CN209861159U - Coaxial loudspeaker - Google Patents

Abstract

The utility model provides a coaxial loudspeaker, above-mentioned coaxial loudspeaker include woofer unit and high pitch loudspeaker unit, and the woofer unit includes the bass vibration diaphragm. A sealing suspension edge is arranged between the bass loudspeaker unit and the high pitch loudspeaker unit and is used for sealing the bass loudspeaker unit in the direction of the bass vibration diaphragm; the sealed dangling limit with the sealed chamber that forms of space between the woofer unit, the woofer unit or the hole of exhausting has been seted up to the tweeter unit. The sealing suspension edge is used for sealing an exhaust gap between the woofer unit and the tweeter unit, can prevent water, dust and other impurities from entering the inside of the woofer unit from the front of the coaxial loudspeaker, and improves the waterproof performance of the coaxial loudspeaker. When vibrations group vibrations produced the air current, the air current is discharged through the exhaust hole, and the exhaust hole can make the sealed intracavity gas velocity of flow stable, prevents that gas flow from influencing the bass effect.

Description

Coaxial loudspeaker

Technical Field

The utility model relates to a speaker field, concretely relates to integrated coaxial loudspeaker who has high pitch loudspeaker unit and woofer unit.

Background

The coaxial speaker is a speaker which is integrated with a high pitch speaker unit and a low pitch speaker unit, and the high pitch speaker unit and the low pitch speaker unit are coaxially arranged. The high pitch loudspeaker unit of coaxial speaker and the point sound source of low pitch loudspeaker unit all are located the front of speaker, and this front refers to the face at low pitch vibrating diaphragm and the high pitch vibrating diaphragm place of high pitch loudspeaker unit of low pitch loudspeaker unit.

At present, among the present coaxial loudspeaker, woofer unit is whole or partial part encircles the high pitch loudspeaker unit setting, wherein encircles the bass voice coil loudspeaker voice coil and the bass vibrating diaphragm that the high pitch loudspeaker unit set up and shake at the during operation, and bass voice coil loudspeaker voice coil and bass vibrating diaphragm constitute vibrations group, can only swing joint between vibrations group and the high pitch loudspeaker unit. When the bass loudspeaker unit of the coaxial loudspeaker plays bass, the vibration group of the bass loudspeaker unit vibrates, the vibration amplitude of the vibration group is large, certain air flow can be generated when the vibration group vibrates, and the air flow flows to the outside of the coaxial loudspeaker through an exhaust gap between the vibration group and the high-pitch loudspeaker unit.

The existence of the exhaust gap leads to that the coaxial loudspeaker can not meet the waterproof requirement of the whole machine, and the design of a passive radiator scheme can not be adopted to promote the low-frequency response. Meanwhile, when the front face of the coaxial loudspeaker is sealed by sealing structures such as a sealing layer to form a sealing space, air flow generated by vibration of the vibration group cannot be discharged, air pressure in the sealing space can be slightly improved, and turbulent flow easily occurs in air in the sealing space, so that the bass effect of the woofer unit is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a coaxial loudspeaker, the problem that aims at solving is: how to improve the waterproof performance of the coaxial speaker without affecting the bass effect of the woofer unit.

In order to solve the above problem, the utility model provides a coaxial loudspeaker, coaxial loudspeaker includes woofer unit and high pitch loudspeaker unit, the woofer unit includes the bass vibrating diaphragm. The woofer unit with be provided with sealed dangling limit between the tweeter unit, sealed dangling limit is used for the woofer unit is in the sealing of bass vibrating diaphragm place direction. Sealed dangling limit with the sealed chamber that forms of space between the woofer unit, the woofer unit or the hole of exhausting has been seted up to the tweeter unit, the hole of exhausting is used for deriving in the sealed chamber the air current that produces when the woofer unit broadcast bass.

In the present application, the above-mentioned derivation means that the air flow in the sealed cavity is derived from the sealed cavity. The air flow can be redirected to any other location within the coaxial speaker other than the sealed chamber without affecting the operation of components within the coaxial speaker. The utility model discloses in the patent application, sealed dangling limit is used for the woofer unit is in the sealing of bass vibrating diaphragm place direction can directly learn, and above-mentioned exhaust hole can not directly set up on sealed dangling limit to avoid destroying the sealed effect on sealed dangling limit.

