CN207817561U - A kind of constant temperature and humidity maintenance controller - Google Patents

Abstract

The utility model discloses a kind of constant temperature and humidities to conserve controller, and solving constant temperature and humidity maintenance controller in use usually can be due to extraneous（As powered off or tripping）And it can not be in normal work, and the problem of staff is often difficult to discover, is influenced the working efficiency of constant temperature and humidity maintenance controller due to factors such as carelessness, its key points of the technical solution are that:Including opening and closing detection device, current sensing means, voltage comparator device, coupling human body detection device, being coupled to human body detection device to receive human testing signal and export to judge the judgment means of signal, be coupled to judgment means and judge signal and in response to judging signal to realize the suggestion device of prompt to receive, a kind of constant temperature and humidity of the utility model conserves controller, it can be conserved when controller can not work normally in constant temperature and humidity and staff is prompted, to restore the normal work that constant temperature and humidity conserves controller as early as possible.

Description

A kind of constant temperature and humidity maintenance controller

Technical field

The utility model is related to a kind of mixing plant, more particularly to a kind of constant temperature and humidity conserves controller.

Background technology

Constant temperature and humidity maintenance controller be cement, sandstone aggregate and water mixing and mixing at concrete mixture machine Tool.

Constant temperature and humidity conserves controller in use usually can be due to extraneous（As powered off or tripping）And nothing Method is in the normal course of work, and then leads to the normal use for seriously affecting constant temperature and humidity maintenance controller, and the people that works Member influences the working efficiency of constant temperature and humidity maintenance controller, it is known that constant temperature and humidity is supported since the factors such as carelessness are often difficult to discover It includes motor to protect controller, and motor can generate heat when normal work, and there is room for improvement.

Utility model content

The purpose of this utility model is to provide a kind of constant temperature and humidity maintenance controller, can conserve controller in constant temperature and humidity Staff is prompted when can not work normally, to restore the normal work that constant temperature and humidity conserves controller as early as possible.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of constant temperature and humidity conserves controller, including whether be used to detect constant temperature and humidity maintenance controller in running order And it exports and opens and closes the keying detection device of detection signal, be set on the working line of constant temperature and humidity maintenance controller for inspection It surveys electric current and exports the current sensing means of corresponding current detection signal, is preset with current reference signal and be coupled to electric current inspection Device is surveyed to receive current detection signal and be compared current detection signal and current reference signal and output voltage compares The voltage comparator device of signal is coupled to voltage comparator device with receiving voltage comparison signal and exports the people of human testing signal Body detection device is coupled to human body detection device to receive human testing signal and export the judgment means for judging signal, coupling Judge signal and in response to judging signal to realize the suggestion device of prompt in judgment means to receive；

When switching electric current of the in the open state and electric current less than normal work of equipment is detected when opening and closing detection device And when judgment means judge someone around constant temperature and humidity maintenance controller, suggestion device is prompted at this time.

Using the above scheme, here by open and close detection device setting may be implemented to constant temperature and humidity conserve controller be The no detection in normal operating conditions, and may further determine that by the setting of current sensing means, voltage comparator device Constant temperature and humidity conserves the state whether controller is in power-off, when constant temperature and humidity maintenance controller is in the state of power-off, this When by human body detection device and judgment means can realize to constant temperature and humidity conserve controller around whether someone is detected, Detection constant temperature and humidity maintenance controller in open state and constant temperature and humidity maintenance controller be not in working condition and someone In the case of staff can be prompted by suggestion device, staff know in the case of can restore constant temperature as early as possible Constant humidity conserves the normal work of controller, reduces the case where constant temperature and humidity maintenance controller is in power-off.

Preferably, further including being set between current sensing means and voltage comparator device to amplify current detecting letter Number signal amplifying apparatus.

Using the above scheme, the amplification to current detection signal is effectively realized by signal amplifying apparatus here, by putting Checking of great current signal is it is possible to prevente effectively from current detection signal can not carry out normal since the signal strength of itself is too low Transmission, influence constant temperature and humidity maintenance controller normal work.

Preferably, the voltage comparator device includes the current reference circuit and coupling for output current reference signal Be connected to current reference circuit and current sensing means with and meanwhile receive current reference signal and current detection signal and by electric current base Calibration signal and current detection signal are compared and the voltage comparator circuit of output voltage comparison signal.

Using the above scheme, staff can be facilitated preferable as needed by the setting of current reference circuit here The running current of motor is defined, and the setting of voltage comparator circuit can facilitate staff to be completed as needed to motor Detection electric current and setting motor normal current comparison.

Preferably, the suggestion device includes being coupled to judgment means to judge signal and in response to judging signal to receive To realize the light prompt circuit of light prompt, be coupled to judgment means to receive the delay for judging signal and exporting time delayed signal Circuit and delay circuit is coupled to reception delay signal and in response to time delayed signal to realize the auditory tone cues of auditory tone cues Circuit.

Using the above scheme, the setting of light prompt circuit can carry out light prompt to staff, to avoid work people Member can also timely be prompted when can not hearing auditory tone cues under a riot of sound environment, and auditory tone cues electric circuit Setting auditory tone cues can be carried out to staff, and occur in staff not observing the light of light prompt circuit When, staff can preferably be reminded by the form of sound, therefore light prompt circuit and auditory tone cues electric circuit herein Staff can be adequately reminded in conjunction with setting.

Preferably, the auditory tone cues electric circuit includes being coupled to delay circuit with reception delay signal and exporting low-and high-frequency The low-and high-frequency switching part of the low-and high-frequency switching signal of switching signal and be coupled to low-and high-frequency switching part with receive low-and high-frequency switching Signal is to realize the pars stridulans of sounding.

Using the above scheme, strobe light emission can be achieved by the combination setting of switching part and illumination region, compared to single Light emitting species prompt, the form of strobe light emission can preferably prompt staff.

Preferably, further include be coupled to judgment means with receive the time set for judging signal and exporting timing signal, Time set is coupled to receive timing signal and in response to the control device of timing signal；

When switching electric current of the in the open state and electric current less than normal work of equipment is detected when opening and closing detection device And judgment means judge constant temperature and humidity maintenance controller around nobody when, at this time control device control redundant electrical power to constant temperature perseverance Wet curing controller is powered.

It using the above scheme, can be when can't detect staff by the setting of time set and control device After a period of time, constant temperature and humidity is automatically turned on by control device and conserves controller, when avoiding constant temperature and humidity maintenance controller long Between in the state of unattended for a long time be in stop working state.

Preferably, the time set includes being coupled to judgment means to judge signal and output time adjusting letter to receive Number time adjustment circuit and be coupled to time adjustment circuit with receiving time Regulate signal and export timing signal to judge The timing circuit of device.

Using the above scheme, staff is facilitated actively to adjust phase according to individual demand by the setting of time adjustment circuit Should how long people not when control device for opening.

Preferably, the light prompt circuit is light emitting diode.

Using the above scheme, staff can be carried by setting light prompt circuit to luminous yoke diode Show, and cost is relatively low.

In conclusion the utility model has the advantages that：Here by opening and closing detection device and current detecting The state that the setting of device conserves constant temperature and humidity controller is analyzed, and combines human body detection device, judgment means can Whether at the scene according to people, it is prompted by suggestion device if field, and can timely be started when no one is on the scene Stand-by power supply makes constant temperature and humidity maintenance controller resume work as soon as possible.

Description of the drawings

Fig. 1 be open and close detection device, current sensing means, signal amplifying apparatus circuit connection diagram；

Fig. 2 is the circuit connection diagram of voltage comparator device, human body detection device, judgment means；

Fig. 3 is the circuit diagram of suggestion device；

Fig. 4 is the circuit connection diagram of time set, control device.

In figure：1, detection device is opened and closed；2, current sensing means；3, voltage comparator device；4, judgment means；5, signal is put Big device；6, current reference circuit；7, voltage comparator circuit；8, control device；9, human body detection device；10, suggestion device； 11, low-and high-frequency switching part；12, pars stridulans；13, time set；15, time adjustment circuit；16, timing circuit；17, auditory tone cues Circuit；18, light prompt circuit；19, delay circuit.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

As shown in Figure 1, a kind of constant temperature and humidity maintenance controller disclosed in the present embodiment, including be used to detect constant temperature and humidity and support Whether shield controller is in running order and exports the keying detection device 1 of keying detection signal, is set to constant temperature and humidity maintenance For detecting electric current and export the current sensing means 2, default of corresponding current detection signal on the working line of controller There is current reference signal and is coupled to current sensing means 2 to receive current detection signal and by current detection signal and electric current base Calibration signal is compared and the voltage comparator device of output voltage comparison signal 3, is coupled to voltage comparator device 3 with receiving voltage Comparison signal simultaneously exports the human body detection device 9 of human testing signal, is coupled to human body detection device 9 to receive human testing letter Number and export judge the judgment means 4 of signal, be coupled to judgment means 4 with receive judge signal and in response to judging signal with reality The suggestion device 10 now prompted；Detect that the switch of equipment is in the open state and electric current is less than normal when opening and closing detection device 1 When the electric current of work and when judgment means 4 judge someone around constant temperature and humidity maintenance controller, suggestion device 10 carries out at this time Prompt.

Open and close detection device 1 including one end be connected to the button SB1 of power supply and one end be connected to button SB1's and another The relay KA1 of one end ground connection, it is controlled by relay KA1 and one end is connected to the switch KA1-3 of power supply, is controlled by relay KA1 and the other end are connected to the switch KA1-2 of thermistor RT, the model HH52P of relay KA1 here.

The course of work of foregoing circuit is as follows：

After by lower button SB1, relay KA1 will be powered conducting at this time, not only can when relay KA1 is connected Trigger switch KA1-1 is closed so that relay KA1 is in the state of conducting for a long time, can also corresponding trigger switch KA1-3 with And switch KA1-2 is in the state being closed.

When switch KA1-3 is in the state being closed, constant temperature and humidity maintenance controller can be made in running order；And works as and open When pass KA1-2 is in closed state, switch KA1-2 will detection of the trigger current detection device 22 to electric current at this time.

As shown in Figure 1, current sensing means 2 is the current sensor that one end ground connection and the other end are connected to switch KA1-2, The model ACS712 of current sensor.

It further includes being set between current sensing means 2 and voltage comparator device 3 to put that constant temperature and humidity, which conserves controller, The signal amplifying apparatus 5 of checking of great current signal.

As shown in Fig. 2, resistance R3, normal phase input end that signal amplifying apparatus 5 here, which includes one end, to be grounded are connected to cunning The voltage amplifier A1 of dynamic rheostat RP1, one end is connected to the tie point of thermistor RT and resistance R1 and the other end is connected to The resistance R2 of the inverting input of voltage amplifier A1, the model AD620 of voltage amplifier here.

As shown in Fig. 2, voltage comparator device 3 includes the current reference circuit 6 and coupling for output current reference signal Be connected to current reference circuit 6 and current sensing means 2 with and meanwhile receive current reference signal and current detection signal and by electric current Reference signal and current detection signal are compared and the voltage comparator circuit 7 of output voltage comparison signal.

As shown in Fig. 2, current reference circuit 6 is connected to the resistance R4 of power supply including one end and one end is connected to resistance R4 And the slide rheostat RP2 of other end ground connection, voltage comparator circuit 7 here are connected to voltage amplifier including inverting input A1 and normal phase input end are connected to the voltage comparator A2 of resistance R4 and slide rheostat RP2, voltage comparator A2 here Model LM393.

As shown in Fig. 2, human body detection device 9 include base stage be connected to voltage comparator A2 output end triode Q1, One end is connected to the relay KM1 of the emitter of triode Q1 and is controlled by switch KM1-2 and one end of relay KM1 It is connected to the pyroelectric sensor of switch KM1-2, the model HC-SR501 of pyroelectric sensor, the model of relay KM1 HH52P。

As shown in Fig. 2, judgment means 4 are connected to the phase inverter of pyroelectric sensor including one end, one end is connected to reverse phase The relay KM2 and one end of device and other end ground connection are connected to pyroelectric sensor and the relay KM3 of other end ground connection, The model HH52P of relay KM2 and relay KM3.

As shown in figure 3, suggestion device 10 includes being coupled to judgment means 4 to judge signal and in response to judging signal to receive Judge signal to receive to realize the light prompt circuit 18 of light prompt, be coupled to judgment means 4 and export time delayed signal Delay circuit 19 and delay circuit 19 is coupled to reception delay signal and in response to time delayed signal to realize auditory tone cues Auditory tone cues electric circuit 17.

Light prompt circuit 18 is the light emitting diode D1 that one end is connected to the switch KM3-1 for being controlled by relay KM3, is prolonged When circuit 19 be that one end is connected to the time relay KT4 of the switch KM3-1 for being controlled by relay KM3, time relay KT4's Model H3Y-2.

Auditory tone cues electric circuit 17 includes being coupled to delay circuit 19 with reception delay signal and exporting low-and high-frequency switching signal Low-and high-frequency switching signal low-and high-frequency switching part 11 and be coupled to low-and high-frequency switching part 11 to receive low-and high-frequency switching signal To realize the pars stridulans 12 of sounding.

