Fresh air equipment

Abstract

The utility model 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 technical field of air conditioning, and in particular to a fresh air device. Background Art

[0002] This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] Fresh air equipment is a highly efficient air purification device that discharges dirty air from indoors to outdoors, and draws in fresh air from outdoors and then inputs it into the room. Fresh air equipment usually includes a control device, which is used to regulate the operation of various components in the fresh air equipment. In the related art, the control device is arranged in the housing of the fresh air equipment, and the control device occupies the internal space of the housing. The housing is relatively large, resulting in a relatively large size of the fresh air equipment. Utility Model Content

[0004] In view of this, the present application hopes to provide a fresh air device that can reduce the size of the fresh air device and meet the miniaturization requirements.

[0005] The embodiment of the present application provides a fresh air device, including:

[0006] A housing, wherein a first side wall of the housing is provided with an air outlet 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 connecting flange is provided on the outer side of at least one of the air outlets, and the connecting flange is communicated with the corresponding air outlet.

[0009] In some embodiments, two air outlets are formed on the first side wall, and the two air outlets are a supply air outlet and a return air outlet, respectively. At least one of the supply air outlet and the return air outlet is provided with the connecting flange.

[0010] In some embodiments, the air supply outlet and the air return outlet are spaced apart along a 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-down direction are perpendicular to each other.

[0011] In some embodiments, the fresh air device includes a heat exchange core located in the shell, the heat exchange core extends along the second direction, and the second side wall of the shell along the first direction is formed with a fresh air inlet and an exhaust outlet, wherein the first direction, the second direction and the up and down directions are perpendicular to each other.

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

[0013] In some embodiments, the control device does not protrude from the connecting flange located on the first side wall.

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

[0015] In some embodiments, the electrical component includes a wiring socket, and the wiring socket is disposed on the supporting frame.

[0016] In some embodiments, the control device includes a grounding plate, a portion of the grounding plate is connected to the supporting frame, another portion of the grounding plate is connected to the first side wall, and the wiring socket is disposed on the grounding plate.

[0017] In some embodiments, the control device includes a cable, and a wiring groove is formed on a surface of the support frame away from the control board along a first direction, and the cable is accommodated in the wiring groove.

[0018] In some embodiments, the cable includes a power line, a wire controller line, and a communication line, the wiring groove includes a plurality of sub-grooves, and the power line, the wire controller line, and the communication line are respectively arranged in one of the sub-grooves.

[0019] In some embodiments, the control device includes a wire clamp, and a side of the wiring trough away from the control board along the first direction has a wire release opening, and the wire clamp selectively covers or avoids at least a portion of the wire release opening.

[0020] In some embodiments, the electrical components include a reactor, a capacitor, and a transformer, and at least one of the reactor, the capacitor, and the transformer is disposed on the support frame.

[0021] In some embodiments, the support frame is formed with heat dissipation holes.

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

[0023] In the fresh air device provided in the embodiment of the present application, the connecting flange and the control device are both arranged outside the first side wall. On the one hand, the internal space of the housing is not occupied, more layout space is provided for other components, and it is also convenient for operators to assemble the control device and the connecting flange at the same time. On the other hand, the control device and the connecting flange make full use of the space of the fresh air device along the first direction. The two have a compact structure, which can avoid increasing the size of the fresh air device along other directions, thereby reducing the overall size of the fresh air device and meeting the miniaturization requirements. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 for Figure 1 Schematic diagram of the structure shown from the perspective of V1;

[0026] Figure 3 A schematic diagram of the structure of a fresh air device provided in some other embodiments of the present application;

[0027] Figure 4 An exploded diagram of a control device provided in some embodiments of the present application;

[0028] Figure 5 A schematic diagram of the structure of a control device provided in some embodiments of the present application;

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

[0030] Figure 7 for Figure 5 The enlarged view of point B in the figure shows that 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] Fig. 9 A schematic structural diagram of a separator is provided for some embodiments of the present application.

[0033] Description of Reference Numerals

[0034] Fresh air equipment 1000;

[0035] Housing 100; heat exchange chamber 100a; return air channel 100a1; air supply channel 100a2; fresh air channel 100a3; exhaust air channel 100a4; fan chamber 100b; air supply chamber 100b1; exhaust air chamber 100b2;

[0036] First side wall 110; return air outlet 110a; supply air outlet 110b;

[0037] Second side wall 120; fresh air outlet 120a; exhaust air outlet 120b;

[0038] Control device 200; first area 200a; second area 200b;

[0039] Bracket 210; control panel 220;

[0040] Carrier 230; wiring groove 230a; sub-groove 230a1; wire release opening 230a2; heat dissipation hole 230b; reinforcing rib 230b1;

[0041] Electrical component 240; Terminal block 241;

