CN215597613U

CN215597613U - Wall-mounted fresh air fan

Info

Publication number: CN215597613U
Application number: CN202121944023.XU
Authority: CN
Inventors: 麦礼聪; 朱建荣; 唐文锋
Original assignee: Guangdong Amx Electric Appliances Co ltd
Current assignee: Guangdong Amx Electric Appliances Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-21
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a wall-mounted fresh air fan which comprises a shell, a fan assembly, a filtering assembly and an air valve assembly. The shell is the shell of the fresh air fan, the shell is provided with a ventilation channel, and the specific arrangement of the shell is determined according to the actual condition; the fan assembly adopts a bidirectional motor and a turbofan blade, the bidirectional motor can rotate bidirectionally, so that the wall-mounted fresh air machine can supply fresh air to the indoor and discharge sewage to the outdoor, and the wall-mounted fresh air machine can switch a fresh air mode and an air exhaust mode through continuous circulation so as to improve the effective indoor air exchange efficiency; the filtering component mainly plays a role in filtering; the air valve assembly is used for controlling the automatic closing or automatic opening of the ventilation channel so as to achieve the effect of cutting off the indoor air alternate switching, and the structure is simple.

Description

Wall-mounted fresh air fan

Technical Field

The utility model relates to the technical field of air port structures, in particular to a wall-mounted fresh air machine.

Background

The new fan of hanging is more and more favored by the market as solving the product of the indoor environment of little space such as room, in order to further satisfy user's demand, when not using, need seal or open the wind gap of new fan, and the wind gap on the market has set up motor control wind gap closure at present, but its structure is complicated, bulky, occupation space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wall-mounted fresh air fan, which aims to solve one or more technical problems in the prior art and at least provides a beneficial choice or creation condition.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a wall-mounted fresh air fan which comprises a shell, a fan assembly, a filtering assembly and an air valve assembly. The casing is provided with a ventilation channel; the air valve assembly comprises a fixed valve plate, a rotary valve plate and a rotary driving mechanism, wherein the fixed valve plate is provided with a first vent hole penetrating through two side surfaces of the fixed valve plate; the rotary valve plate is provided with a rotary axis, a second vent hole and a shielding part, the rotary valve plate is rotatably arranged around the rotary axis relative to the fixed valve plate, the rotary valve plate is arranged on one side of the fixed valve plate, the second vent hole and the shielding part are arranged at intervals in an annular shape by taking the rotary axis as a circle center, and the first vent hole is arranged on a rotary track of the second vent hole and the shielding part; the rotary driving mechanism comprises an arc-shaped rack, a gear and a driving unit, the arc-shaped rack is fixed on the rotary valve plate, the arc center of the arc-shaped rack is coaxial with the rotary axis, the driving unit is relatively fixed with the fixed valve plate, the gear is meshed with the arc-shaped rack, and the driving unit is provided with an output shaft coaxially connected with the gear; the fan assembly, the air valve assembly and the filtering assembly are arranged in the ventilation channel at intervals.

The utility model has the beneficial effects that:

the fan assembly is used for arranging the wall-mounted fresh air fan with the air valve assembly, and when outdoor air is used for supplying fresh air to the indoor space and discharging dirt air to the outdoor space through the fan assembly, the filtering assembly and the air valve assembly, the air valve assembly controls the ventilation channel to be opened; when the wall-mounted fresh air fan stops sending fresh air to the indoor space and discharging the air to the outdoor space, the air valve assembly controls the ventilation channel to be closed, and indoor air is prevented from being alternately switched.

The specific control principle of the air valve assembly is as follows:

the driving unit controls the rotary valve plate to rotate around the rotation axis relative to the fixed valve plate through the matching of the gear and the arc-shaped rack, so that the first vent hole and the second vent hole are controlled to be overlapped or not completely overlapped, and the purpose of sealing the air opening or opening the air opening is achieved. And the air inlet volume can be accurately controlled through the overlapping degree of the first vent hole and the second vent hole. In addition, the rotary valve plate is arranged relative to the fixed valve plate, so that the occupied space is small, the structure is simple, the driving unit is arranged beside the rotary valve plate, the driving unit is convenient to fix, and the structure is further simplified.

As a further improvement of the technical scheme, the rotary valve plate is rotatably arranged on the fixed valve plate, so that the rotary valve plate is more stable in rotation.

