A sealing structure and sealing method for an automotive intake manifold

Abstract

This invention discloses a sealing structure and method for an automotive intake manifold, comprising a sealing body fixedly sleeved on a bottom bracket. The sealing body includes a sealing strip, an outer layer, and an inner layer. An adsorption mechanism is fixedly connected to the inner side of the inner layer, and a sealing performance detection mechanism is fixedly connected inside the sealing strip. The sealing performance detection mechanism includes a first copper block and a second copper block. A cavity is provided inside the sealing strip. The first copper block is fixedly attached to the inner wall of the top of the cavity, and the second copper block is fixedly attached to the inner wall of the bottom of the cavity. A first copper sheet is fixedly connected to one outer wall of the first copper block, and the first copper sheet passes through the sealing strip and is fixedly attached to the outer wall of the outer layer. A second copper sheet is fixedly connected to one outer wall of the second copper block. The sealing structure and method for an automotive intake manifold disclosed in this invention can monitor the sealing performance at different locations, which can compensate for the inability to distinguish the sealing performance by appearance and reduce the difficulty of maintenance.

Description

Technical Field

[0001] This invention relates to the field of intake manifold sealing technology, and more particularly to a sealing structure and sealing method for an automotive intake manifold. Background Technology

[0002] The seals prevent air or gas mixture leakage by filling the gap between the intake manifold and the chassis, ensuring stable pressure inside the engine combustion chamber, maintaining precise air-fuel ratio control, and avoiding problems such as power loss, increased fuel consumption, or engine stalling caused by air leakage.

[0003] Because the seals are located between the intake manifold and the chassis, and because they are compressed, it's difficult to see if there are any abnormalities. If a leak occurs at the intake manifold connection, it's necessary to check each leak location and cause individually. Furthermore, since there are usually multiple seals, the troubleshooting process takes even longer. Therefore, to improve maintenance efficiency, it's sometimes necessary to replace all seals at once, resulting in higher maintenance costs. Summary of the Invention

[0004] This invention discloses a sealing structure and sealing method for an automotive intake manifold, aiming to solve the technical problem that if an air leakage fault occurs at the connection of the intake manifold, it is necessary to check the location and cause of the leakage one by one, and because there are usually multiple seals, the troubleshooting time is longer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing structure for an automotive intake manifold includes a sealing body, which is fixedly sleeved on a bottom bracket. The sealing body includes a sealing strip, an outer layer, and an inner layer. An adsorption mechanism is fixedly connected to the inner side of the inner layer, and a sealing performance detection mechanism is fixedly connected to the inner side of the sealing strip.

[0007] The sealing performance testing mechanism includes a copper block one and a copper block two. A cavity is provided inside the sealing strip. The copper block one is fixedly attached to the inner wall of the top of the cavity, and the copper block two is fixedly attached to the inner wall of the bottom of the cavity. A copper sheet one is fixedly connected to one side of the outer wall of the copper block one, and the copper sheet one passes through the sealing strip and is fixedly attached to the outer wall of the outer layer. A copper sheet two is fixedly connected to one side of the outer wall of the copper block two, and the copper sheet two also passes through the sealing strip and is fixedly attached to the outer wall of the outer layer.

[0008] By incorporating a sealing detection mechanism, copper blocks one and two are spaced apart. When the intake manifold presses against the sealing strip and deforms it, copper blocks one and two fit tightly together. Based on copper's excellent electrical conductivity, during maintenance or routine testing, the two output terminals of a multimeter can be placed on copper blocks one and two respectively to check for continuity, thus determining whether copper blocks one and two are properly fitted. This allows for the monitoring of sealing at different locations, and the monitoring method is simple, compensating for the inability to distinguish sealing from appearance and reducing maintenance difficulty.

[0009] In a preferred embodiment, a rubber patch and an adhesive area are fixedly attached to one side of the outer wall of the copper sheet, and the adhesive area is located below the rubber patch. A rubber cover sheet is fixedly connected to the bottom end of the rubber patch, and the rubber cover sheet is attached to the copper sheet through the adhesive area.

