Fresh air equipment

Abstract

The utility model relates to the technical field of air conditioning, and provides fresh air equipment. The fresh air equipment comprises a shell, a heat exchange core and two draught fans. A heat exchange cavity and a fan cavity which are spread along a first plane are formed in the shell; the heat exchange core is located in the heat exchange cavity. The two draught fans are both located in the draught fan cavity, the axes of the two draught fans extend in the first direction, and the first direction is parallel to the first plane. According to the fresh air equipment, the axes of the two draught fans extend in the first direction, under the condition that the radial size of the draught fans is large, the size of the whole machine along the first plane cannot be excessively increased through the draught fans, the size occupied by the draught fans is reduced, the structural layout is more reasonable, the size of the whole machine is smaller, and the requirement for miniaturization is met.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a fresh air device. Background Art

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

[0003] Fresh air equipment is used to replace indoor air, thereby improving the indoor environment. The fresh air equipment is provided with a heat exchange core and a fan. The heat exchange core is used for heat exchange between indoor airflow and outdoor airflow, and the fan is used for driving indoor airflow and outdoor airflow. In the related art, the fresh air equipment is large in size and requires a large installation space, which is difficult to meet the trend of miniaturization. Utility Model Content

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

[0005] To achieve the above-mentioned purpose, the embodiment of the present application provides a fresh air device, which includes a housing, a heat exchange core and two fans. The housing is formed with a heat exchange cavity and a fan cavity extending along a first plane; the heat exchange core is located in the heat exchange cavity; the two fans are both located in the fan cavity, and the axes of the two fans extend along a first direction, and the first direction is parallel to the first plane.

[0006] In the fresh air equipment provided in the embodiment of the present application, the axes of the two fans extend along the first direction. When the radial dimension of the fan is large, the fan will not excessively increase the dimension of the whole machine along the first plane, thereby reducing the volume occupied by the fan. The structural layout is more reasonable, the whole machine is smaller, and miniaturization requirements are met.

[0007] In some embodiments, the outer shell includes a cover body and a shell, the shell has a downward mounting opening, the cover body closes the mounting opening to jointly define the heat exchange chamber and the fan chamber, and the two fans are both arranged on the side wall of the shell along the first direction, wherein the up and down directions are perpendicular to the first plane.

[0008] In some embodiments, the upward side wall of the shell is a chassis, and the shell further includes a convex bump fixed to the downward side of the chassis; the fan is formed with a fixed foot, and the fixed foot is connected to the convex bump.

[0009] In some embodiments, the heat exchange core extends along a first direction, the fan cavity is located on one side of the heat exchange cavity along the first direction, and the two fans are arranged along a second direction, wherein the second direction is parallel to the first plane, and the first direction and the second direction are perpendicular to each other.

[0010] In some embodiments, the heat exchange chamber forms two air flow channels arranged along the second direction, each fan corresponds to one air flow channel on one side along the first direction, and the fan includes a casing, and an air flow inlet is formed on at least one side of the casing along the first direction.

[0011] In some embodiments, the two fans are respectively an exhaust fan and a fresh air fan, the air flow channel corresponding to the exhaust fan is an exhaust channel, and the air flow channel corresponding to the fresh air fan is an air supply channel.

[0012] In some embodiments, the fresh air device includes a mounting plate, the mounting plate includes a connecting portion and a plate body, the fan is arranged on a first side of the plate body along a first direction, the connecting portion is arranged on a second side of the plate body along the first direction, and the connecting portion is connected to the side wall of the outer casing along the first direction.

[0013] In some embodiments, the fan includes a casing, the plate body is formed with ventilation holes penetrating the plate body on both sides along a first direction, the casing is arranged on a first side of the plate body, the casing is formed with air flow inlets on both sides along the first direction, and the ventilation holes are connected to the air flow inlets.

[0014] In some embodiments, the fresh air device includes a drive motor, and the drive motor is disposed on a first side of the plate body along a first direction.

