CN216057486U

CN216057486U - Sound production unit with low-frequency enhancement structure

Info

Publication number: CN216057486U
Application number: CN202122410479.4U
Authority: CN
Inventors: 麦阳军
Original assignee: Huizhou Deyue Electronic Products Co ltd
Current assignee: Huizhou Deyue Electronic Products Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-15
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a sounding unit with a low-frequency enhancement structure, which comprises a bass permanent magnet and a bass vibrating diaphragm, and is arranged in a basin frame, wherein the basin frame is arranged in a sounding cavity and comprises a face frame, the face frame is detachably connected with the top of the sounding cavity, and the basin frame is detachably embedded in a hollow part in the middle of the face frame; a plurality of wind-guiding pipelines set up in the sounding cavity, and the periphery of face frame is provided with a plurality of notches, and wind-guiding pipeline's one end and notch intercommunication, the other end and the inside intercommunication of sounding cavity, the interior sinuous setting of wind-guiding pipeline, the crooked setting of pipeline multilayer. According to the sounding unit with the low-frequency enhancement structure, the air guide pipeline is arranged in a multi-layer bending mode, so that sundries are prevented from falling into the air guide structure to influence the sound wave transmission effect of the air guide structure, and the pipeline can be effectively prevented from being completely blocked; air duct and notch intercommunication, the wind duct is passed through to the partial sound wave of bass vibrating diaphragm, emits from the notch after the multiple reflection of sinuous pipeline, makes the low frequency more tall and erect, and the bass effect is better.

Description

Sound production unit with low-frequency enhancement structure

Technical Field

The utility model relates to the technical field of loudspeakers, in particular to a sound production unit with a low-frequency enhancement structure.

Background

With the development of science and technology and the wide application of electronic products, as the demands of consumers on music listening are increased, the industry is continuously perfecting the speaker technology, and various types of sound boxes have been introduced. A sound box is widely used in various occasions as a sound amplifying apparatus, and is an apparatus for reproducing information recorded in an audio file by a sound generating unit built therein, one audio file includes a low frequency, a medium frequency and a high frequency, and the units in the sound box are operated in a division manner to reproduce the low frequency, the medium frequency and the high frequency, respectively.

The sounding units are also called as loudspeakers and are common in daily life, one or more sounding units are arranged inside a sound box, a mobile phone and a television, and the multiple sounding units can bring more stereo surrounding sound.

Traditional speaker cavity is inside to be provided with wind-guiding structure for reinforcing tone quality, but its wind-guiding structure adopts simple straight tube structure usually, and it is not obvious to the tone quality promotion of speaker to the straight tube intercommunication is external, gathers debris in wind-guiding structure easily, influences the effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the problem that the air guide structure is arranged in the loudspeaker cavity body to enhance the tone quality in the prior art, but the air guide structure usually adopts a simple straight pipe structure, the tone quality of the loudspeaker is not obviously improved, and the straight pipe is communicated with the outside, so that sundries are easily accumulated in the air guide structure, and the effect is influenced. "to the technical problem. Therefore, the sound production unit with the low-frequency enhancement structure provided by the utility model can prevent sundries from falling into the air guide structure, and the low-frequency enhancement effect of the air guide structure is better, so that the low-frequency effect of the sound production unit is enhanced.

The sounding unit with the low-frequency enhancement structure comprises a bass permanent magnet and a bass vibrating diaphragm, wherein the bass permanent magnet and the bass vibrating diaphragm are arranged in a basin frame, the basin frame is arranged in a sounding cavity and comprises a face frame, the face frame is detachably connected with the top of the sounding cavity, and the basin frame is detachably embedded in a hollow part in the middle of the face frame; the plurality of air guide pipelines are arranged in the sounding cavity, a plurality of notches are formed in the periphery of the face frame, one end of each air guide pipeline is communicated with the notches, the other end of each air guide pipeline is communicated with the inside of the sounding cavity, the air guide pipelines are arranged in a winding mode, and the pipelines are arranged in a multi-layer bending mode; the periphery of the basin frame is hollowed out, and the interior of the basin frame is communicated with the sounding cavity.

