CN112984266B - Silencing element used in front of carbon tank electromagnetic valve - Google Patents
Silencing element used in front of carbon tank electromagnetic valve Download PDFInfo
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- CN112984266B CN112984266B CN202110363755.8A CN202110363755A CN112984266B CN 112984266 B CN112984266 B CN 112984266B CN 202110363755 A CN202110363755 A CN 202110363755A CN 112984266 B CN112984266 B CN 112984266B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0872—Details of the fuel vapour pipes or conduits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencing element used in front of a carbon tank electromagnetic valve, which comprises a silencer body and at least one fixing structure arranged on the surface of the silencer body, wherein the fixing structure is used for fixing a vehicle fixing plate so as to fix the silencer body on the vehicle fixing plate; the rigidity of the material of the silencer body is greater than that of the material of the fixing structure, or/and the toughness of the material of the fixing structure is greater than that of the material of the silencer body. The muffler element can satisfy both the rigidity required for the muffler body and the toughness required for the fixing structure.
Description
Technical Field
The invention relates to a fuel steam desorption system, in particular to a silencing element used in front of a carbon tank electromagnetic valve.
Background
In order to prevent air pollution caused by evaporation of fuel in the automobile, a set of fuel steam desorption system is arranged in the fuel automobile. The main elements in the fuel steam desorption system are a carbon tank, a carbon tank electromagnetic valve, a desorption pipeline and a silencing element. The principle of the fuel steam desorption system is as follows: when the engine is closed, because the oil tank is airtight, fuel consumption can cause the condition of negative pressure to appear in the oil tank, under the negative pressure condition, fuel volatilizees more easily in the oil tank and produces fuel steam, fuel steam diffuses to the carbon tank along with fuel evaporation pipeline this moment, because of there being activated carbon in the carbon tank inside can be with the firm absorption of fuel molecule in the carbon tank, prevent that fuel steam from discharging to the atmosphere and causing the atmospheric pollution, when the engine starts, the carbon pipe solenoid valve is opened, inhale along with the engine, the fuel molecule of adsorbing in the carbon tank before can be carried and burn through the carbon tank solenoid valve by the air that the carbon tank breathed in from the atmosphere, air intake manifold and finally reach the combustion chamber. The carbon tank electromagnetic valve can generate intermittent switch action along with the opening of an accelerator when the automobile is started, the action can cause overlarge gas flow in a desorption pipeline to cause noise of 'clicking', and the silencing element is used for reducing the noise of the carbon tank electromagnetic valve caused by the intermittent switch.
In the prior art, on one hand, the volume of the silencing element is large, and the silencing element needs to be fixed on a vehicle sheet metal to prevent the situation that the silencing element is impacted and damaged with peripheral parts due to severe shaking, a fixing structure is arranged on the silencing element and penetrates into a fixing hole in the vehicle sheet metal for fixing through the fixing structure, and the silencing element needs to undergo impact caused by long-term shaking of a vehicle body, and the fixing structure is required to have enough toughness and elasticity to prevent the situations that the fixing structure is broken when penetrating into the fixing hole of the vehicle sheet metal or cannot penetrate into the fixing hole due to too high rigidity, and the vehicle body is broken due to continuous shaking and impact; on the other hand, in the actual production process, since the silencing element needs to be assembled in the pipeline of the fuel vapor desorption system, when the pipelines are respectively assembled on the left side and the right side of the silencing element, the pipeline usually collides with the wall surface of the silencing element, which in turn needs the silencing element to meet a certain rigidity requirement as a whole, and has sufficient impact resistance, namely, the breaking stress of the material. The two requirements are in conflict with each other in plastics, i.e. a plastic cannot have a rigidity in combination with a toughness.
Disclosure of Invention
In order to solve the above-mentioned deficiencies of the prior art, the present invention provides a silencer element used in front of a canister solenoid valve, which can satisfy both the rigidity required for the silencer body and the toughness required for the fixing structure.
