Waterproof cooling fan

Abstract

The utility model belongs to the technical field of heat dissipation accessories, and particularly relates to a waterproof heat dissipation fan which comprises an installation shell, an installation base and a driving blade fan. The mounting seat is arranged in the ventilation cavity; the driving blade fan is arranged on the mounting seat; the driving blade fan comprises a driving motor and blade plates, the driving motor is arranged in the middle of the mounting base, the multiple sets of blade plates are fixedly connected to the output end of the driving motor, the driving motor is used for driving all the blade plates to rotate, gaps are formed between the mounting base and the blade plates, and receding grooves are formed in the ends, close to the driving motor, of the blade plates. A sealing ring capable of extending into the clearance groove is arranged on the mounting seat, and the sealing ring and the inner wall of the clearance groove are arranged in a non-contact manner. On the premise that normal operation of the fan is guaranteed, the sealing ring is arranged, water molecules in air flow are blocked outside the host, electrical elements of the fan are effectively prevented from being affected with damp and overloaded, use is affected, the practicability of the cooling fan is improved, and enterprise development is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation accessories, and in particular relates to a waterproof heat dissipation fan. Background Art

[0002] A cooling fan is a cooling device commonly used in electronic products such as computers, servers, and communication equipment. Its working principle is to convert electrical energy into electromagnetic energy, then into mechanical energy, and finally into kinetic energy, thereby promoting air flow and achieving the purpose of heat dissipation. There are many forms of circuit principles for cooling fans, and different circuit designs will affect the performance of the fan.

[0003] The cooling fan includes a main unit, a shell and a blade fan, wherein the main unit is arranged in the shell, and the blade fan is rotatably connected to the output end of the main unit, and the main unit is used to drive the blade fan to rotate and then drive the air to move in a preset direction. In order to improve the smoothness of the rotation of the blade fan, there is a certain gap between the blade fan and the main unit and the shell. Therefore, during the operation of the cooling fan, if it is in a humid environment, water molecules in the air can easily pass through the gap in the direction of air flow movement. Under the condition of long-term accumulation, the water molecules accumulate into water droplets and enter the main unit, causing the fan to become damp, short-circuit and overload, and the structure to be damaged, which is not conducive to the normal use of the cooling fan. Utility Model Content

[0004] The utility model aims to provide a waterproof cooling fan, aiming to solve the technical problem in the prior art that water molecules easily enter the cooling fan, causing the fan to become damp, short-circuit and overload, and structural damage, which is not conducive to the normal use of the cooling fan.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides a waterproof heat dissipation fan, including a mounting shell, a mounting seat and a driving blade fan, the mounting shell is penetrated by a ventilation cavity; the mounting seat is arranged in the ventilation cavity; the driving blade fan is arranged on the mounting seat; the driving blade fan includes a driving motor and blades, the driving motor is arranged in the middle position of the mounting seat, the number of the blades is multiple groups, the multiple groups of the blades are fixedly connected to the output end of the driving motor, the driving motor is used to drive all the blades to rotate, a gap is arranged between the mounting seat and the blade, the end of the blade close to the driving motor is provided with an air avoidance groove, the mounting seat is provided with a sealing ring that can extend into the air avoidance groove, and the sealing ring and the inner wall of the air avoidance groove are arranged in a non-contact form.

[0006] Optionally, the mounting seat includes a connecting beam and a mounting plate, the two ends of the connecting beam are respectively fixedly connected to the inner wall of the ventilation cavity, the mounting plate is arranged in the middle position of the connecting beam, the drive motor is arranged on the mounting plate, the number of the connecting beams is multiple groups, the ends of the multiple groups of connecting beams are fixedly connected to the mounting plate, and the multiple groups of connecting beams are distributed in sequence around the circumferential edge of the mounting plate.

[0007] Optionally, the driving motor includes a main unit, an output spindle, a limit bearing and a connecting ring, the limit bearing is arranged on the mounting plate, the output spindle is arranged inside the mounting plate, the output end of the main unit is drivingly connected to the output spindle, the end of the output spindle section is rotatably connected to the inner ring of the limit bearing, the connecting ring is tightly connected to the output spindle and is located between the limit bearing and the main unit, and multiple groups of blades are fixedly arranged on the outer side wall of the connecting ring.

