CN219388243U

CN219388243U - Heat-resistant fan

Info

Publication number: CN219388243U
Application number: CN202223054177.9U
Authority: CN
Inventors: 王伟; 刘渊
Original assignee: Rosenberg Ventilations & Energy Systems Shanghai Co ltd
Current assignee: Rosenberg Ventilations & Energy Systems Shanghai Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-07-21
Anticipated expiration: 2032-11-17

Abstract

The utility model discloses a heat-resistant fan, which comprises a motor and an impeller sleeved and fixed on the front end of a rotating shaft of the motor, wherein the front end of the rotating shaft extends out of a shell of the motor, a mounting plate fixedly connected with the shell is arranged between the shell and the impeller, an axial-flow cooling fan sleeved and fixed on the rotating shaft is arranged between the shell and the mounting plate, the cooling fan is provided with an air duct surrounding the periphery of a fan blade, a water cooling disc is fixedly arranged at the front end of the shell and connected with the rotating shaft through a bearing, a water inlet and a water outlet are formed in the water cooling disc, a water cooling flow passage communicated with the water inlet and the water outlet is formed in the water cooling disc, air cooling and water cooling of the rotating shaft are realized, the water cooling disc is positioned at the air inlet end of the cooling fan, the temperature of air flow sucked by the cooling fan is reduced, and the cooling effect of air cooling is further improved.

Description

Heat-resistant fan

Technical Field

The utility model relates to the technical field of fans, in particular to a heat-resistant fan.

Background

In the existing many types of ovens, in order to make the heat that produces evenly in the box respectively, generally use heat-resistant fan to match in the oven, stretch into the box with heat-resistant fan's impeller, and heat-resistant fan's motor is located outside the box, and the impeller cover is fixed in the front end of motor shaft, through motor drive rotation, makes the hot air flow in the box flow fast under the drive of impeller, realizes the even effect of heat distribution in the box.

However, because the motor and the impeller are both metal products, and the temperature in the box body is higher, heat in the box body can be conducted into the motor through the motor rotating shaft, the motor is easy to burn, and the service life of the motor is influenced.

Disclosure of Invention

The utility model aims to provide a heat-resistant fan, which solves the problem that in the prior art, the service life is influenced by the integral heating of a motor due to the fact that a motor rotating shaft stretches into a high-temperature environment.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a heat-resisting fan, includes the motor and overlaps to be fixed impeller on the motor shaft front end, the shaft front end extends the casing of motor, the casing with be equipped with between the impeller with casing fixed connection's mounting panel, the casing with be equipped with the cover between the mounting panel and be fixed in epaxial axial fan that flows of pivot, fan has and encloses the air duct of establishing at the fan blade periphery.

As a further scheme of the utility model: the tail ends of the fan blades are provided with folded edges which are outwards turned towards one end of the motor shell.

As a further scheme of the utility model: the cylinder wall of the rear end of the air duct is bent outwards.

As a further scheme of the utility model: the water cooling disc is fixedly arranged at the front end of the shell and is connected with the rotating shaft through a bearing, a water inlet and a water outlet are formed in the water cooling disc, and a water cooling flow passage communicated with the water inlet and the water outlet is formed in the water cooling disc.

As a further scheme of the utility model: the water cooling flow passage comprises a plurality of annular passages which are distributed at intervals along the radial direction, each annular passage is provided with a water inlet end and a water outlet end which are separated, a plurality of water inlet ends are communicated with the water inlet through water inlet holes, and a plurality of water outlet ends are communicated with the water outlet through water outlet holes.

As a further scheme of the utility model: and a plurality of annular channels are concentrically arranged.

As a further scheme of the utility model: the water inlet and the water outlet are both arranged on the peripheral surface of the water cooling disc.

As a further scheme of the utility model: the mounting plate is fixed on the water-cooled disc through a connecting cover.

The utility model has the beneficial effects that: the application carries out forced air cooling through setting up axial fan and air duct to the pivot, still sets up the water-cooled dish simultaneously and carries out water-cooling to the pivot, and the water-cooled dish is established at radiator fan's air inlet end, reduces radiator fan's the temperature of inhaled air current, further improves the cooling effect of forced air cooling.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view of a water-cooled disk of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model discloses a heat-resistant fan, which comprises a motor 1 and an impeller 2 sleeved and fixed on the front end of a rotating shaft 11 of the motor 1, wherein the front end of the rotating shaft 11 extends out of a shell 12 of the motor 1, a mounting plate 3 fixedly connected with the shell 12 is arranged between the shell 12 and the impeller 2, and the heat-resistant motor 1 in the embodiment can be arranged on a drying oven (not shown), so that the hot air flow distribution in the drying oven is more uniform. Specifically when using, erect motor 1 in the oven top, make mounting panel 3 paste through the bolt fastening between the upper surface of oven and oven, motor 1's pivot 11 extends motor 1 casing 12 and runs through mounting panel 3 and oven roof in proper order and extend to in the oven, impeller 2 is located the oven and overlaps the front end of fixing at pivot 11, and motor 1 drives impeller 2 through rotating pivot 11 and rotates.

