CN213395799U - Automatic start-stop controller and control device for outdoor unit of central air conditioner of water system - Google Patents
Automatic start-stop controller and control device for outdoor unit of central air conditioner of water system Download PDFInfo
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- CN213395799U CN213395799U CN202022059138.2U CN202022059138U CN213395799U CN 213395799 U CN213395799 U CN 213395799U CN 202022059138 U CN202022059138 U CN 202022059138U CN 213395799 U CN213395799 U CN 213395799U
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Abstract
The utility model discloses an automatic controller that opens and shuts down of water system central air conditioning outdoor unit, this automatic controller that opens and shuts down of water system central air conditioning outdoor unit include signal acquisition circuit, control circuit and switch circuit. The signal acquisition circuit acquires the state signal of the indoor fan, processes the state signal and converts the state signal into a level signal. The control circuit outputs a driving signal when receiving the level signal input by the signal acquisition circuit. The switch circuit switches the conducting state when receiving the driving signal so as to switch the working state of the outdoor unit. The utility model discloses technical scheme can be through gathering fan ground state signal, discerns state signal ground through control circuit to output drive signal correspondingly after the discernment, switch with corresponding to off-premises station ground operating condition, thereby realized can not open automatically to water system central air conditioning outdoor unit and stop ground drive control.
Description
Technical Field
The utility model relates to a power technical field especially relates to an automatic controller and controlling means that start and stop of water system central air conditioning off-premises station.
Background
The indoor unit and the outdoor unit of the water system central air conditioner in the current market cannot run synchronously, for example, when the indoor unit stops running, the outdoor unit cannot stop running immediately, and the water system central air conditioner outdoor unit cannot be started and stopped automatically.
The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an automatic controller and controlling means that start and stop of water system central air conditioning outdoor unit aims at solving current water system central air conditioning outdoor unit and can not open the technical problem who stops automatically.
In order to achieve the purpose, the utility model provides an automatic start-stop controller of a water system central air-conditioning outdoor unit, which comprises a signal acquisition circuit, a control circuit and a switch circuit; the signal acquisition circuit, the control circuit and the switch circuit are sequentially connected; wherein
The signal acquisition circuit is used for acquiring a state signal of the indoor fan, processing the state signal and converting the state signal into a level signal;
the control circuit is used for outputting a driving signal when receiving a level signal input by the signal acquisition circuit;
the switching circuit is used for switching a conducting state when receiving the driving signal so as to switch the working state of the outdoor unit.
Preferably, the signal acquisition circuit comprises a signal indication circuit and a plurality of isolation circuits; the isolation circuits are connected with the signal indication circuit and the control circuit.
Preferably, the isolation circuit comprises a voltage reduction rectifying unit and an optical coupling unit, the voltage reduction rectifying unit is connected with the optical coupling unit, and the optical coupling unit is connected with the signal indication circuit.
Preferably, the buck rectifying unit comprises a first resistor and a first diode; the first end of the first resistor receives a state signal of the indoor fan, the second end of the first resistor is connected with the anode of the first diode, and the cathode of the first diode is connected with the optical coupling unit.
Preferably, the optical coupler unit includes a first optical coupler, a first end of an input side of the first optical coupler is connected to the step-down rectifying unit, and a second end of the input side of the first optical coupler is grounded; the first end of the first optical coupler output side is connected with the signal indication circuit, and the second end of the first optical coupler output side is grounded.
Preferably, the signal indicating circuit comprises a first light emitting diode and a second resistor; the anode of the first light emitting diode is connected with the optocoupler unit, the cathode of the first light emitting diode is connected with the first end of the second resistor, and the second end of the second resistor is connected with a power supply.
Preferably, the switch circuit includes a first relay, a first end of the first relay coil side is connected to a power supply, and a second end of the first relay coil side is connected to the control circuit; and the first end and the second end of the control side of the first relay are both connected with the outdoor unit.
Preferably, the control circuit comprises a controller and a driving chip; the controller is connected with the signal acquisition circuit and is also connected with the switch circuit through the driving chip.
Preferably, the controller is a single chip microcomputer.
In order to achieve the above object, the present invention further provides a control device, wherein the control device comprises the above automatic start/stop controller for the outdoor unit of the water system central air conditioner.
The utility model provides an automatic controller that opens and shuts down of water system central air conditioning outdoor unit, this automatic controller that opens and shuts down of water system central air conditioning outdoor unit include signal acquisition circuit, control circuit and switch circuit. The signal acquisition circuit acquires the state signal of the indoor fan, processes the state signal and converts the state signal into a level signal. The control circuit outputs a driving signal when receiving the level signal input by the signal acquisition circuit. The switch circuit switches the conducting state when receiving the driving signal so as to switch the working state of the outdoor unit. The utility model discloses technical scheme can be through gathering fan ground state signal, discerns state signal ground through control circuit to output drive signal correspondingly after the discernment, switch with corresponding to off-premises station ground operating condition, thereby realized can not open automatically to water system central air conditioning outdoor unit and stop ground drive control.
Drawings
Fig. 1 is a schematic block diagram of an embodiment of an automatic start/stop controller for an outdoor unit of a central air conditioner of a water system according to the present invention;
fig. 2 is a schematic circuit structure diagram of an embodiment of the signal acquisition circuit in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
111 | Step-down rectifying |
| 200 | |
112 | |
| 300 | Driving circuit | R1～R2 | First to |
| 110 | Isolation circuit | D1 | |
| 120 | Signal indicating circuit | D2 | First |
| 210 | Controller | U1 | First |
| 220 | Driving chip | VCC | Power supply |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides an automatic controller that opens and shuts down of water system central air conditioning off-premises station.
Referring to fig. 1, the automatic start/stop controller for the outdoor unit of the central air conditioner of the water system of the present invention comprises a signal acquisition circuit 100, a control circuit 200 and a switch circuit 300; the signal acquisition circuit 100, the control circuit 200 and the switch circuit 300 are connected in sequence.
The signal acquisition circuit 100 is configured to acquire a status signal of the indoor fan, process the status signal, and convert the status signal into a level signal. In this embodiment, the acquisition circuit detects a status signal of the coil of the indoor fan, and the status signal may be a power supply voltage in the coil. And when the power supply voltage is lower than a preset threshold value, indicating that the indoor fan is in an opening state.
The control circuit 200 is configured to output a driving signal when receiving a level signal input by the signal acquisition circuit 100. It should be noted that when the indoor fan is turned on, the signal acquisition circuit 100 inputs a low level signal, and when the low level signal is detected by the control circuit 200, the control circuit 200 determines that the indoor fan is turned on, and outputs a corresponding driving signal.
The switch circuit 300 is configured to switch a conducting state when receiving a driving signal, so as to switch an operating state of the outdoor unit. In this embodiment, when the indoor fan is turned on, the control circuit 200 outputs a low-level driving signal, and the switching circuit 300 is turned on at this time, and the outdoor fan is also turned on due to power-on. When the indoor fan is turned off, the control circuit 200 outputs a high-level driving signal, and the switching circuit 300 is turned off, and the outdoor fan is turned on due to power failure.
The utility model provides an automatic controller that opens and shuts down of water system central air conditioning outdoor unit, this automatic controller that opens and shuts down of water system central air conditioning outdoor unit include signal acquisition circuit 100, control circuit 200 and switch circuit 300. The signal acquisition circuit 100 acquires a state signal of the indoor fan, processes the state signal and converts the state signal into a level signal. The control circuit 200 outputs a driving signal when receiving the level signal input from the signal acquisition circuit 100. The switching circuit 300 switches the on state when receiving the driving signal to switch the working state of the outdoor unit. The utility model discloses technical scheme can be through gathering fan ground state signal, discerns state signal ground through control circuit 200 to output drive signal correspondingly after the discernment, switch with corresponding to off-premises station ground operating condition, thereby realized can not open automatically to water system central air conditioning outdoor unit and stop ground drive control.
Specifically, the signal acquisition circuit 100 includes a signal indication circuit 120 and a plurality of isolation circuits 110; the isolation circuits 110 are all connected to the signal indication circuit 120, and the isolation circuits 110 are also connected to the control circuit 200.
It should be noted that, the indication circuit is used for indicating the working state of the indoor fan. In this embodiment, when the indoor fan is turned on, the signal indicating circuit 120 sends out an optical signal indicating that the operation is normal, otherwise, the optical signal is not sent out. The number of the isolation circuits 110 may be determined according to the number of the indoor fans to be detected, and is not limited herein.
Specifically, the isolation circuit 110 includes a step-down rectifying unit 111 and an optical coupling unit 112, the step-down rectifying unit 111 is connected to the optical coupling unit 112, and the optical coupling unit 112 is connected to the signal indication circuit 120. It should be noted that the optical coupling unit 112 is used for isolating strong current and weak current, and the voltage reduction isolation unit is used for processing the voltage of the status signal to convert the status signal voltage to a suitable range, so that the control circuit 200 can receive the voltage range.
Specifically, the buck rectifying unit 111 includes a first resistor R1 and a first diode D1; a first end of the first resistor R1 receives a status signal of an indoor fan, a second end of the first resistor R1 is connected to an anode of the first diode D1, and a cathode of the first diode D1 is connected to the optical coupling unit 112.
Specifically, the optical coupler unit 112 includes a first optical coupler U1, a first end of an input side of the first optical coupler U1 is connected to the step-down rectifying unit 111, and a second end of an input side of the first optical coupler U1 is grounded; the first end of the first optical coupler output side is connected with the signal indication circuit 120, and the second end of the first optical coupler output side is grounded.
The state signal is through first resistance R1 and first diode D1 step-down rectification, and the voltage drops to the scope that first opto-coupler U1 can bear, then is drawn low by the pin level of the singlechip in first opto-coupler U1 output with control circuit 200, and the singlechip internal program detects that the corresponding pin is the low level, judges that indoor fan coil has the opening.
