Fluid pump without drive part

Abstract

To provide a fluid pump without a drive part, which has a simple structure and can achieve high output with a large flow rate.SOLUTION: A fluid pump without a drive part is a pump which causes ECF (Electro-Conjugate Fluid) to flow and includes: a first mesh-like electrode to which power supply voltage of either positive or negative polarity is applied; a second mesh-like electrode which is arranged apart from the first mesh-like electrode and to which power supply voltage of polarity different from that of the first mesh-like electrode is applied; and a third mesh-like electrode which is apart from the second mesh-like electrode, is arranged to sandwich the second mesh-like electrode between the first mesh-like electrode and the third mesh-like electrode and to which power supply voltage with the same polarity as the second mesh-like electrode is applied. ECF is caused to flow toward the third mesh-like electrode from the first mesh-like electrode through the second mesh-like electrode.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fluid pump without a drive unit.

Background Art

[0002] An ECF pump using a mesh electrode is known (see, for example, Non-Patent Document 1).

Prior Art Documents

Non-Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventional ECF pumps have a first mesh electrode and a second mesh electrode separated from the first mesh electrode. The first mesh electrode is disposed on the upstream side of the flow path, and the second mesh electrode is disposed on the downstream side of the flow path. Since this ECF pump causes ECF to flow only with two mesh electrodes, it has been difficult to obtain a sufficient flow rate.

[0005] The present invention has been made in view of the above points. Its object is to provide a fluid pump without a drive unit that has a simple structure and can increase the flow rate.

Means for Solving the Problems

[0006] The characteristics of the fluid pump without a drive unit according to the present invention are a fluid pump without a drive unit that causes ECF to flow by applying a voltage to the ECF (Electro-Conjugate Fluid), A first mesh-shaped electrode to which a power supply voltage of either the positive or negative polarity is applied, A second mesh-shaped electrode disposed at a distance from the first mesh-shaped electrode, and to which a power supply voltage of a polarity different from that of the first mesh-shaped electrode is applied, A third mesh-shaped electrode disposed at a distance from the second mesh-shaped electrode and sandwiching the second mesh-shaped electrode between the third mesh-shaped electrode and the first mesh-shaped electrode, and to which a power supply voltage of the same polarity as that of the second mesh-shaped electrode is applied, and Flowing an ECF from the first mesh-shaped electrode through the second mesh-shaped electrode toward the third mesh-shaped electrode.

Advantages of the Invention

[0007] It is possible to provide a fluid pump without a drive unit having a simple structure and capable of increasing the flow rate.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0009] <<<<Details of the Present Embodiment>>>> The embodiments will be described below with reference to the drawings.

[0010] <<<Directions, etc.>>> <Vertical direction, perpendicular direction, up-down direction> In a state where the ECF pump can be driven, it refers to the direction along the direction of gravity and the direction opposite to gravity, that is, the direction indicated by the thread suspending an object.

[0011] <Horizontal direction, lateral direction> In a state where the ECF pump can be driven, it refers to the direction perpendicular to the vertical direction.

[0012] <Upstream direction> In a state where the ECF pump can be driven, it refers to the sense of flow of the ECF.

[0013] <Downstream direction> In a state where the ECF pump can be driven, it refers to the sense of reversal of the flow of the ECF.

[0014] <Upstream-downstream direction> It refers to a direction that does not distinguish between the upstream direction and the downstream direction and can be either direction.

[0015] <<<ECF Pump 10>>> Fig. 1 is a perspective view showing the configuration of an ECF pump 10 having three mesh-like electrodes 100-1, 100-2, and 100-3.

[0016] The ECF pump 10 has three mesh-shaped electrodes 100-1, 100-2, and 100-3. The ECF pump 10 has a container (not shown) of a predetermined size. The ECF is stored in the container. The entire three mesh-shaped electrodes 100-1, 100-2, and 100-3 are arranged in the container and immersed in the ECF.

[0017] <<Mesh-shaped electrodes 100-1, 100-2, 100-3>> The three mesh-shaped electrodes 100-1, 100-2, and 100-3 have a contour of a certain shape and size. The three mesh-shaped electrodes 100-1, 100-2, and 100-3 may be held in the container by an insulating holding member (not shown) or the like and arranged at a fixed position so as to maintain a certain shape and size. In the present embodiment, the three mesh-shaped electrodes 100-1, 100-2, and 100-3 are arranged in the container such that the extending surface EP (see FIGS. 3 to 5) of the three mesh-shaped electrodes 100-1, 100-2, and 100-3 extends in the vertical direction. Hereinafter, when there is no particular need to distinguish the three mesh-shaped electrodes 100-1, 100-2, and 100-3 or when they cannot be distinguished, they are simply referred to as the mesh-shaped electrode 100.

[0018] <Mesh-shaped> The mesh-shaped electrode 100 has a mesh-shaped electrode. The term "mesh-shaped" refers to a shape including a plurality of polygonal (for example, square) openings 126 (grids) (see FIG. 2) formed by intersecting conductive thin wires 110. The mesh-shaped is a shape that can be visually recognized as a net shape. The mesh-shaped may be formed not only by the conductive thin wires 110 but also, for example, by punching metal, expanded metal, etc. The mesh-shaped electrode 100 may have a shape that allows the ECF to pass through the opening 126 when a power supply voltage is applied.

