CN219993983U - Fan system with integrated hub, thermal management system and vehicle - Google Patents

Abstract

The utility model relates to a fan system with an integrated hub, comprising: the fan blade assembly comprises a hub and a plurality of fan blades arranged around the hub, wherein the hub is provided with a front wall and a side wall extending in the circumferential direction, and the front wall and the side wall form a cavity; the driving device is used for driving the fan blade assembly to rotate and comprises a stator and a fixed shaft, wherein the stator is at least partially accommodated in the cavity, the fan blade assembly can rotate around the fixed shaft, and the fan blade assembly further comprises: a support member fixed to the front wall for supporting the hub on the fixed shaft, and a rotor magnet disposed on a side of the side wall facing the cavity. The utility model also relates to a thermal management system comprising said fan system, and a vehicle comprising said thermal management system. The fan system provided by the utility model has the advantages of compact structure, small overall volume, more convenient installation and capability of effectively improving the artificial production time efficiency.

Description

Fan system with integrated hub, thermal management system and vehicle

Technical Field

The utility model relates to a fan system with an integrated hub, a thermal management system including the fan system, and a vehicle including the thermal management system.

Background

There is a general need for a smaller, lighter weight, more convenient to install fan system in applications where heat dissipation is required in the industry. For example, a fan system is required to provide heat dissipation to an engine or a power battery in a thermal management system of a vehicle. However, especially in the front hood of a new energy automobile, due to the number of components to be cooled, the installation space is limited, and the existing fan system is usually too large and inconvenient to install.

In addition, in actual production, the fan blades serving as the rotating parts and the motor rotor have uneven mass, and the weight balance is usually adjusted by cutting off for many times before installation, however, in the design of the existing fan system, the balance correction is usually needed for the fan blades and the rotor respectively, so that the labor cost and the time cost are higher.

Disclosure of Invention

The present utility model aims to propose a fan system which overcomes the above-mentioned and/or other drawbacks of the prior art, is compact, has a small overall volume, is more convenient to install and can effectively increase the production time.

The above object is achieved by the following technical scheme.

A fan system with an integrated hub according to the present utility model comprises: the fan blade assembly comprises a hub and a plurality of fan blades arranged around the hub, wherein the hub comprises a front wall and a side wall extending in the circumferential direction, and the front wall and the side wall form a cavity; the driving device is used for driving the fan blade assembly to rotate and comprises a stator and a fixed shaft, the stator is at least partially accommodated in the cavity, the fan blade assembly can rotate around the fixed shaft, and the fan blade assembly further comprises: a support member fixed to the front wall for supporting the hub on the fixed shaft, and a rotor magnet disposed on a side of the side wall facing the cavity.

The exemplary embodiments are based on the following recognition: the rotor magnet is integrated on the hub of the fan blade assembly, so that the rotatable parts are assembled together, and therefore, only one-time balance correction is needed for the integrated hub, and the rotor part and the fan blades do not need to be independently and respectively balanced and adjusted as in the prior art, so that the labor and time cost are saved. Meanwhile, the fan blade assembly is further integrated with a supporting piece for supporting the hub on the fixed shaft, so that the installation is simpler and more convenient.

According to a preferred exemplary embodiment of the utility model, the support has a sleeve section which is arranged to fit over the outer side of the stationary shaft, and a flange section which extends radially outwardly from the sleeve section and is intended to be fixedly connected to the front wall of the hub.

According to a preferred exemplary embodiment of the utility model, the end of the sleeve section adjacent to the front wall is designed as an open end.

According to a preferred exemplary embodiment of the utility model, the end of the sleeve segment remote from the front wall is provided with a radially inward projection. This makes it possible to fix the bearing in the axial direction in a simple manner.

According to a preferred exemplary embodiment of the utility model, the hub leaves an aperture in the centre of the front wall, which is spatially open with the open end of the sleeve section, through which aperture the bearing can be mounted between the sleeve section and the stationary shaft.

By adopting the design mode, after the sleeve section of the supporting piece is sleeved on the fixed shaft, the bearing, the bushing, the clamp and other parts are installed from the hole of the hub, so that the installation and the maintenance can be realized conveniently and rapidly.

According to a preferred exemplary embodiment of the utility model, the flange section is embedded inside the front wall. For example, the flange section may be embedded inside the front wall by a two shot molding process.

The flange section is thereby more firmly fixed to the front wall while the overall thickness of the hub front wall is unchanged, so that the fan system is small in overall volume and compact in structure.

According to a preferred exemplary embodiment of the utility model, a mounting hole is provided in the front wall, into which mounting hole the flange section is inserted and secured by means of a connecting piece.

According to a preferred exemplary embodiment of the utility model, the flange section extends to a radially intermediate position of the front wall.

