CN102291659B - Method and device for making insulating isolation ring in microphone shell - Google Patents
Method and device for making insulating isolation ring in microphone shell Download PDFInfo
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- CN102291659B CN102291659B CN 201110158348 CN201110158348A CN102291659B CN 102291659 B CN102291659 B CN 102291659B CN 201110158348 CN201110158348 CN 201110158348 CN 201110158348 A CN201110158348 A CN 201110158348A CN 102291659 B CN102291659 B CN 102291659B
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- microphone case
- syringe needle
- isolation ring
- insulating isolation
- coating syringe
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Abstract
The invention discloses a method and a device for making an insulating isolation ring in a microphone shell. By a numerical control micro-coating technology, the insulating isolation ring is formed on the inner wall of the microphone shell, the thickness of the insulating isolation ring, the sizes of an upper edge, a lower edge and the like are easily controlled, and the design requirement can be completely met. Therefore, a convenient condition is provided for automatic assembly of an electret microphone.
Description
Technical field
The present invention relates to the manufacture method of insulating isolation ring in a kind of microphone case, also relate to the manufacturing installation of insulating isolation ring in a kind of microphone case.
Background technology
Disclose multiple electret microphone in prior art, they all are equipped with the capacitor unit that is made of battery lead plate and film, are used for receiving sound wave to convert the signal of telecommunication of expression sound wave to.
as shown in Figure 8, the operation principle of microphone is as follows: when external sound after the pore on microphone case 5 passes to vibrating diaphragm 3, vibrating diaphragm 3 produces vibration, this vibration changes the distance of 4 of vibrating diaphragm 3 and back pole plates, vibrating diaphragm 3 has corresponding variation with the capacitance of the electric capacity that back pole plate 4 forms, because the electret static content on back pole plate 4 can not change, the electric weight that is capacitor is constant, and the variation of capacitance just causes the variation of capacitor voltage at both ends, the variation of this voltage need to pass to the printed substrate 6 of microphone and carry out signal by the electronic devices and components on printed substrate 6 and process, wherein back pole plate 4 electrically connects by the input of microphone case 5 with printed substrate 6, vibrating diaphragm 3 electrically connects by metal ring body 1 and printed substrate 6 another inputs, the effect of insulating isolation ring 2 is to guarantee that metal ring body 1 is not short-circuited with microphone case 5, the insulating isolation ring 2 of prior art is sleeved on described metal ring body 1, this structure is very difficult when assembling, and make the automation assembling become and to realize.
For above-mentioned technical problem, as shown in Figure 6, people have proposed the function that insulation enamelled coating that inner surface at microphone case 5 arranges a ring-type is realized insulating isolation ring 2, because on insulating isolation ring 2, the required precision of lower limb is high, and the diameter of microphone case 5 is less, general diameter adopts the rear reprocessing of japanning can't realize between 4mm-8mm at all; Adopt the method for isolation coating, because of the restriction of its volume, precision is uncontrollable.
Summary of the invention
Technical problem to be solved by this invention is to provide the manufacture method of insulating isolation ring in a kind of microphone case.
For solving the problems of the technologies described above, the first technical scheme of the present invention is: the manufacture method of insulating isolation ring in microphone case, described microphone case is the cylindrical shape of an end opening, described insulating isolation ring is fixed in described microphone case, so that two signal paths of electret microphone are separated, comprise the following steps:
The first step is fixed on described microphone case opening upwards on the shell fixture;
The coating syringe needle that second step will apply insulating varnish inserts in described microphone case, and the degree of depth that described coating syringe needle inserts is corresponding with the lower edge of described insulating isolation ring;
The 3rd described coating syringe needle of step transverse shifting is to close described microphone case inwall;
The 4th step was sent into insulating varnish in described coating syringe needle, make simultaneously described coating syringe needle around the axis rotation of described microphone case, formed the little ring of insulation of a sealing;
The 5th step described coating syringe needle certain distance that moves up, then repeated for the 4th step and the 5th step, form the little ring of a plurality of described insulation at described microphone case inwall, until form the top edge of described insulating isolation ring;
The 6th step stopped sending into insulating varnish in described coating syringe needle, and the described coating syringe needle of transverse shifting leaves described microphone case inwall;
The 7th goes on foot the described coating syringe needle that moves up leaves described microphone case inner chamber;
The 8th step was taken off described microphone case from described shell fixture, and natural drying or heating, drying is completed production.
