CN219478137U - Flow guiding vibrator - Google Patents

Abstract

The utility model belongs to the technical field of diversion type vibrators, and particularly relates to a diversion type vibrator which comprises a shell, an elastic piece, a coil and a magnetic circuit mechanism; the shell is provided with a cavity, a cavity opening is formed in the rear end of the shell in the cavity, and the elastic sheet is arranged at the rear end of the shell and positioned at the cavity opening; the magnetic circuit mechanism is arranged in the accommodating cavity and connected with the elastic sheet, and the magnetic circuit mechanism is provided with a magnetic gap; one end of the coil is arranged on the cavity wall of the containing cavity, and the other end of the coil is arranged in the magnetic gap; the front side wall or the front end wall of the shell is provided with at least one air hole communicated with the accommodating cavity; when the magnetic circuit mechanism extrudes air in the accommodating cavity in the process of following the vibration of the elastic sheet, the air in the accommodating cavity flows out rapidly along the direction of the air hole, so that the flow guiding effect is achieved, the fluency of air flow is enhanced, the resistance to the magnetic circuit mechanism and the elastic sheet is reduced, the magnetic circuit mechanism and the elastic sheet vibrate smoothly, and the tone quality of the vibrator is improved.

Description

Flow guiding vibrator

Technical Field

The utility model belongs to the technical field of flow-guiding vibrators, and particularly relates to a flow-guiding vibrator.

Background

In general, the human audible sound can be divided into two types: air conduction and bone conduction. Air conduction is the transmission of vibrations through the external auditory meatus to the eardrum, where the vibrations formed by the eardrum drive the person's auditory nerve, thereby sensing the vibrations of the sound. Bone conduction is the conversion of sound into mechanical vibration of different frequencies, not through the external auditory canal and eardrum, but through the vibration of skin tissue and bone directly to the inner ear, driving human auditory nerve, specifically, transmitting sound wave through human skull, bone labyrinth, inner ear lymph, screw, auditory nerve and auditory center.

Referring to fig. 9, a conventional bone conduction speaker (bone conduction vibrator) includes a housing 1, a spring piece 2, a magnetic circuit mechanism 3, and a coil 4. The shell 1 is provided with an inner cavity 11 with a cavity opening, the elastic sheet 2 is arranged at the cavity opening, the elastic sheet 2 is provided with a plurality of air holes 21 in a penetrating mode, the magnetic circuit mechanism 3 and the coil 4 are arranged in the inner cavity 11, and the magnetic circuit mechanism 3 and the coil 4 are respectively connected to the elastic sheet 2 and the cavity wall of the inner cavity 11. When the magnetic circuit mechanism works, the coil 4 generates a magnetic field after being electrified, the coil 4 interacts with the magnetic circuit mechanism 3 to drive the elastic sheet 2 to vibrate reciprocally, the magnetic circuit mechanism 3 can squeeze air in the inner cavity 11 in the process of vibrating along with the elastic sheet 2, the air in the inner cavity 11 flows out from the air hole 21, and the resistance to the magnetic circuit mechanism 3 and the elastic sheet 2 is reduced. However, the above-described structure has a disadvantage in that the air in the inner chamber 11 is pushed to flow out from the air hole 21 to be reversed (changed) in flow direction (as shown by arrow in fig. 9), which is disadvantageous in that the air flow is not smooth, and the sound quality of the bone conduction speaker is affected.

Disclosure of Invention

The utility model aims to provide a flow-guiding vibrator, which aims to solve the technical problems that air in an inner cavity of the flow-guiding vibrator in the prior art is extruded to flow out of an air hole to reverse flow direction, so that the outflow of the air is not facilitated, the air flow smoothness is not high, and the sound quality of the flow-guiding vibrator is affected.

In order to achieve the above purpose, the embodiment of the present utility model provides a flow guiding vibrator, which includes a housing, a spring, a coil and a magnetic circuit mechanism; the shell is provided with a cavity, a cavity opening is formed in the rear end of the shell in the cavity, and the elastic sheet is arranged at the rear end of the shell and positioned at the cavity opening; the magnetic circuit mechanism is arranged in the accommodating cavity and connected with the elastic sheet, and the magnetic circuit mechanism is provided with a magnetic gap; one end of the coil is arranged on the cavity wall of the containing cavity, and the other end of the coil is arranged in the magnetic gap; the front side wall or the front end wall of the shell is provided with at least one air hole communicated with the containing cavity.

