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 heat exchange core, a fan and a partition part, the partition part limits the space in the shell into a heat exchange cavity and a fan cavity, the heat exchange core is located in the heat exchange cavity, the fan is located in the fan cavity, and the heat exchange core is located in the fan cavity. And the separator is of an integrally formed structure. The separator is of an integrally formed structure, so that the assembling steps of the separator can be saved; the space in the shell is limited into the heat exchange cavity and the fan cavity by the integrated separator, that is, the fan cavity and the heat exchange cavity can be limited by one separator, so that the problems of wrong assembly, neglected assembly and the like of a plurality of plates can be avoided, and the assembly efficiency is improved.

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 can be used to transport outdoor air into the room and discharge indoor air to the outside. In the related art, a plurality of panels for isolating air ducts are arranged in the shell of the fresh air equipment. Each panel is manufactured separately and then assembled to the shell separately. There are many separate panels, which makes assembly complicated and the assembly efficiency low. Utility Model Content

[0004] In view of this, the present application hopes to provide a fresh air device that can improve assembly efficiency.

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

[0006] shell;

[0007] Heat exchange core;

[0008] Fan;

[0009] A partition defines the space in the shell into a heat exchange chamber and a fan chamber, the heat exchange core is located in the heat exchange chamber, the fan is located in the fan chamber, and the partition is an integrally formed structure.

[0010] In some embodiments, the heat exchange core extends along a first direction, and the partition includes a partition plate and an isolation plate, wherein the partition plate and the isolation plate are respectively connected to two sides of the heat exchange core along a second direction, the partition plate separates the heat exchange chamber into a return air channel and a supply air channel, and the isolation plate separates the heat exchange chamber into a fresh air channel and an exhaust air channel, wherein the first direction is perpendicular to the second direction.

[0011] In some embodiments, the return air duct is located on a first side of the supply air duct along a third direction, and the fresh air duct is located on a first side of the exhaust air duct along the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0012] In some embodiments, a return air inlet and a supply air inlet are formed on the first side wall of the shell along the second direction, and a fresh air inlet and an exhaust air inlet are formed on the second side wall of the shell along the second direction, the return air inlet is connected to the return air channel, the fresh air inlet is connected to the fresh air channel, and the supply air inlet and the exhaust air inlet are both connected to the fan cavity.

[0013] In some embodiments, the partition plate includes a guide plate body, the surface of the guide plate body facing the first side wall is a return air guide surface, the return air guide surface is a portion of the surface of the return air channel, and the return air guide surface includes a recessed area recessed in a direction away from the first side wall.

[0014] In some embodiments, the air supply channel includes an expansion section, and the area of ​​the flow cross-section of the expansion section increases from away from the fan cavity to closer to the fan cavity.

[0015] In some embodiments, the partition includes a partition plate, a surface of the partition plate is a partial surface of the fan cavity, one end of the partition plate along the third direction is connected to the partition plate, and a portion of the partition plate protrudes in a direction close to the partition plate.

[0016] In some embodiments, the partition includes an air diffuser plate, a surface of the air diffuser plate is a partial surface of the fan cavity, one end of the air diffuser plate along the third direction is connected to the isolation plate, and the other end of the air diffuser plate along the third direction extends obliquely away from the isolation plate.

[0017] In some embodiments, the partition includes a support body, the support body is formed with an open groove opening toward the heat exchange core, and a portion of the heat exchange core is accommodated in the open groove.

[0018] In some embodiments, the heat exchange core extends along a first direction, the support body is located on a second side of the heat exchange core along a third direction, the support body includes a first inclined plate, a second inclined plate and a support plate, a portion of the support plate is recessed in a direction away from the heat exchange core to form the open groove, and the first inclined plate and the second inclined plate are respectively connected to both sides of the support plate along the second direction.

[0019] In some embodiments, the heat exchange core includes an intersecting air supply outlet surface and an air exhaust outlet surface, and a connection between the air supply outlet surface and the air exhaust outlet surface is a first corner, and the first corner is accommodated in the open groove.

[0020] In some embodiments, the heat exchange core includes a plurality of heat exchange units, and the plurality of heat exchange units are arranged along a first direction.

[0021] In some embodiments, the partition includes a guide piece disposed on the support body, and the guide piece abuts against one side of the heat exchange core along the second direction.

[0022] In some embodiments, the partition includes two frames, each of which is provided with a vent, and the two frames are connected to two opposite sides of the support body along the second direction, and the heat exchange core is in contact with the two frames.

[0023] In some embodiments, the fresh air device includes a stopper, one end of the frame along the third direction is connected to the support body, the stopper is arranged at one end of the frame along the third direction away from the support body, and the stopper abuts against a portion of the heat exchange core along the third direction away from the support body.

[0024] In some embodiments, the housing includes a shell having a bottom plate and a plurality of side panels, the plurality of side panels are all arranged on the same side of the bottom plate in a thickness direction, and the shell is an integrally formed structure.

[0025] In some embodiments, the fresh air device includes a partition plate, which divides the fan cavity into a supply air chamber and an exhaust air chamber that are independent of each other, and the partition plate includes a bending portion, which is bent toward the supply air chamber.

[0026] In the fresh air equipment provided in the embodiment of the present application, the partition is an integrated molding structure, which can save the assembly steps of the partition; the integrated partition limits the space in the outer shell into a heat exchange chamber and a fan chamber, that is, one partition can realize the limitation of the fan chamber and the heat exchange chamber, and can avoid problems such as wrong installation and missing installation of multiple panels, thereby improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a fresh air device in one embodiment of the present application;

[0028] Figure 2 for Figure 1 The schematic diagram of the fresh air device shown in another perspective omitting some structures, wherein the first airflow path X1 is the indoor airflow path, and the second airflow path X2 is the outdoor airflow path;

[0029] Figure 3 for Figure 1 A partial cross-sectional view of the fresh air device shown, wherein the dotted arrows schematically show the flow directions of the indoor airflow and the outdoor airflow;

[0030] Figure 4 for Figure 1 Another partial cross-sectional view of the fresh air device shown, wherein the dotted arrow schematically shows the flow direction of the outdoor air flow in the air supply channel;

[0031] Figure 5 for Figure 1 A schematic diagram of a partial structure of the fresh air device shown;

[0032] Figure 6 is a schematic diagram of a housing and a partition in an embodiment of the present application;

[0033] Figure 7 for Figure 6The enlarged schematic diagram at A in the middle;

[0034] Figure 8 It is a schematic diagram of the structure of a separator in one embodiment of the present application;

[0035] Fig. 9 for Figure 8 a schematic diagram of another perspective of the illustrated divider;

[0036] Fig.10 Schematic diagram of the structure of a shell in one embodiment of the present application.

