Middle passenger car air duct structure

Abstract

The utility model relates to the technical field of passenger car air conditioners, and provides a middle passenger car air duct structure which comprises an air conditioner assembly and an air outlet assembly, and the air conditioner assembly comprises a plurality of air supply outlets formed in an air conditioner and a Y-shaped pipeline connected with the air supply outlets; the air outlet assembly comprises two air channels, the air channels are connected with the Y-shaped pipeline and arranged at the top of a passenger compartment of the passenger car, a strip-shaped groove partition is arranged between the two air channels, the cross sections of the two air channels are shrunk downwards, and the break angle is in an arc shape, so that air is conveniently guided to an air outlet in the side away from the strip-shaped groove, and the local resistance coefficient at the turning position is reduced; and meanwhile, the air outlets are formed in the side, away from the strip-shaped groove, of the air duct at equal intervals, so that the air volume and the temperature of all positions in the compartment are more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of bus air conditioners, in particular to a central bus air duct structure. Background Art

[0002] In order to provide passengers with a comfortable riding environment and reduce travel fatigue, an air conditioning system is usually installed in the bus. In the entire bus air conditioning system, the air duct and the air outlet constitute the air conditioning ventilation system, which is responsible for sending the processed airflow to the car cockpit to complete the functions of ventilation, cooling, heating, defrosting and defogging, and air purification in the cockpit. Among them, the air duct connects the air conditioner and the air outlet, and is the channel for cooling and heating air in the air conditioning system. At present, the air conditioning system is provided by the air conditioning manufacturer. The air duct design as part of the air conditioning system requires the bus design department to make a matching design. The air flow field and temperature field in the car are not only related to the car structure and the air conditioning refrigeration system, but also closely related to the structural shape of the air conditioning duct. The layout direction of the air duct, the space occupied by the air duct (cross-sectional area), and the air flow rate in the air duct all affect the cooling effect in the car, the economy of the system and the appearance.

[0003] At present, an air conditioner and an air duct connected to the air outlet of the air conditioner are usually provided on the top of the car, and an air outlet is opened on the air duct so that the cold air can be delivered to the car through the air outlet on the top of the car when the air conditioner is cooling. In the prior art, most of the air ducts provided on the top of the car have an angled cross section and are provided on both sides of the car, but this design is not conducive to guiding the wind to the outlet. When the air flows through the angle, the airflow will swirl in the local area, causing energy loss, affecting the air supply volume of each outlet, and generating noise. Utility Model Content

[0004] The utility model aims to provide a centrally mounted passenger car air duct structure, aiming to improve the problem of relatively uneven air supply of air conditioners in existing passenger car compartments.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mid-mounted bus air duct structure, comprising:

[0007] An air conditioning assembly, the air conditioning assembly comprising a plurality of air supply ports arranged on the air conditioner and a Y-shaped pipe connecting the air supply ports;

[0008] An air outlet component includes two air ducts, the air ducts are connected to the Y-shaped pipe, the air ducts are arranged on the top of the passenger compartment of the bus, a strip groove is arranged between the two air ducts, the cross-sections of the two air ducts are tightened downward and the corners are arc-shaped, and a plurality of air outlets are arranged at equal intervals on one side of the air duct away from the strip groove.

[0009] Preferably, the air outlet assembly further includes an air duct and an air outlet port connected to the air duct, the air duct is connected to the Y-shaped pipe, and the air outlet port is arranged on the top of the cockpit of the bus.

[0010] Preferably, the air outlets are two and are respectively arranged on both sides of the top of the cockpit of the bus, and the air ducts are two and are respectively arranged on both sides of the Y-shaped pipe.

[0011] Preferably, a guide body is provided at the end of the air duct, and the guide body is an arc-shaped sheet and extends and expands outwards in accordance with the wind direction of the air duct.

[0012] Preferably, the air outlet component also includes a plurality of air outlet opening and closing flaps, and the air outlet opening and closing flaps are arranged on the air outlet; the air conditioning component also includes a plurality of air supply outlet opening and closing flaps, and the air supply outlet opening and closing flaps are arranged on the air supply outlet.

[0013] Preferably, it also includes: a drive component, which is electrically connected to the air outlet opening and closing flap and the air supply outlet opening and closing flap; and a switch component, which is electrically connected to the air conditioner and the drive component.

[0014] Preferably, the strip-shaped groove is arranged in the middle of the top end of the passenger compartment of the bus, and the two air ducts are symmetrically arranged on both sides of the strip-shaped groove.

