CN210241894U

CN210241894U - New fan

Info

Publication number: CN210241894U
Application number: CN201921014173.3U
Authority: CN
Inventors: Ruiqiong Zhong; 钟瑞琼
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-03
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a new fan, include: a housing having a fresh air inlet; the heat exchange core is arranged in the shell and is provided with a fresh air duct piece, the fresh air duct piece is communicated with the fresh air inlet and the heat exchange core, the fresh air duct piece is provided with an insertion hole communicated with the fresh air duct, and the insertion hole is arranged close to the heat exchange core; the sensor assembly is inserted in the jack. The utility model discloses technical scheme has the convenient advantage of sensor module dismouting.

Description

New fan

Technical Field

The utility model relates to an air conditioning field, in particular to new fan.

Background

The fresh air machine is a device for introducing outdoor fresh air into a room and adjusting indoor air, and a sensor is required to be arranged on the fresh air machine in order to detect the quality of the air. The existing sensor of the new fan is limited by the installation position, is inconvenient to install and disassemble, and has poor measurement accuracy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a new fan aims at promoting the convenience of sensor dismouting, improves the detection precision of sensor simultaneously.

In order to achieve the above object, the utility model provides a new fan, include:

a housing having a fresh air inlet;

a heat exchange core disposed in the casing

The fresh air duct piece is arranged in the shell and is communicated with the fresh air inlet and the heat exchange core, the fresh air duct piece is provided with a jack communicated with the fresh air duct, and the jack is arranged close to the heat exchange core;

the sensor assembly is inserted in the jack.

Optionally, the housing has an opening, the housing comprising a panel removably covering the opening; the jack is provided with a socket, the socket is arranged on the surface of the fresh air duct piece facing the panel, and the sensor component is inserted into the jack through the socket.

Optionally, the new trend wind channel piece towards the surface of heat exchange core is equipped with the vent, the vent intercommunication the jack, sensor assembly includes:

the surface of the mounting box facing the ventilation opening is provided with a detection hole; and the number of the first and second groups,

the sensor is arranged in the mounting box.

Optionally, the surface of mounting box is equipped with the lug, the lug is located the jack outside, the lug butt fresh air duct spare, be equipped with first screw on the lug, fresh air duct spare towards the surface of panel, be equipped with the second screw of first screw adaptation.

Optionally, the mounting box is snap-fit connected with the sensor.

Optionally, the inner surface of the mounting box has a mounting position, the inspection hole is disposed at the mounting position, the inner surface of the mounting box is convexly provided with a plurality of hooks, the plurality of hooks are disposed around the mounting position, free ends of the hooks have barbs, the sensor is disposed at the mounting position, and the barbs abut against the surface of the sensor away from the inspection hole.

Optionally, an installation convex rib is arranged on the installation position, and the installation convex rib abuts against the surface of the sensor close to the detection hole.

Optionally, a positioning hole is formed in the sensor, a positioning column is arranged on the mounting position, and the positioning column penetrates through the positioning hole.

Optionally, the mounting box comprises:

the sensor box body is internally provided with a sensor;

the box cover is connected with the box body in a buckling mode.

Optionally, a wire hole is formed in the mounting box, and a lead of the sensor extends out of the mounting box through the wire hole.

Optionally, the sensor comprises a PM2.5 sensor and/or a humidity sensor.

The utility model discloses technical scheme is through adopting set up the jack on the new trend wind channel, make sensor assembly can carry out the dismouting through the mode of plug, has the convenient advantage of dismouting, makes things convenient for the staff right sensor assembly overhauls. The sensor assembly is arranged in the shell, so that the shell can protect the sensor and prevent the sensor assembly from being damaged in the process of carrying the fresh air machine. The air current of heat exchange core department will be more stable than the air current of new trend import department, sensor module is close to the heat exchange core sets up for the air current that the sensor detected is more stable, and the testing result that obtains is more stable, more accurate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the fresh air machine of the present invention;

FIG. 2 is a schematic structural view of the fresh air machine of FIG. 1 with a panel removed;

FIG. 3 is a schematic structural view of the fresh air machine of FIG. 1 with the back plate removed;

FIG. 4 is a schematic view of the fan assembly of the fresh air fan of FIG. 1;

FIG. 5 is a top view of the fan assembly of FIG. 4;

FIG. 6 is an exploded view of the fan assembly of FIG. 4;

FIG. 7 is a schematic structural view of the fresh air machine of FIG. 1 with the face plate and the heat exchange core removed;

FIG. 8 is a schematic mechanical view of a support member for the fresh air machine of FIG. 7;

FIG. 9 is a schematic view of the abutting buckle of the supporting member in FIG. 7;

FIG. 10 is a schematic structural view of a mounting base plate, a circuit board and a circuit mounting plate of the fresh air machine of FIG. 1;

FIG. 11 is a right side view of the mounting plate, circuit board and circuit mounting board of FIG. 10;

FIG. 12 is a schematic view of the housing of the fresh air machine of FIG. 1;

FIG. 13 is a rear view of the fresh air duct member of the fresh air machine of FIG. 2;

FIG. 14 is an isometric view of the fresh air duct member of FIG. 13;

FIG. 15 is a bottom view of the fresh air duct member of the fresh air machine of FIG. 2;

FIG. 16 is a schematic view of a sensor assembly of the fresh air machine of FIG. 2;

FIG. 17 is a schematic structural view of a sensor cartridge of the sensor assembly of FIG. 16;

FIG. 18 is a schematic view of a sensor cartridge and sensor of the sensor assembly of FIG. 16;

FIG. 19 is a schematic view of the bypass duct member of the fresh air machine of FIG. 2;

FIG. 20 is a schematic structural view of a bypass duct member and damper assembly of the fresh air machine of FIG. 2;

fig. 21 is a schematic structural view of a damper assembly of the fresh air machine of fig. 2.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a new fan.

In the embodiment of the present invention, as shown in fig. 1 to fig. 6, the new fan includes a housing 100 and a fan component 700 disposed in the housing 100, wherein the fan component 700 includes: the motor mounting bracket 710, the first motor 720, the wind wheel 730 and the volute 740 are connected with the housing 100; the first motor 720 is connected with the motor mounting bracket 710; the wind wheel 730 is connected with the first motor 720; the wind wheel 730 is disposed within the volute 740, and the volute 740 is connected to the motor mount 710. When the existing fan assembly 700 is installed, the first motor 720 is usually installed on the casing 100 of the new fan, then the volute 740 is installed, so that the volute 740 is fixed on the casing 100, then the wind wheel 730 is installed in the casing 100, and the wind wheel 730 is connected with the first motor 720, so that the fan assembly 700 needs to be assembled in the casing 100 during assembly, and the installation space in the casing 100 is small, which seriously affects the overall installation efficiency of the new fan. Specifically, the fan assembly 700 further includes a motor bracket connecting the first motor 720 and the motor mounting bracket 710.

The utility model discloses technical scheme is through adopting motor mounting bracket 710 connects first motor 720 with spiral case 740 for the position of first motor 720 and spiral case 740 can relatively fixed, makes fan part 700 can accomplish the assembly earlier in shell 100 outside, and the assembly space outside the subject is big, does benefit to and promotes fan part 700 assembly efficiency. Moreover, the fan assembly 700 of the present embodiment can be mechanically assembled in the production process of the fan assembly 700, and then the fan assembly 700 is integrally installed in the housing 100, so as to improve the assembly efficiency and efficiency of a new fan.

