WO2018058703A1

WO2018058703A1 - Sound box tuning with box body thereof

Info

Publication number: WO2018058703A1
Application number: PCT/CN2016/101938
Authority: WO
Inventors: 陈林
Original assignee: 陈林
Priority date: 2016-09-29
Filing date: 2016-10-12
Publication date: 2018-04-05
Also published as: CN106170111B; CN106170111A

Abstract

A sound box tuning with the box body thereof, comprises a box body (1), a speaker (3) provided, within the box body (1), on a front side wall of the box body and a circuit board (5) provided on a rear side wall of the box body. At least one of the side walls of the box body (1) which circumferentially surround the speaker (3) is provided as a double-layer cavity wall. The double-layer cavity wall consists of an inner cavity wall (10) and an outer cavity wall (11) which are separated by a sound channel (9). The sound channel (9) is provided open on the rear side wall of the box body (1). At least one sound passing groove (12) is provided in the inner cavity wall (10) along a horizontal direction. A support seat (14) is provided on the bottom wall of the box body (1). A lead screw (15) is provided on the support seat (14). A forward/backward slider (16) is sleeved on the lead screw (15) in a threaded engaging manner. The forward/backward slider (16) carries a tuning frame (17) which has a through hole extending from front side to rear side and is capable of covering the circumferential periphery of the speaker (3). The lead screw (15) is connected to a driving mechanism (18, 20). The sound box has the following advantages: mechanical tuning is realized, the cost is low, the power consumption is low, the performance is stable, and sound quality with respect to surrounding environment can be effectively improved.

Description

Box tuning speaker

Technical field

The invention relates to the technical field of speaker devices, and more particularly to a box tuning speaker.

Background technique

The speaker is the terminal of the entire sound system, its function is to convert the audio energy into the corresponding sound energy, and radiate it into the space. Its basic structure consists of a cabinet, and the core component is a speaker placed inside the cabinet.

Since the human subject's subjective feeling of sound is the most important criterion for evaluating the sound quality of a sound system, it can be considered that the performance of the speaker plays a key role in the sound quality of an audio system. Therefore, people want to do everything possible to transform the structure of the speaker to improve the sound quality of the speaker system.

For example, the patent CN201010137035.1 describes a speaker comprising a housing and a speaker and a sound cup housed in the housing. a sound chamber is formed in the casing, the speaker is configured to emit sound to the outside of the casing and the sound chamber, and the sound hole is opened in the casing for sounding the sound cavity in the sound chamber It is stated that the sound hole is conducted outside the casing. The housing is further provided with at least one conduit, wherein a conduit communicates with the sound hole and the sound chamber. The sound cup cover is disposed on the at least one conduit, and forms a bent sound channel between the sound hole and the sound cavity for conducting sound in the sound cavity to the sound hole. The sound cup is provided with at least two partitions, and the at least two partitions are spaced apart in the sound passage for separating the sound passage into at least two sub-channels connecting the sound chamber and the sound hole. The above speaker divides the sound channel into at least two sub-channels, so that the sound is restricted to resonate in the sub-channel, from And make the speaker sound more even.

However, the sound quality of the speaker system is also closely related to different playback environments. For example, the walls of some rooms are made of soundproof cotton soft packs, so it absorbs more of the bass and the sound is too clean; for example, the walls and floors of some rooms. With hard tiles, it absorbs less of the mid-bass, most of it is reflected, and the tone feels turbid. In the above two cases, the effect of the human ear to experience the speaker is greatly different. In short, the sound quality of the speaker system is poor.

Summary of the invention

The object of the present invention is to make up for the above-mentioned deficiencies of the prior art, and to provide a box-tuning type speaker which is mechanically tuned, low in cost, low in power consumption, stable in performance, and effective in improving the playback quality for the playback environment.

