CN217518755U

CN217518755U - Variable air inlet and air filter using same

Info

Publication number: CN217518755U
Application number: CN202221773711.9U
Authority: CN
Inventors: 贾砚鹏; 史超; 陈亚东; 张龙; 柴希波
Original assignee: PINGYUAN FILTER CO Ltd
Current assignee: PINGYUAN FILTER CO Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-09-30
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a variable air inlet, which comprises a tubular body, wherein the body is provided with an inner cavity for passing air, the air flow direction is used as the downstream direction, the upstream end of the body is used for connecting an air inlet pipeline communicated with the atmosphere, the downstream end of the body is used for connecting an air filter, the body in the middle position of the inner cavity is rotatably connected with an air baffle plate through a rotary connecting structure, and a rotary angle resetting structure is arranged between the rotary connecting structure and the body; the air baffle is positioned in the inner cavity and is separated from the cavity wall of the inner cavity; the air baffle has reset position and rotation limit position, and air baffle perpendicular to the axis direction of body under the reset position, air baffle is on a parallel with the axis direction of body under the rotation limit position. The larger the air input of the engine is, the smaller the section of the air baffle plate for shielding the inner cavity is; the smaller the air input of the engine is, the larger the section of the air baffle plate for shielding the inner cavity is, so that the air inlet requirement of the engine can be met, the noise of the engine can be blocked as much as possible, and the NVH problem of the whole vehicle can be solved.

Description

Variable air inlet and air filter using same

Technical Field

The utility model belongs to the technical field of the filtration technique and specifically relates to an air filter air inlet and air cleaner help solving whole car NVH problem.

Background

Traditional air cleaner, the air inlet is arranged and is strained down on the casing empty, and arranging of gas outlet is strained on the casing empty, and the air inlet position does not have any obstacle, can not reduce the engine noise, does not help solving whole car NVH problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a variable air inlet, according to the corresponding structural change of the different automatic production of engine air input, block the engine noise.

To achieve the above purpose, the variable air inlet of the utility model comprises a tubular body, the body is provided with an inner cavity for passing air, the downstream direction is the direction of air flow, the upstream end of the body is used for connecting an air inlet pipeline communicated with the atmosphere, the downstream end of the body is used for connecting an air filter,

the body in the middle of the inner cavity is rotationally connected with an air baffle through a rotary connecting structure, and a rotary angle resetting structure is arranged between the rotary connecting structure and the body; the air baffle is positioned in the inner cavity and is separated from the cavity wall of the inner cavity;

the air baffle has reset position and rotation limit position, and air baffle perpendicular to the axis direction of body under the reset position, air baffle is on a parallel with the axis direction of body under the rotation limit position.

The rotary connecting structure comprises a rotating shaft which vertically penetrates through the inner cavity of the body, the upper part of the rotating shaft is in rotating fit with the top wall of the body through an upper bearing, and the lower part of the rotating shaft is in rotating fit with the bottom wall of the body through a lower bearing; a clamping groove matched with the air baffle is formed in the middle of the rotating shaft, and an assembly hole penetrating through the rotating shaft is formed in the bottom of the clamping groove; one end part of the gas baffle is clamped in the clamping groove, the gas baffle is connected with the gas baffle through a bolt penetrating through the gas baffle and the assembling hole, and a compression nut used for compressing the rotating shaft is connected onto the bolt.

The rotation angle resetting structure specifically comprises:

the top end of the rotating shaft extends to the upper part of the body and is connected with an upper positioning plate, the upper positioning plate is downwards connected with a plurality of upper positioning bulges, each upper positioning bulge is uniformly arranged along the circumferential direction of the upper positioning plate, and an upper positioning groove is formed between every two adjacent upper positioning bulges;

the top wall of the body at the upper bearing is upwards connected with a plurality of lower positioning bulges, and the top of each lower positioning bulge radially extends to the upper part of the outer ring of the upper bearing;

a return spring is pressed between the upper bearing and the upper positioning plate, the top end of the return spring is clamped into the upper positioning groove, and the bottom end of the return spring is pressed with the lower positioning bulge and the circumferential position of the return spring is limited by the lower positioning bulge;

the body low reaches end is equipped with the cardboard with the protruding looks adaptation of upstream air intake pipe, is equipped with on the cardboard to be used for with the buckle groove or buckle protruding looks adaptation's of joint groove or buckle on the upstream air intake pipe buckle protruding or joint groove.

The inner cavity roof of reset position department is connected with the dog down downwards, and the inner cavity roof of reset position department upwards is connected with down the dog, goes up the dog and is used for blockking that the gas shield is rotatory to the direction of contrary air current with lower dog.

The utility model also discloses an air cleaner who uses above-mentioned variable air inlet, including the last casing that links to each other from top to bottom and lower casing, air cleaner's the low reaches end of the lower casing coupling body.

The utility model discloses have following advantage:

the utility model can automatically adjust the rotation angle of the air baffle according to the difference of the air input of the engine, and the larger the air input of the engine is, the smaller the section of the inner cavity shielded by the air baffle is (the smaller the air baffle effect is); on the contrary, the smaller the air input of the engine is, the larger the section of the air baffle plate for shielding the inner cavity is, so that the air inlet requirement of the engine can be met, the noise of the engine can be blocked as much as possible, and the NVH problem of the whole vehicle can be solved.

The rotary connection structure is simple in structure and convenient to install and use. The top end of the return spring is limited in its circumferential position by the upper positioning groove, and the bottom end of the return spring is limited in its circumferential position by the lower positioning groove, so that the return spring forms a torsion spring structure. When the wind power pushes the air baffle to rotate, the reset spring is twisted under the limiting action of the upper positioning groove and the lower positioning protrusion to generate torque, and when the torque generated by the reset spring is balanced with the torque generated by the wind power on the air baffle, the position of the air baffle is naturally fixed.

The rotation angle reset structure has the advantages of simple structure, lower material cost, more convenient processing, pure mechanical structure for playing the reset role and very reliable work. The structure of cardboard is convenient for with the utility model discloses be in the same place with the upper reaches air inlet pipeline joint is fixed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic view of the structure of the shaft and the air baffle;

FIG. 5 is a left side view of the shaft in cooperation with the air baffle;

fig. 6 is a schematic perspective view of the shaft and the air baffle.

Detailed Description

As shown in fig. 1 to 6, the variable intake of the present invention comprises a tubular body 1, the body 1 has an inner chamber 2 for passing air, the downstream direction is the airflow direction, the upstream end of the body 1 is used for connecting an intake pipe communicated with the atmosphere, the downstream end of the body 1 is used for connecting an air filter,

the body 1 in the middle of the inner cavity 2 is rotationally connected with an air baffle 3 through a rotary connecting structure, and a rotary angle resetting structure is arranged between the rotary connecting structure and the body 1; the air baffle 3 is positioned in the inner cavity 2 and is separated from the cavity wall of the inner cavity 2;

the air baffle 3 has a reset position and a rotation limit position, the air baffle 3 is perpendicular to the axis direction of the body 1 in the reset position, and the air baffle 3 is parallel to the axis direction of the body 1 in the rotation limit position.

The utility model can automatically adjust the rotation angle of the air baffle plate 3 according to the difference of the air input of the engine, and the larger the air input of the engine is, the smaller the section of the inner cavity 2 shielded by the air baffle plate 3 is (the smaller the air baffle effect is); on the contrary, the smaller the air input of the engine is, the larger the section of the inner cavity 2 shielded by the air baffle plate 3 is, so that the air inlet requirement of the engine can be met, the noise of the engine can be blocked as much as possible, and the NVH problem of the whole vehicle can be solved.

The rotary connecting structure comprises a rotating shaft 4 which vertically penetrates through the inner cavity 2 of the body 1, the upper part of the rotating shaft 4 is in rotary fit with the top wall of the body 1 through an upper bearing 5, and the lower part of the rotating shaft 4 is in rotary fit with the bottom wall of the body 1 through a lower bearing 6; a clamping groove 7 matched with the air baffle 3 is formed in the middle of the rotating shaft 4, and an assembly hole penetrating through the rotating shaft 4 is formed in the bottom of the clamping groove 7; one end part of the gas baffle 3 is clamped in the clamping groove 7, the gas baffle 3 is connected with the gas baffle 3 through a bolt 8 penetrating through the gas baffle 3 and the assembling hole, and a compression nut 9 used for compressing the rotating shaft 4 is connected onto the bolt 8. The rotary connection structure is simple in structure and convenient to install and use.

The rotation angle resetting structure specifically comprises:

the top end of the rotating shaft 4 extends to the upper part of the body 1 and is connected with an upper positioning plate 10, the upper positioning plate 10 is downwards connected with a plurality of upper positioning bulges 11, each upper positioning bulge 11 is uniformly arranged along the circumferential direction of the upper positioning plate 10, and an upper positioning groove 12 is formed between every two adjacent upper positioning bulges 11;

the top wall of the body 1 at the upper bearing 5 is upwards connected with a plurality of lower positioning bulges 13, and the top of each lower positioning bulge 13 radially extends to the upper part of the outer ring of the upper bearing 5;

a return spring 14 is pressed between the upper bearing 5 and the upper positioning plate 10, the top end of the return spring 14 is clamped into the upper positioning groove 12, the bottom end of the return spring 14 is in pressure connection with the lower positioning bulge 13, and the circumferential position of the return spring is limited by the lower positioning bulge 13;

the top end of the return spring 14 is defined in its circumferential position by the upper positioning slot 12 and the bottom end of the return spring 14 is defined in its circumferential position by the lower positioning slot, so that the return spring 14 forms a torsion spring structure. When the wind pushes the air baffle 3 to rotate, the return spring 14 is twisted under the limiting action of the upper positioning groove 12 and the lower positioning protrusion 13 to generate a torque, and when the torque generated by the return spring 14 and the torque generated by the wind to the air baffle 3 are balanced, the position of the air baffle 3 is naturally fixed.

