Fan coil control module and three-speed / direct-current brushless fan coil control assembly

Abstract

The utility model provides a fan coil control module and a three-speed / direct-current brushless fan coil control assembly. The fan coil control module comprises a shell, a circuit board, a power supply terminal, a first communication terminal, a second communication terminal, a valve opening terminal, a valve closing terminal, a low-speed terminal, a medium-speed terminal, a high-speed terminal and a direct-current brushless wind disc control terminal; the circuit board is fixed in the shell; each terminal penetrates through the shell and is connected with the circuit board; the power terminal is connected with a power supply; the first communication terminal and the second communication terminal are respectively connected with the output end and the input end of the temperature controller; the valve opening terminal and the valve closing terminal are respectively connected with an opening terminal and a closing terminal which are used for controlling a water inlet pipe of the fan coil to be connected or disconnected; the low-speed terminal, the medium-speed terminal and the high-speed terminal are respectively connected with a low-gear terminal, a medium-gear terminal and a high-gear terminal which are used for controlling low-speed operation, medium-speed operation and high-speed operation of the three-speed fan coil; and the direct-current brushless fan coil control terminal is connected with an operation terminal for controlling the air speed of the direct-current brushless fan coil.

Description

Technical Field

[0001] This utility model relates to the field of fan coil unit technology, specifically to a fan coil unit control module and a three-speed / DC brushless fan coil unit control assembly. Background Technology

[0002] A fan coil unit, or simply fan coil unit, is one of the terminal devices in an air conditioning system, consisting of a small fan, an electric motor, and a coil (air heat exchanger). When chilled or hot water flows through the coil, it exchanges heat with the outside air, thus cooling, dehumidifying, or heating the air to regulate indoor air parameters. Currently, fan coil units are directly controlled by thermostats. The thermostat combines manually set temperature and humidity data with data monitored by temperature and humidity sensors, outputting control commands to the fan coil unit. This controls whether the inlet pipe connected to the coil is open to inject heat exchange medium and also controls the output power of the fan coil unit. Therefore, a direct wiring connection is required between the fan coil unit and the thermostat. However, this direct wiring results in numerous wires, and while placing the thermostat within the operator's line of sight for easy operation, excessive exposed wiring negatively impacts the overall visual appeal of the room. Utility Model Content

[0003] In view of this, the present invention provides a fan coil control module and a three-speed / DC brushless fan coil control assembly to solve the above-mentioned technical problems.

[0004] The fan coil control module provided by this utility model includes a housing, a circuit board, power terminals, a first communication terminal, a second communication terminal, a valve open terminal, a valve close terminal, a low-speed terminal, a medium-speed terminal, a high-speed terminal, and a DC brushless fan coil control terminal.

[0005] The outer casing has a receiving cavity, and the circuit board is fixed inside the receiving cavity;

[0006] The power terminal, the first communication terminal, the second communication terminal, the valve open terminal, the valve close terminal, the low-speed terminal, the medium-speed terminal, the high-speed terminal, and the DC brushless fan control terminal all pass through the housing and are connected to the circuit board.

[0007] The power terminal is used to connect to a power source;

[0008] The first communication terminal is used to connect to the output terminal of the temperature controller;

[0009] The second communication terminal is used to connect to the input terminal of the temperature controller;

[0010] The valve opening terminal is used to connect to the opening terminal that controls the water inlet pipe of the fan coil unit.

[0011] The valve closing terminal is used to connect to the closing terminal that controls the disconnection of the water inlet pipe of the fan coil unit;

[0012] The low-speed terminal is used to connect to the low-speed terminal that controls the low-speed operation of the three-speed fan coil unit.

[0013] The medium-speed terminal is used to connect to the medium-range terminal that controls the medium-speed operation of the three-speed fan coil unit;

[0014] The high-speed terminal is used to connect to the high-grade terminal that controls the high-speed operation of the three-speed fan coil unit;

[0015] The DC brushless fan coil control terminal is used to connect to the operating terminal that controls the airflow speed of the DC brushless fan coil unit.

[0016] Optionally, the housing includes a detachably connected base plate and a cover plate, the base plate and the cover plate enclosing the receiving cavity.

[0017] Optionally, a reinforcing plate is fixed to the side surface of the base plate facing away from the cover plate.

[0018] Optionally, the reinforcing plate has a notch.

[0019] Optionally, the base plate has multiple mounting holes circumferentially through it, and multiple fasteners are inserted into the multiple mounting holes respectively.

[0020] This utility model also provides a three-speed fan coil unit control assembly, including a first temperature controller, a first temperature and humidity sensor, and a three-speed fan coil unit. The output terminal of the first temperature and humidity sensor is communicatively connected to the input terminal of the first temperature controller. It also includes the fan coil unit control module described in any of the above-mentioned embodiments.

[0021] The output terminal of the first temperature controller is connected to the first communication terminal of the fan coil control module;

[0022] The input terminal of the first temperature controller is connected to the second communication terminal of the fan coil control module;

[0023] The power supply terminal of the first temperature controller is connected to the power supply terminal of the fan coil control module;

[0024] The valve opening terminal of the fan coil control module is connected to the opening terminal of the three-speed fan coil unit.

[0025] The valve-closing terminal of the fan coil control module is connected to the shut-off terminal of the three-speed fan coil unit.

[0026] The low-speed terminal of the fan coil control module is connected to the low-speed terminal of the three-speed fan coil unit.

[0027] The medium-speed terminal of the fan coil control module is connected to the medium-range terminal of the three-speed fan coil unit.

[0028] The high-speed terminal of the fan coil control module is connected to the high-speed terminal of the three-speed fan coil unit.

[0029] Optionally, the three-speed fan coil unit control assembly further includes:

[0030] The first water immersion sensor is installed in the water collection tray of the three-speed fan coil unit;

[0031] The first alarm device has its input terminal connected in communication with the output terminal of the first water immersion sensor.

[0032] Optionally, the three-speed fan coil unit control assembly further includes:

[0033] The first vibration sensor is installed on the fan of the three-speed fan coil unit, and the output terminal of the first vibration sensor is communicatively connected to the input terminal of the first alarm.

[0034] This utility model also provides a DC brushless fan coil unit control assembly, including a second temperature controller, a second temperature and humidity sensor, and a DC brushless fan coil unit. The output terminal of the second temperature and humidity sensor is communicatively connected to the input terminal of the second temperature controller. It also includes the fan coil unit control module described in any of the above-mentioned embodiments.

[0035] The output terminal of the second temperature controller is connected to the first communication terminal of the fan coil control module;

[0036] The input terminal of the second temperature controller is connected to the second communication terminal of the fan coil control module;

[0037] The power supply terminal of the second temperature controller is connected to the power supply terminal of the fan coil control module;

[0038] The valve opening terminal of the fan coil control module is connected to the opening terminal of the DC brushless fan coil unit.

[0039] The valve-off terminal of the fan coil control module is connected to the shut-off terminal of the DC brushless fan coil unit.

[0040] The DC brushless fan coil control terminal of the fan coil control module is connected to the operating terminal of the DC brushless fan coil unit.

[0041] Optionally, the DC brushless fan coil control assembly further includes:

[0042] The second water immersion sensor is installed in the water collection tray of the DC brushless fan coil unit.

[0043] The second vibration sensor is installed on the fan of the DC brushless fan coil unit;

[0044] The second alarm device has its input terminal communicatively connected to the output terminal of the second water immersion sensor and the output terminal of the second vibration sensor.

[0045] The technical solution provided by this utility model has at least the following beneficial effects compared with the prior art:

[0046] Using this invention, the thermostat outputs a control signal to the fan coil unit control module. The fan coil unit control module further controls the operation of the fan coil unit based on the control signal. The thermostat does not need to be connected to the fan coil unit by wiring. Without affecting the normal operation of the fan coil unit, the thermostat only needs to be connected to the first and second communication terminals of the fan coil unit control module, as well as the positive and negative terminals of the power supply. That is, only four wires need to be connected, which reduces the number of wires connected to the thermostat and avoids excessive exposed wires affecting the overall aesthetics of the room. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of a fan coil control module according to one embodiment of the present invention;

[0048] Figure 2 for Figure 1 The diagram shows the 3D structure of the fan coil unit control module.