[0042] Ground plate 250; cable 260; wire clamp 270; electric control box 280;

[0043] Wire buckle 290; clamping arm 291;

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

[0045] Partition 600 ; partition plate 610 ; isolation plate 620 . DETAILED DESCRIPTION

[0046] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0047] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in this application are no longer described separately. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] It should be noted that, in the present application, down refers to the direction toward the ground, and up refers to the direction opposite to down. 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 the related art, if the control device is placed outside the casing, for example, the air outlet of the casing is provided with a connecting flange, the lifting ear and the connecting flange are respectively located on different side walls of the casing, and the control device is arranged on the side wall where the lifting ear of the casing is located. In this way, the control device and the connecting flange will increase the size of the fresh air equipment in two directions, resulting in a large size of the whole machine, and the fresh air equipment is difficult to install in a scene with a smaller installation space.

[0050] See also Figures 1 to 9An embodiment of the present application provides a fresh air device 1000, including a shell 100, a control device 200 and a connecting flange 300. The shell 100 has an air outlet formed on a first side wall 110 along a first direction. The control device 200 is arranged outside the first side wall 110. A connecting flange 300 is arranged on the outer side of at least one air outlet, and the connecting flange 300 is connected to the corresponding air outlet.

[0051] The connecting flange 300 can be used to connect an external air duct to enhance the connection stability between the air duct and the fresh air device 1000, so that the air flow can enter the shell 100 or be discharged from the shell 100 through the air outlet.

[0052] A pipe flange 300 is disposed outside the air outlet, that is, the pipe flange 300 is disposed outside the first side wall 110 and does not occupy the internal space of the housing 100. For example, see Figure 1 The connecting flange 300 extends along the first direction, so that the connecting flange 300 has a guiding effect on the airflow, allowing the airflow to flow smoothly.

[0053] The control device 200 is used to control the operation of each component in the fresh air device 1000. The control device 200 can realize at least one of the functions of starting the fresh air device 1000, stopping the fresh air device 1000, and selecting the working mode of the fresh air device 1000. For example, if there is a lot of dirty air in the room, the control device 200 can receive a control signal sent by the user and adjust the air volume according to the control signal, so that the dirty air in the room can be quickly discharged to the outside through the housing 100, and the fresh air outside can be introduced into the room through the housing 100, thereby improving the user experience.

[0054] The fresh air device 1000 provided in the embodiment of the present application, the connecting flange 300 and the control device 200 are all arranged outside the first side wall 110. On the one hand, the internal space of the housing 100 is not occupied, more layout space is provided for other components, and it is also convenient for operators to assemble the control device 200 and the connecting flange 300 at the same time. On the other hand, the control device 200 and the connecting flange 300 make full use of the space of the fresh air device 1000 along the first direction. The two have a compact structure, which can avoid increasing the size of the fresh air device 1000 along other directions, thereby reducing the overall size of the fresh air device 1000 and meeting the miniaturization requirements.

[0055] The fresh air device 1000 provided in the embodiment of the present application can be installed on the ceiling or ceiling panel. The ceiling panel can separate the indoor space into the ceiling space and the living space. Users carry out their daily lives in the living space, and the ceiling space is not only used to beautify the interior decoration, but also to install other equipment. It is understandable that the indoor space includes but is not limited to balconies, bathrooms, kitchens, etc., and can be a large-sized house, a small-sized house, or other types of production or living environments.

[0056] When the fresh air device 1000 provided in the embodiment of the present application is mounted on a ceiling or a suspended ceiling board, taking the case 100 being roughly hexahedral as an example, the up-down direction may be the thickness direction of the case 100, one of the first direction and the second direction may be the width direction of the case 100, and the other of the first direction and the second direction may be the length direction of the case 100. Taking the case 1000 being mounted in a suspended ceiling space as an example, the size of the suspended ceiling space along the up-down direction is much smaller than the size of the suspended ceiling space along the first direction and the second direction, and the thickness direction of the case 100 is along the up-down direction, which facilitates the fresh air device 1000 to be mounted in the suspended ceiling space.

[0057] For some examples, see Figure 1 and Figure 2 The first side wall 110 is formed with two air outlets, which are a supply air outlet 110b and a return air outlet 110a, respectively. At least one of the supply air outlet 110b and the return air outlet 110a is provided with a pipe flange 300. The return air outlet 110a is used to introduce indoor airflow into the housing 100. The supply air outlet 110b is used to discharge outdoor airflow in the housing 100 out of the housing 100. Exemplarily, both the supply air outlet 110b and the return air outlet 110a are provided with a pipe flange 300, so that under the guiding effect of the pipe flange 300, the smoothness of the indoor air flow can be improved. That is to say, the first side wall 110 is formed with a return air inlet 110a and an air supply inlet 110b, and the return air inlet 110a and the air supply 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 side wall 110 is located and the indoor environment is small, and the first side wall 110 is not easy to condense water droplets in the air to produce condensed water, thereby reducing the risk of the control device 200 contacting condensed water.

