CN218669877U - Fan and desk-top clean cigarette machine - Google Patents

Abstract

The utility model relates to the technical field of range hoods, in particular to a fan and a table type range hood, wherein the fan comprises a bottom plate, a volute wall plate, a cover body and a blowing assembly, the volute wall plate is arranged on the bottom plate, the cover body is arranged on the bottom plate, and the cover body, the bottom plate and the volute wall plate are enclosed to form an installation cavity; the blowing assembly is positioned in the mounting cavity and comprises a stator, a rotor and an impeller, and the stator is arranged on the bottom plate; the rotor is in running fit with the stator; the impeller is fixedly connected with the rotor. This fan is through setting up the spiral case on the bottom plate, and the stator direct mount of the subassembly of will blowing has saved the structure of the casing of original motor on the bottom plate, and original motor casing's thickness has been saved to whole fan in thickness for whole fan size in thickness obtains reducing. In addition, the assembling process of the fan is completed after the blowing assembly is assembled in a mode that the rotor and the stator are matched, compared with the existing process of assembling the motor firstly and then assembling the fan, the assembling process is simplified, and the assembling efficiency is greatly improved.

Description

Fan and desk-top clean cigarette machine

Technical Field

The utility model relates to a lampblack absorber technical field especially relates to a fan and desk-top clean cigarette machine.

Background

The lampblack absorber can completely absorb the lampblack generated during cooking, and through the development of the lampblack absorber, the lampblack absorber has various styles and application occasions are not limited to indoor kitchens. But lampblack absorber major structure does not take place big change, comprises casing and fan, and wherein, the fan is as the main power unit of lampblack absorber, and its structure directly influences the overall structure and the outward appearance size of lampblack absorber. As application number 201420391892.8 discloses a small-size centrifugal fan of high efficiency, including the drain pan that is provided with the air outlet, be provided with the face lid of air intake to and install the motor on the drain pan, be fixed with the wind wheel of the cylindric inner shell of awl on the driving shaft of motor.

The arrangement of the structure has the following disadvantages:

1. the motor is provided with a motor shell, and the motor shell is attached to a bottom shell of the fan, so that the whole thickness of the fan is large, and the development requirement of light and thin thickness of the range hood cannot be met;

2. one end of the motor is connected with the bottom shell of the fan, so that the connection is not firm;

3. only one connecting shaft is arranged between the wind wheel and the driving shaft, so that the connection is not firm, the wind wheel is easy to generate radial runout and abnormal sound is generated;

4. the bottom shell, the fan and the wind wheel are arranged in a split mode, the fan needs to be assembled firstly, and then the fan and the wind wheel are installed on the bottom shell, so that the installation process is complex and tedious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan and desk-top clean cigarette machine to solve the drain pan laminating setting of motor casing and fan among the prior art, make the big and installation technology of fan of whole thickness complicated, loaded down with trivial details problem.

In order to achieve the purpose, the utility model adopts the following technical proposal:

in one aspect, the utility model provides a fan, this fan includes:

a base plate;

a volute coaming plate arranged on the bottom plate,

the cover body is covered on the bottom plate, and the cover body, the bottom plate and the volute enclosing plate enclose an installation cavity;

the subassembly of blowing is located the installation intracavity, the subassembly of blowing includes:

the stator is arranged on the bottom plate;

a rotor rotationally engaged with the stator;

and the impeller is fixedly connected with the rotor.

As an optimal technical scheme of fan, the bottom plate is equipped with a solid fixed cylinder, the stator is equipped with the installation inner tube, the installation inner tube cover is located a solid fixed cylinder, the impeller includes support frame and blade, the blade is located the circumference of support frame, the one end of support frame with the one end of a solid fixed cylinder rotates and is connected, the other end of support frame with the other end of a solid fixed cylinder rotates and is connected.

As an optimal technical scheme of fan, the support frame includes brace table and pivot, the brace table is the cup, the inside mounting groove that is equipped with of brace table, the rotor inlays to be located mounting groove and cover are located the stator periphery, the one end of pivot connect in the tank bottom of mounting groove, the pivot is worn to locate the solid fixed cylinder, the one end of solid fixed cylinder is equipped with first bearing, the other end of solid fixed cylinder is equipped with the second bearing, the one end of pivot inlay and locate in the first bearing, the other end of pivot inlay and locate in the second bearing.

As a preferred technical scheme of the fan, an annular groove is formed in one end, close to the support frame, of the rotating shaft, a clamp spring is clamped in the annular groove, and the outer diameter of the clamp spring is larger than the outer diameter of the inner ring of the second bearing and smaller than the inner diameter of the outer ring of the second bearing.