[0049] Figure 3 for Figure 1 Another perspective 3D view of the fan coil unit control module shown;

[0050] Figure 4 for Figure 1 Another perspective 3D structural diagram of the fan coil unit control module shown;

[0051] Figure 5 for Figure 1 The diagram shows the connection between the fan coil control module, the thermostat, and the three-speed fan coil unit.

[0052] Figure label:

[0053] 100: Fan coil unit control module; 1: Housing; 101: Base plate; 102: Cover plate; 2: Power terminal; 3: First communication terminal; 4: Second communication terminal; 5: Valve open terminal; 6: Valve close terminal; 7: Low speed terminal; 8: Medium speed terminal; 9: High speed terminal; 10: DC brushless fan coil control terminal; 11: Reinforcing plate; 12: Notch; 13: Mounting hole; 14: First thermostat; 15: Three-speed fan coil unit; 16: Wiring. Detailed Implementation

[0054] The embodiments of this utility model will be further described below with reference to the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description of this utility model. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0055] Figure 1 This is a schematic diagram of a fan coil control module according to one embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the 3D structure of the fan coil unit control module. Figure 3 for Figure 1 Another perspective 3D view of the fan coil unit control module shown; Figure 4 for Figure 1 Another perspective 3D structural diagram of the fan coil unit control module shown; Figure 5 for Figure 1 The diagram shows the connection between the fan coil control module, the thermostat, and the three-speed fan coil unit.

[0056] like Figures 1-5As shown, the fan coil unit control module 100 includes a housing 1, a circuit board (not shown), a power terminal 2, a first communication terminal 3, a second communication terminal 4, a valve open terminal 5, a valve close terminal 6, a low-speed terminal 7, a medium-speed terminal 8, a high-speed terminal 9, and a DC brushless fan coil control terminal 10. A receiving cavity is provided inside the housing 1, and the circuit board is fixed inside the receiving cavity. The power terminal 2, the first communication terminal 3, the second communication terminal 4, the valve open terminal 5, the valve close terminal 6, the low-speed terminal 7, the medium-speed terminal 8, the high-speed terminal 9, and the DC brushless fan coil control terminal 10 respectively penetrate the housing 1 and are connected to the circuit board. The power terminal 2 is used to connect to the power supply. The first communication terminal... Terminal 3 is used to connect to the output terminal of the thermostat; the second communication terminal 4 is used to connect to the input terminal of the thermostat; the valve open terminal 5 is used to connect to the open terminal that controls the water inlet pipe of the fan coil unit to be connected; the valve close terminal 6 is used to connect to the close terminal that controls the water inlet pipe of the fan coil unit to be disconnected; the low speed terminal 7 is used to connect to the low-speed terminal that controls the low-speed operation of the three-speed fan coil unit 15; the medium speed terminal 8 is used to connect to the medium-speed terminal that controls the medium-speed operation of the three-speed fan coil unit 15; the high speed terminal 9 is used to connect to the high-speed terminal that controls the high-speed operation of the three-speed fan coil unit 15; and the DC brushless fan coil control terminal 10 is used to connect to the operating terminal that controls the fan speed of the DC brushless fan coil unit.

[0057] Different types of fan coil units are equipped with valves on their water inlet pipes. Each fan coil unit has an open terminal and a close terminal. When the circuit connected to the open terminal is open, the valve opens, allowing the water inlet pipe to flow. When the circuit connected to the close terminal is open, the valve closes, disconnecting the water inlet pipe. The three-speed fan coil unit 15 has low, medium, and high-speed terminals, allowing control of the fan speed at these three levels. When the circuit connected to the low-speed terminal is open, the three-speed fan coil unit 15 operates at low speed; when the circuit connected to the medium-speed terminal is open, it operates at medium speed; and when the circuit connected to the high-speed terminal is open, it operates at high speed. The DC brushless fan coil unit has a running terminal. When the circuit connected to the running terminal is open, the transmitted control signal controls the motor speed, thereby controlling the fan speed.

