TW201903290A - Fan and its fan frame - Google Patents

Abstract

A fan and frame is disclosed for reducing frame material and decreasing the cost of manufacturing. The frame includes an external ring which comprises an inner ring surface and first connecting sections; an interior ring which comprises an outward ring surface and second connecting sections which connects to first connecting sections, causing the outward ring surface of interior ring and inner ring surface of external ring may shape a through sections; a basement containing a axis base and connecting parts, the tip of each connecting parts may connects with external ring or interior ring.

Description

   Fan and fan frame   

The invention relates to a fan and a fan frame thereof. In particular, the fan frame can reduce the material of the fan frame and the manufacturing cost of the fan frame.

Please refer to FIG. 1, which is a conventional fan frame 8. An air duct 81 is provided on a frame 80. A base 82 is provided on the bottom end of the frame 80. A frame is combined with a rotor for pivoting. The frame 80 has a plurality of positioning holes 83. The positioning holes 83 are provided for positioning elements to pass through, so that the fan frame 8 can be combined with a heating component, and the heating source of the heating component. For cooling.

In the conventional fan frame 8, in order to achieve a single mold capable of forming a fan frame 8 with multiple cavities at the same time, according to the opening and closing directions of the mold, only the mold core for forming the fan frame 8 can be set in the axial direction of the fan frame 8. So that the fan frame 8 can form the above-mentioned air duct 81, base 82, and positioning hole 83 from the axial direction, and the radial direction of the frame 80 cannot form other holes and shapes in the manner of a slider. Only one mold can be used to form several fan frames 8 at the same time with a single mold. Therefore, although the manufacturing cost of the fan frame 8 can be reduced, the fan frame 8 needs to be used. The larger the number of materials, the greater the manufacturing material of the fan frame 8. In addition, the four corners of the frame 80 are formed to have a large thickness, so a long cooling time is required when molding the frame 80, and the outer surface of the frame 80 after cooling is easy to form shrinkage depressions. The appearance is not good, or the frame 80 is eliminated as a defective product.

Please refer to FIG. 2, which is another conventional fan frame 9. The frame 90 can form an air duct 91, a base 92 and a positioning hole 93 in the axial direction. The frame 90 In the radial direction, a hole 94 is formed in the manner of a slider. In this way, less material is required to manufacture the fan frame 9. However, the mold for molding the fan frame 9 is not only provided with a mold core for molding the air duct 91, the base 92 and the positioning hole 93 in the axial direction of the fan frame 9, but also another two perpendicular to the opening and closing direction of the mold. In the direction, a slider that can be slid is required, and the slider can drive the mold core forming the hole 94 to move. After the mold is closed, the slider drives the mold core into the mold cavity to form the cavity 94. After the fan frame 9 is cooled and formed, the slider first drives the mold core to exit the mold cavity, and then opens the mold to take out Finished product.

Therefore, the mold for forming the fan frame 9 can usually only be provided with a cavity in the mold, and the mold can only form one fan frame 9 each time the mold is opened and closed. In this way, although less material is required, but The manufacturing speed of the fan frame 9 will be slowed down, and the manufacturing cost of the fan frame 9 will increase.

In order to solve the above problems, an object of the present invention is to provide a fan frame, in which the material of the fan frame can be greatly reduced, so that the material cost of the fan frame can be reduced.

A secondary object of the present invention is to provide a fan frame, which can reduce the thickness of the fan frame, so that the cooling time for manufacturing the fan frame can be reduced, the fan frame has a better appearance, and the fan frame can be reduced. Cost of manufacturing.

Another object of the present invention is to provide a fan frame, which is provided in a single mold for forming the fan frame. Several molding cavities can be set so that the mold can simultaneously form several fan frames each time the mold is opened and closed. In order to reduce the manufacturing cost of the fan frame.

Another object of the present invention is to provide a fan having a fan frame using the above effects.

The directionality or its approximate terms in the present invention, such as "upper (top)", "lower (bottom)", "inside", "outside", "side", etc., are mainly referred to the directions of the attached drawings, and each direction Sexuality or its approximate terms are only used to assist in explaining and understanding the embodiments of the present invention, and are not intended to limit the present invention.

