CN210195902U - Air inlet flow guide structure - Google Patents

Abstract

The utility model provides an intake water conservancy diversion structure belongs to car technical field. It has solved the poor problem of current car air intake system rain-proof snow performance. This air inlet water conservancy diversion structure includes ventilation part and protective housing, and the ventilation part has the main gas port, and protective housing is including the guard plate that is located main gas port the place ahead and the cover body that links to each other with the ventilation part, and protective housing has the airflow channel of intercommunication main gas port, and airflow channel is including the first exhaust outlet that feeds through external air inlet and outside discharge filth, and first exhaust outlet is located the below of air inlet, and the guard plate has the water conservancy diversion face towards the ventilation part in the exit of first exhaust outlet, the water conservancy diversion face downward sloping sets up. This air intake water conservancy diversion structure has the advantage that improves automobile air intake system rain-proof snow performance.

Description

Air inlet flow guide structure

Technical Field

The utility model belongs to the technical field of the car, a water conservancy diversion structure admits air is related to.

Background

The engine air intake system is a powered accessory system that provides fresh air to the engine. The engine air intake system includes intake pipe, air cleaner and outlet duct, and when the car went, external air current got into by the intake pipe, filtered the air through air cleaner, exported to launching the air intake manifold by the outlet duct again, and air cleaner includes the filter core, and through keeping the filter core dry, can reduce the air resistance that admits air, it is abundant to make the engine admit air, improves the efficiency of admitting air.

Among the prior art, the intake pipe is arranged in car air intake grid rear, and the air inlet of intake pipe is in the position of openly facing the wind, and when the car went in sleet weather, sleet directly got into the intake pipe along with the air current, was filtered sleet by air cleaner again, and the rainwater leads to the filter core water absorption volume big, and then leads to the air intake resistance increase, shortens the filter core life-span, influences the performance of engine, and snowflake is difficult for melting, and snowflake will block off the air inlet when serious, leads to the intake pipe can't admit air, causes the unable operation of engine. In order to avoid the problem that the arrangement position of an air inlet pipe is usually required to be changed in a conventional and easily-thought mode of an engine air inlet system due to rain and snow blockage, if the direction of an air inlet of the air inlet pipe is changed by an arm, the situation that the front of the air inlet is over against the rear of an automobile air inlet grille, namely the air inlet faces the inner side of an engine compartment, but the temperature of the engine compartment is high, high-temperature air flow enters the engine, and then the performance of.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide an air inlet flow guide structure, the technical problem of solution is how to improve air intake system's rain-proof snow performance.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a water conservancy diversion structure admits air, includes the piece of ventilating, the piece of ventilating has the main gas port, its characterized in that, the water conservancy diversion structure of admitting air still includes the protection cover shell, the protection cover shell is including the guard plate that is located main gas port the place ahead and the cover body that links to each other with the piece of ventilating, the protection cover shell has the airflow channel of intercommunication main gas port, airflow channel is including the external air inlet of intercommunication and the first drain hole to the external exhaust filth, first drain hole is located the below of air inlet, the guard plate has the water conservancy diversion face towards the piece of ventilating in the exit of first drain hole, water conservancy diversion face downward sloping sets up.

The utility model provides a protective housing can use on current automobile engine air intake system, and the piece of ventilating of this application is located the intake pipe of car air inlet grid rear promptly, and the main gas port of intake pipe is just to the grid that admits air. The principle of the front part of the air inlet flow guide structure is as follows: the cover shell is connected with the ventilating piece, when the automobile runs in rainy and snowy weather and rain and snow pass through an air inlet grid of the automobile along with air, a protection plate arranged in front of the main air port shields most of the rain and snow which gushes towards the front of the main air port, and meanwhile, a small part of the rain and snow and the rain and snow flowing in the engine compartment enter an air flow channel of the protection cover shell along with air flow from the air inlet, and the first sewage outlet is positioned below the air inlet because the rain and snow have a certain weight, so that a small part of the rain and snow entering from the air inlet falls downwards, namely the rain and snow fall towards the first sewage outlet, and the rain and snow are discharged out of the air flow channel to improve the; after sleet discharged from first drain outlet, sleet contact water conservancy diversion face, slope downwardly extending's water conservancy diversion face makes the water conservancy diversion face have the slope, make sleet discharge along the water conservancy diversion face under self action of gravity, improve the discharge velocity of first drain outlet sleet, furthest avoids sleet to pile up in first drain outlet below, avoid first drain outlet to be blockked up by sleet, and simultaneously, the water conservancy diversion face makes the guard plate play the effect of sheltering from first drain outlet, avoid a large amount of air currents to get into first drain outlet, only supply a small amount of air currents to get into first drain outlet, in order to play the mediation effect to first drain outlet, further avoid first drain outlet to be blockked up by sleet, thereby further improve air intake system's rain and snow resistance.

In the above air intake flow guiding structure, the flow guiding surface is arc-shaped. When rain and snow contact the guiding surface, be curved guiding surface and reduce the sleet flow resistance for sleet flows smoothly, improves the discharge velocity of first drain mouth sleet, further avoids first drain mouth to be blockked up by sleet, thereby further improves air intake system's sleet proof performance.

In the aforementioned air intake flow guide structure, the air flow passage is located between the protection plate and the cover body, the inner wall of the protection plate has a flat surface which faces the air outlet and is inclined downward from one side far away from the air outlet to one side close to the air outlet, and the flat surface is connected with the flow guide surface and is in smooth transition. After sleet got into airflow channel, direct sleet to the sleet by the straight face that the slope set up downwards, smooth and smooth transition makes sleet flow smooth and easy, reduces the resistance to sleet as far as possible to accelerate sleet's derivation speed, further avoid first drain mouth to be blockked up by sleet, thereby further improve air intake system's sleet-proof performance.

In the above air intake flow guiding structure, at least one flow dividing plate for dividing the first drain outlet is arranged on the flow guiding surface. When sleet drops to first drain by the air inlet when, raindrop and snow piece have certain decurrent impact force, raindrop and snow piece striking on the flow distribution plate for raindrop and snow piece scatter, and then accelerate sleet's derivation speed, make sleet be difficult for blockking up first drain, improve air intake system's rain-proof snow performance from this.

In the above-mentioned structure of leading to water conservancy diversion of admitting air, the cover body is including the support seat that connects the gas blocking frame of guard plate and connect the member of ventilating and communicate with main gas port, the support seat passes through the gas blocking frame and links to each other with the guard plate, airflow channel is enclosed to close by guard plate, gas blocking frame and support seat and forms. Because airflow channel is by the guard plate, it forms to enclose to close to hinder gas frame and supporting seat, and supporting seat intercommunication air-tight spare and with main gas port intercommunication, make airflow channel's gas outlet locate on the supporting seat, the gas outlet is located between air inlet and the first drain outlet promptly, because hinder gas frame and separate guard plate and supporting seat, make the guard plate be kept away from to the gas outlet, and then make the rain and snow that gets into airflow channel from the air inlet difficult entering gas outlet that turns round, but the whereabouts just discharges from first drain outlet under self action of gravity, improve air intake system's rain and snow resistance from this.

In foretell water conservancy diversion structure of admitting air, it includes two first choke boards to hinder the gas frame, the supporting seat links to each other with the both sides of guard plate through two first choke boards, hinder the gas frame still including the second choke board of joint support seat, two first choke boards, the second choke board is by one side of joint support seat to the one side downward sloping setting of keeping away from the supporting seat, the air inlet is enclosed to close by guard plate, supporting seat and two first choke boards and is formed, first blowdown mouth is enclosed to close by guard plate, second choke board and two first choke boards and forms, the quantity of flow distribution plate is three and all links to each other with the second choke board, adjacent two have the clearance between the flow distribution plate. When the protective plate shields most of the rain and snow which gushes towards the front of the main air port, the two first air baffle plates fill the gap between the two sides of the protective plate and the supporting seat to prevent the rain and snow from bypassing the protective plate and entering the air flow channel laterally, meanwhile, when rain and snow enter the airflow channel from the air inlet and fall to the second air baffle plate, the second air baffle plate which is obliquely arranged assists the rain and snow to slide towards the first dirt discharge port on one hand, and prevents the rain and snow from being accumulated at the port edge of the first dirt discharge port on the other hand, so that the air in the airflow channel is prevented from bringing the rain and snow which are retained on the second air baffle plate into the air outlet, the splitter plate is connected with the second air baffle plate, and the connection strength of the splitter plate is improved, when the rain and snow are discharged from the first sewage discharge port, the rain and snow simultaneously impact on the three splitter plates to accelerate the dispersion speed of rain drops and snow blocks, and then make the difficult first drain outlet of jam of sleet, improve air intake system's rain and snow resistance from this.

In the aforementioned air intake flow guiding structure, the support base includes a bottom plate connected to the second choke plate and the two first choke plates, and the bottom plate is provided with an air outlet and an auxiliary air inlet for air to flow into. The air outlet makes the air current in the airflow channel flow into the main air port, and the auxiliary air inlet accelerates the air current flow in the airflow channel on the one hand, improves the air inlet efficiency of the main body port, and on the other hand, the air current that is admitted by the auxiliary air inlet can generate convection current with the air current that is got into by the air inlet, makes a small amount of sleet that flows towards the air outlet blown out, then falls, discharges from first drain outlet at last, improves air intake system's sleet prevention performance from this.

In the above air intake flow guiding structure, the bottom plate is provided with a separation plate connected to the second choke plate, and the separation plate is located between the air outlet and the auxiliary air inlet. The division board increases the area of contact of bottom plate and second choke plate on the one hand for the supporting seat is connected firmly with the choke frame, improves the bulk strength of protection housing, and on the other hand leads the air current that gets into by supplementary air inlet, avoids directly getting into the gas outlet along with a small amount of sleet that the air current got into from supplementary air inlet, improves air intake system's rain and snow resistance performance from this.

In foretell inlet air water conservancy diversion structure, the supporting seat still includes the connection bottom plate and with the connection frame of gas outlet intercommunication, the connection frame inlays the main gas mouth and just with the joint of the member inner wall that ventilates. When the protective housing is connected with the ventilation piece, the connecting frame is embedded into the main air port, so that the outer wall of the connecting frame is clamped with the inner wall of the ventilation piece, the protective housing can be fixed on the ventilation piece, the main air port of the ventilation piece is communicated with the air outlet of the protective housing, namely, the air outlet of the protective housing is positioned in the ventilation piece, and the possibility of leakage of air flow from the air outlet to the main air port is reduced.

In foretell inlet air water conservancy diversion structure, the piece that ventilates still has the second drain and with the vice gas port that main gas port orientation is the same, the second drain is located the rear of vice gas port and just to setting up with vice gas port, it is equipped with the structure that opens and shuts that can shutoff second drain to ventilate on the piece. The setting of vice gas port improves the efficiency of admitting air of ventilation spare, and when the car went, the open-close structure opened under the air current effect that gets into vice gas port for along with the air current from the sleet that vice gas port got into discharge from the second drain, when taking the car to be in the idle operating mode, the open-close structure shutoff second drain blockked engine compartment rear portion high temperature heat current and flows in, thereby improves the rain-proof snow performance of air intake system, improves the air intake efficiency of ventilation spare simultaneously.

Compared with the prior art, the utility model provides a pair of inlet guide structure has following advantage:

1. when the rain and snow pass through the air inlet grid of the automobile along with the air, the protection plate shields most of the rain and snow which flow towards the main air port, a small amount of the rain and snow which enter from the air inlet of the airflow channel along with the airflow drops under the action of self gravity and is discharged from the first sewage outlet, and the small amount of the rain and snow in the airflow channel is prevented from entering the air outlet, so that the rain and snow prevention performance of the air inlet system is improved.

2. When sleet passes the air inlet grid of car along with the air, the guard plate shelters from a large amount of air currents and gets into airflow channel by first drain hole, avoids sleet towards the air inlet refluence, simultaneously, after sleet discharges from first drain hole, sleet falls on the water conservancy diversion face, leads to by the flow direction of water conservancy diversion face sleet, avoids sleet to pile up in first drain hole below, avoids first drain hole to be blockked up by sleet to further improve air intake system sleet proof ability.

Drawings

Fig. 1 is a schematic view of the overall structure of the intake air guide structure.

Fig. 2 is a schematic view of the overall structure of the present protective enclosure.

Fig. 3 is a longitudinal sectional view of the entire structure of fig. 2.

Fig. 4 is a schematic view of the whole structure of the ventilation tube.

In the figure, 1, a breather; 11. a primary air port; 12. a secondary air port; 13. a second sewage draining outlet; 2. a protective housing; 3. a protection plate; 31. a flow guide surface; 32. flat surface; 4. a cover body; 41. a gas blocking frame; 411. a first choke plate; 412. a second choke plate; 42. a supporting seat; 421. a base plate; 422. a connecting frame; 5. an air flow channel; 51. an air inlet; 52. a first drain port; 53. an air outlet; 54. an auxiliary air inlet; 6. a flow distribution plate; 7. a separator plate; 8. an opening and closing structure; 81. and (5) turning over the plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the air intake guide structure includes an air vent 1 and a protective casing 2.

The air vent 1 has a main air port 11, as shown in fig. 2, the protective cover case 2 includes a protective plate 3 positioned in front of the main air port 11 and partially blocking the main air port 11, and a cover body 4 connected to the air vent 1, the cover body 4 includes a baffle frame 41 connected to the protective plate 3 and a support base 42 connected to the air vent 1 and communicating with the main air port 11, the baffle frame 41 includes two first baffle plates 411, the support base 42 is connected to both sides of the protective plate 3 through the two first baffle plates 411, as shown in fig. 3, the protective plate 3, the baffle frame 41 and the support base 42 enclose to form an air flow path 5 communicating with the main air port 11, the air flow path 5 includes an air inlet 51 communicating with the outside and a first drain port 52 draining dirt to the outside, the air inlet 51 is positioned at the top of the protective cover case 2, the first drain port 52 is positioned at the bottom of the protective cover case 2, the baffle frame 41 further includes a second baffle plate 412 connecting the support base 42 and the two first baffle, the second choke plate 412 is inclined downwards from the side connecting the support seat 42 to the side far away from the support seat 42, the air inlet 51 is formed by the protective plate 3, the support seat 42 and the two first choke plates 411, the first drain port 52 is formed by the protective plate 3, the support seat 42 and the second choke plate 412, the protective plate 3 has a flow guide surface 31 facing the air vent 1 at the outlet of the first drain port 52, the flow guide surface 31 is inclined downwards, the inner wall of the protective plate 3 has a flat surface 32 inclined downwards from the side far away from the main air port 11 to the other side near the main air port 11, the flow guide surface 31 is arc-shaped, the flat surface 32 is connected with the flow guide surface 31 and smoothly transits, the diversion surface 31 is provided with three diversion plates 6 connected with the second choke plate 412, and in the actual production, the number of the splitter plates 6 may be two or four, and a gap is formed between two adjacent splitter plates 6.

The supporting seat 42 includes a bottom plate 421 connected to the second choke plate 412 and the two first choke plates 411, the bottom plate 421 is provided with an air outlet 53 and an auxiliary air inlet 54 for air to flow in, the bottom plate 421 is provided with a separating plate 7 connected to the second choke plate 412, the separating plate 7 is located between the air outlet 53 and the auxiliary air inlet 54, the supporting seat 42 further includes a connecting frame 422 connected to the bottom plate 421 and communicated with the air outlet 53, in this embodiment, the outer frame wall of the connecting frame 422 is provided with four buckles,

as shown in fig. 4, the ventilation part 1 includes an upper casing and a lower casing, in this embodiment, the upper casing is connected with a lower casing joint, in actual production, the upper casing is connected with the lower casing through a fastener, bayonets corresponding to the fastening positions of the connecting frame 422 are arranged on the inner casing wall of the upper casing and the inner casing wall of the lower casing, the ventilation part 1 further has a second sewage discharge outlet 13 and an auxiliary air port 12 facing the same direction of the main air port 11, the auxiliary air port 12 and the main air port 11 are formed by enclosing the upper casing and the lower casing, the second sewage discharge outlet 13 is arranged behind the auxiliary air port 12 and is arranged right opposite to the auxiliary air port 12, an opening and closing structure 8 capable of blocking the second sewage discharge outlet 13 is arranged on the upper casing, the opening and closing structure 8 includes a turnover plate 81 completely blocking the second sewage discharge outlet 13, and one side of the turnover plate 81 is.

When the air inlet diversion structure is assembled, the upper shell and the lower shell are clamped firstly, and then the connecting frame 422 is embedded into the main air port 11 of the ventilation part 1, so that the connecting frame 422 is clamped with the upper shell and the lower shell, the protective housing 2 is connected with the ventilation part 1, the air flow channel 5 is communicated with the main air port 11, and meanwhile, the turnover plate 81 is hinged to the upper shell, and the assembly of the air inlet diversion structure can be completed. The protective cover 2 of the application can be applied to the air inlet system of the existing automobile engine, when the automobile runs in rainy and snowy weather and rain and snow pass through the air inlet grid of the automobile along with air, the protective plate 3 shields most of the rain and snow which flow towards the right front of the main air port 11 and a great amount of airflow which flows towards the first dirt outlet 52, two first air baffle plates 411 shield the rain and snow which flow towards the side of the main air port 11, a small amount of rain and snow and the rain and snow which flow in the engine compartment enter the airflow channel 5 of the protective cover 2 from the air inlet 51 and the auxiliary air inlet 54 along with the airflow, the rain and snow which enter the air inlet 51 fall towards the first dirt outlet 52 under the self gravity, the rain and snow which enter the auxiliary air inlet 54 are blocked by the partition plate 7, and then a part of the rain and snow directly fall out from the first dirt outlet 52, the other part of the rain and snow fall onto the second air baffle plate 412, and the second air baffle plate 412 guides the, and then discharge from first drain port 52, avoid sleet to pile up in first drain port 52 top, when sleet through first drain port 52, raindrop and snow piece have certain impact force, flow distribution plate 6 breaks away massive snow piece, avoid sleet to block up first drain port 52, after sleet discharge first drain port 52, sleet through water conservancy diversion face 31 landing, avoid sleet to pile up in first drain port 52 below, thereby improve air intake system's sleet proof performance.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the air vent 1, the main air port 11, the auxiliary air port 12, the second drain outlet 13, the protective cover 2, the protective plate 3, the flow guide surface 31, the flat surface 32, the cover 4, the air blocking frame 41, the first air blocking plate 411, the second air blocking plate 412, the support seat 42, the bottom plate 421, the connection frame 422, the air flow channel 5, the air inlet 51, the first drain outlet 52, the air outlet 53, the auxiliary air inlet 54, the diversion plate 6, the isolation plate 7, the opening and closing structure 8, the turning plate 81, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a water conservancy diversion structure admits air, includes ventilation part (1), ventilation part (1) has main gas port (11), its characterized in that, admits air the water conservancy diversion structure and still includes protective housing (2), protective housing (2) are including guard plate (3) that are located main gas port (11) the place ahead and cover body (4) that link to each other with ventilation part (1), protective housing (2) have airflow channel (5) of intercommunication main gas port (11), airflow channel (5) are including first drain hole (52) of external air inlet (51) of intercommunication and the outside exhaust filth, first drain hole (52) are located the below of air inlet (51), guard plate (3) have water conservancy diversion face (31) towards ventilation part (1) in the exit of first drain hole (52), water conservancy diversion face (31) downward sloping setting.