[0019] <Shape and size of the mesh-shaped electrode 100> The mesh-shaped electrode 100 has a contour in the shape of a square or a rectangle. The overall contour of the mesh-shaped electrode 100 may be square, rectangular, polygonal, circular, elliptical, or oval. The overall contour of the mesh-shaped electrode 100 only needs to have a certain size and shape. The mesh-shaped electrode 100 extends along a plane (the extending plane EP (see FIGS. 3 to 5)). The plane may be a flat surface or a curved surface (for example, a cylindrical surface, a spherical surface, etc.). The mesh-shaped electrode 100 of the present embodiment has a substantially flat shape. The mesh-shaped electrode 100 may have a shape in which a plane and a curved surface are mixed. The mesh-shaped electrode 100 may have a shape formed by connecting two or more planes with different normal directions.

[0020] In the present embodiment, an example is shown in which the three mesh-shaped electrodes 100-1, 100-2, and 100-3 have the same shape and size, but at least one of the three mesh-shaped electrodes 100-1, 100-2, and 100-3 may have a different shape or size. It may be appropriately determined according to the desired flow rate, output, etc. of the ECF pump 10.

[0021] <Length LP-1, length LT-1, length LP-2, length LT-2, length LP-3, length LT-3> As shown in FIG. 1, the mesh-shaped electrode 100-1 has a longitudinal length LP-1 and a transverse length LT-1. The mesh-shaped electrode 100-2 has a longitudinal length LP-2 and a transverse length LT-2. The mesh-shaped electrode 100-3 has a longitudinal length LP-3 and a transverse length LT-3.

[0022] <Normal NU-1, normal ND-1, normal NU-2, normal ND-2, normal NU-3, normal ND-3> As shown in FIGS. 3 to 5, the mesh-shaped electrode 100-1 has a normal NU-1 directed upstream and a normal ND-1 directed downstream. The mesh-shaped electrode 100-2 has a normal NU-2 directed upstream and a normal ND-2 directed downstream. The mesh-shaped electrode 100-3 has a normal NU-3 directed upstream and a normal ND-3 directed downstream.

[0023] <Arrangement of three mesh-shaped electrodes 100-1, 100-2, and 100-3> The three mesh-shaped electrodes 100-1, 100-2, and 100-3 are arranged such that the extending surface EP extends in the vertical direction. The three mesh-shaped electrodes 100-1, 100-2, and 100-3 are arranged at intervals from each other and substantially parallel to each other. The three mesh-shaped electrodes 100-1, 100-2, and 100-3 are arranged at intervals from each other along the upstream to downstream direction. In the present embodiment, the distance between the mesh-shaped electrode 100-1 and the mesh-shaped electrode 100-2 is DE1. The distance between the mesh-shaped electrode 100-2 and the mesh-shaped electrode 100-3 is DE2.

[0024] In the present embodiment, the distance DE1 and the distance DE2 are made equal, but they may be made different. The distance DE1 and the distance DE2 can be appropriately determined according to the value V1 of the power supply voltage applied to the mesh-shaped electrode 100-1, the value V2 of the power supply voltage applied to the mesh-shaped electrode 100-2, and the value V3 of the power supply voltage applied to the mesh-shaped electrode 100-3. The power supply voltage will be described later.

[0025] The three mesh-shaped electrodes 100-1, 100-2, and 100-3 do not necessarily have to be arranged substantially parallel to each other. They can be appropriately changed according to the desired flow rate, output, etc. of the ECF pump 10.

[0026] <<Conductive fine wire 110>> The three mesh electrodes 100-1, 100-2, and 100-3 are composed of conductive thin wires 110. As shown in FIG. 2, in this embodiment, the three mesh electrodes 100-1, 100-2, and 100-3 are composed of vertical conductive thin wires 110P and horizontal conductive thin wires 110T. When there is no particular need to distinguish between the vertical conductive thin wires 110P and the horizontal conductive thin wires 110T, or when they cannot be distinguished, they are simply referred to as conductive thin wires 110. In the example shown in FIG. 2, at the top 122, the horizontal conductive thin wire 110T is arranged on the front side of the paper surface, and the vertical conductive thin wire 110P is curved toward the depth side of the paper surface relative to the horizontal conductive thin wire 110T and arranged along the vertical direction. In the example shown in FIG. 2, the front side of the paper surface may be either the upstream side or the downstream side, and the depth side of the paper surface may be the opposite side of the front side of the paper surface, either the upstream side or the downstream side.

[0027] The vertical conductive thin wire 110P and the horizontal conductive thin wire 110T are joined to each other and electrically connected. By the joining, the vertical conductive thin wire 110P and the horizontal conductive thin wire 110T overlap and intersect. The vertical conductive thin wire 110P and the horizontal conductive thin wire 110T have the same potential due to the electrical connection. Even if the vertical conductive thin wire 110P and the horizontal conductive thin wire 110T are not fixedly joined, as long as they are intertwined (cross-linked) with each other and loosely attached (attached in a state with play), an electrical connection may be formed.

