CN219345070U - Handpiece mechanism and fan device - Google Patents

Abstract

An embodiment of the present utility model provides a head mechanism and a fan apparatus, wherein the head mechanism includes: a centrifugal fan is arranged in the centrifugal volute, and an air duct outlet and an air duct inlet are arranged on the centrifugal volute; the outer plate is arranged on one side of the centrifugal volute along the axial direction and is provided with an outer air inlet corresponding to the air duct inlet; the outer air inlet specifically comprises a plurality of first air inlet holes. According to the technical scheme, the effect of preliminary scattering of the air inlet can be achieved under the action of the first air inlet hole, so that the air inflow is more uniform, and the noise is reduced.

Description

Handpiece mechanism and fan device

Technical Field

The utility model relates to the technical field of fans, in particular to a machine head mechanism and fan equipment.

Background

At present, in the related art, the air inlet of the circulating fan is exposed to the environment, and under the condition of the operation of the fan, the air can form negative pressure for air suction, however, the air directly flows to the fan, noise can be generated, and the use experience of a user is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

In view of this, embodiments of the first aspect of the present utility model provide a handpiece mechanism.

Embodiments of the second aspect of the present utility model provide a fan apparatus.

To achieve the above object, an embodiment of a first aspect of the present utility model provides a handpiece mechanism, including: a centrifugal fan is arranged in the centrifugal volute, and an air duct outlet and an air duct inlet are arranged on the centrifugal volute; the outer plate is arranged on one side of the centrifugal volute along the axial direction and is provided with an outer air inlet corresponding to the air duct inlet; the outer air inlet specifically comprises a plurality of first air inlet holes.

The machine head mechanism mainly comprises the outer plate and the centrifugal fan assembly, wherein the centrifugal fan assembly is divided into the centrifugal volute and the centrifugal fan, and the machine head mechanism adopts the centrifugal fan, and no fan blade is exposed outside, so that the use safety in the running process is greatly improved.

It is emphasized that in this embodiment, through the outside board of setting up outside the axial of centrifugal fan, can play preliminary scattering's effect to the air inlet to make the inflow of air more even, the noise reduction. Specifically, be equipped with outer air intake on the planking, outer air intake is arranged with the hole form, and under centrifugal fan operation's circumstances, the air can flow in through outer air intake, and can flow in centrifugal fan through assisting the air intake to accomplish the air inlet.

It will be appreciated that the position of the outer air inlet corresponds to the position of the auxiliary air inlet, and specific correspondence includes, but is not limited to, the outer air inlet and the auxiliary air inlet being spaced in the axial direction.

Further, the first air inlet holes are in a circumferential array shape, so that air around the machine head mechanism, namely in all directions, can flow in through the first air inlet holes.

In the above technical scheme, in the radial direction, the aperture of the first air inlet hole gradually decreases from inside to outside.

In the technical scheme, the aperture of the first air inlet hole is limited, the aperture of the first air inlet hole is gradually reduced from inside to outside in the radial direction, the aperture of the inner side is larger, and the aperture of the outer side is smaller, so that on one hand, the frequency of each noise source is changed by adopting the first air inlet holes with different apertures, the generation of fundamental frequency superposition phenomenon is avoided, the noise can be effectively reduced, on the other hand, the aperture of the first air inlet hole outside is smaller, the air inlet quantity is less, the aperture of the first air inlet hole inside is larger, and the air inlet quantity is larger, so that the air inlet speeds of all the radial positions are as consistent as possible, and the air inlet uniformity is improved.

In the above technical scheme, the apertures of the plurality of first air inlet holes with the same radius on the outer plate are the same.

In the technical scheme, the apertures of the first air inlet holes with the same radius are limited on the outer plate, so that the processing is convenient on one hand, and on the other hand, the air flows to the same radius, and the air inlet quantity flowing in through the first air inlet holes is more uniform.

It will be appreciated that the center of the same radius is the axis about which the first air inlet is arranged for circumferential array, typically the axis of rotation of the centrifugal fan.

In the above technical solution, further includes: the air conditioner comprises a shell, wherein a main air inlet and an air outlet are formed in the circumferential side wall of the shell, an auxiliary air inlet is formed in the axial wall surface of the shell, the air outlet is arranged corresponding to the air duct outlet, and the auxiliary air inlet is arranged corresponding to the air duct inlet.

In the technical scheme, the air inlet and outlet of a general centrifugal fan are mutually arranged at ninety degrees, such as left and right air inlet, front air outlet and the like. What needs to be supplemented is, main air intake and supplementary air intake set up respectively on the circumference and the axial wall of casing, and the spiral case is inside to produce certain blocking to the air current because of the installation motor, leads to both sides air inlet seriously uneven, perhaps when aircraft nose mechanism leans on the wall to place or leans on the corner to place, and supplementary air intake can be sheltered from by the wall, can't make full use of the air inlet area of supplementary air intake to reduce the amount of wind, influence the air-out effect, this application utilizes the main air intake that is located the circumferencial direction of casing, can satisfy required air intake, makes the air intake more even, and the position of product does not receive environmental impact, very big improvement service scenario.

The air outlet and the main air inlet on the shell are communicated with the centrifugal volute so that the centrifugal fan can suck air from the main air inlet and discharge the air outwards from the air outlet.

It is to be added that an air duct is formed in the centrifugal volute, an air duct outlet corresponds to an air outlet on the casing, an air duct inlet corresponds to an auxiliary air inlet on the casing, and under the condition that the centrifugal fan rotates, air flows into the casing through the main air inlet and the auxiliary air inlet, flows into the centrifugal volute through the air duct inlet, and flows out to air through the air duct outlet and the air outlet. It will be appreciated that some of the air flowing into the centrifugal volute through the duct inlet is flowing through the primary air inlet and some is flowing through the secondary air inlet.

