CN219390081U

CN219390081U - Combined fan

Info

Publication number: CN219390081U
Application number: CN202223543993.6U
Authority: CN
Inventors: 穆映宏
Original assignee: Foshan Tongdao Electric Appliance Co ltd
Current assignee: Foshan Tongdao Electric Appliance Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-21
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a combined fan, and belongs to the technical field of fan heaters. The PTC heating device comprises a first fan, a second fan and an air channel which is fixedly arranged between the first fan and the second fan and is used for communicating the first fan and the second fan, openings are formed in the tops of the first fan and the second fan, a first wind wheel capable of rotating is arranged in the first fan, a second wind wheel capable of rotating is arranged in the second fan, and a PTC heating module is fixedly arranged in the air channel. The outer side wall of the first fan is fixedly provided with a first motor for driving the first wind wheel to rotate, and the outer side wall of the second fan is fixedly provided with a second motor for driving the second wind wheel to rotate. According to the utility model, through the cooperation of the first fan, the second fan, the air duct, the two wind wheels and the PTC heating module, the air quantity is greatly increased, and meanwhile, through the control of the PTC heating module, hot air and cool air can be blown, so that the whole volume is small and the PTC heating module is more attractive.

Description

Combined fan

Technical Field

The utility model relates to the field of warm air machines, in particular to a combined fan.

Background

The bathroom warmer heater can play a role in exhausting and ventilating, is mainly installed in a bathroom, is a forced convection type heating device, is a combined unit formed by combining a ventilator, a motor and an air heater, and adopts wind sources such as an axial flow fan, a cooling fan, a roller type fan, a centrifugal fan and the like. Among them, PTC is most commonly used as a heat generating source.

The consumption power of the PTC heater of the warm air blower is closely related to the wind speed of the outlet wind, the wind speed is increased, the power is increased, and the wind temperature is reduced. In addition, the air duct design well matched with the air duct is needed. At present, the fan heater in the market has large volume, attractive installation and small air quantity.

How to invent a combined fan to improve the problems becomes a problem to be solved by the person skilled in the art.

Disclosure of Invention

In order to make up for the defects, the utility model provides a combined fan, which aims to solve the problems of large size, unattractive installation and small air quantity of a fan heater.

The utility model is realized in the following way:

the utility model provides a combined fan which comprises a first fan, a second fan and an air duct fixedly arranged between the first fan and the second fan and used for communicating the first fan and the second fan, wherein openings are formed in the tops of the first fan and the second fan, a first rotatable wind wheel is arranged in the first fan, a second rotatable wind wheel is arranged in the second fan, and a PTC heating module is fixedly arranged in the air duct.

Preferably, a first motor for driving the first wind wheel to rotate is fixedly arranged on the outer side wall of the first fan, and a second motor for driving the second wind wheel to rotate is fixedly arranged on the outer side wall of the second fan.

Preferably, the outer side walls of the first fan and the second fan are fixedly connected with brackets.

Preferably, the first fan and the second fan comprise two opposite side plates which are parallel to each other, the two side plates are connected through an arc cover, and the first motor and the second motor are respectively and fixedly installed on the side plates of the first fan and the second fan through a bracket.

Preferably, the communication ports are formed in one side, opposite to the arc-shaped cover of the second fan, of the arc-shaped cover of the first fan, and the openings are formed in the tops of the arc-shaped covers of the first fan and the second fan.

Preferably, the air duct is arranged between the two communication ports, and the inside of the air duct is respectively communicated with the inside of the first fan and the inside of the second fan through the two communication ports.

Preferably, the air duct is arranged between the two communication ports, and the air duct is fixedly connected with the first fan and the second fan through bolts.

Preferably, the side plate of the second fan is rotationally connected with a rotating rod perpendicular to the side plate, the top of the rotating rod is fixedly connected with a swinging blade, and the side plate of the second fan is fixedly provided with a stepping motor for driving the rotating rod to rotate.

Preferably, the central axis of the first wind wheel is perpendicular to the side plate of the first fan, and the central axis of the second wind wheel is perpendicular to the side plate of the second fan.

Preferably, the first wind wheel and the second wind wheel each comprise a rotating shaft, the two rotating shafts are respectively connected to the side plates of the first fan and the second fan in a rotating mode, the two rotating shafts are respectively perpendicular to the side plates of the first fan and the second fan, a plurality of partition plates are fixedly arranged on the side walls of the rotating shafts, and a plurality of blades which are circumferentially distributed by taking the rotating shafts as shafts are fixedly connected between the two adjacent partition plates.