[0008] Optionally, the output spindle is arranged in a sleeve-like structure, the mounting plate is provided with a wire hole, the end of the mounting plate facing away from the output spindle is provided with a guide tube for accommodating the wire, the output spindle is provided with a wire tube, the wire tube is coaxially arranged with the output spindle, a gap is provided between the wire tube and the inner wall of the output spindle, the wire of the main machine extends into the guide tube through the wire tube, wherein the guide tube extends from the mounting plate toward the inner wall of the ventilation cavity, the wire of the main machine extends to the outside of the ventilation cavity through the guide tube and is electrically connected to the output end of the power supply.

[0009] Optionally, the guide pipe is laid on the connecting beam.

[0010] Optionally, the outer wall of the connecting ring is tightly connected to the rotating shell, and the rotating shell includes a base plate, a rotating plate and a connecting sleeve. The base plate is fixedly connected to the end of the main engine away from the mounting plate. The rotating plate is arranged in an annular structure, and the rotating plate is fixedly connected to the outer wall of the connecting ring. The inner ring of the connecting sleeve is fixedly connected to the outer ring of the rotating plate. The blades are circumferentially distributed on the outer wall of the connecting sleeve, and the blades are arranged in an inclined direction. The end of the connecting sleeve is slidingly connected to the side wall of the base plate.

[0011] Optionally, a limiting step is provided at the edge of the base plate, a wear-resistant ring is provided on the limiting step, and the end of the connecting sleeve is slidably connected to the wear-resistant ring.

[0012] Optionally, a gap is provided between the end of the connecting sleeve and the substrate.

[0013] Optionally, the air avoidance groove is formed at the end of the blade close to the connecting beam, the sealing ring is protrudingly formed between the connecting beam and the mounting plate, and the sealing ring passes through all the air avoidance grooves in sequence.

[0014] Optionally, a water-absorbing sponge layer is provided at the end of the sealing ring away from the mounting plate.

[0015] The above one or more technical solutions in the waterproof heat dissipation fan provided by the embodiment of the utility model have at least one of the following technical effects: the driving motor drives the blade to rotate, so that the airflow passes through the ventilation cavity. When the airflow passes through the sealing ring, the water molecules contact the sealing ring and liquefy and adhere to the sealing ring, and can never enter the main unit; compared with the prior art, water molecules can easily enter the heat dissipation fan, causing the fan to be short-circuited and overloaded due to moisture, and the structure is damaged, which is not conducive to the normal use of the heat dissipation fan. The waterproof heat dissipation fan provided by the embodiment of the utility model is provided with a sealing ring under the premise of ensuring the normal operation of the fan, so as to block the water molecules in the airflow outside the main unit, effectively preventing the electrical components of the fan from being overloaded due to moisture, affecting the use, thereby improving the practicability of the heat dissipation fan and facilitating the development of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic structural diagram of a waterproof heat dissipation fan provided in an embodiment of the utility model.

[0018] Figure 2 for Figure 1 Bottom view of the waterproof cooling fan in FIG.

[0019] Figure 3 A cross-sectional view of a waterproof heat dissipation fan provided in an embodiment of the utility model.

[0020] Figure 4 for Figure 3 Magnified view of A in .

[0021] Figure 5 for Figure 3 Magnified view of B in .

[0022] Figure 6 for Figure 3 Magnified view of C in .

[0023] Figure 7 for Figure 1 A top view of the waterproof cooling fan in FIG.

