CN209017303U - A kind of narrowband highly directive high sound pressure alarm speaker - Google Patents

Abstract

The utility model discloses a kind of narrowband highly directive high sound pressure alarm speakers, including outer big cylinder, pedestal cooling fin, U-shaped yoke, magnet steel, pole piece, sound film, sound pad, phase plug, upper cover, middle cylinder and u-bracket, the bottom interior wall of the outer big cylinder is fixed with U-shaped yoke, the U-shaped yoke is internally provided with magnet steel, pole piece is provided with above the U-shaped yoke, sound film is fixed at the top of the pole piece, the bottom of the sound film is fixed with sound pad, is fixedly connected at the top of the bottom of the sound pad and U-shaped yoke.The utility model protrudes corrugated by the way that the bottom interior wall for the middle cylinder being located above upper cover is arranged to, it can be in order to the compressed sound of aditus laryngis, it is conducted along upper cover and the gap location of middle cylinder, and according to the principle of foldover design, the bottom end of sound therefrom cylinder comes out, then by outer big cylinder by acoustic radiating into air, it is possible to realize that output acoustic pressure is high, and the effect that sound directivity is strong, practicability are stronger.

Description

A kind of narrowband highly directive high sound pressure alarm speaker

Technical field

The utility model relates to loudspeaker apparatus technical field, specially a kind of narrowband highly directive high sound pressure alarm loudspeaking Device.

Background technique

Loudspeaker is also known as " loudspeaker ", is a kind of very common electro-acoustic transducer device, in the electronic electric equipment of sounding It can be seen, loudspeaker is a kind of energy transducer for electric signal being changed into acoustical signal, and the performance superiority and inferiority of loudspeaker is to sound quality Influence it is very big, loudspeaker is a most weak device in stereo set, and for acoustics, it is one again Most important component, loudspeaker it is many kinds of, and price differs greatly, and audio electric energy passes through electromagnetism, piezoelectricity or electrostatic effect It answers, make its cone or diaphragm vibration and generates resonance (sympathetic response) with the air of surrounding and make a sound, in daily life, such as Public security department, fire department, rescue department can all use alarm, just will use loudspeaker in alarm.

But the output acoustic pressure of alarm is low at present, propagation distance is short；Directive property is poor, cannot for specific region covering and Use reliability is low, therefore we have proposed a kind of narrowband highly directive high sound pressure alarm speakers to solve the above problems.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of narrowband highly directive high sound pressure alarm speaker, The output acoustic pressure for solving existing alarm is low, propagation distance is short, directive property is poor, cannot be for specific region covering and use can The problem low by property.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of narrowband highly directive high sound pressure alarm Loudspeaker, including outer big cylinder, pedestal cooling fin, U-shaped yoke, magnet steel, pole piece, sound film, sound pad, phase plug, upper cover, middle cylinder and U Type bracket, the bottom interior wall of the outer big cylinder are fixed with U-shaped yoke, and the U-shaped yoke is internally provided with magnet steel, described U-shaped It is provided with pole piece above yoke, sound film is fixed at the top of the pole piece, the bottom of the sound film is fixed with sound pad, the sound It is fixedly connected at the top of the bottom of pad and U-shaped yoke, phase plug is installed at the top of the sound film, is set at the top of the phase plug It is equipped with upper cover, the bottom of the upper cover is fixedly connected with the bottom interior wall of outer big cylinder, and middle cylinder, institute are provided at the top of the upper cover The bottom for stating middle cylinder is fixedly connected with the bottom interior wall of outer big cylinder.

The technical program is advanced optimized, the two sidewalls of the outer big cylinder, which pass through, is connected with u-bracket in pin rotation.

Advanced optimizing the technical program, the bottom of the outer big cylinder is fixed with pedestal cooling fin, and pedestal cooling fin Material is aluminium.

The technical program is advanced optimized, the U-shaped yoke is bowl-shape to put down, and U-shaped yoke is internally provided with and magnet steel phase The cavity of adaptation.

The technical program is advanced optimized, aditus laryngis is offered at the top of the upper cover, is arranged between the upper cover and middle cylinder There is gap.

The technical program is advanced optimized, the bottom interior wall of the middle cylinder is protrusion corrugated, and is had at the top of middle cylinder Away from being arranged at intervals with radiant panel.

