TW201816274A - A fan - Google Patents

Abstract

The present invention relates to a fan comprising: a base, base comprising: a plurality of internal fans; an air inlet of base; and an air outlet of base; and a nozzle, nozzle mounted on a base, nozzle comprising: an air inlet of nozzle; an interior air passage; an air outlet of nozzle; and a Coanda surface, to generate Coanda effect.

Description

 Fan  

This case is about a fan, especially a bladeless fan with low noise.

Generally, the bladeless fan has too much noise. If the wind speed is low, the noise is small. Once the speed is increased, the power consumption will increase by about double. Although it can increase the wind speed by about twice, it will increase the noise of about 10dba. , such high wind speed, high noise, need to be resolved.

The main purpose of this case is to provide a bladeless fan with low noise, in which a plurality of internal fans, such as two internal fans, have low wind speed, Bernoulli's principle, same nozzle outlet, and two internal fans at the same time. Double the power consumption will double the wind speed, but it will only double the noise of 3dba. It will solve the general fanless fan. If the wind speed is low, the noise will be small. Approximately double the increase, although it can increase the wind speed by about one time, but it will increase the noise of about 10dba.

In order to achieve the above purpose, the fan of the present invention is embodied in a broader manner, and includes: a base having: a plurality of internal fans, using an AC to DC voltage converter as a power source or a battery as a power source for drawing airflow and ejecting a gas flow inlet; an inlet for the suction airflow; and a base airflow outlet for the outlet of the discharge airflow; and a nozzle mounted on the base, the nozzle being linear in front view, having a nozzle air flow inlet, located in the nozzle, is an opening for receiving the jet airflow of the base; a nozzle internal air flow passage for airflow; a nozzle airflow outlet, located at the nozzle, is an opening for ejecting the airflow; a Coanda surface, close to the nozzle airflow outlet for generating a Coanda effect to increase the overall flow of the final output airflow; and a diffusing surface formed by the Coanda surface (for guiding the Coanda surface) The airflow is in its direction.

In order to achieve the above purpose, another broad implementation of the fan of the present invention includes: a pedestal having a plurality of internal fans, using an AC to DC voltage converter as a power source or a battery as a power source for drawing in airflow and a jet stream; a pedestal inlet for use as an inlet for the suction stream; and a pedestal outlet for exiting the vent stream; and a nozzle mounted on the susceptor, the nozzle being annular and centrally facing Most of the area is hollow and can be circulated by light and airflow to amplify the input airflow range. It has a nozzle airflow inlet at the nozzle and an opening; a nozzle internal airflow passage for airflow; a nozzle airflow The outlet, located at the nozzle, is an opening for ejecting airflow for receiving the jet stream of the susceptor; a Coanda surface, close to the nozzle airflow outlet for generating a Coanda effect to increase the final output The overall flow of the airflow; and a diffusing surface formed by the end of the Coanda surface to direct the airflow in its direction.

10, 13, 16, 19‧‧‧ fans

11, 14, 17, 20‧‧ ‧ pedestal

12, 15, 18, 21‧ ‧ nozzle

110a-110b, 140a-140b, 170a-170b, 200a-200b‧‧‧ a plurality of internal fans

111a-111b, 141a-141b, 171a-171b, 201a-201b‧‧‧ a plurality of pedestal airflow inlets

112a-112b, 142a-142b, 172a-172b, 202a-202b‧‧‧ a plurality of pedestal airflow exits

113‧‧‧Blowing fan

114‧‧‧Blow fan air outlet

115‧‧‧Blow fan air inlet

116‧‧‧Blow fan blades

117‧‧‧Blow fan motor

121, 151, 181, 211‧‧ ‧ nozzle air inlet

122, 152, 182, 212‧‧‧ nozzle air outlet

123, 153, 183, 213‧‧‧ nozzle internal air passage

124, 154, 184, 214‧‧‧ Coanda surface

125, 155, 185, 215‧‧ ‧ diffusion surface

143‧‧‧Spray turbine blade guide fan

144‧‧‧Spray turbine blade guide fan air outlet

145‧‧‧Spray turbine blade guide fan air inlet

146‧‧‧Spray turbine blade guide vane blades

147‧‧‧Spray turbine blade guide fan motor

173‧‧‧Flat fan

174‧‧‧Flat fan air outlet

175‧‧‧Flat fan air inlet

176‧‧‧Flat fan blades

177‧‧‧Flat fan motor

301‧‧‧Battery

302, 303, 304‧‧‧ AC to DC voltage converter

Fig. 1 is a schematic view showing an embodiment of a linear nozzle when the fan is facing the front view.

Figure 2 is a schematic view of an embodiment of a blower fan inside the fan of the present invention.

Figure 3 is a schematic view of the front side of the annular hollow nozzle embodiment when the fan is facing the front view.

Fig. 4 is a schematic view showing an embodiment of a jet type turbine blade guide fan inside the fan of the present invention.

Fig. 5 is a schematic view showing an embodiment of a linear nozzle when the other fan is facing the front view.

Figure 6 is a schematic view of an embodiment of a planar fan inside the fan of the present invention.

Figure 7 is a schematic view of the front side of the annular hollow nozzle embodiment when the other fan is facing the front view.

In one aspect, please refer to FIG. 1 . FIG. 1 is a schematic view of a linear nozzle embodiment when the fan is facing the front view. As shown in FIG. 1 , a fan 10 includes: a base 11 having a plurality of internal portions. The fans 110a-110b use a battery 301 as a power source for drawing in airflow and jetting airflow; a plurality of pedestal airflow inlets 111a-111b for use as inlets for intake airflow; and a plurality of pedestal airflow outlets 112a-112b for use As the outlet of the jet stream; and a nozzle 12, the nozzle 12 is mounted on the base 11, the nozzle 12 is linear in front view, and has a nozzle air inlet 121 located at the nozzle 12 as an opening for receiving the plurality a nozzle airflow outlet 112a-112b discharge airflow; a nozzle internal airflow passage 123 for airflow; a nozzle airflow outlet 122, located in the nozzle 12, is an opening for ejecting airflow; a Coanda surface 124, which is adjacent to the nozzle airflow outlet 122 for generating a Coanda effect, increasing the overall flow of the final output airflow, and a diffusing surface 125 for directing the airflow in its direction of guidance.

Fig. 2 is a schematic view showing an embodiment of a blower fan inside the fan of the present invention. As shown in Fig. 2, the blower fan 113 represents a plurality of internal fans 110a-110b in Fig. 1, wherein an internal fan 110a is used for sucking airflow and ejecting airflow. It has a blower fan airflow outlet 114; a blower fan airflow inlet 115; a blower fan blade 116; and a blower fan motor 117.

In another aspect, please refer to FIG. 3, which is a schematic view of the front side of the annular hollow nozzle embodiment when the fan is facing the front view. As shown in FIG. 3, a fan 13 includes: a base 14 having: a plurality of internal fans 140a-140b, using an AC to DC voltage converter 302 as a power source for drawing in and out of the air stream; a plurality of base airflow inlets 141a-141b for accessing the intake air stream; and a plurality of bases The air outlets 142a-142b are used as outlets for the discharge airflow; and a nozzle 15 is mounted on the base 14. The nozzle 15 is annular in front view, and most of the central area is hollow, which can be circulated by light and airflow. For expanding the input airflow range, having: a nozzle airflow inlet 151, an opening for receiving the plurality of pedestal airflow outlets 142a-142b, and a nozzle internal airflow passage 153 for airflow; A nozzle air outlet 152, located at the nozzle 15, is an opening for ejecting airflow; a Coanda surface 154 is adjacent to the nozzle air outlet 152 for generating a Coanda effect (Coanda effe) Ct), increasing the overall flow of the final output airflow; and a diffusing surface 155 for directing the airflow in its direction of guidance.

4 is a schematic view of an embodiment of a jet turbine blade guide fan inside the fan of the present invention. As shown in FIG. 4, the jet turbine blade guide fan 143 represents a plurality of internal fans 140a-140b in FIG. 3, one of which is an internal fan 140a. a suction air flow and a discharge air flow having: a jet turbine vane fan airflow outlet 144; a jet turbine vane fan airflow inlet 145; a jet turbine vane fan blade 146; and a jet turbine vane guide Fan motor 147.

