CN114537458A - Vehicle air conditioning unit with higher energy efficiency - Google Patents
Vehicle air conditioning unit with higher energy efficiency Download PDFInfo
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- CN114537458A CN114537458A CN202210137375.7A CN202210137375A CN114537458A CN 114537458 A CN114537458 A CN 114537458A CN 202210137375 A CN202210137375 A CN 202210137375A CN 114537458 A CN114537458 A CN 114537458A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The invention discloses a vehicle air conditioning unit with higher energy efficiency, which comprises a shell, an energy storage heat exchange module and an intelligent air conditioning module, wherein the shell comprises a waste gas discharge cavity for discharging waste gas in a vehicle, a fresh air cavity for introducing fresh air into the vehicle, a mixing cavity for mixing the fresh air and return air, an air treatment cavity communicated with the mixing cavity, an air supply cavity communicated with the air treatment cavity and a condensation air cavity; wherein, energy storage heat transfer module is located between exhaust emission chamber and the new trend chamber on vertical, the waste gas that is located the exhaust emission chamber strikes energy storage heat transfer module with the new trend that is located the new trend chamber respectively under the negative pressure effect for the difference in temperature between exhaust emission intracavity waste gas and the new trend intracavity new trend reduces, air conditioning unit's new trend load has effectively been reduced, make the vehicle air conditioning unit that this application provided have higher energy efficiency performance, and then practiced thrift the electric energy, reduced the running cost when carbon discharges.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to a vehicle air conditioning unit with higher energy efficiency.
Background
As one of the important structures of the existing urban rail transit vehicle, the air conditioning unit is also a key structure for determining the riding comfort of the vehicle, and certainly, people pay attention to the comfort and the energy efficiency performance of the air conditioning unit.
In particular, in the current state of the art, the methods for improving the energy efficiency of a vehicle air conditioning unit are generally: air doors for adjusting air quantity are arranged at a fresh air inlet, a waste air outlet and a return air inlet of the air conditioning unit, the opening degree of the air doors is automatically adjusted according to the load of a vehicle, and then the air inlet and outlet quantity are controlled, so that the purposes of saving energy and improving energy efficiency are achieved while the comfort level is met. In addition, some technologies also adopt schemes of frequency conversion, heat pumps and the like to further save the energy consumption of the air conditioning unit.
However, the applicant believes that the energy efficiency improvement of the air conditioning unit in the prior art still has a large improvement space, and based on the fact that the inventor concentrates on studying experience and accumulated theoretical knowledge level in the field for many years, the application hopes to search a new technical direction to further improve the energy efficiency of the vehicle air conditioning unit.
Disclosure of Invention
In view of this, the present invention provides a vehicle air conditioning unit with higher energy efficiency, which effectively reduces the fresh air load of the air conditioning unit, so that the vehicle air conditioning unit provided by the present application has higher energy efficiency performance, thereby saving electric energy, reducing carbon emission, and reducing the operation cost.
The technical scheme adopted by the invention is as follows:
a vehicle air conditioning unit with higher energy efficiency comprises a shell, an energy storage heat exchange module and an intelligent air conditioning module, wherein the shell comprises a waste gas discharge cavity for discharging waste gas in a vehicle, a fresh air cavity for introducing fresh air into the vehicle, a mixing cavity for mixing the fresh air and return air, a gas treatment cavity communicated with the mixing cavity, an air supply cavity communicated with the gas treatment cavity and a condensed air cavity; wherein, energy storage heat exchange module is located on vertical exhaust emission chamber with between the new trend chamber, the waste gas that is located the exhaust emission chamber and the new trend that is located the new trend chamber strike respectively under the negative pressure energy storage heat exchange module for the difference in temperature between exhaust emission intracavity waste gas and the new trend intracavity new trend reduces new trend load.
