CN217864137U - Rail vehicle and air conditioning unit thereof - Google Patents
Rail vehicle and air conditioning unit thereof Download PDFInfo
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- CN217864137U CN217864137U CN202222335040.4U CN202222335040U CN217864137U CN 217864137 U CN217864137 U CN 217864137U CN 202222335040 U CN202222335040 U CN 202222335040U CN 217864137 U CN217864137 U CN 217864137U
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Abstract
The air conditioning unit of the railway vehicle comprises a shell, an air feeder and a heating part, wherein the air feeder and the heating part are arranged in the shell; the heating portion includes two at least electric heater, and each electric heater is in proper order along axial range upon range of arranging in the air supply intracavity, and every electric heater includes the heating pipe that many arrange side by side, and the axis coplane of each heating pipe forms the hot side, is preset the contained angle between the axial cross-section of perpendicular to in hot side and air supply chamber, and the hot side is compared in the hot side towards one side of forced draught blower and is kept away from one side of forced draught blower, is more close to the supply-air outlet. The electric heating power of the air conditioning unit can be effectively improved, so that more application occasions are met.
Description
Technical Field
The application relates to the technical field of railway vehicles, in particular to a railway vehicle and an air conditioning unit thereof.
Background
The air conditioning units of rail vehicles, which can be used for comfort in regulating the ambient temperature in the passenger compartment of a passenger compartment, are one of the important components of rail vehicles.
The electric heating power of the current air conditioning unit is generally in the range of 7 kW-10 kW, the space for installing the electric heater is small, and if a high-power electric heater is configured, overtemperature protection is easily caused, so that the high-power electric heater cannot be arranged, and the application in some special occasions cannot be met.
Therefore, for the air conditioning unit of the railway vehicle, how to increase the electric heating power of the air conditioning unit to meet more application occasions is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model provides a rail vehicle and rail vehicle's air conditioning unit can promote air conditioning unit's electrical heating power to satisfy more application scenarios.
In order to solve the technical problem, the application provides an air conditioning unit of a railway vehicle, which comprises a casing, a blower and a heating part, wherein the blower and the heating part are arranged in the casing; the heating part includes two at least electric heater, each electric heater in proper order along axial range upon range of arrange in the air supply intracavity, every electric heater includes many heating pipes that arrange side by side, each the axis coplane of heating pipe forms the heating surface, the heating surface with be preset the contained angle between the axial cross-section of the perpendicular to in air supply chamber, just the heating surface orientation one side of forced draught blower compare in the heating surface is kept away from one side of forced draught blower, is more close to the supply-air outlet.
Because the outlet of the blower is arranged along the horizontal direction, in the process that the air from the outlet of the blower is heated by the heating part in the air supply cavity and is discharged from the air supply outlet, the air needs to be turned by 90 degrees, each heater of the heating part is obliquely arranged in the air supply cavity, one side end, facing the blower, of the heating surface of the electric heater is lower than one side end, away from the blower, of the heating surface, so that the air cannot intensively pass through the same position of the heating surface of the electric heater after being turned by degrees, only one position participates in heat exchange in the whole heating surface of the electric heater, and other positions do not participate in heat exchange, thereby ensuring that all positions of the heating surface of the electric heater can play the heating function, further improving the heating efficiency and ensuring the heating effect of the electric heater.
And because the heating surface of electric heater slope sets up, can make electric heater's heating area increase, further increase the heat transfer area of wind, promote the heating effect of heating portion to wind.
The heating part comprises at least two electric heaters which are arranged in a stacked mode, the air exhausted from the air blower outlet can be heated by the electric heaters simultaneously, heating efficiency is improved, working conditions of the electric heaters can be adjusted according to requirements of the temperature of the air at the specific air supply outlet, if part of the electric heaters work, and the part of the electric heaters stop working, flexibility is good.
Because each electric heater is arranged in the independent cavity of the air supply cavity, the installation space of the heating part is larger, and the installation is more flexible, so that the condition of over-temperature protection caused by larger electric heating power can be avoided while certain occasions requiring high-power electric heating are met.
Optionally, the heating part further includes a first bracket fixedly disposed in the air supply cavity, and each of the electric heaters is fixed to the first bracket.
Optionally, each of the electric heaters is fixed to the first bracket by a fastener; and/or the first bracket is fixed in the air supply cavity through a fastener.
Alternatively, the heating part includes one first heater and two second heaters, the first heater is an electric heater having a heating power KW, and the second heater is an electric heater having a heating power KW.
Optionally, the preset included angle is 45 ° to 70 °.
Optionally, a compressor, a ventilator, a condensing fan, an exhaust fan, an evaporator, a condenser and a throttling device integrated with the casing are further included.