[0015] Preferably, a light strip is provided on the strip-shaped groove.

[0016] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0017] 1. In the utility model, the air conditioning assembly sends wind to the air outlet assembly, and the air outlet assembly sends the wind evenly to the car, wherein the two air ducts in the air outlet assembly are symmetrically arranged at the top center of the bus, the cross-sectional angle of the air duct is an arc transition, and the air duct is wide at the top and narrow at the bottom, thereby guiding the wind to the air outlet on the side of the air duct, reducing the pressure loss of the air duct, making the air outlet of each air outlet more uniform, and at the same time, a number of air outlets are evenly spaced to make the air volume and temperature in various places in the car more uniform.

[0018] 2. In the utility model, a guide body is provided at the end of the air duct, and the contact surface between the guide body and the wind in the air duct is an arc-shaped smooth transition to avoid sudden changes in the flow direction and flow velocity of the wind, and guide the wind to the air outlet at the end of the air duct to reduce the loss of air volume at the end of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the mid-mounted passenger car air duct structure located on the top of the car body according to the utility model;

[0020] Figure 2 for Figure 1The cross-sectional structure diagram of BB shown;

[0021] Figure 3 for Figure 1 The cross-sectional structure diagram of AA shown;

[0022] Figure 4 This is a schematic diagram of the internal structure of the air duct described in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the passenger car described in the utility model.

[0024] Description of reference numerals:

[0025] 1. Air conditioning assembly; 11. Air conditioning; 12. Air supply outlet; 13. Air supply outlet opening and closing flap; 14. Y-shaped pipe; 2. Air outlet assembly; 21. Air duct; 211. Body guide; 22. Air outlet; 23. Air outlet opening and closing flap; 24. Strip groove; 25. Air duct; 26. Air outlet pipe outlet; 3. Light strip. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0030] Example

[0031] Please refer to Figure 1 and Figure 5 As shown, the present embodiment provides a mid-mounted bus air duct structure, including an air conditioning assembly 1 and an air outlet assembly 2, the air conditioning assembly 1 including a plurality of air supply ports 12 arranged on the air conditioner 11 and a Y-shaped duct 14 connecting the air supply ports 12; the air outlet assembly 2 includes two air ducts 21, the air ducts 21 are connected to the Y-shaped duct 14, the air ducts 21 are arranged on the top of the passenger compartment of the bus, a strip groove 24 is provided between the two air ducts 21, the cross-sections of the two air ducts 21 are tightened downward and the corners are arc-shaped, and a plurality of air outlets 22 are evenly spaced on one side of the air duct 21 away from the strip groove 24.

[0032] The strip groove 24 is disposed at the top middle portion of the passenger compartment of the bus, and the two air ducts 21 are symmetrically arranged on both sides of the strip groove 24, so that the wind sent out from the air outlet 22 of the air duct 21 can flow around the compartment.

[0033] Specifically, two air ducts 21 are symmetrically arranged in the center of the top of the bus. Both air ducts 21 are connected to the Y-shaped pipe 14. The air supply port 12 on the air conditioner 11 delivers air into the air duct 21 through the Y-shaped pipe 14, and the wind in the air duct 21 is dispersed into the passenger compartment of the bus through the air outlet 22. In order to reduce the pressure loss of the air duct 21 and facilitate guiding the wind to the air outlet 22, a strip groove is provided in the center of the top of the bus to separate the two air ducts 21. The cross-sections of the two air ducts 21 are tightened downward and the corners are arc-shaped, which guides the wind to the air outlet 22 away from the side of the strip groove, reduces the local resistance coefficient at the turning point, reduces the swirl of the air flow in the local area, reduces energy loss, and reduces the noise generated by the swirl of the air flow.

[0034] At the same time, as the air flows through the reducer, the flow velocity changes due to the change in the flow cross-section, boundary layer detachment occurs in the deceleration and compression area and a vortex is formed, causing local resistance loss. The greater the change in the flow cross-section, the greater the loss. Therefore, the air supply port 12 and the air duct 21 are connected with a gradual Y-shaped pipe 14 to reduce the change in the flow cross-section.

[0035] In addition, air outlets 22 are evenly spaced on one side of the air duct 21 away from the strip grooves 24, so that the air volume and temperature in the passenger compartment are more uniform. In a preferred embodiment, the total effective area of ​​the air outlets 22 is 200-300 cm2 (the most recommended air volume is 180-270 L / S).

