CN217929190U - Internal circulation air valve and new fan - Google Patents

Abstract

The utility model discloses an internal circulation air valve and a fresh air machine, which relate to the technical field of air treatment equipment, wherein the internal circulation air valve comprises a bracket, a motor and a valve, the bracket is provided with a through air flow channel, one side of the bracket is provided with a mounting seat and a positioning part, and the mounting seat and the positioning part are arranged at intervals; the motor is arranged on the mounting seat, and an output shaft of the motor is arranged towards the positioning part; the valve comprises a rotating shaft part and a door body part which are connected, wherein two ends of the rotating shaft part are respectively connected with the output shaft and the positioning part, so that the door body part opens or closes the airflow channel. The utility model discloses an inner loop blast gate operation is reliable and stable, and the durability is strong, and the assembly of being convenient for.

Description

Internal circulation air valve and new fan

Technical Field

The utility model relates to an air treatment facilities technical field, in particular to inner loop blast gate and new fan.

Background

After the new fan starts the internal circulation mode, the indoor air circulates through the internal circulation air duct, and the internal circulation air valve controls the opening or closing of the internal circulation air duct. However, the internal circulation air valve of the new fan in the related art has a simple structure and poor stability, and is greatly influenced by the fan.

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 an inner loop blast gate, stable in structure is reliable, can realize the switching in inner loop wind channel steadily.

The utility model discloses still provide a new fan that has above-mentioned inner loop blast gate.

According to the utility model discloses internal recycle blast gate of first aspect embodiment includes: the air conditioner comprises a bracket, a fan and a controller, wherein a through air flow channel is formed on the bracket, one side of the bracket is provided with a mounting seat and a positioning part, and the mounting seat and the positioning part are arranged at intervals; the motor is arranged on the mounting seat, and an output shaft of the motor is arranged towards the positioning part; the valve comprises a rotating shaft part and a door body part which are connected, wherein two ends of the rotating shaft part are respectively connected with the output shaft and the positioning part, so that the door body part is opened or closed to the airflow channel.

According to the utility model discloses inner loop blast gate has following beneficial effect at least:

through setting up the support including mount pad and location portion, the motor is installed in the mount pad, and the output shaft and the location portion of motor are connected respectively at the both ends that the valve passes through pivot portion, and the valve can rotate for the support under motor drive, makes the door body portion of valve open or close the airflow channel of support to realize opening or closing of inner loop blast gate, its operation is reliable and stable, and the durability is strong, and the assembly of being convenient for.

According to some embodiments of the present invention, a cavity is formed at an end of the mounting seat away from the positioning portion, and the motor is mounted in the cavity; the mounting seat is further provided with a through hole communicated with the cavity, and the output shaft penetrates through the through hole and is fixedly connected to the end part of the rotating shaft part.

According to some embodiments of the utility model, location portion is the pillar, the tip of pivot portion be equipped with pillar complex draw-in groove.

According to some embodiments of the invention, the door body portion is provided with a first sealing member, the first sealing member being provided at one end of the door body portion in sealing engagement with the bracket.

According to the utility model discloses new fan of second aspect embodiment, including above embodiment the inner loop blast gate.

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

adopt the inner loop blast gate of first aspect embodiment, the inner loop blast gate is through setting up the support including mount pad and location portion, the motor is installed in the mount pad, the output shaft and the location portion of motor are connected respectively to the both ends that the valve passes through pivot portion, the valve can rotate for the support under motor drive, make the door body portion of valve open or close the airflow channel of support, thereby realize opening or closing of inner loop blast gate, its operation is reliable and stable, high durability, and the assembly of being convenient for, the life of new fan has been improved.

According to the utility model discloses a some embodiments, new fan still includes: a housing provided with a fresh air inlet and a return air inlet; the heat exchange core is arranged in the shell; the heat preservation main body is fixedly connected in the shell; the internal circulation air valve is fixedly connected to the heat preservation main body, the internal circulation air valve, the heat preservation main body and the heat exchange core form a fresh air channel communicated with the fresh air inlet and a return air channel communicated with the return air inlet, and the air flow channel is communicated with the fresh air channel and the return air channel; the heat preservation main body comprises an air guide portion located in the return air duct, a communication opening is formed between the air guide portion and the support, and the communication opening can be closed when the door body portion opens the air flow channel.