[0058] For some examples, see Figure 1 and Figure 2 The air supply port 110b and the air return port 110a are spaced apart along the second direction, and the control device 200 is located between the air supply port 110b and the air return port 110a. In this way, the control device 200, the air supply port 110b, and the air return port 110a fully utilize the space of the fresh air device 1000 along the first direction, and the control device 200 does not increase the size of the fresh air device 1000 along the first direction.

[0059] For some examples, see Figure 3 The fresh air device 1000 includes a heat exchange core 400 located in the shell 100, the heat exchange core 400 extends along the second direction, and the second side wall 120 of the shell 100 along the first direction is formed with a fresh air port 120a and an exhaust port 120b.

[0060] The heat exchange core 400 is used to exchange heat between indoor airflow 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 port 120b is used to exhaust the indoor airflow in the housing 100 out of the housing 100.

[0061] The extension of the heat exchange core 400 along the second direction means that the airflow enters or flows out of the heat exchange core 400 from the circumference surrounding the second direction. For example, the extension of the heat exchange core 400 along the second direction may be that a plurality of heat exchange medium sheets of the heat exchange core 400 are stacked at intervals along the second direction. The heat exchange medium sheets are used for heat exchange between indoor airflow and outdoor airflow. An interval space is formed between two adjacent heat exchange medium sheets. The two adjacent interval spaces can flow indoor airflow and outdoor airflow respectively, and the indoor airflow and the outdoor airflow exchange heat through the heat exchange medium sheets. In other words, the indoor airflow and the outdoor airflow enter and exit the heat exchange core 400 from the circumference surrounding the second direction of the heat exchange core 400. The heat exchange medium sheets can be used for heat exchange but not for circulating airflow.

[0062] If the heat exchange core 400 extends in the vertical direction, that is, multiple heat exchange medium sheets are stacked in the vertical direction, the thickness of the housing 100 in the vertical direction will be greatly increased, making it difficult for the whole machine to be assembled into an installation space with a small height dimension in the vertical direction. If the size of the heat exchange core 400 in the vertical direction is reduced in order to adapt to the installation space with a small height dimension in the vertical direction, the number of heat exchange medium sheets will be too small or the spacing will be too small, resulting in poor heat exchange effect.

[0063] Exemplarily, the outdoor airflow enters the room through the fresh air outlet 120a, the heat exchange core 400 and the air supply outlet 110b in sequence; the indoor airflow is discharged to the outside through the return air outlet 110a, the heat exchange core 400 and the exhaust outlet 120b in sequence. The outdoor airflow and the indoor airflow realize heat exchange at the heat exchange core 400. For example, the outdoor airflow with a higher temperature and the indoor airflow with a lower temperature exchange heat in the heat exchange core 400, and the indoor airflow can absorb the heat in the outdoor airflow, and send the comfortable outdoor airflow into the room, changing the temperature and / or humidity of the indoor environment, 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 port 110b, the control device 200, and the return air port 110a are consistent. The length dimension of the heat exchange core 400 can be larger to ensure the heat exchange effect. The air supply port 110b, the control device 200 and the return air port 110a are arranged along the first direction, which can make full use of the dimension of the outer shell 100 along the first direction and avoid additional increase in the dimension of the outer shell 100 along the up and down directions and the second direction. The structure is compact. On the premise that the fresh air equipment 1000 has a good heat exchange effect, the size of the whole machine is small to meet the miniaturization requirements.

[0065] In some embodiments, the heat exchange core 400 includes a skeleton, and the skeleton is used to assemble heat exchange medium plates to maintain a spacing space between two adjacent heat exchange medium plates.

[0066] The heat exchange medium sheet may adopt the structure of the prior art. For example, the heat exchange medium sheet may be made of fiber, aluminum, steel or resin, etc.

[0067] For some examples, see Figure 2 , taking 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 side wall 110. That is to say, in the second direction and / or along the up-down direction, the control device 200 will not protrude from the first side wall 110, so that the control device 200 will not increase the size of the fresh air device 1000 in the second direction and / or along the up-down direction.

[0068] For some examples, see Figure 1 In the first direction, the control device 200 does not protrude from the connecting flange 300 located on the first side wall 110. That is, in the first direction, the length of the control device 200 is less than the length of the connecting flange 300. In this way, the control device 200 does not increase the size of the fresh air device 1000 along the first direction. In 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 an electrical component 240. The control board 220 is disposed on one side of the bracket 210 along the first direction, the support frame 230 is disposed on one side of the control board 220 away from the bracket 210 along the first direction, and at least one of the electrical components 240 is disposed on the support frame 230. Specifically, the bracket 210 is disposed outside the first side wall 110 for fixing the control board 220. The support frame 230 is used to fix at least one electrical component 240.

