CN207638825U

CN207638825U - The connection structure of standard microphone and its back pole plate and contact electrode

Info

Publication number: CN207638825U
Application number: CN201721164625.7U
Authority: CN
Inventors: 郑虎鸣; 贺志坚; 刘艳; 温增丰
Original assignee: Transound Electronics Co Ltd
Current assignee: Transound Electronics Co Ltd
Priority date: 2017-09-12
Filing date: 2017-09-12
Publication date: 2018-07-20
Anticipated expiration: 2027-09-12

Abstract

The utility model discloses the connection structure of a kind of standard microphone and its back pole plate and contact electrode, including first shell, second shell, back pole plate, contact electrode and back-pole base, the first shell and second shell are adapted connection, be formed in the first shell axially through installation cavity, aforementioned back pole plate, contact electrode and back-pole base be installed in installation cavity；There is trunk portion, the trunk portion to be welded on back pole plate for contact both the electrode and back pole plate split settings assembling, the contact electrode；Take this, back pole plate is designed with contact electrode using separate structure, process it is simple and convenient, improve make yield, reduce the production cost, simultaneously, local attrition component can be subsequently directed to be replaced, maintenance cost is reduced, and, split-type design can improve sound quality and design application flexibility according to unrestricted choice unlike material is needed.

Description

The connection structure of standard microphone and its back pole plate and contact electrode

Technical field

The utility model is related to standard microphone field technology, refers in particular to a kind of standard microphone and its back pole plate and connect The connection structure of touched electrode.

Background technology

In the prior art, the back pole plate in standard microphone is an integral structure with contact electrode, is typically used stainless Steel material makes, and general making step is that first vehicle goes out integral structure, reprocesses hole, is then coated with film, complex manufacturing process And it is difficult, cost of manufacture is higher, and it is relatively low to make yield；In addition, in actual application, once local damage needs entirely more It changes, causes maintenance cost higher.

Utility model content

In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of standard wheat The connection structure of gram wind and its back pole plate and contact electrode, processing is simple and convenient, improves and makes yield, reduces and be fabricated to This, meanwhile, it can subsequently be directed to local attrition component and be replaced, reduce maintenance cost, and, split-type design can be according to needing freedom Unlike material is selected, sound quality and design application flexibility are improved.

To achieve the above object, the utility model is using following technical solution：

A kind of connection structure of back pole plate and contact electrode, is used for standard microphone, includes the contact of split settings There is trunk portion, the trunk portion to be welded on back pole plate for electrode and back pole plate, the contact electrode.

As a preferred embodiment, the trunk portion includes the first trunk portion and the second trunk portion, second cylinder Portion is integrally upwardly extended from the first trunk portion, second trunk portion it is upward convex be equipped with contact site, first trunk portion, Second trunk portion, contact site outer diameter become smaller successively；The back pole plate be equipped with the matched center hole portion of contact site, it is described Contact site adapts in the hole portion of center.

As a preferred embodiment, the contact electrode uses stainless steel, the back pole plate to use brass.

As a preferred embodiment, the back pole plate by be covered with can persistence charge electret film layer plank rush It presses.

A kind of standard microphone, including first shell, second shell, back pole plate, contact electrode and back-pole base, described the One shell and second shell are adapted connection, be formed in the first shell axially through installation cavity, aforementioned back pole plate connects Touched electrode and back-pole base are installed in installation cavity；Contact both the electrode and back pole plate split settings assembling, the contact There is electrode trunk portion, the trunk portion to be welded on back pole plate.

As a preferred embodiment, limited step is formed in the installation cavity, the upper surface of the back-pole base is butted on limit On the step of position, be equipped with externally threaded lock ring below back-pole base, installation cavity internal face corresponds to be formed with below back-pole base it is interior The external screw thread of screw thread, the lock ring adapts at internal thread, and the lower face of aforementioned back-pole base is limited to lock ring.

