TW201925629A - Airflow generating apparatus - Google Patents

Abstract

An airflow generating apparatus includes a fan shell, a fan blade body, and a supporting pillar, and a punch. The fan shell includes a first plate, a second plate, and a side plate. The first plate and the second plate is connected to two opposite sides of the side plate. The side plate has a tongue portion. The tongue portion has a first arc part and a second arc part. The first arc part is connected to the second arc part to form an edge. Two opposite sides of the supporting pillar are connected to the first plate and the second plate. The punch is protruded to the second plate. Wherein, the supporting pillar is located on a side, near an air outlet, of a baseline which is penetrated to the edge and the fan blade body. The punch is located on a line which is penetrated to the supporting pillar and the rotation axis of the fan blade body, and is located between the edge of the air inlet and the supporting pillar.

Description

Airflow generating device

The present invention relates to an airflow generating device, and more particularly to an airflow generating device having a support column and a compression resistant structure.

In general, electronic components in electronic devices are accompanied by heat generation during operation. In order to prevent the electronic device from failing due to excessive temperature, the temperature of the electronic component during operation is often maintained by the fan to maintain a suitable operating range. With the advancement and development of technology, the design direction of various electronic devices is oriented toward a light and short design concept. Taking a notebook computer as an example, the fan is limited by the space of the notebook computer and the demand for suction is generally Close to the case of the notebook.

However, when the user holds the notebook computer, the hand may be pressed to the housing of the notebook computer, so that the housing is deformed and pressed against the fan that is in close contact with the housing, forcing the deformation of the outer casing of the fan to interfere with the interior of the fan. The rotation of the blade is smooth. In this way, the fan that is subject to interference will not only emit noise, but also the smooth rotation will reduce the heat dissipation capability of the fan.

SUMMARY OF THE INVENTION The present invention is directed to an airflow generating apparatus for solving the problem of insufficient pressure resistance of a fan in the prior art.

An airflow generating device according to an embodiment of the present invention is suitable for being disposed in a casing of an electronic device and having an air inlet. The airflow generating device comprises a fan casing, a blade body, a first supporting column and a first pressure-resistant structure. The fan casing includes a first plate body, a second plate body and an annular wall. The second plate body has an air inlet for corresponding to the air inlet in the casing of the electronic device. The second plate body and the first plate body are respectively connected to opposite sides of the annular wall to form a receiving space and an air outlet, and the air inlet communicates with the receiving space and the opening, and the annular wall has a connected ring. The air guiding section and the tongue opening section have a first curved portion and a second curved portion, and the first curved portion and the second curved portion are connected to form one end edge. The blade body is disposed in the accommodating space and is rotatable relative to the fan casing with a rotation axis. The first support column is disposed in the accommodating space, and the opposite ends of the first support column are respectively connected to the first plate body and the second plate body. The first pressure-resistant structure protrudes from the side of the second plate body away from the accommodating space. Wherein, a reference line is defined through the end edge and the rotation axis, the first support column is located on a side of the reference line adjacent to the air outlet, and the first pressure-resistant structure is located on the line connecting the first support column and the rotation axis, and is located Between the edge of the air inlet and the first support column

According to the airflow generating device disclosed in the above embodiment, the first supporting column is disposed on a side of the air outlet opening through a reference line passing through the end edge and the rotation axis of the blade body, and the first pressure-resistant structure is disposed on The first support column is connected to the axis of rotation and is disposed between the edge of the air inlet and the first support column to enhance the structural strength of the fan casing to ensure that the fan casing is not pressed by the casing of the electronic device. It will interfere with the rotation of the blade body, and can maintain the smooth running of the fan and good heat dissipation.

In addition, the first pressure-resistant structure is disposed between the edge of the air inlet and the first support column, so that in the limited space of the electronic device, the edge of the air inlet of the fan is not blocked by the first pressure-resistant structure, so that the fan In addition to having good compressive strength, it also reduces the problem of airflow confusion near the air inlet and the formation of noise and poor suction capability.

The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the principles of the invention, and to provide a further explanation of the scope of the invention.

Please refer to FIG. 1. FIG. 1 is a perspective view of an airflow generating device according to a first embodiment of the present invention.

The airflow generating device 10 of the present embodiment is adapted to be disposed in a casing 12 of an electronic device 11 and the casing 12 has an air inlet 13 such as a notebook computer.

Please refer to FIG. 2 to FIG. 4. FIG. 2 is a perspective view of the airflow generating device of FIG. 1. Figure 3 is a plan view of Figure 2. Figure 4 is a front elevational view of Figure 2.

The airflow generating device 10 includes a fan casing 100, a blade body 200, a first support column 300, and a first pressure-resistant structure 400.