In the above technical scheme, the casing specifically includes: the first support cover and the second support cover are connected to form an air outlet and a main air inlet; the auxiliary air inlet is arranged on the axial wall surface of the first support cover and/or the axial wall surface of the second support cover.

In the technical scheme, the shell specifically comprises a first supporting cover and a second supporting cover which are separated, and the shell is formed after the first supporting cover and the second supporting cover are connected, namely, an air outlet and a main air inlet are formed.

In one embodiment, the first support hood and the second support hood have partial profile structures of the air outlet and the main air inlet, respectively.

In another embodiment, the air outlet and the main air inlet may be provided on the first support housing at the same time, or on the second support housing at the same time.

In another embodiment, one of the air outlet and the primary air inlet is disposed on the first support housing and the other is disposed on the second support housing.

In the above technical scheme, the auxiliary air inlet specifically comprises a plurality of second air inlet holes in circumferential arrays.

In the technical scheme, for the auxiliary air inlet on the shell, the auxiliary air inlet is in a hole-shaped structure, namely, the auxiliary air inlet comprises a plurality of second air inlet holes in circumferential arrays, and under the action of the second air inlet holes, air can be secondarily dispersed when air flows to the auxiliary air inlet through the outer air inlet, and the air flowing into the centrifugal volute is more sufficient and uniform.

Further, the second air inlet holes are in a circumferential array shape, so that air in all directions can flow in through the second air inlet holes after flowing in between the outer air inlet and the auxiliary air inlet through the first air inlet holes.

Further, each first air inlet hole is provided with a second air inlet hole which is arranged oppositely.

Or the first air inlet hole and the second air inlet hole are arranged in a staggered mode.

In the above technical scheme, the apertures of the second air inlet holes are the same.

In the technical scheme, the aperture of each second air inlet hole is identical by limiting the aperture of the second air inlet hole, so that the processing is convenient, and after the first air inlet holes are scattered, the difference of the air inlet quantity at each radius is smaller, so that the second air inlet holes at the inner side do not change the aperture, and the air inlet quantity can be ensured.

In the above technical scheme, in the radial direction, the aperture of the second air inlet hole gradually decreases from inside to outside.

In the technical scheme, the aperture of the second air inlet hole is limited, the aperture of the second air inlet hole is gradually reduced from inside to outside in the radial direction, the aperture of the inner side is larger, and the aperture of the outer side is smaller, so that on one hand, the frequency of each noise source is changed by adopting the second air inlet holes with different apertures, the generation of fundamental frequency superposition phenomenon is avoided, the noise can be effectively reduced, on the other hand, the aperture of the second air inlet hole outside is smaller, the air inlet quantity is less, the aperture of the second air inlet hole inside is larger, and the air inlet quantity is larger, so that the air inlet speeds of all the semi-diameter positions are as consistent as possible, and the air inlet uniformity is improved.

In the above technical solution, further includes: the air passing cover is sleeved on the outer side of the shell and is provided with a first grid part corresponding to the main air inlet and a second grid part corresponding to the air outlet.

In the technical scheme, the air passing cover is arranged on the outer side of the casing and specifically comprises the first grid part and the second grid part, so that air can be scattered when passing through the first grid part or the second grid part, and the air outlet uniformity is improved.

Further, the first grid part on the air passing cover is arranged corresponding to the main air inlet, so that air can be scattered firstly when passing through the first grid part, and the air entering the centrifugal volute is more uniform.

In this scheme, filter screen structure sets up in the outside of crossing the fan housing to when needing to change, more convenient operation. It can be understood that the filter screen structure belongs to consumable class structure, can pile up more filterable dust on the filter screen structure after the product operation a period, so there is the demand of changing, and this scheme is through setting up the filter screen structure in the outside of crossing the fan housing, and corresponds the setting with main air intake, and user's change is more convenient.

In the above technical solution, further includes: the filter screen structure is arranged corresponding to the main air inlet and/or the auxiliary air inlet.

In the technical scheme, the filter screen structure is arranged at least one of the main air inlet and the auxiliary air inlet, so that the air quality of the indoor environment can be optimized and filtered in the running process of the fan, blown air is cleaner, and the use experience of a user is improved.

Further, the HEPA filter screen can be selected for the filter screen structure, so that impurities with smaller granularity and harmful substances in the air can be filtered.

In the above-mentioned technical scheme, be equipped with the mounting groove that corresponds the setting with main air intake on the circumference lateral wall of fan housing, still include: and the cover plate grating is detachably connected with the mounting groove, and the filter screen structure is arranged between the cover plate grating and the mounting groove.

In this technical scheme, through being provided with the mounting groove on crossing the fan housing, the position of mounting groove is the position corresponding with main air intake on crossing the circumference lateral wall of fan housing, specifically sets up the radial outside at main air intake, on this basis, through setting up the apron grid, the apron grid also is the grille-type, and the air can normally circulate to make can carry out spacing fixedly to the filter screen structure, simultaneously owing to be detachable connection between apron grid and the mounting groove, also be convenient for change to the filter screen structure.

It is understood that the removable connection between the cover plate grating and the mounting groove includes, but is not limited to, a snap fit, a threaded connection, a magnetic connection, and the like.