As a preferred technical scheme of the fan, the rotor is clamped in the mounting groove; and/or

The fixed cylinder is clamped with the stator.

As a preferred technical scheme of fan, the fan still includes the elastic component, the elastic component is located the solid fixed cylinder with between the support frame, the elastic component is used for making the support frame keep away from the bottom plate.

As a preferred technical scheme of the fan, one end of the fixed cylinder close to the bottom plate is provided with a limit ring, one end of the stator abuts against the limit ring, the bottom plate is provided with an annular table, the fixed cylinder is arranged in the annular table, one end of the annular table far away from the bottom plate is located in the mounting groove, the bottom plate is provided with an air guide, one end of the air guide is connected with the volute tongue, the other end of the air guide is connected with the annular table, and the air guide is used for guiding air flow in an air duct to the air outlet.

As a preferred technical scheme of the fan, the diameter size of the outer contour of the annular table is firstly reduced and then increased along the direction far away from the bottom plate, the annular table is in a spindle structure, the diameter of the annular table is the smallest in position and located between the bottom plate and the supporting table in the thickness direction, and one end, far away from the bottom plate, of the annular table is located in the mounting groove.

As an optimal technical scheme of the fan, the bottom plate is provided with a first flow guide piece, the cover body is provided with a second flow guide piece, and the first flow guide piece and the second flow guide piece are oppositely arranged and are both positioned in the air outlet.

On the other hand, the utility model provides a desk-top clean cigarette machine, fan in first filtration piece and the above-mentioned arbitrary scheme, the lid is equipped with filter chamber and intercommunication the first wind gap and the second wind gap of filter chamber, first filtration piece is located in the filter chamber, the air current passes through in proper order first wind gap first filtration piece with the second wind gap gets into the installation cavity.

The utility model has the advantages that:

the utility model provides a fan and desk-top clean cigarette machine, this fan is through setting up the spiral case on the bottom plate, and the stator direct mount of subassembly of will blowing has saved the structure of the casing of original motor on the bottom plate, and the thickness of the casing of original motor has been saved to whole fan in thickness for the size of whole fan on thickness obtains reducing, is favorable to enlarging the application scene, can adapt to the frivolous development demand of cigarette machine thickness. In addition, the assembling process of the fan is completed after the blowing assembly is assembled in a mode that the rotor and the stator are matched, compared with the existing process of assembling the motor firstly and then assembling the fan, the assembling process is simplified, and the assembling efficiency is greatly improved.

Drawings

Fig. 1 is an exploded view of a blower according to an embodiment of the present invention;

fig. 2 is a schematic sectional structure view of a fan according to an embodiment of the present invention;

fig. 3 is a schematic view of an assembly structure of a fixed cylinder and a stator in an embodiment of the present invention;

fig. 4 is an exploded schematic view of the stationary cylinder and the stator in the embodiment of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

fig. 6 is a schematic structural view of an impeller according to an embodiment of the present invention, showing a first viewing angle;

fig. 7 is a schematic structural view of an impeller according to an embodiment of the present invention, illustrating a second view angle;

fig. 8 is a schematic view of an assembly structure of an impeller and a rotor according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a bottom plate in an embodiment of the present invention, showing a first view angle;

fig. 10 is a schematic structural view of a bottom plate in an embodiment of the present invention, showing a second view;

fig. 11 is a schematic view of an assembly structure of the bottom plate and the blowing assembly in the embodiment of the present invention;

fig. 12 is a schematic structural view of a cover body in an embodiment of the present invention;

fig. 13 is a schematic view of an internal structure of a fan according to an embodiment of the present invention, including an annular waterproof portion;

FIG. 14 is an enlarged view at B of FIG. 13;

fig. 15 is a schematic structural view of the table type smoke purifier in the embodiment of the present invention;

fig. 16 is an internal structure schematic diagram of a table type smoke purifying machine in the embodiment of the present invention.

In the figure:

x, the thickness direction;

1. a base plate; 11. a fixed cylinder; 111. clamping convex; 112. a limiting ring; 12. an annular table; 13. an air guide member; 131. a first side surface; 132. a top surface; 133. a second side surface; 14. a through hole; 15. a first flow guide member; 16. a first housing; 161. an isolation chamber; 17. a wire guide groove; 18. a first wire guide hole; 19. a second wire guide;

2. a volute casing coaming; 21. a volute tongue; 22. an air outlet;

3. a cover body; 31. a second flow guide member; 32. a filter chamber; 33. a first tuyere; 34. a second tuyere; 35. a control chamber; 36. a second housing;