The fan casing 100 includes a first plate body 110, a second plate body 120, and an annular wall body 130. The second plate body 120 has an air inlet 121 for receiving the air inlet 13 in the casing 12 of the electronic device 11. The second plate body 120 and the first plate body 110 are respectively connected to the opposite sides of the annular wall body 130 to form an accommodating space 140 and an air outlet 150, and the air inlet 121 communicates with the accommodating space 140 and the air outlet. The annular wall 130 has a ring-shaped air guiding section 131 and a tongue-and-groove section 132. The tongue-port section 132 has a first curved portion 1321 and a second curved portion 1322, and the first curved portion 1321 and The second curved portions 1322 are joined to form an end edge 1323. The blade body 200 is disposed in the accommodating space 140 and is rotatable relative to the fan casing 100 by a rotation axis S.

The first support column 300 is disposed in the accommodating space 140 , and the opposite ends of the first support column 300 are respectively connected to the first plate body 110 and the second plate body 120 . The first pressure-resistant structure 400 protrudes from the side of the second plate body 120 away from the accommodating space 140. Wherein, a reference line P is defined through the end edge 1323 and the rotation axis S. The first support column 300 is located on a side of the reference line P adjacent to the air outlet 150, and the first pressure-resistant structure 400 is located at the first support column 300 and rotated. The line L1 of the axis S is located between the edge of the air inlet 121 and the first support column 300.

The airflow generating device 10 further includes a second support column 500 and a second pressure-resistant structure 600. The opposite ends of the second support column 500 are respectively connected to the first plate body 110 and the second plate body 120 and located in the accommodating space 140, and the second support column 500 is located on the side of the reference line P adjacent to the air outlet 150 and The first support column 300 is located on a different side of the air outlet 150. The second pressure-resistant structure 600 protrudes from the side of the second plate body 120 away from the accommodating space 140, and the second pressure-resistant structure 600 is located on the line L2 of the second support column 500 and the rotation axis S, and is located at the air inlet. The edge of 121 is between the second support column 500.

In the present embodiment, the first pressure-resistant structure 400 is located on the line L1 of the first support column 300 and the rotation axis S, and the second pressure-resistant structure 600 is located on the line L2 of the second support column 500 and the rotation axis S. The arrangement of the fan casing 100 is sufficient to prevent the deformation of the casing 12 of the electronic device 11 from affecting the rotation of the blade body 200, so that the airflow generating device 10 does not generate noise when operating, and can maintain good heat dissipation capability.

In the present embodiment, the number of the support columns and the pressure-resistant structure on the side of the reference line P adjacent to the air outlet 150 is two, which is not intended to limit the present invention. In other embodiments, the number of support columns and compression resistant structures on the side of the reference line adjacent the air outlet can be adjusted to one.

The first pressure-resistant structure 400 is located on the line L1 of the first support column 300 and the rotation axis S, and the second pressure-resistant structure 600 is disposed on the line L2 of the second support column 500 and the rotation axis S, and is not used for The invention is defined. In other embodiments, the first pressure-resistant structure may be offset within 5 degrees of the line connecting the first support column and the rotation axis, and the second pressure-resistant structure may be offset within 5 degrees of the connection line between the second support column and the rotation axis. . That is, the angle between the line connecting the first pressure-resistant structure and the rotation axis and the line connecting the first support column and the rotation axis is less than 5 degrees, and the connection between the second pressure-resistant structure and the rotation axis and the second support column and the rotation axis The angle of the connection is less than 5 degrees.

In addition, the distance between the first support post 300 and the second support post 500 and the outer edge of the rotation of the blade body 200 is, for example, greater than 8 mm to ensure that the airflow in the fan casing 100 does not flow when the blade body 200 rotates. It is interfered by the first support column 300 and the second support column 500 so that the airflow can be smoothly blown out.

The airflow generating device 10 further includes a third pressure-resistant structure 700 and a fourth pressure-resistant structure 800. The third pressure-resistant structure 700 and the fourth pressure-resistant structure 800 are both protruded from the side of the second plate body 120 away from the accommodating space 140, and the third pressure-resistant structure 700 and the fourth pressure-resistant structure 800 are both located on the reference line P. Up and separated from the edge of the air inlet 121. The fourth pressure-resistant structure 800 and the third pressure-resistant structure 700 are respectively located on opposite sides of the air inlet 121.

