CN210003424U

CN210003424U - carbon tank connecting pipeline with silencer

Info

Publication number: CN210003424U
Application number: CN201920622706.XU
Authority: CN
Inventors: 费章军
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-31
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses an carbon tank connecting line with muffler, carbon tank connecting line includes carbon tank solenoid valve and muffler, the muffler is located on the connecting pipeline between carbon tank solenoid valve and the carbon tank, the muffler has the shell of cavity including inside, install the acoustical panel on the inner wall of shell, the acoustical panel is provided with a plurality of perforation, the acoustical panel adopts rubber to make, the shell is square box-shaped body structure, and its both ends are equipped with quick-operation joint respectively, and wherein quick-operation joints pass through the connecting pipe with the carbon tank solenoid valve and be connected, and quick-operation joints pass through the connecting pipe with the carbon tank in addition and be connected, the utility model provides an attenuation is carried out pressure pulse to the acoustical panel, and the cavity in the shell attenuates and steady voltage to pressure pulse, can fundamentally solve carbon tank solenoid valve switching and arouse the pulse and the sound of pounding that leads to, brings comfortable environment of taking for passenger and driver.

Description

carbon tank connecting pipeline with silencer

Technical Field

The utility model relates to an kind of car connecting line especially relates to carbon tank connecting line with muffler belongs to car pipeline part technical field.

Background

In order to relieve the deterioration of the climate environment, Euro-sixth and national-sixth emission regulations are internationally implemented on vehicles, in order to meet the emission requirements of the national-sixth regulations, the desorption flow of a carbon tank electromagnetic valve is increased, the carbon tank electromagnetic valve is in desorption, an engine adsorbs oil vapor in a carbon tank into the engine for combustion through negative pressure, the carbon tank electromagnetic valve controls the amount of air sucked with the oil vapor through opening and closing opening and time, in the process, an air flow pressure pulse is generated by a valve body under the opening and closing frequency of , the air flow pulse impacts an electromagnetic valve membrane to generate knocking sound, the knocking sound is transmitted into a cab through a pipeline transmission path, and the knocking sound brings uncomfortable feeling to passengers and influences the comfort of the whole vehicle.

The silencer is kind of devices which allow airflow to pass through but can prevent or reduce sound transmission, and is an important measure for eliminating aerodynamic noise.

SUMMERY OF THE UTILITY MODEL

The utility model provides carbon tank connecting pipelines with silencers, in particular,

the silencer is arranged on a connecting pipeline between the carbon tank electromagnetic valve and the carbon tank, the silencer comprises a shell with a cavity inside, a silencing plate is installed on the inner wall of the shell, and a plurality of through holes are formed in the silencing plate.

, the sound-absorbing plate is made of rubber and is arranged in the middle of the cavity to divide the cavity into two communicated cavities.

Preferably, the sound-absorbing plate is made of HNBR (hydrogenated nitrile butadiene rubber).

, the thickness of the silencing plate is 1.5-2.5 mm.

, the Shore hardness of the sound-absorbing plate is 45-55 HD.

, the through holes on the sound-absorbing plate are circular holes with the diameter of 2-4 mm, and the through holes are distributed in a circular radial manner from the center of the sound-absorbing plate along the radial direction of the sound-absorbing plate.

, the housing is a square box structure to facilitate mounting and fixing of the silencer.

, quick connectors are respectively arranged at two ends of the shell, wherein quick connectors are connected with the carbon tank electromagnetic valve through connecting pipes, and quick connectors are connected with the carbon tank through connecting pipes.

, the center lines of the quick connectors at the two ends of the casing are not in the same line to prevent the muffler from rotating.

, the sum of the diameters of the holes on the silencing plate is greater than or equal to 2 times the diameter of the connecting pipe.

, sealing rings are arranged on the quick connectors at the two ends of the shell, and the quick connectors are in sealing contact with the connecting pipe.

, the shell is divided into a left shell and a right shell, and the left shell and the right shell are connected into a body through welding;

specifically, the left and right cases are welded by laser or friction welding by vibration.

, an annular step is arranged on the inner wall of the joint of the left shell and the right shell, and the sound-absorbing plate is abutted against the annular step.

, a positioning column is arranged on the annular step, and a positioning hole corresponding to the positioning column is arranged on the sound absorption plate.

, the silencer is arranged between the canister solenoid valve and the canister, and the closer the silencer is to the canister solenoid valve, the better the requirement of space arrangement is satisfied.

The utility model discloses a carbon tank connecting line with muffler can fundamentally solve carbon tank solenoid valve switching and arouse the pulse and the sound of knocking that leads to, and cavity in the muffler can attenuate and steady voltage pressure pulse, and the acoustical panel adopts the HNBR diaphragm can advance steps and attenuate pressure pulse.

Drawings

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

FIG. 1 is a schematic structural diagram of carbon canister connection piping with a silencer according to the present invention;

FIG. 2 is a schematic external view of kinds of silencers according to the present invention;

FIG. 3 is a schematic view of the right housing of the mufflers of the present invention;

FIG. 4 is a schematic view of the assembly of the silencer and the right housing of the present invention;

fig. 5 is a schematic view of the structure of the left casing of kinds of silencers according to the present invention;

fig. 6 is an exploded schematic view of mufflers in the present invention;

fig. 7 is a schematic structural diagram of the sound attenuation plate in the present invention.