The technical scheme of the utility model can promote the modular production and the assembly of new fan, to the manufacturer of new fan, can realize giving fan manufacturer with fan part 700 as whole outsourcing, fan manufacturer provides the fan part 700 that assembles for the manufacturer of new fan can the rapid Assembly new trend, compare in the assembly in the shell 100 of new fan of the part that fan manufacturer provided first motor 720, wind wheel 730, worm wheel, assembly efficiency has obtained very big promotion. Receive new fan housing 100 installation space's influence, parts such as first motor 720, wind wheel 730, spiral case 740 can be in order to assemble at a high speed in the mechanization in housing 100, consequently the utility model discloses it is still favorable to promoting whole new fan industry more mechanizedly simultaneously.

Further, in this implementation, as shown in fig. 5, a gourd hole 711 is provided on the motor mounting bracket 710, the motor mounting bracket 710 is connected to the housing 100 through the gourd hole 711 by a screw, and the gourd hole 711 makes the whole fan component 700 more efficient and convenient to mount. The gourd hole 711 includes two large and small holes. When the fan component 700 is installed, a screw can be first drilled on the housing 100, then a large hole on the gourd hole 711 is aligned with the screw, then the screw is sleeved, then the fan component 700 is moved in the radial direction of the screw, so that the screw is clamped in a small hole of the gourd hole 711, and then the screw is fastened, so that the motor mounting bracket 710 is clamped by the screw. The fan assembly 700 is disassembled in a reverse manner to the fan assembly 700. The fan part 700 is installed by using the gourd hole 711, and has the advantage of convenience in disassembly and assembly. The motor mounting bracket 710 in this embodiment is not limited to the above technical solution, and in other implementations, the motor mounting bracket may be connected to the housing in a snap-fit manner; or, the motor mounting rack is bonded with the shell, so that the motor mounting rack has the advantage of convenience in mounting.

Further, in this embodiment, as shown in fig. 2 and 3, the fresh air machine further includes: a heat exchange core 600 in which a first air duct and a second air duct are formed to be spaced from each other; the fresh air duct piece 200 and the return air duct piece 300 are respectively connected to two sides of the heat exchange core 600; the fresh air duct piece 200, the heat exchange core 600 and the return air duct piece 300 divide the interior of the casing 100 into a fresh air duct and a return air duct, the fresh air duct includes the first duct, and the return air duct includes the second duct; the fresh air duct and the return air duct are both provided with the fan part 700. The new fan adopts the modularization dismouting design, new fan when the assembly, puts into wind channel spare, return air channel spare 300 and heat exchange core 600 in the shell 100, splice promptly the new wind channel with the return air channel, then the repacking fan part 700, connect automatically controlled box 900 with fan part 700 at last and accomplish the assembly promptly, new fan has the efficient advantage of dismouting.

Specifically, in this embodiment, as shown in fig. 2 and fig. 3, the heat exchange core 600 is disposed in the middle of the housing 100, so as to divide the internal space of the housing 100 into a first cavity and a second cavity located at two sides of the heat exchange core 600, the fresh air duct 200 and the return air duct 300 are respectively located in the first cavity and the second cavity, the fresh air duct abuts against the housing 100, the first cavity is divided into a first fresh air duct and a second return air duct, the return air duct abuts against the housing 100, the second cavity is divided into a second fresh air duct and a first return air duct, the first air duct communicates with the first fresh air duct and the second fresh air duct to form the fresh air duct, and the second air duct communicates with the first return air duct and the second return air duct to form the return air duct. And fan components 700 are arranged in the second fresh air sub-air channel and the second return air sub-air channel.

Further, in this embodiment, as shown in fig. 2 and fig. 3, the housing 100 further includes a bypass air duct 800, the bypass air duct 800 and the housing 100 form a bypass air duct, the bypass air duct 800 is connected to the fresh air duct 200 and the return air duct 300, and the bypass air duct is communicated with the fresh air duct and the return air duct. Specifically, the bypass duct member 800 is formed by assembling two sub-members.

Further, in this embodiment, as shown in fig. 3 and fig. 19 to 21, the fresh air machine further includes: the air valve assembly 820 is connected with the bypass air duct piece 800, the air valve assembly 820 comprises a valve 821, and the valve 821 movably blocks the bypass air duct. The air valve assembly 820 is used for opening and closing the bypass air channel, and when the return air channel is needed to adjust the temperature of fresh air in the air channel, the bypass air channel is opened by the air valve assembly 820. In this embodiment, the air valve assembly 820 is connected to the bypass air duct member 800, so that when the air valve assembly 820 needs to be overhauled, the bypass air duct member 800 can be directly taken out of the casing 100, and then the air valve assembly 820 is overhauled and maintained outside the casing 100.

Further, in this embodiment, as shown in fig. 19 to 21, the air valve assembly 820 further includes: an air valve support 822 connected with the bypass air duct 800, wherein the valve 821 is rotatably connected with the air valve support 822; and a second motor 823 installed at the blast gate bracket 822, wherein the second motor 823 is connected to the valve 821. The second motor 823 drives the valve 821 to rotate, so as to open and close the bypass air duct. The air valve assembly 820 of this embodiment is not limited to the above technical solution, and in other embodiments, the air valve assembly may further include: the air valve bracket is connected with the bypass air duct piece, a rack is arranged at the edge of the valve, and the second motor is meshed with the valve gear; the bypass air duct piece is internally provided with a guide groove, and the valve is arranged in the guide groove in a sliding manner, so that the valve can movably open and close the bypass air duct.

Further, in this embodiment, as shown in fig. 19 to 21, a mounting through hole 810 is provided at a side surface of the bypass air duct 800, the air valve bracket 822 is connected to a side surface of the bypass air duct, and the valve 821 is disposed in the bypass air duct through the mounting through hole 810. When the air valve assembly 820 is installed, the valve 821 is inserted into the bypass air channel through the installation through hole 810, and then the air valve bracket 822 and the bypass air channel piece 800 are connected, so that installation can be completed, and the motor is located outside the bypass air channel, so that the motor is convenient to maintain and disassemble. This embodiment is not limited to above-mentioned technical scheme, in other implementations, also can be, the side of bypass wind channel spare is equipped with uncovered, the bypass wind channel with the shell butt, so that the shell closing cap uncovered, thereby form the bypass wind channel, the blast gate subassembly passes through uncovered setting is in the bypass wind channel, has the convenient advantage of installation.

Further, in this embodiment, as shown in fig. 2 and 3, the bypass air duct is located between the fresh air duct member 200 and the return air duct member 300, and the bypass air duct abuts against the fresh air duct member 200, the return air duct member 300, the housing 100, and the heat exchange core 600. In this embodiment, the bypass air duct piece 800 is abutted to the housing 100, the fresh air duct piece 200, the return air duct piece 300, and the heat exchange core, so as to be fixed, and the bypass air duct piece 800 can be directly inserted into the housing 100 to complete installation, and can also be directly pulled out from the housing 100 to complete disassembly. The air valve component can be connected with the bypass air duct piece 800 at the outside of the shell 100, or can be detached from the bypass air duct piece 800, so that the air valve component 820 can be overhauled at the outside of the shell 100, and the air valve component 820 has the advantages of convenience in overhauling and dismounting. The bypass air duct 800 described in this embodiment is not limited to the above technical solution, and in other embodiments, the bypass air duct may be connected to the housing by screws, or the bypass air duct may be connected to the housing by a snap fit, which has an advantage of being convenient to disassemble and assemble.

