CN114719528A - Refrigerating and freezing device - Google Patents

Abstract

The invention provides a refrigerating and freezing device. The refrigerating and freezing device comprises a box body, at least one door body, an ice making unit arranged in the door body, and a refrigerating system used for providing cold energy for at least one storage compartment and the ice making unit. The refrigerator body is limited with at least one storage chamber, one storage chamber is divided into a storage area and an evaporation chamber, and the refrigerating system comprises an evaporator arranged in the evaporation chamber. The refrigerating and freezing apparatus further includes a water drainage system configured to guide the defrosting water generated by the ice making unit into the evaporation chamber. According to the invention, the defrosting water generated by the door body ice making unit is guided into the evaporation chamber of the storage chamber, so that the defrosting water is condensed on the evaporator in the evaporation chamber and is discharged together when the evaporator defrosts, the structure of the door body is simplified, the production difficulty and the production cost are reduced while the defrosting water is effectively discharged and treated, and the door body has larger ice making and storage space.

Description

Refrigerating and freezing device

Technical Field

The invention relates to the field of refrigeration and freezing, in particular to a refrigeration and freezing device with an ice-making unit arranged on a door body.

Background

At present, the refrigerators with the ice making chambers on the door body mostly guide the cold energy of the freezing chambers into the ice making chambers of the door body through air ducts, so that the air ducts are complex in structure, condensation is easily generated at the butt joint positions of the refrigerator body and the air ducts of the door body, the ice making time is long, and the ice making chambers are easily tainted with the freezing chambers and influence the cleanliness of ice blocks. However, if the direct cooling ice making is performed on the door body, not only the refrigerant pipeline connection is complicated and difficult, and the transmission distance is too long, but also effective defrosting and draining needs to be realized in a narrow space.

In view of the above, it is desirable to provide a refrigerating and freezing apparatus having a door ice-making unit, which can effectively discharge water and perform defrosting water treatment.

Disclosure of Invention

It is an object of the present invention to overcome at least one of the technical disadvantages of the prior art and to provide a refrigerating and freezing apparatus having an ice-making unit with a door.

A further object of the invention is to enable the defrost water to be conducted away efficiently.

It is a further object of the present invention to ensure the preservation quality of food in the storage area.

In particular, the present invention provides a refrigeration and freezing apparatus comprising:

a case defining at least one storage compartment;

the door body is used for opening and closing the at least one storage compartment;

an ice making unit provided in one of the door bodies; and

the refrigerating system is used for providing cold energy for the at least one storage compartment and the ice making unit; wherein the content of the first and second substances,

one of the storage compartments is divided into a storage area and an evaporation chamber, and the refrigeration system includes an evaporator disposed within the evaporation chamber; and the refrigerating and freezing device further comprises:

a drainage system configured to guide the defrosted water generated by the ice making unit into the evaporation chamber.

Optionally, the drainage system comprises:

the water collector is arranged on the door body and used for collecting the defrosting water generated by the ice making unit;

a water discharge duct configured to communicate the water collector and the evaporation chamber; and

a drain fan configured to force air from the water collector to the evaporation chamber to condense the vaporized frost water on the evaporator; wherein

One end of the water collector, which is far away from the water drainage air duct, is communicated with the storage area.

Optionally, the drain duct includes:

the door body section is arranged on the door body, and one end of the door body section is communicated with the water collector; and

the box body section is arranged on the box body, and one end of the box body section is communicated with the evaporation chamber; wherein

The door body section is connected and communicated with the box body section when the door body is in a closed state.

Optionally, the box section is arranged to extend obliquely downwards.

Optionally, the refrigeration system further comprises:

the refrigerating fan is arranged in the evaporation chamber and is positioned at the downstream of the evaporator; and is

The drainage fan is arranged at the position of the evaporation chamber close to the drainage air channel and blows air in the drainage air channel to the upstream of the evaporator.

Optionally, the refrigeration and freezing apparatus further comprises:

and the baffle is arranged at the air inlet of the refrigerating fan and is arranged to block the air inlet of the refrigerating fan when the refrigerating fan does not operate.

Optionally, the drainage system further comprises:

the drain pipe is communicated with the drain air channel and the evaporation chamber so as to lead out liquid defrosting water in the drain air channel; and

the evaporating dish is communicated with the indoor environment and is used for receiving the defrosting water led out by the drain pipe; wherein

The drain pipe and the drainage air channel are communicated with the bottom of the drainage air channel, and the area of the inlet of the drain pipe is smaller than the area of the outlet of the drainage air channel.

