CN219092636U - Vibration exciter - Google Patents
Vibration exciter Download PDFInfo
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- CN219092636U CN219092636U CN202223278357.5U CN202223278357U CN219092636U CN 219092636 U CN219092636 U CN 219092636U CN 202223278357 U CN202223278357 U CN 202223278357U CN 219092636 U CN219092636 U CN 219092636U
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- electromagnetic coil
- permanent magnet
- side wall
- opening
- top cover
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a vibration exciter, comprising: the electromagnetic coil, the permanent magnet moving iron, the metal spring plate and the shell; the shell comprises a top cover and a side wall, and the top cover is provided with an opening; the electromagnetic coil is arranged in the shell, and one end of the electromagnetic coil is fixedly connected with the edge of the top cover opening; the permanent magnet moving iron is positioned below the electromagnetic coil in the gravity direction; the end face of the permanent magnet moving iron, which is close to one end of the electromagnetic coil, is provided with a groove for accommodating part of the electromagnetic coil; the metal spring plate is provided with an opening, the outer side wall of the permanent magnet moving iron is fixedly connected with the edge of the opening of the metal spring plate, and the periphery of the metal spring plate is fixedly connected with the shell. According to the utility model, the electromagnetic coil generates electromagnetic force to enable the permanent magnet moving iron to vibrate, and the shell is used for transmitting and superposing the vibration generated by the permanent magnet moving iron, so that the thickness of the vibration exciter is reduced, and the applicability of the vibration exciter is improved.
Description
Technical Field
The utility model relates to the field of mechanical vibration, in particular to a vibration exciter.
Background
Vibration excitation devices or vibration generating devices are devices that use electric, electro-hydraulic, piezoelectric or other means to obtain mechanical vibrations by inputting excitation signals into a coil placed in a magnetic field to drive a table connected to the coil. The existing vibration excitation equipment is complex in structure, large in size, difficult to apply to small equipment needing to generate vibration, limited in vibration amplitude and low in vibration efficiency.
Disclosure of Invention
An embodiment of the present utility model provides a vibration exciter including: the electromagnetic coil, the permanent magnet moving iron, the metal spring plate and the shell; the shell comprises a top cover and a side wall, wherein the side wall extends from the edge of the top cover along the gravity direction and is cylindrical, and the top cover is provided with an opening; the electromagnetic coil is arranged in the shell, and one end of the electromagnetic coil is fixedly connected with the edge of the top cover opening; the permanent magnet moving iron is positioned below the electromagnetic coil in the gravity direction; the end face of the permanent magnet moving iron, which is close to one end of the electromagnetic coil, is provided with a groove for accommodating part of the electromagnetic coil; the metal spring plate is provided with an opening, the outer side wall of the permanent magnet moving iron is matched with the shape of the opening of the metal spring plate, the outer side wall of the permanent magnet moving iron is fixedly connected with the edge of the opening of the metal spring plate, and the periphery of the metal spring plate is fixedly connected with the shell.
Further, the metal spring plate comprises two or more concentric annular parts and a connecting part, wherein the connecting part is used for connecting two adjacent annular parts; the opening of the metal spring plate is formed by the innermost annular part of the concentric annular parts; the outer periphery of the metal spring piece is formed by the outermost annular part of the concentric annular parts.
Optionally, the outer periphery of the metal elastic sheet is fixedly connected with the housing, and further includes: the shell is provided with two or more bosses, the bosses are close to the inner side of the side wall of the shell, and the periphery of the metal elastic sheet is connected or welded with the bosses through an adhesive; and/or the boss is provided with a threaded hole, and the periphery of the metal elastic sheet is connected with the threaded hole on the boss in a matched manner through a screw.
Optionally, the outer periphery of the metal elastic sheet is fixedly connected with the housing, and further includes: the periphery of the metal elastic sheet is provided with an L-shaped bending connecting part, and the L-shaped bending connecting part is fixedly connected with the side wall of the shell.
Optionally, the outer periphery of the metal elastic sheet is fixedly connected with the housing, and further includes: the end face of one end of the side wall, which is not connected with the top cover, is provided with a threaded hole, and the periphery of the metal elastic sheet is matched and connected with the threaded hole on the end face of the side wall of the shell through a screw.
Optionally, one end of the electromagnetic coil is fixedly connected with an edge of the opening of the top cover, and the electromagnetic coil comprises: the outer side wall of the electromagnetic coil is matched with the shape of the opening of the top cover, and the outer side wall of one end of the electromagnetic coil is connected or welded with the edge of the opening of the top cover through an adhesive.
