CN110762038B - Anti-pressing fan structure - Google Patents
Anti-pressing fan structure Download PDFInfo
- Publication number
- CN110762038B CN110762038B CN201911039574.9A CN201911039574A CN110762038B CN 110762038 B CN110762038 B CN 110762038B CN 201911039574 A CN201911039574 A CN 201911039574A CN 110762038 B CN110762038 B CN 110762038B
- Authority
- CN
- China
- Prior art keywords
- oil
- shell
- bearing
- base
- outer edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a press-proof fan structure, comprising: a fan frame having an upper casing and a lower casing, the upper casing having an air inlet; one end of the supporting shaft is inserted into one side of the lower shell, and the other end of the supporting shaft protrudes and exceeds the upper shell; the oil-retaining bearing is provided with a bearing hole and is sleeved outside the supporting shaft; a rotor set sleeved and combined with the outer edge of the oil-retaining bearing; a limiting element, which is sleeved on the outer edge of the supporting shaft and is close to the upper end of the oil-retaining bearing; the thrust element is sleeved on the outer edge of the supporting shaft and is close to the lower end of the oil-retaining bearing; and the stator group is arranged on the lower shell, adjacently surrounds the outer edge of the oil-retaining bearing and is not contacted with the oil-retaining bearing. By means of the structure, the fan is supported through the supporting shaft, the phenomenon that the fan stops rotating or is damaged due to the fact that an external unit above the fan is pressed excessively is avoided, and the purpose of preventing the fan from being pressed is achieved.
Description
Technical Field
The invention relates to the field of fans, in particular to an anti-pressing fan structure.
Background
The heat dissipation fan is widely assembled in electronic products such as desktop computers, notebook computers, tablet computers, etc. to generate heat dissipation function, and the design of the products such as notebook computers, tablet computers, etc. is light and thin, so the current fan is designed to be a thin fan in cooperation with the current trend of light and thin. However, the thin fan is easily pressed by the touch of the panel or the keyboard to cause the damage of the fan wheel or the deformation of the flow channel, so that the air cannot flow out.
Therefore, how to solve the above problems and disadvantages is a direction in which the present inventors and related manufacturers in the industry need to research and improve.
Disclosure of Invention
To solve the above problems, an object of the present invention is to provide a press-proof fan structure for preventing an external unit such as a keypad or a housing or a panel from pressing a rotor set or a fan frame.
Another object of the present invention is to provide a support shaft for supporting a rotor set in a fan frame, the support shaft having a protruding section protruding from the rotor set and the fan frame to receive an external unit, and maintaining an axial space between the external unit and the rotor set, at least preventing the rotor set from being pressed by the external unit.
Another objective of the present invention is to provide a fan frame with a flow channel, wherein at least one support pillar is disposed on the flow channel to support a protrusion on an outer surface of the fan frame, and the protrusion maintains an axial space between the external unit and the fan frame, so as to at least prevent the flow channel from being pressed by the external unit.
To achieve the above object, the present invention provides an anti-pressing fan structure, comprising:
a fan frame having an upper casing and a lower casing, the upper casing having an air inlet;
one end of the supporting shaft is inserted into one side of the lower shell, and the other end of the supporting shaft protrudes and exceeds the upper shell;
the oil-retaining bearing is provided with a bearing hole and is sleeved outside the supporting shaft;
a rotor set sleeved and combined with the outer edge of the oil-retaining bearing;
a limiting element, which is sleeved on the outer edge of the supporting shaft and is close to the upper end of the oil-retaining bearing;
the thrust element is sleeved on the outer edge of the supporting shaft and is close to the lower end of the oil-retaining bearing; and
and the stator group is arranged on the lower shell, adjacently surrounds the outer edge of the oil-retaining bearing and is not contacted with the oil-retaining bearing.
Prevent pressing fan structure, wherein: the supporting shaft is provided with a combination section, a protruding extension section and a protruding section, the combination section is arranged on the lower shell, the protruding extension section and the supporting end face the upper shell, the protruding section protrudes out of the air inlet, the oil-containing bearing, the limiting element and the thrust element are arranged on the protruding extension section, and the protruding section is provided with a butting surface.