2. An air intake deflector structure as claimed in claim 1, wherein the deflector surface (31) is arcuate.

3. An air intake and flow guiding structure as claimed in claim 2, wherein the air flow passage (5) is located between the protection plate (3) and the cover (4), the inner wall of the protection plate (3) has a flat surface (32) which is inclined downwards towards the main air opening (11) from the side far away from the main air opening (11) to the side near the main air opening (11), and the flat surface (32) is connected with the flow guiding surface (31) in a smooth transition.

4. An air intake and flow guiding structure as claimed in claim 3, wherein the cover (4) comprises an air blocking frame (41) connected to the protection plate (3) and a support base (42) connected to the air inlet (1) and communicating with the main air port (11), the support base (42) is connected to the protection plate (3) through the air blocking frame (41), and the air flow passage (5) is defined by the protection plate (3), the air blocking frame (41) and the support base (42).

5. An air intake and flow guiding structure as claimed in claim 4, wherein the air blocking frame (41) comprises two first air blocking plates (411), the supporting base (42) is connected with two sides of the protection plate (3) through the two first air blocking plates (411), the air blocking frame (41) further comprises a second air blocking plate (412) connected with the supporting base (42) and the two first air blocking plates (411), the second air blocking plate (412) is arranged from one side connected with the supporting base (42) to the side far away from the supporting base (42) in a downward inclined manner, the air inlet (51) is formed by the protection plate (3), the supporting base (42) and the two first air blocking plates (411) in a surrounding manner, and the first air outlet (52) is formed by the protection plate (3), the second air blocking plate (412) and the two first air blocking plates (411) in a surrounding manner.

6. An air intake flow guiding structure as claimed in claim 5, wherein the flow guiding surface (31) is provided with at least one splitter plate (6) connected to the second choke plate (412), and a gap is provided between two adjacent splitter plates (6).

7. The structure of claim 5 or 6, wherein the support base (42) comprises a bottom plate (421) connected to the second choke plate (412) and the two first choke plates (411), and the bottom plate (421) is provided with an air outlet (53) and an auxiliary air inlet (54) for air to flow in.

8. An air inlet flow guiding structure as claimed in claim 7, wherein a partition plate (7) connected to the second choke plate (412) is disposed on the bottom plate (421), and the partition plate (7) is located between the air outlet (53) and the auxiliary air inlet (54).

9. The air inlet flow guide structure as claimed in claim 7, wherein the support base (42) further comprises a connecting frame (422) connected to the bottom plate (421) and communicated with the air outlet (53), and the connecting frame (422) is embedded into the main air port (11) and clamped with the inner wall of the ventilation member (1).

10. The air inlet flow guide structure as claimed in any one of claims 1 to 6, wherein the air vent (1) further comprises a second sewage discharge outlet (13) and an auxiliary air port (12) facing the same direction as the main air port (11), the second sewage discharge outlet (13) is located behind the auxiliary air port (12) and is opposite to the auxiliary air port (12), and the air vent (1) is provided with an opening and closing structure (8) capable of blocking the second sewage discharge outlet (13).

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