refrigeration and freezing apparatus according to an embodiment of the present invention. Referring to fig. 1, the refrigerating and freezing apparatus 1 according to the present invention includes a box 10. A cooling chamber 130 and a storage compartment 110 for storing articles are defined in the cabinet. In the embodiment shown in fig. 1, the number of storage compartments 110 is one. In other embodiments, the number of storage compartments 110 may be two, or may be three or more. Specifically, the container body 10 may include an inner container and an outer container, and a heat insulating layer is formed between the inner container and the outer container, so that heat is formed between the inside and the outside of the container body to isolate the inner container from the outer container, thereby facilitating the storage compartment to maintain a low-temperature storage environment. The enclosure may include side panels on either side of the refrigerator-freezer 1, a bottom steel at the bottom of the refrigerator-freezer 1, and a back panel at the rear of the refrigerator-freezer 1. The refrigerating and freezing device 1 further comprises an evaporator 20, and the evaporator 20 is arranged in the cooling chamber 130 and is used for providing cold energy for the storage compartment 110. The evaporator 20 cools the air flowing from the storage compartment 110 into the cooling chamber 130, and forms a cooling airflow to be supplied to the storage compartment 110. The refrigerating and freezing device 1 may further include a blower fan disposed in the cooling compartment 130 to promote circulation of air between the storage compartment and the cooling compartment 130.

In particular, the refrigerating and freezing apparatus 1 further includes a water and gas transport composite pipe 40. Fig. 2 is a schematic structural view of a drainage and gas transmission composite pipe according to an embodiment of the present invention. Referring to fig. 1 and 2, the water and gas drainage composite pipe 40 includes a main pipe section 41 and a bypass pipe section 42. The main pipe section 41 extends from the cooling chamber 130 to the outside of the cabinet 10, so that the defrosting water generated by the evaporator 20 is discharged to the outside of the cabinet 10 through the main pipe section 41. The bypass pipe segment 42 extends from a junction 413 of the main pipe segment 41 between both ends thereof to the outside of the cabinet 10, the bypass pipe segment 42 is provided inside with a fan 43 controlled to rotate forward or reverse to drive the air in the cooling chamber 130 to be discharged to the outside of the cabinet 10 through a section of the main pipe segment 41 between the cooling chamber 130 and the junction 413 and the bypass pipe segment 42 when the fan 43 rotates forward, and to drive the air outside the cabinet 10 to flow to the cooling chamber 130 through the bypass pipe segment 42 and a section of the main pipe segment 41 between the cooling chamber 130 and the junction 413 when the fan 43 rotates reverse.

That is, the bypass pipe section 42 is provided with the fan 43 which can be selectively rotated in the forward direction or in the reverse direction. When the fan 43 rotates forward, the hot air generated by defrosting the evaporator 20 in the cooling chamber 130 can be discharged to the outside of the cabinet 10 through the partial section of the main pipe section 41 and the bypass pipe section 42, and then dissipated to the environment space, so that the influence of the defrosting operation of the evaporator 20 on the temperature in the storage compartment 110 is reduced, and when the storage compartment 110 is cooled again after the defrosting of the evaporator 20 is finished, the temperature in the storage compartment 110 can be recovered to the temperature before the defrosting in a short time, so that the energy consumption of the refrigerating and freezing device 1 is reduced.

Since the bypass pipe section 42 provided with the blower fan 43 communicates with the main pipe section 41 through the joint 413, the space where the end 412 of the main pipe section 41 for discharging the defrosted water is located has a large humidity. Therefore, when humidification or moisture retention is required in the storage compartment 110, the fan 43 can rotate in the opposite direction to force the high-humidity ambient air outside the housing 10 to flow to the cooling compartment 130 through the bypass pipe segment 42 and the partial segment of the main pipe segment 41, so that a negative pressure can be generated at the position of the joint 413, and under the action of the negative pressure, the high-humidity air in the space where the tail end of the main pipe segment 41 is located flows to the cooling compartment 130 through the main pipe segment 41, so that moisture is transported to the storage compartment 110 through the cooling airflow, and the moisture retention effect in the storage compartment 110 is improved.

