CN214371178U - Refrigerating unit with cross-flow fan and refrigerating appliance using same - Google Patents

Abstract

The utility model relates to a refrigerating unit who is equipped with cross-flow fan and uses its refrigeration utensil, including evaporimeter, cross-flow fan, electric heating pipe, water collector, air-out panel and installing support, the evaporimeter cross-flow fan electric heating pipe with the water collector all sets up on the installing support, air-out panel and installing support cooperation form accommodation space, be equipped with exhaust vent and return air hole on the air-out panel. In this application, pack the cross-flow fan into the refrigerating unit, for traditional direct current fan and centrifugal fan, greatly reduced the space that the refrigerating unit occupied for can store more food in the same space and can not influence the air-out efficiency of fan.

Description

Refrigerating unit with cross-flow fan and refrigerating appliance using same

Technical Field

The application relates to a refrigerating unit with a cross-flow fan and a refrigerating appliance using the same, which are applicable to the technical field of refrigerating equipment.

Background

The refrigerator is divided into two refrigeration modes of direct cooling and air cooling, but the refrigerator is provided with a plurality of compartments, so that one compartment is in the direct cooling refrigeration mode, and the other compartment is in the air cooling refrigeration mode, which is commonly called mixed cooling. The direct cooling mode is generally a natural convection heat exchange mode of the evaporator, reduces the temperature of air in the compartment, and then exchanges heat with food stored in the compartment through the air, so that the aim of keeping the food fresh and prolonging the storage time is fulfilled. The air cooling mode is generally to reduce the temperature of the air in the compartment by using forced convection of the cooling energy on the surface of the evaporator through a fan, and due to the existence of the fan, the air in the compartment circulates in the compartment in a certain flowing direction, and the heat exchange with the food stored in the compartment is also different from the direct cooling mode. As is known from thermodynamics, the heat exchange efficiency of the forced convection heat exchange method such as air cooling is higher than that of the natural convection heat exchange method such as direct cooling, and therefore, many refrigeration appliances begin to use the air cooling refrigeration mode.

At present, components such as an evaporator, a fan and the like of a refrigeration appliance are integrated with a compartment of the refrigeration appliance, but the refrigeration appliance has various different volumes and shapes, so that different evaporators, fans and air channels formed by the components are required to be matched. As shown in fig. 1, which is a schematic view of a refrigeration unit using an axial flow fan. As can be seen from fig. 1, the thickness of the air duct depends on the thickness of the axial fan 101 and the evaporator 102 even if the heat exchange amount is sufficient, and the area shown by the hatched portion in the figure is useless in the air duct circulation. These two factors result in the fact that the size of the circulating air duct formed by the axial flow fan 101 is large, and a part of the space in the air duct is ineffective. As shown in fig. 2, which is a schematic diagram of a refrigeration unit using a centrifugal fan. The fan also occupies a large space of the air duct system, and the space for storing food in the compartment is reduced. As can be seen from fig. 2, since the centrifugal fan 201 has a smaller size, some of the ineffective space of the circulation duct can be reduced, but since the centrifugal fan 201 needs to suck air axially, a part of the ineffective space is still needed in the circulation duct.

The size of the invalid space in the circulating air duct occupies the space for storing food in the refrigeration device, so that the space in the circulating air duct is reasonably distributed, and the food storage space in the refrigeration device can be increased under the condition of realizing effective refrigeration.

SUMMERY OF THE UTILITY MODEL

The refrigerating unit comprises a tubular fan, a refrigerating unit and a refrigerating appliance, wherein the tubular fan is arranged in the refrigerating unit, the refrigerating unit is provided with a tubular fan, the tubular fan is arranged in the tubular fan, and the tubular fan is arranged in the refrigerating unit.

The utility model relates to a refrigerating unit with cross-flow fan, including evaporimeter, cross-flow fan, electric heating pipe, water collector, air-out panel and installing support, the evaporimeter cross-flow fan electric heating pipe with the water collector all sets up on the installing support, air-out panel and installing support cooperation form and hold the evaporimeter cross-flow fan electric heating pipe with the space of water collector, be equipped with exhaust vent and return air hole on the air-out panel.

Preferably, a heat insulation layer is arranged on the air outlet panel; the water pan is arranged below the electric heating pipe, and the electric heating pipe is arranged below the evaporator; the electric heating pipe is connected with a thermal protector; the rotation axis of the cross flow fan is parallel to the axis of the heat exchange tube of the evaporator; heat exchange fins are arranged along the surface of the heat exchange tube; the heat exchange fins are not arranged in the range corresponding to the air outlet holes in the air outlet panel; the refrigerating unit is also provided with an inlet end and an outlet end for the circulation butt joint of the refrigerant.

The application also relates to a refrigeration appliance comprising a refrigeration unit, wherein the refrigeration unit is provided with the cross-flow fan.

