Automobile rear cover license plate mounting hole sealing structure and method of use thereof

By using a combined structure of a fixing sleeve and a sealing assembly at the license plate mounting hole on the rear cover of a car, problems such as water leakage, dust ingress, and rust are solved, achieving efficient sealing and cost reduction.

CN119428481BActive Publication Date: 2025-10-24CHERY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202411714271.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-24
Estimated Expiration
2044-11-27

AI Technical Summary

Technical Problem

The license plate mounting hole on the rear cover of a car is prone to water and dust leakage, leading to rust. Existing sealing solutions have poor reliability and high costs.

Method used

A combination structure of a fixed sleeve and a sealing assembly is adopted, including a sealing plug, a sealing gasket, a sealing ring, etc., which are movably arranged in the fixed sleeve to achieve sealing, and the sealing effect is enhanced by utilizing the stacking and limiting structure of the sealing gasket and the sealing ring.

Benefits of technology

Effectively avoid water leakage and dust intrusion, prevent rust, reduce production costs and improve sealing reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The automobile rear cover license plate mounting hole sealing structure comprises a fixed sleeve arranged on one side of the automobile rear cover and a sealing assembly arranged on the other side of the automobile rear cover, and the sealing assembly is movably arranged in the fixed sleeve. The license plate mounting hole on the automobile rear cover is effectively sealed through the fixed sleeve and the sealing assembly, the sealing property of the license plate mounting hole on the automobile rear cover is improved, the license plate mounting hole on the automobile rear cover is effectively sealed, the problem of water leakage and dust entering at the license plate mounting hole on the automobile rear cover is effectively avoided, and rust at the license plate mounting hole on the automobile rear cover is effectively avoided. The application further provides a use method of the automobile rear cover license plate mounting hole sealing structure, which facilitates sealing of the license plate hole on the automobile rear cover through the automobile rear cover license plate mounting hole sealing structure and is conducive to reducing production cost.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile body and body accessories, and particularly relates to a license plate mounting hole sealing structure of an automobile rear cover and a use method thereof. BACKGROUND

[0002] With the increasing demand for automobile appearance modeling, more and more automobile rear license plates are fixedly mounted on the automobile rear cover and the automobile back door. During the period from the time when the automobile is delivered from the factory to the time when the user purchases the automobile and obtains the license plate, the four mounting points of the automobile license plate are exposed, which can easily cause sealing problems such as water leakage and dust entry. Moreover, some vehicle models need to be exported overseas, and the mounting points on the automobile rear cover are more. During the sea transportation of the vehicle, due to the long transportation period and the harsh environment, the mounting points are more likely to have sealing problems such as water leakage and dust entry, which can cause rust at the mounting points. The water and dust entering the automobile rear cover from the mounting points can easily cause the functional failure of the electrical devices of the automobile rear cover, thereby affecting the delivery quality of the automobile.

[0003] The license plate mounting hole arranged on the automobile rear cover and the automobile back door is usually designed to have a welded nut or a riveted nut on the back of the sheet metal for mounting and fixing the rear license plate. However, the sealing of the conventional flat hole is greatly increased in difficulty after the welded nut or the riveted nut is mounted. The existing solutions in the automobile industry usually use adhesive tape or a patch to seal the mounting points of the rear cover license plate. However, the adhesive tape or the patch is easy to fall off and has poor reliability. Some vehicle manufacturers use differential management of the automobile rear cover sheet metal stamping parts to solve the problem of water leakage and dust entry. However, this solution has certain limitations and high management cost, thereby increasing the production cost.

[0004] Therefore, it is urgent to develop a license plate mounting hole sealing structure of an automobile rear cover and a use method thereof, which is convenient to install, can effectively seal the license plate mounting hole on the automobile rear cover, can effectively avoid the problem of water leakage and dust entry at the license plate mounting hole of the automobile rear cover, can effectively avoid the rust at the license plate mounting hole of the automobile rear cover, and is conducive to reducing the production cost. SUMMARY

[0005] The present application is developed to solve the above problems, and aims to provide a license plate mounting hole sealing structure of an automobile rear cover and a use method thereof, which is convenient to install, can effectively seal the license plate mounting hole on the automobile rear cover, can effectively avoid the problem of water leakage and dust entry at the license plate mounting hole of the automobile rear cover, can effectively avoid the rust at the license plate mounting hole of the automobile rear cover, and is conducive to reducing the production cost. In order to achieve the above purpose, the technical scheme adopted by the present application is as follows.

