CN216268585U

CN216268585U - Refrigeration and heating condenser assembly and air conditioning system

Info

Publication number: CN216268585U
Application number: CN202123145953.1U
Authority: CN
Inventors: 肖黎明; 普海斌
Original assignee: Chongqing Dike Automobile Co ltd
Current assignee: Chongqing Dike Automobile Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-12
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a refrigeration and heating condenser assembly and an air conditioning system, wherein the condenser assembly comprises a shell, an installation cavity is arranged in the shell, and a condenser body, an air collecting cover, a cooling fan, an oil-gas separator and a drying tank are arranged in the installation cavity; the condenser body, the air collecting cover and the cooling fan are sequentially stacked from bottom to top, a refrigerant outlet of the oil-gas separator is connected with a refrigerant inlet of the condenser body through a first pipeline, and a refrigerant outlet of the condenser body is connected with a refrigerant inlet of the drying tank through a second pipeline; the first pipeline is provided with a first electromagnetic valve for opening and closing the first pipeline, the second pipeline is provided with a one-way valve, the refrigerant outlet of the oil-gas separator is also connected with a third pipeline, and the third pipeline is provided with a second electromagnetic valve for opening and closing the third pipeline. The utility model can control the condenser to switch the refrigerating and heating working states through the first electromagnetic valve and the second electromagnetic valve, and has good applicability.

Description

Refrigeration and heating condenser assembly and air conditioning system

Technical Field

The utility model relates to the technical field of refrigerated trucks, in particular to a refrigeration and heating condenser assembly and an air conditioning system.

Background

The refrigerator car is a closed van type special transport vehicle which is provided with a refrigeration air-conditioning system and a heat insulation carriage and is used for transporting frozen, refrigerated or fresh goods, and is commonly used for transporting frozen foods, dairy products, fruits, vegetables, vaccines and medicines and the like.

The refrigerating air conditioning system of the refrigerator car reduces the temperature in the carriage through a refrigerating unit, and the refrigerating unit mainly comprises three parts, namely a compressor, a condenser and an evaporator, and connecting pipelines among the three parts. The compressor compresses low-temperature low-pressure refrigerant gas into high-temperature high-pressure gas, the high-temperature high-pressure gas is conveyed to the condenser, the condenser releases heat to the air, the high-temperature high-pressure refrigerant is condensed into high-pressure medium-temperature liquid, the high-pressure medium-temperature liquid flows to the expansion valve, the expansion valve reduces the pressure of the liquid refrigerant, the low-pressure low-temperature gas-liquid mixture is changed into low-pressure low-temperature gas-liquid mixture, the low-pressure low-temperature gas-liquid mixture enters the evaporator, the low-pressure low-temperature gas-liquid mixture refrigerant is evaporated in the evaporator, heat in the air is absorbed, and therefore the air temperature is reduced.

The condenser is usually installed outside the compartment of the refrigerator car, and the heat of the condenser body is blown out by a fan installed therein. However, the condenser of the existing refrigerating unit of the refrigerator car usually has only a refrigerating function, does not have a heating function, and has poor applicability.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a refrigerating and heating condenser assembly which can solve the problems that a condenser of a refrigerating unit of a refrigerator car in the prior art usually has only a refrigerating function, does not have a heating function and is poor in applicability.

In order to achieve the purpose, the utility model adopts the following technical scheme:

in a first aspect, the utility model provides a refrigeration and heating condenser assembly, which comprises a shell, wherein a mounting cavity is formed in the shell, and a condenser body, an air collecting cover, a cooling fan, an oil-gas separator and a drying tank are mounted in the mounting cavity;

the condenser body, the air collecting cover and the cooling fan are sequentially stacked from bottom to top, a refrigerant outlet of the oil-gas separator is connected with a refrigerant inlet of the condenser body through a first pipeline, and a refrigerant outlet of the condenser body is connected with a refrigerant inlet of the drying tank through a second pipeline;

the oil-gas separator comprises a first pipeline, a second pipeline, a third pipeline and a third pipeline, wherein the first pipeline is provided with a first electromagnetic valve for opening and closing the first pipeline, the second pipeline is provided with a one-way valve, a refrigerant outlet of the oil-gas separator is also connected with the third pipeline, and the third pipeline is provided with a second electromagnetic valve for opening and closing the third pipeline.

Preferably, the first electromagnetic valve is a normally open electromagnetic valve, and the second electromagnetic valve is a normally closed electromagnetic valve.

Preferably, the housing includes a bottom shell and an upper cover covering the bottom shell, and the bottom shell and the upper cover are connected with each other through bolts to define the mounting cavity.

