CN214221562U - Induced draft device - Google Patents

Abstract

The utility model relates to a fan technical field, concretely relates to induced draft device. The induced draft device includes: a wiring element; the bottom of the support penetrates through the support to form a hollow cavity; at least one profiling lug formed by extending the support outwards; a wiring groove suitable for wiring of line elements is arranged on the outer surface of the profiling lug; and a support wire passing hole is formed in the support corresponding to the extending direction of the wire distributing groove in a penetrating mode, and the support wire passing hole is suitable for enabling a line element in the wire distributing groove to penetrate into the hollow cavity. The utility model provides an induced draft device is through wearing to establish the wiring inslot with circuit component to cross the line hole via the support and penetrate in the cavity intracavity, thereby avoid circuit component's the exposed condition, improve induced draft device's aesthetic measure, avoid the damaged condition of circuit component epidermis to take place, reduce the potential safety hazard.

Description

Induced draft device

Technical Field

The utility model relates to a fan technical field, concretely relates to induced draft device.

Background

The electric fan is used as a household appliance commonly used in summer, a circuit element is arranged on the electric fan in a long way, however, the circuit element of the conventional electric fan is exposed, so that the electric fan is not attractive in appearance, and when the circuit element is exposed outside, potential safety hazards are easily caused when the surface of the circuit element is damaged.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is directed to a wind-guiding device for a vehicle, which overcomes the exposed defects of the circuit components in the prior art and provides a wind-guiding device capable of hiding the circuit components.

In order to solve the technical problem, the utility model provides a pair of induced draft device, include:

a wiring element;

the bottom of the support penetrates through the support to form a hollow cavity;

at least one profiling lug formed by extending the support outwards;

a wiring groove suitable for wiring of line elements is arranged on the outer surface of the profiling lug; and a support wire passing hole is formed in the support corresponding to the extending direction of the wire distributing groove in a penetrating mode, and the support wire passing hole is suitable for enabling a line element in the wire distributing groove to penetrate into the hollow cavity.

Optionally, the method further includes:

the motor fixing plate is suitable for being fixedly connected with the support; and a wiring through hole is formed in the motor fixing plate and is suitable for enabling a circuit element in the hollow cavity to further penetrate through the motor fixing plate and to be communicated with an external conductive element.

Optionally, the routing via hole penetrates through the motor fixing plate and forms an annular groove structure, and the annular groove structure is suitable for avoiding the circuit element when the motor fixing plate rotates.

Optionally, the opening angle of the ring groove structure is matched with the rotation angle of the motor fixing plate.

Optionally, the ring groove structure is configured as an arc-shaped ring groove surrounding the rotation axis of the motor fixing plate.

Optionally, at least one wire clamping rib is arranged in the wiring groove, and the wire clamping rib is suitable for being in interference fit with the line element.

Optionally, the method further includes:

the motor is fixed on the motor fixing plate and at least partially arranged in a hollow cavity formed by the support;

and the assembly supporting piece is matched with a motor shaft of the motor and enables the motor fixing plate and the assembly supporting piece to rotate relatively under the driving force of the motor.

Optionally, a rotating shaft is arranged on the motor fixing plate, a rotating shaft assembling portion is arranged on the assembling supporting piece corresponding to the rotating shaft, and the rotating shaft assembling portion can be in relatively rotating insertion fit.

Optionally, at least one limit stop is arranged on the motor fixing plate, a limit boss is arranged on the assembly support piece corresponding to the limit stop, and the limit stop is suitable for limiting the rotation angle of the limit boss.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an induced draft device is through wearing to establish the wiring inslot with circuit component to cross the line hole via the support and penetrate in the cavity intracavity, thereby avoid circuit component's the exposed condition, improve induced draft device's aesthetic measure, avoid the damaged condition of circuit component epidermis to take place, reduce the potential safety hazard.

