CN111947385B - Flow guiding device and air-cooled refrigeration equipment with same - Google Patents

Abstract

The invention provides a flow guiding device and air-cooled refrigeration equipment with the same, wherein the flow guiding device comprises: a conduit and a flexible sheet disposed at an end face of a first opening of the conduit, a first surface of the flexible sheet comprising a first region and a second region, the first region fixedly connected to the end face, wherein the first surface of the flexible sheet is oriented toward the end face; the second area is detachably connected with the end face, the second area can cover the first opening, and the second area is matched with the end face. Here, when the pressure to which the first surface is subjected is large, the second area is remote from the end surface, otherwise the second area is hermetically connected to the end surface, i.e. the flow guiding device allows the fluid in the conduit to flow out of the first opening, but the fluid in the external space cannot enter the conduit along the first opening.

Description

Flow guiding device and air-cooled refrigeration equipment with same

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a flow guiding device and air-cooled refrigeration equipment with the same.

Background

The air-cooled refrigeration equipment is a refrigeration equipment which keeps constant low temperature, is an electrical appliance for low-temperature preservation articles commonly used in life, and is widely applied to the fields of business and household.

In the air-cooled refrigeration equipment, an air duct is arranged, and during refrigeration, air with higher temperature in the storage compartment can be sucked into the air duct, then flows around the evaporator and is cooled into air with lower temperature, in the process, frost is condensed on the surface of the evaporator, and then the air passes through the air duct, and the air with lower temperature can flow into the storage compartment, so that refrigeration of the storage compartment is completed. Defrosting the storage compartment is usually required after a certain period of time, at which time the frost on the evaporator surface melts into ice and/or water and falls into the water receiving box; thereafter, the ice and/or water flows along the drain pipe into the evaporation pan where it is evaporated into water vapor, thereby completing the defrosting process of the evaporator.

In the long-term operation of the inventors, when the evaporator cools, the temperature of the air in the air duct decreases, so that the air pressure in the air duct decreases, and the following problems are found: (1) Hot air in the surrounding environment is sucked into the air duct through the drainage pipeline; (2) The ice and/or water in the evaporating dish is sucked back into the water receiving box through the water discharging pipeline; it will be appreciated that both of these situations need to be avoided to the greatest extent, and therefore, how to prevent the occurrence of the two situations in an air-cooled refrigeration apparatus becomes a problem to be solved.

Disclosure of Invention

The invention aims to provide a flow guiding device and air-cooled refrigeration equipment with the same.

In order to achieve one of the above objects, an embodiment of the present invention provides a flow guiding device, including: a conduit and a flexible sheet disposed at an end face of a first opening of the conduit, a first surface of the flexible sheet comprising a first region and a second region, the first region fixedly connected to the end face, wherein the first surface of the flexible sheet is oriented toward the end face; the second area is detachably connected with the end face, the second area can cover the first opening, and the second area is matched with the end face.

As a further improvement of an embodiment of the present invention, the flexible board becomes thicker gradually in a direction of the second region toward the first region.

As a further development of an embodiment of the invention, a plurality of grooves are provided in the second surface of the flexible plate, wherein the second surface faces away from the end surface.

As a further refinement of an embodiment of the invention, the groove crosses the second surface.

As a further improvement of one embodiment of the present invention, a recess is provided in the first surface of the flexible board.

As a further improvement of an embodiment of the present invention, when the duct is placed vertically with the first opening facing downward, the height of the bottom surface of the recess becomes gradually larger in the direction of the second region toward the first region.

As a further improvement of an embodiment of the invention, the height of the first surface becomes progressively greater in the direction of the second region towards the first region when the duct is placed vertically with the first opening facing downwards.

As a further improvement of an embodiment of the present invention, the conduit and the flexible plate are both made of rubber materials.

