CN108367314A - Acoustic transducer assembly with concentric contact pin and the method for manufacturing the acoustic transducer assembly with concentric contact pin - Google Patents
Acoustic transducer assembly with concentric contact pin and the method for manufacturing the acoustic transducer assembly with concentric contact pin Download PDFInfo
- Publication number
- CN108367314A CN108367314A CN201680072499.4A CN201680072499A CN108367314A CN 108367314 A CN108367314 A CN 108367314A CN 201680072499 A CN201680072499 A CN 201680072499A CN 108367314 A CN108367314 A CN 108367314A
- Authority
- CN
- China
- Prior art keywords
- openings
- pass
- acoustic transducer
- contact pin
- confining bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 239000003365 glass fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
Abstract
The present invention proposes a kind of acoustic transducer assembly (100), including：Orifice plate load-bearing part (101) with multiple pass through openings (111)；Multiple piezoelectric elements (104), wherein, there are one first electrode (105) and a second electrodes (106) for each piezoelectric element (104) tool, the first electrode (105) and the second electrode (106) are opposite, and piezoelectric element (104) is arranged in pass through openings (111) inside；With confining bed (103), wherein, the confining bed (103) is arranged in above the orifice plate load-bearing part (101) and the piezoelectric element (104), wherein, the second electrode (106) and the confining bed (103) of the piezoelectric element (104) are conductively connected, it is characterized in that, the orifice plate load-bearing part (101) has at least two concentric contact pin (102) between two pass through openings (111) in the horizontal, the contact pin has common center with a pass through openings in described two pass through openings (111), and the confining bed (103) respectively pass through openings (111) corresponding with being directly adjacent to the contact pin (102) have the first join domain (108).
Description
Technical field
It is such for manufacturing that the present invention relates to a kind of acoustic transducer assemblies according to claim 1 preamble and one kind
The method of acoustic transducer assembly.
Background technology
39 20 872 A1 of file DE disclose a kind of method for manufacturing ultrasonic laminar energy converter, in the hyperacoustic zone
In formula energy converter, the piezoelectric ceramics and thermoplastic material of laminar energy converter are connected with each other by heat bonding.In order to generate pair
The necessary heat for bonding generates loss heat by applying electric signal in piezoelectric ceramics.
It is a kind of described in 10 2,004 047 814 A1 of document DE to focus micro-machined ultrasound transducer array, it should
Ultrasound transducer array be used as it is for focusing, can Clinical practice ultrasonic detector.Make the transducing constructed laterally side by side
The mutual electrical connection in device unit area formula ground, to realize focusing that ultrasonic transduction device makes every effort to reach.
Herein disadvantageously, each ultrasonic transducer is exposed to the external action of mechanical type and electric type.
Invention content
Acoustic transducer assembly includes the orifice plate load-bearing part with multiple pass through openings, multiple piezoelectric elements and a closing
Layer.Here, there are one first electrode and a second electrodes for each piezoelectric element tool.First electrode is opposite with second electrode.
Piezoelectric element is respectively disposed with inside pass through openings.Confining bed is arranged in above orifice plate load-bearing part and piezoelectric element, wherein pressure
The second electrode of electric device and confining bed are conductively connected.According to the present invention, orifice plate load-bearing part is opened in two perforations in the horizontal
There are at least two concentric contact pin, the contact pin to have altogether with a pass through openings in described two pass through openings between mouthful
Same center.Confining bed respectively pass through openings corresponding with being directly adjacent to contact pin have the first join domain.
Advantage is to provide the decoupling of each flexible transducer element in a simple manner herein.
In expansion scheme, confining bed has the second join domain, the contact pin and then directly adjacent with low splicing respectively
It is connected to the contact pin of pass through openings.
Herein advantageously, the decoupling between each flexible transducer element is more effectively realized.
In another configuration, the first join domain includes weld seam or adhesive linkage.
In expansion scheme, the second join domain includes weld seam or adhesive linkage.
In another configuration, confining bed single-piece ground configuration.
Herein advantageously, the complex of flexible transducer element is fully protected and from external action.
