CN218884419U - Refrigeration inner machine and cold chain equipment - Google Patents

Abstract

The utility model relates to a machine and cold chain equipment in refrigeration. The utility model discloses aim at solving the fixed insecure technical problem of the faucet of current refrigeration inner unit. The refrigeration inner machine is applied to cold chain equipment, the refrigeration inner machine includes: a housing formed with an accommodation chamber; the water outlet nozzle is arranged on the shell and is communicated with the accommodating cavity, and liquid in the accommodating cavity can flow out through the water outlet nozzle; a fastener by which the spout is connected to the housing. According to the utility model discloses a refrigeration internal unit is fixed the faucet to the casing through the fastener, and this kind of connected mode is firm, prevents that the faucet from droing.

Description

Refrigeration inner machine and cold chain equipment

Technical Field

The utility model belongs to the technical field of the refrigeration, concretely relates to machine and cold chain equipment in refrigeration.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

The carriage of the refrigerator car is closed, has an independent refrigerating unit, and is used for fresh-keeping transportation of frozen foods, dairy products, vegetables, fruits, vaccines, medicines and other fresh objects. The core component of the refrigerator car for keeping the refrigerator car in a frozen state is a refrigerating unit. The refrigerating unit of the refrigerator car usually adopts an inner unit and outer unit split type design, a water outlet of the inner unit is usually arranged at the front end of the inner unit, and an air outlet is arranged at the rear end of the inner unit. Generally, a water receiving tray is formed on a shell of an indoor unit, and in order to enable defrosting water to be smoothly discharged from a water outlet, a water outlet nozzle is usually located at the lowest point of the water receiving tray, but the water outlet nozzle and the water receiving tray are fixed in a bonding mode mostly, so that the water outlet nozzle and the water receiving tray are insecure in fixation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the fixed insecure technical problem of the faucet of current refrigeration inner unit to a certain extent at least.

In order to achieve the above object, the utility model provides a refrigeration inner machine is applied to cold chain equipment, the refrigeration inner machine includes: a housing formed with an accommodation chamber; the water outlet nozzle is arranged on the shell and communicated with the accommodating cavity, and liquid in the accommodating cavity can flow out through the water outlet nozzle; a fastener by which the spout is connected to the housing.

According to the utility model discloses an interior machine of refrigeration is fixed the faucet to the casing through the fastener on, this kind of connected mode is firm, prevents that the faucet from droing.

In addition, according to the utility model discloses a refrigeration internal unit still can have following additional technical characterstic.

The utility model discloses an in some embodiments, the refrigeration inner machine is still including setting up hold the evaporimeter of intracavity, the casing includes the water collector, the water collector sets up the below of evaporimeter, the faucet is connected to on the water collector.

In some embodiments of the present invention, the water receiving tray is disposed obliquely, and the water outlet nozzle is disposed at the lowest point of the water receiving tray.

In some embodiments of the present invention, the water receiving tray includes a water outlet, and the water outlet nozzle penetrates through the water outlet.

In some embodiments of the present invention, the water outlet nozzle includes an outer tube disposed outside the accommodating cavity, the outer tube includes an outer flange, and the outer flange abuts against the housing.

In some embodiments of the present invention, the water outlet nozzle comprises an inner tube disposed inside the accommodating chamber, and the fastening member is a nut disposed outside the inner tube and threadedly coupled to the inner tube, and the nut abuts against the housing.

In some embodiments of the present invention, the water outlet nozzle comprises an outer tube disposed outside the accommodating cavity, the fastener is a nut, the nut is disposed outside the outer tube and in threaded connection with the outer tube, and the nut is in contact with the housing.

In some embodiments of the present invention, the water outlet nozzle includes an inner tube disposed inside the accommodating chamber, an inner flange is formed on an outer surface of the inner tube, and the inner flange abuts against the housing.

In some embodiments of the invention, the fastener is a flange, and the nozzle is connected to the housing through the flange and a bolt.

