CN1174521C

CN1174521C - Positioning and processing method of internal coil of antenna

Info

Publication number: CN1174521C
Application number: CNB011043121A
Authority: CN
Inventors: 张玉斌
Original assignee: YAODENG SCIENCE AND TECHONLOGY CO Ltd
Current assignee: YAODENG SCIENCE AND TECHONLOGY CO Ltd; Auden Techno Corp
Priority date: 2001-02-23
Filing date: 2001-02-23
Publication date: 2004-11-03
Anticipated expiration: 2021-02-23
Also published as: CN1371143A

Abstract

The present invention relates to a method for positioning and processing an internal coil of an antenna. The internal coil of the antenna comprises set functional elements, such as a coil diameter, a coil pitch, a total length, etc., and a guiding coil can form a positioning column integrated with the coil into a whole by plastics in an injection molding way so as to fix the set coil diameter, the coil pitch and the total length; then, a semi-finished product in the fixed set shape can be arranged in another injection molding machine to manufacture an outer shell body of the antenna; thereby, the internal coil of the antenna can be quickly assembled at a double speed. The method of the present invention is particularly suitable for volume production in factories, and can greatly raise the quality of antenna products due to the effective maintenance of the irregular shape of the coil.

Description

The positioning and processing method of internal coil of antenna

Technical field

The positioning and processing method of internal coil of the relevant a kind of antenna of the present invention refers to that especially this coil that is positioned at antenna inside can be finalized the design with injection molding material earlier, and coating and injection moulding shell molds body keeps the shape function of former setting with certain Inside coil again.

Background technology

Establishing the helical coil antenna that forms with the metal wire silver lap is main element as transmitting-receiving frequency, and this type of helical coil antenna (helix antenna) structure all has influence on the function of entire antenna in every respect.As British patent the 2nd, 206, No. 243 coil antenna, it comprises coil diameter (Diameter ofwire), all has influence on the function that should have and set of entire antenna apart from (pitch of helix), total length (overall length) etc. as coil method (Material of wire), internal coil diameter (corediameter of helix), the circle that uses the copper facing steel.

The general equipment that uses this type of coil antenna, with the mobile phone is example, it is the inner via hole that this coil is placed an insulating coating pipe, coil is loaded in the outer tube endoporus with flexible axial compression state group, because the characteristic of coil, this kind package assembly can cause the influence that is difficult to expect to coil turn distance and total length, that is, coil after the assembling has circle apart from changing the non-puzzlement for originally setting of the total length after the assembling.Comply with above-mentioned conventional coil assembled configuration when a large amount of production, the phenomenon that causes each antenna quality to differ especially easily.

This type of coil antenna now not only is used for simple transmitting-receiving single-frequency, with Japan Patent 1997-320748 number is example, it is located at the coil (coil) of an outer tube inside, can lack because of an interior elongation of stretching into the adjustment part (adjusting member) of coil inside by the outer tube outside to determine its resonance frequency (resonance frequency).Certainly its resonance frequency obtain key elements such as the diameter that also is decided by this coil, material, circle distance, length, can't grasp really as if these key elements, then the resonance frequency of desiring to reach promptly is difficult to reach.

Moreover, the mobile phone of Shi Yonging is more than one frequency sometimes now, 900KHZ and 1800KHZ as double frequency, it can have the whole bag of tricks and structure certainly and make dual-band antenna, as above-mentioned British patent the 2nd, the linear conductor (linearconductor) that promptly stretches in this coil with a long loop and for 206, No. 243 constitutes this double frequency coil antenna (dual-frequency helical antenna).But in coil design recently, what for to using the single coil that contains the different density section to form double frequency.This kind coil is shown in accompanying drawing of the present invention, and it has close-packed section (circle is apart from shorter) and distant-packed section (circle is apart from longer) in the total length of same coil, with these two kinds of required frequencies of common formation.Therefore, the maintenance of the different circle of this kind coil distance is quite important, but the package assembly of coil antenna commonly used but easily because of this coil of elastic compression destroys its spacing that sets shape and length, and influences its due function.

