CN214196709U - Heat radiation centrifugal fan - Google Patents
Heat radiation centrifugal fan Download PDFInfo
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- CN214196709U CN214196709U CN202022932072.3U CN202022932072U CN214196709U CN 214196709 U CN214196709 U CN 214196709U CN 202022932072 U CN202022932072 U CN 202022932072U CN 214196709 U CN214196709 U CN 214196709U
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- inner sleeve
- motor
- outer sleeve
- sleeve
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Abstract
The application discloses heat dissipation centrifugal fan includes: the fan body is provided with a motor which is arranged on the outer side of the fan body; the flow guide assembly comprises an outer sleeve and an inner sleeve coaxially arranged in the outer sleeve, the outer sleeve and the inner sleeve are respectively provided with an opening end and a closed end, the inner sleeve is covered on the motor, a gap is reserved between the opening end of the inner sleeve and the fan body, the opening end of the outer sleeve is installed on the fan body, the closed end of the outer sleeve is provided with an air outlet and an air guide opening, the closed end of the inner sleeve is provided with an air inlet, and the air inlet pipeline is connected to the air guide opening; and the impeller is rotatably arranged on the inner side of the closed end of the inner sleeve and aligned to the open end of the inner sleeve, the air inlet is aligned to the impeller, and the motor is in transmission connection with the impeller. The utility model provides a current centrifugal fan's the problem that the motor radiating efficiency is low.
Description
Technical Field
The utility model relates to a centrifugal fan, concretely relates to heat dissipation centrifugal fan.
Background
The centrifugal fan is composed of a casing, a main shaft, an impeller, a bearing transmission mechanism, a motor and the like, however, the motor in the existing centrifugal fan is generally exposed outside, and generally radiates heat through natural cooling, so that the radiating efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, a heat dissipation centrifugal fan is provided so as to solve the problem that the motor heat dissipation efficiency of the existing centrifugal fan is low.
In order to achieve the above object, there is provided a heat dissipation centrifugal fan, comprising:
the fan body is provided with a motor which is arranged on the outer side of the fan body;
the flow guide assembly comprises an outer sleeve and an inner sleeve coaxially arranged in the outer sleeve, the outer sleeve and the inner sleeve are respectively provided with an opening end and a closed end, the inner sleeve is covered on the motor, a gap is reserved between the opening end of the inner sleeve and the fan body, the opening end of the outer sleeve is installed on the fan body, the closed end of the outer sleeve is provided with an air outlet and an air guide opening, the closed end of the inner sleeve is provided with an air inlet, and the air inlet pipeline is connected to the air guide opening; and
the impeller is rotatably installed on the inner side of the closed end of the inner sleeve and aligned to the open end of the inner sleeve, the air inlet is aligned to the impeller, and the motor is in transmission connection with the impeller.
Further, the motor is erected in the inner sleeve and is coaxially arranged with the inner sleeve.
Further, still including set up in cooling tube in the inner skleeve, the cooling tube surround in the motor, the liquid reserve tank that is used for the holding coolant liquid is installed to the below of outer skleeve, the transfer pump is installed to the liquid reserve tank, the inlet end of cooling tube connect in the transfer pump, the flowing back end of coolant liquid communicate in the liquid reserve tank.
Further, the motor is connected to the impeller through a gear assembly, and the gear assembly includes:
the incomplete gear is coaxially connected to the output end of the motor;
a driven gear coaxially connected to the impeller; and
the rotating shaft is arranged in the same direction as the output end of the motor and is rotatably arranged between the inner wall of the closed end of the inner sleeve and the fan body, transmission gears are coaxially arranged at two ends of the rotating shaft respectively, the transmission gear at one end of the rotating shaft is meshed with the incomplete gear, and the transmission gear at the other end of the rotating shaft is meshed with the driven gear.
Further, the open end of the outer sleeve extends towards the inner side of the outer sleeve to form a flange plate, and one side of the flange plate, which is close to the closed end of the outer sleeve, forms an arc-shaped flow guide surface.
The beneficial effects of the utility model reside in that, the utility model discloses a heat dissipation centrifugal fan utilizes outer sleeve and inner skleeve to constitute the circulation passageway of an air current. The motor drives the impeller to rotate, the impeller sucks external cold air flow into the inner sleeve through the air guide opening and the air inlet, the external cold air flow is blown to the motor, after the heat of the motor is taken away by the cold air flow, the cold air flow is poured into the space between the outer sleeve and the inner sleeve through the gap between the inner sleeve and the fan body and is exhausted to the outside through the air outlet, the circulation is carried out, the heat energy of the motor is taken away by the external cold air flow to cool the motor, the heat dissipation efficiency of the motor of the fan body is improved, and the motor can run for a long time.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a centrifugal fan for heat dissipation according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the centrifugal fan for heat dissipation of the embodiment of the present invention.