[0028] <<Unit mesh 120>> The vertical conductive thin wire 110P and the horizontal conductive thin wire 110T are joined to each other to form a unit mesh 120. As shown in FIG. 1, each of the three mesh electrodes 100-1, 100-2, and 100-3 has a plurality of unit meshes 120. The mesh electrode 100-1 has a plurality of unit meshes 120-1. The mesh electrode 100-2 has a plurality of unit meshes 120-2. The mesh electrode 100-3 has a plurality of unit meshes 120-3. When there is no need to particularly distinguish or when it is impossible to distinguish the unit meshes 120-1, 120-2, and 120-3, they are simply referred to as unit mesh 120.

[0029] In the present embodiment, the unit mesh 120 has a rectangular shape such as a square or a rectangle. In addition to the rectangular shape, the unit mesh 120 can be shaped like a polygon such as a triangle or a hexagon. In the present embodiment, the unit meshes 120 have the same size and the same shape. Among the plurality of unit meshes 120, unit meshes 120 of different sizes or shapes may be included. As long as the plurality of unit meshes 120 can constitute the mesh electrode 100 as a whole.

[0030] <Top 122> Each of the unit meshes 120 has a plurality of tops 122. The tops 122 are formed by the joining points of the vertical conductive thin wire 110P and the horizontal conductive thin wire 110T. The top 122 means the vertex part of the polygon of the unit mesh 120 having a polygonal shape. A protruding part 130 described later is formed on the top 122. Mainly, the top 122 becomes clear in the direction perpendicular to the upstream and downstream directions in the view (see FIG. 2), and the protruding part 130 mainly becomes clear in the upstream and downstream directions in the view (see FIGS. 3 to 5).

[0031] <Side part 124> The side portions 124 are formed by the conductive fine wires 110 extending between the mutually adjacent tops 122 of each of the unit meshes 120. The unit mesh 120-1 of the mesh-shaped electrode 100-1 has a longitudinal side portion 124 with a length MLP-1 and a lateral side portion 124 with a length MLT-1. The unit mesh 120-2 of the mesh-shaped electrode 100-2 has a longitudinal side portion 124 with a length MLP-2 and a lateral side portion 124 with a length MLT-2. The unit mesh 120-3 of the mesh-shaped electrode 100-3 has a longitudinal side portion 124 with a length MLP-3 and a lateral side portion 124 with a length MLT-3. In particular, when there is no need to distinguish or when it is impossible to distinguish between the longitudinal side portion 124 and the lateral side portion 124, they are simply referred to as side portions 124. In two adjacent unit meshes 120, the tops 122 and the side portions 124 are common.

[0032] <Opening 126> As shown in FIG. 2, in the present embodiment, one opening 126 is formed by the region surrounded by the four tops 122 and the four side portions 124. In the present embodiment, one unit mesh 120 has one opening 126. Even if the unit mesh 120 is a polygon other than a square shape, one opening 126 is defined by the region surrounded by the plurality of tops 122 and the plurality of side portions 124.

[0033] <Protrusion 130> The unit mesh 120 has a protrusion 130 that protrudes in a direction perpendicular to the extending surface EP. That is, the protrusion 130 is mainly made clear in the upstream and downstream directions (see FIGS. 3 to 5). The protrusion 130 is formed by the overlapping and crossing of the longitudinal conductive thin wire 110P and the lateral conductive thin wire 110T. In the present embodiment, the protrusion 130 is formed by causing the longitudinal conductive thin wire 110P to crawl along a part (about half a circumference) of the outer periphery of the lateral conductive thin wire 110T and engaging them. The protrusion 130 may also be formed by causing the lateral conductive thin wire 110T to crawl along a part (about half a circumference) of the outer periphery of the longitudinal conductive thin wire 110P and engaging them. Further, the protrusion 130 may be formed by winding (circling) one conductive thin wire 110 around the outer periphery of the other conductive thin wire 110 a plurality of times.

[0034] When the mesh-shaped electrode 100 is formed of punching metal, expanded metal, etc., the punching metal, expanded metal, etc. are pressed against a molding die (not shown) having a plurality of protrusions at positions corresponding to the top portions 122 and deformed by the protrusions, so that the protrusions 130 can be formed on the top portions 122.

[0035] The protrusion 130 is formed at each of the top portions 122 of the unit mesh 120. The protrusion 130 protrudes toward either the upstream side or the downstream side (see FIGS. 3 to 5). That is, the protrusion 130 protrudes along either the normal line in the upstream direction (normal lines NU-1, NU-2, NU-3) or the normal line in the downstream direction (normal lines ND-1, ND-2, ND-3) of the extending surface EP.

[0036] By forming the protrusion 130, in the case of a positive potential, an electric force line that gradually spreads from the protrusion 130 is generated, and in the case of a negative potential, an electric force line that gradually narrows toward the protrusion 130 is generated. By forming the protrusion 130, the electric field generated near the protrusion 130 can be made stronger than the electric field generated around the side portion 124. By generating a strong electric field near the protrusion 130, the ECF can be easily made to flow.

[0037] <Density of the protrusions 130> The density of the protrusions 130 is determined by the size of the unit mesh 120. By the density of the protrusions 130, the distribution of the generated electric lines of force, the strength and direction of the electric field, etc. can be adjusted. The density of the protrusions 130 may be appropriately determined according to the type of ECF, the desired flow rate of the ECF, the output of the ECF pump 10, etc. The size of the unit mesh 120 is determined by the length of the side portion 124 and the shape of the unit mesh 120, etc.

[0038] <Direction in which the protrusions 130 protrude> In the present embodiment, the protrusions 130 of the mesh-shaped electrode 100-1 protrude toward the downstream, and the protrusions 130 of the mesh-shaped electrodes 100-2 and 100-3 protrude toward the upstream. That is, the protrusions 130 of the mesh-shaped electrode 100-1 face the protrusions 130 of the mesh-shaped electrodes 100-2 and 100-3 along the upstream and downstream directions. The direction in which the protrusions 130 of the mesh-shaped electrodes 100-1, 100-2, and 100-3 protrude is not limited to this, and may be appropriately determined according to the desired flow rate of the ECF, etc.

[0039] <Thickness of the longitudinal conductive thin wire 110P and thickness of the lateral conductive thin wire 110T> The thickness of the longitudinal conductive thin wire 110P and the thickness of the lateral conductive thin wire 110T may be the same or different. By the thickness of the longitudinal conductive thin wire 110P and the thickness of the lateral conductive thin wire 110T, the height at which the protrusions 130 protrude, the curvature of the protrusions 130, etc. can be adjusted. The thickness of the longitudinal conductive thin wire 110P and the thickness of the lateral conductive thin wire 110T may be appropriately determined according to the type of ECF, the desired flow rate of the ECF, the output of the ECF pump 10, etc.

[0040] <First arrangement mode> FIG. 3 is a view showing a first arrangement mode of the protrusions 130 of the three mesh-shaped electrodes 100-1, 100-2, and 100-3 in a direction perpendicular to the upstream and downstream directions.

[0041] In the first arrangement mode, the protruding portion 130 of the mesh-shaped electrode 100-1 is located at the center of the opening 126 of the mesh-shaped electrode 100-2 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-2 overlaps with the protruding portion 130 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-1 is located at the center of the opening 126 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF.

[0042] <Second arrangement mode> FIG. 4 is a diagram showing a second arrangement mode of the protruding portions 130 of the three mesh-shaped electrodes 100-1, 100-2, and 100-3 when viewed in a direction perpendicular to the upstream and downstream directions.

[0043] In the second arrangement mode, the protruding portion 130 of the mesh-shaped electrode 100-1 is located at the center of the opening 126 of the mesh-shaped electrode 100-2 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-2 is located at the center of the opening 126 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-1 overlaps with the protruding portion 130 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF.

[0044] <Third arrangement mode> FIG. 5 is a diagram showing a third arrangement mode of the protruding portions 130 of the three mesh-shaped electrodes 100-1, 100-2, and 100-3 when viewed in a direction perpendicular to the upstream and downstream directions.

[0045] In the third arrangement mode, the protruding portion 130 of the mesh-shaped electrode 100-1 overlaps with the protruding portion 130 of the mesh-shaped electrode 100-2 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-2 overlaps with the protruding portion 130 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-1 overlaps with the protruding portion 130 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF.

[0046] <Another arrangement mode 1> The following arrangement may also be used. The protruding portion 130 of the mesh-shaped electrode 100-1 overlaps with the protruding portion 130 of the mesh-shaped electrode 100-2 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-2 is located at the center of the opening 126 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF. The protruding portion 130 of the mesh-shaped electrode 100-3 is located at the center of the opening 126 of the mesh-shaped electrode 100-3 when viewed in the upstream and downstream directions of the ECF.

[0047] <Another embodiment of the arrangement 2> In the first embodiment of the arrangement and the second embodiment of the arrangement, the protruding portion 130 of one mesh-shaped electrode 100-1 is arranged so as to be located at the center of the opening 126 of the other mesh-shaped electrode 100. It is not limited to the configuration of being located at the center of the opening 126, and as long as the protruding portion 130 of one mesh-shaped electrode 100-1 is included in the opening 126 of the other mesh-shaped electrode 100, it may be arranged at any position.

[0048] <The generated electric field> It is only necessary to form a strengthened electric field between the protruding portion 130 of the mesh-shaped electrode 100-1 and the protruding portion 130 of the mesh-shaped electrode 100-2, and to form a strengthened electric field between the protruding portion 130 of the mesh-shaped electrode 100-1 and the protruding portion 130 of the mesh-shaped electrode 100-3.