Optionally, one end of the electromagnetic coil is fixedly connected with an edge of the opening of the top cover, and the electromagnetic coil comprises: and one end of the electromagnetic coil is provided with a substrate, and the substrate is fixedly connected with the edge of the opening of the top cover.
Optionally, the outer side wall of the permanent magnet moving iron is connected with the opening of the metal spring plate through an adhesive or welded.
According to the vibration exciter provided by the embodiment of the utility model, the electromagnetic coil is arranged in the shell, one end of the electromagnetic coil is fixedly connected with the edge of the opening of the top cover, the periphery of the metal elastic sheet is fixedly connected with the shell, the outer side wall of the permanent magnet moving iron is fixedly connected with the edge of the opening of the metal elastic sheet, and the groove is arranged on one end face of the permanent magnet moving iron, so that part of the electromagnetic coil can be accommodated. In addition, the metal elastic sheet can be provided with two or more concentric annular parts and connecting parts, so that the elasticity of the metal elastic sheet is further increased, and the vibration efficiency of the vibration exciter is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the figures in the following description are only some embodiments of the utility model, from which other figures can be obtained without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a vibration exciter according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a vibration exciter according to an embodiment of the present utility model;
FIG. 3 is a partial view of a permanent magnet moving iron of a vibration exciter according to an embodiment of the present utility model;
FIG. 4 is a partial detail view of a metal spring plate of a vibration exciter according to an embodiment of the present utility model;
fig. 5 is a partial detail view of a housing of a vibration exciter according to an embodiment of the present utility model.
The reference numerals are explained as follows:
1. an electromagnetic coil; 2. permanent magnet moving iron; 3. a metal spring plate; 4. a housing; 41. a top cover; 42. a sidewall; 411. opening the top cover; 21. a groove; 31. opening holes of the metal spring plates; 43. a boss; 44. a boss; 32. an annular portion; 321. an innermost annular portion; 322. an outermost annular portion; 33. a connection part; 421. the end face of the side wall of the shell.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is 2 or more.
The utility model is further described below with reference to the accompanying drawings:
the present embodiment provides a vibration exciter including: the electromagnetic coil, the permanent magnet moving iron, the metal spring plate and the shell; the shell comprises a top cover and a side wall, wherein the side wall extends from the edge of the top cover along the gravity direction and is cylindrical, and the top cover is provided with an opening; the electromagnetic coil is arranged in the shell, and one end of the electromagnetic coil is fixedly connected with the edge of the top cover opening; the permanent magnet moving iron is positioned below the electromagnetic coil in the gravity direction; the end face of the permanent magnet moving iron, which is close to one end of the electromagnetic coil, is provided with a groove for accommodating part of the electromagnetic coil; the metal spring plate is provided with an opening, the outer side wall of the permanent magnet moving iron is matched with the shape of the opening of the metal spring plate, the outer side wall of the permanent magnet moving iron is fixedly connected with the edge of the opening of the metal spring plate, and the periphery of the metal spring plate is fixedly connected with the shell.
The structure of the vibration exciter will be described in detail below by taking the vibration exciter as shown in fig. 1 to 5 as an example. As shown in fig. 2, the vibration exciter comprises an electromagnetic coil 1, a permanent magnet moving iron 2, a metal spring sheet 3 and a shell 4; the casing 4 includes a top cover 41 and a side wall 42, the side wall 42 extends from the edge of the top cover 41 along the gravity direction and is cylindrical, and the top cover 41 is provided with an opening 411; the shape of the top cover 41 is matched with the shape of the cross section of the side wall 42. The present utility model is not limited to the shape of the cross section of the sidewall 42, for example, the cross section of the sidewall 42 may be circular, polygonal, or irregular, and the like, and may be designed and selected according to the actual needs of the product.
Further, the electromagnetic coil 1 is disposed in the housing 4, and one end of the electromagnetic coil 1 is fixedly connected to the edge of the top opening 411. As an alternative embodiment, the outer side wall of the electromagnetic coil 1 is matched with the shape of the opening 411 of the top cover, and the outer side wall of one end of the electromagnetic coil 1 is connected or welded with the edge of the opening 411 of the top cover through an adhesive. As a further alternative embodiment, a substrate is provided at one end of the electromagnetic coil 1, and the substrate is fixedly connected to the edge of the opening 411 of the top cover. The present utility model is not limited to the shape of the opening 411 of the top cover, for example, the opening 411 of the top cover may be circular, polygonal, or irregularly patterned, etc., and may be designed and selected according to the actual needs of the product.
Further, in the gravity direction, the permanent magnet moving iron 2 is located below the electromagnetic coil 1; the end face of the permanent magnet moving iron 2, which is close to one end of the electromagnetic coil 1, is provided with a groove 21 for accommodating part of the electromagnetic coil 1; the metal spring plate 3 is provided with an opening 31, the outer side wall of the permanent magnet moving iron 2 is matched with the shape of the opening 31 of the metal spring plate, and the outer side wall of the permanent magnet moving iron 2 is fixedly connected with the opening 31 of the metal spring plate, for example, by adhesive connection, welding and the like. The shape of the opening 31 of the metal spring is not limited, for example, the opening 31 of the metal spring can be round, polygonal or irregular, and the like, and can be designed and selected according to the actual needs of the product.
Further, the outer periphery of the metal spring plate 3 is fixedly connected with the housing 4. In the embodiment of the utility model, the outer side wall of the permanent magnet moving iron 2 is fixedly connected with the edge of the opening of the metal elastic sheet 3, and the outer periphery of the metal elastic sheet 3 is fixedly connected with the shell 4, so that the permanent magnet moving iron 2 is in a suspension arrangement.
As an alternative embodiment, as shown in fig. 2 and 5, the housing 4 is provided with two or more bosses 43, the bosses 43 are located near the inner side of the sidewall 42 of the housing 4, and the outer circumference of the metal dome 3 is connected or welded to the bosses 43 by an adhesive. The shape of the boss 43 is not limited, and may be, for example, a rectangular parallelepiped, a cylinder or other irregular shapes, and may be designed and selected according to actual needs of the product. Optionally, a boss 44 is disposed beside the boss 43, the boss 44 is provided with a threaded hole, and the vibration exciter is fixedly connected with an external device by matching with the threaded hole on the boss 44 through a screw.
Further, the boss 43 is provided with a threaded hole, and the outer periphery of the metal spring plate 3 is connected with the threaded hole on the boss 43 in a matching manner through a screw. The shape of the boss 43 is not limited, and may be, for example, a rectangular parallelepiped, a cylinder or other irregular shapes, and may be designed and selected according to actual needs of the product.
As a further alternative embodiment, the housing 4 is provided with two or more bosses 43, the bosses 43 are located near the inner side of the side wall 42 of the housing 4, the bosses 43 are provided with screw holes, and the outer periphery of the metal spring plate 3 is connected with the screw holes of the bosses 43 by screws. The shape of the boss 43 is not limited, and may be, for example, a rectangular parallelepiped, a cylinder or other irregular shapes, and may be designed and selected according to actual needs of the product. Optionally, a boss 44 is disposed beside the boss 43, the boss 44 is provided with a threaded hole, and the vibration exciter is fixedly connected with an external device by matching with the threaded hole on the boss 44 through a screw.
As a further alternative embodiment, the outer periphery of the metal spring plate 3 is provided with an L-shaped bending connection portion, and the L-shaped bending connection portion is fixedly connected with the side wall 42 of the housing 4, for example, by a nut and screw fitting connection, by an adhesive connection or by welding. The L-shaped bent connection part may be continuous along the outer circumference of the metal spring plate 3 or may be a plurality of separated parts, which is not limited in the present utility model.
As a further alternative embodiment, the end 421 of the side wall 42, which is not connected to the end of the top cover 41, is provided with a threaded hole, and the outer circumference of the metal spring 3 is connected to the threaded hole on the end 421 of the side wall of the housing by a screw. The number of screw holes in the case side wall end surface 421 is not limited, and may be, for example, 2, 3, 4, 6, 8, or the like.
The metal elastic sheet in the embodiment of the utility model is made of a high-elasticity metal material, and the metal elastic sheet can only comprise one opening for connecting the permanent magnet moving iron, and can also comprise two or more concentric annular parts and connecting parts, wherein the connecting parts are positioned between adjacent annular parts and are used for connecting the adjacent two annular parts; the opening of the metal elastic sheet is formed by an innermost annular part of the concentric annular part, the periphery of the metal elastic sheet is formed by an outermost annular part of the concentric annular part, and the outermost annular part of the concentric annular part is connected with a threaded hole on the end face of the side wall of the shell in a matched manner through a screw, or is connected with the threaded hole of the boss of the shell in a matched manner through the screw, or is directly connected with the boss of the shell in a fixed manner through an adhesive, welding and the like. The present utility model is not limited to the shape and number of the connection parts, for example, the connection parts 33 may be S-shaped, zigzag-shaped, straight-line-shaped, irregular-shaped, etc., and the number of the connection parts may be 2, 3, 4, 6, 8, etc., and may be designed and selected according to actual demands of products.