The technical program is advanced optimized, aditus laryngis is offered at the top of the upper cover, the upper cover is housing shape, and internal It is provided with cavity compatible with sound film.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of narrowband highly directive high sound pressure alarm speaker, has Below the utility model has the advantages that

1, narrowband highly directive high sound pressure alarm speaker, by the way that the bottom interior wall for the middle cylinder being located above upper cover is set It is set to protrusion corrugated, can be conducted along upper cover and the gap location of middle cylinder, and root in order to the compressed sound of aditus laryngis According to the principle of foldover design, the bottom end of sound therefrom cylinder is come out, then by outer big cylinder by acoustic radiating into air, it is possible to Realize the effect that output acoustic pressure is high and sound directivity is strong, practicability is stronger.

2, the narrowband highly directive high sound pressure alarm speaker, small in volume, structure is simple, and manufacturing cost is low, real It is stronger with property.

Detailed description of the invention

Fig. 1 is the utility model entirety schematic cross-sectional view；

Fig. 2 is big barrel structure schematic diagram outside the utility model；

Fig. 3 is the utility model pedestal heat sink structure illustration；

Fig. 4 is the U-shaped yoke structure schematic diagram of the utility model；

Fig. 5 is the utility model sound membrane structure diagram；

Fig. 6 is the vertical view and present invention looks up structural representation of the utility model upper cover；

Fig. 7 is the utility model tube-in-tube structure schematic diagram；

Fig. 8 is the utility model u-bracket structural schematic diagram；

Fig. 9 is the utility model overall structure diagram.

In figure: 1, outer big cylinder；2, pedestal cooling fin；3, U-shaped yoke；4, magnet steel；5, pole piece；6, sound film；7, sound pad；8, phase Position plug；9, upper cover；10, middle cylinder；11, u-bracket；12, aditus laryngis.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-9 is please referred to, the utility model provides a kind of technical solution: a kind of narrowband highly directive high sound pressure alarm loudspeaking Device, including outer big cylinder 1, pedestal cooling fin 2, U-shaped yoke 3, magnet steel 4, pole piece 5, sound film 6, sound pad 7, phase plug 8, upper cover 9, in Cylinder 10 and u-bracket 11, the bottom interior wall of outer big cylinder 1 are fixed with U-shaped yoke 3, and U-shaped yoke 3 is internally provided with magnet steel 4, U-shaped The top of yoke 3 is provided with pole piece 5, and the top of pole piece 5 is fixed with sound film 6, and the bottom of sound film 6 is fixed with sound pad 7, sound pad 7 Bottom is fixedly connected with the top of U-shaped yoke 3, and the top of sound film 6 is equipped with phase plug 8, and the top of phase plug 8 is provided with upper cover 9, the bottom of upper cover 9 is fixedly connected with the bottom interior wall of outer big cylinder 1, and the top of upper cover 9 is provided with middle cylinder 10, the bottom of middle cylinder 10 It is fixedly connected with the bottom interior wall of outer big cylinder 1, and middle cylinder 10 is designed using waveguide transmission structural principle, the narrowband highly directive High sound pressure alarm speaker, by the way that outer big cylinder 1, pedestal cooling fin 2, U-shaped yoke 3, magnet steel 4, pole piece 5, sound film 6, sound pad is arranged 7, phase plug 8, upper cover 9 and middle cylinder 10, may be implemented output acoustic pressure height and sound directivity is strong, so practicability is stronger, it should Narrowband highly directive high sound pressure alarm speaker, small in volume, structure is simple, and manufacturing cost is low, and practicability is stronger.

Specifically, the two sidewalls of outer big cylinder 1, which pass through, is connected with u-bracket 11 in pin rotation, convenient for adjusting outer big cylinder 1 Angle.

Specifically, the bottom of outer big cylinder 1 is fixed with pedestal cooling fin 2, and the material of pedestal cooling fin 2 is aluminium, convenient for pair Element inside outer big cylinder 1 radiates.

Specifically, U-shaped yoke 3 is bowl-shape to put down, and U-shaped yoke 3 is internally provided with cavity compatible with magnet steel 4, is convenient for Magnet steel 4 is mounted in U-shaped yoke 3.

Specifically, the top of upper cover 9 offers aditus laryngis 12, it is convenient for voice compressing, is arranged between the upper cover 9 and middle cylinder 10 There is gap, convenient for sound conduction is come out.