The technical problem to be solved by the invention is realized by the following technical scheme:
a silencing element used in front of a carbon tank electromagnetic valve comprises a silencer body and at least one fixing structure arranged on the surface of the silencer body, wherein the fixing structure is used for being fixed with a vehicle fixing plate so as to fix the silencer body on the vehicle fixing plate; the rigidity of the material of the silencer body is greater than that of the material of the fixing structure, or/and the toughness of the material of the fixing structure is greater than that of the material of the silencer body.
Furthermore, an at least joint groove has been seted up on the outer wall of muffler body, the at least one end in joint groove extends to form the confession on the terminal surface that muffler body corresponds the joint entry that fixed knot constructs the entering.
Furthermore, the fixing structure comprises a bottom plate and at least one fixing clip, and the fixing clip is arranged on the bottom plate; the fixing structure is assembled with the silencer main body in a mode that the bottom plate of the fixing structure is clamped with the clamping groove.
Further, the clamping groove comprises an outer groove and an inner groove which are stacked inside and outside, the width of the inner groove is matched with that of the bottom plate, and the width of the outer groove is smaller than that of the bottom plate, so that the bottom plate embedded into the inner groove is clamped by the outer groove on two sides in the width direction.
Furthermore, the bottom of the clamping groove is of a planar structure, and the bottom of the bottom plate is of a corresponding planar structure; or, the bottom in joint groove is ARC structure, and with muffler body centre of a circle sets up, the bottom of bottom plate also is corresponding ARC structure.
Furthermore, the fixing clip is in an inverted V-shaped structure, the opening of the fixing clip faces the bottom plate, and the fixing clip is connected with the bottom plate through a connecting column in the opening; the size of the opening of the fixing clip can be changed under the action of external force and can be restored under the action of self elasticity.
Furthermore, the fixed knot constructs still including set up in arc buffer board between bottom plate and the fixing clip, the arc mouth orientation of arc buffer board the fixing clip to after the fixing clip passed the fixed orifices of vehicle fixed plate, with the common centre gripping of fixing clip is in the vehicle fixed plate.
Further, the bottom plate is provided with a mistake proofing plate at the rear end in the length direction, and the width of the mistake proofing plate is greater than that of the bottom plate; the joint groove is provided with the mistake proofing groove in its joint entrance, the width in mistake proofing groove is greater than the width in joint groove and with the width phase-match of mistake proofing board.
Furthermore, an advancing limiting block and a retreating limiting block are arranged in the clamping groove, the advancing limiting block is used for preventing the fixing structure reaching the preset position of the clamping groove from advancing, and the retreating limiting block is used for preventing the fixing structure reaching the preset position of the clamping groove from retreating.
Further, at least one of the following is also satisfied:
the advancing limiting blocks are arranged on the groove walls on the two sides of the clamping groove in the width direction and are used for blocking the two sides of the bottom plate of the fixing structure so as to limit the advance of the fixing structure reaching the preset position of the clamping groove;
the backward limiting block is arranged at the bottom of the clamping groove, a backward limiting clamping table is arranged at the front end of the bottom plate of the fixing structure, the backward limiting clamping table can slide forwards through the backward limiting block, and the backward limiting clamping table cannot retreat due to the blocking of the backward limiting block at a preset position of the clamping groove;
the retreating limiting block is a triangular clamping block; one surface of the retreating limiting block, which faces the clamping inlet of the clamping groove, is an inclined surface for the retreating limiting clamping table to slide forwards; the surface of the retreating limiting block, which is back to the clamping inlet of the clamping groove, is a vertical surface and is used for blocking the retreating limiting clamping table at a preset position from retreating;
the bottom of the front end of the retreating limiting clamping table is provided with an inclined surface so as to be matched with the inclined surface of the retreating limiting block;
the bottom of bottom plate is in retreat spacing ka tai's rear is provided with the holding tank to hold and support retreat the spacing stopper of retreating spacing ka tai rear end.