[0037] Description of Reference Numerals

[0038] Shell 1; return air inlet 1a; supply air inlet 1b; fresh air inlet 1c; exhaust air inlet 1d; housing 11; chassis 111; side plate 112; cover 12; cover plate 13; heat exchange chamber 10a; return air channel 101a; supply air channel 102a; expansion section 102aa; fresh air channel 103a; exhaust air channel 104a; fan chamber 10b; supply air chamber 101b; exhaust air chamber 102b;

[0039] Heat exchange core 2; return air inlet surface 2a; fresh air inlet surface 2b; supply air outlet surface 2c; exhaust air outlet surface 2d; first corner 201; heat exchange unit 210;

[0040] Fan 3; fresh air fan 31; exhaust air fan 32;

[0041] Partition 4; partition plate 41; guide plate body 411; return air guide surface 411a; recessed area 411aa; guide plate body 412; bearing plate body 413; folding plate body 414; isolation plate 42; partition plate 43; air diffuser 44; support body 45; opening groove 45a; first inclined plate 451; second inclined plate 452; support plate 453; guide piece 46; frame 47; vent 47a;

[0042] Stopper 5; partition plate 6; bending portion 61; return air filter 7; fresh air filter 8. DETAILED DESCRIPTION

[0043] In the absence of conflict, the embodiments and technical features in the embodiments of the present application may be combined with each other, and the detailed descriptions in the specific implementation methods should be understood as explanations of the purpose of the present application and should not be regarded as improper limitations on the present application.

[0044] It should be noted that in the embodiments of the present application, down refers to the direction where the ground is located, and up is opposite to down; the first direction, the second direction and the third direction are three-dimensional vertical coordinate systems that are perpendicular to each other, and the first side of the third direction and the second side of the third direction are two opposite directions. In the embodiments of the present application, the orientation or position relationship of "first direction", "second direction" and "third direction" is based on the orientation or position relationship shown in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] See also Figure 1 , Figure 2 and Figure 6 The embodiment of the present application provides a fresh air device, which includes a housing 1, a heat exchange core 2, a fan 3 and a partition 4. The partition 4 defines the space in the housing 1 as a heat exchange cavity 10a and a fan cavity 10b, the heat exchange core 2 is located in the heat exchange cavity 10a, the fan 3 is located in the fan cavity 10b, and the partition 4 is an integrally formed structure.

[0046] Indoor airflow is usually called return air, and outdoor airflow is usually called fresh air. Both indoor airflow and outdoor airflow flow through the heat exchange core 2 and exchange heat through the heat exchange core 2 to achieve heat recovery and adjust the temperature and / or humidity of the outdoor airflow entering the room. The fresh air equipment realizes the fresh air function and the exhaust function. The fresh air function is the function of outdoor fresh air entering the room, and the exhaust function is the function of indoor dirty air being discharged to the outside.

[0047] The fan 3 is used to drive the outdoor airflow and the indoor airflow.

[0048] In the fresh air equipment provided in the embodiment of the present application, the partition 4 is an integrally formed structure, which can save the assembly steps of the partition 4; the integrated partition 4 limits the space in the outer shell 1 into a heat exchange chamber 10a and a fan chamber 10b, that is, one partition 4 can realize the limitation of the fan chamber 10b and the heat exchange chamber 10a, and can avoid problems such as misinstallation and missing installation of multiple panels, thereby improving assembly efficiency.

[0049] The fresh air device 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 a ceiling space and a 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. In one embodiment, the fresh air device is arranged in the ceiling space. In this way, the fresh air device is hidden in the ceiling space, avoiding the user from directly observing the entire fresh air device, thereby improving the visual aesthetics. 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.

[0050] When the fresh air device provided in the embodiment of the present application is mounted on a ceiling or a suspended ceiling panel, the third direction is consistent with the up-down direction, the first side of the third direction may be the bottom, and the second side of the third direction may be the top. Taking the shell 1 as an example of being roughly hexahedral, the third direction may be the thickness direction of the shell 1, one of the first direction and the second direction may be the width direction of the shell 1, and the other of the first direction and the second direction may be the length direction of the shell 1. Taking the fresh air device mounted in the 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 shell 1 is along the up-down direction, which facilitates the assembly of the fresh air device to the suspended ceiling space.

[0051] The overall size of the fresh air equipment in the related art is relatively large, the overall machine is heavy, and the installation space for installing the fresh air equipment is limited. For example, the fresh air equipment is usually only suitable for large-sized houses and / or scenes with large balcony ceiling space. In addition, the overall size of the fresh air equipment in the related art is relatively large, resulting in a small maintenance space, making the fresh air equipment inconvenient to maintain and increasing the difficulty of after-sales maintenance. If the overall size of the fresh air equipment is reduced, the size of the heat exchange core and / or air duct of the fresh air equipment will be reduced, resulting in reduced heat exchange efficiency. The reduction in the size of the various components of the air duct causes the air path to change dramatically, resulting in performance problems such as large pressure loss, small air volume, high energy consumption, and high noise. In some cases, the overall size of the fresh air equipment in the related art is large, and multiple plates used to isolate the air ducts in the fresh air equipment are flat-plate-shaped. The flat-plates are usually perpendicular to the chassis of the outer shell. The plates that isolate the air ducts do not have the function of guiding air, and will also cause the air ducts to include many 90° turns, increasing the useless area in the outer shell and causing space waste in the outer shell; the direction of indoor air flow and outdoor air flow usually flows in a curve. Therefore, eddy currents will appear at the intersection corners of each plate and the chassis, such as 90° turns, affecting the heat exchange efficiency and increasing the pressure loss of the entire heat exchange process. A blocked air path will also increase the motor load of the fresh air equipment, thereby increasing the speed and increasing the machine noise and vibration.

[0052] In one embodiment of the present application, please refer to Figures 2 to 6The heat exchange core 2 extends along the first direction, and the partition 4 includes a partition plate 41 and an isolation plate 42, which are respectively connected to the two sides of the heat exchange core 2 along the second direction. The partition plate 41 separates the heat exchange chamber 10a into a return air channel 101a and an air supply channel 102a, and the isolation plate 42 separates the heat exchange chamber 10a into a fresh air channel 103a and an exhaust air channel 104a, wherein the first direction is perpendicular to the second direction.

[0053] The extension of the heat exchange core 2 along the first direction means that the airflow enters or flows out of the heat exchange core 2 from the circumference surrounding the first direction. For example, the extension of the heat exchange core 2 along the first direction may be that a plurality of heat exchange medium sheets of the heat exchange core 2 are stacked at intervals along the first 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 2 from the circumference surrounding the first direction of the heat exchange core 2. The heat exchange medium sheets can be used for heat exchange but not for circulating airflow.

[0054] The two surfaces of the partition plate 41 in the thickness direction may be partial surfaces of the return air channel 101a and partial surfaces of the supply air channel 102a, respectively. The return air channel 101a is used to transport the indoor airflow to the heat exchange core 2, that is, the return air channel 101a is used to transport the indoor airflow before heat exchange. The supply air channel 102a is used to transport the outdoor airflow from the heat exchange core 2, that is, the supply air channel 102a is used to transport the outdoor airflow after heat exchange. The return air channel 101a and the supply air channel 102a are independent of each other, that is, the indoor airflow of the return air channel 101a does not enter the supply air channel 102a, the outdoor airflow in the supply air channel 102a does not enter the return air channel 101a, and no gas flows between the return air channel 101a and the supply air channel 102a.

