KR102179265B1 - Sound wave vibration heating mat having sound wave actuator - Google Patents

Abstract

The present invention relates to a sonic vibration heating mat. The sonic vibration heating mat comprises: a cushion that supports the body of a user and has at least one sonic vibrator inserted thereinto; a heat transfer plate disposed on the upper surface of the cushion to generate heat; and at least one sonic vibrator inserted into the cushion and vibrating the body of the user, wherein the at least one sonic vibrator generates vibrations in a sonic vibration method that generates vibrations by vertically moving a permanent magnet and a magnet fixing bracket placed in a magnetic field as the magnetic field in which the direction of a magnetic force line is changed is generated by a voice coil.

Description

Sound wave vibration heating mat having sound wave actuator}

It relates to a sonic vibration heating mat, and more specifically to a sonic vibration heating mat having a sonic vibrator.

Modern society suffers from various diseases such as muscle stiffness, chronic fatigue, and muscle spasms due to various stresses in work and daily life. In order to relieve such muscle stiffness and nerve fatigue, the number of people receiving massage is increasing. Conventional massage is performed in such a way that a person directly presses a part of the body using a hand or a tool.

As the number of people receiving massage gradually increases, various massage machines that can perform massage using machines other than humans have been developed. Examples of the massage machine may include a massage chair, a calf massage, a foot massage, and the like. In general, such a massaging machine uses a vibration method by a motor or an actuator.

Conventionally, a motor or an actuator has been applied only to a massage machine, but recently, a massage device is also installed in a matrix of a bed. However, since conventional motors and actuators are manufactured to have a predetermined size or more to apply sufficient pressure or vibration to a human body, there is a problem that it is difficult to be inserted into a matrix.

Alternatively, in the case of a conventional vibration mat device, a small motor or actuator is inserted into the matrix, but there is a problem in that the magnitude of vibration generated by the small motor is very small. In the case of vibration generated by a small motor, the magnitude of the vibration is not strong, and thus there is a problem that the vibration is not transmitted to the user lying on the matrix due to the elasticity of the matrix.

Korean Patent Application Publication No. 10-2003-0073085

It is to provide a sonic vibration heating mat including a sonic actuator. Further, it is not limited to the technical problems as described above, and another technical problem may be derived from the following description.

A sound wave vibration heating mat according to an embodiment of the present invention includes a cushion panel for supporting a user's body; A heat transfer plate disposed on an upper surface of the cushion panel to generate heat; And at least one acoustic vibrator built in the cushion panel to vibrate the cushion panel, wherein the at least one acoustic vibrator is located in the magnetic field as a magnetic field in which a direction of a magnetic force line is changed is generated by a voice coil. As the permanent magnet and the magnet fixing bracket move up and down, vibration is generated by a sonic vibration method that generates vibration of the cushion panel.

The acoustic vibration heating mat according to an embodiment of the present invention controls the intensity and frequency of vibration of the at least one acoustic vibrator by controlling the magnitude and frequency of the AC type current input to the voice coil of the at least one acoustic vibrator. The control box further comprises a control box, wherein the control box receives sound source information, and controls the at least one sound wave vibrator based on the received sound source information.

The sonic vibrator includes a cylindrical bobbin having a winding groove formed on an outer peripheral surface thereof; A voice coil wound around the winding groove of the bobbin; A magnet fixing bracket formed in a rivet shape and inserted into the hollow of the bobbin; A permanent magnet positioned between the inner circumferential surface of the bobbin and the outer circumferential surface of the magnet fixing bracket by being fitted in the body part of the magnet fixing bracket in a ring shape and forming a magnetic field in the hollow of the bobbin; And a plurality of tornado leaf springs positioned on the upper and lower surfaces of the bobbin in the form of a wheel in which a plurality of spokes are arranged in a tornado shape, and the tornado leaf spring by vertical movement of the permanent magnet and the magnet fixing bracket The up-and-down motion of the tornado leaf spring increases from the outside to the center of the spokes due to the tornado shape of the plurality of spokes, thereby amplifying the vibration of the tornado leaf spring.

The tornado leaf spring is a rim fixed between the bobbin and the actuator housing in a ring shape; A center ring disposed at the center side of the tornado leaf spring in a ring shape and coupled to the magnet fixing bracket; And three spokes that connect the rim and the center ring in a bow shape and are arranged in a tornado shape between the rim and the center ring, and each of the three spokes is connected to a point connected to the center ring and the rim. The angle between the points is 120°.

An inner groove is formed on the inner circumferential surface of the hollow of the bobbin from the upper surface of the bobbin to the lower surface of the bobbin so that air flows, and when the permanent magnet and the magnet fixing bracket move up and down in the hollow of the bobbin, the permanent magnet And the air above and below the magnet fixing bracket flows through the inner groove, so that the permanent magnet and the magnet fixing bracket do not receive air resistance in the hollow of the bobbin.

The inner groove is formed in a spiral form from an upper surface to a lower surface of the bobbin on the inner circumferential surface of the bobbin, and the spirally formed inner groove is formed to rotate the inner circumferential surface of the bobbin once.

An exhaust port through which air flowing through the hollow of the bobbin is discharged is formed on the side surface of the bobbin, and when the permanent magnet and the magnet fixing bracket move up and down in the hollow of the bobbin, the permanent magnet and Air in the hollow of the bobbin compressed by the magnet fixing bracket is discharged to the outside of the bobbin through the exhaust port.

