CN215521324U - Multi-air-channel cooling fan - Google Patents
Multi-air-channel cooling fan Download PDFInfo
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- CN215521324U CN215521324U CN202120735206.4U CN202120735206U CN215521324U CN 215521324 U CN215521324 U CN 215521324U CN 202120735206 U CN202120735206 U CN 202120735206U CN 215521324 U CN215521324 U CN 215521324U
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Abstract
The utility model relates to the technical field of cooling fans, in particular to a multi-air-channel cooling fan which comprises an upper shell, a lower shell, a fan motor and turbine blades, wherein an air inlet hole is formed in the center of the top surface of the upper shell, an upper half main air channel is formed in one side of the inner wall of the upper shell, an upper half auxiliary air channel is formed in the other side of the inner wall of the upper shell, and a motor fixing seat is fixedly connected to the center of the top surface of the inner wall of the lower shell. The utility model has the advantages that: when turbine fan blade rotates, the drive air current flows into the impeller wind channel, and remove in the impeller wind channel, a large amount of air currents of discharging when the air current removes the position of first air outlet, dispel the heat to main heat source, unnecessary air current continues to advance the position discharge of second air outlet and dispel the heat to vice heat source, improve the wind energy utilization ratio, the heat dissipation to two heat sources just can be accomplished to a fan simultaneously, need not add the fan, reduce the space and occupy, reduce manufacturing cost simultaneously, and the practicality is improved.
Description
Technical Field
The utility model relates to the technical field of cooling fans, in particular to a multi-air-channel cooling fan.
Background
In the age of rapid development of electronic technology, more and more electronic products need to be cooled by an air blower to ensure normal operation or prolong service life of the electronic products. Conventional blowers generally include a stator, a rotor, and upper and lower housings that mount the stator and rotor. Typically the stator comprises coils and PCBA and the rotor comprises an impeller and a magnetic ring etc.
With the development of electronic technology, many electronic products have one or two large heat sources, and if the heat sources are not forcibly radiated, the normal use or the service life of the whole product is greatly influenced or reduced along with the increase of the temperature. However, the existing cooling fan has the following defects in the situation:
the existing heat dissipation fan is mostly provided with only one air outlet, so that heat can not be dissipated to two heat sources simultaneously, meanwhile, the air flow brought out by the fan can not be completely discharged, the air flow loss is large, the efficiency is low, two heat dissipation fans are installed, the cost is high, the occupied positions are large, the space which is not abundant in the electronic equipment is further occupied, and the layout is designed again.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, provides a multi-air-channel radiating fan and effectively overcomes the defects in the prior art.
The purpose of the utility model is realized by the following technical scheme: a multi-air-channel cooling fan comprises an upper casing, a lower casing, a fan motor and turbine blades, wherein an air inlet hole is formed in the center of the top surface of the upper casing, a first main air channel is formed in one side of the inner wall of the upper casing, a first auxiliary air channel is formed in the other side of the inner wall of the upper casing, a motor fixing seat is fixedly connected to the center of the top surface of the inner wall of the lower casing, a second main air channel is formed in the position, corresponding to the first main air channel, of the inner wall of the lower casing, a second auxiliary air channel is formed in the position, corresponding to the first auxiliary air channel, of the inner wall of the lower casing, and an impeller air channel is formed by the centers of the upper casing and the lower casing.
Optionally, the upper half main air duct and the lower half main air duct jointly form a first air outlet, the upper half auxiliary air duct and the lower half auxiliary air duct jointly form a second air outlet, the width of the first air outlet is greater than that of the second air outlet, and the first air outlet and the second air outlet are both communicated with the impeller air duct.
Optionally, the fan motor passes through motor fixing base fixed connection in the center department of lower casing inner wall top surface, turbine fan blade's center department and fan motor's output fixed connection, turbine fan blade's thickness and impeller wind channel inner wall's high looks adaptation, turbine fan blade's diameter is less than the diameter of impeller wind channel inner wall, turbine fan blade's position is corresponding with the position of fresh air inlet, turbine fan blade's diameter and fresh air inlet's diameter looks adaptation.
