CN209089159U - A kind of plastics high-fidelity combination sound box - Google Patents

A kind of plastics high-fidelity combination sound box Download PDF

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Publication number
CN209089159U
CN209089159U CN201821621441.3U CN201821621441U CN209089159U CN 209089159 U CN209089159 U CN 209089159U CN 201821621441 U CN201821621441 U CN 201821621441U CN 209089159 U CN209089159 U CN 209089159U
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China
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front cover
rear cover
partition
cover
plate
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CN201821621441.3U
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Chinese (zh)
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李晗
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CHANGZHOU MAXTRONICS ELECTRONICS Co Ltd
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CHANGZHOU MAXTRONICS ELECTRONICS Co Ltd
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Abstract

The utility model relates to a kind of plastics high-fidelity combination sound boxes.The combination sound box includes cabinet, woofer and partition.Cabinet is equipped with several reinforcing ribs, and cabinet is the cabinet of cuboid.Its main feature is that: it further include phase-reversing tube, Squawker and high pitch loudspeaker.Cabinet is covered and is formed after being fixed on by front cover from front.Front cover and rear cover are integrated through injection molding part.The intermediate position of cabinet is arranged in partition, and forms top sound chamber and lower part sound chamber, so that the combination sound box is divided into speaker top and speaker lower part as boundary using partition.High pitch loudspeaker and Squawker are located in the sound chamber of top.Woofer and phase-reversing tube are located in the sound chamber of lower part.The small volume of the combination sound box of the utility model, and to mould Dai Mu, top sound chamber is not connected as separator using partition with lower part sound chamber, and lower part sound chamber is independent bass sound chamber, to realize the independence of audio bass, guarantees the sound quality of speaker.

Description

A kind of plastics high-fidelity combination sound box
Technical field
The utility model relates to a kind of speaker, especially a kind of cabinet is the high-fidelity combination sound box of plastic box.
Background technique
Currently, the cabinet of most of speaker is wooden cabinet, the destruction of the forest reserves is on the one hand accelerated, on the other hand wood The technical process of material processing is longer, and there are also the deformation of timber, the service life of wooden cabinet is not grown.Meanwhile most combination at present Speaker is all that high pitch, middle pitch, woofer and circuit board etc. are arranged in the same cabinet, although this arrangement can With ease of assembly and processing, but high pitch, middle pitch, woofer keep the audio of each loudspeaker mutual in the same cabinet Interference, the acoustics of especially basso are a greater impact.In order to reach preferable acoustics, speaker, which is usually selected, to be divided Body formula structure, structure generally comprises power amplifier and at least two loudspeaker box, but its split type structure volume is larger, causes Carry trouble.In addition, most of sound equipment is that speaker is enable to generate stronger bass effect, the sound chamber of cabinet is frequently with paraphase Structure or passive radiator structure type are designed it.But when designing speaker using both modes, sound box Size is generally all bigger, and if it is desired to speaker is made to have stronger bass effect, it is also necessary to increase the size of speaker again； So such speaker not only can make placement location be very limited because box sizes are too big in the family use, Er Qietong It often also will affect the aesthetics of furnishings.
Application No. is 201621102154.2, hereinafter referred to as document 1 by Chinese patent literature CN206136246U() it discloses A kind of combination sound box.The speaker of document 1 includes case ontology and the loudspeaker, phase-reversing tube and the wiring that are arranged on the case ontology Column.The phase-reversing tube and loudspeaker is located at the opposite sides of case ontology.The case ontology includes being bonded to each other to be assembled in one The metal plate and wood based panel risen.Two speaker chambers of this combination sound box are ganged up, and respective audio interferes with each other, and are influenced The voice effect of combination sound box.
Application No. is 201710377728.X, hereinafter referred to as document 2 by Chinese patent literature CN107750029A() it discloses A kind of sound-box device.The sound-box device of document 2 includes cabinet 100, and cabinet 100 includes the first cavity and the second cavity and isolation The partition 130 of first cavity and the second cavity.Its first cavity is for accommodating loudspeaker unit 400 and air hose mouth 113, the second cavity For accommodating control circuit, and document 2 thinks that control circuit board is integrated in low frequency paraphase chamber by the sound-box device of the prior art In vivo, the leakproofness of low frequency paraphase cavity is seriously affected.Sound-box device further includes being set to cabinet two opposite sides for seal case The first lid 720 and the second lid 710.It is respectively equipped with first seal 132 in partition free end two sides, in the first lid 720 are equipped with second seal 723 compatible with each first seal 132.The sound-box device of document 2, due to using upper First seal and second seal are stated, there is better error tolerance compared with right angle transition, effectively prevent because of cabinet shape The assembly gap that position error generates, to obtain preferably acoustical quality.Show that the speaker is set in the Figure of description of document 2 It is standby only with single loudspeaker, to achieve the effect that combination audio it is necessary to sound-box device as having at least two, carry fiber crops It is tired.In addition, though document 2 mentions its cabinet equipped with reinforcing rib, but do not refer to how reinforcing rib is specifically arranged, undisclosed case yet Body is using which kind of material.
Application No. is 201420573772.X, hereinafter referred to as document 3 by 204206418 U(of Chinese patent literature CN) it is open A kind of hermetically sealed full range Hi-Fi sound-box.The speaker of document 3 includes cabinet, the first passive loudspeaker, the second passive loudspeaker, first Active loudspeaker and the second active loudspeaker.Cabinet has inner chamber body, and cabinet is equipped with each speaker hole.First passive loudspeaker, the second quilt Dynamic loudspeaker, the first active loudspeaker and the second active loudspeaker are arranged on cabinet by fastener.First passive loudspeaker and second Passive loudspeaker are coaxially set, and the first passive loudspeaker and the second passive loudspeaker are back to setting.First active loudspeaker and the second master Dynamic loudspeaker are located at the two sides of the second passive loudspeaker, and the axis and the second passive loudspeaker of the first active loudspeaker and the second active loudspeaker In parallel.The inner chamber body of cabinet cabinet each speaker hole by the first passive loudspeaker, the second passive loudspeaker, the first active loudspeaker, Two active loudspeaker form the space of a totally-enclosed after blocking.The closer of air compression can be passed through vibration by this speaker The sound that principle, 2 active loudspeaker and 2 passive loudspeaker issue is stronger, more true to nature, in high, normal, basic three frequency range audios Performance is preferable, has taken into account low middle high three frequency ranges.But this speaker by it is high, in low three kinds of loudspeaker be arranged in the same space In, interference is formd each other.
Application No. is 97239562.8, hereinafter referred to as document 4 by Chinese patent literature CN2290962Y() disclose a kind of surpass Super Bass Loudspeaker Enclosure.The speaker of document 4 includes the loudspeaker and corresponding frequency divider of sound box, different audios.Its main feature is that There is a partition in sound box.Cabinet is thoroughly divided into two parts by the partition, a part of identical as existing loudspeaker box structure, separately A part is subwoofer receiver.The design of this composite structure is suitable for existing main sound box, secondary speaker and surround speaker, combination Subwoofer can be box big gun, be also possible to cartridge type big gun.Its it is attached it is shown in Fig. 2 be that cartridge type big gun structure and woofer mouth are right The subwoofer of mouth structure.It can be seen that its partition is located at the one third of the height of entire cabinet, subwoofer by Fig. 2 of document 4 Receiver then occupies 2/3rds of entire box height, and is also divided into two parts up and down, and top is equipped with paraphase hole, lower part Sound hole equipped with receiver.The speaker of this structure, so that shared volume is larger.
Utility model content
The purpose of the utility model is to overcome current combination sound box there are the shortcomings that, provide a kind of small volume, sound quality compared with Good combination sound box.The material of the cabinet of the combination sound box do not have to timber and use plastics, especially with reinforced polypropylene material make For the material of cabinet, independent bass sound chamber is also set up, the woofer setting of sound equipment is intracavitary in independent bass sound, it is low Sound sound chamber is separated with other sound chambers, to realize the independence of audio bass, guarantees the sound quality of speaker.
To achieve the goals above, the utility model adopts the following technical solution: a kind of plastics height of the utility model is protected True combination sound box is the combination sound box of inverted phase type, including cabinet, woofer and partition.The cabinet is equipped with several Reinforcing rib.The cabinet is the cabinet of cuboid.It is structurally characterized in that:
The combination sound box further includes phase-reversing tube, Squawker and high pitch loudspeaker.The woofer has 1 A, Squawker has 1 to 3, and high pitch loudspeaker has 1 to 3.The cabinet is fixedly mounted on rear cover from front by front cover Above formed.The front cover and rear cover is integrated through injection molding part.The rear cover includes the rear cover equipped with cuboid inner cavity Matrix and several rear cover reinforcing ribs.The front cover includes that the front cover matrix for being equipped with cuboid inner cavity and several front covers add Strengthening tendons, and the size and shape of front cover matrix is corresponding with rear cover matrix.The front cover reinforcing rib and rear cover reinforcing rib belongs to In the reinforcing rib being arranged on cabinet.
