CN106170111B

CN106170111B - A kind of casing tuning formula audio amplifier

Info

Publication number: CN106170111B
Application number: CN201610859425.7A
Authority: CN
Inventors: 陈林
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-09-29
Filing date: 2016-09-29
Publication date: 2018-03-06
Anticipated expiration: 2036-09-29
Also published as: CN106170111A; WO2018058703A1

Abstract

The invention discloses a kind of casing tuning formula audio amplifier, including casing, and the wiring board being placed on loudspeaker and rear wall on the box house front side wall, at least one in the circumferential one week side wall of circulating loudspeaker is arranged to double-deck cavity wall on the casing, the double-deck cavity wall is formed by being separated out sound channel between internal chamber wall and outer chamber wall, the sound channel is arranged to opening port on the rear wall of the casing, at least one is offered on the internal chamber wall in the horizontal direction and crosses sound groove, a bearing is provided with the bottom wall of the casing, a screw mandrel is provided with the bearing, an advance and retreat sliding block is arranged with thread fiting mode on the screw mandrel, port before and after one is carried on the advance and retreat sliding block and the tuning frame of the loudspeaker week to the periphery can be coated on, the screw mandrel is connected with a drive mechanism.Realize that cheap mechanical tuning, cost, small power consumption, stable performance, playing quality effectively get a promotion for playing environment.

Description

A kind of casing tuning formula audio amplifier

Technical field

The present invention relates to sound-box device technical field, more specifically a kind of casing tuning formula audio amplifier.

Background technology

Audio amplifier is the terminal of whole sound system, and its effect is that audio electric energy is converted into corresponding acoustic energy, and its spoke Space is mapped to go.Its basic structure includes casing, and core component is placed in the loudspeaker of box house.

Because human ear is exactly to evaluate the fine or not most important standard of a sound system sound quality to the subjective feeling of sound, because This, it is believed that the performance height of audio amplifier is to play key effect to the playing quality of a sound system.So people think to the greatest extent All methods transformation audio amplifier is constructed to lift the playing quality of sound box system.

For example patent CN201010137035.1 describes a kind of audio amplifier, it includes housing and is contained in raising one's voice in housing Device and sound cup.Sound chamber is formed in the housing, the loudspeaker is used for outside the housing and the sound intracavitary sends sound, institute State and sender is offered on housing, the sound of the sound intracavitary is conducted to outside housing through the sender.The housing On be additionally provided with least one conduit, one of conduit connects the sender and sound chamber.The sound cup cover at it is described at least On one conduit, and the sound channel of bending is formed between the sender and sound chamber, to by the sound conduction of sound intracavitary To sender.The sound cup is provided with least two dividing plates, and at least two baffle interval is arranged in sound channel, is used for Sound channel is separated into the subchannel of at least two connection sound chambers and sender.Above-mentioned audio amplifier is by the way that sound channel is separated into At least two subchannels so that sound, which is limited in subchannel, to be resonated, so that audio amplifier sounding is more uniformly distributed.

However, the playing quality of sound box system is also closely bound up from different playing environments, such as the wall in some rooms Using Sound-proof material Soft Roll, then its absorption for middle bass is more, and sound can be excessively clean；The wall in some rooms for another example With ground using hard ceramic tile, then its absorption for middle bass is lacked, and most of to be reflected, tone color feels muddy.As above Two kinds of situations, which ultimately cause the effect that human ear experiences audio amplifier, just larger difference, and in a word, the playing quality of sound box system is poor.

The content of the invention

It is insufficient it is an object of the invention to make up more than prior art, there is provided a kind of mechanical tuning, cost are cheap, power consumption Small, stable performance, playing quality are directed to the casing tuning formula audio amplifier that playing environment effectively gets a promotion.