In the embodiment shown in fig. 4, the metal spring comprises 2 concentric annular portions 321 and 322, and 6 zigzag connecting portions 33. Wherein, the opening 31 of the metal spring plate is formed by an innermost annular part 321 of the concentric annular part, the outer circumference of the metal spring plate is formed by an outermost annular part 322 of the concentric annular part, and the outermost annular part 322 of the concentric annular part is connected with the threaded hole of the shell boss 43 in a matching way through a screw; the 6 zigzag connecting portions 33 are located between the annular portions 321 and 322, and connect the annular portions 321 and 322. According to the utility model, the elasticity of the metal elastic sheet is further increased by arranging two or more concentric annular parts and the connecting parts on the metal elastic sheet, so that the elasticity is provided for the permanent magnet moving iron when the permanent magnet moving iron reciprocates, and the vibration efficiency is amplified.
According to the vibration exciter provided by the embodiment of the utility model, the outer side wall of the electromagnetic coil is fixedly connected with the opening edge of the top cover of the shell, the periphery of the metal elastic sheet is fixedly connected with the shell, and the outer side wall of the permanent magnet moving iron is fixedly connected with the opening edge of the metal elastic sheet, so that the permanent magnet moving iron is in a suspension arrangement, and can form reciprocating motion under the action of magnetic field force, self gravity and tensile force of the metal elastic sheet, thereby improving vibration efficiency; and one end face of the permanent magnet moving iron is provided with a groove, so that part of electromagnetic coils can be accommodated, the structure is simple, the thickness of the vibration exciter is reduced, the volume of the vibration exciter is reduced, and the applicability of the vibration exciter is improved. In addition, the metal elastic sheet can be provided with two or more concentric annular parts and connecting parts, so that the elasticity of the metal elastic sheet is further increased, and the vibration efficiency of the vibration exciter is improved.
The principle of operation of the vibration exciter will now be described with reference to the vibration exciter shown in fig. 2 only.
The electromagnetic coil 1 is supplied with a first current I 1 After which a first magnetic field force E is generated 1 The first current I 1 Is sinusoidal alternating current; because the permanent magnet moving iron 2 is arranged in a hanging way, the permanent magnet moving iron 2 generates a first magnetic field force E 1 And the permanent magnet moving iron moves from the initial position to the direction away from the electromagnetic coil 1 under the action of gravity G, and the metal elastic sheet 3 is elastically deformed to the direction away from the electromagnetic coil 1 to generate a first elastic force F 1 The method comprises the steps of carrying out a first treatment on the surface of the When the permanent magnet moving iron 2 moves to a vibration peak position far away from the electromagnetic coil 1, the first elastic force F 1 Under the action of the electromagnetic coil 1, the permanent magnet moving iron 2 moves in the direction approaching to the electromagnetic coil 1; when the permanent magnet moving iron 2 moves to a vibration peak position close to the electromagnetic coil 1, the permanent magnet moving iron 2 moves in a direction away from the electromagnetic coil 1 under the action of the gravity G of the permanent magnet moving iron.
When the permanent magnet moving iron 2 moves to a vibration peak position far away from the electromagnetic coil 1, a first current I 1 The direction is reversed, and a second magnetic field force E is generated 2 At a second magnetic field force E 2 And a first elastic force F 1 Under the action of the electromagnetic coil 1, the permanent magnet moving iron 2 moves towards the direction close to the electromagnetic coil 1, and the permanent magnet moving iron 2 cuts magnetic force lines to generate a first current I 1 Current I in the same direction, so that a first current I 1 And the current I is overlapped, so that the effect of current amplification is realized, and the vibration efficiency is further improved.
When the permanent magnet moving iron 2 moves to a position close to the vibration peak value of the electromagnetic coil 1, a first current I 1 Again in reverse, generating a first magnetic field force E 1 At a first magnetic field force E 1 And the permanent magnet moving iron 2 moves in a direction away from the electromagnetic coil 1 under the action of the gravity G of the permanent magnet moving iron. The permanent magnet moving iron is subjected to a first magnetic field force E in addition to the action of self gravity G 1 The power of the permanent magnet moving iron 2 is increased, and the vibration efficiency is improved.