A second aspect of the present invention provides a cold chain apparatus, comprising:

according to the utility model discloses a refrigeration inner machine is provided in the first aspect;

the refrigeration inner machine and the refrigeration outer machine are connected in a refrigeration circulation loop through a plurality of pipelines;

the refrigerator comprises a box body, wherein the refrigerating inner machine is arranged in the box body and is used for refrigerating the box body.

A second aspect of the present invention provides a cold chain device, which has the following advantageous effects: the cold chain equipment comprises a refrigerating inner machine, the water outlet nozzle is fixed on a shell of the refrigerating inner machine through a fastener, and the fixing mode is firm and prevents the water outlet nozzle from falling off.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a front view of a refrigeration inner unit according to an embodiment of the present invention.

Fig. 2 is a partially enlarged view of a refrigeration indoor unit according to an embodiment of the present invention.

Fig. 3 is a perspective view of a refrigeration inner unit according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a cold chain apparatus provided by an embodiment of a second aspect of the present invention.

Wherein the reference numbers are as follows:

1: refrigerating an internal machine;

10: a housing; 11: a water pan;

20: a water outlet nozzle; 21: a water outlet hole; 22: an outer tube; 23: an inner tube; 221: a connecting pipe; 222: a flange end; 223: a terminal end; 224: an outer flange;

24: gasket

30: a nut;

40: an evaporator;

50: an expansion valve;

60: an inner fan;

2: a refrigerating outdoor unit;

210: a compressor; 211: an exhaust pipe: 212: an air return pipe;

220: an oil separator;

230: a condenser;

240: an outer fan;

3: a box body;

100: a cold chain device.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are 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" or "over" the other elements or features. Thus, the example term "in ...below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, fig. 1 is a front view of a refrigeration indoor unit 1 according to an embodiment of the present invention. An embodiment of a first aspect of the present invention provides a refrigeration inner machine 1, where the refrigeration inner machine 1 includes a casing 10, and the casing 10 is formed with a housing cavity; the water outlet nozzle 20 is arranged on the shell 10 and is communicated with the accommodating cavity, and liquid in the accommodating cavity can flow out through the water outlet nozzle 20; a fastener by which the spout 20 is connected to the housing 10. The fastener may be a nut 30 or a flange.

The utility model provides an interior machine 1 refrigerates, faucet 20 passes through the fastener is connected to on the casing 10, this kind of connected mode is firm, prevents that faucet 20 from droing.

The refrigeration indoor unit 1 further includes an evaporator 40, and the evaporator 40 evaporates a low-pressure low-temperature refrigerant liquid into a low-pressure low-temperature refrigerant vapor, and this process absorbs heat, thereby lowering the temperature of the environment in which the evaporator 40 is located. The surface of the evaporator 40 is easily frosted due to the temperature decrease of the evaporator 40, the frosting on the surface of the evaporator 40 is defrosted, and the defrosted water falls from the evaporator 40, falls on the water receiving tray 11, and flows out from the water outlet nozzle 20 of the water receiving tray 11 to the outside.

The shape of the housing 10 is not limited, and in one embodiment, the housing 10 has a square shape, and a receiving cavity is formed inside the housing. The housing chamber of the casing 10 is used for accommodating the evaporator 40, the expansion valve 50, the inner fan 60 and other cooling elements. A drip tray 11 is located at the bottom of the housing 10, the drip tray 11 for receiving defrosted water falling from the evaporator 40. An air outlet is formed on the housing 10, and the air outlet is disposed opposite to the evaporator 40, so that the cold air generated by the evaporator 40 flows out to the environment from the air outlet. In one embodiment, the water receiving tray 11 is disposed obliquely, and the water outlet 20 is disposed at the lowest position of the water receiving tray 11, so as to facilitate the defrosting water to be gathered at the water outlet 20. The water receiving tray 11 has a water outlet formed at the water outlet 20 for fixing the water outlet 20. In the absence of the spout 20, water in the drip tray 11 is discharged directly through the drain opening.