The radially intermediate position of the front wall is a position at which the distance from the center of the hub is about 1/6 to 2/3 of the radius of the hub. The ratio may be, for example, 1/5, 1/4, 1/3, 1/2, etc. The greater the length of the flange section extension, the better the support, but at the same time the greater the weight, the more suitable the radial length of the flange section can be adjusted according to the circumstances.

According to a preferred exemplary embodiment of the utility model, the rotor magnet is glued or snapped to the side wall.

According to a preferred exemplary embodiment of the present utility model, the number of the rotor magnets is plural, and the rotor magnets are uniformly fixed to the side wall around the fixed shaft.

In another aspect, the utility model provides a thermal management system comprising a fan system according to the above.

In yet another aspect, the present utility model provides a vehicle comprising a thermal management system as described above.

Drawings

The above features, technical features, advantages and the implementation of the present utility model will be further described in the following description of the preferred embodiments in a clear and understandable manner by referring to the accompanying drawings. Wherein:

FIG. 1 illustrates a perspective view of an inside of a fan blade assembly in a fan system of an exemplary embodiment;

FIG. 2 shows a perspective view of an inside detail of the fan blade assembly of FIG. 1;

FIG. 3 shows a schematic perspective view of the fan system of the exemplary embodiment, wherein the stator has been mounted within the cavity of the fan blade assembly, and some components of the drive are not shown for clarity;

FIG. 4 shows a detailed view of a portion of the components of the drive of the fan system of FIG. 3;

FIG. 5 illustrates a perspective view of a support of a fan blade assembly in the fan system of the exemplary embodiment;

FIG. 6 illustrates another perspective view of a support of a fan blade assembly in the fan system of the exemplary embodiment;

FIG. 7 illustrates a cross-sectional view of a support of a fan blade assembly in a fan system of an exemplary embodiment;

FIG. 8 illustrates a perspective view of the outside of a fan blade assembly in a fan system of an exemplary embodiment;

FIG. 9 illustrates a perspective view of a bearing of a fan blade assembly in a fan system of an exemplary embodiment in a connection with a stationary shaft;

fig. 10 is a cross-sectional perspective view showing the connection of the support member of the fan blade assembly to the stationary shaft in the fan system of the exemplary embodiment.

In the figure:

100 fan system 10 fan blade assembly 1 hub

1A Cavity 1B side wall of front wall 12 of opening 11

13 support 131 sleeve segment 132 flange segment

133 projection 13A open end

14 rotor magnet 15 bearing 16 bushing

2 fan blade 20 driving device 21 stator 22 fixing shaft

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the specific embodiments of the present disclosure. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Possible implementations within the scope of the present disclosure may have fewer components, have other components not shown in the drawings, different components, differently arranged components, differently connected components, etc., than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Where the number of components is not specified, the number of components may be one or more; likewise, the terms "a," "an," "the," and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "mounted," "configured," "connected," or "connected" and the like are not limited to physical or mechanical mounting, configuration, connection, but may include electrical mounting, configuration, connection, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships when the apparatus is in use or positional relationships shown in the drawings, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.

Fig. 1 shows a perspective view of the inside of a fan blade assembly 10 in a fan system 100 (see fig. 3) of an exemplary embodiment.

From fig. 1, a fan blade assembly 10 is visible, comprising a hub 1 and a plurality of fan blades 2 arranged around said hub 1. The radially outer side of the plurality of blades 2 is connected to a ring, but other designs without rings are also conceivable. The hub 1 has a front wall 11 and a circumferentially extending side wall 12 (see fig. 2), the front wall 11 and the side wall 12 enclosing a cavity 1A. The hub 1 and the blades 2 may be connected together in a manner known in the art, preferably manufactured in one piece by an injection moulding process.

The fan blade assembly 10 further comprises: a support 13 fixed to the front wall 11 for supporting the hub 1 on a fixed shaft 22 (see fig. 4); and a rotor magnet 14 disposed on a side of the side wall 12 facing the cavity 1A.

Fig. 2 shows a perspective view of an inside detail of the fan blade assembly 10 of fig. 1.

It can be seen that the front wall 11 and the side walls 12 of the hub 1 enclose a cavity 1A. The rotor magnets 14 are eight in number and are arranged uniformly distributed in the circumferential direction on the side of the side wall 12 of the hub 1 facing the cavity 1A. It is within the scope of the present disclosure that the number of rotor magnets 14 may be one or more. Rotor magnet 14 may be a magnet having a multipole orientation configuration with a plurality of north poles and a plurality of south poles juxtaposed with the north poles.

