CN207124646U - A kind of interchanger - Google Patents
A kind of interchanger Download PDFInfo
- Publication number
- CN207124646U CN207124646U CN201720617872.1U CN201720617872U CN207124646U CN 207124646 U CN207124646 U CN 207124646U CN 201720617872 U CN201720617872 U CN 201720617872U CN 207124646 U CN207124646 U CN 207124646U
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- triode
- resistance
- fuselage
- temperature
- thermistor
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Abstract
It the utility model is related to a kind of interchanger, including fuselage, operating circuit is provided with the fuselage, the operating circuit is connected with power supply, in addition to thermovent, first temperature inductor, first controller, disconnect switch, second temperature inductor, second controller, the utility model have the advantages that：After temperature rises to default value in fuselage, the first temperature inductor sends high temperature signal, and the first controller controls radiator fan to start, fuselage interior is radiated after receiving the first temperature sensor signal；After radiator fan starts, if the temperature of fuselage interior does not decline and continues to rise on the contrary, and when temperature rises to a certain preset value, second controller controls disconnect switch to disconnect after receiving break signal, operating circuit is disconnected with power supply, and then prevent the component damage on operating circuit.
Description
Technical field
The communications field is the utility model is related to, more particularly to a kind of interchanger.
Background technology
Interchanger is a kind of network equipment for electric signal forwarding.It can be any two network of access switch
Node provides the pathway for electrical signals exclusively enjoyed.Most common interchanger is Ethernet switch.Other common also call voices
Interchanger, optical fiber switch etc..
In actual use, the electronic component inside interchanger can generate heat, when heat cannot distribute in time, meeting
Component is caused to damage, this problem is badly in need of solving.
Utility model content
The purpose of this utility model is to provide a kind of interchanger, and having can prevent its internal component because overheating what is be damaged
Feature.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of interchanger, including
Fuselage, operating circuit is provided with the fuselage, the operating circuit is connected with power supply, in addition to
Thermovent, the upper surface of fuselage is arranged at, radiator fan is provided with the thermovent；
First temperature inductor, fuselage interior is arranged at, it is default that first temperature inductor senses that temperature rises to
High temperature signal is sent after numerical value；
First controller, is coupled to radiator fan and the first temperature inductor, and first controller receives high temperature letter
Radiator fan is controlled to start after number；
Disconnect switch, power supply is coupled to, for controlling operating circuit to be powered and powering off；
Second temperature inductor, fuselage interior is arranged at, it is default that the second temperature inductor senses that temperature rises to
Break signal is sent during numerical value；
Second controller, is coupled to disconnect switch and second temperature sensor, and the second controller receives breaking letter
Disconnect switch is controlled to disconnect after number.
By using above-mentioned technical proposal, when the temperature of fuselage interior is relatively low, radiator fan does not work, and plays the saving energy
Effect, after temperature rises to default value in fuselage, illustrate heat that the component on operating circuit is sent do not obtain and
When distribute, now the first temperature inductor sends high temperature signal, and the first controller controls after receiving the first temperature sensor signal
Radiator fan starts, and fuselage interior is radiated；Radiator fan start after, if the temperature of fuselage interior not decline on the contrary after
It is continuous to rise, and when temperature rises to a certain preset value, the component in fuselage probably damages, now second temperature inductor
The temperature is sensed, and sends break signal, second controller controls disconnect switch to disconnect after receiving break signal, makes work
Circuit disconnects with power supply, and then prevents the component damage on operating circuit, when the temperature in fuselage returns to positive normal temperature
After degree, second temperature inductor stops sending break signal, and now disconnect switch closes, and operating circuit normally connects with power supply
Connect, operating circuit works on.
Preferably, first temperature inductor includes
First thermistor, the resistance of first thermistor decline with the rise of temperature；
First variable resistor, connected with the first thermistor；
First resistor and the 5th resistance are parallel with first thermistor and the first variable resistor；
First operational amplifier, including in-phase input end, inverting input and output end, first operational amplifier
In-phase input end is connected between the first thermistor and the first variable resistor, the inverting input of first operational amplifier
It is connected between first resistor and the 5th resistance.
By using above-mentioned technical proposal, when the temperature of fuselage interior rises, the resistance of the first thermistor is gradually reduced,
When temperature in fuselage rises to default numerical value, the resistance of the first thermistor reaches certain resistance, and now the first computing is put
The input of the input in the same direction of big device increases to certain numerical value, and the input of the inverting input of the first operational amplifier is kept not
Become, when the input of the in-phase input end of the first operational amplifier is more than the input of its inverting input, the first operational amplifier is defeated
Go out high temperature signal.
