TWM588176U - Multifunctional fan - Google Patents

Abstract

The present invention provides a multifunctional fan, which includes a cross flow fan unit, a fan unit housing case, a cover, a rotating base, and a wind speed switch. Compared with the existing fan, this creation has the following improvement advantages: the wind speed switch can switch between high and low wind speed; the air outlet of the housing of the fan unit and the side plate of the housing form an integral protective net to protect the user; the housing of the fan unit can be opposite Rotate from 0 to 90 degrees on the rotating base; stainless steel foldable handle allows multi-functional fans to be extracted in multiple directions; grounding plugs are used to replace traditional bare wires for power lines; and the wind deflector has an optimized curved surface design to increase air volume and reduce turbulence .

Description

Multifunctional fan

The invention relates to a fan device, in particular to a multifunctional fan.

A fan, also called a small fan, is a small version of an air valve; it is a motor that uses the impeller to rotate the air to guide the air flow. The fan is generally set on the air side of the air conditioning system and is responsible for sending the adjusted airflow to the target air conditioning area. Installed above the gate is an air door, which is used to block mosquitoes from entering the room, prevent cold air from flowing out, and block outdoor exhaust gas. Small fans are often installed above the elevator as a device for air movement inside the elevator, or as a heat dissipation component in the mechanical device. There are three common modes of operation: centrifugal, axial and cross flow.

In terms of business models, fans are generally sold as accessories and are eventually assembled in buildings or air-conditioning equipment. Therefore, the electrical connection of the fan is simple: there is only one bare wire. With the improvement of the quality of life, people have more needs for outdoor activities, but nowadays, climate variations cause sultry anomalies, so the demand for corresponding outdoor air-conditioning (air conditioning) has also increased. The large air volume gas circulation method provided by traditional fans is the most effective solution to meet the above requirements, but it is difficult to directly face consumers without a complete supporting design. In the existing fan structure, at least the following improvements are needed: the addition of a manual control switch; an anti-misinjection design of the air outlet; a wind direction adjustment mechanism; a portable handle; a utility power plug; and an adjustable wind speed circuit design.

This design is a new form of multifunctional fan based on the above improvements.

This paragraph extracts and compiles some features of this new type. Other features will be revealed in subsequent paragraphs. Its purpose is to cover the spirit and scope of the scope of additional patent applications, with various modifications and similar arrangements.

In order to meet the above needs, this creation proposes an innovative multifunctional fan. The multifunctional fan includes: a cross flow fan unit, including: a drive motor; and a cross flow wind wheel, the axis of the cross flow wind wheel is connected to the rotating shaft of the drive motor, so that the cross flow wind when the drive motor rotates The wheels are driven; a fan unit housing case is fixed to the inside of the fan unit accommodation case through an opening on one side of the fan unit accommodation case, and the fan unit accommodation case is A plurality of air outlets are provided on the other side opposite to the opening; a side cover, the side of the cover is substantially close to an L-shape, and two sides of the cover respectively form a plurality of air inlets, the cover can cover and close the opening; and The rotating base is formed by a bottom plate, an upper side plate, and a lower side plate. The two side plates are axially connected to the fan unit housing casing, and the fan unit housing casing can rotate relative to the rotating base.

Preferably, the upper side plate can be provided with an arc-shaped limiting groove, and a screw passes through the arc-shaped limiting groove and is fixed on one end plate of the fan unit housing casing, and the screw is in the arc-shaped limiting groove. The sliding restricts the rotation of the fan unit housing casing relative to the rotating base.

Preferably, the upper side plate can be provided with a spring plunger, and a plurality of openings are formed on one end plate of the housing of the fan unit, and the spring plunger can be selectively inserted into one of the openings, so that the fan The relative position between the accommodating housing and the rotating base is fixed.

Preferably, the upper side plate may be provided with a stainless steel foldable handle.

Preferably, one side of the cover can be provided with a stainless steel foldable handle.

Preferably, the bottom plate and the lower side plate may be provided with a plurality of foot spacers, respectively.

Preferably, the bottom plate can be provided with more than two hanging holes.

Preferably, the housing of the fan unit can form a wind deflector to direct the airflow from the cross-flow wind wheel to the air outlets to increase the air volume and reduce the turbulence.

According to this creation, the multifunctional fan may further include a wind speed switch, the wind speed switch is externally connected to a wire, and the mains power is obtained through a plug on the wire. The wind speed switch is electrically connected to the driving motor, and is switched to drive the driving motor and stop the driving motor. Or adjust the speed of the drive motor.