When the permanent magnet moving iron 2 moves to a position close to the vibration peak value of the electromagnetic coil 1, the vibration peak value position of the electromagnetic coil 1 is relative to the metal spring plate 3The initial position is closer to the electromagnetic coil 1, and the metal spring sheet 3 elastically deforms towards the direction approaching the electromagnetic coil 1 to generate a second elastic force F 2 The method comprises the steps of carrying out a first treatment on the surface of the At a second elastic force F 2 First magnetic field force E 1 And the permanent magnet moving iron 2 moves in a direction away from the electromagnetic coil 1 under the action of the gravity G of the permanent magnet moving iron. The permanent magnet moving iron is subjected to self gravity G and first magnetic field force E 1 Is also subjected to a second elastic force F generated by the metal elastic sheet 3 2 The power of the permanent magnet moving iron 2 is further increased, and the vibration efficiency is improved.
When the permanent magnet moving iron 2 reciprocates, the metal spring plate 3 transmits the vibration generated by the permanent magnet moving iron 2 to the shell 4, the shell 4 and the permanent magnet moving iron 2 generate vibration at the same time, the vibration of the shell 4 and the vibration generated by the permanent magnet moving iron 2 can be mutually overlapped, and the vibration efficiency is further amplified.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (8)
1. A vibration exciter, comprising: the electromagnetic coil, the permanent magnet moving iron, the metal spring plate and the shell;
the shell comprises a top cover and a side wall, wherein the side wall extends from the edge of the top cover along the gravity direction and is cylindrical, and the top cover is provided with an opening;
the electromagnetic coil is arranged in the shell, and one end of the electromagnetic coil is fixedly connected with the edge of the top cover opening; in the gravity direction, the permanent magnet moving iron is positioned below the electromagnetic coil; the end face of the permanent magnet moving iron, which is close to one end of the electromagnetic coil, is provided with a groove for accommodating part of the electromagnetic coil; the metal elastic sheet is provided with an opening, the outer side wall of the permanent magnet moving iron is matched with the shape of the opening of the metal elastic sheet, the outer side wall of the permanent magnet moving iron is fixedly connected with the edge of the opening of the metal elastic sheet, and the periphery of the metal elastic sheet is fixedly connected with the shell.
2. The vibration exciter of claim 1, wherein the metal spring sheet comprises two or more concentric annular portions and a connecting portion for connecting adjacent two of the annular portions; the opening of the metal elastic sheet is formed by the innermost annular part of the concentric annular parts; the outer periphery of the metal spring plate is formed by the outermost annular part of the concentric annular parts.
3. The vibration exciter according to claim 1 or 2, characterized in that the outer periphery of the metal elastic sheet is fixedly connected with the housing, further comprising: the shell is provided with two or more bosses, the bosses are close to the inner side of the side wall of the shell, and the periphery of the metal elastic sheet is connected or welded with the bosses through an adhesive; and/or the boss is provided with a threaded hole, and the periphery of the metal elastic sheet is connected with the threaded hole on the boss in a matched manner through a screw.
4. The vibration exciter according to claim 1 or 2, characterized in that the outer periphery of the metal elastic sheet is fixedly connected with the housing, further comprising: the periphery of the metal elastic sheet is provided with an L-shaped bending connecting part, and the L-shaped bending connecting part is fixedly connected with the side wall of the shell.
5. The vibration exciter according to claim 1 or 2, characterized in that the outer periphery of the metal elastic sheet is fixedly connected with the housing, further comprising: the end face of the end, which is not connected with the top cover, of the side wall is provided with a threaded hole, and the periphery of the metal elastic sheet is connected with the threaded hole on the end face of the side wall of the shell in a matched mode through a screw.
6. A vibration exciter according to claim 1 or claim 2, wherein one end of the electromagnetic coil is fixedly connected to the rim of the top cover aperture, comprising: the outer side wall of the electromagnetic coil is matched with the shape of the opening of the top cover, and the outer side wall of one end of the electromagnetic coil is connected or welded with the edge of the opening of the top cover through an adhesive.
7. A vibration exciter according to claim 1 or claim 2, wherein one end of the electromagnetic coil is fixedly connected to the rim of the top cover aperture, comprising: one end of the electromagnetic coil is provided with a substrate which is fixedly connected with the edge of the opening of the top cover.
8. A vibration exciter according to claim 1 or claim 2, wherein the outer side wall of the permanent magnet is connected or welded to the aperture of the metal dome by an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223278357.5U CN219092636U (en) | 2022-12-07 | 2022-12-07 | Vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223278357.5U CN219092636U (en) | 2022-12-07 | 2022-12-07 | Vibration exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219092636U true CN219092636U (en) | 2023-05-30 |
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ID=86427274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223278357.5U Active CN219092636U (en) | 2022-12-07 | 2022-12-07 | Vibration exciter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219092636U (en) |
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2022
- 2022-12-07 CN CN202223278357.5U patent/CN219092636U/en active Active
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