Controllable ventilation system using power line communication

Abstract

According to the ventilation device capable of being controlled through power line communication, the problems that a ventilation system is low in energy efficiency and complex in installation can be solved, the problem of energy waste caused by the fact that independent communication wiring is needed in an existing ventilation system is solved, and the problem that the ventilation condition of each space is difficult to control independently is solved. In addition, the multiple ventilation units are controlled through power line communication, installation is simplified, the energy efficiency is improved to the maximum extent, and flexible control is achieved to meet the ventilation requirements of different spaces. On the other hand, the sliding wall moves in a gap control portion of the ventilation device, and the ventilation device can be controlled through power line communication, so that air tightness is improved, and ventilation power is improved.

Description

Technical Field

[0001] This invention relates to a ventilation device using power line communication, and more specifically, to a system that can control multiple ventilation devices via power line communication. This system transmits and receives communication signals via power lines, controlling the ventilation devices without the need for separate communication cabling, and can be applied to ventilation systems capable of effectively managing airflow within a space. Background Technology

[0002] Generally, large buildings, factories, and buildings with multiple independent spaces are equipped with ventilation systems to circulate air. These systems provide central control to ventilate each space, and they often continue to run even when a particular space is empty or unnecessary, which can lead to energy waste.

[0003] In recent years, individual ventilation units have been installed in each space, and users have developed ventilation supply or automation systems to regulate the ventilation supply to each space. However, these systems are often difficult to maintain due to the need for separate communication cabling or complex installation, and operators must operate them directly.

[0004] This invention provides a ventilation device based on power line communication, which can control multiple ventilation devices via communication over power lines, thus solving this problem. This eliminates the need for separate communication wiring to control the ventilation system, aiming to improve energy efficiency by enabling fluid air circulation management in each space.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Korean 1020200043626

[0008] Patent Document 2: Korean 1020200034689

[0009] Patent Document 3: Korean 2020000001113

[0010] Patent Document 4: Korean 1020060006418 Summary of the Invention

[0011] The problem that the invention aims to solve

[0012] This invention aims to solve the aforementioned problems, specifically addressing the low energy efficiency and complex installation of ventilation systems. Existing ventilation systems require separate communication cabling and make it difficult to individually control the ventilation status of each space, potentially leading to energy waste. This invention controls multiple ventilation units via power line communication, simplifying installation, maximizing energy efficiency, and enabling flexible control to meet the ventilation requirements of each space.

[0013] Methods for solving problems

[0014] The present invention relates to a ventilation device capable of being controlled using power line communication. Data communication is performed via power lines. A power line communication module is used to send and receive signals to and from various components within the ventilation device. A control module is used to transmit ventilation conditions input according to operator instructions via the power line communication module. An indoor ventilation module is used to adjust airflow based on signals received from the power line communication module. An external ventilation module is used to introduce outdoor air into the room or exhaust indoor air to the outside based on signals received from the power line communication module. The device also includes an indoor air sensor module for measuring temperature, humidity, and air quality, and transmitting the measured values ​​to the control module.

[0015] Next, the indoor ventilation module is characterized by including a gap control unit, which improves airtightness by blocking the passageway that connects air to other spaces in the ventilation space.

[0016] Next, the gap control unit includes a spatial partition wall that divides any space into two chambers, a central tunnel formed by the spatial partition wall, and an air circulation wall inserted into the central tunnel that divides the space into four chambers. The air circulation wall is inserted perpendicular to the spatial partition wall. A predetermined space is provided inside the air circulation wall along the X direction. The gap control part also includes air circulation nozzles provided on the outside of the air circulation wall, which are equally spaced along the X direction. The air circulation nozzles are arranged in pairs on the outside of the air circulation wall. The gap control part includes a slide rail installed on the lower surface of the space provided inside the air circulation wall. A sliding wall is provided in the space provided inside the air circulation wall in a manner that moves back and forth along the slide rail in the X direction. The sensor module includes a... Switches are located at both ends of the X-direction within the internal space of the air circulation wall. The air circulation nozzles open and close as the sliding wall moves. Each of the four chambers is equipped with an indoor ventilation module, including an indoor fan embedded in the ceiling. The external ventilation module is embedded in the space-separating walls and installed through multiple layers within the building. The indoor ventilation module also includes a central connecting channel, which transfers the air inlet from the indoor fan to the central vertical pipe. The external ventilation module is located on one side of the central vertical pipe and also includes a negative pressure chamber to provide negative pressure so that the air drawn in from the room fan is diverted. The switches are operated by contacting the sliding wall, but also provide a signal to the control module to activate the negative pressure chamber. Simultaneously, the air circulation nozzles between the four chambers provide signals to the control module to operate the room fans in the chambers closed by the sliding wall.