[0055] The two surfaces in the thickness direction of the isolation plate 42 may be partial surfaces of the fresh air channel 103a and partial surfaces of the exhaust air channel 104a, respectively. The fresh air channel 103a is used to transport outdoor airflow to the heat exchange core 2, that is, the fresh air channel 103a is used to transport outdoor airflow before heat exchange. The exhaust air channel 104a is used to transport indoor airflow from the heat exchange core 2, that is, the exhaust air channel 104a is used to transport indoor airflow after heat exchange. The fresh air channel 103a and the exhaust air channel 104a are independent of each other, that is, the outdoor airflow of the fresh air channel 103a does not enter the exhaust air channel 104a, the indoor airflow in the exhaust air channel 104a does not enter the fresh air channel 103a, and no gas flows between the fresh air channel 103a and the exhaust air channel 104a.

[0056] If the heat exchange core 2 extends along the third direction, that is, multiple heat exchange medium sheets are stacked along the third direction, the thickness of the housing 1 along the vertical direction will be greatly increased, making it difficult for the whole machine to be assembled into an installation space with a smaller size along the vertical direction. If the size of the heat exchange core 2 along the third direction is reduced in order to adapt to the installation space with a smaller size along 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.

[0057] In this embodiment, the heat exchange core 2 extends along the first direction, so that the size of the heat exchange core 2 along the first direction can be larger, and will not affect the thickness of the shell 1 along the up-down direction, so that the thickness of the shell 1 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 41 separates part of the space in the heat exchange chamber 10a into a return air channel 101a and a supply air channel 102a that are independent of each other, and the isolation plate 42 separates part of the space in the heat exchange chamber 10a into a fresh air channel 103a and an exhaust air channel 104a that are independent of each other, and the structure is simple. The length directions of the fresh air channel 103a, the exhaust air channel 104a, the return air channel 101a, the supply air channel 102a and the heat exchange core 2 can all be along the first direction, so that the sizes of the above-mentioned air ducts and the heat exchange core 2 can all be larger.

[0058] In one embodiment, please refer to Figure 2 and Figure 3 The return air channel 101a is located at a first side of the supply air channel 102a along the third direction, and the fresh air channel 103a is located at a first side of the exhaust air channel 104a along the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0059] In this embodiment, the return air channel 101a and the supply air channel 102a are distributed along the third direction, and the fresh air channel 103a and the exhaust air channel 104a are distributed along the third direction. The length directions of the fresh air channel 103a, the exhaust air channel 104a, the return air channel 101a, the supply air channel 102a and the heat exchange core 2 can all be along the first direction. The sum of the dimensions of the fresh air channel 103a and the exhaust air channel 104a in the third direction can be roughly equal to the dimension of the fan cavity 10b along the third direction. The sum of the dimensions of the return air channel 101a and the supply air channel 102a in the third direction can be roughly equal to the dimension of the fan cavity 10b along the third direction. Without increasing the overall size of the outer shell 1 or the overall size of the outer shell 1 is relatively small, the volumes of the return air channel 101a, the supply air channel 102a, the fresh air channel 103a, the exhaust air channel 104a and the fan cavity 10b can be larger, and the resistance on the airflow path can be smaller.

[0060] In one embodiment of the present application, please refer to Figure 2The fan chamber 10b includes an air supply chamber 101b and an air exhaust chamber 102b which are independent of each other. The air supply chamber 101b and the air exhaust chamber 102b are arranged along the second direction. The two fans 3 are respectively located in the air supply chamber 101b and the air exhaust chamber 102b.

[0061] In this embodiment, the air supply chamber 101b and the exhaust chamber 102b can be located on the same side of the heat exchange core 2 along the first direction to meet the miniaturization requirements. The air supply chamber 101b is used to circulate the outdoor airflow after heat exchange, and the exhaust chamber 102b is used to circulate the indoor airflow after heat exchange. The exhaust chamber 102b and the air supply chamber 101b can be independent of each other, that is, the indoor airflow of the exhaust chamber 102b does not enter the air supply chamber 101b, the outdoor airflow in the air supply chamber 101b does not enter the exhaust chamber 102b, and no gas circulates between the exhaust chamber 102b and the air supply chamber 101b. The fan 3 located in the air supply chamber 101b drives the outdoor airflow to flow, and the fan 3 located in the exhaust chamber 102b drives the indoor airflow to flow.

[0062] In one embodiment, please refer to Figure 2 and Figure 3 , the axes of the two fans 3 both extend along the first direction.

[0063] The larger the radial dimension of the fan 3 is, the larger the air volume of the fan 3 is; conversely, the smaller the radial dimension of the fan 3 is, the smaller the air volume of the fan 3 is. Taking the third direction being consistent with the up-down direction as an example, if the axis of the fan 3 is along the third direction, that is, the fan 3 is arranged on the chassis 111 of the housing 1 along the third direction in a manner similar to lying, increasing the radial dimension of the fan 3 will cause the size of the whole machine to be too large. If the radial dimension of the fan 3 is reduced in order to reduce the size of the whole machine, the air volume of the fresh air fan 31 will be too small. In other words, the fan 3 is arranged on the chassis 111 of the housing 1 along the third direction in a manner similar to lying. When the radial dimension of the fan 3 is large, the size of the housing 1 along the first direction will be excessively increased, which is not conducive to product miniaturization.

[0064] In this embodiment, the axes of the two fans 3 extend along the first direction. When the fan 3 has a larger radial dimension, the fan 3 will not excessively increase the dimension of the entire machine along the first direction, thereby reducing the volume occupied by the fan 3, making the structural layout more reasonable and the volume of the entire machine smaller.

[0065] It can be understood that the axial direction and radial direction of the fan 3 are perpendicular to each other, and the axis of the fan 3 is a straight line extending along the axial direction.

[0066] In some embodiments, the fan 3 is a centrifugal fan. Exemplarily, the centrifugal fan 3 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 guiding role. The axis of the wind wheel and the axis of the fan housing can both extend along the first direction, so that increasing the radial size of the wind wheel and the fan housing will basically not increase the size along the first direction.

[0067] In one embodiment, the fan casing is a volute casing.

[0068] In one embodiment, the fan housing is provided with air inlets on both sides along the first direction, and the fan housing is provided with air outlets on a circumferential surface surrounding the first direction. The airflow enters the fan housing through the two air inlets and then flows out through the air outlets.

[0069] In one embodiment, please refer to Figure 2 and Figure 5 The fresh air device includes a partition plate 6, which divides the fan chamber 10b into a mutually independent air supply chamber 101b and an air exhaust chamber 102b. The partition plate 6 includes a bending portion 61, and the bending portion 61 is bent toward the air supply chamber 101b.

[0070] Exemplarily, two ends of the partition plate 6 along the first direction may be connected to the side wall of the housing 1 and the partition 4 respectively.

[0071] In this embodiment, the air volume of the exhaust chamber 102b is larger than that of the supply chamber 101b, and the bent portion 61 bends toward the supply chamber 101b to increase the volume of the exhaust chamber 102b, reduce the wind speed in the exhaust chamber 102b, and reduce noise.

[0072] In one embodiment, the fresh air device includes a filter screen, and the partition 4 is formed with a guide groove, and the end of the filter screen is located in the guide groove. The guide groove can limit the displacement of the filter screen along its thickness direction, and is used to maintain the stability of the filter screen. The partition 4 forms a guide groove, and it is no longer necessary to assemble an additional guide structure for limiting the position of the filter screen, thereby reducing production costs.

[0073] In one embodiment, the guide groove may extend along a third direction, and the filter screen may move along the third direction in the guide groove, and the filter screen moves in and out of the heat exchange chamber 10a in the guide groove.

[0074] The functions of the filter include but are not limited to removing dust, microorganisms and / or harmful gases from the air. Exemplarily, the filter includes but is not limited to a primary filter, a medium filter and a high efficiency filter. The primary filter is mainly used to filter impurities larger than 5 μm (micrometers); the medium filter is mainly used to filter impurities between 1 μm and 5 μm; the high efficiency filter is mainly used to filter impurities between 0.3 μm and 1 mm. The filter can be used alone or in combination of at least two different types of filters to suit different usage scenarios.

[0075] For example, in some embodiments, please refer to Figure 2 , Figure 5 and Figure 5 A filter is provided in the return air passage 101a, and the filter in the return air passage 101a can be defined as a return air filter 7. The return air filter 7 can be a primary filter.

[0076] For example, in some embodiments, please refer to Figure 2 , Figure 5 and Figure 5 Two filters are arranged in the fresh air passage 103a, and the filter in the fresh air passage 103a can be defined as a fresh air filter 8. The two fresh air filters 8 can be respectively a primary filter and a high efficiency filter.

[0077] For some examples, see Figure 3 and Figure 4 , the side wall of the second side of the housing 1 along the third direction is a bottom plate 111. That is, the bottom plate 111 can face upward, that is, toward the ceiling.

[0078] In one embodiment, please refer to Fig.10 The housing 1 includes a shell 11, which has a bottom plate 111 and a plurality of side plates 112. The plurality of side plates 112 are all arranged on the same side of the bottom plate 111 in the thickness direction, and the shell 11 is an integrally formed structure. For example, the number of the side plates 112 can be two or three. In this way, the assembly steps of the shell 11 can be reduced, and the assembly efficiency can be improved.

[0079] In one embodiment, please refer to Fig.10 The side wall of the second side of the shell 1 along the third direction is a bottom plate 111 , and the first side wall and the second side wall of the shell 1 opposite to each other along the second direction can both be side panels 112 .

[0080] In one embodiment, please refer to Figure 1 and Fig.10 The housing 1 includes a cover plate 13 and a cover body 12. Three side plates 112 and a bottom plate 111 together form an integrally formed housing 11. The three side plates 112 are sequentially connected along the circumference of the bottom plate 111. The cover plate 13 connects two opposite side plates 112. The cover body 12 is disposed on the opposite side of the bottom plate 111. The cover plate 13, the cover body 12 and the housing 11 together define a housing 1 having a hollow space.

[0081] In one embodiment, the fresh air device includes a temperature detection member, and the partition 4 is formed with elastic arms and convex ribs, and the elastic arms and convex ribs are arranged at intervals to define a card interface, and part of the temperature detection member is clamped in the card interface. In this way, the partition 4 can provide a fixed structure for the temperature detection member, thereby improving the assembly convenience of the temperature detection member.

[0082] The temperature detection component includes but is not limited to a temperature sensor.

[0083] In one embodiment, please refer to Figures 1 to 6 The first side wall of the housing 1 along the second direction is formed with a return air port 1a and an air supply port 1b, and the second side wall of the housing 1 along the second direction is formed with a fresh air port 1c and an exhaust port 1d, the return air port 1a is connected to the return air channel 101a, the fresh air port 1c is connected to the fresh air channel 103a, and the air supply port 1b and the exhaust port 1d are both connected to the fan chamber 10b. Exemplarily, the air supply port 1b is connected to the air supply chamber 101b, and the exhaust port 1d is connected to the exhaust chamber 102b. The outlet of the air supply channel 102a near the air supply chamber 101b along the first direction is connected to the air supply chamber 101b. The outlet of the exhaust channel 104a near the exhaust chamber 102b along the first direction is connected to the exhaust chamber 102b.

[0084] The return air port 1 a is connected to the outside, and is used to introduce indoor airflow into the housing 1 .

[0085] The air outlet 1d is connected to the outside, and is used to lead the indoor air flow in the housing 1 out of the housing 1.

[0086] The fresh air inlet 1c is connected to the outside, and is used to introduce outdoor air into the housing 1.

[0087] The air supply port 1 b is connected to the outside, and is used to lead the outdoor air flow in the housing 1 out of the housing 1 .

[0088] The return air inlet 1a and the fresh air inlet 1c are located on both sides of the heat exchange core 2 along the second direction, and the supply air inlet 1b and the exhaust air inlet 1d are located on both sides of the fan chamber 10b along the second direction.

[0089] In this embodiment, the return air inlet 1a and the fresh air inlet 1c are located on both sides of the heat exchange core 2 along the second direction, and the supply air inlet 1b and the exhaust air inlet 1d are located on both sides of the fan chamber 10b along the second direction. On the one hand, it is convenient to connect the return air inlet 1a, the supply air inlet 1b, the fresh air inlet 1c and the exhaust air inlet 1d 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-sized size caused by forming the above-mentioned air inlets on more than two side walls of the shell 1. On the second hand, the indoor airflow enters the return air channel 101a along the second direction through the return air inlet 1a, and the partition plate 41 plays a guiding role. The indoor airflow from the return air inlet 1a can enter the return air channel 101a without turning at a large angle, such as 90 degrees, thereby reducing the resistance of the indoor airflow during the flow and reducing noise. The outdoor airflow enters the fresh air passage 103a along the second direction through the fresh air outlet 1c, and the isolation plate 42 plays a guiding role. The outdoor airflow from the fresh air outlet 1c can enter the fresh air passage 103a without turning at a large angle, such as 90 degrees, thereby reducing the resistance of the outdoor airflow during the flow and reducing noise. In this way, the indoor airflow and the outdoor airflow flow smoothly in the housing 1, which can reduce eddy currents.

[0090] In one embodiment, please refer to Figures 2 to 9 The partition plate 41 includes a guide plate body 411, and the surface of the guide plate body 411 facing the first side wall is a return air guide surface 411a, the return air guide surface 411a is a portion of the surface of the return air channel 101a, and the return air guide surface 411a includes a recessed area 411aa recessed in the direction away from the first side wall.

[0091] In this embodiment, the return air guide surface 411a is a part of the surface of the return air channel 101a. The concave area 411aa increases the volume of the return air channel 101a, reduces the wind speed of the indoor air flow in the return air channel 101a, and thus reduces the friction noise between the indoor air flow and the return air guide surface 411a.

