CN1802035A

CN1802035A - Loudspeaker

Info

Publication number: CN1802035A
Application number: CN 200610000308
Authority: CN
Inventors: 菲利普·杰弗里·安东尼; 斯蒂芬·约翰·哈尔索尔
Original assignee: GP Acoustics UK Ltd
Current assignee: GP Acoustics UK Ltd
Priority date: 2005-01-05
Filing date: 2006-01-04
Publication date: 2006-07-12
Also published as: GB2422066A; GB2422066B; GB0500075D0

Abstract

The loudspeaker consists of an enclosure 1 with drive units 14 and a stand 2. The enclosure has an opening 16 in its base which can be closed by a base 50 (figure 5). The enclosure can then be used as a bookshelf speaker. Alternatively, the enclosure can be used on the stand which has an open top and contains a port tube 34 which acts as a Helmholtz resonator when the enclosure 1 is placed on the stand. Audio performance is thus enhanced.

Description

Loud speaker

Technical field

The present invention relates to loud speaker.

Background technology

The invention particularly relates to the improvement of less relatively loudspeaker audio performance, this loud speaker is commonly called " bookshelf " loud speaker, and it can be placed on shelf or the similar supporter or can be installed in and rest usually on the ground support.

Summary of the invention

The invention provides the assembly of loudspeaker enclosure, this assembly comprises wall device, and this wall device defines the casing of sealing basically, the closure that this casing has opening and is used to cut out this opening in its underpart;

And

Support, have on this support top and to be used to hold loudspeaker enclosure and to come the device that provides support for it, this support comprises at least one port tube and has opening, the location of this opening allow when casing during by stent support air between casing and port tube, interact, this port tube has outlet, and this outlet is opened wide by the housing of support.

The loudspeaker enclosure of this assembly can be separated use from support, and the configuration closure is to close opening, and this loudspeaker enclosure defines the casing of sealing basically thus.Such casing can be installed in, for example, and on the support of shelf or any adequate types.

Yet preferably this casing is to be supported on the support of the assembly of removing closure.By this way, this port tube plays helmholtz resonator (Helmholtz resonator) and is used to improve the audio performance of loudspeaker drive unit.

Compatibly, the opening in wall device is at its bottom surface portions, and the opening in support is at its summit portion.

Preferably, port tube has import, and the opening on this import and the support is on the plane.

This provides between casing and port tube especially effectively and has connected.

Suitably, support comprises housing, and port tube is arranged in this housing.

Advantageously, this housing is the form of stand pipe, and port tube vertically extends basically therein.

Preferably, this closure comprises and is used to support the base of separating the casing of use from this support.

Advantageously, this casing has first Electical connector, the position of this first Electical connector is configured such that it can electrically contact with second, third Electical connector that lays respectively on this support and the base alternatively, when being installed in this casing on support and the base respectively, this Electical connector is arranged to provide audio signal for the driver element of this casing.

Aptly, this second and the 3rd Electical connector is placed in the upper end of corresponding cable tube, and when this cable tube was installed on support and the base respectively, it extended upward to be positioned the rear portion of casing from this support and base respectively.

Description of drawings

To and describe of the present invention concrete with reference to the accompanying drawing of this specification by example now

Embodiment, in the accompanying drawings:

Fig. 1 is the front perspective view of loudspeaker assembly, and it is separated from one another to show its casing and support.

Fig. 2 is the rear view of the loudspeaker assembly shown in Fig. 1, shows that casing is supported on the support.

Fig. 3 is the bottom perspective view of this assembly among Fig. 2.

Fig. 4 is the profile along IV-IV line among Fig. 2;

Fig. 5 is the rear view of the casing of this loudspeaker assembly, illustrates with base, and it separates with base portion.

Embodiment

Loudspeaker assembly shown in the accompanying drawing is made up of loudspeaker enclosure 1 and support 2.

Casing 1 has sidewall 10 and roof 12.This sidewall has such shape, so that except flat forward part 11, the cross section of this casing is oval-shaped.Roof 12 is oval-shaped in the plane, thereby gives prominence on flat forward part 11.Flat front wall section 11 has the hole of 5 circles, and each pore volume is received a loudspeaker drive unit 14.These driver elements 14 can have traditional structure, and its arrangement makes each driver element can handle a band frequency in soundscape usually.Alternatively, can have only a driver element, or different separately frequency ranges is handled in any other requisite number purpose unit.Casing 1 is to be made by aluminium alloy in this specific embodiment.Other suitable materials comprise plastic material and MDF.The shape of this case is unimportant for its function: the box of replaceable use straight line.

Casing 1 opens wide in the bottom, therefore should bottom formation opening 16.Containment member 39 is positioned at the lower end of sidewall 10.Separate with casing 1 at the sealing member shown in Fig. 1.It is made up of upper and

lower steel plate

40,41, and the sealing gasket 42 of compressible closed-cell foam material is arranged between this steel

plate.Steel plate

40,41 and sealing gasket 42 have the perforation 43 of likeness in form " numeral 8 ".Containment member 39 is placed in the casing 1, at first by being connected to the inner surface of sidewall 10 with adhesive, secondly passing the interior hole of each comfortable sealing member and be contained in the interior (not shown) of threaded socket (sockets) in the corresponding projection that forms on the inside of sidewall 10 with pair of screws 38 at its periphery.

