CN108397411B

CN108397411B - Air supply device

Info

Publication number: CN108397411B
Application number: CN201710068391.4A
Authority: CN
Inventors: 周书贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-07
Filing date: 2017-02-07
Publication date: 2020-01-14
Anticipated expiration: 2037-02-07
Also published as: CN108397411A

Abstract

The invention discloses an air supply device which comprises an outer shell and an inner cover body arranged in the outer shell. The outer shell is provided with at least one first suction inlet and at least one second suction inlet, a first high-pressure generating part is formed between the outer shell and the inner cover body, the first high-pressure generating part is provided with a first fan capable of enabling air to be a first high-speed airflow, and a first blowing outlet for blowing out the first high-speed airflow is formed between the outer shell and the inner cover body, so that the first suction inlet, the first high-pressure generating part and the first blowing outlet form a first airflow channel. The inner cover body is internally provided with a second high-pressure generating part communicated with the at least one second suction inlet, the second high-pressure generating part is provided with a second fan capable of converting the air into a second high-speed airflow, a second blowout port for blowing out the second high-speed airflow is formed in front of the inner cover body, and the second suction inlet, the second high-pressure generating part and the second blowout port form a second airflow channel separated from the first airflow channel.

Description

Air supply device

Technical Field

The present disclosure relates to air supply devices, and particularly to an air supply device with dual active airflow channels.

Background

The use of air-moving devices to create air circulation and air flow is well known. For example, chinese patent publication No. CN 104204543B (corresponding to PCT international publication No. WO2013/140739 JA) discloses a blowing device for generating air circulation and airflow.

The air supply device comprises a shell; at least one suction port for taking in air from outside the housing; a high-pressure air generating part having an impeller for making the air into high-pressure air and a motor for driving the impeller; an annular blow-out port for blowing out the high-pressure air; a first air passage for guiding the high-pressure air from the impeller to the outlet; a plurality of induced air suction ports for inducing the high-pressure air blown out from the blow-out port to suck the air; an induced air mixing part for mixing the air sucked into the induced air suction ports; an induced air outlet for blowing out the induced air of the induced air mixing section; and a second air passage connecting the induced air suction port, the induced air mixing portion, and the induced air discharge port.

Therefore, when the motor inside the high-pressure air generating part drives the impeller to rotate, the generated high-pressure air is blown out from the annular air outlet to form an active high-speed airflow, and the high-pressure air induces the air outside the shell to be sucked in from the induced air suction ports, mixed in the induced air mixing part and blown out from the induced air outlet to form a passive low-speed airflow.

When the annular active high-speed airflow and the columnar passive low-speed airflow flow together, the moving distances of the annular active high-speed airflow and the columnar passive low-speed airflow are different due to different flow rates of the annular active high-speed airflow and the columnar passive low-speed airflow, so that it is difficult to obtain a desired cool feeling in a remote area, and thus improvement is needed.

Disclosure of Invention

The present invention provides an air supply device, which is characterized in that an inner cover is installed in an outer shell, a first air flow channel and a second air flow channel which are separated from each other and do not interfere with each other are respectively formed between the outer shell and the inner cover, the first air flow channel with a first high pressure generating part can generate an active first high pressure air flow, the second air flow channel with a second high pressure generating part can generate an active second high pressure air flow, and the active first high pressure air flow and the active second high pressure air flow can overcome the defect that the moving distance of a passive low speed air flow is too short, so as to improve the circulation of air and the flowing effect of air flow.

