A magnetostrictive transducer
By improving the structural design of the magnetostrictive transducer and utilizing a combination of permanent magnets and magnetostrictive bodies, along with guiding and amplification mechanisms, a larger vibration force and amplitude were achieved, solving the problem of insufficient vibration force in traditional magnetostrictive transducers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-01
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional magnetostrictive transducers have insufficient vibration strength and need to be improved to enhance their vibration performance.
It adopts a structure consisting of permanent magnets, magnetostrictive bodies and coils. It achieves effective energy transduction through two magnetostrictive bodies and uses components such as circular sleeves, vertical columns, collars, protrusions and elastic rods for guidance and fixation. It combines levers and widened columns to amplify the vibration amplitude.
It achieves greater vibration force and amplitude, effectively transmits mechanical energy, and is suitable for applications requiring greater vibration force.
Smart Images

Figure CN117123455B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a transducer, and more specifically to a magnetostrictive transducer. Background Technology
[0002] A magnetostrictive transducer is a device that converts magnetic field energy into mechanical deformation energy. It consists of two main parts: a magnetic material and a driving power source. In a magnetic material, when a magnetic field is applied, the magnetic moments of atoms or molecules rearrange, causing minute deformations in the material. These deformations can be detected and utilized. A magnetic field is generated by transmitting alternating current through a coil wound around the magnetic material. The driving power source sends current to the coil, thus generating the magnetic field. This magnetic field causes a change in the arrangement of atoms or molecules in the magnetic material, leading to deformation. This deformation is then converted into mechanical energy, such as generating sound waves or vibrations. Traditional magnetostrictive transducers generally produce weak vibrations, thus requiring improvements. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, the present invention provides a magnetostrictive transducer, which has the advantage of enabling effective energy exchange through two magnetostrictive bodies.
[0004] A magnetostrictive transducer includes a permanent magnet, magnetostrictive bodies, and coils. Magnetostrictive bodies are bonded to both the upper and lower sides of the permanent magnet, and the coils are sleeved on the outside of the permanent magnet and the two magnetostrictive bodies.
[0005] It also includes a circular sleeve and vertical columns. The permanent magnet is fitted with a circular sleeve on its outer side, and two vertical columns are arranged on the left and right sides, with the middle parts of the two vertical columns fixed to the two sides of the circular sleeve respectively.
[0006] It also includes a collar and protrusions. The magnetostrictive body is fitted with a collar, and protrusions are fixed on both sides of the collar. The two protrusions on the collar are slidably connected to the two vertical columns respectively.
[0007] It also includes elastic rods, with an elastic rod fixed on each of the protrusions, and the other end of each elastic rod fixed to the end of the corresponding vertical column.
[0008] It also includes a fixing strip, screw holes and a connecting post. The connecting post is fixed on the vertical post located at the right end, and a fixing strip is fixed to the end of the connecting post. The fixing strip is provided with multiple screw holes.
[0009] It also includes a connecting seat and a protruding post. The protruding post is fixed on the vertical post located at the left end, and the connecting seat is fixed on the protruding post. The coil is fixed on the connecting seat.
[0010] It also includes a convex shaft, a vertical rod, a lever, an elongated hole, and a hinge seat. The middle part of the vertical rod is fixed to the end of the convex column. The upper and lower ends of the vertical rod are both fixed with convex shafts. The end of each magnetostrictive body is glued with a hinge seat. A lever is hinged on the hinge seat. An elongated hole is provided on the lever. The convex shaft is inserted into the elongated hole.
[0011] It also includes a widening column, which is fixed to the end of the lever.
[0012] It also includes convex blades, with multiple convex blades fixed in a ring on each widened column.
[0013] The coil is connected to a power source via a wire. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.
[0015] Figure 1 A schematic diagram of the structure of a magnetostrictive transducer Figure 1 ;
[0016] Figure 2 A schematic diagram of the structure of a magnetostrictive transducer Figure 2 ;
[0017] Figure 3 A schematic diagram of the structure of a magnetostrictive transducer Figure 3 ;
[0018] Figure 4 This is a schematic diagram of the permanent magnet and the fixing bar.
[0019] Figure 5 Schematic diagram of coil structure Figure 1 ;
[0020] Figure 6 Schematic diagram of coil structure Figure 2 ;
[0021] Figure 7 A schematic diagram of the lever structure Figure 1 ;
[0022] Figure 8 A schematic diagram of the lever structure Figure 2 .