In the above technical scheme, the planking specifically includes: the first side plate is arranged on one side of the first supporting cover, which is far away from the second supporting cover; the second side plate is arranged on one side of the second supporting cover, which is far away from the first supporting cover; wherein, be equipped with the outer air intake that corresponds with assisting the air intake on first curb plate and the second curb plate.

In the technical scheme, the number of the outer plates is two, namely a first side plate and a second side plate, and specifically, the two side plates are arranged outside the two supporting covers, namely the first side plate is arranged outside the first supporting cover, the second side plate is arranged outside the second supporting cover, and the corresponding outer air inlets are arranged on the two side plates, so that air can flow into the auxiliary air inlets on the machine shell from the outer air inlets on the two side plates, and air inlet is completed.

In the above technical scheme, the casing is provided with auxiliary air inlets on the axial wall surfaces of the two ends along the axial direction respectively.

In this technical scheme, through setting up an auxiliary air intake on the terminal surface of casing, axial wall promptly respectively, but increase centrifugal fan's intake, can understand, on the basis of main air intake, additionally set up two auxiliary air intakes, when the air inlet, can inwards intake from the three direction of casing, the user demand of the big amount of wind of more being convenient for satisfies.

It is understood that the auxiliary air inlet is required to be communicated with the centrifugal volute so as to facilitate air inlet.

Embodiments of the second aspect of the present utility model provide a fan apparatus comprising: a floor stand; any one of the head mechanisms in the first aspect is arranged on the floor stand.

The fan equipment provided by the utility model comprises the floor support and the machine head mechanism, wherein the floor support can play a role in supporting the machine head mechanism. The fan device is in the form of a floor fan, and the air outlet height is more in line with the use habit of a user.

Since the fan device includes the handpiece mechanism, the beneficial effects of any of the aforementioned embodiments of the first aspect are not described herein.

Fan devices include, but are not limited to, floor fans, tower fans, circulation fans, and the like.

Further, the main air inlet is arranged on one side of the casing close to the floor stand, namely, on one side of the casing facing downwards, so that appearance integrity of the fan equipment in a visible angle is reduced to the greatest extent, namely, the lower side close to the floor stand is not easy to observe by a user.

In the above technical solution, further includes: a drive mechanism, comprising: the first supporting piece is connected with the floor stand; and the rotating motor is arranged on the first supporting piece, the driving end of the rotating motor is connected to the second supporting piece, and the second supporting piece is connected with the machine head mechanism.

In this embodiment, the driving mechanism is provided to drive the swing of the head mechanism, for example, to drive the head mechanism to swing left and right or to drive the head mechanism to swing in pitch. Specifically, the driving mechanism comprises a first supporting piece, a rotating motor and a second supporting piece, wherein the first supporting piece and the second supporting piece are respectively arranged on two sides of the rotating motor, the first supporting piece is used for being connected to the floor stand, the second supporting piece is used for being connected with the machine head mechanism, and the machine head mechanism can swing relatively to the floor stand under the action of the rotating motor.

In the above technical solution, further includes: the rotating mechanism is arranged on the floor stand; wherein, the rotating mechanism and the driving mechanism are arranged at two opposite sides of the machine head mechanism along the axial direction.

In this technical scheme, through setting up slewing mechanism on the support that falls to the ground to with slewing mechanism setting up the opposite side at aircraft nose mechanism, slewing mechanism mainly plays auxiliary stay's effect, thereby plays effectual rotatory effect of supporting to aircraft nose mechanism under actuating mechanism's combined action, simultaneously, through relative swing, can fully circulate air, improves purifying effect.

Further, the rotating mechanism and the driving mechanism are arranged on two sides of the machine head mechanism in the axial direction, so that pitching adjustment of the machine head mechanism is achieved.

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

Drawings

FIG. 1 shows a schematic structural view of a handpiece mechanism in accordance with one embodiment of the present utility model;

FIG. 2 shows a schematic structural view of a centrifugal volute and impeller according to one embodiment of the utility model;

FIG. 3 shows a schematic structural view of a chassis according to an embodiment of the present utility model;

FIG. 4 illustrates a schematic cross-sectional configuration of a handpiece mechanism in accordance with one embodiment of the present utility model;

FIG. 5 illustrates a schematic cross-sectional configuration of a handpiece mechanism in accordance with one embodiment of the present utility model;

FIG. 6 shows a schematic axial cross-sectional configuration of a handpiece mechanism in accordance with one embodiment of the present utility model;

fig. 7 shows a schematic structural view of a fan apparatus according to an embodiment of the present utility model;

fig. 8 shows a schematic structural view of a fan apparatus according to an embodiment of the present utility model;

FIG. 9 shows a schematic structural view of a rotating bracket according to one embodiment of the present utility model;

FIG. 10 shows a schematic structural view of a drive mechanism according to one embodiment of the utility model;

Fig. 11 shows a schematic structural view of a head mechanism according to an embodiment of the present utility model.

The correspondence between the reference numerals and the component names in fig. 1 to 11 is:

100: a nose mechanism; 102: a housing; 1022: an air outlet; 1024: a main air inlet; 1026: an auxiliary air inlet; 1028: a second air inlet; 1032: a first support cover; 1034: a second support cover; 104: centrifugal volute; 1042: an air duct outlet; 1044: an air duct inlet; 106: a centrifugal fan; 1062: a driving motor; 1064: an impeller; 107: a wind cover; 1072: a first grid part; 1074: a second grid part; 108: a filter screen structure; 1102: a mounting groove; 1104: a cover plate grid; 112: an outer plate; 1122: an outer air inlet; 1124: a recessed plate; 126: a first air inlet; 1132: a first side plate; 1134: a second side plate;

200: a fan device; 202: a floor stand; 204: a driving mechanism; 2042: a first support; 2046: a second support; 206: a rotating mechanism; 208: a guide member; 2082: a guide plate; 210: rotating the bracket; 2102: a connection part; 2104: a wire through hole; 2106: wire passing grooves; 2108: a limit button; 212: and rotating the motor.