Preferably, the energy storage heat exchange module is made of a phase-change material and comprises a first transverse heat exchange surface and/or a first flow guide surface which are located on one side of the waste gas discharge cavity and are in collision contact with at least part of waste gas in the waste gas discharge cavity, and a second transverse heat exchange surface and/or a second flow guide surface which are located on one side of the fresh air cavity and are in collision contact with at least part of fresh air in the fresh air cavity.
Preferably, the waste gas discharge cavity is provided with a waste gas inlet and a waste gas outlet, the waste gas inlet is transversely distributed in a bilateral symmetry manner, the waste gas outlet is positioned on the left outer side in the longitudinal direction, and a negative pressure fan is connected between the waste gas inlet and the waste gas outlet; the fresh air cavity is provided with a fresh air inlet which is transversely and symmetrically distributed and a fresh air outlet which is positioned on the longitudinal inner side, the fresh air outlet is connected with the mixing cavity, and a compressor is connected between the fresh air inlet and the fresh air outlet.
Preferably, an exhaust gas cavity jet flow plate is arranged between each exhaust gas inlet and the negative pressure fan and is used for guiding exhaust gas in the exhaust gas discharge cavity to impact the energy storage heat exchange module; and/or a fresh air cavity jet flow plate is arranged between each fresh air inlet and the compressor and is used for leading fresh air in the fresh air cavity to impact the energy storage heat exchange module.
Preferably, the exhaust gas cavity jet flow plates are distributed in a bilateral symmetry manner in the transverse direction of the exhaust gas discharge cavity, and an included angle alpha is formed between each exhaust gas cavity jet flow plate and the longitudinal direction; the jet flow plates of the fresh air cavity are distributed in a left-right symmetrical mode in the transverse direction of the fresh air cavity, and an included angle beta is formed between each jet flow plate of the fresh air cavity and the longitudinal direction; further preferably, 20 DEG-alpha is less than or equal to 45 DEG and/or 20 DEG-beta is less than or equal to 40 deg.
Preferably, the mixing cavity is located on the longitudinal right side of the fresh air cavity, extends from the bottom to the top of the shell, is used for mixing fresh air and return air to form first air, and is provided with a return air inlet and a first air outlet which are respectively distributed in bilateral symmetry in the transverse direction, the mixing cavity is simultaneously connected with the fresh air outlet of the fresh air cavity, and the first air outlet is located on the transverse inner side of the return air inlet corresponding to the first air outlet and is connected with the air processing cavity; the gas treatment cavity is used for treating the first gas into a second gas, extends from the bottom to the top of the shell, is provided with a mixed air filter screen and/or a heat exchanger and/or a heater, and is provided with a second gas outlet connected with the air supply cavity; the air supply cavity is used as a second air conveying channel, extends from the bottom to the top of the shell, is provided with a centrifugal air supply unit and/or a variable-diameter air duct, and is provided with an air supply outlet positioned on the vertical right outer side.
Preferably, the area of the inlet end of the variable diameter air duct is smaller than that of the outlet end of the variable diameter air duct, and an air deflector is arranged inside the variable diameter air duct; and/or the air supply outlets comprise side air supply outlets and middle air supply outlets.
Preferably, the condensation air cavity is used as a heat dissipation channel when the vehicle air conditioning unit performs refrigeration work and is positioned at the upper parts of the waste gas discharge cavity and the fresh air cavity; and a part of the waste gas discharge cavity extends upwards to penetrate through the condensation air cavity, and the condensation air cavity is provided with a heat exchanger and/or a condensation fan.
Preferably, a pressure wave switch protection module is respectively installed on the inner side of each waste gas inlet and/or the inner side of each fresh air inlet, and the pressure wave switch protection module is controlled to be opened or closed according to the pressure difference between the inside and the outside of the vehicle room, so that the environmental comfort inside the vehicle is improved.
