Building ventilation system

Abstract

The invention relates to the technical field of indoor total heat exchange, in particular to a building ventilation system which comprises an inner shell, an outer shell and a ventilation device. The inner cavity of the inner shell is divided into a plurality of exchange cavities by the partition pieces; the rear side ends of the swing assemblies are rotatably arranged in the inner shell, and each exchange cavity of each swing assembly is divided into a first convection cavity and a second convection cavity; through holes communicating with the convection cavities in the two sides are formed in the swing assemblies, and the through holes of the swing assemblies are covered with the heat exchange membranes correspondingly; a plurality of first exhaust ports and a plurality of first air inlets are formed in the front side face and the rear side face of the inner shell respectively, a plurality of second exhaust ports and a plurality of second air inlets are formed in the upper side face and the lower side face of the inner shell respectively, the first outer covers cover the upper side and the front side of the inner shell respectively, and the second outer covers cover the lower side and the rear side of the inner shell respectively. The building ventilation system aims at solving the problem that in the prior art, when a total heat exchanger is easily used, comfort is lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of indoor total heat exchange, and more specifically, to a building ventilation system. Background Art

[0002] A total heat exchanger usually refers to a fresh air and exhaust air ventilation device containing a total heat exchange core. Its working principle is: when the product is working, the indoor exhaust air and fresh air flow through the heat exchanger core in a positive cross manner. Due to the temperature difference and steam partial pressure difference between the airflows on both sides of the airflow separator, the two airflows present heat and mass transfer phenomena when passing through the separator, causing a total heat exchange process.

[0003] When the total heat exchanger is operating in the summer cooling period, the fresh air obtains coldness from the exhaust air, which lowers the temperature, and is simultaneously dried by the exhaust air, which reduces the humidity of the fresh air; when operating in the winter, the fresh air obtains heat from the exhaust air, which raises the temperature, and is simultaneously humidified by the exhaust air.

[0004] Heat recovery fresh air units GB / T21087-2020 defines a series of direct standards, such as: air supply volume, exhaust volume, noise, pressure loss, internal and external air leakage rate, exchange efficiency, etc. However, during actual installation and use, due to factors such as product installation errors, ventilation duct layout, and air supply and exhaust power, the air supply and exhaust volume often deviate in the positive and negative directions from the rated air volume. For example, the air supply volume is greater than the rated air supply volume while the exhaust volume is less than the rated exhaust volume, or the air supply volume is less than the rated air supply volume while the exhaust volume is greater than the rated exhaust volume, which ultimately leads to the problem of indoor and outdoor air pressure difference, reducing the comfort of use. Summary of the invention

[0005] The main purpose of the present invention is to provide a building ventilation system, aiming to solve the problem in the prior art that the total heat exchanger is easy to use but the comfort is reduced.

[0006] In order to solve the above technical problems, a building ventilation system is proposed, comprising: Inner shell, hollow setting; A plurality of partitions, the partitions extending in the front-to-back direction, the partitions being arranged parallel to each other, and the partitions being spaced from each other in the left-right direction and evenly arranged in the inner shell, the partitions dividing the inner cavity of the inner shell into a plurality of exchange cavities; A plurality of swing assemblies, the rear ends of the swing assemblies being rotatably disposed in the inner shell, each of the swing assemblies being disposed between two adjacent partitions, and each of the swing assemblies separating each of the exchange chambers into a first convection chamber and a second convection chamber; A plurality of heat exchange membranes, the swing component is provided with through holes respectively connected to the first convection cavity and the second convection cavity on both sides, and each of the heat exchange membranes is respectively covered on the through holes of each of the swing components; The front and rear sides of the inner shell are respectively provided with a plurality of first exhaust ports and a plurality of first air inlets at positions corresponding to the first convection chambers, and the upper and lower sides of the inner shell are respectively provided with a plurality of second exhaust ports and a plurality of second air inlets at positions corresponding to the second convection chambers; Two first outer covers, respectively covering the upper side and the front side of the inner shell, the first outer covers on the front side are respectively connected to the first exhaust ports, the first outer covers on the upper side are respectively connected to the second exhaust ports, the two first outer covers are both provided with negative pressure mechanisms, and the two first outer covers are respectively connected to the outside air and the indoor air; Two second outer covers are respectively covered on the lower side and the rear side of the inner shell, the second outer covers on the rear side are respectively connected to the first air inlets, the second outer covers on the lower side are respectively connected to the second air inlets, and the two second outer covers are respectively connected to the indoor air and the outside air.