2. The utility model provides an induced draft device, through be formed with on the motor fixed plate and walk the line via hole, thereby it is convenient circuit component passes the motor fixed plate communicates with outside conductive element, guarantees being qualified for the next round of competitions of circuit component.

3. The utility model provides an induced draft device, the line via hole structure of walking on the motor fixed plate is arc annular structure, and arc annular structure set up length and set up angle and motor fixed plate around the swing distance of centre of turning round of shaking the head and the angle phase-match of shaking the head to make the motor fixed plate when relative assembly support piece rotates, line component and motor fixed plate do not take place to interfere, make line component not have the grinding line phenomenon when the fan shakes the head.

4. The utility model provides an induced draft device, through with card line rib with circuit component interference fit to it is fixed firm to guarantee circuit component.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the air inducing device according to the present invention in an exploded state;

fig. 2 is a perspective view of the motor fixing plate of the present invention;

fig. 3 is a front view of the motor fixing plate of the present invention;

fig. 4 is a top view of the motor fixing plate of the present invention;

FIG. 5 is a perspective view of the assembled support of the present invention;

FIG. 6 is a front view of the mounting support of the present invention;

FIG. 7 is a top view of the mounting support of the present invention;

fig. 8 is a schematic view of the installation state of the motor fixing plate and the assembly support member of the present invention;

fig. 9 is a schematic view of the installation state of the motor, the motor fixing plate and the assembling support member of the present invention;

fig. 10 is a bottom view of the handpiece holder of the present invention;

FIG. 11 is a first perspective view of the head frame of the present invention;

fig. 12 is a second perspective view of the handpiece holder of the present invention.

Description of reference numerals:

10-a machine head bracket, 11-a bracket threaded hole, 12-a bracket wire passing hole, 13-an inserting male head, 14-a profiling lug, 15-a support and 16-a wiring groove;

20-a line component; 30-a motor;

40-a motor fixing plate, 41-a bracket assembling part, 42-a wiring via hole, 43-a motor shaft via hole, 44-a motor assembling part, 45-a rotating shaft, 46-a clamping part, 47-a limit stop, 48-a splicing female head and 49-an abutting part;

50-assembly supporting part, 51-buckle, 52-oil groove, 53-limit boss, 54-motor shaft mounting part, 55-rotating shaft assembly part, 56-motor shaft force application shaft, 57-supporting part; and 60, installing a pipe.

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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example one

As shown in fig. 1 to 12, the present embodiment provides an induced draft apparatus, including:

a line component 20;

a hollow cavity is formed at the bottom of the support 15 in a penetrating manner;

at least one profiling lug 14 formed by extending the support 15 outwards;

a wiring groove 16 suitable for wiring of a line element 20 is arranged on the outer surface of the profiling lug 14; a bracket wire-passing hole 12 is formed on the support 15 corresponding to the extending direction of the wiring groove 16, and the bracket wire-passing hole 12 is suitable for enabling a line element 20 in the wiring groove 16 to penetrate into the hollow cavity.

In this embodiment, the profiling lug 14 is configured to be an arc-shaped structure, a plurality of clamping grooves are formed in the outer surface of the arc-shaped structure, the circuit element 20 is clamped, and preferably, the profiling lug 14 includes an arc-shaped lug structure which is symmetrical with respect to two sides of the support 15, the support 15 is arranged at an intermediate position, wherein the support 15 and the profiling lug 14 are integrally formed, the plurality of clamping grooves are formed in the outer surface of the profiling lug 14, the plurality of clamping grooves include a wiring groove 16 suitable for wiring of the circuit element 20, a bracket wiring hole 12 is formed in the support 15 in a penetrating manner, and the bracket wiring hole 12 is suitable for enabling the circuit element 20 in the wiring groove 16 to penetrate into the hollow cavity.