Detailed Description

In order that the above-recited objects, features and advantages of embodiments of the present utility model can be more clearly understood, a further detailed description of embodiments of the present utility model will be rendered by reference to the appended drawings and detailed description thereof. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the utility model may be practiced otherwise than as described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

Some embodiments according to the present utility model are described below with reference to fig. 1 to 11.

The nose mechanism 100 provided in an embodiment only includes the centrifugal volute 104, the centrifugal fan 106 and the outer plate, and as the nose mechanism 100 of the present embodiment adopts the centrifugal fan 106, no fan blade is exposed, so that the use safety in the operation process is greatly increased. An outer plate 112 is arranged outside the axial direction of the centrifugal volute 104, so that an effect of preliminary scattering of air inlet can be achieved, and air inflow is more uniform. Specifically, the outer plate 112 is provided with an outer air inlet 1122, the outer air inlet 1122 is arranged in a hole shape, and when the centrifugal fan 106 is operated, air flows in through the outer air inlet 1122 and flows into the centrifugal fan 106 through the auxiliary air inlet 1026, thereby completing air intake.

Alternatively, in another embodiment, as shown in fig. 1, a nose mechanism 100 provided in this embodiment mainly includes a casing 102 and a centrifugal fan assembly, where the centrifugal fan assembly is divided into a centrifugal volute 104 and a centrifugal fan 106, and by disposing the centrifugal volute 104 in the casing 102, circulation of air in and out of the air can be achieved through an air outlet 1022 and a main air inlet 1024 on the casing 102, and since the nose mechanism 100 in this embodiment adopts the centrifugal fan 106, no fan blade is exposed, so that use safety in operation is greatly increased. It should be emphasized that the air inlet and outlet of the general centrifugal fan 106 are disposed at ninety degrees, such as left and right air inlet and front air outlet, etc., in this solution, the air inlet and outlet 1022 at the same position is formed on the casing 102 outside the centrifugal volute 104, that is, the air outlet 1022 and the main air inlet 1024 are all disposed on the circumferential side wall of the casing 102, and during production, only the circumferential side wall of the casing 102 needs to be processed, so that the casing 102 structure with the air outlet 1022 and the main air inlet 1024 can be produced. What is needed is that the main air inlet 1024 and the auxiliary air inlet 1026 are respectively arranged on the circumferential direction and the axial wall surface of the casing 102, the interior of the volute is blocked to a certain extent by the installation of the motor, so that the air inlet on two sides is seriously uneven, or when the machine head mechanism 100 is placed by a wall or by a corner, the auxiliary air inlet 1026 can be shielded by the wall, the air inlet area of the auxiliary air inlet 1026 can not be fully utilized, so that the air quantity is reduced, the air outlet effect is influenced, the main air inlet 1024 positioned on the circumferential direction of the casing 102 is utilized, the required air inlet quantity can be met, the air inlet is more uniform, the position of a product is not influenced by the environment, and the use scene is greatly improved.

It should be added that, further, the outer plate 112 is arranged outside the axial direction of the casing 102, which can have an effect of preliminary scattering of the air inlet, so that the air flows in more uniformly. Specifically, the outer plate 112 is provided with an outer air inlet 1122, the outer air inlet 1122 is arranged in a hole shape, and when the centrifugal fan 106 is operated, air flows in through the outer air inlet 1122 and flows into the centrifugal fan 106 through the auxiliary air inlet 1026, thereby completing air intake.

It will be appreciated that the location of the outer air inlet 1122 corresponds to the location of the secondary air inlet 1026, and that specific correspondence includes, but is not limited to, the outer air inlet 1122 and the secondary air inlet 1026 being spaced apart in the axial direction.

Further, the first air inlet holes 126 are in a circumferential array, so that air around the handpiece mechanism 100, i.e. in all directions, can flow in through the first air inlet holes 126.

The entire handpiece mechanism 100 is annular, and may be partially convex on a cylindrical basis as shown in fig. 1.

Wherein, the air outlet 1022 and the main air inlet 1024 on the casing 102 are both communicated with the centrifugal volute 104, so that the centrifugal fan 106 sucks air from the main air inlet 1024 and discharges the air outwards from the air outlet 1022.

It should be noted that, as shown in fig. 2, an air duct is formed in the centrifugal volute 104, an air duct outlet 1042 corresponds to an air outlet 1022 on the casing 102, an air duct inlet 1044 corresponds to an auxiliary air inlet 1026 on the casing 102, and under the condition that the centrifugal fan 106 rotates, air flows into the casing 102 through the main air inlet 1024 and the auxiliary air inlet 1026, flows into the centrifugal volute 104 through the air duct inlet 1044, and flows out to the air through the air duct outlet 1042 and the air outlet 1022. It will be appreciated that some of the air flowing into the centrifugal volute 104 through the duct inlet 1044 flows through the primary inlet 1024 and some flows through the secondary inlet 1026.

The enclosure 102 specifically includes a first support housing 1032 and a second support housing 1034 that are separated from each other, and the first support housing 1032 and the second support housing 1034 are connected to form the enclosure 102, i.e., the air outlet 1022 and the main air inlet 1024.