[0007] In any of the above technical solutions, further, it also includes: The driving mechanism is arranged on the inner shell and connected with the swinging components, and is used for driving each of the swinging components to swing left and right.

[0008] In any of the above technical solutions, further, it also includes: A first pressure detection sensor is disposed between the first outer cover and the inner shell at the front side; A second pressure detection sensor is disposed between the first outer cover and the inner shell on the upper side; A controller is electrically connected to the first pressure detection sensor, the second pressure detection sensor and the driving mechanism respectively.

[0009] In any of the above technical solutions, further, the driving mechanism includes: A driving motor is arranged outside the inner shell; A threaded seat, fixedly arranged on the outer side of the inner shell, and provided with a threaded hole; A screw rod is rotatably arranged on the threaded seat and connected to the driving motor, and the driving motor is used to drive the screw rod to rotate and move the screw rod left and right at the same time; A plurality of first abutment members are evenly fixed on the rotating shaft and abut against the right side surface of each swing assembly respectively; A slide bar, slidable left and right, is arranged on the outside of the inner shell; A plurality of second abutment members are evenly fixed on the slide bar and abut against the left side surface of each swing assembly respectively; A magnetic force acting member, fixed on the slide rod; An electromagnet, arranged on the left side of the magnetic force acting member; The second controller is connected to the electromagnet and is used to control the on / off and direction of the electromagnet current. The spring is sleeved on the slide rod, and the left end thereof is connected to the magnetic force acting member.

[0010] In any of the above technical solutions, further, the screw rod is located at the front side of the inner shell, and each of the first abutment members extends into each of the first convection chambers through each of the first exhaust ports; The sliding rod is located at the lower side of the inner shell, and each of the second abutting members extends to each of the second convection chambers through each of the second air inlets.

[0011] In any of the above technical solutions, further, the swing assembly includes: A rotating seat is rotatably arranged in the inner shell through a pin shaft and is provided with a clamping groove; The first pressing plate and the second pressing plate are provided with the through holes corresponding to each other, and are overlapped and clamped in the clamping groove, and the heat exchange module is arranged between the first pressing plate and the second pressing plate.

[0012] In any of the above technical solutions, further, a protrusion is provided at the bottom of the rotating seat, and a groove corresponding to the protrusion is provided on the first pressing plate and the second pressing plate.

[0013] In any of the above technical solutions, further, the inner shell includes: A top side plate is horizontally arranged and provided with the plurality of second exhaust ports, and the first outer cover on the upper side is arranged on the upper side of the top side plate; The bottom side plate is horizontally arranged and provided with a plurality of the second air inlets, the second outer cover on the lower side is arranged on the lower side of the bottom side plate, and the plurality of the pins; A front side panel, in a C shape, vertically disposed between the top side panel and the bottom side panel, provided with the plurality of first exhaust ports, and the first outer cover on the front side is disposed on the front side of the front side panel; The rear side plate is provided with a first vertical section and a second vertical section, the first vertical section and the second vertical section are connected by a horizontal section, the rear side surface of the rotating seat is arranged in an arc shape, the first vertical section is arranged tangent to the rear side surface of the rotating seat, the front side surface of the second vertical section is arranged coplanar with the axis of the pin shaft, and the horizontal section is arranged coplanar with the top surface of the rotating seat.

[0014] The beneficial effects of the building ventilation system of the present invention are: 1. The inner shell is divided into a plurality of exchange chambers by a partition, and a swing assembly and a heat exchange membrane are arranged in each exchange chamber, and each exchange chamber is divided into a second convection chamber located on the left and a first convection chamber located on the right, and a plurality of first exhaust ports and first air inlets are respectively opened on the front and rear side walls of the inner shell corresponding to each first convection chamber, and a plurality of second exhaust ports and second air inlets are respectively opened on the upper and lower side walls of the inner shell corresponding to each second convection chamber, and a first outer cover and a second outer cover are arranged on the front, rear, upper and lower sides of the inner shell at the same time, and the inner shell is connected with the outside air and the indoor air through the first outer cover and the second outer cover and the pipeline, so that air is supplied to the indoor room in the front and rear directions of the inner shell, and air is exhausted to the outside in the upper and lower directions of the inner shell.

[0015] Since each swing component is provided with a heat exchange membrane, when ventilation is conducted to the indoor space through each first convection cavity, the energy or moisture in the air discharged to the outside through each second convection cavity will be exchanged through the through holes on each swing component. When the indoor temperature is lower than the outside temperature, the cold energy in the air discharged to the outside will pass through the heat exchange membrane and move to the first convection cavity on the right side of the swing component, and flow to the indoor space along the first convection cavity and the first outer cover on the front side, thereby realizing the recovery of cold energy. Similarly, when the indoor temperature is higher than the outside temperature, the heat energy in the air discharged to the outside can be recovered.

