CN101193453B - Loudspeaker device - Google Patents

Abstract

The invention relates to a loudspeaker device such as a loudspeaker device in a television. The device includes a case (1) and at least a sound box with the loudspeaker (2). The sound box with the loudspeaker (2) is connected with the case (1) through a connection device and an elastic device. The sound box with the loudspeaker (2) is mounted on the elastic device and the sound box with the loudspeaker (2) is suspended by the elastic device which is connected with the case (1) through the connection device.

Description

speaker device

technical field

The present invention relates to a loudspeaker device, for example a loudspeaker device for a television. Loudspeaker units have at least one loudspeaker enclosure, which are used in televisions, television sets or portable television sets, and computer sets.

Background technique

A loudspeaker device for a television receiver is described in the abstract of Japanese Patent JP2003-134421A. The television receiver includes a cabinet and a speaker enclosure, referred to herein as a speaker. In order to prevent the vibration from the loudspeaker to the chassis, special connecting devices and elastic devices are applied. The connection device includes a loudspeaker positioning part for positioning the loudspeaker, and meanwhile, there are a plurality of protruding parts near the loudspeaker positioning part on the cabinet. The elastic means has at least one fastening section with holes at its ends and hooked onto the protruding part of the connecting means. This clip secures the speaker by squeezing it from the rear of the chassis.

The abstract of Japanese Patent JP08116582A describes a loudspeaker fixing structure, which squeezes the loudspeaker unit to the side wall through an additional shrapnel.

By squeezing the speakers against the cabinet, a certain amount of speaker vibration is still transferred to the cabinet. A solution to prevent vibration from being transmitted from the speaker cabinet to the chassis is mentioned in the abstract of Japanese Patent JP2002-252892A, which provides a buffer device between the speaker cabinet and the cabinet.

In patent WO9522015A a vibration damping device is described which includes damping discs capable of dissipating vibrational energy as heat.

In the above solutions, besides the connecting device, additional devices are required, such as shrapnel, buffer device and damping device.

In the abstract of Japanese patent JP2003-153127A a connecting device as a loudspeaker holder is indicated. This speaker holder has a support portion with an elastic portion for tightly covering a part of the speaker or the entire speaker except the sound emitting portion. This elastic section needs to be quite long to wrap around the speaker. Also, the elastic part covering the speaker creates an acoustic cavity with standing waves. As a result, this cavity will vibrate with air transmission, which transmits the vibrations to the chassis. At the same time, this cavity also reduces the acoustic performance.

Contents of the invention

Therefore, it is necessary to improve a speaker device, such as a TV speaker device, whose connection is to have at least one speaker box on the cabinet. The vibrations transmitted by the speaker cabinets are completely damped.

The speaker device of the present invention, for example a speaker device of a TV, comprises a cabinet and at least one speaker cabinet, the speaker cabinet is connected to the cabinet through the connecting device and the elastic device. According to the invention, the speaker box is suspended by means of elastic means which suspend the speaker box and which itself is connected to the cabinet by connecting means. The elastic device includes one or more elastic elements, one end of which is connected to the speaker box and the other end is connected to the connecting device, so that the weight of the speaker box is borne by the elastic element and elastically transmitted to the connecting device. In this way, the loudspeaker box is suspended and hung in the cabinet by the elastic device.

The speaker cabinet is suspended by the elastic device and does not transmit any vibrations to the cabinet. Vibrations transmitted by the speaker cabinets are completely blocked.

The elastic means has at least one elastic band which wraps around at least one element of the speaker enclosure and is connected to the connecting means. The elastic band is now tensioned by the connecting device. As a result, the speaker enclosure is suspended by the elastic bands to the attachment and floats in the enclosure.

In one embodiment of the invention, a single elastic band suspends the speaker enclosure by surrounding it, the elastic band is tensioned and connected to the cabinet by the connecting means.

As another optional solution, the elastic means may include an inner elastic band to suspend the speaker box by surrounding it, while an outer elastic band is connected to the inner elastic band and connected to the cabinet after being stretched by the connecting means.

The connection device includes a tension element, which protrudes from the surface of the case, and is used to tighten the elastic device. They are formed by protruding rods. Furthermore, the connecting means comprise supporting elements supporting elastic means, for example spacer means guiding elastic bands on the tensioning elements. The supporting element provides the positioning of the connecting means by the elastic means without hindering the suspension of the loudspeaker enclosure.

The single elastic band or the outer elastic band comprises at least one guide element, while the connection means comprises at least one guide rail element protruding from the side wall and corresponding to the guide element. The guide element is formed by adding loop holes to the corresponding elastic band, and the guide rail element is a protruding cross bar. Guide and rail elements keep the loudspeaker enclosure safe during transport.