[0010] A rubber patch 2 and an adhesive area 2 are fixedly attached to one side of the outer wall of the copper sheet 2, and the adhesive area 2 is located below the rubber patch 2. A rubber cover sheet 2 is fixedly connected to the bottom end of the rubber patch 2, and the rubber cover sheet 2 is attached to the copper sheet 2 through the adhesive area 2.

[0011] By setting up rubber patch one, rubber cover plate one, rubber patch two, and rubber cover plate two, rubber patch one and rubber patch two can cover copper sheet one and copper sheet two, avoiding contact between the two and other conductive components, which would affect the accuracy of the sealing test. Rubber cover plate one and rubber cover plate two can establish an insulating barrier while also preventing dust, oil, and other impurities from adhering to copper sheet one and copper sheet two and affecting the test results.

[0012] In a preferred embodiment, the bottom outer wall of the first copper block and the top outer wall of the second copper block are both provided with slots, and ultra-thin plastic spacers are simultaneously engaged in the two slots, and the cavity is filled with perfluororubber.

[0013] By incorporating an ultra-thin plastic partition, the partition breaks when the sealing strip is compressed. The broken fragments adhere to the perfluororubber, creating a gap between copper block one and copper block two for their connection. This structure reduces the difficulty of creating the gap, further simplifying product manufacturing.

[0014] In a preferred embodiment, the adsorption mechanism includes multiple micro-suction cups, and the multiple micro-suction cups are divided into two groups, with the two groups of micro-suction cups respectively fixedly connected to the outer walls of the opposite sides of multiple inner layers.

[0015] Each group of multiple micro suction cups has a connecting piece fixedly connected to one side of its outer wall, and a lifting piece fixedly connected to the bottom outer wall of the connecting piece.

[0016] A sealing method for a sealing structure of an automotive intake manifold includes the following specific steps:

[0017] S1: Fit the main body of the seal onto the bottom bracket;

[0018] S2: Press the inner layer inward to press multiple micro suction cups against the inner wall of the bottom bracket and expel the air from inside the micro suction cups;

[0019] S3: Install the intake manifold above the main body of the seal;

[0020] S4: Check for airtightness;

[0021] S4 includes the following specific steps:

[0022] S41: The sealing strip is squeezed, the internal ultra-thin plastic partition is broken, and copper block one and copper block two stick together;

[0023] S42: Place both ends of the multimeter onto the surfaces of copper plate one and copper plate two respectively, and check if there is a circuit. If there is a circuit, it is determined to be in a sealed state.

[0024] The presence of an adsorption mechanism ensures a tight connection between the bottom support and the main body of the seal, further preventing the possibility of air leakage. At the same time, the multiple micro suction cups can be detached by tearing off the tab, making it easy to remove and replace the main body of the seal.

[0025] As described above, a sealing structure for an automotive intake manifold includes a sealing body fixedly fitted onto a bottom bracket. The sealing body comprises a sealing strip, an outer layer, and an inner layer. An adsorption mechanism is fixedly connected to the inner side of the inner layer, and a sealing performance detection mechanism is fixedly connected within the sealing strip. The sealing performance detection mechanism includes a first copper block and a second copper block. A cavity is provided within the sealing strip. The first copper block is fixedly attached to the top inner wall of the cavity, and the second copper block is fixedly attached to the bottom inner wall of the cavity. A first copper sheet is fixedly connected to one outer wall of the first copper block, passing through the sealing strip and fixedly attached to the outer wall of the outer layer. Similarly, a second copper sheet is fixedly connected to one outer wall of the second copper block, also passing through the sealing strip and fixedly attached to the outer wall of the outer layer. The sealing structure and method for an automotive intake manifold provided by this invention enable monitoring of sealing performance at different locations, compensating for the inability to distinguish sealing performance by appearance and reducing maintenance difficulty. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall installation structure of the sealing structure for an automotive intake manifold proposed in this invention.

[0027] Figure 2 This is a schematic diagram of the overall structure of a sealing structure for an automotive intake manifold proposed in this invention.