Preferably, a plurality of first air inlet holes are formed in the front side of the upper cover;

the bottom shell comprises a bottom plate and two side plates arranged on the left side and the right side of the bottom plate, a plurality of second air inlet holes are formed in the two side plates, at least one air deflector is further mounted on each of the two side plates, an included angle between a windward side of each air deflector and the corresponding side plate of the bottom shell is smaller than 90 degrees, and each air deflector is used for guiding external air flow into the corresponding second air inlet hole.

Preferably, an included angle between the windward side of the air deflector and the side plate of the bottom shell is 45 °.

Preferably, the air deflector is detachably mounted to the side plate by a bolt.

Preferably, the side plates on the left side and the right side of the bottom shell are respectively provided with two air deflectors at intervals, and the air deflectors on the left side and the right side are symmetrically arranged.

Preferably, the front end of the bottom plate is provided with a routing through hole for allowing the pipeline and the circuit to pass through.

In a second aspect, the present invention provides a refrigerated vehicle air conditioning system comprising a compressor, an evaporator and an expansion valve, further comprising a cooling and heating condenser assembly as described in the first aspect above;

the refrigerant outlet of the compressor is connected with the refrigerant inlet of the oil-gas separator through an air conditioner pipeline, the refrigerant inlet of the expansion valve is connected with the refrigerant outlet of the drying tank, the refrigerant outlet of the expansion valve is connected with the refrigerant inlet of the evaporator through an air conditioner pipeline, and the refrigerant outlet of the evaporator is respectively connected with the refrigerant inlet of the compressor and the refrigerant outlet of the third pipeline through air conditioner pipelines.

The utility model has the beneficial effects that:

according to the refrigeration and heating condenser assembly, the first electromagnetic valve is arranged on the first pipeline which is connected with the oil-gas separator and the refrigerant inlet of the condenser body, the one-way valve is arranged on the second pipeline which is connected with the refrigerant outlet of the condenser body and the drying tank, the third pipeline is connected with the refrigerant outlet of the oil-gas separator, and the second electromagnetic valve is arranged on the third pipeline, so that the on-off of the first pipeline and the third pipeline is controlled through the first electromagnetic valve and the second electromagnetic valve, the refrigeration and heating working states of the condenser can be switched, the condenser not only has a refrigeration function to provide cold air for a refrigerated vehicle, but also has a heating function to provide hot air for the refrigerated vehicle, and the applicability is better.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic perspective view of a refrigeration and heating condenser assembly in accordance with a preferred embodiment of the present disclosure;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a schematic top view of the structure of FIG. 1 with the cover removed;

FIG. 4 is a schematic perspective view of FIG. 1 with the cover removed;

FIG. 5 is a schematic perspective view of the bottom case of FIG. 2;

fig. 6 is a schematic structural diagram of a refrigerator car air conditioning system in a preferred embodiment of the present disclosure.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second", etc. 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. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-5, the utility model provides a refrigeration and heating condenser assembly, which comprises a shell 1, wherein an installation cavity is arranged in the shell 1, and a condenser body 2, an air collecting cover 3, a cooling fan 4, an oil-gas separator 5 and a drying tank 6 are arranged in the installation cavity; the condenser body 2, the air collecting cover 3 and the cooling fan 4 are sequentially overlapped from bottom to top, a refrigerant outlet of the oil-gas separator 5 is connected with a refrigerant inlet of the condenser body 2 through a first pipeline 7, and a refrigerant outlet of the condenser body 2 is connected with a refrigerant inlet of the drying tank 6 through a second pipeline 8; the first pipeline 7 is provided with a first electromagnetic valve 9 for opening and closing the first pipeline 7, the second pipeline 8 is provided with a one-way valve 10, the refrigerant outlet of the oil-gas separator 5 is also connected with a third pipeline 11, and the third pipeline 11 is provided with a second electromagnetic valve 12 for opening and closing the third pipeline 11.