The induced draft device that this embodiment provided, through wearing to establish line component 20 in trough 16 to cross line hole 12 via the support and penetrate in the cavity, thereby avoid the exposed condition of line component, improve the aesthetic measure of induced draft device, avoid the damaged condition of line component epidermis to take place, reduce the potential safety hazard.

Specifically, the method further comprises the following steps:

a motor fixing plate 40 adapted to be fixedly connected with the support 15; the motor fixing plate 40 is formed with a routing via hole 42, and the routing via hole 42 is adapted to enable the circuit component 20 in the hollow cavity to further penetrate through the motor fixing plate 40 and communicate with an external conductive component.

According to the air inducing device provided by the embodiment, the routing through hole 42 is formed in the motor fixing plate 40, so that the circuit component 20 can conveniently penetrate through the motor fixing plate 40 and is communicated with an external conductive component, and the outgoing line of the circuit component 20 is ensured.

A wiring through hole 42 is formed on the motor fixing plate 40, so that the circuit component 20 inside the hollow cavity of the support 15 can pass through the wiring through hole 42 of the motor fixing plate 40 to other conductive components, such as a power supply or a control module.

Preferably, the routing via hole 42 penetrates through the motor fixing plate 40 in a vertical direction.

Specifically, the routing via hole 42 penetrates through the motor fixing plate 40 and forms a ring groove structure, and the ring groove structure is suitable for avoiding the circuit component 20 when the motor fixing plate 40 rotates.

Specifically, the opening angle of the ring groove structure is matched with the rotation angle of the motor fixing plate 40.

Specifically, the ring groove structure is configured as an arc-shaped ring groove that surrounds the rotation axis of the motor fixing plate 40.

The induced draft device that this embodiment provided, walk line via hole 42 on the motor fixed plate 40 and construct for arc annular structure, and the length of seting up of arc annular structure with set up angle and motor fixed plate 40 around shaking the head centre of rotation's swing distance and shake the head angle phase-match to make motor fixed plate 40 when relatively assembling support piece 50 and rotate, circuit component 20 does not take place to interfere with motor fixed plate 40, make circuit component 20 not have the abrasive wire phenomenon when the fan shakes the head.

Specifically, at least one wire clamping rib is arranged in the wiring groove 16, and the wire clamping rib is suitable for being in interference fit with the line element 20.

According to the air inducing device provided by the embodiment, the line clamping ribs are in interference fit with the line element 20, so that the line element 20 is firmly fixed.

Example two

As shown in fig. 1 to 12, the induced draft device provided in this embodiment further includes:

a handpiece support 10;

preferably, in this embodiment, the handpiece holder 10 includes:

the support 15 is directly or indirectly connected with the motor fixing plate 40; and

and at least one profiling lug 14 formed by extending outwards from the support 15.

The induced draft device still includes:

the motor 30 is fixed on the motor fixing plate 40 and is at least partially arranged in the hollow cavity formed by the support 15;

the motor fixing plate 40 is suitable for fixing the motor 30 and is fixedly connected with the machine head bracket 10; and

and an assembling supporter 50 which is fitted with a motor shaft of the motor 30 and rotates the motor fixing plate 40 and the assembling supporter 50 relative to each other under the driving force of the motor 30.

The handpiece holder 10 and the motor fixing plate 40 at least partially surround the motor 30. Through enclosing motor 30 the aircraft nose support 10 with the surrounding cavity that motor fixed plate 40 encloses to play the covering and the protection to motor 30, improve aesthetic measure, guarantee the motion effect.

The induced draft device that this embodiment provided, through with motor fixed plate 40 and motor 30 with head support 10 fixed connection to under the drive of motor 30, make motor fixed plate 40 with assembly support piece 50 takes place relative rotation, thereby drives head support 10 rotates, plays the effect of shaking the head, through motor 30 direct drive assembly support piece 50, and under reaction force, makes motor fuselage and motor fixed plate 40, head support 10 synchronous rotation, and the drive mode is direct, assembles simply, and the structure is reliable.