[0092] In some embodiments, a portion of the guide plate body 411 may be recessed in a direction away from the first side wall to form a recessed area 411aa. In other words, the portion of the guide plate body 411 corresponding to the recessed area 411aa occupies the space of the air supply channel 102a. In this way, it is not necessary to reduce the thickness of the portion of the guide plate body 411 corresponding to the recessed area 411aa, the structural strength of the guide plate body 411 is good, the outdoor airflow volume of the portion of the air supply channel 102a corresponding to the recessed area 411aa is small, and the required air supply space is relatively small. The portion of the guide plate body 411 corresponding to the recessed area 411aa occupies the space of the air supply channel 102a, which will not increase the resistance of the air supply channel 102a; and the effect of balancing the return air channel 101a and the air supply channel 102a can also be achieved.

[0093] In one embodiment, please refer to Figures 2 to 9, taking the plane perpendicular to the second direction as the projection plane, the projection of the return air outlet 1a is located within the projection range of the recessed area 411aa. The return air outlet 1a has a large air volume of the indoor airflow, and the recessed area 411aa increases the space corresponding to the return air outlet 1a, reduces the wind speed of the indoor airflow, and thus reduces the friction noise between the indoor airflow and the return air guide surface 411a.

[0094] In one embodiment, please refer to Figure 4 , Figure 8 and Fig. 9 , the air supply channel 102a includes an expansion section 102aa, and the area of ​​the flow cross section of the expansion section 102aa increases from a direction away from the fan chamber 10b to a direction close to the fan chamber 10b. Exemplarily, in the first direction, the area of ​​the flow cross section of the expansion section 102aa increases from a direction away from the air supply chamber 101b to a direction close to the air supply chamber 101b. The airflow in the air supply channel 102a is concentrated and gathered in the fan chamber 10b, such as the air supply chamber 101b. The closer the air supply channel 102a is to the fan chamber 10b, the greater the air volume. The flow cross section of the expansion section 102aa increases from a direction away from the fan chamber 10b to a direction close to the fan chamber 10b, which can reduce the wind speed and thus reduce the noise.

[0095] The flow cross section is a cross section taken perpendicular to a cluster of streamlines, such as the airflow.

[0096] In one embodiment, please refer to Figures 2 to 9 The partition member 4 includes a partition plate 43, the surface of the partition plate 43 is a partial surface of the fan chamber 10b, one end of the partition plate 43 along the third direction is connected to the partition plate 41, and a portion of the partition plate 43 protrudes toward the direction close to the partition plate 41. Exemplarily, the surface of the partition plate 43 is a partial surface of the air supply chamber 101b.

[0097] In this embodiment, the outdoor air flow is concentrated in the air supply chamber 101b and sent to the indoor environment. The air volume of the air supply chamber 101b reaches the maximum. The partition plate 43 is located at the junction of the air supply channel 102a and the air supply chamber 101b. The partition plate 43 partially protrudes toward the direction close to the partition plate 41, which can not only expand the volume of the air supply chamber 101b, thereby increasing the space of the air supply chamber 101b and reducing the wind speed in the air supply chamber 101b, but also reduce local eddies and airflow stagnation areas, improve gas turbulence, and achieve the effect of reducing noise.

[0098] In one embodiment, please refer to Figures 2 to 9 The partition 4 includes an air diffuser 44, the surface of the air diffuser 44 is a partial surface of the fan chamber 10b, one end of the air diffuser 44 along the third direction is connected to the isolation plate 42, and the other end of the air diffuser 44 along the third direction extends obliquely away from the isolation plate 42. Exemplarily, the surface of the air diffuser 44 is a partial surface of the exhaust chamber 102b.

[0099] In this embodiment, the surface of the air diffuser 44 constituting the exhaust chamber 102b may be an inclined plane. The airflow from the exhaust passage 104a may flow smoothly along the inclined plane of the air diffuser 44 toward the first side of the third direction, reducing airflow dead angles and eddy currents. The indoor airflow is concentrated in the exhaust chamber 102b and sent to the outdoor environment, and the air volume of the exhaust chamber 102b reaches the maximum. The air diffuser 44 may expand the volume of the exhaust chamber 102b, thereby increasing the space of the exhaust chamber 102b and reducing the wind speed in the exhaust chamber 102b, thereby achieving the effect of reducing noise.

[0100] For ease of description, the fan 3 located in the supply air chamber 101b is defined as the supply air fan 3, the fan 3 located in the exhaust air chamber 102b is defined as the exhaust air fan 32, the fan casing of the fresh air fan 31 is defined as the fresh air casing, and the fan casing of the exhaust fan 32 is defined as the exhaust air casing.

[0101] In one embodiment, an air inlet of the fresh air casing faces the outlet of the air supply channel 102a, and the air outlet of the fresh air casing is connected to the air supply port 1b. The airflow in the air supply chamber 101b enters the fresh air casing through the two air inlets of the fresh air casing, and then flows out to the air supply port 1b through the air outlet. The length direction of the air supply channel 102a extends along the first direction, and the airflow in the air supply channel 102a converges to the air supply chamber 101b along the first direction, and then enters the fresh air casing along the first direction, which can reduce large angles such as 90° turns during the flow of outdoor airflow, thereby reducing wind resistance, reducing eddy currents, and reducing noise.

[0102] In one embodiment, the air outlet of the fresh air case is aligned and connected with the air supply port 1b. That is, the air outlet of the fresh air case is similar in size and shape to the air supply port 1b. With the plane perpendicular to the second direction as the projection plane, the projection of the air outlet of the fresh air case at least partially overlaps with the projection of the air supply port 1b.

[0103] In one embodiment, an air inlet of the exhaust fan housing faces the outlet of the exhaust passage 104a, and the air outlet of the exhaust fan housing is connected to the exhaust port 1d. The airflow in the exhaust chamber 102b enters the exhaust fan housing through the two air inlets of the exhaust fan housing, and then flows out to the exhaust port 1d through the air outlet. The length direction of the exhaust passage 104a extends along the first direction, and the airflow in the exhaust passage 104a converges to the exhaust chamber 102b along the first direction, and then enters the exhaust fan housing along the first direction, which can reduce large angles such as 90° turns during the flow of outdoor airflow, thereby reducing wind resistance, reducing vortices, and reducing noise.

[0104] In one embodiment, the air outlet of the exhaust fan housing is aligned and connected to the exhaust port 1d. That is, the air outlet of the exhaust fan housing is similar in size and shape to the exhaust port 1d. Taking the plane perpendicular to the second direction as the projection plane, the projection of the air outlet of the exhaust fan housing at least partially overlaps with the projection of the exhaust port 1d.

[0105] One end of the partition plate 41 is connected to the heat exchange core 2, and the other end of the partition plate 41 can be connected to the housing 1, for example, to the return air port 1a. In other words, the partition plate 41 can be connected to the surrounding area of ​​the return air port 1a. For example, the partition plate 41 can be connected to the first side wall. For another example, the partition plate 41 can be connected to the connection between the first side wall and the chassis 111. For another example, the partition plate 41 can be connected to the part of the chassis 111 close to the first side wall.