The sonic vibration heating mat includes at least one heat transfer plate and at least one sonic vibrator, and the heat transfer plate generates heat and the sonic vibrator generates vibration. Here, the sonic vibration heating mat generates vibration using a sonic vibrator rather than vibration caused by a motor. The sonic vibrator generates vibration by applying current to the voice coil located in the magnetic field of the permanent magnet and converting it into sound wave vibration caused by the vertical movement of the permanent magnet. The vibration generated by the sonic vibrator is transmitted to the user lying on the sonic vibrating heating mat, and the user's mind and body can be relaxed.

In addition, the sonic vibration heating mat generates vibration by using a sonic actuator that generates vibration in a sonic vibration method as described above, and such a sonic actuator can generate large vibration with a small size compared to the conventional motor. . Accordingly, a sound wave actuator can be inserted into a thin mat, and a user's body lying on the mat can be massaged even on a thin mat. As the sonic vibration heating mat generates vibration through the sonic vibration method, the user's body can be vibrated and massaged without mechanical noise such as the sound of rotation of the motor or the sound of gears. Accordingly, the user can receive a massage without noise.

In addition, the sonic actuator includes a permanent magnet moving up and down in the hollow of the bobbin and a tornado plate spring that moves up and down according to the magnet fixing bracket, and the tornado plate spring includes a plurality of spokes in the form of a bow, and a plurality of Since the spokes are arranged in a tornado shape between the rim and the center ring of the tornado leaf spring, the maximum movable distance of the center ring of the tornado leaf spring is increased. As described above, as the maximum movable distance of the center ring of the tornado-type leaf spring increases, the sonic actuator can generate stronger vibrations and the durability of the leaf spring is improved.

In addition, the bobbin of the sonic actuator has a winding groove in which the voice coil is wound on an outer circumferential surface of the bobbin, and an inner groove through which air flows is formed from the top to the bottom of the bobbin. When the permanent magnet and the magnet fixing bracket move up and down in the hollow of the bobbin, the air above and below the permanent magnet and the magnet fixing bracket flows through the inner groove, so that the permanent magnet and the magnet fixing bracket are not affected by air resistance, and the bobbin is hollow. The speed of the vertical movement of the permanent magnet and the magnet fixing bracket is not slowed within. Since the permanent magnet and the magnet fixing bracket are not subject to air resistance in the hollow of the bobbin, even if the same current is supplied to the voice coil as they move rapidly, stronger vibration than the conventional sonic actuator can be generated. Accordingly, the energy efficiency of the acoustic actuator is improved.

1 is a view showing a sound wave vibration heating mat including a sound wave actuator according to an embodiment of the present invention.
FIG. 2 is an exploded view of the sonic vibration heating mat shown in FIG. 1.
3 is an exploded view of the sonic vibrator shown in FIG. 2.
4 is an exploded view of the acoustic actuator shown in FIG. 3.
5 is a view showing a tornado leaf spring shown in FIG. 4.
6 is a diagram illustrating the bobbin shown in FIG. 4.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. Embodiments of the present invention relate to a sonic vibration heating mat including a sonic vibrator. More specifically, an embodiment of the present invention relates to an actuator having improved vibration intensity and durability than a conventional actuator. To those of ordinary skill in the art to which the embodiments of the present invention belong, the “sound wave actuator” to be described below is a device that generates vibration of a diaphragm using a permanent magnet, a voice coil, and a bobbin in a manner similar to that of a speaker. I can understand.

FIG. 1 is a view showing a thermal vibration mat including a sonic actuator according to an embodiment of the present invention, and FIG. 2 is an exploded view of the sonic vibration thermal mat shown in FIG. 1. 1 and 2, the sonic vibration heating mat 1 includes a cover 11, at least one heat transfer plate 12, a temperature sensor 13, a cushion panel 14, at least one sonic vibrator 20, and It includes a control box (15). The cover 11 is a rectangular parallelepiped case with an open bottom surface, and a heat transfer plate 12, a temperature sensor 13, a cushion panel 14, at least one acoustic vibrator 20, and a control box 15 are disposed therein. . The upper surface of the cover 11 in contact with the user's body may be made of artificial leather, natural leather, or the like.

The heat transfer plate 12 is formed in the shape of a square plate that generates heat. The heat transfer plate 12 includes a square plate and a heating wire built into the square plate. Heated wires are wires that generate heat. In general, the heat transfer plate 12 is made of a metal having high thermal conductivity in order to transfer heat generated by the heating wire. The temperature sensor 13 is disposed under the heat transfer plate 12 and senses the temperature of the heat transfer plate 12.

The cushion panel 14 supports the user's body. At least one acoustic vibrator 20 is built into the cushion panel 14. The cushion panel 14 includes an upper cushion panel 141 disposed between the heat transfer plate 12 and the acoustic vibrator 20 and a lower cushion panel 142 surrounding the acoustic vibrator 20. The upper cushion panel 141 is formed in a rectangular flat plate shape and is located under the heat transfer plate 12. The lower cushion panel 142 has at least one insertion groove into which at least one acoustic vibrator 20 is inserted in a central portion, and is formed in a rectangular flat plate shape. The lower cushion panel 142 is located under the upper cushion panel 141. The lower cushion panel 142 fixes the acoustic vibrator 20 inserted into the insertion groove () in the center. The upper cushion panel 141 and the lower cushion panel 142 may be made of a material such as urethane foam or expanded polypropylene (EPP).

