CN111365264A - Motor fan assembly, air box assembly and integrated stove - Google Patents

Abstract

The invention relates to the technical field of integrated cookers, and discloses a motor fan assembly, an air box assembly and an integrated cooker. The motor fan assembly includes: the fan unit comprises a volute and an impeller which can be rotatably arranged in the volute, and the volute comprises an air inlet end and an air outlet; the motor is arranged on the volute and is positioned at the radial outer part of the volute; the rotating shaft of the motor is connected with the rotating shaft of the impeller through a transmission mechanism. Because the motor sets up on the spiral case and is located the radial outside of spiral case, this motor fan assembly is assembling integrated kitchen back, can promote the function module in integrated kitchen the place ahead and set up the front and back degree of depth in space or increase and the function module that bellows assembly arranged on the direction of height of integrated kitchen sets up the height in space to noise when reducing integrated kitchen use promotes oil smoke suction efficiency.

Description

Motor fan assembly, air box assembly and integrated stove

Technical Field

The invention relates to the technical field of integrated cookers, in particular to a motor fan assembly, an air box assembly and an integrated cooker.

Background

A large amount of oil smoke is generated in daily cooking, and the oil smoke usually contains various harmful substances, so that the adverse effects on the human health and the indoor environment are caused. For this reason, range hoods are becoming more and more popular. The range hood is usually arranged above the kitchen range, and the generated oil smoke rises and is sucked away by the range hood. However, part of the oil smoke overflows to cause heavy smell of the kitchen oil smoke, and the oil smoke passes through the face in the rising process. For this reason, an integrated range in which oil smoke is discharged downward has appeared.

In the existing integrated kitchen range, the motor is fixed in the volute and positioned in the axial direction of the impeller, so that the motor drives the impeller to rotate in the volute and provides negative pressure for pumping oil smoke.

However, in such an integrated oven, the space of the disinfection cabinet in front of the integrated oven is small with reference to the use front-rear direction of the integrated oven (the side of the integrated oven facing the user is defined as the front). In addition, in use, the integrated stove has high noise when oil smoke is sucked. In addition, the oil smoke of integrated kitchen suction is admitted air and is not smooth and easy, and the amount of wind is less, increases noise and motor consumption.

Disclosure of Invention

The invention aims to reduce the noise of the integrated cooker in use and improve the oil fume suction efficiency.

To this end, the present invention provides a motor-fan assembly comprising: the fan unit comprises a volute and an impeller which can be rotatably arranged in the volute, and the volute comprises an air inlet end and an air outlet; the motor is arranged on the volute and is positioned at the radial outer part of the volute; the rotating shaft of the motor is connected with the rotating shaft of the impeller through a transmission mechanism.

Through the technical scheme, compared with the motor arranged in the volute, the motor is arranged on the volute and positioned at the radial outer part of the volute, so that the axial length of the fan unit can be reduced, the axial space of the air box occupied by the volute when the volute is arranged in the air box is reduced, the reduced axial space of the air box can form the functional module setting space in front of the integrated cooker, the front and back depth of the functional module setting space is greatly improved, or the reduced axial space of the air box can form the functional module setting space arranged in the height direction of the integrated cooker with the air box assembly, the height of the functional module setting space is greatly improved, in addition, after the motor is arranged at the radial outer part of the volute, the low-frequency noise can be prevented from being amplified through reverberation, the whole machine noise of the fan unit is optimized, and in addition, after the motor is arranged at the radial outer part of the volute, the influence that the motor end cover admitted air to the spiral case can be avoided, simultaneously, can further reduce the impeller diameter and make the effective working face of impeller increase, promote the effective working area of impeller to reduce the spiral case size, in order to reduce the occupation space of spiral case in bellows, this part occupation space that reduces can make the bellows admit air more smoothly, increases the amount of wind and noise reduction, promotes oil smoke suction efficiency.

Further, the transmission mechanism is configured to reduce the overall axial length of the motor-fan assembly in the axial direction of the volute; and/or the motor can adjust the fixed position on the volute along the circumferential direction of the volute.

Further, a motor fixing frame is integrally formed on the radial side wall of the volute, and the motor is arranged on the motor fixing frame.

