TWM542749U - Air supply device - Google Patents

Description

Air supply device

The present invention relates to a blower device, and more particularly to a blower device having a dual active airflow duct.

It is a well-known technique to generate a circulation and a gas flow of air by means of a blower. For example, Chinese Patent Publication No. CN 104204543 B (corresponding to PCT International Publication No. WO 2013/140739 JA patent) discloses a blowing device for generating air circulation and air flow.

The air blowing device includes a casing; at least one suction port for taking in air from outside the casing; a high-pressure air generating portion having an impeller for making the air high-pressure air and an electric motor for driving the impeller; blowing the An annular air outlet of the high pressure air; the high pressure air is guided from the impeller to a first air passage of the air outlet; the high pressure air blown by the air outlet induces a plurality of induced air intake ports for inhaling the air; An induced air mixing portion that is mixed with the air that induces the air intake port; an induced air blowing port that blows the induced air of the induced air mixing portion; and the induced air intake port, the induced air mixing portion, and The second air passage connecting the air blowing outlet is connected.

Therefore, when the motor inside the high-pressure air generating portion drives the impeller to rotate, the generated high-pressure air is blown out from the annular air outlet to form an active high-speed air which induces the air outside the casing. After being sucked by the induced air intake ports, they are mixed in the induced air mixing portion, and then blown out by the induced air blowing port to form a passive low-speed airflow.

When the annular active high-speed airflow flows together with the columnar passive low-speed airflow, the moving distance between the annular active high-speed airflow and the columnar passive low-speed airflow is also different because of the different flow rates of the two, and it is difficult to The area in the distance is expected to be cool and needs improvement.

The main purpose of the present invention is to provide an air blowing device, which is provided with an inner cover body in an outer casing body, and a first air flow passage is formed between the outer casing body and the inner cover body, and the air flow is mutually undisturbed. a second air flow passage, the first air flow passage having a first high pressure generating portion capable of generating an active first high pressure air flow, and the second air flow passage having a second high pressure generating portion capable of generating an active one The second high-pressure airflow, the active first and second high-pressure airflows can overcome the shortcoming of the moving distance of the passive low-speed airflow to improve air circulation and airflow.

In order to achieve the foregoing objectives, the technical means adopted in the present invention is to provide an air supply device including an outer casing and an inner casing disposed in the outer casing; the outer casing is provided to be external to the outer casing Forming a first high pressure generating portion between the outer casing and the inner casing, the first high pressure generating portion having the at least one first suction port and the at least one second suction port The air becomes a first fan of the first high-speed airflow, and an electric motor for driving the operation of the first fan, an output shaft of the motor is connected to the first fan at one end; the outer casing and the inner casing An annular first blowing outlet for blowing the first high-speed airflow is formed between the covers, so that the first suction inlet, the first high-pressure generating portion and the first outlet are a first airflow passage; And a second high pressure generating portion having a second high pressure generating portion, wherein the second high pressure generating portion has a second fan capable of forming the air into a second high speed airflow. Electric motor The other end of the output shaft is connected to the second fan; an annular second blowing outlet for blowing the second high-speed airflow is formed in front of the inner cover body, and the second suction port and the second high-voltage generating portion are The second air outlet is a second air flow passage that is spaced apart from the first air flow passage.

First, referring to FIG. 1 to FIG. 6 , basically, the air blowing device of the present invention comprises an outer casing 1 and an inner casing 2 disposed on the outer casing 1 .

The outer casing 1 is butted by a front casing 11 and a rear casing 12 to form a ball. The outer casing 1 is provided with at least one first suction opening 13 and at least one second suction opening 14 for air outside the outer casing 1. 3 (shown in FIGS. 5 and 6) is sucked into the outer casing 1. As shown in FIG. 1 and FIG. 2, the at least one first suction port 13 is disposed at the center of the back surface of the rear case 12, and the at least one second suction port 14 is disposed at a middle of the rear case 12. The outer circumference of the cover 15.

