Spatial electric field generator

Abstract

A spatial electric field generating device that improves convenience is provided. [Solution] The spatial electric field generator 10 comprises a spatial electric field generating unit 11 that generates a spatial electric field in response to the application of an AC voltage, and a power supply unit 13 that supplies the AC voltage to the spatial electric field generating unit 11. The power supply unit 13 comprises a battery, boosts the DC voltage output from the battery, converts the boosted DC voltage to an AC voltage, and supplies it to the spatial electric field generating unit 11.

Description

[Technical field]

[0001] The present disclosure relates to a spatial electric field generating device. [Background technology]

[0002] Patent Document 1 describes an electric field generator that utilizes biostimulation by an electric field formed around a living body to improve the physical condition of the living body. The electric field generator described in Patent Document 1 includes a mat section with linear electrodes stretched all over the surface. The linear electrodes do not have a ground electrode, and an AC voltage is supplied from one end. This generates electronic polarization between the electrodes and the living body on the mat section, forming a spatial electric field around the electrodes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2024-48340 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the electric field generator described in Patent Document 1, the AC voltage input from a commercial power source via an input socket is boosted and supplied to the electrodes. Therefore, it can only be used in places where a commercial power source is available, and there is room for improvement in terms of convenience.

[0005] An object of the present disclosure is to provide a spatial electric field generating device that can solve the above-mentioned problems and improve convenience. [Means for solving the problem]

[0006] A spatial electric field generating device according to an embodiment includes: A spatial electric field generating device that generates a spatial electric field, a spatial electric field generating unit that generates a spatial electric field in response to application of an AC voltage; A power supply unit that supplies an AC voltage to the spatial electric field generator, The power supply unit includes a battery, boosts a DC voltage output from the battery, converts the boosted DC voltage into an AC voltage, and supplies the AC voltage to the spatial electric field generating unit. Effect of the Invention

[0007] According to the spatial electric field generating device according to the present disclosure, it is possible to improve convenience. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a spatial electric field generating device according to an embodiment of the present disclosure. [Diagram 2] 2 is a diagram illustrating an example of the configuration of a power supply unit illustrated in FIG. 1. [Diagram 3] 3 is a diagram showing an example of control signals for the gate circuits 136a and 136b shown in FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0010] 1 is a diagram showing an example of the configuration of a spatial electric field generator 10 according to an embodiment of the present disclosure. As shown in FIG. 1, the spatial electric field generator 10 according to this embodiment includes a spatial electric field generator 11, a connection cord 12, and a power supply unit 13.

[0011] The spatial electric field generator 11 generates a spatial electric field in response to application of an AC voltage from the power supply unit 13 described later. The spatial electric field generator 11 has a configuration in which linear electrodes 11a are stretched all over the inside of the mat. The linear electrodes 11a do not have a ground electrode, and an AC voltage is supplied from one end. This causes electronic polarization between the electrode 11a and the living body on the mat, forming a spatial electric field around the electrode 11a.

[0012] The connection cord 12 electrically connects the power supply unit 13 and the electrode 11a included in the spatial electric field generator 11. Specifically, the connection cord 12 connects the power supply unit 13 and one end of the linear electrode 11a, and supplies the AC voltage output from the power supply unit 13 to the one end of the linear electrode 11a.

[0013] The power supply unit 13 supplies an AC voltage to the spatial electric field generator 11. Specifically, the power supply unit 13 supplies the AC voltage via the connection cord 12 to the electrodes 11a included in the spatial electric field generator 11.

[0014] FIG. 2 is a diagram showing an example of the configuration of the power supply unit 13. As shown in FIG.

[0015] As shown in FIG. 2, the power supply unit 13 includes a charging circuit 130, a battery 131, a DC / DC boost circuit 132 as a boost circuit, a transformer 133 as a first transformer, and a transformer 134 as a second transformer.