According to some embodiments of the utility model, the air duct comprises a top connector, a middle channel member and a bottom cover member, the top connector is detachably connected with the top of the middle channel member, one end of the top connector is communicated with the notch, and the bottom cover member closes the bottom of the middle channel member.

According to some embodiments of the utility model, a side of the middle channel member adjacent to the tub support is provided with an air duct opening, which communicates with the top connecting member.

According to some embodiments of the utility model, a plurality of layers of interlayers are arranged in the middle channel part at equal intervals, and the interlayers comprise long interlayers and short interlayers which are arranged at intervals; the long interlayer is in close contact with the bottom cover part, and a gap is reserved between the short interlayer and the bottom cover part to communicate with adjacent pipelines; the bottom cover part is detachably buckled with the bottom of the middle channel part, so that the long interlayer is communicated with the short interlayer to form a winding continuous channel.

According to some embodiments of the utility model, the plurality of air guide pipelines are arranged around the basin frame with the basin frame as a circle center and close to the side wall of the sounding cavity.

According to some embodiments of the utility model, a centering sheet is arranged between the bass permanent magnet and the basin stand, the center of the centering sheet is fixedly sleeved with the bass permanent magnet, and the periphery of the centering sheet is fixedly connected with the basin stand.

According to some embodiments of the present invention, a treble unit is further disposed in front of the bass permanent magnet, the treble unit extends upward perpendicular to an end surface of the bass permanent magnet, and the treble unit and the bass permanent magnet are connected through a center post.

According to some embodiments of the utility model, a transformer is arranged in the sounding cavity, the transformer is electrically connected with the bass permanent magnet and the treble unit, a band switch is arranged on the face frame, the band switch is electrically connected with the transformer, and the band switch is used for adjusting the power of the bass permanent magnet and the treble unit; the lateral wall of sound production cavity is provided with terminal connector and line and detains, terminal connector respectively with band switch bass permanent magnet with the high pitch unit electricity is connected, terminal connector's wire rod passes the line is detained and is connected with the external world, the line is detained the position that is used for fixed wire rod.

According to some embodiments of the utility model, the periphery of one side of the face frame facing the sounding cavity is provided with a plurality of climbers, the climbers are connected to the face frame at equal intervals, and the climbers are used for fixing the face frame to a mounting surface; the mounting surface may be a ceiling, a decorative panel, a speaker frame, and a wall.

According to some embodiments of the utility model, a surface of the face frame is covered with a protective cover, and the protective cover is detachably connected with the face frame.

The sound production unit with the low-frequency enhancement structure according to some embodiments of the utility model has at least the following beneficial effects: the air guide pipeline is arranged in a multi-layer bending mode, so that external impurities are prevented from falling into the air guide structure to influence the sound wave transmission effect of the air guide structure, and the pipeline can be effectively prevented from being completely blocked; the air guide pipeline is communicated with the notch, partial sound waves of the bass vibration diaphragm pass through the air guide pipeline and are emitted from the notch after multiple reflections of the winding pipeline, so that the low frequency is thicker, and the bass effect is better.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a sound generating unit with a low frequency enhancing structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of an air duct of a sound unit with a low frequency enhancement structure according to an embodiment of the present invention;

FIG. 3 is an exploded view of the wind guiding duct of the sound generating unit with the low frequency enhancement structure according to the embodiment of the present invention;

FIG. 4 is a partial schematic view of a sound unit with a low frequency enhancement structure according to an embodiment of the present invention;

fig. 5 is a first schematic diagram of a sound generating unit with a low frequency enhancing structure according to an embodiment of the present invention;

fig. 6 is a second schematic diagram of a sound generating unit with a low frequency enhancing structure according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a climber of a sound unit with a low-frequency enhancement structure according to an embodiment of the present invention.

Reference numerals:

the bass permanent magnet 100, the bass diaphragm 110, the frame 120, the centering sheet 121, the treble unit 130, the center post 140, the sound producing cavity 200, the face frame 210, the notch 211, the transformer 220, the band switch 230, the terminal connector 240, the wire buckle 250, the protective cover 260, the air duct 300, the top connector 310, the middle channel member 320, the air duct opening 321, the long partition layer 322, the short partition layer 323, the bottom cover member 330, the foot buckle 400, the fixing post 410, the accommodating groove 411 and the movable buckle 420.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, top, bottom, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

A sound emitting unit having a low frequency enhancement structure according to an embodiment of the present invention is described below with reference to fig. 1 to 7.