The invention has the following beneficial effects: the silencer body is made of rigid materials, so that the silencer body has high impact resistance strength, the wall surface bears the rigidity required by pipeline impact when the silencer body is connected and assembled with a pipeline in a fuel steam desorption system, the silencer body is prevented from being broken due to impact stress when the silencer body is connected and assembled with the pipeline, the fixing structure is made of tough materials, the fixing structure has high stress and deformation capacity, the toughness required when the fixing structure penetrates into a fixing hole of a vehicle fixing plate (metal plate) is met, and the fixing structure is prevented from being broken when penetrating into the fixing hole or being incapable of penetrating into the fixing hole due to too high rigidity and being broken due to continuous shaking impact of a vehicle body and the like.
Drawings
FIG. 1 is an exploded view of a sound attenuating element provided in accordance with the present invention;
FIG. 2 is an exploded view of another attenuating element provided in accordance with the present invention;
FIG. 3 is a cross-sectional view of a sound attenuating element provided in accordance with the present invention;
FIG. 4 is a cross-sectional view of another attenuating element provided in accordance with the present invention;
FIG. 5 is a bottom schematic view of the mounting structure of the attenuating element of FIG. 2;
FIG. 6 is a diagram illustrating steps in the fabrication of a sound attenuating element according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, a silencing element used in front of a carbon canister electromagnetic valve includes a silencer body 1 and at least one fixing structure 2 disposed on a surface of the silencer body 1, where the fixing structure 2 is used to fix a vehicle fixing plate (sheet metal) and further fix the silencer body 1 on the vehicle fixing plate (sheet metal); the rigidity of the material of the silencer body 1 is greater than the rigidity of the material of the fixing structure 2, or/and the toughness of the material of the fixing structure 2 is greater than the toughness of the material of the silencer body 1.
The silencer element is characterized in that different materials are respectively adopted between a silencer body 1 and a fixing structure 2, the silencer body 1 is made of rigid materials, so that the silencer body 1 has high impact resistance to meet the requirement that the wall surface bears the rigidity required by pipeline impact when the silencer element is connected and assembled with a pipeline in a fuel steam desorption system, the silencer body 1 is prevented from being broken by impact stress when the silencer body is connected and assembled with the pipeline, the fixing structure 2 is made of flexible materials, so that the fixing structure 2 has high stress deformability to meet the toughness required when the silencer element penetrates into a fixing hole of a vehicle fixing plate (metal plate), and the fixing structure 2 is prevented from being broken when penetrating into the fixing hole or being too high in rigidity to penetrate into the fixing hole, and being broken due to continuous shaking impact of a vehicle body and the like.
The rigid material adopted by the silencer body 1 can be, but is not limited to, polyoxymethylene resin, glass fiber reinforced plastic, carbon fiber reinforced plastic, etc., and the flexible material adopted by the fixing structure 2 can be, but is not limited to, thermoplastic polyurethane elastomer rubber, thermoplastic elastomer material, thermoplastic vulcanized rubber, thermoplastic polyester elastomer, etc.
Because a split type assembling structure is adopted between the silencer body 1 and the fixed structure 2, the silencer body 1 and the fixed structure 2 can be respectively formed by injection molding of different materials, and finally, the silencer element is formed by combining the silencer body 1 and the fixed structure 2 in an assembling mode.
At least one clamping groove 120 is formed in the outer wall of the silencer body 1, and at least one end of the clamping groove 120 extends to the end face corresponding to the silencer body 1 to form a clamping inlet for the fixing structure 2 to enter.
In an embodiment, as shown in fig. 1, the number of the fixing structures 2 is one, and at this time, only one end of the clamping groove 120 needs to be extended to one end surface of the muffler body 1 to form a clamping inlet; in another embodiment, as shown in fig. 2, the number of the fixing structures 2 is two, at this time, two ends of the clamping groove 120 may extend to two end surfaces of the muffler body 1 to form two clamping inlets, one clamping inlet corresponds to one fixing structure 2, or two clamping grooves 120 are formed in an outer wall of the muffler body 1, one clamping groove 120 corresponds to one fixing structure 2, one end of one clamping groove 120 extends to one end surface of the muffler body 1 to form one clamping inlet, and one end of the other clamping groove 120 extends to the other end surface of the muffler body 1 to form the other clamping inlet. In a specific implementation, the number of the fixing structures 2 and the clamping grooves 120 may be determined according to actual requirements, and should not be limited to the number in the embodiment of the present disclosure.