Optionally, the drainage system further comprises:

the air door is arranged at the air outlet of the drainage fan; wherein

The damper is configured to close an air outlet of the drain fan when the drain fan does not operate.

Optionally, the drain fan is configured to operate when the ice making unit defrosts; and/or

The drainage fan is configured to operate when the height of the defrosted water in the water collector is greater than or equal to a preset height threshold.

Optionally, a bottom of the sump is provided with at least one of a heating wire and an atomizer.

According to the invention, the defrosting water generated by the door body ice making unit is guided into the evaporation chamber of the storage chamber, so that the defrosting water is condensed on the evaporator in the evaporation chamber and is discharged together when the evaporator defrosts, the structure of the door body is simplified, the production difficulty and the production cost are reduced while the defrosting water is effectively discharged and treated, and the door body has larger ice making and storage space.

Furthermore, the drainage pipe leads the liquid defrosting water in the drainage air duct and the evaporation chamber out to the evaporation dish communicated with the indoor environment, so that the gaseous defrosting water can be prevented from being condensed and accumulated and even frozen in the drainage air duct due to the lower temperature of the storage chamber, and the defrosting water can be effectively discharged no matter whether the refrigeration system provides cold energy for the storage chamber or not.

Furthermore, the baffle is arranged to block the air inlet of the refrigerating fan when the refrigerating fan does not work, and the air door blocks the air outlet of the drainage fan when the drainage fan does not work, so that the gaseous defrosting water can be prevented from entering the storage area and being condensed on the inner wall of the storage area, the loss of cooling capacity when the cooling capacity is provided for the storage area is reduced, the cooling efficiency for the storage area is further ensured, and the preservation quality of food in the storage area is ensured.

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 invention will be described in detail hereinafter, by way of illustration and not 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 isometric view of a refrigerated freezer in accordance with one embodiment of the invention;

FIG. 2 is a schematic isometric view of the door body of FIG. 1 with portions of the outer shell and ice-making bladder of the door body removed;

FIG. 3 is a schematic cross-sectional view of the ice-making unit of FIG. 1;

FIG. 4 is a schematic exploded view of the water receiving assembly of FIG. 3;

fig. 5 is a schematic isometric view of the water collector of fig. 1, viewed from below upwards;

FIG. 6 is a schematic isometric view of the case of FIG. 1 from the rear to the front with a rear back panel and one side panel of the case removed;

FIG. 7 is a schematic cross-sectional view of the case of FIG. 1;

fig. 8 is a schematic isometric view of the evaporation chamber of fig. 7, viewed from the rear to the front.

Detailed Description

Fig. 1 is a schematic isometric view of a refrigeration freezer 100 according to one embodiment of the invention; fig. 2 is a schematic isometric view of the door body 120 of fig. 1, with portions of the housing 121 and ice making bladder 122 of the door body 120 removed. Referring to fig. 1 and 2, the refrigerating and freezing apparatus 100 may include a cabinet 110 defining at least one storage compartment, at least one door body for opening and closing the at least one storage compartment, an ice making unit 130 disposed in the door body 120, and a refrigerating system for providing cold to the at least one storage compartment and the ice making unit 130. In the present invention, at least one is one, two, or more than two.

The door 120 may include a case 121, an ice making inner container 122 disposed inside the case 121, and an insulating layer disposed between the case 121 and the ice making inner container 122. The ice making inner container 122 may define an ice making compartment, and the ice making unit 130 may be disposed in the ice making compartment to increase a storage space of the storage compartment.

The refrigeration system may include a compressor, a condenser, a throttling element, and an evaporator 114 disposed within the storage compartment.

Fig. 3 is a schematic cross-sectional view of the ice making unit 130 of fig. 1. Referring to fig. 3, the ice making unit 130 may include an ice making housing 131, a refrigerating duct 132, and a heating duct 135.

The ice-making housing 131 may define at least one ice-making groove for receiving water or ice cubes. The number of the ice making grooves may be plural and distributed along the longitudinal direction of the ice making housing 131.

The cooling pipe 132 may be used to provide cooling energy to the ice making groove to form ice cubes. In the present invention, the refrigeration pipe 132 may be a refrigerant evaporation pipe, and is connected to the portion of the refrigeration system located in the box 110 through a flexible hose, and is connected in parallel with the evaporator 114.