Preferably, one side that tweeter unit was kept away from to sealed dangling limit with bass vibrating diaphragm sealing connection, one side that sealed dangling limit is close to tweeter unit with tweeter unit's outer wall sealing connection.

Sealed dangling limit is kept away from one side of high pitch loudspeaker unit and is connected the bass vibrating diaphragm, and the outer wall of high pitch loudspeaker unit is connected to relative opposite side, when can seal the exhaust gap between vibrations group and the high pitch loudspeaker unit, can also reduce the area of sealed dangling limit.

Still preferably, the sealed cavity is enclosed by the sealing overhang, the bass diaphragm and the outer wall of the tweeter unit; the woofer unit still includes the bass voice coil loudspeaker voice coil, the bass voice coil loudspeaker voice coil with the vibrations group is constituteed to the bass vibrating diaphragm, vibrations group with the tweeter unit leave exhaust gap between the outer wall, exhaust gap with the sealed chamber is linked together.

Sealed dangling limit bass vibrating diaphragm with the high pitch loudspeaker unit the outer wall encloses into sealed chamber, can receive and collect the air current that vibrations produced because of vibrations group, then discharges the air current through the exhaust hole.

Preferably, the air vent is formed in the bass diaphragm, and the sealing cavity is communicated with the space at the rear part of the bass diaphragm through the air vent.

The exhaust hole is opened on the bass vibrating diaphragm, and when the air flow generated by vibration of the vibration group is collected in the sealing cavity, the air flow enters the rear part of the bass vibrating diaphragm through the exhaust hole, so that the bass air flow is prevented from influencing the bass effect of the bass loudspeaker unit.

Preferably, the low-pitch vibrating diaphragm is composed of an inner-side vibrating diaphragm close to the high-pitch loudspeaker unit and an outer-side vibrating diaphragm far away from the high-pitch loudspeaker unit, and the inner-side vibrating diaphragm and the outer-side vibrating diaphragm are integrally formed; one side sealing connection that the high pitch loudspeaker unit was kept away from to sealed dangling limit inboard vibrating diaphragm with the juncture of outside vibrating diaphragm.

In coaxial loudspeaker, inboard vibrating diaphragm is close to the high pitch loudspeaker unit, and the air current that inboard vibrating diaphragm vibrations produced influences the high pitch effect of high pitch loudspeaker unit great. Sealed dangling limit is kept away from one side sealing connection of high pitch loudspeaker unit inboard vibrating diaphragm with the juncture of outside vibrating diaphragm, sealed dangling limit can collect the air current that inboard vibrating diaphragm vibrations produced, prevents that the air current that inboard vibrating diaphragm vibrations produced from influencing the high pitch effect of high pitch loudspeaker unit.

Preferably again, one side that sealed dangling limit is close to the high pitch loudspeaker unit and one side of keeping away from the high pitch loudspeaker unit is provided with in-connection limit and outer connection limit respectively, sealed dangling limit passes through in-connection limit laminating and sealing connection the high pitch loudspeaker unit on the outer wall, outer connection limit laminating and sealing connection be in inboard vibrating diaphragm with the outside vibrating diaphragm the juncture.

The setting on in-connection limit and outer connection limit is convenient for sealed dangling limit difference sealing connection the high pitch loudspeaker unit outer wall and bass vibrating diaphragm.

Preferably, the high pitch loudspeaker unit comprises a high pitch front shell, a high pitch diaphragm is arranged in the high pitch front shell, and a high pitch horn is arranged on the high pitch front shell; the sealing suspension edge is positioned on the outer side of the high-pitch horn, the outer side refers to the side far away from the center of the coaxial loudspeaker, and the height of the sealing suspension edge is lower than that of the high-pitch horn.

The setting of high pitch horn except being used for restricting the sound propagation direction, can also be used for keeping apart bass vibrating diaphragm and high pitch vibrating diaphragm, reduces high pitch loudspeaker unit and low pitch loudspeaker unit's mutual influence.

Preferably, the outer side of the top end of the high pitch front shell is provided with a step, and the outer side refers to the side of the high pitch front shell close to the bass loudspeaker unit; one side that sealed dangling limit is close to the tweeter unit is provided with the internal connection limit, the laminating of internal connection limit and sealing connection are in the bottom of step. The lower end of the high-pitch horn is attached to the upper end of the inner connecting edge and is mounted on the step.

The step is used for sealing and connecting the inner connecting edge and is also used for mounting a high-pitch horn; the step can simplify the installation work of the inner connecting edge and the high-pitch horn.

