CN111121252B

CN111121252B - Actuator of temperature control system and temperature control system

Info

Publication number: CN111121252B
Application number: CN201811288893.9A
Authority: CN
Inventors: 王晓松; 贾仙海
Original assignee: Siemens Schweiz AG
Current assignee: Siemens Schweiz AG
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2022-12-06
Anticipated expiration: 2038-10-31
Also published as: CN111121252A; WO2020089046A1

Abstract

An actuator of the temperature control system is provided, the temperature control system comprises a valve driving module (20), a fan driving module (30), a temperature sensor (40), a control module (10) and a wireless module (50). The valve drive module can receive a valve drive signal and drive the valve of the fan coil assembly. The fan drive module can receive a fan drive signal and control a fan of a fan coil assembly of the temperature control system. The temperature sensor is capable of detecting temperature and generating a measured temperature signal. The control module can receive the measured temperature signal and calculate and generate a valve driving signal and a fan driving signal according to preset parameters in the control module. The control module can send a temperature measuring signal to the outside or receive an external instruction to modify the preset parameters through the wireless module. The actuator provided by the invention can simplify the wiring of a temperature control system, reduce the overall cost and control the temperature more accurately. The invention also provides a temperature control system with the actuator.

Description

Actuator of temperature control system and temperature control system

Technical Field

The invention relates to an actuator, in particular to an actuator of a temperature control system, and further provides the temperature control system with the actuator.

Background

A typical hvac system typically includes an actuator, a thermostat, and a fan-coil assembly. The fan coil unit is dispersedly installed in each air-conditioning room as a terminal device of the air-conditioning system, and can independently process air. The fan coil assembly generally includes: coil pipes for supplying cold and hot mediums; a fan for making air flow through the coil pipe to perform heat exchange; and some necessary filters for purifying the air. The actuator is used for controlling a valve arranged in a pipeline for supplying the cold medium and the hot medium to the coil pipe, and the flow supply of the cold medium and the hot medium is controlled by controlling the valve. The thermostat, which is usually located indoors, controls the fan (e.g., wind speed) in the fan-coil assembly according to the difference between a preset temperature set value and an actual temperature value sensed by a temperature sensor installed therein, and at the same time, adjusts the flow of the cold and hot media flowing through the coil by an actuator.

In such conventional hvac systems, the actuator is typically located at the inlet of the fan coil assembly, in close proximity to the fan coil assembly, such as near the roof. Thermostats are typically located on an indoor wall location that is convenient for a user to manually operate. Because the temperature controller is far away from the fan coil assembly, the temperature controller is not favorable for accurately obtaining the measured temperature, and meanwhile, the wiring of the temperature control system is complicated, and the overall cost is increased.

Disclosure of Invention

The invention aims to provide an actuator of a temperature control system, which can simplify the wiring of the temperature control system, reduce the overall cost and simultaneously control the temperature more accurately.

It is another object of the present invention to provide a temperature control system having an actuator that simplifies the wiring of the temperature control system, reduces the overall cost, and also enables more accurate temperature control.

The actuator of the temperature control system comprises a valve driving module, a fan driving module, a temperature sensor, a control module and a wireless module. The valve drive module can receive a valve drive signal and drive a valve of the fan coil assembly according to the valve drive signal. The fan drive module can receive a fan drive signal and control a fan of a fan coil assembly of the temperature control system according to the fan drive signal. The temperature sensor is capable of detecting temperature and generating a measured temperature signal. The control module can receive the measured temperature signal and calculate and generate a valve driving signal and a fan driving signal according to preset parameters in the control module. The control module can be in wireless communication with the outside through the wireless module, and can send the measured temperature or receive an external instruction to modify the preset parameters.

The actuator of the temperature control system provided by the invention integrates the valve driving module, the fan driving module and the control module capable of intelligently controlling the valve driving module and the fan driving module, and the control module can be in wireless communication with external equipment through the wireless module and can send a measured temperature or receive an external instruction to modify a preset parameter. By the above scheme, the temperature controller in the existing temperature control system is replaced, and the cost generated by the temperature controller and the wiring thereof is saved. Meanwhile, the actuator also comprises a temperature sensor connected with the control module, and the actuator is usually arranged on the fan coil assembly, so that the temperature sensor can more accurately acquire the measured temperature to realize more accurate temperature control.

In yet another exemplary embodiment of an actuator of a temperature control system, a control module can control a fan to operate at three different speeds. The control module can further optimize a logic algorithm to control the fan, and user experience is improved.

In yet another exemplary embodiment of an actuator for a temperature control system, a valve drive module includes a motor and a motor drive circuit. The motor can drive the valve to open or close. The motor drive circuit can receive the valve drive signal and control the motor. The control to the valve is realized through the simple structure, and the cost of the actuator is reduced.

