Fan coil panel capable of metering energy consumption

Abstract

The invention discloses a fan coil panel capable of metering energy consumption. The fan coil panel comprises a panel shell, bolts, a junction box, counter bores, internal threaded columns, positioning arc-shaped rods, decorative covers, property lugs, protrusions and grooves. According to the fan coil panel capable of metering the energy consumption, a panel shell is fixedly installed at an opening of a junction box through bolts, the panel shell corresponds to and is matched with the opening of the junction box, counter bores used for penetrating and embedding of the bolts are symmetrically formed in the two sides of the panel shell, internal threaded columns used for threaded connection of the bolts are symmetrically and fixedly connected to the inner side of the junction box, and the inner threaded columns are fixedly connected with the junction box. The panel shell is fixedly connected with the junction box through bolts, and is provided with counter bores and internal threaded columns to ensure stable installation. The positioning arc-shaped rods added on the back face are attached to the inner threaded columns, accurate positioning is achieved, deviation is avoided, the decorative cover is designed to be clamped through the elastic lugs, the protrusions and the grooves, assembly type installation is achieved, the edge is shielded, and the attractiveness and the protection performance are improved. According to the structure, the installation process is simplified, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of control panels, specifically a fan coil unit control panel capable of measuring energy consumption. Background Technology

[0002] Fan coil units, as core terminal equipment in central air conditioning systems, have become widely used in various building scenarios such as office buildings, hotels, hospitals, commercial complexes, and high-end residences due to their advantages of precise temperature control and flexible installation, making them a key device for maintaining a comfortable indoor environment. In terms of energy consumption, fan coil units, which need to continuously adjust airflow and cooling / heating output according to environmental needs, account for as much as 40-60% of the total building energy consumption. This percentage may further increase, especially in high-traffic commercial spaces or medical facilities that operate year-round, making it one of the core components of building energy consumption. While current mainstream fan coil unit panels have achieved real-time display of temperature and humidity and adjustment of fan speed, and some high-end models also support mode switching (such as cooling, heating, and air supply modes) and timer functions, the functional design still focuses on "environmental control" and generally lacks energy consumption metering and visualization functions. They cannot count the power consumption during equipment operation in real time, nor can they present historical energy consumption data to users or managers in an intuitive form.

[0003] The demand for end-point energy consumption data in building energy conservation is becoming increasingly urgent, and fan coil unit panels that can measure energy consumption have become the key to filling functional gaps and achieving refined energy conservation management. Summary of the Invention

[0004] The purpose of this invention is to provide a fan coil unit panel that can measure energy consumption, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A fan coil unit panel capable of measuring energy consumption includes a panel housing, which is fixedly installed at the opening of a junction box by bolts. The panel housing corresponds to and is adapted to the opening of the junction box. The two sides of the panel housing are symmetrically provided with countersunk holes for bolts to pass through and be embedded. The inner side of the junction box is symmetrically fixedly connected with internal threaded posts for bolt thread connection. The panel housing is provided with an environmental sensing module, an energy consumption metering module, a core control module, an interface module, and a storage module.

[0006] As a further aspect of the present invention: a positioning arc-shaped rod is fixedly connected to the back of the panel housing corresponding to the internal threaded post, and the inner wall of the positioning arc-shaped rod is in contact with the outer wall of the internal threaded post.

[0007] As a further embodiment of the present invention: a decorative cover adapted to the outer side of the panel housing is fastened thereon, and elastic ears are separated from the top and bottom of the panel housing by notches. A protrusion is fixedly connected to the elastic ear, and a groove is opened on the inner wall of the decorative cover corresponding to the protrusion.

[0008] As a further embodiment of the present invention: the environmental sensing module includes a temperature monitoring unit and a humidity monitoring unit; the energy consumption metering module includes a real-time power calculation unit, a real-time power consumption calculation unit, a daily power consumption statistics unit, a monthly power consumption statistics unit, and an annual power consumption statistics unit; the core control module includes a temperature control unit, a mode control unit, and a wind speed control unit; and the interactive interface module includes a main display interface unit, a control operation interface unit, and a power consumption statistics interface unit.

