Axial flow fan with high sealing performance

Abstract

The utility model discloses an axial flow fan with high sealing performance, which comprises an axial flow fan body, the axial flow fan body is provided with a coil chamber and a control panel chamber which are distributed in an isolated manner, the coil chamber is internally provided with a motor coil assembly, and the control panel chamber is internally provided with a control panel; a cover body is arranged on the outer side of the control panel cavity, a first sealing ring is arranged between the axial flow fan body and the cover body, and a main shaft sealing plug is arranged in the control panel cavity and corresponds to the rear side of the main shaft sleeve. The coil cavity and the control panel cavity which are distributed in an isolated mode are adopted, the contact pins are sealed through sealant, the contact pins are sealed through the sealant, the contact pins are sealed through the sealant, the contact pins are sealed through the sealant, the contact pins are sealed through the sealant, and the contact pins are sealed through the sealant, so that the contact pins are sealed through the sealant, and the sealing performance of the contact pins is improved. The motor coil assembly and the control panel are separated, the main shaft sealing plug is arranged on the rear side of the main shaft sleeve, water vapor and dust in the coil cavity are prevented from entering the control panel cavity, and the sealing performance of the axial flow fan is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and particularly relates to an axial flow fan with high sealing performance. Background Art

[0002] An axial flow fan is a fan that uses blades to generate air flow and discharges the air flow along the axial direction. Its simple structure, stable operation, low noise, good heat dissipation effect and other characteristics make it a heat dissipation device widely used in various fields.

[0003] In the existing axial flow fan, the motor is installed inside the fan body, and the motor installation has a separate chamber, which is directly covered by a cover plate. However, after long-term use, there is a problem of seal failure in the motor chamber inside the fan, and it does not have the functions of waterproof and dustproof, which affects the normal use of the axial flow fan. Therefore, we propose an axial flow fan with high sealing performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an axial flow fan with high sealing performance to solve the problems proposed in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an axial flow fan with high sealing performance, including an axial flow fan body, where the axial flow fan body is provided with a coil chamber and a control board chamber that are distributed separately. The coil chamber is provided with a motor coil assembly, and the control board chamber is provided with a control board;

[0006] A cover body is arranged outside the control board chamber. A first sealing ring is arranged between the axial flow fan body and the cover body. A main shaft sealing plug is arranged in the control board chamber corresponding to the rear side of the main shaft sleeve;

[0007] A wire perforation tube is arranged on the cover body corresponding to the position of the control board chamber. A second sealing ring for sealing the wire connection is arranged inside the cover body corresponding to the position of the wire perforation tube.

[0008] Preferably, a first sealing ring groove is opened on the axial flow fan body corresponding to the outside of the control board chamber. The first sealing ring is arranged in the first sealing ring groove. A convex ring is arranged on the cover body corresponding to the position of the first sealing ring groove, and the convex ring abuts against the first sealing ring in the first sealing ring groove.

[0009] Preferably, the main shaft sealing plug is snap-fitted at the bottom of the main shaft sleeve of the axial flow fan body, and the main shaft sealing plug abuts against the cover body.

[0010] Preferably, the axial flow fan body and the cover body are fixedly connected by bolts and nuts.

[0011] Preferably, the wire is threaded through the wire perforation tube, and a wire pressing plug for clamping the wire is arranged at a position corresponding to the wire perforation tube on the axial flow fan body.

[0012] Preferably, a socket is formed at a position corresponding to the wire pressing plug on the wire perforation tube, and the wire pressing plug is inserted into the socket to clamp the wire.

[0013] Preferably, a sealing flare is formed at the connection between the wire perforation tube and the cover body, and the second sealing ring is arranged in the sealing flare.

[0014] Preferably, the control board is led into the coil chamber through pins and connected to the motor coil assembly, and the pins are hermetically connected between the coil chamber and the control board chamber through sealant.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model adopts isolated and distributed coil chambers and control board chambers, and uses sealant to seal the pins, so that the motor coil assembly and the control board are isolated and separated. Moreover, a main shaft seal plug is arranged at the rear side of the main shaft sleeve to prevent moisture and dust in the coil chamber from entering the control board chamber, thereby improving the sealing performance of the axial flow fan.

[0017] 2. In the present utility model, the cover body is fixed by screws and nuts, making the appearance more beautiful. Moreover, a first sealing ring is arranged between the axial flow fan body and the cover body, further improving the sealing performance between the cover body and the axial flow fan body, and facilitating disassembly and assembly for use.

[0018] 3. In the present utility model, the second sealing ring is used to seal the lead wire, and the wire pressing plug is used to clamp the wire, further improving the sealing performance of the axial flow fan, preventing moisture and dust from entering the interior through the wire, and ensuring the normal use of the axial flow fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 2 is the sectional three-dimensional structure schematic diagram of the present utility model;

[0021] Figure 3 is the sectional structure schematic diagram of the present utility model;

[0022] Figure 4 is the sectional structure schematic diagram of the present utility model;

[0023] Figure 5 is Figure 4 the enlarged structure schematic diagram of A in

[0024] In the figure: 1. Axial flow fan body; 2. Coil chamber; 3. Control board chamber; 4. Motor coil assembly; 5. Control board; 6. Cover body; 7. First sealing ring; 8. Spindle seal plug; 9. Wire perforation tube; 10. Wire; 11. Second sealing ring; 12. First sealing ring groove; 13. Convex ring; 14. Bolt; 15. Nut; 16. Wire compression plug; 17. Socket; 18. Sealing flare. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-5 , the axial flow fan with high sealing performance provided by the present invention includes an axial flow fan body 1. The axial flow fan body 1 is provided with an isolated and distributed coil chamber 2 and a control board chamber 3. A motor coil assembly 4 is arranged in the coil chamber 2, and a control board 5 is arranged in the control board chamber 3. The control board 5 is led into the coil chamber 2 through pins and connected to the motor coil assembly 4, and the pins are hermetically connected between the coil chamber 2 and the control board chamber 3 through sealant. A spindle seal plug 8 is arranged in the control board chamber 3 corresponding to the rear side of the spindle sleeve. The spindle seal plug 8 is clamped at the bottom of the spindle sleeve of the axial flow fan body 1, and the spindle seal plug 8 abuts against the cover body 6;