Optionally, an air return cavity is further formed in the end portion of the casing, and the air conditioning unit is integrated with an electrical cabinet located in the air return cavity.
Optionally, the casing is further provided with a waste discharge cavity, the waste discharge cavity is located between the compressor and the air supply cavity, and the air conditioning unit is further integrated with a waste discharge device located in the waste discharge cavity.
The application also provides a rail vehicle, including as above the air conditioning unit.
The technical effect of the rail vehicle with the air conditioning unit is similar to that of the air conditioning unit, and is not repeated herein for saving space.
Drawings
FIG. 1 is a schematic bottom view of an air conditioning assembly of a rail vehicle according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of the heating portion of FIG. 1;
fig. 3 is a schematic diagram of the arrangement of the blower and the heating portion.
In fig. 1-3, the reference numerals are illustrated as follows:
1-casing, 11-air supply cavity, 12-air supply outlet and 13-air return cavity; 2-blower, 21-outlet; 3-heating section, 31-electric heater, 311-heating surface, 32-first support; 4-a compressor; 5-a condenser; 6-an evaporator; 7-an electrical cabinet; 8-a waste discharge device.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the present application is further described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the application provides a rail vehicle and rail vehicle's air conditioning unit, and wherein, rail vehicle includes air conditioning unit, and air conditioning unit can adjust the temperature in rail vehicle's the carriage to satisfy the passenger's in the carriage travelling comfort.
Specifically, as shown in fig. 1, the air conditioning unit for a rail vehicle includes a casing 1, and a blower 2 and a heating unit 3 which are provided in the casing 1, wherein the casing 1 is provided with a blowing cavity 11 and a blowing port 12, the blowing cavity 11 is communicated between an outlet 21 of the blower 2 and the blowing port 12, and an axis of the blowing cavity 11 perpendicular to an axis of the outlet 21 of the blower 2, the heating unit 3 includes at least two electric heaters 31, the electric heaters 31 are sequentially stacked in the blowing cavity 11 in an axial direction, and wind discharged from the blower 2 is heated by the electric heaters 31 of the heating unit 3 and then discharged into a vehicle compartment through the blowing port 12.
Each electric heater 31 is similar in structure, and as shown in fig. 2, includes a plurality of heating tubes arranged in parallel, axes of the heating tubes are arranged in parallel in sequence, axes of the heating tubes are coplanar, and form a heating surface 311, it is understood that, for the same electric heater 31, axes of the heating tubes are on the heating surface 311. As shown in fig. 3, the heating surface 311 and the cross section of the blowing cavity 11 perpendicular to the axial direction form a predetermined included angle α, that is, the electric heater 31 is obliquely disposed in the blowing cavity 11, and a side of the heating surface 311 facing the blower 2 is disposed closer to the blowing port 12 than a side of the heating surface 311 away from the blower 2.
In detail, in the air conditioning unit, in the installation state, the outlet 21 of the blower 2 is arranged along the horizontal direction, the axis of the blowing cavity 11 is arranged along the vertical direction, the cross section of the blowing cavity 11 perpendicular to the axial direction is arranged along the horizontal direction and perpendicular to the axis, at this time, the included angle between the heating surface 311 of the electric heater 31 and the horizontal plane is the preset included angle α, and the height of the heating surface 311 facing to one side end of the blower 2 is lower than the height of the heating surface 311 away from one side end of the blower 2.
Since the outlet 21 of the blower 2 is arranged along the horizontal direction, the air from the outlet 21 of the blower 2 needs to make a 90 ° turn while passing through the blowing cavity 11, being heated by the heating part 3 and discharged from the blowing port 12, in this embodiment, each heater of the heating part 3 is obliquely arranged in the blowing cavity 11, one side end of the heating surface 311 of the electric heater 31 facing the blower 2 is lower than one side end of the heating surface 311 far away from the blower 2, so that the air does not intensively pass through the same position of the heating surface 311 of the electric heater 31 after passing through the 90 ° turn, and only a certain position of the whole heating surface 311 of the electric heater 31 participates in heat exchange, while the rest positions do not participate in heat exchange, thereby ensuring that all positions of the heating surface 311 of the electric heater 31 can exert their heating functions, further improving the heating efficiency, and ensuring the heating effect of the electric heater 31.
In addition, since the heating surface 311 of the electric heater 31 is disposed obliquely, the heating area of the electric heater 31 can be increased, the heat exchange area of the wind can be further increased, and the heating effect of the heating unit 3 on the wind can be improved.
The heating part 3 includes at least two electric heaters 31 arranged in a stacked manner, and can heat the wind discharged from the outlet 21 of the blower 2 through the plurality of electric heaters 31 at the same time to improve the heating efficiency, and can adjust the working conditions of each electric heater 31 according to the specific requirement of the temperature of the wind at the air supply outlet 12, such as the working of a part of the electric heaters 31 and the stopping of the part of the electric heaters 31, so that the flexibility is good.
In this embodiment, since each electric heater 31 is disposed in an independent cavity of the blowing cavity 11, the installation space of the heating part 3 is large, and the installation is more flexible, so that the situation of over-temperature protection caused by large electric heating power can be avoided while meeting some occasions requiring high-power electric heating.
The size of the preset included angle α is not limited, and in this embodiment, according to analysis simulation and experiments, when the preset included angle α is set to 45 ° to 70 °, the heating effect of the electric heater 31 on the wind sent by the blower 2 is the best, and the preset included angle α may be specifically set according to actual conditions, for example, set to 60 °.
In this embodiment, the number of the electric heaters 31 of each heating portion 3 is not limited, for example, the heating portion 3 includes three electric heaters 31, which are respectively a first heater and two second heaters, where the first heater is the electric heater 31 with a heating power of 5kW, and the second heater is the electric heater 31 with a heating power of 10kW, so that the maximum heating power of the heating portion 3 can reach 25kW, and meanwhile, the heating conditions with heating powers of 5kW, 10kW, 15kW, and 20kW can be respectively realized according to needs.
According to the air conditioning unit for the railway vehicle, the temperature of the electric heating part can be ensured to meet the requirements that the air supply temperature is less than 57 ℃ and the temperature rise is less than or equal to 37 ℃ through measurement, calculation and experiments.
Of course, the heating unit 3 that realizes the maximum heating power of 25kW may include five first heaters, and may be provided according to the maximum heating power of the heating unit 3 and the space condition of the blowing chamber 11.
The heating part 3 further includes a first bracket 32 fixedly disposed in the air blowing cavity 11, as shown in fig. 2, each electric heater 31 is respectively fixed to the first bracket 32, specifically, the first bracket 32 is provided with a mounting interface adapted to each electric heater 31, during mounting, each electric heater 31 is sequentially mounted and fixed to the corresponding mounting interface, the angle of the heating surface 311 of the electric heater 31 can be automatically adjusted, and a preset included angle α is formed between the heating surface and the cross section perpendicular to the axial direction of the air blowing cavity 11, in this way, when each electric heater 31 is mounted, the mounting position and angle of the electric heater 31 do not need to be adjusted many times, and the mounting efficiency of the electric heater 31 can be effectively improved. The specific structure of the first support 32 is not limited, and may be set according to actual conditions.
Further, each electric heater 31 is fixed with the first support 32 through a fastener, and the two electric heaters can be connected through welding, clamping and the like, and when the electric heaters are connected through the fastener, the mounting stability can be ensured while the electric heaters are convenient to disassemble and assemble.
The first support 32 and the inner wall of the air blowing cavity 11 are also fixed by a fastening member, and specifically, after the electric heaters 31 are respectively fixed to the first support 32, the first support 32 and the electric heaters 31 may be fixed to the inner wall of the air blowing cavity 11 as a whole, or the first support 32 and the inner wall of the air blowing cavity 11 may be fixed first, and then the electric heaters 31 are respectively fixed to the first support 32. The disassembly and assembly operation can be simplified through the fixation of the fastening piece, and the installation stability can be ensured.
The air conditioning unit further comprises a compressor 4, a ventilator, a condensing fan, an exhaust fan, an evaporator 6, a condenser 5, a throttling device and the like which are integrated in the casing 1, and the components are all conventional setting components of the air conditioning unit, and for saving space, the details of the components are not repeated.
And furthermore, the air conditioning unit also comprises a waste discharge cavity which is arranged between the compressor 4 and the air supply cavity 11, and the air conditioning unit is also integrated with a waste discharge device 8 (shown in figure 1) which is positioned in the waste discharge cavity, so that the traditional waste discharge device 8 under the vehicle is cancelled, the waste discharge device 8 is miniaturized and modularized and is integrated into the machine shell 1, and the problem of insufficient installation space under the vehicle is solved.
As shown in fig. 1, the end of the casing 1 is further provided with a return air chamber 13, a return air blower is arranged in the return air chamber 13, the return air chamber 13 is communicated between the return air blower and a return air inlet, the air conditioning unit is further integrated with an electrical cabinet 7, and the electrical cabinet 7 is located in the return air chamber 13. The electrical cabinet 7 is integrated in the air conditioning unit, so that the passenger room can be cancelled to be provided with the independent electrical cabinet 7, the riding space in the vehicle is saved, the manpower installation operation is reduced, and the cost is reduced. And, when the regulator cubicle 7 is integrated in return air chamber 13, the return air current is inhaled from the return air inlet, gets into return air chamber 13 to finally return air conditioning unit, at this in-process, the return air current can dispel the heat to regulator cubicle 7, guarantees that regulator cubicle 7's operation is stable.
Specifically, a second support is arranged in the air return cavity 13, the electrical cabinet 7 is fixed to the second support, and the second support and the inner wall of the air return cavity 13 and the electrical cabinet 7 and the second support are both fixed through fasteners, so that the electrical cabinet 7 can be conveniently installed.
The electrical cabinet 7 comprises a frequency conversion control part, which can be used for frequency conversion control of a waste exhaust fan, an evaporation fan, a condensation fan and the like of the compressor 4, the ventilator and the waste exhaust device 8, and the electrical cabinet 7 further comprises a communication module for communicating with parts such as a touch screen and a switch which are positioned in a carriage.
Specifically, how to use the frequency conversion control component of the electrical cabinet 7 for frequency conversion control of each blower, and how to communicate between the communication module of the electrical cabinet 7 and the components such as the touch screen and the switch in the compartment, is a well-known prior art for those skilled in the art, and is not described herein again for saving space.
The air conditioning unit is provided with two independent refrigerating systems and two independent heating systems, wherein one system fails and does not influence the work of the other system. The number of the air blowers 2 and the number of the air supply cavities 11 are two respectively, and the heating parts 3 are arranged in the two air supply cavities 11 respectively. As shown in fig. 1, the two ends of the casing 1 are respectively provided with the return air chambers 13, and the electrical cabinet 7 can be placed in the return air chamber 13 at one end.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (9)
1. The air conditioning unit of the railway vehicle is characterized by comprising a machine shell (1), a blower (2) and a heating part (3) which are arranged in the machine shell (1), wherein the machine shell (1) is provided with a blowing cavity (11) and a blowing opening (12), the blowing cavity (11) is communicated between an outlet (21) of the blower (2) and the blowing opening (12), and the axis of the blowing cavity (11) is vertical to the axis of the outlet (21) of the blower (2);
heating portion (3) include two at least electric heater (31), each electric heater (31) follow the axial in proper order and range upon range of arrange in air supply chamber (11), every electric heater (31) include many heating pipes of arranging side by side, each the axis coplane of heating pipe forms heating surface (311), heating surface (311) with be preset the contained angle between the axial cross-section of the perpendicular to in air supply chamber (11), just heating surface (311) orientation one side of forced draught blower (2) compare in heating surface (311) is kept away from one side of forced draught blower (2), is closer to supply-air outlet (12).
2. Air conditioning unit for rail vehicles according to claim 1, characterized in that the heating part (3) further comprises a first bracket (32) fixed inside the blowing chamber (11), each electric heater (31) being fixed to the first bracket (32).
3. Air conditioning assembly for rail vehicles according to claim 2, characterized in that each of the electric heaters (31) is fixed to the first bracket (32) by a fastener;
and/or the first bracket (32) is fixed in the air supply cavity (11) through a fastener.
4. Air conditioning assembly for a rail vehicle according to any of claims 1 to 3, characterized in that the heating part (3) comprises one first heater and two second heaters, the first heater being an electric heater (31) with a heating power of 5KW and the second heater being an electric heater (31) with a heating power of 10 KW.
5. Air conditioning unit for rail vehicles according to any of claims 1 to 3, characterized in that the preset angle is 45 ° to 70 °.
6. Air conditioning assembly according to any of claims 1 to 3, characterized in that it further comprises a compressor (4), a ventilator, a condensing fan, an exhaust fan, an evaporator (6), a condenser (5) and a throttling device integrated in the casing (1).
7. Air conditioning unit for rail vehicles according to claim 6, characterized in that the end of the cabinet (1) is also provided with a return air chamber (13), the air conditioning unit integrating an electrical cabinet (7) located in the return air chamber (13).
8. Air conditioning unit for rail vehicles according to claim 6, characterized in that said casing (1) is also provided with a waste discharge chamber located between said compressor (4) and said blowing chamber (11), said air conditioning unit also integrating a waste discharge device (8) located in said waste discharge chamber.
9. A rail vehicle, characterized in that it comprises an air conditioning assembly according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222335040.4U CN217864137U (en) | 2022-09-02 | 2022-09-02 | Rail vehicle and air conditioning unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222335040.4U CN217864137U (en) | 2022-09-02 | 2022-09-02 | Rail vehicle and air conditioning unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217864137U true CN217864137U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222335040.4U Active CN217864137U (en) | 2022-09-02 | 2022-09-02 | Rail vehicle and air conditioning unit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217864137U (en) |
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2022
- 2022-09-02 CN CN202222335040.4U patent/CN217864137U/en active Active
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