As some modified embodiments, the motor fixing plate 40 may be configured as a plate or a cylinder or a frame structure or other special-shaped structures, and here, the motor fixing plate 40 is taken as an example of a cylindrical form, when the motor fixing plate 40 is configured as a cylinder, the motor 30 may be fixed inside the motor fixing plate 40, and the assembly support 50 may also be at least partially located inside the motor fixing plate 40, a motor shaft of the motor 30 is connected with the assembly support 50 in a matching manner, under the driving force of the motor, the assembly support 50 arranged in a sleeved manner rotates relative to the motor fixing plate 40, and the motor fixing plate 40 drives the handpiece support 10 arranged thereon to rotate, preferably, the handpiece support 10 may be arranged at an upper, lower or external position of the motor fixing plate 40, and may even be arranged inside the motor fixing plate 40. The motor fixing plate 40 is configured in other shapes and will not be described in detail herein.

Specifically, the motor fixing plate 40 is provided with a rotating shaft 45, the assembly support 50 is provided with a rotating shaft assembly portion 55 corresponding to the rotating shaft 45, and the rotating shaft 45 and the rotating shaft assembly portion 55 can be in relatively rotatable insertion fit.

As shown in fig. 8 and 9, the motor fixing plate 40 is inserted into the assembly support member 50, specifically, the rotating shaft 45 provided on the motor fixing plate 40 is engaged with the rotating shaft assembly portion 55 provided on the assembly support member 50, and the rotating shaft 45 is engaged with the rotating shaft assembly portion 55, so that the motor fixing plate 40 and the assembly support member 50 can rotate relatively.

Preferably, the rotating shaft 45 is configured as a cylindrical shaft, and preferably configured as a hollow cylindrical shaft, and the motor fixing plate 40 can rotate with the axis of the rotating shaft 45 as a rotation axis; correspondingly, the rotating shaft assembly part 55 is configured as a cylindrical hole, and the rotating shaft 45 is configured as a cylindrical shaft which is inserted into and matched with the cylindrical hole configured by the rotating shaft assembly part 55, and the two parts rotate relatively around the same rotating axis, so that the motor fixing plate 40 can rotate relative to the assembly support part 50.

Specifically, sunken or the protrusion is formed with joint portion 46 on the rotation axis 45, it corresponds to on the assembly support piece 50 joint portion 46 is provided with buckle 51, buckle 51 be suitable for with joint portion 46 joint cooperation.

Specifically, the catch 51 and the catching portion 46 are adapted to be rotatably fitted in a catching state.

In this embodiment, the clamping portion 46 is constructed as a groove-shaped structure, and preferably constructed as a circular groove structure, so that the buckle 51 and the clamping portion 46 can be clamped together to achieve the mutual locking effect, and can rotate mutually.

Thereby ensuring that the motor fixing plate 40 and the assembly support 50 are locked to each other in the axial direction and satisfy the condition that they are rotatably fitted to each other in the circumferential direction around the rotating shaft 45.

The induced draft device that this embodiment provided, through buckle 51 with joint portion 46 joint cooperation, and make buckle 51 with joint portion 46 can rotation cooperation each other under the joint state, thereby guaranteed promptly motor fixed plate 40 with assembly support piece 50's mutual locking has satisfied simultaneously motor fixed plate 40 with assembly support piece 50's rotation cooperation each other reduces the risk that takes place to break away from at the rotation in-process, does not interfere the normal clear of rotation action again simultaneously.

Specifically, the assembly supporting member 50 is further provided with a motor shaft applying shaft 56, and the motor shaft applying shaft 56 is inserted and connected with the rotating shaft 45 in an assembly state; the motor shaft force applying shaft 56 is directly or indirectly connected with the motor shaft of the motor 30 in a matching manner, and under the driving force of the motor 30, the motor fixing plate 40 and the assembling supporting member 50 are relatively rotated.