Prevent pressing fan structure, wherein: the lower casing is provided with a base, the combining section of the supporting shaft is arranged on the base, the stator sets are adjacently wound on the outer edge of the base, and the base is provided with a base lower end face.
Prevent pressing fan structure, wherein: the outer edge of the lower shell extends vertically to form a side wall which surrounds to form an air outlet, the side wall combination of the lower shell defines a fan blade area and a flow passage area together, the flow passage area is provided with at least one support column, two ends of the support column are respectively abutted against the inner surfaces of the upper shell and the lower shell, an outer surface of the upper shell and an outer surface of the lower shell corresponding to two ends of the support column are respectively provided with an upper shell convex body and a lower shell convex body, the upper shell convex body is provided with a top joint surface which is aligned with the butt joint surface of the protruding section of the support shaft, the butt joint surface of the protruding section and the top joint surface of the upper shell convex body are used for bearing an external unit, a first axial space is formed between the external unit and the fan frame, the lower shell convex body is provided with a bottom joint surface, and the lower end surface of the base is used for bearing another external unit and a second axial space is formed between the other external unit and the fan frame.
Prevent pressing fan structure, wherein: the lower end face of the base is provided with the lower convex shell, and a butting face of the combining section and the lower end face of the base are contacted with the lower convex shell.
Prevent pressing fan structure, wherein: the thrust member has a first surface and a second surface, the first surface has a groove portion, the first surface faces the oil-retaining bearing, and the second surface faces the lower casing.
Prevent pressing fan structure, wherein: and another thrust member is arranged between the oil-retaining bearing and the limiting member, the first surface of the another thrust member faces the oil-retaining bearing, and the second surface of the another thrust member faces the limiting member.
Prevent pressing fan structure, wherein: the limiting element is a C-shaped retaining ring or an O-shaped retaining ring.
An anti-pressing fan structure, comprising:
a fan frame having an upper casing and a lower casing, the upper casing having an air inlet;
one end of the supporting shaft is inserted into one side of the lower shell, and the other end of the supporting shaft protrudes and exceeds the upper shell;
the oil-retaining bearing is provided with a bearing hole and is sleeved outside the supporting shaft, and the upper end surface and the lower end surface of the oil-retaining bearing are respectively provided with a groove part;
a rotor set sleeved and combined with the outer edge of the oil-retaining bearing;
a limiting element, which is sleeved on the outer edge of the supporting shaft and is close to the upper end of the oil-retaining bearing; and
and the stator group is arranged on the lower shell, adjacently surrounds the outer edge of the oil-retaining bearing and is not contacted with the oil-retaining bearing.
Prevent pressing fan structure, wherein: the supporting shaft is provided with a combination section, a protruding extension section and a protruding section, the combination section is arranged on the lower shell, the protruding extension section and the supporting end face the upper shell, the protruding section protrudes out of the air inlet, the oil-containing bearing, the limiting element and the thrust element are arranged on the protruding extension section, and the protruding section is provided with a butting surface.
Prevent pressing fan structure, wherein: the lower casing is provided with a base, the combining section of the supporting shaft is arranged on the base, the stator sets are adjacently wound on the outer edge of the base, and the base is provided with a base lower end face.
Prevent pressing fan structure, wherein: the outer edge of the lower shell extends vertically to form a side wall which surrounds to form an air outlet, the side wall combination of the lower shell defines a fan blade area and a flow passage area together, the flow passage area is provided with at least one support column, two ends of the support column are respectively abutted against the inner surfaces of the upper shell and the lower shell, an outer surface of the upper shell and an outer surface of the lower shell corresponding to two ends of the support column are respectively provided with an upper shell convex body and a lower shell convex body, the upper shell convex body is provided with a top joint surface which is aligned with the butt joint surface of the protruding section of the support shaft, the butt joint surface of the protruding section and the top joint surface of the upper shell convex body are used for bearing an external unit, a first axial space is formed between the external unit and the fan frame, the lower shell convex body is provided with a bottom joint surface, and the lower end surface of the base is used for bearing another external unit and a second axial space is formed between the other external unit and the fan frame.
Prevent pressing fan structure, wherein: the lower end face of the base is provided with the lower convex shell, and a butting face of the combining section and the lower end face of the base are contacted with the lower convex shell.