[0006] The present application provides a license plate mounting hole sealing structure of an automobile rear cover, which has the following characteristics. The license plate mounting hole sealing structure comprises a fixed sleeve arranged on one side of the automobile rear cover and a sealing assembly arranged on the other side of the automobile rear cover. The sealing assembly is movably arranged in the fixed sleeve.

[0007] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the sealing assembly can further comprise a sealing plug body, one end of the sealing plug body movably penetrates into the fixed sleeve, and the sealing plug body is provided with a sealing plug head at an end away from the fixed sleeve.

[0008] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the sealing plug body can be provided with a sealing gasket, and the sealing gasket movably sheaths on the sealing plug body.

[0009] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the sealing gasket can be provided with a mounting gap, and the sealing gasket is stacked on the sealing plug body.

[0010] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the sealing plug body can be provided with a limiting protrusion on a side away from the sealing plug head.

[0011] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the sealing plug head can be provided with a sealing ring, and the sealing ring movably sheaths on the sealing plug head.

[0012] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the sealing ring can be provided with a first sealing flange, and the first sealing flange abuts against the automobile rear cover; the sealing ring can be provided with a second sealing flange, and the second sealing flange abuts against the fixed sleeve.

[0013] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the fixed sleeve can be arranged on the inner side of the automobile rear cover.

[0014] In the automobile rear cover license plate mounting hole sealing structure provided by the application, the fixed sleeve can penetrate into the license plate mounting hole of the automobile rear cover.

[0015] The application further provides a use method of the automobile rear cover license plate mounting hole sealing structure, which is used for sealing the license plate hole of the automobile rear cover through the automobile rear cover license plate mounting hole sealing structure, and comprises the following steps: step S1, installing the fixed sleeve on the automobile rear cover; step S2, assembling the sealing assembly; and step S3, arranging the sealing assembly on the automobile rear cover and connecting the fixed sleeve.

[0016] The technical effect of the present invention is as follows: the automobile rear cover license plate mounting hole sealing structure provided by the present invention includes a fixed sleeve arranged on one side of the automobile rear cover and a sealing assembly arranged on the other side of the automobile rear cover, the sealing assembly can be movably arranged in the fixed sleeve, and the license plate mounting hole on the automobile rear cover is effectively sealed by the fixed sleeve and the sealing assembly, thereby improving the sealing performance of the automobile rear cover license plate mounting hole, effectively sealing the automobile rear cover license plate mounting hole, effectively avoiding the problem of water leakage and dust ingress at the automobile rear cover license plate mounting hole, and effectively avoiding rust at the automobile rear cover license plate mounting hole. The present invention also provides a method for using the automobile rear cover license plate mounting hole sealing structure, which facilitates sealing the automobile rear cover license plate hole through the automobile rear cover license plate mounting hole sealing structure.

[0017] Therefore, the automobile rear cover license plate mounting hole sealing structure and the use method thereof provided by the present invention are easy to install, can effectively seal the automobile rear cover license plate mounting hole, can effectively prevent water leakage and dust ingress at the automobile rear cover license plate mounting hole, can effectively prevent rust at the automobile rear cover license plate mounting hole, and are conducive to reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This manual includes the following drawings, which show the following contents:

[0019] Figure 1 2 is a schematic structural diagram of a sealing structure for a license plate mounting hole on a rear cover of a vehicle according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-section of the sealing structure for the license plate mounting hole on the rear cover of a car according to an embodiment of the present invention. Figure One ;

[0021] Figure 3 is a schematic structural diagram of a sealing assembly in a front view direction according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a sealing assembly in a top view according to an embodiment of the present invention;

[0023] Figure 5 is a cross-sectional view of a sealing assembly in the direction of the front view in an embodiment of the present invention;

[0024] Figure 6 yes Figure 5 A partial enlarged view of part A;

[0025] Figure 7 2 is a schematic structural diagram of a sealing plug in a front view according to an embodiment of the present invention;

[0026] Figure 8 This is a cross-section of the sealing structure for the license plate mounting hole on the rear cover of a car according to an embodiment of the present invention. Figure Two .

