CN201435812Y

CN201435812Y - Omnibearing spiral sound track loudspeaker

Info

Publication number: CN201435812Y
Application number: CN200920122632XU
Authority: CN
Inventors: 陈权江
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-12
Filing date: 2009-06-12
Publication date: 2010-03-31
Anticipated expiration: 2019-06-12

Abstract

The utility model relates to an omnibearing spiral sound track loudspeaker, comprising an upper shell and a lower shell, opposite evolvent spiral grooves are arranged in the upper shell and the lowershell to form a spiral sound track, and a tone generator is arranged at the inlet position of the spiral sound track; the omnibearing spiral sound track loudspeaker is characterized in that: three groups of the spiral sound tracks are arranged, and the outlets of the spiral sound tracks are uniformly arrayed circularly along different directions; the omnibearing spiral sound track loudspeaker hasthe beneficial effects that: at least three groups of the spiral sound tracks are combined together, and the outlets of the spiral sound tracks is toward to different directions, so as to realize omnibearing sound conduction of the loudspeaker; by adopting the structure, the installation and debugging of the loudspeaker is convenient, the working efficiency of the installation is improved and thewhole operating cost is reduced.

Description

A kind of comprehensive helical form channel loudspeaker

Technical field

The utility model relates to a kind of loud speaker, relates to a kind of comprehensive helical form channel loudspeaker in particular.

Background technology

At present, the helical form channel loudspeaker mostly is unidirectional acoustic greatly on the market, promptly carry out sound transmission towards assigned direction, adopt this mode, can't satisfy the demand of some specific occasions, such as, urban air defense, gymnasium, large-scale square, bus hub etc., because this type of place has relatively high expectations to the acoustic pressure of loud speaker, and be necessary for comprehensive acoustic and can not have the blind area; For reaching comprehensive acoustic effect, each particular place has only one way or another as much as possible that one loud speaker respectively is installed, and one way or another is all installed loud speaker, and its cost is higher relatively, and when installing than more complicated, thereby directly improved the overall cost of operation of each particular place loud speaker.

Summary of the invention

Can't realize comprehensive acoustic in order to solve existing helical form channel loudspeaker, the utility model provides a kind of comprehensive helical form channel loudspeaker, and it is simple in structure, and is quick and easy for installation, can effectively realize comprehensive acoustic.

For solving above technical problem, the technical scheme that the utility model is taked is a kind of comprehensive helical form channel loudspeaker, it includes upper shell and lower house, be provided with relative involute helicla flute in the described upper and lower casing, described involute helicla flute constitutes the helical form sound channel, and the import department of this helical form sound channel is equipped with acoustic generator; It is characterized in that described helical form sound channel is provided with three groups and its outlet at least and is circumference uniform distribution along different directions and arranges.

Further, the described upper shell of respectively organizing the helical form sound channel is the integral type disc structure, and respectively organize lower house corresponding with it is similarly the integral type disc structure.

Further, the described upper shell of respectively organizing the helical form sound channel is separate and be spliced into discoidly, is spliced into discoid equally with each this corresponding lower house of independent upper casing.

Further, the described independent upper shell of respectively organizing the helical form sound channel be fixed on the upper mounting plate constitute described discoid, with the corresponding lower house of each independent upper shell be fixed on constitute on the lower installation board one described discoid.

Further, described each independently be equipped with installation foot in the outside of upper and lower casing with screwed hole, described installation foot is fastenedly connected with corresponding upper and lower mounting panel by screw.

Further, described helical form sound channel is provided with four groups.

Further, described each independent upper shell is provided with sound inlet, and this sound inlet one end communicates with involute spiral fluted basic circle, and the other end of described acoustic generator and sound inlet interlinks.

Further, be provided with a dividing plate between the described adjacent helical form sound channel, this dividing plate is connected to two adjacent respectively organizing between the helical form sound channel.

Further, the both sides of described four groups of helical form sound channels respectively are provided with a cover plate, and this cover plate lid is put at the edge of four groups of helical form sound channels and with it and fixedlyed connected.

Further, described cover plate below is provided with a support, and described support is fixedlyed connected with cover plate.

The beneficial effects of the utility model are with at least three group helical form channel combinations together, and with the outlet of different helical form sound channels towards different directions, just can realize the comprehensive acoustic of loud speaker, adopt this structure, can greatly facilitate the installation and debugging of loud speaker, improve the working efficiency when installing, reduce whole operation cost.