Prevent pressing fan structure, wherein: the limiting element is a C-shaped retaining ring or an O-shaped retaining ring.
By means of the structure, when the downward pressure is generated, the two ends of the supporting shaft are respectively contacted with the operation area of the electronic device and the inside of the shell, so that the downward pressure is prevented from being transmitted to the guide rotor set or the upper shell to cause the stop rotation or deformation damage of the fan, and the purpose of preventing the pressing of the fan is achieved.
Drawings
FIG. 1A is an exploded view of a first embodiment of the present invention;
FIG. 1B is a schematic combination diagram of the first embodiment of the present invention;
FIG. 1C is a schematic cross-sectional view of the first embodiment of the present invention;
FIG. 1D is a partial schematic view of FIG. 1C;
FIG. 2A is a schematic cross-sectional view of a second embodiment of the present invention;
FIG. 2B is a partial schematic view of a second embodiment of the present invention;
FIG. 3A is a schematic cross-sectional view of a third embodiment of the present invention;
FIG. 3B is a partial schematic view of a third embodiment of the present invention;
FIG. 4 is a partial schematic view of a fourth embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of an electronic device according to the present invention.
Description of reference numerals: a fan frame 1; an upper case 11; a lower case 12; a sidewall 121; a base 122; a base lower end surface 1221; the shaft barrel 123; an air inlet 13; an air outlet 14; a fan blade region 15; a flow channel region 16; a support column 17; an upper shell convex body 18; a top contact surface 181; a lower shell convex body 19; a bottom junction surface 191; a support shaft 2; a bonding section 21; an abutment surface 211; a protruding section 22; a protruding section 23; an abutment surface 231; an oil-impregnated bearing 3; the bearing hole 31; an upper end surface 32; a groove portion 321; a lower end face 33; a groove portion 331; a rotor set 4; a hub 41; the blades 42; a magnetic element 43; a limiting element 5; the thrust members 6, 6 a; first faces 61, 61 a; groove portions 611, 611 a; second faces 62, 62 a; a stator group 7; a circuit board 71; a stator body 72; a shaft hole 721; a pole 722; a coil 73; external units 8a, 8 b; a first axial space S1; second axial space S2.
Detailed Description
The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.
Referring to fig. 1A, fig. 1B, fig. 1C and fig. 1D, which are an exploded schematic view, an assembled schematic view, a cross-sectional schematic view and a partial schematic view of fig. 1C of a first embodiment of the present invention, the present invention mainly includes a fan frame 1, a support shaft 2, an oil-retaining bearing 3, a rotor group 4, a limiting element 5, a thrust element 6 and a stator group 7:
the fan frame 1 includes an upper casing 11 and a lower casing 12, a sidewall 121 extends vertically from an outer edge of the lower casing 12 and surrounds to form an air outlet 14, an air inlet 13 is disposed on the upper casing 11, the sidewall 121 of the upper casing 11 and the sidewall 121 of the lower casing 12 jointly define a fan blade area 15 and a flow channel area 16, the flow channel area 16 is provided with at least one support pillar 17, two ends of the support pillar 17 respectively abut against the upper casing 11 and the lower casing 12 to support the flow channel area 16, the position of the air inlet 13 corresponds to the position above the fan blade area 15, the lower casing 12 has a base 122, the support shaft 2 is disposed on the base 122, the base 122 has a lower end face 1221, and the stator assembly 7 adjacently surrounds the outer edge of the base 122.
The supporting shaft 2 has a combining section 21, a protruding section 22 and a protruding section 23, the combining section 21 is disposed on the base 122, the protruding section 22 and the protruding section 23 face the upper shell 11, the protruding section 23 protrudes the air inlet 13, the combining section 21 has an abutting surface 211, and the protruding section 23 has an abutting surface 231.
The oil-impregnated bearing 3 has a bearing hole 31 and is fitted over the protruding section 22 of the support shaft 2.
The rotor set 4 is sleeved and combined with the outer edge of the oil-retaining bearing 3, the rotor set 4 comprises a hub 41, and the hub is sleeved and combined with the outer edge of the oil-retaining bearing 3; a plurality of blades 42 extending outwardly from the outer periphery of the hub 41; and a magnetic element 43 disposed on the inner periphery of the hub 41 and horizontally opposite to the stator set 7, wherein the magnetic element 43 is, for example, a ring magnet.