[0009] As a further aspect of the present invention, the calculation steps of the real-time power calculation unit are as follows: Step 1: Define the fan base power mapping table: 0W for off position, 10W for 10% position, 20W for 20% position, 30W for 30% position, 40W for 40% position, 50W for 50% position, 60W for 60% position, 70W for 70% position, 80W for 80% position, 90W for 90% position, 1000W for 1000% position, fan speed correction coefficient is 1.05, coil off coefficient is 0, coil on coefficient is 1, low load coefficient is 0.3, medium load coefficient is 0.6, high load coefficient is 1.0, cooling mode coefficient is 1.0, heating coefficient is 1.1, basic coil function is 800W, control circuit power is 5W; Step 2: Real-time power of the fan = base power × wind speed correction factor; Step 3: Coil load power = Basic function × Valve status coefficient × Temperature difference load coefficient × Mode coefficient; Step 4: Real-time power = Control circuit power + Fan real-time power + Coil load power; The calculation steps of the real-time power consumption calculation unit are as follows: Step 1: Power consumption = Power × Time; Step 2: Design the calculation time interval to be 1 hour; The calculation steps for the daily power consumption statistics unit are as follows: Step 1: The daily cut-off time is defined as 00:00:00 every day; Step 2: Continuously calculate the power consumption per hour using the standard power consumption = power × time; Step 3: Power consumption is reset to zero after time switching; The calculation steps for the monthly power consumption statistics unit are as follows: Step 1: Calculate daily power consumption and display it in the monthly power consumption statistics unit; Step 2: Switch according to the calendar month; Step 3: Reset statistics after switching; The calculation steps for the annual power consumption statistics unit are as follows: Step 1: Calculate monthly power consumption and display it in the annual power consumption data statistics unit.

[0010] As a further embodiment of the present invention: the low load ΔT ≤ 1.0℃, the medium load 1.0℃ < ΔT ≤ 3.0℃, the high load area ΔT > 3.0℃, and the temperature difference ΔT = indoor temperature - set temperature.

[0011] As a further embodiment of the present invention: the temperature control unit is used for temperature adjustment, the mode control unit is used for mode setting, the wind speed control unit is used for wind speed setting, and the main display interface unit, the control operation interface unit, and the power consumption statistics interface unit include a common navigation bar, which includes display, control, and power consumption.

[0012] As a further embodiment of the present invention: the display interface includes time display, setting stability display, ambient temperature display, humidity display, wind speed display and real-time power display.

[0013] As a further aspect of the present invention: the control includes mode setting, temperature setting and fan speed setting, the mode setting includes cooling and heating, the temperature setting range is 16-32℃, the fan speed setting range is 10%-100%, and the fan speed setting also includes automatic fan speed.

[0014] As a further aspect of the present invention, the power consumption includes real-time power consumption statistics line chart, daily power consumption statistics line chart, monthly power consumption statistics line chart, and annual power consumption statistics line chart.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention integrates an energy consumption metering module to achieve continuous monitoring and calculation of the energy consumption of fan coil units. Specifically, real-time power calculation is based on fan speed, wind speed correction coefficient, coil load coefficient, and mode coefficient, and is dynamically updated using the formula "Real-time Power = Control Circuit Power + Fan Real-time Power + Coil Load Power". The calculation interval is 1 hour to ensure data accuracy. The power consumption statistics unit accumulates and resets data on a daily, monthly, and yearly basis, supports historical data backtracking, and solves the problem of missing energy consumption data in existing technologies, providing a data foundation for energy-saving management.

[0016] 2. This invention presents energy consumption data to users in an intuitive way through an interactive interface module. The main display interface shows the real-time time, set temperature, ambient temperature, humidity, wind speed, and real-time power consumption; the power consumption statistics interface provides real-time, daily, monthly, and yearly power consumption statistics line graphs, making it easy for users to visually monitor energy consumption trends. This overcomes the limitations of existing panels that only focus on "environmental control," allowing users to quickly switch interfaces via the navigation bar to set modes, adjust temperatures, and set wind speeds, making operation simple.

[0017] 3. In this invention, the panel housing is fixedly connected to the junction box with bolts, and countersunk holes and internally threaded posts ensure stable installation. The positioning arc-shaped rod added to the back fits snugly against the internally threaded post, achieving precise positioning and preventing misalignment. The decorative cover, through its elastic lugs and the interlocking design of protrusions and grooves, achieves assembly-type installation, concealing edges and improving aesthetics and protection. This structure simplifies the installation process and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a fan coil unit panel that can measure energy consumption.

[0019] Figure 2 An exploded front view of a fan coil unit panel that can measure energy consumption.

[0020] Figure 3 This is an exploded view of the back of a fan coil unit panel that can measure energy consumption.

[0021] Figure 4 This is the main display interface in a fan coil unit panel that can measure energy consumption.

[0022] Figure 5 It is a control and operation interface in the panel of a fan coil unit that can measure energy consumption.