[0036] Furthermore, if Figure 4As shown, a guide body 211 is provided at the end of the air duct 21. The guide body 211 is an arc-shaped sheet and extends outwardly in accordance with the wind direction of the air duct 21. Specifically, the ends of the two air ducts 21 are not connected, and the blocking surface is an arc-shaped that expands outward. The end ends of the two air ducts 21 are distributed in an "eight" shape to reduce the local resistance coefficient at the end of the air duct 21 and guide the wind to the air outlet 22 at the end of the air duct 21.

[0037] Furthermore, if Figure 2 and Figure 3 As shown, the air outlet assembly 2 further includes a plurality of air outlet opening and closing flaps 23, which are arranged on the air outlet 22; the air conditioning assembly 1 further includes a plurality of air supply opening and closing flaps 13, which are arranged on the air supply 12. At the same time, in this embodiment, a driving assembly and a switch assembly are also included, the driving assembly is electrically connected to the air outlet opening and closing flaps 23 and the air supply opening and closing flaps 13; the switch assembly is electrically connected to the air conditioner 11 and the driving assembly.

[0038] Specifically, the driving component obtains the working mode sent by the switch component, and adjusts the opening and closing of the air supply opening and closing flap 13 and the air outlet opening and closing flap 23 according to the working mode, so as to intelligently adjust the air volume in the passenger compartment to meet the cooling or heating needs of the passengers.

[0039] In this embodiment, if Figure 1 and Figure 2 As shown, a light strip 3 is provided on the strip groove 24, which can be used for lighting and brightness adjustment in the passenger compartment.

[0040] Please refer to Figure 1 As shown, the air outlet assembly 2 also includes an air duct 25 and an air outlet duct port 26 connected to the air duct 25. The air duct 25 is connected to the Y-shaped pipe 14. The air outlet duct port 26 is arranged at the top of the cockpit of the bus. Specifically, the cross section of the air duct 25 is circular, and the diameter of the air duct 25 becomes larger to supply air to the cockpit, thereby providing a comfortable driving environment for the driver. In a preferred embodiment, the air outlet duct port 26 is divided into two portions, which are arranged on both sides of the top of the cockpit of the bus. The air duct 25 is divided into two portions, which are arranged on both sides of the Y-shaped pipe 14, so that the air supply is more uniform. The air outlet duct port 26 is provided with an opening and closing flap, which is connected to the driving assembly and can be used to adjust the air volume in the cockpit.

[0041] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mid-mounted bus air duct structure, characterized in that: include: An air conditioning assembly, the air conditioning assembly comprising a plurality of air supply ports arranged on the air conditioner and a Y-shaped pipe connecting the air supply ports; An air outlet component includes two air ducts, the air ducts are connected to the Y-shaped pipe, the air ducts are arranged on the top of the passenger compartment of the bus, a strip groove is arranged between the two air ducts, the cross-sections of the two air ducts are tightened downward and the corners are arc-shaped, and a plurality of air outlets are arranged at equal intervals on one side of the air duct away from the strip groove.

2. The mid-mounted bus air duct structure according to claim 1 is characterized in that: The air outlet assembly also includes an air duct and an air outlet connected to the air duct, the air duct is connected to the Y-shaped pipe, and the air outlet is arranged on the top of the cockpit of the bus.

3. The mid-mounted bus air duct structure according to claim 2 is characterized in that: The two air outlets are respectively arranged on both sides of the top of the driving cabin of the bus, and the two air ducts are respectively arranged on both sides of the Y-shaped pipe.

4. The mid-mounted bus air duct structure according to claim 1, characterized in that: A guide body is provided at the end of the air duct, and the guide body is an arc-shaped sheet and extends outwardly in accordance with the wind direction of the air duct.

5. The mid-mounted bus air duct structure according to claim 1, characterized in that: The air outlet assembly further includes a plurality of air outlet opening and closing flaps, and the air outlet opening and closing flaps are arranged on the air outlet; The air conditioning component also includes a plurality of air outlet opening and closing flaps, and the air outlet opening and closing flaps are arranged on the air outlet.

6. The mid-mounted bus air duct structure according to claim 1, characterized in that: Also includes: A driving assembly, electrically connected to the air outlet opening and closing flap and the air supply outlet opening and closing flap; A switch component is electrically connected to the air conditioner and the driving component.

7. The mid-mounted bus air duct structure according to claim 1, characterized in that: The strip groove is arranged at the middle of the top end of the passenger compartment of the bus, and the two air ducts are symmetrically arranged on both sides of the strip groove.

8. The mid-mounted bus air duct structure according to claim 7, characterized in that: A light strip is arranged on the strip groove.

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