To achieve the above objective, the technical means adopted in the present application provides an air supply device, which includes an outer casing and an inner cover disposed inside the outer casing; the outer shell is provided with at least one first suction port and at least one second suction port which can suck air outside the outer shell, a first high-pressure generating part is formed between the outer shell and the inner cover body, the first high-pressure generating part is provided with a first fan which can change the air into first high-speed airflow and a motor which is used for driving the first fan to operate, and one end of an output shaft of the motor is connected with the first fan; an annular first blowing-out port for blowing out the first high-speed airflow is formed between the outer shell and the inner cover body, so that the first suction port, the first high-pressure generating part and the first blowing-out port form a first airflow channel; the inner cover is internally provided with a second high-pressure generating part communicated with the second suction inlet, the second high-pressure generating part is provided with a second fan capable of converting the air into a second high-speed airflow, and the other end of the output shaft of the motor is connected with the second fan; an annular second air outlet for blowing out the second high-speed air flow is formed in front of the inner cover body, and the second air inlet, the second high-pressure generating part and the second air outlet form a second air flow channel separated from the first air flow channel.

Drawings

Fig. 1 and fig. 2 are exploded perspective views of the air supply device in the present disclosure;

fig. 3 and 4 are perspective views of two different viewing angles after the air supply device is assembled;

FIG. 5 is a cross-sectional view of FIG. 4 taken along line A-A;

FIG. 6 is a cross-sectional view of FIG. 4 taken along line B-B;

FIG. 7 is a cross-sectional view of a second embodiment of the blower of the present disclosure; and

fig. 8 is a cross-sectional view of a third embodiment of the blower of the present disclosure.

Detailed Description

In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments.

Fig. 1 and fig. 2 are exploded perspective views of the air supply device in the present disclosure; fig. 3 and 4 are perspective views of two different viewing angles after the air supply device is assembled; FIG. 5 is a cross-sectional view of FIG. 4 taken along line A-A; fig. 6 is a cross-sectional view of fig. 4 taken along line B-B. First, as shown in fig. 1 to 6, basically, the air supply device of the present invention includes an outer casing 1 and an inner casing 2 disposed on the outer casing 1.

The outer casing 1 is formed by a front casing 11 and a rear casing 12 which are connected together to form a sphere, and the outer casing 1 is provided with at least one first suction port 13 and at least one second suction port 14 so as to suck air 3 (shown in fig. 5 and 6) outside the outer casing 1 into the outer casing 1. As shown in fig. 1 and 2, the at least one first suction port 13 is provided at the center of the rear surface of the rear case 12, and the at least one second suction port 14 is provided at the outer peripheral edge of a partition cover 15 attached to the inside of the rear case 12.

The intermediate shield 15 is provided with at least one through hole 151 corresponding to the at least one first suction port 13 for the air 3 to pass through and communicate with, so that a first high pressure generating portion 16 (as shown in fig. 5) is formed between the outer casing 1, for example, the intermediate shield 15 and the inner casing 2, and the first high pressure generating portion 16 has a first fan 161, for example, an impeller or a fan blade, capable of converting the air 3 into a first high-speed airflow 31 and an electric motor 17, for example, a motor, for driving the first fan 161 to operate. An output shaft 171 of the motor 17 is connected to the first fan 161 at one end. The rear housing 12 is provided with at least one first through hole 121 at a position corresponding to the at least one second suction port 14.

The back surface of the rear housing 12 is further connected to a back cover 18, and the back cover 18 is provided with at least one first air inlet 181 and at least one second air inlet 182 corresponding to the at least one first suction port 13 and the at least one second suction port 14, respectively, so that the air 3 can smoothly pass through the at least one first suction port 13 and the at least one second suction port 14 to enter the outer housing 11.

To provide air filtering, a filtering device, such as a filter (not shown in the prior art), is disposed between the back cover 18 and the rear case 12 to filter the air 3 entering the outer case 1.

The inner housing 2 is installed inside the outer housing 1, so that an annular first blowing outlet 191 for blowing out the first high-speed airflow 31 is formed between the outer housing 1 and the inner housing 2, and the at least one first suction port 13, the first high-pressure generating portion 16 and the first blowing outlet 191 form a first airflow channel 19 (as shown in fig. 5), so that the generated first high-speed airflow 31 can be blown out from the first blowing outlet 191 after the air is operated and pushed by the first fan 161.