According to some embodiments of the utility model, the main part that keeps warm is still including being located the support piece in return air wind channel, support piece's one end with the mount pad is connected, the other end with wind-guiding portion connects, support piece wind-guiding portion with the support forms the intercommunication mouth.

According to some embodiments of the utility model, the door body portion orientation the one end of intercommunication mouth is equipped with the second sealing member, door body portion closes when the intercommunication mouth, the second sealing member with support piece with the sealed cooperation of wind-guiding portion.

According to some embodiments of the present invention, the heat preservation main body comprises a bottom plate and a frame connected to the periphery of the bottom plate, the frame comprises a first frame wall and a second frame wall located in the return air duct, the bracket is disposed on the first frame wall, and the air guiding portion is convexly disposed on the second frame wall; the air guide part comprises a first air guide surface and a second air guide surface, the first air guide surface is connected with the first frame wall, the second air guide surface is connected with the second frame wall, and an included angle between the first air guide surface and the first frame wall is a, so that the requirements are met: a is more than or equal to 30 degrees and less than or equal to 60 degrees.

According to some embodiments of the utility model, the heat preservation main part includes the bottom plate and connects the frame on the week edge of bottom plate, frame and bottom plate are equipped with the built-in fitting, the support pass through the fastener with the built-in fitting is connected.

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

Drawings

The invention is further described with reference to the following figures and examples, in which:

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

FIG. 2 is a schematic top view of the fresh air machine shown in FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic structural view of the new air blower shown in FIG. 1 with the heat exchange core, the new air blower and the exhaust air blower removed;

fig. 5 is a schematic structural diagram of an internal circulation air valve according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of the stent of FIG. 5;

FIG. 7 is an exploded view of the internal circulation damper of FIG. 5;

FIG. 8 is a schematic view of another angle of the bracket shown in FIG. 6;

FIG. 9 is a schematic view of another angle of the new fan shown in FIG. 1;

fig. 10 is an enlarged view at B in fig. 9.

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; a frame 210; a bottom plate 211; a bezel 212; a first frame wall 2121; a second frame wall 2122; a first through hole 2123; an embedment 213; a first support part 220; the second support portion 230; the third support portion 240; an air intake duct 250; a fresh air duct 260; an air return duct 270; an exhaust duct 280; a wind guide part 290; a communication port 291; a first air guide surface 292; a second air guide surface 293; a support 294;

a heat exchange core 300;

a fresh air fan 400;

an exhaust fan 500;

an internal circulation air valve 600; a support 610; the airflow channel 611; an inlet 612; a slot 613; a stop strip 614; an introduction groove 615; a valve 620; a rotating shaft portion 621; a door body 622; a first seal 623; a second seal 624; a filter assembly 630; a formaldehyde filter screen 631; a high efficiency filter screen 632; a pull ring 633; a mounting base 640; a cavity 641; a second through hole 642; a motor 650; a pillar 660; a support lug 670;

the fresh air valve 700.

Detailed Description

Reference will now be made in detail to the 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 functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of 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 present invention, such as the upper and lower directions, is the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the new fan according to an embodiment of the present invention includes a casing 100, a heat preservation main body 200, and a heat exchange core 300. The casing 100 is provided with an air inlet 110, a fresh air inlet 120, a return air inlet 130 and an air outlet 140. The heat preservation main part 200 is installed in the casing 100, realizes the whole heat preservation to new fan, effectively avoids the production of condensation. The heat preservation main body 200 can be made of materials such as foam, so that the structure is more stable and reliable, and the processing is more convenient. A core body cavity (not shown in the figure) is formed in the heat preservation main body 200, the heat exchange core body 300 is installed in the core body cavity, and a first heat exchange channel (not shown in the figure) and a second heat exchange channel (not shown in the figure) are arranged in the heat exchange core body 300. The heat preservation main body 200 is formed into a structure matched with the heat exchange core 300, an air inlet duct 250, a fresh air duct 260, a return air duct 270 and an exhaust air duct 280 are respectively formed between the heat preservation main body 200 and the heat exchange core 300, the air inlet duct 250 is communicated with the air inlet 110, the fresh air duct 260 is communicated with the fresh air inlet 120, the return air duct 270 is communicated with the return air inlet 130, the exhaust air duct 280 is communicated with the exhaust outlet 140, so that one end of the first heat exchange channel is communicated with the air inlet 110 through the air inlet duct 250, the other end of the first heat exchange channel is communicated with the fresh air inlet 120 through the fresh air duct 260, one end of the second heat exchange channel is communicated with return air through the return air duct 270, and the other end of the second heat exchange channel is communicated with the exhaust outlet 140 through the exhaust air duct 280.

