CN108718187A - A kind of Novel noise signal generator - Google Patents
A kind of Novel noise signal generator Download PDFInfo
- Publication number
- CN108718187A CN108718187A CN201810484592.7A CN201810484592A CN108718187A CN 108718187 A CN108718187 A CN 108718187A CN 201810484592 A CN201810484592 A CN 201810484592A CN 108718187 A CN108718187 A CN 108718187A
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- CN
- China
- Prior art keywords
- generating unit
- shell
- sound hole
- jack
- circuit portion
- 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.)
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B29/00—Generation of noise currents and voltages
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
Abstract
The present invention discloses a kind of Novel noise signal generator,Including integrated waveform generating unit,Triangular wave generating unit,Differential circuit portion and shell,The integrated waveform generating unit and triangular wave generating unit are respectively positioned in shell,The bottom surface in the differential circuit portion mutually maintains an equal level with the bottom surface of shell,The integrated waveform generating unit,Triangular wave generating unit and differential circuit portion and the setting of shell one moulding by casting,The triangular wave generating unit is between integrated waveform generating unit and differential circuit portion,The first taper sound hole is provided on the shell,Second taper sound hole and third taper sound hole,The integrated waveform generating unit is located at the underface of the first taper sound hole,The tip face setting of the first taper sound hole and the second taper sound hole,The third taper sound hole wide end is connected to the first taper sound hole,The tip of the third taper sound hole is connected with the external world；The Novel noise signal generator is not easily damaged and is relatively easy to collect noise information.
Description
Technical field
The present invention relates to a kind of Novel noise signal generators.
Background technology
Signal generator is also known as signal source or oscillator, has a wide range of applications in production practices and sciemtifec and technical sphere.Respectively
Kind wavy curve can be indicated with trigonometric function equation.Multiple waveforms can be generated, such as triangular wave, sawtooth wave, rectangle
Wave（Containing square wave）, sine wave circuit be referred to as function signal generator.
The structure that existing signal generator once uses encapsulation is difficult to collect noise information, however encapsulation is not used to tie
Structure is easy impaired.
Invention content
The technical problem to be solved in the present invention is to provide it is a kind of not easily damaged and also be relatively easy to collect noise information it is new
Type noise signal generator.
To solve the above problems, the present invention adopts the following technical scheme that：
A kind of Novel noise signal generator, including integrated waveform generating unit, triangular wave generating unit, differential circuit portion and shell,
The integrated waveform generating unit and triangular wave generating unit are respectively positioned in shell, the bottom surface of the bottom surface and shell in the differential circuit portion
Mutually maintain an equal level, the integrated waveform generating unit, triangular wave generating unit and differential circuit portion and the setting of shell one moulding by casting are described
Triangular wave generating unit between integrated waveform generating unit and differential circuit portion, be provided on the shell the first taper sound hole,
Second taper sound hole and third taper sound hole, the integrated waveform generating unit are located at the underface of the first taper sound hole, and described
The tip face setting of one taper sound hole and the second taper sound hole, the third taper sound hole wide end connect with the first taper sound hole
Logical, the tip of the third taper sound hole is connected with the external world.
Preferably, the signal generator further includes having the output to the differential circuit portion to carry out digital-to-analog conversion
D/A conversion device.
Preferably, the signal generator further includes having to integrate the simulation output of D/A conversion device,
Export the integrating circuit portion of the wavy integrated waveform of triangle.
Compare preferably, the signal generator further includes the output to the integrating circuit portion and preset threshold value
Compared with comparison means of the output as the rectangular wave for the frequency as target for comparing output.
Preferably, be provided in the shell in reversed F-typed ceramic item, three ends of the ceramic item with
External world's connection, the integrated waveform generating unit and triangular wave generating unit are mounted on ceramic item, the differential circuit portion
It is close to ceramic item, is in reversed F-typed ceramic item by being provided with, good heat dissipation effect can be played, it can be to prevent
Only integrated waveform generating unit, triangular wave generating unit and differential circuit portion overheat and cause to damage.