[0049] <<Components of the three mesh-shaped electrodes 100-1, 100-2, 100-3>> The components of the three mesh-shaped electrodes 100-1, 100-2, 100-3 mainly include the type of ECF, the material of the mesh-shaped electrode 100-1, the material of the mesh-shaped electrode 100-2, the material of the mesh-shaped electrode 100-3, the distance DE1 between the mesh-shaped electrode 100-1 and the mesh-shaped electrode 100-2, the distance DE2 between the mesh-shaped electrode 100-2 and the mesh-shaped electrode 100-3, the length and material of the spacer SP1 for supporting the mesh-shaped electrode 100-1 and the mesh-shaped electrode 100-2 and forming the distance DE1, The length and material of the spacer SP2 for supporting the mesh-shaped electrodes 100-2 and 100-3 and forming the interval DE2, The length MLP-1 (count) of the vertical side portion 124, The length MLT-1 (count) of the horizontal side portion 124, The material and thickness (wire diameter) of the vertical conductive fine wire 110P, The material and thickness (wire diameter) of the horizontal conductive fine wire 110T, The shape of the opening 126 The value V1 of the power supply voltage applied to the mesh-shaped electrode 100-1, The value V2 of the power supply voltage applied to the mesh-shaped electrode 100-1, The value V3 of the power supply voltage applied to the mesh-shaped electrode 100-1, etc., can be appropriately determined according to the circumstances.

[0050] <Intervals DE1, DE> The interval DE1 and the interval DE2 may be the same or different. Depending on the charging characteristics etc. according to the type of ECF, the interval DE1 can be made larger than the interval DE2, or the interval DE2 can be made larger than the interval DE1, and can be appropriately determined.

[0051] <The length MLP-1 of the vertical side portion 124 and the length MLT-1 (count) of the horizontal side portion 124> Regarding the lengths MLP-1 and MLT-1 (count) of each of the three mesh-shaped electrodes 100-1, 100-2, and 100-3, all the counts of the three mesh-shaped electrodes 100-1 to 100-3 may be the same, or at least one of the counts of the mesh-shaped electrodes 100 may be made different. The combination of the lengths MLP-1 and MLT-1 (count) of each of the three mesh-shaped electrodes 100-1 to 100-3 can be appropriately determined according to the purpose and application (for example, corresponding to stress emphasis, flow rate emphasis, flow temperature, etc.) etc., in accordance with the type of ECF used.

[0052] <The materials of the mesh-shaped electrodes 100-1 to 100-3> The materials of the mesh electrodes 100-1 to 100-3 can be, for example, nickel-plated fine wires. All the materials of the mesh electrodes 100-1 to 100-3 may be of the same metal type, or at least one of the materials of the mesh electrodes 100 may be of a different metal type.

[0053] <The materials and thicknesses of the longitudinal conductive fine wires 110P and the transverse conductive fine wires 110T> The materials and thicknesses of the longitudinal conductive fine wires 110P and the transverse conductive fine wires 110T may be the same for all of the three mesh electrodes 100-1 to 100-3, or may be made different for at least one of the mesh electrodes 100. Further, either one of the longitudinal conductive fine wires 110P and the transverse conductive fine wires 110T may be a conductor, and the other may be a non-conductor (insulator).

[0054] <The shape of the opening 126> The shape of the opening 126 may be not only a configuration (quadrilateral) in which the longitudinal conductive fine wires 110P and the transverse conductive fine wires 110T are orthogonal, but also a configuration other than orthogonal such as a rhombus or a hexagon (polygon). It can be not only a biaxial weave of the longitudinal conductive fine wires 110P and the transverse conductive fine wires 110T, but also a triaxial weave or a quadraxial weave with three or more fine wires.

[0055] It is sufficient if the ECF is taken in from around the three mesh electrodes 100-1, 100-2, and 100-3 and the flow rate can be increased each time it passes through the mesh electrodes 100-1, 100-2, and 100-3.

[0056] <<Power supply device 200>> FIG. 6 is a circuit block diagram showing a power supply device connected to the three mesh electrodes 100-1, 100-2, and 100-3.

[0057] The power supply device 200 supplies a DC voltage separately to each of the three mesh-shaped electrodes 100-1, 100-2, and 100-3. The power supply device 200 supplies a DC voltage having a constant value that does not change over time. By doing so, an electrostatic field and electric lines of force that do not change over time are generated from each of the three mesh-shaped electrodes 100-1, 100-2, and 100-3.

[0058] A power supply voltage of either positive or negative polarity is applied to the mesh-shaped electrode 100-1. That is, a power supply voltage having a polarity different from that of the mesh-shaped electrode 100-1 is applied to the mesh-shaped electrodes 100-2 and 100-3. Specifically, when a positive power supply voltage is applied to the mesh-shaped electrode 100-1, a negative power supply voltage is applied to the mesh-shaped electrodes 100-2 and 100-3. Also, when a negative power supply voltage is applied to the mesh-shaped electrode 100-1, a positive power supply voltage is applied to the mesh-shaped electrodes 100-2 and 100-3. It is preferable that power supply voltages of the same magnitude are applied to the mesh-shaped electrodes 100-2 and 100-3.

[0059] When only the two mesh-shaped electrodes 100-1 and 100-2 are provided, a negative power supply voltage is applied to the mesh-shaped electrode 100-1, and a positive power supply voltage is applied to the mesh-shaped electrode 100-2. On the other hand, in a configuration having the three mesh-shaped electrodes 100-1, 100-2, and 100-3, when the interval DE1 and the interval DE2 are made the same, a positive power supply voltage is applied to the mesh-shaped electrode 100-1, and negative power supply voltages are applied to the mesh-shaped electrodes 100-2 and 100-3. By doing so, the flow rate of the ECF flowing can be increased as compared with a configuration having only the two mesh-shaped electrodes 100-1 and 100-2.

