CN218817084U - High-wind-capacity high-stability direct-current fan - Google Patents
High-wind-capacity high-stability direct-current fan Download PDFInfo
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- CN218817084U CN218817084U CN202222851824.2U CN202222851824U CN218817084U CN 218817084 U CN218817084 U CN 218817084U CN 202222851824 U CN202222851824 U CN 202222851824U CN 218817084 U CN218817084 U CN 218817084U
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- Prior art keywords
- heat dissipation
- circuit board
- dissipation ring
- outer frame
- fan
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- 230000017525 heat dissipation Effects 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 20
- 241000883990 Flabellum Species 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a big high stability direct current fan of wind volume relates to a fan field. Including frame, flabellum, stator core, cooling ring, circuit board, axis, the frame includes air intake and air outlet, stator core and frame fixed connection, the cooling ring is installed in the air outlet end of frame, flabellum, stator core, cooling ring, circuit board are worn to locate by the axis, the cooling ring is equipped with the fixing device with circuit board intermeshing, paste and fix through fixing device between circuit board and the cooling ring.
Description
Technical Field
The utility model relates to a heat abstractor field, concretely relates to big high stability direct current fan of wind.
Background
Currently, the cooling method of the equipment heat source includes: natural cooling, forced air cooling (air cooling), direct liquid cooling (water cooling) and evaporative cooling, water cooling and evaporative cooling cost are too high, and in contrast, air cooling is a better cooling method in both heat dissipation efficiency and cost, so common cooling methods all use air cooling, i.e. use fans to dissipate heat. Along with the increasing diversification of military equipment, the power is also larger and larger, the self heating value is also increased, and the air volume of the fan is higher.
The common heating source of the direct current fan is a stator core and a circuit board. The stator core is a metal component, and the inner wall of the outer frame is an air flow channel which dissipates heat through contact. The circuit board selects different heat dissipation modes according to the power and the fan volume, and when the power is low, the circuit board meets the self heat dissipation requirement through natural cooling; when the power is larger, the circuit board usually attaches a power tube (main heating device) to the bottom of the outer frame, and the power tube is used as a heat dissipation medium to increase the heat dissipation efficiency.
The fan blade of the existing fan usually comprises a hub and a plurality of blades integrally extending outwards from the outer periphery of the hub, the blades are usually arranged in an inclined manner along the clockwise or anticlockwise direction, and the air volume of the fan during operation cannot achieve the expected effect.
The heat dissipation modes of two circuit boards of the existing fan cannot meet the self heat dissipation requirements when the power of the fan is higher than 150W.
Disclosure of Invention
For solving the defects of the prior art, an object of the utility model is to provide a high-wind-volume high-stability direct current fan
In order to realize the above object, the utility model adopts the following technical scheme:
the utility model provides a high stability direct current fan of big wind-force which characterized in that: the fan blade heat dissipation device comprises an outer frame, fan blades, a stator iron core, a heat dissipation ring, a circuit board, a central shaft and magnetic steel, wherein the outer frame comprises an air inlet and an air outlet, the stator iron core is fixedly connected with the outer frame, the heat dissipation ring is installed at the air outlet end of the outer frame, the central shaft penetrates through the fan blades, the stator iron core, the magnetic steel, the heat dissipation ring and the circuit board, the heat dissipation ring is provided with a fixing device which is mutually meshed with the circuit board, and the circuit board and the heat dissipation ring are attached and fixed through the fixing device;
the position of easily generating heat on the circuit board is fixed with the heat dissipation ring in an attaching mode, and the heat to be dissipated is guided to the whole heat dissipation ring.
Preferably, the fixing means are notches and/or through holes.
Preferably, the fan blade is a low speed airfoil fan blade.
Preferably, an air guide stationary blade is arranged at the air outlet of the outer frame.
Preferably, the motor fixing device further comprises a motor front cover, a motor rear cover and a first fixing assembly, wherein the first fixing assembly comprises a clamp spring and a gasket, the outer frame is provided with a clamp groove to be fixed with the stator core, the outer frame is provided with a screw hole to enable the motor front cover, the motor rear cover and a radiating ring to be mounted through bolts, the middle shaft is fixed inside the outer frame through the motor front cover, the motor rear cover, the clamp spring and the gasket, the middle shaft is provided with a key groove and threads to be used for fixing the fan blades, the radiating ring and the circuit board are provided with holes, and the circuit board and the radiating ring are fixedly connected through the arranged holes to enable the circuit board and the radiating ring to be mutually attached and fixed;
the position of easily generating heat on the circuit board is fixed with the heat dissipation ring in an attaching mode, and the heat to be dissipated is guided to the whole heat dissipation ring. Through the arrangement of the motor rear cover, the motor front cover and the fixing assembly, the device is more stable and durable, and the service life is prolonged. Through the setting to draw-in groove and screw hole on the frame for the fixity can be better, and is fixed more firm, prevents to cause the device to damage because of jolting in the course of the work. The middle shaft is provided with a key groove and a thread fixed fan blade, and fixed parts which can be more firm are intersected and fixed in a single fixing piece. The holes are formed in the radiating ring and the circuit board, so that parts can be attached more firmly, and the holes are fixed, so that the manufacturing cost and the manufacturing difficulty can be reduced.