Optionally, the depth of the inner wall of the upper half auxiliary air duct is at least half of the depth of the inner wall of the upper half main air duct, the depth of the inner wall of the upper half auxiliary air duct can be adjusted according to the heat quantity of the auxiliary heat source, the heat quantity of the heat source is large, the depth can be increased, the depth can be reduced when the heat source is small, the depths of the inner walls of the lower half main air duct and the lower half auxiliary air duct are equal, the tangent plane at the joint of the upper half main air duct and the lower half auxiliary air duct with the impeller air duct is parallel to the windward surface of any fan blade of the turbine fan blade, and the joint of the upper half main air duct and the lower half auxiliary air duct with the impeller air duct is rounded.
Optionally, one side of the joint of the upper half main air duct and the lower half main air duct with the impeller air duct is tangent to the impeller air duct, the joint of the upper half main air duct and the lower half main air duct with the impeller air duct is horn-shaped, and the joint is chamfered with a round angle, so that the round angle has a smooth effect, the resistance to air flow is reduced, and the loss is reduced.
Optionally, the edge of the bottom surface of the upper housing is provided with a docking slot extending along the edge, the edge of the top surface of the lower housing is fixedly connected with a docking flange extending along the edge, the extension shapes and sizes of the docking flange and the docking slot are all completely equal, the docking slot is inserted into the docking flange, the upper housing and the lower housing are assembled with the docking flange through the docking slot, and are inserted into the docking flange through the docking slot, so that the sealing performance is improved, meanwhile, the edge is prevented from shaking, and the structural stability is improved.
Optionally, both sides of the edge of the outer wall of the lower casing are fixedly connected with a threaded cylinder, one side of the edge of the outer wall of the upper casing is fixedly connected with an insertion lug, the position of the insertion lug corresponds to that of the threaded cylinder, the diameter of the inner wall of the insertion lug is matched with that of the inner wall of the threaded cylinder, the lower casing and the upper casing are connected in a threaded manner through the insertion lug and the threaded cylinder by using bolts to realize auxiliary fixation, and the lower casing and the upper casing can be conveniently disassembled, assembled and maintained through the bolts.
Optionally, the edge of the bottom of the outer wall of the upper shell is fixedly connected with a plurality of buckle male heads, the edge of the top of the outer wall of the lower shell is fixedly connected with a plurality of buckle female heads, the buckle male heads correspond to the buckle female heads respectively, the upper shell and the lower shell are connected in a clamping manner through the buckle male heads and the buckle female heads, the buckle male heads and the buckle female heads are connected in a clamping manner, the upper shell and the lower shell are preliminarily fixed, the quick connection and assembly can be conveniently achieved, and the bolt is fixed to achieve the purpose of assisting in reinforcing and connecting.
The utility model has the following advantages:
1. the multi-air-channel radiating fan is provided with an upper shell, a lower shell, a fan motor and turbine blades, wherein an air inlet hole is formed in the center of the top surface of the upper shell, an upper half main air channel is formed in one side of the inner wall of the upper shell, an upper half auxiliary air channel is formed in the other side of the inner wall of the upper shell, a motor fixing seat is fixedly connected to the center of the top surface of the inner wall of the lower shell, a lower half main air channel is formed in the position, corresponding to the upper half main air channel, of the inner wall of the lower shell, a lower half auxiliary air channel is formed in the position, corresponding to the upper half auxiliary air channel, of the inner wall of the lower shell, an impeller air channel is formed at the centers of the upper shell and the lower shell together, the upper half main air channel and the lower half main air channel form a first air outlet together, the upper half auxiliary air channel and the lower half auxiliary air channel form a second air outlet together, the width of the first air outlet is larger than that of the second air outlet, and the first air outlet and the second air outlet are communicated with the impeller air channel, when can make turbine flabellum rotate, it flows in the impeller wind channel to drive the air current, and remove in the impeller wind channel, a large amount of air currents of discharging when the air current removes the position of first air outlet, dispel the heat to main heat source, unnecessary air current continues to advance the position discharge of second air outlet and dispel the heat to the vice heat source, most wind-force that can make full use of turbine flabellum rotation a week like this, improve the wind energy utilization ratio, the heat dissipation to two heat sources just can be accomplished to a fan simultaneously, need not add the fan, reduce the space and occupy, reduce manufacturing cost simultaneously, and the practicability is improved.