As preferred technical scheme, the height of the little ring of described insulation decides by the insulating varnish adding amount of regulating described coating syringe needle and/or the circular velocity of regulating described coating syringe needle.
As preferred technical scheme, between the little ring of described insulation, the next-door neighbour forms described insulating isolation ring.
As preferred technical scheme, the little ring of described insulation has each other certain intervals and forms described insulating isolation ring.
For solving the problems of the technologies described above, the second technical scheme of the present invention is: the manufacture method of insulating isolation ring in microphone case, described microphone case is the cylindrical shape of an end opening, described insulating isolation ring is fixed in described microphone case, so that two signal paths of electret microphone are separated, comprise the following steps:
The first step is fixed on described microphone case opening upwards on the shell fixture;
The coating syringe needle that second step will apply insulating varnish inserts in described microphone case, and the degree of depth that described coating syringe needle inserts is corresponding with the lower edge of described insulating isolation ring;
The 3rd described coating syringe needle of step transverse shifting is to close described microphone case inwall;
The 4th step was sent into insulating varnish in described coating syringe needle, make simultaneously described coating syringe needle around the axis rotation of described microphone case, and described coating syringe needle is progressively moved upward, form a spiral yarn shaped described insulating isolation ring, the two ends up and down of described spiral yarn shaped described insulating isolation ring are top edge and the lower limb of corresponding described insulating isolation ring respectively;
The 5th step stopped sending into insulating varnish in described coating syringe needle, and the described coating syringe needle of transverse shifting leaves described microphone case inwall;
The 6th goes on foot the described coating syringe needle that moves up leaves described microphone case inner chamber;
The 7th step was taken off described microphone case from described shell fixture, and natural drying or heating, drying is completed production.
As preferred technical scheme, the height of the little ring of described insulation decides by the insulating varnish adding amount of regulating described coating syringe needle and/or the circular velocity of regulating described coating syringe needle.
As preferred technical scheme, between described helix, the next-door neighbour forms described insulating isolation ring.
As preferred technical scheme, described helix has each other certain intervals and forms described insulating isolation ring.
Another technical problem to be solved by this invention is to provide a kind of device of making insulating isolation ring in microphone case, and this device comprises:
The shell fixture, described shell fixture is provided with microphone case clamping blind hole, described blind hole and described microphone case tight fit;
The numerical control working head, described working head has the degree of freedom of transverse shifting and vertical movement, is connected with horizontal mobile device and vertical mobile device;
Numerical-control motor is arranged on described numerical control working head;
Needle holder is arranged on the axle of described numerical-control motor;
The coating syringe needle is arranged on described needle holder;
Paint feeding apparatus, be arranged on described numerical control working head, comprise paint feeding pump, described painting pump line is connected with the numerical control flux control valve, described numerical control flux control valve pipe is connected with swivel joint, described swivel joint is arranged on described needle holder, and described needle holder is provided with the painting hole that is communicated with described coating syringe needle.
As preferred technical scheme, when described microphone case was positioned at described blind hole, the top edge of described insulating isolation ring was not higher than the upper surface of described blind hole.
Owing to having adopted technique scheme, by numerical control trace coated technique, make the microphone case inwall form insulating isolation ring, and the thickness of described insulating isolation ring and upper and lower edge equidimension are easy to control, can meet design requirement fully, thereby provide the condition that facilitates for the automation of electret microphone assembling.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the present invention one, there is shown the front state of coating beginning, and the numerical control working head is prepared to move downward, and described coating syringe needle is inserted in described microphone case;
Fig. 2 is the structural representation of the embodiment of the present invention one, there is shown described coating syringe needle and inserts the interior state of described microphone case, and the numerical control working head is prepared to move right, and makes described application needle head rest near to described microphone case madial wall;
Fig. 3 is the structural representation of the embodiment of the present invention one, there is shown the state of the nearly described microphone case madial wall of described application needle head rest, and numerical-control motor begins rotation, makes described coating syringe needle rotate and apply along described microphone case madial wall;
Fig. 4 is the structural representation of the embodiment of the present invention one, there is shown described coating syringe needle and constantly rises to form the process of described insulating isolation ring;
Fig. 5 is the structural representation of the embodiment of the present invention one product of completing;
Fig. 6 is the structural representation of embodiment of the present invention product of completing after super-dry;
Fig. 7 is the structural representation that adopts the microphone of assembling product that the embodiment of the present invention is completed;
Fig. 8 is the structural representation of background technology microphone.
