CN214728802U - Air conditioner air supply duct and rail transit vehicle - Google Patents

Abstract

The utility model discloses an air conditioner air supply air duct and rail transit vehicle, wherein baffle subassembly and baffle subassembly are adjustable structure, when the air supply volume increases, increase the inclination of baffle subassembly, make the first cavity front end widen, the first cavity rear end narrows down, thereby reduced the difference of different positions unit volume air supply air flow in the first cavity, reduced the difference between the unit volume air speed air flow of first cavity front end and first cavity rear end promptly, improved the air supply homogeneity; simultaneously, when the air supply volume increases, the air current in the first cavity is easier to flow to the rear end of the first cavity, the baffle plate assembly is moved to the front end of the first cavity, the air flow flowing to the rear end of the first cavity is reduced, the difference between the air flow of the unit volume of the front end of the first cavity and the air flow of the rear end of the first cavity is further reduced, and the air supply uniformity is further improved.

Description

Air conditioner air supply duct and rail transit vehicle

Technical Field

The utility model belongs to the technical field of vehicle air conditioner control, especially, relate to an air conditioner air supply wind channel and rail transit vehicle.

Background

With the rapid development of the rail transit field in China, the thermal comfort of train passenger rooms gets more and more attention and attention of passengers and owners. The indoor thermal comfort of the passenger room is closely related to the air supply uniformity of the air conditioner, and the air supply uniformity of the air conditioner determines key indexes such as temperature uniformity, air speed and humidity in the passenger room to a great extent, so that the optimization of the air supply uniformity of the air conditioner has important application significance, and the riding experience of passengers and the visual experience of product performance can be greatly improved.

At present, an air supply duct of an air conditioning system is the most critical factor influencing the air supply uniformity of a passenger room. Generally speaking, because of a long passenger room space of a railway vehicle, an air supply duct of an air conditioner usually comprises a dynamic pressure cavity and a static pressure cavity, wherein the dynamic pressure cavity mainly realizes the flowing and transportation of air flow organization in the air duct, meanwhile, the air flow organization in the dynamic pressure cavity also flows into the static pressure cavity, and the static pressure cavity mainly realizes the conveying of the air flow organization into the passenger room through an air outlet via the air duct. In order to achieve air supply uniformity of an air conditioner, in the design stage of an air conditioning system, the internal structure of an air duct needs to be optimally designed according to the air flow organization characteristic distribution of the air duct of the air conditioner. At present, in order to achieve air supply uniformity, when an air duct internal structure is optimally designed, the air duct internal structure design with better air supply uniformity is usually obtained through modes of simulation calculation, test debugging and the like in a design stage or an experimental stage.

In order to achieve air supply uniformity of the air duct under different air supply amounts and unit pressure heads, the design of the internal structure of the air duct needs to be adjusted according to the changes of parameters such as the air supply amount of the air conditioning system, the unit pressure heads and the like, namely, the final internal structure of the air duct determined under a certain air supply amount and unit pressure heads cannot be well adapted to the changes of the air supply amount of the air conditioning system and the unit pressure heads, so that the requirement on air supply uniformity cannot be met.

For example, in order to improve the comfort of the passenger compartment of the vehicle, the larger the passenger load, the larger the required air volume, the smaller the passenger load, the smaller the required air volume, and the air volume is changed according to the passenger load. When the air supply volume increases, dynamic pressure chamber entry (be the air intake), the wind-force increase in the dynamic pressure chamber, because dynamic pressure chamber keeps apart through the baffle with static pressure chamber, the air current of dynamic pressure intracavity more flows to dynamic pressure chamber rear end (the one end of keeping away from the air intake) this moment, make the wind speed airflow of dynamic pressure chamber rear end unit volume more for dynamic pressure chamber front end, cause dynamic pressure chamber front end (the one end that is close to the air intake) to flow into the air current in static pressure chamber by the dynamic pressure chamber and reduce, dynamic pressure chamber rear end is increased by the air current that the dynamic pressure chamber flows into the static pressure chamber, can not satisfy the air supply homogeneity requirement, the travelling comfort of vehicle guest room has been reduced. The existing design scheme of the internal fixed structure of the air duct cannot meet the requirement of keeping the air supply uniformity of the air duct when the refrigeration/heating quantity of an air conditioning system is frequently adjusted due to the fact that the principle and the implementation of the internal fixed structure of the air duct cannot meet the requirement of rail vehicles, particularly urban rail vehicles frequently change passenger capacity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air conditioner air supply wind channel and track transportation vehicle to solve the fixed change that can't adapt to the air conditioner air supply volume in current air supply wind channel inner structure, the air supply homogeneity is low.