The embodiment of the invention also provides air-cooled refrigeration equipment, which comprises: the evaporator, a water receiving box positioned below the evaporator, an evaporation dish, a drain pipe and the flow guiding device; the inlet of the drain pipe is communicated with the water receiving box, the outlet of the drain pipe is communicated with the second opening of the guide pipe of the flow guiding device, and the flow guiding device is positioned right above the evaporation dish.

As a further development of an embodiment of the invention, the first opening of the conduit is directed downwards.

As a further improvement of an embodiment of the present invention, the drain pipe includes a first pipe disposed obliquely, and a second pipe disposed vertically; the high end of the first pipeline is communicated with the water receiving box, and the low end of the first pipeline is communicated with the upper end of the second pipeline; the lower end of the second pipeline is communicated with a second opening of the guide pipe of the flow guiding device.

As a further improvement of an embodiment of the present invention, a first buckle connection device is disposed at the lower end of the first pipe, and a second buckle connection device is disposed at the upper end of the second pipe; the second snap connection means can be inserted axially into the first snap connection means and rotated circumferentially to interlock in a snap manner.

As a further improvement of an embodiment of the present invention, the second snap connection device includes a plurality of protruding claws, and the first snap connection device includes a plurality of through slots and notch slots that are matched with the protruding claws; after the protruding claw is inserted into the through groove and rotates along the circumferential direction, the protruding claw falls into the notch clamping groove, so that the lower end of the first pipeline and the upper end of the second pipeline are locked in a buckling mode.

As a further improvement of an embodiment of the present invention, the lower end of the first pipe is inserted into the inner channel of the upper end of the second pipe, and an annular elastic member for sealing the first pipe and the second pipe is disposed on the outer surface of the lower end of the first pipe.

Compared with the prior art, the invention has the technical effects that: the embodiment of the invention provides a flow guiding device and air-cooled refrigeration equipment with the same, wherein the flow guiding device allows fluid in a conduit to flow out of a first opening, but fluid in an external space cannot enter the conduit along the first opening, when an evaporator refrigerates a storage compartment, the temperature of air in an air channel can be reduced, the air pressure in the air channel can be reduced, and because the flow guiding device is arranged at an outlet of a drain pipe, when the evaporator refrigerates, the air pressure in the air channel is reduced, and hot air in the surrounding environment and ice and/or water in an evaporation dish cannot be sucked into the air channel or a water receiving box.

Drawings

FIG. 1A is a perspective view of a deflector in an embodiment of the present invention;

FIGS. 1B-1D are exploded views of a deflector according to an embodiment of the present invention;

FIG. 1E is a cross-sectional view of a deflector in an embodiment of the present invention;

fig. 2A is a schematic structural diagram of an air-cooled refrigeration apparatus according to an embodiment of the present invention;

fig. 2B is a first perspective view of a drain pipe in an embodiment of the invention;

FIGS. 2C and 2D are first exploded views of the drain pipe in accordance with an embodiment of the present invention at different angles;

FIG. 2E is a first cross-sectional view of a drain pipe in an embodiment of the invention;

fig. 3A is a second perspective view of a drain pipe in an embodiment of the invention;

FIG. 3B is a second exploded view of the drain pipe in an embodiment of the invention;

fig. 3C is a second cross-sectional view of the drain pipe in an embodiment of the invention.

Detailed Description

The present invention will be described in detail below with reference to the embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

Terms such as "upper," "above," "lower," "below," and the like, as used herein, refer to a spatial relative position, and are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish one such descriptive object from another. For example, a first surface may be referred to as a second surface, and similarly a second surface may also be referred to as a first surface, without departing from the scope of the present application.

