CN212022642U

CN212022642U - Air conditioner air distribution box

Info

Publication number: CN212022642U
Application number: CN202020512931.0U
Authority: CN
Inventors: 刘智远; 毛业军; 陈平安; 杨天智; 吕知梅; 肖云华; 李行
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-11-27
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses an air conditioner wind distributor box, the power distribution box comprises a box body, set up supply-air outlet (5) and a plurality of air outlet on the box, upright be equipped with the polylith baffle below the supply-air outlet, and the polylith baffle will at least three interval is separated into to the inner chamber of box, all sets up guide plate (202) in every interval, and the both sides of guide plate or one side set up expansion plate (208), and every interval top sets up apron (209), and each interval guide plate, expansion plate, apron and baffle enclose to establish the gas flow way that forms the bore and expand gradually, and each gas flow way communicates respectively the air outlet. The utility model can not only distribute the air quantity to the upper and lower passenger rooms and the middle layer; meanwhile, the noise of the air conditioner and the air duct can be reduced, and the riding comfort of passengers in a passenger room is improved.

Description

Air conditioner air distribution box

Technical Field

The utility model relates to a double-deck EMUs are with air conditioner wind channel, especially an air conditioner wind distributor box.

Background

The air-conditioning air duct is used as a main part of the double-layer motor train unit, the riding comfort of passengers in upper and lower passenger rooms is influenced, and the air supply uniformity and the noise of the air-conditioning air duct are related to the quality and the performance of the whole motor train unit.

Because the double-layer motor train unit has a special structure, the passenger room has an upper-layer structure and a lower-layer structure, parts are crowded, so that the interference in the air-conditioning air duct is more, and the design difficulty of the air-conditioning air duct is very high. How to rationally design air conditioner wind channel structure to guarantee under limited space, can satisfy air conditioner wind channel air supply homogeneity, can reduce the size of air conditioning unit and wind channel aerodynamic noise again, be a difficult problem before research and development designer.

In the design of the air-conditioning duct structure, the design of the distribution box is an important part because if the structure is not designed reasonably, great noise is generated in the distribution box, which affects the riding comfort of a passenger room.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, to current double-deck EMUs air conditioner wind channel air supply homogeneity not good enough, provide an air conditioner wind distributor box that can noise abatement as far as possible.

For solving the technical problem, the utility model provides an air conditioner wind distributor box, the power distribution box comprises a box body, set up supply-air outlet and a plurality of air outlet on the box, upright be equipped with the polylith baffle below the supply-air outlet, and the polylith baffle will at least three interval is separated into to the inner chamber of box, all sets up the guide plate in every interval, and both sides or one side of guide plate set up the expand board, and every interval top sets up the apron, and each interval guide plate, expand board, apron and baffle enclose to establish the gas flow way that forms the bore and expand gradually, and each gas flow way communicates respectively the air outlet.

In order to meet the air volume requirements of upper and lower passenger rooms, middle layers (passageways) and door areas of a double-layer motor train unit, the distribution box of the utility model is vertically provided with a plurality of partition plates below the air supply outlet, so that the inner cavity of the distribution box is divided into at least three sections according to the flow requirement of the air duct connected with the air outlet; considering that the internal structure of the distribution box is complex, in order to avoid vortex noise generated by vortex in the distribution box, the guide plate is arranged in each interval, and the pressure expansion plates are arranged on two sides or one side of the guide plate, so that a streamline gas flow passage with gradually expanded caliber is formed in each interval, and air conditioner air flows more smoothly in the gas flow passage in a streamline shape after entering each gas flow passage from the air supply opening, thereby avoiding vortex, reducing vortex noise, greatly reducing passenger room noise and improving the riding comfort of passengers in the passenger room.

In order to further reduce the noise transmitted by the air conditioning unit and the airflow noise, the non-gas flow passage area in the interval is provided with a silencing cavity filled with silencing materials.

The side wall plate of the silencing cavity is of a micro perforated plate structure.

The guide plate adopts a micro-perforated plate structure.

The leeward side of the guide plate is pasted with sound-absorbing cotton.

The guide plate is an arc-shaped guide plate, so that the gas flow channels form streamline gas flow channels, and the flow guide of each gas flow channel from the air supply outlet to the air outlet from top to bottom is realized.

An air conditioning unit is arranged above the air supply outlet, and an air valve used for adjusting the air supply volume of the upper, middle and lower air ducts is arranged in the air conditioning unit.