In another exemplary embodiment of the actuator of the temperature control system, the wireless module is one or more of a WIFI module, a bluetooth module, or a short-range wireless communication module. WIFI module, bluetooth module and close range wireless communication module can be fine be applicable to the industrial control terminal who uses commonly, make things convenient for executor and external wireless communication.

In another exemplary embodiment of the actuator of the temperature control system, the preset parameters of the control module include a set temperature, a fan speed, and a working mode.

In another exemplary embodiment of an actuator for a temperature control system, the actuator further includes a power module. The power module is respectively connected with the control module, the fan driving module and the valve driving module and provides electric energy.

The invention also provides a temperature control system which comprises a fan coil assembly, a valve, the actuator and a control terminal. The fan-coil assembly includes a fan and a coil. The valve is arranged at one end of the coil pipe. The valve driving module can receive a valve driving signal and drive the valve according to the valve driving signal, and the fan driving module can receive a fan driving signal and control the fan according to the fan driving signal. The control terminal is capable of wirelessly communicating with the control module via an application, the application including a user interface, the application program can display the preset parameters and the measured temperature of the control module through the user interface, and can also modify the preset parameters of the control module or switch the actuator by operating the user interface.

According to the temperature control system provided by the invention, the actuator replaces a temperature controller in the existing temperature control system, so that the cost generated by the temperature controller and the wiring of the temperature controller is saved. The executor still includes connection control module's temperature sensor simultaneously, because the executor sets up usually in the fan coil subassembly, temperature sensor can be more accurate acquireing the temperature of measurement in order to realize more accurate temperature control.

In yet another exemplary embodiment of the temperature control system, the temperature sensor is disposed at the return air opening of the fan coil assembly. Therefore, the environment temperature can be acquired more accurately, and the temperature can be controlled more accurately.

In another exemplary embodiment of the temperature control system, the application is a Web application, and the control terminal can open the Web application by scanning the two-dimensional code. Therefore, the direct access of the control terminal to the application program is realized, the problems of compatibility and the like in the installation process of the application program are avoided, and the use of a temperature control system is facilitated.

In another exemplary embodiment of the temperature control system, the application includes a plurality of user interfaces and is switchable between the plurality of user interfaces by operating the user interfaces. The user can flexibly customize the user interface to accommodate different application scenarios, the user experience is improved.

The above features, technical features, advantages and implementations of the actuators and temperature control systems of the temperature control systems will be further described in the following detailed description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.

Drawings

The following drawings are merely illustrative and explanatory of the invention and do not limit the scope of the invention.

FIG. 1 is a schematic diagram of an exemplary embodiment of an actuator.

FIG. 2 is a schematic block diagram of an exemplary embodiment of a temperature control system.

Description of the reference symbols

10. Control module

20. Valve driving module

22. Electric machine

24. Motor drive circuit

30. Fan driving module

40. Temperature sensor

50. Wireless module

60. Power supply module

70. Fan coil assembly

72. Valve gate

74. Fan blower

76. Coil pipe

80. And controlling the terminal.

Detailed Description

In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

FIG. 1 is a schematic diagram of an exemplary embodiment of an actuator of a temperature control system. Referring to fig. 1, the heating and ventilation system includes a fan coil assembly 70 and a valve 72. The fan coil assembly 70 is generally comprised of a fan 74 and a coil 76 (air heat exchanger) or the like. The media flowing within the coil 76 exchanges heat with air outside the tubes, causing the air to be cooled or heated to condition the air temperature within the room. A valve 72 is provided at one end of the coil and is actuated by an actuator to control the flow of media through the coil 76. The actuator comprises a valve driving module 20, a fan driving module 30, a temperature sensor 40, a control module 10 and a wireless module 50.

The valve actuation module 20 is capable of receiving a valve actuation signal and actuating the valve 72 at one end of the coil 76 in response to the valve actuation signal. As shown in fig. 1, a valve 72 is provided at the outlet pipe of the coil 76 of the fan coil assembly 70, and the opening or closing of the valve 72 can control the flow of the medium in the coil 76. In the illustrated embodiment, the valve drive module 20 includes, for example, a motor 22 and a motor drive circuit 24. The motor 22 can drive the valve 72 open or closed via, for example, a gearbox and mechanical transmission (not shown). The motor drive circuit 24 is capable of receiving the valve drive signal and controlling the motor 22. The fan drive module 30 may be a fan drive circuit capable of receiving a fan drive signal and controlling the speed of the fan 74 of the fan coil assembly 70 of the temperature control system in accordance with the fan drive signal.