Referring to fig. 1, the utility model discloses new trend fan 400 is still included with the fan 500 of airing exhaust to the new trend fan of embodiment, and new trend fan 400 is installed in the new trend wind channel 260 of heat preservation main part 200, and the fan 500 of airing exhaust is installed in the wind channel 280 of airing exhaust of heat preservation main part 200. It can be understood that when the fresh air fan starts the fresh air mode, the outdoor air passes through the air inlet 110, the air inlet duct 250, the first heat exchange channel of the heat exchange core 300, the fresh air duct 260, the fresh air fan 400 and the fresh air inlet 120 in sequence and enters the room, as shown by a dashed arrow line P1 in fig. 1, a fresh air path is indicated; the indoor air passes through the return air inlet 130, the return air duct 270, the second heat exchange channel of the heat exchange core 300, the exhaust air duct 280, the exhaust fan 500, and the exhaust outlet 140 in sequence and is discharged to the outside of the room, as shown by a dotted line P2 with an arrow in fig. 1, which indicates an exhaust path. Because new trend can mix the wind through first heat transfer passageway and second heat transfer passageway with airing exhaust to mix outdoor cold air and indoor warm air, and then realize the circulation of indoor outer air, and can effectively avoid the new fan the condition of condensation to appear.

Referring to fig. 1, the fresh air machine of the embodiment of the present invention further includes an internal circulation air valve 600, the internal circulation air valve 600 is fixedly connected to the heat preservation main body 200, and the internal circulation air valve 600 is disposed between the fresh air duct 260 and the return air duct 270. When the new blower is in the internal circulation mode, the indoor air passes through the return air inlet 130, the return air duct 270, the internal circulation air valve 600, the new air duct 260, the new air blower 400 and the new air inlet 120 in sequence and then is discharged out of the room, and the dotted line with an arrow P3 shown in fig. 1 indicates an internal circulation path.

Referring to fig. 1 and 2 and showing, because the fresh air can not pass through heat transfer core 300 when the new fan is in the inner loop mode, consequently can't carry out the heat transfer with outdoor air in heat transfer core 300, consequently the utility model discloses the fresh air fan has carried out the design in order to avoid inside condensation that produces when the inner loop mode. It can be understood that the fresh air machine of the embodiment of the present invention further includes a fresh air valve 700, the fresh air valve 700 is fixedly connected to the air inlet 110, and the fresh air valve 700 is used for controlling the air inlet 110 to open or close. Referring to fig. 2, fig. 3 and fig. 4, the heat preservation main body 200 of the embodiment of the present invention includes a wind guiding portion 290, the wind guiding portion 290 is located in the return air duct 270, a communication port 291 is formed between the wind guiding portion 290 and the internal circulation air valve 600, the internal circulation air valve 600 further includes a support 610 and a valve 620, the support 610 forms an air flow channel 611, two ends of the air flow channel 611 communicate with the fresh air duct 260 and the return air duct 270, the valve 620 is rotatably connected with the support 610 and is used for opening or closing the air flow channel 611, that is, the on-off of the fresh air duct 260 and the return air duct 270 is controlled, and the communication port 291 is opened or closed. When new fan is in the inner loop mode, control valve 620 rotates and opens certain angle, thereby communicate new wind channel 260 and return wind channel 270, and close intercommunication mouth 291, prevent that outdoor air from entering return wind channel 270 from air exit 140, new wind valve 700 closes air intake 110 simultaneously, prevent that outdoor air from entering new wind channel 260 from air intake 110, thereby avoid the indoor air that outdoor air and return wind inlet 130 got into to contact and form the condensation in the inside of new fan, avoid the inside of new fan to produce the comdenstion water and take place the phenomenon of dripping, user experience has been promoted, and prevent that the comdenstion water from causing the damage to electrical control element, the security of new fan has been promoted. When outdoor environment low temperature, the utility model discloses new fan can prevent that cold air from getting into indoorly, makes the indoor temperature reduce, influences user experience.