[0069] For example, see Figure 4 and Figure 5 The control device 200 is formed into a first area 200a and a second area separated along a first direction by the support frame 230. The control board 220 is located in the first area 200a, and at least one electrical component 240 is located in the second area 200b.

[0070] Compared with the related art in which the control board 220 and the electrical components 240 are arranged roughly in the same plane, in this embodiment, the size along the first direction is increased by the carrier 230, and the control board 220 and at least one electrical component 240 are arranged in a double layer in the control device 200, which can reduce the size of the control device 200 along the second direction and / or the vertical direction. The control board 220 and the electrical components 240 are arranged in layers along the first direction, which can reduce the overall size of the control device 200, thereby reducing the occupied space of the control device 200 and meeting the miniaturization requirements of the fresh air device 1000.

[0071] Taking the fresh air device 1000 disposed in the ceiling space as an example, the ceiling board is formed with an inspection port, and the control device 200 faces the inspection port. In other words, by utilizing the characteristics that the control board 220 and the electrical components 240 are arranged at intervals along the first direction, the projection size of the control device 200 on the projection plane perpendicular to the first direction can be reduced, so that the opening size of the inspection port can be reduced and the visual aesthetics can be improved.

[0072] For example, see Figure 1 and Figure 2 The control device 200 includes an electric control box 280, which is disposed on the first side wall 110, and the bracket 210, the control board 220, the carrier 230 and the electrical components 240 are all located in the electric control box 280. In this way, the electric control box 280 can protect the bracket 210, the control board 220, the carrier 230 and the electrical components 240, and prevent impurities and / or water from entering the electric control box 280 to cause damage to the control board 220 and the electrical components 240. The bracket 210 and other components are hidden in the electric control box 280, and the fresh air device 1000 has a better aesthetic appearance.

[0073] In one embodiment, the support frame 230 can be a plastic part, which is easy to process and has good structural strength. In addition, the support frame 230 also has an insulating effect, which can reduce the safety risk of the control device 200 and protect the operating personnel.

[0074] In some embodiments, the electrical component 240 includes a wiring base 241, and the wiring base 241 is disposed on the support frame 230. The wiring base 241 is used to connect an external wire. Figure 4 and Figure 5 , the wiring seat 241 is arranged in the second area 200b. In this way, the wiring seat 241 has a good visual effect, and the operator can load and unload the wiring seat 241 and the external wiring without removing the carrier 230, thereby improving the working efficiency. At the same time, it is also convenient to maintain and repair the wiring seat 241 and the external wiring.

[0075] In some embodiments, the control device 200 includes a cable 260. The surface of the support frame 230 away from the control board 220 along the first direction forms a wiring groove 230a, and the cable 260 is accommodated in the wiring groove 230a. The cable 260 is connected to the wiring terminal of the wiring seat 241. For example, see Figure 5 , the wiring groove 230a and the wiring seat 241 are spaced apart in the vertical direction, so that the wiring groove 230a extends in the vertical direction. Under the guidance and limiting effect of the wiring groove 230a, the cable 260 can maintain a relatively straight posture and extend in the vertical direction, avoiding bending, entanglement, etc. of the cable 260. In addition, it can also prevent the cable 260 from touching other parts and causing damage, thereby enhancing the protection of the cable 260. The cable 260 is routed on the surface of the support frame 230 away from the control board 220, and the cable 260 can be removed without removing the support frame 230, which is convenient for wiring and removal, and convenient for production installation and maintenance.

[0076] In some embodiments, the cable 260 includes a power line, a wire controller line, and a communication line. Specifically, the power line can be connected to the wiring socket 241, and then the wiring socket 241 and the control board 220 are connected through a wire to power the control board 220. The wire controller line and the communication line can be directly connected to the control board 220, and then routed through the wiring groove 230a. In this way, the cable 260 is laid neatly and safely, which is convenient for operators to load, unload and repair the cable 260.

[0077] The wire controller line is a cable 260 connecting the control panel 220 and the wire controller. The wire controller is an external electronic device for controlling the fresh air device 1000, and can be used to control the start and stop and / or mode selection of the fresh air device 1000. The wire controller can adopt a wire control device of the prior art.

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

[0079] In some embodiments, the wiring slot 230a includes a plurality of sub-slots 230a1, and the power line, the wire controller line, and the communication line are respectively arranged in a sub-slot 230a1. Figure 6 In this way, the power line, the wire controller line and the communication line can be laid in parallel along the vertical direction, which can avoid the phenomenon of entanglement and knotting between the cables 260 and improve the safety of the control device 200.

