CN210868053U

CN210868053U - Sound box

Info

Publication number: CN210868053U
Application number: CN201922300840.0U
Authority: CN
Inventors: 吴海全; 熊福; 余新; 彭久高
Original assignee: Shenzhen Grandsun Electronics Co Ltd
Current assignee: Shenzhen Grandsun Electronics Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-06-26
Anticipated expiration: 2029-12-19

Abstract

The utility model provides a sound box, which comprises a box body shell, a driven disk, a loud-speaking component and a control circuit board, wherein the box body shell is provided with a sound mixing cavity and a placement cavity isolated from the sound mixing cavity, and the box body shell and two extending ends thereof are respectively provided with a sound outlet hole and a sound leading hole which are communicated with the sound mixing cavity; the driven disc is connected with the box body shell and covers the sound outlet hole; the loudspeaker component is connected with the box body shell and covered on the sound leading hole, the loudspeaker component is used for playing audio and can drive the driven disc to vibrate by vibrating the air in the sound mixing cavity, and the loudspeaker component and the driven disc surround the sound mixing cavity to form a sealed space; the control circuit board is electrically connected with the loudspeaker assembly and is positioned in the placing cavity. The utility model discloses a set up and settle the chamber and make control circuit board place can keep apart with the sound mixing chamber when settling the chamber, the subassembly of raising one's voice drives the driven disk vibration when vibrating the air of sound mixing intracavity, can not vibrate the control circuit board of settling the intracavity, and control circuit board's setting can not influence the air flow of sound mixing intracavity yet.

Description

Sound box

Technical Field

The utility model belongs to the technical field of audio signal conversion equipment, especially, relate to a sound box.

Background

The sound box is a terminal of the whole sound system, which is used for converting audio electric energy into corresponding sound energy and radiating the sound energy to the space, and is an extremely important component of the sound system and is responsible for converting an electric signal into an acoustic signal for people to listen to. The existing bass sound box usually comprises a box shell, a loudspeaker component connected to one end of the box shell and a passive disc connected to the other end of the box shell, wherein the box shell usually has a sound mixing cavity, but the arrangement of a control circuit board in the sound mixing cavity influences the flow of air flow in the sound mixing cavity, so that the bass effect is influenced, and meanwhile, the flow of the air flow causes the control circuit board to vibrate, so that the condition of poor electric connection is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sound box aims at solving among the prior art because control circuit board etc. establish in mixing of sound chamber and lead to influencing control circuit board electricity connection effect and hinder the technical problem that the air current flows simultaneously.

The utility model discloses a realize like this, a sound box, include:

the box body shell is provided with a sound mixing cavity and a mounting cavity isolated from the sound mixing cavity, and the box body shell and two extending ends of the box body shell are respectively provided with a sound outlet hole and a sound leading hole which are communicated with the sound mixing cavity;

the driven disc is connected with the box body shell and covers the sound outlet hole;

the loudspeaker component is connected with the box body shell and covered on the sound leading hole, the loudspeaker component is used for playing audio and can drive the driven disc to vibrate by vibrating air in the sound mixing cavity, and the loudspeaker component and the driven disc surround the sound mixing cavity to form a sealed space;

and the control circuit board is electrically connected with the loudspeaker assembly and is positioned in the placement cavity.

In one embodiment, the box body shell comprises a shell body and a partition board, the shell body is provided with a shell inner cavity which is arranged in a columnar mode, the partition board is located in the shell inner cavity and divides the shell inner cavity into the sound mixing cavity and the placement cavity, the partition board is parallel to the central axis of the shell inner cavity, and the volume of the sound mixing cavity is larger than that of the placement cavity.

In one embodiment, the ratio of the volume of the sound mixing chamber to the volume of the placement chamber is 3-10.

In one embodiment, the enclosure further comprises a cabinet support for supporting the speaker assembly off a support surface.

