CN222298090U

CN222298090U - Fresh air equipment

Info

Publication number: CN222298090U
Application number: CN202421144833.0U
Authority: CN
Inventors: 李宇; 刘菊; 涂文飞; 李艳荣; 石风华; 廖龙辉
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Midea Group Wuhan HVAC Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Midea Group Wuhan HVAC Equipment Co Ltd
Priority date: 2024-05-23
Filing date: 2024-05-23
Publication date: 2025-01-03
Anticipated expiration: 2034-05-23

Abstract

The application relates to the technical field of air conditioning, and provides fresh air equipment which comprises a shell, a heat exchange core and a supporting seat, wherein the heat exchange core is positioned in the shell, the supporting seat is positioned in the shell, an opening groove extending along a first direction is formed in the supporting seat, one side wall of the shell along a second direction is a chassis, the supporting seat is arranged on the chassis, a part of the heat exchange core is accommodated in the opening groove, and the supporting seat is of an integrated structure, wherein the first direction and the second direction are vertical. The support seat is of an integrated structure, so that the assembly steps of the support seat can be saved, the integrated support seat can avoid the problems of wrong assembly, missing assembly and the like of a plurality of parts, and the assembly efficiency is improved.

Description

Fresh air equipment

Technical Field

The application relates to the technical field of air conditioning, in particular to fresh air equipment.

Background

This section is intended to provide a background or context for embodiments of the application. The description herein is not admitted to be prior art by inclusion in this section.

The fresh air device may be used to deliver outdoor airflow into the room and to exhaust indoor airflow out of the room. In the related art, a heat exchange core is arranged in a shell of the fresh air equipment and is used for exchanging heat between indoor air flow and outdoor air flow, and the heat exchange core is inconvenient to install.

Disclosure of utility model

In view of this, it is desirable to provide a fresh air appliance that facilitates the installation of the heat exchange core.

The embodiment of the application provides fresh air equipment, which comprises the following components:

A housing;

A heat exchange core located within the housing;

The support seat is positioned in the shell, the support seat is provided with an open slot extending along a first direction, one side wall of the shell along a second direction is a chassis, the support seat is arranged on the chassis, part of the heat exchange core is accommodated in the open slot, and the support seat is of an integrated structure, wherein the first direction and the second direction are vertical.

In some embodiments, the support base includes a support body and a fixing piece, the fixing piece is abutted against the chassis, the support body is connected with the fixing piece, and the support body forms the open slot.

In some embodiments, the support base includes a support body, the support body includes a first inclined plate, a second inclined plate and a support plate, a part of the support plate is recessed in a direction away from the heat exchange core to form the open slot, and the first inclined plate and the second inclined plate are respectively connected to two sides of the support plate along a third direction, where the first direction, the second direction and the third direction are mutually perpendicular.

In some embodiments, the first inclined plate and the chassis have an included angle of 90-160 degrees and/or,

The included angle between the second inclined plate and the chassis is 0-113 degrees.

In some embodiments, the heat exchange core includes a plurality of heat exchange cells arranged sequentially along a first direction.

In some embodiments, the heat exchange core includes a first side and a second side that intersect, where the junction of the first side and the second side is a first corner, and the first corner is accommodated in the open slot.

In some embodiments, the angle between the second side and the inner surface of the chassis is gamma, wherein 15 deg. gamma.ltoreq.45 deg..

In some embodiments, the fresh air device comprises a guide frame connected with the supporting seat, and the guide frame abuts against one side of the heat exchange core along the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

In some embodiments, the guide frame includes a guide piece disposed perpendicular to the first direction, the guide piece abutting one side of the heat exchange core in the third direction.

In some embodiments, the guide piece is formed with a flow hole.

In some embodiments, the guide frame includes a support lug, a connecting piece and a plurality of the guide piece, a plurality of the guide piece is along first direction interval setting, the connecting piece is connected all the guide piece, two the support lug is along first direction interval setting, two the support lug is connected respectively one the guide piece, the support lug with the supporting seat is connected.

In some embodiments, a heat exchange cavity and a fan cavity are formed in the shell, the heat exchange core and the supporting seat are both located in the heat exchange cavity, the fresh air device comprises a partition plate, the partition plate divides the fan cavity into an air supply chamber and an exhaust chamber which are distributed along a third direction, the partition plate comprises a bending part, the bending part is bent towards the air supply chamber, and the first direction, the second direction and the third direction are mutually perpendicular.

In some embodiments, the fresh air device comprises:

The fresh air fan is positioned in the air supply chamber;

The air exhaust fan is positioned in the air exhaust chamber, and the axes of the fresh air fan and the air exhaust fan extend along a first direction.

In some embodiments, the fresh air device comprises a partition located in the housing, the partition comprises a partition plate and a partition plate, the heat exchange core extends along a first direction, the heat exchange core surrounds a circumferential surface of the first direction and comprises a return air inlet surface, a fresh air inlet surface, a second side surface and a first side surface which are sequentially connected, the connection of the fresh air inlet surface and the second side surface is a second corner, the connection of the return air inlet surface and the first side surface is a third corner, the partition plate and the partition plate are located on two sides of the heat exchange core along the third direction respectively, the second corner is connected with the partition plate, and the third corner is connected with the partition plate, wherein the first direction, the second direction and the third direction are mutually perpendicular.

According to the fresh air equipment provided by the embodiment of the application, the supporting seat can be used for supporting the heat exchange core, the open slot is used for positioning and limiting the heat exchange core, so that the displacement of the heat exchange core is avoided to a certain extent, and the assembly and the fixation are convenient. The support seat is of an integrated structure, so that the assembly steps of the support seat can be saved, the integrated support seat can avoid the problems of wrong assembly, missing assembly and the like of a plurality of parts, and the assembly efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a fresh air device according to an embodiment of the present application;

FIG. 2 is a schematic view of the fresh air device of FIG. 1 with the cover omitted from another view, wherein the first airflow path X1 is an indoor airflow path, and the second airflow path X2 is an outdoor airflow path;

FIG. 3 is a partial cross-sectional view of the fresh air device of FIG. 1, wherein the dashed arrows schematically illustrate the flow direction of the indoor and outdoor air streams;

FIG. 4 is a schematic view showing the assembly of a part of the structure of the housing and the support base according to an embodiment of the present application;

FIG. 5 is a schematic view showing an assembly of a heat exchange core and a support base according to an embodiment of the present application;

FIG. 6 is a schematic view of a supporting seat according to an embodiment of the application;

FIG. 7 is a schematic view of a portion of the structure of the fresh air device of FIG. 1 from another perspective;

FIG. 8 is a schematic view of a further view of a portion of the structure of the fresh air device of FIG. 1;

fig. 9 is a schematic cross-sectional view of the structure of fig. 2.

Description of the reference numerals

The air conditioner comprises a shell 1, an air return opening 1a, an air supply opening 1b, a fresh air opening 1c, an air outlet 1d, a chassis 11, a first side wall 12, a second side wall 13, a cover 14, a heat exchange cavity 10a, an air return channel 101a, an air supply channel 102a, a fresh air channel 103a, an air exhaust channel 104a, a fan cavity 10b, an air supply chamber 101b and an air exhaust chamber 102b;

The heat exchange unit comprises a heat exchange core 2, a heat exchange unit 210, a first side surface 2', a second side surface 2', a first corner 201, a second corner 202, a third corner 203, a fourth corner 204, a return air inlet surface 2a, a fresh air inlet surface 2b, an air supply outlet surface 2c and an air exhaust outlet surface 2d;

The supporting seat 3, the open slot 3a, the convex hull 3b, the limiting hole 3c, the supporting body 31, the first inclined plate 311, the second inclined plate 312, the supporting plate 313 and the fixing piece 32;

The guide frame 4, the positioning hole 4a, the guide piece 41, the circulation hole 41a, the support lug 42, the connecting piece 43, the partition plate 5, the bending part 51, the folded edge 52, the fresh air fan 6, the exhaust fan 7, the partition 8, the partition plate 81, the partition plate 82, the partition plate 83, the air expansion plate 84, the frame 85, the air vent 85a, the stop piece 9 and the connecting flange 10.