As a further improvement of the technical scheme, the number of the second vent holes and the shielding parts is multiple, the second vent holes are divided into a plurality of vent groups, the plurality of vent groups are arranged in a radial annular interval mode by taking the rotation axis as a circle center, the plurality of second vent holes in each group of vent groups are arranged in an interval mode from inside to outside along the radial direction of the rotary valve plate, the plurality of shielding parts are a plurality of shielding groups, the plurality of shielding groups are arranged in a radial annular interval mode by taking the rotation axis as a circle center, the plurality of shielding parts in each group of shielding groups and the plurality of second vent holes in each group of vent groups are arranged in sequence in an interval mode from inside to outside along the radial direction of the rotary valve plate, and the arrangement of the plurality of first vent holes and the plurality of second vent holes is the same.

The second vent holes are regularly distributed, so that the second vent holes are distributed on the rotary valve plate as much as possible, and the fixed valve plate is fully and reasonably utilized. And the second ventilation holes are regularly arranged, so that air inlet can be more uniform, and larger garbage can be prevented from entering the ventilation device.

As a further improvement of the technical scheme, the second ventilation holes are of arc-shaped hole structures, and the radians of the second ventilation holes in each group of the ventilation hole groups are gradually increased from inside to outside, so that the ventilation area is further increased.

As the further improvement of the technical scheme, the fixed valve plate is provided with the reinforcing ribs, so that the strength of the fixed valve plate is increased.

As a further improvement of the technical scheme, the fixed valve plate is provided with a limiting block, and the limiting block is arranged on a rotating track of the end part of the arc-shaped rack.

The limiting block can block the further rotation motion of the arc-shaped rack, and a certain blocking effect is achieved.

As a further improvement of the technical scheme, two ends of the ventilation channel are divided into a first air port and a second air port, a face cover is fixed to the first air port in a magnetic attraction mode, and a plurality of third air holes are formed in the face cover.

Set up the face lid and mainly play pleasing to the eye effect, and the face lid is through dismantling the maintenance back, and easy fixed shakiness receives wind-force effect and produces the noise, consequently fixes on first wind gap through the mode of magnetism and inhale, and is fixed firm, simple to operate reduces because the noise of fixed shakiness production.

As a further improvement of the technical scheme, the second air port is provided with an external air inlet and outlet structure, and the external air inlet and outlet structure comprises a filter plate and a rain cover. Rain-proof cover prevents that rain from advancing new fan, and the filter prevents that big debris from getting into the fan, is favorable to new fan's normal operating.

As the further improvement of the technical scheme, the filter plate covers the lower part of the second air port, the rain cover covers the upper part of the second air port, and materials of the filter plate are saved.

As above-mentioned technical scheme's further improvement, filter and rain-proof cover an organic whole set up, and rain-proof cover is the hemisphere cover body, and rain-proof cover surface is the curved surface, therefore rain-proof cover is difficult to pile up rubbish.

As a further improvement of the technical scheme, the driving unit is a stepping motor which has a self-locking function, so that the automatic air opening closing structure is controlled more stably.

Drawings

The utility model is further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural view of a wall-mounted fresh air blower provided by the utility model;

fig. 2 is a schematic view of an angular explosion structure of an embodiment of a wall-mounted fresh air blower according to the present invention, wherein two arrows respectively indicate a forward direction and a backward direction;

fig. 3 is a schematic diagram of an explosion structure at another angle of an embodiment of the wall-mounted fresh air fan provided by the present invention, wherein two arrows respectively indicate a forward direction and a backward direction;

fig. 4 is a schematic view of an angular explosion structure of a wind valve assembly in an embodiment of the wall-mounted fresh air fan, wherein two arrows respectively show a forward direction and a backward direction;

fig. 5 is a schematic view of an angular explosion structure of a wind valve assembly in an embodiment of the wall-mounted fresh air fan, wherein two arrows respectively show a forward direction and a backward direction;

fig. 6 is a schematic view of an exploded structure of another angle of the air valve assembly in an embodiment of the wall-mounted fresh air fan, wherein two arrows respectively show a forward direction and a backward direction;

FIG. 7 is an enlarged view of A in FIG. 6;

fig. 8 is an enlarged view of B in fig. 6.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