[0080] For some examples, see Figure 4 and Figure 5The control device 200 includes a grounding plate 250, a portion of the grounding plate 250 is connected to the carrier 230, another portion of the grounding plate 250 is connected to the first side wall 110, and the wiring seat 241 is disposed on the grounding plate 250. In this way, the control board 220 is grounded to the external power supply by connecting the grounding plate 250 to the housing 100, which can reduce costs and improve the safety of the control device 200.

[0081] In one embodiment, the grounding plate 250 may be a sheet metal part, so that the grounding plate 250 has high structural strength and is easy to form.

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

[0083] For some examples, see Figure 5 and Figure 6 The control device 200 includes a wire clamp 270. The side of the wiring trough 230a away from the control board 220 along the first direction has a wire release opening 230a2. The wire clamp 270 selectively shields or avoids at least part of the wire release opening 230a2. Exemplarily, the cable 260 can enter or escape from the wiring trough 230a through the wire release opening 230a2. The wire clamp 270 is used to fix the cable 260 to enhance the stability of the cable 260.

[0084] In one embodiment, the wire pressing card 270 can be detachably connected to the support frame 230. For example, one end of the wire pressing card 270 can be rotatably connected to the support frame 230, and the other end of the wire pressing card 270 is clamped with the support frame 230.

[0085] For some examples, see Figure 4 and Figure 5 The control device 200 includes a plurality of wire-passing buckles 290, and the wire-passing buckles 290 include two clamping arms 291, and the two clamping arms 291 clamp on both sides of the cable 260. In this way, under the guiding effect of the wire-passing buckles 290, the regularity of laying the cable 260 is beneficial, and the clamping effect of the clamping arms 291 can enhance the stability of the cable 260. The structure of the clamping arms 291 is relatively simple, which can reduce the difficulty of design and production.

[0086] In some embodiments, the electrical component 240 includes a reactor, a capacitor, and a transformer, and at least one of the reactor, the capacitor, and the transformer is 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 the coupling interference between the circuits in 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, see Figure 4The reactor, capacitor and transformer are all arranged in the second area 200b, so that, on the one hand, the safety risk of the electrical components 240 can be reduced under the insulation effect of the carrier 230, and the operators and users can be protected. On the other hand, it is convenient for operators to load, unload and repair the electrical components 240.

[0088] For some examples, see Figure 4 and Figure 7 The support frame 230 is formed with a heat dissipation hole 230b. Specifically, the heat dissipation hole 230b connects the first area 200a and the second area 200b, and the heat generated by the control board 220 can be smoothly discharged through the heat dissipation hole 230b, thereby reducing the operating temperature of the control device 200 and protecting the operating reliability of the control device 200.

[0089] In one embodiment, please refer to Figure 7 , taking the plane perpendicular to the first direction as the projection plane, the projection shape of the heat dissipation hole 230b is roughly rectangular, and the ratio of its length to width is 4:3. In this embodiment, the length direction of the heat dissipation hole 230b can be consistent with the up-down direction, and the width direction of the heat dissipation hole 230b can be consistent with the second direction.

[0090] For some examples, see Figure 7 , the hole wall of the heat dissipation hole 230b has a reinforcing rib 230b1 extending toward the side where the control board 220 is located. In this way, on the basis of meeting the heat dissipation requirements of the control device 200, the structural stability of the support frame 230 can be enhanced. Exemplarily, the length of the reinforcing rib 230b1 is not less than 5 mm (millimeter), for example, it can be 5.0 mm, 5.2 mm, 5.4 mm, 5.8 mm and 6.0 mm, etc. By setting a suitable size, the structural stability of the support frame 230 can be met.

[0091] See also Figure 8 and Fig. 9 The fresh air device 1000 includes a fan 500 and a partition 600. The partition 600 defines the space in 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 air flow is usually called return air, and outdoor air flow is usually called fresh air. The fresh air device 1000 realizes fresh air function and exhaust function. The fresh air function is a function for outdoor fresh air to enter the room, and the exhaust function is a function for indoor dirty air to be discharged to the outside.

[0093] The fan 500 is used to drive the outdoor airflow and the indoor airflow.

[0094] In the fresh air equipment 1000 provided in the embodiment of the present application, the partition 600 is an integrally formed structure, which can save the assembly steps of the partition 600; the integrated partition 600 limits the space in the outer shell 100 to the heat exchange chamber 100a and the fan chamber 100b, that is, one partition 600 can achieve the limitation of the fan chamber 100b and the heat exchange chamber 100a, and can avoid the problems of wrong installation and missing installation of multiple panels, thereby improving assembly efficiency.