[0106] In one embodiment, please refer to Figures 2 to 9 The partition plate 41 includes a guide plate body 412 and a bearing plate body 413. The bearing plate body 413 connects the guide plate body 412 and the guide plate body 411. One end of the guide plate body 412 is connected to the second side of the return air outlet 1a along the third direction. The other end of the guide plate body 412 extends obliquely in a direction away from the return air outlet 1a. The return air filter 7 is arranged on the bearing plate body 413. The included angle between the guide plate body 412 and the return air filter 7 is an obtuse angle. The guide plate body 412 is inclined toward the return air outlet 1a. The indoor airflow from the return air outlet 1a flows to the return air filter 7 through the guide plate body toward the first side of the third direction, thereby reducing the airflow blockage and the probability of vortex.

[0107] In one embodiment, please refer to Figures 2 to 9 The partition plate 41 includes a folded plate body 414, the folded plate body 414 connects the guide plate body 411 and the heat exchange core, and the folded plate body 414 is perpendicular to the third direction. For example, the folded plate body 414 can be smoothly connected to the guide plate body 411. The folded plate body 414 facilitates the indoor air flow to flow to the return air inlet surface 2a.

[0108] One end of the isolation plate 42 is connected to the heat exchange core 2, and the other end of the isolation plate 42 can be connected to the outer shell 1. The position where the isolation plate 42 is connected to the outer shell 1 is not limited. For example, the isolation plate 42 can be connected to the fresh air outlet 1c, that is, the isolation plate 42 can be connected to the surrounding area of ​​the fresh air outlet 1c. In some embodiments, the isolation plate 42 can be connected to the side wall where the fresh air outlet 1c is located, such as the second side wall. In some embodiments, the isolation plate 42 can be connected to the connection between the second side wall and the chassis 111. In some embodiments, the isolation plate 42 can be connected to the part of the chassis 111 close to the second side wall. For example, the fresh air filter 8 can be carried on the isolation plate 42.

[0109] The material of the partition 4 includes but is not limited to plastics and the like. It is difficult to make curved surfaces for sheet metal parts, and it is difficult to make air guide structures according to the airflow direction. The design is limited, and the thickness of the thermal insulation foam parts is usually very large and occupies a large space. Compared with sheet metal parts and thermal insulation foam parts, plastic parts have the advantages of flexible design of curved surfaces for air guide structures, relatively small thickness and do not occupy too much space.

[0110] In some embodiments, the partition 4 can be an integral injection molding structure. The partition 4 is lightweight and can also reduce the number of fasteners between the partition plate 41, the isolation plate 42, the partition plate 43, the air diffuser plate 44, and the support body 45, greatly improving assembly efficiency, reducing weight, and reducing costs.

[0111] In some embodiments, the partition 4 may further include a connecting plate and a sealing plate spaced apart along the first direction, the connecting plate connecting the partition plate 43 and the air diffusion plate 44, the sealing plate connecting the partition plate 41 and the isolation plate 42, and the supporting body 45 is respectively connected to the connecting plate and the sealing plate at both ends along the first direction.

[0112] In one embodiment, please refer to Figure 3 The circumferential surface of the heat exchange core 2 surrounding the first direction includes a return air inlet surface 2a, a fresh air inlet surface 2b, an exhaust air outlet surface 2d and a supply air outlet surface 2c. The exhaust air outlet surface 2d is opposite to the return air inlet surface 2a, and the supply air outlet surface 2c is opposite to the fresh air inlet surface 2b. The return air inlet surface 2a, the fresh air inlet surface 2b, the exhaust air outlet surface 2d and the supply air outlet surface 2c are connected in sequence.

[0113] The outdoor air flow before heat exchange enters the heat exchange core 2 through the fresh air inlet surface 2b, and the outdoor air flow after heat exchange flows out of the heat exchange core 2 through the air supply outlet surface 2c.

[0114] The indoor air flow before heat exchange enters the heat exchange core 2 through the return air inlet surface 2a, and the indoor air flow after heat exchange flows out of the heat exchange core 2 through the exhaust air outlet surface 2d.

[0115] The return air inlet surface 2a, the fresh air inlet surface 2b, the exhaust air outlet surface 2d and the supply air outlet surface 2c are connected in sequence, and in the plane projection perpendicular to the first direction, the projection formed by the return air inlet surface 2a, the fresh air inlet surface 2b, the exhaust air outlet surface 2d and the supply air outlet surface 2c is a quadrilateral. In other words, with the plane perpendicular to the first direction as the cross section, the cross section of the heat exchange core 2 is a quadrilateral, for example, it can be a regular quadrilateral. Compared with the heat exchange core with a hexagonal or larger cross section, the cross-sectional area of ​​the heat exchange core 2 of the present application is smaller, and the size of the heat exchange core 2 in the second direction and the third direction is smaller.

[0116] The exhaust air outlet surface 2d is opposite to the return air inlet surface 2a, and the supply air outlet surface 2c is opposite to the fresh air inlet surface 2b. 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 2 is small, the size of the heat exchange core 2 along the first direction can be used to maintain the heat exchange performance.

[0117] In one embodiment, please refer to Figure 3 The connection between the exhaust air outlet surface 2d and the air supply air outlet surface 2c is a first corner 201, and the first corner 201 is arranged on the chassis 111 of the housing 1. With such a design, the exhaust air outlet surface 2d and the air supply air outlet surface 2c are not blocked by the chassis 111, so that the exhaust air outlet surface 2d and the air supply air outlet surface 2c are convenient for air discharge.

[0118] In one embodiment, please refer to Figure 3 The connection between the fresh air inlet surface 2b and the exhaust air outlet surface 2d is a second corner, and one end of the isolation plate 42 can be connected to the second corner.

[0119] In one embodiment, please refer to Figure 3 The connection point between the return air inlet surface 2a and the supply air outlet surface 2c is a third corner, and one end of the partition plate 41 can be connected to the third corner.

[0120] In one embodiment, please refer to Figure 3 The connection between the return air inlet surface 2a and the fresh air inlet surface 2b is a fourth corner, and the fourth corner can abut the cover body 12 on the first side of the shell 1 along the third direction.

[0121] In one embodiment, please refer to Figures 2 to 9 The heat exchange core 2 extends along the first direction, the supply air chamber 101b and the exhaust air chamber 102b are located on the same side of the heat exchange core 2 along the first direction, the first side wall of the shell 1 along the second direction forms a return air port 1a and a supply air port 1b, the second side wall of the shell 1 along the second direction forms a fresh air port 1c and an exhaust air port 1d, the return air channel 101a is located on the first side of the supply air channel 102a along the third direction, the fresh air channel 103a is located on the first side of the exhaust air channel 104a along the third direction, the supply air chamber 101b is located on one side of the supply air channel 102a along the first direction, and the exhaust air chamber 102b is located on one side of the exhaust air channel 104a along the first direction.