In expansion scheme, confining bed and orifice plate load-bearing part have third join domain.Third join domain makes confining bed
Fringe region connected with the fringe region of orifice plate load-bearing part.
Herein advantageously, third join domain as entire acoustic transducer assembly for such as moisture and liquid
Sealing works.
In another configuration, third articulamentum includes weld seam.
Method according to the present invention for manufacturing acoustic transducer assembly includes making second electrode and the closing of piezoelectric element
Layer connection, the acoustic transducer assembly include with multiple pass through openings and multiple concentric contact pin, multiple piezoelectric elements and closing
The orifice plate load-bearing part of layer.In addition, the method includes being made the first electrode contacting of piezoelectric element by means of wire rod bonding,
In, first electrode is arranged oppositely with second electrode, also, the method includes so that confining bed and orifice plate is held by means of weld seam
Holder connects, wherein weld seam is arranged in the contact pin for being directly adjacent to pass through openings.In addition, the method includes to damp material
Material is partially filled with pass through openings.
Advantage is herein, can cost optimization and manufacture acoustic transducer assembly in a simple manner.
By next obtaining other advantages to the description of embodiment or by dependent claims.
Description of the drawings
The present invention is illustrated in detail below according to preferred embodiment and attached drawing.Attached drawing is shown：
First configuration of Fig. 1 a acoustic transducer assemblies according to the present invention,
The vertical view of first configuration of Fig. 1 b acoustic transducer assemblies according to the present invention,
Second configuration of Fig. 2 acoustic transducer assemblies according to the present invention,
The method that Fig. 3 is used to manufacture acoustic transducer assembly according to the present invention.
Specific implementation mode
Fig. 1 shows cut-away view of the first configuration of acoustic transducer assembly 100 in xz planes.Acoustic transducer assembly 100 shows
Three acoustic transducer element arranged spaced apart flexible transducer elements 115 in other words in parallel to each other are shown to example property.Here,
Flexible transducer element 115 includes piezoelectric element 104, the diaphragm 114 by means of the formation of confining bed 103,101 and of orifice plate load-bearing part
Damping material.Orifice plate load-bearing part 101 include multiple pass through openings 111 in other words hole and with opposite arrangement upside and under
Side.Contact pin 102 is disposed on upside, the contact pin is disposed concentrically upon around pass through openings 111.Here, contact pin 102 is directly adjacent
It is connected to pass through openings 111.Piezoelectric element 104 is equally disposed concentrically upon relative to pass through openings 111, wherein each pass through openings
111 receive a piezoelectric element 104 respectively, which is introduced into pass through openings 111 from upside or flushes ground with upside
It terminates.Piezoelectric element 104 has the diameter less than pass through openings 111.In other words, piezoelectric element 104 be located at pass through openings 111 or
Person says inside hole.There are one first electrode 105 and a second electrodes 106 for each tool of piezoelectric element 104.First electrode 105 is borrowed
Help wire rod interconnecting piece and signal conductor or signalling contact are for example connect and act as with amplifier circuit.Second electrode 106 is borrowed
Help adhesive linkage 107 and confining bed 103 is conductively connected.Confining bed 103 and electrical ground, such as amplifier circuit grounding connection.
This means that second electrode 105 is ground connection, it is achieved in EMV shieldings.
Alternatively, piezoelectric element 104 can conductively be connected by two wire rod interconnecting pieces and electrical ground and amplifier circuit
It connects.For this purpose, second electrode 106 is surround on the edge of piezoelectric element 104 connects (umkontaktieren) so that in the first electricity
The electrode zone being separated from each other there are two on the side of pole 105, the electrode zone can contactings apart from each other.At this
In piezoelectric element 104 can by cannot conductive adhesive linkage connect with confining bed 103.
Each flexible transducer element 115 has there are one the first join domain 108, which sets or ensure
The edge of flexible transducer element 115 or diaphragm 114 clamps.Here, concept " the first join domain 108 " be interpreted as wherein into
The region of mechanical connection between row confining bed 103 and the contact pin 102 of orifice plate load-bearing part 101, the contact pin are directly adjacent to penetrate through
Opening 111.First join domain 108 is disposed concentrically upon around pass through openings 111 and with straight more than pass through openings 111
Diameter.