Sound switching part includes that one end is connected to the audio signal generator for the switch KM2-1 for being controlled by relay KM2, one End is connected to the switch KT2-2 of audio signal generator, one end is connected to the time relay KT1 of switch KT2-2, one end connection It is connected to switch KT1- in the switch KT1-1 and switch KT1-3, one end of time relay KT1 and the tie point of switch KT2-2 3 switch KT2-1, one end is connected to time relay KT1 and the other end is connected to the time relay KT2 of switch KT1-2；Sound Sound prompting part includes that one end is connected to the inductance L1 of switch KT1-1, one end is connected to the capacitance C1 of inductance L1, is parallel to capacitance C1 The loud speaker BL1 at both ends, one end are connected to the capacitance C1 of switch KT2-1, one end is connected to the inductance L2 of capacitance C1, are parallel to electricity Feel the loud speaker BL2 at the both ends L2, switch KT1-1, switch KT1-2, switch KT1-3 are controlled by time relay KT1, switch KT2-1, switch KT2-2 are controlled by time relay KT2, are high frequency sounding by the position that loud speaker BL1 and capacitance C1 are constituted, by The position that loud speaker BL2 and capacitance C2 is constituted is low frequency sounding, time relay KT1, time relay KT2 model be H3Y-2, the model TAG101 of audio signal generator.

The course of work of foregoing circuit is as follows：

When relay KM2 triggering and conductings, switch KM2-1 will be in closed state at this time, at this time audio signal Generator generates corresponding audio signal, makes high frequency sounding by switch KT1-1 first, and at the same time time relay KT1 Start timing, the time set by the time relay KT1 to when, stop high frequency prompt at this time, and at the same time can touch Send out switch KT1-2 and KT1-3 closure, time relay KT2 starts timing at this time, at this time audio signal be passed through capacitance C2 and Low frequency prompt is carried out at loud speaker BL2；Time set by the time relay KT2 to when, switch can be controlled at this time KT2-2 is closed, and then realizes restarting process, and then is completed low-and high-frequency and automatically switched prompt, and high-frequency sound is more sharp, and Low-frequency sound is more dull, and effective remind arrives user.

As shown in figure 4, constant temperature and humidity maintenance controller further includes being coupled to judgment means 4 to judge signal with reception and export The time set 13 of timing signal is coupled to time set 13 to receive timing signal and in response to the control device of timing signal 8；When opening and closing detection device 1 and detecting the in the open state and electric current of switch of equipment less than the electric current worked normally and sentence When disconnected device 4 judges around constant temperature and humidity maintenance controller nobody, it is foster to constant temperature and humidity to control redundant electrical power for control device 8 at this time Shield controller is powered.

Time set 13 includes being coupled to judgment means 4 to receive the time tune for judging signal and output time Regulate signal Economize on electricity and is coupled to time adjustment circuit 15 with receiving time Regulate signal and exports timing signal to judgment means 4 road 15 Timing circuit 16.

Time adjustment circuit 15 is the slide rheostat RP3 that one end is connected to switch KM1-1, and timing circuit 1616 is one end It is connected to the capacitance C1 of one end of slide rheostat RP3 and other end ground connection, the capacitance C2 and the 6th foot and the of one end ground connection Seven feet are connected to the connecting pin of slide rheostat RP3 and capacitance C1 and the 5th foot is connected to the 555 timer A1 of capacitance C2, and 555 The first foot of timer A1 is connected to the connecting pin of capacitance C1 and capacitance C2.

Control device 8 is connected to the triode Q2 of 555 timer A7 including base stage and one end is connected to triode Q2's The relay KM4 of emitter, triode Q2 are NPN type and model S9014, the model HH52P of relay KM4.

Specific operating process is as follows：

After staff presses lower button KA1, relay KA1 is in the state of conducting for a long time at this time, at this time can be simultaneously Trigger the detection of constant temperature and humidity maintenance controller and current sensing means 22 to electric current.

Constant temperature and humidity maintenance controller electric current when normal work is higher compared to the electric current being stopped, and leads at this time Over-current sensor is detected the electric current on circuit.

With the variation of electric current, the current detection signal that corresponding current sensor is exported will also change therewith, Then pass sequentially through resistance R1, voltage amplifier A1 effectively realizes amplification to current detection signal, and specifically amplify and be Number specifically can change amplification coefficient by changing the parameter of resistance R3 or slide rheostat RP1, resistance R2.

When amplified current detection signal is input at voltage comparator A2, voltage comparator A2 by the electric current of benchmark and The electric current detected is compared in the form of a signal, is less than current reference signal and if only if the current detection signal detected When, voltage comparator A2 will export the voltage comparison signal of high level at this time.

When triode Q1 receives the voltage comparison signal of high level, at this time triode Q1 will triggering and conducting, And then effectively trigger relay KM1 conductings energization is started to work.