Preferably, being provided with the first jack on the shell, first jack is located at the side of ceramic item, institute
It states and is provided with the second jack on ceramic item, first jack and the second jack are connected, first jack and second
Jack is inclined to set, and inserted with heat conducting pipe in first jack, the heat conduction pipe end is inserted into the second jack, described
First jack and the second jack are interference fitted with heat conducting pipe.By being provided with heat conducting pipe, can further be promoted whole
Heat dissipation effect, and the design of tilting is used, it can ensure that heat conducting pipe has longer length in less space, protect
Card has larger area of heat transfer.
Preferably, be provided with stomata on the ceramic item, the duct of the stomata is in reversed F-typed setting, by
It is provided with stomata on ceramic item so that ceramic item and the contact area of extraneous cold air increase, so as to have
The heat dissipation effect of the promotion entirety of effect, while reducing whole weight.
Preferably, the signal generator also includes connector, mounting groove, the number are provided in the connector
Word/Simulation Conversion Assembly, integrating circuit portion and comparison means are respectively positioned in mounting groove, and cable hole is provided on the connector,
The cable hole is connected with mounting groove, and tenon is provided on the connector, and mortise, the connection are provided on the shell
Body is connected by tenon with mortise with shell, by the way that D/A conversion device, integrating circuit portion and comparison means to be respectively mounted
In the mounting groove of connector, good protective action can be played, while connector and cage connection are reliable, dismounting is simple,
Staff can be facilitated to repair D/A conversion device, integrating circuit portion and comparison means.
Preferably, being provided with heat insulating mattress between the connector and shell, the heat insulating mattress covers mounting groove setting, institute
It states tenon through heat insulating mattress to be arranged, by being provided with heat insulating mattress, can prevent the integrated waveform generating unit in shell, triangular wave from giving birth to
At D/A conversion device, integrating circuit portion and the comparison means in portion and the mounting groove of differential circuit portion and connector
Heat is accumulated mutually.
Preferably, being provided with air pump and accumulator in the mounting groove, the air pump is connected with exhaust pipe, the exhaust pipe
It is arranged through connector, the connector and outer surface of outer cover are both provided with the tube seat to match with exhaust pipe, the exhaust pipe
End is inserted into stomata, and the heat insulating mattress upper surface is inlaid with normally opened temperature switch, the normally opened temperature switch and differential circuit
Portion is close at the back side, the air pump, normally opened temperature switch and accumulator series connection, once reach the operating temperature of normally opened temperature switch
When, normally opened temperature switch connects circuit, and the air in mounting groove is pumped into the stomata of ceramic item by air pump so that extraneous
Cold air can enter in mounting groove, be then pumped in stomata again, be finally discharged to the external world, to complete to each electricity
The cooling of sub- equipment, it is simple in structure, and also occupied space is few.
Beneficial effects of the present invention are：By the way that integrated waveform generating unit, triangular wave generating unit and differential circuit portion are all sealed
It is cased, good protection effect can be played, and by being provided with the first taper sound hole, the second taper on shell
Sound hole and third taper sound hole, can play the role of good amplify so that and noise information is easier to be collected into, in addition,
Be provided in shell in reversed F-typed ceramic item, three ends of ceramic item connects with the external world, integrated waveform generating unit with
Triangular wave generating unit is mounted on ceramic item, and differential circuit portion is close to ceramic item, is in reversed F-typed by being provided with
Ceramic item, good heat dissipation effect can be played, integrated waveform generating unit, triangular wave generating unit and differential can be prevented
Circuit portion overheats and causes to damage.The first jack is provided on shell, jack is located at the side of ceramic item, ceramic item
On be provided with the second jack, the first jack and the second jack are connected, and the first jack and the second jack are inclined to set, first
Be inserted into the second jack inserted with heat conducting pipe, heat conduction pipe end in jack, the first jack and the second jack with heat conducting pipe interference
Cooperation.By being provided with heat conducting pipe, whole heat dissipation effect can be further promoted, and use the design of tilting,
It can ensure that heat conducting pipe has longer length in less space, ensure that there is larger area of heat transfer.Ceramic
Stomata is provided on item, the duct of stomata is in reversed F-typed setting, by being provided with stomata on ceramic item so that ceramics are led
The contact area of hot item and extraneous cold air increases, and so as to effectively promote whole heat dissipation effect, while reducing whole
The weight of body.Mounting groove is provided in connector, D/A conversion device, integrating circuit portion and comparison means are respectively positioned on peace
In tankage, cable hole is provided on connector, cable hole is connected with mounting groove, and tenon is provided on connector, is set on shell
Mortise, connector and shell is equipped with to connect with mortise by tenon, by by D/A conversion device, integrating circuit portion and
Comparison means is installed in the mounting groove of connector, can play good protective action, while connector and cage connection
Reliably, dismounting is simple, and staff can be facilitated to repair D/A conversion device, integrating circuit portion and comparison means.Connection
Be provided with heat insulating mattress between body and shell, heat insulating mattress covers mounting groove setting, tenon through heat insulating mattress setting, by be provided with every
Heat pad can prevent the mounting groove of integrated waveform generating unit in shell, triangular wave generating unit and differential circuit portion and connector
The heat of interior D/A conversion device, integrating circuit portion and comparison means is accumulated mutually.Be provided in mounting groove air pump and
Accumulator, air pump are connected with exhaust pipe, and exhaust pipe is arranged through connector, connector and outer surface of outer cover is both provided with and exhaust pipe
The tube seat to match, exhaust pipe end are inserted into stomata, and heat insulating mattress upper surface is inlaid with normally opened temperature switch, normally opened temperature switch
It is close to the differential circuit portion back side, air pump, normally opened temperature switch and accumulator series connection, once reach the action of normally opened temperature switch
When temperature, normally opened temperature switch connects circuit, and the air in mounting groove is pumped into the stomata of ceramic item by air pump so that
Extraneous cold air can enter in mounting groove, be then pumped in stomata again, be finally discharged to the external world, to complete to each
The cooling of a electronic equipment, it is simple in structure, and also occupied space is few.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of sectional view of Novel noise signal generator of the present invention.
Fig. 2 is a kind of partial cutaway view of Novel noise signal generator of the present invention.
In figure：
1, integrated waveform generating unit；2, triangular wave generating unit；3, differential circuit portion；4, shell；5, the first taper sound hole；6, plug tap
Shape sound hole；7, third taper sound hole；8, D/A conversion device；9, integrating circuit portion；10, comparison means；11, ceramics are led
Hot item；12, heat conducting pipe；13, stomata；14, connector；15, mounting groove；16, cable hole；17, tenon；18, heat insulating mattress；19, gas
Pump；20, accumulator；21, exhaust pipe；22, normally opened temperature switch.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In embodiment, it is to be understood that term " centre ", "upper", "lower", " top ", " right side ", " left end ", " on
Side ", " back side ", " middle part ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention, does not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, the connection between component or fixed form if not otherwise specified in this embodiment, connection or
Fixed form can be to be fixed by bolt commonly used in the prior art or pin is fixed or axis pin connection, or be adhesively fixed,
Or it rivets the usual manners such as fixed and be not therefore described in detail in embodiment.
