Sealing structure, sealing assembly for air conditioner and metro vehicle air conditioning unit

A technology of sealing structure and sealing ring, applied in the field of air-conditioning system of rail transit vehicles, can solve the problems of difficult air tightness, wrinkled sealing ring, poor sealing performance, etc., and achieve the effect of strengthening sealing performance, preventing distortion and deformation, and easy assembly.

Pending Publication Date: 2022-02-25
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this application can solve the problem of poor sealing caused by the poor flatness of the bottom plate of the air-conditioning unit, but for the air-conditioning unit with end-sent and end-return structure, due to the angle between the sealing contact surface and the horizontal plane, the sealing ring will be damaged during installation. Wrinkles appear, resulting in the airtightness is still difficult to meet the standard

Method used

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  • Sealing structure, sealing assembly for air conditioner and metro vehicle air conditioning unit
  • Sealing structure, sealing assembly for air conditioner and metro vehicle air conditioning unit
  • Sealing structure, sealing assembly for air conditioner and metro vehicle air conditioning unit

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Experimental program
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Effect test

Embodiment 1

[0059] The sealing structure of the present embodiment includes:

[0060] a main body 1, which is a strip structure, and a hollow cavity 10 is formed in the main body 1;

[0061] a flange surface 2 formed on the bottom of the main body 1;

[0062] a sealing contact surface 3, which is formed on the top of the main body 1, and the sealing contact surface 3 is parallel to the flange surface 2;

[0063] The rubber strip 4 is fixed on the top surface of the sealing contact surface 3 .

[0064] For the end-supply and end-return air-conditioning unit structure, when installed in the urban rail vehicle body, the sealing strips at the air supply port and the air return port mainly play a sealing role through crimping. From the test verification of the existing sealing structure, The existing sealing structure and sealing method have partial air leakage, and the airtightness cannot meet the requirements. The main reasons are as follows: Due to the structural characteristics of the ai...

Embodiment 2

[0068] The sealing structure of this embodiment is further improved on the basis of Embodiment 1, and further includes a rigid plate 5 which is fixedly connected to the bottom surface of the sealing contact surface 3 .

[0069] like figure 2 and image 3 As shown, the rigid plate 5 of this embodiment can be made of rigid materials such as steel plates, and the rigid plate 5 is fixed on the bottom surface of the sealing contact surface 3, so as to ensure the flatness of the sealing contact surface 3 and effectively prevent wrinkles on the sealing contact surface 3 pleats, thereby ensuring that the rubber strip 4 is in effective contact with the vehicle body.

Embodiment 3

[0071] The sealing structure of this embodiment is further improved on the basis of Embodiment 2. The cross-sectional shape of the cavity 10 of the main body 1 is a tower structure with a width at the bottom greater than a width at the top.

[0072] like image 3 As shown, the cavity 10 of the main body 1 in this embodiment has a tower structure, which can effectively prevent the sealing end surface from twisting and deforming when it is installed with the vehicle body. The deformation can continuously increase the reverse supporting force of the end plane, so that the sealing surface in contact with the vehicle body can effectively achieve the sealing function.

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Abstract

The invention discloses a sealing structure, a sealing assembly for an air conditioner and a metro vehicle air conditioning unit, and belongs to the technical field of rail transit vehicle air conditioning systems. The sealing structure comprises a main body part, a flange surface, a sealing contact surface and a rubber strip; the main body part is of a strip-shaped structure, and a hollow cavity is formed in the main body part; the flange surface is formed at the bottom of the main body part; the sealing contact surface is formed at the top of the main body part, and the sealing contact surface is parallel to the flange surface; and the rubber strip is fixed on the top surface of the sealing contact surface. According to the sealing structure, under the condition that the deformation amount of the sealing structure is large in the connecting process, the main body part with the hollow cavity can meet a certain adjusting amount and can be matched with the sealing contact surface to effectively keep fit with the contact surface; and the rubber strip is adopted, under the deformation effect of compression joint and the sealing structure, the sealing performance of the sealing structure and a vehicle body can be further enhanced. The sealing structure has the advantages of being simple in structure, reasonable in design and easy to manufacture.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning systems for rail transit vehicles, and more specifically relates to a sealing structure, a sealing assembly for air-conditioning and an air-conditioning unit for subway vehicles. Background technique [0002] The sealing method of the existing end-feeding and end-returning air-conditioning unit is to directly crimp the front-end sealing strip on the profile surface of the vehicle body, which meets the speed requirements of the existing vehicle. [0003] As urban rail vehicles run faster and faster, to prevent the fluctuation of external pressure from affecting passengers' tinnitus and other uncomfortable phenomena in the passenger compartment, to improve the comfort of passengers and staff, higher requirements are put forward for the airtightness of vehicles. The test verifies that the sealing method of the existing structure cannot meet the airtightness requirements. [0004] After retr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10B61D27/00
CPCF16J15/102F16J15/104B61D27/009
Inventor 于海飞章义屠小娥叶超朱建华方永军杨华
Owner CRRC NANJING PUZHEN CO LTD
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