As shown in fig. 1 to 7, the sound generating unit with the low frequency enhancement structure includes a bass permanent magnet 100 and a bass diaphragm 110, the bass permanent magnet 100 and the bass diaphragm 110 are installed in a tub 120, specifically, the tub 120 is in a cone shape, the middle of the tub 120 is provided with an opening, the diameter of the opening is equal to the outer diameter of the bass permanent magnet 100, and the bass permanent magnet 100 can be fixed in the center of the tub 120. The middle of the bass diaphragm 110 is opened, and is sleeved and fixed around the periphery of the bass permanent magnet 100, the other side of the bass diaphragm 110 is pressed with the edge of the frame 120, the bass diaphragm 110 is in a cone shape, and the frame 120, the bass permanent magnet 100 and the bass diaphragm 110 form the main body part of the bass unit.

The frame 120 is installed in a sounding cavity 200, a face frame 210 is detachably connected to the top of the sounding cavity 200, the face frame 210 is connected with the sounding cavity 200 through screws, and the two are combined to form a shell part of the sounding unit with the low-frequency enhancement structure. The middle part of the face frame 210 is hollowed, the hollow aperture is equal to the outer diameter of the basin frame 120, the basin frame 120 can be placed in the face frame 210, the edge of the basin frame 120 is fixedly connected with the face frame 210 through screws, and the bass permanent magnet 100 and the bass diaphragm 110 extend into the sounding cavity 200.

A plurality of air guide ducts 300 are arranged in the sounding cavity 200, a plurality of notches 211 are arranged on the periphery of the face frame 210, one end of each air guide duct 300 is communicated with the notches 211, and the other end of each air guide duct is communicated with the inside of the sounding cavity 200. The air guide pipeline 300 is arranged in a winding mode, the pipeline is arranged in a multi-layer bending mode, the stroke of low-frequency sound waves in the air guide pipeline 300 can be effectively increased, the low-frequency effect is enhanced, and compared with an air guide structure arranged in a straight pipe, the air guide pipeline 300 has a longer air guide stroke, the low-frequency sound waves can be fully reflected in the pipeline and spread to the outside from the notch 211, and the overall low-frequency effect of the sound production unit is more excellent. In order to transmit the sound wave of the bass diaphragm 110 to the air guide duct 300, the periphery of the sidewall of the basin stand 120 is hollowed out, so that the interior of the basin stand 120 is communicated with the sound-generating cavity 200 and further communicated with the air guide duct 300.

In this embodiment, there are three sets of air guide ducts 300, the three sets of air guide ducts 300 surround the periphery of the inner wall of the sounding cavity 200 to form an annular air guide structure, the notch 211 on the face frame 210 is disposed on the face frame 210 corresponding to the position of the air guide duct 300, and the opening shape and area of the notch 211 are the same as those of the air guide duct 300, so as to ensure that all low-frequency sound waves in the air guide duct 300 are transmitted to the outside through the notch 211, thereby preventing part of the sound waves from reverberating in the sounding cavity 200 and affecting the sound quality of the sounding unit.

It should be understood that the air duct 300 is not limited to be formed into a circular ring by three sets, and in other embodiments, two, four, or five sets of air ducts 300 may be formed into a circular ring around the inner wall of the sounding cavity 200 according to actual production requirements. The present invention does not describe the number of the combined wind guide ducts 300, and it should be understood that the number of the combined wind guide ducts 300 can be flexibly changed without departing from the basic concept of the present invention, and all the combined wind guide ducts 300 should be considered to be within the protection scope defined by the present invention.

