JPH03160200A - Air blower - Google Patents

Abstract

PURPOSE:To conduct air blowing with an excellent efficiency and with a simple structure at a device in which air blowing is conducted by reciprocating a thin piece that is deformable to a curve or inclinable, by arranging so that part or the whole of the thin piece may be inclined in an air blowing direction at the time of a reciprocating direction movement. CONSTITUTION:A thin piece 1 is provided in a way it can be reciprocated up and down, and it is arranged that the air blowing direction front end portion and rear end portion of this thin piece 1 are alternately moved up and down. And it is arranged that at the time of reciprocating both direction movements, the movement direction surface of a thin piece 2 is inclined in an air blowing direction, and air is pushed out in the air blowing direction by means of the thin piece 2 air blowing direction facing surface. And then, air blowing is conducted by operating the thin piece 1 continuously.

Description

[Detailed Description of the Invention] [Industrial Application Fields] The present invention relates to a blower for blowing air, etc. Thank you for your time,
In particular, it relates to a small air blower that does not have rotating blades like conventional fans, but blows air by reciprocating thin pieces. [Prior art] Conventional fans with rotating blades used a motor to rotate the rotating blades. Bearings are used on the motor shaft, but the lifespan of the bearings is only 10,000 to 20,000 hours, so regular replacement of the fan was necessary. [Problems to be solved by the present invention] The present invention provides a device that blows air without using a motor. [Means for solving the problem] The first claim is an air blower that causes a thin piece that can be curved or tilted to reciprocate and blows air in a direction perpendicular to the direction of the reciprocating movement. This is an air blower in which a part or all of the surface of the thin piece in the moving direction is inclined in the air blowing direction during reciprocating movement in both directions so that the thin piece is located at The second claim provides a method for reciprocating a thin piece that can be deformed into a curve or that can be tilted so as to be located in an air blower that blows air in a direction perpendicular to the direction of the reciprocating movement. (iii) by moving, deforming or tilting the piece, creating regions of low atmospheric pressure one after another on the surface opposite to the direction of movement of the thin piece from the part of the thin piece on the side of the blowing direction to the part on the side of the blowing direction; drawing straw gas in a direction opposite to the blowing direction and accelerating it to give it inertia of motion; b. By the inertia of the drawn gas, the gas is sent out in the blowing direction, C. After the flake has finished its reciprocating movement in one direction, Gyakue I81
This is a blower that waits until the gas is sent out in the blowing direction before moving. The third claim is a means for reciprocating the end portion of the thin piece on the side of the blowing direction, and a means for reciprocating the end portion of the thin piece on the side of the blowing direction so as to be located in the blower of claim (1) or (2). and means for moving the thin piece, such that when the thin piece moves back and forth in both directions, the end portion of the thin piece on the side of the air blowing direction is positioned forward with respect to when the thin piece moves back and forth in both directions. This is an air blower in which the end part of the air blower moves ahead of the end part on the side of the air blowing direction. A fourth claim includes means for reciprocating the thin piece and means for curving or tilting the thin piece, so as to be located in the air blower of claim (1) or (2), and means for reciprocating the thin piece. This air blower curves or tilts the thin piece so that when moving in both directions, the end portion of the thin piece on the side of the blowing direction is located in front of the side when moving back and forth in the blowing direction. The building has a means for moving and curving or tilting the thin piece so that it is positioned in the sanator of the fan tank, and when the thin piece is moved back and forth in both directions. This is an air blower in which the thin piece is curved or tilted so that the bottom part of the thin piece on the side of the blowing direction is located forward in the direction of movement than the bottom part of the thin piece on the side of the blowing direction. A sixth claim is a means for reciprocating the end portion of the thin piece on the side of the blowing direction, and a means for moving the end portion of the thin piece on the side of the blowing direction in a reciprocating manner so as to be located in the blower of claim (3). and,
This is an air blower that includes a piezoelectric element, and by applying a voltage to the piezoelectric element, the part of the thin piece moves back and forth. A seventh claim includes a piezoelectric element in the means for curving or tilting the thin piece so as to be located in the transmitter of claim (4),
the reciprocating means includes a piezoelectric element; a. By applying a voltage to the piezoelectric element of the bending or tilting means, the flake is curved or tilted, and by curved or tilted, a part or all of the surface of the flake in the moving direction is tilted in the direction of air blowing, b. This is an air blower that causes a thin piece to reciprocate by applying voltage to a piezoelectric element included in the reciprocating means. [Embodiment] [Embodiment of the first claim] Fig. 1 is a perspective view of a blower according to a first embodiment of the first claim, in which one thin piece 1 is moved up and down reciprocatingly, Air is blown in the direction perpendicular to the direction of reciprocating motion. Although the object to be blown is gas such as air, the present invention can also be used for all fluids such as liquids. In the following explanation,
Let's explain it as something that blows air. FIG. 2 shows the operation of the air blower of the first embodiment, and the state of the thin piece I in FIG. 1 viewed from the side is represented by a thin piece 2, and the lotus piece 2 is illustrated over time. The broken line is an auxiliary line for comparing the operating position of thin piece 2. The front end portion of the iI piece 2 on the ventilation direction side and the rear end portion on the ventilation direction side move up and down.