Preferably, the waste gas discharge cavity and/or the fresh air cavity and/or the mixing cavity and/or the air supply cavity are/is provided with a damper for air volume regulation; the intelligent air conditioning module comprises an electric control unit and an air conditioning working unit; the electric control unit is used for electrically connecting all electric devices of the vehicle air conditioning unit, and the intelligent controller is used for controlling operation; the air conditioning working unit connects the air conditioning structures of the vehicle air conditioning unit, and provides a comfortable and more energy-efficient compartment environment for the vehicle under the combined control of the electric control unit.
It should be noted that, the electric devices and the air conditioning structures of the vehicle air conditioning unit according to the present application may be appropriately selected with reference to common knowledge in the art, and the preferred embodiments provided in the embodiments of the present application may be adopted, but the present application is not limited to this.
This application sets up energy storage heat exchange module between vehicle air conditioning unit's exhaust emission chamber and new trend chamber through proposing, the waste gas that is located the exhaust emission chamber strikes energy storage heat exchange module respectively under the negative pressure effect with the new trend that is located the new trend chamber, make the difference in temperature between waste gas and the new trend intracavity new trend reduce in the exhaust emission chamber, thereby air conditioning unit's new trend load has effectively been reduced, make the vehicle air conditioning unit that this application provided have higher efficiency performance, and then practiced thrift the electric energy, the running cost has been reduced when reducing carbon emission.
Drawings
FIG. 1 is a top view of a vehicle air conditioning unit (with the top cover hidden) in accordance with an embodiment of the present invention
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a cross-sectional view of the lower portion of the vehicle air conditioning unit in accordance with the preferred embodiment of the present invention;
FIG. 4 is a partial schematic view of FIG. 3;
FIG. 5 is another partial schematic view of FIG. 3;
FIG. 6 is a schematic structural diagram of a lower variable diameter air duct in accordance with an embodiment of the present invention.
Detailed Description
The embodiment discloses a vehicle air conditioning unit with higher energy efficiency, which comprises a shell, an energy storage heat exchange module and an intelligent air conditioning module, wherein the shell comprises a waste gas discharge cavity for discharging waste gas in a vehicle, a fresh air cavity for introducing fresh air into the vehicle, a mixing cavity for mixing the fresh air and return air, a gas treatment cavity communicated with the mixing cavity, an air supply cavity communicated with the gas treatment cavity and a condensation air cavity; wherein, energy storage heat exchange module is located between exhaust emission chamber and the new trend chamber on vertical, and the waste gas that is located the exhaust emission chamber strikes energy storage heat exchange module with the new trend that is located the new trend chamber respectively under the negative pressure for the difference in temperature between exhaust emission intracavity waste gas and the new trend intracavity new trend reduces new trend load.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 3, a vehicle air conditioning unit with higher energy efficiency includes a housing 1, an energy storage heat exchange module 2 and an intelligent air conditioning module 4, where the housing 1 includes a waste gas discharge chamber 1a for discharging waste gas inside a vehicle, a fresh air chamber 1b for introducing fresh air into the vehicle, a mixing chamber 1c for mixing the fresh air and the return air, an air treatment chamber 1d communicated with the mixing chamber 1c, an air supply chamber 1e communicated with the air treatment chamber 1d, and a condensed air chamber 1 f.
Preferably, in the present embodiment, the exhaust gas discharge chamber 1a and the fresh air chamber 1b are respectively located at the lower part of the longitudinal left side of the casing 1, and a part of the exhaust gas discharge chamber 1a extends upwards through the condensed air chamber 1f along the longitudinal left side wall of the casing 1.
