JP2016168127A - Magnetic therapy apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic therapy apparatus capable of increasing energy efficiency by suppressing an electric current of a coil while efficiently generating magnetic flux necessary for magnetic therapy, and enhancing convenience of a user.SOLUTION: An iron core 10 includes a base part 13 disposed outside one end part of a coil 8 that extends in a radial direction of the coil 8, a central part 12 protruded from an intermediate part of the base part 13 and inserted into the coil 8 that extends along the shaft of the coil 8, and a magnetic flux generation surface 11 formed in the vicinity of the tip of the central part 12 protruded from the other end part of the coil 8 that extends toward the axial outside of the coil 8. Thereby, while appropriately securing the magnetic flux acting on a human body, an electric current flowing through the coil can be reduced.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a magnetic therapy device, and more particularly to a magnetic therapy device that applies a magnetic field generated by a coil to a human body.

  2. Description of the Related Art Conventionally, as a magnetic therapy device, a device that effectively uses a magnetic field generated in a gap portion of an iron core by energizing a coil, that is, a leakage magnetic flux, and treats the magnetic field by acting on the human body is known.

  For example, in Patent Document 1, an iron core formed in a substantially U shape, a field coil wound around each arm part of the iron core, and a connection part between the both arm parts of the iron core are wound. A magnetic therapy device having a coil is disclosed. The magnetic therapy device disclosed in this document has a small and lightweight configuration while maintaining a predetermined gauss because coils are provided not only in both arms of the iron core but also in the connection.

  Further, Patent Document 2 discloses a magnetic therapy apparatus in which a magnetic therapy device formed by connecting a plurality of magnetic field generators so as to be bent with respect to each other is disposed inside.

Japanese Patent Laid-Open No. 6-165830 (2nd page, FIG. 1) Japanese Patent Laid-Open No. 11-226137 (page 3, FIG. 1)

  However, the above-described conventional technology has room for improvement from the viewpoint of reducing the current loss of the coil while efficiently generating a leakage magnetic flux suitable for treatment and improving convenience.

  For example, in the magnetic therapy device disclosed in Patent Document 1, since the iron core is formed in a substantially U shape so that both ends of the iron core that generates the leakage magnetic flux are directed in the same direction, the leakage magnetic flux used for treatment is reduced. It can be generated toward the human body.

  However, the magnetic therapy device of the same document has a gap between the iron cores forming the magnetic circuit, that is, a spatial distance between both ends of the iron core, and a large amount of magnetic flux that imperfectly links the coils. For this reason, there is a problem that the inductance of the coil is low, the impedance is low, the current flowing through the coil is large, the resistance loss and the heat generated thereby are large.

  Further, for example, in the magnetic therapy device described in Patent Document 2, in order to change the portion on which magnetism acts, the user himself has to change the way the magnetic therapy device is applied.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the energy efficiency by suppressing the coil current while efficiently generating the magnetic flux necessary for the magnetic treatment, and for the user. An object of the present invention is to provide a magnetic therapy device that can improve the convenience of the device.

  The magnetic therapy device of the present invention has a magnetic field generator in which an iron core is provided inside a coil for generating a magnetic field, and the iron core is disposed outside one end of the coil and is arranged in the radial direction of the coil. A base portion extending from the middle portion of the base portion, inserted through the coil and extending along the axis of the coil, and the central portion projecting from the other end portion of the coil. And a magnetic flux generation surface that is formed in the vicinity of the tip portion and that extends outward in the axial direction of the coil.

  According to the magnetic treatment device of the present invention, the iron core is disposed outside the one end of the coil and extends in the radial direction of the coil, and protrudes from an intermediate portion of the base and is inserted into the coil. A central portion extending along the axis of the coil. As a result, the distance between the magnetic flux generating surface that becomes the gap of the magnetic circuit and the end of the base, that is, the distance from the output of the magnetic flux to the absorption is shortened, and the inductance can be increased, so that the magnetic flux that acts on the human body is suitably secured. However, the current flowing through the coil can be reduced. Therefore, efficient treatment with less power loss and less energy loss becomes possible.

  Further, the iron core may be provided with a peripheral portion extending in the same direction as the central portion from the vicinity of the end portion of the base portion. Thereby, the distance between the magnetic flux generating surface and the peripheral portion, that is, the distance from the output of the magnetic flux to the absorption is further shortened, and the current loss can be further reduced. Moreover, by providing a peripheral part, the magnetic flux which goes to a human body can be strengthened, and the effect of a treatment can be improved.

  Moreover, you may provide the upper side part extended in the radial direction of this coil on the outer side of a coil near the front-end | tip of the center part of an iron core. This also shortens the distance from magnetic flux output to absorption, lowers the coil current, reduces resistance loss, and more efficiently generates magnetic flux required for treatment.

  Further, according to the magnetic therapy device of the present invention, the plurality of magnetic field generators are arranged on the same plane with their central portions parallel and in the same direction, with the end portions of the base portions facing each other. The Thereby, the magnetic circuit which put together the iron core of each magnetic field generator into one big iron core can be formed. Further, the magnetic flux generated in the coil can be increased or decreased by changing the polarity of the coil. Therefore, more effective magnetic therapy can be performed by adjusting the strength of the magnetic field generated from the magnetic field generator or controlling the polarity of the coil.