[0058] When using the fan coil unit control module 100, the power terminal 2 is connected to the power supply via line 16. The power terminal of the thermostat is connected to the power terminal 2 of the fan coil unit control module 100 via line 16 to indirectly connect to the power supply. The first communication terminal 3 is connected to the output terminal of the thermostat via line 16 to receive the control signal transmitted by the thermostat. The second communication terminal 4 is connected to the input terminal of the thermostat via line 16 to transmit the signal corresponding to whether the fan coil unit has completed the thermostat's command action back to the thermostat. The fan coil unit control module 100 can be placed in a concealed location in the room, without being exposed and affecting the aesthetics.

[0059] If the thermostat controls the three-speed fan coil unit 15, connect the valve open terminal 5 to the open terminal of the three-speed fan coil unit 15 via line 16, connect the valve close terminal 6 to the close terminal of the three-speed fan coil unit 15 via line 16, and connect the low-speed terminal 7, medium-speed terminal 8, and high-speed terminal 9 to the low-range, medium-range, and high-range terminals of the three-speed fan coil unit 15 respectively via line 16. When the three-speed fan coil unit 15 needs to be operated, start the power supply, and the thermostat outputs a start signal to the fan coil control module 100 via the first communication terminal 3. When the fan coil control module 100 receives the start signal, it connects the circuit where the valve open terminal 5 and the open terminal of the three-speed fan coil unit 15 are connected, thereby opening the valve on the water inlet pipe of the three-speed fan coil unit 15, allowing the heat exchange medium to enter the coil and exchange heat with the air. Based on the different temperature and humidity data monitored by the temperature and humidity sensor, when the three-speed fan coil unit 15 needs to operate at different fan speeds, the thermostat outputs the corresponding fan speed signal to the fan coil control module 100 through the first communication terminal 3. This causes the circuit containing the low-speed terminal 7 and the low-range terminal, the circuit containing the medium-speed terminal 8 and the medium-range terminal, or the circuit containing the high-speed terminal 9 and the high-range terminal to be connected accordingly, thereby controlling the three-speed fan coil unit 15 to operate at low, medium, or high fan speeds respectively. Simultaneously, the fan coil control module 100 transmits the operating signal indicating the operating status of the three-speed fan coil unit 15 and the signal indicating whether the valve on the water inlet pipe is open to the thermostat through the second communication terminal 4. When the three-speed fan coil unit 15 needs to be shut down, the thermostat outputs a shutdown signal to the fan coil unit control module 100 through the first communication terminal 3. When the fan coil unit control module 100 receives the shutdown signal, the circuit where the control valve closing terminal 6 and the closing terminal of the three-speed fan coil unit 15 are located is connected, thereby closing the valve on the water inlet pipe of the three-speed fan coil unit 15, preventing the heat exchange medium from entering the coil to exchange heat with the air, and then turning off the power.

[0060] If the thermostat controls a brushless DC fan coil unit, connect valve open terminal 5 to the open terminal of the brushless DC fan coil unit via line 16, connect valve close terminal 6 to the close terminal of the brushless DC fan coil unit via line 16, and connect the brushless DC fan coil control terminal 10 of the fan coil control module 100 to the running terminal of the brushless DC fan coil unit. When the brushless DC fan coil unit needs to be operated, start the power supply, and the thermostat outputs a start signal to the fan coil control module 100 via the first communication terminal 3. Upon receiving the start signal, the fan coil control module 100 connects the circuit where valve open terminal 5 and the open terminal of the brushless DC fan coil unit are connected, thereby opening the valve on the water inlet pipe of the brushless DC fan coil unit, allowing the heat exchange medium to enter the coil and exchange heat with the air. Based on the different temperature and humidity data monitored by the temperature and humidity sensor, when the brushless DC fan coil unit needs to operate at different fan speeds, the thermostat outputs the corresponding fan speed signal to the fan coil control module 100 through the first communication terminal 3. The brushless DC fan coil control terminal 10 outputs the fan speed signal to the operating terminal of the brushless DC fan coil unit through line 16, thereby controlling the brushless DC fan coil unit to operate at the required fan speed. At the same time, the fan coil control module 100 transmits the operating signal indicating the operating status of the brushless DC fan coil unit and the signal indicating whether the valve on the water inlet pipe is open to the thermostat through the second communication terminal 4. When it is necessary to shut down the brushless DC fan coil unit, the thermostat outputs a shutdown signal to the fan coil control module 100 through the first communication terminal 3. Upon receiving the shutdown signal, the fan coil control module 100 connects the circuit where the control valve closing terminal 6 and the shutdown terminal of the brushless DC fan coil unit are located, thereby closing the valve on the water inlet pipe of the brushless DC fan coil unit, preventing the heat exchange medium from entering the coil and exchanging heat with the air, and then shutting off the power.