In the air inducing device provided by this embodiment, the motor shaft applying shaft 56 is in fit connection with the motor shaft of the motor 30, so that the driving force of the motor 30 can directly act on the motor shaft applying shaft 56, and the motor shaft applying shaft 56 drives the assembling and supporting member 50, so that the assembling and supporting member 50 rotates relative to the motor 30, and further the assembling and supporting member 50 rotates relative to the motor fixing plate 40.

Preferably, the motor shaft acting shaft 56 is configured as a cylindrical shaft, and the rotating shaft 45 is sleeved outside the motor shaft acting shaft 56 and inside the rotating shaft assembling portion 55, so that the motor shaft acting shaft 56, the rotating shaft 45 and the rotating shaft assembling portion 55 are mutually abutted and matched, the structural strength is improved, the matching state is ensured, and the space occupation is saved.

Specifically, one end of the motor shaft forcing shaft 56 in the axial direction is provided with a motor shaft mounting part 54, and the motor shaft mounting part 54 is fixedly connected with the motor shaft of the motor 30.

Preferably, one of the motor shaft mounting part 54 and the motor shaft is configured in a spline form or a flat key form, and the other is correspondingly configured in a spline groove form or a flat key groove form, so as to realize the assembly connection.

As a variation, the motor shaft mounting portion 54 and the motor shaft may also be in a threaded connection, an adhesive connection, an interference fit, or the like.

Specifically, a supporting portion 57 is formed on the assembly supporting member 50, and an abutting portion 49 is formed on the motor fixing plate 40 corresponding to the supporting portion 57, and the abutting portion 49 is in contact fit with the supporting portion 57 in the gravity direction and is adapted to selectively rotate relatively.

Specifically, the supporting portion 57 and/or the abutting portion 49 are further provided with an oil groove 52, and the oil groove 52 is suitable for lubricating a contact surface between the abutting portion 49 and the supporting portion 57.

Preferably, the rotating shaft 45 is connected with the rotating shaft assembling portion 55 in a sleeved manner, and the bottom surface of the motor fixing plate 40 is at least partially abutted with the top surface of the assembling support member 50, and specifically, the supporting portion 57 formed on the assembling support member 50 is abutted with the abutting portion 49 formed on the motor fixing plate 40, so that the contact area plays a supporting role, the relative rotational motion of the motor fixing plate 40 and the assembling support member 50 is more stable, the deviation is avoided, the stress between the rotating shaft 45 and the rotating shaft assembling portion 55 is reduced, the fracture caused by long-term stress or uneven stress is avoided, the eccentric wear of the rotating shaft 45 and the rotating shaft assembling portion 55 can be reduced, and the stability of operation is ensured.

The induced draft device that this embodiment provided supporting part 57 and/or set up oil groove 52 on the butt portion 49, it is right motor fixed plate 40 with assembly support piece 50's contact surface lubricates, makes the contact area play supporting role, makes motor fixed plate 40 with assembly support piece 50's relative rotational motion is more stable, avoids taking place the skew, and reduce rotation axis 45 with atress between rotation axis assembly portion 55 avoids causing the fracture when long-term atress or atress are uneven, and can reduce rotation axis 45 with the eccentric wear phenomenon of rotation axis assembly portion 55 takes place, guarantees the stability of operation.

Specifically, at least one limit stop 47 is arranged on the motor fixing plate 40, a limit boss 53 is arranged on the assembly supporting member 50 corresponding to the limit stop 47, and the limit stop 47 is suitable for limiting the rotation angle of the limit boss 53.

The air inducing device provided by the embodiment is matched with the limit boss 53 through the corresponding limit stop 47, so that the rotation angle of the motor fixing plate 40 and the assembly support member 50 is limited, and the rotation exceeding limit is avoided.

Preferably, the motor fixing plate 40 is provided with two limit stoppers 47, the two limit stoppers 47 are disposed at an angle with respect to the axis of the rotating shaft 45, and the limit boss 53 is disposed between the two limit stoppers 47, so as to limit the rotation of the limit boss 53 between the two limit stoppers 47.