In the figure: carbon canister 1, solenoid valve 2, muffler 3, connecting pipe 4, shell 31, acoustical panel 32, quick-operation joint 310, left casing 311, right casing 312, annular step 313, reference column 3130, locating hole 320, sealing washer 3101.

Detailed Description

In order to make the technical solution of the present invention better understood, the following description of the embodiments of the present invention will be made with reference to the accompanying drawings, wherein the embodiments of the present invention are described clearly and completely, and it is obvious that the described embodiments are only the embodiments of part of the present invention, rather than the whole embodiments.

In the following description, for clarity and conciseness of description, not all of the various components shown in the figures are described. The various components shown in the figures provide those skilled in the art with a fully enabled disclosure of the invention. The operation of many of the components is familiar and obvious to those skilled in the art.

Example (b):

as shown in fig. 1, the present embodiment provides canister connecting lines with a silencer, which include a canister 1, a canister solenoid valve 2, a silencer 3, and a connecting pipe 4, specifically:

silencer 3 is located on the connecting pipeline between carbon canister solenoid valve 2 and carbon canister 1, silencer 3 includes that inside has the shell 31 of cavity, install acoustical panel 32 on the inner wall of shell 31, be provided with a plurality of perforation on the acoustical panel 32.

, the sound-absorbing panel 32 is made of rubber, wherein, is preferred, the sound-absorbing panel 32 is made of HNBR rubber membrane.

Specifically, the thickness of the rubber diaphragm is 2 mm.

, the housing 31 is a square box-like structure for ease of installation and fixation.

, quick connectors 310 are respectively provided at both ends of the housing 31, wherein quick connectors 310 are connected to the canister solenoid valve 2 through a connection pipe 4, and quick connectors 310 are connected to the canister 1 through a connection pipe 4.

Specifically, in order to prevent rotation and better noise reduction, the center lines of the quick connectors 310 at the two ends of the housing 31 are not on the same line .

, sealing rings 3101 are provided on the quick connectors 310 at the two ends of the housing 31, and the quick connectors 310 are connected with the connecting pipe 4 in a sealing manner.

, the housing 31 is divided into a left shell 311 and a right shell 312, and the left shell 311 and the right shell 312 are connected by welding to form a body.

As preferable embodiments, the left case 311 and the right case 312 are connected into bodies by laser welding or vibration friction welding.

, an annular step 313 is arranged on the inner wall of the joint of the left shell 311 and the right shell 312, and the sound-absorbing plate 32 is in contact with the annular step 313.

Specifically, a positioning post 3130 is disposed on the annular step 313, a positioning hole 320 corresponding to the positioning post 3130 is disposed on the sound-absorbing plate 32, and the positioning post 3130 and the positioning hole 320 are correspondingly matched to fix the sound-absorbing plate 32 on the inner wall of the cavity of the housing 31.

step by step, muffler 3 sets up and is close to carbon canister solenoid valve 2 position department on the connecting line between carbon canister solenoid valve 2 and carbon canister 1, and the effect is better apart from carbon canister solenoid valve 2 more closely under satisfying the spatial arrangement demand.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

The carbon tank connecting pipeline with the silencer comprises a carbon tank electromagnetic valve (2) and the silencer (3), and is characterized in that the silencer (3) is arranged on a connecting pipeline between the carbon tank electromagnetic valve (2) and the carbon tank (1), the silencer (3) comprises a shell (31) with a cavity inside, a silencing plate (32) is installed on the inner wall of the shell (31), and a plurality of through holes are formed in the silencing plate (32).
2. The canister connection line with muffler according to claim 1, wherein: the sound-absorbing plate (32) is made of rubber.
3. The canister connection line with muffler according to claim 2, wherein: the thickness of the sound-absorbing plate (32) is set to be 1.5mm-2.5 mm.
4. The canister connection line with muffler according to claim 1, wherein: the shell (31) is of a square box-shaped body structure.
5. The canister connection piping with silencer according to claim 3, wherein the shell (31) is provided at both ends with quick couplings (310), wherein quick couplings (310) are connected with the canister solenoid valve (2) through the connection pipe (4), and quick couplings (310) are connected with the canister (1) through the connection pipe (4).
6. The canister connection line with muffler according to claim 4, wherein the center lines of the quick connectors (310) at both ends of the housing are not on the same straight line.
7. The canister connection line with muffler according to claim 5, wherein: and sealing rings (3101) are arranged on the quick connectors (310) at the two ends of the shell, and the quick connectors (310) are in sealing contact with the connecting pipe (4).
8. The canister connecting line with a silencer according to claim 3, wherein the outer shell (31) is divided into a left shell (311) and a right shell (312), and the left shell (311) and the right shell (312) are connected to form an body by welding.
9. The canister connection line with muffler according to claim 8, wherein: an annular step (313) is arranged on the inner wall of the joint of the left shell (311) and the right shell (312), and the sound-absorbing plate (32) is in contact with the annular step (313).
10. The canister connection line with muffler according to claim 9, wherein: the annular step (313) is provided with a positioning column (3130), and the sound absorption plate (32) is provided with a positioning hole (320) corresponding to the positioning column (3130).