[0061] Using this utility model, the thermostat outputs a control signal to the fan coil control module 100. The fan coil control module 100 further controls the operation of the fan coil unit according to the control signal. The thermostat does not need to be connected to the fan coil unit by wiring. Without affecting the normal operation of the fan coil unit, the thermostat only needs to be connected to the first communication terminal 3 and the second communication terminal 4 of the fan coil control module 100, as well as the positive and negative terminals of the power supply. That is, only four wires need to be connected, which reduces the number of wires connected to the thermostat and avoids excessive exposed wires affecting the overall aesthetics of the room.

[0062] like Figures 1-3As shown, in this embodiment, the first communication terminal 3, the second communication terminal 4, and the DC brushless fan coil control terminal 10 are all arranged on the upper part of the housing 1. Both the first communication terminal 3 and the second communication terminal 4 are RS485 communication interfaces. The power terminal 2, valve open terminal 5, valve close terminal 6, low-speed terminal 7, medium-speed terminal 8, and high-speed terminal 9 are all arranged on the lower part of the housing 1. There are two power terminals 2, which are respectively connected to the positive and negative terminals of the 220V power supply and the positive and negative power terminals of the thermostat. There are two DC brushless fan coil control terminals 10, one a GND control terminal and the other a 0-10V control terminal, which are respectively connected to the operating terminals of the DC brushless fan coil unit. Different voltages correspond to different fan speed signals to the DC brushless fan coil unit, thereby controlling the DC brushless fan coil unit to operate at different fan speeds.

[0063] Depending on the actual application, the specific arrangement of each terminal on the housing 1 can be adjusted, or other connection terminals can be added to transmit other control commands.

[0064] Optionally, the housing 1 includes a detachably connected base plate 101 and a cover plate 102, which enclose a receiving cavity. This arrangement makes it easy to disassemble the housing 1 and facilitates the installation of the circuit board.

[0065] like Figures 2-4 As shown, in this embodiment, the base plate 101 is a rectangular thin plate, and the cover plate 102 is a hollow rectangular prism with an opening on one side facing the base plate 101. After the two are connected, a cavity for mounting the circuit board is formed inside. In this embodiment, the base plate 101 and the cover plate 102 are detachably connected by bolts. Depending on the actual situation, other detachable connection methods can also be used.

[0066] Optionally, a reinforcing plate 11 is fixed to the surface of the base plate 101 facing away from the cover plate 102. The reinforcing plate 11 is provided to improve the overall strength of the outer shell 1 and prevent deformation upon impact.

[0067] like Figure 4 As shown, in this embodiment, reinforcing plates 11 are fixed around the perimeter of the side surface of the base plate 101 facing away from the cover plate 102, and the reinforcing plates 11 are connected end to end. Depending on the actual application, the specific position of the reinforcing plates 11 on the base plate 101, as well as the specific shape and size of the reinforcing plates 11, can be adjusted.

[0068] Optionally, a notch 12 is provided on the reinforcing plate 11. The notch 12 is provided to meet the molding process of the plastic reinforcing plate 11, and also saves materials and reduces the overall weight.

