CN220487736U

CN220487736U - Carbon tank

Info

Publication number: CN220487736U
Application number: CN202322002254.4U
Authority: CN
Inventors: 唐基荣; 徐靖; 祁建德
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-02-13
Anticipated expiration: 2033-07-27

Abstract

The utility model discloses a carbon tank, which comprises a tank body; a vent pipe communicated with the interior of the tank body; the filter, the filter with the first end of breather pipe passes through coupling assembling and connects, coupling assembling includes first connecting piece, second connecting piece and third connecting piece, first connecting piece is used for limiting the filter for the axial rotation of breather pipe, the second connecting piece is used for limiting the axial displacement of filter, the third connecting piece is used for right the filter with when the first end of breather pipe is assembled is directed. Compared with the prior art, the filter is directly connected with the vent pipe through the connecting component, so that the connection between the filter and the tank body is realized, the number of external assembly parts is reduced, the sealing control points are reduced, and the assembly efficiency and the sealing reliability are improved.

Description

Carbon tank

Technical Field

The utility model relates to the technical field of automobile emission, in particular to a carbon tank.

Background

The carbon tank is a part for treating gasoline vapor emission, which is commonly used on automobiles using gasoline, and the existing carbon tank basically uses a filter. Most carbon tanks are fixed on an automobile through bolts, and meanwhile, the filters are connected through rubber pipes and fixed on the carbon tanks or peripheral components, so that additional clamping hoops are possibly needed to influence the assembly efficiency, and meanwhile, the rubber pipes are connected with the components in an increased mode, so that leakage control points are increased, the process control points are more, and the cost of parts is increased.

Disclosure of Invention

The utility model aims to provide a carbon tank so as to solve the problems that the assembly efficiency is low and leakage control points are more when the carbon tank is connected with a filter through a rubber tube at present.

The utility model provides a carbon tank, comprising:

a tank body;

a vent pipe communicated with the interior of the tank body;

the filter is connected with the first end of the vent pipe through a connecting assembly;

wherein: the connecting assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, wherein the first connecting piece is used for limiting the axial rotation of the filter relative to the vent pipe, the second connecting piece is used for limiting the axial movement of the filter, and the third connecting piece is used for guiding the filter when being assembled with the first end of the vent pipe.

The carbon tank is characterized in that the first connecting piece comprises a limit notch and a limit protrusion, the limit notch is formed in the inlet of the filter, the limit protrusion is formed in the first end of the vent pipe, the limit protrusion extends along the axis direction of the vent pipe, and the filter and the vent pipe are fixedly connected through the cooperation of the limit protrusion and the limit notch.

The carbon tank as described above, wherein preferably, the second connecting member includes a locking buckle and a positioning protrusion, the locking buckle is disposed on an outer circumference of the filter inlet, the positioning protrusion is disposed on an outer circumferential wall of the first end of the vent pipe, and the vent pipe and the filter are locked by cooperation of the locking buckle and the positioning protrusion.

A canister as described above, wherein preferably the third connector is a first connector secured to the inlet of the filter, the first connector being extendable into the vent tube, the outer diameter of the first connector being matched with the inner diameter of the vent tube.

In one embodiment of the carbon canister described above, preferably, a seal is fitted around the outer circumference of the first connector, and the seal is matched with the inner diameter of the first end port of the vent pipe.

A canister as described above, wherein preferably the second end of the vent tube is provided with a shut-off valve.

In the carbon tank as described above, it is preferable that a fixing buckle for fitting the tank to a vehicle body is provided on an outside of the tank.

In the carbon tank as described above, preferably, a fixing bracket is further provided on the outside of the tank body, and the fixing bracket is used for fixing the tank body to the vehicle body.

In the carbon tank as described above, preferably, an adsorption tube is provided outside the tank body, and a pressure sensor is provided on the adsorption tube.

A carbon canister as described above, wherein preferably the canister body is further provided with a desorption tube.

Compared with the prior art, the filter is directly connected with the vent pipe through the connecting component, so that the connection between the filter and the tank body is realized, the number of external assembly parts is reduced, the sealing control points are reduced, and the assembly efficiency and the sealing reliability are improved.

Drawings

FIG. 1 is a perspective view of a prior art canister;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a rear view of the present utility model;

FIG. 4 is a perspective view of a filter of the present utility model;

fig. 5 is a perspective view of the vent tube of the present utility model.

Reference numerals illustrate:

100-carbon tank, 200-fixing support, 300-filter, 400-rubber tube and 500-fixing buckle;

10-a tank body, 11-a fixing buckle and 12-a fixing bracket;

20-breather pipes and 21-stop valves;

30-a filter;

40-first connecting piece, 41-limit notch, 42-limit protrusion;

50-second connecting piece, 51-locking buckle, 52-positioning bulge;

60-a third connector;

70-adsorbing tube, 71-pressure sensor;

80-desorption tube.