[0017] Next, the four chambers are defined as the first chamber, the second chamber, the third chamber, and the fourth chamber. The sliding wall is divided into a first wall, a second wall, and a third wall arranged in parallel. The sliding rail consists of three parallel tracks for each of the first, second, and third walls, reciprocating along the X direction. The second wall is placed on the central track, with the first and third walls placed on either side of the second wall. As the first and third walls move, the air circulation nozzles open and close. The first and third walls are made of high-density polycarbonate material and are configured to be visible between the opposing chambers. The second wall is composed of EPDM rubber sheet. The switching part includes a connection with the first... A first switch in contact with a wall, a second switch in contact with a second wall, and a third switch in contact with a third wall. If only the first switch is operated in the switching components, the room fan of the first chamber is operated, but a signal is provided to the control module to make it operate at a first-level intensity. If the first switch and the second switch are operated simultaneously in the switching components, when the room fan of the first chamber is operating, but a signal is provided to the control module to make it operate at a second-level intensity, and when the first switch, the second switch, and the third switch are operated simultaneously, the room fans of the first chamber and the fourth chamber operate simultaneously in the switching components, but the characteristic is that a signal is provided to the control module to make it operate at a third-level intensity.

[0018] Next, an indoor channel extending along the X direction is formed on the inner side of the first and third walls, communicating with the air circulation nozzle. Through this indoor channel, the second, third, and fourth chambers are connected even when the first and second chambers are sealed. The first and third switches are identical in form, but each is inserted into one end of the first and third walls, with a groove of a specific size. Operation is performed by inserting the end into the first and third walls, respectively. The second switch is identical to the first switch. The thickness of the second wall is twice that of the first wall, and protrusions of a predetermined length are provided at both ends of the second wall. The thickness of these protrusions is the same as that of the first wall. The sum of the lengths of the two protrusions on both sides of the second wall is equal to the length of the first wall.

[0019] Invention Effects

[0020] The ventilation device controlled by power line communication used in this invention can solve the problems of low energy efficiency and complex installation of ventilation systems. It also solves the problem of energy waste caused by the need for separate communication wiring in existing ventilation systems, as well as the difficulty in controlling the ventilation conditions of each space individually.

[0021] Furthermore, this invention controls multiple ventilation units via power line communication, simplifying installation, maximizing energy efficiency, and enabling flexible control to meet the ventilation requirements of different spaces.

[0022] On the other hand, the sliding wall moves in the gap control section of the ventilation device, which can be controlled by power line communication to improve airtightness and thus increase ventilation power. Attached Figure Description

[0023] Figure 1 This is a block diagram of a ventilation system that can be controlled using power line communication according to the present invention.

[0024] Figure 2 This is a conceptual diagram of a ventilation device that can be controlled using power line communication according to the present invention.

[0025] Figure 3 yes Figure 2 Examples of implementations.

[0026] Figure 4 Showing Figure 3 The state where the first switch is activated.

[0027] Figure 5 Showing Figure 3 The state where the first and second switches are activated.

[0028] Figure 6 Showing Figure 3 The state in which the first, second, and third switches are activated.

[0029] 11: First cavity

[0030] 12: Second cavity

[0031] 13: Third cavity

[0032] 14: Fourth cavity

[0033] 100: Power line communication module

[0034] 110: First barrel

[0035] 120: Second Whole Body

[0036] 130: Third barrel

[0037] 140: Fourth barrel

[0038] 200: Control Module

[0039] 300: Indoor ventilation module

[0040] 310: Indoor fan

[0041] 320: Central Passage

[0042] 400: External ventilation module

[0043] 410: Central vertical pipe

[0044] 420: Negative Pressure Chamber

[0045] 500: Sensor Module

[0046] 510: Switch section

[0047] 511: The first switch

[0048] 512: The second switch

[0049] 513: The 3rd switch

[0050] 600: Clearance control section

[0051] 610: Space partition wall

[0052] 611: Central Tunnel

[0053] 620: Air Circulation Wall

[0054] 621: Air circulation nozzle

[0055] 630: Sliding Wall

[0056] 631: The First Wall

[0057] 6311: Indoor passageway

[0058] 632: The Second Wall

[0059] 6321: Protrusion

[0060] 633: The Third Wall

[0061] 640: Slide rail

[0062] One: Ceiling penetration point Detailed Implementation

[0063] The embodiments are described in detail below with reference to the accompanying drawings. However, various changes can be made to the embodiments, and therefore the scope of the patent application is not limited to or restricted by these embodiments. All modifications, balances, or substitutions to the embodiments should be understood to be included within the scope of this claim.