Referring to fig. 2, 3 and 4, it can be understood that the thermal insulation main body 200 includes a frame 210, the frame 210 includes a bottom plate 211 and a rim 212, and the rim 212 is disposed around the periphery of the bottom plate 211. The bezel 212 includes a first bezel wall 2121 and a second bezel wall 2122 that are connected, the first bezel wall 2121 and the second bezel wall 2122 being disposed within the return air duct 270. The first casing wall 2121 is provided with a first through hole 2123 corresponding to the air return opening 130, and the internal circulation air valve 600 is mounted on the first casing wall 2121 through the bracket 610. The air guide part 290 is disposed on the second frame wall 2122, the air guide part 290 is formed by extending from the second frame wall 2122 to the return air duct 270, and the air guide part 290 can be integrally formed with the bottom plate 211 and the side frame 212. The air guiding portion 290 comprises a first air guiding surface 292 and a second air guiding surface 293, the first air guiding surface 292 is connected with the first frame wall 2121, and the second air guiding surface 293 is connected with the second frame wall 2122, so that air entering the first through hole 2123 can be enabled to smoothly flow into the internal circulation air valve 600 or the heat exchange core 300 under the guiding of the air guiding portion 290, and the air volume loss of the fresh air fan in a fresh air mode and an internal circulation mode is reduced. The communication opening 291 is formed at the connection between the first air guide surface 292 and the second air guide surface 293, so that the matching effect of the communication opening 291 and the valve 620 is facilitated, and the sealing effect of the valve 620 on the communication opening 291 is ensured.

Referring to fig. 3, it can be understood that an included angle a between the first air guiding surface 292 and the first frame wall 2121 is defined as "a", and the included angle a between the first air guiding surface 292 and the first frame wall 2121 satisfies: a is more than or equal to 30 degrees and less than or equal to 60 degrees. When a meets the parameter range, the air volume loss of the return air duct 270 entering the fresh air duct 260 through the internal circulation air valve 600 is small, and the air volume loss of the return air duct 270 entering the exhaust air duct 280 through the heat exchange core 300 is also small, so that good balance can be realized. When the air quantity is smaller than the parameter range, the air quantity loss of the return air duct 270 entering the exhaust air duct 280 through the heat exchange core 300 is large; when the air quantity is larger than the parameter range, the air quantity loss of the return air duct 270 entering the exhaust air duct 280 through the heat exchange core 300 is large.

It can be understood that, as shown by simulation experiments, when the opening angle of the valve 620 is between 50 ° and 90 °, the air enters the internal circulation air valve 600 through the return air duct 270 more smoothly, so that the air volume loss of the air entering the new air duct 260 through the internal circulation air valve 600 is less.

Referring to fig. 3, it can be understood that the first wind guiding surface 292 is connected to the second wind guiding surface 293, an included angle b between the first wind guiding surface 292 and the second wind guiding surface 293 is defined as b, and the included angle b between the first wind guiding surface 292 and the second wind guiding surface 293 satisfies: b is more than or equal to 80 degrees. The embodiment of the utility model provides an in, b satisfies above-mentioned parameter range, and when new fan opened the new trend mode, the air was more smooth and easy at the flow path between intercommunication mouth 291 and heat transfer core 300, can effectively reduce return air wind channel 270's air loss.