Further, the motor fan assembly comprises any one of the following modes: the first method is as follows: the transmission mechanism comprises a driving belt wheel on a rotating shaft of the motor, a driven belt wheel on a rotating shaft of the impeller and a transmission belt connected between the driving belt wheel and the driven belt wheel; the second method comprises the following steps: the transmission mechanism is a gear box capable of outputting different gear rotating speeds.

In addition, the invention provides an air box assembly which comprises an air box and a motor fan assembly, wherein the air box comprises an air inlet connector and an air outlet connector; the motor fan assembly is arranged in the air box and comprises a motor and a fan unit, wherein the fan unit comprises a volute and an impeller which can be rotatably arranged in the volute, the volute comprises an air inlet end and an air outlet, the air inlet end is communicated with the air inlet connecting port, and the air outlet is connected with the air outlet connecting port; the motor is positioned outside the volute, and a rotating shaft of the motor is connected with a rotating shaft of the impeller through a transmission mechanism.

In this technical scheme, for the motor setting is in the spiral case, because the motor is located the outside of spiral case, can avoid low frequency band noise to pass through the spiral case reverberation like this and enlarge, thereby optimize the whole quick-witted noise of fan unit, in addition, the motor setting is behind the outside of spiral case, can avoid the influence that the motor end cover admits air to the spiral case, and simultaneously, can further reduce the impeller diameter and make the whole surface of impeller as effective acting surface, promote the effective acting area of impeller, and reduce the spiral case size, in order to reduce the occupation space of spiral case in the bellows, this part occupation space that reduces can make the bellows admit air more smoothly, increase the amount of wind and noise reduction, promote oil smoke suction efficiency.

Further, the motor is located radially outward of the volute.

Further, the air inlet connecting port is formed on the top side wall of the air box, and the air outlet connecting port is formed on the bottom side wall of the air box.

Further, the motor is connected to a front end wall of the air box, and the scroll casing is disposed adjacent to the front end wall.

Further, the bellows assembly includes the motor fan assembly described above, wherein the motor fan assembly is the motor fan assembly.

Further, the number of the fan units is multiple, wherein the motor can drive the impellers to rotate through the transmission mechanism.

In addition, the invention provides an integrated cooker which comprises a frame and the air box assembly, wherein the frame is provided with a machine head with a suction inlet, and the frame is internally provided with an air duct with an air outlet; wherein, a flue gas channel is formed between the suction inlet and the air inlet connecting port, and the air outlet is communicated with the air outlet connecting port.

Like this, as above, the noise when integrated kitchen uses effectively reduces, has promoted oil smoke suction efficiency.

Further, in the back and forth direction of the integrated kitchen range, be provided with in the frame and be located the function module in bellows assembly the place ahead sets up the space, the bellows assembly sets up to the front and back degree of depth that can increase function module setting space.

Further, be provided with in the frame with the function module that bellows assembly arranged in the direction of height of integrated kitchen sets up the space, bellows assembly sets up to the height that can increase function module and set up the space.

Further, the function module setting space includes at least one of a sterilizing cabinet module setting space, an oven module setting space and a dishwasher module setting space.

In addition, an air duct with an air outlet is arranged in the rack, and the air outlet is communicated with the interior of the air duct through the air outlet connector.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a motor-fan assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a bellows assembly in accordance with an embodiment of the present invention, wherein the bellows assembly is coupled to an air duct;

fig. 3 is a rear perspective view of an integrated cooker according to an embodiment of the present invention;

fig. 4 is a rear view of the integrated cooker of fig. 3;

fig. 5 is a side view of the integrated cooker of fig. 3;

fig. 6 is a front perspective view of the integrated cooker of fig. 3.