Preferably, the refrigerating unit is vertically arranged, the cross flow fan is horizontally arranged, and circulating cold air is blown from the upper part by the cross flow fan and then is sucked at the bottom of the refrigerating unit; or the refrigerating unit is placed in top, and circulating cold air is blown by the cross flow fan from top to bottom and then is sucked at the other side of the refrigerating unit opposite to the cross flow fan; or the refrigerating unit is vertically arranged, the cross flow fan is vertically arranged, and circulating cold air is blown by the cross flow fan from top to bottom and then sucked at the other side of the refrigerating unit relative to the cross flow fan.

In this application, pack the cross-flow fan into the refrigerating unit, for traditional direct current fan and centrifugal fan, greatly reduced the space that the refrigerating unit occupied for can store more food in the same space and can not influence the air-out efficiency of fan.

Drawings

Fig. 1 is a schematic view of a refrigeration unit using an axial flow fan.

Fig. 2 is a schematic diagram of a refrigeration unit using a centrifugal fan.

FIG. 3 is a perspective view of the refrigeration unit incorporating a crossflow blower of the present application.

Fig. 4 is a first assembled relationship diagram of the refrigeration unit of the present application.

Fig. 5 is a second assembled relationship diagram of the refrigeration unit of the present application.

Fig. 6 is a third assembly relationship diagram of the refrigeration unit of the present application.

Fig. 7 is a schematic view of the refrigeration unit of the present application embedded within a refrigeration appliance cabinet.

Figure 8 shows a comparison of the refrigeration unit of the present application with a refrigeration unit employing an axial flow fan.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

As shown in fig. 3, the refrigerating unit with a cross-flow fan according to the present application includes an evaporator 302, a cross-flow fan 301, an electric heating pipe 303, a water pan 304, an air outlet panel 307 and a mounting bracket 305, wherein the evaporator 302, the cross-flow fan 301, the electric heating pipe 303 and the water pan 304 are all disposed on the mounting bracket 305, and the mounting bracket 305 can be further connected and fixed with a compartment of a refrigeration appliance, thereby forming an embedded unit. The air outlet panel 307 can be regarded as a component for isolating the embedded unit from the refrigeration device compartment, and the material thereof can be plastic, metal, etc.

The air outlet panel 307 is matched with the mounting bracket 305 to form a space for accommodating the cross flow fan 301, the evaporator 302, the electric heating pipe 303 and the water receiving tray 304, and the air outlet panel 307 is provided with air holes for air cooling and circulating air outlet and return. Meanwhile, in order to prevent the air outlet panel from frosting after the air outlet panel is directly contacted with the evaporator, a layer of heat insulation layer can be laid on the air outlet panel, so that the air outlet panel is not directly contacted with the evaporator.

The water pan 304 is arranged below the electric heating pipe 303, the electric heating pipe 303 is arranged below the evaporator 302, the electric heating pipe 303 is used for melting the evaporator 302 or the surface of the peripheral accessory thereof when the evaporator 302 or the surface thereof is frozen or frosted, and the melted water flows into the water pan 304; meanwhile, the defrosting water drops can be prevented from being frozen again on the low-temperature water receiving tray. Preferably, a thermal protector is connected to the electric heating tube 303, and the thermal protector can cut off the power supply of the electric heating tube when the heating is out of control at the extreme.

As shown in fig. 3, the evaporator 302 includes heat exchange tubes arranged in the lateral direction in the drawing and heat exchange fins arranged along the surfaces of the heat exchange tubes, the heat exchange fins being shown in darker portions. The heat exchange fins are not provided in the range corresponding to the air outlet on the air outlet panel 307, which is to prevent the blocking of the heat exchange fins from affecting the air outlet effect.

Preferably, the evaporator 302 adopts a small-channel pipe diameter heat exchanger (pipe diameter is less than or equal to 5mm) with high heat exchange efficiency, so as to further reduce the storage space occupied by the evaporator. The air inlet of the cross-flow fan 301 and the air outlet are at a certain angle, such as 90 degrees, so as to form a small-size occupied space with the evaporator.

Wherein, the refrigerating unit is also provided with an inlet end and an outlet end 306 for the circulation butt joint of the refrigerant, so that the refrigerating unit can be further butt jointed with the related refrigerating pipeline on the refrigerating appliance. The refrigerating unit of this application reserve the interface that the fan received power and/or signal transmission.

Preferably, the axis formed by the fan rotor of the crossflow blower is parallel to the axis of the small-diameter duct of the evaporator; the cross-flow fan is not installed on the plane area with the largest area of the hexahedron formed by the evaporator, but installed on the plane areas with the area names of the second and the third; the length size of the cross-flow fan is basically consistent with the largest or second size of the three sizes of the length, the width and the height of the evaporator; the cross-flow fan has a width dimension substantially corresponding to the smallest of the three dimensions of the evaporator, so as to reduce the space required for installing the cross-flow fan and the evaporator.