  Moreover, you may connect the iron core of the magnetic field generator provided with two or more by a connection iron core. Thereby, the iron core of the magnetic field generator arrange | positioned in multiple can be made into one continuous iron core without a gap, and the strength of the magnetic flux which generate | occur | produces in a coil can be adjusted. Thereby, the electric current which flows through a coil can be reduced and efficiency can be improved further.

  Moreover, you may attach an auxiliary coil to a connection iron core. Thereby, while being able to raise the whole magnetic flux, the magnetic flux which leaks from a connection iron core and links a coil incompletely can be reduced, and the electric current which flows into a coil can be reduced. Therefore, it is possible to perform highly efficient magnetic treatment with less energy loss.

  Further, the current may be supplied by selectively switching the coils of the plurality of magnetic field generators. Thereby, the position and intensity of the magnetic field to be generated can be arbitrarily switched without moving the magnetic therapy device. Therefore, it is possible to provide a magnetic therapy device that is easy for the user to use and has a high therapeutic effect.

  Further, by appropriately switching the polarity of the plurality of coils, the amount of magnetism acting on the human body and the direction of magnetism can be adjusted.

It is a block diagram which shows schematic structure of the magnetic therapy apparatus which concerns on embodiment of this invention. It is a perspective view of the magnetic field generator concerning the embodiment of the present invention. It is (A) sectional drawing of the magnetic field generator which concerns on embodiment of this invention, (B) It is a perspective view of an iron core. It is the (A) bottom view of the magnetic field generator which concerns on embodiment of this invention, (B) It is the sectional view on the AA line shown to FIG. 4 (A). It is (A) sectional drawing of the magnetic field generator which concerns on other embodiment of this invention, (B) It is a perspective view of an iron core. It is (A) sectional drawing of the magnetic field generator which concerns on other embodiment of this invention, (B) It is a perspective view of an iron core. It is a perspective view of the iron core of the magnetic field generator concerning other embodiments of the present invention. 1 is a perspective view of a magnetic field generator assembly and a substrate according to an embodiment of the present invention. 6 is a cross-sectional view of a magnetic field generator assembly according to another embodiment of the present invention. FIG. It is sectional drawing which shows (A) Magnetic field generator assembly which concerns on other embodiment of this invention, (B) Another example of an iron core, (C) Still another example of an iron core. 6 is a cross-sectional view of a magnetic field generator assembly according to another embodiment of the present invention. FIG. 6 is a cross-sectional view of a magnetic field generator assembly according to another embodiment of the present invention. FIG. 6 is a perspective view of a magnetic field generator assembly according to another embodiment of the present invention. FIG. (A) Operates all three magnetic field generators of a magnetic field generator assembly according to another embodiment of the present invention, (B) operates two magnetic field generators in the center and one end, (C) It is a figure which shows the example at the time of operating a magnetic field generator. It is a circuit diagram which shows the other example of (A) magnetic flux detector which concerns on embodiment of this invention, and (B) magnetic flux detector.

Hereinafter, a magnetic therapy device according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a magnetic therapy device 1 according to an embodiment of the present invention. The magnetic therapy device 1 includes an operation unit 5 and a plurality of treatment units 2 connected to each other.

  The operation unit 5 is connected to any one of the treatment units 2, receives an operation from the outside, and transmits a signal based on the input from the outside to the control device 4 in the treatment unit 2. The connection between the operation unit 5 and the treatment unit 2 may be wireless, for example.

The treatment unit 2 has a housing (not shown), and includes a magnetic field generator assembly 33 having a plurality of magnetic field generators 3 and a plurality of temperature sensors 6 in the housing, and a control device 4.
The magnetic field generator 3 is connected to the control device 4 and generates a magnetic field for acting on the human body based on a signal from the control device 4. Details will be described later.
The temperature sensors 6 are respectively disposed in the magnetic field generators 3 and detect the temperatures of the respective magnetic field generators 3. The temperature sensor 6 is, for example, a thermistor temperature sensor.

  The control device 4 includes a driver circuit that operates the magnetic field generator 3, an arithmetic circuit that performs a predetermined calculation, a power supply circuit, a display circuit that displays an operation state, and the like, and includes an operation unit 5, a magnetic field generator 3, and a temperature sensor 6. Connected to etc. The control device 4 controls and monitors the magnetic field generator 3 by performing a predetermined calculation based on input from the operation unit 5, information from the temperature sensor 6, preset parameters, and the like.

  FIG. 2 is a perspective view of the magnetic field generator 3 according to the embodiment of the present invention. The magnetic field generator 3 includes a coil 8 that generates a magnetic field, an iron core 10 that passes inside the coil 8, and a bobbin 7 that is provided between the coil 8 and the iron core 10 and around which the coil 8 is wound.