Description of the reference numerals

1-volute, 2-impeller, 3-air inlet end, 4-air outlet, 5-motor, 6-volute mounting rack, 7-driving pulley, 8-driven pulley, 9-driving belt, 10-air box, 11-front end wall, 12-air inlet connecting port, 13-bottom side wall, 14-frame, 15-gas stove assembly, 16-suction inlet, 17-nose, 18-air outlet, 19-air cylinder, 20-flue gas channel, 21-disinfection cabinet module, 22-steaming and baking oven module, 23-air box top cover and 24-rear cover.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Referring to the structure shown in fig. 1, the motor-fan assembly provided by the present invention includes a fan unit and a motor 5, wherein the fan unit includes a volute 1 and an impeller 2 rotatably disposed in the volute 1, the volute 1 includes an air inlet end 3, such as an axial air inlet end, and an air outlet 4, such as a circumferential air outlet, the motor 5 is disposed on the volute 1 and located radially outside the volute 1, wherein a rotating shaft of the motor 5 and a rotating shaft of the impeller 2 are connected by a transmission mechanism, so that when the motor 5 is started to drive the impeller 2 to rotate by the transmission mechanism, an air flow, such as oil smoke, is sucked into the volute from the air inlet end 3 and then discharged from the air outlet 4.

In the technical solution, compared with the motor arranged in the volute, because the motor 5 is arranged on the volute 1 and located at the radial outer part of the volute 1, the axial length of the fan unit can be reduced, the axial space of the bellows 10 occupied by the volute 1 when the volute 1 is arranged in the bellows 10 can be reduced, and the reduced axial space of the bellows can form the functional module setting space in front of the integrated cooker, so as to greatly improve the front-back depth of the functional module setting space, or the reduced axial space of the bellows can form the functional module setting space arranged in the height direction of the integrated cooker with the bellows assembly, so as to greatly improve the height of the functional module setting space, in addition, after the motor 5 is arranged at the radial outer part of the volute 1, the low-frequency noise can be prevented from being amplified by reverberation of the volute 1, so as to optimize the whole noise of the fan unit, and in addition, the motor 5 sets up behind the radial outside of spiral case 1, can avoid the influence that the motor end cover intake spiral case 1, simultaneously, can further reduce 2 diameters of impeller and make the effective working face of impeller 2 increase, promote the effective working area of impeller, and reduce the spiral case size, in order to reduce the space that occupies of spiral case in bellows, this part of reduction occupies the space and can make the bellows admit air more smoothly, increase amount of wind and noise reduction, promotion oil smoke suction efficiency.

In addition, in the motor fan assembly, the transmission mechanism may be located at an axial end portion of the motor and the volute, and therefore, the transmission mechanism is configured to reduce an overall axial length of the motor fan assembly in an axial direction of the volute. In this way, the axial space that occupies the air box 10 when the scroll case 1 is disposed inside the air box 10 can be further reduced, and this part of the axial space in which the air box is reduced can then form the function module setting space in front of the integrated cooker, thereby further largely elevating the front-rear depth of the function module setting space (for example, in a vertical integrated cooker), or this part of the axial space in which the air box is reduced can form the function module setting space that is arranged in the height direction of the integrated cooker with the air box assembly, thereby further largely elevating the height of the function module setting space (for example, in a horizontal integrated cooker).

In addition, the motor 5 can be adjusted to be fixed in position on the volute 1 along the circumferential direction of the volute, and therefore when the motor fan assembly is assembled into an air box, the specific installation positions of the motor and the volute can be correspondingly adjusted according to the space requirement in the air box, and the flexible and changeable installation space requirement can be met. For example, the scroll casing 1 is formed with a plurality of mounting points such as mounting plates or mounting holes arranged at intervals in the circumferential direction. Or, be provided with on the spiral case and can slide along circumferential direction and the motor installing support of fixed position after sliding required position (for example be formed with the spout that circumference extends on the spiral case, be formed with the spacing hole on the groove lateral wall of spout, after the motor installing support slides required position, the spacer pin passes spacing hole and inserts in the locating hole that the motor installing support corresponds to with motor installing support fixed position), the motor then can fixed mounting on motor installing support, like this, adjust the motor installing support, can adjust the arbitrary circumferential position of spiral case with the motor.

In the motor fan assembly, the motor 5 may be disposed on the volute casing 1 and located radially outside the volute casing 1, for example, in a structure that a mounting bracket is detachably disposed on an axial side wall of the volute casing 1, the mounting bracket may extend to a radial side portion of the volute casing 1, and the motor 5 may be mounted on the mounting bracket to be located radially outside the volute casing 1. Or, in another structure, a motor fixing frame is integrally formed on the radial side wall of the volute 1, and the motor 5 is arranged on the motor fixing frame, so that the axial length of the volute can be further reduced, the axial space occupied by the volute in the air box is reduced after the motor fan assembly is arranged in the air box, and the reduced axial space can further form a function module arrangement space in front of the integrated stove, so that the front and back depth of the function module arrangement space is further greatly improved. Alternatively, the motor mount may be a separate component and removably disposed on the radial sidewall of the housing 1. Of course, the motor mount can have multiple structural style, it as long as can satisfy the motor and install on the spiral case can, this application does not do specific restriction to the concrete of motor mount.

