CN205488235U - Structure is drawn forth to piezoelectric membrane electrode - Google Patents
Structure is drawn forth to piezoelectric membrane electrode Download PDFInfo
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- CN205488235U CN205488235U CN201521139863.3U CN201521139863U CN205488235U CN 205488235 U CN205488235 U CN 205488235U CN 201521139863 U CN201521139863 U CN 201521139863U CN 205488235 U CN205488235 U CN 205488235U
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- piezoelectric membrane
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- holding wire
- pole
- output area
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Abstract
The utility model provides a structure is drawn forth to piezoelectric membrane electrode, including the piezoelectric membrane, the piezoelectric membrane includes the base plate, the two sides of base plate is positive pole -face and negative pole face respectively, positive pole -face covers and has the positive electrode coating, the negative pole face covers there is the negative electrode coating, positive pole -face or negative pole face still are equipped with output area opposite rather than polarity and the isolated insulation, the electrode coating of output area and another pole -face switches on, output area is connected with the signal line with the pole -face at this output area place. A structure is drawn forth to piezoelectric membrane electrode in, derive with the one side through changing the electrode that the piezoelectric membrane structure realized the piezoelectric membrane, be favorable to strengthening the reliability of piezoelectric membrane signal, simplified technology, because consequently modes such as piezoelectric membrane and signal line adoption crimping have saved installation space, reduced applied this piezoelectric film sensor's volume in addition.
Description
Technical field
This utility model belongs to piezoelectric membrane application, especially relates to a kind of piezoelectric membrane electrode and draws
Structure.
Background technology
In the prior art, in present piezoelectric thin-film structure, the derivation of both positive and negative polarity typically uses piezoelectricity thin
Film both sides are derived respectively, and this structure easily weakens the reliability gathering signal, and has processing technique complicated
Defect, in piezoelectric membrane is applied, piezoelectric membrane is connected by holding wire with data collecting instruments, connects
Mode many employings riveting, this connected mode takes up room relatively big, virtually increases the body of sensor
Long-pending.
Summary of the invention
In view of this, this utility model is directed to a kind of piezoelectric membrane electrode lead-out structure, to solve pressure
Conductive film both sides derive the signal caused bulky problem that is more weak and that cause because of riveting with holding wire.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of piezoelectric membrane electrode lead-out structure, including piezoelectric membrane and holding wire, described piezoelectric membrane
One monopole plane is provided with bipolarity bonding pad, and described bipolarity bonding pad connects holding wire.
Preferably, described piezoelectric membrane includes that substrate, the two sides of described substrate are respectively positive pole-face and negative pole
Face, described positive pole-face is covered with anelectrode coating, and described negative pole face is covered with negative electrode coating, described bipolarity
Bonding pad is described positive pole-face or negative pole face is additionally provided with the output area with its opposite polarity isolated insulation, institute
State the electrode coating conducting of output area and another pole-face.
Preferably, described holding wire is FPC holding wire.
Further, the bipolarity bonding pad of described piezoelectric membrane and FPC holding wire are by applying this piezoelectricity
The housing of the device of thin film compresses and connects.
Further, the bipolarity bonding pad of described FPC holding wire and piezoelectric membrane is also by conducting resinl
Paste fixing.
Further, bipolarity bonding pad and the FPC holding wire of described piezoelectric membrane is connected by conductive material
Connect.
Relative to prior art, a kind of piezoelectric membrane electrode lead-out structure described in the utility model have with
Lower advantage:
In a kind of piezoelectric membrane electrode lead-out structure described in the utility model, tie by changing piezoelectric membrane
Structure realizes the electrode the same face of piezoelectric membrane derives, and is conducive to strengthening the reliability of piezoelectric membrane signal, letter
Change technique, used the modes such as crimping additionally, due to piezoelectric membrane and holding wire, therefore save installation sky
Between, reduce the volume applying this piezoelectric film sensor.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is that in a kind of piezoelectric membrane electrode lead-out structure described in the utility model, the positive pole-face of piezoelectric membrane shows
It is intended to；
Fig. 2 is that in a kind of piezoelectric membrane electrode lead-out structure described in the utility model, piezoelectric membrane negative pole face shows
It is intended to；
Fig. 3 is that a kind of piezoelectric membrane electrode lead-out structure described in the utility model is applied to dividing of embodiment one
Solve schematic diagram；
Fig. 4 is that a kind of piezoelectric membrane electrode lead-out structure described in the utility model is applied to embodiment two
Decomposing schematic representation；
Fig. 5 is that a kind of piezoelectric membrane electrode lead-out structure described in the utility model is applied in embodiment two
Silica gel contact bottom surface structure figure；
Fig. 6 is that a kind of piezoelectric membrane electrode lead-out structure described in the utility model is applied to embodiment three
Decomposing schematic representation.
Description of reference numerals:
1-piezoelectric membrane；The positive pole-face of 11-；12-negative pole face；13-anelectrode coating；14-negative electrode coating；
15-positive pole extension area；16-negative pole extension area；17-output area；18-polarity via；2-holding wire；
3-silica gel contact；31-base；32-contact；34-groove；4-upper shell；41-passes through hole；42-rolls over
Foot；5-rivet；6-lower house；61-piezoelectric membrane displacement stroke chamber；62-escape groove；7-silica gel plate；
71-enlarged opening.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", " on ", D score, "front", "rear", "left", "right", " vertically ", " water
Flat ", the orientation that indicates of " top ", " end ", " interior ", " outward " etc. or position relationship be based on attached
Orientation shown in figure or position relationship, be for only for ease of description this utility model and simplify description, and not
Be instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second "
Etc. being only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indication
The quantity of the technical characteristic shown.Thus, the feature defining " first ", " second " etc. can be expressed
Or implicitly include one or more this feature.In description of the present utility model, unless otherwise
Illustrating, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing,
Can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
Logical.For the ordinary skill in the art, can understand that above-mentioned term is at this by concrete condition
Concrete meaning in utility model.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment one, embodiment two, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, one is used for
The micro-pressure change sensor of detection pulse, including lower house 6, upper shell 4, silica gel contact 3, piezoelectricity
Thin film 1 and holding wire 2, described piezoelectric membrane 1 includes that substrate, the two sides of described substrate are respectively positive pole
Face 11 and negative pole face 12, described positive pole-face 11 is covered with anelectrode coating 13, and described negative pole face 12 is covered with
Negative electrode coating 14, for the ease of being connected with holding wire 6, described anelectrode coating 13 is extended with positive pole
Extension area 15, described negative electrode coating 14 is extended with negative pole extension area 16, described positive pole-face 11 or negative
Pole-face 12 is provided with and its opposite polarity the output area 17 that is isolated from it insulation, described output area 17 and should
The positive pole extension area 15 of the same pole-face in output area 17 or negative pole extension area 16 constitute bipolar output area,
In embodiment one, two, illustrate as a example by output area 17 is arranged on positive pole-face 11, described defeated
The negative pole extension area 16 going out district 17 and negative pole face 12 is symmetrical arranged, and this output area 17 and described negative pole
It is provided with polarity via 18 between extension area 16, in polarity via 18, is covered with negative electrode coating, described
Silica gel contact 3 and piezoelectric membrane 2 are successively set between upper shell 4 and lower house 6, described upper shell 4
Making with lower house 6 respectively metal, described upper shell 4 is provided with contact and is touched by hole 41, described silica gel
3 include that base 31 and contact 32, the top of described contact 32 wear injection contact by hole 41, should
Human pulse is just arranged by contact 32, and described piezoelectric membrane 1 is close on base 31 bottom surface, described pressure
Conductive film 1 arranges the pole-face of output area 17 and arranges towards lower house 6, and namely piezoelectric membrane 1 is negative
Pole-face 13 is close to base 3 bottom surface, and what described lower house 6 was corresponding is provided with piezoelectric membrane displacement stroke work
Make chamber 61, deformation that this piezoelectric membrane displacement stroke working chamber 61 is piezoelectric membrane 1 or vibrations offer one
Fixed displacement space, when contact 32 senses the pressure change of pulse, piezoelectric membrane 1 produces accordingly
The shape that changes also produces the signal of telecommunication, and described holding wire 2 is FPC shielding line, is covered with outside described FPC shielding line
Electromagnetic shielding film, the negative pin of this FPC shielding line one end and positive pole pin respectively with output area 17 and
This output area 17 is arranged with positive pole extension area 15 one_to_one corresponding of pole-face, FPC shielding line and piezoelectric membrane
By the pressure crimping between upper shell 4 and lower house 6 between 1, namely by upper and lower casing by FPC
Shielding line is pressed on piezoelectric membrane 1, it is achieved the crimping of FPC shielding line and piezoelectric membrane connects, and this is even
The mode of connecing saves space, corresponding with the electrode lead-out part position of piezoelectric membrane 1 at lower house 6 end face