[0064] The specific structural or functional descriptions of the embodiments are provided for illustrative purposes only and may be modified and implemented in various forms. Therefore, the embodiments are not limited to a particular form of disclosure, and the scope of this specification includes changes, uniformities, or substitutions incorporated into the descriptive concepts.

[0065] Terms such as "first" or "second" can be used to describe various components, but the interpretation of these terms should only be used to distinguish one component from another. For example, the first component can be named the second component, and similarly, the second component can be named the first component.

[0066] When a component is said to be "connected" to another component, it should be understood that it may be directly connected to or connected to another component, but there may be another component between them.

[0067] The terminology used in the embodiments is for illustrative purposes only and should not be construed as restrictive. Singular expressions include plural expressions unless the context clearly implies otherwise. In this specification, the terms "comprising" or "having" should be understood to mean the presence of the functions, numbers, steps, actions, components, parts, or combinations thereof described herein, and should not exclude the presence or addition of one or more other functions or numbers, steps, actions, components, parts, or combinations thereof.

[0068] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary knowledge in the art to which the embodiments pertain. Terms such as those defined in common dictionaries should be interpreted as having the meaning consistent with their meaning in the relevant descriptive context and should not be interpreted in an idealistic or overly formal sense unless expressly defined in this application.

[0069] Furthermore, when describing the accompanying drawings, regardless of the drawing codes, the same reference numerals should be assigned to the same components, and redundant descriptions should be omitted. When describing embodiments, if it is determined that a detailed description of the relevant notifying technology may unnecessarily obscure the essential points of the embodiment, then detailed descriptions should be omitted.

[0070] The advantages and features of the present invention, as well as methods for implementing them, will be described with reference to the embodiments described in detail below and the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be practiced in various different forms. The embodiments are provided only to ensure that the disclosure of the invention is complete and to fully provide the scope of the invention to those skilled in the art to which it pertains, and the invention is defined only by the class of the claims.

[0071] In embodiments of the invention, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Unless explicitly defined in embodiments of the invention, terms such as those defined in common dictionaries should be interpreted as having the same meaning as they have in the relevant technical context, and should not be interpreted in an idealistic or overly formal sense.

[0072] The shapes, sizes, proportions, angles, and quantities disclosed in the accompanying drawings are used to illustrate embodiments of the invention. These shapes, sizes, proportions, angles, and quantities are illustrative and not limiting to the matters shown. Furthermore, in describing the invention, detailed descriptions of relevant known technologies should be omitted if it is determined that such detailed descriptions may unnecessarily obscure the essential points of the invention. When using words such as 'comprising,' 'having,' and 'completing' as used in this specification, other parts may be added unless 'only' is used. This includes cases where components are represented in the singular but include the plural, unless specifically stated otherwise.

[0073] When interpreting components, even if not explicitly stated, they will be interpreted as including the error magnitude.

[0074] If the description of the positional relationship is described as '~above', '~top', '~below', '~in addition', etc., then one or more other parts may be located between these two parts, unless 'immediately' or 'directly' is used.

[0075] The term "in" or "in" an element or layer encompasses any situation where another layer or element is directly inserted into another device or is located in the middle of another device. Throughout the specification, the same reference zero refers to the same component.

[0076] The dimensions and thicknesses of each configuration shown in the figure are for illustrative purposes only, and the invention is not necessarily limited to the size and thickness of the structures shown.

[0077] Each feature in the various embodiments of the present invention can be combined with each other in part or in whole, and as those skilled in the art will fully understand, they can be technically linked and driven together, and each embodiment can be performed independently of each other or together in an associated relationship.

[0078] Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

[0079] Figure 1 This is a block diagram of a ventilation system that can be controlled using power line communication according to the present invention.

[0080] Figure 2 This is a conceptual diagram of a ventilation device that can be controlled using power line communication according to the present invention.

[0081] Figure 3 yes Figure 2 Examples of implementations.

[0082] Figure 4 Showing Figure 3 The state where the first switch is activated.

[0083] Figure 5 Showing Figure 3 The state where the first and second switches are activated.

[0084] Figure 6 Showing Figure 3 The state in which the first, second, and third switches are activated.

[0085] See Figure 1 Installed in any space, the power line communication module 100 communicates data via power line communication and sends and receives signals to each configuration in the ventilation system. The control module 200 transmits the input ventilation status through the power line communication module 100 according to the operator's commands. The room ventilation module 300 adjusts the airflow according to the signals received from the power line communication module 100. It may include an external ventilation module 400, a sensor module 500 for venting indoor air into the room or venting indoor air to the outside according to the signals received from the power line communication module 100 connected to the indoor ventilation module 300, and a sensor module 500 for measuring the temperature, humidity and air quality of the indoor air and transmitting the measured values ​​to the control module 200.

[0086] The power line communication module 100 can be divided into a first communication body 110, a second communication body 120, a third communication body 130 and a fourth communication body 140. Each communication body relays the data sent and received by each other, and can automatically set the route when sending and receiving data.

[0087] Here, the user uses the operating condition input switch provided in the ZER module 200 to input each operating condition into the indoor ventilation module 300 and the outdoor ventilation module 400. The first communication unit 110 of the control module 200 can transmit the operating condition data via the power cord. The indoor ventilation module 300 and the outdoor ventilation module 400 are interconnected via the power cord, thereby enabling the transmission of operating condition data. In this way, the indoor ventilation module 300 and the outdoor ventilation module 400 can be operated based on the data for each operating condition.

[0088] On the other hand, the sensor module 500 can always transmit indoor status data, including the measured indoor air temperature, humidity, and air quality, regardless of how the indoor ventilation module 300 and the external ventilation module 400 operate, as described above.

[0089] The indoor status data is transmitted to the control module 200, which can then set the indoor ventilation module 300 and the outdoor ventilation module 400 to terminate operation based on the room status data.

[0090] Here, the control technology using power line communication is a technique that simultaneously performs electrical signal and data communication over a power line. This allows for the control of equipment by sending and receiving data via the power line without the need for a separate communication line. This invention introduces this power line communication technology into ventilation systems, reducing the installation and operational complexity of existing ventilation systems and enabling automatic ventilation control.

[0091] The power line communication module 100 is a device that simultaneously transmits and receives power and data signals via a power line, enabling the indoor ventilation module 300, the external ventilation module 400, and the control module 200 to send and receive data. Typical power line communication methods employ technologies such as orthogonal frequency division multiplexing (OFDM) to divide the power line frequency band into several bands to ensure stable data communication.

[0092] The power line communication module 100 transmits commands received from the control module 200 to the indoor ventilation module 300 and the external ventilation module 400, enabling interaction between the modules. The communication signals utilize the power line's frequency band, allowing each component to send and receive data.

[0093] The ventilation conditions (e.g., ventilation intensity, temperature control, etc.) set by the user through the control module 200 are transmitted by the power line communication module 100 to the indoor ventilation module 300 and the external ventilation module 400 so that each module can operate according to the corresponding conditions.

[0094] The control module 200 serves as the central processing unit of the ventilation system and adjusts ventilation conditions based on user commands or data collected from the sensor module 500. The control module 200 transmits commands via the power line communication module 100 to control the operation of the indoor and outdoor ventilation modules 400, enabling real-time monitoring and automatic adjustment of ventilation conditions.

[0095] Once the ventilation conditions are set, the control module 200 sends commands to the indoor ventilation module 300 and the external ventilation module 400 to adjust fan speed, blade angle, air intake, etc. In addition, it receives temperature, humidity, and air quality data from the sensor module 500 to optimize indoor conditions.

[0096] When the room temperature or air quality exceeds a certain standard, the control module 200 automatically activates the ventilation module to regulate the indoor environment. This ensures that the indoor air quality is maintained without user intervention.

[0097] The indoor ventilation module 300 is a device for regulating indoor airflow, including a fan, blades, and a filter. It receives commands from the power line communication module 100 to adjust the fan speed and blade angle to control the inflow and outflow of indoor air. Additionally, it includes a clearance control unit 600 to adjust the volume of the target indoor ventilation space and enhance airtightness.

[0098] The fan is responsible for forcibly circulating air, and the blades regulate the direction of the airflow. In the ventilation module, the fan speed determines the intensity of the airflow, and the blades guide the airflow in the desired direction.

[0099] The gap control unit 600, included in the indoor ventilation module 300, adjusts the volume of the target ventilation space to increase airtightness. It can be operated by sliding or automatic opening and closing to minimize air leakage and maximize ventilation efficiency.

