CN203984666U - A kind of exciting acoustical generator for Medical Devices - Google Patents
A kind of exciting acoustical generator for Medical Devices Download PDFInfo
- Publication number
- CN203984666U CN203984666U CN201420316336.4U CN201420316336U CN203984666U CN 203984666 U CN203984666 U CN 203984666U CN 201420316336 U CN201420316336 U CN 201420316336U CN 203984666 U CN203984666 U CN 203984666U
- Authority
- CN
- China
- Prior art keywords
- voice coil
- exciting
- oscillating plate
- exciting unit
- medical devices
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 3
- BPPVUXSMLBXYGG-UHFFFAOYSA-N 4-[3-(4,5-dihydro-1,2-oxazol-3-yl)-2-methyl-4-methylsulfonylbenzoyl]-2-methyl-1h-pyrazol-3-one Chemical compound CC1=C(C(=O)C=2C(N(C)NC=2)=O)C=CC(S(C)(=O)=O)=C1C1=NOCC1 BPPVUXSMLBXYGG-UHFFFAOYSA-N 0.000 description 2
- 241001091551 Clio Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a kind of exciting unit for Medical Devices, comprise that voice coil loudspeaker voice coil, magnetic conductive board, bracing frame, magnetism-guiding hood, oscillating plate, supporting outer and elasticity props up sheet, the upper end of supporting outer is fixedly connected with oscillating plate, voice coil loudspeaker voice coil top is fixed on the lower surface of described oscillating plate, magnetism-guiding hood ringwise and surround described voice coil loudspeaker voice coil, bracing frame is connected with the lower surface of magnetism-guiding hood, one magnet steel is set on magnetism-guiding hood, the upper surface of magnet steel is provided with a magnetic conductive board, magnetic conductive board is positioned at the centre of voice coil loudspeaker voice coil, and the bottom of bracing frame is propped up sheet with supporting outer by elasticity and is fixedly connected with.The exciting acoustical generator of the exciting unit based on above-mentioned, comprises exciting unit and an airtight box body, and described exciting unit is placed in box body, and the oscillating plate of exciting unit is connected with the inner surface of box body.The exciting acoustical generator of the utility model design is when accomplishing that frequency is 200-20K, and its external diameter can be accomplished in 20mm.
Description
Technical field
The utility model relates to acoustical generator field, particularly relates to a kind of exciting acoustical generator for Medical Devices.
Background technology
Conventionally, electroacoustic transducer is acoustics output device, for example loud speaker, receiver, buzzer and vibrator, it will convert mechanical signal to from the signal of telecommunication of signal source input, with output sound or generation vibration force, earphone and speaker system are to use the representative example of this class acoustics output device.
In prior art, the acoustical generator of routine, as shown in Figure 1, all adopts electrical conductor to make voice coil loudspeaker voice coil, and while inputting a tone currents signal in voice coil loudspeaker voice coil, voice coil loudspeaker voice coil is equivalent to a current－carrying conductor.If it is placed in fixed magnetic field, according to current－carrying conductor, in magnetic field, can be subject to the principle of the effect campaign of power, voice coil loudspeaker voice coil can be subject to a size and be directly proportional to tone currents, the power that direction changes with tone currents.Like this, voice coil loudspeaker voice coil will produce vibration under magnetic fields, and drives vibrating diaphragm vibration, and the air before and after vibrating diaphragm is vibration thereupon also, so just converts the electrical signal to sound wave to surrounding radiation, sounds.Such acoustical generator, if bore is fixed in 20mm, resonance frequency (F
0) conventionally more than 400Hz.
When acoustical generator is applied in Medical Devices, need specific frequency band to send specific sound and distinguish all kinds of demands in ward.The good exciting acoustical generator for Medical Devices seems particularly important to design a kind of low-frequency effect.Existing loud speaker is and uses vibrating diaphragm to produce vibration and the active loud speaker of sounding, and low-frequency effect is obviously not good, even if accomplish that low-frequency effect is good, the shell of self is larger, and application is inconvenient.
Utility model content
The utility model, in order to overcome the deficiency of above-mentioned technical problem, provides a kind of exciting acoustical generator for Medical Devices, and it has microminiature shell mechanism, and save space, has realized the good passive loud speaker of low-frequency vibration frequency effect.