In one embodiment, there are partial contours of the air outlet 1022 and the main air inlet 1024 on the first support housing 1032 and the second support housing 1034, respectively.

In another embodiment, the air outlet 1022 and the main air inlet 1024 may be disposed on the first support housing 1032 at the same time, or on the second support housing 1034 at the same time.

In another embodiment, one of the air outlet 1022 and the primary air inlet 1024 is disposed on the first support housing 1032 and the other is disposed on the second support housing 1034.

As shown in fig. 1, an air passing cover 107 is disposed on the outer side of the casing 102, where the air passing cover 107 specifically includes a first grille part 1072 and a second grille part 1074, so that air can be scattered when passing through the first grille part 1072 or the second grille part 1074, and air outlet uniformity is improved.

It should be added that the extending direction of the grille of the second grille part 1074 is not parallel to the extending direction of the blades, so that the wind flowing out from the air duct outlet 1042 is scattered by the second grille part 1074, thereby improving the uniformity of the wind outlet. It is understood that, if the extending direction of the blade is parallel to the extending direction of the grille of the second grille part 1074, the direction of the outlet airflow is blocked, and the air volume is lost.

Further, when viewed from the air outlet 1022, the blades extend in the transverse direction, and the extending direction of the grille may be vertical or inclined, so long as a certain included angle exists between the grille and the transverse direction.

More specifically, the relative position relationship between the extending direction of the blades and the extending direction of the grille is vertical, so that the blocking influence on the air flow of the air outlet can be reduced to the greatest extent, and the air outlet quantity is ensured.

In addition, the distance between the air duct outlet 1042 and the volute is limited, so that air can keep high wind speed by utilizing a short air duct, further air supply distance can be realized, and air circulation in the environment where the product is located can be improved. Specifically, the lateral distance from the volute tongue portion of the centrifugal volute 104 at the location of the air duct outlet 1042 in the cross section of the impeller 1064 needs to be less than 0.5 times the diameter of the impeller 1064, i.e., the distance between the air duct outlet 1042 and the volute tongue is < 0.5 times the diameter of the impeller in the direction perpendicular to the vertical direction.

It can be understood that the position of the volute tongue is the minimum clearance between the wind wheel and the volute.

In a specific embodiment, the dimension between the impeller 1064 and the air outlet 1022 of the volute is limited, and the distance between the air outlet 1042 and the rotating shaft of the impeller 1064 in the lateral direction is 0.7-1.3 times the diameter of the impeller 1064, so that the air speed at the air outlet 1042 is less attenuated, the outward air speed is larger, and the circulation effect is improved.

In this embodiment, the shape of the second grille part 1074 is further defined, as shown in fig. 5, in the top-to-bottom direction, the distance Ln between the second grille part 1074 and the vertical plane is gradually increased, that is, ln1< Ln2< Ln3, the whole air duct outlet 1042 is transitionally extended from top to bottom, on the basis of this, the plane in the vertical direction corresponding to the top of the air duct outlet 1042 can be defined as the vertical plane, and by defining the distance between the second grille part 1074 and the vertical plane to be gradually increased, the air outlet uniformity is improved. It can be appreciated that, because the top air-out of traditional form air outlet 1022 is more, through adjusting the grid position, promote bottom wind channel length and realize bottom air-out improvement to the even effect of upper and lower direction air-out is realized.

Further, the shape of the air duct outlet 1042 is limited, and the outline of the air duct outlet 1042 on the cross section of the centrifugal fan 106 is convex, so that the air output of the bottom of the air duct outlet 1042 can be improved.

Further, the curvature of the profile of the air duct outlet 1042 is monotonically varying.

In one embodiment, the profile of the air duct outlet 1042 has a curvature at the top position that is less than the curvature at the bottom position.

In another embodiment, the profile of the air duct outlet 1042 has a smaller curvature at the bottom position than at the top position.

The filter screen structure 108 is arranged at least one of the main air inlet 1024 and the auxiliary air inlet 1026, so that the air quality of the indoor environment can be optimized and filtered in the running process of the fan, the blown air is cleaner, and the use experience of a user is improved.

Further, the filter structure 108 may be a HEPA filter, so as to filter impurities with smaller granularity and some harmful substances in the air.

In one embodiment, the screen structure 108 is disposed only at the primary intake 1024, and the screen structure 108 may be disposed inside the primary intake 1024 or correspondingly outside the primary intake 1024.

In another embodiment, the screen structure 108 is disposed only at the secondary air inlet 1026, and the screen structure 108 may be disposed inside the secondary air inlet 1026 or correspondingly outside the secondary air inlet 1026.

In another embodiment, the screen structure 108 is provided at both the primary intake 1024 and the secondary intake 1026.

It will be appreciated that the screen arrangement 108 is provided on the outside of the hood 107 to facilitate handling when replacement is required. It can be appreciated that the filter screen structure 108 belongs to a consumable structure, after a period of product operation, more filtered dust can be accumulated on the filter screen structure 108, so that a need for replacement exists.

On the basis of any one of the above embodiments, the mounting groove 1102 is provided on the air passing cover 107, the position of the mounting groove 1102 is the position corresponding to the main air inlet 1024 on the circumferential side wall of the air passing cover 107, and the mounting groove 1102 is specifically provided on the radial outer side of the main air inlet 1024, on the basis, the cover plate grating 1104 is also in a grating shape, and air can normally circulate, so that the filter screen structure 108 can be limited and fixed, and meanwhile, the cover plate grating 1104 and the mounting groove 1102 are detachably connected, so that the filter screen structure 108 is also convenient to replace.