The heating pipe 135 may be at least partially embedded in the bottom of the ice making housing 131 to heat the ice making housing 131 for ice removal.

The ice-making unit 130 may further include a separator 136 and a box cover 137. The separator 136 may be configured to drive the movement of ice cubes within the ice making groove. Illustratively, the decoupler 136 may include a shift lever and a drive that drives the shift lever for movement.

The cover 137 may be disposed above the ice making housing 131 and guide the ice cubes driven by the separator 136 to a lower side of the ice making housing 131. An ice bank may be disposed below the ice making unit 130 to receive the dropped ice cubes.

In some embodiments, the ice making unit 130 may further include heat exchanging fins 133 disposed below the ice making housing 131 to diffuse the coldness of the refrigerating pipe 132 to its surroundings.

The heat exchange fins 133 may be disposed to sandwich the heating pipe 135 and the cooling pipe 132 between the heating pipe and the ice making case 131, so that the ice making case 131 and the heat exchange fins 133 are defrosted or cooled at the same time, thereby improving the structural compactness of the ice making unit 130 and reducing the occupied space.

A heat insulator 134 may be disposed between the cooling duct 132 and the ice making housing 131 to reduce the ice making speed and improve the transparency of the made ice.

The ice-making unit 130 may also include a fan assembly 138 to facilitate air circulation within the ice-making compartment.

The fan assembly 138 may include a circulating fan and a fan support. The circulation fan may be provided to promote the air in the ice making compartment to flow through the heat exchange fins 133. The fan support may be configured to be fixedly coupled to the box cover 137 and to support the circulating fan.

In some embodiments, the ice-making unit 130 may also include a water receiving assembly 139. The water receiving assembly 139 may be disposed below the heat exchanging fins 133 for receiving the defrosting water generated by the heat exchanging fins 133.

Fig. 4 is a schematic exploded view of the water receiving assembly 139 of fig. 3. Referring to fig. 4, the water receiving assembly 139 may include a water receiving pan 1391, heating wires 1392, insulation materials 1394, and a lower cover 1393.

A water receiving pan 1391 may be disposed below the heating pipe 135 to receive defrosted water generated by the heat exchanging fins 133 when the heating pipe 135 operates.

A heating wire 1392 may be provided at a bottom wall of the drip pan 1391 to prevent the defrost water from being frozen in the drip pan 1391, so that the defrost water is smoothly discharged.

The heating wire 1392 may be disposed below the water tray 1391 to avoid potential safety hazards and improve the safety of the ice making unit 130.

Insulation 1394 can be provided below heater wire 1392 to reduce the temperature effects of heating on the environment below heater wire 1392.

A lower cover 1393 may be disposed below the insulation material 1394 to support the water pan 1391, heating wire 1392, and insulation material 1394. The lower cover 1393 may be fixedly connected to at least one of the driving unit of the separator 136 and the cover 137 to fix the water receiving assembly 139, thereby facilitating the production and transportation of the ice making unit 130.

The lower cover plate 1393 can be provided with a water outlet and a line passing hole, so that defrosting water in the water pan 1391 is discharged through the water outlet, and the heating wire 1392 is electrically connected through the line passing hole.

The projection of the heat exchange fins 133 on the vertical plane may be located in the lower cover 1393 to improve the structural compactness of the ice making unit 130.

The lower cover 1393 may be formed with ventilation holes extending horizontally through the circumferential side wall of the lower cover 1393 to allow the heat exchange fins 133 to exchange heat with the surrounding environment.

Fig. 6 is a schematic perspective view of the case body 110 of fig. 1, as viewed from the rear to the front, with a rear back plate and one side plate of the case body 110 removed; fig. 7 is a schematic sectional view of the case 110 of fig. 1. Referring to fig. 1 and 2, and fig. 6 and 7, the storage compartment may be divided into a storage area 111 and an evaporation chamber 112 by an air duct cover 113, and an evaporator 114 may be disposed in the evaporation chamber 112.

In particular, the refrigeration freezer 100 may also include a drainage system. The drainage system may be configured to guide the defrosting water generated by the ice making unit 130 into the evaporation chamber 112, so that the defrosting water is condensed on the evaporator 114 in the evaporation chamber 112 and is discharged together with the defrosting water when the evaporator 114 defrosts, thereby simplifying the structure of the door 120, reducing the production difficulty and the production cost, and enabling the door 120 to have a large ice making and storage space while achieving effective defrosting water discharge and treatment.