[0016] At the same time, the right side surface of each first exhaust port of the building ventilation system of the present invention is flush with the left side surface of the partition on the right side of each first convection chamber, and the left side surface of each first exhaust port extends to the front and rear vertical planes where the axis of the rotation axis of each corresponding swing assembly is located; the left side surface of each second air inlet and second exhaust port is flush with the right side surface of the partition on the left side of the second convection chamber, and the right side surface of each second air inlet and each second exhaust port extends to the front and rear vertical planes where the axis of the rotation axis of each corresponding driving assembly is located. In this way, the effective use area of ​​the first exhaust port, the second air inlet and the second exhaust port for gas to pass through can be adjusted when the swing assembly swings left and right, and the spatial volume of the first convection chamber can be increased and the spatial volume of the second convection chamber can be reduced at the same time, or the spatial volume of the first convection chamber can be reduced and the spatial volume of the second convection chamber can be increased at the same time.

[0017] Moreover, when there is a pressure difference between the air pressure in the first convection chamber and the second convection chamber, the gas in the convection chambers on both sides can drive the swing component to deflect and automatically correct the air pressure on both sides, thereby avoiding the indoor and outdoor pressure difference caused by the imbalance of air supply and exhaust volume, and ensuring the comfort of the indoor environment when the equipment is used.

[0018] 2. The building ventilation system of the present invention is also provided with a driving mechanism, which can drive the swing assembly to rotate left and right, can actively adjust the position of the swing assembly, and actively adjust the size of the first convection cavity and the second convection cavity.

[0019] At the same time, the driving mechanism is provided with a plurality of first abutments that can move left and right under the drive motor and a plurality of second abutments that can slide rightward under the action of the spring, and is provided with a magnetic force acting member, an electromagnet and a second controller that control the initial position of the left end of the spring. When there is no need to actively adjust the position of the swing assembly, the first abutment can be adjusted to the right to a position that does not affect the left and right swing of the swing assembly, and the current of the adsorption force acting member can be input to the electromagnet to pull the spring to the left to a position that does not act on the swing assembly. As a whole, the system can not only actively adjust the position of the swing assembly, but also realize the aforementioned automatic correction of the air pressure on both sides, thereby improving the performance.

[0020] Furthermore, since there is hard contact between the first abutting member and the swinging assembly, and there is elastic contact between the spring and the swinging assembly, the swinging angle of the swinging assembly can be accurately controlled by controlling the position of the first abutting member.

[0021] 3. The inner shell and the swing assembly of the building ventilation system of the present invention are arranged in an assembled manner. When the heat exchange membrane needs to be cleaned or replaced, the first outer cover can be disassembled first, and then the top side panel can be removed; and the pressure plate of the swing assembly is rotatably arranged on the bottom side panel of the inner shell in the form of a snap connection on a rotating seat. When disassembly is required, it can be directly pulled upwards, which reduces the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of a building ventilation system according to an embodiment of the present invention; Figure 2 is a schematic diagram of an exploded structure of a building ventilation system according to an embodiment of the present invention; Figure 3 It is a partial structural schematic diagram of a building ventilation system according to an embodiment of the present invention from a front lower side perspective; Figure 4 yes Figure 3 A schematic diagram of the local enlarged structure at point A in the middle; Figure 5It is a partial structural schematic diagram of a building ventilation system according to an embodiment of the present invention from a right front side perspective; Figure 6 It is a schematic diagram of the disassembly structure of a rear side panel and a swing assembly in a building ventilation system in an embodiment of the present invention.

[0024] The following are the descriptions of the reference numerals: 1. Inner shell; 101. Top side panel; 102. Bottom side panel; 103. Front side panel; 104. Rear side panel; 105. Left side panel; 106. First vertical section; 107. Second vertical section; 108. First convection chamber; 109. Second convection chamber; 110. Pin; 2. Separator; 3. Swing assembly; 301. Rotating seat; 302. First pressing plate; 303. Second pressing plate; 304. Protruding portion; 4. Heat exchange membrane; 5. first outer cover; 501. negative pressure mechanism; 6. Second outer cover; 7. Driving mechanism; 701. Driving motor; 702. Threaded seat; 703. Screw rod; 704. First abutting member; 705. Sliding rod; 706. Second abutting member; 707. Magnetic force member; 708. Electromagnet; 709. Spring. DETAILED DESCRIPTION

[0025] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0027] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] A building ventilation system of the present application is described in detail through the following embodiments.