The limiting element 5 is sleeved on the protruding section 22 of the supporting shaft 2 and is close to the upper end of the oil-retaining bearing 3, and the limiting element 5 is a C-shaped retaining ring or an O-shaped retaining ring.
The thrust member 6 is sleeved on the protruding section 22 of the supporting shaft 2 and is close to the lower end of the oil-retaining bearing 3, the thrust member 6 has a first surface 61 and a second surface 62, the first surface 61 has a groove portion 611, the first surface 61 faces the oil-retaining bearing 3, and the second surface 62 faces the lower shell 12.
The stator assembly 7 is disposed on one side of the lower casing 12 and adjacently surrounds the outer edge of the oil-retaining bearing 3 without contacting the oil-retaining bearing 3, the stator assembly 7 includes a circuit board 71; a stator body 72 disposed on the circuit board 71 and formed by stacking a plurality of silicon steel sheets in sequence, the stator body 72 having a shaft hole 721 and a plurality of poles 722; and a plurality of coils 73 respectively disposed on the poles 722.
It should be particularly noted that the oil-retaining bearing 3, the limiting element 5 and the thrust element 6 are disposed on the protruding section 22, the supporting pillar 17 has two ends respectively abutting against an inner surface of the upper shell 11 and the lower shell 12, an outer surface of the upper shell 11 and the lower shell 12 is respectively provided with an upper shell convex 18 and a lower shell convex 19 corresponding to two ends of the supporting pillar 17, the upper shell convex 18 has a top contact surface 181 aligned with the abutting surface 231 of the protruding section 23 of the supporting shaft 2, the lower base end surface 1221 is disposed with the lower shell convex 19, the abutting surface 211 of the coupling section 21 and the lower base end surface 1221 are in contact with the lower shell convex 19, the lower shell convex 19 has a bottom contact surface 191, and the bottom contact surfaces 191 are aligned with each other.
Referring to fig. 5, it is a schematic cross-sectional view of an electronic device to which the present invention is applied, and referring to fig. 1A to 1D, the fan of the present invention is disposed in an electronic device to help heat dissipation of an internal heating element, the electronic device is illustrated in the present figure, but not limited to this, it can also be a tablet computer, a mobile phone, or a handheld game machine, an external unit 8a is a keyboard in this embodiment, but other embodiments such as a touch panel, a touch pad, or a casing are located above the fan frame 10, the abutting surface 231 of the protruding section 23 and the abutting surface 181 of the upper housing protrusion 18 receive an external unit 8a, and form a first axial space S1 between the external unit 8 and the fan frame 1, so that when the external unit 8a of the electronic device is used to generate a downward pressure, the flow channel area 16 and the support shaft 2 support the fan blade area 15 through the support pillar 17 and maintain the axial space S, and the first axial space S1 provides a temporary pressing-down micro-deformation space for the external unit 8a to be pressed, so as to prevent the external unit 8a from pressing the oil-retaining bearing 3, the hub 41 and the upper shell 11, thereby ensuring that the hub 41 will not stop rotating due to pressing and the upper shell 11 will not deform to interfere with the rotation of the blade 42.
Furthermore, the lower shell protrusions 19 abut against another external unit 8b located below the fan frame 1, such as a casing in the present embodiment, but other embodiments such as a touch panel or a touch pad or a keyboard, and a second axial space S2 is formed between the another external unit 8b and the lower shell 12 of the fan frame 1. This prevents the other external unit 8b from pressing the fan blade area 15 or the runner area 16 in the fan frame 1, prevents the hub 41 from being pressed and unable to operate and/or prevents the runner area 16 from being pressed and deformed
In addition, the groove portion 611 on the first surface 61 of the thrust member 6 is matched with the groove portion 611 to generate a fluid thrust when the oil-retaining bearing 3 rotates, so that a gap is maintained between the oil-retaining bearing 3 and the thrust member 6, and the influence of axial shake of the oil-retaining bearing 3 along the support shaft 2 during rotation on stability and contact wear during rotation is avoided.
Referring to fig. 2A and fig. 2B, which are a schematic cross-sectional view and a partial schematic view of a second embodiment of the present invention, and referring to fig. 1A to fig. 1D, the present embodiment is substantially the same as the first embodiment, and therefore the same parts are not repeated, the main difference is that another thrust member 6a is disposed between the oil-retaining bearing 3 and the position-limiting member 5, a first surface 61A of the thrust member 6a faces the oil-retaining bearing 3, a second surface 62A faces the position-limiting member 5, and the first surface 61A has a groove portion 611A.
When the oil-retaining bearing 3 rotates, the groove portions 611 and 611a are matched to generate a fluid thrust, so that a gap is reserved between the oil-retaining bearing 3 and the thrust elements 6 and 6a, the influence of axial shaking of the oil-retaining bearing 3 along the supporting shaft 2 during rotation on stability and contact abrasion during rotation is avoided, and the effect of bidirectional stability is achieved.
Referring to fig. 3A and fig. 3B, a cross-sectional view and a partial view of a third embodiment of the present invention are shown, and with reference to fig. 1A to fig. 1D, the present embodiment is substantially the same as the first embodiment, and therefore the description thereof is omitted, and the main difference is that the supporting pillar 17 of the present embodiment is directly combined with the lower shell 12, the lower shell 12 has a shaft cylinder 123, and the stator set 7 adjacently surrounds the outer edge of the shaft cylinder 123, so that the base 122 is omitted.
In addition, although only one thrust member 6 is used in the third embodiment, the thrust member 6a can be applied by matching with the technical features of the second embodiment, and another thrust member 6a is disposed between the oil-retaining bearing 3 and the limiting member 5 (see fig. 2A and 2B), so as to achieve the effect of bidirectional stability.
Fig. 4 is a partial schematic view of a fourth embodiment of the present invention, and referring to fig. 1A to fig. 1D, the present embodiment is substantially the same as the first embodiment, and therefore the same parts are not repeated, and the main difference is that an upper end surface 32 of the oil-retaining bearing 3 of the present embodiment is provided with a groove portion 321 and a lower end surface 33 is provided with a groove portion 331, so that a fluid thrust is generated when the oil-retaining bearing 3 rotates, and the oil-retaining bearing 3 directly maintains a gap with the thrust member 6 and the base 122, thereby omitting the thrust member 6.
In addition, although the fan frame 1 used in the fourth embodiment has the base 122, it can be practically applied with the technical features of the third embodiment without the base 122.
In summary, the present invention has the following advantages:
prevent that external unit from oppressing the runner in this rotor group and fan frame:
maintaining a first and a second axial space between the outer unit and the hub, at least preventing the rotor set from being pressed by the outer unit;
the first and second axial spaces are maintained between the external unit and the lower casing of the fan frame, preventing the flow passage from being pressed by the external unit.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. An anti-pressing fan structure, comprising:
the fan frame is provided with an upper shell and a lower shell, the upper shell is provided with an air inlet, the side wall combination of the lower shell jointly defines a fan blade area and a flow channel area, the flow channel area is provided with at least one supporting column, and two ends of the supporting column are respectively abutted against the inner surfaces of the upper shell and the lower shell;
one end of the supporting shaft is inserted into one side of the lower shell, and the other end of the supporting shaft protrudes and exceeds the upper shell;
the oil-retaining bearing is provided with a bearing hole and is sleeved outside the supporting shaft;
a rotor set sleeved and combined with the outer edge of the oil-retaining bearing;
a limiting element, which is sleeved on the outer edge of the supporting shaft and is close to the upper end of the oil-retaining bearing;
the thrust element is sleeved on the outer edge of the support shaft and is close to the lower end of the oil-containing bearing, the thrust element is provided with a first surface and a second surface, the first surface is provided with a groove part, the first surface faces the oil-containing bearing, and the second surface faces the lower shell; and
a stator group which is arranged on the lower shell, adjacently surrounds the outer edge of the oil-retaining bearing and is not contacted with the oil-retaining bearing;
the upper housing is independent of the rotor set.
2. The anti-press fan structure according to claim 1, characterized in that: the supporting shaft is provided with a combination section, a protruding extension section and a protruding section, the combination section is arranged on the lower shell, the protruding extension section and the supporting end face the upper shell, the protruding section protrudes out of the air inlet, the oil-containing bearing, the limiting element and the thrust element are arranged on the protruding extension section, and the protruding section is provided with a butting surface.
3. The anti-press fan structure according to claim 2, wherein: the lower casing is provided with a base, the combining section of the supporting shaft is arranged on the base, the stator sets are adjacently wound on the outer edge of the base, and the base is provided with a base lower end face.
4. The anti-press fan structure according to claim 3, wherein: a side wall vertically extends from the outer edge of the lower shell, and the side wall surrounds to form an air outlet;
and an upper shell convex body and a lower shell convex body are respectively arranged at two ends of the outer surfaces of the upper shell and the lower shell corresponding to the support column, the upper shell convex body is provided with a top joint surface which is aligned with the butt joint surface of the protruding section of the support shaft, the butt joint surface of the protruding section and the top joint surface of the upper shell convex body are used for bearing an external unit, a first axial space is formed between the external unit and the fan frame, the lower shell convex body is provided with a bottom joint surface, and the lower end surface of the base and the bottom joint surface are used for bearing another external unit and forming a second axial space between the other external unit and the fan frame.
5. The anti-press fan structure according to claim 4, wherein: the lower end face of the base is provided with the lower convex shell, and a butting face of the combining section and the lower end face of the base are contacted with the lower convex shell.
6. The anti-press fan structure according to claim 5, wherein: and another thrust member is arranged between the oil-retaining bearing and the limiting member, the first surface of the another thrust member faces the oil-retaining bearing, and the second surface of the another thrust member faces the limiting member.
7. The anti-press fan structure according to claim 1, characterized in that: the limiting element is a C-shaped retaining ring or an O-shaped retaining ring.
8. An anti-pressing fan structure, comprising:
the fan frame is provided with an upper shell and a lower shell, the upper shell is provided with an air inlet, the side wall combination of the lower shell jointly defines a fan blade area and a flow channel area, the flow channel area is provided with at least one supporting column, and two ends of the supporting column are respectively abutted against the inner surfaces of the upper shell and the lower shell;
one end of the supporting shaft is inserted into one side of the lower shell, and the other end of the supporting shaft protrudes and exceeds the upper shell;
the oil-retaining bearing is provided with a bearing hole and is sleeved outside the supporting shaft, and the upper end surface and the lower end surface of the oil-retaining bearing are respectively provided with a groove part;
a rotor set sleeved and combined with the outer edge of the oil-retaining bearing;
the thrust element is sleeved on the outer edge of the support shaft and is close to the lower end of the oil-containing bearing, the thrust element is provided with a first surface and a second surface, the first surface is provided with a groove part, the first surface faces the oil-containing bearing, and the second surface faces the lower shell;
a limiting element, which is sleeved on the outer edge of the supporting shaft and is close to the upper end of the oil-retaining bearing; and
and the stator group is arranged on the lower shell, adjacently surrounds the outer edge of the oil-retaining bearing and is not contacted with the oil-retaining bearing.
9. The anti-press fan structure of claim 8, wherein: the supporting shaft is provided with a combination section, a protruding extension section and a protruding section, the combination section is arranged on the lower shell, the protruding extension section and the supporting end face the upper shell, the protruding section protrudes out of the air inlet, the oil-containing bearing, the limiting element and the thrust element are arranged on the protruding extension section, and the protruding section is provided with a butting surface.
10. The anti-press fan structure of claim 9, wherein: the lower casing is provided with a base, the combining section of the supporting shaft is arranged on the base, the stator sets are adjacently wound on the outer edge of the base, and the base is provided with a base lower end face.
11. The anti-press fan structure as claimed in claim 10, wherein: a side wall vertically extends from the outer edge of the lower shell, and the side wall surrounds to form an air outlet;
and an upper shell convex body and a lower shell convex body are respectively arranged at two ends of the outer surfaces of the upper shell and the lower shell corresponding to the support column, the upper shell convex body is provided with a top joint surface which is aligned with the butt joint surface of the protruding section of the support shaft, the butt joint surface of the protruding section and the top joint surface of the upper shell convex body are used for bearing an external unit, a first axial space is formed between the external unit and the fan frame, the lower shell convex body is provided with a bottom joint surface, and the lower end surface of the base and the bottom joint surface are used for bearing another external unit and forming a second axial space between the other external unit and the fan frame.