[0024] Among them, the reference numerals in the figure are:

[0025] 100—Mounting housing 200—Mounting seat 300—Drive blade fan

[0026] 400—ventilation cavity 310—drive motor 320—blade

[0027] 321—avoiding groove 210—sealing ring 220—connecting beam

[0028] 311 - main engine 230 - mounting plate 312 - output spindle

[0029] 313—limit bearing 314—connecting ring 231—wire hole

[0030] 232 - guide tube 315 - wire tube 500 - rotating housing

[0031] 510—base plate 520—rotating plate 530—connecting sleeve

[0032] 511—wear-resistant ring 240—water-absorbing sponge. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present invention in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 7 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0037] In one embodiment of the present invention, Figures 1 to 7 As shown, a waterproof heat dissipation fan is provided, comprising a mounting shell 100, a mounting seat 200 and a driving blade fan 300, wherein the mounting shell 100 is provided with a ventilation cavity 400; the mounting seat 200 is arranged in the ventilation cavity 400; the driving blade fan 300 is arranged on the mounting seat 200; the driving blade fan 300 comprises a driving motor 310 and a blade plate 320, wherein the driving motor 310 is arranged at a middle position of the mounting seat 200, and the number of the blade plates 320 is multiple groups, and the number of the blade plates 320 is multiple groups. The vanes 320 are fixedly connected to the output end of the drive motor 310, and the drive motor 310 is used to drive all the vanes 320 to rotate. A gap is set between the mounting seat 200 and the vanes 320, and an air-avoiding groove 321 is set at the end of the vanes 320 close to the drive motor 310. The mounting seat 200 is provided with a sealing ring 210 that can extend into the air-avoiding groove 321, and the sealing ring 210 is arranged in a non-contact form with the inner wall of the air-avoiding groove 321. In this embodiment, the air-avoiding groove 321 is formed on the side of the vanes 320 close to the air inlet end.

[0038] The driving motor 310 drives the blade 320 to rotate, so that the airflow passes through the ventilation cavity 400. When the airflow passes through the sealing ring 210, the water molecules contact the sealing ring 210 and liquefy and adhere to the sealing ring 210, and can never enter the main unit 311. Compared with the prior art, water molecules can easily enter the cooling fan, causing the fan to be damp and short-circuited and overloaded, and the structure is damaged, which is not conducive to the normal use of the cooling fan. The waterproof cooling fan provided by the embodiment of the utility model is provided with a sealing ring 210 to block the water molecules in the airflow outside the main unit 311 while ensuring the normal operation of the fan, thereby effectively preventing the electrical components of the fan from being damp and overloaded, affecting the use, thereby improving the practicability of the cooling fan and facilitating the development of the enterprise.

[0039] like Figures 1 to 7 As shown, in another embodiment of the utility model, the mounting seat 200 includes a connecting beam 220 and a mounting plate 230, the two ends of the connecting beam 220 are respectively fixedly connected to the inner wall of the ventilation cavity 400, the mounting plate 230 is arranged in the middle of the connecting beam 220, the driving motor 310 is arranged on the mounting plate 230, the number of the connecting beams 220 is multiple groups, the ends of the multiple groups of connecting beams 220 are all fixedly connected to the mounting plate 230, and the multiple groups of connecting beams 220 are sequentially distributed around the circumferential edge of the mounting plate 230. Specifically, the number of the connecting beams 220 is four groups, and the four groups of connecting beams 220 are evenly distributed on the circumferential edge of the mounting plate 230. The use of four groups of connecting beams 220 is conducive to improving the structural stability of the mounting seat 200 and preventing the driving blade 300 from shaking.

[0040] like Figures 1 to 7 As shown, in another embodiment of the utility model, the driving motor 310 includes a main machine 311, an output spindle 312, a limit bearing 313 and a connecting ring 314, the limit bearing 313 is arranged on the mounting plate 230, the output spindle 312 is arranged in the mounting plate 230, the output end of the main machine 311 is drivingly connected to the output spindle 312, the end of the output spindle 312 is rotatably connected to the inner ring of the limit bearing 313, the connecting ring 314 is tightly connected to the output spindle 312 and is located between the limit bearing 313 and the main machine 311, and a plurality of groups of blades 320 are fixedly arranged on the outer side wall of the connecting ring 314. Specifically, the rotation of the output spindle 312 drives the connecting ring 314 to rotate, and then the blades 320 rotate with the connecting ring 314 to generate a preset direction of airflow. In this embodiment, the limit shaft is a ball bearing, and the output spindle 312 is connected by a bearing unit, which is conducive to improving the rotation stability of the spindle.