[0031] In this embodiment, if Figures 1 to 6 As shown, the building ventilation system comprises: an inner shell 1, which is hollow; A plurality of partitions 2, the partitions 2 extending in the front-to-back direction, the partitions 2 being arranged parallel to each other, and the partitions 2 being spaced from each other in the left-right direction and evenly arranged in the inner shell 1, the partitions 2 dividing the inner cavity of the inner shell 1 into a plurality of exchange cavities; A plurality of swing assemblies 3, the rear end of the swing assemblies 3 being rotatably disposed in the inner shell 1, each swing assembly 3 being disposed between two adjacent partitions 2, and each swing assembly 3 separating each exchange chamber into a first convection chamber 108 and a second convection chamber 109; A plurality of heat exchange membranes 4, the swing assembly 3 is provided with through holes respectively connected to the first convection cavity 108 and the second convection cavity 109 on both sides, and each heat exchange membrane 4 is respectively covered on the through hole of each swing assembly 3; The front and rear sides of the inner shell 1 are respectively provided with a plurality of first exhaust ports and a plurality of first air inlets at positions corresponding to the first convection chambers 108, and the upper and lower sides of the inner shell 1 are respectively provided with a plurality of second exhaust ports and a plurality of second air inlets at positions corresponding to the second convection chambers 109; Two first outer covers 5 are respectively covered on the upper side and the front side of the inner shell 1, the first outer covers 5 on the front side are respectively connected to the first exhaust ports, and the first outer covers 5 on the upper side are respectively connected to the second exhaust ports. Both first outer covers 5 are provided with a negative pressure mechanism 501, and the two first outer covers 5 are respectively connected to the outside air and the indoor air; The two second outer covers 6 are respectively covered on the lower side and the rear side of the inner shell 1. The second outer covers 6 on the rear side are respectively connected to each first air inlet, and the second outer covers 6 on the lower side are respectively connected to each second air inlet. The two second outer covers 6 are respectively connected to the indoor air and the outside air.

[0032] In this technical solution, if Figure 2 As shown, the inner shell 1 includes: The top side plate 101 is horizontally arranged and is provided with a plurality of second exhaust ports, and the upper first outer cover 5 is arranged on the upper side of the top side plate 101; The bottom side plate 102 is horizontally arranged and provided with a plurality of second air inlets, the second outer cover 6 on the lower side is arranged on the lower side of the bottom side plate 102, and a plurality of pins 110; The front side plate 103 is C-shaped, vertically arranged between the top side plate 101 and the bottom side plate 102, and is provided with a plurality of first exhaust ports, and the front first outer cover 5 is arranged on the front side of the front side plate 103; The rear side plate 104 is provided with a first vertical section 106 and a second vertical section 107, and the first vertical section 106 and the second vertical section 107 are connected by a horizontal section. The rear side surface of the rotating seat 301 is arranged in an arc shape. The first vertical section 106 is arranged tangent to the rear side surface of the rotating seat 301, and the front side surface of the second vertical section 107 is arranged coplanar with the axis of the pin shaft 110, and the horizontal section is arranged coplanar with the top surface of the rotating seat 301.

[0033] The inner shell 1 is further provided with a left side panel 105, which covers the left sides of the top side panel 101, the bottom side panel 102, the front side panel 103 and the rear side panel 104, so as to cover the leftmost partition 2 in the inner shell 1, thereby improving the overall aesthetics. Similarly, a right side panel (not shown) may also be provided on the right side of the inner shell 1.

[0034] The partitions 2 are in the shape of rectangular plates, and each partition 2 is fixed in the inner shell 1 along a direction parallel to the vertical plane, and the front, back, top and bottom of the partitions 2 are respectively abutted against the front side plate 103, the rear side plate 104, the top side plate 101 and the bottom side plate 102, so that every two adjacent partitions 2 form a rectangular exchange chamber, and the distance between two adjacent partitions 2 is equal.

[0035] A pin shaft 110 for rotationally connecting each swing assembly 3 is provided on the bottom side plate 102 of the inner shell 1, and the pin shaft 110 is located in the middle of the bottom side of the rear portion of each exchange chamber. Each swing assembly 3 is initially installed in the inner shell 1 in a direction parallel to the vertical plane, dividing each exchange chamber into two spatial volumes of equal first convection chamber 108 and second convection chamber 109. The number of swing assemblies 3 is one less than the number of partitions 2.

