CN212157820U

CN212157820U - Low-temperature storage device

Info

Publication number: CN212157820U
Application number: CN202020450877.1U
Authority: CN
Inventors: 刘辉; 黄鹏昌; 朱宝平
Original assignee: Hisense Ronshen Guangdong Freezer Co Ltd; Qingdao Hisense Commercial Cold Chain Co Ltd
Current assignee: Qingdao Hisense Commercial Cold Chain Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-15
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a low temperature storage device relates to low temperature storage device technical field. The invention aims to solve the problem that the drain pipe is easy to leak cold after the existing low-temperature storage device is used for a long time. The cryogenic storage device includes: the refrigerator comprises a refrigerator body, a water inlet, a water outlet and a water outlet, wherein the refrigerator body is used for forming a refrigeration chamber; the upper end pipe orifice of the drain pipe is communicated with the drain outlet, and the lower end of the drain pipe is provided with a drain hole which is a water outlet of the drain pipe; when the drain hole is filled with water, the water used to fill the drain hole may stay at the drain hole under surface tension to form a liquid seal. The utility model can be used for draining low-temperature storage devices such as refrigerators and freezers.

Description

Low-temperature storage device

Technical Field

The utility model relates to a low temperature storage device technical field especially relates to a low temperature storage device.

Background

At present, no matter the refrigerator is a direct cooling type or an air cooling type, in the refrigeration process of the refrigerator, wet air in the refrigerator (entering the refrigerator when a door of the refrigerator is opened and closed) is condensed to the low-temperature surface of an evaporator to form frost, frosting on the surface of the evaporator can generate chemical defrosting water after being removed through a defrosting system or manually, the defrosting water needs to be discharged in time, otherwise, the defrosting water can flow to all places of a refrigerator chamber, bacteria are easily bred, and stored food is easily rotten and deteriorated.

In order to discharge defrosting water in a refrigerator, a water discharge port is directly arranged at the lowest point of a compartment of the refrigerator, one end of the water discharge pipe (a soft straight pipe or a hard straight pipe) is connected with a water discharge port in the compartment, and the other end of the water discharge pipe directly extends out of the compartment and is opposite to an evaporation dish or a water receiving tray. However, although the structure of the drainage mode is simple, the temperature in the refrigerator room is lower than the outside temperature, and if the drainage pipe is always communicated with the outside, the cold air in the refrigerator room can be lost.

In order to solve the problem of cold leakage of the drain pipe, chinese patent CN102927734 discloses a refrigerator, wherein a rubber sleeve with a sealing cover is wrapped at the water outlet of the drain pipe, the sealing cover is in an initial state when there is little condensed water in the drain pipe to close the rubber sleeve, and the sealing cover deforms under the action of gravity of the condensed water when there is much condensed water to open the rubber sleeve and drain the drain pipe.

The inventor of the application finds that the rubber sleeve is easy to age after being used for a long time, so that the rubber sleeve and the drain pipe are easy to be firmly fixed and fall off, and the drain pipe is exposed and cooled; meanwhile, the sealing cover of the rubber sleeve loses elasticity after aging, the sealing cover is easy to deform and cannot be restored to an initial state, the drain pipe is always in an open state, and therefore dew and cold of the drain pipe are caused.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a low temperature storage device for solve current low temperature storage device after using for a long time, the problem of leaking cold appears easily in the drain pipe.

In order to achieve the above object, an embodiment of the present invention provides a low temperature storage device, including: the refrigerator comprises a refrigerator body, a water inlet, a water outlet and a water outlet, wherein the refrigerator body is used for forming a refrigeration chamber, and the bottom wall of the refrigeration chamber is provided with the water outlet; the upper end pipe orifice of the drain pipe is communicated with the drain outlet, a drain hole is formed at the lower end of the drain pipe, and the drain hole is a water outlet of the drain pipe; when the drain hole is filled with water, the water for filling the drain hole can stay at the drain hole under the action of surface tension to form a liquid seal.