An embodiment of the present invention provides a flow guiding device, as shown in fig. 1A to 1C, including:

a conduit 1 and a flexible sheet 2 arranged at an end face 111 of a first opening 11 of the conduit 1, the first surface 21 of the flexible sheet 2 comprising a first region 211 and a second region 212, the first region 211 being fixedly connected to the end face 111, wherein the first surface 21 of the flexible sheet 2 is facing the end face 111;

the second area 212 is detachably connected to the end face 111, the second area 212 can cover the first opening 11, and the second area 212 is matched with the end face 111. Here, since the second region 212 is mated with the end face 111, the second region 212 seals the first opening 11 when the second region 212 is connected with the end face 111; similarly, when the second region 212 is separated from the end face 111, a gap exists between the second region 212 and the end face 111, and fluid can flow into the first opening 11 or out of the first opening 11.

As shown in fig. 1A to 1C, the catheter 1 includes a second opening 12, a first opening 11, and an internal passage that is located inside the catheter 1 and communicates the second opening 12 and the first opening 11.

The flexible board 2 is made of flexible material and comprises a first surface 21 and a second surface 22 which are opposite, wherein the first surface 21 faces the end face 111, and the second surface 22 faces away from the end face 111; when the pressure difference between the first and second surfaces (i.e., the pressure received by the first surface 21 minus the pressure received by the second surface 22) is sufficiently large (i.e., equal to or greater than a preset value), the flexible plate 2 deforms, and at this time, the second region 212 is away from the end surface 111, and a gap is formed between the second region 212 and the end surface 111, and at this time, the flexible plate 2 does not block the first opening 11, and fluid (e.g., liquid or gas, etc.) in the internal channel flows out from the gap between the flexible plate 2 and the end surface 111, and it is understood that at this time, external fluid can also enter the internal channel along the gap; when the pressure difference between the first and second surfaces (i.e. the pressure applied to the first surface 21 minus the pressure applied to the second surface 22) is not large (i.e. less than a predetermined value), the flexible plate 2 is not deformed, and the second region 212 seals the connection end face 111, at this time, the flexible plate 2 blocks the first opening 11, so that the fluid in the external space cannot enter the internal channel along the first opening 11. In summary, when fluid is injected into the internal passage through the second opening 12 and a sufficiently large pressure (the pressure satisfies that the pressure difference between the first surface 21 and the second surface 22 is equal to or larger than a preset value) is applied to the internal passage, the fluid flows out along the first opening 11, but when the fluid is desired to be sucked from the second opening 12, the pressure in the internal passage is sufficiently small (the pressure satisfies that the pressure difference between the first surface 21 and the second surface 22 is smaller than the preset value), the flexible plate 2 blocks the first opening 11, and at this time, the fluid in the external space cannot enter the internal passage, that is, cannot be sucked from the second opening 12, that is, the flow guiding device can prevent the backflow of the fluid from the first opening 11.

Optionally, the preset value is greater than zero.

Preferably, as shown in fig. 1D, the flexible board 2 becomes thicker gradually in a direction of the second region 212 toward the first region 211 (for example, as shown by a dotted arrow in fig. 1D).

Here, the first surface 21 is divided into a first area 211 and a second area 212, wherein the first area 211 is fixedly connected to the end surface 111, and the second area 212 is detachably connected to the end surface 111, and it is understood that when the pressure difference between the first surface 21 and the second surface 22 is equal to or greater than a preset value, the second area 212 is far from the end surface 111, a gap is generated between the second area 212 and the end surface 111, and conversely, a sealed connection is formed between the second area 212 and the end surface 111.

Here, it is understood that, when a force is applied to a certain point in the second region 212, the further the force is from the first region 211, the larger the moment generated by the force at the junction of the first and second regions is, and as the use time is prolonged, there is a possibility that the flexible board 2 does not close the first opening 11 even if the pressure difference between the first and second surfaces is not large, that is, the elasticity of the flexible board 2 is deteriorated. In practical use, the conduit 1 is generally in a vertical state, i.e. the second opening 12 is upward, and the first opening 11 is downward, at this time, the gravity of the second region 212 is parallel to the pressure applied to the first surface 21, so that the flexible board 2 is easier to unseal the first opening 11, and in order to reduce the probability of this occurrence, the thinner the portion further from the first region 211, i.e. the lighter the portion, the smaller the moment generated by the gravity of the second region 212 at the junction of the first and second regions; the thicker the portion closer to the first region 211 is, the better the elasticity of the flexible board 2 is made.

