CN218536669U

CN218536669U - Thin lightweight air conditioning unit

Info

Publication number: CN218536669U
Application number: CN202222888761.8U
Authority: CN
Inventors: 徐峻; 李长胜; 兰芸; 韩寒
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-28
Anticipated expiration: 2032-10-31

Abstract

The utility model provides a pair of slim lightweight air conditioning unit, including the refrigeration cycle return circuit that compressor, condenser, electronic expansion valve and the evaporimeter that connects gradually formed. The condenser is provided with a condensing fan for exchanging heat to the outdoor, and the evaporator is provided with a blower for blowing air to the indoor. Wherein, the inside of condenser adopts the microchannel heat exchanger, and the compressor is inverter compressor. The utility model provides a slim lightweight air conditioning unit is through the internal design microchannel heat exchanger with the condenser for its space size is compacter, more saves size space, thereby can further realize lightweight design on the basis that satisfies vehicle refrigeration heating demand.

Description

Thin lightweight air conditioning unit

Technical Field

The utility model belongs to the technical field of EMUs air conditioning unit, in particular to slim lightweight air conditioning unit.

Background

The air conditioning unit of the motor train unit bears the important task of maintaining the comfort of the environment in the train, realizes the functions of refrigeration, heating, ventilation, air cleaning and the like, and greatly influences the riding experience and comfort of passengers. The existing motor train unit adopts a unit type air conditioning unit and is arranged in a roof space, however, part of rail vehicles are limited by vehicle space and tunnel limitation, and the requirement of vehicle refrigerating capacity is met, so that the thinner air conditioning unit is expected to be used.

In the process of railway high speed, the light weight design of the motor train unit has positive significance for the aspects of train drag reduction, improvement of running stability, energy conservation, consumption reduction, environmental protection, reduction of maintenance cost of a route and the like. The top layer requirement of the light weight of the whole vehicle is decomposed to an air conditioning system, the air conditioning unit as the key equipment of the air conditioning system occupies a larger weight proportion, and the light weight potential needs to be excavated.

Therefore, it is an urgent problem to be solved by those skilled in the art to provide a thin and lightweight air conditioning unit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slim lightweight air conditioning unit takes lightweight design on the basis that satisfies vehicle refrigeration heating demand.

In order to solve the technical problem, the utility model provides a thin lightweight air conditioning unit, which comprises a refrigeration cycle loop formed by a compressor, a condenser, an electronic expansion valve and an evaporator which are connected in sequence, wherein the condenser is provided with a condensing fan for exchanging heat to the outside, and the evaporator is provided with a blower for supplying air to the inside;

wherein, the inside of condenser adopts the microchannel heat exchanger, the compressor is the inverter compressor.

Optionally, in the thin and light air conditioning unit, the microchannel heat exchanger of the condenser is a microchannel heat exchanger made of an all-aluminum material.

Optionally, in the thin and light air conditioning unit, an anticorrosive coating is disposed on a heat exchange surface of the microchannel heat exchanger.

Optionally, in the thin and light air conditioning unit, the compressor, the condenser, the electronic expansion valve, the evaporator, the condensing fan and the blower are integrated into an integrated structure.

Optionally, in above-mentioned slim lightweight air conditioning unit, still include the casing and vertically set up in baffle in the casing, the baffle will two parts about the casing internal partitioning becomes, one side of baffle is provided with the compressor the condenser with the fan, the opposite side of baffle is provided with electronic expansion valve the evaporimeter with the forced draught blower.

Optionally, in the thin and light air conditioning unit, the number of the condenser, the number of the condensing fan, the number of the electronic expansion valve, and the number of the blower are all plural.

In the thin and light air conditioning unit, the compressor is disposed in the middle of the condenser, and the blower is disposed in the middle of the evaporator.

Optionally, in the thin and light air conditioning unit, the compressor is arranged side by side with the condensing fan, and the blower is arranged side by side with the electronic expansion valve.

Optionally, in the thin and light air conditioning unit, at least one of the air path electromagnetic valve, the liquid path electromagnetic valve, the anti-freezing switch, the filtering pressure reducing valve and the flow control valve is omitted.

