Control system for starting and stopping condensate fan

Abstract

The utility model relates to the technical field of on-off control systems, in particular to a control system for on-off of a condensate fan, which saves installation space, improves installation efficiency, reduces power consumption of a switching power supply, improves energy-saving effect and improves use reliability. Comprising a power source, a compressor and a condensate fan, and the compressor and the condensate fan communicate with the power source; the air conditioner further comprises a temperature controller, a switching power supply and an AC change-over switch, the temperature controller and the switching power supply are both communicated with the power supply, the switching power supply is communicated with the condensation fan, the AC change-over switch is arranged on a circuit between the switching power supply and the condensation fan in a communicated mode, a control port of the AC change-over switch inputs a 110V or 220V signal and is communicated with a control end of the temperature controller, and the control end of the temperature controller is communicated with the power supply. The compressor communicates with the switching power supply.

Description

Technical Field

[0001] The utility model relates to the technical field of start-stop control systems, in particular to a control system for starting and stopping a condensing fan. Background Art

[0002] At present, in the existing technical solutions of the start-stop control system of the condensing fan, the start and stop of the condensing fan are synchronized with those of the compressor. When a 12V fan is used for the condensing fan, a separate switching power supply is needed to convert the voltage to 12V.

[0003] Since a switching power supply will be added when using a DC 12V condensing fan, this increases the cost and energy consumption of the product, increases the probability of the switching power supply failure, occupies space, and affects the efficiency. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a control system for starting and stopping a condensing fan, which saves installation space, improves installation efficiency, reduces the power consumption of the switching power supply, improves the energy-saving effect, and improves the reliability of use.

[0005] A control system for starting and stopping a condensing fan of the utility model includes a power supply, a compressor and a condensing fan. The compressor and the condensing fan are both connected to the power supply; it further includes a thermostat, a switching power supply and an AC changeover switch. The thermostat and the switching power supply are both connected to the power supply. The switching power supply is connected to the condensing fan. The AC changeover switch is connected to the circuit between the switching power supply and the condensing fan, and the control port of the AC changeover switch inputs a signal of 110V or 220V and is connected to the control end of the thermostat. The compressor is connected to the switching power supply; after the control port of the AC changeover switch inputs a signal of 110V or 220V and is connected to the control end of the thermostat, when the voltage at the control port of the AC changeover switch disappears, the weak-current circuit of the evaporation fan is disconnected. By connecting the condensing fan to the switching power supply and making one end of the weak-current circuit of the evaporation fan connected to the AC changeover switch, when the thermostat is turned on, the AC changeover switch is turned on, and at this time the condensing fan is powered on, so that the start and stop of the condensing fan are synchronized with those of the compressor. Since the AC changeover switch is small in size, it saves installation space and improves installation efficiency. By using the AC changeover switch, the power consumption of the switching power supply is reduced, the energy-saving effect is improved, and the reliability of use is improved.

[0006] Preferably, it further includes a running capacitor and a starter. The starter is connected to the compressor, the running capacitor is connected to the starter, and the running capacitor is connected to the AC changeover switch; when the AC changeover switch controls the circuit of the compressor, by setting the starter, the damage to the compressor caused by excessive current or voltage is reduced, and the circuit safety is improved.

[0007] Preferably, it further includes a temperature sensing probe, which is connected to the thermostat; the temperature of the thermostat is sensed by the temperature sensing probe, thereby improving the temperature detection effect of the thermostat and enhancing the operating safety of the thermostat.

[0008] Preferably, it further includes a thermal protection, which is connected between the AC conversion switch and the compressor; the overload protection effect of the circuit is improved, and the circuit safety is enhanced.

[0009] Preferably, it further includes an LED lamp, which is connected between the switching power supply and the condensing fan; when the circuit between the switching power supply and the condensing fan is turned on, the LED lamp lights up, improving the convenience of circuit connection indication.

[0010] Preferably, it further includes an evaporation fan, which is connected to the AC conversion switch and the switching power supply; by providing the evaporation fan, the convenience of using the condensing fan is improved.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: After a signal of 110V or 220V is input to the control port of the AC conversion switch and then connected to the control end of the thermostat 8, when the voltage at the control port of the AC conversion switch disappears, the weak current circuit of the evaporation fan is disconnected. By connecting the condensing fan to the switching power supply and making one end of the weak current circuit of the evaporation fan connected to the AC conversion switch, when the thermostat is turned on, the AC conversion switch is turned on, and at this time the condensing fan is powered on, so that the start and stop of the condensing fan are synchronized with the start and stop of the compressor. Since the AC conversion switch is small in size, the installation space is saved and the installation efficiency is improved. By using the AC conversion switch, the power consumption of the switching power supply is reduced, the energy-saving effect is improved, and the use reliability is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an isometric structural schematic diagram of the present utility model;

[0013] Figure 2 is an isometric partial structural schematic diagram of the connection between the power supply and the thermostat, etc.;

[0014] Figure 3 is an isometric partial structural schematic diagram of the connection between the thermal protection and the compressor, etc.;

[0015] Figure 4 is an isometric partial structural schematic diagram of the connection between the thermostat and the temperature sensing probe, etc.

