A multifunctional ventilation device for green buildings

Abstract

The present invention relates to the field of ventilation technology, and in particular to a multifunctional ventilation device for green buildings, comprising an upper ventilator, an air duct, a lower ventilator, and a dividing strip, etc.; the upper ventilator is connected to a plurality of air ducts on the lower side; all the air ducts are connected to a lower ventilator on the lower side; the lower ventilator is provided with an exhaust cavity; the rear side of the exhaust cavity is provided with an exhaust port; each air duct is provided with a dividing strip for separating indoor and outdoor airflow; the air duct is divided into an exhaust duct and an intake duct by the dividing strip; the upper ventilator is provided with a plurality of exhaust cavities; each exhaust cavity is connected to a corresponding exhaust duct; and the upper ventilator is provided with a plurality of exhaust sections. The present invention realizes that by installing the upper ventilator and the lower ventilator on the upper and lower sides of the curtain wall respectively, the distance between the indoor and outdoor air inlet and exhaust vents is widened, and the situation of airflow short circuit caused by the close distance between the indoor and outdoor air inlet and exhaust vents is prevented, thereby enhancing the ventilation effect of the room.

Description

Technical Field

[0001] The present invention relates to the field of ventilation technology, and in particular to a multifunctional ventilation device for green buildings. Background Art

[0002] An electric curtain wall ventilator is a device that achieves indoor and outdoor air exchange through electric control. It is mainly used in the ventilation system of modern buildings to achieve mechanical exchange of indoor and outdoor air. It can accurately control the ventilation volume and improve indoor air quality while maintaining the beauty and structural integrity of the building.

[0003] In order to reduce the load of the indoor air-conditioning system when using existing electric-controlled curtain wall ventilators, some electric-controlled curtain wall ventilators are equipped with a heat exchange core inside and a suction system for the indoor room. While sucking outdoor air, the indoor air can be discharged to the outside. In this process, both indoor and outdoor air are heat-exchanged through the heat exchange core. However, due to the small size of the existing electric-controlled curtain wall ventilators, the distance between the exhaust port for discharging indoor air and the suction port for sucking outdoor air is small. There is a certain probability that the discharged indoor air will be directly re-inhaled into the room, resulting in insufficient fresh air supply and prone to air flow short-circuiting, which reduces the ventilation effect of the room and affects the indoor air quality.

[0004] Furthermore, the existing electric-controlled curtain wall ventilator has a filter inside. During ventilation, when the filter is clogged by external particles and impurities, the filter can only be taken out of the ventilator for cleaning or replacement, making the process of cleaning or replacing the filter cumbersome and time-consuming. Summary of the Invention

[0005] In order to overcome the shortcomings of existing electric-controlled curtain wall ventilators, such as a small distance between the exhaust port and the suction port, which easily causes airflow short-circuiting and reduces the indoor ventilation effect, and the cumbersome and time-consuming process of cleaning or replacing the filter, the present invention provides a multifunctional ventilation device for green buildings.

[0006] The technical solution is: a multifunctional ventilation device for green buildings, including an upper ventilator; also including an air pipe, a lower ventilator, a dividing strip, a ventilation assembly and an intercepting assembly; several air pipes are connected to the lower side of the upper ventilator; the lower sides of all air pipes are commonly connected to a lower ventilator; an exhaust cavity is provided inside the lower ventilator; an exhaust port is provided on the rear side of the exhaust cavity; each air pipe is provided with a dividing strip for separating indoor and outdoor airflow; the air pipe is divided into an exhaust duct and an air inlet duct by the dividing strip; several exhaust cavities are provided in the upper ventilator; each exhaust cavity is connected to the corresponding exhaust duct; several exhaust parts are provided in the upper ventilator; an air inlet cavity is provided in the upper ventilator; each air inlet duct is connected to the air inlet cavity; the lower ventilator is connected to a ventilation assembly for indoor and outdoor ventilation; the lower ventilator is connected to an intercepting assembly for intercepting particulate impurities in the air.