According to this creation, the multifunctional fan may further include a control circuit, the control circuit includes: a thermal protector, the thermal protector is electrically connected to a neutral wire of the electric wire and the driving motor, and a line between the driving motor and the driving motor When the temperature rises to a threshold temperature, the thermal protector will open; a capacitor; the capacitor is connected in parallel with the drive motor; a first resistor; the first resistor is connected in series with the capacitor; and a second resistor; The second resistor is connected in series with the first resistor and in parallel with the driving motor. When a live wire of the wire is electrically connected to the first resistor and the second resistor through the wind speed switch, the current flowing through the drive motor is small; when the hot wire passes through the wind speed switch and the second resistor and When the driving motor is electrically connected, a larger current flows through the driving motor.

Compared with the existing fans, the multifunctional fan designed by this author to meet the aforementioned requirements has the following improvement advantages: the wind speed switch can switch the high and low wind speeds, increasing the air volume and wind speed can strengthen the effect of shielding mosquitoes, and avoid the use of speed regulators on the market to cause the driving motor Risk of overheating and burnout; the air outlet and the side plate of the casing form an integrated protective net (not additionally equipped with barbed wire), so that the user's hand will not reach into the housing of the fan unit, which can especially protect the safety of children; the fan The accommodating housing can be rotated from 0 to 90 degrees with respect to the rotating base, so that the direction of the wind is wider; the stainless steel foldable handle allows the multi-functional fan to be extracted in multiple directions; Safety; switch button to switch the wind speed; and wind deflector has an optimized curved surface design to increase air volume and reduce turbulence, and to reduce noise when the multifunctional fan is operating.

This creation will be described more specifically by referring to the following embodiments.

Please refer to FIG. 1 and FIG. 2, FIG. 1 is a schematic diagram of the appearance of a multifunctional fan 1 according to the present invention, and FIG. 2 is an exploded view of the structure of the aforementioned multifunctional fan 1. The multifunctional fan 1 includes a cross-flow fan unit 10, a fan unit housing case 20, a cover 30, a rotating base 40, and a wind speed switch 60. These are explained separately below.

The cross-flow fan unit 10 is composed of a driving motor 102 and a cross-flow wind wheel 104. The axial center of the cross-flow wind wheel 104 is connected to the rotating shaft of the driving motor 102, so that the cross-flow wind wheel 104 is driven when the driving motor 102 rotates. A motor bracket 106 is provided outside the driving motor 102. The motor bracket 106 can assist the cross-flow fan unit 10 to be installed in the fan unit accommodating housing 20.

The cross-flow fan unit 10 is fixed to the inside of the fan unit accommodating case 20 through an opening 200 on one side of the fan unit accommodating case 20. The wind turbine housing casing 20 has a plurality of air outlets 204 on the other side (a casing side plate 202) opposite to the opening 200. The wind turbine accommodating casing 20 can be cut out of an iron plate or a stainless steel plate, bent and joined after pressing (welding or screwing can be used), and the air outlet 204 can be stamped to be integrally formed with other parts of the side plate 202 of the casing.

The side surface of the face cover 30 is substantially L-shaped (one side plate is long and the other side is short). A plurality of air inlets 300 are respectively formed on two sides of the cover 30, and the cover 30 may cover the opening 200 that closes the housing 20 of the fan unit. A stainless steel foldable handle 302 is provided on one side of the cover 30, so that the user can extract the multifunctional fan 1 in a horizontal direction. In terms of materials, the cover 30 can be made of an iron plate or a stainless steel plate after being cut, stamped, and bent.

The rotating base 40 is formed by a bottom plate 400, an upper side plate 401, and a lower side plate 402.
The two side plates are respectively provided with shaft holes 206 and 403, and a pair of lock screws 50 are passed through the shaft holes 206 and 403 and a washer 51 is used to axially connect the fan unit to the housing 20. Therefore, the fan unit housing case 20 can be rotated relative to the rotating base 40. That is, the fan unit housing case 20 rotates relative to the rotation base 40 with the connection line between the lock screws 50 as an axis. According to the present design, the upper side plate 401 is provided with an arc-shaped limiting groove 4011, and a screw 4012 passes through the arc-shaped limiting groove 4011 and is fixed on one end plate 208 of the fan unit housing case 20. The screw 4012 slides in the arc-shaped limiting groove 4011 to limit the rotation of the fan unit housing casing 20 relative to the rotating base 40. Therefore, the fan unit housing case 20 can be rotated from the state of FIG. 1 to the state of FIG. 4 (0 to 90 degrees). The relative position of the wind turbine housing case 20 and the rotating base 40 can be temporarily fixed by the screw 4012, but it is easy to move as soon as external force is applied. In order to solve this problem, a spring plunger 4013 is provided on the upper side plate 401, and a plurality of openings are formed in the end plate 208 of the housing 20 of the fan unit (covered by a wind deflection plate 209 in FIG. 2). The spring plunger 4013 can be selectively inserted into one of these openings, so that the relative position between the fan unit housing casing 20 and the rotating base 40 is fixed.