In this embodiment, the cooling and heating condenser assembly is provided with a first solenoid valve 9 on a first pipeline 7 connecting the oil-gas separator 5 and the refrigerant inlet of the condenser body 2, a check valve 10 on a second pipeline 8 connecting the refrigerant outlet of the condenser body 2 and the drying tank 6, a third pipeline 11 on the refrigerant outlet of the oil-gas separator 5, and a second solenoid valve 12 on the third pipeline 11. When refrigeration is needed, the first pipeline 7 is controlled to be opened by controlling the power-on state of the first electromagnetic valve 9, and the third pipeline 11 is controlled to be closed by controlling the power-on state of the second electromagnetic valve 12, so that the high-temperature and high-pressure refrigerant subjected to oil-gas separation by the oil-gas separator 5 is output to be refrigerated after passing through the condenser and the drying tank 6; when heating is needed, the first pipeline 7 is controlled to be closed by controlling the power-on state of the first electromagnetic valve 9, and the third pipeline 11 is controlled to be opened by controlling the power-on state of the second electromagnetic valve 12, so that the high-temperature and high-pressure refrigerant subjected to oil-gas separation through the oil-gas separator 5 is directly output through the third pipeline 11 to be heated. Therefore, this embodiment can refrigerate and heat the switching of operating condition through the break-make of first pipeline 7 of first solenoid valve 9 and second solenoid valve 12 control and third pipeline 11 to the condenser for the condenser not only possesses refrigeration function and realizes cold-stored fresh-keeping for the refrigerator car provides air conditioning, still possesses the function of heating and provides steam for the refrigerator car, and the suitability is better.

In one embodiment, the first solenoid valve 9 is a normally open solenoid valve and the second solenoid valve 12 is a normally closed solenoid valve. Because the common working state of the refrigerator car is a refrigeration state, the first electromagnetic valve 9 and the second electromagnetic valve 12 are not powered during refrigeration, so that the first pipeline 7 is opened, and the third pipeline 11 is closed to realize refrigeration cycle; when heating, the first electromagnetic valve 9 and the second electromagnetic valve 12 are both electrified, so that the first pipeline 7 is closed, and the third pipeline 11 is opened to realize heating circulation. Therefore, the control logic is simpler, and the condenser assembly is more energy-saving in a normal state (a refrigeration working state).

In one embodiment, the housing 1 includes a bottom case 101 and an upper cover 102 covering the bottom case 101, and the bottom case 101 and the upper cover 102 are connected to each other by bolts to define a mounting cavity. In this way, as long as the bolts are removed, the upper cover 102 can be opened, and then the components and the like in the installation cavity can be maintained, so that the convenience of maintaining the condenser assembly is improved.

In one embodiment, a plurality of first air inlet holes 1021 are formed in the front side of the upper cover 102; the bottom case 101 includes a bottom plate 1011 and two side plates 1012 arranged at the left and right sides of the bottom plate 1011, a plurality of second air inlet holes 1013 are formed on the two side plates 1012, at least one air guiding plate 1014 is further respectively installed on the two side plates 1012, an included angle α between a windward side of the air guiding plate 1014 and the side plates 1012 of the bottom case 101 is smaller than 90 degrees, and the air guiding plate 1014 is used for guiding external air flow into the second air inlet holes 1013. In the refrigeration process, the cooling fan 4 is started, air can be fed through the first air inlet hole 1021 and can also be fed through the second air inlet hole 1013, meanwhile, under the guiding effect of the air deflector 1014 on air flow, the feeding efficiency of the second air inlet hole 1013 is improved, after the air entering the installation cavity from the first air inlet hole 1021 and the second air inlet hole 1013 exchanges heat with the condenser body 2, the air is collected by the air collection cover 3 and then is discharged out of the condenser through the cooling fan 4 under the suction force of the cooling fan 4, so that the heat of the condenser is dissipated, the air inlet amount of the condenser in the driving process of the refrigerated vehicle is effectively increased, more air flow in the driving process of the vehicle can enter the condenser to exchange heat with the condenser body 2, the heat dissipation performance of the condenser is improved, and the air conditioning refrigeration effect is further improved.

In one embodiment, the angle α between the windward side of the air deflector 1014 and the side plate 1012 of the bottom case 101 is 45 °. A large number of experiments prove that when the included angle between the windward side of the air deflector 1014 and the side plate 1012 of the bottom shell 101 is 45 degrees, the flow guiding effect of the air deflector 1014 is optimal, and further the air quantity entering the condenser assembly from the second air inlet 1013 is maximum, so that the heat dissipation performance of the condenser assembly can be better improved, and the air-conditioning refrigeration effect is better improved.

In one embodiment, the air deflector 1014 is removably mounted to the side plate 1012 by bolts. The wind deflector 1014 can be conveniently disassembled and replaced.

In one embodiment, two air deflectors 1014 are respectively disposed on the left and right side plates 1012 of the bottom case 101 at intervals, and the left and right air deflectors 1014 are symmetrically disposed. The left side plate 1012 and the right side plate 1012 are respectively provided with two air deflectors 1014 at intervals to further improve the air intake, and the air deflectors 1014 on the two sides are symmetrically arranged to be beneficial to the balance of the air intake on the left side and the right side of the condenser assembly, thereby ensuring the uniform heat dissipation of the condenser assembly.