In order to achieve the above object, the present invention is achieved by the following technical solutions: a cabinet tuning speaker, including a box body, and a speaker board disposed on the front side wall of the box body and a circuit board on the rear side wall And characterized in that at least one of the side walls of the box surrounding the circumference of the speaker is provided as a double-layer cavity wall, and the double-layer cavity wall is separated from the sound channel by the inner cavity wall and the outer cavity wall The sound-emitting passage is disposed on the rear side wall of the casing as an open port, and the inner cavity wall is provided with at least one over-sounding groove in a horizontal direction, and a bottom wall of the casing is provided with a a screw is disposed on the support, the screw is arranged side by side with the over-sounding groove, and the screw is sleeved with an advance and retreat slider, and the forward and reverse slider carries a front and a rear opening And capable of covering a tuning box on a circumferential periphery of the speaker, the screw is connected with a driving mechanism.

The invention moves the tuning box forward or backward by the positive and negative rotation of the screw rod, thereby realizing Now the tuning box completely controls the over-sounding, partial opening and full-opening of the over-range, so as to achieve the gradual process of closing to unpacking or unpacking to closing, in order to achieve mechanical control of the volume, when closing the sound quality The speed is fast and the sound is tight, and when the box is opened, the sound quality is slow and the sound is loose. Therefore, the sound quality effect of the intermediate frequency and the low frequency is adjusted better for different playing environments, and the sound quality is effectively improved for the playing environment.

Preferably, one end of the over-the-sound groove is located at a position where the side wall of the side wall is transferred, but the entire length of the over-the-sound groove does not exceed 70% of the lateral width of the entire inner wall.

More than 70% is structurally unreasonable and the tuning box cannot be reset. And completely open the length of the sound channel will cause the sound adjustment to fail, and a part of the shadow sound must be left behind the box.

Preferably, the front and rear ports of the tuning box are not deeper than the entire length of the overtone groove.

When the tuning frame slides back to the bottom, its overtone slot is just close to the fully open state, and sliding forward moves the effect of shielding the sound channel. The tuning box can make full use of the length tuning without wasting space. Not easy to affect the tuning effect

Preferably, the over sound grooves are in a shape of a line.

The shape of the over-the-sound groove is designed to change the style of the product. For the relationship between its shape and tuning, the area is more decisive. On the other hand, the sound channel is even larger than the sound channel. Small, then the effect of the adjustment is also small, and vice versa, so the cross-sectional area of the sound channel should be consistent with the penetration area of the sound channel.

As an alternative to the above solution, the overtone groove is wavy. Same as above.

As an alternative to the above solution, the overtone groove is in the shape of a row of holes. Same as above.

Preferably, a plurality of reinforcing ribs are connected between the corresponding inner cavity wall and the outer cavity wall, and a plurality of reinforcing ribs separate a plurality of branch sounding channels corresponding to the sounding channel, and each branch sounds The channel is correspondingly divided into at least one over-the-sound groove disposed on the inner cavity wall.

In order to ensure the strength of the double-layer chamber wall, reinforcing ribs are added in the sound-emitting passage to ensure the strength of the entire box. In order to ensure that each branch sound channel has a tuning effect, the over-the-sound channel is indispensable.

Preferably, the driving mechanism is a knob, and the knob is disposed on an outer surface of the rear side wall of the casing.

The knob is used to drive the screw to rotate. The advantage is that the cost is low and the maintenance is convenient. The disadvantage is that the product is low-end, troublesome and laborious.

As an alternative to the above solution, the drive mechanism is a forward and reverse motor connected to the forward and reverse control buttons on the circuit board.

The scheme of positively reversing the motor to drive the screw to rotate is mechanical automation. The advantage is that the product is high-end atmosphere, easy to operate and labor-saving, and the disadvantage is high cost.

Preferably, a pair of sliding rods are arranged in parallel on the two sides of the screw rod on the two sides of the screw rod in the same horizontal plane as the screw rod, and the forward and backward sliding sleeves are inserted through the pair of sliding rods while the threaded rods are inserted.

