KR-102961943-B1 - A portable multi-runner generator using various eco-friendly energy sources

Abstract

The present invention relates to a portable multi-runner generator utilizing various eco-friendly energy sources, comprising a cylindrical stator assembly and rotor assembly having a hollow space, and a runner module having a wing that slides and is detachably attached to the inner surface of the assembly. The configuration includes: a stator assembly (10) formed in a cylindrical shape having a hollow space and having a stator (11); a rotor assembly (20) configured such that its outer surface faces the inner surface of the stator assembly (10), and is formed in a cylindrical shape having a hollow space and has a rotor (21); and at least two first runner modules (30) that slide and are detachably attached to the hollow portion of the rotor assembly (20), each having a cylindrical shape having a hollow space and a first wing (31) in the central portion of its inner surface. With the generator described above, by configuring the generator body into a cylindrical shape and allowing a runner module to be detachably attached to the inner surface, the runner module can be selectively configured according to the power generation environment to maximize the amount of power generated and its efficiency.

Inventors

• 정민서
• 김일환
• 문혜영
• 변귀섭

Dates

Publication Date

20260508

Application Date

20251127

Claims (7)

1. In a portable multi-runner generator utilizing various eco-friendly energy sources, A stator assembly (10) formed in a cylindrical shape having a hollow structure and equipped with a stator (11); A rotor assembly (20) configured such that its outer surface faces the inner surface of the stator assembly (10), and is formed in a cylindrical shape having a hollow and equipped with a rotor (21); and, A portable multi-runner generator utilizing various eco-friendly energy sources, characterized by including at least two first runner modules (30) that slide and detachably attach to the hollow portion of the rotor assembly (20), each first runner module (30) formed in a cylindrical shape having a hollow portion and having a first wing (31) in the central portion of the inner circumference.
2. In paragraph 1, The stator assembly (10) has an outer case (12) on the outer surface side of the stator (11), and the rotor assembly (20) has an inner case (22) on the inner surface side of the rotor (21). At least two guide grooves (23) are formed in the inner case (22) in the axial direction on its inner circumference, and A portable multi-runner generator utilizing various eco-friendly energy sources, characterized in that a slider (32) is formed vertically on the outer surface of the first runner module (30) and is formed to be coupled to the guide groove (23) of the inner case (22).
3. In paragraph 2, A cover (40) is provided at the top and bottom of the stator assembly (10) and the rotor assembly (20), respectively, and each cover (40) covers and seals from the end of the outer case (12) to the end of the inner case (12). A stopper (41) is provided on the axial outer surface of the cover (40), and is configured to slide forward and backward along a straight line connecting the center of the circle of the cover (40) to the guide groove (23), so as to be able to cover or open the guide groove (23). A portable multi-runner generator utilizing various eco-friendly energy sources, characterized in that a fixing groove (33) is formed on the upper and lower sides of the slider (32) of the first runner module (30), and the stopper (41) is configured to be pushed and fitted into the fixing groove (33).
4. In paragraph 3, A portable multi-runner generator utilizing various eco-friendly energy sources, characterized in that the first runner module (30) is formed such that its height is about 3 to 10% higher than 1/3 of the height of the rotor assembly (20).
5. In paragraph 3, The generator further includes at least two second runner modules (130), A portable multi-runner generator utilizing various eco-friendly energy sources, characterized in that the second runner module (130) has the same structure as the first runner module (30), but further comprises an extension part (134) in which the upper portion extends further upward, and instead of the first wing (31), has a second wing (131) mounted on the outer surface of the extension part (134).
6. In paragraph 5, A portable multi-runner generator utilizing various eco-friendly energy sources, characterized in that the second wing (131) is formed to be longer than the first wing (31).
7. In paragraph 2, A power terminal (13) is formed on the upper side of the outer surface of the outer case (12) of the stator assembly (10), and A portable multi-runner generator utilizing various eco-friendly energy sources, characterized in that the generator further includes a rechargeable battery (50) that is detachably attached to the power terminal (13).

Description

A portable multi-runner generator using various eco-friendly energy sources The present invention relates to a portable multi-runner generator utilizing various eco-friendly energy sources, comprising a hollow cylindrical stator assembly and rotor assembly, and a runner module that slides and detachably attaches to the inner circumference of the assembly and is equipped with wings. In addition, the present invention relates to a portable multi-runner generator utilizing various eco-friendly energy sources, comprising a runner module formed in a cylindrical shape with wings provided on the inner surface to generate power underwater, and a runner module provided with wings on the outer surface to generate power in the air, wherein both are configured to be selectively used. As the movement to enjoy nature grows in a changing society and camping and outdoor activities become more active, so do the inconveniences encountered. Among these, difficulties with electricity usage are particularly common. Specifically, there are restrictions on charging mobile phones or using lights while camping. To this end, solar chargers or small generators have conventionally been used. However, solar chargers are subject to significant limitations regarding weather and time, while generators are becoming less practical due to issues with noise and bulk. Therefore, there is a growing need for the development of portable generators that utilize flowing water or wind. In other words, there is a need for portable power supply devices that individuals can carry and use during camping, outdoor activities, or emergencies. Devices capable of reliably generating electricity even in natural environments could practically solve the power issues associated with outdoor activities. In order to solve these problems, technologies for portable hydroelectric generators are being proposed [Patent Document 1]. However, the hydroelectric generator of the prior art mentioned above has the problem that it is inconvenient to carry because its structure is complex. In addition, as shown in FIG. 10, a technology for a cylindrical small hydroelectric generator is presented [Patent Document 2]. As shown in FIG. 10, a rotor (2) composed of permanent magnets and a stator (1) composed of coils are both configured as cylindrical shapes having a hollow, and blades (3) are formed within the hollow. However, the above prior art consists of only one runner module of the blade (3). Therefore, there is a problem with low power generation. To increase power generation, the size of the blade (3) must be increased, which means there is a problem of increasing the diameter of the stator (1) and the rotor (2). Meanwhile, power generation can be increased by expanding the number of blades or runners (or turbines) and installing multiple runners in series. In other words, by installing multiple runners (turbines) in series, power generation efficiency can be improved by recovering the kinetic energy of water—which a single turbine alone could not fully recover—in stages through the multiple turbines. Particularly in areas with weak water flow, a significant overall amount of power can be obtained even if each individual turbine recovers only a small amount of energy. However, since each turbine creates resistance to the water flow and causes pressure loss within the pipe, the flow velocity decreases rapidly; consequently, installing more than a certain number of turbines may actually lead to reduced efficiency or negligible power generation. In particular, high-speed fluids can experience greater pressure loss because each turbine acts as a resistance to the flow. Therefore, in areas with rapid flow, it is important to maintain a sufficient distance so that the turbulence or wake generated by the rotating turbine does not affect the efficiency of the next turbine. FIG. 1 is a cross-sectional view of a multi-runner generator in a separated state according to a first embodiment of the present invention. FIG. 2 is a perspective view of a separated state of a multi-runner generator according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view of the combined state of a multi-runner generator according to the first embodiment of the present invention. FIG. 4 is a perspective view of the combined state of a multi-runner generator according to the first embodiment of the present invention. FIG. 5 is an exemplary diagram of a combined state according to the number of runner modules of a multi-runner generator according to a first embodiment of the present invention, showing (a) 3 and (b) 2 cases. FIG. 6 is a perspective view of a second type runner module according to a second embodiment of the present invention. FIG. 7 is an exemplary diagram of a multi-runner generator with a second type runner module inserted according to a second embodiment of the present invention. FIG. 8 is an exemplary diagram of a rechargeable battery attached to a multi-runne