The muffler body 1 comprises a cylinder body 11, a first cover body 12 and a second cover body 13, wherein a silencing cavity is arranged in the cylinder body 11, openings are respectively formed in two end faces of the cylinder body 11 of the silencing cavity, and the first cover body 12 and the second cover body 13 are respectively fixedly arranged on the two end faces of the cylinder body 11 to seal the silencing cavity; a first connector 14 communicated with the silencing cavity is arranged on the first cover body 12, and a second connector 15 communicated with the silencing cavity is arranged on the second cover body 13; the clamping groove 120 is opened on the outer wall of the cylinder body 11.
When the silencing element is connected with a pipeline in a fuel steam desorption system, the first connector 14 and the second connector 15 need to be respectively inserted into the pipeline, the splicing stress is concentrated on the annular region of the joint of the first cover body 12 and the first connector 14 and the annular region of the joint of the second cover body 13 and the second connector 15, and the annular regions of the joint of the first cover body 12 and the first connector 14 and the annular region of the joint of the second cover body 13 and the second connector 15 are integrally formed by injection molding of rigid materials, so that the annular regions of the two joints have higher impact resistance, and the occurrence of fracture due to the action of the splicing stress can be avoided.
In this embodiment, the first cover 12 and the cylinder 11 form an integral structure during injection molding, and the second cover 13 and the cylinder 11 form an integral structure during later assembly by laser welding; as shown in fig. 2, if the fixing structure 2 needs to be assembled into the connecting groove from one end of the first cover 12, the clamping inlet of the clamping groove 120 may be opened on the first cover 12, and at this time, other limiting structures need to be arranged between the fixing structure 2 and the clamping groove 120 to prevent the fixing structure 2 from sliding out; if fixed knot constructs 2 need follow 13 one end assembly of second lid gets into in the spread groove, then second lid 13 is fixed set up in back on the cylinder body 11 will the joint entry in joint groove 120 seals, in order to avoid fixed knot constructs 2 roll-offs.
The first connector 14 and the second connector 15 are bamboo joint type connectors.
The first connector 14 and the second connector 15 are both sleeved with at least one sealing ring 3, so that after the pipeline is assembled, the pipeline is utilized to seal the joint by the compression force of the sealing ring 3.
The fixing structure 2 comprises a bottom plate 21 and at least one fixing clip 22, wherein the fixing clip 22 is arranged on the bottom plate 21; the fixing structure 2 is assembled with the silencer main body 1 in a manner that the bottom plate 21 is clamped with the clamping groove 120.
In one embodiment, as shown in fig. 1, the number of the fixing clips 22 provided on the base plate 21 is one, and in another embodiment, as shown in fig. 2, the number of the fixing clips 22 provided on the base plate 21 is two. In practical implementation, the number of the fixing clips 22 disposed on the bottom plate 21 may be determined according to practical requirements, and should not be limited to the number in the embodiment of the present disclosure.
In one embodiment, as shown in fig. 3, the bottom of the catching groove 120 is a plane structure b, that is, the bottom of the bottom plate 21 is also a corresponding plane structure b, and the catching groove 120 is a flat-bottom groove, so that the bottom plate 21 has a small sliding friction with the catching groove 120 when being assembled into the catching groove 120; in another embodiment, as shown in fig. 4, the bottom of the clamping groove 120 is an arc-shaped structure c, and is concentrically disposed with the cylinder 11 of the muffler body 1, that is, the bottom of the bottom plate 21 is also a corresponding arc-shaped structure c, and the clamping groove 120 adopts a round bottom groove, so that the diameter of the laser welding area on the end surface of the cylinder 11 is consistent with the main diameter of the cylinder 11, thereby facilitating laser welding with the second cover 13, and simultaneously reducing the cost of the injection mold of the cylinder 11.