In order to reach object above, the present invention is achieved by the following technical solutions：A kind of casing tuning formula audio amplifier, bag Casing is included, and the wiring board being placed on loudspeaker and rear wall on the box house front side wall, it is characterised in that it is described At least one in the circumferential one week side wall of circulating loudspeaker is arranged to double-deck cavity wall on casing, and the double-deck cavity wall is by inner chamber Wall and outer chamber wall interval are separated out sound channel composition, and the sound channel is arranged to opening port on the rear wall of the casing, At least one is offered on the internal chamber wall in the horizontal direction and crosses sound groove, a bearing is provided with the bottom wall of the casing, it is described A screw mandrel is provided with bearing, the screw mandrel is arranged side by side with crossing sound groove, and one is arranged with thread fiting mode on the screw mandrel Advance and retreat sliding block, port before and after one is carried on the advance and retreat sliding block and can be coated on the tuning of the loudspeaker week to the periphery Frame, the screw mandrel are connected with a drive mechanism.

The present invention rotates tuning frame by screw mandrel rotating and is moved forward or rearward, so as to realize tuning frame to crossing sound The completely obscured of groove, fractional open, wide-open Regulation in all life process, with reach closed box to unpack or unpack to the gradual change of closed box Journey, how much to realize Mechanical course volume, when closed box, tonequality speed rhythm is fast, sound compacts, and the tonequality speed when unpacking Rhythm is slow, sound is loose.So as to preferably be directed to different playing environments, the adaptation acoustical quality of intermediate frequency and low frequency is adjusted, is realized Playing quality effectively gets a promotion for playing environment.

Preferably, wherein one end of the sound groove excessively is located at the position of side wall handing-over front side wall, but the sound groove excessively Whole length is no more than the 70% of whole internal chamber wall transverse width.

It is unreasonable more than in 70% structure, and tuning frame can not also reset.And opening sound slot length completely can cause Sound failure of adjustment, part masking sound must be stayed behind casing.

Preferably, the front and rear port depth of tuning frame was not more than the whole length of sound groove.

It crosses sound groove just close to Full-open state when tuning frame slides into bottom backward, and then plays masking toward front slide Cross the effect of sound groove.Tuning frame can make full use of length tuning, will not wasting space.It is not easy to influence tuning effect

Preferably, the sound groove of crossing is in in-line.

Cross sound groove shape design play be product style change, be it on the contrary for its shape and the relation of tuning The decisive role that area plays is some larger, even if sound channel is again greater than sound groove very little conversely speaking, then the effect of regulation Fruit is also small, and vice versa, so the area of section of sound channel is with crossing penetrating area and matching and be preferred for sound groove.

It is described to cross sound groove undulate as the alternative of such scheme.Ibid parse.

As the alternative of such scheme, the sound groove of crossing is in round shape.Ibid parse.

Preferably, being connected with some reinforcements between corresponding internal chamber wall and outer chamber wall, some reinforcements will be right If answering sound channel to be separated out arterial highway branches out sound passage, per pass branch sound channel correspondingly assigns at least one and is arranged at internal chamber wall On cross sound groove.

In order to ensure the intensity of double-deck cavity wall, reinforcement is set up in sound channel, ensures the intensity of whole casing.It is again Ensure that per pass branch sound channel plays tuning effect, so it is all indispensable to cross sound groove.

Preferably, the drive mechanism is a knob, the knob is arranged on the outer surface of the casing rear wall.

The scheme that knob carrys out drive screw rotation is pure craft, and advantage is that cost is cheap, is easy to repair, and shortcoming is that product is low Hold, be troublesome in poeration, laborious.

As the alternative of such scheme, the drive mechanism is a clockwise and anticlockwise motor, the clockwise and anticlockwise motor and line Rotating control button on the plate of road is connected.

The scheme that clockwise and anticlockwise motor carrys out drive screw rotation is mechanical automation, and advantage is that product is high-end and atmospheric, operation side Just, laborsaving, shortcoming is cost height.

Preferably, there are a pair of slide bars in the both sides of screw mandrel and screw mandrel same level parallel arrangement on bearing, enter back skating Block wears this to slide bar while wearing screw mandrel.

Moved more steadily in order that obtaining tuning and frameing shift, installation is relatively reliable, passes through a pair of slide bars and carries out Auxiliary supports.