It can be understood that, an included angle c between the second air guiding surface 293 and the second frame wall 2122 is defined as c, and the included angle c between the second air guiding surface 293 and the second frame wall 2122 satisfies: c is more than or equal to 120 degrees. The embodiment of the utility model provides an in, c satisfies above-mentioned parameter range, and when new fan opened the new trend mode, the air was more smooth and easy at the flow path between intercommunication mouth 291 and heat transfer core 300, can effectively reduce return air wind channel 270's air loss.

It can be understood that, in the embodiment of the present invention, b and c satisfy the corresponding parameter range simultaneously, can make the air flow path between the communication port 291 and the heat exchange core 300 more smooth, further reduce the air loss of the return air duct 270, promote the air exhaust effect.

Referring to fig. 3, it can be understood that the insulation main body 200 further includes a support 294, one end of the support 294 is connected to the bracket 610 of the internal circulation damper 600, and the other end of the support 294 is connected to the air guide part 290. The supporting member 294 may be connected to the bracket 610 and the wind guide part 290 at both ends thereof in a snap-fit manner, thereby facilitating assembly; in addition, the two ends of the supporting member 294 may be connected to the bracket 610 and the wind guiding portion 290 by fasteners such as screws, or by fasteners 720, which are not limited herein. The supporting member 294 may be made of foam or aluminum, and the supporting member 294, the air guide part 290, the bottom plate 211 and the bracket 610 form a communication port 291. On one hand, the supporting piece 294 plays a supporting role, so that the strength of the connecting 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 new fan is in the internal circulation mode, the supporting member 294 can close the gap between the valve 620 and the top plate (not shown in the figure) of the casing 100, so that the sealing performance of the communication port 291 is better, and the problem that outdoor air enters the return air duct 270 and mixes with indoor air to generate condensation is further avoided.

Referring to fig. 5 and 8, it can be appreciated that the inner circulation damper 600 further includes a mounting seat 640 and a motor 650. The mounting seat 640 is fixedly connected with the bracket 610, and the mounting seat 640 and the bracket 610 can be integrally formed by injection molding. The mount 640 is provided on the upper side of the bracket 610, and a positioning portion is provided on the lower side of the bracket 610 and corresponds to the mount 640 in the vertical direction. The motor 650 is mounted to the mounting base 640, and an output end of the motor 652 is disposed toward the positioning portion. The valve 620 comprises a rotating shaft part 621 and a door body part 622 which are connected, the upper end and the lower end of the rotating shaft part 621 are respectively connected with an output shaft and a positioning part of the motor 650, so that stable connection with the valve 620 is achieved, and the operation of the valve 620 is more stable. The motor 650 is in driving connection with the valve 620, and then drives the valve 620 to rotate relative to the support 610, thereby realizing the opening or closing of the airflow channel 611, having stable and reliable operation and strong durability, and being capable of prolonging the service life of the fresh air machine. It can be understood that, the both ends of pivot portion 621 can set up respectively with motor 650's output shaft and location portion assorted structure to realize with motor 650 and support 610's rapid Assembly, reduce the assembly degree of difficulty, promote assembly efficiency.

Referring to fig. 7 and 8, it can be understood that the positioning part is a pillar 660, the pillar 660 protrudes toward the mounting seat 640, and the mounting seat 640 and the pillar 660 are respectively located at upper and lower ends of the bracket 610. The lower extreme of pivot portion 621 is equipped with draw-in groove (not shown in the figure), and the draw-in groove and pillar 660 joint, and the assembly of the valve 620 of being convenient for reduces the assembly degree of difficulty, improves assembly efficiency, and stable in structure has increased the reliability of inner loop blast gate 600.

Referring to fig. 5, 7 and 8, it can be understood that, in order to further improve the space utilization, a cavity 641 for accommodating the motor 650 is formed inside the mounting base 640, and the cavity 641 is located at the upper end of the mounting base 640 and has an upward opening, so as to facilitate the installation of the motor 650. The mounting base 640 is provided with a second through hole 642 penetrating downwards, and an output shaft of the motor 650 penetrates downwards through the second through hole 642 and is assembled with the end of the rotating shaft 621. The output shaft of the motor 650 may be fast assembled with the rotation shaft 621 by means of clamping or the like. The motor 650 is disposed in the cavity 641, so that the gap between the outer wall surface of the mounting seat 640 and the valve 620 is smaller than the gap between the outer wall surface of the valve 620 and the valve 620, and the sealing performance is better during the fitting process, thereby improving the sealing performance of the internal circulation air valve 600 during the closing process.