Optionally, the two opposite side walls at the front end of the shell are both provided with the air holes.

Optionally, the end wall of the front end of the shell is annularly provided with a plurality of air holes.

Optionally, the opposite two sides of the rear end of the shell are respectively provided with a supporting part, the opposite two sides of the elastic sheet are respectively arranged on the two supporting parts, the opposite other two sides of the rear end of the shell are respectively provided with an empty avoiding groove, and the opposite other two sides of the elastic sheet are respectively suspended in the two empty avoiding grooves.

Optionally, two support portions are symmetrically provided with two connecting columns, two opposite sides of the elastic sheet are symmetrically provided with two connecting holes, and each connecting hole is sleeved in one connecting column.

Optionally, the elastic sheet is provided with a plurality of through grooves.

Optionally, the magnetic circuit mechanism comprises a "U" iron; the U-shaped iron is arranged in the elastic piece, at least one magnetic piece is arranged in a U-shaped groove of the U-shaped iron, and the magnetic gap is formed between the magnetic piece and the U-shaped iron; one end of the magnetic part facing to the outside of the U-shaped groove is provided with a magnetic conduction part.

Optionally, the end part of the 'U' -shaped iron is convexly provided with a mounting part, the middle part of the elastic sheet is penetrated and provided with a mounting hole, and the mounting part is penetrated and provided with the mounting hole.

Optionally, the magnetic circuit mechanism comprises a "T" iron; the T iron is arranged on the elastic sheet, at least one annular magnetic piece is sleeved outside the T iron, and the magnetic gap is formed between the T iron and the annular magnetic piece; one end of the annular magnetic piece, which is far away from the elastic piece, is provided with a magnetic conduction piece.

Optionally, the shell, the elastic sheet, the coil and the magnetic circuit mechanism are all in a racetrack shape.

Compared with the prior art, the one or more technical schemes in the diversion vibrator provided by the embodiment of the utility model have at least one of the following technical effects:

the coil generates a magnetic field after being electrified, the coil and the magnetic circuit mechanism interact to drive the elastic sheet to vibrate reciprocally, when the magnetic circuit mechanism extrudes air in the containing cavity in the process of vibrating along with the elastic sheet, the air in the containing cavity flows out rapidly along the direction of the air hole, so that the flow guiding effect is achieved, the fluency of air flow is enhanced, the resistance to the magnetic circuit mechanism and the elastic sheet is reduced, the magnetic circuit mechanism and the elastic sheet vibrate smoothly, and the sound quality of the vibrator is improved.

The elastic piece is only connected to the supporting part at two sides, and the other two sides of the elastic piece are suspended, namely, the other two sides of the elastic piece are not supported, so that the elastic piece is easier to elastically deform when in reciprocating vibration, the elastic piece vibrates more smoothly, and the sensitivity and the sound quality of the vibrator are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a flow guiding vibrator according to a first embodiment of the present utility model.

Fig. 2 is another view of a guide vibrator according to a first embodiment of the present utility model.

Fig. 3 is a cross-sectional view of a guide vibrator according to a first embodiment of the present utility model.

Fig. 4 is a cross-sectional view of a flow guiding vibrator according to a second embodiment of the present utility model.

Fig. 5 is an exploded view of a guide vibrator according to a first embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of a guide vibrator according to a third embodiment of the present utility model.

Fig. 7 is another view of a guide vibrator according to a third embodiment of the present utility model.

Fig. 8 is a cross-sectional view of a guide vibrator according to a third embodiment of the present utility model.

Fig. 9 is a schematic diagram of a conventional bone conduction speaker.

Wherein, each reference sign in the figure:

100. a housing; 110. a cavity; 111. a cavity opening; 120. air holes; 130. a support part; 131. a connecting column; 140. an empty-avoiding groove; 150. a wire penetrating groove;

200. a spring plate; 210. a connection hole; 220. a through groove; 230. a mounting hole;

300. a coil;

400. a magnetic circuit mechanism; 401. a magnetic gap; 410. "U" iron; 411. a mounting part; 420. a magnetic member; 430. a magnetic conductive member; 440. "T" iron; 450. an annular magnetic member.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify 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" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, referring to fig. 1 to 8, a guide vibrator is provided, which includes a housing 100, a spring 200, a coil 300, and a magnetic circuit mechanism 400.