[0036] It is worth mentioning that when the swing component 3 is snapped into the inner shell 1, the front and rear sides of the swing component 3 have a certain gap from the front inner side and the rear inner side of the inner shell 1 respectively, so as to provide the space required for the swing component 3 to swing left and right (that is, the length span in the front and rear direction is lengthened), or the front and rear sides of the swing component 3 are provided with chamfers to meet the change of the front and rear direction span required when the swing component 3 swings left and right, or the front and rear side panels of the inner shell 1 are made of a material with a certain deformation ability, so that the air leakage rate of the first convection cavity 108 and the second convection cavity 109 can be within a certain range.

[0037] Each swing assembly 3 is provided with a through hole for the first convection cavity 108 and the second convection cavity 109 on both sides to exchange energy and water vapor. The heat exchange membrane 4 is also called a non-porous film paper. There is a washable heat exchange membrane 4 available on the market. The heat exchange membrane 4 is fixed on the swing assembly 3 and covers the through hole. A plurality of rectangular first exhaust ports and a plurality of first air inlets are provided on the front and rear side surfaces of each first convection cavity 108 at positions corresponding to the front side plate 103 and the rear side plate 104, and the right side surfaces of the first air inlet and the first exhaust port are flush with the corresponding partition 2 on the right side, and the left side surfaces of the first air inlet and the first exhaust port extend to the vertical plane in the front-to-back direction where the pin shaft 110 of the corresponding swing assembly 3 is located (that is, the vertical plane at the left-right center position of the corresponding exchange cavity), so that when the front side of the swing assembly 3 swings to the left to one-half of its thickness, the first convection cavity 108 reaches the maximum spatial volume, and in this case, the first convection cavity 108 and the second convection cavity 109 on the left are still in a state of being disconnected from each other.

[0038] Similarly, the upper and lower sides of each second convection chamber 109 are provided with a plurality of rectangular second exhaust ports and a plurality of second air inlet ports at positions corresponding to the top side plate 101 and the bottom side plate 102, the left side surfaces of the second air inlet ports and the second exhaust ports are flush with the corresponding partition 2 on the left, and the right side surfaces of the second air inlet ports and the second exhaust ports extend to the vertical plane in the front-to-back direction where the pin shaft 110 of the corresponding swing assembly 3 is located (that is, the vertical plane at the left-right center position of the corresponding exchange chamber), so that when the front side of the swing assembly 3 swings to the right to one-half of its thickness, the second convection chamber 109 reaches the maximum spatial volume, and in this case, the first convection chamber 108 and the second convection chamber 109 on the left are still in a state of being disconnected from each other.

[0039] The space volume ratio of the first convection chamber 108 and the second convection chamber 109 on the left and right sides is adjusted by rotating the swing component 3. When there is an air pressure difference on both sides, the position of the swing component 3 can be automatically rotated under the influence of the air pressure to adjust the air pressure of the gas input into the room and output to the outside.

[0040] The first outer cover 5 and the second outer cover 6 are both arranged in a rectangular shape. The rear end of the first outer cover 5 on the front side covers each first exhaust port, and the front end is connected to the position in the room that needs ventilation through a pipeline, and a negative pressure mechanism 501 is provided on the pipeline between the ventilation position, and the negative pressure mechanism 501 provides the power required for the external gas to flow into the room through the first convection chamber 108. The negative pressure mechanism 501 is a household negative pressure machine, which can be purchased on the market. The front end of the second outer cover 6 on the rear side covers each first air inlet, and the rear end is connected to the external air through a pipeline.

[0041] The bottom end of the first outer cover 5 on the upper side covers each second exhaust port, and the upper end is connected to the outside through a pipe, and another negative pressure mechanism 501 is provided on the pipe connected to the outside, which provides the power required for the indoor gas to flow to the outside through the second convection chamber 109.

[0042] In this embodiment, if Figure 2 As shown, it also includes: The driving mechanism 7 is arranged on the inner shell 1 and connected to the swing assembly 3 to drive each swing assembly 3 to swing left and right.

[0043] In the present technical solution, the drive mechanism 7 is provided to actively intervene and adjust the air pressure of the input and output gas. For example, when the air pressure is low in rainy weather, the drive mechanism 7 drives the swing assembly 3 to rotate to the left, increasing the volume of the first convection chamber 108 and reducing the volume of the second convection chamber 109, increasing the amount of gas introduced into the room per unit time, and reducing the amount of gas output to the outside per unit time, thereby increasing the indoor air pressure. On the contrary, in weather with high air pressure, the drive mechanism 7 drives the drive assembly to rotate to the right, reducing the volume of the first convection chamber 108 and increasing the volume of the second convection chamber 109, thereby reducing the indoor air pressure.