The utility model provides a slim lightweight air conditioning unit, its beneficial effect lies in:

through the interior design of with the condenser into microchannel heat exchanger for its spatial dimension is compacter, more saves size space, thereby can further realize the lightweight design on the basis that satisfies vehicle refrigeration heating demand.

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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a thin and lightweight air conditioning unit according to an embodiment of the present invention.

In the upper diagram:

1-a compressor; 2-a condenser; 3-a condensing fan; 4-an electronic expansion valve; 5-an evaporator; 6-blower.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is more than two, and if there is a description that the first and the second are only used for distinguishing technical features, it is not understood that the relative importance is indicated or implied or the number of the indicated technical features is implicitly indicated or the precedence of the indicated technical features is implicitly indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

The core of the utility model is to provide a slim lightweight air conditioning unit, on the basis that satisfies vehicle refrigeration heating demand, take the lightweight design.

In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Specifically, please refer to fig. 1, wherein fig. 1 is a schematic structural diagram of a thin and light air conditioning unit according to an embodiment of the present invention.

The utility model provides a pair of slim lightweight air conditioning unit, including the refrigeration cycle return circuit that compressor 1, condenser 2, electronic expansion valve 4 and the 5 formation of evaporimeter that connect gradually. The condenser 2 is provided with a condensing fan 3 for exchanging heat to the outside, and the evaporator 5 is provided with a blower 6 for blowing air to the inside.

Wherein, the inside of condenser 2 adopts the microchannel heat exchanger, and compressor 1 is inverter compressor 1.

The working principle is as follows: the compressor 1 is used for compressing refrigerant, the condenser 2 is used for cooling the high-temperature high-pressure gas obtained by compression of the compressor 1, the condensing fan 3 is used for dissipating heat of the condenser 2, the evaporator 5 is used for absorbing heat, and the blower 6 is used for dissipating heat of the evaporator 5.

The variable frequency compressor 1 compresses a refrigerant into refrigerant steam with high temperature and high pressure, the refrigerant steam enters a refrigerant channel of the air-cooled condenser 2, the refrigerant is subjected to forced heat exchange and cooling with outside air through the condensing fan 3, the refrigerant is condensed into liquid with normal temperature and high pressure, the liquid enters the electronic expansion valve 4 for throttling and pressure reduction, the liquid is changed into gas-liquid mixed refrigerant with low temperature and low pressure, the gas-liquid mixed refrigerant enters the evaporator 5, the air heat flowing through the evaporator 5 is absorbed, the vapor is evaporated into steam with low temperature and low pressure, the steam is sucked and compressed by the compressor 1, a closed refrigeration cycle is completed, the compressor 1 continuously works, and the continuous refrigeration effect is achieved. The blower 6 sends the cold air cooled and dehumidified by the evaporator 5 into the air channel to the passenger room to bear heat and humidity load, so as to create a healthy and comfortable passenger room environment.

The utility model provides a slim lightweight air conditioning unit is through the internal design with condenser 2 into the microchannel heat exchanger for its space dimension is compacter, more saves size space, thereby can further realize lightweight design on the basis that satisfies vehicle refrigeration heating demand.

In one embodiment, the micro-channel heat exchanger of the condenser 2 is an all aluminum micro-channel heat exchanger. Furthermore, the heat exchange surface of the micro-channel heat exchanger is provided with an anticorrosive coating. Compared with the traditional copper pipe aluminum fin, the micro-channel heat exchanger with all aluminum and the anticorrosive coating is adopted in the condenser 2 of the air conditioning unit, the weight is reduced by about 60%, the refrigerant charge is reduced by 40%, the wind side resistance is reduced by 45%, the weight reduction and noise reduction are facilitated, and the energy efficiency of the whole machine is improved. Meanwhile, the space size of the micro-channel heat exchanger is more compact, the thickness of the micro-channel heat exchanger is reduced by about 70% compared with that of a traditional 7mm copper pipe aluminum fin heat exchanger, and the size space is saved.

In one embodiment, the compressor 1, the condenser 2, the electronic expansion valve 4, the evaporator 5, the condensing fan 3, and the blower 6 are integrated into an integrated structure.