In one embodiment, the front end of the base plate 1011 defines a routing aperture 1015 for allowing pipes and wires to pass therethrough. The wiring through hole 1015 is arranged, so that the pipeline and the circuit of the condenser assembly can penetrate out from the wiring through hole 1015, the connection between the condenser assembly and other parts of the air conditioning system is facilitated, and the convenience in installation and maintenance of the condenser assembly is improved.

As shown in fig. 6, the present invention further provides a refrigerator car air conditioning system, which includes a compressor 13, an oil-gas separator 5, a condenser body 2, a one-way valve 10, a drying tank 6, an expansion valve 14, an evaporator 15, a first solenoid valve 9 and a second solenoid valve 12, wherein a refrigerant outlet of the compressor 13 is connected with a refrigerant inlet of the oil-gas separator 5 through an air conditioning pipeline, a refrigerant outlet of the oil-gas separator 5 is connected with a refrigerant inlet of the condenser body 2 through a first pipeline 7, a refrigerant outlet of the oil-gas separator 5 is further connected with a third pipeline 11, a refrigerant outlet of the condenser body 2 is connected with a refrigerant inlet of the drying tank 6 through a second pipeline 8, a refrigerant outlet of the drying tank 6 is connected with a refrigerant inlet and a refrigerant outlet of the expansion valve 14, a refrigerant outlet of the expansion valve 14 is connected with a refrigerant inlet of the evaporator 15 through an air conditioning pipeline, and a refrigerant outlet of the evaporator 15 is respectively connected with a refrigerant inlet of the compressor 13 and a refrigerant inlet of the third pipeline 11 through an air conditioning pipeline Is connected to the refrigerant outlet, a first solenoid valve 9 is installed on the first pipeline 7, a check valve 10 is installed on the second pipeline 8, and a second solenoid valve 12 is installed on the third pipeline 11. The first solenoid valve 9 is a normally open solenoid valve, and the second solenoid valve 12 is a normally closed solenoid valve.

The working principle of the air conditioning system of the refrigerator car is as follows:

during refrigeration, the first electromagnetic valve 9 and the second electromagnetic valve 12 do not work, refrigerant is compressed by the compressor 13, then is output from a refrigerant outlet of the compressor 13, sequentially passes through the oil-gas separator 5, the condenser body 2, the one-way valve 10, the drying tank 6, the expansion valve 14 and the evaporator 15, and then returns to the compressor 13 from a refrigerant inlet of the compressor 13 for circulation; when defrosting is needed, the second electromagnetic valve 12 is powered on and opened, and the temperature of the air outlet of the air conditioner is adjusted;

during heating, the first electromagnetic valve 9 is powered off, the second electromagnetic valve 12 is powered on and opened, refrigerant is compressed by the compressor 13, then is output from a refrigerant outlet of the compressor 13, sequentially passes through the oil-gas separator 5 and the evaporator 15, and then returns to the compressor 13 from a refrigerant inlet of the compressor 13 for circulation.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A refrigeration and heating condenser assembly is characterized by comprising a shell, wherein an installation cavity is formed in the shell, and a condenser body, a wind collecting cover, a cooling fan, an oil-gas separator and a drying tank are installed in the installation cavity;

2. The refrigeration heating condenser assembly of claim 1 wherein the first solenoid valve is a normally open solenoid valve and the second solenoid valve is a normally closed solenoid valve.

3. A refrigeration and heating condenser assembly as recited in claim 1 or 2 wherein said housing includes a base and an upper cover covering said base, said base and said upper cover being connected to each other by bolts to define said mounting cavity.

4. The refrigeration and heating condenser assembly of claim 3 wherein the front side of the top cover is provided with a plurality of first air inlet openings;

5. The refrigeration and heating condenser assembly of claim 4 wherein the angle between the windward side of the air deflector and the side plate of the bottom shell is 45 °.

6. The refrigeration and heating condenser assembly of claim 4 wherein the air deflection plates are removably mounted to the side plates by bolts.

7. A refrigerating and heating condenser assembly as claimed in any one of claims 4-6, wherein the side plates of the bottom case are spaced apart from each other by two air deflectors, and the air deflectors are arranged symmetrically.

8. A refrigeration and heating condenser assembly as set forth in claim 7 wherein said base plate has a front end with a wire perforation for passing tubing and wiring therethrough.

9. A refrigerated vehicle air conditioning system comprising a compressor, an evaporator and an expansion valve, further comprising a refrigeration and heating condenser assembly as claimed in any one of claims 1 to 8;