[0027] The figure is marked as: automobile rear cover-1, license plate mounting hole-2, fixed sleeve-10, welded fixed sleeve-11, riveted fixed sleeve-12, sealing assembly-20, sealing plug body-21, sealing plug-22, sealing ring mounting groove-221, tool groove-222, sealing gasket-23, installation gap-231, limiting protrusion-24, sealing ring-25, first sealing flange-251, installation protrusion-252, second sealing flange-253. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application will be further described below with reference to the accompanying drawings, and the purpose is to help the technical personnel in the field to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application, and to help its implementation.

[0029] Figure 1 is a structure schematic view of the license plate mounting hole sealing structure of the automobile rear cover in the embodiment of the present application; Figure 2 is a cross-sectional view of the license plate mounting hole sealing structure of the automobile rear cover in the embodiment of the present application Figure One .

[0030] As shown in Figure 1 and Figure 2 , the license plate mounting hole sealing structure of the automobile rear cover provided by the present application comprises a fixed sleeve 10 arranged on one side of the automobile rear cover 1 and a sealing assembly 20 arranged on the other side of the automobile rear cover 1, the sealing assembly 20 is movably arranged in the fixed sleeve 10, and the fixed sleeve 10 and the sealing assembly 20 effectively seal the license plate mounting hole 2 on the automobile rear cover 1, thereby improving the sealing performance of the license plate mounting hole 2 on the automobile rear cover 1, effectively sealing the license plate mounting hole 2 on the automobile rear cover 1, effectively avoiding the problem of water leakage and dust entering the license plate mounting hole 2 on the automobile rear cover 1, and effectively avoiding the rusting of the license plate mounting hole 2 on the automobile rear cover 1. The present application also provides a use method of the license plate mounting hole sealing structure of the automobile rear cover, which facilitates the sealing of the license plate hole of the automobile rear cover through the license plate mounting hole sealing structure of the automobile rear cover.

[0031] Figure 3 is a structure schematic view of the sealing assembly in the front view direction in the embodiment of the present application; Figure 4 is a structure schematic view of the sealing assembly in the top view direction in the embodiment of the present application;

[0032] As shown in Figure 3 and Figure 4As shown, the sealing assembly 20 comprises a sealing plug body 21, one end of the sealing plug body 21 movably penetrates in the fixed sleeve 10, the sealing plug body 21 is provided with a sealing plug 22 away from the fixed sleeve 10, the sealing plug body 21 is cylindrical, the sealing plug body 21 is provided with a sealing gasket 23, the sealing gasket 23 is funnel-shaped, the sealing gasket 23 movably sets on the sealing plug body 21, the sealing gasket 23 can enhance the sealing between the sealing plug body 10 and the fixed sleeve 10, effectively prevent water and dust from entering the inside of the automobile rear cover 1 between the sealing plug body 10 and the fixed sleeve 10, improve the sealing of the license plate mounting hole 2 of the automobile rear cover 1, effectively seal the license plate mounting hole 2 of the automobile rear cover, effectively avoid the problem of water leakage and dust entering the license plate mounting hole 2 of the automobile rear cover 1, effectively avoid the rust of the license plate mounting hole 2 of the automobile rear cover 1.