Specifically, the utility model discloses still include casing and the vertical baffle that sets up in the casing, two parts about the baffle becomes the casing internal partitioning, and one side of baffle is provided with compressor 1, condenser 2 and fan, and the opposite side of baffle is provided with electronic expansion valve 4, evaporimeter 5 and forced draught blower 6. The partition board is used for bearing various parts of the air conditioning unit. The compressor 1, the condenser 2, the condensing fan 3, the evaporator 5, the blower 6 and the electronic expansion valve 4 are all assembled on the partition plate, and the assembly production efficiency is improved.

The number of the condenser 2, the condensing fan 3, the electronic expansion valve 4, and the blower 6 is plural. The number of the condensers 2 and the number of the condensing fans 3 are in one-to-one correspondence. The number of the electronic expansion valves 4 and the number of the blowers 6 are in one-to-one correspondence.

In order to make space efficient, the compressor 1 is provided in the middle of the condenser 2, and the blower 6 is provided in the middle of the evaporator 5. The compressor 1 is arranged side by side with the condensing fan 3, and the blower 6 is arranged side by side with the electronic expansion valve 4.

In order to optimize the functions of the air conditioning unit, functional redundancies of an air path electromagnetic valve, a liquid path electromagnetic valve, an anti-freezing switch and the like are eliminated, the design of a refrigeration pipeline is optimized, a filtering pressure reducing valve, a flow control valve and the like are eliminated, meanwhile, the air conditioning unit adopts an integrated control mode, the use of an electrical connector is reduced, the same refrigeration capacity is provided, the weight of the whole air conditioning unit is reduced by 24% compared with that of a traditional unit, and the height space is saved by 22%.

The utility model provides a beneficial effect that technical scheme brought lies in:

the thin light-weight unit is developed, on the basis of meeting the refrigerating and heating requirements of vehicles, the air conditioning unit is guaranteed to be installed on the roof of the vehicle and capable of meeting the line limit, the height space in the vehicle is improved as much as possible, and meanwhile light-weight design measures are taken to construct a light-weight, efficient and energy-saving air conditioning system.

Through lightweight part lectotype, select for use the lighter inverter compressor of weight 1, parts such as condensation fan 3, evaporation fan, heat exchanger subtract effectively promote the air conditioner performance when heavy falling makes an uproar. The structure of the interior of the air conditioning unit is optimized, the path of a refrigeration pipeline is optimized, and redundant pipelines and parts are eliminated. The size of the air conditioning unit is optimized by selecting parts such as a heat exchanger with a more compact structure, optimizing the space arrangement of the unit, designing a shell and the like, so that the height of the unit is further reduced.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. A thin and light air conditioning unit is characterized by comprising a refrigeration cycle loop formed by a compressor, a condenser, an electronic expansion valve and an evaporator which are sequentially connected, wherein a condensing fan for exchanging heat outdoors is arranged on the condenser, and a blower for blowing air indoors is arranged on the evaporator;

2. The thin and lightweight air conditioning unit as set forth in claim 1, wherein said micro-channel heat exchanger of said condenser is an all aluminum micro-channel heat exchanger.

3. The thin and lightweight air conditioning unit of claim 2 wherein the heat exchange surfaces of the microchannel heat exchanger are provided with an anti-corrosive coating.

4. The thin and lightweight air conditioning unit according to claim 1, wherein the compressor, the condenser, the electronic expansion valve, the evaporator, the condensing fan, and the blower are an integrated structure.

5. The thin and light air conditioning unit according to claim 4, further comprising a cabinet and a partition vertically disposed in the cabinet, wherein the partition divides the interior of the cabinet into a left part and a right part, the compressor, the condenser and the fan are disposed on one side of the partition, and the electronic expansion valve, the evaporator and the blower are disposed on the other side of the partition.

6. The thin and lightweight air conditioning unit according to claim 5, wherein the number of the condenser, the condensing fan, the electronic expansion valve, and the blower is plural.

7. The thin and light air conditioning unit according to claim 6, wherein the compressor is provided in the middle of the condenser, and the blower is provided in the middle of the evaporator.

8. The thin and lightweight air conditioning unit according to claim 6, wherein the compressor is arranged side by side with the condensing fan, and the blower is arranged side by side with the electronic expansion valve.

9. The thin and lightweight air conditioning unit according to claim 1, wherein at least one of an air path solenoid valve, a liquid path solenoid valve, an anti-freeze switch, a filter pressure reducing valve, and a flow control valve is eliminated.