In figure: 1-metal ring body; The 2-insulating isolation ring; The 21-little ring that insulate; The 3-vibrating diaphragm; The 4-back pole plate; The 5-microphone case; The 6-printed substrate; 7-shell fixture; 8-applies syringe needle; 9-numerical control working head; The 10-numerical-control motor; The 11-needle holder; The 12-paint feeding pump; 13-numerical control flux control valve; The 14-swivel joint.
Embodiment
Below in conjunction with drawings and Examples, further set forth the present invention.In the following detailed description, only by the mode of explanation, some one exemplary embodiment of the present invention has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that without departing from the spirit and scope of the present invention, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection range of restriction claim.
Embodiment one: as shown in Figures 1 to 4, the manufacture method of insulating isolation ring in microphone case, described microphone case 5 is the cylindrical shape of an end opening, described insulating isolation ring 2 is fixed in described microphone case 5, so that two signal paths of electret microphone are separated, comprise the following steps:
The first step is fixed on the opening upwards of described microphone case 5 on shell fixture 7;
The coating syringe needle 8 that second step will apply insulating varnish inserts in described microphone case 5, and the degree of depth that described coating syringe needle 8 inserts is corresponding with the lower edge of described insulating isolation ring 2;
The 3rd described coating syringe needle 8 of step transverse shifting is to the inwall near described microphone case 5;
The 4th step was sent into insulating varnish in described coating syringe needle 8, make simultaneously described coating syringe needle 8 around the axis rotation of described microphone case 5, formed the little ring 21 of insulation of a sealing;
The 5th step described coating syringe needle 8 certain distance that moves up, then repeated for the 4th step and the 5th step, form the little ring 21 of a plurality of described insulation at described microphone case 5 inwalls, until form the top edge of described insulating isolation ring 2;
The 6th step stopped sending into insulating varnish in described coating syringe needle 8, and the described coating syringe needle 8 of transverse shifting leaves the inwall of described microphone case 5;
The 7th goes on foot the inner chamber that the described coating syringe needle 8 that moves up leaves described microphone case 5;
The 8th step was taken off described microphone case 5 from described shell fixture 7, and natural drying or heating, drying is completed production.
The height of the little ring 21 of described insulation decides by the insulating varnish adding amount of regulating described coating syringe needle 8 and the circular velocity of regulating described coating syringe needle 8.Between the little ring 21 of insulation described in this method, the next-door neighbour forms described insulating isolation ring 2.As shown in Figure 5 and Figure 6, the little ring 21 of described insulation is in paint film forming and dry run, and it is smooth that the surface becomes, thereby satisfy the designing requirement of described insulating isolation ring 2.Certainly, the little ring 21 of described insulation also can adopt the technical scheme that has each other certain intervals and form described insulating isolation ring 2.
Implement the device of said method, as shown in Figures 1 to 4, make the device of insulating isolation ring in microphone case, this device comprises:
Numerical control working head 9, described numerical control working head 9 has the degree of freedom of transverse shifting and vertical movement, is connected with horizontal mobile device and vertical mobile device; Cross feed device and and vertical mobile device be known numerical control feeding device (not shown), no longer repeat to give unnecessary details at this.
Numerical-control motor 10 is arranged on described numerical control working head 9, and its effect is to drive needle holder 11 to rotate, and realizes the annular application job of coating syringe needle 8.
Paint feeding apparatus, be arranged on described numerical control working head 9, comprise paint feeding pump 12, described paint feeding pump 12 pipes are connected with numerical control flux control valve 13, described numerical control flux control valve 13 pipes are connected with swivel joint 14, described swivel joint 14 is arranged on described needle holder 11, and described needle holder 11 is provided with the painting hole that is communicated with described coating syringe needle 8.Described swivel joint 14 is known technology, and its effect is to be rotated pipeline to be connected pipeline with fixed-piping and to connect.