  The coil 8 is formed by, for example, winding a conducting wire such as a heat-resistant enamel-coated copper wire around the bobbin 7, and the end of the conducting wire is connected to the control device 4 (see FIG. 1). When the coil 8 is energized, a magnetic field is generated. The strength of the magnetic field can be changed by suitably setting the number of turns of the coil 8, the thickness and length of the conducting wire, and changing the current flowing through the coil 8 by the control device 4.

  The coil 8 may be provided with an intermediate tap. Thereby, the length of the conducting wire through which the current of the coil 8 flows can be switched, and the strength of the generated magnetic field can be switched. For example, the tap of the coil 8 may be switched according to the power supply frequency or the like. In particular, since the magnetic field generated in the 60 Hz area is lower than in the 50 Hz area, switching by tapping is effective for stabilizing the output.

  The bobbin 7 is disposed between the coil 8 and the iron core 10, and the bobbin 7 has a hole for passing the iron core 10 in the axial direction of the coil 8. In addition, on the upper part and the lower part of the bobbin 7, a flange part 22 extending in the radial direction of the coil 8 is formed.

  3A is a cross-sectional view of the magnetic field generator 3 according to the embodiment of the present invention, and FIG. 3B is a perspective view of the iron core 10 of the magnetic field generator 3. As shown in FIGS. 3A and 3B, the iron core 10 has a center portion 12, a base portion 13, and a magnetic flux generation surface 11, and has a substantially inverted T shape.

  The base 13 is disposed outside the coil 8 and the bobbin 7, that is, outside one end 8 a of the coil 8, and extends in the radial direction of the coil 8. Specifically, the base portion 13 has a substantially bar shape extending in the radial direction of the coil 8. The form of the base 13 is not limited to a substantially rod shape, and may be, for example, a substantially plate-like form or a substantially cross-like form formed substantially perpendicular to the axis of the coil 8. .

  The central portion 12 is a substantially rod-shaped portion that protrudes from an intermediate portion of the base portion 13 and is inserted inside the coil 8 and the bobbin 7 and extends along the axis of the coil 8. In other words, the above-described base portion 13 protrudes outward in the radial direction of the coil 8 from the central portion 12.

  The magnetic flux generation surface 11 is formed in the vicinity of the tip of the center portion 12 protruding from the other end portion 8 b of the coil 8, and is directed outward in the axial direction of the coil 8. The other end portion 8 b of the coil 8 is an end portion on the human body side when the magnetic therapy device 1 is used. That is, the magnetic flux generation surface 11 is directed toward the human body during treatment.

  Thus, by forming the magnetic flux generation surface 11 toward the human body, the magnetic field generator 3 can suitably generate a magnetic field toward the human body. Further, since the magnetic flux generation surface 11 is formed in the vicinity of the tip of the center portion 12 protruding from the bobbin 7, the magnetic flux generated from the magnetic field generator 3 is easily applied to the human body.

  Further, since the iron core 10 has a substantially inverted T-shape, the end portions of the magnetic flux generating surface 11 and the base 13 serving as a gap of the magnetic circuit as compared with a substantially I-shaped iron core having only the central portion 12. 23, that is, the distance from magnetic flux output to absorption is shortened. Therefore, the current flowing through the coil 8 can be reduced by increasing the inductance of the coil 8 while suitably securing the magnetic flux acting on the human body. Therefore, an efficient treatment with less power loss and less energy loss becomes possible.

  In addition, the iron core 10 is formed by overlapping a plurality of thin steel plates, for example, silicon steel plates, and thereby a strong magnetic flux can be obtained. The laminated steel plates are fixed by a fastener 21 such as a screw, for example. Further, the iron core 10 may be a ferrite core, for example.

  4A is a bottom view of the magnetic field generator 3 according to the embodiment of the present invention, and FIG. 4B is a cross-sectional view taken along the line AA shown in FIG.

  As shown in FIG. 4A, a concave portion 29 for attaching the temperature sensor 6 is formed on the surface opposite to the coil 8 of the lower collar portion 22b of the bobbin 7, that is, the bottom surface portion of the bobbin 7. The The recess 29 has a shape corresponding to the temperature sensor 6 and the wiring connected thereto.

  Thereby, positioning of the temperature sensor 6 becomes easy, and the temperature sensor 6 can be attached to a predetermined position with high accuracy. For this reason, there is little variation in measured values due to an error in the mounting position of the temperature sensor 6, and the temperature at a predetermined position can be accurately measured.

  As shown in FIG. 4B, the recess 29a for attaching the temperature sensor 6 formed on the bobbin 7 is formed deeper than the recess 29b for guiding the wiring. That is, the lower flange portion 22b of the bobbin 7 has a portion (recess 29a) that is thinner than the surroundings, and the temperature sensor 6 is attached to a portion (recess 29a) where the thickness is thinner. Thereby, the heat generated by energizing the coil 8 is easily transmitted to the temperature sensor 6, and the temperature measurement accuracy is improved.

  Further, a heat insulating material 30 is disposed on the lower flange portion 22 b of the bobbin 7 so as to cover the temperature sensor 6. Thereby, since the heat transfer to the outside can be reduced, the temperature sensor 6 can measure the temperature of the coil 8 more accurately.

