CN203984685U - Molded horn vibrating reed is processed in difficult combustion - Google Patents

Abstract

A molded horn vibrating reed is processed in difficult combustion, comprises a cloth body, and this cloth body is discoid and woven and formed by many warp thread and weft yarn by class, and this cloth surface is combined with a resin bed, a glue-line, a drying layer and a difficult combustion layer.Can make by this horn vibrating reed there is the effects such as flame retardancy, water-repellancy, anti-soil, to meet demand or the standard of car horn part, electronic installation inner body.

Description

Molded horn vibrating reed is processed in difficult combustion

Technical field

The utility model is about a kind of horn component, particularly about a kind of horn vibrating reed.

Background technology

Different types of loud speaker that is seen everywhere in daily life, it is mainly a kind of electroacoustic transducer, by certain physical effect, electric energy conversion, is acoustic energy.Loud speaker for different purposes can be divided into many different types, as piezo-electric loudspeaker, electromagnetic loudspeaker, condenser loudspeaker, dynamic speaker etc.For being applied in the various loud speakers of car horn, outdoor electronic device, portable electric device (mobile phone, panel computer), in various application, there is various demand, comprise moisture resistance (water-repellancy), thermal endurance, difficult combustion/anti-flammability etc., to avoid loud speaker in these electronic installations or equipment, because the physical factor such as humidity, temperature causes the fault of horn component, cause even contingent danger peace factor.

With reference to figure 1 and Fig. 2, it shows respectively the end view of structure and the stereogram of prior art vibrating reed of prior art loudspeaker inside.Loudspeaker internal structure comprises shell 30, magnetic core 31, voice coil loudspeaker voice coil 32 and horn vibrating reed 33 (for example, playing ripple).Magnetic core 31 is arranged among shell 30, the outer surface winding around of voice coil loudspeaker voice coil 32, to connect external power source, and connect magnetic core 31, when electric current by time produce electromagnetic induction and up-down vibration, horn vibrating reed 33 connected with outer casings 30, and there is central through hole 34 to connect voice coil loudspeaker voice coil 32, horn vibrating reed 33 must have light weight, have certain degree of hardness and flexible characteristic, with fixing voice coil loudspeaker voice coil 32, along with voice coil loudspeaker voice coil 32 vibrates and damping buffering effect is provided.

The bullet ripple shown in Fig. 2 of take is example, and the material of the horn vibrating reed of prior art is generally the cloth containing resin pickup, is generally a similar round body, to add hot padding mode, makes cross section form the wavy shape of class.The manufacture method of existing vibrating reed has resin impregnated step, baking procedure, imprint step and moulding cutting step conventionally.Resin impregnated step is that cloth is impregnated among resin, makes cloth absorb resin, and has certain hardness.Baking procedure is dried the cloth that absorbs resin, to remove the moisture in cloth.Imprint step is by absorbing the cloth heating of resin, forming required shape in impression mode in cross section, for example, wavy.Moulding cutting step is to be cut into a plurality of horn vibrating reeds, and unnecessary cloth is removed, and further forms central through hole.But in the existing field that for example car horn vibrating reed part is manufactured, in the past less demanding for its moisture resistance (water-repellancy), thermal endurance, difficult combustion/anti-flammability etc., those skilled in the art do not attempt the technology of existing macromolecular material to be applied in the improvement of horn vibrating reed, for example, its surface is carried out to preliminary treatment to promote its surface property upgrading.With macromolecular material, the material surface character that some are special, such as chemical composition, hydrophily, roughness, conductivity, crosslink density etc., it is often the emphasis of considering, the character that these are special, can utilize the technology of surfaction, with regard to macromolecular material, process, the surface of macromolecular material be had and can meet required surface nature.

Utility model content

Yet, in the situation that auto industry now, electronic equipment parts standard are more and more higher, every physical environment for horn component tolerates performance also more and more for requiring, loudspeaker about using in automobile, electronic equipment particularly, under hot environment, may affect the reliability and safety of loudspeaker product, therefore these products are starved of difficult combustion/fire-retardant/performances such as resistance to combustion, for developing a kind of horn vibrating reed of resisting hot environment, have in fact its demand.

Accordingly, an object of the present utility model is to provide a kind of difficult combustion to process molded horn vibrating reed, wherein this horn vibrating reed comprises a cloth body, this cloth body is discoid and woven and formed by many warp thread and weft yarn by class, and this cloth surface is combined with a resin bed, a glue-line, a drying layer and a difficult combustion layer.

Preferably, this cloth body has a first surface and a second surface, and this resin bed, this glue-line, this drying layer and this difficulty combustion layer are arranged at first surface and the second surface of this cloth body simultaneously.