It is understood that the removable connection between the cover plate grating 1104 and the mounting slot 1102 includes, but is not limited to, a snap fit, a threaded connection, a magnetic connection, and the like.

In a specific embodiment, as shown in fig. 11, the number of the outer plates 112 is two, specifically, the first side plate 1132 and the second side plate 1134, specifically, by arranging the two side plates outside the two support covers, that is, arranging the first side plate 1132 outside the first support cover 1032, arranging the second side plate 1134 outside the second support cover 1034, and arranging the corresponding outer air inlets 1122 on the two side plates, air can flow from the outer air inlets 1122 on the two side plates into the auxiliary air inlets 1026 on the casing 102, thereby completing air intake.

The aperture of the first air inlet hole 126 is limited, the aperture of the first air inlet hole 126 is gradually reduced from inside to outside in the radial direction, the aperture of the inner side is larger, and the aperture of the outer side is smaller, so that on one hand, the frequency of each noise source is changed by adopting the first air inlet holes 126 with different apertures, the generation of the fundamental frequency superposition phenomenon is avoided, the noise can be effectively reduced, on the other hand, the aperture of the first air inlet hole 126 on the outer side is smaller, the air inlet quantity is smaller, the aperture of the first air inlet hole 126 on the inner side is larger, and the air inlet quantity is larger, so that the air inlet speeds of all the semi-diameter positions are as consistent as possible, and the air inlet uniformity is improved.

Further, the apertures of the first air inlet holes 126 on the outer plate 112 with the same radius are defined, and the apertures with the same radius are the same, so that on one hand, the processing is convenient, and on the other hand, the air flows to the same radius, and the air inlet quantity flowing through the first air inlet holes 126 is more uniform.

It will be appreciated that the center of the same radius is the axis about which the first air inlet 126 is circumferentially arrayed, typically the axis of rotation of the centrifugal fan 106.

In a specific embodiment, the outer plate 112 is concavely designed, and the first air inlet holes 126 are formed on the concave plate 1124, so that the impact of air in the negative pressure air inlet process can be effectively reduced, the concave plate 1124 can have a certain flow guiding effect on the air, and meanwhile, the coanda effect is utilized, so that the air tends to flow along the wall surface, and the air inlet efficiency is improved.

The concave direction of the concave plate 1124 is concave, i.e. the concave plate 1124 faces the centrifugal volute 104, the concave plate 1124 is a curved surface, the air flows into the first air inlet hole 126 along the surface of the concave plate 1124 more smoothly, and the flow guiding effect and the air inlet efficiency can be effectively improved due to the curved surface structure under the condition of not increasing wind resistance.

As shown in fig. 6, the included angle c between the outer wall surface of the concave plate 1124 and the vertical direction is limited to be smaller than 30 degrees, the concave angle of the concave plate 1124 is smaller, the air steering is gentle, the possibility of noise is reduced, the guiding effect is more obvious, and the space arrangement of the structure and the guiding effect on the air can be considered.

As shown in fig. 3, for the auxiliary air inlet 1026 on the casing 102, the shape of the auxiliary air inlet 1026 is a hole structure, that is, the auxiliary air inlet 1026 includes a plurality of second air inlet 1028 arranged in a circumferential array, and under the action of the second air inlet 1028, when the air flows into the auxiliary air inlet 1026 through the outer air inlet 1122, the air can be secondarily dispersed, and the air flowing into the centrifugal volute 104 is more sufficient and uniform.

Further, the second air inlet 1028 is in a circumferential array shape, so that after the air flows into the space between the outer air inlet 1122 and the auxiliary air inlet 1026 through the first air inlet 126, the air in all directions can flow into the space through the second air inlet 1028.

Further, each first air inlet 126 has a second air inlet 1028 opposite to the first air inlet.

Alternatively, the first air inlet 126 and the second air inlet 1028 are arranged in a staggered manner.

In a specific embodiment, the aperture of the second air inlet 1028 is limited, the aperture of each second air inlet 1028 is the same, so that the processing is convenient, and after the first air inlet 126 is broken, the difference of the air inlet amount at each radius is smaller, so that the second air inlet 1028 at the inner side does not change the aperture, and the air inlet amount can be ensured.

In another specific embodiment, the diameter of the second air inlet 1028 is gradually reduced from inside to outside in the radial direction, the diameter of the second air inlet 1028 is larger near the inner side, and the diameter of the second air inlet 1028 is smaller near the outer side.

On the basis of any of the above embodiments, an auxiliary air inlet 1026 is respectively provided on the end face, i.e. the axial wall surface, of the casing 102, so that the air intake of the centrifugal fan 106 can be increased, and it can be understood that, on the basis of the main air inlet 1024, two auxiliary air inlets 1026 are additionally provided, and when air is taken in, air is taken in from three directions of the casing 102, so that the use requirement of large air volume can be more conveniently satisfied.

It will be appreciated that the secondary air inlet 1026 needs to be in communication with the centrifugal volute 104 in order to facilitate air intake.

In this embodiment, since the main air inlet 1024 and the air outlet 1022 are disposed along the circumferential direction of the casing 102, the effect of supplementing the air volume of the air inlet can be achieved.

Specifically, as shown in fig. 4, an included angle b between a straight line of one end of the air outlet 1022, which is close to the main air inlet 1024, relative to the rotation axis of the centrifugal fan 106, and a straight line of one end of the air inlet, which is close to the air outlet 1022, relative to the rotation axis of the centrifugal fan 106 is not less than 30 degrees, so that a certain gap is defined between the main air inlet 1024 and the air outlet 1022, so that air flowing out from the air outlet 1022 does not directly return to the main air inlet 1024, and an air supply effect is ensured.