Preferably, first controller includes
First triode, including colelctor electrode, emitter stage and base stage, the colelctor electrode of first triode are in series with the 3rd electricity
Hinder and be connected with power supply, the base stage of first triode is connected to the output end of the first operational amplifier, the one or three pole
The output end of pipe is connected with radiator fan, and first 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, make radiator fan obtain electric and start, and then fuselage interior is radiated.
Preferably, being additionally provided with warning device on the fuselage, the warning device is in parallel with radiator fan.
By using above-mentioned technical proposal, while radiator fan starts, warning device obtains electric and sends alarm.
Preferably, the second temperature inductor includes
Second thermistor, the resistance of first thermistor decline with the rise of temperature；
The second adjustable resistance, connected with the second thermistor；
Second resistance and the 6th resistance, the second resistance are parallel with second thermistor and the second adjustable resistance
Resistance be more than first resistor resistance；
Second operational amplifier, including in-phase input end, inverting input and output end, second operational amplifier
In-phase input end is connected between the second thermistor and the second adjustable resistance, the inverting input of second operational amplifier
It is connected between second resistance and the 6th resistance.
By using above-mentioned technical proposal, after radiator fan starts, when the temperature in fuselage continues to rise, the second temperature-sensitive
The incoming level rising of the resistance decrease of resistance, the now in-phase input end of the second operational amplifier, when in the temperature in fuselage
When being raised to a certain preset value, the input inputted more than its reverse input end of the input in the same direction of the second operational amplifier, second
The output end output break signal of operational amplifier.
Preferably, the second controller includes
It is described to include first input end, the second input and output end with door with door, it is described with the first input end of door and
The output end connection of second operational amplifier, it is described to be connected with the second input of door with the colelctor electrode of the first triode；
Second triode, second triode include base stage, collector and emitter, the base stage of second triode
It is connected with the output end with door, the colelctor electrode of second triode is connected to power supply, and second triode is the pole of NPN type three
Pipe.
By using above-mentioned technical proposal, when distinguishing input high level with the second input and first input end of door, with
Door output high level makes disconnect switch to the base stage of the second triode, the collector and emitter conducting of the second triode
Disconnect.
Preferably, the disconnect switch includes
Relay, one end of the relay are connected with the emitter stage of the second triode, another termination of the relay
Ground；
Relay switch, it is series between power supply and operating circuit, the relay switch is normally closed switch.
By using above-mentioned technical proposal, relay obtain it is electric after control relay switch disconnect, and then by operating circuit with supply
Power supply disconnects, and is easy to the component on operating circuit to radiate.
Preferably, it is provided with air inlet on the fuselage.
By using above-mentioned technical proposal, for radiator fan in start-up course, gas enters fuselage from air inlet, in fuselage
Gas leave fuselage from thermovent, help speed up the circulation of fuselage interior and extraneous air, accelerate heat exchange.
The filter screen that dust enters is reduced preferably, being respectively arranged with the thermovent and air inlet.
By using above-mentioned technical proposal, filter screen can reduce the dust entered from thermovent and air inlet in fuselage, enter
And prevent that dust excessively causes short circuit on operating circuit.
In summary, the utility model has the advantages that：When the temperature of fuselage interior is relatively low, radiator fan not work
Make, play the effect for saving the energy, after temperature rises to default value in fuselage, illustrate what the component on operating circuit was sent
Heat is not distributed in time, and now the first temperature inductor sends high temperature signal, and the first controller receives the first temperature
Control radiator fan to start after induced signal, fuselage interior is radiated；After radiator fan starts, if the temperature of fuselage interior
Do not decline and continue to rise on the contrary, and when temperature rises to a certain preset value, the component in fuselage probably damages, now
Second temperature inductor senses the temperature, and sends break signal, and second controller controls open circuit after receiving break signal
Switch off, operating circuit is disconnected with power supply, and then prevent the component damage on operating circuit, when the temperature in fuselage
Degree return to normal temperature after, second temperature inductor stop send break signal, now disconnect switch close, operating circuit with
Power supply normally connects, and operating circuit works on.
Brief description of the drawings
Fig. 1 is the structural representation of fuselage, for embodying the position of thermovent；
Fig. 2 is the circuit theory diagrams of embodiment, for embodying the annexation between each component.
In figure, 1, fuselage；2nd, thermovent；3rd, radiator fan；4th, air inlet；5th, filter screen；6th, the first temperature inductor；61、
Second temperature inductor；7th, the first controller；71st, second controller；8th, disconnect switch；9th, warning device.
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 interchanger, as shown in figure 1, fuselage 1 is shaped as rectangle, the upper surface of fuselage 1 offers circle
The thermovent 2 of shape.Radiator fan 3 for carrying out thermolysis to the inside of fuselage 1 is installed in thermovent 2.The middle position of thermovent 2
It is provided with the top of radiator fan 3 for reducing dust into the screen pack 5 inside fuselage 1.The upper surface of fuselage 1 is positioned at scattered
Hot one side of mouth 2 is provided with warning device 9, and warning device 9 is indicator lamp.The side of fuselage 1 offers the air inlet for being shaped as circle
Mouthfuls 4, screen pack 5 is also installed at air inlet 4.Operating circuit is installed, operating circuit is connected with power supply inside fuselage 1.
