CN207124631U - A kind of optical modem - Google Patents
A kind of optical modem Download PDFInfo
- Publication number
- CN207124631U CN207124631U CN201720737306.4U CN201720737306U CN207124631U CN 207124631 U CN207124631 U CN 207124631U CN 201720737306 U CN201720737306 U CN 201720737306U CN 207124631 U CN207124631 U CN 207124631U
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- CN
- China
- Prior art keywords
- triode
- fuselage
- thermovent
- rotor plate
- optical modem
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Abstract
It the utility model is related to a kind of optical modem, including fuselage, thermovent is provided with the fuselage, rotating shaft is provided with the thermovent, the motor rotated for drive shaft is provided with the fuselage, rotor plate is connected with the rotating shaft, temperature sensing device is additionally provided with the fuselage, the control device being connected with temperature sensing device and motor is additionally provided with the fuselage, the utility model has the advantages that：When temperature in fuselage rises to a certain default numerical value, temperature sensing device senses temperature value and then exports high temperature signal and start motor, motor drives axis of rotation, rotor plate rotates simultaneously, the hot gas in fuselage is discharged while rotor plate rotates, the air cooling air in the external world is discharged into fuselage simultaneously, accelerate the radiating rate of fuselage interior, after temperature returns to normal condition in fuselage, by rotor plate gear at thermovent, and then block thermovent, prevent the dust in the external world from entering fuselage.
Description
Technical field
The communications field is the utility model is related to, more particularly to a kind of optical modem.
Background technology
Optical modem, it is a kind of fibre optic transmission equipment for the trio for being directed to special user's environment and researching and developing.Should
Equipment uses large scale integrated chip (LSI chip), and circuit is simple, low in energy consumption, and reliability is high, is indicated with complete alarm status and perfect
Network management function.
The electronic component of optical modem fuselage interior at work easily generates heat, though the heat in fuselage without
When distributing, the electronic component damage in fuselage may result in.In the prior art in order to improve the radiating effect of fuselage, Chang
Thermovent is opened up on fuselage.However, because thermovent is by fuselage interior and ft connection, therefore extraneous ash while radiating
Dirt is easily accessible in fuselage, dust deposit on circuit boards when, may result in circuit board short circuit, this problem be badly in need of solve.
Utility model content
The purpose of this utility model is to provide a kind of optical modem, and having can prevent extraneous dust from entering fuselage interior
The characteristics of.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of light modulation demodulation
Device, including fuselage, thermovent are provided with the side wall of the fuselage, the shape of the thermovent is rectangular, in the thermovent
The lower edge of thermovent is provided with rotating shaft, the rotating shaft is located at the centre position in thermovent short transverse, the machine
The motor rotated for drive shaft is provided with it, and rotor plate, the shape of the rotor plate are connected with the rotating shaft
Adapted to size and the shapes and sizes of thermovent, temperature sensing device, the temperature sense dress are additionally provided with the fuselage
Put and sense that temperature in fuselage sends high temperature signal after exceeding a certain preset value, be additionally provided with the fuselage and temperature sense
The control device that device connects with motor, the control device start motor after receiving high temperature signal.
By using above-mentioned technical proposal, when the temperature in fuselage rises to a certain default numerical value, temperature sensing device
Sense temperature value and then export high temperature signal and start motor, motor drives axis of rotation, while rotor plate turns
It is dynamic, the hot gas in fuselage is discharged while rotor plate rotates, while the air cooling air in the external world is discharged into fuselage, accelerate fuselage
Internal radiating rate, after temperature returns to normal condition in fuselage, rotor plate gear is sealed at thermovent, and then by thermovent
It is stifled, prevent the dust in the external world from entering fuselage.
Preferably, sliding is provided with the gear that rotor plate being blocked to and then prevented, rotor plate from rotating at the thermovent
Plate.
By using above-mentioned technical proposal, after motor stops, to thermovent at slide baffle plate, baffle plate, which can block, to be turned
Dynamic plate, makes rotor plate stop operating, while blocks thermovent during rotor plate stopping, therefore more convenient.
Preferably, the surface of the rotor plate is provided with cushion, the cushion is made up of sponge material.
By using above-mentioned technical proposal, when rotor plate is rotated in the cold air suction fuselage by the external world, extraneous dust
Also fuselage interior can be entered, by cushion made of the installation sponge material on rotor plate, certain dust can be adsorbed, reduced
Into the dust of fuselage interior, simultaneous buffering layer can play certain cushioning effect, when rotor plate encounters baffle plate, cushion
It is capable of the impact of damped rotation plate and baffle plate, prevents rotor plate and baffle plate from breaking.
Preferably, being vertically arranged with slide rail above the thermovent, the baffle plate sliding is arranged on slide rail, described
Baffle plate is made up of magnetic material, and the electromagnetism that can attract baffle plate and then move up baffle plate is provided with above the slide rail
Iron.
By using above-mentioned technical proposal, when electromagnet starts, baffle plate moves up under the suction of electromagnet, enters
And baffle plate is left thermovent, be easy to rotor plate to rotate, electromagnet close when, baffle plate loses suction, now baffle plate itself
Slide downwards, kept off at thermovent under Action of Gravity Field, rotor plate is stopped operating.
Preferably, the rotor plate is made up of magnetic material, rotor plate can be attracted by being provided with below the baffle plate
Permanent magnet.
By using above-mentioned technical proposal, after rotor plate collides baffle plate, permanent magnet will can turn made of magnetic material
Dynamic plate absorption, and then rotor plate is maintained into state of the closure at thermovent, prevent rotor plate rotates from causing thermovent to be beaten
Open, and then cause the dust in the external world to enter fuselage interior from thermovent.
Preferably, the control device includes time-delay mechanism, the time-delay mechanism makes motor delayed startup.
By using above-mentioned technical proposal, after temperature sensing device sends high temperature signal, electromagnet first starts, make baffle plate to
Thermovent is left in upper sliding, and time-delay mechanism makes motor delayed startup, rotor plate is started after baffle plate leaves thermovent, enters
And prevent motor start after between rotor plate and baffle plate active force increase, cause the frictional force between baffle plate and rotor plate
It is excessive, baffle plate is not moved up normally, and then rotor plate is not rotated.
Preferably, the temperature sensing device includes：
Thermistor, one end of the thermistor are connected with power supply, and the other end of the thermistor is connected with variable
Resistance, the resistance of the thermistor decline with the rising of temperature, and is parallel with the thermistor and variable resistor
One resistance and second resistance；
Amplifier, the in-phase input end of the amplifier are connected between thermistor and variable resistor, the amplifier
Reverse input end be connected between first resistor and second resistance.
By using above-mentioned technical proposal, when the temperature in fuselage rises, the resistance decrease of thermistor, amplifier it is same
The incoming level of phase input rises, and when the input of the in-phase input end of amplifier is more than the input of its inverting input, puts
The output end output high temperature signal of big device.
Preferably, the control device includes：
First triode, the base stage of first triode and the output end of amplifier connect, first triode
Colelctor electrode is connected with 3rd resistor and is connected with power supply, and the emitter stage of first triode is connected to electromagnet and is grounded, institute
It is NPN type triode to state the first triode；
Second triode, the base stage of second triode and the output end of amplifier connect, second triode
Colelctor electrode is connected to power supply, and the emitter stage of second triode is connected to motor and is grounded, and second triode is
NPN type triode.
By using above-mentioned technical proposal, after the base stage of the first triode receives high temperature signal, the collection of the first triode
Electrode and emitter stage conducting, obtain electromagnet electric, electromagnet attracts baffle plate to move up, and then baffle plate is left thermovent, together
When the second triode base stage receive high temperature signal, the collector and emitter conducting of the second triode, motor obtains electric
And start.
Preferably, the time-delay mechanism includes：
3rd triode, the base stage of the 3rd triode and the output end of amplifier connect, the 3rd triode
Colelctor electrode is connected to power supply, the grounded emitter of the 3rd triode, and the 3rd triode is NPN type triode；
Relay, connected with the colelctor electrode of the 3rd triode, the relay includes delay switch, the delay switch string
It is coupled between the colelctor electrode and power supply of the second triode, the delay switch switchs for open type timing closing.
By using above-mentioned technical proposal, after the base stage of the 3rd triode receives high temperature signal, the collection of the 3rd triode
Electrode and emitter stage conducting, relay obtains electric, delay switch timing closing, and then makes motor delayed startup.
In summary, the utility model has the advantages that：Temperature in fuselage rises to a certain default numerical value
When, temperature sensing device senses temperature value and exports high temperature signal and start motor, and motor drives axis of rotation,
Rotor plate is rotated simultaneously, discharges the hot gas in fuselage while rotor plate rotates, while the air cooling air in the external world is discharged into machine
In body, accelerate the radiating rate of fuselage interior, after temperature returns to normal condition in fuselage, by rotor plate gear at thermovent,
And then block thermovent, prevent the dust in the external world from entering fuselage.
Brief description of the drawings
Fig. 1 is the structural representation of fuselage, for embodying the position of thermovent；
Fig. 2 is the sectional view of fuselage, for embodying the annexation of rotor plate and rotating shaft；
Fig. 3 is the circuit theory diagrams of temperature sensing device and control device, is filled for embodying temperature sensing device and control
The annexation put.
In figure, 1, fuselage；11st, thermovent；12nd, rotating shaft；13rd, motor；14th, rotor plate；15th, cushion；2nd, slide rail；
21st, baffle plate；22nd, electromagnet；23rd, permanent magnet；3rd, temperature sensing device；4th, control device；41st, time-delay mechanism.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Embodiment：A kind of optical modem, as depicted in figs. 1 and 2, the shape of fuselage 1 is in cuboid.The side of fuselage 1
Face offers the thermovent 11 connected with the inside of fuselage 1.The side of thermovent 11 is provided with motor 13, and motor 13 is embedding
Enter in the side wall of fuselage 1.Rotating shaft 12 is connected with motor 13.Rotating shaft 12 is horizontally disposed, and high in thermovent 11
Spend the centre position in direction.Rotor plate 14 is connected with rotating shaft 12, the size of rotor plate 14 matches with the size of thermovent 11.Turn
The surface of dynamic plate 14 is equipped with cushion 15, and cushion 15 is made up of sponge material.Rotor plate 14 is made up of magnetic material, fuselage
There is a slide rail 2 in 1 outside positioned at the top of thermovent 11 is vertically-mounted, in slide rail 2 sliding be connected with baffle plate 21, baffle plate 21 is by magnetic material
Material is made.The top of slide rail 2 is provided with electromagnet 22, suction is produced to baffle plate 21 when electromagnet 22 is powered so that make baffle plate 21 to
Upper movement.The lower section of baffle plate 21 is provided with permanent magnet 23 on the side inside thermovent 11, and permanent magnet 23 can be to magnetic
Material produces suction.
As shown in figure 3, also including temperature sensing device 3 in this optical modem, temperature sensing device 3 includes temperature-sensitive electricity
RN is hindered, thermistor RN one end is connected with power supply VCC, and the thermistor RN other end, which practices level, to be had variable resistor P and be grounded.Heat
Second resistance R2 and first resistor R1 are parallel with quick resistance RN and variable resistor P.Also include amplification in temperature sensing device 3
Device A, amplifier A input in the same direction are connected between thermistor RN and variable resistor P, and amplifier A inverting input connects
It is connected between first resistor R1 and second resistance R2.Amplifier A output end is connected with control device 4.Control device 4 includes the
One triode Q1 and the second triode Q2, the first triode Q1 and the second triode Q2 is NPN type triode.First triode
Q1 base stage is connected with amplifier A output end, and the first triode Q1 colelctor electrode is connected with 3rd resistor R3 and is connected to electricity
Source VCC, the first triode Q1 emitter stage are connected to electromagnet 22 and are grounded.Second triode Q2 base stage is with amplifier A's
Output end connects, and the emitter stage that the second triode Q2 colelctor electrode is connected to power supply VCC, the second triode Q2 is connected to driving electricity
Machine 13 and and ground connection.Also including time-delay mechanism 41 in control device 4, time-delay mechanism 41 includes the 3rd triode Q3, and the three or three
Pole pipe Q3 is NPN type triode, and the 3rd triode Q3 base stage is connected with amplifier A output end, the 3rd triode Q3 collection
Electrode is connected with relay KM and is connected to power supply VCC, the 3rd triode Q3 grounded emitter.Relay KM opens including delay
SM is closed, delay switch SM switchs for timing closing type open in usual.Relay KM is parallel to the current collection of switch and the second triode Q2
Between pole.
Application method：When temperature in fuselage 1 rises, thermistor RN resistance decrease, make amplifier A homophase input
The input at end is gradually increasing, and when the input of amplifier A in-phase input end is more than the input of inverting input, amplifier A's is defeated
Go out end output high level to the first triode Q1 base stage, the first triode Q1 collector and emitter conducting, electromagnet 22
Obtain electric and start, now electromagnet 22 produces suction to baffle plate 21, baffle plate 21 is moved upwardly off thermovent 11.While second
Triode Q2 base stage and the 3rd triode Q3 base stage obtain electric, the second triode Q2 and the 3rd triode Q3 conductings.Now after
Electrical equipment KM obtains electric, delay switch SM timing closings.Motor 13 obtains electric after delay switch SM closures, and motor 13 starts simultaneously
Driving rotor plate 14 rotates.While rotor plate 14 rotates and by the hot gas discharge in fuselage 1 and the cold air in the external world is inputted
In fuselage 1, accelerate the radiating in fuselage 1.
After temperature in fuselage 1 is reduced to normal temperature, amplifier A output end output low level.Electromagnet 22 and drive
Dynamic motor 13 is powered off, and baffle plate 21 is moved down in the presence of self gravitation and kept off at thermovent 11, what rotor plate 14 rotated
During collided with baffle plate 21, cushion 15 can will buffer the impact, while permanent magnet 23 can adsorb rotor plate 14
On baffle plate 21, and then rotor plate 14 is set to keep closure to prevent the dust in the external world from entering in thermovent 11 at thermovent 11.