In order to make the tuning box move more smoothly, the installation is more reliable, and the auxiliary support is supported by a pair of sliders.

Advantageous Effects: The present invention better adjusts the matching sound quality effects of the intermediate frequency and the low frequency for different playing environments, and realizes that the playback quality is effectively improved for the playing environment.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is a rear elevational view of the present invention;

Figure 3 is a cross-sectional view showing the structure of A-A in Figure 2;

Figure 4 is a schematic view showing the structure of only the box in Figure 3;

Figure 5 is a schematic view showing the structure of the box removed in Figure 3;

FIG. 6 is another schematic structural view of the box removed in FIG. 3. FIG.

In the picture: 1-box, 2-front window, 3-speaker, 4-back window, 5-circuit board, 6-power wiring port, 7-audio output interface, 8-audio input interface, 9-tone channel , 10- lumen wall, 11-external cavity wall, 12-over-sounding groove, 13-rib, 14-support, 15-screw, 16-advance and retract slider, 17-tone box, 18-knob, 19-slider, 20-plus-reverse motor.

detailed description

In order to make the technical means, the inventive features and the objects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

Embodiment 1: As shown in FIG. 1 and FIG. 2, a box-type tuning speaker includes a box body 1 made of solid wood. The front side wall of the box body 1 is provided with a front window 2 for mounting the speaker 3, and the speaker 3 is housed. The rear side wall of the box body 1 is disposed at a horizontal intermediate position of the volley. The rear side wall of the box body 1 is provided with a rear window 4 for mounting the circuit board 5. The circuit board 5 is exposed on the outer portion of the box body 1 and is provided with a power source wiring port 6 and audio. Output interface 7 and audio input interface 8.

As shown in Figures 3 and 4, the case 1 surrounds the circumferential side wall of the speaker 3 (the front and rear side walls need to be arranged with the speaker and the circuit board, and the bottom wall is covered by the ground): the upper side wall and the two sides The side walls are each provided as a double-layer chamber wall, and all the double-layer chamber walls are formed by the inner chamber wall 10 and the outer chamber wall 11 separated from the sound-emitting passage 9, and all the sound-emitting passages 9 are on the rear side wall of the box body 1. Provided as an open port, all of the inner cavity walls 10 are provided with a plurality of sound grooves 12 arranged side by side in the horizontal direction, wherein four inner wall walls 10 of the upper side walls are disposed, and inner wall 10 of the side walls of the two side walls are respectively disposed. Arrange five. One end of the sound groove 12 is located on the side wall The position of the front side wall is connected, but the entire length of the overtone groove 12 does not exceed 70% of the lateral width of the entire inner cavity wall 10, preferably 50% here, and the overtone groove 12 has a shape of a line.

A plurality of reinforcing ribs 13 are connected between the corresponding inner cavity wall 10 and the outer cavity wall 11 on each side. The number of specific reinforcing ribs 13 is appropriately arranged according to the area of the double-layer cavity wall, and preferably two are used here, and these reinforcing ribs 13 will be Corresponding to the sound outlet channel 9, a plurality of branch sound exit channels are separated, and each branch sound output channel is correspondingly divided into at least one over sound groove 12 disposed on the inner cavity wall 10, and the corresponding number of the corresponding overtone slots 12 is separated according to The area of the branch sound channel is appropriately arranged.

As shown in FIG. 5, the bottom wall of the casing 1 is provided with a seat 14 on which a screw rod 15 is disposed. The screw rod 15 is arranged in parallel with the over-the-sound groove 12, and the screw rod 15 is sleeved in a threaded manner. An advancing and retracting slider 16 is disposed, and a pair of sliding bars 19 are arranged on the support 14 on the two sides of the screw rod 15 in parallel with the same horizontal plane of the screw rod 15. The advancing and retracting sliding block 16 is inserted through the threaded rod 15 while the pair of sliding rods 19 are worn. . The advance and retreat slider 16 carries a front and rear opening and can cover the tuning box 17 on the circumferential periphery of the speaker 3. The front and rear openings of the tuning frame 17 are smaller than the entire length of the overtone slot 12, and the front and rear of the tuning box 17 The ports are avoided towards the front wall and rear, respectively. The lead screw 15 is connected to a drive mechanism. The driving mechanism is a knob 18, and the knob 18 is disposed on the outer surface of the rear side wall of the casing 1.