Referring to fig. 3 and 5, the housing 100 has a cavity 110, the cavity 110 forms a cavity opening 111 at a rear end of the housing 100, and the spring 200 is disposed at the rear end of the housing 100 and is located at the cavity opening 111. Specifically, the material of the spring 200 may be metal, plastic, or the like, which is not limited herein. The elastic sheet 200 may be an elastic sheet having any shape, and the specific shape of the elastic sheet 200 is not limited.

Referring to fig. 1-3, the magnetic circuit mechanism 400 is disposed in the cavity 110 and connected to the spring plate 200, and the magnetic circuit mechanism 400 has a magnetic gap 401. The magnetic circuit mechanism 400 is configured to provide a magnetic field to the magnetic gap 401.

Referring to fig. 1-3, one end of the coil 300 is disposed on a wall of the cavity 110, and specifically, one end of the coil 300 may be fastened to the wall of the cavity 110 by fastening, welding, or bonding. The other end of the coil 300 is disposed in the magnetic gap 401. The voice coil is used for cutting magnetic force lines to generate electromotive force, and the shape, structure and material of the voice coil are not limited as long as the function can be completed.

Referring to fig. 1-3, at least one air hole 120 communicating with the cavity 110 is provided on the front side wall or front end wall of the housing 100.

Compared with the prior art, the one or more technical schemes in the diversion type vibrator structure provided by the embodiment of the utility model have at least one of the following technical effects: when the vibrator works, the coil 300 generates a magnetic field after being electrified, the coil 300 and the magnetic circuit mechanism 400 interact to drive the elastic sheet 200 to vibrate reciprocally, and when the magnetic circuit mechanism 400 extrudes air in the cavity 110 in the process of vibrating with the elastic sheet 200, the air in the cavity 110 flows out rapidly along the direction of the air hole 120, so that the flow guiding effect is achieved, the fluency of air flow is enhanced, the resistance to the magnetic circuit mechanism 400 and the elastic sheet 200 is reduced, the magnetic circuit mechanism 400 and the elastic sheet 200 vibrate smoothly, and the sound quality of the vibrator is improved.

The air hole 120 may be circular, oval, rectangular or other shapes, which are not limited herein. The size or number of the air holes 120 may be determined according to actual production requirements.

In another embodiment of the present utility model, referring to fig. 1-3, the air holes 120 are formed on two opposite side walls of the front end of the housing 100, and air in the cavity 110 can flow out of the air holes 120 on two sides of the housing 100, which is beneficial to air flow.

In another embodiment of the present utility model, referring to fig. 6 to 8, the front end wall of the housing 100 is provided with a plurality of air holes 120 in a ring shape, and the air in the cavity 110 can flow out of the plurality of air holes 120 on the end wall of the housing 100, which is beneficial to air flow.

In another embodiment of the present utility model, referring to fig. 1, 3 and 5, two opposite sides of the rear end of the housing 100 are respectively provided with a supporting portion 130, two opposite sides of the elastic sheet 200 are respectively mounted on two supporting portions 130, two opposite sides of the rear end of the housing 100 are respectively provided with an empty-avoiding groove 140, and two opposite sides of the elastic sheet 200 are respectively suspended in the two empty-avoiding grooves 140. The two sides of the elastic sheet 200 are only connected to the supporting portion 130, and the other two sides of the elastic sheet 200 are suspended, i.e. the other two sides of the elastic sheet 200 are not supported, the elastic sheet 200 is easier to elastically deform during reciprocating vibration, so that the vibration of the elastic sheet 200 is smoother, and the sensitivity and the sound quality of the vibrator are improved.

Further, referring to fig. 1, 3 and 5, two connecting posts 131 are symmetrically disposed on the two supporting portions 130, two connecting holes 210 are symmetrically disposed on opposite sides of the elastic sheet 200, and each connecting hole 210 is sleeved in one connecting post 131. The connection hole 210 may be fixedly fastened in the connection post 131 in an interference fit manner, so that the spring plate 200 is fixedly connected with the housing 100. Or the connection hole 210 and the connection post 131 cooperate with each other to perform a positioning function, and the elastic sheet 200 is fixedly connected with the housing 100 by means of clamping, bonding, screwing or the like, so that the elastic sheet 200 is fixedly connected with the housing 100, which is not limited herein.