Further, in this embodiment, as shown in fig. 1 to fig. 3, the housing 100 has a fresh air inlet 110, a fresh air outlet 120, a return air inlet 130 and a return air outlet 140, the fresh air duct communicates with the fresh air inlet 110 and the fresh air outlet 120, the return air duct communicates with the return air inlet 130 and the return air outlet 140, and one end of the bypass air duct is disposed near the fresh air inlet 110. The bypass air channel can supply indoor air in the return air channel to the fresh air channel at the fresh air inlet 110, and outdoor fresh air at the fresh air inlet 110 is mixed with the return air, so that the temperature of the outdoor air is more suitable, and the heat exchange burden of the heat exchange core body is favorably reduced.

In the embodiment of the present invention, as shown in fig. 1, fig. 10, and fig. 11, this new fan further includes an electric control box 900, the electric control box 900 includes a circuit board 930 and an electric control box body 910, the circuit board 930 is electrically connected to the fan component 700, the circuit board 930 is disposed in the electric control box body 910, a first wire trough 912 is disposed in the electric control box body 910, and the opening direction of the first wire trough 912 is avoided from the circuit board 930. The electric control box 900 is provided with wires for connecting electric devices such as the fan component 700, and when the wires are arranged in a disordered manner, the wires are easy to influence the electromagnetic compatibility of the circuit board 930, especially when the wires supply large current to pass through.

The utility model discloses technical scheme is in through adopting set up in the automatically controlled box 900 first trough 912, first trough 912 can be used for supplying the installation is arranged to the wire of circuit board 930, is favorable to making wire in the automatically controlled box 900 is arranged more regularly. The opening direction of the first wire routing groove 912 avoids the circuit board 930, so that the groove wall of the first wire routing groove 912 separates the first wire routing groove 912 from the circuit board 930, thereby preventing the wires in the wire routing groove from being arranged in a crossed manner with the circuit board 930, and simultaneously preventing the wires in the first wire routing groove from radiating the circuit board 930, which is beneficial to reducing the influence of the wires on the electromagnetic compatibility of the circuit board 930.

Further, in this embodiment, as shown in fig. 1, 10, and 11, the electrical control box body 910 includes: a mounting base plate 911, the mounting base plate 911 being connected to the housing 100, the circuit board 930 being connected to the mounting base plate 911, and the first wiring groove 912 being provided in the mounting base plate 911. The circuit board 930 and the first wire groove 912 are both arranged on the installation floor, so that the guide for connecting the circuit board 930 is conveniently led into the first running groove, and the advantage of convenient wire arrangement is achieved. Specifically, in this embodiment, the electrical control box body 910 further includes an electrical control box 900 body, the mounting floor covers the electrical control box 900 body, and the circuit board 930 and the first wire groove 912 are located in the electrical control box 900 body. The electronic control box body 910 of this embodiment is not limited to the above technical solution, and in other implementations, the electronic control box body may include: mounting plate and automatically controlled box body, the mounting plate lid closes automatically controlled box body, the circuit board sets up on the mounting plate, first trough sets up automatically controlled box body.

Further, in the present embodiment, as shown in fig. 10 and 11, the circuit board 930 is disposed on the front surface of the mounting board 911, and the mounting board 911 is partially raised toward the front surface side of the mounting board 911 to form the first wiring groove 912. The first wiring groove 912 is formed by local bulge of the installation bottom plate 911, and has the advantage that the first wiring groove 912 is convenient to process. Specifically, two ends of the first wiring groove 912 are through, so that guiding can be facilitated to stretch into or stretch out from the end of the first wiring groove 912. In other implementations, the first trough wall and the second trough wall that are arranged at intervals are protruded from the front surface of the mounting base plate, and the first trough wall, the second trough wall and the mounting base plate enclose the first trough; the front surface of the mounting bottom plate is provided with a sunken groove to form the first wiring groove, so that the mounting bottom plate has the advantage of convenience in processing.

Further, in the present embodiment, as shown in fig. 10 and 11, the first routing groove 912 is located at the edge of the mounting plate. Specifically, the first routing groove 912 is arranged at the edge of the mounting plate, so that the first routing groove 912 is formed by folding the edge of the mounting plate to form the bump, thereby forming the first routing groove 912. Specifically, in this embodiment, a gap is formed between a groove wall outside the first wiring groove 912 and the housing 100, so that a wire can be conveniently placed into the first wiring groove 912 from the gap. This embodiment is not limited to above-mentioned technical scheme, and in other embodiments, can also be, first trough is located the middle part of mounting panel, first trough can be through the mode shaping of punching press, has the advantage that machining efficiency is high.

Further, in this embodiment, the mounting base plate 911 is a metal base plate, so that the wall of the first wiring groove 912 can effectively shield the influence of the conductive wires on the electromagnetic compatibility of the circuit board 930. Specifically, the metal base plate may be an iron plate, a copper plate, an alloy member, or the like. The mounting base plate 911 in this embodiment is not limited to a metal base plate, but in other implementations, the mounting base plate may be a plastic plate.

Further, in this embodiment, as shown in fig. 10, the electronic control box 900 further includes a circuit mounting plate 920 connected to the mounting base plate 911, the circuit mounting plate 920 has a mounting cavity 921, the circuit board 930 is disposed in the mounting cavity 921, and the first wiring groove 912 is located outside the mounting cavity 921. The circuit mounting board 920 can protect the circuit board 930 while facilitating stable mounting of the circuit board 930. Specifically, in this embodiment, the circuit mounting board 920 is a plastic member, which has good insulation property, and is beneficial to improving the safety of the circuit board 930 during operation. The circuit mounting board 920 can also protect the circuit board 930 and reduce the influence of wires on the circuit board 930. The electronic control box 900 of this embodiment is not limited to the above technical solution, and in other implementations, a mounting cavity is formed on the front surface of the mounting base plate, and the circuit board is disposed in the mounting cavity.

Further, in the present embodiment, as shown in fig. 10, the circuit mounting board 920 is formed with a second wiring groove 922, and the second wiring groove 922 is located outside the mounting cavity 921. The second routing channel 922 can also be used to route the wires of the circuit board 930. The first wiring groove 912 and the second wiring groove 922 can be used for arranging different wires, for example, the first wiring groove 912 is used for arranging strong current wires, the second wiring groove 922 is used for arranging weak current wires, and the classified arrangement of the wires is beneficial to enabling the wires in the electronic control box 900 to be more regular. The second cabling slot 922 in this embodiment is not limited to the above technical solution, and in other implementations, the second cabling slot may be disposed on the front surface of the installation base plate.

Further, in this embodiment, as shown in fig. 10 and 11, the first cabling slot 912 and the second cabling slot 922 are respectively located at two sides of the circuit board 930, so that a distance between the first cabling slot 912 and the second cabling slot 922 is relatively large, thereby avoiding wires that need to be arranged in the first cabling slot 912 and being incorrectly arranged in the second cabling slot 922, and facilitating wire classification arrangement. The embodiment is not limited to the above technical solution, and in other implementations, the first wiring groove and the second wiring groove may be located on the same side of the circuit board, which is beneficial to centralized arrangement of wires and improves wiring efficiency.