[0044] In this embodiment, it also includes: A first pressure detection sensor (not shown) is disposed between the first outer cover 5 and the inner shell 1 at the front side; A second pressure detection sensor (not shown) is disposed between the first outer cover 5 and the inner shell 1 on the upper side; The first controller (not shown) is electrically connected to the first pressure detection sensor, the second pressure detection sensor and the driving mechanism 7 respectively.

[0045] In the present technical solution, a first pressure detection sensor (not shown in the figure) is arranged in the first outer cover 5 on the front side of the inner shell 1, and a second pressure detection sensor (not shown in the figure) is arranged in the first outer cover 5 on the upper side of the inner shell 1. The pressure of the gas flowing out of the first convection chamber 108 is detected by the first pressure detection sensor, and the pressure of the gas flowing out of the second convection chamber 109 is detected by the second pressure detection sensor, so as to adjust the rotation angle of the swing assembly 3 according to the detected pressure.

[0046] In this embodiment, if Figures 3 to 5 As shown, the driving mechanism 7 comprises: A driving motor 701 is arranged outside the inner shell 1; The threaded seat 702 is fixedly arranged on the outer side of the inner shell 1 and is provided with a threaded hole; The screw rod 703 is rotatably disposed on the threaded seat 702 and connected to the driving motor 701. The driving motor 701 is used to drive the screw rod 703 to rotate and move the screw rod 703 left and right; A plurality of first abutment members 704 are evenly fixed on the rotating shaft and abut against the right side surface of each swing assembly 3 respectively; A slide bar 705 is slidably disposed on the outer side of the inner shell 1; A plurality of second abutment members 706 are evenly fixed on the slide bar 705 and abut against the left side surface of each swing assembly 3 respectively; A magnetic force acting member 707 is fixed on the slide bar 705; The electromagnet 708 is arranged on the left side of the magnetic force acting member 707; The second controller (not shown) is connected to the electromagnet 708 and is used to control the on / off and direction of the current of the electromagnet 708. The spring 709 is sleeved on the slide bar 705 , and the left end thereof is connected to the magnetic force acting member 707 .

[0047] In the present technical solution, two threaded seats 702 are provided, one on the left and one on the right, fixed on the front side plate 103 of the inner shell 1, and located in the middle of the upper and lower parts. The screw rod 703 is rotatably provided in the two threaded seats 702. The driving motor 701 is a stepping motor, and is connected to the screw rod 703 through a reduction gear set. The first abutment member 704 is a circular sheet structure, and the number of the first abutment members 704 is equal to the number of the swing components 3 and the number of the second abutment members 706. The first abutment members 704 are evenly fixed on the screw rod 703, and each first abutment member 704 is located on the right side of each corresponding swing component 3. The sliding rod 705 is a round rod, which can be slid left and right at the bottom of the inner shell 1. The second abutment member 706 is provided in an L-shaped sheet structure, evenly fixed on the sliding rod 705, and each second abutment member 706 is located on the left side of each corresponding swing component 3.

[0048] The magnetic force acting member 707 is a magnet with an N pole or an S pole at the left end. When the electromagnet 708 is positively charged, the polarity of the right end is the S pole, and when the electromagnet 708 is negatively charged, the right end is the N pole. The electromagnet 708 is fixed on the left inner wall of the lower second outer cover 6 and is arranged corresponding to the magnetic force acting member 707. The spring 709 is sleeved on the slide bar 705 in the right area of ​​the magnetic force acting member 707, and the paralyzed left end is fixed on the magnetic force acting member 707. When the spring 709 maintains a freely extended length, there is a certain gap between the magnetic force acting member 707 and the electromagnet 708. An H-bridge circuit is arranged between the second controller (not shown) and the control circuit of the electromagnet 708, which can realize the input of positive or negative electricity to the electromagnet 708 through control.

[0049] This arrangement enables the building ventilation system to maintain two usage states: 1. Actively affecting the volume of the convection chambers on both sides; 2. Removing the influence of the abutments on both sides on the swing assembly 3, so that the swing assembly 3 can swing freely left and right.

[0050] In other technical solutions, the right end of the spring 709 is fixed on the slide bar 705. When the magnetic action member 707 is pulled to the left by the electromagnet 708, it can synchronously drive each second abutment member 706 away from the corresponding swing component 3, reducing the impact on the autonomous swing of the swing component 3.

[0051] The thickness of the gear at the connection between the drive motor 701 and the screw rod 703 needs to be thickened to ensure that the transmission between the drive motor 701 and the screw rod 703 can be guaranteed when the screw rod 703 moves left and right.

[0052] In this embodiment, the screw rod 703 is located at the front side of the inner shell 1, and each first abutment member 704 extends into each first convection cavity 108 through each first exhaust port; The sliding rod 705 is located at the lower side of the inner shell 1 , and each second abutment member 706 extends to each second convection cavity 109 through each second air inlet.

[0053] In this technical solution, the screw rod 703 is arranged at the front side of the inner shell 1, so that each first abutment member 704 can extend into the first convection chamber 108 through each first exhaust port, and there is no need to open a hole on the inner shell 1 for the first abutment member 704, thereby reducing the difficulty of processing. Similarly, the slide bar 705 is arranged at the lower side of the inner shell 1, and each second abutment member 706 extends into each second convection chamber 109 through each second air inlet. In this embodiment, if Figure 3 and Figure 6 As shown, the swing assembly 3 includes: The rotating seat 301 is rotatably arranged in the inner shell 1 through the pin shaft 110 and is provided with a clamping groove; The first pressing plate 302 and the second pressing plate 303 are provided with through holes corresponding to each other, and are overlapped and clamped in the clamping grooves. The heat exchange module is arranged between the first pressing plate 302 and the second pressing plate 303.

[0054] In the present technical solution, the rotating seat 301 is in the shape of a rectangular block, with a certain thickness of hollow in the middle, the thickness of the hollow is equal to the sum of the thickness of the first pressing plate 302 and the second pressing plate 303, and a pin hole is provided at the bottom of the rotating seat 301, and it can be rotatably clamped on the pin shaft 110 of the bottom side plate 102 through the pin hole. The first pressing plate 302 and the second pressing plate 303 are both set in the shape of rectangular flat plates, and the corners are provided with pin holes or threaded holes used for crimping and fixing the two, and the heat exchange membrane 4 is placed between the two. The first pressing plate 302 and the second pressing plate 303 are provided with M rows and N columns of through holes corresponding to each other, so that the energy and moisture in the first convection cavity 108 and the second convection cavity 109 on both sides can be exchanged.

[0055] In some technical solutions, the front side surfaces and the upper and lower side surfaces of the first pressure plate 302 and the second pressure plate 303 are provided with frames extending toward the seat or to the right to increase the area of ​​the air inlet or exhaust port that can be blocked by the swing assembly 3, and to increase the rotatable angle of the swing assembly 3, so as to facilitate increasing or decreasing the spatial volume ratio of the first convection cavity 108 or the second convection cavity 109 on both sides.

[0056] In this embodiment, a protrusion 304 is provided at the bottom of the rotating seat 301 , and grooves corresponding to the protrusion 304 are provided on the first pressing plate 302 and the second pressing plate 303 .

[0057] In the present technical solution, such a configuration can maintain the accurate position of the first pressing plate 302 and the second pressing plate 303 when they are engaged, and can also prevent the first pressing plate 302 and the second pressing plate 303 from being displaced in the front-to-back direction during use.

[0058] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A building ventilation system, characterized in that: include: An inner shell (1) having a hollow configuration; A plurality of partitions (2), the partitions (2) extending in the front-rear direction, the partitions (2) being arranged parallel to each other, and the partitions (2) being spaced apart from each other in the left-right direction and evenly arranged in the inner shell (1), the partitions (2) dividing the inner cavity of the inner shell (1) into a plurality of exchange cavities; a plurality of swing assemblies (3), the rear ends of the swing assemblies (3) being rotatably disposed in the inner shell (1), each of the swing assemblies (3) being disposed between two adjacent partitions (2), and each of the swing assemblies (3) separating each of the exchange chambers into a first convection chamber (108) and a second convection chamber (109); A plurality of heat exchange membranes (4), the swing component (3) being provided with through holes respectively communicating with the first convection cavity (108) and the second convection cavity (109) on both sides, and each of the heat exchange membranes (4) is respectively covered on the through holes of each of the swing components (3); The front and rear sides of the inner shell (1) are respectively provided with a plurality of first exhaust ports and a plurality of first air inlets at positions corresponding to the respective first convection chambers (108), and the upper and lower sides of the inner shell (1) are respectively provided with a plurality of second exhaust ports and a plurality of second air inlets at positions corresponding to the respective second convection chambers (109); Two first outer covers (5) are respectively covered on the upper side and the front side of the inner shell (1); the first outer covers (5) on the front side are respectively connected to the first exhaust ports; the first outer covers (5) on the upper side are respectively connected to the second exhaust ports; the two first outer covers (5) are both provided with a negative pressure mechanism (501), and the two first outer covers (5) are respectively connected to the outside air and the indoor air; Two second outer covers (6) are respectively covered on the lower side and the rear side of the inner shell (1); the second outer covers (6) on the rear side are respectively connected to each of the first air inlets; the second outer covers (6) on the lower side are respectively connected to each of the second air inlets; the two second outer covers (6) are respectively connected to the indoor air and the outside air.