Embodiment 1
As shown in Figs. 1-2, a kind of Novel noise signal generator, including integrated waveform generating unit 1, triangular wave generating unit 2, differential
Circuit portion 3 and shell 4, the integrated waveform generating unit 1 and triangular wave generating unit 2 are respectively positioned in shell 4, the differential circuit portion
3 bottom surface and the bottom surface of shell 4 mutually maintain an equal level, the integrated waveform generating unit 1, triangular wave generating unit 2 and differential circuit portion 3 and outer
Shell one moulding by casting is arranged, and the triangular wave generating unit 2 is described between integrated waveform generating unit 1 and differential circuit portion 3
The first taper sound hole 5, the second taper sound hole 6 and third taper sound hole 7, the integrated waveform generating unit 1 are provided on shell 4
In the underface of the first taper sound hole 5, the tip face setting of the first taper sound hole 5 and the second taper sound hole 6, described the
7 wide end of triconic sound hole is connected to the first taper sound hole 5, and the tip of the third taper sound hole 7 is connected with the external world.Passing through will
Integrated waveform generating unit, triangular wave generating unit and differential circuit portion all encapsulate inside the shell, can play good protection effect,
And it by being provided with the first taper sound hole, the second taper sound hole and third taper sound hole on shell, can play good
The effect to amplify so that noise information is easier to be collected into.
The present embodiment has the beneficial effect that：By by integrated waveform generating unit, triangular wave generating unit and differential circuit portion all
Encapsulation inside the shell, can play good protection effect, and by being provided with the first taper sound hole, the second cone on shell
Shape sound hole and third taper sound hole, can play the role of good amplify so that noise information is easier to be collected into.
Embodiment 2
As shown in Figs. 1-2, a kind of Novel noise signal generator, including integrated waveform generating unit 1, triangular wave generating unit 2, differential
Circuit portion 3 and shell 4, the integrated waveform generating unit 1 and triangular wave generating unit 2 are respectively positioned in shell 4, the differential circuit portion
3 bottom surface and the bottom surface of shell 4 mutually maintain an equal level, the integrated waveform generating unit 1, triangular wave generating unit 2 and differential circuit portion 3 and outer
Shell one moulding by casting is arranged, and the triangular wave generating unit 2 is described between integrated waveform generating unit 1 and differential circuit portion 3
The first taper sound hole 5, the second taper sound hole 6 and third taper sound hole 7, the integrated waveform generating unit 1 are provided on shell 4
In the underface of the first taper sound hole 5, the tip face setting of the first taper sound hole 5 and the second taper sound hole 6, described the
7 wide end of triconic sound hole is connected to the first taper sound hole 5, and the tip of the third taper sound hole 7 is connected with the external world.Passing through will
Integrated waveform generating unit, triangular wave generating unit and differential circuit portion all encapsulate inside the shell, can play good protection effect,
And it by being provided with the first taper sound hole, the second taper sound hole and third taper sound hole on shell, can play good
The effect to amplify so that noise information is easier to be collected into.
Signal generator further includes having the digital-to-analog for carrying out digital-to-analog conversion to the output in the differential circuit portion 3 to turn
Changing device 8.
Signal generator further includes having the simulation output to D/A conversion device 8 to integrate, and exports triangular wave
The integrating circuit portion 9 of the integrated waveform of shape.
Signal generator further includes that the output to the integrating circuit portion 9 and preset threshold value are compared, and output is made
For compare output the frequency as target rectangular wave comparison means 10.
Be provided in the shell 4 in reversed F-typed ceramic item 11, three ends of the ceramic item 11 with the external world
Connection, the integrated waveform generating unit 1 and triangular wave generating unit 2 are mounted on ceramic item 11, the differential circuit portion 3
It is close to ceramic item 11, is in reversed F-typed ceramic item 11 by being provided with, good heat dissipation effect can be played, it can
Cause to damage to prevent integrated waveform generating unit 1, triangular wave generating unit 2 and differential circuit portion 3 from overheating.
The first jack is provided on the shell 4（It is not shown）, first jack is located at the side of ceramic item 11,
It is provided with the second jack on the ceramic item 11（It is not shown）, first jack and the second jack be connected, and described
One jack and the second jack are inclined to set, and are inserted inserted with heat conducting pipe 12,12 end of the heat conducting pipe in first jack
Enter in the second jack, first jack and the second jack are interference fitted with heat conducting pipe 12.It, can by being provided with heat conducting pipe 12
Further to promote whole heat dissipation effect, and the design of tilting is used, can ensure to lead in less space
Heat pipe has longer length, ensures there is larger area of heat transfer.