[0015] In some embodiments, the fresh air device includes a conductive wire connected to the drive motor, the plate body is formed with a wire accommodating groove recessed in a direction away from the fan, and at least a portion of the conductive wire is located in the wire accommodating groove.

[0016] In some embodiments, the fan includes a casing, and a portion of the conductive wire extends along an outer surface of the casing along a first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the fresh air equipment in some embodiments of the present application;

[0018] Figure 2 for Figure 1 A cross-sectional diagram of the fresh air equipment;

[0019] Figure 3 A schematic diagram of a partial structure of a fresh air device in some embodiments of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the mounting plate in some embodiments of the present application.

[0021] Description of Reference Numerals

[0022] 200. Fresh air equipment;

[0023] 210, housing; 210b, fan chamber; 210b1, air supply chamber; 210b2, exhaust chamber; 220, heat exchange core; 211, first side wall; 211a, return air outlet; 211b, air supply outlet; 212, second side wall; 212a, fresh air outlet; 212b, exhaust outlet; 213, chassis; 214, convex hull;

[0024] 100, fan; 10, mounting plate; 10b, wire trough; 11, connection portion; 12, plate body; 12a, vent; 20, housing; 20a, air flow inlet; 110, fixing foot; 30, wind wheel; 40, driving motor. DETAILED DESCRIPTION

[0025] 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.

[0026] 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 orientations or positional relationships such as "up", "down", "first side", "second side", "first plane", "first direction", "second direction", and "third direction" are based on the orientations or positional relationships 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.

[0027] 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.

[0028] The present application embodiment provides a fresh air device 200, see Figure 1-Figure 3, comprising a housing, a heat exchange core 220 and two fans 100. The housing is formed with a heat exchange cavity and a fan cavity 210b extending along a first plane; the heat exchange core 220 is located in the heat exchange cavity; the two fans 100 are both located in the fan cavity 210b, and the axes of the two fans 100 extend along a first direction, which is parallel to the first plane.

[0029] Indoor airflow is usually called return air, and outdoor airflow is usually called fresh air. Indoor airflow and outdoor airflow exchange heat in the heat exchange core 220 to achieve heat recovery and adjust the temperature and / or humidity of the outdoor airflow entering the room. The fresh air device 200 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.

[0030] One of the two fans 100 is used to drive indoor airflow, and the other of the two fans 100 is used to drive outdoor airflow.

[0031] The larger the radial dimension of the fan 100 is, the larger the air volume of the fan 100 is; conversely, the smaller the radial dimension of the fan 100 is, the smaller the air volume of the fan 100 is. If the axis of the fan 100 is perpendicular to the first plane, that is, the fan 100 is arranged in the fan cavity 210b in a manner similar to lying, increasing the radial dimension of the fan 100 will cause the size of the entire machine to be too large. If the radial dimension of the fan 100 is reduced in order to reduce the size of the entire machine, the air volume of the fan 100 will be too small. In other words, if the fan 100 is arranged in the fan cavity 210b in a manner similar to lying, when the radial dimension of the fan 100 is large, the size of the fan cavity 210b will be excessively increased, which is not conducive to product miniaturization.

[0032] In the fresh air equipment 200 provided in the embodiment of the present application, the axes of the two fans 100 both extend along the first direction. When the fan 100 has a larger radial dimension, the fan 100 will not excessively increase the dimension of the whole machine along the first plane, thereby reducing the volume occupied by the fan 100. The structural layout is more reasonable, the whole machine is smaller, and miniaturization requirements are met.

[0033] The fresh air device 200 is an effective air purification device that can circulate indoor air. On the one hand, it discharges the indoor polluted air to the outside, and on the other hand, it inputs the outdoor fresh air into the room to adjust the indoor air quality.