Detailed Description

The embodiments of the present application and the technical features of the embodiments may be combined with each other without conflict, and the detailed description in the detailed description should be taken as an explanatory description of the gist of the present application and should not be construed as undue limitation of the present application.

In the embodiment of the application, the lower direction refers to the direction of the ground, the upper direction is opposite to the lower direction, the first direction, the second direction and the third direction are in a three-dimensional vertical coordinate system which is vertical to each other, and the first side of the second direction and the second side of the second direction are opposite. In the embodiment of the application, the azimuth or the positional relationship of the first direction, the second direction and the third direction is based on the azimuth or the positional relationship shown in the drawings. It is to be understood that such directional terms are merely used to facilitate the description of the application and to simplify the description, and are not intended to indicate or imply that the devices or elements so referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus are not to be construed as limiting the application. The application will be described in further detail with reference to the accompanying drawings and specific examples.

In the related art, the heat exchange core is mounted to the shell through a plurality of parts such as a supporting piece and a mounting guide rail, the plurality of parts such as the supporting piece and the mounting guide rail are fixed into a whole through a plurality of rivets, the whole is fixed to the shell through the rivets, the assembly is complex, the assembly efficiency is low, the supporting piece and the mounting guide rail can also easily block the airflow circulation of the heat exchange core, and the wind resistance is increased.

Referring to fig. 1 to 5, an embodiment of the present application provides a fresh air device, which includes a housing 1, a heat exchange core 2 and a support seat 3, wherein the heat exchange core 2 is located in the housing 1, and the support seat 3 is located in the housing 1. The supporting seat 3 is formed with an open slot 3a extending along a first direction, one side wall of the shell 1 along a second direction is a chassis 11, the supporting seat 3 is arranged on the chassis 11, a part of the heat exchange core 2 is accommodated in the open slot 3a, and the supporting seat 3 is of an integrated structure, wherein the first direction is perpendicular to the second direction.

Indoor air flow is also commonly referred to as return air, and outdoor air flow is also commonly referred to as fresh air. Both the indoor air flow and the outdoor air flow through the heat exchange core 2 and exchange heat through the heat exchange core 2, thereby realizing heat recovery and adjusting the temperature and/or humidity of the outdoor air flow entering the indoor environment. The fresh air equipment realizes a fresh air function and an exhaust function. The fresh air function is the function that outdoor fresh air enters the room, and the exhaust function is the function that indoor dirty air is discharged out of the room.

In the process of installing the heat exchange core 2, the heat exchange core 2 can be placed in the supporting seat 3 from the side far away from the chassis 11, and the part of the heat exchange core 2 is inserted into the open groove 3a, so that the operation is simple.

According to the fresh air equipment provided by the embodiment of the application, the supporting seat 3 can be used for supporting the heat exchange core 2, the open slot 3a is used for positioning and limiting the heat exchange core 2, so that the displacement of the heat exchange core 2 is avoided to a certain extent, and the assembly and the fixation are convenient. The supporting seat 3 is of an integrated structure, so that the assembling steps of the supporting seat 3 can be saved, the integrated supporting seat 3 can avoid the problems of wrong assembly, missing assembly and the like of a plurality of parts, and the assembling efficiency is improved.

In one embodiment, referring to fig. 4 to 6, the heat exchange core 2 includes a plurality of heat exchange cells 210 sequentially arranged along the first direction. That is, the individual heat exchange cells 210 may be separately disassembled and recombined into the heat exchange core 2. In the process of assembling the heat exchange core 2, the plurality of heat exchange units 210 can enter the open groove 3a one by one and can slide in the open groove 3a along the first direction, so that the plurality of heat exchange units 210 are arranged along the first direction, and the assembling difficulty is reduced.

It is understood that the cross-sectional shapes of the respective heat exchanging units 210 may be identical and the sizes may be equal, taking a plane perpendicular to the first direction as a cross-section.

In one embodiment, referring to fig. 5 and 6, the heat exchange core 2 includes a first side 2 'and a second side 2″ intersecting each other, and a connection portion between the first side 2' and the second side 2″ is a first corner 201, and the first corner 201 is accommodated in the open slot 3 a. The first side 2' and the second side 2 "may be used for air flow.

In this embodiment, with the plane perpendicular to the first direction as the projection plane, the outline shape projected by the first corner 201 may be substantially V-shaped or U-shaped, the projection shape of the open slot 3a may be substantially V-shaped or U-shaped, the first corner 201 is accommodated in the open slot 3a, and the heat exchange core 2 is placed on the chassis 11 in an inclined standing posture, so that the chassis 11 can be prevented from shielding the first side 2' and the second side 2″ and air flow is facilitated.

In an embodiment, referring to fig. 2 to 8, the fresh air device includes a partition 8 located in the casing 1, the partition 8 includes a partition 81 and a partition plate 82, the heat exchange core 2 extends along a first direction, a 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, a second side surface 2″ and a first side surface 2 'which are sequentially connected, a connection portion of the fresh air inlet surface 2b and the second side surface 2″ is a second corner 202, a connection portion of the return air inlet surface 2a and the first side surface 2' is a third corner 203, the partition 81 and the partition plate 85 are respectively located at two sides of the heat exchange core 2 along the third direction, the second corner 202 is connected with the partition plate 82, and the third corner 203 is connected with the partition 81.

The first side 2' may be an air supply and outlet face 2c, and the second side 2″ may be an air exhaust and outlet face 2d.

The air exhaust and air inlet surface 2d is opposite to the air return and air inlet surface 2a, the air supply and air outlet surface 2c is opposite to the fresh air inlet surface 2b, and the air return and air inlet surface 2a, the fresh air inlet surface 2b, the air exhaust and air outlet surface 2d and the air supply and air outlet surface 2c are sequentially connected.

The return air inlet surface 2a is the surface where indoor air flow enters the heat exchange core 2. The fresh air inlet surface 2b is the surface where the outdoor air flow enters the heat exchange core 2. The exhaust air outlet surface 2d is the surface of the indoor air flow which is exhausted out of the heat exchange core 2. The air supply/outlet surface 2c is a surface from which the outdoor air flows out of the heat exchange core 2.

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

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

The return air inlet face 2a, the fresh air inlet face 2b, the exhaust air outlet face 2d and the supply air outlet face 2c are sequentially connected, and in the plane projection perpendicular to the first direction, the projection formed by the return air inlet face 2a, the fresh air inlet face 2b, the exhaust air outlet face 2d and the supply air outlet face 2c together is quadrilateral. That is, the cross section of the heat exchange core 2 is quadrangular with a plane perpendicular to the first direction as a cross section, and may be, for example, a regular quadrangle. The heat exchange core 2 of the present application has a smaller cross-sectional area and a smaller dimension in the third direction and the second direction than the heat exchange core having a hexagonal cross-section or more.

The air exhaust air outlet face 2d is deviated from the return air inlet face 2a, and the air supply air outlet face 2c is deviated from the fresh air inlet face 2b, so that the indoor air flow and the outdoor air flow can flow in a cross mode, the heat exchange efficiency can be improved, and the heat exchange performance can be maintained by utilizing the size of the heat exchange core 2 along the first direction under the condition that the cross section size of the heat exchange core 2 is smaller.