As shown in Fig. 2 one end that the first temperature inductor 6 includes the first thermistor RN1, the first thermistor RN1 connects
The other end for being connected to power supply VCC, the first thermistor RN1 is in series with the first variable resistor P1 and is grounded.First thermistor RN1
The 5th resistance R5 and first resistor R1 is parallel with the first variable resistor P1.First temperature inductor 6 also includes the first fortune
Amplifier A1 is calculated, the in-phase input end of the first operational amplifier A 1 is connected to the first thermistor RN1 and the first variable resistor P1
Between, the inverting input of the first operational amplifier A 1 is connected between the 5th resistance R5 and first resistor R1.First computing is put
Big device A1 output end is connected to the first controller 7.First controller 7 is NPN including the first triode Q1, the first triode Q1
Type triode.First triode Q1 base stage is connected with the output end of the first operational amplifier A 1, the first triode Q1 current collection
Pole is connected with 3rd resistor R3 and is connected with power supply VCC, and the first triode Q1 emitter stage is connected with radiator fan 3 and is grounded.
Radiator fan 3 is in parallel with warning device 9.Second temperature inductor 61 includes the second thermistor RN2, the second thermistor RN2
One end be connected with power supply VCC, the second thermistor RN2 other end and be in series with the second adjustable resistance P2 and be grounded.Second heat
The 6th resistance R6 and second resistance R2 is parallel with quick resistance RN2 and the second adjustable resistance P2, second resistance R2 resistance is more than
First resistor R1 resistance.Second temperature inductor 61 also includes the second operational amplifier A 2, the second operational amplifier A 2
In-phase input end is connected between the second thermistor RN2 and the second adjustable resistance P2, the second operational amplifier A 2 it is anti-phase defeated
Enter end to be connected between the 6th resistance R6 and second resistance R2.The output end of second operational amplifier A 2 is connected to second controller
71.Second controller 71 include with door F, be connected with door F first input end with the output end of the second operational amplifier A 2, with door
F the second input is connected to the first triode Q1 colelctor electrode.The second triode Q2 is connected with door F output end.Second
Triode Q2 is NPN type triode, and the second triode Q2 base stage is connected with door F output end, the second triode Q2 collection
Electrode is connected with the 4th resistance R4 and is connected to power supply VCC, and the second triode Q2 emitter stage is connected to disconnect switch 8 and connect
Ground.Disconnect switch 8 includes the relay KT and relay switch ST to be connected with the second triode Q2 emitter stage.Relay switch
ST is connected between power supply and operating circuit.Relay switch ST is normally closed switch.
Application method：When the internal temperature of fuselage 1 rises, the first thermistor RN1 resistance decrease, the first operational amplifier
A1 in-phase input end input voltage rises.When temperature in fuselage 1 rises to a certain preset value, the first operational amplifier A 1
The input voltage of input in the same direction is more than the input voltage of its reverse input end, believes the output high temperature of the first operational amplifier A 1
Number to the first triode Q1 base stage.Its collector and emitter is led after first triode Q1 base stage receives high temperature signal
It is logical, make radiator fan 3 and warning device 9 it is electric, while with door F the second input input high level.Radiator fan 3 accelerates machine
The inside of body 1 and extraneous heat exchange, make the air in the external world enter from air inlet 4 inside fuselage 1, and air fuselage 1 inside is from scattered
Hot mouth 2 is discharged fuselage 1.The dust that filter screen 5 can be reduced in air enters in fuselage 1.Meanwhile warning device 9 sends alarm,
Even if user is reminded to pay close attention to the inner heat phenomenon of fuselage 1.
After radiator fan 3 starts, if the temperature in fuselage 1 continues to rise, the second thermistor RN2 resistance decrease.This
When the second operational amplifier A 2 the input voltage of in-phase input end gradually increase.When the temperature in fuselage 1 rise to it is a certain pre-
If during numerical value, when the input voltage of the in-phase input end of the second operational amplifier A 2 is more than the input voltage of its reverse input end,
First input end of the output end output high level of second operational amplifier A 2 extremely with door F.High level is exported with door F output end
To the second triode Q2 base stage, the second triode Q2 collector and emitter turns on.Relay KT obtains electric, relay switch
ST disconnects, and now operating circuit disconnects with power supply, is easy to the internal heat dissipating of fuselage 1.Temperature inside fuselage 1 reduces
To after a certain preset value, the second operational amplifier A 2 output low level, low level, the second triode Q2 current collection are exported with door F
Pole and output end disconnect, relay KT power-off, relay switch ST closures, and operating circuit works on.Temperature inside fuselage 1
After dropping to normal condition, the first operational amplifier A 1 output low level, radiator fan 3 and warning device 9 are stopped.