[0016] The battery 131 outputs a direct current voltage to the DC / DC boost circuit 132. The battery 131 is, for example, a secondary battery such as a lithium ion battery. When the battery 131 is a secondary battery, the spatial electric field generator 10 is provided with a charging port 14 (for example, USB Type C 5V input) for charging the battery 131, which is a secondary battery, with power from a commercial power source, as shown in FIG. 1. The battery 131 is charged by a charging circuit 130 connected to the commercial power source via the charging port 14. The battery 131 may also be a primary battery.

[0017] The DC / DC boost circuit 132 boosts the direct current voltage (for example, 7.4 V) output from the battery 131 to (for example, 20 V) and outputs the boosted voltage to the transformer 133 .

[0018] The transformer 133 is a center tap transformer having a center tap provided at the midpoint of the primary winding, and the output of the DC / DC boost circuit 132 is connected to the center tap. The secondary winding of the transformer 133 is connected to the primary winding of the transformer 134. The transformer 133 converts the DC voltage output from the DC / DC boost circuit 132 into a first AC voltage (for example, 100 V) and outputs it to the transformer 134.

[0019] The transformer 134 has one end of a primary winding connected to one end of a secondary winding of the transformer 133, and the other end of the primary winding connected to the other end of the secondary winding of the transformer 133. In addition, the transformer 134 has one end of a secondary winding connected to an electrode of the spatial electric field generating unit 11 via a connection cord 12. The transformer 134 converts the first AC voltage output from the transformer 133 into a second AC voltage (for example, 1800 V) higher than the first AC voltage, and supplies the second AC voltage to the spatial electric field generating unit 11. As shown in FIG. 2, the transformer 134 includes a resistor 134a connected to the primary winding and the secondary winding. A part of the current flows from the secondary winding to the primary winding via the resistor 134a. This allows the output voltage of the transformer 133 to be boosted and outputted to a greater extent.

[0020] As described above, in this embodiment, the output voltage of the battery 131 is boosted by the DC / DC boost circuit 132, the DC voltage boosted by the DC / DC boost circuit 132 is converted to an AC voltage and boosted by the transformer 133, and the AC voltage is further boosted by the transformer 134. Usually, the output voltage of the battery 131 is lower than the voltage of a commercial power source, but in this embodiment, the output voltage can be boosted to a voltage sufficient to generate a spatial electric field by the configuration of the power source unit 13 shown in Fig. 2 and output. Also, in this embodiment, since the battery 131 is used as a voltage source, it can be used even in places where commercial power is not available, and convenience can be improved.

[0021] In the power supply unit 13 shown in Fig. 2, the output voltage is determined by the turns ratio between the primary winding and the secondary winding of the transformer 133 and the turns ratio between the primary winding and the secondary winding of the transformer 134, etc. However, when the power supply unit 13 having the circuit configuration shown in Fig. 2 was configured, only a voltage lower than the ideal voltage determined by the configuration of the power supply unit 13 was output. This is considered to be due to interference of electric fields generated by the transformers 133, 134, etc.

[0022] As a result of intensive research by the inventor of the present application, it was confirmed that the output voltage of the power supply unit 13 can be increased by arranging a conductive sheet on one surface inside the housing of the power supply unit 13 and arranging the above-mentioned battery 131, DC / DC boost circuit 132, transformer 133, and transformer 134 on the conductive sheet. That is, in this embodiment, the power supply unit 13 includes the battery 131, DC / DC boost circuit 132, transformer 133, and transformer 134, which are arranged on the conductive sheet. In this way, a decrease in the output voltage of the power supply unit 13 can be suppressed.

[0023] The conductive sheet is, for example, a sheet having a conductive surface and an insulating surface. The conductive sheet may be a metal plate such as Cu or Fe. By using such a metal plate, the output voltage of the power supply unit 13 can be further increased. The conductive portion of the conductive sheet or the metal plate is connected to the ground. Furthermore, it was confirmed that the output voltage can be further increased by arranging a similar conductive sheet on one surface of the back surface of the lower part of the housing.

[0024] As shown in FIG. 2, the power supply unit 13 further includes an output voltage amplitude control circuit 135, gate circuits 136a and 136b, and a microcomputer 137 as a control unit.