In other words, Figure 2 (a), 11 lower front, 11 lower rear. Figure 2(b)
, 11 lower front, 11 upper rear. Figure 2 (C), front - 1st above, rear 11th above. Figure 2(d), front 11 upper, rear 11 lower. Move to the position 11 below the front and 11 below the rear as shown in Figure 2(e). During the reciprocating movement, the surface of the thin piece 2 in the direction of movement is inclined in the direction of air blowing, and the surface of the thin piece 2 facing the direction of air pushes out air in the direction of blowing air. This blows air. Next, a second embodiment of the first claim will be explained. FIG. 3 shows the state of the thin piece of the second embodiment viewed from the side over time to illustrate its operation. When the second embodiment is not in operation, the flake is flat as in the first embodiment, as shown in FIG. 1, but when it is in operation, it is curved as shown in FIG. 3. During the reciprocating movement in both directions, the surface of the flake in the direction of movement is inclined toward the blowing direction, and the surface of the flake facing the blowing direction pushes out air in the blowing direction. This blows air. In the second embodiment, the surface of the thin piece in the direction of movement is warped, but even if the surface opposite to the direction of movement is warped, air can still be blown. Furthermore, as shown in the third embodiment of FIG. 4, even if the flake is warped in an S-shape or an inverted S-shape, during both reciprocating movements, part or all of the face of the flake in the direction of movement is in the air blowing direction. Air can be blown if the slope is . FIG. 5 shows a fourth embodiment,
This is a case where the warpage of the flake is controlled so that at the beginning of movement in a certain direction, the surface opposite to the direction of movement is warped, but halfway through the movement, the surface in the direction of movement is warped. The flakes move as if they are bouncing back. By controlling the warp in this way, air escape is reduced and air blowing efficiency is improved. The embodiments shown in Figs. 2 to 5 are examples in which the flakes are placed in open air and operated, but in Fig. 6, the flakes are operated in a space closed by walls on the upper and lower sides. This is the fifth example. The operation of the flakes is exactly the same as in the embodiment shown in Figure 2, but by blocking the top and bottom with walls, there is no upward or downward escape of air, improving the efficiency of air blowing. Efficiency can be improved by blocking only the lower or upper walls of the upper and lower walls. Figure tR7 shows a sixth embodiment in which two thin pieces are placed with a partition plate in between, the top and bottom are closed with walls, and the two thin pieces operate exactly the same as the embodiment shown in Figure 2. The embodiment shown in FIG. 7 has twice the air blowing efficiency as the embodiment shown in FIG. 6. The two thin pieces do not need to move synchronously, but if the two thin pieces are connected and moved synchronously, they can be driven by one set of driving means. Although FIG. 7 shows an example in which there are two thin pieces, by operating two or more thin pieces with a partition plate in between, the air blowing effect corresponding to the number of thin pieces can be obtained. Figure 8 shows a seventh embodiment using two thin pieces. Each of the two flakes moves in the same way as the flake in Figure 2, but their timings are shifted by half a cycle.

There is no need for a partition plate to separate the thin sections. Figures 9 and 10 show examples using three and four thin pieces, respectively. Each of the flakes that match gJ is shifted by half a cycle from each other and moves in the same way as the flakes in Figure 2. Figures 2 to 10 are examples in which the moving distance of the flake is equal to the inclination of the flake.
The figure shows an example in which the moving distance is greater than the slope of the thin section. Also, air can be blown even if the inclination of the flakes is greater than the distance traveled. In addition, even in the embodiment in which the upper and lower sides are blocked by walls shown in FIGS. 6 to 11, the thin pieces can be bent and operated as shown in FIGS. 3 to 5 to blow air. Can be done. Furthermore, in the embodiments shown in Figures 8 to 11, ventilation can be provided even if the upper and lower walls are removed. However, the efficiency of air blowing will decrease. [Example of the second claim] The first claim is a blower that pushes out air in the blowing direction, but the second claim is a blower that pushes out air and a. drawing in air from a direction opposite to the blowing direction; b. This article relates to a feeding MH that performs the operation of sending out the drawn air in the blowing direction by utilizing the inertia of motion obtained by the drawn air. FIG. 12 is an embodiment of the second claim, and is a diagram showing the operation of the thin piece 3 over time. Cloud-like figure 4 is flake 3
represents the air drawn in, and the arrow represents the movement of the air. The broken line is an auxiliary line for comparing the operating position of the thin piece 3. In FIG. 12(b), the end portion of the thin piece 3 in the air blowing direction moves upward, and air 4 is drawn into the position before movement on the surface (lower surface) on the opposite side of the moving direction of the thin piece 3. It will be included. The reason why the air is drawn in is because the movement of the thin piece 3 lowers the air pressure at the position before movement, and air is forced in from the direction opposite to the direction of air blowing. In FIG. 12(c), the 12th
As shown in Figure (b), the thin piece 3 is deformed so that the moving speed of the air that is drawn in is not lost but is accelerated, creating an area with lower pressure closer to the direction of the air flow, and drawing in the air. In this way, areas with low gas pressure are created one after another in the direction of air flow, accelerating the drawn air and increasing the inertia of air movement. In Fig. 12(e), the thin piece 3 is bent to create an area of low atmospheric pressure. Thin piece 3 cannot create an area of lower atmospheric pressure on the surface opposite to the direction of movement (lower surface). For this reason, in the next Figure 12(f), the tip of the deflected thin piece 3 on the side in the blowing direction is returned straight, and the air drawn up to the tip of the thin piece 3 is pushed out in the blowing direction as if by hitting. In the state shown in FIG. 12(f), the air with inertia passes through the lower surface of the thin piece 3 and moves in the blowing direction for a while.
