JP6188086B2 - Power generator - Google Patents

Description

   The present invention belongs to a technical field related to a power generation apparatus including a plurality of generators that are driven to rotate by a common drum and generate power.

   Recently, in consideration of power generation efficiency and the like, power generation apparatuses including a plurality of generators that are driven to rotate by a common rotating drum and generate power have been provided. On the other hand, with the diversification of installation locations and purposes of use of power generation devices, small and compact power generation devices have been required.

   Conventionally, as a power generator provided with the above-mentioned plurality of generators, for example, those described in Patent Documents 1 and 2 are known.

   In Patent Documents 1 and 2, as shown in FIG. 3, a single drum D that is rotated, and a plurality of roller-shaped relay members R that are driven to rotate in contact with the inner peripheral surface of the drum D, A rotating shaft S disposed from each relay member R toward the outside in the axial direction of the drum D, and a generator M connected to each rotating shaft S outside the drum D and generating electric power by rotational driving. A power generation device provided is described.

   The power generation devices according to Patent Documents 1 and 2 try to increase the power generation efficiency by selecting the number of power generators M to generate power by intermittently transmitting the rotation drive to each power generator M. It is useful for wind power generation where rotation is unstable.

JP 2010-516929 A JP-A-5-164037

   In the power generation apparatus according to Patent Documents 1 and 2, since the generator M is connected to the rotary shaft S extending from the drum D to the outside in the axial direction, the length L in the axial direction of the drum D is increased and the apparatus configuration is increased. However, there is a problem that the size becomes large.

   The present invention has been made in consideration of such problems, and an object of the present invention is to provide a small and compact power generation apparatus including a plurality of generators.

   In order to solve the above-described problems, the power generation apparatus according to the present invention employs means described in each of the claims.

That is, according to the first aspect, the base shaft, the single drum rotatably supported by the base shaft, and the roller-shaped outer casing is the rotor side, penetrates through the center of the casing and protrudes shortly to one side of the casing. The support shaft of the generator is the stator side and has a built-in electromagnetic induction structure to generate power by rotating the casing. The generator is fixed to the base shaft and faces the drum, and the support shaft of each generator is supported. The generator is built in the drum and is driven to rotate while the outer peripheral surface of the casing is in contact with the inner peripheral surface of the drum.

   In this means, the structure in which the generator is built in the drum can avoid an increase in the structure of the drum D in the axial direction.

Further, in claim 2, the power generating apparatus of claim 1, contacting the casing of the generator the generator is rotated relative to the inner peripheral surface of the drum, with the intermittent mechanism for releasing contact, support base to the base shaft The generator includes a fixed base and a movable base having one end rotatably supported by the fixed base, and the generator has a support shaft fixed to the other end of the movable base of the support base. .

   In this means, the number of generators to be generated can be selected by bringing the casing of the generator into contact with or releasing from the inner peripheral surface of the drum by the intermittent mechanism.

   According to a third aspect of the present invention, in the power generation apparatus according to the second aspect, the intermittent mechanism includes a spring that elastically biases the generator casing in a direction to release contact with the inner peripheral surface of the drum and a spring of the generator. And an actuator for moving the drum in the contact direction against the inner peripheral surface of the drum.

   In this means, the structure of the interrupting mechanism can be simplified because the interrupting mechanism comprises a spring and an actuator.

   Since the power generator according to the present invention has a structure in which the generator is built in the drum, it is possible to avoid an increase in the structure of the drum D in the axial direction. There is an effect that can be configured.

   Further, as claimed in claim 2, since the number of generators to be generated can be selected by contacting and releasing the generator casing with respect to the inner peripheral surface of the drum by the intermittent mechanism, the rotation of the drum is not allowed. It has the effect of demonstrating its usefulness for stable wind power generation.

   Furthermore, as the third aspect of the present invention, since the interrupting mechanism is composed of a spring and an actuator, the structure of the interrupting mechanism can be simplified, so that there is an effect that it is possible to contribute to downsizing and compactness of the entire apparatus.

It is a front view of the form for carrying out the power generator concerning the present invention. It is a longitudinal cross-sectional view of FIG. It is a perspective view which shows a prior art example.

   Hereinafter, the form for implementing the electric power generating apparatus which concerns on this invention is demonstrated based on FIG. 1, FIG.

   This configuration is composed of the drum 1, the base shaft 2, the bearing 3, the generator 4, the support base 5, and the intermittent mechanism 6.

   The drum 1 is formed in a disc shape by the ring-shaped portion 11 and the disk portion 12, the flatness is secured on the inner peripheral surface of the ring-shaped portion 11, and the bearing 3 is accommodated in the center portion of the disk portion 12. A bearing housing portion 13 having a stepped structure is formed. This drum 1 is composed of only one unit, and is rotated by an energy source such as wind, wave, water flow or the like.

   The base shaft 2 is fixed to a support base 5 (a fixed base 51 described later) and passes through the center of the disk portion 12 of the drum 1.

   The bearing 3 is accommodated in the bearing accommodating portion 13 of the drum 1, and receives the base shaft 2 passing through the center of the disc portion 12 of the drum 1 in a radial bearing. That is, the drum 1 is rotatably supported on the base shaft 2 via the bearing 3.

   The generator 4 has a roller-shaped outer casing 41 on the rotor side, a cylindrical support shaft 42 penetrating through the center of the casing 41 and projecting short on one side of the casing 41 on the stator side. They are arranged radially through a degree angle. The generator 4 has a built-in electromagnetic induction structure and generates power by rotating the casing 41. For example, a small coreless motor is selected. The casing 41 is rotationally driven by the rotation of the drum 1 with the outer peripheral surface frictionally contacting the inner peripheral surface of the ring-shaped portion 11 of the drum 1. The protruding end of the support shaft 42 is fixed to the support base 5 (movable base 42 described later) and supports the rotational drive of the casing 41.