4. a blowing assembly; 41. a stator; 411. installing an inner cylinder; 412. a first card slot; 413. a second card slot; 4131. a non-return portion; 414. a Hall plate; 42. a rotor; 43. an impeller; 431. a support table; 4311. mounting grooves; 4312. buckling; 4313. an annular waterproof portion; 432. a rotating shaft; 433. a blade;

51. a first bearing; 52. a second bearing; 53. an elastic member; 54. a clamp spring; 55. a gasket;

61. a first filter member; 62. a second filter member; 63. a protective cover; 64. and an oil storage tank.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

Example one

As shown in fig. 1-16, the present embodiment provides a blower that includes a blower housing including a base plate 1, a volute enclosure 2, and a cover 3, and a blower assembly 4. The volute enclosing plate 2 is arranged on the bottom plate 1, the cover body 3 is covered on the bottom plate 1, and the cover body 3, the bottom plate 1 and the volute enclosing plate 2 enclose a mounting cavity; the blowing assembly 4 is positioned in the installation cavity, the blowing assembly 4 comprises a stator 41, a rotor 42 and an impeller 43, wherein the stator 41 is arranged on the bottom plate 1; the rotor 42 is in rotational engagement with the stator 41; the impeller 43 is fixedly connected with the rotor 42.

This fan is through setting up the spiral case on bottom plate 1, and the stator 41 direct mount that will blow subassembly 4 has saved the structure of the casing of original motor on bottom plate 1, and the thickness of the casing of original motor has been saved to whole fan in thickness for whole fan size in thickness obtains reducing, is favorable to enlarging the application scene, can adapt to the development demand that cigarette machine thickness is frivolous. In addition, the rotor 42 and the stator 41 are matched, so that the assembling process of the fan is completed after the air blowing assembly 4 is assembled, compared with the existing process of assembling the motor firstly and then assembling the fan, the assembling process is simplified, and the assembling efficiency is greatly improved.

In this embodiment, the bottom plate 1 is equipped with the fixed cylinder 11, and the stator 41 is equipped with the installation inner tube 411, and the fixed cylinder 11 is located to installation inner tube 411 cover, and the impeller 43 includes support frame and blade 433, and the circumference of support frame is located to blade 433, and the one end of support frame is rotated with the one end of fixed cylinder 11 and is connected, and the other end of support frame is rotated with the other end of fixed cylinder 11 and is connected. The setting of solid fixed cylinder 11 makes the both ends of support frame can obtain effectual rotation and connect, consequently for impeller 43's firm degree increases, avoids rotating the process and produces and beats, has reduced the noise of fan.

Regarding the structure of the supporting frame, in this embodiment, specifically, the supporting frame includes a supporting table 431 and a rotating shaft 432, the supporting table 431 is cup-shaped, a mounting groove 4311 is provided inside the supporting table 431, the rotor 42 is embedded in the mounting groove 4311 and is sleeved on the periphery of the stator 41, one end of the rotating shaft 432 is connected to the bottom of the mounting groove 4311, the rotating shaft 432 is inserted into the fixed cylinder 11, one end of the rotating shaft 432 is rotatably connected to one end of the fixed cylinder 11, and the other end of the rotating shaft 432 is rotatably connected to the other end of the fixed cylinder 11. With the arrangement of the structure, on the first hand, the rotor 42 and the support platform 431 are overlapped in the thickness direction X of the motor, so that the thickness dimension of the fan is reduced; in the second aspect, the contact area between the supporting platform 431 and the rotor 42 is enlarged, and the connection firmness between the supporting platform 431 and the rotor 42 is improved; in the third aspect, both ends of the rotary shaft 432 are rotatably connected in the fixed cylinder 11, so that the diameter of the blower is as compact as possible. In the present embodiment, the rotor 42 includes a cylindrical permanent magnet.

In order to improve the assembling efficiency of the rotor 42 and the supporting platform 431, in the embodiment, the rotor 42 is clamped in the mounting groove 4311. Specifically, a plurality of buckles 4312 are evenly distributed on the side wall of the mounting groove 4311, each buckle 4312 comprises a clamping strip extending along the axis direction of the mounting groove 4311 and a clamping table arranged at one end of the groove bottom of the mounting groove 4311, the clamping strip extends towards the center direction of the mounting groove 4311, one end of the rotor 42 abuts against the groove bottom of the mounting groove 4311, and the other end of the rotor is clamped by the clamping tables. Wherein, the number of the buckles 4312 is six. Of course, in other embodiments, the number of the buckles 4312 may also be three or five, or other numbers, which is not limited to this.