Embodiment 2: The overtone groove 12 is wavy. The rest are the same as in the first embodiment.

Embodiment 3: The overtone groove 12 is in the shape of a row of holes. The rest are the same as in the first embodiment.

Embodiment 4: As shown in FIG. 6, the driving mechanism is a forward/reverse motor 20, and the forward/reverse motor 20 is connected to a forward/reverse control button on the circuit board 5 (not shown). The rest are the same as in the first embodiment.

Embodiment 5: In the side wall of the casing 1 which surrounds the speaker 3 in the circumferential direction: only the upper side wall Set to double wall. The rest are the same as in the first embodiment.

Use: The invention moves the tuning box forward or backward by the positive and negative rotation of the screw rod, thereby realizing complete shielding, partial opening and complete opening of the tuning box for the over-range, to achieve the closing of the box. The gradual process of unpacking or unpacking to closing the box to achieve mechanical control of the volume, when the box is closed, the sound quality is fast and the sound is tight, and when the box is opened, the sound quality is slow and the sound is loose.

Claims

A box-type tuning speaker, comprising a box body, and a speaker board disposed on a front side wall of the box body and a circuit board on the rear side wall, wherein the box body surrounds the speaker in a circumferential direction At least one of the side walls is configured as a double-layer chamber wall, the double-layer chamber wall being formed by the inner chamber wall and the outer chamber wall separated from the sound passage, the sound-emitting passage being on the rear side of the box The wall is disposed as an open port, and the inner cavity wall is provided with at least one over-sound groove in a horizontal direction, and a bottom of the box is provided with a seat, and the support is provided with a screw, the wire The rod is arranged side by side with the over-sounding groove, and the threaded rod is sleeved with an advancing and retracting slider, and the advancing and retracting sliding block carries a front and rear opening and can be wrapped around the circumference of the speaker. The screw is connected to a driving mechanism.
The cabinet-type tuning speaker according to claim 1, wherein one end of the over-the-sound groove is located at a position where the side wall of the side wall is transferred, but the entire length of the over-the-sound groove does not exceed the entire inner cavity. 70% of the lateral width of the wall.
The cabinet-type tuning speaker according to claim 2, wherein the front and rear ports of the tuning box are not deeper than the entire length of the overtone.
The cabinet-tuned sound box according to claim 2 or 3, wherein the over-the-sound groove is in a shape of a line.
The cabinet-type tuning speaker according to claim 2 or 3, wherein the over-the-sound groove is wavy.
The cabinet-type tuning speaker according to claim 2 or 3, wherein the over-the-sound groove is in the shape of a row of holes.
A cabinet-tuned speaker according to claim 1 or 2 or 3, wherein A plurality of reinforcing ribs are connected between the corresponding inner cavity wall and the outer cavity wall, and a plurality of reinforcing ribs separate a plurality of branch sounding passages corresponding to the sound output passage, and each branch sounding passage channel is correspondingly divided into at least one set Over the sound groove on the cavity wall.
The cabinet-type tuning speaker according to claim 1, wherein the driving mechanism is a knob, and the knob is disposed on an outer surface of the rear side wall of the casing.
The cabinet-type tuning speaker according to claim 1, wherein the driving mechanism is a forward-reverse motor, and the forward-reverse motor is connected to a forward-reverse control button on the circuit board.
The box-type tuning speaker according to claim 1 or 8 or 9, wherein a pair of sliding rods are arranged in parallel with the same horizontal plane of the screw rod on both sides of the screw rod, and the advance and retreat sliders are threaded by the threaded rod. At the same time wear the pair of sliders.