[0100] The external ventilation module 400 is a device that introduces outside air into the room or exhausts indoor air to the outside. It works in conjunction with the indoor ventilation module 300 to exchange air with the outside and control the inflow of outside air. This module can automatically adjust the paths of the air inlet and outlet to maintain indoor ventilation conditions.

[0101] The external ventilation module 400 works in conjunction with the indoor ventilation module 300 to bring outside air into the room or exhaust polluted indoor air to the outside when necessary. This plays a crucial role in maintaining indoor air quality.

[0102] Sensor module 500 measures the room's temperature, humidity, and air quality in real time and provides the data to control module 200. Control module 200 adjusts the indoor ventilation conditions based on the data provided by sensor module 500, and automatically activates the ventilation module when the conditions exceed the set standards.

[0103] Temperature sensors detect indoor temperature to help the ventilation module regulate airflow.

[0104] Humidity sensors measure indoor humidity to detect whether indoor air is dry or humid.

[0105] The air quality sensor measures carbon dioxide concentration, fine dust concentration, etc., and sends a signal to the control module 200 to activate the indoor ventilation module 300 and the external ventilation module 400 when the air quality deteriorates.

[0106] The user sets ventilation conditions (e.g., temperature, humidity, ventilation speed, etc.) through the control module 200. These conditions are transmitted via the power line to the power line communication module 100. The power line communication module 100 transmits commands received from the control module 200 to the indoor ventilation module 300 and the external ventilation module 400. The indoor ventilation module 300 adjusts the fan speed and blade angle to introduce or exhaust air. Meanwhile, the clearance control unit 600 adjusts the enclosed area as needed to prevent air leakage, thus improving ventilation efficiency. The external ventilation module 400 works in conjunction with the indoor ventilation module 300 to exchange air by introducing outside air or exhausting indoor air to the outside. The sensor module 500 measures the indoor air conditions in real time, and the control module 200 automatically adjusts the ventilation conditions accordingly when necessary.

[0107] Next, the indoor ventilation module 300 is characterized by including a gap control unit 600 to improve air tightness by blocking the passageway that connects air to other spaces in the ventilation space.

[0108] Next, refer to Figure 2 or Figure 6 The gap control unit 600 may include a space partition wall 610 that divides any space into two chambers, a central tunnel 611 formed by the space partition wall 610, and an air circulation wall 620 inserted into the central tunnel 611, but such that the space divided into two chambers is divided into four chambers.

[0109] The air circulation wall 620 can be inserted perpendicularly to the space partition wall 610.

[0110] Inside the air-circulating wall 620, a certain space can be set along the X direction.

[0111] The gap control unit 600 may also include air circulation nozzles 621 that are equally spaced in the X direction on the outer side of the air circulation wall 620.

[0112] The air circulation nozzle 621 can be configured to be paired with the outer side of the air circulation wall 620 in the Y direction.

[0113] The gap control unit 600 may also include a slide rail 640 mounted on the lower surface of a space provided inside the air circulation wall 620, and a slide wall 630 disposed in the space provided inside the air circulation wall 620 in a manner that reciprocates along the slide rail 640 in the X direction.

[0114] The sensor module 500 may include a switch 510, which is disposed at both ends in the X direction within the space provided inside the air circulation wall 620.

[0115] The air circulation nozzle 621 can be opened and closed as the sliding wall 630 moves.

[0116] The indoor ventilation module 300 is disposed in each of the four chambers, but may include an indoor fan 310 mounted in the ceiling.

[0117] The external ventilation module 400 may include a central vertical duct 410 embedded in a space partition wall 610, but installed across multiple floors in the building.

[0118] The indoor ventilation module 300 may also include a central connection channel 320, which serves as a channel for transmitting air intakes from the room fan 310 to the central vertical duct 410.

[0119] The external ventilation module 400 is located on one side of the central vertical duct 410, but may also include a negative pressure chamber 420 to provide negative pressure so that air drawn in from the room fan 310 is diverted.

[0120] The switch 510 contacts the sliding wall 630 for operation, but the negative pressure chamber 420 provides a signal to the control module 200 to make it run. At the same time, the air circulation nozzles 621 in the four chambers are characterized by providing a signal to the control module 200 to operate the chamber fan 310 closed by the sliding wall 630.

[0121] Next, these four chambers can be defined as the first chamber 11, the second chamber 12, the third chamber 13, and the fourth chamber 14.

[0122] The sliding wall 630 can be divided into a first wall 631, a second wall 632, and a third wall 633, which are arranged in parallel to each other.