Preferably, still include lock nut, lock washer, magnetic steel sleeve, first ball bearing, second ball bearing, the fixed subassembly of second is the same with first fixed subassembly, lock nut and lock washer all set up in the flabellum outside, the magnetic steel sleeve is worn to be equipped with first ball bearing and second ball bearing respectively in the magnet steel surface and is set up inside stator core, centraxonial both ends are worn to be equipped with first ball bearing and second ball bearing, and be equipped with the fixed subassembly of second between axis and the circuit board. Through the design of lock nut, lock washer for the device is more firm. The two ball bearings can reduce frictional resistance. The magnetic steel sleeve can play a role in protecting the magnetic steel.
Preferably, the heat dissipation ring is fixedly connected with the rear cover of the motor. The integrated design can make the disassembly and the assembly more convenient, improve the stability,
the utility model discloses an useful part lies in:
the heat dissipation ring is provided with fixing devices such as notches and/or through holes, heating devices (such as power tubes) on the circuit board can be attached and fixed by using standard screws, and heating quantity is guided to the whole heat dissipation ring. When the fan circular telegram was moved, the air was taken away the heat from air outlet flow direction air intake through the heat dissipation ring, compares current fan structure heat-sinking capability and promotes greatly.
The fan blades adopt low-speed wing shapes, the maximum camber position can be enabled to be close to the front, the maximum lift coefficient is improved, the minimum resistance coefficient is reduced, thicker wing shapes are selected to increase the capacity and efficiency, and the noise is reduced.
The air outlet of the outer frame is provided with the air guide stationary blade, the air guide stationary blade is favorable for collecting and transmitting air quantity, and the transmitted air quantity is large and fast.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of the present invention after installation;
FIG. 3 is a front view of the present invention after installation;
fig. 4 is a side view of the present invention after installation;
FIG. 5 is a rear view of the present invention after installation;
the meaning of the reference symbols in the figures:
the structure comprises a locking nut 1, a locking gasket 2, a fan blade 3, a first fixing component 4, a motor front cover 5, a stator core 6, an outer frame 7, a magnetic steel sleeve 8, magnetic steel 9, a first ball bearing 10, a middle shaft 11, a ball bearing 12, a second fixing component 13, a circuit board 14, a radiating ring 15 and a motor rear cover 16.
Detailed Description
The invention will be further described and illustrated with reference to the following examples and figures, without restricting the invention in any way.
As shown in fig. 1 to 5, the invention discloses a large-flow high-stability direct current fan, the left end of an outer frame 7 is an air inlet, the right end of the outer frame 7 is an air outlet, the outer frame 7 can be provided with a clamping groove and fixed with a stator core 6 through the clamping groove, the outer frame 7 is provided with a screw hole, a motor front cover 5, a motor rear cover 16 and a heat dissipation ring 15 are mounted in the form of a bolt and a screw hole, two ends of a central shaft 11 penetrate through two ball bearings, namely a first ball bearing 10 and a second ball bearing 12, the central shaft 11 is fixed inside the outer frame 7 through the motor front cover 5, the motor rear cover 16 and a first fixing component 4 (namely a clamp spring and a gasket), the central shaft 11 is provided with a key groove and a thread for fixing fan blades 3, and the heat dissipation ring 15 is provided with a fixing device for fixing heating devices on a circuit board 14, such as a power tube.
For the fixing device, one of the embodiments is that the fixing device is hole fixing, the hole fixing may be that holes or a plurality of holes are both provided on the circuit board 14 and the heat dissipation ring 15, the holes on the circuit board 14 and the holes on the heat dissipation ring 15 are overlapped, and then the holes are confined and fixed by bolts or screws, or the holes are provided on the heat dissipation ring 15, and protrusions matched with the holes are provided on the circuit board 14, and the protrusions are extruded into the holes in an extruding manner.
