CN214536998U

CN214536998U - Refrigerating and freezing device

Info

Publication number: CN214536998U
Application number: CN202023263197.8U
Authority: CN
Inventors: 周生平; 梁星; 李鹏辉
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Chongqing Haier Refrigeration Electric Appliance Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Chongqing Haier Refrigeration Electric Appliance Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-29
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to a cold-stored refrigeration device, it includes: the refrigerator comprises a box body, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein an evaporator chamber for arranging an evaporator and a defrosting heater is defined in the box body; and the heat absorption defrosting piece is arranged at the water outlet and is arranged at a distance from the defrosting heater so as to absorb at least part of radiation heat generated by the defrosting heater after the defrosting heater is started, so that the at least part of radiation heat is utilized to prevent the water outlet from being blocked by ice. After the defrosting heater is started, the heat absorption defrosting piece can quickly absorb at least part of radiant heat generated by the defrosting heater and transmit the radiant heat to the water outlet, so that the speed of transmitting the radiant heat to the water outlet is increased, the total amount of the radiant heat transmitted to the water outlet is increased, the frost at the water outlet is preferentially and timely melted, and the problem that the water outlet is blocked by ice or the defrosting water is overflowed is avoided. In addition, special heating wires do not need to be additionally arranged or the defrosting time is prolonged, and the energy consumption is low.

Description

Refrigerating and freezing device

Technical Field

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

Background

An air-cooled refrigerator is one type of refrigerator, and a fan is used to force cool air to form a convection circulation during refrigeration. On one hand, the cold air in convection circulation continuously takes away the heat of the food, thereby indirectly refrigerating or freezing the food; on the other hand, the water evaporated from the food is also taken away. When cold air passes through the evaporator, moisture carried in the cold air is frozen on the surface of the pipeline of the evaporator and the fins of the evaporator to form a frost layer. The presence of frost will deteriorate the cooling performance of the air-cooled refrigerator and even block the circulation of air, thereby causing malfunction. Therefore, in order to ensure the normal operation of the air-cooled refrigerator, the defrosting heater is required to be used for defrosting periodically. Meanwhile, a water receiving tray is arranged at the bottom and used for collecting and discharging defrosting water.

However, when the defrosting water in the water pan starts to cool without being drained completely, the water drain of the water pan is blocked by ice, so that the subsequently generated defrosting water cannot be effectively drained. In the prior art, two modes are generally adopted to avoid the problems, namely, the defrosting time of the defrosting heater is prolonged, and the heating wire of the defrosting heater is led to the vicinity of the water outlet or a new heating wire is directly added in the vicinity of the water outlet. However, in either way, the power consumption of the refrigerator is increased, resulting in higher energy consumption of the refrigerator.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome at least one defect among the prior art, provide a lower cold-stored refrigeration device of power consumption for can preventing that the outlet from producing ice stifled.

A further object of the utility model is to improve the speed that melts of the frost that the piece position department that melts of heat absorption.

In order to achieve the above object, the present invention provides a refrigerating and freezing apparatus, which comprises:

the defrosting device comprises a box body, a water tank and a water tank, wherein an evaporator chamber for arranging an evaporator and a defrosting heater is defined in the box body, and a water outlet for discharging defrosting water is formed in the bottom of the evaporator chamber; and

the defrosting device comprises a defrosting heater, a defrosting heat absorption piece and a water outlet, wherein the defrosting heater is arranged on the water outlet, and the defrosting heat absorption piece is arranged at the water outlet and is spaced from the defrosting heater so as to absorb at least part of radiation heat generated by the defrosting heater after the defrosting heater is started, so that the at least part of radiation heat is utilized to prevent the water outlet from being blocked by ice.

Optionally, the refrigeration and freezing apparatus further comprises:

one end of the water discharging pipe is connected with the water discharging port, and the other end of the water discharging pipe extends to the outside of the box body;

the heat absorption defrosting piece extends to the inside of the drain pipe from the water outlet and is abutted to the pipe wall of the drain pipe.

Optionally, a first section of the heat absorption defrosting member extending into the drain pipe is tubular, and a pipe wall of the first section is a non-smooth wall with a plurality of ridges.

Optionally, each ridge extends vertically.

Optionally, the outer contour of the cross-section of the first segment is in the form of a ring surrounded by a wavy curve.