The one end of a fixed section of thick bamboo 11 is equipped with first mount pad, and the other end of a fixed section of thick bamboo 11 is equipped with the second mount pad, and the fan includes first bearing 51 and second bearing 52, and the one end of pivot 432 is located to the first bearing 51 cover, and the other end of pivot 432 is located to the second bearing 52 cover, and first bearing 51 inlays and locates first mount pad, and second bearing 52 inlays and locates in the second mount pad. The setting of two bearings makes the stability when pivot 432 rotates better, can not produce the runout to reduce the noise and prolong the life of fan, the reliability is better.

The blower further comprises an elastic member 53, the elastic member 53 is arranged between the first bearing 51 on the fixed cylinder 11 and the support frame, and the elastic member 53 is used for enabling the support frame to be far away from the bottom plate 1. The arrangement of the elastic part 53 reduces the precision requirement on the assembly size between the rotating shaft 432 and the two mounting seats, reduces the processing cost and improves the mounting efficiency.

In this embodiment, the fan further includes a gasket 55, the rotating shaft 432 is sleeved with the gasket 55, the elastic member 53 includes a spring, the rotating shaft 432 is sleeved with the spring, one end of the spring abuts against the inner ring of the first bearing 51, the other end of the spring abuts against one end of the gasket 55, and the other end of the gasket 55 abuts against the bottom of the mounting groove 4311. In this embodiment, the gasket 55 is made of stainless steel. The support platform 431 is made of plastic. The gasket 55 prevents the spring from abutting against the bottom of the mounting groove 4311, thereby prolonging the service life of the support platform 431.

Regarding the fixing of the other end of the rotating shaft 432, optionally, an annular groove is provided at one end of the rotating shaft 432 close to the support frame, the snap spring 54 is snapped in the annular groove, and the outer diameter of the snap spring 54 is larger than the inner diameter of the fixed cylinder 11. In this embodiment, the outside diameter of the circlip 54 is larger than the inside diameter of the second bearing 52 and smaller than the outside diameter of the second bearing 52. The snap spring 54 and the annular groove are simple in structure and firm in connection. The diameter and width of the annular groove are matched with the inner diameter and thickness of the clamp spring 54. Wherein, be equipped with gasket 55 between jump ring 54 and the second bearing 52, in this embodiment, the external diameter size of jump ring 54 is greater than the internal diameter size of gasket 55.

In this embodiment, in order to improve the mounting efficiency, it is preferable that the fixed cylinder 11 and the stator 41 are engaged with each other with respect to the connection manner between the stator 41 and the fixed cylinder 11. Specifically, one of the outer side wall of the fixed cylinder 11 and the inner side wall of the installation inner cylinder 411 is provided with a clamping protrusion 111, and the other is provided with a clamping groove; the locking protrusion 111 is locked with the locking groove. In this embodiment, the locking protrusion 111 is disposed on the outer sidewall of the fixed cylinder 11, and the locking groove is disposed on the inner sidewall of the inner installation cylinder 411 of the stator 41. Specifically, the card slot includes a first card slot 412 and a second card slot 413 with different opening directions, and the card projection 111 can be inserted into the first card slot 412 and be stopped at the corners of the second card slot 413 and the second card slot 413, and then enter the second card slot 413 by screwing. In this embodiment, the fixing cylinder 11 is provided with a locking protrusion 111, and the stator 41 is provided with a first locking groove 412 and a second locking groove 413 with mutually perpendicular opening directions. The first engaging groove 412 and the second engaging groove 413 are inverted 7-shaped, preferably, the opening direction of the second engaging groove 413 is related to the rotation direction of the rotor 42, and in the rotation process of the rotor 42, the locking protrusion 111 needs to abut against the groove bottom of the second engaging groove 413, so that the locking protrusion 111 is prevented from entering the first engaging groove 412 after being separated from the second engaging groove 413, and the stator 41 is separated from the fixed cylinder 11. For example, in normal operation, when the rotor 42 rotates counterclockwise, the stator 41 tends to rotate clockwise, and the groove bottom of the second locking groove 413 needs to abut against the locking protrusion 111, so the opening direction of the second locking groove 413 should face clockwise.

Further, the side wall of the second locking groove 413 facing the bottom plate 1 is provided with a check part 4131, and the check part 4131 can stop the locking protrusion 111 from coming out of the second locking groove 413. The check portion 4131 is disposed on one sidewall of the second locking groove 413 to reduce the size of the opening of the second locking groove 413, and the check portion 4131 is elastically deformed during the insertion of the locking protrusion 111 into the second locking groove 413. The check portion 4131 is disposed on a side wall of the second catching groove 413 near the retainer ring 112.

In this embodiment, the bottom plate 1 is provided with an annular table 12, the fixed cylinder 11 is arranged in the annular table 12, and one end of the annular table 12, which is far away from the bottom plate 1, is located in the mounting groove 4311. In this embodiment, the power assembly includes a stator 41 and a rotor 42 for powering the impeller 43, and is located partially within the annular table 12 to avoid friction between the airflow and the power assembly. In this embodiment, the annular table 12 prevents the airflow from entering the mounting groove 4311, and avoids the friction with the stator 41, resulting in the generation of vortex, thereby improving the air volume performance of the blower.