In this embodiment, the first corner 201 is accommodated in the open groove 3a, the second corner 202 may be fixed to the partition plate 82, and the third corner 203 may be fixed to the partition plate 81. In this way, the heat exchange core 2 is inclined and laterally erected on the chassis 11, the outdoor air flow after heat exchange from the air supply and outlet face 2c and the outdoor air flow after heat exchange from the air exhaust and outlet face 2d are hardly blocked by the chassis 11, under the condition that the internal space of the shell 1 is limited, the air inlet and outlet smoothness in four directions and the effective heat exchange area of the heat exchange core 2 are considered, the heat exchange efficiency is higher, the unit volume efficiency optimization is realized, and the enthalpy exchange efficiency of the same large machine type is achieved in a limited volume.

The heat exchange core 2 extending in the first direction means that the air flow enters or exits the heat exchange core 2 from a circumferential direction surrounding the first direction. For example, the heat exchange core 2 extending in the first direction may be a plurality of heat exchange medium sheets of the heat exchange core 2 stacked at intervals in the first direction. The heat exchange medium sheet is used for heat exchange between indoor air flow and outdoor air flow. A spacing space is formed between two adjacent heat exchange medium plates. The adjacent two spaces can respectively circulate indoor air flow and outdoor air flow, and the indoor air flow and the outdoor air flow exchange heat through the heat exchange medium plates. That is, the indoor air flow and the outdoor air flow enter and exit the heat exchange core 2 from the circumferential direction of the heat exchange core 2 around the first direction. Heat exchange media sheets may be used to exchange heat but not circulate air.

In an embodiment, referring to fig. 3 to 6, the support base 3 includes a support body 31 and a fixing piece 32, the fixing piece 32 abuts against the chassis 11, the support body 31 is connected to the chassis 11, and the support body 31 forms an open slot 3a. Illustratively, the support 31 is coupled to a side of the anchor tab 32 that is remote from the chassis 11 in the second direction.

Illustratively, the support 31 has fixing pieces 32 attached to both sides in the third direction. In this way, the stress of the fixing piece 32 is more balanced, and the gravity center of the supporting seat 3 is more stable.

In this embodiment, the fixing piece 32 can increase the contact area between the supporting seat 3 and the chassis 11, improve the stress of the supporting seat 3, and make the supporting seat 3 be more stably fixed on the chassis 11, so as to more stably support the heat exchange core 2.

Illustratively, the support base 3 may be detachably connected or non-detachably connected to the chassis 11. Removable connections include, but are not limited to, screw connections or bolted connections, and the like.

In one embodiment, the securing plate 32 may be secured to the chassis 11 by fasteners.

Fasteners include, but are not limited to, screws or bolts, and the like.

In an embodiment, referring to fig. 3 to 6, the support base 3 includes a support body 31, the support body 31 includes a first inclined plate 311, a second inclined plate 312 and a support plate 313, a portion of the support plate 313 is recessed in a direction away from the heat exchange core 2 to form an open slot 3a, and the first inclined plate 311 and the second inclined plate 312 are respectively connected to two sides of the support plate 313 along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

In this embodiment, the first inclined plate 311 and the second inclined plate 312 can not only provide a supporting force for the supporting plate 313 to stably support the heat exchange core 2, but also guide the air flow, reducing the air flow blocking of the surrounding areas of the first inclined plate 311 and the heat exchange core 2, and the air flow blocking of the surrounding areas of the second inclined plate 312 and the heat exchange core 2, thereby reducing the wind resistance. For example, the outdoor air flow after heat exchange from the air supply and outlet surface 2c can flow under the guidance of the first inclined plate 311, so as to reduce dead angles of the air flow. The outdoor air flow after heat exchange from the air exhaust and air outlet face 2d can flow under the guide of the second inclined plate 312, so that the dead angle of the air flow is reduced, the resistance of an air duct is reduced, and the rotating speed and the noise of the whole machine are reduced.

In an embodiment, referring to fig. 3 and 5, the first inclined plate 311 may be substantially parallel to the exhaust air outlet surface 2d, and the second inclined plate 312 may be substantially parallel to the supply air outlet surface 2c. In this way, the direction of the outdoor air flow flowing out of the heat exchange core 2 is approximately parallel to the first inclined plate 311, the direction of the indoor air flow flowing out of the heat exchange core 2 is approximately parallel to the second inclined plate 312, and the air path is smoother.

In some embodiments, referring to fig. 6, two ends of the first inclined plate 311 are respectively connected to one fixing plate 32 and the supporting plate 313, and two ends of the second inclined plate 312 are respectively connected to the other fixing plate 32 and the supporting plate 313.

In one embodiment, referring to fig. 4 and 5, the included angle β between the first inclined plate 311 and the chassis 11 is 90 ° to 160 °. Illustratively, the included angle β between the first swash plate 311 and the chassis 11 is 90 °, 100 °, 110 °, 120 °, 130 °, 140 °, 150 °, 155 °, 160 °, or the like. The fixing piece 32 may be parallel to the chassis 11, and an included angle between the first inclined plate 311 and the fixing piece 32 connected with the first inclined plate is 90 ° to 160 °. The inclination angle of the heat exchange core 2 is adjusted by adjusting the included angle between the first inclined plate 311 and the chassis 11, so that the volume of the air channels on two sides of the heat exchange core 2 along the third direction is adjusted, the included angle between the first inclined plate 311 and the chassis 11 is 90-160 degrees, the heat exchange core 2 is biased to one side of the second inclined plate 312, so that the space of the heat exchange core 2, which is close to the first inclined plate 311, is increased, the volume of the air channel, such as the air supply channel 102a, which is close to the first inclined plate 311 is increased, is balanced, the volume of the air supply channel 102a and the volume of the air exhaust channel 104a are balanced, so that the wind speed in the air supply channel and the air exhaust channel 104a are both considered, and the noise is reduced.

In one embodiment, referring to fig. 4 and 5, the included angle α between the second inclined plate 312 and the chassis 11 is 0 ° to 113 °. Illustratively, the angle α between the second swash plate 312 and the chassis 11 is 0 °, 10 °, 20 °, 50 °, 80 °, 100 °, 105 °, 110 °, or 113 °. The fixing piece 32 may be parallel to the chassis 11, and an included angle between the second inclined plate 312 and the fixing piece 32 connected thereto is 0 ° to 113 °. The inclination angle of the heat exchange core 2 is adjusted by adjusting the included angle between the second inclined plate 312 and the chassis 11, so that the volume of the air channels on two sides of the heat exchange core 2 along the third direction is adjusted, the included angle between the second inclined plate 312 and the chassis 11 is 0-113 degrees, the heat exchange core 2 is biased to one side of the second inclined plate 312, so that the space of the heat exchange core 2, which is close to the first inclined plate 311, is increased, the volume of the air channel, such as the air supply channel 102a, which is close to the first inclined plate 311 is increased, is balanced, the volume of the air supply channel 102a and the air exhaust channel 104a are balanced, so that the wind speed in the air supply channel and the air exhaust channel 104a is balanced, and the noise is reduced.

The material of the support base 3 includes, but is not limited to, metal or plastic. The support base 3 may be a sheet metal structure. The sheet metal structure is a structure formed by cold working such as stamping, shearing or bending a metal plate. The supporting seat 3 has good structural strength and low manufacturing cost.

The material of the chassis 11 includes, but is not limited to, metal or plastic. The chassis 11 may be a sheet metal structure. The sheet metal structure is a structure formed by cold working such as stamping, shearing or bending a metal plate.