Claims (9)
1. a kind of optical modem, including fuselage (1), thermovent (11), its feature are provided with the side wall of the fuselage (1)
It is, the shape of the thermovent (11) is rectangular, and the lower edge in the thermovent (11) parallel to thermovent (11) is set
There is rotating shaft (12), the rotating shaft (12) is located at the centre position in thermovent (11) short transverse, is provided with the fuselage (1)
For the motor (13) of drive shaft (12) rotation, rotor plate (14), the rotor plate are connected with the rotating shaft (12)
(14) shapes and sizes and the shapes and sizes of thermovent (11) are adapted to, and temperature sense dress is additionally provided with the fuselage (1)
Put (3), the temperature sensing device (3) senses that the temperature in fuselage (1) sends high temperature signal after exceeding a certain preset value, institute
State in fuselage (1) and be additionally provided with the control device (4) being connected with temperature sensing device (3) and motor (13), the control
Device (4) starts motor (13) after receiving high temperature signal.
2. a kind of optical modem according to claim 1, it is characterised in that thermovent (11) the place sliding is set
There is the baffle plate (21) that rotor plate (14) being blocked to and then prevented, rotor plate (14) from rotating.
3. a kind of optical modem according to claim 2, it is characterised in that the surface of the rotor plate (14) is set
There is cushion (15), the cushion (15) is made up of sponge material.
4. a kind of optical modem according to claim 3, it is characterised in that the top of the thermovent (11) is vertical
Slide rail (2) is provided with, baffle plate (21) sliding is arranged on slide rail (2), and the baffle plate (21) is made up of magnetic material, described
The electromagnet (22) that can attract baffle plate (21) and then move up baffle plate (21) is provided with above slide rail (2).
5. a kind of optical modem according to claim 4, it is characterised in that the rotor plate (14) is by magnetic material
It is made, the permanent magnet (23) that can attract rotor plate (14) is provided with below the baffle plate (21).
6. a kind of optical modem according to claim 5, it is characterised in that the control device (4) includes prolonging
When device (41), the time-delay mechanism (41) makes motor (13) delayed startup.
7. a kind of optical modem according to claim 6, it is characterised in that the temperature sensing device (3) includes：
Thermistor, one end of the thermistor are connected with power supply, and the other end of the thermistor is connected with variable resistor,
The resistance of the thermistor declines with the rising of temperature, and first resistor is parallel with the thermistor and variable resistor
And second resistance；
Amplifier, the in-phase input end of the amplifier are connected between thermistor and variable resistor, the amplifier it is anti-
It is connected to input between first resistor and second resistance.
8. a kind of optical modem according to claim 7, it is characterised in that the control device (4) includes：
First triode, the base stage of first triode and the output end of amplifier connect, the current collection of first triode
Pole is connected with 3rd resistor and is connected with power supply, and the emitter stage of first triode is connected to electromagnet (22) and is grounded, institute
It is NPN type triode to state the first triode；
Second triode, the base stage of second triode and the output end of amplifier connect, the current collection of second triode
Pole is connected to power supply, and the emitter stage of second triode is connected to motor (13) and is grounded, and second triode is
NPN type triode.
9. a kind of optical modem according to claim 8, it is characterised in that the time-delay mechanism (41) includes：
3rd triode, the base stage of the 3rd triode and the output end of amplifier connect, the current collection of the 3rd triode
Pole is connected to power supply, the grounded emitter of the 3rd triode, and the 3rd triode is NPN type triode；
Relay, connected with the colelctor electrode of the 3rd triode, the relay includes delay switch, and the delay switch is series at
Between the colelctor electrode and power supply of second triode, the delay switch switchs for open type timing closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737306.4U CN207124631U (en) | 2017-06-22 | 2017-06-22 | A kind of optical modem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737306.4U CN207124631U (en) | 2017-06-22 | 2017-06-22 | A kind of optical modem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124631U true CN207124631U (en) | 2018-03-20 |
Family
ID=61614129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720737306.4U Active CN207124631U (en) | 2017-06-22 | 2017-06-22 | A kind of optical modem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050099A (en) * | 2018-10-12 | 2020-04-21 | 青岛海尔多媒体有限公司 | Ventilation opening assembly of laser television and control method thereof |
-
2017
- 2017-06-22 CN CN201720737306.4U patent/CN207124631U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050099A (en) * | 2018-10-12 | 2020-04-21 | 青岛海尔多媒体有限公司 | Ventilation opening assembly of laser television and control method thereof |
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