Referring to fig. 5, in order to improve the sealing performance of the internal circulation air valve 600 in the closed state, a first sealing member 623 is disposed at one end of the door body 622 where the door body 622 is engaged with the bracket 610, and the first sealing member 623 may be disposed along the periphery of the door body 622 or may cover the end surface of the door body 622, which is not specifically limited herein. Therefore, when the new fan is in the new trend mode, the airflow channel is closed by the door body 622, and the first sealing element 623 is connected with the support 610 in a sealing manner, so that air channeling can not occur between the return air duct 270 and the new air duct 260, and the air exhaust effect of the new fan is ensured.

Referring to fig. 5, it can be understood that, in order to improve the sealing performance of the door body 622 to the communication port 291 formed by the supporting member 294, the air guiding portion 290, the bottom plate 211 and the bracket 610, the second sealing member 624 is disposed at the other end of the door body 622, and the second sealing member 624 may be disposed along the periphery of the door body 622 or cover the end surface of the door body 622, which is not specifically limited herein. Therefore, when the fresh air fan is in the internal circulation mode, the door portion 622 closes the communication port 291, and at this time, the second sealing member 624 is hermetically connected with the air guide portion 290, the supporting member 294 and the like, so that the problem that outdoor air enters the return air duct 270 and is mixed with indoor air to generate condensation is avoided.

In order to solve the problem of the quality reduction of the indoor air in the internal circulation mode of the new fan, referring to fig. 5 and 6, it can be understood that the internal circulation damper 600 according to an embodiment of the present invention further includes a filter assembly 630. The filtering component 630 is arranged in the airflow channel 611 and is used for purifying and filtering the air passing through the airflow channel 611, so that the fresh air machine can purify the indoor air when the internal circulation mode is started, and the comfort of a user is improved.

Referring to fig. 6, it can be understood that one side of the bracket 610 is provided with an introduction port 612, the introduction port 612 communicates with the outside of the bracket 610 and the airflow channel 611, and the filter assembly 630 can be inserted into the airflow channel 611 from the outside of the bracket 610 through the introduction port 612, so that the filter assembly 630 can be installed and replaced. The inner wall of the bracket 610 is provided with a slot 613, the slot 613 is arranged along the circumferential direction of the airflow channel 611, the filter assembly 630 is inserted into the airflow channel 611 from the introduction port 612 and is connected to the slot 613 in a positioning manner, and is stably connected with the bracket 610 under the limiting action of the slot 613, so that the assembly is more reliable, and the installation and replacement can be conveniently realized.

Referring to fig. 6, it can be understood that, in order to simplify the assembly of the filter assembly 630, the inner wall of the bracket 610 is provided with two spaced-apart stopper strips 614, the two stopper strips 614 are spaced-apart in the direction of the air flow channel 611, the insertion groove 613 is formed in the inner wall of the bracket 610 by the two stopper strips 614, and the insertion groove 613 is extended in the insertion direction of the filter assembly 630, so that the filter assembly 630 can be inserted into the air flow channel 611 in a guiding manner.

Referring to fig. 6, it can be understood that the stent 610 is further provided with an introduction groove 615, and the introduction groove 615 is formed at an introduction port 612. The introduction groove 615 is connected to a side of the insertion groove 613 facing the introduction port 612, the introduction groove 615 may be formed by extending the insertion groove 613 to the introduction port 612, and the introduction groove 615 and the insertion groove 613 may be respectively provided at an upper side and a lower side of an inner wall of the holder 610. The introduction groove 615 is formed in a gradually expanding structure, that is, the width of the introduction groove 615 is gradually increased from a direction away from the insertion groove 613, so that the filter assembly 630 can be guided to slide into the insertion groove 613, thereby improving the assembly smoothness of the filter assembly 630, and facilitating the filter assembly 630 to be taken out and replaced.