Stop the movement and deformation of thin piece 3. This completes a half cycle of the flake's reciprocating motion. Once the air movement has weakened, the next half-cycle operation starting from Figure 12(g) begins. Generally, when air is pushed out, the pushed air tends to diffuse. On the other hand, if you lower the atmospheric pressure and draw in air, it will concentrate in one place and move. For this reason, it is more efficient to move air by lowering the pressure and drawing it in rather than pushing it out. The air blower according to the second claim has good air blowing efficiency whether the thin piece is operated in an open space or in a space closed by walls on the top and bottom. In the above embodiment, the thin piece 3 is warped in FIG. 12(e), but it can also be moved from FIG. 12(d) to FIG. 12(f)i without being warped. However, it is more efficient to bounce it. [Embodiment of the third claim] The third claim is a first method for specifically realizing the embodiments of FIGS. 2 to 12. As shown in FIG. 2, means for reciprocating the end portion of the thin piece 2 on the side in the blowing direction; and means for reciprocating the end portion of the thin piece on the side in the blowing direction;
If each means is operated at a different time, the thin piece 2 will move as shown in FIG. The time lag is made so that the end portion on the side of the air blowing direction is moved before the end portion on the side of the air blowing direction.
However, be careful not to go too far ahead so that the end of the thin piece on the side of the air blowing direction is behind the end of the thin piece on the side of the air blowing direction with respect to the direction of movement. According to the third claim, since the end portion of the thin piece on the side of the air blowing direction and the end portion on the opposite side are reciprocated, as shown in FIGS.
In order to curve the irises as shown in Figures 5 and 12, the flakes must have appropriate elasticity. In addition, in order to make a plurality of thin pieces perform the same operation as shown in FIG. 7, all the thin pieces are connected and reciprocated by a set of means. One set of means consists of a means for driving the end portion on the side in the air blowing direction and a means for driving the end portion on the opposite side. Furthermore, in order to make the two flakes move differently as shown in FIG. 8, two sets of reciprocating means are required. As shown in Figures 9 and 10, when adjacent lamellas move half a cycle apart, every other lamina is connected and driven by two sets of reciprocating means. Next, a specific example will be explained. FIG. 13 shows a first embodiment of the third claim, and FIG.
13(a) is a perspective view of the blower, and FIG. 13(b) is a side view. The Ts piece l1 is supported by two upper support pieces 14 and two lower support pieces 15, and is attached to fixed plates 12 and 13. The support piece 14 is bent toward the fixed plate 12 side or folded back toward the fixed plate 13 side by the drive means 16, so that the welded portion of the thin piece 11 on the side in the air blowing direction reciprocates up and down. The support piece 15 is bent toward the fixed plate 13 side and folded back toward the fixed plate 12 side by the driving means 17, and the end portion of the thin piece 11 on the side of the air blowing direction moves reciprocating up and down. The driving means 16 and 17 operate as follows. a. Drive means 16-1 return, drive means 17-1 return, b. Drive means 1
6-1 return, drive means 17-1 return, C. Drive means 16-1, drive means 17-1 return, d. Drive means 16 - one song, drive means 17 - one song, e. Drive means 16 - one return, drive means 17 - one turn. Return indicates the movement of folding back the support piece, and curve indicates the movement of bending. This action causes the thin piece 11 to move as shown in Figure 2, allowing air to be blown in the direction of air. The fixed plates 12 and 13 are
It serves as the wall in Figure 6. FIG. 14 shows a second embodiment, in which iron pieces 24 and 25 are attached to the thin piece 21 and semi-fixed with a spring. Thin piece 21
The end portion on the side of the air blowing direction is swung up and down by electromagnets 26 and 28, and the end portion on the side of the air blowing direction is swung up and down by electromagnets 27 and 29. Ru. If the thin piece 21 is moved (tfi) so that the end portion of the thin piece 2l on the side of the air blowing direction is located forward when moving in both directions of the air blowing direction, the current l applied to the electromagnets 26 to 29 is The thin piece 21 moves in a second manner and can blow air. FIG. 15(b) shows the third embodiment, in which three sheets are combined radially around a single shaft, and the shaft has 3 to 34 means for twisting the sheets along the circumference of the shaft. There are designated locations. The end portions of the three thin pieces on the side in the air blowing direction are twisted by the twisting means 2, and the end portions on the side in the air blowing direction are twisted by the twisting means 34. By twisting, the flakes move in the circumferential direction. If the twisting means 34 is operated before the twisting means 32, the portion of the thin piece 31 on the side of the air blowing direction is located forward of the end portion of the thin piece 31 on the side of the air blowing direction with respect to the one movement direction. If you look at the blower in FIG. 15(b) from above, you can see that the thin piece 31
teeth! It moves in the same way as i-piece 2 in Figure 2. Therefore, flake 31
You can send 1 with . Since the three flakes are twisted in the same way by the twisting means 32 and 34, air can be blown using the three flakes. If you increase the number of thin pieces attached to the shaft, the amount of air blown will also increase. Furthermore, Fig. 15(a)
Insert the shaft to which the thin piece 31 of FIG. 15(b) is attached to the simple 35 to which the partition plate 36 as shown in FIG. 15(C) is attached.
