Electric control system and heating and ventilation device

Abstract

The present application discloses an electric control system and a heating and ventilation device. The electric control system comprises an electric control box, an anomaly monitoring module and an air control module. The anomaly monitoring module is configured to sense the state of the electric control box and generate a state parameter, the state parameter comprising at least one of a temperature parameter, a refrigerant leakage amount parameter and a device operation parameter; the air control module is arranged at an air guide duct, and the air control module has an on state in which airflow can pass through the air guide duct and an off state in which the airflow is blocked from passing through the air guide duct. The air control module is switched to the on state or the off state on the basis of a comparison result between the state parameter and a preset parameter threshold. By comprehensively considering the temperature state and refrigerant amount state at the electric control box and the state of the heating and ventilation device, both the heat dissipation requirement and the combustion and explosion-proofing requirement of the electric control box can be considered.

Description

Electric control system and HVAC equipment

[0001] Related applications

[0002] This application claims the priority of the following Chinese patent applications:

[0003] The application number for the application filed on August 4, 2023 is 202310985192.5, and the title is “An electric control system and HVAC equipment”;

[0004] The above patent is hereby incorporated by reference in its entirety. Technical Field

[0005] The present application relates to the technical field of HVAC equipment, and in particular to an electric control system and HVAC equipment. Background Art

[0006] Refrigerant, also known as refrigerant, is the working medium in the refrigeration cycle. It transfers heat through its phase change, absorbing heat when vaporizing in the evaporator and releasing heat when condensing in the condenser. Currently, over 80 substances can be used as refrigerants. With the completion of the implementation details of the Paris Agreement at the United Nations Climate Conference, the development of low-GWP (Global Warming Potential) refrigerants in the HVAC industry has accelerated. However, since most low-GWP refrigerants, such as R32 and R290, are flammable, leaks pose a safety hazard of explosion. For safety reasons, regulations have imposed strict limits on the refrigerant charge in equipment.

[0007] Among them, refrigerant used in HVAC equipment leaks into the electrical control box, which contains electronic components that are prone to heat, posing a risk of detonating the refrigerant. If the electrical control box is sealed to prevent refrigerant from entering, there will be no airflow inside, resulting in poor heat dissipation and affecting its operational stability.

[0008] Summary of the Invention

[0009] The embodiments of the present application provide an electric control system and HVAC equipment, which can solve the problem of how to improve the safety of the electric control box.

[0010] In a first aspect, an embodiment of the present application provides an electric control system, the electric control system including an electric control box, an abnormality monitoring module and a wind control module;

[0011] The electric control box includes a shell having an air guide duct; the electric control box is installed in the inner space of the shell of the HVAC equipment;

[0012] The abnormality monitoring module is configured to sense the state of the electric control box and generate a state parameter, wherein the state parameter includes at least one of a temperature parameter, a refrigerant leakage parameter, and an equipment operation parameter; and

[0013] The wind control module is arranged at the guide air duct, and the wind control module has an open state that allows airflow to pass through the guide air duct and a closed state that blocks airflow from passing through the guide air duct; wherein, the wind control module switches to the open state or the closed state according to the comparison result of the state parameter and the preset parameter threshold.

[0014] In some exemplary embodiments, the abnormality monitoring module is disposed in the internal space of the shell; or, the abnormality monitoring module is disposed on the outer surface of the shell; or; the abnormality monitoring module is disposed in the internal space of the outer shell of the HVAC equipment.

[0015] In some exemplary embodiments, the abnormality monitoring module includes a temperature sensor configured to sense the temperature state of the electric control box and generate the temperature parameter; and / or,

[0016] The abnormality monitoring module includes a refrigerant sensor, which is configured to sense the refrigerant state at the electric control box and generate the refrigerant leakage parameter.

[0017] In some exemplary embodiments, the abnormality monitoring module includes a control chip, and the control chip obtains the equipment operating parameters according to the unit parameters of the HVAC equipment;

[0018] The electric control box includes an electric control board arranged in the inner space of the shell, and the control chip is arranged in the electric control board; or, the control chip is arranged in the mobile terminal.

[0019] In some exemplary embodiments, the guide air duct has an air outlet, which is opened on the shell; the wind control module includes a drive component and a wind shield, and the drive component adjusts the position of the wind shield relative to the air outlet according to the state parameters to adjust the flow rate of the airflow passing through the guide air duct.

