阅读说明：本技术 一种更为精准控温的风机盘管温控系统 (Fan coil temperature control system with more accurate temperature control ) 是由 苏晓翔 蔡永足 杨川 于 2021-03-11 设计创作，主要内容包括：本发明公开了一种更为精准控温的风机盘管温控系统,其包括温控模块及风盘模块,温控模块包括温控板及第一传感器,温控板接收第一传感器采集到的外界温湿度数据,风盘模块包括第二传感器及主控板,第二传感器安装在风机盘管上用于采集回风口的温湿度,主控板分别接收第二传感器的采集信号及温控板的控制信号并控制风机盘管工作；本发明通过温控模块的第一传感器进行外界的温湿度采集,远离继电器及风盘模块的温度影响,降低了功耗产热的影响,将第一传感器与第二传感器采集的数据相结合,以得到更为精准地控温。(The invention discloses a fan coil temperature control system with more accurate temperature control, which comprises a temperature control module and an air disc module, wherein the temperature control module comprises a temperature control board and a first sensor, the temperature control board receives external temperature and humidity data acquired by the first sensor, the air disc module comprises a second sensor and a main control board, the second sensor is arranged on a fan coil and is used for acquiring the temperature and humidity of an air return port, and the main control board respectively receives an acquisition signal of the second sensor and a control signal of the temperature control board and controls the fan coil to work; according to the invention, the external temperature and humidity are collected through the first sensor of the temperature control module, the temperature influence of the relay and the air disc module is kept away, the influence of power consumption and heat production is reduced, and the data collected by the first sensor and the second sensor are combined to obtain more accurate temperature control.)

1. The utility model provides a fan coil temperature control system of more accurate accuse temperature which characterized in that: including temperature control module and wind disc module, temperature control module includes control by temperature change board and first sensor, the external humiture data that first sensor was gathered is received to the control by temperature change board, the wind disc module includes second sensor and main control board, the humiture that the second sensor was used for gathering the return air inlet is installed on fan coil, the main control board is received the control signal of the collection signal of second sensor and control by temperature change board respectively and is controlled fan coil work.

2. A fan coil temperature control system with more accurate temperature control as claimed in claim 1, wherein: the air disc module further comprises an AC-DC converter and a relay group, the AC-DC converter is respectively connected with the commercial power and the main control board, the relay group is connected between the main control board and the fan coil, and the work of the fan coil is controlled through the relay group.

3. A fan coil temperature control system with more accurate temperature control as claimed in claim 2, wherein: the relay group comprises a plurality of relays, the fan coil is provided with a low-speed control end, a medium-speed control end, a high-speed control end and a water inlet two-way valve control end, and the low-speed control end, the medium-speed control end, the high-speed control end and the water inlet two-way valve control end are respectively connected with one relay.

4. A fan coil temperature control system with more accurate temperature control as claimed in claim 1, wherein: the main control board is connected with a centralized control module used for controlling the temperature of water entering the fan coil through RS 485.

5. A fan coil temperature control system with more accurate temperature control as claimed in claim 4, characterized in that: the centralized control module comprises a cold and hot water unit for heating/cooling water to supply heat/cool.

6. A fan coil temperature control system with more accurate temperature control as claimed in claim 1, wherein: the main control board is an STM32F103CBT6 chip.

7. A fan coil temperature control system with more accurate temperature control as claimed in claim 1, wherein: the first sensor and the second sensor both adopt temperature and humidity sensors with the model number of SHT 30.

8. A fan coil temperature control system with more accurate temperature control as claimed in claim 1, wherein: the temperature control board is connected with the main control board through RS 485.

Technical Field

The invention relates to the technical field of water chiller equipment, in particular to a fan coil temperature control system capable of controlling temperature more accurately.

