A spark cap specifically for powered surfboards

Abstract

This utility model relates to the technical field of core components of a power surfboard ignition system, specifically disclosing a spark cap for power surfboards. The spark cap body has a first channel for connecting a high-voltage wire and a second channel for connecting a spark plug at both ends. The first and second channels are connected, and a high-voltage conductive assembly is installed at the connection point. The ends of the first and second channels are respectively provided with a first waterproof inclined surface and a second waterproof inclined surface. The interiors of the first and second channels are respectively provided with a first collection groove and a second collection groove for waterproofing. It also includes a retaining spring for enhancing the connection stability of the spark plug. This device solves the problems of traditional power surfboard spark caps lacking connection stability with the spark plug and having poor waterproofing.

Description

Technical Field

[0001] This application relates to the technical field of core components of a powered surfboard ignition system, and specifically discloses a spark cap for powered surfboards. Background Technology

[0002] In current technical solutions, the key components connecting the spark cap and spark plug on a power surfboard are generally manufactured using a stainless steel sheet bending process. However, this type of bent component has significant technological and structural defects: firstly, due to limitations in bending process precision, the inner hole dimensions of the component after forming are poor, making it difficult to achieve a highly compatible assembly with the spark plug; secondly, this mating component is open, while the power surfboard is constantly in dynamic shaking conditions during actual use. After long-term operation, the open structure of the mating component is prone to plastic deformation, and even the inner hole may expand, leading to a continuous increase in the clearance between it and the spark plug. This directly affects the assembly stability of the ignition system and may cause abnormal ignition signal transmission.

[0003] Meanwhile, the current design of spark plug caps has significant shortcomings in waterproofing: Firstly, all end faces of the spark plug cap are flat. When these flat end faces are assembled with the spark plug and high-voltage wire, the mating parts naturally form right angles. Due to the surface tension of water droplets, these right angle positions become "hotspots" for water accumulation. Water not only tends to linger here for a long time, but also gradually seeps into the interior of the spark plug cap along the mating surfaces. Secondly, the mating surfaces of the spark plug cap with the spark plug and high-voltage wire also have flat structures. These flat mating surfaces lack effective waterproofing barriers. Once water (such as seawater splashed during surfing or rainwater in the environment) comes into contact with the mating surfaces, the water can directly penetrate the mating gaps and seep into the core area inside the spark plug cap, coming into contact with critical conductive components such as the self-damping resistor and the conductive cap.

[0004] The aforementioned water accumulation and seepage issues can easily trigger internal discharge and leakage faults in the spark cap, leading to ignition system failure. This can range from unstable power output on the surfboard to complete ignition interruption, affecting normal equipment operation. Furthermore, long-term moisture erosion accelerates the aging and damage of internal components, shortening the spark cap's lifespan and significantly reducing the reliability and safety of the surfboard. In summary, the inherent defects in the molding process of mating components and the design of the end face and mating surface of current spark caps for surfboards have become key technical bottlenecks restricting their waterproof performance, assembly stability, and ignition reliability, urgently requiring solutions through structural optimization.

[0005] In view of this, the present invention provides a spark cap specifically for power surfboards to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve the problems of traditional spark caps for power surfboards lacking connection stability with spark plugs and having poor waterproofing.

[0007] To achieve the above objectives, this utility model provides the following basic solution: A spark cap for power surfboards includes a spark cap body. The spark cap body has a first channel for connecting a high-voltage wire and a second channel for connecting a spark plug at both ends. The first channel and the second channel are connected and a high-voltage conductive assembly is installed at the connection position. The ends of the first channel and the second channel are respectively provided with a first waterproof inclined surface and a second waterproof inclined surface; The interior of the first channel and the second channel are respectively provided with several first collection tanks and second collection tanks for waterproofing; It also includes retaining clips to enhance the stability of the spark plug connection.

[0008] Furthermore, the spark cap body is covered with an insulating silicone sleeve.

[0009] Furthermore, the high-voltage conductive assembly includes a plastic-encapsulated body, a conductive cap, a damping resistor, and an automatic screw. The automatic screw and the conductive cap are located in the first channel and the second channel, respectively. The plastic-encapsulated body encapsulates the conductive cap, the damping resistor, and the automatic screw. One end of the damping resistor is connected to the automatic screw, and the other end of the damping resistor is connected to the conductive cap.

[0010] Furthermore, a notch is provided on one side of the conductive cap located in the second channel, and the retaining spring is fixed to the outside of the conductive cap. Several recesses are provided on the retaining spring, and all the recesses are located inside the notch.

[0011] Furthermore, the number of the indentations is one, and the distance between the most concave point of the indentation and the center line of the conductive cap is less than the radius of the conductive cap.

[0012] Furthermore, the retaining spring is made of stainless steel.

[0013] Furthermore, both the first and second collection grooves are concave collection grooves, and the first and second collection grooves are perpendicular to the center lines of the first and second channels, respectively.

[0014] Furthermore, the number of the first collection tank and the second collection tank is at least three.

[0015] The principle and effect of this solution are as follows: 1. Compared with the existing technology, this device further improves the connection stability with the spark plug. This device is equipped with a retaining spring. A retaining spring is installed on the outside of the conductive cap. The retaining spring has a concave point, which is used to lock the end of the spark plug, thereby achieving the effect of locking the spark plug and preventing it from falling out.

[0016] 2. Compared with existing technologies, this device has a simple structure and ingenious design. This device further improves the waterproof effect. The end faces of the first and second channels are respectively provided with a first waterproof inclined surface and a second waterproof inclined surface. In the current stage, the mating surfaces of the spark cap, spark plug, and high-voltage wire are all flat. If water enters, it will directly penetrate into the innermost part of the spark cap body, causing discharge and leakage. This device replaces the end faces of the first and second channels with "inclined surfaces". After the inclined spark cap body is assembled with the spark plug and high-voltage wire, it will form an acute angle. The acute angle is not conducive to water droplet adhesion, and the water droplets can easily flow away and cannot accumulate.

[0017] 3. Compared with the existing technology, this device has a simple structure and ingenious design. This device further improves the waterproof effect. The device is equipped with several first collection tanks and second collection tanks for waterproofing inside the first channel and the second channel, respectively. When water seeps in, it first accumulates in the front collection tank and then enters the rear collection tank after it is full. This design greatly improves the water inlet volume and water inlet time when the spark cap body and spark plug are connected in a planar manner. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This illustration shows an assembly diagram of a spark cap for a power surfboard according to an embodiment of this application; Figure 2 A schematic diagram of the structure of a spark cap for power surfboards according to an embodiment of this application is shown. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] The reference numerals in the accompanying drawings include: 1. Insulating silicone jacket; 2. Plastic-encapsulated body; 3. First collection groove; 4. First channel; 5. First waterproof inclined surface; 6. Conductive cap; 7. Spring clip; 8. Damping resistor; 9. Second channel; 10. Second collection groove; 11. Second waterproof inclined surface; 12. High voltage wire; 13. Spark plug; 14. Self-tapping screw.

[0022] Implementation, for example Figure 1 and Figure 2 As shown: A spark cap specifically for power surfboards includes a spark cap body, which is L-shaped. The spark cap body is covered with an insulating silicone sleeve 1. The insulating silicone sleeve 1 has excellent electrical insulation properties, effectively isolating the high-voltage electricity transmitted by the high-voltage line 12, preventing current leakage and electric shock; it also prevents birds, animals, and foreign objects from contacting conductive parts, eliminating the risk of short circuits and ensuring the electrical safety of the ignition system. Figure 1 As shown, the spark cap body has a first channel 4 for connecting the high-voltage wire 12 and a second channel 9 for connecting the spark plug 13 at both ends. The first channel 4 and the second channel 9 are connected and a high-voltage conductive assembly is installed at the connection position.

[0023] The high-voltage conductive assembly includes a plastic-encapsulated body 2, a conductive cap 6, a damping resistor 8, and an automatic screw. The automatic screw and the conductive cap 6 are located in the first channel 4 and the second channel 9, respectively. The plastic-encapsulated body 2 encapsulates the conductive cap 6, the damping resistor 8, and the automatic screw. The left end of the damping resistor 8 is connected to the automatic screw, and the right end of the damping resistor 8 is connected to the conductive cap 6.

[0024] The encapsulated body 2 is made of polymer materials such as epoxy resin through molding or injection molding processes. It plays a key protective role for the core components inside the spark cap body, such as the damping resistor 8 and the conductive cap 6. By encapsulating the damping resistor 8, the conductive cap 6 and other components into an integrated structure, the encapsulated body 2 resists the mechanical impact or vibration of the surfboard during operation, such as bumps or water flow impact, preventing the internal components from shifting or being damaged, and ensuring assembly stability. In addition, the encapsulated body 2 is made with silica thermally conductive filler, which can help dissipate heat from the damping resistor 8 and other heat-generating components, avoid local overheating that could lead to performance degradation, and further ensure the stability of continuous operation.

[0025] The high-voltage wire 12 is inserted into the first channel 4 and contacts the automatic screw. The high-voltage wire 12 is fixed through the inner wall of the first channel 4. The spark plug 13 is inserted into the first channel 4 and contacts the conductive cap 6. In order to improve the connection stability of the spark plug 13, this structure is provided with a retaining spring 7.

[0026] Specifically, it also includes a retaining spring 7 for enhancing the connection stability of spark plug 13. The retaining spring 7 is made of stainless steel by stamping, such as... Figure 2As shown, the conductive cap 6 located in the second channel 9 has a notch on its outer side. The retaining spring 7 is fixed to the outside of the conductive cap 6. The retaining spring 7 is provided with several dimples, all of which are located inside the notch. Specifically, there is one dimple, and the distance between the position of the most concave point of the dimple and the center line of the conductive cap 6 is less than the radius of the conductive cap 6.

[0027] When the spark plug 13 is inserted into the second channel 9 and comes into contact with the conductive cap 6, the end of the spark plug 13 is locked by the concave point, thereby achieving the effect of locking the spark plug 13 and preventing it from falling out.

[0028] At present, the end faces of the spark cap, namely the end faces of the first channel 4 and the second channel 9, are all flat. After the flat surface is mated with the spark plug 13 and the high voltage wire 12, it forms a right angle. Due to the surface tension of water droplets, the right angle position is an area where water is extremely easy to accumulate. It is easier for water to flow into the interior along the mating surface and come into contact with the plastic encapsulation body 2, the conductive cap 6, the damping resistor 8 and the automatic screw, ultimately leading to discharge or leakage.

[0029] Therefore, as Figure 1 and Figure 2 As shown, the ends of the first channel 4 and the second channel 9 are respectively provided with a first waterproof inclined surface 5 and a second waterproof inclined surface 11. The end faces of the first channel 4 and the second channel 9 are changed from "flat surfaces" to "inclined surfaces". After being assembled with the spark plug 13 and the high-voltage wire 12, they form an acute angle surface. The acute angle surface is not conducive to water droplet adhesion. Water droplets can easily flow away and cannot accumulate. This is because a flat surface can provide a more continuous distribution of polar groups, making the hydrogen bonding between water molecules and the solid surface more complete and extensive, thus enhancing the adhesion effect. The "sharp" structure of the acute angle surface will destroy this continuous molecular interaction interface. At the same time, the geometric abrupt change at the acute angle will affect the hydrogen bond formation efficiency between water molecules and solid molecules, thereby reducing the adhesion between water droplets and the surface and making adhesion difficult.

[0030] The interiors of the first channel 4 and the second channel 9 are respectively provided with a number of first collection tanks 3 and second collection tanks 10 for waterproofing.