The fixed connection of the rotor magnet 14 to the side wall 12 may be in the following manner. For example, rotor magnet 14 may be glued to sidewall 12, or may be snapped onto sidewall 12 by a snap-fit mechanism. By adopting the fixed connection mode, the operation is simple, the operation can be performed without operators with special skills, and the labor and the installation cost are saved.

Fig. 3 shows a schematic perspective view of the fan system 100 of the exemplary embodiment.

It is seen that the fan blade assembly 10 is assembled with a drive means 20 for driving said fan blade assembly 10 in rotation. The driving device 20 is at least partially housed in the cavity 1A enclosed by the front wall 11 and the side walls 12 of the hub 1, so as to be close to the rotor magnet 14.

Fig. 4 shows a detailed view of a portion of the components of the drive 20 of the fan system 100.

The driving device 20 includes a stator 21 and a fixed shaft 22. The stator 21 is at least partially housed within the cavity 1A of the hub 1. The fixed shaft 22 extends at the center of the hub 1. The fan blade assembly 10 is rotatable about the fixed axis 22. The stator 21 may be fixedly coupled to any desired structure, such as a shroud, and may include a plurality of windings.

The magnetic field generated by the rotor magnet 14 electromagnetically induces a magnetic field generated by a current flowing through the stator winding, and generates a torque that rotates the rotor magnet 14.

Fig. 5 shows a perspective view of the support 13 of the fan blade assembly 10 in the fan system 100 of the exemplary embodiment.

The support 13 has a sleeve segment 131 which is sleeved outside the stationary shaft 22, and a flange segment 132 which extends radially outwardly from the sleeve segment 131, the flange segment 132 being intended for a fixed connection to the front wall 11 of the hub 1. The end of the sleeve segment 131 adjacent to the front wall 11 is designed as an open end 13A. The support 13 is usually a metal part.

Fig. 6 shows another perspective view of the support 13 of the fan blade assembly 10 in the fan system 100 of the exemplary embodiment.

It can be seen that the end of the sleeve segment 131 remote from the front wall 11 is provided with a radially inward projection 133. The bearing mounted between the sleeve segment 131 and the fixed shaft 22 abuts against this projection 133. The end of the sleeve portion 131 remote from the front wall 11 is also the end opposite the open end 13A. The length of the protruding portion 133 may be appropriately designed according to the radius of the fixed shaft 22.

Fig. 7 shows a cross-sectional view of the support 13 of the fan blade assembly 10 in the fan system 100 of the exemplary embodiment.

Here, the flange section 132 is embedded inside the front wall 11. For example, the flange section 132 may be embedded inside the front wall 11 by a two shot molding process. This allows the flange segment 132 to be more firmly fixed to the front wall 11 and also allows the overall thickness of the hub front wall 11 to be unchanged, thus eliminating the dimensions (in particular the thickness) occupied by the separate covers of the drive devices of the prior art, and therefore the overall bulk of the fan system 100 is small and compact.

It is within the scope of the present disclosure that the connection of the front wall 11 to the support 13 may also take other forms. For example, in an embodiment not shown, the front wall 11 may also be provided with mounting holes, into which the flange segments 132 are inserted and fastened to the front wall 11 by means of connectors, such as bolts.

It is within the scope of the present disclosure that the radial extension of the flange section 132 may protrude only slightly beyond the sleeve section 131, or may extend the entire radial length of the front wall 11. Preferably, the flange section 132 extends to a radially intermediate position of the front wall 11. The radially intermediate position of the front wall 11 refers to a position where the distance from the center of the hub is about 1/6 to 2/3 of the radius of the hub. The ratio may be, for example, 1/5, 1/4, 1/3, 1/2, etc. The greater the length of the flange section 132 extension, the more supportive, but at the same time the greater the weight, increases the overall weight of the fan assembly, thereby compromising the rotation of the fan assembly. The radial length of the suitable flange segment 132 can be adjusted to achieve the best match of support and weight requirements.

Fig. 8 shows a perspective view of the outside of the fan blade assembly 10, whereby it can be seen that the hub 1 leaves an aperture 1B in the centre of the front wall 11, said aperture 1B being spatially open with the open end 13A of the sleeve segment 131, through which aperture 1B a bearing 15 (see fig. 10) can be mounted between the sleeve segment 131 and the stationary shaft 22. It is thereby possible to mount the fixing elements such as the bearing 15 and the bush 16 between the bearings from the opening 1B of the hub 1 after the sleeve segment 131 of the support element 13 is fitted over the fixed shaft 22.

Fig. 9 shows a perspective view of the attachment of the support 13 of the fan blade assembly 10 to the stationary shaft 22 in the fan system 100 of the exemplary embodiment. It can be seen therein that the end of the sleeve segment 131 adjacent the front wall 11 is an open end 13A. The stationary shaft 22 passes through the sleeve segment 131. The bearing 15 is mounted between the sleeve segment 131 and the stationary shaft 22 through the open end 13A.