[0034] The housing is used to provide installation space for the heat exchange core 220, the fan 100 and other structures. The shape of part of the housing is similar to a rectangular parallelepiped. For ease of understanding and explanation, as shown in FIG. Figure 1-Figure 3As shown, it can be understood that in the figure, Z represents the thickness direction, X represents the first direction, and Y represents the second direction. It should be noted that the directions in the embodiments of the present application are only for illustration and cannot be understood as improper limitations on the technical solutions of the present application.

[0035] The fan 100 is used to realize the forced flow of air, to suck in outdoor fresh air and provide the sucked outdoor fresh air to the indoor space, or to suck in indoor air and exhaust the sucked indoor air to the outdoors.

[0036] The heat exchange core 220 is located in the heat exchange cavity, and the two fans 100 are both located in the fan cavity 210b. The fan cavity 210b and the heat exchange core 220 are roughly T-shaped, so that the air flow in the shell is smoother, achieving the effect of large air volume, low energy consumption and quietness.

[0037] In the fresh air device 200 provided in the embodiment of the present application, the axes of the two fans 100 are arranged along the first direction, which can reduce the size of the fresh air device 200 along the first direction, and further reduce the planar size of the fresh air device 200 along the first plane. Compared with the fan 100 axis arranged along the up-down direction, the planar size of the fresh air device 200 occupied by the fan 100 can be reduced by about 48%, and the fan 100 can face the air outlet directly, simplifying the airflow path, improving the air intake efficiency, and reducing the residual pressure in the fresh air device 200.

[0038] The fresh air device 200 provided in the embodiment of the present application can be installed on the ceiling or the ceiling panel. The ceiling panel can separate the indoor space into the ceiling space and the living space. Users carry out their daily lives in the living space, and the ceiling space is not only used to beautify the interior decoration, but also to install other equipment. In some embodiments, the fresh air device 200 is arranged in the ceiling space. In this way, the fresh air device 200 is hidden in the ceiling space, avoiding the user from directly observing the entire fresh air device 200, 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.

[0039] When the fresh air device 200 provided in the embodiment of the present application is mounted on a ceiling or a ceiling plate, taking the case that the shell is roughly hexahedral as an example, the up-down direction may be the thickness direction of the shell, one of the first direction and the second direction may be the width direction of the shell, and the other of the first direction and the second direction may be the length direction of the shell. Taking the case that the fresh air device 200 is mounted in the ceiling space as an example, the size of the ceiling space along the up-down direction is much smaller than the size of the ceiling space along the first direction and the second direction, and the thickness direction of the shell is along the up-down direction, which can avoid the problem that the fresh air device 200 is difficult to be assembled into the ceiling space.

[0040] For some examples, see Figure 1The housing includes a cover and a shell 210, the shell 210 has a downward mounting opening, the cover closes the mounting opening to define a heat exchange chamber and a fan chamber 210b, and the two fans 100 are both arranged on the side wall of the shell 210 along a first direction, wherein the up-down direction is perpendicular to the first plane. Figure 1 The installation opening of the housing 210 is used to install the internal structure. The axes of the two fans 100 are arranged along the first direction and are both arranged on the side wall of the housing 210 along the first side of the first direction. The internal space of the housing 210 occupied by the fans 100 can be further reduced, which is convenient for simplifying the installation structure. It can be understood that the first side of the first direction refers to the direction in which the fan is away from the heat exchange chamber, and the second side of the first direction is opposite to the first side of the first direction.

[0041] For some examples, see Figure 2 and Figure 3 The upward side wall of the housing 210 is a chassis 213, and the housing 210 further includes a convex bump 214, which is fixed to the downward side of the chassis 213; the fan 100 is formed with a fixed foot 110, and the fixed foot 110 is connected to the convex bump 214. The convex bump 214 facilitates the installation and fixation of the housing 210.

[0042] For example, the convex bump 214 may be formed by stamping the chassis 213 , or the convex bump 214 and the chassis 213 may be manufactured separately, and then the convex bump 214 may be assembled to the chassis 213 .