2. The multi-air-channel radiating fan is provided with an upper half main air channel, an upper half auxiliary air channel, a lower half main air channel and a lower half auxiliary air channel, wherein the upper half main air channel and the lower half main air channel jointly form a first air outlet, the upper half auxiliary air channel and the lower half auxiliary air channel jointly form a second air outlet, the depth of the inner wall of the upper half auxiliary air channel is at least half of that of the inner wall of the upper half main air channel, the depth of the inner wall of the lower half main air channel is equal to that of the inner wall of the lower half auxiliary air channel, the tangent plane of the joint of the upper half main air channel and the lower half auxiliary air channel with the impeller air channel is parallel to the windward surface of any fan blade of a turbine fan blade, the joint of the upper half main air channel and the lower half auxiliary air channel with the impeller air channel is rounded, one side of the joint of the upper half main air channel and the lower half main air channel with the impeller air channel is tangent to the impeller air channel, the joint of the upper half main air channel and the lower half main air channel with the impeller air channel is in a horn shape, and the joint is rounded angle, the size of the upper half auxiliary air duct is reduced, so that the air flow occupation of the main air duct can be reduced, meanwhile, the tangent plane at the joint of the upper half main air duct and the lower half auxiliary air duct with the impeller air duct is parallel to the windward surface of any fan blade of the turbine fan blade, can receive the wind power brought by the section of the stroke that the turbine fan blade rotates from the first air outlet to the second air outlet to the maximum extent, improve the wind power utilization rate, the joint of the upper half main air duct and the lower half main air duct with the impeller air duct is in a trumpet shape, and the joint is chamfered with a round angle, make and fail smooth reposition of redundant personnel of timely combustion air current in fillet department at first air outlet, reduce the air current friction loss, some air current of branch can be discharged by first air outlet gradually through the inclined plane of horn-shaped structure, and another wind-force is discharged to the second air outlet by the impeller wind channel continuation marching to improve the utilization ratio of wind-force, it is extravagant to reduce wind-force.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of the structural assembly of the present invention;
in the figure: 1-upper casing, 2-lower casing, 3-fan motor, 4-turbine fan blades, 5-upper half main air duct, 6-upper half auxiliary air duct, 7-lower half main air duct, 8-lower half auxiliary air duct, 9-butt flange, 10-butt slot, 11-butt lug, 12-threaded cylinder, 13-motor fixing seat, 14-air inlet hole, 15-impeller air duct, 16-first air outlet, 17-second air outlet, 18-buckle male head and 19-buckle female head.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.
As shown in fig. 1 to 2, a multi-duct heat dissipation fan includes an upper housing 1, a lower housing 2, a fan motor 3 and turbine blades 4, an air inlet 14 is provided at the center of the top surface of the upper housing 1, a first main duct 5 is provided at one side of the inner wall of the upper housing 1, a first auxiliary duct 6 is provided at the other side of the inner wall of the upper housing 1, a motor fixing seat 13 is fixedly connected to the center of the top surface of the inner wall of the lower housing 2, a second main duct 7 is provided at a position of the inner wall of the lower housing 2 corresponding to the first main duct 5, a second auxiliary duct 8 is provided at a position of the inner wall of the lower housing 2 corresponding to the first auxiliary duct 6, and an impeller duct 15 is formed at the centers of the upper housing 1 and the lower housing 2.