The beneficial effects of the utility model are as follows: through the cooperation between first fan, the second fan, the wind channel, first wind wheel, PTC heating module and the second wind wheel is used, first motor can drive first wind wheel fast rotation for outside air is through the opening on the first fan fast through the wind channel and by the PTC heating module heating work in the wind channel, the second motor can drive the second wind wheel fast rotation afterwards, the cooperation second fan lets the hot air in the wind channel flow out more fast, the amount of wind greatly increased, simultaneously through the control to PTC heating module, can blow hot-blast, cool wind, whole small, also more pleasing to the eye.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall appearance of a combined fan according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a first driving motor and a second driving motor of a combined fan according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a combined fan according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a combination blower according to an embodiment of the present utility model;

fig. 5 is a first wind wheel structure diagram of a combined fan according to an embodiment of the present utility model.

In the figure: 1. a first fan; 2. a second fan; 3. an air duct; 4. a first wind wheel; 5. a second wind wheel; 6. a PTC heating module; 7. a first motor; 8. a second motor; 9. swinging leaves; 10. a stepping motor; 11. a rotating rod; 12. a bracket; 13. a rotating shaft; 14. a partition plate; 15. and (3) a blade.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-3, a combined fan comprises a first fan 1, a second fan 2 and an air duct 3 fixedly arranged between the first fan 1 and the second fan 2 and used for communicating the first fan 1 and the second fan 2, openings are formed in the tops of the first fan 1 and the second fan 2, a first wind wheel 4 capable of rotating is arranged in the first fan 1, a second wind wheel 5 capable of rotating is arranged in the second fan 2, and a PTC heating module 6 is fixedly installed in the air duct 3. The outer side wall of the first fan 1 is fixedly provided with a first motor 7 for driving the first wind wheel 4 to rotate, and the outer side wall of the second fan 2 is fixedly provided with a second motor 8 for driving the second wind wheel 5 to rotate. The outer side walls of the first fan 1 and the second fan 2 are fixedly connected with brackets 12 for fixing the first motor 7 and the second motor 8. The PTC is a ceramic electric heating element for short, and takes the PTC ceramic heating element as a heat source, and has the advantages of quick temperature rise, high heat efficiency, no luminescence, no open fire, long service life and the like. The PTC element has a waterproof function, so that the PTC element is suitable for being used in a bathroom and is very safe and reliable.

Referring to fig. 3-5, the first fan 1 and the second fan 2 each comprise two opposite side plates which are parallel to each other, the two side plates are connected through an arc cover, the central axis of the first wind wheel 4 is perpendicular to the side plate of the first fan 1, and the central axis of the second wind wheel 5 is perpendicular to the side plate of the second fan 2. The first wind wheel 4 and the second wind wheel 5 respectively comprise rotating shafts 13, the two rotating shafts 13 are respectively connected to side plates of the first fan 1 and the second fan 2 in a rotating mode, the two rotating shafts 13 are respectively perpendicular to the side plates of the first fan 1 and the second fan 2, a plurality of partition plates 14 are fixedly arranged on the side walls of the rotating shafts 13, and a plurality of blades 15 which are circumferentially distributed by taking the rotating shafts 13 as shafts are fixedly connected between the two adjacent partition plates 14. An output shaft of the first motor 7 is fixedly connected with a rotating shaft of the first wind wheel 4, and an output shaft of the second motor 8 is fixedly connected with a rotating shaft of the second wind wheel 5.

Referring to fig. 2 to 4, the first motor 7 and the second motor 8 are fixedly installed on the side plates of the first fan 1 and the second fan 2, respectively, through brackets 12. The arc cover of first fan 1 has all been seted up the intercommunication mouth with the arc cover of second fan 2 relative one side, and the opening is seted up at the top of the arc cover of first fan 1 and second fan 2. The air duct 3 is arranged between the two communication ports, and the inside of the air duct 3 is respectively communicated with the inside of the first fan 1 and the inside of the second fan 2 through the two communication ports. The air duct 3 is fixedly connected with the first fan 1 and the second fan 2 through bolts.

Referring to fig. 1, the air duct 3 is disposed between two communicating ports, a rotating rod 11 perpendicular to the side plate is rotatably connected to the side plate of the second fan 2, a swing blade 9 is fixedly connected to the top of the rotating rod 11, and a stepping motor 10 for driving the rotating rod 11 to rotate is fixedly mounted on the side plate of the second fan 2.