[0043] The connection method between the fixing foot 110 and the convex bump 214 is not limited, and the fixing foot 110 and the convex bump 214 can be connected by fasteners. The fasteners include but are not limited to screws or bolts.

[0044] Exemplarily, the fan 100 includes a casing 20, a first fixing foot is provided on the upper side of the casing 20, and a second fixing foot is provided on the lower side of the casing 20, both of which can be fixedly connected to the protrusion 214 on the chassis 213, which can improve the fixing effect of the casing 20 and make the casing 20 suitable for different installation directions.

[0045] In some embodiments, the heat exchange core 220 extends along a first direction, the fan chamber 210b is located on one side of the heat exchange chamber along the first direction, and the two fans 100 are arranged along a second direction, wherein the second direction is parallel to the first plane, and the first direction and the second direction are perpendicular to each other. Figure 1 The heat exchange core 220 extends along the first direction, and the two fans 100 are on the same horizontal plane.

[0046] The extension of the heat exchange core 220 along the first direction means that the airflow enters or flows out of the heat exchange core 220 from the circumference surrounding the first direction. For example, the extension of the heat exchange core 220 along the first direction may be that a plurality of heat exchange medium sheets of the heat exchange core 220 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 220 from the circumference surrounding the first direction of the heat exchange core 220. The heat exchange medium sheets can be used for heat exchange but not for circulating airflow.

[0047] Indoor air flow is usually called return air, and outdoor air flow is usually called fresh air.

[0048] In this embodiment, if the two fans are located on different sides of the heat exchange core along the first direction, the two fans will occupy the space in the housing along the first direction respectively, causing the size of the housing along the first direction to increase; while the two fans are located on the same side of the heat exchange core along the first direction, the two fans will not increase the size of the housing along the first direction respectively, and the fresh air fan, exhaust fan and heat exchange core are compact in structure. The two fans are arranged along the second direction, making full use of the space of the housing along the second direction, and comprehensively considering the space of the housing along the first direction and the second direction, thereby reducing the overall size of the fresh air device and meeting the miniaturization requirements.

[0049] In this embodiment, if the two fans 100 are located on different sides of the heat exchange core 220 along the first direction, the two fans 100 respectively occupy the space in the housing along the first direction, causing the size of the housing along the first direction to increase; while the two fans 100 are located on the same side of the heat exchange core 220 along the first direction, the two fans 100 will not increase the size of the housing along the first direction respectively, and the two fans 100 and the heat exchange core 220 have a compact structure. The two fans 100 are arranged along the second direction, making full use of the space of the housing along the second direction, and comprehensively considering the space of the housing along the first direction and the second direction, thereby reducing the overall size of the fresh air device 200 and meeting the miniaturization requirements.

[0050] For some examples, see Figure 1The first side wall 211 of the shell along the second direction forms a return air port 211a and a supply air port 211b, and the second side wall 212 of the shell along the second direction forms a fresh air port 212a and an exhaust air port 212b. The return air port 211a is used to introduce indoor airflow into the shell. The fresh air port 212a is used to introduce outdoor airflow into the shell. The fresh air device 200 includes a partition, and the partition includes a partition plate, which is connected to the heat exchange core 220 and the return air port 211a to separate the heat exchange cavity into a return air channel and a supply air channel, and the return air channel is located on the first side of the supply air channel along the third direction, and the return air inlet surface is a partial surface of the return air channel. Among them, the first direction, the second direction and the third direction are perpendicular to each other. The partition also includes an isolation plate, which is connected to the heat exchange core 220 and the fresh air port 212a to separate the heat exchange cavity into a fresh air channel and an exhaust air channel, and the fresh air channel is located on the first side of the exhaust air channel along the third direction, and the fresh air inlet surface is a partial surface of the fresh air channel. The return air channel is located at the first side of the supply air channel along the third direction, the fresh air channel is located at the first side of the exhaust air channel along the third direction, the supply air chamber 210b1 is located at one side of the supply air channel along the first direction, and the exhaust air chamber 210b2 is located at one side of the exhaust air channel along the first direction.