Claims (9)
1. a kind of interchanger, including fuselage (1), the fuselage (1) is interior to be provided with operating circuit, and the operating circuit is connected with confession
Power supply, it is characterised in that also include
Thermovent (2), the upper surface of fuselage (1) is arranged at, radiator fan (3) is provided with the thermovent (2)；
First temperature inductor (6), is arranged at fuselage (1) inside, and first temperature inductor (6) senses that temperature rises to
High temperature signal is sent after default value；
First controller (7), is coupled to radiator fan (3) and the first temperature inductor (6), and first controller (7) receives
Radiator fan (3) is controlled to start after to high temperature signal；
Disconnect switch (8), is coupled to power supply, for controlling operating circuit to be powered and powering off；
Second temperature inductor (61), is arranged at fuselage (1) inside, and the second temperature inductor (61) senses that temperature rises
Break signal is sent during to default value；
Second controller (71), is coupled to disconnect switch (8) and second temperature sensor, and the second controller (71) receives
Disconnect switch (8) is controlled to disconnect after break signal.
2. a kind of interchanger according to claim 1, it is characterised in that first temperature inductor (6) includes
First thermistor, the resistance of first thermistor decline with the rise of temperature；
First variable resistor, connected with the first thermistor；
First resistor and the 5th resistance are parallel with first thermistor and the first variable resistor；
First operational amplifier, including in-phase input end, inverting input and output end, the same phase of first operational amplifier
Input is connected between the first thermistor and the first variable resistor, the inverting input connection of first operational amplifier
Between first resistor and the 5th resistance.
3. a kind of interchanger according to claim 2, it is characterised in that first controller (7) includes
First triode, including colelctor electrode, emitter stage and base stage, the colelctor electrode of first triode are in series with 3rd resistor simultaneously
Power supply is connected with, the base stage of first triode is connected to the output end of the first operational amplifier, first triode
Output end is connected with radiator fan (3), and first triode is NPN type triode.
4. a kind of interchanger according to claim 3, it is characterised in that be additionally provided with warning device on the fuselage (1)
(9), the warning device (9) is in parallel with radiator fan (3).
5. a kind of interchanger according to claim 3, it is characterised in that the second temperature inductor (61) includes
Second thermistor, the resistance of first thermistor decline with the rise of temperature；
The second adjustable resistance, connected with the first thermistor；
Second resistance and the 6th resistance, the resistance of the second resistance are parallel with second thermistor and the second adjustable resistance
Resistance of the value more than first resistor；
Second operational amplifier, including in-phase input end, inverting input and output end, the same phase of second operational amplifier
Input is connected between the second thermistor and the second adjustable resistance, the inverting input connection of second operational amplifier
Between second resistance and the 6th resistance.
6. a kind of interchanger according to claim 5, it is characterised in that the second controller (71) includes
It is described to include first input end, the second input and output end, described and the first input end of door and second with door with door
The output end connection of operational amplifier, it is described to be connected with the second input of door with the colelctor electrode of the first triode；
Second triode, second triode include base stage, collector and emitter, the base stage of second triode with
The output end connection of door, the colelctor electrode of second triode are connected to power supply, and second triode is NPN type triode.
7. a kind of interchanger according to claim 6, it is characterised in that the disconnect switch (8) includes
Relay, one end of the relay are connected with the emitter stage of the second triode, the other end ground connection of the relay；
Relay switch, it is series between power supply and operating circuit, the relay switch is normally closed switch.
8. a kind of interchanger according to claim 1, it is characterised in that be provided with air inlet (4) on the fuselage (1).
9. a kind of interchanger according to claim 8, it is characterised in that the thermovent (2) and air inlet (4) place difference
The filter screen (5) for being reduced dust entrance is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617872.1U CN207124646U (en) | 2017-05-29 | 2017-05-29 | A kind of interchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617872.1U CN207124646U (en) | 2017-05-29 | 2017-05-29 | A kind of interchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124646U true CN207124646U (en) | 2018-03-20 |
Family
ID=61614035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720617872.1U Active CN207124646U (en) | 2017-05-29 | 2017-05-29 | A kind of interchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112312750A (en) * | 2020-11-27 | 2021-02-02 | 天津七一二通信广播股份有限公司 | Heat dissipation device of PCIE interface private network module and implementation method |
-
2017
- 2017-05-29 CN CN201720617872.1U patent/CN207124646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112312750A (en) * | 2020-11-27 | 2021-02-02 | 天津七一二通信广播股份有限公司 | Heat dissipation device of PCIE interface private network module and implementation method |
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