The working principle of the combined fan is as follows: the first motor 7 drives the first wind wheel 4 to rotate rapidly, and the first fan 1 is matched to enable air to pass through the air duct 3 rapidly;

the PTC heating module 6 in the air duct 3 works to raise the temperature of air passing through the air duct 3;

the second motor 8 drives the second wind wheel 5 to rotate rapidly, and hot air in the air duct 3 flows out more rapidly by matching with the second fan 2;

the stepping motor 10 drives the rotating rod 11 to rotate positively and negatively, so that the swing blade 9 swings in a bad way, and the hot air direction flowing out of the second fan 2 is controlled.

The primary function of the first fan 1 is to blow out the heat of the PTC heating module 6, and to blow the heat energy to the second fan 2, and then the second fan 2 blows out the heat. The combined beneficial effects are as follows: first, the heating efficiency can be maximized. Second, the wind resistance of the second fan 2 is minimum, and the maximum wind quantity can be achieved. The combination of traditional single fan and heating module, most sets up in the fan air outlet, and the windage of fan is great like this, and the air output is great, can not be used as the hair-dryer with the fan, or adorn the heating module at single fan air intake, but lean on the suction of fan to be insufficient to blow out heat energy like this. Therefore, the combined fan solves the problem that the single fan cannot solve at present.

It should be noted that, specific model specifications of the motor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

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

Claims

1. The utility model provides a combination formula fan, its characterized in that, including first fan (1), second fan (2) and fixed setting between first fan (1) and second fan (2) and be used for wind channel (3) of intercommunication first fan (1) and second fan (2), the opening has all been seted up at the top of first fan (1) and second fan (2), be provided with first wind wheel (4) that can rotate in first fan (1), be provided with second wind wheel (5) that can rotate in second fan (2), fixed mounting has PTC module (6) that generate heat in wind channel (3).

2. The combined fan according to claim 1, wherein a first motor (7) for driving the first wind wheel (4) to rotate is fixedly arranged on the outer side wall of the first fan (1), and a second motor (8) for driving the second wind wheel (5) to rotate is fixedly arranged on the outer side wall of the second fan (2).

3. A combined fan according to claim 2, characterized in that the outer side walls of the first fan (1) and the second fan (2) are fixedly connected with brackets (12).

4. A combined fan according to claim 3, wherein the first fan (1) and the second fan (2) each comprise two opposite side plates which are parallel to each other, the two side plates are connected through an arc-shaped cover, and the first motor (7) and the second motor (8) are fixedly mounted on the side plates of the first fan (1) and the second fan (2) respectively through brackets (12).

5. The combined fan according to claim 4, wherein the arc-shaped cover of the first fan (1) and the arc-shaped cover of the second fan (2) are provided with communication ports on opposite sides, and the ports are formed in the tops of the arc-shaped covers of the first fan (1) and the second fan (2).

6. The combined fan according to claim 5, wherein the air duct (3) is arranged between two communication ports, and the interior of the air duct (3) is respectively communicated with the interiors of the first fan (1) and the second fan (2) through the two communication ports.

7. The combined fan according to claim 1, wherein the air duct (3) is fixedly connected with the first fan (1) and the second fan (2) through bolts.

8. The combined fan according to claim 5, wherein a rotating rod (11) perpendicular to the side plate is rotatably connected to the side plate of the second fan (2), a swinging blade (9) is fixedly connected to the top of the rotating rod (11), and a stepping motor (10) for driving the rotating rod (11) to rotate is fixedly mounted on the side plate of the second fan (2).

9. A combined fan according to claim 5, characterized in that the centre axis of the first wind wheel (4) is perpendicular to the side plates of the first fan (1), and the centre axis of the second wind wheel (5) is perpendicular to the side plates of the second fan (2).

10. The combined fan according to claim 9, wherein the first wind wheel (4) and the second wind wheel (5) each comprise a rotating shaft (13), two rotating shafts (13) are respectively connected to side plates of the first fan (1) and the second fan (2) in a rotating mode, two rotating shafts (13) are respectively perpendicular to the side plates of the first fan (1) and the second fan (2), a plurality of partition plates (14) are fixedly arranged on the side walls of the rotating shafts (13), and a plurality of blades (15) which are circumferentially distributed by taking the rotating shafts (13) as shafts are fixedly connected between every two adjacent partition plates (14).