The partition is horizontally disposed, and is located at the intermediate position of cabinet, and forms the top sound chamber for being located at cabinet top Be located at lower box lower part sound chamber so that the combination sound box is divided into speaker top and speaker as boundary using partition Lower part.The woofer and phase-reversing tube is arranged forward and divides to be installed the front cover up and down, and is respectively positioned on lower part sound chamber In.The high pitch loudspeaker and Squawker is arranged forward and divides directly or indirectly to be fixedly mounted on front cover up and down, And it is respectively positioned in the sound chamber of top.
Above-mentioned plastics high-fidelity combination sound box, further includes speaker base.The Squawker has 2, and a point left side It is right to be arranged on sustained height.The high pitch loudspeaker has 1.The partition is located at the portion on the upper side at the intermediate position of cabinet Position.
The front cover matrix includes front cover shell.Front cover shell have cuboid inner cavity, and by foreboard, left plate, right panel, Upper plate and lower plate surround.Front cover further includes 1 bugle body part being successively set on foreboard from top to bottom, 3 loudspeaker peaces Fill seat and 1 echo seat.3 loudspeaker mounting bases are 1 the first mounting base and 2 the second mounting bases.2 second peaces Cartridge seat divides left and right settings in sustained height.First mounting base is located at the lower section of 2 the second mounting bases, and is located at bugle sheet The underface in body portion.
The bugle body part and the second mounting base is respectively positioned on speaker top, and bugle body part is pacified in 2 second Fill the top of the middle of seat.First mounting base and echo seat are respectively positioned on speaker lower part, and echo seat is located at the first mounting base Underface.The bugle body part is the horn mouth that main body is in semielliptical hull shape substantially, and front openings are ellipse, rear side Equipped with circular aditus laryngis, and the long axis edge left and right of front openings, to being horizontally disposed with, short axle is vertically arranged to vertical.Described Short axle is located on the sagittal central vertical guide of front cover.
The speaker base is by fastener from the bugle body part that rear is connected to front cover.The tweeter Device is fixedly mounted on speaker base by fastener from rear, to be indirectly fixed on front cover.
2 the second mounting bases of the front cover are arranged symmetrically relative to the sagittal central vertical guide of front cover.In each Sound loudspeaker is mounted in corresponding 1 the second mounting base.
The sagittal central axial line of first mounting base of the front cover is located at the sagittal central vertical guide of front cover On.Woofer is fixedly mounted in the first mounting base by fastener from rear.The sagittal center line position of echo seat In on the sagittal central vertical guide of front cover.Phase-reversing tube is fixedly mounted on echo seat by fastener from rear, thus structure At paraphase channel.
In above-mentioned plastics high-fidelity combination sound box, the front openings of the ellipse of the bugle body part of the front cover Major diameter d3 is 200 mm to 230 mm.The minor axis diameter d4 is 90mm to 110mm.The larynx of the bugle body part The diameter d5 of mouth is 23 mm to 30 mm.The sagittal distance namely bugle depth e2 of bugle body part are 50mm to 60 mm。
In above-mentioned plastics high-fidelity combination sound box, the rear cover matrix includes rear casing.The rear casing has The inner cavity of cuboid, and surrounded by back side panel, left plate, right side plate, epipleural and lower side panel.It offers and is located on back side panel The rear window of upper part and battery case seated connection oral area position positioned at its underpart.
The rear cover reinforcing rib includes the vertical reinforcing rib of horizontally disposed horizontal stiffener and vertical setting.Each level Successively interval setting, including continous way horizontal stiffener and intermittent type horizontal stiffener in the up-down direction between reinforcing rib.Institute The continous way horizontal stiffener stated refers to the horizontal stiffener being continuously arranged on rear cover matrix, including simultaneously Horizontal stiffener on the inner wall of the inner wall of the left plate of rear cover matrix, the inner wall of back side panel and right side plate is set.Described Intermittent type horizontal stiffener refers to the left side that rear cover matrix is discontinuously arranged in due to the blocking because of rear window or battery case seated connection oral area position On a part of inner wall of whole inner walls, back side panel of side plate and whole inner walls of right side plate, namely in intermittent manner setting in rear cover Horizontal stiffener on matrix.
Each vertical reinforcing rib is arranged along front and back to vertical, and between each vertical reinforcing rib between left and right is upward successively Every setting, and vertical reinforcing rib is arranged on the inner wall of the lower side panel of rear cover matrix or is arranged in the epipleural of rear cover matrix Upper side on.
The front cover reinforcing rib includes the front cover horizontal stiffener being arranged on the inner wall of left plate and right panel, further includes setting Set the front cover vertical reinforcing rib on upper plate and the inner wall of lower plate.Between each front cover horizontal stiffener of front cover in the up-down direction Successively interval setting, and the same height is in the corresponding horizontal stiffener of rear cover.Each front cover vertical reinforcing rib of front cover Between in the lateral direction successively interval setting.
In above-mentioned plastics high-fidelity combination sound box, the basic thickness q of the rear cover matrix namely rear casing it is each Side plate with a thickness of 4mm to 6 mm.The thickness n of rear cover reinforcing rib is 1mm to 2 mm.Adjacent two rear cover reinforcing ribs of rear cover Spacing m be 20 to 30 mm.Injection molding radius of corner r between each rear cover reinforcing rib and rear cover matrix is 1 mm to 2 mm.Rear cover The front end of reinforcing rib is extremely 4mm to 6 mm with the joint distance i of front cover.The width h1 of rear cover reinforcing rib is 8mm to 12 First meaning of mm, width h1 refer to the inner end of the reinforcing rib at the left plate, right side plate and lower side panel of rear cover matrix with The distance between rear cover matrix namely its along the rear cover reinforcing rib of introversion and extroversion width.The introversion and extroversion, for left plate and For reinforcing rib at right side plate be left and right to, for the reinforcing rib at lower side panel be upward and downward.
Vertical reinforcing rib set by the upper side of the epipleural of the rear cover matrix is upside reinforcing rib upward, rear cover Second meaning of the width h1 of reinforcing rib 1-1 refers to distance of the outer end of upside reinforcing rib upward to rear cover matrix, Ye Jiqi Along the width of introversion and extroversion, specifically upside upward reinforcing rib vertically to distance.
Each plate of front left and right upper and lower plates of the basic thickness q1 namely front cover shell of the front cover matrix with a thickness of 4 mm extremely 6 mm.The thickness n1 of the front cover reinforcing rib is 1mm to 2mm.The spacing m1 of adjacent two reinforcing ribs of front cover is 20 mm To 30 mm.Injection molding radius of corner r1 between front cover reinforcing rib and front cover matrix is 1 mm to 2mm.The rear end of front cover reinforcing rib It is extremely 4mm to 6 mm with the joint distance i1 of rear cover.The width h2 of front cover reinforcing rib is 8mm to 12 mm.
Above-mentioned plastics high-fidelity combination sound box, further includes silica gel foamed strip.The rear casing of the rear cover matrix it is upper It is equipped with the groove facing forward that is open on the front end position of lower left side plate, and collectively forms the annular groove of rear cover.After described The section of the annular groove of lid is in isosceles trapezoid, and the front side width c of annular groove is greater than the bottom width c1 of annular groove.It is described Bottom width be annular groove rear side width.
The thickness ratio towards rear is equipped on the rear end position of the plate up and down of the front cover shell of the front cover matrix Respective plate thickness wants thin protrusion, and collectively forms the ring rib of front cover.The cross section of the ring rib of the front cover is in Isosceles trapezoid, the back side width e of the extending area backward of ring rib are less than the front width e1 of ring rib.
The taper of waist of annular groove of taper and rear cover of the waist of the ring rib is identical, and the two forms taper Cooperation.The silica gel foamed strip is arranged in the annular groove of rear cover.When front cover is recessed by the annular of its ring rib and rear cover When the mutual taper fit of slot, the rear end of the ring rib of front cover and silica gel foamed strip Elastic Contact.
In above-mentioned plastics high-fidelity combination sound box, the front side width c of the annular groove of the rear cover be 2.3mm extremely 3mm.The bottom width c1 of annular groove is 2mm to 2.7mm.The sagittal distance of annular groove namely the depth d of counterbore are 2.5mm to 3mm.
The back side width e of the ring rib is 1.7mm to 2.4mm.The bottom width e1 of ring rib be 2mm extremely 2.7mm.The front and back of ring rib to distance f be 1.8mm to 2.3mm.
In above-mentioned plastics high-fidelity combination sound box, the rear cover further include 2 to 3 pieces be it is horizontally disposed, be connected to On the inner wall of the rear casing of rear cover matrix and in the up-down direction successively adjacent installing web plate, to form 1 to 2 partition Pit.Each installing web plate is respectively positioned between the rear window of the back side panel of rear cover matrix and battery case seated connection oral area position.
The front cover further includes quantity front cover installing web plate identical with the quantity of the installing web plate of rear cover, each front cover peace Dress gusset is horizontally disposed with, is on the inner wall of the front cover shell that is connected to front cover matrix and successively adjacent in the up-down direction, thus shape At slot before the partition of the quantity few 1 than front cover installing web plate.Namely the front cover installing web plate quantity and rear cover installation The quantity of gusset is identical, and the quantity for being formed by slot before partition is also identical as the quantity of partition pit of rear cover.Each front cover installation Gusset is located between the second mounting base and the first mounting base of front cover.