Description of drawings

Fig. 1 is the sectional structure chart of a kind of comprehensive helical form channel loudspeaker of the utility model embodiment

Fig. 2 is the three-dimensional reference diagram of a kind of comprehensive helical form channel loudspeaker of the utility model embodiment

Fig. 3 is an A--A place cutaway view among Fig. 1

Fig. 4 is a B--B place cutaway view among Fig. 1

Fig. 5 is the three-dimensional reference diagram of single group helical form sound channel among the utility model embodiment

Fig. 6 is the three-dimensional reference diagram of upper shell among the utility model embodiment

Fig. 7 is the three-dimensional reference diagram of lower house among the utility model embodiment

Fig. 8 is the explosive view of a kind of comprehensive helical form channel loudspeaker of the utility model embodiment

Specific embodiments

Below in conjunction with accompanying drawing the utility model execution mode is described further:

Extremely shown in Figure 8 as Fig. 1, a kind of comprehensive helical form channel loudspeaker of the utility model, it includes upper shell 11 and lower house 12, on described, lower house 11, be provided with relative involute helicla flute 111 in 12,121, described involute helicla flute 111,121 constitute helical form sound channel 1, the import department of this helical form sound channel 1 is equipped with acoustic generator 2, can't realize comprehensive acoustic in order to solve existing helical form channel loudspeaker, described helical form sound channel 1 is provided with three groups and its outlet at least and is circumference uniform distribution along different directions and arranges, at least three group helical form sound channels 1 are combined, and with the outlet of different helical form sound channels 1 towards different directions, just can realize the comprehensive acoustic of loud speaker, adopt this structure, can greatly facilitate the installation and debugging of loud speaker, improve the working efficiency when installing, reduce whole operation cost.

In the present embodiment, be processing and the assembling that makes things convenient for helical form sound channel 1, the described upper shell 11 of respectively organizing helical form sound channel 1 is the integral type disc structure, respectively organize lower house 12 corresponding with it is similarly the integral type disc structure, the upper shell 11 and the lower house 12 of each group helical form sound channel 1 are made as one, the processing and the assembling of upper and

lower casing

11,12 can be greatly facilitated, and the working efficiency when processing can be effectively improved with assembling; But because integral structure is subjected to the restriction of apparatus processing condition easily, such as the size of organizing helical form sound channel 1 when big more, each upper shell 11 of organizing helical form sound channel 1 and lower house 12 can't once-formings, then must adopt separate split-type structural, the upper shell of respectively organizing helical form sound channel 1 11 as described is separate and be spliced into discoid, be spliced into discoid equally with each independent upper shell 11 corresponding lower house 12, adopt this separate split-type structural, can make things convenient for the processing and the assembling of helical form sound channel 1 equally, because the loud speaker overall dimension of present embodiment is bigger, therefore, adopting separate split-type structural is the preferred implementation of the utility model embodiment.

In the present embodiment, for making things convenient for each separate upper shell 11 and lower house 12 to be spliced into discoid, the described independent upper shell 11 of respectively organizing helical form sound channel 1 be fixed on the upper mounting plate 3 constitute described discoid, with described each independent upper shell 11 corresponding lower house 12 be fixed on the lower installation board 4 constitute one described discoid, add,

lower installation board

3,4, not only can make things convenient on each,

lower house

11,12 splicing, simultaneously, also can solve because of the size of helical form sound channel 1 bigger, upper shell 11 and lower house 12 can't once-forming technical problem, secondly, adopt this structure, make upper shell 11 and the lower house 12 of respectively organizing helical form sound channel 1 that also can be indirect be integral structure, and therefore, the execution mode of present embodiment is a preferred implementation.

In the present embodiment, working efficiency during for ease of assembly helical form sound channel 1 and raising assembling, described each independently go up,

lower house

11,12 the outside is equipped with the installation foot 13 with screwed hole, described installation foot 12 by screw with corresponding on,

lower installation board

3,4 are fastenedly connected, can be by installation foot 13 fast with in each split,

lower house

11,12 are combined in, lower installation board 3, on 4 and form integral structure, so just, can assemble helical form sound channel 1 fast, and the working efficiency when effectively improving helical form sound channel 1 assembling, certainly, also can not adopt screw fixation method, such as adopt the buckle connected mode, can reach identical purpose equally, but owing to adopt screw fixation method, its mechanical strength is higher, therefore, the execution mode of present embodiment is a preferred implementation.

In the present embodiment, for guaranteeing the comprehensive acoustic effect of loud speaker, described helical form sound channel 1 is provided with four groups, this four groups of helical form sound channels, 1 outlet is respectively towards different directions, adopt four groups of helical form sound channels 1 can farthest guarantee omnibearing acoustic effect, reduce the sound blind area, therefore, the execution mode of present embodiment is a preferred implementation.