Optionally, a water pan is arranged at the bottom of the evaporator chamber for collecting defrosting water generated by defrosting of the evaporator, and the water outlet is opened at the bottom wall of the water pan;

the heat absorption defrosting piece further comprises a second section located above the water outlet, and the second section is attached to the inner surface of the bottom wall of the water receiving tray.

Optionally, the defrosting heater is located below the evaporator, and the water pan is located below the defrosting heater;

the highest end of the second section in the vertical direction is lower than the lowest end of the defrosting heater.

Optionally, the second section is funnel-shaped, and a tube wall of the second section is a non-smooth wall having a plurality of ridges.

Optionally, an inner wall of the heat absorbing frost is coated with a heat absorbing coating for absorbing radiant heat.

Optionally, the heat absorption defrosting member is a heat absorption and conduction member made of a metal material.

The utility model discloses a cold-stored refrigerating plant designs an endothermic defrosting piece in its drain outlet department specially, during the evaporimeter defrosting, the defrosting heater starts the production of heat, the heat absorption defrosting piece can absorb the at least partial radiant heat that the defrosting heater produced fast, and transmit it to the outlet, the speed of radiant heat transfer to outlet has been improved, the total amount of radiant heat of transmission to the outlet has been increased, make the frost of drain outlet department preferentially, melt in time, avoid outlet department to produce the ice stifled or cause the excessive problem of defrosting water. And, this application utilizes the heat that the defrosting heater produced during normal defrosting to prevent that the outlet from producing ice stifled, need not additionally to set up special heater strip, also need not to prolong the defrosting time, therefore the energy consumption is lower.

Furthermore, the heat absorption defrosting piece also extends to the inside of the drain pipe, so that frost generated inside the drain pipe can be melted, and the ice blockage in the drain pipe is avoided. And the pipe wall of the first section of the heat absorption defrosting piece extending into the drain pipe is a non-smooth wall with a plurality of convex ridges, and the design of the convex ridges increases the surface area of the heat absorption defrosting piece, so that the heat exchange area between the heat absorption defrosting piece and the frost is increased, and the frost melting speed at the water outlet and the drain pipe is increased.

Further, this application still has the heat absorption coating that is used for absorbing radiant heat at the inner wall coating of the frost spare that absorbs heat, and the heat absorption coating can accelerate the speed that the frost spare that absorbs heat absorbed radiant heat, increases its radiant heat that absorbs in unit interval to improve the defrosting efficiency of drain outlet department.

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:

fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic enlarged view of portion B of FIG. 1;

fig. 3 is a schematic cross-sectional view taken along section plane a-a in fig. 1.

Detailed Description

The present invention first provides a refrigerating and freezing device, fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention, and fig. 2 is a schematic enlarged view of a portion B in fig. 1. Referring to fig. 1 and 2, a refrigerating and freezing apparatus 1 of the present invention includes a box 10, and at least one storage compartment 12 for storing articles is defined in the box 10. The housing 10 may include an outer container 13 and at least one inner container 14, with the at least one inner container 14 defining at least one storage compartment 12. A foaming layer 15 for heat preservation and heat insulation is arranged between the outer box 13 and the inner container 14. The refrigerating and freezing device 1 may further include at least one door body for opening and closing at least one storage compartment 12.

The cabinet 10 also defines therein an evaporator chamber 11 for arranging the evaporator 20 and the defrosting heater 30. The evaporator 20 is intended to be in heat exchange with the air flow passing through it, so as to generate a cooling air flow intended to supply at least one storage compartment. The defrosting heater 30 is used for heating the evaporator 20 to defrost, and when the evaporator 20 defrosts, the defrosting water is generated. The bottom of the evaporator chamber 11 is opened with a drain port 111 for draining the defrosting water.

In particular, the refrigerating and freezing apparatus 1 further includes an endothermic defrosting member 40, the endothermic defrosting member 40 being provided at the drain opening 111 and being spaced apart from the defrosting heater 30 to absorb at least a portion of radiant heat generated from the defrosting heater 30 after the defrosting heater 30 is activated, thereby preventing the drain opening 111 from being blocked with ice using the at least a portion of radiant heat. That is, the heat absorption defrosting member 40 does not contact with the defrosting heater 30, and absorbs the radiant heat generated by the defrosting heater 30, so that the problem that the heat absorption defrosting member 40 directly contacts with the defrosting heater 30 to cause local high temperature and easy damage can be avoided.