Position, height b and the width a of upward and downward before the partition of the front cover where slot and the partition pit institute of rear cover The position of upward and downward, height b and width a it is consistent.When being covered after front cover is mounted on and forming cabinet, then simultaneously shape At the partition mounting groove of respective numbers.
The shape of the partition is corresponding with the partition mounting groove of cabinet.Partition has plate main body and is located at plate body peripheral edge Circumferential protruding portion.The outer circumferential position of partition is that the upper surface at the relatively thin position of plate thickness namely the position will be lower than plate master The upper surface of body, and the lower surface at the position is higher than the lower surface of plate main body, to form the circumferential protruding portion of partition.Plate master The center of body is equipped with threading hole.In use, steeping continuous cylinder by EVA fills the threading hole.
One layer of self-adhesion EVA double-sided adhesive belt is covered in the upper and lower surface of the circumferential protruding portion of the partition.Work as partition When by the partition mounting groove of its outer circumferential position insertion cabinet, partition is then by its circumferential protruding portion by covering following table thereon Self-adhesion EVA double-sided adhesive belt on face is adhesively fixed with the corresponding installing web plate of front and rear covers, to form between each other close Envelope.
In above-mentioned plastics high-fidelity combination sound box, the height b of the partition pit is 8.5 mm to 9.5mm.Partition Groove width a is 15 mm to 25mm afterwards.The thickness h of the plate main body of the partition and the height b of partition mounting groove are corresponding.Every The plate body thickness h of plate is 8.5mm to 9.5mm, and the thickness h 3 of the circumferential protruding portion of partition is 8.2mm to 8.7mm, and be less than every The plate body thickness 0.4mm to 0.8mm of plate.The width g of the circumferential protruding portion of partition is 15mm to 25mm.The diameter of threading hole is 10mm to 15mm.The self-adhesion EVA double-sided adhesive belt with a thickness of 0.5mm to 1 mm.
In above-mentioned plastics high-fidelity combination sound box, the rear cover further includes battery cassette holder.The rear cover matrix is also Including positioning column after several.Battery cassette holder is connected in the inner cavity of rear cover body, and end opening is connected to back side panel thereafter Battery case seated connection oral area position on.Positioning column is arranged along the front-back direction after each, and one close to rear casing of each rear positioning column Side be directly connected to or corresponding one block of side plate for being connected in the side plate of the left and right of rear casing or more by dowel on, it is each after positioning The rear portion of column is connected on the back side panel of rear casing.Wherein, it is connected to positioning column after each on left plate and is connected to right side plate On rear positioning column be arranged in pairs, and the two is located at sustained height, and is known as the rear positioning column that left and right is arranged in pairs.Positioning after each The center of the front of column is equipped with a counterbore.
The front cover matrix further includes several prelocalization columns.The quantity of the prelocalization column and the number of rear positioning column Measure identical, and the location of each prelocalization column is corresponding with the location of positioning column after corresponding 1, and each prelocalization column Diameter d2 be slightly less than rear positioning column corresponding thereto counterbore diameter d1.
When covering after the front cover is mounted on, each prelocalization column of front cover protrudes into the corresponding of rear cover by its front end position After 1 in the counterbore of positioning column, and the two cooperates.
Continous way horizontal stiffener in the rear cover reinforcing rib further includes the rear positioning that left and right is arranged in and is arranged in pairs Horizontal stiffener on the inside of the left and right sides of column and the inner wall of back side panel.The intermittent type horizontal stiffener further includes setting Set the horizontal stiffener on the inside of left and right sides for the rear positioning column that left and right is arranged in pairs and a part of inner wall of back side panel.
The utility model has the effect of positive: (1) combination sound box of the utility model is a kind of inverted phase type combination sound box, Compared with document 2, material used by the cabinet of the utility model is plastics.Including polyvinyl chloride, polystyrene, poly- second Alkene, polypropylene, ABS and corresponding reinforced plastics, preferably reinforced polypropylene.The cabinet of the utility model is used with moulding Dai Mu Respectively the front cover of integrated injection forming and rear cover and constitute the cabinet of combination sound box, and reinforcing rib is integrally formed in injection molding With a thickness of on 5 millimeters or so of rear cover matrix and front cover matrix, reach the rigidity of rear cover and front cover and intensity substantially The standard of wooden acoustic box.Timber, and energy one-time injection molding is not only greatly saved, simplifies processing technology.(2) when this When the plastics that the rear cover and front cover of the cabinet of utility model use is reinforced polypropylene, which is glass fibre Content be 20wt% to 35wt% polypropylene plastics, thus ensure that the tensile strength of moulding, heat resistance, it is water-fast it is vapor permeability, Chemical corrosion resistance and creep resistant etc..When the calcium carbonate of 18wt% to 22wt% is added as filler on this basis, then may be used The shock resistance of material is improved, and reduces cost.(3) the top sound chamber of the combination sound box of the utility model and lower part sound chamber point It is setting up and down, and be substantially isolated.The surrounding edge of partition is arranged with the threading hole of self-adhesion EVA double-sided adhesive belt and partition The EVA at place steeps continuous cylinder filling, so that top sound chamber and lower part sound chamber close to completely isolated, are conducive to the mutual of corresponding audio It does not interfere, it is ensured that the independence of audio bass.(4) rear cover of the combination sound box of the utility model is equipped with annular groove, and preceding Lid is then equipped with corresponding ring rib, and silica gel foamed strip is arranged in the joint of rear cover and front cover, and makes sound chamber Globality is improved, and is conducive to the resonance of sound, especially ensure that the sound quality of bass sound equipment.
Detailed description of the invention
Fig. 1 is a kind of stereoscopic schematic diagram using the stereo set of the combination sound box of the utility model.
Stereoscopic schematic diagram when Fig. 2-1 is from the rear of Fig. 1.
Fig. 2-2 is the perspective exploded view of Fig. 2-1.
Fig. 2-3 is the perspective exploded view of Fig. 1.
Fig. 3 is the schematic diagram of the cabinet in Fig. 1.
Fig. 4 is the schematic diagram of the rear cover in Fig. 3.
Fig. 5 is from the front view of rear cover when the C of Fig. 4 is from.
Fig. 6 is the D-D diagrammatic cross-section of Fig. 5.
Fig. 7 is the three-dimensional enlarged diagram of the front cover in Fig. 2-2, and observation is read as the slightly biased right side on the direction of Fig. 2-2.
Fig. 8 is from the front view of front cover when the F of Fig. 7 is from.
Fig. 9 is the E-E diagrammatic cross-section in Fig. 8.
Figure 10 is the partial enlargement diagram at the J in Fig. 4.
Figure 11 is the partial enlargement diagram at the K in Fig. 7.
Figure 12 is the partial enlargement diagram at the M in Fig. 4.
Figure 13 is that the A-A at annular groove shown in Figure 12 rotates enlarged diagram.
Figure 14 is the partial enlargement diagram at the N in Fig. 7.
Figure 15 is that the B-B at ring rib shown in Figure 14 rotates enlarged diagram.
Figure 16 is the stereoscopic schematic diagram of the amplification of the partition in Fig. 2-3.
Figure 17 is the partial enlargement diagram at the P in Fig. 4.
Figure 18 is that the Q-Q at reinforcing rib shown in Figure 17 rotates enlarged diagram.
Figure 19 is the partial enlargement diagram at the R in Fig. 7.
Figure 20 is that the S-S at front cover reinforcing rib shown in Figure 19 rotates enlarged diagram.
Figure 21 is the partial enlargement diagram at the G in Fig. 4.
Figure 22 is the partial enlargement diagram at H shown in fig. 7.
Figure 23 is that the W-W in the circumferential projection portion of partition shown in Figure 16 rotates enlarged diagram.
Figure 24 is that front cover shown in Fig. 3 is put by the V-V rotation mutually chimeric with the annular groove of rear cover of its ring rib Big schematic diagram.