Background

With the demand for comfort of indoor living environment becoming higher and higher, the performance of air conditioning system which is vital to regulation of indoor living environment becomes higher and higher. The water cooler uses water as secondary refrigerant to exchange heat with indoor air, the air outlet temperature is soft, and sub-health of weak people caused by too low air blowing temperature is avoided. Summer is fresh and cool and not dry, soft air outlet is healthier, and linkage water floor heating supplies heat to a room in a radiation mode in winter, so that the room temperature is more uniform and comfortable. The indoor temperature control of the water chiller depends on the control of the fan coil, so the temperature control of the fan coil is also important for the whole system.

The fan coil control in the market at present relies on the control of control by temperature control panel. The temperature control panel on the market is basically mains-powered and integrates a relay to control the wind speed and the two-way valve of the fan coil. The AC/DC circuit for converting the commercial power into the direct current required by the panel power supply will generate heat in this part of the circuit due to the conversion efficiency, and the relay will also generate heat when it is turned on. Generally, whole panel has certain calorific capacity, and when the panel was installed in 86 boxes, this partial heat distribute out from the panel all around, and this calorific capacity will be serious like this disturb the measurement of the temperature or humiture on the panel, cause the great actual room temperature that deviates of temperature that detects, seriously influence the air conditioner to the regulating effect of indoor environment, current control by temperature change panel does not measure humidity data moreover, thereby it is dry and uncomfortable to lead to humidity to lead to the people to feel too low easily.

Disclosure of Invention

The invention aims to provide a fan coil temperature control system with more accurate temperature control.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a fan coil temperature control system of more accurate accuse temperature, includes temperature control module and wind dish module, temperature control module includes control by temperature change board and first sensor, the external humiture data that first sensor was gathered is received to the control by temperature change board, the wind dish module includes second sensor and main control board, the humiture that the second sensor was used for gathering the return air inlet is installed on fan coil, the main control board receives the control signal and the control signal of control by temperature change board of second sensor respectively and controls fan coil work.

Furthermore, the air coil module further comprises an AC-DC converter and a relay group, the AC-DC converter is respectively connected with the commercial power and the main control board, the relay group is connected between the main control board and the fan coil, and the work of the fan coil is controlled through the relay group.

Furthermore, the relay group comprises a plurality of relays, the fan coil is provided with a low-speed control end, a medium-speed control end, a high-speed control end and a water inlet two-way valve control end, and the low-speed control end, the medium-speed control end, the high-speed control end and the water inlet two-way valve control end are respectively connected with one relay.

Furthermore, the main control board is connected with a centralized control module for controlling the temperature of water entering the fan coil through RS 485.

Further, the centralized control module comprises a cold and hot water unit for heating/cooling water to supply heat/cool.

Further, the main control board is an STM32F103CBT6 chip.

Further, the first sensor and the second sensor both adopt temperature and humidity sensors with the model number of SHT 30.

Further, the temperature control board is connected with the main control board through RS 485.

After adopting the technical scheme, compared with the background technology, the invention has the following advantages:

1. according to the temperature control module, data of external temperature and humidity are collected, the air speed and temperature of the fan coil are controlled through the air disc module, temperature and humidity are collected through the first sensor independent of the temperature control module, the temperature influence of the relay and the air disc module is kept away, the external temperature and humidity are collected more accurately, the temperature and humidity of the air return opening are collected through the second sensor, more accurate regulation and control data are obtained through combination of external temperature and humidity analysis, the influence of power consumption on heat production is reduced, and the temperature control board is concentrated on temperature and humidity measurement.

2. The air disc module is connected with the fan coil through the relay group consisting of the relays, the air speed and water inlet of the fan coil are controlled by controlling the relay group through the main control board, the control modes are not interfered with each other, and the efficiency is high.

3. According to the invention, the control signal is fed back to the centralized control module through the RS485 by the main control board, and the water temperature entering the fan coil is controlled and adjusted by the centralized control module.

Drawings

FIG. 1 is a block diagram of the overall system of the present invention;

fig. 2 is a detailed block diagram of the air plate module of the present invention.

Description of reference numerals:

the system comprises a temperature control module 1, an air disc module 2, a fan coil pipe 3 and a centralized control module 4;

the water inlet control device comprises a temperature control board 11, a first sensor 12, a second sensor 21, a main control board 22, an AC-DC converter 23, a relay group 24, a low-speed control end 31, a medium-speed control end 32, a high-speed control end 33 and a water inlet two-way valve control end 34.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

With reference to fig. 1 to 2, the invention discloses a fan coil temperature control system with more accurate temperature control, which comprises a temperature control module 1 and an air disc module 2, wherein the temperature control module 1 comprises a temperature control board 11 and a first sensor 12, the temperature control board 11 receives external temperature and humidity data acquired by the first sensor 12, the air disc module 2 comprises a second sensor 21 and a main control board 22, the second sensor 21 is installed on a fan coil 3 and used for acquiring the temperature and humidity of a return air inlet, and the main control board 11 respectively receives an acquisition signal of the second sensor 21 and a control signal of the temperature control board 11 and controls the fan coil 3 to work.

The air coil module 2 further comprises an AC-DC converter 23 and a relay group 24, the AC-DC converter 23 is respectively connected with a mains supply and the main control board 22, the mains supply is 220V/230V, alternating current is converted into direct current through the AC-DC converter 23 and is used by the main control board 22, the relay group is connected between the main control board 22 and the fan coil 3, and the work of the fan coil 3 is controlled through the relay group 24.

The relay group 24 is composed of a plurality of relays, the fan coil 3 is provided with a low-speed control end 31, a medium-speed control end 32, a high-speed control end 33 and a water inlet two-way valve control end 34, and the low-speed control end 31, the medium-speed control end 32, the high-speed control end 33 and the water inlet two-way valve control end 34 are respectively connected with one relay; the air coil module 2 is connected with the fan coil 3 through a relay group 24 consisting of relays, the main control board 22 controls the relay group 24 to control the air speed and water inlet of the fan coil 3, the control modes are not interfered with each other, and the efficiency is high.

In the embodiment, the air coil module 2 is arranged on the fan coil 3, so that strong electric wire materials required by the fan coil 3 to the temperature control plate are saved.

The main control board 22 is connected with a centralized control module 4 for controlling the temperature of water entering the fan coil 3 through RS485, and the centralized control module 4 comprises a cold and hot water unit for heating/cooling water to supply heat/cool and a third sensor for detecting the change of the temperature of water; the cold and hot water unit of the embodiment is composed of a cold water unit and a hot water unit, wherein the cold water unit is divided into an air-cooled cold water unit and a water-cooled cold water unit, and is divided into a screw type cold water unit, a vortex type cold water unit and a centrifugal type cold water unit according to a compressor, and the hot water unit is preferably a hot water unit or a heating rod with lower cost and high efficiency can be selected; and switching the units according to the requirements.

The wind disk module 2 is also connected with an RS485 which is used for the centralized control module 4 to do more intelligent linkage.

The main control board 22 is an STM32F103CBT6 chip, the first sensor 12 and the second sensor 21 both adopt SHT30 temperature and humidity sensors, and the temperature control board 11 is connected with the main control board 22 through RS 485. Control signals are fed back to the centralized control module 4 through the main control board 22 through RS485, and the water temperature entering the fan coil 3 is controlled and adjusted through the centralized control module 4.

This embodiment temperature control module 1 gathers the data of external humiture, control 3 wind speeds of fan coil and humiture through wind dish module 2, carry out humiture through temperature control module 1 independent first sensor 12 and gather, keep away from relay and wind dish module 2's temperature influence, more accurately gather external humiture, gather the humiture in return air inlet through second sensor 12, combine external humiture analysis to obtain more accurate regulation and control data, the thermogenic influence of consumption has been reduced, temperature control plate 11 is absorbed in the humiture measurement.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.