[0033] As shown in the figure, Figure 1 The sealing gasket 23 is provided with a mounting gap 231, the sealing gasket 23 can be conveniently set on the sealing plug body 21 through the mounting gap 231, the sealing gasket 23 can be conveniently disassembled or mounted, a plurality of sealing gaskets 23 can be uniformly stacked on the sealing plug body 21, thereby further improving the sealing effect between the sealing plug body 10 and the fixed sleeve 10, effectively preventing water and dust from entering the inside of the automobile rear cover 1 between the sealing plug body 10 and the fixed sleeve 10. In order to further improve the sealing effect of the sealing gasket 23, the mounting gaps 231 between the sealing gaskets 23 can be staggered, so that a plurality of sealing gaskets 23 form a spiral structure, thereby further improving the sealing effect between the sealing plug body 10 and the fixed sleeve 10, effectively preventing water and dust from entering the inside of the automobile rear cover 1 between the sealing plug body 10 and the fixed sleeve 10, improving the sealing of the license plate mounting hole 2 of the automobile rear cover 1, effectively sealing the license plate mounting hole 2 of the automobile rear cover, effectively avoiding the problem of water leakage and dust entering the license plate mounting hole 2 of the automobile rear cover 1, effectively avoiding the rust of the license plate mounting hole 2 of the automobile rear cover 1.

[0034] The sealing plug body 21 is provided with a limiting protrusion 24 away from the sealing plug 22, the limiting protrusion 24 can limit the sealing gasket 23, effectively prevent the sealing gasket 23 from slipping off the sealing plug body 21, improve the reliability of the sealing effect of the sealing gasket 23.

[0035] Figure 5 It is a sectional view of the sealing assembly in the embodiment of the application in the front view direction; Figure 6 It is Figure 5 A partial enlarged view of part A in

[0036] As shown in the figure, Figure 5 And Figure 6As shown, the sealing plug 22 is provided with a sealing ring 25, the sealing ring 25 is movably arranged on the sealing plug 22, the sealing ring 25 is provided with a first sealing flange 251, the first sealing flange 251 is annular and uniformly arranged on the circumference of the sealing ring 25, the edge of the first sealing flange 251 abuts against the automobile rear cover 1, when the sealing plug body 21 is arranged in the fixing sleeve 10, the first sealing flange 251 can seal the gap between the sealing plug body 22 and the automobile rear cover 1, effectively preventing water and dust from entering the automobile rear cover 1 from the gap between the sealing plug body 22 and the automobile rear cover 1, improving the sealing performance of the license plate mounting hole 2 of the automobile rear cover 1, effectively sealing the license plate mounting hole 2 of the automobile rear cover, effectively avoiding the problem of water leakage and dust entering at the license plate mounting hole 2 of the automobile rear cover 1, effectively avoiding rust at the license plate mounting hole 2 of the automobile rear cover 1.

[0037] Figure 7 It is a structural schematic view of the sealing plug in the front view direction in the embodiment of the application.

[0038] As Figure 7 shown, the sealing plug 22 is provided with a sealing ring mounting groove 221, the sealing ring mounting groove 221 is uniformly arranged on the sealing plug 22, the sealing ring 25 is provided with a mounting protrusion 252 matched with the sealing ring mounting groove 221, the mounting protrusion 252 is clamped in the sealing ring mounting groove 221, so that the sealing ring 25 is detachably sleeved on the sealing plug 22, facilitating disassembly, replacement or maintenance, which is conducive to reducing production cost, replacing the sealing ring 25 with poor quality in time, and improving the reliability of the structure.

[0039] As Figure 7 shown, the sealing plug 22 is further provided with a tool groove 222, the tool groove 222 is in the shape of "rice", and the sealing plug body 21 can be installed by using a general tool such as a "straight" or "cross" screwdriver, which facilitates the installation of the automobile rear cover license plate mounting hole sealing structure provided by the application.

