Fresh air equipment

Abstract

The invention relates to the technical field of air conditioning, and provides fresh air equipment which comprises a shell, a control device and pipe connecting flanges, air openings are formed in the first side wall, in the first direction, of the shell, the control device is arranged outside the first side wall, the pipe connecting flanges are arranged on the outer side of at least one air opening, and the pipe connecting flanges communicate with the corresponding air openings. According to the fresh air equipment, the control device and the pipe connecting flange, the space of the fresh air equipment in the first direction is fully utilized, the size of the fresh air equipment can be reduced, and the miniaturization requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, and in particular to a fresh air equipment. BACKGROUND

[0002] This section is intended to provide background or context to the embodiments of the application. The description herein does not constitute admission that the prior art is prior art nor that the prior art is part of the common general knowledge of those working in the field of the application.

[0003] The fresh air equipment is a kind of efficient air purification equipment, on the one hand, the indoor dirty airflow is discharged to the outdoor, on the other hand, the fresh airflow is sucked into the indoor. The fresh air equipment usually includes a control device for regulating the operation of each component in the fresh air equipment. In the related art, the control device is arranged in the shell of the fresh air equipment, and the control device occupies the internal space of the shell, so that the size of the shell is large, resulting in a large size of the fresh air equipment. SUMMARY

[0004] Therefore, the present application aims to provide a fresh air equipment which can reduce the size of the fresh air equipment and meet the miniaturization requirement.

[0005] The embodiments of the present application provide a fresh air equipment, comprising:

[0006] a shell, a wind port is formed on a first side wall of the shell along a first direction, wherein the first direction is perpendicular to the up-down direction;

[0007] a control device arranged outside the first side wall;

[0008] a pipe flange, the outer side of at least one of the wind ports is provided with the pipe flange, and the pipe flange is in communication with the corresponding wind port.

[0009] In some embodiments, the first side wall is formed with two wind ports, and the two wind ports are air supply ports and air return ports respectively, and at least one of the air supply ports and the air return ports is provided with the pipe flange.

[0010] In some embodiments, the air supply ports and the air return ports are spaced apart along a second direction, and the control device is located between the air supply ports and the air return ports, wherein the first direction, the second direction and the up-down direction are perpendicular to each other.

[0011] In some embodiments, the fresh air equipment comprises a heat exchange core located in the shell, the heat exchange core extends along the second direction, and the shell is formed with a fresh air port and an exhaust port on a second side wall along the first direction, wherein the first direction, the second direction and the up-down direction are perpendicular to each other.

[0012] In some embodiments, the projection of the control device is located within the projection range of the first side wall, with a plane perpendicular to the first direction as the projection plane.

[0013] In some embodiments, the control device is not protruded from the flange of the first side wall.

[0014] In some embodiments, the control device comprises a bracket, a control board, a carrier and electrical components, the control board is arranged on one side of the bracket along a first direction, the carrier is arranged on a side of the control board away from the bracket along the first direction, and at least one of the electrical components is arranged on the carrier.

[0015] In some embodiments, the electrical components comprise a terminal block, and the terminal block is arranged on the carrier.

[0016] In some embodiments, the control device comprises a grounding plate, a part of the grounding plate is connected with the carrier, another part of the grounding plate is connected with the first side wall, and the terminal block is arranged on the grounding plate.

[0017] In some embodiments, the control device comprises a cable, a surface of the carrier away from the control board along the first direction forms a cable slot, and the cable is contained in the cable slot.

[0018] In some embodiments, the cable comprises a power line, a wire controller line and a communication line, the cable slot comprises a plurality of sub-slots, and the power line, the wire controller line and the communication line are arranged in one of the sub-slots respectively.

[0019] In some embodiments, the control device comprises a cable clamp, one side of the cable slot away from the control board along the first direction has a cable outlet, and the cable clamp selectively covers or avoids at least part of the cable outlet.

[0020] In some embodiments, the electrical components comprise an inductor, a capacitor and a transformer, and at least one of the inductor, the capacitor and the transformer is arranged on the carrier.

[0021] In some embodiments, the carrier is formed with a heat dissipation hole.

[0022] In some embodiments, a hole wall surface of the heat dissipation hole has a reinforcing rib extending towards a side where the control board is located.

[0023] The fresh air equipment provided by the embodiments of the present application has the flange of the connector and the control device arranged outside the first side wall, on the one hand, the internal space of the shell is not occupied, more layout space is provided for other components, and the control device and the flange of the connector can be assembled simultaneously by the operator. On the other hand, the control device and the flange of the connector make full use of the space along the first direction of the fresh air equipment, the structure of the control device and the flange of the connector is compact, the size of the fresh air equipment along other directions can be avoided to be increased, so that the overall size of the fresh air equipment is reduced, and the miniaturization requirement is met. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a fresh air device provided in some embodiments of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure shown in V1 view;

[0026] Figure 3 This is a schematic diagram of the structure of a fresh air device provided in other embodiments of this application;

[0027] Figure 4 Exploded views of control devices provided in some embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the structure of the control device provided in some embodiments of this application;

[0029] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 for Figure 5 Enlarged view at point B in the middle, where L represents the length of the heat dissipation hole and W represents the width of the heat dissipation hole;

[0031] Figure 8 for Figure 3 Cross-sectional view at position aa;

[0032] Figure 9 The present application provides structural schematic diagrams of the separators for some embodiments.

[0033] Explanation of reference numerals in the attached figures

[0034] 1000 fresh air units;

[0035] 100 outer casing; 100a heat exchange chamber; 100a return air duct; 100a air supply duct; 100a2 fresh air duct; 100a3 exhaust air duct; 100a4 fan chamber; 100b air supply chamber; 100b1 exhaust air chamber; 100b2.