The acoustic vibrator 20 is formed in a disk shape, and is inserted into an insertion groove of the lower cushion panel 142 to vibrate the cushion panel 141. The sonic vibrator 20 is a sonic vibration method that converts an AC-type electrical signal applied to the voice coil 219 located in the magnetic field generated by the permanent magnet 217 into vibration caused by the vertical motion of the voice coil 219. It generates vibration. More specifically, the sonic vibrator 20 inputs an alternating current type current to the voice coil 219 included in the sonic vibrator 20 and inputs an alternating current type current to the voice coil 219, so that the voice coil 219 ) Creates a magnetic field in which the direction of the magnetic force line is variable. The permanent magnet 217 and the magnet fixing bracket 215 positioned in the magnetic field generated by the voice coil 219 are repeatedly moved up and down in the magnetic field as the direction of the magnetic force line is changed. Summarizing the above, the acoustic vibrator 20 generates a magnetic field in which the direction of the magnetic force line is changed by the voice coil 219, so that the permanent magnet 217 and the magnet fixing bracket 215 are Vibration of the cushion panel 14 is generated by a sound wave vibration method that generates vibration as it moves up and down. According to a preferred embodiment, the effective value of the AC current input to the voice coil 219 is 30 to 50V, and the frequency is 2 to 10Hz. The acoustic vibrator 20 will be described in detail below.

The control box 15 controls the operation of the sonic vibration heating mat 1. The control box 15 controls the on-off of the heating wire built in the heat transfer plate 12 to control the temperature of the sonic vibration heating mat 1 and at the same time, the current supplied to the voice coil 219 of the sonic vibrator 20 By controlling the intensity and frequency of the sound wave vibrator 20, the intensity and vibration frequency of the vibration generated by the sound wave vibrator 20 are controlled.

More specifically, the control box 15 receives the temperature value sensed by the temperature sensor 13 and controls the on/off of the heating wire of the heat transfer plate 12 based on the received temperature value. The control box 15 controls the magnitude and frequency of the AC type current input to the voice coil 219 of the sonic vibrator 20. The control box 15 may adjust the intensity and vibration frequency of the vibration generated by the acoustic vibrator 20. The control box 15 controls the temperature of the heat transfer plate 12 and the intensity and vibration frequency of the vibration generated by the sonic vibrator 20 according to a command input through the remote controller 16 or the input module.

The control box 15 may receive sound source information through an input module or a communication module. The control box 15 may generate a control signal for controlling the operation of the acoustic vibrator 20 based on the received sound source information. For example, the control box 15 extracts the frequency of the sound source and the loudness of the sound source from the received sound source information, and an AC current having a frequency of the same frequency as the frequency of the extracted sound source and an intensity proportional to the loudness of the sound source. Create The control box 15 inputs the generated alternating current into the voice coil 219 of the sonic vibrator 20 so that the sonic vibrator 20 generates vibrations having a frequency and intensity associated with the received sound source information. Accordingly, music and massage can be provided to the user lying on the sonic vibration heating mat 1.

The sonic vibration heating mat 1 according to the embodiments of the present invention includes a remote controller 16 and a remote controller 16 for inputting the temperature and vibration of the sonic vibration heating mat 1 in addition to the above-described components. A remote controller cradle 17, an input module capable of inputting sound source information, intensity and frequency of vibration, and the like, and a communication module capable of wirelessly communicating with a user device such as a smartphone may be further included. Further, although not shown in the drawings of the present invention, it further includes a power supply unit (not shown) for supplying driving power to each component of the sonic vibration heating mat (1). As described above, detailed descriptions of components that are obvious to those of ordinary skill in the art to which the present embodiment pertains will be omitted in order to prevent the features of the present embodiment from being blurred.

3 is an exploded view of the sonic vibrator shown in FIG. 2. Referring to FIG. 3, the sonic vibrator 20 included in the sonic vibrating heating mat 1 according to the present embodiment includes a case 22 and a sonic actuator 21. The case 22 of the acoustic vibrator 20 has a disk shape with an accommodation space formed therein, and is composed of an upper case 22 and a lower case 22. The upper case 22 has a disk shape with an open lower surface, and a sound wave actuator 21 is positioned therein. The upper case 22 amplifies the vibration as the upper surface of the upper case 22 moves up and down according to the vibration of the acoustic actuator 21 located therein.

The lower case 22 has a disk shape with an open top surface, and the acoustic actuator 21 is positioned therein. The lower case 22 includes a plurality of protrusions to which the acoustic actuator 21 is fixed. The lower case 22 is coupled in such a manner that it is inserted into the open lower surface of the upper case 22 with the open upper surface of the lower case 22 facing upward. The upper case 22 and the lower case 22 are combined to form a disc with the upper and lower surfaces closed.

The upper surface of the upper case 22 and the lower surface of the lower case 22 of the acoustic vibrator 20 vibrate according to the vertical motion of the tornado plate spring 214 of the acoustic actuator 21 like a vibration plate of a speaker.

4 is an exploded view of the acoustic actuator shown in FIG. 3. Referring to FIG. 4, the sonic actuator 21 includes a sponge 211, an actuator housing 212, a rubber packing 213, a tornado plate spring 214, a magnet fixing bracket 215, and a magnetic protection plate 216. , A permanent magnet 217, a bobbin 218, and a voice coil 219. The acoustic actuator 21 according to embodiments of the present invention may further include general components constituting the actuator such as bolts, nuts, washers, packings, etc. in addition to the above-described components.

The sponge 211 is disposed between the case 22 of the sonic vibrator 20 and the actuator housing 212 of the sonic actuator 21, and when the sonic actuator 21 vibrates, the case 22 and the actuator housing 212 ) To mitigate the impact. The sponge 211 includes an upper surface sponge disposed between the lower surface of the upper case 22 and the upper surface of the actuator housing 212 and a lower surface sponge disposed between the upper surface of the lower case 22 and the lower surface of the actuator housing 212 do. As described above, the sponge 211 is disposed on the upper and lower surfaces of the actuator housing 212 so that when the sonic actuator 21 vibrates in the vertical direction inside the sonic vibrator 20, the actuator housing 212 and the sonic vibrator ( It is possible to prevent damage by buffering the impact between the cases 22 of 20).

The actuator housing 212 has a cylindrical shape with an accommodation space therein, and a radius of a circular bottom surface is longer than the height of the cylinder. Inside the actuator housing 212, the main components of the acoustic actuator 21 are rubber packing 213, a tornado leaf spring 214, a magnet fixing bracket 215, a magnet protection plate 216, a permanent magnet 217. , A bobbin 218, and a voice coil 219 are located. The actuator housing 212 is composed of an actuator body 2122 in a cylindrical shape with an open upper surface and an actuator cap 2121 coupled to the open upper surface of the actuator body 2122 in a disk shape.

The rubber packing 213 is formed in a ring shape, and is positioned between the actuator housing 212 and the tornado leaf spring 214. The rubber packing 213 is made of a rubber material. The rubber packing 213 is disposed between the actuator housing 212 and the tornado leaf spring 214 to prevent the rim 2143 of the tornado leaf spring 214 from being damaged. The sonic actuator 21 includes two rubber packings 213. One rubber packing 213 is located between the upper tornado plate spring 214 and the actuator cap 2121, and the other rubber packing 213 is the lower tornado plate spring 214 and the actuator body 2122 It is located between.

The tornado leaf spring 214 is formed in a wheel shape and includes spokes 2142 arranged in a tornado shape. More specifically, the tornado-shaped leaf spring 214 includes a ring-shaped rim 2143, a ring-shaped center ring 2141 positioned at the center side, and a spoke connecting the rim 2143 and the center ring 2141 ( 2142). The center ring 2141 and the rim 2143 are concentric circles. In general, the tornado leaf spring 214 is made of a rubber material. The tornado leaf spring 214 is coupled to the upper and lower surfaces of the bobbin 218, respectively.

The rim 2143 of the tornado leaf spring 214 is fixed by the actuator housing 212. The center ring 2141 of the tornado leaf spring 214 moves up and down according to the vertical movement of the permanent magnet 217 and the magnet fixing bracket 215 located in the bobbin 218. The two tornado leaf springs 214 located on the upper and lower surfaces of the actuator housing 212 are made of rubber and have elastic force, so the vertical movement caused by the permanent magnet 217 and the magnet fixing bracket 215 Amplify The tornado-shaped leaf spring 214 includes a plurality of spokes 2142 arranged in a tornado shape. The vertical movement of the tornado leaf spring 214 is the width of the vertical movement from the outside of each spoke 2142 toward the center by a tornado shape of a plurality of spokes 2142 connecting the center ring 2141 and the rim 2143 As this increases, the vibration of the tornado-shaped leaf spring 214 is amplified. Additional descriptions of the tornado leaf spring 214 will be described in detail below.

The magnet fixing bracket 215 is installed in the bobbin 218 in the form of a rivet through which the center is passed. The magnet fixing bracket 215 fixes the ring-shaped permanent magnet 217 in the bobbin 218. The magnet fixing bracket 215 is composed of a head in the form of a disk and a body in the form of a cylinder having a radius smaller than that of the disk. The permanent magnet 217 in the form of a ring is fixed to the body portion of the magnet fixing bracket 215 in such a manner as to fit. The magnet fixing bracket 215 moves together with the permanent magnet 217 when the ring-shaped permanent magnet 217 moves in the magnetic field generated by the voice coil 219.

The magnet protection plate 216 is formed in a ring shape and is inserted into each of the upper and lower surfaces of the permanent magnet 217. The magnet protection plate 216 is inserted between the upper surface of the permanent magnet 217 and the upper tornado plate spring 214 and between the lower surface of the permanent magnet 217 and the lower tornado plate spring 214. The magnet protection plate 216 prevents the permanent magnet 217 from being damaged when the permanent magnet 217 moves up and down.

The permanent magnet 217 is formed in a ring shape, and is positioned in the hollow of the bobbin 218. The permanent magnet 217 is inserted into the body part of the magnet fixing bracket 215 and inserted into the hollow of the bobbin 218 together with the magnet fixing bracket 215. The permanent magnet 217 is positioned between the inner peripheral surface of the bobbin 218 and the outer peripheral surface of the body portion of the magnet fixing bracket 215. The permanent magnet 217 continuously forms a magnetic field in the hollow of the bobbin 218. The permanent magnet 217 is fitted to the cylindrical body portion of the magnet fixing bracket 215. As the current flows in the voice coil 219 surrounding the outer circumferential surface of the bobbin 218, a magnetic field is formed by the voice coil 219, and the permanent magnet 217 receives a force in the vertical direction by Fleming's left-hand rule. Accordingly, the bobbin 218 moves in a vertical direction within the midbow.