   As shown in FIG. 1, the support base 5 has a three-pronged fixed base 51 with the base shaft 2 fixed to the center and facing the drum 1, and one end of each of the protruding portions of the fixed base 51 is rotatable. The movable base 52 is supported in the form of a short piece, and the connecting shaft 53 is connected to the fixed base 51 so as to be rotatable. A support shaft 42 of the generator 4 is fixed to the other end of the movable base 52.

   The intermittent mechanism 6 includes a spring 61 that is stretched between a valley portion (non-projecting portion) of the fixed base 51 of the support base 5 and a midway portion of the movable base 52, and a spring 61 that is midway of the movable base 52. The actuator 62 is connected to the opposite side of the transfer portion. The spring 61 is composed of a coil spring, and is pulled in a direction in which the movable base 52 of the support base 5 is rotated so as to be close to the fixed base 51, and the outer peripheral surface of the casing 41 of the generator 4 is the inner periphery of the drum 1. The pressure is applied to release the contact with the surface. The actuator 62 is composed of a small motor, a wire or the like, and rotates the movable base 52 of the support base 5 so as to be separated from the fixed base 51, so that the outer peripheral surface of the casing 41 of the generator 4 resists the elastic pressure of the spring 61. Then, the drum 1 is moved so as to come into contact with the inner peripheral surface. When the movement drive of the actuator 62 is released, the outer peripheral surface of the casing 41 is released from contact with the inner peripheral surface of the drum 1 by the elastic pressure of the spring 61.

   According to this embodiment, the generator 4 is built in the drum 1. Therefore, it is possible to avoid an increase in the structure of the drum D in the axial direction as in the power generation devices according to Patent Documents 1 and 2. As a result, despite the fact that a plurality (three) of generators 4 are provided, the whole can be made compact and compact.

   Furthermore, according to this form, the number of the generators 4 which generate electric power with the intermittent mechanism 6 can be selected similarly to the electric power generating apparatus according to Patent Documents 1 and 2. Therefore, the usefulness can be exhibited for wind power generation in which the rotation of the drum 1 becomes unstable.

   In order to select the number of generators 4 to generate power, the actuator 62 of the interrupting mechanism 6 linked to the generator 4 generating power is driven, and the actuator 62 of the interrupting mechanism 6 linked to the generator 4 not generating power is selected. The drive will be released.

   That is, as shown by a two-dot chain line in FIG. 1, when the driving of the actuator 62 of the intermittent mechanism 6 is released, the movable base 52 of the support base 5 is rotated so as to be close to the fixed base 51 by the elastic force of the spring 61. The outer peripheral surface of the casing 41 of the generator 4 that is pulled in the direction to be fixed and the support shaft 42 is fixed to the movable base 52 of the support base 5 is released from contact with the inner peripheral surface of the drum 1. Transmission of one rotation is cut off. As a result, the generator 4 does not generate power.

   Further, as shown by a solid line in FIG. 1, when the actuator 62 is driven, the movable base 52 of the support base 5 is rotated away from the fixed base 51, and the support shaft 42 is moved to the movable base 52 of the support base 5. The outer peripheral surface of the casing 41 of the generator 4 to which is fixed is brought into contact with the inner peripheral surface of the drum 1 against the spring pressure of the spring 61, so that transmission of rotation of the drum 1 is connected. This generator 4 will generate electricity.

   Note that the intermittent mechanism 6 has a simple structure including a spring 61 and an actuator 62, which contributes to a reduction in size and size of the entire apparatus.

   As described above, it is possible to arrange two or more generators 4 outside the illustrated form.

   Furthermore, it is also possible to make a contact structure by meshing gears on the outer peripheral surface of the casing 41 of the generator 4 and the inner peripheral surface of the ring-shaped portion 11 of the drum 1.

   Furthermore, it is also possible to arrange the configuration according to the present invention in a plurality of stages in the direction of the base shaft 2.

   The power generator according to the present invention can be applied to a wide range of power generation other than wind power generation.

DESCRIPTION OF SYMBOLS 1 Drum 4 Generator 41 Casing 42 Support shaft 5 Support base 51 Fixed base 52 Movable base 6 Intermittent mechanism 61 Spring 62 Actuator

Claims (3)

A base shaft, a single drum rotatably supported by the base shaft , a roller-shaped outer casing is a rotor side, a cylindrical support shaft that penetrates the center of the casing and protrudes short on one side of the casing is a stator side A plurality of generators that incorporate an electromagnetic induction structure and generate electric power by rotating the casing, and a support base that is fixed to the base shaft and that faces the drum and supports the support shafts of the generators. The machine is a power generator that is built in the drum and is driven to rotate by the outer peripheral surface of the casing contacting the inner peripheral surface of the drum. 2. The power generator according to claim 1, further comprising an intermittent mechanism for rotating the generator to bring the casing of the generator into contact with and releasing the contact with the inner peripheral surface of the drum, the support base being fixed to the base shaft and one end. A generator comprising: a movable base that is rotatably supported by a fixed base; and the generator has a support shaft fixed to the other end of the movable base of the support base.    3. The power generation device according to claim 2, wherein the interrupting mechanism includes a spring that urges the generator casing in a direction to release contact with the inner peripheral surface of the drum and a casing of the generator against the spring pressure of the drum. A power generation device comprising an actuator that moves in a contact direction with respect to a peripheral surface.

Images