[0023] Figure 6 This is a power consumption statistics interface in a fan coil unit panel that can measure energy consumption.

[0024] In the diagram: 1. Panel housing; 2. Bolt; 3. Junction box; 4. Countersunk hole; 5. Internally threaded post; 6. Positioning arc rod; 7. Decorative cover; 8. Flexible lug; 9. Protrusion; 10. Groove. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-6 In this embodiment of the invention, a fan coil unit panel capable of measuring energy consumption includes a panel housing 1. The panel housing 1 is fixedly installed at the opening of a junction box 3 by bolts 2. The panel housing 1 corresponds to and is adapted to the opening of the junction box 3. Countersunk holes 4 for bolts 2 to pass through and be embedded are symmetrically opened on both sides of the panel housing 1. Internal threaded posts 5 for bolts 2 to be threaded are symmetrically fixedly connected to the inner side of the junction box 3. The panel housing 1 is provided with an environmental sensing module, an energy consumption metering module, a core control module, an interface module, and a storage module.

[0027] A positioning arc rod 6 is fixedly connected to the back of the panel housing 1 corresponding to the internal thread post 5, and the inner wall of the positioning arc rod 6 is in contact with the outer wall of the internal thread post 5.

[0028] The panel housing 1 can be positioned by setting the positioning arc rod 6.

[0029] A decorative cover 7 is attached to the outer side of the panel housing 1. The top and bottom of the panel housing 1 are separated by notches to form elastic ears 8. A protrusion 9 is fixedly connected to the elastic ear 8. A groove 10 is provided on the inner wall of the decorative cover 7 corresponding to the protrusion 9.

[0030] The elastic ear 8 drives the protrusion 9 to engage in the groove 10, thereby assembling the decorative cover 7 and concealing the edge of the panel housing 1.

[0031] The environmental sensing module includes a temperature monitoring unit and a humidity monitoring unit; the energy consumption metering module includes a real-time power calculation unit, a real-time power consumption calculation unit, a daily power consumption statistics unit, a monthly power consumption statistics unit, and an annual power consumption statistics unit; the core control module includes a temperature control unit, a mode control unit, and a wind speed control unit; and the interface module includes a main display interface unit, a control operation interface unit, and a power consumption statistics interface unit.

[0032] The calculation steps of the real-time power calculation unit are as follows: Step 1: Define the fan base power mapping table: 0W for off position, 10W for 10% position, 20W for 20% position, 30W for 30% position, 40W for 40% position, 50W for 50% position, 60W for 60% position, 70W for 70% position, 80W for 80% position, 90W for 90% position, 1000W for 1000% position, fan speed correction coefficient is 1.05, coil off coefficient is 0, coil on coefficient is 1, low load coefficient is 0.3, medium load coefficient is 0.6, high load coefficient is 1.0, cooling mode coefficient is 1.0, heating coefficient is 1.1, basic coil function is 800W, control circuit power is 5W; Step 2: Real-time power of the fan = base power × wind speed correction factor; Step 3: Coil load power = Basic function × Valve status coefficient × Temperature difference load coefficient × Mode coefficient; Step 4: Real-time power = Control circuit power + Fan real-time power + Coil load power; The calculation steps of the real-time power consumption calculation unit are as follows: Step 1: Power consumption = Power × Time; Step 2: Design the calculation time interval to be 1 hour; The calculation steps for the daily power consumption statistics unit are as follows: Step 1: The daily cut-off time is defined as 00:00:00 every day; Step 2: Continuously calculate the power consumption per hour using the standard power consumption = power × time; Step 3: Power consumption is reset to zero after time switching; The calculation steps for the monthly power consumption statistics unit are as follows: Step 1: Calculate daily power consumption and display it in the monthly power consumption statistics unit; Step 2: Switch according to the calendar month; Step 3: Reset statistics after switching; The calculation steps for the annual power consumption statistics unit are as follows: Step 1: Calculate monthly power consumption and display it in the annual power consumption data statistics unit.

[0033] For low load, ΔT ≤ 1.0℃; for medium load, 1.0℃ < ΔT ≤ 3.0℃; for high load, ΔT > 3.0℃. Temperature difference ΔT = Indoor temperature - Set temperature.

[0034] The temperature control unit is used for temperature adjustment, the mode control unit is used for mode setting, the wind speed control unit is used for wind speed setting, and the main display interface unit, the control operation interface unit, and the power consumption statistics interface unit all share a common navigation bar, which includes display, control, and power consumption information.