[0069] In this embodiment, located Figure 4 The middle positions of the reinforcing plates 11 on the left and right sides are respectively provided with notches 12.

[0070] Optionally, the base plate 101 has multiple mounting holes 13 circumferentially through it, and multiple fasteners are inserted into the multiple mounting holes 13 respectively. By pre-setting mounting holes 13 on the base plate 101, when the housing 1 is installed in the required position, the cooperation between the fasteners and the mounting holes 13 can be used to achieve quick installation of the housing 1.

[0071] like Figure 1 As shown, in this embodiment, a mounting hole 13 is provided at each of the four corners of the cuboid base plate 101, and bolts can be used as fasteners.

[0072] like Figure 5 As shown, this utility model also provides a three-speed fan coil unit control assembly, including a first temperature controller 14, a first temperature and humidity sensor (not shown), and a three-speed fan coil unit 15. The output terminal of the first temperature and humidity sensor is communicatively connected to the input terminal of the first temperature controller 14. It also includes the fan coil unit control module 100 described in any of the above embodiments, wherein the output terminal of the first temperature controller 14 is connected to the first communication terminal 3 of the fan coil unit control module 100; the input terminal of the first temperature controller 14 is connected to the second communication terminal 4 of the fan coil unit control module 100; and the power supply of the first temperature controller 14... The power supply terminal 2 of the fan coil control module 100 is connected to the power supply terminal 2 of the fan coil control module 100; the valve open terminal 5 of the fan coil control module 100 is connected to the open terminal of the three-speed fan coil unit 15; the valve close terminal 6 of the fan coil control module 100 is connected to the close terminal of the three-speed fan coil unit 15; the low speed terminal 7 of the fan coil control module 100 is connected to the low speed terminal of the three-speed fan coil unit 15; the medium speed terminal 8 of the fan coil control module 100 is connected to the medium speed terminal of the three-speed fan coil unit 15; and the high speed terminal 9 of the fan coil control module 100 is connected to the high speed terminal of the three-speed fan coil unit 15.

[0073] The three-speed fan coil unit control assembly of this utility model uses a thermostat to output a control signal to the fan coil unit control module 100. The fan coil unit control module 100 further controls the operation of the three-speed fan coil unit 15 according to the control signal. The thermostat does not need to be connected to the three-speed fan coil unit 15 by wiring. Without affecting the normal operation of the three-speed fan coil unit 15, the thermostat only needs to be connected to the first communication terminal 3 and the second communication terminal 4 of the fan coil unit control module 100, as well as the positive and negative terminals of the power supply. That is, only four lines need to be connected, which reduces the number of lines connected to the thermostat and avoids excessive exposed lines affecting the overall aesthetics of the room.

[0074] Optionally, the three-speed fan coil unit control assembly also includes a first water immersion sensor (not shown) and a first alarm (not shown). The first water immersion sensor is located in the water collection pan of the three-speed fan coil unit 15; the input terminal of the first alarm is communicatively connected to the output terminal of the first water immersion sensor.

[0075] A water collection tray is installed below the three-speed fan coil unit 15 to collect condensate after heat exchange, and a drain outlet is provided on the side of the tray for drainage. A first water immersion sensor is placed inside the water collection tray, at a certain height above the drain outlet, to monitor the water level in real time. When the water level rises to the position of the first water immersion sensor, it indicates that the water level in the collection tray is too high, and the drain outlet alone cannot drain the water in time. At this time, the first water immersion sensor outputs an alarm signal to the first alarm device, which then sounds an alarm to prompt the operator to clean the area promptly. The water immersion sensor is a mature existing technology, and its specific structure and working principle will not be described in detail here. Alternatively, a water level sensor can be used instead of the water immersion sensor to monitor the water level in real time. When the water level exceeds the set water level, the first alarm device is triggered.

[0076] Optionally, the control assembly of the three-speed fan coil unit 15 also includes a first vibration sensor (not shown), which is mounted on the fan of the three-speed fan coil unit 15, and the output of the first vibration sensor is communicatively connected to the input of the first alarm.

