CN217979151U

CN217979151U - New fan

Info

Publication number: CN217979151U
Application number: CN202222331776.4U
Authority: CN
Inventors: 何博文
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-06
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a new fan, belonging to the technical field of air conditioning equipment, comprising a shell, a heat exchange core and a heat preservation main body, wherein the shell is provided with an air inlet, a new air inlet, a return air inlet and an air outlet; the heat exchange core body is provided with a first heat exchange channel and a second heat exchange channel; the heat preservation main body adopts an integrated structure, a plurality of supporting parts are integrally formed in the heat preservation main body, and the heat exchange core body can be reliably supported through the plurality of supporting parts; outdoor air gets into indoorly through air intake, first heat transfer passageway and fresh air inlet, indoor air is outdoor through return air inlet, second heat transfer passageway and exhaust exit, outdoor air and indoor air can carry out the heat exchange in the heat transfer core, can realize the recovery of energy when the new trend is taken a breath, the heat preservation main part plays heat preservation and supporting role, need not to assemble, reduce the quantity of part, simplify assembly structure greatly, be favorable to save material cost and mould cost, effectively improve assembly efficiency.

Description

New fan

Technical Field

The utility model belongs to the technical field of air conditioning equipment technique and specifically relates to a new fan is related to.

Background

In the correlation technique, new fan adopts the form of polylith foam concatenation, need paste the sponge between foam and the foam and keep warm, and a plurality of foam material costs and mould cost are higher, and the assembly is also loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a new fan adopts the heat preservation main part of integral type structure to assemble, reduces the part quantity, effectively improves assembly efficiency.

According to the utility model discloses a new fan of first aspect embodiment, include: the heat exchanger comprises a shell, a heat exchange core and a heat insulation main body, wherein the shell is provided with an air inlet, a fresh air inlet, a return air inlet and an air outlet; the heat exchange core body is provided with a first heat exchange channel and a second heat exchange channel; the heat preservation main body is of an integrated structure and is arranged in the shell, a plurality of supporting parts are arranged in the heat preservation main body along the circumferential direction of the shell, and the plurality of supporting parts are connected with the heat exchange core body; the first heat exchange channel is communicated with the air inlet and the fresh air inlet, and the second heat exchange channel is communicated with the air return inlet and the air outlet.

According to the utility model discloses new fan has following beneficial effect at least:

the shell is internally provided with the heat insulation main body which adopts an integrated structure, a plurality of bearing parts are integrally formed in the heat insulation main body, and the heat exchange core body is connected through the bearing parts, so that reliable support can be provided for the heat exchange core body; outdoor air gets into indoorly through air intake, first heat transfer passageway and fresh air inlet, indoor air is outdoor through return air inlet, second heat transfer passageway and exhaust exit, outdoor air and indoor air can carry out the heat exchange in the heat transfer core, can realize the recovery of energy when the new trend is taken a breath, the heat preservation main part plays heat preservation and supporting role, need not to assemble, reduce the quantity of part, simplify assembly structure greatly, be favorable to save material cost and mould cost, effectively improve assembly efficiency.

According to some embodiments of the utility model, an air inlet duct, a fresh air duct, a return air duct and an air exhaust duct are defined in the heat preservation main body, the air inlet duct is communicated with the air inlet and the first heat exchange channel, the fresh air duct is communicated with the fresh air inlet and the first heat exchange channel, the return air duct is communicated with the return air inlet and the second heat exchange channel, and the air exhaust duct is communicated with the air outlet and the second heat exchange channel; the supporting parts are respectively arranged between the air inlet duct and the air return duct, between the air inlet duct and the air exhaust duct, and between the air exhaust duct and the fresh air duct.

According to some embodiments of the utility model, it is a plurality of the bearing part is equipped with the sheet metal component respectively, the sheet metal component is equipped with the constant head tank, the bight of heat transfer core correspond connect with the constant head tank.

According to some embodiments of the invention, the sheet metal part is formed in the support part.

According to some embodiments of the present invention, the heat preservation main body comprises three support parts and an internal circulation air valve, and the internal circulation air valve is disposed between the fresh air duct and the return air duct and connected to the heat exchange core; and when the internal circulation air valve is opened, the air return opening is communicated with the fresh air opening.