[0027] The present invention adopts an isolated and distributed coil chamber 2 and a control board chamber 3, and uses sealant to seal the pins, so that the motor coil assembly 4 and the control board 5 are isolated and separated. A spindle seal plug 8 is arranged at the rear side of the spindle sleeve to prevent water vapor and dust in the coil chamber 2 from entering the control board chamber 3, thereby improving the sealing performance of the axial flow fan;

[0028] A cover body 6 is arranged outside the control board chamber 3. The axial flow fan body 1 and the cover body 6 are fixedly connected by bolts 14 and nuts 15;

[0029] A first sealing ring 7 is arranged between the axial flow fan body 1 and the cover body 6. A first sealing ring groove 12 is opened on the axial flow fan body 1 corresponding to the outside of the control board chamber 3. The first sealing ring 7 is arranged in the first sealing ring groove 12. A convex ring 13 is arranged on the cover body 6 corresponding to the position of the first sealing ring groove 12. The convex ring 13 abuts against the first sealing ring 7 in the first sealing ring groove 12;

[0030] In the utility model, bolts 14 and nuts 15 are used to fix the cover body 6, which has a more beautiful appearance, and a first sealing ring 7 is provided between the axial flow fan body 1 and the cover body 6, which further improves the sealing performance between the cover body 6 and the axial flow fan body 1, and is easy to disassemble and use;

[0031] A wire perforated tube 9 is provided at a position corresponding to the control panel chamber 3 on the cover body 6, a second sealing ring 11 for sealing the connection of the wire 10 is provided at a position corresponding to the wire perforated tube 9 in the cover body 6, the wire 10 is connected in the wire perforated tube 9, a wire pressing plug 16 for clamping the wire 10 is provided at a position corresponding to the wire perforated tube 9 on the axial flow fan body 1, a socket 17 is provided at a position corresponding to the wire pressing plug 16 on the wire perforated tube 9, the wire pressing plug 16 is inserted into the socket 17 to press the wire 10, a sealing expansion 18 is provided at the connection between the wire perforated tube 9 and the cover body 6, and the second sealing ring 11 is provided in the sealing expansion 18;

[0032] In the utility model, a second sealing ring 11 is used to seal the lead wire 10, and a wire compression plug 16 is used to compress the wire 10, so as to further improve the sealing performance of the axial flow fan, prevent water vapor and dust from entering the interior through the wire 10, and ensure the normal use of the axial flow fan.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An axial flow fan with high sealing performance, characterized in that, The axial flow fan body (1) is provided with a coil chamber (2) and a control panel chamber (3) which are separated and distributed, the coil chamber (2) having a motor coil assembly (4) arranged therein, and the control panel chamber (3) having a control panel (5) arranged therein; A cover body (6) is arranged outside the control panel chamber (3), a first sealing ring (7) is arranged between the axial flow fan body (1) and the cover body (6), and a main shaft sealing plug (8) is arranged inside the control panel chamber (3) at the rear side of the main shaft sleeve; A wire perforated tube (9) is provided on the cover body (6) at a position corresponding to the control panel chamber (3), and a second sealing ring (11) for sealing a connection of a wire (10) is provided inside the cover body (6) at a position corresponding to the wire perforated tube (9).

2. The axial flow fan with high sealing performance according to claim 1, wherein: A first sealing ring groove (12) is provided on the axial flow fan body (1) at an outer side corresponding to the control panel chamber (3); the first sealing ring (7) is arranged in the first sealing ring groove (12); a convex ring (13) is provided on the cover body (6) at a position corresponding to the first sealing ring groove (12); the convex ring (13) abuts against the first sealing ring (7) in the first sealing ring groove (12).

3. The axial flow fan with high sealing performance according to claim 1, characterized in that: The main shaft sealing plug (8) is clamped on the bottom of the main shaft sleeve of the axial flow fan body (1), and the main shaft sealing plug (8) and the cover body (6) are in abutment with each other.

4. The axial flow fan with high sealing performance according to claim 1, wherein: The axial flow fan body (1) and the cover body (6) are fixedly connected via bolts (14) and nuts (15).

5. The axial flow fan with high sealing performance according to claim 1, characterized in that: The wire (10) is inserted into the wire perforated tube (9), and a wire clamping plug (16) for clamping the wire (10) is provided at a position on the axial flow fan body (1) corresponding to the wire perforated tube (9).

6. The axial flow fan with high sealing performance according to claim 5, characterized in that: A socket (17) is provided on the wire perforated tube (9) at a position corresponding to the wire pressing plug (16), and the wire pressing plug (16) is inserted into the socket (17) to press the wire (10).

7. The axial flow fan with high sealing performance according to claim 1, characterized in that: A sealing expansion opening (18) is provided at the connection between the wire perforated tube (9) and the cover body (6), and the second sealing ring (11) is arranged in the sealing expansion opening (18).

8. The axial flow fan with high sealing performance according to claim 1, wherein: The control board (5) is led into the coil chamber (2) via a plug pin and connected to the motor coil assembly (4), and the plug pin is sealed and connected between the coil chamber (2) and the control board chamber (3) via a sealant.

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