JPH01152978A - Dielectric polarization motor - Google Patents

Abstract

PURPOSE:To produce rotary force, by utilizing force produced based on dielectric polarization occurring in a dielectric inserted between electrode boards. CONSTITUTION:A pair of semi-circular electrode boards 1, 2 are faced each other in parallel through a predetermined distance and a semi-circular dielectric board 3 is placed between them. The dielectric board 3 is secured at the central section to a rotary shaft 4 and held rotatably in a noncontact manner with the electrode boards 1, 2. Upon application of DC voltage from a DC power source 5 between the electrode boards 1, 2, electric field is formed between the electrode boards 1, 2 to induce polarization in the dielectric board 3. If the dielectric board 3 is placed with a predetermined rotary angle between the electrode boards 1, 2, torque T for pulling the dielectric board 3 between the electrode boards 1, 2 is produced in the shaft 4. Consequently, a motor where rotary force is produced only through the electric field and the dielectric board 3 functions as a rotor can be provided.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dielectric polarization motor that can be applied as a general industrial power source, and more specifically relates to a dielectric polarization motor that can be applied as a general industrial power source, and more specifically to a dielectric polarization motor that is applicable to a dielectric polarization motor that is applied as a general industrial power source. The present invention relates to a dielectric polarization motor that extracts rotational force as rotational force.

[Prior Art] Conventional DC motors and AC motors are both configured to extract the force generated based on Fleming's two-finger law, that is, the electromagnetic force acting on a current-carrying conductor interposed in magnetic flux, as rotational force. It is what was done.

[Problems to be solved by the invention] As mentioned above, conventional electric motors use electromagnetic force, so it is necessary to wind the stator and rotor, resulting in a large and complicated structure. , there is a risk of causing heat generation and induction problems. As an electric motor that does not have the drawbacks of conventional electric motors, it is possible to consider an electric motor that utilizes force generated based on a dielectric polarization phenomenon that occurs in a dielectric material due to an electric field. However, there are still no rotary electric motors that use only electric fields.

Therefore, an object of the present invention is to provide a rotary dielectric polarization motor that uses only an electric field.

[Means for Solving the Problems] In order to solve the above problems and achieve the object, the present invention takes the following measures. That is, electrode plates are arranged in parallel and are provided to generate an electric field in opposing regions, and electrode plates are rotatably interposed between the electrode plates and are provided to generate force based on the dielectric polarization phenomenon caused by the electric field. The electrode plate is provided with a dielectric plate and a means for periodically applying a voltage to each of the electrode plates in accordance with the rotation angle of the dielectric plate.

[Operation] By taking such measures, it becomes possible to realize a dielectric polarization motor in which rotational force is generated only by an electric field and the dielectric plate rotates as a rotor.

[Embodiment] FIGS. 1(a) and 5(b) to FIG. 5(a) and (b) are diagrams showing the basic configuration (principle) of an embodiment of the present invention. The operating principle of the dielectric polarization motor of the present invention will be explained below with reference to FIGS. 1(a) and 5(b) to FIG. 5(a) and (b). As shown in FIGS. 1(a), (b) and 2, a pair of semicircular electrode plates 1°2 are arranged parallel to each other with a predetermined distance apart,
A semicircular dielectric plate 3 is interposed between them. This dielectric plate 3 has its center fixed to a rotating shaft 4, and is rotatably held in a non-contact state with the electrode plates 1 and 2. Therefore, when a DC voltage V is applied from the DC power supply 5 between the pair of electrode plates 1.2, an electric field is formed between the electrode plates 1.2,
Polarization occurs in this dielectric plate 3. Thus, dielectric plate 3
The electrode plate 1 is rotated at the rotation angle as shown in Fig. 1(b) and Fig. 2.
．． If the dielectric plate 3 is interposed between the electrode plate 1 and the
, 2 is generated on the shaft 4. This torque T
occurs based on the principle shown below.