As a preferred embodiment, the first trunk portion bottom of the contact electrode is concave up is equipped with the first mounting hole, preceding It states back-pole base and is equipped with the second mounting hole, be locked in the first mounting hole after passing through the second mounting hole from bottom to top by screw.

As a preferred embodiment, the first shell includes first annular portion and the second ring part, second ring Shape portion integrally upwardly extends to be formed from first annular portion upper surface, and the first spiral shell is convexly equipped in the outside wall surface of second ring part The internal face of line, second shell is equipped with the second screw thread, and first screw thread is adapted with the second screw thread；

Further include the film inner ring for carrying third screw thread and the film outer shroud for being connected to film inner ring side, aforementioned second ring part Upper surface, which integrally upwardly extends, is formed with third ring part, and the 4th screw thread, institute are convexly equipped in the outside wall surface of the third ring part The third threaded adapter of film inner ring is stated at the 4th screw thread；Film outer shroud upper surface extends internally and has annular edge, the annular Side is located on the upper surface of film inner ring.

The utility model has clear advantage and advantageous effect compared with prior art, specifically, by above-mentioned technology For scheme it is found that it using separate structure mainly by designing back pole plate with contact electrode, processing is simple and convenient, improves and makes Yield reduces the production cost, meanwhile, it can subsequently be directed to local attrition component and be replaced, reduce maintenance cost, and, point The design of body formula can improve sound quality and design application flexibility according to unrestricted choice unlike material is needed；Using there is this kind of split type back of the body The standard microphone of pole plate and contact electrode structure also has the ingenious conjunction of overall construction design after aforementioned improved effect The advantages such as reason are conducive to microphone test.

More clearly to illustrate the structure feature and effect of the utility model, come below in conjunction with the accompanying drawings with specific embodiment pair The utility model is described in detail.

Description of the drawings

Fig. 1 is the standard microphone assembling dimensional structure diagram of the embodiment of the utility model；

Fig. 2 is the sectional view of the embodiment of the utility model；

Fig. 3 is the decomposition texture schematic diagram of the embodiment of the utility model；

Fig. 4 be the utility model embodiment in back pole plate with contact electrode decomposition texture schematic diagram.

Drawing reference numeral explanation：

10, electrode 11, the first trunk portion are contacted

111, the first mounting hole 12, the second trunk portion

13, contact site 20, back pole plate

21, center hole portion 22, the first acoustic aperture

30, first shell 31, first annular portion

32, the second ring part 321, third ring part

40, second shell 41, third trunk portion

411, downside groove 412, the second acoustic aperture

413, the first ventilative chamber 414, the second ventilative chamber

50, back-pole base 51, the second mounting hole

60, installation cavity 61, limited step

70, the first gasket 71, the second gasket

72, lock ring 73, film inner ring

74, film outer shroud 741, annular edge

75, metal mesh 80, screw.

Specific implementation mode

Please refer to figs. 1 to 4, that show the concrete structures of the preferred embodiment of the utility model.A kind of back of the body The connection structure of pole plate and contact electrode, is used for standard microphone, as shown in figure 4, including contact electrode 10 and back pole plate 20, the back pole plate 20 by be covered with can the plate stamping of electret film layer of persistence charge form, electret film layer Can persistence charge, wherein：

There is the contact electrode 10 trunk portion, the trunk portion to be welded on back pole plate 20, and the trunk portion includes First trunk portion 11 and the second trunk portion 12, second trunk portion 12 are integrally upwardly extended from the first trunk portion 11, institute State that the second trunk portion 12 is upward convex to be equipped with contact site 13, first trunk portion 11, the second trunk portion 12, contact site 13 outer diameter Become smaller successively；The back pole plate 20 be equipped with 13 matched center hole portion 21 of contact site, during the contact site 13 adapts to In heart hole portion 21；On the back pole plate 20 several first acoustic aperture 22 are equipped with around 21 space type of center hole portion；

In the present embodiment, it is that first vehicle goes out when making to contact electrode 10 and back pole plate 20 as two parts of seperated design Contact electrode 10 goes out back pole plate 20, then the two is connected and fixed through laser welding mode；Wherein, the contact electrode 10 is adopted With stainless steel, the back pole plate 20 uses brass；Due to using brass, sound quality is good, easy punching press, while having and can add well Work, moreover, brass sheet nickel plating former material, usually therefore overlay film has directly stamped out and, subsequently no longer needed former material Overlay film；It should be noted that the material of contact electrode 10 and back pole plate 20 can not limit, material selects according to need, can To use identical or different material.