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, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 8, a wall-mounted fresh air blower according to the present invention includes the following embodiments:

in some embodiments, referring to fig. 1 to 3, a wall-mounted fresh air fan includes a cabinet 100, a fan assembly 200, a filter assembly 300, and an air valve assembly 400. The casing 100 is a shell of a fresh air machine, the casing 100 is provided with a ventilation channel 110, and the specific arrangement of the casing 100 is determined according to actual conditions; the fan assembly 200 adopts a bidirectional motor 210 and a turbofan blade 220, the bidirectional motor 210 can rotate bidirectionally, so that the wall-mounted fresh air machine can supply fresh air to the indoor and discharge the fresh air to the outdoor, and the wall-mounted fresh air machine can switch a fresh air mode and an air exhaust mode through continuous circulation so as to improve the effective indoor air exchange efficiency; the filter assembly 300 mainly plays a role of filtering, and in this embodiment, the filter screen 310 is used for filtering. It should be noted that, the filter assembly 300 is not limited in this embodiment, and in other embodiments, the filter assembly 300 may also use a filter membrane for filtration. The damper assembly 400 is used to control the closing or opening of the ventilation passage 110 to achieve the effect of cutting off the alternate switching of the indoor air.

And the fan assembly 200, the damper assembly 400 and the filter assembly 300 are sequentially arranged in the ventilation channel 110 from back to front at intervals. Of course, the order of the fan assembly 200, the damper assembly 400, and the filter assembly 300 may be reversed. In this embodiment, since the damper assembly 400 and the filter assembly 300 have a flat structure on a macroscopic level, the damper assembly 400 and the filter assembly 300 are disposed at an interval in order to reduce the volume.

Specifically, referring to fig. 4 to 6, the air valve assembly 400 includes a fixed valve plate 410, a rotary valve plate 420, and a rotary driving mechanism 430. The fixed valve plate 410 is provided with a first vent hole 411 which penetrates through both side surfaces of the fixed valve plate 410; the rotary valve plate 420 is provided with a rotary axis, a second vent hole 421 and a shielding part 422, in this embodiment, the rotary axis extends along the front-back direction, the rotary valve plate 420 rotates around the rotary axis relative to the fixed valve plate 410, the rotary valve plate 420 is arranged at the rear side of the fixed valve plate 410, the second vent hole 421 and the shielding part 422 are arranged at an annular interval by taking the rotary axis as the center of a circle, and the first vent hole 411 is arranged on the rotary track of the second vent hole 421 and the shielding part 422. The rotary valve plate 420 is overlapped with the fixed valve plate 410, and is in a flat structure macroscopically, so that the occupied space is reduced, and the structure is simpler.

The rotary driving mechanism 430 includes an arc rack 431, a gear 432, and a driving unit 433, the arc rack 431 is fixed on the fixed valve plate 410, an arc center of the arc rack 431 is coaxially disposed with the rotation axis, the driving unit 433 is disposed at the rear side of the fixed valve plate 410, the gear 432 is engaged with the arc rack 431, and the driving unit 433 is provided with an output shaft coaxially connected with the gear 432. When the rotary valve plate 420 is installed, the gear 432 is engaged with the arc-shaped rack 431, and the driving unit 433 is provided with an output shaft coaxially connected with the gear 432 to control the rotary valve plate 420 to rotate.

And the rotation is more stable in order to rotate the valve sheet 420. Rotating valve plate 420 rotationally installs on fixed valve plate 410, and rotating valve plate 420 is provided with the rotation hole, and fixed valve plate 410 corresponds and is provided with the rotation groove, still can set up the axis of rotation that extends along the fore-and-aft direction, and the axis of rotation passes the rotation hole in proper order and stretches into the rotation groove for rotating valve plate 420 revolves the axis of rotation and rotates more stably, also easy to assemble rotating valve plate 420 simultaneously.

In this embodiment, the driving unit 433 adopts a stepping motor as a driving mechanism, and the stepping motor has a self-locking function, so that the control of the automatic air opening closing structure is more stable. In other embodiments, other types of motors, such as servo motors, may be used.

The working principle of the air valve assembly 400 in the embodiment is as follows: the driving unit 433 controls the rotary valve plate 420 to rotate around the rotation axis relative to the fixed valve plate 410 through the cooperation of the gear 432 and the arc-shaped rack 431, so as to control the first vent hole 411 and the second vent hole 421 to be overlapped or not overlapped completely, and achieve the purpose of sealing or opening the air opening. And the amount of the supplied air can be accurately controlled by the overlapping degree of the first ventilating holes 411 and the second ventilating holes 421.

