WO2014110741A1

WO2014110741A1 - Loudspeaker

Info

Publication number: WO2014110741A1
Application number: PCT/CN2013/070554
Authority: WO
Inventors: 刘骏涛
Original assignee: Liu Juntao
Priority date: 2013-01-16
Filing date: 2013-01-16
Publication date: 2014-07-24
Also published as: CN103079123B; CN103079123A

Abstract

A loudspeaker comprising a housing, a sound outlet opening used for sound output, a speaker cover for closing the opening and fixed at one end of the housing, and a stopper element arranged at the rear end of the speaker cover for the speaker cover to lean against. The loudspeaker also comprises a limiting element used for limiting the speaker cover, thus playing a limiting effect for the speaker cover. Because the speaker cover leans against the stopper element and does not fall rearwards, the limiting element is capable of playing a role in preventing the speaker cover from falling forwards and thereby closing the sound output opening.

Description

a speaker

[Technical Field]

The present invention relates to the field of household appliances, and more particularly to a speaker. 【Background technique】

I have designed a speaker comprising a housing, an opening for sound emission disposed on the housing, a speaker cover fixed to the housing by a pin for closing the opening, and being disposed at the same end of the housing. The yoke is disposed on the horn cover, and the pin shaft is disposed on the horn cover, and the horn cover is rotated by the pin shaft to facilitate opening or closing the horn cover, and the horn cover can be leaned against the stopper when the horn cover is opened. Avoid tilting backwards; and there is a cavity in the block, which communicates with the cavity in the housing. Increasing the resonance cavity is beneficial to increase the volume and improve the sound quality. This program is not public. However, the retaining member is placed against the horn cover only to prevent the horn cover from falling backwards. When the horn cover rests on the stopper, it may fall forward, thereby affecting the speaker playback.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a speaker that prevents the speaker cover from tipping forward.

The object of the present invention is achieved by the following technical solutions: a sound box comprising a housing, an acoustic opening for sound emission, a speaker cover closing the opening and fixed at one end of the housing, and a rear end of the speaker cover A stopper for the speaker cover to lean against, the speaker further comprising a limiting member for limiting the speaker cover.

Preferably, the limiting member is disposed at a fixed position of the horn cover. Set the limiter at the fixed position of the speaker cover for easy setup, production, and easy implementation.

Preferably, the horn cover is fixed on the housing by a pin shaft, and the horn cover is provided with a pin shaft at one end thereof, the pin is axially protruded downwardly outside the horn cover, and the corresponding housing is provided for placing the The recess of the pin, the limiting member is a protrusion disposed in the recess, and the bump is in contact with the pin when the horn cover is in an open state. The horn cover can be rotated by the pin shaft. When the horn cover is opened, the bump will contact the pin shaft and have an upward force on the pin shaft. Since the force acts on each other, the pin shaft has a direction to the bump. The lower force, because the horn cover has a stopper at the rear end when it is opened, does not fall backward, thereby passing the pin and the bump The relationship between the two forces limits the horn cover to the stop, preventing it from automatically tipping forward. Preferably, the bump is disposed at a bottom position in the middle of the recess. This is the specific position of the bump, and the bump is placed at the bottom of the middle of the recess, so that the limit of the bump to the pin can be optimized.

Preferably, the upper end of the bump is small and the lower end is large. This is a specific structure for setting the bumps. This arrangement facilitates the opening of the horn cover, and during the opening of the horn cover, as the bumps gradually decrease from bottom to top, the force between the bumps and the pins follows. The opening of the horn cover is getting larger and larger, thereby ensuring the limit of the horn cover.

Preferably, the lengths of the bumps on the upper and lower ends in the longitudinal direction of the pin are equal. This arrangement makes the length of the bumps uniform. When the bump and the pin are in contact, one side of the bump will contact the pin, so that the force of the bump and the pin is uniform when the force interacts, thereby avoiding the bump and the pin. Damaged, and this arrangement can increase the contact area between the bump and the pin, thereby making the limit effect better.

Preferably, the vertical section of the bump is an isosceles trapezoid. This is a specific structure for setting the bumps, so that the bumps are gradually reduced from top to bottom, which saves material.

Preferably, the bumps are two and are evenly distributed at the bottom of the recess. Setting two bumps increases the limit of the bump.

Preferably, when the horn cover is in a closed state, the pin shaft is provided with a groove for placing the protrusion. When the horn cover is closed, the protrusion is located in the groove, the groove is arranged corresponding to the structure of the protrusion, and the groove is larger than the protrusion, so that the protrusion is conveniently placed in the groove during the opening and closing of the horn cover.