Preferably, in the present embodiment, the exhaust gas discharge chamber 1a is used as a discharge channel of turbid gas (i.e., "exhaust gas") in the vehicle interior, and is specifically provided with an exhaust gas inlet 1a4 and an exhaust gas outlet 1a5, which are symmetrically distributed in the lateral direction and located on the left and right sides in the longitudinal direction, and the negative pressure fan 1a1 is connected between the exhaust gas inlet 1a4 and the exhaust gas outlet 1a5, and specifically, the negative pressure fan 1a1 is used as a power device for discharging turbid gas in the vehicle interior and is installed at the bottom of the casing 1, and in order to control and regulate the exhaust air volume of the exhaust gas, in the present embodiment, an exhaust air regulation damper 1a2 is provided on the right side in the longitudinal direction of the negative pressure fan 1a 1.
Preferably, in the present embodiment, the fresh air cavity 1b is located at the longitudinal right side of the exhaust gas discharge cavity 1a relatively, and is used as an inlet channel for fresh air (i.e., "fresh air") inside the vehicle, and specifically provided with a fresh air inlet 1b5 and a fresh air outlet 1b6, which are laterally and symmetrically distributed, the fresh air outlet 1b6 is connected to the mixing cavity 1c, and a compressor 1b2 is connected between the fresh air inlet 1b5 and the fresh air outlet 1b 6; further preferably, in order to control and adjust the entering amount of the fresh air, in the present embodiment, a fresh air damper 1b1 is arranged in the middle of the fresh air cavity 1 b; particularly preferably, in order to facilitate the air conditioning effect, in the present embodiment, 2 compressors 1b2 and 4 groups of thermal expansion valves 1b3 are vertically arranged in a lateral left-right symmetrical manner on the longitudinal right side of the fresh air chamber 1 b.
As shown in fig. 4, in this embodiment, the energy storage and heat exchange module 2 is longitudinally located between the exhaust gas discharge cavity 1a and the fresh air cavity 1b, and the exhaust gas located in the exhaust gas discharge cavity 1a and the fresh air located in the fresh air cavity 1b respectively impact the energy storage and heat exchange module 2 under the negative pressure, so that the temperature difference between the exhaust gas in the exhaust gas discharge cavity 1a and the fresh air in the fresh air cavity 1b is reduced, and the fresh air load is reduced; preferably, in the present embodiment, the energy storage heat exchange module 2 is a block structure 2a made of a phase change material (in practical implementation, any known phase change material may be used, and the present embodiment is not particularly limited thereto); the energy storage heat exchange module 2 comprises a first transverse heat exchange surface 2b and/or a first flow guide surface 2d which is positioned on one side of the waste gas discharge cavity 1a and is in collision contact with at least part of waste gas in the waste gas discharge cavity 1a, and a second transverse heat exchange surface 2c and/or a second flow guide surface 2e which is positioned on one side of the fresh air cavity 1b and is in collision contact with at least part of fresh air in the fresh air cavity 1b, wherein the first flow guide surface 2d and the second flow guide surface 2e are structurally arranged to realize the function of gathering flow and guiding energy, so that the heat exchange space corresponding to air flow is further increased, and the heat exchange effect of the energy storage heat exchange module 2 is further improved; the shapes of the first flow guiding surface 2d and the second flow guiding surface 2e can be selected conventionally according to actual needs, and the shapes are not particularly limited in this application, and can be generally set to be convex outward (see fig. 4).