The intermediate partition cover 15 defines at least one first through-hole 13 at least one through hole 151 through which the air 3 passes and communicates between the outer casing 1 and the intermediate cover 15 and the inner cover 2 Forming a first high voltage generating portion 16 (shown in FIG. 5) having a first fan 161 capable of forming the air 3 into a first high velocity air stream 31, such as an impeller or a fan blade, and An electric motor 17, such as a motor, that drives the first fan 161 to operate. An output shaft 171 of the motor 17 is connected to the first fan 161 at one end. At least one first through hole 121 is defined in the rear case 12 corresponding to the position of the at least one second suction port 14.

The back cover 12 further includes a back cover 18, and the back cover 18 defines at least one first air inlet 181 and at least one first position corresponding to at least one first suction port 13 and the at least one second suction port 14 The two air inlets 182 enable the air 3 to smoothly pass through the at least one first suction port 13 and the at least one second suction port 14 to enter the outer casing 11.

In order to provide an air filtering function, a filtering device, such as a filter screen (known, not shown), is disposed between the back cover 18 and the rear casing 12 to filter the air entering the outer casing 1. .

The inner cover body 2 is mounted inside the outer casing 1 such that an annular first air outlet 191 for blowing the first high-speed airflow 31 is formed between the outer casing 1 and the inner casing 2, so that the at least one The first suction port 13, the first high pressure generating portion 16, and the first air outlet 191 become a first air flow passage 19 (shown in FIG. 5), and the air is operated and pushed by the first fan 161 so as to The generated first high-speed air stream 31 is blown from the first air outlet 191.

The inner cover body 2 is connected to a rear cover 22 by a front cover 21 to form a hollow body. The motor 17 is mounted on the back surface of the rear cover 22, and a protective cover 172 is wrapped around the motor 17 to protect the inner cover. A cover 172 is attached to the back of the rear cover 22 to protect the motor 17. The rear cover 22 is configured to open at least one second through hole 221 corresponding to the position of the at least one second suction port 14 to pass the air 3 through the at least one first through hole 121 and the at least one second suction port. 14 and the at least one second through hole 221 reach a second high voltage generating portion 23 (shown in FIG. 6) formed by the inner cover 2, and the second high pressure generating portion 23 has the air 3 as a first A second fan 231 of the high velocity air stream 32, such as an impeller or a fan blade.

An annular second outlet 261 for blowing the second high-speed air stream 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 outlet 261 become one The second air flow passage 26 (shown in Figure 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 to form the first high-speed airflow 31 and the second high-speed airflow 32 that do not interfere with each other.

In order to condense the air 3 in the inner cover 2, a guide cover 25 is disposed in front of the rear cover 22. The guide cover 25 defines a flow guiding hole 251 toward the second fan 231. The air 3 passing through the at least one second through hole 221 is concentrated by the flow guiding hole 251, and is operated and pushed by the second fan 231 to send the generated second high-speed airflow 32 from the second air outlet. 261 blown out.

Therefore, the first high-speed airflow 31 generated by the first high-voltage generating portion 16 in the first airflow passage 19 is linearly blown by the first air outlet 191, and the second high voltage in the second airflow passage 26 The second high-speed air stream 32 generated by the generating portion 23 is linearly blown by the second air outlet 261. Since the first high-speed airflow 31 and the second high-speed airflow 32 are both active high-speed airflows, in addition to being able to travel linearly, the moving distances of the first high-speed airflow 31 and the second high-speed airflow 32 can be increased. Nearly consistent, without the lack of distance between the two streams of air, and the expected air circulation and cooling.

In addition, in order to prevent the child from accidentally touching the damage caused by the second fan 231, the second air outlet 261 is provided with a spacer 4 for the second high-speed airflow 32 to pass, and the first implementation of the spacer 4 For example, a control box 41 is attached to the inner wall of the front cover 21 and located at the second air outlet 261, so that the second air outlet 261 and the control box 41 are reserved for the second An annular opening through which the high velocity air stream 32 passes. The control box 41 is configured to have a display screen 411 capable of displaying temperature, time or wind speed. If the display screen 411 is a touch screen, the touch screen 411 can further include at least one touch button 412 that can control the switch, wind speed or time. To facilitate the user's operation.