[0016] Reference numerals in the drawings: 1, power supply; 2, thermal protection; 3, running capacitor; 4, temperature sensing probe; 5, LED lamp; 6, compressor; 7, starter; 8, thermostat; 9, switching power supply; 10, AC conversion switch; 11, condensing fan; 12, evaporation fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0018] Embodiment 1

[0019] As Figures 1 to 4 shown, a control system for starting and stopping a condensing fan of the present utility model includes a power supply 1, a compressor 6, and a condensing fan 11. The compressor 6 and the condensing fan 11 are both connected to the power supply 1; it further includes a temperature controller 8, a switching power supply 9, and an AC conversion switch 10. The temperature controller 8 and the switching power supply 9 are both connected to the power supply 1. The switching power supply 9 is connected to the condensing fan 11. The AC conversion switch 10 is connected to the circuit between the switching power supply 9 and the condensing fan 11, and a signal of 110V or 220V is input to the control port of the AC conversion switch 10 and is connected to the control end of the temperature controller 8. The compressor 6 is connected to the switching power supply 9;

[0020] As Figure 1 shown, it further includes a running capacitor 3 and a starter 7. The starter 7 is connected to the compressor 6. The running capacitor 3 is connected to the starter 7, and the running capacitor 3 is connected to the AC conversion switch 10;

[0021] In this embodiment, after a signal of 110V or 220V is input to the control port of the AC conversion switch 10 and is connected to the control end of the temperature controller 8, when the voltage at the control port of the AC conversion switch 10 disappears, the weak current circuit of the evaporation fan 12 is disconnected. By connecting the condensing fan 11 to the switching power supply 9 and making one end of the weak current circuit of the evaporation fan 12 connected to the AC conversion switch 10, when the temperature controller 8 is turned on, the AC conversion switch 10 is turned on. At this time, the condensing fan 11 is powered on, so that the starting and stopping of the condensing fan 11 are synchronized with the starting and stopping of the compressor 6. Since the AC conversion switch 10 is small in size, the installation space is saved and the installation efficiency is improved. By using the AC conversion switch 10, the power consumption of the switching power supply 9 is reduced, the energy-saving effect is improved, and the use reliability is improved.

[0022] Embodiment 2

[0023] Based on Embodiment 1, as Figure 1 shown, it further includes a temperature sensing probe 4, and the temperature sensing probe 4 is connected to the temperature controller 8;

[0024] As Figure 1 shown, it further includes a thermal protection 2, and the thermal protection 2 is connected between the AC conversion switch 10 and the compressor 6;

[0025] As Figure 2As shown, it further includes an LED lamp 5, and the LED lamp 5 is connected and arranged between the switching power supply 9 and the condensing fan 11;

[0026] As Figure 2 shown, it further includes an evaporation fan 12, and the evaporation fan 12 is connected to the AC conversion switch 10 and the switching power supply 9;

[0027] In this embodiment, when the AC conversion switch 10 controls the circuit of the compressor 6, by setting a starter 7, it reduces the damage to the compressor 6 caused by excessive current or voltage, improves the circuit safety, and senses the operating temperature of the thermostat 8 through the temperature sensing probe 4, thereby improving the temperature detection effect of the thermostat 8 and the operating safety of the thermostat 8.

[0028] For a control system for starting and stopping a condensing fan of the present utility model, when it works, after inputting a signal of 110V or 220V to the control port of the AC conversion switch 10, it is connected to the control end of the thermostat 8. When the voltage at the control port of the AC conversion switch 10 disappears, the weak current circuit of the evaporation fan 12 is disconnected. By connecting the condensing fan 11 to the switching power supply 9 and making one end of the weak current circuit of the evaporation fan 12 connected to the AC conversion switch 10, when the thermostat 8 is turned on, the AC conversion switch 10 is turned on, and at this time the condensing fan 11 is powered on, so that the starting and stopping of the condensing fan 11 are synchronized with the starting and stopping of the compressor 6.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A control system for starting and stopping a condensing fan, comprising a power supply (1), a compressor (6) and a condensing fan (11), wherein the compressor (6) and the condensing fan (11) are both connected to the power supply (1); characterized in that, It further includes a thermostat (8), a switching power supply (9) and an AC changeover switch (10). The thermostat (8) and the switching power supply (9) are both connected to the power supply (1). The switching power supply (9) is connected to the condensing fan (11). The AC changeover switch (10) is connected to the circuit between the switching power supply (9) and the condensing fan (11), and a 220V signal is input to the control port of the AC changeover switch (10) and is connected to the control end of the thermostat (8). The compressor (6) is connected to the switching power supply (9).

2. The control system for starting and stopping a condensing fan according to claim 1, characterized in that, It further includes a running capacitor (3) and a starter (7). The starter (7) is connected to the compressor (6). The running capacitor (3) is connected to the starter (7), and the running capacitor (3) is connected to the AC changeover switch (10).

3. The control system for starting and stopping a condensing fan according to claim 1, characterized in that, It further includes a temperature sensing probe (4), and the temperature sensing probe (4) is connected to the thermostat (8).

4. The control system for starting and stopping a condensing fan according to claim 1, wherein It further includes a thermal protection (2), and the thermal protection (2) is connected between the AC changeover switch (10) and the compressor (6).

5. The control system for starting and stopping a condensing fan according to claim 1, characterized in that, It further includes an LED lamp (5), and the LED lamp (5) is connected between the switching power supply (9) and the condensing fan (11).

6. The control system for starting and stopping a condensing fan according to claim 1, wherein, It further includes an evaporation fan (12), and the evaporation fan (12) is connected to the AC changeover switch (10) and the switching power supply (9).

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