It is marked in above-mentioned attached drawing as follows: rear cover 1, rear cover reinforcing rib 1-1, horizontal stiffener 1-1a, vertical reinforcing rib 1- 1b, the front end 1-1-1 of the reinforcing rib of rear cover, annular groove 1-2, the joint surface 1-3 of rear cover and front cover, top installing frame 1-4, Fixed column 1-4-1, battery cassette holder 1-5, partition gusset 1-6, partition pit 1-7, rear positioning column 1-8, the front 1- of rear positioning column 8-1, counterbore 1-8-2, rear window 1-9, back side panel 1-11, left plate 1-12, right side plate 1-13, epipleural 1-14, lower side panel 1-15, Lower part sound chamber 2, top sound chamber 3, console 4, mounting hole 4-1, acoustics circuit device 41, control panel 42, phase-reversing tube 5, loudspeaking Device seat 6, woofer 7, Squawker 8, high pitch loudspeaker 9, silica gel foamed strip 10, partition 11, circumferential protruding portion 11-1, Threading hole 11-2, front cover 12, front cover reinforcing rib 12-1, front cover horizontal stiffener 12-1a, front cover vertical reinforcing rib 12-1b, front cover The rear end 12-1-1 of reinforcing rib, ring rib 12-2, prelocalization column 12-3, front cover installing web plate 12-4, slot 12-5 before partition, number Angle body part 12-6, the first mounting base 12-8, the second mounting base 12-9, echo seat 12-10, foreboard 12-11, left plate 12-12, it is right Plate 12-13, upper plate 12-14, lower plate 12-15, power board 14, power amplification circuit 141, battery case 15, battery case cover board 151, Cabinet 100, EVA double-sided adhesive belt 111 install groove width a, install groove height b, the front side width c of annular groove, annular groove Bottom width c1, annular groove depth d, the diameter d1 of counterbore, the diameter d2 of prelocalization column, major diameter d3, minor axis diameter D4, the diameter d5 of aditus laryngis, back side width e, bottom width e1, bugle depth e2, front and back to distance f, circumferential protruding portion width g, Plate body thickness h, rear cover reinforcing rib width h1, front cover reinforcing rib width h2, circumferential protruding portion thickness h 3, before rear cover reinforcing rib End is to joint distance i with front cover, the rear end of front cover reinforcing rib to the joint distance i1 with rear cover, rear cover it is adjacent The spacing m of two reinforcing ribs, the spacing m1 of adjacent two reinforcing ribs of front cover, rear cover Rib Thickness n, front cover Rib Thickness N1, the basic thickness q of rear cover matrix, the basic thickness q1 of front cover matrix.
The utility model is described in further detail below in conjunction with attached drawing.The utility model is with the side up and down of Fig. 8 Position is positioned, and, as front, will deviate from the direction of Fig. 8 as rear in face of the direction of Fig. 8.
Specific embodiment
(embodiment 1)
See Fig. 1, Fig. 2-1, Fig. 2-2, Fig. 2-3 and Fig. 3, the plastics high-fidelity combination sound box of the present embodiment, including cabinet 100, phase-reversing tube 5, speaker base 6, woofer 7, Squawker 8, high pitch loudspeaker 9, silica gel foamed strip 10 and partition 11.Woofer 7 has 1, and Squawker 8 has 2, and high pitch loudspeaker 9 has 1.
See that Fig. 2-2, Fig. 2-3 and Fig. 3, the cabinet 100 are the cabinets of cuboid.The cabinet 100 is equipped with Several reinforcing ribs.The cabinet 100 is fixedly mounted on rear cover 1 from front by fastener (being not drawn into figure) by front cover 12 Above formed.The rear cover 1 and front cover 12 is integrated through injection molding part.The material of the rear cover 1 and front cover 12 is enhancing Polypropylene material has preferably added the reinforced polypropylene of 20% calcium carbonate.The reinforced polypropylene is limited by magnificent plastics new in Qingdao Company manufactures.
See fig. 4 to fig. 6, rear cover 1 includes the rear cover matrix equipped with cuboid inner cavity, if rear cover matrix include rear casing and Positioning column 1-8 after dry root.Rear cover 1 further includes several reinforcing rib 1-1, annular groove 1-2, top installing frame 1-4, battery cassette holder 1-5 and installing web plate 1-6.
Front cover 12 includes the front cover matrix equipped with rectangular body inner cavity, and the size and shape of front cover matrix and rear cover matrix It is corresponding.Front cover matrix includes front cover shell and prelocalization column 12-3.Front cover 12 further includes front cover reinforcing rib 12-1, ring rib 12-2, front cover installing web plate 12-4, bugle body part 12-6, loudspeaker mounting base and echo seat 12-10.
See that Fig. 2-2 and Fig. 2-3, the partition 11 are mounted in cabinet 100, and is located at the intermediate position of cabinet 100, it is excellent Upper middle position is selected, to form the top sound chamber 3 for being located at the top of cabinet 100 and the Lower Lower positioned at cabinet 100 Sound chamber 2.Lower part sound chamber 2 namely bass sound chamber.Lower part sound chamber 2 is not connected for separator with partition 11 with top sound chamber 3, I.e. this speaker is with partition 11 is boundary and is divided into speaker top and speaker lower part.
Before still seeing that Fig. 2-2 and Fig. 2-3, the woofer 7 and phase-reversing tube 5 are arranged forward and are mounted on above and below dividing On lid 12, and it is respectively positioned in lower part sound chamber 2.The high pitch loudspeaker 9 and Squawker 8 are arranged forward and divide up and down directly Or it is fixedly mounted on front cover 12 indirectly, and be respectively positioned in top sound chamber 3.
See fig. 4 to fig. 6, the rear casing of the rear cover matrix has the inner cavity of cuboid, and by back side panel 1-11, a left side Side plate 1-12, right side plate 1-13, epipleural 1-14 and lower side panel 1-15 are surrounded.Portion disposed thereon is offered on back side panel 1-11 Rear window 1-9 and battery case seated connection oral area position positioned at its underpart.The rear cover matrix it is each after positioning column 1-8 along front and back to setting It sets.The direction of each rear positioning column 1-8 is simultaneously directly connected to close to a side of rear casing or is connected to rear casing by dowel Left and right up and down on corresponding one block of side plate in side plate, it is each after the rear portion of positioning column 1-8 be connected on back side panel 1-11.Wherein, Each rear positioning column 1-8 being connected on left plate 1-12 is arranged in pairs with the rear positioning column 1-8 being mounted on right side plate 1-13, and The two is located at sustained height.The center of the front 1-8-1 of positioning column 1-8 is equipped with a counterbore 1-8-2 after each.Counterbore 1-8-2's Diameter d1 is 7.5mm to 8.5mm, preferably 8mm.
See Fig. 5, in the present embodiment, the rear positioning column 1-8 of rear cover matrix there are 13.Left plate 1-12 by its right side according to Order from top to bottom passes sequentially through positioning column 1-8 after corresponding dowel is connected with 5, and positioning column 1-8 is known as a left side after this 5 Positioning column behind side.Right side plate 1-13 passes sequentially through corresponding dowel according to order from top to bottom by its left side and is connected with 5 Positioning column 1-8 after root, positioning column 1-8 is known as positioning column behind right side after this 5.Each rear positioning column 1-8 behind right side in positioning column It is corresponding to positioning column 1-8 after corresponding one behind left side in positioning column, positioning column after forming 5 pairs, and it is each to rear positioning column position In sustained height.Positioning column 1-8 after epipleural 1-14 has been directly connected to 2 by its downside, and positioning column 1- after 1 therein 8 are located at the top of positioning column behind left side, and positioning column 1-8 is located at the top of positioning column behind right side after another 1.Lower side panel 1-15 is by it Positioning column 1-8 after upper side is connected with 1 by dowel, and the rear positioning column 1-8 is slightly below after left and right sides in positioning column most Positioning column after a pair on the lower, and on the middle position to rear positioning column.
Seeing fig. 4 to fig. 6, the top installing frame 1-4 of rear cover 1 is coupled from above on the epipleural 1-14 of rear cover matrix, and Top installing frame 1-4 includes that left and right deckle board, rear framing plate and 3 fixed column 1-4-1 being connected on rear framing plate have 3.It is fixed before each Position column 1-4-1 be arranged along the front-back direction, and point or so be arranged successively.
Still see fig. 4 to fig. 6, the battery cassette holder 1-5 of rear cover 1 is connected to the battery case seated connection of the back side panel 1-11 of rear cover matrix On oral area position, battery cassette holder 1-5 has the opening towards rear.
Still see fig. 4 to fig. 6, the reinforcing rib 1-1(of rear cover 1 is also referred to as rear cover reinforcing rib 1-1) it include horizontally disposed level The vertical reinforcing rib 1-1b of reinforcing rib 1-1a and vertical setting.It is successively spaced in the up-down direction between each horizontal stiffener 1-1a Setting, including continous way horizontal stiffener and intermittent type horizontal stiffener.The continous way horizontal stiffener refers to according to even The horizontal stiffener 1-1a on rear cover matrix is arranged in continuous mode, including the left plate 1-12 that rear cover matrix is arranged in simultaneously Inner wall, the horizontal stiffener 1-1a on the inner wall of back side panel 1-11 and the inner wall of right side plate 1-13, further include being arranged in rear cover The right side of positioning column, the inner wall of back side panel 1-11 and the right side behind the 3rd from top to bottom piece behind the left side of matrix in positioning column 1-8 The horizontal stiffener 1-1a in the left side of positioning column behind the 3rd from top to bottom piece behind side in positioning column.The intermittent type is horizontal Reinforcing rib refers to the horizontal stiffener 1- being discontinuously arranged on rear cover matrix due to the blocking because of rear window 1-9 or battery cassette holder 1-5 1a, including whole inner walls of left plate 1-12, the whole of back side panel 1-11 a part of inner wall and right side plate 1-13 are arranged in On inner wall, namely in intermittent manner the horizontal stiffener 1-1a on rear cover matrix is set, further includes being separately positioned on rear cover base Positioning column behind the 1st from top to bottom piece behind the left side of body in positioning column 1-8, positioning column after positioning column and the 4th after the 2nd Positioning column, the 2nd behind the 1st from top to bottom piece behind right side, a part of inner wall of back side panel 1-11 and right side in positioning column 1-8 After root after positioning column and the 4th left side of positioning column 3 articles of horizontal stiffener 1-1a.Each vertical reinforcing rib 1-1b is along preceding Backward vertical setting, and in left and right successively interval setting, and vertical reinforcing rib 1-1b upwards between each vertical reinforcing rib 1-1b It is arranged on the inner wall of the lower side panel 1-15 of rear cover matrix or is arranged on the upper side of epipleural 1-14 of rear cover matrix.
See Figure 17 and Figure 18, the thickness q of the rear casing of the rear cover matrix namely each side plate with a thickness of 4mm to 6 Mm, preferably 5 mm.The thickness n of rear cover reinforcing rib 1-1 is 1mm to 2 mm, preferably 1.5mm.Adjacent two reinforcing ribs of rear cover 1 The spacing m of 1-1 is 20 to 30 mm, preferably 20mm to 25mm.Injection molding radius of corner r between each reinforcing rib 1-1 and rear cover matrix For 1 mm to 2 mm, preferably 1.5mm.See Figure 17, the front end of rear cover reinforcing rib 1-1 is extremely 4mm with the joint distance i of front cover To 6 mm, preferably 5mm.The width h1 of rear cover reinforcing rib 1-1 is 8mm to 12 mm, after first meaning of width h1 refers to Between the inner end and rear cover matrix of reinforcing rib 1-1 at left plate 1-12, the right side plate 1-13 and lower side panel 1-15 of lid matrix Distance namely its along the rear cover reinforcing rib 1-1 of introversion and extroversion width.The introversion and extroversion, for left plate 1-12 and right side plate For reinforcing rib 1-1 at 1-13 be left and right to, for reinforcing rib 1-1 lower side panel 1-15 at as upward and downward.
See that Fig. 4, vertical reinforcing rib 1-1b set by the upper side of the epipleural 1-14 of rear cover matrix are that upside adds upward Strengthening tendons, second meaning of the width h1 of rear cover reinforcing rib 1-1 refer to upside upward reinforcing rib outer end to rear cover matrix away from From namely its along introversion and extroversion width, specifically upside upward reinforcing rib vertically to distance.
See Fig. 4, the groove facing forward that is open is equipped on the front end position of the side plate up and down of the rear cover matrix, and Collectively form the annular groove 1-2 of rear cover 1.
See Figure 12 and Figure 13, the section of the annular groove 1-2 of the rear cover 1 is in isosceles trapezoid, before annular groove 1-2 Side width c is greater than the bottom width c1 of annular groove 1-2.The bottom width is the width of the rear side of annular groove 1-2.
See that Figure 13, the front side width c of the annular groove 1-2 of rear cover 1 are 2.3mm to 3mm, preferably 2.6mm.Annular groove 1- 2 bottom width c1 is 2mm to 2.7mm, preferably 2.3mm.The sagittal distance namely annular groove of annular groove 1-2 is deep Degree d is 2.5mm to 3mm, preferably 2.7mm.
See that Fig. 2-3, Fig. 4 and Figure 10, the installing web plate 1-6 of rear cover 1 there are 3 pieces, each installing web plate 1-6 is horizontally disposed, connects Connect it is on the inner wall of the rear casing of rear cover matrix and successively adjacent in the up-down direction, thus formed 2 partition pit 1-7. Each installing web plate 1-6 is respectively positioned between the rear window 1-9 of rear cover matrix and the battery cassette holder 1-5 of rear cover 1.The partition pit 1- 7 height b is 8.5 mm to 9.5mm, preferably 8.9mm.Partition pit 1-7 width a is 15 mm to 25mm, preferably 20mm.
See that Fig. 7 to Fig. 9, the front cover shell of the front cover matrix have the inner cavity of cuboid, and by foreboard 12-11, a left side Plate 12-12, right panel 12-13, upper plate 12-14 and lower plate 12-15 are surrounded.The bugle body part 12-6 of front cover 12 has 1, loudspeaker Mounting base has 3, and echo seat 12-10 has 1, and is successively set on foreboard 12-11 according to order from top to bottom.Described 3 loudspeaker mounting bases are 1 the first mounting base 12-8 and 2 the second mounting base 12-9.2 the second mounting base 12-9 are located at same One height, and divide left and right settings.First mounting base 12-8 is located at the underface of 2 the second mounting base 12-9.The bugle sheet Body portion 12-6 and the second mounting base 12-9 is respectively positioned on speaker top, and bugle body part 12-6 is located at 2 the second mounting base 12-9 Surface.First mounting base 12-8 and echo seat 12-10 is respectively positioned on speaker lower part, and echo seat 12-10 is located at the first installation The underface of seat 12-8.
Still see that Fig. 7 to Fig. 9, the bugle body part 12-6 of front cover 12 are the horn mouths that main body is in semielliptical hull shape substantially, Front openings are ellipse, and rear side is equipped with circular aditus laryngis, and the long axis of front openings along left and right to horizontally disposed, short axle edge The setting of upward and downward vertical.The short axle is located on the sagittal central vertical guide of front cover 12.The major diameter d3 is 200 mm are to 230 mm, preferably 215mm.The minor axis diameter d4 is 90mm to 110mm, preferably 100mm.The bugle sheet The diameter d5 of the aditus laryngis of body portion 12-6 is 23 mm to 30 mm, preferably 26mm.The sagittal distance of bugle body part 12-6, Namely bugle depth e2 is 50mm to 60 mm, preferably 56 mm.
See that Fig. 2-2 to Fig. 2-3, the speaker base 6 are connected to front cover 1 from rear by fastener (being not drawn into figure) Bugle body part 12-6 on.The high pitch loudspeaker 9 is fixedly mounted on from rear by fastener (being not drawn into figure) and is raised On sound device seat 6, to be indirectly fixed on front cover 1.
See Fig. 8, Fig. 9 and Fig. 2-2, sagittal center of 2 the second mounting base 12-9 of front cover 12 relative to front cover 12 Vertical guide is arranged symmetrically.Each Squawker 8 is mounted directly from rear by fastener (being not drawn into figure) and is fixed on corresponding 1 On second mounting base 12-9.
Still see that Fig. 8, Fig. 9 and Fig. 2-2, the sagittal central axial line of the first mounting base 12-8 of front cover 1 are located at front cover 12 Sagittal central vertical guide on.Woofer 7 is fixedly mounted on first from rear by fastener (being not drawn into figure) On mounting base 12-8.
Before still seeing that Fig. 8, Fig. 9 and Fig. 2-2, the sagittal center line of the echo seat 12-10 of front cover 12 are located at front cover 12 On backward central vertical guide.Phase-reversing tube 5 is fixedly mounted on echo seat 12-10 from rear by fastener (being not drawn into figure) On, to constitute paraphase channel.
See Fig. 7, corresponding with rear cover reinforcing rib 1-1 set by rear cover 1, front cover reinforcing rib 12-1 includes being arranged in left plate Front cover horizontal stiffener 12-1a on the inner wall of 12-12 and right panel 12-13 further includes being arranged in upper plate 12-14 and lower plate 12- Front cover vertical reinforcing rib 12-1b on 15 inner wall.Between each front cover horizontal stiffener 12-1a of front cover 12 in the up-down direction Successively interval setting, and horizontal stiffener 1-1a corresponding with rear cover 1 is in the same height.Each front cover vertical of front cover 12 Successively interval setting in the lateral direction between reinforcing rib 12-1b.
See Figure 19 and Figure 20, the thickness q1 of the front cover shell of the front cover matrix namely its each plate of front left and right upper and lower plates With a thickness of 4 mm to 6 mm, preferably 5mm.The thickness n1 of the front cover reinforcing rib 12-1 is 1mm to 2mm, preferably 1.5mm.Before The spacing m1 of adjacent two reinforcing rib 12-1 of lid 12 is 20 mm to 30 mm, preferably 25mm.Front cover reinforcing rib 12-1 and front cover Injection molding radius of corner r1 between matrix is 1 mm to 2mm, preferably 1.5mm.The rear end of front cover reinforcing rib 12-1 to rear cover The distance i1 of joint is 4mm to 6 mm, preferably 5mm.The width h2 of front cover reinforcing rib 12-1 is 8mm to 12 mm.
See Fig. 4 and Fig. 7, the thickness towards rear is equipped on the rear end position of the plate up and down of the front cover matrix The protrusion thinner than respective plate thickness, and collectively form the ring rib 12-2 of front cover 12.The ring rib 12-2 is with after The annular groove 1-2 of lid 1 is matched.
See Fig. 7, Fig. 9, Figure 14 and Figure 15, the ring rib 12-2 of front cover 12 corresponding with the annular groove 1-2 of rear cover 1 Cross section be in isosceles trapezoid, before the back side width e of the extending area backward of ring rib 12-2 is less than ring rib 12-2 Portion's width.The width e 1 of the bottom of the front width namely ring rib 12-2 of the raised line.The waist of ring rib 12-2 Taper it is identical as the taper of waist of annular groove 1-2 of rear cover 1, the two formed taper fit.
See that Figure 15, the back side width e of the ring rib 12-2 are 1.7mm to 2.4mm, preferably 2mm.Ring rib 12-2 Bottom width e1 be 2mm to 2.7mm, preferably 2.3mm.The front and back of ring rib 12-2 to distance f be 1.8mm to 2.3mm, it is excellent Select 2mm.
See Figure 24, the silica gel foamed strip 10 of combination sound box is arranged in the annular groove 1-2 of rear cover 1.The silica gel foaming The diameter of item 10 is 2.5 mm.The material of silica gel foamed strip 10 described in the present embodiment is silicon rubber, by the big source silicon in Shenzhen Glue Products Co., Ltd manufactures, and specification is 2.5 mm of diameter.
Still see Figure 24, when annular groove 1-2 mutual taper fit of the front cover 12 by its ring rib 12-2 and rear cover 1, The rear end of the ring rib 12-2 of front cover 12 and 10 Elastic Contact of silica gel foamed strip.Due to the joint surface 1-3 of rear cover 1 and front cover 12 For coincidence face, cause compressed silicone rubber foamed strip 10 that elastic deformation occurs and forms sealing.Namely setting silica gel foamed strip 10 has Beneficial effect is that front cover 12 and the sealing of rear cover 1 are more reliable.
See Fig. 2-2, Fig. 7 and Figure 11, it is corresponding with the installing web plate 1-6 of rear cover 1 and partition pit 1-7, before front cover 12 Lid installing web plate 12-4 has 3 pieces, and each front cover installing web plate 12-4 is horizontally disposed with, is connected to the inner wall of the front cover shell of front cover matrix It is upper and successively adjacent in the up-down direction, to form slot 12-5 before 2 partitions.The number of the front cover installing web plate 12-4 It measures identical as the quantity of installing web plate 1-6 of rear cover 1, is formed by the quantity of slot 12-5 before partition also and after the partition of rear cover 1 The quantity of slot 1-7 is identical.Each front cover installing web plate 12-4 is located at the second mounting base 12-9 and the first mounting base 12-8 of front cover 12 Between.The height b of slot 12-5 is 8.5 mm to 9.5mm, preferably 8.9mm before the partition of the front cover 12.The width a of slot before partition For 15 mm to 25mm, preferably 20mm.
See Fig. 1, Fig. 7 and Figure 11, the position of the upward and downward before the partition of the front cover 12 where slot 12-5, height b and Width a and the position of the upward and downward where the partition pit 1-7 of rear cover 1, height b and width a are consistent.When front cover 12 is pacified When forming cabinet 100 on rear cover 1, then 2 partition mounting grooves are formed simultaneously.
See that Figure 16 and Figure 23, the shape of the partition 11 of combination sound box and the partition mounting groove of cabinet 100 are corresponding.Partition 11 With plate main body and positioned at the circumferential projection portion 11-1 of plate body peripheral edge.The outer circumferential position of partition 11 is the relatively thin portion of plate thickness The upper surface at position namely the position will be lower than the upper surface of plate main body, and the lower surface at the position is higher than the following table of plate main body Face, to form the circumferential protruding portion 11-1 of partition 11.The center of plate main body is equipped with threading hole 11-2.
The thickness h of the plate main body of partition 11 and the height b of partition mounting groove are corresponding.The plate body thickness h of partition 11 is 8.5mm to 9.5mm, preferably 9mm.The thickness h 3 of the circumferential protruding portion 11-1 of partition 11 is 8.2mm to 8.7mm, and is less than partition The preferred 8.5mm of thickness h 3 of 11 plate body thickness 0.4mm to 0.8mm, circumferential protruding portion 11-1.The circumferential protruding portion of partition 11 The width g of 11-1 is 15mm to 25mm, preferably 20mm.The diameter of threading hole 11-2 is 10mm to 15mm.
See Figure 16 and Figure 23,
One layer of self-adhesion EVA double-sided adhesive belt 111 is covered in the upper and lower surface of the circumferential protruding portion 11-1 of partition 11.It is described Self-adhesion EVA double-sided adhesive belt 111 with a thickness of 0.5mm to 1 mm.When partition 11 is installed into partition mounting groove, since partition is pacified Extruding of the tankage to self-adhesion EVA double-sided adhesive belt, so as to form sealing.The EVA is ethylene-vinyl acetate copolymer, this Self-adhesion EVA double-sided adhesive belt 111 in embodiment is manufactured by Changzhou Golden Triangle packing Co., Ltd., and specification is thickness 1 Mm, 30 mm of width.
The threading hole 11-2 of partition 11 is used for the connection of lower part sound chamber 2 and top sound chamber 3.EVA is steeped into continuous cylinder when assembly (being not drawn into figure) is splitted along medial axis, and cable is pressed into the continuous cylinder of bubble and is compressed, threading hole 11-2 is filled in, so as to form Sealing to threading hole 11-2.The EVA in the present embodiment steeps continuous cylinder and produces system by Changzhou Golden Triangle packing Co., Ltd. It makes, outer diameter is 14 mm.
The partition 11 is made of medium density fibre board (MDF).Partition 11 in the present embodiment is by Linyi City Lanshan District political affairs brightness plate Factory manufactures, and the specification of the medium density fibre board (MDF) is 1220*2440*9mm, and density is every cubic metre 440 to 880kg.
See Fig. 7, Fig. 9, Figure 21 and Figure 22, corresponding with the rear positioning column 1-8 of rear cover matrix, the front cover matrix also wraps Include several prelocalization column 12-3.The quantity of the prelocalization column 12-3 is identical as the quantity of rear positioning column 1-8, and each preceding fixed The location of positioning column 1-8 is corresponding after the location of position column 12-3 is 1 corresponding to rear cover matrix, and each prelocalization The diameter d2 of column 12-3 is slightly less than the diameter d1 of the counterbore 1-8-2 of rear positioning column 1-8 corresponding thereto, and the two phase interworking It closes.The diameter d2 of prelocalization column is 7mm to 8mm, preferably 7.5mm.
See Fig. 2-3, Fig. 3, Fig. 4 and Fig. 7, when front cover 12 is mounted on rear cover 1, each prelocalization column 12-3 of front cover 12 by After its front end position protrudes into corresponding 1 of rear cover 1 in the counterbore 1-8-2 of positioning column 1-8, and the two cooperates.
(application examples 1)
The application example uses the obtained combination sound box of embodiment 1, is further added by corresponding console 4, power board 14, power Amplifying circuit 141, battery case cover board 151 and battery case 15 are then configured to the combination sound box equipment played.The console 4 It is arranged on the upper-end part of driving of rear cover 1 from the top down.Console 4 is equipped with 3 mounting hole 4-1.Console 4 is passed through by 3 screws Mounting hole 4-1 and rear cover 1 top installing frame 1-4 rear framing plate, and screw on corresponding fixed column 1-4-1, thus will Console 4 is mounted on rear cover 1.Acoustics circuit device 41 and control panel 42 are installed in the console 4.The function Rate amplifying circuit 141 is mounted on power board 14, and power board 14 is mounted on the rear window 1-9 of rear cover 1, power amplification circuit 141 are located in the inner cavity of rear cover 1, and battery case 15 is mounted on battery case cover board 151, and battery case cover board 151 is fixed on electricity In the opening towards rear of pond cassette holder 1-5, and battery case 15 is located in the inner cavity of battery cassette holder.Above-mentioned setting is so that top Sound chamber 3 is in state substantially sealed off, and lower part sound chamber 2 is made to become independent bass sound chamber, and inside is in addition to paraphase channel Outside, rest part does not communicate with the outside world, to realize the independence of audio bass.In use, this set is not only to protect The bass sound quality of card speaker provides condition, and also the Hi-Mid sound quality for guarantee speaker provides condition.
Each control signal output of the control panel 42 of console 4 control letter corresponding with acoustics circuit device 41 The electrical connection of number input terminal.The power output end of battery case 15 is electrically connected with the power end of power amplification circuit 141, acoustics circuit dress Set 41 each audio electrical signal output end audio electrical signal input terminal electrical connection corresponding with power amplification circuit 141.Function Each power signal output end of rate amplifying circuit 141 is electrically connected with the binding post of corresponding loudspeaker.These electrical connections belong to often The speaker circuit of rule is electrically connected.
The above is only the preferred embodiment of the present invention and its application, is not intended to limit the utility model, all Any modifications, equivalent replacements, and improvements made within spirit of the present utility model and principle etc. should be included in practical Within novel protection scope.