Being provided with escape groove 62, two pins that namely FPC shielding line is connected with piezoelectric membrane 1 are arranged on to be kept away
Allow in groove 62, by corresponding with the positive and negative electrode of piezoelectric membrane for two pins of FPC shielding line during installation,
And by upper shell 4 and lower casing after scribbling glue between two pins and piezoelectric membrane 1 of FPC shielding line
Body 6 compresses and connects, namely by the active force between upper shell 4 and lower house 6, by FPC shielding line
Overlaying on piezoelectric membrane 1, the effect of conducting resinl is that FPC shielding line correspondence piezoelectric membrane 1 is carried out position
That puts is fixing, will not produce the change on position, the other end of described FPC shielding line during crimping
Injection is worn by lower house 6；After assembling, by upper shell 4 two just to sidewall lower limb to dividing into
Some folding feet 42 are fixed further, and the signal of telecommunication produced due to piezoelectric membrane 1 is passed out by same pole-face,
Therefore this version saves spatial design, enhances the reliability of signal, and simplifies technique.
Assembling form between described upper shell 4, lower house 6, silica gel contact 3 and piezoelectric membrane 1 is two
Kind, in Fig. 3, shown described upper shell 4, silica gel contact 3, piezoelectric membrane 1 and lower house 6
By rivet 5 impermeable riveting together；In embodiment two, as shown in Figure 4, at described base 31
Bottom surface and piezoelectric membrane 1 corresponding be provided with groove 34, described piezoelectric membrane 1 and the groove of this groove 34
The end be close to and piezoelectric membrane 1 surrounding by conductive adhesive on this groove 34 bottom land, described silicon
Surrounding and the lower house 6 of glue contact 3 bottom surface are bonding by glue, and described upper shell 4, silica gel touch
3 with lower house 6 by together with rivet 5 impermeable riveting.
Embodiment three, as shown in Figure 1, Figure 2, Figure 6 shows, a kind of auscultation sensor, including upper shell 4,
Silica gel plate 7, piezoelectric membrane 1, lower house 6 and holding wire 2, piezoelectric membrane 1 version and embodiment
One-level embodiment two communicates, and does not do at this and repeats to introduce, and described upper shell 4 and lower house 6 are respectively gold
Belonging to housing, described silica gel plate 7 and piezoelectric membrane 1 are successively set between upper shell 4 and lower house 6, institute
State upper shell 4, silica gel plate 7, piezoelectric membrane 1 and lower house 6 to be riveted together by rivet 1, and
By upper shell 4 two just to the folding foot 42 that is respectively equipped with of sidewall lower limb fix further, described
The end face of upper shell 4 is provided with through hole 41, and in the present embodiment, through hole 41 is strip hole, described silica gel plate 7
With through hole 41 just to be provided with enlarged opening 71, described enlarged opening 71 and through hole 41 define transmission heart sound
Sound storehouse, and the heart sound sound wave captured can be played amplification, described piezoelectric membrane 1 arranges defeated
The pole-face going out district 17 is arranged towards lower house 6, described lower house 6 and corresponding the setting of piezoelectric membrane 1
Having mobile cavity 61, described holding wire 2 is FPC shielding line, is covered with electromagnetic shielding outside described FPC shielding line
Film, the negative pin of described holding wire 2 one end and positive pole pin extend with output area 47 and positive pole respectively
District 15 connects one to one, and described lower house 6 is provided with escape groove 62, and described holding wire 2 is thin with piezoelectricity
Two pins that film 1 is connected are positioned at this escape groove, and the height of described escape groove 62 draws less than two
The thickness of foot, when therefore realizing by assembling between upper shell 4 and lower house 6, by upper and lower casing
FPC shielding line and piezoelectric membrane 1 are crimped connection by pressure, for ensureing that FPC shielding line is in prison in solution preocess
Position, crimp front conducting resinl and two pins of FPC shielding line glued with piezoelectric membrane 1 respectively
Knot, and by boning at the bottom of two pins of FPC shielding line and escape groove 62 Cao of lower house 6, then lead to
Crossing rivet 5 to be riveted by upper and lower casing, the other end of FPC shielding line is drawn from lower house 6.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, this utility model can also in such as ultrasound wave, sonar, to put (receipts) sound device etc. relevant with vibrations
In sensor, the most all within spirit of the present utility model and principle, any amendment of being made, equivalent
Replacement, improvement etc., within should be included in protection domain of the present utility model.
Claims (6)
1. a piezoelectric membrane electrode lead-out structure, it is characterized in that: include piezoelectric membrane (1) and holding wire (2), one monopole plane of described piezoelectric membrane (1) is provided with bipolarity bonding pad, and described bipolarity bonding pad connects holding wire (2).
A kind of piezoelectric membrane electrode lead-out structure the most according to claim 1, it is characterized in that: described piezoelectric membrane (1) includes substrate, the two sides of described substrate is respectively positive pole-face (11) and negative pole face (12), described positive pole-face (11) is covered with anelectrode coating (13), described negative pole face (12) is covered with negative electrode coating (14), described bipolarity bonding pad is described positive pole-face (11) or negative pole face (12) are additionally provided with the output area (17) with its opposite polarity isolated insulation, the electrode coating conducting of described output area (17) and another pole-face.
A kind of piezoelectric membrane electrode lead-out structure the most according to claim 1 and 2, it is characterised in that: described holding wire (2) is FPC holding wire.
A kind of piezoelectric membrane electrode lead-out structure the most according to claim 3, it is characterised in that: bipolarity bonding pad and the FPC holding wire of described piezoelectric membrane (1) connect by applying the housing of the device of this piezoelectric membrane (1) to compress.
A kind of piezoelectric membrane electrode lead-out structure the most according to claim 4, it is characterised in that: the bipolarity bonding pad of described FPC holding wire and piezoelectric membrane (1) is pasted fixing also by conducting resinl.
A kind of piezoelectric membrane electrode lead-out structure the most according to claim 3, it is characterised in that: bipolarity bonding pad and the FPC holding wire of described piezoelectric membrane (1) are connected by conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139863.3U CN205488235U (en) | 2015-12-31 | 2015-12-31 | Structure is drawn forth to piezoelectric membrane electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139863.3U CN205488235U (en) | 2015-12-31 | 2015-12-31 | Structure is drawn forth to piezoelectric membrane electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205488235U true CN205488235U (en) | 2016-08-17 |
Family
ID=56663158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521139863.3U Active CN205488235U (en) | 2015-12-31 | 2015-12-31 | Structure is drawn forth to piezoelectric membrane electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205488235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109222919A (en) * | 2017-07-10 | 2019-01-18 | 中国科学院微电子研究所 | Pulse wave sensor, sensor array and the pulse wave measuring apparatus using it |
| CN114390417A (en) * | 2021-10-12 | 2022-04-22 | 苏州清听声学科技有限公司 | Screen directional sounding device and preparation method thereof |
-
2015
- 2015-12-31 CN CN201521139863.3U patent/CN205488235U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109222919A (en) * | 2017-07-10 | 2019-01-18 | 中国科学院微电子研究所 | Pulse wave sensor, sensor array and the pulse wave measuring apparatus using it |
| CN114390417A (en) * | 2021-10-12 | 2022-04-22 | 苏州清听声学科技有限公司 | Screen directional sounding device and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |