CN205176703U - Transmitter water route control panel - Google Patents
Transmitter water route control panel Download PDFInfo
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- CN205176703U CN205176703U CN201520966561.7U CN201520966561U CN205176703U CN 205176703 U CN205176703 U CN 205176703U CN 201520966561 U CN201520966561 U CN 201520966561U CN 205176703 U CN205176703 U CN 205176703U
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- water
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Abstract
The utility model discloses a transmitter water route control panel, it includes power unit, water level sampling circuit and temperature sampling circuit, power unit includes 24V power and 5V power, water level sampling circuit including light separate, multistage not gate chip, two D trigger and polarity electric capacity, temperature sampling circuit includes that temperature detect switch, light separate, multistage not gate chip, triode, two D trigger and polarity electric capacity. Transmitter water route control panel mainly realizes two functions, automation when firstly the water level the is lower function of adding water, and the function that secondly can automatic turn -off condenser fan when the temperature is lower, through a large amount of experiments and the actual motion of long period, this board job stabilization, control had reliably both alleviateed the intensity of labour of operator on duty, guaranteed the normal broadcast of transmitter again.
Description
Technical field
The utility model relates to a kind of transmitter water route control panel.
Background technology
The predecessor of DF100A short-wave transmitter is the 418F/PSM100KW short-wave transmitter of ConUS (Continental) company.The cooling system of this model transmitter is mainly by air-cooled and water-cooled, and due to water temperature in summer higher (generally having 40-50 degree Celsius), and the sealing of reserve tank is not fine, and moisture easily evaporates.For keeping the normal chilled water of transmitter, need often to add water to transmitter, this clearly increases the labour intensity of person on duty, and wireless office will carry out unattended system future, water level more will ensure; In addition, winter, temperature was lower, particularly after at 12 in evening, at this moment add the cooling of condenser fan, the transmitter water temperature that do not broadcast can be made lower, probably make chilled water freeze, like this will bursting by freezing water pipe, can not normally cool when causing broadcasting, water pipe change get up and cumbersome, this just causes breaking of long period.
Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Utility model content
The utility model technical issues that need to address are to provide a kind of transmitter water route control panel.
For solving technical matters of the present utility model, the technical solution adopted in the utility model is:
Transmitter water route control panel, it comprises power unit, water level sampling circuit and water temperature sample circuit, and power unit comprises 24V power supply and 5V power supply;
Described water level sampling circuit comprise light every, multistage NOT gate chip, double D trigger and polar capacitor, the water level contact of sampling is respectively low-water level and adds water signal, stop adding water signal and high water stage diminishing signal, one termination 24V power supply of each water level contact, the other end by resistance deliver to light every input end, light every output terminal connect two-way one-level NOT gate chip, the input end of every road one-level NOT gate chip connects polar capacitor, the output terminal of one-level NOT gate chip is connected with trigger, flip-flop output is connected with two-stage NOT gate chip again, two-stage NOT gate chip output terminal exports motor control signal and low-water level and to add water control signal,
Described water temperature sample circuit comprise temperature detect switch (TDS), light every, multistage NOT gate chip, triode, double D trigger and polar capacitor, temperature detect switch (TDS) one termination 24V power supply, the temperature detect switch (TDS) other end deliver to light every input end, light connects two-way one-level NOT gate chip every output terminal, the input end of every road one-level NOT gate chip connects polar capacitor, the output terminal of one-level NOT gate chip is connected with trigger, flip-flop output is connected with two-stage NOT gate chip, two-stage NOT gate chip output terminal is connected with transistor base by resistance, and transistor collector is connected with temperature detect switch (TDS).
The beneficial effects of the utility model: transmitter water route control panel mainly realizes two functions, one be water level lower time automatic watering function, two is the functions that can automatically shut down condenser fan when water temperature is lower, through a large amount of tests and the actual motion of long period, this plate working stability, control reliable, both alleviated the labour intensity of operator on duty, and ensured again the normal broadcast of transmitter.
Accompanying drawing explanation
Fig. 1 is automatic watering functional circuit of the present utility model.
Fig. 2 of the present utility modelly automatically shuts down condenser fan functional circuit.