As an optional technical scheme of the utility model: first air outlet 16 is formed by upper half main air duct 5 and lower half main air duct 7 together, second air outlet 17 is formed by upper half auxiliary air duct 6 and lower half auxiliary air duct 8 together, the width of first air outlet 16 is greater than the width of second air outlet 17, first air outlet 16 and second air outlet 17 are all communicated with impeller air duct 15, through two air outlets, when making turbine fan blade 4 rotate, drive the air current and flow into impeller air duct 15, and remove in impeller air duct 15, discharge a large amount of air current when the air current moves to the position of first air outlet 16, dispel the heat to the main heat source, unnecessary air current continues to advance to the position of second air outlet 17 and discharges to the auxiliary heat source and dispel the heat, can make full use of turbine fan blade 4 rotate most wind-force of a week like this, improve the wind energy utilization ratio.
As an optional technical scheme of the utility model: the fan motor 3 is fixedly connected to the center of the top surface of the inner wall of the lower casing 2 through the motor fixing seat 13, the center of the turbine fan blade 4 is fixedly connected with the output end of the fan motor 3, the thickness of the turbine fan blade 4 is matched with the height of the inner wall of the impeller air duct 15, the diameter of the turbine fan blade 4 is smaller than that of the inner wall of the impeller air duct 15, the position of the turbine fan blade 4 corresponds to the position of the air inlet hole 14, the diameter of the turbine fan blade 4 is matched with that of the air inlet hole 14, the maximum air inlet area of the turbine fan blade 4 is matched with the air inlet hole 14, the proportion of air flow flowing out from the gap between the air inlet hole 14 and the turbine fan blade 4 can be reduced, and the wind power waste is reduced.
As an optional technical scheme of the utility model: the depth of the inner wall of the upper half auxiliary air duct 6 is at least half of that of the inner wall of the upper half main air duct 5, the depth of the inner wall of the lower half main air duct 7 is equal to that of the inner wall of the lower half auxiliary air duct 8, the tangent plane of the joint of the upper half main air duct 5 and the lower half auxiliary air duct 8 with the impeller air duct 15 is parallel to the windward side of any fan blade of the turbine fan blade 4, the butt joint of the upper half main air duct 5 and the lower half auxiliary air duct 8 with the impeller air duct 15 is rounded off, wind power brought by the section of the stroke that the turbine fan blade 4 rotates from the first air outlet 16 to the second air outlet 17 can be received to the greatest extent, and the wind power utilization rate is improved.
As an optional technical scheme of the utility model: one side of the joint of the upper main air duct 5 and the lower main air duct 7 with the impeller air duct 15 is tangent to the impeller air duct 15, the joint of the upper main air duct 5 and the lower main air duct 7 with the impeller air duct 15 is horn-shaped, and the joint is chamfered with a round angle, so that air flow discharged from the first air outlet 16 cannot be smoothly split at the round angle, the air flow friction loss is reduced, a part of the split air flow can be gradually discharged from the first air outlet 16 through the inclined plane of the horn-shaped structure, and the other part of the wind power is continuously discharged from the impeller air duct 15 to the second air outlet 17, thereby improving the utilization rate of the wind power and reducing the wind power waste.
As an optional technical scheme of the utility model: the edge of the bottom surface of the upper casing 1 is provided with a butt joint slot 10 extending along the edge, the edge of the top surface of the lower casing 2 is fixedly connected with a butt joint flange 9 extending along the edge, the extending shapes and sizes of the butt joint flange 9 and the butt joint slot 10 are completely equal, the butt joint slot 10 is spliced with the butt joint flange 9, the upper casing and the lower casing 2 are spliced with the butt joint flange 9 through the butt joint slot 10, through the butt joint of the butt joint flange 9 and the butt joint slot 10, the edge sealing of the upper casing 1 and the lower casing 2 can be improved, the leakage of air flow from gaps is reduced, the wind energy utilization rate is improved, and the wind power waste is reduced.