The embodiment of the utility model provides a low temperature storage device, it leaks from the drain pipe to utilize the cold volume that the exhaust comdenstion water avoided refrigerating the room to the wash port shutoff, the problem of dew cold has been solved under the condition that does not increase the part, thus, make the structure of this drain pipe comparatively simple, need not to use valve spare parts such as rubber sleeve, not only be favorable to reducing the cost of this drain pipe, but also can solve and use the rubber sleeve to use and drop because of ageing bringing of being of a specified duration, lose the problem of the unable drain pipe of closing that elasticity caused, can guarantee that the cold volume of this refrigerator at the in-process refrigeration room of long-term use can not spill through the drain pipe from this.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an installation structure of a drain pipe of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a state of water blocking the drain hole when the drain pipe of the embodiment of the present invention drains water;

fig. 3 is a schematic structural view of a drain pipe according to some embodiments of the present invention (the drain hole is a tapered counter bore);

fig. 4 is a schematic structural view of a drain pipe according to some embodiments of the present invention (the drain hole is a straight hole);

fig. 5 is a schematic view of the installation of the drain pipe and the bottom wall according to some embodiments of the present invention (the limiting portion of the drain pipe is a tapered pipe section);

fig. 6 is a schematic view of the installation of the drain pipe and the bottom wall according to some embodiments of the present invention (the limiting portion of the drain pipe is a step wall).

Reference numerals: a box body 1; a refrigerating compartment 11; a bottom wall 12; a drain outlet 121; mounting holes 122; a stopper portion 123; a flow guide surface 124; a water discharge pipe 2; an upper end pipe orifice 21 of the water discharge pipe 2; a drain hole 22; a tapered bore section 221; a straight bore section 222; a flange 23; a seal dam 24; a first tube section 25; a second tube segment 26; a stopper portion 27; a compressor 3; a water pan 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The utility model provides a low temperature storage device can be refrigerator, freezer, fridge etc. have the refrigeration room and need through the storage device of drain pipe discharge comdenstion water.

The principle of the present invention will be described below by taking a refrigerator as an example, and other low-temperature refrigeration devices can be specifically configured with reference to the structure in the embodiment of the refrigerator.

As shown in fig. 1, the refrigerator in the embodiment of the present invention includes: the refrigerator comprises a refrigerator body 1, wherein the refrigerator body 1 is used for forming a refrigeration chamber 11, and a drainage outlet 121 is formed in the bottom wall 12 of the refrigeration chamber 11; wherein, the refrigerating compartment 11 can be a refrigerating compartment;

as shown in fig. 1, the refrigerator further includes: the water draining pipe 2 is provided with an upper end pipe orifice 21 communicated with the water draining outlet 121, a water draining hole 22 is formed at the lower end of the water draining pipe 2, and the water draining hole 22 is a water outlet of the water draining pipe 2; as shown in (b) of fig. 2, when the drain hole 22 is filled with water, the water for filling the drain hole 22 may stay at the drain hole 22 by surface tension to form a liquid seal.

When the drain pipe 2 drains a large amount of condensed water, as shown in fig. 2 (a), the condensed water drains through the drain hole 22 at the lower end of the drain pipe 2 under the action of its own gravity, and the drain hole 22 is blocked by the condensed water in a flowing state at this time, so as to prevent the cold energy of the refrigerating compartment 11 from leaking out of the drain pipe 2; when the drain pipe 2 discharges a small amount of condensate, as shown in fig. 2 (b), when the drain hole 22 is filled with the condensate droplets remaining in the drain pipe 2, the condensate droplets overcome the gravity thereof by the surface tension, and stay at the position of the drain hole 22 to form a liquid seal, thereby preventing the cold of the refrigerating compartment 11 from leaking out of the drain pipe 2.

The embodiment of the utility model provides a refrigerator, it leaks from drain pipe 2 to utilize the cold volume that exhaust comdenstion water avoided refrigeration room 11 to the shutoff of wash port 22, the problem of dew cold has been solved under the condition that does not increase the part, thus, make this drain pipe 2's structure comparatively simple, need not to use valve spare parts such as rubber sleeve, not only be favorable to reducing this drain pipe 2's cost, but also can solve and use the rubber sleeve to use and drop because of ageing bringing of being of a specified duration, lose the unable problem of closing drain pipe 2 that elasticity caused, can guarantee that this refrigerator can not spill through drain pipe 2 at the cold volume of long-term use in-process refrigeration room 11 from this.