Preferably, as shown in fig. 1C and 1D, a plurality of grooves 221 are provided in the second surface 22 of the flexible board 2, wherein the second surface 22 faces away from said end surface 111. Here, when the pressure difference between the first surface 21 and the second surface 22 is equal to or greater than a preset value, the flexible sheet 2 is easily bent as shown by the arrows in fig. 1C and 1D, and thus, the provision of the groove 221 in the second surface 22 facilitates bending of the flexible sheet 2, i.e., fluid in the internal passage in the catheter 1 flows out along the first opening 11.

Preferably, the groove 221 traverses the second surface 22. The grooves 221 cross the second surface 22, which is very convenient for bending the flexible board 2.

Preferably, a recess 213 is provided in the first surface 21 of the flexible board 2. In actual use, the following may occur: when there is some liquid in the internal passage of the conduit 1, it is possible that the liquid flows out along the gap between the end face 111 and the flexible plate 2 even if it is not desired to flow out from the first opening 11, and a recess 213 is provided in the first surface 21, the liquid may be temporarily stored in the recess 213. Alternatively, when the duct 1 is in a vertical state, i.e., the second opening 12 is upward and the first opening 11 is downward, if the recess 213 is filled with water, the pressure difference between the first surface 21 and the second surface 22 is equal to or greater than a preset value.

Preferably, as shown in fig. 1E, when the catheter 1 is vertically placed with the first opening 11 facing downward, the height of the bottom surface of the recess 213 gradually increases in the direction of the second region 212 toward the first region 211 (as in the direction of the dotted arrow in fig. 1E). Here, when the fluid gathers in the recess 213, the fluid will flow in a direction away from the first region 211, and it will be understood that the moment generated by the gravity of the fluid at the junction of the first and second regions will become greater, so it is easier to bend the second region 212, i.e. it is more advantageous for the second region 212 to be away from the end face 111.

Preferably, as shown in fig. 1E, when the catheter 1 is placed vertically with the first opening 11 facing downward, the height of the first surface 21 gradually increases in the direction of the second region 212 toward the first region 211 (as in the direction of the dotted arrow in fig. 1E). Here, when the fluid gathers on the first surface 21, the fluid will flow away from the first region 211, and it will be understood that the moment generated by the gravity of the fluid at the junction of the first and second regions will become greater, so it is easier to bend the second region 212, i.e. it is more advantageous for the second region 212 to be away from the end face 111.

Preferably, the catheter 1 and the flexible board 2 are made of rubber materials.

Here, as shown in fig. 1A to 1D, in practice, the catheter 1 and the flexible board 2 may be integrally formed and made of a rubber material, and as shown in fig. 1A, the production steps may be: (1) Providing an initial pipeline, wherein one end of the initial pipeline is provided with an opening, and the other end of the initial pipeline is provided with a closed structure; (2) The initial tube is cut along the dashed arrow in fig. 1A, but is not cut off, resulting in a tube 1 and a flexible sheet 2. Here, a saw may be used to cut the initial tube, as shown in fig. 1D, eventually making the connection line between the first region 211 and the second region 212 approximately straight, optionally with the grooves 221 parallel to the straight line.

Alternatively, as shown in fig. 1A-1D, the cross-sectional area of the outer surface of the catheter 1 is gradually reduced in the direction of the first opening 11 toward the second opening 12, and it is understood that the truncated cone may be conveniently inserted into other tubular bodies during use.

Alternatively, in a direction in which the first opening 11 faces the second opening 12 (for convenience of description, the direction is described as a first direction), the cross-sectional area of the internal passage is circular as shown in fig. 1B, and the end face 111 is not perpendicular to the first direction.