Fig. 10 shows a cross-sectional perspective view of the attachment relationship of the support 13 of the fan blade assembly 10 to the stationary shaft 22 in the fan system 100 of the exemplary embodiment.

Here, two bearings 15, here two ball bearings, are shown, between which a bushing 16 is arranged, the upper side of the upper bearing 15 being provided with shims and clamping bands.

Here, the fixed shaft 22 is tightly fitted to the inner ring of the bearing 15, and the fixed shaft 22 itself and the inner ring of the bearing 15 are not rotated. On the other hand, the outer ring of the bearing 15 is tightly fitted and rotatable with the sleeve segment 131. The magnetic field generated by the rotor magnet 14 interacts with the magnetic field generated by the current flowing through the stator winding, and generates torque that rotates the rotor magnet 14. Since the rotor magnet 14 is fixed to the fan blade assembly 10 by the support 13, the rotation of the rotor magnet 14 can be transmitted to the hub 1 through the support 13, so that the fan blade assembly 10 rotates around the fixed shaft 22.

Since the rotor magnet 14 is integrated on the fan blade assembly 10, it is sufficient to calibrate the fan blade assembly 10 without separately calibrating the rotor, thereby saving a lot of labor and time costs.

Through the ingenious design to the flabellum subassembly, integrated rotor magnet and the support piece that is used for supporting flabellum subassembly rotation on the wheel hub, compact structure, whole small is convenient for install and remove, maintain, and installation effectiveness is high, and can effectively improve manual production ageing. The problem that a heat management system is inconvenient to install due to the fact that more elements to be cooled and the installation space are limited in a new energy automobile is solved.

While exemplary embodiments are set forth in the foregoing description, it should be noted that numerous variations are possible. It should furthermore be noted that the exemplary embodiments are only examples, and should not be construed as limiting the scope, applicability, and configuration of the device in any way according to the exemplary embodiments. Rather, the summary and description of the embodiments provide the practitioner with a guidance for implementing at least one exemplary embodiment, wherein various modifications can be made in the function and arrangement of the components without departing from the scope of protection as determined by the claims and the equivalent combination of features.

Claims (10)

1. A fan system (100) with an integrated hub, comprising:

the fan blade assembly (10) comprises a hub (1) and a plurality of fan blades (2) arranged around the hub (1), wherein the hub (1) comprises a front wall (11) and a side wall (12) extending in the circumferential direction, the front wall (11) and the side wall (12) enclose a cavity (1A),

a driving device (20) for driving the fan blade assembly (10) to rotate, comprising a stator (21) and a fixed shaft (22), wherein the stator (21) is at least partially accommodated in the cavity (1A), the fan blade assembly (10) can rotate around the fixed shaft (22),

it is characterized in that the method comprises the steps of,

the fan blade assembly (10) further comprises:

a support (13) fixed to the front wall (11) for supporting the hub (1) on the fixed shaft (22), and

a rotor magnet (14) arranged on a side of the side wall (12) facing the cavity (1A).

2. The fan system (100) according to claim 1, wherein the support (13) has a sleeve section (131) that is sleeved outside the stationary shaft (22), and a flange section (132) that protrudes radially outwards from the sleeve section (131), the flange section (132) being intended for a fixed connection to the front wall (11) of the hub (1).

3. The fan system (100) according to claim 2, characterized in that the end of the sleeve section (131) adjacent to the front wall (11) is designed as an open end (13A).

4. The fan system (100) according to claim 2, wherein an end of the sleeve segment (131) remote from the front wall (11) is provided with a radially inward projection (133).

5. A fan system (100) according to claim 3, characterized in that the hub (1) leaves an aperture (1B) in the centre of the front wall (11), said aperture (1B) being spatially through-going with the open end (13A) of the sleeve section (131), through which aperture (1B) a bearing can be mounted between the sleeve section (131) and the stationary shaft (22).

6. The fan system (100) according to any of claims 2 to 5, characterized in that the flange section (132) is embedded inside the front wall (11), or that a mounting hole is provided in the front wall (11), into which mounting hole the flange section (132) is embedded and fixed by means of a connection piece.

7. The fan system (100) according to any of claims 2 to 5, wherein the flange section (132) extends to a radially intermediate position of the front wall (11).

8. The fan system (100) according to any of claims 1 to 5, wherein the rotor magnet (14) is glued or snapped to the side wall (12); the number of rotor magnets (14) is plural and fixed to the side wall (12) uniformly distributed around a fixed shaft (22).

9. Thermal management system, characterized in that it comprises a fan system (100) according to any one of claims 1 to 8.

10. Vehicle, characterized in that it comprises a thermal management system according to claim 9.