FIG. 7 is a schematic view showing a second embodiment of the air blowing device. The same reference numerals (symbols) as in the first embodiment are used to denote the same components, and the present embodiment is shared with the foregoing embodiment. There are many common components. Therefore, only the difference between the present embodiment and the first embodiment is described as follows: the spacer 4 is implemented as a spacer net 42 attached to the second air outlet 261 to increase the air volume. The second fan 231 is configured to be fan-shaped so that the blown second high-speed air stream 32 is formed in a spiral shape.

FIG. 8 is a schematic view showing a third embodiment of the air blowing device. The same reference numerals (symbols) as in the first embodiment are used to denote the same components, and the present embodiment is shared with the foregoing embodiment. There are many common components. Therefore, only the difference between this embodiment and the first embodiment will be described as follows: the spacer 4 is implemented with a spacer net 42 to increase the output of the air volume, and the second fan 231 is used. The impeller is arranged such that the second high-speed airflow 32 that is blown out is formed in a straight line, and an electric heater 5 is disposed inside the inner casing 2 between the second fan 231 and the second outlet 261, so that the air is blown The device has the function of blowing heat.

Therefore, the effect of the gain of the present invention is that a first airflow passage and a second airflow passage are formed between the outer casing and the inner casing, respectively, and the airflow does not interfere with each other, and has a first The first airflow passage of a high pressure generating portion can generate an active first high pressure airflow, and the second airflow passage having a second high pressure generating portion can generate an active second high pressure airflow, the active The first and second high-pressure airflows can overcome the shortcoming of the moving distance of the passive low-speed airflow to improve the circulation of the air and the flow of the airflow. Furthermore, the first high-voltage generating portion and the second high-voltage generating portion of the first fan and the second fan are coaxially driven by a single motor, which can reduce the volume of the air blowing device, which is unprecedented in the same kind of articles. A great structure.

The disclosure of the present invention is a preferred embodiment. Any change or modification of the present invention originating from the technical idea of the present invention and being easily inferred by those skilled in the art will not deviate from the scope of patent rights of the present invention.

1‧‧‧ outer casing

11‧‧‧ front shell

12‧‧‧ Back shell

121‧‧‧First through hole

13‧‧‧First intake

14‧‧‧second suction port

15‧‧‧Intermediate cover

151‧‧‧Perforation

16‧‧‧First High Voltage Generation Department

161‧‧‧First fan

17‧‧‧Electric motor

171‧‧‧ Output shaft

172‧‧‧ protective cover

18‧‧‧Back cover

181‧‧‧first air inlet

182‧‧‧second air intake

19‧‧‧First airflow channel

191‧‧‧First blowout

2‧‧‧ inner cover

21‧‧‧ front cover

22‧‧‧ Back cover

221‧‧‧Second through hole

23‧‧‧Second High Voltage Generation Department

231‧‧‧second fan

25‧‧‧ diversion cover

251‧‧‧Inlet

26‧‧‧Second airflow channel

261‧‧‧second blowout

3‧‧‧ Air

31‧‧‧First high-speed airflow

32‧‧‧Second high-speed airflow

4‧‧‧Isolation

41‧‧‧Control box

411‧‧‧display screen

412‧‧‧Touch keys

42‧‧‧Isolation network

5‧‧‧Electric heater

In order to further reveal the specific technical content of the present case, first refer to the drawings, wherein: Figure 1 and Figure 2 are exploded perspective views of two different viewing angles of the air blowing device of the present invention; Figures 3 and 4 show two different viewing angles of the air blowing device after assembly. Figure 5 is a cross-sectional view taken along line AA of Figure 4; Figure 6 is a cross-sectional view of Figure 4 taken along line BB; Figure 7 is a cross-sectional view of the second embodiment of the air supply device of the present invention; A cross-sectional view of a third embodiment of the air blowing device of the present invention.