The temperature sensor 40 is capable of detecting a temperature and generating a measured temperature. Preferably, a temperature sensor 40 is placed at the inlet of the fan coil assembly, i.e., the air inlet, to detect the actual temperature in the room. The control module 10 is a single chip or other processing equipment with a microprocessing function, and a data processing program is preset in the control module. The control module 10 is capable of receiving the measured temperature signal from the temperature sensor 40 and generating a valve driving signal and a fan driving signal by a data processing program and calculating predetermined parameters therein, thereby controlling the valve 72 and the fan 74 of the fan coil assembly 70.

In an exemplary embodiment, wireless module 50 is capable of wireless communication using one or more protocols, for example, wireless module 50 may be one or more of a WIFI module, a bluetooth module, or a short-range wireless communication module. The control module 10 can wirelessly communicate with an external device through the wireless module 50, thereby transmitting a measured temperature signal or receiving an external command to change preset parameters. WIFI module, bluetooth module and close range wireless communication module can be fine be applicable to the industrial control terminal who uses commonly, make things convenient for executor and external wireless communication. Here, the external device capable of communicating with the wireless module 50 may be, for example, a wireless terminal of a user, such as a mobile phone, a handheld industrial control device, or even an NFC card with a near field communication function.

In the illustrated embodiment, the actuator further includes a power module 60. The power module is respectively connected with the control module 10, the fan driving module 30 and the valve driving module 20 and provides electric energy.

The actuator of the temperature control system shown in fig. 1 integrates a valve driving module 20, a fan driving module 30, and a control module 10 capable of intelligently controlling the former two. The control module 10 is also capable of wirelessly communicating with an external device through the wireless module 50, so that a user can remotely control, i.e., remotely receive a real-time measured temperature signal or remotely send a command to change a preset parameter in the actuator by means of the control module 10. In contrast to conventional hvac systems, the actuator shown in fig. 1 can be located close to the fan coil assembly 70, for example also in the ceiling. By adopting the actuator arranged in this way, the temperature controller arranged on the indoor wall is saved, and meanwhile, the connecting and wiring between the fan coil assembly and the temperature controller is also saved, so that the raw material cost and the installation cost of the connecting and wiring are saved. The actuator shown in fig. 1 also includes a temperature sensor 40 connected to the control module 10. Since the actuator is typically located at the inlet and outlet of the coil 76 of the fan coil assembly 70, the temperature sensor 40 can be more flexibly located at the return air inlet in the fan coil assembly 70, thereby more accurately acquiring the measured temperature for more accurate temperature control.

In the exemplary embodiment, the control module 10 is capable of controlling the fan 74 to operate at three different speeds. The data processing program preset in the control module 10 can be further optimized, and the fan is controlled by the optimized logic algorithm, so that the user experience is improved.

In the exemplary embodiment, the preset parameters of the control module 10 include a set temperature, a fan speed, and a mode of operation. The set temperature is the temperature that the user wishes to reach. The control module 10 needs to receive the measured temperature signal generated by the temperature sensor 40 to obtain the difference between the actual temperature and the set temperature, and perform calculation by the data processing program, and the calculation result is used to comprehensively control the valve 72 and the fan 74 of the fan coil assembly 70 to keep the actual temperature consistent with the set temperature. In certain scenarios, such as the economy mode, the fan 74 in the fan-coil assembly 70 is required to rotate at a lower speed to achieve energy savings; while in, for example, the high efficiency mode, a higher speed of the fan 74 of the fan coil assembly 70 is required to achieve the effect of a fast temperature adjustment. The fan rotating speed in the preset parameters is used for forcibly controlling the fan rotating speed to reach a preset value. The working mode in the preset parameters is to artificially distinguish different scenes into different working modes, such as an economy mode, an efficient mode or a forced mode, so that a user can switch between different working modes simply and quickly.

The invention also provides a temperature control system. FIG. 2 is a schematic diagram of an exemplary embodiment of a temperature control system, and referring to FIG. 2, the temperature control system includes a fan coil assembly 70, a valve 72, an actuator as shown in FIG. 1, and a control terminal 80. The fan coil assembly 70 includes a fan 74 and a coil 76. The fan 74 is capable of blowing air in the direction of the arrows in the figure towards the coil 76. The valve 72 is disposed at one end of the coil 76, and as shown in the figure, the valve 72 is disposed at the outlet pipe of the coil 76, and in other exemplary embodiments, the valve 72 may be disposed at the inlet and outlet of the coil 76. The valve drive module 20 is capable of receiving a valve drive signal and driving the valve 72 in response to the valve drive signal, and the fan drive module 30 is capable of receiving a fan drive signal and controlling the fan 74 in response to the fan drive signal. In the exemplary embodiment, the control terminal 80 is preferably a mobile phone, but is not limited thereto, and may be other devices with wireless communication function, such as a notebook computer and a tablet computer, in other exemplary embodiments. Furthermore, the control terminal may also communicate with the actuator by, for example, bluetooth or near field communication. The control terminal 80 can wirelessly communicate with the control module 10 through an application program including a user interface, and the application program can display preset parameters and measured temperature of the control module 10 through the user interface, and can also modify the preset parameters of the control module 10 or switch an actuator by operating the user interface.