The nozzle 20 is tubular, and has a water outlet hole 21 formed therein, wherein the water outlet hole 21 extends along the length direction of the nozzle 20. The nozzle 20 extends through the water outlet of the housing 10, and the outlet hole 21 also extends through the water outlet. Referring to fig. 3, the nozzle 20 includes an outer tube 22 and an inner tube 23, the outer tube 21 is disposed outside the accommodating cavity, and the inner tube 23 is disposed inside the accommodating cavity. In one embodiment, the outer tube 22 and the inner tube 23 are a unitary structure. The outlet hole 21 includes an inlet and an outlet communicating with each other. The water inlet sets up the tip of keeping away from the casing at inner tube 23, holds the intracavity and flows in via the water inlet. The water outlet is arranged at the end part of the outer pipe 22 far away from the shell 10, and the defrosting water flows out of the water outlet hole 21.

Referring to fig. 2, fig. 2 is a partially enlarged view of the refrigeration indoor unit 1 according to an embodiment of the present invention. In the present embodiment, the fastener is a nut 30, and the nut 30 is disposed inside the accommodation chamber. Specifically, the outer tube 22 includes a connection tube 221 and an outer flange 224 provided at one end of the connection tube 221 near the casing 10. The outer flange 224 may have any shape, and the outer diameter thereof may be larger than the inner diameter of the drain port, so that the outer flange 224 is locked to the drain port, and the outer flange 224 abuts against the housing 10. In one embodiment, the outer flange 224 is annular, the outer diameter of the outer annular flange 224 is larger than the outlet, the inner diameter of the outer annular flange 224 is the outer diameter of the connection pipe 221, and the inner diameter of the connection pipe 221 is close to or consistent with the diameter of the outlet. In one embodiment, the outer flange 224 is a unitary structure with the connecting tube 221. The connection pipe 221 has a certain length to facilitate connection with other pipe. The connection tube 221 includes a flanged end 222 and a terminal end 223 disposed opposite the flanged end 222. An outer flange 224 is provided at the flange end 222 of the connecting tube 221. A serration structure is formed on a region of the connection pipe 221 near the end 223, and the serration structure enables the connection pipe 221 to be fixedly connected with other pipe. An external thread (not shown) is formed on the outer surface of the inner tube 23. The nut 30 is ring-shaped, and an internal thread is formed on an inner surface thereof, and the nut 30 is screwed onto an outer surface of the inner tube 23 so that the nut 30 is screwed with the inner tube 23, and the nut 30 can be pressed against the housing 10 from the inside, and the outer flange 224 can be pressed against the housing 10 from the outside of the housing 10. Thus, the nozzle 20 is fixed to the drain port of the housing 10. The outer diameter of the nut 30 is larger than the inner diameter of the outlet port so that the fixing function is achieved, and in this embodiment, the nut 30 is an M8 nut, that is, the inner diameter of the nut 30 is 8 mm. It will be appreciated that the external thread of the inner tube 23 is also 8 mm in external diameter to cooperate with the nut 30 to form a threaded connection. The gasket 24 is arranged between the nut 30 and the shell 10, and the gasket 24 can increase the contact area between the nut 30 and the shell 10, reduce the pressure between the nut 30 and the shell 10, prevent the nut 30 and the shell 10 from loosening and protect the nut 30 and the shell 10.