Specifically, the bottom interior wall of middle cylinder 10 is protrusion corrugated, and the top of middle cylinder 10 has equidistant interval to be provided with spoke Plate is penetrated, preferably transfers out convenient for sound.

Specifically, upper cover 9 is housing shape, and it is internally provided with cavity compatible with sound film 6, convenient for sound film 6 is installed In upper cover 9.

When in use, from lead-out wire input terminal input AC audio signal, tone currents makes to produce in pole piece 5 by pole piece 5 Raw corresponding magnetic field, this magnetic field generate interaction force with the magnetic field in U-shaped yoke 3 and magnet steel 4, this power just makes pole piece 5 As the vibration of AC audio signal is got up in the magnetic field of U-shaped yoke 3 and magnet steel 4, because pole piece 5 is to be fixedly connected with sound film 6 , so sound film 6 also can and then vibrate, the vibration of sound film 6 generates sound, and sound passes through the compression of phase plug 8 and aditus laryngis 12, in Sound is amplified inside cylinder 10, according to the principle of foldover design, the bottom end of sound therefrom cylinder 10 is come out, and is passing through outer big cylinder 1 by acoustic radiating into air.

It, can be so as in conclusion by the way that the bottom interior wall for the middle cylinder 10 for being located at the top of upper cover 9 is arranged to protrude corrugated In the compressed sound of aditus laryngis 12, conducted along upper cover 9 and the gap location of middle cylinder 10, and according to the original of foldover design The bottom end of reason, sound therefrom cylinder 10 comes out, then by outer big cylinder 1 by acoustic radiating into air, it is possible to realize output sound The effect that pressure is high and sound directivity is strong, practicability is stronger, the narrowband highly directive high sound pressure alarm speaker, small in size Light-weight, structure is simple, and manufacturing cost is low, and practicability is stronger.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of narrowband highly directive high sound pressure alarm speaker, including outer big cylinder (1), pedestal cooling fin (2), U-shaped yoke (3), magnet steel (4), pole piece (5), sound film (6), sound pad (7), phase plug (8), upper cover (9), middle cylinder (10) and u-bracket (11) It is characterized by: the bottom interior wall of the outer big cylinder (1) is fixed with U-shaped yoke (3), U-shaped yoke (3) are internally provided with Magnet steel (4) is provided with pole piece (5) above the U-shaped yoke (3), is fixed with sound film (6) at the top of the pole piece (5), described The bottom of sound film (6) is fixed with sound pad (7), is fixedly connected at the top of the bottom and U-shaped yoke (3) of the sound pad (7), the sound It is equipped at the top of film (6) phase plug (8), is provided with upper cover (9) at the top of the phase plug (8), the bottom of the upper cover (9) It is fixedly connected with the bottom interior wall of outer big cylinder (1), is provided with middle cylinder (10) at the top of the upper cover (9), the middle cylinder (10) Bottom is fixedly connected with the bottom interior wall of outer big cylinder (1).

2. a kind of narrowband highly directive high sound pressure alarm speaker according to claim 1, it is characterised in that: described outer big The two sidewalls of cylinder (1), which pass through, is connected with u-bracket (11) in pin rotation.

3. a kind of narrowband highly directive high sound pressure alarm speaker according to claim 1, it is characterised in that: described outer big The bottom of cylinder (1) is fixed with pedestal cooling fin (2), and the material of pedestal cooling fin (2) is aluminium.

4. a kind of narrowband highly directive high sound pressure alarm speaker according to claim 1, it is characterised in that: described U-shaped Yoke (3) is bowl-shape to put down, and U-shaped yoke (3) is internally provided with and magnet steel (4) compatible cavity.

5. a kind of narrowband highly directive high sound pressure alarm speaker according to claim 1, it is characterised in that: the upper cover (9) it is offered at the top of aditus laryngis (12), is provided with gap between the upper cover (9) and middle cylinder (10).

6. a kind of narrowband highly directive high sound pressure alarm speaker according to claim 1, it is characterised in that: the middle cylinder (10) bottom interior wall is protrusion corrugated, and has equidistant interval to be provided with radiant panel at the top of middle cylinder (10).

7. a kind of narrowband highly directive high sound pressure alarm speaker according to claim 1, it is characterised in that: the upper cover (9) it is housing shape, and is internally provided with the compatible cavity with sound film (6).