Stomata 13 is provided on the ceramic item 11, the duct of the stomata 13 is in reversed F-typed setting, by ceramics
Stomata 13 is provided on heat conduction item 11 so that ceramic item 11 and the contact area of extraneous cold air increase, so as to
It is effective to promote whole heat dissipation effect, while reducing whole weight.
Signal generator also includes connector 14, and mounting groove 15, the digital-to-analog are provided in the connector 14
Conversion equipment 8, integrating circuit portion 9 and comparison means 10 are respectively positioned in mounting groove 15, and cable hole is provided on the connector 14
16, the cable hole 16 is connected with mounting groove 15, and tenon 17 is provided on the connector 14, is provided on the shell 4
Mortise (not shown), the connector 14 and shell 4 are connected by tenon 17 with mortise, by by D/A conversion device
8, integrating circuit portion 9 and comparison means 10 are installed in the mounting groove 15 of connector 14, can play good protective action,
Simultaneously connector 14 connect with shell 4 reliably, dismounting simply, can facilitate staff repair D/A conversion device 8,
Integrating circuit portion 9 and comparison means 10.
Heat insulating mattress 18 is provided between the connector 14 and shell 4, the heat insulating mattress 18 covers the setting of mounting groove 15, institute
Tenon 17 is stated through heat insulating mattress 18 to be arranged, by being provided with heat insulating mattress 18, can prevent integrated waveform generating unit 1 in shell 4,
Triangular wave generating unit 2 and differential circuit portion 3 and the D/A conversion device 8 in the mounting groove of connector 14, integrating circuit portion
9 and the heat of comparison means 10 accumulate mutually.
Air pump 19 and accumulator 20 are provided in the mounting groove 15, the air pump 19 is connected with exhaust pipe 21, the exhaust
Pipe 21 is arranged through connector 14, and the connector 14 and 4 outer surface of shell are both provided with the tube seat to match with exhaust pipe 21
（It is not shown）, the exhaust pipe end is inserted into stomata 13, and 18 upper surface of the heat insulating mattress is inlaid with normally opened temperature switch 22, institute
It states normally opened temperature switch 22 with 3 back side of differential circuit portion to be close to, the air pump 19, normally opened temperature switch 22 and accumulator 20 are gone here and there
Connection, when reaching the operating temperature of normally opened temperature switch 22, normally opened temperature switch 22 connects circuit, and air pump 19 is by mounting groove 15
Interior air is pumped into the stomata 13 of ceramic item 11 so that extraneous cold air can enter in mounting groove 15, so
It is pumped to again in stomata 13 afterwards, is finally discharged to the external world, it is simple in structure to complete the cooling to each electronic equipment, and
Occupied space is few.
The present embodiment has the beneficial effect that：By by integrated waveform generating unit, triangular wave generating unit and differential circuit portion all
Encapsulation inside the shell, can play good protection effect, and by being provided with the first taper sound hole, the second cone on shell
Shape sound hole and third taper sound hole, can play the role of good amplify so that and noise information is easier to be collected into, this
Outside, it is provided in shell in reversed F-typed ceramic item, three ends of ceramic item are connect with the external world, and integrated waveform generates
Portion and triangular wave generating unit are mounted on ceramic item, and differential circuit portion is close to ceramic item, are in by being provided with
Reversed F-typed ceramic item, can play good heat dissipation effect, can prevent integrated waveform generating unit, triangular wave generating unit
It is overheated with differential circuit portion and causes to damage.The first jack is provided on shell, jack is located at the side of ceramic item, ceramics
The second jack is provided on heat conduction item, the first jack and the second jack are connected, the first jack and the second jack is inclined sets
It sets, is inserted into the second jack inserted with heat conducting pipe, heat conduction pipe end in the first jack, the first jack and the second jack are and heat conduction
Pipe is interference fitted.By being provided with heat conducting pipe, whole heat dissipation effect can be further promoted, and use tilting
Design can ensure that heat conducting pipe has longer length in less space, ensure there is larger area of heat transfer.Ceramics
Stomata is provided on heat conduction item, the duct of stomata is in reversed F-typed setting, by being provided with stomata on ceramic item so that pottery
Porcelain heat conduction item and the contact area of extraneous cold air increase, and so as to effectively promote whole heat dissipation effect, drop simultaneously
Low whole weight.Mounting groove, D/A conversion device, integrating circuit portion and the equal position of comparison means are provided in connector
In in mounting groove, being provided with cable hole on connector, cable hole is connected with mounting groove, and tenon, shell are provided on connector
On be provided with mortise, connector and shell and connected with mortise by tenon, by by D/A conversion device, integrating circuit
Portion and comparison means are installed in the mounting groove of connector, can play good protective action, while connector and shell
Connection is reliable, and dismounting is simple, and staff can be facilitated to repair D/A conversion device, integrating circuit portion and comparison means.