A second embodiment of the present invention provides an air-cooled refrigeration apparatus, as shown in FIG. 2A, including:

the evaporator 41, the water receiving box 42 below the evaporator 41, the evaporation pan 32, the drain pipe 5 and the flow guiding device in the first embodiment;

the inlet of the drain pipe 5 communicates with the water receiving box 42 and the outlet communicates with the second opening 12 of the conduit 1 of the deflector, which is located directly above the evaporation pan 32.

Here, when the defrosting process is performed on the evaporator 41, the frost on the surface of the evaporator 41 is melted into ice and/or water, which is dropped into the water receiving box 42, and then the ice and/or water is flowed to the second opening 12 of the flow guiding device along the drain pipe 5, and then to the first opening 11, and is gathered at the first surface 21 of the flexible plate 2, and when the ice and/or water is gathered at the first surface 21 by a certain amount, that is, when the pressure difference between the first surface 21 and the second surface 22 is equal to or greater than a preset value, the second region 212 in the first surface 21 is far from the end surface 111, so that the ice and/or water can flow into the evaporation pan 32.

Here, when the evaporator 41 cools the storage compartment 43, the temperature of the air in the air duct is lowered, and the air pressure in the air duct is lowered, and since the flow guide means is provided at the outlet of the drain pipe 5, when the evaporator 41 cools, the air pressure in the air duct is lowered, and neither the hot air in the surrounding environment nor the ice and/or water in the evaporation pan 32 can be sucked into the air duct or the water receiving box.

Alternatively, as shown in fig. 2A, the air-cooled refrigeration device may be an air-cooled horizontal refrigerator. In the air-cooled horizontal refrigerator, the press cabin 3 and the evaporator compartment (i.e., the compartment in which the evaporator 41 is located in the air duct) are arranged adjacently side by side, the water receiving box 42 is arranged below the evaporator 41 in the evaporator compartment, the evaporation pan 32 is arranged in the press cabin 3, the water discharge pipe 5 is arranged in the wall between the evaporator compartment and the press cabin 3, the height of the evaporation pan 32 is lower than the water receiving box 42, so that ice and/or water in the water receiving box 42 can flow into the evaporation pan 32 along the water discharge pipe 5, optionally, the evaporation pan 32 can evaporate the ice and/or water in the evaporation pan 32 by utilizing the heat generated by the compressor 31 during operation, and in addition, a ventilation hole which is communicated with the external space is arranged in the wall of the press cabin 3, so that the water vapor generated by the evaporation pan 32 can flow into the air of the external space along the ventilation hole. Optionally, a heating wire is provided in the water receiving box 42, so that ice in the water receiving box 42 can be melted into water, and can flow into the diversion device through the drain pipe 5 conveniently.

Optionally, the deflector extends into the evaporation pan 32. In practice, the air-cooled refrigeration apparatus generally has electronic components, so that the air guiding device may be inserted into the evaporation pan 32 in order to prevent water discharged from the air guiding device from splashing out of the evaporation pan 32, i.e. the distance between the first opening 11 of the air guiding device and the evaporation pan 32 is smaller, so that ice and/or water dropped from the first opening 11 may be effectively prevented from splashing out of the evaporation pan 32.

Preferably, the first opening 11 of the catheter 1 is facing downwards. The second opening 12 of the conduit 1 is here facing upwards and the first opening 11 is facing downwards, i.e. the flow guiding device is arranged vertically.