In another aspect, please refer to FIG. 5 , which is a schematic diagram of a linear nozzle embodiment in the case of another fan in the front view. As shown in FIG. 5 , a fan 16 includes: a base 17 having: a plurality of internal fans 170a-170b, using an AC to DC voltage converter 303 as a power source for drawing in and out of the air stream; a plurality of base airflow inlets 171a-171b for accessing the intake air stream; and a plurality of bases The air outlets 172a-172b are used as outlets for the discharge airflow; and a nozzle 18 is mounted on the base 11, the nozzle 18 being linear in front view, having a nozzle airflow inlet 181 located at the nozzle 18, An opening for receiving the plurality of pedestal airflow outlets 172a-172b; a nozzle internal airflow passage 183 for airflow; and a nozzle airflow outlet 182 at the nozzle 18 for opening the airflow a Coanda surface 184 that is adjacent to the nozzle airflow outlet 182 for generating a Coanda effect, increasing the overall flow of the final output airflow; and a diffusing surface 185 for guiding Guide the direction of its flow.

Fig. 6 is a schematic view showing an embodiment of a plane fan inside the fan of the present invention. It can be seen from Fig. 6 that the plane fan 173 represents a plurality of internal fans 170a-170b in Fig. 5, wherein an internal fan 170a is used for sucking airflow and ejecting airflow. It has: a planar fan airflow outlet 174; a planar fan airflow inlet 175; a planar fan blade 176; and a planar fan motor 177.

In another aspect, please refer to FIG. 7. FIG. 7 is a schematic view showing the front side of the annular hollow nozzle embodiment when the other fan is facing the front view. FIG. 7 shows a fan 19 including: a base 20; Having: a plurality of internal fans 200a-200b, using an AC to DC voltage converter 304 as a power source for drawing inflow and ejecting airflow; a plurality of pedestal airflow inlets 201a-201b for use as inlets for intake airflow; The pedestal airflow outlets 202a-202b are used as the outlets for the discharge airflow; and a nozzle 21 is mounted on the susceptor 20, and the plurality of nozzles 21 are annular in front view, and most of the central area is hollow and can pass Light and airflow for amplifying the input airflow range, having: a nozzle airflow inlet 211, an opening for receiving the plurality of pedestal airflow outlets 202a-202b, and a nozzle internal airflow passage 213 for Air flow through; a nozzle air outlet 212, located in the nozzle 21, is an opening for ejecting air flow; a Coanda surface 214, close to the nozzle air outlet 212 for generating Coanda effect (Coanda effect), the final output stream to increase the overall flow rate; and a diffusion surface 215 for guiding the airflow to guide the direction thereof.

In this case, a small noiseless bladeless fan, in which a plurality of internal fans, such as two internal fans, have low wind speed, Bernoulli's principle, the same nozzle outlet, and two internal fans, increasing power consumption. Double, it will double the wind speed, but it will only double the noise, which is 3dba noise. It solves the general bladeless fan. If the wind speed is low, the noise will be small. Once the speed is increased, the power consumption will increase by about double. Although it can increase the wind speed by about one time, it will increase the noise of about 10dba. It is because the fan of this case has great industrial value and is applied according to law.

This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.

Claims (14)

 A fan for accelerating airflow, comprising: a base for ejecting airflow, comprising: a plurality of internal fans; a pedestal airflow inlet; and a pedestal airflow outlet; and a nozzle mounted on the nozzle The pedestal includes: a nozzle airflow inlet, an opening for receiving the blasting airflow of the pedestal; a nozzle internal airflow passage for airflow; and a nozzle airflow outlet for an opening for ejecting Airflow; and a Coanda surface approaching the nozzle airflow outlet for creating a Coanda effect.    The fan according to claim 1, wherein the plurality of internal fans are a plurality of blowers.    The fan of claim 1, wherein the plurality of internal fans are a plurality of jet turbine blade guide fans.    The fan according to claim 1, wherein the plurality of internal fans are a plurality of planar fans.    The fan according to claim 1, wherein the base airflow inlet may be one or plural.    The fan according to claim 1, wherein the base airflow outlet may be one or plural.    The fan according to claim 1, wherein the nozzle airflow inlet may be one or plural.    The fan according to claim 1, wherein the nozzle air outlet is partitioned into a plurality of spaces.    The fan according to claim 1, wherein the nozzle is linear in front view.    The fan according to claim 1, wherein the nozzle is annularly hollow in front view, and the hollow portion is permeable to light and air.    The fan according to claim 1, wherein the end of the Coanda surface forms a diffusing surface for guiding the airflow in the guiding direction thereof.    The fan according to claim 1, wherein the nozzles may be one or plural.    The fan according to claim 1, wherein the plurality of internal fans use an AC to DC voltage converter as a power source.    The fan of claim 1, wherein the plurality of internal fans use a battery as a power source.