Further, second venthole 421, the quantity of shielding part 422 is a plurality of, a plurality of second ventholes 421 divide into a plurality of through-hole groups, a plurality of through-hole groups use the rotation axis to be radial annular interval setting as the centre of a circle, a plurality of second ventholes 421 on each group of through-hole groups set up along the radial from inside to outside interval of rotary valve piece 420, a plurality of shielding parts 422 divide into a plurality of shielding groups, a plurality of shielding groups use the rotation axis to be radial annular interval setting as the centre of a circle, a plurality of shielding parts 422 on each group of shielding groups and a plurality of second ventholes 421 on each group of through-hole groups are arranged along the radial from inside to outside interval of rotary valve piece 420 in proper order. Similarly, the arrangement of the first ventilation holes 411 is the same as the second ventilation holes 421, which also prevents the entrance of larger garbage and makes the intake air more uniform.

More specifically, the second vent holes 421 and the shielding portions 422 are annularly spaced, and are radially spaced from the rotary valve plate 420, so that the rotary valve plate 420 is substantially in a grid shape, and the area of the rotary valve plate 420 is utilized to expand the air outlet area as much as possible.

Further, referring to fig. 5, in order to fix the stepping motor and the rotary valve sheet 420, the fixed valve sheet 410 needs sufficient support capacity, and therefore, the fixed valve sheet 410 is provided with the reinforcing rib 413, increasing the strength of the fixed valve sheet 410. The reinforcing ribs 413 include reinforcing ribs 413 arranged on the fixed valve plate 410 in a cross shape and reinforcing ribs 413 arranged around the rotary valve plate 420 in a rectangular shape.

Further, referring to fig. 4 and 6, the rotary valve plate 420 has a circular structure, and a structure for protecting the rotary valve plate 420 is convenient to arrange. And fixed valve plate 410 sets up many flanges 440, and flange 440 is the interval and sets up at rotary valve plate 420 border side, and when rotary valve plate 420 was circular, flange 440 set up correspondingly and is the arc form, and arc rack 431 sets up between the interval that flange 440 formed. Ribs 440 facilitate the installation of rotary valve plate 420.

Referring to fig. 7, the fixed valve plate 410 is provided with a stopper 412, and the stopper 412 is disposed at an end of the rib 440. While the stopper 412 is disposed on a rotation trace of the end of the arc-shaped rack 431.

Referring to fig. 8, the rib 440 is provided with a fixing portion 441, and the fixing portion 441 slidably abuts against the front side surface of the rotary valve sheet 420. In the handling process, the rotary valve plate 420 can take place certain rocking relative to the fixed valve plate 410, set up fixed part 441 and make the rotary valve plate 420 reduce rocking in the axial direction of rotation axis, fixed part 441 plays the effect of protection rotary valve plate 420 to and when using, reduce the sound that wind blown the relative fixed valve plate 410 of rotary valve plate 420 and pat.

In addition, a plurality of mounting holes 450 are formed around the stationary valve plate 410, and the mounting holes 450 may be divided into mounting holes 450 for fixing the stationary valve plate 410 to the cabinet 100 and mounting holes 450 for the cover 600. Referring to fig. 1 and 2, four mounting holes 450 for mounting the surface cover 600 are uniformly distributed around the fixed valve plate 410, and strong magnetic bosses 460 are arranged in the mounting holes 450. Because filter screen 310 will play the filtering action, long time, can have impurity on the filter screen 310, in order to play pleasing to the eye effect, consequently set up face lid 600 and cover filter screen 310, face lid 600 is provided with a plurality of third ventilation holes 610 and is used for the air feed to pass through, and third ventilation hole 610 uses the center of face lid 600 to be the annular interval setting as the centre of a circle, arranges regularly, and is more pleasing to the eye. And face lid 600 is through dismantling the maintenance back, and easy fixed shakiness, fixed shakiness receive the wind-force effect can beat fixed valve piece 410 and produce the noise, consequently fixes on first wind gap through the mode of magnetism, and is fixed firm, simple to operate, and can reduce because the noise of fixed shakiness production.

And an external air inlet and outlet structure 500 for blocking rainwater and impurities from entering from the rear air outlet is provided at the rear air outlet of the ventilation channel 110, i.e., the second air outlet. The external air access structure 500 includes a filter plate 510 and a rain shield 520. Rain cover 520 prevents rain from entering the fresh air machine, and filter 510 prevents large sundries from entering the fresh air machine, which is beneficial to the normal operation of the fresh air machine. In order to save the material of the filter plate 510, the filter plate 510 may cover the lower portion of the second tuyere, and the rain shield 520 covers the upper portion of the second tuyere, saving the material of the filter plate 510. And filter 510 and rain-proof cover 520 an organic whole set up, and rain-proof cover 520 is the hemisphere cover body, and rain-proof cover 520 surface is the curved surface, and consequently rain-proof cover 520 is difficult to pile up rubbish.