It is disposed with other contact pin 117, i.e., at least one at interval in the horizontal with the horizontal spacing relative to contact pin 102
A other contact pin 117.Herein, contact pin 102 and the other contact pin 117 are spaced apart and are held by orifice plate in the horizontal
Notch 116 in the upside of holder 101 is separated from each other.Notch 116 has 0.1mm- relative to the weld seam of the first join domain 108
The spacing of 1mm.Horizontal spacing between contact pin 102 and the other contact pin 117 is 0.1-2mm.The depth of notch 116 has
At least 0.1mm.The vibratile region in part of confining bed 103 is generated by notch 116 so that diaphragm 114 can absorb and divide
Dissipate vibrational energy.
Second join domain 109 is disposed concentrically upon around the first join domain 108.Here, the second join domain 109 is opposite
There is horizontal spacing in the first join domain 108.These second join domains 109 are arranged in the other contact pin 117 simultaneously
And equally including weld seam.Optionally, the join domain that the second join domain 109 may exist other arranged concentric is surrounded, this
A little join domains equally have weld seam.Here, the quantity of concentric join domain corresponds to connecing with one heart around pass through openings 111
Piece 102 and 117.In other words, multiple contact pin 117 and multiple have abreast been alternately arranged in the horizontal around pass through openings 111
Notch 116, wherein circular contact pin 102 is directly close to pass through openings 111 and arranges respectively.This contributes to two sonic transducer members
Improved decoupling between part.
Optionally, notch 116 can for example fill the damping material with containing silicone resin.
Third join domain is equipped in the fringe region of confining bed 103 and in the fringe region of orifice plate load-bearing part 101
110.Herein, the region that it is 0.1mm-1mm relative to the horizontal spacing of seamed edge outside confining bed that concept " fringe region ", which is interpreted as,.
Thickness of the piezoelectric element 104 with 100 μm -750 μm, 150 μm -500 μm.Orifice plate load-bearing part 101 has 0.5mm-
The thickness of 15mm, preferably 1mm-10mm.
Confining bed 103 has 50 μm -750 μm of thickness.Confining bed 103 can be painted and protect acoustic transducer assembly
100 from moisture, liquid and mechanism influence.It is alternatively possible to be disposed with plastic film on confining bed 103.Plastics
Film is preferably adhered to by epoxy resin adhesive on confining bed 103.It is used for here, epoxy resin adhesive additionally plays
Realize the effect of the tolerance compensating on especially flat surface.For this purpose, epoxy resin adhesive can be scraped up.Plastic film is for example
With polyimides or by metal and plastics or the composite material being made of carbon fibre fabric and resin.
In embodiment, confining bed 103 includes metal, such as stainless steel, steel or aluminium alloy.It means that confining bed 103
It is entirely capable of conduction.
In another embodiment, confining bed 103 has plastics, such as PES, PVDF, glass fiber compound material or carbon fiber
Tie up composite material, wherein the side of confining bed 103 being connect with orifice plate load-bearing part 101 has metal layer.
The preferred containing silicone resin of damping material.
The basic configuration of piezoelectric element 104, flexible transducer element 115 and pass through openings 111 is arbitrary.Preferably,
They have well-regulated shape, such as rectangular, rectangle, quadrangle, round or ellipse.In an acoustic transducer assembly 100,
The basic configuration of piezoelectric element 104, flexible transducer element 115 and pass through openings 111 can be similar or different.
Acoustic transducer assembly 100 can be with the acoustic transducer element that quantity is 2-250, preferably 5-50.
Fig. 1 b show the vertical view of the first embodiment of acoustic transducer assembly 100 according to the present invention.Illustratively show
Go out three flexible transducer elements 115, the flexible transducer element is arranged in parallel to each other or in a row.In a top view
Show that the confining bed 103 of rectangle, the confining bed cover three piezoelectric elements 104.In addition, showing to set each bending transducing
The first join domain 108 that the edge of device clamps, 109 and of the second join domain for playing decoupling function between flexible transducer
Third join domain 110 configuration and act as the sealing of acoustic transducer assembly to the third join domain such as rectangle.
