CN208400012U - A kind of cooling system of power amplifier module - Google Patents
A kind of cooling system of power amplifier module Download PDFInfo
- Publication number
- CN208400012U CN208400012U CN201820513337.6U CN201820513337U CN208400012U CN 208400012 U CN208400012 U CN 208400012U CN 201820513337 U CN201820513337 U CN 201820513337U CN 208400012 U CN208400012 U CN 208400012U
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- CN
- China
- Prior art keywords
- circuit
- power amplifier
- temperature
- cooling system
- amplifier module
- 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 - Fee Related
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- Amplifiers (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a kind of cooling systems of power amplifier module, belong to power amplifier field, solve the problems, such as that existing power amplifier is when the temperature is excessively high easily damaging the internal component of power amplifier module, its key points of the technical solution are that: the fan including being installed on power amplifier enclosure interior, drive the actuator of the fan rotation, it further include the temperature sensor being provided with for detecting shell body temperature and output temperature detection signal, it is preset with temperature reference value and is coupled to the temperature sensor to receive temperature detection signal and temperature detection signal value compares with temperature reference value and export the comparison circuit of comparison signal, the comparison circuit is coupled to receive comparison signal and export the control circuit of control signal, the actuator is controlled by control signal；The actuator only drives the fan to rotate when temperature detection signal value is greater than temperature reference value, and the utility model has the effect of when the temperature is excessively high radiating to it to power amplifier module.
Description
Technical field
The utility model relates to a kind of power amplifier module, in particular to a kind of cooling system of power amplifier module.
Background technique
Power amplifier module is a kind of power amplifier module for being integrated together Switching Power Supply, power amplifier, is in cube shape.Power amplifier mould
Block very good solution interference problem of the Switching Power Supply to power amplifier, the features such as keeping power amplifier small in size, high-efficient, have obtained preferably
Performance, application range are also widened therewith.
Power amplifier module generally can all be provided with radiating module, but in use, easily there is function under conditions of hot weather
It lets off heat and leads to the case where reducing its service life.
Utility model content
The purpose of the utility model is to provide a kind of cooling systems of power amplifier module, can when power amplifier module is in high temperature
The characteristics of radiating to it.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of cooling system of power amplifier module, fan, the driving fan rotation including being installed on power amplifier enclosure interior
Actuator, further include be provided with for detect shell body temperature and output temperature detection signal temperature sensor, be preset with
Temperature reference value and the temperature sensor is coupled to receive temperature detection signal and by temperature detection signal value and temperature base
Quasi- value compares and exports the comparison circuit of comparison signal, is coupled to the comparison circuit to receive comparison signal and export control
The control circuit of signal, the actuator are controlled by control signal；The actuator is only greater than temperature in temperature detection signal value
The fan is driven to rotate when a reference value.
Using the above scheme, in use, the intracorporal temperature of temperature sensor real-time detection power amplifier module shell, when temperature is more than
When temperature reference value in comparison circuit, comparison circuit controls actuator running, so that fan be made to start turning, is dropped by fan
The low intracorporal temperature of shell, to achieve the purpose that automatic heat radiation.
Preferably, cooling system further includes being set between the comparison circuit and the control circuit to believe with zoom comparison
Number amplifying circuit.
Using the above scheme, the setting of amplifying circuit is for amplifying faint comparison signal to be easier to drive control circuit
Execution.
Preferably, cooling system further includes being coupled to the control circuit to receive control signal and in response to controlling signal
To realize the sound production prompt circuit of sound production prompt.
Using the above scheme, the setting of sound production prompt circuit is to inform that user's fan is in radiating state at this time.
Preferably, cooling system further includes being set between the control circuit and the sound production prompt circuit to be delayed
Control signal is stated in the delay circuit of the sound production prompt circuit.
Using the above scheme, the setting of delay circuit is transmitted to the control signal of sound production prompt circuit for being delayed, if wind
Fan still fails for the intracorporal temperature of shell to be reduced in normal temperature range in delay time, then sound production prompt circuit is made to start to send out
Sound prompt, if temperature can be reduced under normal temperature in delay time, sound production prompt circuit will not sound production prompt, this rises
To energy-efficient effect.
Preferably, cooling system further includes being set between the control circuit and the sound production prompt circuit to remove control
The filter circuit of interference signal in signal processed.
Using the above scheme, the setting of filter circuit can be such that sounding is more clear.
Preferably, the filter circuit is RC filtering.