The bottom plate 21 is respectively provided with oblique angles at two sides of the front end in the length direction, so that the convenience that the front end of the bottom plate 21 enters the clamping inlet of the clamping groove 120 is improved.
As shown in fig. 3 and 4, the locking groove 120 includes an outer groove 122 and an inner groove 121 stacked inside and outside, the width of the inner groove 121 is adapted to the width of the bottom plate 21 of the fixing structure 2, and the width of the outer groove 122 is smaller than the width of the bottom plate 21 of the fixing structure 2, so that the bottom plate 21 of the fixing structure 2 inserted into the inner groove 121 is locked by the outer groove 122 on both sides in the width direction.
The fixing clip 22 is in an inverted V-shaped structure, the opening of the fixing clip faces the bottom plate 21, and the fixing clip is connected with the bottom plate 21 through a connecting column in the opening; the size of the opening of the fixing clip 22 can be changed by an external force and can be restored by its own elastic force.
When fixing this noise reduction component on vehicle fixed plate (panel beating), fixing clip 22 penetrates in the fixed orifices of vehicle fixed plate (panel beating), its opening is in the aperture restriction effect of fixed orifices can diminish, treats to pass behind the fixed orifices of vehicle fixed plate (panel beating), its opening retrieval grow under self elasticity effect to its open-ended both ends with vehicle fixed plate (panel beating) counterbalance forms stable joint.
Outside bayonets 220 are respectively provided on the open both ends of the fixing clip 22, so that the fixing clip 22 penetrates the inner edge of the fixing hole is embedded after penetrating the fixing hole of the vehicle fixing plate (sheet metal).
The fixing structure 2 further comprises an arc-shaped buffer plate 23 arranged between the bottom plate 21 and the fixing clip 22, and an arc-shaped opening of the arc-shaped buffer plate 23 faces the fixing clip 22.
The two arc-shaped buffer plates 23 are used, one is matched with the fixing clip 22, after the fixing clip 22 passes through the fixing hole of the vehicle fixing plate (metal plate), the two ends of the arc-shaped opening and the two ends of the opening of the fixing clip 22 clamp the vehicle fixing plate (metal plate) together, and the clamping stability is improved; the other one is shockproof buffering effect, the arc-shaped buffering plate 23 has certain stress deformation capacity, when the vibration generated by vehicle running is transmitted to the silencing element from the vehicle fixing plate (metal plate), the arc-shaped buffering plate 23 is acted by the vibration force of the vehicle fixing plate (metal plate), and the arc-shaped opening can be deformed to buffer and unload a part of vibration force.
In one embodiment, as shown in fig. 1, the bottom plate 21 of the fixing structure 2 is provided with a mistake proofing plate 210 at the rear end in the length direction thereof, and the width of the mistake proofing plate 210 is greater than the width of the bottom plate 21; the joint groove 120 is provided with mistake proofing groove 123 at its joint entrance, the width in mistake proofing groove 123 is greater than the width in joint groove 120 and with mistake proofing board 210's width suits.
The silencing element can ensure that the bottom plate 21 can only start to enter the clamping groove 120 from the front end of the length direction of the bottom plate when the fixed structure 2 is assembled on the cylinder body 11 through the matching of the error-proof plate 210 and the error-proof groove 123, and if the assembling direction is wrong, the error-proof plate 210 can be jacked by the clamping groove 120 in the error-proof groove 123 and cannot continue to move forward.
In another embodiment, as shown in fig. 2, an advancing stopper 124 and a retreating stopper 125 are disposed in the clamping groove 120, the advancing stopper 124 is used for stopping the fixing structure 2 reaching the predetermined position of the clamping groove 120 from advancing, and the retreating stopper 125 is used for stopping the fixing structure 2 reaching the predetermined position of the clamping groove 120 from retreating.