[0025] The output voltage amplitude control circuit 135 controls the on / off of the switching elements included in the DC / DC boost circuit 132 to control the amplitude of the output voltage of the DC / DC boost circuit 132 .

[0026] Gate circuit 136a is connected to one end of the primary winding of transformer 133. Gate circuit 136b is connected to the other end of the primary winding of the transformer. Gate circuits 136a and 136b can control the frequency of the AC voltage output by transformer 133 by being turned on and off under the control of microcomputer 137, which will be described later. Specifically, control signals of opposite phases are input to gate circuit 136a and gate circuit 136b, respectively, as shown in FIG. 3.

[0027] The microcomputer 137 includes an input / output circuit, a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), etc. The functions of the microcomputer 137 are realized by executing a program on a processor such as a CPU included in the microcomputer 137.

[0028] The microcomputer 137 is driven by power supplied from the battery 131, and controls the amplitude of the DC voltage boosted by the DC / DC boost circuit 132 and the frequency of the output voltage (first AC voltage) of the transformer 133. Specifically, the microcomputer 137 controls the amplitude control circuit 135 to control the amplitude of the output voltage of the DC / DC boost circuit 132. The microcomputer 137 also controls the gate circuits 136a and 136b to control the frequency of the output voltage (first AC voltage) of the transformer 133.

[0029] It is possible to control the amplitude and frequency of the output voltage of the power supply unit 13 by controlling the output voltage of the DC / DC boost circuit 132 and the frequency of the output voltage (first AC voltage) of the transformer 133. This allows the power supply unit 13 to output a fluctuating AC voltage having an amplitude and frequency according to, for example, a user operation.

[0030] Thus, the spatial electric field generator 10 according to this embodiment includes a spatial electric field generator 11 that generates a spatial electric field in response to application of an AC voltage, and a power supply unit 13 that supplies an AC voltage to the spatial electric field generator 11. The power supply unit 13 includes a battery 131, boosts a DC voltage output from the battery 131, converts the boosted DC voltage into an AC voltage, and supplies it to the spatial electric field generator 11.

[0031] Since the battery 131 is used as a voltage source and the output voltage of the battery 131 can be boosted and converted into AC power to generate a spatial electric field, it can be used even in places where commercial power is not available, thereby improving convenience.

[0032] Although the above-mentioned embodiment has been described as a representative example, it is obvious to those skilled in the art that many modifications and substitutions are possible within the spirit and scope of the present invention. Therefore, the present invention should not be interpreted as being limited by the above-mentioned embodiment, and various modifications and changes are possible without departing from the scope of the utility model registration claims. For example, it is possible to combine multiple building blocks shown in the configuration diagram of the embodiment into one, or to divide one building block. [Explanation of symbols]

[0033] 10. Spatial electric field generator 11 Spatial electric field generator 11a electrode 12 Connection cord 13 Power supply section 14 Charging port 130 Charging circuit 131 Batteries 132 DC / DC boost circuit 133 Transformer (First Transformer) 134 Transformer (Second Transformer) 134a Resistance 135 Output voltage amplitude control circuit 136a, 136b Gate circuit 137 Microcomputer (control unit)

Claims

1. A spatial electric field generating device that generates a spatial electric field, a spatial electric field generating unit that generates a spatial electric field in response to application of an AC voltage; A power supply unit that supplies an AC voltage to the spatial electric field generator, The power supply unit includes a battery, boosts a DC voltage output from the battery, converts the boosted DC voltage into an AC voltage, and supplies the AC voltage to the spatial electric field generating unit.

2. The spatial electric field generating device according to claim 1, The power supply unit is disposed on a conductive sheet. The battery; a boost circuit for boosting a DC voltage output from the battery; a first transformer that converts the DC voltage boosted by the boost circuit into a first AC voltage; A second transformer that converts the first AC voltage into a second AC voltage higher than the first AC voltage and supplies the second AC voltage to the spatial electric field generator.

3. In the spatial electric field generating device according to claim 1 or 2, The spatial electric field generating device, wherein the power supply unit further includes a control unit that controls the amplitude of the DC voltage boosted by the boost circuit and the frequency of the first AC voltage.

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