[0035] The corresponding display interface includes time display, stable setting display, ambient temperature display, humidity display, wind speed display, and real-time power display.

[0036] The control includes mode settings, temperature settings, and fan speed settings. Mode settings include cooling and heating, with a temperature setting range of 16-32℃. Fan speed settings range from 10% to 100%, and fan speed settings also include automatic fan speed.

[0037] Power consumption includes real-time power consumption statistics line charts, daily power consumption statistics line charts, monthly power consumption statistics line charts, and annual power consumption statistics line charts.

[0038] The working principle of this invention is: In use, the panel housing 1 is fixedly installed at the opening of the junction box 3 using bolts 2, ensuring a stable connection. A positioning arc-shaped rod 6 is provided on the back of the panel housing 1 for precise alignment of the internal threaded post 5, preventing installation misalignment. Meanwhile, the decorative cover 7, through the engaging design of the elastic lug 8 and the protrusion 9 with the groove 10, conceals the edges, enhancing both aesthetics and protection. This structural design ensures reliable operation of the panel after installation, providing physical support for the internal modules.

[0039] When the workflow starts, the environmental sensing module begins real-time monitoring of indoor environmental parameters. The temperature and humidity monitoring units continuously collect data, such as indoor temperature and humidity, which serves as the basis for subsequent control and metering. For example, when the user sets a target temperature, the system compares the monitored temperature with the set temperature and calculates the temperature difference (ΔT) to determine the air conditioning load status.

[0040] The collected environmental data is immediately transmitted to the core control module. This module includes a temperature control unit, a mode control unit, and a fan speed control unit, which dynamically adjust according to user settings (such as through the user interface of the interactive module). The temperature control unit regulates the operation of the fan coil unit to bring the indoor temperature close to the set value; the mode control unit switches between cooling and heating modes; and the fan speed control unit automatically or manually adjusts the fan speed (from 10% to 100%) according to the load. This process ensures the accuracy of environmental control while optimizing energy consumption.

[0041] Meanwhile, the energy metering module begins its core energy consumption calculation. The real-time power calculation unit calculates real-time power based on the fan's base power mapping table (e.g., 0W for the off position, 1000W for the 100% position), the fan speed correction coefficient (1.05), the valve status coefficient (0 for coil off, 1 for open), the temperature difference load coefficient (0.3 for low load ΔT≤1.0℃, 0.6 for medium load 1.0℃<ΔT≤3.0℃, 1.0 for high load ΔT>3.0℃), and the mode coefficient (1.0 for cooling, 1.1 for heating). The formula is: Real-time power = Control circuit power (5W) + Fan real-time power (base power × fan speed correction coefficient) + Coil load power (base function 800W × valve status coefficient × temperature difference load coefficient × mode coefficient). This calculation updates every second, reflecting instantaneous energy consumption.

[0042] Subsequently, the real-time power consumption calculation unit converts the power into energy consumption, following the principle of "power consumption = power × time," with a calculation interval set to 1 hour. For example, if the real-time power is 500W, the energy consumption after 1 hour of operation is 0.5kWh. This accumulation mechanism ensures the continuity of data.

[0043] Energy consumption data is further processed by the statistics unit. The daily power consumption statistics unit performs a daily switch at 00:00:00 every day, saving the cumulative energy consumption for that day and then clearing it to zero before starting statistics for a new day; the monthly power consumption statistics unit is based on daily power consumption data and is cleared to zero at the beginning of each month; the annual power consumption statistics unit accumulates monthly power consumption data. All historical data is stored in the storage module and supports backtracking queries.

[0044] Finally, the interactive interface module displays data in real time through the main display interface unit, including time, set temperature, ambient temperature, humidity, wind speed, and real-time power; the control operation interface unit allows users to set the mode, temperature (16-32℃), and wind speed; and the power consumption statistics interface unit visualizes real-time, daily, monthly, and yearly power consumption statistics in the form of line graphs, making it convenient for users to intuitively manage energy consumption.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fan coil unit panel capable of measuring energy consumption, comprising a panel housing (1), characterized in that: The panel housing (1) is fixedly installed at the opening of the junction box (3) by bolts (2). The opening of the panel housing (1) corresponds to and is adapted to the opening of the junction box (3). The two sides of the panel housing (1) are symmetrically provided with countersunk holes (4) for the bolts (2) to pass through and be embedded. The inner side of the junction box (3) is symmetrically fixedly connected with internal threaded posts (5) for the bolts (2) to be threaded. The panel housing (1) is provided with an environmental sensing module, an energy consumption metering module, a processing core control module, an interface module and a storage module.