), the configuration is the same as the thin strips separated by partition plates shown in Figure 1It7, and the efficiency of air blowing is improved.
The twisting means 33 shown in FIG. 15(b) is a means for moving the flakes so as to bounce them as explained in FIG. Also, as shown in Fig. 12(C), the central part of the thin piece is curved to draw in air. Initially, when the twisting means 34 starts twisting, the twisting means 33 does not operate, but once the twisting means 34 has finished twisting, the twisting means 33 rotates the twisting means 34 before the twisting means 32 starts its operation. It can be twisted up to the rotation angle. Note that the term "means for reciprocating the end portion" in the third claim does not mean that the point of application of the force exerted by the means on the thin piece is at the end portion of the thin piece. This means that the movement that occurs in the cod joint due to the force exerted by the means is the force that causes the end portion to move back and forth. Therefore, even if, for example, the upper support piece 14 and the lower support piece 15 of the first embodiment are not located at the ends of the thin piece 11 but are slightly closer to the center a than the ends, the air blowing effect can still be obtained. Embodiment] The fourth claim is a second method for specifically realizing the embodiment of FIGS. 2 to 12. A fourth claim includes means for reciprocating the thin piece and means for curving or tilting the thin piece, and the means for curving or tilting causes a part or all of the surface of the thin piece in the moving direction to be tilted in the blowing direction. It is a sending JIL device. In the third claim, the parts of the thin piece to be reciprocated are two parts, the end part on the side of the air blowing direction and the end part on the side of the air blowing direction, but in the fourth claim, it is one part which is not particularly defined. be. For example, the movement of the thin piece 2 in FIG. 2 is fi! on the side of the air blowing direction. This can be achieved by tilting the thin piece 2 with an M diagonal means while reciprocating the parts, or by tilting the thin piece 2 with a tilting means while reciprocating the end part on the side of the air blowing direction. Furthermore, this can be achieved by reciprocating the central portion of the thin piece 2. FIG. 16 shows a first embodiment of the fourth claim, in which the central portion of the thin piece 41 is supported by two supporting pieces 43. The support piece 43 is attached to the fixed plate 42 and the driving means 44
The thin piece 41 is bent toward the fixing plate 42 side or folded back toward the thin piece 4l side, so that the central portion of the thin piece 41 reciprocates up and down. The driving means 45 is a means for tilting the thin piece 41. When moving the iI piece 41 upward, the driving means 4
5, the thin piece 41 is tilted toward the air blowing direction. When moving the iI piece 41 downward, tilt the thin piece 4] toward the air blowing direction. In other words, the end portion on the side of the air blowing direction is tilted so that it is located forward when moving in both directions of the air blowing direction. By this method, the thin piece 41 is the same as the thin piece 2 in FIG. 17th
47 in figure (a) is a thin elastic metal piece, and 48
is a piezoelectric element. The piezoelectric element 48 has metal pieces 4 at both ends.
It is fixed to 7 using methods such as spot welding. As is well known, piezoelectric elements expand and contract when voltage is applied. When a voltage is applied to the piezoelectric element 48 in Fig. 17, the piezoelectric element expands and contracts, and the metal piece to which both ends of the piezoelectric element are fixed becomes as shown in Fig. 17(b) and Fig. 17(C). Curved. The combination shown in FIG. 17 is used as a means for curving the thin piece, or the piezoelectric element is made of an elastic metal piece, and the piezoelectric element is stuck on the thin piece. FIG. 18 shows a second embodiment of the fourth claim using a curved flake, and is a transmitter similar to the embodiment described in FIG. 15. In FIG. 18, three thin pieces are combined radially around a single shaft, and a means 54 for twisting the thin pieces 53 is provided at one point on the shaft. When the thin piece 53 is twisted by the twisting means 54, the thin piece 53 moves reciprocatingly when the blower shown in FIG. 18 is viewed from above. At the same time as the twisting operation, the thin piece 5 is moved so that the end portion on the side of the air blowing direction is positioned forward with respect to the reciprocating movement in both directions on the side of the air blowing direction.
If 3 is curved, it will move similar to the flake in Figure 3.
Therefore, air can be blown using the thin piece 53. Increasing the number of the three thin plates shown in Fig. 18 will increase the amount of air flow, and if they are combined with fill 35 in Fig. 15 (a), the efficiency of air blowing will increase. The means for curving or tilting the thin piece according to the fourth claim,
As a result, the edges of the flakes are moved. For example, as in the embodiment shown in FIG. 16, the driving means 45 tilts the thin piece 41 and simultaneously moves the end portion of the thin piece 41 on the side of the air blowing direction. Therefore, from a macroscopic perspective, the blower in claim jfr4 is included in the third claim. However, the movement directly caused by the force exerted by the means is a movement that tilts the flakes, and this difference is a feature of the fourth claim. This is the third method for specifically implementing the embodiments shown in FIGS. 2 to 12. The fifth claim is a means for moving and curving or tilting the thin piece. A fourth claim is a means for reciprocating the thin piece, and a means for curving or tilting the thin piece, the means for driving the thin piece, and the means for reciprocating the thin piece and the means for curving or tilting the thin piece, They were physically separated. However, in the fifth claim, the means for moving and the means for curving or tilting cannot be physically separated, and are written as a unit for moving and curving or tilting. This point is the difference between the fifth claim and the fourth claim. A perspective view of the blower according to the first embodiment of the fifth claim is shown in the first embodiment.