The rotation angle reset structure has the advantages of simple structure, lower material cost, more convenient processing, pure mechanical structure for playing the reset role and very reliable work.

The downstream end of the body 1 is provided with a clamping plate 15 matched with the upstream air inlet pipeline, and the clamping plate 15 is provided with a buckle bulge or a clamping groove 16 matched with the clamping groove or the buckle bulge on the upstream air inlet pipeline. The structure of the clamping plate 15 is convenient for fixing the utility model together with the joint of the upstream air inlet pipeline.

The top wall of the inner cavity 2 at the reset position is downwards connected with an upper stop block 17, the top wall of the inner cavity 2 at the reset position is upwards connected with a lower stop block 18, and the upper stop block 17 and the lower stop block 18 are used for blocking the air baffle plate 3 to rotate in the direction opposite to the airflow.

The utility model also discloses an air cleaner who uses above-mentioned variable air inlet, including last casing and the lower casing that links to each other from top to bottom, air cleaner's lower casing connection body 1's low reaches end. The air cleaner is conventional in the art, and its upper and lower cases are not shown.

The utility model discloses in, body 1 and gas shield 3's material all preferably adopt PP-GF30, can last the work under 110 ℃'s temperature condition, and clearance nature work under 130 ℃'s high temperature satisfies the operational environment who takes the turbocharged system engine.

Adopt the utility model discloses a structure, when engine air input is big, the utility model discloses a ventilation volume is big, the power that resets of wind-force turned angle reset structure for the rotation angle of air baffle 3 changes, and is balanced up to reaching wind-force and the power that resets. When the ventilation volume is reduced, the rotation angle of the air baffle 3 is changed under the action of the reset force until the wind power and the reset force reach a new balance, or the air baffle 3 is completely reset. The utility model discloses big or small self-adaptation adjustment according to engine air input keeps off the gas degree, and the air input is more high more less keeping off the gas degree, therefore stops the engine noise as far as possible under the prerequisite that satisfies engine air input, helps solving whole car NVH problem.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents of the present invention may be made without departing from the spirit and scope of the invention, which is intended to be covered by the appended claims.

Claims

1. The variable air inlet comprises a tubular body, the body is provided with an inner cavity for passing air, the air flow direction is the downstream direction, the upstream end of the body is used for being connected with an air inlet pipeline communicated with the atmosphere, and the downstream end of the body is used for being connected with an air filter, and the variable air inlet is characterized in that:

2. The variable intake of claim 1, wherein: the rotary connecting structure comprises a rotating shaft which vertically penetrates through the inner cavity of the body, the upper part of the rotating shaft is in rotating fit with the top wall of the body through an upper bearing, and the lower part of the rotating shaft is in rotating fit with the bottom wall of the body through a lower bearing; the middle part of the rotating shaft is provided with a clamping groove matched with the air baffle, and the bottom of the clamping groove is provided with an assembling hole penetrating through the rotating shaft; one end part of the gas baffle is clamped in the clamping groove, the gas baffle is connected with the gas baffle through a bolt penetrating through the gas baffle and the assembling hole, and a compression nut used for compressing the rotating shaft is connected onto the bolt.

3. The variable intake of claim 2, wherein: the rotation angle resetting structure specifically comprises:

the upper bearing is provided with a positioning boss, the upper positioning plate is provided with a positioning groove, the lower positioning boss is provided with a positioning hole, and the positioning hole is provided with a positioning hole.

4. The variable intake according to any one of claims 1 to 3, wherein: the body low reaches end is equipped with the cardboard with the protruding looks adaptation of upstream air intake pipe, is equipped with on the cardboard to be used for with the buckle groove or buckle protruding looks adaptation's of joint groove or buckle on the upstream air intake pipe buckle protruding or joint groove.

5. The variable intake of claim 4, wherein: the inner cavity roof of reset position department is connected with the dog down downwards, and the inner cavity roof of reset position department is connected with down the dog upwards, goes up the dog and is used for blockking that the gas shield is rotatory to the direction of contrary air current with lower dog.

6. An air cleaner using the variable intake port as claimed in claim 5, comprising an upper case and a lower case connected to each other, wherein: the lower housing of the air cleaner is coupled to the downstream end of the body.