The axial-flow cooling fan 4 sleeved and fixed on the rotating shaft 11 is arranged between the shell 12 and the mounting plate 3, the cooling fan 4 comprises a shaft sleeve 41 sleeved and fixed on the rotating shaft 11, fan blades 42 circumferentially arranged on the shaft sleeve 41 at intervals and air guide cylinders 5 circumferentially arranged on the outer periphery of the fan blades 42, the air guide cylinders 5 are cylinders with two open ends, the air guide cylinders 5 and the rotating shaft 11 are concentrically arranged, certain intervals are reserved between the two ends of the air guide cylinders 5 and the shell 12 and the mounting plate 3, when the motor 1 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the cooling fan 4 to synchronously rotate, external air flow is sucked from the rear port of the air guide cylinders 5 and blown out from the front port of the air guide cylinders 5, and air cooling is carried out on the rotating shaft 11.

The air duct 5 is fixedly connected with the shaft sleeve 41 through the connecting rod, the wall of the rear end of the air duct 5 is bent outwards, the caliber of the rear end opening of the air duct 5 is larger than that of the front end opening, the air inlet quantity of the air duct 5 is improved, and the air outlet of the air duct 5 is more concentrated.

The fan blade 42 is curved, and the tail end of the fan blade 42 is provided with a folded edge 43 which is turned outwards towards one end of the shell 12, and preferably, the folded edge 43 is perpendicular to the fan blade 42 at ninety degrees, so that the flow direction of the air is conveniently controlled while the air flow is increased, the blown air is more concentrated around the rotating shaft 11, and the cooling effect on the rotating shaft 11 is improved.

The front end of the shell 12 is fixedly provided with a water cooling disc 6, and the water cooling disc 6 is fixed on the front end face of the shell 12 through bolts. The water cooling disc 6 is connected with the rotating shaft 11 through the bearing 8, the water cooling disc 6 is provided with the water inlet 61 and the water outlet 62, the water cooling disc 6 is internally provided with the water cooling flow channel 63 communicated with the water inlet 61 and the water outlet 62, and cooling water is filled into the water cooling flow channel 63 to cool the rotating shaft 11 through the bearing 8, so that heat of the rotating shaft 11 is prevented from being transferred to the shell 12. Meanwhile, the water cooling disc 6 is arranged at the air inlet end of the cooling fan 4, so that the temperature of air flow sucked by the cooling fan 4 is reduced, and the cooling effect of the cooling fan 4 on the rotating shaft 11 is further improved.

Further, the water cooling flow channel 63 includes a plurality of ring channels 631 distributed at intervals along the radial direction, each ring channel 631 has a water inlet end and a water outlet end which are separated, the plurality of water inlet ends are communicated with the water inlet 61 through the water inlet holes 632, the plurality of water outlet ends are communicated with the water outlet 62 through the water outlet holes 633, cooling water can flow into the plurality of ring channels 631 along the water inlet holes 632 through the water inlet 61, and then flows out from the water outlet 62 along the water outlet holes 633 from the water outlet ends of the ring channels 631, so that the cooling water can pass through the cooling disk for multiple circles at the same time, and the cooling efficiency is improved. Preferably, the plurality of rings 631 are arranged concentrically.

Preferably, the water inlet 61 and the water outlet 62 are both arranged on the periphery of the water cooling disc 6, so that the water pipes can be conveniently abutted.

The mounting plate 3 is fixed on the water cooling disk 6 through the connecting cover 7, the connecting cover 7 is provided with a fixing ring 71 fixed with the mounting plate 3 through bolts and fixing rods 72 arranged between the fixing ring 71 and the water cooling disk 6 at intervals along the circumferential direction, and two ends of each fixing rod 72 can be respectively fixed with the fixing ring 71 and the water cooling disk 6 through welding, so that the mounting plate 3 is fixedly connected with the shell 12 of the motor 1 without obstructing the air suction and the air discharge of the cooling fan 4.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. The utility model provides a heat-resisting fan, includes the motor and the cover is fixed in impeller on the motor shaft front end, the shaft front end extends the casing of motor, the casing with be equipped with between the impeller with casing fixed connection's mounting panel, its characterized in that, the casing with be equipped with the cover between the mounting panel and fix in epaxial axial fan that flows of pivot, fan has the air duct of enclosing and establishing at the fan blade periphery.

2. The heat resistant fan as recited in claim 1, wherein said tail end of said fan blade is provided with a hem turned outwardly toward one end of said motor housing.

3. The heat resistant fan as set forth in claim 1, wherein a wall of the rear end of the air duct is curved to an outside.

4. The heat-resistant fan as set forth in claim 1, wherein a water cooling disc is fixedly arranged at the front end of the housing, the water cooling disc is connected with the rotating shaft through a bearing, a water inlet and a water outlet are formed in the water cooling disc, and a water cooling runner communicated with the water inlet and the water outlet is formed in the water cooling disc.

5. The heat resistant fan as set forth in claim 4 wherein said water cooling flow passage comprises a plurality of annular passages spaced apart in a radial direction, each of said annular passages having a blocked water inlet end and a blocked water outlet end, a plurality of said water inlet ends being in communication with said water inlet through water inlet openings and a plurality of said water outlet ends being in communication with said water outlet through water outlet openings.

6. The heat resistant fan in accordance with claim 5 wherein a plurality of said loops are concentrically disposed.

7. The heat resistant fan as set forth in claim 4, wherein said water inlet and said water outlet are both provided on a peripheral surface of said water cooling tray.

8. The heat resistant fan as recited in claim 4 wherein the mounting plate is secured to the water cooled disk by a connecting cover.