The silencing element in this embodiment restricts the fixed structure 2 from advancing in the snap groove 120 by the advancing stopper 124, and restricts the fixed structure 2 from retreating in the snap groove 120 by the retreating stopper 125, so that the fixed structure 2 is snap-fitted in a predetermined position of the snap groove 120 without moving forward or backward.
The advancing stoppers 124 are disposed on the two side walls of the inner groove 121 of the engaging groove 120 to block the two sides of the front end of the bottom plate 21, so as to limit the advance of the fixing structure 2 reaching the predetermined position of the engaging groove 120.
The backward stopper 125 is disposed at the bottom of the engaging groove 120, and as shown in fig. 5, a backward stopper 24 is also disposed at the front end of the bottom plate 21, and the backward stopper 24 can slide forward past the backward stopper 125 to reach a predetermined position of the engaging groove 120, and can not be retracted at the predetermined position due to the block of the backward stopper 125.
The retreating stopper 125 is a triangular block; one surface of the retreating limiting block 125 facing the clamping entrance of the clamping groove 120 is an inclined surface for the retreating limiting clamping table 24 of the bottom plate 21 to slide forward, and when the retreating limiting clamping table 24 slides forward past the retreating limiting block 125, the inclined surface has an upward thrust to the retreating limiting clamping table 24, so that the bottom plate 21 is stressed and deformed to drive the retreating limiting clamping table 24 to tilt upward to smoothly slide past the retreating limiting block 125; the surface of the retreating limiting block 125, which faces away from the clamping entrance of the clamping groove 120, is a vertical surface for blocking the retreating limiting clamping table 24 at the predetermined position from retreating, and the vertical surface abuts against the rear end of the retreating limiting clamping table 24 to limit the retreating limiting platform from retreating after the retreating limiting clamping table 24 slides forwards through the retreating limiting block 125.
Preferably, the bottom of the front end of the backward limiting block 24 is provided with an inclined surface to match with the inclined surface of the backward limiting block 125, so that the backward limiting block 24 slides forwards across the backward limiting block 125; the rear end of the retreating limit block 24 is configured to be a vertical surface so as to be matched with the vertical surface of the retreating limit block 125, so as to be abutted against the retreating limit block 125 for limiting.
An accommodating groove 25 is formed in the bottom of the bottom plate 21 behind the retreat limiting clamping table 24 to accommodate a retreat limiting block 125 abutting against the rear end of the retreat limiting clamping table 24.
As shown in fig. 6, the method of manufacturing the sound attenuating element includes the steps of:
the method comprises the following steps: the silencer body 1 and the fixed structure 2 are made of different materials, wherein the rigidity of the material of the silencer body 1 is larger than that of the material of the fixed structure 2, or/and the toughness of the material of the fixed structure 2 is larger than that of the material of the silencer body 1.
In the embodiment of the present disclosure, the muffler body 1 manufactured in the first step includes a cylinder 11, a first cover 12, and a second cover 13, where the cylinder 11 and the first cover 12 are an integral structure, and the cylinder 11 and the second cover 13 are a separate structure.
Step two: the fixing structure 2 is fitted into the surface of the muffler body 1.
Step three: and fixedly arranging the first cover body 12 and/or the second cover body 13 on the corresponding end surface of the cylinder body 11 so as to seal the silencing cavity.
Preferably, the second cover 13 is fixedly disposed on the corresponding end surface of the cylinder 11, and then the corresponding clamping inlet of the clamping groove 120 is sealed.
If the cylinder 11 and the second cover 13 of the muffler body 1 manufactured in the first step are also of a split structure, the first cover 12 is also fixed to the corresponding end surface of the cylinder 11 in the third step.
In the third step, the first cover body 12 and/or the second cover body 13 are preferably connected and fixed to the corresponding end surface of the cylinder body 11 by laser welding.
The method of manufacturing the sound attenuating element further comprises:
step four: the first connector 14 and the second connector 15 are respectively inserted into a pipeline in a fuel steam desorption system;
step five: and the fixing structure 2 penetrates into a fixing hole of the vehicle fixing plate (metal plate), and then the silencer body 1 is fixed on the vehicle fixing plate (metal plate).