Further preferably, in the present embodiment, an exhaust gas cavity jet flow plate 1a3 is arranged between each exhaust gas inlet 1a4 and the negative pressure fan, and is used for guiding the exhaust gas in the exhaust gas discharge cavity 1a to impact the energy storage heat exchange module 2; and/or a fresh air cavity jet flow plate 1b4 is arranged between each fresh air inlet 1b5 and the compressor 1b2 and is used for guiding fresh air in the fresh air cavity 1b to impact the energy storage heat exchange module 2; preferably, in order to further enhance the effect of flow guiding and impacting on the exhaust gas in the exhaust gas discharge cavity 1a or the fresh air in the fresh air cavity 1b, in the present embodiment, the exhaust gas cavity jet flow plates 1a3 are distributed in bilateral symmetry in the transverse direction of the exhaust gas discharge cavity 1a, and each exhaust gas cavity jet flow plate 1a3 forms an included angle α with the longitudinal direction, wherein α is greater than or equal to 20 ° and less than or equal to 45 °; the jet flow plates 1b4 of the fresh air cavities are distributed in bilateral symmetry in the transverse direction of the fresh air cavity 1b, and the jet flow plates 1b4 of the fresh air cavities form an included angle beta with the longitudinal direction, wherein the beta is more than or equal to 20 degrees and less than or equal to 40 degrees;
in the embodiment, during actual operation, the temperature of the first transverse heat exchange surface 2b is the exhaust gas temperature t1 in the exhaust gas discharge cavity 1a, the temperature of the second transverse heat exchange surface 2c is the fresh air temperature t2 in the fresh air cavity 1b, under the drainage action of each exhaust gas cavity jet plate 1a3 and each fresh air cavity jet plate 1b4, the exhaust gas in the exhaust gas discharge cavity 1a and the fresh air in the fresh air cavity 1b respectively impact the first transverse heat exchange surface 2b and the second transverse heat exchange surface 2c under the negative pressure action, so that the temperature difference between the exhaust gas temperature t1 in the exhaust gas discharge cavity 1a and the fresh air temperature t2 in the fresh air cavity 1b is reduced, and therefore, the fresh air load is obviously reduced.
Preferably, in the present embodiment, the mixing chamber 1c is located at the longitudinal right side of the fresh air chamber 1b, extends from the bottom to the top of the housing 1, is rectangular, and is symmetrically distributed at the lateral outer side for mixing the fresh air and the return air to form a first air, specifically, there are provided a return air inlet 1c2 and a first air outlet 1c3, which are symmetrically distributed at the lateral outer side, and the mixing chamber 1c is connected to the fresh air outlet 1b6 of the fresh air chamber 1b at the same time, and the first air outlet 1c3 is located at the lateral inner side of the return air inlet 1c2 corresponding thereto and connected to the air processing chamber 1 d; further preferably, in order to control the amount of intake of the conditioned return air, in the present embodiment, a return air damper 1c1 is disposed on the side of the mixing chamber 1 c;
preferably, referring to fig. 5 in combination, in the present embodiment, the gas processing chamber 1d is used for heating, filtering or cooling, filtering the first gas into the second gas, and extends from the bottom to the top of the right side of the longitudinal direction of the housing 1, and is symmetrically distributed on the lateral outer side; the gas treatment cavity 1d is provided with a mixed air filter screen and/or a heat exchanger and/or a heater, and a second gas outlet connected with the air supply cavity 1 e; particularly preferably, in the present embodiment, the gas treatment chamber 1d is installed with a vertical mixed air screen 1d1, a first heat exchanger 1d2 and an electric heater 1d3 which are symmetrically arranged on the left and right sides in the transverse direction, wherein the number of each side of the mixed air screen 1d1, the heat exchanger 11d2 and the electric heater 1d3 is respectively 3, 1 and 1; meanwhile, the gas treatment chamber 1d has a water drain function, and the water drain position is located at the bottom of the electric heater 1d 3.
Preferably, in the present embodiment, the blowing chamber 1e is a duct for the second gas, and has a shape of a letter "convex" as a whole,the centrifugal blower set 1e1 and the variable diameter air duct 1e2 are arranged and extend from the bottom to the top of the shell 1, and an air supply outlet positioned on the vertical right outer side is arranged; further preferably, as shown in fig. 6, the area of the inlet end of the variable diameter air duct 1e2 is smaller than the area of the outlet end thereof, and an air deflector 1e23 is installed inside the variable diameter air duct 1e2, and particularly preferably, in the present embodiment, the effective area of the inlet end 1e21 is 81180mm2The effective area of the outlet end 1e22 is 222145mm2In order to facilitate air guiding, 2 air deflectors 1e23 are arranged in the variable diameter air duct 1e2 at intervals; the air supply outlets comprise a side air supply outlet 1e41 and a middle air supply outlet 1e 42; in order to control and adjust the amount of air supplied, it is further preferable that an air supply damper 1e3 be provided in the intermediate air supply port 1e42 in the present embodiment.