In the fan, the larger the size of the air duct in the thickness direction X is, the smoother the air outlet of the fan is, and the larger the air volume is; however, if the clearance between the impeller 43 and the bottom plate 1 is too large, the pressure is easily released, and the capability of the fan to overcome the system pressure is weakened. In order to increase the air volume and not reduce the pressure, in this embodiment, a limiting ring 112 is disposed at one end of the fixing cylinder 11 close to the bottom plate 1, one end of the stator 41 abuts against the limiting ring 112, the bottom plate 1 is disposed with an air guide 13, one end of the air guide 13 is connected to the volute tongue 21, the other end of the air guide 13 is connected to the annular table 12, and the air guide 13 is used for guiding the air flow in the air duct to the air outlet 22. It should be noted that, specifically, the outlet of the volute enclosing plate 2, the bottom plate 1 and the cover 3 are enclosed to form the air outlet 22. In this embodiment, the limiting ring 112 is arranged to increase the size of the air duct in the thickness direction X, so as to increase the air volume; in addition, the air guide 13 is arranged so that the air flow can be guided to the air outlet 22 when flowing through the air guide 13, that is, the air guide 13 separates the initial end and the tail end of the air duct, and since the gap between the air guide 13 and the impeller 43 is smaller than the gap between the impeller 43 and the bottom plate 1, the flow of the air flow which crosses the air guide 13 and enters the initial end of the air duct can be greatly reduced, the reduction of the air pressure is avoided, and the strong capability of the fan for overcoming the pressure is ensured. The end of the air duct is adjacent the outlet 22. In this embodiment, the gap between the air guide 13 and the impeller 43 is 2mm to 4mm. In this embodiment, the annular table 12 is provided to prevent air from entering the mounting groove 4311, avoid eddy current, improve the air volume performance of the fan, and reinforce the air guide 13.

In this embodiment, the air guide 13 includes the boss that is located bottom plate 1 and towards one side of installation cavity, the boss is fan-shaped, the boss includes first side 131, top surface 132 and second side 133 that connect gradually, annular platform 12 is connected to the one end of first side 131, volute tongue 21 is connected to the other end of first side 131, first side 131 is used for leading the air current in the wind channel to air outlet 22, annular platform 12 is connected to the one end of top surface 132, volute bounding wall 2 is connected to the other end of top surface 132, annular platform 12 is connected to the one end of second side 133, volute bounding wall 2 is connected to the other end of second side 133. In this embodiment, the distance between the top surface 132 and the impeller 43 is 2mm to 4mm. Preferably, the gap between the top surface 132 and the impeller 43 is 2.5mm. The first side 131 of the boss is configured to direct airflow to the outlet 22; in addition, the structure of the boss can increase the strength of the base plate 1.

Specifically, the first side surface 131 is an inclined surface, and the first side surface 131 is inclined in a direction away from the base plate 1 toward the rotation direction of the impeller 43. The inclined surface structure facilitates smooth airflow and prevents generation of vortex at the connection between the first side 131 and the bottom plate 1.

In addition, the second side surface 133 is a slope, and the second side surface 133 is inclined toward the rotation direction of the impeller 43 in a direction close to the base plate 1. The provision of the second side 133 avoids the flow of air passing between the top 132 and the impeller 43 from creating a vortex during entry into the initial end of the air duct.

In this embodiment, the bottom plate 1 is provided with a plurality of through holes 14 penetrating through the bottom plate 1. By means of the arrangement of the through holes 14, noise generated by air flow can be absorbed by the sound absorption material on the back through the through holes 14, so that the noise of the fan is reduced, and the silence of the fan is improved.

Furthermore, a sound absorption material is attached to one side of the bottom plate 1, which is far away from the installation cavity. In this embodiment, the sound absorbing material may be a sound absorbing plate or a sound absorbing cotton.

In order to improve the stability of the airflow at the air outlet 22, in this embodiment, the bottom plate 1 is provided with a first guiding member 15, the cover 3 is provided with a second guiding member 31, and the first guiding member 15 and the second guiding member 31 are both located in the air outlet 22. In this embodiment, the first flow guiding member 15 and the second flow guiding member 31 are both strip-shaped structures. Wherein, first water conservancy diversion spare 15 is equipped with a plurality of, and a plurality of first water conservancy diversion spare 15 is the form distribution of dispersing along the air-out direction, and second water conservancy diversion spare 31 is equipped with a plurality of, and a plurality of second water conservancy diversion spare 31 are relative and parallel with a plurality of first water conservancy diversion spare 15 one-to-one. The arrangement of the plurality of flow guide pieces can separate and guide the airflow at the air outlet 22, so that the flowing stability of the airflow is improved. In addition, the first flow guide part 15 and the second flow guide part 31 are distributed in a divergent manner along the air outlet direction, which is beneficial to reducing airflow vortex, thereby reducing noise generated in the airflow flowing process.