According to the utility model discloses a some embodiments, the inner loop blast gate includes valve bracket and valve member, valve bracket is equipped with the intercommunication the new trend wind channel with the inner loop passageway in return air wind channel, the valve member is used for control to open or close inner loop passageway.

According to some embodiments of the utility model, one side of valve bracket with heat preservation main part fixed connection, the opposite side be equipped with the location structure that the bight of heat transfer core is connected.

According to some embodiments of the utility model, be equipped with wind-guiding portion in the return air wind channel, the top of wind-guiding portion be equipped with valve support connected's support piece, support piece wind-guiding portion with the return air passageway is injectd in the valve support cooperation, the valve member includes motor and door plant, the door plant rotate connect in valve support, motor drive the door plant rotates, in order to open can close during the inner loop passageway the return air passageway.

According to the utility model discloses a some embodiments, new fan is still including locating the new trend filter screen in air inlet duct, the sheet metal component is equipped with and is used for fixing the first mounting structure of new trend filter screen.

According to the utility model discloses a some embodiments, new fan is still including locating the filter screen of airing exhaust in return air wind channel, the sheet metal component is equipped with and is used for fixing the second mounting structure of the filter screen of airing exhaust.

According to some embodiments of the utility model, the heat preservation main part is the foam material.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.

Drawings

Fig. 1 is an assembly structure diagram of a fresh air machine according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the heat preservation main body according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating the assembly of the heat preservation main body and the shell according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 6 is an enlarged schematic view of the structure at B in FIG. 4;

FIG. 7 is an enlarged schematic view of the structure at C in FIG. 4;

fig. 8 is an enlarged schematic view of the structure at D in fig. 4.

Reference numerals:

a housing 100; an air inlet 110; a fresh air port 120; an air return opening 130; an air outlet 140;

a heat preservation main body 200; an opening 201; a first mounting location 202; a second mounting location 203; an air inlet duct 204; a fresh air duct 205; an air return duct 206; an exhaust air duct 207; a return air passage 208; a first support part 210; a second support portion 220; the third support portion 230; a wind guide part 240; a fifth card slot 241; a first sheet metal part 250; a first positioning groove 251; a first card slot 252; a third card slot 253; a second sheet metal part 260; a second positioning groove 261; a second card slot 262; a third sheet metal component 270; a third positioning groove 271; a support 280;

a heat exchange core 300;

a fresh air blower 400; a first mounting bracket 410;

an exhaust fan 500; a second mounting bracket 510;

an internal circulation air valve 600; a valve holder 610; a fourth positioning groove 611; a fourth card slot 612; an internal circulation passage 613; a sixth card slot 614; a valve assembly 620; a motor 621; a door panel 622; an internal circulation filter 623;

a fresh air valve 700;

a fresh air filter screen 800;

an exhaust screen 900;

a fresh air machine 1000.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, it should be noted that words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the words in the present invention by combining the specific contents of the technical solution.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the embodiments described below are some, not all embodiments of the present invention.

Referring to fig. 1, the utility model discloses new fan 1000 of embodiment, including casing 100, heat preservation main part 200 and heat exchange core 300, casing 100 is equipped with air intake 110, fresh air inlet 120, return air inlet 130 and air exit 140, and the integral type foam spare that heat preservation main part 200 formed for adopting the foam preparation, and heat preservation main part 200 is installed in casing 100, and heat preservation main part 200 matches with casing 100's inner chamber, makes the bottom surface of heat preservation main part 200 and casing 100's diapire butt, the lateral wall of heat preservation main part 200 and casing 100's inner wall butt. The heat exchanging core 300 is installed in the heat insulating main body 200, and a first heat exchanging channel and a second heat exchanging channel (not shown in the drawing) are provided in the heat exchanging core 300, wherein the first heat exchanging channel is communicated with the air inlet 110 and the fresh air inlet 120, and the second heat exchanging channel is communicated with the air return opening 130 and the air exhaust opening 140.