Detailed Description

The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Referring to fig. 1, fig. 1 is a carbon tank in the prior art, and includes a plurality of fixing brackets 200, wherein the carbon tank 100 is fixed on a vehicle body through the cooperation of a plurality of bolts and the fixing brackets 200, and the installation position of the carbon tank 100 in the vehicle is limited in a bolt connection manner, so that tools are inconvenient to use, and the operation difficulty is high. And the filter 300 is connected with the carbon canister 100 through the rubber tube 400, the filter 300 is fixed on the vehicle body part through the fixing buckle 500, and when being connected through the rubber tube 400, an additional clamping hoop may be required to affect the assembly efficiency, and meanwhile, the increased connection between the rubber tube 400 and the part increases the leakage control point, thereby increasing the cost of parts.

In order to solve the problems in the prior art, referring to fig. 2 and 3, the present utility model provides a canister including a canister body 10, a vent pipe 20, and a filter 30, wherein:

the outside of jar body 10 sets up fixed buckle 11, can conveniently assemble jar body 10 in any suitable position in the car through fixed buckle 11, convenient operation can not lead to the fact the problem that is difficult to the installation owing to spatial position, in the embodiment that this application provided, be equipped with a plurality of fixed bolsters 12 in the bottom of jar body 10, preferably two, after the assembly of jar body 10 through fixed buckle 11, only need utilize the cooperation of bolt and fixed bolster 12 can be with the position fixing of jar body 10, fixed buckle 11 forms stable triangle-shaped structure with two fixed bolsters 12, thereby make jar body 10 can be firmly fixed in the car.

The breather pipe 20 is communicated with the inside of the tank body 10, the breather pipe 20 is used for communicating the tank body 10 with the filter 30, in the embodiment provided by the application, the breather pipe 20 is arranged outside the tank body 10, the breather pipe 20 can realize the sealing connection between the tank body 10 and the filter 30, the increase of leakage control points can be avoided, and the fixed installation is not required through tools such as an additional clamping hoop.

The first end of filter 30 and breather pipe 20 is connected through coupling assembling, uses coupling assembling to be fixed in the first end of breather pipe 20 with filter 30, and then realizes the intercommunication of filter 30 and jar body 10, can avoid using the problem that produces when the rubber tube is connected, still has good sealed effect simultaneously.

In the embodiment provided herein, the connection assembly includes a first connector 40, a second connector 50, and a third connector 60, the first connector 40 being configured to limit axial rotation of the filter 30 relative to the breather tube 20, thereby ensuring a completely sealed assembly of the filter 30 and the breather tube 20; the second connection member 50 serves to limit the axial movement of the filter 30, thereby preventing gas leakage due to the axial movement of the filter 30 during the operation of the can 10; the third connecting piece 60 is used for guiding the filter 30 to be assembled with the first end of the breather pipe 20, and under the guiding action of the third connecting piece 60, the filter 30 can be assembled with the breather pipe 20 along the accurate direction, so that the assembly efficiency is improved. Under the combined action of the first connecting piece 40, the second connecting piece 50 and the third connecting piece 60, the complete sealing assembly of the filter 30 and the tank body 10 is realized, and the sealing efficiency and the reliability are effectively improved.

Referring to fig. 2, 4 and 5, the first connecting piece 40 includes a limit notch 41 and a limit protrusion 42, the limit notch 41 is disposed at an inlet of the filter 30, the limit protrusion 42 is disposed at a first end of the vent pipe 20, the limit protrusion 42 extends along an axial direction of the vent pipe 20, the filter 30 and the vent pipe 20 are fixedly connected through cooperation of the limit protrusion 42 and the limit notch 41, in the embodiment provided in the application, the limit notch 41 is formed by recessing inwards along an outer circumference of the inlet of the filter 30, and when the limit protrusion 42 is inserted into the corresponding limit notch 41, connection between the filter 30 and the first end of the vent pipe 20 can be realized, so that axial rotation of the filter 30 relative to the first end of the vent pipe 20 is effectively controlled; the limiting recess 41 and the limiting protrusion 42 may be provided in plurality, and the fixing of the filter 30 to the first end of the breather pipe 20 can be more firm due to the cooperation of the limiting recess 41 and the limiting protrusion 42.

Further, referring to fig. 2, fig. 4 and fig. 5, the second connecting piece 50 includes a locking buckle 51 and a positioning protrusion 52, the locking buckle 51 is disposed on the outer circumference of the inlet of the filter 30, the positioning protrusion 52 is disposed on the outer circumference of the first end of the breather pipe 20, the breather pipe 20 and the filter 30 are locked by the locking buckle 51 and the positioning protrusion 52, in the embodiment provided by the application, the locking buckle 51 includes two locking buckles 51 symmetrically disposed along the outer circumference of the inlet of the filter 30, the positioning protrusion 52 is an annular boss formed along the outer circumference of the first end of the breather pipe 20, and in the assembling process, the two locking buckles 51 are clamped on the positioning protrusion 52, so that the filter 30 and the first end of the breather pipe 20 are fixedly connected, the axial movement of the filter 30 is effectively limited, the leakage problem caused by the axial movement of the filter 30 in the working process of the carbon tank is prevented, and the working efficiency of the carbon tank is further affected.