[0028] Figure 3 This is a schematic diagram showing the adsorption mechanism of a sealing structure for an automotive intake manifold proposed in this invention.

[0029] Figure 4 This is a schematic diagram showing the disassembled sealing performance testing mechanism of a sealing structure for an automotive intake manifold proposed in this invention.

[0030] Figure 5 This is a cross-sectional view of the sealing strip of a sealing structure for an automotive intake manifold proposed in this invention.

[0031] Figure 6 This is a cross-sectional view of the sealing strip of a sealing structure for an automotive intake manifold proposed in this invention.

[0032] In the diagram: 1. Bottom support; 2. Sealing component body; 3. Sealing test mechanism; 4. Adsorption mechanism; 201. Outer layer; 202. Inner layer; 203. Cavity; 204. Sealing strip; 205. Perfluororubber; 301. Copper block one; 302. Copper sheet one; 303. Adhesive area one; 304. Rubber patch one; 305. Rubber cover sheet one; 306. Rubber cover sheet two; 307. Rubber patch two; 308. Adhesive area two; 309. Copper sheet two; 310. Copper block two; 311. Slot; 312. Ultra-thin plastic partition; 401. Miniature suction cup; 402. Connecting piece; 403. Peeling piece. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] The sealing structure and sealing method for an automotive intake manifold disclosed in this invention are mainly applied to automotive intake manifold installation scenarios.

[0035] Reference Figures 1-5 A sealing structure for an automotive intake manifold includes a sealing body 2, which is fixedly sleeved on a bottom bracket 1. The sealing body 2 includes a sealing strip 204, an outer layer 201, and an inner layer 202. An adsorption mechanism 4 is fixedly connected to the inner side of the inner layer 202, and a sealing performance detection mechanism 3 is fixedly connected inside the sealing strip 204.

[0036] The sealing performance testing mechanism 3 includes a copper block 301 and a copper block 310. A cavity 203 is provided within the sealing strip 204. The copper block 301 is fixedly attached to the inner top wall of the cavity 203, and the copper block 310 is fixedly attached to the inner bottom wall of the cavity 203. A copper sheet 302 is fixedly connected to one outer wall of the copper block 301, and the copper sheet 302 passes through the sealing strip 204 and is fixedly attached to the outer wall of the outer layer 201. A copper sheet 310 is fixedly connected to one outer wall of the copper block 310, and the copper sheet 310 also passes through the sealing strip 204 and is fixedly attached to the outer wall of the outer layer 201. In the sealing performance testing mechanism 3, there is a certain gap between the copper blocks 301 and 310. When the sealing body 2 is inserted into the bottom... When the intake manifold is installed on the bracket 1, it presses against the sealing strip 204 and deforms the sealing strip 204. The distance between copper block 301 and copper block 310 is set according to the deformation distance. When the intake manifold and the bottom bracket 1 are fully installed, copper block 301 and copper block 310 fit tightly together. Based on the excellent electrical conductivity of copper, during maintenance or routine testing, the two output terminals of a multimeter can be placed on copper plate 302 and copper plate 309 respectively to check whether there is a circuit. This will determine whether copper block 301 and copper block 310 fit together, thus enabling the monitoring of sealing at different positions. The monitoring method is simple and can make up for the lack of visual differentiation, reducing the difficulty of maintenance.

[0037] Reference Figure 4 In a preferred embodiment, a rubber patch 304 and an adhesive area 303 are fixedly attached to one side of the outer wall of the copper sheet 302, and the adhesive area 303 is located below the rubber patch 304. A rubber cover sheet 305 is fixedly connected to the bottom end of the rubber patch 304, and the rubber cover sheet 305 is attached to the copper sheet 302 through the adhesive area 203.