[0041] like Figures 1 to 7As shown, in another embodiment of the utility model, the output spindle 312 is arranged in a sleeve-like structure, the mounting plate 230 is penetrated with a wire hole 231, and the end of the mounting plate 230 facing away from the output spindle 312 is provided with a guide tube 232 for accommodating the wire, and a wire tube 315 is arranged in the output spindle 312, and the wire tube 315 is coaxially arranged with the output spindle 312, and a gap is provided between the wire tube 315 and the inner wall of the output spindle 312, and the wire of the main machine 311 extends into the guide tube 232 through the wire tube 315, wherein the guide tube 232 extends from the mounting plate 230 toward the inner wall of the ventilation cavity 400, and the wire of the main machine 311 extends to the outside of the ventilation cavity 400 through the guide tube 232 and is electrically connected to the output end of the power supply. In this embodiment, the wire of the host 311 passes through the wire hole 231 along the wire tube 315 and enters the guide tube 232, and then moves from the guide tube 232 to the outside of the ventilation cavity 400. The entire wire is in a sealed state and is not exposed to the external environment, further improving the waterproof effect of the cooling fan. Specifically, the guide tube 232 is laid on the connecting beam 220, which is conducive to further optimizing the structure of the cooling fan.

[0042] like Figures 1 to 7 As shown, in another embodiment of the utility model, the outer side wall of the connecting ring 314 is tightly connected to the rotating shell 500, and the rotating shell 500 includes a base plate 510, a rotating plate 520 and a connecting sleeve 530. The base plate 510 is fixedly connected to the end of the main machine 311 away from the mounting plate 230. The rotating plate 520 is arranged in an annular structure. The rotating plate 520 is fixedly connected to the outer side wall of the connecting ring 314. The inner ring of the connecting sleeve 530 is fixedly connected to the outer ring of the rotating plate 520. The blades 320 are circumferentially distributed on the outer side wall of the connecting sleeve 530. The blades 320 are arranged in an inclined direction, and the end of the connecting sleeve 530 is slidably connected to the side wall of the base plate 510. The use of sliding connection is conducive to ensuring that the connecting sleeve 530 rotates smoothly, and can be stably limited on the base plate 510 to prevent the connecting sleeve 530 from loosening during the rotation process, affecting the blasting effect of the blade 320.

[0043] like Figures 1 to 7 As shown, in another embodiment of the utility model, a limiting step is provided at the edge of the base plate 510, a wear-resistant ring 511 is provided on the limiting step, and the end of the connecting sleeve 530 is slidably connected to the wear-resistant ring 511. The use of the wear-resistant ring 511 is conducive to preventing the connecting sleeve 530 from generating mechanical vibration during the rotation process.

[0044] like Figures 1 to 7As shown, in another embodiment of the utility model, a gap is provided between the end of the connecting sleeve 530 and the base plate 510 . The use of the gap structure is beneficial to avoiding friction between the connecting sleeve 530 and the base plate 510 , thereby further improving the rotational stability of the connecting sleeve 530 .

[0045] like Figures 1 to 7 As shown, in another embodiment of the utility model, the air-avoiding groove 321 is formed at the end of the blade 320 close to the connecting beam 220, and the sealing ring 210 is protrudingly formed between the connecting beam 220 and the mounting plate 230. The sealing ring 210 passes through all the air-avoiding grooves 321 in sequence to ensure that the blade 320 will not contact the sealing ring 210 during the rotation process. The end of the sealing ring 210 away from the mounting plate 230 is provided with a water-absorbing sponge layer 240 to further prevent water molecules from entering the main unit 311. At the same time, the water molecules in the water-absorbing sponge layer 240 will be affected by the airflow and evaporate, thereby reducing the water molecule content.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof heat dissipation fan, characterized in that: include: An installation shell, wherein the installation shell is provided with a ventilation cavity; A mounting seat, the mounting seat being arranged in the ventilation cavity; A driving blade fan, wherein the driving blade fan is arranged on the mounting seat; Among them, the driving blade fan includes a driving motor and blades, the driving motor is arranged in the middle position of the mounting seat, the number of the blades is multiple groups, and the multiple groups of blades are fixedly connected to the output end of the driving motor. The driving motor is used to drive all the blades to rotate, and a gap is arranged between the mounting seat and the blades. The end of the blade close to the driving motor is provided with an air avoidance groove, and the mounting seat is provided with a sealing ring that can extend into the air avoidance groove, and the sealing ring is arranged in a non-contact form with the inner wall of the air avoidance groove.

