Liquid silicone sealing structure for automobile ignition coil

Abstract

The present invention discloses a liquid silicone sealing structure for an automobile ignition coil, comprising a sealing plate, first through grooves are provided on both sides of the sealing plate, a bolt is threadedly connected to the inner cavity of the first through groove, first grooves are provided on both sides of the bottom of the first through groove and located at the bottom of the sealing plate, a first sealing gasket is provided in the inner cavity of the first groove, a first glue injection tube is connected to the top of one side of the first through groove, a second through groove is provided at the axis of the sealing plate, and second grooves are provided on both sides of the bottom of the second through groove and located at the bottom of the sealing plate. The present invention can effectively improve the sealing effect when using liquid silicone as a sealing material through the coordinated use of the sealing plate, the first through groove, the bolt, the first groove, the first sealing gasket, the first glue injection tube, the second through groove, the second groove, the second sealing gasket, the wear-resistant layer, the high-temperature resistant layer, the bonding layer and the second glue injection tube.

Description

Technical Field

[0001] The invention relates to the technical field of liquid silicone, in particular to a liquid silicone sealing structure of an automobile ignition coil. Background Art

[0002] Liquid silicone is relative to solid high-temperature vulcanized silicone rubber. It is a liquid glue with good fluidity, fast vulcanization, safer and more environmentally friendly, and can fully meet food grade requirements. Liquid silicone has excellent tear strength, resilience, anti-yellowing, thermal stability, and heat aging resistance. It is mainly used in children's products, medical supplies and electronic products (buttons). At present, liquid silicone is also used for sealing in automobile ignition coils, but the outer shell of the existing ignition coil is connected together by snap-fit ​​or bolts. When using liquid silicone for sealing, the sealing effect of the sealing structure is poor, and water stains and dust can easily enter the inside of the coil, affecting the automobile ignition system. Summary of the invention

[0003] The purpose of the present invention is to provide a liquid silicone sealing structure for an automobile ignition coil, which has the advantage of good sealing effect and solves the problem that the shells of the existing ignition coils are connected together by snap-fitting or bolting, and when liquid silicone is used for sealing, the sealing effect of the sealing structure is poor, and water stains and dust easily enter the interior of the coil, thereby affecting the automobile ignition system.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid silicone sealing structure for an automobile ignition coil, comprising a sealing plate, a first through groove is provided on both sides of the sealing plate, a bolt is threadedly connected to the inner cavity of the first through groove, first grooves are provided on both sides of the bottom of the first through groove and located at the bottom of the sealing plate, a first sealing gasket is arranged in the inner cavity of the first groove, a first glue injection tube is connected to the top of one side of the first through groove, a second through groove is provided at the axis of the sealing plate, second grooves are provided on both sides of the bottom of the second through groove and located at the bottom of the sealing plate, a second sealing gasket is arranged in the inner cavity of the second groove, and a second glue injection tube is connected to the right side of the top of the second through groove.

[0005] Preferably, a through hole matched with the bolt is formed on the surface of the first sealing gasket, and a through hole matched with the second through groove is formed on the surface of the second sealing gasket.

[0006] Preferably, the second sealing gasket comprises a wear-resistant layer, a high-temperature resistant layer is adhered to the top of the wear-resistant layer, and a bonding layer is adhered to the top of the high-temperature resistant layer.

[0007] Preferably, the material of the wear-resistant layer is wear-resistant rubber, and the material of the high-temperature resistant layer is ceramic fiber.

[0008] Preferably, the material of the bonding layer is self-adhesive silicone rubber, and the material of the first sealing gasket is the same as that of the second sealing gasket.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The present invention can effectively improve the sealing effect when using liquid silicone as a sealing material through the coordinated use of a sealing plate, a first through groove, a bolt, a first groove, a first sealing pad, a first glue injection tube, a second through groove, a second groove, a second sealing pad, a wear-resistant layer, a high-temperature resistant layer, a bonding layer and a second glue injection tube, and prevent external water stains and dust from entering the interior of the coil, thereby solving the problem that the shells of the existing ignition coils are connected together by snap-fitting or bolting, and when liquid silicone is used for sealing, the sealing effect of the sealing structure is poor, and water stains and dust are easy to enter the interior of the coil, thereby affecting the automobile ignition system.

[0011] 2. The present invention provides a through hole so that the ignition coil can be better installed on the car. By providing a wear-resistant layer, the wear resistance of the first sealing gasket and the second sealing gasket can be effectively improved, and the service life of the first sealing gasket and the second sealing gasket can be extended. By providing a high-temperature resistant layer, the high-temperature resistance of the first sealing gasket and the second sealing gasket can be effectively improved. By providing a bonding layer, the sealing performance of the first sealing gasket and the second sealing gasket can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the external structure of the present invention;

[0014] Figure 3 It is a schematic diagram of the composition structure of the second sealing gasket of the present invention.