Compared with the prior art, the utility model discloses double-deck EMUs are with air conditioner wind distributor box has following beneficial effect:

the utility model distributes the air quantity to the upper and lower passenger rooms and the middle layer through the baffle plate and the guide plate; meanwhile, the partition plate and the guide plate are dense micro-perforated plates, and sound-absorbing cotton is attached to the back of the partition plate and the guide plate, so that the noise of an air conditioner and an air duct can be reduced, and the riding comfort of passengers in a passenger room is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of an air-conditioning duct of a double-layer motor train unit according to the present invention;

FIG. 2 is a schematic view showing the size change of the air outlet of each air duct according to the present invention;

FIG. 3 is a schematic perspective view of the distribution box of the present invention;

fig. 4 is a top view structural diagram of the distribution box of the present invention with the top cover plate removed.

In the figure: 1-upper-layer upper air duct, 2-distribution box, 3-first upper air supply duct, 4-second upper air supply duct, 5-air supply outlet, 6-air return inlet, 7-middle air supply duct, 8-middle-layer air duct, 9-lower air supply duct, 10-upper-layer lower air duct, 11-lower-layer upper air duct, 12-lower-layer lower air duct, 13-first door zone air duct, 14-second door zone air duct, 111-a first air outlet, 112-a second air outlet, 113-a third air outlet, 114-a transition air duct, 201-a clapboard, 202-a guide plate, 203-a first air outlet, 204-a second air outlet, 205-a third air outlet, 206-a fourth air outlet, 207-a mounting seat, 208-a diffusion plate, 209-a cover plate and 211-a silencing cavity.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.

As shown in fig. 1-4, an embodiment of the air conditioning duct for double-deck EMUs of the present invention includes an upper duct installed in an upper passenger compartment, a lower duct installed in a lower passenger compartment, a middle duct 8 installed in a passageway area, and a door area duct installed near a door.

The upper air duct comprises an upper air duct 1 and an upper lower air duct 10, the lower air duct comprises a lower upper air duct 11 and a lower air duct 12, the door area air duct comprises a first door area air duct 13 and a second door area air duct 14 which are arranged on two sides of the door frame, and the upper air duct 1, the upper lower air duct 10, the middle air duct 8, the lower air duct 11, the lower air duct 12, the first door area air duct 13 and the second door area air duct 14 are respectively connected with an air supply opening of the air conditioning unit through a distribution box 2.

Air outlet holes

111, 112 and 113 are uniformly distributed on the upper layer upper air duct 1, the upper layer lower air duct 10, the middle layer air duct 8, the lower layer upper air duct 11, the lower layer lower air duct 12, the first door zone air duct 13 and the second door zone air duct 14, and the calibers of the air outlet holes are gradually reduced from the air inlet of the air duct to the air inlet of the air duct far away. For example, in this embodiment, the air conditioning units are installed at two ends of the motor train unit, and the air outlet apertures of the upper-layer lower duct 10, the lower-layer upper duct 11 and the lower-layer lower duct 12 are different in aperture, and the basic rule is that the air outlet apertures at two ends of the air duct are large in area and the air outlet apertures closer to the middle position of the air duct are smaller in area, so as to ensure the air supply uniformity of the air duct, and thus the temperature uniformity of the passenger room.

The upper-layer upper air duct 1 is a combined air duct, an arc-shaped top cover of a motor train unit body is used as an air duct top plate, a middle top plate arranged in the motor train unit is used as an air duct bottom plate, and sealing plates at two ends enclose an air duct sealing cavity; in addition, the lower part of the air duct top plate is pasted with high-performance heat preservation cotton so as to avoid excessive energy loss.

The upper layer upper air duct 1 is internally provided with longitudinal reinforcing ribs of the vehicle body to increase the structural strength, and the reinforcing ribs are provided with through holes to ensure the mutual circulation of air in the air duct. The through hole is preferably a kidney-shaped hole. In order to ensure the uniformity of air supply of the passenger room and also consider the aesthetic property of the built-in design, the air duct bottom plate is of a pore plate structure.

For the convenience of maintenance and overhaul, the upper-layer lower air duct 10, the lower-layer upper air duct 11 and the lower-layer lower air duct 12 are respectively composed of a left air duct and a right air duct, and are connected through a transition air duct 114.