Specifically, a motor shaft through hole 43 is formed in the motor fixing plate 40, and the motor shaft through hole 43 penetrates through the motor fixing plate 40 and is suitable for allowing a motor shaft of the motor 30 to penetrate out.

The motor shaft through hole 43 facilitates the motor shaft of the motor 30 to pass through, so that the motor shaft of the motor 30 and the motor shaft force applying shaft 56 are assembled.

Specifically, the motor shaft through hole 43 penetrates the rotating shaft 45 and is disposed coaxially with the rotating shaft 45.

The air inducing device provided by the embodiment is characterized in that the motor shaft through hole 43 penetrates through the rotating shaft 45, the motor shaft through hole 43 is arranged coaxially with the rotating shaft 45, and therefore the motor shaft of the motor 30 is located inside the rotating shaft 45 in an assembly state, the rotating shaft 45 is connected with the motor shaft forcing shaft 56 in a sleeved mode, the assembly effect is guaranteed, the connection reliability is improved, the rotating centering performance is guaranteed, and the smooth degree of relative movement of the motor fixing plate 40 and the assembly supporting piece 50 is improved.

Specifically, the rotating shaft 45 is disposed at a first side of the motor fixing plate 40, and a bracket mounting portion 41 and a motor mounting portion 44 adapted to be mounted with the head bracket 10 and the motor 30 are disposed at a second side of the motor fixing plate 40.

The head bracket 10 and the motor fixing plate 40 are assembled through the bracket assembling portion 41, and the motor 30 and the motor fixing plate 40 are assembled through the motor assembling portion 44, so that the motor fixing plate 40, the head bracket 10 and the motor 30 are fixed, and synchronous rotation of the three is ensured.

Preferably, the bracket assembling portion 41 and the motor assembling portion 44 may be screw holes, and the handpiece bracket 10 and the motor fixing plate 40, the motor 30 and the motor fixing plate 40 are assembled by a screw structure.

Preferably, a bracket threaded hole 11 is further formed in the handpiece bracket 10, and the mounting is realized by matching the bracket threaded hole 11 with the bracket assembling portion 41.

Specifically, one of the head bracket 10 and the motor fixing plate 40 is provided with an inserting male head 13, the other is correspondingly provided with an inserting female head 48, and the inserting male head 13 and the inserting female head 48 are suitable for inserting and matching and positioning the head bracket 10 and the motor fixing plate 40.

Through the grafting of aircraft nose support 10 with motor fixed plate 40, realize prepositioning between them, fix for follow-up installation and provide the direction.

Preferably, the head support 10 is provided with a male plug 13, and the motor fixing plate 40 is correspondingly provided with a female plug 48. In this embodiment, be provided with two public heads 13 of pegging graft on the aircraft nose support 10, it is provided with two female heads 48 of pegging graft to correspond on the motor fixed plate 40, and two public heads 13 sizes of pegging graft exist the difference to play the fool-proof effect for the grafting cooperation of aircraft nose support 10 and motor fixed plate 40.

The motor fixing plate 40, the head bracket 10 and the assembling support piece 50 are provided with a plurality of reinforcing ribs, so that the structural strength is improved, the material consumption is reduced, and the cost is saved.

EXAMPLE III

The induced draft device that this embodiment provided still includes:

a mounting tube 60, the mounting tube 60 being fixedly connected to the mounting support 50.

The mounting tube 60 and the mounting support 50 are correspondingly provided with screw holes, and the mounting tube 60 and the mounting support 50 are fixed by screws.

After the assembly supporting member 50 is fixed, if the mounting tube 60 is in a fixed state in a use state, the assembly supporting member 50 also remains different, and at this time, when the motor 30 operates, the motor fixing plate 40 and the assembly supporting member 50 rotate relatively, so that the motor fixing plate 40 rotates relative to the ground, and the head bracket 10 is driven to rotate, thereby shaking the head of the fan.