In the present embodiment, be installation that makes things convenient for acoustic generator 2 and the acoustic pressure that makes things convenient for control loudspeaker, described each independent upper shell 11 is provided with sound inlet 14, these sound inlet 14 1 ends communicate with the basic circle of involute helicla flute 111, described acoustic generator 2 interlinks with the other end of sound inlet 14, the installation that one sound inlet 14 can greatly facilitate acoustic generator 2 is set, improves the working efficiency when installing; Certainly, acoustic generator 2 also can be installed on the lower house 12 or on the upper and

lower casing

11,12 acoustic generator 2 is installed simultaneously, concrete which kind of mode that adopts, can decide according to actual conditions, as being had relatively high expectations, the loud speaker acoustic pressure just can on upper and

lower casing

11,12, acoustic generator 2 be installed all, because present embodiment is less demanding to acoustic pressure, therefore, acoustic generator 2 communicates with the sound inlet 14 of upper shell 11 and is linked as the preferred implementation of present embodiment.

In the present embodiment, for increasing the visual sense of beauty of loud speaker, be provided with a dividing plate 15 between the described adjacent helical form sound channel 1, this dividing plate 15 is connected to two adjacent respectively organizing between the helical form sound channel 1, one dividing plate 15 is set, can on dividing plate 15, paste ornaments such as reflective sheeting, can greatly improve the overall appearance of loud speaker like this, increase visual sense of beauty; Certainly, also can not establish dividing plate 15, but owing to do not establish dividing plate 15, can't add ornament, make loud speaker seem too dull, therefore, the execution mode of present embodiment is a preferred implementation.

In the present embodiment; the corrosion of avoiding exterior materials for the overall appearance and the protection acoustic generator 2 of increase loud speaker guarantees its useful life; the both sides of described four groups of helical form sound channels 1 respectively are provided with a cover plate 5; these cover plate 5 lids are put at the edge of four groups of helical form sound channels 1 and with it and are fixedlyed connected; by being set, a cover plate 5 not only can increase the overall appearance of loud speaker; simultaneously, also can avoid acoustic generator 2 to be exposed to the corrosion that exterior materials is avoided in the outside, thereby can effectively guarantee sonorific useful life.

In the present embodiment, for the installation that makes things convenient for loud speaker with move, flexibility when improving the loud speaker use, described cover plate 5 belows are provided with a support 6, described support 6 is fixedlyed connected with cover plate 5, by this support 6, loud speaker can be installed or is displaced into the optional position of field of employment arbitrarily, the flexibility when can greatly improve the loud speaker use like this.

The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.

Claims

1. comprehensive helical form channel loudspeaker, it includes upper shell and lower house, be provided with relative involute helicla flute in the described upper and lower casing, described involute helicla flute constitutes the helical form sound channel, and the import department of this helical form sound channel is equipped with acoustic generator; It is characterized in that described helical form sound channel is provided with three groups and its outlet at least and is circumference uniform distribution along different directions and arranges.

2. a kind of comprehensive helical form channel loudspeaker according to claim 1 is characterized in that the described upper shell of respectively organizing the helical form sound channel is the integral type disc structure, and respectively organize lower house corresponding with it is similarly the integral type disc structure.

3. a kind of comprehensive helical form channel loudspeaker according to claim 1 is characterized in that the described upper shell of respectively organizing the helical form sound channel is separate and it is discoid to be spliced into, and is spliced into discoid equally with each this corresponding lower house of independent upper casing.

4. a kind of comprehensive helical form channel loudspeaker according to claim 3, it is characterized in that the described independent upper shell of respectively organizing the helical form sound channel be fixed on the upper mounting plate constitute described discoid, with the corresponding lower house of each independent upper shell be fixed on constitute on the lower installation board one described discoid.

5. a kind of comprehensive helical form channel loudspeaker according to claim 4, it is characterized in that described each independently be equipped with installation foot in the outside of upper and lower casing with screwed hole, described installation foot is fastenedly connected with corresponding upper and lower mounting panel by screw.

6. according to claim 1,2,3,4 or 5 described a kind of comprehensive helical form channel loudspeakers, it is characterized in that described helical form sound channel is provided with four groups.

7. a kind of comprehensive helical form channel loudspeaker according to claim 6, it is characterized in that described each independent upper shell is provided with sound inlet, this sound inlet one end communicates with involute spiral fluted basic circle, and the other end of described acoustic generator and sound inlet interlinks.

8. according to claim 3 or 4 or 5 described a kind of comprehensive helical form channel loudspeakers, it is characterized in that being provided with a dividing plate between the described adjacent helical form sound channel, this dividing plate is connected to two adjacent respectively organizing between the helical form sound channel.

9. a kind of comprehensive helical form channel loudspeaker according to claim 8 is characterized in that the both sides of described four groups of helical form sound channels respectively are provided with a cover plate, and this cover plate lid is put at the edge of four groups of helical form sound channels and with it and fixedlyed connected.

10. a kind of comprehensive helical form channel loudspeaker according to claim 9 is characterized in that described cover plate below is provided with a support, and described support is fixedlyed connected with cover plate.