2. A waterproof heat dissipation fan according to claim 1, characterized in that: The mounting seat includes a connecting beam and a mounting plate, the two ends of the connecting beam are respectively fixedly connected to the inner wall of the ventilation cavity, the mounting plate is arranged in the middle position of the connecting beam, the drive motor is arranged on the mounting plate, the number of the connecting beams is multiple groups, the ends of the multiple groups of connecting beams are all fixedly connected to the mounting plate, and the multiple groups of connecting beams are distributed in sequence around the circumferential edge of the mounting plate.

3. A waterproof heat dissipation fan according to claim 2, characterized in that: The driving motor includes a main machine, an output spindle, a limit bearing and a connecting ring. The limit bearing is arranged on the mounting plate, and the output spindle is arranged in the mounting plate. The output end of the main machine is drivingly connected to the output spindle, and the end of the output spindle section is rotatably connected to the inner ring of the limit bearing. The connecting ring is tightly connected to the output spindle and is located between the limit bearing and the main machine. Multiple groups of blades are fixedly arranged on the outer side wall of the connecting ring.

4. A waterproof heat dissipation fan according to claim 3, characterized in that: The output spindle is arranged in a sleeve-like structure, the mounting plate is provided with a wire hole, the end of the mounting plate facing away from the output spindle is provided with a guide tube for accommodating the wire, the output spindle is provided with a wire tube, the wire tube is coaxially arranged with the output spindle, a gap is provided between the wire tube and the inner wall of the output spindle, the wire of the host extends into the guide tube through the wire tube, wherein the guide tube extends from the mounting plate toward the inner wall of the ventilation cavity, the wire of the host extends to the outside of the ventilation cavity through the guide tube and is electrically connected to the output end of the power supply.

5. A waterproof heat dissipation fan according to claim 4, characterized in that: The guide pipe is laid on the connecting crossbeam.

6. The waterproof heat dissipation fan according to claim 3, characterized in that: The outer side wall of the connecting ring is tightly connected to the rotating shell, and the rotating shell includes a base plate, a rotating plate and a connecting sleeve. The base plate is fixedly connected to the end of the main machine away from the mounting plate. The rotating plate is arranged in an annular structure. The rotating plate is fixedly connected to the outer side wall of the connecting ring. The inner ring of the connecting sleeve is fixedly connected to the outer ring of the rotating plate. The blades are circumferentially distributed on the outer side wall of the connecting sleeve. The blades are arranged in an inclined direction, and the end of the connecting sleeve is slidably connected to the side wall of the base plate.

7. A waterproof heat dissipation fan according to claim 6, characterized in that: A limiting step is arranged at the edge of the base plate, a wear-resistant ring is arranged on the limiting step, and the end of the connecting sleeve is slidably connected to the wear-resistant ring.

8. The waterproof heat dissipation fan according to claim 7, characterized in that: A gap is arranged between the end of the connecting sleeve and the base plate.

9. A waterproof heat dissipation fan according to any one of claims 2 to 8, characterized in that: The air-avoiding groove is formed at the end of the blade close to the connecting beam, the sealing ring is protrudingly formed between the connecting beam and the mounting plate, and the sealing ring passes through all the air-avoiding grooves in sequence.

10. The waterproof heat dissipation fan according to claim 9, characterized in that: The end of the sealing ring away from the mounting plate is provided with a water-absorbing sponge layer.

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