The technical scheme solving the problems of the technologies described above is as follows:
A kind of exciting unit for Medical Devices, comprise voice coil loudspeaker voice coil, magnetic conductive board, bracing frame, magnetism-guiding hood, oscillating plate, supporting outer and elasticity are propped up sheet, the upper end of described supporting outer is fixedly connected with oscillating plate, described voice coil loudspeaker voice coil top is fixed on the lower surface of described oscillating plate, described magnetism-guiding hood ringwise and surround described voice coil loudspeaker voice coil, described bracing frame is connected with the lower surface of magnetism-guiding hood, one magnet steel is set on described magnetism-guiding hood, the upper surface of described magnet steel is provided with a magnetic conductive board, described magnetic conductive board is positioned at the centre of voice coil loudspeaker voice coil, the bottom of described bracing frame is propped up sheet with supporting outer by elasticity and is fixedly connected with.
Top and the oscillating plate of described supporting outer are bonding.
Described oscillating plate is light-weight metal thin plate.
Described oscillating plate is aluminium sheet.
Described elasticity sheet-supporting structure is undaform.Adopt the design of undaform to have the following advantages: 1, can play a supporting role to shell; 2, make the stability of supporting outer higher; 3, can be according to the vibration frequency generation elastic deformation of shell.
It is bonding that the bottom of described bracing frame and supporting outer prop up sheet by elasticity.
For an exciting acoustical generator for Medical Devices, comprise above-mentioned exciting unit and an airtight box body, described exciting unit is placed in box body, and the oscillating plate of exciting unit is connected with the inner surface of box body.
The oscillating plate upper surface of described exciting unit and the inner surface of box body are bonding, also can connector be set in supporting outer outer ring and be connected with box body, and the upper surface of oscillating plate and the inner surface of box body are directly fitted.
The exciting phonation unit of this structure, exposed aerial time when it, substantially can not sound, and be placed in an airtight box body, get involved a carrier, realize passive sounding, when electric current is by voice coil loudspeaker voice coil time, the vibration of drive aluminium sheet, aluminium sheet can drive shell vibration, and the vibration of aluminium sheet and shell will be sent by means of carrier the caution sound of each signal.
The exciting acoustical generator of the utility model design is when accomplishing that frequency is 200-20K, and its external diameter can be accomplished in 20mm.In addition, as expansion, the carrier that the utility model relates to, comprises the sheet material of the rigidity such as airtight box, flat board, desktop.The area of carrier is larger, and the effect of sending low frequency is better.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the loud speaker of prior art;
Fig. 2 is the structural representation of exciting of the present utility model unit;
Fig. 3 is the vertical view of exciting of the present utility model unit;
Fig. 4 is the structural representation of exciting acoustical generator of the present utility model;
Fig. 5 is the loud speaker of exciting of the present utility model unit and prior art, under the condition of 1W/0.5M, and the frequency response curve that CLIO electroacoustic analysis and test device tests out at anechoic chamber;
Fig. 6 is that the loud speaker of exciting acoustical generator of the present utility model and prior art is placed in airtight box body, under the condition of 1W/0.1M, the frequency response curve that tests out at anechoic chamber of CLIO electroacoustic analysis and test device;
Fig. 7 is the frequency spectrum of the sound that in hospital ward, CarenetInop low frequency exciting source sends;
Fig. 8 is the frequency spectrum of the sound that in hospital ward, CarenetRed low frequency exciting source sends;
Fig. 9 is the frequency spectrum of the sound that in hospital ward, CarenetYellow low frequency exciting source sends;
In Fig. 1: 11 is magnetic conduction lower plate, 12 is magnet, and 13 is magnetic conduction upper plate, and 14 is basin frame, and 15 is ring, and 16 is vibrating diaphragm, and 17 is voice coil loudspeaker voice coil, and 18 is conducting magnetic column, and 19 is dust cover, and 20 is air gap, and 21 is centring disk, and 22 is flanging.
In Fig. 2: 1 is voice coil loudspeaker voice coil, 2 is magnetic conductive board, and 3 is oscillating plate, and 4 is supporting outer, and 5 is bracing frame, and 6 is magnetism-guiding hood, and 7 is magnet steel, and 8 prop up sheet for elasticity, and 9 is connector.
In Fig. 4: 3 is oscillating plate, and 10 is box body.
In Fig. 5: A curve is the frequency response curve of the loud speaker of conventional structure in prior art, B curve is the frequency response curve of exciting phonation unit of the present utility model.
In Fig. 6: C curve is the loud speaker of conventional structure in the prior art frequency response curve in airtight box body, and D curve is the frequency response curve of exciting acoustical generator of the present utility model in airtight box body.