As an optional technical scheme of the utility model: the equal fixedly connected with screw thread section of thick bamboo 12 in both sides of 2 outer wall edges of lower casing, one side fixedly connected with of 1 outer wall edge of upper casing inserts the ear 11, the position of inserting the ear 11 corresponds with the position of screw thread section of thick bamboo 12, the diameter of inserting the ear 11 inner wall and the diameter looks adaptation of the 12 inner walls of screw thread section of thick bamboo, lower casing 2 and upper casing 1 use the bolt to pass and insert ear 11 and realize supplementary fixed with the screw thread section of thick bamboo 12 threaded connection, screw thread section of thick bamboo 12 length and the thickness sum of inserting the ear 11 equals the thickness sum of lower casing 2 and upper casing 1, can make the upper and lower surface parallel and level not salient like this, conveniently put flat installation, connecting bolt's length is no longer than screw thread section of thick bamboo 12 length and the thickness sum of inserting the ear 11 simultaneously, make the bolt can twist screw thread section of thick bamboo 12 completely, make both ends not salient.
As an optional technical scheme of the utility model: public head 18 of a plurality of buckles of edge fixedly connected with of 1 outer wall bottom of upper casing, the female head 19 of a plurality of buckles of edge department fixedly connected with at 2 outer wall tops of lower casing, public head 18 of a plurality of buckles is corresponding with the position of the female head 19 of a plurality of buckles respectively, it is fixed with the female head 19 realization joint of a plurality of buckles that upper casing 1 and lower casing 2 pass through public head 18 of a plurality of buckles, the preliminary fixed of upper casing 1 and lower casing 2 is realized with the female first 19 joint of a plurality of buckles to public head 18 of a plurality of buckles, can make things convenient for the high-speed joint to assemble like this, and bolt fastening's fixed purpose of playing supplementary reinforcement and connection.
The working process of the utility model is as follows:
1) the fan motor 3 drives the turbine fan blade 4 to rotate, and air flow is sucked from the air inlet hole 14;
2) the airflow surrounds the impeller air duct 15 and moves annularly along the rotation direction of the turbine fan blades 4, most of the airflow is discharged after the airflow reaches the positions of the upper half main air duct 5 and the lower half main air duct 7, the airflow is conveyed to a main heat source by the first air outlet 16 for heat dissipation, the airflow which cannot be discharged in time is split at the joint of the upper half main air duct 5 and the lower half main air duct 7 with the impeller air duct 15, a part of the separated airflow is gradually discharged from the first air outlet 16 through the inclined plane of the horn-shaped structure, and the other part of wind power is continuously forwarded to the second air outlet 17 by the impeller air duct 15 for discharge;
3) and the air flow discharged from the second air outlet 17 dissipates heat of the auxiliary heat source.
In conclusion, when the user used, through having set up upper casing 1, lower casing 2, fan motor 3 and turbine fan blade 4, its characterized in that: an air inlet 14 is arranged at the center of the top surface of the upper casing 1, an upper half main air duct 5 is arranged at one side of the inner wall of the upper casing 1, an upper half auxiliary air duct 6 is arranged at the other side of the inner wall of the upper casing 1, a motor fixing seat 13 is fixedly connected at the center of the inner wall of the lower casing 2, a lower half main air duct 7 is arranged at the position of the inner wall of the lower casing 2 corresponding to the upper half main air duct 5, a lower half auxiliary air duct 8 is arranged at the position of the inner wall of the lower casing 2 corresponding to the upper half auxiliary air duct 6, an impeller air duct 15 is jointly formed at the centers of the upper casing 1 and the lower casing 2, a first air outlet 16 is jointly formed by the upper half main air duct 5 and the lower half main air duct 7, a second air outlet 17 is jointly formed by the upper half auxiliary air duct 6 and the lower half auxiliary air duct 8, the width of the first air outlet 16 is larger than that of the second air outlet 17, the first air outlet 16 and the second air outlet 17 are both communicated with the impeller air duct 15, so that when the turbine fan blades 4 rotate, the air flow is driven to flow into the impeller air duct 15 and move in the impeller air duct 15, when the air flow moves to the position of the first