WO2014187270A1

WO2014187270A1 - Fan and nozzle thereof used for same

Info

Publication number: WO2014187270A1
Application number: PCT/CN2014/077619
Authority: WO
Inventors: 任文华
Original assignee: Ren Wenhua
Priority date: 2013-05-18
Filing date: 2014-05-16
Publication date: 2014-11-27
Also published as: CN105484981A; CN105927512A; CN104165134B; CN104165134A; CN105927512B

Abstract

Disclosed is a fan (100), which is characterized in that the fan (100) comprises a base (2) and a nozzle (1) which is connected to the base (2), wherein the nozzle (1) comprises an inlet part (3) and a main body (4); the main body (4) can slide from a non-oblique location to an oblique location relative to the inlet part (3); the inlet part (3) comprises an air inlet tube (15) and a first member (16) which is connected to the air inlet tube (15); and the main body (4) comprises an outer shell (6), an inner passage (14) used for accepting an air flow, an exhaust port (7) used for emitting the air flow, and an opening (40) used for enabling the air inlet tube (15) to extend into the opening, wherein the first member (16) is at least partially located in the outer shell (6). The inclination of the main body of the nozzle (1) of the fan (100) relative to the inlet part (3) of the nozzle (1) may not enable the centre of gravity of the whole fan (100) to generate greater offset, thereby being beneficial in improving the stability of the fan (100).

Description

Description of the fan and its nozzle for a fan

The present invention relates to a fan and a nozzle therefor.

Background technique

Conventional fans typically include a set of blades that rotate about a rotating shaft and a motor that drives the set of blades to rotate to create an air flow. The set of blades is typically located within a cage that allows airflow to pass through while preventing the human body from contacting the set of rotating blades.

The fans can be of various sizes and shapes. For example, the ceiling fan can have a diameter of at least 1000 mm and is typically mounted to the ceiling in a suspended manner to provide a downward flow of air. As another example, a table fan typically has a diameter of 300 mm and is generally free to stand up and be easily moved. Other types of fans can be placed on the floor or mounted on a wall.

A disadvantage of this type of fan is that the airflow generated by the rotating blades is generally non-uniform or "surge." This is uncomfortable for the user. Another disadvantage is that although the rotating blades are located in the cage, in some cases, the human body is also at risk of touching the rotating blades.

A Chinese patent (Application No.: 201020647163.6), which is issued on Jul. 20, 2011, is hereby incorporated by reference. The fan includes a base and a head provided with a nozzle, and a spherical sliding fit between the top surface of the base and the bottom surface of the head allows the head to be tilted from the non-tilted position to the inclined position relative to the base.

This fan has no exposed rotating blades and produces a smooth airflow, improving the quality of the airflow and the safety of use. However, when the head of such a fan is in an inclined position, its stability is not good; the overall appearance of the fan is also greatly affected. Summary of the invention

A first aspect of the invention is to provide a fan. The fan is characterized in that the fan includes a base and a nozzle connected to the base, the nozzle includes an inlet portion and a main body, and the main body is slidable from the non-tilted position to the inclined portion with respect to the inlet portion Positioning, the inlet portion includes an intake pipe and a first member connected to the intake pipe, the body including an outer casing, an inner passage for receiving a gas flow, an exhaust port for emitting a gas flow, and An opening into which the intake pipe extends, wherein the first member is at least partially located within the outer casing.

Preferably, the first member is all located within the outer casing.

The main body of the nozzle of the fan can slide from the non-tilted position to the inclined position with respect to the inlet portion of the nozzle, which facilitates the nozzle to conveniently change the direction of the wind in a vertical plane; since the mass of the nozzle is relatively small relative to the mass of the base The inclination of the main body of the nozzle relative to the inlet portion of the nozzle does not cause a large deviation of the center of gravity of the entire fan, which is advantageous for improving the stability of the fan; in addition, when the nozzle body of the fan is in an inclined position and a non-tilted position The overall appearance of the fan is good. Conducive to attracting users or consumers.

The angle of inclination of the body with respect to the inlet portion in the most inclined position is preferably between 6 and 30, more preferably between 8 and 15 .