[0040] As Figure 2As shown, the fixed sleeve 10 includes a welded fixed sleeve 11 arranged on the inner side of the automobile rear cover 1, the welded fixed sleeve 11 is arranged on the inner side of the automobile rear cover 1 by welding, the inner wall of the welded fixed sleeve 11 is provided with internal threads, and the sealing plug body 21 can be movably arranged in the fixed sleeve 10 through the spiral structure formed by stacking the sealing gaskets 25. The sealing gaskets 23 are uniformly arranged between the fixed sleeve 10 and the sealing plug body 21, which can effectively prevent water and dust from entering the interior of the automobile rear cover 1 from between the sealing plug body 10 and the fixed sleeve 10, improve the sealing performance of the license plate mounting hole 2 of the automobile rear cover 1, effectively seal the license plate mounting hole 2 of the automobile rear cover, and effectively prevent water leakage and dust entering at the license plate mounting hole 2 of the automobile rear cover 1, effectively preventing rust at the license plate mounting hole 2 of the automobile rear cover 1.

[0041] Figure 8 is the cross section of the license plate mounting hole sealing structure of the automobile rear cover in the embodiment of the application Figure Two .

[0042] Some models are not convenient to weld the fixed sleeve 10 on the inner side of the automobile rear cover 1 after the whole vehicle is delivered, and the welded fixed sleeve 10 cannot be applied to this case, such as Figure 8 As shown, the fixed sleeve 10 further includes a riveted fixed sleeve 12 arranged in the license plate mounting hole 2 of the automobile rear cover 1, the riveted fixed sleeve 12 is arranged in the license plate mounting hole 2 of the automobile rear cover 1 by riveting, the inner wall of the riveted fixed sleeve 12 is provided with internal threads, and the sealing plug body 21 can be movably arranged in the fixed sleeve 10 through the spiral structure formed by stacking the sealing gaskets 25. The sealing gaskets 23 are uniformly arranged between the fixed sleeve 10 and the sealing plug body 21. The riveted fixed sleeve 12 can realize the sealing of the license plate mounting hole 2 of the vehicle model that has been delivered or the automobile rear cover has been assembled, improve the reliability of the structure, and further reduce the production cost.

[0043] As shown in Figure 8 The sealing ring 25 is provided with a second sealing flange 253, the second sealing flange 253 is annular, is uniformly arranged on the circumference of the sealing ring 25, and is located on the inner side of the first sealing flange 251. The second sealing flange 253 abuts against the riveted fixed sleeve 12, and when the sealing plug body 21 is arranged in the fixed sleeve 10, the second sealing flange 253 can seal the gap between the sealing plug body 22 and the riveted fixed sleeve 12, effectively prevent water and dust from entering the interior of the automobile rear cover 1 from between the sealing plug body 22 and the riveted fixed sleeve 12, improve the sealing performance of the license plate mounting hole 2 of the automobile rear cover 1, effectively seal the license plate mounting hole 2 of the automobile rear cover, effectively prevent water leakage and dust entering at the license plate mounting hole 2 of the automobile rear cover 1, and effectively prevent rust at the license plate mounting hole 2 of the automobile rear cover 1.

[0044] The sealing gasket 23 and the sealing ring 25 are made of TPE material, which has high elasticity, aging resistance, oil resistance and other excellent performances, and has the characteristics of convenient processing and wide processing mode, thereby reducing the production cost.

[0045] The application further provides a use method of the license plate mounting hole sealing structure of the automobile rear cover, which is used for sealing the license plate hole of the automobile rear cover through the license plate mounting hole sealing structure of the automobile rear cover, and comprises the following steps:

[0046] Step S1, selecting a suitable fixing sleeve 10 according to whether the automobile rear cover 1 has been assembled, and selecting a welding type fixing sleeve 11 when the automobile rear cover 1 has not been assembled, and selecting a riveting type fixing sleeve 12 when the automobile rear cover 1 has been connected with the whole vehicle, and installing the fixing sleeve 10 on the automobile rear cover 1.

[0047] Step S2, stacking the sealing gasket 21 on the sealing plug body 21, and installing the sealing ring 25 on the sealing plug head 22, and completing the assembly of the sealing assembly 20.

[0048] Step S3, setting the sealing assembly 20 on the automobile rear cover 1 through a screwdriver or other tools, rotating the sealing plug body 21 in the fixing sleeve 10, uniformly distributing the sealing gasket 23 between the sealing plug body 21 and the fixing sleeve 10, and pressing the first sealing flange 251 of the sealing ring 25 on the automobile rear cover 1.