[0051] For some examples, see Figure 3 The heat exchange cavity is formed with two air flow channels arranged along the second direction, and each fan 100 has one air flow channel corresponding to one side along the first direction. The fan 100 includes a housing 20, and an air flow inlet 20a is formed on at least one side of the housing 20 along the first direction. Figure 1 and Figure 3 , the first side of the fan 100 along the first direction corresponds to the airflow channel. The first side of the housing 20 along the first direction has an airflow inlet 20a. After the airflow enters the airflow channel, it enters the fan 100 through the airflow inlet 20a. Exemplarily, the first side and the second side of the fan 100 along the first direction are both provided with an airflow inlet 20a.

[0052] Exemplarily, the first airflow path is the path that the airflow passes through after entering the housing from the return air port 211a, and the second airflow path is the path that the airflow passes through after entering the housing from the fresh air port 212a.

[0053] Regarding indoor airflow: the indoor airflow enters the housing from the return air port 211a, flows along the first airflow path in the housing, and then is discharged to the outside from the exhaust port 212b, that is, the first airflow path is the return air path of the indoor airflow. Specifically: the indoor airflow from the return air port 211a enters the return air channel and flows in a curve toward the first side of the third direction, and enters the heat exchange core 220 through the return air inlet surface and flows to the second side. The indoor airflow after heat exchange enters the exhaust air channel through the exhaust air outlet surface, and finally enters the exhaust chamber 210b2 and is discharged through the exhaust port 212b. The indoor airflow flows linearly during the flow process, with almost no airflow dead angle, smooth air path, and small wind resistance.

[0054] Regarding outdoor airflow: the outdoor airflow enters the housing from the fresh air port 212a, flows along the second airflow path in the housing, and then is discharged to the room from the air supply port 211b, that is, the second airflow path is the fresh air path for the outdoor airflow. After the outdoor airflow from the fresh air port 212a enters the fresh air channel, it flows in a curve toward the first side of the third direction, enters the heat exchange core 220 through the fresh air inlet surface, and flows to the second side. After heat exchange, the outdoor airflow enters the air supply channel through the air supply outlet surface, and finally enters the air supply chamber 210b1 and is discharged through the air supply port 211b. The outdoor airflow flows linearly during the flow process, with almost no airflow dead angle, smooth air path, and small wind resistance.

[0055] For some examples, see Figure 1 The two fans 100 are respectively an exhaust fan 100 and a fresh air fan 100, the air flow channel corresponding to the exhaust fan 100 is an exhaust channel, and the air flow channel corresponding to the fresh air fan 100 is an air supply channel. The fan chamber 210b may include an air supply chamber 210b1 and an exhaust chamber 210b2 that are independent of each other, the exhaust fan 100 is located in the exhaust chamber 210b2, the fresh air fan 100 is located in the air supply chamber 210b1, and the air supply chamber 210b1 is connected to the outlet of the air supply channel along the first direction. The exhaust chamber 210b2 is connected to the outlet of the exhaust channel along the first direction.

[0056] The fresh air fan 100 drives the fresh air to flow, that is, drives the outdoor air flow, and the exhaust air fan 100 drives the return air to flow, that is, drives the indoor air flow.

[0057] For example, a first filter is provided on one side of the heat exchange core 220 adjacent to the fresh air outlet 212a, and the first filter performs primary filtration on the indoor airflow. A second filter and a third filter are provided on one side of the heat exchange core 220 adjacent to the return air outlet 211a, and the second filter performs primary filtration on the outdoor airflow, and the third filter performs high-efficiency filtration on the outdoor fresh air.

[0058] Primary filtration and high efficiency filtration can improve the cleanliness of airflow. The functions of primary filtration and high efficiency filtration include but are not limited to removing dust, microorganisms and / or harmful gases in the air.