In one embodiment, referring to fig. 3 to 6, the second side 2″ forms an angle γ with the inner surface of the chassis 11, wherein 15 ° and 45 °. Illustratively, γ may be 15 °, 17 °, 18 °, 20 °, 23 °, 25 °, 30 °, 45 °, or the like.

For example, the angle between the first side 2' and the second side 2″ may be substantially 90 °. The cross-sectional shape of the heat exchange core 2 is a regular quadrangle with a plane perpendicular to the first direction as a cross-section.

In this embodiment, the included angle γ between the second side 2″ and the inner surface of the chassis 11 is between 15 ° and 45 °, on one hand, the smoothness of air inlet and outlet in four directions and the effective heat exchange area of the heat exchange core 2 are considered, and the volume of the heat exchange core 2 is smaller than that of the heat exchange core of the fresh air device in the related art, but the heat exchange efficiency is higher, on the other hand, considering that the fresh air filter screen on the fresh air path comprises a high-efficiency filter screen, the pressure loss is larger, the load of the fresh air motor is larger, so the air supply channel 102a is relatively wide, the air exhaust channel 104a is relatively narrow, the loads of the fresh air motor and the air exhaust motor are relatively balanced, and the whole power and the service life of the motor are improved.

It will be appreciated that the fresh air motor is used to drive the rotor of the fresh air fan 6 to rotate. The exhaust motor is used for driving the wind wheel of the exhaust fan 7 to rotate.

As an example, the heat exchange core 2 extends in a first direction with a cross-section taken in a plane perpendicular to the first direction, the cross-section of the heat exchange core 2 being in the shape of a regular quadrilateral, the heat exchange core 2 comprising a plurality of heat exchange medium sheets stacked in the first direction, the second side 2 "having an angle γ between 15 ° and 45 ° with the inner surface of the chassis 11. For example, the size of the heat exchange medium sheet in the first direction may be 1.3mm (millimeters), and the number of heat exchange medium sheets according to the present application may be increased by about 81% compared to stacking the heat exchange medium sheets in the third direction in the related art. Compared with the prior art, the fresh air equipment has the advantages that the volume of the fresh air equipment is reduced by about 51%, but the heat exchange efficiency is higher, the unit volume efficiency is optimized, and the enthalpy exchange efficiency of the equivalent large machine type is achieved in a limited volume.

In an embodiment, referring to fig. 3 to 6, the fresh air device includes a guide frame 4 connected to the support base 3, where the guide frame 4 abuts against one side of the heat exchange core 2 along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

Taking the example that the first corner 201 of the heat exchange core 2 is located in the open slot 3a, the heat exchange core 2 is inclined and laterally erected on the supporting seat 3, in this embodiment, the heat exchange core 2 is inserted into the open slot 3a along the second direction, the guide frame 4 guides the heat exchange core 2, so as to reduce the requirement on assembly skill, improve the assembly efficiency, the guide frame 4 can also strengthen the support of the heat exchange core 2, avoid the unstable gravity center of the heat exchange core 2 from falling out of the open slot 3a, and the size of the open slot 3a can be relatively smaller, so as to avoid the wall surface of the open slot 3a from shielding the heat exchange core 2.

In one embodiment, referring to fig. 3 to 6, the guide frame 4 includes a guide plate 41, the guide plate 41 is disposed perpendicular to the first direction, and the guide plate 41 abuts against one side of the heat exchange core 2 along the second direction. The guide piece 41 being disposed perpendicular to the first direction means that the thickness direction of the guide piece 41 coincides with the first direction. The guide piece 41 has a simple structure, and the contact area between the guide piece 41 and the heat exchange core 2 is small, so that the influence on the airflow flow of the heat exchange core 2 can be greatly reduced.

In one embodiment, referring to fig. 5 to 6, the guide piece 41 is formed with a flow hole 41a. For example, the flow holes 41a may penetrate both sides of the guide piece 41 opposite in the first direction. The air flow can circulate through the circulation holes 41a, reducing the air flow blocking and also reducing the dead weight of the guide piece 41.

In an embodiment, referring to fig. 3 to 6, the guide frame 4 includes a support lug 42, a connecting piece 43 and a plurality of guide pieces 41, the plurality of guide pieces 41 are arranged at intervals along a first direction, the connecting piece 43 connects all the guide pieces 41, two support lugs 42 are arranged at intervals along the first direction, two support lugs 42 are respectively connected with one guide piece 41, and the support lugs 42 are connected with the support seat 3. So designed, the guide frame 4 has simple structure, light weight and good structural strength, the contact area between the guide frame 4 and the heat exchange core 2 is small, the blocking of the air flow of the heat exchange core 2 is reduced, and the heat exchange core 2 can be stably supported and effectively guided by a plurality of guide sheets 41.

The guide frame 4 is made of metal or plastic, etc. The guide frame 4 may be a sheet metal structure. The sheet metal structure is a structure formed by cold working such as stamping, shearing or bending a metal plate.

In one embodiment, referring to fig. 6, the support base 3 is provided with a plurality of guide frames 4 along a first direction.

The guide frame 4 and the support base 3 may be detachably connected, including but not limited to welding, such as spot welding, or non-detachably connected. Removable connections include, but are not limited to, screw or bolt connections.

In an embodiment, referring to fig. 5 and 6, one of the guide frame 4 and the support seat 3 is formed with a convex hull 3b, and the other of the guide frame 4 and the support seat 3 is formed with a positioning hole 4a, and the convex hull 3b is disposed in the positioning hole 4a in a penetrating manner. Illustratively, lugs 42 may be formed with a convex hull 3b or locating holes 4a. The convex hull 3b may be first inserted into the positioning hole 4a, and then the guide frame 4 may be fixed to the support base 3 by welding or screw connection.

In some embodiments, referring to fig. 6, the supporting seat 3, such as the fixing piece 32, may form a limiting hole 3c, and the chassis 11 forms a limiting post, where the limiting post is disposed in the limiting hole 3 c. The limiting post may be first inserted into the limiting hole 3c, and then the supporting seat 3 may be fixed to the chassis 11 by welding or screw connection.

In an embodiment, referring to fig. 2, 7 and 8, a heat exchange cavity 10a and a fan cavity 10b are formed in a housing 1, a heat exchange core 2 and a supporting seat 3 are both located in the heat exchange cavity 10a, a fresh air device includes a partition plate 5, the partition plate 5 partitions the fan cavity 10b into an air supply chamber 101b and an air exhaust chamber 102b arranged along a third direction, the partition plate 5 includes a bending portion 51, and the bending portion 51 is bent toward the air supply chamber 101b, wherein the first direction, the second direction and the third direction are perpendicular to each other.

The exhaust chamber 102b and the blower chamber 101b may be independent of each other, that is, the indoor air flow in the exhaust chamber 102b does not enter the blower chamber 101b, the outdoor air flow in the blower chamber 101b does not enter the exhaust chamber 102b, and no air flows between the exhaust chamber 102b and the blower chamber 101 b.

For example, both ends of the partition plate 5 in the first direction may be connected to the side wall of the casing 1 and the partition 8 of the fresh air device, respectively.

In this embodiment, the air volume of the exhaust chamber 102b is larger than that of the air supply chamber 101b, and the bending portion 51 is bent toward the air supply chamber 101b to increase the volume of the exhaust chamber 102b, reduce the air velocity in the exhaust chamber 102b, and reduce noise.

In one embodiment, referring to fig. 8, at least one end of the partition plate 5 along the first direction may form a folded edge 52. The folded edge 52 not only reinforces the rigidity of the partition plate 5, but also makes contact seal with a seal layer of the inner surface of the casing, the partition 8, or the like.