[0020] In some exemplary embodiments, the drive assembly includes a first magnetic portion and a second magnetic portion;

[0021] One of the first magnetic portion and the second magnetic portion is provided on the housing, and the other is provided on the windshield portion; or, the first magnetic portion is provided on the housing, and the windshield portion forms the second magnetic portion;

[0022] At least one of the first magnetic part and the second magnetic part has electromagnetic properties, and the first magnetic part and the second magnetic part adjust the magnetic flux according to the state parameter to regulate the distance between the first magnetic part and the second magnetic part, thereby adjusting the position of the wind shield relative to the air outlet.

[0023] In some exemplary embodiments, the driving component is a fan of the HVAC equipment, and the fan adjusts the wind speed according to the state parameter to generate an air pressure difference on both sides of the wind shield to regulate the position of the wind shield relative to the air outlet.

[0024] In some exemplary embodiments, the drive component is a linear drive component, which acts on the wind shield along a preset direction according to the state parameter to adjust the position of the wind shield relative to the air outlet; the wind shield is a windshield or a shutter.

[0025] In some exemplary embodiments, the electronic control system further includes:

[0026] A control module is connected to the abnormality monitoring module signal to receive the state parameter and compare the state parameter with the preset parameter threshold; the control module is also connected to the wind control module signal and controls the wind control module to the open state or the closed state according to the comparison result of the state parameter and the preset parameter threshold.

[0027] In some exemplary embodiments, the electric control box includes an electric control board disposed in the inner space of the shell, and the control module is disposed on the electric control board; or, the control module is disposed on the mobile terminal.

[0028] In a second aspect, an embodiment of the present application provides a HVAC device, including the electric control system as described above, wherein the HVAC device includes at least one of an air conditioner, a multi-split unit, a heat pump, and a water heater.

[0029] The electronic control system of the present embodiment comprehensively considers the status of the electrical control box and HVAC equipment, and uses these status parameters to control the air control module's on / off state, thereby improving the safety and stability of the electrical control box. Specifically, by taking into account the temperature and refrigerant flow at the electrical control box, it is possible to balance the electrical control box's heat dissipation requirements with its explosion prevention requirements, allowing for timely control of the air control module's on / off state to dissipate heat from the electrical control box, and also to facilitate timely control of the air control module's off / on state to maintain a sealed interior for explosion prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0031] FIG1 is a schematic diagram of an electronic control system according to an embodiment of the present application;

[0032] FIG2 is a schematic diagram of the main structure of a HVAC device according to an embodiment of the present application;

[0033] FIG3 is a schematic structural diagram of a wind control module in an embodiment of the present application in an open state;

[0034] FIG4 is a schematic structural diagram of a wind control module in a closed state according to an embodiment of the present application;

[0035] FIG5 is a schematic structural diagram of a wind control module in an open state according to another embodiment of the present application.

[0036] Reference numerals:

[0037] 10. Electronic control system;

[0038] 100, electric control box; 110, housing; 111, air duct; 112, air outlet; 130, electric control device; 131, electric control board;

[0039] 200, abnormality monitoring module; 210, temperature sensor; 220, refrigerant sensor; 230, control chip;

[0040] 300, wind control module; 310, drive assembly; 311, first magnetic portion; 312, second magnetic portion; 320, wind shield; 313, linear drive assembly;

[0041] 400, control module;

[0042] 20. HVAC equipment; 21. Fan; 22. Housing; 23. Functional components. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0044] The inventors have discovered that refrigerant leaking into the electrical control box of HVAC equipment, which contains electronic components and generates heat, poses a risk of detonating the refrigerant. If the electrical control box is sealed to prevent refrigerant from entering, there will be no airflow inside, resulting in poor heat dissipation and impacting operational stability. Based on this, the present invention provides an electrical control system and HVAC equipment.

[0045] As shown in FIG1 , which is an architecture diagram of an electric control system 10 according to an embodiment of the present application, the electric control system 10 includes an electric control box 100 , an abnormality monitoring module 200 and a wind control module 300 .