Fig. 2 shows cut-away view of the second configuration of acoustic transducer assembly 200 in xz planes.Fig. 2 with shown in Fig. 1
The identical feature of feature has the rear bit digital identical with Fig. 1 of reference numeral.In fig. 2, the first join domain 208, second
Join domain 209 and third join domain 210 have the bonding connection portion instead of weld seam.
Fig. 3 shows that the method for manufacturing acoustic transducer assembly, the acoustic transducer assembly have orifice plate load-bearing part, the hole
Plate load-bearing part is with multiple pass through openings and multiple concentric contact pin, a multiple piezoelectric elements and confining bed.The method 300 with
Step 310 starts, and the second electrode of piezoelectric element is made to be connect with confining bed in this step.In subsequent step 320, by
Make first electrode electrical connection or the contacting of piezoelectric element in wire rod bonding.Here, first electrode is opposite with second electrode.
In subsequent step 330, makes confining bed by means of the first join domain, for example by weld seam and be directly adjacent to pass through openings
Contact pin connection.In subsequent step 340, pass through openings are filled at least partly with damping material, especially from away from closing
The back side of the side of layer arrangement, i.e. orifice plate load-bearing part is filled.
Acoustic transducer assembly 100 and 200 using motor vehicle, movement or static machine such as robot, nobody drives
It sails in logistics system in transportation system, warehouse, dust catcher, grass trimmer.In addition, acoustic transducer assembly 100 and 200 can use
In electric bicycle, electric wheelchair, or using in the additional device for supporting body disability personnel.
Claims (8)
1. acoustic transducer assembly (100), including
Orifice plate load-bearing part (101) with multiple pass through openings (111),
Multiple piezoelectric elements (104), wherein there are one first electrode (105) and one second for each piezoelectric element (104) tool
Electrode (106), the first electrode (105) and the second electrode (106) are opposite, and piezoelectric element (104) difference cloth
It sets in pass through openings (111) inside, and
Confining bed (103), wherein the confining bed (103) is arranged in the orifice plate load-bearing part (101) and the piezoelectric element
(104) top, wherein the second electrode (106) of the piezoelectric element (104) conductively connects with the confining bed (103)
It connects,
It is characterized in that,
The orifice plate load-bearing part (101) has at least two concentric contact pin between two pass through openings (111) in the horizontal
(102), the contact pin has common center with a pass through openings in described two pass through openings (111), and described
Confining bed (103) respectively pass through openings (111) corresponding with being directly adjacent to the contact pin (102) have the first join domain
(108)。
2. acoustic transducer assembly (100) according to claim 1, which is characterized in that the confining bed (103) respectively with
There is low splicing (117) the second join domain (109), the contact pin to be and then directly adjacent to the institute of the pass through openings (111)
State contact pin (102).
3. acoustic transducer assembly (100) according to any one of the preceding claims, which is characterized in that first connection
Region (108) includes weld seam or adhesive linkage.
4. acoustic transducer assembly (100) according to claim 2 or 3, which is characterized in that second join domain
(109) include weld seam or adhesive linkage.
5. acoustic transducer assembly (100) according to any one of the preceding claims, which is characterized in that the confining bed
(103) it constructs to single-piece.
6. acoustic transducer assembly (100) according to any one of the preceding claims, which is characterized in that the confining bed
(103) and there is the orifice plate load-bearing part (101) third join domain (110), the third join domain to make the confining bed
(103) fringe region and the fringe region of the orifice plate load-bearing part (101) are mechanically connected.
7. acoustic transducer assembly (100) according to claim 6, which is characterized in that third join domain (110) packet
Include weld seam.