Further, in this embodiment, as shown in fig. 10, the mounting base plate 911 is further provided with a wire holder 913 and a wire clamp 914. The wire holder 913 and the wire pressing clip 914 can be used for connecting and fixing a strong electric wire, which is difficult to fix during wiring because the strong electric wire usually has a larger diameter, and the wire holder 913 and the wire pressing clip 914 can fix the strong electric wire on the mounting base 911 well, so as to avoid the crossing of the electric wire and the circuit board 930 caused by the tilting of the wire, thereby affecting the electromagnetic compatibility of the circuit board 930. The wire holder 913 and the wire clamp 914 of the present embodiment may also be used to fix a weak point wire. The installation bottom plate 911 of this embodiment is not limited to the above technical solution, and in other implementations, a wire holder may also be disposed on the installation bottom plate; or, a wire pressing clamp is further arranged on the mounting bottom plate, so that the fixing of the wires is facilitated.

Further, in the present embodiment, as shown in fig. 1 and 2, the electronic control box 900 is attached to an outer surface of the housing 100. The fresh air machine is usually arranged on the top of a room or a pipeline close to the top, and is inconvenient to maintain and disassemble. The existing fresh air machine usually arranges the electronic control box 900 in the casing 100, and when the electronic control box 900 needs to be retrieved, the casing 100 needs to be opened first, so that the electronic control box 900 is not convenient to overhaul. In this embodiment, the electronic control box 900 is disposed outside the housing 100, so that the worker can directly disassemble and assemble or overhaul the electronic control box 900.

Further, in this embodiment, as shown in fig. 1 and fig. 2, the new fan includes two fan parts 700 disposed at an interval, and the distance between the electronic control box 900 and the two fan parts 700 is equivalent. Specifically, one of the two fan components 700 is disposed in a fresh air duct of the fresh air fan and used for driving the outdoor fresh air to enter the room, and the other is disposed in a return air duct of the fresh air fan and used for driving the indoor air to be discharged to the outside. In this embodiment, the two fan components 700 have the same structure and the same distance from the electronic control box 900, so that the two fan components 700 can be interchanged with each other at will and can be connected to the electronic control box 900, and the fan components 700 are not required to be installed at the same position, thereby avoiding the rework caused by the position error of the fan component 700 installation position 513 and being beneficial to improving the assembling efficiency of the fresh air fan.

Further, in this embodiment, as shown in fig. 10 and 12, two first wire through holes 940 are disposed on the electronic control box 900, a second wire through hole 950 is disposed on the housing 100 corresponding to each first wire through hole 940, and a distance from one first wire through hole 940 to an adjacent fan component 700 is equivalent to a distance from another first wire through hole 940 to another fan component 700, so that positions of the two fan components 700 are interchanged, and a lead on the fan component 700 can still be connected to the circuit board 930 through the first wire through hole 940 and the second wire through hole 950. The wire of the fan component 700 connected to the circuit board 930 can sequentially pass through the second wire passing hole 950 and the first wire passing hole 940 to be connected to the circuit, so that the wire is not exposed outside the fresh air fan, which is beneficial to protecting the wire.

Further, in this embodiment, as shown in fig. 10, a fresh air fan connection terminal 960 and a return air fan connection terminal 970 are disposed on the circuit board 930, and distances from the fresh air fan connection terminal 960 to the two first wire passing holes 940 are different. Specifically, the fresh air fan connection terminal 960 is used for connecting the fan component 700 in the fresh air duct, and the return air fan connection terminal 970 is used for connecting the fan component 700 in the return air duct. When the circuit board 930 is reversely mounted in the electronic control box 900, the position from the new air fan connection terminal 960 to the two first wire passing holes 940 is changed, so that the worker is prompted that the circuit board 930 is erroneously mounted. The embodiment is not limited to the above technical solution, and in other implementations, the distances from the terminal of the return air fan to the two first wire passing holes may be different, so as to prompt whether the circuit board is correctly installed.

Further, in this embodiment, as shown in fig. 2, a fresh air duct and a return air duct are formed in the housing 100, and the blower part 700 is disposed in both the fresh air duct and the return air duct; the length of the wire connecting the fresh air fan connecting terminal 960 with the fan component 700 in the fresh air duct is smaller than the distance from the fresh air fan connecting terminal 960 to the fan component 700 in the return air duct. When the electronic control box 900 is reversely installed, the length of the lead of the fresh air fan connecting terminal 960 is not long enough to connect the fan component 700 in the return air duct, so that the fool-proof effect is realized. Specifically, the fan assembly 700 of this embodiment has a first section of conducting wire, and the lengths of the first sections of conducting wires of the two fan assemblies 700 are equal, and the new air fan terminal 960 has a second section of conducting wire, and the length of the second section of conducting wire can be connected to the first section of conducting wire of the fan assembly 700 in the new air duct, but is not enough to be connected to the first section of conducting wire of the fan assembly 700 in the return air duct.

The embodiment is not limited to the above technical solution, and in other embodiments, a fresh air duct and a return air duct are formed in the housing, and the fresh air duct and the return air duct are both provided with the fan component; the length of a lead of the return air fan connecting terminal connected with a fan component in the return air duct is smaller than the distance from the fresh air fan connecting terminal to the fan component in the return air duct. The electric control box has a foolproof function, and a wiring terminal of the return air fan is prevented from being connected with a fan component in the fresh air duct.

In the embodiment of the present invention, as shown in fig. 2 and 3, the housing 100 of the new air blower has a new air inlet 110; the heat exchange core 600 is arranged in the fresh air duct member 200 in the shell 100, the fresh air duct member 200 is arranged in the shell 100, the fresh air inlet 110 and the heat exchange core 600 are communicated with the fresh air duct member 200, the fresh air duct member 200 is provided with an insertion hole 220 communicated with the fresh air duct, and the insertion hole 220 is arranged close to the heat exchange core 600; and a sensor assembly 500 inserted into the insertion hole 220. Specifically, the fresh air duct member 200 and the housing 100 can enclose a channel, and outdoor fresh air enters from the fresh air inlet 110 of the housing 100 and can enter the heat exchange core 600 through the fresh air duct member 200 for heat exchange. The sensor assembly 500 is used for measuring the fresh air in the fresh air duct member 200 to monitor the air quality of the fresh air.

The utility model discloses technical scheme is through adopting set up jack 220 on the new trend wind channel, make sensor assembly 500 can carry out the dismouting through the mode of plug, has the convenient advantage of dismouting, makes things convenient for the staff right sensor assembly 500 overhauls. The sensor assembly 500 is disposed within the housing 100 such that the housing 100 protects the sensor from damage to the sensor assembly 500 during handling of the fresh air machine. The air current of heat exchange core 600 department will be more stable than the air current of new trend import 110 department, sensor assembly 500 is close to heat exchange core 600 sets up for the air current that the sensor detected is more stable, and the testing result that obtains is more stable, more accurate.

Further, in the present embodiment, as shown in fig. 1 and fig. 2, the housing 100 has an opening 150, and the housing 100 includes a panel 160 detachably covering the opening 150; the insertion hole 220 has a insertion hole 221, the insertion hole 221 is disposed on a surface of the fresh air duct member 200 facing the panel 160, and the sensor assembly 500 is inserted into the insertion hole 220 through the insertion hole 221. When the sensor assembly 500 is disassembled, the insertion hole 220 on the fresh air duct member 200 can be seen only by disassembling the panel 160 of the shell 100, so that a worker can conveniently take out the sensor assembly 500 from the insertion hole 220, the installation process of the sensor assembly 500 is opposite to the disassembly process, and the disassembly and installation process of the sensor assembly 500 has the advantages of convenience and high efficiency. The sensor assembly 500 of the present embodiment is not limited to the above technical solution, and in other embodiments, the housing may have an opening, and the housing includes a top plate that detachably covers the opening; the jack has the socket, the socket sets up fresh air duct spare towards the surface of roof, sensor module by the socket inserts the jack has sensor module easy dismounting's advantage.

Further, in this embodiment, as shown in fig. 3 and 13, a ventilation opening 230 is provided on a surface of the fresh air duct member 200 facing the heat exchange core 600, the ventilation opening 230 communicates with the insertion hole 220, and the sensor assembly 500 includes: a mounting box 510, wherein a surface of the mounting box 510 facing the ventilation opening 230 is provided with a detection hole 511; and a sensor disposed within the mounting box 510. The sensor sets up in the mounting box 510, the mounting box 510 can effectively protect the sensor, avoids the sensor to be damaged in installation and dismantlement process. The detection hole 511 communicates the inside and the outside of the mounting box 510, and air entering the casing 100 from the fresh air inlet 110 can flow to the detection hole 511 through the ventilation opening 230 and then enter the mounting box 510 from the detection hole 511, so that a sensor in the mounting box 510 can detect the quality of fresh air. This embodiment is not limited to above-mentioned technical scheme, and in other embodiments, also can, the jack is the through-hole, the jack has the opening that is located fresh air duct spare inside wall face, sensor assembly includes: the surface of the mounting box, which is close to the opening, is provided with a detection hole; and the sensor is arranged in the mounting box and detects the quality of the fresh air through the detection hole.

Further, in this embodiment, as shown in fig. 2 and 16, a lug 512 is disposed on an outer surface of the mounting box 510, the lug 512 is located outside the insertion hole 220, the lug 512 abuts against the fresh air duct member 200, a first screw hole is disposed on the lug 512, and a second screw hole adapted to the first screw hole is disposed on a surface of the fresh air duct member 200 facing the panel 160. Specifically, the mounting box 510 is connected to the fresh air duct member 200 through screws, and the screws sequentially pass through the second screw holes and the first screw holes, so that the mounting box 510 is fixed to the fresh air duct member 200. When the sensor assembly 500 is installed, the sensor assembly 500 is firstly inserted into the jack 220 from the socket 221 until the lug 512 is abutted to the fresh air duct, at the moment, the sensor assembly 500 is pre-positioned, and a worker can complete installation only by driving screws. The sensor assembly 500 can be fixed by a single screw in the embodiment, and the sensor assembly has the effects of convenience in disassembly and assembly and stability in installation.

Further, in the present embodiment, as shown in fig. 18, the mounting box 510 is snap-coupled to the sensor. When the sensor and the mounting box 510 are assembled, the sensor can be fixed only by applying pressure to mount the sensor in place, and the sensor assembly 500 has the advantage of high assembly efficiency. The mounting box 510 and the sensor in this embodiment are not limited to the above technical solutions, and in other embodiments, the mounting box and the sensor may be connected by screws; the mounting box can be bonded with the sensor, so that the sensor is stably mounted.

Further, in the present embodiment, as shown in fig. 17, the inner surface of the mounting box 510 has a mounting position 513, the detection hole 511 is disposed at the mounting position 513, the inner surface of the mounting box 510 is convexly provided with a plurality of hooks 514, the plurality of hooks 514 are disposed around the mounting position 513, the free ends of the hooks 514 have barbs, and the sensor is disposed at the mounting position 513, and the barbs abut against the surface of the sensor away from the detection hole 511. Specifically, the hook 514 includes: and one end of the connecting arm is connected with the mounting box 510, and the other end of the connecting arm is provided with the barb. The hooks 514 surround the sensor, so as to limit the movement of the sensor along the plane of the mounting position 513, and the barbs abut against the surface of the sensor away from the detection hole 511, so as to limit the displacement of the sensor on the normal line of the mounting position 513, so that the sensor is fixed. In this embodiment the sensor assembly 500 is not limited to the above technical solution, and in other implementations, it may also be that, a bayonet is provided on the mounting box, a buckle adapted to the bayonet is provided on the sensor, the buckle is inserted into the bayonet to realize that the sensor is connected to the mounting box, and the sensor assembly has the advantage of high assembly efficiency.

Further, in this embodiment, as shown in fig. 17, a mounting rib 516 is disposed on the mounting position 513, and the mounting rib 516 abuts against a surface of the sensor close to the detection hole 511. The rib 516 abuts against the sensor, so that the sensor is prevented from blocking the detection hole 511 on the mounting position 513, and gas can smoothly flow into the mounting box 510 through the detection hole 511. The detection hole 511 is arranged right opposite to the sensor, so that the sensor can effectively detect the quality of fresh air.

Further, in this embodiment, as shown in fig. 17 and 18, a positioning hole is formed on the sensor, a positioning column 517 is arranged on the installation site 513, and the positioning column 517 penetrates through the positioning hole. Reference column 517 has the direction function for the sensor can install in place when the installation, is favorable to promoting the efficiency of sensor installation. Meanwhile, the positioning column 517 is matched with the positioning hole, so that the sensor can be more stably installed in the installation box 510.

Further, in the present embodiment, as shown in fig. 16, the mounting box 510 includes: a sensor cartridge 518, the sensor being disposed within the sensor cartridge 518; and the box cover 519 is in snap-fit connection with the sensor box body 518. In the assembly type of the sensor assembly 500, the sensor is firstly installed in the sensor box body 518, and then the box cover 519 is covered on the sensor box body 518, so that the installation is completed, and the sensor assembly has the advantage of high efficiency and convenience in assembly. The mounting box 510 of this embodiment is not limited to the above technical solution, and in other implementations, the sensor box body and the box cover may be connected by screws; the sensor box body is rotatably connected with the box cover, so that the sensor component is convenient to assemble.

Further, in this embodiment, as shown in fig. 16 and 17, a wire hole 540 is provided on the mounting box 510, and the wire hole 540 allows a lead of the sensor to extend out of the mounting box 510. The sensor is connected to the electric control box 900 of the fresh air machine through a wire. The wire is followed walk line hole 540 stretches out, can avoid the wire of sensor is pressed by lid 519 and is pressed from both sides, can effectively protect the wire, can make arranging of wire more regular simultaneously.

Further, in the present embodiment, the sensors include a PM2.5 sensor 520 and a humidity sensor 530. The sensor can detect PM 2.5's index and the humidity of new trend in the new trend. The multiple sensor is concentrated in the mounting box 510, multiple sensor can once only be installed in the new fan, have the advantage that promotes sensor installation effectiveness. The sensor in this embodiment is not limited to the above technical solution, and in other embodiments, the sensor may include a PM2.5 sensor; alternatively, the sensor comprises a humidity sensor; it can also be that the sensor includes PM2.5 sensor, humidity transducer and formaldehyde sensor, the sensor package has the more comprehensive advantage of air detection.