Referring to fig. 5 and 6, it can be understood that a plurality of filter assemblies 630 are provided, and different types of filter screens, such as a formaldehyde filter screen 631, a high efficiency filter screen 632, an activated carbon filter screen, etc., can be selected according to actual product requirements by the plurality of filter assemblies 630. In order to facilitate replacement of the filter assemblies 630, the bracket 610 is provided with a plurality of inlets 612 and a plurality of slots 613, the plurality of inlets 612 and the plurality of slots 613 are arranged in one-to-one correspondence, each set of inlets 612 and slots 613 corresponds to one filter assembly 630, and the filter assemblies 630 are arranged at intervals along the airflow channel 611, so that the inlets 612 and the slots 613 are also arranged at intervals along the airflow channel 611, thereby enabling the internal circulation air valve 600 to conveniently install and replace the filter assemblies 630.

Referring to fig. 5 and 7, it can be understood that, in order to achieve a better purifying effect on the indoor air, two filter assemblies 630 are provided, and correspondingly, two inlets 612 and two slots 613 are provided. Two filtering component 630 are formaldehyde filter screen 631 and high efficiency filter screen 632 respectively to make formaldehyde and micro-particle in the inner loop blast gate 600 can adsorb the room air, purify and filter the room air, promote the air quality, promote user's experience.

Referring to fig. 7, it can be understood that the formaldehyde filter screen 631 and the high efficiency filter screen 632 are respectively provided with a pull ring 633 at one side facing the corresponding introduction port 612, and the pull ring 633 enables a user to conveniently take out the formaldehyde filter screen 631 and the high efficiency filter screen 632, thereby improving the efficiency of replacing the formaldehyde filter screen 631 and the high efficiency filter screen 632.

Referring to fig. 4, it can be understood that a core cavity for receiving the heat exchange core 300 is formed in the insulation body 200. One side of the bracket 610 is fixedly connected with the heat preservation main body 200, or is fixedly connected with the casing 100 through the heat preservation main body 200, so that the internal circulation air valve 600 is stably fixed. The other end of the stent 610 is provided with an introduction port 612, and the introduction port 612 is communicated with the core body cavity. Therefore, after the user only needs to disassemble the heat exchange core body 300, the core body cavity (such as the space shown by the dotted line in fig. 4) can be exposed, the user can install and replace the filtering component 630 through the space of the core body cavity, the operating space is larger, the operation is simpler and more convenient, the operating difficulty is reduced, and the installing and replacing efficiency is improved. The inlet port 612 communicates with the core lumen.

Referring to fig. 4, it can be understood that the heat preservation main body 200 of the fresh air machine according to the embodiment of the present invention further includes a first supporting portion 220, a second supporting portion 230, and a third supporting portion 240 fixedly connected to the frame 210. The first support part 220, the second support part 230, and the third support part 240 are fixedly coupled to the frame 212, or fixedly coupled to the base plate 211, or both the frame 212 and the base plate 211. The first support part 220, the second support part 230, the third support part 240 and the internal circulation damper 600 are provided at intervals in the circumferential direction of the housing 100, and are connected to the corners of the heat exchange core 300 at the sides facing the core cavity, respectively. The utility model discloses heat transfer core 300 is square form, first supporting part 220, second supporting part 230, third supporting part 240 all is equipped with the sheet metal component (not shown in the figure) that is used for the location towards one side of heat transfer core 300, support 610 of inner loop blast gate 600 is equipped with location structure (not shown in the figure) towards one side of heat transfer core 300, four angles parts of heat transfer core 300 are respectively through the sheet metal component of first supporting part 220, the sheet metal component of second supporting part 230, the sheet metal component of third supporting part 240 and the location structure of support 610 carry on spacingly, thereby realize heat transfer core 300 along circumferential support, make the connection of heat transfer core 300 more reliable, thereby be convenient for the installation and the change of heat transfer core 300.

