CN202269007U

CN202269007U - PU corrugated ring and PP sound basin for loudspeaker

Info

Publication number: CN202269007U
Application number: CN2011203137031U
Authority: CN
Inventors: 葛锦明; 刘殷; 刘鹤鸣
Original assignee: ZHEJIANG TIANLE GROUP CO Ltd
Current assignee: ZHEJIANG TIANLE GROUP CO Ltd
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2012-06-06
Anticipated expiration: 2021-08-24

Abstract

A PU corrugated ring and a PP sound basin for a loudspeaker belong to the field of a loudspeaker. The prior sound basin possesses the disadvantages of a short service life, high aging probability and poor weatherability. In the utility model, two portions of the PU corrugated ring and a PP cone are included, the upper portion is the PU corrugated ring, the lower portion is the PP cone, and the PU corrugated ring and the PP cone are combined by glue. The PU corrugated ring is prepared by a plastic uptake molding technology from the main raw material of thermoplastic polyurethane elastomer high-molecular material, and the PP cone is prepared by an injection moulding molding technology from the main raw material of polypropylene material doped by organic matter and filler. In the utility model, good aging resistance performance and excellent environmental protection performance are possessed, and the characteristics of high consistency, a low distortion factor, etc. are possessed.

Description

A kind of loud speaker is with PU ring PP sound basin

Technical field

The utility model relates to a kind of loud speaker with PU ring PP sound basin, can be widely used in the high-performance speaker system of products such as professional sound equipment, automobile audio.

Background technology

Loudspeaker cone is a critical component of speaker vibration system, the performance index such as resonance frequency, effective frequency, sensitivity, the distortion factor that it directly influences loud speaker with and the quality of tonequality.Loudspeaker cone is made up of ring and cone; Traditional sound basin ring has cloth ring, foam ring, rubber ring; Cloth ring, foam ring since when in open even rugged environment, using the life-span shorter; Under the long-term full load of loud speaker, use to occur relaxing and metaboly, and there is easy ageing in the rubber ring, shortcomings such as weather resistance difference.Traditional sound basin cone mainly adopts paper pulp, but because many shortcomings of cone (can not waterproof, poor rigidity, can not bear high-power etc.), is not suitable in the high-performance speaker system and uses.

The utility model content

The purpose of the utility model will overcome above-mentioned defective exactly, provide that a kind of intensity is high, damping is good, can realize smoothly responding, to ambient humidity insensitive, ageing-resistant be applicable to the PU ring PP sound basin that the high-performance speaker system is used.

For this reason; The utility model adopts following technical scheme: a kind of loud speaker is made up of PU ring and PP cone two parts with PU ring PP sound basin; It is characterized in that: described a kind of loud speaker uses the top of PU ring PP sound basin to be the PU ring, and the bottom is the PP cone, and PP cone and PU ring are composited through glue; The primary raw material that described PU ring is adopted is the TPUE macromolecular material, forms through the plastics sucking moulding processes; The primary raw material that described PP cone is adopted is doping organic substance and filler ground polypropylene material, processes through injection molding process.

The utility model can reach following beneficial effect: 1, the utility model PU ring employing TPUE macromolecular material is a primary raw material; The PU material is as loud speaker ring material; Have low-density, high compliance, outward appearance good, in light weight, intensity is good; Have ageing-resistant performance and good characteristics such as environmental-protecting performance preferably, can satisfy of the requirement of high-performance speaker system sound basin ring material; 2, because the cone of the utility model has adopted the PP cone; PP cone used raw material are the polypropylene material of organic substance and other inserts of having mixed, and have very strong rigidity and internal damping, good waterproof performance; Bright-colored abundant; The employing injection molding process processes, and can satisfy high-performance speaker system high conformity, the requirement that the distortion factor is low.

Description of drawings

Fig. 1 is the front view of the utility model.

Among the figure, 1, the PU ring; 2, PP cone.

Embodiment

Be described in detail below in conjunction with the embodiment of accompanying drawing the utility model.

As shown in Figure 1, the utility model is made up of PU ring 1 and PP cone 2 two parts, and a kind of loud speaker uses the top of PU ring PP sound basin to be PU ring 1, and the bottom is a PP cone 2, and PP cone 2 and PU ring 1 are composited through glue; The primary raw material that PU ring 1 is adopted is the TPUE macromolecular material, forms through the plastics sucking moulding processes; The primary raw material that PP cone 2 is adopted is doping organic substance and filler ground polypropylene material, processes through injection molding process.

1 moulding of PU ring: with the TPUE macromolecular sheet material is raw material; Material is fixed in carries out preheating on the frame; Utilize the negative pressure prepared material to yield to the die surface shape,, close vacuum after reaching the regular hour along with the cooling effect of mould makes PU sheet material solidifying and setting; Stop the plastics sucking moulding process, obtain the PU ring behind the excision slitter edge.

2 moulding of PP cone: with the crystalline p p sheet is raw material, and organic substance such as mica, glass and filler are added in the raw material after crushed, utilizes the impetus of dual-screw pelletizer rotation; With the particle thermoplastic, change according to the three-state of thermoplastics under different temperatures, be converted into elastomeric state by the glassy state of physical state; Be converted into the plastic solution of viscous state again; Penetrate from the injection moulding head, cooling and shaping in the certain die cavity of mould gets the PP cone behind the excision burr.

The PU ring 1 of plastics sucking moulding is glued together through automatic glue spreaders with the PP cone of injection mo(u)lding, and then be placed on the scrap (bridge) mould, be composited a kind of high-grade loud speaker with PU ring PP sound basin through automatic scrap (bridge) machine heating.

Claims

1. a loud speaker is made up of PU ring (1) and PP cone (2) two parts with PU ring PP sound basin; It is characterized in that: described a kind of loud speaker uses the top of PU ring PP sound basin to be PU ring (1); The bottom is PP cone (2); PP cone (2) is composited through glue with PU ring (1), and the primary raw material that described PU ring (1) is adopted is the TPUE macromolecular material, forms through the plastics sucking moulding processes.