Engine air inlet device, engine and vehicle

Abstract

The utility model belongs to the technical field of engines, and particularly relates to an engine air inlet device, an engine and a vehicle. The engine air inlet device comprises a shell and a heating grid, the shell is provided with an air inlet, a cavity and an air outlet which are sequentially communicated, the cavity comprises an air inlet channel, and the air inlet and the air outlet are both communicated with the air inlet channel; the heating grid is located in the cavity and rotationally connected with the shell, the heating grid can rotate to the heating area and the hidden area, the heating area is located on the air inlet channel, and the hidden area avoids the air inlet channel; when the heating grid rotates to the heating area, gas flows to the air cylinder through the air inlet, the cavity, the heating grid and the air outlet; when the heating grid rotates to the hidden area, air flows to the air cylinder through the air inlet, the cavity and the air outlet. By using the air inlet device of the engine in the technical scheme, the resistance of the heating grid to the inlet air can be reduced, the pressure loss in the air inlet process is reduced, and the performance of the engine is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and in particular to an engine air intake device, an engine and a vehicle. Background Art

[0002] The engine's intake system effectively helps the engine start smoothly in low-temperature environments by heating the air at the intake. Heating the intake air reduces lubricant viscosity, reducing friction between internal engine parts, and simultaneously raising the temperature within the combustion chamber, promoting smoother fuel combustion. In actual operation, heating the intake air often causes pressure loss in the intake system, a key indicator of engine performance, including power, torque, fuel consumption, and emissions.

[0003] To assist with cold-starting an engine, a grille is typically installed in the engine's intake duct. This grille is controlled to heat the air entering the engine, shortening the engine's startup time. However, this existing grille creates a certain amount of intake air resistance during operation, increasing pressure loss in the engine's intake system and causing insufficient engine pressure.

[0004] Therefore, it is urgent to propose an engine air intake device, an engine and a vehicle to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to at least solve the problem of excessive intake pressure loss caused by the engine intake device. This purpose is achieved through the following technical solutions:

[0006] The first aspect of the present invention provides an engine air intake device, comprising:

[0007] a housing, the housing having an air inlet, a cavity, and an air outlet connected in sequence, the cavity including an air inlet passage, the air inlet and the air outlet both being connected to the air inlet passage, the air inlet being used for air intake, and the air outlet being used for connecting to a cylinder of an engine;

[0008] a heating grille, the heating grille being located in the cavity and rotatably connected to the housing, the heating grille being rotatable to a heating zone and a hidden zone, the heating zone being located on the air inlet passage, and the hidden zone avoiding the air inlet passage;

[0009] When the heating grille rotates to the heating zone, the gas flows into the cylinder through the gas inlet, the cavity, the heating grille and the gas outlet;

[0010] When the heating grille rotates to the hidden area, the gas flows toward the cylinder through the air inlet, the cavity and the air outlet.

[0011] When the engine air intake device in the present technical solution needs to heat the gas during cold start, the heating grille will rotate to the heating zone, that is, the heating grille is located on the flow path of the gas. After the gas enters the intake channel from the air inlet, it flows through the heating grille, exchanges heat with the heating grille, and then flows from the air outlet to the cylinder; when the cold start is completed and the gas no longer needs to be heated, the heating grille will rotate to the hidden zone. After the gas enters the intake channel from the air inlet, it flows directly from the air outlet to the cylinder without passing through the heating grille, thereby avoiding the heating grille increasing the resistance in the intake channel, reducing the pressure loss during the intake process, and thereby improving the performance of the engine.

[0012] In addition, the engine air intake device according to the present invention may also have the following additional technical features:

[0013] In some embodiments of the present invention, the heating zone is located at one end of the air inlet passage facing the air inlet.

[0014] In some embodiments of the present invention, the engine air intake device includes a drive unit, the heating grille includes a rotating shaft, a mounting hole is provided on the shell, the rotating shaft passes through the mounting hole and is transmission-connected to the drive unit, and the drive unit is used to drive the rotating shaft to rotate.

[0015] In some embodiments of the present invention, the heating grille includes a grille body and a grille frame, the grille body is connected to the grille frame, and the rotating shaft passes through one side of the grille frame and is fixedly connected to the grille frame.

[0016] In some embodiments of the present invention, the heating grid includes fastening screws, and the grid frame is fixedly connected to the rotating shaft through the fastening screws.

[0017] In some embodiments of the present invention, the engine air intake device includes a power supply unit, and the power supply unit includes an electrical connection portion. When the heating grid is located in the heating area, the electrical connection portion is electrically connected to the heating grid.

[0018] In some embodiments of the present invention, a connection hole is provided on the shell, and the electrical connection part penetrates into the interior of the cavity through the connection hole. A positioning groove is provided on the heating grille. When the heating grille is located in the heating area, the electrical connection part is inserted into the positioning groove and contacts the edge of the positioning groove for electrical conduction.

[0019] In some embodiments of the present invention, a mounting opening is provided on the shell, the mounting opening is communicated with the cavity, and a cover plate is provided on the shell, the cover plate is used to close the mounting opening.

[0020] The present invention further provides an engine, which includes the engine air intake device in the above embodiment. A cylinder is provided in the engine, and the air outlet is connected to the cylinder.

[0021] The present invention also provides a vehicle, which includes the engine in the above embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0023] Figure 1 This is a structural diagram of the engine air intake device provided by the utility model (the heating grid is located in the heating area);

[0024] Figure 2 This is a structural diagram of the engine air intake device provided by the utility model (the heating grille is located in the hidden area);

[0025] Figure 3 It is a structural schematic diagram of the cavity provided by the utility model;

[0026] Figure 4 It is a structural schematic diagram of the housing provided by the utility model;

[0027] Figure 5 This is a schematic structural diagram of the engine air intake device provided by the utility model from one viewing angle;

[0028] Figure 6 This is a schematic structural diagram of the heating grid provided by the utility model at one viewing angle;

[0029] Figure 7 This is a schematic structural diagram of the engine air intake device provided by the present invention from another perspective;

[0030] Figure 8 This is a schematic structural diagram of the heating grid provided by the present invention from another perspective;

[0031] Figure 9 This is a flow chart of the control principle of the engine air intake device provided by the utility model.

[0032] In the picture:

[0033] 100. Shell; 101. Air inlet; 102. Air outlet; 103. Mounting port; 110. Cover plate; 1100. Cavity; 1101. Air inlet channel; 1102. Heating zone; 1103. Hidden zone; 200. Heating grille; 210. Grille body; 220. Grille frame; 221. Positioning groove; 230. Rotating shaft; 240. Fastening screw; 300. Drive unit; 400. Electrical connection portion. DETAILED DESCRIPTION

[0034] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0035] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0036] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0037] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0038] See also Figures 1 to 4 The present embodiment provides an engine air intake device, comprising a housing 100 and a heating grille 200. The housing 100 has an air inlet 101, a cavity 1100, and an air outlet 102 that are sequentially connected. The cavity 1100 includes an air intake passage 1101. The air inlet 101 and the air outlet 102 are both connected to the air intake passage 1101. The air inlet 101 is used for air intake, and the air outlet 102 is used for communication with the engine cylinder. The heating grille 200 is located in the cavity 1100 and is rotatably connected to the housing 100. The heat grille 200 can rotate to the heating area 1102 and the hidden area 1103. The heating area 1102 is located on the air inlet channel 1101, and the hidden area 1103 avoids the air inlet channel 1101. When the heating grille 200 rotates to the heating area 1102, the gas flows to the cylinder through the air inlet 101, the cavity 1100, the heating grille 200 and the air outlet 102. When the heating grille 200 rotates to the hidden area 1103, the gas flows to the cylinder through the air inlet 101, the cavity 1100 and the air outlet 102.

[0039] When the engine intake device provided in this embodiment needs to heat the gas during cold start, the heating grille 200 will rotate to the heating area 1102, that is, the heating grille 200 is located on the gas flow path. After the gas enters the intake channel 1101 from the air inlet 101, it flows through the heating grille 200, exchanges heat with the heating grille 200, and then flows from the air outlet 102 to the cylinder; when the cold start is completed and the gas no longer needs to be heated, the heating grille 200 will rotate to the hidden area 1103. After the gas enters the intake channel 1101 from the air inlet 101, it flows directly from the air outlet 102 to the cylinder without passing through the heating grille 200, thereby avoiding the heating grille 200 increasing the resistance in the intake channel 1101, reducing the pressure loss during the intake process, and thereby improving the performance of the engine.

[0040] Continue to see Figures 1 to 4 The housing 100 is roughly rectangular in shape, with the air inlet 101 and the air outlet 102 located at either end of the housing 100 in the longitudinal direction. An air inlet channel 1101 is formed between the air inlet 101 and the air outlet 102. The flow cross-section of the air inlet channel 1101 (the cross-section perpendicular to the flow direction) is roughly square. Optionally, when the heating grille 200 is located in the heating zone 1102, the end face of the heating grille 200 is perpendicular to the flow direction of the gas, so that the gas can evenly contact the heating grille 200 and ensure uniform gas temperature. When the heating grille 200 is located in the hidden zone 1103, the end face of the heating grille 200 is parallel to the flow direction of the gas, thereby minimizing the resistance of the heating grille 200 to the flow of gas and ensuring sufficient intake pressure.

[0041] In some embodiments, the heating zone 1102 is located at the end of the air inlet passage 1101 facing the air inlet 101. This allows the cavity 1100 to heat up when the heating grid 200 is powered, and the housing 100 can insulate the cavity 1100. In other embodiments, the heating zone 1102 can also be located at the end of the air inlet passage 1101 facing the air outlet 102. Of course, the heating zone 1102 can also be located at any location between the air outlet 102 and the air inlet 101, as long as the gas can flow through the heating grid 200.

[0042] Further, see Figure 4 and Figure 5The housing 100 has an installation opening 103 that communicates with the cavity 1100. A cover plate 110 is provided on the housing 100 to seal the installation opening 103. The installation opening 103 is used to install the heating grille 200. For example, during assembly, the heating grille 200 is placed into the housing 100 through the installation opening 103 and connected to the housing 100. As will be appreciated, the provision of the installation opening 103 reduces the difficulty of assembling the heating grille 200 and the housing 100. After the heating grille 200 is assembled, the installation opening 103 is sealed with the cover plate 110 to prevent gas leakage from the installation opening 103. Optionally, the cover plate 110 and the housing 100 can be fixedly connected by bolts. To enhance the sealing between the housing 100 and the cover plate 110, a sealing ring can be provided around the installation opening 103 and pressed tightly between the housing 100 and the cover plate 110. Optionally, the mounting opening 103 is generally rectangular, and its length is greater than that of the heating grille 200, thereby ensuring that the heating grille 200 can pass through the mounting opening 103 and enter the cavity 1100. In some embodiments, the mounting opening 103 is provided on any side wall of the housing 100 parallel to the plane where the hidden area 1103 is located. In other embodiments, the mounting opening 103 is provided on any side wall of the housing 100 perpendicular to the plane where the hidden area 1103 is located. In this embodiment, the mounting opening 103 is located on the side wall of the housing 100 near the hidden area 1103, thereby minimizing the difficulty of installing the heating grille 200.

[0043] Further, see Figures 4 to 6 The engine air intake device includes a drive unit 300, and the heating grille 200 includes a rotating shaft 230. The housing 100 is provided with a mounting hole. The rotating shaft 230 passes through the mounting hole and is in transmission connection with the drive unit 300. The drive unit 300 is used to drive the rotating shaft 230 to rotate. In this embodiment, a mounting hole is provided on both the top and bottom of the housing 100, and the two mounting holes are arranged opposite each other.

[0044] Furthermore, the engine air intake device includes a drive unit 300, and the heating grille 200 includes a rotating shaft 230. The housing 100 is provided with a mounting hole, and the rotating shaft 230 extends through the mounting hole and is in transmission connection with the drive unit 300. The drive unit 300 is used to drive the rotating shaft 230 to rotate. Specifically, when gas heating is not required, the heating grille 200 is located in the hidden area 1103. When gas heating is required during a cold start, the control unit issues a command to the drive unit 300, which drives the rotating shaft 230 to rotate, thereby rotating the heating grille 200 from the hidden area 1103 to the heating area 1102. After the heating grille 200 is rotated into position, power is turned on to generate heat. When the cold start is completed and gas heating is no longer required, the heating grille 200 is powered off and heating stops. Simultaneously, the control unit issues a command to the drive unit 300, which drives the rotating shaft 230 to rotate in the opposite direction, thereby rotating the heating grille 200 from the heating area 1102 to the hidden area 1103. The configuration of the control unit is well-established in the art and will not be further described here.

[0045] Further, see Figure 6 The heating grid 200 includes a grid body 210 and a grid frame 220. The grid body 210 is connected to the grid frame 220. The rotating shaft 230 is disposed through one side of the grid frame 220 and is fixedly connected to the grid frame 220. Optionally, the grid body 210 can be a metal mesh structure connected to the grid frame 220 by welding. In one embodiment, a through hole is provided in the grid frame 220, and both ends of the rotating shaft 230 extend through the through hole.

[0046] Further, see Figure 6 The heating grid 200 includes fastening screws 240, which securely connect the grid frame 220 to the rotating shaft 230. For example, the rotating shaft 230 is provided with threaded holes extending radially along the rotating shaft 230. The fastening screws 240 penetrate the grid frame 220 along the radial direction of the rotating shaft 230 and are threadedly connected to the threaded holes in the rotating shaft 230. In this embodiment, there are two fastening screws 240. In other embodiments, the number of fastening screws 240 may be one, three, four, or five.

[0047] Further, see Figure 7 The engine air intake device includes a power supply unit (not shown), which includes an electrical connection portion 400. When the heating grille 200 is located in the heating zone 1102, the electrical connection portion 400 is electrically connected to the heating grille 200. Optionally, when the heating grille 200 rotates to the heating zone 1102, the control unit sends a signal to the power supply unit, electrically connecting the power supply unit to the heating grille 200 via the electrical connection portion 400. When the heating grille 200 leaves the heating zone 1102, the control unit controls the power supply unit to be de-energized.

[0048] Further, see Figure 7 and Figure 8 The housing 100 is provided with a connection hole, through which the electrical connector 400 penetrates the interior of the cavity 1100. The heating grid 200 is provided with a positioning slot 221. When the heating grid 200 is located in the heating zone 1102, the electrical connector 400 is inserted into the positioning slot 221 and contacts the edge of the positioning slot 221 for electrical conduction. Optionally, the electrical connector 400 is a columnar structure. In this embodiment, the electrical connector 400 includes a positive electrode connector and a negative electrode connector, which are spaced apart. Accordingly, the heating grid 200 is provided with two positioning slots 221, corresponding to the positions of the positive and negative electrodes, respectively. The edges of the positioning slots 221 contact the electrical connector 400, enabling electrical conduction and also serving as a position limiter. Optionally, the positioning slots 221 are formed as straight-line openings on the side of the grid support, allowing the electrical connector 400 to be inserted into the straight-line openings during rotation of the heating grid 200.

[0049] See also Figure 9 The control principle of the engine air intake device provided by this embodiment is described by taking the initial position of the heating grille 200 as the hidden area 1103 as an example:

[0050] The control unit collects the ambient temperature T;

[0051] Determine whether the ambient temperature T is lower than the set temperature T0 (T0 is the critical temperature at which the engine can start without heating the intake air);

[0052] If the ambient temperature T ≥ the set temperature T0, the control unit does not need to send an action instruction to the driving unit 300 and the power supply unit. At this time, the heating grid 200 is located in the hidden area 1103 and is in a non-heating state;

[0053] If the ambient temperature T is less than the set temperature T0, the control unit sends a positive action instruction to the driving unit 300, and the driving unit 300 drives the heating grille 200 to rotate to the heating zone 1102, and the power supply unit and the heating grille 200 are electrically connected. At this time, the heating grille 200 is in a heating state;

[0054] The control unit determines whether the engine is started. If the engine is not started, the heating grille 200 remains in the heating state. If the engine is already started, the control unit sends a reverse action instruction to the drive unit 300. The drive unit 300 drives the heating grille 200 to rotate to the hidden area 1103, and the power supply unit stops supplying power, and the heating grille 200 enters the non-heating state.

[0055] This embodiment also provides an engine, including an engine air intake device, wherein a cylinder is disposed within the engine, and an air outlet 102 is connected to the cylinder. By utilizing the above-described air intake device, when heating the intake air is not required, the heating grille 200 can be rotated to a hidden area 1103 to avoid the intake passage 1101, thereby reducing pressure loss caused by the heating grille 200, ensuring sufficient air intake to the cylinder, and thus improving engine performance.

[0056] This embodiment also provides a vehicle including the above-mentioned engine. The vehicle uses an engine with low intake pressure loss, thus having advantages such as good acceleration performance, low fuel consumption, and sufficient power.

[0057] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An engine air intake device, characterized in that: include: A housing (100), the housing (100) having an air inlet (101), a cavity (1100), and an air outlet (102) that are sequentially connected, the cavity (1100) including an air inlet passage (1101), the air inlet (101) and the air outlet (102) both being connected to the air inlet passage (1101), the air inlet (101) being used for air intake, and the air outlet (102) being used for connecting to a cylinder of an engine; a heating grille (200), the heating grille (200) being located in the cavity (1100) and being rotatably connected to the housing (100), the heating grille (200) being capable of rotating to a heating area (1102) and a hidden area (1103), the heating area (1102) being located on the air inlet passage (1101), and the hidden area (1103) avoiding the air inlet passage (1101); When the heating grid (200) rotates to the heating zone (1102), the gas flows into the cylinder through the gas inlet (101), the cavity (1100), the heating grid (200) and the gas outlet (102); When the heating grille (200) rotates to the hidden area (1103), the gas flows toward the cylinder through the gas inlet (101), the cavity (1100) and the gas outlet (102).

2. The engine air intake device according to claim 1, characterized in that: The heating zone (1102) is located at one end of the air inlet channel (1101) facing the air inlet (101).

3. The engine air intake device according to claim 1, characterized in that: The engine air intake device comprises a drive unit (300), the heating grille (200) comprises a rotating shaft (230), a mounting hole is provided on the housing (100), the rotating shaft (230) passes through the mounting hole and is transmission-connected to the drive unit (300), and the drive unit (300) is used to drive the rotating shaft (230) to rotate.

4. The engine air intake device according to claim 3, characterized in that: The heating grille (200) comprises a grille body (210) and a grille frame (220), wherein the grille body (210) is connected to the grille frame (220), and the rotating shaft (230) is provided through one side of the grille frame (220) and is fixedly connected to the grille frame (220).

5. The engine air intake device according to claim 4, characterized in that: The heating grid (200) includes fastening screws (240), and the grid frame (220) is fixedly connected to the rotating shaft (230) via the fastening screws (240).

6. The engine air intake device according to claim 1, characterized in that: The engine air intake device comprises a power supply unit, the power supply unit comprises an electrical connection portion (400), and when the heating grid (200) is located in the heating zone (1102), the electrical connection portion (400) and the heating grid (200) are electrically connected.

7. The engine air intake device according to claim 6, characterized in that: The shell (100) is provided with a connection hole, and the electrical connection part (400) penetrates into the interior of the cavity (1100) through the connection hole. The heating grid (200) is provided with a positioning groove (221). When the heating grid (200) is located in the heating area (1102), the electrical connection part (400) is inserted into the positioning groove (221) and contacts the edge of the positioning groove (221) for electrical conduction.

8. The engine air intake device according to any one of claims 1 to 7, characterized in that: The shell (100) is provided with an installation opening (103), the installation opening (103) is communicated with the cavity (1100), and the shell (100) is provided with a cover plate (110), the cover plate (110) is used to close the installation opening (103).

9. An engine, characterized in that: The invention comprises an engine air intake device according to any one of claims 1 to 8, wherein a cylinder is provided in the engine, and the air outlet (102) is connected to the cylinder.

10. A vehicle, characterized in that: Including the engine described in claim 9.

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