Preferably, the coaxial speaker further comprises a frame, a bass voice coil and a bass vibration diaphragm of the bass speaker unit are located in the frame, and the frame is provided with air holes; the frame is mounted within the packaging structure of the coaxial speaker.

The air holes are formed in the basin frame, the cavity between the packaging structure and the basin frame is connected with the cavity in the basin frame, the vibration group can suck air from a larger space, the vibration group can also exhaust the air to a larger space, and therefore the air pressure in the sub-region in the basin frame is prevented from being too low or too high.

Preferably again, one side that high pitch loudspeaker unit was kept away from to the bass vibrating diaphragm still is provided with the vibrating diaphragm and hangs the limit, one side that high pitch loudspeaker unit was kept away from to the vibrating diaphragm hangs the limit and is connected with the upper end of basin frame.

One side that the high pitch loudspeaker unit was kept away from to vibrating diaphragm dangling limit is connected with the upper end of basin frame, and it is sealed through sealed dangling limit between low pitch vibrating diaphragm and the high pitch loudspeaker unit, finally realizes that the low pitch loudspeaker unit is at the ascending sealing of low pitch vibrating diaphragm side, improves coaxial loudspeaker's waterproof performance.

The utility model provides an among the technical scheme the woofer unit with set up sealed dangling limit between the tweeter unit, accomplish the sealing of woofer unit in the bass vibrating diaphragm side. The sealing suspension edge can prevent water, dust and other impurities from entering the interior of the woofer unit from the front face of the coaxial speaker, and the waterproof performance of the coaxial speaker is improved.

Meanwhile, the sealed cavity sealed by the sealed suspension edge is also provided with an exhaust hole, and when the vibration group vibrates to generate air flow, the air flow is exhausted through the exhaust hole. The arrangement of the exhaust hole can prevent airflow from accumulating in the sealing cavity to form a high-pressure environment, and prevent turbulence in the sealing cavity; the exhaust hole can stabilize the gas flow velocity in the sealing cavity, and the gas flow is prevented from influencing the bass effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a partial sectional view of a coaxial speaker according to embodiment 1 of the present invention.

Fig. 2 is a side view of a coaxial speaker according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of a first three-dimensional structure of a coaxial speaker according to embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of a second three-dimensional structure of a coaxial speaker according to embodiment 1 of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				11	Bass vibrating diaphragm	15	Basin rack
111	Air vent	151	Air vent
				112	Vibrating diaphragm suspension edge	16	High pitch front shell
12	Sealing suspension edge	161	Step
				13	Bass voice coil	21	High pitch horn
14	Exhaust gap	22	High-pitch vibrating diaphragm

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Example 1

The present embodiment provides a coaxial speaker, and fig. 1 provides a partial cross-sectional view of a coaxial speaker, as shown in fig. 1, the coaxial speaker includes a woofer unit and a tweeter unit, and the woofer unit includes a woofer diaphragm 11. A sealing suspension edge 12 is arranged between the bass loudspeaker unit and the treble loudspeaker unit, and the sealing suspension edge 12 is used for sealing the bass loudspeaker unit in the direction of the bass diaphragm 11. Sealed dangling limit 12 with the sealed chamber that forms of space between the woofer unit, the woofer unit or the vent 111 has been seted up to the tweeter unit, vent 111 is used for deriving in the sealed chamber the air current that produces when the woofer unit broadcast bass.

In this embodiment, the above-mentioned guiding out means guiding out the air flow in the sealed cavity from the sealed cavity. The air flow can be redirected to any other location within the coaxial speaker other than the sealed chamber without affecting the operation of components within the coaxial speaker. The utility model discloses in the patent application, sealed dangling limit 12 is used for the woofer unit is in the sealing of 11 places directions of bass vibrating diaphragm can directly learn, and above-mentioned exhaust hole 111 can not directly be seted up on sealed dangling limit 12 to avoid destroying the sealed effect of sealed dangling limit 12.

When the air vent 111 is not opened on the sealing hanging edge 12, the air vent 111 may be opened at any position of the woofer unit or the tweeter unit, and further, the air flow in the sealing chamber is discharged through the air vent 111.

Bass voice coil 13 and bass vibrating diaphragm 11 of woofer unit constitute vibrations group, and when coaxial speaker's woofer unit broadcast bass, the vibrations of above-mentioned vibrations group, and the vibration amplitude is great when group shakes, can produce certain air current when group shakes, and this air current flows to coaxial speaker's front through shaking exhaust gap 14 between group and the tweeter unit. The sealing overhang 12 is used to seal the exhaust gap 14, when the sealing overhang 12 is connected to the vibration group, the sealing overhang 12 should not affect the vibration of the vibration group, and in order not to affect the vibration of the vibration group, the sealing overhang may be made of a flexible material or an elastic material. The sealing overhang 12 can prevent water, dust and other impurities from entering the inside of the woofer unit from the front of the coaxial speaker, improving the waterproof performance of the coaxial speaker. Simultaneously, the woofer unit or the tweeter unit has still seted up exhaust hole 111, and when vibrations group vibrations produced the air current, the air current was discharged through exhaust hole 111, and exhaust hole 111 can make the sealed intracavity gas velocity of flow stable, prevents that the air current from influencing the bass effect.

Specifically, in this embodiment, as shown in fig. 1, the side of the sealing overhang 12 away from the tweeter unit is hermetically connected to the bass diaphragm 11, and the side of the sealing overhang 12 close to the tweeter unit is hermetically connected to the outer wall of the tweeter unit, which may be the outer wall of the tweeter front housing 16. After the sealing suspension edge 12 is arranged, the sealing suspension edge 12, the bass diaphragm 11 and the outer wall of the high pitch loudspeaker unit are enclosed to form the sealing cavity. In the coaxial loudspeaker, the bass voice coil 13 and the bass vibration diaphragm 11 of the bass loudspeaker unit are connected and vibrate when playing bass, the bass voice coil 13 and the bass vibration diaphragm 11 form a vibration group, an exhaust gap 14 is reserved between the vibration group and the outer wall of the treble loudspeaker unit, and the exhaust gap 14 is communicated with the sealing cavity.

The sealed side of hanging 12 is kept away from the one side of high pitch loudspeaker unit and is connected bass vibrating diaphragm 11, and the outer wall of high pitch loudspeaker unit is connected to the opposite side, can seal the exhaust gap 14 between vibrations group and the high pitch loudspeaker unit in the time, can also reduce the area of sealed side of hanging 12. Meanwhile, the outer walls of the sealing suspended edge 12, the bass diaphragm 11 and the tweeter unit enclose a sealing cavity, which can receive and collect the air flow generated by the vibration of the vibration set, and then discharge the air flow through the exhaust hole 111.

More specifically, in this embodiment, as shown in fig. 1, the air vent hole 111 is formed in the bass diaphragm 11, and the sealed cavity is communicated with a space behind the bass diaphragm 11 through the air vent hole 111. Of course, the exhaust hole 111 for exhausting the gas may be formed at other positions, for example, the exhaust hole 111 is formed on the outer wall of the tweeter unit, and when the exhaust hole 111 is formed on the outer wall of the tweeter unit, the gas should be guided to other positions through the air guide tube in order to prevent the air flow from affecting the treble effect of the tweeter unit. When setting up exhaust hole 111 on bass vibrating diaphragm 11, need not to connect the air duct on exhaust hole 111, when vibrations of vibrations group produced the air current, and when collecting the air current that vibrations of vibrations group produced in the sealed intracavity, the air current directly flows to the rear portion of bass vibrating diaphragm 11 through exhaust hole 111, prevents that bass air current from influencing the bass effect of woofer unit.

More specifically, one side of the above-mentioned sealed dangling edge 12, which is far away from the tweeter unit, is connected to the bass diaphragm 11 in a sealing manner, and one side of the sealed dangling edge 12, which is far away from the tweeter unit, can be connected to one side of the bass diaphragm 11, which is close to the tweeter, one side of the sealed dangling edge, which is far away from the tweeter unit, or the middle of the bass diaphragm 11. In the present embodiment, as shown in fig. 1, the side of the seal suspended edge 12 remote from the tweeter unit is attached to the middle of the bass diaphragm 11. When one side of the sealing suspension edge 12, which is far away from the high pitch loudspeaker unit, is connected to the middle part of the low pitch vibrating diaphragm 11, for convenience of description, the low pitch vibrating diaphragm 11 is divided into an inner side vibrating diaphragm and an outer side vibrating diaphragm by taking the connecting part of the sealing suspension edge 12 and the low pitch vibrating diaphragm 11 as a boundary, the inner side vibrating diaphragm is close to the high pitch loudspeaker unit, and the outer side vibrating diaphragm is far away from the high pitch loudspeaker unit; the inner vibrating diaphragm and the outer vibrating diaphragm are not separated, and are integrally formed; one side of the sealing suspension edge 12, which is far away from the high pitch loudspeaker unit, is connected at the junction of the inner vibrating diaphragm and the outer vibrating diaphragm in a sealing manner. In coaxial loudspeaker, inboard vibrating diaphragm is close to the high pitch loudspeaker unit, and the air current that inboard vibrating diaphragm vibrations produced influences the high pitch effect of high pitch loudspeaker unit great. Sealed dangling limit 12 keeps away from one side sealing connection of high pitch loudspeaker unit inboard vibrating diaphragm with the juncture of outside vibrating diaphragm, sealed dangling limit 12 can collect the air current that inboard vibrating diaphragm vibrations produced, prevents that the air current that inboard vibrating diaphragm vibrations produced from influencing high pitch loudspeaker unit's high pitch effect.