The utility model discloses a solve above-mentioned technical problem through following technical scheme: an air supply duct of an air conditioner comprises a first chamber and a second chamber which are separated by a partition plate, an air inlet arranged at the front end of the first chamber, and at least one baffle assembly arranged in the first chamber and used for blocking air flow of air supply, wherein the baffle assembly is provided with an air penetration hole; the baffle plate assembly is adjustable in position; the baffle is a baffle component with an adjustable inclination angle;

the inclination angle refers to an included angle between the partition plate assembly and the length direction of the air supply duct.

In the utility model, the baffle plate assembly and the baffle plate assembly in the air supply duct are both adjustable structures, when the air supply quantity is increased, the inclination angle of the baffle plate assembly is increased, so that the front end of the first cavity is widened, and the rear end of the first cavity (namely, the end far away from the air inlet) is narrowed, thereby reducing the difference of unit volume air supply air flow at different positions in the first cavity, namely, reducing the difference between unit volume air speed and air flow at the front end of the first cavity and the rear end of the first cavity, and improving the air supply uniformity; simultaneously, when the air supply volume increases, the air current in the first cavity is easier to flow to the rear end of the first cavity, the baffle plate assembly is moved to the front end of the first cavity, the air flow flowing to the rear end of the first cavity is reduced, the difference between the air flow of the unit volume of the front end of the first cavity and the air flow of the rear end of the first cavity is further reduced, and the air supply uniformity is further improved.

Furthermore, the partition plate assembly comprises a partition plate arranged along the length direction of the air supply duct, first movable plates arranged at two ends of the partition plate, and a first adjusting mechanism arranged on the partition plate; the inclination angle of the partition plate is adjusted by rotation of the first adjustment mechanism.

When the air supply quantity is increased, the first adjusting mechanism rotates clockwise, the inclination angle of the partition plate is increased, and the front end of the first cavity is widened and the rear end of the first cavity is narrowed; when the air supply quantity is reduced, the first adjusting mechanism rotates anticlockwise, the inclination angle of the partition plate is reduced, and the front end of the first cavity is narrowed and the rear end of the first cavity is widened; in order to ensure that the two ends of the partition plate can always abut against the front end and the rear end of the air supply duct when the inclination angle is adjusted, the two ends of the partition plate are respectively provided with a first movable plate, and the length change of the partition plate required when the inclination angle is adjusted can be adapted through the first movable plates.

Furthermore, two ends of the partition board are respectively provided with a first groove, and a first spring is arranged in each first groove; the two ends of the partition plate are connected with the first movable plate through the first spring.

Further, the baffle plate assembly comprises a baffle plate arranged along the width direction of the first chamber, a second movable plate arranged at one end of the baffle plate close to the baffle plate assembly, and a second adjusting mechanism; the ventilation holes are formed in the baffle;

the output end of the second adjusting mechanism is connected with the baffle, and the position of the baffle in the first cavity is adjusted through the linear movement of the second adjusting mechanism.

When the air supply quantity is increased, the second adjusting mechanism moves to the front end of the first cavity in a straight line, so that the baffle plate approaches to the front end of the first cavity, and more air flow is blocked from flowing to the rear end of the first cavity; when the air supply quantity is reduced, the second adjusting mechanism moves linearly towards the rear end of the first cavity, so that the baffle is far away from the front end of the first cavity, and the blockage to the airflow flowing to the rear end of the first cavity is reduced; the baffle plate with the ventilation holes is arranged in the first cavity, so that excessive wind speed airflow can be effectively prevented from flowing from the front end of the first cavity to the rear end of the first cavity, and the difference of the wind speed airflow per unit volume of the front end and the rear end of the first cavity is reduced; the second movable plate can adapt to the width change of the first chamber when the baffle moves in position.