In another embodiment, the fastener is a nut 30, and the nut 30 is disposed outside of the receiving cavity. Specifically, the outer tube 22 includes a connection tube, and one end of the connection tube adjacent to the housing 10 is provided with an external thread, and the nut 30 is ring-shaped, and an internal thread is formed on an inner surface thereof, and the nut 30 is screwed to the connection tube by a screw connection. The connecting pipe has a certain length so as to be convenient for being connected with other pipe fittings. The connecting pipe comprises a threaded end and a tail end which is arranged back to back with the threaded end. The external screw thread sets up at the thread end, is formed with the sawtooth structure on the connecting pipe is close to terminal region, and the sawtooth structure makes the connecting pipe can with other pipe fitting fixed connection. One end of the inner tube 23 close to the shell 10 is provided with an inner flange, the shape of the inner flange is unlimited, and the outer diameter of the inner flange is larger than the inner diameter of the water outlet, so that the inner flange can be clamped and abutted with the shell 10. In one embodiment, the inner flange is annular, the outer diameter of the annular inner flange is larger than the inner diameter of the water outlet, the inner diameter of the annular inner flange is the outer diameter of the inner tube 23, and the inner diameter of the inner tube 23 is close to or consistent with the diameter of the water outlet. In one embodiment, the inner flange is a unitary structure with the inner tube 23. The nut 30 is screwed onto the outer tube 22 by means of the external thread on the outer tube 22 toward the housing 10, during which the inner flange is simultaneously pressed against the housing 10 so that it abuts against the housing 10. Finally, the spout 20 is secured to the drain opening of the housing 10 by means of an internal flange and a nut 30, in this embodiment the nut 30 is an M8 nut, i.e. the nut 30 has an internal diameter of 8 mm. It will be appreciated that the external thread of the outer tube 22 is also 8 mm in external diameter to cooperate with the nut 30 to form a threaded connection. And a washer 24 is provided between the nut 30 and the housing 10. The nut 30 is disposed outside the housing 10, so that the nut 30 can be easily unscrewed from the water outlet nozzle 20, and the water outlet nozzle 20 can be easily detached from the housing 10.

In yet another embodiment, the fastener is a flange, and the spout 20 is flanged to the housing 10. In one embodiment, the faucet 20 may include only an outer tube, which then communicates with the drain opening of the housing 10 via a flange and bolts.

Referring to fig. 3, fig. 3 is a perspective view of a refrigeration indoor unit according to an embodiment of the present invention. The indoor refrigerating machine 1 further comprises an expansion valve 50, the expansion valve 50 reduces the pressure of the high-pressure normal-temperature refrigerant liquid generated by the condenser 230 to obtain low-pressure low-temperature refrigerant liquid, the low-pressure low-temperature refrigerant liquid is evaporated into low-pressure low-temperature refrigerant steam in the evaporator 40, and the process absorbs heat to reduce the temperature of the environment where the indoor refrigerating machine 1 is located.

The utility model provides a beneficial effect of indoor unit 1 refrigerates is: firstly, the water outlet nozzle 20 is fixed to a water outlet of a water receiving disc 11 of the refrigeration inner machine 1 through a nut 30 or a flange and other fasteners, and the fixing mode is firm, so that the water outlet nozzle 20 is prevented from falling off; second, by providing threads on the outer tube of the spout 20, the nut 30 may be disposed on the exterior of the housing 10 to facilitate removal of the spout 20 from the housing 10.

Referring to fig. 4, fig. 4 is a schematic diagram of a cold chain apparatus 100 according to an embodiment of the second aspect of the present invention. The utility model discloses a second aspect provides a cold chain equipment 100, and cold chain equipment 100 includes: according to the utility model discloses a refrigeration inner machine 1 of the first aspect; the refrigeration outer machine 2, the refrigeration inner machine 1 and the refrigeration outer machine 2 are connected to a refrigeration circulation loop through a plurality of pipelines; the box 3, the refrigeration internal unit 1 sets up in the box 3.

The refrigerating outdoor unit 2 includes a compressor 210, a condenser 230, an external fan 240, and an oil separator 220. The refrigerating inner machine 1 and the refrigerating outer machine 2 form a refrigerating unit, and the refrigerating unit refrigerates a box body 3 where the refrigerating inner machine 1 is located. The cold chain apparatus 100 may be a refrigerator car, a freezer car, a refrigerated container, a freezer, or the like.

The working principle of the refrigerating unit is as follows: the condenser 230 condenses high-temperature and high-pressure refrigerant vapor generated by the compressor 210 into high-pressure and normal-temperature liquid, which is a process of releasing heat, the condenser 230 is arranged outside the box 3 of the cold chain equipment 100, so that heat is released to the outside, the condenser 230 is blown by the external fan 240 to dissipate heat, the external fan 240 and the condenser 230 are both arranged on an external machine frame, so that the external fan 240 and the condenser 230 are arranged opposite to each other, the high-pressure and normal-temperature refrigerant liquid generated by the condenser 230 enters the expansion valve 50 to be decompressed to obtain low-pressure and low-temperature refrigerant liquid, the low-pressure and low-temperature refrigerant liquid is evaporated into low-pressure and low-temperature refrigerant vapor in the evaporator 40 to absorb heat, so that the temperature of the box 3 where the evaporator 40 is located is lowered, the compressor 210 extracts the low-pressure and low-temperature refrigerant vapor in the evaporator 40, the low-pressure and low-temperature refrigerant vapor is conveyed to the compressor 210 through the air return pipe 212, the low-pressure and low-temperature and low-pressure refrigerant vapor is compressed into high-temperature and high-pressure refrigerant vapor in the compressor 210, the high-temperature and the high-pressure refrigerant vapor is conveyed to the compressor 211 through the air exhaust pipe 211, and lubricates the compressor 210.