In addition, as shown in fig. 1, a volute mounting bracket 6 may be provided on a radial sidewall of the housing 1, so that the volute 1 may be mounted in the wind box 10 by the connection of the volute mounting bracket 6 and the wind box.

In addition, in this motor fan assembly, the motor fan assembly includes any one of the following modes: the first method is as follows: as shown in fig. 1, the transmission mechanism includes a driving pulley 7 on the rotating shaft of the motor 5, a driven pulley 8 on the rotating shaft of the impeller 2 and a transmission belt 9 connected between the driving pulley 7 and the driven pulley 8, in this way, after the motor 5 is started, the driving pulley 7 rotates and drives the driven pulley 8 to rotate through the transmission belt 9, so as to drive the impeller 2 to rotate, on the premise of satisfying power transmission, the width of the rotating belt 9 can be reduced, so that the axial widths of the driving pulley 7 and the driven pulley 8 are reduced, and thus, the axial length of the motor fan assembly can be further reduced. Of course, the belt 9 can be a triangular belt or a flat belt or a belt with any cross-section; the second method comprises the following steps: the transmission mechanism is a gear box (not shown) capable of outputting different gear rotating speeds, so that switching between high rotating speeds and different gear rotating speeds of the fan can be realized by controlling the rotating speed ratio of the gear box, and rotating speed adjustment of the fan is realized to be better adjusted according to oil smoke amount. Furthermore, it should be understood that the transmission mechanism may have other structures, such as a chain transmission, a gear transmission, a connecting rod transmission, a worm gear transmission, etc.

In addition, the position where the motor is placed can be any position around the volute casing as long as the motor is located at the radial outer part of the volute casing.

In addition, the present invention provides an air box assembly, referring to fig. 2, the air box assembly includes an air box 10 and a motor fan assembly, wherein the air box 10 includes an air inlet connection port and an air outlet connection port; the motor fan assembly is arranged in the air box 10 and comprises a motor 5 and a fan unit, namely, the motor 5 and the fan unit are positioned in the air box 10, wherein the fan unit comprises a volute 1 and an impeller 2 which can be rotatably arranged in the volute 1, the volute 1 comprises an air inlet end 3, such as an axial air inlet end, and an air outlet 4, such as a circumferential air outlet, and the air inlet end 3 is communicated with an air inlet connector 12, and the air outlet 4 is connected with an air outlet connector, so that when the motor 5 drives the impeller 2 to rotate, airflow, such as oil smoke, enters the volute from the air inlet connector 12 through the air inlet end 3 and is then discharged from the air outlet 4 through the air outlet connector; the motor 5 is positioned outside the volute 1, and a rotating shaft of the motor 5 is connected with a rotating shaft of the impeller 2 through a transmission mechanism.

In this technical scheme, for the motor setting is in the spiral case, because motor 5 is located the outside of spiral case 1, can avoid low frequency band noise to pass through the spiral case reverberation like this and enlarge, thereby optimize the whole machine noise of fan unit, in addition, motor 5 sets up behind the radial outside of spiral case 1, can avoid the influence that the motor end cover admits air to the spiral case, and simultaneously, can further reduce the impeller diameter and make the whole surface of impeller as effective acting surface, promote the effective acting area of impeller, and reduce the spiral case size, in order to reduce the occupation space of spiral case in the bellows, this part occupation space that reduces can make the bellows admit air more smoothly, increase the amount of wind and noise reduction, promote oil smoke suction efficiency.

In addition, the motor 5 is located radially outside of the volute case 1, and thus, the axial length of the fan unit can be reduced, the axial space of the bellows 10 is occupied when the volute case 1 is disposed in the bellows 10, and the reduced axial space of the bellows can form the function module disposing space in front of the integrated cooker, thereby greatly improving the front-back depth of the function module disposing space, or the reduced axial space of the bellows can form the function module disposing space arranged in the height direction of the integrated cooker with the bellows assembly, thereby greatly improving the height of the function module disposing space.