[0036] First sidewall 110; return air inlet 110a; supply air inlet 110b;

[0037] Second side wall 120; Fresh air inlet 120a; Exhaust air outlet 120b;

[0038] Control device 200; First area 200a; Second area 200b;

[0039] Bracket 210; Control panel 220;

[0040] Support frame 230; cable tray 230a; sub-slot 230a1; cable outlet 230a2; heat dissipation hole 230b; reinforcing rib 230b1;

[0041] Electrical component 240; terminal block 241;

[0042] Grounding plate 250; Cable 260; Wire clamp 270; Electrical control box 280;

[0043] 290 wire guide clip; 291 clamping arm;

[0044] 300mm flange; 400mm heat exchange core; 500mm fan;

[0045] Separator 600; Separator plate 610; Isolation plate 620. Detailed Implementation

[0046] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0047] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features / embodiments can form different implementation methods. To avoid unnecessary repetition, the various possible combinations of various specific technical features / embodiments in this application will not be described separately. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] It should be noted that in this application, "down" refers to the direction towards the ground, and "up" is the opposite direction. The first direction, the second direction, and the up-down direction are perpendicular to each other and together constitute a three-dimensional vertical coordinate system.

[0049] In related technologies, if the control device is placed outside the housing, for example, the air vent of the housing is equipped with a pipe flange, the lifting lug and the pipe flange are located on different side walls of the housing, and the control device is located on the side wall where the lifting lug of the housing is located, then the control device and the pipe flange will increase the size of the fresh air equipment in both directions, resulting in a large overall size, making it difficult to install the fresh air equipment in scenarios with limited installation space.

[0050] Please see Figures 1 to 9This application provides a fresh air device 1000, including a housing 100, a control device 200 and a connecting flange 300. The housing 100 has an air vent formed on a first side wall 110 along a first direction. The control device 200 is disposed outside the first side wall 110. A connecting flange 300 is disposed on the outside of at least one air vent, and the connecting flange 300 is connected to the corresponding air vent.

[0051] The connecting flange 300 can be used to connect external air ducts, enhancing the connection stability between the air duct and the fresh air equipment 1000, so that airflow can enter the housing 100 through the air outlet or exit from the housing 100.

[0052] A connecting flange 300 is provided on the outer side of the air vent; that is, the connecting flange 300 is located outside the first side wall 110 and does not occupy the internal space of the housing 100. For an example, please refer to [reference needed]. Figure 1 The flange 300 extends along the first direction, thus guiding the airflow and allowing it to flow smoothly.

[0053] The control device 200 is used to regulate the operation of various components within the fresh air system 1000. The control device 200 can perform at least one of the following functions: turning on the fresh air system 1000, stopping the fresh air system 1000, and selecting the operating mode of the fresh air system 1000. For example, if there is a lot of stale air indoors, the control device 200 can receive control signals from the user and adjust the airflow accordingly, quickly expelling stale indoor air through the outer casing 100 to the outside while simultaneously introducing fresh outdoor air into the room through the outer casing 100, thus improving the user experience.

[0054] The fresh air equipment 1000 provided in this embodiment has its connection flange 300 and control device 200 all located outside the first side wall 110. This design avoids occupying internal space within the outer casing 100, providing more layout space for other components and facilitating simultaneous assembly of the control device 200 and connection flange 300 by operators. Furthermore, the control device 200 and connection flange 300 fully utilize the space of the fresh air equipment 1000 along the first direction, resulting in a compact structure that avoids increasing the dimensions of the fresh air equipment 1000 along other directions, thereby reducing the overall size of the fresh air equipment 1000 and meeting miniaturization requirements.

[0055] The fresh air system 1000 provided in this application embodiment can be installed on the ceiling or a suspended ceiling panel. The suspended ceiling panel can divide the indoor space into a suspended ceiling space and a living space. Users carry out daily life in the living space, while the suspended ceiling space is not only used for beautifying the interior decoration but also for installing other equipment. It is understood that the indoor space includes, but is not limited to, balconies, bathrooms, and kitchens, and can be a large-sized residence, a small-sized residence, or other types of production or living environments.

[0056] In this embodiment of the application, when the fresh air equipment 1000 is installed on a ceiling or suspended ceiling panel, taking the outer shell 100 as approximately hexahedral in shape, the vertical direction can be the thickness direction of the outer shell 100, one of the first and second directions can be the width direction of the outer shell 100, and the other of the first and second directions can be the length direction of the outer shell 100. Taking the fresh air equipment 1000 installed in a suspended ceiling space as an example, the dimension of the suspended ceiling space along the vertical direction is much smaller than the dimension of the suspended ceiling space along the first and second directions, and the thickness direction of the outer shell 100 is along the vertical direction, which facilitates the installation of the fresh air equipment 1000 into the suspended ceiling space.

[0057] In some embodiments, please refer to Figure 1 and Figure 2 The first sidewall 110 has two air vents: a supply air vent 110b and a return air vent 110a. At least one of the supply air vent 110b and the return air vent 110a is provided with a connecting flange 300. The return air vent 110a is used to introduce indoor airflow into the housing 100. The supply air vent 110b is used to exhaust outdoor airflow from the housing 100. For example, both the supply air vent 110b and the return air vent 110a are provided with connecting flanges 300, thus improving the smoothness of indoor airflow under the guiding effect of the connecting flanges 300. In other words, the first sidewall 110 has a return air inlet 110a and a supply air inlet 110b. The return air inlet 110a and the supply air inlet 110b are close to the indoor side of the fresh air equipment 1000. In this way, the temperature difference between the side where the first sidewall 110 is located and the indoor environment is small, and the first sidewall 110 is less likely to condense water droplets in the air, thereby reducing the risk of the control device 200 coming into contact with condensate.