Specifically, the signal indicating circuit 120 includes a first light emitting diode D2 and a second resistor R2; an anode of the first light emitting diode D2 is connected to the optical coupling unit 112, a cathode of the first light emitting diode D2 is connected to a first end of the second resistor R2, and a second end of the second resistor R2 is connected to a power supply. In this embodiment, when the indoor fan normally works, the first light emitting diode D2 emits green light.
Specifically, the switch circuit 300 includes a first relay (not shown) having a first end on the first relay coil side connected to a power supply and a second end on the first relay coil side connected to the control circuit 200; and the first end and the second end of the control side of the first relay are both connected with the outdoor unit.
Specifically, the control circuit 200 includes a controller 210 and a driving chip 220; the controller 210 is connected to the signal acquisition circuit 100, and the controller 210 is further connected to the switch circuit 300 via the driving chip 220. In this embodiment, the controller 210 is a single chip microcomputer.
In order to achieve the above object, the present invention further provides a control device, which comprises the automatic start/stop controller 210 for the outdoor unit of the central air conditioner of the water system.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in the specific application, those skilled in the art can set the solution as required, and the present invention is not limited thereto.
It should be noted that the above-described work flow is only illustrative, and does not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to practical needs, and the present invention is not limited herein.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An automatic start-stop controller for an outdoor unit of a water system central air conditioner is characterized by comprising a signal acquisition circuit, a control circuit and a switch circuit; the signal acquisition circuit, the control circuit and the switch circuit are sequentially connected; wherein
The signal acquisition circuit is used for acquiring a state signal of the indoor fan, processing the state signal and converting the state signal into a level signal;
the control circuit is used for outputting a driving signal when receiving a level signal input by the signal acquisition circuit;
the switching circuit is used for switching a conducting state when receiving the driving signal so as to switch the working state of the outdoor unit.
2. The outdoor unit automatic start-stop controller of water system central air-conditioning of claim 1, characterized in that the signal acquisition circuit comprises a signal indicating circuit and a plurality of isolation circuits; the isolation circuits are connected with the signal indication circuit and the control circuit.
3. The outdoor unit automatic start-stop controller of water system central air-conditioner of claim 2, characterized in that the isolation circuit comprises a voltage reduction rectifying unit and an optical coupling unit, the voltage reduction rectifying unit is connected with the optical coupling unit, the optical coupling unit is connected with the signal indication circuit.
4. The outdoor unit automatic start-stop controller of water system central air-conditioning of claim 3, wherein the said step-down rectification unit includes the first resistance and the first diode; the first end of the first resistor receives a state signal of the indoor fan, the second end of the first resistor is connected with the anode of the first diode, and the cathode of the first diode is connected with the optical coupling unit.
5. The outdoor unit automatic start-stop controller of water system central air-conditioner of claim 3, characterized in that the optical coupling unit comprises a first optical coupler, the first end of the input side of the first optical coupler is connected with the voltage reduction rectifying unit, the second end of the input side of the first optical coupler is grounded; the first end of the first optical coupler output side is connected with the signal indication circuit, and the second end of the first optical coupler output side is grounded.
6. The outdoor unit automatic start-stop controller for central air conditioner of water system as claimed in claim 3, wherein the signal indicating circuit comprises a first light emitting diode and a second resistor; the anode of the first light emitting diode is connected with the optocoupler unit, the cathode of the first light emitting diode is connected with the first end of the second resistor, and the second end of the second resistor is connected with a power supply.
7. The outdoor unit automatic start/stop controller for central air conditioner of water system as claimed in claim 1, wherein said switching circuit comprises a first relay, a first terminal of a coil side of said first relay is connected to a power source, a second terminal of the coil side of said first relay is connected to said control circuit; and the first end and the second end of the control side of the first relay are both connected with the outdoor unit.
8. The outdoor unit automatic start-stop controller of water system central air-conditioning of claim 1, characterized in that the control circuit comprises a controller and a driving chip; the controller is connected with the signal acquisition circuit and is also connected with the switch circuit through the driving chip.
9. The outdoor unit automatic start-stop controller of water system central air-conditioning unit as claimed in claim 8, wherein the controller is a single chip microcomputer.
10. A control device comprising the automatic start/stop controller for the outdoor unit of the central air conditioner of water system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022059138.2U CN213395799U (en) | 2020-09-18 | 2020-09-18 | Automatic start-stop controller and control device for outdoor unit of central air conditioner of water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022059138.2U CN213395799U (en) | 2020-09-18 | 2020-09-18 | Automatic start-stop controller and control device for outdoor unit of central air conditioner of water system |
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| Publication Number | Publication Date |
|---|---|
| CN213395799U true CN213395799U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022059138.2U Active CN213395799U (en) | 2020-09-18 | 2020-09-18 | Automatic start-stop controller and control device for outdoor unit of central air conditioner of water system |
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|---|---|
| CN (1) | CN213395799U (en) |
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- 2020-09-18 CN CN202022059138.2U patent/CN213395799U/en active Active
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