In the drainage pipe 2, the structure type of the drainage hole 22 is not unique, fig. 4 shows an embodiment in which the drainage hole 22 is a straight hole, in this embodiment, the drainage hole 22 should not be too large or too small, when the drainage hole 22 is too large, the drainage hole 22 needs larger condensed water drops to fill, since the gravity applied to the larger condensed water drops is larger, the upper limit of the size of the water drops suspended by the surface tension of the condensed water drops is more easily approached, and at this time, the balance between the surface tension of the condensed water drops and the gravity is easily broken by external force (such as vibration), so that the condensed water drops drop; when the drain hole 22 is too small, it is easy to make the drainage of the drain pipe 2 difficult and to be easily clogged with foreign substances. Research shows that when the aperture d1 of the drain hole 22 is between 8 mm and 10mm, condensed water drops can stably stay at the drain hole 22 and are not easy to drop due to external force, and smooth drainage of the drain pipe 2 is ensured.

Fig. 3 shows an embodiment in which the water discharge hole 22 is a tapered counterbore, and in this embodiment, the tapered counterbore includes a tapered bore section 221 and a straight bore section 222 located on the lower side of the tapered bore section 221, and the upper end of the straight bore section 222 is connected to the small end of the tapered bore section 221. When the drain hole 22 is a tapered counter bore, the tapered bore section 221 of the tapered counter bore may function as a flow guide to facilitate the condensed water to drop into the straight bore section 222, so as to form a liquid seal under the action of surface tension.

In this embodiment, as shown in fig. 3, the diameter d3 of the straight section 222 may be 8-10 mm, so that not only the condensed water drops can stably stay at the drain hole 22 and are not easy to drop due to external force, but also the smooth drainage of the drain pipe 2 is ensured.

In this embodiment, as shown in fig. 3, the aperture d2 at the large end of the conical hole section 221 should not be too large or too small, and at a certain depth of the conical hole section 221, if the aperture d2 at the large end of the conical hole section 221 is too large, the aperture wall of the conical hole section 221 is relatively smooth, so that the flow guiding effect for the condensed water drops is reduced; if the aperture d2 of the large end of the tapered bore section 221 is too small, which makes the bore wall of the tapered bore section 221 steeper, condensed water droplets around the drain hole 22 do not easily pass through the tapered bore section 221 into the straight bore section 222. Research shows that when the difference between the diameter d2 of the large end of the tapered hole section 221 and the diameter d3 of the straight hole section 222 is 2-3 mm, that is, the diameter d2 of the large end of the tapered hole section 221 is 2-3 mm larger than the diameter d3 of the straight hole section 222, the hole wall of the tapered hole section 221 has a good flow guiding effect on condensed water droplets, and the condensed water droplets around the drain hole 22 can conveniently enter the straight hole section 222 through the tapered hole section 221.

In the drain pipe 2, as shown in fig. 3, a drain hole 22 may be opened on a closure flap 24 located at the lower end of the drain pipe 2; however, the lower end of the drain pipe 2 may be tapered, and the drain hole 22 may be a lower end nozzle of the drain pipe 2.

In the embodiment where the drain hole 22 is opened on the baffle 24, as shown in fig. 3 and 4, the hole depth h of the drain hole 22 may be in the range of 2-2.5 mm, and the specific size may be determined by the thickness of the baffle 24.

In the refrigerator according to the embodiment of the present invention, the installation manner of the drain pipe 2 is not unique, for example, as shown in fig. 1 and fig. 5, an installation hole 122 is opened on the bottom wall 12 of the refrigeration compartment 11, and the installation hole 122 is located below the drain outlet 121 and is communicated with the drain outlet 121; the drain pipe 2 is inserted into the mounting hole 122, and the upper end nozzle 21 of the drain pipe 2 is disposed opposite to the drain outlet 121.

In addition, the drain pipe 2 may be installed by: the drain outlet 121 penetrates the bottom wall 12 in the thickness direction of the bottom wall 12, and the upper end nozzle 21 of the drain pipe 2 is butted against the drain outlet 121. In contrast to the latter embodiment (shown in fig. 1 and 5), the drain pipe 2 is inserted into the mounting hole 122, so that the space under the bottom wall 12 occupied by the drain pipe 2 can be reduced, and the arrangement of the components (such as the compressor 3 and the water pan 4) in the space under the bottom wall 12 can be optimized.

In the embodiment in which the drain pipe 2 is inserted into the mounting hole 122 to communicate with the drain outlet 121, in order to facilitate the water discharged from the drain outlet 121 to enter the upper end nozzle 21 of the drain pipe 2, as shown in fig. 5, the dimension d4 of the upper end nozzle 21 of the drain pipe 2 is greater than the dimension d6 of the drain outlet 121 in the radial direction of the drain pipe 2. By such an arrangement, the drain outlet 121 can be accurately opposite to the upper end nozzle 21 of the drain pipe 2, thereby facilitating accurate inflow of water discharged from the drain outlet 121 into the drain pipe 2.

In the process of the condensed water in the refrigerating compartment 11 entering the drain pipe 2 through the drain outlet 121, a small part of the condensed water easily enters the gap between the drain pipe 2 and the mounting hole 122 through the upper end of the drain pipe 2, and then leaks out of the lower end of the mounting hole 122. In order to solve the problem that the condensed water easily leaks from the gap between the drain pipe 2 and the mounting hole 122, as shown in fig. 5, the upper end of the drain pipe 2 is formed with a flange 23, and the flange 23 extends in the radial direction of the drain pipe 2 and is embedded in the bottom wall 12 around the mounting hole 122. By providing the flange 23, the flange 23 can perform a sealing function during the process of the condensed water in the refrigerating compartment 11 entering the drain pipe 2 from the drain outlet 121, that is, the flange 23 can prevent the water discharged from the drain outlet 121 from entering the gap between the drain pipe 2 and the mounting hole 122, so that the condensed water can be well prevented from leaking out of the gap between the drain pipe 2 and the mounting hole 122.

In order to facilitate the installation and positioning of the drain pipe 2 and the bottom wall 12, as shown in fig. 5 and 6, the drain pipe 2 comprises a first pipe section 25 and a second pipe section 26 positioned below the first pipe section 25, wherein the inner diameter d4 of the first pipe section 25 is larger than the inner diameter d5 of the second pipe section 26, so that a limiting part 27 is formed at the joint of the first pipe section 25 and the second pipe section 26; a stopper 123 is formed in the mounting hole 122, and the stopper 123 abuts against the stopper 27 to prevent the drain pipe 2 from moving downward. When the drain pipe 2 is mounted, the stopper portion 27 of the drain pipe 2 abuts against the stopper portion 123 of the mounting hole 122, so that the drain pipe 2 is prevented from moving downward, and the drain pipe 2 and the bottom wall 12 are mounted and positioned.

Wherein, as shown in FIG. 3, the inner diameter d4 of the first tube segment 25 may be 34 mm; the inner diameter d5 of the second tube segment 26 may be 20 mm; as shown in fig. 5 and 6, the drain outlet 121 may be a circular hole, and the diameter d6 of the drain outlet 121 may be 30 mm; the stopper 123 may be a stopper flange provided on the hole wall of the mounting hole 122.

In the drainage pipe 2, the structure of the limiting portion 27 is not exclusive, for example, as shown in fig. 5, the limiting portion 27 may be a tapered pipe section, and a large opening end of the tapered pipe section is connected with the first pipe section 25, and a small opening end of the tapered pipe section is connected with the second pipe section 26. In addition, as shown in fig. 6, the stopper 27 may also be a stepped wall for connecting the first pipe section 25 and the second pipe section 26. Compare spacing portion 27 for the step wall, when spacing portion 27 position toper pipeline section, the toper pipeline section not only can lean on the demand that satisfies drain pipe 2 location through leaning on with backstop portion 123, and the toper pipeline section can also play the effect of water conservancy diversion moreover, conveniently with water from first pipeline section 25 water conservancy diversion to second pipeline section 26 in.

In order to facilitate the condensed water in the refrigerating compartment 11 to flow into the drain outlet 121, as shown in fig. 1, a guide surface 124 is formed on the bottom wall 12 around the drain outlet 121, the guide surface 124 is disposed obliquely, and the drain outlet 121 is located at one end of the guide surface 124 at a lower position. Therefore, the condensed water in the refrigerating compartment 11 can flow downwards along the flow guide surface 124 under the action of gravity, so that the condensed water is gathered at the re-drainage outlet 121, and the condensed water in the refrigerating compartment 11 conveniently flows into the drainage outlet 121 and is drained through the drainage pipe 2.

As shown in fig. 1, the refrigerator further includes: the compressor 3 is positioned in the box body 1 and is positioned below the refrigerating chamber 11; and the water receiving plate 4 is arranged at the top of the compressor 3 and is opposite to the water drainage hole 22. By arranging the water pan 4 and enabling the water pan 4 to be opposite to the drain hole 22, the water pan 4 can collect the condensed water drained from the drain hole 22 of the drain pipe 2, and therefore the drained condensed water can be prevented from flowing everywhere; by arranging the water pan 4 on top of the compressor 3, the condensed water in the water pan 4 can be evaporated by using the heat generated by the operation of the compressor 3.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cryogenic storage device, comprising:

the refrigerator comprises a refrigerator body, a water inlet, a water outlet and a water outlet, wherein the refrigerator body is used for forming a refrigeration chamber, and the bottom wall of the refrigeration chamber is provided with the water outlet;

the upper end pipe orifice of the drain pipe is communicated with the drain outlet, a drain hole is formed at the lower end of the drain pipe, and the drain hole is a water outlet of the drain pipe;

when the drain hole is filled with water, the water for filling the drain hole can stay at the drain hole under the action of surface tension to form a liquid seal.

2. The cryopreservation apparatus as claimed in claim 1, wherein the drain hole is a straight hole, and the diameter of the drain hole is 8-10 mm.

3. The cryopreservation device as claimed in claim 1, wherein the drain hole is a conical counter bore, the conical counter bore comprises a conical bore section and a straight bore section located at the lower side of the conical bore section, and the upper end of the straight bore section is connected with the small end of the conical bore section.

4. The cryopreservation device of claim 3, wherein the diameter of the straight hole section is in the range of 8-10 mm;

the difference range of the aperture of the big end of the conical hole section and the aperture of the straight hole section is 2-3 mm.

5. The low-temperature storage device as claimed in any one of claims 1 to 4, wherein the bottom wall is provided with a mounting hole, and the mounting hole is positioned below the drain outlet and communicated with the drain outlet;

the drain pipe is inserted into the mounting hole, and an upper end pipe orifice of the drain pipe is opposite to the drain outlet.

6. The cryopreservation apparatus as claimed in claim 5, wherein the drain pipe has an upper end nozzle larger in size than the drain outlet in a radial direction of the drain pipe.

7. The cryogenic storage device of claim 5, wherein the drain pipe is formed at an upper end thereof with a flange extending in a radial direction of the drain pipe and embedded in the bottom wall around the mounting hole.

8. The cryogenic storage device of claim 5,

the drain pipe comprises a first pipe section and a second pipe section positioned below the first pipe section, wherein the inner diameter of the first pipe section is larger than that of the second pipe section, so that a limiting part is formed at the joint of the first pipe section and the second pipe section;

a stopping part is formed in the mounting hole and abuts against the limiting part to prevent the drain pipe from moving downwards.

9. The cryopreservation apparatus of claim 8, wherein the limiting portion is a tapered pipe section, a large opening end of the tapered pipe section is connected with the first pipe section, and a small opening end of the tapered pipe section is connected with the second pipe section.

10. The cryogenic storage device according to any one of claims 1 to 4, wherein a flow guide surface is formed on the bottom wall around the drain outlet, the flow guide surface is disposed obliquely, and the drain outlet is located at one end of the flow guide surface that is lower.

11. The cryogenic storage device of any one of claims 1 to 4, further comprising:

the compressor is positioned in the box body and is positioned below the refrigerating chamber;

and the water receiving tray is arranged at the top of the compressor and is opposite to the drain hole.