[0058] In some embodiments, please refer to Figure 1 and Figure 2 The supply air vent 110b and return air vent 110a are spaced apart along the second direction, and the control device 200 is located between the supply air vent 110b and the return air vent 110a. In this way, the control device 200, the supply air vent 110b, and the return air vent 110a make full use of the space of the fresh air equipment 1000 along the first direction, and the control device 200 does not additionally increase the size of the fresh air equipment 1000 along the first direction.

[0059] In some embodiments, please refer to Figure 3 The fresh air device 1000 includes a heat exchange core 400 located inside the housing 100, the heat exchange core 400 extending along a second direction, and the housing 100 having a fresh air inlet 120a and an exhaust air outlet 120b formed on a second sidewall 120 along a first direction.

[0060] The heat exchange core 400 is used for heat exchange between indoor and outdoor airflow, which can effectively improve heat exchange efficiency and reduce energy consumption. The fresh air inlet 120a is used to introduce outdoor airflow into the housing 100, and the exhaust air outlet 120b is used to exhaust indoor airflow from the housing 100.

[0061] The extension of the heat exchange core 400 along the second direction means that airflow enters or exits the heat exchange core 400 circumferentially around the second direction. For example, the extension of the heat exchange core 400 along the second direction can be achieved by multiple heat exchange medium plates of the heat exchange core 400 being stacked at intervals along the second direction. The heat exchange medium plates are used for heat exchange between indoor and outdoor airflow. A space is formed between two adjacent heat exchange medium plates. Two adjacent spaced spaces can allow indoor and outdoor airflow to pass through, respectively, and the indoor and outdoor airflows exchange heat through the heat exchange medium plates. That is, the indoor and outdoor airflows enter and exit the heat exchange core 400 circumferentially around the second direction. The heat exchange medium plates can be used for heat exchange but do not allow airflow.

[0062] If the heat exchange core 400 extends vertically, meaning multiple heat exchange medium plates are stacked vertically, it will greatly increase the thickness of the outer casing 100 in the vertical direction, making it difficult to assemble the entire unit into an installation space with a small vertical height dimension. If the vertical dimension of the heat exchange core 400 is reduced to accommodate the small vertical height dimension of the installation space, it will result in too few heat exchange medium plates or too small spacing, leading to poor heat exchange performance.

[0063] For example, outdoor airflow enters the room sequentially through fresh air inlet 120a, heat exchange core 400, and supply air outlet 110b; indoor airflow is discharged to the outside sequentially through return air outlet 110a, heat exchange core 400, and exhaust air outlet 120b. Heat exchange occurs between the outdoor and indoor airflows at the heat exchange core 400. For instance, the warmer outdoor airflow and the cooler indoor airflow exchange heat within the heat exchange core 400, allowing the indoor airflow to absorb heat from the outdoor airflow and deliver comfortable outdoor airflow into the room, thus altering the indoor temperature and / or humidity and improving the user experience.

[0064] In this embodiment, the extension direction of the heat exchange core 400 and the arrangement direction of the air supply outlet 110b, the control device 200, and the return air outlet 110a are consistent. The length of the heat exchange core 400 can be relatively large to ensure the heat exchange effect. The air supply outlet 110b, the control device 200, and the return air outlet 110a are arranged along the first direction, which can make full use of the size of the outer shell 100 along the first direction, while avoiding additional increase in the size of the outer shell 100 along the vertical and second directions. The structure is compact. Under the premise that the fresh air equipment 1000 has a good heat exchange effect, the overall size is small, which meets the miniaturization requirements.

[0065] In some embodiments, the heat exchange core 400 includes a frame for mounting heat exchange medium plates to maintain a spacing between adjacent heat exchange medium plates.

[0066] The heat exchange medium can adopt the structure of existing technology. For example, the heat exchange medium can be made of fiber, aluminum, steel or resin, etc.

[0067] In some embodiments, please refer to Figure 2 With the plane perpendicular to the first direction as the projection plane, the projection of the control device 200 is located within the projection range of the first sidewall 110. That is to say, in the second direction and / or along the vertical direction, the control device 200 will not protrude from the first sidewall 110, so that the control device 200 will not additionally increase the size of the fresh air equipment 1000 along the second direction and / or along the vertical direction.

[0068] In some embodiments, please refer to Figure 1 In the first direction, the control device 200 does not protrude from the connecting flange 300 located on the first sidewall 110. That is, in the first direction, the length of the control device 200 is less than the length of the connecting flange 300, thus the control device 200 does not additionally increase the size of the fresh air unit 1000 along the first direction. For some embodiments, please refer to... Figure 4 and Figure 5 The control device 200 includes a bracket 210, a control board 220, a support frame 230, and electrical components 240. The control board 220 is disposed on one side of the bracket 210 along a first direction, and the support frame 230 is disposed on the side of the control board 220 away from the bracket 210 along the first direction. At least one of the electrical components 240 is disposed on the support frame 230. Specifically, the bracket 210 is disposed outside the first sidewall 110 and is used to fix the control board 220. The support frame 230 is used to fix at least one electrical component 240.

[0069] For example, please refer to Figure 4 and Figure 5 The control device 200 is divided into a first region 200a and a second region along a first direction by the support frame 230, with the control panel 220 located in the first region 200a and at least one electrical component 240 located in the second region 200b.