[0059] High efficiency filtration can achieve the effects of absorbing PM2.5 and / or removing odors. The third filter includes but is not limited to HEPA (High Efficiency Particulate Air Filter) and / or HAF (High Air Flow, ultra-large flow electrostatic filter).

[0060] For some examples, see Figure 4 The fresh air equipment 200 includes a mounting plate 10, the mounting plate 10 includes a connecting portion 11 and a plate body 12, the fan 100 is arranged on a first side of the plate body 12 along a first direction, the connecting portion 11 is arranged on a second side of the plate body 12 along the first direction, and the connecting portion 11 is connected to the side wall of the outer shell along the first direction.

[0061] See also Figure 3 and Figure 4 The plate body 12 is used to carry the fan 100, and the airflow on the second side of the plate body 12 can pass through the vent 12a to the airflow inlet 20a. The connecting portion 11 is used to cooperate with the fastener to fix the fan 100 to the product. For example, the connecting portion 11 is used to fix the fan 100 to the fresh air device 200. Exemplarily, the fresh air device 200 includes a housing, and the connecting portion 11 cooperates with the fastener to fix the fan 100 to the housing.

[0062] For some examples, see Figure 3 and Figure 4 The fan 100 includes a casing 20, a plate body 12 having vents 12a extending through the plate body 12 on both sides along a first direction, the casing 20 is disposed on a first side of the plate body 12, and air flow inlets 20a are formed on both sides of the casing 20 along the first direction, and the vents 12a are connected to the air flow inlets 20a.

[0063] The housing 20 plays a role in guiding air. The vents 12a penetrate through two side surfaces of the plate body 12 along the first direction, so that air can flow through the vents 12a.

[0064] For example, see Figure 3 and Figure 4 The fan 100 further includes a wind wheel 30 , which rotates to drive part of the air flow into the casing 20 through the vent 12 a and an air flow inlet 20 a close to the plate body 12 , and part of the air flow can enter the casing 20 through another air flow inlet 20 a away from the plate body 12 .

[0065] In this embodiment, the plate body 12 is provided with a vent 12a, and the vent 12a is connected to the air flow inlet 20a. In this way, the plate body 12 will not block the air flow from the air flow inlet 20a. The air flow can enter the casing 20 from the air flow inlet 20a on both sides of the casing 20 along the first direction, thereby realizing double-sided air intake, which has a better effect than single-sided air intake and can reduce the rotation speed to achieve the effect of noise reduction and vibration reduction.

[0066] In some embodiments, the casing 20 is a volute, and the wind wheel 30 is a centrifugal wind wheel 30 .

[0067] For some examples, see Figure 2 The fresh air device 200 includes a driving motor 40, which is disposed on a first side of the plate body 12 along a first direction. The driving motor 40 is connected to the wind wheel 30 to drive the wind wheel 30 to rotate.

[0068] In this embodiment, the housing 20 and the motor are both mounted on the same mounting plate 10, which can simplify the installation of components and the installation process and improve the assembly accuracy.

[0069] For some examples, see Figure 4 The fresh air device 200 includes a conductive wire connected to the drive motor 40, and the plate body 12 is formed with a wire accommodating groove 10b recessed in a direction away from the fan 100, and at least part of the conductive wire is located in the wire accommodating groove 10b.

[0070] The conductive wire is used to energize the drive motor 40 . The wire groove 10 b eliminates the need for the conductive wire to pass through the plate body 12 . The conductive wire can be guided to the edge of the mounting plate 10 through the wire groove 10 b , thus avoiding the adverse effects of scratching caused by passing the wire through the housing 20 .