[0122] The return air channel 101a and the supply air channel 102a are both located on the same side of the heat exchange core 2 along the second direction. The fresh air channel 103a and the exhaust air channel 104a are both located on the same side of the heat exchange core 2 along the second direction. In this way, the sum of the dimensions of the supply air chamber 101b and the exhaust air chamber 102b along the second direction can be close to the sum of the dimensions of the return air channel 101a, the fresh air channel 103a and the heat exchange core 2 along the second direction. The sum of the dimensions of the supply air chamber 101b and the exhaust air chamber 102b along the third direction can be close to the dimension of the heat exchange core 2 along the third 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 outer shell 1, and the dimensions of each air duct in the outer shell 1 are relatively large.

[0123] Regarding indoor air flow: the indoor air flow enters the housing 1 from the return air port 1a and flows along the first air flow path X1 in the housing 1 (see Figure 2 ), and then discharged to the outside from the exhaust port 1d, that is, the first airflow path is the return air path of the indoor airflow. Specifically: the indoor airflow from the return air port 1a enters the return air channel 101a and flows in a curve to the first side of the third direction, and enters the heat exchange core 2 through the return air inlet surface 2a and flows to the second side. The indoor airflow after heat exchange enters the exhaust channel 104a through the exhaust air outlet surface 2d, and finally enters the exhaust chamber 102b and is discharged through the exhaust port 1d. The indoor airflow flows linearly during the flow process, with almost no airflow dead corners, smooth air path, and small wind resistance.

[0124] For outdoor air flow: the outdoor air flow enters the housing 1 from the fresh air outlet 1c and flows along the second air flow path X2 in the housing 1 (see Figure 2 ), and then discharged from the air supply port 1b to the room, that is, the second air flow path is the fresh air path of the outdoor air flow. The outdoor air from the fresh air port 1c enters the fresh air channel 103a and flows in a curve to the first side of the third direction, and enters the heat exchange core 2 through the fresh air inlet surface 2b and flows to the second side. The outdoor air after heat exchange enters the air supply channel 102a through the air supply outlet surface 2c, and finally enters the air supply chamber 101b and is discharged through the air supply port 1b. The outdoor air flows linearly during the flow process, with almost no airflow dead angle, smooth air path, and small wind resistance.

[0125] In one embodiment, please refer to Figure 3 , Figures 6 to 8 The separator 4 includes a support body 45, and the support body 45 is formed with an open groove 45a that opens toward the heat exchange core 2, and a part of the heat exchange core 2 is accommodated in the open groove 45a. The support body 45 can be used to support the heat exchange core 2, and the open groove 45a is used to position and limit the heat exchange core 2, to a certain extent, to prevent the heat exchange core 2 from shifting, and to facilitate assembly and fixation.

[0126] In one embodiment, please refer to Figure 3 , Figures 6 to 8 The support body 45 can be disposed on the bottom plate 111. During the installation of the heat exchange core 2, the heat exchange core 2 can be placed into the support body 45 from the first side away from the bottom plate 111, and a portion of the heat exchange core 2 is inserted into the opening groove 45a, which is easy to operate.

[0127] For example, the support body 45 and the chassis 111 may be detachably connected or non-detachably connected. The detachable connection includes but is not limited to screw connection or bolt connection and the like.

[0128] In one embodiment, please refer to Figure 3 , Figures 6 to 8 The heat exchange core 2 extends along the first direction, and the support body 45 is located on the second side of the heat exchange core 2 along the third direction. The support body 45 includes a first inclined plate 451, a second inclined plate 452 and a support plate 453. A portion of the support plate 453 is recessed in a direction away from the heat exchange core 2 to form an open groove 45a. The first inclined plate 451 and the second inclined plate 452 are respectively connected to both sides of the support plate 453 along the second direction.

[0129] In this embodiment, the first inclined plate 451 and the second inclined plate 452 can not only provide supporting force for the support plate 453, thereby stably supporting the heat exchange core 2, but also guide the airflow, reduce the airflow blockage in the area surrounding the first inclined plate 451 and the heat exchange core 2, and reduce the airflow blockage in the area surrounding the second inclined plate 452 and the heat exchange core 2, thereby reducing wind resistance.

[0130] In one embodiment, please refer to Figure 3 , Figures 6 to 8 The heat exchange core 2 includes an intersecting air supply outlet surface 2c and an air exhaust outlet surface 2d, and the connection between the air supply outlet surface 2c and the air exhaust outlet surface 2d is a first corner 201, and the first corner 201 is accommodated in the opening groove 45a.

[0131] In this embodiment, the first corner 201 is accommodated in the opening groove 45a, and the outdoor airflow after heat exchange from the air supply outlet surface 2c can flow under the guidance of the first inclined plate 451, reducing airflow dead angles. The indoor airflow after heat exchange from the exhaust outlet surface 2d can flow under the guidance of the second inclined plate 452, reducing airflow dead angles, reducing air duct resistance, and reducing the speed and noise of the whole machine.

[0132] The first inclined plate 451 can be roughly parallel to the exhaust air outlet surface 2d, and the second inclined plate 452 can be roughly parallel to the supply air outlet surface 2c. In this way, the direction in which the outdoor air flows out of the heat exchange core 2 is roughly parallel to the first inclined plate 451, and the direction in which the indoor air flows out of the heat exchange core 2 is roughly parallel to the second inclined plate 452, and the air path is smoother.

[0133] In one embodiment, please refer to Figures 5 to 7The heat exchange core 2 includes a plurality of heat exchange monomers 210, and the plurality of heat exchange monomers 210 are arranged along the first direction. That is, each heat exchange monomer 210 can be separately disassembled and then assembled into the heat exchange core 2. During the assembly of the heat exchange core 2, the plurality of heat exchange monomers 210 can enter the opening groove 45a one by one and can slide in the opening groove 45a along the first direction to complete the arrangement of the plurality of heat exchange monomers 210 along the first direction, thereby reducing the assembly difficulty.

[0134] In one embodiment, please refer to Figures 3 to 8 The partition 4 includes a guide piece 46 disposed on the support body 45, and the guide piece 46 abuts against one side of the heat exchange core 2 along the second direction. With this design, the size of the opening groove 45a can be relatively small to prevent the groove wall of the opening groove 45a from blocking the heat exchange core 2; during the process of inserting the heat exchange core 2 into the opening groove 45a along the third direction, the guide piece 46 guides the heat exchange core 2, reducing the assembly skill requirements and improving the assembly efficiency. The guide piece 46 can also strengthen the support for the heat exchange core 2 to prevent the heat exchange core 2 from escaping from the opening groove 45a due to unstable center of gravity. The guide piece 46 has a simple structure, and the contact area between the guide piece 46 and the heat exchange core 2 is small, which can avoid affecting the heat exchange core 2.

[0135] In one embodiment, please refer to Figures 3 to 8 The partition 4 includes two frames 47 , each of which has a vent 47 a . The two frames 47 are connected to two opposite sides of the support 45 along the second direction, and the heat exchange core 2 abuts against the two frames 47 .

[0136] The vents 47a are used for air circulation. For example, one of the vents 47a can be communicated with the air supply passage 102a, and the other vent 47a can be communicated with the exhaust passage 104a. The air supply outlet surface 2c faces the vent 47a of one of the frames 47, and the exhaust outlet surface 2d faces the vent 47a of the other frame 47. The outdoor airflow from the air supply outlet surface 2c enters the air supply passage 102a through the vent 47a. The indoor airflow from the exhaust outlet surface 2d enters the exhaust passage 104a through the vent 47a.