Generally, the fan will be applied to different range hood apparatuses, for example, in some application scenarios, the fan is applied to a table-top range hood used on a table, when in use, the air outlet 22 is located at the upper end of the fan, and the opening is upward, so that an operator may accidentally spill liquid into the air outlet 22 during a cooking process, and when the liquid enters the fan, the liquid may enter the inside of the rotor 42 or even the winding of the stator 41 along the air duct, causing an electrical leakage hazard to the fan. Because the air outlet 22 is just opposite to the blades 433 of the impeller 43, the blades 433 provide power for pushing the air flow to move, and if the blades 433 are shielded, the flow of the air flow can be influenced, so that the working performance of the fan is influenced. Under the prerequisite of not sheltering from blade 433, in this embodiment, shelter from power component, specifically, the mounting groove 4311 and the annular table 12 that adopt brace table 431 wrap up power component, in addition, the one end that bottom plate 1 was kept away from to annular table 12 is located mounting groove 4311, and the diameter size of at least partial outline increases along the direction of keeping away from bottom plate 1 gradually for the liquid that gets into from air outlet 22 drips behind annular table 12, can flow to the direction that is close to bottom plate 1, and finally drips downwards, avoids getting into the protection chamber that annular table 12 and mounting groove 4311 formed. In this embodiment, the power assembly includes a stator 41 and a rotor 42, wherein the stator 41 is disposed on the bottom plate 1, the annular table 12 disposed on the bottom plate 1 surrounds the stator 41, and the rotor 42 is embedded in the mounting groove 4311.

In other embodiments of the present embodiment, the diameter of the outer contour of the annular table 12 decreases first and then increases along the direction away from the bottom plate 1, the annular table 12 is in a spindle structure as a whole, the smallest diameter of the annular table 12 is located between the bottom plate 1 and the support platform 431 in the thickness direction X, and one end of the annular table 12 away from the bottom plate 1 is located in the mounting groove 4311. Annular platform 12 is the setting of spindle structure, make liquid drop on the annular platform 12 surface of spindle structure after getting into from air outlet 22, and then can be to the position gathering of annular platform 12 diameter minimum, and can't bear the weight of at annular platform 12 and drop downwards, because on thickness direction X, annular platform 12 diameter minimum department is located between bottom plate 1 and the brace table 431, liquid can't get into in the mounting groove 4311 when dripping down, can not exert an influence to the rotor 42 in the mounting groove 4311, the security of fan has been improved. In this embodiment, the inner diameter of the mounting groove 4311 is constant and then increases along the direction away from the bottom of the groove.

The supporting frame is provided with an annular waterproof portion 4313, and the annular table 12 is partially arranged in the annular waterproof portion 4313 in a penetrating manner. This arrangement makes the annular waterproof portion 4313 and the annular table 12 form a telescopic structure, and ensures that the liquid entering from the air outlet 22 cannot enter the mounting groove 4311. In this embodiment, the annular waterproof portion 4313 is disposed on an inner wall of the mounting groove 4311.

Further, the annular water-repellent portion 4313 is inclined to the annular table 12 in a direction close to the bottom plate 1, that is, in a direction close to the bottom plate 1, and the inner diameter dimension of the annular water-repellent portion 4313 is gradually reduced. By means of the structure, the liquid can be guided to the annular table 12 more smoothly and further flows to the position with the smallest diameter on the annular table 12.

In this embodiment, the annular table 12 is integrally formed with the base plate 1. The integrated forming enables the annular table 12 and the bottom plate 1 to be firmly connected, and the assembling efficiency is improved to a certain extent. Of course, in other embodiments of the present embodiment, the annular table 12 and the bottom plate 1 may be screwed or clamped before, as long as the sealing performance between the two can be ensured, and the specific connection manner is not limited thereto.

In this embodiment, a porous material is attached to the outer side wall of the annular table 12. A porous material is attached to the outer periphery of the support base 431. The adhesion of above-mentioned material can cut apart and adsorb the liquid that drips, leads to splash all around to splash because of gravity reason when avoiding liquid to drip, has further improved the waterproof performance of fan. In this embodiment, the porous material may be selected from sponge or other cloth or rubber with a porous structure.