[0049] Effects of the embodiment

[0050] The automobile rear cover license plate mounting hole sealing structure provided by the application comprises a fixed sleeve 10 arranged on one side of an automobile rear cover 1 and a sealing assembly 20 arranged on the other side of the automobile rear cover 1, the sealing assembly 20 is movably arranged in the fixed sleeve 10, the license plate mounting hole 2 on the automobile rear cover 1 is effectively sealed through the fixed sleeve 10 and the sealing assembly 20, the sealing property of the license plate mounting hole 2 on the automobile rear cover 1 is improved, the license plate mounting hole 2 on the automobile rear cover 1 is effectively sealed, the problem of water leakage and dust entering at the license plate mounting hole 2 on the automobile rear cover 1 is effectively avoided, rust at the license plate mounting hole 2 on the automobile rear cover 1 is effectively avoided, and a use method of the automobile rear cover license plate mounting hole sealing structure is further provided, which facilitates sealing of the license plate hole of the automobile rear cover through the automobile rear cover license plate mounting hole sealing structure, the automobile rear cover license plate mounting hole sealing structure and the use method thereof are convenient to install, can effectively seal the license plate mounting hole on the automobile rear cover, can effectively avoid the problem of water leakage and dust entering at the license plate mounting hole of the automobile rear cover, can effectively avoid rust at the license plate mounting hole of the automobile rear cover, and are favorable for reducing production cost.

[0051] The application is described above with reference to the drawings. Obviously, the specific implementation of the application is not limited to the above manner. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the application, or the above concept and technical scheme of the application are directly applied to other occasions without improvement, they are all within the protection scope of the application.

Claims

1. A sealing structure for a license plate mounting hole on a rear cover of a car, characterized in that: The utility model relates to a sealing assembly for automobile rear cover, including the fixed sleeve (10) of setting in one side of automobile rear cover (1) and the sealing assembly (20) of setting in the other side of automobile rear cover (1), the sealing assembly (20) movably sets in fixed sleeve (10), the sealing assembly (20) includes sealing stopper body (21), one end of sealing stopper body (21) movably passes in fixed sleeve (10), the sealing stopper body (21) is equipped with sealing plug (22) on the end away from fixed sleeve (10), sealing plug (22) is equipped with sealing ring (25), sealing ring (25) movably sets on sealing plug (22), sealing ring (25) is equipped with first sealing flange (251), and first sealing flange (251) abuts with automobile rear cover (1), sealing ring (25) is equipped with second sealing flange (253), and second sealing flange (253) abuts with fixed sleeve (10).

2. The automotive deck lid license plate mount aperture seal structure of claim 1, wherein, The sealing stopper body (21) is provided with a sealing gasket (23) movably sleeved on the sealing stopper body (21).

3. The automotive deck lid license plate mount aperture seal structure of claim 2, wherein, The sealing gasket (23) is provided with a mounting gap (231), and the sealing gasket (23) is stacked on the sealing stopper body (21).

4. The automotive deck lid license plate bezel seal structure of claim 3, wherein, The sealing stopper body (21) is provided with a limiting protrusion (24) away from the sealing plug (22).

5. The automotive deck lid license plate bezel seal structure of claim 1, wherein, The fixed sleeve (10) is arranged on the inner side of the automobile rear cover (1).

6. The automotive deck lid license plate bezel seal structure of claim 1, wherein, The fixed sleeve (10) is arranged in the license plate mounting hole (2) of the automobile rear cover (1).

7. A method of using the trunk license plate opening seal structure according to any one of the preceding claims 1 to 6, wherein The utility model relates to a sealing assembly for automobile rear cover, including the following steps: S1, the fixed sleeve (10) is installed on the automobile rear cover (1); S2, the sealing assembly (20) is assembled; S3, the sealing assembly (20) is arranged on the automobile rear cover (1) and is connected with the fixed sleeve (10).

Citation Information

Patent Citations

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