In addition, in the bellows assembly, the transmission mechanism may be located at an axial end portion of the motor and the volute, and therefore, the transmission mechanism is configured to reduce an overall axial length of the motor-fan assembly in an axial direction of the volute. In this way, the axial space that occupies the air box 10 when the scroll case 1 is disposed inside the air box 10 can be further reduced, and this part of the axial space in which the air box is reduced can then form the function module setting space in front of the integrated cooker, thereby further largely elevating the front-rear depth of the function module setting space (for example, in a vertical integrated cooker), or this part of the axial space in which the air box is reduced can form the function module setting space that is arranged in the height direction of the integrated cooker with the air box assembly, thereby further largely elevating the height of the function module setting space (for example, in a horizontal integrated cooker).

In addition, drive mechanism includes the epaxial driving pulley 7 of the pivot of motor 5, the epaxial driven pulley 8 of pivot of impeller 2 and the drive belt 9 of connection between driving pulley 7 and driven pulley 8, thus, after motor 5 started, driving pulley 7 rotated and driven pulley 8 rotates through drive belt 9, in order to drive impeller 2 and rotate, under the prerequisite that satisfies power transmission, the width of rotating belt 9 can reduce, thereby make driving pulley 7 and driven pulley 8's axial width reduce, like this, can further reduce the axial length of this motor fan assembly. Of course, the belt 9 can be a triangular belt or a flat belt or a belt with any cross-section; the transmission mechanism can also be a gear box (not shown) capable of outputting different gear rotating speeds, so that the high rotating speed and different gear rotating speeds of the fan can be switched by controlling the rotating speed ratio of the gear box, the rotating speed of the fan can be adjusted, and the fan can be better adjusted according to the oil smoke amount. Furthermore, it should be understood that the transmission mechanism may have other structures, such as a chain transmission, a gear transmission, a connecting rod transmission, a worm gear transmission, etc.

In addition, the volute 1 may have an arrangement within the wind box 10, for example, in one manner, the axis of the volute 1 may be vertically arranged with reference to the front-rear direction of use of the integrated range after the wind box is assembled into the integrated range. Alternatively, as shown in fig. 2, in order to reduce the occupied space of the wind box 10 in the front-rear direction of the integrated cooker, the axis of the volute 1 is arranged along the front-rear direction of the integrated cooker, so that the axial length of the wind box 10 in the front-rear direction of the integrated cooker can be effectively avoided due to the small axial thickness of the volute, and in addition, the arrangement of the volute can also reduce the occupied space of the volute in the wind box 10.

Further, the air inlet connection port 12 may be formed on any wall of the air box 10, for example, the air inlet connection port 12 may be formed on the rear end wall of the air box 10 (if the air box 10 includes the rear end wall), or, as shown in FIG. 2, the air inlet connection port may be formed on the top side wall of the air box 10, for example, in the structure shown in FIG. 2, when the air box top cover 23 is assembled, the axial length of the air box top cover 23 is smaller than the axial lengths of the left and right side walls along the axial direction of the volute, so that a notch, which is the air inlet connection port, may be formed on the upper portion of the air box, and after the air box assembly is assembled to the integrated range, as shown by an arrow in FIG. 5, the soot will enter the air box 10 from the air inlet connection port 12 and then enter the volute, the air outlet connection port is formed on the bottom side wall 13 of the air box 10, and, for example, into the air duct 19 and out.

Alternatively, the motor 5 may be mounted on any wall of the bellows 10, for example, the motor 5 may be attached to a side wall of the bellows 10, alternatively, to facilitate opening of the bellows 10 for servicing of the motor, the motor 5 is preferably attached to the front end wall 11 of the bellows 10, as shown in fig. 2, so that, in fig. 3, the motor 5 can be cleaned and maintained by simply opening the rear cover 24, and, as shown in fig. 2 and 5, the scroll casing 1 is disposed adjacent to the front end wall 11 of the wind box 10, for example, the volute 1 may be in direct contact on the front end wall 11 or the volute 1 may be kept at a small distance from the front end wall 11, as shown in figure 5, a larger air inlet space can be formed in the axial direction of the air box 10, so that the flue gas entering the air box can more easily enter the volute from the rear end of the volute, while a small amount of flue gas can enter the volute from the smaller space between the volute and the front end wall 11.

In addition, in the bellows assembly, the motor 5 may be separately connected to the bellows 10 and connected to the impeller 2 through a transmission mechanism in one embodiment. Alternatively, in another embodiment, the wind box assembly comprises the motor fan assembly as described in any of the above, wherein the motor fan assembly is a motor fan assembly, that is, the motor 5 is disposed on the volute casing 1, and of course, in this embodiment, the motor 5 disposed on the volute casing 1 may also be fixedly connected to the wall of the wind box 10 for improving the stability of the motor.

In addition, in this bellows assembly, the quantity of fan unit can be one, or, the quantity of fan unit also can be a plurality of for example two, and at this moment, motor 5 can drive a plurality of impellers 2 through drive mechanism and rotate, for example, can drive a plurality of impellers 2 syntropy and rotate or the antiport to promote the discharge efficiency of the flue gas that enters into in the bellows.

In addition, the wind box 10 may not include a rear end wall, and the rear end of the wind box 10 may be closed by the rear cap 24 of the integrated range after the wind box 10 is assembled to the integrated range, in which case the rear cap 24 serves as the rear cap of the integrated range and also as the rear end wall of the wind box 10.

In addition, the invention also provides an integrated stove, referring to fig. 3, fig. 4, fig. 5 and fig. 6, the integrated stove comprises a frame 14 and the air box assembly, wherein the frame 14 is provided with a nose 17 having a suction inlet 16, a smoke channel 20 is formed between the suction inlet 16 and the air inlet connecting port, and the air outlet 4 is communicated with the air outlet connecting port.

Like this, as above, the noise when integrated kitchen uses effectively reduces, has promoted oil smoke suction efficiency for the whole quality of integrated kitchen obtains effectively promoting.

In addition, a heating assembly, such as a gas cooker assembly 15 or an induction cooker assembly, may be disposed on the frame 14. Thus, under the suction action of the negative pressure generated by the impeller, the generated oil smoke can enter the smoke channel 20 through the suction inlet 16, enter the air box 10 through the air inlet connecting port 12, then be sucked into the volute, enter the air duct 19 through the air outlet 4 and the air outlet connecting port, and be discharged from the air outlet 18, as shown by arrows in fig. 4 and 5.

In addition, in the front-rear direction of the integrated cooker, a functional module installation space located in front of the bellows assembly is provided in the frame 14. As shown in fig. 3, 4, 5 and 6 to form a vertical integrated cooker (the spiral case is vertically disposed as shown in fig. 5), the windbox assembly can effectively increase the front-to-rear depth of the function module installation space in front of the integrated cooker, for example, in fig. 5, the front-to-rear depth of the function module installation space can be increased by W1. For example, the front-rear length of the bellows may be reduced, or the front-rear depth of the functional module installation space may be further increased when the motor is disposed radially outside the volute.

Further, in the integrated cooker, the functional module setting space arranged in the height direction of the integrated cooker with the bellows assembly is provided in the housing 14 to form a horizontal type integrated cooker (a horizontal type of the volute, that is, an axis of the volute is perpendicular to the ground), so that the bellows assembly can effectively increase the height of the functional module setting space arranged in the height direction of the integrated cooker. For example, the height of the bellows can be reduced, or the height of the functional module installation space can be further increased when the motor is arranged radially outside the volute.

In addition, the function module setting space includes at least one of a disinfection cabinet module setting space (the disinfection cabinet module can be set in the disinfection cabinet module setting space), an oven module setting space (the oven module 22 can be set in the oven module setting space) and a dishwasher module setting space, so that the function module setting space can be flexibly arranged according to the market demand of the integrated cooker. Of course, it should be understood that the function module arrangement space may also include other function module arrangement spaces.