[0007] As an improvement to the above scheme, the ventilation assembly includes an exhaust fan, an exhaust fan, a baffle, a heat exchange core and a partition; a plurality of exhaust fans for exhausting indoor air are fixedly connected to the interior of the lower ventilator; a plurality of exhaust fans for drawing in external air are fixedly connected to the interior of the lower ventilator; a partition for separating indoor and outdoor airflow is fixedly connected to the interior of the lower ventilator; a ventilation groove is provided on the partition; an interception net for intercepting particulate impurities is provided on the ventilation groove; a baffle for blocking the ventilation groove is connected to the damping sliding connection inside the partition; the lower side of each dividing strip is fitted with the upper side of the partition to achieve a separation effect, the space where the exhaust fan is located is connected to the air inlet duct, and the space where the exhaust fan is located is connected to the air inlet duct. Connected with the exhaust duct; the exhaust fan and the exhaust fan are respectively located on the front and rear sides of the partition; a pulling part is provided on the upper side of the baffle; the pulling part extends through and extends to the outside of the lower ventilator; a heat exchange core for heat exchange between indoor and outdoor air is connected to the interior of the upper ventilator; the heat exchange core separates the exhaust cavity, exhaust part and air inlet cavity in the upper ventilator, and the exhaust cavity and the exhaust part are located at the diagonal corners of the upper ventilator; a number of air outlet ducts are opened inside the heat exchange core; the air outlet duct connects the exhaust cavity with the exhaust part; a number of air ducts are opened inside the heat exchange core; each air duct connects the air inlet cavity with the indoor room; each air outlet duct and each air duct are arranged in an upper and lower alternating state.

[0008] As an improvement to the above solution, each air passage in the heat exchange core is configured to be in a curved state.

[0009] As an improvement to the above-mentioned solution, the interception component includes a micro motor and a filter; the micro motor is fixedly connected to the inside of the lower ventilator; the filter for intercepting particulate impurities in the air is rotatably connected to the inside of the lower ventilator; the filter is located on the upper side of the exhaust cavity; the filter is cylindrical; the output end of the micro motor is fixedly connected to the filter; a scraping part is provided inside the lower ventilator for scraping off particulate impurities adhered to the filter; the scraping part is in contact with the lower side of the filter.

[0010] As an improvement to the above solution, the separation strip is made of heat-conducting material.

[0011] As an improvement to the above solution, the bottom of the impurity discharge chamber in the lower ventilator is arranged in an inclined state that gradually descends toward the impurity discharge port.

[0012] As an improvement to the above solution, an eight-shaped guide portion for guiding the airflow is provided in the lower ventilator; the guide portion is located at the upper front portion of the scraping portion.

[0013] As an improvement to the above solution, a structure for increasing friction is provided on the surface of the pulling portion.

[0014] As an improvement to the above solution, a sealing plate is further included; a sealing plate is rotatably connected to the exhaust port of the lower ventilator and is controlled to rotate and block external airflow; the sealing plate opens downward.

[0015] As an improvement to the above solution, a groove having the same shape as the sealing plate and contacting and accommodating the free end of the sealing plate is provided on the lower side of the lower ventilator.

[0016] The beneficial effect is that the present invention realizes that by installing the upper ventilator and the lower ventilator on the upper side and the lower side of the curtain wall respectively, the distance between the indoor and outdoor air inlet and exhaust vents is widened, and the air flow short circuit caused by the close distance between the indoor and outdoor air inlet and exhaust vents is prevented, thereby enhancing the indoor ventilation effect;

[0017] By using heat-conducting material separation strips, the indoor and outdoor air transmitted upward in the air pipe can undergo preliminary heat exchange, which is beneficial to enhance the subsequent heat exchange effect of the indoor and outdoor air;

[0018] The scraping part scrapes the particle impurities intercepted on the outside of the filter into the impurity discharge chamber, cleaning the filter in real time to prevent the outside of the filter from being blocked due to long-term accumulation of particle impurities, thereby improving the ventilation and air permeability of the filter;