More specifically, this embodiment still provides the connected mode of sealed dangling limit 12 both sides, and in this embodiment, as shown in fig. 1, one side that is close to the tweeter unit of sealed dangling limit 12 and one side of keeping away from the tweeter unit are provided with interior connection limit and outer connection limit respectively, and sealed dangling limit 12 passes through interior connection limit laminating and sealing connection on the outer wall of tweeter unit, outer connection limit laminating and sealing connection inboard vibrating diaphragm with the juncture of outside vibrating diaphragm. The arrangement of internal connection limit and external connection limit is convenient for sealed dangling limit 12 is outer wall and the bass vibrating diaphragm 11 of sealing connection tweeter unit respectively.

Specifically, in the present embodiment, as shown in fig. 1 and fig. 3, the tweeter unit may further include a tweeter front shell 16, a tweeter diaphragm 22 is disposed in the tweeter front shell 16, and a tweeter horn 21 is mounted on the tweeter front shell 16; the sealing suspension edge 12 is located at the junction of the high-pitch horn 21 and the high-pitch front shell 16, and the height of the sealing suspension edge 12 is lower than that of the high-pitch horn 21. A high pitch horn 21 is provided on the tweeter unit, and the high pitch horn 21 is higher than the bass diaphragm 11. The tweeter 22 is used to separate the woofer 11 and the tweeter 22, in addition to limiting the direction of sound propagation, to reduce the mutual influence of the tweeter unit and the woofer unit. Simultaneously, above-mentioned bass vibrating diaphragm 11 is less than high pitch horn 21, and when bass vibrating diaphragm 11 vibrations produced the air current, the air current can't get into the space that high pitch horn 21 encloses, and high pitch horn 21 can reduce the influence of air current to the high pitch effect.

More specifically, as shown in fig. 1, the treble front housing 16 may also be used to connect the sealing overhang 12, and in this embodiment, a step 161 is provided on the outer side of the top end of the treble front housing 16, which in this embodiment is the side of the tweeter unit close to the woofer unit. The inner side of the sealing overhang 12 is provided with an inner connecting edge, and in this embodiment, the inner side is the side close to the tweeter unit. The inner connecting edge is attached and sealed to the bottom of the step 161. The lower end of the high pitch horn 21 is attached to the upper end of the inner connecting edge and is mounted on the step 161. The step 161 is used for sealing the inner connecting edge and also for mounting the high horn 21; the installation work of the inner connecting edge and the high pitch horn 21 can be simplified by installing the seal overhang edge 12 and the high pitch horn 21 on the step 161.

Specifically, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the coaxial speaker provided in this embodiment may further include a frame 15, the bass voice coil 13 and the bass diaphragm 11 of the woofer unit are located in the frame 15, and the frame 15 is provided with an air vent 151; the frame 15 is mounted within the enclosure of the coaxial loudspeaker. Above-mentioned basin frame 15 is used for installing woofer unit and tweeter unit, set up bleeder vent 151 on basin frame 15 simultaneously, the cavity in basin frame 15 is connected to the cavity between packaging structure and the basin frame 15, vibrations group not only with the cavity intercommunication in basin frame 15, still be linked together with the cavity between packaging structure and the basin frame 15, vibrations group can follow bigger space suction gas, vibrations group also can arrange gas to bigger space, and then prevent that basin frame 15 inside subregion atmospheric pressure from crossing excessively low or too high.