[0046] As shown in Figure 2, the electrical control box 100 is installed in the internal space of the shell 22 of the HVAC equipment 20. For example, the internal space of the shell 22 of the HVAC equipment 20 includes an air cavity for accommodating the fan 21, and the electrical control box 100 is accommodated in the air cavity. Of course, the internal space of the shell 22 of the HVAC equipment 20 also includes other areas for accommodating other functional components 23, and the various areas are interconnected or spaced apart. The embodiment of the present application does not limit the connectivity status of the various areas of the internal space of the shell 22 of the HVAC equipment 20, and does not limit the installation position of the various functional components 23 installed in the internal space of the shell 22 of the HVAC equipment 20. The specific selection can be made according to actual needs.

[0047] As shown in Figures 3 to 5, the electrical control box 100 includes a housing 110, which is mounted on a support member of the HVAC equipment 20. For example, the support member includes the outer shell 22 of the HVAC equipment 20, a plate or a frame disposed within the interior of the outer shell 22, and the like. Housing 110 has an air duct 111 for gas circulation. The flow of gas through air duct 111 prevents the accumulation of flammable materials in the electrical control box 100, allowing for the timely dispersal of flammable materials and reducing safety hazards.

[0048] The housing 110 of the electric control box 100 has a housing cavity, wherein a portion of the housing cavity forms a guide air duct 111, and the remaining portion forms an installation area. The electric control box 100 also includes a plurality of electric control components 130, and the plurality of electric control components 130 can all be arranged in the installation area; or, a portion of the electric control components 130 can be arranged in the installation area, and another portion of the electric control components 130 can be arranged in the guide air duct 111. When the electric control components 130 are arranged in the guide air duct 111, the gas flowing through the guide air duct 111 can remove the heat from the electric control components 130 arranged in the guide air duct 111, thereby reducing the temperature of the electric control box 100, allowing the electric control components 130 of the electric control box 100 to operate stably, and at the same time, reducing the risk of combustible materials in the electric control box 100 from igniting or exploding.

[0049] The guide air duct 111 can be connected to the installation area. When the gas flows through the guide air duct 111, it can also drive the flow of gas in the installation area, so that the area where the gas in the accommodating cavity flows is larger, which facilitates more efficient heat dissipation and more efficient dispersal of combustible materials.

[0050] The abnormality monitoring module 200 is configured to sense the state of the electric control box 100 and generate state parameters, which include at least one of a temperature parameter, a refrigerant leakage parameter, and an equipment operating parameter. Specifically, the state of the electric control box 100 sensed by the abnormality monitoring module 200 includes the temperature state of the electric control box 100, the refrigerant state of the electric control box 100, and the operating state of the HVAC equipment 20 located at the electric control box 100. Correspondingly, the abnormality monitoring module 200 generates the temperature parameter based on the temperature state of the electric control box 100, generates the refrigerant leakage parameter based on the refrigerant state of the electric control box 100, and generates the equipment operating parameter based on the operating state of the HVAC equipment 20.

[0051] The air control module 300 is provided at the guide air duct 111, and the air control module 300 has an open state that allows airflow to pass through the guide air duct 111, and a closed state that blocks airflow from passing through the guide air duct 111. FIG3 is a schematic diagram of the structure of the air control module 300 in the open state, and FIG4 is a schematic diagram of the structure of the air control module 300 in the closed state. The air control module 300 switches to the open state or the closed state based on the comparison result of the state parameter and the preset parameter threshold. The preset parameter threshold includes a preset temperature threshold corresponding to the temperature parameter, a preset refrigerant threshold corresponding to the refrigerant leakage parameter, and a preset control threshold corresponding to the equipment operation parameter.

[0052] Among them, the situations in which the risk control module 300 is switched to the on state or the off state according to the comparison result of a single state parameter and the corresponding preset parameter threshold include the following three situations:

[0053] Case 1: When the temperature parameter is greater than or equal to the preset temperature threshold, the wind control module 300 is in the on state; when the temperature parameter is less than the preset temperature threshold, the wind control module 300 can be in the on state or the off state.

[0054] Case 2: When the refrigerant leakage parameter is greater than or equal to the preset refrigerant threshold, the wind control module 300 is in the closed state; when the refrigerant leakage parameter is less than the preset refrigerant threshold, the wind control module 300 can be in the open state or the closed state.