Example two

The embodiment also provides a table type smoke purifying machine, which comprises a first filter piece 61 and the fan in any one of the first embodiment, the cover body 3 is provided with a filter cavity 32, a first air opening 33 and a second air opening 34 which are communicated with the filter cavity 32, the first filter piece 61 is arranged in the filter cavity 32, and external air flow enters the installation cavity after sequentially passing through the first air opening 33, the first filter piece 61 and the second air opening 34. With the arrangement of the first filter element 61, the air passing through the table type smoke purifying machine is purified by the first filter element 61, and the air purifying effect is improved. In addition, the arrangement of the filter cavity 32 can play a role in protecting the first filter piece 61, avoid being impacted by external force, and is favorable for improving the aesthetic property of the table type smoke purifying machine.

In order to improve the purifying efficiency of the table type smoke purifier, in the present embodiment, it is preferable that the cover 3 includes the second filter 62, and the second filter 62 is provided in the first tuyere 33. In this embodiment, the second filter 62 includes a grill member integrally formed on the inner sidewall of the first tuyere 33 to prevent large-sized articles from entering the first tuyere 33; and the shape of grid structure can shelter from first filter 61 for the outward appearance of desk-top clean cigarette machine is more pleasing to the eye.

Optionally, the desk top smoke purifier comprises a protective cover 63, and the protective cover 63 can cover the cover body 3 and shield the first air opening 33. The protective cover 63 is arranged to shield the first air opening 33, and when the desk type smoke purifying machine does not work, the first air opening 33 can be shielded, so that on one hand, the filter pieces and other electronic elements in the desk type smoke purifying machine are prevented from being polluted; on the other hand, the aesthetic property of the table type smoke purifying machine is improved.

In this embodiment, the protecting cover 63 is rotatably disposed on the cover 3 and has a first position for opening the first air opening 33 and a second position for closing the first air opening 33. This arrangement improves the ease of operation of the protective cover 63. In order to further improve the convenience of the operation of the protecting cover 63, in the present embodiment, it is preferable that a damper is provided between the protecting cover 63 and the lid 3, so that the protecting cover 63 can be maintained at the first position or the second position by the damper, so that the protecting cover 63 can be maintained in a state when in use, and a member for supporting the protecting cover 63 is not required, and the protecting cover is simple in structure, easy to manufacture, and low in cost.

In this embodiment, the cover 3 optionally includes an oil reservoir 64, and the oil reservoir 64 is located below the first filter 61. The setting up of oil storage tank 64 can be collected filterable greasy dirt, has reduced the frequency of first filtration piece 61 clearance, and the later maintenance process only need clear up the greasy dirt in the oil storage tank 64 can, improved the convenience of maintaining. In this embodiment, the oil storage tank 64 is clamped in the cover 3. In other embodiments of this embodiment, a drawing notch is provided on one side of the cover 3, and the oil storage tank 64 can be drawn and matched with the cover 3 from the drawing notch, similar to a drawer structure.

In this embodiment, a control cavity 35 is provided inside the cover 3, and the control board is provided in the control cavity 35. Be equipped with the controller on the control panel for the operation of the switch of control desk-top clean cigarette machine and other each function, the setting up of control chamber 35 can provide the protection for the control panel, avoids receiving the pollution of greasy dirt.

In this embodiment, the periphery of bottom plate 1 is equipped with first shell 16, form between first shell 16 and the spiral case bounding wall 2 and keep apart the chamber 161, bottom plate 1 is equipped with metallic channel 17 in the boss one side that deviates from the installation cavity, bottom plate 1 is equipped with first wire guide 18 and second wire guide 19, first wire guide 18 is located the one end of metallic channel 17, second wire guide 19 is located the other end of metallic channel 17, connect the wire of stator 41, wear out from first wire guide 18, pass through metallic channel 17 in proper order, get into control chamber 35 and be connected with the control panel behind second wire guide 19 and the isolation chamber 161. By means of the arrangement, wiring in the air duct can be avoided, the utilization rate of the air duct is improved, and noise is reduced after a wire and air flow collide with each other; in addition, the wire guide groove 17 is arranged at the back of the lug boss, so that the lug boss structure is effectively utilized, the space is saved, and the thickness size of the table type smoke purifying machine is also saved.

In this embodiment, the second casing 36 is disposed on the periphery of the cover 3, and when the cover 3 covers the bottom plate 1, the second casing 36 covers the periphery of the first casing 16. The first housing 16 supports the second housing 36, so that the second housing 36 is more firm; in addition, since the second casing 36 serves as an appearance housing and the first casing 16 is supported and located at the inner side, the first casing 16 may have lower glossiness than the second casing 36 to reduce cost.