The drain system may include a sump 141, a drain duct, and a drain fan 145. The water collector 141 may be disposed at the door 120, and is communicated with the water tray 1391 through a pipe 142 to collect defrost water generated by the ice making unit 130.

The drain duct may be provided to communicate the sump 141 and the evaporation chamber 112. A drain fan 145 may be provided to force air from the water collector 141 towards the evaporation chamber 112 to cause the condensation of the vaporous defrost water on the evaporator 114.

An air return opening 1411 may be formed at an end of the water collector 141 remote from the drain duct and communicated with the storage area 111 to realize a circulation flow of air.

In some embodiments, the drain chute may include a door section 143 and a box section 144. A tank section 144 can be disposed in the tank 110 and communicate with the evaporation chamber 112 at one end.

The door body section 143 may be disposed at the door body 120 and have one end communicating with the sump 141. The door section 143 may be disposed to be in contact with and communicate with the case section 144 when the door 120 is in a closed state, so that the defrosting water may be transmitted to the evaporation chamber 112. The door section 143 and the chest section 144 may be formed with a door interface 1431 and a chest interface 1441, respectively, for docking communication.

For example, the door 120 may be partially disposed in the storage compartment when in the closed state. The door interface 1431 may be disposed at a portion of the door 120 located in the storage compartment, and is disposed at a side wall close to a rotation axis of the door 120. The box body section 144 may be at least partially pre-installed in the insulation layer of the box body 110, and the box body interface 1441 may be disposed on a sidewall of the storage compartment near the rotation axis of the door body 120.

The drain system may also include a drain pipe 146 and an evaporation pan 147. The drain pipe 146 may be disposed to communicate with the drain duct and the evaporation chamber 112 to lead out the liquid defrosting water therein, so as to prevent the gaseous defrosting water from being condensed and accumulated due to the low temperature of the storage compartment, and even frozen in the drain duct, and further to enable the defrosting water to be effectively drained no matter whether the refrigeration system provides cold for the storage compartment or not.

The evaporation pan 147 may be disposed in communication with the indoor environment for receiving the defrosting water from the drain pipe 146 to evaporate the defrosting water to the indoor environment. Illustratively, the evaporation pan 147 may be disposed in a press chamber at the rear side of the bottom of the cabinet 110, and the press chamber may communicate with the indoor environment to evaporate the defrost water and facilitate heat dissipation of the compressor.

The drain pipe 146 and the drain air duct may be communicated with the bottom of the drain air duct, and an inlet area of the drain pipe 146 may be smaller than an outlet area of the drain air duct.

The tank section 144 may be arranged to extend obliquely downwards to facilitate the outflow of the liquid defrost water.

The drainage system can guide the defrosting water into the evaporation chamber in the refrigerating chamber, and compared with the evaporation chamber in the freezing chamber, the defrosting water can be further prevented from freezing in the drainage air duct.

The drain fan 145 may be configured to operate when the ice-making unit 130 defrosts or when the height of the defrosted water in the sump 141 is equal to or greater than a preset height threshold value, so that the defrosted water is timely drained. The sump 141 may be provided with a water level sensor to sense the height of the defrosted water.

Fig. 5 is a schematic perspective view of the water collector 141 of fig. 1, viewed from below to above. Referring to fig. 5, the bottom of the sump 141 may be provided with at least one of a heating wire 148 and an atomizer (not shown in the drawings) to increase the evaporation rate of the defrost water.

The middle of the bottom wall of the sump 141 may be provided to be downwardly concave. The heating wire 148 may be provided to be partially wound around the outer wall of the recess. The atomizer can be disposed in the recess.

Fig. 8 is a schematic isometric view of the evaporation chamber 112 of fig. 7, viewed from the rear to the front. Referring to fig. 7 and 8, the refrigeration system may further include a refrigeration fan 115 to facilitate air flow within the locker room.

The cooling fan 115 may be disposed in the evaporation chamber 112 downstream of the evaporator 114, i.e., air flows through the evaporator 114 and is then drawn into the cooling fan 115.

A mounting plate 116 may be disposed within the evaporation chamber 112. The evaporator 114 may be disposed on a rear side of the mounting plate 116, and the cooling fan 115 may be mounted to the mounting plate 116 and positioned on a front side of the mounting plate 116 above the evaporator 114. Air in the storage area 111 may flow into the rear side of the mounting plate 116 via the lower side of the duct cover 113 and the mounting plate 116 to exchange heat with the evaporator 114. And is sucked into the front side of the mounting plate 116 by the cooling fan 115 and blown out to the storage area 111 through one or more blowing ports of the duct cover 113.