Furthermore, a second groove is formed in one end, close to the baffle plate assembly, of the baffle plate, a second spring is arranged in the second groove, and one end, close to the baffle plate assembly, of the baffle plate is connected with a second movable plate through the second spring.

Furthermore, the air conditioner air supply duct also comprises a plurality of ventilation assemblies which are arranged on the partition plate assembly and have a ventilation quantity adjusting function.

The baffle plate assembly is used for separating the first cavity from the second cavity, and the uniformity of the air supply flow flowing from the first cavity to the second cavity is the air supply uniformity of the air supply duct. On the basis of the ventilating window of the partition board assembly, the height of the ventilating window is adjusted, namely the ventilation quantity is adjusted; when the air supply quantity is increased, the height of the ventilation window at the front end of the partition plate is increased, and the height of the ventilation window at the rear end of the partition plate is reduced, namely the air flow quantity flowing into the second chamber from the front end of the first chamber is increased, and the air flow quantity flowing into the second chamber from the rear end of the first chamber is reduced; when the air supply volume reduces, reduce the height of the ventilation window of baffle front end, increase the height of the ventilation window of baffle rear end, reduce the airflow that first cavity front end flowed into the second cavity promptly, increase the airflow that first cavity rear end flowed into the second cavity, further realize air supply homogeneity and adjust.

Further, the ventilation assembly comprises at least one ventilation window, a movable adjusting plate arranged on each ventilation window and a third adjusting mechanism; the output end of the third adjusting mechanism is connected with the adjusting plate on each ventilating window, and the adjusting plates are driven to move up and down through the up-down movement of the third adjusting mechanism, so that the opening height of the ventilating windows is adjusted, and the ventilation quantity is adjusted.

The utility model also provides a rail transit vehicle, include as above the air conditioner air supply wind channel.

Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model discloses the specific air supply volume that can only correspond under certain passenger-carrying operating mode when having avoided air conditioning system air supply homogeneity to optimize among the traditional approach, the utility model discloses according to the inclination of air supply volume adjusting partition board subassembly and the position of baffle subassembly in first cavity, reduced the difference of unit volume airflow in the first cavity as far as possible, realized whatever kind of passenger-carrying volume and air supply homogeneity under the air supply volume operating mode, improved the adaptability of air supply homogeneity, improved passenger's travelling comfort.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an air supply duct of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a baffle plate assembly according to an embodiment of the present invention;

the air inlet structure comprises 100 parts of an air supply duct, 110 parts of a second chamber, 120 parts of a first chamber, 130 parts of a partition plate, 131 parts of a first adjusting mechanism, 132 parts of a first movable plate, 133 parts of a support, 140 parts of a baffle, 141 parts of a second adjusting mechanism, 142 parts of a ventilation hole, 143 parts of a second movable plate, 150 parts of a ventilation window, 151 parts of an adjusting plate, 152 parts of a third adjusting mechanism and 160 parts of an air inlet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the air-conditioning supply duct 100 provided in this embodiment includes a first chamber 120 and a second chamber 110 separated by a partition assembly, a plurality of ventilation assemblies provided on the partition assembly and having ventilation volume adjusting function, and two baffle assemblies provided in the first chamber 120 and having adjustable positions; the baffle plate assembly has the function of adjusting the inclination angle, and the baffle plate assembly is used for blocking the air supply airflow from flowing from the front end of the first cavity to the rear end of the first cavity. The front end of the first chamber is an end close to the air inlet 160, and the rear end of the first chamber is an end far away from the air inlet 160.