Referring to fig. 9 and 10, it can be understood that the frame 212 and the base plate 211 are provided with the embedment 213, and the bracket 610 is connected to the embedment 213 by a fastener, thereby achieving stable connection of the internal circulation damper 600 to the insulation main body 200. It can be understood that the embedded part 213 is a metal part, which can increase the strength of the partial region of the insulation main body 200 for connecting the bracket 610, so that the connection of the internal circulation air valve 600 is more reliable, and the durability of the insulation main body 200 is also improved. Referring to fig. 6 and 10, the bracket 610 is provided with support lugs 670 along both ends of the airflow channel 611, the support lugs 670 are also provided at the lower end of the bracket 610, the insulation main body 200 is provided with embedded parts 213 at the areas matched with the three support lugs 670, and the support lugs 670 are connected with the corresponding embedded parts 213 through fasteners, thereby further improving the connection stability of the internal circulation air valve 600.

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 (10)

1. Internal recycle blast gate, its characterized in that includes:

the air conditioner comprises a bracket, a fan and a controller, wherein a through air flow channel is formed on the bracket, one side of the bracket is provided with a mounting seat and a positioning part, and the mounting seat and the positioning part are arranged at intervals;

the motor is arranged on the mounting seat, and an output shaft of the motor is arranged towards the positioning part;

the valve comprises a rotating shaft part and a door body part which are connected, wherein two ends of the rotating shaft part are respectively connected with the output shaft and the positioning part, so that the door body part opens or closes the airflow channel.

2. The internal circulation damper according to claim 1, wherein: a cavity is formed at one end of the mounting seat far away from the positioning part, and the motor is mounted in the cavity; the mounting seat is further provided with a through hole communicated with the cavity, and the output shaft penetrates through the through hole and is fixedly connected to the end part of the rotating shaft part.

3. The internal circulation damper according to claim 1, wherein: the positioning part is a support column, and a clamping groove matched with the support column is arranged at the end part of the rotating shaft part.

4. The internal circulation damper according to claim 1, wherein: the door body part is provided with a first sealing element, and the first sealing element is arranged at one end of the door body part, which is in sealing fit with the bracket.

5. New fan, its characterized in that: comprising an internal circulation damper according to any one of claims 1 to 4.

6. The fresh air machine of claim 5, wherein: the new fan still includes:

a housing provided with a fresh air inlet and a return air inlet;

the heat exchange core is arranged in the shell;

the heat preservation main body is fixedly connected in the shell;

the internal circulation air valve is fixedly connected to the heat preservation main body, the internal circulation air valve, the heat preservation main body and the heat exchange core form a fresh air channel communicated with the fresh air inlet and a return air channel communicated with the return air inlet, and the airflow channel is communicated with the fresh air channel and the return air channel;

the heat preservation main body comprises a wind guide portion located in the return wind channel, a communication opening is formed between the wind guide portion and the support, and the communication opening can be closed when the door body portion opens the airflow channel.

7. The new fan of claim 6, characterized in that: the heat preservation main body further comprises a supporting piece located in the return air duct, one end of the supporting piece is connected with the mounting seat, the other end of the supporting piece is connected with the air guide portion, and the supporting piece, the air guide portion and the support form the communication opening.

8. The fresh air machine of claim 7, wherein: and a second sealing piece is arranged at one end of the door body part facing the communication opening, and when the door body part closes the communication opening, the second sealing piece is in sealing fit with the supporting piece and the air guide part.

9. The fresh air machine of claim 8, wherein: the heat preservation main body comprises a bottom plate and a frame connected with the periphery of the bottom plate, the frame comprises a first frame wall and a second frame wall which are positioned in the return air duct, the support is arranged on the first frame wall, and the air guide part is convexly arranged on the second frame wall; the wind-guiding portion includes first wind-guiding face and second wind-guiding face, first wind-guiding face with first frame wall is connected, the second wind-guiding face with second frame wall is connected, the first wind-guiding face with the contained angle of first frame wall is a, satisfies: a is more than or equal to 30 degrees and less than or equal to 60 degrees.

10. The new fan of claim 6, characterized in that: the heat preservation main body comprises a bottom plate and a frame connected with the periphery of the bottom plate, embedded parts are arranged on the frame and the bottom plate, and the support is connected with the embedded parts through fasteners.

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