The inner cover 2 is a hollow body formed by butt-jointing a front cover 21 and a rear cover 22, the motor 17 is installed on the back of the rear cover 22, after another protective cover 172 covers the motor 17, the protective cover 172 is installed on the back of the rear cover 22 to protect the motor 17. The rear cover 22 is provided with at least one second through hole 221 corresponding to the at least one second suction port 14, so that the air 3 passes through the at least one first through hole 121, the at least one second suction port 14 and the at least one second through hole 221 to reach a second high pressure generating portion 23 (as shown in fig. 6) formed by the inner cover 2, and the second high pressure generating portion 23 has a second fan 231, such as an impeller or a fan blade, which converts the air 3 into a second high-speed airflow 32.

An annular second blowing outlet 261 for blowing out the second high-speed airflow 32 is formed in front of the inner cover 2, so that the at least one second suction port 14, the second high-pressure generating portion 23, and the second blowing outlet 261 form a second airflow passage 26 (as shown in fig. 6).

The other end of the output shaft 171 of the motor 17 is connected to the second fan 231. Therefore, when the motor 17 is started, the output shaft 171 synchronously drives the first fan 161 and the second fan 231 to operate, so as to respectively form the first high-speed airflow 31 and the second high-speed airflow 32 without interfering with each other.

In order to make the inner cover 2 have the effect of concentrating the air 3, a diversion cover 25 is attached to the front of the rear cover 22, the diversion cover 25 opens a diversion hole 251 toward the second fan 231, so that the air 3 passing through the at least one second through hole 221 is concentrated through the diversion hole 251, and is then driven and pushed by the second fan 231, so as to blow out the generated second high-speed airflow 32 from the second blowout port 261.

Therefore, the first high-speed airflow 31 generated by the first high-pressure generating portion 16 in the first airflow passage 19 is linearly blown out by the first blowout port 191, and the second high-speed airflow 32 generated by the second high-pressure generating portion 23 in the second airflow passage 26 is linearly blown out by the second blowout port 261. Since the first high-speed airflow 31 and the second high-speed airflow 32 are both active high-speed airflows, in addition to traveling linearly, the moving distances of the first high-speed airflow 31 and the second high-speed airflow 32 can be close to be consistent without loss caused by the difference between the far distance and the near distance of the two airflows, and expected air circulation and cool feeling can be obtained.

In addition, in order to avoid the injury caused by the child touching the second fan 231 by mistake, the second air outlet 261 is provided with a partition 4 through which the second high-speed airflow 32 can pass, the first embodiment of the partition 4 is a control box 41, the control box 41 is installed on the inner wall of the front cover 21 and is positioned at the second air outlet 261, and an annular opening through which the second high-speed airflow 32 can pass is reserved between the second air outlet 261 and the control box 41. The control box 41 has a display screen 411 capable of displaying temperature, time or wind speed when implemented, and if the display screen 411 is a touch screen, the control box can further include at least one touch key 412 capable of controlling on/off, wind speed or time, so as to facilitate the operation of a user.

As shown in fig. 7, for the purpose of illustrating the second embodiment of the air blowing device, compared to the first embodiment, the same reference numerals (symbols) are used to indicate the same components, and since the present embodiment shares many shared components with the previous embodiment, only the differences between the present embodiment and the first embodiment will be described as follows: the partition 4 is implemented by a partition net 42 attached to the second outlet 261 to increase the output of the air volume, and the second fan 231 is a fan blade to form the second high-speed airflow 32 into a spiral shape.

As shown in fig. 8, for the purpose of illustrating the third embodiment of the air supply device, compared to the first embodiment, in the present embodiment, the same reference numerals (symbols) are used to indicate the same components, and since the present embodiment shares many shared components with the previous embodiment, only the differences between the present embodiment and the first embodiment will be described as follows: the partition 4 is implemented by using a partition net 42 to increase the output of the air volume, the second fan 231 is implemented by using an impeller to form the second high-speed airflow 32 to be blown out linearly, and an electric heater 5 is installed inside the inner cover 2 between the second fan 231 and the second air outlet 261 to make the air blower have the function of blowing warm air.

Therefore, through the implementation of the present invention, a first airflow channel and a second airflow channel are respectively formed between the outer casing and the inner casing, which are separated from each other and do not interfere with each other, the first airflow channel having a first high pressure generating portion can generate an active first high pressure airflow, and the second airflow channel having a second high pressure generating portion can generate an active second high pressure airflow, and the active first and second high pressure airflows can overcome the disadvantage of too short moving distance of the passive low speed airflow, so as to improve the circulation of air and the flowing effect of the airflows. Moreover, the first fan and the second fan of the first high-pressure generating part and the second high-pressure generating part are coaxially driven by a single motor, so that the volume of the air supply device can be reduced, and the air supply device can be an unprecedented good structure of the same kind of articles.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air supply device comprises an outer shell and an inner cover body arranged in the outer shell;

the outer shell is provided with at least one first suction port and at least one second suction port which can suck air outside the outer shell, wherein the outer shell is formed by butting a front shell and a rear shell, the first suction port is arranged in the center of the back surface of the rear shell, and the second suction port is arranged on the outer periphery of a partition cover which is connected with the inner side of the rear shell in a connecting way; a first high-pressure generating part is formed between the outer shell and the inner cover body, the first high-pressure generating part is provided with a first fan capable of converting the air into a first high-speed airflow and a motor for driving the first fan to operate, and one end of an output shaft of the motor is connected with the first fan; an annular first blowing-out port for blowing out the first high-speed airflow is formed between the outer shell and the inner cover body, so that the first suction port, the first high-pressure generating part and the first blowing-out port form a first airflow channel; and

the inner cover is internally provided with a second high-pressure generating part communicated with the second suction inlet, the second high-pressure generating part is provided with a second fan capable of converting the air into a second high-speed airflow, and the other end of the output shaft of the motor is connected with the second fan; an annular second air outlet for blowing out the second high-speed air flow is formed in front of the inner cover body, and the second air inlet, the second high-pressure generating part and the second air outlet form a second air flow channel separated from the first air flow channel.

2. The air supply device according to claim 1, wherein the intermediate hood has at least one through hole at a position corresponding to the first suction port, through which the air passes and which is communicated with the first suction port, so that the first high pressure generating portion is located between the intermediate hood and the inner hood.

3. The blower of claim 1, wherein the rear housing defines at least one first aperture at a location corresponding to the second inlet, and the inner casing defines at least one second aperture at a location corresponding to the second inlet.

4. The blower of claim 1, wherein a back cover is further attached to the back side of the rear housing, the back cover defining at least one first air inlet and at least one second air inlet at locations corresponding to the first and second air inlets, respectively.

5. The air supply arrangement of claim 4, wherein a filter arrangement is disposed between the back cover and the rear housing to filter the air entering the outer housing.

6. The blower of claim 1, wherein the inner housing is formed by a front housing and a rear housing that are connected together, a deflector cover is attached to the front of the rear housing, and a deflector hole for the air to pass through is formed in the deflector cover facing the second fan.

7. The blower according to claim 6, wherein the motor is mounted on the back surface of the rear cover, and the protective cover is mounted on the back surface of the rear cover after covering the motor with another protective cover.

8. The air supply device according to claim 1, wherein the second air outlet is provided with a partition through which the second high-speed airflow passes.

9. The air supply device according to claim 8, wherein the partition is a control box attached to an inner wall of the inner casing and located at the second air outlet, so that an annular opening through which the second high-speed airflow passes is reserved between the second air outlet and the control box.

10. The air supply arrangement of claim 8, wherein the partition is a partition net attached to the second air outlet.

11. The blowing device of claim 1, wherein an electric heater is provided inside the inner casing between the second fan and the second outlet.