Fig. 3 is automatic watering process flow diagram of the present utility model.
Fig. 4 of the present utility modelly automatically shuts down condenser fan process flow diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Following examples, only for illustration of the utility model, are not used for limiting protection domain of the present utility model.
Transmitter water route of the present utility model control panel, it comprises power unit, water level sampling circuit and water temperature sample circuit,
Power unit comprises 24V power supply and 5V power supply, and wherein, 24V power supply directly uses the 24V power supply of the automated system of transmitter; 5V power supply, circuit board adopts 24-5V power module (input 24V, exports 5V), and gives light emitting diode instruction;
Water level sampling circuit comprises light every U5, multistage NOT gate chip, double D trigger and polar capacitor, the water level contact of sampling is respectively low-water level and adds water signal lowstartadd, stop adding water signal okstopadd and high water stage diminishing signal highstartdrain, light is held every the VO1 of U5, VO2 holds, VO4 end respectively with resistance R13, resistance R14, resistance R15 one end connects, resistance R13, resistance R14, the resistance R15 other end is connected with power supply 5V, a termination 24V power supply of each water level contact, and the other end is by resistance R10, R11, R12 delivers to the input end of light every U5, and light connects two-way one-level NOT gate chip U5A every the output terminal of U5, U5B, U5C, NOT gate chip U5B is connected with NOT gate chip U5C, and the input end of NOT gate chip U5A connects polar capacitor C8, and the input end of NOT gate chip U5B connects polar capacitor C9, the output terminal of NOT gate chip U5A, the output terminal of NOT gate chip U5C and the CLK of double D trigger, CLR holds connection, and double D trigger output terminal Q end is connected with two-stage NOT gate chip U5D again, and NOT gate chip U5D is Sheffer stroke gate chip U5E again, U5F connects, NOT gate chip U5E, U5F output terminal exports motor control signal and low-water level and to add water control signal,
The level switch that water level sampling adopts transmitter to use, be contained in water tank, set 3 different water level contacts, a termination 24V of each contact, the other end delivers to the input end (as Fig. 1) of light every U5.Time normal, 3 water level contacts all belong to off-state, and when the water level in water tank arrives certain height, corresponding junction closure, makes circuit turn-on, and 24V is delivered to light every U5.
Water temperature sample circuit comprises temperature detect switch (TDS), light every, multistage NOT gate chip, triode, double D trigger and polar capacitor, temperature detect switch (TDS) K1 mono-termination 24V power supply, the temperature detect switch (TDS) K1 other end delivers to the input end of light every U2, and light is held every U2 output terminal VO2, VO4 end connects two-way one-level NOT gate chip U3A, U3C, light is held every the VO2 of U2, VO4 end is by resistance R5, resistance R4 connects 5V power supply respectively, and NOT gate chip U3A Sheffer stroke gate chip U3B connects, and NOT gate chip U3C Sheffer stroke gate chip U3D connects, NOT gate chip U3A, the input end of U3C connects polar capacitor C6 respectively, polar capacitor C5, NOT gate chip U3D, the output terminal of NOT gate chip U3B and the CLK of double D trigger hold, CLR holds connection, the PR end of double D trigger connects 5V power supply by resistance R6, the CLR end of double D trigger connects polar capacitor C7, NOT gate chip U3B output terminal connects 5V power supply by diode D4, diode D4 two ends parallel resistance R7, double D trigger output terminal Q Sheffer stroke gate chip U3E connects, and NOT gate chip U3E output terminal is connected with triode Q1 base stage by resistance R8, and triode Q1 collector is connected with temperature detect switch (TDS) K1.
Water temperature sampling adopts temperature detect switch (TDS) KSD301 series of products.KSD301 series of products are a kind of bimetallic strip temperature detect switch (TDS)s as the temperature module, when electrical equipment normally works, bimetallic strip is in free state, contact is in closed/off-state, when temperature reaches operating temperature, bimetallic strip is heated and produces internal stress and rapidly action, opened/closed contact, cut off/connect circuit, thus play temperature control function.When electrical equipment is cooled to reset temperature, the automatic closed/open in contact, recovers normal operating conditions.This circuit have employed 10 DEG C and 25 DEG C of two kinds of temperature detect switch (TDS)s, and temperature detect switch (TDS) silica gel is adjacent on water pipe, a termination 24V, and the input end (be respectively T10 and T25 in Fig. 2) of light every U2 is delivered in one end.When electrical equipment normally works, temperature detect switch (TDS) is in off-state, when temperature reaches operating temperature, temperature detect switch (TDS) close, connect circuit, 24V signal is delivered to light every.