As shown in fig. 4, the furthest position of the main air inlet 1024 from the air outlet 1022 is defined, that is, the angle a between the end of the air outlet 1022 close to the main air inlet 1024 and the end of the air outlet 1024 far from the air outlet 1022 is not greater than 150 degrees, which is opposite to the rotation axis of the centrifugal fan 106, so that the air inlet at the position with the highest air inlet efficiency in the centrifugal volute 104 is fully utilized, and the air inlet efficiency is improved.

Through restricting the circumference position of main air intake 1024, limit the central angle that its both ends correspond to 100 ~ 130 to on the one hand can reduce the complete machine resistance that admits air, make full use of bottom position's air, very big promotion air input, on the other hand, it is difficult too big to restrict main air intake 1024, thereby guarantee the position and the air supply distance of air outlet 1022.

In a specific embodiment, the relative positions of the air outlet 1022 and the main air inlet 1024 are limited, under the condition that the centrifugal fan 106 rotates normally, the air outlet 1022 is located at the rear side of the main air inlet 1024 along the rotation direction of the centrifugal fan 106, that is, when rotating anticlockwise, the air outlet 1022 is located at the upper side of the main air inlet 1024, and when rotating clockwise, the air outlet 1022 is located at the lower side of the main air inlet 1024, and the air outlet 1022 is arranged at the main air inlet 1024, so as to improve the air inlet efficiency.

In a specific embodiment, the air inlet areas of the two air inlets are limited, the air inlet area of the main air inlet 1024 is limited to be larger, and the air inlet area of the auxiliary air inlet 1026 is limited to be smaller, so that the main air inlet 1024 can be fully utilized, and meanwhile, hidden air inlet can be realized according to the position of the main air inlet 1024.

As shown in fig. 7, the present embodiment proposes a fan apparatus 200, which includes a floor stand 202 and a nose mechanism 100, and the floor stand 202 can support the nose mechanism 100. The fan apparatus 200 is in the form of a floor fan, and the air outlet height is more in accordance with the use habit of the user.

Since the fan apparatus 200 includes the handpiece mechanism 100, the beneficial effects of any of the handpiece mechanisms 100 in the embodiments of the first aspect are not described herein.

Fan apparatus 200 includes, but is not limited to, floor fan, tower fan, circulation fan, and the like.

Further, the placement of the primary air intake 1024 on the side of the chassis 102 adjacent the floor stand 202, i.e., on the downward side of the chassis 102, minimizes the apparent integrity of the fan apparatus 200 in the visible angle, i.e., the underside adjacent the floor stand 202, from being readily observed by a user.

Further, as shown in fig. 8, by providing the driving mechanism 204, the swing of the head mechanism 100 can be driven, for example, the head mechanism 100 can be driven to swing left and right, or the head mechanism 100 can be driven to swing in pitch. Specifically, as shown in fig. 10, the driving mechanism 204 includes a first support member 2042, a rotating motor 212, and a second support member 2046, wherein the first support member 2042 and the second support member 2046 are respectively disposed on two sides of the rotating motor 212, the first support member 2042 is used for connecting to the floor stand 202, and the second support member 2046 is used for connecting to the handpiece mechanism 100, such that the handpiece mechanism 100 can swing relatively to the floor stand 202 under the action of the rotating motor 212.

The rotating mechanism 206 is arranged on the floor support 202, the rotating mechanism 206 is arranged on the other side of the machine head mechanism 100, and the rotating mechanism 206 mainly plays an auxiliary supporting role, so that an effective supporting and rotating effect on the machine head mechanism 100 is achieved under the combined action of the driving mechanism 204, meanwhile, air can be fully circulated through relative swinging, and the purifying effect is improved.

Further, the rotation mechanism 206 and the driving mechanism 204 are provided on both axial sides of the head mechanism 100, thereby effecting pitch adjustment of the head mechanism 100.

In another embodiment, as shown in fig. 6, a guide member 208 is disposed at two axial ends of the handpiece mechanism 100, and due to the guide plate 2082 disposed on the guide member 208, an air intake space is formed under the combined action of the guide plate 2082 and the recess plate 1124, and air flows into the housing 102 through the air intake space.

The inclination angle d of the guide plate 2082 relative to the vertical direction is 60 ° to 90 °, so that air can flow into the air intake space in a sufficient amount.

Further, the guide 208 may be directly disposed on the rotating bracket 210.

The inlet angle of the guide plate 2082 is limited, and the included angle e of the tangent line of one end of the guide plate 2082 far away from the machine head mechanism 100 relative to the vertical direction is smaller than 40 °, so that the impact of the incoming flow of the auxiliary air inlet 1026 can be reduced, and the air inlet efficiency is improved.

In a specific embodiment, the rotating bracket 210 is provided to enable the handpiece mechanism 100 to perform a panning rotation, specifically, the rotating bracket 210 includes two connection portions 2102, and the two connection portions 2102 are disposed on two axial sides of the housing 102, and the housing 102 can be rotatably connected to the rotating bracket 210 through the connection portions 2102, so that a tilting or panning motion of the handpiece mechanism 100 can be achieved. On this basis, because the centrifugal fan 106 needs to supply power, when the centrifugal fan 106 rotates, certain limitation exists to the arrangement of the wires, and the wire is directly extended along the connecting portion 2102 by the connecting portion 2102 in the scheme, so that the wires are led out outwards, and the power supply to the centrifugal fan 106 is realized.