Heat insulating mattress is provided between connector and shell, heat insulating mattress covers mounting groove setting, and tenon is arranged through heat insulating mattress, passes through setting
There is heat insulating mattress, integrated waveform generating unit, the peace of triangular wave generating unit and differential circuit portion and connector in shell can be prevented
The heat of D/A conversion device, integrating circuit portion and comparison means in tankage is accumulated mutually.Gas is provided in mounting groove
Pump and accumulator, air pump are connected with exhaust pipe, and exhaust pipe is arranged through connector, and connector and outer surface of outer cover are both provided with and arrange
The tube seat that tracheae matches, exhaust pipe end are inserted into stomata, and heat insulating mattress upper surface is inlaid with normally opened temperature switch, normally opened temperature
Switch is close to the differential circuit portion back side, air pump, normally opened temperature switch and accumulator series connection, once reach normally opened temperature switch
When operating temperature, normally opened temperature switch connects circuit, and the air in mounting groove is pumped into the stomata of ceramic item by air pump,
Extraneous cold air is entered in mounting groove, is then pumped in stomata again, is finally discharged to the external world, to complete
Cooling to each electronic equipment, it is simple in structure, and also occupied space is few.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of Novel noise signal generator, it is characterised in that：Including integrated waveform generating unit, triangular wave generating unit, differential
Circuit portion and shell, the integrated waveform generating unit and triangular wave generating unit are respectively positioned in shell, the bottom in the differential circuit portion
Face and the bottom surface of shell mutually maintain an equal level, and the integrated waveform generating unit, triangular wave generating unit and differential circuit portion and shell integrally pour
Injection forming is arranged, and the triangular wave generating unit is arranged between integrated waveform generating unit and differential circuit portion on the shell
There are the first taper sound hole, the second taper sound hole and third taper sound hole, the integrated waveform generating unit to be located at the first taper sound hole
Underface, the tip face setting of the first taper sound hole and the second taper sound hole, the third taper sound hole wide end with
First taper sound hole is connected to, and the tip of the third taper sound hole is connected with the external world.
2. a kind of Novel noise signal generator according to claim 1, it is characterised in that：Further include having to differential electricity
The output in road portion carries out the D/A conversion device of digital-to-analog conversion.
3. a kind of Novel noise signal generator according to claim 2, it is characterised in that：Further include had to number/
The simulation output of Simulation Conversion Assembly is integrated, and the integrating circuit portion of the wavy integrated waveform of triangle is exported.
4. a kind of Novel noise signal generator according to claim 3, it is characterised in that：Further include to the integrating circuit
The output in portion and preset threshold value are compared, and export the ratio of the rectangular wave as the frequency as target for comparing output
Compared with device.
5. a kind of Novel noise signal generator according to claim 4, it is characterised in that：It is provided in the shell and is in
Three ends of reversed F-typed ceramic item, the ceramic item are connect with the external world, the integrated waveform generating unit and triangular wave
Generating unit is mounted on ceramic item, and the differential circuit portion is close to ceramic item.