In the present embodiment, when described microphone case 5 was positioned at described blind hole, the top edge of described insulating isolation ring 2 was not higher than the upper surface of described blind hole, and this design guarantees that coating syringe needle 8 described microphone case 5 when coating can not be out of shape.
By numerical control trace coated technique, make microphone case 5 inwalls form insulating isolation ring 2, and the thickness of described insulating isolation ring 2 and upper and lower edge equidimension are easy to control, can meet design requirement fully, thereby for the automation assembling of electret microphone provides the condition that facilitates, the structure of the microphone after assembling as shown in Figure 7.
Embodiment two: referring to figs. 1 through Fig. 4, the present embodiment and embodiment one are basic identical, and difference is:
Described coating syringe needle 8 is around the axis rotation of described microphone case 5, and described coating syringe needle 8 is progressively moved upward, form a spiral yarn shaped described insulating isolation ring 2, the two ends up and down of described spiral yarn shaped described insulating isolation ring 2 are top edge and the lower limb of corresponding described insulating isolation ring 2 respectively; Wherein, between described helix, the next-door neighbour forms described insulating isolation ring 2, and described helix is in paint film forming and dry run, and it is smooth, continuous that the surface becomes.Certainly, described helix also can adopt the version that has certain intervals and form described insulating isolation ring 2 each other.
The present embodiment can adopt the device identical with embodiment one to implement.
Above demonstration and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. the manufacture method of insulating isolation ring in microphone case, described microphone case is the cylindrical shape of an end opening, and described insulating isolation ring is fixed in described microphone case, so that two signal paths of electret microphone are separated, it is characterized in that, comprise the following steps:
The first step is fixed on described microphone case opening upwards on the shell fixture;
The coating syringe needle that second step will apply insulating varnish inserts in described microphone case, and the degree of depth that described coating syringe needle inserts is corresponding with the lower edge of described insulating isolation ring;
The 3rd described coating syringe needle of step transverse shifting is to close described microphone case inwall;
The 4th step was sent into insulating varnish in described coating syringe needle, make simultaneously described coating syringe needle around the axis rotation of described microphone case, formed the little ring of insulation of a sealing;
The 5th step described coating syringe needle certain distance that moves up, then repeated for the 4th step and the 5th step, form the little ring of a plurality of described insulation at described microphone case inwall, until form the top edge of described insulating isolation ring;
The 6th step stopped sending into insulating varnish in described coating syringe needle, and the described coating syringe needle of transverse shifting leaves described microphone case inwall;
The 7th goes on foot the described coating syringe needle that moves up leaves described microphone case inner chamber;
The 8th step was taken off described microphone case from described shell fixture, and natural drying or heating, drying is completed production.
2. the manufacture method of insulating isolation ring in microphone case as claimed in claim 1, is characterized in that, the height of the little ring of described insulation decides by the insulating varnish adding amount of regulating described coating syringe needle and/or the circular velocity of regulating described coating syringe needle.
3. the manufacture method of insulating isolation ring in microphone case as claimed in claim 1, is characterized in that, between the little ring of described insulation, the next-door neighbour forms described insulating isolation ring.
4. the manufacture method of insulating isolation ring in microphone case as claimed in claim 1, is characterized in that, the little ring of described insulation has each other certain intervals and forms described insulating isolation ring.
5. the manufacture method of insulating isolation ring in microphone case, described microphone case is the cylindrical shape of an end opening, and described insulating isolation ring is fixed in described microphone case, so that two signal paths of electret microphone are separated, it is characterized in that, comprise the following steps:
The first step is fixed on described microphone case opening upwards on the shell fixture;
The coating syringe needle that second step will apply insulating varnish inserts in described microphone case, and the degree of depth that described coating syringe needle inserts is corresponding with the lower edge of described insulating isolation ring;
The 3rd described coating syringe needle of step transverse shifting is to close described microphone case inwall;
The 4th step was sent into insulating varnish in described coating syringe needle, make simultaneously described coating syringe needle around the axis rotation of described microphone case, and described coating syringe needle is progressively moved upward, form a spiral yarn shaped described insulating isolation ring, the two ends up and down of described spiral yarn shaped described insulating isolation ring are top edge and the lower limb of corresponding described insulating isolation ring respectively;
The 5th step stopped sending into insulating varnish in described coating syringe needle, and the described coating syringe needle of transverse shifting leaves described microphone case inwall;
The 6th goes on foot the described coating syringe needle that moves up leaves described microphone case inner chamber;
The 7th step was taken off described microphone case from described shell fixture, and natural drying or heating, drying is completed production.