Preferably, this cloth body has a first surface and a second surface, and this resin bed, this glue-line, this drying layer and this difficulty combustion layer are arranged at the first surface of this cloth body and one of them of second surface.

Preferably, this difficulty combustion layer for be jointly formed at this resin bed, this glue-line and this drying layer at least one of them.

Via technological means of the present utility model, can make horn vibrating reed there is the effect of difficult combustion/fire-retardant/resistance to combustion, can meet car horn part, electronic installation inner body for demand or the standard of resisting hot environment.

Accompanying drawing explanation

Fig. 1 is for showing the cutaway view of prior art loudspeaker internal structure;

Fig. 2 is for showing the stereogram of prior art horn vibrating reed (bullet ripple);

Fig. 3 is for showing the calcspar of horn vibrating reed manufacturing process of the present utility model;

Fig. 4 is for showing the schematic diagram of horn vibrating reed manufacturing process of the present utility model;

Fig. 5 is the partial schematic diagram of display fibers cloth material;

Fig. 6 A, Fig. 6 B demonstrate respectively the cutaway view of different horn vibrating reeds;

Fig. 7 is for showing the schematic diagram of the waterproof effect of horn vibrating reed.

Wherein, description of reference numerals is as follows:

100 fiber cloth materials

11 warp thread

12 weft yarns

200 horn vibrating reeds

20 cloth bodies

201 first surfaces

202 second surfaces

21 warp thread

22 weft yarns

23 resin beds

24 glue-lines

25 drying layers

26 difficult combustion layers

30 shells

31 magnetic cores

32 voice coil loudspeaker voice coils

33 horn vibrating reeds

34 central through holes

S1～S7 step

Embodiment

Please refer to Fig. 3 and Fig. 4, it is respectively calcspar and the schematic diagram of the manufacturing process that shows horn vibrating reed.As shown in the figure, first provide fiber cloth material (step S1).With reference to figure 5, it demonstrates the partial schematic diagram of fiber cloth material 100, in figure, demonstrating fiber cloth material 100 is mainly by warp thread 11 and weft yarn 12 fabric forming that weaves, warp thread 11 and weft yarn 12 fibre composition used can be polyester fiber, cotton fiber, acryl fiber, silk fiber, PEN (PEN), benzamide fiber (Aramid), bamboo fiber etc., but non-ly only limits to this.

Then, fiber cloth material is impregnated in to incombustible agent (step S21).Selecting of incombustible agent can be non-halogen fire-retardant agent, to meet relevant environmental regulation, avoids affecting health, or causes respiratory system, immune system, causes the problem of neonate's defect.

Then, fiber cloth material is impregnated in to liquid resin (step S2), makes fiber cloth material absorb resin and there is certain hardness, then the fiber cloth material containing after resin pickup is dried.Selecting of resin material can be one of them or its combination of phenolic resins, epoxy resin, mylar, or other has the macromolecule resin material of thermosetting characteristic, is not limited only to this.The incombustible agent of abovementioned steps also can directly be added in liquid resin, makes two steps be reduced to a step, but when selecting incombustible agent, must note itself and the problem of the parameter value adjustment such as the solubility of liquid resin composition and suitable mixed proportion/concentration.

One glue-line (step S3) is set on fiber cloth material, can be by the mode of screen painting or alternate manner coated glue layer material, and glue line material can be rubber, silica gel or other macromolecule glue material, then and by the fiber cloth material after coated glue layer material dry.

At this, optionally after arranging, glue-line carries out secondary incombustible agent impregnation (step S41), and to guarantee that incombustible agent is adsorbed in fiber cloth material, or be to omit step 21 to this, just to carry out incombustible agent impregnation (step S41).

Then, fiber cloth material is impregnated in to dryingagent (step S4).Selecting of dryingagent can be that eight carbon fluorine are that dryingagent or six carbon fluorine are dryingagent, be preferably not contain the dryingagent of PFOS (PFOS) or perfluoro caprylic acid (PFOA) composition, to meet relevant environmental regulation, avoid affecting health, or cause respiratory system, immune system, cause the problem of neonate's defect.The incombustible agent of abovementioned steps also can directly be added in dryingagent, makes two steps be reduced to a step.But when selecting incombustible agent, must note itself and the problem of the parameter value adjustment such as the solubility of liquid resin composition and suitable mixed proportion/concentration.

Then, by the moisturizing (step S5) that dewaters of fiber cloth material, the moisturizing that dewaters described herein, comprise utilizing and roll rumble or scraper dewaters/dewaters (as shown in Figure 4), but need to keep humidity, can not dry completely, the occupation mode difference of this step and existing dryingagent is very large.