[0015] In the figure: 1, sealing plate; 2, first through groove; 3, bolt; 4, first groove; 5, first sealing gasket; 6, first rubber injection hose; 7, second through groove; 8, second groove; 9, second sealing gasket; 901, wear-resistant layer; 902, high temperature resistant layer; 903, bonding layer; 10, second rubber injection hose. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The components of the present invention are all universal standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0018] See also Figure 1-3 A liquid silicone sealing structure for an automobile ignition coil comprises a sealing plate 1, first through grooves 2 are provided on both sides of the sealing plate 1, bolts 3 are threadedly connected to the inner cavity of the first through groove 2, first grooves 4 are provided on both sides of the bottom of the first through groove 2 and located at the bottom of the sealing plate 1, a first sealing gasket 5 is provided in the inner cavity of the first groove 4, a through hole matching the bolt 3 is provided on the surface of the first sealing gasket 5, a through hole matching the second through groove 7 is provided on the surface of the second sealing gasket 9, and the ignition coil can be better installed on the automobile by providing the through holes, and the top of one side of the first through groove 2 is provided with a through hole matching the bolt 3, and the second through groove 7 is provided with a through hole matching the second through groove 7. The sealing plate 1 is connected with a first injection pipe 6, a second through groove 7 is provided at the axis of the sealing plate 1, and second grooves 8 are provided on both sides of the bottom of the second through groove 7 and at the bottom of the sealing plate 1. The inner cavity of the second groove 8 is provided with a second sealing gasket 9, and the second sealing gasket 9 includes a wear-resistant layer 901, a high-temperature resistant layer 902 is adhered to the top of the wear-resistant layer 901, and a bonding layer 903 is adhered to the top of the high-temperature resistant layer 902. The material of the wear-resistant layer 901 is wear-resistant rubber, the material of the high-temperature resistant layer 902 is ceramic fiber, and the material of the bonding layer 903 is self-adhesive silicone rubber. The material of the first sealing gasket 5 is the same as that of the second sealing gasket 5. The material of the gasket 9 is the same. By setting the wear-resistant layer 901, the wear resistance of the first gasket 5 and the second gasket 9 can be effectively improved, and the service life of the first gasket 5 and the second gasket 9 can be extended. By setting the high temperature resistant layer 902, the high temperature resistance of the first gasket 5 and the second gasket 9 can be effectively improved. By setting the bonding layer 903, the sealing performance of the first gasket 5 and the second gasket 9 can be effectively improved. The right side of the top of the second through groove 7 is connected with a second injection pipe 10, which is connected through the sealing plate 1, the first through groove 2, the bolt 3, the first groove 4, and the first The coordinated use of the sealing gasket 5, the first glue injection tube 6, the second through groove 7, the second groove 8, the second sealing gasket 9, the wear-resistant layer 901, the high temperature resistant layer 902, the bonding layer 903 and the second glue injection tube 10 can effectively improve the sealing effect when using liquid silicone as a sealing material, prevent external water stains and dust from entering the interior of the coil, and solve the problem that the outer shell of the existing ignition coil is fixed together by snap-fitting or bolts 3, and when using liquid silicone for sealing, due to the poor sealing effect of the sealing structure, water stains and dust can easily enter the interior of the coil, causing an impact on the automobile ignition system.

[0019] When in use, insert the protrusion of the first sealing gasket 5 into the inner cavity of the first groove 4, and insert the protrusion of the second sealing gasket 9 into the inner cavity of the second groove 8, then pass the bottom of the ignition coil through the sealing plate 1 and the second sealing gasket 9, connect the sealing plate 1 to the car through the bolts 3, and after fixed connection, inject liquid silicone into the first through groove 2 through the first injection hose 6, and inject liquid silicone into the second through groove 7 through the second injection hose 10, and wait for the liquid silicone to solidify.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid silicone sealing structure for an automobile ignition coil, comprising a sealing plate (1), characterized in that: The sealing plate (1) is provided with a first through groove (2) on both sides, the inner cavity of the first through groove (2) is threadedly connected with a bolt (3), the first through groove (2) is provided with a first groove (4) on both sides of the bottom of the first through groove (2) and located at the bottom of the sealing plate (1), the inner cavity of the first groove (4) is provided with a first sealing gasket (5), the top of one side of the first through groove (2) is connected with a first injection tube (6), the sealing plate (1) is provided with a second through groove (7) at the axis, and the second groove (7) is provided with a second groove on both sides of the bottom of the second through groove (7) and located at the bottom of the sealing plate (1). A second groove (8) is provided in the inner cavity of the second groove (8), a second sealing gasket (9) is connected to the right side of the top of the second through groove (7) with a second glue injection tube (10), a through hole matching the bolt (3) is provided on the surface of the first sealing gasket (5), a through hole matching the second through groove (7) is provided on the surface of the second sealing gasket (9), the second sealing gasket (9) comprises a wear-resistant layer (901), a high-temperature resistant layer (902) is adhered to the top of the wear-resistant layer (901), and a bonding layer (903) is adhered to the top of the high-temperature resistant layer (902).

2. The liquid silicone sealing structure of an automobile ignition coil according to claim 1, characterized in that: The material of the wear-resistant layer (901) is wear-resistant rubber, and the material of the high-temperature resistant layer (902) is ceramic fiber.

3. The liquid silicone sealing structure of an automobile ignition coil according to claim 1, characterized in that: The material of the bonding layer (903) is self-adhesive silicone rubber, and the material of the first sealing gasket (5) is the same as that of the second sealing gasket (9).

Images