In some embodiments of the present invention, as shown in fig. 1-3, the duct 300 comprises a top connector 310, a middle channel 320 and a bottom cover 330, which are combined into a fan-shaped duct 300 by three components. The top connecting piece 310 can be dismantled with the top of middle part channel part 320 and be connected, specifically, the top connecting piece 310 is the apron form, one end intercommunication notch 211, and the other end passes through the screw to be connected with middle part channel part 320, and one side shape that top connecting piece 310 and notch 211 are connected matches each other with notch 211, and both closely laminate. The bottom cover 330 seals the bottom of the middle channel 320, and the two are tightly combined in a buckling or adhesion manner, so that after the three components are connected, the air guide duct 300 only has two channel openings, one channel opening is communicated with the inside of the sound-emitting cavity 200, and the other channel opening is communicated with the notch 211. If the three parts are not connected tightly enough, low-frequency sound waves can be transmitted back into the sound-emitting cavity 200 from the gaps, and interfere with the sound waves in the sound-emitting cavity 200, so that the sound quality is affected.

In some embodiments of the present invention, as shown in fig. 3, an air duct opening 321 is disposed on a side of the middle channel member 320 close to the basin frame 120, the air duct opening 321 is communicated with the top connecting member 310, the air duct opening 321 is an inlet of low-frequency sound waves inside the sounding cavity 200, and local low-frequency sound waves generated by the bass diaphragm 110 enter the air guiding duct 300 through the air duct opening 321, and are transmitted to the outside from the slot opening 211 after being refracted for multiple times.

Multiple layers of partition layers are arranged in the middle channel part 320 at equal intervals, each partition layer comprises a long partition layer 322 and a short partition layer 323, and the long partition layers 322 and the short partition layers 323 are arranged at intervals. Specifically, long barrier 322 is in intimate contact with bottom cover 330, leaving a gap between short barrier 323 and bottom cover 330, which communicates with adjacent conduits. The two long spacers 322 and the short spacer 323 form a channel corner, specifically, when on the same side, the two long spacers 322 are in close contact with the bottom cover to form two walls, and the short spacer 323 is located between the two long spacers 322 and is a middle wall, and the channels on both sides of the middle wall are connected through a gap.

The bottom cover 330 is releasably snap-fitted to the bottom of the central channel member 320, and the long compartment 322, short compartment 323 and bottom cover 330 form the corners of the channel, forming a serpentine continuous channel.

In some embodiments of the present invention, as shown in fig. 1, the plurality of air ducts 300 are disposed around the frame 120, near the sidewall of the sounding cavity 200, around the frame 120, and the low-frequency sound waves of the bass diaphragm 110 are transmitted in all directions when being transmitted to the sounding cavity 200, and the air ducts 300 surround the frame 120, that is, surround the bass diaphragm 110, so as to ensure that the transmission effects of the low-frequency sound waves at various angles are consistent, and thus the sound quality of the sounding unit is stable.

In some embodiments of the present invention, as shown in fig. 1 and 4, a centering plate 121 is disposed between the bass permanent magnet 100 and the frame 120, the center of the centering plate 121 is fixedly sleeved with the bass permanent magnet 100, the periphery of the centering plate 121 is fixedly connected with the frame 120, the centering plate 121 is made of an elastic material, and the centering plate takes the bass permanent magnet 100 as a center of a circle, and applies a uniform force to the periphery, so as to support a joint portion of the bass diaphragm 110 and the bass permanent magnet 100, and ensure that the bass permanent magnet 100 is vertical and not tilted.

In some embodiments of the present invention, as shown in fig. 4 and 5, a treble unit 130 is further disposed in front of the bass permanent magnet 100, the treble unit 130 is perpendicular to an end surface of the bass permanent magnet 100 and extends upward, the treble unit 130 and the bass permanent magnet 100 are connected by a center post 140, the center post 140 is sleeved with the middle of the bass permanent magnet 100, the center post 140 is coaxially disposed with the bass permanent magnet 100, the top of the center post 140 is connected with the treble unit 130, the center post 140 is disposed in a hollow manner, and wiring of the treble unit 130 can be routed from the center post 140.