Preferably, the limiting member is a magnet disposed on the blocking member and corresponding to the horn cover. A magnet is arranged on the horn cover, and a corresponding magnet is arranged on the damper. When the horn cover is in an open state, the horn can be restrained at the stopper by the attraction between the magnets, thereby preventing the front from falling forward.

In the invention, since the speaker is arranged for the limiting member of the limiting speaker cover, the limiting member can limit the speaker cover, and since the rear portion of the speaker cover leans against the blocking member, the limiting member is not tilted backward, so that the limiting member is To prevent the speaker cover from tipping forward, ensure that the speaker cover is in an open state, preventing the speaker cover from tipping forward and closing the sound hole to affect the use of the speaker. [Description of the Drawings]

1 is a schematic structural view of a casing according to Embodiment 1 of the present invention;

2 is a schematic structural view of a louver cover according to Embodiment 1 of the present invention.

Among them: 11, limit parts (bumps); 12, openings; 13, bushings;

2, pin; 21, groove.

【detailed description】

The invention will now be further described with reference to the drawings and preferred embodiments.

The invention discloses a sound box, comprising: a housing, an sounding opening for sound emission, a speaker cover closing the opening and fixed at one end of the housing, and a blocking member disposed at the rear end of the speaker cover for the speaker cover to lean against According to the first embodiment of the present invention, as shown in FIG. 1 and FIG. 2, the speaker further includes a limiting member 11 for limiting the bar. In the present invention, since the speaker is disposed for the limiting member 11 of the limiting speaker cover, the limiting member 11 can limit the speaker cover, and the rear portion of the speaker cover does not tilt backwards due to the backrest member 15, thereby limiting The position member 11 serves to prevent the speaker cover from tipping forward, and ensures that the speaker cover is in an open state, preventing the speaker cover from tipping forward and closing the sound hole to affect the use of the speaker.

As shown in FIG. 1, FIG. 1 is a schematic structural view of a speaker housing according to Embodiment 1 of the present invention. In this embodiment, the housing includes a detachable fixed upper shell and a lower shell, FIG. 1 is The structure of the upper shell, the speaker also includes a speaker, the speaker is disposed between the upper shell and the lower shell, and the upper shell of the speaker is provided with an opening 12 for sounding, and the opening 12 is corresponding to the speaker. Referring to FIG. 2, one end of the horn cover is fixed on the upper casing through the pin 2, and one end of the horn cover is provided with a pin shaft 2, and the upper casing is provided with a sleeve 13 matched with the pin shaft 2, and the louver eight cover passes through the pin The shaft 2 can be rotated to facilitate opening of the bar. The louver cover is arranged to cooperate with the opening 12, and the speaker cover is closed to the opening 12 when the speaker is not used, thereby preventing dust or other debris from falling into the speaker; when the speaker is used, the speaker cover is opened, and the sound is from the opening 12 Spread it out.

The upper and lower shells are detachable and fixed, specifically by screws, the screws are firmly fixed, and are easily disassembled, so that the components in the cabinet can be removed by removing the upper and lower shells if they need to be inspected or repaired. Of course, the housing of the speaker of the present invention can also be integrally provided, and the integrated arrangement can save the assembly process. Save production time.

The speaker further includes a stopper 15. As can be seen from Fig. 1, at the rear end of the opening 12, there is a stopper 15 protruding from the upper portion of the upper casing. When the horn is opened, the horn is tilted backward, due to the setting. The blocking member 15 will lean against the blocking member 15 when the speaker cover is opened, and will not fall backward, so that the overall center of gravity of the speaker is not offset, thereby making the speaker placement more stable.

When the speaker cover is opened, it can lean back against the stopper, but the speaker cover will be tilted forward. In this embodiment, the limiting member can limit the speaker cover to prevent the speaker cover from falling forward in the open state. As shown in Figure 1 and Figure 2, the details are as follows.

In this embodiment, the horn cover is fixed to the housing by the pin 2, and the horn cover is provided with a pin 2 at one end thereof, and the pin 2 protrudes downwardly outside the horn cover, corresponding to the housing A recess 14 for arranging the pin 2 is provided. The limiting member 1 is a projection 11 disposed in the recess 14. The bump 11 is in contact with the pin 2 when the horn is in an open state. The horn cover can be rotated by the pin shaft 2. When the horn cover is opened, the bump 11 will contact the pin 2 and have an upward force on the pin shaft 2, since the force acts on each other, the pin 2 pair The bump 11 has a downward force, and since the horn cover is locked at the rear end when the horn is opened, it does not fall backward, so that the force relationship between the pin 2 and the bump 11 is The horn cover is limited to the stop 15 to prevent it from automatically tipping forward.