Preferably, the air inducing device can be used for blowing air and can also be used for sucking air according to different arrangement directions of the fan.

The induced draft device that this embodiment provided fixes through assembling support piece 50 with installation pipe 60 to under the drive of motor 30, make motor fixing plate 40 with assembly support piece 50 takes place relative rotation, thereby drives head support 10 rotates, plays the effect of shaking the head, through motor 30 direct drive assembly support piece 50 to under reaction force, make motor fuselage and motor fixing plate 40, head support 10 synchronous rotation, the drive mode is direct, and the assembly is simple, and the structure is reliable.

Specifically, the induced draft device further includes: a line component 20;

a line component 20; the line component 20 is suitable for being arranged in a line-passing hole formed on the handpiece bracket 10 and/or the motor fixing plate 40 at least in a partial area.

Therefore, the circuit element 20 can conveniently penetrate through the handpiece support 10 and the motor fixing plate 40 and is connected with an external circuit element, so that the circuit element 20 is hidden inside the handpiece support 10 and the motor fixing plate 40, the appearance is attractive, the damage is not easy to damage, and the mistaken touch is prevented.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (9)

1. An air-inducing apparatus, comprising:

a line element (20);

the bottom of the support (15) penetrates through to form a hollow cavity;

at least one profiling lug (14) formed by extending outwards from the support (15);

a wiring groove (16) suitable for wiring the line element (20) is arranged on the outer surface of the profiling lug (14); a bracket wire-passing hole (12) is formed in the support (15) in a penetrating mode corresponding to the extending direction of the wiring groove (16), and the bracket wire-passing hole (12) is suitable for enabling the circuit element (20) in the wiring groove (16) to penetrate into the hollow cavity.

2. The wind-inducing apparatus of claim 1, further comprising:

a motor fixing plate (40) adapted to be fixedly connected with the support (15); and a routing through hole (42) is formed in the motor fixing plate (40), and the routing through hole (42) is suitable for enabling a line element (20) in the hollow cavity to further penetrate through the motor fixing plate (40) and to be communicated with an external conductive element.

3. The wind-inducing device of claim 2, wherein the routing via (42) extends through the motor-fixing plate (40) and forms a circular groove structure adapted to avoid the line element (20) when the motor-fixing plate (40) rotates.

4. The wind-guiding device according to claim 3, characterized in that the opening angle of the ring groove structure matches with the rotation angle of the motor fixing plate (40).

5. The wind-inducing device of claim 4, wherein the ring groove structure is configured as an arc-shaped ring groove around the axis of rotation of the motor fixing plate (40).

6. An air induction device according to any one of claims 1-5, characterised in that at least one wire-clipping rib is arranged in the raceway (16), said wire-clipping rib being adapted to be an interference fit with the line element (20).

7. The wind-inducing apparatus of claim 6, further comprising:

the motor (30) is fixed on the motor fixing plate (40) and is at least partially arranged in a hollow cavity formed by the support (15);

and the assembly supporting piece (50) is matched with a motor shaft of the motor (30) and enables the motor fixing plate (40) and the assembly supporting piece (50) to rotate relatively under the driving force of the motor (30).

8. The draught device according to claim 7, wherein a rotating shaft (45) is provided on the motor fixing plate (40), a rotating shaft assembling portion (55) is provided on the assembling support (50) corresponding to the rotating shaft (45), and the rotating shaft (45) and the rotating shaft assembling portion (55) are in relatively rotatable insertion fit.

9. The wind-guiding device according to claim 7, characterized in that at least one limit stop (47) is arranged on the motor fixing plate (40), a limit boss (53) is arranged on the assembly support member (50) corresponding to the limit stop (47), and the limit stop (47) is adapted to limit the rotation angle of the limit boss (53).

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