1‧‧‧ outer casing

11‧‧‧ front shell

12‧‧‧ Back shell

121‧‧‧First through hole

13‧‧‧First intake

14‧‧‧second suction port

15‧‧‧Intermediate cover

161‧‧‧First fan

17‧‧‧Electric motor

171‧‧‧ Output shaft

172‧‧‧ protective cover

18‧‧‧Back cover

181‧‧‧first air inlet

182‧‧‧second air intake

191‧‧‧First blowout

2‧‧‧ inner cover

21‧‧‧ front cover

22‧‧‧ Back cover

221‧‧‧Second through hole

231‧‧‧second fan

25‧‧‧ diversion cover

251‧‧‧Inlet

261‧‧‧second blowout

4‧‧‧Isolation

41‧‧‧Control box

411‧‧‧display screen

412‧‧‧Touch keys

Claims (13)

An air blowing device includes an outer casing and an inner casing disposed in the outer casing; the outer casing is provided with at least one first suction port capable of sucking air outside the outer casing and at least one a first suction port, a first high pressure generating portion is formed between the outer casing and the inner casing, and the first high pressure generating portion has a first fan capable of turning the air into a first high-speed airflow, and An electric motor for driving the operation of the first fan, an output shaft of the electric motor is connected to the first fan at one end; and a gap between the outer casing and the inner casing is formed for the first high-speed airflow An annular first blowing outlet, the first suction port, the first high pressure generating portion and the first blowing port being a first air flow passage; and the inner casing body having a communication connection with the second suction a second high-voltage generating portion of the port, the second high-voltage generating portion has a second fan capable of turning the air into a second high-speed airflow, and the other end of the output shaft of the motor is connected to the second fan ; An annular second blowing outlet for blowing the second high-speed airflow is formed in front of the inner cover body, so that the second suction inlet, the second high-pressure generating portion and the second blowing outlet become the first airflow A second air flow passage separated from each other by the passage. The air blowing device of claim 1, wherein the outer casing system is formed by a front shell and a rear shell, the first suction inlet is disposed at a center of the back shell of the rear shell, and the second The suction port is provided on the outer periphery of a middle partition that is attached to the inner side of the rear case. The air blowing device according to claim 2, wherein the intermediate partition cover opens at least one perforation for the passage of the air and communicates with the first suction port, so that the first high pressure generating portion is located Between the intermediate partition cover and the inner cover body. The air blowing device of claim 1, wherein the first fan is selected from an impeller or a blade; and the second fan is selected from an impeller or a fan blade. The air supply device of claim 2, wherein the rear casing opens at least one first through hole corresponding to the second suction port position, and the inner cover body is connected to the second suction port position. At least one second through hole. The air supply device of claim 2, wherein the back cover is further provided with a back cover, and the back cover is provided with at least one corresponding to each of the first suction port and the second suction port. An air inlet and at least one second air inlet. The air blowing device of claim 6, wherein a filter device capable of filtering the air entering the outer casing is disposed between the back cover and the rear case. The air supply device of claim 1, wherein the inner cover system is formed by a front cover and a rear cover, and a rear cover is attached to the front cover, and the flow cover is facing The second fan position defines a flow guiding hole through which the air passes. The air supply device of claim 8, wherein the motor is mounted on the back of the rear cover, and after a protective cover is wrapped around the motor, the protective cover is attached to the rear. The back of the cover. The air blowing device of claim 1, wherein the second air outlet is provided with a spacer for the passage of the second high speed airflow. The air blowing device of claim 10, wherein the spacer is a control box, and the control box is attached to an inner wall of the inner cover and located at the second air outlet, so that An annular opening for the passage of the second high velocity airflow is reserved between the second air outlet and the control box. The air supply device of claim 10, wherein the spacer is a spacer attached to the second air outlet. The air blowing device according to claim 1, wherein an electric heater is disposed inside the inner casing between the second fan and the second air outlet.