The air inlet 160 is located on the first chamber 120, the air outlet of the air supply duct 100 is located on the second chamber 110, one end close to the air inlet 160 is the front end of the air supply duct 100 or the front end of the first chamber 120, and one end far away from the air inlet 160 is the rear end of the air supply duct 100 or the rear end of the first chamber 120; the direction of the supply airflow flowing into the first chamber 120 from the air inlet 160 is the length direction of the supply air duct 100 or the length direction of the first chamber 120, and the direction of the supply airflow flowing into the second chamber 110 from the first chamber 120 is the width direction of the supply air duct 100 or the width direction of the first chamber 120.

The partition assembly has the function of adjusting the inclination angle, and comprises a partition 130 arranged along the length direction of the air supply duct 100, first movable plates 132 arranged at two ends of the partition 130, and a first adjusting mechanism 131 arranged in the middle of the partition 130; the inclination angle of the partition 130 is adjusted by the rotation of the first adjustment mechanism 131. The inclination angle is the angle between the partition 130 and the horizontal line or the length direction of the air duct 100.

As shown in fig. 2, a support post 133 is provided at the middle of the partition 130, and the partition 130 is rotatably provided on the air supply duct 100 via the support post 133. In this embodiment, the first adjusting mechanism 131 may be a servo motor, a stepping motor, or a steering engine, the first adjusting mechanism 131 is controlled by a control module, an output end of the first adjusting mechanism 131 is connected to a support post 133 on the partition plate 130, and when the first adjusting mechanism 131 rotates, the partition plate 130 rotates around the support post 133, so as to change an inclination angle of the partition plate 130, and thus adjust the widths of the front end and the rear end of the first chamber 120. For example, when the amount of air supplied increases, the first adjustment mechanism 131 rotates clockwise, the inclination angle of the partition 130 increases, the front width of the first chamber 120 increases, the rear width of the first chamber 120 decreases, so that the air speed airflow flowing into the rear end of the first chamber 120 decreases, the air speed airflow staying at the front end of the first chamber 120 increases, the difference between the air speed airflows at the front end of the first chamber 120 and the rear end of the first chamber 120 per unit volume decreases, and adjusting the inclination angle according to the amount of air supplied facilitates the air speed airflow to flow more uniformly from the first chamber 120 into the second chamber 110.

In order to ensure that the two ends of the partition 130 can always abut against the front end and the rear end of the air supply duct 100 when the inclination angle of the partition 130 is adjusted, and to prevent air flow from flowing into the second chamber 110 from the two ends of the partition 130, the two ends of the partition 130 are both provided with the first movable plates 132; two ends of the partition 130 are both provided with first grooves, and first springs are arranged in the first grooves; both ends of the partition 130 are connected to the first movable plate 132 by the first spring. One end of the first movable plate 132 is located in the first groove, the other end of the first movable plate is abutted against the front end of the air supply duct 100 or the rear end of the air supply duct 100, the depth of the first groove is set according to the requirement of length change of the partition plate 130 during the adjustment of the inclination angle, so that one end of the first movable plate 132 is always located in the first groove during the adjustment of the inclination angle, and the condition that the first movable plate 132 is separated from the first groove to cause the air speed airflow to flow into the second cavity 110 through the opening at the separation position is avoided.

As shown in fig. 1, the baffle plate assembly includes a baffle plate 140 disposed along the width direction of the first chamber 120, a second movable plate 143 disposed at one end of the baffle plate 140 near the partition 130, and a second adjusting mechanism 141, wherein a plurality of ventilation holes 142 are disposed on the baffle plate 140 to facilitate the air flow of the wind speed flowing into the rear end of the first chamber 120 through the ventilation holes 142; the output of the second adjustment mechanism 141 is connected to the baffle 140, and the second adjustment mechanism 141 is controlled by the control module. Under the adjustment of the second adjustment mechanism 141, the baffle 140 moves back and forth in the first chamber 120 along the length direction of the first chamber 120, thereby adjusting the position of the baffle 140 in the first chamber 120.