In the present embodiment, the third pressure-resistant structure 700 and the fourth pressure-resistant structure 800 are both disposed on the reference line P, and are not intended to limit the present invention. In other embodiments, the third pressure-resistant structure and the fourth pressure-resistant structure may each be within 5 degrees of the reference line. That is, the angle between the line connecting the third compression structure and the rotation axis and the reference line is within 5 degrees, and the angle between the line connecting the fourth compression structure and the rotation axis and the reference line is at 5 degrees. Within.

The airflow generating device 10 further includes a fifth pressure-resistant structure 900 and a sixth pressure-resistant structure 1000. The fifth pressure-resistant structure 900 and the sixth pressure-resistant structure 1000 are both protruded from the side of the second plate body 120 away from the accommodating space 140 and separated from the edge of the air inlet 121, and the fifth pressure-resistant structure 900 and the sixth resistance The pressing structure 1000 is located on the side of the reference line P away from the air outlet 150. The fifth pressure-resistant structure 900 and the sixth pressure-resistant structure 1000 are evenly dispersed on a side of the reference line P away from the air outlet 150. That is to say, the lines L3 and L4 of the fifth compression-resistant structure 900 and the sixth compression-resistant structure 1000, which are located on the side of the reference line P away from the air outlet 150, respectively, are equally divided into three equalities by 180 degrees. Angles θ1, θ2, θ3.

The closer the pressure-resistant structure is to the edge of the air inlet 121 of the fan casing 100, the better the ability of the fan casing 100 to withstand pressure, but it is still necessary to keep a distance from the edge of the air inlet 121 to ensure smooth airflow. The tuyeres 121 enter the fan casing 100 to reduce the confusion of airflow near the air inlet 121 to form noise and poor suction capability.

In the present embodiment, the fifth compression-resistant structure 900 and the sixth compression-resistant structure 1000 located on the side of the reference line P away from the air outlet 150 are connected to the rotation axis S by L3, L4 and are equally divided into three equalities by 180 degrees. The arrangement of the included angles θ1, θ2, θ3 is not intended to limit the present invention. In other embodiments, the line connecting the fifth compression-resistant structure and the sixth compression-resistant structure to the rotation axis may have a difference between three angles divided by 180 degrees within 5 degrees.

Further, in the present embodiment, the number of the pressure-resistant structures located on the side of the reference line P away from the air outlet 150 is two, but is not intended to limit the present invention. In other embodiments, the number of compression-resistant structures on the side of the reference line away from the air outlet can be adjusted to be less than two or more than two.

As shown in FIG. 4, the airflow generating device 10 further includes a plurality of pressure-resistant ribs 1100 protruding from one side of the annular wall 130 away from the first plate body 110 and protruding from the second plate. Body 120.

All of the foregoing pressure-resistant structures protrude from the height of the second plate body 120, for example, are equal. Taking the first pressure-resistant structure 400 as an example, the pressure-resistant ribs 1100 protrude from the height H1 of the second plate body 120 is greater than or equal to the height H2 of the first pressure-resistant structure 400 protruding from the second plate body 120. Further, the width W of these pressure-resistant ribs 1100 is, for example, less than 3 mm, and the number of these pressure-resistant ribs 1100 is, for example, less than eight.

The heights H1 of the pressure-resistant ribs 1100 protruding from the second plate body 120 are greater than the heights of all the pressure-resistant structures protruding from the second plate body 120, so that when the casing 12 of the electronic device 11 is concavely deformed, these The compression rib 1100 first resists the recessed casing 12 to attenuate the extent to which the recessed casing 12 interferes with the rotation of the blade body 200. In addition, for the limitation of the width W and the number of the pressure ribs 1100, it is ensured that the air inlet 121 (shown in FIG. 2) still has the pressure rib 1100 provided with the pressure resistance. The space allows air to be drawn in to maintain the heat dissipation capability of the airflow generating device 10.

According to the motherboard assembly disclosed in the above embodiments, the structural strength of the fan casing can be increased by the arrangement of the compression-resistant structure on the line connecting the support column and the rotation axis to ensure that the fan casing is received by the casing of the electronic device. The pressure does not interfere with the rotation of the blade body, but maintains the smoothness of the fan operation and good heat dissipation.

In addition, through the anti-pressure structure on the reference line and the anti-pressure structure on the side of the reference line away from the air outlet, the structural strength of the fan casing can be increased, thereby improving the resistance of the fan casing against the deformation of the electronic device casing. Ability.