Elastic means, such as elastic bands, can be made of elastic soft rubber bands. In particular, the elastic means, such as the outer elastic band or the outer and inner elastic bands, can be injection molded in one elastomeric unit.

The speaker enclosure includes a circumferential groove that guides the surrounding elastic band.

Description of drawings

Further description of the present invention will be illustrated by three specific embodiments, as shown in FIGS. 1 to 8 .

Figure 1, a simplified perspective view of a single elastic band of a loudspeaker device in a first embodiment;

Figure 2. A simplified perspective view of a speaker enclosure showing the front of the speaker enclosure;

Fig. 3 is a simplified exploded view of the single elastic band and the speaker box in the cabinet in the first embodiment;

Fig. 4, the perspective view of the suspension of the loudspeaker box in the first embodiment;

Figure 5, a simplified perspective view of a single elastic band of a loudspeaker device in a second embodiment;

Fig. 6 is a simplified exploded view of the single elastic band and the loudspeaker enclosure in the second embodiment;

Fig. 7, the perspective view of the suspension of the loudspeaker box in the second embodiment;

Figure 8. Simplified perspective view of a single elastic band of a loudspeaker device in a third embodiment.

Detailed ways

Detailed description of the first embodiment of the present invention

The speaker device referred to in the first embodiment of the present invention, such as a TV speaker device, includes a cabinet 1 and at least one speaker cabinet 2, and the speaker cabinet 2 is connected to the cabinet 1 through a connecting device and an elastic device.

According to the invention, the loudspeaker enclosure is suspended by means of a single elastic band 3 of the elastic means.

The loudspeaker box 2 is shaped as a slightly elongated cube, and it has a front cover 4 and a rear cover 5, both of which are rectangular. In addition, there are four side covers 6 between the front and rear covers. Two elliptical speaker openings 2 a are arranged laterally side by side on the front cover 4 . Both the front cover 4 and the rear cover 5 protrude from the side cover 6 so that a circumferential groove 7 is produced on the loudspeaker enclosure 2 . There is an opening 1a on the cabinet 1, and this opening 1a corresponds to the opening 2a on the speaker box. The elastic band 3 is an endless band, and its width coincides with the width of the groove 7, that is, this width is the distance between the front cover 4 and the rear cover 5 in this embodiment. The elastic means 3 surround the loudspeaker enclosure 2 and are guided by the groove 7 .

The length of the elastic band 3 is longer than the circumference of the groove 7, so that the elastic band 3 can be tightened by the connecting means.

The elastic band 3 is tensioned by the fastening elements of the connecting element, which are two protruding rods 8 protruding from the cabinet 1 .

The protruding rod 8 is located on the side of the speaker box 2 and between the speaker box 2 and the elastic band 3 . The protruding rod 8 has a spacer 8a at one end of the cabinet 1 to ensure a proper distance between the cabinet 1 and the elastic band 3 of the speaker box 2 . This distance is greater than the thickness of the front case 4 .

The distance between the two protruding rods 8 is slightly larger than the lateral width of the speaker box 2 . With regard to the elastic band 3, this distance is large enough that the elastic band 3 around the loudspeaker enclosure 2 is tensioned. At the same time, the elastic band 3 is connected to the chassis 1 through the protruding rod 8 . The elastic band 3 is made of elastic soft rubber band. It can be made into an elastomeric unit by injection moulding.

The elastic band 3 is adapted to the loudspeaker enclosure 2 and has two parallel surfaces 9 which surround the long sides of the loudspeaker enclosure 2 and two angled surfaces 10 which are both located in the area of the protruding rod 8 . The parallel face 9 is connected to the angled face 10 via an edge 11 . Each angled face 10 is connected by an edge 12, whereby the lug 8 can be better positioned. This can be seen in Figure 1. The angle on both sides of the inclined surface 10 may be between 120 degrees and 60 degrees, such as 90 degrees.

Therefore, the elastic band 3 is tightened, and the speaker box 2 is suspended in the cabinet 1 . The opening 2 a of the speaker cabinet 2 is positioned corresponding to the opening 1 a of the cabinet 1 .

As an alternative, the recess 7 of the loudspeaker enclosure 2 can be formed by the side cover 6 itself.

Detailed description of the second embodiment of the present invention

In the second embodiment of the loudspeaker device of the present invention, almost all of its features coincide with those of the first embodiment, except for the following:

The single elastic band 3 comprises stabilizing elements 13 , 14 , 15 which are all additional parts of the elastic band 3 . In the area of each angled face 10 there are stabilizing elements 13 creating an inner surface which interconnects two parallel surfaces 9 and forms a rectangle. The above-mentioned inner surface is also guided by the groove 7 on the loudspeaker enclosure 2 . The other stabilizing element 14 forms a cylindrical surface at the edge 12 which surrounds the corresponding projection 8 . The third stabilizing element 15 forms a surface parallel to the surface 9 and connected to the other two stabilizing elements 14, 13, with an inner surface in the middle of the cylindrical surface.