Summary of the invention

For this reason, purpose of the present invention is promptly providing a kind of positioning and processing method of internal coil of antenna, it mainly is that the coil of making according to the circle footpath that sets, circle distance, length is already inserted in the mould, and can be by this coil each constitute in addition moulding location of circle and the gap injected plastic that constitutes circle, functional imperative such as circle footpath that above-mentioned coil sets, circle distance, length are effectively determined, make the required outer tube of this coil again, the production product mass-energy of this type of coil antenna is further improved, and make in the workshop volume production operation more convenient.

Purpose of the present invention can realize by following mode, a kind of positioning and processing method of internal coil of antenna, it is characterized in that, the Inside coil of this antenna contains the circle footpath of setting, circle distance and total length functional imperative, this coil forms as one by injection molding and the reference column that forms with plastics, with the fixing above-mentioned circle footpath that sets, circle apart from and total length.

The present invention is further characterized in that: this coil is to insert in the mould up and down that contains mould chamber that matches with it for injection mo(u)lding and coil all-in-one-piece reference column; This coil traverse and makes injection moulding machine with the direction injected plastic vertical with this coil in the default mould chamber of mould up and down; This can cooperate the associated antenna element with the coil that reference column becomes one, further puts into another injection moulding machine, injection mo(u)lding antenna casing body outside it; Or above-mentionedly can cooperate the associated antenna element with the coil that reference column becomes one, with one the shell body of injection mo(u)lding be assembled into finished product.

Another kind of the present invention based on similar techniques means implementation method is: a kind of positioning and processing method of internal coil of antenna, it is characterized in that, the Inside coil of antenna contains circle footpath, circle distance and the total length functional imperative of setting, this coil can be inserted an injection moulding machine up and down in the mould that matches of mould, be provided with plastics formation and coil all-in-one-piece reference column, with the fixing above-mentioned circle footpath that sets, circle distance and total length; This coil traverse and makes injection moulding machine with the direction injected plastic vertical with this coil in the mould chamber of mould up and down; This can cooperate the associated antenna element with the coil that reference column becomes one, further puts into another injection moulding machine with the contoured beam antenna shell body; Or this can cooperate the associated antenna element with the coil that reference column becomes one, is assembled into finished product with a shell body of making in addition.

The present invention is for the location processing of antenna Inside coil, only need send into and make this one reference column in the injection moulding machine, these semi-finished product can be sent into then and make complete antenna product in another injection moulding machine, its process velocity is rapid and convenient very, produce speed far above traditional antenna assemblies mode, and be suitable for the volume production operation in the factory especially; Simultaneously the product of making through a mode is thus set the anxiety that shape does not have distortion fully because of coil, and its quality will more reliable and stable, and have value on the industry highly.

Description of drawings

Fig. 1 is that schematic flow sheet is made in preferred embodiment of the present invention;

Fig. 2 is the adoptable mould molding mode schematic diagram of Figure 1B flow process.

Embodiment

See also shown in the figure l, being to use in the antenna of mobile phone as accompanying drawing is example, it roughly is provided with one for the joint chair 10 that is plugged in mobile phone end face preformed hole, generally be provided with and expose contact flat spring 11 (consulting Fig. 1 C) at this type of joint chair 10, after inserting mobile phone end face endoporus, can form electric connecting for it with the mobile phone internal control circuit; This shell fragment 11 aspect in addition then can be connected with coil in antenna inside.

Above-mentioned joint chair 10 is typically provided with metal extension bar 13 for cooperating joint chair 10 to locate a required coil 20.In illustrated embodiment,, circle such as generally contain and also can be applicable to this method apart from coil 20 though this coil 20 is provided with close-packed section 22 and distant-packed section 24.Basically, the present invention is applicable to this type of coil as communication element, and it contains and cooperates equipment, body, required frequency and make predefined circle apart from, circle directly and key elements such as length, and is all applicable.