The fan frame of the present invention includes: an outer ring body having an inner wall surface and a plurality of first connecting portions; an inner ring body having an outer wall surface and a plurality of second connecting portions The plurality of second connecting portions are connected to the plurality of first connecting portions so that a plurality of hollow portions are formed between the outer wall surface of the inner ring body and the inner wall surface of the outer ring body; and a base having a shaft seat And a plurality of connecting members, one end of each of the connecting members is connected to the outer ring body or the inner ring body.

The fan of the present invention is provided with the above-mentioned fan frame, and further comprises: a driving member and a rotor, the driving member is coupled to the base, and the rotor is movably pivotally connected to the shaft seat of the base by a rotating shaft, The rotor has several blades.

Accordingly, since the radial cross-sectional shapes of the inner ring body and the outer ring body of the fan and the fan frame of the present invention can be different, so that several hollow portions can be formed between the inner ring body and the outer ring body, In this way, the fan frame system of the present invention can greatly reduce the use of materials, and there is no problem that the fan frame is difficult to be formed due to the excessive thickness of the material and the external depression after the finished product is cooled. Thus, the fan frame of the present invention will have a better appearance. Furthermore, since the outer ring body, the inner ring body, and the base only have an axial structure or a through hole, the outer ring body, the inner ring body, and the base can be integrated in a mold with multiple cavities. Several fan frames are manufactured by molding. In this way, the manufacturing cost and man-hours of the fan and the fan frame can be greatly reduced, and the effects such as improving process efficiency can be achieved.

The second connection portion and the first connection portion form a tangent connection. In this way, the fan frame can use less material and has the effect of reducing manufacturing costs.

The second connection portion and the first connection portion form a partially overlapping connection. In this way, the fan frame has a relatively thin thickness and can reduce the cost of materials.

The outer ring body has a plurality of positioning holes. In this way, the fan frame has the effect of easily assembling a to-be-radiated member.

Each of the positioning holes is a through hole of a pipe body. In this way, the fan frame has the effect that it is easy to assemble a heat sink to be assembled.

The outer ring body has a first axial height, and the length of the pipe body is equal to or shorter than the first axial height of the outer ring body. In this way, the fan frame has the effect of easily assembling a to-be-radiated member.

The outer ring body has an outer wall surface, and the pipe body is formed on the inner wall surface or the outer wall surface of the outer ring body. In this way, the fan frame has the effect of easily assembling a to-be-radiated member.

Wherein, a notch portion and a notch are provided on a wall surface of the outer ring body, the notch portion runs through the inner wall surface and the outer wall surface, the notch is connected to the notch portion in a radial extension, and the notch communicates with the notch portion. An axial end surface of the wall surface of the outer ring body. In this way, the lead wire of the fan frame can be drawn out from the notch and the notch, so that the lead has a better positioning effect.

Wherein, the outer ring body is provided with two connecting plates at the notch, one end of the two connecting plates is connected to the outer ring body, and the other end of the two connecting plates is connected to the inner ring body. In this way, the connection between the inner ring body and the outer ring body has a relatively strong joining effect.

The outer ring body has a first axial height, the inner ring body has a second axial height, and the second axial height is equal to or less than the first axial height. In this way, the inner ring system does not protrude from the outer ring body, so that the fan frame has a better appearance effect.

Wherein, the inner ring body has an inner wall surface, and the inner wall surface of the inner ring body is sequentially divided into an upper section, a middle section and a lower section in the axial direction. The upper section of the inner wall surface has a flow guiding surface. Any point from the upper segment to the inclined surface or arc surface with a decreasing inner diameter connecting the middle segment. In this way, the fan frame has a better effect of introducing airflow.

Wherein, the lower section of the inner wall surface has a diameter-enlarging portion, and the diameter-enlarging portion is an inclined surface or a curved surface with an increasing inner diameter from the lower section connecting the middle section to the free end of the lower section. In this way, the fan frame can form a better heat dissipation effect on the heat sink.

Wherein, the inner ring body has a center line, the shaft seat of the base has a center line, and the center line of the shaft seat is coaxial with the center line of the inner ring body. In this way, the fan frame can form a better heat dissipation effect on the to-be-radiated member.

The connecting members are connected to the lower end of the inner wall surface of the outer ring body. In this way, the base and the outer ring system have a better fixing effect.