[0019] Sealing the impurity discharge port with a sealing plate helps prevent external airflow from being drawn into the lower ventilator from the impurity discharge port, and avoids the particle impurities collected in the impurity discharge chamber from becoming dust and re-adhering to the filter, thereby ensuring the collection effect of the particle impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a first viewing angle three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of a second viewing angle three-dimensional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the combined three-dimensional structure of the air pipe, lower ventilator, separator, ventilation assembly, interception assembly and sealing plate of the present invention;

[0023] Figure 4 A side view of the assembly of the lower ventilator, ventilation assembly, interception assembly and sealing plate of the present invention;

[0024] Figure 5 This is a cross-sectional view of the upper ventilator of the present invention from a first viewing angle;

[0025] Figure 6 A cross-sectional view of the upper ventilator of the present invention from a second viewing angle;

[0026] Figure 7 This is a cross-sectional view of a first combination of an upper ventilator and a heat exchange core according to the present invention;

[0027] Figure 8 This is a cross-sectional view of a second combination of an upper ventilator and a heat exchange core according to the present invention;

[0028] Figure 9This is a cross-sectional view of the third combination of the upper ventilator and the heat exchange core of the present invention.

[0029] The numbers in the figure are: 1-upper ventilator, 1001-exhaust chamber, 1002-exhaust part, 1003-air inlet chamber, 2-trachea, 2001-exhaust duct, 2002-air inlet duct, 3-lower ventilator, 3001-exhaust chamber, 3002-exhaust port, 3003-scraping part, 3004-guiding part, 4-dividing strip, 101-exhaust fan, 102-exhaust fan, 103-baffle, 10301-pulling part, 104-heat exchange core, 10401-air outlet, 10402-air duct, 105-partition, 10501-ventilation groove, 10502-interception net, 201-micro motor, 202-filter, 401-sealing plate. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1-9 As shown, a multifunctional ventilation device for green buildings includes an upper ventilator 1; the upper ventilator 1 is installed on the upper part of the curtain wall;

[0033] It also includes an air pipe 2, a lower ventilator 3, a dividing strip 4, a ventilation assembly and an intercepting assembly; two air pipes 2 are connected to the lower side of the upper ventilator 1 in a left-right symmetrical manner; the lower sides of all air pipes 2 are connected to a lower ventilator 3; an exhaust cavity 3001 is provided inside the lower ventilator 3; an exhaust port 3002 is provided on the rear side of the exhaust cavity 3001; a dividing strip 4 is provided inside each air pipe 2; the interior of the air pipe 2 is divided into an exhaust duct 2001 and an air intake duct 2002 by the dividing strip 4; two exhaust cavities 1001 are provided in the upper ventilator 1 in a left-right symmetrical manner; each exhaust cavity 1001 is connected to the corresponding exhaust duct 2001; two exhaust parts 1002 are provided in the upper ventilator 1 in a left-right symmetrical manner; an air intake cavity 1003 is provided in the upper ventilator 1; each air intake duct 2002 is connected to the air intake cavity 1003; a ventilation assembly is connected to the lower ventilator 3; an intercepting assembly is connected to the lower ventilator 3.

[0034] The ventilation assembly includes an exhaust fan 101, an exhaust fan 102, a baffle 103, a heat exchange core 104 and a partition 105; a plurality of exhaust fans 101 are fixedly connected to the interior of the lower ventilator 3; a plurality of exhaust fans 102 are fixedly connected to the interior of the lower ventilator 3; a partition 105 is fixedly connected to the interior of the lower ventilator 3; a ventilation groove 10501 is provided on the partition 105; an interception net 10502 for intercepting particulate impurities is provided on the ventilation groove 10501; a baffle 103 is connected to the partition 105 in a damping sliding manner; the lower side of each dividing strip 4 is fitted with the upper side of the partition 105 to achieve a separation effect, the space where the exhaust fan 102 is located is connected to the air inlet duct 2002, and the space where the exhaust fan 101 is located is connected to the exhaust duct 2001; the exhaust fan 101 and the exhaust fan 102 are respectively located in front and behind the partition 105 side; a pulling portion 10301 is provided on the upper side of the baffle 103; the pulling portion 10301 extends through and extends to the outside of the lower ventilator 3; a heat exchange core 104 is detachably connected to the interior of the upper ventilator 1; the heat exchange core 104 separates the exhaust cavity 1001, the exhaust portion 1002 and the air inlet cavity 1003 in the upper ventilator 1, and the exhaust cavity 1001 and the exhaust portion 1002 are located at the diagonal ends of the upper ventilator 1; a plurality of air outlet ducts 10401 are provided inside the heat exchange core 104; the air outlet duct 10401 connects the exhaust cavity 1001 with the exhaust portion 1002; a plurality of air ducts 10402 are provided inside the heat exchange core 104; each air duct 10402 connects the air inlet cavity 1003 with the room; each air outlet duct 10401 and each air duct 10402 are arranged in an upper and lower alternating arrangement state.

[0035] Each air passage 10402 in the heat exchange core 104 is configured to be curved, which is beneficial for extending the flow path of the air entering the room, allowing it to fully exchange heat with the exhaust air, thereby enhancing the heat exchange effect.

[0036] The interception component includes a micro motor 201 and a filter 202; the micro motor 201 is fixedly connected to the inside of the lower ventilator 3; the filter 202 is rotatably connected to the inside of the lower ventilator 3; the filter 202 is located on the upper side of the exhaust chamber 3001; the filter 202 is cylindrical; the output end of the micro motor 201 is fixedly connected to the filter 202; a scraping part 3003 is provided inside the lower ventilator 3; the scraping part 3003 is in contact with the lower side of the filter 202.

[0037] The partition strip 4 is made of heat-conducting material, which is conducive to the preliminary heat exchange between the indoor and outdoor air flows passing through the air pipe 2.

[0038] The bottom of the impurity removal chamber 3001 in the lower ventilator 3 is arranged in an inclined state that gradually descends toward the impurity removal port 3002 . This is beneficial for moving the accumulated granular impurities in the impurity removal chamber 3001 toward the impurity removal port 3002 and discharging them during subsequent cleaning.

[0039] A guide portion 3004 is provided in the lower ventilator 3 ; the guide portion 3004 is located at the upper front portion of the scraping portion 3003 .

[0040] The surface of the pulling part 10301 is provided with a structure for increasing friction, and tiny grooves, bumps, or a rubber sleeve are provided on the surface, so that the user can more easily lift the pulling part 10301.

[0041] The specific working process of the present invention is as follows:

[0042] Combine Figure 3 It is understood that the exhaust fan 101 is located at the front side relative to the exhaust fan 102, and the micro motor 201 is located on the left side relative to the filter 202. When the curtain wall ventilator is used to ventilate the room, the exhaust fan 102 is controlled to draw outdoor air into the lower ventilator 3. After the outdoor air enters the lower ventilator 3, it flows through the filter 202 and enters the air inlet 2002 of the air duct 2 after passing through the exhaust fan 102. In this process, the particulate impurities contained in the air are intercepted by the filter 202. While the exhaust fan 102 sucks the outside air, the exhaust fan 101 is controlled to suck the indoor air into the lower ventilator 3 and transport the gas to the exhaust duct 2001 of the air duct 2. In this process, the indoor and outdoor gases entering the lower ventilator 3 and the air duct 2 are separated by the partition 105, the baffle 103 and the dividing strip 4 to prevent the indoor and outdoor gases from mixing in the lower ventilator 3 and the air duct 2, thereby avoiding the reduction of the quality of the air sucked into the room.

[0043] When the indoor and outdoor gases are transmitted upward in the air pipe 2, the indoor and outdoor gases transmitted upward in the air pipe 2 are initially heat exchanged by using the separation strip 4 of heat conductive material, which prolongs the path and time of the indoor and outdoor gases heat exchange, so that the indoor and outdoor gases heat are fully exchanged, which is beneficial to enhance the subsequent heat exchange effect of the indoor and outdoor gases. When the indoor and outdoor gases pass through the air pipe 2 and enter the upper ventilator 1, the indoor gas in the exhaust duct 2001 enters the exhaust chamber 1001, and the outdoor gas in the intake duct 2002 enters the intake chamber 1003. Figures 7 to 9It is understood that the indoor air entering the exhaust chamber 1001 flows from the air outlet 10401 through the heat exchange core 104 and is then transmitted to the exhaust part 1002 and discharged to the outside. The outdoor air entering the air inlet chamber 1003 flows from the air duct 10402 through the heat exchange core 104 and is directly transported to the room to ventilate the room. When the indoor and outdoor air flow through the heat exchange core 104, the heat exchange core 104 performs heat exchange on the indoor and outdoor air, so that the temperature of the air flow entering the room is close to the indoor temperature, which is beneficial to reduce the load of the indoor air conditioning system, reduce energy consumption, and make the equipment run more energy-efficient. It can, at the same time, reduce the discomfort caused to the human body by excessive temperature difference. When the air flows through the air duct 10402, the air duct 10402 is set in a curved state to extend the flow path of the outdoor air flow, so that it can fully exchange heat with the discharged outdoor air flow, which is beneficial to enhance the heat exchange effect of the air flow. On this basis, the present invention increases the distance between the indoor and outdoor air inlet and exhaust vents by installing the upper ventilator 1 and the lower ventilator 3 on the upper and lower sides of the curtain wall respectively, thereby preventing the air flow short circuit due to the close distance between the indoor and outdoor air inlet and exhaust vents, thereby enhancing the ventilation effect of the room.

[0044] When the filter screen 202 intercepts and filters the outside air drawn into the lower ventilator 3, Figure 4 It is understood that the micro motor 201 is controlled to drive the filter 202 to rotate counterclockwise, so that the filter 202 contacts the scraping part 3003 during the rotation, and the scraping part 3003 scrapes the particulate impurities intercepted on the outside of the filter 202 into the impurity removal chamber 3001, so that the filter 202 is cleaned in real time, preventing the outside of the filter 202 from being blocked due to the long-term accumulation of particulate impurities, thereby improving the ventilation and air permeability effect of the filter 202.

[0045] When the impurities scraped by the scraping part 3003 in the impurity removal chamber 3001 accumulate to a large extent, the gas entering the room is mixed with the odor of the particulate impurities in the impurity removal chamber 3001, resulting in a decrease in the indoor air quality. At this time, it is necessary to clean the collected particulate impurities in the impurity removal chamber 3001. Figure 3 and Figure 4To understand, first turn off the exhaust fan 101 and the exhaust fan 102 to stop sucking the indoor and outdoor air, then pull the pulling part 10301 upward to make the baffle 103 rise in the partition 105, release the baffle 103 from blocking the ventilation groove 10501, and then control the exhaust fan 101 to rotate so that the air flow blown out by the exhaust fan 101 passes through the ventilation groove 10501 and blows out towards the contact position between the filter 202 and the scraping part 3003, so that the filter 202 and the air are separated. The impurities stuck between the scraping parts 3003 are blown down into the impurity removal chamber 3001. At this time, the micro motor 201 is controlled to drive the filter 202 to rotate clockwise for a certain distance, so that the impurities stuck between the filter 202 and the scraping part 3003 are separated from the filter 202 as the filter 202 rotates, thereby enhancing the cleaning effect of the impurities stuck between the filter 202 and the scraping part 3003. The air flow blown out by the exhaust fan 101 passes through the filter 202 and enters the impurity removal chamber 3001. 01, the airflow drives the particulate impurities in the exhaust chamber 3001 to be discharged to the outside from the exhaust port 3002, thereby cleaning the random particulate impurities in the exhaust chamber 3001, preventing the gas entering the room from being mixed with the odor of the particulate impurities in the exhaust chamber 3001, and ensuring the air quality entering the room. If an ordinary flat filter 202 is used to intercept the particulate impurities, the impurities intercepted on the flat filter 202 cannot be collected and cleaned, so that the exhaust fan 101 needs to clean the entire interception surface of the flat filter 202, resulting in an increase in the cleaning area, and the exhaust fan 101 needs to blow with greater power or consume a longer time to ensure the cleaning effect. After the particulate impurities in the air pipe 2 and the lower ventilator 3 are cleaned, the pulling part 10301 is pressed downward to make the baffle 103 descend in the partition 105, and the ventilation groove 10501 is re-sealed, and indoor and outdoor ventilation can be resumed.