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (8)
1. A silencing element used in front of a carbon tank electromagnetic valve comprises a silencer body and at least one fixing structure arranged on the surface of the silencer body, wherein the fixing structure is used for being fixed with a vehicle fixing plate so as to fix the silencer body on the vehicle fixing plate; the rigidity of the material of the silencer body is greater than that of the material of the fixing structure, or/and the toughness of the material of the fixing structure is greater than that of the material of the silencer body; the silencer body comprises a cylinder body, a first cover body and a second cover body, wherein a silencing cavity is formed in the cylinder body, openings are formed in two end faces of the cylinder body respectively, and the first cover body and the second cover body are fixedly arranged on the two end faces of the cylinder body respectively to seal the silencing cavity; the outer wall of the cylinder body is provided with at least one clamping groove, and at least one end of the clamping groove extends to the corresponding end face of the cylinder body to form a clamping inlet for the fixed structure to enter; the fixing structure comprises a bottom plate and at least one fixing clip, and the fixing clip is arranged on the bottom plate; the fixing structure is assembled with the silencer body in a mode that the bottom plate of the fixing structure is clamped with the clamping groove.
2. The silencing element for use in front of a canister solenoid valve as recited in claim 1, wherein said catching groove comprises an outer groove and an inner groove stacked inside and outside, said inner groove having a width corresponding to the width of said bottom plate, said outer groove having a width smaller than the width of said bottom plate, so that the bottom plate inserted into said inner groove is caught by said outer groove on both sides in the width direction.
3. The silencing element used in front of the carbon tank electromagnetic valve as recited in claim 1, wherein the bottom of the clamping groove is a plane structure, and the bottom of the bottom plate is a corresponding plane structure; or, the bottom in joint groove is ARC structure, and with muffler body centre of a circle sets up, the bottom of bottom plate also is corresponding ARC structure.
4. The silencing element used in front of the canister electromagnetic valve as recited in claim 1, wherein the fixing clip is of an inverted V-shaped structure, the opening of the fixing clip faces the bottom plate, and the fixing clip is connected with the bottom plate through a connecting column in the opening; the size of the opening of the fixing clip can be changed under the action of external force and can be restored under the action of self elasticity.
5. The silencing element used in front of the canister solenoid valve as recited in claim 1, wherein the fixing structure further comprises an arc-shaped buffer plate disposed between the bottom plate and the fixing clip, and an arc-shaped opening of the arc-shaped buffer plate faces the fixing clip to clamp the vehicle fixing plate together with the fixing clip after the fixing clip passes through the fixing hole of the vehicle fixing plate.
6. The silencing element used in front of the canister solenoid valve as recited in claim 2, wherein the bottom plate is provided with a mistake proofing plate at a rear end in a length direction thereof, and a width of the mistake proofing plate is greater than a width of the bottom plate; the joint groove is provided with the mistake proofing groove at its joint entrance, the width in mistake proofing groove is greater than the width in joint groove and with the width of mistake proofing board suits.
7. The silencing element used in front of the carbon tank electromagnetic valve as recited in claim 1, wherein an advancing stopper and a retreating stopper are arranged in the clamping groove, the advancing stopper is used for stopping the fixed structure reaching the preset position of the clamping groove from advancing, and the retreating stopper is used for stopping the fixed structure reaching the preset position of the clamping groove from retreating.