[0070] Compared to related technologies where the control board 220 and electrical components 240 are generally arranged in the same plane, in this embodiment, by increasing the size along the first direction through the support frame 230, the control board 220 and at least one electrical component 240 are arranged in a double layer within the control device 200, which can reduce the size of the control device 200 along the second direction and / or the vertical direction. The layered arrangement of the control board 220 and electrical components 240 along the first direction can reduce the overall size of the control device 200, thereby reducing the space occupied by the control device 200 and meeting the miniaturization requirements of the fresh air equipment 1000.

[0071] Taking the fresh air equipment 1000 installed in the ceiling space as an example, the ceiling panel has an access panel, and the control device 200 faces the access panel. That is to say, by utilizing the characteristic that the control panel 220 and electrical components 240 are arranged at intervals along the first direction, the size of the projection of the control device 200 on the projection plane perpendicular to the first direction can be reduced. In this way, the size of the access panel opening can be reduced, and the visual aesthetics can be improved.

[0072] For example, please refer to Figure 1 and Figure 2 The control device 200 includes an electrical control box 280, which is disposed on the first side wall 110. The bracket 210, control board 220, support frame 230, and electrical components 240 are all located within the electrical control box 280. In this way, the electrical control box 280 can protect the bracket 210, control board 220, support frame 230, and electrical components 240, preventing impurities and / or water from entering the electrical control box 280 and causing damage to the control board 220 and electrical components 240. With components such as the bracket 210 concealed within the electrical control box 280, the fresh air equipment 1000 has a better aesthetic appearance.

[0073] In one embodiment, the support frame 230 can be made of plastic, which is easy to process and mold, and has good structural strength. In addition, the support frame 230 also has an insulating function, which can reduce the safety risks of the control device 200 and protect the operators.

[0074] In some embodiments, the electrical component 240 includes a terminal block 241 disposed on the support frame 230. The terminal block 241 is used to connect external wiring. For example, please refer to [reference needed]. Figure 4 and Figure 5 Terminal block 241 is located in the second area 200b. This provides good visibility of terminal block 241, allowing workers to install and remove it and external wiring without removing the support frame 230, thus improving work efficiency. It also facilitates maintenance and repair of terminal block 241 and external wiring.

[0075] In some embodiments, the control device 200 includes a cable 260, and a cable tray 230a is formed on the surface of the support frame 230 away from the control board 220 along a first direction, in which the cable 260 is housed. The cable 260 is connected to the terminals of the terminal block 241. For an example, please refer to [reference needed]. Figure 5 The cable trays 230a and terminal blocks 241 are spaced apart vertically. As the cable trays 230a extend vertically, the cable 260 maintains a relatively straight posture and avoids bending or tangling under the guidance and restraint of the cable trays 230a. Furthermore, it prevents the cable 260 from contacting other components and causing damage, enhancing the protection of the cable 260. The cable 260 is routed from the surface of the support frame 230 away from the control board 220, allowing for cable removal without disassembling the support frame 230, facilitating wiring and disconnection, and simplifying production, installation, and maintenance.

[0076] In some embodiments, cable 260 includes a power cord, a wired controller cord, and a communication cord. Specifically, the power cord can be connected to terminal block 241, and then connected to control board 220 via a wire to supply power to control board 220. Both the wired controller cord and the communication cord can be directly connected to control board 220 and then routed through cable tray 230a. In this way, cable 260 is laid neatly and safely, facilitating installation, removal, and maintenance by personnel.

[0077] The wired controller cable is the cable 260 that connects the control board 220 and the wired controller. The wired controller is an external electronic device used to control the fresh air equipment 1000, and can be used to control the start / stop and / or mode selection of the fresh air equipment 1000, etc. The wired controller can be a wired control device of existing technology.

[0078] The type of communication cable is not limited, but includes, but is not limited to, the 485 communication cable.

[0079] In some embodiments, the wiring trough 230a includes multiple sub-troughs 230a1, with power cables, controller cables, and communication cables each disposed in a sub-trough 230a1. For example, please refer to [reference needed]. Figure 6 Multiple sub-slots 230a1 are spaced apart along the second direction. In this way, power lines, wired controller lines, and communication lines can be laid in parallel in the vertical direction, which can avoid tangling and knotting between cables 260 and improve the safety of the control device 200.

[0080] In some embodiments, please refer to Figure 4 and Figure 5The control device 200 includes a ground plane 250, a portion of which is connected to the support frame 230, and another portion of which is connected to the first side wall 110. A terminal block 241 is disposed on the ground plane 250. Thus, by connecting the ground plane 250 to the housing 100 for grounding, the control board 220 is grounded to the external power supply, reducing costs and improving the safety of the control device 200.

[0081] In one embodiment, the ground plane 250 can be a sheet metal part. Thus, the ground plane 250 has high structural strength and is easy to form.

[0082] For example, the housing 100 may be made of metal. For instance, the housing 100 may be a sheet metal part.

[0083] In some embodiments, please refer to Figure 5 and Figure 6 The control device 200 includes a wire clamp 270. A cable tray 230a has a cable outlet 230a2 on the side of its path away from the control board 220 along a first direction. The wire clamp 270 selectively blocks or avoids at least a portion of the cable outlet 230a2. Exemplarily, a cable 260 can enter or exit the cable tray 230a through the cable outlet 230a2. The wire clamp 270 is used to secure the cable 260, enhancing its stability.

[0084] In one embodiment, the wire clamp 270 can be detachably connected to the support frame 230. For example, one end of the wire clamp 270 can be rotatably connected to the support frame 230, and the other end of the wire clamp 270 can be snapped into the support frame 230.

[0085] In some embodiments, please refer to Figure 4 and Figure 5 The control device 200 includes multiple cable guide clips 290, each clip including two clamping arms 291, which clamp the cable 260 on both sides. Thus, the cable guide clips 290 guide the cable 260, improving its neatness during installation, while the clamping arms 291 enhance its stability. The clamping arms 291 have a relatively simple structure, reducing design and manufacturing complexity.