[0046] When the airflow blown out by the air exhaust fan 101 passes through the filter 202 to clean the impurities in the impurity removal chamber 3001, part of the airflow is guided by the guide part 3004 and gathered to the contact position between the filter 202 and the scraping part 3003, thereby enhancing the blowing and cleaning effect of the contact position between the filter 202 and the scraping part 3003, and further enhancing the blowing and cleaning effect of the particulate impurities in the impurity removal chamber 3001.

[0047] Example 2

[0048] On the basis of Example 1, Figure 3 and Figure 4 As shown, it also includes a sealing plate 401; the impurity discharge port 3002 of the lower ventilator 3 is rotatably connected to the sealing plate 401, and the sealing plate 401 is connected to a power motor; the sealing plate 401 opens downward.

[0049] A notch is provided on the lower side of the lower ventilator 3, which has the same shape as the sealing plate 401 and contacts and accommodates the free end of the sealing plate 401, so as to prevent the sealing plate 401 from protruding from the surface of the lower ventilator 3, thereby reducing the probability of damage to the sealing plate 401, and preventing the airflow from being sucked into the exhaust cavity 3001 from the exhaust port 3002, thereby preventing the particulate impurities in the exhaust cavity 3001 from being affected by the airflow and causing dust.

[0050] When the lower ventilator 3 is in normal ventilation operation, the sealing plate 401 is initially in a horizontal closed state to block the impurity discharge port 3002, and there is a groove at the bottom of the lower ventilator 3 that contacts and accommodates the free end of the sealing plate 401, so as to prevent the sealing plate 401 from protruding from the surface of the lower ventilator 3 and reduce the probability of damage to the sealing plate 401. The sealing plate 401 blocking the impurity discharge port 3002 is conducive to preventing the external air flow from being drawn into the lower ventilator 3 from the impurity discharge port 3002, thereby preventing the particulate impurities collected in the impurity discharge cavity 3001 from being raised. And re-adhere to the filter 202, which ensures the collection effect of particulate impurities. When the particulate impurities in the exhaust chamber 3001 are cleaned and discharged, the sealing plate 401 is actively controlled to open downward by the power motor, and the particulate impurities will directly fall out of the exhaust chamber 3001, and the air flow blown out by the exhaust fan 101 flows into the exhaust chamber 3001, so that the particulate impurities in the exhaust chamber 3001 can be discharged faster and more fully from the exhaust port 3002, thereby reducing the residual particulate impurities in the exhaust chamber 3001.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional ventilation device for a green building, comprising an upper ventilator (1); wherein: The utility model also includes an air pipe (2), a lower ventilator (3), a dividing strip (4), a ventilation assembly and an intercepting assembly; the lower side of the upper ventilator (1) is connected to a plurality of air pipes (2); the lower sides of all the air pipes (2) are connected to a lower ventilator (3); a degassing cavity (3001) is provided inside the lower ventilator (3); a degassing port (3002) is provided on the rear side of the degassing cavity (3001); a dividing strip (4) for separating indoor and outdoor airflow is provided inside each air pipe (2); the interior of the air pipe (2) is divided into an exhaust duct (2001) by the dividing strip (4); ) and an air inlet duct (2002); a plurality of exhaust cavities (1001) are provided in the upper ventilator (1); each exhaust cavity (1001) is communicated with a corresponding exhaust duct (2001); a plurality of exhaust portions (1002) are provided in the upper ventilator (1); an air inlet cavity (1003) is provided in the upper ventilator (1); each air inlet duct (2002) is communicated with the air inlet cavity (1003); a ventilation component for indoor and outdoor ventilation is connected to the lower ventilator (3); an interception component for intercepting particulate impurities in the air is connected to the lower ventilator (3); The ventilation assembly comprises an exhaust fan (101), an exhaust fan (102), a baffle (103), a heat exchange core (104) and a partition (105); a plurality of exhaust fans (101) for exhausting indoor air are fixedly connected inside the lower ventilator (3); a plurality of exhaust fans (102) for drawing in