Temperature with 200-230 degree heats imprinting moulding (step S6) again.So far, a plurality of horn vibrating reeds 200 without cutting on whole cloth material, have been formed.

Then, in type fiber cloth material can be cut to (step S7), also can for each horn vibrating reed, form central through hole (not shown) in this step, and cut unnecessary fabric to obtain final horn vibrating reed 200.

In addition, in said method, more comprise and can before or after impregnation liquid resin or incombustible agent, to fiber cloth material, carry out discharge process (one or many), to improve the surface energy (surface tension) on fiber cloth material surface.Above-mentioned discharge process can be electricity slurry discharge process or Corona discharge Treatment.By discharge process, can make fiber cloth material surfaction, increase its surface energy/surface tension, be conducive to the absorption of resin or incombustible agent.Visual different demand and object are adjusted order and the number of times of its discharge process in overall process.

With reference to figure 6A, it is for showing the cutaway view of horn vibrating reed.As shown in the figure, horn vibrating reed 200 via above-mentioned processing procedure manufacturing, comprise a cloth body 20, it is woven and is formed (with reference to figure 5) by many warp thread 21 and weft yarn 22, cloth body 20 has a first surface 201 and second surface 202, the first surface 201 of cloth body 20 and second surface 202 are combined with a resin bed 23, glue-line 24, drying layer 25 and difficult combustion layer 26, shown in this figure is when fiber cloth material is initial, first to carry out the impregnation of incombustible agent, so difficult combustion layer 26 is formed on the surface that approaches cloth body 20 most.

Horn vibrating reed 200 shown in this figure, its step of soaking incombustible agent is separately to carry out, therefore form other difficult combustion layer 26, the effect of separately processing with regard to effect is slightly good, but due to comparatively complicated on processing procedure, therefore which kind of practice the characteristic of visual horn vibrating reed product requirement and the consideration of cost aspect consider to adopt comparatively appropriate, at this, be only to propose illustration, be not limited only to this.

Because the impregnation of incombustible agent can also be after glue-line setting steps, therefore, difficult combustion layer 26 also may be looked the arrangement of fabrication steps and change to some extent with the structural order of other layer, and at this, not one by one with graphic representation, but these variations still belong in the scope understood of the art.

With reference to figure 6B, it is for showing the cutaway view of horn vibrating reed.As shown in the figure, be with the difference of Fig. 6 A, due in molding process, incombustible agent also can be added in liquid resin or dryingagent and carry out simultaneously, so resin bed 23, glue-line 24 or drying layer 25 also can contain incombustible agent composition.Horn vibrating reed 200 shown in this figure refers in the liquid resin, glue line material or the dryingagent that soak and adds incombustible agent composition simultaneously, incombustible agent composition is included in resin bed 23, glue-line 24 or drying layer 25 simultaneously.

With reference to figure 7, the horn vibrating reed 200 producing by step described in the utility model, it can have waterproof/grease proofing and difficult combustion effect, make horn vibrating reed there is water-repellancy, group oiliness, anti-soil, the difficult combustion/effects such as resistance to combustion, to meet demand or the standard of car horn part, electronic installation inner body.

As seen from the above embodiment, the value in the molded true tool industry of horn vibrating reed is processed in difficult combustion provided by the utility model, but above narration is only preferred embodiment explanation of the present utility model, those of ordinary skill in the art are when doing other all improvement according to above-mentioned explanation, but these changes still belong in spirit of the present utility model and following defined the scope of the claims.

Claims (4)

1. molded horn vibrating reed is processed in a difficult combustion, it is characterized in that, this horn vibrating reed comprises a cloth body, and this cloth body is discoid and woven and formed by many warp thread and weft yarn by class, and this cloth surface is combined with a resin bed, a glue-line, a drying layer and a difficult combustion layer.

2. horn vibrating reed as claimed in claim 1, is characterized in that, this cloth body has a first surface and a second surface, and this resin bed, this glue-line, this drying layer and this difficulty combustion layer are arranged at first surface and the second surface of this cloth body simultaneously.

3. horn vibrating reed as claimed in claim 1, is characterized in that, this cloth body has a first surface and a second surface, and this resin bed, this glue-line, this drying layer and this difficulty combustion layer are arranged at the first surface of this cloth body and one of them of second surface.

4. horn vibrating reed as claimed in claim 1, is characterized in that, this difficulty combustion layer be jointly formed at this resin bed, this glue-line and this drying layer at least one of them.