In some embodiments, the drain fan 145 may be disposed at the evaporation chamber 112 near the drain duct and blow air in the drain duct upstream of the evaporator 114 to facilitate installation of the drain fan 145 and to cause the vaporized frost water to condense sufficiently on the evaporator 114 to prevent the vaporized frost water from entering the storage region 111.

A baffle 117 may be disposed at an air inlet of the cooling fan 115. The baffle 117 may be configured to block the intake of the cooling fan 115 when the cooling fan 115 is not operating (i.e., the compressor is not operating or the flow path between the compressor and the evaporator 114 is blocked) to prevent the gasified frost water from entering the storage region 111 and condensing on the inner wall of the storage region 111, ensuring the preservation quality of the food in the storage region 111.

An air door 1451 may be provided at an air outlet of the drain fan 145. The damper 1451 may be configured to close the outlet port of the drain fan 145 when the drain fan 145 is not operated, to reduce a loss of cooling capacity when the cooling fan 115 supplies cooling capacity to the storage region 111, thereby ensuring efficiency of cooling the storage region 111.

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

Claims (10)

1. A refrigeration chiller comprising:

a case defining at least one storage compartment;

the door body is used for opening and closing the at least one storage compartment;

an ice making unit provided in one of the door bodies; and

the refrigerating system is used for providing cold energy for the at least one storage compartment and the ice making unit; wherein the content of the first and second substances,

one of the storage compartments is divided into a storage area and an evaporation chamber, and the refrigeration system includes an evaporator disposed within the evaporation chamber; and the refrigerating and freezing device further comprises:

a drainage system configured to guide the defrosted water generated by the ice making unit into the evaporation chamber.

2. The refrigeration chiller of claim 1, wherein the drainage system comprises:

the water collector is arranged on the door body and used for collecting the defrosting water generated by the ice making unit;

a water discharge duct configured to communicate the water collector and the evaporation chamber; and

a drain fan configured to force air from the water collector to the evaporation chamber to condense the vaporized frost water on the evaporator; wherein

One end of the water collector, which is far away from the water drainage air duct, is communicated with the storage area.

3. The refrigeration chiller of claim 2, wherein the drain duct comprises:

the door body section is arranged on the door body, and one end of the door body section is communicated with the water collector; and

the box body section is arranged on the box body, and one end of the box body section is communicated with the evaporation chamber; wherein

The door body section is connected and communicated with the box body section when the door body is in a closed state.

4. The refrigeration and freezing apparatus according to claim 3,

the box section is arranged to extend obliquely downwards.

5. The refrigeration chiller of claim 2, wherein the refrigeration system further comprises:

the refrigerating fan is arranged in the evaporation chamber and is positioned at the downstream of the evaporator; and is

The drainage fan is arranged at the position of the evaporation chamber close to the drainage air channel and blows air in the drainage air channel to the upstream of the evaporator.

6. The refrigerator-freezer of claim 5, further comprising:

and the baffle is arranged at the air inlet of the refrigerating fan and is arranged to block the air inlet of the refrigerating fan when the refrigerating fan does not operate.

7. The refrigeration chiller of claim 2, wherein the drainage system further comprises:

the drain pipe is communicated with the drain air duct and the evaporation chamber so as to lead out liquid defrosting water in the drain air duct; and

the evaporating dish is communicated with the indoor environment and is used for receiving the defrosting water led out by the drain pipe; wherein

The drain pipe and the drainage air channel are communicated with the bottom of the drainage air channel, and the area of the inlet of the drain pipe is smaller than the area of the outlet of the drainage air channel.

8. The refrigeration chiller of claim 2, wherein the drainage system further comprises:

the air door is arranged at the air outlet of the drainage fan; wherein

The damper is configured to close an air outlet of the drain fan when the drain fan does not operate.

9. A refrigerator-freezer according to claim 2,

the drain fan is configured to operate when the ice making unit defrosts; and/or

The drainage fan is configured to operate when the height of the defrosted water in the water collector is greater than or equal to a preset height threshold.

10. The refrigeration and freezing apparatus according to claim 2,

at least one of a heating wire and an atomizer is disposed at the bottom of the water collector.

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