The utility model discloses the cold chain equipment 100 that the second aspect provided, it has following beneficial effect: the cold chain equipment 100 comprises a refrigeration inner machine 1, the refrigeration inner machine 1 comprises a shell 10, and the water outlet nozzle 20 is fixed on the shell 10 of the refrigeration inner machine 1 through a nut 30 or a flange or other fastening piece, and the fixing mode is firm, so that the water outlet nozzle 20 is prevented from falling off.

The above describes in detail an optional implementation manner of the embodiments of the present invention with reference to the accompanying drawings, however, the embodiments of the present invention are not limited to the details in the above implementation manner, and in the technical concept scope of the embodiments of the present invention, it may be right to perform various simple modifications on the technical solution of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not separately describe various possible combinations.

Those skilled in the art will appreciate that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a computer-readable storage medium and includes several instructions for causing a single device (which may be a single chip, a chip, etc.) or a cooling mode control device (such as a processor) to perform all or part of the steps in the method according to the various embodiments of the present application. And the aforementioned computer-readable storage media comprise: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and other various media capable of storing program codes.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A refrigeration inner machine is applied to cold chain equipment, and is characterized in that the refrigeration inner machine comprises:

a housing formed with an accommodation chamber;

the water outlet nozzle is arranged on the shell and communicated with the accommodating cavity, and liquid in the accommodating cavity can flow out through the water outlet nozzle;

a fastener by which the spout is connected to the housing.

2. The refrigeration indoor unit according to claim 1, further comprising an evaporator disposed in the accommodation chamber, wherein the housing includes a water pan disposed below the evaporator, and wherein the water outlet nozzle is connected to the water pan.

3. The refrigeration inner machine according to claim 2, wherein the water pan is arranged obliquely, and the water outlet nozzle is arranged at the lowest point of the water pan.

4. The refrigeration indoor unit according to claim 2, wherein the drip tray includes a drain opening through which the water outlet nozzle extends.

5. The refrigeration indoor machine according to claim 4, wherein the water outlet nozzle includes an outer tube disposed outside the receiving chamber, the outer tube including an outer flange, and the outer flange abuts the casing.

6. The refrigeration internal machine according to claim 5, wherein the water outlet nozzle comprises an inner tube disposed inside the accommodating cavity, the fastening member is a nut, the nut is disposed outside the inner tube and is in threaded connection with the inner tube, and the nut abuts against the casing.

7. The indoor unit as claimed in claim 4, wherein the water outlet nozzle comprises an outer tube disposed outside the accommodating cavity, the fastener is a nut disposed outside the outer tube and in threaded connection with the outer tube, and the nut abuts against the casing.

8. The refrigeration internal machine according to claim 7, wherein the water outlet nozzle comprises an inner tube arranged inside the accommodating cavity, an inner flange is formed on the outer surface of the inner tube, and the inner flange abuts against the shell.

9. The refrigeration indoor unit according to claim 1, wherein the fastener is a flange, and the water outlet nozzle is connected to the casing through the flange and a bolt.

10. A cold chain apparatus, characterized in that it comprises:

the refrigeration indoor unit according to any one of claims 1 to 9;

the refrigeration inner machine and the refrigeration outer machine are connected to a refrigeration circulation loop through a plurality of pipelines;

the refrigerator comprises a box body, wherein the refrigerating inner machine is arranged in the box body and is used for refrigerating the box body.

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