air outlet 16, a large amount of air flow is discharged to dissipate heat of the main heat source, redundant air flow continues to advance to the position of the second air outlet 17 and is discharged to the auxiliary heat source to dissipate heat, thus most of wind power of one circle of the rotation of the turbine fan blade 4 can be fully utilized, the wind energy utilization rate is improved, simultaneously, the heat dissipation of two heat sources can be completed by one fan, no fan is needed to be added, the space occupation is reduced, the manufacturing cost is reduced, the practicability is improved, then, the first air duct 5, the upper auxiliary air duct 6, the lower main air duct 7 and the lower auxiliary air duct 8 are arranged, the first air outlet 16 is formed by the upper main air duct 5 and the lower main air duct 7 together, the second air outlet 17 is formed by the upper auxiliary air duct 6 and the lower auxiliary air duct 8 together, the depth of the inner wall of the upper auxiliary air duct 6 is at least half of the depth of the inner wall of the upper main air duct 5, the depths of the inner walls of the lower half main air duct 7 and the lower half auxiliary air duct 8 are equal, the tangent plane of the joint of the upper half main air duct 5 and the lower half auxiliary air duct 8 with the impeller air duct 15 is parallel to the windward surface of any fan blade of the turbine fan blade 4, the joint of the upper half main air duct 5 and the lower half auxiliary air duct 8 with the impeller air duct 15 is rounded, one side of the joint of the upper half main air duct 5 and the lower half main air duct 7 with the impeller air duct 15 is tangent to the impeller air duct 15, the joint of the upper half main air duct 5 and the lower half main air duct 7 with the impeller air duct 15 is in a horn shape, and the fillet is rounded at the joint, through the design of reducing the size of the upper half auxiliary air duct 6, the occupation of the air flow of the main air duct can be reduced, the tangent plane of the joint of the upper half main air duct 5 and the lower half auxiliary air duct 8 with the impeller air duct 15 is parallel to the windward surface of any turbine fan blade 4, and the wind force caused by the section of the rotation of the turbine fan blade 4 from the first air outlet 16 to the second air outlet 17 can be received to the maximum degree, the wind power utilization rate is improved, the connection part of the upper half main air duct 5 and the lower half main air duct 7 and the impeller air duct 15 is in a horn shape, and the connection part is provided with a round angle, so that the air flow which cannot be discharged at the first air outlet 16 can not be smoothly distributed at the round angle in time, the air flow friction loss is reduced, one part of the distributed air flow can be gradually discharged from the first air outlet 16 through the inclined plane of the horn-shaped structure, the other part of the wind power is continuously discharged to the second air outlet 17 through the impeller air duct 15, the wind power utilization rate is improved, and the wind power waste is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a many wind channels radiator fan, includes upper casing (1), lower casing (2), fan motor (3) and turbine fan blade (4), its characterized in that: the utility model discloses a fan, including upper housing (1), upper housing (2), lower housing (2), upper housing (1) and lower housing (2), the central department of upper housing (1) top surface has seted up fresh air inlet (14), first main wind channel (5) have been seted up to one side of upper housing (1) inner wall, first auxiliary wind channel (6) have been seted up to upper housing (1) inner wall opposite side, fixedly connected with motor fixing base (13) are located at the center of lower housing (2) inner wall top surface, lower main wind channel (7) have been seted up to the position that lower housing (2) inner wall and first main wind channel (5) correspond, lower auxiliary wind channel (8) have been seted up to the position that lower housing (2) inner wall and first auxiliary wind channel (6) correspond, upper housing (1) and the central department of lower housing (2) constitute impeller wind channel (15) jointly.
2. The multi-duct heat dissipation fan of claim 1, wherein: the upper half main air duct (5) and the lower half main air duct (7) jointly form a first air outlet (16), the upper half auxiliary air duct (6) and the lower half auxiliary air duct (8) jointly form a second air outlet (17), the width of the first air outlet (16) is larger than that of the second air outlet (17), and the first air outlet (16) and the second air outlet (17) are communicated with the impeller air duct (15).