[0123] The slide rail 640 can be composed of three parallel tracks, with the first wall 631, the second wall 632 and the third wall 633 each reciprocating along the X direction.

[0124] A second wall 632 can be placed on the guide rail located in the center. A first wall 631 and a third wall 633 can be placed on either side of the second wall 632.

[0125] The air circulation nozzle 621 can be opened and closed as the first wall 631 and the third wall 633 move respectively.

[0126] The first wall 631 and the third wall 633 are made of high-density polycarbonate material and can be prepared in the form of visible inter-cavity cladding material.

[0127] High-density polycarbonate (HDP) is a material that maintains transparency while possessing very high strength, exhibiting excellent performance in terms of airtightness and durability. Furthermore, it retains its properties at both high and low temperatures. It also excels in sound insulation and shock resistance, can withstand various environmental changes that may occur in ventilation systems, and can provide a sense of openness to spaces by maintaining a degree of transparency.

[0128] The second wall 632 can be made of EPDM rubber sheet.

[0129] EPDM rubber sheets can maximize the airtightness of the sliding wall 630 by utilizing the flexibility of rubber. In particular, EPDM rubber is highly resistant to environmental changes and can reduce vibration and noise in confined areas. In addition, it can absorb shocks that may occur in the ventilation system.

[0130] The switch portion 510 may include a first switch 511 that contacts the first wall 631, a second switch 512 that contacts the second wall 632, and a third switch 513 that contacts the third wall 633.

[0131] If only the first switch 511 is operated in the switch section 510, the indoor fan 310 of the first chamber 11 is operated, but a signal is provided to the control module 200 to make it operate at the first intensity level. If the first switch 511 and the second switch 512 are operated simultaneously between the switch sections 510, the indoor fan 310 of the first chamber 11 is activated, but a signal is provided to the control module 200 to make it operate at the second intensity level. When the first switch 511, the second switch 512 and the third switch 513 are operated simultaneously between the switch sections 510, the room fans 310 of the first chamber 11 and the fourth chamber 14 are operated simultaneously, but the third intensity level is characterized by providing a signal to the control module 200 to make it operate at the third intensity level.

[0132] Next, an indoor channel 6311 formed along the X direction can be provided inside the first wall 631 and the third wall 633 to communicate with the air circulation nozzle 621.

[0133] Even if the first chamber 11 is sealed by the first wall 631 and the second wall 632 through the indoor passage 6311, it can still communicate with the second chamber 12, the third chamber 13 and the fourth chamber 14.

[0134] The first switch 511 and the third switch 513 are made in the same way, but the ends of the first wall 631 and the third wall 633 are inserted respectively, and grooves with operating dimensions can be provided.

[0135] The second switch 512 is manufactured in the same way as the first switch 511. The thickness of the second wall 632 is twice the thickness of the first wall 631. The two ends of the second wall 632 can be provided with protrusions 6321 of a predetermined length.

[0136] The thickness of the protrusion 6321 is the same as the thickness of the first wall 631, and the second wall 632 is the sum of the lengths of the two protrusions 6321 provided on both sides of the second wall 632, characterized in that the length is the same as the length of the first wall 631.

[0137] Referring to the accompanying drawings, embodiments of the present invention have been described in more detail. However, the present invention is not necessarily limited to such embodiments, and various modifications can be made without departing from the spirit and concept of the invention. Therefore, the embodiments disclosed in this invention are not intended to limit the technical concept of the invention, but rather to illustrate it, and the scope of the technical concept of the invention is not limited by such embodiments. Therefore, the above embodiments should be understood as illustrative and not limited in all respects. The scope of protection of the present invention should be interpreted in accordance with the following claims, and all technical concepts within the equivalent scope should be interpreted as falling within the scope of the claims of the present invention.

[0138] Therefore, other embodiments, other embodiments, and those equivalent to the patent claims also fall within the scope of the claims described below.

Claims

1. A controllable ventilation system using power line communication, wherein, include: The power line communication module is used for data communication via power lines and for sending and receiving signals to and from corresponding configurations within the ventilation system. The control module is used to transmit input ventilation conditions via the power line communication module according to the operator's commands; The room ventilation module is used to adjust airflow based on signals received from the power line communication module; An external ventilation module is used to bring outdoor air into the room or exhaust indoor air to the outside based on a signal received from a power line communication module connected to the indoor ventilation module. and The sensor module is used to measure the temperature, humidity, and air quality of indoor air and transmit the measured values ​​to the control module.

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