In some embodiments of the present invention, as shown in fig. 1 and 5, a transformer 220 is disposed in the sounding chamber 200, the transformer 220 is electrically connected to the bass permanent magnet 100 and the treble unit 130, and a band switch 230 is disposed on the face frame 210, and the band switch 230 is electrically connected to the transformer 220. The band switch 230 is used for adjusting the power of the bass permanent magnet 100 and the treble unit 130, the structure of the band switch 230 is that a plurality of copper sheets are arranged below the switch at intervals, and when the band switch 230 is screwed, a contact column of the switch is communicated with the copper sheets, so that the passing current is changed, and the power adjustment is realized. The specific structure of the band switch 230 is not described in detail in the present invention, and is well known to those skilled in the art.

As shown in fig. 1 and 6, a terminal connector 240 and a wire buckle 250 are disposed on a side wall of the sounding cavity 200, the terminal connector 240 is electrically connected to the band switch 230, the bass permanent magnet 100 and the treble unit 130, respectively, a wire of the terminal connector 240 passes through the wire buckle 250 to be connected to the outside, the terminal connector 240 is fixed on an inner wall of the sounding cavity 200, the wire buckle 250 is fixed on an outer wall of the sounding cavity 200, the position of the corresponding terminal connector 240 is fixed, the wire of the terminal connector 240 passes through the wire buckle 250, screws are disposed at two ends of the wire buckle 250, and the wire can be clamped by tightening the screws at two sides, so that the position of the wire is fixed, and the wire can be prevented from being loosened due to pulling.

In some embodiments of the present invention, as shown in fig. 1, 5 and 6, a plurality of foot buckles 400 are disposed on a periphery of a side of the face frame 210 facing the sound-generating cavity 200, the foot buckles 400 are connected to the face frame 210 at equal intervals, the foot buckles 400 are used for fixing the face frame 210 to a mounting surface, the mounting surface may be a ceiling, a decorative panel, a speaker frame, or a wall, a mounting hole is reserved on the mounting surface, and a depth of the mounting hole is greater than a thickness of the sound-generating unit, so as to ensure that the sound-generating unit can be mounted in the mounting surface.

As shown in fig. 7, in the present embodiment, the climber 400 is fixed by driving the movable button 420 to be close to the mounting surface by a bolt, the climber 400 includes a hollow fixing column 410 with a slot, the movable button 420 is slidably connected in the fixing column 410, a bolt is disposed in the fixing column 410, and the movable button 420 is sleeved with the bolt. A user turns the bolt through a tool, the bolt idles in the fixed column 410, the movable buckle 420 is sleeved on the bolt, and under the limiting effect of the fixed column 410, when the bolt is turned clockwise, the movable buckle 420 is close to the mounting surface, so that the mounting surface and the face frame 210 are locked. When the bolt is turned anticlockwise, the movable opening is far away from the mounting surface, and is in an unlocking state at the moment, when the movable buckle 420 moves to the top of the fixed column 410, the accommodating groove 411 is formed in one side of the fixed column 410, the movable buckle 420 rotates anticlockwise and is embedded into the accommodating groove 411, so that the movable buckle 420 is hidden in the face frame 210, the diameter of the sound generating unit is kept unchanged, and the sound generating unit is convenient to mount in a mounting hole position.

It should be understood that the structure of the climber 400 in this embodiment is not the only embodiment, and in other embodiments, a fast mounting and dismounting device and a fixing device for wall top equipment, which are convenient to mount and dismount, may be adopted by the wall top equipment in the chinese utility model "CN 201920272712.7" and "CN 201920321352.5". The structure of the sound generating unit fixed on the installation surface is not repeated in the utility model, and it should be understood that the structure of the sound generating unit fixed on the installation surface can be flexibly changed without departing from the basic concept of the utility model, and the structure is considered to be within the protection scope defined by the utility model.

In some embodiments of the present invention, as shown in fig. 1, a protective cover 260 covers a surface of the face frame 210, and the protective cover 260 is detachably connected to the face frame 210, specifically, the protective cover 260 may adopt a magnetic attraction connection, a screw connection, a snap connection, and the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A sounding unit with a low-frequency enhancement structure comprises a bass permanent magnet (100) and a bass diaphragm (110), wherein the bass permanent magnet (100) and the bass diaphragm (110) are installed in a basin stand (120), and the basin stand (120) is installed in a sounding cavity (200); it is characterized by comprising:

the face frame (210) is detachably connected with the top of the sounding cavity (200), and the basin frame (120) is detachably embedded in a hollow-out position in the middle of the face frame (210);

the air guide pipelines (300) are arranged in the sounding cavity (200), a plurality of notches (211) are formed in the periphery of the face frame (210), one end of each air guide pipeline (300) is communicated with the notches (211), the other end of each air guide pipeline is communicated with the inside of the sounding cavity (200), the air guide pipelines (300) are arranged in a winding mode, and the pipelines are arranged in a multi-layer bending mode;

the periphery of the basin frame (120) is arranged in a hollow mode, and the interior of the basin frame (120) is communicated with the sounding cavity (200).

