Liquid collecting box structure and vehicle

Abstract

The utility model discloses a liquid collecting box structure and a vehicle, and belongs to the technical field of automobile part design and manufacture, the liquid collecting box structure comprises a liquid collecting box body, the liquid collecting box body is arranged at the joint of an air filter air outlet pipe and a crankcase ventilation pipe; a flow guide plate is arranged in the liquid collection box body, and a concave-convex structure is arranged on the surface of the flow guide plate; and an oil-gas mixture in the crankcase ventilation pipe enters the liquid collection box body to collide with the flow guide plate and then enters the air filter air outlet pipe. The flow guide plate with the concave-convex structure on the surface is arranged in the liquid collection box body, airflow can hit on the wall surfaces of the structure in all directions, the collision opportunity and the collision area of the airflow and the wall surfaces of the flow guide plate are increased, liquid drops can be separated out of an oil-gas mixture, the content of water molecules in the oil-gas mixture is reduced, and the oil-gas separation efficiency is improved. The problem that the crankcase ventilation pipe joint is frozen and blocked in severe cold areas in winter is effectively relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts design and manufacturing, and particularly relates to a liquid collecting box structure and a vehicle. Background Art

[0002] In some alpine regions, the temperature is often lower than -30°C. In such a natural environment, the interface between the crankcase ventilation pipe and the air filter outlet pipe of a fuel vehicle often freezes and blocks, resulting in problems such as an increase in the pressure of the engine crankcase, the disconnection of the engine crankshaft oil seal, or oil spraying.

[0003] Currently, most vehicles on the market have no active countermeasures for the problem of ice blockage in the crankcase ventilation pipe. In a cold environment, the crankcase gas coming out of the crankcase ventilation pipe, at the interface between the crankcase ventilation pipe and the air filter outlet pipe, due to the accumulation of hot and cold air, the moisture in the gas freezes when it meets the cold, easily causing the crankcase ventilation pipe to be blocked by ice here, resulting in an increase in crankcase pressure, and thus causing oil leakage from the oil seal, the detachment of the oil seal, and damage to the engine, with serious consequences.

[0004] Some vehicle models adopt the electric heating scheme for the crankcase ventilation pipe joint. The electric heating scheme can effectively solve the problem of ice blockage in the crankcase ventilation pipe, but the cost of the electric heating element is very high, and it requires the intervention of electronic control data for control, increasing the development difficulty. At the same time, there is a certain fire risk in applying electric heating, so the electric heating scheme is very rarely used in vehicle models on the market.

[0005] Some vehicle models adopt the method of coolant heating. This method requires adding an independent coolant circulation device, and both the number of parts and the volume of the parts increase accordingly. In addition to the increase in cost, it is not conducive to the layout in the cramped engine compartment space and is not conducive to the control of the overall vehicle cost and weight. Content of the Utility Model

[0006] The utility model aims to at least solve the technical problem that in the prior art, the interface between the crankcase ventilation pipe and the air filter outlet pipe of a fuel vehicle often freezes and blocks under low-temperature conditions.

[0007] To this end, one object of the utility model is to propose a liquid collecting box structure, including a liquid collecting box body, and the liquid collecting box body is arranged at the connection between the air filter outlet pipe and the crankcase ventilation pipe.

[0008] A flow guiding plate is arranged inside the liquid collecting box body, and the surface of the flow guiding plate is provided with a concave-convex structure.

[0009] Further, the concave-convex structure includes a plurality of convex blocks, and the plurality of convex blocks are connected to each other to form alternately distributed protruding parts and recessed parts.

[0010] Further, the shape of the convex block is a polyhedron, and the cross-section of the polyhedron is an equilateral triangle.

[0011] Further, the concave-convex structure includes a plurality of grid units, and the surface of the grid unit is provided with a recessed part.

[0012] Further, the concave-convex structure includes a plurality of convex blocks arranged at intervals, and a recessed part is formed between adjacent convex blocks.

[0013] Further, the concave-convex structure includes a plurality of strip-shaped convex blocks, and a groove is formed between adjacent strip-shaped convex blocks.

[0014] Further, a liquid collection box air inlet for connecting with a crankcase ventilation pipe is opened on the liquid collection box body; a liquid collection box air outlet communicating with the inside of the liquid collection box body is opened on the outer wall of the air filter outlet pipe.

[0015] Further, the deflector includes a first deflector and a second deflector; the first deflector is arranged close to the liquid collection box air inlet, and the second deflector is arranged close to the liquid collection box air outlet; the first deflector and the second deflector are arranged parallel to the width direction of the liquid collection box body;

[0016] A first air passage for air flow is formed between the first deflector and the side wall of the air filter outlet pipe; a second air passage for air flow is formed between the side of the second deflector away from the first air passage and the liquid collection box body.

[0017] Further, the concave-convex structure is provided on both side plates of the first deflector; the concave-convex structure is provided on the surface of the second deflector close to the liquid collection box air outlet; the concave-convex structure on the second deflector includes a plurality of strip-shaped convex blocks, and a groove is formed between adjacent strip-shaped convex blocks, and the groove is arranged parallel to the liquid collection box air outlet.

[0018] The present invention provides a vehicle, including any one of the above liquid collection box structures.

[0019] A liquid collection box structure and a vehicle of the present invention have the following beneficial effects:

[0020] In a liquid collection box structure of the present invention, by arranging a deflector with a concave-convex structure on the surface inside the liquid collection box body, the air flow will hit the wall surfaces in all directions of the structure, increasing the collision chance and collision area between the air flow and the wall surface of the deflector, which is beneficial to the precipitation of liquid droplets from the oil-gas mixture, reducing the water molecule content in the oil-gas mixture, and effectively alleviating the problem of ice blockage at the joint of the crankcase ventilation pipe in severely cold areas in winter. Description of the Drawings

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments described in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic diagram of the structure of a liquid collection box in an embodiment of the present invention Figure 1 ;

[0023] Figure 2 is a schematic diagram of the structure of a liquid collection box in an embodiment of the present invention Figure 2 ;

[0024] Figure 3 is a schematic diagram of the deflector and the air filter outlet pipe of a liquid collection box structure in an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of the lid and the deflector of a liquid collection box structure in an embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of the first deflector of a liquid collection box structure in an embodiment of the present invention;

[0027] Figure 6 is a schematic diagram of the second deflector of a liquid collection box structure in an embodiment of the present invention;

[0028] Figure 7 is a schematic diagram of the air flow direction of a liquid collection box structure in an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100, liquid collection box body; 101, box body; 102, lid; 103, liquid collection box air inlet; 104, first deflector; 1041, first mounting bracket; 105, second deflector; 1051, second mounting bracket; 200, air filter outlet pipe; 201, liquid collection box air outlet. Detailed implementation manners

[0031] Reference is made herein to the various solutions and features of the present invention with reference to the drawings.

[0032] It should be understood that various modifications can be made to the embodiments applied herein. Therefore, the above description should not be regarded as a limitation, but only as an example of the embodiments. Those skilled in the art will think of other modifications within the scope and spirit of the present invention.

[0033] The drawings included in and forming a part of the specification illustrate embodiments of the present utility model, and together with the general description of the present utility model given above and the detailed description of the embodiments given below are used to explain the principles of the present utility model.

[0034] These and other features of the present utility model will become apparent from the following description of the preferred forms of the embodiments given by way of non-limiting examples with reference to the drawings.

[0035] It should also be understood that although the present utility model has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present utility model, which have the features as described in the claims and thus are all within the protection scope defined hereby.

[0036] When combined with the drawings, the above and other aspects, features and advantages of the present utility model will become more apparent in view of the following detailed description.

[0037] Specific embodiments of the present utility model will be described hereinafter with reference to the drawings; however, it should be understood that the embodiments claimed are merely examples of the present utility model, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present utility model with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but are merely used as a basis and representative basis for the claims to teach those skilled in the art to use the present utility model in substantially any suitable detailed structure in a variety of ways.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0039] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0040] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0041] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through additional features therebetween.

[0042] In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature.

[0043] In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

[0045] The width direction of the liquid collecting box in the present utility model is Figure 1 the Y-axis direction in

[0046] The length direction of the liquid collecting box in the present utility model is Figure 1 the X-axis direction in

[0047] The height direction of the liquid collecting box in the present utility model is Figure 1 the Z-axis direction in

[0048] Embodiment 1

[0049] As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a liquid collecting box structure, including a liquid collecting box body 100, and the liquid collecting box body is arranged at the connection of the air filter outlet pipe 200 and the crankcase ventilation pipe;

[0050] A liquid collecting box air inlet 103 for connecting with the crankcase ventilation pipe is arranged on the liquid collecting box body 100; a liquid collecting box air outlet 201 communicating with the inside of the liquid collecting box body 100 is arranged on the outer wall of the air filter outlet pipe 200;

[0051] A deflector plate is provided inside the liquid collecting box body 100. The surface of the deflector plate is designed with concave and convex structures. After the oil-gas mixture in the crankcase ventilation pipe enters the liquid collecting box body 100 and collides with the deflector plate, it enters the air filter outlet pipe 200.

[0052] The oil-gas mixture flowing out of the crankcase ventilation pipe is mainly composed of the oil-gas treated by the oil-gas separator in the engine cylinder head and the water droplet particles condensed from the water vapor due to the temperature reduction. The main function of the liquid collecting box of the present invention is to condense the water droplet particles in the oil-gas mixture inside the liquid collecting box, reduce the moisture entering the air filter outlet pipe, and reduce the probability of icing at the crankcase ventilation joint.

[0053] Specifically, the air flow continuously collides with the concave and convex structures on the deflector plate. Compared with a smooth wall surface, due to the design of this concave and convex structure, the air flow will hit the wall surfaces in all directions of this structure, increasing the collision opportunity and collision area between the air flow and the wall surface. Liquid droplets or liquid films will gradually form on the wall surface, which is more conducive to the attachment and precipitation of moisture. Part of the air flow will be rebounded by the wall surface and continue to flow with the air. The air will continue to collide with other concave and convex units on the deflector plate, and the speed of the residual liquid droplets in the air will also decrease. Due to the reduction of inertia and the longer residence time, under the action of gravity, partial sedimentation or attachment will also occur and finally remain inside the liquid collecting box. Due to the continuous precipitation of moisture, the number of liquid droplet particles flowing into the air filter outlet pipe decreases, and the probability of icing at the crankcase ventilation joint will be reduced.

[0054] A liquid collecting box structure of the present invention, by providing a deflector plate with concave and convex structures on the surface inside the liquid collecting box body 100, the air flow will hit the wall surfaces in all directions of this structure, increasing the collision opportunity and collision area between the air flow and the deflector plate wall surface, which is conducive to the precipitation of liquid droplets from the oil-gas mixture, reducing the content of water molecules in the oil-gas mixture, and effectively alleviating the problem of icing and blockage of the crankcase ventilation pipe joint in cold winter regions.

[0055] Embodiment 2

[0056] As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a liquid collecting box structure, including a liquid collecting box body 100, and the liquid collecting box body is arranged at the connection of the air filter outlet pipe 200 and the crankcase ventilation pipe;

[0057] A liquid collecting box air inlet 103 for connecting with the crankcase ventilation pipe is provided on the liquid collecting box body 100; a liquid collecting box air outlet 201 communicating with the inside of the liquid collecting box body 100 is provided on the outer wall of the air filter outlet pipe 200;

[0058] A flow guide plate is arranged inside the liquid collecting box body 100. The surface of the flow guide plate is designed with a concave-convex structure. After the oil-gas mixture in the crankcase ventilation pipe enters the liquid collecting box body 100 and collides with the flow guide plate, it enters the air filter outlet pipe 200.

[0059] The oil-gas mixture flowing out of the crankcase ventilation pipe is mainly composed of the oil-gas treated by the oil-gas separator in the engine cylinder head and the water droplet particles condensed from the water vapor due to the temperature reduction. The main function of the liquid collecting box of the present utility model is to make the water droplet particles in the oil-gas mixture condense in the liquid collecting box, reduce the moisture entering the air filter outlet pipe, and reduce the probability of icing at the crankcase ventilation joint.

[0060] Specifically, the air flow continuously collides with the concave-convex structure on the flow guide plate. Compared with the smooth wall surface, due to the design of this concave-convex structure, the air flow will hit the wall surfaces in all directions of the structure, increasing the collision chance and collision area between the air flow and the wall surface. Liquid droplets or liquid films will gradually form on the wall surface, which is more conducive to the attachment and precipitation of moisture. Part of the air flow will be rebounded by the wall surface and continue to flow with the air. The gas will continue to collide with other concave-convex units on the flow guide plate, and the speed of the residual liquid droplets in the gas will also decrease. Due to the reduction of inertia and the longer residence time, under the action of gravity, partial sedimentation or attachment will also occur and finally remain inside the liquid collecting box. Due to the continuous precipitation of moisture, the liquid droplet particles flowing into the air filter outlet pipe decrease, and the probability of icing at the crankcase ventilation joint will be reduced.

[0061] In a liquid collecting box structure of the present utility model, by arranging a flow guide plate with a concave-convex structure on the surface inside the liquid collecting box body 100, the air flow will hit the wall surfaces in all directions of the structure, increasing the collision chance and collision area between the air flow and the wall surface of the flow guide plate, which is conducive to the precipitation of liquid droplets from the oil-gas mixture, reducing the content of water molecules in the oil-gas mixture, and effectively alleviating the problem of icing and blockage at the crankcase ventilation pipe joint in cold winter regions.

[0062] The difference between this embodiment and the first embodiment is as follows:

[0063] The flow guide plate is arranged along the width direction of the liquid collecting box body 100; the liquid collecting box air inlet 103 is arranged on one side of the liquid collecting box body 100 away from the air filter outlet pipe 200.

[0064] The concave-convex structure includes a plurality of convex blocks, and the plurality of convex blocks are connected to each other to form alternately distributed raised portions and sunken portions. Specifically, the cross section of the convex block is semicircular, elliptical, triangular, trapezoidal, rectangular, polygonal or other special shapes. And / or,

[0065] The concavo-convex structure includes a plurality of bumps, the shape of the bumps being polyhedrons, the cross-section of the polyhedrons being equilateral triangles with side lengths in the range of 2 - 10 mm. And / or,

[0066] The concavo-convex structure includes a plurality of grid units, the grid units having a plurality of recessed portions, the cross-section of the recessed portions being semi-circular, elliptical, triangular, trapezoidal, rectangular or other irregular shapes. And / or,

[0067] A plurality of the grid units are arrayed longitudinally and horizontally to form the concavo-convex structure. Airflow will strike the walls of the structure in all directions, increasing the chance and area of collision between the airflow and the walls, and droplets or liquid films will gradually form on the walls, which is more conducive to the attachment and precipitation of moisture. And / or,

[0068] The concavo-convex structure includes a plurality of bumps arranged at intervals, and a recessed portion is formed between adjacent bumps. And / or,

[0069] The concavo-convex structure includes a plurality of strip-shaped bumps, and a groove is formed between adjacent strip-shaped bumps. Airflow will strike the walls of the structure in all directions, increasing the chance and area of collision between the airflow and the walls, and droplets or liquid films will gradually form on the walls, which is more conducive to the attachment and precipitation of moisture.

[0070] Embodiment 3

[0071] As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a liquid collecting box structure, including a liquid collecting box body 100, the liquid collecting box body being arranged at the connection of the air filter outlet pipe 200 and the crankcase ventilation pipe;

[0072] A liquid collecting box air inlet 103 for connecting with the crankcase ventilation pipe is arranged on the liquid collecting box body 100; a liquid collecting box air outlet 201 communicating with the inside of the liquid collecting box body 100 is arranged on the outer wall of the air filter outlet pipe 200;

[0073] A flow guiding plate is arranged inside the liquid collecting box body 100, and a concavo-convex structure is designed on the surface of the flow guiding plate. After the oil-gas mixture in the crankcase ventilation pipe enters the liquid collecting box body 100 and collides with the flow guiding plate, it enters the air filter outlet pipe 200.

[0074] The oil-gas mixture flowing out of the crankcase ventilation pipe is mainly composed of the oil-gas treated by the oil-gas separator in the engine cylinder head and the water droplet particles condensed from the water vapor due to the temperature reduction. The main function of the liquid collecting box of the present utility model is to make the water droplet particles in the oil-gas mixture condense in the liquid collecting box, reduce the moisture entering the air filter outlet pipe, and reduce the probability of icing at the crankcase ventilation joint.

[0075] Specifically, the air flow continuously collides with the concave-convex structure on the flow guide plate. Compared with a smooth wall surface, due to the design of this concave-convex structure, the air flow will hit the wall surfaces in all directions of this structure, increasing the collision opportunities and collision area between the air flow and the wall surface. Droplets or liquid films will gradually form on the wall surface, which is more conducive to the attachment and precipitation of moisture. Some of the air flow will be rebounded by the wall surface and continue to flow with the air. The gas will continue to collide with other concave-convex units on the flow guide plate, and the speed of the residual droplets in the gas will also decrease. Due to the reduction of inertia and the longer residence time, under the action of gravity, some sedimentation or attachment will also occur and finally remain inside the liquid collection box. Due to the continuous precipitation of moisture, the droplet particles flowing into the air filter outlet pipe decrease, and the probability of icing at the crankcase ventilation joint will be reduced.

[0076] A liquid collection box structure of the present utility model, by arranging a flow guide plate with a concave-convex structure on the surface inside the liquid collection box body 100, the air flow will hit the wall surfaces in all directions of this structure, increasing the collision opportunities and collision area between the air flow and the wall surface of the flow guide plate, which is conducive to the precipitation of droplets from the oil-gas mixture, reducing the water molecule content in the oil-gas mixture, and effectively alleviating the problem of ice blockage at the crankcase ventilation pipe joint in severely cold regions in winter.

[0077] The difference between this embodiment and the second embodiment lies in:

[0078] As Figure 4 、 Figure 5 and Figure 6 shown, the flow guide plate includes a first flow guide plate 104 and a second flow guide plate 105;

[0079] The first flow guide plate 104 is arranged close to the air inlet 103 of the liquid collection box, and the second flow guide plate 105 is arranged close to the air outlet 201 of the liquid collection box.

[0080] The first flow guide plate 104 is provided with a concave-convex structure. The concave-convex structure includes a plurality of convex blocks, and the plurality of convex blocks are connected to each other to form alternately distributed raised portions and recessed portions. Specifically, the cross-section of the convex block is semicircular, elliptical, triangular, trapezoidal, rectangular, polygonal or other special shapes. And / or,

[0081] The concave-convex structure includes a plurality of convex blocks, the shape of the convex block is a polyhedron, the cross-section of the polyhedron is an equilateral triangle, and the side length range is 2-10 mm. And / or,

[0082] The concave-convex structure includes a plurality of grid units, the grid unit has a plurality of recessed portions, and the cross-section of the recessed portion is semicircular, elliptical, triangular, trapezoidal, rectangular or other special shapes. And / or,

[0083] A plurality of the grid units form the concave-convex structure in an array along the longitudinal direction and the horizontal line. Airflow will strike the wall surfaces in all directions of this structure, increasing the collision chance and collision area between the airflow and the wall surfaces. Droplets or liquid films will gradually form on the wall surfaces, which is more conducive to the attachment and precipitation of moisture. And / or, the concave-convex structure includes a plurality of convex blocks arranged at intervals, and a concave portion is formed between adjacent convex blocks. And / or,

[0084] The concave-convex structure includes a plurality of strip-shaped convex blocks, and a groove is formed between adjacent strip-shaped convex blocks. Airflow will strike the wall surfaces in all directions of this structure, increasing the collision chance and collision area between the airflow and the wall surfaces. Droplets or liquid films will gradually form on the wall surfaces, which is more conducive to the attachment and precipitation of moisture.

[0085] The surface of the second flow guide plate 105 is also provided with a concave-convex structure, which is the same as the concave-convex structure on the first flow guide plate 104;

[0086] Or, the concave-convex structure of the second flow guide plate 105 includes a plurality of strip-shaped convex blocks, and a groove is formed between adjacent strip-shaped convex blocks. The side opening of the groove faces the air outlet 201 of the liquid collection box, which plays a role in guiding the airflow into the air filter outlet pipe.

[0087] As Figure 7 shown, a first air passage for airflow to flow is formed between the side of the first flow guide plate 104 away from the liquid collection box air inlet 103 and the side wall of the air filter outlet pipe 200;

[0088] A second air passage for airflow to flow is formed between the side of the second flow guide plate 105 away from the side wall of the air filter outlet pipe 200 and the liquid collection box body 100;

[0089] Such a design lengthens the flow length of the oil-gas mixture, making the collision between it and the flow guide plate more sufficient and the condensation effect better.

[0090] Embodiment 4

[0091] As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a liquid collection box structure, including a liquid collection box body 100, and the liquid collection box body is arranged at the connection of the air filter outlet pipe 200 and the crankcase ventilation pipe;

[0092] A liquid collection box air inlet 103 for connecting with the crankcase ventilation pipe is arranged on the liquid collection box body 100; an air outlet 201 of the liquid collection box communicated with the inside of the liquid collection box body 100 is arranged on the outer wall of the air filter outlet pipe 200;

[0093] A flow guiding plate is arranged inside the liquid collecting box body 100. The surface of the flow guiding plate is designed with concave-convex structures. After the oil-gas mixture in the crankcase ventilation pipe enters the liquid collecting box body 100 and collides with the flow guiding plate, it enters the air filter outlet pipe 200.

[0094] The oil-gas mixture flowing out of the crankcase ventilation pipe is mainly composed of the oil-gas treated by the oil-gas separator in the engine cylinder head and the water droplet particles condensed from the water vapor due to the temperature reduction. The main function of the liquid collecting box of the present utility model is to make the water droplet particles in the oil-gas mixture condense inside the liquid collecting box, reduce the moisture entering the air filter outlet pipe, and reduce the probability of icing at the crankcase ventilation joint.

[0095] Specifically, the air flow continuously collides with the concave-convex structures on the flow guiding plate. Compared with the smooth wall surface, due to the design of this concave-convex structure, the air flow will hit the wall surfaces in all directions of the structure, increasing the collision opportunity and collision area between the air flow and the wall surface. Liquid droplets or liquid films will gradually form on the wall surface, which is more conducive to the attachment and precipitation of moisture. Part of the air flow will be rebounded by the wall surface and continue to flow with the air. The gas will continue to collide with other concave-convex units on the flow guiding plate, and the speed of the residual liquid droplets in the gas will also decrease. Due to the reduction of inertia and the longer residence time, under the action of gravity, partial sedimentation or attachment will also occur and finally remain inside the liquid collecting box. Due to the continuous precipitation of moisture, the liquid droplet particles flowing into the air filter outlet pipe decrease, and the probability of icing at the crankcase ventilation joint will be reduced.

[0096] A liquid collecting box structure of the present utility model, by arranging a flow guiding plate with concave-convex structures on the surface inside the liquid collecting box body 100, the air flow will hit the wall surfaces in all directions of the structure, increasing the collision opportunity and collision area between the air flow and the wall surface of the flow guiding plate, which is conducive to the precipitation of liquid droplets from the oil-gas mixture, reducing the content of water molecules in the oil-gas mixture, and effectively alleviating the problem of ice blockage at the crankcase ventilation pipe joint in severely cold regions in winter.

[0097] The difference between this embodiment and the 3rd embodiment lies in:

[0098] The liquid collecting box body 100 includes a box body 101 and a box cover 102 covering the box body 101;

[0099] A liquid collecting box air outlet 201 communicating with the inside of the liquid collecting box body 100 is arranged on the outer wall of the air filter outlet pipe 200 inside the box body 101;

[0100] A liquid collecting box air inlet 103 for connecting with the crankcase ventilation pipe is opened on the box cover 102.

[0101] The first deflector 104 is disposed on both sides of the first mounting bracket 1041, and the first deflector 104 is connected to the liquid collecting box body 100 through the first mounting bracket 1041.

[0102] The second deflector 105 is disposed on the second mounting bracket 1051. The second deflector 105 is connected to the liquid collecting box body 100 through the second mounting bracket 1051. The second deflector 105 is disposed on a side of the second mounting bracket 1051 close to the liquid collecting box air outlet 201 and is used for guiding air flow into the liquid collecting box air outlet 201.

[0103] Embodiment 5

[0104] This embodiment provides a vehicle including the liquid collecting box structure described in any one of the above embodiments.

Claims

1. A liquid collecting box structure, characterized in that: It includes a liquid collecting box body, and the liquid collecting box body is arranged at the connection between the air filter outlet pipe and the crankcase ventilation pipe; A guide plate is arranged inside the liquid collecting box body, and a concave-convex structure is arranged on the surface of the guide plate.

2. The liquid collecting box structure according to claim 1, characterized in that: The concave-convex structure includes a plurality of convex blocks, and the plurality of convex blocks are connected to each other to form convex parts and concave parts that are alternately distributed.

3. The liquid collecting box structure according to claim 2, characterized in that: The shape of the convex block is a polyhedron, and the cross section of the polyhedron is an equilateral triangle.

4. The liquid collecting box structure according to claim 1, characterized in that: The concave-convex structure includes a plurality of grid units, and surfaces of the grid units are provided with concave portions.

5. The liquid collecting box structure according to claim 1, characterized in that: The concave-convex structure includes a plurality of convex blocks arranged at intervals, and concave portions are formed between adjacent convex blocks.

6. The liquid collecting box structure according to claim 1, characterized in that: The concavo-convex structure includes a plurality of strip-shaped protrusions, and grooves are formed between adjacent strip-shaped protrusions.

7. The liquid collecting box structure according to claim 1, characterized in that: The liquid collecting box body is provided with a liquid collecting box air inlet for connecting with the crankcase ventilation pipe; the outer wall of the air filter outlet pipe is provided with a liquid collecting box air outlet communicating with the interior of the liquid collecting box body.

8. The liquid collecting box structure according to claim 7, characterized in that: The guide plate includes a first guide plate and a second guide plate; the first guide plate is arranged near the air inlet of the liquid collecting box, and the second guide plate is arranged near the air outlet of the liquid collecting box; the first guide plate and the second guide plate are arranged parallel to the width direction of the liquid collecting box body; A first air passage for air flow is formed between the first guide plate and the side wall of the air filter outlet pipe; a second air passage for air flow is formed between the side of the second guide plate away from the first air passage and the liquid collection box body.

9. The liquid collecting box structure according to claim 8, characterized in that: The concave-convex structure is provided on both side surfaces of the first guide plate; the concave-convex structure is provided on the surface of the second guide plate close to the air outlet of the liquid collecting box; the concave-convex structure on the second guide plate includes a plurality of strip-type protrusions, and grooves are formed between adjacent strip-type protrusions, and the grooves are arranged parallel to the axis of the air outlet of the liquid collecting box.

10. A vehicle, characterized in that: The invention comprises the liquid collecting box structure according to any one of claims 1 to 9.

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