As shown in FIGS. 1(a) and 2, the end surface S of the electrode plates 1 and 2 is taken as the angle reference point, and the rotation angle of the dielectric plate 3 at this time is θ, the electrode plate 1, Let the fan-shaped angle of 2 be φ (in the figure, it is φ−πrad). Moreover, the electrode plate 1,
The inner radius of 2 is ``1, the outer radius is r2 (-dielectric plate 3)
, the distance between the electrode plates 1 and 2 and the thickness of the dielectric plate 3 are d (actually, in order to avoid friction between the surfaces, the thickness of the dielectric plate 3 needs to be thinner than the distance between the electrode plates, (Here, to simplify the explanation, we assume that the dimensions are the same).

The electrode plates 1 and 2 and the dielectric plate 3 form a kind of plate capacitor, whose capacitance is given by the ratio of the total free charge between the electrode plates to the voltage between the electrode plates and the rotation angle θ. . When a voltage V is applied to the electrode plates 1 and 2, the areal density of free charges is ε8・εO” V/at an angle between 0 and 9.
When the d s angle is between θ and φ, it becomes εo−V/d. However, εS is the relative permittivity of the dielectric plate 3, and ε0 is the permittivity of vacuum. Therefore, the total charge Q(θ) on electrode plates 1 and 2
is Q(θ)-((εS・εo-■) ・θ(r22-rl2)/2d) +((εo-■)・(φ-θ)・(r22-rl2)/2d) = [ ((εS・ε0) conflict θ (r 22− rl 2 ) /2
dl+(ε0 (φ−θ) ・(22 − r 1 2 ) / 2 d
) Co-V Therefore, the capacitance C-C(θ) is C(θ)-(εS・ε.

・θ(r22− rl 2)/2d) 10 (ε 0 ・ (φ −θ )・ (r22
−rl”)/2dl.

From the above, the torque T generated on the rotating shaft 4 can be expressed as
ε5-1) -(r22-rl 2) ・V2/4d-(1). In other words, the torque T around the rotation axis generated by the dielectric plate
is determined using the law of conservation of energy.

When the voltage V is constant, the minute rotation angle is Δθ, and the change in capacitance is ΔC. The work done by the electrical system to keep the voltage V constant is V2ΔC(-W), and the addition of the rotation of the shaft and the mechanical work T・Δθ is the total electrostatic charge as a capacitor in the electrode-dielectric system. Since the energy change is v2ΔC/2, T・Δθ+v2・ΔC−v2・Δc/2, . T.
Δθ−−V2 ・ΔC/2−W Therefore, the torque T acting on the dielectric plate is obtained by partially differentiating W with respect to θ: T−−9W/aθ −+V2−aC(θ)/29 θ Note that T・θ+W −0 here9CCθ)/a θ 閤 a/a θ * [εs a εo” θ (F2 2
rl ”) / 2d co + a / 9 θ [ε
0 ・ (φ −θ )”(F2” r+
2)/2d cozen ε. From 豐 (εs −1) ・(F2 2 rl 2 )/2d or more, T-V2 ・ε.・(ε5−1)′(F22−r)2)/4d=ε0φ(ε5−1)・(F22−F12)・v2/4d to obtain the associated formula.

Since the dielectric constant ε5>1, it becomes Too. Therefore, torque T is generated in the (+) direction (the direction in which the dielectric 3 is drawn between the electrode plates 1 and 2), and the dielectric plate 3 and the rotating shaft 4 holding it rotate. Furthermore, from equation (1), when the rotation angle θ of the dielectric plate 3 is 0, θ, and φ, the value of the torque T takes a constant value regardless of the rotation angle θ. When φ becomes θ, the direction of the torque T changes in the (-) direction. Therefore, if the motor is to be rotated in a fixed direction, it may be controlled as shown in FIGS. 3(a) and 3(b).

(a) When the rotation angle θ of the dielectric plate 3 is in the range of O x θ x φ, a voltage V is applied to the electrode plates 1 and 2 to generate a torque T, and the rotation axis 4 is moved in the (+) direction. Rotate.