[0086] In some embodiments, electrical component 240 includes a reactor, a capacitor, and a transformer, with at least one of the reactor, capacitor, and transformer disposed on the support frame 230. The reactor is used to improve the voltage distribution of the control device 200. The capacitor is used to reduce coupling interference between circuits within the control device 200. The transformer is used to change the voltage and current of the external power supply to protect the control device 200.

[0087] For example, please refer to Figure 4The reactors, capacitors, and transformers are all located in the second area 200b. This serves two purposes: firstly, the insulation provided by the support frame 230 reduces the safety risks associated with the electrical components 240, protecting workers and users; secondly, it facilitates the installation, removal, and maintenance of the electrical components 240 by workers.

[0088] In some embodiments, please refer to Figure 4 and Figure 7 The support frame 230 has heat dissipation holes 230b. Specifically, the heat dissipation holes 230b connect the first region 200a and the second region 200b, and the heat generated by the control board 220 can be smoothly discharged through the heat dissipation holes 230b, reducing the operating temperature of the control device 200 and protecting the operational reliability of the control device 200.

[0089] In one embodiment, please refer to Figure 7 With a plane perpendicular to the first direction as the projection surface, the projected shape of the heat dissipation hole 230b is approximately rectangular, with a length-to-width ratio of 4:3. In this embodiment, the length direction of the heat dissipation hole 230b can be consistent with the vertical direction, and the width direction of the heat dissipation hole 230b can be consistent with the second direction.

[0090] In some embodiments, please refer to Figure 7 The wall surface of the heat dissipation hole 230b has reinforcing ribs 230b1 extending toward the side where the control plate 220 is located. In this way, while meeting the heat dissipation requirements of the control device 200, the structural stability of the support frame 230 can be enhanced. For example, the length of the reinforcing rib 230b1 is not less than 5 mm, such as 5.0 mm, 5.2 mm, 5.4 mm, 5.8 mm, and 6.0 mm, etc. By setting appropriate dimensions, the structural stability of the support frame 230 can be satisfied.

[0091] Please see Figure 8 and Figure 9 The fresh air equipment 1000 includes a fan 500 and a partition 600. The partition 600 defines the space inside the housing 100 as a heat exchange chamber 100a and a fan chamber 100b. The heat exchange core 400 is located in the heat exchange chamber 100a, and the fan 500 is located in the fan chamber 100b. The partition 600 is an integrally formed structure.

[0092] Indoor airflow is often referred to as return air, while outdoor airflow is often referred to as fresh air. The Fresh Air System 1000 integrates both fresh air and exhaust functions. The fresh air function allows fresh outdoor air to enter the room, while the exhaust function removes stale indoor air from the room.

[0093] The 500 fan is used to drive the flow of outdoor and indoor air.

[0094] The fresh air equipment 1000 provided in this application embodiment has a one-piece molded partition 600, which can save assembly steps of the partition 600. The one-piece partition 600 defines the space inside the outer shell 100 as the heat exchange chamber 100a and the fan chamber 100b. In other words, one partition 600 can define the fan chamber 100b and the heat exchange chamber 100a, which can avoid problems such as misassembly or omission of multiple plates and improve assembly efficiency.

[0095] In some embodiments, please refer to Figure 3 , Figure 8 and Figure 9 The heat exchange core 400 extends along the second direction. The separator 600 includes a separator plate 610 and an isolation plate 620. The separator plate 610 and the isolation plate 620 are respectively connected to the two sides of the heat exchange core 400 along the first direction. The separator plate 610 divides the heat exchange chamber 100a into a return air channel 100a1 and a supply air channel 100a2. The isolation plate 620 divides the heat exchange chamber 100a into a fresh air channel 100a3 and an exhaust air channel 100a4.

[0096] The two surfaces of the partition plate 610 in the thickness direction can be portions of the return air duct 100a1 and the supply air duct 100a2, respectively. The return air duct 100a1 is used to transport indoor airflow to the heat exchange core 400; that is, the return air duct 100a1 is used to transport indoor airflow before heat exchange. The supply air duct 100a2 is used to transport outdoor airflow from the heat exchange core 400; that is, the supply air duct 100a2 is used to transport outdoor airflow after heat exchange. The return air duct 100a1 and the supply air duct 100a2 are independent of each other; that is, indoor airflow in the return air duct 100a1 does not enter the supply air duct 100a2, and outdoor airflow in the supply air duct 100a2 does not enter the return air duct 100a1; there is no gas flow between the return air duct 100a1 and the supply air duct 100a2.

[0097] The two surfaces of the partition plate 620 in the thickness direction can be portions of the surface of the fresh air duct 100a3 and the surface of the exhaust air duct 100a4, respectively. The fresh air duct 100a3 is used to transport outdoor airflow to the heat exchange core 400; that is, the fresh air duct 100a3 is used to transport outdoor airflow before heat exchange. The exhaust air duct 100a4 is used to transport indoor airflow from the heat exchange core 400; that is, the exhaust air duct 100a4 is used to transport indoor airflow after heat exchange. The fresh air duct 100a3 and the exhaust air duct 100a4 are independent of each other; that is, outdoor airflow in the fresh air duct 100a3 does not enter the exhaust air duct 100a4, and indoor airflow in the exhaust air duct 100a4 does not enter the fresh air duct 100a3; there is no gas flow between the fresh air duct 100a3 and the exhaust air duct 100a4.