Claims (10)

  1. Be the combination sound box of inverted phase type 1. a kind of plastics high-fidelity combination sound box, including cabinet (100), woofer (7) and Partition (11)；The cabinet (100) is equipped with several reinforcing ribs；The cabinet (100) is the cabinet of cuboid；Its It is characterized in that:
    The combination sound box further includes phase-reversing tube (5), Squawker (8) and high pitch loudspeaker (9)；The bass loudspeaker Device has 1, and Squawker has 1 to 3, and high pitch loudspeaker has 1 to 3；The cabinet (100) is by front cover (12) from front It is fixedly mounted on rear cover (1) and is formed；The front cover (12) and rear cover (1) is integrated through injection molding part；The rear cover (1) Including be equipped with cuboid inner cavity rear cover matrix and several rear cover reinforcing ribs (1-1)；The front cover (12) includes being equipped with The front cover matrix of cuboid inner cavity and several front cover reinforcing ribs (12-1), and the size and shape of front cover matrix and rear cover base Body is corresponding；The front cover reinforcing rib (12-1) and rear cover reinforcing rib (1-1) belongs to the reinforcement being arranged on cabinet (100) Muscle；
    The partition (11) is horizontally disposed, and is located at the intermediate position of cabinet (100), and forms the top for being located at cabinet top Sound chamber (3) and lower part sound chamber (2) positioned at lower box, so that the combination sound box is with partition (11) are boundary and are divided into Speaker top and speaker lower part；The woofer (7) and phase-reversing tube (5) is arranged forward and divides is mounted on front cover up and down (12) it on, and is respectively positioned in lower part sound chamber (2)；The high pitch loudspeaker (9) and Squawker (8) is arranged and divides forward It is directly or indirectly fixedly mounted on front cover (12), and is respectively positioned in top sound chamber (3) up and down.
  2. 2. plastics high-fidelity combination sound box according to claim 1, it is characterised in that: further include speaker base (6)；It is described Squawker (8) have 2, and divide left and right settings on sustained height；The high pitch loudspeaker (9) has 1；Described Partition (11) is located at the position on the upper side at the intermediate position of cabinet (100)；
    The front cover matrix includes front cover shell；Front cover shell has the inner cavity of cuboid, and by foreboard (12-11), left plate (12-12), right panel (12-13), upper plate (12-14) and lower plate (12-15) surround；Front cover (12) further includes successively setting from top to bottom Set 1 bugle body part (12-6), 3 loudspeaker mounting bases and 1 echo seat (12-10) on foreboard (12-11)；It is described 3 loudspeaker mounting bases be 1 the first mounting base (12-8) and 2 the second mounting bases (12-9)；2 the second mounting base (12- 9) it is located at sustained height, and divides left and right settings；First mounting base (12-8) is located at the lower section of 2 the second mounting bases (12-9), and Positioned at the underface of bugle body part (12-6)；The bugle body part (12-6) and the second mounting base (12-9) is respectively positioned on sound Upper box part, and bugle body part (12-6) is located at the top of the middle of 2 the second mounting bases (12-9)；First mounting base (12- 8) and echo seat (12-10) is respectively positioned on speaker lower part, and echo seat (12-10) is located at the underface of the first mounting base (12-8)；
    The bugle body part (12-6) is the horn mouth that main body is in semielliptical hull shape substantially, and front openings are ellipse, Rear side is equipped with circular aditus laryngis, and the long axis edge left and right of front openings, to being horizontally disposed with, short axle is vertically arranged to vertical；Institute The short axle stated is located on the sagittal central vertical guide of front cover (12)；
    The speaker base (6) is by fastener from the bugle body part (12-6) that rear is connected to front cover (12)；It is described High pitch loudspeaker (9) be fixedly mounted on speaker base (6) by fastener from rear, to be indirectly fixed to front cover (12) On；
    2 the second mounting bases (12-9) of the front cover (12) are symmetrical relative to the sagittal central vertical guide of front cover (12) Arrangement；Each Squawker (8) is mounted on corresponding 1 the second mounting base (12-9)；
    The sagittal central axial line of the first mounting base (12-8) of the front cover (12) is located at the sagittal of front cover (12) On central vertical guide；Woofer (7) is fixedly mounted on the first mounting base (12-8) by fastener from rear；
    The sagittal center line of echo seat (12-10) is located on the sagittal central vertical guide of front cover (12)；Phase-reversing tube (5) It is fixedly mounted on echo seat (12-10) by fastener from rear, to constitute paraphase channel.
  3. 3. plastics high-fidelity combination sound box according to claim 2, it is characterised in that: the bugle sheet of the front cover (12) The major diameter d3 of the front openings of the ellipse in body portion (12-6) is 200 mm to 230 mm；The minor axis diameter d4 is 90mm to 110mm；The diameter d5 of the aditus laryngis of the bugle body part (12-6) is 23 mm to 30 mm；Bugle body part (12- 6) sagittal distance namely bugle depth e2 is 50mm to 60 mm.
  4. 4. plastics high-fidelity combination sound box according to claim 2, it is characterised in that: the rear cover matrix includes back cover Shell；The rear casing have cuboid inner cavity, and by back side panel (1-11), left plate (1-12), right side plate (1-13), Epipleural (1-14) and lower side panel (1-15) surround；Rear window (1-9) and the position in portion disposed thereon are offered on back side panel (1-11) In the battery case seated connection oral area position of its underpart；
    The rear cover reinforcing rib (1-1) includes the vertical reinforcing rib of horizontally disposed horizontal stiffener (1-1a) and vertical setting (1-1b)；Between each horizontal stiffener (1-1a) in the up-down direction successively interval setting, including continous way horizontal stiffener and Intermittent type horizontal stiffener；The continous way horizontal stiffener refers to the level being continuously arranged on rear cover matrix Reinforcing rib (1-1a), including be arranged in simultaneously the inner wall of left plate (1-12) of rear cover matrix, back side panel (1-11) it is interior Horizontal stiffener (1-1a) on the inner wall of wall and right side plate (1-13)；The intermittent type horizontal stiffener refers to because of rear window The blocking of (1-9) or battery case seated connection oral area position and be discontinuously arranged in the left plate (1-12) of rear cover matrix whole inner walls, On whole inner walls of a part of inner wall of back side panel (1-11) and right side plate (1-13), namely in intermittent manner setting in rear cover matrix On horizontal stiffener (1-1a)；
    Each vertical reinforcing rib (1-1b) along front and back to vertical be arranged, and between each vertical reinforcing rib (1-1b) left and right to On successively interval setting, and vertical reinforcing rib (1-1b) is arranged on the inner wall of the lower side panel (1-15) of rear cover matrix or sets It sets on the upper side of the epipleural (1-14) of rear cover matrix；
    The front cover reinforcing rib (12-1) includes the front cover water being arranged on the inner wall of left plate (12-12) and right panel (12-13) Flat reinforcing rib (12-1a) further includes the front cover vertical reinforcing rib being arranged on upper plate (12-14) and the inner wall of lower plate (12-15) (12-1b)；Between each front cover horizontal stiffener (12-1a) of front cover (12) in the up-down direction successively interval setting, and with it is rear The corresponding horizontal stiffener (1-1a) of lid (1) is in the same height；Each front cover vertical reinforcing rib (12-1b) of front cover (12) Between in the lateral direction successively interval setting.
  5. 5. plastics high-fidelity combination sound box according to claim 4, it is characterised in that: the thickness substantially of the rear cover matrix Spend each side plate of q namely rear casing with a thickness of 4mm to 6 mm；The thickness n of rear cover reinforcing rib (1-1) is 1mm to 2 mm； The spacing m of adjacent two rear cover reinforcing ribs (1-1) of rear cover (1) is 20 to 30 mm；Each rear cover reinforcing rib (1-1) and rear cover base Injection molding radius of corner r between body is 1 mm to 2 mm；The front end of rear cover reinforcing rib (1-1) is at a distance from the joint of front cover I is 4mm to 6 mm；The width h1 of rear cover reinforcing rib (1-1) is 8mm to 12 mm, after first meaning of width h1 refers to The inner end of reinforcing rib (1-1) at the left plate (1-12) of lid matrix, right side plate (1-13) and lower side panel (1-15) and rear cover base The distance between body namely its along the rear cover reinforcing rib (1-1) of introversion and extroversion width；The introversion and extroversion, for left plate (1- It 12) is and for the reinforcing rib (1-1) at right side plate (1-13) left and right to for the reinforcing rib (1- at lower side panel (1-15) It 1) is upward and downward for；
    Vertical reinforcing rib (1-1b) set by the upper side of the epipleural (1-14) of the rear cover matrix is that upside adds upward Strengthening tendons, second meaning of the width h1 of rear cover reinforcing rib 1-1 refer to upside upward reinforcing rib outer end to rear cover matrix away from From namely its along introversion and extroversion width, specifically upside upward reinforcing rib vertically to distance；
    Each plate of front left and right upper and lower plates of the basic thickness q1 namely front cover shell of the front cover matrix with a thickness of 4 mm to 6 mm；The thickness n1 of the front cover reinforcing rib (12-1) is 1mm to 2mm；Adjacent two reinforcing ribs (12-1) of front cover (12) Spacing m1 is 20 mm to 30 mm；Injection molding radius of corner r1 between front cover reinforcing rib (12-1) and front cover matrix be 1 mm extremely 2mm；The rear end of front cover reinforcing rib (12-1) is extremely 4mm to 6 mm with the joint distance i1 of rear cover；Front cover reinforcing rib (12- 1) width h2 is 8mm to 12 mm.