[0055] Case 3: When the device operating parameter is greater than or equal to the preset control threshold, the wind control module 300 is in the closed state; when the device operating parameter is less than the preset control threshold, the wind control module 300 can be in the open state or the closed state.

[0056] In the above-mentioned situations 1-3, when any one of the three parameters, namely, the temperature parameter, the refrigerant leakage parameter, and the equipment operation parameter, reaches a value that requires switching the air control module 300 to the off state, the air control module 300 is directly switched to the off state, so that the accommodating chamber of the electric control box 100 is in a closed state, protecting the electric control device 130 inside the electric control box 100, and preventing the leaked refrigerant from entering the accommodating chamber and causing an explosion. When none of the three parameters, namely, the temperature parameter, the refrigerant leakage parameter, and the equipment operation parameter, reaches a value that requires switching the air control module 300 to the off state, the air control module 300 can be set to the off state or the on state as required. For example, setting the air control module 300 directly to the on state to dissipate heat helps to improve the stability of the operation of the electric control device 130 inside the electric control box 100.

[0057] The electric control system 10 of the present embodiment comprehensively considers the status of the electric control box 100 and the HVAC equipment 20, and uses the status parameters of the electric control box 100 and the HVAC equipment 20 to control the air control module 300 to be in an off state or an on state, thereby improving the safety and stability of the use of the electric control box 100. Specifically, by taking into account the temperature and refrigerant quantity at the electric control box 100, it is possible to balance the heat dissipation requirements and the flame retardant prevention requirements of the electric control box 100, thereby facilitating the timely adjustment of the air control module 300 to the on state to dissipate heat from the electric control box 100, and to facilitate the timely adjustment of the air control module 300 to the off state to seal the interior of the electric control box 100 to prevent flame retardancy.

[0058] In the implementation of this application, the abnormality monitoring module 200 can monitor the status of the electrical control box 100 by sensing. At this time, the abnormality monitoring module 200 can be set at a position adjacent to the electrical control box 100; or, the abnormality monitoring module 200 can be set in the electrical control box 100, so that the abnormality monitoring module 200 can obtain the status of the electrical control box 100 more promptly and accurately, so as to timely adjust the wind control module 300 to an open state or a closed state.

[0059] Optionally, the abnormality monitoring module 200 is disposed in the interior space of the housing 110 of the electric control box 100, for example, the abnormality monitoring module 200 is mounted on the inner surface of the housing 110 of the electric control box 100; or, the abnormality monitoring module 200 is mounted on the electronic control device 130 of the electric control box 100. Optionally, the abnormality monitoring module 200 is disposed on the outer surface of the housing 110 of the electric control box 100. Optionally, the abnormality monitoring module 200 is arranged in the internal space of the shell 22 of the HVAC equipment 20 (specifically, the space defined by the inner surface of the shell 22 of the HVAC equipment 20 and the outer surface of the shell 110 of the electrical control box 100). For example, the abnormality monitoring module 200 is arranged on the inner surface of the shell 22 of the HVAC equipment 20 and is arranged adjacent to the electrical control box 100; or, the abnormality monitoring module 200 is arranged on the functional component 23 of the HVAC equipment 20 adjacent to the electrical control box 100; or, the abnormality monitoring module 200 is arranged on the functional component 23 of the HVAC equipment 20 that is prone to heat; or, the abnormality monitoring module 200 is arranged on the functional component 23 of the HVAC equipment 20 that has refrigerant.

[0060] Optionally, when the abnormality monitoring module 200 can monitor the status of the electric control box 100 by sensing, the abnormality monitoring module 200 includes at least one of a temperature sensor 210 and a refrigerant sensor 220. The temperature sensor 210 is configured to sense the temperature status of the electric control box 100 and generate a temperature parameter, and the refrigerant sensor 220 is configured to sense the refrigerant status of the electric control box 100 and generate a refrigerant leakage parameter. Furthermore, there are multiple temperature sensors 210 and multiple refrigerant sensors 220. The multiple temperature sensors 210 and the multiple refrigerant sensors 220 are respectively disposed in the interior space of the housing 110 of the electric control box 100, the outer surface of the housing 110 of the electric control box 100, and the interior space of the housing 22 of the HVAC equipment 20. The embodiment of the present application does not limit the number and installation location of the multiple temperature sensors 210 and the multiple refrigerant sensors 220, and can be selected according to actual needs.