It is shown in Figure 9. The side surface of the thin piece 201 in FIG. 19 protrudes like an ear. This part is called the ear part, and as shown in Fig.
Add the sign 2. The ear part 202 is connected to the support piece 203 and the support piece 2.
It is supported by 04. The support pieces 203 and 204 are the first
It is composed of a metal piece and a piezoelectric element as shown in Figure 7, and can be electrically bent. The end of the support piece 203 in the ventilation direction and the support piece 2
The end of 04 opposite to the air blowing direction is fixed. Therefore, when the support pieces 203 and 204 are bent, the ear portion 202 moves up and down. The support piece 203 is more elastic than the support piece 204, and when an external force is applied to the support piece 203 in an electrically curved state, the support piece 203 deforms and curves due to the force. FIG. 20 shows the operation of the blower of the first embodiment;
The ears 202 and support pieces 203 and 204 shown in the figure are shown as viewed from the side, and are illustrated over time. The broken line is an auxiliary line for comparing the position of the ear portion 202. In FIG. 20(a), both the support piece 203 and the support piece 204 are electrically curved downward to the same degree, and the ear portion 20
Hold 2 horizontally. Therefore, the thin piece 201 is also kept horizontal. From FIG. 20(a) to FIG. 20(d), “holding piece 20
3 continues to be added with the same message as in Figure 20(a). On the other hand, although the supporting piece 204 is curved downward by 1 in FIG. 20(b) - As shown in FIG. 20(d), the support piece 204 is curved toward the top. Therefore, the support piece 203 is forcibly deformed by the support piece 204, and curves upward as if being dragged by the support piece 204, as shown in FIGS. 20(b) to 20(d). The ear part 2C2 supported by the support pieces 203 and 204 moves from bottom to top while operating at an inclination angle determined by the mgR bending force of the support piece 204 and the mechanical elasticity I of the support moon 203. Moving. Therefore, the thin piece 201 also moves upward while remaining inclined in the air blowing direction. The thin piece 201 is shown in FIG. 11(a).
It moves like this from to (d). In FIG. 20(e), an electrical signal is applied to the support piece 203 to curve it upward, and the support piece 203 curves to the same extent as the support piece 204. Therefore, the ears 202 are kept horizontal, and the thin pieces 201
is also kept horizontal. This completes the half-cycle operation, and then the remaining half-cycle operations shown in FIGS. 20(f) to 20(i) are performed. The ii piece 201 moves as shown in FIG. 11 and can blow air in the direction of air. In the above method, the supporting piece 204 performs both the movement and tilting of the ear portion 202, and the moving means and the tilting means cannot be separated. Therefore, the embodiment shown in FIG. 20 does not fall under the method of separating the moving means and the tilting means according to the fourth claim. If you do not forcibly bend the support piece 203,
If the supporting piece 203 is bent and operated electrically a little later than 4, the supporting piece 203 becomes a means for reciprocating the end portion of the thin piece on the side of the airflow direction, and the supporting piece 204 moves the end portion of the thin piece on the side of the airflow direction. This is a means for reciprocating the end portion, and is the same method as in the third claim. This method even works! l is (a) in Figure 20
~(1) is exactly the same. That is, in the structure shown in FIG. 19, depending on the method of electrically driving the support pieces 203 and 204, the third claim or fi5 claim can be obtained. Note that the support piece 203 is required to be more elastic than the support piece 204,
In addition, since the support piece 203 needs to expand and contract in the direction of air flow, the part of the support piece 203 near the fixed position on the side of the air flow direction and the connection part with the ear part 202 are bent in a wavy manner to make it flexible. Let. Although the supporting piece 204 in FIG. 20 is an example of a piezoelectric element, it can be driven by any other element as long as it can be electrically bent. Also, the support piece 20
3 is a. has elasticity; b. An element with two stable points,
If so, it can be driven by other elements. For example, an elastic metal piece to which a magnetic element is attached may be used as the support piece (designated 203A), and electromagnets may be attached to the top and bottom of the thin piece to serve as driving means for the support piece 203A. The lower electromagnet attracts the support piece 203A downward. Second
In Figure 0(e), the upper electromagnet attracts the support piece 203A upward. In FIGS. 20(a) to 20(d), the supporting piece 203A is
moves upward as if being dragged by the support piece 204. Therefore, the ears 202 move from bottom to top while remaining tilted in the wind direction, and the thin pieces move in the same manner, allowing air to be blown. Also, by using mechanical means such as springs, we can create a mechanism that is stable at the upper and lower ends and returns to its previous position in the middle.
It may also be used as a support piece (designated 203B). The supporting piece 203B is dragged up and down by the supporting piece 204. In FIG. 20(a), the support piece 203B is in a stable position at the lower end. The support piece 203B is shown in FIGS. 20(b) to 20(
If it is pulled upward up to d), it will try to return downward, but if it is pulled upward any further, it will stabilize. In this way, mechanical means can also perform the same function as the support piece 203. FIG. 21(a) shows the second embodiment, in which 21
Attach the bending means of 5 and 216, and
As shown in Figure 2, this is an example in which the flakes are made to bounce. v. FIG. 21(b) shows a third embodiment in which a bending means 222 is attached to the ear portion and the thin piece is bent in the same way as in FIG. 21(a). 1R2 and the third embodiment, as well as the first embodiment, the support piece (second
While applying an electric signal to bend the support pieces (213 in the example 1IE2 and 223 in the third example) in a certain direction, Example 224) is electrically bent in the other direction to forcibly change the curvature of the support piece on the side of the air blowing direction. Figure 21 (c
) is similar to FIG. 18, in which a thin piece 231 attached to a shaft is twisted by twisting means 234 and 235,
Twist and rotate in the circumferential direction. The attachment portion 232 of the thin piece 231 to the shaft and the intermediate portion 233 are portions that have elasticity against twisting in the circumferential direction. The twisting means 234 of the fourth embodiment is the support piece 20 of FIG.
3, and the twisting means 235 corresponds to the support piece 204. While twisting the wind blowing direction side twisting means 234 in a certain direction,
The twisting means 235 on the side of the air blowing direction is electrically twisted in the other direction.
The attaching portion 232 of the thin piece 231 to the shaft is twisted and rotated by being dragged by the twisting means 235.
If you look at it from above, it will move at an angle. [Embodiment of the sixth claim] The sixth claim is an air blower in which a piezoelectric element is used for the two reciprocating means of the third claim. Figure 22 (b
) is the first embodiment of the sixth claim, in which an assembly 61 of four thin pieces combined in a U-shape is supported by supporting pieces 62 and 63 containing piezoelectric elements. The upper end of the support piece 62 and the lower end of the support piece 63 are fixed. When a voltage is applied to the support pieces 62 and 63, the support pieces curve and the thin piece assembly 61 moves up and down. The support piece 62 moves up and down the end portion of the thin piece assembly 6I on the side of the air blowing direction, and the support piece 63 moves up and down the end portion of the thin piece assembly 61 on the side of the air blowing direction. If the end portion on the side of the air blowing direction is moved in advance of the end portion on the side of the air blowing direction, air can be blown by the aggregate 61 of thin pieces. Three partition plates 64 combined in a U-shape as shown in FIG. 22(a) are inserted between each thin piece, and the thin pieces shown by solid lines and the partitions shown by broken lines are inserted as shown in FIG. 22(c). If the plates are alternately combined, the result will be the same as the combination of thin pieces and partition plates shown in Figure 7, and the efficiency of air blowing will increase. FIG. 23 is another example of the support piece shown in FIG. 22(b).
Figure (a) is an example of a curved support piece. Figure 23(b)
is an example of a plate-shaped support piece. The central portion of the support piece 71 and the thin piece assembly 61 are connected by a method such as spot welding. Therefore, the support piece 71 can be curved. Support pieces 72 to 74 can also be curved in the same way as support piece 71. Figure 23(C) is an example of a rectangular support piece. Each support piece includes a piezoelectric element, and when a voltage is applied, it curves and moves the thin piece assembly 61 up and down. A partition plate 64 is inserted between each thin piece. Part of the support piece shown in Figure 23 can be omitted. For example, the support pieces 67 and 69 in FIG.
It can be omitted if the driving force of the supporting piece is strong. FIG. 24 is an embodiment of 1R2 of the sixth claim, in which the thin piece 81
Plate-shaped support pieces 82 and 83 are attached to the. 82
The support pieces 83 and 83 include piezoelectric elements, and when a voltage is applied,
It curves and moves the thin piece 81 up and down. The support piece 82 moves up and down at the end portion on the side of the air blowing direction, and the support piece 83 moves up and down on the t# portion on the side of the air blowing direction. The end portion of the thin piece 81 on the side of the ventilation direction is connected to 13i on the side of the ventilation direction.
If you move it ahead of 8FM, you can blow air with Lotus Piece 8]. Also, support pieces containing piezoelectric elements are attached to the thin pieces 84 and 85, similarly to the thin piece 81. Each thin piece can be moved up and down individually by curving each supporting piece. If the voltage applied to the support pieces attached to the three thin pieces is individually controlled so that the three thin pieces move in the same way as the three thin pieces shown in FIG. The blower shown in the figure can blow air efficiently.Since the thin pieces 81 and 85 move in the same way, they can be connected and driven by a set of support pieces, but in the embodiment shown in FIG. force)
A supporting piece is provided for each thin section. [Embodiment of the seventh claim] The air blower according to the seventh claim includes a piezoelectric element in the means for curving or tilting the thin piece and the means for reciprocating the thin piece, and the thin piece is moved by applying a voltage to the piezoelectric element. A part or all of the surface in the direction of movement of the thin piece is tilted in the direction of the air flow to cause the thin piece to reciprocate. As is clear from the explanation of FIG. 17, the piezoelectric element can be formed into a thin flat plate shape, and even when combined with a thin piece,
The external size does not become large at all. Therefore, the transmitter can be made smaller. FIG. 25(a) shows a first embodiment of the seventh aspect, in which a thin piece 9 of a bending means 93 is supported by a support piece 92, and the tip of the support piece 92 is fixed. The support piece 92 is a:& movement means, and the support piece 92
contains a piezoelectric element, and when a voltage is applied to the support piece, it bends. FIG. 25(b) is a diagram of this state viewed from the direction of air flow, and the lotus piece 91 moves back and forth as shown by solid lines and broken lines. The bending means 93 is made of a piezoelectric element, and when a voltage is applied to the bending means 93, the thin piece 91 bends up and down as shown in FIG. 25(C). Air can be blown by controlling the voltage applied to the support piece 92 and the bending means 93 to move the thin piece 91 as shown in FIG. FIG. 26(a) shows a second embodiment in which a bending means 95 attached to a thin piece 91 is supported by a support piece 94.