8. for manufacturing the method (300) of acoustic transducer assembly, the acoustic transducer assembly include with multiple pass through openings and
The orifice plate load-bearing parts of multiple concentric contact pin, multiple piezoelectric elements and a confining bed, the method have steps of：
The second electrode of the piezoelectric element is set to connect (310) with the confining bed,
Make the first electrode contacting (320) of the piezoelectric element by means of wire rod bonding, wherein the first electrode with
The second electrode arranges oppositely,
The contact pin for being directly adjacent to the pass through openings of the confining bed and the orifice plate load-bearing part is set to connect by means of weld seam
It connects (330), and
It is partially filled with (340) described pass through openings with damping material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015224772.4A DE102015224772A1 (en) | 2015-12-10 | 2015-12-10 | Sound transducer arrangement with concentric webs and method for producing a sound transducer arrangement with concentric webs |
| DE102015224772.4 | 2015-12-10 | ||
| PCT/EP2016/074679 WO2017097473A1 (en) | 2015-12-10 | 2016-10-14 | Acoustic transducer arrangement having concentric connecting elements and method for producing an acoustic transducer arrangement having concentric connecting elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108367314A true CN108367314A (en) | 2018-08-03 |
Family
ID=57136889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680072499.4A Pending CN108367314A (en) | 2015-12-10 | 2016-10-14 | Acoustic transducer assembly with concentric contact pin and the method for manufacturing the acoustic transducer assembly with concentric contact pin |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3386647A1 (en) |
| CN (1) | CN108367314A (en) |
| DE (1) | DE102015224772A1 (en) |
| WO (1) | WO2017097473A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220538A (en) * | 1991-08-08 | 1993-06-15 | Raytheon Company | Electro-acoustic transducer insulation structure |
| CN1215300A (en) * | 1997-08-05 | 1999-04-28 | 株式会社村田制作所 | Piezo-electric electro-acoustic transducer |
| CN1468663A (en) * | 2002-07-17 | 2004-01-21 | 陕西师范大学 | High-stability supersonic transducer and its making process |
| US20080184802A1 (en) * | 2007-02-05 | 2008-08-07 | Denso Corporation | Mount structure for sensor device |
| EP2937857A2 (en) * | 2014-04-24 | 2015-10-28 | Robert Bosch Gmbh | Membrane for an ultrasonic transducer and ultrasonic transducer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754440A (en) * | 1985-12-27 | 1988-06-28 | Aisin Seiki Kabushikikaisha | Ultrasonic transducer |
| DE3920872A1 (en) | 1989-06-26 | 1991-01-03 | Siemens Ag | Hot bonding thermoplastic material to piezoelectric material - in transducer mfr., by surface fusing thermoplastic material |
| US20050075572A1 (en) | 2003-10-01 | 2005-04-07 | Mills David M. | Focusing micromachined ultrasonic transducer arrays and related methods of manufacture |
| DE102011079646A1 (en) * | 2011-07-22 | 2013-02-07 | Robert Bosch Gmbh | Ultrasonic sensor device for detecting and / or transmitting ultrasound |
-
2015
- 2015-12-10 DE DE102015224772.4A patent/DE102015224772A1/en not_active Withdrawn
-
2016
- 2016-10-14 EP EP16781791.5A patent/EP3386647A1/en not_active Withdrawn
- 2016-10-14 CN CN201680072499.4A patent/CN108367314A/en active Pending
- 2016-10-14 WO PCT/EP2016/074679 patent/WO2017097473A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220538A (en) * | 1991-08-08 | 1993-06-15 | Raytheon Company | Electro-acoustic transducer insulation structure |
| CN1215300A (en) * | 1997-08-05 | 1999-04-28 | 株式会社村田制作所 | Piezo-electric electro-acoustic transducer |
| CN1468663A (en) * | 2002-07-17 | 2004-01-21 | 陕西师范大学 | High-stability supersonic transducer and its making process |
| US20080184802A1 (en) * | 2007-02-05 | 2008-08-07 | Denso Corporation | Mount structure for sensor device |
| EP2937857A2 (en) * | 2014-04-24 | 2015-10-28 | Robert Bosch Gmbh | Membrane for an ultrasonic transducer and ultrasonic transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015224772A1 (en) | 2017-06-14 |
| EP3386647A1 (en) | 2018-10-17 |
| WO2017097473A1 (en) | 2017-06-15 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180803 |