[0031] Specifically: there are at least three first collection grooves 3 and two collection grooves 10. Both the first collection groove 3 and the second collection groove 10 are concave collection grooves. The first collection groove 3 and the second collection groove 10 are perpendicular to the center lines of the first channel 4 and the second channel 9, respectively.

[0032] When this device is combined with the first channel 4 and the second channel 9 of the high-voltage line 12 and the spark plug 13, three concave collection grooves are added. When water seeps in, it first accumulates in the first collection groove, and only after it is full will it enter the second collection groove, and so on. This design greatly improves the water intake volume and water intake time of the traditional planar method.

[0033] Specific implementation process: The first step is to install the spark plug 13: When the spark plug 13 is inserted into the first channel 4 and comes into contact with the conductive cap 6, the end of the spark plug 13 is locked by the concave point, thereby achieving the effect of locking the spark plug 13 and preventing it from falling off.

[0034] The second step is to install the high-voltage wire 12: the high-voltage wire 12 is inserted into the first hole 4 and contacts the self-tapping screw 14, and is fixed through the inner wall of the first hole 4.

[0035] The third step involves high-voltage electricity from the power surfboard's ignition system. This high-voltage electricity first flows through the self-tapping screw 14 and then through the damping resistor 8. After being regulated by the damping resistor 8, the high-voltage electricity is transmitted to the conductive cap 6. The conductive cap 6 then transmits the high-voltage electricity to the retaining spring 7. The retaining spring 7 precisely engages with the spark plug 13. Upon receiving the high-voltage electricity, the spark plug 13 breaks down the air in its electrode gap, generating a strong electric spark that ignites the combustible mixture in the power surfboard engine cylinder. The combustion and expansion of the mixture do work, driving the engine to run and ultimately providing forward power for the power surfboard.

[0036] This device solves the problems of poor connection stability and waterproofing in traditional spark caps for power surfboards, which lack connection stability with spark plug 13.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A spark cap specifically for powered surfboards, characterized in that, The spark cap body includes a spark cap body with a first channel for connecting a high-voltage line and a second channel for connecting a spark plug at both ends. The first channel and the second channel are connected and a high-voltage conductive assembly is installed at the connection position. The ends of the first channel and the second channel are respectively provided with a first waterproof inclined surface and a second waterproof inclined surface; The interior of the first channel and the second channel are respectively provided with several first collection tanks and second collection tanks for waterproofing; It also includes retaining clips to enhance the stability of the spark plug connection.

2. The spark cap for power surfboards according to claim 1, characterized in that, The spark cap body is covered with an insulating silicone jacket.

3. A spark cap for power surfboards according to claim 2, characterized in that, The high-voltage conductive assembly includes a plastic-encapsulated body, a conductive cap, a damping resistor, and an automatic screw. The automatic screw and the conductive cap are located in the first channel and the second channel, respectively. The plastic-encapsulated body encapsulates the conductive cap, the damping resistor, and the automatic screw. One end of the damping resistor is connected to the automatic screw, and the other end of the damping resistor is connected to the conductive cap.

4. A spark cap for power surfboards according to claim 3, characterized in that, A notch is provided on one side of the conductive cap located in the second channel. The retaining spring is fixed to the outside of the conductive cap. Several indentations are provided on the retaining spring, and all the indentations are located inside the notch.

5. A spark cap for power surfboards according to claim 4, characterized in that, The number of the indentations is one, and the distance between the most concave point of the indentation and the center line of the conductive cap is less than the radius of the conductive cap.

6. A spark cap for power surfboards according to claim 5, characterized in that, The retaining ring is made of stainless steel.

7. A spark cap for power surfboards according to claim 5, characterized in that, Both the first and second collection grooves are concave collection grooves, and the first and second collection grooves are perpendicular to the center lines of the first and second channels, respectively.

8. A spark cap for power surfboards according to claim 1 or 7, characterized in that, The number of the first collection tank and the second collection tank is at least three.

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