Embodiment
As Fig. 2, a kind of exciting unit for Medical Devices shown in Fig. 3, comprise voice coil loudspeaker voice coil 1, magnetic conductive board 2, bracing frame 5, magnetism-guiding hood 6, oscillating plate 3, supporting outer 4 and elasticity are propped up sheet 8, the upper end of described supporting outer 4 is fixedly connected with oscillating plate 3, described voice coil loudspeaker voice coil 1 top is fixed on the lower surface of described oscillating plate 3, described magnetism-guiding hood 6 ringwise and surround described voice coil loudspeaker voice coil 1, described bracing frame 5 is connected with the lower surface of magnetism-guiding hood 6, one magnet steel 7 is set on described magnetism-guiding hood 6, the upper surface of described magnet steel 7 is provided with a magnetic conductive board 2, described magnetic conductive board 2 is positioned at the centre of voice coil loudspeaker voice coil 1, the bottom of described bracing frame 5 is propped up sheet 8 with supporting outer 4 by elasticity and is fixedly connected with.Top and the oscillating plate 3 of described supporting outer 4 are bonding, and described oscillating plate 3 is light-weight metal thin plate, preferred aluminium sheet, and described elasticity is propped up sheet 8 structures and is undaform.It is bonding that the bottom of described bracing frame 5 and supporting outer 4 prop up sheet 8 by elasticity.The outer surface of described supporting outer 4 also arranges connector 9.
A kind of exciting acoustical generator for Medical Devices as shown in Figure 4, comprise exciting unit and an airtight box body 10, described exciting unit is placed in box body 10, supporting outer 4 outer surfaces of exciting unit are provided with connector 9, this connector 9 is connected with box body 10, and the upper surface of oscillating plate 3 and the inner surface of box body 10 are directly fitted
By Fig. 5 and Fig. 6, can obviously be found out: exciting of the present utility model unit is compared with the frequency response curve of the loud speaker of conventional structure of the prior art, sound hardly in exciting of the present utility model unit; And the frequency response curve of measuring in exciting of the present utility model unit is placed in to airtight box body with the loud speaker of conventional structure of the prior art is compared, especially obvious within the scope of 180-5K, for example, when input signal is 450Hz, acoustic pressure of the present utility model is at 79dB, and the acoustic pressure of the loud speaker of prior art conventional structure is at 62dB; When input signal is 500Hz, acoustic pressure of the present utility model is at 84dB, and the acoustic pressure of the loud speaker of prior art conventional structure is at 79dB; When input signal is 600Hz, acoustic pressure of the present utility model is at 88dB, and the acoustic pressure of the loud speaker of prior art conventional structure is at 81dB; When input signal is 1KHz, acoustic pressure of the present utility model is at 88dB, and the acoustic pressure of the loud speaker of prior art conventional structure is at 78dB; When input signal is 4.5KHz, acoustic pressure of the present utility model is at 77dB, and the acoustic pressure of the loud speaker of prior art conventional structure is at 65dB.Hence one can see that, and exciting acoustical generator of the present utility model is placed in an airtight box body low-frequency effect better.Fig. 7,8,9 lists three kinds and is applied in the utility model the spectrogram that caution device in hospital ward sends the caution sound of each signal, and wherein, Fig. 7 is the frequency spectrum of the sound that in hospital ward, CarenetInop low frequency exciting source sends; Fig. 8 is the frequency spectrum of the sound that in hospital ward, CarenetRed low frequency exciting source sends; Fig. 9 is the frequency spectrum of the sound that in hospital ward, CarenetYellow low frequency exciting source sends; Related data is in Table 1:
Table 1
As shown in Figure 7, the caution sound that in hospital ward, CarenetInop low frequency exciting source sends, its Hz-KHz is at 0-2500Hz, low-frequency sound pressure maximum is-24dB, now corresponding frequency is 500Hz, with reference to figure 5, when frequency is 500Hz, existing loud speaker acoustic pressure is 78dB, and the utility model acoustic pressure is 85dB;
As shown in Figure 8, the caution sound that in hospital ward, CarenetRed low frequency exciting source sends, its Hz-KHz is at 600-1300Hz, low-frequency sound pressure maximum is-6dB, now corresponding frequency is 900Hz, with reference to figure 5, when frequency is 900Hz, existing loud speaker acoustic pressure is 74dB, and the utility model acoustic pressure is 88dB;
As shown in Figure 9, the caution sound that in hospital ward, CarenetYellow low frequency exciting source sends, its Hz-KHz is at 0-3800Hz, low-frequency sound pressure maximum is-12dB, now corresponding frequency is 450Hz, with reference to figure 5, when frequency is 450Hz, existing loud speaker acoustic pressure is 62dB, and the utility model acoustic pressure is 79dB.