[0095] For some examples, see Figure 3 , Figure 8 and Fig. 9 The heat exchange core 400 extends along the second direction, and the partition 600 includes a partition plate 610 and an isolation plate 620. The partition 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 partition plate 610 separates the heat exchange chamber 100a into a return air channel 100a1 and a supply air channel 100a2, and the isolation plate 620 separates the heat exchange chamber 100a into a fresh air channel 100a3 and an exhaust air channel 100a4.

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

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

[0098] In this embodiment, the heat exchange core 400 extends along the second direction, so that the size of the heat exchange core 400 along the second direction can be larger, and it will not affect the thickness of the shell 100 along the up-down direction, so that the thickness of the shell 100 along the up-down direction can be designed as needed without affecting the heat exchange efficiency, which not only meets the installation requirements, but also takes into account the heat exchange requirements. The partition plate 610 separates part of the space in the heat exchange chamber 100a into a return air channel 100a1 and a supply air channel 100a2 that are independent of each other, and the isolation plate 620 separates part of the space in the heat exchange chamber 100a into a fresh air channel 100a3 and an exhaust air channel 100a4 that are independent of each other, and the structure is simple. The length directions of the fresh air channel 100a3, the exhaust air channel 100a4, the return air channel 100a1, the supply air channel 100a2 and the heat exchange core 400 can all be along the second direction, so that the sizes of the above-mentioned air ducts and the heat exchange core 400 can all be larger.

[0099] For some examples, see Figure 8 The return air passage 100a1 is located on the upper side of the supply air passage 100a2, and the fresh air passage 100a3 is located on the upper side of the exhaust air passage 100a4.

[0100] In this embodiment, the return air channel 100a1 and the supply air channel 100a2 are distributed in the up-down direction, the fresh air channel 100a3 and the exhaust air channel 100a4 are distributed in the up-down direction, and the length directions of the fresh air channel 100a3, the exhaust air channel 100a4, the return air channel 100a1, the supply air channel 100a2 and the heat exchange core 400 can all be along the second direction, and the sum of the dimensions of the fresh air channel 100a3 and the exhaust air channel 100a4 in the up-down direction can be approximately equal to the fan chamber 100 b along the up-down direction, the sum of the dimensions of the return air duct 100a1 and the supply air duct 100a2 in the up-down direction can be roughly equal to the dimension of the fan cavity 100b along the up-down direction. Without increasing the overall size of the outer casing 100 or the overall size of the outer casing 100 is relatively small, 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 larger, and the resistance on the airflow path can be smaller.

[0101] For some examples, see Figure 3 The fan chamber 100b includes an air supply chamber 100b1 and an air exhaust chamber 100b2 which are independent of each other. The air supply chamber 100b1 and the air exhaust chamber 100b2 are arranged along a first direction. Two fans 500 are respectively located in the air supply chamber 100b1 and the air exhaust chamber 100b2.

[0102] In this embodiment, the air supply chamber 100b1 and the exhaust 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 air supply chamber 100b1 is used to circulate the outdoor airflow after heat exchange, and the exhaust chamber 100b2 is used to circulate the indoor airflow after heat exchange. The exhaust chamber 100b2 and the air supply chamber 100b1 can be independent of each other, that is, the indoor airflow of the exhaust chamber 100b2 does not enter the air supply chamber 100b1, the outdoor airflow in the air supply chamber 100b1 does not enter the exhaust chamber 100b2, and no gas circulates between the exhaust chamber 100b2 and the air supply chamber 100b1. The fan 500 located in the air supply chamber 100b1 drives the outdoor airflow to flow, and the fan 500 located in the exhaust chamber 100b2 drives the indoor airflow to flow.

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

[0104] The larger the radial dimension of the fan 500 is, the larger the air volume of the fan 500 is; conversely, the smaller the radial dimension of the fan 500 is, the smaller the air volume of the fan 500 is. Taking the case where the up-down direction is consistent with the up-down direction as an example, if the axis of the fan 500 is along the up-down direction, that is, the fan 500 is arranged on the chassis of the housing 100 along the up-down direction in a manner similar to lying, increasing the radial dimension of the fan 500 will cause the size of the whole machine to be too large. If the radial dimension of the fan 500 is reduced in order to reduce the size of the whole machine, the air volume of the fresh air fan 500 will be too small. In other words, the fan 500 is arranged on the chassis of the housing 100 along the up-down direction in a manner similar to lying. When the radial dimension of the fan 500 is large, the dimension of the housing 100 along the second direction will be excessively increased, which is not conducive to product miniaturization.

[0105] In this embodiment, the axes of the two fans 500 extend along the second direction. When the fan 500 has a larger radial dimension, the fan 500 will not excessively increase the dimension of the entire machine along the second direction, thereby reducing the volume occupied by the fan 500, making the structural layout more reasonable and the volume of the entire machine smaller.