2. The sound generating unit with the low frequency enhancement structure according to claim 1, wherein the air duct (300) comprises a top connecting member (310), a middle channel member (320) and a bottom covering member (330), the top connecting member (310) is detachably connected with the top of the middle channel member (320), one end of the top connecting member (310) is communicated with the notch (211), and the bottom covering member (330) closes the bottom of the middle channel member (320).

3. The sound generating unit with low frequency enhancing structure as claimed in claim 2, wherein a side of said middle channel member (320) close to said tub support (120) is provided with an air duct opening (321), said air duct opening (321) communicating with said top connecting member (310).

4. A sound-emitting unit with a low frequency enhancing structure according to claim 3, characterized in that multiple layers of partition layers are arranged at equal intervals in the middle channel member (320), the partition layers comprise a long partition layer (322) and a short partition layer (323), and the long partition layer (322) and the short partition layer (323) are arranged at intervals;

the long interlayer (322) is in close contact with the bottom cover part (330), and a gap is reserved between the short interlayer (323) and the bottom cover part (330) to communicate with adjacent pipelines;

the bottom cover (330) is detachably fastened with the bottom of the middle channel member (320), so that the long partition layer (322) and the short partition layer (323) are communicated to form a winding continuous channel.

5. The sound generating unit with the low frequency enhancement structure as claimed in claim 1, wherein a plurality of the air guiding ducts (300) are arranged around the basin stand (120) near the sidewall of the sound generating chamber (200) with the basin stand (120) as a center.

6. The sound generating unit with the low frequency enhancement structure as claimed in claim 1, wherein a centering plate (121) is disposed between the bass permanent magnet (100) and the frame (120), the center of the centering plate (121) is fixedly sleeved with the bass permanent magnet (100), and the periphery of the centering plate (121) is fixedly connected with the frame (120).

7. The sound generating unit with the low frequency enhancing structure as claimed in claim 1, wherein a treble unit (130) is further disposed in front of the bass permanent magnet (100), the treble unit (130) extends upward perpendicular to the end surface of the bass permanent magnet (100), and the treble unit (130) and the bass permanent magnet (100) are connected by a center post (140).

8. The sound generating unit with the low frequency enhancing structure as claimed in claim 7, wherein a transformer (220) is disposed in the sound generating cavity (200), the transformer (220) is electrically connected to the bass permanent magnet (100) and the treble unit (130), a band switch (230) is disposed on the face frame (210), the band switch (230) is electrically connected to the transformer (220), and the band switch (230) is used for adjusting the power of the bass permanent magnet (100) and the treble unit (130);

the lateral wall of sound production cavity (200) is provided with terminal connector (240) and line and detains (250), terminal connector (240) respectively with wave band switch (230) bass permanent magnet (100) with high pitch unit (130) electricity is connected, the wire rod of terminal connector (240) passes line is detained (250) and is connected with the external world, the position that line is used for fixed wire rod is detained (250) to the line.

9. The sound generating unit with the low frequency enhancement structure as claimed in any one of claims 1 to 8, wherein the periphery of the face frame (210) facing the sound generating cavity (200) is provided with a plurality of fasteners (400), the fasteners (400) are connected to the face frame (210) at equal intervals, and the fasteners (400) are used for fixing the face frame (210) to a mounting surface;

the mounting surface may be a ceiling, a decorative panel, a speaker frame, and a wall.

10. The sound generating unit with a low frequency enhancement structure as claimed in claim 1, wherein the surface of the face frame (210) is covered with a protective cover (260), and the protective cover (260) is detachably connected to the face frame (210).