In one embodiment, the cabinet support includes a frame body and a frame base for placement on a support surface, the frame body is connected to the frame base and extends upwardly, the frame body is connected to the cabinet housing and allows the speaker assembly to be spaced from the support surface.

In one embodiment, the frame body is made of a flexible material to absorb vibration energy of the speaker assembly.

In one embodiment, the rack body is provided with a wiring cavity communicated with the mounting cavity, the control circuit board is electrically connected with the loudspeaker component through an electric lead, and the electric lead is arranged in the wiring cavity in a penetrating mode.

In one embodiment, the sound box further includes a sound outlet grille connected to the box housing and covering the speaker assembly.

In one embodiment, the inner wall of the sound mixing cavity is provided with a clamping groove arranged along the edge of the connecting hole, the speaker component is provided with an annular clamping edge, the clamping edge is accommodated in the clamping groove, and the outer surface of the clamping edge is attached to the groove wall of the clamping groove.

In one embodiment, the sound box further comprises a sealing ring sleeved on the clamping edge, and the sealing ring is located between the outer surface of the clamping edge and the groove wall of the clamping groove.

The utility model discloses technical effect for prior art is: the utility model discloses a set up and settle the chamber and make control circuit board place can keep apart with the sound mixing chamber when settling the chamber, the subassembly of raising one's voice drives the driven disk vibration when vibrating the air of sound mixing intracavity, can not vibrate the control circuit board of settling the intracavity, and control circuit board's setting can not influence the air flow of sound mixing intracavity yet.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a sound box provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of the sound box provided by the embodiment of the present invention at a viewing angle;

fig. 3 is a cross-sectional view of the sound box provided by the embodiment of the present invention at another viewing angle;

fig. 4 is an exploded view of a sound box according to an embodiment of the present invention.

Description of reference numerals:

10. a case body shell; 101. a sound mixing cavity; 102. a low sound hole; 103. a sound introducing hole; 104. a clamping groove; 105. a placement cavity; 11. a housing body; 12. a separator plate; 20. a speaker assembly; 201. a position avoiding cavity; 202. the top is provided with a hole; 203. a support hole; 21. a speaker; 22. a speaker support; 30. a driven disc; 40. a box body bracket; 401. a wiring cavity; 41. a rack body; 42. a frame base; 421. a non-slip mat; 43. a top cover; 50. a seal ring; 501. fixing grooves; 60. a sound outlet grille; 70. a control circuit board; 80. electrical lead

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 4, the present invention provides a sound box, which includes a box housing 10, a passive plate 30, a speaker assembly 20, a control circuit board 70, a box support 40, a sound outlet grid 60 and a sealing ring 50.

Referring to fig. 3, the box casing 10 is cylindrical, the box casing 10 has a sound mixing cavity 101 and a mounting cavity 105 isolated from the sound mixing cavity 101, and in a use state, the box casing 10 extends in an up-down direction, and a bass hole 102 and a sound guide hole 103 both communicating with the sound mixing cavity 101 are formed at both extending ends, so that the bass hole 102 and the sound guide hole 103 are disposed at an interval, and an airflow channel for airflow generated by vibration is formed from the sound guide hole 103 to the bass hole 102.

Referring to fig. 4, the speaker assembly 20 is connected to the box casing 10 and covers the sound introducing hole 103, the speaker assembly 20 includes a speaker holder 22 connected to the box casing 10 and at least two speakers 21 connected to the speaker holder 22 and used for playing audio, and the sound emitting direction of the speakers 21 faces outward, so that a user can clearly hear the sound emitted by the speakers. The speaker frame 22 defines a top opening 202 and a plurality of supporting holes 203, and a speaker 21 is mounted at one of the supporting holes 203. The speaker holders 22 are used to support and connect the speakers 21, and to allow the speakers 21 to be spaced apart. Each speaker 21 can be arranged along the extending direction of box shell 10, and each speaker 21 all moves towards same direction sound production like this, can't consider the audio in other directions, for making the user can all hear sound in all directions, and keep good audio, each speaker 21 is cyclic annular distribution and its play sound direction all moves towards the horizontal direction, if this audio amplifier is broadcast indoor like this, whole room just can be filled to sound, and the user all can obtain high-quality music experience in the optional position. The speaker holder 22 is made of a high-strength material, and prevents the speaker assembly 20 from being deformed, and at the same time, supports the sound-introducing hole 103 of the cabinet housing 10.