8. A sound attenuating element for use in front of a canister solenoid valve as claimed in claim 7, characterised in that at least one of the following is also met:
the advancing limiting blocks are arranged on the groove walls on the two sides of the clamping groove in the width direction and are used for blocking the two sides of the bottom plate of the fixing structure so as to limit the advance of the fixing structure reaching the preset position of the clamping groove;
the backward limiting block is arranged at the bottom of the clamping groove, a backward limiting clamping table is arranged at the front end of the bottom plate of the fixing structure, the backward limiting clamping table can slide forwards through the backward limiting block, and the backward limiting clamping table cannot retreat due to the blocking of the backward limiting block at a preset position of the clamping groove;
the retreating limiting block is a triangular clamping block; one surface of the retreating limiting block, which faces the clamping inlet of the clamping groove, is an inclined surface for the retreating limiting clamping table to slide forwards; the surface of the retreating limiting block, which is back to the clamping inlet of the clamping groove, is a vertical surface and is used for blocking the retreating limiting clamping table at a preset position from retreating;
the bottom of the front end of the retreating limiting clamping table is provided with an inclined surface so as to be matched with the inclined surface of the retreating limiting block;
the bottom of the bottom plate is provided with an accommodating groove behind the retreating limiting clamping table so as to accommodate a retreating limiting block abutting against the rear end of the retreating limiting clamping table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110363755.8A CN112984266B (en) | 2021-04-02 | 2021-04-02 | Silencing element used in front of carbon tank electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110363755.8A CN112984266B (en) | 2021-04-02 | 2021-04-02 | Silencing element used in front of carbon tank electromagnetic valve |
Publications (2)
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| CN112984266A CN112984266A (en) | 2021-06-18 |
| CN112984266B true CN112984266B (en) | 2023-03-14 |
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| CN202110363755.8A Active CN112984266B (en) | 2021-04-02 | 2021-04-02 | Silencing element used in front of carbon tank electromagnetic valve |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04353205A (en) * | 1991-05-31 | 1992-12-08 | Mazda Motor Corp | Silencer structure for automobile |
| US6058702A (en) * | 1996-05-13 | 2000-05-09 | Scambia Industrial Developments Aktiengesellschaft | Exhaust system for a motor vehicle, and motor vehicle |
| JP2003120282A (en) * | 2001-10-16 | 2003-04-23 | Mazda Motor Corp | Exhaust system structure |
| JP2006207460A (en) * | 2005-01-27 | 2006-08-10 | Mazda Motor Corp | Engine exhaust system |
| JP2011106545A (en) * | 2009-11-16 | 2011-06-02 | Togo Seisakusho Corp | Clip |
| CN204095696U (en) * | 2014-08-07 | 2015-01-14 | 上海通用汽车有限公司 | Energy-absorbing assembly between a kind of automotive trim panel and sheet metal component |
| CN104912640A (en) * | 2014-03-11 | 2015-09-16 | 住友理工株式会社 | Muffler hanger |
| CN208429038U (en) * | 2018-07-04 | 2019-01-25 | 重庆平伟汽车零部件有限公司 | Automobile interior exterior decorations positioning shackle member and positioning and mounting structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3867591B2 (en) * | 2002-02-28 | 2007-01-10 | 東海ゴム工業株式会社 | Muffler hanger |
-
2021
- 2021-04-02 CN CN202110363755.8A patent/CN112984266B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04353205A (en) * | 1991-05-31 | 1992-12-08 | Mazda Motor Corp | Silencer structure for automobile |
| US6058702A (en) * | 1996-05-13 | 2000-05-09 | Scambia Industrial Developments Aktiengesellschaft | Exhaust system for a motor vehicle, and motor vehicle |
| JP2003120282A (en) * | 2001-10-16 | 2003-04-23 | Mazda Motor Corp | Exhaust system structure |
| JP2006207460A (en) * | 2005-01-27 | 2006-08-10 | Mazda Motor Corp | Engine exhaust system |
| JP2011106545A (en) * | 2009-11-16 | 2011-06-02 | Togo Seisakusho Corp | Clip |
| CN104912640A (en) * | 2014-03-11 | 2015-09-16 | 住友理工株式会社 | Muffler hanger |
| CN204095696U (en) * | 2014-08-07 | 2015-01-14 | 上海通用汽车有限公司 | Energy-absorbing assembly between a kind of automotive trim panel and sheet metal component |
| CN208429038U (en) * | 2018-07-04 | 2019-01-25 | 重庆平伟汽车零部件有限公司 | Automobile interior exterior decorations positioning shackle member and positioning and mounting structure |
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|---|---|
| CN112984266A (en) | 2021-06-18 |
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