The control section of water level sampling circuit and water temperature sample circuit is mainly made up of 74LS74 double D trigger and 74LS14 not gate and attached components and parts, it is that the water level high-low signal come according to sampling exports control signal on the one hand, when the signal that adds water comes, control motor to draw water from bucket transmitter water tank, when the signal that stops adding water comes, motor stops operating, if water level is too high, diminishing signal arrives, and Controlling solenoid valve is opened, and discharges water from water tank; On the other hand according to the high-low signal of sampling water temperature, when water temperature is less than 10 DEG C, output control signal is low level, and condenser fan does not turn; When water temperature more than 25 DEG C, output control signal is high level, condenser fan work; When water temperature is between 10 DEG C and 25 DEG C, output control signal is hold mode, and namely output is high level before this, then is also high level now, exports as low level before this, then present output low level.
Sampling part have employed photoelectric isolation technology, enhances anti-interference.The level switch that water level sampling adopts transmitter to use, is contained in water tank, sets 3 different water level contacts; Water temperature sampling employs two temperature contacts, contact when being provided with water temperature 10 DEG C and 25 DEG C respectively.
Control section is export according to the height of water level the rotation that control signal controls motor on the one hand; Control condenser fan according to the height output control signal of water temperature on the other hand whether to rotate.
DF100A transmitter water route control panel adopts photoelectric isolation technology, uses 74LS74 chip as core component, is a kind of two rising edge d type flip flop chip.Respective sampling one road signal, realizes two functions: one is the height sampling water level, can realize automatic watering function when water level is lower, if add dilutional hyponatremia, more automatic diminishing; Two is the height sampling water temperature, realizes automatically shutting down condenser fan when water temperature is lower, the function that when water temperature is higher, condenser normally runs.
Automatic watering function:
As shown in figures 1 and 3, principle of work is as follows:
External input signal has 3: low-water level adds water signal lowstartadd, and stop adding water signal okstopadd, high water stage diminishing signal highstartdrain, these three signals all sample in the water tank of transmitter, from low to high.
When water level reaches corresponding sample position, sampled signal is 24V, otherwise is 0V.Output signal 3: motor control signal CTRLMOTOR, low-water level adds water control signal addstart, high water stage diminishing control signal highdrainctr.When water level is lower, the low-water level signal lowstartadd that adds water is 24V, all the other two input signals are 0V, light is every the 16 pin output low levels of U5, the CLK signal delivering to 74LS74 through one-level not gate is high level, U5-14 pin is high level, through two-stage not gate, the CLR signal giving 74LS74 is also high level, and output terminal Q exports high level, through two-stage not gate, motor control signal and the low-water level control signal that adds water is all high level, motor control signal pilot relay K2 adhesive, makes motor operations, draws water the water tank of transmitter from bucket; When cistern water level reaches setting value, stop the signal okstopadd that adds water to be 24V, light is every conducting, U5-14 is low level, and the CLR end delivering to 74LS74 is also low level, output terminal Q output low level, motor control signal is low level, and motor does not turn, thus reaches the object stopping adding water.When cistern water level add too high, high water stage diminishing signal highstartdrain is 24V, and light is every conducting, and high water stage diminishing control signal is low level, directly by relay K 2 Controlling solenoid valve, discharges water from water tank.
Automatically shut down condenser fan function as follows:
As shown in Figure 2 and Figure 4, principle of work is as follows:
Because 74LS74 accesses reset circuit, 74LS74 output low level after power-off, exports high level behind the door through non-, causes relay K 1 adhesive.