[0023] In the diagram: permanent magnet 101; circular sleeve 102; vertical column 103; magnetostrictive body 104; collar 105; elastic rod 106; protrusion 107;
[0024] Fixing strip 201; Screw hole 202; Connecting post 203;
[0025] Coil 301; Shaft 302; Post 303; Connector 304; Column 305;
[0026] Lever 401; Elongated hole 402; Hinge seat 403; Widened column 404; Lug 405. Detailed Implementation
[0027] A magnetostrictive transducer includes a permanent magnet 101, magnetostrictive bodies 104, and a coil 301. Magnetostrictive bodies 104 are bonded to both the upper and lower sides of the permanent magnet 101, and the coil 301 is sleeved on the outside of the permanent magnet 101 and the two magnetostrictive bodies 104.
[0028] like Figure 4-6 As shown, this example can achieve effective energy transduction through two magnetostrictive bodies, resulting in a relatively large vibration force.
[0029] When the coil 301 is energized, the magnetostrictive body 104 is subjected to magnetic force and continuously elongates and shortens. Since there are two magnetostrictive bodies 104, the two magnetostrictive bodies 104 vibrate simultaneously, thereby effectively exchanging energy through the two magnetostrictive bodies, and the vibration force is relatively large.
[0030] A magnetostrictive transducer further includes a circular sleeve 102 and vertical columns 103. The circular sleeve 102 is sleeved on the outer side of the permanent magnet 101, and two vertical columns 103 are arranged on the left and right sides, with the middle parts of the two vertical columns 103 respectively fixed on both sides of the circular sleeve 102.
[0031] like Figure 4 As shown, this example can achieve the effect of making the magnetostrictive body 104 stretch or contract along the axial direction of the permanent magnet 101.
[0032] The two vertical columns 103 can be fixed on both sides of the permanent magnet 101 by the circular sleeve 102. The two vertical columns 103 guide the magnetostrictive body 104, so that the magnetostrictive body 104 can extend and retract along the axial direction of the permanent magnet 101.
[0033] A magnetostrictive transducer further includes a collar 105 and protrusions 107. The collar 105 is fitted onto the magnetostrictive body 104, and protrusions 107 are fixed on both sides of the collar 105. The two protrusions 107 on the collar 105 are slidably connected to the two vertical columns 103 respectively.
[0034] like Figure 4 As shown, this example can achieve the effect of making the magnetostrictive body 104 stretch or contract in the correct direction.
[0035] A collar 105 is provided on the outer side of the magnetostrictive body 104, and a protrusion 107 is connected to both sides of the magnetostrictive body 104. When the magnetostrictive body 104 extends or retracts, the two protrusions 107 also move accordingly, so that the two protrusions 107 slide on the two vertical columns 103 respectively, so that the magnetostrictive body 104 extends or retracts along the axis of the permanent magnet 101, so that the magnetostrictive body 104 extends or retracts in the correct direction.
[0036] A magnetostrictive transducer also includes an elastic rod 106, with an elastic rod 106 fixed on each of the protrusions 107, and the other end of each elastic rod 106 fixed to the end of the corresponding vertical column 103.
[0037] like Figure 4 As shown, this example can achieve the effect of easily returning the magnetostrictive body 104 to its original position after it has been stretched.
[0038] Multiple elastic rods 106 respectively exert force on multiple protrusions 107 to move towards the permanent magnet 101, so that the two collars 105 and the two magnetostrictive bodies 104 always have a tendency to move inward, thereby allowing the two magnetostrictive bodies 104 to press against the permanent magnet 101, which facilitates the return of the magnetostrictive bodies 104 after they have been extended.
[0039] A magnetostrictive transducer further includes a fixing strip 201, screw holes 202 and a connecting post 203. The connecting post 203 is fixed on the vertical post 103 located at the right end, and the fixing strip 201 is fixed to the end of the connecting post 203. The fixing strip 201 is provided with a plurality of screw holes 202.
[0040] like Figure 4 As shown, this example demonstrates how to fix a magnetostrictive transducer in the desired location.
[0041] Screws can be inserted into the screw holes 202 on the fixing strip 201, thereby fixing the fixing strip 201 in the required position, and thus fixing the magnetostrictive transducer in the required position.
[0042] A magnetostrictive transducer further includes a connector 304 and a protrusion 305. The protrusion 305 is fixed on the vertical column 103 located at the left end, and the connector 304 is fixed on the protrusion 305. The coil 301 is fixed on the connector 304.
[0043] like Figure 5-6 As shown, this example can achieve the effect of fixing the coil 301 to the outside of the permanent magnet 101 and the magnetostrictive body 104.
[0044] The coil 301 can be fixed on the outside of the vertical column 103 by means of the connecting seat 304 and the protrusion 305, thereby fixing the coil 301 on the outside of the permanent magnet 101 and the magnetostrictive body 104.