6. a kind of Novel noise signal generator according to claim 5, it is characterised in that：Is provided on the shell
One jack, first jack are located at the side of ceramic item, are provided with the second jack on the ceramic item, and described
One jack and the second jack are connected, and first jack and the second jack are inclined to set, and are inserted into first jack
There are heat conducting pipe, the heat conduction pipe end to be inserted into the second jack, first jack and the second jack are matched with heat conducting pipe interference
It closes.
7. a kind of Novel noise signal generator according to claim 6, it is characterised in that：It is set on the ceramic item
It is equipped with stomata, the duct of the stomata is in reversed F-typed setting.
8. a kind of Novel noise signal generator according to claim 7, it is characterised in that：Also include connector, institute
It states and is provided with mounting groove in connector, the D/A conversion device, integrating circuit portion and comparison means are respectively positioned on mounting groove
It is interior, cable hole is provided on the connector, the cable hole is connected with mounting groove, and tenon is provided on the connector,
Mortise is provided on the shell, the connector is connected by tenon with mortise with shell.
9. a kind of Novel noise signal generator according to claim 8, it is characterised in that：The connector and shell it
Between be provided with heat insulating mattress, the heat insulating mattress covers mounting groove setting, and the tenon is through heat insulating mattress setting.
10. a kind of Novel noise signal generator according to claim 9, it is characterised in that：Setting in the mounting groove
There are air pump and accumulator, the air pump to be connected with exhaust pipe, the exhaust pipe is arranged through connector, outside the connector and shell
Surface is both provided with the tube seat to match with exhaust pipe, and the exhaust pipe end is inserted into stomata, the heat insulating mattress upper surface edge
Embedded with normally opened temperature switch, the normally opened temperature switch is close to the differential circuit portion back side, the air pump, normally opened temperature switch and
Accumulator is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484592.7A CN108718187A (en) | 2018-05-20 | 2018-05-20 | A kind of Novel noise signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484592.7A CN108718187A (en) | 2018-05-20 | 2018-05-20 | A kind of Novel noise signal generator |
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| Publication Number | Publication Date |
|---|---|
| CN108718187A true CN108718187A (en) | 2018-10-30 |
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| WO1999059225A1 (en) * | 1998-05-08 | 1999-11-18 | Ut Automotive Dearborn, Inc. | Foamed housing for a circuit board |
| US20090102557A1 (en) * | 2005-03-18 | 2009-04-23 | Yamaha Corporation | Class D amplifier |
| CN102739200A (en) * | 2011-03-31 | 2012-10-17 | 日本电波工业株式会社 | Signal generator |
| CN103625361A (en) * | 2012-08-24 | 2014-03-12 | F·波尔希名誉工学博士公司 | Method and device for generating noise in the vehicle interior and vehicle exterior of a motor vehicle |
| CN207234737U (en) * | 2017-09-30 | 2018-04-13 | 合肥朗伯光电传感技术有限公司 | A kind of low nose signal generator |
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2018
- 2018-05-20 CN CN201810484592.7A patent/CN108718187A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516038A (en) * | 1982-11-19 | 1985-05-07 | Sundstrand Corporation | Triangle wave generator |
| WO1999059225A1 (en) * | 1998-05-08 | 1999-11-18 | Ut Automotive Dearborn, Inc. | Foamed housing for a circuit board |
| US20090102557A1 (en) * | 2005-03-18 | 2009-04-23 | Yamaha Corporation | Class D amplifier |
| CN102739200A (en) * | 2011-03-31 | 2012-10-17 | 日本电波工业株式会社 | Signal generator |
| CN103625361A (en) * | 2012-08-24 | 2014-03-12 | F·波尔希名誉工学博士公司 | Method and device for generating noise in the vehicle interior and vehicle exterior of a motor vehicle |
| CN207234737U (en) * | 2017-09-30 | 2018-04-13 | 合肥朗伯光电传感技术有限公司 | A kind of low nose signal generator |
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Application publication date: 20181030 |
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| RJ01 | Rejection of invention patent application after publication |