Preferably, the first member is in contact with the inner surface of the outer casing. For example, the first member is in contact with an inner surface of the outer casing located near its opening. Preferably, the opposing surfaces of the first member and the outer casing portion in contact with the first member are correspondingly curved. The first member preferably has a correspondingly curved lower surface, and the outer casing portion of the outer casing that is in contact with the first member has a correspondingly curved inner surface. For example, the lower surface of the first member may be convex, and the inner surface of the outer casing portion of the outer casing that is in contact with the first member may be concave. As another example, the lower surface of the first member may be concave, and the inner surface of the outer casing portion of the outer casing that is in contact with the first member may be convex.

In a preferred embodiment, the nozzle includes a flexible seal between the first member and the outer casing. This facilitates the airtightness of the nozzle between the first member and the outer casing to reduce leakage of air from the gap between the first member and the outer casing. The flexible seal preferably includes a rubber seal. The flexible seal may be attached to the first member or may be attached to the inner surface of the outer casing.

Preferably, the body further includes a second member located within the outer casing and coupled to the outer casing, wherein the second member and the outer casing form a chute, and the first member is partially located in the chute. This facilitates the sliding of the first member in the chute to reliably slide or tilt the body relative to the inlet portion.

The inlet portion preferably includes a third member external to the outer casing and coupled to the intake pipe, wherein there is a gap between the first member and the third member, the outer casing having a portion located in the gap and in contact with the third member. This facilitates sliding of the outer casing in the gap to reliably slide or tilt the body relative to the inlet portion.

The first member preferably includes a curved slide having a through hole. The shape of the through hole of the first member includes a circle, an ellipse, and a rectangle. The rectangle preferably comprises a rounded rectangle.

The intake pipe preferably includes a circular intake pipe, an elliptical intake pipe, and a rectangular intake pipe. The rectangular intake pipe preferably includes a rounded rectangular intake pipe. The intake pipe preferably includes an inner portion located within the outer casing and an outer portion external to the outer casing.

The nozzle preferably extends around the through hole, and air from the outside of the nozzle is drawn through the through hole by the air current emitted from the exhaust port. The nozzle preferably comprises an annular nozzle, the height of the nozzle preferably being between 200 mm and 600 mm, more preferably between 250 mm and 500 mm.

The venting opening preferably comprises a slit-like venting opening whose venting opening at the outlet is typically between 0.5 mm and 8 mm, preferably between 1 mm and 3.5 mm.

The pedestal preferably includes a structure for creating an air flow through the nozzle. The structure for creating an air flow through the nozzle includes an impeller shroud, an impeller located within the impeller shroud, and a motor that drives the impeller to rotate. The impeller can be a centrifugal impeller or it can be The mixed flow impeller, preferably a mixed flow impeller; the rotational speed of the impeller is typically between 800 rpm and 7500 rpm, preferably between 1200 rpm and 7000 rpm. The motor can be a DC brushless motor or an AC motor.

In a preferred embodiment, the base includes a base, a base below the base, and a gas delivery tube above the base, wherein the gas delivery tube is coupled to the inlet tube of the nozzle and the base is swingable relative to the base.

Preferably, the intake pipe of the nozzle is inserted into the output end of the base and screwed, which facilitates mounting or dismounting between the nozzle and the base.

A second aspect of the invention is to provide a nozzle for a fan. The nozzle is characterized in that the nozzle includes an inlet portion and a main body, the main body is slidable from an unslanted position to an inclined position with respect to the inlet portion, and the inlet portion includes an intake pipe and is connected to the intake pipe a first member, the body comprising an outer casing, an inner passage for receiving a gas flow, an exhaust port for emitting a gas flow, and an opening for allowing the intake pipe to extend, wherein the first member has at least Partially located within the outer casing.

Preferably, the first member is all located within the outer casing.

The nozzle can slide the main body from the non-inclined position to the inclined position with respect to the inlet portion, which facilitates the nozzle to conveniently change the direction of the wind in a vertical plane to meet different requirements of the user; in addition, the nozzle is in an inclined position. The nozzles look good when they are in a non-tilted position.

The first member is preferably in contact with the inner surface of the outer casing.

The body preferably includes a second member located within the outer casing and coupled to the outer casing, wherein the second member and the outer casing form a chute and the first member is partially located in the chute.