Preferably, as shown in fig. 2B to 2E, the drain pipe 5 includes a first pipe 51 disposed obliquely, and a second pipe 52 disposed vertically; the high end 511 of the first pipe 51 communicates with the water receiving box 42 and the low end 512 communicates with the upper end 521 of the second pipe 52; the lower end 522 of the second conduit 52 communicates with the second opening 12 of the conduit 1 of the deflector. Here, as shown by the dotted arrow in fig. 2E, the ice and/or water in the water receiving box 42 flows first in the first duct 51 in an obliquely downward direction, then flows into the second duct 52, and then flows into the deflector in the second duct 52 in a vertical direction. Here, as shown in fig. 2A, the high end 511 of the first duct 51 is exposed in the evaporator compartment and connected to the water receiving box 42 (e.g., connected to the bottom of the water receiving box 42, or the bottom of one side), the low end is exposed in the press housing 3, and the remaining portion of the first duct 51 is disposed in the wall between the evaporator compartment and the press housing 3. Here, at the time of production, the first pipe 51 may be first installed in the wall between the evaporator compartment and the press housing 3 such that the high end 511 communicates with the water receiving box 42 and the low end 512 is exposed to the press housing 3, and then the foaming material is injected into the wall between the evaporator compartment and the press housing 3, and after the foaming is completed, the second pipe 52 may be installed in the press housing 3, as will be understood, which is very convenient for production.

Here, as shown in fig. 2E, in the direction in which the high end 511 points to the low end 512, the cross section of the internal passage of the first duct 51 becomes gradually smaller. Here, since the cross section of the upper end 511 may be large, ice in the water receiving box 42 easily flows into the first duct 51, and it is understood that since the lower end 512 is exposed to the press housing 3, heat generated by the compressor 31 in operation is introduced into the first duct 51 along with air, so that ice entering the first duct 51 may be melted, and then becomes smaller and smaller, and then may flow into the second duct 52, and finally flow into the flow guide device. It will be appreciated that in the deflector the gap between the flexible plate 2 and the end face 111 will not normally be so large that when there is a relatively large volume of ice in the conduit 1, it will not easily flow out of the first opening 11, where in the direction of the high end 511 towards the low end 512, a relatively large volume of ice will not easily enter the second conduit 52, i.e. the deflector, due to the gradually decreasing cross-section of the internal passage of the first conduit 51.

Preferably, as shown in fig. 2B-2D, the lower end 512 of the first pipe 51 is provided with a first snap connection means 513, and the upper end 521 of the second pipe 52 is provided with a second snap connection means 523; the second snap connection means 523 can be axially inserted into the first snap connection means 513 and rotated in the circumferential direction so as to be interlocked in a snap manner. Here, during the production, only the second snap connection means 523 is inserted in alignment with the first snap connection means 513 and then rotated, which is very convenient for the production, it will be appreciated that it is necessary to secure the lower end 522 of the second pipe 52 downward after rotating the second snap connection means 523 in the circumferential direction.

Preferably, as shown in fig. 2B-2D, the second snap connection means 523 comprises a plurality of protruding claws 5231, and the first snap connection means 513 comprises a plurality of through slots 5131 and notch slots 5132 which are matched with the protruding claws 5231; after the protruding claws 5231 are inserted into the through-grooves 5131 and rotated in the circumferential direction, the protruding claws 5231 are dropped into the notch clamping grooves 5132, thereby locking the lower end 512 of the first pipe 51 and the upper end 521 of the second pipe 52 in a snap-fit manner. Here, as shown in fig. 2C and 2D, the protruding claws 5231 are first inserted into the through grooves 5131 in the direction of the dotted arrow and then rotated in the circumferential direction shown by the solid arrow so that the protruding claws 5231 fall into the notch clamping grooves 5132, whereby the first and second pipes 51 and 52 are locked. Alternatively, as shown in fig. 2B to 2D, the number of the protruding claws 5231 is two, and the protruding claws are provided on the outer surface of the upper end 521 of the second pipe 52 and uniformly distributed along the circumferential direction of the second pipe 52; the number of the through grooves 5131 and the number of the notch clamping grooves 5132 are two, and the through grooves 5131 and the notch clamping grooves 5132 are arranged at the lower end 512 of the first pipeline 51 and are uniformly distributed along the circumferential direction of the first pipeline 51. Alternatively, as shown in fig. 2B-2D, the second conduit 52 extends first in a horizontal direction, then bends downward, and then extends in a vertical direction.