In addition, a stainless steel foldable handle 4014 is provided on the upper side plate 401, so that the user can extract the multifunctional fan 1 in a horizontal direction. The bottom plate 400 and the lower side plate 402 are respectively provided with a plurality of foot pads 404, so that the multifunctional fan 1 can be stably stood vertically or horizontally. In addition, as shown in FIG. 4, the bottom plate 400 is provided with two or more hanging holes 4015 for the multifunctional fan 1 to be temporarily fixed on the wall through a fixing object (such as a nail). The rotating base 40 can be formed by cutting, stamping, or bending an iron plate or stainless steel.

As shown in FIG. 1, the airflow of the multifunctional fan 1 is taken into the fan assembly housing 20 by the cross-flow wind wheel 104 through the air inlet 300 (as shown by the white arrow), and exits from the air outlet 204 (as the black As indicated by the arrow). In order to make the wind energy more concentrated, the wind turbine accommodating housing 20 may form the aforementioned wind deflector plate 209 for guiding the airflow from the cross-flow wind wheel 104 to the air outlets 204 to increase the air volume and reduce the turbulence.

The wind speed switch 60 of the multifunctional fan 1 is externally connected to an electric wire 61, and the utility power is obtained through a plug 62 on the electric wire 61. The wind speed switch 60 is electrically connected to the driving motor 102, and is switched to drive the driving motor 102, stop the driving motor 102, or adjust the rotation speed of the driving motor 102. The design of the air speed switch 60 and a control circuit 70 of the drive motor 102 can be illustrated in FIG. 3. The control circuit 70 includes a thermal protector 700, a capacitor 701, a first resistor 702, and a second resistor 703. The thermal protector 700 is a combination of two different alloys, which will generate heat after passing current. Due to the different thermal expansion coefficients of the two different alloys, the alloy will inevitably bend in one direction, and the contacts will be de-energized. The thermal protector 700 is electrically connected to a neutral wire 611 of the electric wire 61 and the driving motor 102. When the temperature of the line between the drive motor 102 and a threshold temperature rises, the thermal protector 700 will be disconnected and the drive motor 102 will no longer operate, thereby protecting the multifunctional fan 1 from spontaneous combustion due to excessive temperature. The capacitor 701 is connected in parallel with the drive motor 102, the first resistor 702 is connected in series with the capacitor 701, and the second resistor 703 is connected in series with the first resistor 702 and in parallel with the drive motor 102. When a live wire 612 of the electric wire 61 is electrically connected to the first resistor 702 and the second resistor 703 through the wind speed switch 60 ("LO" position of the wind speed switch 60), the current flowing through the driving motor 102 is small, and the driving motor 102 The rotation speed is slow, and the air flow rate from the air outlet 204 becomes smaller, and the wind speed becomes slower. When the hot wire 612 is electrically connected to the second resistor 703 and the drive motor 102 through the wind speed switch 60 ("HI" position of the wind speed switch 60), the current flowing through the drive motor 102 is large, and the speed of the drive motor 102 is fast. The air flow from the air outlet 204 becomes larger, and the wind speed becomes faster. When the wind speed switch 60 is turned to the OFF position, since the circuit through the driving motor 102 is not formed, the driving motor 102 will not rotate.

Although this creation has been disclosed as above in the form of implementation, it is not intended to limit this creation. Any person with ordinary knowledge in the technical field can make some changes and decorations without departing from the spirit and scope of the new model. The scope of protection of this creation shall be determined by the scope of the attached patent application.