3. The multi-duct heat dissipation fan of claim 1, wherein: fan motor (3) are located through the center of motor fixing base (13) fixed connection in lower casing (2) inner wall top surface, the center of turbine fan blade (4) is located and is connected with the output fixed connection of fan motor (3), the thickness of turbine fan blade (4) and the high looks adaptation of impeller wind channel (15) inner wall, the diameter of turbine fan blade (4) is less than the diameter of impeller wind channel (15) inner wall, the position of turbine fan blade (4) is corresponding with the position of fresh air inlet (14), the diameter of turbine fan blade (4) and the diameter looks adaptation of fresh air inlet (14).
4. The multi-duct heat dissipation fan of claim 1, wherein: the depth of the inner wall of the upper half auxiliary air duct (6) is at least half of the depth of the inner wall of the upper half main air duct (5), the depth of the inner wall of the lower half main air duct (7) is equal to that of the inner wall of the lower half auxiliary air duct (8), the tangent plane of the joint of the upper half main air duct (5) and the lower half auxiliary air duct (8) with the impeller air duct (15) is parallel to the windward surface of any fan blade of the turbine fan blade (4), and the butt joint of the upper half main air duct (5) and the lower half auxiliary air duct (8) with the impeller air duct (15) is rounded.
5. The multi-duct heat dissipation fan of claim 1, wherein: one side of the joint of the upper half main air duct (5) and the lower half main air duct (7) with the impeller air duct (15) is tangent to the impeller air duct (15), the joint of the upper half main air duct (5) and the lower half main air duct (7) with the impeller air duct (15) is in a horn shape, and fillets are formed at the joint.
6. The multi-duct heat dissipation fan of claim 1, wherein: the edge of the bottom surface of the upper casing (1) is provided with a butt joint slot (10) extending along the edge, the edge of the top surface of the lower casing (2) is fixedly connected with a butt joint flange (9) extending along the edge, the extending shapes and sizes of the butt joint flange (9) and the butt joint slot (10) are completely equal, the butt joint slot (10) is spliced with the butt joint flange (9), and the upper casing and the lower casing (2) are spliced with the butt joint flange (9) through the butt joint slot (10).
7. The multi-duct heat dissipation fan of claim 1, wherein: the improved structure of the screw-thread connecting device is characterized in that threaded cylinders (12) are fixedly connected to two sides of the edge of the outer wall of the lower casing (2), inserting lugs (11) are fixedly connected to one side of the edge of the outer wall of the upper casing (1), the positions of the inserting lugs (11) correspond to those of the threaded cylinders (12), the diameters of the inner walls of the inserting lugs (11) are matched with those of the inner wall of the threaded cylinders (12), and the lower casing (2) and the upper casing (1) are connected in a threaded mode through the inserting lugs (11) and the threaded cylinders (12) by bolts to achieve auxiliary fixing.
8. The multi-duct heat dissipation fan of claim 1, wherein: public head (18) of edge fixedly connected with a plurality of buckles of upper housing (1) outer wall bottom, the female head (19) of edge department fixedly connected with a plurality of buckles of outer wall top of lower housing (2) are a plurality of public head (18) of buckle are corresponding with the position of the female head (19) of a plurality of buckles respectively, upper housing (1) is through a plurality of with lower housing (2) public head (18) of buckle and the female head (19) of a plurality of buckles realize that the joint is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120735206.4U CN215521324U (en) | 2021-04-12 | 2021-04-12 | Multi-air-channel cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120735206.4U CN215521324U (en) | 2021-04-12 | 2021-04-12 | Multi-air-channel cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215521324U true CN215521324U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120735206.4U Active CN215521324U (en) | 2021-04-12 | 2021-04-12 | Multi-air-channel cooling fan |
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| Country | Link |
|---|---|
| CN (1) | CN215521324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111171A (en) * | 2022-05-27 | 2022-09-27 | 深圳市毅荣川电子科技有限公司 | High-efficiency energy-saving turbine cooling fan |
-
2021
- 2021-04-12 CN CN202120735206.4U patent/CN215521324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111171A (en) * | 2022-05-27 | 2022-09-27 | 深圳市毅荣川电子科技有限公司 | High-efficiency energy-saving turbine cooling fan |
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