[0077] The first vibration sensor monitors the vibration data of the fan in real time. When the monitored vibration data exceeds the set vibration data, it indicates that the fan is working abnormally. At this time, the first vibration sensor outputs an alarm signal to the first alarm device, which then issues an alarm to prompt the operator to perform maintenance and avoid serious malfunctions.

[0078] This utility model also provides a DC brushless fan coil unit control assembly, including a second temperature controller (not shown), a second temperature and humidity sensor (not shown), and a DC brushless fan coil unit (not shown). The output terminal of the second temperature and humidity sensor is communicatively connected to the input terminal of the second temperature controller. It also includes the fan coil unit control module 100 described in any of the above embodiments. The output terminal of the second temperature controller is connected to the first communication terminal 3 of the fan coil unit control module 100; the input terminal of the second temperature controller is connected to the second communication terminal 4 of the fan coil unit control module 100; the power supply terminal of the second temperature controller is connected to the power supply terminal 2 of the fan coil unit control module 100; the valve opening terminal 5 of the fan coil unit control module 100 is connected to the opening terminal of the DC brushless fan coil unit; the valve closing terminal 6 of the fan coil unit control module 100 is connected to the closing terminal of the DC brushless fan coil unit; and the DC brushless fan coil control terminal 10 of the fan coil unit control module 100 is connected to the running terminal of the DC brushless fan coil unit.

[0079] The DC brushless fan coil unit control assembly of this utility model outputs a control signal to the fan coil unit control module 100. The fan coil unit control module 100 further controls the operation of the DC brushless fan coil unit according to the control signal. The thermostat does not need to be connected to the DC brushless fan coil unit. Without affecting the normal operation of the DC brushless fan coil unit, the thermostat only needs to be connected to the first communication terminal 3 and the second communication terminal 4 of the fan coil unit control module 100, as well as the positive and negative terminals of the power supply. That is, only four lines need to be connected, which reduces the number of lines connected to the thermostat and avoids too many exposed lines 16 affecting the overall aesthetics of the room.

[0080] Optionally, the DC brushless fan coil unit control assembly also includes a second water immersion sensor (not shown), a second vibration sensor (not shown), and a second alarm (not shown). The second water immersion sensor is located in the water collection pan of the DC brushless fan coil unit; the second vibration sensor is mounted on the fan of the DC brushless fan coil unit; the input terminal of the second alarm is communicatively connected to the output terminals of the second water immersion sensor and the second vibration sensor.

[0081] Similarly, a condensate collection tray is also installed below the DC brushless fan coil unit. The second water immersion sensor is placed inside the collection tray at a certain height above the drain outlet to monitor the water level in real time. When the water level is detected to rise to the position of the second water immersion sensor, it indicates that the water level in the collection tray is too high. At this time, the second water immersion sensor outputs an alarm signal to the second alarm device, which then sounds an alarm to remind the operator to clean the tray in time.

[0082] The second vibration sensor monitors the vibration data of the DC brushless fan coil unit in real time. When the monitored vibration data exceeds the set vibration data, it indicates that the fan is working abnormally. At this time, the second vibration sensor outputs an alarm signal to the second alarm device, which then issues an alarm to prompt the operator to perform maintenance.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fan coil unit control module, characterized in that, It includes a housing, circuit board, power terminals, first communication terminal, second communication terminal, valve open terminal, valve close terminal, low-speed terminal, medium-speed terminal, high-speed terminal, and DC brushless fan control terminal; The outer casing has a receiving cavity, and the circuit board is fixed inside the receiving cavity; The power terminal, the first communication terminal, the second communication terminal, the valve open terminal, the valve close terminal, the low-speed terminal, the medium-speed terminal, the high-speed terminal, and the DC brushless fan control terminal all pass through the housing and are connected to the circuit board. The power terminal is used to connect to a power source; The first communication terminal is used to connect to the output terminal of the temperature controller; The second communication terminal is used to connect to the input terminal of the temperature controller; The valve opening terminal is used to connect to the opening terminal that controls the water inlet pipe of the fan coil unit. The valve closing terminal is used to connect to the closing terminal that controls the disconnection of the water inlet pipe of the fan coil unit; The low-speed terminal is used to connect to the low-speed terminal that controls the low-speed operation of the three-speed fan coil unit. The medium-speed terminal is used to connect to the medium-range terminal that controls the medium-speed operation of the three-speed fan coil unit; The high-speed terminal is used to connect to the high-grade terminal that controls the high-speed operation of the three-speed fan coil unit; The DC brushless fan coil control terminal is used to connect to the operating terminal that controls the airflow speed of the DC brushless fan coil unit.