Preferably, in the present embodiment, please refer to fig. 2 in combination, the condensed air chamber 1f is used as a heat dissipation channel for the vehicle air conditioning unit to perform cooling operation, and is located at the upper part of the exhaust gas discharge chamber 1a and the fresh air chamber 1 b; wherein, the condensing air cavity 1f is provided with a heat exchanger and/or a condensing fan; particularly preferably, in the present embodiment, the second heat exchangers 1f1 are obliquely and symmetrically arranged on both lateral sides of the condensation air cavity 1f, and 2 groups of condensation fans 1f2 and electromagnetic valves 1f6 are longitudinally arranged in the middle; wherein, a duct 1f3 for connecting the second heat exchanger 1f1, a sight glass 1f4 and a dry filter 1f5 are respectively disposed at an upper portion of the exhaust gas discharge chamber 1a and at a longitudinal left side of the condensing air chamber 1 f.
Preferably, in order to further improve the environmental comfort inside the vehicle, a pressure wave switch protection module 3 is respectively installed on the inner side of each exhaust gas inlet 1a4 and/or the inner side of each fresh air inlet 1b5, and the pressure wave switch protection module 3 is controlled to be opened or closed according to the pressure difference between the inside and the outside of the vehicle; in practical implementation, the pressure wave switch protection module 3 may adopt a common-knowledge structure, and the control logic adopted by the module may adopt the following preferred schemes:
if the air pressure fluctuation satisfies the following condition:
the pressure change delta P in 1s is more than 500 Pa; or the like, or, alternatively,
the maximum variation quantity delta P of the pressure in 3s is more than 800 Pa; or the like, or, alternatively,
the maximum variation quantity delta P of the pressure in 10s is more than 1000 Pa;
the relay of the pressure wave switch protection module 3 acts to output a control signal to drive the corresponding protection valve to close, otherwise, the corresponding protection valve is kept in an open state; wherein the pressure change Δ P is an indoor and outdoor pressure difference of the vehicle.
Preferably, in the present embodiment, the smart air-conditioning module 4 includes an electric control unit and an air-conditioning operation unit; the electric control unit is used for electrically connecting all electric devices of the vehicle air conditioning unit, and the intelligent controller is used for controlling operation; the air conditioning working unit 1b connects the air conditioning structures of the vehicle air conditioning unit, and provides a comfortable and more energy-efficient compartment environment for the vehicle under the combined control of the electric control unit; specifically, preferably, each electric device in the present embodiment specifically includes a negative pressure fan 1a1, an exhaust air damper 1a2, a compressor 1b2, a thermostatic expansion valve 1b3, an return air damper 1c1, an electric heater 1d3, a centrifugal blower unit 1e1, an air supply damper 1e3, a condensing fan 1f2, an electromagnetic valve 1f6, a pressure wave protection system 3, and the like; each air conditioning structure of the vehicle air conditioning unit specifically includes a compressor 1b2, a first heat exchanger 1d2, a second heat exchanger 1f1, a solenoid valve 1f6, a thermostatic expansion valve 1b3, a sight glass 1f4, a drying filter 1f5, and the like, and these air conditioning structures are connected by an accessory structure such as a pipe 1f 3.
The vehicle air conditioning unit of the embodiment mainly comprises a heating working condition and a refrigerating working condition in the actual working process, wherein the temperature of the first gas is lower than that of the second gas in the heating working condition, and the temperature of the first gas is higher than that of the second gas in the refrigerating working condition; the air supply damper 1e3 controls the air volume of each air supply outlet through the intelligent air conditioning module 4, and particularly preferably, in order to facilitate the environmental comfort and convenience inside the vehicle, in the present embodiment, when supplying cold air, the opening degree of each intermediate air supply outlet 1e42 is set to 0 to 100%, and when supplying hot air, the opening degree of each intermediate air supply outlet 1e42 is set to 0 to 30%.
The heating fresh air load related to the application is 1.01 XQX1.2/3600 XDeltat 1, wherein Q is fresh air mass flow, Deltat 1 is indoor and outdoor temperature difference, Deltat is the difference value between the temperature of waste gas after heat exchange of an energy storage material and the temperature of fresh air after heat exchange of the energy storage material, when the Deltat is smaller, the higher the fresh air temperature rise value is, the smaller Deltat 1 is, and therefore the heating fresh air load is smaller; similarly, the smaller the delta t is, the smaller the enthalpy value of the fresh air is, and therefore, the refrigerating fresh air load is smaller.
And because the fresh air load is a key index for determining the energy consumption of the vehicle, the vehicle air conditioning unit provided by the embodiment can obtain higher energy efficiency performance, so that the electric energy is saved, the carbon emission is reduced, and the operation cost is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. A vehicle air conditioning unit with higher energy efficiency is characterized by comprising a shell, an energy storage heat exchange module and an intelligent air conditioning module, wherein the shell comprises a waste gas discharge cavity for discharging waste gas in a vehicle, a fresh air cavity for introducing fresh air into the vehicle, a mixing cavity for mixing the fresh air and return air, a gas treatment cavity communicated with the mixing cavity, an air supply cavity communicated with the gas treatment cavity and a condensed air cavity; wherein, energy storage heat exchange module is located on vertical exhaust emission chamber with between the new trend chamber, the waste gas that is located the exhaust emission chamber and the new trend that is located the new trend chamber strike respectively under the negative pressure energy storage heat exchange module for the difference in temperature between exhaust emission intracavity waste gas and the new trend intracavity new trend reduces new trend load.
2. The vehicle air conditioning unit according to claim 1, wherein the energy storage heat exchange module is made of a phase change material and comprises a first transverse heat exchange surface and/or a first flow guide surface which is located at one side of the exhaust gas discharge cavity and is in collision contact with at least part of the exhaust gas in the exhaust gas discharge cavity, and a second transverse heat exchange surface and/or a second flow guide surface which is located at one side of the fresh air cavity and is in collision contact with at least part of the fresh air in the fresh air cavity.
3. The vehicle air conditioning unit according to claim 1, wherein the exhaust gas discharge chamber is provided with exhaust gas inlets which are symmetrically distributed in the lateral direction and an exhaust gas outlet which is located on the left outer side in the longitudinal direction, and a negative pressure fan is connected between the exhaust gas inlets and the exhaust gas outlet; the fresh air cavity is provided with a fresh air inlet which is transversely and symmetrically distributed and a fresh air outlet which is positioned on the longitudinal inner side, the fresh air outlet is connected with the mixing cavity, and a compressor is connected between the fresh air inlet and the fresh air outlet.
4. The vehicle air conditioning unit according to claim 3, wherein an exhaust gas cavity jet plate is provided between each exhaust gas inlet and the negative pressure fan for guiding exhaust gas in the exhaust gas discharge cavity to impact the energy storage heat exchange module; and/or a fresh air cavity jet flow plate is arranged between each fresh air inlet and the compressor and is used for leading fresh air in the fresh air cavity to impact the energy storage heat exchange module.
5. The vehicle air conditioning unit according to claim 4, wherein each of the exhaust gas chamber jet plates is disposed in bilateral symmetry in a transverse direction of the exhaust gas discharge chamber, and each of the exhaust gas chamber jet plates has an angle α with the longitudinal direction; each fresh air cavity jet flow plate is transversely and bilaterally symmetrically distributed in the fresh air cavity, and an included angle beta is formed between each fresh air cavity jet flow plate and the longitudinal direction.
6. The vehicle air conditioning unit according to claim 1 or 3, wherein the mixing chamber is located on the longitudinal right side of the fresh air chamber and extends from the bottom to the top of the housing for mixing fresh air and return air to form first air, a return air inlet and a first air outlet are provided, the return air inlet and the first air outlet are respectively distributed in bilateral symmetry in the transverse direction, the mixing chamber is simultaneously connected with the fresh air outlet of the fresh air chamber, and the first air outlet is located on the transverse inner side of the corresponding return air inlet and is connected with the air processing chamber; the gas treatment cavity is used for treating the first gas into a second gas, extends from the bottom to the top of the shell, is provided with a mixed air filter screen and/or a heat exchanger and/or a heater, and is provided with a second gas outlet connected with the air supply cavity; the air supply cavity is used as a second air conveying channel, extends from the bottom to the top of the shell, is provided with a centrifugal air supply unit and/or a variable-diameter air duct, and is provided with an air supply outlet positioned on the vertical right outer side.
7. The vehicle air conditioning unit according to claim 6, wherein the area of the inlet end of the variable diameter air duct is smaller than the area of the outlet end thereof, and an air deflector is installed inside the variable diameter air duct; and/or the air supply outlets comprise side air supply outlets and middle air supply outlets.
8. The vehicle air conditioning unit according to claim 1 or 3, wherein the condensed air chamber is located above the exhaust gas discharge chamber and the fresh air chamber as a heat dissipation passage when the vehicle air conditioning unit performs a cooling operation; and a part of the waste gas discharge cavity extends upwards to penetrate through the condensation air cavity, and the condensation air cavity is provided with a heat exchanger and/or a condensation fan.
9. The vehicle air conditioning unit according to claim 3, wherein a pressure wave switch protection module is installed inside each exhaust gas inlet and/or inside each fresh air inlet, and the pressure wave switch protection module is controlled to be turned on or off according to the pressure difference between the inside and the outside of the vehicle room, so as to improve the environmental comfort inside the vehicle.
10. The vehicle air conditioning assembly according to claim 1, wherein the exhaust gas discharge chamber and/or the fresh air chamber and/or the mixing chamber and/or the blast chamber are provided with a damper for air volume adjustment; the intelligent air conditioning module comprises an electric control unit and an air conditioning working unit; the electric control unit is used for electrically connecting all electric devices of the vehicle air conditioning unit, and the intelligent controller is used for controlling operation; the air conditioning working unit connects the air conditioning structures of the vehicle air conditioning unit, and provides a comfortable and more energy-efficient compartment environment for the vehicle under the combined control of the electric control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137375.7A CN114537458A (en) | 2022-02-15 | 2022-02-15 | Vehicle air conditioning unit with higher energy efficiency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137375.7A CN114537458A (en) | 2022-02-15 | 2022-02-15 | Vehicle air conditioning unit with higher energy efficiency |
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| CN114537458A true CN114537458A (en) | 2022-05-27 |
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| CN202210137375.7A Pending CN114537458A (en) | 2022-02-15 | 2022-02-15 | Vehicle air conditioning unit with higher energy efficiency |
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| CN (1) | CN114537458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116476882A (en) * | 2023-05-30 | 2023-07-25 | 石家庄国祥运输设备有限公司 | High energy efficiency ratio air conditioning unit for railway vehicle |
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2022
- 2022-02-15 CN CN202210137375.7A patent/CN114537458A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116476882A (en) * | 2023-05-30 | 2023-07-25 | 石家庄国祥运输设备有限公司 | High energy efficiency ratio air conditioning unit for railway vehicle |
| CN116476882B (en) * | 2023-05-30 | 2024-02-13 | 石家庄国祥运输设备有限公司 | High energy efficiency ratio air conditioning unit for railway vehicle |
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