The bobbin 218 is formed in a cylindrical shape in which the center is passed through and a winding groove 2181 into which the voice coil 219 is inserted is formed on the outer peripheral surface. The bobbin 218 has at least one winding groove 2181 in which the voice coil 219 is wound on the outer circumferential surface. The voice coil 219 is wound in at least one winding groove 2181 on the outer circumferential surface of the bobbin 218. A magnet fixing bracket 215 and a permanent magnet 217 are inserted into the hollow formed in the center of the bobbin 218. The permanent magnet 217 moves up and down in a vertical direction between the upper and lower surfaces of the bobbin 218 in the hollow of the bobbin 218. Further description of the bobbin 218 will be described in detail below.

The voice coil 219 is a thin metal wire through which an electric current flows, and is generally made of copper. The voice coil 219 is wound in at least one winding groove 2181 formed on the outer circumferential surface of the bobbin 218. When current is supplied to the voice coil 219 wound around the bobbin 218, the voice coil 219 forms a magnetic field. The line of magnetic force of the magnetic field formed by the voice coil 219 passes through the hollow of the bobbin 218.

When a current flows through the voice coil 219 wound on the outer circumferential surface of the bobbin 218, the voice coil 219 forms a magnetic field. The magnetic field formed by the voice coil 219 affects the permanent magnet 217 located in the hollow of the bobbin 218. By the magnetic field formed by the voice coil 219, the permanent magnet 217 moves up and down between the upper and lower surfaces of the bobbin 218 in the hollow of the bobbin 218. As the permanent magnet 217 moves up and down in the hollow of the bobbin 218, the magnet fixing bracket 215 for fixing the permanent magnet 217 also moves up and down. As the vertical movement of the magnet fixing bracket 215 and the permanent magnet 217 is transmitted to the tornado plate spring 214 disposed on the upper and lower surfaces of the bobbin 218, the center side of the tornado plate spring 214 is It moves up and down. In the above-described manner, the acoustic actuator 21 generates a vertical motion between the upper and lower surfaces of the acoustic vibrator 20.

Here, the rim of the tornado plate spring 214 that transmits the vertical movement of the magnet fixing bracket 215 and the permanent magnet 217 is fixed by the actuator housing 212 and the bobbin 218, and the tornado plate spring 214 The center ring 2141 located at the center side of) moves up and down according to the movement of the permanent magnet 217 and the magnet fixing bracket 215.

As described above, the acoustic actuator 21 according to the embodiments of the present invention includes a permanent magnet 217 and a magnet fixing bracket 215 in the hollow of the bobbin 218 according to the current supplied to the voice coil 219. It moves up and down, and this up and down motion is transmitted to the upper surface of the acoustic vibrator 20. In the above-described manner, the acoustic vibrator 20 generates vibration.

5 is a view showing a tornado leaf spring shown in FIG. 4. Referring to FIG. 5, the tornado leaf spring 214 is formed in a wheel shape consisting of an outer rim 2143, a center ring 2141 at a center side, and a plurality of spokes 2142. . When the permanent magnet 217 and the magnet fixing bracket 215 move up and down, the rim 2143 of the tornado leaf spring 214 is fixed by the actuator housing 212, whereas the center ring 2141 is permanent It moves up and down together with the magnet 217 and the magnet fixing bracket 215. The conventional leaf spring has a problem in that the spokes connecting the center of the leaf spring and the rim are frequently damaged due to strong vibration.

The rim 2143 of the tornado leaf spring 214 is formed in a ring shape, and is inserted and fixed between the bobbin 218 and the actuator housing 212. As the rim 2143 of the tornado leaf spring 214 is fixed by the bobbin 218 and the actuator housing 212, it does not move even if the permanent magnet 217 and the magnet fixing bracket 215 move up and down.

The center ring 2141 of the tornado leaf spring 214 is formed in a ring shape and is located at the center side of the tornado leaf spring 214. The hole of the center ring 2141 of the tornado plate spring 214 is arranged concentrically with the hole in the center of the magnet fixing bracket 215, and is coupled to the magnet fixing bracket 215 by a single bolt. As the center ring 2141 of the tornado plate spring 214 and the center of the magnet fixing bracket 215 are coupled, the center ring 2141 of the tornado plate spring 214 moves up and down together with the magnet fixing bracket 215 Moves. When the permanent magnet 217 and the magnet fixing bracket () move up and down in the hollow of the bobbin 218 due to the magnetic field generated by the voice coil 219 wound on the outer circumferential surface of the bobbin 218, a tornado leaf spring The center ring 2141 of 214 is moved up and down by the magnet fixing bracket 215. The acoustic actuator 21 generates vibration by the vertical movement of the center ring 2141 of the tornado leaf spring 214, and this vibration is transmitted to the upper and lower surfaces of the case of the acoustic vibrator 20.

Each of the plurality of spokes 2142 of the tornado leaf spring 214 is formed in a curved shape in a bow shape, is arranged in a tornado shape based on the center of the tornado leaf spring 214, and the center ring 2141 and the rim ( 2143). As described above, the rim 2143 of the tornado leaf spring 214 is fixed between the bobbin 218 and the actuator housing 212, and the center ring 2141 is coupled to the magnet fixing bracket 215 to provide a permanent magnet. (217) and the magnet fixing bracket 215 moves up and down according to the vertical movement. The spokes 2142 of the tornado leaf spring 214 connect the center ring 2141 and the rim 2143 even if the center ring 2141 of the tornado leaf spring 214 moves up and down. When the center ring 2141 moves up and down according to the vertical movement of the permanent magnet 217 and the magnet fixing bracket 215, a plurality of spokes 2142 connecting the rim 2143 and the center ring 2141 are in a tornado shape. As they are arranged, the width of the vertical movement of the tornado leaf spring 214 increases from the outside of each spoke 2142 to the center. The tornado-shaped leaf spring 214 moves up and down the largest at the center side.

The tornado-type leaf spring 214 according to the embodiment of the present invention includes two, three, four or five spokes 2142, and according to the most preferred embodiment, the tornado-type leaf spring 214 has three Includes spokes 2142. When the tornado leaf spring 214 includes two spokes 2142, while the maximum movable distance of the center ring 2141 from the rim 2143 is increased, durability is weak. On the other hand, when the tornado-type leaf spring 214 includes four or more spokes 2142, the durability of the tornado-type leaf spring 214 is improved, but the maximum movable distance of the center ring 2141 is reduced. When the tornado-shaped leaf spring 214 includes three spokes 2142, the maximum movable range of the center ring 2141 is increased compared to the conventional leaf spring, and durability is also improved.

The tornado-type leaf spring 214 according to the embodiment shown in FIG. 5 of the present invention includes three spokes 2142. The angular difference between the point where the spokes 2142 and the rim 2143 are connected and the point where the spokes 2142 and the center ring 2141 are connected is 120° from the center of the center ring 2141 and the rim 2143 to be.

As described above, the spokes 2142 of the tornado leaf spring 214 are formed in a bow shape, and are arranged in a tornado shape between the rim 2143 and the center ring 2141. The spokes of the conventional leaf spring are arranged radially and formed in a straight line. The spokes 2142 of the tornado leaf spring 214 according to the embodiment of the present invention are longer than the spokes of the conventional leaf spring. Accordingly, the tornado plate spring 214 in which a plurality of spokes 2142 connecting the rim 2143 and the center ring 2141 are arranged in a tornado shape is a conventional plate in which a plurality of spokes 2142 are arranged radially. Compared to the spring, the vertical movement of the center ring 2141 in the vertical direction is greater, and stronger vibration than the conventional leaf spring can be generated.

In addition, the spokes 2142 of the tornado plate spring 214 according to the embodiment of the present invention are formed in a curved arc shape, and as the length of the spokes 2142 becomes longer, durability is increased compared to the spokes of the conventional plate spring.

Each of the spokes 2142 of the tornado leaf spring 214 according to another embodiment of the present invention is formed in a curved arc shape, and the width of the spokes 2142 increases from the center to the outside. When the center ring 2141 moves up and down in the tornado leaf spring 214, the movement of the part close to the rim 2143 in the movement of the spoke 2142 is greater than the movement of the part close to the center ring 2141. For this reason, the closer the spokes 2142 to the rim 2143 in the tornado leaf spring 214, the stronger the force is received and breakage occurs frequently. In order to solve this problem, the spokes 2142 of the tornado-type leaf spring 214 according to another embodiment of the present invention increase the width of the spokes 2142 from the center side to the outside, and thus close to the rim 2143. Prevent damage that may occur in parts.

6 is a diagram illustrating the bobbin shown in FIG. 4. Referring to FIG. 6, the bobbin 218 is formed in a cylindrical shape with a center passing through and a winding groove 2181 formed on an outer circumferential surface thereof. At least one winding groove 2181 to which at least one voice coil 219 is wound is formed on the outer circumferential surface of the bobbin 218, and an inner groove 2182 through which air flows is formed on the hollow inner peripheral surface of the cylinder.

As described above, the permanent magnet 217 and the magnet fixing bracket 215 are fitted in the hollow of the bobbin 218, and the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow. The permanent magnet 217 and the magnet fixing bracket 215 are fitted into the hollow of the bobbin 218. The radius of the head of the rivet-shaped magnet fixing bracket 215 is less than or equal to the radius of the hollow of the bobbin 218. Accordingly, the gap between the inner peripheral surface of the bobbin 218 and the permanent magnet 217 and the magnet fixing bracket 215 is very small. As the permanent magnet 217 and the magnet fixing bracket 215 are fitted into the hollow of the bobbin 218, the air when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218. Due to the resistance, the permanent magnet 217 and the magnet fixing bracket 215 cannot move quickly.

The bobbin 218 of the acoustic actuator 21 according to embodiments of the present invention forms an inner groove 2182 on the inner peripheral surface of the hollow. The inner groove 2182 of the bobbin 218 is connected from the upper surface to the lower surface of the bobbin 218. The inner groove 2182 formed on the inner circumferential surface of the bobbin 218 is formed to extend from the upper surface to the lower surface of the bobbin 218, so that the permanent magnet 217 and the magnet fixing bracket 215 move within the hollow of the bobbin 218. At this time, the air above and below the permanent magnet 217 and the magnet fixing bracket 215 is circulated through the inner groove 2182. Accordingly, the movement of the magnet fixing bracket 215 in the hollow of the bobbin 218 does not receive air resistance. The permanent magnet 217 and the magnet fixing bracket 215 easily move up and down in the hollow of the bobbin 218. As the vertical movement of the permanent magnet 217 and the magnet fixing bracket 215 does not receive air resistance, vibration of the same magnitude may be generated with less current energy compared to a conventional actuator.