The top of the distribution box 2 is provided with an air supply outlet 5, and the periphery of the distribution box is provided with a first air outlet 203, a second air outlet 204, a third air outlet 205 and a fourth air outlet 206. A plurality of partition plates 201 are vertically arranged below the air supply opening 5, and the inner cavity of the distribution box 2 is divided into three intervals by the partition plates 201, so that the air supply ratio of the upper layer air duct, the middle layer air duct and the lower layer air duct is distributed by the partition plates 201. The bottom of each interval is provided with a guide plate 202, two sides or one side of the guide plate 202 are provided with pressure-expanding plates 208, so that airflow in each interval flows more smoothly, eddy noise is reduced, the top of each interval is provided with a cover plate 209, the guide plate 202, the pressure-expanding plates 208, the cover plate 209 and the corresponding partition plate 201 in each interval jointly enclose to form a gas flow channel with gradually-expanded caliber, and each gas flow channel is respectively communicated with the first air outlet 203, the second air outlet 203, the third air outlet 204, the fourth air outlet 205 and the fourth air outlet 206 on the distribution box 2.

In addition, the non-gas flow path region of each section in the distribution box 2 is configured as a sound-deadening chamber 211 filled with sound-deadening material, and the side wall of each sound-deadening chamber 211 is of a dense micro-porous plate structure to promote the absorption of air flow and air conditioning noise.

A first air outlet 203 and a second air outlet 204 of the distribution box 2 are connected with an upper-layer upper air duct 1 through a first upper air supply duct 3 and a second upper air supply duct 4 to supply air for the upper-layer upper air duct 1; the third air outlet 205 is connected with an upper-layer lower air duct 10, a lower-layer upper air duct 11, a lower-layer lower air duct 12, a first door-area air duct 13 and a second door-area air duct 14 through a lower air supply duct 9; the fourth air outlet 206 is connected to the middle air duct 8 through the middle air supply duct 7. The upper-layer upper air duct 1 and the upper-layer lower air duct 10 supply air for an upper-layer passenger room of the motor train unit; the lower-layer upper air duct 11 and the lower-layer lower air duct 12 supply air to a lower-layer passenger room of the motor train unit; the middle-layer air duct 8 supplies air to the aisle of the motor train unit; the first door zone air duct 13 and the second door zone air duct 14 supply air near the door zones.

The utility model discloses during the use, air conditioning unit's air supply distributes to upper wind channel through the blast gate and the distributor box 2 of installing in air conditioning unit, lower floor's wind channel and middle level wind channel, door district wind channel, adjust double-deck EMUs on, the temperature of lower floor's guest room, and design differs through the exhaust vent bore in each wind channel, guarantee guest room temperature homogeneity, structure of making an uproar (guide plate, expand the clamp plate, the amortization chamber etc.) and each wind channel provide a low noise environment for the guest room through falling in the distributor box 2 simultaneously, guest room passenger's riding comfort has greatly been promoted.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. The utility model provides an air conditioner air distributor box, includes the box, set up supply-air outlet (5) and a plurality of air outlet on the box, its characterized in that, the below of supply-air outlet is upright to be equipped with the polylith baffle, and the polylith baffle will the at least three interval is separated into to the inner chamber of box, all sets up guide plate (202) in every interval, and the both sides of guide plate or one side set up expand clamp plate (208), and every interval top sets up apron (209), and each interval guide plate, expand clamp plate, apron and baffle enclose to establish the gas flow way that forms the bore and expand gradually, and each gas flow way communicates respectively the air outlet.

2. An air-conditioning air distribution box according to claim 1, wherein the non-gas flow passage area in said section is provided as a sound-deadening chamber (211) filled with a sound-deadening material.

3. An air-conditioning air distribution box according to claim 2, wherein the side wall panel of said muffling chamber is of microperforated panel construction.

4. An air conditioning air distribution box according to claim 1, wherein said baffle is of microperforated plate construction.

5. An air conditioning air distribution box according to claim 1, wherein the leeward side of said baffle is coated with sound absorbing cotton.

6. An air conditioning air distribution box according to claim 1, wherein said baffle is an arcuate baffle, such that said air flow passages form a streamlined air flow passage.

7. An air conditioning distribution box according to claim 1, wherein an air conditioning unit is installed above the air supply outlet, and air valves for adjusting the air supply amounts of the upper, middle and lower air ducts are installed inside the air conditioning unit.