[0038] Reference Figure 4In a preferred embodiment, a rubber patch 307 and an adhesive area 308 are fixedly attached to one outer wall of the copper sheet 309, with the adhesive area 308 located below the rubber patch 307. A rubber cover 306 is fixedly connected to the bottom end of the rubber patch 307, and the rubber cover 306 is attached to the copper sheet 309 via the adhesive area 308. The rubber patch 304 and the rubber patch 307 can cover the copper sheet 302 and the copper sheet 309. To prevent contact between the two and other conductive components, which could affect the accuracy of the sealing test, rubber cover sheet 305 and rubber cover sheet 306 can be lifted at adhesive area 303 and adhesive area 308, allowing for sealing tests at the lifted positions. Normally, rubber cover sheet 305 and rubber cover sheet 306 cover copper sheet 302 and copper sheet 309, establishing an insulating barrier while preventing impurities such as dust and oil from adhering to copper sheet 302 and copper sheet 309 and affecting the test results.

[0039] Reference Figure 4 and Figure 5 In a preferred embodiment, the bottom outer wall of copper block 301 and the top outer wall of copper block 310 are both provided with slots 311, and ultra-thin plastic spacers 312 are simultaneously engaged in the two slots 311. The cavity 203 is filled with perfluororubber 205. During the production of this sealing structure, the sealing performance testing mechanism 3 can be fixed in the cavity 203 first, and then the perfluororubber 205 can be filled. After production, the solidified perfluororubber 205 will be tightly attached to the outside of the ultra-thin plastic spacer 312. When the sealing strip 204 is squeezed, the ultra-thin plastic spacer 312 will break, and the broken fragments will adhere to the perfluororubber 205. A gap is formed between copper block 301 and copper block 310 for the connection between the two. Under this structure, the difficulty of generating the gap can be reduced, and the production difficulty of the product can be further reduced.

[0040] Reference Figure 3 In a preferred embodiment, the adsorption mechanism 4 includes a plurality of micro suction cups 401, and the plurality of micro suction cups 401 are divided into two groups, and the two groups of micro suction cups 401 are respectively fixedly connected to the outer walls of the opposing sides of the plurality of inner layers 202.

[0041] Reference Figure 3In a preferred embodiment, a connecting piece 402 is fixedly connected to one side of the outer wall of each group of multiple micro suction cups 401, and a peeling piece 403 is fixedly connected to the bottom outer wall of the connecting piece 402. The inner adhesive layer 202 is attached to the inner wall of the bottom bracket 1. By pressing the inner adhesive layer 202, multiple micro suction cups 401 can be adsorbed onto the inner wall of the bottom bracket 1 to ensure a tight connection between the bottom bracket 1 and the sealing body 2, further avoiding the possibility of air leakage. At the same time, by tearing the peeling piece 403, multiple micro suction cups 401 can be detached, making it convenient to remove and replace the sealing body 2.

[0042] Reference Figure 6 A sealing method for a sealing structure of an automotive intake manifold includes the following specific steps:

[0043] S1: Fit the sealing body 2 onto the bottom bracket 1;

[0044] S2: Press the inner layer 202 inward to drive multiple micro suction cups 401 to press against the inner wall of the bottom bracket 1, and expel the air inside the micro suction cups 401;

[0045] S3: Install the intake manifold above the sealing body 2;

[0046] S4: Check the seal.

[0047] Reference Figure 6 In a preferred embodiment, S4 includes the following specific steps:

[0048] S41: The sealing strip 204 is squeezed, the internal ultra-thin plastic partition 312 is broken, and copper block 1 301 and copper block 2 310 are stuck together;

[0049] S42: Place both ends of the multimeter onto the surfaces of copper strip 302 and copper strip 309 respectively, and check if there is a flow. If there is a flow, it is determined to be in a sealed state.