Moreover, the simple improvement is carried out on the existing drain pipe structure, the functions of the drain pipe structure can be expanded to a plurality of aspects such as discharging hot air generated by defrosting of an evaporator, conveying high-humidity air flow and high-temperature air flow to the storage chamber, good water and air discharging and conveying effects are achieved, the structure of the refrigerating and freezing device 1 is very simple, the box body structure of the existing refrigerating and freezing device 1 is not required to be changed, the heat insulation performance of the refrigerating and freezing device 1 is guaranteed, and therefore the energy consumption of the refrigerating and freezing device 1 is really reduced.

In addition, when the evaporator 20 starts defrosting, the fan 43 can be controlled to rotate reversely, so that the ambient air with higher temperature outside the box body 10 flows to the cooling chamber 130 through the drainage and air delivery composite pipe 40, and the ambient air is used for assisting defrosting of the evaporator 20, thereby improving the defrosting efficiency of the evaporator 20.

Specifically, the bottom wall 132 of the cooling chamber 130 may include several slopes extending obliquely downward from the circumferential edge thereof to the middle thereof, and the drain port 131 is formed at the intersection or lowest end of the several slopes. The main tube section 41 communicates with the drain 131 and thus with the cooling chamber 130. The main pipe section 41 can extend to the outside of the box body through the heat insulation layer formed between the inner container and the bottom steel of the shell. The main pipe section 41 and the bypass pipe section 42 of the combined drainage and gas transmission pipe 40 can be integrally formed, i.e., the combined drainage and gas transmission pipe 40 is a pipe having a main body part and a bypass branch. In other embodiments of the present invention, the water and gas discharging composite pipe 40 can be formed by two independent single pipes through fixed connection in a suitable manner, for example, the main pipe section 41 can be fixedly connected with the bypass pipe section 42 through welding or insertion fitting.

In some embodiments, the ends of the main tube section 41 and the bypass tube section 42 extending outside the box 10 are both located within a compressor compartment 140 of the refrigerated freezing apparatus 1, and the compressor compartment 140 is in communication with the ambient space. The compressor 50 and the water pan 60 are disposed in the compressor compartment 140, and the end 412 of the main pipe section 41 extending out of the casing 10 extends into the water pan 60, so as to collect the defrosting water generated during defrosting of the evaporator 20 into the water pan 60. Since the compressor 50 and other components having a large heat generation amount are disposed in the compressor compartment 140, the temperature therein is generally high. The end 412 of the main pipe section 41 extends into the water pan 60, and the defrosting water in the water pan 60 evaporates to make the humidity in the compressor bin 140 higher, so as to further improve the humidity in the space where the end 422 of the bypass pipe section 42 is located. When the fan 43 is reversely rotated due to the moisture retention requirement, the air flow with high humidity in the compressor compartment 140 can be conveyed to the cooling chamber 130, so that the humidity in the storage space 110 is rapidly increased, and the moisture retention efficiency of the refrigerating and freezing device 1 is improved. When the fan 43 needs to be rotated reversely due to defrosting of the evaporator 20, the air flow with high temperature in the compressor bin 140 can be conveyed to the cooling chamber 130, so that auxiliary defrosting is performed on the evaporator 20, and the defrosting efficiency of the evaporator 20 is further improved.

Specifically, the water tray 60 may be disposed above the compressor 50 to accelerate evaporation of the defrosted water collected in the water tray 60 by using heat generated when the compressor 50 operates. In other embodiments, the position of the water receiving tray 60 is not limited to above the compressor 50, for example, the water receiving tray 60 may be located beside the compressor 50 to drain or evaporate the defrosted water collected in the water receiving tray 60 in other manners.

Further, the compressor bin 140 may be located below the cooling chamber 130. The bypass pipe section 42 extends obliquely downward from the joint 413 to prevent the defrosted water in the main pipe section 41 from entering the bypass pipe section 42 through the joint 413, so as to prevent the gas transmission and drainage functions of the drainage and gas transmission composite pipe 40 from interfering or influencing each other. The end 422 of the bypass pipe section 42 extending obliquely downwards enables the air outlet direction of the bypass pipe section 42 to be obliquely downwards and the air inlet direction to be obliquely upwards, so that the problems that the exhaust of the bypass pipe section 42 is not smooth and the air inlet amount is small and the like caused by the fact that the air outlet direction and the air inlet direction of the bypass pipe section 42 are opposite to the box body are solved.

In some embodiments, a support rib 44 is connected between the lower section of the bypass pipe section 42 and the main pipe section 41, so as to support the lower portion of the bypass pipe section 42 through the support rib 44, and avoid the influence of loose fixation or downward swinging and tilting of the bypass pipe section 42 after long-time use on the sealing communication between the bypass pipe section 42 and the main pipe section 41.

Further, the support ribs 44 extend horizontally or obliquely upward from the main pipe section 41 to the bypass pipe section 42 to enhance the support effect and stability of the support ribs 44.

In some embodiments, the blower 43 is disposed inside the end port of the bypass pipe section 42 extending out of the box 10, that is, the blower 43 is disposed inside the bypass pipe section 42 without interfering with other structures, and the blower 43 is disposed at the end of the bypass pipe section 42 for easy disassembly and maintenance.

Further, the refrigerator freezer 1 further comprises a controllable shielding mechanism 45 arranged at the bypass duct section 42 for selectively blocking and/or conducting the bypass duct section 42. Specifically, when the fan 43 needs to operate, the controllable shielding mechanism 45 can be controlled to conduct the bypass pipe section 42; when the fan 43 does not need to operate, the controllable shielding mechanism 45 can be controlled to block the bypass pipe section 42, so that the cold energy in the cooling chamber 130 is prevented from leaking through the bypass pipe section 42.

Fig. 3 and 4 are schematic structural diagrams of the controllable shielding mechanism and the fan in different states according to an embodiment of the present invention. Specifically, the controllable shielding mechanism 45 may be a shielding plate disposed outside the port at the distal end 422 of the bypass tube segment 42, which is pivotally connected to the blower 43 to selectively shield and/or open the port at the distal end 422 of the bypass tube segment 42. In the condition shown in FIG. 3, the shield shields the end 422 of the bypass tube 42; in the condition shown in FIG. 4, the shutter opens the end 422 of the bypass tube section 42. The shield blocks the port at the end 422 of the bypass tube section 42 from communicating with the ambient space, and the shield unblocks the port at the end 422 of the bypass tube section 42 to communicate between the bypass tube section 42 and the ambient space.

Further, the inner side of the controllable shielding mechanism 45 facing the fan 43 is provided with a sealing element 46, so that when the controllable shielding mechanism 45 shields the end port of the bypass pipe section 42, the sealing between the controllable shielding mechanism 45 and the end port of the bypass pipe section 42 is realized through the sealing element 46, thereby further enhancing the sealing between the two and thoroughly avoiding the loss of the cooling capacity of the refrigerating and freezing device 1.

In alternative embodiments, the controllable masking mechanism 45 may also be other suitable components capable of selectively opening and/or closing the bypass duct section 42, for example, the controllable masking mechanism 45 may be a controllable damper disposed inside the bypass duct section 42.

In some embodiments, a waterproof and air permeable member 47 is provided inside the end of the bypass pipe section 42 connected to the joint 413 to prevent the defrost water from flowing to the bypass pipe section 42 through the joint 413. The waterproof breathable member 47 may be a waterproof breathable film or a waterproof breathable net, for example.

In some embodiments, junction 413 is located on a section of main tube segment 41 that is outside of enclosure 10. Since the main pipe section 41 extends from the cooling chamber 130 to the outside of the cabinet 10, it necessarily passes through the insulation of the cabinet 10. That is, a partial section of the main pipe section 41 is located inside the cabinet 10 and is in close abutting contact with the insulation layer of the cabinet 10, and the other sections of the main pipe section 41 are exposed outside the cabinet 10. In order to locate the entire bypass pipe section 42 outside the housing 10, the joint 413 is disposed on the section of the main pipe section 41 outside the housing 10, so that the assembly of the composite drain/gas pipe 40 is simplified without damaging the insulation of the housing.

Further, the section of the main pipe section 41 where the joint 413 is located is convexly curved toward the direction of the bypass pipe section 42 to reduce the amount of water guided by the inner wall of the main pipe section 41 on the side where the joint 413 is located, thereby further preventing the defrosting water from entering the bypass pipe section 42 through the joint 413.

In some embodiments, the refrigerating and freezing apparatus 1 further includes a defrost heater 70 disposed adjacent to the evaporator 20 to heat defrost the evaporator 20. Specifically, the defrosting heater 70 may be an electric heating wire. The defrost heater 70 is preferably disposed adjacent below the evaporator 20 such that the defrost heater 70 is located above the main tube section of the combined drain and gas transfer tube 40. Therefore, the air flow sent into the cooling chamber 130 through the water and air discharging composite pipe 40 flows through the defrosting heater 70 and then flows through the evaporator 20, so that the heat generated by the defrosting heater 70 is conveniently and uniformly and quickly blown to the evaporator 20, the defrosting efficiency and uniformity of the evaporator 20 are further improved, and the problems of quick defrosting at the lower part and slow defrosting at the upper part of the evaporator 20 are avoided.

Fig. 5 is a schematic side view of a refrigeration and freezing apparatus according to another embodiment of the present invention. In some embodiments, a moisture preservation drawer 111 may be disposed in the storage compartment 110, and an air supply outlet 112 communicated with the cooling compartment 130 is opened at the rear side of the moisture preservation drawer 111; an air supply damper 113 is provided at the air supply port 112 to selectively open the air supply port 112 through the air supply damper 113 to communicate the cooling chamber 130 with the inside of the moisture preserving drawer 111, or close the air supply port 112 to block the communication between the cooling chamber 130 and the inside of the moisture preserving drawer 111. Specifically, when the cooling air flow is required in the moisture preserving drawer 111 to maintain a low storage temperature therein, the air supply damper 113 may be controlled to open the air supply opening 112, and the cooling air flow in the cooling chamber 130 may be supplied to the interior of the moisture preserving drawer 111 through the air supply opening 112. When the moisture preservation or humidification is needed in the moisture preservation drawer 111, the air supply damper 113 can be controlled to open the air supply opening 112, and the fan 43 is controlled to rotate reversely, so that high-humidity air flow with high humidity in the environmental space is sent to the cooling chamber 130 through the water and air discharging and conveying composite pipe 40, and further sent to the moisture preservation drawer 111 through the air supply opening 112. That is, it is possible to selectively supply a cooling air flow into the moisturizing drawer 111 to maintain the temperature inside the moisturizing drawer 111 or supply a high humidity air flow into the moisturizing drawer 111 to maintain the humidity inside the moisturizing drawer 111. When the cooling air flow and the high humidity air flow are not necessary in the moisturizing drawer 111, the air supply damper 113 closes the air supply opening 112. In this case, the moisturizing drawer 111 is a relatively closed space, and the highly humid air therein does not return to the cooling chamber 130, thereby preventing the evaporator 20 from being frosted more seriously.

It will be appreciated that the moisture preserving drawer 111 is typically in an environment at a temperature above zero, and therefore the storage compartment 110 in which it is located is typically a refrigeration compartment.

Fig. 6 and 7 are a schematic side view and a schematic front perspective view, respectively, of a refrigerating and freezing apparatus according to yet another embodiment of the present invention. In some embodiments, the number of storage compartments 110 may be two, in which case, the two storage compartments 110 may be a refrigerating compartment and a freezing compartment, respectively, and the refrigerating compartment is generally located above the freezing compartment. The refrigerating and freezing apparatus 1 having two or more storage compartments 110 may be a single system or a dual system. Both the refrigeration and freezing apparatus shown in fig. 6 and 7 are dual systems. In the case of the single-system refrigerating and freezing apparatus 1, there is only one evaporator 20, and the evaporator 20 is disposed in the cooling compartment 130 located on the rear side of the freezing compartment. The two-system refrigerating and freezing apparatus 1 has two evaporators 20, and the two evaporators 20 are provided in a refrigerating and cooling chamber located on the rear side of the refrigerating chamber and a freezing and cooling chamber located on the rear side of the freezing chamber, respectively. Each cooling chamber is in communication with the ambient space through a combined water and gas removal conduit 40. When each water and gas discharging composite pipe 40 is communicated with the compressor bin, part of the main pipe section of the water and gas discharging composite pipe 40 above can penetrate through the heat insulation layer on the rear side of the box body to extend to the cooling chamber above. Since the other specific structure and manner of communicating each cooling chamber with the ambient space through a water and gas transporting composite pipe 40 are similar to those of the above-described embodiments, they will not be described in detail herein.