During defrosting of the evaporator 20, the defrosting heater 30 is activated to generate heat, and the heat directly acting at the drain opening 111 by the heat radiation action is very small, so that frost formed at the drain opening 111 is not easily melted. The heat absorption defrosting part 40 can rapidly absorb at least part of the radiant heat generated by the defrosting heater 30 and transmit the radiant heat to the water outlet 111, so that the speed of transmitting the radiant heat to the water outlet 111 is increased, the total amount of the radiant heat transmitted to the water outlet 111 is increased, the frost at the water outlet 111 is melted preferentially and timely, and the problem of ice blockage at the water outlet 111 or frost water overflow is avoided. In addition, the water outlet 111 is prevented from being blocked by ice by using the heat generated by the defrosting heater 30 during normal defrosting, and no special heating wire is needed to be additionally arranged, and defrosting time is not needed to be prolonged, so that the energy consumption is low.

In some embodiments, the refrigerating and freezing device 1 further includes a drain pipe 50, one end of the drain pipe 50 is connected to the drain port 111, and the other end extends to the outside of the box body 10, so as to drain the defrosting water at the drain port 111 out of the box body 10. During use of the refrigerating and freezing apparatus 1, the drain pipe 50 is adjacent to the drain opening 111, and therefore, at least a portion of the section thereof connected to the drain opening 111 is also liable to generate ice or frost, which also hinders the drainage of the defrosting water.

For this, the heat absorption defrosting member 40 of the present application extends from the drain opening 111 to the inside of the drain pipe 50 and abuts against the wall of the drain pipe 50. On one hand, the volume and the surface area of the frost absorbing part 40 are increased, and the capacity of the frost absorbing part for absorbing radiant heat is improved, on the other hand, part of heat absorbed by the frost absorbing part 40 can be used for melting frost generated in the drain pipe 50 near the water outlet 111, and the drain pipe 50 is prevented from being blocked by ice to block the discharge of frost water.

Fig. 3 is a schematic cross-sectional view taken along section plane a-a in fig. 1 according to an embodiment of the present invention. In some embodiments, the first section 41 of the heat absorbing defrosting member 40 extending into the inside of the drain pipe 50 has a tubular shape so as to facilitate the flow of defrosting water out through the inner space thereof. The wall of the first section 41 is a non-smooth wall having a plurality of ridges 43. The design of the ridges 43 increases the surface area of the heat-absorbing defrosting member 40, thereby increasing the heat exchange area between the heat-absorbing defrosting member 40 and the frost, and increasing the melting speed of the frost at the drain port 111 and the drain pipe 50.

Further, each ridge 43 extends vertically. That is, the extension direction of the ridge 43 is the same as the extension direction of the first section 41 and the drain pipe 50, that is, the same as the flow direction of the defrosted water, so that the ridge 43 is prevented from generating flow resistance to the defrosted water. The ridge 43 may be convexly curved toward the radially inner side of the first section 41, and the ridge 43 may be an arc-shaped protrusion, a pointed protrusion, or other suitable regular or irregular shaped protrusion.

Specifically, the drain pipe 50 needs to pass through the foaming layer 15 of the cabinet 10 while extending from the drain port 111 to the outside of the cabinet 10. Since the section of the drain pipe 50 extending out of the casing 10 is located in the compressor compartment or in the ambient space, the temperature is high and frost formation is not likely to occur. For this reason, the length of the first section 41 extending into the drain pipe 50 may be set not to exceed the section of the drain pipe 50 in the foaming layer 15, so as to intensively transfer the heat absorbed by the heat-absorbing defrosting member 40 to the area where frost may form, and avoid waste of the heat absorbed by the heat-absorbing defrosting member 40.

The bottom of the box 10 of the refrigerating and freezing device 1 can be provided with a compressor chamber, and a compressor 70 and an evaporating dish 80 are arranged in the compressor chamber. The bottom end of the drain pipe 50 extends into the evaporation pan 80 to discharge the defrost water into the evaporation pan 80. The evaporating dish 80 may be disposed above the compressor 70 to facilitate evaporation of the defrosting water in the evaporating dish 80 by using heat generated when the compressor 70 is operated.