As shown in the temperature control system of FIG. 2, the actuator replaces a temperature controller in the existing temperature control system, thereby saving the cost generated by the temperature controller and the wiring thereof. Meanwhile, the actuator also comprises a temperature sensor connected with the control module. Because the actuator is typically located on the fan coil assembly, the temperature sensor can more accurately acquire the measured temperature to achieve more accurate temperature control.

In an exemplary embodiment, as shown in FIG. 2, the temperature sensor 40 is disposed at the return air inlet of the fan coil assembly 70. Therefore, the environment temperature can be acquired more accurately, and the temperature can be controlled more accurately.

In the exemplary embodiment, the application is a Web application, and the control terminal 80 can open the Web application by scanning the two-dimensional code, thereby enabling the control terminal 80 to directly access the application. The Web application may be an applet based on other common applications, such as a WeChat applet. The Web application program is adopted, so that the problems of complicated installation process, compatibility and the like of the traditional application program are solved, and the use of a temperature control system is facilitated.

In an exemplary embodiment, an application includes several user interfaces and is able to switch between the several user interfaces by operating on the user interfaces. Compare current temperature controller, the user can customize user interface according to temperature control system's application scene in a flexible way, has made things convenient for user operation, has promoted user experience.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above-listed detailed description of a series of possible embodiments of the present invention is merely a detailed description of the possible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications, such as combinations, divisions, or repetitions of features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims

1. Actuator for a temperature control system, wherein the temperature control system comprises a fan coil assembly (70) and a valve (72), the actuator being adapted to control the opening of the valve and thereby the flow of a medium through the fan coil assembly (70), characterized in that the actuator comprises:

a valve drive module (20) capable of receiving a valve drive signal and driving a valve (72) of the temperature control system in accordance with the valve drive signal, the valve drive module (20) comprising:

a motor (22) capable of driving the valve (72) to open or close; and

a motor drive circuit (24) capable of receiving said valve drive signal and controlling said motor (22);

a fan drive module (30) capable of receiving a fan drive signal and controlling a fan (74) in a fan coil assembly (70) of the temperature control system in accordance with the fan drive signal;

a temperature sensor (40) capable of detecting temperature and generating a measured temperature signal;

a control module (10) capable of receiving said measured temperature signal and generating said valve drive signal and said fan drive signal by calculation based on preset parameters therein; and

a wireless module (50), said control module (10) being capable of wirelessly communicating with an external device via said wireless module (50) and thereby transmitting said measured temperature or receiving an external command to modify said predetermined parameter.

2. The actuator of claim 1, wherein the control module (10) is configured to control the fan (74) to operate at three different speeds.

3. The actuator of claim 1, wherein the wireless module (50) is one or more of a WIFI module, a bluetooth module, or a Near Field Communication (NFC) module.

4. The actuator of claim 1, wherein the preset parameters of the control module (10) include set temperature, fan speed, and operating mode.

5. The actuator of claim 1, further comprising a power module (60) coupled to and providing power to said control module (10), said fan drive module (30), and said valve drive module (20), respectively.

6. Temperature control system, its characterized in that includes:

a fan coil assembly (70) including a fan (74) and a coil (76);

a valve (72) disposed at one end of said coil (76);

an actuator according to any one of claims 1 to 5, said valve drive module (20) being capable of receiving a valve drive signal and driving said valve (72) in response to said valve drive signal, said fan drive module (30) being capable of receiving a fan drive signal and controlling said fan (74) in response to said fan drive signal; and

a control terminal (80) capable of communicating wirelessly with said control module (10) via an application, said application including a user interface, said application being capable of displaying preset parameters of said control module (10) and said measured temperature via said user interface, and further capable of modifying preset parameters of said control module (10) or switching said actuator by operating said user interface.

7. The temperature control system of claim 6, wherein the temperature sensor (40) is disposed at an air return opening of the fan coil assembly (70).

8. The temperature control system of claim 6, wherein the application is a Web application, and the control terminal (80) is capable of opening the Web application by scanning a two-dimensional code.

9. The temperature control system of claim 6, wherein said application includes a plurality of said user interfaces and is switchable between the plurality of user interfaces by operating said user interfaces.

10. Temperature control system according to claim 6, characterized in that the control terminal (80) is a mobile phone.