In one embodiment, referring to fig. 7 to 9, the housing 1 includes a first side wall 12 and a second side wall 13 opposite to each other along a third direction, the first side wall 12 is a part of the air supply chamber 101b, the second side wall 13 is a part of the air exhaust chamber 102b, a distance between the bending portion 51 and the first side wall 12 is L1, and a distance between the bending portion 51 and the second side wall 13 is L2, wherein 1< L2/L1 is less than or equal to 1.5. That is, the ratio of L2 to L1 is greater than 1 and not less than 1.5. Illustratively, L2/L1 may be 1.1, 1.2, 1.3, 1.5, or the like. On the other hand, the bent portion 51 can avoid the indoor air flow from the exhaust duct 104a, avoid turbulence and turbulence, and reduce wind noise by optimizing the volumes of the air supply chamber 101b and the exhaust chamber 102 b. On the other hand, the bending part 51 can ensure that the air supply chamber 101b and the air exhaust chamber 102b can be used for a fan with one size, so that the problems of increasing the material cost and being difficult to assemble and distinguish are avoided.

In one embodiment, referring to fig. 2, the fresh air device includes a fresh air fan 6 and an exhaust fan 7, the fresh air fan 6 is located in the air supply chamber 101b, the exhaust fan 7 is located in the exhaust chamber 102b, and axes of the fresh air fan 6 and the exhaust fan 7 all extend along the first direction.

The fresh air fan 6 drives fresh air to flow, namely, drives outdoor airflow to flow, and the exhaust fan 7 drives return air to flow, namely, drives indoor airflow to flow.

The larger the radial dimension of the fresh air fan 6 and the exhaust fan 7 is, the larger the air quantity of the fresh air fan 6 and the exhaust fan 7 is, and on the contrary, the smaller the radial dimension of the fresh air fan 6 and the exhaust fan 7 is, the smaller the air quantity of the fresh air fan 6 and the exhaust fan 7 is. Taking the example that the second direction is consistent with the up-down direction, if the axes of the fresh air fan 6 and the exhaust fan 7 are along the second direction, that is, the fresh air fan 6 and the exhaust fan 7 are arranged on the chassis 11 of the casing 1 in a lying-down manner, increasing the radial sizes of the fresh air fan 6 and the exhaust fan 7 can result in the oversize of the whole machine, and if the radial sizes of the fresh air fan 6 and the exhaust fan 7 are reduced for reducing the size of the whole machine, the air volumes of the fresh air fan 6 and the exhaust fan 7 can be too small. In other words, in the case where the fresh air fan 6 and the exhaust air fan 7 are large in the radial direction, the size of the casing 1 in the first direction is excessively increased, which is disadvantageous in terms of miniaturization of the product.

In this embodiment, the axis of new trend fan 6 and the axis of the fan 7 of airing exhaust all extend along first direction, and under the circumstances that new trend fan 6 and fan 7 of airing exhaust are great along radial size, new trend fan 6 and fan 7 of airing exhaust can not excessively increase the size of complete machine along first direction, reduce the volume that new trend fan 6 and fan 7 of airing exhaust occupy, structural layout is more reasonable, and the complete machine volume is littleer.

It will be appreciated that the axial direction and the radial direction of the fresh air fan 6 are perpendicular to each other, and the axis of the fresh air fan 6 is a straight line extending in the axial direction. The axial direction and the radial direction of the exhaust fan 7 are mutually perpendicular, and the axis of the exhaust fan 7 is a straight line extending along the axial direction.

In some embodiments, the fresh air fan 6 and the exhaust fan 7 are centrifugal fans, and the centrifugal fans include a fan housing and a wind wheel, where the wind wheel is located in the fan housing. The wind wheel rotates to drive the airflow to flow, and the fan shell plays a role in guiding flow. The axis of the rotor and the axis of the fan housing may both extend in a first direction, such that increasing the radial dimensions of the rotor and the fan housing does not substantially increase the dimensions in the first direction.

In one embodiment, the blower housing is a volute.

In one embodiment, the fan housing is formed with an air inlet on both sides along the first direction, and an air outlet is formed around the circumferential surface of the fan housing in the first direction. The air flow enters the fan shell through the two air flow inlets and then flows out through the air flow outlet.

The fresh air equipment provided by the embodiment of the application can be mounted on a ceiling or a ceiling board. The ceiling plate can divide the indoor space into a ceiling space and a living space. The user carries out daily life in living space, and the furred ceiling space is not only used for beautifying interior decoration, but also used for installing other equipment. In one embodiment, the fresh air device is disposed in the suspended ceiling space. Like this, new trend equipment is hidden in the furred ceiling space, avoids the user to directly observe whole new trend equipment, has improved the visual pleasing to the eye degree. It is understood that the indoor space includes, but is not limited to, balconies, bathrooms, kitchens, etc., and may be a large residential home, a small residential home, or other type of production or living environment.

In the case that the fresh air equipment provided by the embodiment of the application is assembled on a ceiling or a ceiling board, the second direction is consistent with the up-down direction, the first side of the second direction can be the lower side, and the second side of the second direction can be the upper side. Taking the case 1 as an example of a substantially hexahedral shape, the second direction may be a thickness direction of the case 1, one of the first direction and the third direction may be a width direction of the case 1, and the other of the first direction and the third direction may be a length direction of the case 1. Taking fresh air equipment assembly as an example in the furred ceiling space, the dimension in the furred ceiling space along upper and lower direction is far less than the dimension in the furred ceiling space along first direction and third direction, and the thickness direction of shell 1 is along upper and lower direction, and fresh air equipment assembly to the furred ceiling space of being convenient for.

If the heat exchange core 2 extends in the second direction, that is, a plurality of heat exchange medium sheets are stacked in the second direction, the thickness of the housing 1 in the up-down direction is greatly increased, resulting in difficulty in assembling the whole machine into a mounting space having a small size in the up-down direction. If the size of the heat exchange core 2 in the second direction is reduced in order to accommodate the installation space having a smaller size in the up-down direction, the number of heat exchange medium sheets is too small or the space is too small, resulting in poor heat exchange effect.

In the application, the heat exchange core 2 extends along the first direction, so that the dimension of the heat exchange core 2 along the first direction can be larger, and the thickness of the shell 1 along the up-down direction can not be influenced, so that the thickness of the shell 1 along the up-down direction can be designed according to the requirement under the condition that the heat exchange efficiency is not influenced, and the installation requirement and the heat exchange requirement are met.

The whole size of the fresh air equipment in the related art is relatively large, the whole machine is heavy, the installation space for installing the fresh air equipment is limited, for example, the fresh air equipment is generally only suitable for a scene with large residential building and/or balcony ceiling space, in addition, the whole size of the fresh air equipment in the related art is relatively large, so that the maintenance space is small, the fresh air equipment is inconvenient to maintain, and the after-sales maintenance difficulty is increased. If the whole size of the fresh air equipment is reduced, the size of a heat exchange core and/or an air duct of the fresh air equipment is reduced, so that the heat exchange efficiency is reduced, and the performance problems of large pressure loss, small air quantity, high energy consumption, large noise and the like are caused by the rapid change of an air path due to the reduced size of each part of the air duct. In some cases, the whole size of the fresh air equipment in the related art is large, the plate used for isolating the air duct in the fresh air equipment is in a flat plate shape, the plate used for isolating the air duct is generally perpendicular to the chassis of the shell, the plate used for isolating the air duct does not have the flow guiding function, the air duct also comprises a plurality of 90-degree turns, the useless area in the shell is increased, the space in the shell is wasted, and the directions of indoor air flow and outdoor air flow are generally in curve flow, so that vortex flow can occur at the joint corners of the plate and the chassis, such as 90-degree turns, the heat exchange efficiency is affected, the pressure loss in the whole heat exchange process is increased, the motor load of the fresh air equipment is increased due to unsmooth air flow, the rotating speed is increased, and the noise and vibration of a machine are increased.