A kind of standard microphone, as shown in Figure 1 to Figure 3, including first shell 30, second shell 40, back pole plate 20, contact Electrode 10 and back-pole base 50, in the present embodiment, first shell 30 and second shell 40 are column structure, the first shell 30 and second shell 40 be adapted connection；Be formed in the first shell 30 axially through installation cavity 60, aforementioned back pole plate 20, it contacts electrode 10 and back-pole base 50 is installed in installation cavity 60, limited step 61 is formed in the installation cavity 60, it is described The upper surface of back-pole base 50 is butted on limited step 61, and in the present embodiment, the upper surface of the back-pole base 50 passes through the first pad Piece 70 is butted on limited step 61, and, the outside wall surface of the back-pole base 50 is in contact with the medial surface of installation cavity 60, described to connect The split settings assembling of both touched electrode 10 and back pole plate 20；

The first shell 30 includes first annular portion 31 and the second ring part 32, second ring part 32 from first 31 upper surface of ring part integrally upwardly extends to be formed, and the first screw thread is convexly equipped in the outside wall surface of second ring part 32, aforementioned Second shell 40 is equipped with the second screw thread, and first screw thread is adapted with the second screw thread.

The second shell 40 has third trunk portion 41, the bottom of the third trunk portion 41 concave up recessed equipped with downside Slot 411, the downside groove 411 are located at 60 periphery of installation cavity；The third trunk portion 41 is equipped with the second acoustic aperture 412 between two parties, In the present embodiment, second acoustic aperture 412 is located at aforementioned first acoustic aperture 22 on same axis；Second acoustic aperture 412 weeks The several first ventilative chambers 413 are equipped with along annular spacing, the first ventilative chamber 413 runs through outer from 41 upper surface of third trunk portion Side；The second ventilative chamber 414 is equipped between the first adjacent ventilative chamber 413, the second ventilative chamber 414 is from third trunk portion 41 Upper surface runs through lateral surface；In the present embodiment, 11 bottom of the first trunk portion of the contact electrode 10 is concave up is equipped with the One mounting hole 111, aforementioned back-pole base 50 are equipped with the second mounting hole 51, and the second mounting hole 51 is passed through from bottom to top by screw 80 After be locked in the first mounting hole 111, in the present embodiment, the second pad is additionally provided between screw 80 and the lower face of back-pole base 50 Piece 71, it is preferable that the second gasket 71 is metal gasket.

Further include carrying externally threaded lock ring 72, lower end position is formed with internal thread, the lock ring in aforementioned installation cavity 60 72 external screw thread adapts at internal thread, and the lower face of aforementioned back-pole base 50 is limited to lock ring 72.

Further include film inner ring 73 with third screw thread and is connected to the film outer shroud 74 of 73 side of film inner ring, aforementioned second 32 upper surface of ring part, which integrally upwardly extends, is formed with third ring part 321, projection in the outside wall surface of the third ring part 321 There is the 4th screw thread, the third threaded adapter of the film inner ring 73 is at the 4th screw thread；74 upper surface of film outer shroud extends internally There are annular edge 741, the annular edge 741 to be connect with the upper surface of film inner ring 73.

Further include for sealing the metal mesh 75 for setting 60 upper end opening of installation cavity, the metal mesh 75 is fixed on aforementioned toroidal side 741 upper surfaces, in the present embodiment, the metal mesh 75 can be steel mesh, with to prevent layer.