  The magnetic field generator 3 includes a thermal fuse (not shown). The thermal fuse protects the coil 8 and the like from overheating due to overcurrent, and is attached along the conducting wire of the coil 8. When the temperature of the coil 8 rises abnormally, the thermal fuse is activated and the power supply to the coil 8 is cut off. Normally, protection control based on the temperature detected by the temperature sensor 6 is performed so as not to increase to a temperature at which the thermal fuse operates.

  FIG. 5A is a cross-sectional view of a magnetic field generator 103 according to another embodiment of the present invention, and FIG. 5B is a perspective view of an iron core 110 of the magnetic field generator 103.

  As shown in FIG. 5A, the iron core 110 has a peripheral portion 14 that extends in the vicinity of both end portions 23 of the base portion 13 and extends in the same direction as the central portion 12 on the outer diameter side of the coil 8. . That is, the iron core 110 has a substantially rod-shaped peripheral portion 14 extending continuously from the both end portions 23 of the base portion 13 in a substantially vertical direction. In other words, the iron core 110 has a substantially mountain shape.

  By forming the peripheral portion 14 in the vicinity of the end portion 23 of the base portion 13 of the iron core 110, the distance between the magnetic flux generating surface 11 and the upper end portion 24 of the peripheral portion 14, that is, the distance from magnetic flux output to absorption is shortened. Inductance increases. As a result, the current loss can be further reduced. Further, by providing the peripheral portion 14 extending upward, the absorption of magnetic flux can be controlled. Therefore, the magnetic flux toward the human body can be strengthened.

  As shown in FIG. 5 (B), the iron core 110 is configured by laminating steel plates in a substantially mountain shape with the peripheral portion 14 integrated. Thereby, the number of parts constituting the iron core 110 can be reduced, and the iron core 110 can be easily assembled. Further, the peripheral portion 14 of the iron core 110 may be formed in a shape that can be detached from the base portion 13.

  6A is a cross-sectional view of a magnetic field generator 203 according to another embodiment of the present invention, and FIG. 6B is a perspective view of an iron core 210 of the magnetic field generator 203.

  As shown in FIGS. 6A and 6B, the iron core 210 has an upper side portion 15 provided in the vicinity of the tip portion of the center portion 12 and extending in the radial direction of the coil 8 outside the coil 8. That is, the upper side portion 15 has a substantially rod-like shape protruding in the radial direction of the coil 8 from the center portion 12.

  By forming the upper side portion 15 on the iron core 210, a magnetic flux generating surface 211 is formed on the upper surface of the upper side portion 15. In the iron core 210, the distance between the left and right end portions 25 of the upper side portion 15 and the end portion 24 of the peripheral portion 14, that is, the gap when the iron core 210 is considered as an inductor is further shortened. Thereby, the current of the coil 8 can be lowered to reduce resistance loss, and the magnetic flux necessary for treatment can be generated more efficiently.

  Further, the length of the upper side portion 15 in the radial direction of the coil 8 is shorter than that of the base portion 13. Therefore, the magnetic flux which goes to a human body becomes strong, and the magnetic flux which goes to a human body reverse direction can be reduced. Thereby, the magnetic field suitable for treatment can be generated more efficiently.

  In addition, the upper side part 15 is not limited to a substantially rod-shaped form. Further, the upper side portion 15 of the iron core 210 may be formed to be removable from the center portion 12. By making the upper side portion 15 removable, the upper side portion 15 can be attached after the bobbin 7 and the coil 8 are attached to the central portion 12. That is, it is possible to facilitate the attaching operation of the bobbin 7 and the coil 8.

  FIG. 7 is a perspective view of an iron core 310 of a magnetic field generator 303 according to another embodiment of the present invention. As shown in FIG. 7, the iron core 310 has a substantially disc-shaped upper side portion 315 and a substantially disc-shaped base portion 313. The iron core 310 is formed by a combination of a sintered magnetic material such as ferrite and a magnetic material such as an iron plate, for example.

  The magnetic field generator 303 generates a magnetic field by energizing the coil 8 (see FIG. 6). The iron core 310 is formed with the upper side portion 315 and the base portion 313, so that the magnetic circuit extends not only in the extending direction of the upper side portion 15 and the base portion 13 as in the iron core 210 shown in FIG. The gap can be shortened. Thereby, the current of the coil 8 can be further lowered to reduce resistance loss, and the magnetic flux necessary for treatment can be generated more efficiently.

  Here, the magnetic flux density on the magnetic flux generation surface 311 of the magnetic field generated by the magnetic field generator 303 is increased by reducing the area of the magnetic flux generation surface 311. On the other hand, when the area of the magnetic flux generating surface 311 is increased, the magnetic flux density of the magnetic flux generating surface 311 is decreased, but the magnetic field generated by the magnetic field generator 303 is deepened in the human body direction. This is because the direction of the magnetic flux toward the human body is controlled by increasing the magnetic flux generation surface 311 that generates the magnetic flux toward the human body, and the position of the base 313 that absorbs the magnetic flux is fixed. Because. Thus, by appropriately setting the sizes of the upper side portion 315 and the base portion 313, it is possible to suppress energy loss while ensuring the size of the magnetic field necessary for magnetic therapy.