Using the above scheme, the letter of RC filter circuit construction is answered and is easily installed.
Preferably, the comparison circuit includes the adjusting circuit for adjusting temperature reference value.
Using the above scheme, the setting of circuit is adjusted for user from main regulation temperature reference value, to adapt to varying environment
It needs.
Preferably, the actuator is motor.
Using the above scheme, the velocity of rotation of motor is fast, so that fan rotating block, good heat dissipation effect.
In conclusion the utility model has the following beneficial effects:
In use, the intracorporal temperature of temperature sensor real-time detection power amplifier module shell, when temperature is more than in comparison circuit
When temperature reference value, comparison circuit controls actuator running, so that fan be made to start turning, it is intracorporal to reduce shell by fan
Temperature, to achieve the purpose that automatic heat radiation.
Detailed description of the invention
Fig. 1 is power amplifier module, motor, the Structure explosion diagram between fan；
Fig. 2 be cooling system in temperature sensor, comparison circuit, adjust circuit, amplifying circuit, control circuit circuit connect
Map interlinking；
Fig. 3 is the circuit connection diagram of delay circuit, filter circuit, sound production prompt circuit, motor, fan in cooling system.
In figure: 1, shell；11, main body；111, heat release hole；12, cover board；2, fan；3, motor；41, temperature sensor；
42, comparison circuit；421, circuit is adjusted；43, amplifying circuit；44, control circuit；45, delay circuit；46, filter circuit；47,
Sound production prompt circuit.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of cooling system of power amplifier module, including motor 3, fan 2, it is installed on the interior of power amplifier module
Portion.
The model of power amplifier module can be with are as follows: BFB0618-40.BFB0618-40 power amplifier module is the frequency having in 6 ~ 18GHz
Section in input signal is amplified, continuous wave output power be greater than 10W, and can long time continuous working ability.
Technical indicator:
1. frequency: 6-18GHz；
2. output power: >=41dBm；
3. gain: >=45dB；
4. harmonics restraint: >=15dB；
5. power amplitude-frequency :≤3dB；
6. operating voltage :+28V；
7. operating temperature: -40 ~+70 DEG C；
8. storage temperature: -50 ~+85 DEG C.
Power amplifier module includes shell 1, and shell 1 includes again main body 11 and the cover board 12 that is placed in main body 11, main body 11
One side is equipped with several heat release holes 111, and motor 3 is installed on the bottom face of cover board 12, and fan 2 is installed on the shaft of motor 3,
And the blowout wind direction of fan 2 is in alignment with heat release hole 111.
As shown in Fig. 2, cooling system further includes temperature sensor 41, comparison circuit 42, amplifying circuit 43, control circuit
44。
Temperature sensor 41 is for detecting temperature in shell 1, the model LM235 of temperature sensor 41, one end connection
Power supply VCC and the other end output be temperature detection signal u1.
Comparison circuit 42 is for temperature detection signal u1 to be compared with the temperature reference value of itself comprising comparator
IC1, the adjusting circuit 421 for adjusting temperature reference value, the model LM324 of comparator IC1, positive input are coupled to
Temperature detection signal u1, reverse input end, which is coupled to, adjusts circuit 421.Adjusting circuit 421 includes potentiometer RP, potentiometer RP's
One end is connected to the reverse input end of comparator IC1 and the other end is connected to power supply VCC, and the output end output of comparator IC1 is
Comparison signal u2.
Amplifying circuit 43 is for amplifying comparison signal u2 comprising amplifier IC2, model LM393, forward direction input
End is coupled to comparison signal u2, and reverse input end is connected to one end of a resistance R1, and the other end of resistance R1 is connected to ground terminal
GND, is in series with a resistance R2 between reverse input end and output end, output end output is amplified signal u3.
Control circuit 44 includes triode VT1, relay KM1, the normally opened contact KM1-1 for being controlled by relay KM1；Three poles
The model NPN9013 of pipe VT1, base terminal are coupled to amplified signal u3, and emitter terminal is connected to one end of a resistance R3, electricity
The other end of resistance R3 is connected to ground terminal GND, and collector terminal is connected to one end of relay KM1, the other end connection of relay KM1
To power supply VCC；One end of normally opened contact KM1-1 is connected to power supply VCC and other end output, and for control signal u4, the end connects simultaneously
It is connected to one end of a resistance R4, the other end of resistance R4 is connected to ground terminal GND, the model HH53P11 of relay KM1.