Reset delay t1=1.1*R7*C7, clock signal time delay t2=1.1*R4*C5, t2 > t1
Energising moment, CLR is low level, now chip output low level, and after t1, CLR is high level, and at this moment (t2 is greater than t1 to the next high level of clock signal clk, and the ratio CLR's that high level comes is late, and effectively), chip exports high level.Show as after energising that D2 pilot lamp is bright just goes out once, because the time is too short, relay K 1 also can not action, at this moment carries out work by the sampling contact of temperature control again.
If water temperature is less than 10 DEG C, (T10 and T25 is two water temperature contacts: T10 contact has 24V signal when water temperature is 10 DEG C or more, otherwise be 0V; T25 contact has 24V signal when being water temperature 25 DEG C or more, otherwise be 0V), light is every U2 not conducting, U2-10 and U2-14 bipod is all high level, this high level delivers to CLK end and the CLR end of 74LS74 respectively, makes output terminal Q export high level, triode Q1 not conducting, relay K 1 not adhesive, condenser fan does not turn.
If water temperature is more than 25 DEG C, so T10 contact is 24V, T25 contact is 24V, make light every U2-10 and U2-14 all output low levels of U2, CLK end and the CLR end of delivering to 74LS74 are also low levels, and output terminal Q exports high level, triode Q1 conducting, relay K 1 adhesive, makes condenser fan rotate.
If water temperature is 10 DEG C to 25 DEG C, T10 contact is 24V, T25 contact is 0V, makes light be respectively low level and high level every U2-10 and U2-14 of U2, and these two level deliver to 74LS74 again, output terminal Q output state is made to be hold mode, that is, if water temperature is gone up from 10 DEG C, just keep exporting for high level (less than 10 DEG C Q ends export high level), K1 not adhesive, condenser fan does not turn; If water temperature lowers from 25 DEG C, Q end keeps output low level, K1 adhesive, and condenser fan rotates.
Because after transmitter conjunction high pressure, water temperature can raise, for preventing water temperature over-high protection, circuit have employed the design throwing water route control panel under closing high pressure conditions away, reduce the fault because water route control panel fault causes condenser fan not turn.In order to realize later, machine room is unattended provides strong condition.
Claims (1)
1. transmitter water route control panel, is characterized in that: it comprises power unit, water level sampling circuit and water temperature sample circuit, and power unit comprises 24V power supply and 5V power supply;
Described water level sampling circuit comprise light every, multistage NOT gate chip, double D trigger and polar capacitor, the water level contact of sampling is respectively low-water level and adds water signal, stop adding water signal and high water stage diminishing signal, one termination 24V power supply of each water level contact, the other end by resistance deliver to light every input end, light every output terminal connect two-way one-level NOT gate chip, the input end of every road one-level NOT gate chip connects polar capacitor, the output terminal of one-level NOT gate chip is connected with double D trigger, double D trigger output terminal is connected with two-stage NOT gate chip again, two-stage NOT gate chip output terminal exports motor control signal and low-water level and to add water control signal,
Described water temperature sample circuit comprise temperature detect switch (TDS), light every, multistage NOT gate chip, triode, double D trigger and polar capacitor, temperature detect switch (TDS) one termination 24V power supply, the temperature detect switch (TDS) other end deliver to light every input end, light connects two-way one-level NOT gate chip every output terminal, the input end of every road one-level NOT gate chip connects polar capacitor, the output terminal of one-level NOT gate chip is connected with double D trigger, double D trigger output terminal is connected with two-stage NOT gate chip, two-stage NOT gate chip output terminal is connected with transistor base by resistance, and transistor collector is connected with temperature detect switch (TDS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966561.7U CN205176703U (en) | 2015-11-27 | 2015-11-27 | Transmitter water route control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966561.7U CN205176703U (en) | 2015-11-27 | 2015-11-27 | Transmitter water route control panel |
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| CN205176703U true CN205176703U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520966561.7U Expired - Fee Related CN205176703U (en) | 2015-11-27 | 2015-11-27 | Transmitter water route control panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404157A (en) * | 2016-11-02 | 2017-02-15 | 成都前锋电子仪器有限责任公司 | Low power consumption vibration detection circuit |
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2015
- 2015-11-27 CN CN201520966561.7U patent/CN205176703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404157A (en) * | 2016-11-02 | 2017-02-15 | 成都前锋电子仪器有限责任公司 | Low power consumption vibration detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20181127 |