(b) When the rotation angle of the dielectric plate 3 is in the range of φ and θ, the voltage V is not applied to the electrode plate 1.2, and the rotation axis 4 is rotated (-
) does not generate a torque T that causes reverse rotation in the direction. Therefore, the rotating shaft 4 has an inertia due to the torque T in (a) (+)
It continues to rotate in the direction shown in FIG. 2, and returns to state (a). By repeating the above operations (a) and (b), the rotating shaft 4 continues to rotate in a fixed direction.

A supplementary explanation will be given of the reason why torque T is generated.

In the above explanation, the electrode 1.2 and the dielectric plate 4 are both shaped like semicircular plates, but basically they are flat plates, which are often cited in electromagnetic field study textbooks. You can think of it as replacing the force acting on the dielectric plate inside the capacitor with a disk.

FIG. 4 and FIGS. 5(a) and 5(b) are diagrams showing the concept. In FIG. 4, 11 and 12 are rectangular electrode plates arranged in parallel, and 13 is a rectangular dielectric plate slidably inserted between them.

When a constant voltage V is applied to the electrode plates 11 and 12 constituting the plate capacitor, the insertion amount x of the dielectric plate 13 is
A constant force F is generated regardless of the magnitude of the force F, which is drawn between the electrodes. Note that when the voltage V changes, the electrode plate 1
1.12 The charge on the surface changes and the force F generated is the insertion ikx
Depends on. Naturally, the dielectric plate 13 fills the space between the electrode plates 11, 12 and no force F is generated.

The principle when the above action is replaced by a combination of a disk-shaped electrode plate and a dielectric plate is as follows.

As shown in FIG. 5(a), the distance R1, R from the center point 0
Parallel electrode plates 21°22.23 are arranged at positions 2 and R3, and dielectric plates 31 and 32°33 are interposed between these parallel electrode plates 21°22.23, respectively. These dielectric plates 31, 32, and 33 are held rotatably about the center point 0. In this state, when a voltage V is applied to the electrode plates 21, 22, and 23, each dielectric plate 31, 32, and 33 has a voltage of <Fl, F2, and F3 as shown by the arrows in the figure.
A force is generated. However, the dielectric plate 31°32.33
can only be moved around the 0 point, so
Force Fl, F2. F3 is torque Tl, T2. Converted to T3. The above electrode plate 21°22.23 and dielectric plate 31
, 32. If we collect countless combinations of 33, we get Figure 5 (b
) A combination of fan-shaped electrode plate 20 and dielectric plate 30 can be obtained.

FIG. 6(a)(b) to FIG. 8(a)(b) are diagrams showing specific configuration examples of this embodiment.

FIGS. 6(a) and 6(b) are diagrams showing a dielectric polarization motor constructed based on the above-mentioned operating principle, where (a) is a longitudinal cross-sectional view;
b) is a sectional view taken along the line A-A in FIG. In this example, electrode plates 41.42° 43.44 and 51.52
．． 53. divided into 4 parts, electrode plates 41 and 51.42
, 52, 43, 53, 44, and 54 constitute parallel electrode plates corresponding to the pair of electrode plates 1 and 2 shown in FIGS. 1 and 2). are mechanically coupled at their outer peripheries with an insulator 60, and are fixed in a state where they are electrically insulated from each other. Lead terminals 61, 62, 63, and 64 are connected to each electrode plate 1°2. Insulator 6
0 is further fixed to the inner peripheral surface of the disc-shaped housing 70. A rotating shaft 71 is attached to a bearing 72 at the axial center of the housing.
, 73. In this embodiment, two dielectric plates 80 having a sector shape of 1/4 circle 81 and 82 are arranged axially symmetrically. This dielectric plate 80 is connected to the rotating shaft 71
mechanically fixed.

FIGS. 7(a) to (c) and FIGS. 8(a) to (c) are operation explanatory diagrams. When the electrode plate 40.50 is divided into four equal parts, the voltage applied between the electrode plates 40.50 is as shown in Fig. 7 (a).
) to (C), rotation can be caused. In the following explanation, the rotation angle θ of the dielectric plate 80 is
shall be selected as shown in the figure.

(a) When the rotation angle θ is 0, θ, and π, the electrode plate is 41.5
A voltage V is applied to the two sets of 1 and 43.53, and all other electrode plate voltages are set to 0. By doing this, the dielectric plate 50 is
A torque T is generated at the position, causing rotation in the clockwise direction shown in the figure.

(b) When π/2 × θ × π is reached, the electrode plate 42.5
A voltage V is applied to the two sets of 2 and 44.54, and all other electrode plate voltages are set to O. In this case, the electrode plate 42
．． Torque is generated in the dielectric plate 80 by the two sets of 52 and 44.54, causing it to rotate.

(C) 0 x θ x π/2 in π x θ x 3π/2
As in the case of , a voltage V is applied to the two sets of electrode plates 41.51 and 43.53, all other electrode plate voltages are set to 0, and a torque T is generated in the dielectric plate 80 to rotate it.

After (c), it returns to the state of (a) and continues to rotate.

Note that the present invention is not limited to the above embodiments. For example, the embodiment shown in FIG. 6(a) shows an example of a dielectric polarization motor using a four-part electrode plate and a three-plate dielectric plate.
However, the output of the motor may be increased by increasing the number of divided electrode plates and dielectric plates, increasing the number of electrode plates and dielectric plates, etc.

〔Effect of the invention〕

According to the present invention, the force generated based on the dielectric polarization phenomenon that occurs in the dielectric inserted between the electrode plates is used and this force is converted into rotational force, so the rotational force can be generated using only an electric field. A dielectrically polarized motor can be provided.

[Brief explanation of the drawing]

1(a)(b) to FIG. 5(a)(b) are diagrams showing the basic configuration (principle) of an embodiment of the present invention, and FIG. 1(a)(b) and FIG. 2 is a diagram showing its configuration, FIGS. 3(a) and 3(b) are explanatory diagrams of means for rotationally driving, and FIGS. 4 and 5 are supplementary explanatory diagrams of the operating principle. Figure 6 (a
)(b) to FIG. 8(a) to (c) are diagrams showing specific configuration examples of the same embodiment, and FIG. 6(a) is a longitudinal cross-sectional view, and FIG.
) is a sectional view taken along the line A-A in Figure (a), and Figure 7 Ca) to (
c) is a timing waveform diagram of the applied voltage, Fig. 8(a) to (
c) is a rotation state diagram corresponding to FIGS. 7(a) to (C). 1.2... Electrode plate, 3... Dielectric plate, 4... Rotating shaft, 11.12... Rectangular electrode plate, 13... Rectangular dielectric plate, 20...・Fan-shaped electrode plate, 21-23
...Parallel electrode plate, 31-33...Dielectric plate, 40-
44°50~54... Electrode plate, 60... Insulator, 6
1 to 64... Lead terminal, 70... Disc-shaped housing, 71... Rotating shaft, 80... Dielectric plate. Applicant's representative Patent attorney Takehiko Suzue, Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8. ^98 Director General of the Japan Patent Office Kunio Ogawa 1, Indication of Matter A 1 Patent Application No. 1982-308922 2, Title of Invention Dielectric Polarization Motor 3, Relationship with the Amendment Person Case Patent Applicant (620) Mitsubishi Heavy Industries 4 Co., Ltd., Agent 3-7-2 Kasumigaseki, Chiyoda-ku, Tokyo 1jBE Building 〒1
00 Telephone 03 (502>3181 (main representative)) As shown in the attached sheet (no change in content)

Claims (1)

[Claims] Electrode plates arranged in parallel and provided so as to generate an electric field in opposing regions; and a dielectric plate rotatably interposed between the electrode plates so as to generate a force based on the dielectric polarization phenomenon caused by the electric field. A dielectric polarization motor comprising: a body plate; and means for periodically applying a voltage to each of the electrode plates in accordance with the rotation angle of the dielectric plate.