[0045] A magnetostrictive transducer further includes a convex shaft 302, a vertical rod 303, a lever 401, an elongated hole 402, and a hinge seat 403. The middle part of the vertical rod 303 is fixed to the end of the convex post 305. The upper and lower ends of the vertical rod 303 are both fixed with convex shafts 302. The end of each magnetostrictive body 104 is bonded with a hinge seat 403. The lever 401 is hinged on the hinge seat 403. The lever 401 is provided with an elongated hole 402. The convex shaft 302 is inserted into the elongated hole 402.
[0046] like Figure 5-8 As shown, this example can achieve the effect of amplifying the stretching range of the magnetostrictive body 104.
[0047] When the magnetostrictive body 104 extends or retracts, the end of the magnetostrictive body 104 moves, thereby causing the corresponding hinge seat 403 to move, which in turn causes the lever 401 to rotate relative to the corresponding convex shaft 302. The convex shaft 302 can slide on the elongated hole 402, thereby causing the end of the lever 401 to vibrate with the extension and retraction of the magnetostrictive body 104, thus amplifying the extension and retraction amplitude of the magnetostrictive body 104.
[0048] A magnetostrictive transducer further includes a widened column 404, the end of which is fixed.
[0049] like Figure 7-8 As shown, this example can achieve the effect of amplifying the vibration.
[0050] When the end of lever 401 vibrates with the extension and retraction of magnetostrictive body 104, the widened column 404 vibrates with the end of lever 401, thereby increasing the size of the end of lever 401 and amplifying the vibration effect.
[0051] A magnetostrictive transducer also includes blades 405, with multiple blades 405 fixed in a ring on each widened column 404.
[0052] like Figure 7-8 As shown, this example can further amplify and widen the vibration effect of column 404.
[0053] Multiple convex blades 405 can increase the surface area of the widened column 404, and thus the vibration effect of the widened column 404 can be further amplified when the widened column 404 vibrates.
[0054] The coil 301 is connected to the power supply via a wire.
[0055] like Figure 5-6 As shown, this example demonstrates how to power coil 301 via a power source.
[0056] The coil 301 is powered by a power supply.
Claims
1. A magnetostrictive transducer, comprising a permanent magnet (101), a magnetostrictive body (104), and a coil (301), characterized in that: Magnetostrictive bodies (104) are bonded to both the upper and lower sides of the permanent magnet (101), and the coil (301) is sleeved on the outside of the permanent magnet (101) and the two magnetostrictive bodies (104). It also includes a circular sleeve (102) and vertical columns (103). The circular sleeve (102) is sleeved on the outside of the permanent magnet (101), and two vertical columns (103) are arranged on the left and right sides, with the middle parts of the two vertical columns (103) fixed on both sides of the circular sleeve (102). It also includes a collar (105) and a protrusion (107). The magnetostrictive body (104) is fitted with a collar (105), and protrusions (107) are fixed on both sides of the collar (105). The two protrusions (107) on the collar (105) are slidably connected to the two vertical columns (103). It also includes an elastic rod (106), and each of the protrusions (107) is fixed with an elastic rod (106), and the other end of each elastic rod (106) is fixed to the end of the corresponding vertical column (103); It also includes a fixing strip (201), screw holes (202) and a connecting post (203). The connecting post (203) is fixed on the vertical post (103) located at the right end. The fixing strip (201) is fixed at the end of the connecting post (203). The fixing strip (201) is provided with multiple screw holes (202). It also includes a connecting seat (304) and a protruding post (305). The protruding post (305) is fixed on the vertical post (103) located at the left end, and the connecting seat (304) is fixed on the protruding post (305). The coil (301) is fixed on the connecting seat (304). It also includes a convex shaft (302), a vertical rod (303), a lever (401), an elongated hole (402), and a hinge seat (403). The middle part of the vertical rod (303) is fixed to the end of the convex column (305). The upper and lower ends of the vertical rod (303) are both fixed with convex shafts (302). The end of each magnetostrictive body (104) is glued with a hinge seat (403). A lever (401) is hinged on the hinge seat (403). An elongated hole (402) is provided on the lever (401). The convex shaft (302) is inserted into the elongated hole (402).
2. The magnetostrictive transducer according to claim 1, characterized in that: It also includes a widening column (404), to which the end of the lever (401) is fixed.
3. A magnetostrictive transducer according to claim 2, characterized in that: It also includes convex blades (405), with multiple convex blades (405) fixed in a ring on each widened column (404).
4. A magnetostrictive transducer according to claim 3, characterized in that: The coil (301) is connected to the power source via a wire.
Citation Information
Patent Citations
Displacement amplification type magnetostrictive transducer
CN212441930U