In this embodiment, the blower further includes a hall plate 414, the hall plate 414 is connected to the stator 41 and is used for controlling the rotation of the rotor 42, and the hall plate 414 is connected to the control board through a wire. The control board transmits a control signal to the hall plate 414, so as to control the rotation parameter of the rotor 42.

In order to reduce the noise of the table type smoke purifier, in this embodiment, the isolation cavity 161 is filled with a sound absorbing material. The sound absorption material can be sponge or sound absorption cotton and other sound absorption materials.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. Fan, its characterized in that includes:

a base plate (1);

a volute coaming plate (2), the volute coaming plate (2) is arranged on the bottom plate (1),

the cover body (3) is covered on the bottom plate (1), and an installation cavity is formed by the cover body (3), the bottom plate (1) and the volute casing plate (2) in an enclosing manner;

a blower assembly (4) located within the mounting cavity, the blower assembly (4) comprising:

a stator (41) provided on the base plate (1);

a rotor (42) in rotational engagement with the stator (41);

and the impeller (43) is fixedly connected with the rotor (42).

2. The blower according to claim 1, wherein the bottom plate (1) is provided with a fixed cylinder (11), the stator (41) is provided with an installation inner cylinder (411), the installation inner cylinder (411) is sleeved on the fixed cylinder (11), the impeller (43) comprises a support frame and blades (433), the blades (433) are arranged in the circumferential direction of the support frame, one end of the support frame is rotatably connected with one end of the fixed cylinder (11), and the other end of the support frame is rotatably connected with the other end of the fixed cylinder (11).

3. The blower according to claim 2, wherein the support frame comprises a support table (431) and a rotating shaft (432), the support table (431) is cup-shaped, a mounting groove (4311) is formed in the support table (431), the rotor (42) is embedded in the mounting groove (4311) and sleeved on the periphery of the stator (41), one end of the rotating shaft (432) is connected to the bottom of the mounting groove (4311), the rotating shaft (432) penetrates through the fixed cylinder (11), one end of the fixed cylinder (11) is provided with a first bearing (51), the other end of the fixed cylinder (11) is provided with a second bearing (52), one end of the rotating shaft (432) is embedded in the first bearing (51), and the other end of the rotating shaft (432) is embedded in the second bearing (52).

4. The blower according to claim 3, wherein an annular groove is formed in one end, close to the support frame, of the rotating shaft (432), a clamp spring (54) is clamped in the annular groove, and the outer diameter of the clamp spring (54) is larger than the outer diameter of the inner ring of the second bearing (52) and smaller than the inner diameter of the outer ring of the second bearing.

5. The blower according to claim 3, wherein the rotor (42) is clamped in the mounting groove (4311); and/or

The fixed cylinder (11) is clamped with the stator (41).

6. The blower according to claim 2, further comprising an elastic member (53), wherein the elastic member (53) is disposed between the fixed cylinder (11) and the support frame, and the elastic member (53) is used for moving the support frame away from the base plate (1).

7. The fan according to any one of claims 3 to 5, wherein a limiting ring (112) is disposed at an end of the fixed cylinder (11) close to the bottom plate (1), an end of the stator (41) abuts against the limiting ring (112), the bottom plate (1) is provided with an annular table (12), the fixed cylinder (11) is disposed in the annular table (12), an end of the annular table (12) far away from the bottom plate (1) is located in the mounting groove (4311), the bottom plate (1) is provided with a wind guide member (13), one end of the wind guide member (13) is connected to a volute tongue (21), the other end of the wind guide member (13) is connected to the annular table (12), and the wind guide member (13) is configured to guide airflow in an air duct to an air outlet (22).

8. The fan according to claim 7, characterized in that the outer contour of the annular platform (12) decreases in diameter and then increases in diameter in a direction away from the bottom plate (1) to form a spindle structure, the diameter of the annular platform (12) is at the minimum in the thickness direction (X) between the bottom plate (1) and the support platform (431), and one end of the annular platform (12) away from the bottom plate (1) is located in the mounting groove (4311).

9. The fan according to any of the claims 1 to 6, wherein the base plate (1) is provided with a first flow guide member (15), the cover (3) is provided with a second flow guide member (31), and the first flow guide member (15) and the second flow guide member (31) are arranged oppositely and are both positioned in the air outlet (22).

10. A bench type smoke purifying machine, characterized in that, comprising a first filter member (61) and the blower fan of any one of claims 1-9, the cover body (3) is provided with a filter chamber (32) and a first air port (33) and a second air port (34) which are communicated with the filter chamber (32), the first filter member (61) is arranged in the filter chamber (32), and the air flow passes through the first air port (33), the first filter member (61) and the second air port (34) in sequence and enters the installation chamber.

Images