In another embodiment of the present utility model, referring to fig. 1, 3 and 5, the spring 200 has a plurality of through slots 220, the through slots 220 can allow air to flow therethrough, when the magnetic circuit mechanism 400 vibrates along with the spring 200, the magnetic circuit mechanism 400 and the spring 200 can squeeze air in the cavity 110, and air in the cavity 110 can flow out from the through slots 220, the air-avoiding slot 140 and the air holes 120, so that the fluency of air flow is further enhanced, and the fluency of air flow is better.

In another embodiment of the present utility model, referring to fig. 1-3, the front end wall of the housing 100 is further provided with a threading slot 150 communicating with the cavity 110, and the threading slot 150 is used for threading, so that a cable is electrically connected with the voice coil through the threading slot 150, thereby facilitating wiring.

In another embodiment of the present utility model, referring to fig. 1, 3 and 5, the magnetic circuit mechanism 400 includes a "U" iron 410; the "U" iron 410 is disposed in the spring 200, at least one magnetic member 420 is disposed in a "U" groove of the "U" iron 410, the magnetic member 420 generates a magnetic field in the "U" groove of the "U" iron 410, the magnetic gap 401 is formed between the magnetic member 420 and the "U" iron 410, and the "U" iron 410410 concentrates the magnetic field generated by the magnetic member 420 in the magnetic gap 401, so as to enhance the magnetic field in the magnetic gap 401.

Referring to fig. 1, 3 and 5, a magnetic conducting member 430 is disposed at an end of the magnetic member 420 facing the outside of the U-shaped slot. Specifically, the magnetic conductive member 430 is used for magnetic conduction, so that the inner magnetic member 420 provides a uniform magnetic field to the magnetic gap 401 through the magnetic conductive member 430, and the voice coil vibrates reciprocally in the uniform magnetic field, so that the vibrator has higher sensitivity and lower distortion. The magnetic conductive member 430 may be a washer.

The magnetic member 420 is mainly used for providing a magnetic field, and the magnetic member 420 may be any magnet or magnet set, as long as the magnetic field can be provided, and is not limited herein. The magnetic member 420 may be fixed to the bottom center of the U-shaped groove of the U-shaped iron 410 by welding, clamping, bonding, etc.

Further, referring to fig. 1, 3 and 5, the end portion of the "U" iron 410 is convexly provided with a mounting portion 411, the middle portion of the spring 200 is provided with a mounting hole 230 in a penetrating manner, and the mounting portion 411 is provided with the mounting hole 230 in a penetrating manner. The voice coil is connected to the bottom cavity wall of the mounting groove of the housing 100. The mounting portion 411 may be fixedly clamped in the mounting hole 230 by an interference fit manner, so that the "U" iron 410 is fixedly connected with the elastic sheet 200, or the mounting portion 411 and the mounting hole 230 cooperate with each other to perform a positioning function, and the end portion of the "U" iron 410 is fixedly connected with the elastic sheet 200 by a clamping, bonding or screwing manner, so that the "U" iron 410 is fixedly connected with the elastic sheet 200, which is not limited herein.

In other embodiments, two magnetic members 420 are provided, and one ends of the two magnetic members 420 facing the outside of the U-shaped groove are provided with magnetic conducting members 430, so that the magnetic field of the magnetic gap 401 is enhanced by the two magnetic members 420, so as to improve the sensitivity of the vibrator.

In another embodiment of the present utility model, referring to fig. 4, the magnetic circuit mechanism 400 includes a "T" iron 440; the "T" iron 440 is disposed on the spring 200, at least one annular magnetic member 450 is sleeved on the "T" iron 440, the annular magnetic member 450 generates a magnetic field outside the "T" iron 440, the magnetic gap 401 is formed between the "T" iron 440 and the annular magnetic member 450, and the "T" iron 440 concentrates the magnetic field generated by the annular magnetic member 450 in the magnetic gap 401, so as to enhance the magnetic field in the magnetic gap 401.

Referring to fig. 4, a magnetic conductive member 430 is disposed at an end of the annular magnetic member 450 away from the elastic sheet 200. Specifically, the magnetic conductive member 430 is configured to conduct magnetic current, so that the annular magnetic member 450 provides a uniform magnetic field to the magnetic gap 401 through the magnetic conductive member 430.

Referring to fig. 4, the end of the "T" iron 440 is fixedly connected to the spring 200 by means of a fastening, bonding, or screwing, so that the "T" iron 440 is fixedly connected to the spring 200, which is not limited herein.