As shown in fig. 2E, at the lower end 512 of the first pipe 51, a first annular boss 514 is provided, the first annular boss 514 abutting against the end face of the upper end 521 of the second pipe 52, where the first annular boss 514 abuts against the end face of the upper end 521 of the second pipe 52 just when the protruding claw 5231 can fall into the notch 5132; the lower end 512 of the first pipe 51 can be inserted into the inner channel of the upper end 521 of the second pipe 52, where an annular elastic member 515 may be provided at a side of the first annular boss 514 facing the second pipe 52, the annular elastic member 515 may seal the first and second pipes, and the annular elastic member 515 may also apply an elastic force (the elastic force direction is shown by solid arrows in fig. 2E) to the end surface of the upper end 521 of the second pipe 52 facing away from the first annular boss 514, so that the protruding claw 5231 can be more firmly fixed in the notch clamping groove 5132.

Here, as shown in fig. 2B to 2E, a second annular boss 516 is further provided on the lower end 512 of the first pipe 51, and the second annular boss 516 is further away from the end face of the upper end of the second pipe 52 than the first annular boss 514. Here, a through hole may be provided in the bin wall 33 of the press bin 3 (the bin wall 33 is directed towards the evaporator compartment, the bin wall 33 is a part of the wall between the evaporator compartment and the press bin 3), the size of the through hole is larger than the size of the cross section of the first annular boss 514 and smaller than the size of the cross section of the second annular boss 516, so that, when mounted, the lower end 512 of the first duct 51 is inserted into said through hole of the bin wall 33 in the wall between the evaporator compartment and the press bin 3, after which the second annular boss 516 abuts against the bin wall 33, it being understood that the bin wall 33 and the second annular boss 516 are able to fix the first duct 51, whereby the first duct 51 is effectively prevented from sliding during foaming. Here, as shown in fig. 2B to 2E, a flange 517 and a plurality of buckles 518 may be disposed at the high end 511 of the first pipe 51, so that the high end 511 of the first pipe 51 may be firmly fixed in a wall of the evaporator compartment (the wall faces the press bin 3, and through holes and buckle holes matched with the buckles 518 are disposed in the wall), thereby effectively preventing the first pipe 51 from sliding during foaming.

In a third embodiment of the present invention, as shown in fig. 3A-3C, the air-cooled refrigeration apparatus is different from the air-cooled refrigeration apparatus in the second embodiment in that the lower end 512 of the first pipe 51 is inserted into the inner channel of the upper end 521 of the second pipe 52, and an annular elastic member 515 for sealing the first pipe and the second pipe is disposed on the outer surface of the lower end 512 of the first pipe 51. Here, the outer surface of the lower end 512 of the first pipe 51 has a size equal to or smaller than that of the inner passage of the upper end 521 of the second pipe 52, so that the lower end 512 of the first pipe 51 can be inserted into the inner passage of the upper end 521 of the second pipe 52, which is very convenient for installation, and furthermore, the ring-shaped elastic member 515 can prevent water from flowing out of the gap between the first and second pipes.

Here, a plurality of protrusions 5211 are provided in the inner wall of the upper end 521 of the second pipe 52, and these protrusions 5211 may serve to catch the ring-shaped elastic member 515, thereby making the connection between the first and second pipes more firm. For example: along the extension of the second pipe 52, two annular bosses are provided in the inner wall of the upper end 521, so that the annular elastic member 515 can be caught in a groove between the two annular bosses, and it is understood that the annular bosses can be removed to obtain a plurality of unconnected protruding points 5211. In addition, an annular boss is provided in the inner wall of the upper end 521 so that the annular spring 515 can bear against the annular boss, it being understood that removal of the annular boss results in a number of unconnected bumps 5211.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims (12)