Referring to fig. 1 and 2, fig. 2 is a schematic view showing an overall structure of a thermal insulation main body 200. It can be understood that the side wall of the thermal insulation main body 200 is provided with four openings 201, and the four openings 201 correspond to the air inlet 110, the fresh air inlet 120, the air return 130 and the air outlet 140 one by one, so that the inner cavity of the thermal insulation main body 200 is communicated with the air inlet 110, the fresh air inlet 120, the air return 130 and the air outlet 140. The inner wall of the thermal insulation main body 200 is provided with a first support part 210, a second support part 220 and a third support part 230 distributed along the circumferential direction of the casing 100. In the embodiment shown in fig. 2, the first support part 210, the second support part 220 and the third support part 230 are sequentially distributed on three side walls of the heat preservation main body 200, the first support part 210, the second support part 220 and the third support part 230 are all connected with the heat exchange core 300, the first support part 210, the second support part 220 and the third support part 230 are matched to play a limiting role, reliable support can be provided for the heat exchange core 300, and the temperature difference between the housing 100 and the indoor air can be reduced through the heat preservation main body 200, so that the generation of condensation can be reduced; it can be understood that the thermal insulation body 200 serves both thermal insulation and support without adding an additional support member. The foam member of the embodiment may be made of Expanded Polystyrene (EPS) foam, expanded polypropylene (EPP) and the like, and has characteristics of shock resistance, heat insulation and the like, and the material of the heat insulation main body 200 is not limited to foam, and may be made of heat insulation cotton and the like.

The first support part 210, the second support part 220, and the third support part 230 are formed to protrude from the inner wall of the thermal insulation main body 200, and are formed integrally with the thermal insulation main body 200, so that structural strength can be improved, and it is not necessary to add a reinforcing member between each support part and the thermal insulation main body 200. It can be understood that the first support part 210, the second support part 220 and the third support part 230 cooperate to define a first installation position 202 matched with the heat exchange core 300, the heat exchange core 300 can be assembled in the first installation position 202, the bottom of the heat preservation main body 200 is provided with an installation opening corresponding to the first installation position 202, and the heat exchange core 300 is assembled in the first installation position 202 through the installation opening; the size of the first mounting position 202 can be adjusted by changing the positions and the protruding sizes of the first support part 210, the second support part 220 and the third support part 230, so that the heat exchange core 300 with different shapes and sizes can be matched. Directly assemble the casing 100 with heat preservation main part 200 during the installation in, heat exchange core 300 assembles first installation position 202, and is easy and simple to handle, heat preservation main part 200 need not the concatenation, for the structure of adopting the foam concatenation among the correlation technique, utilize the integral type foam spare can effectively solve the condensation phenomenon because of sealed not enough leading to between the foam, have enough high intensity, reduce the quantity of part, be favorable to save material cost and mould cost, simplify the assembly structure greatly, reduce the man-hour that the assembly consumed, effectively improve assembly efficiency.

Referring to fig. 1, it can be understood that the new air blower 1000 further includes a new air blower 400 and an exhaust air blower 500, the new air blower 400 and the exhaust air blower 500 are both installed in the insulation main body 200, the air inlet 110, the first heat exchange channel and the new air inlet 120 are communicated, the air return 130, the second heat exchange channel and the air outlet 140 are communicated, the new air blower 400 is disposed in the new air duct 205, and the exhaust air blower 500 is disposed in the exhaust air duct 207. The air inlet 110 and the air outlet 140 are arranged at one side of the casing 100, the air return opening 130 and the fresh air opening 120 are arranged at the other side of the casing 100, the air inlet 110 and the air outlet 140 can be communicated with an outdoor environment through an air pipe, the air return opening 130 and the fresh air opening 120 can be communicated with an indoor environment through an air pipe, and outdoor air is sucked from the air inlet 110 by the fresh air fan 400 and enters a room through the first heat exchange channel and the fresh air opening 120 when the air conditioner works; the exhaust fan 500 sucks the indoor air from the return air inlet 130, and exhausts the indoor air to the outside through the second heat exchange channel and the exhaust outlet 140, so that the fresh air is introduced into the room, and meanwhile, the indoor dirty air is exhausted to the outside, and the indoor air quality is improved; outdoor air and indoor air can carry out the heat exchange in heat transfer core 300, and outdoor air absorbs the heat of indoor air and sends back to indoor, can realize the recovery of energy when the new trend is taken a breath, reduces indoor air conditioning's load.