[0098] In this embodiment, the heat exchange core 400 extends along the second direction. This allows for a larger dimension of the heat exchange core 400 along the second direction without affecting the thickness of the outer shell 100 in the vertical direction. This allows the thickness of the outer shell 100 in the vertical direction to be designed as needed without affecting heat exchange efficiency, satisfying both installation and heat exchange requirements. The partition plate 610 divides a portion of the space within the heat exchange chamber 100a into independent return air channels 100a1 and supply air channels 100a2. The partition plate 620 divides a portion of the space within the heat exchange chamber 100a into independent fresh air channels 100a3 and exhaust air channels 100a4, resulting in a simple structure. The length directions of the fresh air channel 100a3, exhaust air channel 100a4, return air channel 100a1, supply air channel 100a2, and heat exchange core 400 can all be along the second direction, allowing for larger dimensions of the aforementioned air ducts and heat exchange core 400.

[0099] In some embodiments, please refer to Figure 8 The return air duct 100a1 is located above the supply air duct 100a2, and the fresh air duct 100a3 is located above the exhaust air duct 100a4.

[0100] In this embodiment, the return air duct 100a1 and the supply air duct 100a2 are distributed in the vertical direction, and the fresh air duct 100a3 and the exhaust air duct 100a4 are also distributed in the vertical direction. The length direction of the fresh air duct 100a3, the exhaust air duct 100a4, the return air duct 100a1, the supply air duct 100a2, and the heat exchange core 400 can all be along the second direction. The sum of the dimensions of the fresh air duct 100a3 and the exhaust air duct 100a4 in the vertical direction can be approximately equal to the fan cavity 100. b. The sum of the dimensions of the return air duct 100a1 and the supply air duct 100a2 in the vertical direction can be approximately equal to the vertical dimension of the fan cavity 100b. Without increasing the overall size of the outer casing 100 or with a relatively small overall size of the outer casing 100, the volumes of the return air duct 100a1, the supply air duct 100a2, the fresh air duct 100a3, the exhaust air duct 100a4, and the fan cavity 100b can be relatively large, and the resistance on the airflow path can be relatively small.

[0101] In some embodiments, please refer to Figure 3 The fan chamber 100b includes an independent air supply chamber 100b1 and an exhaust chamber 100b2, which are arranged along a first direction. Two fans 500 are located in the air supply chamber 100b1 and the exhaust chamber 100b2, respectively.

[0102] In this embodiment, the supply air chamber 100b1 and the exhaust air chamber 100b2 can be located on the same side of the heat exchange core 400 along the second direction to meet the miniaturization requirements. The supply air chamber 100b1 is used to circulate outdoor airflow after heat exchange, and the exhaust air chamber 100b2 is used to circulate indoor airflow after heat exchange. The exhaust air chamber 100b2 and the supply air chamber 100b1 can be independent of each other, that is, the indoor airflow in the exhaust air chamber 100b2 does not enter the supply air chamber 100b1, the outdoor airflow in the supply air chamber 100b1 does not enter the exhaust air chamber 100b2, and there is no gas flow between the exhaust air chamber 100b2 and the supply air chamber 100b1. The fan 500 located in the supply air chamber 100b1 drives the outdoor airflow, and the fan 500 located in the exhaust air chamber 100b2 drives the indoor airflow.

[0103] In one embodiment, the axes of both fans 500 extend along a second direction.

[0104] The larger the radial dimension of the fan 500, the greater its air volume; conversely, the smaller the radial dimension of the fan 500, the smaller its air volume. Taking the vertical direction as an example, if the axis of the fan 500 is along the vertical direction, meaning the fan 500 is positioned horizontally on the chassis of the outer casing 100 along the vertical direction, increasing the radial dimension of the fan 500 would result in an excessively large overall size. Conversely, reducing the radial dimension of the fan 500 to reduce the overall size would result in an insufficient air volume. In other words, with the fan 500 positioned horizontally on the chassis of the outer casing 100 along the vertical direction, a large radial dimension would excessively increase the dimension of the outer casing 100 along the second direction, which is detrimental to product miniaturization.

[0105] In this embodiment, the axes of both fans 500 extend along the second direction. When the radial dimension of the fan 500 is large, the fan 500 will not excessively increase the dimension of the whole machine along the second direction, thereby reducing the volume occupied by the fan 500, making the structural layout more reasonable and the overall machine smaller.

[0106] It is understandable that the axial and radial directions of the fan 500 are perpendicular to each other, and the axis of the fan 500 is a straight line extending along the axial direction.

[0107] In some embodiments, the fan 500 is a centrifugal fan. Exemplarily, the centrifugal fan includes a fan housing and a rotor, with the rotor located within the fan housing. The rotor rotates to drive airflow, and the fan housing acts as a guide. Both the axis of the rotor and the axis of the fan housing can extend along a second direction, thus increasing the radial dimensions of the rotor and fan housing does not substantially increase the dimensions along the second direction.

[0108] In one embodiment, the fan casing is a volute.

[0109] In one embodiment, the fresh air device 1000 includes a partition plate that divides the fan cavity 100b into an independent air supply chamber 100b1 and an exhaust chamber 100b2. The partition plate includes a bent portion that bends toward the air supply chamber 100b1.

[0110] For example, the two ends of the partition plate along the second direction can be connected to the side wall of the housing 100 and the partition 600, respectively.

[0111] In this embodiment, the air volume of the exhaust chamber 100b2 is greater than that of the supply chamber 100b1, and the bent portion bends toward the supply chamber 100b1 to increase the volume of the exhaust chamber 100b2, reduce the wind speed in the exhaust chamber 100b2, and reduce noise.

[0112] In some embodiments, the outer casing 100 has a chassis along its lower sidewall and a cover along its upper sidewall. That is, the chassis can face upwards, i.e., toward the ceiling.