Beneficial effect：The present invention is preferably directed to different playing environments, adjusts the adaptation acoustical quality of intermediate frequency and low frequency, real Existing playing quality effectively gets a promotion for playing environment.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the rearview of the present invention；

Fig. 3 is the structure sectional view of A-A in Fig. 2；

Fig. 4 is the structural representation that casing is only stayed in Fig. 3；

Fig. 5 is the structural representation that casing is removed in Fig. 3；

Fig. 6 is another structural representation that casing is removed in Fig. 3.

In figure：1- casings, 2- front windows, 3- loudspeakers, 4- rear hatches, 5- wiring boards, 6- power supply wiring mouths, 7- audios are defeated Outgoing interface, 8- audio input interfaces, 9- sound channels, 10- internal chamber walls, 11- outer chamber walls, 12- cross sound groove, 13- reinforcements, 14- Bearing, 15- screw mandrels, 16- advance and retreat sliding blocks, 17- tuning frames, 18- knobs, 19- slide bars, 20- clockwise and anticlockwise motors.

Embodiment

In order that technological means, creation characteristic and the reached purpose of the present invention are readily apparent from understanding, below in conjunction with specific reality Apply example and the present invention is expanded on further.

Embodiment 1：As depicted in figs. 1 and 2, a kind of casing tuning formula audio amplifier, includes the casing 1 of solid wood material, before casing 1 The front window 2 of an installation loudspeaker 3 is provided with side wall, loudspeaker 3 is accommodated in the inside of casing 1 in horizontal interposition high up in the air Put, the rear hatch 4 of an installation wiring board 5 is provided with the rear wall of casing 1, wiring board 5 exposes pacifies side by side on the part outside casing 1 Equipped with power supply wiring mouth 6, audio output interface 7 and audio input interface 8.

As shown in Figure 3 and Figure 4, on casing 1 in the circumferential one week side wall of circulating loudspeaker 3（Removing front-rear side walls needs cloth Loudspeaker and wiring board are put, and bottom wall is covered by ground）：Wherein upper side wall and two side walls are disposed as double-deck cavity wall, institute There is double-deck cavity wall to be separated out sound channel 9 by internal chamber wall 10 and outer chamber wall 11 to form, all sound channels 9 are in casing 1 Opening port is disposed as on rear wall, offers a plurality of sound groove excessively being arranged side by side on all internal chamber walls 10 in the horizontal direction 12, four are arranged wherein in the internal chamber wall 10 of upper side wall, five are respectively arranged in the internal chamber wall 10 of two side walls.Cross its of sound groove 12 Middle one end is located at the position of side wall handing-over front side wall, but crosses 12 whole length of sound groove and be no more than the whole transverse width of internal chamber wall 10 70%, here preferably 50%, it is in in-line to cross sound groove 12.

A plurality of reinforcement 13 is connected between internal chamber wall 10 and outer chamber wall 11 corresponding to per face, specific reinforcement 13 is several Suitably arranged according to the area of double-deck cavity wall, preferably two here, if corresponding sound channel 9 is separated out arterial highway point by these reinforcements 13 Branch sound channel, per pass branch sound channel correspondingly at least assign to a sound groove 12 excessively being arranged on internal chamber wall 10, specific mistake The area for branch's sound channel that the several evidences of corresponding bar of sound groove 12 are separated out suitably is arranged.

As shown in figure 5, be provided with a bearing 14 on the bottom wall of casing 1, be provided with a screw mandrel 15 on bearing 14, screw mandrel 15 with Cross 12 parallel arrangement of sound groove, an advance and retreat sliding block 16 is arranged with thread fiting mode on screw mandrel 15, in screw mandrel 15 on bearing 14 Both sides and the same level of screw mandrel 15 parallel arrangement have a pair of slide bars 19, advance and retreat sliding block 16 wears this while wearing screw mandrel 15 To slide bar 19.Port and the tuning frame 17 that loudspeaker can be coated on 3 weeks to the periphery before and after one are carried on advance and retreat sliding block 16, is adjusted The front and rear port depth of sound frame 17 was less than the whole length of sound groove 12, and the front and rear port of tuning frame 17 is respectively facing front face with after Avoid.Screw mandrel 15 is connected with a drive mechanism.Drive mechanism is a knob 18, and knob 18 is arranged at the appearance of the rear wall of casing 1 On face.