The inner ring body has an inner wall surface. The inner wall surface of the inner ring body is sequentially divided into an upper section, a middle section, and a lower section in the axial direction. The plurality of connecting members are connected to the lower section of the inner wall surface of the inner ring body. . In this way, the base and the outer ring system have a better fixing effect.

The connecting members are connected to the bottom end surface of the inner ring body. In this way, the base and the outer ring system have a better fixing effect.

Wherein, the plurality of connecting members are stationary leaves, guide rods or guide fins. In this way, the plurality of connecting members can further form a better diversion or boosting effect.

Wherein, a groove is provided on the bottom end surface of one or more of the connecting members. In this way, the wire system of the fan frame can be disposed in the groove, so that the wire has a better positioning effect.

Wherein, the plurality of through-hole portions further have at least one reinforcing body, and the reinforcing body connects the inner ring body and the outer ring body. In this way, the fan frame can have better strength.

Wherein, the reinforcing body includes an axial reinforcing body, and the axial reinforcing body extends in the axial direction of the inner ring body to form two adjacent hollow portions that are not connected in the radial direction. In this way, the fan frame can have better strength.

Wherein, the reinforcing body includes a radial reinforcing body, and the radial reinforcing body extends in the radial direction of the inner ring body to form two adjacent hollow portions which are not connected in the axial direction. In this way, the fan frame can have better strength.

Wherein, an axial reinforcement is extended on each of the upper and lower surfaces of the radial reinforcement. In this way, the fan frame can have better strength.

The outer ring body has a first axial height, and the thickness of the reinforcing body is less than or equal to 30% of the first axial height. In this way, the reinforcing body can be prevented from being too thick and deformed during forming, and has the effect of improving the forming quality.

The inner wall surface of the radial cross section of the outer ring body has a polygonal shape or a non-circular shape. The outer wall surface shape of the radial cross section of the inner ring body is different from the inner wall surface shape of the radial cross section of the outer ring body. In this way, the unconnected parts between the outer ring body and the inner ring body can form a plurality of hollow portions, which has the effect of reducing the material for manufacturing the fan frame.

The inner wall surface of the radial cross section of the outer ring body forms a square, and the outer wall surface of the radial cross section of the inner ring body forms a perfect circle shape. In this way, the unconnected parts between the outer ring body and the inner ring body can form a plurality of hollow portions, which has the effect of reducing the material for manufacturing the fan frame.

Wherein, the plurality of second connection portions and the plurality of first connection portions are adhesively connected with an adhesive, and the connecting member of the base is adhered to the outer ring body or the inner ring body with an adhesive. In this way, the outer ring body and the inner ring system have the effect of being connected as a whole.

Wherein, the plurality of second connecting portions and the plurality of first connecting portions are bonded with high frequency, and the connecting member of the base is bonded with the outer ring or the inner ring with high frequency. In this way, the outer ring body and the inner ring system are connected as a whole and have a relatively strong effect.

Wherein, the plurality of second connecting portions are integrally connected to the plurality of first connecting portions, and the connecting member of the base is integrally connected to the outer ring body or the inner ring body. In this way, the connection between the outer ring body and the inner ring body has a relatively strong effect.

Wherein, the outer ring body, the inner ring body and the base are formed in the same mold at one time. In this way, the connection between the outer ring body and the inner ring body has a relatively strong effect.

Wherein, one or both of the outer ring body, the inner ring body and the base are formed first, and then the formed outer ring body, the inner ring body or the base is placed into a mold, so that The outer ring body is integrally formed with the inner ring body and the base. In this way, the materials of the outer ring body and the inner ring body may be the same or different, so that the design of the fan frame has a more variable effect.

     〔this invention〕     

1‧‧‧ outer ring

1a‧‧‧Inner wall surface

1b‧‧‧outer wall surface

11‧‧‧ positioning holes

12‧‧‧ tube body

13‧‧‧ gap

14‧‧‧ missing slot

15, 15a, 15b ‧‧‧ connecting plate

10‧‧‧ axial end face

2‧‧‧ inner ring body

2a‧‧‧Inner wall surface

2aa‧‧‧upper

2ab‧‧‧middle

2ac‧‧‧ lower paragraph

2b‧‧‧outer wall surface

21‧‧‧ diversion surface

22‧‧‧Expansion Department

3‧‧‧ base

31‧‧‧Shaft

32‧‧‧Connector

33‧‧‧Trench

4‧‧‧ Reinforcing body

4a, 4c ‧‧‧ axial reinforcement

4b‧‧‧Radial reinforcement

5‧‧‧Driver

51‧‧‧ stator

52‧‧‧Circuit Board

6‧‧‧ rotor

61‧‧‧rotation axis

62‧‧‧ Blade

C‧‧‧Connecting Department

C1‧‧‧First connection

C2‧‧‧Second connection section

H1‧‧‧ first axial height

H2‧‧‧Second axial height

R‧‧‧ through-air department

L‧‧‧ tube length

X1, X2‧‧‧ Centerline

     [Learning]     

8‧‧‧ fan frame

80‧‧‧Frame

81‧‧‧ wind tunnel

82‧‧‧ base

83‧‧‧ Positioning hole

9‧‧‧ fan frame

90‧‧‧Frame

91‧‧‧air duct

92‧‧‧ base

93‧‧‧ Positioning hole

94‧‧‧hole

Figure 1: A perspective view of a conventional fan frame.

Figure 2: A perspective view of another conventional fan frame.

Figure 3: An exploded perspective view of the first preferred embodiment of the present invention.

Fig. 4: A combined perspective view of a preferred embodiment of the present invention.

Fig. 5: A sectional view taken along line A-A in Fig. 4.

Fig. 6: A sectional view taken along line B-B in Fig. 4.

Figure 7: A perspective view of a second preferred embodiment of the present invention.

Figure 8: A perspective view of a preferred embodiment of the present invention forming a fan.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention in conjunction with the accompanying drawings, and the detailed description is as follows: Please refer to FIGS. 3, 4, and 5 It is the first preferred embodiment of the fan frame of the present invention, and is composed of an outer ring body 1, an inner ring body 2 and a base 3. The inner ring body 2 and the outer ring body 1 are formed by several The connecting portion C is connected, and the base 3 may be connected to the inner ring body 2 or the outer ring body 1.

The outer ring body 1 is an axially penetrating hollow ring body and has a first axial height H1. The outer ring body 1 has an inner wall surface 1a and an outer wall surface 1b. The inner wall surface 1a may be formed in a polygonal shape or a non-circular shape, which is not limited in the present invention. In the present embodiment, the radial cross-sectional shape of the outer ring body 1 is generally described as a square shape, but it is not limited that the inner wall surface 1a of the outer ring body 1 is only the square shape. The outer ring The body 1 may further have a plurality of positioning holes 11, which may be formed as through holes of a pipe body 12, and the pipe body 12 may be formed on the inner wall surface 1 a or the outer wall surface 1 b of the outer ring body 1, and The length L of the pipe body 12 may be equal to or less than the first axial height H1 of the outer ring body 1, which is not limited in the present invention. In this embodiment, the pipe body 12 is formed on the inner wall surface of the outer ring body 1. At the corner of 1a, the outer wall surface 1b of the outer ring body 1 still maintains the existing square shape. One of the wall surfaces of the outer ring body 1 may further be provided with a notch portion 13 and a notch 14. The notch portion 13 penetrates the inner wall surface 1 a and the outer wall surface 1 b, and the notch 14 is connected to the notch in a radial extension. The notch 14 communicates with one of the axial end faces 10 of the outer ring body 1. The notch 13 and the notch 14 can be used for threading. The outer ring body 1 has a plurality of first connecting portions C1. .