In some embodiments, the outer contour of the cross-section of the first section 41 is in the form of a ring enclosed by a wavy or toothed curve. That is, the ridges 43 on the first section 41 are distributed relatively densely and uniformly, on one hand, the area of the wall of the heat absorption defrosting member 40 can be increased as much as possible to improve the heat absorption and heat exchange efficiency, and on the other hand, a valley can be formed between two adjacent ridges 43 to facilitate the defrosting water to flow downward along the valley. At the same time, it is ensured that the heat absorbed by the heat absorbing defrosting part 40 is transferred to the drain opening 111 or the drain pipe 50 relatively uniformly.

Specifically, the shape of the grooves may be arcuate, tapered, or other suitable regular or irregular shape.

In some embodiments, a water pan 60 is provided at the bottom of the evaporator chamber 11 for collecting defrosting water generated by defrosting the evaporator 20. The drain port 111 opens in the bottom wall 61 of the drip tray 60. The heat absorbing frost 40 further includes a second section 42 above the drain opening 111, and the second section 42 is attached to the inner surface of the bottom wall of the water tray 60. Because the drip tray 60 is located in the evaporator chamber 11, the bottom wall 61 of the drip tray 60 is also prone to frost formation during use of the refrigeration freezer 1. In particular, when frost is formed on the bottom wall of the drip tray 60 at a position adjacent to the drain opening 111, it is also difficult to drain the frost water from the drain opening 111.

Therefore, the heat absorption frost part 40 extends to the upper part of the water outlet 111 and is attached to the inner surface of the bottom wall of the water collector 60, on one hand, the volume and the surface area of the heat absorption frost part 40 are increased, and the capacity of absorbing radiant heat is improved, on the other hand, part of radiant heat absorbed by the heat absorption frost part 40 can be transferred to the bottom wall of the water collector 60, and therefore frost is prevented from being generated on the bottom wall 61 of the water collector 60 adjacent to the water outlet 111. Meanwhile, the heat absorption defrosting member 40 does not generate flow resistance to the defrosting water flowing along the inner surface of the bottom wall of the water collector 60.

Further, in order to facilitate the collection of defrosted water, the bottom wall 61 of the water tray 60 is generally funnel-shaped, and therefore, the second section 42 of the heat absorbing defrosted member 40 is also funnel-shaped.

Further, the tube wall of the second section 42 is also a non-smooth wall having a plurality of ridges. Similar to the previous, the raised ridge design increases the surface area of the second section 42, thereby increasing the heat transfer area between the heat absorbing defrost element 40 and the frost, and increasing the frost melting rate at the drain opening 111 and the bottom wall of the drip tray 60. The raised ridge can extend along the bottom wall of the water pan 60 in an inclined manner, so that the flow direction of the raised ridge is the same as that of the defrosting water at the bottom wall of the water pan 60, and the flow resistance of the defrosting water is avoided. In addition, due to the design of the convex ridges, a concave gully can be formed between every two adjacent convex ridges, so that the defrosting water can flow downwards along the concave gully conveniently. Meanwhile, the heat absorbed by the defrosting heat absorbing part 40 can be uniformly transferred to the water outlet 111 or the bottom of the water pan 60.

In particular, the ridges may also be curved, pointed or other suitable regularly or irregularly shaped protrusions. The shape of the depressions may be arcuate, tapered, or other suitable regular or irregular shape.

In some embodiments, the defrosting heater 30 is located below the evaporator 20, and the drip tray 60 is located below the defrosting heater 30. The highest end of the second section 42 in the vertical direction is lower than the lowest end of the defrosting heater 30 to ensure that the heat absorbing defrosting member 40 is arranged spaced apart from the defrosting heater 30.

In some embodiments, the inner wall of the heat absorbing frost 40 is coated with a heat absorbing coating (not shown) for absorbing radiant heat. The heat absorbing coating can increase the speed of the heat absorbing defrosting member 40 absorbing the radiant heat, and increase the radiant heat absorbed by the heat absorbing defrosting member per unit time, thereby improving the defrosting efficiency at the drain port 111.

Specifically, the heat absorbing coating may be a coating with a dark color such as black, dark gray, etc., to further increase the heat absorbing speed thereof.