[0071] The formation method of the wire groove 10b is not limited. In some embodiments, the surface of the plate body 12 facing the first side is partially missing to form the wire groove 10b. In other words, a local portion of the plate body 12 is thinned to form the wire groove 10b. In other embodiments, a local portion of the plate body 12 protrudes toward the second side to form the wire groove 10b. In this way, the thickness of the wire groove 10b is not reduced, and the structural strength of the plate body 12 is ensured.

[0072] For some examples, see Figure 3 The fan 100 includes a housing 20, and a portion of the conductive wire extends along the outer surface of the housing 20 along a first direction. Exemplarily, the conductive wire is fixed to the surface of the housing 20 by a fixing member, so that the conductive wire is fixed and the adverse effects caused by the disorder of the conductive wire are reduced.

[0073] Exemplarily, the conductive wires are divided into fresh air wires for the fresh air fan 100 and exhaust air wires for the exhaust air fan 100. The fresh air wires and the exhaust air wires pass through the surface of the casing 20 and extend to the wire accommodating groove 10b on the mounting plate 10 to make the conductive wires more regular and reduce the adverse effects caused by the clutter of the conductive wires.

[0074] In the description of the present application, the description with reference to the terms "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.

[0075] 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: The housing is formed with a heat exchange cavity and a fan cavity extending along a first plane; A heat exchange core is located in the heat exchange cavity; The two fans are both located in the fan cavity, and the axes of the two fans extend along a first direction, which is parallel to the first plane.

2. The fresh air device according to claim 1, characterized in that: The outer shell includes a cover body and a shell, the shell has a downward mounting opening, the cover body closes the mounting opening to jointly define the heat exchange chamber and the fan chamber, and the two fans are both arranged on the side wall of the shell along the first direction, wherein the up and down directions are perpendicular to the first plane.

3. The fresh air device according to claim 2, characterized in that: The upward side wall of the shell is a chassis, and the shell also includes a convex bump, which is fixed to the downward side of the chassis; the fan is formed with a fixed foot, and the fixed foot is connected to the convex bump.

4. The fresh air device according to claim 1, characterized in that: The heat exchange core extends along a first direction, the fan cavity is located on one side of the heat exchange cavity along the first direction, and the two fans are arranged along a second direction, wherein the second direction is parallel to the first plane, and the first direction and the second direction are perpendicular to each other.

5. The fresh air device according to claim 4, characterized in that: The heat exchange chamber is formed with two air flow channels arranged along the second direction, and each fan has one air flow channel corresponding to one side along the first direction. The fan includes a casing, and an air flow inlet is formed on at least one side of the casing along the first direction.

6. The fresh air device according to claim 5, characterized in that: The two fans are respectively an exhaust fan and a fresh air fan, the air flow channel corresponding to the exhaust fan is an exhaust channel, and the air flow channel corresponding to the fresh air fan is an air supply channel.

7. The fresh air device according to any one of claims 1 to 6, characterized in that: The fresh air equipment includes a mounting plate, the mounting plate includes a connecting portion and a plate body, the fan is arranged on a first side of the plate body along a first direction, the connecting portion is arranged on a second side of the plate body along the first direction, and the connecting portion is connected to a side wall of the outer shell along the first direction.

8. The fresh air device according to claim 7, characterized in that: The fan includes a casing, the plate body is formed with ventilation holes penetrating the plate body on both sides along a first direction, the casing is arranged on a first side of the plate body, the casing is formed with air flow inlets on both sides along the first direction, and the ventilation holes are connected to the air flow inlets.

9. The fresh air device according to claim 7, characterized in that: The fresh air device includes a drive motor, and the drive motor is arranged on a first side of the plate body along a first direction.

10. The fresh air device according to claim 9, characterized in that: The fresh air device includes a conductive wire connected to the drive motor, and the plate body is formed with a wire accommodating groove recessed in a direction away from the fan, and at least a portion of the conductive wire is located in the wire accommodating groove.

11. The fresh air device according to claim 10, characterized in that: The fan includes a casing, and a portion of the conductive line extends along an outer surface of the casing along a first direction.

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