CN216199260U

CN216199260U - Be applied to radiator fan on-vehicle sensor

Info

Publication number: CN216199260U
Application number: CN202122598933.3U
Authority: CN
Inventors: 唐小权; 刘化为
Original assignee: Guangdong Fengxin Motor Co ltd
Current assignee: Guangdong Fengxin Motor Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-05
Anticipated expiration: 2031-10-25

Abstract

The utility model belongs to the technical field of fans, and particularly relates to a cooling fan applied to a vehicle-mounted sensor, which comprises a fan frame and a fan blade rotating wheel, wherein the fan blade rotating wheel is provided with a fan blade rotating wheel; the fan blade rotating wheel comprises a hub assembled on the mounting bracket and a plurality of fan blades arranged on the outer periphery of the hub at intervals; the fan blade has bending change in the rotating direction and the axial direction, and the blade leading edge and the blade trailing edge of the fan blade extend in a bending way from the blade root to the blade tip in the rotating direction. On one hand, after the airflow passes through the surfaces of the fan blades, the airflow is uniformly separated at the rear edge positions of the fan blades, so that the air outlet of the cooling fan applied to the vehicle-mounted sensor is more uniform, the energy efficiency of the wind wheel can be effectively improved, the consumption is reduced, and the environment is protected. On the other hand, the blade front edge and the blade rear edge of the fan blade extend axially, so that the pressure distribution on the surface of the fan blade is more uniform, the flow loss is reduced, and the energy efficiency ratio of the wind wheel is further improved.

Description

Be applied to radiator fan on-vehicle sensor

Technical Field

The utility model belongs to the technical field of fans, and particularly relates to a cooling fan applied to a vehicle-mounted sensor.

Background

In the working process of the vehicle-mounted sensor, the heating problem of the element is accompanied, and in order to facilitate the heat dissipation problem in the working process of the vehicle-mounted sensor, a heat dissipation fan is generally used in the industry nowadays to dissipate heat of the vehicle-mounted sensor, and the air flow provided by the heat dissipation fan enhances the heat exchange between the vehicle-mounted sensor and the air, so as to control the working temperature of the vehicle-mounted sensor within a limit value.

As described above, the conventional heat dissipation fan is disclosed in taiwan patent No. I429383. Furthermore, the heat dissipation wind pressure and the heat dissipation wind volume provided by a general heat dissipation fan depend on a fan blade or a fan frame of the heat dissipation fan, wherein the fan blade is limited by the relationship of generating cyclone by rotation and cannot be designed with great structural change, so that some manufacturers begin to design the wind flow for the fan frame. Some manufacturers increase the aperture of a flow guiding channel on the fan frame to increase the air intake of the heat dissipation fan, but this will result in the overall wind pressure of the heat dissipation fan being reduced. Moreover, if the diameter of the air inlet of the flow guide channel is designed to be larger than that of the air outlet, the heat dissipation fan will generate a great wind shear sound during operation, and the fan blades need to be designed and adjusted. Therefore, the structure of the existing cooling fan still needs to be improved to provide better cooling wind pressure and wind volume for the vehicle-mounted sensor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cooling fan applied to a vehicle-mounted sensor, and aims to solve the problem that the cooling effect is not obvious due to the structural design of the existing cooling fan.

In order to achieve the above object, an embodiment of the present invention provides a heat dissipation fan applied to a vehicle-mounted sensor, including a fan frame and a fan blade rotating wheel; a flow guide channel is formed in the fan frame in a hollow mode, penetrates through the fan frame and is provided with an air inlet and an air outlet at two sides of the fan frame; the fan frame is positioned on one side of the air inlet and extends from the edge of the flow guide channel to the inside of the flow guide channel to form a mounting bracket; the fan blade rotating wheel comprises a hub assembled on the mounting bracket and a plurality of fan blades arranged on the outer periphery of the hub at intervals; the fan blade has bending change in the rotating direction and the axial direction, and the blade leading edge and the blade trailing edge of the fan blade extend from the blade root to the blade tip in a bending way in the rotating direction; when the fan blade rotating wheel is driven to rotate, a heat dissipation airflow flowing from the air inlet to the air outlet is generated in the flow guide channel; the heat dissipation airflow enters from the front edge of the fan blade and exits from the rear edge of the fan blade.

Optionally, the fan blade is horizontally extended and molded along an arc from the root to the outside, so that the front surface and the back surface of the fan blade are both arc-shaped and plane.

Optionally, one side of the outer edge of the upper part of the fan blade is a wind cutting surface, and one side of the outer edge of the lower part of the fan blade is a wind inlet surface.

Optionally, a plurality of the fan blades are distributed on the outer periphery of the hub in an annular array, and the plurality of the fan blades and the hub are integrally molded.

Optionally, a pivot portion is formed at the center of the mounting bracket protruding upwards, a rotating shaft is formed at the center of the hub protruding downwards, and the rotating shaft is combined with the pivot portion.

Optionally, the hub is a hollow cylindrical barrel, the rear end of the hub is open, and the front end of the hub is closed to form a hub cavity; the rotating shaft is fixedly connected to the center of the hub and is accommodated in the hub cavity.

Optionally, the heat dissipation fan applied to the vehicle-mounted sensor further comprises a motor coil winding and a magnetic ring; the motor coil winding is combined on the mounting bracket, and the magnetic ring is combined on the inner circumferential surface of the hub and is arranged opposite to the motor coil winding; after the motor coil winding is electrified, a magnetic field is generated and drives the magnetic ring to drive the fan blade rotating wheel to rotate.

Optionally, N poles and S poles are alternately distributed on the magnetic ring along the circumferential direction thereof, or the N poles and S poles are respectively arranged at two ends of the magnetic ring along the axial direction.

Optionally, a wiring groove is formed in the fan frame and is recessed inwards on one side of the air inlet.

Optionally, a connecting hole for assembly is formed in the fan frame in a penetrating manner, and the three connecting holes are uniformly distributed at the corners of the fan frame.

One or more technical solutions of the cooling fan applied to the vehicle-mounted sensor provided by the embodiment of the present invention at least have one of the following technical effects: in the cooling fan applied to the vehicle-mounted sensor, on one hand, the bending design of the fan blades in the two directions of the rotating direction and the axial direction can ensure that airflow is uniformly separated at the rear edge position of the fan blades after passing through the surfaces of the fan blades, so that the air outlet of the cooling fan applied to the vehicle-mounted sensor is more uniform, the energy efficiency of a wind wheel can be effectively improved, the consumption is reduced, and the environment is protected. On the other hand, the blade front edge and the blade rear edge of the fan blade extend axially, so that the pressure distribution on the surface of the fan blade is more uniform, the flow loss is reduced, and the energy efficiency ratio of the wind wheel is further improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a perspective view of a heat dissipation fan applied to an in-vehicle sensor according to the present invention in a first visual sense.

Fig. 2 is a perspective view of a heat dissipation fan applied to an in-vehicle sensor according to the present invention in a second visual sense.

Fig. 3 is a top view of the present invention applied to an in-vehicle sensor.

Fig. 4 is a sectional view of the present invention applied to a vehicle-mounted sensor.

Fig. 5 is an exploded view of the present invention applied to a vehicle sensor.

Wherein, in the figures, the respective reference numerals:

100. a fan frame; 110. A flow guide channel; 120. An air inlet;

130. an air outlet; 140. Wiring grooves; 150. Connecting holes;

200. a fan blade rotating wheel; 210. A hub; 220. A fan blade;

230. a rotating shaft; 300. Mounting a bracket; 310. A pivot part;

400. a motor coil winding; 500. A magnetic ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

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", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 5, a heat dissipation fan applied to a vehicle-mounted sensor is provided, including a fan frame 100 and a blade wheel 200; a flow guiding channel 110 is formed in the fan frame 100, and the flow guiding channel 110 penetrates through the fan frame 100 and has an air inlet 120 and an air outlet 130 at two sides of the fan frame 100; the fan frame 100 is located at one side of the air inlet 120 and extends from the edge of the air guiding channel 110 to the inside of the air guiding channel 110 to form a mounting bracket 300; the fan blade wheel 200 comprises a hub 210 assembled on the mounting bracket 300 and a plurality of fan blades 220 arranged at intervals on the outer periphery of the hub 210; the fan blade 220 has bending change in both the rotation direction and the axial direction, and the blade leading edge and the blade trailing edge of the fan blade 220 extend in a bending way from the blade root to the blade tip in the rotation direction; when the fan blade wheel 200 is driven to rotate, a heat dissipation airflow flowing from the air inlet 120 to the air outlet 130 is generated in the flow guide channel 110; the heat dissipation airflow enters from the front edge of the fan blade 220 and exits from the rear edge of the fan blade 220.

Specifically, in the cooling fan applied to the vehicle-mounted sensor, on one hand, the curved design of the fan blades 220 in both the rotation direction and the axial direction can ensure that after airflow passes through the surfaces of the fan blades 220, uniform airflow separation is performed at the rear edge positions of the fan blades 220, so that the air outlet of the cooling fan applied to the vehicle-mounted sensor is more uniform, and the wind wheel energy efficiency can be effectively improved, the consumption can be reduced, and the environment can be protected. On the other hand, the blade leading edge and the blade trailing edge of the fan blade 220 extend axially, so that the pressure distribution on the surface of the fan blade 220 is more uniform, the flow loss is reduced, and the energy efficiency ratio of the wind wheel is further improved.

In another embodiment of the present invention, as shown in fig. 5, the fan blade 220 is horizontally extended from the root to the outside along an arc, so that the front and the back of the fan blade 220 are both arc-shaped and planar. That is, the root and the end of the fan blade 220 in this embodiment are both arc-shaped edges. For ease of understanding, the arc-shaped horizontal extension of the fan blades 220 in this embodiment has a gradual smooth transition between 23 ° and 88 °.

In another embodiment of the present invention, as shown in fig. 5, a wind cutting surface is located on one side of the upper outer edge of the fan blade 220, and a wind inlet surface is located on one side of the lower outer edge of the fan blade 220. Specifically, the air inlet and outlet time of the fan blade 220 is different between any two points on the wind cutting surface and the air inlet surface, so that the air supply time difference is generated, and the blown air area is wider and softer. In addition, the air supply time difference is utilized to enable each air supply tangent point to reach in a staggered mode, the air supply area is gradually increased along the air supply direction, and the noise can be effectively reduced.

In another embodiment of the present invention, as shown in fig. 3 and 5, a plurality of the fan blades 220 are distributed on the outer periphery of the hub 210 in an annular array, and a plurality of the fan blades 220 are integrally formed with the hub 210. Specifically, the fan blade 220 and the hub 210 are formed at one time, so that the connection stability is ensured, the dimensional accuracy of the fan blade 220 is ensured more easily, cracks or fractures of the fan blade 220 are avoided, and the reliability and the service life of the cooling fan applied to the vehicle-mounted sensor are improved.

In another embodiment of the present invention, as shown in fig. 4, a pivot portion 310 is formed at the center of the mounting bracket 300 protruding upwards, a rotating shaft 230 is formed at the center of the hub 210 protruding downwards, and the rotating shaft 230 is combined with the pivot portion 310.

The hub 210 is a hollow cylindrical barrel, the rear end of the hub is open, and the front end of the hub is closed to form a hub cavity; the rotation shaft 230 is fixedly connected to the center of the hub 210 and is received in the hub cavity.

In another embodiment of the present invention, as shown in fig. 4, the heat dissipation fan applied to the vehicle-mounted sensor further includes a motor coil winding 400 and a magnetic ring 500; the motor coil winding 400 is combined on the mounting bracket 300, and the magnetic ring 500 is combined on the inner circumferential surface of the hub 210 and is arranged opposite to the motor coil winding 400; the motor coil winding 400 generates a magnetic field after being energized and causes the magnetic ring 500 to drive the fan blade wheel 200 to rotate.

The magnetic center line of the motor coil winding 400 and the magnetic center line of the magnetic ring 500 are arranged in a staggered manner.

Specifically, the heat dissipation fan applied to the vehicle-mounted sensor has a reasonable structural design, and is characterized in that the magnetic ring 500 is combined with the inner circumferential surface of the hub 210 and arranged opposite to the motor coil winding 400, and the magnetic force center line of the motor coil winding 400 and the magnetic force center line of the magnetic ring 500 are arranged in a staggered manner, so that the axial movement and the radial swinging of the fan blade rotating wheel 200 are prevented, the condition that the movement is too large due to long-term use is avoided, the operation of the fan blade rotating wheel 200 can be stabilized, and the noise generated when the fan blade rotating wheel 200 operates can be avoided.

In another embodiment of the present invention, N poles and S poles are alternately distributed on the magnetic ring 500 along the circumferential direction thereof, or the N poles and S poles are respectively disposed at two ends of the magnetic ring 500 along the axial direction thereof. Specifically, the magnetic field generated by the magnetic ring 500 interacts with the magnetic field generated by the motor coil winding 400 after being energized, so that the magnetic ring 500 rotates relative to the motor coil winding 400, and further drives the fan blade rotating wheel 200 to rotate, thereby enhancing air circulation.

In another embodiment of the present invention, as shown in fig. 2, a wiring groove 140 is recessed inward on a side of the fan frame 100 located at the air inlet 120, so that the wires can be embedded in the wiring groove 140, and the fan frame is neat and beautiful and cannot be caught and pulled or scratched by a foreign object.

In another embodiment of the present invention, as shown in fig. 1 to 3, the fan frame 100 is provided with connecting holes 150 for assembly, and the three connecting holes 150 are uniformly distributed at the corners of the fan frame 100. Particularly, through the arrangement of the connecting hole 150, the cooling fan applied to the vehicle-mounted sensor is more convenient to assemble, and meanwhile, after the cooling fan applied to the vehicle-mounted sensor is fixed in the vehicle-mounted sensor, the cooling fan applied to the vehicle-mounted sensor can be more stable and reliable in the operation and use process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A heat radiation fan applied to a vehicle-mounted sensor comprises a fan frame and a fan blade rotating wheel; the method is characterized in that: a flow guide channel is formed in the fan frame in a hollow mode, penetrates through the fan frame and is provided with an air inlet and an air outlet at two sides of the fan frame; the fan frame is positioned on one side of the air inlet and extends from the edge of the flow guide channel to the inside of the flow guide channel to form a mounting bracket; the fan blade rotating wheel comprises a hub assembled on the mounting bracket and a plurality of fan blades arranged on the outer periphery of the hub at intervals; the fan blade has bending change in the rotating direction and the axial direction, and the blade leading edge and the blade trailing edge of the fan blade extend from the blade root to the blade tip in a bending way in the rotating direction; when the fan blade rotating wheel is driven to rotate, a heat dissipation airflow flowing from the air inlet to the air outlet is generated in the flow guide channel; the heat dissipation airflow enters from the front edge of the fan blade and exits from the rear edge of the fan blade.

2. The heat dissipation fan applied to the in-vehicle sensor as set forth in claim 1, wherein: the fan blade is horizontally extended and molded from the root part to the outside along an arc line so that the front surface and the back surface of the fan blade are both arc-shaped and plane-shaped.

3. The heat dissipation fan applied to the in-vehicle sensor as set forth in claim 1, wherein: and one side of the outer edge of the upper part of the fan blade is a wind cutting surface, and one side of the outer edge of the lower part of the fan blade is an air inlet surface.

4. The heat dissipation fan applied to the in-vehicle sensor as set forth in claim 1, wherein: the fan blades are distributed on the outer periphery of the hub in an annular array, and the fan blades and the hub are integrally formed.

5. The heat dissipation fan applied to the in-vehicle sensor as set forth in claim 1, wherein: the center of installing support is upwards protruding to be formed with a pin joint portion, the center of wheel hub is downwards protruding to be formed with a pivot, the pivot combine in pin joint portion.

6. The heat dissipation fan applied to the vehicle-mounted sensor as claimed in claim 5, wherein: the hub is a hollow cylindrical barrel, the rear end of the hub is open, and the front end of the hub is closed to form a hub cavity; the rotating shaft is fixedly connected to the center of the hub and is accommodated in the hub cavity.

7. The heat dissipation fan applied to the vehicle-mounted sensor according to any one of claims 1 to 6, wherein: the cooling fan applied to the vehicle-mounted sensor further comprises a motor coil winding and a magnetic ring; the motor coil winding is combined on the mounting bracket, and the magnetic ring is combined on the inner circumferential surface of the hub and is arranged opposite to the motor coil winding; after the motor coil winding is electrified, a magnetic field is generated and drives the magnetic ring to drive the fan blade rotating wheel to rotate.

8. The heat dissipation fan applied to the in-vehicle sensor as set forth in claim 7, wherein: the magnetic ring is alternately distributed with N poles and S poles along the circumferential direction or the two ends of the magnetic ring along the axial direction are respectively provided with the N poles and the S poles.

9. The heat dissipation fan applied to the vehicle-mounted sensor according to any one of claims 1 to 6, wherein: one side of the fan frame, which is positioned at the air inlet, is inwards sunken to be provided with a wiring groove.

10. The heat dissipation fan applied to the vehicle-mounted sensor according to any one of claims 1 to 6, wherein: the fan frame is provided with connecting holes for assembly in a penetrating mode, and the three connecting holes are uniformly distributed at the corners of the fan frame.