[0050] Working principle: In the sealing test mechanism 3, there is a certain gap between copper block 301 and copper block 310. When the sealing body 2 is inserted into the bottom bracket 1 and the intake manifold is installed, the intake manifold presses on the sealing strip 204 and deforms the sealing strip 204. The gap between copper block 301 and copper block 310 is set according to the deformation distance. When the intake manifold and the bottom bracket 1 are fully installed, copper block 301 and copper block 310 are tightly fitted. At this time, based on the excellent electrical conductivity of copper, during maintenance or daily testing, the two output terminals of a multimeter are respectively attached to copper plate 302 and copper plate 309 to check whether there is a circuit. This can determine whether copper block 301 and copper block 310 are fitted, thus enabling the monitoring of sealing at different positions. The monitoring method is simple and can make up for the lack of visual differentiation, reducing the difficulty of maintenance.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sealing structure of an automobile intake manifold comprising a sealing member main body (2), characterized by, The sealing body (2) is fixedly sleeved on the bottom support (1), the sealing body (2) comprises a sealing strip (204), an outer adhesive layer (201) and an inner adhesive layer (202), the inner side of the inner adhesive layer (202) is fixedly connected with an adsorption mechanism (4), and the sealing strip (204) is fixedly connected with a sealing detection mechanism (3) inside. The sealing detection mechanism (3) comprises a copper block one (301) and a copper block two (310), the sealing strip (204) is provided with a cavity (203) inside, the copper block one (301) is fixedly attached to the top end inner wall of the cavity (203), and the copper block two (310) is fixedly attached to the bottom end inner wall of the cavity (203), one side outer wall of the copper block one (301) is fixedly connected with a copper sheet one (302), and the copper sheet one (302) is fixedly attached to the outer wall of the outer adhesive layer (201) through the sealing strip (204), one side outer wall of the copper block two (310) is fixedly connected with a copper sheet two (310), and the copper sheet two (310) is also fixedly attached to the outer wall of the outer adhesive layer (201) through the sealing strip (204).

2. The sealing structure of an automobile intake manifold according to claim 1, wherein One side outer wall of the copper sheet one (302) is fixedly attached with a rubber patch one (304) and a glue area one (303), and the glue area one (303) is located below the rubber patch one (304), the bottom end of the rubber patch one (304) is fixedly connected with a rubber cover one (305), and the rubber cover one (305) is attached to the copper sheet one (302) through the glue area one (203).

3. The sealing structure of an automobile intake manifold according to claim 1, wherein One side outer wall of the copper sheet two (309) is fixedly attached with a rubber patch two (307) and a glue area two (308), and the glue area two (308) is located below the rubber patch two (307), the bottom end of the rubber patch two (307) is fixedly connected with a rubber cover two (306), and the rubber cover two (306) is attached to the copper sheet two (309) through the glue area two (308).

4. The sealing structure of an automobile intake manifold according to claim 1, wherein The bottom end outer wall of the copper block one (301) and the top end outer wall of the copper block two (310) are provided with clamping grooves (311) at the same time, and two clamping grooves (311) are simultaneously clamped with ultra-thin plastic partitions (312) inside, and the cavity (203) is filled with perfluorinated rubber (205).

5. The sealing structure of an automobile intake manifold according to claim 1, wherein The adsorption mechanism (4) comprises a plurality of micro suction cups (401), and the plurality of micro suction cups (401) are divided into two groups, and the two groups of micro suction cups (401) are fixedly connected to the opposite two side outer walls of the plurality of inner adhesive layers (202).

6. The sealing structure of an automobile intake manifold according to claim 5, wherein One side outer wall of each group of the plurality of micro suction cups (401) is fixedly connected with a connecting piece (402) at the same time, and the bottom end outer wall of the connecting piece (402) is fixedly connected with a lifting piece (403).

7. A sealing method of the sealing structure of the automobile intake manifold, applied to the sealing structure of the automobile intake manifold according to claim 4 or 6, characterized in that, The method comprises the following specific steps: S1: sleeve the sealing body (2) on the bottom support (1); S2: press the inner adhesive layer (202) inward, drive the plurality of micro suction cups (401) to press on the inner wall of the bottom support (1), and discharge the air inside the micro suction cups (401); S3: install an intake manifold above the sealing body (2); S4: check the sealing property.

8. The sealing method of a sealing structure of an automobile intake manifold according to claim 7, characterized by, The S4 comprises the following specific steps: S41: The sealing strip (204) is squeezed, the internal ultra-thin plastic partition (312) is broken, and copper block one (301) and copper block two (310) stick together; S42: Place the two ends of the multimeter onto the surfaces of copper sheet one (302) and copper sheet two (309) respectively, and check whether there is a circuit. If there is a circuit, it is determined to be in a sealed state.

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