In one embodiment, referring to fig. 2, the heat exchange core 2 extends along a first direction, and the air supply chamber 101b and the air exhaust chamber 102b are located on the same side of the heat exchange core 2 along the first direction. That is, the fresh air fan 6 and the exhaust fan 7 are arranged along the third direction and are both located on the same side of the heat exchange core 2 along the first direction.

In this embodiment, if the fresh air fan 6 and the exhaust fan 7 are located on different sides of the heat exchange core 2 along the first direction, the fresh air fan 6 and the exhaust fan 7 occupy the space in the housing 1 along the first direction, so that the size of the housing 1 along the first direction increases, while the fresh air fan 6 and the exhaust fan 7 are located on the same side of the heat exchange core 2 along the first direction, the size of the housing 1 along the first direction is not increased by the fresh air fan 6 and the exhaust fan 7, and the structure of the fresh air fan 6, the exhaust fan 7 and the heat exchange core 2 is compact. The fresh air fan 6 and the exhaust fan 7 are distributed along the third direction, the space of the shell 1 along the third direction is fully utilized, and the space of the shell 1 along the first direction and the space of the shell along the third direction are comprehensively considered, so that the overall size of the fresh air equipment is reduced, and the miniaturization requirement is met.

In one embodiment, referring to fig. 2, 3, 7 and 8, the partition 8 defines the space in the housing 1 as a heat exchange chamber 10a and a fan chamber 10b, the partition 81 and the partition 82 are respectively connected to two sides of the heat exchange core 2 along the third direction, the partition 81 partitions the heat exchange chamber 10a into a return air channel 101a and a supply air channel 102a, and the partition 82 partitions the heat exchange chamber 10a into a fresh air channel 103a and an exhaust air channel 104a.

The two surfaces in the thickness direction of the partition plate 81 may be a partial surface of the return air duct 101a and a partial surface of the air supply duct 102a, respectively. The return air duct 101a is used to convey the indoor air flow to the heat exchange core 2, that is, the return air duct 101a is used to convey the indoor air flow before heat exchange. The air supply passage 102a is used for supplying the outdoor air flow from the heat exchange core 2, that is, the air supply passage 102a is used for supplying the heat exchanged outdoor air flow. The return air duct 101a and the air supply duct 102a are independent of each other, that is, the indoor air flow in the return air duct 101a does not enter the air supply duct 102a, the outdoor air flow in the air supply duct 102a does not enter the return air duct 101a, and no air flows between the return air duct 101a and the air supply duct 102 a.

The two surfaces in the thickness direction of the partition plate 82 may be a partial surface of the fresh air passage 103a and a partial surface of the exhaust passage 104a, respectively. The fresh air channel 103a is used for delivering an outdoor air flow to the heat exchange core 2, that is, the fresh air channel 103a is used for delivering an outdoor air flow before heat exchange. The exhaust passage 104a is used to convey the indoor air flow from the heat exchange core 2, that is, the exhaust passage 104a is used to convey the indoor air flow after heat exchange. The fresh air channel 103a and the exhaust channel 104a are independent of each other, that is, outdoor air flow of the fresh air channel 103a does not enter the exhaust channel 104a, indoor air flow in the exhaust channel 104a does not enter the fresh air channel 103a, and no air flows between the fresh air channel 103a and the exhaust channel 104 a.

In this embodiment, the partition plate 81 separates a part of the space in the heat exchange chamber 10a into the return air channel 101a and the air supply channel 102a, and the partition plate 82 separates a part of the space in the heat exchange chamber 10a into the fresh air channel 103a and the air exhaust channel 104a, which are independent of each other, so that the structure is simple. The length directions of the fresh air channel 103a, the exhaust air channel 104a, the return air channel 101a, the air supply channel 102a and the heat exchange core 2 can all be along the first direction, so that the sizes of the air channel and the heat exchange core 2 can be larger.

In one embodiment, referring to fig. 2, 3, 7 and 8, the return air duct 101a is located at a first side of the air supply duct 102a along the second direction, and the fresh air duct 103a is located at a first side of the air exhaust duct 104a along the second direction.

In this embodiment, the return air channel 101a and the air supply channel 102a are distributed along the second direction, the fresh air channel 103a and the air exhaust channel 104a are distributed along the second direction, the length directions of the fresh air channel 103a, the air exhaust channel 104a, the return air channel 101a, the air supply channel 102a and the heat exchange core 2 may all be along the first direction, the sum of the dimensions of the fresh air channel 103a and the air exhaust channel 104a in the second direction may be substantially equal to the dimension of the fan chamber 10b in the second direction, the sum of the dimensions of the return air channel 101a and the air supply channel 102a in the second direction may be substantially equal to the dimension of the fan chamber 10b in the second direction, and the volumes of the return air channel 101a, the air supply channel 102a, the fresh air channel 103a, the air exhaust channel 104a and the fan chamber 10b may be relatively large without increasing the overall dimension of the housing 1 or the overall dimension of the housing 1 may be relatively small, and the resistance on the airflow path may be relatively small.

In an embodiment, referring to fig. 2, 3, 7 and 8, a first side wall 12 of the housing 1 along a third direction is formed with a return air inlet 1a and an air outlet 1b, a second side wall 13 of the housing 1 along the third direction is formed with a fresh air inlet 1c and an air outlet 1d, the return air inlet 1a is communicated with the return air channel 101a, the fresh air inlet 1c is communicated with the fresh air channel 103a, the air outlet 1b is communicated with the air supply chamber 101b, and the air outlet 1d is communicated with the air outlet chamber 102 b. The air blowing passage 102a communicates with the air blowing chamber 101b near the outlet of the air blowing chamber 101b in the first direction. The exhaust passage 104a communicates with the exhaust chamber 102b near the outlet of the exhaust chamber 102b in the first direction.

The air return opening 1a is communicated with the outside, and the air return opening 1a is used for introducing indoor air flow into the shell 1.

The air outlet 1d is communicated with the outside, and the air outlet 1d is used for leading indoor air flow in the shell 1 out of the shell 1.

The fresh air port 1c is communicated with the outside, and the fresh air port 1c is used for introducing outdoor air flow into the shell 1.

The air supply port 1b is communicated with the outside, and the air supply port 1b is used for leading out outdoor air flow in the shell 1 out of the shell 1.

The air return port 1a and the fresh air port 1c are positioned at two sides of the heat exchange core 2 along the third direction, and the air supply port 1b and the air exhaust port 1d are positioned at two sides of the fan cavity 10b along the third direction.

In this embodiment, the air return opening 1a and the fresh air opening 1c are located at two sides of the heat exchange core 2 along the third direction, the air supply opening 1b and the air exhaust opening 1d are located at two sides of the fan cavity 10b along the third direction, and in the first aspect, the air return opening 1a, the air supply opening 1b, the fresh air opening 1c and the air exhaust opening 1d are convenient to be externally connected with air guide pipes, so that interference between the air guide pipes and a ceiling plate is avoided, and the problem that the size is oversized due to the fact that more than two side walls of the shell 1 respectively form the air openings is also avoided. In the second aspect, the indoor air flow enters the return air channel 101a along the third direction through the return air inlet 1a, the partition plate 81 plays a role in guiding the indoor air flow from the return air inlet 1a, and the indoor air flow can enter the return air channel 101a without turning at a large angle, such as 90 degrees, so that the resistance in the flowing process of the indoor air flow is reduced, and the noise is reduced. The outdoor air flow enters the fresh air channel 103a along the third direction through the fresh air port 1c, the isolation plate 82 plays a role in guiding, and the outdoor air flow from the fresh air port 1c can enter the fresh air channel 103a without turning at a large angle, such as 90 degrees, so that the resistance in the flowing process of the outdoor air flow is reduced, and the noise is reduced. In this way, the indoor air flow and the outdoor air flow smoothly flow in the casing 1, and the vortex flow can be reduced.

In some embodiments, referring to fig. 1 and 2, a take-over flange 10 is disposed outside at least one of the air return opening 1a, the air supply opening 1b, the fresh air opening 1c, and the air outlet 1 d. The connecting pipe flange 10 is used for externally connecting an air guide pipe.

In one embodiment, referring to fig. 2, 7 and 8, the partition 8 includes a partition plate 83, a surface of the partition plate 83 is a part of a surface of the air supply chamber 101b, one end of the partition plate 83 in the second direction is connected to the partition plate 81, and a part of the partition plate 83 protrudes toward a direction close to the partition plate 81.

In this embodiment, the outdoor air flow is concentrated into the air supply chamber 101b and is sent out to the indoor environment, the air volume of the air supply chamber 101b reaches the maximum, the partition plate 83 is located at the junction of the air supply channel 102a and the air supply chamber 101b, and the partition plate 83 is partially protruded towards the direction close to the partition plate 81, so that the volume of the air supply chamber 101b can be enlarged, the space of the air supply chamber 101b is enlarged, the air speed in the air supply chamber 101b is reduced, the local vortex and air flow stagnation area can be reduced, the air turbulence is improved, and the noise reduction effect is achieved.

In one embodiment, referring to fig. 2, 7 and 8, the partition 8 includes a diffuser plate 84, a surface of the diffuser plate 84 is a part of a surface of the exhaust chamber 102b, one end of the diffuser plate 84 along the second direction is connected to the partition 82, and the other end of the diffuser plate 84 along the second direction extends obliquely in a direction away from the partition 82.

In this embodiment, the surface of the air diffuser 84 constituting the exhaust chamber 102b may be an inclined plane. The air flow from the air exhaust passage 104a can smoothly flow along the inclined plane of the air diffuser plate 84 toward the first side in the second direction, reducing dead space of the air flow and reducing vortex. The indoor air flow is concentrated into the exhaust chamber 102b and is sent out to the outdoor environment, the air volume of the exhaust chamber 102b reaches the maximum, and the air expansion plate 84 can enlarge the volume of the exhaust chamber 102b, so that the space of the exhaust chamber 102b is enlarged, the air speed in the exhaust chamber 102b is reduced, and the effect of reducing noise is achieved.

One end of the partition plate 81 is connected to the heat exchange core 2, and the other end of the partition plate 81 may be connected to the casing 1, for example, to the return air inlet 1 a. That is, the partition plate 81 may be connected to the surrounding portion of the return air port 1 a. For example, the partition plate 81 may be connected to the first side wall 12. For another example, the partition plate 81 may connect the connection of the first sidewall 12 and the chassis 11. For another example, the partition plate 81 may connect the chassis 11 near the first side wall 12.

One end of the partition plate 82 is connected to the heat exchange core 2, the other end of the partition plate 82 may be connected to the casing 1, and the position where the partition plate 82 is connected to the casing 1 is not limited, and the partition plate 82 may be connected to the fresh air port 1c, that is, the partition plate 82 may be connected to the surrounding portion of the fresh air port 1c, for example. In some embodiments, the partition 82 may be connected to a sidewall where the fresh air port 1c is located, for example, the second sidewall 13. In some embodiments, the spacer 82 may connect the junction of the second sidewall 13 and the chassis 11. In some embodiments, the spacer 82 may connect the chassis 11 proximate to the second sidewall 13.

The partition 8 can be of an integrated structure, so that the assembly steps of the partition 8 can be saved, the integrated partition 8 limits the space in the shell 1 to be the heat exchange cavity 10a and the fan cavity 10b, that is, one partition 8 can limit the fan cavity 10b and the heat exchange cavity 10a, the problems of wrong assembly, neglected assembly and the like of a plurality of plates can be avoided, and the assembly efficiency is improved.

The material of the separator 8 includes, but is not limited to, plastic, and the like. In some embodiments, the separator 8 may be of unitary injection molded construction. The partition 8 has lighter weight, and can reduce fasteners among the partition plate 81, the partition plate 82, the partition plate 83, the air expansion plate 84 and the supporting body 31, thereby greatly improving the assembly efficiency, reducing the weight and the cost.

In some embodiments, the partition 8 may further include a connection plate and a sealing plate spaced apart in the first direction, the connection plate connecting the partition plate 83 and the air diffuser plate 84, and the sealing plate connecting the partition plate 81 and the partition plate 82.

In an embodiment, referring to fig. 3 and 5, the connection between the fresh air inlet surface 2b and the air outlet surface 2d is a second corner 202, and one end of the partition board 82 may be connected to the second corner 202. For example, referring to fig. 2, 3 and 5, at least one stop 9 is connected to the partition 82 and can abut against the fresh air intake face 2b forming the second corner 202. The stopper 9 can prevent the heat exchange core 2 from coming out of the housing 1 from the side of the second direction away from the support base 3.

In an embodiment, referring to fig. 3 and 5, the connection between the return air inlet surface 2a and the supply air outlet surface 2c is a third corner 203, and one end of the partition 81 may be connected to the third corner 203. For example, referring to fig. 2, 3 and 5, at least one stop 9 is connected to the partition 81 and can abut against the return air intake surface 2a constituting the third corner 203. The stopper 9 can prevent the heat exchange core 2 from coming out of the housing 1 from the side of the second direction away from the support base 3.

In an embodiment, referring to fig. 1, 3 and 5, the connection between the return air inlet surface 2a and the fresh air inlet surface 2b is a fourth corner 204, and the fourth corner 204 may abut against the cover 14 on the first side of the housing 1 along the second direction.

In an embodiment, referring to fig. 2 to 8, the heat exchange core 2 extends along a first direction, the air supply chamber 101b and the air exhaust chamber 102b are located on the same side of the heat exchange core 2 along the first direction, the first side wall 12 of the housing 1 along the third direction forms the air return port 1a and the air supply port 1b, the second side wall 13 of the housing 1 along the third direction forms the air inlet 1c and the air exhaust port 1d, the air return channel 101a is located on a first side of the air supply channel 102a along the second direction, the air inlet channel 103a is located on a first side of the air exhaust channel 104a along the second direction, the air supply chamber 101b is located on a first side of the air supply channel 102a, and the air exhaust chamber 102b is located on a first side of the air exhaust channel 104 a.

Both the return air duct 101a and the supply air duct 102a are located on the same side of the heat exchange core 2 in the third direction. The fresh air channel 103a and the exhaust air channel 104a are both positioned on the same side of the heat exchange core 2 along the third direction. In this way, the sum of the dimensions of both the air supply chamber 101b and the air discharge chamber 102b in the third direction may be close to the sum of the dimensions of the return air duct 101a, the fresh air duct 103a, and the heat exchange core 2 in the third direction. The sum of the dimensions of the air supply chamber 101b and the air exhaust chamber 102b in the second direction may be close to the dimension of the heat exchange core 2 in the second direction, and other air ducts may be designed according to the above principle, so that the space in the housing 1 has little usable area, and the dimensions of the air ducts in the housing 1 are all larger.