Referring to fig. 2, the speaker holder 22 and the plurality of speakers 21 together form a space-avoiding cavity 201 communicated with the sound mixing cavity 101, the sound introducing hole 103 is disposed opposite to the top opening 202, and the space-avoiding cavity 201 and the sound mixing cavity 101 together form the above-mentioned sealed space. The air current discharge capacity that each speaker 21 produced is at the preliminary mixing in keeping away a chamber 201 to in mixing sound chamber 101 interior harmony to balanced state, keep away a chamber 201 and not only enlarged the size in confined space, enlarged the distance between each speaker 21 and passive dish 30, make the bass effect more outstanding, reduced the height of box shell 10 under the condition of the same broadcast effect moreover, make the audio amplifier more small and exquisite, practice thrift the space. Meanwhile, the avoiding cavity 201 can also be used for arranging electric connecting wires of the loudspeaker 21, and plays a certain role in heat dissipation.

Referring to fig. 2, the passive disk 30 can vibrate under the action of sound pressure, and is connected to the cabinet housing 10 and covers the bass hole 102, the cabinet housing 10, the speaker assembly 20 and the passive disk 30 together enclose a sealed space, the speaker 21 can vibrate air in the sealed space, and the air pushes the passive disk 30 to vibrate under the action of the sound pressure, and the passive disk 30 pushes external air to vibrate, so as to generate a bass effect. If the space enclosed by the cabinet housing 10, the speaker unit 20 and the passive disk 30 is not sealed, the sound pressure is dispersed outward, and is not easily transmitted to the passive disk 30 or the sound pressure transmitted to the passive disk 30 is small, which affects the bass effect. The cabinet housing 10 is provided with the sound mixing chamber 101 so that the displacement of the vibrating airflow generated by each speaker 21 can be mixed and tend to balance in the sound mixing chamber 101, and the passive disk 30 is regularly and rhythmically agitated under the action of the balanced vibrating airflow to push air and transmit vibration to human ears, thereby producing bass sound effect. This audio amplifier has replaced traditional subwoofer to send the bass through mixing chamber 101 and passive dish 30, and mixing chamber 101 not only can the automatic balance each speaker 21's vibration air current discharge capacity, can make each speaker 21's sound pressure coincide moreover, has increased passive dish 30's vibration range for the bass is fuller, and the bass effect is outstanding, and simple structure has reduced manufacturing cost.

Referring to fig. 3, the control circuit board 70 is disposed in the installation cavity 105 and electrically connected to the speaker assembly 20. The control circuit board 70 is used for controlling the speaker assembly 20 to play audio. Therefore, the control circuit board 70 does not obstruct the air flow in the sound mixing cavity 101, and the air flow in the sound mixing cavity 101 does not affect the impact on the control circuit board 70, thereby ensuring the structural stability of the control circuit board 70.

The utility model discloses a setting up and settling chamber 105 and making control circuit board 70 place can keep apart with mixing sound chamber 101 when settling chamber 105, and when the air of subassembly 20 of raising one's voice in the vibration mixing sound chamber 101 drove driven disk 30 vibration, can not influence the control circuit board 70 who settles in the chamber 105, and the air that sets up of control circuit board 70 in can not influencing mixing sound chamber 101 flows yet.