In another embodiment, the fixing means is a notch having a protrusion for engaging with the notch, and the notch is mounted on the heat dissipating ring 15 and also mounted on the circuit board 14, and the protrusion is mounted on the circuit board 14 or the heat dissipating ring 15. The notch and the protrusion can also be in a rotatable form, for example, the notch and the protrusion are rotated after being extruded, so that the effect of preventing movement is achieved.
The fixing device can also be designed in a way that the notch and the hole are matched with each other, so that the fixing can be more complete.
The securing means may also be a screw thread, secured by the two parts being in rotational engagement with each other.
The utility model discloses during the installation, motor front cover 5 is installed between flabellum 3 and stator core 6, and be provided with first fixed subassembly 4 between the flabellum 3, and flabellum 3 also installs in the frame, stator core 6 installs to the inside of frame 7, 8 covers in magnet steel 9 surface then wholly insert to stator core 6 in, axis 11 inserts to in the magnet steel 9, and install first ball bearing 10 and second ball bearing 12 respectively at both ends, circuit board 14 is installed to the cooling ring 15 inside, simultaneously with frame 7 erection joint, centraxonial 11 both ends tip is fixed with flabellum 3 and motor backshell 16 respectively, install the fixed subassembly of second between axis 11 and the circuit board 14.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high stability direct current fan of big wind-force which characterized in that: the fan blade heat dissipation device comprises an outer frame, fan blades, a stator iron core, a heat dissipation ring, a circuit board, a central shaft and magnetic steel, wherein the outer frame comprises an air inlet and an air outlet, the stator iron core is fixedly connected with the outer frame, the heat dissipation ring is installed at the air outlet end of the outer frame, the central shaft penetrates through the fan blades, the stator iron core, the magnetic steel, the heat dissipation ring and the circuit board, the heat dissipation ring is provided with a fixing device which is mutually meshed with the circuit board, and the circuit board and the heat dissipation ring are attached and fixed through the fixing device;
the position of easily generating heat on the circuit board is fixed with the heat dissipation ring in an attaching mode, and the heat to be dissipated is guided to the whole heat dissipation ring.
2. The direct current fan with high air flow and high stability as claimed in claim 1, wherein the fan blades are low speed airfoil fan blades.
3. The high-wind-volume high-stability direct-current fan according to claim 2, wherein an air guide stationary blade is provided at the air outlet of the outer frame.
4. A high wind rate high stability dc fan according to claim 1, wherein said fixing means are notches and/or through holes.
5. The direct current fan of any one of claims 1 to 4, further comprising a motor front cover, a motor rear cover, and a first fixing assembly, wherein the first fixing assembly comprises a snap spring and a gasket, the outer frame is provided with a clamping groove and is fixed to the stator core, the outer frame is provided with a screw hole through which the motor front cover, the motor rear cover, and a heat dissipation ring can be installed, the center shaft is fixed inside the outer frame through the motor front cover, the motor rear cover, the snap spring, and the gasket, the center shaft is provided with a key groove and a thread for fixing the fan blades, the heat dissipation ring and the circuit board are provided with holes, and the heat dissipation ring and the circuit board are fixedly attached to each other through the arranged holes.
6. The large-air-volume high-stability direct-current fan according to claim 5, further comprising a locking nut, a locking gasket, a magnetic steel sleeve, a first ball bearing, a second ball bearing and a second fixing assembly, wherein the second fixing assembly is the same as the first fixing assembly, the locking nut and the locking gasket are arranged on the outer side of the fan blade, the magnetic steel sleeve is arranged on the outer surface of the magnetic steel and arranged inside the stator core, and the first ball bearing and the second ball bearing are respectively arranged at two ends of the middle shaft in a penetrating mode.
7. The high-air-volume high-stability direct-current fan according to claim 6, wherein the heat dissipation ring is fixedly connected with the motor rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222851824.2U CN218817084U (en) | 2022-10-28 | 2022-10-28 | High-wind-capacity high-stability direct-current fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222851824.2U CN218817084U (en) | 2022-10-28 | 2022-10-28 | High-wind-capacity high-stability direct-current fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218817084U true CN218817084U (en) | 2023-04-07 |
Family
ID=87246421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222851824.2U Active CN218817084U (en) | 2022-10-28 | 2022-10-28 | High-wind-capacity high-stability direct-current fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218817084U (en) |
-
2022
- 2022-10-28 CN CN202222851824.2U patent/CN218817084U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high air volume and high stability DC fan Granted publication date: 20230407 Pledgee: CHANGZHOU XIANGMING INTELLIGENT POWER CO.,LTD. Pledgor: JIANGSU JIUGAO ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2024980030602 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |