Air inlet device, air inlet system and vehicle
By setting a sound silencer on the outer wall of the tubular member of the engine air intake system and using the inner cavity of the hollow shell to communicate with the air intake channel, the problems of increasing the complexity and cost of the sound silence device in the prior art are solved, and a simple and effective noise reduction effect of the air intake system is achieved.
Patent Information
- Application Number
- CN202420210758.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-01-27
AI Technical Summary
The prior art requires additional noise-silencing devices and structures to reduce engine intake system noise, resulting in high complexity and cost.
An air intake device is designed to realize noise silencing by providing a sound silencing member on the outer wall of the tubular member and using the inner cavity of the hollow shell to communicate with the air intake passage.
The noise reduction effect of the air intake system is achieved, and the structure is simple, without the need to add additional pipe fittings and structure, reducing cost and complexity.
Smart Images
Figure CN222576765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle air intake systems, in particular to an air intake device, an air intake system and a vehicle. Background Art
[0002] The intake system consists of an air filter, an intake pipe, etc., and is mainly used to deliver clean and dry air to the engine to meet the engine's operating requirements. The existing technology mainly uses an additional silencer to reduce the noise of the engine intake system, which requires adding an additional structure to the existing intake system, which is complex and costly. Utility Model Content
[0003] The utility model provides an air intake device, an air intake system and a vehicle, which are used to solve the problem of noise in an air intake pipe and reduce and silence the noise of an engine air intake system.
[0004] The utility model provides an air intake device, comprising: a tubular member, an air intake passage is provided inside the tubular member; a muffler, the muffler comprises a hollow shell sealedly connected to the outer wall of the tubular member, the inner cavity of the hollow shell can be communicated with the air intake passage, so that the air intake noise can enter the inner cavity from the air intake passage to be silenced. The air intake device and air intake system provided by the utility model have a simple structure, and the muffler and noise reduction of the air intake system can be achieved without adding additional pipes and structures.
[0005] In some embodiments, a first through hole is provided on the outer wall of the tubular member at a position corresponding to the muffler, and the inner cavity is connected to the air inlet passage via the first through hole.
[0006] In some embodiments, a muffler is provided on the outer wall of the tubular member, and one or more first through holes are provided on the outer wall of the tubular member corresponding to one muffler.
[0007] In some embodiments, a plurality of the silencers are disposed on the outer wall of the tubular member, and the outer wall of the tubular member corresponding to any one of the silencers is provided with one or more of the first through holes.
[0008] In some embodiments, the outer wall of the tubular member is provided with a connection structure matching the hollow shell, and the hollow shell is sealed and connected to the outer wall of the tubular member through the connection structure.
[0009] In some embodiments, a first through hole is provided at a position of the outer wall of the tubular member corresponding to the muffler, a second through hole is provided at a position of the connecting structure corresponding to the hollow shell, and the inner cavity is connected to the air intake passage via the second through hole and the first through hole.
[0010] In some embodiments, the outer wall of the tubular member is integrally formed with the connecting structure.
[0011] In some embodiments, the tubular member includes a plain tube section and a corrugated tube section, and the muffler is disposed on an outer wall of the plain tube section.
[0012] Another aspect of the utility model provides an air intake system, including an air intake guide pipe assembly, an air filter assembly and an air intake device, wherein the first end plain pipe of the tubular member in the air intake pipe device is connected to the air intake guide pipe assembly, and the second end corrugated pipe of the tubular member is connected to the air filter assembly.
[0013] Another aspect of the present invention provides a vehicle, comprising the above-mentioned air intake device or the above-mentioned air intake system. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.
[0015] Figure 1 A schematic diagram of the structure of an air intake device assembly provided in an embodiment of the present application;
[0016] Description of Reference Numerals
[0017] 21 tubular member; 22 silencer; 23 hollow housing; 25 connection structure; 26 dust removal valve; DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] like Figure 1 As shown, the air intake device provided by the utility model includes:
[0020] A tubular member 21 and a muffler 22, wherein an air intake passage is provided inside the tubular member 21; the air intake passage is connected to the muffler 22, and the muffler 22 comprises a hollow shell 23, wherein the hollow shell 23 is sealedly connected to the outer wall of the tubular member 21, and the inner cavity of the hollow shell 23 forms a muffler cavity, which is connected to the air intake passage, so that the air intake noise can enter the inner cavity from the air intake passage to be silenced.
[0021] The tubular member 21 is characterized in that a first through hole is provided at a position on the outer wall of the tubular member 21 corresponding to the muffler 22, and the muffler inner cavity is connected to the air intake passage via the first through hole. It can be understood that the tubular member 21 is provided with a first through hole, and the first through hole is used to allow the gas and noise in the air intake passage to pass through and be introduced into the hollow shell 23 provided in the muffler 22 to achieve muffler and noise reduction. The air intake device of this structure is simple in structure and can achieve muffler without adding an additional muffler structure or extending the air intake pipe. The outer wall of the tubular member 21 is provided with a muffler 22, and the outer wall of the tubular member 21 corresponding to one muffler 22 is provided with one or more first through holes.
[0022] It is understood that the first through hole of the tubular member 21 can be one or more settings, and the number, size, and shape of the openings of the tubular member 21 connected to each hollow shell 23 can be freely and adaptively designed according to the requirements of air intake silencing and noise reduction. The outer wall of the tubular member 21 is provided with a plurality of the mufflers 22, and the outer wall of the tubular member 21 corresponding to any of the mufflers 22 is provided with one or more first through holes. It is understood that the outer wall of the tubular member 21 can be provided with one or more hollow shells 23, and any hollow shell 23 can be connected to one or more first through holes, and the number, size, and shape of the openings of the mufflers 22 and the tubular member 21 can be freely and adaptively designed according to the requirements of air intake silencing and noise reduction. The outer wall of the tubular member 21 is integrally formed with the connecting structure 25, and it is understood that the tubular member 21 and the connecting structure 25 can be integrally formed by hot blow molding. The outer wall of the tubular member 21 is provided with a connecting structure 25 matching the hollow shell 23, and the hollow shell 23 is sealed and connected to the outer wall of the tubular member 21 through the connecting structure 25. In the air intake device proposed in the utility model, the tubular member 21 and the connecting structure 25 are made of a thermoplastic material and are integrally formed by blow molding. The tubular member 21 and the hollow shell 23 of the muffler 22 are welded by a rotary friction welding or vibration friction welding process, which saves the input of materials and fasteners, shortens the processing cycle, reduces the assembly process, and reduces the cost. While achieving the purpose of muffler, the mechanism will not increase the intake resistance of the intake pipeline, and thus will not affect the power and economy of the vehicle.
[0023] It is understandable that the connecting structure 25 matches the shape and size of the hollow shell 23. A first through hole is provided at a position on the outer wall of the tubular member 21 corresponding to the muffler 22, and a second through hole is provided at a position on the connecting structure 25 corresponding to the hollow shell 23. The muffler inner cavity 23 is connected to the air intake passage via the second through hole and the first through hole. It is understandable that the first through hole and the second through hole can be directly opposite or spaced apart, and the size of the second through hole is greater than or equal to the first through hole. The tubular member 21 includes a plain tube section and a corrugated tube section, and the muffler 22 is provided on the outer wall of the plain tube section. It is understandable that the outer wall of the plain tube of the tubular member 21 is more conducive to the provision of the connecting structure 25 for connecting the muffler 22, and a muffler cavity is formed between the inner wall of the muffler 22 and the outer wall of the plain tube section of the tubular member 21. The bellows of the tubular component 21 is made of flexible material and can be retracted to save space for arranging the tubular component. The arrangement of the bellows of the tubular component 21 can form a chamber relatively isolated from the original air intake pipeline between the outer wall of the tubular component 21 and the inner wall of the bellows on the basis of the original air intake pipeline. The bellows and the plain tube are integrally formed by a hot blow molding process. The air intake device has a simple structure and a good noise reduction effect.
[0024] It is understandable that the bellows section of the tubular member 21 is made of a flexible material. Preferably, the bellows is made of materials such as rubber or silicone. The tubular member can be made of a flexible material. The tubular member itself has a certain elasticity and damping performance, and will not produce the resonance problem caused by the mutual cooperation of rigid materials, thereby optimizing the silencing effect. Since the bellows is the original structure in the intake system, the setting of the silencing chamber does not increase the overall length of the intake pipeline; and the mechanism has a simple structure and is easy to install, which can reduce the difficulty of installation and reduce costs.
[0025] The air intake device provided in the present invention may further include a sewage discharge member 26, which is connected to one side of the housing 23 and can discharge impurities in the muffler cavity through a sewage discharge port to improve the gas quality in the air intake system.
[0026] The silencer 22 provided on the air intake device 2 can change the diameter of the tubular member 21 along the length direction. When multiple silencers 22 are provided, the tubular member repeatedly increases and decreases in diameter along the length direction, and cooperates with the tubular member 21 provided inside to form multiple silencer cavities, thereby further optimizing the silencer effect. Multiple silencer cavities are arranged at intervals along the length direction of the tubular member, and the shape of the hollow shell 23 can be square, rectangular, or irregular. It is understandable that the setting size and number of the hollow shell 23, the diameter and number of the first through hole and the second through hole and other parameters can be determined according to actual conditions; specifically, the optimal setting scheme can be determined by combining the intake noise frequency band analysis, through simulation calculations and multiple groups of sample tests.
[0027] Optionally, the outer wall of the tubular member 21 and the inner wall of the muffler 22 are connected by friction welding or vibration friction welding, which can achieve a sealed connection between the tubular member 21 and the muffler 22 and improve the muffler effect.
[0028] Optionally, the sewage discharge member 26 includes a connecting portion and a sewage discharge port. The sewage discharge port is initially in a closed state, and the sewage discharge port can open when subjected to force to discharge impurities.
[0029] Optionally, the sewage discharge member is made of a flexible material so that the sewage discharge port can be opened by being squeezed by external force.
[0030] Preferably, the sewage outlet is a duckbill-shaped structure, which can be closed by a plurality of plate-like parts cooperating with each other. When sewage needs to be discharged, the sewage outlet can be squeezed manually or with the assistance of tools to open the sewage outlet away from one end of the tubular member 21 to discharge the impurities in the muffler chamber 24. It is understandable that the sewage outlet can also be other structures that can discharge impurities, and the impurities in the muffler chamber 24 include but are not limited to dirty liquid. The sewage discharge member 26 also includes a connecting portion, one end of which is connected to the hollow shell 23, and the other end is connected to the sewage outlet. The connecting portion can be connected to the muffler shell 23 by welding, and the connecting portion can be integrally formed with the sewage outlet, or can be connected by assembly. Specifically, the sewage outlet is made of rubber.
[0031] Another aspect of the utility model provides an air intake system, which includes an air intake guide assembly, an air filter assembly and the above-mentioned air intake device, and the air intake device can be connected to the air intake guide assembly and the air filter assembly. The air intake device can be arranged before the air filter, so that the sewage discharge component 26 of the air intake device can more easily achieve sewage discharge. Even if a backflow is formed at the sewage discharge port during sewage discharge, the air filter located behind the sewage discharge port in the forward direction of the gas can filter again. Through the combined action of the sewage discharge port and the air filter, the air filtering effect is optimized to avoid damage to the engine due to the low quality of the gas entering the engine. Optionally, the outlet end of the air filter can be connected to the engine air intake and the air compressor air intake respectively.
[0032] The air intake system of a vehicle generally includes two branches, one for gas to flow through the air intake device, air filter, supercharger, intercooler and engine air intake in sequence; the engine includes an air compressor, and the other for gas to flow through the air intake grille, air filter and air compressor air intake in sequence. The air compressor takes air from the three-way port of the pipeline between the air filter and the supercharger, and then connects it to the air intake of the air compressor with a hose. Specifically, the different components in the air intake system are connected through connecting pipes such as hoses and bellows, and the type of connecting pipe can be determined according to the needs of use. The air intake device is arranged on the total air intake pipeline of the air intake system, and can simultaneously silence and drain the pipeline connected to the engine air intake and the pipeline connected to the air compressor air intake. Preferably, the air intake grille is connected to the bellows through a flange air outlet, and a plurality of fasteners are provided on the flange air outlet to connect the flange air outlet to the air outlet of the air intake grille.
[0033] Specifically, the fastener may be a bolt, a screw or other fixing structure. The length of the tubular member 21 may be set as required. Optionally, both the air intake device and the air filter are provided with a sewage discharge structure to enhance the sewage discharge effect, reduce impurity deposition, and thereby reduce wear on the engine. Specifically, the specific structure of the sewage discharge structure may be determined as required, and the sewage discharge structures on the air intake device and the air filter may be the same structure or different structures.
[0034] Another aspect of the utility model provides a vehicle, comprising the above-mentioned air intake device or air intake system. By arranging the air intake silencer, the noise of the air intake system is reduced, so that the vehicle can meet the use requirements and satisfy the requirements for NVH performance.
[0035] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the utility model. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model. It should also be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings, not all structures. In the description of the utility model, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.
Claims
1. An air intake device, characterized in that: include: A tubular member (21), wherein an air inlet passage is provided inside the tubular member; A silencer (22), the silencer (22) comprising a hollow shell (23) sealedly connected to the outer wall of the tubular member, the inner cavity of the hollow shell (23) being communicable with the air intake passage, so that the air intake noise can enter the inner cavity from the air intake passage to be silenced.
2. The air intake device according to claim 1, characterized in that: A first through hole is provided at a position on the outer wall of the tubular member (21) corresponding to the silencer (22), and the inner cavity is connected to the air intake passage via the first through hole.
3. The air intake device according to claim 2, characterized in that: The outer wall of the tubular member (21) is provided with a muffler (22), and the outer wall of the tubular member (21) corresponding to one muffler (22) is provided with one or more of the first through holes.
4. The air intake device according to claim 2, characterized in that: The outer wall of the tubular member (21) is provided with a plurality of the silencers (22), and the outer wall of the tubular member (21) corresponding to any one of the silencers (22) is provided with one or more of the first through holes.
5. The air intake device according to claim 1, characterized in that: The outer wall of the tubular member (21) is provided with a connection structure (25) matching the hollow shell (23), and the hollow shell (23) is sealedly connected to the outer wall of the tubular member (21) via the connection structure (25).
6. The air intake device according to claim 5, characterized in that: A first through hole is provided at a position on the outer wall of the tubular member (21) corresponding to the silencer (22), a second through hole is provided at a position on the connecting structure (25) corresponding to the hollow shell (23), and the inner cavity is connected to the air intake passage via the second through hole and the first through hole.
7. The air intake device according to claim 5, characterized in that: The outer wall of the tubular member (21) and the connecting structure (25) are integrally formed.
8. The air intake device according to any one of claims 1 to 7, characterized in that: The tubular member (21) comprises a plain tube section and a corrugated tube section, and the silencer (22) is arranged on the outer wall of the plain tube section.
9. An air intake system, characterized in that: It comprises an intake guide pipe assembly, an air filter assembly and an intake device as claimed in any one of claims 1 to 8, Wherein, the first end of the tubular member (21) is connected to the air intake guide pipe assembly, and the second end of the tubular member (21) is connected to the air filter assembly.
10. A vehicle, characterized in that: It comprises the air intake device as described in any one of claims 1 to 8 or comprises the air intake system as described in claim 9.