The inlet portion preferably includes a third member external to the outer casing and coupled to the intake pipe, wherein there is a gap between the first member and the third member, and the outer casing is partially located in the gap and is in contact with the third member .

The above features relating to the first aspect of the invention are equally applicable to the second aspect of the invention, and vice versa.

The above description regarding the first aspect of the invention applies equally to the second aspect of the invention, and vice versa.

DRAWINGS

1 is a schematic view of a fan of the present invention.

Figure 2 is a side view of the fan shown in Figure 1.

Figure 3 is a schematic illustration of the nozzle of the fan shown in Figure 1.

Figure 4 is a side view of the nozzle of the fan shown in Figure 1.

Figure 5 is a schematic illustration of the base of the fan shown in Figure 1.

Figure 6 is an enlarged cross-sectional view taken along line A - A in Figure 3 .

Figure 7 is an enlarged cross-sectional view taken along line B-B in Figure 4 .

Figure 8 is an enlarged perspective view of the inlet portion of the nozzle shown in Figure 3. Figure 9 is an enlarged cross-sectional view taken along line CC of Figure 5.

Figure 10 is a side elevational view of the fan of Figure 1 tilted forward to a position.

Figure 11 is a side elevational view of the fan of Figure 1 tilted back to a position.

Figure 12 shows an alternative construction of the nozzle shown in Figure 7.

Specific lung

Fig. 1 is a schematic view of a fan of the present invention as seen from the front of the apparatus, and Fig. 2 is a side view of the fan shown in Fig. 1. As can be seen from Figures 1 and 2, the fan 100 includes a base 2 and a nozzle 1 on the base 2. The base 2 includes a base 10 and a base 8 on the base 10, the base 8 including an air inlet 9 and a plurality of buttons 11, 12 and 13 operable by a user, the air inlet 9 being in the form of a plurality of holes formed in the base housing . Air outside the fan is drawn into the base 8 through the air inlet 9.

Figure 3 is a schematic view of the nozzle portion of the fan shown in Figure 1, and Figure 4 is a side view of the nozzle portion of the fan shown in Figure 1. As can be seen from Figures 3 and 4, the nozzle 1 includes a body 4 and an inlet portion 3. Referring to Figures 6, 7, and 8, the inlet portion 3 includes an intake pipe 15 and a first member 16 coupled to the upper end of the intake pipe 15. The first member 16 is a curved plate having a through hole 19, and the through hole 19 is a rounded rectangular through hole; the first member 16 is located in the outer casing 6, and the intake pipe 15 is a rounded rectangular intake pipe, and the intake pipe 15 Formed with the first member 16.

The main body 4 includes an outer casing 6, an inner passage 14 for receiving a gas flow, an exhaust port 7 for emitting a gas flow, an opening 40 for allowing the intake pipe 15 to protrude, and a second member 18 connected to the outer casing 6. The second member 18 is preferably fixedly coupled to the outer casing 6 by a binder. There are two second members 18 which form two chutes with the outer casing 6, and the first member 16 is partially located in the chute 17, so that the first member 16 can slide along the chute 17.

As is readily apparent from Figures 6 and 7, the first member 16 is in contact with the inner surface of the outer casing 6, the first member 16 is a curved plate, and the portion of the outer casing 6 that is in contact with the first member 16 is also curved. The first member 16 slides along the sliding slot 17, so that the main body 4 can be relatively slid relative to the inlet portion 3, that is, the main body 4 can be slid from the non-tilted position to the inclined position or from the inclined position to the non-tilted position with respect to the inlet portion 3. Or slide from one tilted position to another.

In the present embodiment, the lower surface of the first member 16 is always in close contact with the inner surface of the outer casing 6 when sliding and non-sliding, so that the airflow can be prevented or reduced from the gap between the first member 16 and the outer casing 6 and Leakage through the opening 40. Preferably, a flexible seal, such as a rubber seal, is provided between the first member 16 and the outer casing 6, which can effectively prevent or reduce leakage of airflow.