[0113] In one embodiment, please refer to Figure 8 The return air inlet 110a is connected to the return air duct 100a1, the fresh air inlet 120a is connected to the fresh air duct 100a3, and both the supply air outlet 110b and the exhaust air outlet 120b are connected to the fan chamber 100b. For example, the supply air outlet 110b is connected to the supply air chamber 100b1, and the exhaust air outlet 120b is connected to the exhaust air chamber 100b2. The outlet of the supply air duct 100a2, along the second direction, near the supply air chamber 100b1, is connected to the supply air chamber 100b1. The exhaust air duct 100a4, along the second direction, near the exhaust air chamber 100b2, is connected to the exhaust air chamber 100b2.

[0114] The return air inlet 110a and the fresh air inlet 120a are located on both sides of the heat exchange core 400 along the first direction, and the supply air inlet 110b and the exhaust air inlet 120b are located on both sides of the fan cavity 100b along the first direction.

[0115] In this embodiment, the return air inlet 110a and the fresh air inlet 120a are located on both sides of the heat exchange core 400 along the first direction, and the supply air inlet 110b and the exhaust air inlet 120b are located on both sides of the fan cavity 100b along the first direction. Firstly, this facilitates the connection of external air ducts to the return air inlet 110a, supply air inlet 110b, fresh air inlet 120a, and exhaust air inlet 120b, avoiding interference between the air ducts and ceiling panels, and also preventing the formation of excessively large air vents on two or more side walls of the outer casing 100. Secondly, indoor airflow enters the return air channel 100a1 along the first direction through the return air inlet 110a. The partition plate 610 acts as a guide, allowing indoor airflow from the return air inlet 110a to enter the return air channel 100a1 without making large angle turns, thereby reducing resistance during indoor airflow and lowering noise. Outdoor airflow enters the fresh air duct 100a3 along the first direction through the fresh air inlet 120a. The isolation plate 620 acts as a guide, allowing the outdoor airflow from the fresh air inlet 120a to enter the fresh air duct 100a3 without making large angle turns, thus reducing resistance during the flow of outdoor air and lowering noise. In this way, indoor and outdoor airflows flow smoothly within the outer casing 100, reducing eddies.

[0116] In some embodiments, the circumferential surface of the heat exchange core 400 surrounding the second direction includes a return air inlet surface, a fresh air inlet surface, an exhaust air outlet surface, and a supply air outlet surface. The exhaust air outlet surface is opposite to the return air inlet surface, and the supply air outlet surface is opposite to the fresh air inlet surface. The return air inlet surface, fresh air inlet surface, exhaust air outlet surface, and supply air outlet surface are connected in sequence.

[0117] Before heat exchange, the outdoor airflow enters the heat exchange core 400 through the fresh air inlet surface, and after heat exchange, the outdoor airflow exits the heat exchange core 400 through the air outlet surface.

[0118] Before heat exchange, the indoor airflow enters the heat exchange core 400 through the return air inlet surface, and after heat exchange, the indoor airflow flows out of the heat exchange core 400 through the exhaust air outlet surface.

[0119] The return air intake surface, fresh air intake surface, exhaust air outlet surface, and supply air outlet surface are connected sequentially. In a plane projection perpendicular to the second direction, the projection formed by the return air intake surface, fresh air intake surface, exhaust air outlet surface, and supply air outlet surface is a quadrilateral. That is to say, please refer to... Figure 8 With a plane perpendicular to the second direction as its cross-section, the heat exchange core 400 has a quadrilateral cross-section, for example, it can be a regular quadrilateral. Compared to heat exchange cores with a hexagonal or larger cross-section, the heat exchange core 400 of this application has a smaller cross-sectional area, and the dimensions of the heat exchange core 400 in the first direction and the vertical direction are smaller.

[0120] The exhaust air outlet and the return air inlet are opposite to each other, and the supply air outlet and the fresh air inlet are opposite to each other. In this way, the indoor airflow and the outdoor airflow flow cross-flow, which can improve the heat exchange efficiency. Under the condition that the cross-sectional size of the heat exchange core 400 is small, the heat exchange performance can be maintained by utilizing the size of the heat exchange core 400 along the second direction.

[0121] In one embodiment, the connection between the exhaust air outlet and the supply air outlet is a first corner, which is located on the chassis of the housing 100. This design ensures that the exhaust air outlet and the supply air outlet are not obstructed by the chassis, facilitating airflow from both surfaces.

[0122] In one embodiment, the connection between the fresh air inlet surface and the exhaust air outlet surface is a second corner, and one end of the isolation plate 620 can be connected to the second corner.

[0123] In one embodiment, the connection between the return air inlet surface and the supply air outlet surface is a third corner, and one end of the partition plate 610 can be connected to the third corner.

[0124] In one embodiment, the connection between the return air inlet surface and the fresh air inlet surface is a fourth corner, which can abut against the cover of the outer casing 100 on the first side along the vertical direction. In one embodiment, referring to Figures 1-2, the heat exchange core 400 extends along the second direction, the supply air chamber 100b1 and the exhaust air chamber 100b2 are located on the same side of the heat exchange core 400 along the second direction, the outer casing 100 forms a return air inlet 110a and a supply air inlet 110b on the first sidewall 110 along the first direction, and the outer casing 100 forms a fresh air inlet 120a and an exhaust air inlet 120b on the second sidewall 120 along the first direction. The return air channel 100a1 is located on the upper side of the supply air channel 100a2, the fresh air channel 100a3 is located on the upper side of the exhaust air channel 100a4, the supply air chamber 100b1 is located on one side of the supply air channel 100a2 along the second direction, and the exhaust air chamber 100b2 is located on one side of the exhaust air channel 100a4 along the second direction.