Referring to fig. 3 and 4, it should be noted that the fresh air fan 400 and the exhaust air fan 500 are both centrifugal fans, a first mounting bracket 410 for mounting the fresh air fan 400 is disposed in the fresh air duct 205, a second mounting bracket 510 for mounting the exhaust air fan 500 is disposed in the exhaust air duct 207, and a connecting member such as a screw can be used to penetrate through the bottom wall of the heat insulation main body 200 to fixedly connect the first mounting bracket 410 and the second mounting bracket 510 to the bottom plate of the casing 100. It can be understood that the heat preservation main body 200 plays a role in buffering, can absorb the vibration generated in the operation process of the fresh air fan 400 and the exhaust air fan 500, and improves the operation stability.

Referring to fig. 1 and fig. 2, the utility model discloses inject air inlet duct 204, new wind channel 205, return air duct 206 and air exhaust duct 207 in the heat preservation main part 200 of the embodiment, air inlet duct 204 intercommunication air intake 110 and first heat transfer passageway, new wind channel 205 intercommunication new wind port 120 and first heat transfer passageway, return air duct 206 intercommunication return air port 130 and second heat transfer passageway, air exhaust duct 207 intercommunication air exit 140 and second heat transfer passageway. The heat exchange core 300 is positioned in the middle of the heat preservation main body 200, the air inlet duct 204, the fresh air duct 205, the return air duct 206 and the air exhaust duct 207 are distributed along the circumferential direction of the heat exchange core 300, the fresh air fan 400 is installed in the fresh air duct 205, and the air exhaust fan 500 is installed in the air exhaust duct 207; outdoor air sequentially passes through the air inlet 110, the air inlet duct 204, the first heat exchange channel, the fresh air duct 205 and the fresh air inlet 120 to enter the room, and indoor air sequentially passes through the air return inlet 130, the air return duct 206, the second heat exchange channel, the air exhaust duct 207 and the air outlet 140 to be exhausted out of the room, so that the outdoor air and the indoor air respectively carry out fresh air ventilation along independent air ducts, the whole structure is compact, the miniaturized design of the shell 100 can be realized, and the adaptability of an installation scene is improved.

Referring to fig. 1, the new fan 1000 of the embodiment of the present invention further includes an internal circulation air valve 600, the internal circulation air valve 600 is fixed in the heat preservation main body 200, the internal circulation air valve 600 is located between the return air duct 206 and the new air duct 205, the first supporting portion 210 is located between the inlet air duct 204 and the return air duct 206, the second supporting portion 220 is located between the inlet air duct 204 and the exhaust air duct 207, and the third supporting portion 230 is located between the exhaust air duct 207 and the new air duct 205. The heat preservation main part 200 is equipped with the second installation position 203 that matches with inner loop blast gate 600, installs first installation position 202 back at heat exchange core 300, inserts inner loop blast gate 600 into second installation position 203, carries on spacingly to inner loop blast gate 600 through heat exchange core 300, makes heat exchange core 300 obtain fixed, and the simple installation, structural design is more reasonable.

It is understood that in some embodiments, in the case that the internal circulation air valve 600 does not need to be installed, a fourth support portion (not shown in the drawings) may be disposed in the heat preservation main body 200, the return air duct 206 is separated from the fresh air duct 205 by the fourth support portion, and the specific structure of the fourth support portion may refer to the structures of the first support portion 210, the second support portion 220, and the third support portion 230 in the above embodiments, and will not be described in detail.