  6. 6. plastics high-fidelity combination sound box according to claim 4, it is characterised in that: further include silica gel foamed strip (10)； The groove facing forward that is open, and common structure are equipped on the front end position of the side plate up and down of the rear casing of the rear cover matrix At the annular groove (1-2) of rear cover (1)；The section of the annular groove (1-2) of the rear cover (1) is in isosceles trapezoid, and annular is recessed The front side width c of slot (1-2) is greater than the bottom width c1 of annular groove (1-2)；The bottom width is annular groove (1- 2) width of rear side；
    The thickness towards rear is equipped on the rear end position of the plate up and down of the front cover shell of the front cover matrix than respective Plate thickness want thin protrusion, and collectively form the ring rib (12-2) of front cover (12)；The ring rib of the front cover (12) The cross section of (12-2) is in isosceles trapezoid, and the back side width e of the extending area backward of ring rib (12-2) is less than ring rib The front width e1 of (12-2)；
    The taper of the waist of the ring rib (12-2) and the taper of waist of annular groove (1-2) of rear cover (1) are identical, and two Person forms taper fit；The silica gel foamed strip (10) is arranged in the annular groove (1-2) of rear cover (1)；When front cover (12) When by annular groove (1-2) mutual taper fit of its ring rib (12-2) and rear cover (1), the ring rib of front cover (12) The rear end of (12-2) and silica gel foamed strip (10) Elastic Contact.
  7. 7. plastics high-fidelity combination sound box according to claim 6, it is characterised in that: the annular of the rear cover (1) is recessed The front side width c of slot (1-2) is 2.3mm to 3mm；The bottom width c1 of annular groove (1-2) is 2mm to 2.7mm；Annular groove The sagittal distance of (1-2) namely the depth d of counterbore are 2.5mm to 3mm；
    The back side width e of the ring rib (12-2) is 1.7mm to 2.4mm；The bottom width e1 of ring rib (12-2) is 2mm to 2.7mm；The front and back of ring rib (12-2) to distance f be 1.8mm to 2.3mm.
  8. 8. plastics high-fidelity combination sound box according to claim 4, it is characterised in that: the rear cover (1) further include 2 to 3 pieces be rear casing that is horizontally disposed, being connected to rear cover matrix inner wall on and successively adjacent installation muscle in the up-down direction Plate (1-6), to form 1 to 2 partition pit (1-7)；Each installing web plate (1-6) is respectively positioned on the back side panel (1- of rear cover matrix 11) between rear window (1-9) and battery case seated connection oral area position；
    The front cover (12) further includes quantity front cover installing web plate (12- identical with the quantity of installing web plate (1-6) of rear cover 4), each front cover installing web plate (12-4) is horizontally disposed with, on the inner wall of the front cover shell that is connected to front cover matrix and in above-below direction On it is successively adjacent, to form slot (12-5) before the partition fewer by 1 than the quantity of front cover installing web plate (12-4)；Namely it is described before The quantity of lid installing web plate (12-4) is identical as the quantity of installing web plate (1-6) of rear cover (1), is formed by slot (12- before partition 5) quantity is also identical as the quantity of partition pit (1-7) of rear cover (1)；Each front cover installing web plate (12-4) is located at front cover (12) The second mounting base (12-9) and the first mounting base (12-8) between；
    Position, height b and the width a of upward and downward before the partition of the front cover (12) where slot (12-5) and rear cover (1) The position of upward and downward where partition pit (1-7), height b and width a are consistent；When front cover (12) is mounted on rear cover (1) When above forming cabinet (100), then the partition mounting groove of respective numbers is formed simultaneously；
    The shape of the partition (11) is corresponding with the partition mounting groove of cabinet (100)；Partition (11) has plate main body and is located at The circumferential protruding portion (11-1) of plate body peripheral edge；The outer circumferential position of partition (11) is the relatively thin position of plate thickness namely the portion The upper surface of position will be lower than the upper surface of plate main body, and the lower surface at the position is higher than the lower surface of plate main body, to be formed The circumferential protruding portion (11-1) of partition (11)；The center of plate main body is equipped with threading hole (11-2)；In use, steeping continuous circle by EVA Column fills the threading hole (11-2)；
    One layer of self-adhesion EVA double-sided adhesive belt is covered in the upper and lower surface of the circumferential protruding portion (11-1) of the partition (11) (111)；When in partition mounting groove of the partition (11) by its outer circumferential position insertion cabinet (100), partition (11) is then by it Circumferential protruding portion (11-1) is corresponding with front and rear covers by covering the self-adhesion EVA double-sided adhesive belt (111) in its upper and lower surface Installing web plate is adhesively fixed, to form mutual sealing.
  9. 9. plastics high-fidelity combination sound box according to claim 8, it is characterised in that: the partition pit (1-7) Height b is 8.5 mm to 9.5mm；Partition pit (1-7) width a is 15 mm to 25mm；The plate main body of the partition (11) Thickness h is corresponding with the height b of partition mounting groove；The plate body thickness h of partition (11) is 8.5mm to 9.5mm, partition (11) The thickness h 3 of circumferential protruding portion (11-1) is 8.2mm to 8.7mm, and is less than the plate body thickness 0.4mm of partition (11) extremely 0.8mm；The width g of the circumferential protruding portion (11-1) of partition (11) is 15mm to 25mm；The diameter of threading hole (11-2) is 10mm To 15mm；The self-adhesion EVA double-sided adhesive belt (111) with a thickness of 0.5mm to 1 mm.
  10. 10. plastics high-fidelity combination sound box according to claim 4, it is characterised in that: the rear cover (1) further includes electricity Pond cassette holder (1-5)；The rear cover matrix further includes positioning column (1-8) after several；Battery cassette holder (1-5) is connected to be located at after In the inner cavity of cover, and end opening is connected on the battery case seated connection oral area position of back side panel (1-11) thereafter；Positioning column (1- after each 8) it is arranged along the front-back direction, and a side close to rear casing for each rear positioning column (1-8) is directly connected to or passes through dowel It is connected on corresponding one block of side plate in the side plate of the left and right of rear casing or more, the rear portion of each rear positioning column (1-8) is connected to back cover On the back side panel (1-11) of shell；Wherein, it is connected to positioning column (1-8) after each on left plate (1-12) and is connected to right side plate Rear positioning column (1-8) on (1-13) is arranged in pairs, and the two is located at sustained height, and is known as the rear positioning that left and right is arranged in pairs Column；The center of the front (1-8-1) of positioning column (1-8) is equipped with a counterbore (1-8-2) after each；
    The front cover matrix further includes several prelocalization columns (12-3)；The quantity of the prelocalization column (12-3) is determined with rear The quantity of position column (1-8) is identical, and after the location of each prelocalization column (12-3) and corresponding 1 locating for positioning column (1-8) Position is corresponding, and the diameter d2 of each prelocalization column (12-3) is slightly less than the counterbore of rear positioning column (1-8) corresponding thereto The diameter d1 of (1-8-2)；
    When the front cover (12) is mounted on rear cover (1), each prelocalization column (12-3) of front cover (12) is by its front end position It protrudes into after corresponding 1 of rear cover (1) in the counterbore (1-8-2) of positioning column (1-8), and the two cooperates；
    Continous way horizontal stiffener in the rear cover reinforcing rib (1-1) further includes the rear positioning that left and right is arranged in and is arranged in pairs Horizontal stiffener (1-1a) on the inner wall of the inside of the left and right sides of column and back side panel (1-11)；The intermittent type level adds Strengthening tendons further include the inside that the left and right sides for the rear positioning column that left and right is arranged in pairs is arranged in and a part of back side panel (1-11) Horizontal stiffener (1-1a) on inner wall.
CN201821621441.3U 2018-09-30 2018-09-30 A kind of plastics high-fidelity combination sound box Active CN209089159U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821621441.3U CN209089159U (en) 2018-09-30 2018-09-30 A kind of plastics high-fidelity combination sound box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821621441.3U CN209089159U (en) 2018-09-30 2018-09-30 A kind of plastics high-fidelity combination sound box

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Publication Number Publication Date
CN209089159U true CN209089159U (en) 2019-07-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109257667A (en) * 2018-09-30 2019-01-22 常州美硕电子有限公司 Plastics high-fidelity combination sound box
CN112788492A (en) * 2019-11-04 2021-05-11 海信视像科技股份有限公司 Display device and speaker assembly
US11159762B2 (en) 2019-11-04 2021-10-26 Hisense Visual Technology Co., Ltd. Display device and speaker assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109257667A (en) * 2018-09-30 2019-01-22 常州美硕电子有限公司 Plastics high-fidelity combination sound box
CN112788492A (en) * 2019-11-04 2021-05-11 海信视像科技股份有限公司 Display device and speaker assembly
US11159762B2 (en) 2019-11-04 2021-10-26 Hisense Visual Technology Co., Ltd. Display device and speaker assembly
CN112788492B (en) * 2019-11-04 2022-02-15 海信视像科技股份有限公司 Display device and speaker assembly

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