Still further, referring to fig. 3, the third connecting member 60 is a first connector, the first connector is fixed at the inlet of the filter 30, the first connector may extend into the vent pipe 20, the outer diameter of the first connector is matched with the inner diameter of the vent pipe 20, in the embodiment provided in the application, in the process that the limit notch 41 is connected with the limit protrusion 42, the first connector extends towards the inside of the vent pipe 20 along the axial direction of the vent pipe 20, and the outer diameter of the first connector is equal to the inner diameter of the vent pipe 20, so that the guiding function is achieved in the assembly process of the filter 30 and the vent pipe 20, specifically, the first connector is a male connector, which can ensure the communication between the filter 30 and the inside of the vent pipe 20 while playing a good guiding function.

In a possible embodiment, a sealing element (not shown in the drawing) is sleeved on the outer circumference of the first joint, an annular groove is formed in the outer circumference of the first joint, the sealing element is sleeved in the annular groove, the sealing element is matched with the inner diameter of the first end port of the vent pipe 20, the sealing element is preferably an O-shaped ring, the O-shaped ring is made of rubber, the sealing effect of the filter 30 and the first end of the vent pipe 20 can be further improved, and other structures capable of playing a sealing role can be selected as the sealing element, so that the sealing element is not limited.

Referring to fig. 2, a shut-off valve is provided at a second end of the ventilation pipe 20 in order to control the opening and closing of the ventilation pipe 20.

Referring to fig. 2 and 3, an adsorption tube 70 is disposed outside the tank body 10, a pressure sensor 71 is disposed on the adsorption tube 70, in the embodiment provided by the application, the adsorption tube 70 is welded outside the tank body 10, steam medium generated during operation of an automobile fuel tank enters the carbon tank through the adsorption tube 70, in order to know the air pressure of the steam medium in the adsorption tube 70 in real time, the pressure sensor 71 is disposed on the adsorption tube 70, the air pressure of the steam medium generated during operation of the fuel tank can be monitored in real time in the process of entering the tank body 10, and when the air pressure value in the adsorption tube 70 is too large, corresponding measures can be timely taken to avoid danger.

Referring to fig. 2 and 3, a desorption tube 80 is further disposed outside the tank 10, in the embodiment provided in the application, the desorption tube 80 is welded outside the tank 10, one end of the desorption tube 80 is communicated with the inside of the tank 10, the other end of the desorption tube 80 is connected with an internal combustion engine, the internal combustion engine works to extract gas in the tank 10, the gas passes through the tank 10 from the filter 30 and enters the internal combustion engine from the desorption tube 80, and steam media adsorbed by adsorption media such as carbon powder in the tank 10 are flushed clean through the flow of air, so that the adsorption capacity of the adsorption media such as carbon powder is recovered, and the adsorption work can be continued.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A canister, comprising:

a tank body;

a vent pipe communicated with the interior of the tank body;

wherein: the connecting assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, wherein the first connecting piece is used for limiting the axial rotation of the filter relative to the vent pipe, the second connecting piece is used for limiting the axial movement of the filter, and the third connecting piece is used for guiding the filter when the filter is assembled with the first end of the vent pipe;

the first connecting piece comprises a limit notch and a limit bulge, the limit notch is arranged at the inlet of the filter, the limit bulge is arranged at the first end of the vent pipe, the limit bulge extends along the axial direction of the vent pipe, and the filter and the vent pipe are fixedly connected with the limit notch through the cooperation of the limit bulge and the limit notch;

the second connecting piece comprises a locking buckle and a positioning bulge, the locking buckle is arranged on the outer circumference of the inlet of the filter, the positioning bulge is arranged on the outer circumferential wall of the first end of the vent pipe, and the vent pipe and the filter are locked through the matching of the locking buckle and the positioning bulge;

the third connecting piece is a first connector, the first connector is fixed at the inlet of the filter, the first connector can extend into the breather pipe, and the outer diameter of the first connector is matched with the inner diameter of the breather pipe.

2. The canister of claim 1, wherein the first fitting has a seal around an outer circumference thereof that mates with an inner diameter of the first end port of the vent tube.

3. The canister of claim 1, wherein the second end of the vent tube is provided with a shut-off valve.

4. The carbon canister of claim 1, wherein a securing catch is provided on an exterior of the canister for mounting the canister to a vehicle body.

5. The carbon canister of claim 1, wherein a securing bracket is further provided on the exterior of the canister body for securing the canister body to a vehicle body.

6. The canister of claim 1, wherein an adsorption tube is provided outside the canister body, and a pressure sensor is provided on the adsorption tube.

7. The canister of claim 1, wherein the canister body is further provided with a desorption tube on the exterior.