Referring to fig. 3, specifically, the box casing 10 includes a casing body 11 and a partition board 12, the casing body 11 is provided with a cylindrical casing inner cavity, the partition board 12 is located in the casing inner cavity and divides the casing inner cavity into a sound mixing cavity 101 and a placement cavity 105, the partition board 12 is parallel to a central axis of the casing inner cavity, and a volume of the sound mixing cavity 101 is larger than a volume of the placement cavity 105. The volume of the sound mixing cavity 101 is larger than that of the placement cavity 105, preferably, the volume of the placement cavity 105 is matched with the volume of the control circuit board 70 and the volume of the electric lead 80 which is connected with the control circuit board 70 and extends outwards so as to fix the position of the control circuit board 70, and the sound mixing cavity 101 occupies the excessive half volume of the inner cavity of the shell, so that the box body shell 10 can fully utilize the space of the sound mixing cavity 101 to mix the air flow displacement so as to enable the air flow displacement to tend to be balanced. Specifically, the ratio of the volume of the mixing chamber 101 to the volume of the placement chamber 105 is 3 to 10 so that the mixing chamber 101 fully exerts space advantages.

Referring to fig. 1 and 4, the box support 40 includes a frame body 41 made of a flexible material, a frame base 42 for placing on a supporting surface, and a top cover 43 located above the speaker assembly 20, wherein the bottom surface of the frame base 42 is disposed on a non-slip mat 421 for preventing slipping, the frame body 41 is connected to the frame base 42 and extends upward, and the top cover 43 is connected to an extending end of the frame body 41. The speaker unit 20 is connected to the side surface of the frame body 41 through the cabinet housing 10, and the frame base 42 may be disposed to face the speaker unit 20, so that the speaker unit 20 can be stably suspended on the cabinet holder 40, and preferably, the frame base 42 has a circular ring shape, thereby increasing a supporting area and reducing the weight of the cabinet holder 40. The frame body 41 can allow the speaker unit 20 to be spaced apart from the support surface, and since it is made of a flexible material, it can absorb vibration energy of the speaker unit 20 to reduce vibration of the frame base 42. The flexible material is preferably a stainless steel material capable of preventing the case bracket 40 from rusting while absorbing shock. Preferably, the box bracket 40 is a box bracket 40 integrally formed of stainless steel, i.e. the frame body 41, the frame base 42 and the top cover 43 are all made of stainless steel, so as to facilitate processing, and have high stability and are not easy to break. The top cover 43 is located above the speaker assembly 20 for preventing the speaker assembly 20 from falling ash. The frame base 42 is preferably ring-shaped, and increases a supporting area and reduces the weight of the casing bracket 40. The anti-slip pad 421 may be a rubber pad, which can absorb certain vibration energy while preventing slipping.

Loudspeaker component 20 passes through box support 40 and the holding surface contact, because frame body 41 is made by toughness material, consequently can absorb loudspeaker component 20's vibration energy, reduces loudspeaker component 20 and transmits the vibration to frame base 42, avoids the shell of audio amplifier because the vibration constantly collides with the holding surface and takes place wearing and tearing, reduces the noise that produces between audio amplifier and the holding surface.

In one embodiment, referring to fig. 3, the frame body 41 has a trace cavity 401, the control circuit board 70 is electrically connected to the speaker 21 through an electrical conductor 80 to control the speaker 21, and the electrical conductor 80 is disposed through the trace cavity 401. Like this electric lead 80 just can not leak outward, avoids influencing beautifully, prevents to receive external the emergence electric leakage that collides with, slows down ageing to avoid occupying the inner space of mixing sound chamber 101, prevent to hinder mixing sound chamber 101 in the air flow, the air flow in the mixing sound chamber 101 can not arouse rocking of electric lead 80 yet.