[0060] By applying a power supply voltage using the three mesh-shaped electrodes 100-1, 100-2, and 100-3, the flow rate of the ECF can be increased each time it passes through the mesh-shaped electrodes 100-1, 100-2, and 100-3.

[0061] Different power supply voltages of different magnitudes or power supply voltages of different polarities may be applied to the mesh electrodes 100-2 and 100-3.

[0062] For example, when the interval DE2 is made larger than the interval DE1, a negative power supply voltage is applied to the mesh electrodes 100-1 and 100-3, and a positive power supply voltage is applied to the mesh electrode 100-2, the flow rate of the ECF flowing can be increased compared to the case where the interval DE1 and the interval DE1 are made the same, a negative power supply voltage is applied to the mesh electrode 100-1, and positive power supply voltages are applied to the mesh electrodes 100-2 and 100-3.

[0063] Also, when the interval DE1 is made larger than the interval DE2, a negative power supply voltage is applied to the mesh electrodes 100-1 and 100-3, and a positive power supply voltage is applied to the mesh electrode 100-2, the flow rate of the ECF flowing can be increased compared to the case where the interval DE1 and the interval DE1 are made the same, a negative power supply voltage is applied to the mesh electrode 100-1, and positive power supply voltages are applied to the mesh electrodes 100-2 and 100-3.

[0064] Furthermore, even if the power supply voltages applied to all of the mesh electrodes 100-1, 100-2, and 100-3 have the same polarity, it is only necessary that the power supply voltage applied to the mesh electrode 100-1 be different from the power supply voltages applied to the mesh electrodes 100-2 and 100-3.

[0065] A pulsating power supply voltage such as a pulsed power supply voltage instead of a DC power supply voltage may be applied to at least one of the mesh electrodes 100-1, 100-2, and 100-3. It may be appropriately determined according to the type of ECF, the desired flow rate of the ECF, the output of the ECF pump 10, etc., such as the application timing, pulse period, and voltage value of the mesh electrodes 100-1, 100-2, and 100-3.

[0066] As shown in FIG. 6, the change in the flow rate of ECF is indicated by the white solid-line arrow. The dashed-line arrow indicates the flow rate when only the two mesh-shaped electrodes 100-1 and 100-2 are present. The solid-line arrow indicates the flow rate when three mesh-shaped electrodes 100-1, 100-2, and 100-3 are present. By increasing the number of mesh-shaped electrodes 100, it becomes easier to discharge ECF, and as a result, the flow rate of ECF flowing can be increased. Thus, by using three mesh-shaped electrodes 100-1, 100-2, and 100-3 instead of two mesh-shaped electrodes 100-1 and 100-2, the flow rate of ECF can be increased.

[0067] By adding the third mesh-shaped electrode 100-3 to the two mesh-shaped electrodes 100-1 and 100-2, without changing the size of the mesh-shaped electrode 100 extending along the extending surface EP, only the region where the third mesh-shaped electrode 100-3 is disposed is slightly extended in the direction perpendicular (upstream and downstream direction) to the extending surface EP, and the flow rate of ECF can be increased.

[0068] <<<Series Structure of ECF Pump>>> FIG. 7 is a view showing an example in which three ECF pumps 10(1), 10(2), and 10(3) are arranged in series in the upstream and downstream directions as viewed in the upstream and downstream directions.

[0069] In the present embodiment, the distance between the ECF pump 10(1) and the ECF pump 10(2) is DP1. The distance between the ECF pump 10(2) and the ECF pump 10(3) is DP2.

[0070] In the present embodiment, the ECF pumps 10(1), 10(2), and 10(3) have the same structure. Each time the ECF passes through the ECF pump 10, the flow rate of ECF can be increased.

[0071] The structures of the ECF pumps 10(1), 10(2), and 10(3) may be made different.

[0072] As shown in FIG. 7, the change in the flow rate of ECF is indicated by the white solid-line arrow. The dashed-line arrow indicates the flow rate when there is only one ECF pump 10. The solid-line arrow indicates the flow rate when there are three ECF pumps 10(1), 10(2), and 10(3). By increasing the number of ECF pumps 10, it becomes easier to discharge ECF, and as a result, the flow rate of ECF can be increased. In this way, by using three ECF pumps 10(1), 10(2), and 10(3) instead of two ECF pumps 10(1) and 10(2), the flow rate of ECF can be increased.

[0073] In this embodiment, an example in which three ECF pumps 10(1), 10(2), and 10(3) are arranged in series is shown, but two ECF pumps 10 may be arranged in series, or four or more ECF pumps 10 may be arranged in series.

[0074] The structure of the ECF pumps 10(1), 10(2), and 10(3) may be appropriately determined according to the type of ECF, the desired flow rate, and output.

[0075] <ECF Flow Path> The ECF pump 10 has a forward path and a return path, and has a circulation flow path for circulating ECF. By providing the circulation flow path, the ECF pump 10 can be continuously driven. The circulation flow path is sealed. By sealing it, drying of ECF can be prevented and the density of ECF can be kept constant. Furthermore, the ECF pump 10 preferably has a configuration that can replenish ECF. By adding ECF when the amount of ECF decreases, the total amount of ECF can be made constant.

[0076] < <ecf>> The electro-conjugate fluid (ECF) used in this embodiment is a liquid capable of forming a moving flow between electrodes in response to an applied voltage. The electro-conjugate fluid used here is an organic compound in liquid form at the operating temperature capable of forming a moving flow between electrodes in response to an applied voltage, and this organic compound is substantially insulating. More specifically, dibutyl adipate, triacetin, etc., as detailed in Patent No. 3179035, represented by conductivity = 4×10 -10 S / m, viscosity = 1×100 Pa·s at point P, conductivity = 4×10 -10 S / m, viscosity = 1×10 -4 Pa·s at point Q, conductivity = 5×10 -6 S / m, viscosity = 1×10 -4 Pa·s at point R, a compound having conductivity and viscosity located inside a right triangle with these points as vertices, or a fluid composed of a mixture of two or more compounds prepared to have conductivity and viscosity located inside the triangle, or, as detailed in Patent No. 3157804, represented by ethyl perfluorobutyl ether, etc., a fluorine-containing fluid having a conductivity in the range of 4×10 -10 ~5×10 -6 S / m and a surface tension of 22 dyn / cm or less is used.

[0077] Specific representative ECFs (electro-conjugate fluids) include FF-1EHA2, FF-3EHA2, FF-8EHA2, FF-101EHA2, FF-909EHA2, FF-505-12, FF-505-15, etc. manufactured by New Technology Management Co., Ltd. Each is suitable, but not limited to these.

[0078] <<<<Embodiments of the Invention>>>> <<First Feature>> According to the first feature, A fluid pump (such as ECF pumps 10, 10(1), 10(2), 10(3), etc.) without a driving unit for flowing ECF (Electro-Conjugate Fluid) by applying a voltage to the ECF (for example, a power supply device 200, etc.). A first mesh-shaped electrode (such as mesh-shaped electrode 100-1, etc.) to which a power supply voltage of either the positive or negative polarity is applied. A second mesh-shaped electrode disposed at a distance from the first mesh-shaped electrode, and a second mesh-shaped electrode (such as mesh-shaped electrode 100-2, etc.) to which a power supply voltage of a polarity different from that of the first mesh-shaped electrode is applied. A third mesh-shaped electrode disposed at a distance from the second mesh-shaped electrode and sandwiching the second mesh-shaped electrode between the first mesh-shaped electrode and the third mesh-shaped electrode, and a third mesh-shaped electrode (such as mesh-shaped electrode 100-3, etc.) to which a power supply voltage of the same polarity as that of the second mesh-shaped electrode is applied, comprising. There is provided a fluid pump without a driving unit for flowing ECF from the first mesh-shaped electrode through the second mesh-shaped electrode toward the third mesh-shaped electrode.

[0079] Since it includes the first mesh-shaped electrode, the second mesh-shaped electrode, and the third mesh-shaped electrode, the flow rate of ECF can be increased and the output can be enhanced.

[0080] <<Second Feature>> The second feature is, in the first feature, The first mesh-shaped electrode has a plurality of first unit meshes (such as unit mesh 120-1, etc.) having a polygonal shape with a plurality of first vertices. The second mesh-shaped electrode has a plurality of second unit meshes (such as unit mesh 120-2, etc.) having a polygonal shape with a plurality of second vertices. At least a part (such as top 122, etc.) of the plurality of first vertices is included within the second unit mesh region (such as opening 126, etc.) when viewed in the upstream and downstream directions of the ECF.

[0081] <<Third Feature>> The third feature is, in the second feature, the third mesh-shaped electrode has a plurality of third unit meshes (such as unit mesh 120-3, etc.) having a polygonal shape with a plurality of third vertices, when viewed in the upstream and downstream directions of the ECF, at least a part of the plurality of second vertices (such as the top 122, etc.) overlaps with the third vertices (such as the top 122, etc.).

[0082] <<Fourth Feature>> The fourth feature is, in the second feature, the third mesh-shaped electrode has a plurality of third unit meshes (such as unit mesh 120-3, etc.) having a polygonal shape with a plurality of third vertices, when viewed in the upstream and downstream directions of the ECF, at least a part of the plurality of second vertices (such as the top 122, etc.) is included within the third unit mesh region (such as the opening 126, etc.).

[0083] <<Fifth Feature>> The fifth feature is, in the first feature, the first mesh-shaped electrode has a plurality of first unit meshes (such as unit mesh 120-1, etc.) having a polygonal shape with a plurality of first vertices, the second mesh-shaped electrode has a plurality of second unit meshes (such as unit mesh 120-2, etc.) having a polygonal shape with a plurality of second vertices, when viewed in the upstream and downstream directions of the ECF, at least a part of the plurality of first vertices (such as the top 122, etc.) overlaps with the second vertices (such as the top 122, etc.).

[0084] <<Sixth Feature>> The sixth feature is, in the fifth feature, the third mesh-shaped electrode has a plurality of third unit meshes (such as unit mesh 120-3, etc.) having a polygonal shape with a plurality of third vertices, When viewed in the upstream and downstream directions of the ECF, at least a part of the plurality of second vertices (for example, the top 122, etc.) overlaps with the third vertex (for example, the top 122, etc.).

[0085] <<Seventh Feature>> The seventh feature is in the first feature, the first mesh-shaped electrode, the second mesh-shaped electrode, and the third mesh-shaped electrode have a first electric wire (for example, a vertical conductive thin wire 110P, etc.) and a second electric wire (for example, a horizontal conductive thin wire 110T, etc.) different from the first electric wire, the first mesh-shaped electrode has a plurality of first unit meshes (for example, unit mesh 120-1, etc.) having a polygonal shape with a plurality of first vertices (for example, the top 122, etc.), the second mesh-shaped electrode has a plurality of second unit meshes (for example, unit mesh 120-2, etc.) having a polygonal shape with a plurality of second vertices (for example, the top 122, etc.), the third mesh-shaped electrode has a plurality of third unit meshes (for example, unit mesh 120-3, etc.) having a polygonal shape with a plurality of third vertices (for example, the top 122, etc.), the first vertex, the second vertex, and the third vertex are the ECF pump according to claim 1 formed by the first electric wire and the second electric wire overlapping and intersecting.

[0086] <<<<Scope of Embodiment>>>> As described above, this embodiment has been described. However, the descriptions and drawings forming a part of this disclosure should not be understood as limiting. Various embodiments not described herein are included.

Description of Reference Numerals

[0087] 10, 10(1), 10(2), 10(3) ECF pump 100-1, 100-2, 100-3 Mesh-shaped electrode 120, 120-1, 120-2, 120-3 Unit mesh 126 Opening 130 Protrusion 200 Power supply device< / ecf>

Claims

1. A fluid pump without a driving unit that causes ECF (Electro-Conjugate Fluid) to flow by applying a voltage to the ECF, a first mesh-shaped electrode to which a power supply voltage of either the positive or negative polarity is applied, a second mesh-shaped electrode arranged at a distance from the first mesh-shaped electrode, and to which a power supply voltage of a polarity different from that of the first mesh-shaped electrode is applied, a third mesh-shaped electrode arranged at a distance from the second mesh-shaped electrode and sandwiching the second mesh-shaped electrode between the third mesh-shaped electrode and the first mesh-shaped electrode, and to which a power supply voltage of the same polarity as that of the second mesh-shaped electrode is applied, and a fluid pump without a driving unit that causes ECF to flow from the first mesh-shaped electrode, through the second mesh-shaped electrode, and toward the third mesh-shaped electrode.

2. The first mesh-shaped electrode has a plurality of first unit meshes each having a polygonal shape with a plurality of first vertices, the second mesh-shaped electrode has a plurality of second unit meshes each having a polygonal shape with a plurality of second vertices, and a fluid pump without a driving unit according to Claim 1, wherein at least a part of the plurality of first vertices is included in the second unit mesh region when viewed in the upstream and downstream directions of the ECF.

3. The third mesh-shaped electrode has a plurality of third unit meshes each having a polygonal shape with a plurality of third vertices, and a fluid pump without a driving unit according to Claim 2, wherein at least a part of the plurality of second vertices overlaps with the third vertices when viewed in the upstream and downstream directions of the ECF.

4. The third mesh-shaped electrode has a plurality of third unit meshes each having a polygonal shape with a plurality of third vertices, and a fluid pump without a driving unit according to Claim 2, wherein at least a part of the plurality of second vertices is included in the third unit mesh region when viewed in the upstream and downstream directions of the ECF.

5. The first mesh-shaped electrode has a plurality of first unit meshes each having a polygonal shape with a plurality of first vertices, the second mesh-shaped electrode has a plurality of second unit meshes each having a polygonal shape with a plurality of second vertices, and a fluid pump without a driving unit according to Claim 1, wherein at least a part of the plurality of first vertices overlaps with the second vertices when viewed in the upstream and downstream directions of the ECF.

6. The third mesh-shaped electrode has a plurality of third unit meshes each having a polygonal shape with a plurality of third vertices, The fluid pump without a drive unit according to claim 5, wherein at least a part of the plurality of second vertices overlap the third vertices when viewed in the upstream and downstream directions of the ECF.

7. The first mesh-shaped electrode, the second mesh-shaped electrode, and the third mesh-shaped electrode have a first electric wire and a second electric wire different from the first electric wire, The first mesh-shaped electrode has a plurality of first unit meshes each having a polygonal shape with a plurality of first vertices, The second mesh-shaped electrode has a plurality of second unit meshes each having a polygonal shape with a plurality of second vertices, The third mesh-shaped electrode has a plurality of third unit meshes each having a polygonal shape with a plurality of third vertices, The fluid pump without a drive unit according to claim 1, wherein the first vertex, the second vertex, and the third vertex are formed by the first electric wire and the second electric wire overlapping and intersecting each other.

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