According to the embodiment shown in FIG. 6, the inner groove 2182 formed on the inner circumferential surface of the bobbin 218 is formed in a spiral form from the upper surface to the lower surface of the bobbin 218. The inner groove 2182 formed in a spiral shape on the inner peripheral surface of the bobbin 218 is formed so as to rotate the inner peripheral surface of the bobbin 218 by one turn. The inner groove 2182 is formed to surround the inner circumferential surface of the bobbin 218. The point where the inner groove 2182 meets the upper surface of the bobbin 218 and the point where the inner groove 2182 meets the lower surface of the bobbin 218 are located on the same straight line extending parallel to the height of the bobbin 218. Since the inner groove 2182 is formed to rotate the inner peripheral surface of the bobbin 218 by one turn, air can flow smoothly to the inner groove 2182 from any part of the inner peripheral surface of the bobbin 218.

When the inner groove 2182 is formed on one side of the inner peripheral surface of the bobbin 218 in a direction parallel to the height direction of the bobbin 218, the magnet fixing bracket 215 facing the inner peripheral surface of the portion where the inner groove 2182 is not formed. One side of) is subjected to air resistance. In this case, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, the portion of the magnet fixing bracket 215 adjacent to the inner groove 2182 affects the air resistance. While not receiving, the portion of the magnet fixing bracket 215 that is not adjacent to the inner groove 2182 receives air resistance. Accordingly, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, a problem of distortion may occur.

However, as described above, in the acoustic actuator 21 according to the embodiments of the present invention, the inner groove 2182 is formed to rotate the entire inner circumferential surface of the bobbin 218, so that the entire magnet fixing bracket 215 is air resistance. Not affected by Accordingly, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the bobbin 218, the magnet fixing bracket 215 is not distorted.

The bobbin 218 has an exhaust port 2183 penetrating the outer and inner circumferential surfaces on the side of the cylinder. The hollow air of the bobbin 218 is discharged to the outside of the bobbin 218 through the exhaust port 2183. As the exhaust port 2183 is formed on the side of the bobbin 218, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, the air in the hollow of the bobbin 218 is It is discharged to the outside of the bobbin 218 through the exhaust port 2183. Accordingly, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the bobbin 218, the permanent magnet 217 and the magnet fixing bracket 215 do not receive air resistance and can move up and down quickly. have.

When the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, the permanent magnet 217 and the magnet fixing bracket 215 are distant from the internal groove 2182 and the inner groove ( Compared to the part close to 2182), it receives relatively more air resistance. For this reason, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, the portion close to the inner groove 2182 first descends, and the portion far from the inner groove 2182 is air As it slowly descends due to resistance, there is a problem that the permanent magnet 217 and the magnet fixing bracket 215 are distorted. Due to the distortion of the permanent magnet 217 and the magnet fixing bracket 215, the permanent magnet 217 and the magnet fixing bracket 215 collide with the inner circumferential surface of the bobbin 218, so that the bobbin 218 and/or the permanent magnet ( 217) may be damaged.

The exhaust port 2183 is formed on the inner circumferential surface of the bobbin 218 at a position facing the inner groove 2182. As the exhaust port 2183 is formed in a position facing the inner groove 2182, when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, the pressurized air is the inner groove. It flows up and down in the hollow of the bobbin 218 through 2182, and is discharged to the outside of the bobbin 218 through an exhaust port 2183 formed on the opposite side of the inner groove 2182. As described above, as the exhaust port 2183 and the inner groove 2182 are formed at positions facing each other on the inner peripheral surface of the bobbin 218, the permanent magnet 217 and the magnet fixing bracket 215 are formed of the bobbin 218. When moving up and down in the hollow, the permanent magnet 217 and the magnet fixing bracket 215 are discharged to the outside of the bobbin 218 by an exhaust port 2183 formed at a position symmetrical with the inner groove 2182, thereby permanently The magnet 217 and the magnet fixing bracket 215 move up and down in an equilibrium state that maintains parallel to the upper and lower surfaces of the bobbin 218 without being distorted in the hollow of the bobbin 218.

As described above, the sonic vibration heating mat according to the embodiments of the present invention includes at least one heat transfer plate and at least one sonic vibrator, the heat transfer plate generates heat, and the sonic vibrator generates vibration. Here, the sonic vibration heating mat generates vibration using a sonic vibrator rather than vibration caused by a motor. The sonic vibrator generates vibration by applying current to the voice coil located in the magnetic field of the permanent magnet and converting it into sound wave vibration caused by the vertical movement of the permanent magnet. The vibration generated by the sonic vibrator is transmitted to the user lying on the sonic vibrating heating mat, and the user's mind and body can be relaxed.

In addition, the sonic vibration heating mat according to the embodiments of the present invention generates vibration using a sonic actuator that generates vibration in a sonic vibration method as described above, and this sonic actuator has a small size compared to the conventional motor. It can also generate large vibrations. Accordingly, a sound wave actuator can be inserted into a thin mat, and a user's body lying on the mat can be massaged even on a thin mat. As the sonic vibration heating mat generates vibration through the sonic vibration method, the user's body can be vibrated and massaged without mechanical noise such as the sound of rotation of the motor or the sound of gears. Accordingly, the user can receive a massage without noise.

In addition, the sonic actuator includes a permanent magnet moving up and down in the hollow of the bobbin and a tornado plate spring that moves up and down according to the magnet fixing bracket, and the tornado plate spring includes a plurality of spokes in the form of a bow, and a plurality of Since the spokes are arranged in a tornado shape between the rim and the center ring of the tornado leaf spring, the maximum movable distance of the center ring of the tornado leaf spring is increased. As described above, as the maximum movable distance of the center ring of the tornado-type leaf spring increases, the sonic actuator can generate stronger vibrations and the durability of the leaf spring is improved.