[0061] In the implementation of this application, the abnormality monitoring module 200 can indirectly monitor the status of the electric control box 100 by obtaining the unit parameters of the HVAC equipment 20. Optionally, the abnormality monitoring module 200 includes a control chip 230, which is configured to obtain equipment operating parameters based on the unit parameters of the HVAC equipment 20. For example, the unit parameters include at least one of the parameters such as the operating time parameter of the HVAC equipment 20, the day and night time parameter of the HVAC equipment 20, the ambient temperature parameter of the HVAC equipment 20, and the ambient humidity parameter of the HVAC equipment 20. The unit parameters of the HVAC equipment 20 can be collected by sensors installed at various locations in the HVAC equipment 20, and the sensors at various locations transmit the collected data to the control chip 230. The control chip 230 can directly use the unit parameters of the HVAC equipment 20 as the equipment operating parameters, or the control chip 230 can also obtain the equipment operating parameters based on the unit parameters of the HVAC equipment 20 and in combination with a preset algorithm.

[0062] The electric control device 130 of the electric control box 100 includes an electric control board 131 disposed in the inner space of the housing 110 . Optionally, the control chip 230 is disposed in the electric control board 131 ; or, the control chip 230 is disposed in the mobile terminal.

[0063] The electronic control system 10 further includes a control module 400, which is signal-connected to the abnormality monitoring module 200 to receive status parameters and compare them with preset parameter thresholds. The control module 400 is also signal-connected to the risk control module 300 and controls the risk control module 300 to be on or off based on the comparison result of the status parameters with the preset parameter thresholds.

[0064] Optionally, the control module 400 is provided in the electric control board 131; or, the control module 400 is provided in a mobile terminal, for example, the mobile terminal includes a remote control, a mobile phone, a tablet computer, a smart bracelet, etc.

[0065] When the abnormality monitoring module 200 includes a control chip 230, optionally, the control module 400 can be integrated into the control chip 230. For example, the control chip 230 includes a data processing unit, a control unit and a storage unit. The data processing unit forms the abnormality monitoring module 200 for obtaining status parameters, the control unit forms the control module 400 for controlling the wind control module 300 to be in an on or off state, and the storage unit is used to store preset parameter thresholds.

[0066] In the embodiment of the present application, the guide air duct 111 has an air port 112, which is provided in the housing 110. Gas enters and exits the guide air duct 111 through the air port 112. Optionally, the guide air duct 111 has multiple air ports 112 to increase the flow rate of gas flowing through the guide air duct 111. For example, the guide air duct 111 has two air ports 112, three air ports 112, four air ports 112, etc.

[0067] For example, the guide air duct 111 of the embodiment of the present application has two air vents 112, one of which is an air inlet and the other is an air outlet. Gas enters the guide air duct 111 from the air inlet and flows out of the guide air duct 111 from the air outlet to form a smooth airflow direction. As shown in Figures 3 and 5, they are schematic diagrams of airflow entering the guide air duct 111 from one of the air vents 112 and flowing out of the guide air duct 111 from the other air vent 112. The directions indicated by the arrows in Figures 3 and 5 are the airflow directions. Furthermore, air vents 112 are provided on two opposite side walls of the housing 110 of the electrical control box 100. For example, when the electrical control box 100 is installed on the HVAC equipment 20, air vents 112 are provided on two opposite side walls in the horizontal direction; or, air vents 112 are provided on two opposite surfaces in the vertical direction.

[0068] The air control module 300 includes a drive assembly and a windshield 320. The drive assembly adjusts the position of the windshield 320 relative to the air outlet 112 based on state parameters to regulate the flow of air through the guide air duct 111. If there are multiple air outlets 112, a windshield 320 is provided at each air outlet 112, so that each air outlet 112 can be enclosed by the windshield 320, thereby maintaining a closed state within the housing 110 of the electrical control box 100. Furthermore, each windshield 320 is provided for at least one air outlet 112. For example, the same windshield 320 can be provided for two air outlets 112 simultaneously to regulate the flow at both air outlets 112.

[0069] The windshield 320 can cover the corresponding air vents 112 and seal the corresponding air vents 112 when the windshield 320 abuts against the wall of the electric control box 100. Optionally, the windshield 320 is rotatably mounted on the housing 110 of the electric control box 100. For example, one end of the windshield 320 is hinged to the electric control box 100, while the other end is free. Alternatively, the windshield 320 includes a windshield main plate and a rotating shaft, which is mounted in the middle of the windshield main plate and rotatably mounted on the housing 110 of the electric control box 100.

[0070] In the embodiment of the present application, the position of the wind shield 320 relative to the air outlet 112 includes multiple types, among which, when the wind shield 320 at each location closes the corresponding air outlet 112 to block the gas from entering and exiting the air guide channel 111, the wind control module 300 is in a closed state; when at least a portion of the wind shield 320 at at least one location is spaced apart from the shell 110 of the electrical control box 100 at the corresponding air outlet 112, so that the gas can enter and exit the air guide channel 111, the wind control module 300 is in an open state.

[0071] Optionally, the drive assembly is an electromagnetic drive assembly to control the flow rate of the air guide channel 111. Specifically, the drive assembly includes a first magnetic part and a second magnetic part, wherein one of the first magnetic part and the second magnetic part is provided on the shell 110 and the other is provided on the wind shield 320; or, the first magnetic part is provided on the shell 110, and the wind shield 320 forms the second magnetic part, and at least one of the first magnetic part and the second magnetic part has electromagnetic properties. The control module 400 regulates the magnetic flux between the first magnetic part and the second magnetic part according to the state parameter to regulate the distance between the first magnetic part and the second magnetic part, and then adjusts the position of the wind shield 320 relative to the air outlet 112. By adopting the magnetic attraction method, when the wind shield 320 closes the air outlet 112, the magnetic adsorption force of the first magnetic part and the second magnetic part can improve the sealing at the air outlet 112.

[0072] Optionally, the driving component is the fan 21 of the HVAC equipment 20, and the fan 21 adjusts the wind speed of the fan 21 according to the state parameters, so that an air pressure difference is generated on both sides of the wind shield 320, so as to regulate the position of the wind shield 320 relative to the air outlet 112, and further regulate the flow at the air outlet 112. At this time, the two opposite side walls of the electric control box 100 can be provided with air outlets 112. For example, the electric control box 100 has two air outlets 112, one of which is an air inlet and the other is an air outlet. A wind shield 320 is provided at the air inlet and the other at the air outlet, and each wind shield 320 is installed in a manner in which one end is hinged to the shell 110 of the electric control box 100 and the other end is free. When the fan 21 is in the electric control box 100, the air outlet 112 is provided at the air inlet. When the air outlet is sucking air from the electrical control box 100, or when the fan 21 is pushing air toward the electrical control box 100 on the side of the air inlet of the electrical control box 100, as shown in FIG3 , the wind shield 320 at the air inlet and the wind shield 320 at the air outlet both rotate toward the same side. Specifically, the free end of the wind shield 320 at the air inlet rotates into the air guide channel 111, and the free end of the wind shield 320 at the air outlet rotates to the space outside the electrical control box 100. When the fan 21 stops sucking or pushing air into the electrical control box 100, the wind shield 320 can fall under the action of gravity and close the corresponding air outlet 112, thereby sealing the air guide channel 111.

[0073] Optionally, the drive assembly is a linear drive assembly, and the control module 400 controls the linear drive assembly to act on the windshield 320 in a preset direction based on the state parameter to adjust the position of the windshield 320 relative to the air outlet 112. The windshield 320 is a windshield or a shutter. The preset direction may include a first preset direction and a second preset direction, wherein the first preset direction is the direction of the opening 112 of the air outlet 112, and the second preset direction is perpendicular to the direction of the opening 112 of the air outlet 112.

[0074] When the wind shield 320 is a wind shield 320, the linear drive assembly pushes and pulls the wind shield 320 along a first preset direction to adjust the position of the wind shield 320 relative to the air outlet 112; when the wind shield 320 is a Venetian blind, the Venetian blind includes a plurality of rotatable blades, and the linear drive assembly acts on the blades of the Venetian blind to cause each blade of the Venetian blind to rotate around a second preset direction to adjust the position of the wind shield 320 relative to the air outlet 112.

[0075] The embodiment of the present application further provides a HVAC device 20, comprising the electrical control system 10 as described above. The HVAC device 20 further comprises a housing 22, and an electrical control box 100 of the electrical control system 10 is installed in the interior space of the housing 22. For example, the housing 22 has an installation cavity. The HVAC device 20 further comprises a fan 21 and other functional components 23. The fan 21, other functional components 23, and the electrical control box 100 are all accommodated in the installation cavity and installed in the housing 22. Furthermore, the installation cavity includes an air cavity, and the fan 21 and the electrical control box 100 are accommodated in the air cavity.

[0076] Among them, the HVAC equipment 20 of the embodiment of the present application includes at least one of the equipment used for heating or cooling, such as air conditioners, multi-split units, heat pumps, and water heaters.

[0077] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An electronic control system, wherein: include: The electric control box comprises a shell, wherein the shell has an air guide duct; The electric control box is installed in the inner space of the housing of the HVAC equipment; an abnormality monitoring module, configured to sense the state of the electric control box and generate a state parameter, wherein the state parameter includes at least one of a temperature parameter, a refrigerant leakage parameter, and an equipment operation parameter; and A wind control module is arranged at the guide air duct, and the wind control module has an open state that allows airflow to pass through the guide air duct, and a closed state that blocks airflow from passing through the guide air duct; wherein the wind control module switches to the open state or the closed state according to the comparison result of the state parameter with the preset parameter threshold.

2. The electronic control system according to claim 1, wherein: The abnormality monitoring module is arranged in the inner space of the housing; or, The abnormality monitoring module is arranged on the outer surface of the housing; or; The abnormality monitoring module is arranged in the inner space of the shell of the HVAC equipment.

3. The electronic control system according to claim 2, wherein: The abnormality monitoring module includes a temperature sensor, and the temperature sensor is configured to sense the temperature state of the electric control box and generate the temperature parameter; and / or, The abnormality monitoring module includes a refrigerant sensor, and the refrigerant sensor is configured to sense the refrigerant state at the electric control box and generate the refrigerant leakage parameter.

4. The electronic control system according to claim 1, wherein: The abnormality monitoring module includes a control chip, and the control chip obtains the equipment operation parameters according to the unit parameters of the HVAC equipment; The electric control box includes an electric control board arranged in the inner space of the shell, and the control chip is arranged in the Electric control board; or, the control chip is arranged in the mobile terminal.

5. The electronic control system according to claim 1, wherein: The guide air duct has an air outlet, which is opened in the shell; the wind control module includes a driving component and a wind shield, and the driving component adjusts the position of the wind shield relative to the air outlet according to the state parameter to adjust the flow rate of the airflow passing through the guide air duct.

6. The electronic control system according to claim 5, wherein: The drive assembly includes a first magnetic portion and a second magnetic portion; One of the first magnetic part and the second magnetic part is arranged on the shell, and the other is arranged on the wind shielding part; or, the first magnetic part is arranged on the shell, and the wind shielding part forms the second magnetic part; At least one of the first magnetic part and the second magnetic part has electromagnetic properties, and the first magnetic part and the second magnetic part adjust the magnetic flux according to the state parameter to regulate the distance between the first magnetic part and the second magnetic part, thereby adjusting the position of the wind shield part relative to the air outlet.

7. The electronic control system according to claim 5, wherein: The driving component is a fan of the HVAC equipment, and the fan adjusts the wind speed according to the state parameter to generate an air pressure difference on both sides of the wind shield to regulate the position of the wind shield relative to the air outlet.

8. The electronic control system according to claim 5, wherein: The driving component is a linear driving component, and the linear driving component acts on the wind shield along a preset direction according to the state parameter to adjust the position of the wind shield relative to the air outlet; the wind shield is a windshield or a shutter.

9. The electronic control system according to claim 1, wherein: The electronic control system further comprises: A control module is connected to the abnormal monitoring module signal to receive the state parameter and compare the state parameter with the preset parameter threshold; the control module is also connected to the wind control module signal, and controls the wind control module to the open state or the closed state according to the comparison result of the state parameter and the preset parameter threshold.

10. The electronic control system according to claim 9, wherein: The electric control box includes an electric control board arranged in the inner space of the shell, and the control module is arranged on the electric control board; or, The control module is arranged in the mobile terminal.

11. A heating and ventilation equipment, wherein: The invention comprises an electronic control system as claimed in any one of claims 1 to 10.

Images