When relay KM1 triggerings are powered, switch KM1-2 is in closed state at this time, can pass sequentially through heat at this time Releasing electric transducer, whether someone is detected to surrounding.

When someone, relay KM3 meeting triggering and conductings carry out luminous prompting, then in luminous prompting first at this time Do not have also the case where effect that can carry out low-and high-frequency auditory tone cues.

And when no one, relay KM2 can triggering and conducting, at this time by 13 timing of time set after, at this time can phase The trigger triode Q2 conductings answered, meeting trigger relay KM4 conductings, when relay KM4 is connected, lay at this time accordingly Power supply can conserve controller to constant temperature and humidity and charge.

To sum up, it by above-mentioned setting, effectively realizes when it is work that constant temperature and humidity, which conserves under controller open state, Wait and staff at the scene when light prompt and auditory tone cues are carried out to staff, and do not exist in staff After live a period of time, redundant electrical power can be started in time and charged to constant temperature and humidity maintenance controller.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (8)

1. a kind of constant temperature and humidity conserves controller, it is characterized in that：Including being used to detect whether constant temperature and humidity maintenance controller to be in Working condition simultaneously exports the active line for opening and closing the keying detection device (1) of detection signal, being set to constant temperature and humidity maintenance controller Road for detect electric current and export the current sensing means (2) of corresponding current detection signal, be preset with current reference letter Number and be coupled to current sensing means (2) to receive current detection signal and carry out current detection signal and current reference signal Compare and the voltage comparator device of output voltage comparison signal (3), is coupled to voltage comparator device (3) letter is compared with receiving voltage Number and export the human body detection device (9) of human testing signal, be coupled to human body detection device (9) to receive human testing signal And export judge the judgment means (4) of signal, be coupled to judgment means (4) with receive judge signal and in response to judge signal with Realize the suggestion device (10) of prompt；

Switching when in the open state and electric current is less than the electric current of normal work simultaneously for equipment is detected when opening and closing detection device (1) And judgment means (4) judge constant temperature and humidity maintenance controller around someone when, suggestion device (10) is prompted at this time.

2. a kind of constant temperature and humidity according to claim 1 conserves controller, it is characterized in that：Further include being set to current detecting To amplify the signal amplifying apparatus (5) of current detection signal between device (2) and voltage comparator device (3).

3. a kind of constant temperature and humidity according to claim 1 conserves controller, it is characterized in that：The voltage comparator device (3) Include the current reference circuit (6) for output current reference signal and is coupled to current reference circuit (6) and current detecting Device (2) to receive current reference signal and current detection signal and carry out current reference signal and current detection signal simultaneously Compare the voltage comparator circuit (7) of simultaneously output voltage comparison signal.

4. a kind of constant temperature and humidity according to claim 3 conserves controller, it is characterized in that：The suggestion device (10) includes It is coupled to judgment means (4) and judges signal and in response to judging signal to realize the light prompt circuit of light prompt to receive (18), judgment means (4) are coupled to judge signal and export the delay circuit (19) of time delayed signal and be coupled to prolong to receive When circuit (19) with reception delay signal and in response to time delayed signal to realize the auditory tone cues electric circuit (17) of auditory tone cues.

5. a kind of constant temperature and humidity according to claim 4 conserves controller, it is characterized in that：The auditory tone cues electric circuit (17) Including be coupled to delay circuit (19) with reception delay signal and export low-and high-frequency switching signal low-and high-frequency switching signal height Low frequency switching part (11) and low-and high-frequency switching part (11) is coupled to receive low-and high-frequency switching signal to realize the sounding of sounding Portion (12).

6. a kind of constant temperature and humidity according to claim 1 conserves controller, it is characterized in that：Further include being coupled to judgment means (4) signal judged with reception and exports the time set (13) of timing signal, be coupled to time set (13) to receive timing letter Number and in response to the control device of timing signal (8)；

Switching when in the open state and electric current is less than the electric current of normal work simultaneously for equipment is detected when opening and closing detection device (1) And judgment means (4) judge constant temperature and humidity maintenance controller around nobody when, at this time control device (8) control redundant electrical power to perseverance Constant temperature and humidity maintenance controller is powered.

7. a kind of constant temperature and humidity according to claim 6 conserves controller, it is characterized in that：The time set (13) includes Judgment means (4) are coupled to receive the time adjustment circuit (15) and the coupling that judge signal and output time Regulate signal With receiving time Regulate signal and timing signal is exported to the timing circuit of judgment means (4) in time adjustment circuit (15) (16)。

8. a kind of constant temperature and humidity according to claim 4 conserves controller, it is characterized in that：The light prompt circuit (18) For light emitting diode.