The inner ring body 2 is also an axially penetrating hollow ring body. The inner ring body 2 has an inner wall surface 2a and an outer wall surface 2b. The shape of the outer wall surface 2b of the radial section of the inner ring body 2 is the same as that of the outer ring. The inner wall surface 1a of the radial section of the body 1 has a different shape. The area surrounded by the inner wall surface 2a is an axial air flow channel. The inner wall surface 2a is preferably a perfect circle and has a centerline X1. The inner ring The body 2 has a second axial height H2. The second axial height H2 is preferably equal to or smaller than the first axial height H1 of the outer ring body 1. When the inner ring body 2 is connected to the outer ring body 1, The top and bottom ends of the inner ring body 2 do not protrude from the top and bottom ends of the outer ring body 1. The inner wall surface 2a of the inner ring body 2 with the second axial height H2 can be sequentially divided into an upper section 2aa, a middle section 2ab, and a lower section 2ac from the top to the bottom, and the length and proportion of the upper section 2aa, the middle section 2ab, and the lower section 2ac are different. To be limited, the upper section 2aa of the inner wall surface 2a preferably has a diversion surface 21, which is an inclined surface or an arc surface with a decreasing inner diameter from any point of the upper section 2aa to the portion connecting the middle section 2ab. The diversion surface The length of 21 is not limited; the lower section 2ac of the inner wall surface 2a preferably has an enlarged diameter portion 22, which is connected by the lower section 2ac to the middle section 2ab to the inner end of the inner ring body 2 in an increasing inner diameter. The inclined surface or the curved surface is not limited in length.

The inner ring body 2 has a plurality of second connecting portions C2, and the plurality of second connecting portions C2 of the inner ring body 2 can be connected to the plurality of first connecting portions C1 of the outer ring body 1, so that the inner ring body 2 is formed in a range surrounded by the inner wall surface 1a of the outer ring body 1, the connection system may be the tangent connection between the plurality of second connection portions C2 and the plurality of first connection portions C1, or the number The second connection portions C2 and the plurality of first connection portions C1 are partially overlapped and connected. The transport connection can be connected by an integral molding method such as adhesive bonding, high frequency bonding, ultrasonic bonding, or plastic injection. The integrated molding method can be that the outer ring body 1 and the inner ring body 2 are formed in the same mold at one time. Or, one of the outer ring body 1 and the inner ring body 2 is formed first, and then the formed outer ring body 1 or the inner ring body 2 is put into a mold to make the outer ring body 1 and the inner ring body 1 The ring body 2 is integrally formed. Furthermore, the materials of the outer ring body 1 and the inner ring body 2 may be the same or different. For example, but not limited to, one of the outer ring body 1 and the inner ring body 2 is made of metal material, and the other is made of plastic. Made of material; or one of the outer ring body 1 and the inner ring body 2 is made of a first plastic, and the other is made of a second plastic. Because the inner ring body 2 and the outer ring body 1 have different radial cross-sectional shapes, a plurality of hollow portions R can be formed between the inner ring body 2 and the outer ring body 1. Thus, the inner ring The body 2 and the outer ring body 1 can greatly reduce the molding material, thereby reducing the material cost of the fan frame.

As shown in FIG. 4, the outer ring body 1 may further include two connecting plates 15 a and 15 b in the cutout 13. One end of the two connecting plates 15 a and 15 b is connected to the outer ring body 1. The two connecting plates 15 a, 15b is connected to the inner ring body 2 at the other end. In this way, after the inner ring body 2 is connected to the outer ring body 1, the notch portion 13 not only has a better appearance, but the connecting plate 15 further strengthens the inner ring body. The connection effect between 2 and the outer ring body 1 can further form a conducting wire through the two connecting plates 15a, 15b and the notch 14 together.

Please refer to Figs. 3, 4, and 5 again. The base 3 has a shaft base 31. The shaft base 31 can be positioned on the base 3 by assembly or integral molding. The shaft base 31 can also be a shaft. Tube, so that the shaft tube is positioned on the base 3 in an assembled or integrated manner. The shaft seat 31 has a center line X2. The center line X2 of the shaft seat 31 and the center line X1 of the inner ring body 2 preferably overlap as Co-axial. The base 3 has a plurality of connecting members 32, one end of the connecting member 32 is connected to the base 3, and the other end of the connecting member 32 can be connected to the outer ring body 1 or the inner ring body 2, which can be connected The present invention is not limited to the lower end of the inner wall surface 1a of the outer ring body 1, or connected to the lower inner wall surface 2a of the inner ring body 2, or the bottom end surface of the inner ring body 2. In this embodiment, The other end of the connecting member 32 is connected to the lower wall surface 2 a of the inner ring body 2. The other end of the connecting member 32 is connected to the outer ring body 1 or the inner ring body 2 and can be connected with an adhesive, high frequency adhesion or integral molding. The integral molding method can also be the outer ring. Body 1, the inner ring body 2 and the base 3 are molded at the same time in the same mold, or one or both of the outer ring body 1, the inner ring body 2 and the base 3 are molded first, and then the already formed The outer ring body 1, the inner ring body 2, or the base 3 is placed into a mold, so that the outer ring body 1 is integrally formed with the inner ring body 2 and the base 3. The materials of the base 3 and the outer ring body 1 and the inner ring body 2 may be the same or different, and they may be made of materials such as metal or plastic, which is not limited in the present invention. The plurality of connecting members 32 may be a stationary blade, a guide rod, and a guide vane. When air flows through the plurality of connecting members 32, a better flow guiding or supercharging effect can be achieved. A groove 33 may also be provided on the bottom end surfaces of the plurality of connecting members 32, and the groove 33 may be formed on the bottom end surface of the plurality of connecting members 32 or one or more of them, so that the wires can pass through the groove 33. So that the wire can form a better positioning effect.