It should be noted that, the rotating bracket 210 is generally Y-shaped, so that the size of the handpiece mechanism 100 is not greatly limited.

The auxiliary air inlet 1026 is directly arranged around the rotating shaft of the rotating bracket 210, that is, the first air inlet 126 can avoid the position of the supporting point when being arranged, so that the influence of the supporting point on the air inlet quantity is reduced, and the air inlet efficiency is improved.

A rotation motor 212 is provided at the connection part 2102 on one side of the housing 102 to drive the rotation of the housing 102.

Centrifugal fan 106 includes driving motor 1062 and impeller 1064, and driving motor 1062 can drive impeller 1064 rotation to realize outwards supplying air, in this scheme, restrict the position of rotating motor 212 and driving motor 1062, restrict the two setting in the opposite both sides of casing 102, thereby make the focus of whole product be close to the axis, keep stable in structure.

In one embodiment, as shown in fig. 9, a wire hole 2104 is provided on the connection portion 2102, so that the wires of the centrifugal fan 106 can be led outwards, and the wires can be led outwards from inside to outside due to the form of the wire hole 2104 and then connected with a controller or a power supply.

In another embodiment, the wire passing groove 2106 is arranged on the rotating bracket 210, so that wires can be placed in the wire passing groove 2106, the wire passing groove 2106 provides space for the wires, and structural protection is realized, so that the wires are conveniently hidden in the wire passing groove 2106, and the smoothness of a circuit is ensured.

Further, the limiting buckle 2108 is arranged on the wire passing groove 2106, so that the wires can be limited, the wires are prevented from falling into the machine head mechanism 100 after falling off, and the use safety is improved.

More specifically, the distance of either one of the wire passing hole 2104 and the wire passing groove 2106 from the rotation axis of the impeller 1064 is within 200mm, and the path of the wire is closer to the center, so that the wire is led out.

According to the machine head mechanism and the fan equipment provided by the utility model, the effect of preliminary scattering of the air inlet can be achieved under the action of the first air inlet hole, so that the air inflow is more uniform, and the noise is reduced.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (15)

1. A handpiece mechanism, comprising:

the centrifugal volute is internally provided with a centrifugal fan, and the centrifugal volute is provided with an air duct outlet and an air duct inlet;

the outer plate is arranged on one side of the centrifugal volute along the axial direction, and an outer air inlet corresponding to the air duct inlet is formed in the outer plate;

the outer air inlet specifically comprises a plurality of first air inlet holes.

2. The handpiece mechanism of claim 1, wherein a plurality of the first air inlet openings are in a circumferential array, and the apertures of the first air inlet openings gradually decrease from inside to outside in the radial direction.

3. The nose mechanism of claim 2, wherein the apertures of the plurality of first air inlet openings of the same radius on the outer plate are the same.

4. The handpiece mechanism of claim 1, further comprising:

the air conditioner comprises a shell, wherein a main air inlet and an air outlet are formed in the circumferential side wall of the shell, an auxiliary air inlet is formed in the axial wall surface of the shell, the air outlet is arranged corresponding to the air duct outlet, and the auxiliary air inlet is arranged corresponding to the air duct inlet.

5. The handpiece mechanism of claim 4, wherein the housing specifically comprises:

The first support cover and the second support cover are connected to form the air outlet and the main air inlet;

the auxiliary air inlet is arranged on the axial wall surface of the first support cover and/or the axial wall surface of the second support cover.

6. The handpiece mechanism of claim 5, wherein the secondary air intake specifically includes a plurality of circumferentially arrayed second air intake openings.

7. The handpiece mechanism of claim 6, wherein the apertures of the second air inlet openings are the same.

8. The nose mechanism of claim 6, wherein the aperture of the second air inlet aperture tapers from inside to outside in a radial direction.

9. The handpiece mechanism of claim 5, further comprising:

the air passing cover is sleeved on the outer side of the shell, and is provided with a first grid part corresponding to the main air inlet and/or a second grid part corresponding to the air outlet.

10. The handpiece mechanism of claim 9, further comprising:

the filter screen structure is arranged on the outer side of the air passing cover corresponding to the first grid part.

11. The machine head mechanism according to claim 10, wherein the circumferential side wall of the air passing cover is provided with a mounting groove corresponding to the main air inlet, and the machine head mechanism further comprises:

and the cover plate grating is detachably connected with the mounting groove, and the filter screen structure is arranged between the cover plate grating and the mounting groove.

12. The head mechanism of claim 5, wherein the outer plate comprises:

the first side plate is arranged on one side of the first supporting cover, which is far away from the second supporting cover;

the second side plate is arranged on one side, far away from the first support cover, of the second support cover;

the first side plate and the second side plate are provided with outer air inlets corresponding to the auxiliary air inlets.

13. The machine head mechanism according to claim 4, wherein the auxiliary air inlets are respectively provided on axial wall surfaces of both ends of the machine housing in the axial direction.

14. A fan apparatus, comprising:

a floor stand;

a nose mechanism as claimed in any one of claims 1 to 13, provided on the floor stand.

15. The fan apparatus as recited in claim 14, further comprising:

A drive mechanism, comprising: the first supporting piece is connected with the floor stand; the rotating motor is arranged on the first supporting piece, the driving end of the rotating motor is connected to the second supporting piece, and the second supporting piece is connected with the machine head mechanism; and/or

The rotating mechanism is arranged on the floor support;

wherein, the rotating mechanism and the driving mechanism are arranged at two opposite sides of the machine head mechanism along the axial direction.

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