6. the manufacture method of insulating isolation ring in microphone case as claimed in claim 5, is characterized in that, the height of the little ring of described insulation decides by the insulating varnish adding amount of regulating described coating syringe needle and/or the circular velocity of regulating described coating syringe needle.
7. the manufacture method of insulating isolation ring in microphone case as claimed in claim 5, is characterized in that, between described helix, the next-door neighbour forms described insulating isolation ring.
8. the manufacture method of insulating isolation ring in microphone case as claimed in claim 5, is characterized in that, described helix has each other certain intervals and forms described insulating isolation ring.
9. the device of insulating isolation ring in the manufacturing microphone case, is characterized in that, comprising:
The shell fixture, described shell fixture is provided with microphone case clamping blind hole, described blind hole and described microphone case tight fit;
The numerical control working head, described working head has the degree of freedom of transverse shifting and vertical movement, is connected with horizontal mobile device and vertical mobile device;
Numerical-control motor is arranged on described numerical control working head;
Needle holder is arranged on the axle of described numerical-control motor;
The coating syringe needle is arranged on described needle holder;
Paint feeding apparatus, be arranged on described numerical control working head, comprise paint feeding pump, described painting pump line is connected with the numerical control flux control valve, described numerical control flux control valve pipe is connected with swivel joint, described swivel joint is arranged on described needle holder, and described needle holder is provided with the painting hole that is communicated with described coating syringe needle.
10. the device of insulating isolation ring in manufacturing microphone case as claimed in claim 9, is characterized in that, when described microphone case was positioned at described blind hole, the top edge of described insulating isolation ring was not higher than the upper surface of described blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158348 CN102291659B (en) | 2011-06-02 | 2011-06-02 | Method and device for making insulating isolation ring in microphone shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158348 CN102291659B (en) | 2011-06-02 | 2011-06-02 | Method and device for making insulating isolation ring in microphone shell |
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| Publication Number | Publication Date |
|---|---|
| CN102291659A CN102291659A (en) | 2011-12-21 |
| CN102291659B true CN102291659B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110158348 Expired - Fee Related CN102291659B (en) | 2011-06-02 | 2011-06-02 | Method and device for making insulating isolation ring in microphone shell |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103200514B (en) * | 2013-02-05 | 2015-07-08 | 王之华 | Microphone casing internal insulation isolation ring manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741684A (en) * | 2005-09-16 | 2006-03-01 | 潍坊共达电讯有限公司 | Electret capacitor microphone |
| CN2814865Y (en) * | 2005-06-23 | 2006-09-06 | 吴英瑞 | Pick-up device |
| CN200966155Y (en) * | 2006-09-30 | 2007-10-24 | 潍坊共达电讯有限公司 | Improved microphone electric connecting device |
| CN101502825A (en) * | 2009-03-16 | 2009-08-12 | 常州铭赛机器人科技有限公司 | Full-automatic glue-dropping machine |
-
2011
- 2011-06-02 CN CN 201110158348 patent/CN102291659B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2814865Y (en) * | 2005-06-23 | 2006-09-06 | 吴英瑞 | Pick-up device |
| CN1741684A (en) * | 2005-09-16 | 2006-03-01 | 潍坊共达电讯有限公司 | Electret capacitor microphone |
| CN200966155Y (en) * | 2006-09-30 | 2007-10-24 | 潍坊共达电讯有限公司 | Improved microphone electric connecting device |
| CN101502825A (en) * | 2009-03-16 | 2009-08-12 | 常州铭赛机器人科技有限公司 | Full-automatic glue-dropping machine |
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| CN102291659A (en) | 2011-12-21 |
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