More specifically, as shown in fig. 1, 2 and 3, a diaphragm overhanging edge 112 is further disposed on a side of the bass diaphragm 11 away from the tweeter unit, and a side of the diaphragm overhanging edge 112 away from the tweeter unit is connected to an upper end of the frame 15. In this embodiment, one side that the high pitch loudspeaker unit was kept away from to vibrating diaphragm dangling limit 112 is connected with the upper end of basin frame 15, and it is sealed through sealed dangling limit 12 between bass vibrating diaphragm 11 and the high pitch loudspeaker unit, finally realizes the sealing of bass loudspeaker unit in the 11 ascending directions of bass vibrating diaphragm, improves coaxial speaker's waterproof performance.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A coaxial speaker comprising a woofer unit and a tweeter unit, the woofer unit including a woofer diaphragm, characterized in that,

a sealing suspension edge is arranged between the bass loudspeaker unit and the high pitch loudspeaker unit and used for sealing the bass loudspeaker unit in the direction of the low pitch diaphragm;

sealed dangling limit with the sealed chamber that forms of space between the woofer unit, the woofer unit or the hole of exhausting has been seted up to the tweeter unit, the hole of exhausting is used for deriving in the sealed chamber the air current that produces when the woofer unit broadcast bass.

2. The coaxial speaker of claim 1,

one side that tweeter unit was kept away from to sealed dangling limit with bass vibrating diaphragm sealing connection, one side that sealed dangling limit is close to tweeter unit with tweeter unit's outer wall sealing connection.

3. The coaxial speaker of claim 2,

the sealed cavity is enclosed by the sealing suspension edge, the bass diaphragm and the outer wall of the tweeter unit;

the woofer unit still includes the bass voice coil loudspeaker voice coil, the bass voice coil loudspeaker voice coil with the vibrations group is constituteed to the bass vibrating diaphragm, vibrations group with the tweeter unit leave exhaust gap between the outer wall, exhaust gap with the sealed chamber is linked together.

4. The coaxial speaker of claim 2,

the exhaust hole is formed in the bass vibrating diaphragm, and the sealing cavity is communicated with the space at the rear part of the bass vibrating diaphragm through the exhaust hole.

5. The coaxial speaker of claim 2,

the low-pitch vibrating diaphragm consists of an inner vibrating diaphragm close to the high-pitch loudspeaker unit and an outer vibrating diaphragm far away from the high-pitch loudspeaker unit, and the inner vibrating diaphragm and the outer vibrating diaphragm are integrally formed; one side sealing connection that the high pitch loudspeaker unit was kept away from to sealed dangling limit inboard vibrating diaphragm with the juncture of outside vibrating diaphragm.

6. The coaxial speaker of claim 5,

sealed dangling limit is close to one side of high pitch loudspeaker unit and the one side of keeping away from high pitch loudspeaker unit is provided with in-connection limit and outer connection limit respectively, sealed dangling limit passes through in-connection limit laminating and sealing connection the high pitch loudspeaker unit on the outer wall, outer connection limit laminating and sealing connection be in inboard vibrating diaphragm with the outside vibrating diaphragm the juncture.

7. The coaxial speaker of any one of claims 1 to 5,

the high pitch loudspeaker unit comprises a high pitch front shell, a high pitch diaphragm is arranged in the high pitch front shell, and a high pitch horn is arranged on the high pitch front shell; the sealing suspension edge is located on the outer side of the high-pitch horn, and the height of the sealing suspension edge is lower than that of the high-pitch horn.

8. The coaxial speaker of claim 7,

the top end of the high pitch front shell is provided with a step, one side of the sealing suspension edge close to the high pitch loudspeaker unit is provided with an inner connecting edge, and the inner connecting edge is attached to and hermetically connected with the bottom of the step;

the lower end of the high-pitch horn is attached to the upper end of the inner connecting edge and is mounted on the step.

9. The coaxial speaker of any one of claims 1 to 6,

the coaxial loudspeaker also comprises a frame, a bass voice coil and a bass vibration diaphragm of the bass loudspeaker unit are positioned in the frame, and the frame is provided with air holes; the frame is mounted within the packaging structure of the coaxial speaker.

10. The coaxial speaker of claim 9,

one side that high pitch loudspeaker unit was kept away from to the bass vibrating diaphragm still is provided with the vibrating diaphragm and hangs the limit, one side that high pitch loudspeaker unit was kept away from to the vibrating diaphragm hangs the limit and is connected with the upper end of basin frame.