The connection means comprise support elements, ie two support spacers 16 . The support sleeve 16 is intended for the tensioning element, ie the protruding rod 8 . In particular, they form a cylindrical surface between the protruding rod 8 and the stabilizing element 14 . Each supporting sleeve 16 has a circumferential groove 17 , two ends of which form two collars 18 , and the groove 17 guides the elastic band 3 through the inner cylindrical surface of the stabilizing element 14 . The connecting device also includes two screws 19 to fix the support sleeve 16 on the protruding rod 8, the threads of which are compatible. This can be seen in Figures 5 and 6.

The single elastic belt 3 includes four guide elements 20 , the connecting device includes four guide elements 21 , and the guide elements 21 protrude from the chassis 1 and correspond to the guide elements 20 . Both guide elements and guide elements are located on the outside of the parallel face 9 of the elastic band 3 . The guide element 20 is part of the elastic band 3 , for example forming a loop on the elastic band 3 . The guide element 20 produces a cylindrical surface. The guide element 21 is a U-shaped protruding strip for guiding the guide element 20 . This can be seen in Figure 7.

Detailed description of the third embodiment of the present invention

In the third embodiment of the loudspeaker device of the present invention, almost all of its features coincide with those of the first embodiment, except for the following:

The elastic means comprise an inner elastic band 22 and an outer elastic band 23 . The inner elastic band 22 suspends the speaker enclosure 2 by completely surrounding it. The shape of the inner elastic band 22 is rectangular and coincides with the shape of the speaker box 2 , and is guided through the groove 7 on the speaker box 2 . The outer elastic band 23 is connected with the inner elastic band 22 and connected to the chassis 1 by the connecting device. The outer elastic band 23 surrounds the inner elastic band 22 with a fixed interval therebetween. It is connected to the inner elastic band by means of elastic elements 24 , which are elastic segments with slopes between the elastic bands 22 and 23 . There are 16 elastic elements 24 between the elastic bands 22 and 23 . Furthermore, a stabilizing element 25 is located in the middle of the lateral edges of the outer elastic band 23, which corresponds to the stabilizing element 4 and has a cylindrical surface. This can be seen in Figure 8.

Not shown in FIG. 8 , the stabilizing element 25 surrounds the lug 8 and is guided by the groove 17 . The outer elastic belt 23 is tensioned, while the inner elastic belt 22 is connected with the outer elastic belt 23 through the elastic element 24 and supports the chassis 1 . As a result, the speaker enclosure 2 is suspended.

Claims (8)

1. speaker unit, comprise a cabinet (1) and at least one loudspeaker acoustic enclosure (2), loudspeaker acoustic enclosure (2) is linked on the cabinet (1) by jockey and elastic device, it is characterized in that, described jockey comprises the tightening member that protrudes on the cabinet (1), described elastic device comprises the elastic webbing (3) that is connected in cabinet by described tightening member, and described elastic webbing (3) makes described loudspeaker acoustic enclosure (2) realize suspending by circulating loudspeaker audio amplifier (2).

2. speaker unit according to claim 1, it is characterized in that, described elastic webbing (3) comprises an inner elastomeric band (22) and links an outer elastic belt (23) of described inner elastomeric band (22), described inner elastomeric band (22) hangs it by circulating loudspeaker audio amplifier (2), and described outer elastic belt (23) is tightened up by described tightening member and links cabinet (1).

3. speaker unit according to claim 2 is characterized in that, outer elastic belt (23) is linked inner elastomeric band (22) by flexible member (24), and flexible member (24) is made of the elasticity fragment.

4. speaker unit according to claim 1 is characterized in that described jockey also comprises support component, and described support component is sleeved on the described tightening member.

5. speaker unit according to claim 1, it is characterized in that, described elastic webbing (3) comprises at least one induction element (20), jockey comprises at least one corresponding director element (21) simultaneously, and director element (21) protrudes in cabinet (1) and induction element (20) is led.

6. according to each described speaker unit in the claim 1 to 5, it is characterized in that elastic webbing (3) is made by elasticity soft rubber band.

7. according to each described speaker unit in the claim 1 to 5, it is characterized in that elastic webbing (3) is made an elasticity integral body by injection mould.

8. according to each described speaker unit in the claim 1 to 5, it is characterized in that loudspeaker acoustic enclosure (2) comprises the circumferential groove (7) of a guiding elastic webbing (3).

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