In the embodiment of the present invention, as shown in fig. 2, 3 and 7, the fresh air duct member 200 and the return air duct member 300 of the fresh air blower are both disposed in the casing 100; the fresh air duct piece 200, the return air duct piece 300 and the shell 100 form a mounting groove 180 in an enclosing mode; the fresh air duct piece 200 is used for forming a part of fresh air duct, and the return air duct piece 300 is used for forming a part of return air duct; heat exchange core 600 sets up mounting groove 180, new trend wind channel spare 200 orientation the side of heat exchange core 600, and the orientation of return wind channel spare 300 the side of heat exchange core 600 all is equipped with guide portion 240, guide portion 240 has the butt the guide face 241 of heat exchange core 600. Specifically, fresh air duct piece 200 with return air duct piece 300 with heat exchange core 600 connects, thereby makes heat exchange core 600 with fresh air duct with return air duct intercommunication to realize that heat exchange core 600 carries out the heat transfer to fresh air and return air. The new air blower of this embodiment is not limited to the above technical solution, and in other embodiments, the new air duct component is used to form a new air duct, and the return air duct component is used to form a return air duct; the side of the fresh air duct piece facing the heat exchange core may be provided with a guide portion 240; alternatively, the side of the return air duct member facing the heat exchange core is provided with a guide portion 240.

The utility model discloses technical scheme encloses into mounting groove 180 through adopting new trend wind channel spare 200, return air wind channel spare 300 and shell 100, for the confession heat exchange core 600 installs, simultaneously can make after heat exchange core 600 has installed can with new trend wind channel spare 200, return air wind channel spare 300 butt, thereby make heat exchange core 600 intercommunication new trend wind channel with the return air wind channel. Guide portion 240 is used for guiding heat exchange core 600 installs, promotes the convenience of heat exchange core 600 installation, guide face 241 with heat exchange core 600 butt is favorable to promoting the stability of heat exchange core 600 installation.

Further, in the present embodiment, as shown in fig. 14 and 15, the guide portion 240 is provided at both the end of the fresh air duct member 200 and the end of the return air duct member 300. Fresh air duct piece 200's guide portion 240 with the guide portion 240 in return air duct sets up at the tip, can avoid guide portion 240 shelters from drill way on the heat exchange core 600, in order to ensure heat exchange core 600 can abundant heat transfer. The fresh air duct member 200 and the return air duct member 300 in this embodiment are not limited to the above technical solutions, and in other implementations, the guide portions 240 may be disposed in the middle of the fresh air duct member and the middle of the return air duct member; or, the middle part and the tip in new trend wind channel all are provided with guide part 240, the middle part and the tip in return air wind channel all are equipped with guide part 240 has the stable advantage of heat exchange core installation.

Further, in this embodiment, as shown in fig. 2 and fig. 3, the fresh air duct member 200 and the return air duct member 300 are located at two sides of the heat exchange core 600, so that the guiding portions 240 are located at two sides of the heat exchange core 600 respectively, the guiding effect is good, and the heat exchange core 600 is more stably installed in the installation groove 180. This embodiment new wind channel spare 200 with return air channel spare 300 is not only limited to above-mentioned technical scheme, in other implementations, also can be, new wind channel spare with return air channel spare is connected, return air channel spare with the shell is connected, guide part 240 on the new wind channel spare with guide part 240 on the return air channel spare butts respectively adjacent two sides on the heat exchange core, guide part 240 can guide the installation of heat exchange core.

Further, in this embodiment, as shown in fig. 7, the housing 100 includes a mounting plate, the fresh air duct member 200 and the return air duct member 300 are all connected to the mounting plate, the mounting plate encloses the fresh air duct member 200 and the return air duct member 300 into the mounting groove 180, the surface of the fresh air duct member 200 away from the mounting plate and the surface of the return air duct member 300 away from the mounting plate are provided with the supporting members 190, and the supporting members 190 can enhance the strength of the fresh air duct member 200 and the return air duct member 300. Specifically, in this embodiment, the mounting panel is backplate 170, because the installation of heat exchange core 600 can with fresh air duct component 200 with return air duct component 300 takes place the butt, and is consequently right fresh air duct component 200 with the requirement in the intensity that has of return air duct component 300, for avoiding fresh air duct component 200 with return air duct component 300 takes place to damage when heat exchange core 600 installs, consequently fresh air duct component 200 with set up support piece 190 on the return air duct component 300. The support piece 190 is arranged on the surface of the mounting plate, which is far away from the fresh air duct piece 200 and the return air duct piece 300, and has the advantages of large mounting space and convenient mounting. The supporting member 190 in this embodiment is not limited to the above technical solution, and in other implementations, the supporting member 190 may be disposed on a surface of the fresh air duct member away from the mounting plate; alternatively, the surface of the return air duct member away from the mounting plate is provided with a support member 190.

Further, in the present embodiment, as shown in fig. 2 and 3, the heat exchange core 600 is in a polygon prism shape, the heat exchange core 600 has a first side surface 610 located outside the installation groove 180, and the support 190 has a first abutting surface 191 abutting against the first side surface 610. Specifically, the heat exchange core 600 has a portion protruding from the installation groove 180 after being placed in the installation groove 180, the protruding portion having the first side surface 610, the supporter 190 abutting against the first side surface 610. Specifically, the heat exchange core 600 has a polygonal prism shape such that a surface against which the guide surface 241 abuts is disposed at an angle to the first side surface 610, and the guide surface 241 and the first abutting surface 191 can sandwich the heat exchange core 600 together, so that the heat exchange core 600 is fixed in the installation groove 180. Specifically, in the present embodiment, the heat exchange core 600 has a hexagonal prism shape, but is not limited to the hexagonal prism shape, and in other embodiments, the heat exchange core may have an octagonal prism shape, or the heat exchange core may have a pentagonal prism shape.

Further, in this embodiment, as shown in fig. 2 and 8, the heat exchange core 600 further has a second side surface 620 located in the installation groove 180, the second side surface 620 is adjacent to the first side surface 610, and the support 190 further has a second abutting surface 192 abutting against the second side surface 620. The first side surface 610 and the second side surface 620 are arranged at an angle, and the first abutting surface 191 and the second abutting surface 192 are correspondingly arranged at an angle. The two supporting members 190 are disposed at both sides of the heat exchange core 600 such that the two supporting members 190 fix two corners of the heat exchange core 600, respectively, thereby fixing the heat exchange core 600. The heat exchange core 600 is fixed by the support 190 having high mechanical strength, and has an advantage of stable fixing effect.

Further, in the present embodiment, the guide surface 241 is a slope surface that cooperates with the second side surface 620. After heat exchange core 600 installed, guide face 241 with heat exchange core 600 laminating has the guide people exchange core installation effectiveness is good, and the good advantage of stability after the installation. The guide surface 241 of this embodiment is not limited to above-mentioned technical solution, and in other implementations, it may also be that, the guide surface includes the cambered surface that is close to the support piece to and adjoin the plane that the cambered surface is kept away from the side of support piece, has the convenience the heat exchange core aims at the advantage of mounting groove, is favorable to promoting the advantage of heat exchange core installation effectiveness.

Specifically, the present embodiment has two supporting members 190, wherein one of the supporting members 190 is shown in fig. 9, and the supporting member 190 includes: a plate body connected to the fresh air duct member 200 or the return air duct member 300; and a contact buckle 193 having the first contact surface 191, wherein the contact buckle 193 is rotatably connected to the plate body, and the contact buckle 193 has a first state in which it is in contact with the first side surface 610 and a second state in which it is separated from the first side surface 610. The abutting buckle 193 can rotate to separate the first abutting surface 191 from the first side surface 610, so that the fastening state of the support 190 to the heat exchange core 600 is released, and the support 190 can be conveniently taken out of the mounting groove 180. When the heat exchanger is installed, the abutting buckle 193 is rotated to one side of the installation groove 180 to avoid the notch of the installation groove 180, then the heat exchanger is placed in the installation groove 180, and then the abutting buckle 193 is rotated to the first state through rotation, so that the heat exchanger is fixed.

Further, in this embodiment, as shown in fig. 7, the fresh air machine further includes a bypass air duct piece 800 located in the installation groove 180, the bypass air duct piece 800 is connected to one end of the heat exchange core 600, the bypass air duct piece 800 and the casing 100 enclose a bypass air duct, and the bypass air duct communicates the fresh air duct and the return air duct. Specifically, one end of the heat exchange core 600 abuts against the bypass duct member 800, and the other end abuts against the housing 100, so that the heat exchange core 600 is fastened in the mounting groove 180. The bypass air channel is used for mixing the air of the return air channel into the fresh air channel, so that the heat or the cold of the indoor air of the return air channel is brought to the fresh air in the fresh air channel, and the temperature of the fresh air entering the room is more suitable. The present embodiment is not limited to the above technical solution, and in other implementations, both ends of the heat exchange core may be abutted to the housing.

Further, in this embodiment, the fresh air duct member 200 and the return air duct member 300 are foam members.

In the embodiment of the present invention, as shown in fig. 3, 13, and 14, the new fan includes a filter screen 400, the housing 100 has a new air inlet 110, a new air outlet 120, a return air inlet 130, and a return air outlet 140, a new air duct communicating with the new air inlet 110 and the new air outlet 120, and a return air duct communicating with the return air inlet 130 and the return air outlet 140 are provided in the housing 100, and the new air duct and the return air duct are spaced from each other; an elastic mounting part 210 is arranged on the inner wall surface of the fresh air duct and the inner wall surface of the return air duct, and a slot 211 is arranged on the elastic mounting part 210; and a filter screen 400 inserted in the insertion groove 211. Among the current new fan, be used for the installation the slot 211 of filter screen 400 is usually for being made by hard materials such as sheet metal component or working of plastics, and the intensity of filter screen 400 is lower usually, consequently, when the slot 211 size that hard material formed is too big, the installation of filter screen 400 is unstable, takes place easily to rock, and when the slot 211 size that hard material formed was too little, can take place to warp during the installation of filter screen 400 for filter screen 400 damages, and consequently hard material is high to the requirement of the size precision of slot 211, and the processing degree of difficulty is big. The elastic mounting portion 210 in this embodiment is not limited to the above technical solution, and in other implementations, an elastic mounting portion may be disposed on an inner wall surface of the fresh air duct; or an elastic mounting part is arranged on the inner wall surface of the return air duct.

The utility model discloses a technical scheme passes through set up slot 211 on the resilient mounting portion 210, make slot 211's cell wall has elasticity, works as filter screen 400 inserts during the slot 211, slot 211's groove wall receives deformation takes place during the filter screen 400 extrusion, can avoid the cell wall to destroy filter screen 400, makes filter screen 400 plug is safer. After the filter screen 400 is inserted into the insertion slot 211, the filter screen 400 is pressed by the resilience force of the slot wall, so that the filter screen 400 can be stably fixed in the insertion slot 211. Because the elastic mounting portion 210 has elastic characteristics, the accuracy of the slot 211 processing can be effectively reduced, and the processing efficiency of the slot 211 is favorably improved.

Further, in this embodiment, the elastic mounting portion 210 is a foam. The foam piece has the characteristic of convenient processing, and the slot 211 is easy to be arranged on the elastic mounting part 210; meanwhile, the foam piece also has the advantage of light weight, and the weight of the fresh air machine is favorably reduced. When the filter screen 400 is inserted into the insertion groove 211 of the foam piece, the filter screen 400 extrudes the foam piece, so that the foam piece deforms, the insertion groove 211 deforms to be suitable for the size of the filter screen 400, and the filter screen 400 has the advantages of safety and stability in installation. The embodiment is not limited to the above technical solution, and in other implementations, the elastic mounting portion may be a rubber member; or, the elastic mounting part comprises two spring pieces which are oppositely arranged, and the two spring pieces form the slots, so that the filter screen is safer in the assembling and disassembling process.

Further, in this embodiment, as shown in fig. 2 and 3, the fresh air machine further includes an air duct member, the air duct member is used to form at least part of the fresh air duct or at least part of the return air duct, the air duct member is a foam air duct member, and the mounting portion and the air duct member are integrally formed. Specifically, in this embodiment, new fan includes two wind channel spare, one of them wind channel spare is new wind channel spare 200 for form the part new wind channel, another wind channel spare is return wind channel spare 300, is used for the part of formation return wind channel, two all be equipped with on the wind channel spare resilient mounting portion 210, wind channel spare with resilient mounting portion 210 integrated into one piece, wind channel spare with resilient mounting portion 210 is the foam spare, has the convenient advantage of installation. The air duct component made of the foam material has the advantages of light weight, convenience in processing, low price and good heat preservation effect, reduces the loss of heat or cold of indoor return air, and improves the utilization efficiency of indoor air energy. The air duct member in this embodiment is not limited to the above technical solution, and in other implementations, the air duct member may be configured to form at least part of the fresh air duct; or, the air duct member is used for forming at least part of the return air duct; or, new fan only includes an air duct spare, air duct spare is used for forming new wind channel with the return air wind channel, air duct spare integrated into one piece has the convenient advantage of new fan assembly.

Further, in this embodiment, as shown in fig. 2 and fig. 3, two elastic mounting portions 210 are respectively disposed on an inner wall surface of the fresh air duct and an inner wall surface of the return air duct, notches of the slots 211 of the two elastic mounting portions 210 are oppositely disposed, and two ends of the filter screen 400 are respectively disposed in the two slots 211. The two slots 211 are respectively used for fixing two ends of the filter screen 400, so that the filter screen 400 is more stably installed. This embodiment elastomeric mounting portion 210 is not only limited to above-mentioned technical scheme, in other implementations, also can be, elastomeric mounting portion follows the radial extension in new trend wind channel, elastomeric mounting portion has the edge slot both ends link up on, the middle part setting of filter screen is in the slot, have the convenient advantage of filter screen installation.

Further, in this embodiment, as shown in fig. 1 and fig. 2, the housing 100 has an opening 150, the housing 100 includes a front panel 160 detachably covering the opening 150, and a back panel 170 disposed opposite to the front panel 160, the elastic mounting portion 210 has a mounting surface facing the front panel 160, and the slot 211 extends along a direction from the back panel 170 to the front panel 160 and penetrates through the mounting surface. When the filter screen 400 is detached, the panel 160 is detached, and then the filter screen 400 is pulled out from the slot 211 and then taken out from the opening 150; the filter screen installation then during with the process of filter screen dismantlement is opposite, filter screen 400 has the convenient advantage of dismouting.

Further, in this embodiment, the slot 211 has an insertion end on the mounting surface, and the slot width of the insertion end gradually increases along the direction from the back plate 170 to the front plate 160. Specifically, it is loudspeaker form to insert the end, has the convenience filter screen 400 aligns the advantage of slot 211 is favorable to promoting the efficiency and the convenience of filter screen 400 installation.

Further, in this embodiment, as shown in fig. 2, the fresh air machine further includes a supporting member 190, and two ends of the supporting member 190 are respectively connected to the two elastic mounting portions 210. Specifically, the supporting member 190 is a sheet metal member, but is not limited to a sheet metal member, and in other embodiments, may be a plastic member. The support 190 can effectively improve the mechanical strength of the air duct piece, and in this embodiment, the air duct piece is a foam piece, so that the mechanical strength of the air duct piece is insufficient and needs to be compensated by the support 190. The support member 190 connects two the elastic mounting portions 210, which can avoid excessive deformation of the elastic mounting portions 210 during disassembly and assembly, so that the distance between the elastic mounting portions 210 becomes too large, thereby causing the filter screen 400 to be separated.

Further, in this embodiment, as shown in fig. 2, the supporting member 190 is located between the elastic mounting portion 210 and the panel 160, the supporting member 190 is provided with two avoiding holes of the slot 211, and the avoiding holes extend along two directions from one of the elastic mounting portion 210 to the other. When the filter screen 400 is installed, the filter screen 400 can pass through the avoiding hole of the support member 190, so as to be inserted into the insertion groove 211, thereby completing the installation of the filter screen 400. The avoiding hole can ensure efficient installation of the filter screen 400.

Further, in this embodiment, as shown in fig. 3, a first heat exchange channel and a second heat exchange channel are formed in the heat exchange core 600 and are spaced from each other, the fresh air duct includes the first heat exchange channel, and the return air duct includes the second heat exchange channel; the filter screen 400 is arranged between the fresh air inlet 110 and the heat exchange core 600; the filter screen 400 is arranged between the return air inlet 130 and the heat exchange core 600. Fresh air inlet 110 with filter screen 400 between the heat exchange core 600 can be used for the outer fresh air of filtration purification room for it is cleaner to get into indoor fresh air, can promote customer's comfort level. The first heat exchange channel and the second heat exchange channel have the characteristic of small cross-sectional area, and the two filter screens 400 can protect the heat exchange core 600 and reduce the blockage of the first heat exchange channel and the second heat exchange air channel.

Further, in this embodiment, as shown in fig. 1 and fig. 2, the fresh air inlet 110 and the return air inlet 130 are respectively located at two sides of the heat exchange core 600, and the two filter screens 400 are respectively disposed at two sides of the heat exchange core 600, so that each filter screen 400 has a larger installation space, and the filter screens 400 are convenient to install.

Sensor assembly 500 set up the filter screen 400 with between the heat exchange core 600, sensor assembly 500 measures the new trend after being filtered, can enough detect the filter effect of filter screen 400 can be used for the analysis again to the contrast is enough up to standard by the air after being filtered.

Specifically, in this embodiment, when the fresh air blower is assembled, the fresh air duct member 200 and the return air duct member 300 are firstly placed into the housing 100 to form the mounting groove 180, then the heat exchange core 600 is placed into the mounting groove 180 under the guidance of the guide portion 240, and then the heat exchange core 600 is fixed by the abutting buckle 193 of the support member 190 to form the fresh air duct and the return air duct.

It should be noted that, in this embodiment, fresh air duct piece 200 return air duct piece 300 with bypass air duct piece 800 is the foam spare, this embodiment fresh air machine has the advantage that the wind channel heat preservation is effectual, whole light in weight, and wind duct piece processing and easy dismounting.

When the fresh air blower described in this embodiment is in operation, the blower part 700 in the fresh air duct operates to draw outdoor air from the fresh air inlet 110 into the fresh air duct in the casing 100, then the outdoor air is filtered by the filter screen 400, then the outdoor air is detected by the sensor assembly 500, and then the outdoor air enters the first air duct of the heat exchange core 600; meanwhile, the fan part 700 in the return air duct draws indoor air into the return air duct from the return air inlet 130, then the air passes through the filter screen 400 in the return air duct and enters the second duct of the heat exchange core 600, and the air flow in the first duct and the air flow in the second duct realize heat exchange in the heat exchange core 600, so that the temperature in the indoor fresh air is closer to the indoor temperature, and the blowing comfort of the fresh air is improved.

In this embodiment, when the outdoor temperature is too low or too high and exceeds the processing range of the heat exchange core 600, the outdoor temperature can be adjusted through the bypass air duct, the valve 821 is opened by the air valve assembly 820, and the bypass air duct directly guides part of the air in the return air duct to the fresh air duct between the fresh air inlet 110 and the heat exchange core 600, so that the fresh air is mixed with the indoor air before entering the heat exchange core 600, and the temperature of the fresh air is closer to the indoor temperature, so as to enter the processing range of the heat exchange core 600. The bypass air duct is matched with the foam air duct piece, so that the probability of condensation in the shell 100 can be reduced.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A new fan, comprising:

a housing having a fresh air inlet;

a heat exchange core disposed in the casing

the sensor assembly is inserted in the jack.

2. The new blower of claim 1, wherein the housing has an opening, the housing including a panel removably covering the opening; the jack is provided with a socket, the socket is arranged on the surface of the fresh air duct piece facing the panel, and the sensor component is inserted into the jack through the socket.

3. The new fan of claim 2, wherein a ventilation opening is formed in a surface, facing the heat exchange core, of the new air duct member, the ventilation opening is communicated with the insertion hole, and the sensor assembly comprises:

the sensor is arranged in the mounting box.

4. The fresh air machine as claimed in claim 3, wherein the outer surface of the mounting box is provided with a lug, the lug is located outside the insertion hole, the lug abuts against the fresh air duct member, the lug is provided with a first screw hole, and the surface of the fresh air duct member facing the panel is provided with a second screw hole matched with the first screw hole.

5. The fresh air machine of claim 3 wherein the mounting box is snap-fit to the sensor.

6. The fresh air machine as claimed in claim 5, wherein the inner surface of the mounting box has a mounting position, the inspection hole is disposed at the mounting position, a plurality of hooks are protruded from the inner surface of the mounting box, the hooks are disposed around the mounting position, free ends of the hooks have barbs, the sensor is disposed at the mounting position, and the barbs abut against a surface of the sensor away from the inspection hole.

7. The new fan as claimed in claim 6, wherein the mounting position is provided with a mounting rib, and the mounting rib abuts against the surface of the sensor close to the detection hole.

8. The new fan as claimed in claim 6, wherein a positioning hole is formed on the sensor, and a positioning column is arranged on the mounting position and penetrates through the positioning hole.

9. The fresh air machine of claim 3 wherein the mounting box comprises:

the sensor box body is internally provided with a sensor;

the box cover is connected with the sensor box body in a buckling mode.

10. The fresh air machine as claimed in claim 3, wherein a wire hole is provided on the mounting box, and a wire of the sensor is extended out of the mounting box through the wire hole.

11. The fresh air machine of any one of claims 3 to 10 wherein the sensor comprises a PM2.5 sensor and/or a humidity sensor.