2. The fan coil unit panel with measurable energy consumption according to claim 1, characterized in that: The back of the panel housing (1) is fixedly connected to the internal threaded post (5) with a positioning arc rod (6), and the inner wall of the positioning arc rod (6) is in contact with the outer wall of the internal threaded post (5).

3. The fan coil unit panel with measurable energy consumption according to claim 1, characterized in that: The outer side of the panel housing (1) is fitted with a decorative cover (7) that is compatible with it. The top and bottom of the panel housing (1) are separated by notches to form elastic ears (8). A protrusion (9) is fixedly connected to the elastic ear (8). The inner wall of the decorative cover (7) is provided with a groove (10) corresponding to the protrusion (9).

4. The fan coil unit panel with measurable energy consumption according to claim 1, characterized in that: The environmental sensing module includes a temperature monitoring unit and a humidity monitoring unit; the energy consumption metering module includes a real-time power calculation unit, a real-time power consumption calculation unit, a daily power consumption statistics unit, a monthly power consumption statistics unit, and an annual power consumption statistics unit; the core control module includes a temperature control unit, a mode control unit, and a wind speed control unit; and the interface module includes a main display interface unit, a control operation interface unit, and a power consumption statistics interface unit.

5. A fan coil unit panel capable of measuring energy consumption according to claim 4, characterized in that: The calculation steps of the real-time power calculation unit are as follows: Step 1: Define the fan base power mapping table: 0W for off position, 10W for 10% position, 20W for 20% position, 30W for 30% position, 40W for 40% position, 50W for 50% position, 60W for 60% position, 70W for 70% position, 80W for 80% position, 90W for 90% position, 1000W for 1000% position, fan speed correction coefficient is 1.05, coil off coefficient is 0, coil on coefficient is 1, low load coefficient is 0.3, medium load coefficient is 0.6, high load coefficient is 1.0, cooling mode coefficient is 1.0, heating coefficient is 1.1, basic coil function is 800W, control circuit power is 5W; Step 2: Real-time power of the fan = base power × wind speed correction factor; Step 3: Coil load power = Basic function × Valve status coefficient × Temperature difference load coefficient × Mode coefficient; Step 4: Real-time power = Control circuit power + Fan real-time power + Coil load power; The calculation steps of the real-time power consumption calculation unit are as follows: Step 1: Power consumption = Power × Time; Step 2: Design the calculation time interval to be 1 hour; The calculation steps for the daily power consumption statistics unit are as follows: Step 1: The daily cut-off time is defined as 00:00:00 every day; Step 2: Continuously calculate the power consumption per hour using the standard power consumption = power × time; Step 3: Power consumption is reset to zero after time switching; The calculation steps for the monthly power consumption statistics unit are as follows: Step 1: Calculate daily power consumption and display it in the monthly power consumption statistics unit; Step 2: Switch according to the calendar month; Step 3: Reset statistics after switching; The calculation steps for the annual power consumption statistics unit are as follows: Step 1: Calculate monthly power consumption and display it in the annual power consumption data statistics unit.

6. A fan coil unit panel capable of measuring energy consumption according to claim 5, characterized in that: For low load, ΔT ≤ 1.0℃; for medium load, 1.0℃ < ΔT ≤ 3.0℃; for high load, ΔT > 3.0℃; and the temperature difference ΔT = indoor temperature - set temperature.

7. A fan coil unit panel capable of measuring energy consumption according to claim 4, characterized in that: The temperature control unit is used for temperature adjustment, the mode control unit is used for mode setting, the wind speed control unit is used for wind speed setting, and the main display interface unit, the control operation interface unit, and the power consumption statistics interface unit all include a common navigation bar, which includes display, control, and power consumption information.

8. A fan coil unit panel capable of measuring energy consumption according to claim 7, characterized in that: The corresponding display interface includes time display, stable setting display, ambient temperature display, humidity display, wind speed display, and real-time power display.

9. A fan coil unit panel capable of measuring energy consumption according to claim 7, characterized in that: The control includes mode settings, temperature settings, and fan speed settings. Mode settings include cooling and heating, with a temperature setting range of 16-32℃ and a fan speed setting range of 10%-100%. The fan speed settings also include automatic fan speed.

10. A fan coil unit panel capable of measuring energy consumption according to claim 7, characterized in that: The power consumption includes real-time power consumption statistics line charts, daily power consumption statistics line charts, monthly power consumption statistics line charts, and annual power consumption statistics line charts.

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