12. The anti-press fan structure as claimed in claim 11, wherein: the lower end face of the base is provided with the lower convex shell, and a butting face of the combining section and the lower end face of the base are contacted with the lower convex shell.
13. The anti-press fan structure of claim 8, wherein: the limiting element is a C-shaped retaining ring or an O-shaped retaining ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108138118 | 2019-10-22 | ||
| TW108138118A TWI697625B (en) | 2019-10-22 | 2019-10-22 | Pressproof fan structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110762038A CN110762038A (en) | 2020-02-07 |
| CN110762038B true CN110762038B (en) | 2022-02-01 |
Family
ID=69334786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911039574.9A Active CN110762038B (en) | 2019-10-22 | 2019-10-29 | Anti-pressing fan structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110762038B (en) |
| TW (1) | TWI697625B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007110B (en) * | 2021-03-31 | 2022-12-09 | 无锡睿勤科技有限公司 | Oil-retaining pressure-resistant fan |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070048125A1 (en) * | 2005-08-30 | 2007-03-01 | Zippy Technology Corp. | Rotary structure of a heat dissipating fan |
| TWI349071B (en) * | 2008-02-01 | 2011-09-21 | Delta Electronics Inc | Fan |
| TWM417596U (en) * | 2011-05-30 | 2011-12-01 | Adda Corp | Heat dissipation fan |
| CN202673740U (en) * | 2012-06-19 | 2013-01-16 | 苏州聚力电机有限公司 | Novel axis-inverted cooling fan |
| CN202673720U (en) * | 2012-07-16 | 2013-01-16 | 苏州聚力电机有限公司 | Shaft-center-inverted type radiating fan with back shore limiting component |
| CN202867310U (en) * | 2012-08-22 | 2013-04-10 | 苏州聚力电机有限公司 | Runner supporting compression-resistant structure of cooling fan |
| CN202867308U (en) * | 2012-08-22 | 2013-04-10 | 苏州聚力电机有限公司 | Runner columnar supporting structure of cooling fan |
| CN109681449A (en) * | 2018-02-06 | 2019-04-26 | 全亿大科技（佛山）有限公司 | The electronic device of radiator fan and the application radiator fan |
| TWM590197U (en) * | 2019-10-22 | 2020-02-01 | 奇鋐科技股份有限公司 | Anti-pressing fan structure |
-
2019
- 2019-10-22 TW TW108138118A patent/TWI697625B/en active
- 2019-10-29 CN CN201911039574.9A patent/CN110762038B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TW202117191A (en) | 2021-05-01 |
| TWI697625B (en) | 2020-07-01 |
| CN110762038A (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8475126B2 (en) | Housing assembly for use in fan unit and fan unit including the same | |
| US9909591B2 (en) | Blower fan | |
| EP2924298B1 (en) | Hydrodynamic bearing structure for bearing cooling fan and method for assembling the same | |
| EP2518324A2 (en) | Cooling fan | |
| US20150244213A1 (en) | Thin axial gap motor | |
| US6332758B1 (en) | Air-bearing fan | |
| CN110762038B (en) | Anti-pressing fan structure | |
| CN110637168B (en) | Magnetic bearing | |
| CN211009195U (en) | Anti-pressing fan structure | |
| CN103104510A (en) | Thin type fan and manufacturing method thereof | |
| US10533561B2 (en) | Ceiling fan | |
| CN108425866B (en) | Thin fan | |
| US11209005B2 (en) | Pressproof fan structure | |
| US11092147B2 (en) | Magnetically driven pump | |
| CN211009164U (en) | Press-resistant fan structure | |
| US9267508B2 (en) | Fan assembly | |
| US20140161653A1 (en) | Cooling fan having bent bearing housing for retaining lubricant | |
| CN101714795B (en) | Motor | |
| US11118600B2 (en) | Anti-press fan structure | |
| CN201286045Y (en) | Motor | |
| JP2003274602A (en) | Spindle motor | |
| CN110735801A (en) | Press-resistant fan structure | |
| KR102560648B1 (en) | Sealing structure of centrifugal pump | |
| KR100360245B1 (en) | Structure for reducing driven torque of turbo compressor | |
| KR102254495B1 (en) | Motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |