Air inlet cone shell

Abstract

An air inlet cone shell is provided with an air inlet part corresponding to an air inlet and a shell part connected with the air inlet part. The shell part is provided with a plate-shaped part and a bent part extending from the periphery of the plate-shaped part. And the plate-shaped part is circular. The plate-shaped part comprises a center part located in the center, a first circular-ring-shaped protruding part arranged on the periphery of the center part in a surrounding mode and a first circular-ring-shaped concave part connected between the center part and the first circular-ring-shaped protruding part in the radial direction of the plate-shaped part. The protruding direction of the first circular-ring-shaped protruding part is opposite to the concave direction of the first circular-ring-shaped concave part. By means of the arrangement, the rigidity of the air inlet cone shell can be improved through the first circular-ring-shaped protruding part and the first circular-ring-shaped concave part, and therefore the noise phenomenon caused by resonance is avoided.

Description

Technical Field

[0001] This utility model relates to an intake cone housing, belonging to the field of engine exhaust aftertreatment technology. Background Technology

[0002] Related technologies include exhaust aftertreatment devices that include an intake cone to introduce exhaust gases from a vehicle engine into the exhaust aftertreatment device, and to treat the exhaust gases through various catalytic converters installed in the exhaust aftertreatment device to meet emission regulations.

[0003] The intake cone housing design in related technologies is relatively simple. However, the intake cone housing is prone to generating noise during vehicle operation. Utility Model Content

[0004] The purpose of this invention is to provide an intake cone housing with better structural strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an intake cone housing for use in an exhaust gas aftertreatment device, wherein the intake cone housing is provided with an intake portion corresponding to the intake port and a housing portion connected to the intake portion, the housing portion is provided with a plate-shaped portion and a bent portion extending from the periphery of the plate-shaped portion, the plate-shaped portion is circular, the plate-shaped portion includes a central portion located at the center, a first annular raised portion surrounding the periphery of the central portion, and a first annular recessed portion connected radially between the central portion and the first annular raised portion, wherein the raised direction of the first annular raised portion is opposite to the recessed direction of the first annular recessed portion.

[0006] As a further improvement of the present invention, the plate-shaped portion includes a second annular raised portion surrounding the periphery of the first annular raised portion and a second annular recessed portion radially connected between the first annular raised portion and the second annular raised portion, wherein the raised direction of the second annular raised portion is opposite to the recessed direction of the second annular recessed portion.

[0007] As a further improvement of the present invention, the plate-shaped portion includes a third annular raised portion surrounding the periphery of the second annular raised portion and a third annular recessed portion radially connected between the second annular raised portion and the third annular raised portion, wherein the raised direction of the third annular raised portion is opposite to the recessed direction of the third annular recessed portion.

[0008] As a further improvement of this utility model, along the radial direction of the plate-shaped portion, the width of the first annular raised portion, the width of the second annular raised portion, and the width of the third annular raised portion increase sequentially.

[0009] As a further improvement of the present invention, the plate-shaped portion is further provided with a recessed stepped portion near the air intake portion. The stepped portion includes a first platform and a second platform, and the first platform and the second platform are located in different planes.

[0010] As a further improvement of the present invention, both the first platform and the second platform are fan-shaped.

[0011] As a further improvement of the present invention, the plate-shaped portion is further provided with a first protrusion portion and a second protrusion portion located on both sides of the stepped portion respectively. The first protrusion portion is provided with a first protrusion, and the second protrusion portion is provided with a second protrusion. Both the first protrusion and the second protrusion are fan-shaped.

[0012] As a further improvement of this utility model, the first boss and the second boss are located in the same plane.

[0013] As a further improvement of the present invention, the stepped portion extends radially inward beyond the first boss and the second boss along the plate-shaped portion.

[0014] As a further improvement of this utility model, along the radial direction of the plate-shaped portion, the cross-section of the first annular raised portion is arc-shaped, and the cross-section of the first annular recessed portion is also arc-shaped.

[0015] Compared to existing technologies, the intake cone housing of this invention includes a first annular raised portion surrounding the periphery of the central portion, and a first annular recessed portion radially connected between the central portion and the first annular raised portion along the plate-like portion. The raised direction of the first annular raised portion is opposite to the recessed direction of the first annular recessed portion. This configuration increases the rigidity of the intake cone housing through the first annular raised portion and the first annular recessed portion, thereby avoiding noise caused by resonance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the intake cone housing of this utility model in one embodiment;

[0017] Figure 2 yes Figure 1 Top view;

[0018] Figure 3 It is along Figure 2 Schematic diagram of the cross section of line AA in the middle;

[0019] Figure 4 yes Figure 3 A magnified view of part B within the middle frame. Detailed Implementation

[0020] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Where several specific embodiments exist, features in these embodiments can be combined with each other without conflict. When the description relates to the drawings, unless otherwise stated, the same numbers or symbols in different drawings represent the same or similar elements. The content described in the following exemplary embodiments does not represent all embodiments of this utility model; rather, they are merely examples of products consistent with this utility model and as described in the claims.

[0021] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the scope of protection of this invention. It should be understood that terms such as "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish the features.

[0022] Please refer to Figures 1 to 4 As shown, this utility model discloses an intake cone housing 100 for use in an exhaust gas aftertreatment device. The intake cone housing 100 has an intake portion 1 corresponding to the intake port 10 and a housing portion 2 connected to the intake portion 1. The housing portion 2 has a plate-shaped portion 21 and a bent portion 22 extending from the periphery of the plate-shaped portion 21. The plate-shaped portion 21 is circular and includes a central portion 210 located at the center, a first annular raised portion 211 surrounding the periphery of the central portion 210, a first annular recess 212 radially connected between the central portion 210 and the first annular raised portion 211, a second annular raised portion 213 surrounding the periphery of the first annular raised portion 211, a second annular recess 214 radially connected between the first annular raised portion 211 and the second annular raised portion 213, a third annular raised portion 215 surrounding the periphery of the second annular raised portion 213, and a third annular recess 216 radially connected between the second annular raised portion 213 and the third annular raised portion 215.

[0023] In some embodiments, the top surface of the central portion 210 may be a plane. In other embodiments, the top surface of the central portion 210 may also be a raised structure to further increase structural strength.

[0024] In the embodiment illustrated in this utility model, the bulging direction of the first annular raised portion 211 is opposite to the concave direction of the first annular recessed portion 212. The bulging direction of the second annular raised portion 213 is opposite to the concave direction of the second annular recessed portion 214. The bulging direction of the third annular raised portion 215 is opposite to the concave direction of the third annular recessed portion 216.

[0025] In the embodiment illustrated in this utility model, along the radial direction of the plate-shaped portion 21, the width of the first annular raised portion 211, the width of the second annular raised portion 213, and the width of the third annular raised portion 215 increase sequentially from the inside to the outside.

[0026] In the embodiment illustrated in this utility model, along the radial direction of the plate-shaped portion 21, the cross-sections of the first annular raised portion 211, the second annular raised portion 213, and the third annular raised portion 215 are all arc-shaped, as are the cross-sections of the first annular recessed portion 212, the second annular recessed portion 214, and the third annular recessed portion 216. The first annular recessed portion 212, the first annular raised portion 211, the second annular recessed portion 214, the second annular raised portion 213, the third annular recessed portion 216, and the third annular raised portion 215 are connected sequentially and form a wave shape. This arrangement maximizes the rigidity of the plate-shaped portion 21 without increasing the structural volume, thereby avoiding noise caused by resonance.

[0027] In the embodiment illustrated in this utility model, the plate-shaped portion 21 is further provided with a recessed stepped portion 23 near the air intake portion 1, and a first boss portion 24 and a second boss portion 25 located on both sides of the stepped portion 23.

[0028] The stepped portion 23 includes a first platform 231 and a second platform 232, which are located in different planes to form a stepped shape. In the embodiment illustrated in this utility model, both the first platform 231 and the second platform 232 are fan-shaped.

[0029] The first boss portion 24 is provided with a first boss 241, and the second boss portion 25 is provided with a second boss 251. Both the first boss 241 and the second boss 251 are fan-shaped. The first boss 241 and the second boss 251 are located in the same plane.

[0030] In the embodiment illustrated in this utility model, the stepped portion 23 extends radially inward along the plate-shaped portion 21 beyond the first boss 241 and the second boss 251.

[0031] In the embodiment illustrated in this utility model, the center lines of the first platform 231, the second platform 232, and the air intake 1 are aligned with each other.

[0032] This invention, by providing the stepped portion 23, the first protrusion portion 24, and the second protrusion portion 25, directionally strengthens a certain area, thereby enabling the overall frequency to meet the requirements.

[0033] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. An intake cone housing for use in an exhaust gas aftertreatment device, characterized in that: The intake cone housing has an intake portion corresponding to the intake port and a housing portion connected to the intake portion. The housing portion has a plate-shaped portion and a bent portion extending from the periphery of the plate-shaped portion. The plate-shaped portion is circular and includes a central portion located at the center, a first annular raised portion surrounding the periphery of the central portion, and a first annular recessed portion connected radially between the central portion and the first annular raised portion. The raised direction of the first annular raised portion is opposite to the recessed direction of the first annular recessed portion.

2. The intake cone housing as described in claim 1, characterized in that: The plate-shaped portion includes a second annular raised portion surrounding the periphery of the first annular raised portion and a second annular recessed portion radially connected between the first annular raised portion and the second annular raised portion, wherein the raised direction of the second annular raised portion is opposite to the recessed direction of the second annular recessed portion.

3. The intake cone housing as described in claim 2, characterized in that: The plate-shaped portion includes a third annular raised portion surrounding the periphery of the second annular raised portion and a third annular recessed portion radially connected between the second annular raised portion and the third annular raised portion, wherein the raised direction of the third annular raised portion is opposite to the recessed direction of the third annular recessed portion.

4. The intake cone housing as described in claim 3, characterized in that: Along the radial direction of the plate-shaped portion, the widths of the first annular raised portion, the second annular raised portion, and the third annular raised portion increase sequentially.

5. The intake cone housing as described in claim 1, characterized in that: The plate-shaped portion is also provided with a recessed stepped portion near the air intake portion. The stepped portion includes a first platform and a second platform, which are located in different planes.

6. The intake cone housing as described in claim 5, characterized in that: Both the first platform and the second platform are fan-shaped.

7. The intake cone housing as described in claim 5, characterized in that: The plate-shaped portion is further provided with a first protrusion portion and a second protrusion portion located on both sides of the stepped portion respectively. The first protrusion portion is provided with a first protrusion, and the second protrusion portion is provided with a second protrusion. Both the first protrusion and the second protrusion are fan-shaped.

8. The intake cone housing as described in claim 7, characterized in that: The first boss and the second boss are located in the same plane.

9. The intake cone housing as described in claim 7, characterized in that: The stepped portion extends radially inward beyond the first boss and the second boss along the plate-shaped portion.

10. The intake cone housing as described in any one of claims 1 to 9, characterized in that: Along the radial direction of the plate-shaped portion, the cross-section of the first annular raised portion is arc-shaped, and the cross-section of the first annular recessed portion is also arc-shaped.

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