Specifically, the heat absorbing coating layer may be uniformly coated on the inner wall surface of the heat absorbing frost member 40 to improve the uniformity of heat absorption of the heat absorbing frost member 40.

In some embodiments, the heat absorbing frost-melting member 40 may be a heat absorbing and conducting member made of metal. The heat absorption defrosting piece 40 made of the material has high heat absorption efficiency and heat conduction efficiency, is durable in use and is not easy to damage or deform. Specifically, the heat absorption defrosting member 40 may be a heat absorption and conduction member made of a copper material, and has high structural strength and high heat transfer speed.

In some alternative embodiments, the heat-absorbing frost member 40 may also be iron, aluminum, or other metal member having a high heat-absorbing efficiency.

It will be appreciated by those skilled in the art that the refrigerating and freezing apparatus 1 of the present invention may be a double door refrigerator, and the number of evaporator chambers 11 may be one, which is located at the rear of the lower storage compartment. The lower storage compartment may be a freezer compartment and the upper storage compartment may be a refrigerator compartment. The storage temperature in the freezing chamber can be-24 to-14 ℃, and the storage temperature in the refrigerating chamber can be 0 to 8 ℃.

In other embodiments, the refrigerating and freezing device 1 may not be limited to the refrigerator structure shown in fig. 1, but may be a cross-split door refrigerator, and the evaporator chambers 11 may be one in number and located behind one of the lower storage compartments; the evaporator chambers 11 may also be two in number and located respectively behind the two lower storage compartments.

In other embodiments, the refrigerating and freezing device 1 may not be limited to the refrigerator structure shown in fig. 1, but may be a multi-door refrigerator, and the number of the evaporator chambers 11 may be one and located behind the lower storage compartment.

In other embodiments, the refrigerating and freezing device 1 may not be limited to the refrigerator structure shown in fig. 1, but may be a three-door refrigerator, and the number of the evaporator chambers 11 may be one and located behind the lower storage compartment.

In other embodiments, the refrigerating and freezing device 1 may not be limited to the refrigerator structure shown in fig. 1, but may be a side-by-side refrigerator, and the evaporator chamber 11 may be one in number and located behind one of the storage compartments; the number of the evaporator chambers 11 may be two and the two evaporator chambers are respectively located behind the two storage compartments.

In other embodiments, the refrigerating and freezing device 1 may not be limited to the refrigerator structure shown in fig. 1, but may also be a wine cabinet, a vertical refrigerator, a horizontal refrigerator, or other various special-shaped refrigerating and freezing devices.

It should be understood by those skilled in the art that, in the embodiments of the present invention, terms such as "upper", "lower", "inner", "outer", "lateral", "front", "rear", etc., used for indicating an orientation or a positional relationship, are used with reference to an actual use state of the refrigerating and freezing device 1, and 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 device or the component indicated must have a specific orientation, and thus, 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

1. A refrigeration freezer apparatus, comprising:

2. A refrigerator-freezer as claimed in claim 1, further comprising:

3. A refrigerator-freezer according to claim 2,

the first section of the heat absorption defrosting piece extending into the drainage pipe is tubular, and the pipe wall of the first section is a non-smooth wall with a plurality of ridges.

4. A refrigerator-freezer according to claim 3,

each ridge extends vertically.

5. A refrigerator-freezer according to claim 3,

the outer contour line of the cross section of the first section is a ring enclosed by a wavy curve.

6. A refrigerator-freezer according to claim 2,

the bottom of the evaporator chamber is provided with a water pan for collecting defrosting water generated by defrosting of the evaporator, and the water outlet is formed in the bottom wall of the water pan;

7. A refrigerator-freezer according to claim 6,

the defrosting heater is positioned below the evaporator, and the water receiving disc is positioned below the defrosting heater;

8. A refrigerator-freezer according to claim 6,

the second section is funnel-shaped, and the pipe wall of the second section is a non-smooth wall with a plurality of ridges.

9. A refrigerator-freezer according to claim 1,

the inner wall of the heat-absorbing defrosting piece is coated with a heat-absorbing coating for absorbing radiant heat.

10. A refrigerator-freezer according to claim 1,

the heat absorption defrosting piece is a heat absorption and conduction piece made of metal.