2. The building ventilation system according to claim 1, characterized in that: Also includes: The driving mechanism (7) is arranged on the inner shell (1) and connected to the swinging components (3) to drive each of the swinging components (3) to swing left and right.

3. The building ventilation system according to claim 2, characterized in that: Also includes: a first pressure detection sensor, arranged between the first outer cover (5) and the inner shell (1) at the front side; a second pressure detection sensor, arranged between the first outer cover (5) and the inner shell (1) on the upper side; The first controller is electrically connected to the first pressure detection sensor, the second pressure detection sensor and the driving mechanism (7) respectively.

4. The building ventilation system according to claim 2, characterized in that: The driving mechanism (7) comprises: A driving motor (701) is arranged outside the inner shell (1); A threaded seat (702) is fixedly arranged on the outside of the inner shell (1) and is provided with a threaded hole; A screw rod (703) is rotatably disposed on the threaded seat (702) and connected to the driving motor (701). The driving motor (701) is used to drive the screw rod (703) to rotate and move the screw rod (703) left and right at the same time. A plurality of first abutment members (704) are evenly fixed on the rotating shaft and respectively abut against the right side surface of each swing assembly (3); A sliding rod (705) is arranged on the outside of the inner shell (1) so as to be slidable left and right; A plurality of second abutment members (706) are evenly fixed on the slide bar (705) and respectively abut against the left side surface of each swing assembly (3); A magnetic force acting member (707) is fixed on the sliding rod (705); An electromagnet (708) is arranged on the left side of the magnetic force acting member (707); A second controller is connected to the electromagnet (708) and is used to control the on / off and direction of the current of the electromagnet (708) The spring (709) is sleeved on the slide bar (705), and the left end thereof is connected to the magnetic force acting member (707).

5. The building ventilation system according to claim 4, characterized in that: The screw rod (703) is located at the front side of the inner shell (1), and each of the first abutment members (704) extends into each of the first convection chambers (108) through each of the first exhaust ports; The sliding rod (705) is located at the lower side of the inner shell (1), and each of the second abutment members (706) extends to each of the second convection chambers (109) through each of the second air inlets.

6. The building ventilation system according to claim 1, characterized in that: The swing assembly (3) comprises: A rotating seat (301) is rotatably arranged in the inner shell (1) via a pin shaft (110) and is provided with a clamping groove; The first pressing plate (302) and the second pressing plate (303) are provided with through holes corresponding to each other and are overlapped and clamped in the clamping groove. The heat exchange module is arranged between the first pressing plate (302) and the second pressing plate (303).

7. The building ventilation system according to claim 6, characterized in that: The bottom of the rotating seat (301) is provided with a protrusion (304), and the first pressing plate (302) and the second pressing plate (303) are provided with grooves corresponding to the protrusion (304).

8. The building ventilation system according to claim 6, characterized in that: The inner shell (1) comprises: A top side plate (101) is horizontally arranged and provided with the plurality of second exhaust ports, and the first outer cover (5) on the upper side is arranged on the upper side of the top side plate (101); A bottom side plate (102) is horizontally arranged and provided with a plurality of the second air inlets, the second outer cover (6) on the lower side is arranged on the lower side of the bottom side plate (102), and the plurality of the pins (110); The front side plate (103) is C-shaped, vertically arranged between the top side plate (101) and the bottom side plate (102), and is provided with the plurality of first exhaust ports, and the first outer cover (5) on the front side is arranged on the front side of the front side plate (103); The rear side plate (104) is provided with a first vertical section (106) and a second vertical section (107), wherein the first vertical section (106) and the second vertical section (107) are connected via a horizontal section, the rear side surface of the rotating seat (301) is arranged in an arc shape, the first vertical section (106) is arranged tangent to the rear side surface of the rotating seat (301), the front side surface of the second vertical section (107) is arranged coplanar with the axis of the pin shaft (110), and the horizontal section is arranged coplanar with the top surface of the rotating seat (301).

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