A surfboard jet pump structure with rapid heat dissipation effect

Abstract

A surfboard jet pump structure with rapid heat dissipation is disclosed, relating to the field of surfboard technology. The structure includes a mounting groove on the surfboard's bottom plate, within which the jet pump structure comprises: a power source fixedly mounted within the mounting groove on the side away from the tail of the surfboard; a propeller assembly fixedly mounted within the mounting groove and fitted with the power output shaft of the power source, used to propel water flow towards the side opposite to the surfboard's direction of travel; and a main channel bottom cover plate located at the opening of the mounting groove and fixedly fitted with the groove, used to shield and protect the power source. During surfboard movement, the main channel bottom cover plate also facilitates water exchange between the cavity containing the power source and external water flow to cool the power source. The surfboard jet pump structure employing the above technical solution has the advantages of simple structure, ingenious design, good heat dissipation, and long service life.

Description

Technical Field

[0001] This invention relates to the field of surfboard technology, and more specifically to a surfboard jet pump structure with rapid heat dissipation. Background Technology

[0002] Surfing is a popular sport due to its thrilling nature and effective exercise. Ordinary surfboards require the propulsion of waves to function; in calm or low-lying conditions, they become useless. To enable surfing even in calm or low-lying waters, powered surfboards already exist in the market.

[0003] Existing powered surfboards generally include a hull, a jet pump structure, etc. The jet pump structure usually uses an electric motor to drive the propeller to rotate, thereby driving the water flow backward, so that the surfboard can use the water's thrust to provide the power for surfing. As the core power component, the jet pump structure is usually installed at the bottom of the stern.

[0004] The power source of the existing spray pump structure generates a lot of heat when it is working. However, most of the power sources of the existing spray pump structure are isolated from water, which makes it difficult for the heat generated by the power source to dissipate quickly, thus affecting the service life of the power source. Therefore, it needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a surfboard jet pump structure with rapid heat dissipation, which has the advantages of simple structure, ingenious design, good heat dissipation, and long service life.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a surfboard jet pump structure with rapid heat dissipation effect, wherein a mounting groove is provided on the bottom plate of the surfboard, the jet pump structure is disposed in the mounting groove, and the jet pump structure includes: a power source fixedly installed in the mounting groove on the side away from the tail of the surfboard; a propeller assembly fixedly installed in the mounting groove and fixedly assembled with the power output shaft of the power source for propelling water flow to the side opposite to the direction of travel of the surfboard; and a main channel bottom cover plate disposed at the opening of the mounting groove and fixedly assembled with the mounting groove for shielding and protecting the power source. When the surfboard is moving, the main channel bottom cover plate is also used to realize the exchange of water flow between the cavity where the power source is located and the external water flow to cool the power source.

[0007] Furthermore, a mounting platform is provided protruding from the mounting groove, and a mounting part corresponding to the mounting platform is provided on the bottom cover plate of the main channel. The mounting part, the mounting platform, the bottom cover plate of the main channel, and the mounting groove surround and form a mounting cavity for assembling the power source.

[0008] Furthermore, the main channel bottom cover plate is provided with a water inlet and a water outlet, both of which are connected to the mounting cavity.

[0009] Furthermore, the water inlet is shaped like a shark's mouth to ensure the speed and total amount of water flowing into the mounting cavity when the surfboard is running.

[0010] Furthermore, a ramp is provided on the bottom cover plate of the main channel. The ramp is located on one side of the mounting part and connected to the mounting part. The ramp extends towards the mounting cavity, and the outlet is provided on the ramp.

[0011] Furthermore, the main channel bottom cover plate includes: a fixed A plate and a fixed B plate; the fixed A plate is assembled with the side of the mounting groove away from the propeller assembly, and the fixed A plate is used to combine with the mounting platform and the mounting groove to form the mounting cavity; the fixed B plate is assembled with the side of the mounting groove near the propeller assembly.

[0012] Furthermore, the main channel cover is a single piece of plate and is fixedly assembled with the groove of the mounting slot by fastening screws.

[0013] Furthermore, the main channel bottom cover plate is provided with a water inlet, and the propeller assembly includes: a duct fixedly installed on the mounting groove away from the power source side for discharging water entering from the water inlet into the mounting groove; a drive shaft fixedly assembled with the power output shaft of the power source and extending to one side of the duct; an intermediate support member sleeved on the drive shaft and fixedly installed on the mounting platform for supporting the middle section of the drive shaft; and a propeller fixedly installed on the fixed drive shaft and located in the duct, which accelerates and propels the water entering the duct under the drive of the drive shaft to be ejected from the duct outlet.

[0014] Furthermore, the inlet is provided with a sloping surface extending toward the side away from the culvert, the sloping surface being used to increase the water intake of the inlet.