Embodiment 2：Cross the undulate of sound groove 12.Remaining is the same as embodiment 1.

Embodiment 3：It is in round shape to cross sound groove 12.Remaining is the same as embodiment 1.

Embodiment 4：As shown in fig. 6, drive mechanism is a clockwise and anticlockwise motor 20, on clockwise and anticlockwise motor 20 and wiring board 5 Rotating control button is connected（Not shown in figure）.Remaining is the same as embodiment 1.

Embodiment 5：On casing 1 in the circumferential one week side wall of circulating loudspeaker 3：Only upper side wall is arranged to double-deck cavity wall.Its Remaining same embodiment 1.

Use：The present invention rotates tuning frame by screw mandrel rotating and is moved forward or rearward, so as to realize tuning frame To crossing the completely obscured of sound groove, fractional open, wide-open Regulation in all life process, closed box is arrived to unpacking or unpacking to reach closed box Progressive formation, how much to realize Mechanical course volume, when closed box, tonequality speed rhythm is fast, sound compacts, and the sound when unpacking Matter speed rhythm is slow, sound is loose.

Claims

1. a kind of casing tuning formula audio amplifier, including casing, and the loudspeaker and rear side being placed on the box house front side wall Wiring board on wall, it is characterised in that at least one in the circumferential one week side wall of circulating loudspeaker is set on the casing For double-deck cavity wall, the double-deck cavity wall is separated out sound channel by internal chamber wall and outer chamber wall interval and formed, and the sound channel is in institute State and opening port is arranged on the rear wall of casing, offer at least one on the internal chamber wall in the horizontal direction and cross sound groove, it is described A bearing is provided with the bottom wall of casing, a screw mandrel is provided with the bearing, the screw mandrel is arranged side by side with crossing sound groove, described An advance and retreat sliding block is arranged with thread fiting mode on screw mandrel, port and can be coated before and after carrying one on the advance and retreat sliding block In the tuning frame of the loudspeaker week to the periphery, the screw mandrel is connected with a drive mechanism.

2. casing tuning formula audio amplifier according to claim 1, it is characterised in that described wherein one end for crossing sound groove is positioned at side Side wall joins the position of front side wall, but the whole length of sound groove excessively is no more than the 70% of whole internal chamber wall transverse width.

3. casing tuning formula audio amplifier according to claim 2, it is characterised in that the front and rear port depth of tuning frame is not more than Cross the whole length of sound groove.

4. the casing tuning formula audio amplifier according to Claims 2 or 3, it is characterised in that the sound groove of crossing is in in-line.

5. the casing tuning formula audio amplifier according to Claims 2 or 3, it is characterised in that described to cross sound groove undulate.

6. the casing tuning formula audio amplifier according to Claims 2 or 3, it is characterised in that the sound groove of crossing is in round shape.

7. the casing tuning formula audio amplifier according to claim 1 or 2 or 3, it is characterised in that corresponding internal chamber wall and outer chamber wall Between be connected with some reinforcements, if corresponding sound channel is separated out arterial highway by some reinforcements branches out sound passage, per pass Branch's sound channel correspondingly assigns at least one sound groove excessively being arranged on internal chamber wall.

8. casing tuning formula audio amplifier according to claim 1, it is characterised in that the drive mechanism is a knob, described Knob is arranged on the outer surface of the casing rear wall.

9. casing tuning formula audio amplifier according to claim 1, it is characterised in that the drive mechanism is rotating electricity Machine, the clockwise and anticlockwise motor are connected with the rotating control button on wiring board.

10. the casing tuning formula audio amplifier according to claim 1 or 8 or 9, it is characterised in that in the both sides of screw mandrel on bearing There are a pair of slide bars with screw mandrel same level parallel arrangement, advance and retreat sliding block wears this to slide bar while wearing screw mandrel.