Incremental flow guide type automobile radiator fan

Abstract

The utility model discloses a diversion incremental automobile radiator fan which comprises an outer frame, a motor and fan blades, the motor is installed on the outer frame, the fan blades are connected to a rotating shaft of the motor, the outer edge of each fan blade is provided with an annular frame, the outer end of each frame is provided with a sealing ring extending towards the outer side, and the outer end of each sealing ring is provided with a sealing ring. The sealing ring seals a gap between the outer frame and the frame, the blade end part of the fan blade is connected to the frame, the outer end side edge of the blade extends to form an increment sheet, the motor comprises an upper cover, a base and a rotor, the upper cover is in sealing connection with the base, and the upper cover is in sealing connection with the rotor. Therefore, in the wading process of an automobile, the motor of the radiator can still run, and the frame and the increment piece act synergistically, so that the air volume is increased.

Description

Technical Field

[0001] The utility model relates to a component on an automobile, in particular to a flow-guiding incremental automobile radiator fan. Background Art

[0002] Radiator fans are primarily used to dissipate heat from automotive radiators, which typically cool the engine. After the engine starts and the temperature reaches a certain level, the radiator activates to dissipate heat and maintain stable engine temperatures. However, conventional automotive radiator fans lack adequate sealing in their motors, making them susceptible to short circuits or damage during water intrusion, impacting the cooling system. Furthermore, conventional fan blades have limited flow-guiding efficiency, limiting airflow capacity. While existing sealing structures exist, they often focus on single locations (such as bearings), making it difficult to achieve complete motor waterproofing. Furthermore, weak points like wiring connections are susceptible to water seepage. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present invention is to provide a flow-guiding incremental automobile radiator fan with waterproof performance.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a guide incremental automobile radiator fan, comprising an outer frame, a motor and a fan blade, the motor being mounted on the outer frame, the fan blade being connected to the rotating shaft of the motor, the outer edge of the fan blade being provided with a circular frame, the outer end of the frame being provided with a sealing ring extending outward, the sealing ring sealing the gap between the outer frame and the frame, the blade end of the fan blade being connected to the frame, the outer end side of the blade extending outwardly from an incremental piece, the motor comprising an upper cover, a base and a rotor, the upper cover and the base being sealed and connected, and the upper cover and the rotor being provided with a sealing connection.

[0005] An upper bearing is arranged between the upper end of the rotating shaft on the motor and the upper cover, and the upper cover is provided with a first mounting groove corresponding to the upper bearing, a first sealing ring is provided between the inner wall of the first mounting groove and the upper bearing, an annular retaining ring extends inward from the open end face of the first mounting groove, an annular positioning groove is provided on the inner side wall of the retaining ring, a second sealing ring is arranged between the annular positioning groove and the end face of the upper bearing, and a sealing rubber sleeve is covered on the end face of the upper bearing facing the opening of the first mounting groove.

[0006] The base is provided with an annular step, the port of the upper cover is close to the lower end surface of the step, a third sealing ring is arranged on the step, the port of the upper cover is in contact with the third sealing ring, the base is provided with a second mounting groove corresponding to the lower end of the rotating shaft, a lower bearing is provided between the second mounting groove and the rotating shaft, the bottom surface of the mounting groove is closed, and an elastic ring is provided between the bottom surface of the mounting groove and the lower bearing.

[0007] The elastic ring is made of rubber, and its peripheral wall is in a wave shape.

[0008] A circuit board is arranged in the base, and a wiring port is provided on the base. The wires are connected to the circuit board through the wiring port. A cover is provided on the wiring port, and the cover is plugged into the base in a concave and convex manner. A glue injection port is provided on the cover. After the cover is installed on the base, glue is injected through the glue injection port to seal the wiring port.

[0009] The beneficial effects of the present invention are: since the upper cover and the base are sealed, a sealed connection is provided between the upper cover and the rotor, and the wiring port is sealed by means of glue injection, the motor is fully enclosed, thereby making the motor waterproof. In this way, when the car is wading through water, the radiator motor can still run, and the frame and the incremental sheet work together to increase the air volume.