As shown in figure 3, cooling system further includes above-mentioned motor 3, delay circuit 45, filter circuit 46, sound production prompt circuit
47。
One end of motor 3 is coupled to control signal u4.
Delay circuit 45 for be delayed output control signal u4 comprising energization delay relay KT1, be controlled by energization
The normally opened contact KT1-1 of time-delay relay KT1, one end of energization delay relay KT1 are coupled to control signal u4 and the other end
It is connected to ground terminal GND, it is time delayed signal u5 that one end of normally opened contact KT1-1, which is connected to power supply VCC and other end output, and energization is prolonged
When relay KT1 model H3Y-4-C.
Filter circuit 46 is used to remove the interference signal in control signal u4, filters for RC comprising resistance R5, capacitor
C1, one end of capacitor C1 is coupled to time delayed signal u5 and the other end is connected to ground terminal GND, and one end of resistance R5 is coupled to delay letter
Number u5 and other end output is filtering signal u6.
Sound production prompt circuit 47 is used for sound production prompt comprising acoustical generator SP, one end of acoustical generator SP are coupled to filtering letter
Number u6 and other end is connected to ground terminal GND.
Use process:
During power amplifier is run, dissipated if the value for the temperature detection signal u1 that the temperature sensor 41 in power amplifier exports is higher than
When the temperature reference value set in hot systems, comparator IC1 exports the comparison signal u2 of high level, and comparison signal u2 is by putting
Triode VT1 is connected after amplifying in big circuit 43, and triode VT1 is connected so that normally opened contact KM1-1 is closed and exports high electricity
Flat control signal u4；
Control signal u4 makes motor 3 that fan 2 be driven to rotate, while energization delay relay KT1 is powered so that normally opened
Contact KT1-1 is closed and exports the time delayed signal u5 of high level, and time delayed signal u5 makes sounding after the filtering of filter circuit 46
Device SP sounding.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
1. a kind of cooling system of power amplifier module, it is characterized in that: including being installed on the internal fan (2) of power amplifier shell (1), driving
The actuator of fan (2) rotation further includes being provided with for detecting shell (1) interior temperature and output temperature detection signal
Temperature sensor (41) is preset with temperature reference value and is coupled to the temperature sensor (41) to receive temperature detection signal simultaneously
By temperature detection signal value with temperature reference value compares and export the comparison circuit (42) of comparison signal, be coupled to it is described compared with
For circuit (42) to receive comparison signal and export the control circuit (44) of control signal, the actuator is controlled by control signal；
The actuator only drives the fan (2) to rotate when temperature detection signal value is greater than temperature reference value；
The comparison circuit (42) includes the adjusting circuit (421) for adjusting temperature reference value.
2. the cooling system of a kind of power amplifier module according to claim 1, it is characterized in that: cooling system further includes being set to
With the amplifying circuit (43) of zoom comparison signal between the comparison circuit (42) and the control circuit (44).
3. the cooling system of a kind of power amplifier module according to claim 1, it is characterized in that: cooling system further includes being coupled to
The control circuit (44) is to receive control signal and realize the sound production prompt circuit of sound production prompt in response to control signal
(47).
4. the cooling system of a kind of power amplifier module according to claim 3, it is characterized in that: cooling system further includes being set to
With the control signal that is delayed in the sound production prompt electricity between the control circuit (44) and the sound production prompt circuit (47)
The delay circuit (45) on road (47).
5. the cooling system of a kind of power amplifier module according to claim 3, it is characterized in that: cooling system further includes being set to
The filter circuit of interference signal in control signal is removed between the control circuit (44) and the sound production prompt circuit (47)
(46).
6. the cooling system of a kind of power amplifier module according to claim 5, it is characterized in that: the filter circuit (46) is RC
Filtering.
7. the cooling system of a kind of power amplifier module according to claim 1, it is characterized in that: the actuator is motor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513337.6U CN208400012U (en) | 2018-04-10 | 2018-04-10 | A kind of cooling system of power amplifier module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513337.6U CN208400012U (en) | 2018-04-10 | 2018-04-10 | A kind of cooling system of power amplifier module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208400012U true CN208400012U (en) | 2019-01-18 |
Family
ID=65064947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820513337.6U Expired - Fee Related CN208400012U (en) | 2018-04-10 | 2018-04-10 | A kind of cooling system of power amplifier module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208400012U (en) |
-
2018
- 2018-04-10 CN CN201820513337.6U patent/CN208400012U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 Termination date: 20200410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |