Filter integrated with silencer

Abstract

A filter integrated with a silencer comprises a lower shell, a first groove, a second groove and a third groove are formed in the lower shell, an air filter element is plugged at a notch of the first groove, an air passing through hole communicated with the second groove and the third groove is formed in the public side wall of the second groove and the third groove, and air outlets are formed in other side walls of the second groove. A first pipe body and a second pipe body are fixedly arranged in the third groove, and the two ends of the first pipe body are communicated with the air passing through hole and the air outlet respectively; a first upper shell and a second upper shell are in butt joint with the lower shell, the first upper shell covers the first groove and the second groove, the second upper shell covers the third groove, a resonant cavity is formed between the second upper shell and the third groove, and the first pipe body, the second pipe body and the resonant cavity form a Helmholtz resonance silencing structure. The three functional grooves are sequentially formed in the lower shell and matched with the filtering element, the silencing element and the two upper shells to form the air filter and the silencer, the structure is compact, and production and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to a filter, in particular to a filter integrated with a muffler. Background Art

[0002] The engine is usually installed in the engine compartment of a car. With the development of new energy vehicles, the drive motor will also be arranged in the engine compartment together with the engine. Competition in the automobile industry and users' requirements for automobile quality require not only the compactness but also the quietness of the engine compartment. At present, the air filter is arranged at the top of the engine, and the silencer element of the air filter is difficult to arrange. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a filter integrated with a muffler, aiming to improve the compactness of the air filter and the muffler.

[0004] A filter with an integrated silencer comprises a lower shell, characterized in that: a first groove, a second groove and a third groove are sequentially arranged in the lower shell from left to right, an air filter element is sealed on the notch of the first groove, an air inlet connected to the interior of the first groove is opened on the side wall of the first groove; an air through hole connecting the second groove and the third groove is opened on the common side wall of the second groove, an air outlet is opened on the other side wall of the second groove, a first tube body is fixedly arranged in the third groove, a second tube body connected to the first tube body is fixedly connected to the middle part of the first tube body, and two ends of the first tube body are respectively connected to the air through hole and the air outlet; a first upper shell and a second upper shell are butted against the lower shell, the first upper shell cover is arranged on the first groove and the second groove and connects the notch of the first groove with the notch of the second groove, the second upper shell cover is arranged on the third groove and forms a resonance cavity between the two, and the first tube body, the second tube body and the resonance cavity form a Helmholtz resonance silencer structure.

[0005] Further, two end ports of the first tube body are connected to the air through hole and the air outlet respectively, and the first tube body is clamped in the resonance cavity.

[0006] Further, the air through hole and the air outlet are respectively located on two opposite side walls of the third groove.

[0007] To facilitate the clamping and positioning of the first tube body in the third groove, further steps are as follows: vertical connectors are fixedly provided at both ends of the first tube body, slots are provided in the third groove at positions corresponding to the connectors, and the connectors are plugged into the corresponding slots; a positioning piece is fixedly provided on the inner wall of the second upper shell body at a position corresponding to the first tube body, and the positioning piece abuts against the upper part of the outer wall of the first tube body from top to bottom.

[0008] Further, the first tube body is arranged transversely in the third groove, and the second tube body is arranged longitudinally in the third groove.

[0009] Further, the first upper shell is detachably fixedly connected to the lower shell, and the fourth periphery of the second upper shell is welded to the lower shell.

[0010] Further: a first sealing ring and a second sealing ring are respectively arranged on the side edges of the first groove notch and the side edges of the second groove notch, and the first sealing ring and the second sealing ring are both clamped and sealed between the lower shell and the first upper shell; the air filter element includes a square filter material, and the first sealing ring is integrally connected to the top surface of the filter material.

[0011] Furthermore, the first sealing ring and the second sealing ring are integrally arranged, and the two have a common edge.

[0012] Further: a vertical grille is fixedly connected to the position of the common side wall of the first groove and the second groove in the first upper shell, and a positioning bar is fixedly connected to the lower part of the grille. The positioning bar is arranged along the common side wall of the first groove and the second groove and is pressed on the common edge of the first sealing ring and the second sealing ring.

[0013] Furthermore, fixed ear plates are distributed on the outer walls on both sides opposite to each other of the lower shell.

[0014] The beneficial effects of the utility model are as follows: by sequentially arranging three functional grooves in the lower shell, and cooperating with the filter element, the silencer element and the two upper shells to form an air filter and a silencer, the structure is compact and convenient for production and assembly, and the top view appearance of the utility model is neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure in the middle A area;

[0018] Figure 4 is a schematic diagram of the internal structure of the lower shell;

[0019] Figure 5 This is a diagram of the matching relationship between the first groove, the air filter element, the grille, the positioning strip and the first sealing ring in the utility model. DETAILED DESCRIPTION

[0020] The utility model is described in detail below in conjunction with the accompanying drawings. The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be interpreted as limiting the utility model. The directional terms such as left, middle, right, top, and bottom in the embodiments of the utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0021] A filter with integrated silencer, combined Figure 1 and Figure 2 As shown, it includes a lower shell 1, in which a first groove 14, a second groove 15 and a third groove 16 are arranged from left to right in sequence, an air filter element 3 is sealed on the notch of the first groove 14, and an air inlet 11 connected to the interior of the first groove 14 is opened on the side wall of the first groove 14; an air through hole 17 connecting the second groove 15 and the third groove 16 is opened on the common side wall, and an air outlet 13 is opened on the other side wall of the second groove 15, and the air through hole 17 and the air outlet 13 are respectively located on the opposite side walls of the third groove 16; a first tube body 41 is fixedly arranged in the third groove 16, and a second tube body 42 connected to the first tube body 41 is fixedly connected to the middle part of the first tube body 41. In order to facilitate the assembly of the first tube body 41 in the third groove 16, the first tube body 41 and the second tube body 42 are both made of hard materials, and the two end ports of the first tube body 41 are respectively connected to the air through hole 17 and the air outlet 13, and the first tube body 41 is clamped in the resonance cavity; combined with Figure 2 and Figure 4 As shown, the first tube body 41 is arranged horizontally in the third groove 16, and the second tube body 42 is arranged longitudinally in the third groove 16. One end of the second tube body 42 is connected to the side wall of the first tube body 41 and communicates with the interior of the first tube body 41. The other end of the second tube body 42 is located in the middle of the resonance cavity. The two ends of the first tube body 41 are respectively communicated with the air through hole 17 and the air outlet 13; the first upper shell 21 and the second upper shell 22 are connected to the lower shell 1, and the first upper shell 21 is covered on the first groove 14 and the second groove 15 so that the notch of the first groove 14 is connected with the notch of the second groove 15. The second upper shell 22 is covered on the third groove 16 and a resonance cavity is formed between the two. The first tube body 41, the second tube body 42 and the resonance cavity form a Helmholtz resonance silencing structure.

[0022] In order to facilitate the first tube body 41 to be clamped and positioned in the third groove 16, the Figure 3As shown, vertical connectors 411 are fixedly provided at both ends of the first tube body 41, and slots 18 are provided in the third groove 16 at positions corresponding to the connectors 411, and the connectors 411 are plugged into the corresponding slots 18; a positioning member 221 is fixedly provided on the inner wall of the second upper shell 22 at positions corresponding to the first tube body 41, and the positioning member 221 abuts against the upper part of the outer wall of the first tube body 41 from top to bottom, so as to position the first tube body 41 between the air through hole 17 and the air outlet 13;

[0023] The first upper shell 21 is detachably fixedly connected to the lower shell 1, and the second upper shell 22 is welded to the lower shell 1 on all sides. Fixed ear plates 12 are distributed on the outer walls of the two opposite sides of the lower shell 1. In order to facilitate the replacement of the air filter element, the second upper shell 22 is welded to the lower shell 1 on all sides. Figure 2 , Figure 4 and Figure 5 As shown, a first sealing ring 31 and a second sealing ring 32 are respectively arranged on the side edges of the notch of the first groove 14 and the side edges of the notch of the second groove 15, and the first sealing ring 31 and the second sealing ring 32 are both clamped and sealed between the lower shell 1 and the first upper shell 21; the air filter element 3 includes a square filter material, the first sealing ring 31 is integrally connected to the top surface of the filter material, the filter material is formed by folding the filter paper, and the first sealing ring 31 is cast and bonded to the filter paper; the first sealing ring 31 and the second sealing ring 32 are both made of PU material and are integrally arranged, and the two have a common edge; a vertical grille 211 is fixedly connected to the position corresponding to the common side wall of the first groove 14 and the second groove 15 in the first upper shell 21, and a positioning strip 212 is fixedly connected to the lower part of the grille 211, and the positioning strip 212 is arranged along the common side wall of the first groove 14 and the second groove 15 and pressed on the common edge of the first sealing ring 31 and the second sealing ring 32.