The support piece 94 includes a piezoelectric element as in the first embodiment, and causes the bending means 95 to reciprocate. The bending means 95 is made of a piezoelectric element and bends when a voltage is applied. Since the thin film 91 is creased, when the bending means 95 bends, the thin film 91
is inclined. By controlling the voltages applied to the support piece 94 and the bending means 95 and moving the thin piece 91 as shown in FIG. 2, the length can be increased to 4 m. Although the curving means 95 is attached to the front surface of the thin piece 91, it may also be attached to the back surface. In FIG. 26(b), similarly to FIG. 26(a), the supporting piece 96 is moved back and forth, and the thin piece 91 is tilted by the bending means 97. The thin piece 91 shown in FIG. 26(b) does not have a crevice, but a pedestal is sandwiched between the bending means 97 and the thin piece 91, making it tiltable. FIG. 26(C) shows an example in which the support piece 98 is shaped like a single plate. The support piece 98 is curved vertically in an arc shape. 1R26 figure (
d) is an example in which the support piece 100 is installed at an angle. FIG. 26(e) is an example in which the mounting number is reduced by bending the support piece 102. By mounting the support piece 102 in a curved manner, a pedestal becomes unnecessary. By applying a voltage, the support piece 10
By making the warp of 2 more curved or returning the warp to a straight line, the thin piece 91 moves back and forth. The bending means 103 is molded integrally with the thin piece 91. Since the thin piece 91 is cut with a fissure, the means 10 for bending the thin piece 91
3, the thin piece 91 becomes inclined. Each of the supporting pieces and the bending means shown in FIGS. 26(b) to (e) includes a piezoelectric element, and when a voltage is applied, the bending unit bends once! The embodiments shown in FIGS. 25 and 26 are examples in which one thin piece is driven, but as shown in FIG. 25 or 26.
By driving with the support piece shown in the figure and the means for curving,
Air blowing efficiency can be increased. Also, by stacking several thin pieces and moving each thin piece by shifting the adjacent thin pieces by half a period as shown in Figures 8 to 10,
The air volume can be increased. Figure 1R27 is an example in which the sixth and seventh claims are implemented at the same time, and the support piece 1
12 and the support piece 113, as explained in the sixth claim,
The end portion of the thin piece 111 on the side of the air blowing direction and the end portion on the side of the air blowing direction are caused to reciprocate. The means 114 for bending Wl is the thin piece 11
1 to curve the thin piece 111. The support pieces 112 and 113 contain piezoelectric elements, and the bending means 114 are made of piezoelectric elements.

The support piece 113 is driven in advance of the support piece 112.

Further, the warpage of the lotus piece 111 is controlled by a means 114 for curving so that at the start of movement in a certain direction, the surface opposite to the movement direction of the lotus piece 111 is warped, and in the middle of the movement, the surface in the movement direction is warped. ．． By curving in this way, the thin piece 111 makes a bouncy movement as shown in FIGS. 5 and 12, improving the efficiency of air blowing. Figure 1R28 (a) is an example in which the support piece and thin piece in Figure 27 are made of one metal piece, with 122 and 123 placed on metal piece 121.
A piezoelectric element is attached, and both ends of the piezoelectric element are fixed to metal pieces. Piezoelectric elements 124 and 125 are attached to the thin piece 121,
Make the thin piece 121 bounce. It is also possible to attach two or more means for curving in this way and to curve the thin piece at two or more places. Moreover, FIG. 28(b) is an example in which the embodiment of the sixth claim shown in FIG. There is. Furthermore, as in FIG. 28(a), the thin piece 12
6, piezoelectric elements 129 to 1
31 is attached. The piezoelectric elements 129 to 131 are arranged in a staggered manner, allowing fine control of the curvature of the thin piece 126.

By constructing the blower with a single piece of metal and a piezoelectric element as shown in Figure 28, manufacturing becomes simple and inexpensive. [Effects of the Invention] The first claim is a blower that uses thin pieces to push air in the blowing direction, and does not require regular replacement because it does not use bearings like conventional fans. The second claim is an air blower that uses thin pieces to draw in air from the direction of the air blowing direction, and can blow air more efficiently than the air blower according to the first claim even when used in an open space. The third claim is a first method for realizing the first and second claims. The fourth claim is a second method for realizing the first claim and claim tR2. The fifth claim is a third method for realizing the first and second claims. A sixth claim is an air blower in which a piezoelectric element is used as a means for reciprocating the thin piece according to the third claim. A seventh claim is an air blower in which a piezoelectric element is used as the means for reciprocating the thin piece and the means for curving or tilting the thin piece according to the fourth claim. Since the present invention sends out air like a pulsating flow, if it is used in a narrow space closed by walls on the top and bottom and connected in series in two or more stages, backflow of air will be reduced and air can be blown with high wind pressure. ．． Further, since periodic replacement is not required, for example, when cooling a printed circuit board of an electronic device, the air blower of the present invention may be soldered directly to the printed circuit board to make it non-replaceable. In this case, provide a terminal on the bottom of the blower for both mounting and power supply.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the air blower according to the first embodiment of the first claim, FIG. 2 is a diagram showing the operation of the air blower according to the first embodiment, and FIG.