[0015] Furthermore, the duct is fixedly installed on the side wall of the mounting groove by fastening screws. The duct is cup-shaped as a whole, and the radial dimension at the inlet of the duct is larger than the radial dimension at the outlet.

[0016] After adopting the above technical solution, the beneficial effects of this invention are as follows: When the spray pump structure is in use, the power source drives the drive shaft to rotate, causing the propeller to rotate rapidly inside the duct, thereby accelerating the water in the duct and forming a jet at the duct outlet. The reverse thrust generated by the water jet propels the surfboard forward. As the surfboard moves forward, the shark-mouth-shaped inlet on the main channel bottom cover increases the water intake during operation. Simultaneously, an outlet is also provided on the main channel bottom cover. The shark-mouth-shaped inlet increases the water intake within the mounting cavity, increasing the water outlet velocity. During high-speed surfboard operation, the more heat generated by the power source, and the faster the speed, the more the water intake and velocity at the inlet and outlet are increased. This directly enhances the exchange between the water inside and outside the mounting cavity, continuously improving the heat dissipation effect of the mounting cavity and ensuring the working environment and service life of the power source. In addition, a ramp is installed at the inlet, increasing the amount of water entering the culvert. Furthermore, water discharged from the outlet directly enters the culvert from the inlet, further increasing the water volume. This results in greater propulsion from the propeller as it ejects water from the culvert, ensuring the surfboard's forward speed. This pump-jet structure not only improves heat dissipation during operation but also increases the water volume in the culvert, thereby enhancing propulsion. It boasts advantages such as simple structure, ingenious design, excellent heat dissipation, and long service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0019] Figure 2 This is a schematic diagram of the structure after removing the bottom cover plate of the main channel in Example 1;

[0020] Figure 3 This is a schematic diagram of the surfboard's board structure in Example 1;

[0021] Figure 4 This is a schematic diagram of the structure of the main channel bottom cover, power source and propeller assembly in Example 1;

[0022] Figure 5 This is a schematic diagram of the structure of the main channel bottom cover plate in Example 1;

[0023] Figure 6 This is a schematic diagram of the structure of the main channel bottom cover plate in Example 2.

[0024] Explanation of reference numerals in the attached drawings: 100, base plate; 101, mounting groove; 110, mounting platform; 200, power source; 300, main channel bottom cover plate; 301, water inlet; 302, water outlet; 303, water inlet; 310, mounting section; 320, ramp platform; 330, ramp surface; 340, fixed A plate; 350, fixed B plate; 400, propeller assembly; 410, duct; 420, drive shaft; 430, intermediate support; 440, propeller; 500, mounting cavity. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0027] Example 1:

[0028] This embodiment relates to a surfboard jet pump structure with rapid heat dissipation effect, such as... Figure 1-5 As shown, the surfboard has a mounting groove 101 on its base plate 100, and a jet pump structure is disposed in the mounting groove 101. The jet pump structure includes a power source 200, a propeller assembly 400, and a main channel bottom cover plate 300.

[0029] Specifically, such as Figure 1-5 As shown, the power source 200 is fixedly installed in the mounting slot 101 on the side away from the tail of the surfboard. The power source 200 drives the propeller assembly 400 to move, thereby propelling the surfboard. The propeller assembly 400 is fixedly installed in the mounting slot 101 and is fixedly assembled with the power output shaft of the power source 200. The propeller assembly 400 propels the water flow to the side opposite to the surfboard's direction of travel, thereby propelling the surfboard through counter-thrust. The main channel bottom cover 300 is disposed at the opening of the mounting slot 101 and is fixedly assembled with the mounting slot 101. The main channel bottom cover 300 is used to shield, fix, and protect the power source 200. When the surfboard is in motion, the main channel bottom cover 300 also serves to allow the cavity containing the power source 200 to exchange with the external water flow, thereby cooling the power source 200.

[0030] It should be noted that the power source 200 is an electric motor. A mounting platform 110 protrudes from the mounting groove 101, and the electric motor is mounted on the left side of the mounting platform 110. A mounting part 310 corresponding to the mounting platform 110 is provided on the main channel bottom cover plate 300. After the main channel bottom cover plate 300 is assembled with the plate body, the mounting part 310, the mounting platform 110, the main channel bottom cover plate 300, and the mounting groove 101 form a mounting cavity 500 (i.e., the cavity mentioned above) for assembling the power source 200.

[0031] Furthermore, such as Figure 1-5 As shown, the main channel bottom cover 300 is equipped with an inlet 301 and an outlet 302, both of which are connected to the mounting cavity 500. When the surfboard is in motion, the surfboard has a speed relative to the water, allowing water to flow into the mounting cavity 500 through the inlet 301 and out through the outlet 302. The water in the mounting cavity 500 directly contacts the motor housing, achieving water cooling and ensuring effective heat dissipation for the motor. Furthermore, the water entering the mounting cavity 500 carries heat and is quickly discharged through the outlet 302, effectively preventing seawater from crystallizing inside the mounting cavity 500 and causing the motor to seize up.

