CN118499258A - Fan with fan body - Google Patents

Abstract

An embodiment of the present application provides a fan, including: the impeller, motor, casing and wire, wherein, the casing includes the basal portion, the basal portion is formed with the through-hole that runs through along the axial, the surface of basal portion is formed with the first guide part and the second guide part of the extending direction of the other end of guide wire, the projection of first guide part on the surface of basal portion extends along first direction, the one end of second guide part is connected with the one end of keeping away from of edge of through-hole of first guide part, the other end of second guide part is to keeping away from the direction of first guide part extends, the projection of second guide part on the surface of basal portion extends along the second direction different from first direction. Thus, the wire is bent from one direction to the other, and the wire is fixed by the restoring force of the wire itself coming into contact with the first guide portion and the second guide portion, thereby preventing the wire from moving left and right.

Description

Fan with fan body

Technical Field

The application relates to the field of electromechanics, in particular to a fan.

Background

In the automotive field, it is a relatively common cooling means to radiate heat from a heat generating portion by a fan. In order to fix the external electric wires of the fan, a fixing member is generally provided on the housing of the fan to guide and fix the electric wires.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present application and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the application section.

Disclosure of Invention

The inventors of the present application have found that in the case where a fan is greatly vibrated by an external force, for example, in the case where an automobile is running on a bumpy road, the fixing member in the related art cannot suppress the left-right play of the electric wire, and there is also a risk that the electric wire arches to come off the fixing member, resulting in easy wear and breakage of the electric wire, thereby shortening the service life of the fan.

In view of at least one of the above problems, an embodiment of the present application provides a fan, including: an impeller that rotates around a central axis; a motor that drives the impeller to rotate about the central axis; a casing accommodating the impeller and the motor and supporting the motor; one end of the lead is connected with the motor, and the other end of the lead is connected with external equipment positioned outside the shell; the casing comprises a base part, wherein a through hole penetrating along the axial direction is formed in the base part, a first guide part and a second guide part which guide the extending direction of the other end of the wire are formed on the outer surface of the base part, and the other end of the wire penetrates out of the through hole and is accommodated by the first guide part and the second guide part; one end of the first guide portion is connected with at least a part of the edge of the through hole, the other end of the first guide portion extends in a direction away from the edge of the through hole, a projection of the first guide portion on the outer surface of the base portion extends in a first direction, one end of the second guide portion is connected with one end of the first guide portion away from the edge of the through hole, the other end of the second guide portion extends in a direction away from the first guide portion, and a projection of the second guide portion on the outer surface of the base portion extends in a second direction different from the first direction.

The application has the beneficial effects that: the first guide part and the second guide part which extend along different directions guide the wire, so that the wire is bent from one direction to the other direction, and the wire is fixed by the contact of the restoring force of the wire and the first guide part and the second guide part, so that the wire is prevented from moving left and right.

Specific embodiments of the application are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the application are not limited in scope thereby. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is evident that the figures in the following description are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:

fig. 1 is a schematic perspective view of a fan according to an embodiment of the present application.

FIG. 2 is a partial schematic view of a cross-sectional view of a fan according to an embodiment of the present application taken along the A-A direction shown in FIG. 1.

Fig. 3 is a perspective view of a casing of a fan according to an embodiment of the present application, as viewed from one direction.

Fig. 4 is a perspective view of a casing of a fan according to an embodiment of the present application, viewed from another direction.

Fig. 5 is a bottom view of a housing of a fan according to an embodiment of the present application.

Detailed Description

The foregoing and other features of the application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the specification and drawings, there have been specifically disclosed specific embodiments of the application that are indicative of some of the ways in which the principles of the application may be employed, it being understood that the application is not limited to the specific embodiments described, but, on the contrary, the application includes all modifications, variations and equivalents falling within the scope of the appended claims.

In the embodiments of the present application, the terms "first," "second," "upper," "lower," etc. are used to distinguish between different elements from each other by reference, but do not denote a spatial arrangement or a temporal order of the elements, which should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprises," "comprising," "including," "having," and the like, are intended to reference the presence of stated features, elements, components, or groups of components, but do not preclude the presence or addition of one or more other features, elements, components, or groups of components.

In embodiments of the present application, the singular forms "a," an, "and" the "include plural referents and should be construed broadly to mean" one "or" one type "and not limited to" one "or" another; furthermore, the term "comprising" is to be interpreted as including both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood as "based at least in part on … …", and the term "based on" should be understood as "based at least in part on … …", unless the context clearly indicates otherwise.

In the following description of the present application, for convenience of description, a radial direction about a central axis of a rotation shaft of a fan is referred to as a "radial direction", a direction about the central axis is referred to as a "circumferential direction", a direction along the central axis is referred to as an "axial direction" or an "axial extending direction", a side away from the central axis in the radial direction is referred to as a "radial outside", and a side closer to the central axis in the radial direction is referred to as a "radial inside".

The embodiment of the application provides a fan. Fig. 1 is a schematic perspective view of a fan according to an embodiment of the present application. FIG. 2 is a partial schematic view of a cross-sectional view of a fan according to an embodiment of the present application taken along the A-A direction shown in FIG. 1.

As shown in fig. 2, the fan 1 includes an impeller 10, a motor 20, a casing 30, and a wire 40, the motor 20 driving the impeller 10 to rotate about a central axis OO', the casing 30 accommodating the impeller 10 and the motor 20 and supporting the motor 20, one end of the wire 40 being connected to the motor 20, and the other end of the wire 40 being located outside the casing 30.

As shown in fig. 1, the other end of the wire 40 is provided with an interface 40a, for example, and the fan 1 is connected to other external devices, for example, to a control device, through the interface 40 a. In addition, interface 40a may be any type of interface, as embodiments of the present application are not limited in this regard. For example, interface 40a may be a general-purpose interface, e.g., interface 40a is a 4-pin interface, an 8-pin interface, etc., as embodiments of the application are not limited in this respect.

In the embodiment of the present application, for convenience of explanation, a space of the casing 30 accommodating the impeller 10, the motor 20, etc. is generally referred to as an "inside" of the casing 30, and a space located outside the "inside" space is referred to as an "outside" of the casing 30. For convenience of explanation, the surface of the casing 30 located "inside" is referred to as "inner surface", and the surface of the casing 30 located "outside" is referred to as "outer surface".

In addition, for convenience of explanation, the "left" and "right" described in the embodiments of the present application refer to the "left" and "right" directions with reference to the description object, and those skilled in the art should understand that the description should not be taken as a limitation in implementation of the embodiments of the present application.

As shown in fig. 2, the casing 30 includes a base 310, the base 310 is formed with a through hole 310a penetrating in the axial direction, an outer surface 310b of the base 310 is formed with a guide structure guiding the extending direction of the other end of the wire 40, and the other end of the wire 40 is penetrated from the through hole 310a and received by the guide structure. In at least one embodiment, the case 30 is formed of, for example, a resin material, whereby the guide structure is easily molded. In addition, the case 30 may be formed of other materials, for example, a metal material, etc., as long as the guide structure can be easily formed, and the embodiment of the present application is not limited thereto.

Fig. 3 is a perspective view of a housing of a fan according to an embodiment of the present application, viewed from one direction, fig. 4 is a perspective view of a housing of a fan according to an embodiment of the present application, viewed from another direction, and fig. 5 is a bottom view of a housing of a fan according to an embodiment of the present application.

As shown in fig. 3, the outer surface 310b of the base 310 is formed with a first guide 311 and a second guide 312, one end of the first guide 311 is connected to at least a part of the edge of the through hole 310a, and the other end of the first guide 311 extends in a direction away from the edge of the through hole 310 a; one end of the second guide portion 312 is connected to one end of the first guide portion 311 away from the edge of the through hole 310a, and the other end of the second guide portion 312 extends in a direction away from the first guide portion 311, and the first guide portion 311 and the second guide portion 312 house at least a part of the lead wire 40 (not shown in fig. 3).

As shown in fig. 5, the projection of the first guide 311 on the outer surface 310b of the base 310 extends in a first direction F1, and the projection of the second guide 312 on the outer surface 310b of the base 310 extends in a second direction F2, the first direction F1 being different from the second direction F2.

Accordingly, the wire 40 is guided by the first guide portion 311 and the second guide portion 312 extending in different directions, and the wire 40 is bent from the first direction F1 to the second direction F2, so that the wire 40 is fixed by the restoring force of the wire 40 itself coming into contact with the first guide portion 311 and the second guide portion 312, the wire 40 is prevented from moving left and right, and abrasion of the wire 40 is suppressed.