  Further, the base 313 of the iron core 310 may be formed larger than the magnetic flux generation surface 311. As a result, the magnetic flux directed in the direction opposite to the human body direction is restrained by the position of the base 313 and absorbed, and the magnetic flux necessary for magnetic therapy can be further increased.

  In addition, the iron core 310 may be in the form of a substantially inverted T-shaped longitudinal section including the central portion 12 and the base portion 313 without providing the upper side portion 315. Moreover, the iron core 310 may be formed by combining the two parts of the substantially bar-shaped center portion 12 and the substantially disk-shaped base portion 313 after forming the respective components. The base 313 may be configured by combining a substantially rod-like magnetic body extending in the radial direction of the coil 8 and a substantially plate-like magnetic body that is separately formed.

  FIG. 8 is a perspective view of the magnetic field generator assembly 33 and the substrate 9 according to the embodiment of the present invention. Although FIG. 8 shows an example in which three magnetic field generators 3 are arranged, one or a plurality of magnetic field generators 3 can be combined, and the number of magnetic field generators 3 is not limited to this.

  The magnetic field generator assembly 33 is configured by arranging a plurality of magnetic field generators 3 side by side. Specifically, the plurality of magnetic field generators 3 are arranged on the same plane with their central portions 12 parallel and in the same direction, and are arranged with the vicinity of the end 23 of the base 13 facing each other.

  Thereby, it is possible to form a magnetic circuit in which the iron cores 10 of the respective magnetic field generators 3 are combined into one large iron core, and the magnetic flux generated in the coil 8 can be strengthened or weakened according to the polarity of the coil 8. it can. Therefore, it is possible to adjust the strength of the magnetic field generated from the magnetic field generator 3 and perform more effective magnetic therapy.

  The substrate 9 is a component constituting the control device 4 (see FIG. 1) and fixes the magnetic field generator 3. A claw 20 is formed at the end of the substrate 9. The magnetic therapy device 1 has a substrate (not shown) including an arithmetic circuit and the like, and a magnetic shield plate is provided between the substrate and the substrate 9. Thereby, the influence of the magnetic noise by the coil 8 can be suppressed.

  Engaging portions 19 for engaging the substrate 9 constituting the control device 4 are formed in the vicinity of the end portions of the upper flange portion 22a and the lower flange portion 22b of the bobbin 7. Thereby, the nail | claw part 20 of the board | substrate 9 and the engaging part 19 formed in the bobbin 7 can be engaged, and the bobbin 7 can be fixed to the board | substrate 9 easily. That is, the work of attaching the plurality of magnetic field generators 3 to the substrate 9 can be performed efficiently, and the magnetic field generator 3 is fixed to a predetermined position of the substrate 9 with high accuracy.

  Therefore, the operation of connecting the coil 8, the temperature sensor 6 (see FIG. 1), the wiring such as the temperature fuse, etc. to the terminals of the substrate 9 becomes easy. That is, it is difficult to connect the wires that are not fixed to each other and to insulate the wires. In this embodiment, the terminals of the magnetic field generator 3 fixed to the substrate 9 are formed on the substrate 9. Because it is connected to, the work is easy.

  Further, a pair of slits 28 are formed in the upper flange portion 22 a of the bobbin 7 in the vicinity of the left and right sides of the engagement portion 19 with the engagement portion 19 interposed therebetween. Accordingly, the engagement portion 19 is easily elastically deformed in the vertical direction, so that the substrate 9 can be easily attached. In addition, the slit 28 may be formed in both the lower collar part 22b of the bobbin 7, or both the upper collar part 22a and the lower collar part 22b.

FIG. 9 is a cross-sectional view of a magnetic field generator assembly 433 according to another embodiment of the present invention.
As shown in FIG. 9, the magnetic field generator assembly 433 includes a magnetic field generator 103 including an iron core 110 in which a peripheral portion 14 is formed. Specifically, in the magnetic field generator assembly 433, the plurality of magnetic field generators 103 are arranged on the same plane with the central portions 12 of the respective iron cores 110 parallel and in the same direction, and the end portions 23 of the base portion 13. It is arranged with the vicinity facing each other.

  Also in the magnetic field generator assembly 433, it is possible to form a magnetic circuit in which the iron cores 110 of the respective magnetic field generators 103 are combined into one large iron core, thereby adjusting the strength of the magnetic flux generated in the coil 8. be able to.

  10A is a cross-sectional view of a magnetic field generator assembly 533 according to another embodiment of the present invention, and FIG. 10B is a cross-sectional view of an iron core 510 as another example, and FIG. C) is a sectional view of an iron core 610 which is still another example.

  As shown in FIG. 10A, the magnetic field generator assembly 533 includes a connecting iron core 16 that connects the iron cores 110 of the adjacent magnetic field generators 103. The connecting iron core 16 is disposed in the vicinity of the end 23 of the base portion 13 of the iron core 110. Specifically, the connecting iron core 16 connects the peripheral portions 14 of the adjacent magnetic field generators 103.