Referring to fig. 4, the sound outlet grill 60 is connected to the box housing 10 in a hood shape and covers the speaker assembly 20, the sound outlet grill 60 is made of a hard material, and the sound outlet grill 60 has a gap capable of ventilating, and plays a role in protection and preventing the speaker assembly 20 from being damaged. In this implementation, go out sound grid 60 and can also regard as the base support box shell 10 of audio amplifier to make driven disk 30 up, when driven disk 30 vibrates like this, the air current of its production can not blockked by holding surface or wall, and the bass audio can fill whole room, makes the user obtain better music and experiences.

Referring to fig. 2 and 4, in the present embodiment, the inner wall of the sound mixing cavity 101 is provided with a clamping groove 104 disposed along the edge of the sound guiding hole 103, and the speaker bracket 22 is provided with a clamping edge disposed along the edge of the top opening 202, the clamping edge being annular and being received in the clamping groove 104. The preliminary location of speaker support 22 and box shell 10 has been realized with the connection at joint groove 104 and joint edge like this, and the screw of being convenient for with speaker support 22 and strengthening rib is counterpointed, and simultaneously, the joint edge has played limiting displacement to box shell 10, prevents that box shell 10 from upwards taking place to warp.

Referring to fig. 2 and 4, in order to prevent the air leakage of the sealed space, the sealing ring 50 is sleeved outside the clamping edge, and the sealing ring 50 is located between the outer surface of the clamping edge and the groove wall of the clamping groove 104, so as to elastically abut against the outer surface of the clamping edge and the groove wall of the clamping groove 104 when the speaker support 22 is aligned with the box casing 10, thereby not only increasing the friction between the outer surface of the clamping edge and the groove wall of the clamping groove 104, but also playing a role in sealing, and leaking the air in the sealed space, thereby ensuring the bass effect. Preferably, a fixing groove 501 is formed on one side of the sealing ring 50 facing the speaker assembly 20, and the clamping edge is accommodated in the fixing groove 501, so that the sealing ring 50 further abuts against the groove bottom of the clamping groove 104 and the top surface of the clamping edge, thereby realizing double-side sealing between the clamping edge and the clamping groove 104 and enhancing the sealing performance between the speaker assembly 20 and the box housing 10.

The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are intended to be included within the protection scope of the invention.

Claims

1. An acoustic enclosure, comprising:

2. The sound box according to claim 1, wherein the box body housing comprises a housing body and a partition plate, the housing body defines a cylindrical housing cavity, the partition plate is located in the housing cavity and divides the housing cavity into the sound mixing cavity and the placement cavity, the partition plate is parallel to a central axis of the housing cavity, and a volume of the sound mixing cavity is larger than a volume of the placement cavity.

3. An acoustic enclosure according to claim 2, wherein the ratio of the volume of the mixing chamber to the volume of the placement chamber is from 3 to 10.

4. The acoustic enclosure of claim 3, further comprising an enclosure support for supporting the speaker assembly off a support surface.

5. The acoustic enclosure of claim 3, wherein the enclosure support includes a frame body and a frame base for placement on a support surface, the frame body coupled to the frame base and extending upwardly, the frame body coupled to the enclosure housing and spacing the speaker assembly from the support surface.

6. The acoustic enclosure of claim 5, wherein the frame body is a frame body made of a ductile material to absorb vibrational energy of the speaker assembly.

7. The sound box according to claim 5, wherein the rack body has a wiring cavity communicating with the mounting cavity, the control circuit board is electrically connected to the speaker assembly through an electrical conductor, and the electrical conductor is disposed through the wiring cavity.

8. The acoustic enclosure of claim 1, further comprising an outlet grille coupled to the enclosure housing and covering the speaker assembly.

9. The sound box according to claim 1, wherein a locking groove is formed on an inner wall of the sound mixing cavity along an edge of the connecting hole, the speaker assembly has an annular locking edge, the locking edge is received in the locking groove, and an outer surface of the locking edge is attached to a wall of the locking groove.

10. The sound box according to claim 9, further comprising a sealing ring sleeved on the clamping edge, wherein the sealing ring is located between an outer surface of the clamping edge and a groove wall of the clamping groove.