1‧‧‧Multifunctional Fan
10‧‧‧Cross-flow fan unit
102‧‧‧Drive motor
104‧‧‧Cross flow wind wheel
106‧‧‧Motor bracket
20‧‧‧Fan unit housing
200‧‧‧ opening
202‧‧‧shell side plate
204‧‧‧outlet
206‧‧‧shaft hole
208‧‧‧End plate
209‧‧‧wind deflector
30‧‧‧ face cover
300‧‧‧air inlet
302‧‧‧Stainless steel folding handle
40‧‧‧rotating base
400‧‧‧ floor
401‧‧‧upper side plate
4011‧‧‧arc limit stop
4012‧‧‧Screw
4013‧‧‧Spring plunger
4014‧‧‧Stainless steel folding handle
4015‧‧‧Hanging hole
402‧‧‧Lower side plate
403‧‧‧shaft hole
404‧‧‧foot gasket
50‧‧‧locking screw
51‧‧‧ Gasket
60‧‧‧Air Speed Switch
61‧‧‧Wire
611‧‧‧Midline
612‧‧‧FireWire
62‧‧‧Plug
70‧‧‧control circuit
700‧‧‧ thermal protector
701‧‧‧capacitor
702‧‧‧first resistor
703‧‧‧Second resistor

FIG. 1 is a schematic diagram of the appearance of a multifunctional fan according to the present invention, FIG. 2 is an exploded view of the structure of the aforementioned multifunctional fan, FIG. 3 is a circuit diagram of a control circuit, and FIG. 4 is another schematic diagram of the appearance of the multifunctional fan.

Claims (10)

A multifunctional fan comprising:
Consistent flow fan units, including:
A drive motor; and a cross flow wind wheel, the axis of the cross flow wind wheel is connected to the rotating shaft of the drive motor, so that the cross flow wind wheel is driven when the drive motor rotates;
A fan unit housing casing is fixed in the fan unit housing casing through an opening on one side of the fan unit housing casing, and the fan unit housing casing is opposite to the opening. A plurality of air outlets are opened on the other side;
A cover, the side of the cover is substantially close to an L-shape, and two sides of the cover are respectively formed with a plurality of air inlets, and the cover can cover and close the opening; A lower side plate is formed, and the two side plates are axially connected to the fan unit accommodating case, and the fan unit accommodating case is rotatable relative to the rotating base. The multifunctional fan according to item 1 of the scope of patent application, wherein the upper side plate is provided with an arc-shaped limiting groove, and a screw passes through the arc-shaped limiting groove and is fixed on an end plate of the housing of the fan unit. The screw slides in the arc-shaped limiting groove to restrict the rotation of the fan unit housing casing relative to the rotating base. The multifunctional fan according to item 1 of the scope of patent application, wherein the upper side plate is provided with a spring plunger, a plurality of openings are formed on one end plate of the housing of the fan unit, and the spring plunger can be selectively plugged Into one of the openings, so that the relative position between the fan housing and the rotating base is fixed. The multifunctional fan according to item 1 of the patent application scope, wherein the upper side plate is provided with a stainless steel foldable handle. The multifunctional fan according to item 1 of the scope of patent application, wherein a side of the cover is provided with a stainless steel foldable handle. The multifunctional fan according to item 1 of the scope of patent application, wherein the bottom plate and the lower side plate are respectively provided with a plurality of foot pads. The multifunctional fan according to item 1 of the patent application scope, wherein the bottom plate is provided with more than two hanging holes. The multifunctional fan according to item 1 of the scope of the patent application, wherein the fan unit accommodating casing forms a wind deflector to direct the airflow from the cross-flow wind wheel to the air outlets to increase the air volume and reduce Spoiler. The multifunctional fan according to item 1 of the scope of patent application, further comprising a wind speed switch, the wind speed switch is externally connected to a wire, and the mains power is obtained through a plug on the wire. The wind speed switch is electrically connected to the drive motor, and is switched to drive the drive. Motor, stop the drive motor, or adjust the speed of the drive motor. The multifunctional fan according to item 9 of the scope of patent application, further comprising a control circuit, the control circuit includes:
A thermal protector, which is electrically connected to a neutral line of the electric wire and the driving motor, and when the temperature of the line between the thermal protector and the driving motor rises to a threshold temperature, the thermal protector will open;
A capacitor; the capacitor is connected in parallel with the drive motor;
A first resistor; the first resistor is connected in series with the capacitor; and a second resistor; the second resistor is connected in series with the first resistor and in parallel with the drive motor,
Wherein, when a live wire of the wire is electrically connected to the first resistor and the second resistor through the wind speed switch, the current flowing through the driving motor is small; when the hot wire passes through the wind speed switch and the second resistor When the device and the driving motor are electrically connected, the current flowing through the driving motor is relatively large.