Please refer to FIG. 4, FIG. 5 and FIG. 6, which is a preferred embodiment of the fan frame of the present invention. The inner ring body 2 and the outer ring body 1 are connected by a plurality of connecting portions C. The base 3 A plurality of connecting members 32 are connected to the inner wall surface 2 a of the lower section of the inner ring body 2. In this way, the fan frame of the present invention can be formed. Because the outer cross section of the outer wall surface 2 b of the inner ring body 2 and the outer ring body The inner wall surface 1a of 1 has a different radial cross-sectional shape. Therefore, a plurality of hollow portions R can be formed between the inner ring body 2 and the outer ring body 1. In this way, the fan frame system of the present invention can be greatly reduced in use. material. And, because the outer ring body 1, the inner ring body 2 and the base 3 series can be made of the same or different materials, the fan frame system can form a more diverse design according to the needs of use, and The manufacturing cost of the fan frame can be reduced. In addition, since the outer ring body 1, the inner ring body 2, and the base 3 only have an axial structure or a through hole, the outer ring body 1, the inner ring body 2, and the base 3 can be combined with one another. The multi-cavity mode of the mold can be integrally formed or separately manufactured and then connected to form a fan frame, thereby achieving the effect of reducing the manufacturing cost of the fan frame.

Wherein, when the outer ring body 1, the inner ring body 2 and the base 3 are simultaneously molded in an integrated molding method, only the longitudinal axial centerlines X1, X2 of the outer ring body 1, the inner ring body 2 and the base 3 need be made. Consistent with the separation direction of the male and female molds, and the objects molded by the male and female molds can be designed on both sides of one of the separation lines of the male and female molds, so that the molded objects on the two sides of the separation line are aligned with the center line In X1 and X2 directions, the cross-sectional area of one end of each molded object far from the separation line cannot be larger than the cross-sectional area of one end close to the separation line, or each of the molded objects at one end far from the separation line cannot be larger than or projected radially closer to the part. Each of the molded objects at one end of the line is so that there is no problem that the mold cannot be demolded, and the outer ring body 1, the inner ring body 2 and the base 3 can be molded in an integrated manner, which belongs to the technical field to which the present invention belongs. Those with ordinary knowledge can understand.

Please refer to FIG. 7, which is the second preferred embodiment of the fan frame of the present invention. The plurality of through-hole portions R further have at least one reinforcing body 4. The reinforcing body 4 may be a rib or a flat plate or An arc-shaped plate, the reinforcing body 4 may be an axial reinforcing body 4a, 4c parallel to the above-mentioned centerline X1, X2, or a horizontal radial reinforcement perpendicular to the above-mentioned centerline X1, X2. The body 4b, the radial reinforcing body 4b is superposed on the male or female mold separation line or on one side of the male or female mold separation line. The reinforcing body 4a may also be connected between the inner ring body 2 and the outer ring body 1, or the radial reinforcing body 4b may be connected between two adjacent inner wall surfaces 1a of the outer ring body 1. In addition, the radial reinforcements 4b may be provided with axial reinforcements 4a, 4c above and below, and the upper and lower axial reinforcements 4a, 4c may also be arranged at an angle of 90 degrees. The reinforcing bodies 4a, 4c and the outer ring body 1 and the inner ring body 2 can still be integrally formed in a mold with multiple cavities. In addition, it is worth noting that, when the reinforcing body 4 is a rib or a flat plate or an arc plate as described above, the thickness of the reinforcing body 4 (that is, the reinforcing bodies 4a and 4c are taken as an example to be perpendicular to the above The thickness in the direction of the center line X1, X2; taking the reinforcing body 4b as an example, the thickness parallel to the above-mentioned center line in the direction of X1, X2) is less than or equal to 30% of the first axial height H1 of the outer ring body 1, according to In this way, the reinforcing body 4 can be prevented from being too thick and deformed during forming, and has the effect of improving the forming quality.

Please refer to FIG. 8, which is a preferred embodiment in which the fan frame of the present invention forms a fan. The base 3 can be combined with a driving member 5, which includes a stator 51 and a circuit board 52. In the shaft seat 31 of the base 3, a rotating shaft 61 of a rotor 6 is pivotally rotated. The rotor 6 has a plurality of blades 62. In this way, when a current is applied, the rotor 6 can drive the blades 62 to drive. The gas flows through the air flow channel of the inner ring body 2 to form a fan.

According to the above, according to the fan and the fan frame of the present invention, since the radial cross-sectional shape of the outer wall surface of the inner ring body of the fan frame is different from the radial cross-sectional shape of the inner wall surface of the outer ring body, the inner ring body and Several hollow parts can be formed between the outer ring bodies. In this way, the fan frame system of the present invention can greatly reduce the use of materials, and there will be no problem in forming the fan frame due to the excessive thickness of the material and the external depression of the finished product after cooling. The fan frame of the present invention has a better appearance. Furthermore, since the outer ring body, the inner ring body, and the base only have an axial structure or a through hole, the outer ring body, the inner ring body, and the base can be integrated in a mold with multiple cavities. Several fan frames are manufactured by molding. In this way, the manufacturing cost and man-hours of the fan frame can be greatly reduced, and effects such as improving process efficiency can be achieved.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications to the above embodiments without departing from the spirit and scope of the present invention. The technical scope protected by the invention, so the scope of protection of the present invention shall be determined by the scope of the appended patent application.

Claims (31)

    A fan frame includes: an outer ring body having an inner wall surface and a plurality of first connecting portions; an inner ring body having an outer wall surface and a plurality of second connecting portions, the number Two second connecting portions are connected to the plurality of first connecting portions, so that a plurality of hollow portions are formed between the outer wall surface of the inner ring body and the inner wall surface of the outer ring body; and a base having a shaft seat and several A connecting member, one end of each of the connecting members is connected to the outer ring body or the inner ring body.         The fan frame according to item 1 of the scope of patent application, wherein the second connection portion and the first connection portion form a tangent connection.         The fan frame according to item 1 of the scope of patent application, wherein the second connection portion and the first connection portion form a partially overlapping connection.         The fan frame according to item 1 of the scope of patent application, wherein the outer ring body has a plurality of positioning holes.         The fan frame according to item 4 of the scope of patent application, wherein each of the positioning holes is a through hole of a pipe body.         According to the sector of claim 5, the outer ring body has a first axial height, and the length of the pipe body is equal to or less than the first axial height of the outer ring body.         According to the sector of claim 5, the outer ring body has an outer wall surface, and the pipe body is formed on the inner wall surface or the outer wall surface of the outer ring body.         The fan frame according to item 1 of the scope of patent application, wherein a wall portion of the outer ring body is provided with a notch portion and a notch, the notch portion runs through the inner wall surface and the outer wall surface, and the notch extends radially. The ground is connected to the notch portion, and the notch communicates with an axial end surface of the wall surface of the outer ring body.         The fan frame according to item 8 of the scope of patent application, wherein the outer ring body is provided with two connecting plates at the notch portion, one end of the two connecting plates is connected to the outer ring body, and the other end of the two connecting plates is connected to the inner ring. body.         According to the sector of claim 1, the outer ring body has a first axial height, the inner ring body has a second axial height, and the second axial height is equal to or less than the first axial height. Axial height.         The fan frame according to item 1 of the scope of patent application, wherein the inner ring body has an inner wall surface, and the inner wall surface of the inner ring body is sequentially divided into an upper section, a middle section and a lower section in the axial direction. The upper section has a diversion surface. The diversion surface runs from any point in the upper section to the inclined surface or arc surface with a decreasing inner diameter connecting the middle section.         The fan frame according to item 11 of the scope of patent application, wherein the lower section of the inner wall surface has an enlarged diameter portion, and the enlarged diameter portion is an inclined surface or arc with an increasing inner diameter from the lower section to the middle section toward the free end of the lower section. surface.         The fan frame according to item 1 of the patent application scope, wherein the inner ring body has a center line, the shaft seat of the base has a center line, and the center line of the shaft seat is coaxial with the center line of the inner ring body.         The fan frame according to item 1 of the scope of patent application, wherein the plurality of connecting members are connected to the lower end of the inner wall surface of the outer ring body.         The fan frame according to item 1 of the scope of patent application, wherein the inner ring body has an inner wall surface, and the inner wall surface of the inner ring body is sequentially divided into an upper section, a middle section, and a lower section in the axial direction, and the several connections The piece is connected to the lower section of the inner wall surface of the inner ring body.         The fan frame according to item 1 of the scope of patent application, wherein the plurality of connecting members are connected to the bottom end surface of the inner ring body.         The fan frame according to item 1 of the scope of patent application, wherein the plurality of connecting members are stationary leaves, guide rods, or guide vanes.         The fan frame according to item 1 of the scope of patent application, wherein a groove is provided on a bottom end surface of one or more of the plurality of connecting members.         The fan frame according to item 1 of the scope of patent application, wherein the plurality of through-hole portions further have at least one reinforcing body, and the reinforcing body connects the inner ring body and the outer ring body.         The fan frame according to item 19 of the scope of patent application, wherein the reinforcing body includes an axial reinforcing body, and the axial reinforcing body extends in the axial direction of the inner ring body to form two adjacent ones that are not connected in the radial direction. Of the air vent.         The fan frame according to item 20 of the scope of patent application, wherein the reinforcing body comprises a radial reinforcing body, and the radial reinforcing body extends in the radial direction of the inner ring body to form two axially disconnected adjacent ones. Of the air vent.         The fan frame according to item 21 of the scope of patent application, wherein the upper and lower surfaces of the radial reinforcing body each extend with an axial reinforcing body.         The fan frame according to item 19 of the scope of patent application, wherein the outer ring body has a first axial height, and the thickness of the reinforcing body is less than or equal to 30% of the first axial height.         The fan frame according to any one of claims 1 to 23, wherein an inner wall surface of a radial cross section of the outer ring body is formed into a polygon or a non-circular shape, and an outer wall surface of a radial cross section of the inner ring body The shape is different from the shape of the inner wall surface in the radial section of the outer ring body.         The fan frame according to item 24 of the scope of the patent application, wherein the inner wall surface of the radial cross section of the outer ring body forms a square, and the outer wall surface of the radial cross section of the inner ring body forms a perfect circle shape.         The fan frame according to any one of claims 1 to 23, wherein the plurality of second connection portions and the plurality of first connection portions are adhesively connected with an adhesive, and the connecting member of the base is connected to the outer portion. The ring body or the inner ring body is bonded with an adhesive.         The fan frame according to any one of claims 1 to 23, wherein the plurality of second connecting portions and the plurality of first connecting portions are bonded by high frequency waves, and the connecting member of the base and the outer ring The body or the inner ring body is bonded with a high frequency.         The fan frame according to any one of claims 1 to 23, wherein the plurality of second connecting portions are integrally connected to the plurality of first connecting portions, and the connecting member of the base is integrally connected to the outer ring. Body or the inner ring body.         The fan frame according to item 28 of the scope of patent application, wherein the outer ring body, the inner ring body and the base are formed in the same mold at one time.         The fan frame according to item 28 of the scope of patent application, wherein one or both of the outer ring body, the inner ring body and the base are formed first, and then the outer ring body and the inner ring body that have been formed are formed. Or the base is put into a mold again, so that the outer ring body is integrally formed with the inner ring body and the base.         A fan using the fan frame as described in any one of claims 1 to 30 of the patent application scope, further comprising: a driving member and a rotor, the driving member is combined with the base, and the rotor is movable by a rotating shaft The ground is pivotally connected to the shaft seat of the base, and the rotor has several blades.