Furthermore, the plurality of pressure-resistant ribs protrude from the second plate body in comparison with the pressure-resistant structure, so that the pressure-resistant ribs can first resist the recessed casing to weaken the interference of the recessed casing. The degree of rotation of the body.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

10‧‧‧Airflow generating device

11‧‧‧Electronic devices

12‧‧‧Shell

13‧‧‧air inlet

100‧‧‧Fan casing

110‧‧‧ first board

120‧‧‧Second plate

121‧‧‧Air inlet

130‧‧‧Circular wall

131‧‧‧Circular wind guide

132‧‧‧ tongue section

1321‧‧‧First curved part

1322‧‧‧Second curved part

1323‧‧‧ edge

140‧‧‧ accommodating space

150‧‧‧air outlet

200‧‧‧ fan blade body

300‧‧‧First support column

400‧‧‧First compression structure

500‧‧‧second support column

600‧‧‧second compression structure

700‧‧‧ Third compression structure

800‧‧‧fourth compression structure

900‧‧‧Fixed compression structure

1000‧‧‧ sixth compression structure

1100‧‧‧Compressive ribs

S‧‧‧ axis

P‧‧‧ baseline

L1, L2, L3, L4‧‧‧ connection

H1, H2‧‧‧ height

W‧‧‧Width

Θ1, θ2, θ3‧‧‧ angle

1 is a perspective view of an airflow generating device according to a first embodiment of the present invention, which is located in an electronic device. Figure 2 is a perspective view of the airflow generating device of Figure 1. Figure 3 is a plan view of Figure 2. Figure 4 is a front elevational view of Figure 2.

Claims (10)

An airflow generating device is disposed in a casing of an electronic device, and the casing has an air inlet, comprising: a fan casing, comprising: a first plate body; and a second plate body having an inlet a tuyere for the air inlet in the casing corresponding to the electronic device; and an annular wall, the second plate body and the first plate body are respectively connected to opposite sides of the annular wall body to form a connection a accommodating space and an air outlet, wherein the air inlet communicates with the accommodating space and the air outlet, the annular wall has a connected annular wind guiding section and a tongue opening section, and the tongue opening section has a first An arc-shaped portion and a second curved portion, the first curved portion and the second curved portion are connected to form an end edge; a blade body is disposed in the receiving space and can be opposite to an axis of rotation The first outer support column is disposed in the accommodating space, and the opposite ends of the first support column are respectively connected to the first plate body and the second plate body; and a first compression resistance a structure protruding from the side of the second plate body away from the accommodating space; Defining a reference line passing through the end edge and the rotation axis, the first support column is located on a side of the reference line adjacent to the air outlet, and the first pressure-resistant structure is located at the first support column and the rotation axis The line is located between the edge of the air inlet and the first support column. The airflow generating device of claim 1, further comprising a second support column and a second pressure-resistant structure, wherein the opposite ends of the second support column are respectively connected to the first plate body and the second a plate body is located in the accommodating space, and the second support column is located on a side of the reference line adjacent to the air outlet and on a different side of the air outlet from the first support column, the second pressure-resistant structure is convex The second plate body is located away from the side of the accommodating space, and the second pressure-resistant structure is located on the line connecting the second support column and the rotation axis, and is located at the edge of the air inlet and the second support Between the columns. The airflow generating device of claim 2, further comprising a third pressure-resistant structure protruding from a side of the second plate body away from the accommodating space, and the first The pressure-resistant structure, the second pressure-resistant structure and the third pressure-resistant structure are located at different points of the second plate body, and the third pressure-resistant structure is located on the reference line and separated from the edge of the air inlet. The airflow generating device of claim 3, further comprising a fourth anti-pressure structure protruding from a side of the second plate body away from the accommodating space, the fourth anti- The pressing structure is located on the reference line and is separated from the edge of the air inlet, and the fourth pressure-resistant structure and the third pressure-resistant structure are respectively located on opposite sides of the air inlet. The airflow generating device of claim 4, further comprising a fifth pressure-resistant structure protruding from a side of the second plate body away from the accommodating space and the air inlet The edge is separated, and the fifth pressure-resistant structure is located on a side of the reference line away from the air outlet. The airflow generating device of claim 5, further comprising at least one sixth compression-resistant structure, the at least one sixth compression-resistant structure protruding from a side of the second plate body away from the accommodating space and The edge of the air inlet is separated, and the at least one sixth pressure-resistant structure and the fifth pressure-resistant structure are evenly dispersed on a side of the reference line away from the air outlet. The airflow generating device of claim 1, further comprising a plurality of pressure-resistant ribs protruding from a side of the annular wall away from the first plate and protruding therefrom The second plate. The airflow generating device of claim 7, wherein the pressure ribs have a width of less than 3 mm. The airflow generating device of claim 7, wherein the number of the compression ribs is less than eight. The airflow generating device of claim 7, wherein the pressure-resistant ribs protrude from the second plate body by a height greater than or equal to a height of the first pressure-resistant structure protruding from the second plate body. .