  Thereby, the iron core 110 of the arranged magnetic field generator 103 can be made one continuous iron core without a gap, the magnetic flux generated in the coil 8 can be strengthened, and the current flowing through the coil 8 can be reduced. Thus, more efficient magnetic therapy can be performed.

  In addition, it is set as one steel plate which integrated the steel plate which comprises the substantially chevron-shaped steel plate which comprises the iron core 110, and the connection iron core 16, and the iron core 110 and the connection iron core 16 are integrated by laminating | stacking the steel plate. A single iron core may be configured. Thereby, the number of parts of the iron core 110 is reduced, and the assemblability is improved.

  Specifically, the steel plate constituting the iron core 110 and the steel plate constituting the connecting iron core 16 and the steel plate constituting the iron core 110 are alternately stacked and arranged at both ends of the magnetic field generator assembly 533. You may comprise the iron core 110 of the magnetic field generator 103b provided. And the steel plate which integrated the steel plate which comprises the iron core 110, and the steel plate which comprises the connection iron core 16 is reversed horizontally, and is laminated | stacked alternately, and the magnetic field generator 103a arrange | positioned in the center of the magnetic field generator assembly 533 is provided. The iron core 110 may be configured.

  Thereby, the connection iron core 16 is formed by alternately stacking the steel plates constituting the iron core 110 of the one magnetic field generator 103 to be connected and the steel plates constituting the iron core 110 of the other magnetic field generator 103. . Therefore, the number of parts constituting the iron core is reduced, and the magnetic field generator assembly 533 can be easily manufactured.

  As shown in FIG. 10B, an iron core 510 in which a plurality of substantially U-shaped iron cores 35 and iron cores 36 are combined may be used as one integrated iron core. The iron core 35 and the iron core 36 are cut cores that are formed by winding a substantially band-shaped material of a magnetic body around a winding mold (not shown), and annealing and bonding, followed by cutting.

  The central portion 512 of the iron core 510 is formed by overlapping and joining both arm portions of the iron core 35 and the iron core 36. By attaching the bobbin 7 (see FIG. 10A) and the coil 8 (see FIG. 10A) to the central portion 512, a configuration corresponding to the magnetic field generator assembly 533 (see FIG. 10A) is obtained. .

  Since a complicated mold or the like is not required for forming the cut core, the manufacturing cost of the magnetic field generator assembly 533 can be reduced by using the iron core 35 and the iron core 36 which are cut cores.

  Further, as shown in FIG. 10C, as one integrated iron core, an iron core 35 that is a cut core formed in a substantially U shape, and an iron core 37 formed in a substantially L shape. An iron core 610 configured in combination may be used.

  FIG. 11 is a cross-sectional view of a magnetic field generator assembly 633 according to another embodiment of the present invention. As shown in FIG. 11, the magnetic field generator assembly 633 has an auxiliary coil 17 wound around the connecting core 16.

  Specifically, the auxiliary coil 17 is wound around the connecting iron core 16 via the bobbin 18. Since the auxiliary coil is wound around the connecting core 16, the magnetic flux of the entire magnetic field generator assembly 633 can be increased, and the current that flows by reducing the magnetic flux leaking from the connecting core 16 and imperfectly interlinking the coil 8 is reduced. Can be reduced. Therefore, it is possible to perform highly efficient magnetic treatment with less energy loss.

  The iron core 110 has a peripheral portion 14 extending upward from the base portion 13, and the connecting iron core 16 is connected in the vicinity of the upper end portion 24 of the peripheral portion 14. Thereby, the connecting iron core 16 is disposed above the bottom surface of the iron core 110. That is, a space is created between the bottom surface and the connecting iron core 16. Thereby, since the lower part of the auxiliary coil 17 wound around the connecting iron core 16 is disposed between the bottom surface and the connecting iron core 16, the height of the magnetic field generator assembly 633 can be kept low.

FIG. 12 is a cross-sectional view of a magnetic field generator assembly 733 according to another embodiment of the present invention.
The magnetic field generator assembly 733 includes a magnetic field generator 203 including a plurality of upper sides 15 and a connecting iron core 16. By using the magnetic field generator 203 having the upper side 15, the power efficiency of the magnetic therapy device 1 can be further increased.

  FIG. 13 is a perspective view of a magnetic field generator assembly 833 according to another embodiment of the present invention. The distance L shown in FIG. 13 indicates the distance between the upper side portion 15a and the upper side portion 15b.

  The iron core 810a of the magnetic field generator 803a disposed in the center has an upper side portion 15a extending in the radial direction of the coil 8 and disposed substantially perpendicular to the extending direction of the base portion 13 (see FIG. 12). That is, the iron core 810a has a substantially inverted T shape or a substantially T shape in front view and side view, and has a substantially cross shape in a top view.

  Further, the iron core 810b of the magnetic field generator 803b disposed at both ends of the magnetic field generator assembly 833 has an upper side portion 15b extending in the direction opposite to the magnetic field generator 803a in the radial direction of the coil 8. That is, the iron core 810b has a substantially U-shape when viewed from the front.

  As described above, the distance L between the upper side portion 15b at both ends and the upper side portion 15a at the center can be secured large by changing the mounting direction or decentering the upper side portion 15 of the iron core 810. That is, the iron core 810 can secure a large gap in the human body direction. Thereby, more magnetic flux for the magnetic treatment which goes to a human body can be generated.

  FIG. 14A shows a case where all three magnetic field generators 103 of a magnetic field generator assembly 633 according to another embodiment of the present invention are operated, and FIG. 14B shows the center and one end. FIG. 14C is a diagram showing an example in which two magnetic field generators 103 at both ends are operated.

  The magnetic field generated by energizing the coil 8 of the magnetic field generator 103 is an alternating magnetic field in which the direction of the magnetic flux is periodically switched. In FIGS. 14A to 14C, the instantaneous magnetic flux is The magnetic field lines Φ1 to Φ4 are schematically shown, and the magnetic field generated from the magnetic field generator 103 will be described below with reference to the instantaneous magnetic flux.

  The control device 4 (see FIG. 1) can selectively switch the coil 8 and the auxiliary coil 17 of each magnetic field generator 103 to flow current. For example, as illustrated in FIG. 14A, the control device 4 executes an operation of energizing the coils 8 and the auxiliary coils 17 of all the magnetic field generators 103.

  Then, the magnetic field lines Φ1 generated from the central magnetic field generator 103b converge on the magnetic flux generation surfaces 11 of the magnetic field generators 103a and 103c at both ends, and the magnetic field spreads in a substantially M shape. Thereby, magnetism can be made to act on the wide range of a human body.

  When three magnetic field generators 103 are operated, the current flowing through the coil 8 of the magnetic field generator 103b is approximately twice as large as the current flowing through the magnetic field generators 103a and 103c. become.

  In addition, when the three magnetic field generators 103 are operated in this way, the heat generation from the magnetic field generator 103 can be increased, so that a thermal therapeutic effect that positively uses the heat can be expected.

  Further, as shown in FIG. 14B, the control device 4 includes a magnetic field generator 103 (one of the magnetic field generator 103a and the magnetic field generator 103c) disposed at one end and the center. The magnetic field generator 103b to be operated is selected and operated.

  In the same figure, the magnetic field lines Φ2 are generated from the central magnetic field generator 103b and converge to the leftmost magnetic field generator 103a by simultaneously operating the leftmost magnetic field generator 103a and the central magnetic field generator 103b. That is, the magnetic field spreads in a substantially semicircular shape with the diameters of the magnetic flux generation surface 11 where the magnetic field lines Φ2 are generated and the convergent magnetic flux generation surface 11 are approximately diameters.

  Further, by switching control by the control device 4, the operation may be switched to the operation in which the coil 8 of the magnetic field generator 103b and the magnetic field generator 103c are energized without energizing the coil 8 of the magnetic field generator 103a. As a result, the magnetic field line Φ2 on the left side disappears and the magnetic field line Φ3 on the right side is generated. Thus, by switching the energization of the coil 8 by the control device 4, the position of the magnetic field can be changed and applied to the human body.

  Further, as shown in FIG. 14C, the control device 4 performs an operation of energizing the coils 8 of the magnetic field generators 103a and 103c at both ends. As a result, the magnetic force line Φ4 is generated from the rightmost magnetic field generator 103c and converges to the leftmost magnetic field generator 103a. That is, the magnetic field at this time spreads in a substantially semicircular shape toward the human body with the magnetic flux generation surface 11 where the magnetic field line Φ4 is generated and the convergent magnetic flux generation surface 11 as a substantial diameter.

  Here, the magnetic force line Φ4 spreads over a wide range because the distance between the magnetic flux generation surfaces 11 is longer than the magnetic force line Φ2 shown in FIG. Thereby, magnetism can be worked to the deep part of a human body, and the effect of magnetic therapy can be heightened.

  Moreover, you may make it selectively switch the example of the driving | operation shown to FIG. 14 (A) thru | or (C) by the operation part 5 (refer FIG. 1). Thereby, since the position where the magnetism is applied can be switched by operating the operation unit 5 without changing the way of contact between the human body and the magnetic treatment device 1, it becomes easier to use.

  In addition, the operation examples shown in FIGS. 14A to 14C may be automatically switched. For example, you may employ | adopt the driving | operation method which switches the example shown to FIG. 14 (A) thru | or (C) in order for a fixed time.

  Further, for example, after any one of the operations shown in FIGS. 14A to 14C is performed for a certain period of time, all the coils 8 and the auxiliary coils 17 are turned off or weakened so that no magnetic field is generated or weakened. You may perform the driving | running method which pinches | interposes the rest time to perform for a predetermined time. Thereby, the heat which generate | occur | produces from the coil 8 can be adjusted suitably.

  In addition, the amount of magnetism acting on the human body can be adjusted by appropriately switching the polarity of the plurality of coils 8. For example, the direction of the current flowing through all the coils 8 may be unified, that is, the polarity of the magnetic field generated by the coils 8 may be the same. Thus, the coil 8 operates as a large coil formed by combining the plurality of coils 8, and the strength of the magnetic field generated from the magnetic field generator assembly 633 can be increased.