It will be appreciated by those skilled in the art that the refrigerating and freezing device 1 of the present invention may be a refrigerator, a freezer, a wine chest, a cold storage tank or other device with refrigerating or freezing functions.

It should be further understood by those skilled in the art that the terms "upper", "lower", "front", "rear", and the like used in the embodiments of the present invention are used with reference to the actual usage state of the refrigeration and freezing apparatus 1, and these terms are only used for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the apparatus referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A refrigeration freezer apparatus, comprising:

a box body, wherein a cooling chamber and a storage chamber are defined in the box body;

the evaporator is arranged in the cooling chamber and used for providing cold energy for the storage chamber; and

the water and gas drainage composite pipe comprises a main pipe section and a bypass pipe section; wherein

The main pipe section extends from the cooling chamber to the outside of the tank body, so that the defrosting water generated by the evaporator is discharged to the outside of the tank body through the main pipe section;

the bypass pipe section extends outwards of the box body from a joint part of the main pipe section on a section between two ends of the main pipe section, a fan which is controlled to rotate forwards or reversely is arranged inside the bypass pipe section, so that when the fan rotates forwards, air in the cooling chamber is driven to be discharged out of the box body through the section of the main pipe section between the cooling chamber and the joint part and the bypass pipe section, and when the fan rotates reversely, air outside the box body is driven to flow to the cooling chamber through the bypass pipe section and the section of the main pipe section between the cooling chamber and the joint part.

2. A refrigerator-freezer according to claim 1,

a moisture preservation drawer is arranged in the storage compartment, and an air supply outlet communicated with the cooling chamber is formed in the rear side of the moisture preservation drawer; the air supply port is provided with an air supply air door, so that the air supply port is selectively opened through the air supply air door to enable the cooling chamber to be communicated with the interior of the moisturizing drawer or the air supply port is closed to block the communication between the cooling chamber and the interior of the moisturizing drawer.

3. A refrigerator-freezer according to claim 1,

the tail ends of the main pipe section and the bypass pipe section extending out of the box body are both positioned in a compressor bin of the refrigerating and freezing device; and is

The compressor bin is internally provided with a compressor and a water pan, and the tail end of the main pipe section, which extends out of the box body, extends into the water pan so as to collect defrosting water generated during defrosting of the evaporator into the water pan.

4. A refrigerator-freezer according to claim 3,

the compressor housing is located below the cooling chamber, and the bypass pipe section extends obliquely downward from the joint.

5. A refrigerator-freezer according to claim 4,

and a support rib is connected between the lower section of the bypass pipe section and the main pipe section, and the support rib extends horizontally or upwards from the main pipe section to the bypass pipe section in an inclined manner.

6. A refrigerator-freezer according to claim 1,

the fan is arranged on the inner side of the end port of the bypass pipe section, which extends out of the box body;

the refrigerated freezer also includes a controllable shutter mechanism disposed at the bypass section to selectively block and/or unblock the bypass section.

7. A refrigerator-freezer according to claim 6,

the controllable shielding mechanism is a shielding plate arranged on the outer side of the tail end port of the bypass pipe section, and the shielding plate is connected with the fan in a pivoting mode so as to selectively shield and/or open the tail end port of the bypass pipe section.

8. A refrigerator-freezer according to claim 7,

and a sealing piece is arranged on the inner side of the controllable shielding mechanism facing the fan, so that when the controllable shielding mechanism shields the tail end port of the bypass pipe section, the sealing piece is used for realizing the sealing between the controllable shielding mechanism and the tail end port of the bypass pipe section.

9. A refrigerator-freezer according to claim 1,

and a waterproof and breathable piece is arranged inside one end of the bypass pipe section, which is connected with the joint part.

10. A refrigerator-freezer according to claim 1,

the joint is located on a section of the main pipe section outside the tank body, and the section of the main pipe section where the joint is located is convexly bent towards the direction of the bypass pipe section.

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