In at least one embodiment, the first guide 311 and the second guide 312 may be, for example, formed such that at least a portion of the base 310 is recessed inward, whereby the first guide 311 and the second guide 312 can be easily formed. In addition, the first guide portion 311 and the second guide portion 312 may be formed by at least a portion of the base portion 310 protruding outward, which is not limited in the embodiment of the present application.

In at least one embodiment, as shown in fig. 5, the projection of the first guide 311 onto the outer surface 310b of the base 310 forms an obtuse angle θ with the projection of the second guide 312 onto the outer surface 310b of the base 310. In addition, the value of the angle θ in the embodiment of the present application is not limited, and may be set according to actual needs, for example, the angle θ ranges from 150 ° to 175 °.

This can prevent the wire from being fixed to the two guide portions less firmly due to the excessive bending degree of the wire and the reduced restoring force.

In addition, the relative direction of the first direction F1 and the second direction F2 shown in fig. 5 is from the first direction F1 to the second direction F2 in the counterclockwise direction shown in fig. 5, and the embodiment of the present application is not limited thereto, that is, the relative direction of the first direction F1 and the second direction F2 may be from the first direction F1 to the second direction F2 in the clockwise direction shown in fig. 5.

In at least one embodiment, as shown in fig. 4, the first guide 311 includes a wall portion 3111 protruding from the outer surface 310b of the base 310 in the axial direction, and a projection of the wall portion 3111 on the outer surface 310b of the base 310 extends in the first direction F1. Thus, the wire is guided by the wall 3111, and left and right movement of the wire is prevented.

For example, as shown in fig. 4, the first guide portion 311 is a groove formed by recessing the outer surface 310b of the base portion 310 inward, and a wall portion 3111 is formed to protrude from the bottom surface of the groove in the axial direction, and the wall portion 3111 may extend in the first direction F1.

In addition, the embodiment of the present application does not limit the height of the wall portion 3111 extending in the axial direction, for example, the height of the wall portion 3111 is equal to the depth of the groove of the first guide portion 311, whereby the wire can be further reliably fixed; or the height of the wall portion 3111 is lower than the depth of the groove of the first guide portion 311, for example, the height of the wall portion 3111 is slightly lower than the depth of the groove of the first guide portion 311, thereby preventing the wall portion from protruding from the bottom surface of the chassis due to errors in the processing process, and affecting the fixing of the chassis.

In at least one embodiment, the wall portion 3111 extends in the first direction F1 for a length less than a length of the first guide portion 311 extending in the first direction F1. Thus, the wall portion using less material can achieve a fixing effect, and a space for bending the wire from the first direction to the second direction can be reserved.

In at least one embodiment, as shown in fig. 4, the number of wall portions 3111 is plural, and as shown in fig. 1, the other end of the wire 40 is guided by two adjacent wall portions 3111. This further prevents the wire from moving left and right.

As shown in fig. 4, the first guide portion 311 includes, for example, 4 wall portions 3111, but the embodiment of the present application is not limited thereto, and the first guide portion 311 may include 2 wall portions 3111, 3 wall portions 3111, and 4 or more wall portions 3111.

In at least one embodiment, as shown in FIG. 1, the number of wires 40 is a plurality. The distance between adjacent two wall portions 3111 is, for example, smaller than or equal to the outer diameter of the single wire 40. Thus, when the single wire 40 is fixed between the two adjacent wall portions 3111, the wire 40 can be sandwiched between the two wall portions 3111 and firmly fixed, so that the wire can be further prevented from moving left and right, and the wire can be prevented from floating.

In at least one embodiment, as shown in fig. 4, the case 30 further includes a sidewall 320 extending axially from a radial end of the base 310, an outer surface 320a of the sidewall 320 being formed with a hook 321 accommodating at least a portion of the other end of the wire 40.

As shown in fig. 5, the second guide portion 312 extends to the radial end of the base portion 310 in the second direction F2, and the range of coverage of the second guide portion 312 in the circumferential direction of the radial end of the base portion 310 overlaps with the range of coverage of the hook portion 321 in the circumferential direction. Thereby, the wire guided by the second guide portion 312 is further guided and fixed by the hook portion, and the wire is further suppressed from floating.