Referring to fig. 1, it can be understood that the fresh air fan 1000 of the embodiment further includes a fresh air valve 700, the fresh air valve 700 is disposed in the intake duct 204, and the fresh air valve 700 is used for opening or closing the intake vent 110. When the fresh air mode is started, the fresh air valve 700 is opened, the internal circulation air valve 600 is closed, the return air duct 206 is not communicated with the fresh air duct 205, fresh air is introduced from the outside by the fresh air fan 400, indoor dirty air is discharged by the exhaust air fan 500, heat exchange is carried out through the heat exchange core 300, and indoor air is in a fresh state. When ventilation is not needed or outdoor air is polluted, the new air fan 1000 opens the internal circulation mode, the internal circulation air valve 600 opens, the return air duct 206 and the new air duct 205 are communicated through the internal circulation channel 613 of the internal circulation air valve 600, the internal circulation air valve 600 can control the return air duct 206 to be closed, the new air valve 700 controls the air inlet 110 to be closed, outdoor air cannot enter a room, indoor air flows back to the room through the return air inlet 130, the internal circulation air valve 600 and the new air inlet 120, circulation flow of the indoor air is achieved, the indoor air is filtered by the internal circulation filter screen 623 of the internal circulation air valve 600, the indoor air can be filtered and purified during circulation flow, and accordingly indoor air quality is improved.

Referring to fig. 3 and 4, it can be understood that the side of the first supporting part 210 facing the heat exchanging core 300 is provided with a first sheet metal part 250, the side of the second supporting part 220 facing the heat exchanging core 300 is provided with a second sheet metal part 260, the side of the third supporting part 230 facing the heat exchanging core 300 is provided with a third sheet metal part 270, and the first sheet metal part 250, the second sheet metal part 260 and the third sheet metal part 270 are all connected with the heat exchanging core 300. First sheet metal component 250, second sheet metal component 260 and third sheet metal component 270 are favorable to improving the structural strength who corresponds the bearing portion position, make each bearing portion more reliable and more stable to heat exchange core 300's bearing structure.

Referring to fig. 3 and 4, it should be noted that, in the embodiment of the present invention, the first sheet metal part 250 is connected to the first supporting portion 210 through a screw, the second sheet metal part 260 is connected to the second supporting portion 220 through a screw, and the third sheet metal part 270 is connected to the third supporting portion 230 through a screw, so that the first sheet metal part 250, the second sheet metal part 260, and the third sheet metal part 270 are all effectively fixed. The first sheet metal part 250 and the first supporting part 210 are taken as examples for explanation, the first sheet metal part 250 is integrally formed, the first sheet metal part 250 is matched with the side surface of the first supporting part 210, a plurality of corresponding screw holes are respectively arranged on the first sheet metal part 250 and the first supporting part 210, the screw holes are distributed along the height direction of the shell 100, and screws are utilized to penetrate through the screw holes of the first sheet metal part 250 and the first supporting part 210, so that the first sheet metal part 250 is attached to and fastened on the side surface of the first supporting part 210.

In some embodiments, the first sheet metal part 250, the second sheet metal part 260, and the third sheet metal part 270 may also be integrally formed with the insulation main body 200 by foaming, so that the first sheet metal part 250, the second sheet metal part 260, and the third sheet metal part 270 may be correspondingly embedded in the first support portion 210, the second support portion 220, and the third support portion 230, thereby reducing the assembly processes of the first sheet metal part 250, the second sheet metal part 260, and the third sheet metal part 270.

Referring to fig. 5, fig. 6 and fig. 7, it can be understood that the first sheet metal part 250, the second sheet metal part 260 and the third sheet metal part 270 cooperate to define the first mounting position 202, and the first sheet metal part 250, the second sheet metal part 260 and the third sheet metal part 270 all extend along the height direction of the casing 100, specifically extend from the bottom wall of the casing 100 to the top wall of the casing 100, so that the first sheet metal part 250, the second sheet metal part 260 and the third sheet metal part 270 serve as stressed components of the heat preservation main body 200, can play a role in supporting the heat exchange core 300 and the casing 100, and are beneficial to improving the overall structural strength of the fresh air fan 1000.