[0125] The return air duct 100a1 and the supply air duct 100a2 are both located on the same side of the heat exchange core 400 along the first direction. The fresh air duct 100a3 and the exhaust air duct 100a4 are both located on the same side of the heat exchange core 400 along the first direction. Thus, the sum of the dimensions of the supply air chamber 100b1 and the exhaust air chamber 100b2 along the first direction is approximately equal to the sum of the dimensions of the return air duct 100a1, the fresh air duct 100a3, and the heat exchange core 400 along the first direction. The sum of the dimensions of the supply air chamber 100b1 and the exhaust air chamber 100b2 along the vertical direction is approximately equal to the vertical dimension of the heat exchange core 400. Other air ducts can also be designed according to the above principle. Therefore, there are almost no useless areas within the outer casing 100, and the dimensions of each air duct within the outer casing 100 are relatively large.

[0126] Regarding indoor airflow: Indoor airflow enters the outer casing 100 from the return air inlet 110a and flows along the first airflow path within the outer casing 100, then is discharged to the outside from the exhaust outlet 120b. In other words, the first airflow path is the return air path for indoor airflow. Specifically: After entering the return air channel 100a1 from the return air inlet 110a, the indoor airflow flows upward in a curved manner, enters the heat exchange core 400 through the return air inlet surface, and flows to the second side. After heat exchange, the indoor airflow enters the exhaust channel 100a4 through the exhaust outlet surface, and finally enters the exhaust chamber 100b2 and is discharged through the exhaust outlet 120b. The indoor airflow flows linearly during the process, with almost no dead air zones, smooth airflow path, and low wind resistance.

[0127] For outdoor airflow: Outdoor airflow enters the outer casing 100 through the fresh air inlet 120a and flows along the second airflow path within the outer casing 100. Then, it is discharged into the room through the air outlet 110b. In other words, the second airflow path is the fresh air path for outdoor airflow. After entering the fresh air duct 100a3, the outdoor airflow from the fresh air inlet 120a flows upward in a curved manner and enters the heat exchange core 400 through the fresh air inlet surface, flowing towards the second side. After heat exchange, the outdoor airflow enters the air supply duct 100a2 through the air supply outlet surface and finally enters the air supply chamber 100b1 and is discharged through the air outlet 110b. The outdoor airflow flows linearly with almost no dead zones, ensuring smooth airflow and low wind resistance.

[0128] In the description of this specification, the references to the terms "an embodiment," "some embodiments," and "exemplary" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0129] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fresh air device, characterized in that, include: The outer casing has an air vent formed on a first sidewall along a first direction, wherein the first direction is perpendicular to the vertical direction; The control device is located outside the first side wall; A connecting flange is provided on the outside of at least one of the air outlets, and the connecting flange is connected to the corresponding air outlet.

2. The fresh air equipment according to claim 1, characterized in that, The first sidewall forms two air vents, which are a supply air vent and a return air vent, respectively, and at least one of the supply air vent and the return air vent is provided with the pipe flange.

3. The fresh air equipment according to claim 2, characterized in that, The air supply outlet and the air return outlet are spaced apart along the second direction, and the control device is located between the air supply outlet and the air return outlet, wherein the first direction, the second direction and the up and down direction are perpendicular to each other.

4. The fresh air equipment according to claim 2, characterized in that, The fresh air device includes a heat exchange core located inside the housing, the heat exchange core extending along a second direction, and the housing having a fresh air inlet and an exhaust air outlet formed on a second sidewall along a first direction, wherein the first direction, the second direction, and the up and down direction are perpendicular to each other.

5. The fresh air equipment according to claim 1, characterized in that, With a plane perpendicular to the first direction as the projection plane, the projection of the control device is located within the projection range of the first sidewall.

6. The fresh air equipment according to claim 1, characterized in that, In the first direction, the control device does not protrude from the nozzle flange located on the first sidewall.

7. The fresh air equipment according to any one of claims 1 to 6, characterized in that, The control device includes a bracket, a control board, a support frame, and electrical components. The control board is disposed on one side of the bracket along a first direction, and the support frame is disposed on the side of the control board away from the bracket along the first direction. At least one of the electrical components is disposed on the support frame.

8. The fresh air equipment according to claim 7, characterized in that, The electrical component includes a terminal block, which is disposed on the support frame.

9. The fresh air equipment according to claim 8, characterized in that, The control device includes a ground plate, a portion of which is connected to the support frame, and another portion of which is connected to the first side wall. The terminal block is disposed on the ground plate.

10. The fresh air equipment according to claim 7, characterized in that, The control device includes a cable, and the support frame forms a cable tray on its surface away from the control board along a first direction, with the cable housed in the cable tray.

11. The fresh air equipment according to claim 10, characterized in that, The cable includes a power cable, a wired controller cable, and a communication cable. The cable tray includes multiple sub-slots, and the power cable, the wired controller cable, and the communication cable are each disposed in one of the sub-slots.

12. The fresh air equipment according to claim 10, characterized in that, The control device includes a wire clamp, and the wire routing groove has a wire release port on the side away from the control board along a first direction. The wire clamp selectively blocks or avoids at least part of the wire release port.

13. The fresh air equipment according to claim 7, characterized in that, The electrical components include a reactor, a capacitor, and a transformer, with at least one of the reactor, the capacitor, and the transformer disposed on the support frame.

14. The fresh air equipment according to claim 7, characterized in that, The support frame has heat dissipation holes.

15. The fresh air equipment according to claim 14, characterized in that, The wall surface of the heat dissipation hole has reinforcing ribs extending toward the side where the control board is located.

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