In the present embodiment, the main body 4 has an annular outer casing 6 and defines a centrally located through hole 5 located at the front of the main body 4 and arranged to emit an air flow toward the front of the fan, from the exhaust port 7 The emitted airflow is substantially parallel to the direction of the axis X at the exit of the exhaust port 7; the outer casing 6 includes a housing 611, a housing 612, a housing 613, and a plurality of fixing members (not shown), the exhaust port 7 is defined by the opposing surfaces of the housing 611 and the housing 612, the fixture being located in the internal passageway 14. And a certain distance from the outlet of the exhaust port 7, the housing 611, the housing 612 and the fixing member are integrated, that is, integrated. In the present embodiment, the exhaust port 7 is a slit-shaped exhaust port, the width of the exhaust port 7 at the outlet is about 1.8 mm, and the distance between the fixing member and the outlet of the exhaust port 7 is about 5 mm.

Fig. 5 is a schematic view of the base of the fan shown in Fig. 1, and Fig. 9 shows the internal structure of the base. As can be seen from Figures 5 and 9, the base 2 includes a base 10 and a base 8 having a housing 21 with an impeller cover disposed within the outer casing 21 of the base 8.

22. The impeller 23 and the motor 24 that drives the impeller 23 to rotate. The impeller 23 is located within the impeller casing 22, which includes an air inlet 34 and an air outlet 35.

The motor 24 is housed in the motor housing 25. The motor housing 25 includes an upper portion 26 and a lower portion 27, the upper portion

26 is fixed to the lower portion 27 by screws and the motor 24 is fixed therein. The rotating shaft 38 of the motor 24 passes through a hole formed at the bottom portion of the lower portion 27 of the motor housing 25 to allow the impeller 23 to be coupled to the rotating shaft 38. The upper portion 26 of the motor housing 25 further includes a plurality of fixed rods 31 that are secured to the impeller cover 22 by a plurality of fixed rods 31 of the motor housing 25.

In the present embodiment, the impeller 23 and the impeller cover 22 are shaped such that when the impeller 23 and the motor housing 25 are supported by the impeller cover 22, the blade tip of the impeller 23 is in close proximity to the inner surface of the impeller cover 22, but does not contact the inner surface. The impeller 23 is substantially coaxial with the impeller cover 22.

A cable perforation (not shown) is disposed on the impeller cover 22, and a cable perforation (not shown) is also provided on a fixing rod 31 of the motor housing 25, and the cable perforation and fixing on the impeller cover 22 are provided. The cable perforation alignment on the rod 31 allows the cable to pass through to facilitate connection of the cable from the circuit arrangement 37 to the motor 24. In the present embodiment, the motor housing 25, the impeller cover 22 and the impeller 23 are preferably formed of plastic.

A gas collecting cover 32 for collecting the airflow formed by the impeller 23 is further disposed in the outer casing 21. The lower end of the air collecting cover 32 is connected to the motor casing 25. The upper end of the air collecting cover 32 and the outer casing 21 have an output end of the air outlet 39. 33 is connected, and the outlet of the collecting hood 32 is in communication with the intake pipe 15 of the nozzle 1. Preferably, a section of hose, such as a length of rubber tube, is connected between the collector hood 32 and the intake pipe 15, and the use of the hose can attenuate some vibration and noise of the motor and the impeller to the nozzle 1.

The impeller cover 22 is supported by a plurality of support members 29. As can be clearly seen in Figure 9, the support member 29 is a spring element. In the present embodiment, the number of the support members 29 is four, that is, the number of the spring members is four, and the upper end of the spring member is fixed to the bump 30 formed on the outer surface of the impeller cover 22, and the lower end of the spring member is fixed to It is attached to the pedestal 28 connected to the outer casing 21. Since the support member 29 is a spring member, the spring member can effectively absorb some vibration and noise from the motor 24 and the impeller 23, which are otherwise easily transmitted to the outer casing 21 through the impeller cover 22 and amplified.

The base 10 is used to engage the surface on which the fan 100 is located. The base 2 also includes a swing mechanism for swinging the base 8 back and forth relative to the base 10, the swing mechanism including a synchronous motor 36, the operation of which is controlled by the circuit arrangement 37 in response to a user pressing the button 13. The swing range is preferably between 60° and 120°, and the swing mechanism is set to perform 3 per minute. Up to 6 swing cycles. A cable (not shown) for supplying power to the fan extends through a hole formed in the base 10. In the present embodiment, the motor 24 is a DC brushless motor, and the rotational speed of the motor can be changed by the circuit device 37 in response to the user operating the button 12.