Referring to fig. 5, 6 and 7, the first sheet metal part 250 is integrally formed with a first positioning groove 251, the second sheet metal part 260 is integrally formed with a second positioning groove 261, the third sheet metal part 270 is integrally formed with a third positioning groove 271, and the first positioning groove 251, the second positioning groove 261 and the third positioning groove 271 all extend in the height direction of the housing 100. As can be understood from fig. 1, the heat exchange core 300 is a square body as a whole, and the heat exchange core 300 has four corners along the circumferential direction, and the four corners can also be understood as four corners, wherein three corners are correspondingly clamped in the first positioning groove 251, the second positioning groove 261 and the third positioning groove 271. The heat exchanging core 300 is also called a total heat exchanger, and includes four sides, which correspond to the air inlet duct 204, the fresh air duct 205, the air return duct 206, and the air exhaust duct 207 one-to-one, wherein two sides corresponding to the air inlet duct 204 and the fresh air duct 205 are respectively provided with an inlet and an outlet of a first heat exchanging channel, two sides corresponding to the air return duct 206 and the air exhaust duct 207 are respectively provided with an inlet and an outlet of a second heat exchanging channel, and the first heat exchanging channel and the second heat exchanging channel are arranged in the heat exchanging core 300 in a crossing manner, so that the outdoor air and the indoor air can exchange heat in the heat exchanging core 300.

It can be understood that the corners of the heat exchange core 300 are right angles, and the right-angle side of each corner can abut against the side walls of the first positioning groove 251, the second positioning groove 261 and the third positioning groove 271, so as to limit the position. The first positioning groove 251, the second positioning groove 261, and the third positioning groove 271 also have a guiding function in the height direction of the housing 100. During the installation, heat exchange core 300 inserts in first installation position 202 from the upper end or the lower extreme of first constant head tank 251, second constant head tank 261 and third constant head tank 271 along the direction of height to make in heat exchange core 300 can the rapid Assembly new fan 1000, assembly efficiency is high. It should be noted that the top of the casing 100 is provided with a top plate (not shown in the drawings), the top plate can be provided with an access hole and a cover plate covering the access hole, the access hole corresponds to the mounting hole, and the access hole can be opened or closed through the cover plate, so that the heat exchange core 300 can be replaced and maintained conveniently. In some embodiments, an access hole and a cover plate can be arranged on the bottom plate of the shell 100 at the same time, so that when the new fan 1000 is hoisted, the heat exchange core body 300 can be conveniently overhauled regardless of whether the top plate faces upwards or the bottom plate faces upwards. In addition, a foam board (not shown in the figure) is disposed between the heat insulation main body 200 and the top plate of the casing 100, and the foam board can cover the air inlet duct 204, the fresh air duct 205, the return air duct 206 and the air exhaust duct 207, so as to improve the heat insulation performance.

Referring to fig. 1, the fresh air fan 1000 further includes a fresh air filter screen 800 and an exhaust filter screen 900, the fresh air filter screen 800 is disposed in the air intake duct 204, the exhaust filter screen 900 is disposed in the air return duct 206, the first sheet metal part 250 and the second sheet metal part 260 are provided with first mounting structures, the first sheet metal part 250 and the internal circulation air valve 600 are provided with first mounting structures, the fresh air filter screen 800 is fixed to the first mounting structure, and the exhaust filter screen 900 is fixed to the second mounting structure; specifically, the first sheet metal part 250 is provided with a first clamping groove 252 and a third clamping groove 253, the second sheet metal part 260 is provided with a second clamping groove 262, and the internal circulation air valve 600 is provided with a fourth clamping groove 612, wherein the first clamping groove 252 and the second clamping groove 262 are located in the air inlet duct 204, one end of the fresh air filter screen 800 is fixed at the first clamping groove 252, and the other end of the fresh air filter screen 800 is fixed at the second clamping groove 262, so that the fresh air filter screen 800 is fixed in the air inlet duct 204; the third engaging groove 253 and the fourth engaging groove 612 are located in the return air duct 206, one end of the exhaust filter 900 is fixed to the third engaging groove 253, and the other end of the exhaust filter 900 is fixed to the fourth engaging groove 612, so that the exhaust filter 900 is fixed in the return air duct 206.