The ring-shaped magnetic member 450 may be a magnet or a magnet set, so long as a magnetic field can be provided, and is not limited herein. The ring-shaped magnetic member 450 may be fixed to the step position of the T iron 440 by welding, clamping, bonding, etc.

In another embodiment of the present utility model, referring to fig. 1-3, the housing 100, the spring 200, the coil 300 and the magnetic circuit mechanism 400 are all in a racetrack shape, and the racetrack-shaped spring 200 is in a long sheet shape, so that the spring 200 has better vibration effect and is beneficial to improving the sound quality of the vibrator. Of course, in other embodiments, the housing 100, the spring 200, the coil 300, and the magnetic circuit mechanism 400 may have a circular shape or other shapes, which are not limited herein.

The rest of the present embodiment is the same as the first embodiment, and the unexplained features in the present embodiment are all explained by the first embodiment, and are not described here again.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. For those skilled in the art, the architecture of the utility model can be flexible and changeable without departing from the concept of the utility model, and serial products can be derived. But a few simple derivatives or substitutions should be construed as falling within the scope of the utility model as defined by the appended claims.

Claims (10)

1. The flow-guiding vibrator is characterized by comprising a shell (100), an elastic sheet (200), a coil (300) and a magnetic circuit mechanism (400); the shell (100) is provided with a containing cavity (110), the containing cavity (110) forms a cavity opening (111) at the rear end of the shell (100), and the elastic sheet (200) is arranged at the rear end of the shell (100) and is positioned at the cavity opening (111); the magnetic circuit mechanism (400) is arranged in the accommodating cavity (110) and is connected with the elastic sheet (200), and the magnetic circuit mechanism (400) is provided with a magnetic gap (401); one end of the coil (300) is arranged on the cavity wall of the accommodating cavity (110), and the other end of the coil (300) is arranged in the magnetic gap (401); the front side wall or the front end wall of the shell (100) is provided with at least one air hole (120) communicated with the accommodating cavity (110).

2. The inducer vibrator of claim 1 wherein: the two opposite side walls of the front end of the shell (100) are respectively provided with the air holes (120).

3. The inducer vibrator of claim 1 wherein: the end wall of the front end of the shell (100) is annularly provided with a plurality of air holes (120).

4. The inducer vibrator of claim 1 wherein: the shell comprises a shell body (100), wherein supporting parts (130) are arranged on two opposite sides of the rear end of the shell body (100), two opposite sides of an elastic sheet (200) are respectively arranged on two supporting parts (130), an empty avoidance groove (140) is formed in the other opposite sides of the rear end of the shell body (100), and the other opposite sides of the elastic sheet (200) are respectively suspended in the two empty avoidance grooves (140).

5. The transducer of claim 4, wherein: two connecting columns (131) are symmetrically arranged on the two supporting portions (130), two connecting holes (210) are symmetrically arranged on two opposite sides of the elastic sheet (200), and each connecting hole (210) is sleeved in one connecting column (131).

6. The inducer vibrator of claim 1 wherein: the spring plate (200) is provided with a plurality of through grooves (220).

7. The transducer according to any one of claims 1-6, wherein: the magnetic circuit mechanism (400) includes a "U" iron (410); the U-shaped iron (410) is arranged in the elastic sheet (200), at least one magnetic piece (420) is arranged in a U-shaped groove of the U-shaped iron (410), and a magnetic gap (401) is formed between the magnetic piece (420) and the U-shaped iron (410); one end of the magnetic piece (420) facing the outside of the U-shaped groove is provided with a magnetic conduction piece (430).

8. The transducer of claim 7, wherein: the end part of the U-shaped iron (410) is convexly provided with a mounting part (411), the middle part of the elastic sheet (200) is penetrated and provided with a mounting hole (230), and the mounting part (411) is penetrated and provided with the mounting hole (230).

9. The transducer according to any one of claims 1-6, wherein: the magnetic circuit mechanism (400) includes a "T" iron (440); the T-shaped iron (440) is arranged on the elastic sheet (200), at least one annular magnetic piece (450) is sleeved outside the T-shaped iron (440), and a magnetic gap (401) is formed between the T-shaped iron (440) and the annular magnetic piece (450); one end of the annular magnetic piece (450) far away from the elastic piece (200) is provided with a magnetic conduction piece (430).

10. The transducer according to any one of claims 1-6, wherein: the shell (100), the elastic sheet (200), the coil (300) and the magnetic circuit mechanism (400) are all in a runway shape.