In order to operate the fan 100, the user presses the button 11, in response to this operation, the circuit arrangement 37 activates the motor 24 to rotate the impeller 23. The rotation of the impeller 23 causes air to enter the outer casing 21 of the base 2 through the air inlet 9. The air flow formed by the impeller 23 is collected by the air hood 32 and sent to the nozzle 1.

In the nozzle 1, the air flow travels in two in the inner passage 14 of the main body 4. The airflow traveling in the internal passage 14 is emitted by the exhaust port 7, and part of the air around the nozzle is taken up by the airflow emitted from the exhaust port 7, so that the airflow emitted from the exhaust port 7 and the airflow sucked up The combination constitutes the total airflow that is emitted forward from the nozzle 1.

Fig. 10 is a side view showing the fan shown in Fig. 1 tilted forward to a position, and Fig. 11 is a side view showing the fan shown in Fig. 1 tilted rearward to a certain position. As can be seen from Fig. 10 and Fig. 11, the main body 4 is slid or tilted with respect to the inlet portion 3, so that the air outlet direction of the nozzle 1 is changed in a vertical plane to meet the different needs of the user.

Figure 12 shows an alternative construction of the nozzle shown in Figure 7. As is easily seen from Fig. 12, the nozzle of this embodiment is different from the nozzle shown in Fig. 7. In the present embodiment, the main body 4 has no second member 18 connected to the outer casing 6, and the inlet portion 3 further includes a third member 20 located outside the outer casing 6 and connected to the intake pipe 15, wherein the first member 16 There is a gap with the third member 20, and the outer casing 6 is partially located in the gap and is in contact with the third member 20. The nozzle of this configuration also enables the main body 4 to slide or adjust the inclination with respect to the inlet portion 3, so that the direction of the air outlet of the nozzle 1 changes in a vertical plane.

While the embodiments of the present invention, which are presently preferred, are shown and described, it will be apparent to those skilled in the art that various modifications and changes can be made without departing from the scope of the invention as defined by the appended claims.

Claims

Claim

A fan, comprising: a base and a nozzle connected to the base, the nozzle including an inlet portion and a body, the body being slidable from an unslanted position relative to the inlet portion In the inclined position, the inlet portion includes an intake pipe and a first member connected to the intake pipe, the body including an outer casing, an internal passage for receiving a gas flow, an exhaust port for emitting a gas flow, and An opening into which the intake pipe extends, wherein the first member is at least partially located in the outer casing.

2. The fan of claim 1 wherein the first member is in contact with an inner surface of the outer casing.

3. The fan of claim 1 wherein the nozzle further comprises a flexible seal between the first member and the outer casing.

The fan according to any one of claims 1 to 3, wherein the body further comprises a second member located in the outer casing and connected to the outer casing, wherein the second member and the second member The outer casing constitutes a chute, and the first member is partially located in the chute.

The fan according to any one of claims 1 to 3, wherein the inlet portion further includes a third member outside the outer casing and connected to the intake pipe, wherein the first member and the first member There is a gap between the three members, and the outer casing is partially located in the gap and is in contact with the third member.

The fan according to any one of claims 1 to 3, wherein the first member comprises a curved sliding plate having a through hole.

The fan according to any one of claims 1 to 3, wherein the base further comprises a gas pipe, wherein the gas pipe is connected to an intake pipe of the nozzle.

A nozzle for a fan, characterized in that the nozzle includes an inlet portion and a main body, the main body being slidable from an unslanted position to an inclined position with respect to the inlet portion, the inlet portion including an intake pipe and a first member coupled to the intake pipe, the body including an outer casing, an inner passage for receiving a gas flow, an exhaust port for emitting a gas flow, and an opening for allowing the intake pipe to extend therein, wherein At least a portion of the first member is located within the outer casing.

9. The nozzle of claim 8, wherein the first member is in contact with an inner surface of the outer casing.

The nozzle according to any one of claims 8 to 9, wherein the body further comprises a second member located in the outer casing and connected to the outer casing, wherein the second member and the second member The outer casing constitutes a chute, and the first member is partially located in the chute.