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of a specific embodiment of the present invention Figure 1 ;

[0012] Figure 2 A three-dimensional diagram of a specific embodiment of the present invention Figure 2 ;

[0013] Figure 3 A cross-sectional view of a specific embodiment of the present utility model;

[0014] Figure 4 for Figure 3 A magnified view of middle A;

[0015] Figure 5 for Figure 3 Enlarged view of middle B;

[0016] Figure 6 for Figure 3 Enlarged view of C in the middle.

[0017] In the figure, 1. outer frame; 2. motor; 3. fan blade; 4. upper bearing; 5. first sealing ring; 6. second sealing ring; 7. sealing rubber sleeve; 8. lower bearing; 9. elastic ring; 10. third sealing ring; 20. sealing cover; 21. upper cover; 22. base; 23. rotor; 24. rotating shaft; 31. frame; 32. sealing ring; 33. blade; 210. first mounting groove; 2101. retaining ring; 2102. annular positioning groove; 220. second mounting groove; 211. annular step; 331. increment piece. DETAILED DESCRIPTION

[0018] The present invention is described in detail below through examples, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0019] like Figure 1 — Figure 3 As shown, this embodiment discloses a flow-incremental automobile radiator fan, which mainly includes:

[0020] Overall structure‌

[0021] The radiator fan includes an outer frame 1, a motor 2 and a fan blade 3. The motor 2 is fixed to the center of the outer frame 1, and the fan blade 3 is driven by the motor shaft 24; Figure 4 As shown, an annular frame 31 is provided on the outer edge of the fan blade 3, and a sealing ring 32 extends from the outer end of the frame 31. The sealing ring 32 cooperates with the inner wall gap of the outer frame 1 to seal the gap and reduce airflow leakage. The motor 2 includes an upper cover 21, a base 22 and a rotor 23. A rotating shaft 24 is provided on the rotor 23. The upper cover 21 and the base 22 are sealed and connected, and a sealing connection is provided between the upper cover 21 and the rotor 23.

[0022] 3-blade efficiency design‌

[0023] The end of the blade 33 of the fan blade 3 is fixed to the inner side of the frame 31, and a triangular incremental piece 331 extends from the outer side of the blade 33. The incremental piece 331 is connected to the blade 33 at an acute angle to enhance the axial guidance of the airflow and increase the air volume at a unit speed.

[0024] The frame 31 and the sealing ring 32 form a guide channel to constrain the airflow to flow in the axial direction and reduce eddy current loss.

[0025] Fully sealed motor structure

[0026] Upper bearing 4 seal assembly: Figure 5 As shown, the upper end of the rotating shaft 24 is mounted to the upper cover 21 via the upper bearing 4. The upper cover 21 has a first mounting groove 210 to accommodate the upper bearing 4. A first sealing ring 5 (O-ring) is positioned between the inner wall of the first mounting groove 210 and the upper bearing 4. An annular retaining ring 2101 extends from the inside of the notch of the first mounting groove 210. An annular positioning groove 2102 is positioned within the retaining ring 2101. A second sealing ring 6 (made of fluororubber) is positioned between the annular positioning groove 2102 and the end face of the upper bearing 4. The end face of the upper bearing 4 is covered with a sealing rubber sleeve 7 made of silicone, forming a triple sealing barrier.

[0027] Elastic seal of lower bearing 8: The lower end of the rotating shaft 24 is installed in the second mounting groove 220 on the base 22 through the lower bearing 8. The bottom of the groove is closed and an elastic ring 9 made of wavy rubber material is arranged between the lower bearing 8. The wavy structure of the peripheral wall of the elastic ring 9 provides axial buffering and compensates for assembly tolerances to ensure the sealing of the bearing.

[0028] Shell seal: Figure 6 As shown, the motor 2 housing is composed of an upper cover 21 and a base 22 that are fastened together. An annular step 211 is provided at the end of the base 22. A third sealing ring 10 (made of silicone) is disposed on the annular step 211. The upper cover 21 end presses the third sealing ring 10 to achieve radial sealing.

[0029] ‌Waterproof design of wiring port‌

[0030] The side wall of the base 22 is provided with a wiring port, and the wires pass through the wiring port to connect to the internal circuit board. The outer side of the wiring port is covered with a cover 20, and the cover 20 is fixed to the base 22 through a concave and convex slot.

[0031] A glue injection port is provided on the top of the cover 20. After installation, epoxy resin glue is injected through the glue injection port. After curing, the pores of the wiring port are completely sealed to prevent water vapor from intruding.

[0032] Through the above technical solution,

[0033] Fully enclosed waterproof motor: Triple bearing seals, housing seals, and glue-injected wiring ports ensure the motor is IP67-rated for continuous operation even in submerged conditions.

[0034] Incremental guide blades: The frame 31 and the incremental blades 331 work together to increase air volume by 15%-20% and reduce noise by 3-5dB.

[0035] ‌Vibration resistance‌: The wave-shaped elastic ring absorbs the vibration of the rotating shaft 24, extending the bearing life.

[0036] During assembly, the upper cover 21 of the motor 2 is first bolted to the base 22, and the third sealing ring 10 is tightened to form a radial seal. Subsequently, the first and second sealing rings are inserted into the first mounting groove 210 and the retaining ring 2101 positioning groove. After the upper bearing 4 is installed, the sealing rubber sleeve 7 is applied. Before the lower bearing 8 is installed into the second mounting groove 220, a wavy elastic ring 9 is pre-installed to adapt its deformation to the bearing tolerance. The fan blade 3 is injection molded using nylon and glass fiber material. The incremental piece 331 and the blade 33 are integrally formed, with an inclination angle of 25°. After the wiring port cover 20 is installed, epoxy glue is injected from the glue injection port, and after curing, a seamless sealing layer is formed.

[0037] The elastic ring is replaced with polyurethane material, and the peak spacing of the wavy wall is 2mm, further improving the cushioning performance.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flow-guiding incremental automobile radiator fan, comprising an outer frame, a motor, and fan blades, wherein the motor is mounted on the outer frame and the fan blades are connected to the rotating shaft of the motor, characterized in that: The outer edge of the fan blade is provided with a circular frame, and the outer end of the frame is provided with a sealing ring extending outward, which blocks the gap between the outer frame and the frame. The blade end of the fan blade is connected to the frame, and an incremental piece extends from the outer end side of the blade. The motor includes an upper cover, a base and a rotor. The upper cover and the base are sealed and connected, and the upper cover and the rotor are sealed.

2. The incremental flow-guiding automobile radiator fan according to claim 1, characterized in that: An upper bearing is arranged between the upper end of the rotating shaft on the motor and the upper cover, and the upper cover is provided with a first mounting groove corresponding to the upper bearing, a first sealing ring is provided between the inner wall of the first mounting groove and the upper bearing, an annular retaining ring extends inward from the open end face of the first mounting groove, an annular positioning groove is provided on the inner side wall of the retaining ring, a second sealing ring is arranged between the annular positioning groove and the end face of the upper bearing, and a sealing rubber sleeve is covered on the end face of the upper bearing facing the opening of the first mounting groove.

3. The incremental flow-guiding automobile radiator fan according to claim 1, characterized in that: The base is provided with an annular step, the port of the upper cover is close to the lower end surface of the step, a third sealing ring is arranged on the step, the port of the upper cover is in contact with the third sealing ring, the base is provided with a second mounting groove corresponding to the lower end of the rotating shaft, a lower bearing is provided between the second mounting groove and the rotating shaft, the bottom surface of the mounting groove is closed, and an elastic ring is provided between the bottom surface of the mounting groove and the lower bearing.

4. The incremental flow-guiding automobile radiator fan according to claim 3, characterized in that: The elastic ring is made of rubber, and its peripheral wall is in a wave shape.

5. The incremental flow-guiding automobile radiator fan according to claim 1, characterized in that: A circuit board is arranged in the base, and a wiring port is provided on the base. The wires are connected to the circuit board through the wiring port. A cover is provided on the wiring port, and the cover is plugged into the base in a concave and convex manner. A glue injection port is provided on the cover. After the cover is installed on the base, glue is injected through the glue injection port to seal the wiring port.

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