Referring to fig. 1, it can be understood that when the fresh air mode is started, the outdoor air sequentially passes through the air inlet 110, the fresh air valve 700, the fresh air filter screen 800, the first heat exchange channel, the fresh air fan 400 and the fresh air port 120 and then enters the room, the fresh air filter screen 800 can filter the outdoor air, so that the fresh air entering the room is cleaner, and a dotted line P1 with an arrow in fig. 1 indicates a fresh air path; the indoor air passes through the return air inlet 130, the exhaust filter screen 900, the second heat exchange channel, the exhaust fan 500 and the exhaust outlet 140 in sequence and is discharged to the outside, and a dotted line P2 with an arrow shown in fig. 1 indicates an exhaust path. Because outdoor air and room air all get into heat exchange core 300 after filtering, dust, impurity etc. in the filterable air reduce the pollution to heat exchange core 300, are favorable to improving heat exchange core 300's life. The fresh air filter screen 800 can be a high-efficiency filter screen, so that the indoor air has higher cleanliness; the exhaust filter 900 may be a primary filter, which can effectively filter contaminants such as dust particles in the air, and the form of the fresh air filter 800 and the exhaust filter 900 is not particularly limited.

Referring to fig. 2, fig. 3 and fig. 4, the utility model discloses inner loop blast gate 600 of embodiment includes valve support 610 and installs in valve member 620 of valve support 610, valve support 610 adopts the plastics material preparation, the inner wall of heat preservation main part 200 is injectd second installation position 203, valve support 610 matches with second installation position 203, one side joint in second installation position 203 of valve support 610, the opposite side of valve support 610 is equipped with the location structure of being connected with the bight of heat exchange core 300, this location structure is fourth constant head tank 611 in the embodiment, valve support 610 passes through fourth constant head tank 611 joint in heat exchange core 300, thereby make valve support 610 can fix between return air duct 206 and new air duct 205. In addition, the fourth locking groove 612 is disposed at a position of the valve bracket 610 close to the fourth positioning groove 611, both the fourth locking groove 612 and the fourth positioning groove 611 extend along the height direction of the valve bracket 610, and after the valve bracket 610 is assembled in place, the exhaust filter screen 900 is fixed by the cooperation of the fourth locking groove 612 and the third locking groove 253.

Referring to fig. 3 and 4, it can be understood that an internal circulation passage 613 is defined in the valve bracket 610, the valve assembly 620 includes a motor 621, a door panel 622 and an internal circulation filter 623, the door panel 622 is connected to the motor 621 through a rotating shaft, the motor 621 can drive the door panel 622 to rotate around the rotating shaft, so that the door panel 622 can open or close the internal circulation passage 613, the internal circulation filter 623 is disposed in the internal circulation passage 613, when the door panel 622 is opened, the return air inlet 130 and the fresh air inlet 120 are communicated through the internal circulation passage 613 to form an internal circulation air duct, the indoor air circularly flows through the internal circulation air duct, and the indoor air is filtered through the internal circulation filter 623, as can be understood in conjunction with fig. 1, a dotted line P3 with an arrow shown in fig. 1 indicates an air supply path of the internal circulation, and the internal circulation filter 623 can be a high-efficiency filter, a formaldehyde-removing filter, etc., so as to effectively improve the quality of the indoor air.

Referring to fig. 4 and 8, it can be understood that a wind guide portion 240 is disposed in the return wind duct 206, the wind guide portion 240 protrudes from the inner wall of the heat preservation main body 200 and extends along the height direction of the shell 100, the top end of the wind guide portion 240 is connected to the valve bracket 610 through the support member 280, the wind guide portion 240 and the valve bracket 610 cooperate to define a return wind channel 208, and the return wind channel 208 is located between the return wind opening 130 and the heat exchange core 300. When the fresh air blower 1000 is in the internal circulation mode, the motor 621 drives the door panel 622 to open the internal circulation channel 613, and further drives the door panel 622 to rotate by a certain angle to the return air channel 208, so that the door panel 622 closes the return air channel 208, that is, the motor 621 drives the lower door panel 622 to switch from the position of the internal circulation channel 613 to the position of the return air channel 208, at this time, the indoor air is not discharged outdoors, and the fresh air valve 700 closes the air inlet 110, so that the indoor air circularly flows along the internal circulation air channel.

Referring to fig. 8, it should be noted that, in the embodiment of the present invention, a fifth engaging groove 241 is disposed at a position, close to the valve holder 610, of the top end of the air guiding portion 240, a sixth engaging groove 614 is disposed at a position, close to the air guiding portion 240, of the top end of the valve holder 610, and two ends of the supporting member 280 are respectively engaged with the fifth engaging groove 241 and the sixth engaging groove 614, so that the supporting member 280 is fixed. The supporting member 280 may be made of foam or aluminum profile, and the supporting member 280 plays a supporting role on one hand, so that the strength of the connection structure of the internal circulation air valve 600 can be improved, and the internal circulation air valve 600 is more stable and reliable; on the other hand, when the door panel 622 closes the return air duct 208, the supporting member 280 can block the gap between the door panel 622 and the top plate of the casing 100, so that the problem that condensation is easily generated when indoor air is discharged along the gap is reduced, and the structure is practical and reliable.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. New fan, its characterized in that includes:

the shell is provided with an air inlet, a fresh air inlet, a return air inlet and an air outlet;

the heat exchange core body is provided with a first heat exchange channel and a second heat exchange channel;

the heat preservation main body is of an integrated structure and is arranged in the shell, a plurality of supporting parts are arranged in the heat preservation main body along the circumferential direction of the shell, and the plurality of supporting parts are connected with the heat exchange core body; the first heat exchange channel is communicated with the air inlet and the fresh air inlet, and the second heat exchange channel is communicated with the air return inlet and the air outlet.

2. The new fan according to claim 1, wherein an air inlet duct, a new air duct, a return air duct and an air exhaust duct are defined in the heat preservation main body, the air inlet duct is communicated with the air inlet and the first heat exchange channel, the new air duct is communicated with the new air inlet and the first heat exchange channel, the return air duct is communicated with the return air inlet and the second heat exchange channel, and the air exhaust duct is communicated with the air outlet and the second heat exchange channel; the supporting parts are respectively arranged between the air inlet duct and the air return duct, between the air inlet duct and the air exhaust duct, and between the air exhaust duct and the fresh air duct.

3. The new fan according to claim 2, wherein a plurality of the supporting portions are respectively provided with a sheet metal part, the sheet metal part is provided with positioning grooves, and the corners of the heat exchange core body are correspondingly connected with the positioning grooves.

4. The fresh air machine of claim 3 wherein said sheet metal member is formed into said support portion.

5. The new fan of claim 2, wherein the insulation main body comprises three support parts and an internal circulation air valve, and the internal circulation air valve is arranged between the new air duct and the return air duct and connected with the heat exchange core body; and when the internal circulation air valve is opened, the air return opening is communicated with the fresh air opening.

6. The fresh air machine as claimed in claim 5, wherein the internal circulation air valve comprises a valve bracket and a valve assembly, the valve bracket is provided with an internal circulation channel for communicating the fresh air duct and the return air duct, and the valve assembly is used for controlling the opening or closing of the internal circulation channel.

7. The new fan of claim 6, characterized in that, one side of the valve bracket is fixedly connected with the heat preservation main body, and the other side is provided with a positioning structure connected with the corner of the heat exchange core body.

8. The fresh air machine as claimed in claim 7, wherein a wind guide part is arranged in the return wind channel, a support part connected with the valve support is arranged at the top end of the wind guide part, the support part, the wind guide part and the valve support cooperate to define a return wind channel, the valve assembly comprises a motor and a door plate, the door plate is rotatably connected with the valve support, and the motor drives the door plate to rotate so as to close the return wind channel when the internal circulation channel is opened.

9. The fresh air machine of claim 3 further comprising a fresh air filter screen disposed in the air inlet duct, wherein the sheet metal component is provided with a first mounting structure for fixing the fresh air filter screen.

10. The fresh air machine as claimed in claim 3, further comprising an exhaust filter screen disposed in the return air duct, wherein the sheet metal part is provided with a second mounting structure for fixing the exhaust filter screen.

11. The new fan according to any one of claims 1 to 10, wherein the heat preservation body is made of foam.