In this embodiment, the bump 11 is disposed at a bottom position in the middle of the recess 14; this is a specific position where the bump 11 is disposed, and the bump 11 is disposed at the bottom of the middle of the recess 14 so that the bump 11 can be The pin 2 has the best limit.

In the embodiment, the upper end of the bump 11 is small and the lower end is large; this is a specific structure for providing the bump 11 so that the speaker cover is opened, and during the opening of the speaker cover, since the bump 11 is from the bottom to the bottom As the upper portion is gradually reduced, the force between the bump 11 and the pin 2 is larger as the horn cover is opened, thereby ensuring the limit of the horn cover. The lengths of the bumps 11 along the longitudinal direction of the pin 2 are equal; the arrangement is such that the length of the bumps 11 is uniform, and when the bumps 11 and the pin 2 are in contact, one side of the bumps 11 is in contact with the pin 2, thereby The bump 11 and the pin 2 are evenly stressed when the force interacts, thereby preventing the bump 11 and the pin 2 from being damaged, and the arrangement can increase the between the bump 11 and the pin 2 The contact area makes the limit effect better. The vertical section of the bump 11 is an isosceles trapezoid; this is a specific structure for arranging the bumps 11, so that the bumps 11 are gradually reduced from top to bottom, which can save material. Of course, the bumps can also be set. Into other structures, such as isosceles triangles.

In this embodiment, the bumps 11 are two and are evenly distributed on the bottom of the recess 14; the two bumps 11 are provided to increase the limit effect of the bumps 11. The number of bumps is set as needed, and is not limited to two.

As shown in FIG. 2, FIG. 2 is a schematic structural view of a louver cover according to Embodiment 1 of the present invention. Referring to FIG. 1, when the horn cover is in a closed state, the pin 2 is provided for placing the The recess of the bump 11 is 21; when the horn cover is closed, the bump 11 is located in the recess 21, the recess 21 is disposed corresponding to the structure of the bump 11, and the recess 21 is larger than the bump 11, so that the horn cover is opened, The bump 11 is placed in the recess 21 during the closing process.

As a second embodiment of the present invention, the difference from the first embodiment is that the limiting member is a magnet disposed on the blocking member and the corresponding horn cover; a magnet is disposed on the horn cover, and a corresponding magnet is disposed on the damper, the horn The cover, when in the open state, can limit the horn to the stop by the attraction between the magnets, thereby preventing it from tipping forward. Other settings and benefits are the same as in the first embodiment.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments. It is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.

Claims

Rights request

1. A speaker, including a casing, a sound-emitting opening for emitting sound, a speaker cover that closes the opening and is fixed at one end of the casing, and a stopper provided at the rear end of the speaker cover for the speaker cover to lean against, characterized by: , the sound box also includes a limiting member for limiting the lid of the laba.

2. The sound box according to claim 1, characterized in that the limiting member is provided at the fixed position of the speaker cover.

3. The speaker according to claim 2, wherein the speaker cover is fixed on the casing through a pin, a pin is provided at one end of the speaker cover, and the pin protrudes downward outside the speaker cover. , the corresponding housing is provided with a recess for placing the pin, and the limiting member is a convex block arranged in the recess. When the horn cover is in an open state, the convex block contacts the pin.

4. The sound box according to claim 3, characterized in that the bump is arranged at the bottom position in the middle of the depression.

5. The speaker according to claim 3, characterized in that the upper end of the bump is small and the lower end is large.

6. The sound box according to claim 5, characterized in that the lengths of the upper and lower ends of the bumps along the length direction of the pin shaft are equal.

7. The sound box according to claim 6, characterized in that the vertical cross section of the bump is an isosceles trapezoid.

8. The sound box according to claim 7, characterized in that there are two said bumps, and they are evenly distributed at the bottom of the depression.

9. The sound box according to any one of claims 3 to 8, characterized in that when the speaker cover is in a closed state, the pin is provided with a groove for placing the bump.

10. The speaker according to claim 1, characterized in that the limiting member is a magnet provided on the stopper and on the corresponding lid.