See also shown in Figure 1ly again, the present invention has set coil 20 injection mo(u)ldings of shape such as plastic cement and so on material to this, and forms the reference column 40 (consulting Figure 1B) that becomes one with coil 20.This reference column 40 no matter after the moulding coil 20 be wound in its outer peripheral face, or make coil 20 by local or all be coated in reference column 40 constituent materials, all do not influence the function after these wire coil 20 energisings.And most importantly, by the plastics reference column 40 that this and coil are combined into one, the circle of coil original start footpath, circle apart from and total length etc. all can be kept really.Then, can shown in Fig. 1 C, make required shell body 60 with coil 20 peripheries that reference column 40 is combined into one at this.This shell body 60 also can be made in addition certainly again and be assembled, and also can use injection molding to be made.

For constituting the reference column 40 that this and coil 20 become one, optimal mode is, sees also Fig. 2,

default injection mold

81,82 up and down, these up and down

injection mold

81,82 can be provided with for the mould chamber 83 relatively up and down of inserting coil 20 and local extension bar 13 length.Coil 20 can be inserted in the mould chamber 83 in the traverse mode,

injection mold

81,82 up and down can be installed in the vertical plastic injection moulding machine then, with plastics with go out this reference column 40 with coil 20 vertical direction injection mo(u)ldings as shown in Figure 2.Because plastics slightly are flow-like and push mould with the screw mechanism pressurization at the make-up machine injection-molded plastic, plastics can be full of whole mould chamber 83 with the gap injection that constitutes circle along coil 20 each formation circle, whole winding 20 thereby can become one with the plastics plastotype, and constitute required reference column 40.

Because the circle that coil 20 sets footpath, circle distance and total length are all fixed with said procedure, therefore, it is particularly suitable for semi-finished product shown in Figure 1B are sent in another group mould, makes required shell body 60 in the Overmolded mode of injection moulding.

Above illustrated embodiment is only with for illustrating the present invention, be familiar with not leaving the present invention's spirit category the dealer of this delegation various simple and easy distortion and the modification that can do, all must include in following claim.

Claims

1, a kind of positioning and processing method of internal coil of antenna, it is characterized in that: this antenna is circle footpath, circle distance and the total length functional imperative that Inside coil contains setting, by plastics are injected in the coil, make it the reference column that forms as one with coil, with the fixing above-mentioned circle footpath that sets, circle apart from and total length.

2, the positioning and processing method of internal coil of antenna as claimed in claim 1 is characterized in that: this coil is to insert in the mould up and down that contains mould chamber that matches with it, and with the injection mo(u)lding reference column, reference column and coil molding are one.

3, the positioning and processing method of internal coil of antenna as claimed in claim 1 is characterized in that: in the mould chamber of this coil traverse mould about default, and make injection moulding machine with the direction injected plastic vertical with this coil.

4, as the positioning and processing method of internal coil of claim 1,2 or 3 described antennas, it is characterized in that: this can cooperate the associated antenna element with the coil that reference column becomes one, further puts into another injection moulding machine with the contoured beam antenna shell body.

5, as the positioning and processing method of internal coil of claim 1,2 or 3 described antennas, it is characterized in that: this cooperates the associated antenna element with the coil that reference column becomes one, is assembled into finished product with an in type shell body.

6, the positioning and processing method of internal coil of antenna as claimed in claim 1, it is characterized in that: the Inside coil of antenna contains circle footpath, circle distance and the total length functional imperative of setting, this coil is inserted an injection moulding machine up and down in the mould that matches of mould, be provided with plastics form with coil all-in-one-piece reference column with the fixing above-mentioned circle footpath that sets, circle apart from and total length.

7, the positioning and processing method of internal coil of antenna as claimed in claim 6 is characterized in that: this coil traverse and makes injection moulding machine with the direction injected plastic vertical with this coil in the mould chamber of mould up and down.

8, as the positioning and processing method of internal coil of claim 6 or 7 described antennas, it is characterized in that: this cooperates the associated antenna element further to put into another injection moulding machine with the contoured beam antenna shell body with the coil that reference column becomes one.

9, as the positioning and processing method of internal coil of claim 6 or 7 described antennas, it is characterized in that: this cooperates the associated antenna element with the coil that reference column becomes one, is assembled into finished product with a shell body of making in addition.