While the preferred embodiments of the present invention have been described in detail, it is to be understood that the utility model is not limited to the precise embodiments, and that various equivalent changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a new fan of hanging which characterized in that includes:

a cabinet (100) provided with a ventilation passage (110);

a fan assembly (200);

a filter assembly (300);

the air valve assembly (400) comprises a fixed valve plate (410), a rotary valve plate (420) and a rotary driving mechanism (430), wherein the fixed valve plate (410) is provided with a first vent hole (411) penetrating through two side faces of the fixed valve plate (410);

the rotary valve plate (420) is provided with a rotary axis, a second vent hole (421) and a shielding part (422), the rotary valve plate (420) is arranged around the rotary axis in a rotating mode relative to the fixed valve plate (410), the rotary valve plate (420) is arranged on one side of the fixed valve plate (410), the second vent hole (421) and the shielding part (422) are arranged at intervals in an annular mode with the rotary axis as a circle center, and the first vent hole (411) is arranged on a rotary track of the second vent hole (421) and the shielding part (422);

the rotary driving mechanism (430) comprises an arc-shaped rack (431), a gear (432) and a driving unit (433), the arc-shaped rack (431) is fixed on the rotary valve plate (420), the arc center of the arc-shaped rack (431) is coaxially arranged with the rotary axis, the driving unit (433) is relatively fixedly arranged with the fixed valve plate (410), the gear (432) is meshed with the arc-shaped rack (431), and the driving unit (433) is provided with an output shaft coaxially connected with the gear (432);

the fan assembly (200), the air valve assembly (400) and the filtering assembly (300) are arranged in the ventilation channel (110) at intervals.

2. The wall-mounted fresh air machine of claim 1, characterized in that:

the rotary valve plate (420) is rotatably arranged on the fixed valve plate (410).

3. The wall-mounted fresh air machine of claim 1, characterized in that:

second venthole (421), the quantity of occlusion part (422) is a plurality of, and is a plurality of second venthole (421) divide into a plurality of through-hole groups, and is a plurality of through-hole group use the rotation axis is radial annular interval setting as the centre of a circle, and a plurality of second ventholes (421) on each group through-hole group are followed the radial from interior toward outer interval setting of rotating valve piece (420), and a plurality of occlusion parts (422) divide into a plurality of groups that shelter from, a plurality of group with the rotation axis is radial annular interval setting as the centre of a circle, and each group shelters from a plurality of occlusion parts (422) on the group and a plurality of second venthole (421) on each group through-hole group and follows the radial from interior toward outer interval arrangement setting in proper order of rotating valve piece (420), and is a plurality of first venthole (411) and a plurality of the arrangement of second venthole (421) is the same.

4. The wall-mounted fresh air machine of claim 1, characterized in that:

the second ventilation holes (421) are arc-shaped hole structures, and the radians of the second ventilation holes (421) in each group of the ventilation holes are gradually increased from inside to outside.

5. The wall-mounted fresh air machine of claim 1, characterized in that:

the fixed valve plate (410) is provided with a limiting block (412), and the limiting block (412) is arranged on a rotating track of the end part of the arc-shaped rack (431).

6. The wall-mounted fresh air machine of claim 1, characterized in that:

the ventilation channel (110) both ends divide into first wind gap and second wind gap, first wind gap magnetism is inhaled and is fixed with face lid (600), face lid (600) are provided with third ventilation hole (610).

7. The wall-mounted fresh air machine of claim 6, characterized in that:

the second wind gap is provided with outside business turn over wind structure (500), outside business turn over wind structure (500) include filter (510) and rain-proof cover (520).

8. The wall-mounted fresh air machine of claim 7, characterized in that:

the filter plate (510) covers the lower portion of the second air port, and the rain cover (520) covers the upper portion of the second air port.

9. The wall-mounted fresh air machine of claim 8, characterized in that:

the filter (510) with rain-proof cover (520) an organic whole sets up, rain-proof cover (520) are the hemisphere cover body.

10. The wall-mounted fresh air machine of claim 1, characterized in that:

the driving unit (433) is a stepping motor.