In conclusion the design focal point of the utility model is, by using separate structure to back pole plate and contact electrode Design, processing is simple and convenient, improves and makes yield, reduces the production cost, meanwhile, it can subsequently be directed to local attrition component and carry out more It changes, reduces maintenance cost, and, split-type design can improve sound quality and design application according to unrestricted choice unlike material is needed Flexibility；Using the standard microphone for having this kind of split type back pole plate and contact electrode structure, after aforementioned improved effect, Also have overall construction design it is ingenious rationally etc. advantages, be conducive to microphone test.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change Change and modify, is still within the scope of the technical solutions of the present invention.

Claims

1. the connection structure of a kind of back pole plate and contact electrode, is used for standard microphone, it is characterised in that：It is set including fission There is trunk portion, the trunk portion to be welded on back pole plate for the contact electrode and back pole plate set, the contact electrode.

2. the connection structure of back pole plate according to claim 1 and contact electrode, it is characterised in that：The trunk portion includes There are the first trunk portion and the second trunk portion, second trunk portion integrally to be upwardly extended from the first trunk portion, described second Trunk portion it is upward convex be equipped with contact site, first trunk portion, the second trunk portion, contact site outer diameter become smaller successively；The back of the body Pole plate, which is equipped with, to be adapted to the matched center hole portion of contact site, the contact site in the hole portion of center.

3. the connection structure of back pole plate according to claim 1 and contact electrode, it is characterised in that：The contact electrode is adopted With stainless steel, the back pole plate uses brass.

4. the connection structure of back pole plate according to claim 1 and contact electrode, it is characterised in that：The back pole plate is by covering Have can the plate stamping of electret film layer of persistence charge form.

5. a kind of standard microphone, it is characterised in that：Including first shell, second shell, back pole plate, contact electrode and backplane Seat, the first shell and second shell be adapted connection, be formed in the first shell axially through installation cavity, it is aforementioned Back pole plate, contact electrode and back-pole base are installed in installation cavity；Contact both the electrode and back pole plate split settings assembling, There is the contact electrode trunk portion, the trunk portion to be welded on back pole plate.

6. standard microphone according to claim 5, it is characterised in that：The trunk portion includes the first trunk portion and Two trunk portions, second trunk portion are integrally upwardly extended from the first trunk portion, and second trunk portion is upward convex to be equipped with Contact site, first trunk portion, the second trunk portion, contact site outer diameter become smaller successively；The back pole plate is equipped with and contacts The matched center hole portion in portion, the contact site adapt in the hole portion of center.

7. standard microphone according to claim 5, it is characterised in that：The back pole plate can persistence charge by being covered with The plate stamping of electret film layer form.

8. standard microphone according to claim 5, it is characterised in that：Limited step, institute are formed in the installation cavity The upper surface for stating back-pole base is butted on limited step, is equipped with externally threaded lock ring, installation cavity internal face below back-pole base It is formed with internal thread below corresponding back-pole base, the external screw thread of the lock ring adapts at internal thread, the lower face of aforementioned back-pole base It is limited to lock ring.

9. standard microphone according to claim 6, it is characterised in that：It is described contact electrode the first trunk portion bottom to It is concavely provided with the first mounting hole, aforementioned back-pole base is equipped with the second mounting hole, and the second mounting hole is passed through from bottom to top by screw After be locked in the first mounting hole.

10. standard microphone according to claim 5, it is characterised in that：The first shell include first annular portion with And second ring part, second ring part integrally upwardly extend to be formed from first annular portion upper surface, second ring part Outside wall surface on be convexly equipped with the first screw thread, the internal face of second shell is equipped with the second screw thread, first screw thread and the second spiral shell Line is adapted；

Further include the film inner ring for carrying third screw thread and the film outer shroud for being connected to film inner ring side, aforementioned second ring part upper end Face, which integrally upwardly extends, is formed with third ring part, and the 4th screw thread, the film are convexly equipped in the outside wall surface of the third ring part The third threaded adapter of inner ring is at the 4th screw thread；Film outer shroud upper surface extends internally and has annular edge, the annular edge position In on the upper surface of film inner ring.