[0024] During operation, the airflow enters the air inlet 11 and passes through the first groove 14, the air filter 3, the inner cavity of the first upper shell 21, the second groove 15, the air through hole 17, the first tube body 41 in sequence, and then is discharged from the air outlet 13; when the airflow passes through the first tube body 41, the resonance cavity and the second tube body 42 and the first tube body 41 form a resonance system, which can strongly absorb or reflect sound waves of a specific frequency, thereby eliminating or weakening noise of a specific frequency in the airflow.

[0025] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A filter with integrated muffler, comprising a lower housing, characterized in that: A first groove, a second groove and a third groove are sequentially arranged in the lower shell from left to right, an air filter element is sealed on the notch of the first groove, an air inlet connected to the interior of the first groove is opened on the side wall of the first groove; an air through hole connecting the second groove and the third groove is opened on the common side wall of the second groove, an air outlet is opened on the other side wall of the second groove, a first tube body is fixedly arranged in the third groove, a second tube body connected to the first tube body is fixedly connected to the middle part of the first tube body, and two ends of the first tube body are respectively connected to the air through hole and the air outlet; a first upper shell body and a second upper shell body are butt-jointed on the lower shell, the first upper shell cover is arranged on the first groove and the second groove so that the notch of the first groove is connected to the notch of the second groove, the second upper shell cover is arranged on the third groove and a resonance cavity is formed between the two, and the first tube body, the second tube body and the resonance cavity form a Helmholtz resonance silencing structure.

2. The filter with integrated muffler according to claim 1, characterized in that: The two end ports of the first tube body are respectively connected to the air through hole and the air outlet, and the first tube body is clamped in the resonance cavity.

3. The filter with integrated muffler according to claim 2, characterized in that: The air through hole and the air outlet are respectively located on two opposite side walls of the third groove.

4. The filter with integrated muffler according to claim 2 or 3, characterized in that: Vertical connectors are fixedly provided at both ends of the first tube body, and slots are provided in the third groove at positions corresponding to the connectors, and the connectors are inserted into the corresponding slots; a positioning piece is fixedly provided on the inner wall of the second upper shell body at a position corresponding to the first tube body, and the positioning piece abuts against the upper part of the outer wall of the first tube body from top to bottom.

5. The filter with integrated muffler according to claim 2, characterized in that: The first tube body is arranged transversely in the third groove, and the second tube body is arranged longitudinally in the third groove.

6. The filter with integrated muffler according to claim 1, characterized in that: The first upper shell is detachably fixedly connected to the lower shell, and the fourth periphery of the second upper shell is welded to the lower shell.

7. The filter with integrated muffler according to claim 6, characterized in that: A first sealing ring and a second sealing ring are respectively arranged on the side edges of the first groove notch and the side edges of the second groove notch, and the first sealing ring and the second sealing ring are both clamped and sealed between the lower shell and the first upper shell; the air filter element includes a square filter material, and the first sealing ring is integrally connected around the top surface of the filter material.

8. The filter with integrated muffler according to claim 7, characterized in that: The first sealing ring and the second sealing ring are integrated and have a common edge.

9. The filter with integrated muffler according to claim 8, characterized in that: A vertical grille is fixedly connected to the position of the common side wall of the first groove and the second groove in the first upper shell, and a positioning bar is fixedly connected to the lower part of the grille. The positioning bar is arranged along the common side wall of the first groove and the second groove and is pressed on the common edge of the first sealing ring and the second sealing ring.

10. The filter with integrated muffler according to claim 1, characterized in that: Fixed ear plates are distributed on the outer walls of the lower shell on both sides opposite to each other.

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