Three alternative assembly relationships for the in-line refrigeration unit are shown in fig. 4-6. In fig. 4, the refrigerating unit is vertically arranged in the refrigerating appliance, the cross flow fan is horizontally arranged, and circulating cold air is blown from the upper part by the cross flow fan and then sucked into the bottom of the refrigerating unit to exchange heat with the evaporator. In fig. 5, the refrigerating unit is placed in a refrigerating appliance in an overhead manner, and circulating cold air is blown from top to bottom by the cross flow fan and then sucked into the refrigerating unit from the other side opposite to the cross flow fan to exchange heat with the evaporator. In fig. 6, the refrigerating unit is vertically arranged in the refrigerating appliance, the cross flow fan is vertically arranged, circulating cold air is blown from the side of the cross flow fan from top to bottom, and then is sucked into the other side of the refrigerating unit relative to the cross flow fan to exchange heat with the evaporator.

The refrigerating unit can be embedded into the refrigerator with a good heat preservation effect, when an evaporator pipeline, a fan, an electric heating pipe and the like in the refrigerating unit are connected with a refrigerating system and a control system on the box, the refrigerating and fresh-keeping effects of the box with the refrigerating unit can be achieved, and the refrigerating and fresh-keeping effects of the box with the refrigerating unit can be achieved as shown in fig. 7.

The application also relates to a refrigeration appliance, which adopts the refrigeration unit. Domestic and commercial freezer in the refrigeration utensil at present, a lot of all adopt the direct cooling mode, and the refrigeration evaporation heat transfer mode of specifically adopting pastes the evaporation pipe way in the back of freezer storage space inner wall, in the heat preservation promptly. The direct-cooling refrigerator is easy to frost on the inner wall of the storage space to further influence the refrigeration performance, and the refrigerating unit can well solve the problem that the direct-cooling refrigerator is converted into an air-cooling frostless refrigerator. As shown in fig. 8, the left side is a refrigeration device using the refrigeration unit of the present application, and the right side is a comparison diagram using an axial flow fan, wherein the hatched portion in the diagram represents the storage space of the refrigerator for storing stacked food. As can be seen from fig. 8, the large components in the refrigerating unit are reasonably arranged, so that the volume of the storage space of the refrigerator occupied by the refrigerating unit is reduced; the cross-flow fan is arranged at the top of the refrigerating unit and can enable circulating cold air to just pass through a gap channel formed by a door of the refrigerator and stored food; meanwhile, the cross-flow fan has good delivery capacity when blowing air, can deliver the air to a longer distance, and ensures the uniformity of a temperature field in the storage space of the freezer. As can be seen from fig. 8, in addition to the above-mentioned reason that the storage space occupied by the refrigerating unit is relatively large due to the adoption of the axial flow fan or the centrifugal fan, a large portion of the air blown by the axial flow fan or the centrifugal fan is blocked by the stored food, which affects the storage quality of the stored food.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims (10)

1. A refrigerating unit with a cross-flow fan is characterized by comprising an evaporator, the cross-flow fan, an electric heating pipe, a water receiving disc, an air outlet panel and a mounting support, wherein the evaporator, the cross-flow fan, the electric heating pipe and the water receiving disc are all arranged on the mounting support, the air outlet panel and the mounting support are matched to form a space for accommodating the evaporator, the cross-flow fan, the electric heating pipe and the water receiving disc, and an air outlet hole and an air return hole are formed in the air outlet panel.

2. The crossflow blower-equipped refrigeration unit as set forth in claim 1 wherein the outlet panel is provided with a thermal insulation layer.

3. The crossflow blower-equipped refrigeration unit as set forth in claim 1, wherein the water collector is disposed below the electric heating tube, and the electric heating tube is disposed below the evaporator.

4. A crossflow blower equipped refrigeration unit as claimed in any one of claims 1 to 3, wherein a thermal protector is attached to the electric heating tube.

5. A crossflow blower mounted refrigeration unit as claimed in any of claims 1 to 3 in which the axis of rotation of the crossflow blower is parallel to the axis of the heat exchange tubes of the evaporator.

6. The crossflow blower-equipped refrigeration unit as set forth in claim 5 wherein heat exchange fins are provided along the surface of the heat exchange tubes.

7. The crossflow blower-equipped refrigerator unit as claimed in claim 6, wherein the heat exchange fins are not provided in a range corresponding to the outlet holes of the outlet panel.

8. A chiller unit with crossflow blower as claimed in any one of claims 1 to 3 and 7 in which the chiller unit is further provided with inlet and outlet ports for docking of refrigerant circuits.

9. A refrigerator comprising a refrigeration unit, wherein the refrigeration unit is a crossflow blower equipped refrigeration unit as claimed in any one of claims 1 to 8.

10. The refrigeration appliance according to claim 9, wherein:

the refrigerating unit is vertically arranged, the cross flow fan is horizontally arranged, and circulating cold air is blown from the upper part by the cross flow fan and then is sucked at the bottom of the refrigerating unit; or

The refrigerating unit is placed in an overhead manner, circulating cold air is blown by the cross flow fan from top to bottom and then is sucked at the other side of the refrigerating unit relative to the cross flow fan; or

The refrigerating unit is vertically arranged, the cross flow fan is vertically arranged, circulating cold air is blown by the cross flow fan from top to bottom and then sucked at the other side of the refrigerating unit relative to the cross flow fan.

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