2. The fan coil unit control module according to claim 1, characterized in that: The housing includes a detachably connected base plate and a cover plate, the base plate and the cover plate enclosing the receiving cavity.

3. The fan coil unit control module according to claim 2, characterized in that: A reinforcing plate is fixed to the side surface of the base plate facing away from the cover plate.

4. The fan coil unit control module according to claim 3, characterized in that: The reinforcing plate has a notch.

5. The fan coil unit control module according to any one of claims 2-4, characterized in that: The base plate has multiple mounting holes circumferentially through it, and multiple fasteners are inserted into the multiple mounting holes respectively.

6. A three-speed fan coil unit control assembly, comprising a first temperature controller, a first temperature and humidity sensor, and a three-speed fan coil unit, wherein the output terminal of the first temperature and humidity sensor is communicatively connected to the input terminal of the first temperature controller, characterized in that, It also includes the fan coil unit control module according to any one of claims 1-5, wherein, The output terminal of the first temperature controller is connected to the first communication terminal of the fan coil control module; The input terminal of the first temperature controller is connected to the second communication terminal of the fan coil control module; The power supply terminal of the first temperature controller is connected to the power supply terminal of the fan coil control module; The valve opening terminal of the fan coil control module is connected to the opening terminal of the three-speed fan coil unit. The valve-closing terminal of the fan coil control module is connected to the shut-off terminal of the three-speed fan coil unit. The low-speed terminal of the fan coil control module is connected to the low-speed terminal of the three-speed fan coil unit. The medium-speed terminal of the fan coil control module is connected to the medium-range terminal of the three-speed fan coil unit. The high-speed terminal of the fan coil control module is connected to the high-speed terminal of the three-speed fan coil unit.

7. The three-speed fan coil control assembly according to claim 6, characterized in that, Also includes: The first water immersion sensor is installed in the water collection tray of the three-speed fan coil unit; The first alarm device has its input terminal connected in communication with the output terminal of the first water immersion sensor.

8. The three-speed fan coil control assembly according to claim 7, characterized in that, Also includes: The first vibration sensor is installed on the fan of the three-speed fan coil unit, and the output terminal of the first vibration sensor is communicatively connected to the input terminal of the first alarm.

9. A DC brushless fan coil unit control assembly, comprising a second temperature controller, a second temperature and humidity sensor, and a DC brushless fan coil unit, wherein the output terminal of the second temperature and humidity sensor is communicatively connected to the input terminal of the second temperature controller, characterized in that, It also includes the fan coil unit control module according to any one of claims 1-5, wherein, The output terminal of the second temperature controller is connected to the first communication terminal of the fan coil control module; The input terminal of the second temperature controller is connected to the second communication terminal of the fan coil control module; The power supply terminal of the second temperature controller is connected to the power supply terminal of the fan coil control module; The valve opening terminal of the fan coil control module is connected to the opening terminal of the DC brushless fan coil unit. The valve-off terminal of the fan coil control module is connected to the shut-off terminal of the DC brushless fan coil unit. The DC brushless fan coil control terminal of the fan coil control module is connected to the operating terminal of the DC brushless fan coil unit.

10. The DC brushless fan coil control assembly according to claim 9, characterized in that, Also includes: The second water immersion sensor is installed in the water collection tray of the DC brushless fan coil unit. The second vibration sensor is installed on the fan of the DC brushless fan coil unit; The second alarm device has its input terminal communicatively connected to the output terminal of the second water immersion sensor and the output terminal of the second vibration sensor.

Images