In this embodiment, the second adjusting mechanism 141 may be a linear motor, a servo motor coupled with a lead screw or a guide rail, or a stepping motor coupled with a lead screw or a guide rail. When the second adjusting mechanism 141 is a linear motor, the output end of the linear motor is directly connected to the baffle 140, or the output end of the linear motor is connected to the baffle 140 through a connecting rod, and the linear motor moves linearly along the length direction of the first chamber 120 under the control of the control module, so as to drive the baffle 140 to move linearly along the length direction of the first chamber 120, thereby adjusting the position of the baffle 140 in the first chamber 120. For example, when the amount of air supplied increases, the control baffle 140 moves toward the air inlet 160, and the air speed airflow can only flow into the rear end through the ventilation holes 142 of the baffle 140, so that the air speed airflow flowing into the rear end of the first chamber 120 is reduced when the amount of air supplied increases, the air speed airflow staying at the front end of the first chamber 120 is increased, the difference between the air speed airflows at the front end of the first chamber 120 and the rear end of the first chamber 120 per unit volume is reduced, and the position of the baffle 140 in the first chamber 120 is adjusted according to the amount of air supplied, so that the air speed airflow can flow more uniformly from the first chamber 120 into the second chamber 110.

When the second adjusting mechanism 141 is a servo motor or a stepping motor + a screw rod pair, an output end of the servo motor is connected with one end of the screw rod pair, the other end of the screw rod pair is connected with the baffle 140, the servo motor rotates under the control of the control unit, the other end of the screw rod pair linearly moves along the length direction of the first chamber 120 under the rotation of the servo motor, the baffle 140 is driven to linearly move along the length direction of the first chamber 120, and therefore the position of the baffle 140 in the first chamber 120 is adjusted.

In order to ensure that when the position of the baffle 140 is adjusted, one end of the baffle 140 close to the partition 130 can always adapt to the width change of the first chamber 120 (when the inclination angle is not zero), so as to avoid the wind speed airflow from flowing into the rear end of the first chamber 120 from between the baffle 140 and the partition 130, a second groove is arranged at one end of the baffle 140 close to the partition 130, a second spring is arranged in the second groove, and one end of the baffle 140 close to the partition 130 is connected with the second movable plate 143 through the second spring. One end of the second movable plate 143 is located in the second groove, the other end of the second movable plate is abutted against the partition 130, and the depth of the second groove is set according to the requirement for width change of the first chamber 120, so that it is ensured that one end of the second movable plate 143 is always located in the second groove in the position adjustment process of the baffle 140, and it is avoided that the second movable plate 143 is separated from the second groove to cause the air velocity airflow to flow into the rear end of the first chamber 120 through the opening of the separation position.

As shown in fig. 2, a plurality of ventilation assemblies are provided on the partition 130, each ventilation assembly including at least one ventilation window 150, an adjustment plate 151 provided on each ventilation window 150 and movable, and a third adjustment mechanism 152; the output end of the third adjusting mechanism 152 is connected with the adjusting plate 151 corresponding to the ventilation assembly, and the adjusting plate 151 is driven to move up and down by the up-and-down movement of the third adjusting mechanism 152, so that the height of the opening of the ventilation window 150 is adjusted, and the ventilation amount is adjusted.

In this embodiment, the third adjusting mechanism 152 may be a linear motor, a servo motor cooperating with a lead screw or a guide rail, or a stepping motor cooperating with a lead screw or a guide rail, and the adjusting principle of the third adjusting mechanism 152 is similar to that of the second adjusting mechanism 141. The adjusting plate 151 is disposed on the ventilation window 150 through a sliding slot or a sliding rail, and under the adjustment of the third adjusting mechanism 152, the adjusting plate 151 can move up and down along the sliding slot or the sliding rail, so as to adjust the opening height of the ventilation window 150, and thus adjust the amount of the wind speed and the airflow flowing from the first chamber 120 into the second chamber 110. From a cost perspective, a third adjustment mechanism 152 may adjust a plurality of louvers 150 in the vent assembly, such that each vent assembly may include two, three, or even four, five louvers 150; from the standpoint of adjustment accuracy, a third adjustment mechanism 152 adjusts one louver 150 correspondingly, and therefore each ventilation assembly includes one louver 150. The number of louvers 150 in the ventilation assembly may be considered in combination with cost and adjustment accuracy.

At least one ventilation window 150 in the plurality of ventilation assemblies is uniformly distributed on the partition plate 130 along the length direction of the partition plate 130, and on the basis of the inclination angle adjustment of the partition plate 130 and the position adjustment of the baffle plate 140, the opening heights of the ventilation windows 150 at different positions of the partition plate 130 are adjusted, so that the air speed and the air current uniformly flow into the second chamber 110 from the first chamber 120, and the air supply uniformity adjustment is realized. For example, when the amount of air supplied increases, the height of the opening of louver 150 near the front end of air supply duct 100 is controlled to increase, and the height of the opening of louver 150 near the rear end of air supply duct 100 is controlled to decrease, so that the air velocity flow flowing into second chamber 110 through louver 150 near the front end of air supply duct 100 increases, and the air velocity flow flowing into second chamber 110 through louver 150 near the rear end of air supply duct 100 decreases, thereby improving the uniformity of the air velocity flow flowing from first chamber 120 into second chamber 110.

In this embodiment, the control module may be a single chip microcomputer, a PLC controller, or a microprocessor, and the control module may also be a control unit in the air conditioner control system. The control module controls a linear motor, a servo motor, a stepping motor or a steering engine in the prior art, such as patent document with publication number CN207000465U, named static pressure type air duct with adjustable air volume and a vehicle air conditioning system, and patent document with publication number CN109606856A, named a device for automatically adjusting width. As the prior art, the air supply amount is adjusted according to the passenger capacity, refer to the patent document with the publication number of CN111284514A entitled air supply assembly of air conditioner for rail transit and cooling/heating method.

The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or modifications within the technical scope of the present invention, and all should be covered by the scope of the present invention.

Claims (8)

1. An air conditioner air supply duct comprises a first chamber and a second chamber which are separated by a partition plate, and an air inlet arranged at the front end of the first chamber, and is characterized in that:

the air-permeable baffle plate assembly is arranged in the first cavity and used for blocking air supply airflow, and an air permeable hole is formed in the baffle plate assembly; the baffle plate assembly is adjustable in position; the baffle is a baffle component with an adjustable inclination angle;

the inclination angle refers to an included angle between the partition plate assembly and the length direction of the air supply duct.

2. The air conditioning supply air duct of claim 1, characterized in that: the partition plate assembly comprises a partition plate arranged along the length direction of the air supply duct, first movable plates arranged at two ends of the partition plate, and a first adjusting mechanism arranged on the partition plate.

3. The air conditioning supply air duct of claim 2, characterized in that: two ends of the partition board are respectively provided with a first groove, and a first spring is arranged in each first groove; the two ends of the partition plate are connected with the first movable plate through the first spring.

4. The air conditioning supply air duct of claim 1, characterized in that: the baffle plate assembly comprises a baffle plate arranged along the width direction of the first chamber, a second movable plate arranged at one end of the baffle plate close to the baffle plate assembly and a second adjusting mechanism; the ventilation holes are formed in the baffle;

and the output end of the second adjusting mechanism is connected with the baffle.

5. The air conditioning supply air duct of claim 4, characterized in that: a second groove is formed in one end, close to the baffle plate assembly, of the baffle plate, a second spring is arranged in the second groove, and one end, close to the baffle plate assembly, of the baffle plate is connected with a second movable plate through the second spring.

6. An air-conditioning air supply duct according to any one of claims 1 to 5, characterized in that: still include a plurality of locate on the baffle subassembly and have ventilation volume regulatory function's ventilation subassembly.

7. The air conditioning supply air duct of claim 6, characterized in that: the ventilation assembly comprises at least one ventilation window, a movable adjusting plate and a third adjusting mechanism, wherein the adjusting plate is arranged on each ventilation window; and the output end of the third adjusting mechanism is connected with an adjusting plate on each ventilation window.

8. A rail transit vehicle characterized by: the air conditioner air supply duct comprises the air conditioner air supply duct as defined in any one of claims 1 to 7.

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