In addition, the bobbin of the sonic actuator has a winding groove in which the voice coil is wound on an outer circumferential surface of the bobbin, and an inner groove through which air flows is formed from the top to the bottom of the bobbin. When the permanent magnet and the magnet fixing bracket move up and down in the hollow of the bobbin, the air above and below the permanent magnet and the magnet fixing bracket flows through the inner groove, so that the permanent magnet and the magnet fixing bracket are not affected by air resistance, and the bobbin is hollow. The speed of the vertical movement of the permanent magnet and the magnet fixing bracket is not slowed within. Since the permanent magnet and the magnet fixing bracket are not subject to air resistance in the hollow of the bobbin, even if the same current is supplied to the voice coil as they move rapidly, stronger vibration than the conventional sonic actuator can be generated. Accordingly, the energy efficiency of the acoustic actuator is improved.

So far, we have looked at the center of the preferred embodiments for the present invention. Those of ordinary skill in the art to which the present invention pertains will be able to understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the above description, and all differences within the scope equivalent thereto should be interpreted as being included in the present invention.

1: sonic vibration heating mat
11: cover 12: heat plate
13: temperature sensor 14: cushion panel
15: control box 16: remote controller
17: remote controller cradle
20: sonic vibrator
21: sonic actuator 22: case
211: sponge 212: actuator housing
213: rubber packing 214: tornado leaf spring
215: magnet fixing bracket 216: magnet protection plate
217: permanent magnet 218: bobbin
219: voice coil

Claims (7)

A cushion panel 14 for supporting the user's body;
A heat transfer plate 12 disposed on the upper surface of the cushion panel 14 to generate heat; And
Includes at least one acoustic vibrator 20 built into the cushion panel 14 to vibrate the cushion panel 14,
As the at least one acoustic vibrator 20 generates a magnetic field in which the direction of the magnetic force line is changed by the voice coil 219, the permanent magnet 217 and the magnet fixing bracket 215 located in the magnetic field move up and down. As a result, vibration of the cushion panel 14 is generated by a sound wave vibration method that generates vibration,
The sonic vibrator 20 is
A cylindrical bobbin 218 having a winding groove 2181 formed on the outer circumferential surface;
A voice coil 219 wound in the winding groove 2181 of the bobbin 218;
A magnet fixing bracket 215 formed in a rivet shape and inserted into the hollow of the bobbin 218;
By being fitted in the body part of the magnet fixing bracket 215 in a ring shape, it is located between the inner circumferential surface of the bobbin 218 and the outer circumferential surface of the magnet fixing bracket 215 and forms a magnetic field in the hollow of the bobbin 218. Magnet 217; And
A plurality of spokes (2142) in the form of a wheel arranged in a tornado shape, including a plurality of tornado leaf springs 214 located on the upper and lower surfaces of the bobbin 218,
By the vertical movement of the permanent magnet 217 and the magnet fixing bracket 215, the tornado plate spring 214 moves up and down,
Vibration of the tornado leaf spring 214 by increasing the vertical movement width of the tornado leaf spring 214 from the outside to the center of the spokes 2142 due to the tornado shape of the plurality of spokes 2142 Is amplified,
An inner groove 2182 through which air flows by being connected from the upper surface of the bobbin 218 to the lower surface of the bobbin 218 is formed on the hollow inner peripheral surface of the bobbin 218,
When the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218, the air above and below the permanent magnet 217 and the magnet fixing bracket 215 is in the inner groove ( 2182), so that the permanent magnet 217 and the magnet fixing bracket 215 do not receive air resistance in the hollow of the bobbin 218. The method of claim 1,
A control box for controlling the intensity and frequency of vibration of the at least one acoustic vibrator 20 by controlling the magnitude and frequency of the AC type current input to the voice coil 219 of the at least one acoustic vibrator 20 ( 15),
The control box (15) receives sound source information and controls the at least one sound wave vibrator (20) based on the received sound source information. delete The method of claim 1,
The tornado leaf spring 214 is
A rim 2143 fixed between the bobbin 218 and the actuator housing 212 in a ring shape;
A center ring 2141 disposed at the center side of the tornado-shaped plate spring 214 in a ring shape and coupled to the magnet fixing bracket 215; And
It includes three spokes 2142 that connect the rim 2143 and the center ring 2141 in a bow shape and are arranged in a tornado shape between the rim 2143 and the center ring 2141,
Each of the three spokes 2142 has an angle of 120° between a point connected to the center ring 2141 and a point connected to the rim 2143. delete The method of claim 1,
The inner groove 2182 is formed in a spiral form from the upper surface to the lower surface of the bobbin 218 on the inner peripheral surface of the bobbin 218,
The spirally formed inner groove (2182) is a sonic vibration heating mat, characterized in that formed to rotate the inner circumferential surface of the bobbin (218). The method of claim 6,
An exhaust port 2183 through which air flowing through the hollow of the bobbin 218 is discharged is formed on the side surface of the bobbin 218 through the outer and inner circumferential surfaces,
The bobbin 218 compressed by the permanent magnet 217 and the magnet fixing bracket 215 when the permanent magnet 217 and the magnet fixing bracket 215 move up and down in the hollow of the bobbin 218 ) Of the hollow air is discharged to the outside of the bobbin (218) through the exhaust port (2183).

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