In at least one embodiment, as shown in fig. 4, the hook 321 has a root portion 3211 protruding from the side wall 320 and a claw portion 3212 extending from an end of the root portion 3211 remote from the side wall 320 to a circumferential side, for example, a side turned in a circumferential counterclockwise direction as shown in fig. 4. In addition, the wire 40 (not shown in fig. 4) is bent from one end of the first guide portion 311 away from the edge of the through hole 310a to the circumferential side into the second guide portion 312.

That is, the wire is continuously bent in the same direction as the direction in which the wire is bent from the second guide portion 312 to the hook portion 321 and from the first direction F1 to the second direction F2, so that the wire can be further prevented from floating, and the wire guiding operation can be further facilitated.

In at least one embodiment, as shown in fig. 5, the distance S between the end of the pawl portion 3212 adjacent the side wall 320 and the side wall 320 is less than the diameter of the wire 40 (not identified in fig. 5). Thereby, the claw portion 3212 can further clamp the wire with the side wall 320, and thus the wire can be further prevented from floating.

According to the embodiment of the application, the first guide part and the second guide part which extend along different directions are used for guiding the wire, so that the wire is bent from one direction to the other direction, the wire is fixed by the contact of the restoring force of the wire and the first guide part and the second guide part, the wire is prevented from moving left and right, the abrasion of the wire is restrained, and the service life of the fan is prolonged.

While the application has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this application will occur to those skilled in the art in light of the spirit and principles of this application, and such modifications and alterations are also within the scope of this application.

Claims (10)

1. A fan, comprising:

An impeller that rotates around a central axis;

a motor that drives the impeller to rotate about the central axis;

A casing accommodating the impeller and the motor and supporting the motor;

One end of the lead is connected with the motor, and the other end of the lead is connected with external equipment positioned outside the shell;

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

The casing comprises a base part, wherein a through hole penetrating along the axial direction is formed in the base part, a first guide part and a second guide part which guide the extending direction of the other end of the wire are formed on the outer surface of the base part, and the other end of the wire penetrates out of the through hole and is accommodated by the first guide part and the second guide part;

one end of the first guide part is connected with at least one part of the edge of the through hole, the other end of the first guide part extends in a direction away from the edge of the through hole, the projection of the first guide part on the outer surface of the base part extends along a first direction,

One end of the second guide part is connected with one end of the first guide part far away from the edge of the through hole, the other end of the second guide part extends in a direction far away from the first guide part, and the projection of the second guide part on the outer surface of the base part extends in a second direction different from the first direction.

2. The fan as claimed in claim 1, wherein,

The projection of the first guide portion onto the outer surface of the base portion forms an obtuse angle with the projection of the second guide portion onto the outer surface of the base portion.

3. The fan as claimed in claim 1, wherein,

The first guide portion includes a wall portion protruding axially from an outer surface of the base portion, a projection of the wall portion on the outer surface of the base portion extending in the first direction.

4. A fan as claimed in claim 3, wherein,

The wall portion extends in the first direction for a length less than a length of the first guide portion extending in the first direction.

5. A fan as claimed in claim 3, wherein,

The number of the wall portions is plural, and the other end of the wire is guided by two adjacent wall portions.

6. The fan as recited in claim 5, wherein,

The number of the wires is multiple, and the distance between two adjacent wall parts is smaller than or equal to the outer diameter of a single wire.

7. The fan as claimed in claim 1, wherein,

The chassis further includes a sidewall extending axially from a radial end of the base,

The outer surface of the sidewall is formed with a hook portion accommodating at least a portion of the other end of the wire,

The second guide portion extends in the second direction to the radial end portion of the base portion,

A range of the second guide portion covered in the circumferential direction of the radial end portion of the base portion overlaps with a range of the hook portion covered in the circumferential direction.

8. The fan as recited in claim 7, wherein,

The hook portion has a root portion protruding from the side wall and a claw portion extending to one circumferential side from an end portion of the root portion away from the side wall,

The wire is bent from one end of the first guide portion away from the edge of the through hole to the circumferential side into the second guide portion.

9. The fan as claimed in claim 8, wherein,

The distance between the end of the claw portion, which is close to the side wall, and the side wall is smaller than the diameter of the wire.

10. The fan as claimed in claim 1, wherein,

The housing is formed of a resin material.