[0137] In this embodiment, during the installation of the heat exchange core 2, the heat exchange core 2 slides from the first side of the third direction along the frame 47 to the second side into the opening groove 45a, effectively reducing the difficulty of assembly. The frame 47 can provide support for the heat exchange core 2, so that the heat exchange core 2 can stably maintain its tilted side standing on the chassis 111.

[0138] The shape of the frame 47 is not limited, and the area enclosed by the frame 47 can be a vent 47a. Exemplarily, one of the frames 47 abuts against the air supply outlet surface 2c of the heat exchange core 2, and the outer contour of the air supply outlet surface 2c can be roughly quadrilateral, and the outer contour of the frame 47 can be roughly quadrilateral, and the frame 47 can roughly abut the periphery of the air supply outlet surface 2c. Another frame 47 abuts against the exhaust outlet surface 2d of the heat exchange core 2, and the outer contour of the exhaust outlet surface 2d can be roughly quadrilateral, and the outer contour of the frame 47 can be roughly quadrilateral, and the frame 47 can roughly abut the periphery of the exhaust outlet surface 2d.

[0139] In one embodiment, please refer to Figure 2 , Figures 5 to 8 The fresh air device includes a stopper 5, one end of the frame 47 along the third direction is connected to the support body 45, the stopper 5 is arranged at one end of the frame 47 away from the support body 45 along the third direction, and the stopper 5 abuts against the part of the heat exchange core 2 away from the support body 45 along the third direction. The stopper 5 can prevent the heat exchange core 2 from escaping from the housing 1 from the first side in the third direction, and the stopper 5, the frame 47 and the support body 45 can limit the freedom of the heat exchange core 2 in multiple directions, so that the heat exchange core 2 can be stably assembled on the partition 4.

[0140] For example, see Figure 2 , Figures 5 to 8 There may be multiple stoppers 5 , at least one stopper 5 abuts against the second corner of the heat exchange core 2 , and at least one stopper 5 abuts against the third corner of the heat exchange core 2 .

[0141] The stopper 5 can be detachably connected to the partition 4, such as by screw connection or bolt connection. For example, the stopper 5 is detachably connected to the partition plate 41, and the stopper 5 is detachably connected to the isolation plate 42.

[0142] The shape of the stopper 5 is not limited. For example, the stopper 5 may be substantially in the shape of a sheet.

[0143] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments" or "exemplary" etc. 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 the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0144] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A fresh air device, characterized in that: include: shell; Heat exchange core; Fan; A partition defines the space in the shell into a heat exchange chamber and a fan chamber, the heat exchange core is located in the heat exchange chamber, the fan is located in the fan chamber, and the partition is an integrally formed structure.

2. The fresh air device according to claim 1, characterized in that: The heat exchange core extends along a first direction, and the partition includes a partition plate and an isolation plate, wherein the partition plate and the isolation plate are respectively connected to two sides of the heat exchange core along a second direction, the partition plate separates the heat exchange chamber into a return air channel and a supply air channel, and the isolation plate separates the heat exchange chamber into a fresh air channel and an exhaust air channel, wherein the first direction and the second direction are perpendicular.

3. The fresh air device according to claim 2, characterized in that: The return air channel is located at a first side of the supply air channel along a third direction, and the fresh air channel is located at a first side of the exhaust air channel along the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

4. The fresh air device according to claim 3, characterized in that: A return air inlet and an air supply inlet are formed on the first side wall of the shell along the second direction, and a fresh air inlet and an exhaust air inlet are formed on the second side wall of the shell along the second direction, the return air inlet is connected to the return air channel, the fresh air inlet is connected to the fresh air channel, and the supply air inlet and the exhaust air inlet are both connected to the fan cavity.

5. The fresh air device according to claim 4, characterized in that: The partition plate includes a guide plate body, a surface of the guide plate body facing the first side wall is a return air guide surface, the return air guide surface is a portion of the surface of the return air channel, and the return air guide surface includes a recessed area recessed in a direction away from the first side wall.

6. The fresh air device according to claim 2, characterized in that: The air supply channel comprises an expansion section, and the area of ​​the flow cross section of the expansion section increases from a direction away from the fan cavity toward a direction close to the fan cavity.

7. The fresh air device according to claim 2, characterized in that: The partition member includes a partition plate, a surface of the partition plate is a partial surface of the fan cavity, one end of the partition plate along the third direction is connected to the partition plate, and a portion of the partition plate protrudes toward the direction close to the partition plate.

8. The fresh air device according to claim 2, characterized in that: The partition includes an air diffuser plate, a surface of which is a partial surface of the fan cavity, one end of the air diffuser plate along the third direction is connected to the isolation plate, and the other end of the air diffuser plate along the third direction extends obliquely away from the isolation plate.

9. The fresh air device according to any one of claims 1 to 8, characterized in that: The partition includes a support body, the support body is formed with an open groove opening toward the heat exchange core, and a portion of the heat exchange core is accommodated in the open groove.

10. The fresh air device according to claim 9, characterized in that: The heat exchange core extends along a first direction, and the support body is located on a second side of the heat exchange core along a third direction. The support body includes a first inclined plate, a second inclined plate and a support plate. A portion of the support plate is recessed in a direction away from the heat exchange core to form the open groove, and the first inclined plate and the second inclined plate are respectively connected to two sides of the support plate along the second direction.

11. The fresh air device according to claim 10, characterized in that: The heat exchange core comprises an intersecting air supply outlet surface and an air exhaust outlet surface, wherein the connection between the air supply outlet surface and the air exhaust outlet surface is a first corner, and the first corner is accommodated in the open groove.

12. The fresh air device according to claim 10, characterized in that: The heat exchange core includes a plurality of heat exchange units, and the plurality of heat exchange units are arranged along a first direction.

13. The fresh air device according to claim 9, characterized in that: The partition includes a guide piece arranged on the support body, and the guide piece abuts against one side of the heat exchange core along the second direction.

14. The fresh air device according to claim 9, characterized in that: The partition comprises two frames, each of which is provided with a vent, and the two frames are connected to two opposite sides of the support body along the second direction, and the heat exchange core is in contact with the two frames.

15. The fresh air device according to claim 14, characterized in that: The fresh air device includes a stopper, one end of the frame along the third direction is connected to the support body, the stopper is arranged at one end of the frame along the third direction away from the support body, and the stopper abuts against a portion of the heat exchange core along the third direction away from the support body.

16. The fresh air device according to any one of claims 1 to 8, characterized in that: The shell comprises a casing, the casing has a bottom plate and a plurality of side plates, the plurality of side plates are arranged on the same side of the bottom plate in a thickness direction, and the casing is an integrally formed structure.

17. The fresh air device according to any one of claims 1 to 8, characterized in that: The fresh air device includes a partition plate, which divides the fan chamber into an air supply chamber and an air exhaust chamber that are independent of each other. The partition plate includes a bending portion, and the bending portion is bent toward the air supply chamber.

Images