Claims (7)
1. the exciting unit for Medical Devices, it is characterized in that, comprise voice coil loudspeaker voice coil, magnetic conductive board, bracing frame, magnetism-guiding hood, oscillating plate, supporting outer and elasticity are propped up sheet, the upper end of described supporting outer is fixedly connected with oscillating plate, described voice coil loudspeaker voice coil top is fixed on the lower surface of described oscillating plate, described magnetism-guiding hood ringwise and surround described voice coil loudspeaker voice coil, described bracing frame is connected with the lower surface of magnetism-guiding hood, one magnet steel is set on described magnetism-guiding hood, the upper surface of described magnet steel is provided with a magnetic conductive board, described magnetic conductive board is positioned at the centre of voice coil loudspeaker voice coil, the bottom of described bracing frame is propped up sheet with supporting outer by elasticity and is fixedly connected with.
2. a kind of exciting unit for Medical Devices according to claim 1, is characterized in that, top and the oscillating plate of described supporting outer are bonding.
3. a kind of exciting unit for Medical Devices according to claim 1, is characterized in that, described oscillating plate is light-weight metal thin plate.
4. a kind of exciting unit for Medical Devices according to claim 3, is characterized in that, described oscillating plate is aluminium sheet.
5. a kind of exciting unit for Medical Devices according to claim 1, is characterized in that, described elasticity sheet-supporting structure is undaform.
6. a kind of exciting unit for Medical Devices according to claim 1, is characterized in that, it is bonding that the bottom of described bracing frame and supporting outer prop up sheet by elasticity.
7. the exciting acoustical generator based on exciting claimed in claim 1 unit, is characterized in that, comprises exciting unit and an airtight box body, and described exciting unit is placed in box body, and the oscillating plate of exciting unit is connected with the inner surface of box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316336.4U CN203984666U (en) | 2014-06-13 | 2014-06-13 | A kind of exciting acoustical generator for Medical Devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316336.4U CN203984666U (en) | 2014-06-13 | 2014-06-13 | A kind of exciting acoustical generator for Medical Devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984666U true CN203984666U (en) | 2014-12-03 |
Family
ID=51982081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316336.4U Expired - Lifetime CN203984666U (en) | 2014-06-13 | 2014-06-13 | A kind of exciting acoustical generator for Medical Devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984666U (en) |
-
2014
- 2014-06-13 CN CN201420316336.4U patent/CN203984666U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111182426A (en) | Bone conduction speaker and compound speaker | |
| CN204810546U (en) | Single vibrating diaphragm structure move magnetism and piezoelectricity combined type broadband speaker | |
| US10154350B2 (en) | Micro-speaker using slope for connecting a first portion and a second portion of the base wall to avoid lead bumping | |
| US9497547B2 (en) | Speaker structure | |
| CN209787426U (en) | Vibration sound production device and electronic equipment | |
| CN103414985B (en) | The suspended structure of Microspeaker | |
| US20230145438A1 (en) | Multifunctional Electromagnetic Transducer | |
| US8891804B2 (en) | Electroacoustic transducer | |
| CN201015225Y (en) | Audio vibrator device | |
| CN114786104A (en) | A microphone structure and voice communication device | |
| CN107979671A (en) | Mobile terminal | |
| CN105007556A (en) | Piezoelectric electroacoustic transducer | |
| CN211406274U (en) | Bone conduction speaker and compound speaker | |
| CN103747396A (en) | Suspension type elastic diaphragm | |
| CN206226721U (en) | A kind of loudspeaker amplifies mechanism | |
| CN206620292U (en) | A kind of sound-producing device and electronic equipment | |
| CN203984666U (en) | A kind of exciting acoustical generator for Medical Devices | |
| CN108111946B (en) | Vibration sound production structure and terminal | |
| CN204291388U (en) | A kind of piezoelectric vibration loud speaker | |
| CN111405439A (en) | speaker | |
| CN104053101A (en) | Excitation acoustical generator used for medical equipment | |
| CN109874092A (en) | A new type of loudspeaker | |
| US20120170783A1 (en) | Speaker box | |
| CN212115655U (en) | A vibration device based on audio control | |
| CN103929702A (en) | Dual piezoelectric bone conduction hearing device based on displacement amplification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
|
| CX01 | Expiry of patent term |