For the indoor air flow, the indoor air flow enters the casing 1 from the air return opening 1a, flows along the first air flow path X1 in the casing 1, and then is discharged to the outside from the air outlet 1d, that is, the first air flow path X1 is a return air path along which the indoor air flow flows (refer to fig. 2 and 3). Specifically, indoor air flow from the air return port 1a flows in a curve manner towards a first side in a second direction after entering the air return channel 101a, enters the heat exchange core 2 through the air return inlet surface 2a and flows towards the second side, indoor air flow after heat exchange enters the air exhaust channel 104a through the air exhaust outlet surface 2d, finally enters the air exhaust chamber 102b and is discharged through the air exhaust port 1d, the indoor air flow flows in a linear manner in the flowing process, almost no air flow dead angle exists, the air path is smooth, and the wind resistance is small.

For the outdoor air flow, the outdoor air flow enters the casing 1 from the fresh air port 1c and flows along the second air flow path X2 in the casing 1, and then is discharged from the air supply port 1b into the room, that is, the second air flow path X is a fresh air path through which the outdoor air flow flows (refer to fig. 2 and 3). The outdoor air flow from the fresh air port 1c flows in a curve manner towards the first side in the second direction after entering the fresh air channel 103a, enters the heat exchange core 2 through the fresh air inlet surface 2b and flows towards the second side, the outdoor air flow after heat exchange enters the air supply channel 102a through the air supply outlet surface 2c, finally enters the air supply chamber 101b and is discharged through the air supply port 1b, the outdoor air flow flows in a linear manner in the flowing process, almost no air flow dead angle exists, the air path is smooth, and the wind resistance is small.

In an embodiment, referring to fig. 3, 7 and 8, the partition 8 includes two frames 85, the frames 85 are formed with ventilation openings 85a, the two frames 85 are connected to two opposite sides of the support body 31 along the third direction, and the heat exchange core 2 abuts against the two frames 85.

The vent 85a is for airflow. For example, one of the vents 85a may be in communication with the supply air channel 102a, and the other vent 85a may be in communication with the exhaust air channel 104a. The air supply and outlet surface 2c faces the air vent 85a of one of the frames 85, and the air exhaust and outlet surface 2d faces the air vent 85a of the other frame 85. Outdoor air flow from the air supply/outlet surface 2c enters the air supply duct 102a through the air port 85a. Indoor air flow from the exhaust air outlet face 2d enters the exhaust passage 104a through the air vent 85a.

In this embodiment, during the process of installing the heat exchange core 2, the heat exchange core 2 slides into the open slot 3a from the first side to the second side along the frame 85 in the second direction, so that the assembling difficulty is effectively reduced. The frame 85 may provide support for the heat exchange core 2 so that the heat exchange core 2 may stably maintain an inclined side standing on the chassis 11.

The shape of the frame 85 is not limited, and the area surrounded by the frame 85 may be the vent 85a. Illustratively, one of the rims 85 is abutted against the air-supplying and air-discharging surface 2c of the heat exchange core 2, the outer contour shape of the air-supplying and air-discharging surface 2c may be substantially quadrangular, the outer contour shape of the rim 85 may be substantially quadrangular, and the rim 85 may be substantially abutted against the periphery of the air-supplying and air-discharging surface 2 c. The other frame 85 is abutted with the air exhaust and outlet surface 2d of the heat exchange core 2, the outer contour shape of the air exhaust and outlet surface 2d can be approximately quadrilateral, the outer contour shape of the frame 85 can be approximately quadrilateral, and the frame 85 can be approximately abutted with the periphery of the air exhaust and outlet surface 2 d.

In an embodiment, referring to fig. 2, 3, 7 and 8, the fresh air device includes a stopper 9, one end of the frame 85 along the second direction is connected to the supporting seat 3, for example, the fixing piece 32, the stopper 9 is disposed at one end of the frame 85 along the second direction away from the supporting seat 3, and the stopper 9 abuts against a portion of the heat exchange core 2 along the second direction away from the supporting seat 3. The stopper 9 can prevent the heat exchange core 2 from coming out of the housing 1 from the first side in the second direction, and the stopper 9, the rim 85 and the support base 3 can restrict the degrees of freedom in the plurality of directions of the heat exchange core 2, so that the heat exchange core 2 can be stably assembled on the partition 8.

For example, referring to fig. 2, 3, 7 and 8, the number of stops 9 may be plural, at least one stop 9 abutting the second corner 202 of the heat exchange core 2, at least one stop 9 abutting the third corner 203 of the heat exchange core 2.

The stopper 9 may be detachably connected with the partition 8. Such as a screw connection or a bolt connection. For example, the stopper 9 is detachably connected to the partition plate 81, and the stopper 9 is detachably connected to the partition plate 82.

The shape of the stopper 9 is not limited, and the stopper 9 may be substantially sheet-shaped, for example.

In the description of the present application, a description of the terms "one embodiment," "some embodiments," or "exemplary" and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in the present application and the features of the various embodiments or examples may be combined by those skilled in the art without contradiction.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made by those skilled in the art. 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, comprising:

A housing;

A heat exchange core located within the housing;

2. The fresh air appliance according to claim 1, wherein the support base comprises a support body and a fixing piece, the fixing piece abuts against the chassis, the support body is connected with the fixing piece, and the support body forms the open slot.

3. The fresh air device according to claim 1, wherein the support base comprises a support body including a first inclined plate, a second inclined plate and a support plate, a part 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 in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

4. The fresh air equipment according to claim 3, wherein an included angle between the first inclined plate and the chassis is 90-160 degrees, and/or,

5. The fresh air appliance of claim 1, wherein the heat exchange core includes a plurality of heat exchange cells arranged in sequence along the first direction.

6. The fresh air appliance of claim 1, wherein the heat exchange core includes first and second intersecting sides, the junction of the first and second sides being a first corner, the first corner being received in the open slot.

7. The fresh air appliance of claim 6, wherein an angle between the second side and the inner surface of the chassis is gamma, wherein 15 degrees less than or equal to gamma less than or equal to 45 degrees.

8. The fresh air device of claim 1, wherein the fresh air device comprises a guide frame connected to the support base, the guide frame abutting against one side of the heat exchange core along a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

9. The fresh air appliance of claim 8, wherein the guide frame includes a guide tab disposed perpendicular to the first direction, the guide tab abutting a side of the heat exchange core in a third direction.

10. The fresh air device according to claim 9, wherein the guide piece is formed with a flow hole.

11. The fresh air device of claim 9, wherein the guide frame comprises lugs, a connecting piece and a plurality of guide pieces, the guide pieces are arranged at intervals along a first direction, the connecting piece is connected with all the guide pieces, two lugs are arranged at intervals along the first direction, two lugs are respectively connected with one guide piece, and the lugs are connected with the supporting seat.

12. The fresh air device of claim 1, wherein a heat exchange cavity and a fan cavity are formed in the housing, the heat exchange core and the support seat are both located in the heat exchange cavity, the fresh air device comprises a partition plate, the partition plate divides the fan cavity into an air supply chamber and an air exhaust chamber which are arranged along a third direction, the partition plate comprises a bending portion, the bending portion is bent towards the air supply chamber, and the first direction, the second direction and the third direction are mutually perpendicular.

13. The fresh air appliance of claim 12, wherein the fresh air appliance comprises:

The fresh air fan is positioned in the air supply chamber;

14. The fresh air device of claim 1, wherein the fresh air device comprises a partition positioned in the housing, the partition comprises a partition plate and a partition plate, the heat exchange core extends along a first direction, the circumferential surface of the heat exchange core surrounding the first direction comprises a return air inlet surface, a fresh air inlet surface, a second side surface and a first side surface which are sequentially connected, the connection of the fresh air inlet surface and the second side surface is a second corner, the connection of the return air inlet surface and the first side surface is a third corner, the partition plate and the partition plate are respectively positioned on two sides of the heat exchange core along the third direction, the second corner is connected with the partition plate, and the third corner is connected with the partition plate, wherein the first direction, the second direction and the third direction are mutually perpendicular.