11 are diagrams showing the operation of the second to tenth embodiments of the first claim, FIG. 12 is a diagram showing the operation of the second claim, and FIG. 13 is a diagram showing the operation of the second claim. In the first embodiment, FIG. 13(a) is a perspective view of the blower, and FIG. 13(b) is a side view. FIG. 14 shows a second embodiment of the third claim, FIG. 15 shows a third embodiment of the third claim, and FIG. 16 shows a first embodiment of the fourth claim. Figure 16(a) is a perspective view of the blower, and Figure 16(b) is a view from the side. FIG. 17 is a diagram illustrating an example of a means for curving, and FIG.
The figure explains the operation of the second embodiment of the fourth claim, FIG. 19 the first embodiment of the fifth claim, and FIG. 20 the operation of the first embodiment of the fifth claim. Figure, Figure 21 is! The second to fourth embodiments of claim 5, FIG. 22 is the first embodiment of claim 6, and FIG. 23 is another example of the support piece of the embodiment of FIG. The figure shows the second embodiment of the sixth claim, FIG.
a) shows the first embodiment of the seventh claim, FIGS. 25(b) and 25(C) show the embodiment as viewed from the air blowing direction side and from the side, and FIG. 26 shows the first embodiment of the seventh claim. 7 claims! Embodiments 2 to 6, FIG. 27 shows an example in which the sixth and seventh claims are implemented simultaneously, and FIG. 28 shows an example in which the thin piece and the supporting piece are made of thin metal pieces. Ru. 1-3, 1], 2], 31, 4], 53, 81, 8
4, 85, 91, I 11 121, 126
, 201, 211, 221, 231--one thin piece 4--one air 12, 13, 22, 23, 42--one fixed plate 14, 15,
43, 62, 63, 66-69, 71-74, 76-7
9, 82, 83, 92, 94, 96, 98, 100, 1
02, 112, 113, 203, 204 - Support piece 16, 17, 44, 45 - Drive means 24, 25 - Iron piece 26 to 29 - Electromagnet 32 -
34, 54, 234, 235-One twisting means 35-One tube
36, 64-one partition plate 47-one metal piece 48, 122-125, 127-131, 213-21
6, 222 to 224 - Piezoelectric element 61 - Thin piece assembly 93, 95, 97, 99, 101, 103, 114 - Curving means 202, 212 - Ear portion 232 - Mounting portion 233
-1 middle part straw f figure 2 ■ (α) (1)) (daino (re) (91 (bl (ku) [F)) stem 7 figure Akira?

Claims (7)

[Claims] (1) In a blower that reciprocates a thin piece that can be curved or tilted and blows air in a direction perpendicular to the direction of the reciprocating movement, the thin piece moves in both directions. An air blower in which a part or all of the directional surface is inclined in the direction of air flow. (2) In an air blower that sends air in a direction perpendicular to the direction of the reciprocating motion by reciprocating a thin piece that can be bent or tilted, a. By tilting, on the surface opposite to the direction of movement of the flake, areas of low pressure are created one after another from the part of the flake on the opposite side to the blowing direction to the part on the side of the blowing direction, and from the direction opposite to the blowing direction. Gas is drawn in and accelerated to give it inertia of motion; b. The inertia of the drawn gas causes the gas to be sent out in the direction of the air flow; c. The flakes complete their reciprocating movement in one direction and begin turning in the opposite direction. An air blower that waits until the drawn-in gas is sent out in the blowing direction before starting movement. (3) In the air blower according to claim (1) or (2), means for reciprocating the end portion of the thin piece on the side in the blowing direction, and means for reciprocating the end portion of the thin piece on the side opposite to the blowing direction. , and is opposite to the air blowing direction so that when the thin piece moves back and forth in both directions, the end portion of the thin piece on the opposite side to the air blowing direction is located in front of the end portion on the side of the air blowing direction with respect to the moving direction. An air blower in which the side end portion moves ahead of the side end portion in the air blowing direction. (4) The air blower according to claim (1) or (2), further comprising means for reciprocating the thin piece and means for curving or tilting the thin piece, so that when the thin piece moves in both directions, the thin piece An air blower in which the thin piece is curved or inclined so that the end portion on the opposite side to the air blowing direction is located forward in the direction of movement than the end portion on the side in the air blowing direction. (5) The air blower according to claim (1) or (2), further comprising means for moving and curving or tilting the thin piece, and when the thin piece moves in both directions, the blowing direction is opposite to the blowing direction of the thin piece. An air blower in which the thin piece is curved or inclined so that the end portion on the side is located forward in the direction of movement than the end portion on the side in the blowing direction. (6) In the blower according to claim (3), the means for reciprocating the end portion of the thin piece in the blowing direction side and the means for reciprocating the end portion of the steel sheet opposite to the blowing direction include piezoelectric An air blower that includes a piezoelectric element and causes the end portion of the thin piece to reciprocate by applying a voltage to the piezoelectric element. (7) In the air blower according to claim (4), the means for curving or tilting the thin piece includes a piezoelectric element, the means for reciprocating the thin piece includes a piezoelectric element, and a. By applying , the flake is deformed into a curve or tilted, and by deforming the flake into a curve or tilted, a part or all of the surface of the flake in the direction of movement is tilted in the direction of air blowing, b. Reciprocating motion An air blower that causes a thin piece to reciprocate by applying a voltage to a piezoelectric element included in the means for causing the thin piece to reciprocate.