1. A deflector device, comprising:

a conduit (1) and a flexible sheet (2) arranged at an end face (111) of a first opening (11) of the conduit (1), a first surface (21) of the flexible sheet (2) comprising a first region (211) and a second region (212), the first region (211) being fixedly connected to the end face (111), wherein the first surface (21) of the flexible sheet (2) is directed towards the end face (111), the first surface (21) is provided with a recess (213), the height of the bottom surface of the recess (213) gradually increasing in the direction of the second region (212) towards the first region (211) when the conduit (1) is placed vertically and the first opening (11) is directed downwards;

the second area (212) is detachably connected with the end face (111), the second area (212) can cover the first opening (11), and the second area (212) is matched with the end face (111).

2. A deflector according to claim 1, wherein:

the flexible sheet (2) becomes thicker gradually in the direction of the second region (212) toward the first region (211).

3. The flow guide device of claim 2, wherein:

a plurality of grooves (221) are arranged on the second surface (22) of the flexible board (2), wherein the second surface (22) faces away from the end surface (111).

4. A deflector according to claim 3, wherein:

the groove (221) crosses the second surface (22).

5. A deflector according to claim 1, wherein:

when the duct (1) is placed vertically with the first opening (11) facing downwards, the height of the first surface (21) becomes progressively greater in the direction of the second region (212) towards the first region (211).

6. A deflector according to claim 1, wherein:

the guide pipe (1) and the flexible board (2) are made of rubber materials.

7. An air-cooled refrigeration device, comprising:

an evaporator (41), a water receiving box (42) located below the evaporator (41), an evaporation pan (32), a drain pipe (5) and a deflector device according to any one of claims 1-6;

the inlet of the drain pipe (5) is communicated with the water receiving box (42) and the outlet is communicated with the second opening (12) of the guide pipe (1) of the flow guiding device, and the flow guiding device is positioned right above the evaporation dish (32).

8. An air-cooled refrigeration unit as recited in claim 7 wherein:

the first opening (11) of the catheter (1) is directed downwards.

9. An air-cooled refrigeration unit as recited in claim 7 wherein:

the drain pipe (5) comprises a first pipeline (51) which is obliquely arranged and a second pipeline (52) which is vertically arranged;

the high end (511) of the first pipeline (51) is communicated with the water receiving box (42), and the low end (512) of the first pipeline (51) is communicated with the upper end (521) of the second pipeline (52);

the lower end (522) of the second pipeline (52) is communicated with a second opening (12) of the guide pipe (1) of the flow guiding device.

10. An air-cooled refrigeration unit as recited in claim 9 wherein:

the lower end (512) of the first pipeline (51) is provided with a first buckle connection device (513), and the upper end (521) of the second pipeline (52) is provided with a second buckle connection device (523); the second snap connection means (523) can be axially inserted into the first snap connection means (513) and rotated in the circumferential direction so as to be interlocked in a snap manner.

11. An air-cooled refrigeration unit as recited in claim 10 wherein:

the second buckle connection device (523) comprises a plurality of protruding claws (5231), and the first buckle connection device (513) comprises a plurality of through grooves (5131) and notch clamping grooves (5132) which are matched with the protruding claws (5231);

after the protruding claw (5231) is inserted into the through groove (5131) and rotates along the circumferential direction, the protruding claw (5231) falls into the notch clamping groove (5132), so that the lower end (512) of the first pipeline (51) and the upper end (521) of the second pipeline (52) are locked in a clamping manner.

12. An air-cooled refrigeration unit as recited in claim 9 wherein:

the lower end (512) of the first pipeline (51) is inserted into the inner channel of the upper end (521) of the second pipeline (52), and an annular elastic piece (515) for sealing the first pipeline and the second pipeline is arranged on the outer surface of the lower end (512) of the first pipeline (51).

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