[0106] It can be understood that the axial direction and radial direction 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 wind wheel, and the wind wheel is located in the fan housing. The wind wheel rotates to drive the airflow, and the fan housing plays a role in guiding the airflow. The axis of the wind wheel and the axis of the fan housing can both extend along the second direction, so that increasing the radial size of the wind wheel and the fan housing will not substantially increase the size along the second direction.

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

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

[0110] Exemplarily, two ends of the partition plate along the second direction may 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 larger 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 side wall along the lower side of the housing 100 is a bottom plate, and the side wall along the upper side of the housing 100 is a cover. In other words, the bottom plate may face upward, that is, toward the ceiling.

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

[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 chamber 100b along the first direction. On the one hand, it is convenient to connect the return air inlet 110a, the supply air inlet 110b, the fresh air inlet 120a and the exhaust air inlet 120b to the external air duct to avoid interference between the air duct and the ceiling plate and the ceiling, and it can also avoid the problem of over-size caused by forming the above-mentioned air inlets on more than two side walls of the housing 100. On the other hand, the indoor airflow enters the return air channel 100a1 along the first direction through the return air inlet 110a, and the partition plate 610 plays a guiding role. The indoor airflow from the return air inlet 110a can enter the return air channel 100a1 without turning at a large angle, such as °, thereby reducing the resistance of the indoor airflow during the flow and reducing noise. The outdoor airflow enters the fresh air passage 100a3 along the first direction through the fresh air outlet 120a, and the isolation plate 620 plays a guiding role. The outdoor airflow from the fresh air outlet 120a can enter the fresh air passage 100a3 without turning at a large angle, such as 0°, thereby reducing the resistance of the outdoor airflow and reducing noise. In this way, the indoor airflow and the outdoor airflow flow smoothly in the housing 100, which can reduce eddy currents.

[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, the supply air outlet surface is opposite to the fresh air inlet surface, and the return air inlet surface, the fresh air inlet surface, the exhaust air outlet surface and the supply air outlet surface are connected in sequence.

[0117] The outdoor air flow before heat exchange enters the heat exchange core 400 through the fresh air inlet surface, and the outdoor air flow after heat exchange flows out of the heat exchange core 400 through the supply air outlet surface.

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

[0119] The return air inlet surface, the fresh air inlet surface, the exhaust air outlet surface and the supply air outlet surface are connected in sequence, and in the plane projection perpendicular to the second direction, the projection formed by the return air inlet surface, the fresh air inlet surface, the exhaust air outlet surface and the supply air outlet surface together forms a quadrilateral. In other words, please refer to Figure 8 , taking the plane perpendicular to the second direction as the cross section, the cross section of the heat exchange core 400 is a quadrilateral, for example, a regular quadrilateral. Compared with a heat exchange core with a hexagonal or larger cross section, the cross section area of ​​the heat exchange core 400 of the present application is smaller, and the size of the heat exchange core 400 in the first direction and the up-down direction is smaller.

[0120] 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. In this way, the indoor airflow and the outdoor airflow cross-flow, which can improve the heat exchange efficiency. When the cross-sectional size of the heat exchange core 400 is small, the size of the heat exchange core 400 along the second direction can be used to maintain the heat exchange performance.

[0121] In one embodiment, the connection between the exhaust air outlet surface and the air supply air outlet surface is a first corner, and the first corner is arranged on the bottom plate of the housing 100. With such a design, the exhaust air outlet surface and the air supply air outlet surface are not blocked by the bottom plate, so that the exhaust air outlet surface and the air supply air outlet surface are convenient for air discharge.

[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 point 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 the fourth corner, and the fourth corner can abut the cover body of the first side of the housing 100 along the up-down direction. In one embodiment, referring to FIG. 1 to FIG. 2, the heat exchange core 400 extends along the second direction, the air supply chamber 100b1 and the exhaust chamber 100b2 are located on the same side of the heat exchange core 400 along the second direction, the first side wall 110 of the housing 100 along the first direction forms a return air port 110a and an air supply port 110b, the second side wall 120 of the housing 100 along the first direction forms a fresh air port 120a and an exhaust port 120b, the return air channel 100a1 is located on the upper side of the air supply channel 100a2, the fresh air channel 100a3 is located on the upper side of the exhaust channel 100a4, the air supply chamber 100b1 is located on one side of the air supply channel 100a2 along the second direction, and the exhaust chamber 100b2 is located on one side of the exhaust channel 100a4 along the second direction.

[0125] The return air channel 100a1 and the supply air channel 100a2 are both located on the same side of the heat exchange core 400 along the first direction. The fresh air channel 100a3 and the exhaust air channel 100a4 are both located on the same side of the heat exchange core 400 along the first direction. In this way, the sum of the dimensions of the supply air chamber 100b1 and the exhaust air chamber 100b2 along the first direction can be close to the sum of the dimensions of the return air channel 100a1, the fresh air channel 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 up-down direction can be close to the dimension of the heat exchange core 400 along the up-down direction. Other air ducts can also be designed according to the above principles. In this way, there is almost no useless area in the space inside the housing 100, and the dimensions of each air duct inside the housing 100 are relatively large.

[0126] Regarding indoor airflow: the indoor airflow enters the housing 100 from the return air port 110a, flows along the first airflow path in the housing 100, and then is discharged to the outside from the exhaust port 120b, that is, the first airflow path is the return air path of the indoor airflow. Specifically: the indoor airflow from the return air port 110a enters the return air channel 100a1 and flows upward in a curve, enters the heat exchange core 400 through the return air inlet surface and flows to the second side, and the indoor airflow after heat exchange enters the exhaust air channel 100a4 through the exhaust air outlet surface, and finally enters the exhaust chamber 100b2 and is discharged through the exhaust port 120b. The indoor airflow flows linearly during the flow process, with almost no airflow dead angle, smooth air path, and small wind resistance.

[0127] Regarding outdoor airflow: the outdoor airflow enters the housing 100 from the fresh air outlet 120a, flows along the second airflow path in the housing 100, and is then discharged to the room from the air supply outlet 110b, that is, the second airflow path is the fresh air path for the outdoor airflow. The outdoor airflow from the fresh air outlet 120a enters the fresh air passage 100a3 and flows upward in a curve, enters the heat exchange core 400 through the fresh air inlet surface and flows to the second side, and the outdoor airflow after heat exchange enters the air supply passage 100a2 through the air supply outlet surface, and finally enters the air supply chamber 100b1 and is discharged through the air supply outlet 110b. The outdoor airflow flows linearly during the flow process, with almost no airflow dead angle, smooth air path, and small wind resistance.

[0128] In the description of this specification, the description with reference to the terms "an embodiment", "some embodiments" and "exemplary" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0129] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction. The above description is only a preferred embodiment of this application and is not intended to limit this application. For those skilled in the art, this application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A fresh air device, characterized in that: include: A housing, wherein a first side wall of the housing is provided with an air outlet along a first direction, wherein the first direction is perpendicular to the up-down direction; A control device, arranged outside the first side wall; A connecting flange is provided on the outer side of at least one of the air outlets, and the connecting flange is communicated with the corresponding air outlet.

2. The fresh air device according to claim 1, characterized in that: The first side wall is formed with two air outlets, which are respectively an air supply outlet and an air return outlet. At least one of the air supply outlet and the air return outlet is provided with the connecting flange.

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

4. The fresh air device according to claim 2, characterized in that: The fresh air device includes a heat exchange core located in the shell, the heat exchange core extends along the second direction, and the second side wall of the shell along the first direction is formed with a fresh air inlet and an exhaust outlet, wherein the first direction, the second direction and the up and down directions are perpendicular to each other.

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

6. The fresh air device according to claim 1, characterized in that: In the first direction, the control device does not protrude from the connecting flange located on the first side wall.

7. The fresh air device 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 arranged on one side of the bracket along a first direction, the support frame 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 support frame.

8. The fresh air device according to claim 7, characterized in that: The electrical component comprises a wiring seat, and the wiring seat is arranged on the supporting frame.

9. The fresh air device according to claim 8, characterized in that: The control device comprises a grounding plate, a part of which is connected to the supporting frame, another part of which is connected to the first side wall, and the wiring seat is arranged on the grounding plate.

10. The fresh air device according to claim 7, characterized in that: The control device includes a cable, and a wiring groove is formed on a surface of the carrier away from the control board along a first direction, and the cable is accommodated in the wiring groove.

11. The fresh air device according to claim 10, characterized in that: The cable includes a power line, a wire controller line and a communication line. The wiring groove includes a plurality of sub-grooves. The power line, the wire controller line and the communication line are respectively arranged in one of the sub-grooves.

12. The fresh air device according to claim 10, characterized in that: The control device comprises a wire pressing clamp, and a wire routing slot has a wire releasing opening on a side away from the control board along a first direction, and the wire pressing clamp selectively shields or avoids at least a part of the wire releasing opening.

13. The fresh air device according to claim 7, characterized in that: The electrical components include a reactor, a capacitor and a transformer, and at least one of the reactor, the capacitor and the transformer is arranged on the supporting frame.

14. The fresh air device according to claim 7, characterized in that: The supporting frame is formed with heat dissipation holes.

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

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