In addition, as shown in fig. 3-5, an air duct 19 having an air outlet 18 is disposed in the frame 14, and the air outlet 4 is communicated with the inside of the air duct 19 through an air outlet connection port. Thus, under the suction action of the negative pressure generated by the impeller, the generated oil smoke can enter the smoke channel 20 through the suction inlet 16, enter the air box 10 through the air inlet connecting port 12, then be sucked into the volute, enter the air duct 19 through the air outlet 4 and the air outlet connecting port, and be discharged from the air outlet 18, as shown by arrows in fig. 4 and 5.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (15)

1. A motor-fan assembly, comprising:

the fan unit comprises a volute (1) and an impeller (2) which can be rotatably arranged in the volute (1), and the volute (1) comprises an air inlet end (3) and an air outlet (4);

a motor (5), the motor (5) being disposed on the volute (1) and located radially outward of the volute (1);

the rotating shaft of the motor (5) is connected with the rotating shaft of the impeller (2) through a transmission mechanism.

2. The electric motor-fan assembly of claim 1, wherein the transmission mechanism is configured to reduce an overall axial length of the electric motor-fan assembly in an axial direction of the volute; and/or the motor (5) can adjust the fixed position on the volute (1) along the circumferential direction of the volute.

3. The motor-fan assembly according to claim 1, wherein a motor mount is integrally formed on a radial sidewall of the volute (1), and the motor (5) is disposed on the motor mount.

4. The electric motor-fan assembly of any of claims 1-3, wherein the electric motor-fan assembly comprises any of:

the first method is as follows: the transmission mechanism comprises a driving belt wheel (7) on a rotating shaft of the motor (5), a driven belt wheel (8) on a rotating shaft of the impeller (2) and a transmission belt (9) connected between the driving belt wheel (7) and the driven belt wheel (8);

the second method comprises the following steps: the transmission mechanism is a gear box capable of outputting different gear rotating speeds.

5. A bellows assembly, comprising:

the air box (10), the air box (10) includes an air inlet connector and an air outlet connector;

the motor fan assembly is arranged in the air box (10) and comprises a motor (5) and a fan unit, wherein the fan unit comprises a volute (1) and an impeller (2) which can be rotatably arranged in the volute (1), the volute (1) comprises an air inlet end (3) and an air outlet (4), the air inlet end (3) is communicated with the air inlet connecting port (12), and the air outlet (4) is connected with the air outlet connecting port; the motor (5) is positioned outside the volute (1), and a rotating shaft of the motor (5) is connected with a rotating shaft of the impeller (2) through a transmission mechanism.

6. Bellows assembly according to claim 5, wherein the electric motor (5) is located radially outside the volute (1).

7. A bellows assembly according to claim 5, wherein the air inlet connection opening is formed on the top side wall of the bellows (10) and the air outlet connection opening is formed on the bottom side wall (13) of the bellows (10).

8. A bellows assembly according to claim 5, wherein the motor (5) is connected to a front end wall (11) of the bellows (10), the volute (1) being arranged adjacent to the front end wall (11).

9. The bellows assembly of any one of claims 5-8 comprising the electric motor-fan assembly of any one of claims 1-4, wherein the electric motor-fan component is the electric motor-fan assembly.

10. Bellows assembly according to claim 5, wherein the number of fan units is a plurality, wherein the motor (5) is capable of rotating the plurality of impellers (2) via the transmission.

11. An integrated cooker, characterized by comprising a frame (14) and the air box assembly of any one of claims 5 to 10, wherein the frame (14) is provided with a nose (17) having a suction inlet (16), wherein a flue gas channel (20) is formed between the suction inlet (16) and the air inlet connection port, and the air outlet (4) is communicated with the air outlet connection port.

12. The integrated cooker according to claim 11, wherein a functional module installation space is provided in the frame (14) in front of the bellows assembly in a front-rear direction of use of the integrated cooker, and the bellows assembly is installed to increase a front-rear depth of the functional module installation space.

13. The integrated cooker according to claim 11, wherein a function module setting space is provided in the housing (14) to be arranged in a height direction of the integrated cooker with the bellows assembly, and the bellows assembly is provided to be able to increase a height of the function module setting space.

14. The integrated cooker according to claim 12 or 13, wherein the function module setup space includes at least one of a sterilizer module setup space, an oven module setup space, and a dishwasher module setup space.

15. The integrated stove according to claim 11, wherein an air duct (19) having an air outlet (18) is arranged in the frame (14), and the air outlet (4) is communicated with the interior of the air duct (19) through the air outlet connection port.

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