  In other words, for a plurality of coils 8, the amount of heat generated from the coils 8 is effectively controlled by passing a current in the same direction, in the opposite direction, or only in a specific coil 8 and providing a break time. be able to.

  Moreover, you may switch the operating method of the some treatment unit 2 with which the magnetic therapy apparatus 1 is provided, respectively. Also by this, the position of the magnetic field applied to the human body can be changed.

  The control device 4 includes a circuit for switching the direction of the current flowing through the coil 8, a timer circuit for measuring time, and the like. As described above, the switching of the operation is controlled by the control device 4.

  FIG. 15A is a circuit diagram of the magnetic flux detector 40 according to the embodiment of the present invention, and FIG. 15B is a circuit diagram of the magnetic flux detector 140 having a bias circuit. As illustrated in FIG. 15A, the magnetic flux detector 40 includes a magnetic body 44, a coil 45 wound around the magnetic body 44, and a light emitting diode 41 (LED) connected to the coil 45.

  When the magnetic flux detector 40 is brought close to a magnetic field, the magnetic flux in the coil 45 changes, whereby a current corresponding to the strength of the magnetic flux flows through the coil 45 and the light emitting diode 41 is turned on. That is, according to the magnetic flux detector 40, the presence or absence of a magnetic field can be visually determined by lighting the light emitting diode 41. That is, since the magnetic flux detector 40 can visualize the magnetic field generated from the magnetic therapy device 1, it can be used for confirmation and adjustment of the output of the magnetic therapy device 1.

  Further, the light emitting diode 41 can be output to the outside with a signal of magnetic field information detected by the magnetic flux detector 40 in place of a signal conversion element such as a photocabra. Thereby, the strength of the magnetic field generated from the magnetic therapy device 1 can be measured.

  Further, the magnetic flux detector 40 can be connected to the control device 4 (see FIG. 1) of the magnetic therapy device 1 so that the control device 4 can be informed of the presence / absence and strength of the magnetic flux. As a result, the control device 4 can perform control such as automatically increasing the output of the magnetic field generator 3 (see FIG. 1), for example, when the magnetic field generated due to the difference in power supply frequency is weak.

  That is, the control device 4 selects the coil 8 to be energized (see FIG. 2) based on the magnetic field information detected by the magnetic flux detector 40, switches the tap and polarity of the coil 8, and the magnitude of the current flowing through the coil 8. Is preferably controlled. Thereby, the magnetic therapy device 1 can generate a magnetic field suitable for treatment, and exhibits a suitable therapeutic effect.

  Further, as shown in FIG. 15B, a magnetic flux detector 140 having a bias circuit using a resistor 42, a DC power source 43, or the like may be used. Thus, according to the magnetic flux detector 140 to which the bias circuit is added, the sensitivity of magnetic field detection can be improved.

  In addition, this invention is not limited to the said embodiment, In addition, a various change implementation is possible in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Magnetic therapy device 2 Treatment unit 3, 103, 203, 303, 803 Magnetic field generator 4 Control apparatus 5 Operation part 6 Temperature sensor 7 Bobbin 8 Coil 9 Substrate 10, 110, 210, 310 Iron core 11, 211, 311 Magnetic flux generation surface 12 Central part 13, 313 Base part 14 Peripheral part 15, 315 Upper side part 16 Connecting iron core 17 Auxiliary coil 18 Bobbin 19 Engaging part 20 Claw part 22 Ridge part 23, 24, 25 End part 30 Insulating material 33, 433, 533, 633 , 733, 833 Magnetic field generator assembly 35, 36, 37 Iron core

Claims (7)

A magnetic field generator having an iron core inside a coil for generating a magnetic field;
The iron core is disposed outside one end of the coil and extends in the radial direction of the coil, and protrudes from an intermediate portion of the base and is inserted into the coil along the axis of the coil. And a magnetic flux generating surface that is formed in the vicinity of the tip of the central portion that protrudes from the other end of the coil and that faces the outside in the axial direction of the coil. Treatment device.   The magnetic therapy device according to claim 1, wherein the iron core has a peripheral portion extending in the same direction as the central portion from the vicinity of the end portion of the base portion.   The magnetic treatment according to claim 1, wherein the iron core has an upper side portion provided in the vicinity of a distal end portion of the center portion and extending in a radial direction of the coil outside the coil. vessel. A plurality of the magnetic field generators,
The magnetic field generators are arranged on the same plane with the central portions parallel and in the same direction,
The magnetic therapy device according to any one of claims 1 to 3, wherein the adjacent magnetic field generators are arranged so that ends of the respective base portions are opposed to each other.   The magnetic therapy device according to claim 4, wherein the adjacent magnetic field generators are connected to each other in the vicinity of an end portion of the base portion by a connecting iron core.   The magnetic therapy device according to claim 5, further comprising an auxiliary coil wound around the connecting iron core.   The magnetic therapy device according to any one of claims 4 to 6, further comprising a control device that selectively switches each of the coils of the magnetic field generator and causes a current to flow through the coils.

Images