[0032] Preferred, such as Figure 1-5 As shown, the water inlet 301 is shaped like a shark's mouth to ensure the speed and total amount of water flowing into the mounting cavity 500 when the surfboard is running, further improving the exchange rate between the water inside the mounting cavity 500 and the external water.

[0033] Furthermore, such as Figure 1-5 As shown, a ramp 320 is provided on the main channel bottom cover plate 300. The ramp 320 is located on one side of the mounting part 310 and connected to the mounting part 310, and the ramp 320 extends towards the mounting cavity 500. An outlet 302 is provided on the ramp 320. This arrangement of the outlet 302, with its inlet end forming a waist-shaped groove on the ramp surface 330, not only increases the contact area between the water inside the mounting cavity 500 and the inlet end, but also allows the water to flow at an angle into the waist-shaped groove, ensuring the speed of water flow through the outlet 302. In this embodiment, two outlets 302 are provided and communicate with the inlet 303. The ramp 320 is integrally formed with the mounting part 310.

[0034] Preferably, the main channel cover is a single piece of plate and is fixedly assembled with the groove of the mounting groove 101 by fastening screws.

[0035] Furthermore, such as Figure 1-5 As shown, the main channel bottom cover plate 300 is provided with a water inlet 303, and the propeller assembly 400 includes: duct 410, drive shaft 420, intermediate support 430 and propeller 440.

[0036] Specifically, the duct 410 is fixedly installed on the mounting groove 101 on the side away from the power source 200. The duct 410 is used to discharge water entering from the inlet 303 into the mounting groove 101. The drive shaft 420 is fixedly assembled with the power output shaft of the power source 200 and extends towards the duct 410. The intermediate support 430 is sleeved on the drive shaft 420 and fixedly installed on the mounting platform 110. The intermediate support 430 is used to support the middle section of the drive shaft 420. The propeller 440 is fixedly installed on the fixed drive shaft 420 and located inside the duct 410. Driven by the drive shaft 420, the propeller 440 accelerates and propels the water entering the duct 410 to be ejected from the outlet of the duct 410.

[0037] Preferably, the inlet 303 is provided with a ramp 330 extending away from the culvert 410, the ramp 330 being used to increase the water intake of the inlet 303. The culvert 410 is fixedly installed on the side wall of the mounting groove 101 by fastening screws. The culvert 410 is cup-shaped in general, and the radial dimension at the inlet of the culvert 410 is larger than the radial dimension at the outlet.

[0038] It should be noted that the intermediate support 430 includes a housing and bearings disposed within the housing. To ensure the coaxiality of the drive shaft 420 during rotation, two overlapping bearings are disposed within the housing, with the outer ring of the bearings assembled to the housing and the inner ring of the bearings assembled to the drive shaft 420. The mounting section 310 and the mounting table 110 are provided with mounting notches for mounting the intermediate support 430.

[0039] The working principle of this embodiment is roughly as follows: When the spray pump structure is in use, the power source 200 drives the drive shaft 420 to rotate, causing the propeller 440 to rotate rapidly within the duct 410, thereby accelerating the water out of the duct 410 and forming a jet at the outlet of the duct 410. The reverse thrust generated by the water jet propels the surfboard forward. As the surfboard moves forward, the shark-mouth-shaped water inlet 301 on the main channel bottom cover 300 increases the water intake at the inlet 301 during operation. Meanwhile, an outlet 302 is also provided on the main channel bottom cover plate 300. With the shark mouth-shaped inlet 301, the water volume in the installation cavity 500 increases, which increases the water output speed of the outlet 302. During the high-speed operation of the surfboard, the more heat generated by the power source 200, and the faster the speed, the more the water volume and speed of the inlet 301 and the water output volume and speed of the outlet 302 are directly increased. This directly improves the exchange between the water in the installation cavity 500 and the external water, thereby continuously improving the heat dissipation effect of the installation cavity 500 and ensuring the working environment and service life of the power source 200. In addition, a ramp 330 is provided at the inlet 303, which increases the amount of water entering the duct 410 through the inlet 303. Furthermore, water discharged from the outlet 302 directly enters the duct 410 through the inlet 303, further increasing the water volume in the duct 410. This results in greater propulsion when the propeller 440 ejects water from the duct 410, ensuring the surfboard's forward speed. This pump structure not only improves heat dissipation during operation but also increases the water volume in the duct 410, thereby enhancing propulsion. It boasts advantages such as simple structure, ingenious design, good heat dissipation, and long service life.

[0040] Example 2:

[0041] The main difference between this embodiment and Embodiment 1 is that, as Figure 6 As shown, in this embodiment, the main channel bottom cover 300 includes a fixed A plate 340 and a fixed B plate 350. The fixed A plate 340 is assembled with the side of the mounting groove 101 away from the propeller assembly 400, and is used to form a mounting cavity 500 by combining with the mounting platform 110 and the mounting groove 101. The fixed B plate 350 is assembled with the side of the mounting groove 101 near the propeller assembly 400. Dividing the main channel bottom cover 300 into two parts for ball bearing assembly not only avoids the situation where the entire main channel bottom cover 300 needs to be replaced due to damage to either the fixed A plate 340 or the fixed B plate 350, but also facilitates the individual maintenance of the power source 200 and the propeller assembly.

[0042] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A surfboard jet pump structure having a rapid heat dissipation effect, wherein, The bottom plate (100) of the surfboard is provided with a mounting groove (101), and a jet pump structure is arranged in the mounting groove (101), characterized in that: a power source (200) is fixedly mounted in the mounting groove (101) away from the tail of the surfboard; a propeller assembly (400) is fixedly mounted in the mounting groove (101) and fixedly assembled with the power output shaft of the power source (200), and is used for pushing the water flow to the side opposite to the direction of the surfboard; and a main flow passage bottom cover plate (300) is arranged at the slot opening of the mounting groove (101) and fixedly assembled with the mounting groove (101), and is used for shielding and protecting the power source (200); when the surfboard moves, the main flow passage bottom cover plate (300) is also used for realizing the exchange between the cavity where the power source (200) is located and the external water flow to cool the power source (200). A mounting table (110) is arranged in the mounting groove (101), and a mounting portion (310) corresponding to the mounting table (110) is arranged on the main flow passage bottom cover plate (300), and the mounting portion (310), the mounting table (110), the main flow passage bottom cover plate (300) and the mounting groove (101) form an installation cavity (500) for assembling the power source (200). The main flow passage bottom cover plate (300) is provided with a water inlet (301) and a water outlet (302), and the water inlet (301) and the water outlet (302) are in communication with the installation cavity (500). The water inlet (301) is in the shape of a shark mouth to ensure the speed and total amount of water flow entering the installation cavity (500) when the surfboard runs. The main flow passage bottom cover plate (300) is provided with a slope table (320), the slope table (320) is located on one side of the mounting portion (310) and connected with the mounting portion (310), the slope table (320) extends to the side of the installation cavity (500), and the water outlet (302) is arranged on the slope table (320). The main flow passage bottom cover plate (300) is provided with a water inlet (303), and a slope surface (330) extending away from the duct (410) is arranged at the water inlet (303), and the slope surface (330) is used for increasing the water inlet amount of the water inlet (303). The water outlet (302) is in communication with the position close to the slope surface (330) of the water inlet (303).

2. The surfboard jet pump configuration with rapid heat dissipation effect of claim 1, wherein, The main flow passage bottom cover plate (300) comprises a fixed A plate (340) and a fixed B plate (350); the fixed A plate (340) is assembled on one side of the mounting groove (101) away from the propeller assembly (400), and is used for forming the installation cavity (500) in combination with the mounting table (110) and the mounting groove (101); and the fixed B plate (350) is assembled on one side of the mounting groove (101) close to the propeller assembly (400).

3. The surfboard jet pump configuration with rapid heat dissipation effects of claim 1, wherein, The main flow channel bottom cover plate (300) is an integral plate, and is fixedly assembled with the slot opening of the mounting slot (101) through fastening screws.

4. The surfboard jet pump configuration having a rapid heat dissipation effect according to claim 2 or 3, wherein, The propeller assembly (400) comprises: a duct (410) fixedly mounted on the mounting slot (101) away from the power source (200) and used for guiding water entering from the water inlet (303) out of the mounting slot (101); a driving shaft (420) fixedly assembled with the power output shaft of the power source (200) and extending to the side of the duct (410); an intermediate support (430) sleeved on the driving shaft (420) and fixedly mounted on the mounting table (110) and used for supporting the middle section of the driving shaft (420); and a propeller (440) fixedly mounted on the driving shaft (420) and located in the duct (410) and used for accelerating water entering the duct (410) to be propelled to be jetted out of the outlet of the duct (410) under the driving of the driving shaft (420).

5. The surfboard jet pump configuration with rapid heat dissipation effects of claim 4, wherein, The duct (410) is fixedly mounted on the side wall of the mounting slot (101) through fastening screws, the duct (410) is cup-shaped as a whole, and the radial dimension of the inlet of the duct (410) is greater than that of the outlet.

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