Support 2 has circular base 30 and has the setting tubular shell 32 in oval cross section, is also made by aluminium alloy.Base 30 has a pair of groove 31 in its bottom surface, this groove holds respectively and is used for the terminal 33 that is connected with amplifier or other suitable electric signal sources.Terminal 33 is connected with other cable itself, this cable passes through in pipe 44, pipe 44 rear portion from support 2 and casing 1 in groove 46 upwards extends perpendicularly to pin connector 48, and this pin connector is contained in the input socket 45 of the upper end that is positioned at wall box 10 rear portions.Input socket 45 is connected to driver element 14 by internal wiring, by suitable frequency dividing circuit the signal of telecommunication is divided into frequency band to be suitable for single driver element.

The housing 32 of support 2 comprises port tube 34, and this port tube and housing 32 forms whole and vertical extent therein.As shown in Figure 4, port tube 34 has such cross section: three limits are almost rectangular, and along the 4th spring song.The upper end of pipe 34 is openings, and is positioned at same plane with the upper open end of cylindrical housings 32.Connector 46 is shaped as plastic, is connected to the upper end of housing 32.Connector 46 has opening, and this opening forms sealing around the upper periphery of port tube 34, thereby port tube inside is being opened wide by connector 46.Connector 46 has the lower end that is used for releasably casing 1 and is fixed to device on the support 2, and has the upright annular wall that its shape is fit to casing 1 lower end.This wall edge thereon has the sealing gasket (not shown) of compressible closed-cell foam material, and configuration sealing liner is so that provide hermetic closed with the bottom of the lower shoe 41 of containment member 39.Hermetic closed between casing 1 and the support 2 just formed like this.

Housing 32 has first and second openings 36 within it, and this opening has formed the outlet of port tube 34.The combined area of opening 36 is basic identical with the cross-sectional area of port tube 34.Select the position of opening 36 and can make it play helmholtz resonator, have the low frequency output that selected frequency increases driver element 14 so that manage 34 effective length.The bottom of the port tube 34 below delivery outlet 36 has the stopper 47 that is formed by foamed sound-absorbing material.

Loudspeaker enclosure 1 can be used as traditional " bookshelf " loud speaker and is used alone.For this purpose, provide the cable tube 52 that is shown in the base 50 among Fig. 5 and lacks with casing 1.Base 50 has the electric terminal 54 that is used to connect amplifier or other signal sources.Pipe 52 accommodates the cable (not shown), and this cable extends at the connector 56 of managing 52 upper ends from terminal 54.Configuration connector 56 is so that it is contained in the input socket 45 that is positioned at wall box 10 rear portions.

Base 50 also has closure member 58, this closure member has upright annular wall 59 (corresponding to the upstanding wall of connector 46), determine this annular wall shape so that its be contained in the lower end of the wide wall 10 of casing, and hermetic closed with above-mentioned containment member 39 formation, the sealing member is positioned at the lower end of sidewall 10.Base 50 is fixed on the casing 1 by screw 60, and screw 60 passes the hole 62 in the base 50 and is contained in the threaded socket 64 that is arranged in upper steel plate 40, and sealing gasket 42 and lower plate 41 have screw 60 respectively and pass wherein hole.The sealing gasket (not shown) of compressible closed-cell materials is installed in the top edge of wall 59, and corresponding to the sealing gasket of connector.The sealing gasket of tightening between 60 pairs of walls 59 of screw and the plate 41 produces pressuring action, thereby guarantees hermetic closed between base 50 and the casing 1.Note that the lowermost portion of wall box 10 has the structure that engages with the upstanding part-annular wall 59 of base 50.

Terminal 54 can be connected to signal source and employed loud speaker now.

In the time casing need being placed on the support 2 and obtaining the advantage of port tube 34, base 50 and cable tube 52 are removed, and casing 1 is placed in the upper end of the housing 32 of support 2, and the fixture on the connector 46 is used for casing 1 releasably is connected to support 2.Terminal 33 is connected on the signal source.On this position, the inside of this casing is communicated with pipe 34, and this has managed the effect of helmholtz resonator, and the sound equipment that this casing is produced is enhanced.

Claims

1. a loudspeaker enclosure assembly comprises wall device, and described wall device defines the casing of sealing basically and has at least one driver element, the closure that described casing has opening and is used for cutting out described opening in its underpart within it;

And

Support, have on described support top and to be used to hold described loudspeaker enclosure and to come the device that provides support for it, described support comprises at least one port tube and has opening, when described casing the time by described stent support, the location of described opening allows the interaction of air between described casing and the described port tube, described port tube has outlet, and described outlet is opened wide by the housing of described support.

2. loudspeaker assembly according to claim 1, wherein the opening in described wall device is in its bottom surface portions, and the opening in described support is in its summit portion.

3. according to each described loudspeaker assembly in the aforementioned claim, wherein said port tube has import, and the opening of described import and described support is coplanar.

4. according to each described loudspeaker assembly in the aforementioned claim, wherein said support comprises that described port tube is placed in housing wherein.

5. loudspeaker assembly according to claim 4, wherein said housing are the shape of stand pipe, and described therein port tube extends substantially vertically.

6. according to each described loudspeaker assembly in the aforementioned claim, wherein said closure comprises and is used to support the base of separating the described casing of use from described support.

7. loudspeaker assembly according to claim 6, wherein said casing has first Electical connector, the position of described first Electical connector is configured such that it can electrically contact with the second and the 3rd Electical connector that lays respectively on described support and the base alternatively, when being installed in described casing on described support and the base respectively, described Electical connector is arranged to provide audio signal for the driver element of described casing.

8. loudspeaker assembly according to claim 7, the wherein said second and the 3rd Electical connector is placed in the upper end of corresponding cable tube, when described cable tube was installed on described support and the base respectively, it extended upward to be positioned the rear portion of described casing from described support and base respectively.