Fig. 3 is a schematic view of a connection node between an incomplete gear and a transmission gear according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is the utility model discloses heat dissipation centrifugal fan's structural schematic diagram, fig. 2 are the utility model discloses heat dissipation centrifugal fan's cross-sectional view, fig. 3 are the utility model discloses incomplete gear and drive gear's connected node schematic diagram is an embodiment.
Referring to fig. 1 to 3, the utility model provides a heat dissipation centrifugal fan, include: the fan comprises a fan body 1, a flow guide assembly 2 and an impeller 3.
In this embodiment, the fan body 1 is a centrifugal fan. The motor 11 of the fan body 1 is mounted on the outer side of the fan body 1.
The flow directing assembly 2 comprises an outer sleeve 21 and an inner sleeve 22.
The inner sleeve 22 is coaxially disposed within the outer sleeve 21. A buttress is arranged in the outer sleeve and supported at the bottom of the inner sleeve. The outer sleeve 21 and the inner sleeve 22 have an open end and a closed end, respectively. The open ends of the outer and inner sleeves 21, 22 are oriented in unison and are both disposed toward the blower body.
An inner sleeve 22 houses the motor 11. The bottom of motor is installed the stabilizer blade, the stabilizer blade set up in on the bottom inner wall of inner skleeve.
A gap is reserved between the opening end of the inner sleeve 22 and the blower body 1. The open end of the outer sleeve 21 is mounted on the blower body 1. In this embodiment, the open end of the outer sleeve extends towards the outside to form a connecting flange, and the connecting flange plate is mounted on the side wall of the fan body through a bolt. The closed end of the outer sleeve 21 is provided with an air outlet a and an air guide opening b. The closed end of the inner sleeve 22 is provided with an air inlet. The air inlet pipeline of the inner sleeve 22 is connected to the air guiding opening b.
The impeller 3 is rotatably arranged at the inner side of the closed end of the inner sleeve 22 and aligned with the open end of the inner sleeve 22, the air inlet is aligned with the impeller 3, and the motor 11 is in transmission connection with the impeller 3.
The utility model discloses a heat dissipation centrifugal fan's heat dissipation principle:
the outer sleeve and the inner sleeve form a gas flow communication channel. The motor drives the impeller to rotate, the impeller sucks external cold air flow into the inner sleeve through the air guide opening and the air inlet, the external cold air flow is blown to the motor, after the heat of the motor is taken away by the cold air flow, the cold air flow is poured into the space between the outer sleeve and the inner sleeve through the gap between the inner sleeve and the fan body and is exhausted to the outside through the air outlet, the circulation is carried out, the heat energy of the motor is taken away by the external cold air flow to cool the motor, the heat dissipation efficiency of the motor of the fan body is improved, and the motor can run for a long time.
In the present embodiment, the motor 11 is provided in the inner sleeve 22 through a spider and is disposed coaxially with the inner sleeve 22. The utility model discloses a heat dissipation centrifugal fan is still including setting up cooling tube 4 in inner skleeve 22. The cooling tube has a liquid inlet end and a liquid outlet end. The cooling pipe 4 is surrounded at its center portion around the outside of the motor 11. A reservoir tank 41 is mounted below the outer sleeve 21. The liquid storage tank 41 contains a cooling liquid therein. The liquid storage tank 41 is equipped with an infusion pump 42. The inlet end of the cooling tube 4 is connected to an infusion pump 42. The drain end of the coolant is communicated with the reservoir tank 41.
When the motor runs, the infusion pump is started, the infusion pump pumps the cooling liquid source into the cooling pipe continuously through the liquid inlet end of the cooling pipe, and the cooling liquid is discharged to the liquid storage tank through the liquid discharge end of the cooling pipe. For continuous low temperature of the cooling liquid, a refrigerator is installed in the liquid storage tank to maintain the temperature of the cooling liquid. After the cooling pipe pumps the cooling liquid, the cooling pipe absorbs heat around the motor, and the temperature of the motor is further reduced.
In this embodiment, the cooling liquid may be clear water at 0-10 deg.C or other liquid with good fluidity. The cooling pipe can be a pipe material with good cold conducting performance, such as an iron pipe or a glass pipe.
In this embodiment, the motor 11 is drivingly connected to the impeller 3 via a gear assembly 5. Specifically, the gear assembly 5 includes: a partial gear 51, a driven gear 52, a rotating shaft 53 and a transmission gear 54.
The partial gear 51 is coaxially connected to the output of the motor 11. The driven gear 52 is coaxially connected to the impeller 3. The rotation shaft 53 is provided in the same direction as the output end of the motor 11. The rotary shaft 53 is rotatably installed between the inner wall of the closed end of the inner sleeve 22 and the blower body 1. Two ends of the rotating shaft 53 are respectively and coaxially provided with a transmission gear 54. The transmission gear 54 at one end of the rotating shaft 53 is meshed with the incomplete gear 51, and the transmission gear 54 at the other end of the rotating shaft 53 is meshed with the driven gear 52.
In this embodiment, the impeller is connected to a rotating shaft which is rotatably mounted on the inside wall of the closed end of the inner sleeve. A transmission gear is installed between the transmission gear 54 and the driven gear 52 at the other end of the rotation shaft 53, and both sides of the transmission gear are engaged with the driven gear and the transmission gear, respectively.
To guide the flow of the air stream, the open end of the outer sleeve 21 extends toward the inside of the outer sleeve 21 to form a flange plate 211. The side of the flange plate 211 adjacent the closed end of the outer sleeve 21 forms an arcuate deflector surface. In the present embodiment, the flow path of the air flow in the flow-turning passage is shown by solid arrows in fig. 2.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (5)
1. The utility model provides a heat dissipation centrifugal fan which characterized in that includes:
the fan body is provided with a motor which is arranged on the outer side of the fan body;
the flow guide assembly comprises an outer sleeve and an inner sleeve coaxially arranged in the outer sleeve, the outer sleeve and the inner sleeve are respectively provided with an opening end and a closed end, the inner sleeve is covered on the motor, a gap is reserved between the opening end of the inner sleeve and the fan body, the opening end of the outer sleeve is installed on the fan body, the closed end of the outer sleeve is provided with an air outlet and an air guide opening, the closed end of the inner sleeve is provided with an air inlet, and the air inlet pipeline is connected to the air guide opening; and
the impeller is rotatably installed on the inner side of the closed end of the inner sleeve and aligned to the open end of the inner sleeve, the air inlet is aligned to the impeller, and the motor is in transmission connection with the impeller.
2. The heat-dissipating centrifugal fan of claim 1 wherein the motor is supported in the inner sleeve by legs and is disposed coaxially with the inner sleeve.
3. The heat dissipation centrifugal fan of claim 2, further comprising a cooling pipe disposed in the inner sleeve, the cooling pipe surrounding the motor, a liquid storage tank for containing cooling liquid being installed below the outer sleeve, an infusion pump being installed in the liquid storage tank, a liquid inlet end of the cooling pipe being connected to the infusion pump, and a liquid outlet end of the cooling liquid being communicated to the liquid storage tank.
4. The heat-dissipating centrifugal fan of claim 1 wherein the motor is drivingly connected to the impeller by a gear assembly, the gear assembly comprising:
the incomplete gear is coaxially connected to the output end of the motor;
a driven gear coaxially connected to the impeller; and
the rotating shaft is arranged in the same direction as the output end of the motor and is rotatably arranged between the inner wall of the closed end of the inner sleeve and the fan body, transmission gears are coaxially arranged at two ends of the rotating shaft respectively, the transmission gear at one end of the rotating shaft is meshed with the incomplete gear, and the transmission gear at the other end of the rotating shaft is meshed with the driven gear.
5. The heat-dissipating centrifugal fan of claim 1 wherein the open end of the outer sleeve extends toward the inside of the outer sleeve to form a flange plate, the side of the flange plate adjacent to the closed end of the outer sleeve forming an arcuate flow guide surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022932072.3U CN214196709U (en) | 2020-12-07 | 2020-12-07 | Heat radiation centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022932072.3U CN214196709U (en) | 2020-12-07 | 2020-12-07 | Heat radiation centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214196709U true CN214196709U (en) | 2021-09-14 |
Family
ID=77650595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022932072.3U Active CN214196709U (en) | 2020-12-07 | 2020-12-07 | Heat radiation centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214196709U (en) |
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2020
- 2020-12-07 CN CN202022932072.3U patent/CN214196709U/en active Active
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