external air are fixedly connected inside the lower ventilator (3); a partition (105) for separating indoor and outdoor airflow is fixedly connected inside the lower ventilator (3); a ventilation slot (10501) is provided on the partition (105); a ventilation The air groove (10501) is provided with an interception net (10502) for intercepting particulate impurities; the partition (105) is internally connected with a damping sliding connection with a baffle (103) for blocking the air groove (10501); the lower side of each partition bar (4) is fitted with the upper side of the partition (105) to achieve a separation effect; the space where the exhaust fan (102) is located is connected to the air inlet duct (2002), and the space where the exhaust fan (101) is located is connected to the exhaust duct (2001); the exhaust fan (101) and the exhaust fan (1001) are connected. 2) are respectively located on the front and rear sides of the partition (105); a pulling portion (10301) is provided on the upper side of the baffle (103); the pulling portion (10301) extends through and extends to the outside of the lower ventilator (3); a heat exchange core (104) for heat exchange between indoor and outdoor air is connected to the interior of the upper ventilator (1); the heat exchange core (104) separates the exhaust cavity (1001), the exhaust portion (1002) and the air inlet cavity (1003) in the upper ventilator (1), and the exhaust cavity (1001) and the exhaust portion (1002) are connected to each other. 2) Located at the diagonal position of the upper ventilator (1); a plurality of air outlet ducts (10401) are provided inside the heat exchange core (104); the air outlet ducts (10401) connect the exhaust cavity (1001) with the exhaust portion (1002); a plurality of air ducts (10402) are provided inside the heat exchange core (104); each air duct (10402) connects the air inlet cavity (1003) with the indoor space; each air outlet duct (10401) and each air duct (10402) are arranged in an upper and lower alternating arrangement; The interception component comprises a micro motor (201) and a filter (202); the micro motor (201) is fixedly connected inside the lower ventilator (3); the filter (202) for intercepting particulate impurities in the air is rotatably connected inside the lower ventilator (3); the filter (202) is located on the upper side of the impurity removal cavity (3001); the filter (202) is cylindrical; the output end of the micro motor (201) is fixedly connected to the filter (202); a scraping portion (3003) for scraping off particulate impurities adhered to the filter (202) is provided inside the lower ventilator (3); the scraping portion (3003) is in contact with the lower side of the filter (202).

2. The multifunctional ventilation device for green buildings according to claim 1, characterized in that: Each air passage (10402) in the heat exchange core (104) is configured to be in a curved state.

3. The multifunctional ventilation device for green buildings according to claim 1 is characterized in that: The separation strip (4) is made of heat-conducting material.

4. A multifunctional ventilation device for green buildings according to any one of claims 1 to 3, characterized in that: The bottom of the impurity discharge chamber (3001) in the lower ventilator (3) is arranged in an inclined state that gradually descends toward the impurity discharge port (3002).

5. The multifunctional ventilation device for green buildings according to claim 4 is characterized in that: A guide portion (3004) in an eight-shaped shape for guiding airflow is provided in the lower ventilator (3); the guide portion (3004) is located at the upper front portion of the scraping portion (3003).

6. The multifunctional ventilation device for green buildings according to claim 5, characterized in that: The surface of the pulling portion (10301) is provided with a structure for increasing friction.

7. The multifunctional ventilation device for green buildings according to claim 6, characterized in that: It also includes a sealing plate (401); the impurity discharge port (3002) of the lower ventilator (3) is rotatably connected to a sealing plate (401) that is controlled to rotate and is used to block external airflow; the sealing plate (401) opens downward.

8. The multifunctional ventilation device for green buildings according to claim 7, characterized in that: A slot having the same shape as the sealing plate (401) and contacting and accommodating the free end of the sealing plate (401) is provided on the lower side of the lower ventilator (3).

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